diff --git a/[refs] b/[refs] index 52c93223b3a9..459ca2d497ff 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 50aa485e1abb7566ce68418c7bbc6a6b454f9039 +refs/heads/master: 88c8199b9d2f5ec0a8468a0495ba4c9656846500 diff --git a/trunk/.gitignore b/trunk/.gitignore index a232295b99ac..27c3e839b54e 100644 --- a/trunk/.gitignore +++ b/trunk/.gitignore @@ -7,6 +7,7 @@ # .* *.o +*.o.* *.a *.s *.ko diff --git a/trunk/Documentation/DMA-API.txt b/trunk/Documentation/DMA-API.txt index 805db4b2cba6..cc7a8c39fb6f 100644 --- a/trunk/Documentation/DMA-API.txt +++ b/trunk/Documentation/DMA-API.txt @@ -26,7 +26,7 @@ Part Ia - Using large dma-coherent buffers void * dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, int flag) + dma_addr_t *dma_handle, gfp_t flag) void * pci_alloc_consistent(struct pci_dev *dev, size_t size, dma_addr_t *dma_handle) @@ -38,7 +38,7 @@ to make sure to flush the processor's write buffers before telling devices to read that memory.) This routine allocates a region of bytes of consistent memory. -it also returns a which may be cast to an unsigned +It also returns a which may be cast to an unsigned integer the same width as the bus and used as the physical address base of the region. @@ -52,21 +52,21 @@ The simplest way to do that is to use the dma_pool calls (see below). The flag parameter (dma_alloc_coherent only) allows the caller to specify the GFP_ flags (see kmalloc) for the allocation (the -implementation may chose to ignore flags that affect the location of +implementation may choose to ignore flags that affect the location of the returned memory, like GFP_DMA). For pci_alloc_consistent, you must assume GFP_ATOMIC behaviour. void -dma_free_coherent(struct device *dev, size_t size, void *cpu_addr +dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, dma_addr_t dma_handle) void -pci_free_consistent(struct pci_dev *dev, size_t size, void *cpu_addr +pci_free_consistent(struct pci_dev *dev, size_t size, void *cpu_addr, dma_addr_t dma_handle) Free the region of consistent memory you previously allocated. dev, size and dma_handle must all be the same as those passed into the consistent allocate. cpu_addr must be the virtual address returned by -the consistent allocate +the consistent allocate. Part Ib - Using small dma-coherent buffers @@ -77,9 +77,9 @@ To get this part of the dma_ API, you must #include Many drivers need lots of small dma-coherent memory regions for DMA descriptors or I/O buffers. Rather than allocating in units of a page or more using dma_alloc_coherent(), you can use DMA pools. These work -much like a struct kmem_cache, except that they use the dma-coherent allocator +much like a struct kmem_cache, except that they use the dma-coherent allocator, not __get_free_pages(). Also, they understand common hardware constraints -for alignment, like queue heads needing to be aligned on N byte boundaries. +for alignment, like queue heads needing to be aligned on N-byte boundaries. struct dma_pool * @@ -102,15 +102,15 @@ crossing restrictions, pass 0 for alloc; passing 4096 says memory allocated from this pool must not cross 4KByte boundaries. - void *dma_pool_alloc(struct dma_pool *pool, int gfp_flags, + void *dma_pool_alloc(struct dma_pool *pool, gfp_t gfp_flags, dma_addr_t *dma_handle); - void *pci_pool_alloc(struct pci_pool *pool, int gfp_flags, + void *pci_pool_alloc(struct pci_pool *pool, gfp_t gfp_flags, dma_addr_t *dma_handle); This allocates memory from the pool; the returned memory will meet the size and alignment requirements specified at creation time. Pass GFP_ATOMIC to -prevent blocking, or if it's permitted (not in_interrupt, not holding SMP locks) +prevent blocking, or if it's permitted (not in_interrupt, not holding SMP locks), pass GFP_KERNEL to allow blocking. Like dma_alloc_coherent(), this returns two values: an address usable by the cpu, and the dma address usable by the pool's device. @@ -123,7 +123,7 @@ pool's device. dma_addr_t addr); This puts memory back into the pool. The pool is what was passed to -the pool allocation routine; the cpu and dma addresses are what +the pool allocation routine; the cpu (vaddr) and dma addresses are what were returned when that routine allocated the memory being freed. @@ -209,18 +209,18 @@ Notes: Not all memory regions in a machine can be mapped by this API. Further, regions that appear to be physically contiguous in kernel virtual space may not be contiguous as physical memory. Since this API does not provide any scatter/gather capability, it will fail -if the user tries to map a non physically contiguous piece of memory. +if the user tries to map a non-physically contiguous piece of memory. For this reason, it is recommended that memory mapped by this API be -obtained only from sources which guarantee to be physically contiguous +obtained only from sources which guarantee it to be physically contiguous (like kmalloc). Further, the physical address of the memory must be within the dma_mask of the device (the dma_mask represents a bit mask of the -addressable region for the device. i.e. if the physical address of +addressable region for the device. I.e., if the physical address of the memory anded with the dma_mask is still equal to the physical address, then the device can perform DMA to the memory). In order to ensure that the memory allocated by kmalloc is within the dma_mask, -the driver may specify various platform dependent flags to restrict +the driver may specify various platform-dependent flags to restrict the physical memory range of the allocation (e.g. on x86, GFP_DMA guarantees to be within the first 16Mb of available physical memory, as required by ISA devices). @@ -244,14 +244,14 @@ are guaranteed also to be cache line boundaries). DMA_TO_DEVICE synchronisation must be done after the last modification of the memory region by the software and before it is handed off to -the driver. Once this primitive is used. Memory covered by this -primitive should be treated as read only by the device. If the device +the driver. Once this primitive is used, memory covered by this +primitive should be treated as read-only by the device. If the device may write to it at any point, it should be DMA_BIDIRECTIONAL (see below). DMA_FROM_DEVICE synchronisation must be done before the driver accesses data that may be changed by the device. This memory should -be treated as read only by the driver. If the driver needs to write +be treated as read-only by the driver. If the driver needs to write to it at any point, it should be DMA_BIDIRECTIONAL (see below). DMA_BIDIRECTIONAL requires special handling: it means that the driver @@ -261,7 +261,7 @@ you must always sync bidirectional memory twice: once before the memory is handed off to the device (to make sure all memory changes are flushed from the processor) and once before the data may be accessed after being used by the device (to make sure any processor -cache lines are updated with data that the device may have changed. +cache lines are updated with data that the device may have changed). void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, @@ -302,8 +302,8 @@ pci_dma_mapping_error(dma_addr_t dma_addr) In some circumstances dma_map_single and dma_map_page will fail to create a mapping. A driver can check for these errors by testing the returned -dma address with dma_mapping_error(). A non zero return value means the mapping -could not be created and the driver should take appropriate action (eg +dma address with dma_mapping_error(). A non-zero return value means the mapping +could not be created and the driver should take appropriate action (e.g. reduce current DMA mapping usage or delay and try again later). int @@ -315,7 +315,7 @@ reduce current DMA mapping usage or delay and try again later). Maps a scatter gather list from the block layer. -Returns: the number of physical segments mapped (this may be shorted +Returns: the number of physical segments mapped (this may be shorter than passed in if the block layer determines that some elements of the scatter/gather list are physically adjacent and thus may be mapped with a single entry). @@ -357,7 +357,7 @@ accessed sg->address and sg->length as shown above. pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nents, int direction) -unmap the previously mapped scatter/gather list. All the parameters +Unmap the previously mapped scatter/gather list. All the parameters must be the same as those and passed in to the scatter/gather mapping API. @@ -377,7 +377,7 @@ void pci_dma_sync_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nelems, int direction) -synchronise a single contiguous or scatter/gather mapping. All the +Synchronise a single contiguous or scatter/gather mapping. All the parameters must be the same as those passed into the single mapping API. @@ -406,7 +406,7 @@ API at all. void * dma_alloc_noncoherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, int flag) + dma_addr_t *dma_handle, gfp_t flag) Identical to dma_alloc_coherent() except that the platform will choose to return either consistent or non-consistent memory as it sees @@ -426,34 +426,34 @@ void dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr, dma_addr_t dma_handle) -free memory allocated by the nonconsistent API. All parameters must +Free memory allocated by the nonconsistent API. All parameters must be identical to those passed in (and returned by dma_alloc_noncoherent()). int dma_is_consistent(struct device *dev, dma_addr_t dma_handle) -returns true if the device dev is performing consistent DMA on the memory +Returns true if the device dev is performing consistent DMA on the memory area pointed to by the dma_handle. int dma_get_cache_alignment(void) -returns the processor cache alignment. This is the absolute minimum +Returns the processor cache alignment. This is the absolute minimum alignment *and* width that you must observe when either mapping memory or doing partial flushes. Notes: This API may return a number *larger* than the actual cache line, but it will guarantee that one or more cache lines fit exactly into the width returned by this call. It will also always be a power -of two for easy alignment +of two for easy alignment. void dma_sync_single_range(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction) -does a partial sync. starting at offset and continuing for size. You +Does a partial sync, starting at offset and continuing for size. You must be careful to observe the cache alignment and width when doing anything like this. You must also be extra careful about accessing memory you intend to sync partially. @@ -472,21 +472,20 @@ dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, dma_addr_t device_addr, size_t size, int flags) - Declare region of memory to be handed out by dma_alloc_coherent when it's asked for coherent memory for this device. bus_addr is the physical address to which the memory is currently assigned in the bus responding region (this will be used by the -platform to perform the mapping) +platform to perform the mapping). device_addr is the physical address the device needs to be programmed with actually to address this memory (this will be handed out as the -dma_addr_t in dma_alloc_coherent()) +dma_addr_t in dma_alloc_coherent()). size is the size of the area (must be multiples of PAGE_SIZE). -flags can be or'd together and are +flags can be or'd together and are: DMA_MEMORY_MAP - request that the memory returned from dma_alloc_coherent() be directly writable. @@ -494,7 +493,7 @@ dma_alloc_coherent() be directly writable. DMA_MEMORY_IO - request that the memory returned from dma_alloc_coherent() be addressable using read/write/memcpy_toio etc. -One or both of these flags must be present +One or both of these flags must be present. DMA_MEMORY_INCLUDES_CHILDREN - make the declared memory be allocated by dma_alloc_coherent of any child devices of this one (for memory residing @@ -528,7 +527,7 @@ dma_release_declared_memory(struct device *dev) Remove the memory region previously declared from the system. This API performs *no* in-use checking for this region and will return unconditionally having removed all the required structures. It is the -drivers job to ensure that no parts of this memory region are +driver's job to ensure that no parts of this memory region are currently in use. void * @@ -538,12 +537,10 @@ dma_mark_declared_memory_occupied(struct device *dev, This is used to occupy specific regions of the declared space (dma_alloc_coherent() will hand out the first free region it finds). -device_addr is the *device* address of the region requested +device_addr is the *device* address of the region requested. -size is the size (and should be a page sized multiple). +size is the size (and should be a page-sized multiple). The return value will be either a pointer to the processor virtual address of the memory, or an error (via PTR_ERR()) if any part of the region is occupied. - - diff --git a/trunk/Documentation/DocBook/kernel-api.tmpl b/trunk/Documentation/DocBook/kernel-api.tmpl index ec7c498b69fc..b886f52a9aac 100644 --- a/trunk/Documentation/DocBook/kernel-api.tmpl +++ b/trunk/Documentation/DocBook/kernel-api.tmpl @@ -380,7 +380,6 @@ X!Edrivers/base/interface.c !Edrivers/base/bus.c Device Drivers Power Management -!Edrivers/base/power/main.c !Edrivers/base/power/resume.c !Edrivers/base/power/suspend.c @@ -398,12 +397,12 @@ X!Edrivers/acpi/pci_bind.c --> Device drivers PnP support -!Edrivers/pnp/core.c +!Idrivers/pnp/core.c !Edrivers/pnp/card.c -!Edrivers/pnp/driver.c +!Idrivers/pnp/driver.c !Edrivers/pnp/manager.c !Edrivers/pnp/support.c @@ -709,7 +708,6 @@ X!Idrivers/video/console/fonts.c kernel, without continually transferring them between the kernel and user space. -!Iinclude/linux/splice.h !Ffs/splice.c diff --git a/trunk/Documentation/dontdiff b/trunk/Documentation/dontdiff index 595a5ea4c690..7b9551fc6fe3 100644 --- a/trunk/Documentation/dontdiff +++ b/trunk/Documentation/dontdiff @@ -18,6 +18,7 @@ *.moc *.mod.c *.o +*.o.* *.orig *.out *.pdf @@ -163,6 +164,8 @@ raid6tables.c relocs series setup +setup.bin +setup.elf sim710_d.h* sImage sm_tbl* diff --git a/trunk/Documentation/filesystems/hfsplus.txt b/trunk/Documentation/filesystems/hfsplus.txt new file mode 100644 index 000000000000..af1628a1061c --- /dev/null +++ b/trunk/Documentation/filesystems/hfsplus.txt @@ -0,0 +1,59 @@ + +Macintosh HFSPlus Filesystem for Linux +====================================== + +HFSPlus is a filesystem first introduced in MacOS 8.1. +HFSPlus has several extensions to HFS, including 32-bit allocation +blocks, 255-character unicode filenames, and file sizes of 2^63 bytes. + + +Mount options +============= + +When mounting an HFSPlus filesystem, the following options are accepted: + + creator=cccc, type=cccc + Specifies the creator/type values as shown by the MacOS finder + used for creating new files. Default values: '????'. + + uid=n, gid=n + Specifies the user/group that owns all files on the filesystem + that have uninitialized permissions structures. + Default: user/group id of the mounting process. + + umask=n + Specifies the umask (in octal) used for files and directories + that have uninitialized permissions structures. + Default: umask of the mounting process. + + session=n + Select the CDROM session to mount as HFSPlus filesystem. Defaults to + leaving that decision to the CDROM driver. This option will fail + with anything but a CDROM as underlying devices. + + part=n + Select partition number n from the devices. This option only makes + sense for CDROMs because they can't be partitioned under Linux. + For disk devices the generic partition parsing code does this + for us. Defaults to not parsing the partition table at all. + + decompose + Decompose file name characters. + + nodecompose + Do not decompose file name characters. + + force + Used to force write access to volumes that are marked as journalled + or locked. Use at your own risk. + + nls=cccc + Encoding to use when presenting file names. + + +References +========== + +kernel source: + +Apple Technote 1150 http://developer.apple.com/technotes/tn/tn1150.html diff --git a/trunk/Documentation/hpet.txt b/trunk/Documentation/hpet.txt index b7a3dc38dd52..6ad52d9dad6c 100644 --- a/trunk/Documentation/hpet.txt +++ b/trunk/Documentation/hpet.txt @@ -5,7 +5,7 @@ for the 8254 and Real Time Clock (RTC) periodic timer functionality. Each HPET can have up to 32 timers. It is possible to configure the first two timers as legacy replacements for 8254 and RTC periodic timers. A specification done by Intel and Microsoft can be found at -. +. The driver supports detection of HPET driver allocation and initialization of the HPET before the driver module_init routine is called. This enables diff --git a/trunk/Documentation/ja_JP/HOWTO b/trunk/Documentation/ja_JP/HOWTO index b2446a090870..9f08dab1e75b 100644 --- a/trunk/Documentation/ja_JP/HOWTO +++ b/trunk/Documentation/ja_JP/HOWTO @@ -1,23 +1,24 @@ -NOTE: -This is Japanese translated version of "Documentation/HOWTO". -This one is maintained by Tsugikazu Shibata -and JF Project team . -If you find difference with original file or problem in translation, -please contact maintainer of this file or JF project. - -Please also note that purpose of this file is easier to read for non -English natives and not to be intended to fork. So, if you have any -comments or updates of this file, please try to update Original(English) -file at first. - -Last Updated: 2007/06/04 +NOTE: +This is a version of Documentation/HOWTO translated into Japanese. +This document is maintained by Tsugikazu Shibata +and the JF Project team . +If you find any difference between this document and the original file +or a problem with the translation, +please contact the maintainer of this file or JF project. + +Please also note that the purpose of this file is to be easier to read +for non English (read: Japanese) speakers and is not intended as a +fork. So if you have any comments or updates for this file, please try +to update the original English file first. + +Last Updated: 2007/07/18 ================================== これは、 -linux-2.6.21/Documentation/HOWTO +linux-2.6.22/Documentation/HOWTO の和訳です。 翻訳団体： JF プロジェクト < http://www.linux.or.jp/JF/ > -翻訳日： 2007/06/04 +翻訳日： 2007/07/16 翻訳者： Tsugikazu Shibata 校正者： 松倉さん 小林 雅典さん (Masanori Kobayasi) @@ -52,6 +53,7 @@ Linux カーネル開発コミュニティと共に活動するやり方を学 また、このコミュニティがなぜ今うまくまわっているのかという理由の一部も 説明しようと試みています。 + カーネルは 少量のアーキテクチャ依存部分がアセンブリ言語で書かれている 以外は大部分は C 言語で書かれています。C言語をよく理解していることはカー ネル開発者には必要です。アーキテクチャ向けの低レベル部分の開発をするの @@ -141,6 +143,7 @@ Linux カーネルソースツリーは幅広い範囲のドキュメントを これらのルールに従えばうまくいくことを保証することではありません が (すべてのパッチは内容とスタイルについて精査を受けるので)、 ルールに従わなければ間違いなくうまくいかないでしょう。 + この他にパッチを作る方法についてのよくできた記述は- "The Perfect Patch" @@ -360,44 +363,42 @@ linux-kernel メーリングリストで収集された多数のパッチと同 git ツリー- - Kbuild の開発ツリー、Sam Ravnborg - kernel.org:/pub/scm/linux/kernel/git/sam/kbuild.git + git.kernel.org:/pub/scm/linux/kernel/git/sam/kbuild.git - ACPI の開発ツリー、 Len Brown - kernel.org:/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git + git.kernel.org:/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git - Block の開発ツリー、Jens Axboe - kernel.org:/pub/scm/linux/kernel/git/axboe/linux-2.6-block.git + git.kernel.org:/pub/scm/linux/kernel/git/axboe/linux-2.6-block.git - DRM の開発ツリー、Dave Airlie - kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6.git + git.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6.git - ia64 の開発ツリー、Tony Luck - kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6.git - - - ieee1394 の開発ツリー、Jody McIntyre - kernel.org:/pub/scm/linux/kernel/git/scjody/ieee1394.git + git.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6.git - infiniband, Roland Dreier - kernel.org:/pub/scm/linux/kernel/git/roland/infiniband.git + git.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband.git - libata, Jeff Garzik - kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git + git.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git - ネットワークドライバ, Jeff Garzik - kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git + git.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git - pcmcia, Dominik Brodowski - kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6.git + git.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6.git - SCSI, James Bottomley - kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git - - その他の git カーネルツリーは http://kernel.org/git に一覧表がありま - す。 + git.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git quilt ツリー- - USB, PCI ドライバコアと I2C, Greg Kroah-Hartman kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/ + - x86-64 と i386 の仲間 Andi Kleen + + その他のカーネルツリーは http://git.kernel.org/ と MAINTAINERS ファ + イルに一覧表があります。 バグレポート ------------- @@ -508,6 +509,7 @@ MAINTAINERS ファイルにリストがありますので参照してくださ せん*。単に自分のパッチに対して指摘された問題を全て修正して再送すれば いいのです。 + カーネルコミュニティと企業組織のちがい ----------------------------------------------------------------- @@ -577,6 +579,7 @@ Linux カーネルコミュニティは、一度に大量のコードの塊を かし、500行のパッチは、正しいことをレビューするのに数時間かかるかも しれません(時間はパッチのサイズなどにより指数関数に比例してかかりま す) + 小さいパッチは何かあったときにデバッグもとても簡単になります。パッ チを1個1個取り除くのは、とても大きなパッチを当てた後に(かつ、何かお かしくなった後で)解剖するのに比べればとても簡単です。 @@ -591,6 +594,7 @@ Linux カーネルコミュニティは、一度に大量のコードの塊を う。先生は簡潔な最高の解をみたいのです。良い生徒はこれを知って おり、そして最終解の前の中間作業を提出することは決してないので す" + カーネル開発でもこれは同じです。メンテナー達とレビューア達は、 問題を解決する解の背後になる思考プロセスをみたいとは思いません。 彼らは単純であざやかな解決方法をみたいのです。 diff --git a/trunk/Documentation/ja_JP/stable_api_nonsense.txt b/trunk/Documentation/ja_JP/stable_api_nonsense.txt index b3f2b27f0881..7653b5cbfed2 100644 --- a/trunk/Documentation/ja_JP/stable_api_nonsense.txt +++ b/trunk/Documentation/ja_JP/stable_api_nonsense.txt @@ -1,17 +1,17 @@ NOTE: -This is a Japanese translated version of -"Documentation/stable_api_nonsense.txt". -This one is maintained by -IKEDA, Munehiro -and JF Project team . -If you find difference with original file or problem in translation, +This is a version of Documentation/stable_api_nonsense.txt into Japanese. +This document is maintained by IKEDA, Munehiro +and the JF Project team . +If you find any difference between this document and the original file +or a problem with the translation, please contact the maintainer of this file or JF project. -Please also note that purpose of this file is easier to read for non -English natives and not to be intended to fork. So, if you have any -comments or updates of this file, please try to update -Original(English) file at first. +Please also note that the purpose of this file is to be easier to read +for non English (read: Japanese) speakers and is not intended as a +fork. So if you have any comments or updates of this file, please try +to update the original English file first. +Last Updated: 2007/07/18 ================================== これは、 linux-2.6.22-rc4/Documentation/stable_api_nonsense.txt の和訳 diff --git a/trunk/Documentation/kernel-parameters.txt b/trunk/Documentation/kernel-parameters.txt index 1156653338fe..efdb42fd3fb8 100644 --- a/trunk/Documentation/kernel-parameters.txt +++ b/trunk/Documentation/kernel-parameters.txt @@ -41,7 +41,6 @@ parameter is applicable: EIDE EIDE/ATAPI support is enabled. FB The frame buffer device is enabled. HW Appropriate hardware is enabled. - IA-32 IA-32 aka i386 architecture is enabled. IA-64 IA-64 architecture is enabled. IOSCHED More than one I/O scheduler is enabled. IP_PNP IP DHCP, BOOTP, or RARP is enabled. @@ -58,14 +57,14 @@ parameter is applicable: MDA MDA console support is enabled. MOUSE Appropriate mouse support is enabled. MSI Message Signaled Interrupts (PCI). - MTD MTD support is enabled. + MTD MTD (Memory Technology Device) support is enabled. NET Appropriate network support is enabled. NUMA NUMA support is enabled. GENERIC_TIME The generic timeofday code is enabled. NFS Appropriate NFS support is enabled. OSS OSS sound support is enabled. - PV_OPS A paravirtualized kernel - PARIDE The ParIDE subsystem is enabled. + PV_OPS A paravirtualized kernel is enabled. + PARIDE The ParIDE (parallel port IDE) subsystem is enabled. PARISC The PA-RISC architecture is enabled. PCI PCI bus support is enabled. PCMCIA The PCMCIA subsystem is enabled. @@ -92,6 +91,7 @@ parameter is applicable: VT Virtual terminal support is enabled. WDT Watchdog support is enabled. XT IBM PC/XT MFM hard disk support is enabled. + X86-32 X86-32, aka i386 architecture is enabled. X86-64 X86-64 architecture is enabled. More X86-64 boot options can be found in Documentation/x86_64/boot-options.txt . @@ -123,10 +123,6 @@ and is between 256 and 4096 characters. It is defined in the file ./include/asm/setup.h as COMMAND_LINE_SIZE. - 53c7xx= [HW,SCSI] Amiga SCSI controllers - See header of drivers/scsi/53c7xx.c. - See also Documentation/scsi/ncr53c7xx.txt. - acpi= [HW,ACPI,X86-64,i386] Advanced Configuration and Power Interface Format: { force | off | ht | strict | noirq } @@ -223,7 +219,7 @@ and is between 256 and 4096 characters. It is defined in the file acpi_fake_ecdt [HW,ACPI] Workaround failure due to BIOS lacking ECDT - acpi_pm_good [IA-32,X86-64] + acpi_pm_good [X86-32,X86-64] Override the pmtimer bug detection: force the kernel to assume that this machine's pmtimer latches its value and always returns good values. @@ -286,7 +282,8 @@ and is between 256 and 4096 characters. It is defined in the file not play well with APC CPU idle - disable it if you have APC and your system crashes randomly. - apic= [APIC,i386] Change the output verbosity whilst booting + apic= [APIC,i386] Advanced Programmable Interrupt Controller + Change the output verbosity whilst booting Format: { quiet (default) | verbose | debug } Change the amount of debugging information output when initialising the APIC and IO-APIC components. @@ -360,7 +357,7 @@ and is between 256 and 4096 characters. It is defined in the file c101= [NET] Moxa C101 synchronous serial card - cachesize= [BUGS=IA-32] Override level 2 CPU cache size detection. + cachesize= [BUGS=X86-32] Override level 2 CPU cache size detection. Sometimes CPU hardware bugs make them report the cache size incorrectly. The kernel will attempt work arounds to fix known problems, but for some CPUs it is not @@ -379,7 +376,7 @@ and is between 256 and 4096 characters. It is defined in the file Value can be changed at runtime via /selinux/checkreqprot. - clock= [BUGS=IA-32, HW] gettimeofday clocksource override. + clock= [BUGS=X86-32, HW] gettimeofday clocksource override. [Deprecated] Forces specified clocksource (if available) to be used when calculating gettimeofday(). If specified @@ -397,7 +394,7 @@ and is between 256 and 4096 characters. It is defined in the file [ARM] imx_timer1,OSTS,netx_timer,mpu_timer2, pxa_timer,timer3,32k_counter,timer0_1 [AVR32] avr32 - [IA-32] pit,hpet,tsc,vmi-timer; + [X86-32] pit,hpet,tsc,vmi-timer; scx200_hrt on Geode; cyclone on IBM x440 [MIPS] MIPS [PARISC] cr16 @@ -417,7 +414,7 @@ and is between 256 and 4096 characters. It is defined in the file over the 8254 in addition to over the IO-APIC. The kernel tries to set a sensible default. - hpet= [IA-32,HPET] option to disable HPET and use PIT. + hpet= [X86-32,HPET] option to disable HPET and use PIT. Format: disable com20020= [HW,NET] ARCnet - COM20020 chipset @@ -554,7 +551,7 @@ and is between 256 and 4096 characters. It is defined in the file dtc3181e= [HW,SCSI] - earlyprintk= [IA-32,X86-64,SH] + earlyprintk= [X86-32,X86-64,SH] earlyprintk=vga earlyprintk=serial[,ttySn[,baudrate]] @@ -592,7 +589,7 @@ and is between 256 and 4096 characters. It is defined in the file eisa_irq_edge= [PARISC,HW] See header of drivers/parisc/eisa.c. - elanfreq= [IA-32] + elanfreq= [X86-32] See comment before function elanfreq_setup() in arch/i386/kernel/cpu/cpufreq/elanfreq.c. @@ -601,7 +598,7 @@ and is between 256 and 4096 characters. It is defined in the file See Documentation/block/as-iosched.txt and Documentation/block/deadline-iosched.txt for details. - elfcorehdr= [IA-32, X86_64] + elfcorehdr= [X86-32, X86_64] Specifies physical address of start of kernel core image elf header. Generally kexec loader will pass this option to capture kernel. @@ -683,7 +680,7 @@ and is between 256 and 4096 characters. It is defined in the file hisax= [HW,ISDN] See Documentation/isdn/README.HiSax. - hugepages= [HW,IA-32,IA-64] Maximal number of HugeTLB pages. + hugepages= [HW,X86-32,IA-64] Maximal number of HugeTLB pages. i8042.direct [HW] Put keyboard port into non-translated mode i8042.dumbkbd [HW] Pretend that controller can only read data from @@ -775,7 +772,8 @@ and is between 256 and 4096 characters. It is defined in the file See Documentation/nfsroot.txt. ip2= [HW] Set IO/IRQ pairs for up to 4 IntelliPort boards - See comment before ip2_setup() in drivers/char/ip2.c. + See comment before ip2_setup() in + drivers/char/ip2/ip2base.c. ips= [HW,SCSI] Adaptec / IBM ServeRAID controller See header of drivers/scsi/ips.c. @@ -824,7 +822,7 @@ and is between 256 and 4096 characters. It is defined in the file js= [HW,JOY] Analog joystick See Documentation/input/joystick.txt. - kernelcore=nn[KMG] [KNL,IA-32,IA-64,PPC,X86-64] This parameter + kernelcore=nn[KMG] [KNL,X86-32,IA-64,PPC,X86-64] This parameter specifies the amount of memory usable by the kernel for non-movable allocations. The requested amount is spread evenly throughout all nodes in the system. The @@ -840,7 +838,7 @@ and is between 256 and 4096 characters. It is defined in the file use the HighMem zone if it exists, and the Normal zone if it does not. - movablecore=nn[KMG] [KNL,IA-32,IA-64,PPC,X86-64] This parameter + movablecore=nn[KMG] [KNL,X86-32,IA-64,PPC,X86-64] This parameter is similar to kernelcore except it specifies the amount of memory used for migratable allocations. If both kernelcore and movablecore is specified, @@ -852,28 +850,20 @@ and is between 256 and 4096 characters. It is defined in the file keepinitrd [HW,ARM] - kstack=N [IA-32,X86-64] Print N words from the kernel stack + kstack=N [X86-32,X86-64] Print N words from the kernel stack in oops dumps. l2cr= [PPC] - lapic [IA-32,APIC] Enable the local APIC even if BIOS + lapic [X86-32,APIC] Enable the local APIC even if BIOS disabled it. - lapic_timer_c2_ok [IA-32,x86-64,APIC] trust the local apic timer in + lapic_timer_c2_ok [X86-32,x86-64,APIC] trust the local apic timer in C2 power state. lasi= [HW,SCSI] PARISC LASI driver for the 53c700 chip Format: addr:,irq: - legacy_serial.force [HW,IA-32,X86-64] - Probe for COM ports at legacy addresses even - if PNPBIOS or ACPI should describe them. This - is for working around firmware defects. - - llsc*= [IA64] See function print_params() in - arch/ia64/sn/kernel/llsc4.c. - load_ramdisk= [RAM] List of ramdisks to load from floppy See Documentation/ramdisk.txt. @@ -979,11 +969,11 @@ and is between 256 and 4096 characters. It is defined in the file [SCSI] Maximum number of LUNs received. Should be between 1 and 16384. - mca-pentium [BUGS=IA-32] + mca-pentium [BUGS=X86-32] mcatest= [IA-64] - mce [IA-32] Machine Check Exception + mce [X86-32] Machine Check Exception md= [HW] RAID subsystems devices and level See Documentation/md.txt. @@ -995,14 +985,14 @@ and is between 256 and 4096 characters. It is defined in the file mem=nn[KMG] [KNL,BOOT] Force usage of a specific amount of memory Amount of memory to be used when the kernel is not able to see the whole system memory or for test. - [IA-32] Use together with memmap= to avoid physical + [X86-32] Use together with memmap= to avoid physical address space collisions. Without memmap= PCI devices could be placed at addresses belonging to unused RAM. - mem=nopentium [BUGS=IA-32] Disable usage of 4MB pages for kernel + mem=nopentium [BUGS=X86-32] Disable usage of 4MB pages for kernel memory. - memmap=exactmap [KNL,IA-32,X86_64] Enable setting of an exact + memmap=exactmap [KNL,X86-32,X86_64] Enable setting of an exact E820 memory map, as specified by the user. Such memmap=exactmap lines can be constructed based on BIOS output or other requirements. See the memmap=nn@ss @@ -1046,7 +1036,7 @@ and is between 256 and 4096 characters. It is defined in the file ,[,,,,] mtdparts= [MTD] - See drivers/mtd/cmdline.c. + See drivers/mtd/cmdlinepart.c. mtouchusb.raw_coordinates= [HW] Make the MicroTouch USB driver use raw coordinates @@ -1088,9 +1078,9 @@ and is between 256 and 4096 characters. It is defined in the file [NFS] set the maximum lifetime for idmapper cache entries. - nmi_watchdog= [KNL,BUGS=IA-32] Debugging features for SMP kernels + nmi_watchdog= [KNL,BUGS=X86-32] Debugging features for SMP kernels - no387 [BUGS=IA-32] Tells the kernel to use the 387 maths + no387 [BUGS=X86-32] Tells the kernel to use the 387 maths emulation library even if a 387 maths coprocessor is present. @@ -1121,17 +1111,17 @@ and is between 256 and 4096 characters. It is defined in the file noexec [IA-64] - noexec [IA-32,X86-64] + noexec [X86-32,X86-64] noexec=on: enable non-executable mappings (default) noexec=off: disable nn-executable mappings - nofxsr [BUGS=IA-32] Disables x86 floating point extended + nofxsr [BUGS=X86-32] Disables x86 floating point extended register save and restore. The kernel will only save legacy floating-point registers on task switch. nohlt [BUGS=ARM] - no-hlt [BUGS=IA-32] Tells the kernel that the hlt + no-hlt [BUGS=X86-32] Tells the kernel that the hlt instruction doesn't work correctly and not to use it. @@ -1146,12 +1136,12 @@ and is between 256 and 4096 characters. It is defined in the file Valid arguments: on, off Default: on - noirqbalance [IA-32,SMP,KNL] Disable kernel irq balancing + noirqbalance [X86-32,SMP,KNL] Disable kernel irq balancing - noirqdebug [IA-32] Disables the code which attempts to detect and + noirqdebug [X86-32] Disables the code which attempts to detect and disable unhandled interrupt sources. - no_timer_check [IA-32,X86_64,APIC] Disables the code which tests for + no_timer_check [X86-32,X86_64,APIC] Disables the code which tests for broken timer IRQ sources. noisapnp [ISAPNP] Disables ISA PnP code. @@ -1163,20 +1153,20 @@ and is between 256 and 4096 characters. It is defined in the file nojitter [IA64] Disables jitter checking for ITC timers. - nolapic [IA-32,APIC] Do not enable or use the local APIC. + nolapic [X86-32,APIC] Do not enable or use the local APIC. - nolapic_timer [IA-32,APIC] Do not use the local APIC timer. + nolapic_timer [X86-32,APIC] Do not use the local APIC timer. noltlbs [PPC] Do not use large page/tlb entries for kernel lowmem mapping on PPC40x. nomca [IA-64] Disable machine check abort handling - nomce [IA-32] Machine Check Exception + nomce [X86-32] Machine Check Exception - noreplace-paravirt [IA-32,PV_OPS] Don't patch paravirt_ops + noreplace-paravirt [X86-32,PV_OPS] Don't patch paravirt_ops - noreplace-smp [IA-32,SMP] Don't replace SMP instructions + noreplace-smp [X86-32,SMP] Don't replace SMP instructions with UP alternatives noresidual [PPC] Don't use residual data on PReP machines. @@ -1190,7 +1180,7 @@ and is between 256 and 4096 characters. It is defined in the file nosbagart [IA-64] - nosep [BUGS=IA-32] Disables x86 SYSENTER/SYSEXIT support. + nosep [BUGS=X86-32] Disables x86 SYSENTER/SYSEXIT support. nosmp [SMP] Tells an SMP kernel to act as a UP kernel. @@ -1198,7 +1188,7 @@ and is between 256 and 4096 characters. It is defined in the file nosync [HW,M68K] Disables sync negotiation for all devices. - notsc [BUGS=IA-32] Disable Time Stamp Counter + notsc [BUGS=X86-32] Disable Time Stamp Counter nousb [USB] Disable the USB subsystem @@ -1271,28 +1261,28 @@ and is between 256 and 4096 characters. It is defined in the file See also Documentation/paride.txt. pci=option[,option...] [PCI] various PCI subsystem options: - off [IA-32] don't probe for the PCI bus - bios [IA-32] force use of PCI BIOS, don't access + off [X86-32] don't probe for the PCI bus + bios [X86-32] force use of PCI BIOS, don't access the hardware directly. Use this if your machine has a non-standard PCI host bridge. - nobios [IA-32] disallow use of PCI BIOS, only direct + nobios [X86-32] disallow use of PCI BIOS, only direct hardware access methods are allowed. Use this if you experience crashes upon bootup and you suspect they are caused by the BIOS. - conf1 [IA-32] Force use of PCI Configuration + conf1 [X86-32] Force use of PCI Configuration Mechanism 1. - conf2 [IA-32] Force use of PCI Configuration + conf2 [X86-32] Force use of PCI Configuration Mechanism 2. - nommconf [IA-32,X86_64] Disable use of MMCONFIG for PCI + nommconf [X86-32,X86_64] Disable use of MMCONFIG for PCI Configuration nomsi [MSI] If the PCI_MSI kernel config parameter is enabled, this kernel boot option can be used to disable the use of MSI interrupts system-wide. - nosort [IA-32] Don't sort PCI devices according to + nosort [X86-32] Don't sort PCI devices according to order given by the PCI BIOS. This sorting is done to get a device order compatible with older kernels. - biosirq [IA-32] Use PCI BIOS calls to get the interrupt + biosirq [X86-32] Use PCI BIOS calls to get the interrupt routing table. These calls are known to be buggy on several machines and they hang the machine when used, but on other computers it's the only @@ -1300,32 +1290,32 @@ and is between 256 and 4096 characters. It is defined in the file this option if the kernel is unable to allocate IRQs or discover secondary PCI buses on your motherboard. - rom [IA-32] Assign address space to expansion ROMs. + rom [X86-32] Assign address space to expansion ROMs. Use with caution as certain devices share address decoders between ROMs and other resources. - irqmask=0xMMMM [IA-32] Set a bit mask of IRQs allowed to be + irqmask=0xMMMM [X86-32] Set a bit mask of IRQs allowed to be assigned automatically to PCI devices. You can make the kernel exclude IRQs of your ISA cards this way. - pirqaddr=0xAAAAA [IA-32] Specify the physical address + pirqaddr=0xAAAAA [X86-32] Specify the physical address of the PIRQ table (normally generated by the BIOS) if it is outside the F0000h-100000h range. - lastbus=N [IA-32] Scan all buses thru bus #N. Can be + lastbus=N [X86-32] Scan all buses thru bus #N. Can be useful if the kernel is unable to find your secondary buses and you want to tell it explicitly which ones they are. - assign-busses [IA-32] Always assign all PCI bus + assign-busses [X86-32] Always assign all PCI bus numbers ourselves, overriding whatever the firmware may have done. - usepirqmask [IA-32] Honor the possible IRQ mask stored + usepirqmask [X86-32] Honor the possible IRQ mask stored in the BIOS $PIR table. This is needed on some systems with broken BIOSes, notably some HP Pavilion N5400 and Omnibook XE3 notebooks. This will have no effect if ACPI IRQ routing is enabled. - noacpi [IA-32] Do not use ACPI for IRQ routing + noacpi [X86-32] Do not use ACPI for IRQ routing or for PCI scanning. routeirq Do IRQ routing for all PCI devices. This is normally done in pci_enable_device(), @@ -1474,13 +1464,13 @@ and is between 256 and 4096 characters. It is defined in the file Run specified binary instead of /init from the ramdisk, used for early userspace startup. See initrd. - reboot= [BUGS=IA-32,BUGS=ARM,BUGS=IA-64] Rebooting mode + reboot= [BUGS=X86-32,BUGS=ARM,BUGS=IA-64] Rebooting mode Format: [,[,...]] See arch/*/kernel/reboot.c or arch/*/kernel/process.c reserve= [KNL,BUGS] Force the kernel to ignore some iomem area - reservetop= [IA-32] + reservetop= [X86-32] Format: nn[KMG] Reserves a hole at the top of the kernel virtual address space. @@ -1571,7 +1561,7 @@ and is between 256 and 4096 characters. It is defined in the file Value can be changed at runtime via /selinux/compat_net. - serialnumber [BUGS=IA-32] + serialnumber [BUGS=X86-32] sg_def_reserved_size= [SCSI] @@ -1624,7 +1614,7 @@ and is between 256 and 4096 characters. It is defined in the file smart2= [HW] Format: [,[,...,]] - smp-alt-once [IA-32,SMP] On a hotplug CPU system, only + smp-alt-once [X86-32,SMP] On a hotplug CPU system, only attempt to substitute SMP alternatives once at boot. smsc-ircc2.nopnp [HW] Don't use PNP to discover SMC devices @@ -1889,7 +1879,7 @@ and is between 256 and 4096 characters. It is defined in the file usbhid.mousepoll= [USBHID] The interval which mice are to be polled at. - vdso= [IA-32,SH,x86-64] + vdso= [X86-32,SH,x86-64] vdso=2: enable compat VDSO (default with COMPAT_VDSO) vdso=1: enable VDSO (default) vdso=0: disable VDSO mapping @@ -1900,7 +1890,7 @@ and is between 256 and 4096 characters. It is defined in the file video= [FB] Frame buffer configuration See Documentation/fb/modedb.txt. - vga= [BOOT,IA-32] Select a particular video mode + vga= [BOOT,X86-32] Select a particular video mode See Documentation/i386/boot.txt and Documentation/svga.txt. Use vga=ask for menu. diff --git a/trunk/Documentation/keys.txt b/trunk/Documentation/keys.txt index 81d9aa097298..947d57d53453 100644 --- a/trunk/Documentation/keys.txt +++ b/trunk/Documentation/keys.txt @@ -859,9 +859,8 @@ payload contents" for more information. void unregister_key_type(struct key_type *type); -Under some circumstances, it may be desirable to desirable to deal with a -bundle of keys. The facility provides access to the keyring type for managing -such a bundle: +Under some circumstances, it may be desirable to deal with a bundle of keys. +The facility provides access to the keyring type for managing such a bundle: struct key_type key_type_keyring; diff --git a/trunk/Documentation/kobject.txt b/trunk/Documentation/kobject.txt index e44855513b3d..8ee49ee7c963 100644 --- a/trunk/Documentation/kobject.txt +++ b/trunk/Documentation/kobject.txt @@ -27,7 +27,6 @@ in detail, and briefly here: - kobjects a simple object. - kset a set of objects of a certain type. - ktype a set of helpers for objects of a common type. -- subsystem a controlling object for a number of ksets. The kobject infrastructure maintains a close relationship with the @@ -54,13 +53,15 @@ embedded in larger data structures and replace fields they duplicate. 1.2 Definition struct kobject { + const char * k_name; char name[KOBJ_NAME_LEN]; - atomic_t refcount; + struct kref kref; struct list_head entry; struct kobject * parent; struct kset * kset; struct kobj_type * ktype; - struct dentry * dentry; + struct sysfs_dirent * sd; + wait_queue_head_t poll; }; void kobject_init(struct kobject *); @@ -137,8 +138,7 @@ If a kobject does not have a parent when it is registered, its parent becomes its dominant kset. If a kobject does not have a parent nor a dominant kset, its directory -is created at the top-level of the sysfs partition. This should only -happen for kobjects that are embedded in a struct subsystem. +is created at the top-level of the sysfs partition. @@ -150,10 +150,10 @@ A kset is a set of kobjects that are embedded in the same type. struct kset { - struct subsystem * subsys; struct kobj_type * ktype; struct list_head list; struct kobject kobj; + struct kset_uevent_ops * uevent_ops; }; @@ -169,8 +169,7 @@ struct kobject * kset_find_obj(struct kset *, char *); The type that the kobjects are embedded in is described by the ktype -pointer. The subsystem that the kobject belongs to is pointed to by the -subsys pointer. +pointer. A kset contains a kobject itself, meaning that it may be registered in the kobject hierarchy and exported via sysfs. More importantly, the @@ -209,6 +208,58 @@ the hierarchy. kset_find_obj() may be used to locate a kobject with a particular name. The kobject, if found, is returned. +There are also some helper functions which names point to the formerly +existing "struct subsystem", whose functions have been taken over by +ksets. + + +decl_subsys(name,type,uevent_ops) + +Declares a kset named '_subsys' of type with +uevent_ops . For example, + +decl_subsys(devices, &ktype_device, &device_uevent_ops); + +is equivalent to doing: + +struct kset devices_subsys = { + .kobj = { + .name = "devices", + }, + .ktype = &ktype_devices, + .uevent_ops = &device_uevent_ops, +}; + + +The objects that are registered with a subsystem that use the +subsystem's default list must have their kset ptr set properly. These +objects may have embedded kobjects or ksets. The +following helpers make setting the kset easier: + + +kobj_set_kset_s(obj,subsys) + +- Assumes that obj->kobj exists, and is a struct kobject. +- Sets the kset of that kobject to the kset . + + +kset_set_kset_s(obj,subsys) + +- Assumes that obj->kset exists, and is a struct kset. +- Sets the kset of the embedded kobject to the kset . + +subsys_set_kset(obj,subsys) + +- Assumes obj->subsys exists, and is a struct subsystem. +- Sets obj->subsys.kset.kobj.kset to the subsystem's embedded kset. + +void subsystem_init(struct kset *s); +int subsystem_register(struct kset *s); +void subsystem_unregister(struct kset *s); +struct kset *subsys_get(struct kset *s); +void kset_put(struct kset *s); + +These are just wrappers around the respective kset_* functions. 2.3 sysfs @@ -254,114 +305,3 @@ Instances of struct kobj_type are not registered; only referenced by the kset. A kobj_type may be referenced by an arbitrary number of ksets, as there may be disparate sets of identical objects. - - -4. subsystems - -4.1 Description - -A subsystem represents a significant entity of code that maintains an -arbitrary number of sets of objects of various types. Since the number -of ksets and the type of objects they contain are variable, a -generic representation of a subsystem is minimal. - - -struct subsystem { - struct kset kset; - struct rw_semaphore rwsem; -}; - -int subsystem_register(struct subsystem *); -void subsystem_unregister(struct subsystem *); - -struct subsystem * subsys_get(struct subsystem * s); -void subsys_put(struct subsystem * s); - - -A subsystem contains an embedded kset so: - -- It can be represented in the object hierarchy via the kset's - embedded kobject. - -- It can maintain a default list of objects of one type. - -Additional ksets may attach to the subsystem simply by referencing the -subsystem before they are registered. (This one-way reference means -that there is no way to determine the ksets that are attached to the -subsystem.) - -All ksets that are attached to a subsystem share the subsystem's R/W -semaphore. - - -4.2 subsystem Programming Interface. - -The subsystem programming interface is simple and does not offer the -flexibility that the kset and kobject programming interfaces do. They -may be registered and unregistered, as well as reference counted. Each -call forwards the calls to their embedded ksets (which forward the -calls to their embedded kobjects). - - -4.3 Helpers - -A number of macros are available to make dealing with subsystems and -their embedded objects easier. - - -decl_subsys(name,type) - -Declares a subsystem named '_subsys', with an embedded kset of -type . For example, - -decl_subsys(devices,&ktype_devices); - -is equivalent to doing: - -struct subsystem device_subsys = { - .kset = { - .kobj = { - .name = "devices", - }, - .ktype = &ktype_devices, - } -}; - - -The objects that are registered with a subsystem that use the -subsystem's default list must have their kset ptr set properly. These -objects may have embedded kobjects, ksets, or other subsystems. The -following helpers make setting the kset easier: - - -kobj_set_kset_s(obj,subsys) - -- Assumes that obj->kobj exists, and is a struct kobject. -- Sets the kset of that kobject to the subsystem's embedded kset. - - -kset_set_kset_s(obj,subsys) - -- Assumes that obj->kset exists, and is a struct kset. -- Sets the kset of the embedded kobject to the subsystem's - embedded kset. - -subsys_set_kset(obj,subsys) - -- Assumes obj->subsys exists, and is a struct subsystem. -- Sets obj->subsys.kset.kobj.kset to the subsystem's embedded kset. - - -4.4 sysfs - -subsystems are represented in sysfs via their embedded kobjects. They -follow the same rules as previously mentioned with no exceptions. They -typically receive a top-level directory in sysfs, except when their -embedded kobject is part of another kset, or the parent of the -embedded kobject is explicitly set. - -Note that the subsystem's embedded kset must be 'attached' to the -subsystem itself in order to use its rwsem. This is done after -kset_add() has been called. (Not before, because kset_add() uses its -subsystem for a default parent if it doesn't already have one). - diff --git a/trunk/Documentation/spi/spidev_test.c b/trunk/Documentation/spi/spidev_test.c new file mode 100644 index 000000000000..218e86215297 --- /dev/null +++ b/trunk/Documentation/spi/spidev_test.c @@ -0,0 +1,202 @@ +/* + * SPI testing utility (using spidev driver) + * + * Copyright (c) 2007 MontaVista Software, Inc. + * Copyright (c) 2007 Anton Vorontsov + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License. + * + * Cross-compile with cross-gcc -I/path/to/cross-kernel/include + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) + +static void pabort(const char *s) +{ + perror(s); + abort(); +} + +static char *device = "/dev/spidev1.1"; +static uint8_t mode; +static uint8_t bits = 8; +static uint32_t speed = 500000; +static uint16_t delay; + +static void transfer(int fd) +{ + int ret; + uint8_t tx[] = { + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0x40, 0x00, 0x00, 0x00, 0x00, 0x95, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xDE, 0xAD, 0xBE, 0xEF, 0xBA, 0xAD, + 0xF0, 0x0D, + }; + uint8_t rx[ARRAY_SIZE(tx)] = {0, }; + struct spi_ioc_transfer tr = { + .tx_buf = (unsigned long)tx, + .rx_buf = (unsigned long)rx, + .len = ARRAY_SIZE(tx), + .delay_usecs = delay, + .speed_hz = speed, + .bits_per_word = bits, + }; + + ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr); + if (ret == 1) + pabort("can't send spi message"); + + for (ret = 0; ret < ARRAY_SIZE(tx); ret++) { + if (!(ret % 6)) + puts(""); + printf("%.2X ", rx[ret]); + } + puts(""); +} + +void print_usage(char *prog) +{ + printf("Usage: %s [-DsbdlHOLC3]\n", prog); + puts(" -D --device device to use (default /dev/spidev1.1)\n" + " -s --speed max speed (Hz)\n" + " -d --delay delay (usec)\n" + " -b --bpw bits per word \n" + " -l --loop loopback\n" + " -H --cpha clock phase\n" + " -O --cpol clock polarity\n" + " -L --lsb least significant bit first\n" + " -C --cs-high chip select active high\n" + " -3 --3wire SI/SO signals shared\n"); + exit(1); +} + +void parse_opts(int argc, char *argv[]) +{ + while (1) { + static struct option lopts[] = { + { "device", 1, 0, 'D' }, + { "speed", 1, 0, 's' }, + { "delay", 1, 0, 'd' }, + { "bpw", 1, 0, 'b' }, + { "loop", 0, 0, 'l' }, + { "cpha", 0, 0, 'H' }, + { "cpol", 0, 0, 'O' }, + { "lsb", 0, 0, 'L' }, + { "cs-high", 0, 0, 'C' }, + { "3wire", 0, 0, '3' }, + { NULL, 0, 0, 0 }, + }; + int c; + + c = getopt_long(argc, argv, "D:s:d:b:lHOLC3", lopts, NULL); + + if (c == -1) + break; + + switch (c) { + case 'D': + device = optarg; + break; + case 's': + speed = atoi(optarg); + break; + case 'd': + delay = atoi(optarg); + break; + case 'b': + bits = atoi(optarg); + break; + case 'l': + mode |= SPI_LOOP; + break; + case 'H': + mode |= SPI_CPHA; + break; + case 'O': + mode |= SPI_CPOL; + break; + case 'L': + mode |= SPI_LSB_FIRST; + break; + case 'C': + mode |= SPI_CS_HIGH; + break; + case '3': + mode |= SPI_3WIRE; + break; + default: + print_usage(argv[0]); + break; + } + } +} + +int main(int argc, char *argv[]) +{ + int ret = 0; + int fd; + + parse_opts(argc, argv); + + fd = open(device, O_RDWR); + if (fd < 0) + pabort("can't open device"); + + /* + * spi mode + */ + ret = ioctl(fd, SPI_IOC_WR_MODE, &mode); + if (ret == -1) + pabort("can't set spi mode"); + + ret = ioctl(fd, SPI_IOC_RD_MODE, &mode); + if (ret == -1) + pabort("can't get spi mode"); + + /* + * bits per word + */ + ret = ioctl(fd, SPI_IOC_WR_BITS_PER_WORD, &bits); + if (ret == -1) + pabort("can't set bits per word"); + + ret = ioctl(fd, SPI_IOC_RD_BITS_PER_WORD, &bits); + if (ret == -1) + pabort("can't get bits per word"); + + /* + * max speed hz + */ + ret = ioctl(fd, SPI_IOC_WR_MAX_SPEED_HZ, &speed); + if (ret == -1) + pabort("can't set max speed hz"); + + ret = ioctl(fd, SPI_IOC_RD_MAX_SPEED_HZ, &speed); + if (ret == -1) + pabort("can't get max speed hz"); + + printf("spi mode: %d\n", mode); + printf("bits per word: %d\n", bits); + printf("max speed: %d Hz (%d KHz)\n", speed, speed/1000); + + transfer(fd); + + close(fd); + + return ret; +} diff --git a/trunk/Documentation/stable_api_nonsense.txt b/trunk/Documentation/stable_api_nonsense.txt index a2afca3b2bab..847b342b7b20 100644 --- a/trunk/Documentation/stable_api_nonsense.txt +++ b/trunk/Documentation/stable_api_nonsense.txt @@ -10,7 +10,7 @@ kernel to userspace interfaces. The kernel to userspace interface is the one that application programs use, the syscall interface. That interface is _very_ stable over time, and will not break. I have old programs that were built on a pre 0.9something kernel that still work -just fine on the latest 2.6 kernel release. This interface is the one +just fine on the latest 2.6 kernel release. That interface is the one that users and application programmers can count on being stable. diff --git a/trunk/Documentation/sysfs-rules.txt b/trunk/Documentation/sysfs-rules.txt index 42861bb0bc9b..80ef562160bb 100644 --- a/trunk/Documentation/sysfs-rules.txt +++ b/trunk/Documentation/sysfs-rules.txt @@ -1,19 +1,18 @@ Rules on how to access information in the Linux kernel sysfs -The kernel exported sysfs exports internal kernel implementation-details +The kernel-exported sysfs exports internal kernel implementation details and depends on internal kernel structures and layout. It is agreed upon by the kernel developers that the Linux kernel does not provide a stable internal API. As sysfs is a direct export of kernel internal -structures, the sysfs interface can not provide a stable interface eighter, +structures, the sysfs interface cannot provide a stable interface either; it may always change along with internal kernel changes. To minimize the risk of breaking users of sysfs, which are in most cases low-level userspace applications, with a new kernel release, the users -of sysfs must follow some rules to use an as abstract-as-possible way to +of sysfs must follow some rules to use an as-abstract-as-possible way to access this filesystem. The current udev and HAL programs already implement this and users are encouraged to plug, if possible, into the -abstractions these programs provide instead of accessing sysfs -directly. +abstractions these programs provide instead of accessing sysfs directly. But if you really do want or need to access sysfs directly, please follow the following rules and then your programs should work with future @@ -25,22 +24,22 @@ versions of the sysfs interface. implementation details in its own API. Therefore it is not better than reading directories and opening the files yourself. Also, it is not actively maintained, in the sense of reflecting the - current kernel-development. The goal of providing a stable interface - to sysfs has failed, it causes more problems, than it solves. It + current kernel development. The goal of providing a stable interface + to sysfs has failed; it causes more problems than it solves. It violates many of the rules in this document. - sysfs is always at /sys Parsing /proc/mounts is a waste of time. Other mount points are a system configuration bug you should not try to solve. For test cases, possibly support a SYSFS_PATH environment variable to overwrite the - applications behavior, but never try to search for sysfs. Never try + application's behavior, but never try to search for sysfs. Never try to mount it, if you are not an early boot script. - devices are only "devices" There is no such thing like class-, bus-, physical devices, interfaces, and such that you can rely on in userspace. Everything is just simply a "device". Class-, bus-, physical, ... types are just - kernel implementation details, which should not be expected by + kernel implementation details which should not be expected by applications that look for devices in sysfs. The properties of a device are: @@ -48,11 +47,11 @@ versions of the sysfs interface. - identical to the DEVPATH value in the event sent from the kernel at device creation and removal - the unique key to the device at that point in time - - the kernels path to the device-directory without the leading + - the kernel's path to the device directory without the leading /sys, and always starting with with a slash - all elements of a devpath must be real directories. Symlinks pointing to /sys/devices must always be resolved to their real - target, and the target path must be used to access the device. + target and the target path must be used to access the device. That way the devpath to the device matches the devpath of the kernel used at event time. - using or exposing symlink values as elements in a devpath string @@ -73,17 +72,17 @@ versions of the sysfs interface. link - it is retrieved by reading the "driver"-link and using only the last element of the target path - - devices which do not have "driver"-link, just do not have a - driver; copying the driver value in a child device context, is a + - devices which do not have "driver"-link just do not have a + driver; copying the driver value in a child device context is a bug in the application o attributes - - the files in the device directory or files below a subdirectories + - the files in the device directory or files below subdirectories of the same device directory - accessing attributes reached by a symlink pointing to another device, like the "device"-link, is a bug in the application - Everything else is just a kernel driver-core implementation detail, + Everything else is just a kernel driver-core implementation detail that should not be assumed to be stable across kernel releases. - Properties of parent devices never belong into a child device. @@ -91,25 +90,25 @@ versions of the sysfs interface. context properties. If the device 'eth0' or 'sda' does not have a "driver"-link, then this device does not have a driver. Its value is empty. Never copy any property of the parent-device into a child-device. Parent - device-properties may change dynamically without any notice to the + device properties may change dynamically without any notice to the child device. -- Hierarchy in a single device-tree +- Hierarchy in a single device tree There is only one valid place in sysfs where hierarchy can be examined and this is below: /sys/devices. - It is planned, that all device directories will end up in the tree + It is planned that all device directories will end up in the tree below this directory. - Classification by subsystem There are currently three places for classification of devices: /sys/block, /sys/class and /sys/bus. It is planned that these will - not contain any device-directories themselves, but only flat lists of + not contain any device directories themselves, but only flat lists of symlinks pointing to the unified /sys/devices tree. All three places have completely different rules on how to access device information. It is planned to merge all three - classification-directories into one place at /sys/subsystem, - following the layout of the bus-directories. All buses and - classes, including the converted block-subsystem, will show up + classification directories into one place at /sys/subsystem, + following the layout of the bus directories. All buses and + classes, including the converted block subsystem, will show up there. The devices belonging to a subsystem will create a symlink in the "devices" directory at /sys/subsystem//devices. @@ -121,38 +120,38 @@ versions of the sysfs interface. subsystem name. Assuming /sys/class/ and /sys/bus/, or - /sys/block and /sys/class/block are not interchangeable, is a bug in + /sys/block and /sys/class/block are not interchangeable is a bug in the application. - Block - The converted block-subsystem at /sys/class/block, or + The converted block subsystem at /sys/class/block or /sys/subsystem/block will contain the links for disks and partitions - at the same level, never in a hierarchy. Assuming the block-subsytem to - contain only disks and not partition-devices in the same flat list is + at the same level, never in a hierarchy. Assuming the block subsytem to + contain only disks and not partition devices in the same flat list is a bug in the application. - "device"-link and :-links Never depend on the "device"-link. The "device"-link is a workaround - for the old layout, where class-devices are not created in - /sys/devices/ like the bus-devices. If the link-resolving of a - device-directory does not end in /sys/devices/, you can use the + for the old layout, where class devices are not created in + /sys/devices/ like the bus devices. If the link-resolving of a + device directory does not end in /sys/devices/, you can use the "device"-link to find the parent devices in /sys/devices/. That is the - single valid use of the "device"-link, it must never appear in any + single valid use of the "device"-link; it must never appear in any path as an element. Assuming the existence of the "device"-link for a device in /sys/devices/ is a bug in the application. Accessing /sys/class/net/eth0/device is a bug in the application. Never depend on the class-specific links back to the /sys/class directory. These links are also a workaround for the design mistake - that class-devices are not created in /sys/devices. If a device + that class devices are not created in /sys/devices. If a device directory does not contain directories for child devices, these links may be used to find the child devices in /sys/class. That is the single - valid use of these links, they must never appear in any path as an + valid use of these links; they must never appear in any path as an element. Assuming the existence of these links for devices which are - real child device directories in the /sys/devices tree, is a bug in + real child device directories in the /sys/devices tree is a bug in the application. - It is planned to remove all these links when when all class-device + It is planned to remove all these links when all class device directories live in /sys/devices. - Position of devices along device chain can change. @@ -161,6 +160,5 @@ versions of the sysfs interface. the chain. You must always request the parent device you are looking for by its subsystem value. You need to walk up the chain until you find the device that matches the expected subsystem. Depending on a specific - position of a parent device, or exposing relative paths, using "../" to - access the chain of parents, is a bug in the application. - + position of a parent device or exposing relative paths using "../" to + access the chain of parents is a bug in the application. diff --git a/trunk/MAINTAINERS b/trunk/MAINTAINERS index babd00b0c65c..c29289760741 100644 --- a/trunk/MAINTAINERS +++ b/trunk/MAINTAINERS @@ -387,21 +387,6 @@ P: Jaya Kumar M: jayalk@intworks.biz S: Maintained -ARM26 ARCHITECTURE -P: Ian Molton -M: spyro@f2s.com -S: Maintained - -ARM26/ARCHIMEDES -P: Ian Molton -M: spyro@f2s.com -S: Maintained - -ARM26/A5000 -P: John Appleby -M: john@dnsworld.co.uk -S: Maintained - ARM MFM AND FLOPPY DRIVERS P: Ian Molton M: spyro@f2s.com @@ -2171,6 +2156,8 @@ W: http://www.kerneljanitors.org/ S: Maintained KERNEL NFSD +P: J. Bruce Fields +M: bfields@fieldses.org P: Neil Brown M: neilb@suse.de L: nfs@lists.sourceforge.net @@ -3674,11 +3661,9 @@ W: http://www.auk.cx/tms380tr/ S: Maintained TULIP NETWORK DRIVER -P: Valerie Henson -M: val@nmt.edu L: tulip-users@lists.sourceforge.net W: http://sourceforge.net/projects/tulip/ -S: Maintained +S: Orphan TUN/TAP driver P: Maxim Krasnyansky diff --git a/trunk/arch/alpha/boot/Makefile b/trunk/arch/alpha/boot/Makefile index e1ae14cd2b4e..cd143887380a 100644 --- a/trunk/arch/alpha/boot/Makefile +++ b/trunk/arch/alpha/boot/Makefile @@ -104,7 +104,7 @@ OBJ_bootlx := $(obj)/head.o $(obj)/main.o OBJ_bootph := $(obj)/head.o $(obj)/bootp.o OBJ_bootpzh := $(obj)/head.o $(obj)/bootpz.o $(obj)/misc.o -$(obj)/bootloader: $(obj)/bootloader.lds $(OBJ_bootlx) FORCE +$(obj)/bootloader: $(obj)/bootloader.lds $(OBJ_bootlx) $(LIBS_Y) FORCE $(call if_changed,ld) $(obj)/bootpheader: $(obj)/bootloader.lds $(OBJ_bootph) $(LIBS_Y) FORCE diff --git a/trunk/arch/alpha/boot/main.c b/trunk/arch/alpha/boot/main.c index 90ed55b662a8..89f3be071ae5 100644 --- a/trunk/arch/alpha/boot/main.c +++ b/trunk/arch/alpha/boot/main.c @@ -132,7 +132,7 @@ static inline long load(long dev, unsigned long addr, unsigned long count) if (result) srm_printk("Boot file specification (%s) not implemented\n", bootfile); - return callback_read(dev, count, addr, boot_size/512 + 1); + return callback_read(dev, count, (void *)addr, boot_size/512 + 1); } /* diff --git a/trunk/arch/alpha/boot/tools/mkbb.c b/trunk/arch/alpha/boot/tools/mkbb.c index 632a7fd6d7dc..1185778e6a1e 100644 --- a/trunk/arch/alpha/boot/tools/mkbb.c +++ b/trunk/arch/alpha/boot/tools/mkbb.c @@ -11,6 +11,7 @@ #include #include +#include #include /* Minimal definition of disklabel, so we don't have to include @@ -114,7 +115,7 @@ int main(int argc, char ** argv) nread = read(fd, &bootloader_image, sizeof(bootblock)); if(nread != sizeof(bootblock)) { perror("lxboot read"); - fprintf(stderr, "expected %d, got %d\n", sizeof(bootblock), nread); + fprintf(stderr, "expected %zd, got %d\n", sizeof(bootblock), nread); exit(0); } @@ -122,7 +123,7 @@ int main(int argc, char ** argv) nread = read(dev, &bootblock_from_disk, sizeof(bootblock)); if(nread != sizeof(bootblock)) { perror("bootblock read"); - fprintf(stderr, "expected %d, got %d\n", sizeof(bootblock), nread); + fprintf(stderr, "expected %zd, got %d\n", sizeof(bootblock), nread); exit(0); } diff --git a/trunk/arch/alpha/boot/tools/objstrip.c b/trunk/arch/alpha/boot/tools/objstrip.c index 96154e768a20..ef1838230291 100644 --- a/trunk/arch/alpha/boot/tools/objstrip.c +++ b/trunk/arch/alpha/boot/tools/objstrip.c @@ -144,7 +144,7 @@ main (int argc, char *argv[]) #ifdef __ELF__ elf = (struct elfhdr *) buf; - if (elf->e_ident[0] == 0x7f && strncmp(elf->e_ident + 1, "ELF", 3) == 0) { + if (elf->e_ident[0] == 0x7f && strncmp((char *)elf->e_ident + 1, "ELF", 3) == 0) { if (elf->e_type != ET_EXEC) { fprintf(stderr, "%s: %s is not an ELF executable\n", prog_name, inname); diff --git a/trunk/arch/alpha/mm/init.c b/trunk/arch/alpha/mm/init.c index 550f4907d613..5e6da47779a4 100644 --- a/trunk/arch/alpha/mm/init.c +++ b/trunk/arch/alpha/mm/init.c @@ -267,8 +267,7 @@ callback_init(void * kernel_end) /* * paging_init() sets up the memory map. */ -void -paging_init(void) +void __init paging_init(void) { unsigned long zones_size[MAX_NR_ZONES] = {0, }; unsigned long dma_pfn, high_pfn; diff --git a/trunk/arch/arm/kernel/entry-common.S b/trunk/arch/arm/kernel/entry-common.S index c589dc3ecd1a..33e6cc2ffd3b 100644 --- a/trunk/arch/arm/kernel/entry-common.S +++ b/trunk/arch/arm/kernel/entry-common.S @@ -46,7 +46,7 @@ fast_work_pending: work_pending: tst r1, #_TIF_NEED_RESCHED bne work_resched - tst r1, #_TIF_NOTIFY_RESUME | _TIF_SIGPENDING + tst r1, #_TIF_SIGPENDING beq no_work_pending mov r0, sp @ 'regs' mov r2, why @ 'syscall' diff --git a/trunk/arch/arm/nwfpe/Makefile b/trunk/arch/arm/nwfpe/Makefile index ed7b26bf73f5..b29178c0414e 100644 --- a/trunk/arch/arm/nwfpe/Makefile +++ b/trunk/arch/arm/nwfpe/Makefile @@ -9,5 +9,4 @@ nwfpe-y += fpa11.o fpa11_cpdo.o fpa11_cpdt.o \ softfloat.o single_cpdo.o double_cpdo.o nwfpe-$(CONFIG_FPE_NWFPE_XP) += extended_cpdo.o -nwfpe-$(CONFIG_CPU_26) += entry26.o nwfpe-$(CONFIG_CPU_32) += entry.o diff --git a/trunk/arch/arm/nwfpe/entry26.S b/trunk/arch/arm/nwfpe/entry26.S deleted file mode 100644 index 3e6fb5d21d64..000000000000 --- a/trunk/arch/arm/nwfpe/entry26.S +++ /dev/null @@ -1,112 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.COM, 1998 - (c) Philip Blundell 1998-1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include - -/* This is the kernel's entry point into the floating point emulator. -It is called from the kernel with code similar to this: - - mov fp, #0 - teqp pc, #PSR_I_BIT | SVC_MODE - ldr r4, .LC2 - ldr pc, [r4] @ Call FP module USR entry point - -The kernel expects the emulator to return via one of two possible -points of return it passes to the emulator. The emulator, if -successful in its emulation, jumps to ret_from_exception and the -kernel takes care of returning control from the trap to the user code. -If the emulator is unable to emulate the instruction, it returns to -fpundefinstr and the kernel halts the user program with a core dump. - -This routine does four things: - -1) It saves SP into a variable called userRegisters. The kernel has -created a struct pt_regs on the stack and saved the user registers -into it. See /usr/include/asm/proc/ptrace.h for details. The -emulator code uses userRegisters as the base of an array of words from -which the contents of the registers can be extracted. - -2) It locates the FP emulator work area within the TSS structure and -points `fpa11' to it. - -3) It calls EmulateAll to emulate a floating point instruction. -EmulateAll returns 1 if the emulation was successful, or 0 if not. - -4) If an instruction has been emulated successfully, it looks ahead at -the next instruction. If it is a floating point instruction, it -executes the instruction, without returning to user space. In this -way it repeatedly looks ahead and executes floating point instructions -until it encounters a non floating point instruction, at which time it -returns via _fpreturn. - -This is done to reduce the effect of the trap overhead on each -floating point instructions. GCC attempts to group floating point -instructions to allow the emulator to spread the cost of the trap over -several floating point instructions. */ - - .globl nwfpe_enter -nwfpe_enter: - mov sl, sp - ldr r5, [sp, #60] @ get contents of PC - bic r5, r5, #0xfc000003 - ldr r0, [r5, #-4] @ get actual instruction into r0 - bl EmulateAll @ emulate the instruction -1: cmp r0, #0 @ was emulation successful - beq fpundefinstr @ no, return failure - -next: -.Lx1: ldrt r6, [r5], #4 @ get the next instruction and - @ increment PC - - and r2, r6, #0x0F000000 @ test for FP insns - teq r2, #0x0C000000 - teqne r2, #0x0D000000 - teqne r2, #0x0E000000 - bne ret_from_exception @ return ok if not a fp insn - - ldr r9, [sp, #60] @ get new condition codes - and r9, r9, #0xfc000003 - orr r7, r5, r9 - str r7, [sp, #60] @ update PC copy in regs - - mov r0, r6 @ save a copy - mov r1, r9 @ fetch the condition codes - bl checkCondition @ check the condition - cmp r0, #0 @ r0 = 0 ==> condition failed - - @ if condition code failed to match, next insn - beq next @ get the next instruction; - - mov r0, r6 @ prepare for EmulateAll() - adr lr, 1b - orr lr, lr, #3 - b EmulateAll @ if r0 != 0, goto EmulateAll - -.Lret: b ret_from_exception @ let the user eat segfaults - - @ We need to be prepared for the instruction at .Lx1 to fault. - @ Emit the appropriate exception gunk to fix things up. - .section __ex_table,"a" - .align 3 - .long .Lx1 - ldr lr, [lr, $(.Lret - .Lx1)/4] - .previous diff --git a/trunk/arch/arm26/ACKNOWLEDGEMENTS b/trunk/arch/arm26/ACKNOWLEDGEMENTS deleted file mode 100644 index 0a17a45110e7..000000000000 --- a/trunk/arch/arm26/ACKNOWLEDGEMENTS +++ /dev/null @@ -1,29 +0,0 @@ -The work in this architecture (ARM26) is that of a great many people. - -This is what has happened: - -I [Ian Molton] have been trying to repair the ARM26 architecture support, but it has become an impossible task whilst it is still merged with the ARM32 (arch/arm) code. The ARM26 code is too different to be sensible to keep with the ARM32 code now, and Russell King really doesnt have the time to maintain the ARM26 code. Add to that that most ARM32 developers dont know about or care about ARM26 when writing patches, and you have a reall mess. - -As a result, I've split it off into a new architecture of its own. I've named it arm26 since these CPUs have only a 26 bit address space, unlike the other ARMs. - -The upheaval in moving around so many source files and chopping out vasty ammounts of cruft was enormous, and the copyright of many files is sometimes unclear. Because of this, I am writing this, in order that no-one is left out / misaccredited / blamed for any of the code. - -People I KNOW have made major contributions to the code: - -David Alan Gilbert (former maintainer of ARM26 bits) -Philip Blundell -Russell King -Keith Owens - -also thanks to Nicholas Pitre for hints, and for the basis or our XIP support. - -Currently maintaing the code are - -Ian Molton (Maintainer / Archimedes) -John Appleby (kernel / A5K) - -If anyone has a problem with attributions in header files / source files, please do contact me to straighten things out. - -Ian Molton (aka spyro) - ARM26 maintainer -spyro@f2s.com - diff --git a/trunk/arch/arm26/Kconfig b/trunk/arch/arm26/Kconfig deleted file mode 100644 index 9044f33299f7..000000000000 --- a/trunk/arch/arm26/Kconfig +++ /dev/null @@ -1,253 +0,0 @@ -# -# For a description of the syntax of this configuration file, -# see Documentation/kbuild/kconfig-language.txt. -# - -mainmenu "Linux Kernel Configuration" - -config ARM - bool - default y - -config ARM26 - bool - default y - -config MMU - bool - default y - -config NO_DMA - def_bool y - -config ARCH_ACORN - bool - default y - -config CPU_26 - bool - default y - -config FIQ - bool - default y - -# 9 = 512 pages 8 = 256 pages 7 = 128 pages -config FORCE_MAX_ZONEORDER - int - default 9 - -config RWSEM_GENERIC_SPINLOCK - bool - default y - -config RWSEM_XCHGADD_ALGORITHM - bool - -config ARCH_HAS_ILOG2_U32 - bool - default n - -config ARCH_HAS_ILOG2_U64 - bool - default n - -config GENERIC_HWEIGHT - bool - default y - -config GENERIC_CALIBRATE_DELAY - bool - default y - -config ZONE_DMA - bool - default y - -config GENERIC_ISA_DMA - bool - -config ARCH_MAY_HAVE_PC_FDC - bool - -source "init/Kconfig" - - -menu "System Type" - -choice - prompt "Archimedes/A5000 Implementations" - -config ARCH_ARC - bool "Archimedes" - help - Say Y to support the Acorn Archimedes. - - The Acorn Archimedes was an personal computer based on an 8MHz ARM2 - processor, released in 1987. It supported up to 16MB of RAM in - later models and floppy, harddisc, ethernet etc. - -config ARCH_A5K - bool "A5000" - select ARCH_MAY_HAVE_PC_FDC - help - Say Y here to support the Acorn A5000. - - Linux can support the - internal IDE disk and CD-ROM interface, serial and parallel port, - and the floppy drive. Note that on some A5000s the floppy is - plugged into the wrong socket on the motherboard. - -config PAGESIZE_16 - bool "2MB physical memory (broken)" - help - Say Y here if your Archimedes or A5000 system has only 2MB of - memory, otherwise say N. The resulting kernel will not run on a - machine with 4MB of memory. -endchoice -endmenu - -config ISA_DMA_API - bool - default y - -menu "General setup" - -# Compressed boot loader in ROM. Yes, we really want to ask about -# TEXT and BSS so we preserve their values in the config files. -config ZBOOT_ROM - bool "Compressed boot loader in ROM/flash" - help - Say Y here if you intend to execute your compressed kernel image (zImage) - directly from ROM or flash. If unsure, say N. - -config ZBOOT_ROM_TEXT - depends on ZBOOT_ROM - hex "Compressed ROM boot loader base address" - default "0" - help - The base address for zImage. Unless you have special requirements, you - should not change this value. - -config ZBOOT_ROM_BSS - depends on ZBOOT_ROM - hex "Compressed ROM boot loader BSS address" - default "0" - help - The base address of 64KiB of read/write memory, which must be available - while the decompressor is running. Unless you have special requirements, - you should not change this value. - -config XIP_KERNEL - bool "Execute In Place (XIP) kernel image" - help - Select this option to create a kernel that can be programmed into - the OS ROMs. - -comment "At least one math emulation must be selected" - -config FPE_NWFPE - tristate "NWFPE math emulation" - ---help--- - Say Y to include the NWFPE floating point emulator in the kernel. - This is necessary to run most binaries. Linux does not currently - support floating point hardware so you need to say Y here even if - your machine has an FPA or floating point co-processor module. - - It is also possible to say M to build the emulator as a module - (nwfpe) or indeed to leave it out altogether. However, unless you - know what you are doing this can easily render your machine - unbootable. Saying Y is the safe option. - - You may say N here if you are going to load the Acorn FPEmulator - early in the bootup. - -source "fs/Kconfig.binfmt" - -config PREEMPT - bool "Preemptible Kernel (EXPERIMENTAL)" - depends on CPU_32 && EXPERIMENTAL - help - This option reduces the latency of the kernel when reacting to - real-time or interactive events by allowing a low priority process to - be preempted even if it is in kernel mode executing a system call. - This allows applications to run more reliably even when the system is - under load. - - Say Y here if you are building a kernel for a desktop, embedded - or real-time system. Say N if you are unsure. - -config ARTHUR - tristate "RISC OS personality" - depends on CPU_32 - help - Say Y here to include the kernel code necessary if you want to run - Acorn RISC OS/Arthur binaries under Linux. This code is still very - experimental; if this sounds frightening, say N and sleep in peace. - You can also say M here to compile this support as a module (which - will be called arthur). - -config CMDLINE - string "Default kernel command string" - default "" - help - On some architectures (EBSA110 and CATS), there is currently no way - for the boot loader to pass arguments to the kernel. For these - architectures, you should supply some command-line options at build - time by entering them here. As a minimum, you should specify the - memory size and the root device (e.g., mem=64M root=/dev/nfs). - -source "mm/Kconfig" - -endmenu - -source "net/Kconfig" - -source "drivers/base/Kconfig" - -source "drivers/parport/Kconfig" - -source "drivers/pnp/Kconfig" - -source "drivers/block/Kconfig" - -source "drivers/md/Kconfig" - -source "drivers/net/Kconfig" - -source "drivers/ide/Kconfig" - -source "drivers/scsi/Kconfig" - -source "drivers/isdn/Kconfig" - -# -# input before char - char/joystick depends on it. As does USB. -# -source "drivers/input/Kconfig" - -source "drivers/char/Kconfig" - -source "drivers/media/Kconfig" - -source "fs/Kconfig" - -source "drivers/video/Kconfig" - -if ARCH_ACORN - -source "sound/Kconfig" - -endif - -source "drivers/misc/Kconfig" - -source "drivers/usb/Kconfig" - -source "arch/arm26/Kconfig.debug" - -source "security/Kconfig" - -source "crypto/Kconfig" - -source "lib/Kconfig" diff --git a/trunk/arch/arm26/Kconfig.debug b/trunk/arch/arm26/Kconfig.debug deleted file mode 100644 index 611fc86503fc..000000000000 --- a/trunk/arch/arm26/Kconfig.debug +++ /dev/null @@ -1,50 +0,0 @@ -menu "Kernel hacking" - -source "lib/Kconfig.debug" - -# RMK wants arm kernels compiled with frame pointers so hardwire this to y. -# If you know what you are doing and are willing to live without stack -# traces, you can get a slightly smaller kernel by setting this option to -# n, but then RMK will have to kill you ;). -config FRAME_POINTER - bool - default y - help - If you say N here, the resulting kernel will be slightly smaller and - faster. However, when a problem occurs with the kernel, the - information that is reported is severely limited. Most people - should say Y here. - -config DEBUG_USER - bool "Verbose user fault messages" - help - When a user program crashes due to an exception, the kernel can - print a brief message explaining what the problem was. This is - sometimes helpful for debugging but serves no purpose on a - production system. Most people should say N here. - -config DEBUG_WAITQ - bool "Wait queue debugging" - depends on DEBUG_KERNEL - -config DEBUG_ERRORS - bool "Verbose kernel error messages" - depends on DEBUG_KERNEL - help - This option controls verbose debugging information which can be - printed when the kernel detects an internal error. This debugging - information is useful to kernel hackers when tracking down problems, - but mostly meaningless to other people. It's safe to say Y unless - you are concerned with the code size or don't want to see these - messages. - -# These options are only for real kernel hackers who want to get their hands dirty. -config DEBUG_LL - bool "Kernel low-level debugging functions" - depends on DEBUG_KERNEL - help - Say Y here to include definitions of printascii, printchar, printhex - in the kernel. This is helpful if you are debugging code that - executes before the console is initialized. - -endmenu diff --git a/trunk/arch/arm26/Makefile b/trunk/arch/arm26/Makefile deleted file mode 100644 index fe91eda98a94..000000000000 --- a/trunk/arch/arm26/Makefile +++ /dev/null @@ -1,107 +0,0 @@ -# -# arch/arm26/Makefile -# -# This file is included by the global makefile so that you can add your own -# architecture-specific flags and dependencies. -# -# This file is subject to the terms and conditions of the GNU General Public -# License. See the file "COPYING" in the main directory of this archive -# for more details. -# -# Copyright (C) 1995-2001 by Russell King -# Copyright (c) 2004 Ian Molton - -LDFLAGS_vmlinux :=-p -X -CPPFLAGS_vmlinux.lds = -DTEXTADDR=$(TEXTADDR) -DDATAADDR=$(DATAADDR) -OBJCOPYFLAGS :=-O binary -R .note -R .comment -S -GZFLAGS :=-9 - -ifeq ($(CONFIG_FRAME_POINTER),y) -CFLAGS +=-fno-omit-frame-pointer -mno-sched-prolog -endif - -CFLAGS_BOOT :=-mapcs-26 -mcpu=arm3 -msoft-float -Uarm -CFLAGS +=-mapcs-26 -mcpu=arm3 -msoft-float -Uarm -AFLAGS +=-mapcs-26 -mcpu=arm3 -msoft-float - -ifeq ($(CONFIG_XIP_KERNEL),y) - TEXTADDR := 0x03880000 - DATAADDR := 0x02080000 -else - TEXTADDR := 0x02080000 - DATAADDR := . -endif - -head-y := arch/arm26/kernel/head.o arch/arm26/kernel/init_task.o - -ifeq ($(incdir-y),) -incdir-y := -endif -INCDIR := - -export MACHINE TEXTADDR GZFLAGS CFLAGS_BOOT - -# If we have a machine-specific directory, then include it in the build. -core-y += arch/arm26/kernel/ arch/arm26/mm/ arch/arm26/machine/ -core-$(CONFIG_FPE_NWFPE) += arch/arm26/nwfpe/ - -libs-y += arch/arm26/lib/ - -# Default target when executing plain make -all: zImage - -boot := arch/arm26/boot - -PHONY += maketools FORCE -maketools: FORCE - - -# Convert bzImage to zImage -bzImage: vmlinux - $(Q)$(MAKE) $(build)=$(boot) $(boot)/zImage - -zImage Image bootpImage xipImage: vmlinux - $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ - -zinstall install: vmlinux - $(Q)$(MAKE) $(build)=$(boot) $@ - -# We use MRPROPER_FILES and CLEAN_FILES now -archclean: - $(Q)$(MAKE) $(clean)=$(boot) - -# My testing targets (that short circuit a few dependencies) -zImg:; $(Q)$(MAKE) $(build)=$(boot) $(boot)/zImage -Img:; $(Q)$(MAKE) $(build)=$(boot) $(boot)/Image -bp:; $(Q)$(MAKE) $(build)=$(boot) $(boot)/bootpImage -i:; $(Q)$(MAKE) $(build)=$(boot) install -zi:; $(Q)$(MAKE) $(build)=$(boot) zinstall - -# -# Configuration targets. Use these to select a -# configuration for your architecture -%_config: - @( \ - CFG=$(@:_config=); \ - if [ -f arch/arm26/def-configs/$$CFG ]; then \ - [ -f .config ] && mv -f .config .config.old; \ - cp arch/arm26/def-configs/$$CFG .config; \ - echo "*** Default configuration for $$CFG installed"; \ - echo "*** Next, you may run 'make oldconfig'"; \ - else \ - echo "$$CFG does not exist"; \ - fi; \ - ) - -define archhelp - echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' - echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' - echo ' bootpImage - Combined zImage and initial RAM disk' - echo ' xipImage - eXecute In Place capable image for ROM use (arch/$(ARCH)/boot/xipImage)' - echo ' initrd - Create an initial image' - echo ' install - Install uncompressed kernel' - echo ' zinstall - Install compressed kernel' - echo ' Install using (your) ~/bin/installkernel or' - echo ' (distribution) /sbin/installkernel or' - echo ' install to $$(INSTALL_PATH) and run lilo' -endef diff --git a/trunk/arch/arm26/boot/Makefile b/trunk/arch/arm26/boot/Makefile deleted file mode 100644 index 68acb7b0d47f..000000000000 --- a/trunk/arch/arm26/boot/Makefile +++ /dev/null @@ -1,83 +0,0 @@ -# -# arch/arm26/boot/Makefile -# -# This file is included by the global makefile so that you can add your own -# architecture-specific flags and dependencies. -# -# This file is subject to the terms and conditions of the GNU General Public -# License. See the file "COPYING" in the main directory of this archive -# for more details. -# -# Copyright (C) 1995-2002 Russell King -# - -# Note: the following conditions must always be true: -# ZRELADDR == virt_to_phys(TEXTADDR) -# PARAMS_PHYS must be with 4MB of ZRELADDR -# INITRD_PHYS must be in RAM - - zreladdr-y := 0x02080000 -params_phys-y := 0x0207c000 -initrd_phys-y := 0x02180000 - -ZRELADDR := 0x02080000 -ZTEXTADDR := 0x0207c000 -PARAMS_PHYS := $(params_phys-y) -INITRD_PHYS := 0x02180000 - -# We now have a PIC decompressor implementation. Decompressors running -# from RAM should not define ZTEXTADDR. Decompressors running directly -# from ROM or Flash must define ZTEXTADDR (preferably via the config) -# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK -ifeq ($(CONFIG_ZBOOT_ROM),y) -ZTEXTADDR := $(CONFIG_ZBOOT_ROM_TEXT) -ZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS) -else -ZTEXTADDR := 0 -ZBSSADDR := ALIGN(4) -endif - -export ZTEXTADDR ZBSSADDR ZRELADDR INITRD_PHYS PARAMS_PHYS - -targets := Image zImage bootpImage xipImage - -$(obj)/Image: vmlinux FORCE - $(call if_changed,objcopy) - @echo ' Kernel: $@ is ready' - -$(obj)/zImage: $(obj)/compressed/vmlinux FORCE - $(call if_changed,objcopy) - @echo ' Kernel: $@ is ready' - -$(obj)/compressed/vmlinux: vmlinux FORCE - $(Q)$(MAKE) $(build)=$(obj)/compressed $@ - -ifeq ($(CONFIG_XIP_KERNEL),y) -$(obj)/xipImage: vmlinux FORCE -# $(OBJCOPY) -S -O binary -R .data -R .comment vmlinux vmlinux-text.bin -# FIXME - where has .pci_fixup crept in from? - $(OBJCOPY) -S -O binary -R .data -R .pci_fixup -R .comment vmlinux vmlinux-text.bin - $(OBJCOPY) -S -O binary -R .init -R .text -R __ex_table -R .pci_fixup -R __ksymtab -R __ksymtab_gpl -R __kcrctab -R __kcrctab_gpl -R __param -R .comment vmlinux vmlinux-data.bin - cat vmlinux-text.bin vmlinux-data.bin > $@ - $(RM) -f vmlinux-text.bin vmlinux-data.bin - @echo ' Kernel: $@ is ready' -endif - -PHONY += initrd -initrd: - @test "$(INITRD_PHYS)" != "" || \ - (echo This machine does not support INITRD; exit -1) - @test "$(INITRD)" != "" || \ - (echo You must specify INITRD; exit -1) - -install: $(obj)/Image - $(CONFIG_SHELL) $(obj)/install.sh \ - $(KERNELRELEASE) \ - $(obj)/Image System.map "$(INSTALL_PATH)" - -zinstall: $(obj)/zImage - $(CONFIG_SHELL) $(obj)/install.sh \ - $(KERNELRELEASE) \ - $(obj)/zImage System.map "$(INSTALL_PATH)" - -subdir- := compressed diff --git a/trunk/arch/arm26/boot/compressed/Makefile b/trunk/arch/arm26/boot/compressed/Makefile deleted file mode 100644 index b1d9ddebbe74..000000000000 --- a/trunk/arch/arm26/boot/compressed/Makefile +++ /dev/null @@ -1,50 +0,0 @@ -# -# linux/arch/arm26/boot/compressed/Makefile -# -# create a compressed vmlinuz image from the original vmlinux -# -# Note! ZTEXTADDR, ZBSSADDR and ZRELADDR are now exported -# from arch/arm26/boot/Makefile -# - -HEAD = head.o -OBJS = misc.o -FONTC = drivers/video/console/font_acorn_8x8.c - -OBJS += ll_char_wr.o font.o -CFLAGS_misc.o := -DPARAMS_PHYS=$(PARAMS_PHYS) - -targets := vmlinux vmlinux.lds piggy piggy.gz piggy.o font.o head.o $(OBJS) - -SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/LOAD_ADDR/$(ZRELADDR)/;s/BSS_START/$(ZBSSADDR)/ - -EXTRA_CFLAGS := $(CFLAGS_BOOT) -fpic -EXTRA_AFLAGS := -traditional - -LDFLAGS_vmlinux := -p -X \ - $(shell $(CC) $(CFLAGS)) -T - -$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \ - $(addprefix $(obj)/, $(OBJS)) FORCE - $(call if_changed,ld) - @: - - -$(obj)/piggy: vmlinux FORCE - $(call if_changed,objcopy) - -$(obj)/piggy.gz: $(obj)/piggy FORCE - $(call if_changed,gzip) - -LDFLAGS_piggy.o := -r -b binary -$(obj)/piggy.o: $(obj)/piggy.gz FORCE - $(call if_changed,ld) - -$(obj)/font.o: $(FONTC) - $(CC) $(CFLAGS) -Dstatic= -c $(FONTC) -o $(obj)/font.o - -$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in Makefile arch/arm26/boot/Makefile .config - @sed "$(SEDFLAGS)" < $< > $@ - -$(obj)/misc.o: $(obj)/misc.c $(obj)/uncompress.h lib/inflate.c - diff --git a/trunk/arch/arm26/boot/compressed/head.S b/trunk/arch/arm26/boot/compressed/head.S deleted file mode 100644 index 2a2cda36d83b..000000000000 --- a/trunk/arch/arm26/boot/compressed/head.S +++ /dev/null @@ -1,516 +0,0 @@ -/* - * linux/arch/arm26/boot/compressed/head.S - * - * Copyright (C) 1996-2002 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include - -/* - * Debugging stuff - * - * Note that these macros must not contain any code which is not - * 100% relocatable. Any attempt to do so will result in a crash. - * Please select one of the following when turning on debugging. - */ - - .macro kputc,val - mov r0, \val - bl putc - .endm - - .macro kphex,val,len - mov r0, \val - mov r1, #\len - bl phex - .endm - - .macro debug_reloc_start - .endm - - .macro debug_reloc_end - .endm - - .section ".start", #alloc, #execinstr -/* - * sort out different calling conventions - */ - .align -start: - .type start,#function - .rept 8 - mov r0, r0 - .endr - - b 1f - .word 0x016f2818 @ Magic numbers to help the loader - .word start @ absolute load/run zImage address - .word _edata @ zImage end address -1: mov r7, r1 @ save architecture ID - mov r8, #0 @ save r0 - teqp pc, #0x0c000003 @ turn off interrupts - - .text - adr r0, LC0 - ldmia r0, {r1, r2, r3, r4, r5, r6, ip, sp} - subs r0, r0, r1 @ calculate the delta offset - - teq r0, #0 @ if delta is zero, we're - beq not_relocated @ running at the address we - @ were linked at. - - add r2, r2, r0 @ different address, so we - add r3, r3, r0 @ need to fix up various - add r5, r5, r0 @ pointers. - add r6, r6, r0 - add ip, ip, r0 - add sp, sp, r0 - -1: ldr r1, [r6, #0] @ relocate entries in the GOT - add r1, r1, r0 @ table. This fixes up the - str r1, [r6], #4 @ C references. - cmp r6, ip - blo 1b - -not_relocated: mov r0, #0 -1: str r0, [r2], #4 @ clear bss - str r0, [r2], #4 - str r0, [r2], #4 - str r0, [r2], #4 - cmp r2, r3 - blo 1b - - bl cache_on - - mov r1, sp @ malloc space above stack - add r2, sp, #0x10000 @ 64k max - -/* - * Check to see if we will overwrite ourselves. - * r4 = final kernel address - * r5 = start of this image - * r2 = end of malloc space (and therefore this image) - * We basically want: - * r4 >= r2 -> OK - * r4 + image length <= r5 -> OK - */ - cmp r4, r2 - bhs wont_overwrite - add r0, r4, #4096*1024 @ 4MB largest kernel size - cmp r0, r5 - bls wont_overwrite - - mov r5, r2 @ decompress after malloc space - mov r0, r5 - mov r3, r7 - bl decompress_kernel - - add r0, r0, #127 - bic r0, r0, #127 @ align the kernel length -/* - * r0 = decompressed kernel length - * r1-r3 = unused - * r4 = kernel execution address - * r5 = decompressed kernel start - * r6 = processor ID - * r7 = architecture ID - * r8-r14 = unused - */ - add r1, r5, r0 @ end of decompressed kernel - adr r2, reloc_start - ldr r3, LC1 - add r3, r2, r3 -1: ldmia r2!, {r8 - r13} @ copy relocation code - stmia r1!, {r8 - r13} - ldmia r2!, {r8 - r13} - stmia r1!, {r8 - r13} - cmp r2, r3 - blo 1b - - bl cache_clean_flush - add pc, r5, r0 @ call relocation code - -/* - * We're not in danger of overwriting ourselves. Do this the simple way. - * - * r4 = kernel execution address - * r7 = architecture ID - */ -wont_overwrite: mov r0, r4 - mov r3, r7 - bl decompress_kernel - b call_kernel - - .type LC0, #object -LC0: .word LC0 @ r1 - .word __bss_start @ r2 - .word _end @ r3 - .word _load_addr @ r4 - .word _start @ r5 - .word _got_start @ r6 - .word _got_end @ ip - .word user_stack+4096 @ sp -LC1: .word reloc_end - reloc_start - .size LC0, . - LC0 - -/* - * Turn on the cache. We need to setup some page tables so that we - * can have both the I and D caches on. - * - * We place the page tables 16k down from the kernel execution address, - * and we hope that nothing else is using it. If we're using it, we - * will go pop! - * - * On entry, - * r4 = kernel execution address - * r6 = processor ID - * r7 = architecture number - * r8 = run-time address of "start" - * On exit, - * r1, r2, r3, r8, r9, r12 corrupted - * This routine must preserve: - * r4, r5, r6, r7 - */ - .align 5 -cache_on: mov r3, #8 @ cache_on function - b call_cache_fn - -__setup_mmu: sub r3, r4, #16384 @ Page directory size - bic r3, r3, #0xff @ Align the pointer - bic r3, r3, #0x3f00 -/* - * Initialise the page tables, turning on the cacheable and bufferable - * bits for the RAM area only. - */ - mov r0, r3 - mov r8, r0, lsr #18 - mov r8, r8, lsl #18 @ start of RAM - add r9, r8, #0x10000000 @ a reasonable RAM size - mov r1, #0x12 - orr r1, r1, #3 << 10 - add r2, r3, #16384 -1: cmp r1, r8 @ if virt > start of RAM - orrhs r1, r1, #0x0c @ set cacheable, bufferable - cmp r1, r9 @ if virt > end of RAM - bichs r1, r1, #0x0c @ clear cacheable, bufferable - str r1, [r0], #4 @ 1:1 mapping - add r1, r1, #1048576 - teq r0, r2 - bne 1b -/* - * If ever we are running from Flash, then we surely want the cache - * to be enabled also for our execution instance... We map 2MB of it - * so there is no map overlap problem for up to 1 MB compressed kernel. - * If the execution is in RAM then we would only be duplicating the above. - */ - mov r1, #0x1e - orr r1, r1, #3 << 10 - mov r2, pc, lsr #20 - orr r1, r1, r2, lsl #20 - add r0, r3, r2, lsl #2 - str r1, [r0], #4 - add r1, r1, #1048576 - str r1, [r0] - mov pc, lr - -__armv4_cache_on: - mov r12, lr - bl __setup_mmu - mov r0, #0 - mcr p15, 0, r0, c7, c10, 4 @ drain write buffer - mcr p15, 0, r0, c8, c7, 0 @ flush I,D TLBs - mrc p15, 0, r0, c1, c0, 0 @ read control reg - orr r0, r0, #0x1000 @ I-cache enable - orr r0, r0, #0x0030 - b __common_cache_on - -__arm6_cache_on: - mov r12, lr - bl __setup_mmu - mov r0, #0 - mcr p15, 0, r0, c7, c0, 0 @ invalidate whole cache v3 - mcr p15, 0, r0, c5, c0, 0 @ invalidate whole TLB v3 - mov r0, #0x30 -__common_cache_on: -#ifndef DEBUG - orr r0, r0, #0x000d @ Write buffer, mmu -#endif - mov r1, #-1 - mcr p15, 0, r3, c2, c0, 0 @ load page table pointer - mcr p15, 0, r1, c3, c0, 0 @ load domain access control - mcr p15, 0, r0, c1, c0, 0 @ load control register - mov pc, r12 - -/* - * All code following this line is relocatable. It is relocated by - * the above code to the end of the decompressed kernel image and - * executed there. During this time, we have no stacks. - * - * r0 = decompressed kernel length - * r1-r3 = unused - * r4 = kernel execution address - * r5 = decompressed kernel start - * r6 = processor ID - * r7 = architecture ID - * r8-r14 = unused - */ - .align 5 -reloc_start: add r8, r5, r0 - debug_reloc_start - mov r1, r4 -1: - .rept 4 - ldmia r5!, {r0, r2, r3, r9 - r13} @ relocate kernel - stmia r1!, {r0, r2, r3, r9 - r13} - .endr - - cmp r5, r8 - blo 1b - debug_reloc_end - -call_kernel: bl cache_clean_flush - bl cache_off - mov r0, #0 - mov r1, r7 @ restore architecture number - mov pc, r4 @ call kernel - -/* - * Here follow the relocatable cache support functions for the - * various processors. This is a generic hook for locating an - * entry and jumping to an instruction at the specified offset - * from the start of the block. Please note this is all position - * independent code. - * - * r1 = corrupted - * r2 = corrupted - * r3 = block offset - * r6 = corrupted - * r12 = corrupted - */ - -call_cache_fn: adr r12, proc_types - mrc p15, 0, r6, c0, c0 @ get processor ID -1: ldr r1, [r12, #0] @ get value - ldr r2, [r12, #4] @ get mask - eor r1, r1, r6 @ (real ^ match) - tst r1, r2 @ & mask - addeq pc, r12, r3 @ call cache function - add r12, r12, #4*5 - b 1b - -/* - * Table for cache operations. This is basically: - * - CPU ID match - * - CPU ID mask - * - 'cache on' method instruction - * - 'cache off' method instruction - * - 'cache flush' method instruction - * - * We match an entry using: ((real_id ^ match) & mask) == 0 - * - * Writethrough caches generally only need 'on' and 'off' - * methods. Writeback caches _must_ have the flush method - * defined. - */ - .type proc_types,#object -proc_types: - .word 0x41560600 @ ARM6/610 - .word 0xffffffe0 - b __arm6_cache_off @ works, but slow - b __arm6_cache_off - mov pc, lr -@ b __arm6_cache_on @ untested -@ b __arm6_cache_off -@ b __armv3_cache_flush - - .word 0x41007000 @ ARM7/710 - .word 0xfff8fe00 - b __arm7_cache_off - b __arm7_cache_off - mov pc, lr - - .word 0x41807200 @ ARM720T (writethrough) - .word 0xffffff00 - b __armv4_cache_on - b __armv4_cache_off - mov pc, lr - - .word 0x41129200 @ ARM920T - .word 0xff00fff0 - b __armv4_cache_on - b __armv4_cache_off - b __armv4_cache_flush - - .word 0x4401a100 @ sa110 / sa1100 - .word 0xffffffe0 - b __armv4_cache_on - b __armv4_cache_off - b __armv4_cache_flush - - .word 0x6901b110 @ sa1110 - .word 0xfffffff0 - b __armv4_cache_on - b __armv4_cache_off - b __armv4_cache_flush - - .word 0x69050000 @ xscale - .word 0xffff0000 - b __armv4_cache_on - b __armv4_cache_off - b __armv4_cache_flush - - .word 0 @ unrecognised type - .word 0 - mov pc, lr - mov pc, lr - mov pc, lr - - .size proc_types, . - proc_types - -/* - * Turn off the Cache and MMU. ARMv3 does not support - * reading the control register, but ARMv4 does. - * - * On entry, r6 = processor ID - * On exit, r0, r1, r2, r3, r12 corrupted - * This routine must preserve: r4, r6, r7 - */ - .align 5 -cache_off: mov r3, #12 @ cache_off function - b call_cache_fn - -__armv4_cache_off: - mrc p15, 0, r0, c1, c0 - bic r0, r0, #0x000d - mcr p15, 0, r0, c1, c0 @ turn MMU and cache off - mov r0, #0 - mcr p15, 0, r0, c7, c7 @ invalidate whole cache v4 - mcr p15, 0, r0, c8, c7 @ invalidate whole TLB v4 - mov pc, lr - -__arm6_cache_off: - mov r0, #0x00000030 @ ARM6 control reg. - b __armv3_cache_off - -__arm7_cache_off: - mov r0, #0x00000070 @ ARM7 control reg. - b __armv3_cache_off - -__armv3_cache_off: - mcr p15, 0, r0, c1, c0, 0 @ turn MMU and cache off - mov r0, #0 - mcr p15, 0, r0, c7, c0, 0 @ invalidate whole cache v3 - mcr p15, 0, r0, c5, c0, 0 @ invalidate whole TLB v3 - mov pc, lr - -/* - * Clean and flush the cache to maintain consistency. - * - * On entry, - * r6 = processor ID - * On exit, - * r1, r2, r3, r12 corrupted - * This routine must preserve: - * r0, r4, r5, r6, r7 - */ - .align 5 -cache_clean_flush: - mov r3, #16 - b call_cache_fn - -__armv4_cache_flush: - bic r1, pc, #31 - add r2, r1, #65536 @ 2x the largest dcache size -1: ldr r12, [r1], #32 @ s/w flush D cache - teq r1, r2 - bne 1b - - mcr p15, 0, r1, c7, c7, 0 @ flush I cache - mcr p15, 0, r1, c7, c10, 4 @ drain WB - mov pc, lr - -__armv3_cache_flush: - mov r1, #0 - mcr p15, 0, r0, c7, c0, 0 @ invalidate whole cache v3 - mov pc, lr - -/* - * Various debugging routines for printing hex characters and - * memory, which again must be relocatable. - */ -#ifdef DEBUG - .type phexbuf,#object -phexbuf: .space 12 - .size phexbuf, . - phexbuf - -phex: adr r3, phexbuf - mov r2, #0 - strb r2, [r3, r1] -1: subs r1, r1, #1 - movmi r0, r3 - bmi puts - and r2, r0, #15 - mov r0, r0, lsr #4 - cmp r2, #10 - addge r2, r2, #7 - add r2, r2, #'0' - strb r2, [r3, r1] - b 1b - -puts: loadsp r3 -1: ldrb r2, [r0], #1 - teq r2, #0 - moveq pc, lr -2: writeb r2 - mov r1, #0x00020000 -3: subs r1, r1, #1 - bne 3b - teq r2, #'\n' - moveq r2, #'\r' - beq 2b - teq r0, #0 - bne 1b - mov pc, lr -putc: - mov r2, r0 - mov r0, #0 - loadsp r3 - b 2b - -memdump: mov r12, r0 - mov r10, lr - mov r11, #0 -2: mov r0, r11, lsl #2 - add r0, r0, r12 - mov r1, #8 - bl phex - mov r0, #':' - bl putc -1: mov r0, #' ' - bl putc - ldr r0, [r12, r11, lsl #2] - mov r1, #8 - bl phex - and r0, r11, #7 - teq r0, #3 - moveq r0, #' ' - bleq putc - and r0, r11, #7 - add r11, r11, #1 - teq r0, #7 - bne 1b - mov r0, #'\n' - bl putc - cmp r11, #64 - blt 2b - mov pc, r10 -#endif - -reloc_end: - - .align - .section ".stack", "aw" -user_stack: .space 4096 diff --git a/trunk/arch/arm26/boot/compressed/ll_char_wr.S b/trunk/arch/arm26/boot/compressed/ll_char_wr.S deleted file mode 100644 index f024c3ebdfa5..000000000000 --- a/trunk/arch/arm26/boot/compressed/ll_char_wr.S +++ /dev/null @@ -1,162 +0,0 @@ -/* - * linux/arch/arm26/lib/ll_char_wr.S - * - * Copyright (C) 1995, 1996 Russell King. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Speedups & 1bpp code (C) 1996 Philip Blundell & Russell King. - * - * 10-04-96 RMK Various cleanups & reduced register usage. - * 08-04-98 RMK Shifts re-ordered - */ - -@ Regs: [] = corruptible -@ {} = used -@ () = do not use - -#include -#include - .text - -#define BOLD 0x01 -#define ITALIC 0x02 -#define UNDERLINE 0x04 -#define FLASH 0x08 -#define INVERSE 0x10 - -LC0: .word bytes_per_char_h - .word video_size_row - .word acorndata_8x8 - .word con_charconvtable - -ENTRY(ll_write_char) - stmfd sp!, {r4 - r7, lr} -@ -@ Smashable regs: {r0 - r3}, [r4 - r7], (r8 - fp), [ip], (sp), [lr], (pc) -@ - eor ip, r1, #UNDERLINE << 9 -/* - * calculate colours - */ - tst r1, #INVERSE << 9 - moveq r2, r1, lsr #16 - moveq r3, r1, lsr #24 - movne r2, r1, lsr #24 - movne r3, r1, lsr #16 - and r3, r3, #255 - and r2, r2, #255 -/* - * calculate offset into character table - */ - mov r1, r1, lsl #23 - mov r1, r1, lsr #20 -/* - * calculate offset required for each row [maybe I should make this an argument to this fn. - * Have to see what the register usage is like in the calling routines. - */ - adr r4, LC0 - ldmia r4, {r4, r5, r6, lr} - ldr r4, [r4] - ldr r5, [r5] -/* - * Go to resolution-dependent routine... - */ - cmp r4, #4 - blt Lrow1bpp - eor r2, r3, r2 @ Create eor mask to change colour from bg - orr r3, r3, r3, lsl #8 @ to fg. - orr r3, r3, r3, lsl #16 - add r0, r0, r5, lsl #3 @ Move to bottom of character - add r1, r1, #7 - ldrb r7, [r6, r1] - tst ip, #UNDERLINE << 9 - eoreq r7, r7, #255 - teq r4, #8 - beq Lrow8bpplp -@ -@ Smashable regs: {r0 - r3}, [r4], {r5 - r7}, (r8 - fp), [ip], (sp), {lr}, (pc) -@ - orr r3, r3, r3, lsl #4 -Lrow4bpplp: ldr r7, [lr, r7, lsl #2] - mul r7, r2, r7 - tst r1, #7 @ avoid using r7 directly after - eor ip, r3, r7 - str ip, [r0, -r5]! - LOADREGS(eqfd, sp!, {r4 - r7, pc}) - sub r1, r1, #1 - ldrb r7, [r6, r1] - ldr r7, [lr, r7, lsl #2] - mul r7, r2, r7 - tst r1, #7 @ avoid using r7 directly after - eor ip, r3, r7 - str ip, [r0, -r5]! - subne r1, r1, #1 - ldrneb r7, [r6, r1] - bne Lrow4bpplp - LOADREGS(fd, sp!, {r4 - r7, pc}) - -@ -@ Smashable regs: {r0 - r3}, [r4], {r5 - r7}, (r8 - fp), [ip], (sp), {lr}, (pc) -@ -Lrow8bpplp: mov ip, r7, lsr #4 - ldr ip, [lr, ip, lsl #2] - mul r4, r2, ip - and ip, r7, #15 @ avoid r4 - ldr ip, [lr, ip, lsl #2] @ avoid r4 - mul ip, r2, ip @ avoid r4 - eor r4, r3, r4 @ avoid ip - tst r1, #7 @ avoid ip - sub r0, r0, r5 @ avoid ip - eor ip, r3, ip - stmia r0, {r4, ip} - LOADREGS(eqfd, sp!, {r4 - r7, pc}) - sub r1, r1, #1 - ldrb r7, [r6, r1] - mov ip, r7, lsr #4 - ldr ip, [lr, ip, lsl #2] - mul r4, r2, ip - and ip, r7, #15 @ avoid r4 - ldr ip, [lr, ip, lsl #2] @ avoid r4 - mul ip, r2, ip @ avoid r4 - eor r4, r3, r4 @ avoid ip - tst r1, #7 @ avoid ip - sub r0, r0, r5 @ avoid ip - eor ip, r3, ip - stmia r0, {r4, ip} - subne r1, r1, #1 - ldrneb r7, [r6, r1] - bne Lrow8bpplp - LOADREGS(fd, sp!, {r4 - r7, pc}) - -@ -@ Smashable regs: {r0 - r3}, [r4], {r5, r6}, [r7], (r8 - fp), [ip], (sp), [lr], (pc) -@ -Lrow1bpp: add r6, r6, r1 - ldmia r6, {r4, r7} - tst ip, #INVERSE << 9 - mvnne r4, r4 - mvnne r7, r7 - strb r4, [r0], r5 - mov r4, r4, lsr #8 - strb r4, [r0], r5 - mov r4, r4, lsr #8 - strb r4, [r0], r5 - mov r4, r4, lsr #8 - strb r4, [r0], r5 - strb r7, [r0], r5 - mov r7, r7, lsr #8 - strb r7, [r0], r5 - mov r7, r7, lsr #8 - strb r7, [r0], r5 - mov r7, r7, lsr #8 - tst ip, #UNDERLINE << 9 - mvneq r7, r7 - strb r7, [r0], r5 - LOADREGS(fd, sp!, {r4 - r7, pc}) - - .bss -ENTRY(con_charconvtable) - .space 1024 diff --git a/trunk/arch/arm26/boot/compressed/misc.c b/trunk/arch/arm26/boot/compressed/misc.c deleted file mode 100644 index 0714d19c5776..000000000000 --- a/trunk/arch/arm26/boot/compressed/misc.c +++ /dev/null @@ -1,316 +0,0 @@ -/* - * misc.c - * - * This is a collection of several routines from gzip-1.0.3 - * adapted for Linux. - * - * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994 - * - * Modified for ARM Linux by Russell King - * - * Nicolas Pitre 1999/04/14 : - * For this code to run directly from Flash, all constant variables must - * be marked with 'const' and all other variables initialized at run-time - * only. This way all non constant variables will end up in the bss segment, - * which should point to addresses in RAM and cleared to 0 on start. - * This allows for a much quicker boot time. - */ - -unsigned int __machine_arch_type; - -#include - -#include -#include "uncompress.h" - -#ifdef STANDALONE_DEBUG -#define puts printf -#endif - -#define __ptr_t void * - -/* - * Optimised C version of memzero for the ARM. - */ -void __memzero (__ptr_t s, size_t n) -{ - union { void *vp; unsigned long *ulp; unsigned char *ucp; } u; - int i; - - u.vp = s; - - for (i = n >> 5; i > 0; i--) { - *u.ulp++ = 0; - *u.ulp++ = 0; - *u.ulp++ = 0; - *u.ulp++ = 0; - *u.ulp++ = 0; - *u.ulp++ = 0; - *u.ulp++ = 0; - *u.ulp++ = 0; - } - - if (n & 1 << 4) { - *u.ulp++ = 0; - *u.ulp++ = 0; - *u.ulp++ = 0; - *u.ulp++ = 0; - } - - if (n & 1 << 3) { - *u.ulp++ = 0; - *u.ulp++ = 0; - } - - if (n & 1 << 2) - *u.ulp++ = 0; - - if (n & 1 << 1) { - *u.ucp++ = 0; - *u.ucp++ = 0; - } - - if (n & 1) - *u.ucp++ = 0; -} - -static inline __ptr_t memcpy(__ptr_t __dest, __const __ptr_t __src, - size_t __n) -{ - int i = 0; - unsigned char *d = (unsigned char *)__dest, *s = (unsigned char *)__src; - - for (i = __n >> 3; i > 0; i--) { - *d++ = *s++; - *d++ = *s++; - *d++ = *s++; - *d++ = *s++; - *d++ = *s++; - *d++ = *s++; - *d++ = *s++; - *d++ = *s++; - } - - if (__n & 1 << 2) { - *d++ = *s++; - *d++ = *s++; - *d++ = *s++; - *d++ = *s++; - } - - if (__n & 1 << 1) { - *d++ = *s++; - *d++ = *s++; - } - - if (__n & 1) - *d++ = *s++; - - return __dest; -} - -/* - * gzip delarations - */ -#define OF(args) args -#define STATIC static - -typedef unsigned char uch; -typedef unsigned short ush; -typedef unsigned long ulg; - -#define WSIZE 0x8000 /* Window size must be at least 32k, */ - /* and a power of two */ - -static uch *inbuf; /* input buffer */ -static uch window[WSIZE]; /* Sliding window buffer */ - -static unsigned insize; /* valid bytes in inbuf */ -static unsigned inptr; /* index of next byte to be processed in inbuf */ -static unsigned outcnt; /* bytes in output buffer */ - -/* gzip flag byte */ -#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */ -#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */ -#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ -#define ORIG_NAME 0x08 /* bit 3 set: original file name present */ -#define COMMENT 0x10 /* bit 4 set: file comment present */ -#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */ -#define RESERVED 0xC0 /* bit 6,7: reserved */ - -#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf()) - -/* Diagnostic functions */ -#ifdef DEBUG -# define Assert(cond,msg) {if(!(cond)) error(msg);} -# define Trace(x) fprintf x -# define Tracev(x) {if (verbose) fprintf x ;} -# define Tracevv(x) {if (verbose>1) fprintf x ;} -# define Tracec(c,x) {if (verbose && (c)) fprintf x ;} -# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;} -#else -# define Assert(cond,msg) -# define Trace(x) -# define Tracev(x) -# define Tracevv(x) -# define Tracec(c,x) -# define Tracecv(c,x) -#endif - -static int fill_inbuf(void); -static void flush_window(void); -static void error(char *m); -static void gzip_mark(void **); -static void gzip_release(void **); - -extern char input_data[]; -extern char input_data_end[]; - -static uch *output_data; -static ulg output_ptr; -static ulg bytes_out; - -static void *malloc(int size); -static void free(void *where); -static void error(char *m); -static void gzip_mark(void **); -static void gzip_release(void **); - -static void puts(const char *); - -extern int end; -static ulg free_mem_ptr; -static ulg free_mem_ptr_end; - -#define HEAP_SIZE 0x3000 - -#include "../../../../lib/inflate.c" - -#ifndef STANDALONE_DEBUG -static void *malloc(int size) -{ - void *p; - - if (size <0) error("Malloc error"); - if (free_mem_ptr <= 0) error("Memory error"); - - free_mem_ptr = (free_mem_ptr + 3) & ~3; /* Align */ - - p = (void *)free_mem_ptr; - free_mem_ptr += size; - - if (free_mem_ptr >= free_mem_ptr_end) - error("Out of memory"); - return p; -} - -static void free(void *where) -{ /* gzip_mark & gzip_release do the free */ -} - -static void gzip_mark(void **ptr) -{ - arch_decomp_wdog(); - *ptr = (void *) free_mem_ptr; -} - -static void gzip_release(void **ptr) -{ - arch_decomp_wdog(); - free_mem_ptr = (long) *ptr; -} -#else -static void gzip_mark(void **ptr) -{ -} - -static void gzip_release(void **ptr) -{ -} -#endif - -/* =========================================================================== - * Fill the input buffer. This is called only when the buffer is empty - * and at least one byte is really needed. - */ -int fill_inbuf(void) -{ - if (insize != 0) - error("ran out of input data"); - - inbuf = input_data; - insize = &input_data_end[0] - &input_data[0]; - - inptr = 1; - return inbuf[0]; -} - -/* =========================================================================== - * Write the output window window[0..outcnt-1] and update crc and bytes_out. - * (Used for the decompressed data only.) - */ -void flush_window(void) -{ - ulg c = crc; - unsigned n; - uch *in, *out, ch; - - in = window; - out = &output_data[output_ptr]; - for (n = 0; n < outcnt; n++) { - ch = *out++ = *in++; - c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8); - } - crc = c; - bytes_out += (ulg)outcnt; - output_ptr += (ulg)outcnt; - outcnt = 0; - puts("."); -} - -static void error(char *x) -{ - int ptr; - - puts("\n\n"); - puts(x); - puts("\n\n -- System halted"); - - while(1); /* Halt */ -} - -#ifndef STANDALONE_DEBUG - -ulg -decompress_kernel(ulg output_start, ulg free_mem_ptr_p, ulg free_mem_ptr_end_p, - int arch_id) -{ - output_data = (uch *)output_start; /* Points to kernel start */ - free_mem_ptr = free_mem_ptr_p; - free_mem_ptr_end = free_mem_ptr_end_p; - __machine_arch_type = arch_id; - - arch_decomp_setup(); - - makecrc(); - puts("Uncompressing Linux..."); - gunzip(); - puts(" done, booting the kernel.\n"); - return output_ptr; -} -#else - -char output_buffer[1500*1024]; - -int main() -{ - output_data = output_buffer; - - makecrc(); - puts("Uncompressing Linux..."); - gunzip(); - puts("done.\n"); - return 0; -} -#endif - diff --git a/trunk/arch/arm26/boot/compressed/uncompress.h b/trunk/arch/arm26/boot/compressed/uncompress.h deleted file mode 100644 index 66d9b938a7a4..000000000000 --- a/trunk/arch/arm26/boot/compressed/uncompress.h +++ /dev/null @@ -1,110 +0,0 @@ -/* - * - * Copyright (C) 1996 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#define VIDMEM ((char *)0x02000000) - -int video_num_columns, video_num_lines, video_size_row; -int white, bytes_per_char_h; -extern unsigned long con_charconvtable[256]; - -struct param_struct { - unsigned long page_size; - unsigned long nr_pages; - unsigned long ramdisk_size; - unsigned long mountrootrdonly; - unsigned long rootdev; - unsigned long video_num_cols; - unsigned long video_num_rows; - unsigned long video_x; - unsigned long video_y; - unsigned long memc_control_reg; - unsigned char sounddefault; - unsigned char adfsdrives; - unsigned char bytes_per_char_h; - unsigned char bytes_per_char_v; - unsigned long unused[256/4-11]; -}; - -static struct param_struct *params = (struct param_struct *)0x0207c000; - -/* - * This does not append a newline - */ -static void puts(const char *s) -{ - extern void ll_write_char(char *, unsigned long); - int x,y; - unsigned char c; - char *ptr; - - x = params->video_x; - y = params->video_y; - - while ( ( c = *(unsigned char *)s++ ) != '\0' ) { - if ( c == '\n' ) { - x = 0; - if ( ++y >= video_num_lines ) { - y--; - } - } else { - ptr = VIDMEM + ((y*video_num_columns*params->bytes_per_char_v+x)*bytes_per_char_h); - ll_write_char(ptr, c|(white<<16)); - if ( ++x >= video_num_columns ) { - x = 0; - if ( ++y >= video_num_lines ) { - y--; - } - } - } - } - - params->video_x = x; - params->video_y = y; -} - -static void error(char *x); - -/* - * Setup for decompression - */ -static void arch_decomp_setup(void) -{ - int i; - - video_num_lines = params->video_num_rows; - video_num_columns = params->video_num_cols; - bytes_per_char_h = params->bytes_per_char_h; - video_size_row = video_num_columns * bytes_per_char_h; - if (bytes_per_char_h == 4) - for (i = 0; i < 256; i++) - con_charconvtable[i] = - (i & 128 ? 1 << 0 : 0) | - (i & 64 ? 1 << 4 : 0) | - (i & 32 ? 1 << 8 : 0) | - (i & 16 ? 1 << 12 : 0) | - (i & 8 ? 1 << 16 : 0) | - (i & 4 ? 1 << 20 : 0) | - (i & 2 ? 1 << 24 : 0) | - (i & 1 ? 1 << 28 : 0); - else - for (i = 0; i < 16; i++) - con_charconvtable[i] = - (i & 8 ? 1 << 0 : 0) | - (i & 4 ? 1 << 8 : 0) | - (i & 2 ? 1 << 16 : 0) | - (i & 1 ? 1 << 24 : 0); - - white = bytes_per_char_h == 8 ? 0xfc : 7; - - if (params->nr_pages * params->page_size < 4096*1024) error("<4M of mem\n"); -} - -/* - * nothing to do - */ -#define arch_decomp_wdog() diff --git a/trunk/arch/arm26/boot/compressed/vmlinux.lds.in b/trunk/arch/arm26/boot/compressed/vmlinux.lds.in deleted file mode 100644 index 86d821d5ab70..000000000000 --- a/trunk/arch/arm26/boot/compressed/vmlinux.lds.in +++ /dev/null @@ -1,60 +0,0 @@ -/* - * linux/arch/arm26/boot/compressed/vmlinux.lds.in - * - * Copyright (C) 2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -OUTPUT_ARCH(arm) -ENTRY(_start) -SECTIONS -{ - . = LOAD_ADDR; - _load_addr = .; - - . = TEXT_START; - _text = .; - - .text : { - _start = .; - *(.start) - *(.text) - *(.fixup) - *(.gnu.warning) - *(.rodata) - *(.rodata.*) - *(.glue_7) - *(.glue_7t) - input_data = .; - arch/arm26/boot/compressed/piggy.o - input_data_end = .; - . = ALIGN(4); - } - - _etext = .; - - _got_start = .; - .got : { *(.got) } - _got_end = .; - .got.plt : { *(.got.plt) } - .data : { *(.data) } - _edata = .; - - . = BSS_START; - __bss_start = .; - .bss : { *(.bss) } - _end = .; - - .stack (NOLOAD) : { *(.stack) } - - .stab 0 : { *(.stab) } - .stabstr 0 : { *(.stabstr) } - .stab.excl 0 : { *(.stab.excl) } - .stab.exclstr 0 : { *(.stab.exclstr) } - .stab.index 0 : { *(.stab.index) } - .stab.indexstr 0 : { *(.stab.indexstr) } - .comment 0 : { *(.comment) } -} - diff --git a/trunk/arch/arm26/boot/install.sh b/trunk/arch/arm26/boot/install.sh deleted file mode 100644 index 8a8399b26cf7..000000000000 --- a/trunk/arch/arm26/boot/install.sh +++ /dev/null @@ -1,62 +0,0 @@ -#!/bin/sh -# -# arch/arm26/boot/install.sh -# -# This file is subject to the terms and conditions of the GNU General Public -# License. See the file "COPYING" in the main directory of this archive -# for more details. -# -# Copyright (C) 1995 by Linus Torvalds -# -# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin -# Adapted from code in arch/i386/boot/install.sh by Russell King -# Stolen from arm32 by Ian Molton -# -# "make install" script for arm architecture -# -# Arguments: -# $1 - kernel version -# $2 - kernel image file -# $3 - kernel map file -# $4 - default install path (blank if root directory) -# - -# User may have a custom install script - -if [ -x /sbin/${CROSS_COMPILE}installkernel ]; then - exec /sbin/${CROSS_COMPILE}installkernel "$@" -fi - -if [ "$2" = "zImage" ]; then -# Compressed install - echo "Installing compressed kernel" - if [ -f $4/vmlinuz-$1 ]; then - mv $4/vmlinuz-$1 $4/vmlinuz.old - fi - - if [ -f $4/System.map-$1 ]; then - mv $4/System.map-$1 $4/System.old - fi - - cat $2 > $4/vmlinuz-$1 - cp $3 $4/System.map-$1 -else -# Normal install - echo "Installing normal kernel" - if [ -f $4/vmlinux-$1 ]; then - mv $4/vmlinux-$1 $4/vmlinux.old - fi - - if [ -f $4/System.map ]; then - mv $4/System.map $4/System.old - fi - - cat $2 > $4/vmlinux-$1 - cp $3 $4/System.map -fi - -if [ -x /sbin/loadmap ]; then - /sbin/loadmap --rdev /dev/ima -else - echo "You have to install it yourself" -fi diff --git a/trunk/arch/arm26/defconfig b/trunk/arch/arm26/defconfig deleted file mode 100644 index 2b7d44bf49bf..000000000000 --- a/trunk/arch/arm26/defconfig +++ /dev/null @@ -1,361 +0,0 @@ -# -# Automatically generated by make menuconfig: don't edit -# -CONFIG_ARM=y -# CONFIG_EISA is not set -# CONFIG_SBUS is not set -# CONFIG_MCA is not set -CONFIG_UID16=y -CONFIG_RWSEM_GENERIC_SPINLOCK=y -# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set -# CONFIG_GENERIC_BUST_SPINLOCK is not set -# CONFIG_GENERIC_ISA_DMA is not set - -# -# Code maturity level options -# -CONFIG_EXPERIMENTAL=y - -# -# General setup -# -# CONFIG_NET is not set -# CONFIG_SYSVIPC is not set -# CONFIG_BSD_PROCESS_ACCT is not set -# CONFIG_SYSCTL is not set - -# -# Loadable module support -# -# CONFIG_MODULES is not set - -# -# System Type -# -CONFIG_ARCH_ARC=y -# CONFIG_ARCH_A5K is not set -CONFIG_ARCH_ACORN=y -# CONFIG_CPU_32 is not set -CONFIG_CPU_26=y -# CONFIG_PAGESIZE_16 is not set - -# -# General setup -# -CONFIG_FIQ=y -# CONFIG_ZBOOT_ROM is not set -CONFIG_ZBOOT_ROM_TEXT=0 -CONFIG_ZBOOT_ROM_BSS=0 -CONFIG_FPE_NWFPE=y -CONFIG_KCORE_ELF=y -# CONFIG_KCORE_AOUT is not set -# CONFIG_BINFMT_AOUT is not set -# CONFIG_BINFMT_ELF is not set -# CONFIG_BINFMT_MISC is not set -CONFIG_CMDLINE="" -# CONFIG_ALIGNMENT_TRAP is not set - -# -# Parallel port support -# -# CONFIG_PARPORT is not set - -# -# Plug and Play configuration -# -# CONFIG_PNP is not set -# CONFIG_ISAPNP is not set -# CONFIG_PNPBIOS is not set - -# -# Block devices -# -# CONFIG_BLK_DEV_FD is not set -# CONFIG_BLK_DEV_XD is not set -# CONFIG_PARIDE is not set -# CONFIG_BLK_CPQ_DA is not set -# CONFIG_BLK_CPQ_CISS_DA is not set -# CONFIG_CISS_SCSI_TAPE is not set -# CONFIG_BLK_DEV_DAC960 is not set -# CONFIG_BLK_DEV_UMEM is not set -# CONFIG_BLK_DEV_LOOP is not set -# CONFIG_BLK_DEV_NBD is not set -# CONFIG_BLK_DEV_RAM is not set -# CONFIG_BLK_DEV_INITRD is not set - -# -# Multi-device support (RAID and LVM) -# -# CONFIG_MD is not set -# CONFIG_BLK_DEV_MD is not set -# CONFIG_MD_LINEAR is not set -# CONFIG_MD_RAID0 is not set -# CONFIG_MD_RAID1 is not set -# CONFIG_MD_RAID5 is not set -# CONFIG_MD_MULTIPATH is not set -# CONFIG_BLK_DEV_LVM is not set - -# -# Acorn-specific block devices -# -# CONFIG_BLK_DEV_FD1772 is not set -# CONFIG_BLK_DEV_MFM is not set - -# -# ATA/ATAPI/MFM/RLL support -# -# CONFIG_IDE is not set -# CONFIG_BLK_DEV_HD is not set - -# -# SCSI support -# -# CONFIG_SCSI is not set - -# -# ISDN subsystem -# - -# -# Input device support -# -# CONFIG_INPUT is not set -# CONFIG_INPUT_KEYBDEV is not set -# CONFIG_INPUT_MOUSEDEV is not set -# CONFIG_INPUT_MOUSEDEV_PSAUX is not set -# CONFIG_INPUT_JOYDEV is not set -# CONFIG_INPUT_TSDEV is not set -# CONFIG_INPUT_TSLIBDEV is not set -# CONFIG_INPUT_EVDEV is not set -# CONFIG_INPUT_EVBUG is not set -# CONFIG_INPUT_UINPUT is not set -# CONFIG_GAMEPORT is not set -CONFIG_SOUND_GAMEPORT=y -# CONFIG_GAMEPORT_NS558 is not set -# CONFIG_GAMEPORT_L4 is not set -# CONFIG_GAMEPORT_EMU10K1 is not set -# CONFIG_GAMEPORT_VORTEX is not set -# CONFIG_GAMEPORT_FM801 is not set -# CONFIG_GAMEPORT_CS461x is not set -# CONFIG_SERIO is not set -# CONFIG_SERIO_I8042 is not set -# CONFIG_SERIO_SERPORT is not set -# CONFIG_SERIO_CT82C710 is not set -# CONFIG_SERIO_PARKBD is not set -# CONFIG_SERIO_ACORN is not set - -# -# Character devices -# -# CONFIG_VT is not set -# CONFIG_SERIAL_NONSTANDARD is not set - -# -# Serial drivers -# -# CONFIG_SERIAL_8250 is not set -# CONFIG_SERIAL_8250_CONSOLE is not set -# CONFIG_SERIAL_8250_CS is not set -# CONFIG_SERIAL_8250_EXTENDED is not set -# CONFIG_SERIAL_8250_MANY_PORTS is not set -# CONFIG_SERIAL_8250_SHARE_IRQ is not set -# CONFIG_SERIAL_8250_DETECT_IRQ is not set -# CONFIG_SERIAL_8250_MULTIPORT is not set -# CONFIG_SERIAL_8250_RSA is not set -# CONFIG_ATOMWIDE_SERIAL is not set -# CONFIG_DUALSP_SERIAL is not set -# CONFIG_SERIAL_AMBA is not set -# CONFIG_SERIAL_AMBA_CONSOLE is not set -# CONFIG_SERIAL_CLPS711X is not set -# CONFIG_SERIAL_CLPS711X_CONSOLE is not set -# CONFIG_SERIAL_CLPS711X_OLD_NAME is not set -# CONFIG_SERIAL_21285 is not set -# CONFIG_SERIAL_21285_OLD is not set -# CONFIG_SERIAL_21285_CONSOLE is not set -# CONFIG_SERIAL_UART00 is not set -# CONFIG_SERIAL_UART00_CONSOLE is not set -# CONFIG_SERIAL_SA1100 is not set -# CONFIG_SERIAL_SA1100_CONSOLE is not set -# CONFIG_UNIX98_PTYS is not set - -# -# I2C support -# -CONFIG_I2C=y -CONFIG_I2C_ALGOBIT=y -CONFIG_I2C_ALGOPCF=y -# CONFIG_I2C_ELEKTOR is not set -CONFIG_I2C_CHARDEV=y -# CONFIG_I2C_PROC is not set - -# -# L3 serial bus support -# -# CONFIG_L3 is not set -# CONFIG_L3_ALGOBIT is not set -# CONFIG_L3_BIT_SA1100_GPIO is not set -# CONFIG_L3_SA1111 is not set -# CONFIG_BIT_SA1100_GPIO is not set - -# -# Mice -# -# CONFIG_BUSMOUSE is not set -# CONFIG_PSMOUSE is not set -# CONFIG_QIC02_TAPE is not set - -# -# Watchdog Cards -# -# CONFIG_WATCHDOG is not set -# CONFIG_NVRAM is not set -# CONFIG_RTC is not set -# CONFIG_DTLK is not set -# CONFIG_R3964 is not set -# CONFIG_APPLICOM is not set - -# -# Ftape, the floppy tape device driver -# -# CONFIG_FTAPE is not set -# CONFIG_AGP is not set -# CONFIG_DRM is not set -# CONFIG_RAW_DRIVER is not set - -# -# Multimedia devices -# -# CONFIG_VIDEO_DEV is not set - -# -# File systems -# -# CONFIG_QUOTA is not set -# CONFIG_QFMT_V1 is not set -# CONFIG_QFMT_V2 is not set -# CONFIG_AUTOFS_FS is not set -# CONFIG_AUTOFS4_FS is not set -# CONFIG_REISERFS_FS is not set -# CONFIG_REISERFS_CHECK is not set -# CONFIG_REISERFS_PROC_INFO is not set -# CONFIG_ADFS_FS is not set -# CONFIG_ADFS_FS_RW is not set -# CONFIG_AFFS_FS is not set -# CONFIG_HFS_FS is not set -# CONFIG_BFS_FS is not set -# CONFIG_EXT3_FS is not set -# CONFIG_JBD is not set -# CONFIG_JBD_DEBUG is not set -# CONFIG_FAT_FS is not set -# CONFIG_MSDOS_FS is not set -# CONFIG_VFAT_FS is not set -# CONFIG_EFS_FS is not set -# CONFIG_JFFS_FS is not set -# CONFIG_JFFS2_FS is not set -# CONFIG_CRAMFS is not set -# CONFIG_TMPFS is not set -CONFIG_RAMFS=y -# CONFIG_ISO9660_FS is not set -# CONFIG_JOLIET is not set -# CONFIG_ZISOFS is not set -# CONFIG_JFS_FS is not set -# CONFIG_JFS_DEBUG is not set -# CONFIG_JFS_STATISTICS is not set -# CONFIG_MINIX_FS is not set -# CONFIG_VXFS_FS is not set -# CONFIG_NTFS_FS is not set -# CONFIG_NTFS_DEBUG is not set -# CONFIG_HPFS_FS is not set -CONFIG_PROC_FS=y -# CONFIG_DEVFS_FS is not set -# CONFIG_DEVFS_MOUNT is not set -# CONFIG_DEVFS_DEBUG is not set -# CONFIG_DEVPTS_FS is not set -# CONFIG_QNX4FS_FS is not set -# CONFIG_QNX4FS_RW is not set -# CONFIG_ROMFS_FS is not set -CONFIG_EXT2_FS=y -# CONFIG_SYSV_FS is not set -# CONFIG_UDF_FS is not set -# CONFIG_UDF_RW is not set -# CONFIG_UFS_FS is not set -# CONFIG_UFS_FS_WRITE is not set -# CONFIG_NCPFS_NLS is not set -# CONFIG_SMB_FS is not set -# CONFIG_ZISOFS_FS is not set - -# -# Partition Types -# -CONFIG_PARTITION_ADVANCED=y -CONFIG_ACORN_PARTITION=y -# CONFIG_ACORN_PARTITION_EESOX is not set -# CONFIG_ACORN_PARTITION_ICS is not set -CONFIG_ACORN_PARTITION_ADFS=y -# CONFIG_ACORN_PARTITION_POWERTEC is not set -CONFIG_ACORN_PARTITION_RISCIX=y -# CONFIG_OSF_PARTITION is not set -# CONFIG_AMIGA_PARTITION is not set -# CONFIG_ATARI_PARTITION is not set -# CONFIG_MAC_PARTITION is not set -# CONFIG_MSDOS_PARTITION is not set -# CONFIG_LDM_PARTITION is not set -# CONFIG_SGI_PARTITION is not set -# CONFIG_ULTRIX_PARTITION is not set -# CONFIG_SUN_PARTITION is not set -# CONFIG_EFI_PARTITION is not set -# CONFIG_SMB_NLS is not set -# CONFIG_NLS is not set - -# -# Sound -# -# CONFIG_SOUND is not set - -# -# Multimedia Capabilities Port drivers -# -# CONFIG_MCP is not set -# CONFIG_MCP_SA1100 is not set -# CONFIG_MCP_UCB1200 is not set -# CONFIG_MCP_UCB1200_AUDIO is not set -# CONFIG_MCP_UCB1200_TS is not set - -# -# Console Switches -# -# CONFIG_SWITCHES is not set -# CONFIG_SWITCHES_SA1100 is not set -# CONFIG_SWITCHES_UCB1X00 is not set - -# -# USB support -# -# CONFIG_USB is not set - -# -# Kernel hacking -# -# CONFIG_NO_FRAME_POINTER is not set -CONFIG_DEBUG_USER=y -CONFIG_DEBUG_INFO=y -CONFIG_DEBUG_KERNEL=y -CONFIG_DEBUG_SLAB=y -CONFIG_MAGIC_SYSRQ=y -CONFIG_DEBUG_SPINLOCK=y -CONFIG_DEBUG_WAITQ=y -CONFIG_DEBUG_BUGVERBOSE=y -CONFIG_DEBUG_ERRORS=y -CONFIG_DEBUG_LL=y - -# -# Security options -# -CONFIG_SECURITY_CAPABILITIES=y - -# -# Library routines -# -CONFIG_CRC32=y -# CONFIG_ZLIB_INFLATE is not set -# CONFIG_ZLIB_DEFLATE is not set diff --git a/trunk/arch/arm26/kernel/Makefile b/trunk/arch/arm26/kernel/Makefile deleted file mode 100644 index ee9fb49fdb78..000000000000 --- a/trunk/arch/arm26/kernel/Makefile +++ /dev/null @@ -1,17 +0,0 @@ -# -# Makefile for the linux kernel. -# - -# Object file lists. - -AFLAGS_head.o := -DTEXTADDR=$(TEXTADDR) - -obj-y := compat.o dma.o entry.o irq.o process.o ptrace.o \ - semaphore.o setup.o signal.o sys_arm.o time.o traps.o \ - ecard.o dma.o ecard.o fiq.o time.o - -extra-y := head.o init_task.o vmlinux.lds - -obj-$(CONFIG_FIQ) += fiq.o -obj-$(CONFIG_MODULES) += armksyms.o - diff --git a/trunk/arch/arm26/kernel/armksyms.c b/trunk/arch/arm26/kernel/armksyms.c deleted file mode 100644 index fe1e3ceed7cb..000000000000 --- a/trunk/arch/arm26/kernel/armksyms.c +++ /dev/null @@ -1,204 +0,0 @@ -/* - * linux/arch/arm26/kernel/armksyms.c - * - * Copyright (C) 2003 Ian Molton - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -extern int dump_fpu(struct pt_regs *, struct user_fp_struct *); -extern void inswb(unsigned int port, void *to, int len); -extern void outswb(unsigned int port, const void *to, int len); - -extern void __bad_xchg(volatile void *ptr, int size); - -/* - * libgcc functions - functions that are used internally by the - * compiler... (prototypes are not correct though, but that - * doesn't really matter since they're not versioned). - */ -extern void __ashldi3(void); -extern void __ashrdi3(void); -extern void __divsi3(void); -extern void __lshrdi3(void); -extern void __modsi3(void); -extern void __muldi3(void); -extern void __ucmpdi2(void); -extern void __udivdi3(void); -extern void __umoddi3(void); -extern void __udivmoddi4(void); -extern void __udivsi3(void); -extern void __umodsi3(void); -extern void abort(void); - -extern void ret_from_exception(void); -extern void fpundefinstr(void); -extern void fp_enter(void); - -/* - * This has a special calling convention; it doesn't - * modify any of the usual registers, except for LR. - * FIXME - we used to use our own local version - looks to be in kernel/softirq now - */ -//extern void __do_softirq(void); - -#define EXPORT_SYMBOL_ALIAS(sym,orig) \ - const char __kstrtab_##sym[] \ - __attribute__((section(".kstrtab"))) = \ - __MODULE_STRING(sym); \ - const struct module_symbol __ksymtab_##sym \ - __attribute__((section("__ksymtab"))) = \ - { (unsigned long)&orig, __kstrtab_##sym }; - -/* - * floating point math emulator support. - * These symbols will never change their calling convention... - */ -EXPORT_SYMBOL_ALIAS(kern_fp_enter,fp_enter); -EXPORT_SYMBOL_ALIAS(fp_printk,printk); -EXPORT_SYMBOL_ALIAS(fp_send_sig,send_sig); - -EXPORT_SYMBOL(fpundefinstr); -EXPORT_SYMBOL(ret_from_exception); - -#ifdef CONFIG_VT -EXPORT_SYMBOL(kd_mksound); -#endif - -//EXPORT_SYMBOL(__do_softirq); - - /* platform dependent support */ -EXPORT_SYMBOL(dump_thread); -EXPORT_SYMBOL(dump_fpu); -EXPORT_SYMBOL(udelay); -EXPORT_SYMBOL(kernel_thread); -EXPORT_SYMBOL(system_rev); -EXPORT_SYMBOL(system_serial_low); -EXPORT_SYMBOL(system_serial_high); -#ifdef CONFIG_DEBUG_BUGVERBOSE -EXPORT_SYMBOL(__bug); -#endif -EXPORT_SYMBOL(__bad_xchg); -EXPORT_SYMBOL(__readwrite_bug); -EXPORT_SYMBOL(set_irq_type); -EXPORT_SYMBOL(pm_idle); -EXPORT_SYMBOL(pm_power_off); - - /* processor dependencies */ -EXPORT_SYMBOL(__machine_arch_type); - - /* networking */ -EXPORT_SYMBOL(csum_partial_copy_nocheck); -EXPORT_SYMBOL(__csum_ipv6_magic); - - /* io */ -#ifndef __raw_readsb -EXPORT_SYMBOL(__raw_readsb); -#endif -#ifndef __raw_readsw -EXPORT_SYMBOL(__raw_readsw); -#endif -#ifndef __raw_readsl -EXPORT_SYMBOL(__raw_readsl); -#endif -#ifndef __raw_writesb -EXPORT_SYMBOL(__raw_writesb); -#endif -#ifndef __raw_writesw -EXPORT_SYMBOL(__raw_writesw); -#endif -#ifndef __raw_writesl -EXPORT_SYMBOL(__raw_writesl); -#endif - - /* string / mem functions */ -EXPORT_SYMBOL(strcpy); -EXPORT_SYMBOL(strncpy); -EXPORT_SYMBOL(strcat); -EXPORT_SYMBOL(strncat); -EXPORT_SYMBOL(strcmp); -EXPORT_SYMBOL(strncmp); -EXPORT_SYMBOL(strchr); -EXPORT_SYMBOL(strlen); -EXPORT_SYMBOL(strnlen); -EXPORT_SYMBOL(strrchr); -EXPORT_SYMBOL(strstr); -EXPORT_SYMBOL(memset); -EXPORT_SYMBOL(memcpy); -EXPORT_SYMBOL(memmove); -EXPORT_SYMBOL(memcmp); -EXPORT_SYMBOL(memscan); -EXPORT_SYMBOL(__memzero); - - /* user mem (segment) */ -EXPORT_SYMBOL(uaccess_kernel); -EXPORT_SYMBOL(uaccess_user); - -EXPORT_SYMBOL(__get_user_1); -EXPORT_SYMBOL(__get_user_2); -EXPORT_SYMBOL(__get_user_4); -EXPORT_SYMBOL(__get_user_8); - -EXPORT_SYMBOL(__put_user_1); -EXPORT_SYMBOL(__put_user_2); -EXPORT_SYMBOL(__put_user_4); -EXPORT_SYMBOL(__put_user_8); - - /* gcc lib functions */ -EXPORT_SYMBOL(__ashldi3); -EXPORT_SYMBOL(__ashrdi3); -EXPORT_SYMBOL(__divsi3); -EXPORT_SYMBOL(__lshrdi3); -EXPORT_SYMBOL(__modsi3); -EXPORT_SYMBOL(__muldi3); -EXPORT_SYMBOL(__ucmpdi2); -EXPORT_SYMBOL(__udivdi3); -EXPORT_SYMBOL(__umoddi3); -EXPORT_SYMBOL(__udivmoddi4); -EXPORT_SYMBOL(__udivsi3); -EXPORT_SYMBOL(__umodsi3); - - /* bitops */ -EXPORT_SYMBOL(_set_bit_le); -EXPORT_SYMBOL(_test_and_set_bit_le); -EXPORT_SYMBOL(_clear_bit_le); -EXPORT_SYMBOL(_test_and_clear_bit_le); -EXPORT_SYMBOL(_change_bit_le); -EXPORT_SYMBOL(_test_and_change_bit_le); -EXPORT_SYMBOL(_find_first_zero_bit_le); -EXPORT_SYMBOL(_find_next_zero_bit_le); - - /* elf */ -EXPORT_SYMBOL(elf_platform); -EXPORT_SYMBOL(elf_hwcap); - -#ifdef CONFIG_PREEMPT -EXPORT_SYMBOL(kernel_flag); -#endif diff --git a/trunk/arch/arm26/kernel/asm-offsets.c b/trunk/arch/arm26/kernel/asm-offsets.c deleted file mode 100644 index 76d9d7d489a8..000000000000 --- a/trunk/arch/arm26/kernel/asm-offsets.c +++ /dev/null @@ -1,55 +0,0 @@ -/* - * Copyright (C) 1995-2001 Russell King - * 2001-2002 Keith Owens - * 2003 Ian Molton - * - * Generate definitions needed by assembly language modules. - * This code generates raw asm output which is post-processed to extract - * and format the required data. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include -#include - -#include -#include - -/* - * Make sure that the compiler and target are compatible. - */ -#if defined(__APCS_32__) && defined(CONFIG_CPU_26) -#error Sorry, your compiler targets APCS-32 but this kernel requires APCS-26 -#endif - -/* Use marker if you need to separate the values later */ - -#define DEFINE(sym, val) \ - asm volatile("\n->" #sym " %0 " #val : : "i" (val)) - -#define BLANK() asm volatile("\n->" : : ) - -int main(void) -{ - DEFINE(TSK_ACTIVE_MM, offsetof(struct task_struct, active_mm)); - BLANK(); - DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm)); - DEFINE(VMA_VM_FLAGS, offsetof(struct vm_area_struct, vm_flags)); - BLANK(); - DEFINE(VM_EXEC, VM_EXEC); - BLANK(); - BLANK(); - DEFINE(PAGE_PRESENT, _PAGE_PRESENT); - DEFINE(PAGE_READONLY, _PAGE_READONLY); - DEFINE(PAGE_NOT_USER, _PAGE_NOT_USER); - DEFINE(PAGE_OLD, _PAGE_OLD); - DEFINE(PAGE_CLEAN, _PAGE_CLEAN); - BLANK(); - DEFINE(PAGE_SZ, PAGE_SIZE); - BLANK(); - DEFINE(SYS_ERROR0, 0x9f0000); - return 0; -} diff --git a/trunk/arch/arm26/kernel/calls.S b/trunk/arch/arm26/kernel/calls.S deleted file mode 100644 index e3d276827c84..000000000000 --- a/trunk/arch/arm26/kernel/calls.S +++ /dev/null @@ -1,265 +0,0 @@ -/* - * linux/arch/arm26/kernel/calls.S - * - * Copyright (C) 2003 Ian Molton - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * FIXME - * This file is included twice in entry.S which may not be necessary - */ - -//FIXME - clearly NR_syscalls is never defined here - -#ifndef NR_syscalls -#define NR_syscalls 256 -#else - -__syscall_start: -/* 0 */ .long sys_ni_syscall - .long sys_exit - .long sys_fork_wrapper - .long sys_read - .long sys_write -/* 5 */ .long sys_open - .long sys_close - .long sys_ni_syscall /* was sys_waitpid */ - .long sys_creat - .long sys_link -/* 10 */ .long sys_unlink - .long sys_execve_wrapper - .long sys_chdir - .long sys_time /* used by libc4 */ - .long sys_mknod -/* 15 */ .long sys_chmod - .long sys_lchown16 - .long sys_ni_syscall /* was sys_break */ - .long sys_ni_syscall /* was sys_stat */ - .long sys_lseek -/* 20 */ .long sys_getpid - .long sys_mount - .long sys_oldumount /* used by libc4 */ - .long sys_setuid16 - .long sys_getuid16 -/* 25 */ .long sys_stime - .long sys_ptrace - .long sys_alarm /* used by libc4 */ - .long sys_ni_syscall /* was sys_fstat */ - .long sys_pause -/* 30 */ .long sys_utime /* used by libc4 */ - .long sys_ni_syscall /* was sys_stty */ - .long sys_ni_syscall /* was sys_getty */ - .long sys_access - .long sys_nice -/* 35 */ .long sys_ni_syscall /* was sys_ftime */ - .long sys_sync - .long sys_kill - .long sys_rename - .long sys_mkdir -/* 40 */ .long sys_rmdir - .long sys_dup - .long sys_pipe - .long sys_times - .long sys_ni_syscall /* was sys_prof */ -/* 45 */ .long sys_brk - .long sys_setgid16 - .long sys_getgid16 - .long sys_ni_syscall /* was sys_signal */ - .long sys_geteuid16 -/* 50 */ .long sys_getegid16 - .long sys_acct - .long sys_umount - .long sys_ni_syscall /* was sys_lock */ - .long sys_ioctl -/* 55 */ .long sys_fcntl - .long sys_ni_syscall /* was sys_mpx */ - .long sys_setpgid - .long sys_ni_syscall /* was sys_ulimit */ - .long sys_ni_syscall /* was sys_olduname */ -/* 60 */ .long sys_umask - .long sys_chroot - .long sys_ustat - .long sys_dup2 - .long sys_getppid -/* 65 */ .long sys_getpgrp - .long sys_setsid - .long sys_sigaction - .long sys_ni_syscall /* was sys_sgetmask */ - .long sys_ni_syscall /* was sys_ssetmask */ -/* 70 */ .long sys_setreuid16 - .long sys_setregid16 - .long sys_sigsuspend_wrapper - .long sys_sigpending - .long sys_sethostname -/* 75 */ .long sys_setrlimit - .long sys_old_getrlimit /* used by libc4 */ - .long sys_getrusage - .long sys_gettimeofday - .long sys_settimeofday -/* 80 */ .long sys_getgroups16 - .long sys_setgroups16 - .long old_select /* used by libc4 */ - .long sys_symlink - .long sys_ni_syscall /* was sys_lstat */ -/* 85 */ .long sys_readlink - .long sys_uselib - .long sys_swapon - .long sys_reboot - .long old_readdir /* used by libc4 */ -/* 90 */ .long old_mmap /* used by libc4 */ - .long sys_munmap - .long sys_truncate - .long sys_ftruncate - .long sys_fchmod -/* 95 */ .long sys_fchown16 - .long sys_getpriority - .long sys_setpriority - .long sys_ni_syscall /* was sys_profil */ - .long sys_statfs -/* 100 */ .long sys_fstatfs - .long sys_ni_syscall - .long sys_socketcall - .long sys_syslog - .long sys_setitimer -/* 105 */ .long sys_getitimer - .long sys_newstat - .long sys_newlstat - .long sys_newfstat - .long sys_ni_syscall /* was sys_uname */ -/* 110 */ .long sys_ni_syscall /* was sys_iopl */ - .long sys_vhangup - .long sys_ni_syscall - .long sys_syscall /* call a syscall */ - .long sys_wait4 -/* 115 */ .long sys_swapoff - .long sys_sysinfo - .long sys_ipc - .long sys_fsync - .long sys_sigreturn_wrapper -/* 120 */ .long sys_clone_wapper - .long sys_setdomainname - .long sys_newuname - .long sys_ni_syscall - .long sys_adjtimex -/* 125 */ .long sys_mprotect - .long sys_sigprocmask - .long sys_ni_syscall /* WAS: sys_create_module */ - .long sys_init_module - .long sys_delete_module -/* 130 */ .long sys_ni_syscall /* WAS: sys_get_kernel_syms */ - .long sys_quotactl - .long sys_getpgid - .long sys_fchdir - .long sys_bdflush -/* 135 */ .long sys_sysfs - .long sys_personality - .long sys_ni_syscall /* .long _sys_afs_syscall */ - .long sys_setfsuid16 - .long sys_setfsgid16 -/* 140 */ .long sys_llseek - .long sys_getdents - .long sys_select - .long sys_flock - .long sys_msync -/* 145 */ .long sys_readv - .long sys_writev - .long sys_getsid - .long sys_fdatasync - .long sys_sysctl -/* 150 */ .long sys_mlock - .long sys_munlock - .long sys_mlockall - .long sys_munlockall - .long sys_sched_setparam -/* 155 */ .long sys_sched_getparam - .long sys_sched_setscheduler - .long sys_sched_getscheduler - .long sys_sched_yield - .long sys_sched_get_priority_max -/* 160 */ .long sys_sched_get_priority_min - .long sys_sched_rr_get_interval - .long sys_nanosleep - .long sys_arm_mremap - .long sys_setresuid16 -/* 165 */ .long sys_getresuid16 - .long sys_ni_syscall - .long sys_ni_syscall /* WAS: sys_query_module */ - .long sys_poll - .long sys_nfsservctl -/* 170 */ .long sys_setresgid16 - .long sys_getresgid16 - .long sys_prctl - .long sys_rt_sigreturn_wrapper - .long sys_rt_sigaction -/* 175 */ .long sys_rt_sigprocmask - .long sys_rt_sigpending - .long sys_rt_sigtimedwait - .long sys_rt_sigqueueinfo - .long sys_rt_sigsuspend_wrapper -/* 180 */ .long sys_pread64 - .long sys_pwrite64 - .long sys_chown16 - .long sys_getcwd - .long sys_capget -/* 185 */ .long sys_capset - .long sys_sigaltstack_wrapper - .long sys_sendfile - .long sys_ni_syscall - .long sys_ni_syscall -/* 190 */ .long sys_vfork_wrapper - .long sys_getrlimit - .long sys_mmap2 - .long sys_truncate64 - .long sys_ftruncate64 -/* 195 */ .long sys_stat64 - .long sys_lstat64 - .long sys_fstat64 - .long sys_lchown - .long sys_getuid -/* 200 */ .long sys_getgid - .long sys_geteuid - .long sys_getegid - .long sys_setreuid - .long sys_setregid -/* 205 */ .long sys_getgroups - .long sys_setgroups - .long sys_fchown - .long sys_setresuid - .long sys_getresuid -/* 210 */ .long sys_setresgid - .long sys_getresgid - .long sys_chown - .long sys_setuid - .long sys_setgid -/* 215 */ .long sys_setfsuid - .long sys_setfsgid - .long sys_getdents64 - .long sys_pivot_root - .long sys_mincore -/* 220 */ .long sys_madvise - .long sys_fcntl64 - .long sys_ni_syscall /* TUX */ - .long sys_ni_syscall /* WAS: sys_security */ - .long sys_gettid -/* 225 */ .long sys_readahead - .long sys_setxattr - .long sys_lsetxattr - .long sys_fsetxattr - .long sys_getxattr -/* 230 */ .long sys_lgetxattr - .long sys_fgetxattr - .long sys_listxattr - .long sys_llistxattr - .long sys_flistxattr -/* 235 */ .long sys_removexattr - .long sys_lremovexattr - .long sys_fremovexattr - .long sys_tkill -__syscall_end: - - .rept NR_syscalls - (__syscall_end - __syscall_start) / 4 - .long sys_ni_syscall - .endr -#endif diff --git a/trunk/arch/arm26/kernel/compat.c b/trunk/arch/arm26/kernel/compat.c deleted file mode 100644 index 21e966ff0aa7..000000000000 --- a/trunk/arch/arm26/kernel/compat.c +++ /dev/null @@ -1,173 +0,0 @@ -/* - * linux/arch/arm26/kernel/compat.c - * - * Copyright (C) 2001 Russell King - * 2003 Ian Molton - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * We keep the old params compatibility cruft in one place (here) - * so we don't end up with lots of mess around other places. - * - * NOTE: - * The old struct param_struct is deprecated, but it will be kept in - * the kernel for 5 years from now (2001). This will allow boot loaders - * to convert to the new struct tag way. - */ -#include -#include -#include -#include - -#include -#include -#include - -//#include -//#include - -/* - * Usage: - * - do not go blindly adding fields, add them at the end - * - when adding fields, don't rely on the address until - * a patch from me has been released - * - unused fields should be zero (for future expansion) - * - this structure is relatively short-lived - only - * guaranteed to contain useful data in setup_arch() - * - * This is the old deprecated way to pass parameters to the kernel - */ -struct param_struct { - union { - struct { - unsigned long page_size; /* 0 */ - unsigned long nr_pages; /* 4 */ - unsigned long ramdisk_size; /* 8 */ - unsigned long flags; /* 12 */ -#define FLAG_READONLY 1 -#define FLAG_RDLOAD 4 -#define FLAG_RDPROMPT 8 - unsigned long rootdev; /* 16 */ - unsigned long video_num_cols; /* 20 */ - unsigned long video_num_rows; /* 24 */ - unsigned long video_x; /* 28 */ - unsigned long video_y; /* 32 */ - unsigned long memc_control_reg; /* 36 */ - unsigned char sounddefault; /* 40 */ - unsigned char adfsdrives; /* 41 */ - unsigned char bytes_per_char_h; /* 42 */ - unsigned char bytes_per_char_v; /* 43 */ - unsigned long pages_in_bank[4]; /* 44 */ - unsigned long pages_in_vram; /* 60 */ - unsigned long initrd_start; /* 64 */ - unsigned long initrd_size; /* 68 */ - unsigned long rd_start; /* 72 */ - unsigned long system_rev; /* 76 */ - unsigned long system_serial_low; /* 80 */ - unsigned long system_serial_high; /* 84 */ - unsigned long mem_fclk_21285; /* 88 */ - } s; - char unused[256]; - } u1; - union { - char paths[8][128]; - struct { - unsigned long magic; - char n[1024 - sizeof(unsigned long)]; - } s; - } u2; - char commandline[COMMAND_LINE_SIZE]; -}; - -static struct tag * __init memtag(struct tag *tag, unsigned long start, unsigned long size) -{ - tag = tag_next(tag); - tag->hdr.tag = ATAG_MEM; - tag->hdr.size = tag_size(tag_mem32); - tag->u.mem.size = size; - tag->u.mem.start = start; - - return tag; -} - -static void __init build_tag_list(struct param_struct *params, void *taglist) -{ - struct tag *tag = taglist; - - if (params->u1.s.page_size != PAGE_SIZE) { - printk(KERN_WARNING "Warning: bad configuration page, " - "trying to continue\n"); - return; - } - - printk(KERN_DEBUG "Converting old-style param struct to taglist\n"); - - tag->hdr.tag = ATAG_CORE; - tag->hdr.size = tag_size(tag_core); - tag->u.core.flags = params->u1.s.flags & FLAG_READONLY; - tag->u.core.pagesize = params->u1.s.page_size; - tag->u.core.rootdev = params->u1.s.rootdev; - - tag = tag_next(tag); - tag->hdr.tag = ATAG_RAMDISK; - tag->hdr.size = tag_size(tag_ramdisk); - tag->u.ramdisk.flags = (params->u1.s.flags & FLAG_RDLOAD ? 1 : 0) | - (params->u1.s.flags & FLAG_RDPROMPT ? 2 : 0); - tag->u.ramdisk.size = params->u1.s.ramdisk_size; - tag->u.ramdisk.start = params->u1.s.rd_start; - - tag = tag_next(tag); - tag->hdr.tag = ATAG_INITRD; - tag->hdr.size = tag_size(tag_initrd); - tag->u.initrd.start = params->u1.s.initrd_start; - tag->u.initrd.size = params->u1.s.initrd_size; - - tag = tag_next(tag); - tag->hdr.tag = ATAG_SERIAL; - tag->hdr.size = tag_size(tag_serialnr); - tag->u.serialnr.low = params->u1.s.system_serial_low; - tag->u.serialnr.high = params->u1.s.system_serial_high; - - tag = tag_next(tag); - tag->hdr.tag = ATAG_REVISION; - tag->hdr.size = tag_size(tag_revision); - tag->u.revision.rev = params->u1.s.system_rev; - - tag = memtag(tag, PHYS_OFFSET, params->u1.s.nr_pages * PAGE_SIZE); - - tag = tag_next(tag); - tag->hdr.tag = ATAG_ACORN; - tag->hdr.size = tag_size(tag_acorn); - tag->u.acorn.memc_control_reg = params->u1.s.memc_control_reg; - tag->u.acorn.vram_pages = params->u1.s.pages_in_vram; - tag->u.acorn.sounddefault = params->u1.s.sounddefault; - tag->u.acorn.adfsdrives = params->u1.s.adfsdrives; - - tag = tag_next(tag); - tag->hdr.tag = ATAG_CMDLINE; - tag->hdr.size = (strlen(params->commandline) + 3 + - sizeof(struct tag_header)) >> 2; - strcpy(tag->u.cmdline.cmdline, params->commandline); - - tag = tag_next(tag); - tag->hdr.tag = ATAG_NONE; - tag->hdr.size = 0; - - memmove(params, taglist, ((int)tag) - ((int)taglist) + - sizeof(struct tag_header)); -} - -void __init convert_to_tag_list(struct tag *tags) -{ - struct param_struct *params = (struct param_struct *)tags; - build_tag_list(params, ¶ms->u2); -} - -void __init squash_mem_tags(struct tag *tag) -{ - for (; tag->hdr.size; tag = tag_next(tag)) - if (tag->hdr.tag == ATAG_MEM) - tag->hdr.tag = ATAG_NONE; -} diff --git a/trunk/arch/arm26/kernel/dma.c b/trunk/arch/arm26/kernel/dma.c deleted file mode 100644 index 80b5a774d905..000000000000 --- a/trunk/arch/arm26/kernel/dma.c +++ /dev/null @@ -1,273 +0,0 @@ -/* - * linux/arch/arm26/kernel/dma.c - * - * Copyright (C) 1995-2000 Russell King - * 2003 Ian Molton - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Front-end to the DMA handling. This handles the allocation/freeing - * of DMA channels, and provides a unified interface to the machines - * DMA facilities. - */ -#include -#include -#include -#include -#include -#include -#include - -#include - -DEFINE_SPINLOCK(dma_spin_lock); - -static dma_t dma_chan[MAX_DMA_CHANNELS]; - -/* - * Get dma list for /proc/dma - */ -int get_dma_list(char *buf) -{ - dma_t *dma; - char *p = buf; - int i; - - for (i = 0, dma = dma_chan; i < MAX_DMA_CHANNELS; i++, dma++) - if (dma->lock) - p += sprintf(p, "%2d: %14s %s\n", i, - dma->d_ops->type, dma->device_id); - - return p - buf; -} - -/* - * Request DMA channel - * - * On certain platforms, we have to allocate an interrupt as well... - */ -int request_dma(dmach_t channel, const char *device_id) -{ - dma_t *dma = dma_chan + channel; - int ret; - - if (channel >= MAX_DMA_CHANNELS || !dma->d_ops) - goto bad_dma; - - if (xchg(&dma->lock, 1) != 0) - goto busy; - - dma->device_id = device_id; - dma->active = 0; - dma->invalid = 1; - - ret = 0; - if (dma->d_ops->request) - ret = dma->d_ops->request(channel, dma); - - if (ret) - xchg(&dma->lock, 0); - - return ret; - -bad_dma: - printk(KERN_ERR "dma: trying to allocate DMA%d\n", channel); - return -EINVAL; - -busy: - return -EBUSY; -} - -/* - * Free DMA channel - * - * On certain platforms, we have to free interrupt as well... - */ -void free_dma(dmach_t channel) -{ - dma_t *dma = dma_chan + channel; - - if (channel >= MAX_DMA_CHANNELS || !dma->d_ops) - goto bad_dma; - - if (dma->active) { - printk(KERN_ERR "dma%d: freeing active DMA\n", channel); - dma->d_ops->disable(channel, dma); - dma->active = 0; - } - - if (xchg(&dma->lock, 0) != 0) { - if (dma->d_ops->free) - dma->d_ops->free(channel, dma); - return; - } - - printk(KERN_ERR "dma%d: trying to free free DMA\n", channel); - return; - -bad_dma: - printk(KERN_ERR "dma: trying to free DMA%d\n", channel); -} - -/* Set DMA Scatter-Gather list - */ -void set_dma_sg (dmach_t channel, struct scatterlist *sg, int nr_sg) -{ - dma_t *dma = dma_chan + channel; - - if (dma->active) - printk(KERN_ERR "dma%d: altering DMA SG while " - "DMA active\n", channel); - - dma->sg = sg; - dma->sgcount = nr_sg; - dma->using_sg = 1; - dma->invalid = 1; -} - -/* Set DMA address - * - * Copy address to the structure, and set the invalid bit - */ -void set_dma_addr (dmach_t channel, unsigned long physaddr) -{ - dma_t *dma = dma_chan + channel; - - if (dma->active) - printk(KERN_ERR "dma%d: altering DMA address while " - "DMA active\n", channel); - - dma->sg = &dma->buf; - dma->sgcount = 1; - dma->buf.__address = (char *)physaddr;//FIXME - not pretty - dma->using_sg = 0; - dma->invalid = 1; -} - -/* Set DMA byte count - * - * Copy address to the structure, and set the invalid bit - */ -void set_dma_count (dmach_t channel, unsigned long count) -{ - dma_t *dma = dma_chan + channel; - - if (dma->active) - printk(KERN_ERR "dma%d: altering DMA count while " - "DMA active\n", channel); - - dma->sg = &dma->buf; - dma->sgcount = 1; - dma->buf.length = count; - dma->using_sg = 0; - dma->invalid = 1; -} - -/* Set DMA direction mode - */ -void set_dma_mode (dmach_t channel, dmamode_t mode) -{ - dma_t *dma = dma_chan + channel; - - if (dma->active) - printk(KERN_ERR "dma%d: altering DMA mode while " - "DMA active\n", channel); - - dma->dma_mode = mode; - dma->invalid = 1; -} - -/* Enable DMA channel - */ -void enable_dma (dmach_t channel) -{ - dma_t *dma = dma_chan + channel; - - if (!dma->lock) - goto free_dma; - - if (dma->active == 0) { - dma->active = 1; - dma->d_ops->enable(channel, dma); - } - return; - -free_dma: - printk(KERN_ERR "dma%d: trying to enable free DMA\n", channel); - BUG(); -} - -/* Disable DMA channel - */ -void disable_dma (dmach_t channel) -{ - dma_t *dma = dma_chan + channel; - - if (!dma->lock) - goto free_dma; - - if (dma->active == 1) { - dma->active = 0; - dma->d_ops->disable(channel, dma); - } - return; - -free_dma: - printk(KERN_ERR "dma%d: trying to disable free DMA\n", channel); - BUG(); -} - -/* - * Is the specified DMA channel active? - */ -int dma_channel_active(dmach_t channel) -{ - return dma_chan[channel].active; -} - -void set_dma_page(dmach_t channel, char pagenr) -{ - printk(KERN_ERR "dma%d: trying to set_dma_page\n", channel); -} - -void set_dma_speed(dmach_t channel, int cycle_ns) -{ - dma_t *dma = dma_chan + channel; - int ret = 0; - - if (dma->d_ops->setspeed) - ret = dma->d_ops->setspeed(channel, dma, cycle_ns); - dma->speed = ret; -} - -int get_dma_residue(dmach_t channel) -{ - dma_t *dma = dma_chan + channel; - int ret = 0; - - if (dma->d_ops->residue) - ret = dma->d_ops->residue(channel, dma); - - return ret; -} - -void __init init_dma(void) -{ - arch_dma_init(dma_chan); -} - -EXPORT_SYMBOL(request_dma); -EXPORT_SYMBOL(free_dma); -EXPORT_SYMBOL(enable_dma); -EXPORT_SYMBOL(disable_dma); -EXPORT_SYMBOL(set_dma_addr); -EXPORT_SYMBOL(set_dma_count); -EXPORT_SYMBOL(set_dma_mode); -EXPORT_SYMBOL(set_dma_page); -EXPORT_SYMBOL(get_dma_residue); -EXPORT_SYMBOL(set_dma_sg); -EXPORT_SYMBOL(set_dma_speed); - -EXPORT_SYMBOL(dma_spin_lock); diff --git a/trunk/arch/arm26/kernel/ecard.c b/trunk/arch/arm26/kernel/ecard.c deleted file mode 100644 index e2bcefc91cc3..000000000000 --- a/trunk/arch/arm26/kernel/ecard.c +++ /dev/null @@ -1,847 +0,0 @@ -/* - * linux/arch/arm26/kernel/ecard.c - * - * Copyright 1995-2001 Russell King - * Copyright 2003 Ian Molton - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Find all installed expansion cards, and handle interrupts from them. - * - * Created from information from Acorns RiscOS3 PRMs - * 15-Jun-2003 IM Modified from ARM32 (RiscPC capable) version - * 10-Jan-1999 RMK Run loaders in a simulated RISC OS environment. - * 06-May-1997 RMK Added blacklist for cards whose loader doesn't work. - * 12-Sep-1997 RMK Created new handling of interrupt enables/disables - * - cards can now register their own routine to control - * interrupts (recommended). - * 29-Sep-1997 RMK Expansion card interrupt hardware not being re-enabled - * on reset from Linux. (Caused cards not to respond - * under RiscOS without hard reset). - * - */ -#define ECARD_C - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include - -enum req { - req_readbytes, - req_reset -}; - -struct ecard_request { - enum req req; - ecard_t *ec; - unsigned int address; - unsigned int length; - unsigned int use_loader; - void *buffer; -}; - -struct expcard_blacklist { - unsigned short manufacturer; - unsigned short product; - const char *type; -}; - -static ecard_t *cards; -static ecard_t *slot_to_expcard[MAX_ECARDS]; -static unsigned int ectcr; - -/* List of descriptions of cards which don't have an extended - * identification, or chunk directories containing a description. - */ -static struct expcard_blacklist __initdata blacklist[] = { - { MANU_ACORN, PROD_ACORN_ETHER1, "Acorn Ether1" } -}; - -asmlinkage extern int -ecard_loader_reset(volatile unsigned char *pa, loader_t loader); -asmlinkage extern int -ecard_loader_read(int off, volatile unsigned char *pa, loader_t loader); - -static const struct ecard_id * -ecard_match_device(const struct ecard_id *ids, struct expansion_card *ec); - -static inline unsigned short -ecard_getu16(unsigned char *v) -{ - return v[0] | v[1] << 8; -} - -static inline signed long -ecard_gets24(unsigned char *v) -{ - return v[0] | v[1] << 8 | v[2] << 16 | ((v[2] & 0x80) ? 0xff000000 : 0); -} - -static inline ecard_t * -slot_to_ecard(unsigned int slot) -{ - return slot < MAX_ECARDS ? slot_to_expcard[slot] : NULL; -} - -/* ===================== Expansion card daemon ======================== */ -/* - * Since the loader programs on the expansion cards need to be run - * in a specific environment, create a separate task with this - * environment up, and pass requests to this task as and when we - * need to. - * - * This should allow 99% of loaders to be called from Linux. - * - * From a security standpoint, we trust the card vendors. This - * may be a misplaced trust. - */ -#define BUS_ADDR(x) ((((unsigned long)(x)) << 2) + IO_BASE) -#define POD_INT_ADDR(x) ((volatile unsigned char *)\ - ((BUS_ADDR((x)) - IO_BASE) + IO_START)) - -static inline void ecard_task_reset(struct ecard_request *req) -{ - struct expansion_card *ec = req->ec; - if (ec->loader) - ecard_loader_reset(POD_INT_ADDR(ec->podaddr), ec->loader); -} - -static void -ecard_task_readbytes(struct ecard_request *req) -{ - unsigned char *buf = (unsigned char *)req->buffer; - volatile unsigned char *base_addr = - (volatile unsigned char *)POD_INT_ADDR(req->ec->podaddr); - unsigned int len = req->length; - unsigned int off = req->address; - - if (!req->use_loader || !req->ec->loader) { - off *= 4; - while (len--) { - *buf++ = base_addr[off]; - off += 4; - } - } else { - while(len--) { - /* - * The following is required by some - * expansion card loader programs. - */ - *(unsigned long *)0x108 = 0; - *buf++ = ecard_loader_read(off++, base_addr, - req->ec->loader); - } - } -} - -static void ecard_do_request(struct ecard_request *req) -{ - switch (req->req) { - case req_readbytes: - ecard_task_readbytes(req); - break; - - case req_reset: - ecard_task_reset(req); - break; - } -} - -/* - * On 26-bit processors, we don't need the kcardd thread to access the - * expansion card loaders. We do it directly. - */ -#define ecard_call(req) ecard_do_request(req) - -/* ======================= Mid-level card control ===================== */ - -static void -ecard_readbytes(void *addr, ecard_t *ec, int off, int len, int useld) -{ - struct ecard_request req; - - req.req = req_readbytes; - req.ec = ec; - req.address = off; - req.length = len; - req.use_loader = useld; - req.buffer = addr; - - ecard_call(&req); -} - -int ecard_readchunk(struct in_chunk_dir *cd, ecard_t *ec, int id, int num) -{ - struct ex_chunk_dir excd; - int index = 16; - int useld = 0; - - if (!ec->cid.cd) - return 0; - - while(1) { - ecard_readbytes(&excd, ec, index, 8, useld); - index += 8; - if (c_id(&excd) == 0) { - if (!useld && ec->loader) { - useld = 1; - index = 0; - continue; - } - return 0; - } - if (c_id(&excd) == 0xf0) { /* link */ - index = c_start(&excd); - continue; - } - if (c_id(&excd) == 0x80) { /* loader */ - if (!ec->loader) { - ec->loader = kmalloc(c_len(&excd), - GFP_KERNEL); - if (ec->loader) - ecard_readbytes(ec->loader, ec, - (int)c_start(&excd), - c_len(&excd), useld); - else - return 0; - } - continue; - } - if (c_id(&excd) == id && num-- == 0) - break; - } - - if (c_id(&excd) & 0x80) { - switch (c_id(&excd) & 0x70) { - case 0x70: - ecard_readbytes((unsigned char *)excd.d.string, ec, - (int)c_start(&excd), c_len(&excd), - useld); - break; - case 0x00: - break; - } - } - cd->start_offset = c_start(&excd); - memcpy(cd->d.string, excd.d.string, 256); - return 1; -} - -/* ======================= Interrupt control ============================ */ - -static void ecard_def_irq_enable(ecard_t *ec, int irqnr) -{ -} - -static void ecard_def_irq_disable(ecard_t *ec, int irqnr) -{ -} - -static int ecard_def_irq_pending(ecard_t *ec) -{ - return !ec->irqmask || ec->irqaddr[0] & ec->irqmask; -} - -static void ecard_def_fiq_enable(ecard_t *ec, int fiqnr) -{ - panic("ecard_def_fiq_enable called - impossible"); -} - -static void ecard_def_fiq_disable(ecard_t *ec, int fiqnr) -{ - panic("ecard_def_fiq_disable called - impossible"); -} - -static int ecard_def_fiq_pending(ecard_t *ec) -{ - return !ec->fiqmask || ec->fiqaddr[0] & ec->fiqmask; -} - -static expansioncard_ops_t ecard_default_ops = { - ecard_def_irq_enable, - ecard_def_irq_disable, - ecard_def_irq_pending, - ecard_def_fiq_enable, - ecard_def_fiq_disable, - ecard_def_fiq_pending -}; - -/* - * Enable and disable interrupts from expansion cards. - * (interrupts are disabled for these functions). - * - * They are not meant to be called directly, but via enable/disable_irq. - */ -static void ecard_irq_unmask(unsigned int irqnr) -{ - ecard_t *ec = slot_to_ecard(irqnr - 32); - - if (ec) { - if (!ec->ops) - ec->ops = &ecard_default_ops; - - if (ec->claimed && ec->ops->irqenable) - ec->ops->irqenable(ec, irqnr); - else - printk(KERN_ERR "ecard: rejecting request to " - "enable IRQs for %d\n", irqnr); - } -} - -static void ecard_irq_mask(unsigned int irqnr) -{ - ecard_t *ec = slot_to_ecard(irqnr - 32); - - if (ec) { - if (!ec->ops) - ec->ops = &ecard_default_ops; - - if (ec->ops && ec->ops->irqdisable) - ec->ops->irqdisable(ec, irqnr); - } -} - -static struct irqchip ecard_chip = { - .ack = ecard_irq_mask, - .mask = ecard_irq_mask, - .unmask = ecard_irq_unmask, -}; - -void ecard_enablefiq(unsigned int fiqnr) -{ - ecard_t *ec = slot_to_ecard(fiqnr); - - if (ec) { - if (!ec->ops) - ec->ops = &ecard_default_ops; - - if (ec->claimed && ec->ops->fiqenable) - ec->ops->fiqenable(ec, fiqnr); - else - printk(KERN_ERR "ecard: rejecting request to " - "enable FIQs for %d\n", fiqnr); - } -} - -void ecard_disablefiq(unsigned int fiqnr) -{ - ecard_t *ec = slot_to_ecard(fiqnr); - - if (ec) { - if (!ec->ops) - ec->ops = &ecard_default_ops; - - if (ec->ops->fiqdisable) - ec->ops->fiqdisable(ec, fiqnr); - } -} - -static void -ecard_dump_irq_state(ecard_t *ec) -{ - printk(" %d: %sclaimed, ", - ec->slot_no, - ec->claimed ? "" : "not "); - - if (ec->ops && ec->ops->irqpending && - ec->ops != &ecard_default_ops) - printk("irq %spending\n", - ec->ops->irqpending(ec) ? "" : "not "); - else - printk("irqaddr %p, mask = %02X, status = %02X\n", - ec->irqaddr, ec->irqmask, *ec->irqaddr); -} - -static void ecard_check_lockup(struct irqdesc *desc) -{ - static int last, lockup; - ecard_t *ec; - - /* - * If the timer interrupt has not run since the last million - * unrecognised expansion card interrupts, then there is - * something seriously wrong. Disable the expansion card - * interrupts so at least we can continue. - * - * Maybe we ought to start a timer to re-enable them some time - * later? - */ - if (last == jiffies) { - lockup += 1; - if (lockup > 1000000) { - printk(KERN_ERR "\nInterrupt lockup detected - " - "disabling all expansion card interrupts\n"); - - desc->chip->mask(IRQ_EXPANSIONCARD); - - printk("Expansion card IRQ state:\n"); - - for (ec = cards; ec; ec = ec->next) - ecard_dump_irq_state(ec); - } - } else - lockup = 0; - - /* - * If we did not recognise the source of this interrupt, - * warn the user, but don't flood the user with these messages. - */ - if (!last || time_after(jiffies, (unsigned long)(last + 5*HZ))) { - last = jiffies; - printk(KERN_WARNING "Unrecognised interrupt from backplane\n"); - } -} - -static void -ecard_irq_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs) -{ - ecard_t *ec; - int called = 0; - - desc->chip->mask(irq); - for (ec = cards; ec; ec = ec->next) { - int pending; - - if (!ec->claimed || ec->irq == NO_IRQ) - continue; - - if (ec->ops && ec->ops->irqpending) - pending = ec->ops->irqpending(ec); - else - pending = ecard_default_ops.irqpending(ec); - - if (pending) { - struct irqdesc *d = irq_desc + ec->irq; - d->handle(ec->irq, d, regs); - called ++; - } - } - desc->chip->unmask(irq); - - if (called == 0) - ecard_check_lockup(desc); -} - -#define ecard_irqexp_handler NULL -#define ecard_probeirqhw() (0) - -unsigned int ecard_address(ecard_t *ec, card_type_t type, card_speed_t speed) -{ - unsigned long address = 0; - int slot = ec->slot_no; - - ectcr &= ~(1 << slot); - - switch (type) { - case ECARD_MEMC: - address = IO_EC_MEMC_BASE + (slot << 12); - break; - - case ECARD_IOC: - address = IO_EC_IOC_BASE + (slot << 12) + (speed << 17); - break; - - default: - break; - } - - return address; -} - -static int ecard_prints(char *buffer, ecard_t *ec) -{ - char *start = buffer; - - buffer += sprintf(buffer, " %d: ", ec->slot_no); - - if (ec->cid.id == 0) { - struct in_chunk_dir incd; - - buffer += sprintf(buffer, "[%04X:%04X] ", - ec->cid.manufacturer, ec->cid.product); - - if (!ec->card_desc && ec->cid.cd && - ecard_readchunk(&incd, ec, 0xf5, 0)) { - ec->card_desc = kmalloc(strlen(incd.d.string)+1, GFP_KERNEL); - - if (ec->card_desc) - strcpy((char *)ec->card_desc, incd.d.string); - } - - buffer += sprintf(buffer, "%s\n", ec->card_desc ? ec->card_desc : "*unknown*"); - } else - buffer += sprintf(buffer, "Simple card %d\n", ec->cid.id); - - return buffer - start; -} - -static int get_ecard_dev_info(char *buf, char **start, off_t pos, int count) -{ - ecard_t *ec = cards; - off_t at = 0; - int len, cnt; - - cnt = 0; - while (ec && count > cnt) { - len = ecard_prints(buf, ec); - at += len; - if (at >= pos) { - if (!*start) { - *start = buf + (pos - (at - len)); - cnt = at - pos; - } else - cnt += len; - buf += len; - } - ec = ec->next; - } - return (count > cnt) ? cnt : count; -} - -static struct proc_dir_entry *proc_bus_ecard_dir = NULL; - -static void ecard_proc_init(void) -{ - proc_bus_ecard_dir = proc_mkdir("ecard", proc_bus); - create_proc_info_entry("devices", 0, proc_bus_ecard_dir, - get_ecard_dev_info); -} - -#define ec_set_resource(ec,nr,st,sz,flg) \ - do { \ - (ec)->resource[nr].name = ec->dev.bus_id; \ - (ec)->resource[nr].start = st; \ - (ec)->resource[nr].end = (st) + (sz) - 1; \ - (ec)->resource[nr].flags = flg; \ - } while (0) - -static void __init ecard_init_resources(struct expansion_card *ec) -{ - unsigned long base = PODSLOT_IOC0_BASE; - unsigned int slot = ec->slot_no; - int i; - - ec_set_resource(ec, ECARD_RES_MEMC, - PODSLOT_MEMC_BASE + (slot << 14), - PODSLOT_MEMC_SIZE, IORESOURCE_MEM); - - for (i = 0; i < ECARD_RES_IOCSYNC - ECARD_RES_IOCSLOW; i++) { - ec_set_resource(ec, i + ECARD_RES_IOCSLOW, - base + (slot << 14) + (i << 19), - PODSLOT_IOC_SIZE, IORESOURCE_MEM); - } - - for (i = 0; i < ECARD_NUM_RESOURCES; i++) { - if (ec->resource[i].start && - request_resource(&iomem_resource, &ec->resource[i])) { - printk(KERN_ERR "%s: resource(s) not available\n", - ec->dev.bus_id); - ec->resource[i].end -= ec->resource[i].start; - ec->resource[i].start = 0; - } - } -} - -static ssize_t ecard_show_irq(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct expansion_card *ec = ECARD_DEV(dev); - return sprintf(buf, "%u\n", ec->irq); -} - -static ssize_t ecard_show_vendor(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct expansion_card *ec = ECARD_DEV(dev); - return sprintf(buf, "%u\n", ec->cid.manufacturer); -} - -static ssize_t ecard_show_device(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct expansion_card *ec = ECARD_DEV(dev); - return sprintf(buf, "%u\n", ec->cid.product); -} - -static ssize_t ecard_show_dma(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct expansion_card *ec = ECARD_DEV(dev); - return sprintf(buf, "%u\n", ec->dma); -} - -static ssize_t ecard_show_resources(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct expansion_card *ec = ECARD_DEV(dev); - char *str = buf; - int i; - - for (i = 0; i < ECARD_NUM_RESOURCES; i++) - str += sprintf(str, "%08lx %08lx %08lx\n", - ec->resource[i].start, - ec->resource[i].end, - ec->resource[i].flags); - - return str - buf; -} - -static DEVICE_ATTR(irq, S_IRUGO, ecard_show_irq, NULL); -static DEVICE_ATTR(vendor, S_IRUGO, ecard_show_vendor, NULL); -static DEVICE_ATTR(device, S_IRUGO, ecard_show_device, NULL); -static DEVICE_ATTR(dma, S_IRUGO, ecard_show_dma, NULL); -static DEVICE_ATTR(resource, S_IRUGO, ecard_show_resources, NULL); - -/* - * Probe for an expansion card. - * - * If bit 1 of the first byte of the card is set, then the - * card does not exist. - */ -static int __init -ecard_probe(int slot, card_type_t type) -{ - ecard_t **ecp; - ecard_t *ec; - struct ex_ecid cid; - int i, rc = -ENOMEM; - - ec = kzalloc(sizeof(ecard_t), GFP_KERNEL); - if (!ec) - goto nomem; - - ec->slot_no = slot; - ec->type = type; - ec->irq = NO_IRQ; - ec->fiq = NO_IRQ; - ec->dma = NO_DMA; - ec->card_desc = NULL; - ec->ops = &ecard_default_ops; - - rc = -ENODEV; - if ((ec->podaddr = ecard_address(ec, type, ECARD_SYNC)) == 0) - goto nodev; - - cid.r_zero = 1; - ecard_readbytes(&cid, ec, 0, 16, 0); - if (cid.r_zero) - goto nodev; - - ec->cid.id = cid.r_id; - ec->cid.cd = cid.r_cd; - ec->cid.is = cid.r_is; - ec->cid.w = cid.r_w; - ec->cid.manufacturer = ecard_getu16(cid.r_manu); - ec->cid.product = ecard_getu16(cid.r_prod); - ec->cid.country = cid.r_country; - ec->cid.irqmask = cid.r_irqmask; - ec->cid.irqoff = ecard_gets24(cid.r_irqoff); - ec->cid.fiqmask = cid.r_fiqmask; - ec->cid.fiqoff = ecard_gets24(cid.r_fiqoff); - ec->fiqaddr = - ec->irqaddr = (unsigned char *)ioaddr(ec->podaddr); - - if (ec->cid.is) { - ec->irqmask = ec->cid.irqmask; - ec->irqaddr += ec->cid.irqoff; - ec->fiqmask = ec->cid.fiqmask; - ec->fiqaddr += ec->cid.fiqoff; - } else { - ec->irqmask = 1; - ec->fiqmask = 4; - } - - for (i = 0; i < ARRAY_SIZE(blacklist); i++) - if (blacklist[i].manufacturer == ec->cid.manufacturer && - blacklist[i].product == ec->cid.product) { - ec->card_desc = blacklist[i].type; - break; - } - - snprintf(ec->dev.bus_id, sizeof(ec->dev.bus_id), "ecard%d", slot); - ec->dev.parent = NULL; - ec->dev.bus = &ecard_bus_type; - ec->dev.dma_mask = &ec->dma_mask; - ec->dma_mask = (u64)0xffffffff; - - ecard_init_resources(ec); - - /* - * hook the interrupt handlers - */ - ec->irq = 32 + slot; - set_irq_chip(ec->irq, &ecard_chip); - set_irq_handler(ec->irq, do_level_IRQ); - set_irq_flags(ec->irq, IRQF_VALID); - - for (ecp = &cards; *ecp; ecp = &(*ecp)->next); - - *ecp = ec; - slot_to_expcard[slot] = ec; - - device_register(&ec->dev); - device_create_file(&ec->dev, &dev_attr_dma); - device_create_file(&ec->dev, &dev_attr_irq); - device_create_file(&ec->dev, &dev_attr_resource); - device_create_file(&ec->dev, &dev_attr_vendor); - device_create_file(&ec->dev, &dev_attr_device); - - return 0; - -nodev: - kfree(ec); -nomem: - return rc; -} - -/* - * Initialise the expansion card system. - * Locate all hardware - interrupt management and - * actual cards. - */ -static int __init ecard_init(void) -{ - int slot, irqhw; - - printk("Probing expansion cards\n"); - - for (slot = 0; slot < MAX_ECARDS; slot ++) { - ecard_probe(slot, ECARD_IOC); - } - - irqhw = ecard_probeirqhw(); - - set_irq_chained_handler(IRQ_EXPANSIONCARD, - irqhw ? ecard_irqexp_handler : ecard_irq_handler); - - ecard_proc_init(); - - return 0; -} - -subsys_initcall(ecard_init); - -/* - * ECARD "bus" - */ -static const struct ecard_id * -ecard_match_device(const struct ecard_id *ids, struct expansion_card *ec) -{ - int i; - - for (i = 0; ids[i].manufacturer != 65535; i++) - if (ec->cid.manufacturer == ids[i].manufacturer && - ec->cid.product == ids[i].product) - return ids + i; - - return NULL; -} - -static int ecard_drv_probe(struct device *dev) -{ - struct expansion_card *ec = ECARD_DEV(dev); - struct ecard_driver *drv = ECARD_DRV(dev->driver); - const struct ecard_id *id; - int ret; - - id = ecard_match_device(drv->id_table, ec); - - ecard_claim(ec); - ret = drv->probe(ec, id); - if (ret) - ecard_release(ec); - return ret; -} - -static int ecard_drv_remove(struct device *dev) -{ - struct expansion_card *ec = ECARD_DEV(dev); - struct ecard_driver *drv = ECARD_DRV(dev->driver); - - drv->remove(ec); - ecard_release(ec); - - return 0; -} - -/* - * Before rebooting, we must make sure that the expansion card is in a - * sensible state, so it can be re-detected. This means that the first - * page of the ROM must be visible. We call the expansion cards reset - * handler, if any. - */ -static void ecard_drv_shutdown(struct device *dev) -{ - struct expansion_card *ec = ECARD_DEV(dev); - struct ecard_driver *drv = ECARD_DRV(dev->driver); - struct ecard_request req; - - if (drv->shutdown) - drv->shutdown(ec); - ecard_release(ec); - req.req = req_reset; - req.ec = ec; - ecard_call(&req); -} - -int ecard_register_driver(struct ecard_driver *drv) -{ - drv->drv.bus = &ecard_bus_type; - drv->drv.probe = ecard_drv_probe; - drv->drv.remove = ecard_drv_remove; - drv->drv.shutdown = ecard_drv_shutdown; - - return driver_register(&drv->drv); -} - -void ecard_remove_driver(struct ecard_driver *drv) -{ - driver_unregister(&drv->drv); -} - -static int ecard_match(struct device *_dev, struct device_driver *_drv) -{ - struct expansion_card *ec = ECARD_DEV(_dev); - struct ecard_driver *drv = ECARD_DRV(_drv); - int ret; - - if (drv->id_table) { - ret = ecard_match_device(drv->id_table, ec) != NULL; - } else { - ret = ec->cid.id == drv->id; - } - - return ret; -} - -struct bus_type ecard_bus_type = { - .name = "ecard", - .match = ecard_match, -}; - -static int ecard_bus_init(void) -{ - return bus_register(&ecard_bus_type); -} - -postcore_initcall(ecard_bus_init); - -EXPORT_SYMBOL(ecard_readchunk); -EXPORT_SYMBOL(ecard_address); -EXPORT_SYMBOL(ecard_register_driver); -EXPORT_SYMBOL(ecard_remove_driver); -EXPORT_SYMBOL(ecard_bus_type); diff --git a/trunk/arch/arm26/kernel/entry.S b/trunk/arch/arm26/kernel/entry.S deleted file mode 100644 index 91496cc687b1..000000000000 --- a/trunk/arch/arm26/kernel/entry.S +++ /dev/null @@ -1,951 +0,0 @@ -/* arch/arm26/kernel/entry.S - * - * Assembled from chunks of code in arch/arm - * - * Copyright (C) 2003 Ian Molton - * Based on the work of RMK. - * - */ - -#include - -#include -#include -#include -#include -#include -#include -#include -#include - - .macro zero_fp -#ifndef CONFIG_NO_FRAME_POINTER - mov fp, #0 -#endif - .endm - - .text - -@ Bad Abort numbers -@ ----------------- -@ -#define BAD_PREFETCH 0 -#define BAD_DATA 1 -#define BAD_ADDREXCPTN 2 -#define BAD_IRQ 3 -#define BAD_UNDEFINSTR 4 - -@ OS version number used in SWIs -@ RISC OS is 0 -@ RISC iX is 8 -@ -#define OS_NUMBER 9 -#define ARMSWI_OFFSET 0x000f0000 - -@ -@ Stack format (ensured by USER_* and SVC_*) -@ PSR and PC are comined on arm26 -@ - -#define S_OFF 8 - -#define S_OLD_R0 64 -#define S_PC 60 -#define S_LR 56 -#define S_SP 52 -#define S_IP 48 -#define S_FP 44 -#define S_R10 40 -#define S_R9 36 -#define S_R8 32 -#define S_R7 28 -#define S_R6 24 -#define S_R5 20 -#define S_R4 16 -#define S_R3 12 -#define S_R2 8 -#define S_R1 4 -#define S_R0 0 - - .macro save_user_regs - str r0, [sp, #-4]! @ Store SVC r0 - str lr, [sp, #-4]! @ Store user mode PC - sub sp, sp, #15*4 - stmia sp, {r0 - lr}^ @ Store the other user-mode regs - mov r0, r0 - .endm - - .macro slow_restore_user_regs - ldmia sp, {r0 - lr}^ @ restore the user regs not including PC - mov r0, r0 - ldr lr, [sp, #15*4] @ get user PC - add sp, sp, #15*4+8 @ free stack - movs pc, lr @ return - .endm - - .macro fast_restore_user_regs - add sp, sp, #S_OFF - ldmib sp, {r1 - lr}^ - mov r0, r0 - ldr lr, [sp, #15*4] - add sp, sp, #15*4+8 - movs pc, lr - .endm - - .macro save_svc_regs - str sp, [sp, #-16]! - str lr, [sp, #8] - str lr, [sp, #4] - stmfd sp!, {r0 - r12} - mov r0, #-1 - str r0, [sp, #S_OLD_R0] - zero_fp - .endm - - .macro save_svc_regs_irq - str sp, [sp, #-16]! - str lr, [sp, #4] - ldr lr, .LCirq - ldr lr, [lr] - str lr, [sp, #8] - stmfd sp!, {r0 - r12} - mov r0, #-1 - str r0, [sp, #S_OLD_R0] - zero_fp - .endm - - .macro restore_svc_regs - ldmfd sp, {r0 - pc}^ - .endm - - .macro mask_pc, rd, rm - bic \rd, \rm, #PCMASK - .endm - - .macro disable_irqs, temp - mov \temp, pc - orr \temp, \temp, #PSR_I_BIT - teqp \temp, #0 - .endm - - .macro enable_irqs, temp - mov \temp, pc - and \temp, \temp, #~PSR_I_BIT - teqp \temp, #0 - .endm - - .macro initialise_traps_extra - .endm - - .macro get_thread_info, rd - mov \rd, sp, lsr #13 - mov \rd, \rd, lsl #13 - .endm - -/* - * These are the registers used in the syscall handler, and allow us to - * have in theory up to 7 arguments to a function - r0 to r6. - * - * Note that tbl == why is intentional. - * - * We must set at least "tsk" and "why" when calling ret_with_reschedule. - */ -scno .req r7 @ syscall number -tbl .req r8 @ syscall table pointer -why .req r8 @ Linux syscall (!= 0) -tsk .req r9 @ current thread_info - -/* - * Get the system call number. - */ - .macro get_scno - mask_pc lr, lr - ldr scno, [lr, #-4] @ get SWI instruction - .endm -/* - * ----------------------------------------------------------------------- - */ - -/* - * We rely on the fact that R0 is at the bottom of the stack (due to - * slow/fast restore user regs). - */ -#if S_R0 != 0 -#error "Please fix" -#endif - -/* - * This is the fast syscall return path. We do as little as - * possible here, and this includes saving r0 back into the SVC - * stack. - */ -ret_fast_syscall: - disable_irqs r1 @ disable interrupts - ldr r1, [tsk, #TI_FLAGS] - tst r1, #_TIF_WORK_MASK - bne fast_work_pending - fast_restore_user_regs - -/* - * Ok, we need to do extra processing, enter the slow path. - */ -fast_work_pending: - str r0, [sp, #S_R0+S_OFF]! @ returned r0 -work_pending: - tst r1, #_TIF_NEED_RESCHED - bne work_resched - tst r1, #_TIF_NOTIFY_RESUME | _TIF_SIGPENDING - beq no_work_pending - mov r0, sp @ 'regs' - mov r2, why @ 'syscall' - bl do_notify_resume - disable_irqs r1 @ disable interrupts - b no_work_pending - -work_resched: - bl schedule -/* - * "slow" syscall return path. "why" tells us if this was a real syscall. - */ -ENTRY(ret_to_user) -ret_slow_syscall: - disable_irqs r1 @ disable interrupts - ldr r1, [tsk, #TI_FLAGS] - tst r1, #_TIF_WORK_MASK - bne work_pending -no_work_pending: - slow_restore_user_regs - -/* - * This is how we return from a fork. - */ -ENTRY(ret_from_fork) - bl schedule_tail - get_thread_info tsk - ldr r1, [tsk, #TI_FLAGS] @ check for syscall tracing - mov why, #1 - tst r1, #_TIF_SYSCALL_TRACE @ are we tracing syscalls? - beq ret_slow_syscall - mov r1, sp - mov r0, #1 @ trace exit [IP = 1] - bl syscall_trace - b ret_slow_syscall - -// FIXME - is this strictly necessary? -#include "calls.S" - -/*============================================================================= - * SWI handler - *----------------------------------------------------------------------------- - */ - - .align 5 -ENTRY(vector_swi) - save_user_regs - zero_fp - get_scno - - enable_irqs ip - - str r4, [sp, #-S_OFF]! @ push fifth arg - - get_thread_info tsk - ldr ip, [tsk, #TI_FLAGS] @ check for syscall tracing - bic scno, scno, #0xff000000 @ mask off SWI op-code - eor scno, scno, #OS_NUMBER << 20 @ check OS number - adr tbl, sys_call_table @ load syscall table pointer - tst ip, #_TIF_SYSCALL_TRACE @ are we tracing syscalls? - bne __sys_trace - - adral lr, ret_fast_syscall @ set return address - orral lr, lr, #PSR_I_BIT | MODE_SVC26 @ Force SVC mode on return - cmp scno, #NR_syscalls @ check upper syscall limit - ldrcc pc, [tbl, scno, lsl #2] @ call sys_* routine - - add r1, sp, #S_OFF -2: mov why, #0 @ no longer a real syscall - cmp scno, #ARMSWI_OFFSET - eor r0, scno, #OS_NUMBER << 20 @ put OS number back - bcs arm_syscall - b sys_ni_syscall @ not private func - - /* - * This is the really slow path. We're going to be doing - * context switches, and waiting for our parent to respond. - */ -__sys_trace: - add r1, sp, #S_OFF - mov r0, #0 @ trace entry [IP = 0] - bl syscall_trace - - adral lr, __sys_trace_return @ set return address - orral lr, lr, #PSR_I_BIT | MODE_SVC26 @ Force SVC mode on return - add r1, sp, #S_R0 + S_OFF @ pointer to regs - cmp scno, #NR_syscalls @ check upper syscall limit - ldmccia r1, {r0 - r3} @ have to reload r0 - r3 - ldrcc pc, [tbl, scno, lsl #2] @ call sys_* routine - b 2b - -__sys_trace_return: - str r0, [sp, #S_R0 + S_OFF]! @ save returned r0 - mov r1, sp - mov r0, #1 @ trace exit [IP = 1] - bl syscall_trace - b ret_slow_syscall - - .align 5 - - .type sys_call_table, #object -ENTRY(sys_call_table) -#include "calls.S" - -/*============================================================================ - * Special system call wrappers - */ -@ r0 = syscall number -@ r5 = syscall table - .type sys_syscall, #function -sys_syscall: - eor scno, r0, #OS_NUMBER << 20 - cmp scno, #NR_syscalls @ check range - stmleia sp, {r5, r6} @ shuffle args - movle r0, r1 - movle r1, r2 - movle r2, r3 - movle r3, r4 - ldrle pc, [tbl, scno, lsl #2] - b sys_ni_syscall - -sys_fork_wrapper: - add r0, sp, #S_OFF - b sys_fork - -sys_vfork_wrapper: - add r0, sp, #S_OFF - b sys_vfork - -sys_execve_wrapper: - add r3, sp, #S_OFF - b sys_execve - -sys_clone_wapper: - add r2, sp, #S_OFF - b sys_clone - -sys_sigsuspend_wrapper: - add r3, sp, #S_OFF - b sys_sigsuspend - -sys_rt_sigsuspend_wrapper: - add r2, sp, #S_OFF - b sys_rt_sigsuspend - -sys_sigreturn_wrapper: - add r0, sp, #S_OFF - b sys_sigreturn - -sys_rt_sigreturn_wrapper: - add r0, sp, #S_OFF - b sys_rt_sigreturn - -sys_sigaltstack_wrapper: - ldr r2, [sp, #S_OFF + S_SP] - b do_sigaltstack - -/* - * Note: off_4k (r5) is always units of 4K. If we can't do the requested - * offset, we return EINVAL. FIXME - this lost some stuff from arm32 to - * ifdefs. check it out. - */ -sys_mmap2: - tst r5, #((1 << (PAGE_SHIFT - 12)) - 1) - moveq r5, r5, lsr #PAGE_SHIFT - 12 - streq r5, [sp, #4] - beq do_mmap2 - mov r0, #-EINVAL - RETINSTR(mov,pc, lr) - -/* - * Design issues: - * - We have several modes that each vector can be called from, - * each with its own set of registers. On entry to any vector, - * we *must* save the registers used in *that* mode. - * - * - This code must be as fast as possible. - * - * There are a few restrictions on the vectors: - * - the SWI vector cannot be called from *any* non-user mode - * - * - the FP emulator is *never* called from *any* non-user mode undefined - * instruction. - * - */ - - .text - - .macro handle_irq -1: mov r4, #IOC_BASE - ldrb r6, [r4, #0x24] @ get high priority first - adr r5, irq_prio_h - teq r6, #0 - ldreqb r6, [r4, #0x14] @ get low priority - adreq r5, irq_prio_l - - teq r6, #0 @ If an IRQ happened... - ldrneb r0, [r5, r6] @ get IRQ number - movne r1, sp @ get struct pt_regs - adrne lr, 1b @ Set return address to 1b - orrne lr, lr, #PSR_I_BIT | MODE_SVC26 @ (and force SVC mode) - bne asm_do_IRQ @ process IRQ (if asserted) - .endm - - -/* - * Interrupt table (incorporates priority) - */ - .macro irq_prio_table -irq_prio_l: .byte 0, 0, 1, 0, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3 - .byte 4, 0, 1, 0, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3 - .byte 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 - .byte 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 - .byte 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3 - .byte 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3 - .byte 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 - .byte 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 - .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 - .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 - .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 - .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 - .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 - .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 - .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 - .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 -irq_prio_h: .byte 0, 8, 9, 8,10,10,10,10,11,11,11,11,10,10,10,10 - .byte 12, 8, 9, 8,10,10,10,10,11,11,11,11,10,10,10,10 - .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 - .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 - .byte 14,14,14,14,10,10,10,10,11,11,11,11,10,10,10,10 - .byte 14,14,14,14,10,10,10,10,11,11,11,11,10,10,10,10 - .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 - .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 - .byte 15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10 - .byte 15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10 - .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 - .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 - .byte 15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10 - .byte 15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10 - .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 - .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 - .endm - -#if 1 -/* - * Uncomment these if you wish to get more debugging into about data aborts. - * FIXME - I bet we can find a way to encode these and keep performance. - */ -#define FAULT_CODE_LDRSTRPOST 0x80 -#define FAULT_CODE_LDRSTRPRE 0x40 -#define FAULT_CODE_LDRSTRREG 0x20 -#define FAULT_CODE_LDMSTM 0x10 -#define FAULT_CODE_LDCSTC 0x08 -#endif -#define FAULT_CODE_PREFETCH 0x04 -#define FAULT_CODE_WRITE 0x02 -#define FAULT_CODE_FORCECOW 0x01 - -/*============================================================================= - * Undefined FIQs - *----------------------------------------------------------------------------- - */ -_unexp_fiq: ldr sp, .LCfiq - mov r12, #IOC_BASE - strb r12, [r12, #0x38] @ Disable FIQ register - teqp pc, #PSR_I_BIT | PSR_F_BIT | MODE_SVC26 - mov r0, r0 - stmfd sp!, {r0 - r3, ip, lr} - adr r0, Lfiqmsg - bl printk - ldmfd sp!, {r0 - r3, ip, lr} - teqp pc, #PSR_I_BIT | PSR_F_BIT | MODE_FIQ26 - mov r0, r0 - movs pc, lr - -Lfiqmsg: .ascii "*** Unexpected FIQ\n\0" - .align - -.LCfiq: .word __temp_fiq -.LCirq: .word __temp_irq - -/*============================================================================= - * Undefined instruction handler - *----------------------------------------------------------------------------- - * Handles floating point instructions - */ -vector_undefinstr: - tst lr, #MODE_SVC26 @ did we come from a non-user mode? - bne __und_svc @ yes - deal with it. -/* Otherwise, fall through for the user-space (common) case. */ - save_user_regs - zero_fp @ zero frame pointer - teqp pc, #PSR_I_BIT | MODE_SVC26 @ disable IRQs -.Lbug_undef: - ldr r4, .LC2 - ldr pc, [r4] @ Call FP module entry point -/* FIXME - should we trap for a null pointer here? */ - -/* The SVC mode case */ -__und_svc: save_svc_regs @ Non-user mode - mask_pc r0, lr - and r2, lr, #3 - sub r0, r0, #4 - mov r1, sp - bl do_undefinstr - restore_svc_regs - -/* We get here if the FP emulator doesnt handle the undef instr. - * If the insn WAS handled, the emulator jumps to ret_from_exception by itself/ - */ - .globl fpundefinstr -fpundefinstr: - mov r0, lr - mov r1, sp - teqp pc, #MODE_SVC26 - bl do_undefinstr - b ret_from_exception @ Normal FP exit - -#if defined CONFIG_FPE_NWFPE || defined CONFIG_FPE_FASTFPE - /* The FPE is always present */ - .equ fpe_not_present, 0 -#else -/* We get here if an undefined instruction happens and the floating - * point emulator is not present. If the offending instruction was - * a WFS, we just perform a normal return as if we had emulated the - * operation. This is a hack to allow some basic userland binaries - * to run so that the emulator module proper can be loaded. --philb - * FIXME - probably a broken useless hack... - */ -fpe_not_present: - adr r10, wfs_mask_data - ldmia r10, {r4, r5, r6, r7, r8} - ldr r10, [sp, #S_PC] @ Load PC - sub r10, r10, #4 - mask_pc r10, r10 - ldrt r10, [r10] @ get instruction - and r5, r10, r5 - teq r5, r4 @ Is it WFS? - beq ret_from_exception - and r5, r10, r8 - teq r5, r6 @ Is it LDF/STF on sp or fp? - teqne r5, r7 - bne fpundefinstr - tst r10, #0x00200000 @ Does it have WB - beq ret_from_exception - and r4, r10, #255 @ get offset - and r6, r10, #0x000f0000 - tst r10, #0x00800000 @ +/- - ldr r5, [sp, r6, lsr #14] @ Load reg - rsbeq r4, r4, #0 - add r5, r5, r4, lsl #2 - str r5, [sp, r6, lsr #14] @ Save reg - b ret_from_exception - -wfs_mask_data: .word 0x0e200110 @ WFS/RFS - .word 0x0fef0fff - .word 0x0d0d0100 @ LDF [sp]/STF [sp] - .word 0x0d0b0100 @ LDF [fp]/STF [fp] - .word 0x0f0f0f00 -#endif - -.LC2: .word fp_enter - -/*============================================================================= - * Prefetch abort handler - *----------------------------------------------------------------------------- - */ -#define DEBUG_UNDEF -/* remember: lr = USR pc */ -vector_prefetch: - sub lr, lr, #4 - tst lr, #MODE_SVC26 - bne __pabt_invalid - save_user_regs - teqp pc, #MODE_SVC26 @ Enable IRQs... - mask_pc r0, lr @ Address of abort - mov r1, sp @ Tasks registers - bl do_PrefetchAbort - teq r0, #0 @ If non-zero, we believe this abort.. - bne ret_from_exception -#ifdef DEBUG_UNDEF - adr r0, t - bl printk -#endif - ldr lr, [sp,#S_PC] @ FIXME program to test this on. I think its - b .Lbug_undef @ broken at the moment though!) - -__pabt_invalid: save_svc_regs - mov r0, sp @ Prefetch aborts are definitely *not* - mov r1, #BAD_PREFETCH @ allowed in non-user modes. We cant - and r2, lr, #3 @ recover from this problem. - b bad_mode - -#ifdef DEBUG_UNDEF -t: .ascii "*** undef ***\r\n\0" - .align -#endif - -/*============================================================================= - * Address exception handler - *----------------------------------------------------------------------------- - * These aren't too critical. - * (they're not supposed to happen). - * In order to debug the reason for address exceptions in non-user modes, - * we have to obtain all the registers so that we can see what's going on. - */ - -vector_addrexcptn: - sub lr, lr, #8 - tst lr, #3 - bne Laddrexcptn_not_user - save_user_regs - teq pc, #MODE_SVC26 - mask_pc r0, lr @ Point to instruction - mov r1, sp @ Point to registers - mov r2, #0x400 - mov lr, pc - bl do_excpt - b ret_from_exception - -Laddrexcptn_not_user: - save_svc_regs - and r2, lr, #3 - teq r2, #3 - bne Laddrexcptn_illegal_mode - teqp pc, #MODE_SVC26 - mask_pc r0, lr - mov r1, sp - orr r2, r2, #0x400 - bl do_excpt - ldmia sp, {r0 - lr} @ I cant remember the reason I changed this... - add sp, sp, #15*4 - movs pc, lr - -Laddrexcptn_illegal_mode: - mov r0, sp - str lr, [sp, #-4]! - orr r1, r2, #PSR_I_BIT | PSR_F_BIT - teqp r1, #0 @ change into mode (wont be user mode) - mov r0, r0 - mov r1, r8 @ Any register from r8 - r14 can be banked - mov r2, r9 - mov r3, r10 - mov r4, r11 - mov r5, r12 - mov r6, r13 - mov r7, r14 - teqp pc, #PSR_F_BIT | MODE_SVC26 @ back to svc - mov r0, r0 - stmfd sp!, {r1-r7} - ldmia r0, {r0-r7} - stmfd sp!, {r0-r7} - mov r0, sp - mov r1, #BAD_ADDREXCPTN - b bad_mode - -/*============================================================================= - * Interrupt (IRQ) handler - *----------------------------------------------------------------------------- - * Note: if the IRQ was taken whilst in user mode, then *no* kernel routine - * is running, so do not have to save svc lr. - * - * Entered in IRQ mode. - */ - -vector_IRQ: ldr sp, .LCirq @ Setup some temporary stack - sub lr, lr, #4 - str lr, [sp] @ push return address - - tst lr, #3 - bne __irq_non_usr - -__irq_usr: teqp pc, #PSR_I_BIT | MODE_SVC26 @ Enter SVC mode - mov r0, r0 - - ldr lr, .LCirq - ldr lr, [lr] @ Restore lr for jump back to USR - - save_user_regs - - handle_irq - - mov why, #0 - get_thread_info tsk - b ret_to_user - -@ Place the IRQ priority table here so that the handle_irq macros above -@ and below here can access it. - - irq_prio_table - -__irq_non_usr: teqp pc, #PSR_I_BIT | MODE_SVC26 @ Enter SVC mode - mov r0, r0 - - save_svc_regs_irq - - and r2, lr, #3 - teq r2, #3 - bne __irq_invalid @ IRQ not from SVC mode - - handle_irq - - restore_svc_regs - -__irq_invalid: mov r0, sp - mov r1, #BAD_IRQ - b bad_mode - -/*============================================================================= - * Data abort handler code - *----------------------------------------------------------------------------- - * - * This handles both exceptions from user and SVC modes, computes the address - * range of the problem, and does any correction that is required. It then - * calls the kernel data abort routine. - * - * This is where I wish that the ARM would tell you which address aborted. - */ - -vector_data: sub lr, lr, #8 @ Correct lr - tst lr, #3 - bne Ldata_not_user - save_user_regs - teqp pc, #MODE_SVC26 - mask_pc r0, lr - bl Ldata_do - b ret_from_exception - -Ldata_not_user: - save_svc_regs - and r2, lr, #3 - teq r2, #3 - bne Ldata_illegal_mode - tst lr, #PSR_I_BIT - teqeqp pc, #MODE_SVC26 - mask_pc r0, lr - bl Ldata_do - restore_svc_regs - -Ldata_illegal_mode: - mov r0, sp - mov r1, #BAD_DATA - b bad_mode - -Ldata_do: mov r3, sp - ldr r4, [r0] @ Get instruction - mov r2, #0 - tst r4, #1 << 20 @ Check to see if it is a write instruction - orreq r2, r2, #FAULT_CODE_WRITE @ Indicate write instruction - mov r1, r4, lsr #22 @ Now branch to the relevent processing routine - and r1, r1, #15 << 2 - add pc, pc, r1 - movs pc, lr - b Ldata_unknown - b Ldata_unknown - b Ldata_unknown - b Ldata_unknown - b Ldata_ldrstr_post @ ldr rd, [rn], #m - b Ldata_ldrstr_numindex @ ldr rd, [rn, #m] @ RegVal - b Ldata_ldrstr_post @ ldr rd, [rn], rm - b Ldata_ldrstr_regindex @ ldr rd, [rn, rm] - b Ldata_ldmstm @ ldm*a rn, - b Ldata_ldmstm @ ldm*b rn, - b Ldata_unknown - b Ldata_unknown - b Ldata_ldrstr_post @ ldc rd, [rn], #m @ Same as ldr rd, [rn], #m - b Ldata_ldcstc_pre @ ldc rd, [rn, #m] - b Ldata_unknown -Ldata_unknown: @ Part of jumptable - mov r0, r1 - mov r1, r4 - mov r2, r3 - b baddataabort - -Ldata_ldrstr_post: - mov r0, r4, lsr #14 @ Get Rn - and r0, r0, #15 << 2 @ Mask out reg. - teq r0, #15 << 2 - ldr r0, [r3, r0] @ Get register - biceq r0, r0, #PCMASK - mov r1, r0 -#ifdef FAULT_CODE_LDRSTRPOST - orr r2, r2, #FAULT_CODE_LDRSTRPOST -#endif - b do_DataAbort - -Ldata_ldrstr_numindex: - mov r0, r4, lsr #14 @ Get Rn - and r0, r0, #15 << 2 @ Mask out reg. - teq r0, #15 << 2 - ldr r0, [r3, r0] @ Get register - mov r1, r4, lsl #20 - biceq r0, r0, #PCMASK - tst r4, #1 << 23 - addne r0, r0, r1, lsr #20 - subeq r0, r0, r1, lsr #20 - mov r1, r0 -#ifdef FAULT_CODE_LDRSTRPRE - orr r2, r2, #FAULT_CODE_LDRSTRPRE -#endif - b do_DataAbort - -Ldata_ldrstr_regindex: - mov r0, r4, lsr #14 @ Get Rn - and r0, r0, #15 << 2 @ Mask out reg. - teq r0, #15 << 2 - ldr r0, [r3, r0] @ Get register - and r7, r4, #15 - biceq r0, r0, #PCMASK - teq r7, #15 @ Check for PC - ldr r7, [r3, r7, lsl #2] @ Get Rm - and r8, r4, #0x60 @ Get shift types - biceq r7, r7, #PCMASK - mov r9, r4, lsr #7 @ Get shift amount - and r9, r9, #31 - teq r8, #0 - moveq r7, r7, lsl r9 - teq r8, #0x20 @ LSR shift - moveq r7, r7, lsr r9 - teq r8, #0x40 @ ASR shift - moveq r7, r7, asr r9 - teq r8, #0x60 @ ROR shift - moveq r7, r7, ror r9 - tst r4, #1 << 23 - addne r0, r0, r7 - subeq r0, r0, r7 @ Apply correction - mov r1, r0 -#ifdef FAULT_CODE_LDRSTRREG - orr r2, r2, #FAULT_CODE_LDRSTRREG -#endif - b do_DataAbort - -Ldata_ldmstm: - mov r7, #0x11 - orr r7, r7, r7, lsl #8 - and r0, r4, r7 - and r1, r4, r7, lsl #1 - add r0, r0, r1, lsr #1 - and r1, r4, r7, lsl #2 - add r0, r0, r1, lsr #2 - and r1, r4, r7, lsl #3 - add r0, r0, r1, lsr #3 - add r0, r0, r0, lsr #8 - add r0, r0, r0, lsr #4 - and r7, r0, #15 @ r7 = no. of registers to transfer. - mov r5, r4, lsr #14 @ Get Rn - and r5, r5, #15 << 2 - ldr r0, [r3, r5] @ Get reg - eor r6, r4, r4, lsl #2 - tst r6, #1 << 23 @ Check inc/dec ^ writeback - rsbeq r7, r7, #0 - add r7, r0, r7, lsl #2 @ Do correction (signed) - subne r1, r7, #1 - subeq r1, r0, #1 - moveq r0, r7 - tst r4, #1 << 21 @ Check writeback - strne r7, [r3, r5] - eor r6, r4, r4, lsl #1 - tst r6, #1 << 24 @ Check Pre/Post ^ inc/dec - addeq r0, r0, #4 - addeq r1, r1, #4 - teq r5, #15*4 @ CHECK FOR PC - biceq r1, r1, #PCMASK - biceq r0, r0, #PCMASK -#ifdef FAULT_CODE_LDMSTM - orr r2, r2, #FAULT_CODE_LDMSTM -#endif - b do_DataAbort - -Ldata_ldcstc_pre: - mov r0, r4, lsr #14 @ Get Rn - and r0, r0, #15 << 2 @ Mask out reg. - teq r0, #15 << 2 - ldr r0, [r3, r0] @ Get register - mov r1, r4, lsl #24 @ Get offset - biceq r0, r0, #PCMASK - tst r4, #1 << 23 - addne r0, r0, r1, lsr #24 - subeq r0, r0, r1, lsr #24 - mov r1, r0 -#ifdef FAULT_CODE_LDCSTC - orr r2, r2, #FAULT_CODE_LDCSTC -#endif - b do_DataAbort - - -/* - * This is the return code to user mode for abort handlers - */ -ENTRY(ret_from_exception) - get_thread_info tsk - mov why, #0 - b ret_to_user - - .data -ENTRY(fp_enter) - .word fpe_not_present - .text -/* - * Register switch for older 26-bit only ARMs - */ -ENTRY(__switch_to) - add r0, r0, #TI_CPU_SAVE - stmia r0, {r4 - sl, fp, sp, lr} - add r1, r1, #TI_CPU_SAVE - ldmia r1, {r4 - sl, fp, sp, pc}^ - -/* - *============================================================================= - * Low-level interface code - *----------------------------------------------------------------------------- - * Trap initialisation - *----------------------------------------------------------------------------- - * - * Note - FIQ code has changed. The default is a couple of words in 0x1c, 0x20 - * that call _unexp_fiq. Nowever, we now copy the FIQ routine to 0x1c (removes - * some excess cycles). - * - * What we need to put into 0-0x1c are branches to branch to the kernel. - */ - - .section ".init.text",#alloc,#execinstr - -.Ljump_addresses: - swi SYS_ERROR0 - .word vector_undefinstr - 12 - .word vector_swi - 16 - .word vector_prefetch - 20 - .word vector_data - 24 - .word vector_addrexcptn - 28 - .word vector_IRQ - 32 - .word _unexp_fiq - 36 - b . + 8 -/* - * initialise the trap system - */ -ENTRY(__trap_init) - stmfd sp!, {r4 - r7, lr} - adr r1, .Ljump_addresses - ldmia r1, {r1 - r7, ip, lr} - orr r2, lr, r2, lsr #2 - orr r3, lr, r3, lsr #2 - orr r4, lr, r4, lsr #2 - orr r5, lr, r5, lsr #2 - orr r6, lr, r6, lsr #2 - orr r7, lr, r7, lsr #2 - orr ip, lr, ip, lsr #2 - mov r0, #0 - stmia r0, {r1 - r7, ip} - ldmfd sp!, {r4 - r7, pc}^ - - .bss -__temp_irq: .space 4 @ saved lr_irq -__temp_fiq: .space 128 diff --git a/trunk/arch/arm26/kernel/fiq.c b/trunk/arch/arm26/kernel/fiq.c deleted file mode 100644 index c4776c96be6b..000000000000 --- a/trunk/arch/arm26/kernel/fiq.c +++ /dev/null @@ -1,201 +0,0 @@ -/* - * linux/arch/arm26/kernel/fiq.c - * - * Copyright (C) 1998 Russell King - * Copyright (C) 1998, 1999 Phil Blundell - * Copyright (C) 2003 Ian Molton - * - * FIQ support written by Philip Blundell , 1998. - * - * FIQ support re-written by Russell King to be more generic - * - * We now properly support a method by which the FIQ handlers can - * be stacked onto the vector. We still do not support sharing - * the FIQ vector itself. - * - * Operation is as follows: - * 1. Owner A claims FIQ: - * - default_fiq relinquishes control. - * 2. Owner A: - * - inserts code. - * - sets any registers, - * - enables FIQ. - * 3. Owner B claims FIQ: - * - if owner A has a relinquish function. - * - disable FIQs. - * - saves any registers. - * - returns zero. - * 4. Owner B: - * - inserts code. - * - sets any registers, - * - enables FIQ. - * 5. Owner B releases FIQ: - * - Owner A is asked to reacquire FIQ: - * - inserts code. - * - restores saved registers. - * - enables FIQ. - * 6. Goto 3 - */ -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -#define FIQ_VECTOR (vectors_base() + 0x1c) - -static unsigned long no_fiq_insn; - -#define unprotect_page_0() -#define protect_page_0() - -/* Default reacquire function - * - we always relinquish FIQ control - * - we always reacquire FIQ control - */ -static int fiq_def_op(void *ref, int relinquish) -{ - if (!relinquish) { - unprotect_page_0(); - *(unsigned long *)FIQ_VECTOR = no_fiq_insn; - protect_page_0(); - } - - return 0; -} - -static struct fiq_handler default_owner = { - .name = "default", - .fiq_op = fiq_def_op, -}; - -static struct fiq_handler *current_fiq = &default_owner; - -int show_fiq_list(struct seq_file *p, void *v) -{ - if (current_fiq != &default_owner) - seq_printf(p, "FIQ: %s\n", current_fiq->name); - - return 0; -} - -void set_fiq_handler(void *start, unsigned int length) -{ - unprotect_page_0(); - - memcpy((void *)FIQ_VECTOR, start, length); - - protect_page_0(); -} - -/* - * Taking an interrupt in FIQ mode is death, so both these functions - * disable irqs for the duration. - */ -void set_fiq_regs(struct pt_regs *regs) -{ - register unsigned long tmp, tmp2; - __asm__ volatile ( - "mov %0, pc \n" - "bic %1, %0, #0x3 \n" - "orr %1, %1, %3 \n" - "teqp %1, #0 @ select FIQ mode \n" - "mov r0, r0 \n" - "ldmia %2, {r8 - r14} \n" - "teqp %0, #0 @ return to SVC mode \n" - "mov r0, r0 " - : "=&r" (tmp), "=&r" (tmp2) - : "r" (®s->ARM_r8), "I" (PSR_I_BIT | PSR_F_BIT | MODE_FIQ26) - /* These registers aren't modified by the above code in a way - visible to the compiler, but we mark them as clobbers anyway - so that GCC won't put any of the input or output operands in - them. */ - : "r8", "r9", "r10", "r11", "r12", "r13", "r14"); -} - -void get_fiq_regs(struct pt_regs *regs) -{ - register unsigned long tmp, tmp2; - __asm__ volatile ( - "mov %0, pc \n" - "bic %1, %0, #0x3 \n" - "orr %1, %1, %3 \n" - "teqp %1, #0 @ select FIQ mode \n" - "mov r0, r0 \n" - "stmia %2, {r8 - r14} \n" - "teqp %0, #0 @ return to SVC mode \n" - "mov r0, r0 " - : "=&r" (tmp), "=&r" (tmp2) - : "r" (®s->ARM_r8), "I" (PSR_I_BIT | PSR_F_BIT | MODE_FIQ26) - /* These registers aren't modified by the above code in a way - visible to the compiler, but we mark them as clobbers anyway - so that GCC won't put any of the input or output operands in - them. */ - : "r8", "r9", "r10", "r11", "r12", "r13", "r14"); -} - -int claim_fiq(struct fiq_handler *f) -{ - int ret = 0; - - if (current_fiq) { - ret = -EBUSY; - - if (current_fiq->fiq_op != NULL) - ret = current_fiq->fiq_op(current_fiq->dev_id, 1); - } - - if (!ret) { - f->next = current_fiq; - current_fiq = f; - } - - return ret; -} - -void release_fiq(struct fiq_handler *f) -{ - if (current_fiq != f) { - printk(KERN_ERR "%s FIQ trying to release %s FIQ\n", - f->name, current_fiq->name); -#ifdef CONFIG_DEBUG_ERRORS - __backtrace(); -#endif - return; - } - - do - current_fiq = current_fiq->next; - while (current_fiq->fiq_op(current_fiq->dev_id, 0)); -} - -void enable_fiq(int fiq) -{ - enable_irq(fiq + FIQ_START); -} - -void disable_fiq(int fiq) -{ - disable_irq(fiq + FIQ_START); -} - -EXPORT_SYMBOL(set_fiq_handler); -EXPORT_SYMBOL(set_fiq_regs); -EXPORT_SYMBOL(get_fiq_regs); -EXPORT_SYMBOL(claim_fiq); -EXPORT_SYMBOL(release_fiq); -EXPORT_SYMBOL(enable_fiq); -EXPORT_SYMBOL(disable_fiq); - -void __init init_FIQ(void) -{ - no_fiq_insn = *(unsigned long *)FIQ_VECTOR; - set_fs(get_fs()); -} diff --git a/trunk/arch/arm26/kernel/head.S b/trunk/arch/arm26/kernel/head.S deleted file mode 100644 index 93575e0e58fe..000000000000 --- a/trunk/arch/arm26/kernel/head.S +++ /dev/null @@ -1,112 +0,0 @@ -/* - * linux/arch/arm26/kernel/head.S - * - * Copyright (C) 1994-2000 Russell King - * Copyright (C) 2003 Ian Molton - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * 26-bit kernel startup code - */ -#include -#include - - .globl swapper_pg_dir - .equ swapper_pg_dir, 0x0207d000 - -/* - * Entry point. - */ - .section ".init.text",#alloc,#execinstr -ENTRY(stext) - -__entry: - cmp pc, #0x02000000 - ldrlt pc, LC0 @ if 0x01800000, call at 0x02080000 - teq r0, #0 @ Check for old calling method - blne oldparams @ Move page if old - - adr r0, LC0 - ldmib r0, {r2-r5, sp} @ Setup stack (and fetch other values) - - mov r0, #0 @ Clear BSS -1: cmp r2, r3 - strcc r0, [r2], #4 - bcc 1b - - bl detect_proc_type - str r0, [r4] - bl detect_arch_type - str r0, [r5] - -#ifdef CONFIG_XIP_KERNEL - ldr r3, ETEXT @ data section copy - ldr r4, SDATA - ldr r5, EDATA -1: - ldr r6, [r3], #4 - str r6, [r4], #4 - cmp r4, r5 - blt 1b -#endif - mov fp, #0 - b start_kernel - -LC0: .word _stext - .word __bss_start @ r2 - .word _end @ r3 - .word processor_id @ r4 - .word __machine_arch_type @ r5 - .word init_thread_union+8192 @ sp -#ifdef CONFIG_XIP_KERNEL -ETEXT: .word _endtext -SDATA: .word _sdata -EDATA: .word __bss_start -#endif - -arm2_id: .long 0x41560200 @ ARM2 and 250 dont have a CPUID -arm250_id: .long 0x41560250 @ So we create some after probing for them - .align - -oldparams: mov r4, #0x02000000 - add r3, r4, #0x00080000 - add r4, r4, #0x0007c000 -1: ldmia r0!, {r5 - r12} - stmia r4!, {r5 - r12} - cmp r4, r3 - blt 1b - mov pc, lr - -/* - * We need some way to automatically detect the difference between - * these two machines. Unfortunately, it is not possible to detect - * the presence of the SuperIO chip, because that will hang the old - * Archimedes machines solid. - */ -/* DAG: Outdated, these have been combined !!!!!!! */ -detect_arch_type: -#if defined(CONFIG_ARCH_ARC) - mov r0, #MACH_TYPE_ARCHIMEDES -#elif defined(CONFIG_ARCH_A5K) - mov r0, #MACH_TYPE_A5K -#endif - mov pc, lr - -detect_proc_type: - mov ip, lr - mov r2, #0xea000000 @ Point undef instr to continuation - adr r0, continue - 12 - orr r0, r2, r0, lsr #2 - mov r1, #0 - str r0, [r1, #4] - ldr r0, arm2_id - swp r2, r2, [r1] @ check for swp (ARM2 cant) - ldr r0, arm250_id - mrc 15, 0, r3, c0, c0 @ check for CP#15 (ARM250 cant) - mov r0, r3 -continue: mov r2, #0xeb000000 @ Make undef vector loop - sub r2, r2, #2 - str r2, [r1, #4] - mov pc, ip diff --git a/trunk/arch/arm26/kernel/init_task.c b/trunk/arch/arm26/kernel/init_task.c deleted file mode 100644 index 4191565b889b..000000000000 --- a/trunk/arch/arm26/kernel/init_task.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * linux/arch/arm26/kernel/init_task.c - * - * Copyright (C) 2003 Ian Molton - * - */ -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -static struct fs_struct init_fs = INIT_FS; -static struct files_struct init_files = INIT_FILES; -static struct signal_struct init_signals = INIT_SIGNALS(init_signals); -static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -struct mm_struct init_mm = INIT_MM(init_mm); - -EXPORT_SYMBOL(init_mm); - -/* - * Initial thread structure. - * - * We need to make sure that this is 8192-byte aligned due to the - * way process stacks are handled. This is done by making sure - * the linker maps this in the .text segment right after head.S, - * and making the linker scripts ensure the proper alignment. - * - * FIXME - should this be 32K alignment on arm26? - * - * The things we do for performance... - */ -union thread_union init_thread_union - __attribute__((__section__(".init.task"))) = - { INIT_THREAD_INFO(init_task) }; - -/* - * Initial task structure. - * - * All other task structs will be allocated on slabs in fork.c - */ -struct task_struct init_task = INIT_TASK(init_task); - -EXPORT_SYMBOL(init_task); diff --git a/trunk/arch/arm26/kernel/irq.c b/trunk/arch/arm26/kernel/irq.c deleted file mode 100644 index 2ffe695b062e..000000000000 --- a/trunk/arch/arm26/kernel/irq.c +++ /dev/null @@ -1,722 +0,0 @@ -/* - * linux/arch/arm/kernel/irq.c - * - * Copyright (C) 1992 Linus Torvalds - * Modifications for ARM processor Copyright (C) 1995-2000 Russell King. - * 'Borrowed' for ARM26 and (C) 2003 Ian Molton. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This file contains the code used by various IRQ handling routines: - * asking for different IRQ's should be done through these routines - * instead of just grabbing them. Thus setups with different IRQ numbers - * shouldn't result in any weird surprises, and installing new handlers - * should be easier. - * - * IRQ's are in fact implemented a bit like signal handlers for the kernel. - * Naturally it's not a 1:1 relation, but there are similarities. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -//FIXME - this ought to be in a header IMO -void __init arc_init_irq(void); - -/* - * Maximum IRQ count. Currently, this is arbitary. However, it should - * not be set too low to prevent false triggering. Conversely, if it - * is set too high, then you could miss a stuck IRQ. - * - * FIXME Maybe we ought to set a timer and re-enable the IRQ at a later time? - */ -#define MAX_IRQ_CNT 100000 - -static volatile unsigned long irq_err_count; -static DEFINE_SPINLOCK(irq_controller_lock); - -struct irqdesc irq_desc[NR_IRQS]; - -/* - * Dummy mask/unmask handler - */ -void dummy_mask_unmask_irq(unsigned int irq) -{ -} - -void do_bad_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs) -{ - irq_err_count += 1; - printk(KERN_ERR "IRQ: spurious interrupt %d\n", irq); -} - -static struct irqchip bad_chip = { - .ack = dummy_mask_unmask_irq, - .mask = dummy_mask_unmask_irq, - .unmask = dummy_mask_unmask_irq, -}; - -static struct irqdesc bad_irq_desc = { - .chip = &bad_chip, - .handle = do_bad_IRQ, - .depth = 1, -}; - -/** - * disable_irq - disable an irq and wait for completion - * @irq: Interrupt to disable - * - * Disable the selected interrupt line. We do this lazily. - * - * This function may be called from IRQ context. - */ -void disable_irq(unsigned int irq) -{ - struct irqdesc *desc = irq_desc + irq; - unsigned long flags; - spin_lock_irqsave(&irq_controller_lock, flags); - if (!desc->depth++) - desc->enabled = 0; - spin_unlock_irqrestore(&irq_controller_lock, flags); -} -EXPORT_SYMBOL(disable_irq); - -void disable_irq_nosync(unsigned int irq) __attribute__((alias("disable_irq"))); - -EXPORT_SYMBOL(disable_irq_nosync); - -/** - * enable_irq - enable interrupt handling on an irq - * @irq: Interrupt to enable - * - * Re-enables the processing of interrupts on this IRQ line. - * Note that this may call the interrupt handler, so you may - * get unexpected results if you hold IRQs disabled. - * - * This function may be called from IRQ context. - */ -void enable_irq(unsigned int irq) -{ - struct irqdesc *desc = irq_desc + irq; - unsigned long flags; - int pending = 0; - - spin_lock_irqsave(&irq_controller_lock, flags); - if (unlikely(!desc->depth)) { - printk("enable_irq(%u) unbalanced from %p\n", irq, - __builtin_return_address(0)); //FIXME bum addresses reported - why? - } else if (!--desc->depth) { - desc->probing = 0; - desc->enabled = 1; - desc->chip->unmask(irq); - pending = desc->pending; - desc->pending = 0; - /* - * If the interrupt was waiting to be processed, - * retrigger it. - */ - if (pending) - desc->chip->rerun(irq); - } - spin_unlock_irqrestore(&irq_controller_lock, flags); -} -EXPORT_SYMBOL(enable_irq); - -int show_interrupts(struct seq_file *p, void *v) -{ - int i = *(loff_t *) v; - struct irqaction * action; - - if (i < NR_IRQS) { - action = irq_desc[i].action; - if (!action) - goto out; - seq_printf(p, "%3d: %10u ", i, kstat_irqs(i)); - seq_printf(p, " %s", action->name); - for (action = action->next; action; action = action->next) { - seq_printf(p, ", %s", action->name); - } - seq_putc(p, '\n'); - } else if (i == NR_IRQS) { - show_fiq_list(p, v); - seq_printf(p, "Err: %10lu\n", irq_err_count); - } -out: - return 0; -} - -/* - * IRQ lock detection. - * - * Hopefully, this should get us out of a few locked situations. - * However, it may take a while for this to happen, since we need - * a large number if IRQs to appear in the same jiffie with the - * same instruction pointer (or within 2 instructions). - */ -static int check_irq_lock(struct irqdesc *desc, int irq, struct pt_regs *regs) -{ - unsigned long instr_ptr = instruction_pointer(regs); - - if (desc->lck_jif == jiffies && - desc->lck_pc >= instr_ptr && desc->lck_pc < instr_ptr + 8) { - desc->lck_cnt += 1; - - if (desc->lck_cnt > MAX_IRQ_CNT) { - printk(KERN_ERR "IRQ LOCK: IRQ%d is locking the system, disabled\n", irq); - return 1; - } - } else { - desc->lck_cnt = 0; - desc->lck_pc = instruction_pointer(regs); - desc->lck_jif = jiffies; - } - return 0; -} - -static void -__do_irq(unsigned int irq, struct irqaction *action, struct pt_regs *regs) -{ - unsigned int status; - int ret; - - spin_unlock(&irq_controller_lock); - if (!(action->flags & IRQF_DISABLED)) - local_irq_enable(); - - status = 0; - do { - ret = action->handler(irq, action->dev_id, regs); - if (ret == IRQ_HANDLED) - status |= action->flags; - action = action->next; - } while (action); - - if (status & IRQF_SAMPLE_RANDOM) - add_interrupt_randomness(irq); - - spin_lock_irq(&irq_controller_lock); -} - -/* - * This is for software-decoded IRQs. The caller is expected to - * handle the ack, clear, mask and unmask issues. - */ -void -do_simple_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs) -{ - struct irqaction *action; - const int cpu = smp_processor_id(); - - desc->triggered = 1; - - kstat_cpu(cpu).irqs[irq]++; - - action = desc->action; - if (action) - __do_irq(irq, desc->action, regs); -} - -/* - * Most edge-triggered IRQ implementations seem to take a broken - * approach to this. Hence the complexity. - */ -void -do_edge_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs) -{ - const int cpu = smp_processor_id(); - - desc->triggered = 1; - - /* - * If we're currently running this IRQ, or its disabled, - * we shouldn't process the IRQ. Instead, turn on the - * hardware masks. - */ - if (unlikely(desc->running || !desc->enabled)) - goto running; - - /* - * Acknowledge and clear the IRQ, but don't mask it. - */ - desc->chip->ack(irq); - - /* - * Mark the IRQ currently in progress. - */ - desc->running = 1; - - kstat_cpu(cpu).irqs[irq]++; - - do { - struct irqaction *action; - - action = desc->action; - if (!action) - break; - - if (desc->pending && desc->enabled) { - desc->pending = 0; - desc->chip->unmask(irq); - } - - __do_irq(irq, action, regs); - } while (desc->pending); - - desc->running = 0; - - /* - * If we were disabled or freed, shut down the handler. - */ - if (likely(desc->action && !check_irq_lock(desc, irq, regs))) - return; - - running: - /* - * We got another IRQ while this one was masked or - * currently running. Delay it. - */ - desc->pending = 1; - desc->chip->mask(irq); - desc->chip->ack(irq); -} - -/* - * Level-based IRQ handler. Nice and simple. - */ -void -do_level_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs) -{ - struct irqaction *action; - const int cpu = smp_processor_id(); - - desc->triggered = 1; - - /* - * Acknowledge, clear _AND_ disable the interrupt. - */ - desc->chip->ack(irq); - - if (likely(desc->enabled)) { - kstat_cpu(cpu).irqs[irq]++; - - /* - * Return with this interrupt masked if no action - */ - action = desc->action; - if (action) { - __do_irq(irq, desc->action, regs); - - if (likely(desc->enabled && - !check_irq_lock(desc, irq, regs))) - desc->chip->unmask(irq); - } - } -} - -/* - * do_IRQ handles all hardware IRQ's. Decoded IRQs should not - * come via this function. Instead, they should provide their - * own 'handler' - */ -asmlinkage void asm_do_IRQ(int irq, struct pt_regs *regs) -{ - struct irqdesc *desc = irq_desc + irq; - - /* - * Some hardware gives randomly wrong interrupts. Rather - * than crashing, do something sensible. - */ - if (irq >= NR_IRQS) - desc = &bad_irq_desc; - - irq_enter(); - spin_lock(&irq_controller_lock); - desc->handle(irq, desc, regs); - spin_unlock(&irq_controller_lock); - irq_exit(); -} - -void __set_irq_handler(unsigned int irq, irq_handler_t handle, int is_chained) -{ - struct irqdesc *desc; - unsigned long flags; - - if (irq >= NR_IRQS) { - printk(KERN_ERR "Trying to install handler for IRQ%d\n", irq); - return; - } - - if (handle == NULL) - handle = do_bad_IRQ; - - desc = irq_desc + irq; - - if (is_chained && desc->chip == &bad_chip) - printk(KERN_WARNING "Trying to install chained handler for IRQ%d\n", irq); - - spin_lock_irqsave(&irq_controller_lock, flags); - if (handle == do_bad_IRQ) { - desc->chip->mask(irq); - desc->chip->ack(irq); - desc->depth = 1; - desc->enabled = 0; - } - desc->handle = handle; - if (handle != do_bad_IRQ && is_chained) { - desc->valid = 0; - desc->probe_ok = 0; - desc->depth = 0; - desc->chip->unmask(irq); - } - spin_unlock_irqrestore(&irq_controller_lock, flags); -} - -void set_irq_chip(unsigned int irq, struct irqchip *chip) -{ - struct irqdesc *desc; - unsigned long flags; - - if (irq >= NR_IRQS) { - printk(KERN_ERR "Trying to install chip for IRQ%d\n", irq); - return; - } - - if (chip == NULL) - chip = &bad_chip; - - desc = irq_desc + irq; - spin_lock_irqsave(&irq_controller_lock, flags); - desc->chip = chip; - spin_unlock_irqrestore(&irq_controller_lock, flags); -} - -int set_irq_type(unsigned int irq, unsigned int type) -{ - struct irqdesc *desc; - unsigned long flags; - int ret = -ENXIO; - - if (irq >= NR_IRQS) { - printk(KERN_ERR "Trying to set irq type for IRQ%d\n", irq); - return -ENODEV; - } - - desc = irq_desc + irq; - if (desc->chip->type) { - spin_lock_irqsave(&irq_controller_lock, flags); - ret = desc->chip->type(irq, type); - spin_unlock_irqrestore(&irq_controller_lock, flags); - } - - return ret; -} - -void set_irq_flags(unsigned int irq, unsigned int iflags) -{ - struct irqdesc *desc; - unsigned long flags; - - if (irq >= NR_IRQS) { - printk(KERN_ERR "Trying to set irq flags for IRQ%d\n", irq); - return; - } - - desc = irq_desc + irq; - spin_lock_irqsave(&irq_controller_lock, flags); - desc->valid = (iflags & IRQF_VALID) != 0; - desc->probe_ok = (iflags & IRQF_PROBE) != 0; - desc->noautoenable = (iflags & IRQF_NOAUTOEN) != 0; - spin_unlock_irqrestore(&irq_controller_lock, flags); -} - -int setup_irq(unsigned int irq, struct irqaction *new) -{ - int shared = 0; - struct irqaction *old, **p; - unsigned long flags; - struct irqdesc *desc; - - /* - * Some drivers like serial.c use request_irq() heavily, - * so we have to be careful not to interfere with a - * running system. - */ - if (new->flags & IRQF_SAMPLE_RANDOM) { - /* - * This function might sleep, we want to call it first, - * outside of the atomic block. - * Yes, this might clear the entropy pool if the wrong - * driver is attempted to be loaded, without actually - * installing a new handler, but is this really a problem, - * only the sysadmin is able to do this. - */ - rand_initialize_irq(irq); - } - - /* - * The following block of code has to be executed atomically - */ - desc = irq_desc + irq; - spin_lock_irqsave(&irq_controller_lock, flags); - p = &desc->action; - if ((old = *p) != NULL) { - /* Can't share interrupts unless both agree to */ - if (!(old->flags & new->flags & IRQF_SHARED)) { - spin_unlock_irqrestore(&irq_controller_lock, flags); - return -EBUSY; - } - - /* add new interrupt at end of irq queue */ - do { - p = &old->next; - old = *p; - } while (old); - shared = 1; - } - - *p = new; - - if (!shared) { - desc->probing = 0; - desc->running = 0; - desc->pending = 0; - desc->depth = 1; - if (!desc->noautoenable) { - desc->depth = 0; - desc->enabled = 1; - desc->chip->unmask(irq); - } - } - - spin_unlock_irqrestore(&irq_controller_lock, flags); - return 0; -} - -/** - * request_irq - allocate an interrupt line - * @irq: Interrupt line to allocate - * @handler: Function to be called when the IRQ occurs - * @irqflags: Interrupt type flags - * @devname: An ascii name for the claiming device - * @dev_id: A cookie passed back to the handler function - * - * This call allocates interrupt resources and enables the - * interrupt line and IRQ handling. From the point this - * call is made your handler function may be invoked. Since - * your handler function must clear any interrupt the board - * raises, you must take care both to initialise your hardware - * and to set up the interrupt handler in the right order. - * - * Dev_id must be globally unique. Normally the address of the - * device data structure is used as the cookie. Since the handler - * receives this value it makes sense to use it. - * - * If your interrupt is shared you must pass a non NULL dev_id - * as this is required when freeing the interrupt. - * - * Flags: - * - * IRQF_SHARED Interrupt is shared - * - * IRQF_DISABLED Disable local interrupts while processing - * - * IRQF_SAMPLE_RANDOM The interrupt can be used for entropy - * - */ - -//FIXME - handler used to return void - whats the significance of the change? -int request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long irq_flags, const char * devname, void *dev_id) -{ - unsigned long retval; - struct irqaction *action; - - if (irq >= NR_IRQS || !irq_desc[irq].valid || !handler || - (irq_flags & IRQF_SHARED && !dev_id)) - return -EINVAL; - - action = kmalloc(sizeof(struct irqaction), GFP_KERNEL); - if (!action) - return -ENOMEM; - - action->handler = handler; - action->flags = irq_flags; - cpus_clear(action->mask); - action->name = devname; - action->next = NULL; - action->dev_id = dev_id; - - retval = setup_irq(irq, action); - - if (retval) - kfree(action); - return retval; -} - -EXPORT_SYMBOL(request_irq); - -/** - * free_irq - free an interrupt - * @irq: Interrupt line to free - * @dev_id: Device identity to free - * - * Remove an interrupt handler. The handler is removed and if the - * interrupt line is no longer in use by any driver it is disabled. - * On a shared IRQ the caller must ensure the interrupt is disabled - * on the card it drives before calling this function. - * - * This function may be called from interrupt context. - */ -void free_irq(unsigned int irq, void *dev_id) -{ - struct irqaction * action, **p; - unsigned long flags; - - if (irq >= NR_IRQS || !irq_desc[irq].valid) { - printk(KERN_ERR "Trying to free IRQ%d\n",irq); -#ifdef CONFIG_DEBUG_ERRORS - __backtrace(); -#endif - return; - } - - spin_lock_irqsave(&irq_controller_lock, flags); - for (p = &irq_desc[irq].action; (action = *p) != NULL; p = &action->next) { - if (action->dev_id != dev_id) - continue; - - /* Found it - now free it */ - *p = action->next; - kfree(action); - goto out; - } - printk(KERN_ERR "Trying to free free IRQ%d\n",irq); -#ifdef CONFIG_DEBUG_ERRORS - __backtrace(); -#endif -out: - spin_unlock_irqrestore(&irq_controller_lock, flags); -} - -EXPORT_SYMBOL(free_irq); - -/* Start the interrupt probing. Unlike other architectures, - * we don't return a mask of interrupts from probe_irq_on, - * but return the number of interrupts enabled for the probe. - * The interrupts which have been enabled for probing is - * instead recorded in the irq_desc structure. - */ -unsigned long probe_irq_on(void) -{ - unsigned int i, irqs = 0; - unsigned long delay; - - /* - * first snaffle up any unassigned but - * probe-able interrupts - */ - spin_lock_irq(&irq_controller_lock); - for (i = 0; i < NR_IRQS; i++) { - if (!irq_desc[i].probe_ok || irq_desc[i].action) - continue; - - irq_desc[i].probing = 1; - irq_desc[i].triggered = 0; - if (irq_desc[i].chip->type) - irq_desc[i].chip->type(i, IRQT_PROBE); - irq_desc[i].chip->unmask(i); - irqs += 1; - } - spin_unlock_irq(&irq_controller_lock); - - /* - * wait for spurious interrupts to mask themselves out again - */ - for (delay = jiffies + HZ/10; time_before(jiffies, delay); ) - /* min 100ms delay */; - - /* - * now filter out any obviously spurious interrupts - */ - spin_lock_irq(&irq_controller_lock); - for (i = 0; i < NR_IRQS; i++) { - if (irq_desc[i].probing && irq_desc[i].triggered) { - irq_desc[i].probing = 0; - irqs -= 1; - } - } - spin_unlock_irq(&irq_controller_lock); - - return irqs; -} - -EXPORT_SYMBOL(probe_irq_on); - -/* - * Possible return values: - * >= 0 - interrupt number - * -1 - no interrupt/many interrupts - */ -int probe_irq_off(unsigned long irqs) -{ - unsigned int i; - int irq_found = NO_IRQ; - - /* - * look at the interrupts, and find exactly one - * that we were probing has been triggered - */ - spin_lock_irq(&irq_controller_lock); - for (i = 0; i < NR_IRQS; i++) { - if (irq_desc[i].probing && - irq_desc[i].triggered) { - if (irq_found != NO_IRQ) { - irq_found = NO_IRQ; - goto out; - } - irq_found = i; - } - } - - if (irq_found == -1) - irq_found = NO_IRQ; -out: - spin_unlock_irq(&irq_controller_lock); - - return irq_found; -} - -EXPORT_SYMBOL(probe_irq_off); - -void __init init_irq_proc(void) -{ -} - -void __init init_IRQ(void) -{ - struct irqdesc *desc; - extern void init_dma(void); - int irq; - - for (irq = 0, desc = irq_desc; irq < NR_IRQS; irq++, desc++) - *desc = bad_irq_desc; - - arc_init_irq(); - init_dma(); -} diff --git a/trunk/arch/arm26/kernel/process.c b/trunk/arch/arm26/kernel/process.c deleted file mode 100644 index dcd81e62ff4e..000000000000 --- a/trunk/arch/arm26/kernel/process.c +++ /dev/null @@ -1,392 +0,0 @@ -/* - * linux/arch/arm26/kernel/process.c - * - * Copyright (C) 2003 Ian Molton - adapted for ARM26 - * Copyright (C) 1996-2000 Russell King - Converted to ARM. - * Origional Copyright (C) 1995 Linus Torvalds - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include - -extern const char *processor_modes[]; -extern void setup_mm_for_reboot(char mode); - -static volatile int hlt_counter; - -void disable_hlt(void) -{ - hlt_counter++; -} - -EXPORT_SYMBOL(disable_hlt); - -void enable_hlt(void) -{ - hlt_counter--; -} - -EXPORT_SYMBOL(enable_hlt); - -static int __init nohlt_setup(char *__unused) -{ - hlt_counter = 1; - return 1; -} - -static int __init hlt_setup(char *__unused) -{ - hlt_counter = 0; - return 1; -} - -__setup("nohlt", nohlt_setup); -__setup("hlt", hlt_setup); - -/* - * This is our default idle handler. We need to disable - * interrupts here to ensure we don't miss a wakeup call. - */ -void cpu_idle(void) -{ - /* endless idle loop with no priority at all */ - while (1) { - while (!need_resched()) - cpu_relax(); - preempt_enable_no_resched(); - schedule(); - preempt_disable(); - } -} - -static char reboot_mode = 'h'; - -int __init reboot_setup(char *str) -{ - reboot_mode = str[0]; - return 1; -} - -__setup("reboot=", reboot_setup); - -/* ARM26 cant do these but we still need to define them. */ -void machine_halt(void) -{ -} -void machine_power_off(void) -{ -} - -void machine_restart(char * __unused) -{ - /* - * Clean and disable cache, and turn off interrupts - */ - cpu_proc_fin(); - - /* - * Tell the mm system that we are going to reboot - - * we may need it to insert some 1:1 mappings so that - * soft boot works. - */ - setup_mm_for_reboot(reboot_mode); - - /* - * copy branch instruction to reset location and call it - */ - - *(unsigned long *)0 = *(unsigned long *)0x03800000; - ((void(*)(void))0)(); - - /* - * Whoops - the architecture was unable to reboot. - * Tell the user! Should never happen... - */ - mdelay(1000); - printk("Reboot failed -- System halted\n"); - while (1); -} - -void show_regs(struct pt_regs * regs) -{ - unsigned long flags; - - flags = condition_codes(regs); - - printk("pc : [<%08lx>] lr : [<%08lx>] %s\n" - "sp : %08lx ip : %08lx fp : %08lx\n", - instruction_pointer(regs), - regs->ARM_lr, print_tainted(), regs->ARM_sp, - regs->ARM_ip, regs->ARM_fp); - printk("r10: %08lx r9 : %08lx r8 : %08lx\n", - regs->ARM_r10, regs->ARM_r9, - regs->ARM_r8); - printk("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n", - regs->ARM_r7, regs->ARM_r6, - regs->ARM_r5, regs->ARM_r4); - printk("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n", - regs->ARM_r3, regs->ARM_r2, - regs->ARM_r1, regs->ARM_r0); - printk("Flags: %c%c%c%c", - flags & PSR_N_BIT ? 'N' : 'n', - flags & PSR_Z_BIT ? 'Z' : 'z', - flags & PSR_C_BIT ? 'C' : 'c', - flags & PSR_V_BIT ? 'V' : 'v'); - printk(" IRQs o%s FIQs o%s Mode %s Segment %s\n", - interrupts_enabled(regs) ? "n" : "ff", - fast_interrupts_enabled(regs) ? "n" : "ff", - processor_modes[processor_mode(regs)], - get_fs() == get_ds() ? "kernel" : "user"); -} - -void show_fpregs(struct user_fp *regs) -{ - int i; - - for (i = 0; i < 8; i++) { - unsigned long *p; - char type; - - p = (unsigned long *)(regs->fpregs + i); - - switch (regs->ftype[i]) { - case 1: type = 'f'; break; - case 2: type = 'd'; break; - case 3: type = 'e'; break; - default: type = '?'; break; - } - if (regs->init_flag) - type = '?'; - - printk(" f%d(%c): %08lx %08lx %08lx%c", - i, type, p[0], p[1], p[2], i & 1 ? '\n' : ' '); - } - - - printk("FPSR: %08lx FPCR: %08lx\n", - (unsigned long)regs->fpsr, - (unsigned long)regs->fpcr); -} - -/* - * Task structure and kernel stack allocation. - */ -static unsigned long *thread_info_head; -static unsigned int nr_thread_info; - -extern unsigned long get_page_8k(int priority); -extern void free_page_8k(unsigned long page); - -// FIXME - is this valid? -#define EXTRA_TASK_STRUCT 0 -#define ll_alloc_task_struct() ((struct thread_info *)get_page_8k(GFP_KERNEL)) -#define ll_free_task_struct(p) free_page_8k((unsigned long)(p)) - -//FIXME - do we use *task param below looks like we dont, which is ok? -//FIXME - if EXTRA_TASK_STRUCT is zero we can optimise the below away permanently. *IF* its supposed to be zero. -struct thread_info *alloc_thread_info(struct task_struct *task) -{ - struct thread_info *thread = NULL; - - if (EXTRA_TASK_STRUCT) { - unsigned long *p = thread_info_head; - - if (p) { - thread_info_head = (unsigned long *)p[0]; - nr_thread_info -= 1; - } - thread = (struct thread_info *)p; - } - - if (!thread) - thread = ll_alloc_task_struct(); - -#ifdef CONFIG_MAGIC_SYSRQ - /* - * The stack must be cleared if you want SYSRQ-T to - * give sensible stack usage information - */ - if (thread) { - char *p = (char *)thread; - memzero(p+KERNEL_STACK_SIZE, KERNEL_STACK_SIZE); - } -#endif - return thread; -} - -void free_thread_info(struct thread_info *thread) -{ - if (EXTRA_TASK_STRUCT && nr_thread_info < EXTRA_TASK_STRUCT) { - unsigned long *p = (unsigned long *)thread; - p[0] = (unsigned long)thread_info_head; - thread_info_head = p; - nr_thread_info += 1; - } else - ll_free_task_struct(thread); -} - -/* - * Free current thread data structures etc.. - */ -void exit_thread(void) -{ -} - -void flush_thread(void) -{ - struct thread_info *thread = current_thread_info(); - struct task_struct *tsk = current; - - memset(&tsk->thread.debug, 0, sizeof(struct debug_info)); - memset(&thread->fpstate, 0, sizeof(union fp_state)); - - clear_used_math(); -} - -void release_thread(struct task_struct *dead_task) -{ -} - -asmlinkage void ret_from_fork(void) __asm__("ret_from_fork"); - -int -copy_thread(int nr, unsigned long clone_flags, unsigned long stack_start, - unsigned long unused, struct task_struct *p, struct pt_regs *regs) -{ - struct thread_info *thread = task_thread_info(p); - struct pt_regs *childregs = task_pt_regs(p); - - *childregs = *regs; - childregs->ARM_r0 = 0; - childregs->ARM_sp = stack_start; - - memset(&thread->cpu_context, 0, sizeof(struct cpu_context_save)); - thread->cpu_context.sp = (unsigned long)childregs; - thread->cpu_context.pc = (unsigned long)ret_from_fork | MODE_SVC26 | PSR_I_BIT; - - return 0; -} - -/* - * fill in the fpe structure for a core dump... - */ -int dump_fpu (struct pt_regs *regs, struct user_fp *fp) -{ - struct thread_info *thread = current_thread_info(); - int used_math = !!used_math(); - - if (used_math) - memcpy(fp, &thread->fpstate.soft, sizeof (*fp)); - - return used_math; -} - -/* - * fill in the user structure for a core dump.. - */ -void dump_thread(struct pt_regs * regs, struct user * dump) -{ - struct task_struct *tsk = current; - - dump->magic = CMAGIC; - dump->start_code = tsk->mm->start_code; - dump->start_stack = regs->ARM_sp & ~(PAGE_SIZE - 1); - - dump->u_tsize = (tsk->mm->end_code - tsk->mm->start_code) >> PAGE_SHIFT; - dump->u_dsize = (tsk->mm->brk - tsk->mm->start_data + PAGE_SIZE - 1) >> PAGE_SHIFT; - dump->u_ssize = 0; - - dump->u_debugreg[0] = tsk->thread.debug.bp[0].address; - dump->u_debugreg[1] = tsk->thread.debug.bp[1].address; - dump->u_debugreg[2] = tsk->thread.debug.bp[0].insn; - dump->u_debugreg[3] = tsk->thread.debug.bp[1].insn; - dump->u_debugreg[4] = tsk->thread.debug.nsaved; - - if (dump->start_stack < 0x04000000) - dump->u_ssize = (0x04000000 - dump->start_stack) >> PAGE_SHIFT; - - dump->regs = *regs; - dump->u_fpvalid = dump_fpu (regs, &dump->u_fp); -} - -/* - * Shuffle the argument into the correct register before calling the - * thread function. r1 is the thread argument, r2 is the pointer to - * the thread function, and r3 points to the exit function. - * FIXME - make sure this is right - the older code used to zero fp - * and cause the parent to call sys_exit (do_exit in this version) - */ -extern void kernel_thread_helper(void); - -asm( ".section .text\n" -" .align\n" -" .type kernel_thread_helper, #function\n" -"kernel_thread_helper:\n" -" mov r0, r1\n" -" mov lr, r3\n" -" mov pc, r2\n" -" .size kernel_thread_helper, . - kernel_thread_helper\n" -" .previous"); - -/* - * Create a kernel thread. - */ -pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags) -{ - struct pt_regs regs; - - memset(®s, 0, sizeof(regs)); - - regs.ARM_r1 = (unsigned long)arg; - regs.ARM_r2 = (unsigned long)fn; - regs.ARM_r3 = (unsigned long)do_exit; - regs.ARM_pc = (unsigned long)kernel_thread_helper | MODE_SVC26; - - return do_fork(flags|CLONE_VM|CLONE_UNTRACED, 0, ®s, 0, NULL, NULL); -} -EXPORT_SYMBOL(kernel_thread); - - -unsigned long get_wchan(struct task_struct *p) -{ - unsigned long fp, lr; - unsigned long stack_page; - int count = 0; - if (!p || p == current || p->state == TASK_RUNNING) - return 0; - - stack_page = 4096 + (unsigned long)p; - fp = thread_saved_fp(p); - do { - if (fp < stack_page || fp > 4092+stack_page) - return 0; - lr = pc_pointer (((unsigned long *)fp)[-1]); - if (!in_sched_functions(lr)) - return lr; - fp = *(unsigned long *) (fp - 12); - } while (count ++ < 16); - return 0; -} diff --git a/trunk/arch/arm26/kernel/ptrace.c b/trunk/arch/arm26/kernel/ptrace.c deleted file mode 100644 index 0fefb86970c6..000000000000 --- a/trunk/arch/arm26/kernel/ptrace.c +++ /dev/null @@ -1,670 +0,0 @@ -/* - * linux/arch/arm26/kernel/ptrace.c - * - * By Ross Biro 1/23/92 - * edited by Linus Torvalds - * ARM modifications Copyright (C) 2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -//#include - -#include "ptrace.h" - -#define REG_PC 15 -#define REG_PSR 15 -/* - * does not yet catch signals sent when the child dies. - * in exit.c or in signal.c. - */ - -/* - * Breakpoint SWI instruction: SWI &9F0001 - */ -#define BREAKINST_ARM 0xef9f0001 - -/* - * this routine will get a word off of the processes privileged stack. - * the offset is how far from the base addr as stored in the THREAD. - * this routine assumes that all the privileged stacks are in our - * data space. - */ -static inline long get_user_reg(struct task_struct *task, int offset) -{ - return task_pt_regs(task)->uregs[offset]; -} - -/* - * this routine will put a word on the processes privileged stack. - * the offset is how far from the base addr as stored in the THREAD. - * this routine assumes that all the privileged stacks are in our - * data space. - */ -static inline int -put_user_reg(struct task_struct *task, int offset, long data) -{ - struct pt_regs newregs, *regs = task_pt_regs(task); - int ret = -EINVAL; - - newregs = *regs; - newregs.uregs[offset] = data; - - if (valid_user_regs(&newregs)) { - regs->uregs[offset] = data; - ret = 0; - } - - return ret; -} - -static inline int -read_u32(struct task_struct *task, unsigned long addr, u32 *res) -{ - int ret; - - ret = access_process_vm(task, addr, res, sizeof(*res), 0); - - return ret == sizeof(*res) ? 0 : -EIO; -} - -static inline int -read_instr(struct task_struct *task, unsigned long addr, u32 *res) -{ - int ret; - u32 val; - ret = access_process_vm(task, addr & ~3, &val, sizeof(val), 0); - ret = ret == sizeof(val) ? 0 : -EIO; - *res = val; - return ret; -} - -/* - * Get value of register `rn' (in the instruction) - */ -static unsigned long -ptrace_getrn(struct task_struct *child, unsigned long insn) -{ - unsigned int reg = (insn >> 16) & 15; - unsigned long val; - - val = get_user_reg(child, reg); - if (reg == 15) - val = pc_pointer(val + 8); //FIXME - correct for arm26? - - return val; -} - -/* - * Get value of operand 2 (in an ALU instruction) - */ -static unsigned long -ptrace_getaluop2(struct task_struct *child, unsigned long insn) -{ - unsigned long val; - int shift; - int type; - - if (insn & 1 << 25) { - val = insn & 255; - shift = (insn >> 8) & 15; - type = 3; - } else { - val = get_user_reg (child, insn & 15); - - if (insn & (1 << 4)) - shift = (int)get_user_reg (child, (insn >> 8) & 15); - else - shift = (insn >> 7) & 31; - - type = (insn >> 5) & 3; - } - - switch (type) { - case 0: val <<= shift; break; - case 1: val >>= shift; break; - case 2: - val = (((signed long)val) >> shift); - break; - case 3: - val = (val >> shift) | (val << (32 - shift)); - break; - } - return val; -} - -/* - * Get value of operand 2 (in a LDR instruction) - */ -static unsigned long -ptrace_getldrop2(struct task_struct *child, unsigned long insn) -{ - unsigned long val; - int shift; - int type; - - val = get_user_reg(child, insn & 15); - shift = (insn >> 7) & 31; - type = (insn >> 5) & 3; - - switch (type) { - case 0: val <<= shift; break; - case 1: val >>= shift; break; - case 2: - val = (((signed long)val) >> shift); - break; - case 3: - val = (val >> shift) | (val << (32 - shift)); - break; - } - return val; -} - -#define OP_MASK 0x01e00000 -#define OP_AND 0x00000000 -#define OP_EOR 0x00200000 -#define OP_SUB 0x00400000 -#define OP_RSB 0x00600000 -#define OP_ADD 0x00800000 -#define OP_ADC 0x00a00000 -#define OP_SBC 0x00c00000 -#define OP_RSC 0x00e00000 -#define OP_ORR 0x01800000 -#define OP_MOV 0x01a00000 -#define OP_BIC 0x01c00000 -#define OP_MVN 0x01e00000 - -static unsigned long -get_branch_address(struct task_struct *child, unsigned long pc, unsigned long insn) -{ - u32 alt = 0; - - switch (insn & 0x0e000000) { - case 0x00000000: - case 0x02000000: { - /* - * data processing - */ - long aluop1, aluop2, ccbit; - - if ((insn & 0xf000) != 0xf000) - break; - - aluop1 = ptrace_getrn(child, insn); - aluop2 = ptrace_getaluop2(child, insn); - ccbit = get_user_reg(child, REG_PSR) & PSR_C_BIT ? 1 : 0; - - switch (insn & OP_MASK) { - case OP_AND: alt = aluop1 & aluop2; break; - case OP_EOR: alt = aluop1 ^ aluop2; break; - case OP_SUB: alt = aluop1 - aluop2; break; - case OP_RSB: alt = aluop2 - aluop1; break; - case OP_ADD: alt = aluop1 + aluop2; break; - case OP_ADC: alt = aluop1 + aluop2 + ccbit; break; - case OP_SBC: alt = aluop1 - aluop2 + ccbit; break; - case OP_RSC: alt = aluop2 - aluop1 + ccbit; break; - case OP_ORR: alt = aluop1 | aluop2; break; - case OP_MOV: alt = aluop2; break; - case OP_BIC: alt = aluop1 & ~aluop2; break; - case OP_MVN: alt = ~aluop2; break; - } - break; - } - - case 0x04000000: - case 0x06000000: - /* - * ldr - */ - if ((insn & 0x0010f000) == 0x0010f000) { - unsigned long base; - - base = ptrace_getrn(child, insn); - if (insn & 1 << 24) { - long aluop2; - - if (insn & 0x02000000) - aluop2 = ptrace_getldrop2(child, insn); - else - aluop2 = insn & 0xfff; - - if (insn & 1 << 23) - base += aluop2; - else - base -= aluop2; - } - if (read_u32(child, base, &alt) == 0) - alt = pc_pointer(alt); - } - break; - - case 0x08000000: - /* - * ldm - */ - if ((insn & 0x00108000) == 0x00108000) { - unsigned long base; - unsigned int nr_regs; - - if (insn & (1 << 23)) { - nr_regs = hweight16(insn & 65535) << 2; - - if (!(insn & (1 << 24))) - nr_regs -= 4; - } else { - if (insn & (1 << 24)) - nr_regs = -4; - else - nr_regs = 0; - } - - base = ptrace_getrn(child, insn); - - if (read_u32(child, base + nr_regs, &alt) == 0) - alt = pc_pointer(alt); - break; - } - break; - - case 0x0a000000: { - /* - * bl or b - */ - signed long displ; - /* It's a branch/branch link: instead of trying to - * figure out whether the branch will be taken or not, - * we'll put a breakpoint at both locations. This is - * simpler, more reliable, and probably not a whole lot - * slower than the alternative approach of emulating the - * branch. - */ - displ = (insn & 0x00ffffff) << 8; - displ = (displ >> 6) + 8; - if (displ != 0 && displ != 4) - alt = pc + displ; - } - break; - } - - return alt; -} - -static int -swap_insn(struct task_struct *task, unsigned long addr, - void *old_insn, void *new_insn, int size) -{ - int ret; - - ret = access_process_vm(task, addr, old_insn, size, 0); - if (ret == size) - ret = access_process_vm(task, addr, new_insn, size, 1); - return ret; -} - -static void -add_breakpoint(struct task_struct *task, struct debug_info *dbg, unsigned long addr) -{ - int nr = dbg->nsaved; - - if (nr < 2) { - u32 new_insn = BREAKINST_ARM; - int res; - - res = swap_insn(task, addr, &dbg->bp[nr].insn, &new_insn, 4); - - if (res == 4) { - dbg->bp[nr].address = addr; - dbg->nsaved += 1; - } - } else - printk(KERN_ERR "ptrace: too many breakpoints\n"); -} - -/* - * Clear one breakpoint in the user program. We copy what the hardware - * does and use bit 0 of the address to indicate whether this is a Thumb - * breakpoint or an ARM breakpoint. - */ -static void clear_breakpoint(struct task_struct *task, struct debug_entry *bp) -{ - unsigned long addr = bp->address; - u32 old_insn; - int ret; - - ret = swap_insn(task, addr & ~3, &old_insn, - &bp->insn, 4); - - if (ret != 4 || old_insn != BREAKINST_ARM) - printk(KERN_ERR "%s:%d: corrupted ARM breakpoint at " - "0x%08lx (0x%08x)\n", task->comm, task->pid, - addr, old_insn); -} - -void ptrace_set_bpt(struct task_struct *child) -{ - struct pt_regs *regs; - unsigned long pc; - u32 insn; - int res; - - regs = task_pt_regs(child); - pc = instruction_pointer(regs); - - res = read_instr(child, pc, &insn); - if (!res) { - struct debug_info *dbg = &child->thread.debug; - unsigned long alt; - - dbg->nsaved = 0; - - alt = get_branch_address(child, pc, insn); - if (alt) - add_breakpoint(child, dbg, alt); - - /* - * Note that we ignore the result of setting the above - * breakpoint since it may fail. When it does, this is - * not so much an error, but a forewarning that we may - * be receiving a prefetch abort shortly. - * - * If we don't set this breakpoint here, then we can - * lose control of the thread during single stepping. - */ - if (!alt || predicate(insn) != PREDICATE_ALWAYS) - add_breakpoint(child, dbg, pc + 4); - } -} - -/* - * Ensure no single-step breakpoint is pending. Returns non-zero - * value if child was being single-stepped. - */ -void ptrace_cancel_bpt(struct task_struct *child) -{ - int i, nsaved = child->thread.debug.nsaved; - - child->thread.debug.nsaved = 0; - - if (nsaved > 2) { - printk("ptrace_cancel_bpt: bogus nsaved: %d!\n", nsaved); - nsaved = 2; - } - - for (i = 0; i < nsaved; i++) - clear_breakpoint(child, &child->thread.debug.bp[i]); -} - -/* - * Called by kernel/ptrace.c when detaching.. - * - * Make sure the single step bit is not set. - */ -void ptrace_disable(struct task_struct *child) -{ - child->ptrace &= ~PT_SINGLESTEP; - ptrace_cancel_bpt(child); -} - -/* - * Handle hitting a breakpoint. - */ -void ptrace_break(struct task_struct *tsk, struct pt_regs *regs) -{ - siginfo_t info; - - /* - * The PC is always left pointing at the next instruction. Fix this. - */ - regs->ARM_pc -= 4; - - if (tsk->thread.debug.nsaved == 0) - printk(KERN_ERR "ptrace: bogus breakpoint trap\n"); - - ptrace_cancel_bpt(tsk); - - info.si_signo = SIGTRAP; - info.si_errno = 0; - info.si_code = TRAP_BRKPT; - info.si_addr = (void *)instruction_pointer(regs) - 4; - - force_sig_info(SIGTRAP, &info, tsk); -} - -/* - * Read the word at offset "off" into the "struct user". We - * actually access the pt_regs stored on the kernel stack. - */ -static int ptrace_read_user(struct task_struct *tsk, unsigned long off, - unsigned long *ret) -{ - unsigned long tmp; - - if (off & 3 || off >= sizeof(struct user)) - return -EIO; - - tmp = 0; - if (off < sizeof(struct pt_regs)) - tmp = get_user_reg(tsk, off >> 2); - - return put_user(tmp, ret); -} - -/* - * Write the word at offset "off" into "struct user". We - * actually access the pt_regs stored on the kernel stack. - */ -static int ptrace_write_user(struct task_struct *tsk, unsigned long off, - unsigned long val) -{ - if (off & 3 || off >= sizeof(struct user)) - return -EIO; - - if (off >= sizeof(struct pt_regs)) - return 0; - - return put_user_reg(tsk, off >> 2, val); -} - -/* - * Get all user integer registers. - */ -static int ptrace_getregs(struct task_struct *tsk, void *uregs) -{ - struct pt_regs *regs = task_pt_regs(tsk); - - return copy_to_user(uregs, regs, sizeof(struct pt_regs)) ? -EFAULT : 0; -} - -/* - * Set all user integer registers. - */ -static int ptrace_setregs(struct task_struct *tsk, void *uregs) -{ - struct pt_regs newregs; - int ret; - - ret = -EFAULT; - if (copy_from_user(&newregs, uregs, sizeof(struct pt_regs)) == 0) { - struct pt_regs *regs = task_pt_regs(tsk); - - ret = -EINVAL; - if (valid_user_regs(&newregs)) { - *regs = newregs; - ret = 0; - } - } - - return ret; -} - -/* - * Get the child FPU state. - */ -static int ptrace_getfpregs(struct task_struct *tsk, void *ufp) -{ - return copy_to_user(ufp, &task_thread_info(tsk)->fpstate, - sizeof(struct user_fp)) ? -EFAULT : 0; -} - -/* - * Set the child FPU state. - */ -static int ptrace_setfpregs(struct task_struct *tsk, void *ufp) -{ - set_stopped_child_used_math(tsk); - return copy_from_user(&task_thread_info(tsk)->fpstate, ufp, - sizeof(struct user_fp)) ? -EFAULT : 0; -} - -long arch_ptrace(struct task_struct *child, long request, long addr, long data) -{ - int ret; - - switch (request) { - /* - * read word at location "addr" in the child process. - */ - case PTRACE_PEEKTEXT: - case PTRACE_PEEKDATA: - ret = generic_ptrace_peekdata(child, addr, data); - break; - - case PTRACE_PEEKUSR: - ret = ptrace_read_user(child, addr, (unsigned long *)data); - break; - - /* - * write the word at location addr. - */ - case PTRACE_POKETEXT: - case PTRACE_POKEDATA: - ret = generic_ptrace_pokedata(child, addr, data); - break; - - case PTRACE_POKEUSR: - ret = ptrace_write_user(child, addr, data); - break; - - /* - * continue/restart and stop at next (return from) syscall - */ - case PTRACE_SYSCALL: - case PTRACE_CONT: - ret = -EIO; - if (!valid_signal(data)) - break; - if (request == PTRACE_SYSCALL) - set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - else - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - child->exit_code = data; - /* make sure single-step breakpoint is gone. */ - child->ptrace &= ~PT_SINGLESTEP; - ptrace_cancel_bpt(child); - wake_up_process(child); - ret = 0; - break; - - /* - * make the child exit. Best I can do is send it a sigkill. - * perhaps it should be put in the status that it wants to - * exit. - */ - case PTRACE_KILL: - /* make sure single-step breakpoint is gone. */ - child->ptrace &= ~PT_SINGLESTEP; - ptrace_cancel_bpt(child); - if (child->exit_state != EXIT_ZOMBIE) { - child->exit_code = SIGKILL; - wake_up_process(child); - } - ret = 0; - break; - - /* - * execute single instruction. - */ - case PTRACE_SINGLESTEP: - ret = -EIO; - if (!valid_signal(data)) - break; - child->ptrace |= PT_SINGLESTEP; - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - child->exit_code = data; - /* give it a chance to run. */ - wake_up_process(child); - ret = 0; - break; - - case PTRACE_DETACH: - ret = ptrace_detach(child, data); - break; - - case PTRACE_GETREGS: - ret = ptrace_getregs(child, (void *)data); - break; - - case PTRACE_SETREGS: - ret = ptrace_setregs(child, (void *)data); - break; - - case PTRACE_GETFPREGS: - ret = ptrace_getfpregs(child, (void *)data); - break; - - case PTRACE_SETFPREGS: - ret = ptrace_setfpregs(child, (void *)data); - break; - - default: - ret = ptrace_request(child, request, addr, data); - break; - } - - return ret; -} - -asmlinkage void syscall_trace(int why, struct pt_regs *regs) -{ - unsigned long ip; - - if (!test_thread_flag(TIF_SYSCALL_TRACE)) - return; - if (!(current->ptrace & PT_PTRACED)) - return; - - /* - * Save IP. IP is used to denote syscall entry/exit: - * IP = 0 -> entry, = 1 -> exit - */ - ip = regs->ARM_ip; - regs->ARM_ip = why; - - /* the 0x80 provides a way for the tracing parent to distinguish - between a syscall stop and SIGTRAP delivery */ - ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) - ? 0x80 : 0)); - /* - * this isn't the same as continuing with a signal, but it will do - * for normal use. strace only continues with a signal if the - * stopping signal is not SIGTRAP. -brl - */ - if (current->exit_code) { - send_sig(current->exit_code, current, 1); - current->exit_code = 0; - } - regs->ARM_ip = ip; -} diff --git a/trunk/arch/arm26/kernel/ptrace.h b/trunk/arch/arm26/kernel/ptrace.h deleted file mode 100644 index 846c9d8d36ed..000000000000 --- a/trunk/arch/arm26/kernel/ptrace.h +++ /dev/null @@ -1,13 +0,0 @@ -/* - * linux/arch/arm26/kernel/ptrace.h - * - * Copyright (C) 2000-2003 Russell King - * Copyright (C) 2003 Ian Molton - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -extern void ptrace_cancel_bpt(struct task_struct *); -extern void ptrace_set_bpt(struct task_struct *); -extern void ptrace_break(struct task_struct *, struct pt_regs *); diff --git a/trunk/arch/arm26/kernel/semaphore.c b/trunk/arch/arm26/kernel/semaphore.c deleted file mode 100644 index 5447a06db3fa..000000000000 --- a/trunk/arch/arm26/kernel/semaphore.c +++ /dev/null @@ -1,222 +0,0 @@ -/* - * ARM semaphore implementation, taken from - * - * i386 semaphore implementation. - * - * (C) Copyright 1999 Linus Torvalds - * (C) Copyright 2003 Ian Molton (ARM26 mods) - * - * Modified for ARM by Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include -#include - -#include - -/* - * Semaphores are implemented using a two-way counter: - * The "count" variable is decremented for each process - * that tries to acquire the semaphore, while the "sleeping" - * variable is a count of such acquires. - * - * Notably, the inline "up()" and "down()" functions can - * efficiently test if they need to do any extra work (up - * needs to do something only if count was negative before - * the increment operation. - * - * "sleeping" and the contention routine ordering is - * protected by the semaphore spinlock. - * - * Note that these functions are only called when there is - * contention on the lock, and as such all this is the - * "non-critical" part of the whole semaphore business. The - * critical part is the inline stuff in - * where we want to avoid any extra jumps and calls. - */ - -/* - * Logic: - * - only on a boundary condition do we need to care. When we go - * from a negative count to a non-negative, we wake people up. - * - when we go from a non-negative count to a negative do we - * (a) synchronize with the "sleeper" count and (b) make sure - * that we're on the wakeup list before we synchronize so that - * we cannot lose wakeup events. - */ - -void __up(struct semaphore *sem) -{ - wake_up(&sem->wait); -} - -static DEFINE_SPINLOCK(semaphore_lock); - -void __sched __down(struct semaphore * sem) -{ - struct task_struct *tsk = current; - DECLARE_WAITQUEUE(wait, tsk); - tsk->state = TASK_UNINTERRUPTIBLE; - add_wait_queue_exclusive(&sem->wait, &wait); - - spin_lock_irq(&semaphore_lock); - sem->sleepers++; - for (;;) { - int sleepers = sem->sleepers; - - /* - * Add "everybody else" into it. They aren't - * playing, because we own the spinlock. - */ - if (!atomic_add_negative(sleepers - 1, &sem->count)) { - sem->sleepers = 0; - break; - } - sem->sleepers = 1; /* us - see -1 above */ - spin_unlock_irq(&semaphore_lock); - - schedule(); - tsk->state = TASK_UNINTERRUPTIBLE; - spin_lock_irq(&semaphore_lock); - } - spin_unlock_irq(&semaphore_lock); - remove_wait_queue(&sem->wait, &wait); - tsk->state = TASK_RUNNING; - wake_up(&sem->wait); -} - -int __sched __down_interruptible(struct semaphore * sem) -{ - int retval = 0; - struct task_struct *tsk = current; - DECLARE_WAITQUEUE(wait, tsk); - tsk->state = TASK_INTERRUPTIBLE; - add_wait_queue_exclusive(&sem->wait, &wait); - - spin_lock_irq(&semaphore_lock); - sem->sleepers ++; - for (;;) { - int sleepers = sem->sleepers; - - /* - * With signals pending, this turns into - * the trylock failure case - we won't be - * sleeping, and we* can't get the lock as - * it has contention. Just correct the count - * and exit. - */ - if (signal_pending(current)) { - retval = -EINTR; - sem->sleepers = 0; - atomic_add(sleepers, &sem->count); - break; - } - - /* - * Add "everybody else" into it. They aren't - * playing, because we own the spinlock. The - * "-1" is because we're still hoping to get - * the lock. - */ - if (!atomic_add_negative(sleepers - 1, &sem->count)) { - sem->sleepers = 0; - break; - } - sem->sleepers = 1; /* us - see -1 above */ - spin_unlock_irq(&semaphore_lock); - - schedule(); - tsk->state = TASK_INTERRUPTIBLE; - spin_lock_irq(&semaphore_lock); - } - spin_unlock_irq(&semaphore_lock); - tsk->state = TASK_RUNNING; - remove_wait_queue(&sem->wait, &wait); - wake_up(&sem->wait); - return retval; -} - -/* - * Trylock failed - make sure we correct for - * having decremented the count. - * - * We could have done the trylock with a - * single "cmpxchg" without failure cases, - * but then it wouldn't work on a 386. - */ -int __down_trylock(struct semaphore * sem) -{ - int sleepers; - unsigned long flags; - - spin_lock_irqsave(&semaphore_lock, flags); - sleepers = sem->sleepers + 1; - sem->sleepers = 0; - - /* - * Add "everybody else" and us into it. They aren't - * playing, because we own the spinlock. - */ - if (!atomic_add_negative(sleepers, &sem->count)) - wake_up(&sem->wait); - - spin_unlock_irqrestore(&semaphore_lock, flags); - return 1; -} - -/* - * The semaphore operations have a special calling sequence that - * allow us to do a simpler in-line version of them. These routines - * need to convert that sequence back into the C sequence when - * there is contention on the semaphore. - * - * ip contains the semaphore pointer on entry. Save the C-clobbered - * registers (r0 to r3 and lr), but not ip, as we use it as a return - * value in some cases.. - */ -asm(" .section .sched.text , #alloc, #execinstr \n\ - .align 5 \n\ - .globl __down_failed \n\ -__down_failed: \n\ - stmfd sp!, {r0 - r3, lr} \n\ - mov r0, ip \n\ - bl __down \n\ - ldmfd sp!, {r0 - r3, pc}^ \n\ - \n\ - .align 5 \n\ - .globl __down_interruptible_failed \n\ -__down_interruptible_failed: \n\ - stmfd sp!, {r0 - r3, lr} \n\ - mov r0, ip \n\ - bl __down_interruptible \n\ - mov ip, r0 \n\ - ldmfd sp!, {r0 - r3, pc}^ \n\ - \n\ - .align 5 \n\ - .globl __down_trylock_failed \n\ -__down_trylock_failed: \n\ - stmfd sp!, {r0 - r3, lr} \n\ - mov r0, ip \n\ - bl __down_trylock \n\ - mov ip, r0 \n\ - ldmfd sp!, {r0 - r3, pc}^ \n\ - \n\ - .align 5 \n\ - .globl __up_wakeup \n\ -__up_wakeup: \n\ - stmfd sp!, {r0 - r3, lr} \n\ - mov r0, ip \n\ - bl __up \n\ - ldmfd sp!, {r0 - r3, pc}^ \n\ - "); - -EXPORT_SYMBOL(__down_failed); -EXPORT_SYMBOL(__down_interruptible_failed); -EXPORT_SYMBOL(__down_trylock_failed); -EXPORT_SYMBOL(__up_wakeup); - diff --git a/trunk/arch/arm26/kernel/setup.c b/trunk/arch/arm26/kernel/setup.c deleted file mode 100644 index 0e006c6cd5a0..000000000000 --- a/trunk/arch/arm26/kernel/setup.c +++ /dev/null @@ -1,572 +0,0 @@ -/* - * linux/arch/arm26/kernel/setup.c - * - * Copyright (C) 1995-2001 Russell King - * Copyright (C) 2003 Ian Molton - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include - -#include - -#ifndef MEM_SIZE -#define MEM_SIZE (16*1024*1024) -#endif - -#ifdef CONFIG_PREEMPT -DEFINE_SPINLOCK(kernel_flag); -#endif - -#if defined(CONFIG_FPE_NWFPE) -char fpe_type[8]; - -static int __init fpe_setup(char *line) -{ - memcpy(fpe_type, line, 8); - return 1; -} - -__setup("fpe=", fpe_setup); -#endif - -extern void paging_init(struct meminfo *); -extern void convert_to_tag_list(struct tag *tags); -extern void squash_mem_tags(struct tag *tag); -extern void bootmem_init(struct meminfo *); -extern int root_mountflags; -extern int _stext, _text, _etext, _edata, _end; -#ifdef CONFIG_XIP_KERNEL -extern int _endtext, _sdata; -#endif - - -unsigned int processor_id; -unsigned int __machine_arch_type; -unsigned int system_rev; -unsigned int system_serial_low; -unsigned int system_serial_high; -unsigned int elf_hwcap; -unsigned int memc_ctrl_reg; -unsigned int number_mfm_drives; - -struct processor processor; - -char elf_platform[ELF_PLATFORM_SIZE]; - -unsigned long phys_initrd_start __initdata = 0; -unsigned long phys_initrd_size __initdata = 0; -static struct meminfo meminfo __initdata = { 0, }; -static struct proc_info_item proc_info; -static const char *machine_name; -static char __initdata command_line[COMMAND_LINE_SIZE]; - -static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE; - -/* - * Standard memory resources - */ -static struct resource mem_res[] = { - { "Video RAM", 0, 0, IORESOURCE_MEM }, - { "Kernel code", 0, 0, IORESOURCE_MEM }, - { "Kernel data", 0, 0, IORESOURCE_MEM } -}; - -#define video_ram mem_res[0] -#define kernel_code mem_res[1] -#define kernel_data mem_res[2] - -static struct resource io_res[] = { - { "reserved", 0x3bc, 0x3be, IORESOURCE_IO | IORESOURCE_BUSY }, - { "reserved", 0x378, 0x37f, IORESOURCE_IO | IORESOURCE_BUSY }, - { "reserved", 0x278, 0x27f, IORESOURCE_IO | IORESOURCE_BUSY } -}; - -#define lp0 io_res[0] -#define lp1 io_res[1] -#define lp2 io_res[2] - -#define dump_cpu_info() do { } while (0) - -static void __init setup_processor(void) -{ - extern struct proc_info_list __proc_info_begin, __proc_info_end; - struct proc_info_list *list; - - /* - * locate processor in the list of supported processor - * types. The linker builds this table for us from the - * entries in arch/arm26/mm/proc-*.S - */ - for (list = &__proc_info_begin; list < &__proc_info_end ; list++) - if ((processor_id & list->cpu_mask) == list->cpu_val) - break; - - /* - * If processor type is unrecognised, then we - * can do nothing... - */ - if (list >= &__proc_info_end) { - printk("CPU configuration botched (ID %08x), unable " - "to continue.\n", processor_id); - while (1); - } - - proc_info = *list->info; - processor = *list->proc; - - - printk("CPU: %s %s revision %d\n", - proc_info.manufacturer, proc_info.cpu_name, - (int)processor_id & 15); - - dump_cpu_info(); - - sprintf(init_utsname()->machine, "%s", list->arch_name); - sprintf(elf_platform, "%s", list->elf_name); - elf_hwcap = list->elf_hwcap; - - cpu_proc_init(); -} - -/* - * Initial parsing of the command line. We need to pick out the - * memory size. We look for mem=size@start, where start and size - * are "size[KkMm]" - */ -static void __init -parse_cmdline(struct meminfo *mi, char **cmdline_p, char *from) -{ - char c = ' ', *to = command_line; - int usermem = 0, len = 0; - - for (;;) { - if (c == ' ' && !memcmp(from, "mem=", 4)) { - unsigned long size, start; - - if (to != command_line) - to -= 1; - - /* - * If the user specifies memory size, we - * blow away any automatically generated - * size. - */ - if (usermem == 0) { - usermem = 1; - mi->nr_banks = 0; - } - - start = PHYS_OFFSET; - size = memparse(from + 4, &from); - if (*from == '@') - start = memparse(from + 1, &from); - - mi->bank[mi->nr_banks].start = start; - mi->bank[mi->nr_banks].size = size; - mi->bank[mi->nr_banks].node = PHYS_TO_NID(start); - mi->nr_banks += 1; - } - c = *from++; - if (!c) - break; - if (COMMAND_LINE_SIZE <= ++len) - break; - *to++ = c; - } - *to = '\0'; - *cmdline_p = command_line; -} - -static void __init -setup_ramdisk(int doload, int prompt, int image_start, unsigned int rd_sz) -{ -#ifdef CONFIG_BLK_DEV_RAM - extern int rd_size, rd_image_start, rd_prompt, rd_doload; - - rd_image_start = image_start; - rd_prompt = prompt; - rd_doload = doload; - - if (rd_sz) - rd_size = rd_sz; -#endif -} - -static void __init -request_standard_resources(struct meminfo *mi) -{ - struct resource *res; - int i; - - kernel_code.start = init_mm.start_code; - kernel_code.end = init_mm.end_code - 1; -#ifdef CONFIG_XIP_KERNEL - kernel_data.start = init_mm.start_data; -#else - kernel_data.start = init_mm.end_code; -#endif - kernel_data.end = init_mm.brk - 1; - - for (i = 0; i < mi->nr_banks; i++) { - unsigned long virt_start, virt_end; - - if (mi->bank[i].size == 0) - continue; - - virt_start = mi->bank[i].start; - virt_end = virt_start + mi->bank[i].size - 1; - - res = alloc_bootmem_low(sizeof(*res)); - res->name = "System RAM"; - res->start = virt_start; - res->end = virt_end; - res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; - - request_resource(&iomem_resource, res); - - if (kernel_code.start >= res->start && - kernel_code.end <= res->end) - request_resource(res, &kernel_code); - if (kernel_data.start >= res->start && - kernel_data.end <= res->end) - request_resource(res, &kernel_data); - } - -/* FIXME - needed? if (mdesc->video_start) { - video_ram.start = mdesc->video_start; - video_ram.end = mdesc->video_end; - request_resource(&iomem_resource, &video_ram); - }*/ - - /* - * Some machines don't have the possibility of ever - * possessing lp1 or lp2 - */ - if (0) /* FIXME - need to do this for A5k at least */ - request_resource(&ioport_resource, &lp0); -} - -/* - * Tag parsing. - * - * This is the new way of passing data to the kernel at boot time. Rather - * than passing a fixed inflexible structure to the kernel, we pass a list - * of variable-sized tags to the kernel. The first tag must be a ATAG_CORE - * tag for the list to be recognised (to distinguish the tagged list from - * a param_struct). The list is terminated with a zero-length tag (this tag - * is not parsed in any way). - */ -static int __init parse_tag_core(const struct tag *tag) -{ - if (tag->hdr.size > 2) { - if ((tag->u.core.flags & 1) == 0) - root_mountflags &= ~MS_RDONLY; - ROOT_DEV = old_decode_dev(tag->u.core.rootdev); - } - return 0; -} - -__tagtable(ATAG_CORE, parse_tag_core); - -static int __init parse_tag_mem32(const struct tag *tag) -{ - if (meminfo.nr_banks >= NR_BANKS) { - printk(KERN_WARNING - "Ignoring memory bank 0x%08x size %dKB\n", - tag->u.mem.start, tag->u.mem.size / 1024); - return -EINVAL; - } - meminfo.bank[meminfo.nr_banks].start = tag->u.mem.start; - meminfo.bank[meminfo.nr_banks].size = tag->u.mem.size; - meminfo.bank[meminfo.nr_banks].node = PHYS_TO_NID(tag->u.mem.start); - meminfo.nr_banks += 1; - - return 0; -} - -__tagtable(ATAG_MEM, parse_tag_mem32); - -#if defined(CONFIG_DUMMY_CONSOLE) -struct screen_info screen_info = { - .orig_video_lines = 30, - .orig_video_cols = 80, - .orig_video_mode = 0, - .orig_video_ega_bx = 0, - .orig_video_isVGA = 1, - .orig_video_points = 8 -}; - -static int __init parse_tag_videotext(const struct tag *tag) -{ - screen_info.orig_x = tag->u.videotext.x; - screen_info.orig_y = tag->u.videotext.y; - screen_info.orig_video_page = tag->u.videotext.video_page; - screen_info.orig_video_mode = tag->u.videotext.video_mode; - screen_info.orig_video_cols = tag->u.videotext.video_cols; - screen_info.orig_video_ega_bx = tag->u.videotext.video_ega_bx; - screen_info.orig_video_lines = tag->u.videotext.video_lines; - screen_info.orig_video_isVGA = tag->u.videotext.video_isvga; - screen_info.orig_video_points = tag->u.videotext.video_points; - return 0; -} - -__tagtable(ATAG_VIDEOTEXT, parse_tag_videotext); -#endif - -static int __init parse_tag_acorn(const struct tag *tag) -{ - memc_ctrl_reg = tag->u.acorn.memc_control_reg; - number_mfm_drives = tag->u.acorn.adfsdrives; - return 0; -} - -__tagtable(ATAG_ACORN, parse_tag_acorn); - -static int __init parse_tag_ramdisk(const struct tag *tag) -{ - setup_ramdisk((tag->u.ramdisk.flags & 1) == 0, - (tag->u.ramdisk.flags & 2) == 0, - tag->u.ramdisk.start, tag->u.ramdisk.size); - return 0; -} - -__tagtable(ATAG_RAMDISK, parse_tag_ramdisk); - -static int __init parse_tag_initrd(const struct tag *tag) -{ - printk(KERN_WARNING "ATAG_INITRD is deprecated; please update your bootloader. \n"); - phys_initrd_start = (unsigned long)tag->u.initrd.start; - phys_initrd_size = (unsigned long)tag->u.initrd.size; - return 0; -} - -__tagtable(ATAG_INITRD, parse_tag_initrd); - -static int __init parse_tag_initrd2(const struct tag *tag) -{ - printk(KERN_WARNING "ATAG_INITRD is deprecated; please update your bootloader. \n"); - phys_initrd_start = (unsigned long)tag->u.initrd.start; - phys_initrd_size = (unsigned long)tag->u.initrd.size; - return 0; -} - -__tagtable(ATAG_INITRD2, parse_tag_initrd2); - -static int __init parse_tag_serialnr(const struct tag *tag) -{ - system_serial_low = tag->u.serialnr.low; - system_serial_high = tag->u.serialnr.high; - return 0; -} - -__tagtable(ATAG_SERIAL, parse_tag_serialnr); - -static int __init parse_tag_revision(const struct tag *tag) -{ - system_rev = tag->u.revision.rev; - return 0; -} - -__tagtable(ATAG_REVISION, parse_tag_revision); - -static int __init parse_tag_cmdline(const struct tag *tag) -{ - strncpy(default_command_line, tag->u.cmdline.cmdline, COMMAND_LINE_SIZE); - default_command_line[COMMAND_LINE_SIZE - 1] = '\0'; - return 0; -} - -__tagtable(ATAG_CMDLINE, parse_tag_cmdline); - -/* - * Scan the tag table for this tag, and call its parse function. - * The tag table is built by the linker from all the __tagtable - * declarations. - */ -static int __init parse_tag(const struct tag *tag) -{ - extern struct tagtable __tagtable_begin, __tagtable_end; - struct tagtable *t; - - for (t = &__tagtable_begin; t < &__tagtable_end; t++) - if (tag->hdr.tag == t->tag) { - t->parse(tag); - break; - } - - return t < &__tagtable_end; -} - -/* - * Parse all tags in the list, checking both the global and architecture - * specific tag tables. - */ -static void __init parse_tags(const struct tag *t) -{ - for (; t->hdr.size; t = tag_next(t)) - if (!parse_tag(t)) - printk(KERN_WARNING - "Ignoring unrecognised tag 0x%08x\n", - t->hdr.tag); -} - -/* - * This holds our defaults. - */ -static struct init_tags { - struct tag_header hdr1; - struct tag_core core; - struct tag_header hdr2; - struct tag_mem32 mem; - struct tag_header hdr3; -} init_tags __initdata = { - { tag_size(tag_core), ATAG_CORE }, - { 1, PAGE_SIZE, 0xff }, - { tag_size(tag_mem32), ATAG_MEM }, - { MEM_SIZE, PHYS_OFFSET }, - { 0, ATAG_NONE } -}; - -void __init setup_arch(char **cmdline_p) -{ - struct tag *tags = (struct tag *)&init_tags; - char *from = default_command_line; - - setup_processor(); - if(machine_arch_type == MACH_TYPE_A5K) - machine_name = "A5000"; - else if(machine_arch_type == MACH_TYPE_ARCHIMEDES) - machine_name = "Archimedes"; - else - machine_name = "UNKNOWN"; - - //FIXME - the tag struct is always copied here but this is a block - // of RAM that is accidentally reserved along with video RAM. perhaps - // it would be a good idea to explicitly reserve this? - - tags = (struct tag *)0x0207c000; - - /* - * If we have the old style parameters, convert them to - * a tag list. - */ - if (tags->hdr.tag != ATAG_CORE) - convert_to_tag_list(tags); - if (tags->hdr.tag != ATAG_CORE) - tags = (struct tag *)&init_tags; - if (tags->hdr.tag == ATAG_CORE) { - if (meminfo.nr_banks != 0) - squash_mem_tags(tags); - parse_tags(tags); - } - - init_mm.start_code = (unsigned long) &_text; -#ifndef CONFIG_XIP_KERNEL - init_mm.end_code = (unsigned long) &_etext; -#else - init_mm.end_code = (unsigned long) &_endtext; - init_mm.start_data = (unsigned long) &_sdata; -#endif - init_mm.end_data = (unsigned long) &_edata; - init_mm.brk = (unsigned long) &_end; - - memcpy(boot_command_line, from, COMMAND_LINE_SIZE); - boot_command_line[COMMAND_LINE_SIZE-1] = '\0'; - parse_cmdline(&meminfo, cmdline_p, from); - bootmem_init(&meminfo); - paging_init(&meminfo); - request_standard_resources(&meminfo); - -#ifdef CONFIG_VT -#if defined(CONFIG_DUMMY_CONSOLE) - conswitchp = &dummy_con; -#endif -#endif -} - -static const char *hwcap_str[] = { - "swp", - "half", - "thumb", - "26bit", - "fastmult", - "fpa", - "vfp", - "edsp", - NULL -}; - -static int c_show(struct seq_file *m, void *v) -{ - int i; - - seq_printf(m, "Processor\t: %s %s rev %d (%s)\n", - proc_info.manufacturer, proc_info.cpu_name, - (int)processor_id & 15, elf_platform); - - seq_printf(m, "BogoMIPS\t: %lu.%02lu\n", - loops_per_jiffy / (500000/HZ), - (loops_per_jiffy / (5000/HZ)) % 100); - - /* dump out the processor features */ - seq_puts(m, "Features\t: "); - - for (i = 0; hwcap_str[i]; i++) - if (elf_hwcap & (1 << i)) - seq_printf(m, "%s ", hwcap_str[i]); - - seq_puts(m, "\n"); - - seq_printf(m, "CPU part\t\t: %07x\n", processor_id >> 4); - seq_printf(m, "CPU revision\t: %d\n\n", processor_id & 15); - seq_printf(m, "Hardware\t: %s\n", machine_name); - seq_printf(m, "Revision\t: %04x\n", system_rev); - seq_printf(m, "Serial\t\t: %08x%08x\n", - system_serial_high, system_serial_low); - - return 0; -} - -static void *c_start(struct seq_file *m, loff_t *pos) -{ - return *pos < 1 ? (void *)1 : NULL; -} - -static void *c_next(struct seq_file *m, void *v, loff_t *pos) -{ - ++*pos; - return NULL; -} - -static void c_stop(struct seq_file *m, void *v) -{ -} - -struct seq_operations cpuinfo_op = { - .start = c_start, - .next = c_next, - .stop = c_stop, - .show = c_show -}; diff --git a/trunk/arch/arm26/kernel/signal.c b/trunk/arch/arm26/kernel/signal.c deleted file mode 100644 index 379b82dc645f..000000000000 --- a/trunk/arch/arm26/kernel/signal.c +++ /dev/null @@ -1,538 +0,0 @@ -/* - * linux/arch/arm26/kernel/signal.c - * - * Copyright (C) 1995-2002 Russell King - * Copyright (C) 2003 Ian Molton (ARM26) - * - * FIXME!!! This is probably very broken (13/05/2003) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -#include "ptrace.h" - -#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) - -/* - * For ARM syscalls, we encode the syscall number into the instruction. - */ -#define SWI_SYS_SIGRETURN (0xef000000|(__NR_sigreturn)) -#define SWI_SYS_RT_SIGRETURN (0xef000000|(__NR_rt_sigreturn)) - -static int do_signal(sigset_t *oldset, struct pt_regs * regs, int syscall); - -/* - * atomically swap in the new signal mask, and wait for a signal. - */ -asmlinkage int sys_sigsuspend(int restart, unsigned long oldmask, old_sigset_t mask, struct pt_regs *regs) -{ - sigset_t saveset; - - mask &= _BLOCKABLE; - spin_lock_irq(¤t->sighand->siglock); - saveset = current->blocked; - siginitset(¤t->blocked, mask); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - regs->ARM_r0 = -EINTR; - - while (1) { - current->state = TASK_INTERRUPTIBLE; - schedule(); - if (do_signal(&saveset, regs, 0)) - return regs->ARM_r0; - } -} - -asmlinkage int -sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize, struct pt_regs *regs) -{ - sigset_t saveset, newset; - - /* XXX: Don't preclude handling different sized sigset_t's. */ - if (sigsetsize != sizeof(sigset_t)) - return -EINVAL; - - if (copy_from_user(&newset, unewset, sizeof(newset))) - return -EFAULT; - sigdelsetmask(&newset, ~_BLOCKABLE); - - spin_lock_irq(¤t->sighand->siglock); - saveset = current->blocked; - current->blocked = newset; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - regs->ARM_r0 = -EINTR; - - while (1) { - current->state = TASK_INTERRUPTIBLE; - schedule(); - if (do_signal(&saveset, regs, 0)) - return regs->ARM_r0; - } -} - -asmlinkage int -sys_sigaction(int sig, const struct old_sigaction *act, - struct old_sigaction *oact) -{ - struct k_sigaction new_ka, old_ka; - int ret; - - if (act) { - old_sigset_t mask; - if (!access_ok(VERIFY_READ, act, sizeof(*act)) || - __get_user(new_ka.sa.sa_handler, &act->sa_handler) || - __get_user(new_ka.sa.sa_restorer, &act->sa_restorer)) - return -EFAULT; - __get_user(new_ka.sa.sa_flags, &act->sa_flags); - __get_user(mask, &act->sa_mask); - siginitset(&new_ka.sa.sa_mask, mask); - } - - ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); - - if (!ret && oact) { - if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) || - __put_user(old_ka.sa.sa_handler, &oact->sa_handler) || - __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer)) - return -EFAULT; - __put_user(old_ka.sa.sa_flags, &oact->sa_flags); - __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask); - } - - return ret; -} - -/* - * Do a signal return; undo the signal stack. - */ -struct sigframe -{ - struct sigcontext sc; - unsigned long extramask[_NSIG_WORDS-1]; - unsigned long retcode; -}; - -struct rt_sigframe -{ - struct siginfo *pinfo; - void *puc; - struct siginfo info; - struct ucontext uc; - unsigned long retcode; -}; - -static int -restore_sigcontext(struct pt_regs *regs, struct sigcontext *sc) -{ - int err = 0; - - __get_user_error(regs->ARM_r0, &sc->arm_r0, err); - __get_user_error(regs->ARM_r1, &sc->arm_r1, err); - __get_user_error(regs->ARM_r2, &sc->arm_r2, err); - __get_user_error(regs->ARM_r3, &sc->arm_r3, err); - __get_user_error(regs->ARM_r4, &sc->arm_r4, err); - __get_user_error(regs->ARM_r5, &sc->arm_r5, err); - __get_user_error(regs->ARM_r6, &sc->arm_r6, err); - __get_user_error(regs->ARM_r7, &sc->arm_r7, err); - __get_user_error(regs->ARM_r8, &sc->arm_r8, err); - __get_user_error(regs->ARM_r9, &sc->arm_r9, err); - __get_user_error(regs->ARM_r10, &sc->arm_r10, err); - __get_user_error(regs->ARM_fp, &sc->arm_fp, err); - __get_user_error(regs->ARM_ip, &sc->arm_ip, err); - __get_user_error(regs->ARM_sp, &sc->arm_sp, err); - __get_user_error(regs->ARM_lr, &sc->arm_lr, err); - __get_user_error(regs->ARM_pc, &sc->arm_pc, err); - - err |= !valid_user_regs(regs); - - return err; -} - -asmlinkage int sys_sigreturn(struct pt_regs *regs) -{ - struct sigframe *frame; - sigset_t set; - - /* - * Since we stacked the signal on a 64-bit boundary, - * then 'sp' should be word aligned here. If it's - * not, then the user is trying to mess with us. - */ - if (regs->ARM_sp & 7) - goto badframe; - - frame = (struct sigframe *)regs->ARM_sp; - - if (!access_ok(VERIFY_READ, frame, sizeof (*frame))) - goto badframe; - if (__get_user(set.sig[0], &frame->sc.oldmask) - || (_NSIG_WORDS > 1 - && __copy_from_user(&set.sig[1], &frame->extramask, - sizeof(frame->extramask)))) - goto badframe; - - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - if (restore_sigcontext(regs, &frame->sc)) - goto badframe; - - /* Send SIGTRAP if we're single-stepping */ - if (current->ptrace & PT_SINGLESTEP) { - ptrace_cancel_bpt(current); - send_sig(SIGTRAP, current, 1); - } - - return regs->ARM_r0; - -badframe: - force_sig(SIGSEGV, current); - return 0; -} - -asmlinkage int sys_rt_sigreturn(struct pt_regs *regs) -{ - struct rt_sigframe *frame; - sigset_t set; - - /* - * Since we stacked the signal on a 64-bit boundary, - * then 'sp' should be word aligned here. If it's - * not, then the user is trying to mess with us. - */ - if (regs->ARM_sp & 7) - goto badframe; - - frame = (struct rt_sigframe *)regs->ARM_sp; - - if (!access_ok(VERIFY_READ, frame, sizeof (*frame))) - goto badframe; - if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) - goto badframe; - - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - if (restore_sigcontext(regs, &frame->uc.uc_mcontext)) - goto badframe; - - /* Send SIGTRAP if we're single-stepping */ - if (current->ptrace & PT_SINGLESTEP) { - ptrace_cancel_bpt(current); - send_sig(SIGTRAP, current, 1); - } - - return regs->ARM_r0; - -badframe: - force_sig(SIGSEGV, current); - return 0; -} - -static int -setup_sigcontext(struct sigcontext *sc, /*struct _fpstate *fpstate,*/ - struct pt_regs *regs, unsigned long mask) -{ - int err = 0; - - __put_user_error(regs->ARM_r0, &sc->arm_r0, err); - __put_user_error(regs->ARM_r1, &sc->arm_r1, err); - __put_user_error(regs->ARM_r2, &sc->arm_r2, err); - __put_user_error(regs->ARM_r3, &sc->arm_r3, err); - __put_user_error(regs->ARM_r4, &sc->arm_r4, err); - __put_user_error(regs->ARM_r5, &sc->arm_r5, err); - __put_user_error(regs->ARM_r6, &sc->arm_r6, err); - __put_user_error(regs->ARM_r7, &sc->arm_r7, err); - __put_user_error(regs->ARM_r8, &sc->arm_r8, err); - __put_user_error(regs->ARM_r9, &sc->arm_r9, err); - __put_user_error(regs->ARM_r10, &sc->arm_r10, err); - __put_user_error(regs->ARM_fp, &sc->arm_fp, err); - __put_user_error(regs->ARM_ip, &sc->arm_ip, err); - __put_user_error(regs->ARM_sp, &sc->arm_sp, err); - __put_user_error(regs->ARM_lr, &sc->arm_lr, err); - __put_user_error(regs->ARM_pc, &sc->arm_pc, err); - - __put_user_error(current->thread.trap_no, &sc->trap_no, err); - __put_user_error(current->thread.error_code, &sc->error_code, err); - __put_user_error(current->thread.address, &sc->fault_address, err); - __put_user_error(mask, &sc->oldmask, err); - - return err; -} - -static inline void * -get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, int framesize) -{ - unsigned long sp = regs->ARM_sp; - - /* - * This is the X/Open sanctioned signal stack switching. - */ - if ((ka->sa.sa_flags & SA_ONSTACK) && !sas_ss_flags(sp)) - sp = current->sas_ss_sp + current->sas_ss_size; - - /* - * ATPCS B01 mandates 8-byte alignment - */ - return (void *)((sp - framesize) & ~7); -} - -static int -setup_return(struct pt_regs *regs, struct k_sigaction *ka, - unsigned long *rc, void *frame, int usig) -{ - unsigned long handler = (unsigned long)ka->sa.sa_handler; - unsigned long retcode; - - if (ka->sa.sa_flags & SA_RESTORER) { - retcode = (unsigned long)ka->sa.sa_restorer; - } else { - - if (__put_user((ka->sa.sa_flags & SA_SIGINFO)?SWI_SYS_RT_SIGRETURN:SWI_SYS_SIGRETURN, rc)) - return 1; - - retcode = ((unsigned long)rc); - } - - regs->ARM_r0 = usig; - regs->ARM_sp = (unsigned long)frame; - regs->ARM_lr = retcode; - regs->ARM_pc = handler & ~3; - - return 0; -} - -static int -setup_frame(int usig, struct k_sigaction *ka, sigset_t *set, struct pt_regs *regs) -{ - struct sigframe *frame = get_sigframe(ka, regs, sizeof(*frame)); - int err = 0; - - if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame))) - return 1; - - err |= setup_sigcontext(&frame->sc, /*&frame->fpstate,*/ regs, set->sig[0]); - - if (_NSIG_WORDS > 1) { - err |= __copy_to_user(frame->extramask, &set->sig[1], - sizeof(frame->extramask)); - } - - if (err == 0) - err = setup_return(regs, ka, &frame->retcode, frame, usig); - - return err; -} - -static int -setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info, - sigset_t *set, struct pt_regs *regs) -{ - struct rt_sigframe *frame = get_sigframe(ka, regs, sizeof(*frame)); - int err = 0; - - if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame))) - return 1; - - __put_user_error(&frame->info, &frame->pinfo, err); - __put_user_error(&frame->uc, &frame->puc, err); - err |= copy_siginfo_to_user(&frame->info, info); - - /* Clear all the bits of the ucontext we don't use. */ - err |= __clear_user(&frame->uc, offsetof(struct ucontext, uc_mcontext)); - - err |= setup_sigcontext(&frame->uc.uc_mcontext, /*&frame->fpstate,*/ - regs, set->sig[0]); - err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); - - if (err == 0) - err = setup_return(regs, ka, &frame->retcode, frame, usig); - - if (err == 0) { - /* - * For realtime signals we must also set the second and third - * arguments for the signal handler. - * -- Peter Maydell 2000-12-06 - */ - regs->ARM_r1 = (unsigned long)frame->pinfo; - regs->ARM_r2 = (unsigned long)frame->puc; - } - - return err; -} - -static inline void restart_syscall(struct pt_regs *regs) -{ - regs->ARM_r0 = regs->ARM_ORIG_r0; - regs->ARM_pc -= 4; -} - -/* - * OK, we're invoking a handler - */ -static void -handle_signal(unsigned long sig, siginfo_t *info, sigset_t *oldset, - struct pt_regs * regs, int syscall) -{ - struct thread_info *thread = current_thread_info(); - struct task_struct *tsk = current; - struct k_sigaction *ka = &tsk->sighand->action[sig-1]; - int usig = sig; - int ret; - - /* - * If we were from a system call, check for system call restarting... - */ - if (syscall) { - switch (regs->ARM_r0) { - case -ERESTART_RESTARTBLOCK: - current_thread_info()->restart_block.fn = - do_no_restart_syscall; - case -ERESTARTNOHAND: - regs->ARM_r0 = -EINTR; - break; - case -ERESTARTSYS: - if (!(ka->sa.sa_flags & SA_RESTART)) { - regs->ARM_r0 = -EINTR; - break; - } - /* fallthrough */ - case -ERESTARTNOINTR: - restart_syscall(regs); - } - } - - /* - * translate the signal - */ - if (usig < 32 && thread->exec_domain && thread->exec_domain->signal_invmap) - usig = thread->exec_domain->signal_invmap[usig]; - - /* - * Set up the stack frame - */ - if (ka->sa.sa_flags & SA_SIGINFO) - ret = setup_rt_frame(usig, ka, info, oldset, regs); - else - ret = setup_frame(usig, ka, oldset, regs); - - /* - * Check that the resulting registers are actually sane. - */ - ret |= !valid_user_regs(regs); - - if (ret == 0) { - if (ka->sa.sa_flags & SA_ONESHOT) - ka->sa.sa_handler = SIG_DFL; - - spin_lock_irq(&tsk->sighand->siglock); - sigorsets(&tsk->blocked, &tsk->blocked, - &ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(&tsk->blocked, sig); - recalc_sigpending(); - spin_unlock_irq(&tsk->sighand->siglock); - return; - } - - force_sigsegv(sig, tsk); -} - -/* - * Note that 'init' is a special process: it doesn't get signals it doesn't - * want to handle. Thus you cannot kill init even with a SIGKILL even by - * mistake. - * - * Note that we go through the signals twice: once to check the signals that - * the kernel can handle, and then we build all the user-level signal handling - * stack-frames in one go after that. - */ -static int do_signal(sigset_t *oldset, struct pt_regs *regs, int syscall) -{ - siginfo_t info; - int signr; - struct k_sigaction ka; - - /* - * We want the common case to go fast, which - * is why we may in certain cases get here from - * kernel mode. Just return without doing anything - * if so. - */ - if (!user_mode(regs)) - return 0; - - if (current->ptrace & PT_SINGLESTEP) - ptrace_cancel_bpt(current); - - signr = get_signal_to_deliver(&info, &ka, regs, NULL); - if (signr > 0) { - handle_signal(signr, &info, oldset, regs, syscall); - if (current->ptrace & PT_SINGLESTEP) - ptrace_set_bpt(current); - return 1; - } - - /* - * No signal to deliver to the process - restart the syscall. - */ - if (syscall) { - if (regs->ARM_r0 == -ERESTART_RESTARTBLOCK) { - u32 *usp; - - regs->ARM_sp -= 12; - usp = (u32 *)regs->ARM_sp; - - put_user(regs->ARM_pc, &usp[0]); - /* swi __NR_restart_syscall */ - put_user(0xef000000 | __NR_restart_syscall, &usp[1]); - /* ldr pc, [sp], #12 */ -// FIXME!!! is #12 correct there? - put_user(0xe49df00c, &usp[2]); - - regs->ARM_pc = regs->ARM_sp + 4; - } - if (regs->ARM_r0 == -ERESTARTNOHAND || - regs->ARM_r0 == -ERESTARTSYS || - regs->ARM_r0 == -ERESTARTNOINTR) { - restart_syscall(regs); - } - } - if (current->ptrace & PT_SINGLESTEP) - ptrace_set_bpt(current); - return 0; -} - -asmlinkage void -do_notify_resume(struct pt_regs *regs, unsigned int thread_flags, int syscall) -{ - if (thread_flags & _TIF_SIGPENDING) - do_signal(¤t->blocked, regs, syscall); -} diff --git a/trunk/arch/arm26/kernel/sys_arm.c b/trunk/arch/arm26/kernel/sys_arm.c deleted file mode 100644 index dc05aba58baf..000000000000 --- a/trunk/arch/arm26/kernel/sys_arm.c +++ /dev/null @@ -1,323 +0,0 @@ -/* - * linux/arch/arm26/kernel/sys_arm.c - * - * Copyright (C) People who wrote linux/arch/i386/kernel/sys_i386.c - * Copyright (C) 1995, 1996 Russell King. - * Copyright (C) 2003 Ian Molton. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This file contains various random system calls that - * have a non-standard calling sequence on the Linux/arm - * platform. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -extern unsigned long do_mremap(unsigned long addr, unsigned long old_len, - unsigned long new_len, unsigned long flags, - unsigned long new_addr); - -/* - * sys_pipe() is the normal C calling standard for creating - * a pipe. It's not the way unix traditionally does this, though. - */ -asmlinkage int sys_pipe(unsigned long * fildes) -{ - int fd[2]; - int error; - - error = do_pipe(fd); - if (!error) { - if (copy_to_user(fildes, fd, 2*sizeof(int))) - error = -EFAULT; - } - return error; -} - -/* common code for old and new mmaps */ -inline long do_mmap2( - unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - int error = -EINVAL; - struct file * file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - - /* - * If we are doing a fixed mapping, and address < FIRST_USER_ADDRESS, - * then deny it. - */ - if (flags & MAP_FIXED && addr < FIRST_USER_ADDRESS) - goto out; - - error = -EBADF; - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - -struct mmap_arg_struct { - unsigned long addr; - unsigned long len; - unsigned long prot; - unsigned long flags; - unsigned long fd; - unsigned long offset; -}; - -asmlinkage int old_mmap(struct mmap_arg_struct *arg) -{ - int error = -EFAULT; - struct mmap_arg_struct a; - - if (copy_from_user(&a, arg, sizeof(a))) - goto out; - - error = -EINVAL; - if (a.offset & ~PAGE_MASK) - goto out; - - error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); -out: - return error; -} - -asmlinkage unsigned long -sys_arm_mremap(unsigned long addr, unsigned long old_len, - unsigned long new_len, unsigned long flags, - unsigned long new_addr) -{ - unsigned long ret = -EINVAL; - - /* - * If we are doing a fixed mapping, and address < FIRST_USER_ADDRESS, - * then deny it. - */ - if (flags & MREMAP_FIXED && new_addr < FIRST_USER_ADDRESS) - goto out; - - down_write(¤t->mm->mmap_sem); - ret = do_mremap(addr, old_len, new_len, flags, new_addr); - up_write(¤t->mm->mmap_sem); - -out: - return ret; -} - -/* - * Perform the select(nd, in, out, ex, tv) and mmap() system - * calls. - */ - -struct sel_arg_struct { - unsigned long n; - fd_set *inp, *outp, *exp; - struct timeval *tvp; -}; - -asmlinkage int old_select(struct sel_arg_struct *arg) -{ - struct sel_arg_struct a; - - if (copy_from_user(&a, arg, sizeof(a))) - return -EFAULT; - /* sys_select() does the appropriate kernel locking */ - return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp); -} - -/* - * sys_ipc() is the de-multiplexer for the SysV IPC calls.. - * - * This is really horribly ugly. - */ -asmlinkage int sys_ipc (uint call, int first, int second, int third, void *ptr, long fifth) -{ - int version, ret; - - version = call >> 16; /* hack for backward compatibility */ - call &= 0xffff; - - switch (call) { - case SEMOP: - return sys_semop (first, (struct sembuf *)ptr, second); - case SEMGET: - return sys_semget (first, second, third); - case SEMCTL: { - union semun fourth; - if (!ptr) - return -EINVAL; - if (get_user(fourth.__pad, (void **) ptr)) - return -EFAULT; - return sys_semctl (first, second, third, fourth); - } - - case MSGSND: - return sys_msgsnd (first, (struct msgbuf *) ptr, - second, third); - case MSGRCV: - switch (version) { - case 0: { - struct ipc_kludge tmp; - if (!ptr) - return -EINVAL; - if (copy_from_user(&tmp,(struct ipc_kludge *) ptr, - sizeof (tmp))) - return -EFAULT; - return sys_msgrcv (first, tmp.msgp, second, - tmp.msgtyp, third); - } - default: - return sys_msgrcv (first, - (struct msgbuf *) ptr, - second, fifth, third); - } - case MSGGET: - return sys_msgget ((key_t) first, second); - case MSGCTL: - return sys_msgctl (first, second, (struct msqid_ds *) ptr); - - case SHMAT: - switch (version) { - default: { - ulong raddr; - ret = do_shmat (first, (char *) ptr, second, &raddr); - if (ret) - return ret; - return put_user (raddr, (ulong *) third); - } - case 1: /* iBCS2 emulator entry point */ - if (!segment_eq(get_fs(), get_ds())) - return -EINVAL; - return do_shmat (first, (char *) ptr, - second, (ulong *) third); - } - case SHMDT: - return sys_shmdt ((char *)ptr); - case SHMGET: - return sys_shmget (first, second, third); - case SHMCTL: - return sys_shmctl (first, second, - (struct shmid_ds *) ptr); - default: - return -EINVAL; - } -} - -/* Fork a new task - this creates a new program thread. - * This is called indirectly via a small wrapper - */ -asmlinkage int sys_fork(struct pt_regs *regs) -{ - return do_fork(SIGCHLD, regs->ARM_sp, regs, 0, NULL, NULL); -} - -/* Clone a task - this clones the calling program thread. - * This is called indirectly via a small wrapper - */ -asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp, struct pt_regs *regs) -{ - /* - * We don't support SETTID / CLEARTID (FIXME!!! (nicked from arm32)) - */ - if (clone_flags & (CLONE_PARENT_SETTID | CLONE_CHILD_CLEARTID)) - return -EINVAL; - - if (!newsp) - newsp = regs->ARM_sp; - - return do_fork(clone_flags, newsp, regs, 0, NULL, NULL); -} - -asmlinkage int sys_vfork(struct pt_regs *regs) -{ - return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->ARM_sp, regs, 0, NULL, NULL); -} - -/* sys_execve() executes a new program. - * This is called indirectly via a small wrapper - */ -asmlinkage int sys_execve(char *filenamei, char **argv, char **envp, struct pt_regs *regs) -{ - int error; - char * filename; - - filename = getname(filenamei); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - goto out; - error = do_execve(filename, argv, envp, regs); - putname(filename); -out: - return error; -} - -/* FIXME - see if this is correct for arm26 */ -int kernel_execve(const char *filename, char *const argv[], char *const envp[]) -{ - struct pt_regs regs; - int ret; - memset(®s, 0, sizeof(struct pt_regs)); - ret = do_execve((char *)filename, (char __user * __user *)argv, (char __user * __user *)envp, ®s); - if (ret < 0) - goto out; - - /* - * Save argc to the register structure for userspace. - */ - regs.ARM_r0 = ret; - - /* - * We were successful. We won't be returning to our caller, but - * instead to user space by manipulating the kernel stack. - */ - asm( "add r0, %0, %1\n\t" - "mov r1, %2\n\t" - "mov r2, %3\n\t" - "bl memmove\n\t" /* copy regs to top of stack */ - "mov r8, #0\n\t" /* not a syscall */ - "mov r9, %0\n\t" /* thread structure */ - "mov sp, r0\n\t" /* reposition stack pointer */ - "b ret_to_user" - : - : "r" (current_thread_info()), - "Ir" (THREAD_SIZE - 8 - sizeof(regs)), - "r" (®s), - "Ir" (sizeof(regs)) - : "r0", "r1", "r2", "r3", "ip", "memory"); - - out: - return ret; -} - -EXPORT_SYMBOL(kernel_execve); diff --git a/trunk/arch/arm26/kernel/time.c b/trunk/arch/arm26/kernel/time.c deleted file mode 100644 index 0f1d57fbd3d7..000000000000 --- a/trunk/arch/arm26/kernel/time.c +++ /dev/null @@ -1,210 +0,0 @@ -/* - * linux/arch/arm26/kernel/time.c - * - * Copyright (C) 1991, 1992, 1995 Linus Torvalds - * Modifications for ARM (C) 1994-2001 Russell King - * Mods for ARM26 (C) 2003 Ian Molton - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This file contains the ARM-specific time handling details: - * reading the RTC at bootup, etc... - * - * 1994-07-02 Alan Modra - * fixed set_rtc_mmss, fixed time.year for >= 2000, new mktime - * 1998-12-20 Updated NTP code according to technical memorandum Jan '96 - * "A Kernel Model for Precision Timekeeping" by Dave Mills - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -/* this needs a better home */ -DEFINE_SPINLOCK(rtc_lock); - -/* change this if you have some constant time drift */ -#define USECS_PER_JIFFY (1000000/HZ) - -static int dummy_set_rtc(void) -{ - return 0; -} - -/* - * hook for setting the RTC's idea of the current time. - */ -int (*set_rtc)(void) = dummy_set_rtc; - -/* - * Get time offset based on IOCs timer. - * FIXME - if this is called with interrutps off, why the shennanigans - * below ? - */ -static unsigned long gettimeoffset(void) -{ - unsigned int count1, count2, status; - long offset; - - ioc_writeb (0, IOC_T0LATCH); - barrier (); - count1 = ioc_readb(IOC_T0CNTL) | (ioc_readb(IOC_T0CNTH) << 8); - barrier (); - status = ioc_readb(IOC_IRQREQA); - barrier (); - ioc_writeb (0, IOC_T0LATCH); - barrier (); - count2 = ioc_readb(IOC_T0CNTL) | (ioc_readb(IOC_T0CNTH) << 8); - - offset = count2; - if (count2 < count1) { - /* - * We have not had an interrupt between reading count1 - * and count2. - */ - if (status & (1 << 5)) - offset -= LATCH; - } else if (count2 > count1) { - /* - * We have just had another interrupt between reading - * count1 and count2. - */ - offset -= LATCH; - } - - offset = (LATCH - offset) * (tick_nsec / 1000); - return (offset + LATCH/2) / LATCH; -} - -static unsigned long next_rtc_update; - -/* - * If we have an externally synchronized linux clock, then update - * CMOS clock accordingly every ~11 minutes. set_rtc() has to be - * called as close as possible to 500 ms before the new second - * starts. - */ -static inline void do_set_rtc(void) -{ - if (!ntp_synced() || set_rtc == NULL) - return; - -//FIXME - timespec.tv_sec is a time_t not unsigned long - if (next_rtc_update && - time_before((unsigned long)xtime.tv_sec, next_rtc_update)) - return; - - if (xtime.tv_nsec < 500000000 - ((unsigned) tick_nsec >> 1) && - xtime.tv_nsec >= 500000000 + ((unsigned) tick_nsec >> 1)) - return; - - if (set_rtc()) - /* - * rtc update failed. Try again in 60s - */ - next_rtc_update = xtime.tv_sec + 60; - else - next_rtc_update = xtime.tv_sec + 660; -} - -#define do_leds() - -void do_gettimeofday(struct timeval *tv) -{ - unsigned long flags; - unsigned long seq; - unsigned long usec, sec; - - do { - seq = read_seqbegin_irqsave(&xtime_lock, flags); - usec = gettimeoffset(); - sec = xtime.tv_sec; - usec += xtime.tv_nsec / 1000; - } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); - - /* usec may have gone up a lot: be safe */ - while (usec >= 1000000) { - usec -= 1000000; - sec++; - } - - tv->tv_sec = sec; - tv->tv_usec = usec; -} - -EXPORT_SYMBOL(do_gettimeofday); - -int do_settimeofday(struct timespec *tv) -{ - if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) - return -EINVAL; - - write_seqlock_irq(&xtime_lock); - /* - * This is revolting. We need to set "xtime" correctly. However, the - * value in this location is the value at the most recent update of - * wall time. Discover what correction gettimeofday() would have - * done, and then undo it! - */ - tv->tv_nsec -= 1000 * gettimeoffset(); - - while (tv->tv_nsec < 0) { - tv->tv_nsec += NSEC_PER_SEC; - tv->tv_sec--; - } - - xtime.tv_sec = tv->tv_sec; - xtime.tv_nsec = tv->tv_nsec; - ntp_clear(); - write_sequnlock_irq(&xtime_lock); - clock_was_set(); - return 0; -} - -EXPORT_SYMBOL(do_settimeofday); - -static irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) -{ - do_timer(1); -#ifndef CONFIG_SMP - update_process_times(user_mode(regs)); -#endif - do_set_rtc(); //FIME - EVERY timer IRQ? - profile_tick(CPU_PROFILING, regs); - return IRQ_HANDLED; //FIXME - is this right? -} - -static struct irqaction timer_irq = { - .name = "timer", - .flags = IRQF_DISABLED, - .handler = timer_interrupt, -}; - -extern void ioctime_init(void); - -/* - * Set up timer interrupt. - */ -void __init time_init(void) -{ - ioc_writeb(LATCH & 255, IOC_T0LTCHL); - ioc_writeb(LATCH >> 8, IOC_T0LTCHH); - ioc_writeb(0, IOC_T0GO); - - - setup_irq(IRQ_TIMER, &timer_irq); -} - diff --git a/trunk/arch/arm26/kernel/traps.c b/trunk/arch/arm26/kernel/traps.c deleted file mode 100644 index 2911e2eae80e..000000000000 --- a/trunk/arch/arm26/kernel/traps.c +++ /dev/null @@ -1,548 +0,0 @@ -/* - * linux/arch/arm26/kernel/traps.c - * - * Copyright (C) 1995-2002 Russell King - * Fragments that appear the same as linux/arch/i386/kernel/traps.c (C) Linus Torvalds - * Copyright (C) 2003 Ian Molton (ARM26) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * 'traps.c' handles hardware exceptions after we have saved some state in - * 'linux/arch/arm26/lib/traps.S'. Mostly a debugging aid, but will probably - * kill the offending process. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include - -#include "ptrace.h" - -extern void c_backtrace (unsigned long fp, int pmode); -extern void show_pte(struct mm_struct *mm, unsigned long addr); - -const char *processor_modes[] = { "USER_26", "FIQ_26" , "IRQ_26" , "SVC_26" }; - -static const char *handler[]= { "prefetch abort", "data abort", "address exception", "interrupt" "*bad reason*"}; - -/* - * Stack pointers should always be within the kernels view of - * physical memory. If it is not there, then we can't dump - * out any information relating to the stack. - */ -static int verify_stack(unsigned long sp) -{ - if (sp < PAGE_OFFSET || (sp > (unsigned long)high_memory && high_memory != 0)) - return -EFAULT; - - return 0; -} - -/* - * Dump out the contents of some memory nicely... - */ -static void dump_mem(const char *str, unsigned long bottom, unsigned long top) -{ - unsigned long p = bottom & ~31; - mm_segment_t fs; - int i; - - /* - * We need to switch to kernel mode so that we can use __get_user - * to safely read from kernel space. Note that we now dump the - * code first, just in case the backtrace kills us. - */ - fs = get_fs(); - set_fs(KERNEL_DS); - - printk("%s", str); - printk("(0x%08lx to 0x%08lx)\n", bottom, top); - - for (p = bottom & ~31; p < top;) { - printk("%04lx: ", p & 0xffff); - - for (i = 0; i < 8; i++, p += 4) { - unsigned int val; - - if (p < bottom || p >= top) - printk(" "); - else { - __get_user(val, (unsigned long *)p); - printk("%08x ", val); - } - } - printk ("\n"); - } - - set_fs(fs); -} - -static void dump_instr(struct pt_regs *regs) -{ - unsigned long addr = instruction_pointer(regs); - const int width = 8; - mm_segment_t fs; - int i; - - /* - * We need to switch to kernel mode so that we can use __get_user - * to safely read from kernel space. Note that we now dump the - * code first, just in case the backtrace kills us. - */ - fs = get_fs(); - set_fs(KERNEL_DS); - - printk("Code: "); - for (i = -4; i < 1; i++) { - unsigned int val, bad; - - bad = __get_user(val, &((u32 *)addr)[i]); - - if (!bad) - printk(i == 0 ? "(%0*x) " : "%0*x ", width, val); - else { - printk("bad PC value."); - break; - } - } - printk("\n"); - - set_fs(fs); -} - -/*static*/ void __dump_stack(struct task_struct *tsk, unsigned long sp) -{ - dump_mem("Stack: ", sp, 8192+(unsigned long)task_stack_page(tsk)); -} - -void dump_stack(void) -{ -#ifdef CONFIG_DEBUG_ERRORS - __backtrace(); -#endif -} - -EXPORT_SYMBOL(dump_stack); - -//FIXME - was a static fn -void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) -{ - unsigned int fp; - int ok = 1; - - printk("Backtrace: "); - fp = regs->ARM_fp; - if (!fp) { - printk("no frame pointer"); - ok = 0; - } else if (verify_stack(fp)) { - printk("invalid frame pointer 0x%08x", fp); - ok = 0; - } else if (fp < (unsigned long)end_of_stack(tsk)) - printk("frame pointer underflow"); - printk("\n"); - - if (ok) - c_backtrace(fp, processor_mode(regs)); -} - -/* FIXME - this is probably wrong.. */ -void show_stack(struct task_struct *task, unsigned long *sp) { - dump_mem("Stack: ", (unsigned long)sp, 8192+(unsigned long)task_stack_page(task)); -} - -DEFINE_SPINLOCK(die_lock); - -/* - * This function is protected against re-entrancy. - */ -NORET_TYPE void die(const char *str, struct pt_regs *regs, int err) -{ - struct task_struct *tsk = current; - - console_verbose(); - spin_lock_irq(&die_lock); - - printk("Internal error: %s: %x\n", str, err); - printk("CPU: %d\n", smp_processor_id()); - show_regs(regs); - add_taint(TAINT_DIE); - printk("Process %s (pid: %d, stack limit = 0x%p)\n", - current->comm, current->pid, end_of_stack(tsk)); - - if (!user_mode(regs) || in_interrupt()) { - __dump_stack(tsk, (unsigned long)(regs + 1)); - dump_backtrace(regs, tsk); - dump_instr(regs); - } -while(1); - spin_unlock_irq(&die_lock); - do_exit(SIGSEGV); -} - -void die_if_kernel(const char *str, struct pt_regs *regs, int err) -{ - if (user_mode(regs)) - return; - - die(str, regs, err); -} - -static DEFINE_MUTEX(undef_mutex); -static int (*undef_hook)(struct pt_regs *); - -int request_undef_hook(int (*fn)(struct pt_regs *)) -{ - int ret = -EBUSY; - - mutex_lock(&undef_mutex); - if (undef_hook == NULL) { - undef_hook = fn; - ret = 0; - } - mutex_unlock(&undef_mutex); - - return ret; -} - -int release_undef_hook(int (*fn)(struct pt_regs *)) -{ - int ret = -EINVAL; - - mutex_lock(&undef_mutex); - if (undef_hook == fn) { - undef_hook = NULL; - ret = 0; - } - mutex_unlock(&undef_mutex); - - return ret; -} - -static int undefined_extension(struct pt_regs *regs, unsigned int op) -{ - switch (op) { - case 1: /* 0xde01 / 0x?7f001f0 */ - ptrace_break(current, regs); - return 0; - } - return 1; -} - -asmlinkage void do_undefinstr(struct pt_regs *regs) -{ - siginfo_t info; - void *pc; - - regs->ARM_pc -= 4; - - pc = (unsigned long *)instruction_pointer(regs); /* strip PSR */ - - if (user_mode(regs)) { - u32 instr; - - get_user(instr, (u32 *)pc); - - if ((instr & 0x0fff00ff) == 0x07f000f0 && - undefined_extension(regs, (instr >> 8) & 255) == 0) { - regs->ARM_pc += 4; - return; - } - } else { - if (undef_hook && undef_hook(regs) == 0) { - regs->ARM_pc += 4; - return; - } - } - -#ifdef CONFIG_DEBUG_USER - printk(KERN_INFO "%s (%d): undefined instruction: pc=%p\n", - current->comm, current->pid, pc); - dump_instr(regs); -#endif - - current->thread.error_code = 0; - current->thread.trap_no = 6; - - info.si_signo = SIGILL; - info.si_errno = 0; - info.si_code = ILL_ILLOPC; - info.si_addr = pc; - - force_sig_info(SIGILL, &info, current); - - die_if_kernel("Oops - undefined instruction", regs, 0); -} - -asmlinkage void do_excpt(unsigned long address, struct pt_regs *regs, int mode) -{ - siginfo_t info; - -#ifdef CONFIG_DEBUG_USER - printk(KERN_INFO "%s (%d): address exception: pc=%08lx\n", - current->comm, current->pid, instruction_pointer(regs)); - dump_instr(regs); -#endif - - current->thread.error_code = 0; - current->thread.trap_no = 11; - - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_ADRERR; - info.si_addr = (void *)address; - - force_sig_info(SIGBUS, &info, current); - - die_if_kernel("Oops - address exception", regs, mode); -} - -asmlinkage void do_unexp_fiq (struct pt_regs *regs) -{ -#ifndef CONFIG_IGNORE_FIQ - printk("Hmm. Unexpected FIQ received, but trying to continue\n"); - printk("You may have a hardware problem...\n"); -#endif -} - -/* - * bad_mode handles the impossible case in the vectors. If you see one of - * these, then it's extremely serious, and could mean you have buggy hardware. - * It never returns, and never tries to sync. We hope that we can at least - * dump out some state information... - */ -asmlinkage void bad_mode(struct pt_regs *regs, int reason, int proc_mode) -{ - unsigned int vectors = vectors_base(); - - console_verbose(); - - printk(KERN_CRIT "Bad mode in %s handler detected: mode %s\n", - handler[reason<5?reason:4], processor_modes[proc_mode]); - - /* - * Dump out the vectors and stub routines. Maybe a better solution - * would be to dump them out only if we detect that they are corrupted. - */ - dump_mem(KERN_CRIT "Vectors: ", vectors, vectors + 0x40); - dump_mem(KERN_CRIT "Stubs: ", vectors + 0x200, vectors + 0x4b8); - - die("Oops", regs, 0); - local_irq_disable(); - panic("bad mode"); -} - -static int bad_syscall(int n, struct pt_regs *regs) -{ - struct thread_info *thread = current_thread_info(); - siginfo_t info; - - if (current->personality != PER_LINUX && thread->exec_domain->handler) { - thread->exec_domain->handler(n, regs); - return regs->ARM_r0; - } - -#ifdef CONFIG_DEBUG_USER - printk(KERN_ERR "[%d] %s: obsolete system call %08x.\n", - current->pid, current->comm, n); - dump_instr(regs); -#endif - - info.si_signo = SIGILL; - info.si_errno = 0; - info.si_code = ILL_ILLTRP; - info.si_addr = (void *)instruction_pointer(regs) - 4; - - force_sig_info(SIGILL, &info, current); - die_if_kernel("Oops", regs, n); - return regs->ARM_r0; -} - -static inline void -do_cache_op(unsigned long start, unsigned long end, int flags) -{ - struct vm_area_struct *vma; - - if (end < start) - return; - - vma = find_vma(current->active_mm, start); - if (vma && vma->vm_start < end) { - if (start < vma->vm_start) - start = vma->vm_start; - if (end > vma->vm_end) - end = vma->vm_end; - } -} - -/* - * Handle all unrecognised system calls. - * 0x9f0000 - 0x9fffff are some more esoteric system calls - */ -#define NR(x) ((__ARM_NR_##x) - __ARM_NR_BASE) -asmlinkage int arm_syscall(int no, struct pt_regs *regs) -{ - siginfo_t info; - - if ((no >> 16) != 0x9f) - return bad_syscall(no, regs); - - switch (no & 0xffff) { - case 0: /* branch through 0 */ - info.si_signo = SIGSEGV; - info.si_errno = 0; - info.si_code = SEGV_MAPERR; - info.si_addr = NULL; - - force_sig_info(SIGSEGV, &info, current); - - die_if_kernel("branch through zero", regs, 0); - return 0; - - case NR(breakpoint): /* SWI BREAK_POINT */ - ptrace_break(current, regs); - return regs->ARM_r0; - - case NR(cacheflush): - return 0; - - case NR(usr26): - break; - - default: - /* Calls 9f00xx..9f07ff are defined to return -ENOSYS - if not implemented, rather than raising SIGILL. This - way the calling program can gracefully determine whether - a feature is supported. */ - if (no <= 0x7ff) - return -ENOSYS; - break; - } -#ifdef CONFIG_DEBUG_USER - /* - * experience shows that these seem to indicate that - * something catastrophic has happened - */ - printk("[%d] %s: arm syscall %d\n", current->pid, current->comm, no); - dump_instr(regs); - if (user_mode(regs)) { - show_regs(regs); - c_backtrace(regs->ARM_fp, processor_mode(regs)); - } -#endif - info.si_signo = SIGILL; - info.si_errno = 0; - info.si_code = ILL_ILLTRP; - info.si_addr = (void *)instruction_pointer(regs) - 4; - - force_sig_info(SIGILL, &info, current); - die_if_kernel("Oops", regs, no); - return 0; -} - -void __bad_xchg(volatile void *ptr, int size) -{ - printk("xchg: bad data size: pc 0x%p, ptr 0x%p, size %d\n", - __builtin_return_address(0), ptr, size); - BUG(); -} - -/* - * A data abort trap was taken, but we did not handle the instruction. - * Try to abort the user program, or panic if it was the kernel. - */ -asmlinkage void -baddataabort(int code, unsigned long instr, struct pt_regs *regs) -{ - unsigned long addr = instruction_pointer(regs); - siginfo_t info; - -#ifdef CONFIG_DEBUG_USER - printk(KERN_ERR "[%d] %s: bad data abort: code %d instr 0x%08lx\n", - current->pid, current->comm, code, instr); - dump_instr(regs); - show_pte(current->mm, addr); -#endif - - info.si_signo = SIGILL; - info.si_errno = 0; - info.si_code = ILL_ILLOPC; - info.si_addr = (void *)addr; - - force_sig_info(SIGILL, &info, current); - die_if_kernel("unknown data abort code", regs, instr); -} - -volatile void __bug(const char *file, int line, void *data) -{ - printk(KERN_CRIT"kernel BUG at %s:%d!", file, line); - if (data) - printk(KERN_CRIT" - extra data = %p", data); - printk("\n"); - *(int *)0 = 0; -} - -void __readwrite_bug(const char *fn) -{ - printk("%s called, but not implemented", fn); - BUG(); -} - -void __pte_error(const char *file, int line, unsigned long val) -{ - printk("%s:%d: bad pte %08lx.\n", file, line, val); -} - -void __pmd_error(const char *file, int line, unsigned long val) -{ - printk("%s:%d: bad pmd %08lx.\n", file, line, val); -} - -void __pgd_error(const char *file, int line, unsigned long val) -{ - printk("%s:%d: bad pgd %08lx.\n", file, line, val); -} - -asmlinkage void __div0(void) -{ - printk("Division by zero in kernel.\n"); - dump_stack(); -} - -void abort(void) -{ - BUG(); - - /* if that doesn't kill us, halt */ - panic("Oops failed to kill thread"); -} - -void __init trap_init(void) -{ - extern void __trap_init(unsigned long); - unsigned long base = vectors_base(); - - __trap_init(base); - if (base != 0) - printk(KERN_DEBUG "Relocating machine vectors to 0x%08lx\n", - base); -} diff --git a/trunk/arch/arm26/kernel/vmlinux-arm26-xip.lds.in b/trunk/arch/arm26/kernel/vmlinux-arm26-xip.lds.in deleted file mode 100644 index 4ec715c25dea..000000000000 --- a/trunk/arch/arm26/kernel/vmlinux-arm26-xip.lds.in +++ /dev/null @@ -1,136 +0,0 @@ -/* ld script to make ARM Linux kernel - * taken from the i386 version by Russell King - * Written by Martin Mares - * borrowed from Russels ARM port by Ian Molton - */ - -#include - -OUTPUT_ARCH(arm) -ENTRY(stext) -jiffies = jiffies_64; -SECTIONS -{ - . = TEXTADDR; - .init : { /* Init code and data */ - _stext = .; - __init_begin = .; - _sinittext = .; - *(.init.text) - _einittext = .; - __proc_info_begin = .; - *(.proc.info) - __proc_info_end = .; - __arch_info_begin = .; - *(.arch.info) - __arch_info_end = .; - __tagtable_begin = .; - *(.taglist) - __tagtable_end = .; - . = ALIGN(16); - __setup_start = .; - *(.init.setup) - __setup_end = .; - __early_begin = .; - *(__early_param) - __early_end = .; - __initcall_start = .; - *(.initcall1.init) - *(.initcall2.init) - *(.initcall3.init) - *(.initcall4.init) - *(.initcall5.init) - *(.initcall6.init) - *(.initcall7.init) - __initcall_end = .; - __con_initcall_start = .; - *(.con_initcall.init) - __con_initcall_end = .; -#ifdef CONFIG_BLK_DEV_INITRD - . = ALIGN(32); - __initramfs_start = .; - usr/built-in.o(.init.ramfs) - __initramfs_end = .; -#endif - . = ALIGN(32768); - __init_end = .; - } - - /DISCARD/ : { /* Exit code and data */ - *(.exit.text) - *(.exit.data) - *(.exitcall.exit) - } - - .text : { /* Real text segment */ - _text = .; /* Text and read-only data */ - TEXT_TEXT - SCHED_TEXT - LOCK_TEXT /* FIXME - borrowed from arm32 - check*/ - *(.fixup) - *(.gnu.warning) - *(.rodata) - *(.rodata.*) - *(.glue_7) - *(.glue_7t) - *(.got) /* Global offset table */ - - _etext = .; /* End of text section */ - } - - . = ALIGN(16); - __ex_table : { /* Exception table */ - __start___ex_table = .; - *(__ex_table) - __stop___ex_table = .; - } - - RODATA - - _endtext = .; - - . = DATAADDR; - - _sdata = .; - - .data : { - . = ALIGN(8192); - /* - * first, the init thread union, aligned - * to an 8192 byte boundary. (see arm26/kernel/init_task.c) - * FIXME - sould this be 32K aligned on arm26? - */ - *(.init.task) - - /* - * The cacheline aligned data - */ - . = ALIGN(32); - *(.data.cacheline_aligned) - - /* - * and the usual data section - */ - DATA_DATA - CONSTRUCTORS - - *(.init.data) - - _edata = .; - } - - .bss : { - __bss_start = .; /* BSS */ - *(.bss) - *(COMMON) - _end = . ; - } - /* Stabs debugging sections. */ - .stab 0 : { *(.stab) } - .stabstr 0 : { *(.stabstr) } - .stab.excl 0 : { *(.stab.excl) } - .stab.exclstr 0 : { *(.stab.exclstr) } - .stab.index 0 : { *(.stab.index) } - .stab.indexstr 0 : { *(.stab.indexstr) } - .comment 0 : { *(.comment) } -} diff --git a/trunk/arch/arm26/kernel/vmlinux-arm26.lds.in b/trunk/arch/arm26/kernel/vmlinux-arm26.lds.in deleted file mode 100644 index 6c44f6a17bf7..000000000000 --- a/trunk/arch/arm26/kernel/vmlinux-arm26.lds.in +++ /dev/null @@ -1,129 +0,0 @@ -/* ld script to make ARM Linux kernel - * taken from the i386 version by Russell King - * Written by Martin Mares - * borrowed from Russels ARM port by Ian Molton and subsequently modified. - */ - -#include - -OUTPUT_ARCH(arm) -ENTRY(stext) -jiffies = jiffies_64; -SECTIONS -{ - . = TEXTADDR; - .init : { /* Init code and data */ - _stext = .; - __init_begin = .; - _sinittext = .; - *(.init.text) - _einittext = .; - __proc_info_begin = .; - *(.proc.info) - __proc_info_end = .; - __arch_info_begin = .; - *(.arch.info) - __arch_info_end = .; - __tagtable_begin = .; - *(.taglist) - __tagtable_end = .; - *(.init.data) - . = ALIGN(16); - __setup_start = .; - *(.init.setup) - __setup_end = .; - __early_begin = .; - *(__early_param) - __early_end = .; - __initcall_start = .; - *(.initcall1.init) - *(.initcall2.init) - *(.initcall3.init) - *(.initcall4.init) - *(.initcall5.init) - *(.initcall6.init) - *(.initcall7.init) - __initcall_end = .; - __con_initcall_start = .; - *(.con_initcall.init) - __con_initcall_end = .; -#ifdef CONFIG_BLK_DEV_INITRD - . = ALIGN(32); - __initramfs_start = .; - usr/built-in.o(.init.ramfs) - __initramfs_end = .; -#endif - . = ALIGN(32768); - __init_end = .; - } - - /DISCARD/ : { /* Exit code and data */ - *(.exit.text) - *(.exit.data) - *(.exitcall.exit) - } - - .text : { /* Real text segment */ - _text = .; /* Text and read-only data */ - TEXT_TEXT - SCHED_TEXT - LOCK_TEXT - *(.fixup) - *(.gnu.warning) - *(.rodata) - *(.rodata.*) - *(.glue_7) - *(.glue_7t) - *(.got) /* Global offset table */ - - _etext = .; /* End of text section */ - } - - . = ALIGN(16); - __ex_table : { /* Exception table */ - __start___ex_table = .; - *(__ex_table) - __stop___ex_table = .; - } - - RODATA - - . = ALIGN(8192); - - .data : { - /* - * first, the init task union, aligned - * to an 8192 byte boundary. (see arm26/kernel/init_task.c) - */ - *(.init.task) - - /* - * The cacheline aligned data - */ - . = ALIGN(32); - *(.data.cacheline_aligned) - - /* - * and the usual data section - */ - DATA_DATA - CONSTRUCTORS - - _edata = .; - } - - .bss : { - __bss_start = .; /* BSS */ - *(.bss) - *(COMMON) - _end = . ; - } - /* Stabs debugging sections. */ - .stab 0 : { *(.stab) } - .stabstr 0 : { *(.stabstr) } - .stab.excl 0 : { *(.stab.excl) } - .stab.exclstr 0 : { *(.stab.exclstr) } - .stab.index 0 : { *(.stab.index) } - .stab.indexstr 0 : { *(.stab.indexstr) } - .comment 0 : { *(.comment) } -} diff --git a/trunk/arch/arm26/kernel/vmlinux.lds.S b/trunk/arch/arm26/kernel/vmlinux.lds.S deleted file mode 100644 index 1fa39f02e07c..000000000000 --- a/trunk/arch/arm26/kernel/vmlinux.lds.S +++ /dev/null @@ -1,11 +0,0 @@ - -#ifdef CONFIG_XIP_KERNEL - -#include "vmlinux-arm26-xip.lds.in" - -#else - -#include "vmlinux-arm26.lds.in" - -#endif - diff --git a/trunk/arch/arm26/lib/Makefile b/trunk/arch/arm26/lib/Makefile deleted file mode 100644 index 6df2b793d367..000000000000 --- a/trunk/arch/arm26/lib/Makefile +++ /dev/null @@ -1,26 +0,0 @@ -# -# linux/arch/arm26/lib/Makefile -# -# Copyright (C) 1995-2000 Russell King -# - -lib-y := backtrace.o changebit.o csumipv6.o csumpartial.o \ - csumpartialcopy.o csumpartialcopyuser.o clearbit.o \ - copy_page.o delay.o findbit.o memchr.o memcpy.o \ - memset.o memzero.o setbit.o \ - strchr.o strrchr.o testchangebit.o \ - testclearbit.o testsetbit.o getuser.o \ - putuser.o ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \ - ucmpdi2.o udivdi3.o lib1funcs.o ecard.o io-acorn.o \ - floppydma.o io-readsb.o io-writesb.o io-writesl.o \ - uaccess-kernel.o uaccess-user.o io-readsw.o \ - io-writesw.o io-readsl.o ecard.o io-acorn.o \ - floppydma.o - -lib-n := - -lib-$(CONFIG_VT)+= kbd.o - -csumpartialcopy.o: csumpartialcopygeneric.S -csumpartialcopyuser.o: csumpartialcopygeneric.S - diff --git a/trunk/arch/arm26/lib/ashldi3.c b/trunk/arch/arm26/lib/ashldi3.c deleted file mode 100644 index 130f5a839669..000000000000 --- a/trunk/arch/arm26/lib/ashldi3.c +++ /dev/null @@ -1,61 +0,0 @@ -/* More subroutines needed by GCC output code on some machines. */ -/* Compile this one with gcc. */ -/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* As a special exception, if you link this library with other files, - some of which are compiled with GCC, to produce an executable, - this library does not by itself cause the resulting executable - to be covered by the GNU General Public License. - This exception does not however invalidate any other reasons why - the executable file might be covered by the GNU General Public License. - */ -/* support functions required by the kernel. based on code from gcc-2.95.3 */ -/* I Molton 29/07/01 */ - -#include "gcclib.h" - -DItype -__ashldi3 (DItype u, word_type b) -{ - DIunion w; - word_type bm; - DIunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof (SItype) * BITS_PER_UNIT) - b; - if (bm <= 0) - { - w.s.low = 0; - w.s.high = (USItype)uu.s.low << -bm; - } - else - { - USItype carries = (USItype)uu.s.low >> bm; - w.s.low = (USItype)uu.s.low << b; - w.s.high = ((USItype)uu.s.high << b) | carries; - } - - return w.ll; -} - diff --git a/trunk/arch/arm26/lib/ashrdi3.c b/trunk/arch/arm26/lib/ashrdi3.c deleted file mode 100644 index 71625d218f8d..000000000000 --- a/trunk/arch/arm26/lib/ashrdi3.c +++ /dev/null @@ -1,61 +0,0 @@ -/* More subroutines needed by GCC output code on some machines. */ -/* Compile this one with gcc. */ -/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* As a special exception, if you link this library with other files, - some of which are compiled with GCC, to produce an executable, - this library does not by itself cause the resulting executable - to be covered by the GNU General Public License. - This exception does not however invalidate any other reasons why - the executable file might be covered by the GNU General Public License. - */ -/* support functions required by the kernel. based on code from gcc-2.95.3 */ -/* I Molton 29/07/01 */ - -#include "gcclib.h" - -DItype -__ashrdi3 (DItype u, word_type b) -{ - DIunion w; - word_type bm; - DIunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof (SItype) * BITS_PER_UNIT) - b; - if (bm <= 0) - { - /* w.s.high = 1..1 or 0..0 */ - w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1); - w.s.low = uu.s.high >> -bm; - } - else - { - USItype carries = (USItype)uu.s.high << bm; - w.s.high = uu.s.high >> b; - w.s.low = ((USItype)uu.s.low >> b) | carries; - } - - return w.ll; -} diff --git a/trunk/arch/arm26/lib/backtrace.S b/trunk/arch/arm26/lib/backtrace.S deleted file mode 100644 index e27feb1e891d..000000000000 --- a/trunk/arch/arm26/lib/backtrace.S +++ /dev/null @@ -1,144 +0,0 @@ -/* - * linux/arch/arm26/lib/backtrace.S - * - * Copyright (C) 1995, 1996 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include - .text - -@ fp is 0 or stack frame - -#define frame r4 -#define next r5 -#define save r6 -#define mask r7 -#define offset r8 - -ENTRY(__backtrace) - mov r1, #0x10 - mov r0, fp - -ENTRY(c_backtrace) - -#ifdef CONFIG_NO_FRAME_POINTER - mov pc, lr -#else - - stmfd sp!, {r4 - r8, lr} @ Save an extra register so we have a location... - mov mask, #0xfc000003 - tst mask, r0 - movne r0, #0 - movs frame, r0 -1: moveq r0, #-2 - LOADREGS(eqfd, sp!, {r4 - r8, pc}) - -2: stmfd sp!, {pc} @ calculate offset of PC in STMIA instruction - ldr r0, [sp], #4 - adr r1, 2b - 4 - sub offset, r0, r1 - -3: tst frame, mask @ Check for address exceptions... - bne 1b - -1001: ldr next, [frame, #-12] @ get fp -1002: ldr r2, [frame, #-4] @ get lr -1003: ldr r3, [frame, #0] @ get pc - sub save, r3, offset @ Correct PC for prefetching - bic save, save, mask -1004: ldr r1, [save, #0] @ get instruction at function - mov r1, r1, lsr #10 - ldr r3, .Ldsi+4 - teq r1, r3 - subeq save, save, #4 - adr r0, .Lfe - mov r1, save - bic r2, r2, mask - bl printk @ print pc and link register - - ldr r0, [frame, #-8] @ get sp - sub r0, r0, #4 -1005: ldr r1, [save, #4] @ get instruction at function+4 - mov r3, r1, lsr #10 - ldr r2, .Ldsi+4 - teq r3, r2 @ Check for stmia sp!, {args} - addeq save, save, #4 @ next instruction - bleq .Ldumpstm - - sub r0, frame, #16 -1006: ldr r1, [save, #4] @ Get 'stmia sp!, {rlist, fp, ip, lr, pc}' instruction - mov r3, r1, lsr #10 - ldr r2, .Ldsi - teq r3, r2 - bleq .Ldumpstm - - teq frame, next - movne frame, next - teqne frame, #0 - bne 3b - LOADREGS(fd, sp!, {r4 - r8, pc}) - -/* - * Fixup for LDMDB - */ - .section .fixup,"ax" - .align 0 -1007: ldr r0, =.Lbad - mov r1, frame - bl printk - LOADREGS(fd, sp!, {r4 - r8, pc}) - .ltorg - .previous - - .section __ex_table,"a" - .align 3 - .long 1001b, 1007b - .long 1002b, 1007b - .long 1003b, 1007b - .long 1004b, 1007b - .long 1005b, 1007b - .long 1006b, 1007b - .previous - -#define instr r4 -#define reg r5 -#define stack r6 - -.Ldumpstm: stmfd sp!, {instr, reg, stack, r7, lr} - mov stack, r0 - mov instr, r1 - mov reg, #9 - mov r7, #0 -1: mov r3, #1 - tst instr, r3, lsl reg - beq 2f - add r7, r7, #1 - teq r7, #4 - moveq r7, #0 - moveq r3, #'\n' - movne r3, #' ' - ldr r2, [stack], #-4 - mov r1, reg - adr r0, .Lfp - bl printk -2: subs reg, reg, #1 - bpl 1b - teq r7, #0 - adrne r0, .Lcr - blne printk - mov r0, stack - LOADREGS(fd, sp!, {instr, reg, stack, r7, pc}) - -.Lfe: .asciz "Function entered at [<%p>] from [<%p>]\n" -.Lfp: .asciz " r%d = %08X%c" -.Lcr: .asciz "\n" -.Lbad: .asciz "Backtrace aborted due to bad frame pointer <%p>\n" - .align -.Ldsi: .word 0x00e92dd8 >> 2 - .word 0x00e92d00 >> 2 - -#endif diff --git a/trunk/arch/arm26/lib/changebit.S b/trunk/arch/arm26/lib/changebit.S deleted file mode 100644 index 1b6a077be5a6..000000000000 --- a/trunk/arch/arm26/lib/changebit.S +++ /dev/null @@ -1,28 +0,0 @@ -/* - * linux/arch/arm26/lib/changebit.S - * - * Copyright (C) 1995-1996 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include - .text - -/* Purpose : Function to change a bit - * Prototype: int change_bit(int bit, void *addr) - */ -ENTRY(_change_bit_be) - eor r0, r0, #0x18 @ big endian byte ordering -ENTRY(_change_bit_le) - and r2, r0, #7 - mov r3, #1 - mov r3, r3, lsl r2 - save_and_disable_irqs ip, r2 - ldrb r2, [r1, r0, lsr #3] - eor r2, r2, r3 - strb r2, [r1, r0, lsr #3] - restore_irqs ip - RETINSTR(mov,pc,lr) diff --git a/trunk/arch/arm26/lib/clearbit.S b/trunk/arch/arm26/lib/clearbit.S deleted file mode 100644 index 0a895b0c759f..000000000000 --- a/trunk/arch/arm26/lib/clearbit.S +++ /dev/null @@ -1,31 +0,0 @@ -/* - * linux/arch/arm26/lib/clearbit.S - * - * Copyright (C) 1995-1996 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include - .text - -/* - * Purpose : Function to clear a bit - * Prototype: int clear_bit(int bit, void *addr) - */ -ENTRY(_clear_bit_be) - eor r0, r0, #0x18 @ big endian byte ordering -ENTRY(_clear_bit_le) - and r2, r0, #7 - mov r3, #1 - mov r3, r3, lsl r2 - save_and_disable_irqs ip, r2 - ldrb r2, [r1, r0, lsr #3] - bic r2, r2, r3 - strb r2, [r1, r0, lsr #3] - restore_irqs ip - RETINSTR(mov,pc,lr) - - diff --git a/trunk/arch/arm26/lib/copy_page.S b/trunk/arch/arm26/lib/copy_page.S deleted file mode 100644 index c7511a2739d3..000000000000 --- a/trunk/arch/arm26/lib/copy_page.S +++ /dev/null @@ -1,62 +0,0 @@ -/* - * linux/arch/arm26/lib/copypage.S - * - * Copyright (C) 1995-1999 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * ASM optimised string functions - */ -#include -#include -#include - - .text - .align 5 -/* - * ARMv3 optimised copy_user_page - * - * FIXME: rmk do we need to handle cache stuff... - * FIXME: im is this right on ARM26? - */ -ENTRY(__copy_user_page) - stmfd sp!, {r4, lr} @ 2 - mov r2, #PAGE_SZ/64 @ 1 - ldmia r1!, {r3, r4, ip, lr} @ 4+1 -1: stmia r0!, {r3, r4, ip, lr} @ 4 - ldmia r1!, {r3, r4, ip, lr} @ 4+1 - stmia r0!, {r3, r4, ip, lr} @ 4 - ldmia r1!, {r3, r4, ip, lr} @ 4+1 - stmia r0!, {r3, r4, ip, lr} @ 4 - ldmia r1!, {r3, r4, ip, lr} @ 4 - subs r2, r2, #1 @ 1 - stmia r0!, {r3, r4, ip, lr} @ 4 - ldmneia r1!, {r3, r4, ip, lr} @ 4 - bne 1b @ 1 - LOADREGS(fd, sp!, {r4, pc}) @ 3 - - .align 5 -/* - * ARMv3 optimised clear_user_page - * - * FIXME: rmk do we need to handle cache stuff... - */ -ENTRY(__clear_user_page) - str lr, [sp, #-4]! - mov r1, #PAGE_SZ/64 @ 1 - mov r2, #0 @ 1 - mov r3, #0 @ 1 - mov ip, #0 @ 1 - mov lr, #0 @ 1 -1: stmia r0!, {r2, r3, ip, lr} @ 4 - stmia r0!, {r2, r3, ip, lr} @ 4 - stmia r0!, {r2, r3, ip, lr} @ 4 - stmia r0!, {r2, r3, ip, lr} @ 4 - subs r1, r1, #1 @ 1 - bne 1b @ 1 - ldr pc, [sp], #4 - - .section ".init.text", #alloc, #execinstr - diff --git a/trunk/arch/arm26/lib/csumipv6.S b/trunk/arch/arm26/lib/csumipv6.S deleted file mode 100644 index 62831155acde..000000000000 --- a/trunk/arch/arm26/lib/csumipv6.S +++ /dev/null @@ -1,32 +0,0 @@ -/* - * linux/arch/arm26/lib/csumipv6.S - * - * Copyright (C) 1995-1998 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include - - .text - -ENTRY(__csum_ipv6_magic) - str lr, [sp, #-4]! - adds ip, r2, r3 - ldmia r1, {r1 - r3, lr} - adcs ip, ip, r1 - adcs ip, ip, r2 - adcs ip, ip, r3 - adcs ip, ip, lr - ldmia r0, {r0 - r3} - adcs r0, ip, r0 - adcs r0, r0, r1 - adcs r0, r0, r2 - ldr r2, [sp, #4] - adcs r0, r0, r3 - adcs r0, r0, r2 - adcs r0, r0, #0 - LOADREGS(fd, sp!, {pc}) - diff --git a/trunk/arch/arm26/lib/csumpartial.S b/trunk/arch/arm26/lib/csumpartial.S deleted file mode 100644 index e53e7109e623..000000000000 --- a/trunk/arch/arm26/lib/csumpartial.S +++ /dev/null @@ -1,130 +0,0 @@ -/* - * linux/arch/arm26/lib/csumpartial.S - * - * Copyright (C) 1995-1998 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include - - .text - -/* - * Function: __u32 csum_partial(const char *src, int len, __u32 sum) - * Params : r0 = buffer, r1 = len, r2 = checksum - * Returns : r0 = new checksum - */ - -buf .req r0 -len .req r1 -sum .req r2 -td0 .req r3 -td1 .req r4 @ save before use -td2 .req r5 @ save before use -td3 .req lr - -.zero: mov r0, sum - add sp, sp, #4 - ldr pc, [sp], #4 - - /* - * Handle 0 to 7 bytes, with any alignment of source and - * destination pointers. Note that when we get here, C = 0 - */ -.less8: teq len, #0 @ check for zero count - beq .zero - - /* we must have at least one byte. */ - tst buf, #1 @ odd address? - ldrneb td0, [buf], #1 - subne len, len, #1 - adcnes sum, sum, td0, lsl #byte(1) - -.less4: tst len, #6 - beq .less8_byte - - /* we are now half-word aligned */ - -.less8_wordlp: -#if __LINUX_ARM_ARCH__ >= 4 - ldrh td0, [buf], #2 - sub len, len, #2 -#else - ldrb td0, [buf], #1 - ldrb td3, [buf], #1 - sub len, len, #2 - orr td0, td0, td3, lsl #8 -#endif - adcs sum, sum, td0 - tst len, #6 - bne .less8_wordlp - -.less8_byte: tst len, #1 @ odd number of bytes - ldrneb td0, [buf], #1 @ include last byte - adcnes sum, sum, td0, lsl #byte(0) @ update checksum - -.done: adc r0, sum, #0 @ collect up the last carry - ldr td0, [sp], #4 - tst td0, #1 @ check buffer alignment - movne td0, r0, lsl #8 @ rotate checksum by 8 bits - orrne r0, td0, r0, lsr #24 - ldr pc, [sp], #4 @ return - -.not_aligned: tst buf, #1 @ odd address - ldrneb td0, [buf], #1 @ make even - subne len, len, #1 - adcnes sum, sum, td0, lsl #byte(1) @ update checksum - - tst buf, #2 @ 32-bit aligned? -#if __LINUX_ARM_ARCH__ >= 4 - ldrneh td0, [buf], #2 @ make 32-bit aligned - subne len, len, #2 -#else - ldrneb td0, [buf], #1 - ldrneb ip, [buf], #1 - subne len, len, #2 - orrne td0, td0, ip, lsl #8 -#endif - adcnes sum, sum, td0 @ update checksum - mov pc, lr - -ENTRY(csum_partial) - stmfd sp!, {buf, lr} - cmp len, #8 @ Ensure that we have at least - blo .less8 @ 8 bytes to copy. - - adds sum, sum, #0 @ C = 0 - tst buf, #3 @ Test destination alignment - blne .not_aligned @ aligh destination, return here - -1: bics ip, len, #31 - beq 3f - - stmfd sp!, {r4 - r5} -2: ldmia buf!, {td0, td1, td2, td3} - adcs sum, sum, td0 - adcs sum, sum, td1 - adcs sum, sum, td2 - adcs sum, sum, td3 - ldmia buf!, {td0, td1, td2, td3} - adcs sum, sum, td0 - adcs sum, sum, td1 - adcs sum, sum, td2 - adcs sum, sum, td3 - sub ip, ip, #32 - teq ip, #0 - bne 2b - ldmfd sp!, {r4 - r5} - -3: tst len, #0x1c @ should not change C - beq .less4 - -4: ldr td0, [buf], #4 - sub len, len, #4 - adcs sum, sum, td0 - tst len, #0x1c - bne 4b - b .less4 diff --git a/trunk/arch/arm26/lib/csumpartialcopy.S b/trunk/arch/arm26/lib/csumpartialcopy.S deleted file mode 100644 index a1c4b5fdd498..000000000000 --- a/trunk/arch/arm26/lib/csumpartialcopy.S +++ /dev/null @@ -1,52 +0,0 @@ -/* - * linux/arch/arm26/lib/csumpartialcopy.S - * - * Copyright (C) 1995-1998 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include - - .text - -/* Function: __u32 csum_partial_copy_nocheck(const char *src, char *dst, int len, __u32 sum) - * Params : r0 = src, r1 = dst, r2 = len, r3 = checksum - * Returns : r0 = new checksum - */ - - .macro save_regs - stmfd sp!, {r1, r4 - r8, fp, ip, lr, pc} - .endm - - .macro load_regs,flags - LOADREGS(\flags,fp,{r1, r4 - r8, fp, sp, pc}) - .endm - - .macro load1b, reg1 - ldrb \reg1, [r0], #1 - .endm - - .macro load2b, reg1, reg2 - ldrb \reg1, [r0], #1 - ldrb \reg2, [r0], #1 - .endm - - .macro load1l, reg1 - ldr \reg1, [r0], #4 - .endm - - .macro load2l, reg1, reg2 - ldr \reg1, [r0], #4 - ldr \reg2, [r0], #4 - .endm - - .macro load4l, reg1, reg2, reg3, reg4 - ldmia r0!, {\reg1, \reg2, \reg3, \reg4} - .endm - -#define FN_ENTRY ENTRY(csum_partial_copy_nocheck) - -#include "csumpartialcopygeneric.S" diff --git a/trunk/arch/arm26/lib/csumpartialcopygeneric.S b/trunk/arch/arm26/lib/csumpartialcopygeneric.S deleted file mode 100644 index 5249c3ad11db..000000000000 --- a/trunk/arch/arm26/lib/csumpartialcopygeneric.S +++ /dev/null @@ -1,352 +0,0 @@ -/* - * linux/arch/arm26/lib/csumpartialcopygeneric.S - * - * Copyright (C) 1995-2001 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * JMA 01/06/03 Commented out some shl0s; probobly irrelevant to arm26 - * - */ - -/* - * unsigned int - * csum_partial_copy_xxx(const char *src, char *dst, int len, int sum, ) - * r0 = src, r1 = dst, r2 = len, r3 = sum - * Returns : r0 = checksum - * - * Note that 'tst' and 'teq' preserve the carry flag. - */ - -/* Quick hack */ - .macro save_regs - stmfd sp!, {r1, r4 - r8, fp, ip, lr, pc} - .endm - -/* end Quick Hack */ - -src .req r0 -dst .req r1 -len .req r2 -sum .req r3 - -.zero: mov r0, sum - load_regs ea - - /* - * Align an unaligned destination pointer. We know that - * we have >= 8 bytes here, so we don't need to check - * the length. Note that the source pointer hasn't been - * aligned yet. - */ -.dst_unaligned: tst dst, #1 - beq .dst_16bit - - load1b ip - sub len, len, #1 - adcs sum, sum, ip, lsl #byte(1) @ update checksum - strb ip, [dst], #1 - tst dst, #2 - moveq pc, lr @ dst is now 32bit aligned - -.dst_16bit: load2b r8, ip - sub len, len, #2 - adcs sum, sum, r8, lsl #byte(0) - strb r8, [dst], #1 - adcs sum, sum, ip, lsl #byte(1) - strb ip, [dst], #1 - mov pc, lr @ dst is now 32bit aligned - - /* - * Handle 0 to 7 bytes, with any alignment of source and - * destination pointers. Note that when we get here, C = 0 - */ -.less8: teq len, #0 @ check for zero count - beq .zero - - /* we must have at least one byte. */ - tst dst, #1 @ dst 16-bit aligned - beq .less8_aligned - - /* Align dst */ - load1b ip - sub len, len, #1 - adcs sum, sum, ip, lsl #byte(1) @ update checksum - strb ip, [dst], #1 - tst len, #6 - beq .less8_byteonly - -1: load2b r8, ip - sub len, len, #2 - adcs sum, sum, r8, lsl #byte(0) - strb r8, [dst], #1 - adcs sum, sum, ip, lsl #byte(1) - strb ip, [dst], #1 -.less8_aligned: tst len, #6 - bne 1b -.less8_byteonly: - tst len, #1 - beq .done - load1b r8 - adcs sum, sum, r8, lsl #byte(0) @ update checksum - strb r8, [dst], #1 - b .done - -FN_ENTRY - mov ip, sp - save_regs - sub fp, ip, #4 - - cmp len, #8 @ Ensure that we have at least - blo .less8 @ 8 bytes to copy. - - adds sum, sum, #0 @ C = 0 - tst dst, #3 @ Test destination alignment - blne .dst_unaligned @ align destination, return here - - /* - * Ok, the dst pointer is now 32bit aligned, and we know - * that we must have more than 4 bytes to copy. Note - * that C contains the carry from the dst alignment above. - */ - - tst src, #3 @ Test source alignment - bne .src_not_aligned - - /* Routine for src & dst aligned */ - - bics ip, len, #15 - beq 2f - -1: load4l r4, r5, r6, r7 - stmia dst!, {r4, r5, r6, r7} - adcs sum, sum, r4 - adcs sum, sum, r5 - adcs sum, sum, r6 - adcs sum, sum, r7 - sub ip, ip, #16 - teq ip, #0 - bne 1b - -2: ands ip, len, #12 - beq 4f - tst ip, #8 - beq 3f - load2l r4, r5 - stmia dst!, {r4, r5} - adcs sum, sum, r4 - adcs sum, sum, r5 - tst ip, #4 - beq 4f - -3: load1l r4 - str r4, [dst], #4 - adcs sum, sum, r4 - -4: ands len, len, #3 - beq .done - load1l r4 - tst len, #2 -/* mov r5, r4, lsr #byte(0) -FIXME? 0 Shift anyhow! -*/ - beq .exit - adcs sum, sum, r4, push #16 - strb r5, [dst], #1 - mov r5, r4, lsr #byte(1) - strb r5, [dst], #1 - mov r5, r4, lsr #byte(2) -.exit: tst len, #1 - strneb r5, [dst], #1 - andne r5, r5, #255 - adcnes sum, sum, r5, lsl #byte(0) - - /* - * If the dst pointer was not 16-bit aligned, we - * need to rotate the checksum here to get around - * the inefficient byte manipulations in the - * architecture independent code. - */ -.done: adc r0, sum, #0 - ldr sum, [sp, #0] @ dst - tst sum, #1 - movne sum, r0, lsl #8 - orrne r0, sum, r0, lsr #24 - load_regs ea - -.src_not_aligned: - adc sum, sum, #0 @ include C from dst alignment - and ip, src, #3 - bic src, src, #3 - load1l r5 - cmp ip, #2 - beq .src2_aligned - bhi .src3_aligned - mov r4, r5, pull #8 @ C = 0 - bics ip, len, #15 - beq 2f -1: load4l r5, r6, r7, r8 - orr r4, r4, r5, push #24 - mov r5, r5, pull #8 - orr r5, r5, r6, push #24 - mov r6, r6, pull #8 - orr r6, r6, r7, push #24 - mov r7, r7, pull #8 - orr r7, r7, r8, push #24 - stmia dst!, {r4, r5, r6, r7} - adcs sum, sum, r4 - adcs sum, sum, r5 - adcs sum, sum, r6 - adcs sum, sum, r7 - mov r4, r8, pull #8 - sub ip, ip, #16 - teq ip, #0 - bne 1b -2: ands ip, len, #12 - beq 4f - tst ip, #8 - beq 3f - load2l r5, r6 - orr r4, r4, r5, push #24 - mov r5, r5, pull #8 - orr r5, r5, r6, push #24 - stmia dst!, {r4, r5} - adcs sum, sum, r4 - adcs sum, sum, r5 - mov r4, r6, pull #8 - tst ip, #4 - beq 4f -3: load1l r5 - orr r4, r4, r5, push #24 - str r4, [dst], #4 - adcs sum, sum, r4 - mov r4, r5, pull #8 -4: ands len, len, #3 - beq .done -/* mov r5, r4, lsr #byte(0) -FIXME? 0 Shift anyhow -*/ - tst len, #2 - beq .exit - adcs sum, sum, r4, push #16 - strb r5, [dst], #1 - mov r5, r4, lsr #byte(1) - strb r5, [dst], #1 - mov r5, r4, lsr #byte(2) - b .exit - -.src2_aligned: mov r4, r5, pull #16 - adds sum, sum, #0 - bics ip, len, #15 - beq 2f -1: load4l r5, r6, r7, r8 - orr r4, r4, r5, push #16 - mov r5, r5, pull #16 - orr r5, r5, r6, push #16 - mov r6, r6, pull #16 - orr r6, r6, r7, push #16 - mov r7, r7, pull #16 - orr r7, r7, r8, push #16 - stmia dst!, {r4, r5, r6, r7} - adcs sum, sum, r4 - adcs sum, sum, r5 - adcs sum, sum, r6 - adcs sum, sum, r7 - mov r4, r8, pull #16 - sub ip, ip, #16 - teq ip, #0 - bne 1b -2: ands ip, len, #12 - beq 4f - tst ip, #8 - beq 3f - load2l r5, r6 - orr r4, r4, r5, push #16 - mov r5, r5, pull #16 - orr r5, r5, r6, push #16 - stmia dst!, {r4, r5} - adcs sum, sum, r4 - adcs sum, sum, r5 - mov r4, r6, pull #16 - tst ip, #4 - beq 4f -3: load1l r5 - orr r4, r4, r5, push #16 - str r4, [dst], #4 - adcs sum, sum, r4 - mov r4, r5, pull #16 -4: ands len, len, #3 - beq .done -/* mov r5, r4, lsr #byte(0) -FIXME? 0 Shift anyhow -*/ - tst len, #2 - beq .exit - adcs sum, sum, r4 - strb r5, [dst], #1 - mov r5, r4, lsr #byte(1) - strb r5, [dst], #1 - tst len, #1 - beq .done - load1b r5 - b .exit - -.src3_aligned: mov r4, r5, pull #24 - adds sum, sum, #0 - bics ip, len, #15 - beq 2f -1: load4l r5, r6, r7, r8 - orr r4, r4, r5, push #8 - mov r5, r5, pull #24 - orr r5, r5, r6, push #8 - mov r6, r6, pull #24 - orr r6, r6, r7, push #8 - mov r7, r7, pull #24 - orr r7, r7, r8, push #8 - stmia dst!, {r4, r5, r6, r7} - adcs sum, sum, r4 - adcs sum, sum, r5 - adcs sum, sum, r6 - adcs sum, sum, r7 - mov r4, r8, pull #24 - sub ip, ip, #16 - teq ip, #0 - bne 1b -2: ands ip, len, #12 - beq 4f - tst ip, #8 - beq 3f - load2l r5, r6 - orr r4, r4, r5, push #8 - mov r5, r5, pull #24 - orr r5, r5, r6, push #8 - stmia dst!, {r4, r5} - adcs sum, sum, r4 - adcs sum, sum, r5 - mov r4, r6, pull #24 - tst ip, #4 - beq 4f -3: load1l r5 - orr r4, r4, r5, push #8 - str r4, [dst], #4 - adcs sum, sum, r4 - mov r4, r5, pull #24 -4: ands len, len, #3 - beq .done -/* mov r5, r4, lsr #byte(0) -FIXME? 0 Shift anyhow -*/ - tst len, #2 - beq .exit - strb r5, [dst], #1 - adcs sum, sum, r4 - load1l r4 -/* mov r5, r4, lsr #byte(0) -FIXME? 0 Shift anyhow -*/ - strb r5, [dst], #1 - adcs sum, sum, r4, push #24 - mov r5, r4, lsr #byte(1) - b .exit diff --git a/trunk/arch/arm26/lib/csumpartialcopyuser.S b/trunk/arch/arm26/lib/csumpartialcopyuser.S deleted file mode 100644 index a98eea74305a..000000000000 --- a/trunk/arch/arm26/lib/csumpartialcopyuser.S +++ /dev/null @@ -1,114 +0,0 @@ -/* - * linux/arch/arm26/lib/csumpartialcopyuser.S - * - * Copyright (C) 1995-1998 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include -#include - - .text - - .macro save_regs - stmfd sp!, {r1 - r2, r4 - r9, fp, ip, lr, pc} - mov r9, sp, lsr #13 - mov r9, r9, lsl #13 - ldr r9, [r9, #TSK_ADDR_LIMIT] - mov r9, r9, lsr #24 - .endm - - .macro load_regs,flags - ldm\flags fp, {r1, r2, r4-r9, fp, sp, pc}^ - .endm - - .macro load1b, reg1 - tst r9, #0x01 -9999: ldreqbt \reg1, [r0], #1 - ldrneb \reg1, [r0], #1 - .section __ex_table, "a" - .align 3 - .long 9999b, 6001f - .previous - .endm - - .macro load2b, reg1, reg2 - tst r9, #0x01 -9999: ldreqbt \reg1, [r0], #1 - ldrneb \reg1, [r0], #1 -9998: ldreqbt \reg2, [r0], #1 - ldrneb \reg2, [r0], #1 - .section __ex_table, "a" - .long 9999b, 6001f - .long 9998b, 6001f - .previous - .endm - - .macro load1l, reg1 - tst r9, #0x01 -9999: ldreqt \reg1, [r0], #4 - ldrne \reg1, [r0], #4 - .section __ex_table, "a" - .align 3 - .long 9999b, 6001f - .previous - .endm - - .macro load2l, reg1, reg2 - tst r9, #0x01 - ldmneia r0!, {\reg1, \reg2} -9999: ldreqt \reg1, [r0], #4 -9998: ldreqt \reg2, [r0], #4 - .section __ex_table, "a" - .long 9999b, 6001f - .long 9998b, 6001f - .previous - .endm - - .macro load4l, reg1, reg2, reg3, reg4 - tst r9, #0x01 - ldmneia r0!, {\reg1, \reg2, \reg3, \reg4} -9999: ldreqt \reg1, [r0], #4 -9998: ldreqt \reg2, [r0], #4 -9997: ldreqt \reg3, [r0], #4 -9996: ldreqt \reg4, [r0], #4 - .section __ex_table, "a" - .long 9999b, 6001f - .long 9998b, 6001f - .long 9997b, 6001f - .long 9996b, 6001f - .previous - .endm - -/* - * unsigned int - * csum_partial_copy_from_user(const char *src, char *dst, int len, int sum, int *err_ptr) - * r0 = src, r1 = dst, r2 = len, r3 = sum, [sp] = *err_ptr - * Returns : r0 = checksum, [[sp, #0], #0] = 0 or -EFAULT - */ - -#define FN_ENTRY ENTRY(csum_partial_copy_from_user) - -#include "csumpartialcopygeneric.S" - -/* - * FIXME: minor buglet here - * We don't return the checksum for the data present in the buffer. To do - * so properly, we would have to add in whatever registers were loaded before - * the fault, which, with the current asm above is not predictable. - */ - .align 4 -6001: mov r4, #-EFAULT - ldr r5, [fp, #4] @ *err_ptr - str r4, [r5] - ldmia sp, {r1, r2} @ retrieve dst, len - add r2, r2, r1 - mov r0, #0 @ zero the buffer -6002: teq r2, r1 - strneb r0, [r1], #1 - bne 6002b - load_regs ea diff --git a/trunk/arch/arm26/lib/delay.S b/trunk/arch/arm26/lib/delay.S deleted file mode 100644 index 66f2b68e1b13..000000000000 --- a/trunk/arch/arm26/lib/delay.S +++ /dev/null @@ -1,57 +0,0 @@ -/* - * linux/arch/arm26/lib/delay.S - * - * Copyright (C) 1995, 1996 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include - .text - -LC0: .word loops_per_jiffy - -/* - * 0 <= r0 <= 2000 - */ -ENTRY(udelay) - mov r2, #0x6800 - orr r2, r2, #0x00db - mul r1, r0, r2 - ldr r2, LC0 - ldr r2, [r2] - mov r1, r1, lsr #11 - mov r2, r2, lsr #11 - mul r0, r1, r2 - movs r0, r0, lsr #6 - RETINSTR(moveq,pc,lr) - -/* - * loops = (r0 * 0x10c6 * 100 * loops_per_jiffy) / 2^32 - * - * Oh, if only we had a cycle counter... - */ - -@ Delay routine -ENTRY(__delay) - subs r0, r0, #1 -#if 0 - RETINSTR(movls,pc,lr) - subs r0, r0, #1 - RETINSTR(movls,pc,lr) - subs r0, r0, #1 - RETINSTR(movls,pc,lr) - subs r0, r0, #1 - RETINSTR(movls,pc,lr) - subs r0, r0, #1 - RETINSTR(movls,pc,lr) - subs r0, r0, #1 - RETINSTR(movls,pc,lr) - subs r0, r0, #1 - RETINSTR(movls,pc,lr) - subs r0, r0, #1 -#endif - bhi __delay - RETINSTR(mov,pc,lr) diff --git a/trunk/arch/arm26/lib/ecard.S b/trunk/arch/arm26/lib/ecard.S deleted file mode 100644 index 658bc4529c9d..000000000000 --- a/trunk/arch/arm26/lib/ecard.S +++ /dev/null @@ -1,40 +0,0 @@ -/* - * linux/arch/arm26/lib/ecard.S - * - * Copyright (C) 1995, 1996 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include - -#define CPSR2SPSR(rt) - -@ Purpose: call an expansion card loader to read bytes. -@ Proto : char read_loader(int offset, char *card_base, char *loader); -@ Returns: byte read - -ENTRY(ecard_loader_read) - stmfd sp!, {r4 - r12, lr} - mov r11, r1 - mov r1, r0 - CPSR2SPSR(r0) - mov lr, pc - mov pc, r2 - LOADREGS(fd, sp!, {r4 - r12, pc}) - -@ Purpose: call an expansion card loader to reset the card -@ Proto : void read_loader(int card_base, char *loader); -@ Returns: byte read - -ENTRY(ecard_loader_reset) - stmfd sp!, {r4 - r12, lr} - mov r11, r0 - CPSR2SPSR(r0) - mov lr, pc - add pc, r1, #8 - LOADREGS(fd, sp!, {r4 - r12, pc}) - diff --git a/trunk/arch/arm26/lib/findbit.S b/trunk/arch/arm26/lib/findbit.S deleted file mode 100644 index 26f67cccc37c..000000000000 --- a/trunk/arch/arm26/lib/findbit.S +++ /dev/null @@ -1,67 +0,0 @@ -/* - * linux/arch/arm/lib/findbit.S - * - * Copyright (C) 1995-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * 16th March 2001 - John Ripley - * Fixed so that "size" is an exclusive not an inclusive quantity. - * All users of these functions expect exclusive sizes, and may - * also call with zero size. - * Reworked by rmk. - */ -#include -#include - .text - -/* - * Purpose : Find a 'zero' bit - * Prototype: int find_first_zero_bit(void *addr, unsigned int maxbit); - */ -ENTRY(_find_first_zero_bit_le) - teq r1, #0 - beq 3f - mov r2, #0 -1: ldrb r3, [r0, r2, lsr #3] - eors r3, r3, #0xff @ invert bits - bne .found @ any now set - found zero bit - add r2, r2, #8 @ next bit pointer -2: cmp r2, r1 @ any more? - blo 1b -3: mov r0, r1 @ no free bits - RETINSTR(mov,pc,lr) - -/* - * Purpose : Find next 'zero' bit - * Prototype: int find_next_zero_bit(void *addr, unsigned int maxbit, int offset) - */ -ENTRY(_find_next_zero_bit_le) - teq r1, #0 - beq 2b - ands ip, r2, #7 - beq 1b @ If new byte, goto old routine - ldrb r3, [r0, r2, lsr #3] - eor r3, r3, #0xff @ now looking for a 1 bit - movs r3, r3, lsr ip @ shift off unused bits - bne .found - orr r2, r2, #7 @ if zero, then no bits here - add r2, r2, #1 @ align bit pointer - b 2b @ loop for next bit - -/* - * One or more bits in the LSB of r3 are assumed to be set. - */ -.found: tst r3, #0x0f - addeq r2, r2, #4 - movne r3, r3, lsl #4 - tst r3, #0x30 - addeq r2, r2, #2 - movne r3, r3, lsl #2 - tst r3, #0x40 - addeq r2, r2, #1 - mov r0, r2 - RETINSTR(mov,pc,lr) - diff --git a/trunk/arch/arm26/lib/floppydma.S b/trunk/arch/arm26/lib/floppydma.S deleted file mode 100644 index e99ebbb20353..000000000000 --- a/trunk/arch/arm26/lib/floppydma.S +++ /dev/null @@ -1,32 +0,0 @@ -/* - * linux/arch/arm26/lib/floppydma.S - * - * Copyright (C) 1995, 1996 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include - .text - - .global floppy_fiqin_end -ENTRY(floppy_fiqin_start) - subs r9, r9, #1 - ldrgtb r12, [r11, #-4] - ldrleb r12, [r11], #0 - strb r12, [r10], #1 - subs pc, lr, #4 -floppy_fiqin_end: - - .global floppy_fiqout_end -ENTRY(floppy_fiqout_start) - subs r9, r9, #1 - ldrgeb r12, [r10], #1 - movlt r12, #0 - strleb r12, [r11], #0 - subles pc, lr, #4 - strb r12, [r11, #-4] - subs pc, lr, #4 -floppy_fiqout_end: diff --git a/trunk/arch/arm26/lib/gcclib.h b/trunk/arch/arm26/lib/gcclib.h deleted file mode 100644 index 9895e78904b5..000000000000 --- a/trunk/arch/arm26/lib/gcclib.h +++ /dev/null @@ -1,21 +0,0 @@ -/* gcclib.h -- definitions for various functions 'borrowed' from gcc-2.95.3 */ -/* I Molton 29/07/01 */ - -#define BITS_PER_UNIT 8 -#define SI_TYPE_SIZE (sizeof (SItype) * BITS_PER_UNIT) - -typedef unsigned int UQItype __attribute__ ((mode (QI))); -typedef int SItype __attribute__ ((mode (SI))); -typedef unsigned int USItype __attribute__ ((mode (SI))); -typedef int DItype __attribute__ ((mode (DI))); -typedef int word_type __attribute__ ((mode (__word__))); -typedef unsigned int UDItype __attribute__ ((mode (DI))); - -struct DIstruct {SItype low, high;}; - -typedef union -{ - struct DIstruct s; - DItype ll; -} DIunion; - diff --git a/trunk/arch/arm26/lib/getuser.S b/trunk/arch/arm26/lib/getuser.S deleted file mode 100644 index 2b1de7fbfe1f..000000000000 --- a/trunk/arch/arm26/lib/getuser.S +++ /dev/null @@ -1,112 +0,0 @@ -/* - * linux/arch/arm26/lib/getuser.S - * - * Copyright (C) 2001 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Idea from x86 version, (C) Copyright 1998 Linus Torvalds - * - * These functions have a non-standard call interface to make them more - * efficient, especially as they return an error value in addition to - * the "real" return value. - * - * __get_user_X - * - * Inputs: r0 contains the address - * Outputs: r0 is the error code - * r1, r2 contains the zero-extended value - * lr corrupted - * - * No other registers must be altered. (see include/asm-arm/uaccess.h - * for specific ASM register usage). - * - * Note that ADDR_LIMIT is either 0 or 0xc0000000. - * Note also that it is intended that __get_user_bad is not global. - */ -#include -#include -#include - - .global __get_user_1 -__get_user_1: - bic r1, sp, #0x1f00 - bic r1, r1, #0x00ff - str lr, [sp, #-4]! - ldr r1, [r1, #TI_ADDR_LIMIT] - sub r1, r1, #1 - cmp r0, r1 - bge __get_user_bad - cmp r0, #0x02000000 -1: ldrlsbt r1, [r0] - ldrgeb r1, [r0] - mov r0, #0 - ldmfd sp!, {pc}^ - - .global __get_user_2 -__get_user_2: - bic r2, sp, #0x1f00 - bic r2, r2, #0x00ff - str lr, [sp, #-4]! - ldr r2, [r2, #TI_ADDR_LIMIT] - sub r2, r2, #2 - cmp r0, r2 - bge __get_user_bad - cmp r0, #0x02000000 -2: ldrlsbt r1, [r0], #1 -3: ldrlsbt r2, [r0] - ldrgeb r1, [r0], #1 - ldrgeb r2, [r0] - orr r1, r1, r2, lsl #8 - mov r0, #0 - ldmfd sp!, {pc}^ - - .global __get_user_4 -__get_user_4: - bic r1, sp, #0x1f00 - bic r1, r1, #0x00ff - str lr, [sp, #-4]! - ldr r1, [r1, #TI_ADDR_LIMIT] - sub r1, r1, #4 - cmp r0, r1 - bge __get_user_bad - cmp r0, #0x02000000 -4: ldrlst r1, [r0] - ldrge r1, [r0] - mov r0, #0 - ldmfd sp!, {pc}^ - - .global __get_user_8 -__get_user_8: - bic r2, sp, #0x1f00 - bic r2, r2, #0x00ff - str lr, [sp, #-4]! - ldr r2, [r2, #TI_ADDR_LIMIT] - sub r2, r2, #8 - cmp r0, r2 - bge __get_user_bad_8 - cmp r0, #0x02000000 -5: ldrlst r1, [r0], #4 -6: ldrlst r2, [r0] - ldrge r1, [r0], #4 - ldrge r2, [r0] - mov r0, #0 - ldmfd sp!, {pc}^ - -__get_user_bad_8: - mov r2, #0 -__get_user_bad: - mov r1, #0 - mov r0, #-EFAULT - ldmfd sp!, {pc}^ - -.section __ex_table, "a" - .long 1b, __get_user_bad - .long 2b, __get_user_bad - .long 3b, __get_user_bad - .long 4b, __get_user_bad - .long 5b, __get_user_bad_8 - .long 6b, __get_user_bad_8 -.previous diff --git a/trunk/arch/arm26/lib/io-acorn.S b/trunk/arch/arm26/lib/io-acorn.S deleted file mode 100644 index 5f62ade5be39..000000000000 --- a/trunk/arch/arm26/lib/io-acorn.S +++ /dev/null @@ -1,70 +0,0 @@ -/* - * linux/arch/arm26/lib/io-acorn.S - * - * Copyright (C) 1995, 1996 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include - - .text - .align - - .equ diff_pcio_base, PCIO_BASE - IO_BASE - - .macro outw2 rd - mov r8, \rd, lsl #16 - orr r8, r8, r8, lsr #16 - str r8, [r3, r0, lsl #2] - mov r8, \rd, lsr #16 - orr r8, r8, r8, lsl #16 - str r8, [r3, r0, lsl #2] - .endm - - .macro inw2 rd, mask, temp - ldr \rd, [r0] - and \rd, \rd, \mask - ldr \temp, [r0] - orr \rd, \rd, \temp, lsl #16 - .endm - - .macro addr rd - tst \rd, #0x80000000 - mov \rd, \rd, lsl #2 - add \rd, \rd, #IO_BASE - addeq \rd, \rd, #diff_pcio_base - .endm - -.iosl_warning: - .ascii "<4>insl/outsl not implemented, called from %08lX\0" - .align - -/* - * These make no sense on Acorn machines. - * Print a warning message. - */ -ENTRY(insl) -ENTRY(outsl) - adr r0, .iosl_warning - mov r1, lr - b printk - -@ Purpose: write a memc register -@ Proto : void memc_write(int register, int value); -@ Returns: nothing - -ENTRY(memc_write) - cmp r0, #7 - RETINSTR(movgt,pc,lr) - mov r0, r0, lsl #17 - mov r1, r1, lsl #15 - mov r1, r1, lsr #17 - orr r0, r0, r1, lsl #2 - add r0, r0, #0x03600000 - strb r0, [r0] - RETINSTR(mov,pc,lr) - diff --git a/trunk/arch/arm26/lib/io-readsb.S b/trunk/arch/arm26/lib/io-readsb.S deleted file mode 100644 index 4c4d99c05856..000000000000 --- a/trunk/arch/arm26/lib/io-readsb.S +++ /dev/null @@ -1,116 +0,0 @@ -/* - * linux/arch/arm26/lib/io-readsb.S - * - * Copyright (C) 1995-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include - -.insb_align: rsb ip, ip, #4 - cmp ip, r2 - movgt ip, r2 - cmp ip, #2 - ldrb r3, [r0] - strb r3, [r1], #1 - ldrgeb r3, [r0] - strgeb r3, [r1], #1 - ldrgtb r3, [r0] - strgtb r3, [r1], #1 - subs r2, r2, ip - bne .insb_aligned - -ENTRY(__raw_readsb) - teq r2, #0 @ do we have to check for the zero len? - moveq pc, lr - ands ip, r1, #3 - bne .insb_align - -.insb_aligned: stmfd sp!, {r4 - r6, lr} - - subs r2, r2, #16 - bmi .insb_no_16 - -.insb_16_lp: ldrb r3, [r0] - ldrb r4, [r0] - orr r3, r3, r4, lsl #8 - ldrb r4, [r0] - orr r3, r3, r4, lsl #16 - ldrb r4, [r0] - orr r3, r3, r4, lsl #24 - ldrb r4, [r0] - ldrb r5, [r0] - orr r4, r4, r5, lsl #8 - ldrb r5, [r0] - orr r4, r4, r5, lsl #16 - ldrb r5, [r0] - orr r4, r4, r5, lsl #24 - ldrb r5, [r0] - ldrb r6, [r0] - orr r5, r5, r6, lsl #8 - ldrb r6, [r0] - orr r5, r5, r6, lsl #16 - ldrb r6, [r0] - orr r5, r5, r6, lsl #24 - ldrb r6, [r0] - ldrb ip, [r0] - orr r6, r6, ip, lsl #8 - ldrb ip, [r0] - orr r6, r6, ip, lsl #16 - ldrb ip, [r0] - orr r6, r6, ip, lsl #24 - stmia r1!, {r3 - r6} - - subs r2, r2, #16 - bpl .insb_16_lp - - tst r2, #15 - LOADREGS(eqfd, sp!, {r4 - r6, pc}) - -.insb_no_16: tst r2, #8 - beq .insb_no_8 - - ldrb r3, [r0] - ldrb r4, [r0] - orr r3, r3, r4, lsl #8 - ldrb r4, [r0] - orr r3, r3, r4, lsl #16 - ldrb r4, [r0] - orr r3, r3, r4, lsl #24 - ldrb r4, [r0] - ldrb r5, [r0] - orr r4, r4, r5, lsl #8 - ldrb r5, [r0] - orr r4, r4, r5, lsl #16 - ldrb r5, [r0] - orr r4, r4, r5, lsl #24 - stmia r1!, {r3, r4} - -.insb_no_8: tst r2, #4 - beq .insb_no_4 - - ldrb r3, [r0] - ldrb r4, [r0] - orr r3, r3, r4, lsl #8 - ldrb r4, [r0] - orr r3, r3, r4, lsl #16 - ldrb r4, [r0] - orr r3, r3, r4, lsl #24 - str r3, [r1], #4 - -.insb_no_4: ands r2, r2, #3 - LOADREGS(eqfd, sp!, {r4 - r6, pc}) - - cmp r2, #2 - ldrb r3, [r0] - strb r3, [r1], #1 - ldrgeb r3, [r0] - strgeb r3, [r1], #1 - ldrgtb r3, [r0] - strgtb r3, [r1] - - LOADREGS(fd, sp!, {r4 - r6, pc}) diff --git a/trunk/arch/arm26/lib/io-readsl.S b/trunk/arch/arm26/lib/io-readsl.S deleted file mode 100644 index 7be208bd23c6..000000000000 --- a/trunk/arch/arm26/lib/io-readsl.S +++ /dev/null @@ -1,78 +0,0 @@ -/* - * linux/arch/arm26/lib/io-readsl.S - * - * Copyright (C) 1995-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include - -/* - * Note that some reads can be aligned on half-word boundaries. - */ -ENTRY(__raw_readsl) - teq r2, #0 @ do we have to check for the zero len? - moveq pc, lr - ands ip, r1, #3 - bne 2f - -1: ldr r3, [r0] - str r3, [r1], #4 - subs r2, r2, #1 - bne 1b - mov pc, lr - -2: cmp ip, #2 - ldr ip, [r0] - blt 4f - bgt 6f - - strb ip, [r1], #1 - mov ip, ip, lsr #8 - strb ip, [r1], #1 - mov ip, ip, lsr #8 -3: subs r2, r2, #1 - ldrne r3, [r0] - orrne ip, ip, r3, lsl #16 - strne ip, [r1], #4 - movne ip, r3, lsr #16 - bne 3b - strb ip, [r1], #1 - mov ip, ip, lsr #8 - strb ip, [r1], #1 - mov pc, lr - -4: strb ip, [r1], #1 - mov ip, ip, lsr #8 - strb ip, [r1], #1 - mov ip, ip, lsr #8 - strb ip, [r1], #1 - mov ip, ip, lsr #8 -5: subs r2, r2, #1 - ldrne r3, [r0] - orrne ip, ip, r3, lsl #8 - strne ip, [r1], #4 - movne ip, r3, lsr #24 - bne 5b - strb ip, [r1], #1 - mov pc, lr - -6: strb ip, [r1], #1 - mov ip, ip, lsr #8 -7: subs r2, r2, #1 - ldrne r3, [r0] - orrne ip, ip, r3, lsl #24 - strne ip, [r1], #4 - movne ip, r3, lsr #8 - bne 7b - strb ip, [r1], #1 - mov ip, ip, lsr #8 - strb ip, [r1], #1 - mov ip, ip, lsr #8 - strb ip, [r1], #1 - mov pc, lr - diff --git a/trunk/arch/arm26/lib/io-readsw.S b/trunk/arch/arm26/lib/io-readsw.S deleted file mode 100644 index c65c1f28fcff..000000000000 --- a/trunk/arch/arm26/lib/io-readsw.S +++ /dev/null @@ -1,107 +0,0 @@ -/* - * linux/arch/arm26/lib/io-readsw.S - * - * Copyright (C) 1995-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include - -.insw_bad_alignment: - adr r0, .insw_bad_align_msg - mov r2, lr - b panic -.insw_bad_align_msg: - .asciz "insw: bad buffer alignment (0x%p, lr=0x%08lX)\n" - .align - -.insw_align: tst r1, #1 - bne .insw_bad_alignment - - ldr r3, [r0] - strb r3, [r1], #1 - mov r3, r3, lsr #8 - strb r3, [r1], #1 - - subs r2, r2, #1 - RETINSTR(moveq, pc, lr) - -ENTRY(__raw_readsw) - teq r2, #0 @ do we have to check for the zero len? - moveq pc, lr - tst r1, #3 - bne .insw_align - -.insw_aligned: mov ip, #0xff - orr ip, ip, ip, lsl #8 - stmfd sp!, {r4, r5, r6, lr} - - subs r2, r2, #8 - bmi .no_insw_8 - -.insw_8_lp: ldr r3, [r0] - and r3, r3, ip - ldr r4, [r0] - orr r3, r3, r4, lsl #16 - - ldr r4, [r0] - and r4, r4, ip - ldr r5, [r0] - orr r4, r4, r5, lsl #16 - - ldr r5, [r0] - and r5, r5, ip - ldr r6, [r0] - orr r5, r5, r6, lsl #16 - - ldr r6, [r0] - and r6, r6, ip - ldr lr, [r0] - orr r6, r6, lr, lsl #16 - - stmia r1!, {r3 - r6} - - subs r2, r2, #8 - bpl .insw_8_lp - - tst r2, #7 - LOADREGS(eqfd, sp!, {r4, r5, r6, pc}) - -.no_insw_8: tst r2, #4 - beq .no_insw_4 - - ldr r3, [r0] - and r3, r3, ip - ldr r4, [r0] - orr r3, r3, r4, lsl #16 - - ldr r4, [r0] - and r4, r4, ip - ldr r5, [r0] - orr r4, r4, r5, lsl #16 - - stmia r1!, {r3, r4} - -.no_insw_4: tst r2, #2 - beq .no_insw_2 - - ldr r3, [r0] - and r3, r3, ip - ldr r4, [r0] - orr r3, r3, r4, lsl #16 - - str r3, [r1], #4 - -.no_insw_2: tst r2, #1 - ldrne r3, [r0] - strneb r3, [r1], #1 - movne r3, r3, lsr #8 - strneb r3, [r1] - - LOADREGS(fd, sp!, {r4, r5, r6, pc}) - - diff --git a/trunk/arch/arm26/lib/io-writesb.S b/trunk/arch/arm26/lib/io-writesb.S deleted file mode 100644 index 16251b4d5101..000000000000 --- a/trunk/arch/arm26/lib/io-writesb.S +++ /dev/null @@ -1,122 +0,0 @@ -/* - * linux/arch/arm26/lib/io-writesb.S - * - * Copyright (C) 1995-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include - -.outsb_align: rsb ip, ip, #4 - cmp ip, r2 - movgt ip, r2 - cmp ip, #2 - ldrb r3, [r1], #1 - strb r3, [r0] - ldrgeb r3, [r1], #1 - strgeb r3, [r0] - ldrgtb r3, [r1], #1 - strgtb r3, [r0] - subs r2, r2, ip - bne .outsb_aligned - -ENTRY(__raw_writesb) - teq r2, #0 @ do we have to check for the zero len? - moveq pc, lr - ands ip, r1, #3 - bne .outsb_align - -.outsb_aligned: stmfd sp!, {r4 - r6, lr} - - subs r2, r2, #16 - bmi .outsb_no_16 - -.outsb_16_lp: ldmia r1!, {r3 - r6} - - strb r3, [r0] - mov r3, r3, lsr #8 - strb r3, [r0] - mov r3, r3, lsr #8 - strb r3, [r0] - mov r3, r3, lsr #8 - strb r3, [r0] - - strb r4, [r0] - mov r4, r4, lsr #8 - strb r4, [r0] - mov r4, r4, lsr #8 - strb r4, [r0] - mov r4, r4, lsr #8 - strb r4, [r0] - - strb r5, [r0] - mov r5, r5, lsr #8 - strb r5, [r0] - mov r5, r5, lsr #8 - strb r5, [r0] - mov r5, r5, lsr #8 - strb r5, [r0] - - strb r6, [r0] - mov r6, r6, lsr #8 - strb r6, [r0] - mov r6, r6, lsr #8 - strb r6, [r0] - mov r6, r6, lsr #8 - strb r6, [r0] - - subs r2, r2, #16 - bpl .outsb_16_lp - - tst r2, #15 - LOADREGS(eqfd, sp!, {r4 - r6, pc}) - -.outsb_no_16: tst r2, #8 - beq .outsb_no_8 - - ldmia r1!, {r3, r4} - - strb r3, [r0] - mov r3, r3, lsr #8 - strb r3, [r0] - mov r3, r3, lsr #8 - strb r3, [r0] - mov r3, r3, lsr #8 - strb r3, [r0] - - strb r4, [r0] - mov r4, r4, lsr #8 - strb r4, [r0] - mov r4, r4, lsr #8 - strb r4, [r0] - mov r4, r4, lsr #8 - strb r4, [r0] - -.outsb_no_8: tst r2, #4 - beq .outsb_no_4 - - ldr r3, [r1], #4 - strb r3, [r0] - mov r3, r3, lsr #8 - strb r3, [r0] - mov r3, r3, lsr #8 - strb r3, [r0] - mov r3, r3, lsr #8 - strb r3, [r0] - -.outsb_no_4: ands r2, r2, #3 - LOADREGS(eqfd, sp!, {r4 - r6, pc}) - - cmp r2, #2 - ldrb r3, [r1], #1 - strb r3, [r0] - ldrgeb r3, [r1], #1 - strgeb r3, [r0] - ldrgtb r3, [r1] - strgtb r3, [r0] - - LOADREGS(fd, sp!, {r4 - r6, pc}) diff --git a/trunk/arch/arm26/lib/io-writesl.S b/trunk/arch/arm26/lib/io-writesl.S deleted file mode 100644 index 4d6049b16e71..000000000000 --- a/trunk/arch/arm26/lib/io-writesl.S +++ /dev/null @@ -1,56 +0,0 @@ -/* - * linux/arch/arm26/lib/io-writesl.S - * - * Copyright (C) 1995-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include - -ENTRY(__raw_writesl) - teq r2, #0 @ do we have to check for the zero len? - moveq pc, lr - ands ip, r1, #3 - bne 2f - -1: ldr r3, [r1], #4 - str r3, [r0] - subs r2, r2, #1 - bne 1b - mov pc, lr - -2: bic r1, r1, #3 - cmp ip, #2 - ldr r3, [r1], #4 - bgt 4f - blt 5f - -3: mov ip, r3, lsr #16 - ldr r3, [r1], #4 - orr ip, ip, r3, lsl #16 - str ip, [r0] - subs r2, r2, #1 - bne 3b - mov pc, lr - -4: mov ip, r3, lsr #24 - ldr r3, [r1], #4 - orr ip, ip, r3, lsl #8 - str ip, [r0] - subs r2, r2, #1 - bne 4b - mov pc, lr - -5: mov ip, r3, lsr #8 - ldr r3, [r1], #4 - orr ip, ip, r3, lsl #24 - str ip, [r0] - subs r2, r2, #1 - bne 5b - mov pc, lr - - diff --git a/trunk/arch/arm26/lib/io-writesw.S b/trunk/arch/arm26/lib/io-writesw.S deleted file mode 100644 index a24f891f6b1c..000000000000 --- a/trunk/arch/arm26/lib/io-writesw.S +++ /dev/null @@ -1,127 +0,0 @@ -/* - * linux/arch/arm26/lib/io-writesw.S - * - * Copyright (C) 1995-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include - -.outsw_bad_alignment: - adr r0, .outsw_bad_align_msg - mov r2, lr - b panic -.outsw_bad_align_msg: - .asciz "outsw: bad buffer alignment (0x%p, lr=0x%08lX)\n" - .align - -.outsw_align: tst r1, #1 - bne .outsw_bad_alignment - - add r1, r1, #2 - - ldr r3, [r1, #-4] - mov r3, r3, lsr #16 - orr r3, r3, r3, lsl #16 - str r3, [r0] - subs r2, r2, #1 - RETINSTR(moveq, pc, lr) - -ENTRY(__raw_writesw) - teq r2, #0 @ do we have to check for the zero len? - moveq pc, lr - tst r1, #3 - bne .outsw_align - -.outsw_aligned: stmfd sp!, {r4, r5, r6, lr} - - subs r2, r2, #8 - bmi .no_outsw_8 - -.outsw_8_lp: ldmia r1!, {r3, r4, r5, r6} - - mov ip, r3, lsl #16 - orr ip, ip, ip, lsr #16 - str ip, [r0] - - mov ip, r3, lsr #16 - orr ip, ip, ip, lsl #16 - str ip, [r0] - - mov ip, r4, lsl #16 - orr ip, ip, ip, lsr #16 - str ip, [r0] - - mov ip, r4, lsr #16 - orr ip, ip, ip, lsl #16 - str ip, [r0] - - mov ip, r5, lsl #16 - orr ip, ip, ip, lsr #16 - str ip, [r0] - - mov ip, r5, lsr #16 - orr ip, ip, ip, lsl #16 - str ip, [r0] - - mov ip, r6, lsl #16 - orr ip, ip, ip, lsr #16 - str ip, [r0] - - mov ip, r6, lsr #16 - orr ip, ip, ip, lsl #16 - str ip, [r0] - - subs r2, r2, #8 - bpl .outsw_8_lp - - tst r2, #7 - LOADREGS(eqfd, sp!, {r4, r5, r6, pc}) - -.no_outsw_8: tst r2, #4 - beq .no_outsw_4 - - ldmia r1!, {r3, r4} - - mov ip, r3, lsl #16 - orr ip, ip, ip, lsr #16 - str ip, [r0] - - mov ip, r3, lsr #16 - orr ip, ip, ip, lsl #16 - str ip, [r0] - - mov ip, r4, lsl #16 - orr ip, ip, ip, lsr #16 - str ip, [r0] - - mov ip, r4, lsr #16 - orr ip, ip, ip, lsl #16 - str ip, [r0] - -.no_outsw_4: tst r2, #2 - beq .no_outsw_2 - - ldr r3, [r1], #4 - - mov ip, r3, lsl #16 - orr ip, ip, ip, lsr #16 - str ip, [r0] - - mov ip, r3, lsr #16 - orr ip, ip, ip, lsl #16 - str ip, [r0] - -.no_outsw_2: tst r2, #1 - - ldrne r3, [r1] - - movne ip, r3, lsl #16 - orrne ip, ip, ip, lsr #16 - strne ip, [r0] - - LOADREGS(fd, sp!, {r4, r5, r6, pc}) diff --git a/trunk/arch/arm26/lib/kbd.c b/trunk/arch/arm26/lib/kbd.c deleted file mode 100644 index cb56e943e006..000000000000 --- a/trunk/arch/arm26/lib/kbd.c +++ /dev/null @@ -1,278 +0,0 @@ -#include -//#include -#include - -/* - * Translation of escaped scancodes to keycodes. - * This is now user-settable. - * The keycodes 1-88,96-111,119 are fairly standard, and - * should probably not be changed - changing might confuse X. - * X also interprets scancode 0x5d (KEY_Begin). - * - * For 1-88 keycode equals scancode. - */ - -#define E0_KPENTER 96 -#define E0_RCTRL 97 -#define E0_KPSLASH 98 -#define E0_PRSCR 99 -#define E0_RALT 100 -#define E0_BREAK 101 /* (control-pause) */ -#define E0_HOME 102 -#define E0_UP 103 -#define E0_PGUP 104 -#define E0_LEFT 105 -#define E0_RIGHT 106 -#define E0_END 107 -#define E0_DOWN 108 -#define E0_PGDN 109 -#define E0_INS 110 -#define E0_DEL 111 - -/* for USB 106 keyboard */ -#define E0_YEN 124 -#define E0_BACKSLASH 89 - - -#define E1_PAUSE 119 - -/* - * The keycodes below are randomly located in 89-95,112-118,120-127. - * They could be thrown away (and all occurrences below replaced by 0), - * but that would force many users to use the `setkeycodes' utility, where - * they needed not before. It does not matter that there are duplicates, as - * long as no duplication occurs for any single keyboard. - */ -#define SC_LIM 89 - -#define FOCUS_PF1 85 /* actual code! */ -#define FOCUS_PF2 89 -#define FOCUS_PF3 90 -#define FOCUS_PF4 91 -#define FOCUS_PF5 92 -#define FOCUS_PF6 93 -#define FOCUS_PF7 94 -#define FOCUS_PF8 95 -#define FOCUS_PF9 120 -#define FOCUS_PF10 121 -#define FOCUS_PF11 122 -#define FOCUS_PF12 123 - -#define JAP_86 124 -/* tfj@olivia.ping.dk: - * The four keys are located over the numeric keypad, and are - * labelled A1-A4. It's an rc930 keyboard, from - * Regnecentralen/RC International, Now ICL. - * Scancodes: 59, 5a, 5b, 5c. - */ -#define RGN1 124 -#define RGN2 125 -#define RGN3 126 -#define RGN4 127 - -static unsigned char high_keys[128 - SC_LIM] = { - RGN1, RGN2, RGN3, RGN4, 0, 0, 0, /* 0x59-0x5f */ - 0, 0, 0, 0, 0, 0, 0, 0, /* 0x60-0x67 */ - 0, 0, 0, 0, 0, FOCUS_PF11, 0, FOCUS_PF12, /* 0x68-0x6f */ - 0, 0, 0, FOCUS_PF2, FOCUS_PF9, 0, 0, FOCUS_PF3, /* 0x70-0x77 */ - FOCUS_PF4, FOCUS_PF5, FOCUS_PF6, FOCUS_PF7, /* 0x78-0x7b */ - FOCUS_PF8, JAP_86, FOCUS_PF10, 0 /* 0x7c-0x7f */ -}; - -/* BTC */ -#define E0_MACRO 112 -/* LK450 */ -#define E0_F13 113 -#define E0_F14 114 -#define E0_HELP 115 -#define E0_DO 116 -#define E0_F17 117 -#define E0_KPMINPLUS 118 -/* - * My OmniKey generates e0 4c for the "OMNI" key and the - * right alt key does nada. [kkoller@nyx10.cs.du.edu] - */ -#define E0_OK 124 -/* - * New microsoft keyboard is rumoured to have - * e0 5b (left window button), e0 5c (right window button), - * e0 5d (menu button). [or: LBANNER, RBANNER, RMENU] - * [or: Windows_L, Windows_R, TaskMan] - */ -#define E0_MSLW 125 -#define E0_MSRW 126 -#define E0_MSTM 127 - -static unsigned char e0_keys[128] = { - 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00-0x07 */ - 0, 0, 0, 0, 0, 0, 0, 0, /* 0x08-0x0f */ - 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10-0x17 */ - 0, 0, 0, 0, E0_KPENTER, E0_RCTRL, 0, 0, /* 0x18-0x1f */ - 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20-0x27 */ - 0, 0, 0, 0, 0, 0, 0, 0, /* 0x28-0x2f */ - 0, 0, 0, 0, 0, E0_KPSLASH, 0, E0_PRSCR, /* 0x30-0x37 */ - E0_RALT, 0, 0, 0, 0, E0_F13, E0_F14, E0_HELP, /* 0x38-0x3f */ - E0_DO, E0_F17, 0, 0, 0, 0, E0_BREAK, E0_HOME, /* 0x40-0x47 */ - E0_UP, E0_PGUP, 0, E0_LEFT, E0_OK, E0_RIGHT, E0_KPMINPLUS, E0_END, /* 0x48-0x4f */ - E0_DOWN, E0_PGDN, E0_INS, E0_DEL, 0, 0, 0, 0, /* 0x50-0x57 */ - 0, 0, 0, E0_MSLW, E0_MSRW, E0_MSTM, 0, 0, /* 0x58-0x5f */ - 0, 0, 0, 0, 0, 0, 0, 0, /* 0x60-0x67 */ - 0, 0, 0, 0, 0, 0, 0, E0_MACRO, /* 0x68-0x6f */ - //0, 0, 0, 0, 0, 0, 0, 0, /* 0x70-0x77 */ - 0, 0, 0, 0, 0, E0_BACKSLASH, 0, 0, /* 0x70-0x77 */ - 0, 0, 0, E0_YEN, 0, 0, 0, 0 /* 0x78-0x7f */ -}; - -static int gen_setkeycode(unsigned int scancode, unsigned int keycode) -{ - if (scancode < SC_LIM || scancode > 255 || keycode > 127) - return -EINVAL; - if (scancode < 128) - high_keys[scancode - SC_LIM] = keycode; - else - e0_keys[scancode - 128] = keycode; - return 0; -} - -static int gen_getkeycode(unsigned int scancode) -{ - return - (scancode < SC_LIM || scancode > 255) ? -EINVAL : - (scancode < - 128) ? high_keys[scancode - SC_LIM] : e0_keys[scancode - 128]; -} - -static int -gen_translate(unsigned char scancode, unsigned char *keycode, char raw_mode) -{ - static int prev_scancode; - - /* special prefix scancodes.. */ - if (scancode == 0xe0 || scancode == 0xe1) { - prev_scancode = scancode; - return 0; - } - - /* 0xFF is sent by a few keyboards, ignore it. 0x00 is error */ - if (scancode == 0x00 || scancode == 0xff) { - prev_scancode = 0; - return 0; - } - - scancode &= 0x7f; - - if (prev_scancode) { - /* - * usually it will be 0xe0, but a Pause key generates - * e1 1d 45 e1 9d c5 when pressed, and nothing when released - */ - if (prev_scancode != 0xe0) { - if (prev_scancode == 0xe1 && scancode == 0x1d) { - prev_scancode = 0x100; - return 0; - } - else if (prev_scancode == 0x100 - && scancode == 0x45) { - *keycode = E1_PAUSE; - prev_scancode = 0; - } else { -#ifdef KBD_REPORT_UNKN - if (!raw_mode) - printk(KERN_INFO - "keyboard: unknown e1 escape sequence\n"); -#endif - prev_scancode = 0; - return 0; - } - } else { - prev_scancode = 0; - /* - * The keyboard maintains its own internal caps lock and - * num lock statuses. In caps lock mode E0 AA precedes make - * code and E0 2A follows break code. In num lock mode, - * E0 2A precedes make code and E0 AA follows break code. - * We do our own book-keeping, so we will just ignore these. - */ - /* - * For my keyboard there is no caps lock mode, but there are - * both Shift-L and Shift-R modes. The former mode generates - * E0 2A / E0 AA pairs, the latter E0 B6 / E0 36 pairs. - * So, we should also ignore the latter. - aeb@cwi.nl - */ - if (scancode == 0x2a || scancode == 0x36) - return 0; - - if (e0_keys[scancode]) - *keycode = e0_keys[scancode]; - else { -#ifdef KBD_REPORT_UNKN - if (!raw_mode) - printk(KERN_INFO - "keyboard: unknown scancode e0 %02x\n", - scancode); -#endif - return 0; - } - } - } else if (scancode >= SC_LIM) { - /* This happens with the FOCUS 9000 keyboard - Its keys PF1..PF12 are reported to generate - 55 73 77 78 79 7a 7b 7c 74 7e 6d 6f - Moreover, unless repeated, they do not generate - key-down events, so we have to zero up_flag below */ - /* Also, Japanese 86/106 keyboards are reported to - generate 0x73 and 0x7d for \ - and \ | respectively. */ - /* Also, some Brazilian keyboard is reported to produce - 0x73 and 0x7e for \ ? and KP-dot, respectively. */ - - *keycode = high_keys[scancode - SC_LIM]; - - if (!*keycode) { - if (!raw_mode) { -#ifdef KBD_REPORT_UNKN - printk(KERN_INFO - "keyboard: unrecognized scancode (%02x)" - " - ignored\n", scancode); -#endif - } - return 0; - } - } else - *keycode = scancode; - return 1; -} - -static char gen_unexpected_up(unsigned char keycode) -{ - /* unexpected, but this can happen: maybe this was a key release for a - FOCUS 9000 PF key; if we want to see it, we have to clear up_flag */ - if (keycode >= SC_LIM || keycode == 85) - return 0; - else - return 0200; -} - -/* - * These are the default mappings - */ -int (*k_setkeycode)(unsigned int, unsigned int) = gen_setkeycode; -int (*k_getkeycode)(unsigned int) = gen_getkeycode; -int (*k_translate)(unsigned char, unsigned char *, char) = gen_translate; -char (*k_unexpected_up)(unsigned char) = gen_unexpected_up; -void (*k_leds)(unsigned char); - -/* Simple translation table for the SysRq keys */ - -#ifdef CONFIG_MAGIC_SYSRQ -static unsigned char gen_sysrq_xlate[128] = - "\000\0331234567890-=\177\t" /* 0x00 - 0x0f */ - "qwertyuiop[]\r\000as" /* 0x10 - 0x1f */ - "dfghjkl;'`\000\\zxcv" /* 0x20 - 0x2f */ - "bnm,./\000*\000 \000\201\202\203\204\205" /* 0x30 - 0x3f */ - "\206\207\210\211\212\000\000789-456+1" /* 0x40 - 0x4f */ - "230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000" /* 0x50 - 0x5f */ - "\r\000/"; /* 0x60 - 0x6f */ - -unsigned char *k_sysrq_xlate = gen_sysrq_xlate; -int k_sysrq_key = 0x54; -#endif diff --git a/trunk/arch/arm26/lib/lib1funcs.S b/trunk/arch/arm26/lib/lib1funcs.S deleted file mode 100644 index 0e29970b0e8a..000000000000 --- a/trunk/arch/arm26/lib/lib1funcs.S +++ /dev/null @@ -1,313 +0,0 @@ -@ libgcc1 routines for ARM cpu. -@ Division routines, written by Richard Earnshaw, (rearnsha@armltd.co.uk) - -/* Copyright (C) 1995, 1996, 1998 Free Software Foundation, Inc. - -This file is free software; you can redistribute it and/or modify it -under the terms of the GNU General Public License as published by the -Free Software Foundation; either version 2, or (at your option) any -later version. - -In addition to the permissions in the GNU General Public License, the -Free Software Foundation gives you unlimited permission to link the -compiled version of this file with other programs, and to distribute -those programs without any restriction coming from the use of this -file. (The General Public License restrictions do apply in other -respects; for example, they cover modification of the file, and -distribution when not linked into another program.) - -This file is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* As a special exception, if you link this library with other files, - some of which are compiled with GCC, to produce an executable, - this library does not by itself cause the resulting executable - to be covered by the GNU General Public License. - This exception does not however invalidate any other reasons why - the executable file might be covered by the GNU General Public License. - */ -/* This code is derived from gcc 2.95.3 */ -/* I Molton 29/07/01 */ - -#include -#include -#include - -#define RET movs -#define RETc(x) mov##x##s -#define RETCOND ^ - -dividend .req r0 -divisor .req r1 -result .req r2 -overdone .req r2 -curbit .req r3 -ip .req r12 -sp .req r13 -lr .req r14 -pc .req r15 - -ENTRY(__udivsi3) - cmp divisor, #0 - beq Ldiv0 - mov curbit, #1 - mov result, #0 - cmp dividend, divisor - bcc Lgot_result_udivsi3 -1: - @ Unless the divisor is very big, shift it up in multiples of - @ four bits, since this is the amount of unwinding in the main - @ division loop. Continue shifting until the divisor is - @ larger than the dividend. - cmp divisor, #0x10000000 - cmpcc divisor, dividend - movcc divisor, divisor, lsl #4 - movcc curbit, curbit, lsl #4 - bcc 1b - -2: - @ For very big divisors, we must shift it a bit at a time, or - @ we will be in danger of overflowing. - cmp divisor, #0x80000000 - cmpcc divisor, dividend - movcc divisor, divisor, lsl #1 - movcc curbit, curbit, lsl #1 - bcc 2b - -3: - @ Test for possible subtractions, and note which bits - @ are done in the result. On the final pass, this may subtract - @ too much from the dividend, but the result will be ok, since the - @ "bit" will have been shifted out at the bottom. - cmp dividend, divisor - subcs dividend, dividend, divisor - orrcs result, result, curbit - cmp dividend, divisor, lsr #1 - subcs dividend, dividend, divisor, lsr #1 - orrcs result, result, curbit, lsr #1 - cmp dividend, divisor, lsr #2 - subcs dividend, dividend, divisor, lsr #2 - orrcs result, result, curbit, lsr #2 - cmp dividend, divisor, lsr #3 - subcs dividend, dividend, divisor, lsr #3 - orrcs result, result, curbit, lsr #3 - cmp dividend, #0 @ Early termination? - movnes curbit, curbit, lsr #4 @ No, any more bits to do? - movne divisor, divisor, lsr #4 - bne 3b -Lgot_result_udivsi3: - mov r0, result - RET pc, lr - -Ldiv0: - str lr, [sp, #-4]! - bl __div0 - mov r0, #0 @ about as wrong as it could be - ldmia sp!, {pc}RETCOND - -/* __umodsi3 ----------------------- */ - -ENTRY(__umodsi3) - cmp divisor, #0 - beq Ldiv0 - mov curbit, #1 - cmp dividend, divisor - RETc(cc) pc, lr -1: - @ Unless the divisor is very big, shift it up in multiples of - @ four bits, since this is the amount of unwinding in the main - @ division loop. Continue shifting until the divisor is - @ larger than the dividend. - cmp divisor, #0x10000000 - cmpcc divisor, dividend - movcc divisor, divisor, lsl #4 - movcc curbit, curbit, lsl #4 - bcc 1b - -2: - @ For very big divisors, we must shift it a bit at a time, or - @ we will be in danger of overflowing. - cmp divisor, #0x80000000 - cmpcc divisor, dividend - movcc divisor, divisor, lsl #1 - movcc curbit, curbit, lsl #1 - bcc 2b - -3: - @ Test for possible subtractions. On the final pass, this may - @ subtract too much from the dividend, so keep track of which - @ subtractions are done, we can fix them up afterwards... - mov overdone, #0 - cmp dividend, divisor - subcs dividend, dividend, divisor - cmp dividend, divisor, lsr #1 - subcs dividend, dividend, divisor, lsr #1 - orrcs overdone, overdone, curbit, ror #1 - cmp dividend, divisor, lsr #2 - subcs dividend, dividend, divisor, lsr #2 - orrcs overdone, overdone, curbit, ror #2 - cmp dividend, divisor, lsr #3 - subcs dividend, dividend, divisor, lsr #3 - orrcs overdone, overdone, curbit, ror #3 - mov ip, curbit - cmp dividend, #0 @ Early termination? - movnes curbit, curbit, lsr #4 @ No, any more bits to do? - movne divisor, divisor, lsr #4 - bne 3b - - @ Any subtractions that we should not have done will be recorded in - @ the top three bits of "overdone". Exactly which were not needed - @ are governed by the position of the bit, stored in ip. - @ If we terminated early, because dividend became zero, - @ then none of the below will match, since the bit in ip will not be - @ in the bottom nibble. - ands overdone, overdone, #0xe0000000 - RETc(eq) pc, lr @ No fixups needed - tst overdone, ip, ror #3 - addne dividend, dividend, divisor, lsr #3 - tst overdone, ip, ror #2 - addne dividend, dividend, divisor, lsr #2 - tst overdone, ip, ror #1 - addne dividend, dividend, divisor, lsr #1 - RET pc, lr - -ENTRY(__divsi3) - eor ip, dividend, divisor @ Save the sign of the result. - mov curbit, #1 - mov result, #0 - cmp divisor, #0 - rsbmi divisor, divisor, #0 @ Loops below use unsigned. - beq Ldiv0 - cmp dividend, #0 - rsbmi dividend, dividend, #0 - cmp dividend, divisor - bcc Lgot_result_divsi3 - -1: - @ Unless the divisor is very big, shift it up in multiples of - @ four bits, since this is the amount of unwinding in the main - @ division loop. Continue shifting until the divisor is - @ larger than the dividend. - cmp divisor, #0x10000000 - cmpcc divisor, dividend - movcc divisor, divisor, lsl #4 - movcc curbit, curbit, lsl #4 - bcc 1b - -2: - @ For very big divisors, we must shift it a bit at a time, or - @ we will be in danger of overflowing. - cmp divisor, #0x80000000 - cmpcc divisor, dividend - movcc divisor, divisor, lsl #1 - movcc curbit, curbit, lsl #1 - bcc 2b - -3: - @ Test for possible subtractions, and note which bits - @ are done in the result. On the final pass, this may subtract - @ too much from the dividend, but the result will be ok, since the - @ "bit" will have been shifted out at the bottom. - cmp dividend, divisor - subcs dividend, dividend, divisor - orrcs result, result, curbit - cmp dividend, divisor, lsr #1 - subcs dividend, dividend, divisor, lsr #1 - orrcs result, result, curbit, lsr #1 - cmp dividend, divisor, lsr #2 - subcs dividend, dividend, divisor, lsr #2 - orrcs result, result, curbit, lsr #2 - cmp dividend, divisor, lsr #3 - subcs dividend, dividend, divisor, lsr #3 - orrcs result, result, curbit, lsr #3 - cmp dividend, #0 @ Early termination? - movnes curbit, curbit, lsr #4 @ No, any more bits to do? - movne divisor, divisor, lsr #4 - bne 3b -Lgot_result_divsi3: - mov r0, result - cmp ip, #0 - rsbmi r0, r0, #0 - RET pc, lr - -ENTRY(__modsi3) - mov curbit, #1 - cmp divisor, #0 - rsbmi divisor, divisor, #0 @ Loops below use unsigned. - beq Ldiv0 - @ Need to save the sign of the dividend, unfortunately, we need - @ ip later on; this is faster than pushing lr and using that. - str dividend, [sp, #-4]! - cmp dividend, #0 - rsbmi dividend, dividend, #0 - cmp dividend, divisor - bcc Lgot_result_modsi3 - -1: - @ Unless the divisor is very big, shift it up in multiples of - @ four bits, since this is the amount of unwinding in the main - @ division loop. Continue shifting until the divisor is - @ larger than the dividend. - cmp divisor, #0x10000000 - cmpcc divisor, dividend - movcc divisor, divisor, lsl #4 - movcc curbit, curbit, lsl #4 - bcc 1b - -2: - @ For very big divisors, we must shift it a bit at a time, or - @ we will be in danger of overflowing. - cmp divisor, #0x80000000 - cmpcc divisor, dividend - movcc divisor, divisor, lsl #1 - movcc curbit, curbit, lsl #1 - bcc 2b - -3: - @ Test for possible subtractions. On the final pass, this may - @ subtract too much from the dividend, so keep track of which - @ subtractions are done, we can fix them up afterwards... - mov overdone, #0 - cmp dividend, divisor - subcs dividend, dividend, divisor - cmp dividend, divisor, lsr #1 - subcs dividend, dividend, divisor, lsr #1 - orrcs overdone, overdone, curbit, ror #1 - cmp dividend, divisor, lsr #2 - subcs dividend, dividend, divisor, lsr #2 - orrcs overdone, overdone, curbit, ror #2 - cmp dividend, divisor, lsr #3 - subcs dividend, dividend, divisor, lsr #3 - orrcs overdone, overdone, curbit, ror #3 - mov ip, curbit - cmp dividend, #0 @ Early termination? - movnes curbit, curbit, lsr #4 @ No, any more bits to do? - movne divisor, divisor, lsr #4 - bne 3b - - @ Any subtractions that we should not have done will be recorded in - @ the top three bits of "overdone". Exactly which were not needed - @ are governed by the position of the bit, stored in ip. - @ If we terminated early, because dividend became zero, - @ then none of the below will match, since the bit in ip will not be - @ in the bottom nibble. - ands overdone, overdone, #0xe0000000 - beq Lgot_result_modsi3 - tst overdone, ip, ror #3 - addne dividend, dividend, divisor, lsr #3 - tst overdone, ip, ror #2 - addne dividend, dividend, divisor, lsr #2 - tst overdone, ip, ror #1 - addne dividend, dividend, divisor, lsr #1 -Lgot_result_modsi3: - ldr ip, [sp], #4 - cmp ip, #0 - rsbmi dividend, dividend, #0 - RET pc, lr diff --git a/trunk/arch/arm26/lib/longlong.h b/trunk/arch/arm26/lib/longlong.h deleted file mode 100644 index 05ec1abd6a2c..000000000000 --- a/trunk/arch/arm26/lib/longlong.h +++ /dev/null @@ -1,184 +0,0 @@ -/* longlong.h -- based on code from gcc-2.95.3 - - definitions for mixed size 32/64 bit arithmetic. - Copyright (C) 1991, 92, 94, 95, 96, 1997, 1998 Free Software Foundation, Inc. - - This definition file is free software; you can redistribute it - and/or modify it under the terms of the GNU General Public - License as published by the Free Software Foundation; either - version 2, or (at your option) any later version. - - This definition file is distributed in the hope that it will be - useful, but WITHOUT ANY WARRANTY; without even the implied - warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - See the GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* Borrowed from GCC 2.95.3, I Molton 29/07/01 */ - -#ifndef SI_TYPE_SIZE -#define SI_TYPE_SIZE 32 -#endif - -#define __BITS4 (SI_TYPE_SIZE / 4) -#define __ll_B (1L << (SI_TYPE_SIZE / 2)) -#define __ll_lowpart(t) ((USItype) (t) % __ll_B) -#define __ll_highpart(t) ((USItype) (t) / __ll_B) - -/* Define auxiliary asm macros. - - 1) umul_ppmm(high_prod, low_prod, multipler, multiplicand) - multiplies two USItype integers MULTIPLER and MULTIPLICAND, - and generates a two-part USItype product in HIGH_PROD and - LOW_PROD. - - 2) __umulsidi3(a,b) multiplies two USItype integers A and B, - and returns a UDItype product. This is just a variant of umul_ppmm. - - 3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator, - denominator) divides a two-word unsigned integer, composed by the - integers HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and - places the quotient in QUOTIENT and the remainder in REMAINDER. - HIGH_NUMERATOR must be less than DENOMINATOR for correct operation. - If, in addition, the most significant bit of DENOMINATOR must be 1, - then the pre-processor symbol UDIV_NEEDS_NORMALIZATION is defined to 1. - - 4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator, - denominator). Like udiv_qrnnd but the numbers are signed. The - quotient is rounded towards 0. - - 5) count_leading_zeros(count, x) counts the number of zero-bits from - the msb to the first non-zero bit. This is the number of steps X - needs to be shifted left to set the msb. Undefined for X == 0. - - 6) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1, - high_addend_2, low_addend_2) adds two two-word unsigned integers, - composed by HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and - LOW_ADDEND_2 respectively. The result is placed in HIGH_SUM and - LOW_SUM. Overflow (i.e. carry out) is not stored anywhere, and is - lost. - - 7) sub_ddmmss(high_difference, low_difference, high_minuend, - low_minuend, high_subtrahend, low_subtrahend) subtracts two - two-word unsigned integers, composed by HIGH_MINUEND_1 and - LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and LOW_SUBTRAHEND_2 - respectively. The result is placed in HIGH_DIFFERENCE and - LOW_DIFFERENCE. Overflow (i.e. carry out) is not stored anywhere, - and is lost. - - If any of these macros are left undefined for a particular CPU, - C macros are used. */ - -#if defined (__arm__) -#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ - __asm__ ("adds %1, %4, %5 \n\ - adc %0, %2, %3" \ - : "=r" ((USItype) (sh)), \ - "=&r" ((USItype) (sl)) \ - : "%r" ((USItype) (ah)), \ - "rI" ((USItype) (bh)), \ - "%r" ((USItype) (al)), \ - "rI" ((USItype) (bl))) -#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ - __asm__ ("subs %1, %4, %5 \n\ - sbc %0, %2, %3" \ - : "=r" ((USItype) (sh)), \ - "=&r" ((USItype) (sl)) \ - : "r" ((USItype) (ah)), \ - "rI" ((USItype) (bh)), \ - "r" ((USItype) (al)), \ - "rI" ((USItype) (bl))) -#define umul_ppmm(xh, xl, a, b) \ -{register USItype __t0, __t1, __t2; \ - __asm__ ("%@ Inlined umul_ppmm \n\ - mov %2, %5, lsr #16 \n\ - mov %0, %6, lsr #16 \n\ - bic %3, %5, %2, lsl #16 \n\ - bic %4, %6, %0, lsl #16 \n\ - mul %1, %3, %4 \n\ - mul %4, %2, %4 \n\ - mul %3, %0, %3 \n\ - mul %0, %2, %0 \n\ - adds %3, %4, %3 \n\ - addcs %0, %0, #65536 \n\ - adds %1, %1, %3, lsl #16 \n\ - adc %0, %0, %3, lsr #16" \ - : "=&r" ((USItype) (xh)), \ - "=r" ((USItype) (xl)), \ - "=&r" (__t0), "=&r" (__t1), "=r" (__t2) \ - : "r" ((USItype) (a)), \ - "r" ((USItype) (b)));} -#define UMUL_TIME 20 -#define UDIV_TIME 100 -#endif /* __arm__ */ - -#define __umulsidi3(u, v) \ - ({DIunion __w; \ - umul_ppmm (__w.s.high, __w.s.low, u, v); \ - __w.ll; }) - -#define __udiv_qrnnd_c(q, r, n1, n0, d) \ - do { \ - USItype __d1, __d0, __q1, __q0; \ - USItype __r1, __r0, __m; \ - __d1 = __ll_highpart (d); \ - __d0 = __ll_lowpart (d); \ - \ - __r1 = (n1) % __d1; \ - __q1 = (n1) / __d1; \ - __m = (USItype) __q1 * __d0; \ - __r1 = __r1 * __ll_B | __ll_highpart (n0); \ - if (__r1 < __m) \ - { \ - __q1--, __r1 += (d); \ - if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\ - if (__r1 < __m) \ - __q1--, __r1 += (d); \ - } \ - __r1 -= __m; \ - \ - __r0 = __r1 % __d1; \ - __q0 = __r1 / __d1; \ - __m = (USItype) __q0 * __d0; \ - __r0 = __r0 * __ll_B | __ll_lowpart (n0); \ - if (__r0 < __m) \ - { \ - __q0--, __r0 += (d); \ - if (__r0 >= (d)) \ - if (__r0 < __m) \ - __q0--, __r0 += (d); \ - } \ - __r0 -= __m; \ - \ - (q) = (USItype) __q1 * __ll_B | __q0; \ - (r) = __r0; \ - } while (0) - -#define UDIV_NEEDS_NORMALIZATION 1 -#define udiv_qrnnd __udiv_qrnnd_c - -extern const UQItype __clz_tab[]; -#define count_leading_zeros(count, x) \ - do { \ - USItype __xr = (x); \ - USItype __a; \ - \ - if (SI_TYPE_SIZE <= 32) \ - { \ - __a = __xr < ((USItype)1<<2*__BITS4) \ - ? (__xr < ((USItype)1<<__BITS4) ? 0 : __BITS4) \ - : (__xr < ((USItype)1<<3*__BITS4) ? 2*__BITS4 : 3*__BITS4); \ - } \ - else \ - { \ - for (__a = SI_TYPE_SIZE - 8; __a > 0; __a -= 8) \ - if (((__xr >> __a) & 0xff) != 0) \ - break; \ - } \ - \ - (count) = SI_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a); \ - } while (0) diff --git a/trunk/arch/arm26/lib/lshrdi3.c b/trunk/arch/arm26/lib/lshrdi3.c deleted file mode 100644 index b666f1bad451..000000000000 --- a/trunk/arch/arm26/lib/lshrdi3.c +++ /dev/null @@ -1,61 +0,0 @@ -/* More subroutines needed by GCC output code on some machines. */ -/* Compile this one with gcc. */ -/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* As a special exception, if you link this library with other files, - some of which are compiled with GCC, to produce an executable, - this library does not by itself cause the resulting executable - to be covered by the GNU General Public License. - This exception does not however invalidate any other reasons why - the executable file might be covered by the GNU General Public License. - */ -/* support functions required by the kernel. based on code from gcc-2.95.3 */ -/* I Molton 29/07/01 */ - -#include "gcclib.h" - -DItype -__lshrdi3 (DItype u, word_type b) -{ - DIunion w; - word_type bm; - DIunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof (SItype) * BITS_PER_UNIT) - b; - if (bm <= 0) - { - w.s.high = 0; - w.s.low = (USItype)uu.s.high >> -bm; - } - else - { - USItype carries = (USItype)uu.s.high << bm; - w.s.high = (USItype)uu.s.high >> b; - w.s.low = ((USItype)uu.s.low >> b) | carries; - } - - return w.ll; -} - diff --git a/trunk/arch/arm26/lib/memchr.S b/trunk/arch/arm26/lib/memchr.S deleted file mode 100644 index 34e7c14c08ad..000000000000 --- a/trunk/arch/arm26/lib/memchr.S +++ /dev/null @@ -1,25 +0,0 @@ -/* - * linux/arch/arm26/lib/memchr.S - * - * Copyright (C) 1995-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * ASM optimised string functions - */ -#include -#include - - .text - .align 5 -ENTRY(memchr) -1: subs r2, r2, #1 - bmi 2f - ldrb r3, [r0], #1 - teq r3, r1 - bne 1b - sub r0, r0, #1 -2: movne r0, #0 - RETINSTR(mov,pc,lr) diff --git a/trunk/arch/arm26/lib/memcpy.S b/trunk/arch/arm26/lib/memcpy.S deleted file mode 100644 index 3f719e412069..000000000000 --- a/trunk/arch/arm26/lib/memcpy.S +++ /dev/null @@ -1,318 +0,0 @@ -/* - * linux/arch/arm26/lib/memcpy.S - * - * Copyright (C) 1995-1999 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * ASM optimised string functions - */ -#include -#include - - .text - -#define ENTER \ - mov ip,sp ;\ - stmfd sp!,{r4-r9,fp,ip,lr,pc} ;\ - sub fp,ip,#4 - -#define EXIT \ - LOADREGS(ea, fp, {r4 - r9, fp, sp, pc}) - -#define EXITEQ \ - LOADREGS(eqea, fp, {r4 - r9, fp, sp, pc}) - -/* - * Prototype: void memcpy(void *to,const void *from,unsigned long n); - * ARM3: cant use memcopy here!!! - */ -ENTRY(memcpy) -ENTRY(memmove) - ENTER - cmp r1, r0 - bcc 19f - subs r2, r2, #4 - blt 6f - ands ip, r0, #3 - bne 7f - ands ip, r1, #3 - bne 8f - -1: subs r2, r2, #8 - blt 5f - subs r2, r2, #0x14 - blt 3f -2: ldmia r1!,{r3 - r9, ip} - stmia r0!,{r3 - r9, ip} - subs r2, r2, #32 - bge 2b - cmn r2, #16 - ldmgeia r1!, {r3 - r6} - stmgeia r0!, {r3 - r6} - subge r2, r2, #0x10 -3: adds r2, r2, #0x14 -4: ldmgeia r1!, {r3 - r5} - stmgeia r0!, {r3 - r5} - subges r2, r2, #12 - bge 4b -5: adds r2, r2, #8 - blt 6f - subs r2, r2, #4 - ldrlt r3, [r1], #4 - ldmgeia r1!, {r4, r5} - strlt r3, [r0], #4 - stmgeia r0!, {r4, r5} - subge r2, r2, #4 - -6: adds r2, r2, #4 - EXITEQ - cmp r2, #2 - ldrb r3, [r1], #1 - ldrgeb r4, [r1], #1 - ldrgtb r5, [r1], #1 - strb r3, [r0], #1 - strgeb r4, [r0], #1 - strgtb r5, [r0], #1 - EXIT - -7: rsb ip, ip, #4 - cmp ip, #2 - ldrb r3, [r1], #1 - ldrgeb r4, [r1], #1 - ldrgtb r5, [r1], #1 - strb r3, [r0], #1 - strgeb r4, [r0], #1 - strgtb r5, [r0], #1 - subs r2, r2, ip - blt 6b - ands ip, r1, #3 - beq 1b - -8: bic r1, r1, #3 - ldr r7, [r1], #4 - cmp ip, #2 - bgt 15f - beq 11f - cmp r2, #12 - blt 10f - sub r2, r2, #12 -9: mov r3, r7, pull #8 - ldmia r1!, {r4 - r7} - orr r3, r3, r4, push #24 - mov r4, r4, pull #8 - orr r4, r4, r5, push #24 - mov r5, r5, pull #8 - orr r5, r5, r6, push #24 - mov r6, r6, pull #8 - orr r6, r6, r7, push #24 - stmia r0!, {r3 - r6} - subs r2, r2, #16 - bge 9b - adds r2, r2, #12 - blt 100f -10: mov r3, r7, pull #8 - ldr r7, [r1], #4 - subs r2, r2, #4 - orr r3, r3, r7, push #24 - str r3, [r0], #4 - bge 10b -100: sub r1, r1, #3 - b 6b - -11: cmp r2, #12 - blt 13f /* */ - sub r2, r2, #12 -12: mov r3, r7, pull #16 - ldmia r1!, {r4 - r7} - orr r3, r3, r4, push #16 - mov r4, r4, pull #16 - orr r4, r4, r5, push #16 - mov r5, r5, pull #16 - orr r5, r5, r6, push #16 - mov r6, r6, pull #16 - orr r6, r6, r7, push #16 - stmia r0!, {r3 - r6} - subs r2, r2, #16 - bge 12b - adds r2, r2, #12 - blt 14f -13: mov r3, r7, pull #16 - ldr r7, [r1], #4 - subs r2, r2, #4 - orr r3, r3, r7, push #16 - str r3, [r0], #4 - bge 13b -14: sub r1, r1, #2 - b 6b - -15: cmp r2, #12 - blt 17f - sub r2, r2, #12 -16: mov r3, r7, pull #24 - ldmia r1!, {r4 - r7} - orr r3, r3, r4, push #8 - mov r4, r4, pull #24 - orr r4, r4, r5, push #8 - mov r5, r5, pull #24 - orr r5, r5, r6, push #8 - mov r6, r6, pull #24 - orr r6, r6, r7, push #8 - stmia r0!, {r3 - r6} - subs r2, r2, #16 - bge 16b - adds r2, r2, #12 - blt 18f -17: mov r3, r7, pull #24 - ldr r7, [r1], #4 - subs r2, r2, #4 - orr r3, r3, r7, push #8 - str r3, [r0], #4 - bge 17b -18: sub r1, r1, #1 - b 6b - - -19: add r1, r1, r2 - add r0, r0, r2 - subs r2, r2, #4 - blt 24f - ands ip, r0, #3 - bne 25f - ands ip, r1, #3 - bne 26f - -20: subs r2, r2, #8 - blt 23f - subs r2, r2, #0x14 - blt 22f -21: ldmdb r1!, {r3 - r9, ip} - stmdb r0!, {r3 - r9, ip} - subs r2, r2, #32 - bge 21b -22: cmn r2, #16 - ldmgedb r1!, {r3 - r6} - stmgedb r0!, {r3 - r6} - subge r2, r2, #16 - adds r2, r2, #20 - ldmgedb r1!, {r3 - r5} - stmgedb r0!, {r3 - r5} - subge r2, r2, #12 -23: adds r2, r2, #8 - blt 24f - subs r2, r2, #4 - ldrlt r3, [r1, #-4]! - ldmgedb r1!, {r4, r5} - strlt r3, [r0, #-4]! - stmgedb r0!, {r4, r5} - subge r2, r2, #4 - -24: adds r2, r2, #4 - EXITEQ - cmp r2, #2 - ldrb r3, [r1, #-1]! - ldrgeb r4, [r1, #-1]! - ldrgtb r5, [r1, #-1]! - strb r3, [r0, #-1]! - strgeb r4, [r0, #-1]! - strgtb r5, [r0, #-1]! - EXIT - -25: cmp ip, #2 - ldrb r3, [r1, #-1]! - ldrgeb r4, [r1, #-1]! - ldrgtb r5, [r1, #-1]! - strb r3, [r0, #-1]! - strgeb r4, [r0, #-1]! - strgtb r5, [r0, #-1]! - subs r2, r2, ip - blt 24b - ands ip, r1, #3 - beq 20b - -26: bic r1, r1, #3 - ldr r3, [r1], #0 - cmp ip, #2 - blt 34f - beq 30f - cmp r2, #12 - blt 28f - sub r2, r2, #12 -27: mov r7, r3, push #8 - ldmdb r1!, {r3, r4, r5, r6} - orr r7, r7, r6, pull #24 - mov r6, r6, push #8 - orr r6, r6, r5, pull #24 - mov r5, r5, push #8 - orr r5, r5, r4, pull #24 - mov r4, r4, push #8 - orr r4, r4, r3, pull #24 - stmdb r0!, {r4, r5, r6, r7} - subs r2, r2, #16 - bge 27b - adds r2, r2, #12 - blt 29f -28: mov ip, r3, push #8 - ldr r3, [r1, #-4]! - subs r2, r2, #4 - orr ip, ip, r3, pull #24 - str ip, [r0, #-4]! - bge 28b -29: add r1, r1, #3 - b 24b - -30: cmp r2, #12 - blt 32f - sub r2, r2, #12 -31: mov r7, r3, push #16 - ldmdb r1!, {r3, r4, r5, r6} - orr r7, r7, r6, pull #16 - mov r6, r6, push #16 - orr r6, r6, r5, pull #16 - mov r5, r5, push #16 - orr r5, r5, r4, pull #16 - mov r4, r4, push #16 - orr r4, r4, r3, pull #16 - stmdb r0!, {r4, r5, r6, r7} - subs r2, r2, #16 - bge 31b - adds r2, r2, #12 - blt 33f -32: mov ip, r3, push #16 - ldr r3, [r1, #-4]! - subs r2, r2, #4 - orr ip, ip, r3, pull #16 - str ip, [r0, #-4]! - bge 32b -33: add r1, r1, #2 - b 24b - -34: cmp r2, #12 - blt 36f - sub r2, r2, #12 -35: mov r7, r3, push #24 - ldmdb r1!, {r3, r4, r5, r6} - orr r7, r7, r6, pull #8 - mov r6, r6, push #24 - orr r6, r6, r5, pull #8 - mov r5, r5, push #24 - orr r5, r5, r4, pull #8 - mov r4, r4, push #24 - orr r4, r4, r3, pull #8 - stmdb r0!, {r4, r5, r6, r7} - subs r2, r2, #16 - bge 35b - adds r2, r2, #12 - blt 37f -36: mov ip, r3, push #24 - ldr r3, [r1, #-4]! - subs r2, r2, #4 - orr ip, ip, r3, pull #8 - str ip, [r0, #-4]! - bge 36b -37: add r1, r1, #1 - b 24b - - .align diff --git a/trunk/arch/arm26/lib/memset.S b/trunk/arch/arm26/lib/memset.S deleted file mode 100644 index aedec10b58f5..000000000000 --- a/trunk/arch/arm26/lib/memset.S +++ /dev/null @@ -1,80 +0,0 @@ -/* - * linux/arch/arm26/lib/memset.S - * - * Copyright (C) 1995-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * ASM optimised string functions - */ -#include -#include - - .text - .align 5 - .word 0 - -1: subs r2, r2, #4 @ 1 do we have enough - blt 5f @ 1 bytes to align with? - cmp r3, #2 @ 1 - strltb r1, [r0], #1 @ 1 - strleb r1, [r0], #1 @ 1 - strb r1, [r0], #1 @ 1 - add r2, r2, r3 @ 1 (r2 = r2 - (4 - r3)) -/* - * The pointer is now aligned and the length is adjusted. Try doing the - * memzero again. - */ - -ENTRY(memset) - ands r3, r0, #3 @ 1 unaligned? - bne 1b @ 1 -/* - * we know that the pointer in r0 is aligned to a word boundary. - */ - orr r1, r1, r1, lsl #8 - orr r1, r1, r1, lsl #16 - mov r3, r1 - cmp r2, #16 - blt 4f -/* - * We need an extra register for this loop - save the return address and - * use the LR - */ - str lr, [sp, #-4]! - mov ip, r1 - mov lr, r1 - -2: subs r2, r2, #64 - stmgeia r0!, {r1, r3, ip, lr} @ 64 bytes at a time. - stmgeia r0!, {r1, r3, ip, lr} - stmgeia r0!, {r1, r3, ip, lr} - stmgeia r0!, {r1, r3, ip, lr} - bgt 2b - LOADREGS(eqfd, sp!, {pc}) @ Now <64 bytes to go. -/* - * No need to correct the count; we're only testing bits from now on - */ - tst r2, #32 - stmneia r0!, {r1, r3, ip, lr} - stmneia r0!, {r1, r3, ip, lr} - tst r2, #16 - stmneia r0!, {r1, r3, ip, lr} - ldr lr, [sp], #4 - -4: tst r2, #8 - stmneia r0!, {r1, r3} - tst r2, #4 - strne r1, [r0], #4 -/* - * When we get here, we've got less than 4 bytes to zero. We - * may have an unaligned pointer as well. - */ -5: tst r2, #2 - strneb r1, [r0], #1 - strneb r1, [r0], #1 - tst r2, #1 - strneb r1, [r0], #1 - RETINSTR(mov,pc,lr) diff --git a/trunk/arch/arm26/lib/memzero.S b/trunk/arch/arm26/lib/memzero.S deleted file mode 100644 index cc5bf6860061..000000000000 --- a/trunk/arch/arm26/lib/memzero.S +++ /dev/null @@ -1,80 +0,0 @@ -/* - * linux/arch/arm26/lib/memzero.S - * - * Copyright (C) 1995-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include - - .text - .align 5 - .word 0 -/* - * Align the pointer in r0. r3 contains the number of bytes that we are - * mis-aligned by, and r1 is the number of bytes. If r1 < 4, then we - * don't bother; we use byte stores instead. - */ -1: subs r1, r1, #4 @ 1 do we have enough - blt 5f @ 1 bytes to align with? - cmp r3, #2 @ 1 - strltb r2, [r0], #1 @ 1 - strleb r2, [r0], #1 @ 1 - strb r2, [r0], #1 @ 1 - add r1, r1, r3 @ 1 (r1 = r1 - (4 - r3)) -/* - * The pointer is now aligned and the length is adjusted. Try doing the - * memzero again. - */ - -ENTRY(__memzero) - mov r2, #0 @ 1 - ands r3, r0, #3 @ 1 unaligned? - bne 1b @ 1 -/* - * r3 = 0, and we know that the pointer in r0 is aligned to a word boundary. - */ - cmp r1, #16 @ 1 we can skip this chunk if we - blt 4f @ 1 have < 16 bytes -/* - * We need an extra register for this loop - save the return address and - * use the LR - */ - str lr, [sp, #-4]! @ 1 - mov ip, r2 @ 1 - mov lr, r2 @ 1 - -3: subs r1, r1, #64 @ 1 write 32 bytes out per loop - stmgeia r0!, {r2, r3, ip, lr} @ 4 - stmgeia r0!, {r2, r3, ip, lr} @ 4 - stmgeia r0!, {r2, r3, ip, lr} @ 4 - stmgeia r0!, {r2, r3, ip, lr} @ 4 - bgt 3b @ 1 - LOADREGS(eqfd, sp!, {pc}) @ 1/2 quick exit -/* - * No need to correct the count; we're only testing bits from now on - */ - tst r1, #32 @ 1 - stmneia r0!, {r2, r3, ip, lr} @ 4 - stmneia r0!, {r2, r3, ip, lr} @ 4 - tst r1, #16 @ 1 16 bytes or more? - stmneia r0!, {r2, r3, ip, lr} @ 4 - ldr lr, [sp], #4 @ 1 - -4: tst r1, #8 @ 1 8 bytes or more? - stmneia r0!, {r2, r3} @ 2 - tst r1, #4 @ 1 4 bytes or more? - strne r2, [r0], #4 @ 1 -/* - * When we get here, we've got less than 4 bytes to zero. We - * may have an unaligned pointer as well. - */ -5: tst r1, #2 @ 1 2 bytes or more? - strneb r2, [r0], #1 @ 1 - strneb r2, [r0], #1 @ 1 - tst r1, #1 @ 1 a byte left over - strneb r2, [r0], #1 @ 1 - RETINSTR(mov,pc,lr) @ 1 diff --git a/trunk/arch/arm26/lib/muldi3.c b/trunk/arch/arm26/lib/muldi3.c deleted file mode 100644 index 44d611b1cfdb..000000000000 --- a/trunk/arch/arm26/lib/muldi3.c +++ /dev/null @@ -1,77 +0,0 @@ -/* More subroutines needed by GCC output code on some machines. */ -/* Compile this one with gcc. */ -/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* As a special exception, if you link this library with other files, - some of which are compiled with GCC, to produce an executable, - this library does not by itself cause the resulting executable - to be covered by the GNU General Public License. - This exception does not however invalidate any other reasons why - the executable file might be covered by the GNU General Public License. - */ -/* support functions required by the kernel. based on code from gcc-2.95.3 */ -/* I Molton 29/07/01 */ - -#include "gcclib.h" - -#define umul_ppmm(xh, xl, a, b) \ -{register USItype __t0, __t1, __t2; \ - __asm__ ("%@ Inlined umul_ppmm \n\ - mov %2, %5, lsr #16 \n\ - mov %0, %6, lsr #16 \n\ - bic %3, %5, %2, lsl #16 \n\ - bic %4, %6, %0, lsl #16 \n\ - mul %1, %3, %4 \n\ - mul %4, %2, %4 \n\ - mul %3, %0, %3 \n\ - mul %0, %2, %0 \n\ - adds %3, %4, %3 \n\ - addcs %0, %0, #65536 \n\ - adds %1, %1, %3, lsl #16 \n\ - adc %0, %0, %3, lsr #16" \ - : "=&r" ((USItype) (xh)), \ - "=r" ((USItype) (xl)), \ - "=&r" (__t0), "=&r" (__t1), "=r" (__t2) \ - : "r" ((USItype) (a)), \ - "r" ((USItype) (b)));} - - -#define __umulsidi3(u, v) \ - ({DIunion __w; \ - umul_ppmm (__w.s.high, __w.s.low, u, v); \ - __w.ll; }) - - -DItype -__muldi3 (DItype u, DItype v) -{ - DIunion w; - DIunion uu, vv; - - uu.ll = u, - vv.ll = v; - - w.ll = __umulsidi3 (uu.s.low, vv.s.low); - w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high - + (USItype) uu.s.high * (USItype) vv.s.low); - - return w.ll; -} - diff --git a/trunk/arch/arm26/lib/putuser.S b/trunk/arch/arm26/lib/putuser.S deleted file mode 100644 index 46c7f15f9f2d..000000000000 --- a/trunk/arch/arm26/lib/putuser.S +++ /dev/null @@ -1,109 +0,0 @@ -/* - * linux/arch/arm26/lib/putuser.S - * - * Copyright (C) 2001 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Idea from x86 version, (C) Copyright 1998 Linus Torvalds - * - * These functions have a non-standard call interface to make - * them more efficient, especially as they return an error - * value in addition to the "real" return value. - * - * __put_user_X - * - * Inputs: r0 contains the address - * r1, r2 contains the value - * Outputs: r0 is the error code - * lr corrupted - * - * No other registers must be altered. (see include/asm-arm/uaccess.h - * for specific ASM register usage). - * - * Note that ADDR_LIMIT is either 0 or 0xc0000000 - * Note also that it is intended that __put_user_bad is not global. - */ -#include -#include -#include - - .global __put_user_1 -__put_user_1: - bic r2, sp, #0x1f00 - bic r2, r2, #0x00ff - str lr, [sp, #-4]! - ldr r2, [r2, #TI_ADDR_LIMIT] - sub r2, r2, #1 - cmp r0, r2 - bge __put_user_bad -1: cmp r0, #0x02000000 - strlsbt r1, [r0] - strgeb r1, [r0] - mov r0, #0 - ldmfd sp!, {pc}^ - - .global __put_user_2 -__put_user_2: - bic r2, sp, #0x1f00 - bic r2, r2, #0x00ff - str lr, [sp, #-4]! - ldr r2, [r2, #TI_ADDR_LIMIT] - sub r2, r2, #2 - cmp r0, r2 - bge __put_user_bad -2: cmp r0, #0x02000000 - strlsbt r1, [r0], #1 - strgeb r1, [r0], #1 - mov r1, r1, lsr #8 -3: strlsbt r1, [r0] - strgeb r1, [r0] - mov r0, #0 - ldmfd sp!, {pc}^ - - .global __put_user_4 -__put_user_4: - bic r2, sp, #0x1f00 - bic r2, r2, #0x00ff - str lr, [sp, #-4]! - ldr r2, [r2, #TI_ADDR_LIMIT] - sub r2, r2, #4 - cmp r0, r2 -4: bge __put_user_bad - cmp r0, #0x02000000 - strlst r1, [r0] - strge r1, [r0] - mov r0, #0 - ldmfd sp!, {pc}^ - - .global __put_user_8 -__put_user_8: - bic ip, sp, #0x1f00 - bic ip, ip, #0x00ff - str lr, [sp, #-4]! - ldr ip, [ip, #TI_ADDR_LIMIT] - sub ip, ip, #8 - cmp r0, ip - bge __put_user_bad - cmp r0, #0x02000000 -5: strlst r1, [r0], #4 -6: strlst r2, [r0] - strge r1, [r0], #4 - strge r2, [r0] - mov r0, #0 - ldmfd sp!, {pc}^ - -__put_user_bad: - mov r0, #-EFAULT - mov pc, lr - -.section __ex_table, "a" - .long 1b, __put_user_bad - .long 2b, __put_user_bad - .long 3b, __put_user_bad - .long 4b, __put_user_bad - .long 5b, __put_user_bad - .long 6b, __put_user_bad -.previous diff --git a/trunk/arch/arm26/lib/setbit.S b/trunk/arch/arm26/lib/setbit.S deleted file mode 100644 index e180c1a1b2f1..000000000000 --- a/trunk/arch/arm26/lib/setbit.S +++ /dev/null @@ -1,29 +0,0 @@ -/* - * linux/arch/arm26/lib/setbit.S - * - * Copyright (C) 1995-1996 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include - .text - -/* - * Purpose : Function to set a bit - * Prototype: int set_bit(int bit, void *addr) - */ -ENTRY(_set_bit_be) - eor r0, r0, #0x18 @ big endian byte ordering -ENTRY(_set_bit_le) - and r2, r0, #7 - mov r3, #1 - mov r3, r3, lsl r2 - save_and_disable_irqs ip, r2 - ldrb r2, [r1, r0, lsr #3] - orr r2, r2, r3 - strb r2, [r1, r0, lsr #3] - restore_irqs ip - RETINSTR(mov,pc,lr) diff --git a/trunk/arch/arm26/lib/strchr.S b/trunk/arch/arm26/lib/strchr.S deleted file mode 100644 index ecfff21aa7c7..000000000000 --- a/trunk/arch/arm26/lib/strchr.S +++ /dev/null @@ -1,25 +0,0 @@ -/* - * linux/arch/arm26/lib/strchr.S - * - * Copyright (C) 1995-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * ASM optimised string functions - */ -#include -#include - - .text - .align 5 -ENTRY(strchr) -1: ldrb r2, [r0], #1 - teq r2, r1 - teqne r2, #0 - bne 1b - teq r2, #0 - moveq r0, #0 - subne r0, r0, #1 - RETINSTR(mov,pc,lr) diff --git a/trunk/arch/arm26/lib/strrchr.S b/trunk/arch/arm26/lib/strrchr.S deleted file mode 100644 index db43b28e78dc..000000000000 --- a/trunk/arch/arm26/lib/strrchr.S +++ /dev/null @@ -1,25 +0,0 @@ -/* - * linux/arch/arm26/lib/strrchr.S - * - * Copyright (C) 1995-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * ASM optimised string functions - */ -#include -#include - - .text - .align 5 -ENTRY(strrchr) - mov r3, #0 -1: ldrb r2, [r0], #1 - teq r2, r1 - subeq r3, r0, #1 - teq r2, #0 - bne 1b - mov r0, r3 - RETINSTR(mov,pc,lr) diff --git a/trunk/arch/arm26/lib/testchangebit.S b/trunk/arch/arm26/lib/testchangebit.S deleted file mode 100644 index 17049a2d93a4..000000000000 --- a/trunk/arch/arm26/lib/testchangebit.S +++ /dev/null @@ -1,29 +0,0 @@ -/* - * linux/arch/arm26/lib/testchangebit.S - * - * Copyright (C) 1995-1996 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include - .text - -ENTRY(_test_and_change_bit_be) - eor r0, r0, #0x18 @ big endian byte ordering -ENTRY(_test_and_change_bit_le) - add r1, r1, r0, lsr #3 - and r3, r0, #7 - mov r0, #1 - save_and_disable_irqs ip, r2 - ldrb r2, [r1] - tst r2, r0, lsl r3 - eor r2, r2, r0, lsl r3 - strb r2, [r1] - restore_irqs ip - moveq r0, #0 - RETINSTR(mov,pc,lr) - - diff --git a/trunk/arch/arm26/lib/testclearbit.S b/trunk/arch/arm26/lib/testclearbit.S deleted file mode 100644 index 2506bd743ab4..000000000000 --- a/trunk/arch/arm26/lib/testclearbit.S +++ /dev/null @@ -1,29 +0,0 @@ -/* - * linux/arch/arm26/lib/testclearbit.S - * - * Copyright (C) 1995-1996 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include - .text - -ENTRY(_test_and_clear_bit_be) - eor r0, r0, #0x18 @ big endian byte ordering -ENTRY(_test_and_clear_bit_le) - add r1, r1, r0, lsr #3 @ Get byte offset - and r3, r0, #7 @ Get bit offset - mov r0, #1 - save_and_disable_irqs ip, r2 - ldrb r2, [r1] - tst r2, r0, lsl r3 - bic r2, r2, r0, lsl r3 - strb r2, [r1] - restore_irqs ip - moveq r0, #0 - RETINSTR(mov,pc,lr) - - diff --git a/trunk/arch/arm26/lib/testsetbit.S b/trunk/arch/arm26/lib/testsetbit.S deleted file mode 100644 index f827de64b22d..000000000000 --- a/trunk/arch/arm26/lib/testsetbit.S +++ /dev/null @@ -1,29 +0,0 @@ -/* - * linux/arch/arm26/lib/testsetbit.S - * - * Copyright (C) 1995-1996 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include - .text - -ENTRY(_test_and_set_bit_be) - eor r0, r0, #0x18 @ big endian byte ordering -ENTRY(_test_and_set_bit_le) - add r1, r1, r0, lsr #3 @ Get byte offset - and r3, r0, #7 @ Get bit offset - mov r0, #1 - save_and_disable_irqs ip, r2 - ldrb r2, [r1] - tst r2, r0, lsl r3 - orr r2, r2, r0, lsl r3 - strb r2, [r1] - restore_irqs ip - moveq r0, #0 - RETINSTR(mov,pc,lr) - - diff --git a/trunk/arch/arm26/lib/uaccess-kernel.S b/trunk/arch/arm26/lib/uaccess-kernel.S deleted file mode 100644 index 3950a1f6bc99..000000000000 --- a/trunk/arch/arm26/lib/uaccess-kernel.S +++ /dev/null @@ -1,173 +0,0 @@ -/* - * linux/arch/arm26/lib/uaccess-kernel.S - * - * Copyright (C) 1998 Russell King - * - * Note! Some code fragments found in here have a special calling - * convention - they are not APCS compliant! - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include - - .text - -//FIXME - surely this can be done in C not asm, removing the problem of keeping C and asm in sync? (this is a struct uaccess_t) - - .globl uaccess_kernel -uaccess_kernel: - .word uaccess_kernel_put_byte - .word uaccess_kernel_get_byte - .word uaccess_kernel_put_half - .word uaccess_kernel_get_half - .word uaccess_kernel_put_word - .word uaccess_kernel_get_word - .word uaccess_kernel_put_dword - .word uaccess_kernel_copy - .word uaccess_kernel_copy - .word uaccess_kernel_clear - .word uaccess_kernel_strncpy - .word uaccess_kernel_strnlen - -@ In : r0 = x, r1 = addr, r2 = error -@ Out: r2 = error -uaccess_kernel_put_byte: - stmfd sp!, {lr} - strb r0, [r1] - ldmfd sp!, {pc}^ - -@ In : r0 = x, r1 = addr, r2 = error -@ Out: r2 = error -uaccess_kernel_put_half: - stmfd sp!, {lr} - strb r0, [r1] - mov r0, r0, lsr #8 - strb r0, [r1, #1] - ldmfd sp!, {pc}^ - -@ In : r0 = x, r1 = addr, r2 = error -@ Out: r2 = error -uaccess_kernel_put_word: - stmfd sp!, {lr} - str r0, [r1] - ldmfd sp!, {pc}^ - -@ In : r0 = x, r1 = addr, r2 = error -@ Out: r2 = error -uaccess_kernel_put_dword: - stmfd sp!, {lr} - str r0, [r1], #4 - str r0, [r1], #0 - ldmfd sp!, {pc}^ - -@ In : r0 = addr, r1 = error -@ Out: r0 = x, r1 = error -uaccess_kernel_get_byte: - stmfd sp!, {lr} - ldrb r0, [r0] - ldmfd sp!, {pc}^ - -@ In : r0 = addr, r1 = error -@ Out: r0 = x, r1 = error -uaccess_kernel_get_half: - stmfd sp!, {lr} - ldr r0, [r0] - mov r0, r0, lsl #16 - mov r0, r0, lsr #16 - ldmfd sp!, {pc}^ - -@ In : r0 = addr, r1 = error -@ Out: r0 = x, r1 = error -uaccess_kernel_get_word: - stmfd sp!, {lr} - ldr r0, [r0] - ldmfd sp!, {pc}^ - - -/* Prototype: int uaccess_kernel_copy(void *to, const char *from, size_t n) - * Purpose : copy a block to kernel memory from kernel memory - * Params : to - kernel memory - * : from - kernel memory - * : n - number of bytes to copy - * Returns : Number of bytes NOT copied. - */ -uaccess_kernel_copy: - stmfd sp!, {lr} - bl memcpy - mov r0, #0 - ldmfd sp!, {pc}^ - -/* Prototype: int uaccess_kernel_clear(void *addr, size_t sz) - * Purpose : clear some kernel memory - * Params : addr - kernel memory address to clear - * : sz - number of bytes to clear - * Returns : number of bytes NOT cleared - */ -uaccess_kernel_clear: - stmfd sp!, {lr} - mov r2, #0 - cmp r1, #4 - blt 2f - ands ip, r0, #3 - beq 1f - cmp ip, #1 - strb r2, [r0], #1 - strleb r2, [r0], #1 - strltb r2, [r0], #1 - rsb ip, ip, #4 - sub r1, r1, ip @ 7 6 5 4 3 2 1 -1: subs r1, r1, #8 @ -1 -2 -3 -4 -5 -6 -7 - bmi 2f - str r2, [r0], #4 - str r2, [r0], #4 - b 1b -2: adds r1, r1, #4 @ 3 2 1 0 -1 -2 -3 - strpl r2, [r0], #4 - tst r1, #2 @ 1x 1x 0x 0x 1x 1x 0x - strneb r2, [r0], #1 - strneb r2, [r0], #1 - tst r1, #1 @ x1 x0 x1 x0 x1 x0 x1 - strneb r2, [r0], #1 - mov r0, #0 - ldmfd sp!, {pc}^ - -/* Prototype: size_t uaccess_kernel_strncpy(char *dst, char *src, size_t len) - * Purpose : copy a string from kernel memory to kernel memory - * Params : dst - kernel memory destination - * : src - kernel memory source - * : len - maximum length of string - * Returns : number of characters copied - */ -uaccess_kernel_strncpy: - stmfd sp!, {lr} - mov ip, r2 -1: subs r2, r2, #1 - bmi 2f - ldrb r3, [r1], #1 - strb r3, [r0], #1 - teq r3, #0 - bne 1b -2: subs r0, ip, r2 - ldmfd sp!, {pc}^ - -/* Prototype: int uaccess_kernel_strlen(char *str, long n) - * Purpose : get length of a string in kernel memory - * Params : str - address of string in kernel memory - * Returns : length of string *including terminator*, - * or zero on exception, or n + 1 if too long - */ -uaccess_kernel_strnlen: - stmfd sp!, {lr} - mov r2, r0 -1: ldrb r1, [r0], #1 - teq r1, #0 - beq 2f - subs r1, r1, #1 - bne 1b - add r0, r0, #1 -2: sub r0, r0, r2 - ldmfd sp!, {pc}^ - diff --git a/trunk/arch/arm26/lib/uaccess-user.S b/trunk/arch/arm26/lib/uaccess-user.S deleted file mode 100644 index 130b8f28610a..000000000000 --- a/trunk/arch/arm26/lib/uaccess-user.S +++ /dev/null @@ -1,718 +0,0 @@ -/* - * linux/arch/arm26/lib/uaccess-user.S - * - * Copyright (C) 1995, 1996,1997,1998 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Routines to block copy data to/from user memory - * These are highly optimised both for the 4k page size - * and for various alignments. - */ -#include -#include -#include -#include - - .text - -//FIXME - surely this can be done in C not asm, removing the problem of keeping C and asm in sync? (this is a struct uaccess_t) - .globl uaccess_user -uaccess_user: - .word uaccess_user_put_byte - .word uaccess_user_get_byte - .word uaccess_user_put_half - .word uaccess_user_get_half - .word uaccess_user_put_word - .word uaccess_user_get_word - .word uaccess_user_put_dword - .word uaccess_user_copy_from_user - .word uaccess_user_copy_to_user - .word uaccess_user_clear_user - .word uaccess_user_strncpy_from_user - .word uaccess_user_strnlen_user - - -@ In : r0 = x, r1 = addr, r2 = error -@ Out: r2 = error -uaccess_user_put_byte: - stmfd sp!, {lr} -USER( strbt r0, [r1]) - ldmfd sp!, {pc}^ - -@ In : r0 = x, r1 = addr, r2 = error -@ Out: r2 = error -uaccess_user_put_half: - stmfd sp!, {lr} -USER( strbt r0, [r1], #1) - mov r0, r0, lsr #8 -USER( strbt r0, [r1]) - ldmfd sp!, {pc}^ - -@ In : r0 = x, r1 = addr, r2 = error -@ Out: r2 = error -uaccess_user_put_word: - stmfd sp!, {lr} -USER( strt r0, [r1]) - ldmfd sp!, {pc}^ - -@ In : r0 = x, r1 = addr, r2 = error -@ Out: r2 = error -uaccess_user_put_dword: - stmfd sp!, {lr} -USER( strt r0, [r1], #4) -USER( strt r0, [r1], #0) - ldmfd sp!, {pc}^ - -9001: mov r2, #-EFAULT - ldmfd sp!, {pc}^ - - -@ In : r0 = addr, r1 = error -@ Out: r0 = x, r1 = error -uaccess_user_get_byte: - stmfd sp!, {lr} -USER( ldrbt r0, [r0]) - ldmfd sp!, {pc}^ - -@ In : r0 = addr, r1 = error -@ Out: r0 = x, r1 = error -uaccess_user_get_half: - stmfd sp!, {lr} -USER( ldrt r0, [r0]) - mov r0, r0, lsl #16 - mov r0, r0, lsr #16 - ldmfd sp!, {pc}^ - -@ In : r0 = addr, r1 = error -@ Out: r0 = x, r1 = error -uaccess_user_get_word: - stmfd sp!, {lr} -USER( ldrt r0, [r0]) - ldmfd sp!, {pc}^ - -9001: mov r1, #-EFAULT - ldmfd sp!, {pc}^ - -/* Prototype: int uaccess_user_copy_to_user(void *to, const char *from, size_t n) - * Purpose : copy a block to user memory from kernel memory - * Params : to - user memory - * : from - kernel memory - * : n - number of bytes to copy - * Returns : Number of bytes NOT copied. - */ - -.c2u_dest_not_aligned: - rsb ip, ip, #4 - cmp ip, #2 - ldrb r3, [r1], #1 -USER( strbt r3, [r0], #1) @ May fault - ldrgeb r3, [r1], #1 -USER( strgebt r3, [r0], #1) @ May fault - ldrgtb r3, [r1], #1 -USER( strgtbt r3, [r0], #1) @ May fault - sub r2, r2, ip - b .c2u_dest_aligned - -ENTRY(uaccess_user_copy_to_user) - stmfd sp!, {r2, r4 - r7, lr} - cmp r2, #4 - blt .c2u_not_enough - ands ip, r0, #3 - bne .c2u_dest_not_aligned -.c2u_dest_aligned: - - ands ip, r1, #3 - bne .c2u_src_not_aligned -/* - * Seeing as there has to be at least 8 bytes to copy, we can - * copy one word, and force a user-mode page fault... - */ - -.c2u_0fupi: subs r2, r2, #4 - addmi ip, r2, #4 - bmi .c2u_0nowords - ldr r3, [r1], #4 -USER( strt r3, [r0], #4) @ May fault - mov ip, r0, lsl #32 - PAGE_SHIFT @ On each page, use a ld/st??t instruction - rsb ip, ip, #0 - movs ip, ip, lsr #32 - PAGE_SHIFT - beq .c2u_0fupi -/* - * ip = max no. of bytes to copy before needing another "strt" insn - */ - cmp r2, ip - movlt ip, r2 - sub r2, r2, ip - subs ip, ip, #32 - blt .c2u_0rem8lp - -.c2u_0cpy8lp: ldmia r1!, {r3 - r6} - stmia r0!, {r3 - r6} @ Shouldnt fault - ldmia r1!, {r3 - r6} - stmia r0!, {r3 - r6} @ Shouldnt fault - subs ip, ip, #32 - bpl .c2u_0cpy8lp -.c2u_0rem8lp: cmn ip, #16 - ldmgeia r1!, {r3 - r6} - stmgeia r0!, {r3 - r6} @ Shouldnt fault - tst ip, #8 - ldmneia r1!, {r3 - r4} - stmneia r0!, {r3 - r4} @ Shouldnt fault - tst ip, #4 - ldrne r3, [r1], #4 - strnet r3, [r0], #4 @ Shouldnt fault - ands ip, ip, #3 - beq .c2u_0fupi -.c2u_0nowords: teq ip, #0 - beq .c2u_finished -.c2u_nowords: cmp ip, #2 - ldrb r3, [r1], #1 -USER( strbt r3, [r0], #1) @ May fault - ldrgeb r3, [r1], #1 -USER( strgebt r3, [r0], #1) @ May fault - ldrgtb r3, [r1], #1 -USER( strgtbt r3, [r0], #1) @ May fault - b .c2u_finished - -.c2u_not_enough: - movs ip, r2 - bne .c2u_nowords -.c2u_finished: mov r0, #0 - LOADREGS(fd,sp!,{r2, r4 - r7, pc}) - -.c2u_src_not_aligned: - bic r1, r1, #3 - ldr r7, [r1], #4 - cmp ip, #2 - bgt .c2u_3fupi - beq .c2u_2fupi -.c2u_1fupi: subs r2, r2, #4 - addmi ip, r2, #4 - bmi .c2u_1nowords - mov r3, r7, pull #8 - ldr r7, [r1], #4 - orr r3, r3, r7, push #24 -USER( strt r3, [r0], #4) @ May fault - mov ip, r0, lsl #32 - PAGE_SHIFT - rsb ip, ip, #0 - movs ip, ip, lsr #32 - PAGE_SHIFT - beq .c2u_1fupi - cmp r2, ip - movlt ip, r2 - sub r2, r2, ip - subs ip, ip, #16 - blt .c2u_1rem8lp - -.c2u_1cpy8lp: mov r3, r7, pull #8 - ldmia r1!, {r4 - r7} - orr r3, r3, r4, push #24 - mov r4, r4, pull #8 - orr r4, r4, r5, push #24 - mov r5, r5, pull #8 - orr r5, r5, r6, push #24 - mov r6, r6, pull #8 - orr r6, r6, r7, push #24 - stmia r0!, {r3 - r6} @ Shouldnt fault - subs ip, ip, #16 - bpl .c2u_1cpy8lp -.c2u_1rem8lp: tst ip, #8 - movne r3, r7, pull #8 - ldmneia r1!, {r4, r7} - orrne r3, r3, r4, push #24 - movne r4, r4, pull #8 - orrne r4, r4, r7, push #24 - stmneia r0!, {r3 - r4} @ Shouldnt fault - tst ip, #4 - movne r3, r7, pull #8 - ldrne r7, [r1], #4 - orrne r3, r3, r7, push #24 - strnet r3, [r0], #4 @ Shouldnt fault - ands ip, ip, #3 - beq .c2u_1fupi -.c2u_1nowords: mov r3, r7, lsr #byte(1) - teq ip, #0 - beq .c2u_finished - cmp ip, #2 -USER( strbt r3, [r0], #1) @ May fault - movge r3, r7, lsr #byte(2) -USER( strgebt r3, [r0], #1) @ May fault - movgt r3, r7, lsr #byte(3) -USER( strgtbt r3, [r0], #1) @ May fault - b .c2u_finished - -.c2u_2fupi: subs r2, r2, #4 - addmi ip, r2, #4 - bmi .c2u_2nowords - mov r3, r7, pull #16 - ldr r7, [r1], #4 - orr r3, r3, r7, push #16 -USER( strt r3, [r0], #4) @ May fault - mov ip, r0, lsl #32 - PAGE_SHIFT - rsb ip, ip, #0 - movs ip, ip, lsr #32 - PAGE_SHIFT - beq .c2u_2fupi - cmp r2, ip - movlt ip, r2 - sub r2, r2, ip - subs ip, ip, #16 - blt .c2u_2rem8lp - -.c2u_2cpy8lp: mov r3, r7, pull #16 - ldmia r1!, {r4 - r7} - orr r3, r3, r4, push #16 - mov r4, r4, pull #16 - orr r4, r4, r5, push #16 - mov r5, r5, pull #16 - orr r5, r5, r6, push #16 - mov r6, r6, pull #16 - orr r6, r6, r7, push #16 - stmia r0!, {r3 - r6} @ Shouldnt fault - subs ip, ip, #16 - bpl .c2u_2cpy8lp -.c2u_2rem8lp: tst ip, #8 - movne r3, r7, pull #16 - ldmneia r1!, {r4, r7} - orrne r3, r3, r4, push #16 - movne r4, r4, pull #16 - orrne r4, r4, r7, push #16 - stmneia r0!, {r3 - r4} @ Shouldnt fault - tst ip, #4 - movne r3, r7, pull #16 - ldrne r7, [r1], #4 - orrne r3, r3, r7, push #16 - strnet r3, [r0], #4 @ Shouldnt fault - ands ip, ip, #3 - beq .c2u_2fupi -.c2u_2nowords: mov r3, r7, lsr #byte(2) - teq ip, #0 - beq .c2u_finished - cmp ip, #2 -USER( strbt r3, [r0], #1) @ May fault - movge r3, r7, lsr #byte(3) -USER( strgebt r3, [r0], #1) @ May fault - ldrgtb r3, [r1], #0 -USER( strgtbt r3, [r0], #1) @ May fault - b .c2u_finished - -.c2u_3fupi: subs r2, r2, #4 - addmi ip, r2, #4 - bmi .c2u_3nowords - mov r3, r7, pull #24 - ldr r7, [r1], #4 - orr r3, r3, r7, push #8 -USER( strt r3, [r0], #4) @ May fault - mov ip, r0, lsl #32 - PAGE_SHIFT - rsb ip, ip, #0 - movs ip, ip, lsr #32 - PAGE_SHIFT - beq .c2u_3fupi - cmp r2, ip - movlt ip, r2 - sub r2, r2, ip - subs ip, ip, #16 - blt .c2u_3rem8lp - -.c2u_3cpy8lp: mov r3, r7, pull #24 - ldmia r1!, {r4 - r7} - orr r3, r3, r4, push #8 - mov r4, r4, pull #24 - orr r4, r4, r5, push #8 - mov r5, r5, pull #24 - orr r5, r5, r6, push #8 - mov r6, r6, pull #24 - orr r6, r6, r7, push #8 - stmia r0!, {r3 - r6} @ Shouldnt fault - subs ip, ip, #16 - bpl .c2u_3cpy8lp -.c2u_3rem8lp: tst ip, #8 - movne r3, r7, pull #24 - ldmneia r1!, {r4, r7} - orrne r3, r3, r4, push #8 - movne r4, r4, pull #24 - orrne r4, r4, r7, push #8 - stmneia r0!, {r3 - r4} @ Shouldnt fault - tst ip, #4 - movne r3, r7, pull #24 - ldrne r7, [r1], #4 - orrne r3, r3, r7, push #8 - strnet r3, [r0], #4 @ Shouldnt fault - ands ip, ip, #3 - beq .c2u_3fupi -.c2u_3nowords: mov r3, r7, lsr #byte(3) - teq ip, #0 - beq .c2u_finished - cmp ip, #2 -USER( strbt r3, [r0], #1) @ May fault - ldrgeb r3, [r1], #1 -USER( strgebt r3, [r0], #1) @ May fault - ldrgtb r3, [r1], #0 -USER( strgtbt r3, [r0], #1) @ May fault - b .c2u_finished - - .section .fixup,"ax" - .align 0 -9001: LOADREGS(fd,sp!, {r0, r4 - r7, pc}) - .previous - -/* Prototype: unsigned long uaccess_user_copy_from_user(void *to,const void *from,unsigned long n); - * Purpose : copy a block from user memory to kernel memory - * Params : to - kernel memory - * : from - user memory - * : n - number of bytes to copy - * Returns : Number of bytes NOT copied. - */ -.cfu_dest_not_aligned: - rsb ip, ip, #4 - cmp ip, #2 -USER( ldrbt r3, [r1], #1) @ May fault - strb r3, [r0], #1 -USER( ldrgebt r3, [r1], #1) @ May fault - strgeb r3, [r0], #1 -USER( ldrgtbt r3, [r1], #1) @ May fault - strgtb r3, [r0], #1 - sub r2, r2, ip - b .cfu_dest_aligned - -ENTRY(uaccess_user_copy_from_user) - stmfd sp!, {r0, r2, r4 - r7, lr} - cmp r2, #4 - blt .cfu_not_enough - ands ip, r0, #3 - bne .cfu_dest_not_aligned -.cfu_dest_aligned: - ands ip, r1, #3 - bne .cfu_src_not_aligned -/* - * Seeing as there has to be at least 8 bytes to copy, we can - * copy one word, and force a user-mode page fault... - */ - -.cfu_0fupi: subs r2, r2, #4 - addmi ip, r2, #4 - bmi .cfu_0nowords -USER( ldrt r3, [r1], #4) - str r3, [r0], #4 - mov ip, r1, lsl #32 - PAGE_SHIFT @ On each page, use a ld/st??t instruction - rsb ip, ip, #0 - movs ip, ip, lsr #32 - PAGE_SHIFT - beq .cfu_0fupi -/* - * ip = max no. of bytes to copy before needing another "strt" insn - */ - cmp r2, ip - movlt ip, r2 - sub r2, r2, ip - subs ip, ip, #32 - blt .cfu_0rem8lp - -.cfu_0cpy8lp: ldmia r1!, {r3 - r6} @ Shouldnt fault - stmia r0!, {r3 - r6} - ldmia r1!, {r3 - r6} @ Shouldnt fault - stmia r0!, {r3 - r6} - subs ip, ip, #32 - bpl .cfu_0cpy8lp -.cfu_0rem8lp: cmn ip, #16 - ldmgeia r1!, {r3 - r6} @ Shouldnt fault - stmgeia r0!, {r3 - r6} - tst ip, #8 - ldmneia r1!, {r3 - r4} @ Shouldnt fault - stmneia r0!, {r3 - r4} - tst ip, #4 - ldrnet r3, [r1], #4 @ Shouldnt fault - strne r3, [r0], #4 - ands ip, ip, #3 - beq .cfu_0fupi -.cfu_0nowords: teq ip, #0 - beq .cfu_finished -.cfu_nowords: cmp ip, #2 -USER( ldrbt r3, [r1], #1) @ May fault - strb r3, [r0], #1 -USER( ldrgebt r3, [r1], #1) @ May fault - strgeb r3, [r0], #1 -USER( ldrgtbt r3, [r1], #1) @ May fault - strgtb r3, [r0], #1 - b .cfu_finished - -.cfu_not_enough: - movs ip, r2 - bne .cfu_nowords -.cfu_finished: mov r0, #0 - add sp, sp, #8 - LOADREGS(fd,sp!,{r4 - r7, pc}) - -.cfu_src_not_aligned: - bic r1, r1, #3 -USER( ldrt r7, [r1], #4) @ May fault - cmp ip, #2 - bgt .cfu_3fupi - beq .cfu_2fupi -.cfu_1fupi: subs r2, r2, #4 - addmi ip, r2, #4 - bmi .cfu_1nowords - mov r3, r7, pull #8 -USER( ldrt r7, [r1], #4) @ May fault - orr r3, r3, r7, push #24 - str r3, [r0], #4 - mov ip, r1, lsl #32 - PAGE_SHIFT - rsb ip, ip, #0 - movs ip, ip, lsr #32 - PAGE_SHIFT - beq .cfu_1fupi - cmp r2, ip - movlt ip, r2 - sub r2, r2, ip - subs ip, ip, #16 - blt .cfu_1rem8lp - -.cfu_1cpy8lp: mov r3, r7, pull #8 - ldmia r1!, {r4 - r7} @ Shouldnt fault - orr r3, r3, r4, push #24 - mov r4, r4, pull #8 - orr r4, r4, r5, push #24 - mov r5, r5, pull #8 - orr r5, r5, r6, push #24 - mov r6, r6, pull #8 - orr r6, r6, r7, push #24 - stmia r0!, {r3 - r6} - subs ip, ip, #16 - bpl .cfu_1cpy8lp -.cfu_1rem8lp: tst ip, #8 - movne r3, r7, pull #8 - ldmneia r1!, {r4, r7} @ Shouldnt fault - orrne r3, r3, r4, push #24 - movne r4, r4, pull #8 - orrne r4, r4, r7, push #24 - stmneia r0!, {r3 - r4} - tst ip, #4 - movne r3, r7, pull #8 -USER( ldrnet r7, [r1], #4) @ May fault - orrne r3, r3, r7, push #24 - strne r3, [r0], #4 - ands ip, ip, #3 - beq .cfu_1fupi -.cfu_1nowords: mov r3, r7, lsr #byte(1) - teq ip, #0 - beq .cfu_finished - cmp ip, #2 - strb r3, [r0], #1 - movge r3, r7, lsr #byte(2) - strgeb r3, [r0], #1 - movgt r3, r7, lsr #byte(3) - strgtb r3, [r0], #1 - b .cfu_finished - -.cfu_2fupi: subs r2, r2, #4 - addmi ip, r2, #4 - bmi .cfu_2nowords - mov r3, r7, pull #16 -USER( ldrt r7, [r1], #4) @ May fault - orr r3, r3, r7, push #16 - str r3, [r0], #4 - mov ip, r1, lsl #32 - PAGE_SHIFT - rsb ip, ip, #0 - movs ip, ip, lsr #32 - PAGE_SHIFT - beq .cfu_2fupi - cmp r2, ip - movlt ip, r2 - sub r2, r2, ip - subs ip, ip, #16 - blt .cfu_2rem8lp - -.cfu_2cpy8lp: mov r3, r7, pull #16 - ldmia r1!, {r4 - r7} @ Shouldnt fault - orr r3, r3, r4, push #16 - mov r4, r4, pull #16 - orr r4, r4, r5, push #16 - mov r5, r5, pull #16 - orr r5, r5, r6, push #16 - mov r6, r6, pull #16 - orr r6, r6, r7, push #16 - stmia r0!, {r3 - r6} - subs ip, ip, #16 - bpl .cfu_2cpy8lp -.cfu_2rem8lp: tst ip, #8 - movne r3, r7, pull #16 - ldmneia r1!, {r4, r7} @ Shouldnt fault - orrne r3, r3, r4, push #16 - movne r4, r4, pull #16 - orrne r4, r4, r7, push #16 - stmneia r0!, {r3 - r4} - tst ip, #4 - movne r3, r7, pull #16 -USER( ldrnet r7, [r1], #4) @ May fault - orrne r3, r3, r7, push #16 - strne r3, [r0], #4 - ands ip, ip, #3 - beq .cfu_2fupi -.cfu_2nowords: mov r3, r7, lsr #byte(2) - teq ip, #0 - beq .cfu_finished - cmp ip, #2 - strb r3, [r0], #1 - movge r3, r7, lsr #byte(3) - strgeb r3, [r0], #1 -USER( ldrgtbt r3, [r1], #0) @ May fault - strgtb r3, [r0], #1 - b .cfu_finished - -.cfu_3fupi: subs r2, r2, #4 - addmi ip, r2, #4 - bmi .cfu_3nowords - mov r3, r7, pull #24 -USER( ldrt r7, [r1], #4) @ May fault - orr r3, r3, r7, push #8 - str r3, [r0], #4 - mov ip, r1, lsl #32 - PAGE_SHIFT - rsb ip, ip, #0 - movs ip, ip, lsr #32 - PAGE_SHIFT - beq .cfu_3fupi - cmp r2, ip - movlt ip, r2 - sub r2, r2, ip - subs ip, ip, #16 - blt .cfu_3rem8lp - -.cfu_3cpy8lp: mov r3, r7, pull #24 - ldmia r1!, {r4 - r7} @ Shouldnt fault - orr r3, r3, r4, push #8 - mov r4, r4, pull #24 - orr r4, r4, r5, push #8 - mov r5, r5, pull #24 - orr r5, r5, r6, push #8 - mov r6, r6, pull #24 - orr r6, r6, r7, push #8 - stmia r0!, {r3 - r6} - subs ip, ip, #16 - bpl .cfu_3cpy8lp -.cfu_3rem8lp: tst ip, #8 - movne r3, r7, pull #24 - ldmneia r1!, {r4, r7} @ Shouldnt fault - orrne r3, r3, r4, push #8 - movne r4, r4, pull #24 - orrne r4, r4, r7, push #8 - stmneia r0!, {r3 - r4} - tst ip, #4 - movne r3, r7, pull #24 -USER( ldrnet r7, [r1], #4) @ May fault - orrne r3, r3, r7, push #8 - strne r3, [r0], #4 - ands ip, ip, #3 - beq .cfu_3fupi -.cfu_3nowords: mov r3, r7, lsr #byte(3) - teq ip, #0 - beq .cfu_finished - cmp ip, #2 - strb r3, [r0], #1 -USER( ldrgebt r3, [r1], #1) @ May fault - strgeb r3, [r0], #1 -USER( ldrgtbt r3, [r1], #1) @ May fault - strgtb r3, [r0], #1 - b .cfu_finished - - .section .fixup,"ax" - .align 0 - /* - * We took an exception. r0 contains a pointer to - * the byte not copied. - */ -9001: ldr r2, [sp], #4 @ void *to - sub r2, r0, r2 @ bytes copied - ldr r1, [sp], #4 @ unsigned long count - subs r4, r1, r2 @ bytes left to copy - movne r1, r4 - blne __memzero - mov r0, r4 - LOADREGS(fd,sp!, {r4 - r7, pc}) - .previous - -/* Prototype: int uaccess_user_clear_user(void *addr, size_t sz) - * Purpose : clear some user memory - * Params : addr - user memory address to clear - * : sz - number of bytes to clear - * Returns : number of bytes NOT cleared - */ -ENTRY(uaccess_user_clear_user) - stmfd sp!, {r1, lr} - mov r2, #0 - cmp r1, #4 - blt 2f - ands ip, r0, #3 - beq 1f - cmp ip, #2 -USER( strbt r2, [r0], #1) -USER( strlebt r2, [r0], #1) -USER( strltbt r2, [r0], #1) - rsb ip, ip, #4 - sub r1, r1, ip @ 7 6 5 4 3 2 1 -1: subs r1, r1, #8 @ -1 -2 -3 -4 -5 -6 -7 -USER( strplt r2, [r0], #4) -USER( strplt r2, [r0], #4) - bpl 1b - adds r1, r1, #4 @ 3 2 1 0 -1 -2 -3 -USER( strplt r2, [r0], #4) -2: tst r1, #2 @ 1x 1x 0x 0x 1x 1x 0x -USER( strnebt r2, [r0], #1) -USER( strnebt r2, [r0], #1) - tst r1, #1 @ x1 x0 x1 x0 x1 x0 x1 -USER( strnebt r2, [r0], #1) - mov r0, #0 - LOADREGS(fd,sp!, {r1, pc}) - - .section .fixup,"ax" - .align 0 -9001: LOADREGS(fd,sp!, {r0, pc}) - .previous - -/* - * Copy a string from user space to kernel space. - * r0 = dst, r1 = src, r2 = byte length - * returns the number of characters copied (strlen of copied string), - * -EFAULT on exception, or "len" if we fill the whole buffer - */ -ENTRY(uaccess_user_strncpy_from_user) - save_lr - mov ip, r1 -1: subs r2, r2, #1 -USER( ldrplbt r3, [r1], #1) - bmi 2f - strb r3, [r0], #1 - teq r3, #0 - bne 1b - sub r1, r1, #1 @ take NUL character out of count -2: sub r0, r1, ip - restore_pc - - .section .fixup,"ax" - .align 0 -9001: mov r3, #0 - strb r3, [r0, #0] @ null terminate - mov r0, #-EFAULT - restore_pc - .previous - -/* Prototype: unsigned long uaccess_user_strnlen_user(const char *str, long n) - * Purpose : get length of a string in user memory - * Params : str - address of string in user memory - * Returns : length of string *including terminator* - * or zero on exception, or n + 1 if too long - */ -ENTRY(uaccess_user_strnlen_user) - save_lr - mov r2, r0 -1: -USER( ldrbt r3, [r0], #1) - teq r3, #0 - beq 2f - subs r1, r1, #1 - bne 1b - add r0, r0, #1 -2: sub r0, r0, r2 - restore_pc - - .section .fixup,"ax" - .align 0 -9001: mov r0, #0 - restore_pc - .previous - diff --git a/trunk/arch/arm26/lib/ucmpdi2.c b/trunk/arch/arm26/lib/ucmpdi2.c deleted file mode 100644 index 6c6ae63efa02..000000000000 --- a/trunk/arch/arm26/lib/ucmpdi2.c +++ /dev/null @@ -1,51 +0,0 @@ -/* More subroutines needed by GCC output code on some machines. */ -/* Compile this one with gcc. */ -/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* As a special exception, if you link this library with other files, - some of which are compiled with GCC, to produce an executable, - this library does not by itself cause the resulting executable - to be covered by the GNU General Public License. - This exception does not however invalidate any other reasons why - the executable file might be covered by the GNU General Public License. - */ -/* support functions required by the kernel. based on code from gcc-2.95.3 */ -/* I Molton 29/07/01 */ - -#include "gcclib.h" - -word_type -__ucmpdi2 (DItype a, DItype b) -{ - DIunion au, bu; - - au.ll = a, bu.ll = b; - - if ((USItype) au.s.high < (USItype) bu.s.high) - return 0; - else if ((USItype) au.s.high > (USItype) bu.s.high) - return 2; - if ((USItype) au.s.low < (USItype) bu.s.low) - return 0; - else if ((USItype) au.s.low > (USItype) bu.s.low) - return 2; - return 1; -} - diff --git a/trunk/arch/arm26/lib/udivdi3.c b/trunk/arch/arm26/lib/udivdi3.c deleted file mode 100644 index d25195f673f4..000000000000 --- a/trunk/arch/arm26/lib/udivdi3.c +++ /dev/null @@ -1,242 +0,0 @@ -/* More subroutines needed by GCC output code on some machines. */ -/* Compile this one with gcc. */ -/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* As a special exception, if you link this library with other files, - some of which are compiled with GCC, to produce an executable, - this library does not by itself cause the resulting executable - to be covered by the GNU General Public License. - This exception does not however invalidate any other reasons why - the executable file might be covered by the GNU General Public License. - */ -/* support functions required by the kernel. based on code from gcc-2.95.3 */ -/* I Molton 29/07/01 */ - -#include "gcclib.h" -#include "longlong.h" - -static const UQItype __clz_tab[] = -{ - 0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5, - 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6, - 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, - 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, -}; - -UDItype -__udivmoddi4 (UDItype n, UDItype d, UDItype *rp) -{ - DIunion ww; - DIunion nn, dd; - DIunion rr; - USItype d0, d1, n0, n1, n2; - USItype q0, q1; - USItype b, bm; - - nn.ll = n; - dd.ll = d; - - d0 = dd.s.low; - d1 = dd.s.high; - n0 = nn.s.low; - n1 = nn.s.high; - - if (d1 == 0) - { - if (d0 > n1) - { - /* 0q = nn / 0D */ - - count_leading_zeros (bm, d0); - - if (bm != 0) - { - /* Normalize, i.e. make the most significant bit of the - denominator set. */ - - d0 = d0 << bm; - n1 = (n1 << bm) | (n0 >> (SI_TYPE_SIZE - bm)); - n0 = n0 << bm; - } - - udiv_qrnnd (q0, n0, n1, n0, d0); - q1 = 0; - - /* Remainder in n0 >> bm. */ - } - else - { - /* qq = NN / 0d */ - - if (d0 == 0) - d0 = 1 / d0; /* Divide intentionally by zero. */ - - count_leading_zeros (bm, d0); - - if (bm == 0) - { - /* From (n1 >= d0) /\ (the most significant bit of d0 is set), - conclude (the most significant bit of n1 is set) /\ (the - leading quotient digit q1 = 1). - - This special case is necessary, not an optimization. - (Shifts counts of SI_TYPE_SIZE are undefined.) */ - - n1 -= d0; - q1 = 1; - } - else - { - /* Normalize. */ - - b = SI_TYPE_SIZE - bm; - - d0 = d0 << bm; - n2 = n1 >> b; - n1 = (n1 << bm) | (n0 >> b); - n0 = n0 << bm; - - udiv_qrnnd (q1, n1, n2, n1, d0); - } - - /* n1 != d0... */ - - udiv_qrnnd (q0, n0, n1, n0, d0); - - /* Remainder in n0 >> bm. */ - } - - if (rp != 0) - { - rr.s.low = n0 >> bm; - rr.s.high = 0; - *rp = rr.ll; - } - } - else - { - if (d1 > n1) - { - /* 00 = nn / DD */ - - q0 = 0; - q1 = 0; - - /* Remainder in n1n0. */ - if (rp != 0) - { - rr.s.low = n0; - rr.s.high = n1; - *rp = rr.ll; - } - } - else - { - /* 0q = NN / dd */ - - count_leading_zeros (bm, d1); - if (bm == 0) - { - /* From (n1 >= d1) /\ (the most significant bit of d1 is set), - conclude (the most significant bit of n1 is set) /\ (the - quotient digit q0 = 0 or 1). - - This special case is necessary, not an optimization. */ - - /* The condition on the next line takes advantage of that - n1 >= d1 (true due to program flow). */ - if (n1 > d1 || n0 >= d0) - { - q0 = 1; - sub_ddmmss (n1, n0, n1, n0, d1, d0); - } - else - q0 = 0; - - q1 = 0; - - if (rp != 0) - { - rr.s.low = n0; - rr.s.high = n1; - *rp = rr.ll; - } - } - else - { - USItype m1, m0; - /* Normalize. */ - - b = SI_TYPE_SIZE - bm; - - d1 = (d1 << bm) | (d0 >> b); - d0 = d0 << bm; - n2 = n1 >> b; - n1 = (n1 << bm) | (n0 >> b); - n0 = n0 << bm; - - udiv_qrnnd (q0, n1, n2, n1, d1); - umul_ppmm (m1, m0, q0, d0); - - if (m1 > n1 || (m1 == n1 && m0 > n0)) - { - q0--; - sub_ddmmss (m1, m0, m1, m0, d1, d0); - } - - q1 = 0; - - /* Remainder in (n1n0 - m1m0) >> bm. */ - if (rp != 0) - { - sub_ddmmss (n1, n0, n1, n0, m1, m0); - rr.s.low = (n1 << b) | (n0 >> bm); - rr.s.high = n1 >> bm; - *rp = rr.ll; - } - } - } - } - - ww.s.low = q0; - ww.s.high = q1; - return ww.ll; -} - -UDItype -__udivdi3 (UDItype n, UDItype d) -{ - return __udivmoddi4 (n, d, (UDItype *) 0); -} - -UDItype -__umoddi3 (UDItype u, UDItype v) -{ - UDItype w; - - (void) __udivmoddi4 (u ,v, &w); - - return w; -} - diff --git a/trunk/arch/arm26/machine/Makefile b/trunk/arch/arm26/machine/Makefile deleted file mode 100644 index 86ea97cc07fc..000000000000 --- a/trunk/arch/arm26/machine/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# -# Makefile for the linux kernel. -# - -# Object file lists. - -obj-y := dma.o irq.o latches.o - diff --git a/trunk/arch/arm26/machine/dma.c b/trunk/arch/arm26/machine/dma.c deleted file mode 100644 index 4402a5a1b78f..000000000000 --- a/trunk/arch/arm26/machine/dma.c +++ /dev/null @@ -1,214 +0,0 @@ -/* - * linux/arch/arm26/kernel/dma.c - * - * Copyright (C) 1998-1999 Dave Gilbert / Russell King - * Copyright (C) 2003 Ian Molton - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * DMA functions specific to Archimedes and A5000 architecture - */ -#include -#include - -#include -#include -#include -#include -#include -#include - -#define DPRINTK(x...) printk(KERN_DEBUG x) - -#if defined(CONFIG_BLK_DEV_FD1772) || defined(CONFIG_BLK_DEV_FD1772_MODULE) - -extern unsigned char fdc1772_dma_read, fdc1772_dma_read_end; -extern unsigned char fdc1772_dma_write, fdc1772_dma_write_end; -extern void fdc1772_setupdma(unsigned int count,unsigned int addr); - -static void arc_floppy_data_enable_dma(dmach_t channel, dma_t *dma) -{ - DPRINTK("arc_floppy_data_enable_dma\n"); - - if (dma->using_sg) - BUG(); - - switch (dma->dma_mode) { - case DMA_MODE_READ: { /* read */ - unsigned long flags; - DPRINTK("enable_dma fdc1772 data read\n"); - local_save_flags_cli(flags); - clf(); - - memcpy ((void *)0x1c, (void *)&fdc1772_dma_read, - &fdc1772_dma_read_end - &fdc1772_dma_read); - fdc1772_setupdma(dma->buf.length, dma->buf.__address); /* Sets data pointer up */ - enable_fiq(FIQ_FLOPPYDATA); - local_irq_restore(flags); - } - break; - - case DMA_MODE_WRITE: { /* write */ - unsigned long flags; - DPRINTK("enable_dma fdc1772 data write\n"); - local_save_flags_cli(flags); - clf(); - memcpy ((void *)0x1c, (void *)&fdc1772_dma_write, - &fdc1772_dma_write_end - &fdc1772_dma_write); - fdc1772_setupdma(dma->buf.length, dma->buf.__address); /* Sets data pointer up */ - enable_fiq(FIQ_FLOPPYDATA); - - local_irq_restore(flags); - } - break; - default: - printk ("enable_dma: dma%d not initialised\n", channel); - } -} - -static int arc_floppy_data_get_dma_residue(dmach_t channel, dma_t *dma) -{ - extern unsigned int fdc1772_bytestogo; - - /* 10/1/1999 DAG - I presume its the number of bytes left? */ - return fdc1772_bytestogo; -} - -static void arc_floppy_cmdend_enable_dma(dmach_t channel, dma_t *dma) -{ - /* Need to build a branch at the FIQ address */ - extern void fdc1772_comendhandler(void); - unsigned long flags; - - DPRINTK("arc_floppy_cmdend_enable_dma\n"); - /*printk("enable_dma fdc1772 command end FIQ\n");*/ - save_flags(flags); - clf(); - - /* B fdc1772_comendhandler */ - *((unsigned int *)0x1c)=0xea000000 | - (((unsigned int)fdc1772_comendhandler-(0x1c+8))/4); - - local_irq_restore(flags); -} - -static int arc_floppy_cmdend_get_dma_residue(dmach_t channel, dma_t *dma) -{ - /* 10/1/1999 DAG - Presume whether there is an outstanding command? */ - extern unsigned int fdc1772_fdc_int_done; - - /* Explicit! If the int done is 0 then 1 int to go */ - return (fdc1772_fdc_int_done==0)?1:0; -} - -static void arc_disable_dma(dmach_t channel, dma_t *dma) -{ - disable_fiq(dma->dma_irq); -} - -static struct dma_ops arc_floppy_data_dma_ops = { - .type = "FIQDMA", - .enable = arc_floppy_data_enable_dma, - .disable = arc_disable_dma, - .residue = arc_floppy_data_get_dma_residue, -}; - -static struct dma_ops arc_floppy_cmdend_dma_ops = { - .type = "FIQCMD", - .enable = arc_floppy_cmdend_enable_dma, - .disable = arc_disable_dma, - .residue = arc_floppy_cmdend_get_dma_residue, -}; -#endif - -#ifdef CONFIG_ARCH_A5K -static struct fiq_handler fh = { - .name = "floppydata" -}; - -static int a5k_floppy_get_dma_residue(dmach_t channel, dma_t *dma) -{ - struct pt_regs regs; - get_fiq_regs(®s); - return regs.ARM_r9; -} - -static void a5k_floppy_enable_dma(dmach_t channel, dma_t *dma) -{ - struct pt_regs regs; - void *fiqhandler_start; - unsigned int fiqhandler_length; - extern void floppy_fiqsetup(unsigned long len, unsigned long addr, - unsigned long port); - - if (dma->using_sg) - BUG(); - - if (dma->dma_mode == DMA_MODE_READ) { - extern unsigned char floppy_fiqin_start, floppy_fiqin_end; - fiqhandler_start = &floppy_fiqin_start; - fiqhandler_length = &floppy_fiqin_end - &floppy_fiqin_start; - } else { - extern unsigned char floppy_fiqout_start, floppy_fiqout_end; - fiqhandler_start = &floppy_fiqout_start; - fiqhandler_length = &floppy_fiqout_end - &floppy_fiqout_start; - } - if (claim_fiq(&fh)) { - printk("floppydma: couldn't claim FIQ.\n"); - return; - } - memcpy((void *)0x1c, fiqhandler_start, fiqhandler_length); - regs.ARM_r9 = dma->buf.length; - regs.ARM_r10 = (unsigned long)dma->buf.__address; - regs.ARM_fp = FLOPPYDMA_BASE; - set_fiq_regs(®s); - enable_fiq(dma->dma_irq); -} - -static void a5k_floppy_disable_dma(dmach_t channel, dma_t *dma) -{ - disable_fiq(dma->dma_irq); - release_fiq(&fh); -} - -static struct dma_ops a5k_floppy_dma_ops = { - .type = "FIQDMA", - .enable = a5k_floppy_enable_dma, - .disable = a5k_floppy_disable_dma, - .residue = a5k_floppy_get_dma_residue, -}; -#endif - -/* - * This is virtual DMA - we don't need anything here - */ -static void sound_enable_disable_dma(dmach_t channel, dma_t *dma) -{ -} - -static struct dma_ops sound_dma_ops = { - .type = "VIRTUAL", - .enable = sound_enable_disable_dma, - .disable = sound_enable_disable_dma, -}; - -void __init arch_dma_init(dma_t *dma) -{ -#if defined(CONFIG_BLK_DEV_FD1772) || defined(CONFIG_BLK_DEV_FD1772_MODULE) - if (machine_is_archimedes()) { - dma[DMA_VIRTUAL_FLOPPY0].dma_irq = FIQ_FLOPPYDATA; - dma[DMA_VIRTUAL_FLOPPY0].d_ops = &arc_floppy_data_dma_ops; - dma[DMA_VIRTUAL_FLOPPY1].dma_irq = 1; - dma[DMA_VIRTUAL_FLOPPY1].d_ops = &arc_floppy_cmdend_dma_ops; - } -#endif -#ifdef CONFIG_ARCH_A5K - if (machine_is_a5k()) { - dma[DMA_VIRTUAL_FLOPPY0].dma_irq = FIQ_FLOPPYDATA; - dma[DMA_VIRTUAL_FLOPPY0].d_ops = &a5k_floppy_dma_ops; - } -#endif - dma[DMA_VIRTUAL_SOUND].d_ops = &sound_dma_ops; -} diff --git a/trunk/arch/arm26/machine/irq.c b/trunk/arch/arm26/machine/irq.c deleted file mode 100644 index a60d543edecc..000000000000 --- a/trunk/arch/arm26/machine/irq.c +++ /dev/null @@ -1,164 +0,0 @@ -/* - * linux/arch/arm26/mach-arc/irq.c - * - * Copyright (C) 1996 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Changelog: - * 24-09-1996 RMK Created - * 10-10-1996 RMK Brought up to date with arch-sa110eval - * 22-10-1996 RMK Changed interrupt numbers & uses new inb/outb macros - * 11-01-1998 RMK Added mask_and_ack_irq - * 22-08-1998 RMK Restructured IRQ routines - * 08-09-2002 IM Brought up to date for 2.5 - * 01-06-2003 JMA Removed arc_fiq_chip - */ -#include - -#include -#include -#include -#include -#include - -extern void init_FIQ(void); - -#define a_clf() clf() -#define a_stf() stf() - -static void arc_ack_irq_a(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << irq; - a_clf(); - val = ioc_readb(IOC_IRQMASKA); - ioc_writeb(val & ~mask, IOC_IRQMASKA); - ioc_writeb(mask, IOC_IRQCLRA); - a_stf(); -} - -static void arc_mask_irq_a(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << irq; - a_clf(); - val = ioc_readb(IOC_IRQMASKA); - ioc_writeb(val & ~mask, IOC_IRQMASKA); - a_stf(); -} - -static void arc_unmask_irq_a(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << irq; - a_clf(); - val = ioc_readb(IOC_IRQMASKA); - ioc_writeb(val | mask, IOC_IRQMASKA); - a_stf(); -} - -static struct irqchip arc_a_chip = { - .ack = arc_ack_irq_a, - .mask = arc_mask_irq_a, - .unmask = arc_unmask_irq_a, -}; - -static void arc_mask_irq_b(unsigned int irq) -{ - unsigned int val, mask; - mask = 1 << (irq & 7); - val = ioc_readb(IOC_IRQMASKB); - ioc_writeb(val & ~mask, IOC_IRQMASKB); -} - -static void arc_unmask_irq_b(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = ioc_readb(IOC_IRQMASKB); - ioc_writeb(val | mask, IOC_IRQMASKB); -} - -static struct irqchip arc_b_chip = { - .ack = arc_mask_irq_b, - .mask = arc_mask_irq_b, - .unmask = arc_unmask_irq_b, -}; - -/* FIXME - JMA none of these functions are used in arm26 currently -static void arc_mask_irq_fiq(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = ioc_readb(IOC_FIQMASK); - ioc_writeb(val & ~mask, IOC_FIQMASK); -} - -static void arc_unmask_irq_fiq(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = ioc_readb(IOC_FIQMASK); - ioc_writeb(val | mask, IOC_FIQMASK); -} - -static struct irqchip arc_fiq_chip = { - .ack = arc_mask_irq_fiq, - .mask = arc_mask_irq_fiq, - .unmask = arc_unmask_irq_fiq, -}; -*/ - -void __init arc_init_irq(void) -{ - unsigned int irq, flags; - - /* Disable all IOC interrupt sources */ - ioc_writeb(0, IOC_IRQMASKA); - ioc_writeb(0, IOC_IRQMASKB); - ioc_writeb(0, IOC_FIQMASK); - - for (irq = 0; irq < NR_IRQS; irq++) { - flags = IRQF_VALID; - - if (irq <= 6 || (irq >= 9 && irq <= 15)) - flags |= IRQF_PROBE; - - if (irq == IRQ_KEYBOARDTX) - flags |= IRQF_NOAUTOEN; - - switch (irq) { - case 0 ... 7: - set_irq_chip(irq, &arc_a_chip); - set_irq_handler(irq, do_level_IRQ); - set_irq_flags(irq, flags); - break; - - case 8 ... 15: - set_irq_chip(irq, &arc_b_chip); - set_irq_handler(irq, do_level_IRQ); - set_irq_flags(irq, flags); - -/* case 64 ... 72: - set_irq_chip(irq, &arc_fiq_chip); - set_irq_flags(irq, flags); - break; -*/ - - } - } - - irq_desc[IRQ_KEYBOARDTX].noautoenable = 1; - - init_FIQ(); -} - diff --git a/trunk/arch/arm26/machine/latches.c b/trunk/arch/arm26/machine/latches.c deleted file mode 100644 index 94f05d2a3b2b..000000000000 --- a/trunk/arch/arm26/machine/latches.c +++ /dev/null @@ -1,72 +0,0 @@ -/* - * linux/arch/arm26/kernel/latches.c - * - * Copyright (C) David Alan Gilbert 1995/1996,2000 - * Copyright (C) Ian Molton 2003 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Support for the latches on the old Archimedes which control the floppy, - * hard disc and printer - */ -#include -#include -#include -#include - -#include -#include -#include -#include - -static unsigned char latch_a_copy; -static unsigned char latch_b_copy; - -/* newval=(oldval & ~mask)|newdata */ -void oldlatch_aupdate(unsigned char mask,unsigned char newdata) -{ - unsigned long flags; - - BUG_ON(!machine_is_archimedes()); - - local_irq_save(flags); //FIXME: was local_save_flags - latch_a_copy = (latch_a_copy & ~mask) | newdata; - __raw_writeb(latch_a_copy, LATCHA_BASE); - local_irq_restore(flags); - - printk("Latch: A = 0x%02x\n", latch_a_copy); -} - - -/* newval=(oldval & ~mask)|newdata */ -void oldlatch_bupdate(unsigned char mask,unsigned char newdata) -{ - unsigned long flags; - - BUG_ON(!machine_is_archimedes()); - - - local_irq_save(flags);//FIXME: was local_save_flags - latch_b_copy = (latch_b_copy & ~mask) | newdata; - __raw_writeb(latch_b_copy, LATCHB_BASE); - local_irq_restore(flags); - - printk("Latch: B = 0x%02x\n", latch_b_copy); -} - -static int __init oldlatch_init(void) -{ - if (machine_is_archimedes()) { - oldlatch_aupdate(0xff, 0xff); - /* Thats no FDC reset...*/ - oldlatch_bupdate(0xff, LATCHB_FDCRESET); - } - return 0; -} - -arch_initcall(oldlatch_init); - -EXPORT_SYMBOL(oldlatch_aupdate); -EXPORT_SYMBOL(oldlatch_bupdate); diff --git a/trunk/arch/arm26/mm/Makefile b/trunk/arch/arm26/mm/Makefile deleted file mode 100644 index a8fb166d5c6d..000000000000 --- a/trunk/arch/arm26/mm/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -# -# Makefile for the linux arm26-specific parts of the memory manager. -# - -obj-y := init.o extable.o proc-funcs.o memc.o fault.o \ - small_page.o diff --git a/trunk/arch/arm26/mm/extable.c b/trunk/arch/arm26/mm/extable.c deleted file mode 100644 index 38e1958d9538..000000000000 --- a/trunk/arch/arm26/mm/extable.c +++ /dev/null @@ -1,24 +0,0 @@ -/* - * linux/arch/arm26/mm/extable.c - */ - -#include -#include - -int fixup_exception(struct pt_regs *regs) -{ - const struct exception_table_entry *fixup; - - fixup = search_exception_tables(instruction_pointer(regs)); - - /* - * The kernel runs in SVC mode - make sure we keep running in SVC mode - * by frobbing the PSR appropriately (PSR and PC are in the same reg. - * on ARM26) - */ - if (fixup) - regs->ARM_pc = fixup->fixup | PSR_I_BIT | MODE_SVC26; - - return fixup != NULL; -} - diff --git a/trunk/arch/arm26/mm/fault.c b/trunk/arch/arm26/mm/fault.c deleted file mode 100644 index dec638a0c8d9..000000000000 --- a/trunk/arch/arm26/mm/fault.c +++ /dev/null @@ -1,312 +0,0 @@ -/* - * linux/arch/arm26/mm/fault.c - * - * Copyright (C) 1995 Linus Torvalds - * Modifications for ARM processor (c) 1995-2001 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include //FIXME this header may be bogusly included - -#include "fault.h" - -#define FAULT_CODE_LDRSTRPOST 0x80 -#define FAULT_CODE_LDRSTRPRE 0x40 -#define FAULT_CODE_LDRSTRREG 0x20 -#define FAULT_CODE_LDMSTM 0x10 -#define FAULT_CODE_LDCSTC 0x08 -#define FAULT_CODE_PREFETCH 0x04 -#define FAULT_CODE_WRITE 0x02 -#define FAULT_CODE_FORCECOW 0x01 - -#define DO_COW(m) ((m) & (FAULT_CODE_WRITE|FAULT_CODE_FORCECOW)) -#define READ_FAULT(m) (!((m) & FAULT_CODE_WRITE)) -#define DEBUG -/* - * This is useful to dump out the page tables associated with - * 'addr' in mm 'mm'. - */ -void show_pte(struct mm_struct *mm, unsigned long addr) -{ - pgd_t *pgd; - - if (!mm) - mm = &init_mm; - - printk(KERN_ALERT "pgd = %p\n", mm->pgd); - pgd = pgd_offset(mm, addr); - printk(KERN_ALERT "[%08lx] *pgd=%08lx", addr, pgd_val(*pgd)); - - do { - pmd_t *pmd; - pte_t *pte; - - pmd = pmd_offset(pgd, addr); - - if (pmd_none(*pmd)) - break; - - if (pmd_bad(*pmd)) { - printk("(bad)"); - break; - } - - /* We must not map this if we have highmem enabled */ - /* FIXME */ - pte = pte_offset_map(pmd, addr); - printk(", *pte=%08lx", pte_val(*pte)); - pte_unmap(pte); - } while(0); - - printk("\n"); -} - -/* - * Oops. The kernel tried to access some page that wasn't present. - */ -static void -__do_kernel_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr, - struct pt_regs *regs) -{ - /* - * Are we prepared to handle this kernel fault? - */ - if (fixup_exception(regs)) - return; - - /* - * No handler, we'll have to terminate things with extreme prejudice. - */ - bust_spinlocks(1); - printk(KERN_ALERT - "Unable to handle kernel %s at virtual address %08lx\n", - (addr < PAGE_SIZE) ? "NULL pointer dereference" : - "paging request", addr); - - show_pte(mm, addr); - die("Oops", regs, fsr); - bust_spinlocks(0); - do_exit(SIGKILL); -} - -/* - * Something tried to access memory that isn't in our memory map.. - * User mode accesses just cause a SIGSEGV - */ -static void -__do_user_fault(struct task_struct *tsk, unsigned long addr, - unsigned int fsr, int code, struct pt_regs *regs) -{ - struct siginfo si; - -#ifdef CONFIG_DEBUG_USER - printk("%s: unhandled page fault at 0x%08lx, code 0x%03x\n", - tsk->comm, addr, fsr); - show_pte(tsk->mm, addr); - show_regs(regs); - //dump_backtrace(regs, tsk); // FIXME ARM32 dropped this - why? - while(1); //FIXME - hack to stop debug going nutso -#endif - - tsk->thread.address = addr; - tsk->thread.error_code = fsr; - tsk->thread.trap_no = 14; - si.si_signo = SIGSEGV; - si.si_errno = 0; - si.si_code = code; - si.si_addr = (void *)addr; - force_sig_info(SIGSEGV, &si, tsk); -} - -static int -__do_page_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr, - struct task_struct *tsk) -{ - struct vm_area_struct *vma; - int fault, mask; - - vma = find_vma(mm, addr); - fault = -2; /* bad map area */ - if (!vma) - goto out; - if (vma->vm_start > addr) - goto check_stack; - - /* - * Ok, we have a good vm_area for this - * memory access, so we can handle it. - */ -good_area: - if (READ_FAULT(fsr)) /* read? */ - mask = VM_READ|VM_EXEC|VM_WRITE; - else - mask = VM_WRITE; - - fault = -1; /* bad access type */ - if (!(vma->vm_flags & mask)) - goto out; - - /* - * If for any reason at all we couldn't handle - * the fault, make sure we exit gracefully rather - * than endlessly redo the fault. - */ -survive: - fault = handle_mm_fault(mm, vma, addr & PAGE_MASK, DO_COW(fsr)); - if (unlikely(fault & VM_FAULT_ERROR)) { - if (fault & VM_FAULT_OOM) - goto out_of_memory; - else if (fault & VM_FAULT_SIGBUS) - return fault; - BUG(); - } - if (fault & VM_FAULT_MAJOR) - tsk->maj_flt++; - else - tsk->min_flt++; - return fault; - -out_of_memory: - fault = -3; /* out of memory */ - if (!is_init(tsk)) - goto out; - - /* - * If we are out of memory for pid1, - * sleep for a while and retry - */ - yield(); - goto survive; - -check_stack: - if (vma->vm_flags & VM_GROWSDOWN && !expand_stack(vma, addr)) - goto good_area; -out: - return fault; -} - -int do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) -{ - struct task_struct *tsk; - struct mm_struct *mm; - int fault; - - tsk = current; - mm = tsk->mm; - - /* - * If we're in an interrupt or have no user - * context, we must not take the fault.. - */ - if (in_atomic() || !mm) - goto no_context; - - down_read(&mm->mmap_sem); - fault = __do_page_fault(mm, addr, fsr, tsk); - up_read(&mm->mmap_sem); - - /* - * Handle the "normal" case first - */ - if (likely(!(fault & VM_FAULT_ERROR))) - return 0; - if (fault & VM_FAULT_SIGBUS) - goto do_sigbus; - /* else VM_FAULT_OOM */ - - /* - * If we are in kernel mode at this point, we - * have no context to handle this fault with. - * FIXME - is this test right? - */ - if (!user_mode(regs)){ - goto no_context; - } - - if (fault == -3) { - /* - * We ran out of memory, or some other thing happened to - * us that made us unable to handle the page fault gracefully. - */ - printk("VM: killing process %s\n", tsk->comm); - do_exit(SIGKILL); - } - else{ - __do_user_fault(tsk, addr, fsr, fault == -1 ? SEGV_ACCERR : SEGV_MAPERR, regs); - } - - return 0; - - -/* - * We ran out of memory, or some other thing happened to us that made - * us unable to handle the page fault gracefully. - */ -do_sigbus: - /* - * Send a sigbus, regardless of whether we were in kernel - * or user mode. - */ - tsk->thread.address = addr; //FIXME - need other bits setting? - tsk->thread.error_code = fsr; - tsk->thread.trap_no = 14; - force_sig(SIGBUS, tsk); -#ifdef CONFIG_DEBUG_USER - printk(KERN_DEBUG "%s: sigbus at 0x%08lx, pc=0x%08lx\n", - current->comm, addr, instruction_pointer(regs)); -#endif - - /* Kernel mode? Handle exceptions or die */ - if (user_mode(regs)) - return 0; - -no_context: - __do_kernel_fault(mm, addr, fsr, regs); - return 0; -} - -/* - * Handle a data abort. Note that we have to handle a range of addresses - * on ARM2/3 for ldm. If both pages are zero-mapped, then we have to force - * a copy-on-write. However, on the second page, we always force COW. - */ -asmlinkage void -do_DataAbort(unsigned long min_addr, unsigned long max_addr, int mode, struct pt_regs *regs) -{ - do_page_fault(min_addr, mode, regs); - - if ((min_addr ^ max_addr) >> PAGE_SHIFT){ - do_page_fault(max_addr, mode | FAULT_CODE_FORCECOW, regs); - } -} - -asmlinkage int -do_PrefetchAbort(unsigned long addr, struct pt_regs *regs) -{ -#if 0 - if (the memc mapping for this page exists) { - printk ("Page in, but got abort (undefined instruction?)\n"); - return 0; - } -#endif - do_page_fault(addr, FAULT_CODE_PREFETCH, regs); - return 1; -} - diff --git a/trunk/arch/arm26/mm/fault.h b/trunk/arch/arm26/mm/fault.h deleted file mode 100644 index 4442d00d86ac..000000000000 --- a/trunk/arch/arm26/mm/fault.h +++ /dev/null @@ -1,5 +0,0 @@ -void show_pte(struct mm_struct *mm, unsigned long addr); - -int do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs); - -unsigned long search_extable(unsigned long addr); //FIXME - is it right? diff --git a/trunk/arch/arm26/mm/init.c b/trunk/arch/arm26/mm/init.c deleted file mode 100644 index 36e7ee3f8321..000000000000 --- a/trunk/arch/arm26/mm/init.c +++ /dev/null @@ -1,403 +0,0 @@ -/* - * linux/arch/arm26/mm/init.c - * - * Copyright (C) 1995-2002 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -#include - -struct mmu_gather mmu_gathers[NR_CPUS]; - -extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; -extern char _stext, _text, _etext, _end, __init_begin, __init_end; -#ifdef CONFIG_XIP_KERNEL -extern char _endtext, _sdata; -#endif -extern unsigned long phys_initrd_start; -extern unsigned long phys_initrd_size; - -/* - * The sole use of this is to pass memory configuration - * data from paging_init to mem_init. - */ -static struct meminfo meminfo __initdata = { 0, }; - -/* - * empty_zero_page is a special page that is used for - * zero-initialized data and COW. - */ -struct page *empty_zero_page; - -void show_mem(void) -{ - int free = 0, total = 0, reserved = 0; - int shared = 0, cached = 0, slab = 0; - struct page *page, *end; - - printk("Mem-info:\n"); - show_free_areas(); - printk("Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10)); - - - page = NODE_MEM_MAP(0); - end = page + NODE_DATA(0)->node_spanned_pages; - - do { - total++; - if (PageReserved(page)) - reserved++; - else if (PageSwapCache(page)) - cached++; - else if (PageSlab(page)) - slab++; - else if (!page_count(page)) - free++; - else - shared += page_count(page) - 1; - page++; - } while (page < end); - - printk("%d pages of RAM\n", total); - printk("%d free pages\n", free); - printk("%d reserved pages\n", reserved); - printk("%d slab pages\n", slab); - printk("%d pages shared\n", shared); - printk("%d pages swap cached\n", cached); -} - -struct node_info { - unsigned int start; - unsigned int end; - int bootmap_pages; -}; - -/* - * FIXME: We really want to avoid allocating the bootmap bitmap - * over the top of the initrd. Hopefully, this is located towards - * the start of a bank, so if we allocate the bootmap bitmap at - * the end, we won't clash. - */ -static unsigned int __init -find_bootmap_pfn(struct meminfo *mi, unsigned int bootmap_pages) -{ - unsigned int start_pfn, bootmap_pfn; - unsigned int start, end; - - start_pfn = PFN_UP((unsigned long)&_end); - bootmap_pfn = 0; - - /* ARM26 machines only have one node */ - if (mi->bank->node != 0) - BUG(); - - start = PFN_UP(mi->bank->start); - end = PFN_DOWN(mi->bank->size + mi->bank->start); - - if (start < start_pfn) - start = start_pfn; - - if (end <= start) - BUG(); - - if (end - start >= bootmap_pages) - bootmap_pfn = start; - else - BUG(); - - return bootmap_pfn; -} - -/* - * Scan the memory info structure and pull out: - * - the end of memory - * - the number of nodes - * - the pfn range of each node - * - the number of bootmem bitmap pages - */ -static void __init -find_memend_and_nodes(struct meminfo *mi, struct node_info *np) -{ - unsigned int memend_pfn = 0; - - nodes_clear(node_online_map); - node_set_online(0); - - np->bootmap_pages = 0; - - if (mi->bank->size == 0) { - BUG(); - } - - /* - * Get the start and end pfns for this bank - */ - np->start = PFN_UP(mi->bank->start); - np->end = PFN_DOWN(mi->bank->start + mi->bank->size); - - if (memend_pfn < np->end) - memend_pfn = np->end; - - /* - * Calculate the number of pages we require to - * store the bootmem bitmaps. - */ - np->bootmap_pages = bootmem_bootmap_pages(np->end - np->start); - - /* - * This doesn't seem to be used by the Linux memory - * manager any more. If we can get rid of it, we - * also get rid of some of the stuff above as well. - */ - max_low_pfn = memend_pfn - PFN_DOWN(PHYS_OFFSET); - max_pfn = memend_pfn - PFN_DOWN(PHYS_OFFSET); - mi->end = memend_pfn << PAGE_SHIFT; - -} - -/* - * Initialise the bootmem allocator for all nodes. This is called - * early during the architecture specific initialisation. - */ -void __init bootmem_init(struct meminfo *mi) -{ - struct node_info node_info; - unsigned int bootmap_pfn; - pg_data_t *pgdat = NODE_DATA(0); - - find_memend_and_nodes(mi, &node_info); - - bootmap_pfn = find_bootmap_pfn(mi, node_info.bootmap_pages); - - /* - * Note that node 0 must always have some pages. - */ - if (node_info.end == 0) - BUG(); - - /* - * Initialise the bootmem allocator. - */ - init_bootmem_node(pgdat, bootmap_pfn, node_info.start, node_info.end); - - /* - * Register all available RAM in this node with the bootmem allocator. - */ - free_bootmem_node(pgdat, mi->bank->start, mi->bank->size); - - /* - * Register the kernel text and data with bootmem. - * Note: with XIP we dont register .text since - * its in ROM. - */ -#ifdef CONFIG_XIP_KERNEL - reserve_bootmem_node(pgdat, __pa(&_sdata), &_end - &_sdata); -#else - reserve_bootmem_node(pgdat, __pa(&_stext), &_end - &_stext); -#endif - - /* - * And don't forget to reserve the allocator bitmap, - * which will be freed later. - */ - reserve_bootmem_node(pgdat, bootmap_pfn << PAGE_SHIFT, - node_info.bootmap_pages << PAGE_SHIFT); - - /* - * These should likewise go elsewhere. They pre-reserve - * the screen memory region at the start of main system - * memory. FIXME - screen RAM is not 512K! - */ - reserve_bootmem_node(pgdat, 0x02000000, 0x00080000); - -#ifdef CONFIG_BLK_DEV_INITRD - initrd_start = phys_initrd_start; - initrd_end = initrd_start + phys_initrd_size; - - /* Achimedes machines only have one node, so initrd is in node 0 */ -#ifdef CONFIG_XIP_KERNEL - /* Only reserve initrd space if it is in RAM */ - if(initrd_start && initrd_start < 0x03000000){ -#else - if(initrd_start){ -#endif - reserve_bootmem_node(pgdat, __pa(initrd_start), - initrd_end - initrd_start); - } -#endif /* CONFIG_BLK_DEV_INITRD */ - - -} - -/* - * paging_init() sets up the page tables, initialises the zone memory - * maps, and sets up the zero page, bad page and bad page tables. - */ -void __init paging_init(struct meminfo *mi) -{ - void *zero_page; - unsigned long zone_size[MAX_NR_ZONES]; - unsigned long zhole_size[MAX_NR_ZONES]; - struct bootmem_data *bdata; - pg_data_t *pgdat; - int i; - - memcpy(&meminfo, mi, sizeof(meminfo)); - - /* - * allocate the zero page. Note that we count on this going ok. - */ - zero_page = alloc_bootmem_low_pages(PAGE_SIZE); - - /* - * initialise the page tables. - */ - memtable_init(mi); - flush_tlb_all(); - - /* - * initialise the zones in node 0 (archimedes have only 1 node) - */ - - for (i = 0; i < MAX_NR_ZONES; i++) { - zone_size[i] = 0; - zhole_size[i] = 0; - } - - pgdat = NODE_DATA(0); - bdata = pgdat->bdata; - zone_size[0] = bdata->node_low_pfn - - (bdata->node_boot_start >> PAGE_SHIFT); - if (!zone_size[0]) - BUG(); - pgdat->node_mem_map = NULL; - free_area_init_node(0, pgdat, zone_size, - bdata->node_boot_start >> PAGE_SHIFT, zhole_size); - - /* - * finish off the bad pages once - * the mem_map is initialised - */ - memzero(zero_page, PAGE_SIZE); - empty_zero_page = virt_to_page(zero_page); -} - -static inline void free_area(unsigned long addr, unsigned long end, char *s) -{ - unsigned int size = (end - addr) >> 10; - - for (; addr < end; addr += PAGE_SIZE) { - struct page *page = virt_to_page(addr); - ClearPageReserved(page); - init_page_count(page); - free_page(addr); - totalram_pages++; - } - - if (size && s) - printk(KERN_INFO "Freeing %s memory: %dK\n", s, size); -} - -/* - * mem_init() marks the free areas in the mem_map and tells us how much - * memory is free. This is done after various parts of the system have - * claimed their memory after the kernel image. - */ -void __init mem_init(void) -{ - unsigned int codepages, datapages, initpages; - pg_data_t *pgdat = NODE_DATA(0); - extern int sysctl_overcommit_memory; - - - /* Note: data pages includes BSS */ -#ifdef CONFIG_XIP_KERNEL - codepages = &_endtext - &_text; - datapages = &_end - &_sdata; -#else - codepages = &_etext - &_text; - datapages = &_end - &_etext; -#endif - initpages = &__init_end - &__init_begin; - - high_memory = (void *)__va(meminfo.end); - max_mapnr = virt_to_page(high_memory) - mem_map; - - /* this will put all unused low memory onto the freelists */ - if (pgdat->node_spanned_pages != 0) - totalram_pages += free_all_bootmem_node(pgdat); - - num_physpages = meminfo.bank[0].size >> PAGE_SHIFT; - - printk(KERN_INFO "Memory: %luMB total\n", num_physpages >> (20 - PAGE_SHIFT)); - printk(KERN_NOTICE "Memory: %luKB available (%dK code, " - "%dK data, %dK init)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), - codepages >> 10, datapages >> 10, initpages >> 10); - - /* - * Turn on overcommit on tiny machines - */ - if (PAGE_SIZE >= 16384 && num_physpages <= 128) { - sysctl_overcommit_memory = OVERCOMMIT_ALWAYS; - printk("Turning on overcommit\n"); - } -} - -void free_initmem(void){ -#ifndef CONFIG_XIP_KERNEL - free_area((unsigned long)(&__init_begin), - (unsigned long)(&__init_end), - "init"); -#endif -} - -#ifdef CONFIG_BLK_DEV_INITRD - -static int keep_initrd; - -void free_initrd_mem(unsigned long start, unsigned long end) -{ -#ifdef CONFIG_XIP_KERNEL - /* Only bin initrd if it is in RAM... */ - if(!keep_initrd && start < 0x03000000) -#else - if (!keep_initrd) -#endif - free_area(start, end, "initrd"); -} - -static int __init keepinitrd_setup(char *__unused) -{ - keep_initrd = 1; - return 1; -} - -__setup("keepinitrd", keepinitrd_setup); -#endif diff --git a/trunk/arch/arm26/mm/memc.c b/trunk/arch/arm26/mm/memc.c deleted file mode 100644 index ffecd8578247..000000000000 --- a/trunk/arch/arm26/mm/memc.c +++ /dev/null @@ -1,184 +0,0 @@ -/* - * linux/arch/arm26/mm/memc.c - * - * Copyright (C) 1998-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Page table sludge for older ARM processor architectures. - */ -#include -#include -#include -#include - -#include -#include -#include -#include -#include - -#include - -#define MEMC_TABLE_SIZE (256*sizeof(unsigned long)) - -struct kmem_cache *pte_cache, *pgd_cache; -int page_nr; - -/* - * Allocate space for a page table and a MEMC table. - * Note that we place the MEMC - * table before the page directory. This means we can - * easily get to both tightly-associated data structures - * with a single pointer. - */ -static inline pgd_t *alloc_pgd_table(void) -{ - void *pg2k = kmem_cache_alloc(pgd_cache, GFP_KERNEL); - - if (pg2k) - pg2k += MEMC_TABLE_SIZE; - - return (pgd_t *)pg2k; -} - -/* - * Free a page table. this function is the counterpart to get_pgd_slow - * below, not alloc_pgd_table above. - */ -void free_pgd_slow(pgd_t *pgd) -{ - unsigned long tbl = (unsigned long)pgd; - - tbl -= MEMC_TABLE_SIZE; - - kmem_cache_free(pgd_cache, (void *)tbl); -} - -/* - * Allocate a new pgd and fill it in ready for use - * - * A new tasks pgd is completely empty (all pages !present) except for: - * - * o The machine vectors at virtual address 0x0 - * o The vmalloc region at the top of address space - * - */ -#define FIRST_KERNEL_PGD_NR (FIRST_USER_PGD_NR + USER_PTRS_PER_PGD) - -pgd_t *get_pgd_slow(struct mm_struct *mm) -{ - pgd_t *new_pgd, *init_pgd; - pmd_t *new_pmd, *init_pmd; - pte_t *new_pte, *init_pte; - - new_pgd = alloc_pgd_table(); - if (!new_pgd) - goto no_pgd; - - /* - * On ARM, first page must always be allocated since it contains - * the machine vectors. - */ - new_pmd = pmd_alloc(mm, new_pgd, 0); - if (!new_pmd) - goto no_pmd; - - new_pte = pte_alloc_map(mm, new_pmd, 0); - if (!new_pte) - goto no_pte; - - init_pgd = pgd_offset(&init_mm, 0); - init_pmd = pmd_offset(init_pgd, 0); - init_pte = pte_offset(init_pmd, 0); - - set_pte(new_pte, *init_pte); - pte_unmap(new_pte); - - /* - * the page table entries are zeroed - * when the table is created. (see the cache_ctor functions below) - * Now we need to plonk the kernel (vmalloc) area at the end of - * the address space. We copy this from the init thread, just like - * the init_pte we copied above... - */ - memcpy(new_pgd + FIRST_KERNEL_PGD_NR, init_pgd + FIRST_KERNEL_PGD_NR, - (PTRS_PER_PGD - FIRST_KERNEL_PGD_NR) * sizeof(pgd_t)); - - /* update MEMC tables */ - cpu_memc_update_all(new_pgd); - return new_pgd; - -no_pte: - pmd_free(new_pmd); -no_pmd: - free_pgd_slow(new_pgd); -no_pgd: - return NULL; -} - -/* - * No special code is required here. - */ -void setup_mm_for_reboot(char mode) -{ -} - -/* - * This contains the code to setup the memory map on an ARM2/ARM250/ARM3 - * o swapper_pg_dir = 0x0207d000 - * o kernel proper starts at 0x0208000 - * o create (allocate) a pte to contain the machine vectors - * o populate the pte (points to 0x02078000) (FIXME - is it zeroed?) - * o populate the init tasks page directory (pgd) with the new pte - * o zero the rest of the init tasks pgdir (FIXME - what about vmalloc?!) - */ -void __init memtable_init(struct meminfo *mi) -{ - pte_t *pte; - int i; - - page_nr = max_low_pfn; - - pte = alloc_bootmem_low_pages(PTRS_PER_PTE * sizeof(pte_t)); - pte[0] = mk_pte_phys(PAGE_OFFSET + SCREEN_SIZE, PAGE_READONLY); - pmd_populate(&init_mm, pmd_offset(swapper_pg_dir, 0), pte); - - for (i = 1; i < PTRS_PER_PGD; i++) - pgd_val(swapper_pg_dir[i]) = 0; -} - -void __init iotable_init(struct map_desc *io_desc) -{ - /* nothing to do */ -} - -/* - * We never have holes in the memmap - */ -void __init create_memmap_holes(struct meminfo *mi) -{ -} - -static void pte_cache_ctor(void *pte, struct kmem_cache *cache, unsigned long flags) -{ - memzero(pte, sizeof(pte_t) * PTRS_PER_PTE); -} - -static void pgd_cache_ctor(void *pgd, struct kmem_cache *cache, unsigned long flags) -{ - memzero(pgd + MEMC_TABLE_SIZE, USER_PTRS_PER_PGD * sizeof(pgd_t)); -} - -void __init pgtable_cache_init(void) -{ - pte_cache = kmem_cache_create("pte-cache", - sizeof(pte_t) * PTRS_PER_PTE, - 0, SLAB_PANIC, pte_cache_ctor); - - pgd_cache = kmem_cache_create("pgd-cache", MEMC_TABLE_SIZE + - sizeof(pgd_t) * PTRS_PER_PGD, - 0, SLAB_PANIC, pgd_cache_ctor); -} diff --git a/trunk/arch/arm26/mm/proc-funcs.S b/trunk/arch/arm26/mm/proc-funcs.S deleted file mode 100644 index f9fca524c57a..000000000000 --- a/trunk/arch/arm26/mm/proc-funcs.S +++ /dev/null @@ -1,359 +0,0 @@ -/* - * linux/arch/arm26/mm/proc-arm2,3.S - * - * Copyright (C) 1997-1999 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * MMU functions for ARM2,3 - * - * These are the low level assembler for performing cache - * and memory functions on ARM2, ARM250 and ARM3 processors. - */ -#include -#include -#include -#include -#include - -/* - * MEMC workhorse code. It's both a horse which things it's a pig. - */ -/* - * Function: cpu_memc_update_entry(pgd_t *pgd, unsigned long phys_pte, unsigned long addr) - * Params : pgd Page tables/MEMC mapping - * : phys_pte physical address, or PTE - * : addr virtual address - */ -ENTRY(cpu_memc_update_entry) - tst r1, #PAGE_PRESENT @ is the page present - orreq r1, r1, #PAGE_OLD | PAGE_CLEAN - moveq r2, #0x01f00000 - mov r3, r1, lsr #13 @ convert to physical page nr - and r3, r3, #0x3fc - adr ip, memc_phys_table_32 - ldr r3, [ip, r3] - tst r1, #PAGE_OLD | PAGE_NOT_USER - biceq r3, r3, #0x200 - tsteq r1, #PAGE_READONLY | PAGE_CLEAN - biceq r3, r3, #0x300 - mov r2, r2, lsr #15 @ virtual -> nr - orr r3, r3, r2, lsl #15 - and r2, r2, #0x300 - orr r3, r3, r2, lsl #2 - and r2, r3, #255 - sub r0, r0, #256 * 4 - str r3, [r0, r2, lsl #2] - strb r3, [r3] - movs pc, lr -/* - * Params : r0 = preserved - * : r1 = memc table base (preserved) - * : r2 = page table entry - * : r3 = preserved - * : r4 = unused - * : r5 = memc physical address translation table - * : ip = virtual address (preserved) - */ -update_pte: - mov r4, r2, lsr #13 - and r4, r4, #0x3fc - ldr r4, [r5, r4] @ covert to MEMC page - - tst r2, #PAGE_OLD | PAGE_NOT_USER @ check for MEMC read - biceq r4, r4, #0x200 - tsteq r2, #PAGE_READONLY | PAGE_CLEAN @ check for MEMC write - biceq r4, r4, #0x300 - - orr r4, r4, ip - and r2, ip, #0x01800000 - orr r4, r4, r2, lsr #13 - - and r2, r4, #255 - str r4, [r1, r2, lsl #2] - movs pc, lr - -/* - * Params : r0 = preserved - * : r1 = memc table base (preserved) - * : r2 = page table base - * : r3 = preserved - * : r4 = unused - * : r5 = memc physical address translation table - * : ip = virtual address (updated) - */ -update_pte_table: - stmfd sp!, {r0, lr} - bic r0, r2, #3 -1: ldr r2, [r0], #4 @ get entry - tst r2, #PAGE_PRESENT @ page present - blne update_pte @ process pte - add ip, ip, #32768 @ increment virt addr - ldr r2, [r0], #4 @ get entry - tst r2, #PAGE_PRESENT @ page present - blne update_pte @ process pte - add ip, ip, #32768 @ increment virt addr - ldr r2, [r0], #4 @ get entry - tst r2, #PAGE_PRESENT @ page present - blne update_pte @ process pte - add ip, ip, #32768 @ increment virt addr - ldr r2, [r0], #4 @ get entry - tst r2, #PAGE_PRESENT @ page present - blne update_pte @ process pte - add ip, ip, #32768 @ increment virt addr - tst ip, #32768 * 31 @ finished? - bne 1b - ldmfd sp!, {r0, pc}^ - -/* - * Function: cpu_memc_update_all(pgd_t *pgd) - * Params : pgd Page tables/MEMC mapping - * Notes : this is optimised for 32k pages - */ -ENTRY(cpu_memc_update_all) - stmfd sp!, {r4, r5, lr} - bl clear_tables - sub r1, r0, #256 * 4 @ start of MEMC tables - adr r5, memc_phys_table_32 @ Convert to logical page number - mov ip, #0 @ virtual address -1: ldmia r0!, {r2, r3} @ load two pgd entries - tst r2, #PAGE_PRESENT @ is pgd entry present? - addeq ip, ip, #1048576 @FIXME - PAGE_PRESENT is for PTEs technically... - blne update_pte_table - mov r2, r3 - tst r2, #PAGE_PRESENT @ is pgd entry present? - addeq ip, ip, #1048576 - blne update_pte_table - teq ip, #32 * 1048576 - bne 1b - ldmfd sp!, {r4, r5, pc}^ - -/* - * Build the table to map from physical page number to memc page number - */ - .type memc_phys_table_32, #object -memc_phys_table_32: - .irp b7, 0x00, 0x80 - .irp b6, 0x00, 0x02 - .irp b5, 0x00, 0x04 - .irp b4, 0x00, 0x01 - - .irp b3, 0x00, 0x40 - .irp b2, 0x00, 0x20 - .irp b1, 0x00, 0x10 - .irp b0, 0x00, 0x08 - .long 0x03800300 + \b7 + \b6 + \b5 + \b4 + \b3 + \b2 + \b1 + \b0 - .endr - .endr - .endr - .endr - - .endr - .endr - .endr - .endr - .size memc_phys_table_32, . - memc_phys_table_32 - -/* - * helper for cpu_memc_update_all, this clears out all - * mappings, setting them close to the top of memory, - * and inaccessible (0x01f00000). - * Params : r0 = page table pointer - */ -clear_tables: ldr r1, _arm3_set_pgd - 4 - ldr r2, [r1] - sub r1, r0, #256 * 4 @ start of MEMC tables - add r2, r1, r2, lsl #2 @ end of tables - mov r3, #0x03f00000 @ Default mapping (null mapping) - orr r3, r3, #0x00000f00 - orr r4, r3, #1 - orr r5, r3, #2 - orr ip, r3, #3 -1: stmia r1!, {r3, r4, r5, ip} - add r3, r3, #4 - add r4, r4, #4 - add r5, r5, #4 - add ip, ip, #4 - stmia r1!, {r3, r4, r5, ip} - add r3, r3, #4 - add r4, r4, #4 - add r5, r5, #4 - add ip, ip, #4 - teq r1, r2 - bne 1b - mov pc, lr - -/* - * Function: *_set_pgd(pgd_t *pgd) - * Params : pgd New page tables/MEMC mapping - * Purpose : update MEMC hardware with new mapping - */ - .word page_nr @ extern - declared in mm-memc.c -_arm3_set_pgd: mcr p15, 0, r1, c1, c0, 0 @ flush cache -_arm2_set_pgd: stmfd sp!, {lr} - ldr r1, _arm3_set_pgd - 4 - ldr r2, [r1] - sub r0, r0, #256 * 4 @ start of MEMC tables - add r1, r0, r2, lsl #2 @ end of tables -1: ldmia r0!, {r2, r3, ip, lr} - strb r2, [r2] - strb r3, [r3] - strb ip, [ip] - strb lr, [lr] - ldmia r0!, {r2, r3, ip, lr} - strb r2, [r2] - strb r3, [r3] - strb ip, [ip] - strb lr, [lr] - teq r0, r1 - bne 1b - ldmfd sp!, {pc}^ - -/* - * Function: *_proc_init (void) - * Purpose : Initialise the cache control registers - */ -_arm3_proc_init: - mov r0, #0x001f0000 - orr r0, r0, #0x0000ff00 - orr r0, r0, #0x000000ff - mcr p15, 0, r0, c3, c0 @ ARM3 Cacheable - mcr p15, 0, r0, c4, c0 @ ARM3 Updateable - mov r0, #0 - mcr p15, 0, r0, c5, c0 @ ARM3 Disruptive - mcr p15, 0, r0, c1, c0 @ ARM3 Flush - mov r0, #3 - mcr p15, 0, r0, c2, c0 @ ARM3 Control -_arm2_proc_init: - movs pc, lr - -/* - * Function: *_proc_fin (void) - * Purpose : Finalise processor (disable caches) - */ -_arm3_proc_fin: mov r0, #2 - mcr p15, 0, r0, c2, c0 -_arm2_proc_fin: orrs pc, lr, #PSR_I_BIT|PSR_F_BIT - -/* - * Function: *_xchg_1 (int new, volatile void *ptr) - * Params : new New value to store at... - * : ptr pointer to byte-wide location - * Purpose : Performs an exchange operation - * Returns : Original byte data at 'ptr' - */ -_arm2_xchg_1: mov r2, pc - orr r2, r2, #PSR_I_BIT - teqp r2, #0 - ldrb r2, [r1] - strb r0, [r1] - mov r0, r2 - movs pc, lr - -_arm3_xchg_1: swpb r0, r0, [r1] - movs pc, lr - -/* - * Function: *_xchg_4 (int new, volatile void *ptr) - * Params : new New value to store at... - * : ptr pointer to word-wide location - * Purpose : Performs an exchange operation - * Returns : Original word data at 'ptr' - */ -_arm2_xchg_4: mov r2, pc - orr r2, r2, #PSR_I_BIT - teqp r2, #0 - ldr r2, [r1] - str r0, [r1] - mov r0, r2 - movs pc, lr - -_arm3_xchg_4: swp r0, r0, [r1] - movs pc, lr - -_arm2_3_check_bugs: - bics pc, lr, #PSR_F_BIT @ Clear FIQ disable bit - -armvlsi_name: .asciz "ARM/VLSI" -_arm2_name: .asciz "ARM 2" -_arm250_name: .asciz "ARM 250" -_arm3_name: .asciz "ARM 3" - - .section ".init.text", #alloc, #execinstr -/* - * Purpose : Function pointers used to access above functions - all calls - * come through these - */ - .globl arm2_processor_functions -arm2_processor_functions: - .word _arm2_3_check_bugs - .word _arm2_proc_init - .word _arm2_proc_fin - .word _arm2_set_pgd - .word _arm2_xchg_1 - .word _arm2_xchg_4 - -cpu_arm2_info: - .long armvlsi_name - .long _arm2_name - - .globl arm250_processor_functions -arm250_processor_functions: - .word _arm2_3_check_bugs - .word _arm2_proc_init - .word _arm2_proc_fin - .word _arm2_set_pgd - .word _arm3_xchg_1 - .word _arm3_xchg_4 - -cpu_arm250_info: - .long armvlsi_name - .long _arm250_name - - .globl arm3_processor_functions -arm3_processor_functions: - .word _arm2_3_check_bugs - .word _arm3_proc_init - .word _arm3_proc_fin - .word _arm3_set_pgd - .word _arm3_xchg_1 - .word _arm3_xchg_4 - -cpu_arm3_info: - .long armvlsi_name - .long _arm3_name - -arm2_arch_name: .asciz "armv1" -arm3_arch_name: .asciz "armv2" -arm2_elf_name: .asciz "v1" -arm3_elf_name: .asciz "v2" - .align - - .section ".proc.info", #alloc, #execinstr - - .long 0x41560200 - .long 0xfffffff0 - .long arm2_arch_name - .long arm2_elf_name - .long 0 - .long cpu_arm2_info - .long arm2_processor_functions - - .long 0x41560250 - .long 0xfffffff0 - .long arm3_arch_name - .long arm3_elf_name - .long 0 - .long cpu_arm250_info - .long arm250_processor_functions - - .long 0x41560300 - .long 0xfffffff0 - .long arm3_arch_name - .long arm3_elf_name - .long 0 - .long cpu_arm3_info - .long arm3_processor_functions - diff --git a/trunk/arch/arm26/mm/small_page.c b/trunk/arch/arm26/mm/small_page.c deleted file mode 100644 index 30447106c25f..000000000000 --- a/trunk/arch/arm26/mm/small_page.c +++ /dev/null @@ -1,192 +0,0 @@ -/* - * linux/arch/arm26/mm/small_page.c - * - * Copyright (C) 1996 Russell King - * Copyright (C) 2003 Ian Molton - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Changelog: - * 26/01/1996 RMK Cleaned up various areas to make little more generic - * 07/02/1999 RMK Support added for 16K and 32K page sizes - * containing 8K blocks - * 23/05/2004 IM Fixed to use struct page->lru (thanks wli) - * - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#define PEDANTIC - -/* - * Requirement: - * We need to be able to allocate naturally aligned memory of finer - * granularity than the page size. This is typically used for the - * second level page tables on 32-bit ARMs. - * - * FIXME - this comment is *out of date* - * Theory: - * We "misuse" the Linux memory management system. We use alloc_page - * to allocate a page and then mark it as reserved. The Linux memory - * management system will then ignore the "offset", "next_hash" and - * "pprev_hash" entries in the mem_map for this page. - * - * We then use a bitstring in the "offset" field to mark which segments - * of the page are in use, and manipulate this as required during the - * allocation and freeing of these small pages. - * - * We also maintain a queue of pages being used for this purpose using - * the "next_hash" and "pprev_hash" entries of mem_map; - */ - -struct order { - struct list_head queue; - unsigned int mask; /* (1 << shift) - 1 */ - unsigned int shift; /* (1 << shift) size of page */ - unsigned int block_mask; /* nr_blocks - 1 */ - unsigned int all_used; /* (1 << nr_blocks) - 1 */ -}; - - -static struct order orders[] = { -#if PAGE_SIZE == 32768 - { LIST_HEAD_INIT(orders[0].queue), 2047, 11, 15, 0x0000ffff }, - { LIST_HEAD_INIT(orders[1].queue), 8191, 13, 3, 0x0000000f } -#else -#error unsupported page size (ARGH!) -#endif -}; - -#define USED_MAP(pg) ((pg)->index) -#define TEST_AND_CLEAR_USED(pg,off) (test_and_clear_bit(off, &USED_MAP(pg))) -#define SET_USED(pg,off) (set_bit(off, &USED_MAP(pg))) - -static DEFINE_SPINLOCK(small_page_lock); - -static unsigned long __get_small_page(int priority, struct order *order) -{ - unsigned long flags; - struct page *page; - int offset; - - do { - spin_lock_irqsave(&small_page_lock, flags); - - if (list_empty(&order->queue)) - goto need_new_page; - - page = list_entry(order->queue.next, struct page, lru); -again: -#ifdef PEDANTIC - BUG_ON(USED_MAP(page) & ~order->all_used); -#endif - offset = ffz(USED_MAP(page)); - SET_USED(page, offset); - if (USED_MAP(page) == order->all_used) - list_del_init(&page->lru); - spin_unlock_irqrestore(&small_page_lock, flags); - - return (unsigned long) page_address(page) + (offset << order->shift); - -need_new_page: - spin_unlock_irqrestore(&small_page_lock, flags); - page = alloc_page(priority); - spin_lock_irqsave(&small_page_lock, flags); - - if (list_empty(&order->queue)) { - if (!page) - goto no_page; - SetPageReserved(page); - USED_MAP(page) = 0; - list_add(&page->lru, &order->queue); - goto again; - } - - spin_unlock_irqrestore(&small_page_lock, flags); - __free_page(page); - } while (1); - -no_page: - spin_unlock_irqrestore(&small_page_lock, flags); - return 0; -} - -static void __free_small_page(unsigned long spage, struct order *order) -{ - unsigned long flags; - struct page *page; - - if (virt_addr_valid(spage)) { - page = virt_to_page(spage); - - /* - * The container-page must be marked Reserved - */ - if (!PageReserved(page) || spage & order->mask) - goto non_small; - -#ifdef PEDANTIC - BUG_ON(USED_MAP(page) & ~order->all_used); -#endif - - spage = spage >> order->shift; - spage &= order->block_mask; - - /* - * the following must be atomic wrt get_page - */ - spin_lock_irqsave(&small_page_lock, flags); - - if (USED_MAP(page) == order->all_used) - list_add(&page->lru, &order->queue); - - if (!TEST_AND_CLEAR_USED(page, spage)) - goto already_free; - - if (USED_MAP(page) == 0) - goto free_page; - - spin_unlock_irqrestore(&small_page_lock, flags); - } - return; - -free_page: - /* - * unlink the page from the small page queue and free it - */ - list_del_init(&page->lru); - spin_unlock_irqrestore(&small_page_lock, flags); - ClearPageReserved(page); - __free_page(page); - return; - -non_small: - printk("Trying to free non-small page from %p\n", __builtin_return_address(0)); - return; -already_free: - printk("Trying to free free small page from %p\n", __builtin_return_address(0)); -} - -unsigned long get_page_8k(int priority) -{ - return __get_small_page(priority, orders+1); -} - -void free_page_8k(unsigned long spage) -{ - __free_small_page(spage, orders+1); -} diff --git a/trunk/arch/arm26/nwfpe/ARM-gcc.h b/trunk/arch/arm26/nwfpe/ARM-gcc.h deleted file mode 100644 index e6598470b076..000000000000 --- a/trunk/arch/arm26/nwfpe/ARM-gcc.h +++ /dev/null @@ -1,120 +0,0 @@ -/* -------------------------------------------------------------------------------- -The macro `BITS64' can be defined to indicate that 64-bit integer types are -supported by the compiler. -------------------------------------------------------------------------------- -*/ -#define BITS64 - -/* -------------------------------------------------------------------------------- -Each of the following `typedef's defines the most convenient type that holds -integers of at least as many bits as specified. For example, `uint8' should -be the most convenient type that can hold unsigned integers of as many as -8 bits. The `flag' type must be able to hold either a 0 or 1. For most -implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed -to the same as `int'. -------------------------------------------------------------------------------- -*/ -typedef char flag; -typedef unsigned char uint8; -typedef signed char int8; -typedef int uint16; -typedef int int16; -typedef unsigned int uint32; -typedef signed int int32; -#ifdef BITS64 -typedef unsigned long long int bits64; -typedef signed long long int sbits64; -#endif - -/* -------------------------------------------------------------------------------- -Each of the following `typedef's defines a type that holds integers -of _exactly_ the number of bits specified. For instance, for most -implementation of C, `bits16' and `sbits16' should be `typedef'ed to -`unsigned short int' and `signed short int' (or `short int'), respectively. -------------------------------------------------------------------------------- -*/ -typedef unsigned char bits8; -typedef signed char sbits8; -typedef unsigned short int bits16; -typedef signed short int sbits16; -typedef unsigned int bits32; -typedef signed int sbits32; -#ifdef BITS64 -typedef unsigned long long int uint64; -typedef signed long long int int64; -#endif - -#ifdef BITS64 -/* -------------------------------------------------------------------------------- -The `LIT64' macro takes as its argument a textual integer literal and if -necessary ``marks'' the literal as having a 64-bit integer type. For -example, the Gnu C Compiler (`gcc') requires that 64-bit literals be -appended with the letters `LL' standing for `long long', which is `gcc's -name for the 64-bit integer type. Some compilers may allow `LIT64' to be -defined as the identity macro: `#define LIT64( a ) a'. -------------------------------------------------------------------------------- -*/ -#define LIT64( a ) a##LL -#endif - -/* -------------------------------------------------------------------------------- -The macro `INLINE' can be used before functions that should be inlined. If -a compiler does not support explicit inlining, this macro should be defined -to be `static'. -------------------------------------------------------------------------------- -*/ -#define INLINE extern __inline__ - - -/* For use as a GCC soft-float library we need some special function names. */ - -#ifdef __LIBFLOAT__ - -/* Some 32-bit ops can be mapped straight across by just changing the name. */ -#define float32_add __addsf3 -#define float32_sub __subsf3 -#define float32_mul __mulsf3 -#define float32_div __divsf3 -#define int32_to_float32 __floatsisf -#define float32_to_int32_round_to_zero __fixsfsi -#define float32_to_uint32_round_to_zero __fixunssfsi - -/* These ones go through the glue code. To avoid namespace pollution - we rename the internal functions too. */ -#define float32_eq ___float32_eq -#define float32_le ___float32_le -#define float32_lt ___float32_lt - -/* All the 64-bit ops have to go through the glue, so we pull the same - trick. */ -#define float64_add ___float64_add -#define float64_sub ___float64_sub -#define float64_mul ___float64_mul -#define float64_div ___float64_div -#define int32_to_float64 ___int32_to_float64 -#define float64_to_int32_round_to_zero ___float64_to_int32_round_to_zero -#define float64_to_uint32_round_to_zero ___float64_to_uint32_round_to_zero -#define float64_to_float32 ___float64_to_float32 -#define float32_to_float64 ___float32_to_float64 -#define float64_eq ___float64_eq -#define float64_le ___float64_le -#define float64_lt ___float64_lt - -#if 0 -#define float64_add __adddf3 -#define float64_sub __subdf3 -#define float64_mul __muldf3 -#define float64_div __divdf3 -#define int32_to_float64 __floatsidf -#define float64_to_int32_round_to_zero __fixdfsi -#define float64_to_uint32_round_to_zero __fixunsdfsi -#define float64_to_float32 __truncdfsf2 -#define float32_to_float64 __extendsfdf2 -#endif - -#endif diff --git a/trunk/arch/arm26/nwfpe/ChangeLog b/trunk/arch/arm26/nwfpe/ChangeLog deleted file mode 100644 index 0c580f764baf..000000000000 --- a/trunk/arch/arm26/nwfpe/ChangeLog +++ /dev/null @@ -1,83 +0,0 @@ -2002-01-19 Russell King - - * fpa11.h - Add documentation - - remove userRegisters pointer from this structure. - - add new method to obtain integer register values. - * softfloat.c - Remove float128 - * softfloat.h - Remove float128 - * softfloat-specialize - Remove float128 - - * The FPA11 structure is not a kernel-specific data structure. - It is used by users of ptrace to examine the values of the - floating point registers. Therefore, any changes to the - FPA11 structure (size or position of elements contained - within) have to be well thought out. - - * Since 128-bit float requires the FPA11 structure to change - size, it has been removed. 128-bit float is currently unused, - and needs various things to be re-worked so that we won't - overflow the available space in the task structure. - - * The changes are designed to break any patch that goes on top - of this code, so that the authors properly review their changes. - -1999-08-19 Scott Bambrough - - * fpmodule.c - Changed version number to 0.95 - * fpa11.h - modified FPA11, FPREG structures - * fpa11.c - Changes due to FPA11, FPREG structure alterations. - * fpa11_cpdo.c - Changes due to FPA11, FPREG structure alterations. - * fpa11_cpdt.c - Changes due to FPA11, FPREG structure alterations. - * fpa11_cprt.c - Changes due to FPA11, FPREG structure alterations. - * single_cpdo.c - Changes due to FPA11, FPREG structure alterations. - * double_cpdo.c - Changes due to FPA11, FPREG structure alterations. - * extended_cpdo.c - Changes due to FPA11, FPREG structure alterations. - - * I discovered several bugs. First and worst is that the kernel - passes in a pointer to the FPE's state area. This is defined - as a struct user_fp (see user.h). This pointer was cast to a - FPA11*. Unfortunately FPA11 and user_fp are of different sizes; - user_fp is smaller. This meant that the FPE scribbled on things - below its area, which is bad, as the area is in the thread_struct - embedded in the process task structure. Thus we were scribbling - over one of the most important structures in the entire OS. - - * user_fp and FPA11 have now been harmonized. Most of the changes - in the above code were dereferencing problems due to moving the - register type out of FPREG, and getting rid of the union variable - fpvalue. - - * Second I noticed resetFPA11 was not always being called for a - task. This should happen on the first floating point exception - that occurs. It is controlled by init_flag in FPA11. The - comment in the code beside init_flag state the kernel guarantees - this to be zero. Not so. I found that the kernel recycles task - structures, and that recycled ones may not have init_flag zeroed. - I couldn't even find anything that guarantees it is zeroed when - when the task structure is initially allocated. In any case - I now initialize the entire FPE state in the thread structure to - zero when allocated and recycled. See alloc_task_struct() and - flush_thread() in arch/arm/process.c. The change to - alloc_task_struct() may not be necessary, but I left it in for - completeness (better safe than sorry). - -1998-11-23 Scott Bambrough - - * README.FPE - fix typo in description of lfm/sfm instructions - * NOTES - Added file to describe known bugs/problems - * fpmodule.c - Changed version number to 0.94 - -1998-11-20 Scott Bambrough - - * README.FPE - fix description of URD, NRM instructions - * TODO - remove URD, NRM instructions from TODO list - * single_cpdo.c - implement URD, NRM - * double_cpdo.c - implement URD, NRM - * extended_cpdo.c - implement URD, NRM - -1998-11-19 Scott Bambrough - - * ChangeLog - Added this file to track changes made. - * fpa11.c - added code to initialize register types to typeNone - * fpa11_cpdt.c - fixed bug in storeExtended (typeExtended changed to - typeDouble in switch statement) diff --git a/trunk/arch/arm26/nwfpe/Makefile b/trunk/arch/arm26/nwfpe/Makefile deleted file mode 100644 index b39d34dff054..000000000000 --- a/trunk/arch/arm26/nwfpe/Makefile +++ /dev/null @@ -1,15 +0,0 @@ -# -# Copyright (C) 1998, 1999, 2001 Philip Blundell -# - -obj-y := -obj-m := -obj-n := - -obj-$(CONFIG_FPE_NWFPE) += nwfpe.o - -nwfpe-objs := fpa11.o fpa11_cpdo.o fpa11_cpdt.o fpa11_cprt.o \ - fpmodule.o fpopcode.o softfloat.o \ - single_cpdo.o double_cpdo.o extended_cpdo.o \ - entry.o - diff --git a/trunk/arch/arm26/nwfpe/double_cpdo.c b/trunk/arch/arm26/nwfpe/double_cpdo.c deleted file mode 100644 index 7f4fef0216c7..000000000000 --- a/trunk/arch/arm26/nwfpe/double_cpdo.c +++ /dev/null @@ -1,288 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.COM, 1998,1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include "fpa11.h" -#include "softfloat.h" -#include "fpopcode.h" - -float64 float64_exp(float64 Fm); -float64 float64_ln(float64 Fm); -float64 float64_sin(float64 rFm); -float64 float64_cos(float64 rFm); -float64 float64_arcsin(float64 rFm); -float64 float64_arctan(float64 rFm); -float64 float64_log(float64 rFm); -float64 float64_tan(float64 rFm); -float64 float64_arccos(float64 rFm); -float64 float64_pow(float64 rFn,float64 rFm); -float64 float64_pol(float64 rFn,float64 rFm); - -unsigned int DoubleCPDO(const unsigned int opcode) -{ - FPA11 *fpa11 = GET_FPA11(); - float64 rFm, rFn = 0; //FIXME - should be zero? - unsigned int Fd, Fm, Fn, nRc = 1; - - //printk("DoubleCPDO(0x%08x)\n",opcode); - - Fm = getFm(opcode); - if (CONSTANT_FM(opcode)) - { - rFm = getDoubleConstant(Fm); - } - else - { - switch (fpa11->fType[Fm]) - { - case typeSingle: - rFm = float32_to_float64(fpa11->fpreg[Fm].fSingle); - break; - - case typeDouble: - rFm = fpa11->fpreg[Fm].fDouble; - break; - - case typeExtended: - // !! patb - //printk("not implemented! why not?\n"); - //!! ScottB - // should never get here, if extended involved - // then other operand should be promoted then - // ExtendedCPDO called. - break; - - default: return 0; - } - } - - if (!MONADIC_INSTRUCTION(opcode)) - { - Fn = getFn(opcode); - switch (fpa11->fType[Fn]) - { - case typeSingle: - rFn = float32_to_float64(fpa11->fpreg[Fn].fSingle); - break; - - case typeDouble: - rFn = fpa11->fpreg[Fn].fDouble; - break; - - default: return 0; - } - } - - Fd = getFd(opcode); - /* !! this switch isn't optimized; better (opcode & MASK_ARITHMETIC_OPCODE)>>24, sort of */ - switch (opcode & MASK_ARITHMETIC_OPCODE) - { - /* dyadic opcodes */ - case ADF_CODE: - fpa11->fpreg[Fd].fDouble = float64_add(rFn,rFm); - break; - - case MUF_CODE: - case FML_CODE: - fpa11->fpreg[Fd].fDouble = float64_mul(rFn,rFm); - break; - - case SUF_CODE: - fpa11->fpreg[Fd].fDouble = float64_sub(rFn,rFm); - break; - - case RSF_CODE: - fpa11->fpreg[Fd].fDouble = float64_sub(rFm,rFn); - break; - - case DVF_CODE: - case FDV_CODE: - fpa11->fpreg[Fd].fDouble = float64_div(rFn,rFm); - break; - - case RDF_CODE: - case FRD_CODE: - fpa11->fpreg[Fd].fDouble = float64_div(rFm,rFn); - break; - -#if 0 - case POW_CODE: - fpa11->fpreg[Fd].fDouble = float64_pow(rFn,rFm); - break; - - case RPW_CODE: - fpa11->fpreg[Fd].fDouble = float64_pow(rFm,rFn); - break; -#endif - - case RMF_CODE: - fpa11->fpreg[Fd].fDouble = float64_rem(rFn,rFm); - break; - -#if 0 - case POL_CODE: - fpa11->fpreg[Fd].fDouble = float64_pol(rFn,rFm); - break; -#endif - - /* monadic opcodes */ - case MVF_CODE: - fpa11->fpreg[Fd].fDouble = rFm; - break; - - case MNF_CODE: - { - unsigned int *p = (unsigned int*)&rFm; - p[1] ^= 0x80000000; - fpa11->fpreg[Fd].fDouble = rFm; - } - break; - - case ABS_CODE: - { - unsigned int *p = (unsigned int*)&rFm; - p[1] &= 0x7fffffff; - fpa11->fpreg[Fd].fDouble = rFm; - } - break; - - case RND_CODE: - case URD_CODE: - fpa11->fpreg[Fd].fDouble = float64_round_to_int(rFm); - break; - - case SQT_CODE: - fpa11->fpreg[Fd].fDouble = float64_sqrt(rFm); - break; - -#if 0 - case LOG_CODE: - fpa11->fpreg[Fd].fDouble = float64_log(rFm); - break; - - case LGN_CODE: - fpa11->fpreg[Fd].fDouble = float64_ln(rFm); - break; - - case EXP_CODE: - fpa11->fpreg[Fd].fDouble = float64_exp(rFm); - break; - - case SIN_CODE: - fpa11->fpreg[Fd].fDouble = float64_sin(rFm); - break; - - case COS_CODE: - fpa11->fpreg[Fd].fDouble = float64_cos(rFm); - break; - - case TAN_CODE: - fpa11->fpreg[Fd].fDouble = float64_tan(rFm); - break; - - case ASN_CODE: - fpa11->fpreg[Fd].fDouble = float64_arcsin(rFm); - break; - - case ACS_CODE: - fpa11->fpreg[Fd].fDouble = float64_arccos(rFm); - break; - - case ATN_CODE: - fpa11->fpreg[Fd].fDouble = float64_arctan(rFm); - break; -#endif - - case NRM_CODE: - break; - - default: - { - nRc = 0; - } - } - - if (0 != nRc) fpa11->fType[Fd] = typeDouble; - return nRc; -} - -#if 0 -float64 float64_exp(float64 rFm) -{ - return rFm; -//series -} - -float64 float64_ln(float64 rFm) -{ - return rFm; -//series -} - -float64 float64_sin(float64 rFm) -{ - return rFm; -//series -} - -float64 float64_cos(float64 rFm) -{ - return rFm; - //series -} - -#if 0 -float64 float64_arcsin(float64 rFm) -{ -//series -} - -float64 float64_arctan(float64 rFm) -{ - //series -} -#endif - -float64 float64_log(float64 rFm) -{ - return float64_div(float64_ln(rFm),getDoubleConstant(7)); -} - -float64 float64_tan(float64 rFm) -{ - return float64_div(float64_sin(rFm),float64_cos(rFm)); -} - -float64 float64_arccos(float64 rFm) -{ -return rFm; - //return float64_sub(halfPi,float64_arcsin(rFm)); -} - -float64 float64_pow(float64 rFn,float64 rFm) -{ - return float64_exp(float64_mul(rFm,float64_ln(rFn))); -} - -float64 float64_pol(float64 rFn,float64 rFm) -{ - return float64_arctan(float64_div(rFn,rFm)); -} -#endif diff --git a/trunk/arch/arm26/nwfpe/entry.S b/trunk/arch/arm26/nwfpe/entry.S deleted file mode 100644 index e6312000d9f8..000000000000 --- a/trunk/arch/arm26/nwfpe/entry.S +++ /dev/null @@ -1,114 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.COM, 1998 - (c) Philip Blundell 1998-1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include - -/* This is the kernel's entry point into the floating point emulator. -It is called from the kernel with code similar to this: - - mov fp, #0 - teqp pc, #PSR_I_BIT | MODE_SVC - ldr r4, .LC2 - ldr pc, [r4] @ Call FP module USR entry point - -The kernel expects the emulator to return via one of two possible -points of return it passes to the emulator. The emulator, if -successful in its emulation, jumps to ret_from_exception and the -kernel takes care of returning control from the trap to the user code. -If the emulator is unable to emulate the instruction, it returns to -fpundefinstr and the kernel halts the user program with a core dump. - -This routine does four things: - -1) It saves SP into a variable called userRegisters. The kernel has -created a struct pt_regs on the stack and saved the user registers -into it. See /usr/include/asm/proc/ptrace.h for details. The -emulator code uses userRegisters as the base of an array of words from -which the contents of the registers can be extracted. - -2) It locates the FP emulator work area within the TSS structure and -points `fpa11' to it. - -3) It calls EmulateAll to emulate a floating point instruction. -EmulateAll returns 1 if the emulation was successful, or 0 if not. - -4) If an instruction has been emulated successfully, it looks ahead at -the next instruction. If it is a floating point instruction, it -executes the instruction, without returning to user space. In this -way it repeatedly looks ahead and executes floating point instructions -until it encounters a non floating point instruction, at which time it -returns via _fpreturn. - -This is done to reduce the effect of the trap overhead on each -floating point instructions. GCC attempts to group floating point -instructions to allow the emulator to spread the cost of the trap over -several floating point instructions. */ - - .globl nwfpe_enter -nwfpe_enter: - mov sl, sp - bl FPA11_CheckInit @ check to see if we are initialised - - ldr r5, [sp, #60] @ get contents of PC - bic r5, r5, #0xfc000003 - ldr r0, [r5, #-4] @ get actual instruction into r0 - bl EmulateAll @ emulate the instruction -1: cmp r0, #0 @ was emulation successful - beq fpundefinstr @ no, return failure - -next: -.Lx1: ldrt r6, [r5], #4 @ get the next instruction and - @ increment PC - - and r2, r6, #0x0F000000 @ test for FP insns - teq r2, #0x0C000000 - teqne r2, #0x0D000000 - teqne r2, #0x0E000000 - bne ret_from_exception @ return ok if not a fp insn - - ldr r9, [sp, #60] @ get new condition codes - and r9, r9, #0xfc000003 - orr r7, r5, r9 - str r7, [sp, #60] @ update PC copy in regs - - mov r0, r6 @ save a copy - mov r1, r9 @ fetch the condition codes - bl checkCondition @ check the condition - cmp r0, #0 @ r0 = 0 ==> condition failed - - @ if condition code failed to match, next insn - beq next @ get the next instruction; - - mov r0, r6 @ prepare for EmulateAll() - adr lr, 1b - orr lr, lr, #3 - b EmulateAll @ if r0 != 0, goto EmulateAll - -.Lret: b ret_from_exception @ let the user eat segfaults - - @ We need to be prepared for the instruction at .Lx1 to fault. - @ Emit the appropriate exception gunk to fix things up. - .section __ex_table,"a" - .align 3 - .long .Lx1 - ldr lr, [lr, $(.Lret - .Lx1)/4] - .previous diff --git a/trunk/arch/arm26/nwfpe/extended_cpdo.c b/trunk/arch/arm26/nwfpe/extended_cpdo.c deleted file mode 100644 index 331407596d91..000000000000 --- a/trunk/arch/arm26/nwfpe/extended_cpdo.c +++ /dev/null @@ -1,273 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.COM, 1998,1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include "fpa11.h" -#include "softfloat.h" -#include "fpopcode.h" - -floatx80 floatx80_exp(floatx80 Fm); -floatx80 floatx80_ln(floatx80 Fm); -floatx80 floatx80_sin(floatx80 rFm); -floatx80 floatx80_cos(floatx80 rFm); -floatx80 floatx80_arcsin(floatx80 rFm); -floatx80 floatx80_arctan(floatx80 rFm); -floatx80 floatx80_log(floatx80 rFm); -floatx80 floatx80_tan(floatx80 rFm); -floatx80 floatx80_arccos(floatx80 rFm); -floatx80 floatx80_pow(floatx80 rFn,floatx80 rFm); -floatx80 floatx80_pol(floatx80 rFn,floatx80 rFm); - -unsigned int ExtendedCPDO(const unsigned int opcode) -{ - FPA11 *fpa11 = GET_FPA11(); - floatx80 rFm, rFn; - unsigned int Fd, Fm, Fn, nRc = 1; - - //printk("ExtendedCPDO(0x%08x)\n",opcode); - - Fm = getFm(opcode); - if (CONSTANT_FM(opcode)) - { - rFm = getExtendedConstant(Fm); - } - else - { - switch (fpa11->fType[Fm]) - { - case typeSingle: - rFm = float32_to_floatx80(fpa11->fpreg[Fm].fSingle); - break; - - case typeDouble: - rFm = float64_to_floatx80(fpa11->fpreg[Fm].fDouble); - break; - - case typeExtended: - rFm = fpa11->fpreg[Fm].fExtended; - break; - - default: return 0; - } - } - - if (!MONADIC_INSTRUCTION(opcode)) - { - Fn = getFn(opcode); - switch (fpa11->fType[Fn]) - { - case typeSingle: - rFn = float32_to_floatx80(fpa11->fpreg[Fn].fSingle); - break; - - case typeDouble: - rFn = float64_to_floatx80(fpa11->fpreg[Fn].fDouble); - break; - - case typeExtended: - rFn = fpa11->fpreg[Fn].fExtended; - break; - - default: return 0; - } - } - - Fd = getFd(opcode); - switch (opcode & MASK_ARITHMETIC_OPCODE) - { - /* dyadic opcodes */ - case ADF_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_add(rFn,rFm); - break; - - case MUF_CODE: - case FML_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_mul(rFn,rFm); - break; - - case SUF_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_sub(rFn,rFm); - break; - - case RSF_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_sub(rFm,rFn); - break; - - case DVF_CODE: - case FDV_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_div(rFn,rFm); - break; - - case RDF_CODE: - case FRD_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_div(rFm,rFn); - break; - -#if 0 - case POW_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_pow(rFn,rFm); - break; - - case RPW_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_pow(rFm,rFn); - break; -#endif - - case RMF_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_rem(rFn,rFm); - break; - -#if 0 - case POL_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_pol(rFn,rFm); - break; -#endif - - /* monadic opcodes */ - case MVF_CODE: - fpa11->fpreg[Fd].fExtended = rFm; - break; - - case MNF_CODE: - rFm.high ^= 0x8000; - fpa11->fpreg[Fd].fExtended = rFm; - break; - - case ABS_CODE: - rFm.high &= 0x7fff; - fpa11->fpreg[Fd].fExtended = rFm; - break; - - case RND_CODE: - case URD_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_round_to_int(rFm); - break; - - case SQT_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_sqrt(rFm); - break; - -#if 0 - case LOG_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_log(rFm); - break; - - case LGN_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_ln(rFm); - break; - - case EXP_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_exp(rFm); - break; - - case SIN_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_sin(rFm); - break; - - case COS_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_cos(rFm); - break; - - case TAN_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_tan(rFm); - break; - - case ASN_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_arcsin(rFm); - break; - - case ACS_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_arccos(rFm); - break; - - case ATN_CODE: - fpa11->fpreg[Fd].fExtended = floatx80_arctan(rFm); - break; -#endif - - case NRM_CODE: - break; - - default: - { - nRc = 0; - } - } - - if (0 != nRc) fpa11->fType[Fd] = typeExtended; - return nRc; -} - -#if 0 -floatx80 floatx80_exp(floatx80 Fm) -{ -//series -} - -floatx80 floatx80_ln(floatx80 Fm) -{ -//series -} - -floatx80 floatx80_sin(floatx80 rFm) -{ -//series -} - -floatx80 floatx80_cos(floatx80 rFm) -{ -//series -} - -floatx80 floatx80_arcsin(floatx80 rFm) -{ -//series -} - -floatx80 floatx80_arctan(floatx80 rFm) -{ - //series -} - -floatx80 floatx80_log(floatx80 rFm) -{ - return floatx80_div(floatx80_ln(rFm),getExtendedConstant(7)); -} - -floatx80 floatx80_tan(floatx80 rFm) -{ - return floatx80_div(floatx80_sin(rFm),floatx80_cos(rFm)); -} - -floatx80 floatx80_arccos(floatx80 rFm) -{ - //return floatx80_sub(halfPi,floatx80_arcsin(rFm)); -} - -floatx80 floatx80_pow(floatx80 rFn,floatx80 rFm) -{ - return floatx80_exp(floatx80_mul(rFm,floatx80_ln(rFn))); -} - -floatx80 floatx80_pol(floatx80 rFn,floatx80 rFm) -{ - return floatx80_arctan(floatx80_div(rFn,rFm)); -} -#endif diff --git a/trunk/arch/arm26/nwfpe/fpa11.c b/trunk/arch/arm26/nwfpe/fpa11.c deleted file mode 100644 index e954540a9464..000000000000 --- a/trunk/arch/arm26/nwfpe/fpa11.c +++ /dev/null @@ -1,221 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.COM, 1998,1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include "fpa11.h" -#include "fpopcode.h" - -#include "fpmodule.h" -#include "fpmodule.inl" - -#include -#include - -/* forward declarations */ -unsigned int EmulateCPDO(const unsigned int); -unsigned int EmulateCPDT(const unsigned int); -unsigned int EmulateCPRT(const unsigned int); - -/* Reset the FPA11 chip. Called to initialize and reset the emulator. */ -void resetFPA11(void) -{ - int i; - FPA11 *fpa11 = GET_FPA11(); - - /* initialize the register type array */ - for (i=0;i<=7;i++) - { - fpa11->fType[i] = typeNone; - } - - /* FPSR: set system id to FP_EMULATOR, set AC, clear all other bits */ - fpa11->fpsr = FP_EMULATOR | BIT_AC; - - /* FPCR: set SB, AB and DA bits, clear all others */ -#if MAINTAIN_FPCR - fpa11->fpcr = MASK_RESET; -#endif -} - -void SetRoundingMode(const unsigned int opcode) -{ -#if MAINTAIN_FPCR - FPA11 *fpa11 = GET_FPA11(); - fpa11->fpcr &= ~MASK_ROUNDING_MODE; -#endif - switch (opcode & MASK_ROUNDING_MODE) - { - default: - case ROUND_TO_NEAREST: - float_rounding_mode = float_round_nearest_even; -#if MAINTAIN_FPCR - fpa11->fpcr |= ROUND_TO_NEAREST; -#endif - break; - - case ROUND_TO_PLUS_INFINITY: - float_rounding_mode = float_round_up; -#if MAINTAIN_FPCR - fpa11->fpcr |= ROUND_TO_PLUS_INFINITY; -#endif - break; - - case ROUND_TO_MINUS_INFINITY: - float_rounding_mode = float_round_down; -#if MAINTAIN_FPCR - fpa11->fpcr |= ROUND_TO_MINUS_INFINITY; -#endif - break; - - case ROUND_TO_ZERO: - float_rounding_mode = float_round_to_zero; -#if MAINTAIN_FPCR - fpa11->fpcr |= ROUND_TO_ZERO; -#endif - break; - } -} - -void SetRoundingPrecision(const unsigned int opcode) -{ -#if MAINTAIN_FPCR - FPA11 *fpa11 = GET_FPA11(); - fpa11->fpcr &= ~MASK_ROUNDING_PRECISION; -#endif - switch (opcode & MASK_ROUNDING_PRECISION) - { - case ROUND_SINGLE: - floatx80_rounding_precision = 32; -#if MAINTAIN_FPCR - fpa11->fpcr |= ROUND_SINGLE; -#endif - break; - - case ROUND_DOUBLE: - floatx80_rounding_precision = 64; -#if MAINTAIN_FPCR - fpa11->fpcr |= ROUND_DOUBLE; -#endif - break; - - case ROUND_EXTENDED: - floatx80_rounding_precision = 80; -#if MAINTAIN_FPCR - fpa11->fpcr |= ROUND_EXTENDED; -#endif - break; - - default: floatx80_rounding_precision = 80; - } -} - -void FPA11_CheckInit(void) -{ - FPA11 *fpa11 = GET_FPA11(); - if (unlikely(fpa11->initflag == 0)) - { - resetFPA11(); - SetRoundingMode(ROUND_TO_NEAREST); - SetRoundingPrecision(ROUND_EXTENDED); - fpa11->initflag = 1; - } -} - -/* Emulate the instruction in the opcode. */ -unsigned int EmulateAll(unsigned int opcode) -{ - unsigned int nRc = 1, code; - - code = opcode & 0x00000f00; - if (code == 0x00000100 || code == 0x00000200) - { - /* For coprocessor 1 or 2 (FPA11) */ - code = opcode & 0x0e000000; - if (code == 0x0e000000) - { - if (opcode & 0x00000010) - { - /* Emulate conversion opcodes. */ - /* Emulate register transfer opcodes. */ - /* Emulate comparison opcodes. */ - nRc = EmulateCPRT(opcode); - } - else - { - /* Emulate monadic arithmetic opcodes. */ - /* Emulate dyadic arithmetic opcodes. */ - nRc = EmulateCPDO(opcode); - } - } - else if (code == 0x0c000000) - { - /* Emulate load/store opcodes. */ - /* Emulate load/store multiple opcodes. */ - nRc = EmulateCPDT(opcode); - } - else - { - /* Invalid instruction detected. Return FALSE. */ - nRc = 0; - } - } - - return(nRc); -} - -#if 0 -unsigned int EmulateAll1(unsigned int opcode) -{ - switch ((opcode >> 24) & 0xf) - { - case 0xc: - case 0xd: - if ((opcode >> 20) & 0x1) - { - switch ((opcode >> 8) & 0xf) - { - case 0x1: return PerformLDF(opcode); break; - case 0x2: return PerformLFM(opcode); break; - default: return 0; - } - } - else - { - switch ((opcode >> 8) & 0xf) - { - case 0x1: return PerformSTF(opcode); break; - case 0x2: return PerformSFM(opcode); break; - default: return 0; - } - } - break; - - case 0xe: - if (opcode & 0x10) - return EmulateCPDO(opcode); - else - return EmulateCPRT(opcode); - break; - - default: return 0; - } -} -#endif - diff --git a/trunk/arch/arm26/nwfpe/fpa11.h b/trunk/arch/arm26/nwfpe/fpa11.h deleted file mode 100644 index be09902a211d..000000000000 --- a/trunk/arch/arm26/nwfpe/fpa11.h +++ /dev/null @@ -1,87 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.com, 1998-1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#ifndef __FPA11_H__ -#define __FPA11_H__ - -#define GET_FPA11() ((FPA11 *)(¤t_thread_info()->fpstate)) - -/* - * The processes registers are always at the very top of the 8K - * stack+task struct. Use the same method as 'current' uses to - * reach them. - */ -register unsigned int *user_registers asm("sl"); - -#define GET_USERREG() (user_registers) - -#include - -/* includes */ -#include "fpsr.h" /* FP control and status register definitions */ -#include "softfloat.h" - -#define typeNone 0x00 -#define typeSingle 0x01 -#define typeDouble 0x02 -#define typeExtended 0x03 - -/* - * This must be no more and no less than 12 bytes. - */ -typedef union tagFPREG { - floatx80 fExtended; - float64 fDouble; - float32 fSingle; -} FPREG; - -/* - * FPA11 device model. - * - * This structure is exported to user space. Do not re-order. - * Only add new stuff to the end, and do not change the size of - * any element. Elements of this structure are used by user - * space, and must match struct user_fp in include/asm-arm/user.h. - * We include the byte offsets below for documentation purposes. - * - * The size of this structure and FPREG are checked by fpmodule.c - * on initialisation. If the rules have been broken, NWFPE will - * not initialise. - */ -typedef struct tagFPA11 { -/* 0 */ FPREG fpreg[8]; /* 8 floating point registers */ -/* 96 */ FPSR fpsr; /* floating point status register */ -/* 100 */ FPCR fpcr; /* floating point control register */ -/* 104 */ unsigned char fType[8]; /* type of floating point value held in - floating point registers. One of none - single, double or extended. */ -/* 112 */ int initflag; /* this is special. The kernel guarantees - to set it to 0 when a thread is launched, - so we can use it to detect whether this - instance of the emulator needs to be - initialised. */ -} FPA11; - -extern void resetFPA11(void); -extern void SetRoundingMode(const unsigned int); -extern void SetRoundingPrecision(const unsigned int); - -#endif diff --git a/trunk/arch/arm26/nwfpe/fpa11.inl b/trunk/arch/arm26/nwfpe/fpa11.inl deleted file mode 100644 index 1c45cba2de66..000000000000 --- a/trunk/arch/arm26/nwfpe/fpa11.inl +++ /dev/null @@ -1,51 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.COM, 1998,1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include "fpa11.h" - -/* Read and write floating point status register */ -extern __inline__ unsigned int readFPSR(void) -{ - FPA11 *fpa11 = GET_FPA11(); - return(fpa11->fpsr); -} - -extern __inline__ void writeFPSR(FPSR reg) -{ - FPA11 *fpa11 = GET_FPA11(); - /* the sysid byte in the status register is readonly */ - fpa11->fpsr = (fpa11->fpsr & MASK_SYSID) | (reg & ~MASK_SYSID); -} - -/* Read and write floating point control register */ -extern __inline__ FPCR readFPCR(void) -{ - FPA11 *fpa11 = GET_FPA11(); - /* clear SB, AB and DA bits before returning FPCR */ - return(fpa11->fpcr & ~MASK_RFC); -} - -extern __inline__ void writeFPCR(FPCR reg) -{ - FPA11 *fpa11 = GET_FPA11(); - fpa11->fpcr &= ~MASK_WFC; /* clear SB, AB and DA bits */ - fpa11->fpcr |= (reg & MASK_WFC); /* write SB, AB and DA bits */ -} diff --git a/trunk/arch/arm26/nwfpe/fpa11_cpdo.c b/trunk/arch/arm26/nwfpe/fpa11_cpdo.c deleted file mode 100644 index 343a6b9fd520..000000000000 --- a/trunk/arch/arm26/nwfpe/fpa11_cpdo.c +++ /dev/null @@ -1,117 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.COM, 1998,1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include "fpa11.h" -#include "fpopcode.h" - -unsigned int SingleCPDO(const unsigned int opcode); -unsigned int DoubleCPDO(const unsigned int opcode); -unsigned int ExtendedCPDO(const unsigned int opcode); - -unsigned int EmulateCPDO(const unsigned int opcode) -{ - FPA11 *fpa11 = GET_FPA11(); - unsigned int Fd, nType, nDest, nRc = 1; - - //printk("EmulateCPDO(0x%08x)\n",opcode); - - /* Get the destination size. If not valid let Linux perform - an invalid instruction trap. */ - nDest = getDestinationSize(opcode); - if (typeNone == nDest) return 0; - - SetRoundingMode(opcode); - - /* Compare the size of the operands in Fn and Fm. - Choose the largest size and perform operations in that size, - in order to make use of all the precision of the operands. - If Fm is a constant, we just grab a constant of a size - matching the size of the operand in Fn. */ - if (MONADIC_INSTRUCTION(opcode)) - nType = nDest; - else - nType = fpa11->fType[getFn(opcode)]; - - if (!CONSTANT_FM(opcode)) - { - register unsigned int Fm = getFm(opcode); - if (nType < fpa11->fType[Fm]) - { - nType = fpa11->fType[Fm]; - } - } - - switch (nType) - { - case typeSingle : nRc = SingleCPDO(opcode); break; - case typeDouble : nRc = DoubleCPDO(opcode); break; - case typeExtended : nRc = ExtendedCPDO(opcode); break; - default : nRc = 0; - } - - /* If the operation succeeded, check to see if the result in the - destination register is the correct size. If not force it - to be. */ - Fd = getFd(opcode); - nType = fpa11->fType[Fd]; - if ((0 != nRc) && (nDest != nType)) - { - switch (nDest) - { - case typeSingle: - { - if (typeDouble == nType) - fpa11->fpreg[Fd].fSingle = - float64_to_float32(fpa11->fpreg[Fd].fDouble); - else - fpa11->fpreg[Fd].fSingle = - floatx80_to_float32(fpa11->fpreg[Fd].fExtended); - } - break; - - case typeDouble: - { - if (typeSingle == nType) - fpa11->fpreg[Fd].fDouble = - float32_to_float64(fpa11->fpreg[Fd].fSingle); - else - fpa11->fpreg[Fd].fDouble = - floatx80_to_float64(fpa11->fpreg[Fd].fExtended); - } - break; - - case typeExtended: - { - if (typeSingle == nType) - fpa11->fpreg[Fd].fExtended = - float32_to_floatx80(fpa11->fpreg[Fd].fSingle); - else - fpa11->fpreg[Fd].fExtended = - float64_to_floatx80(fpa11->fpreg[Fd].fDouble); - } - break; - } - - fpa11->fType[Fd] = nDest; - } - - return nRc; -} diff --git a/trunk/arch/arm26/nwfpe/fpa11_cpdt.c b/trunk/arch/arm26/nwfpe/fpa11_cpdt.c deleted file mode 100644 index e12db7c51a76..000000000000 --- a/trunk/arch/arm26/nwfpe/fpa11_cpdt.c +++ /dev/null @@ -1,368 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.com, 1998-1999 - (c) Philip Blundell, 1998 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include "fpa11.h" -#include "softfloat.h" -#include "fpopcode.h" -#include "fpmodule.h" -#include "fpmodule.inl" - -#include - -static inline -void loadSingle(const unsigned int Fn,const unsigned int *pMem) -{ - FPA11 *fpa11 = GET_FPA11(); - fpa11->fType[Fn] = typeSingle; - get_user(fpa11->fpreg[Fn].fSingle, pMem); -} - -static inline -void loadDouble(const unsigned int Fn,const unsigned int *pMem) -{ - FPA11 *fpa11 = GET_FPA11(); - unsigned int *p; - p = (unsigned int*)&fpa11->fpreg[Fn].fDouble; - fpa11->fType[Fn] = typeDouble; - get_user(p[0], &pMem[1]); - get_user(p[1], &pMem[0]); /* sign & exponent */ -} - -static inline -void loadExtended(const unsigned int Fn,const unsigned int *pMem) -{ - FPA11 *fpa11 = GET_FPA11(); - unsigned int *p; - p = (unsigned int*)&fpa11->fpreg[Fn].fExtended; - fpa11->fType[Fn] = typeExtended; - get_user(p[0], &pMem[0]); /* sign & exponent */ - get_user(p[1], &pMem[2]); /* ls bits */ - get_user(p[2], &pMem[1]); /* ms bits */ -} - -static inline -void loadMultiple(const unsigned int Fn,const unsigned int *pMem) -{ - FPA11 *fpa11 = GET_FPA11(); - register unsigned int *p; - unsigned long x; - - p = (unsigned int*)&(fpa11->fpreg[Fn]); - get_user(x, &pMem[0]); - fpa11->fType[Fn] = (x >> 14) & 0x00000003; - - switch (fpa11->fType[Fn]) - { - case typeSingle: - case typeDouble: - { - get_user(p[0], &pMem[2]); /* Single */ - get_user(p[1], &pMem[1]); /* double msw */ - p[2] = 0; /* empty */ - } - break; - - case typeExtended: - { - get_user(p[1], &pMem[2]); - get_user(p[2], &pMem[1]); /* msw */ - p[0] = (x & 0x80003fff); - } - break; - } -} - -static inline -void storeSingle(const unsigned int Fn,unsigned int *pMem) -{ - FPA11 *fpa11 = GET_FPA11(); - union - { - float32 f; - unsigned int i[1]; - } val; - - switch (fpa11->fType[Fn]) - { - case typeDouble: - val.f = float64_to_float32(fpa11->fpreg[Fn].fDouble); - break; - - case typeExtended: - val.f = floatx80_to_float32(fpa11->fpreg[Fn].fExtended); - break; - - default: val.f = fpa11->fpreg[Fn].fSingle; - } - - put_user(val.i[0], pMem); -} - -static inline -void storeDouble(const unsigned int Fn,unsigned int *pMem) -{ - FPA11 *fpa11 = GET_FPA11(); - union - { - float64 f; - unsigned int i[2]; - } val; - - switch (fpa11->fType[Fn]) - { - case typeSingle: - val.f = float32_to_float64(fpa11->fpreg[Fn].fSingle); - break; - - case typeExtended: - val.f = floatx80_to_float64(fpa11->fpreg[Fn].fExtended); - break; - - default: val.f = fpa11->fpreg[Fn].fDouble; - } - - put_user(val.i[1], &pMem[0]); /* msw */ - put_user(val.i[0], &pMem[1]); /* lsw */ -} - -static inline -void storeExtended(const unsigned int Fn,unsigned int *pMem) -{ - FPA11 *fpa11 = GET_FPA11(); - union - { - floatx80 f; - unsigned int i[3]; - } val; - - switch (fpa11->fType[Fn]) - { - case typeSingle: - val.f = float32_to_floatx80(fpa11->fpreg[Fn].fSingle); - break; - - case typeDouble: - val.f = float64_to_floatx80(fpa11->fpreg[Fn].fDouble); - break; - - default: val.f = fpa11->fpreg[Fn].fExtended; - } - - put_user(val.i[0], &pMem[0]); /* sign & exp */ - put_user(val.i[1], &pMem[2]); - put_user(val.i[2], &pMem[1]); /* msw */ -} - -static inline -void storeMultiple(const unsigned int Fn,unsigned int *pMem) -{ - FPA11 *fpa11 = GET_FPA11(); - register unsigned int nType, *p; - - p = (unsigned int*)&(fpa11->fpreg[Fn]); - nType = fpa11->fType[Fn]; - - switch (nType) - { - case typeSingle: - case typeDouble: - { - put_user(p[0], &pMem[2]); /* single */ - put_user(p[1], &pMem[1]); /* double msw */ - put_user(nType << 14, &pMem[0]); - } - break; - - case typeExtended: - { - put_user(p[2], &pMem[1]); /* msw */ - put_user(p[1], &pMem[2]); - put_user((p[0] & 0x80003fff) | (nType << 14), &pMem[0]); - } - break; - } -} - -unsigned int PerformLDF(const unsigned int opcode) -{ - unsigned int *pBase, *pAddress, *pFinal, nRc = 1, - write_back = WRITE_BACK(opcode); - - //printk("PerformLDF(0x%08x), Fd = 0x%08x\n",opcode,getFd(opcode)); - - pBase = (unsigned int*)readRegister(getRn(opcode)); - if (REG_PC == getRn(opcode)) - { - pBase += 2; - write_back = 0; - } - - pFinal = pBase; - if (BIT_UP_SET(opcode)) - pFinal += getOffset(opcode); - else - pFinal -= getOffset(opcode); - - if (PREINDEXED(opcode)) pAddress = pFinal; else pAddress = pBase; - - switch (opcode & MASK_TRANSFER_LENGTH) - { - case TRANSFER_SINGLE : loadSingle(getFd(opcode),pAddress); break; - case TRANSFER_DOUBLE : loadDouble(getFd(opcode),pAddress); break; - case TRANSFER_EXTENDED: loadExtended(getFd(opcode),pAddress); break; - default: nRc = 0; - } - - if (write_back) writeRegister(getRn(opcode),(unsigned int)pFinal); - return nRc; -} - -unsigned int PerformSTF(const unsigned int opcode) -{ - unsigned int *pBase, *pAddress, *pFinal, nRc = 1, - write_back = WRITE_BACK(opcode); - - //printk("PerformSTF(0x%08x), Fd = 0x%08x\n",opcode,getFd(opcode)); - SetRoundingMode(ROUND_TO_NEAREST); - - pBase = (unsigned int*)readRegister(getRn(opcode)); - if (REG_PC == getRn(opcode)) - { - pBase += 2; - write_back = 0; - } - - pFinal = pBase; - if (BIT_UP_SET(opcode)) - pFinal += getOffset(opcode); - else - pFinal -= getOffset(opcode); - - if (PREINDEXED(opcode)) pAddress = pFinal; else pAddress = pBase; - - switch (opcode & MASK_TRANSFER_LENGTH) - { - case TRANSFER_SINGLE : storeSingle(getFd(opcode),pAddress); break; - case TRANSFER_DOUBLE : storeDouble(getFd(opcode),pAddress); break; - case TRANSFER_EXTENDED: storeExtended(getFd(opcode),pAddress); break; - default: nRc = 0; - } - - if (write_back) writeRegister(getRn(opcode),(unsigned int)pFinal); - return nRc; -} - -unsigned int PerformLFM(const unsigned int opcode) -{ - unsigned int i, Fd, *pBase, *pAddress, *pFinal, - write_back = WRITE_BACK(opcode); - - pBase = (unsigned int*)readRegister(getRn(opcode)); - if (REG_PC == getRn(opcode)) - { - pBase += 2; - write_back = 0; - } - - pFinal = pBase; - if (BIT_UP_SET(opcode)) - pFinal += getOffset(opcode); - else - pFinal -= getOffset(opcode); - - if (PREINDEXED(opcode)) pAddress = pFinal; else pAddress = pBase; - - Fd = getFd(opcode); - for (i=getRegisterCount(opcode);i>0;i--) - { - loadMultiple(Fd,pAddress); - pAddress += 3; Fd++; - if (Fd == 8) Fd = 0; - } - - if (write_back) writeRegister(getRn(opcode),(unsigned int)pFinal); - return 1; -} - -unsigned int PerformSFM(const unsigned int opcode) -{ - unsigned int i, Fd, *pBase, *pAddress, *pFinal, - write_back = WRITE_BACK(opcode); - - pBase = (unsigned int*)readRegister(getRn(opcode)); - if (REG_PC == getRn(opcode)) - { - pBase += 2; - write_back = 0; - } - - pFinal = pBase; - if (BIT_UP_SET(opcode)) - pFinal += getOffset(opcode); - else - pFinal -= getOffset(opcode); - - if (PREINDEXED(opcode)) pAddress = pFinal; else pAddress = pBase; - - Fd = getFd(opcode); - for (i=getRegisterCount(opcode);i>0;i--) - { - storeMultiple(Fd,pAddress); - pAddress += 3; Fd++; - if (Fd == 8) Fd = 0; - } - - if (write_back) writeRegister(getRn(opcode),(unsigned int)pFinal); - return 1; -} - -#if 1 -unsigned int EmulateCPDT(const unsigned int opcode) -{ - unsigned int nRc = 0; - - //printk("EmulateCPDT(0x%08x)\n",opcode); - - if (LDF_OP(opcode)) - { - nRc = PerformLDF(opcode); - } - else if (LFM_OP(opcode)) - { - nRc = PerformLFM(opcode); - } - else if (STF_OP(opcode)) - { - nRc = PerformSTF(opcode); - } - else if (SFM_OP(opcode)) - { - nRc = PerformSFM(opcode); - } - else - { - nRc = 0; - } - - return nRc; -} -#endif diff --git a/trunk/arch/arm26/nwfpe/fpa11_cprt.c b/trunk/arch/arm26/nwfpe/fpa11_cprt.c deleted file mode 100644 index a201076c1f14..000000000000 --- a/trunk/arch/arm26/nwfpe/fpa11_cprt.c +++ /dev/null @@ -1,289 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.COM, 1998,1999 - (c) Philip Blundell, 1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include "fpa11.h" -#include "milieu.h" -#include "softfloat.h" -#include "fpopcode.h" -#include "fpa11.inl" -#include "fpmodule.h" -#include "fpmodule.inl" - -extern flag floatx80_is_nan(floatx80); -extern flag float64_is_nan( float64); -extern flag float32_is_nan( float32); - -void SetRoundingMode(const unsigned int opcode); - -unsigned int PerformFLT(const unsigned int opcode); -unsigned int PerformFIX(const unsigned int opcode); - -static unsigned int -PerformComparison(const unsigned int opcode); - -unsigned int EmulateCPRT(const unsigned int opcode) -{ - unsigned int nRc = 1; - - //printk("EmulateCPRT(0x%08x)\n",opcode); - - if (opcode & 0x800000) - { - /* This is some variant of a comparison (PerformComparison will - sort out which one). Since most of the other CPRT - instructions are oddball cases of some sort or other it makes - sense to pull this out into a fast path. */ - return PerformComparison(opcode); - } - - /* Hint to GCC that we'd like a jump table rather than a load of CMPs */ - switch ((opcode & 0x700000) >> 20) - { - case FLT_CODE >> 20: nRc = PerformFLT(opcode); break; - case FIX_CODE >> 20: nRc = PerformFIX(opcode); break; - - case WFS_CODE >> 20: writeFPSR(readRegister(getRd(opcode))); break; - case RFS_CODE >> 20: writeRegister(getRd(opcode),readFPSR()); break; - -#if 0 /* We currently have no use for the FPCR, so there's no point - in emulating it. */ - case WFC_CODE >> 20: writeFPCR(readRegister(getRd(opcode))); - case RFC_CODE >> 20: writeRegister(getRd(opcode),readFPCR()); break; -#endif - - default: nRc = 0; - } - - return nRc; -} - -unsigned int PerformFLT(const unsigned int opcode) -{ - FPA11 *fpa11 = GET_FPA11(); - - unsigned int nRc = 1; - SetRoundingMode(opcode); - - switch (opcode & MASK_ROUNDING_PRECISION) - { - case ROUND_SINGLE: - { - fpa11->fType[getFn(opcode)] = typeSingle; - fpa11->fpreg[getFn(opcode)].fSingle = - int32_to_float32(readRegister(getRd(opcode))); - } - break; - - case ROUND_DOUBLE: - { - fpa11->fType[getFn(opcode)] = typeDouble; - fpa11->fpreg[getFn(opcode)].fDouble = - int32_to_float64(readRegister(getRd(opcode))); - } - break; - - case ROUND_EXTENDED: - { - fpa11->fType[getFn(opcode)] = typeExtended; - fpa11->fpreg[getFn(opcode)].fExtended = - int32_to_floatx80(readRegister(getRd(opcode))); - } - break; - - default: nRc = 0; - } - - return nRc; -} - -unsigned int PerformFIX(const unsigned int opcode) -{ - FPA11 *fpa11 = GET_FPA11(); - unsigned int nRc = 1; - unsigned int Fn = getFm(opcode); - - SetRoundingMode(opcode); - - switch (fpa11->fType[Fn]) - { - case typeSingle: - { - writeRegister(getRd(opcode), - float32_to_int32(fpa11->fpreg[Fn].fSingle)); - } - break; - - case typeDouble: - { - writeRegister(getRd(opcode), - float64_to_int32(fpa11->fpreg[Fn].fDouble)); - } - break; - - case typeExtended: - { - writeRegister(getRd(opcode), - floatx80_to_int32(fpa11->fpreg[Fn].fExtended)); - } - break; - - default: nRc = 0; - } - - return nRc; -} - - -static unsigned int __inline__ -PerformComparisonOperation(floatx80 Fn, floatx80 Fm) -{ - unsigned int flags = 0; - - /* test for less than condition */ - if (floatx80_lt(Fn,Fm)) - { - flags |= CC_NEGATIVE; - } - - /* test for equal condition */ - if (floatx80_eq(Fn,Fm)) - { - flags |= CC_ZERO; - } - - /* test for greater than or equal condition */ - if (floatx80_lt(Fm,Fn)) - { - flags |= CC_CARRY; - } - - writeConditionCodes(flags); - return 1; -} - -/* This instruction sets the flags N, Z, C, V in the FPSR. */ - -static unsigned int PerformComparison(const unsigned int opcode) -{ - FPA11 *fpa11 = GET_FPA11(); - unsigned int Fn, Fm; - floatx80 rFn, rFm; - int e_flag = opcode & 0x400000; /* 1 if CxFE */ - int n_flag = opcode & 0x200000; /* 1 if CNxx */ - unsigned int flags = 0; - - //printk("PerformComparison(0x%08x)\n",opcode); - - Fn = getFn(opcode); - Fm = getFm(opcode); - - /* Check for unordered condition and convert all operands to 80-bit - format. - ?? Might be some mileage in avoiding this conversion if possible. - Eg, if both operands are 32-bit, detect this and do a 32-bit - comparison (cheaper than an 80-bit one). */ - switch (fpa11->fType[Fn]) - { - case typeSingle: - //printk("single.\n"); - if (float32_is_nan(fpa11->fpreg[Fn].fSingle)) - goto unordered; - rFn = float32_to_floatx80(fpa11->fpreg[Fn].fSingle); - break; - - case typeDouble: - //printk("double.\n"); - if (float64_is_nan(fpa11->fpreg[Fn].fDouble)) - goto unordered; - rFn = float64_to_floatx80(fpa11->fpreg[Fn].fDouble); - break; - - case typeExtended: - //printk("extended.\n"); - if (floatx80_is_nan(fpa11->fpreg[Fn].fExtended)) - goto unordered; - rFn = fpa11->fpreg[Fn].fExtended; - break; - - default: return 0; - } - - if (CONSTANT_FM(opcode)) - { - //printk("Fm is a constant: #%d.\n",Fm); - rFm = getExtendedConstant(Fm); - if (floatx80_is_nan(rFm)) - goto unordered; - } - else - { - //printk("Fm = r%d which contains a ",Fm); - switch (fpa11->fType[Fm]) - { - case typeSingle: - //printk("single.\n"); - if (float32_is_nan(fpa11->fpreg[Fm].fSingle)) - goto unordered; - rFm = float32_to_floatx80(fpa11->fpreg[Fm].fSingle); - break; - - case typeDouble: - //printk("double.\n"); - if (float64_is_nan(fpa11->fpreg[Fm].fDouble)) - goto unordered; - rFm = float64_to_floatx80(fpa11->fpreg[Fm].fDouble); - break; - - case typeExtended: - //printk("extended.\n"); - if (floatx80_is_nan(fpa11->fpreg[Fm].fExtended)) - goto unordered; - rFm = fpa11->fpreg[Fm].fExtended; - break; - - default: return 0; - } - } - - if (n_flag) - { - rFm.high ^= 0x8000; - } - - return PerformComparisonOperation(rFn,rFm); - - unordered: - /* ?? The FPA data sheet is pretty vague about this, in particular - about whether the non-E comparisons can ever raise exceptions. - This implementation is based on a combination of what it says in - the data sheet, observation of how the Acorn emulator actually - behaves (and how programs expect it to) and guesswork. */ - flags |= CC_OVERFLOW; - flags &= ~(CC_ZERO | CC_NEGATIVE); - - if (BIT_AC & readFPSR()) flags |= CC_CARRY; - - if (e_flag) float_raise(float_flag_invalid); - - writeConditionCodes(flags); - return 1; -} diff --git a/trunk/arch/arm26/nwfpe/fpmodule.c b/trunk/arch/arm26/nwfpe/fpmodule.c deleted file mode 100644 index a8fad92eb44f..000000000000 --- a/trunk/arch/arm26/nwfpe/fpmodule.c +++ /dev/null @@ -1,180 +0,0 @@ - -/* - NetWinder Floating Point Emulator - (c) Rebel.com, 1998-1999 - (c) Philip Blundell, 1998-1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include "fpa11.h" - -#include -#include - -/* XXX */ -#include -#include -#include -#include -#include -#include -/* XXX */ - -#include "softfloat.h" -#include "fpopcode.h" -#include "fpmodule.h" -#include "fpa11.inl" - -/* kernel symbols required for signal handling */ -typedef struct task_struct* PTASK; - -#ifdef MODULE -void fp_send_sig(unsigned long sig, PTASK p, int priv); - -MODULE_AUTHOR("Scott Bambrough "); -MODULE_DESCRIPTION("NWFPE floating point emulator"); - -#else -#define fp_send_sig send_sig -#define kern_fp_enter fp_enter - -extern char fpe_type[]; -#endif - -/* kernel function prototypes required */ -void fp_setup(void); - -/* external declarations for saved kernel symbols */ -extern void (*kern_fp_enter)(void); - -/* Original value of fp_enter from kernel before patched by fpe_init. */ -static void (*orig_fp_enter)(void); - -/* forward declarations */ -extern void nwfpe_enter(void); - -#ifdef MODULE -/* - * Return 0 if we can be unloaded. This can only happen if - * kern_fp_enter is still pointing at nwfpe_enter - */ -static int fpe_unload(void) -{ - return (kern_fp_enter == nwfpe_enter) ? 0 : 1; -} -#endif - -static int __init fpe_init(void) -{ - if (sizeof(FPA11) > sizeof(union fp_state)) { - printk(KERN_ERR "nwfpe: bad structure size\n"); - return -EINVAL; - } - - if (sizeof(FPREG) != 12) { - printk(KERN_ERR "nwfpe: bad register size\n"); - return -EINVAL; - } - -#ifdef MODULE - if (!mod_member_present(&__this_module, can_unload)) - return -EINVAL; - __this_module.can_unload = fpe_unload; -#else - if (fpe_type[0] && strcmp(fpe_type, "nwfpe")) - return 0; -#endif - - /* Display title, version and copyright information. */ - printk(KERN_WARNING "NetWinder Floating Point Emulator V0.95 " - "(c) 1998-1999 Rebel.com\n"); - - /* Save pointer to the old FP handler and then patch ourselves in */ - orig_fp_enter = kern_fp_enter; - kern_fp_enter = nwfpe_enter; - - return 0; -} - -static void __exit fpe_exit(void) -{ - /* Restore the values we saved earlier. */ - kern_fp_enter = orig_fp_enter; -} - -/* -ScottB: November 4, 1998 - -Moved this function out of softfloat-specialize into fpmodule.c. -This effectively isolates all the changes required for integrating with the -Linux kernel into fpmodule.c. Porting to NetBSD should only require modifying -fpmodule.c to integrate with the NetBSD kernel (I hope!). - -[1/1/99: Not quite true any more unfortunately. There is Linux-specific -code to access data in user space in some other source files at the -moment (grep for get_user / put_user calls). --philb] - -float_exception_flags is a global variable in SoftFloat. - -This function is called by the SoftFloat routines to raise a floating -point exception. We check the trap enable byte in the FPSR, and raise -a SIGFPE exception if necessary. If not the relevant bits in the -cumulative exceptions flag byte are set and we return. -*/ - -void float_raise(signed char flags) -{ - register unsigned int fpsr, cumulativeTraps; - -#ifdef CONFIG_DEBUG_USER - printk(KERN_DEBUG "NWFPE: %s[%d] takes exception %08x at %p from %08x\n", - current->comm, current->pid, flags, - __builtin_return_address(0), GET_USERREG()[15]); -#endif - - /* Keep SoftFloat exception flags up to date. */ - float_exception_flags |= flags; - - /* Read fpsr and initialize the cumulativeTraps. */ - fpsr = readFPSR(); - cumulativeTraps = 0; - - /* For each type of exception, the cumulative trap exception bit is only - set if the corresponding trap enable bit is not set. */ - if ((!(fpsr & BIT_IXE)) && (flags & BIT_IXC)) - cumulativeTraps |= BIT_IXC; - if ((!(fpsr & BIT_UFE)) && (flags & BIT_UFC)) - cumulativeTraps |= BIT_UFC; - if ((!(fpsr & BIT_OFE)) && (flags & BIT_OFC)) - cumulativeTraps |= BIT_OFC; - if ((!(fpsr & BIT_DZE)) && (flags & BIT_DZC)) - cumulativeTraps |= BIT_DZC; - if ((!(fpsr & BIT_IOE)) && (flags & BIT_IOC)) - cumulativeTraps |= BIT_IOC; - - /* Set the cumulative exceptions flags. */ - if (cumulativeTraps) - writeFPSR(fpsr | cumulativeTraps); - - /* Raise an exception if necessary. */ - if (fpsr & (flags << 16)) - fp_send_sig(SIGFPE, current, 1); -} - -module_init(fpe_init); -module_exit(fpe_exit); diff --git a/trunk/arch/arm26/nwfpe/fpmodule.h b/trunk/arch/arm26/nwfpe/fpmodule.h deleted file mode 100644 index f971ddd60cc1..000000000000 --- a/trunk/arch/arm26/nwfpe/fpmodule.h +++ /dev/null @@ -1,46 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.com, 1998-1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#ifndef __FPMODULE_H__ -#define __FPMODULE_H__ - - -#define REG_ORIG_R0 16 -#define REG_CPSR 15 -#define REG_PC 15 -#define REG_LR 14 -#define REG_SP 13 -#define REG_IP 12 -#define REG_FP 11 -#define REG_R10 10 -#define REG_R9 9 -#define REG_R9 9 -#define REG_R8 8 -#define REG_R7 7 -#define REG_R6 6 -#define REG_R5 5 -#define REG_R4 4 -#define REG_R3 3 -#define REG_R2 2 -#define REG_R1 1 -#define REG_R0 0 - -#endif diff --git a/trunk/arch/arm26/nwfpe/fpmodule.inl b/trunk/arch/arm26/nwfpe/fpmodule.inl deleted file mode 100644 index ef228378ffaf..000000000000 --- a/trunk/arch/arm26/nwfpe/fpmodule.inl +++ /dev/null @@ -1,84 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.COM, 1998,1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -extern __inline__ -unsigned int readRegister(const unsigned int nReg) -{ - /* Note: The CPU thinks it has dealt with the current instruction. As - a result the program counter has been advanced to the next - instruction, and points 4 bytes beyond the actual instruction - that caused the invalid instruction trap to occur. We adjust - for this in this routine. LDF/STF instructions with Rn = PC - depend on the PC being correct, as they use PC+8 in their - address calculations. */ - unsigned int *userRegisters = GET_USERREG(); - unsigned int val = userRegisters[nReg]; - if (REG_PC == nReg) val -= 4; - return val; -} - -extern __inline__ -void writeRegister(const unsigned int nReg, const unsigned int val) -{ - unsigned int *userRegisters = GET_USERREG(); - userRegisters[nReg] = val; -} - -extern __inline__ -unsigned int readCPSR(void) -{ - return(readRegister(REG_CPSR)); -} - -extern __inline__ -void writeCPSR(const unsigned int val) -{ - writeRegister(REG_CPSR,val); -} - -extern __inline__ -unsigned int readConditionCodes(void) -{ -#ifdef __FPEM_TEST__ - return(0); -#else - return(readCPSR() & CC_MASK); -#endif -} - -extern __inline__ -void writeConditionCodes(const unsigned int val) -{ - unsigned int *userRegisters = GET_USERREG(); - unsigned int rval; - /* - * Operate directly on userRegisters since - * the CPSR may be the PC register itself. - */ - rval = userRegisters[REG_CPSR] & ~CC_MASK; - userRegisters[REG_CPSR] = rval | (val & CC_MASK); -} - -extern __inline__ -unsigned int readMemoryInt(unsigned int *pMem) -{ - return *pMem; -} diff --git a/trunk/arch/arm26/nwfpe/fpopcode.c b/trunk/arch/arm26/nwfpe/fpopcode.c deleted file mode 100644 index d81ddd188322..000000000000 --- a/trunk/arch/arm26/nwfpe/fpopcode.c +++ /dev/null @@ -1,148 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.COM, 1998,1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include "fpa11.h" -#include "softfloat.h" -#include "fpopcode.h" -#include "fpsr.h" -#include "fpmodule.h" -#include "fpmodule.inl" - -const floatx80 floatx80Constant[] = { - { 0x0000, 0x0000000000000000ULL}, /* extended 0.0 */ - { 0x3fff, 0x8000000000000000ULL}, /* extended 1.0 */ - { 0x4000, 0x8000000000000000ULL}, /* extended 2.0 */ - { 0x4000, 0xc000000000000000ULL}, /* extended 3.0 */ - { 0x4001, 0x8000000000000000ULL}, /* extended 4.0 */ - { 0x4001, 0xa000000000000000ULL}, /* extended 5.0 */ - { 0x3ffe, 0x8000000000000000ULL}, /* extended 0.5 */ - { 0x4002, 0xa000000000000000ULL} /* extended 10.0 */ -}; - -const float64 float64Constant[] = { - 0x0000000000000000ULL, /* double 0.0 */ - 0x3ff0000000000000ULL, /* double 1.0 */ - 0x4000000000000000ULL, /* double 2.0 */ - 0x4008000000000000ULL, /* double 3.0 */ - 0x4010000000000000ULL, /* double 4.0 */ - 0x4014000000000000ULL, /* double 5.0 */ - 0x3fe0000000000000ULL, /* double 0.5 */ - 0x4024000000000000ULL /* double 10.0 */ -}; - -const float32 float32Constant[] = { - 0x00000000, /* single 0.0 */ - 0x3f800000, /* single 1.0 */ - 0x40000000, /* single 2.0 */ - 0x40400000, /* single 3.0 */ - 0x40800000, /* single 4.0 */ - 0x40a00000, /* single 5.0 */ - 0x3f000000, /* single 0.5 */ - 0x41200000 /* single 10.0 */ -}; - -unsigned int getTransferLength(const unsigned int opcode) -{ - unsigned int nRc; - - switch (opcode & MASK_TRANSFER_LENGTH) - { - case 0x00000000: nRc = 1; break; /* single precision */ - case 0x00008000: nRc = 2; break; /* double precision */ - case 0x00400000: nRc = 3; break; /* extended precision */ - default: nRc = 0; - } - - return(nRc); -} - -unsigned int getRegisterCount(const unsigned int opcode) -{ - unsigned int nRc; - - switch (opcode & MASK_REGISTER_COUNT) - { - case 0x00000000: nRc = 4; break; - case 0x00008000: nRc = 1; break; - case 0x00400000: nRc = 2; break; - case 0x00408000: nRc = 3; break; - default: nRc = 0; - } - - return(nRc); -} - -unsigned int getRoundingPrecision(const unsigned int opcode) -{ - unsigned int nRc; - - switch (opcode & MASK_ROUNDING_PRECISION) - { - case 0x00000000: nRc = 1; break; - case 0x00000080: nRc = 2; break; - case 0x00080000: nRc = 3; break; - default: nRc = 0; - } - - return(nRc); -} - -unsigned int getDestinationSize(const unsigned int opcode) -{ - unsigned int nRc; - - switch (opcode & MASK_DESTINATION_SIZE) - { - case 0x00000000: nRc = typeSingle; break; - case 0x00000080: nRc = typeDouble; break; - case 0x00080000: nRc = typeExtended; break; - default: nRc = typeNone; - } - - return(nRc); -} - -/* condition code lookup table - index into the table is test code: EQ, NE, ... LT, GT, AL, NV - bit position in short is condition code: NZCV */ -static const unsigned short aCC[16] = { - 0xF0F0, // EQ == Z set - 0x0F0F, // NE - 0xCCCC, // CS == C set - 0x3333, // CC - 0xFF00, // MI == N set - 0x00FF, // PL - 0xAAAA, // VS == V set - 0x5555, // VC - 0x0C0C, // HI == C set && Z clear - 0xF3F3, // LS == C clear || Z set - 0xAA55, // GE == (N==V) - 0x55AA, // LT == (N!=V) - 0x0A05, // GT == (!Z && (N==V)) - 0xF5FA, // LE == (Z || (N!=V)) - 0xFFFF, // AL always - 0 // NV -}; - -unsigned int checkCondition(const unsigned int opcode, const unsigned int ccodes) -{ - return (aCC[opcode>>28] >> (ccodes>>28)) & 1; -} diff --git a/trunk/arch/arm26/nwfpe/fpopcode.h b/trunk/arch/arm26/nwfpe/fpopcode.h deleted file mode 100644 index 13c7419262ab..000000000000 --- a/trunk/arch/arm26/nwfpe/fpopcode.h +++ /dev/null @@ -1,390 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.COM, 1998,1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#ifndef __FPOPCODE_H__ -#define __FPOPCODE_H__ - -/* -ARM Floating Point Instruction Classes -| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -|c o n d|1 1 0 P|U|u|W|L| Rn |v| Fd |0|0|0|1| o f f s e t | CPDT -|c o n d|1 1 0 P|U|w|W|L| Rn |x| Fd |0|0|0|1| o f f s e t | CPDT -| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -|c o n d|1 1 1 0|a|b|c|d|e| Fn |j| Fd |0|0|0|1|f|g|h|0|i| Fm | CPDO -|c o n d|1 1 1 0|a|b|c|L|e| Fn | Rd |0|0|0|1|f|g|h|1|i| Fm | CPRT -|c o n d|1 1 1 0|a|b|c|1|e| Fn |1|1|1|1|0|0|0|1|f|g|h|1|i| Fm | comparisons -| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - -CPDT data transfer instructions - LDF, STF, LFM, SFM - -CPDO dyadic arithmetic instructions - ADF, MUF, SUF, RSF, DVF, RDF, - POW, RPW, RMF, FML, FDV, FRD, POL - -CPDO monadic arithmetic instructions - MVF, MNF, ABS, RND, SQT, LOG, LGN, EXP, - SIN, COS, TAN, ASN, ACS, ATN, URD, NRM - -CPRT joint arithmetic/data transfer instructions - FIX (arithmetic followed by load/store) - FLT (load/store followed by arithmetic) - CMF, CNF CMFE, CNFE (comparisons) - WFS, RFS (write/read floating point status register) - WFC, RFC (write/read floating point control register) - -cond condition codes -P pre/post index bit: 0 = postindex, 1 = preindex -U up/down bit: 0 = stack grows down, 1 = stack grows up -W write back bit: 1 = update base register (Rn) -L load/store bit: 0 = store, 1 = load -Rn base register -Rd destination/source register -Fd floating point destination register -Fn floating point source register -Fm floating point source register or floating point constant - -uv transfer length (TABLE 1) -wx register count (TABLE 2) -abcd arithmetic opcode (TABLES 3 & 4) -ef destination size (rounding precision) (TABLE 5) -gh rounding mode (TABLE 6) -j dyadic/monadic bit: 0 = dyadic, 1 = monadic -i constant bit: 1 = constant (TABLE 6) -*/ - -/* -TABLE 1 -+-------------------------+---+---+---------+---------+ -| Precision | u | v | FPSR.EP | length | -+-------------------------+---+---+---------+---------+ -| Single | 0 0 | x | 1 words | -| Double | 1 1 | x | 2 words | -| Extended | 1 1 | x | 3 words | -| Packed decimal | 1 1 | 0 | 3 words | -| Expanded packed decimal | 1 1 | 1 | 4 words | -+-------------------------+---+---+---------+---------+ -Note: x = don't care -*/ - -/* -TABLE 2 -+---+---+---------------------------------+ -| w | x | Number of registers to transfer | -+---+---+---------------------------------+ -| 0 1 | 1 | -| 1 0 | 2 | -| 1 1 | 3 | -| 0 0 | 4 | -+---+---+---------------------------------+ -*/ - -/* -TABLE 3: Dyadic Floating Point Opcodes -+---+---+---+---+----------+-----------------------+-----------------------+ -| a | b | c | d | Mnemonic | Description | Operation | -+---+---+---+---+----------+-----------------------+-----------------------+ -| 0 | 0 | 0 | 0 | ADF | Add | Fd := Fn + Fm | -| 0 | 0 | 0 | 1 | MUF | Multiply | Fd := Fn * Fm | -| 0 | 0 | 1 | 0 | SUF | Subtract | Fd := Fn - Fm | -| 0 | 0 | 1 | 1 | RSF | Reverse subtract | Fd := Fm - Fn | -| 0 | 1 | 0 | 0 | DVF | Divide | Fd := Fn / Fm | -| 0 | 1 | 0 | 1 | RDF | Reverse divide | Fd := Fm / Fn | -| 0 | 1 | 1 | 0 | POW | Power | Fd := Fn ^ Fm | -| 0 | 1 | 1 | 1 | RPW | Reverse power | Fd := Fm ^ Fn | -| 1 | 0 | 0 | 0 | RMF | Remainder | Fd := IEEE rem(Fn/Fm) | -| 1 | 0 | 0 | 1 | FML | Fast Multiply | Fd := Fn * Fm | -| 1 | 0 | 1 | 0 | FDV | Fast Divide | Fd := Fn / Fm | -| 1 | 0 | 1 | 1 | FRD | Fast reverse divide | Fd := Fm / Fn | -| 1 | 1 | 0 | 0 | POL | Polar angle (ArcTan2) | Fd := arctan2(Fn,Fm) | -| 1 | 1 | 0 | 1 | | undefined instruction | trap | -| 1 | 1 | 1 | 0 | | undefined instruction | trap | -| 1 | 1 | 1 | 1 | | undefined instruction | trap | -+---+---+---+---+----------+-----------------------+-----------------------+ -Note: POW, RPW, POL are deprecated, and are available for backwards - compatibility only. -*/ - -/* -TABLE 4: Monadic Floating Point Opcodes -+---+---+---+---+----------+-----------------------+-----------------------+ -| a | b | c | d | Mnemonic | Description | Operation | -+---+---+---+---+----------+-----------------------+-----------------------+ -| 0 | 0 | 0 | 0 | MVF | Move | Fd := Fm | -| 0 | 0 | 0 | 1 | MNF | Move negated | Fd := - Fm | -| 0 | 0 | 1 | 0 | ABS | Absolute value | Fd := abs(Fm) | -| 0 | 0 | 1 | 1 | RND | Round to integer | Fd := int(Fm) | -| 0 | 1 | 0 | 0 | SQT | Square root | Fd := sqrt(Fm) | -| 0 | 1 | 0 | 1 | LOG | Log base 10 | Fd := log10(Fm) | -| 0 | 1 | 1 | 0 | LGN | Log base e | Fd := ln(Fm) | -| 0 | 1 | 1 | 1 | EXP | Exponent | Fd := e ^ Fm | -| 1 | 0 | 0 | 0 | SIN | Sine | Fd := sin(Fm) | -| 1 | 0 | 0 | 1 | COS | Cosine | Fd := cos(Fm) | -| 1 | 0 | 1 | 0 | TAN | Tangent | Fd := tan(Fm) | -| 1 | 0 | 1 | 1 | ASN | Arc Sine | Fd := arcsin(Fm) | -| 1 | 1 | 0 | 0 | ACS | Arc Cosine | Fd := arccos(Fm) | -| 1 | 1 | 0 | 1 | ATN | Arc Tangent | Fd := arctan(Fm) | -| 1 | 1 | 1 | 0 | URD | Unnormalized round | Fd := int(Fm) | -| 1 | 1 | 1 | 1 | NRM | Normalize | Fd := norm(Fm) | -+---+---+---+---+----------+-----------------------+-----------------------+ -Note: LOG, LGN, EXP, SIN, COS, TAN, ASN, ACS, ATN are deprecated, and are - available for backwards compatibility only. -*/ - -/* -TABLE 5 -+-------------------------+---+---+ -| Rounding Precision | e | f | -+-------------------------+---+---+ -| IEEE Single precision | 0 0 | -| IEEE Double precision | 0 1 | -| IEEE Extended precision | 1 0 | -| undefined (trap) | 1 1 | -+-------------------------+---+---+ -*/ - -/* -TABLE 5 -+---------------------------------+---+---+ -| Rounding Mode | g | h | -+---------------------------------+---+---+ -| Round to nearest (default) | 0 0 | -| Round toward plus infinity | 0 1 | -| Round toward negative infinity | 1 0 | -| Round toward zero | 1 1 | -+---------------------------------+---+---+ -*/ - -/* -=== -=== Definitions for load and store instructions -=== -*/ - -/* bit masks */ -#define BIT_PREINDEX 0x01000000 -#define BIT_UP 0x00800000 -#define BIT_WRITE_BACK 0x00200000 -#define BIT_LOAD 0x00100000 - -/* masks for load/store */ -#define MASK_CPDT 0x0c000000 /* data processing opcode */ -#define MASK_OFFSET 0x000000ff -#define MASK_TRANSFER_LENGTH 0x00408000 -#define MASK_REGISTER_COUNT MASK_TRANSFER_LENGTH -#define MASK_COPROCESSOR 0x00000f00 - -/* Tests for transfer length */ -#define TRANSFER_SINGLE 0x00000000 -#define TRANSFER_DOUBLE 0x00008000 -#define TRANSFER_EXTENDED 0x00400000 -#define TRANSFER_PACKED MASK_TRANSFER_LENGTH - -/* Get the coprocessor number from the opcode. */ -#define getCoprocessorNumber(opcode) ((opcode & MASK_COPROCESSOR) >> 8) - -/* Get the offset from the opcode. */ -#define getOffset(opcode) (opcode & MASK_OFFSET) - -/* Tests for specific data transfer load/store opcodes. */ -#define TEST_OPCODE(opcode,mask) (((opcode) & (mask)) == (mask)) - -#define LOAD_OP(opcode) TEST_OPCODE((opcode),MASK_CPDT | BIT_LOAD) -#define STORE_OP(opcode) ((opcode & (MASK_CPDT | BIT_LOAD)) == MASK_CPDT) - -#define LDF_OP(opcode) (LOAD_OP(opcode) && (getCoprocessorNumber(opcode) == 1)) -#define LFM_OP(opcode) (LOAD_OP(opcode) && (getCoprocessorNumber(opcode) == 2)) -#define STF_OP(opcode) (STORE_OP(opcode) && (getCoprocessorNumber(opcode) == 1)) -#define SFM_OP(opcode) (STORE_OP(opcode) && (getCoprocessorNumber(opcode) == 2)) - -#define PREINDEXED(opcode) ((opcode & BIT_PREINDEX) != 0) -#define POSTINDEXED(opcode) ((opcode & BIT_PREINDEX) == 0) -#define BIT_UP_SET(opcode) ((opcode & BIT_UP) != 0) -#define BIT_UP_CLEAR(opcode) ((opcode & BIT_DOWN) == 0) -#define WRITE_BACK(opcode) ((opcode & BIT_WRITE_BACK) != 0) -#define LOAD(opcode) ((opcode & BIT_LOAD) != 0) -#define STORE(opcode) ((opcode & BIT_LOAD) == 0) - -/* -=== -=== Definitions for arithmetic instructions -=== -*/ -/* bit masks */ -#define BIT_MONADIC 0x00008000 -#define BIT_CONSTANT 0x00000008 - -#define CONSTANT_FM(opcode) ((opcode & BIT_CONSTANT) != 0) -#define MONADIC_INSTRUCTION(opcode) ((opcode & BIT_MONADIC) != 0) - -/* instruction identification masks */ -#define MASK_CPDO 0x0e000000 /* arithmetic opcode */ -#define MASK_ARITHMETIC_OPCODE 0x00f08000 -#define MASK_DESTINATION_SIZE 0x00080080 - -/* dyadic arithmetic opcodes. */ -#define ADF_CODE 0x00000000 -#define MUF_CODE 0x00100000 -#define SUF_CODE 0x00200000 -#define RSF_CODE 0x00300000 -#define DVF_CODE 0x00400000 -#define RDF_CODE 0x00500000 -#define POW_CODE 0x00600000 -#define RPW_CODE 0x00700000 -#define RMF_CODE 0x00800000 -#define FML_CODE 0x00900000 -#define FDV_CODE 0x00a00000 -#define FRD_CODE 0x00b00000 -#define POL_CODE 0x00c00000 -/* 0x00d00000 is an invalid dyadic arithmetic opcode */ -/* 0x00e00000 is an invalid dyadic arithmetic opcode */ -/* 0x00f00000 is an invalid dyadic arithmetic opcode */ - -/* monadic arithmetic opcodes. */ -#define MVF_CODE 0x00008000 -#define MNF_CODE 0x00108000 -#define ABS_CODE 0x00208000 -#define RND_CODE 0x00308000 -#define SQT_CODE 0x00408000 -#define LOG_CODE 0x00508000 -#define LGN_CODE 0x00608000 -#define EXP_CODE 0x00708000 -#define SIN_CODE 0x00808000 -#define COS_CODE 0x00908000 -#define TAN_CODE 0x00a08000 -#define ASN_CODE 0x00b08000 -#define ACS_CODE 0x00c08000 -#define ATN_CODE 0x00d08000 -#define URD_CODE 0x00e08000 -#define NRM_CODE 0x00f08000 - -/* -=== -=== Definitions for register transfer and comparison instructions -=== -*/ - -#define MASK_CPRT 0x0e000010 /* register transfer opcode */ -#define MASK_CPRT_CODE 0x00f00000 -#define FLT_CODE 0x00000000 -#define FIX_CODE 0x00100000 -#define WFS_CODE 0x00200000 -#define RFS_CODE 0x00300000 -#define WFC_CODE 0x00400000 -#define RFC_CODE 0x00500000 -#define CMF_CODE 0x00900000 -#define CNF_CODE 0x00b00000 -#define CMFE_CODE 0x00d00000 -#define CNFE_CODE 0x00f00000 - -/* -=== -=== Common definitions -=== -*/ - -/* register masks */ -#define MASK_Rd 0x0000f000 -#define MASK_Rn 0x000f0000 -#define MASK_Fd 0x00007000 -#define MASK_Fm 0x00000007 -#define MASK_Fn 0x00070000 - -/* condition code masks */ -#define CC_MASK 0xf0000000 -#define CC_NEGATIVE 0x80000000 -#define CC_ZERO 0x40000000 -#define CC_CARRY 0x20000000 -#define CC_OVERFLOW 0x10000000 -#define CC_EQ 0x00000000 -#define CC_NE 0x10000000 -#define CC_CS 0x20000000 -#define CC_HS CC_CS -#define CC_CC 0x30000000 -#define CC_LO CC_CC -#define CC_MI 0x40000000 -#define CC_PL 0x50000000 -#define CC_VS 0x60000000 -#define CC_VC 0x70000000 -#define CC_HI 0x80000000 -#define CC_LS 0x90000000 -#define CC_GE 0xa0000000 -#define CC_LT 0xb0000000 -#define CC_GT 0xc0000000 -#define CC_LE 0xd0000000 -#define CC_AL 0xe0000000 -#define CC_NV 0xf0000000 - -/* rounding masks/values */ -#define MASK_ROUNDING_MODE 0x00000060 -#define ROUND_TO_NEAREST 0x00000000 -#define ROUND_TO_PLUS_INFINITY 0x00000020 -#define ROUND_TO_MINUS_INFINITY 0x00000040 -#define ROUND_TO_ZERO 0x00000060 - -#define MASK_ROUNDING_PRECISION 0x00080080 -#define ROUND_SINGLE 0x00000000 -#define ROUND_DOUBLE 0x00000080 -#define ROUND_EXTENDED 0x00080000 - -/* Get the condition code from the opcode. */ -#define getCondition(opcode) (opcode >> 28) - -/* Get the source register from the opcode. */ -#define getRn(opcode) ((opcode & MASK_Rn) >> 16) - -/* Get the destination floating point register from the opcode. */ -#define getFd(opcode) ((opcode & MASK_Fd) >> 12) - -/* Get the first source floating point register from the opcode. */ -#define getFn(opcode) ((opcode & MASK_Fn) >> 16) - -/* Get the second source floating point register from the opcode. */ -#define getFm(opcode) (opcode & MASK_Fm) - -/* Get the destination register from the opcode. */ -#define getRd(opcode) ((opcode & MASK_Rd) >> 12) - -/* Get the rounding mode from the opcode. */ -#define getRoundingMode(opcode) ((opcode & MASK_ROUNDING_MODE) >> 5) - -static inline const floatx80 getExtendedConstant(const unsigned int nIndex) -{ - extern const floatx80 floatx80Constant[]; - return floatx80Constant[nIndex]; -} - -static inline const float64 getDoubleConstant(const unsigned int nIndex) -{ - extern const float64 float64Constant[]; - return float64Constant[nIndex]; -} - -static inline const float32 getSingleConstant(const unsigned int nIndex) -{ - extern const float32 float32Constant[]; - return float32Constant[nIndex]; -} - -extern unsigned int getRegisterCount(const unsigned int opcode); -extern unsigned int getDestinationSize(const unsigned int opcode); - -#endif diff --git a/trunk/arch/arm26/nwfpe/fpsr.h b/trunk/arch/arm26/nwfpe/fpsr.h deleted file mode 100644 index 6dafb0f5243c..000000000000 --- a/trunk/arch/arm26/nwfpe/fpsr.h +++ /dev/null @@ -1,108 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.com, 1998-1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#ifndef __FPSR_H__ -#define __FPSR_H__ - -/* -The FPSR is a 32 bit register consisting of 4 parts, each exactly -one byte. - - SYSTEM ID - EXCEPTION TRAP ENABLE BYTE - SYSTEM CONTROL BYTE - CUMULATIVE EXCEPTION FLAGS BYTE - -The FPCR is a 32 bit register consisting of bit flags. -*/ - -/* SYSTEM ID ------------- -Note: the system id byte is read only */ - -typedef unsigned int FPSR; /* type for floating point status register */ -typedef unsigned int FPCR; /* type for floating point control register */ - -#define MASK_SYSID 0xff000000 -#define BIT_HARDWARE 0x80000000 -#define FP_EMULATOR 0x01000000 /* System ID for emulator */ -#define FP_ACCELERATOR 0x81000000 /* System ID for FPA11 */ - -/* EXCEPTION TRAP ENABLE BYTE ------------------------------ */ - -#define MASK_TRAP_ENABLE 0x00ff0000 -#define MASK_TRAP_ENABLE_STRICT 0x001f0000 -#define BIT_IXE 0x00100000 /* inexact exception enable */ -#define BIT_UFE 0x00080000 /* underflow exception enable */ -#define BIT_OFE 0x00040000 /* overflow exception enable */ -#define BIT_DZE 0x00020000 /* divide by zero exception enable */ -#define BIT_IOE 0x00010000 /* invalid operation exception enable */ - -/* SYSTEM CONTROL BYTE ----------------------- */ - -#define MASK_SYSTEM_CONTROL 0x0000ff00 -#define MASK_TRAP_STRICT 0x00001f00 - -#define BIT_AC 0x00001000 /* use alternative C-flag definition - for compares */ -#define BIT_EP 0x00000800 /* use expanded packed decimal format */ -#define BIT_SO 0x00000400 /* select synchronous operation of FPA */ -#define BIT_NE 0x00000200 /* NaN exception bit */ -#define BIT_ND 0x00000100 /* no denormalized numbers bit */ - -/* CUMULATIVE EXCEPTION FLAGS BYTE ----------------------------------- */ - -#define MASK_EXCEPTION_FLAGS 0x000000ff -#define MASK_EXCEPTION_FLAGS_STRICT 0x0000001f - -#define BIT_IXC 0x00000010 /* inexact exception flag */ -#define BIT_UFC 0x00000008 /* underflow exception flag */ -#define BIT_OFC 0x00000004 /* overfloat exception flag */ -#define BIT_DZC 0x00000002 /* divide by zero exception flag */ -#define BIT_IOC 0x00000001 /* invalid operation exception flag */ - -/* Floating Point Control Register -----------------------------------*/ - -#define BIT_RU 0x80000000 /* rounded up bit */ -#define BIT_IE 0x10000000 /* inexact bit */ -#define BIT_MO 0x08000000 /* mantissa overflow bit */ -#define BIT_EO 0x04000000 /* exponent overflow bit */ -#define BIT_SB 0x00000800 /* store bounce */ -#define BIT_AB 0x00000400 /* arithmetic bounce */ -#define BIT_RE 0x00000200 /* rounding exception */ -#define BIT_DA 0x00000100 /* disable FPA */ - -#define MASK_OP 0x00f08010 /* AU operation code */ -#define MASK_PR 0x00080080 /* AU precision */ -#define MASK_S1 0x00070000 /* AU source register 1 */ -#define MASK_S2 0x00000007 /* AU source register 2 */ -#define MASK_DS 0x00007000 /* AU destination register */ -#define MASK_RM 0x00000060 /* AU rounding mode */ -#define MASK_ALU 0x9cfff2ff /* only ALU can write these bits */ -#define MASK_RESET 0x00000d00 /* bits set on reset, all others cleared */ -#define MASK_WFC MASK_RESET -#define MASK_RFC ~MASK_RESET - -#endif diff --git a/trunk/arch/arm26/nwfpe/milieu.h b/trunk/arch/arm26/nwfpe/milieu.h deleted file mode 100644 index a3892ab2dca4..000000000000 --- a/trunk/arch/arm26/nwfpe/milieu.h +++ /dev/null @@ -1,48 +0,0 @@ - -/* -=============================================================================== - -This C header file is part of the SoftFloat IEC/IEEE Floating-point -Arithmetic Package, Release 2. - -Written by John R. Hauser. This work was made possible in part by the -International Computer Science Institute, located at Suite 600, 1947 Center -Street, Berkeley, California 94704. Funding was partially provided by the -National Science Foundation under grant MIP-9311980. The original version -of this code was written as part of a project to build a fixed-point vector -processor in collaboration with the University of California at Berkeley, -overseen by Profs. Nelson Morgan and John Wawrzynek. More information -is available through the Web page `http://HTTP.CS.Berkeley.EDU/~jhauser/ -arithmetic/softfloat.html'. - -THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort -has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT -TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO -PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY -AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE. - -Derivative works are acceptable, even for commercial purposes, so long as -(1) they include prominent notice that the work is derivative, and (2) they -include prominent notice akin to these three paragraphs for those parts of -this code that are retained. - -=============================================================================== -*/ - -/* -------------------------------------------------------------------------------- -Include common integer types and flags. -------------------------------------------------------------------------------- -*/ -#include "ARM-gcc.h" - -/* -------------------------------------------------------------------------------- -Symbolic Boolean literals. -------------------------------------------------------------------------------- -*/ -enum { - FALSE = 0, - TRUE = 1 -}; - diff --git a/trunk/arch/arm26/nwfpe/single_cpdo.c b/trunk/arch/arm26/nwfpe/single_cpdo.c deleted file mode 100644 index 5cdcddbb8999..000000000000 --- a/trunk/arch/arm26/nwfpe/single_cpdo.c +++ /dev/null @@ -1,255 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.COM, 1998,1999 - - Direct questions, comments to Scott Bambrough - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include "fpa11.h" -#include "softfloat.h" -#include "fpopcode.h" - -float32 float32_exp(float32 Fm); -float32 float32_ln(float32 Fm); -float32 float32_sin(float32 rFm); -float32 float32_cos(float32 rFm); -float32 float32_arcsin(float32 rFm); -float32 float32_arctan(float32 rFm); -float32 float32_log(float32 rFm); -float32 float32_tan(float32 rFm); -float32 float32_arccos(float32 rFm); -float32 float32_pow(float32 rFn,float32 rFm); -float32 float32_pol(float32 rFn,float32 rFm); - -unsigned int SingleCPDO(const unsigned int opcode) -{ - FPA11 *fpa11 = GET_FPA11(); - float32 rFm, rFn = 0; //FIXME - should be zero? - unsigned int Fd, Fm, Fn, nRc = 1; - - Fm = getFm(opcode); - if (CONSTANT_FM(opcode)) - { - rFm = getSingleConstant(Fm); - } - else - { - switch (fpa11->fType[Fm]) - { - case typeSingle: - rFm = fpa11->fpreg[Fm].fSingle; - break; - - default: return 0; - } - } - - if (!MONADIC_INSTRUCTION(opcode)) - { - Fn = getFn(opcode); - switch (fpa11->fType[Fn]) - { - case typeSingle: - rFn = fpa11->fpreg[Fn].fSingle; - break; - - default: return 0; - } - } - - Fd = getFd(opcode); - switch (opcode & MASK_ARITHMETIC_OPCODE) - { - /* dyadic opcodes */ - case ADF_CODE: - fpa11->fpreg[Fd].fSingle = float32_add(rFn,rFm); - break; - - case MUF_CODE: - case FML_CODE: - fpa11->fpreg[Fd].fSingle = float32_mul(rFn,rFm); - break; - - case SUF_CODE: - fpa11->fpreg[Fd].fSingle = float32_sub(rFn,rFm); - break; - - case RSF_CODE: - fpa11->fpreg[Fd].fSingle = float32_sub(rFm,rFn); - break; - - case DVF_CODE: - case FDV_CODE: - fpa11->fpreg[Fd].fSingle = float32_div(rFn,rFm); - break; - - case RDF_CODE: - case FRD_CODE: - fpa11->fpreg[Fd].fSingle = float32_div(rFm,rFn); - break; - -#if 0 - case POW_CODE: - fpa11->fpreg[Fd].fSingle = float32_pow(rFn,rFm); - break; - - case RPW_CODE: - fpa11->fpreg[Fd].fSingle = float32_pow(rFm,rFn); - break; -#endif - - case RMF_CODE: - fpa11->fpreg[Fd].fSingle = float32_rem(rFn,rFm); - break; - -#if 0 - case POL_CODE: - fpa11->fpreg[Fd].fSingle = float32_pol(rFn,rFm); - break; -#endif - - /* monadic opcodes */ - case MVF_CODE: - fpa11->fpreg[Fd].fSingle = rFm; - break; - - case MNF_CODE: - rFm ^= 0x80000000; - fpa11->fpreg[Fd].fSingle = rFm; - break; - - case ABS_CODE: - rFm &= 0x7fffffff; - fpa11->fpreg[Fd].fSingle = rFm; - break; - - case RND_CODE: - case URD_CODE: - fpa11->fpreg[Fd].fSingle = float32_round_to_int(rFm); - break; - - case SQT_CODE: - fpa11->fpreg[Fd].fSingle = float32_sqrt(rFm); - break; - -#if 0 - case LOG_CODE: - fpa11->fpreg[Fd].fSingle = float32_log(rFm); - break; - - case LGN_CODE: - fpa11->fpreg[Fd].fSingle = float32_ln(rFm); - break; - - case EXP_CODE: - fpa11->fpreg[Fd].fSingle = float32_exp(rFm); - break; - - case SIN_CODE: - fpa11->fpreg[Fd].fSingle = float32_sin(rFm); - break; - - case COS_CODE: - fpa11->fpreg[Fd].fSingle = float32_cos(rFm); - break; - - case TAN_CODE: - fpa11->fpreg[Fd].fSingle = float32_tan(rFm); - break; - - case ASN_CODE: - fpa11->fpreg[Fd].fSingle = float32_arcsin(rFm); - break; - - case ACS_CODE: - fpa11->fpreg[Fd].fSingle = float32_arccos(rFm); - break; - - case ATN_CODE: - fpa11->fpreg[Fd].fSingle = float32_arctan(rFm); - break; -#endif - - case NRM_CODE: - break; - - default: - { - nRc = 0; - } - } - - if (0 != nRc) fpa11->fType[Fd] = typeSingle; - return nRc; -} - -#if 0 -float32 float32_exp(float32 Fm) -{ -//series -} - -float32 float32_ln(float32 Fm) -{ -//series -} - -float32 float32_sin(float32 rFm) -{ -//series -} - -float32 float32_cos(float32 rFm) -{ -//series -} - -float32 float32_arcsin(float32 rFm) -{ -//series -} - -float32 float32_arctan(float32 rFm) -{ - //series -} - -float32 float32_arccos(float32 rFm) -{ - //return float32_sub(halfPi,float32_arcsin(rFm)); -} - -float32 float32_log(float32 rFm) -{ - return float32_div(float32_ln(rFm),getSingleConstant(7)); -} - -float32 float32_tan(float32 rFm) -{ - return float32_div(float32_sin(rFm),float32_cos(rFm)); -} - -float32 float32_pow(float32 rFn,float32 rFm) -{ - return float32_exp(float32_mul(rFm,float32_ln(rFn))); -} - -float32 float32_pol(float32 rFn,float32 rFm) -{ - return float32_arctan(float32_div(rFn,rFm)); -} -#endif diff --git a/trunk/arch/arm26/nwfpe/softfloat-macros b/trunk/arch/arm26/nwfpe/softfloat-macros deleted file mode 100644 index 5469989f2c5e..000000000000 --- a/trunk/arch/arm26/nwfpe/softfloat-macros +++ /dev/null @@ -1,740 +0,0 @@ - -/* -=============================================================================== - -This C source fragment is part of the SoftFloat IEC/IEEE Floating-point -Arithmetic Package, Release 2. - -Written by John R. Hauser. This work was made possible in part by the -International Computer Science Institute, located at Suite 600, 1947 Center -Street, Berkeley, California 94704. Funding was partially provided by the -National Science Foundation under grant MIP-9311980. The original version -of this code was written as part of a project to build a fixed-point vector -processor in collaboration with the University of California at Berkeley, -overseen by Profs. Nelson Morgan and John Wawrzynek. More information -is available through the web page `http://HTTP.CS.Berkeley.EDU/~jhauser/ -arithmetic/softfloat.html'. - -THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort -has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT -TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO -PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY -AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE. - -Derivative works are acceptable, even for commercial purposes, so long as -(1) they include prominent notice that the work is derivative, and (2) they -include prominent notice akin to these three paragraphs for those parts of -this code that are retained. - -=============================================================================== -*/ - -/* -------------------------------------------------------------------------------- -Shifts `a' right by the number of bits given in `count'. If any nonzero -bits are shifted off, they are ``jammed'' into the least significant bit of -the result by setting the least significant bit to 1. The value of `count' -can be arbitrarily large; in particular, if `count' is greater than 32, the -result will be either 0 or 1, depending on whether `a' is zero or nonzero. -The result is stored in the location pointed to by `zPtr'. -------------------------------------------------------------------------------- -*/ -INLINE void shift32RightJamming( bits32 a, int16 count, bits32 *zPtr ) -{ - bits32 z; - if ( count == 0 ) { - z = a; - } - else if ( count < 32 ) { - z = ( a>>count ) | ( ( a<<( ( - count ) & 31 ) ) != 0 ); - } - else { - z = ( a != 0 ); - } - *zPtr = z; -} - -/* -------------------------------------------------------------------------------- -Shifts `a' right by the number of bits given in `count'. If any nonzero -bits are shifted off, they are ``jammed'' into the least significant bit of -the result by setting the least significant bit to 1. The value of `count' -can be arbitrarily large; in particular, if `count' is greater than 64, the -result will be either 0 or 1, depending on whether `a' is zero or nonzero. -The result is stored in the location pointed to by `zPtr'. -------------------------------------------------------------------------------- -*/ -INLINE void shift64RightJamming( bits64 a, int16 count, bits64 *zPtr ) -{ - bits64 z; - - __asm__("@shift64RightJamming -- start"); - if ( count == 0 ) { - z = a; - } - else if ( count < 64 ) { - z = ( a>>count ) | ( ( a<<( ( - count ) & 63 ) ) != 0 ); - } - else { - z = ( a != 0 ); - } - __asm__("@shift64RightJamming -- end"); - *zPtr = z; -} - -/* -------------------------------------------------------------------------------- -Shifts the 128-bit value formed by concatenating `a0' and `a1' right by 64 -_plus_ the number of bits given in `count'. The shifted result is at most -64 nonzero bits; this is stored at the location pointed to by `z0Ptr'. The -bits shifted off form a second 64-bit result as follows: The _last_ bit -shifted off is the most-significant bit of the extra result, and the other -63 bits of the extra result are all zero if and only if _all_but_the_last_ -bits shifted off were all zero. This extra result is stored in the location -pointed to by `z1Ptr'. The value of `count' can be arbitrarily large. - (This routine makes more sense if `a0' and `a1' are considered to form a -fixed-point value with binary point between `a0' and `a1'. This fixed-point -value is shifted right by the number of bits given in `count', and the -integer part of the result is returned at the location pointed to by -`z0Ptr'. The fractional part of the result may be slightly corrupted as -described above, and is returned at the location pointed to by `z1Ptr'.) -------------------------------------------------------------------------------- -*/ -INLINE void - shift64ExtraRightJamming( - bits64 a0, bits64 a1, int16 count, bits64 *z0Ptr, bits64 *z1Ptr ) -{ - bits64 z0, z1; - int8 negCount = ( - count ) & 63; - - if ( count == 0 ) { - z1 = a1; - z0 = a0; - } - else if ( count < 64 ) { - z1 = ( a0<>count; - } - else { - if ( count == 64 ) { - z1 = a0 | ( a1 != 0 ); - } - else { - z1 = ( ( a0 | a1 ) != 0 ); - } - z0 = 0; - } - *z1Ptr = z1; - *z0Ptr = z0; - -} - -/* -------------------------------------------------------------------------------- -Shifts the 128-bit value formed by concatenating `a0' and `a1' right by the -number of bits given in `count'. Any bits shifted off are lost. The value -of `count' can be arbitrarily large; in particular, if `count' is greater -than 128, the result will be 0. The result is broken into two 64-bit pieces -which are stored at the locations pointed to by `z0Ptr' and `z1Ptr'. -------------------------------------------------------------------------------- -*/ -INLINE void - shift128Right( - bits64 a0, bits64 a1, int16 count, bits64 *z0Ptr, bits64 *z1Ptr ) -{ - bits64 z0, z1; - int8 negCount = ( - count ) & 63; - - if ( count == 0 ) { - z1 = a1; - z0 = a0; - } - else if ( count < 64 ) { - z1 = ( a0<>count ); - z0 = a0>>count; - } - else { - z1 = ( count < 64 ) ? ( a0>>( count & 63 ) ) : 0; - z0 = 0; - } - *z1Ptr = z1; - *z0Ptr = z0; - -} - -/* -------------------------------------------------------------------------------- -Shifts the 128-bit value formed by concatenating `a0' and `a1' right by the -number of bits given in `count'. If any nonzero bits are shifted off, they -are ``jammed'' into the least significant bit of the result by setting the -least significant bit to 1. The value of `count' can be arbitrarily large; -in particular, if `count' is greater than 128, the result will be either 0 -or 1, depending on whether the concatenation of `a0' and `a1' is zero or -nonzero. The result is broken into two 64-bit pieces which are stored at -the locations pointed to by `z0Ptr' and `z1Ptr'. -------------------------------------------------------------------------------- -*/ -INLINE void - shift128RightJamming( - bits64 a0, bits64 a1, int16 count, bits64 *z0Ptr, bits64 *z1Ptr ) -{ - bits64 z0, z1; - int8 negCount = ( - count ) & 63; - - if ( count == 0 ) { - z1 = a1; - z0 = a0; - } - else if ( count < 64 ) { - z1 = ( a0<>count ) | ( ( a1<>count; - } - else { - if ( count == 64 ) { - z1 = a0 | ( a1 != 0 ); - } - else if ( count < 128 ) { - z1 = ( a0>>( count & 63 ) ) | ( ( ( a0<>count ); - z0 = a0>>count; - } - else { - if ( count == 64 ) { - z2 = a1; - z1 = a0; - } - else { - a2 |= a1; - if ( count < 128 ) { - z2 = a0<>( count & 63 ); - } - else { - z2 = ( count == 128 ) ? a0 : ( a0 != 0 ); - z1 = 0; - } - } - z0 = 0; - } - z2 |= ( a2 != 0 ); - } - *z2Ptr = z2; - *z1Ptr = z1; - *z0Ptr = z0; - -} - -/* -------------------------------------------------------------------------------- -Shifts the 128-bit value formed by concatenating `a0' and `a1' left by the -number of bits given in `count'. Any bits shifted off are lost. The value -of `count' must be less than 64. The result is broken into two 64-bit -pieces which are stored at the locations pointed to by `z0Ptr' and `z1Ptr'. -------------------------------------------------------------------------------- -*/ -INLINE void - shortShift128Left( - bits64 a0, bits64 a1, int16 count, bits64 *z0Ptr, bits64 *z1Ptr ) -{ - - *z1Ptr = a1<>( ( - count ) & 63 ) ); - -} - -/* -------------------------------------------------------------------------------- -Shifts the 192-bit value formed by concatenating `a0', `a1', and `a2' left -by the number of bits given in `count'. Any bits shifted off are lost. -The value of `count' must be less than 64. The result is broken into three -64-bit pieces which are stored at the locations pointed to by `z0Ptr', -`z1Ptr', and `z2Ptr'. -------------------------------------------------------------------------------- -*/ -INLINE void - shortShift192Left( - bits64 a0, - bits64 a1, - bits64 a2, - int16 count, - bits64 *z0Ptr, - bits64 *z1Ptr, - bits64 *z2Ptr - ) -{ - bits64 z0, z1, z2; - int8 negCount; - - z2 = a2<>negCount; - z0 |= a1>>negCount; - } - *z2Ptr = z2; - *z1Ptr = z1; - *z0Ptr = z0; - -} - -/* -------------------------------------------------------------------------------- -Adds the 128-bit value formed by concatenating `a0' and `a1' to the 128-bit -value formed by concatenating `b0' and `b1'. Addition is modulo 2^128, so -any carry out is lost. The result is broken into two 64-bit pieces which -are stored at the locations pointed to by `z0Ptr' and `z1Ptr'. -------------------------------------------------------------------------------- -*/ -INLINE void - add128( - bits64 a0, bits64 a1, bits64 b0, bits64 b1, bits64 *z0Ptr, bits64 *z1Ptr ) -{ - bits64 z1; - - z1 = a1 + b1; - *z1Ptr = z1; - *z0Ptr = a0 + b0 + ( z1 < a1 ); - -} - -/* -------------------------------------------------------------------------------- -Adds the 192-bit value formed by concatenating `a0', `a1', and `a2' to the -192-bit value formed by concatenating `b0', `b1', and `b2'. Addition is -modulo 2^192, so any carry out is lost. The result is broken into three -64-bit pieces which are stored at the locations pointed to by `z0Ptr', -`z1Ptr', and `z2Ptr'. -------------------------------------------------------------------------------- -*/ -INLINE void - add192( - bits64 a0, - bits64 a1, - bits64 a2, - bits64 b0, - bits64 b1, - bits64 b2, - bits64 *z0Ptr, - bits64 *z1Ptr, - bits64 *z2Ptr - ) -{ - bits64 z0, z1, z2; - int8 carry0, carry1; - - z2 = a2 + b2; - carry1 = ( z2 < a2 ); - z1 = a1 + b1; - carry0 = ( z1 < a1 ); - z0 = a0 + b0; - z1 += carry1; - z0 += ( z1 < carry1 ); - z0 += carry0; - *z2Ptr = z2; - *z1Ptr = z1; - *z0Ptr = z0; - -} - -/* -------------------------------------------------------------------------------- -Subtracts the 128-bit value formed by concatenating `b0' and `b1' from the -128-bit value formed by concatenating `a0' and `a1'. Subtraction is modulo -2^128, so any borrow out (carry out) is lost. The result is broken into two -64-bit pieces which are stored at the locations pointed to by `z0Ptr' and -`z1Ptr'. -------------------------------------------------------------------------------- -*/ -INLINE void - sub128( - bits64 a0, bits64 a1, bits64 b0, bits64 b1, bits64 *z0Ptr, bits64 *z1Ptr ) -{ - - *z1Ptr = a1 - b1; - *z0Ptr = a0 - b0 - ( a1 < b1 ); - -} - -/* -------------------------------------------------------------------------------- -Subtracts the 192-bit value formed by concatenating `b0', `b1', and `b2' -from the 192-bit value formed by concatenating `a0', `a1', and `a2'. -Subtraction is modulo 2^192, so any borrow out (carry out) is lost. The -result is broken into three 64-bit pieces which are stored at the locations -pointed to by `z0Ptr', `z1Ptr', and `z2Ptr'. -------------------------------------------------------------------------------- -*/ -INLINE void - sub192( - bits64 a0, - bits64 a1, - bits64 a2, - bits64 b0, - bits64 b1, - bits64 b2, - bits64 *z0Ptr, - bits64 *z1Ptr, - bits64 *z2Ptr - ) -{ - bits64 z0, z1, z2; - int8 borrow0, borrow1; - - z2 = a2 - b2; - borrow1 = ( a2 < b2 ); - z1 = a1 - b1; - borrow0 = ( a1 < b1 ); - z0 = a0 - b0; - z0 -= ( z1 < borrow1 ); - z1 -= borrow1; - z0 -= borrow0; - *z2Ptr = z2; - *z1Ptr = z1; - *z0Ptr = z0; - -} - -/* -------------------------------------------------------------------------------- -Multiplies `a' by `b' to obtain a 128-bit product. The product is broken -into two 64-bit pieces which are stored at the locations pointed to by -`z0Ptr' and `z1Ptr'. -------------------------------------------------------------------------------- -*/ -INLINE void mul64To128( bits64 a, bits64 b, bits64 *z0Ptr, bits64 *z1Ptr ) -{ - bits32 aHigh, aLow, bHigh, bLow; - bits64 z0, zMiddleA, zMiddleB, z1; - - aLow = a; - aHigh = a>>32; - bLow = b; - bHigh = b>>32; - z1 = ( (bits64) aLow ) * bLow; - zMiddleA = ( (bits64) aLow ) * bHigh; - zMiddleB = ( (bits64) aHigh ) * bLow; - z0 = ( (bits64) aHigh ) * bHigh; - zMiddleA += zMiddleB; - z0 += ( ( (bits64) ( zMiddleA < zMiddleB ) )<<32 ) + ( zMiddleA>>32 ); - zMiddleA <<= 32; - z1 += zMiddleA; - z0 += ( z1 < zMiddleA ); - *z1Ptr = z1; - *z0Ptr = z0; - -} - -/* -------------------------------------------------------------------------------- -Multiplies the 128-bit value formed by concatenating `a0' and `a1' by `b' to -obtain a 192-bit product. The product is broken into three 64-bit pieces -which are stored at the locations pointed to by `z0Ptr', `z1Ptr', and -`z2Ptr'. -------------------------------------------------------------------------------- -*/ -INLINE void - mul128By64To192( - bits64 a0, - bits64 a1, - bits64 b, - bits64 *z0Ptr, - bits64 *z1Ptr, - bits64 *z2Ptr - ) -{ - bits64 z0, z1, z2, more1; - - mul64To128( a1, b, &z1, &z2 ); - mul64To128( a0, b, &z0, &more1 ); - add128( z0, more1, 0, z1, &z0, &z1 ); - *z2Ptr = z2; - *z1Ptr = z1; - *z0Ptr = z0; - -} - -/* -------------------------------------------------------------------------------- -Multiplies the 128-bit value formed by concatenating `a0' and `a1' to the -128-bit value formed by concatenating `b0' and `b1' to obtain a 256-bit -product. The product is broken into four 64-bit pieces which are stored at -the locations pointed to by `z0Ptr', `z1Ptr', `z2Ptr', and `z3Ptr'. -------------------------------------------------------------------------------- -*/ -INLINE void - mul128To256( - bits64 a0, - bits64 a1, - bits64 b0, - bits64 b1, - bits64 *z0Ptr, - bits64 *z1Ptr, - bits64 *z2Ptr, - bits64 *z3Ptr - ) -{ - bits64 z0, z1, z2, z3; - bits64 more1, more2; - - mul64To128( a1, b1, &z2, &z3 ); - mul64To128( a1, b0, &z1, &more2 ); - add128( z1, more2, 0, z2, &z1, &z2 ); - mul64To128( a0, b0, &z0, &more1 ); - add128( z0, more1, 0, z1, &z0, &z1 ); - mul64To128( a0, b1, &more1, &more2 ); - add128( more1, more2, 0, z2, &more1, &z2 ); - add128( z0, z1, 0, more1, &z0, &z1 ); - *z3Ptr = z3; - *z2Ptr = z2; - *z1Ptr = z1; - *z0Ptr = z0; - -} - -/* -------------------------------------------------------------------------------- -Returns an approximation to the 64-bit integer quotient obtained by dividing -`b' into the 128-bit value formed by concatenating `a0' and `a1'. The -divisor `b' must be at least 2^63. If q is the exact quotient truncated -toward zero, the approximation returned lies between q and q + 2 inclusive. -If the exact quotient q is larger than 64 bits, the maximum positive 64-bit -unsigned integer is returned. -------------------------------------------------------------------------------- -*/ -static bits64 estimateDiv128To64( bits64 a0, bits64 a1, bits64 b ) -{ - bits64 b0, b1; - bits64 rem0, rem1, term0, term1; - bits64 z; - if ( b <= a0 ) return LIT64( 0xFFFFFFFFFFFFFFFF ); - b0 = b>>32; - z = ( b0<<32 <= a0 ) ? LIT64( 0xFFFFFFFF00000000 ) : ( a0 / b0 )<<32; - mul64To128( b, z, &term0, &term1 ); - sub128( a0, a1, term0, term1, &rem0, &rem1 ); - while ( ( (sbits64) rem0 ) < 0 ) { - z -= LIT64( 0x100000000 ); - b1 = b<<32; - add128( rem0, rem1, b0, b1, &rem0, &rem1 ); - } - rem0 = ( rem0<<32 ) | ( rem1>>32 ); - z |= ( b0<<32 <= rem0 ) ? 0xFFFFFFFF : rem0 / b0; - return z; - -} - -/* -------------------------------------------------------------------------------- -Returns an approximation to the square root of the 32-bit significand given -by `a'. Considered as an integer, `a' must be at least 2^31. If bit 0 of -`aExp' (the least significant bit) is 1, the integer returned approximates -2^31*sqrt(`a'/2^31), where `a' is considered an integer. If bit 0 of `aExp' -is 0, the integer returned approximates 2^31*sqrt(`a'/2^30). In either -case, the approximation returned lies strictly within +/-2 of the exact -value. -------------------------------------------------------------------------------- -*/ -static bits32 estimateSqrt32( int16 aExp, bits32 a ) -{ - static const bits16 sqrtOddAdjustments[] = { - 0x0004, 0x0022, 0x005D, 0x00B1, 0x011D, 0x019F, 0x0236, 0x02E0, - 0x039C, 0x0468, 0x0545, 0x0631, 0x072B, 0x0832, 0x0946, 0x0A67 - }; - static const bits16 sqrtEvenAdjustments[] = { - 0x0A2D, 0x08AF, 0x075A, 0x0629, 0x051A, 0x0429, 0x0356, 0x029E, - 0x0200, 0x0179, 0x0109, 0x00AF, 0x0068, 0x0034, 0x0012, 0x0002 - }; - int8 index; - bits32 z; - - index = ( a>>27 ) & 15; - if ( aExp & 1 ) { - z = 0x4000 + ( a>>17 ) - sqrtOddAdjustments[ index ]; - z = ( ( a / z )<<14 ) + ( z<<15 ); - a >>= 1; - } - else { - z = 0x8000 + ( a>>17 ) - sqrtEvenAdjustments[ index ]; - z = a / z + z; - z = ( 0x20000 <= z ) ? 0xFFFF8000 : ( z<<15 ); - if ( z <= a ) return (bits32) ( ( (sbits32) a )>>1 ); - } - return ( (bits32) ( ( ( (bits64) a )<<31 ) / z ) ) + ( z>>1 ); - -} - -/* -------------------------------------------------------------------------------- -Returns the number of leading 0 bits before the most-significant 1 bit -of `a'. If `a' is zero, 32 is returned. -------------------------------------------------------------------------------- -*/ -static int8 countLeadingZeros32( bits32 a ) -{ - static const int8 countLeadingZerosHigh[] = { - 8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 - }; - int8 shiftCount; - - shiftCount = 0; - if ( a < 0x10000 ) { - shiftCount += 16; - a <<= 16; - } - if ( a < 0x1000000 ) { - shiftCount += 8; - a <<= 8; - } - shiftCount += countLeadingZerosHigh[ a>>24 ]; - return shiftCount; - -} - -/* -------------------------------------------------------------------------------- -Returns the number of leading 0 bits before the most-significant 1 bit -of `a'. If `a' is zero, 64 is returned. -------------------------------------------------------------------------------- -*/ -static int8 countLeadingZeros64( bits64 a ) -{ - int8 shiftCount; - - shiftCount = 0; - if ( a < ( (bits64) 1 )<<32 ) { - shiftCount += 32; - } - else { - a >>= 32; - } - shiftCount += countLeadingZeros32( a ); - return shiftCount; - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the 128-bit value formed by concatenating `a0' and `a1' -is equal to the 128-bit value formed by concatenating `b0' and `b1'. -Otherwise, returns 0. -------------------------------------------------------------------------------- -*/ -INLINE flag eq128( bits64 a0, bits64 a1, bits64 b0, bits64 b1 ) -{ - - return ( a0 == b0 ) && ( a1 == b1 ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the 128-bit value formed by concatenating `a0' and `a1' is less -than or equal to the 128-bit value formed by concatenating `b0' and `b1'. -Otherwise, returns 0. -------------------------------------------------------------------------------- -*/ -INLINE flag le128( bits64 a0, bits64 a1, bits64 b0, bits64 b1 ) -{ - - return ( a0 < b0 ) || ( ( a0 == b0 ) && ( a1 <= b1 ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the 128-bit value formed by concatenating `a0' and `a1' is less -than the 128-bit value formed by concatenating `b0' and `b1'. Otherwise, -returns 0. -------------------------------------------------------------------------------- -*/ -INLINE flag lt128( bits64 a0, bits64 a1, bits64 b0, bits64 b1 ) -{ - - return ( a0 < b0 ) || ( ( a0 == b0 ) && ( a1 < b1 ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the 128-bit value formed by concatenating `a0' and `a1' is -not equal to the 128-bit value formed by concatenating `b0' and `b1'. -Otherwise, returns 0. -------------------------------------------------------------------------------- -*/ -INLINE flag ne128( bits64 a0, bits64 a1, bits64 b0, bits64 b1 ) -{ - - return ( a0 != b0 ) || ( a1 != b1 ); - -} - diff --git a/trunk/arch/arm26/nwfpe/softfloat-specialize b/trunk/arch/arm26/nwfpe/softfloat-specialize deleted file mode 100644 index acf409144763..000000000000 --- a/trunk/arch/arm26/nwfpe/softfloat-specialize +++ /dev/null @@ -1,366 +0,0 @@ - -/* -=============================================================================== - -This C source fragment is part of the SoftFloat IEC/IEEE Floating-point -Arithmetic Package, Release 2. - -Written by John R. Hauser. This work was made possible in part by the -International Computer Science Institute, located at Suite 600, 1947 Center -Street, Berkeley, California 94704. Funding was partially provided by the -National Science Foundation under grant MIP-9311980. The original version -of this code was written as part of a project to build a fixed-point vector -processor in collaboration with the University of California at Berkeley, -overseen by Profs. Nelson Morgan and John Wawrzynek. More information -is available through the Web page `http://HTTP.CS.Berkeley.EDU/~jhauser/ -arithmetic/softfloat.html'. - -THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort -has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT -TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO -PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY -AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE. - -Derivative works are acceptable, even for commercial purposes, so long as -(1) they include prominent notice that the work is derivative, and (2) they -include prominent notice akin to these three paragraphs for those parts of -this code that are retained. - -=============================================================================== -*/ - -/* -------------------------------------------------------------------------------- -Underflow tininess-detection mode, statically initialized to default value. -(The declaration in `softfloat.h' must match the `int8' type here.) -------------------------------------------------------------------------------- -*/ -int8 float_detect_tininess = float_tininess_after_rounding; - -/* -------------------------------------------------------------------------------- -Raises the exceptions specified by `flags'. Floating-point traps can be -defined here if desired. It is currently not possible for such a trap to -substitute a result value. If traps are not implemented, this routine -should be simply `float_exception_flags |= flags;'. - -ScottB: November 4, 1998 -Moved this function out of softfloat-specialize into fpmodule.c. -This effectively isolates all the changes required for integrating with the -Linux kernel into fpmodule.c. Porting to NetBSD should only require modifying -fpmodule.c to integrate with the NetBSD kernel (I hope!). -------------------------------------------------------------------------------- -void float_raise( int8 flags ) -{ - float_exception_flags |= flags; -} -*/ - -/* -------------------------------------------------------------------------------- -Internal canonical NaN format. -------------------------------------------------------------------------------- -*/ -typedef struct { - flag sign; - bits64 high, low; -} commonNaNT; - -/* -------------------------------------------------------------------------------- -The pattern for a default generated single-precision NaN. -------------------------------------------------------------------------------- -*/ -#define float32_default_nan 0xFFFFFFFF - -/* -------------------------------------------------------------------------------- -Returns 1 if the single-precision floating-point value `a' is a NaN; -otherwise returns 0. -------------------------------------------------------------------------------- -*/ -flag float32_is_nan( float32 a ) -{ - - return ( 0xFF000000 < (bits32) ( a<<1 ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the single-precision floating-point value `a' is a signaling -NaN; otherwise returns 0. -------------------------------------------------------------------------------- -*/ -flag float32_is_signaling_nan( float32 a ) -{ - - return ( ( ( a>>22 ) & 0x1FF ) == 0x1FE ) && ( a & 0x003FFFFF ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the single-precision floating-point NaN -`a' to the canonical NaN format. If `a' is a signaling NaN, the invalid -exception is raised. -------------------------------------------------------------------------------- -*/ -static commonNaNT float32ToCommonNaN( float32 a ) -{ - commonNaNT z; - - if ( float32_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); - z.sign = a>>31; - z.low = 0; - z.high = ( (bits64) a )<<41; - return z; - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the canonical NaN `a' to the single- -precision floating-point format. -------------------------------------------------------------------------------- -*/ -static float32 commonNaNToFloat32( commonNaNT a ) -{ - - return ( ( (bits32) a.sign )<<31 ) | 0x7FC00000 | ( a.high>>41 ); - -} - -/* -------------------------------------------------------------------------------- -Takes two single-precision floating-point values `a' and `b', one of which -is a NaN, and returns the appropriate NaN result. If either `a' or `b' is a -signaling NaN, the invalid exception is raised. -------------------------------------------------------------------------------- -*/ -static float32 propagateFloat32NaN( float32 a, float32 b ) -{ - flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; - - aIsNaN = float32_is_nan( a ); - aIsSignalingNaN = float32_is_signaling_nan( a ); - bIsNaN = float32_is_nan( b ); - bIsSignalingNaN = float32_is_signaling_nan( b ); - a |= 0x00400000; - b |= 0x00400000; - if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); - if ( aIsNaN ) { - return ( aIsSignalingNaN & bIsNaN ) ? b : a; - } - else { - return b; - } - -} - -/* -------------------------------------------------------------------------------- -The pattern for a default generated double-precision NaN. -------------------------------------------------------------------------------- -*/ -#define float64_default_nan LIT64( 0xFFFFFFFFFFFFFFFF ) - -/* -------------------------------------------------------------------------------- -Returns 1 if the double-precision floating-point value `a' is a NaN; -otherwise returns 0. -------------------------------------------------------------------------------- -*/ -flag float64_is_nan( float64 a ) -{ - - return ( LIT64( 0xFFE0000000000000 ) < (bits64) ( a<<1 ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the double-precision floating-point value `a' is a signaling -NaN; otherwise returns 0. -------------------------------------------------------------------------------- -*/ -flag float64_is_signaling_nan( float64 a ) -{ - - return - ( ( ( a>>51 ) & 0xFFF ) == 0xFFE ) - && ( a & LIT64( 0x0007FFFFFFFFFFFF ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the double-precision floating-point NaN -`a' to the canonical NaN format. If `a' is a signaling NaN, the invalid -exception is raised. -------------------------------------------------------------------------------- -*/ -static commonNaNT float64ToCommonNaN( float64 a ) -{ - commonNaNT z; - - if ( float64_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); - z.sign = a>>63; - z.low = 0; - z.high = a<<12; - return z; - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the canonical NaN `a' to the double- -precision floating-point format. -------------------------------------------------------------------------------- -*/ -static float64 commonNaNToFloat64( commonNaNT a ) -{ - - return - ( ( (bits64) a.sign )<<63 ) - | LIT64( 0x7FF8000000000000 ) - | ( a.high>>12 ); - -} - -/* -------------------------------------------------------------------------------- -Takes two double-precision floating-point values `a' and `b', one of which -is a NaN, and returns the appropriate NaN result. If either `a' or `b' is a -signaling NaN, the invalid exception is raised. -------------------------------------------------------------------------------- -*/ -static float64 propagateFloat64NaN( float64 a, float64 b ) -{ - flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; - - aIsNaN = float64_is_nan( a ); - aIsSignalingNaN = float64_is_signaling_nan( a ); - bIsNaN = float64_is_nan( b ); - bIsSignalingNaN = float64_is_signaling_nan( b ); - a |= LIT64( 0x0008000000000000 ); - b |= LIT64( 0x0008000000000000 ); - if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); - if ( aIsNaN ) { - return ( aIsSignalingNaN & bIsNaN ) ? b : a; - } - else { - return b; - } - -} - -#ifdef FLOATX80 - -/* -------------------------------------------------------------------------------- -The pattern for a default generated extended double-precision NaN. The -`high' and `low' values hold the most- and least-significant bits, -respectively. -------------------------------------------------------------------------------- -*/ -#define floatx80_default_nan_high 0xFFFF -#define floatx80_default_nan_low LIT64( 0xFFFFFFFFFFFFFFFF ) - -/* -------------------------------------------------------------------------------- -Returns 1 if the extended double-precision floating-point value `a' is a -NaN; otherwise returns 0. -------------------------------------------------------------------------------- -*/ -flag floatx80_is_nan( floatx80 a ) -{ - - return ( ( a.high & 0x7FFF ) == 0x7FFF ) && (bits64) ( a.low<<1 ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the extended double-precision floating-point value `a' is a -signaling NaN; otherwise returns 0. -------------------------------------------------------------------------------- -*/ -flag floatx80_is_signaling_nan( floatx80 a ) -{ - //register int lr; - bits64 aLow; - - //__asm__("mov %0, lr" : : "g" (lr)); - //fp_printk("floatx80_is_signalling_nan() called from 0x%08x\n",lr); - aLow = a.low & ~ LIT64( 0x4000000000000000 ); - return - ( ( a.high & 0x7FFF ) == 0x7FFF ) - && (bits64) ( aLow<<1 ) - && ( a.low == aLow ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the extended double-precision floating- -point NaN `a' to the canonical NaN format. If `a' is a signaling NaN, the -invalid exception is raised. -------------------------------------------------------------------------------- -*/ -static commonNaNT floatx80ToCommonNaN( floatx80 a ) -{ - commonNaNT z; - - if ( floatx80_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); - z.sign = a.high>>15; - z.low = 0; - z.high = a.low<<1; - return z; - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the canonical NaN `a' to the extended -double-precision floating-point format. -------------------------------------------------------------------------------- -*/ -static floatx80 commonNaNToFloatx80( commonNaNT a ) -{ - floatx80 z; - - z.low = LIT64( 0xC000000000000000 ) | ( a.high>>1 ); - z.high = ( ( (bits16) a.sign )<<15 ) | 0x7FFF; - return z; - -} - -/* -------------------------------------------------------------------------------- -Takes two extended double-precision floating-point values `a' and `b', one -of which is a NaN, and returns the appropriate NaN result. If either `a' or -`b' is a signaling NaN, the invalid exception is raised. -------------------------------------------------------------------------------- -*/ -static floatx80 propagateFloatx80NaN( floatx80 a, floatx80 b ) -{ - flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; - - aIsNaN = floatx80_is_nan( a ); - aIsSignalingNaN = floatx80_is_signaling_nan( a ); - bIsNaN = floatx80_is_nan( b ); - bIsSignalingNaN = floatx80_is_signaling_nan( b ); - a.low |= LIT64( 0xC000000000000000 ); - b.low |= LIT64( 0xC000000000000000 ); - if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); - if ( aIsNaN ) { - return ( aIsSignalingNaN & bIsNaN ) ? b : a; - } - else { - return b; - } - -} - -#endif diff --git a/trunk/arch/arm26/nwfpe/softfloat.c b/trunk/arch/arm26/nwfpe/softfloat.c deleted file mode 100644 index 26c1b916e527..000000000000 --- a/trunk/arch/arm26/nwfpe/softfloat.c +++ /dev/null @@ -1,3439 +0,0 @@ -/* -=============================================================================== - -This C source file is part of the SoftFloat IEC/IEEE Floating-point -Arithmetic Package, Release 2. - -Written by John R. Hauser. This work was made possible in part by the -International Computer Science Institute, located at Suite 600, 1947 Center -Street, Berkeley, California 94704. Funding was partially provided by the -National Science Foundation under grant MIP-9311980. The original version -of this code was written as part of a project to build a fixed-point vector -processor in collaboration with the University of California at Berkeley, -overseen by Profs. Nelson Morgan and John Wawrzynek. More information -is available through the web page `http://HTTP.CS.Berkeley.EDU/~jhauser/ -arithmetic/softfloat.html'. - -THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort -has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT -TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO -PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY -AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE. - -Derivative works are acceptable, even for commercial purposes, so long as -(1) they include prominent notice that the work is derivative, and (2) they -include prominent notice akin to these three paragraphs for those parts of -this code that are retained. - -=============================================================================== -*/ - -#include "fpa11.h" -#include "milieu.h" -#include "softfloat.h" - -/* -------------------------------------------------------------------------------- -Floating-point rounding mode, extended double-precision rounding precision, -and exception flags. -------------------------------------------------------------------------------- -*/ -int8 float_rounding_mode = float_round_nearest_even; -int8 floatx80_rounding_precision = 80; -int8 float_exception_flags; - -/* -------------------------------------------------------------------------------- -Primitive arithmetic functions, including multi-word arithmetic, and -division and square root approximations. (Can be specialized to target if -desired.) -------------------------------------------------------------------------------- -*/ -#include "softfloat-macros" - -/* -------------------------------------------------------------------------------- -Functions and definitions to determine: (1) whether tininess for underflow -is detected before or after rounding by default, (2) what (if anything) -happens when exceptions are raised, (3) how signaling NaNs are distinguished -from quiet NaNs, (4) the default generated quiet NaNs, and (5) how NaNs -are propagated from function inputs to output. These details are target- -specific. -------------------------------------------------------------------------------- -*/ -#include "softfloat-specialize" - -/* -------------------------------------------------------------------------------- -Takes a 64-bit fixed-point value `absZ' with binary point between bits 6 -and 7, and returns the properly rounded 32-bit integer corresponding to the -input. If `zSign' is nonzero, the input is negated before being converted -to an integer. Bit 63 of `absZ' must be zero. Ordinarily, the fixed-point -input is simply rounded to an integer, with the inexact exception raised if -the input cannot be represented exactly as an integer. If the fixed-point -input is too large, however, the invalid exception is raised and the largest -positive or negative integer is returned. -------------------------------------------------------------------------------- -*/ -static int32 roundAndPackInt32( flag zSign, bits64 absZ ) -{ - int8 roundingMode; - flag roundNearestEven; - int8 roundIncrement, roundBits; - int32 z; - - roundingMode = float_rounding_mode; - roundNearestEven = ( roundingMode == float_round_nearest_even ); - roundIncrement = 0x40; - if ( ! roundNearestEven ) { - if ( roundingMode == float_round_to_zero ) { - roundIncrement = 0; - } - else { - roundIncrement = 0x7F; - if ( zSign ) { - if ( roundingMode == float_round_up ) roundIncrement = 0; - } - else { - if ( roundingMode == float_round_down ) roundIncrement = 0; - } - } - } - roundBits = absZ & 0x7F; - absZ = ( absZ + roundIncrement )>>7; - absZ &= ~ ( ( ( roundBits ^ 0x40 ) == 0 ) & roundNearestEven ); - z = absZ; - if ( zSign ) z = - z; - if ( ( absZ>>32 ) || ( z && ( ( z < 0 ) ^ zSign ) ) ) { - float_exception_flags |= float_flag_invalid; - return zSign ? 0x80000000 : 0x7FFFFFFF; - } - if ( roundBits ) float_exception_flags |= float_flag_inexact; - return z; - -} - -/* -------------------------------------------------------------------------------- -Returns the fraction bits of the single-precision floating-point value `a'. -------------------------------------------------------------------------------- -*/ -INLINE bits32 extractFloat32Frac( float32 a ) -{ - - return a & 0x007FFFFF; - -} - -/* -------------------------------------------------------------------------------- -Returns the exponent bits of the single-precision floating-point value `a'. -------------------------------------------------------------------------------- -*/ -INLINE int16 extractFloat32Exp( float32 a ) -{ - - return ( a>>23 ) & 0xFF; - -} - -/* -------------------------------------------------------------------------------- -Returns the sign bit of the single-precision floating-point value `a'. -------------------------------------------------------------------------------- -*/ -INLINE flag extractFloat32Sign( float32 a ) -{ - - return a>>31; - -} - -/* -------------------------------------------------------------------------------- -Normalizes the subnormal single-precision floating-point value represented -by the denormalized significand `aSig'. The normalized exponent and -significand are stored at the locations pointed to by `zExpPtr' and -`zSigPtr', respectively. -------------------------------------------------------------------------------- -*/ -static void - normalizeFloat32Subnormal( bits32 aSig, int16 *zExpPtr, bits32 *zSigPtr ) -{ - int8 shiftCount; - - shiftCount = countLeadingZeros32( aSig ) - 8; - *zSigPtr = aSig<>7; - zSig &= ~ ( ( ( roundBits ^ 0x40 ) == 0 ) & roundNearestEven ); - if ( zSig == 0 ) zExp = 0; - return packFloat32( zSign, zExp, zSig ); - -} - -/* -------------------------------------------------------------------------------- -Takes an abstract floating-point value having sign `zSign', exponent `zExp', -and significand `zSig', and returns the proper single-precision floating- -point value corresponding to the abstract input. This routine is just like -`roundAndPackFloat32' except that `zSig' does not have to be normalized in -any way. In all cases, `zExp' must be 1 less than the ``true'' floating- -point exponent. -------------------------------------------------------------------------------- -*/ -static float32 - normalizeRoundAndPackFloat32( flag zSign, int16 zExp, bits32 zSig ) -{ - int8 shiftCount; - - shiftCount = countLeadingZeros32( zSig ) - 1; - return roundAndPackFloat32( zSign, zExp - shiftCount, zSig<>52 ) & 0x7FF; - -} - -/* -------------------------------------------------------------------------------- -Returns the sign bit of the double-precision floating-point value `a'. -------------------------------------------------------------------------------- -*/ -INLINE flag extractFloat64Sign( float64 a ) -{ - - return a>>63; - -} - -/* -------------------------------------------------------------------------------- -Normalizes the subnormal double-precision floating-point value represented -by the denormalized significand `aSig'. The normalized exponent and -significand are stored at the locations pointed to by `zExpPtr' and -`zSigPtr', respectively. -------------------------------------------------------------------------------- -*/ -static void - normalizeFloat64Subnormal( bits64 aSig, int16 *zExpPtr, bits64 *zSigPtr ) -{ - int8 shiftCount; - - shiftCount = countLeadingZeros64( aSig ) - 11; - *zSigPtr = aSig<>10; - zSig &= ~ ( ( ( roundBits ^ 0x200 ) == 0 ) & roundNearestEven ); - if ( zSig == 0 ) zExp = 0; - return packFloat64( zSign, zExp, zSig ); - -} - -/* -------------------------------------------------------------------------------- -Takes an abstract floating-point value having sign `zSign', exponent `zExp', -and significand `zSig', and returns the proper double-precision floating- -point value corresponding to the abstract input. This routine is just like -`roundAndPackFloat64' except that `zSig' does not have to be normalized in -any way. In all cases, `zExp' must be 1 less than the ``true'' floating- -point exponent. -------------------------------------------------------------------------------- -*/ -static float64 - normalizeRoundAndPackFloat64( flag zSign, int16 zExp, bits64 zSig ) -{ - int8 shiftCount; - - shiftCount = countLeadingZeros64( zSig ) - 1; - return roundAndPackFloat64( zSign, zExp - shiftCount, zSig<>15; - -} - -/* -------------------------------------------------------------------------------- -Normalizes the subnormal extended double-precision floating-point value -represented by the denormalized significand `aSig'. The normalized exponent -and significand are stored at the locations pointed to by `zExpPtr' and -`zSigPtr', respectively. -------------------------------------------------------------------------------- -*/ -static void - normalizeFloatx80Subnormal( bits64 aSig, int32 *zExpPtr, bits64 *zSigPtr ) -{ - int8 shiftCount; - - shiftCount = countLeadingZeros64( aSig ); - *zSigPtr = aSig<>( - shiftCount ); - if ( (bits32) ( aSig<<( shiftCount & 31 ) ) ) { - float_exception_flags |= float_flag_inexact; - } - return aSign ? - z : z; - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the single-precision floating-point value -`a' to the double-precision floating-point format. The conversion is -performed according to the IEC/IEEE Standard for Binary Floating-point -Arithmetic. -------------------------------------------------------------------------------- -*/ -float64 float32_to_float64( float32 a ) -{ - flag aSign; - int16 aExp; - bits32 aSig; - - aSig = extractFloat32Frac( a ); - aExp = extractFloat32Exp( a ); - aSign = extractFloat32Sign( a ); - if ( aExp == 0xFF ) { - if ( aSig ) return commonNaNToFloat64( float32ToCommonNaN( a ) ); - return packFloat64( aSign, 0x7FF, 0 ); - } - if ( aExp == 0 ) { - if ( aSig == 0 ) return packFloat64( aSign, 0, 0 ); - normalizeFloat32Subnormal( aSig, &aExp, &aSig ); - --aExp; - } - return packFloat64( aSign, aExp + 0x380, ( (bits64) aSig )<<29 ); - -} - -#ifdef FLOATX80 - -/* -------------------------------------------------------------------------------- -Returns the result of converting the single-precision floating-point value -`a' to the extended double-precision floating-point format. The conversion -is performed according to the IEC/IEEE Standard for Binary Floating-point -Arithmetic. -------------------------------------------------------------------------------- -*/ -floatx80 float32_to_floatx80( float32 a ) -{ - flag aSign; - int16 aExp; - bits32 aSig; - - aSig = extractFloat32Frac( a ); - aExp = extractFloat32Exp( a ); - aSign = extractFloat32Sign( a ); - if ( aExp == 0xFF ) { - if ( aSig ) return commonNaNToFloatx80( float32ToCommonNaN( a ) ); - return packFloatx80( aSign, 0x7FFF, LIT64( 0x8000000000000000 ) ); - } - if ( aExp == 0 ) { - if ( aSig == 0 ) return packFloatx80( aSign, 0, 0 ); - normalizeFloat32Subnormal( aSig, &aExp, &aSig ); - } - aSig |= 0x00800000; - return packFloatx80( aSign, aExp + 0x3F80, ( (bits64) aSig )<<40 ); - -} - -#endif - -/* -------------------------------------------------------------------------------- -Rounds the single-precision floating-point value `a' to an integer, and -returns the result as a single-precision floating-point value. The -operation is performed according to the IEC/IEEE Standard for Binary -Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -float32 float32_round_to_int( float32 a ) -{ - flag aSign; - int16 aExp; - bits32 lastBitMask, roundBitsMask; - int8 roundingMode; - float32 z; - - aExp = extractFloat32Exp( a ); - if ( 0x96 <= aExp ) { - if ( ( aExp == 0xFF ) && extractFloat32Frac( a ) ) { - return propagateFloat32NaN( a, a ); - } - return a; - } - if ( aExp <= 0x7E ) { - if ( (bits32) ( a<<1 ) == 0 ) return a; - float_exception_flags |= float_flag_inexact; - aSign = extractFloat32Sign( a ); - switch ( float_rounding_mode ) { - case float_round_nearest_even: - if ( ( aExp == 0x7E ) && extractFloat32Frac( a ) ) { - return packFloat32( aSign, 0x7F, 0 ); - } - break; - case float_round_down: - return aSign ? 0xBF800000 : 0; - case float_round_up: - return aSign ? 0x80000000 : 0x3F800000; - } - return packFloat32( aSign, 0, 0 ); - } - lastBitMask = 1; - lastBitMask <<= 0x96 - aExp; - roundBitsMask = lastBitMask - 1; - z = a; - roundingMode = float_rounding_mode; - if ( roundingMode == float_round_nearest_even ) { - z += lastBitMask>>1; - if ( ( z & roundBitsMask ) == 0 ) z &= ~ lastBitMask; - } - else if ( roundingMode != float_round_to_zero ) { - if ( extractFloat32Sign( z ) ^ ( roundingMode == float_round_up ) ) { - z += roundBitsMask; - } - } - z &= ~ roundBitsMask; - if ( z != a ) float_exception_flags |= float_flag_inexact; - return z; - -} - -/* -------------------------------------------------------------------------------- -Returns the result of adding the absolute values of the single-precision -floating-point values `a' and `b'. If `zSign' is true, the sum is negated -before being returned. `zSign' is ignored if the result is a NaN. The -addition is performed according to the IEC/IEEE Standard for Binary -Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -static float32 addFloat32Sigs( float32 a, float32 b, flag zSign ) -{ - int16 aExp, bExp, zExp; - bits32 aSig, bSig, zSig; - int16 expDiff; - - aSig = extractFloat32Frac( a ); - aExp = extractFloat32Exp( a ); - bSig = extractFloat32Frac( b ); - bExp = extractFloat32Exp( b ); - expDiff = aExp - bExp; - aSig <<= 6; - bSig <<= 6; - if ( 0 < expDiff ) { - if ( aExp == 0xFF ) { - if ( aSig ) return propagateFloat32NaN( a, b ); - return a; - } - if ( bExp == 0 ) { - --expDiff; - } - else { - bSig |= 0x20000000; - } - shift32RightJamming( bSig, expDiff, &bSig ); - zExp = aExp; - } - else if ( expDiff < 0 ) { - if ( bExp == 0xFF ) { - if ( bSig ) return propagateFloat32NaN( a, b ); - return packFloat32( zSign, 0xFF, 0 ); - } - if ( aExp == 0 ) { - ++expDiff; - } - else { - aSig |= 0x20000000; - } - shift32RightJamming( aSig, - expDiff, &aSig ); - zExp = bExp; - } - else { - if ( aExp == 0xFF ) { - if ( aSig | bSig ) return propagateFloat32NaN( a, b ); - return a; - } - if ( aExp == 0 ) return packFloat32( zSign, 0, ( aSig + bSig )>>6 ); - zSig = 0x40000000 + aSig + bSig; - zExp = aExp; - goto roundAndPack; - } - aSig |= 0x20000000; - zSig = ( aSig + bSig )<<1; - --zExp; - if ( (sbits32) zSig < 0 ) { - zSig = aSig + bSig; - ++zExp; - } - roundAndPack: - return roundAndPackFloat32( zSign, zExp, zSig ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of subtracting the absolute values of the single- -precision floating-point values `a' and `b'. If `zSign' is true, the -difference is negated before being returned. `zSign' is ignored if the -result is a NaN. The subtraction is performed according to the IEC/IEEE -Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -static float32 subFloat32Sigs( float32 a, float32 b, flag zSign ) -{ - int16 aExp, bExp, zExp; - bits32 aSig, bSig, zSig; - int16 expDiff; - - aSig = extractFloat32Frac( a ); - aExp = extractFloat32Exp( a ); - bSig = extractFloat32Frac( b ); - bExp = extractFloat32Exp( b ); - expDiff = aExp - bExp; - aSig <<= 7; - bSig <<= 7; - if ( 0 < expDiff ) goto aExpBigger; - if ( expDiff < 0 ) goto bExpBigger; - if ( aExp == 0xFF ) { - if ( aSig | bSig ) return propagateFloat32NaN( a, b ); - float_raise( float_flag_invalid ); - return float32_default_nan; - } - if ( aExp == 0 ) { - aExp = 1; - bExp = 1; - } - if ( bSig < aSig ) goto aBigger; - if ( aSig < bSig ) goto bBigger; - return packFloat32( float_rounding_mode == float_round_down, 0, 0 ); - bExpBigger: - if ( bExp == 0xFF ) { - if ( bSig ) return propagateFloat32NaN( a, b ); - return packFloat32( zSign ^ 1, 0xFF, 0 ); - } - if ( aExp == 0 ) { - ++expDiff; - } - else { - aSig |= 0x40000000; - } - shift32RightJamming( aSig, - expDiff, &aSig ); - bSig |= 0x40000000; - bBigger: - zSig = bSig - aSig; - zExp = bExp; - zSign ^= 1; - goto normalizeRoundAndPack; - aExpBigger: - if ( aExp == 0xFF ) { - if ( aSig ) return propagateFloat32NaN( a, b ); - return a; - } - if ( bExp == 0 ) { - --expDiff; - } - else { - bSig |= 0x40000000; - } - shift32RightJamming( bSig, expDiff, &bSig ); - aSig |= 0x40000000; - aBigger: - zSig = aSig - bSig; - zExp = aExp; - normalizeRoundAndPack: - --zExp; - return normalizeRoundAndPackFloat32( zSign, zExp, zSig ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of adding the single-precision floating-point values `a' -and `b'. The operation is performed according to the IEC/IEEE Standard for -Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -float32 float32_add( float32 a, float32 b ) -{ - flag aSign, bSign; - - aSign = extractFloat32Sign( a ); - bSign = extractFloat32Sign( b ); - if ( aSign == bSign ) { - return addFloat32Sigs( a, b, aSign ); - } - else { - return subFloat32Sigs( a, b, aSign ); - } - -} - -/* -------------------------------------------------------------------------------- -Returns the result of subtracting the single-precision floating-point values -`a' and `b'. The operation is performed according to the IEC/IEEE Standard -for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -float32 float32_sub( float32 a, float32 b ) -{ - flag aSign, bSign; - - aSign = extractFloat32Sign( a ); - bSign = extractFloat32Sign( b ); - if ( aSign == bSign ) { - return subFloat32Sigs( a, b, aSign ); - } - else { - return addFloat32Sigs( a, b, aSign ); - } - -} - -/* -------------------------------------------------------------------------------- -Returns the result of multiplying the single-precision floating-point values -`a' and `b'. The operation is performed according to the IEC/IEEE Standard -for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -float32 float32_mul( float32 a, float32 b ) -{ - flag aSign, bSign, zSign; - int16 aExp, bExp, zExp; - bits32 aSig, bSig; - bits64 zSig64; - bits32 zSig; - - aSig = extractFloat32Frac( a ); - aExp = extractFloat32Exp( a ); - aSign = extractFloat32Sign( a ); - bSig = extractFloat32Frac( b ); - bExp = extractFloat32Exp( b ); - bSign = extractFloat32Sign( b ); - zSign = aSign ^ bSign; - if ( aExp == 0xFF ) { - if ( aSig || ( ( bExp == 0xFF ) && bSig ) ) { - return propagateFloat32NaN( a, b ); - } - if ( ( bExp | bSig ) == 0 ) { - float_raise( float_flag_invalid ); - return float32_default_nan; - } - return packFloat32( zSign, 0xFF, 0 ); - } - if ( bExp == 0xFF ) { - if ( bSig ) return propagateFloat32NaN( a, b ); - if ( ( aExp | aSig ) == 0 ) { - float_raise( float_flag_invalid ); - return float32_default_nan; - } - return packFloat32( zSign, 0xFF, 0 ); - } - if ( aExp == 0 ) { - if ( aSig == 0 ) return packFloat32( zSign, 0, 0 ); - normalizeFloat32Subnormal( aSig, &aExp, &aSig ); - } - if ( bExp == 0 ) { - if ( bSig == 0 ) return packFloat32( zSign, 0, 0 ); - normalizeFloat32Subnormal( bSig, &bExp, &bSig ); - } - zExp = aExp + bExp - 0x7F; - aSig = ( aSig | 0x00800000 )<<7; - bSig = ( bSig | 0x00800000 )<<8; - shift64RightJamming( ( (bits64) aSig ) * bSig, 32, &zSig64 ); - zSig = zSig64; - if ( 0 <= (sbits32) ( zSig<<1 ) ) { - zSig <<= 1; - --zExp; - } - return roundAndPackFloat32( zSign, zExp, zSig ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of dividing the single-precision floating-point value `a' -by the corresponding value `b'. The operation is performed according to the -IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -float32 float32_div( float32 a, float32 b ) -{ - flag aSign, bSign, zSign; - int16 aExp, bExp, zExp; - bits32 aSig, bSig, zSig; - - aSig = extractFloat32Frac( a ); - aExp = extractFloat32Exp( a ); - aSign = extractFloat32Sign( a ); - bSig = extractFloat32Frac( b ); - bExp = extractFloat32Exp( b ); - bSign = extractFloat32Sign( b ); - zSign = aSign ^ bSign; - if ( aExp == 0xFF ) { - if ( aSig ) return propagateFloat32NaN( a, b ); - if ( bExp == 0xFF ) { - if ( bSig ) return propagateFloat32NaN( a, b ); - float_raise( float_flag_invalid ); - return float32_default_nan; - } - return packFloat32( zSign, 0xFF, 0 ); - } - if ( bExp == 0xFF ) { - if ( bSig ) return propagateFloat32NaN( a, b ); - return packFloat32( zSign, 0, 0 ); - } - if ( bExp == 0 ) { - if ( bSig == 0 ) { - if ( ( aExp | aSig ) == 0 ) { - float_raise( float_flag_invalid ); - return float32_default_nan; - } - float_raise( float_flag_divbyzero ); - return packFloat32( zSign, 0xFF, 0 ); - } - normalizeFloat32Subnormal( bSig, &bExp, &bSig ); - } - if ( aExp == 0 ) { - if ( aSig == 0 ) return packFloat32( zSign, 0, 0 ); - normalizeFloat32Subnormal( aSig, &aExp, &aSig ); - } - zExp = aExp - bExp + 0x7D; - aSig = ( aSig | 0x00800000 )<<7; - bSig = ( bSig | 0x00800000 )<<8; - if ( bSig <= ( aSig + aSig ) ) { - aSig >>= 1; - ++zExp; - } - zSig = ( ( (bits64) aSig )<<32 ) / bSig; - if ( ( zSig & 0x3F ) == 0 ) { - zSig |= ( ( (bits64) bSig ) * zSig != ( (bits64) aSig )<<32 ); - } - return roundAndPackFloat32( zSign, zExp, zSig ); - -} - -/* -------------------------------------------------------------------------------- -Returns the remainder of the single-precision floating-point value `a' -with respect to the corresponding value `b'. The operation is performed -according to the IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -float32 float32_rem( float32 a, float32 b ) -{ - flag aSign, bSign, zSign; - int16 aExp, bExp, expDiff; - bits32 aSig, bSig; - bits32 q; - bits64 aSig64, bSig64, q64; - bits32 alternateASig; - sbits32 sigMean; - - aSig = extractFloat32Frac( a ); - aExp = extractFloat32Exp( a ); - aSign = extractFloat32Sign( a ); - bSig = extractFloat32Frac( b ); - bExp = extractFloat32Exp( b ); - bSign = extractFloat32Sign( b ); - if ( aExp == 0xFF ) { - if ( aSig || ( ( bExp == 0xFF ) && bSig ) ) { - return propagateFloat32NaN( a, b ); - } - float_raise( float_flag_invalid ); - return float32_default_nan; - } - if ( bExp == 0xFF ) { - if ( bSig ) return propagateFloat32NaN( a, b ); - return a; - } - if ( bExp == 0 ) { - if ( bSig == 0 ) { - float_raise( float_flag_invalid ); - return float32_default_nan; - } - normalizeFloat32Subnormal( bSig, &bExp, &bSig ); - } - if ( aExp == 0 ) { - if ( aSig == 0 ) return a; - normalizeFloat32Subnormal( aSig, &aExp, &aSig ); - } - expDiff = aExp - bExp; - aSig |= 0x00800000; - bSig |= 0x00800000; - if ( expDiff < 32 ) { - aSig <<= 8; - bSig <<= 8; - if ( expDiff < 0 ) { - if ( expDiff < -1 ) return a; - aSig >>= 1; - } - q = ( bSig <= aSig ); - if ( q ) aSig -= bSig; - if ( 0 < expDiff ) { - q = ( ( (bits64) aSig )<<32 ) / bSig; - q >>= 32 - expDiff; - bSig >>= 2; - aSig = ( ( aSig>>1 )<<( expDiff - 1 ) ) - bSig * q; - } - else { - aSig >>= 2; - bSig >>= 2; - } - } - else { - if ( bSig <= aSig ) aSig -= bSig; - aSig64 = ( (bits64) aSig )<<40; - bSig64 = ( (bits64) bSig )<<40; - expDiff -= 64; - while ( 0 < expDiff ) { - q64 = estimateDiv128To64( aSig64, 0, bSig64 ); - q64 = ( 2 < q64 ) ? q64 - 2 : 0; - aSig64 = - ( ( bSig * q64 )<<38 ); - expDiff -= 62; - } - expDiff += 64; - q64 = estimateDiv128To64( aSig64, 0, bSig64 ); - q64 = ( 2 < q64 ) ? q64 - 2 : 0; - q = q64>>( 64 - expDiff ); - bSig <<= 6; - aSig = ( ( aSig64>>33 )<<( expDiff - 1 ) ) - bSig * q; - } - do { - alternateASig = aSig; - ++q; - aSig -= bSig; - } while ( 0 <= (sbits32) aSig ); - sigMean = aSig + alternateASig; - if ( ( sigMean < 0 ) || ( ( sigMean == 0 ) && ( q & 1 ) ) ) { - aSig = alternateASig; - } - zSign = ( (sbits32) aSig < 0 ); - if ( zSign ) aSig = - aSig; - return normalizeRoundAndPackFloat32( aSign ^ zSign, bExp, aSig ); - -} - -/* -------------------------------------------------------------------------------- -Returns the square root of the single-precision floating-point value `a'. -The operation is performed according to the IEC/IEEE Standard for Binary -Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -float32 float32_sqrt( float32 a ) -{ - flag aSign; - int16 aExp, zExp; - bits32 aSig, zSig; - bits64 rem, term; - - aSig = extractFloat32Frac( a ); - aExp = extractFloat32Exp( a ); - aSign = extractFloat32Sign( a ); - if ( aExp == 0xFF ) { - if ( aSig ) return propagateFloat32NaN( a, 0 ); - if ( ! aSign ) return a; - float_raise( float_flag_invalid ); - return float32_default_nan; - } - if ( aSign ) { - if ( ( aExp | aSig ) == 0 ) return a; - float_raise( float_flag_invalid ); - return float32_default_nan; - } - if ( aExp == 0 ) { - if ( aSig == 0 ) return 0; - normalizeFloat32Subnormal( aSig, &aExp, &aSig ); - } - zExp = ( ( aExp - 0x7F )>>1 ) + 0x7E; - aSig = ( aSig | 0x00800000 )<<8; - zSig = estimateSqrt32( aExp, aSig ) + 2; - if ( ( zSig & 0x7F ) <= 5 ) { - if ( zSig < 2 ) { - zSig = 0xFFFFFFFF; - } - else { - aSig >>= aExp & 1; - term = ( (bits64) zSig ) * zSig; - rem = ( ( (bits64) aSig )<<32 ) - term; - while ( (sbits64) rem < 0 ) { - --zSig; - rem += ( ( (bits64) zSig )<<1 ) | 1; - } - zSig |= ( rem != 0 ); - } - } - shift32RightJamming( zSig, 1, &zSig ); - return roundAndPackFloat32( 0, zExp, zSig ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the single-precision floating-point value `a' is equal to the -corresponding value `b', and 0 otherwise. The comparison is performed -according to the IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -flag float32_eq( float32 a, float32 b ) -{ - - if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) ) - || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) ) - ) { - if ( float32_is_signaling_nan( a ) || float32_is_signaling_nan( b ) ) { - float_raise( float_flag_invalid ); - } - return 0; - } - return ( a == b ) || ( (bits32) ( ( a | b )<<1 ) == 0 ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the single-precision floating-point value `a' is less than or -equal to the corresponding value `b', and 0 otherwise. The comparison is -performed according to the IEC/IEEE Standard for Binary Floating-point -Arithmetic. -------------------------------------------------------------------------------- -*/ -flag float32_le( float32 a, float32 b ) -{ - flag aSign, bSign; - - if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) ) - || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) ) - ) { - float_raise( float_flag_invalid ); - return 0; - } - aSign = extractFloat32Sign( a ); - bSign = extractFloat32Sign( b ); - if ( aSign != bSign ) return aSign || ( (bits32) ( ( a | b )<<1 ) == 0 ); - return ( a == b ) || ( aSign ^ ( a < b ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the single-precision floating-point value `a' is less than -the corresponding value `b', and 0 otherwise. The comparison is performed -according to the IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -flag float32_lt( float32 a, float32 b ) -{ - flag aSign, bSign; - - if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) ) - || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) ) - ) { - float_raise( float_flag_invalid ); - return 0; - } - aSign = extractFloat32Sign( a ); - bSign = extractFloat32Sign( b ); - if ( aSign != bSign ) return aSign && ( (bits32) ( ( a | b )<<1 ) != 0 ); - return ( a != b ) && ( aSign ^ ( a < b ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the single-precision floating-point value `a' is equal to the -corresponding value `b', and 0 otherwise. The invalid exception is raised -if either operand is a NaN. Otherwise, the comparison is performed -according to the IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -flag float32_eq_signaling( float32 a, float32 b ) -{ - - if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) ) - || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) ) - ) { - float_raise( float_flag_invalid ); - return 0; - } - return ( a == b ) || ( (bits32) ( ( a | b )<<1 ) == 0 ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the single-precision floating-point value `a' is less than or -equal to the corresponding value `b', and 0 otherwise. Quiet NaNs do not -cause an exception. Otherwise, the comparison is performed according to the -IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -flag float32_le_quiet( float32 a, float32 b ) -{ - flag aSign, bSign; - //int16 aExp, bExp; - - if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) ) - || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) ) - ) { - if ( float32_is_signaling_nan( a ) || float32_is_signaling_nan( b ) ) { - float_raise( float_flag_invalid ); - } - return 0; - } - aSign = extractFloat32Sign( a ); - bSign = extractFloat32Sign( b ); - if ( aSign != bSign ) return aSign || ( (bits32) ( ( a | b )<<1 ) == 0 ); - return ( a == b ) || ( aSign ^ ( a < b ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the single-precision floating-point value `a' is less than -the corresponding value `b', and 0 otherwise. Quiet NaNs do not cause an -exception. Otherwise, the comparison is performed according to the IEC/IEEE -Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -flag float32_lt_quiet( float32 a, float32 b ) -{ - flag aSign, bSign; - - if ( ( ( extractFloat32Exp( a ) == 0xFF ) && extractFloat32Frac( a ) ) - || ( ( extractFloat32Exp( b ) == 0xFF ) && extractFloat32Frac( b ) ) - ) { - if ( float32_is_signaling_nan( a ) || float32_is_signaling_nan( b ) ) { - float_raise( float_flag_invalid ); - } - return 0; - } - aSign = extractFloat32Sign( a ); - bSign = extractFloat32Sign( b ); - if ( aSign != bSign ) return aSign && ( (bits32) ( ( a | b )<<1 ) != 0 ); - return ( a != b ) && ( aSign ^ ( a < b ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the double-precision floating-point value -`a' to the 32-bit two's complement integer format. The conversion is -performed according to the IEC/IEEE Standard for Binary Floating-point -Arithmetic---which means in particular that the conversion is rounded -according to the current rounding mode. If `a' is a NaN, the largest -positive integer is returned. Otherwise, if the conversion overflows, the -largest integer with the same sign as `a' is returned. -------------------------------------------------------------------------------- -*/ -int32 float64_to_int32( float64 a ) -{ - flag aSign; - int16 aExp, shiftCount; - bits64 aSig; - - aSig = extractFloat64Frac( a ); - aExp = extractFloat64Exp( a ); - aSign = extractFloat64Sign( a ); - if ( ( aExp == 0x7FF ) && aSig ) aSign = 0; - if ( aExp ) aSig |= LIT64( 0x0010000000000000 ); - shiftCount = 0x42C - aExp; - if ( 0 < shiftCount ) shift64RightJamming( aSig, shiftCount, &aSig ); - return roundAndPackInt32( aSign, aSig ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the double-precision floating-point value -`a' to the 32-bit two's complement integer format. The conversion is -performed according to the IEC/IEEE Standard for Binary Floating-point -Arithmetic, except that the conversion is always rounded toward zero. If -`a' is a NaN, the largest positive integer is returned. Otherwise, if the -conversion overflows, the largest integer with the same sign as `a' is -returned. -------------------------------------------------------------------------------- -*/ -int32 float64_to_int32_round_to_zero( float64 a ) -{ - flag aSign; - int16 aExp, shiftCount; - bits64 aSig, savedASig; - int32 z; - - aSig = extractFloat64Frac( a ); - aExp = extractFloat64Exp( a ); - aSign = extractFloat64Sign( a ); - shiftCount = 0x433 - aExp; - if ( shiftCount < 21 ) { - if ( ( aExp == 0x7FF ) && aSig ) aSign = 0; - goto invalid; - } - else if ( 52 < shiftCount ) { - if ( aExp || aSig ) float_exception_flags |= float_flag_inexact; - return 0; - } - aSig |= LIT64( 0x0010000000000000 ); - savedASig = aSig; - aSig >>= shiftCount; - z = aSig; - if ( aSign ) z = - z; - if ( ( z < 0 ) ^ aSign ) { - invalid: - float_exception_flags |= float_flag_invalid; - return aSign ? 0x80000000 : 0x7FFFFFFF; - } - if ( ( aSig<>= shiftCount; - z = aSig; - if ( aSign ) z = - z; - if ( ( z < 0 ) ^ aSign ) { - invalid: - float_exception_flags |= float_flag_invalid; - return aSign ? 0x80000000 : 0x7FFFFFFF; - } - if ( ( aSig<>1; - if ( ( z & roundBitsMask ) == 0 ) z &= ~ lastBitMask; - } - else if ( roundingMode != float_round_to_zero ) { - if ( extractFloat64Sign( z ) ^ ( roundingMode == float_round_up ) ) { - z += roundBitsMask; - } - } - z &= ~ roundBitsMask; - if ( z != a ) float_exception_flags |= float_flag_inexact; - return z; - -} - -/* -------------------------------------------------------------------------------- -Returns the result of adding the absolute values of the double-precision -floating-point values `a' and `b'. If `zSign' is true, the sum is negated -before being returned. `zSign' is ignored if the result is a NaN. The -addition is performed according to the IEC/IEEE Standard for Binary -Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -static float64 addFloat64Sigs( float64 a, float64 b, flag zSign ) -{ - int16 aExp, bExp, zExp; - bits64 aSig, bSig, zSig; - int16 expDiff; - - aSig = extractFloat64Frac( a ); - aExp = extractFloat64Exp( a ); - bSig = extractFloat64Frac( b ); - bExp = extractFloat64Exp( b ); - expDiff = aExp - bExp; - aSig <<= 9; - bSig <<= 9; - if ( 0 < expDiff ) { - if ( aExp == 0x7FF ) { - if ( aSig ) return propagateFloat64NaN( a, b ); - return a; - } - if ( bExp == 0 ) { - --expDiff; - } - else { - bSig |= LIT64( 0x2000000000000000 ); - } - shift64RightJamming( bSig, expDiff, &bSig ); - zExp = aExp; - } - else if ( expDiff < 0 ) { - if ( bExp == 0x7FF ) { - if ( bSig ) return propagateFloat64NaN( a, b ); - return packFloat64( zSign, 0x7FF, 0 ); - } - if ( aExp == 0 ) { - ++expDiff; - } - else { - aSig |= LIT64( 0x2000000000000000 ); - } - shift64RightJamming( aSig, - expDiff, &aSig ); - zExp = bExp; - } - else { - if ( aExp == 0x7FF ) { - if ( aSig | bSig ) return propagateFloat64NaN( a, b ); - return a; - } - if ( aExp == 0 ) return packFloat64( zSign, 0, ( aSig + bSig )>>9 ); - zSig = LIT64( 0x4000000000000000 ) + aSig + bSig; - zExp = aExp; - goto roundAndPack; - } - aSig |= LIT64( 0x2000000000000000 ); - zSig = ( aSig + bSig )<<1; - --zExp; - if ( (sbits64) zSig < 0 ) { - zSig = aSig + bSig; - ++zExp; - } - roundAndPack: - return roundAndPackFloat64( zSign, zExp, zSig ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of subtracting the absolute values of the double- -precision floating-point values `a' and `b'. If `zSign' is true, the -difference is negated before being returned. `zSign' is ignored if the -result is a NaN. The subtraction is performed according to the IEC/IEEE -Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -static float64 subFloat64Sigs( float64 a, float64 b, flag zSign ) -{ - int16 aExp, bExp, zExp; - bits64 aSig, bSig, zSig; - int16 expDiff; - - aSig = extractFloat64Frac( a ); - aExp = extractFloat64Exp( a ); - bSig = extractFloat64Frac( b ); - bExp = extractFloat64Exp( b ); - expDiff = aExp - bExp; - aSig <<= 10; - bSig <<= 10; - if ( 0 < expDiff ) goto aExpBigger; - if ( expDiff < 0 ) goto bExpBigger; - if ( aExp == 0x7FF ) { - if ( aSig | bSig ) return propagateFloat64NaN( a, b ); - float_raise( float_flag_invalid ); - return float64_default_nan; - } - if ( aExp == 0 ) { - aExp = 1; - bExp = 1; - } - if ( bSig < aSig ) goto aBigger; - if ( aSig < bSig ) goto bBigger; - return packFloat64( float_rounding_mode == float_round_down, 0, 0 ); - bExpBigger: - if ( bExp == 0x7FF ) { - if ( bSig ) return propagateFloat64NaN( a, b ); - return packFloat64( zSign ^ 1, 0x7FF, 0 ); - } - if ( aExp == 0 ) { - ++expDiff; - } - else { - aSig |= LIT64( 0x4000000000000000 ); - } - shift64RightJamming( aSig, - expDiff, &aSig ); - bSig |= LIT64( 0x4000000000000000 ); - bBigger: - zSig = bSig - aSig; - zExp = bExp; - zSign ^= 1; - goto normalizeRoundAndPack; - aExpBigger: - if ( aExp == 0x7FF ) { - if ( aSig ) return propagateFloat64NaN( a, b ); - return a; - } - if ( bExp == 0 ) { - --expDiff; - } - else { - bSig |= LIT64( 0x4000000000000000 ); - } - shift64RightJamming( bSig, expDiff, &bSig ); - aSig |= LIT64( 0x4000000000000000 ); - aBigger: - zSig = aSig - bSig; - zExp = aExp; - normalizeRoundAndPack: - --zExp; - return normalizeRoundAndPackFloat64( zSign, zExp, zSig ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of adding the double-precision floating-point values `a' -and `b'. The operation is performed according to the IEC/IEEE Standard for -Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -float64 float64_add( float64 a, float64 b ) -{ - flag aSign, bSign; - - aSign = extractFloat64Sign( a ); - bSign = extractFloat64Sign( b ); - if ( aSign == bSign ) { - return addFloat64Sigs( a, b, aSign ); - } - else { - return subFloat64Sigs( a, b, aSign ); - } - -} - -/* -------------------------------------------------------------------------------- -Returns the result of subtracting the double-precision floating-point values -`a' and `b'. The operation is performed according to the IEC/IEEE Standard -for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -float64 float64_sub( float64 a, float64 b ) -{ - flag aSign, bSign; - - aSign = extractFloat64Sign( a ); - bSign = extractFloat64Sign( b ); - if ( aSign == bSign ) { - return subFloat64Sigs( a, b, aSign ); - } - else { - return addFloat64Sigs( a, b, aSign ); - } - -} - -/* -------------------------------------------------------------------------------- -Returns the result of multiplying the double-precision floating-point values -`a' and `b'. The operation is performed according to the IEC/IEEE Standard -for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -float64 float64_mul( float64 a, float64 b ) -{ - flag aSign, bSign, zSign; - int16 aExp, bExp, zExp; - bits64 aSig, bSig, zSig0, zSig1; - - aSig = extractFloat64Frac( a ); - aExp = extractFloat64Exp( a ); - aSign = extractFloat64Sign( a ); - bSig = extractFloat64Frac( b ); - bExp = extractFloat64Exp( b ); - bSign = extractFloat64Sign( b ); - zSign = aSign ^ bSign; - if ( aExp == 0x7FF ) { - if ( aSig || ( ( bExp == 0x7FF ) && bSig ) ) { - return propagateFloat64NaN( a, b ); - } - if ( ( bExp | bSig ) == 0 ) { - float_raise( float_flag_invalid ); - return float64_default_nan; - } - return packFloat64( zSign, 0x7FF, 0 ); - } - if ( bExp == 0x7FF ) { - if ( bSig ) return propagateFloat64NaN( a, b ); - if ( ( aExp | aSig ) == 0 ) { - float_raise( float_flag_invalid ); - return float64_default_nan; - } - return packFloat64( zSign, 0x7FF, 0 ); - } - if ( aExp == 0 ) { - if ( aSig == 0 ) return packFloat64( zSign, 0, 0 ); - normalizeFloat64Subnormal( aSig, &aExp, &aSig ); - } - if ( bExp == 0 ) { - if ( bSig == 0 ) return packFloat64( zSign, 0, 0 ); - normalizeFloat64Subnormal( bSig, &bExp, &bSig ); - } - zExp = aExp + bExp - 0x3FF; - aSig = ( aSig | LIT64( 0x0010000000000000 ) )<<10; - bSig = ( bSig | LIT64( 0x0010000000000000 ) )<<11; - mul64To128( aSig, bSig, &zSig0, &zSig1 ); - zSig0 |= ( zSig1 != 0 ); - if ( 0 <= (sbits64) ( zSig0<<1 ) ) { - zSig0 <<= 1; - --zExp; - } - return roundAndPackFloat64( zSign, zExp, zSig0 ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of dividing the double-precision floating-point value `a' -by the corresponding value `b'. The operation is performed according to -the IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -float64 float64_div( float64 a, float64 b ) -{ - flag aSign, bSign, zSign; - int16 aExp, bExp, zExp; - bits64 aSig, bSig, zSig; - bits64 rem0, rem1; - bits64 term0, term1; - - aSig = extractFloat64Frac( a ); - aExp = extractFloat64Exp( a ); - aSign = extractFloat64Sign( a ); - bSig = extractFloat64Frac( b ); - bExp = extractFloat64Exp( b ); - bSign = extractFloat64Sign( b ); - zSign = aSign ^ bSign; - if ( aExp == 0x7FF ) { - if ( aSig ) return propagateFloat64NaN( a, b ); - if ( bExp == 0x7FF ) { - if ( bSig ) return propagateFloat64NaN( a, b ); - float_raise( float_flag_invalid ); - return float64_default_nan; - } - return packFloat64( zSign, 0x7FF, 0 ); - } - if ( bExp == 0x7FF ) { - if ( bSig ) return propagateFloat64NaN( a, b ); - return packFloat64( zSign, 0, 0 ); - } - if ( bExp == 0 ) { - if ( bSig == 0 ) { - if ( ( aExp | aSig ) == 0 ) { - float_raise( float_flag_invalid ); - return float64_default_nan; - } - float_raise( float_flag_divbyzero ); - return packFloat64( zSign, 0x7FF, 0 ); - } - normalizeFloat64Subnormal( bSig, &bExp, &bSig ); - } - if ( aExp == 0 ) { - if ( aSig == 0 ) return packFloat64( zSign, 0, 0 ); - normalizeFloat64Subnormal( aSig, &aExp, &aSig ); - } - zExp = aExp - bExp + 0x3FD; - aSig = ( aSig | LIT64( 0x0010000000000000 ) )<<10; - bSig = ( bSig | LIT64( 0x0010000000000000 ) )<<11; - if ( bSig <= ( aSig + aSig ) ) { - aSig >>= 1; - ++zExp; - } - zSig = estimateDiv128To64( aSig, 0, bSig ); - if ( ( zSig & 0x1FF ) <= 2 ) { - mul64To128( bSig, zSig, &term0, &term1 ); - sub128( aSig, 0, term0, term1, &rem0, &rem1 ); - while ( (sbits64) rem0 < 0 ) { - --zSig; - add128( rem0, rem1, 0, bSig, &rem0, &rem1 ); - } - zSig |= ( rem1 != 0 ); - } - return roundAndPackFloat64( zSign, zExp, zSig ); - -} - -/* -------------------------------------------------------------------------------- -Returns the remainder of the double-precision floating-point value `a' -with respect to the corresponding value `b'. The operation is performed -according to the IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -float64 float64_rem( float64 a, float64 b ) -{ - flag aSign, bSign, zSign; - int16 aExp, bExp, expDiff; - bits64 aSig, bSig; - bits64 q, alternateASig; - sbits64 sigMean; - - aSig = extractFloat64Frac( a ); - aExp = extractFloat64Exp( a ); - aSign = extractFloat64Sign( a ); - bSig = extractFloat64Frac( b ); - bExp = extractFloat64Exp( b ); - bSign = extractFloat64Sign( b ); - if ( aExp == 0x7FF ) { - if ( aSig || ( ( bExp == 0x7FF ) && bSig ) ) { - return propagateFloat64NaN( a, b ); - } - float_raise( float_flag_invalid ); - return float64_default_nan; - } - if ( bExp == 0x7FF ) { - if ( bSig ) return propagateFloat64NaN( a, b ); - return a; - } - if ( bExp == 0 ) { - if ( bSig == 0 ) { - float_raise( float_flag_invalid ); - return float64_default_nan; - } - normalizeFloat64Subnormal( bSig, &bExp, &bSig ); - } - if ( aExp == 0 ) { - if ( aSig == 0 ) return a; - normalizeFloat64Subnormal( aSig, &aExp, &aSig ); - } - expDiff = aExp - bExp; - aSig = ( aSig | LIT64( 0x0010000000000000 ) )<<11; - bSig = ( bSig | LIT64( 0x0010000000000000 ) )<<11; - if ( expDiff < 0 ) { - if ( expDiff < -1 ) return a; - aSig >>= 1; - } - q = ( bSig <= aSig ); - if ( q ) aSig -= bSig; - expDiff -= 64; - while ( 0 < expDiff ) { - q = estimateDiv128To64( aSig, 0, bSig ); - q = ( 2 < q ) ? q - 2 : 0; - aSig = - ( ( bSig>>2 ) * q ); - expDiff -= 62; - } - expDiff += 64; - if ( 0 < expDiff ) { - q = estimateDiv128To64( aSig, 0, bSig ); - q = ( 2 < q ) ? q - 2 : 0; - q >>= 64 - expDiff; - bSig >>= 2; - aSig = ( ( aSig>>1 )<<( expDiff - 1 ) ) - bSig * q; - } - else { - aSig >>= 2; - bSig >>= 2; - } - do { - alternateASig = aSig; - ++q; - aSig -= bSig; - } while ( 0 <= (sbits64) aSig ); - sigMean = aSig + alternateASig; - if ( ( sigMean < 0 ) || ( ( sigMean == 0 ) && ( q & 1 ) ) ) { - aSig = alternateASig; - } - zSign = ( (sbits64) aSig < 0 ); - if ( zSign ) aSig = - aSig; - return normalizeRoundAndPackFloat64( aSign ^ zSign, bExp, aSig ); - -} - -/* -------------------------------------------------------------------------------- -Returns the square root of the double-precision floating-point value `a'. -The operation is performed according to the IEC/IEEE Standard for Binary -Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -float64 float64_sqrt( float64 a ) -{ - flag aSign; - int16 aExp, zExp; - bits64 aSig, zSig; - bits64 rem0, rem1, term0, term1; //, shiftedRem; - //float64 z; - - aSig = extractFloat64Frac( a ); - aExp = extractFloat64Exp( a ); - aSign = extractFloat64Sign( a ); - if ( aExp == 0x7FF ) { - if ( aSig ) return propagateFloat64NaN( a, a ); - if ( ! aSign ) return a; - float_raise( float_flag_invalid ); - return float64_default_nan; - } - if ( aSign ) { - if ( ( aExp | aSig ) == 0 ) return a; - float_raise( float_flag_invalid ); - return float64_default_nan; - } - if ( aExp == 0 ) { - if ( aSig == 0 ) return 0; - normalizeFloat64Subnormal( aSig, &aExp, &aSig ); - } - zExp = ( ( aExp - 0x3FF )>>1 ) + 0x3FE; - aSig |= LIT64( 0x0010000000000000 ); - zSig = estimateSqrt32( aExp, aSig>>21 ); - zSig <<= 31; - aSig <<= 9 - ( aExp & 1 ); - zSig = estimateDiv128To64( aSig, 0, zSig ) + zSig + 2; - if ( ( zSig & 0x3FF ) <= 5 ) { - if ( zSig < 2 ) { - zSig = LIT64( 0xFFFFFFFFFFFFFFFF ); - } - else { - aSig <<= 2; - mul64To128( zSig, zSig, &term0, &term1 ); - sub128( aSig, 0, term0, term1, &rem0, &rem1 ); - while ( (sbits64) rem0 < 0 ) { - --zSig; - shortShift128Left( 0, zSig, 1, &term0, &term1 ); - term1 |= 1; - add128( rem0, rem1, term0, term1, &rem0, &rem1 ); - } - zSig |= ( ( rem0 | rem1 ) != 0 ); - } - } - shift64RightJamming( zSig, 1, &zSig ); - return roundAndPackFloat64( 0, zExp, zSig ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the double-precision floating-point value `a' is equal to the -corresponding value `b', and 0 otherwise. The comparison is performed -according to the IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -flag float64_eq( float64 a, float64 b ) -{ - - if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) ) - || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) ) - ) { - if ( float64_is_signaling_nan( a ) || float64_is_signaling_nan( b ) ) { - float_raise( float_flag_invalid ); - } - return 0; - } - return ( a == b ) || ( (bits64) ( ( a | b )<<1 ) == 0 ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the double-precision floating-point value `a' is less than or -equal to the corresponding value `b', and 0 otherwise. The comparison is -performed according to the IEC/IEEE Standard for Binary Floating-point -Arithmetic. -------------------------------------------------------------------------------- -*/ -flag float64_le( float64 a, float64 b ) -{ - flag aSign, bSign; - - if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) ) - || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) ) - ) { - float_raise( float_flag_invalid ); - return 0; - } - aSign = extractFloat64Sign( a ); - bSign = extractFloat64Sign( b ); - if ( aSign != bSign ) return aSign || ( (bits64) ( ( a | b )<<1 ) == 0 ); - return ( a == b ) || ( aSign ^ ( a < b ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the double-precision floating-point value `a' is less than -the corresponding value `b', and 0 otherwise. The comparison is performed -according to the IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -flag float64_lt( float64 a, float64 b ) -{ - flag aSign, bSign; - - if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) ) - || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) ) - ) { - float_raise( float_flag_invalid ); - return 0; - } - aSign = extractFloat64Sign( a ); - bSign = extractFloat64Sign( b ); - if ( aSign != bSign ) return aSign && ( (bits64) ( ( a | b )<<1 ) != 0 ); - return ( a != b ) && ( aSign ^ ( a < b ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the double-precision floating-point value `a' is equal to the -corresponding value `b', and 0 otherwise. The invalid exception is raised -if either operand is a NaN. Otherwise, the comparison is performed -according to the IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -flag float64_eq_signaling( float64 a, float64 b ) -{ - - if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) ) - || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) ) - ) { - float_raise( float_flag_invalid ); - return 0; - } - return ( a == b ) || ( (bits64) ( ( a | b )<<1 ) == 0 ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the double-precision floating-point value `a' is less than or -equal to the corresponding value `b', and 0 otherwise. Quiet NaNs do not -cause an exception. Otherwise, the comparison is performed according to the -IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -flag float64_le_quiet( float64 a, float64 b ) -{ - flag aSign, bSign; - //int16 aExp, bExp; - - if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) ) - || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) ) - ) { - if ( float64_is_signaling_nan( a ) || float64_is_signaling_nan( b ) ) { - float_raise( float_flag_invalid ); - } - return 0; - } - aSign = extractFloat64Sign( a ); - bSign = extractFloat64Sign( b ); - if ( aSign != bSign ) return aSign || ( (bits64) ( ( a | b )<<1 ) == 0 ); - return ( a == b ) || ( aSign ^ ( a < b ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the double-precision floating-point value `a' is less than -the corresponding value `b', and 0 otherwise. Quiet NaNs do not cause an -exception. Otherwise, the comparison is performed according to the IEC/IEEE -Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -flag float64_lt_quiet( float64 a, float64 b ) -{ - flag aSign, bSign; - - if ( ( ( extractFloat64Exp( a ) == 0x7FF ) && extractFloat64Frac( a ) ) - || ( ( extractFloat64Exp( b ) == 0x7FF ) && extractFloat64Frac( b ) ) - ) { - if ( float64_is_signaling_nan( a ) || float64_is_signaling_nan( b ) ) { - float_raise( float_flag_invalid ); - } - return 0; - } - aSign = extractFloat64Sign( a ); - bSign = extractFloat64Sign( b ); - if ( aSign != bSign ) return aSign && ( (bits64) ( ( a | b )<<1 ) != 0 ); - return ( a != b ) && ( aSign ^ ( a < b ) ); - -} - -#ifdef FLOATX80 - -/* -------------------------------------------------------------------------------- -Returns the result of converting the extended double-precision floating- -point value `a' to the 32-bit two's complement integer format. The -conversion is performed according to the IEC/IEEE Standard for Binary -Floating-point Arithmetic---which means in particular that the conversion -is rounded according to the current rounding mode. If `a' is a NaN, the -largest positive integer is returned. Otherwise, if the conversion -overflows, the largest integer with the same sign as `a' is returned. -------------------------------------------------------------------------------- -*/ -int32 floatx80_to_int32( floatx80 a ) -{ - flag aSign; - int32 aExp, shiftCount; - bits64 aSig; - - aSig = extractFloatx80Frac( a ); - aExp = extractFloatx80Exp( a ); - aSign = extractFloatx80Sign( a ); - if ( ( aExp == 0x7FFF ) && (bits64) ( aSig<<1 ) ) aSign = 0; - shiftCount = 0x4037 - aExp; - if ( shiftCount <= 0 ) shiftCount = 1; - shift64RightJamming( aSig, shiftCount, &aSig ); - return roundAndPackInt32( aSign, aSig ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the extended double-precision floating- -point value `a' to the 32-bit two's complement integer format. The -conversion is performed according to the IEC/IEEE Standard for Binary -Floating-point Arithmetic, except that the conversion is always rounded -toward zero. If `a' is a NaN, the largest positive integer is returned. -Otherwise, if the conversion overflows, the largest integer with the same -sign as `a' is returned. -------------------------------------------------------------------------------- -*/ -int32 floatx80_to_int32_round_to_zero( floatx80 a ) -{ - flag aSign; - int32 aExp, shiftCount; - bits64 aSig, savedASig; - int32 z; - - aSig = extractFloatx80Frac( a ); - aExp = extractFloatx80Exp( a ); - aSign = extractFloatx80Sign( a ); - shiftCount = 0x403E - aExp; - if ( shiftCount < 32 ) { - if ( ( aExp == 0x7FFF ) && (bits64) ( aSig<<1 ) ) aSign = 0; - goto invalid; - } - else if ( 63 < shiftCount ) { - if ( aExp || aSig ) float_exception_flags |= float_flag_inexact; - return 0; - } - savedASig = aSig; - aSig >>= shiftCount; - z = aSig; - if ( aSign ) z = - z; - if ( ( z < 0 ) ^ aSign ) { - invalid: - float_exception_flags |= float_flag_invalid; - return aSign ? 0x80000000 : 0x7FFFFFFF; - } - if ( ( aSig<>1; - if ( ( z.low & roundBitsMask ) == 0 ) z.low &= ~ lastBitMask; - } - else if ( roundingMode != float_round_to_zero ) { - if ( extractFloatx80Sign( z ) ^ ( roundingMode == float_round_up ) ) { - z.low += roundBitsMask; - } - } - z.low &= ~ roundBitsMask; - if ( z.low == 0 ) { - ++z.high; - z.low = LIT64( 0x8000000000000000 ); - } - if ( z.low != a.low ) float_exception_flags |= float_flag_inexact; - return z; - -} - -/* -------------------------------------------------------------------------------- -Returns the result of adding the absolute values of the extended double- -precision floating-point values `a' and `b'. If `zSign' is true, the sum is -negated before being returned. `zSign' is ignored if the result is a NaN. -The addition is performed according to the IEC/IEEE Standard for Binary -Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -static floatx80 addFloatx80Sigs( floatx80 a, floatx80 b, flag zSign ) -{ - int32 aExp, bExp, zExp; - bits64 aSig, bSig, zSig0, zSig1; - int32 expDiff; - - aSig = extractFloatx80Frac( a ); - aExp = extractFloatx80Exp( a ); - bSig = extractFloatx80Frac( b ); - bExp = extractFloatx80Exp( b ); - expDiff = aExp - bExp; - if ( 0 < expDiff ) { - if ( aExp == 0x7FFF ) { - if ( (bits64) ( aSig<<1 ) ) return propagateFloatx80NaN( a, b ); - return a; - } - if ( bExp == 0 ) --expDiff; - shift64ExtraRightJamming( bSig, 0, expDiff, &bSig, &zSig1 ); - zExp = aExp; - } - else if ( expDiff < 0 ) { - if ( bExp == 0x7FFF ) { - if ( (bits64) ( bSig<<1 ) ) return propagateFloatx80NaN( a, b ); - return packFloatx80( zSign, 0x7FFF, LIT64( 0x8000000000000000 ) ); - } - if ( aExp == 0 ) ++expDiff; - shift64ExtraRightJamming( aSig, 0, - expDiff, &aSig, &zSig1 ); - zExp = bExp; - } - else { - if ( aExp == 0x7FFF ) { - if ( (bits64) ( ( aSig | bSig )<<1 ) ) { - return propagateFloatx80NaN( a, b ); - } - return a; - } - zSig1 = 0; - zSig0 = aSig + bSig; - if ( aExp == 0 ) { - normalizeFloatx80Subnormal( zSig0, &zExp, &zSig0 ); - goto roundAndPack; - } - zExp = aExp; - goto shiftRight1; - } - - zSig0 = aSig + bSig; - - if ( (sbits64) zSig0 < 0 ) goto roundAndPack; - shiftRight1: - shift64ExtraRightJamming( zSig0, zSig1, 1, &zSig0, &zSig1 ); - zSig0 |= LIT64( 0x8000000000000000 ); - ++zExp; - roundAndPack: - return - roundAndPackFloatx80( - floatx80_rounding_precision, zSign, zExp, zSig0, zSig1 ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of subtracting the absolute values of the extended -double-precision floating-point values `a' and `b'. If `zSign' is true, -the difference is negated before being returned. `zSign' is ignored if the -result is a NaN. The subtraction is performed according to the IEC/IEEE -Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -static floatx80 subFloatx80Sigs( floatx80 a, floatx80 b, flag zSign ) -{ - int32 aExp, bExp, zExp; - bits64 aSig, bSig, zSig0, zSig1; - int32 expDiff; - floatx80 z; - - aSig = extractFloatx80Frac( a ); - aExp = extractFloatx80Exp( a ); - bSig = extractFloatx80Frac( b ); - bExp = extractFloatx80Exp( b ); - expDiff = aExp - bExp; - if ( 0 < expDiff ) goto aExpBigger; - if ( expDiff < 0 ) goto bExpBigger; - if ( aExp == 0x7FFF ) { - if ( (bits64) ( ( aSig | bSig )<<1 ) ) { - return propagateFloatx80NaN( a, b ); - } - float_raise( float_flag_invalid ); - z.low = floatx80_default_nan_low; - z.high = floatx80_default_nan_high; - return z; - } - if ( aExp == 0 ) { - aExp = 1; - bExp = 1; - } - zSig1 = 0; - if ( bSig < aSig ) goto aBigger; - if ( aSig < bSig ) goto bBigger; - return packFloatx80( float_rounding_mode == float_round_down, 0, 0 ); - bExpBigger: - if ( bExp == 0x7FFF ) { - if ( (bits64) ( bSig<<1 ) ) return propagateFloatx80NaN( a, b ); - return packFloatx80( zSign ^ 1, 0x7FFF, LIT64( 0x8000000000000000 ) ); - } - if ( aExp == 0 ) ++expDiff; - shift128RightJamming( aSig, 0, - expDiff, &aSig, &zSig1 ); - bBigger: - sub128( bSig, 0, aSig, zSig1, &zSig0, &zSig1 ); - zExp = bExp; - zSign ^= 1; - goto normalizeRoundAndPack; - aExpBigger: - if ( aExp == 0x7FFF ) { - if ( (bits64) ( aSig<<1 ) ) return propagateFloatx80NaN( a, b ); - return a; - } - if ( bExp == 0 ) --expDiff; - shift128RightJamming( bSig, 0, expDiff, &bSig, &zSig1 ); - aBigger: - sub128( aSig, 0, bSig, zSig1, &zSig0, &zSig1 ); - zExp = aExp; - normalizeRoundAndPack: - return - normalizeRoundAndPackFloatx80( - floatx80_rounding_precision, zSign, zExp, zSig0, zSig1 ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of adding the extended double-precision floating-point -values `a' and `b'. The operation is performed according to the IEC/IEEE -Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -floatx80 floatx80_add( floatx80 a, floatx80 b ) -{ - flag aSign, bSign; - - aSign = extractFloatx80Sign( a ); - bSign = extractFloatx80Sign( b ); - if ( aSign == bSign ) { - return addFloatx80Sigs( a, b, aSign ); - } - else { - return subFloatx80Sigs( a, b, aSign ); - } - -} - -/* -------------------------------------------------------------------------------- -Returns the result of subtracting the extended double-precision floating- -point values `a' and `b'. The operation is performed according to the -IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -floatx80 floatx80_sub( floatx80 a, floatx80 b ) -{ - flag aSign, bSign; - - aSign = extractFloatx80Sign( a ); - bSign = extractFloatx80Sign( b ); - if ( aSign == bSign ) { - return subFloatx80Sigs( a, b, aSign ); - } - else { - return addFloatx80Sigs( a, b, aSign ); - } - -} - -/* -------------------------------------------------------------------------------- -Returns the result of multiplying the extended double-precision floating- -point values `a' and `b'. The operation is performed according to the -IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -floatx80 floatx80_mul( floatx80 a, floatx80 b ) -{ - flag aSign, bSign, zSign; - int32 aExp, bExp, zExp; - bits64 aSig, bSig, zSig0, zSig1; - floatx80 z; - - aSig = extractFloatx80Frac( a ); - aExp = extractFloatx80Exp( a ); - aSign = extractFloatx80Sign( a ); - bSig = extractFloatx80Frac( b ); - bExp = extractFloatx80Exp( b ); - bSign = extractFloatx80Sign( b ); - zSign = aSign ^ bSign; - if ( aExp == 0x7FFF ) { - if ( (bits64) ( aSig<<1 ) - || ( ( bExp == 0x7FFF ) && (bits64) ( bSig<<1 ) ) ) { - return propagateFloatx80NaN( a, b ); - } - if ( ( bExp | bSig ) == 0 ) goto invalid; - return packFloatx80( zSign, 0x7FFF, LIT64( 0x8000000000000000 ) ); - } - if ( bExp == 0x7FFF ) { - if ( (bits64) ( bSig<<1 ) ) return propagateFloatx80NaN( a, b ); - if ( ( aExp | aSig ) == 0 ) { - invalid: - float_raise( float_flag_invalid ); - z.low = floatx80_default_nan_low; - z.high = floatx80_default_nan_high; - return z; - } - return packFloatx80( zSign, 0x7FFF, LIT64( 0x8000000000000000 ) ); - } - if ( aExp == 0 ) { - if ( aSig == 0 ) return packFloatx80( zSign, 0, 0 ); - normalizeFloatx80Subnormal( aSig, &aExp, &aSig ); - } - if ( bExp == 0 ) { - if ( bSig == 0 ) return packFloatx80( zSign, 0, 0 ); - normalizeFloatx80Subnormal( bSig, &bExp, &bSig ); - } - zExp = aExp + bExp - 0x3FFE; - mul64To128( aSig, bSig, &zSig0, &zSig1 ); - if ( 0 < (sbits64) zSig0 ) { - shortShift128Left( zSig0, zSig1, 1, &zSig0, &zSig1 ); - --zExp; - } - return - roundAndPackFloatx80( - floatx80_rounding_precision, zSign, zExp, zSig0, zSig1 ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of dividing the extended double-precision floating-point -value `a' by the corresponding value `b'. The operation is performed -according to the IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -floatx80 floatx80_div( floatx80 a, floatx80 b ) -{ - flag aSign, bSign, zSign; - int32 aExp, bExp, zExp; - bits64 aSig, bSig, zSig0, zSig1; - bits64 rem0, rem1, rem2, term0, term1, term2; - floatx80 z; - - aSig = extractFloatx80Frac( a ); - aExp = extractFloatx80Exp( a ); - aSign = extractFloatx80Sign( a ); - bSig = extractFloatx80Frac( b ); - bExp = extractFloatx80Exp( b ); - bSign = extractFloatx80Sign( b ); - zSign = aSign ^ bSign; - if ( aExp == 0x7FFF ) { - if ( (bits64) ( aSig<<1 ) ) return propagateFloatx80NaN( a, b ); - if ( bExp == 0x7FFF ) { - if ( (bits64) ( bSig<<1 ) ) return propagateFloatx80NaN( a, b ); - goto invalid; - } - return packFloatx80( zSign, 0x7FFF, LIT64( 0x8000000000000000 ) ); - } - if ( bExp == 0x7FFF ) { - if ( (bits64) ( bSig<<1 ) ) return propagateFloatx80NaN( a, b ); - return packFloatx80( zSign, 0, 0 ); - } - if ( bExp == 0 ) { - if ( bSig == 0 ) { - if ( ( aExp | aSig ) == 0 ) { - invalid: - float_raise( float_flag_invalid ); - z.low = floatx80_default_nan_low; - z.high = floatx80_default_nan_high; - return z; - } - float_raise( float_flag_divbyzero ); - return packFloatx80( zSign, 0x7FFF, LIT64( 0x8000000000000000 ) ); - } - normalizeFloatx80Subnormal( bSig, &bExp, &bSig ); - } - if ( aExp == 0 ) { - if ( aSig == 0 ) return packFloatx80( zSign, 0, 0 ); - normalizeFloatx80Subnormal( aSig, &aExp, &aSig ); - } - zExp = aExp - bExp + 0x3FFE; - rem1 = 0; - if ( bSig <= aSig ) { - shift128Right( aSig, 0, 1, &aSig, &rem1 ); - ++zExp; - } - zSig0 = estimateDiv128To64( aSig, rem1, bSig ); - mul64To128( bSig, zSig0, &term0, &term1 ); - sub128( aSig, rem1, term0, term1, &rem0, &rem1 ); - while ( (sbits64) rem0 < 0 ) { - --zSig0; - add128( rem0, rem1, 0, bSig, &rem0, &rem1 ); - } - zSig1 = estimateDiv128To64( rem1, 0, bSig ); - if ( (bits64) ( zSig1<<1 ) <= 8 ) { - mul64To128( bSig, zSig1, &term1, &term2 ); - sub128( rem1, 0, term1, term2, &rem1, &rem2 ); - while ( (sbits64) rem1 < 0 ) { - --zSig1; - add128( rem1, rem2, 0, bSig, &rem1, &rem2 ); - } - zSig1 |= ( ( rem1 | rem2 ) != 0 ); - } - return - roundAndPackFloatx80( - floatx80_rounding_precision, zSign, zExp, zSig0, zSig1 ); - -} - -/* -------------------------------------------------------------------------------- -Returns the remainder of the extended double-precision floating-point value -`a' with respect to the corresponding value `b'. The operation is performed -according to the IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -floatx80 floatx80_rem( floatx80 a, floatx80 b ) -{ - flag aSign, bSign, zSign; - int32 aExp, bExp, expDiff; - bits64 aSig0, aSig1, bSig; - bits64 q, term0, term1, alternateASig0, alternateASig1; - floatx80 z; - - aSig0 = extractFloatx80Frac( a ); - aExp = extractFloatx80Exp( a ); - aSign = extractFloatx80Sign( a ); - bSig = extractFloatx80Frac( b ); - bExp = extractFloatx80Exp( b ); - bSign = extractFloatx80Sign( b ); - if ( aExp == 0x7FFF ) { - if ( (bits64) ( aSig0<<1 ) - || ( ( bExp == 0x7FFF ) && (bits64) ( bSig<<1 ) ) ) { - return propagateFloatx80NaN( a, b ); - } - goto invalid; - } - if ( bExp == 0x7FFF ) { - if ( (bits64) ( bSig<<1 ) ) return propagateFloatx80NaN( a, b ); - return a; - } - if ( bExp == 0 ) { - if ( bSig == 0 ) { - invalid: - float_raise( float_flag_invalid ); - z.low = floatx80_default_nan_low; - z.high = floatx80_default_nan_high; - return z; - } - normalizeFloatx80Subnormal( bSig, &bExp, &bSig ); - } - if ( aExp == 0 ) { - if ( (bits64) ( aSig0<<1 ) == 0 ) return a; - normalizeFloatx80Subnormal( aSig0, &aExp, &aSig0 ); - } - bSig |= LIT64( 0x8000000000000000 ); - zSign = aSign; - expDiff = aExp - bExp; - aSig1 = 0; - if ( expDiff < 0 ) { - if ( expDiff < -1 ) return a; - shift128Right( aSig0, 0, 1, &aSig0, &aSig1 ); - expDiff = 0; - } - q = ( bSig <= aSig0 ); - if ( q ) aSig0 -= bSig; - expDiff -= 64; - while ( 0 < expDiff ) { - q = estimateDiv128To64( aSig0, aSig1, bSig ); - q = ( 2 < q ) ? q - 2 : 0; - mul64To128( bSig, q, &term0, &term1 ); - sub128( aSig0, aSig1, term0, term1, &aSig0, &aSig1 ); - shortShift128Left( aSig0, aSig1, 62, &aSig0, &aSig1 ); - expDiff -= 62; - } - expDiff += 64; - if ( 0 < expDiff ) { - q = estimateDiv128To64( aSig0, aSig1, bSig ); - q = ( 2 < q ) ? q - 2 : 0; - q >>= 64 - expDiff; - mul64To128( bSig, q<<( 64 - expDiff ), &term0, &term1 ); - sub128( aSig0, aSig1, term0, term1, &aSig0, &aSig1 ); - shortShift128Left( 0, bSig, 64 - expDiff, &term0, &term1 ); - while ( le128( term0, term1, aSig0, aSig1 ) ) { - ++q; - sub128( aSig0, aSig1, term0, term1, &aSig0, &aSig1 ); - } - } - else { - term1 = 0; - term0 = bSig; - } - sub128( term0, term1, aSig0, aSig1, &alternateASig0, &alternateASig1 ); - if ( lt128( alternateASig0, alternateASig1, aSig0, aSig1 ) - || ( eq128( alternateASig0, alternateASig1, aSig0, aSig1 ) - && ( q & 1 ) ) - ) { - aSig0 = alternateASig0; - aSig1 = alternateASig1; - zSign = ! zSign; - } - return - normalizeRoundAndPackFloatx80( - 80, zSign, bExp + expDiff, aSig0, aSig1 ); - -} - -/* -------------------------------------------------------------------------------- -Returns the square root of the extended double-precision floating-point -value `a'. The operation is performed according to the IEC/IEEE Standard -for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -floatx80 floatx80_sqrt( floatx80 a ) -{ - flag aSign; - int32 aExp, zExp; - bits64 aSig0, aSig1, zSig0, zSig1; - bits64 rem0, rem1, rem2, rem3, term0, term1, term2, term3; - bits64 shiftedRem0, shiftedRem1; - floatx80 z; - - aSig0 = extractFloatx80Frac( a ); - aExp = extractFloatx80Exp( a ); - aSign = extractFloatx80Sign( a ); - if ( aExp == 0x7FFF ) { - if ( (bits64) ( aSig0<<1 ) ) return propagateFloatx80NaN( a, a ); - if ( ! aSign ) return a; - goto invalid; - } - if ( aSign ) { - if ( ( aExp | aSig0 ) == 0 ) return a; - invalid: - float_raise( float_flag_invalid ); - z.low = floatx80_default_nan_low; - z.high = floatx80_default_nan_high; - return z; - } - if ( aExp == 0 ) { - if ( aSig0 == 0 ) return packFloatx80( 0, 0, 0 ); - normalizeFloatx80Subnormal( aSig0, &aExp, &aSig0 ); - } - zExp = ( ( aExp - 0x3FFF )>>1 ) + 0x3FFF; - zSig0 = estimateSqrt32( aExp, aSig0>>32 ); - zSig0 <<= 31; - aSig1 = 0; - shift128Right( aSig0, 0, ( aExp & 1 ) + 2, &aSig0, &aSig1 ); - zSig0 = estimateDiv128To64( aSig0, aSig1, zSig0 ) + zSig0 + 4; - if ( 0 <= (sbits64) zSig0 ) zSig0 = LIT64( 0xFFFFFFFFFFFFFFFF ); - shortShift128Left( aSig0, aSig1, 2, &aSig0, &aSig1 ); - mul64To128( zSig0, zSig0, &term0, &term1 ); - sub128( aSig0, aSig1, term0, term1, &rem0, &rem1 ); - while ( (sbits64) rem0 < 0 ) { - --zSig0; - shortShift128Left( 0, zSig0, 1, &term0, &term1 ); - term1 |= 1; - add128( rem0, rem1, term0, term1, &rem0, &rem1 ); - } - shortShift128Left( rem0, rem1, 63, &shiftedRem0, &shiftedRem1 ); - zSig1 = estimateDiv128To64( shiftedRem0, shiftedRem1, zSig0 ); - if ( (bits64) ( zSig1<<1 ) <= 10 ) { - if ( zSig1 == 0 ) zSig1 = 1; - mul64To128( zSig0, zSig1, &term1, &term2 ); - shortShift128Left( term1, term2, 1, &term1, &term2 ); - sub128( rem1, 0, term1, term2, &rem1, &rem2 ); - mul64To128( zSig1, zSig1, &term2, &term3 ); - sub192( rem1, rem2, 0, 0, term2, term3, &rem1, &rem2, &rem3 ); - while ( (sbits64) rem1 < 0 ) { - --zSig1; - shortShift192Left( 0, zSig0, zSig1, 1, &term1, &term2, &term3 ); - term3 |= 1; - add192( - rem1, rem2, rem3, term1, term2, term3, &rem1, &rem2, &rem3 ); - } - zSig1 |= ( ( rem1 | rem2 | rem3 ) != 0 ); - } - return - roundAndPackFloatx80( - floatx80_rounding_precision, 0, zExp, zSig0, zSig1 ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the extended double-precision floating-point value `a' is -equal to the corresponding value `b', and 0 otherwise. The comparison is -performed according to the IEC/IEEE Standard for Binary Floating-point -Arithmetic. -------------------------------------------------------------------------------- -*/ -flag floatx80_eq( floatx80 a, floatx80 b ) -{ - - if ( ( ( extractFloatx80Exp( a ) == 0x7FFF ) - && (bits64) ( extractFloatx80Frac( a )<<1 ) ) - || ( ( extractFloatx80Exp( b ) == 0x7FFF ) - && (bits64) ( extractFloatx80Frac( b )<<1 ) ) - ) { - if ( floatx80_is_signaling_nan( a ) - || floatx80_is_signaling_nan( b ) ) { - float_raise( float_flag_invalid ); - } - return 0; - } - return - ( a.low == b.low ) - && ( ( a.high == b.high ) - || ( ( a.low == 0 ) - && ( (bits16) ( ( a.high | b.high )<<1 ) == 0 ) ) - ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the extended double-precision floating-point value `a' is -less than or equal to the corresponding value `b', and 0 otherwise. The -comparison is performed according to the IEC/IEEE Standard for Binary -Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -flag floatx80_le( floatx80 a, floatx80 b ) -{ - flag aSign, bSign; - - if ( ( ( extractFloatx80Exp( a ) == 0x7FFF ) - && (bits64) ( extractFloatx80Frac( a )<<1 ) ) - || ( ( extractFloatx80Exp( b ) == 0x7FFF ) - && (bits64) ( extractFloatx80Frac( b )<<1 ) ) - ) { - float_raise( float_flag_invalid ); - return 0; - } - aSign = extractFloatx80Sign( a ); - bSign = extractFloatx80Sign( b ); - if ( aSign != bSign ) { - return - aSign - || ( ( ( (bits16) ( ( a.high | b.high )<<1 ) ) | a.low | b.low ) - == 0 ); - } - return - aSign ? le128( b.high, b.low, a.high, a.low ) - : le128( a.high, a.low, b.high, b.low ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the extended double-precision floating-point value `a' is -less than the corresponding value `b', and 0 otherwise. The comparison -is performed according to the IEC/IEEE Standard for Binary Floating-point -Arithmetic. -------------------------------------------------------------------------------- -*/ -flag floatx80_lt( floatx80 a, floatx80 b ) -{ - flag aSign, bSign; - - if ( ( ( extractFloatx80Exp( a ) == 0x7FFF ) - && (bits64) ( extractFloatx80Frac( a )<<1 ) ) - || ( ( extractFloatx80Exp( b ) == 0x7FFF ) - && (bits64) ( extractFloatx80Frac( b )<<1 ) ) - ) { - float_raise( float_flag_invalid ); - return 0; - } - aSign = extractFloatx80Sign( a ); - bSign = extractFloatx80Sign( b ); - if ( aSign != bSign ) { - return - aSign - && ( ( ( (bits16) ( ( a.high | b.high )<<1 ) ) | a.low | b.low ) - != 0 ); - } - return - aSign ? lt128( b.high, b.low, a.high, a.low ) - : lt128( a.high, a.low, b.high, b.low ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the extended double-precision floating-point value `a' is equal -to the corresponding value `b', and 0 otherwise. The invalid exception is -raised if either operand is a NaN. Otherwise, the comparison is performed -according to the IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -flag floatx80_eq_signaling( floatx80 a, floatx80 b ) -{ - - if ( ( ( extractFloatx80Exp( a ) == 0x7FFF ) - && (bits64) ( extractFloatx80Frac( a )<<1 ) ) - || ( ( extractFloatx80Exp( b ) == 0x7FFF ) - && (bits64) ( extractFloatx80Frac( b )<<1 ) ) - ) { - float_raise( float_flag_invalid ); - return 0; - } - return - ( a.low == b.low ) - && ( ( a.high == b.high ) - || ( ( a.low == 0 ) - && ( (bits16) ( ( a.high | b.high )<<1 ) == 0 ) ) - ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the extended double-precision floating-point value `a' is less -than or equal to the corresponding value `b', and 0 otherwise. Quiet NaNs -do not cause an exception. Otherwise, the comparison is performed according -to the IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -flag floatx80_le_quiet( floatx80 a, floatx80 b ) -{ - flag aSign, bSign; - - if ( ( ( extractFloatx80Exp( a ) == 0x7FFF ) - && (bits64) ( extractFloatx80Frac( a )<<1 ) ) - || ( ( extractFloatx80Exp( b ) == 0x7FFF ) - && (bits64) ( extractFloatx80Frac( b )<<1 ) ) - ) { - if ( floatx80_is_signaling_nan( a ) - || floatx80_is_signaling_nan( b ) ) { - float_raise( float_flag_invalid ); - } - return 0; - } - aSign = extractFloatx80Sign( a ); - bSign = extractFloatx80Sign( b ); - if ( aSign != bSign ) { - return - aSign - || ( ( ( (bits16) ( ( a.high | b.high )<<1 ) ) | a.low | b.low ) - == 0 ); - } - return - aSign ? le128( b.high, b.low, a.high, a.low ) - : le128( a.high, a.low, b.high, b.low ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the extended double-precision floating-point value `a' is less -than the corresponding value `b', and 0 otherwise. Quiet NaNs do not cause -an exception. Otherwise, the comparison is performed according to the -IEC/IEEE Standard for Binary Floating-point Arithmetic. -------------------------------------------------------------------------------- -*/ -flag floatx80_lt_quiet( floatx80 a, floatx80 b ) -{ - flag aSign, bSign; - - if ( ( ( extractFloatx80Exp( a ) == 0x7FFF ) - && (bits64) ( extractFloatx80Frac( a )<<1 ) ) - || ( ( extractFloatx80Exp( b ) == 0x7FFF ) - && (bits64) ( extractFloatx80Frac( b )<<1 ) ) - ) { - if ( floatx80_is_signaling_nan( a ) - || floatx80_is_signaling_nan( b ) ) { - float_raise( float_flag_invalid ); - } - return 0; - } - aSign = extractFloatx80Sign( a ); - bSign = extractFloatx80Sign( b ); - if ( aSign != bSign ) { - return - aSign - && ( ( ( (bits16) ( ( a.high | b.high )<<1 ) ) | a.low | b.low ) - != 0 ); - } - return - aSign ? lt128( b.high, b.low, a.high, a.low ) - : lt128( a.high, a.low, b.high, b.low ); - -} - -#endif - diff --git a/trunk/arch/arm26/nwfpe/softfloat.h b/trunk/arch/arm26/nwfpe/softfloat.h deleted file mode 100644 index 22c2193a4997..000000000000 --- a/trunk/arch/arm26/nwfpe/softfloat.h +++ /dev/null @@ -1,232 +0,0 @@ - -/* -=============================================================================== - -This C header file is part of the SoftFloat IEC/IEEE Floating-point -Arithmetic Package, Release 2. - -Written by John R. Hauser. This work was made possible in part by the -International Computer Science Institute, located at Suite 600, 1947 Center -Street, Berkeley, California 94704. Funding was partially provided by the -National Science Foundation under grant MIP-9311980. The original version -of this code was written as part of a project to build a fixed-point vector -processor in collaboration with the University of California at Berkeley, -overseen by Profs. Nelson Morgan and John Wawrzynek. More information -is available through the Web page `http://HTTP.CS.Berkeley.EDU/~jhauser/ -arithmetic/softfloat.html'. - -THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort -has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT -TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO -PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY -AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE. - -Derivative works are acceptable, even for commercial purposes, so long as -(1) they include prominent notice that the work is derivative, and (2) they -include prominent notice akin to these three paragraphs for those parts of -this code that are retained. - -=============================================================================== -*/ - -#ifndef __SOFTFLOAT_H__ -#define __SOFTFLOAT_H__ - -/* -------------------------------------------------------------------------------- -The macro `FLOATX80' must be defined to enable the extended double-precision -floating-point format `floatx80'. If this macro is not defined, the -`floatx80' type will not be defined, and none of the functions that either -input or output the `floatx80' type will be defined. -------------------------------------------------------------------------------- -*/ -#define FLOATX80 - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE floating-point types. -------------------------------------------------------------------------------- -*/ -typedef unsigned long int float32; -typedef unsigned long long float64; -typedef struct { - unsigned short high; - unsigned long long low; -} floatx80; - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE floating-point underflow tininess-detection mode. -------------------------------------------------------------------------------- -*/ -extern signed char float_detect_tininess; -enum { - float_tininess_after_rounding = 0, - float_tininess_before_rounding = 1 -}; - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE floating-point rounding mode. -------------------------------------------------------------------------------- -*/ -extern signed char float_rounding_mode; -enum { - float_round_nearest_even = 0, - float_round_to_zero = 1, - float_round_down = 2, - float_round_up = 3 -}; - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE floating-point exception flags. -------------------------------------------------------------------------------- -extern signed char float_exception_flags; -enum { - float_flag_inexact = 1, - float_flag_underflow = 2, - float_flag_overflow = 4, - float_flag_divbyzero = 8, - float_flag_invalid = 16 -}; - -ScottB: November 4, 1998 -Changed the enumeration to match the bit order in the FPA11. -*/ - -extern signed char float_exception_flags; -enum { - float_flag_invalid = 1, - float_flag_divbyzero = 2, - float_flag_overflow = 4, - float_flag_underflow = 8, - float_flag_inexact = 16 -}; - -/* -------------------------------------------------------------------------------- -Routine to raise any or all of the software IEC/IEEE floating-point -exception flags. -------------------------------------------------------------------------------- -*/ -void float_raise( signed char ); - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE integer-to-floating-point conversion routines. -------------------------------------------------------------------------------- -*/ -float32 int32_to_float32( signed int ); -float64 int32_to_float64( signed int ); -#ifdef FLOATX80 -floatx80 int32_to_floatx80( signed int ); -#endif - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE single-precision conversion routines. -------------------------------------------------------------------------------- -*/ -signed int float32_to_int32( float32 ); -signed int float32_to_int32_round_to_zero( float32 ); -float64 float32_to_float64( float32 ); -#ifdef FLOATX80 -floatx80 float32_to_floatx80( float32 ); -#endif - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE single-precision operations. -------------------------------------------------------------------------------- -*/ -float32 float32_round_to_int( float32 ); -float32 float32_add( float32, float32 ); -float32 float32_sub( float32, float32 ); -float32 float32_mul( float32, float32 ); -float32 float32_div( float32, float32 ); -float32 float32_rem( float32, float32 ); -float32 float32_sqrt( float32 ); -char float32_eq( float32, float32 ); -char float32_le( float32, float32 ); -char float32_lt( float32, float32 ); -char float32_eq_signaling( float32, float32 ); -char float32_le_quiet( float32, float32 ); -char float32_lt_quiet( float32, float32 ); -char float32_is_signaling_nan( float32 ); - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE double-precision conversion routines. -------------------------------------------------------------------------------- -*/ -signed int float64_to_int32( float64 ); -signed int float64_to_int32_round_to_zero( float64 ); -float32 float64_to_float32( float64 ); -#ifdef FLOATX80 -floatx80 float64_to_floatx80( float64 ); -#endif - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE double-precision operations. -------------------------------------------------------------------------------- -*/ -float64 float64_round_to_int( float64 ); -float64 float64_add( float64, float64 ); -float64 float64_sub( float64, float64 ); -float64 float64_mul( float64, float64 ); -float64 float64_div( float64, float64 ); -float64 float64_rem( float64, float64 ); -float64 float64_sqrt( float64 ); -char float64_eq( float64, float64 ); -char float64_le( float64, float64 ); -char float64_lt( float64, float64 ); -char float64_eq_signaling( float64, float64 ); -char float64_le_quiet( float64, float64 ); -char float64_lt_quiet( float64, float64 ); -char float64_is_signaling_nan( float64 ); - -#ifdef FLOATX80 - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE extended double-precision conversion routines. -------------------------------------------------------------------------------- -*/ -signed int floatx80_to_int32( floatx80 ); -signed int floatx80_to_int32_round_to_zero( floatx80 ); -float32 floatx80_to_float32( floatx80 ); -float64 floatx80_to_float64( floatx80 ); - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE extended double-precision rounding precision. Valid -values are 32, 64, and 80. -------------------------------------------------------------------------------- -*/ -extern signed char floatx80_rounding_precision; - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE extended double-precision operations. -------------------------------------------------------------------------------- -*/ -floatx80 floatx80_round_to_int( floatx80 ); -floatx80 floatx80_add( floatx80, floatx80 ); -floatx80 floatx80_sub( floatx80, floatx80 ); -floatx80 floatx80_mul( floatx80, floatx80 ); -floatx80 floatx80_div( floatx80, floatx80 ); -floatx80 floatx80_rem( floatx80, floatx80 ); -floatx80 floatx80_sqrt( floatx80 ); -char floatx80_eq( floatx80, floatx80 ); -char floatx80_le( floatx80, floatx80 ); -char floatx80_lt( floatx80, floatx80 ); -char floatx80_eq_signaling( floatx80, floatx80 ); -char floatx80_le_quiet( floatx80, floatx80 ); -char floatx80_lt_quiet( floatx80, floatx80 ); -char floatx80_is_signaling_nan( floatx80 ); - -#endif - -#endif diff --git a/trunk/arch/i386/Kconfig b/trunk/arch/i386/Kconfig index 5c8a845a4129..f9524933258a 100644 --- a/trunk/arch/i386/Kconfig +++ b/trunk/arch/i386/Kconfig @@ -458,8 +458,7 @@ config MICROCODE tristate "/dev/cpu/microcode - Intel IA32 CPU microcode support" select FW_LOADER ---help--- - If you say Y here and also to "/dev file system support" in the - 'File systems' section, you will be able to update the microcode on + If you say Y here, you will be able to update the microcode on Intel processors in the IA32 family, e.g. Pentium Pro, Pentium II, Pentium III, Pentium 4, Xeon etc. You will obviously need the actual microcode binary data itself which is not shipped with the diff --git a/trunk/arch/i386/boot/install.sh b/trunk/arch/i386/boot/install.sh index 5e44c736eea8..88d77761d01b 100644 --- a/trunk/arch/i386/boot/install.sh +++ b/trunk/arch/i386/boot/install.sh @@ -51,4 +51,11 @@ fi cat $2 > $4/vmlinuz cp $3 $4/System.map -if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi +if [ -x /sbin/lilo ]; then + /sbin/lilo +elif [ -x /etc/lilo/install ]; then + /etc/lilo/install +else + sync + echo "Cannot find LILO." +fi diff --git a/trunk/arch/i386/kernel/Makefile b/trunk/arch/i386/kernel/Makefile index dbe5e87e0d66..9d33b00de659 100644 --- a/trunk/arch/i386/kernel/Makefile +++ b/trunk/arch/i386/kernel/Makefile @@ -35,7 +35,6 @@ obj-y += sysenter.o vsyscall.o obj-$(CONFIG_ACPI_SRAT) += srat.o obj-$(CONFIG_EFI) += efi.o efi_stub.o obj-$(CONFIG_DOUBLEFAULT) += doublefault.o -obj-$(CONFIG_SERIAL_8250) += legacy_serial.o obj-$(CONFIG_VM86) += vm86.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o obj-$(CONFIG_HPET_TIMER) += hpet.o diff --git a/trunk/arch/i386/kernel/apm.c b/trunk/arch/i386/kernel/apm.c index 47001d50a083..f02a8aca826b 100644 --- a/trunk/arch/i386/kernel/apm.c +++ b/trunk/arch/i386/kernel/apm.c @@ -2235,7 +2235,7 @@ static int __init apm_init(void) apm_info.bios.cseg_16_len = 0; /* 64k */ if (debug) { - printk(KERN_INFO "apm: entry %x:%lx cseg16 %x dseg %x", + printk(KERN_INFO "apm: entry %x:%x cseg16 %x dseg %x", apm_info.bios.cseg, apm_info.bios.offset, apm_info.bios.cseg_16, apm_info.bios.dseg); if (apm_info.bios.version > 0x100) diff --git a/trunk/arch/i386/kernel/cpu/bugs.c b/trunk/arch/i386/kernel/cpu/bugs.c index 54428a2500f3..59266f03d1cd 100644 --- a/trunk/arch/i386/kernel/cpu/bugs.c +++ b/trunk/arch/i386/kernel/cpu/bugs.c @@ -11,6 +11,7 @@ */ #include #include +#include #include #include #include diff --git a/trunk/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/trunk/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c index 6f846bee2103..32d04b083e38 100644 --- a/trunk/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/trunk/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -511,7 +511,6 @@ acpi_cpufreq_guess_freq(struct acpi_cpufreq_data *data, unsigned int cpu) static int acpi_cpufreq_early_init(void) { struct acpi_processor_performance *data; - cpumask_t covered; unsigned int i, j; dprintk("acpi_cpufreq_early_init\n"); @@ -520,14 +519,13 @@ static int acpi_cpufreq_early_init(void) data = kzalloc(sizeof(struct acpi_processor_performance), GFP_KERNEL); if (!data) { - for_each_cpu_mask(j, covered) { + for_each_possible_cpu(j) { kfree(acpi_perf_data[j]); acpi_perf_data[j] = NULL; } return -ENOMEM; } acpi_perf_data[i] = data; - cpu_set(i, covered); } /* Do initialization in ACPI core */ diff --git a/trunk/arch/i386/kernel/legacy_serial.c b/trunk/arch/i386/kernel/legacy_serial.c deleted file mode 100644 index 21510118544e..000000000000 --- a/trunk/arch/i386/kernel/legacy_serial.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - * Legacy COM port devices for x86 platforms without PNPBIOS or ACPI. - * Data taken from include/asm-i386/serial.h. - * - * (c) Copyright 2007 Hewlett-Packard Development Company, L.P. - * Bjorn Helgaas - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include -#include - -/* Standard COM flags (except for COM4, because of the 8514 problem) */ -#ifdef CONFIG_SERIAL_DETECT_IRQ -#define COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ) -#define COM4_FLAGS (UPF_BOOT_AUTOCONF | UPF_AUTO_IRQ) -#else -#define COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST) -#define COM4_FLAGS UPF_BOOT_AUTOCONF -#endif - -#define PORT(_base,_irq,_flags) \ - { \ - .iobase = _base, \ - .irq = _irq, \ - .uartclk = 1843200, \ - .iotype = UPIO_PORT, \ - .flags = _flags, \ - } - -static struct plat_serial8250_port x86_com_data[] = { - PORT(0x3F8, 4, COM_FLAGS), - PORT(0x2F8, 3, COM_FLAGS), - PORT(0x3E8, 4, COM_FLAGS), - PORT(0x2E8, 3, COM4_FLAGS), - { }, -}; - -static struct platform_device x86_com_device = { - .name = "serial8250", - .id = PLAT8250_DEV_PLATFORM, - .dev = { - .platform_data = x86_com_data, - }, -}; - -static int force_legacy_probe; -module_param_named(force, force_legacy_probe, bool, 0); -MODULE_PARM_DESC(force, "Force legacy serial port probe"); - -static int __init serial8250_x86_com_init(void) -{ - if (pnp_platform_devices && !force_legacy_probe) - return -ENODEV; - - return platform_device_register(&x86_com_device); -} - -module_init(serial8250_x86_com_init); - -MODULE_AUTHOR("Bjorn Helgaas"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Generic 8250/16x50 legacy probe module"); diff --git a/trunk/arch/ia64/kernel/perfmon.c b/trunk/arch/ia64/kernel/perfmon.c index b7133cabdbea..14b8e5a6222b 100644 --- a/trunk/arch/ia64/kernel/perfmon.c +++ b/trunk/arch/ia64/kernel/perfmon.c @@ -591,13 +591,13 @@ pfm_set_task_notify(struct task_struct *task) struct thread_info *info; info = (struct thread_info *) ((char *) task + IA64_TASK_SIZE); - set_bit(TIF_NOTIFY_RESUME, &info->flags); + set_bit(TIF_PERFMON_WORK, &info->flags); } static inline void pfm_clear_task_notify(void) { - clear_thread_flag(TIF_NOTIFY_RESUME); + clear_thread_flag(TIF_PERFMON_WORK); } static inline void diff --git a/trunk/arch/m68knommu/platform/5206e/config.c b/trunk/arch/m68knommu/platform/5206e/config.c index 4ab614f1ecda..425703fb6cee 100644 --- a/trunk/arch/m68knommu/platform/5206e/config.c +++ b/trunk/arch/m68knommu/platform/5206e/config.c @@ -20,7 +20,6 @@ #include #include #include -#include /***************************************************************************/ diff --git a/trunk/arch/powerpc/kernel/entry_64.S b/trunk/arch/powerpc/kernel/entry_64.S index 2b66d53dcc55..9ef28da2c7fe 100644 --- a/trunk/arch/powerpc/kernel/entry_64.S +++ b/trunk/arch/powerpc/kernel/entry_64.S @@ -546,7 +546,6 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES) rfid b . /* prevent speculative execution */ -/* Note: this must change if we start using the TIF_NOTIFY_RESUME bit */ do_work: #ifdef CONFIG_PREEMPT andi. r0,r3,MSR_PR /* Returning to user mode? */ diff --git a/trunk/arch/sh/Kconfig b/trunk/arch/sh/Kconfig index f87f429e0b24..54878f07cf0c 100644 --- a/trunk/arch/sh/Kconfig +++ b/trunk/arch/sh/Kconfig @@ -90,6 +90,9 @@ config ARCH_HAS_ILOG2_U64 bool default n +config ARCH_NO_VIRT_TO_BUS + def_bool y + source "init/Kconfig" menu "System type" @@ -134,8 +137,8 @@ config SH_FPU_EMU config SH_DSP bool "DSP support" - default y if SH4AL_DSP || !CPU_SH4 - default n + depends on CPU_HAS_DSP + default y help Selecting this option will enable support for SH processors that have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP). @@ -172,9 +175,6 @@ config SPECULATIVE_EXECUTION config CPU_HAS_INTEVT bool -config CPU_HAS_PINT_IRQ - bool - config CPU_HAS_MASKREG_IRQ bool @@ -202,6 +202,9 @@ config CPU_HAS_SR_RB config CPU_HAS_PTEA bool +config CPU_HAS_DSP + bool + endmenu menu "Board support" @@ -261,14 +264,6 @@ config SH_7780_SOLUTION_ENGINE Select 7780 SolutionEngine if configuring for a Renesas SH7780 evaluation board. -config SH_7300_SOLUTION_ENGINE - bool "SolutionEngine7300" - select SOLUTION_ENGINE - depends on CPU_SUBTYPE_SH7300 - help - Select 7300 SolutionEngine if configuring for a Hitachi - SH7300(SH-Mobile V) evaluation board. - config SH_7343_SOLUTION_ENGINE bool "SolutionEngine7343" select SOLUTION_ENGINE @@ -277,14 +272,6 @@ config SH_7343_SOLUTION_ENGINE Select 7343 SolutionEngine if configuring for a Hitachi SH7343 (SH-Mobile 3AS) evaluation board. -config SH_73180_SOLUTION_ENGINE - bool "SolutionEngine73180" - select SOLUTION_ENGINE - depends on CPU_SUBTYPE_SH73180 - help - Select 73180 SolutionEngine if configuring for a Hitachi - SH73180(SH-Mobile 3) evaluation board. - config SH_7751_SYSTEMH bool "SystemH7751R" depends on CPU_SUBTYPE_SH7751R @@ -448,10 +435,10 @@ config SH_TIMER_IRQ config SH_PCLK_FREQ int "Peripheral clock frequency (in Hz)" - default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343 + default "27000000" if CPU_SUBTYPE_SH7343 default "31250000" if CPU_SUBTYPE_SH7619 default "32000000" if CPU_SUBTYPE_SH7722 - default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \ + default "33333333" if CPU_SUBTYPE_SH7770 || \ CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \ CPU_SUBTYPE_SH7206 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R diff --git a/trunk/arch/sh/Makefile b/trunk/arch/sh/Makefile index 0016609d1eba..3d211aa33cd8 100644 --- a/trunk/arch/sh/Makefile +++ b/trunk/arch/sh/Makefile @@ -91,9 +91,7 @@ machdir-$(CONFIG_SH_SOLUTION_ENGINE) += se/770x machdir-$(CONFIG_SH_7722_SOLUTION_ENGINE) += se/7722 machdir-$(CONFIG_SH_7751_SOLUTION_ENGINE) += se/7751 machdir-$(CONFIG_SH_7780_SOLUTION_ENGINE) += se/7780 -machdir-$(CONFIG_SH_7300_SOLUTION_ENGINE) += se/7300 machdir-$(CONFIG_SH_7343_SOLUTION_ENGINE) += se/7343 -machdir-$(CONFIG_SH_73180_SOLUTION_ENGINE) += se/73180 machdir-$(CONFIG_SH_HP6XX) += hp6xx machdir-$(CONFIG_SH_DREAMCAST) += dreamcast machdir-$(CONFIG_SH_MPC1211) += mpc1211 diff --git a/trunk/arch/sh/boards/se/7300/Makefile b/trunk/arch/sh/boards/se/7300/Makefile deleted file mode 100644 index 46247368f14b..000000000000 --- a/trunk/arch/sh/boards/se/7300/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# -# Makefile for the 7300 SolutionEngine specific parts of the kernel -# - -obj-y := setup.o io.o irq.o diff --git a/trunk/arch/sh/boards/se/7300/io.c b/trunk/arch/sh/boards/se/7300/io.c deleted file mode 100644 index 8a03d7a52a7c..000000000000 --- a/trunk/arch/sh/boards/se/7300/io.c +++ /dev/null @@ -1,268 +0,0 @@ -/* - * arch/sh/boards/se/7300/io.c - * - * Copyright (C) 2003 YOSHII Takashi - * Based on arch/sh/kernel/io_shmse.c - * - * I/O routine for SH-Mobile3 73180 SolutionEngine. - * - */ - -#include -#include -#include - -#define badio(fn, a) panic("bad i/o operation %s for %08lx.", #fn, a) - -struct iop { - unsigned long start, end; - unsigned long base; - struct iop *(*check) (struct iop * p, unsigned long port); - unsigned char (*inb) (struct iop * p, unsigned long port); - unsigned short (*inw) (struct iop * p, unsigned long port); - void (*outb) (struct iop * p, unsigned char value, unsigned long port); - void (*outw) (struct iop * p, unsigned short value, unsigned long port); -}; - -struct iop * -simple_check(struct iop *p, unsigned long port) -{ - if ((p->start <= port) && (port <= p->end)) - return p; - else - badio(check, port); -} - -struct iop * -ide_check(struct iop *p, unsigned long port) -{ - if (((0x1f0 <= port) && (port <= 0x1f7)) || (port == 0x3f7)) - return p; - return NULL; -} - -unsigned char -simple_inb(struct iop *p, unsigned long port) -{ - return *(unsigned char *) (p->base + port); -} - -unsigned short -simple_inw(struct iop *p, unsigned long port) -{ - return *(unsigned short *) (p->base + port); -} - -void -simple_outb(struct iop *p, unsigned char value, unsigned long port) -{ - *(unsigned char *) (p->base + port) = value; -} - -void -simple_outw(struct iop *p, unsigned short value, unsigned long port) -{ - *(unsigned short *) (p->base + port) = value; -} - -unsigned char -pcc_inb(struct iop *p, unsigned long port) -{ - unsigned long addr = p->base + port + 0x40000; - unsigned long v; - - if (port & 1) - addr += 0x00400000; - v = *(volatile unsigned char *) addr; - return v; -} - -void -pcc_outb(struct iop *p, unsigned char value, unsigned long port) -{ - unsigned long addr = p->base + port + 0x40000; - - if (port & 1) - addr += 0x00400000; - *(volatile unsigned char *) addr = value; -} - -unsigned char -bad_inb(struct iop *p, unsigned long port) -{ - badio(inb, port); -} - -void -bad_outb(struct iop *p, unsigned char value, unsigned long port) -{ - badio(inw, port); -} - -#ifdef CONFIG_SMC91X -/* MSTLANEX01 LAN at 0xb400:0000 */ -static struct iop laniop = { - .start = 0x300, - .end = 0x30f, - .base = 0xb4000000, - .check = simple_check, - .inb = simple_inb, - .inw = simple_inw, - .outb = simple_outb, - .outw = simple_outw, -}; -#endif - -/* NE2000 pc card NIC */ -static struct iop neiop = { - .start = 0x280, - .end = 0x29f, - .base = 0xb0600000 + 0x80, /* soft 0x280 -> hard 0x300 */ - .check = simple_check, - .inb = pcc_inb, - .inw = simple_inw, - .outb = pcc_outb, - .outw = simple_outw, -}; - -#ifdef CONFIG_IDE -/* CF in CF slot */ -static struct iop cfiop = { - .base = 0xb0600000, - .check = ide_check, - .inb = pcc_inb, - .inw = simple_inw, - .outb = pcc_outb, - .outw = simple_outw, -}; -#endif - -static __inline__ struct iop * -port2iop(unsigned long port) -{ - if (0) ; -#if defined(CONFIG_SMC91X) - else if (laniop.check(&laniop, port)) - return &laniop; -#endif -#if defined(CONFIG_NE2000) - else if (neiop.check(&neiop, port)) - return &neiop; -#endif -#if defined(CONFIG_IDE) - else if (cfiop.check(&cfiop, port)) - return &cfiop; -#endif - else - return &neiop; /* fallback */ -} - -static inline void -delay(void) -{ - ctrl_inw(0xac000000); - ctrl_inw(0xac000000); -} - -unsigned char -sh7300se_inb(unsigned long port) -{ - struct iop *p = port2iop(port); - return (p->inb) (p, port); -} - -unsigned char -sh7300se_inb_p(unsigned long port) -{ - unsigned char v = sh7300se_inb(port); - delay(); - return v; -} - -unsigned short -sh7300se_inw(unsigned long port) -{ - struct iop *p = port2iop(port); - return (p->inw) (p, port); -} - -unsigned int -sh7300se_inl(unsigned long port) -{ - badio(inl, port); -} - -void -sh7300se_outb(unsigned char value, unsigned long port) -{ - struct iop *p = port2iop(port); - (p->outb) (p, value, port); -} - -void -sh7300se_outb_p(unsigned char value, unsigned long port) -{ - sh7300se_outb(value, port); - delay(); -} - -void -sh7300se_outw(unsigned short value, unsigned long port) -{ - struct iop *p = port2iop(port); - (p->outw) (p, value, port); -} - -void -sh7300se_outl(unsigned int value, unsigned long port) -{ - badio(outl, port); -} - -void -sh7300se_insb(unsigned long port, void *addr, unsigned long count) -{ - unsigned char *a = addr; - struct iop *p = port2iop(port); - while (count--) - *a++ = (p->inb) (p, port); -} - -void -sh7300se_insw(unsigned long port, void *addr, unsigned long count) -{ - unsigned short *a = addr; - struct iop *p = port2iop(port); - while (count--) - *a++ = (p->inw) (p, port); -} - -void -sh7300se_insl(unsigned long port, void *addr, unsigned long count) -{ - badio(insl, port); -} - -void -sh7300se_outsb(unsigned long port, const void *addr, unsigned long count) -{ - unsigned char *a = (unsigned char *) addr; - struct iop *p = port2iop(port); - while (count--) - (p->outb) (p, *a++, port); -} - -void -sh7300se_outsw(unsigned long port, const void *addr, unsigned long count) -{ - unsigned short *a = (unsigned short *) addr; - struct iop *p = port2iop(port); - while (count--) - (p->outw) (p, *a++, port); -} - -void -sh7300se_outsl(unsigned long port, const void *addr, unsigned long count) -{ - badio(outsw, port); -} diff --git a/trunk/arch/sh/boards/se/7300/irq.c b/trunk/arch/sh/boards/se/7300/irq.c deleted file mode 100644 index 1279d776d60f..000000000000 --- a/trunk/arch/sh/boards/se/7300/irq.c +++ /dev/null @@ -1,40 +0,0 @@ -/* - * linux/arch/sh/boards/se/7300/irq.c - * - * Copyright (C) 2003 Takashi Kusuda - * - * SH-Mobile SolutionEngine 7300 Support. - * - */ - -#include -#include -#include -#include -#include - -static struct ipr_data se7300_ipr_map[] = { - /* PC_IRQ[0-3] -> IRQ0 (32) */ - { IRQ0_IRQ, IRQ0_IPR_ADDR, IRQ0_IPR_POS, 0x0f - IRQ0_IRQ }, - /* A_IRQ[0-3] -> IRQ1 (33) */ - { IRQ1_IRQ, IRQ1_IPR_ADDR, IRQ1_IPR_POS, 0x0f - IRQ1_IRQ }, - { SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY }, - { DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY }, - { DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY }, - { VIO_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY }, -}; - -/* - * Initialize IRQ setting - */ -void __init -init_7300se_IRQ(void) -{ - ctrl_outw(0x0028, PA_EPLD_MODESET); /* mode set IRQ0,1 active low. */ - ctrl_outw(0xa000, INTC_ICR1); /* IRQ mode; IRQ0,1 enable. */ - ctrl_outw(0x0000, PORT_PFCR); /* use F for IRQ[3:0] and SIU. */ - - make_ipr_irq(se7300_ipr_map, ARRAY_SIZE(se7300_ipr_map)); - - ctrl_outw(0x2000, PA_MRSHPC + 0x0c); /* mrshpc irq enable */ -} diff --git a/trunk/arch/sh/boards/se/7300/setup.c b/trunk/arch/sh/boards/se/7300/setup.c deleted file mode 100644 index eb469f5b6e97..000000000000 --- a/trunk/arch/sh/boards/se/7300/setup.c +++ /dev/null @@ -1,74 +0,0 @@ -/* - * linux/arch/sh/boards/se/7300/setup.c - * - * Copyright (C) 2003 Takashi Kusuda - * - * SH-Mobile SolutionEngine 7300 Support. - * - */ -#include -#include -#include -#include - -void init_7300se_IRQ(void); - -static unsigned char heartbeat_bit_pos[] = { 8, 9, 10, 11, 12, 13, 14, 15 }; - -static struct resource heartbeat_resources[] = { - [0] = { - .start = PA_LED, - .end = PA_LED + ARRAY_SIZE(heartbeat_bit_pos) - 1, - .flags = IORESOURCE_MEM, - }, -}; - -static struct platform_device heartbeat_device = { - .name = "heartbeat", - .id = -1, - .dev = { - .platform_data = heartbeat_bit_pos, - }, - .num_resources = ARRAY_SIZE(heartbeat_resources), - .resource = heartbeat_resources, -}; - -static struct platform_device *se7300_devices[] __initdata = { - &heartbeat_device, -}; - -static int __init se7300_devices_setup(void) -{ - return platform_add_devices(se7300_devices, ARRAY_SIZE(se7300_devices)); -} -__initcall(se7300_devices_setup); - -/* - * The Machine Vector - */ -static struct sh_machine_vector mv_7300se __initmv = { - .mv_name = "SolutionEngine 7300", - .mv_nr_irqs = 109, - .mv_inb = sh7300se_inb, - .mv_inw = sh7300se_inw, - .mv_inl = sh7300se_inl, - .mv_outb = sh7300se_outb, - .mv_outw = sh7300se_outw, - .mv_outl = sh7300se_outl, - - .mv_inb_p = sh7300se_inb_p, - .mv_inw_p = sh7300se_inw, - .mv_inl_p = sh7300se_inl, - .mv_outb_p = sh7300se_outb_p, - .mv_outw_p = sh7300se_outw, - .mv_outl_p = sh7300se_outl, - - .mv_insb = sh7300se_insb, - .mv_insw = sh7300se_insw, - .mv_insl = sh7300se_insl, - .mv_outsb = sh7300se_outsb, - .mv_outsw = sh7300se_outsw, - .mv_outsl = sh7300se_outsl, - - .mv_init_irq = init_7300se_IRQ, -}; diff --git a/trunk/arch/sh/boards/se/73180/Makefile b/trunk/arch/sh/boards/se/73180/Makefile deleted file mode 100644 index e7c09967c529..000000000000 --- a/trunk/arch/sh/boards/se/73180/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# -# Makefile for the 73180 SolutionEngine specific parts of the kernel -# - -obj-y := setup.o io.o irq.o diff --git a/trunk/arch/sh/boards/se/73180/io.c b/trunk/arch/sh/boards/se/73180/io.c deleted file mode 100644 index 72715575458b..000000000000 --- a/trunk/arch/sh/boards/se/73180/io.c +++ /dev/null @@ -1,268 +0,0 @@ -/* - * arch/sh/boards/se/73180/io.c - * - * Copyright (C) 2003 YOSHII Takashi - * Based on arch/sh/boards/se/7300/io.c - * - * I/O routine for SH-Mobile3 73180 SolutionEngine. - * - */ - -#include -#include -#include - -#define badio(fn, a) panic("bad i/o operation %s for %08lx.", #fn, a) - -struct iop { - unsigned long start, end; - unsigned long base; - struct iop *(*check) (struct iop * p, unsigned long port); - unsigned char (*inb) (struct iop * p, unsigned long port); - unsigned short (*inw) (struct iop * p, unsigned long port); - void (*outb) (struct iop * p, unsigned char value, unsigned long port); - void (*outw) (struct iop * p, unsigned short value, unsigned long port); -}; - -struct iop * -simple_check(struct iop *p, unsigned long port) -{ - if ((p->start <= port) && (port <= p->end)) - return p; - else - badio(check, port); -} - -struct iop * -ide_check(struct iop *p, unsigned long port) -{ - if (((0x1f0 <= port) && (port <= 0x1f7)) || (port == 0x3f7)) - return p; - return NULL; -} - -unsigned char -simple_inb(struct iop *p, unsigned long port) -{ - return *(unsigned char *) (p->base + port); -} - -unsigned short -simple_inw(struct iop *p, unsigned long port) -{ - return *(unsigned short *) (p->base + port); -} - -void -simple_outb(struct iop *p, unsigned char value, unsigned long port) -{ - *(unsigned char *) (p->base + port) = value; -} - -void -simple_outw(struct iop *p, unsigned short value, unsigned long port) -{ - *(unsigned short *) (p->base + port) = value; -} - -unsigned char -pcc_inb(struct iop *p, unsigned long port) -{ - unsigned long addr = p->base + port + 0x40000; - unsigned long v; - - if (port & 1) - addr += 0x00400000; - v = *(volatile unsigned char *) addr; - return v; -} - -void -pcc_outb(struct iop *p, unsigned char value, unsigned long port) -{ - unsigned long addr = p->base + port + 0x40000; - - if (port & 1) - addr += 0x00400000; - *(volatile unsigned char *) addr = value; -} - -unsigned char -bad_inb(struct iop *p, unsigned long port) -{ - badio(inb, port); -} - -void -bad_outb(struct iop *p, unsigned char value, unsigned long port) -{ - badio(inw, port); -} - -#ifdef CONFIG_SMC91X -/* MSTLANEX01 LAN at 0xb400:0000 */ -static struct iop laniop = { - .start = 0x300, - .end = 0x30f, - .base = 0xb4000000, - .check = simple_check, - .inb = simple_inb, - .inw = simple_inw, - .outb = simple_outb, - .outw = simple_outw, -}; -#endif - -/* NE2000 pc card NIC */ -static struct iop neiop = { - .start = 0x280, - .end = 0x29f, - .base = 0xb0600000 + 0x80, /* soft 0x280 -> hard 0x300 */ - .check = simple_check, - .inb = pcc_inb, - .inw = simple_inw, - .outb = pcc_outb, - .outw = simple_outw, -}; - -#ifdef CONFIG_IDE -/* CF in CF slot */ -static struct iop cfiop = { - .base = 0xb0600000, - .check = ide_check, - .inb = pcc_inb, - .inw = simple_inw, - .outb = pcc_outb, - .outw = simple_outw, -}; -#endif - -static __inline__ struct iop * -port2iop(unsigned long port) -{ - if (0) ; -#if defined(CONFIG_SMC91X) - else if (laniop.check(&laniop, port)) - return &laniop; -#endif -#if defined(CONFIG_NE2000) - else if (neiop.check(&neiop, port)) - return &neiop; -#endif -#if defined(CONFIG_IDE) - else if (cfiop.check(&cfiop, port)) - return &cfiop; -#endif - else - return &neiop; /* fallback */ -} - -static inline void -delay(void) -{ - ctrl_inw(0xac000000); - ctrl_inw(0xac000000); -} - -unsigned char -sh73180se_inb(unsigned long port) -{ - struct iop *p = port2iop(port); - return (p->inb) (p, port); -} - -unsigned char -sh73180se_inb_p(unsigned long port) -{ - unsigned char v = sh73180se_inb(port); - delay(); - return v; -} - -unsigned short -sh73180se_inw(unsigned long port) -{ - struct iop *p = port2iop(port); - return (p->inw) (p, port); -} - -unsigned int -sh73180se_inl(unsigned long port) -{ - badio(inl, port); -} - -void -sh73180se_outb(unsigned char value, unsigned long port) -{ - struct iop *p = port2iop(port); - (p->outb) (p, value, port); -} - -void -sh73180se_outb_p(unsigned char value, unsigned long port) -{ - sh73180se_outb(value, port); - delay(); -} - -void -sh73180se_outw(unsigned short value, unsigned long port) -{ - struct iop *p = port2iop(port); - (p->outw) (p, value, port); -} - -void -sh73180se_outl(unsigned int value, unsigned long port) -{ - badio(outl, port); -} - -void -sh73180se_insb(unsigned long port, void *addr, unsigned long count) -{ - unsigned char *a = addr; - struct iop *p = port2iop(port); - while (count--) - *a++ = (p->inb) (p, port); -} - -void -sh73180se_insw(unsigned long port, void *addr, unsigned long count) -{ - unsigned short *a = addr; - struct iop *p = port2iop(port); - while (count--) - *a++ = (p->inw) (p, port); -} - -void -sh73180se_insl(unsigned long port, void *addr, unsigned long count) -{ - badio(insl, port); -} - -void -sh73180se_outsb(unsigned long port, const void *addr, unsigned long count) -{ - unsigned char *a = (unsigned char *) addr; - struct iop *p = port2iop(port); - while (count--) - (p->outb) (p, *a++, port); -} - -void -sh73180se_outsw(unsigned long port, const void *addr, unsigned long count) -{ - unsigned short *a = (unsigned short *) addr; - struct iop *p = port2iop(port); - while (count--) - (p->outw) (p, *a++, port); -} - -void -sh73180se_outsl(unsigned long port, const void *addr, unsigned long count) -{ - badio(outsw, port); -} diff --git a/trunk/arch/sh/boards/se/73180/irq.c b/trunk/arch/sh/boards/se/73180/irq.c deleted file mode 100644 index e7200c56bb45..000000000000 --- a/trunk/arch/sh/boards/se/73180/irq.c +++ /dev/null @@ -1,136 +0,0 @@ -/* - * arch/sh/boards/se/73180/irq.c - * - * Copyright (C) 2003 Takashi Kusuda - * Based on arch/sh/boards/se/7300/irq.c - * - * Modified for SH-Mobile SolutionEngine 73180 Support - * by YOSHII Takashi - * - */ - -#include -#include -#include -#include -#include - -static int -irq2intreq(int irq) -{ - if (irq == 10) - return 5; - return 7 - (irq - 32); -} - -static void -disable_intreq_irq(unsigned int irq) -{ - ctrl_outb(1 << (7 - irq2intreq(irq)), INTMSK0); -} - -static void -enable_intreq_irq(unsigned int irq) -{ - ctrl_outb(1 << (7 - irq2intreq(irq)), INTMSKCLR0); -} - -static void -mask_and_ack_intreq_irq(unsigned int irq) -{ - disable_intreq_irq(irq); -} - -static unsigned int -startup_intreq_irq(unsigned int irq) -{ - enable_intreq_irq(irq); - return 0; -} - -static void -shutdown_intreq_irq(unsigned int irq) -{ - disable_intreq_irq(irq); -} - -static void -end_intreq_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) - enable_intreq_irq(irq); -} - -static struct hw_interrupt_type intreq_irq_type = { - .typename = "intreq", - .startup = startup_intreq_irq, - .shutdown = shutdown_intreq_irq, - .enable = enable_intreq_irq, - .disable = disable_intreq_irq, - .ack = mask_and_ack_intreq_irq, - .end = end_intreq_irq -}; - -void -make_intreq_irq(unsigned int irq) -{ - disable_irq_nosync(irq); - irq_desc[irq].chip = &intreq_irq_type; - disable_intreq_irq(irq); -} - -int -shmse_irq_demux(int irq) -{ - if (irq == IRQ5_IRQ) - return 10; - return irq; -} - -static struct ipr_data se73180_siof0_ipr_map[] = { - { SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY }, -}; -static struct ipr_data se73180_vpu_ipr_map[] = { - { VPU_IRQ, VPU_IPR_ADDR, VPU_IPR_POS, 8 }, -}; -static struct ipr_data se73180_other_ipr_map[] = { - { DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY }, - { DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY }, - { DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY }, - { IIC0_ALI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY }, - { IIC0_TACKI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY }, - { IIC0_WAITI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY }, - { IIC0_DTEI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY }, - { SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY }, - { SIU_IRQ, SIU_IPR_ADDR, SIU_IPR_POS, SIU_PRIORITY }, - - /* VIO interrupt */ - { CEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY }, - { BEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY }, - { VEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY }, - - { LCDC_IRQ, LCDC_IPR_ADDR, LCDC_IPR_POS, LCDC_PRIORITY }, -}; - -/* - * Initialize IRQ setting - */ -void __init -init_73180se_IRQ(void) -{ - make_ipr_irq(se73180_siof0_ipr_map, ARRAY_SIZE(se73180_siof0_ipr_map)); - - ctrl_outw(0x2000, 0xb03fffec); /* mrshpc irq enable */ - ctrl_outw(0x2000, 0xb07fffec); /* mrshpc irq enable */ - ctrl_outl(3 << ((7 - 5) * 4), INTC_INTPRI0); /* irq5 pri=3 */ - ctrl_outw(2 << ((7 - 5) * 2), INTC_ICR1); /* low-level irq */ - make_intreq_irq(10); - - make_ipr_irq(se73180_vpu_ipr_map, ARRAY_SIZE(se73180_vpu_ipr_map)); - - ctrl_outb(0x0f, INTC_IMCR5); /* enable SCIF IRQ */ - - make_ipr_irq(se73180_other_ipr_map, ARRAY_SIZE(se73180_other_ipr_map)); - - ctrl_outw(0x2000, PA_MRSHPC + 0x0c); /* mrshpc irq enable */ -} diff --git a/trunk/arch/sh/boards/se/73180/setup.c b/trunk/arch/sh/boards/se/73180/setup.c deleted file mode 100644 index 1deee8556642..000000000000 --- a/trunk/arch/sh/boards/se/73180/setup.c +++ /dev/null @@ -1,75 +0,0 @@ -/* - * arch/sh/boards/se/73180/setup.c - * - * Copyright (C) 2003 Takashi Kusuda - * Based on arch/sh/setup_shmse.c - * - * Modified for 73180 SolutionEngine - * by YOSHII Takashi - * - */ - -#include -#include -#include -#include -#include - -void init_73180se_IRQ(void); - -static struct resource heartbeat_resources[] = { - [0] = { - .start = PA_LED, - .end = PA_LED + 8 - 1, - .flags = IORESOURCE_MEM, - }, -}; - -static struct platform_device heartbeat_device = { - .name = "heartbeat", - .id = -1, - .num_resources = ARRAY_SIZE(heartbeat_resources), - .resource = heartbeat_resources, -}; - -static struct platform_device *se73180_devices[] __initdata = { - &heartbeat_device, -}; - -static int __init se73180_devices_setup(void) -{ - return platform_add_devices(se73180_devices, - ARRAY_SIZE(se73180_devices)); -} -__initcall(se73180_devices_setup); - -/* - * The Machine Vector - */ -static struct sh_machine_vector mv_73180se __initmv = { - .mv_name = "SolutionEngine 73180", - .mv_nr_irqs = 108, - .mv_inb = sh73180se_inb, - .mv_inw = sh73180se_inw, - .mv_inl = sh73180se_inl, - .mv_outb = sh73180se_outb, - .mv_outw = sh73180se_outw, - .mv_outl = sh73180se_outl, - - .mv_inb_p = sh73180se_inb_p, - .mv_inw_p = sh73180se_inw, - .mv_inl_p = sh73180se_inl, - .mv_outb_p = sh73180se_outb_p, - .mv_outw_p = sh73180se_outw, - .mv_outl_p = sh73180se_outl, - - .mv_insb = sh73180se_insb, - .mv_insw = sh73180se_insw, - .mv_insl = sh73180se_insl, - .mv_outsb = sh73180se_outsb, - .mv_outsw = sh73180se_outsw, - .mv_outsl = sh73180se_outsl, - - .mv_init_irq = init_73180se_IRQ, - .mv_irq_demux = shmse_irq_demux, -}; diff --git a/trunk/arch/sh/boot/Makefile b/trunk/arch/sh/boot/Makefile index 11dc272c618e..4c5ffdcd55b6 100644 --- a/trunk/arch/sh/boot/Makefile +++ b/trunk/arch/sh/boot/Makefile @@ -32,9 +32,10 @@ $(obj)/zImage: $(obj)/compressed/vmlinux FORCE $(obj)/compressed/vmlinux: FORCE $(Q)$(MAKE) $(build)=$(obj)/compressed $@ -KERNEL_LOAD := $(shell printf "0x%8x" $$[$(CONFIG_PAGE_OFFSET) + \ - $(CONFIG_MEMORY_START) + \ - $(CONFIG_ZERO_PAGE_OFFSET)+0x1000]) +KERNEL_LOAD := $(shell /bin/bash -c 'printf "0x%8x" \ + $$[$(CONFIG_PAGE_OFFSET) + \ + $(CONFIG_MEMORY_START) + \ + $(CONFIG_ZERO_PAGE_OFFSET)+0x1000]') quiet_cmd_uimage = UIMAGE $@ cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A sh -O linux -T kernel \ diff --git a/trunk/arch/sh/boot/compressed/Makefile b/trunk/arch/sh/boot/compressed/Makefile index d9512416f885..013504ae1122 100644 --- a/trunk/arch/sh/boot/compressed/Makefile +++ b/trunk/arch/sh/boot/compressed/Makefile @@ -16,9 +16,10 @@ endif # # IMAGE_OFFSET is the load offset of the compression loader # -IMAGE_OFFSET := $(shell printf "0x%08x" $$[$(CONFIG_PAGE_OFFSET) + \ - $(CONFIG_MEMORY_START) + \ - $(CONFIG_BOOT_LINK_OFFSET)]) +IMAGE_OFFSET := $(shell /bin/bash -c 'printf "0x%08x" \ + $$[$(CONFIG_PAGE_OFFSET) + \ + $(CONFIG_MEMORY_START) + \ + $(CONFIG_BOOT_LINK_OFFSET)]') LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name) diff --git a/trunk/arch/sh/configs/se7300_defconfig b/trunk/arch/sh/configs/se7300_defconfig deleted file mode 100644 index 8a217908b81f..000000000000 --- a/trunk/arch/sh/configs/se7300_defconfig +++ /dev/null @@ -1,696 +0,0 @@ -# -# Automatically generated make config: don't edit -# Linux kernel version: 2.6.18 -# Tue Oct 3 11:43:22 2006 -# -CONFIG_SUPERH=y -CONFIG_RWSEM_GENERIC_SPINLOCK=y -CONFIG_GENERIC_FIND_NEXT_BIT=y -CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_HARDIRQS=y -CONFIG_GENERIC_IRQ_PROBE=y -CONFIG_GENERIC_CALIBRATE_DELAY=y -CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" - -# -# Code maturity level options -# -CONFIG_EXPERIMENTAL=y -CONFIG_BROKEN_ON_SMP=y -CONFIG_INIT_ENV_ARG_LIMIT=32 - -# -# General setup -# -CONFIG_LOCALVERSION="" -CONFIG_LOCALVERSION_AUTO=y -# CONFIG_SWAP is not set -# CONFIG_SYSVIPC is not set -# CONFIG_BSD_PROCESS_ACCT is not set -# CONFIG_UTS_NS is not set -# CONFIG_IKCONFIG is not set -# CONFIG_RELAY is not set -CONFIG_INITRAMFS_SOURCE="" -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_SYSCTL=y -CONFIG_EMBEDDED=y -CONFIG_UID16=y -# CONFIG_SYSCTL_SYSCALL is not set -# CONFIG_KALLSYMS is not set -# CONFIG_HOTPLUG is not set -CONFIG_PRINTK=y -CONFIG_BUG=y -CONFIG_ELF_CORE=y -CONFIG_BASE_FULL=y -# CONFIG_FUTEX is not set -# CONFIG_EPOLL is not set -CONFIG_SHMEM=y -CONFIG_SLAB=y -CONFIG_VM_EVENT_COUNTERS=y -# CONFIG_TINY_SHMEM is not set -CONFIG_BASE_SMALL=0 -# CONFIG_SLOB is not set - -# -# Loadable module support -# -# CONFIG_MODULES is not set - -# -# Block layer -# -CONFIG_BLOCK=y -# CONFIG_LBD is not set -# CONFIG_BLK_DEV_IO_TRACE is not set -# CONFIG_LSF is not set - -# -# IO Schedulers -# -CONFIG_IOSCHED_NOOP=y -# CONFIG_IOSCHED_AS is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set -# CONFIG_DEFAULT_AS is not set -# CONFIG_DEFAULT_DEADLINE is not set -# CONFIG_DEFAULT_CFQ is not set -CONFIG_DEFAULT_NOOP=y -CONFIG_DEFAULT_IOSCHED="noop" - -# -# System type -# -CONFIG_SOLUTION_ENGINE=y -# CONFIG_SH_SOLUTION_ENGINE is not set -# CONFIG_SH_7751_SOLUTION_ENGINE is not set -CONFIG_SH_7300_SOLUTION_ENGINE=y -# CONFIG_SH_7343_SOLUTION_ENGINE is not set -# CONFIG_SH_73180_SOLUTION_ENGINE is not set -# CONFIG_SH_7751_SYSTEMH is not set -# CONFIG_SH_HP6XX is not set -# CONFIG_SH_EC3104 is not set -# CONFIG_SH_SATURN is not set -# CONFIG_SH_DREAMCAST is not set -# CONFIG_SH_BIGSUR is not set -# CONFIG_SH_MPC1211 is not set -# CONFIG_SH_SH03 is not set -# CONFIG_SH_SECUREEDGE5410 is not set -# CONFIG_SH_HS7751RVOIP is not set -# CONFIG_SH_7710VOIPGW is not set -# CONFIG_SH_RTS7751R2D is not set -# CONFIG_SH_R7780RP is not set -# CONFIG_SH_EDOSK7705 is not set -# CONFIG_SH_SH4202_MICRODEV is not set -# CONFIG_SH_LANDISK is not set -# CONFIG_SH_TITAN is not set -# CONFIG_SH_SHMIN is not set -# CONFIG_SH_UNKNOWN is not set - -# -# Processor selection -# -CONFIG_CPU_SH3=y - -# -# SH-2 Processor Support -# -# CONFIG_CPU_SUBTYPE_SH7604 is not set - -# -# SH-3 Processor Support -# -CONFIG_CPU_SUBTYPE_SH7300=y -# CONFIG_CPU_SUBTYPE_SH7705 is not set -# CONFIG_CPU_SUBTYPE_SH7706 is not set -# CONFIG_CPU_SUBTYPE_SH7707 is not set -# CONFIG_CPU_SUBTYPE_SH7708 is not set -# CONFIG_CPU_SUBTYPE_SH7709 is not set -# CONFIG_CPU_SUBTYPE_SH7710 is not set - -# -# SH-4 Processor Support -# -# CONFIG_CPU_SUBTYPE_SH7750 is not set -# CONFIG_CPU_SUBTYPE_SH7091 is not set -# CONFIG_CPU_SUBTYPE_SH7750R is not set -# CONFIG_CPU_SUBTYPE_SH7750S is not set -# CONFIG_CPU_SUBTYPE_SH7751 is not set -# CONFIG_CPU_SUBTYPE_SH7751R is not set -# CONFIG_CPU_SUBTYPE_SH7760 is not set -# CONFIG_CPU_SUBTYPE_SH4_202 is not set - -# -# ST40 Processor Support -# -# CONFIG_CPU_SUBTYPE_ST40STB1 is not set -# CONFIG_CPU_SUBTYPE_ST40GX1 is not set - -# -# SH-4A Processor Support -# -# CONFIG_CPU_SUBTYPE_SH7770 is not set -# CONFIG_CPU_SUBTYPE_SH7780 is not set - -# -# SH4AL-DSP Processor Support -# -# CONFIG_CPU_SUBTYPE_SH73180 is not set -# CONFIG_CPU_SUBTYPE_SH7343 is not set - -# -# Memory management options -# -CONFIG_MMU=y -CONFIG_PAGE_OFFSET=0x80000000 -CONFIG_MEMORY_START=0x0c000000 -CONFIG_MEMORY_SIZE=0x04000000 -CONFIG_VSYSCALL=y -CONFIG_SELECT_MEMORY_MODEL=y -CONFIG_FLATMEM_MANUAL=y -# CONFIG_DISCONTIGMEM_MANUAL is not set -# CONFIG_SPARSEMEM_MANUAL is not set -CONFIG_FLATMEM=y -CONFIG_FLAT_NODE_MEM_MAP=y -# CONFIG_SPARSEMEM_STATIC is not set -CONFIG_SPLIT_PTLOCK_CPUS=4 -# CONFIG_RESOURCES_64BIT is not set - -# -# Cache configuration -# -# CONFIG_SH_DIRECT_MAPPED is not set -# CONFIG_SH_WRITETHROUGH is not set -# CONFIG_SH_OCRAM is not set - -# -# Processor features -# -CONFIG_CPU_LITTLE_ENDIAN=y -# CONFIG_SH_FPU_EMU is not set -CONFIG_SH_DSP=y -# CONFIG_SH_ADC is not set -CONFIG_CPU_HAS_INTEVT=y -CONFIG_CPU_HAS_SR_RB=y - -# -# Timer support -# -CONFIG_SH_TMU=y -CONFIG_SH_PCLK_FREQ=33333333 - -# -# CPU Frequency scaling -# -# CONFIG_CPU_FREQ is not set - -# -# DMA support -# -# CONFIG_SH_DMA is not set - -# -# Companion Chips -# -# CONFIG_HD6446X_SERIES is not set -CONFIG_HEARTBEAT=y - -# -# Kernel features -# -# CONFIG_HZ_100 is not set -CONFIG_HZ_250=y -# CONFIG_HZ_1000 is not set -CONFIG_HZ=250 -# CONFIG_KEXEC is not set -# CONFIG_SMP is not set -CONFIG_PREEMPT_NONE=y -# CONFIG_PREEMPT_VOLUNTARY is not set -# CONFIG_PREEMPT is not set - -# -# Boot options -# -CONFIG_ZERO_PAGE_OFFSET=0x00001000 -CONFIG_BOOT_LINK_OFFSET=0x00210000 -# CONFIG_UBC_WAKEUP is not set -CONFIG_CMDLINE_BOOL=y -CONFIG_CMDLINE="console=ttySC0,38400 root=/dev/ram0" - -# -# Bus options -# -# CONFIG_PCI is not set - -# -# PCCARD (PCMCIA/CardBus) support -# - -# -# PCI Hotplug Support -# - -# -# Executable file formats -# -CONFIG_BINFMT_ELF=y -# CONFIG_BINFMT_FLAT is not set -# CONFIG_BINFMT_MISC is not set - -# -# Power management options (EXPERIMENTAL) -# -# CONFIG_PM is not set - -# -# Networking -# -# CONFIG_NET is not set - -# -# Device Drivers -# - -# -# Generic Driver Options -# -CONFIG_STANDALONE=y -CONFIG_PREVENT_FIRMWARE_BUILD=y -# CONFIG_SYS_HYPERVISOR is not set - -# -# Connector - unified userspace <-> kernelspace linker -# - -# -# Memory Technology Devices (MTD) -# -# CONFIG_MTD is not set - -# -# Parallel port support -# -# CONFIG_PARPORT is not set - -# -# Plug and Play support -# - -# -# Block devices -# -# CONFIG_BLK_DEV_COW_COMMON is not set -# CONFIG_BLK_DEV_LOOP is not set -CONFIG_BLK_DEV_RAM=y -CONFIG_BLK_DEV_RAM_COUNT=16 -CONFIG_BLK_DEV_RAM_SIZE=4096 -CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 -CONFIG_BLK_DEV_INITRD=y -# CONFIG_CDROM_PKTCDVD is not set - -# -# ATA/ATAPI/MFM/RLL support -# -# CONFIG_IDE is not set - -# -# SCSI device support -# -# CONFIG_RAID_ATTRS is not set -# CONFIG_SCSI is not set -# CONFIG_SCSI_NETLINK is not set - -# -# Serial ATA (prod) and Parallel ATA (experimental) drivers -# -# CONFIG_ATA is not set - -# -# Multi-device support (RAID and LVM) -# -# CONFIG_MD is not set - -# -# Fusion MPT device support -# -# CONFIG_FUSION is not set - -# -# IEEE 1394 (FireWire) support -# - -# -# I2O device support -# - -# -# ISDN subsystem -# - -# -# Telephony Support -# -# CONFIG_PHONE is not set - -# -# Input device support -# -CONFIG_INPUT=y -# CONFIG_INPUT_FF_MEMLESS is not set - -# -# Userland interfaces -# -CONFIG_INPUT_MOUSEDEV=y -CONFIG_INPUT_MOUSEDEV_PSAUX=y -CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 -CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 -# CONFIG_INPUT_JOYDEV is not set -# CONFIG_INPUT_TSDEV is not set -# CONFIG_INPUT_EVDEV is not set -# CONFIG_INPUT_EVBUG is not set - -# -# Input Device Drivers -# -# CONFIG_INPUT_KEYBOARD is not set -# CONFIG_INPUT_MOUSE is not set -# CONFIG_INPUT_JOYSTICK is not set -# CONFIG_INPUT_TOUCHSCREEN is not set -# CONFIG_INPUT_MISC is not set - -# -# Hardware I/O ports -# -CONFIG_SERIO=y -# CONFIG_SERIO_I8042 is not set -# CONFIG_SERIO_SERPORT is not set -# CONFIG_SERIO_LIBPS2 is not set -# CONFIG_SERIO_RAW is not set -# CONFIG_GAMEPORT is not set - -# -# Character devices -# -# CONFIG_VT is not set -# CONFIG_SERIAL_NONSTANDARD is not set - -# -# Serial drivers -# -# CONFIG_SERIAL_8250 is not set - -# -# Non-8250 serial port support -# -CONFIG_SERIAL_SH_SCI=y -CONFIG_SERIAL_SH_SCI_NR_UARTS=2 -CONFIG_SERIAL_SH_SCI_CONSOLE=y -CONFIG_SERIAL_CORE=y -CONFIG_SERIAL_CORE_CONSOLE=y -# CONFIG_UNIX98_PTYS is not set -# CONFIG_LEGACY_PTYS is not set - -# -# IPMI -# -CONFIG_IPMI_HANDLER=y -# CONFIG_IPMI_PANIC_EVENT is not set -CONFIG_IPMI_DEVICE_INTERFACE=y -# CONFIG_IPMI_SI is not set -CONFIG_IPMI_WATCHDOG=y -# CONFIG_IPMI_POWEROFF is not set - -# -# Watchdog Cards -# -CONFIG_WATCHDOG=y -# CONFIG_WATCHDOG_NOWAYOUT is not set - -# -# Watchdog Device Drivers -# -CONFIG_SOFT_WATCHDOG=y -# CONFIG_SH_WDT is not set -CONFIG_HW_RANDOM=y -# CONFIG_GEN_RTC is not set -# CONFIG_DTLK is not set -# CONFIG_R3964 is not set - -# -# Ftape, the floppy tape device driver -# -# CONFIG_RAW_DRIVER is not set - -# -# TPM devices -# -# CONFIG_TCG_TPM is not set -# CONFIG_TELCLOCK is not set - -# -# I2C support -# -# CONFIG_I2C is not set - -# -# SPI support -# -# CONFIG_SPI is not set -# CONFIG_SPI_MASTER is not set - -# -# Dallas's 1-wire bus -# - -# -# Hardware Monitoring support -# -CONFIG_HWMON=y -# CONFIG_HWMON_VID is not set -# CONFIG_SENSORS_ABITUGURU is not set -# CONFIG_SENSORS_F71805F is not set -# CONFIG_SENSORS_VT1211 is not set -# CONFIG_HWMON_DEBUG_CHIP is not set - -# -# Misc devices -# - -# -# Multimedia devices -# -# CONFIG_VIDEO_DEV is not set -CONFIG_VIDEO_V4L2=y - -# -# Digital Video Broadcasting Devices -# - -# -# Graphics support -# -CONFIG_FIRMWARE_EDID=y -# CONFIG_FB is not set -# CONFIG_BACKLIGHT_LCD_SUPPORT is not set - -# -# Sound -# -# CONFIG_SOUND is not set - -# -# USB support -# -# CONFIG_USB_ARCH_HAS_HCD is not set -# CONFIG_USB_ARCH_HAS_OHCI is not set -# CONFIG_USB_ARCH_HAS_EHCI is not set - -# -# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' -# - -# -# USB Gadget Support -# -# CONFIG_USB_GADGET is not set - -# -# MMC/SD Card support -# -# CONFIG_MMC is not set - -# -# LED devices -# -# CONFIG_NEW_LEDS is not set - -# -# LED drivers -# - -# -# LED Triggers -# - -# -# InfiniBand support -# - -# -# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) -# - -# -# Real Time Clock -# -# CONFIG_RTC_CLASS is not set - -# -# DMA Engine support -# -# CONFIG_DMA_ENGINE is not set - -# -# DMA Clients -# - -# -# DMA Devices -# - -# -# File systems -# -CONFIG_EXT2_FS=y -# CONFIG_EXT2_FS_XATTR is not set -# CONFIG_EXT2_FS_XIP is not set -# CONFIG_EXT3_FS is not set -# CONFIG_REISERFS_FS is not set -# CONFIG_JFS_FS is not set -# CONFIG_FS_POSIX_ACL is not set -# CONFIG_XFS_FS is not set -# CONFIG_MINIX_FS is not set -# CONFIG_ROMFS_FS is not set -CONFIG_INOTIFY=y -CONFIG_INOTIFY_USER=y -# CONFIG_QUOTA is not set -CONFIG_DNOTIFY=y -# CONFIG_AUTOFS_FS is not set -# CONFIG_AUTOFS4_FS is not set -# CONFIG_FUSE_FS is not set - -# -# CD-ROM/DVD Filesystems -# -# CONFIG_ISO9660_FS is not set -# CONFIG_UDF_FS is not set - -# -# DOS/FAT/NT Filesystems -# -# CONFIG_MSDOS_FS is not set -# CONFIG_VFAT_FS is not set -# CONFIG_NTFS_FS is not set - -# -# Pseudo filesystems -# -CONFIG_PROC_FS=y -CONFIG_PROC_KCORE=y -CONFIG_PROC_SYSCTL=y -CONFIG_SYSFS=y -# CONFIG_TMPFS is not set -# CONFIG_HUGETLBFS is not set -# CONFIG_HUGETLB_PAGE is not set -CONFIG_RAMFS=y -# CONFIG_CONFIGFS_FS is not set - -# -# Miscellaneous filesystems -# -# CONFIG_ADFS_FS is not set -# CONFIG_AFFS_FS is not set -# CONFIG_HFS_FS is not set -# CONFIG_HFSPLUS_FS is not set -# CONFIG_BEFS_FS is not set -# CONFIG_BFS_FS is not set -# CONFIG_EFS_FS is not set -# CONFIG_CRAMFS is not set -# CONFIG_VXFS_FS is not set -# CONFIG_HPFS_FS is not set -# CONFIG_QNX4FS_FS is not set -# CONFIG_SYSV_FS is not set -# CONFIG_UFS_FS is not set - -# -# Partition Types -# -# CONFIG_PARTITION_ADVANCED is not set -CONFIG_MSDOS_PARTITION=y - -# -# Native Language Support -# -# CONFIG_NLS is not set - -# -# Profiling support -# -# CONFIG_PROFILING is not set - -# -# Kernel hacking -# -# CONFIG_PRINTK_TIME is not set -CONFIG_ENABLE_MUST_CHECK=y -# CONFIG_MAGIC_SYSRQ is not set -# CONFIG_UNUSED_SYMBOLS is not set -# CONFIG_DEBUG_KERNEL is not set -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_DEBUG_BUGVERBOSE is not set -# CONFIG_DEBUG_FS is not set -CONFIG_FRAME_POINTER=y -# CONFIG_UNWIND_INFO is not set -CONFIG_SH_STANDARD_BIOS=y -CONFIG_EARLY_PRINTK=y -CONFIG_KGDB=y - -# -# KGDB configuration options -# -# CONFIG_MORE_COMPILE_OPTIONS is not set -# CONFIG_KGDB_NMI is not set -# CONFIG_KGDB_THREAD is not set -# CONFIG_SH_KGDB_CONSOLE is not set -# CONFIG_KGDB_SYSRQ is not set -# CONFIG_KGDB_KERNEL_ASSERTS is not set - -# -# Serial port setup -# -CONFIG_KGDB_DEFPORT=1 -CONFIG_KGDB_DEFBAUD=115200 -CONFIG_KGDB_DEFPARITY_N=y -# CONFIG_KGDB_DEFPARITY_E is not set -# CONFIG_KGDB_DEFPARITY_O is not set -CONFIG_KGDB_DEFBITS_8=y -# CONFIG_KGDB_DEFBITS_7 is not set - -# -# Security options -# -# CONFIG_KEYS is not set -# CONFIG_SECURITY is not set - -# -# Cryptographic options -# -# CONFIG_CRYPTO is not set - -# -# Library routines -# -# CONFIG_CRC_CCITT is not set -# CONFIG_CRC16 is not set -CONFIG_CRC32=y -# CONFIG_LIBCRC32C is not set diff --git a/trunk/arch/sh/configs/se73180_defconfig b/trunk/arch/sh/configs/se73180_defconfig deleted file mode 100644 index 1a766153cbb0..000000000000 --- a/trunk/arch/sh/configs/se73180_defconfig +++ /dev/null @@ -1,648 +0,0 @@ -# -# Automatically generated make config: don't edit -# Linux kernel version: 2.6.18 -# Tue Oct 3 11:44:45 2006 -# -CONFIG_SUPERH=y -CONFIG_RWSEM_GENERIC_SPINLOCK=y -CONFIG_GENERIC_FIND_NEXT_BIT=y -CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_HARDIRQS=y -CONFIG_GENERIC_IRQ_PROBE=y -CONFIG_GENERIC_CALIBRATE_DELAY=y -CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" - -# -# Code maturity level options -# -CONFIG_EXPERIMENTAL=y -CONFIG_BROKEN_ON_SMP=y -CONFIG_INIT_ENV_ARG_LIMIT=32 - -# -# General setup -# -CONFIG_LOCALVERSION="" -CONFIG_LOCALVERSION_AUTO=y -CONFIG_SWAP=y -# CONFIG_SYSVIPC is not set -# CONFIG_BSD_PROCESS_ACCT is not set -# CONFIG_UTS_NS is not set -# CONFIG_IKCONFIG is not set -# CONFIG_RELAY is not set -CONFIG_INITRAMFS_SOURCE="" -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_SYSCTL=y -CONFIG_EMBEDDED=y -CONFIG_UID16=y -# CONFIG_SYSCTL_SYSCALL is not set -# CONFIG_KALLSYMS is not set -# CONFIG_HOTPLUG is not set -CONFIG_PRINTK=y -CONFIG_BUG=y -CONFIG_ELF_CORE=y -CONFIG_BASE_FULL=y -# CONFIG_FUTEX is not set -# CONFIG_EPOLL is not set -CONFIG_SHMEM=y -CONFIG_SLAB=y -CONFIG_VM_EVENT_COUNTERS=y -# CONFIG_TINY_SHMEM is not set -CONFIG_BASE_SMALL=0 -# CONFIG_SLOB is not set - -# -# Loadable module support -# -CONFIG_MODULES=y -# CONFIG_MODULE_UNLOAD is not set -# CONFIG_MODVERSIONS is not set -# CONFIG_MODULE_SRCVERSION_ALL is not set -# CONFIG_KMOD is not set - -# -# Block layer -# -CONFIG_BLOCK=y -# CONFIG_LBD is not set -# CONFIG_LSF is not set - -# -# IO Schedulers -# -CONFIG_IOSCHED_NOOP=y -# CONFIG_IOSCHED_AS is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set -# CONFIG_DEFAULT_AS is not set -# CONFIG_DEFAULT_DEADLINE is not set -# CONFIG_DEFAULT_CFQ is not set -CONFIG_DEFAULT_NOOP=y -CONFIG_DEFAULT_IOSCHED="noop" - -# -# System type -# -CONFIG_SOLUTION_ENGINE=y -# CONFIG_SH_SOLUTION_ENGINE is not set -# CONFIG_SH_7751_SOLUTION_ENGINE is not set -# CONFIG_SH_7300_SOLUTION_ENGINE is not set -# CONFIG_SH_7343_SOLUTION_ENGINE is not set -CONFIG_SH_73180_SOLUTION_ENGINE=y -# CONFIG_SH_7751_SYSTEMH is not set -# CONFIG_SH_HP6XX is not set -# CONFIG_SH_EC3104 is not set -# CONFIG_SH_SATURN is not set -# CONFIG_SH_DREAMCAST is not set -# CONFIG_SH_BIGSUR is not set -# CONFIG_SH_MPC1211 is not set -# CONFIG_SH_SH03 is not set -# CONFIG_SH_SECUREEDGE5410 is not set -# CONFIG_SH_HS7751RVOIP is not set -# CONFIG_SH_7710VOIPGW is not set -# CONFIG_SH_RTS7751R2D is not set -# CONFIG_SH_R7780RP is not set -# CONFIG_SH_EDOSK7705 is not set -# CONFIG_SH_SH4202_MICRODEV is not set -# CONFIG_SH_LANDISK is not set -# CONFIG_SH_TITAN is not set -# CONFIG_SH_SHMIN is not set -# CONFIG_SH_UNKNOWN is not set - -# -# Processor selection -# -CONFIG_CPU_SH4=y -CONFIG_CPU_SH4A=y -CONFIG_CPU_SH4AL_DSP=y - -# -# SH-2 Processor Support -# -# CONFIG_CPU_SUBTYPE_SH7604 is not set - -# -# SH-3 Processor Support -# -# CONFIG_CPU_SUBTYPE_SH7300 is not set -# CONFIG_CPU_SUBTYPE_SH7705 is not set -# CONFIG_CPU_SUBTYPE_SH7706 is not set -# CONFIG_CPU_SUBTYPE_SH7707 is not set -# CONFIG_CPU_SUBTYPE_SH7708 is not set -# CONFIG_CPU_SUBTYPE_SH7709 is not set -# CONFIG_CPU_SUBTYPE_SH7710 is not set - -# -# SH-4 Processor Support -# -# CONFIG_CPU_SUBTYPE_SH7750 is not set -# CONFIG_CPU_SUBTYPE_SH7091 is not set -# CONFIG_CPU_SUBTYPE_SH7750R is not set -# CONFIG_CPU_SUBTYPE_SH7750S is not set -# CONFIG_CPU_SUBTYPE_SH7751 is not set -# CONFIG_CPU_SUBTYPE_SH7751R is not set -# CONFIG_CPU_SUBTYPE_SH7760 is not set -# CONFIG_CPU_SUBTYPE_SH4_202 is not set - -# -# ST40 Processor Support -# -# CONFIG_CPU_SUBTYPE_ST40STB1 is not set -# CONFIG_CPU_SUBTYPE_ST40GX1 is not set - -# -# SH-4A Processor Support -# -# CONFIG_CPU_SUBTYPE_SH7770 is not set -# CONFIG_CPU_SUBTYPE_SH7780 is not set - -# -# SH4AL-DSP Processor Support -# -CONFIG_CPU_SUBTYPE_SH73180=y -# CONFIG_CPU_SUBTYPE_SH7343 is not set - -# -# Memory management options -# -CONFIG_MMU=y -CONFIG_PAGE_OFFSET=0x80000000 -CONFIG_MEMORY_START=0x0c000000 -CONFIG_MEMORY_SIZE=0x02000000 -CONFIG_32BIT=y -CONFIG_VSYSCALL=y -CONFIG_SELECT_MEMORY_MODEL=y -CONFIG_FLATMEM_MANUAL=y -# CONFIG_DISCONTIGMEM_MANUAL is not set -# CONFIG_SPARSEMEM_MANUAL is not set -CONFIG_FLATMEM=y -CONFIG_FLAT_NODE_MEM_MAP=y -# CONFIG_SPARSEMEM_STATIC is not set -CONFIG_SPLIT_PTLOCK_CPUS=4 -# CONFIG_RESOURCES_64BIT is not set - -# -# Cache configuration -# -# CONFIG_SH_DIRECT_MAPPED is not set -# CONFIG_SH_WRITETHROUGH is not set -# CONFIG_SH_OCRAM is not set - -# -# Processor features -# -CONFIG_CPU_LITTLE_ENDIAN=y -# CONFIG_SH_FPU is not set -# CONFIG_SH_FPU_EMU is not set -CONFIG_SH_DSP=y -# CONFIG_SH_STORE_QUEUES is not set -CONFIG_CPU_HAS_INTEVT=y -CONFIG_CPU_HAS_SR_RB=y - -# -# Timer support -# -CONFIG_SH_TMU=y -CONFIG_SH_PCLK_FREQ=27000000 - -# -# CPU Frequency scaling -# -# CONFIG_CPU_FREQ is not set - -# -# DMA support -# -# CONFIG_SH_DMA is not set - -# -# Companion Chips -# -# CONFIG_HD6446X_SERIES is not set -CONFIG_HEARTBEAT=y - -# -# Kernel features -# -# CONFIG_HZ_100 is not set -CONFIG_HZ_250=y -# CONFIG_HZ_1000 is not set -CONFIG_HZ=250 -# CONFIG_KEXEC is not set -# CONFIG_SMP is not set -CONFIG_PREEMPT_NONE=y -# CONFIG_PREEMPT_VOLUNTARY is not set -# CONFIG_PREEMPT is not set - -# -# Boot options -# -CONFIG_ZERO_PAGE_OFFSET=0x00010000 -CONFIG_BOOT_LINK_OFFSET=0x00800000 -# CONFIG_UBC_WAKEUP is not set -CONFIG_CMDLINE_BOOL=y -CONFIG_CMDLINE="console=ttySC0,38400 root=/dev/ram" - -# -# Bus options -# -# CONFIG_PCI is not set - -# -# PCCARD (PCMCIA/CardBus) support -# - -# -# PCI Hotplug Support -# - -# -# Executable file formats -# -CONFIG_BINFMT_ELF=y -# CONFIG_BINFMT_FLAT is not set -# CONFIG_BINFMT_MISC is not set - -# -# Power management options (EXPERIMENTAL) -# -# CONFIG_PM is not set - -# -# Networking -# -# CONFIG_NET is not set - -# -# Device Drivers -# - -# -# Generic Driver Options -# -CONFIG_STANDALONE=y -CONFIG_PREVENT_FIRMWARE_BUILD=y -# CONFIG_SYS_HYPERVISOR is not set - -# -# Connector - unified userspace <-> kernelspace linker -# - -# -# Memory Technology Devices (MTD) -# -# CONFIG_MTD is not set - -# -# Parallel port support -# -# CONFIG_PARPORT is not set - -# -# Plug and Play support -# - -# -# Block devices -# -# CONFIG_BLK_DEV_COW_COMMON is not set -CONFIG_BLK_DEV_LOOP=y -# CONFIG_BLK_DEV_CRYPTOLOOP is not set -CONFIG_BLK_DEV_RAM=y -CONFIG_BLK_DEV_RAM_COUNT=16 -CONFIG_BLK_DEV_RAM_SIZE=4096 -CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 -CONFIG_BLK_DEV_INITRD=y -# CONFIG_CDROM_PKTCDVD is not set - -# -# ATA/ATAPI/MFM/RLL support -# -# CONFIG_IDE is not set - -# -# SCSI device support -# -# CONFIG_RAID_ATTRS is not set -# CONFIG_SCSI is not set -# CONFIG_SCSI_NETLINK is not set - -# -# Serial ATA (prod) and Parallel ATA (experimental) drivers -# -# CONFIG_ATA is not set - -# -# Multi-device support (RAID and LVM) -# -# CONFIG_MD is not set - -# -# Fusion MPT device support -# -# CONFIG_FUSION is not set - -# -# IEEE 1394 (FireWire) support -# - -# -# I2O device support -# - -# -# ISDN subsystem -# - -# -# Telephony Support -# -# CONFIG_PHONE is not set - -# -# Input device support -# -# CONFIG_INPUT is not set - -# -# Hardware I/O ports -# -# CONFIG_SERIO is not set -# CONFIG_GAMEPORT is not set - -# -# Character devices -# -# CONFIG_VT is not set -# CONFIG_SERIAL_NONSTANDARD is not set - -# -# Serial drivers -# -# CONFIG_SERIAL_8250 is not set - -# -# Non-8250 serial port support -# -CONFIG_SERIAL_SH_SCI=y -CONFIG_SERIAL_SH_SCI_NR_UARTS=2 -CONFIG_SERIAL_SH_SCI_CONSOLE=y -CONFIG_SERIAL_CORE=y -CONFIG_SERIAL_CORE_CONSOLE=y -# CONFIG_UNIX98_PTYS is not set -# CONFIG_LEGACY_PTYS is not set - -# -# IPMI -# -# CONFIG_IPMI_HANDLER is not set - -# -# Watchdog Cards -# -CONFIG_WATCHDOG=y -# CONFIG_WATCHDOG_NOWAYOUT is not set - -# -# Watchdog Device Drivers -# -# CONFIG_SOFT_WATCHDOG is not set -# CONFIG_SH_WDT is not set -CONFIG_HW_RANDOM=y -# CONFIG_GEN_RTC is not set -# CONFIG_DTLK is not set -# CONFIG_R3964 is not set - -# -# Ftape, the floppy tape device driver -# -# CONFIG_RAW_DRIVER is not set - -# -# TPM devices -# -# CONFIG_TCG_TPM is not set -# CONFIG_TELCLOCK is not set - -# -# I2C support -# -# CONFIG_I2C is not set - -# -# SPI support -# -# CONFIG_SPI is not set -# CONFIG_SPI_MASTER is not set - -# -# Dallas's 1-wire bus -# - -# -# Hardware Monitoring support -# -CONFIG_HWMON=y -# CONFIG_HWMON_VID is not set -# CONFIG_SENSORS_ABITUGURU is not set -# CONFIG_SENSORS_F71805F is not set -# CONFIG_SENSORS_VT1211 is not set -# CONFIG_HWMON_DEBUG_CHIP is not set - -# -# Misc devices -# - -# -# Multimedia devices -# -# CONFIG_VIDEO_DEV is not set -CONFIG_VIDEO_V4L2=y - -# -# Digital Video Broadcasting Devices -# - -# -# Graphics support -# -CONFIG_FIRMWARE_EDID=y -# CONFIG_FB is not set - -# -# Sound -# -# CONFIG_SOUND is not set - -# -# USB support -# -# CONFIG_USB_ARCH_HAS_HCD is not set -# CONFIG_USB_ARCH_HAS_OHCI is not set -# CONFIG_USB_ARCH_HAS_EHCI is not set - -# -# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' -# - -# -# USB Gadget Support -# -# CONFIG_USB_GADGET is not set - -# -# MMC/SD Card support -# -# CONFIG_MMC is not set - -# -# LED devices -# -# CONFIG_NEW_LEDS is not set - -# -# LED drivers -# - -# -# LED Triggers -# - -# -# InfiniBand support -# - -# -# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) -# - -# -# Real Time Clock -# -# CONFIG_RTC_CLASS is not set - -# -# DMA Engine support -# -# CONFIG_DMA_ENGINE is not set - -# -# DMA Clients -# - -# -# DMA Devices -# - -# -# File systems -# -CONFIG_EXT2_FS=y -# CONFIG_EXT2_FS_XATTR is not set -# CONFIG_EXT2_FS_XIP is not set -# CONFIG_EXT3_FS is not set -# CONFIG_REISERFS_FS is not set -# CONFIG_JFS_FS is not set -# CONFIG_FS_POSIX_ACL is not set -# CONFIG_XFS_FS is not set -# CONFIG_MINIX_FS is not set -# CONFIG_ROMFS_FS is not set -CONFIG_INOTIFY=y -CONFIG_INOTIFY_USER=y -# CONFIG_QUOTA is not set -CONFIG_DNOTIFY=y -# CONFIG_AUTOFS_FS is not set -# CONFIG_AUTOFS4_FS is not set -# CONFIG_FUSE_FS is not set - -# -# CD-ROM/DVD Filesystems -# -# CONFIG_ISO9660_FS is not set -# CONFIG_UDF_FS is not set - -# -# DOS/FAT/NT Filesystems -# -# CONFIG_MSDOS_FS is not set -# CONFIG_VFAT_FS is not set -# CONFIG_NTFS_FS is not set - -# -# Pseudo filesystems -# -CONFIG_PROC_FS=y -CONFIG_PROC_KCORE=y -CONFIG_PROC_SYSCTL=y -# CONFIG_SYSFS is not set -CONFIG_TMPFS=y -# CONFIG_TMPFS_POSIX_ACL is not set -# CONFIG_HUGETLBFS is not set -# CONFIG_HUGETLB_PAGE is not set -CONFIG_RAMFS=y - -# -# Miscellaneous filesystems -# -# CONFIG_ADFS_FS is not set -# CONFIG_AFFS_FS is not set -# CONFIG_HFS_FS is not set -# CONFIG_HFSPLUS_FS is not set -# CONFIG_BEFS_FS is not set -# CONFIG_BFS_FS is not set -# CONFIG_EFS_FS is not set -# CONFIG_CRAMFS is not set -# CONFIG_VXFS_FS is not set -# CONFIG_HPFS_FS is not set -# CONFIG_QNX4FS_FS is not set -# CONFIG_SYSV_FS is not set -# CONFIG_UFS_FS is not set - -# -# Partition Types -# -# CONFIG_PARTITION_ADVANCED is not set -CONFIG_MSDOS_PARTITION=y - -# -# Native Language Support -# -# CONFIG_NLS is not set - -# -# Profiling support -# -# CONFIG_PROFILING is not set - -# -# Kernel hacking -# -# CONFIG_PRINTK_TIME is not set -CONFIG_ENABLE_MUST_CHECK=y -# CONFIG_MAGIC_SYSRQ is not set -# CONFIG_UNUSED_SYMBOLS is not set -# CONFIG_DEBUG_KERNEL is not set -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_DEBUG_BUGVERBOSE is not set -CONFIG_SH_STANDARD_BIOS=y -# CONFIG_EARLY_SCIF_CONSOLE is not set -# CONFIG_EARLY_PRINTK is not set -# CONFIG_KGDB is not set - -# -# Security options -# -# CONFIG_KEYS is not set - -# -# Cryptographic options -# -# CONFIG_CRYPTO is not set - -# -# Library routines -# -# CONFIG_CRC_CCITT is not set -# CONFIG_CRC16 is not set -CONFIG_CRC32=y -# CONFIG_LIBCRC32C is not set diff --git a/trunk/arch/sh/drivers/dma/dma-api.c b/trunk/arch/sh/drivers/dma/dma-api.c index cf8e11994330..76ed816d9a24 100644 --- a/trunk/arch/sh/drivers/dma/dma-api.c +++ b/trunk/arch/sh/drivers/dma/dma-api.c @@ -31,8 +31,8 @@ struct dma_info *get_dma_info(unsigned int chan) * the channel is. */ list_for_each_entry(info, ®istered_dmac_list, list) { - if ((chan < info->first_channel_nr) || - (chan >= info->first_channel_nr + info->nr_channels)) + if ((chan < info->first_vchannel_nr) || + (chan >= info->first_vchannel_nr + info->nr_channels)) continue; return info; @@ -82,7 +82,7 @@ struct dma_channel *get_dma_channel(unsigned int chan) for (i = 0; i < info->nr_channels; i++) { channel = &info->channels[i]; - if (channel->chan == chan) + if (channel->vchan == chan) return channel; } @@ -369,6 +369,7 @@ int register_dmac(struct dma_info *info) } total_channels = get_nr_channels(); + info->first_vchannel_nr = total_channels; for (i = 0; i < info->nr_channels; i++) { struct dma_channel *chan = &info->channels[i]; diff --git a/trunk/arch/sh/kernel/cpu/irq/Makefile b/trunk/arch/sh/kernel/cpu/irq/Makefile index 9ddb446ac930..60bfc05cf354 100644 --- a/trunk/arch/sh/kernel/cpu/irq/Makefile +++ b/trunk/arch/sh/kernel/cpu/irq/Makefile @@ -4,7 +4,6 @@ obj-y += imask.o obj-$(CONFIG_CPU_HAS_IPR_IRQ) += ipr.o -obj-$(CONFIG_CPU_HAS_PINT_IRQ) += pint.o obj-$(CONFIG_CPU_HAS_MASKREG_IRQ) += maskreg.o obj-$(CONFIG_CPU_HAS_INTC_IRQ) += intc.o obj-$(CONFIG_CPU_HAS_INTC2_IRQ) += intc2.o diff --git a/trunk/arch/sh/kernel/cpu/irq/ipr.c b/trunk/arch/sh/kernel/cpu/irq/ipr.c index 98e84f40c713..5da325414880 100644 --- a/trunk/arch/sh/kernel/cpu/irq/ipr.c +++ b/trunk/arch/sh/kernel/cpu/irq/ipr.c @@ -8,7 +8,7 @@ * * Supported system: * On-chip supporting modules (TMU, RTC, etc.). - * On-chip supporting modules for SH7709/SH7709A/SH7729/SH7300. + * On-chip supporting modules for SH7709/SH7709A/SH7729. * Hitachi SolutionEngine external I/O: * MS7709SE01, MS7709ASE01, and MS7750SE01 * diff --git a/trunk/arch/sh/kernel/cpu/irq/pint.c b/trunk/arch/sh/kernel/cpu/irq/pint.c deleted file mode 100644 index 67602685df1a..000000000000 --- a/trunk/arch/sh/kernel/cpu/irq/pint.c +++ /dev/null @@ -1,220 +0,0 @@ -/* - * arch/sh/kernel/cpu/irq/pint.c - Interrupt handling for PINT-based IRQs. - * - * Copyright (C) 1999 Niibe Yutaka & Takeshi Yaegashi - * Copyright (C) 2000 Kazumoto Kojima - * Copyright (C) 2003 Takashi Kusuda - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ - -#include -#include -#include - -#include -#include -#include - -#if defined(CONFIG_CPU_SUBTYPE_SH7705) -#define INTC_INTER 0xA4000014UL -#define INTC_IPRD 0xA4000018UL -#define INTC_ICR2 0xA4000012UL - -/* PFC */ -#define PORT_PACR 0xA4000100UL -#define PORT_PBCR 0xA4000102UL -#define PORT_PCCR 0xA4000104UL -#define PORT_PDCR 0xA4000106UL -#define PORT_PECR 0xA4000108UL -#define PORT_PFCR 0xA400010AUL -#define PORT_PGCR 0xA400010CUL -#define PORT_PHCR 0xA400010EUL -#define PORT_PJCR 0xA4000110UL -#define PORT_PKCR 0xA4000112UL -#define PORT_PLCR 0xA4000114UL -#define PORT_PMCR 0xA4000118UL -#define PORT_PNCR 0xA400011AUL -#define PORT_PECR2 0xA4050148UL -#define PORT_PFCR2 0xA405014AUL -#define PORT_PNCR2 0xA405015AUL - -/* I/O port */ -#define PORT_PADR 0xA4000120UL -#define PORT_PBDR 0xA4000122UL -#define PORT_PCDR 0xA4000124UL -#define PORT_PDDR 0xA4000126UL -#define PORT_PEDR 0xA4000128UL -#define PORT_PFDR 0xA400012AUL -#define PORT_PGDR 0xA400012CUL -#define PORT_PHDR 0xA400012EUL -#define PORT_PJDR 0xA4000130UL -#define PORT_PKDR 0xA4000132UL -#define PORT_PLDR 0xA4000134UL -#define PORT_PMDR 0xA4000138UL -#define PORT_PNDR 0xA400013AUL - -#define PINT0_IRQ 40 -#define PINT8_IRQ 41 -#define PINT_IRQ_BASE 86 - -#define PINT0_IPR_ADDR INTC_IPRD -#define PINT0_IPR_POS 3 -#define PINT0_PRIORITY 2 - -#define PINT8_IPR_ADDR INTC_IPRD -#define PINT8_IPR_POS 2 -#define PINT8_PRIORITY 2 - -#endif /* CONFIG_CPU_SUBTYPE_SH7705 */ - -static unsigned char pint_map[256]; -static unsigned long portcr_mask; - -static void enable_pint_irq(unsigned int irq); -static void disable_pint_irq(unsigned int irq); - -/* shutdown is same as "disable" */ -#define shutdown_pint_irq disable_pint_irq - -static void mask_and_ack_pint(unsigned int); -static void end_pint_irq(unsigned int irq); - -static unsigned int startup_pint_irq(unsigned int irq) -{ - enable_pint_irq(irq); - return 0; /* never anything pending */ -} - -static struct hw_interrupt_type pint_irq_type = { - .typename = "PINT-IRQ", - .startup = startup_pint_irq, - .shutdown = shutdown_pint_irq, - .enable = enable_pint_irq, - .disable = disable_pint_irq, - .ack = mask_and_ack_pint, - .end = end_pint_irq -}; - -static void disable_pint_irq(unsigned int irq) -{ - unsigned long val; - - val = ctrl_inw(INTC_INTER); - val &= ~(1 << (irq - PINT_IRQ_BASE)); - ctrl_outw(val, INTC_INTER); /* disable PINTn */ - portcr_mask &= ~(3 << (irq - PINT_IRQ_BASE)*2); -} - -static void enable_pint_irq(unsigned int irq) -{ - unsigned long val; - - val = ctrl_inw(INTC_INTER); - val |= 1 << (irq - PINT_IRQ_BASE); - ctrl_outw(val, INTC_INTER); /* enable PINTn */ - portcr_mask |= 3 << (irq - PINT_IRQ_BASE)*2; -} - -static void mask_and_ack_pint(unsigned int irq) -{ - disable_pint_irq(irq); -} - -static void end_pint_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - enable_pint_irq(irq); -} - -void make_pint_irq(unsigned int irq) -{ - disable_irq_nosync(irq); - irq_desc[irq].chip = &pint_irq_type; - disable_pint_irq(irq); -} - -static struct ipr_data pint_ipr_map[] = { - { PINT0_IRQ, PINT0_IPR_ADDR, PINT0_IPR_POS, PINT0_PRIORITY }, - { PINT8_IRQ, PINT8_IPR_ADDR, PINT8_IPR_POS, PINT8_PRIORITY }, -}; - -void __init init_IRQ_pint(void) -{ - int i; - - make_ipr_irq(pint_ipr_map, ARRAY_SIZE(pint_ipr_map)); - - enable_irq(PINT0_IRQ); - enable_irq(PINT8_IRQ); - - for(i = 0; i < 16; i++) - make_pint_irq(PINT_IRQ_BASE + i); - - for(i = 0; i < 256; i++) { - if (i & 1) - pint_map[i] = 0; - else if (i & 2) - pint_map[i] = 1; - else if (i & 4) - pint_map[i] = 2; - else if (i & 8) - pint_map[i] = 3; - else if (i & 0x10) - pint_map[i] = 4; - else if (i & 0x20) - pint_map[i] = 5; - else if (i & 0x40) - pint_map[i] = 6; - else if (i & 0x80) - pint_map[i] = 7; - } -} - -int ipr_irq_demux(int irq) -{ - unsigned long creg, dreg, d, sav; - - if (irq == PINT0_IRQ) { -#if defined(CONFIG_CPU_SUBTYPE_SH7705) || defined(CONFIG_CPU_SUBTYPE_SH7707) - creg = PORT_PACR; - dreg = PORT_PADR; -#else - creg = PORT_PCCR; - dreg = PORT_PCDR; -#endif - sav = ctrl_inw(creg); - ctrl_outw(sav | portcr_mask, creg); - d = (~ctrl_inb(dreg) ^ ctrl_inw(INTC_ICR2)) & - ctrl_inw(INTC_INTER) & 0xff; - ctrl_outw(sav, creg); - - if (d == 0) - return irq; - - return PINT_IRQ_BASE + pint_map[d]; - } else if (irq == PINT8_IRQ) { -#if defined(CONFIG_CPU_SUBTYPE_SH7705) || defined(CONFIG_CPU_SUBTYPE_SH7707) - creg = PORT_PBCR; - dreg = PORT_PBDR; -#else - creg = PORT_PFCR; - dreg = PORT_PFDR; -#endif - sav = ctrl_inw(creg); - ctrl_outw(sav | (portcr_mask >> 16), creg); - d = (~ctrl_inb(dreg) ^ (ctrl_inw(INTC_ICR2) >> 8)) & - (ctrl_inw(INTC_INTER) >> 8) & 0xff; - ctrl_outw(sav, creg); - - if (d == 0) - return irq; - - return PINT_IRQ_BASE + 8 + pint_map[d]; - } - - return irq; -} - diff --git a/trunk/arch/sh/kernel/cpu/sh3/Makefile b/trunk/arch/sh/kernel/cpu/sh3/Makefile index 09faa056cd43..55b750763f66 100644 --- a/trunk/arch/sh/kernel/cpu/sh3/Makefile +++ b/trunk/arch/sh/kernel/cpu/sh3/Makefile @@ -10,16 +10,14 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7706) += setup-sh7709.o obj-$(CONFIG_CPU_SUBTYPE_SH7707) += setup-sh7709.o obj-$(CONFIG_CPU_SUBTYPE_SH7708) += setup-sh7708.o obj-$(CONFIG_CPU_SUBTYPE_SH7709) += setup-sh7709.o -obj-$(CONFIG_CPU_SUBTYPE_SH7300) += setup-sh7300.o obj-$(CONFIG_CPU_SUBTYPE_SH7710) += setup-sh7710.o obj-$(CONFIG_CPU_SUBTYPE_SH7712) += setup-sh7710.o # Primary on-chip clocks (common) clock-$(CONFIG_CPU_SH3) := clock-sh3.o -clock-$(CONFIG_CPU_SUBTYPE_SH7300) := clock-sh7300.o clock-$(CONFIG_CPU_SUBTYPE_SH7705) := clock-sh7705.o clock-$(CONFIG_CPU_SUBTYPE_SH7706) := clock-sh7706.o clock-$(CONFIG_CPU_SUBTYPE_SH7709) := clock-sh7709.o -clock-$(CONFIG_CPU_SUBTYPE_SH7710) := clock-sh7300.o +clock-$(CONFIG_CPU_SUBTYPE_SH7710) := clock-sh7710.o obj-y += $(clock-y) diff --git a/trunk/arch/sh/kernel/cpu/sh3/clock-sh7300.c b/trunk/arch/sh/kernel/cpu/sh3/clock-sh7710.c similarity index 74% rename from trunk/arch/sh/kernel/cpu/sh3/clock-sh7300.c rename to trunk/arch/sh/kernel/cpu/sh3/clock-sh7710.c index e804174b9625..4744c50ec449 100644 --- a/trunk/arch/sh/kernel/cpu/sh3/clock-sh7300.c +++ b/trunk/arch/sh/kernel/cpu/sh3/clock-sh7710.c @@ -1,7 +1,7 @@ /* - * arch/sh/kernel/cpu/sh3/clock-sh7300.c + * arch/sh/kernel/cpu/sh3/clock-sh7710.c * - * SH7300 support for the clock framework + * SH7710 support for the clock framework * * Copyright (C) 2005 Paul Mundt * @@ -29,7 +29,7 @@ static void master_clk_init(struct clk *clk) clk->rate *= md_table[ctrl_inw(FRQCR) & 0x0007]; } -static struct clk_ops sh7300_master_clk_ops = { +static struct clk_ops sh7710_master_clk_ops = { .init = master_clk_init, }; @@ -39,7 +39,7 @@ static void module_clk_recalc(struct clk *clk) clk->rate = clk->parent->rate / md_table[idx]; } -static struct clk_ops sh7300_module_clk_ops = { +static struct clk_ops sh7710_module_clk_ops = { .recalc = module_clk_recalc, }; @@ -49,7 +49,7 @@ static void bus_clk_recalc(struct clk *clk) clk->rate = clk->parent->rate / md_table[idx]; } -static struct clk_ops sh7300_bus_clk_ops = { +static struct clk_ops sh7710_bus_clk_ops = { .recalc = bus_clk_recalc, }; @@ -59,20 +59,20 @@ static void cpu_clk_recalc(struct clk *clk) clk->rate = clk->parent->rate / md_table[idx]; } -static struct clk_ops sh7300_cpu_clk_ops = { +static struct clk_ops sh7710_cpu_clk_ops = { .recalc = cpu_clk_recalc, }; -static struct clk_ops *sh7300_clk_ops[] = { - &sh7300_master_clk_ops, - &sh7300_module_clk_ops, - &sh7300_bus_clk_ops, - &sh7300_cpu_clk_ops, +static struct clk_ops *sh7710_clk_ops[] = { + &sh7710_master_clk_ops, + &sh7710_module_clk_ops, + &sh7710_bus_clk_ops, + &sh7710_cpu_clk_ops, }; void __init arch_init_clk_ops(struct clk_ops **ops, int idx) { - if (idx < ARRAY_SIZE(sh7300_clk_ops)) - *ops = sh7300_clk_ops[idx]; + if (idx < ARRAY_SIZE(sh7710_clk_ops)) + *ops = sh7710_clk_ops[idx]; } diff --git a/trunk/arch/sh/kernel/cpu/sh3/setup-sh7300.c b/trunk/arch/sh/kernel/cpu/sh3/setup-sh7300.c deleted file mode 100644 index ab4d204bfba5..000000000000 --- a/trunk/arch/sh/kernel/cpu/sh3/setup-sh7300.c +++ /dev/null @@ -1,43 +0,0 @@ -/* - * SH7300 Setup - * - * Copyright (C) 2006 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include -#include -#include -#include - -static struct plat_sci_port sci_platform_data[] = { - { - .mapbase = 0xa4430000, - .flags = UPF_BOOT_AUTOCONF, - .type = PORT_SCI, - .irqs = { 80, 80, 80, 80 }, - }, { - .flags = 0, - } -}; - -static struct platform_device sci_device = { - .name = "sh-sci", - .id = -1, - .dev = { - .platform_data = sci_platform_data, - }, -}; - -static struct platform_device *sh7300_devices[] __initdata = { - &sci_device, -}; - -static int __init sh7300_devices_setup(void) -{ - return platform_add_devices(sh7300_devices, - ARRAY_SIZE(sh7300_devices)); -} -__initcall(sh7300_devices_setup); diff --git a/trunk/arch/sh/kernel/cpu/sh4/probe.c b/trunk/arch/sh/kernel/cpu/sh4/probe.c index 66c3f75647b2..98d28fb1ce16 100644 --- a/trunk/arch/sh/kernel/cpu/sh4/probe.c +++ b/trunk/arch/sh/kernel/cpu/sh4/probe.c @@ -90,12 +90,6 @@ int __init detect_cpu_and_cache_system(void) current_cpu_data.type = CPU_SH7751; current_cpu_data.flags |= CPU_HAS_FPU; break; - case 0x2000: - current_cpu_data.type = CPU_SH73180; - current_cpu_data.icache.ways = 4; - current_cpu_data.dcache.ways = 4; - current_cpu_data.flags |= CPU_HAS_LLSC; - break; case 0x2001: case 0x2004: current_cpu_data.type = CPU_SH7770; diff --git a/trunk/arch/sh/kernel/cpu/sh4/sq.c b/trunk/arch/sh/kernel/cpu/sh4/sq.c index b98d6c3e6f36..c21512c6044e 100644 --- a/trunk/arch/sh/kernel/cpu/sh4/sq.c +++ b/trunk/arch/sh/kernel/cpu/sh4/sq.c @@ -208,7 +208,6 @@ EXPORT_SYMBOL(sq_remap); void sq_unmap(unsigned long vaddr) { struct sq_mapping **p, *map; - struct vm_struct *vma; int page; for (p = &sq_mapping_list; (map = *p); p = &map->next) @@ -225,11 +224,18 @@ void sq_unmap(unsigned long vaddr) bitmap_release_region(sq_bitmap, page, get_order(map->size)); #ifdef CONFIG_MMU - vma = remove_vm_area((void *)(map->sq_addr & PAGE_MASK)); - if (!vma) { - printk(KERN_ERR "%s: bad address 0x%08lx\n", - __FUNCTION__, map->sq_addr); - return; + { + /* + * Tear down the VMA in the MMU case. + */ + struct vm_struct *vma; + + vma = remove_vm_area((void *)(map->sq_addr & PAGE_MASK)); + if (!vma) { + printk(KERN_ERR "%s: bad address 0x%08lx\n", + __FUNCTION__, map->sq_addr); + return; + } } #endif diff --git a/trunk/arch/sh/kernel/cpu/sh4a/Makefile b/trunk/arch/sh/kernel/cpu/sh4a/Makefile index 400623286487..e6a1fb5f8484 100644 --- a/trunk/arch/sh/kernel/cpu/sh4a/Makefile +++ b/trunk/arch/sh/kernel/cpu/sh4a/Makefile @@ -6,13 +6,11 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7770) += setup-sh7770.o obj-$(CONFIG_CPU_SUBTYPE_SH7780) += setup-sh7780.o obj-$(CONFIG_CPU_SUBTYPE_SH7785) += setup-sh7785.o -obj-$(CONFIG_CPU_SUBTYPE_SH73180) += setup-sh73180.o obj-$(CONFIG_CPU_SUBTYPE_SH7343) += setup-sh7343.o obj-$(CONFIG_CPU_SUBTYPE_SH7722) += setup-sh7722.o obj-$(CONFIG_CPU_SUBTYPE_SHX3) += setup-shx3.o # Primary on-chip clocks (common) -clock-$(CONFIG_CPU_SUBTYPE_SH73180) := clock-sh73180.o clock-$(CONFIG_CPU_SUBTYPE_SH7770) := clock-sh7770.o clock-$(CONFIG_CPU_SUBTYPE_SH7780) := clock-sh7780.o clock-$(CONFIG_CPU_SUBTYPE_SH7785) := clock-sh7785.o diff --git a/trunk/arch/sh/kernel/cpu/sh4a/clock-sh73180.c b/trunk/arch/sh/kernel/cpu/sh4a/clock-sh73180.c deleted file mode 100644 index 6d5ba373a75e..000000000000 --- a/trunk/arch/sh/kernel/cpu/sh4a/clock-sh73180.c +++ /dev/null @@ -1,81 +0,0 @@ -/* - * arch/sh/kernel/cpu/sh4a/clock-sh73180.c - * - * SH73180 support for the clock framework - * - * Copyright (C) 2005 Paul Mundt - * - * FRQCR parsing hacked out of arch/sh/kernel/time.c - * - * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka - * Copyright (C) 2000 Philipp Rumpf - * Copyright (C) 2002, 2003, 2004 Paul Mundt - * Copyright (C) 2002 M. R. Brown - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include -#include -#include -#include -#include - -/* - * SH73180 uses a common set of divisors, so this is quite simple.. - */ -static int divisors[] = { 1, 2, 3, 4, 6, 8, 12, 16 }; - -static void master_clk_init(struct clk *clk) -{ - clk->rate *= divisors[ctrl_inl(FRQCR) & 0x0007]; -} - -static struct clk_ops sh73180_master_clk_ops = { - .init = master_clk_init, -}; - -static void module_clk_recalc(struct clk *clk) -{ - int idx = (ctrl_inl(FRQCR) & 0x0007); - clk->rate = clk->parent->rate / divisors[idx]; -} - -static struct clk_ops sh73180_module_clk_ops = { - .recalc = module_clk_recalc, -}; - -static void bus_clk_recalc(struct clk *clk) -{ - int idx = (ctrl_inl(FRQCR) >> 12) & 0x0007; - clk->rate = clk->parent->rate / divisors[idx]; -} - -static struct clk_ops sh73180_bus_clk_ops = { - .recalc = bus_clk_recalc, -}; - -static void cpu_clk_recalc(struct clk *clk) -{ - int idx = (ctrl_inl(FRQCR) >> 20) & 0x0007; - clk->rate = clk->parent->rate / divisors[idx]; -} - -static struct clk_ops sh73180_cpu_clk_ops = { - .recalc = cpu_clk_recalc, -}; - -static struct clk_ops *sh73180_clk_ops[] = { - &sh73180_master_clk_ops, - &sh73180_module_clk_ops, - &sh73180_bus_clk_ops, - &sh73180_cpu_clk_ops, -}; - -void __init arch_init_clk_ops(struct clk_ops **ops, int idx) -{ - if (idx < ARRAY_SIZE(sh73180_clk_ops)) - *ops = sh73180_clk_ops[idx]; -} - diff --git a/trunk/arch/sh/kernel/cpu/sh4a/setup-sh73180.c b/trunk/arch/sh/kernel/cpu/sh4a/setup-sh73180.c deleted file mode 100644 index cc9ea1e2e5df..000000000000 --- a/trunk/arch/sh/kernel/cpu/sh4a/setup-sh73180.c +++ /dev/null @@ -1,43 +0,0 @@ -/* - * SH73180 Setup - * - * Copyright (C) 2006 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include -#include -#include -#include - -static struct plat_sci_port sci_platform_data[] = { - { - .mapbase = 0xffe80000, - .flags = UPF_BOOT_AUTOCONF, - .type = PORT_SCIF, - .irqs = { 80, 81, 83, 82 }, - }, { - .flags = 0, - } -}; - -static struct platform_device sci_device = { - .name = "sh-sci", - .id = -1, - .dev = { - .platform_data = sci_platform_data, - }, -}; - -static struct platform_device *sh73180_devices[] __initdata = { - &sci_device, -}; - -static int __init sh73180_devices_setup(void) -{ - return platform_add_devices(sh73180_devices, - ARRAY_SIZE(sh73180_devices)); -} -__initcall(sh73180_devices_setup); diff --git a/trunk/arch/sh/kernel/init_task.c b/trunk/arch/sh/kernel/init_task.c index 44053ea92936..4b449c4a6bad 100644 --- a/trunk/arch/sh/kernel/init_task.c +++ b/trunk/arch/sh/kernel/init_task.c @@ -3,7 +3,7 @@ #include #include #include - +#include #include #include diff --git a/trunk/arch/sh/kernel/process.c b/trunk/arch/sh/kernel/process.c index 6334a4c54c7c..15ae322dbd74 100644 --- a/trunk/arch/sh/kernel/process.c +++ b/trunk/arch/sh/kernel/process.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include @@ -474,7 +475,6 @@ asmlinkage int sys_execve(char __user *ufilename, char __user * __user *uargv, unsigned long get_wchan(struct task_struct *p) { - unsigned long schedule_frame; unsigned long pc; if (!p || p == current || p->state == TASK_RUNNING) @@ -484,10 +484,13 @@ unsigned long get_wchan(struct task_struct *p) * The same comment as on the Alpha applies here, too ... */ pc = thread_saved_pc(p); + +#ifdef CONFIG_FRAME_POINTER if (in_sched_functions(pc)) { - schedule_frame = (unsigned long)p->thread.sp; + unsigned long schedule_frame = (unsigned long)p->thread.sp; return ((unsigned long *)schedule_frame)[21]; } +#endif return pc; } diff --git a/trunk/arch/sh/kernel/setup.c b/trunk/arch/sh/kernel/setup.c index c14a3e95d0b1..2cf7dec0d690 100644 --- a/trunk/arch/sh/kernel/setup.c +++ b/trunk/arch/sh/kernel/setup.c @@ -276,7 +276,6 @@ void __init setup_arch(char **cmdline_p) static const char *cpu_name[] = { [CPU_SH7206] = "SH7206", [CPU_SH7619] = "SH7619", - [CPU_SH7300] = "SH7300", [CPU_SH7705] = "SH7705", [CPU_SH7706] = "SH7706", [CPU_SH7707] = "SH7707", [CPU_SH7708] = "SH7708", [CPU_SH7709] = "SH7709", [CPU_SH7710] = "SH7710", @@ -284,7 +283,7 @@ static const char *cpu_name[] = { [CPU_SH7729] = "SH7729", [CPU_SH7750] = "SH7750", [CPU_SH7750S] = "SH7750S", [CPU_SH7750R] = "SH7750R", [CPU_SH7751] = "SH7751", [CPU_SH7751R] = "SH7751R", - [CPU_SH7760] = "SH7760", [CPU_SH73180] = "SH73180", + [CPU_SH7760] = "SH7760", [CPU_ST40RA] = "ST40RA", [CPU_ST40GX1] = "ST40GX1", [CPU_SH4_202] = "SH4-202", [CPU_SH4_501] = "SH4-501", [CPU_SH7770] = "SH7770", [CPU_SH7780] = "SH7780", diff --git a/trunk/arch/sh/kernel/sys_sh.c b/trunk/arch/sh/kernel/sys_sh.c index 76b1bc7f7029..024ce5dedd8c 100644 --- a/trunk/arch/sh/kernel/sys_sh.c +++ b/trunk/arch/sh/kernel/sys_sh.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include diff --git a/trunk/arch/sh/kernel/timers/timer-tmu.c b/trunk/arch/sh/kernel/timers/timer-tmu.c index 7aca37d79766..8a545d54e2d3 100644 --- a/trunk/arch/sh/kernel/timers/timer-tmu.c +++ b/trunk/arch/sh/kernel/timers/timer-tmu.c @@ -173,8 +173,7 @@ static int tmu_timer_init(void) tmu_timer_stop(); -#if !defined(CONFIG_CPU_SUBTYPE_SH7300) && \ - !defined(CONFIG_CPU_SUBTYPE_SH7760) && \ +#if !defined(CONFIG_CPU_SUBTYPE_SH7760) && \ !defined(CONFIG_CPU_SUBTYPE_SH7785) && \ !defined(CONFIG_CPU_SUBTYPE_SHX3) ctrl_outb(TMU_TOCR_INIT, TMU_TOCR); diff --git a/trunk/arch/sh/kernel/vsyscall/vsyscall.c b/trunk/arch/sh/kernel/vsyscall/vsyscall.c index 2aa9438361bc..95f4de0800ec 100644 --- a/trunk/arch/sh/kernel/vsyscall/vsyscall.c +++ b/trunk/arch/sh/kernel/vsyscall/vsyscall.c @@ -18,6 +18,7 @@ #include #include #include +#include /* * Should the kernel map a VDSO page into processes and pass its diff --git a/trunk/arch/sh/mm/Kconfig b/trunk/arch/sh/mm/Kconfig index 70da1c8d407e..43f3972a5fb9 100644 --- a/trunk/arch/sh/mm/Kconfig +++ b/trunk/arch/sh/mm/Kconfig @@ -27,6 +27,7 @@ config CPU_SH4A config CPU_SH4AL_DSP bool select CPU_SH4A + select CPU_HAS_DSP config CPU_SUBTYPE_ST40 bool @@ -62,15 +63,10 @@ config CPU_SUBTYPE_SH7206 # SH-3 Processor Support -config CPU_SUBTYPE_SH7300 - bool "Support SH7300 processor" - select CPU_SH3 - config CPU_SUBTYPE_SH7705 bool "Support SH7705 processor" select CPU_SH3 select CPU_HAS_IPR_IRQ - select CPU_HAS_PINT_IRQ config CPU_SUBTYPE_SH7706 bool "Support SH7706 processor" @@ -82,7 +78,6 @@ config CPU_SUBTYPE_SH7706 config CPU_SUBTYPE_SH7707 bool "Support SH7707 processor" select CPU_SH3 - select CPU_HAS_PINT_IRQ help Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. @@ -97,7 +92,6 @@ config CPU_SUBTYPE_SH7709 bool "Support SH7709 processor" select CPU_SH3 select CPU_HAS_IPR_IRQ - select CPU_HAS_PINT_IRQ help Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. @@ -105,6 +99,7 @@ config CPU_SUBTYPE_SH7710 bool "Support SH7710 processor" select CPU_SH3 select CPU_HAS_IPR_IRQ + select CPU_HAS_DSP help Select SH7710 if you have a SH3-DSP SH7710 CPU. @@ -112,6 +107,7 @@ config CPU_SUBTYPE_SH7712 bool "Support SH7712 processor" select CPU_SH3 select CPU_HAS_IPR_IRQ + select CPU_HAS_DSP help Select SH7712 if you have a SH3-DSP SH7712 CPU. @@ -205,10 +201,6 @@ config CPU_SUBTYPE_SHX3 # SH4AL-DSP Processor Support -config CPU_SUBTYPE_SH73180 - bool "Support SH73180 processor" - select CPU_SH4AL_DSP - config CPU_SUBTYPE_SH7343 bool "Support SH7343 processor" select CPU_SH4AL_DSP diff --git a/trunk/arch/sh/mm/cache-sh4.c b/trunk/arch/sh/mm/cache-sh4.c index 981b04089055..86486326ef1d 100644 --- a/trunk/arch/sh/mm/cache-sh4.c +++ b/trunk/arch/sh/mm/cache-sh4.c @@ -77,16 +77,8 @@ static void __init emit_cache_params(void) /* * SH-4 has virtually indexed and physically tagged cache. */ - -/* Worst case assumed to be 64k cache, direct-mapped i.e. 4 synonym bits. */ -#define MAX_P3_MUTEXES 16 - -struct mutex p3map_mutex[MAX_P3_MUTEXES]; - void __init p3_cache_init(void) { - int i; - compute_alias(¤t_cpu_data.icache); compute_alias(¤t_cpu_data.dcache); @@ -106,12 +98,6 @@ void __init p3_cache_init(void) } emit_cache_params(); - - if (ioremap_page_range(P3SEG, P3SEG + (PAGE_SIZE * 4), 0, PAGE_KERNEL)) - panic("%s failed.", __FUNCTION__); - - for (i = 0; i < current_cpu_data.dcache.n_aliases; i++) - mutex_init(&p3map_mutex[i]); } /* diff --git a/trunk/arch/sh/mm/pg-sh4.c b/trunk/arch/sh/mm/pg-sh4.c index df69da9ca69c..25f5c6f6821d 100644 --- a/trunk/arch/sh/mm/pg-sh4.c +++ b/trunk/arch/sh/mm/pg-sh4.c @@ -2,19 +2,45 @@ * arch/sh/mm/pg-sh4.c * * Copyright (C) 1999, 2000, 2002 Niibe Yutaka - * Copyright (C) 2002 - 2005 Paul Mundt + * Copyright (C) 2002 - 2007 Paul Mundt * * Released under the terms of the GNU GPL v2.0. */ #include #include +#include #include #include -extern struct mutex p3map_mutex[]; - #define CACHE_ALIAS (current_cpu_data.dcache.alias_mask) +static inline void *kmap_coherent(struct page *page, unsigned long addr) +{ + enum fixed_addresses idx; + unsigned long vaddr, flags; + pte_t pte; + + inc_preempt_count(); + + idx = (addr & current_cpu_data.dcache.alias_mask) >> PAGE_SHIFT; + vaddr = __fix_to_virt(FIX_CMAP_END - idx); + pte = mk_pte(page, PAGE_KERNEL); + + local_irq_save(flags); + flush_tlb_one(get_asid(), vaddr); + local_irq_restore(flags); + + update_mmu_cache(NULL, vaddr, pte); + + return (void *)vaddr; +} + +static inline void kunmap_coherent(struct page *page) +{ + dec_preempt_count(); + preempt_check_resched(); +} + /* * clear_user_page * @to: P1 address @@ -27,25 +53,9 @@ void clear_user_page(void *to, unsigned long address, struct page *page) if (((address ^ (unsigned long)to) & CACHE_ALIAS) == 0) clear_page(to); else { - unsigned long phys_addr = PHYSADDR(to); - unsigned long p3_addr = P3SEG + (address & CACHE_ALIAS); - pgd_t *pgd = pgd_offset_k(p3_addr); - pud_t *pud = pud_offset(pgd, p3_addr); - pmd_t *pmd = pmd_offset(pud, p3_addr); - pte_t *pte = pte_offset_kernel(pmd, p3_addr); - pte_t entry; - unsigned long flags; - - entry = pfn_pte(phys_addr >> PAGE_SHIFT, PAGE_KERNEL); - mutex_lock(&p3map_mutex[(address & CACHE_ALIAS)>>12]); - set_pte(pte, entry); - local_irq_save(flags); - flush_tlb_one(get_asid(), p3_addr); - local_irq_restore(flags); - update_mmu_cache(NULL, p3_addr, entry); - __clear_user_page((void *)p3_addr, to); - pte_clear(&init_mm, p3_addr, pte); - mutex_unlock(&p3map_mutex[(address & CACHE_ALIAS)>>12]); + void *vto = kmap_coherent(page, address); + __clear_user_page(vto, to); + kunmap_coherent(vto); } } @@ -63,25 +73,9 @@ void copy_user_page(void *to, void *from, unsigned long address, if (((address ^ (unsigned long)to) & CACHE_ALIAS) == 0) copy_page(to, from); else { - unsigned long phys_addr = PHYSADDR(to); - unsigned long p3_addr = P3SEG + (address & CACHE_ALIAS); - pgd_t *pgd = pgd_offset_k(p3_addr); - pud_t *pud = pud_offset(pgd, p3_addr); - pmd_t *pmd = pmd_offset(pud, p3_addr); - pte_t *pte = pte_offset_kernel(pmd, p3_addr); - pte_t entry; - unsigned long flags; - - entry = pfn_pte(phys_addr >> PAGE_SHIFT, PAGE_KERNEL); - mutex_lock(&p3map_mutex[(address & CACHE_ALIAS)>>12]); - set_pte(pte, entry); - local_irq_save(flags); - flush_tlb_one(get_asid(), p3_addr); - local_irq_restore(flags); - update_mmu_cache(NULL, p3_addr, entry); - __copy_user_page((void *)p3_addr, from, to); - pte_clear(&init_mm, p3_addr, pte); - mutex_unlock(&p3map_mutex[(address & CACHE_ALIAS)>>12]); + void *vfrom = kmap_coherent(page, address); + __copy_user_page(vfrom, from, to); + kunmap_coherent(vfrom); } } diff --git a/trunk/arch/sh/tools/mach-types b/trunk/arch/sh/tools/mach-types index 4b5e9305092e..439bfe3d29af 100644 --- a/trunk/arch/sh/tools/mach-types +++ b/trunk/arch/sh/tools/mach-types @@ -8,12 +8,10 @@ SE SH_SOLUTION_ENGINE 7751SE SH_7751_SOLUTION_ENGINE 7722SE SH_7722_SOLUTION_ENGINE -7300SE SH_7300_SOLUTION_ENGINE 7343SE SH_7343_SOLUTION_ENGINE 7206SE SH_7206_SOLUTION_ENGINE 7619SE SH_7619_SOLUTION_ENGINE 7780SE SH_7780_SOLUTION_ENGINE -73180SE SH_73180_SOLUTION_ENGINE 7751SYSTEMH SH_7751_SYSTEMH HP6XX SH_HP6XX HD64461 HD64461 diff --git a/trunk/arch/sh64/Kconfig b/trunk/arch/sh64/Kconfig index ff654204b7d4..5664631d8ae5 100644 --- a/trunk/arch/sh64/Kconfig +++ b/trunk/arch/sh64/Kconfig @@ -47,6 +47,9 @@ config ARCH_HAS_ILOG2_U64 bool default n +config ARCH_NO_VIRT_TO_BUS + def_bool y + source init/Kconfig menu "System type" diff --git a/trunk/arch/sh64/kernel/init_task.c b/trunk/arch/sh64/kernel/init_task.c index de2d07db1f88..deee8bfd3270 100644 --- a/trunk/arch/sh64/kernel/init_task.c +++ b/trunk/arch/sh64/kernel/init_task.c @@ -14,7 +14,7 @@ #include #include #include - +#include #include #include diff --git a/trunk/arch/sh64/kernel/irq_intc.c b/trunk/arch/sh64/kernel/irq_intc.c index 42c07d2e71d9..3b63a93198f2 100644 --- a/trunk/arch/sh64/kernel/irq_intc.c +++ b/trunk/arch/sh64/kernel/irq_intc.c @@ -16,6 +16,7 @@ */ #include +#include #include #include #include diff --git a/trunk/arch/sh64/kernel/pci-dma.c b/trunk/arch/sh64/kernel/pci-dma.c index a36c3d71a3fe..a9328f894755 100644 --- a/trunk/arch/sh64/kernel/pci-dma.c +++ b/trunk/arch/sh64/kernel/pci-dma.c @@ -30,7 +30,7 @@ void *consistent_alloc(struct pci_dev *hwdev, size_t size, if (vp != NULL) { memset(vp, 0, size); - *dma_handle = virt_to_bus(ret); + *dma_handle = virt_to_phys(ret); dma_cache_wback_inv((unsigned long)ret, size); } @@ -42,7 +42,7 @@ void consistent_free(struct pci_dev *hwdev, size_t size, { void *alloc; - alloc = bus_to_virt((unsigned long)dma_handle); + alloc = phys_to_virt((unsigned long)dma_handle); free_pages((unsigned long)alloc, get_order(size)); iounmap(vaddr); diff --git a/trunk/arch/sh64/kernel/process.c b/trunk/arch/sh64/kernel/process.c index 1b89c9dfb93d..ceb9458abda4 100644 --- a/trunk/arch/sh64/kernel/process.c +++ b/trunk/arch/sh64/kernel/process.c @@ -21,6 +21,7 @@ * This file handles the architecture-dependent parts of process handling.. */ #include +#include #include #include #include diff --git a/trunk/arch/sh64/kernel/sys_sh64.c b/trunk/arch/sh64/kernel/sys_sh64.c index 19126daf9f4c..b7f18e298a20 100644 --- a/trunk/arch/sh64/kernel/sys_sh64.c +++ b/trunk/arch/sh64/kernel/sys_sh64.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include diff --git a/trunk/arch/sh64/lib/dbg.c b/trunk/arch/sh64/lib/dbg.c index 4310fc87444e..97816e0baf19 100644 --- a/trunk/arch/sh64/lib/dbg.c +++ b/trunk/arch/sh64/lib/dbg.c @@ -12,6 +12,7 @@ #include #include #include +#include #include typedef u64 regType_t; diff --git a/trunk/arch/um/drivers/chan_kern.c b/trunk/arch/um/drivers/chan_kern.c index 368d3e97dfd9..629b00e3b0b0 100644 --- a/trunk/arch/um/drivers/chan_kern.c +++ b/trunk/arch/um/drivers/chan_kern.c @@ -157,7 +157,7 @@ static void tty_receive_char(struct tty_struct *tty, char ch) static int open_one_chan(struct chan *chan) { - int fd; + int fd, err; if(chan->opened) return 0; @@ -168,6 +168,13 @@ static int open_one_chan(struct chan *chan) chan->data, &chan->dev); if(fd < 0) return fd; + + err = os_set_fd_block(fd, 0); + if (err) { + (*chan->ops->close)(fd, chan->data); + return err; + } + chan->fd = fd; chan->opened = 1; diff --git a/trunk/arch/x86_64/kernel/Makefile b/trunk/arch/x86_64/kernel/Makefile index d1d18c1ea0f4..ff5d8c9b96d9 100644 --- a/trunk/arch/x86_64/kernel/Makefile +++ b/trunk/arch/x86_64/kernel/Makefile @@ -32,7 +32,6 @@ obj-$(CONFIG_EARLY_PRINTK) += early_printk.o obj-$(CONFIG_IOMMU) += pci-gart.o aperture.o obj-$(CONFIG_CALGARY_IOMMU) += pci-calgary.o tce.o obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o -obj-$(CONFIG_SERIAL_8250) += legacy_serial.o obj-$(CONFIG_KPROBES) += kprobes.o obj-$(CONFIG_X86_PM_TIMER) += pmtimer.o obj-$(CONFIG_X86_VSMP) += vsmp.o @@ -51,7 +50,6 @@ CFLAGS_vsyscall.o := $(PROFILING) -g0 therm_throt-y += ../../i386/kernel/cpu/mcheck/therm_throt.o bootflag-y += ../../i386/kernel/bootflag.o -legacy_serial-y += ../../i386/kernel/legacy_serial.o cpuid-$(subst m,y,$(CONFIG_X86_CPUID)) += ../../i386/kernel/cpuid.o topology-y += ../../i386/kernel/topology.o microcode-$(subst m,y,$(CONFIG_MICROCODE)) += ../../i386/kernel/microcode.o diff --git a/trunk/arch/x86_64/kernel/bugs.c b/trunk/arch/x86_64/kernel/bugs.c index c3c6b91566ed..4e5e9d364d63 100644 --- a/trunk/arch/x86_64/kernel/bugs.c +++ b/trunk/arch/x86_64/kernel/bugs.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include diff --git a/trunk/arch/x86_64/kernel/entry.S b/trunk/arch/x86_64/kernel/entry.S index 830cfc6ee8cb..1d232e5f5658 100644 --- a/trunk/arch/x86_64/kernel/entry.S +++ b/trunk/arch/x86_64/kernel/entry.S @@ -282,7 +282,7 @@ sysret_careful: sysret_signal: TRACE_IRQS_ON sti - testl $(_TIF_SIGPENDING|_TIF_NOTIFY_RESUME|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY),%edx + testl $(_TIF_SIGPENDING|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY),%edx jz 1f /* Really a signal */ @@ -375,7 +375,7 @@ int_very_careful: jmp int_restore_rest int_signal: - testl $(_TIF_NOTIFY_RESUME|_TIF_SIGPENDING|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY),%edx + testl $(_TIF_SIGPENDING|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY),%edx jz 1f movq %rsp,%rdi # &ptregs -> arg1 xorl %esi,%esi # oldset -> arg2 @@ -599,7 +599,7 @@ retint_careful: jmp retint_check retint_signal: - testl $(_TIF_SIGPENDING|_TIF_NOTIFY_RESUME|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY),%edx + testl $(_TIF_SIGPENDING|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY),%edx jz retint_swapgs TRACE_IRQS_ON sti diff --git a/trunk/arch/x86_64/kernel/tce.c b/trunk/arch/x86_64/kernel/tce.c index 821527e7faa3..e3f2569b2c44 100644 --- a/trunk/arch/x86_64/kernel/tce.c +++ b/trunk/arch/x86_64/kernel/tce.c @@ -131,7 +131,7 @@ static int tce_table_setparms(struct pci_dev *dev, struct iommu_table *tbl) return ret; } -int build_tce_table(struct pci_dev *dev, void __iomem *bbar) +int __init build_tce_table(struct pci_dev *dev, void __iomem *bbar) { struct iommu_table *tbl; int ret; diff --git a/trunk/drivers/acorn/README b/trunk/drivers/acorn/README deleted file mode 100644 index d399c09ca61c..000000000000 --- a/trunk/drivers/acorn/README +++ /dev/null @@ -1 +0,0 @@ -Drivers for the ACORN "podule" ARM specific bus. diff --git a/trunk/drivers/acorn/block/Kconfig b/trunk/drivers/acorn/block/Kconfig deleted file mode 100644 index a0ff25ea439f..000000000000 --- a/trunk/drivers/acorn/block/Kconfig +++ /dev/null @@ -1,36 +0,0 @@ -# -# Block device driver configuration -# - -menu "Acorn-specific block devices" - depends on ARCH_ARC || ARCH_A5K - -config BLK_DEV_FD1772 - tristate "Old Archimedes floppy (1772) support" - depends on ARCH_ARC || ARCH_A5K - help - Support the floppy drive on the Acorn Archimedes (A300, A4x0, A540, - R140 and R260) series of computers; it supports only 720K floppies - at the moment. If you don't have one of these machines just answer - N. - -config BLK_DEV_MFM - tristate "MFM harddisk support" - depends on ARCH_ARC || ARCH_A5K - help - Support the MFM hard drives on the Acorn Archimedes both - on-board the A4x0 motherboards and via the Acorn MFM podules. - Drives up to 64MB are supported. If you haven't got one of these - machines or drives just say N. - -config BLK_DEV_MFM_AUTODETECT - bool "Autodetect hard drive geometry" - depends on BLK_DEV_MFM - help - If you answer Y, the MFM code will attempt to automatically detect - the cylinders/heads/sectors count on your hard drive. WARNING: This - sometimes doesn't work and it also does some dodgy stuff which - potentially might damage your drive. - -endmenu - diff --git a/trunk/drivers/acorn/block/Makefile b/trunk/drivers/acorn/block/Makefile deleted file mode 100644 index 38a9afe8e03f..000000000000 --- a/trunk/drivers/acorn/block/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# -# Makefile for the Acorn block device drivers. -# - -fd1772_mod-objs := fd1772.o fd1772dma.o -mfmhd_mod-objs := mfmhd.o mfm.o - -obj-$(CONFIG_BLK_DEV_FD1772) += fd1772_mod.o -obj-$(CONFIG_BLK_DEV_MFM) += mfmhd_mod.o diff --git a/trunk/drivers/acorn/block/fd1772.c b/trunk/drivers/acorn/block/fd1772.c deleted file mode 100644 index d7e18ce8dad9..000000000000 --- a/trunk/drivers/acorn/block/fd1772.c +++ /dev/null @@ -1,1604 +0,0 @@ -/* - * linux/kernel/arch/arm/drivers/block/fd1772.c - * Based on ataflop.c in the m68k Linux - * Copyright (C) 1993 Greg Harp - * Atari Support by Bjoern Brauel, Roman Hodek - * Archimedes Support by Dave Gilbert (linux@treblig.org) - * - * Big cleanup Sep 11..14 1994 Roman Hodek: - * - Driver now works interrupt driven - * - Support for two drives; should work, but I cannot test that :-( - * - Reading is done in whole tracks and buffered to speed up things - * - Disk change detection and drive deselecting after motor-off - * similar to TOS - * - Autodetection of disk format (DD/HD); untested yet, because I - * don't have an HD drive :-( - * - * Fixes Nov 13 1994 Martin Schaller: - * - Autodetection works now - * - Support for 5 1/4" disks - * - Removed drive type (unknown on atari) - * - Do seeks with 8 Mhz - * - * Changes by Andreas Schwab: - * - After errors in multiple read mode try again reading single sectors - * (Feb 1995): - * - Clean up error handling - * - Set blk_size for proper size checking - * - Initialize track register when testing presence of floppy - * - Implement some ioctl's - * - * Changes by Torsten Lang: - * - When probing the floppies we should add the FDC1772CMDADD_H flag since - * the FDC1772 will otherwise wait forever when no disk is inserted... - * - * Things left to do: - * - Formatting - * - Maybe a better strategy for disk change detection (does anyone - * know one?) - * - There are some strange problems left: The strangest one is - * that, at least on my TT (4+4MB), the first 2 Bytes of the last - * page of the TT-Ram (!) change their contents (some bits get - * set) while a floppy DMA is going on. But there are no accesses - * to these memory locations from the kernel... (I tested that by - * making the page read-only). I cannot explain what's going on... - * - Sometimes the drive-change-detection stops to work. The - * function is still called, but the WP bit always reads as 0... - * Maybe a problem with the status reg mode or a timing problem. - * Note 10/12/94: The change detection now seems to work reliably. - * There is no proof, but I've seen no hang for a long time... - * - * ARCHIMEDES changes: (gilbertd@cs.man.ac.uk) - * 26/12/95 - Changed all names starting with FDC to FDC1772 - * Removed all references to clock speed of FDC - we're stuck with 8MHz - * Modified disk_type structure to remove HD formats - * - * 7/ 1/96 - Wrote FIQ code, removed most remaining atariisms - * - * 13/ 1/96 - Well I think its read a single sector; but there is a problem - * fd_rwsec_done which is called in FIQ mode starts another transfer - * off (in fd_rwsec) while still in FIQ mode. Because its still in - * FIQ mode it can't service the DMA and loses data. So need to - * heavily restructure. - * 14/ 1/96 - Found that the definitions of the register numbers of the - * FDC were multiplied by 2 in the header for the 16bit words - * of the atari so half the writes were going in the wrong place. - * Also realised that the FIQ entry didn't make any attempt to - * preserve registers or return correctly; now in assembler. - * - * 11/ 2/96 - Hmm - doesn't work on real machine. Auto detect doesn't - * and hacking that past seems to wait forever - check motor - * being turned on. - * - * 17/ 2/96 - still having problems - forcing track to -1 when selecting - * new drives seems to allow it to read first few sectors - * but then we get solid hangs at apparently random places - * which change depending what is happening. - * - * 9/ 3/96 - Fiddled a lot of stuff around to move to kernel 1.3.35 - * A lot of fiddling in DMA stuff. Having problems with it - * constnatly thinking its timeing out. Ah - its timeout - * was set to (6*HZ) rather than jiffies+(6*HZ). Now giving - * duff data! - * - * 5/ 4/96 - Made it use the new IOC_ macros rather than *ioc - * Hmm - giving unexpected FIQ and then timeouts - * 18/ 8/96 - Ran through indent -kr -i8 - * Some changes to disc change detect; don't know how well it - * works. - * 24/ 8/96 - Put all the track buffering code back in from the atari - * code - I wonder if it will still work... No :-) - * Still works if I turn off track buffering. - * 25/ 8/96 - Changed the timer expires that I'd added back to be - * jiffies + ....; and it all sprang to life! Got 2.8K/sec - * off a cp -r of a 679K disc (showed 94% cpu usage!) - * (PC gets 14.3K/sec - 0% CPU!) Hmm - hard drive corrupt! - * Also perhaps that compile was with cache off. - * changed cli in fd_readtrack_check to cliIF - * changed vmallocs to kmalloc (whats the difference!!) - * Removed the busy wait loop in do_fd_request and replaced - * by a routine on tq_immediate; only 11% cpu on a dd off the - * raw disc - but the speed is the same. - * 1/ 9/96 - Idea (failed!) - set the 'disable spin-up sequence' - * when we read the track if we know the motor is on; didn't - * help - perhaps we have to do it in stepping as well. - * Nope. Still doesn't help. - * Hmm - what seems to be happening is that fd_readtrack_check - * is never getting called. Its job is to terminate the read - * just after we think we should have got the data; otherwise - * the fdc takes 1 second to timeout; which is what's happening - * Now I can see 'readtrack_timer' being set (which should do the - * call); but it never seems to be called - hmm! - * OK - I've moved the check to my tq_immediate code - - * and it WORKS! 13.95K/second at 19% CPU. - * I wish I knew why that timer didn't work..... - * - * 16/11/96 - Fiddled and frigged for 2.0.18 - * - * DAG 30/01/99 - Started frobbing for 2.2.1 - * DAG 20/06/99 - A little more frobbing: - * Included include/asm/uaccess.h for get_user/put_user - * - * DAG 1/09/00 - Dusted off for 2.4.0-test7 - * MAX_SECTORS was name clashing so it is now FD1772_... - * Minor parameter, name layouts for 2.4.x differences - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - - -/* Note: FD_MAX_UNITS could be redefined to 2 for the Atari (with - * little additional rework in this file). But I'm not yet sure if - * some other code depends on the number of floppies... (It is defined - * in a public header!) - */ -#if 0 -#undef FD_MAX_UNITS -#define FD_MAX_UNITS 2 -#endif - -/* Ditto worries for Arc - DAG */ -#define FD_MAX_UNITS 4 -#define TRACKBUFFER 0 -/*#define DEBUG*/ - -#ifdef DEBUG -#define DPRINT(a) printk a -#else -#define DPRINT(a) -#endif - -static struct request_queue *floppy_queue; - -#define MAJOR_NR FLOPPY_MAJOR -#define FLOPPY_DMA 0 -#define DEVICE_NAME "floppy" -#define QUEUE (floppy_queue) -#define CURRENT elv_next_request(floppy_queue) - -/* Disk types: DD */ -static struct archy_disk_type { - const char *name; - unsigned spt; /* sectors per track */ - unsigned blocks; /* total number of blocks */ - unsigned stretch; /* track doubling ? */ -} disk_type[] = { - - { "d360", 9, 720, 0 }, /* 360kB diskette */ - { "D360", 9, 720, 1 }, /* 360kb in 720kb drive */ - { "D720", 9, 1440, 0 }, /* 720kb diskette (DD) */ - /*{ "D820", 10,1640, 0}, *//* DD disk with 82 tracks/10 sectors - - DAG - can't see how type detect can distinguish this - from 720K until it reads block 4 by which time its too late! */ -}; - -#define NUM_DISK_TYPES (sizeof(disk_type)/sizeof(*disk_type)) - -/* - * Maximum disk size (in kilobytes). This default is used whenever the - * current disk size is unknown. - */ -#define MAX_DISK_SIZE 720 - -static struct gendisk *disks[FD_MAX_UNIT]; - -/* current info on each unit */ -static struct archy_floppy_struct { - int connected; /* !=0 : drive is connected */ - int autoprobe; /* !=0 : do autoprobe */ - - struct archy_disk_type *disktype; /* current type of disk */ - - int track; /* current head position or -1 - * if unknown */ - unsigned int steprate; /* steprate setting */ - unsigned int wpstat; /* current state of WP signal - * (for disk change detection) */ -} unit[FD_MAX_UNITS]; - -/* DAG: On Arc we spin on a flag being cleared by fdc1772_comendhandler which - is an assembler routine */ -extern void fdc1772_comendhandler(void); /* Actually doens't have these parameters - see fd1772.S */ -extern volatile int fdc1772_comendstatus; -extern volatile int fdc1772_fdc_int_done; - -#define FDC1772BASE ((0x210000>>2)|0x80000000) - -#define FDC1772_READ(reg) inb(FDC1772BASE+(reg/2)) - -/* DAG: You wouldn't be silly to ask why FDC1772_WRITE is a function rather - than the #def below - well simple - the #def won't compile - and I - don't understand why (__outwc not defined) */ -/* NOTE: Reg is 0,2,4,6 as opposed to 0,1,2,3 or 0,4,8,12 to keep compatibility - with the ST version of fd1772.h */ -/*#define FDC1772_WRITE(reg,val) outw(val,(reg+FDC1772BASE)); */ -void FDC1772_WRITE(int reg, unsigned char val) -{ - if (reg == FDC1772REG_CMD) { - DPRINT(("FDC1772_WRITE new command 0x%x @ %d\n", val,jiffies)); - if (fdc1772_fdc_int_done) { - DPRINT(("FDC1772_WRITE: Hmm fdc1772_fdc_int_done true - resetting\n")); - fdc1772_fdc_int_done = 0; - }; - }; - outb(val, (reg / 2) + FDC1772BASE); -}; - -#define FD1772_MAX_SECTORS 22 - -unsigned char *DMABuffer; /* buffer for writes */ -/*static unsigned long PhysDMABuffer; *//* physical address */ -/* DAG: On Arc we just go straight for the DMA buffer */ -#define PhysDMABuffer DMABuffer - -#ifdef TRACKBUFFER -unsigned char *TrackBuffer; /* buffer for reads */ -#define PhysTrackBuffer TrackBuffer /* physical address */ -static int BufferDrive, BufferSide, BufferTrack; -static int read_track; /* non-zero if we are reading whole tracks */ - -#define SECTOR_BUFFER(sec) (TrackBuffer + ((sec)-1)*512) -#define IS_BUFFERED(drive,side,track) \ - (BufferDrive == (drive) && BufferSide == (side) && BufferTrack == (track)) -#endif - -/* - * These are global variables, as that's the easiest way to give - * information to interrupts. They are the data used for the current - * request. - */ -static int SelectedDrive = 0; -static int ReqCmd, ReqBlock; -static int ReqSide, ReqTrack, ReqSector, ReqCnt; -static int HeadSettleFlag = 0; -static unsigned char *ReqData, *ReqBuffer; -static int MotorOn = 0, MotorOffTrys; - -/* Synchronization of FDC1772 access. */ -static volatile int fdc_busy = 0; -static DECLARE_WAIT_QUEUE_HEAD(fdc_wait); - - -/* long req'd for set_bit --RR */ -static unsigned long changed_floppies = 0xff, fake_change = 0; -#define CHECK_CHANGE_DELAY HZ/2 - -/* DAG - increased to 30*HZ - not sure if this is the correct thing to do */ -#define FD_MOTOR_OFF_DELAY (10*HZ) -#define FD_MOTOR_OFF_MAXTRY (10*20) - -#define FLOPPY_TIMEOUT (6*HZ) -#define RECALIBRATE_ERRORS 4 /* After this many errors the drive - * will be recalibrated. */ -#define MAX_ERRORS 8 /* After this many errors the driver - * will give up. */ - -#define START_MOTOR_OFF_TIMER(delay) \ - do { \ - motor_off_timer.expires = jiffies + (delay); \ - add_timer( &motor_off_timer ); \ - MotorOffTrys = 0; \ - } while(0) - -#define START_CHECK_CHANGE_TIMER(delay) \ - do { \ - mod_timer(&fd_timer, jiffies + (delay)); \ - } while(0) - -#define START_TIMEOUT() \ - do { \ - mod_timer(&timeout_timer, jiffies+FLOPPY_TIMEOUT); \ - } while(0) - -#define STOP_TIMEOUT() \ - do { \ - del_timer( &timeout_timer ); \ - } while(0) - -#define ENABLE_IRQ() enable_irq(FIQ_FD1772+64); - -#define DISABLE_IRQ() disable_irq(FIQ_FD1772+64); - -static void fd1772_checkint(void); - -DECLARE_WORK(fd1772_tq, (void *)fd1772_checkint, NULL); -/* - * The driver is trying to determine the correct media format - * while Probing is set. fd_rwsec_done() clears it after a - * successful access. - */ -static int Probing = 0; - -/* This flag is set when a dummy seek is necessary to make the WP - * status bit accessible. - */ -static int NeedSeek = 0; - - -/***************************** Prototypes *****************************/ - -static void fd_select_side(int side); -static void fd_select_drive(int drive); -static void fd_deselect(void); -static void fd_motor_off_timer(unsigned long dummy); -static void check_change(unsigned long dummy); -static void floppy_irqconsequencehandler(void); -static void fd_error(void); -static void do_fd_action(int drive); -static void fd_calibrate(void); -static void fd_calibrate_done(int status); -static void fd_seek(void); -static void fd_seek_done(int status); -static void fd_rwsec(void); -#ifdef TRACKBUFFER -static void fd_readtrack_check( unsigned long dummy ); -#endif -static void fd_rwsec_done(int status); -static void fd_times_out(unsigned long dummy); -static void finish_fdc(void); -static void finish_fdc_done(int dummy); -static void floppy_off(unsigned int nr); -static void setup_req_params(int drive); -static void redo_fd_request(void); -static int fd_ioctl(struct inode *inode, struct file *filp, unsigned int - cmd, unsigned long param); -static void fd_probe(int drive); -static int fd_test_drive_present(int drive); -static void config_types(void); -static int floppy_open(struct inode *inode, struct file *filp); -static int floppy_release(struct inode *inode, struct file *filp); -static void do_fd_request(struct request_queue *); - -/************************* End of Prototypes **************************/ - -static DEFINE_TIMER(motor_off_timer, fd_motor_off_timer, 0, 0); - -#ifdef TRACKBUFFER -static DEFINE_TIMER(readtrack_timer, fd_readtrack_check, 0, 0); -#endif - -static DEFINE_TIMER(timeout_timer, fd_times_out, 0, 0); - -static DEFINE_TIMER(fd_timer, check_change, 0, 0); - -/* DAG: Haven't got a clue what this is? */ -int stdma_islocked(void) -{ - return 0; -}; - -/* Select the side to use. */ - -static void fd_select_side(int side) -{ - oldlatch_aupdate(LATCHA_SIDESEL, side ? 0 : LATCHA_SIDESEL); -} - - -/* Select a drive, update the FDC1772's track register - */ - -static void fd_select_drive(int drive) -{ -#ifdef DEBUG - printk("fd_select_drive:%d\n", drive); -#endif - /* Hmm - nowhere do we seem to turn the motor on - I'm going to do it here! */ - oldlatch_aupdate(LATCHA_MOTOR | LATCHA_INUSE, 0); - - if (drive == SelectedDrive) - return; - - oldlatch_aupdate(LATCHA_FDSELALL, 0xf - (1 << drive)); - - /* restore track register to saved value */ - FDC1772_WRITE(FDC1772REG_TRACK, unit[drive].track); - udelay(25); - - SelectedDrive = drive; -} - - -/* Deselect both drives. */ - -static void fd_deselect(void) -{ - unsigned long flags; - - DPRINT(("fd_deselect\n")); - - oldlatch_aupdate(LATCHA_FDSELALL | LATCHA_MOTOR | LATCHA_INUSE, 0xf | LATCHA_MOTOR | LATCHA_INUSE); - - SelectedDrive = -1; -} - - -/* This timer function deselects the drives when the FDC1772 switched the - * motor off. The deselection cannot happen earlier because the FDC1772 - * counts the index signals, which arrive only if one drive is selected. - */ - -static void fd_motor_off_timer(unsigned long dummy) -{ - unsigned long flags; - unsigned char status; - int delay; - - del_timer(&motor_off_timer); - - if (SelectedDrive < 0) - /* no drive selected, needn't deselect anyone */ - return; - - save_flags(flags); - cli(); - - if (fdc_busy) /* was stdma_islocked */ - goto retry; - - status = FDC1772_READ(FDC1772REG_STATUS); - - if (!(status & 0x80)) { - /* - * motor already turned off by FDC1772 -> deselect drives - * In actual fact its this deselection which turns the motor - * off on the Arc, since the motor control is actually on - * Latch A - */ - DPRINT(("fdc1772: deselecting in fd_motor_off_timer\n")); - fd_deselect(); - MotorOn = 0; - restore_flags(flags); - return; - } - /* not yet off, try again */ - -retry: - restore_flags(flags); - /* Test again later; if tested too often, it seems there is no disk - * in the drive and the FDC1772 will leave the motor on forever (or, - * at least until a disk is inserted). So we'll test only twice - * per second from then on... - */ - delay = (MotorOffTrys < FD_MOTOR_OFF_MAXTRY) ? - (++MotorOffTrys, HZ / 20) : HZ / 2; - START_MOTOR_OFF_TIMER(delay); -} - - -/* This function is repeatedly called to detect disk changes (as good - * as possible) and keep track of the current state of the write protection. - */ - -static void check_change(unsigned long dummy) -{ - static int drive = 0; - - unsigned long flags; - int stat; - - if (fdc_busy) - return; /* Don't start poking about if the fdc is busy */ - - return; /* let's just forget it for the mo DAG */ - - if (++drive > 1 || !unit[drive].connected) - drive = 0; - - save_flags(flags); - cli(); - - if (!stdma_islocked()) { - stat = !!(FDC1772_READ(FDC1772REG_STATUS) & FDC1772STAT_WPROT); - - /* The idea here is that if the write protect line has changed then - the disc must have changed */ - if (stat != unit[drive].wpstat) { - DPRINT(("wpstat[%d] = %d\n", drive, stat)); - unit[drive].wpstat = stat; - set_bit(drive, &changed_floppies); - } - } - restore_flags(flags); - - START_CHECK_CHANGE_TIMER(CHECK_CHANGE_DELAY); -} - - -/* Handling of the Head Settling Flag: This flag should be set after each - * seek operation, because we don't use seeks with verify. - */ - -static inline void set_head_settle_flag(void) -{ - HeadSettleFlag = FDC1772CMDADD_E; -} - -static inline int get_head_settle_flag(void) -{ - int tmp = HeadSettleFlag; - HeadSettleFlag = 0; - return (tmp); -} - - - - -/* General Interrupt Handling */ - -static inline void copy_buffer(void *from, void *to) -{ - ulong *p1 = (ulong *) from, *p2 = (ulong *) to; - int cnt; - - for (cnt = 512 / 4; cnt; cnt--) - *p2++ = *p1++; -} - -static void (*FloppyIRQHandler) (int status) = NULL; - -static void floppy_irqconsequencehandler(void) -{ - unsigned char status; - void (*handler) (int); - - fdc1772_fdc_int_done = 0; - - handler = FloppyIRQHandler; - FloppyIRQHandler = NULL; - - if (handler) { - nop(); - status = (unsigned char) fdc1772_comendstatus; - DPRINT(("FDC1772 irq, status = %02x handler = %08lx\n", (unsigned int) status, (unsigned long) handler)); - handler(status); - } else { - DPRINT(("FDC1772 irq, no handler status=%02x\n", fdc1772_comendstatus)); - } - DPRINT(("FDC1772 irq: end of floppy_irq\n")); -} - - -/* Error handling: If some error happened, retry some times, then - * recalibrate, then try again, and fail after MAX_ERRORS. - */ - -static void fd_error(void) -{ - printk("FDC1772: fd_error\n"); - /*panic("fd1772: fd_error"); *//* DAG tmp */ - if (!CURRENT) - return; - CURRENT->errors++; - if (CURRENT->errors >= MAX_ERRORS) { - printk("fd%d: too many errors.\n", SelectedDrive); - end_request(CURRENT, 0); - } else if (CURRENT->errors == RECALIBRATE_ERRORS) { - printk("fd%d: recalibrating\n", SelectedDrive); - if (SelectedDrive != -1) - unit[SelectedDrive].track = -1; - } - redo_fd_request(); -} - - - -#define SET_IRQ_HANDLER(proc) do { FloppyIRQHandler = (proc); } while(0) - - -/* do_fd_action() is the general procedure for a fd request: All - * required parameter settings (drive select, side select, track - * position) are checked and set if needed. For each of these - * parameters and the actual reading or writing exist two functions: - * one that starts the setting (or skips it if possible) and one - * callback for the "done" interrupt. Each done func calls the next - * set function to propagate the request down to fd_rwsec_done(). - */ - -static void do_fd_action(int drive) -{ - struct request *req; - DPRINT(("do_fd_action unit[drive].track=%d\n", unit[drive].track)); - -#ifdef TRACKBUFFER -repeat: - - if (IS_BUFFERED( drive, ReqSide, ReqTrack )) { - req = CURRENT; - if (ReqCmd == READ) { - copy_buffer( SECTOR_BUFFER(ReqSector), ReqData ); - if (++ReqCnt < req->current_nr_sectors) { - /* read next sector */ - setup_req_params( drive ); - goto repeat; - } else { - /* all sectors finished */ - req->nr_sectors -= req->current_nr_sectors; - req->sector += req->current_nr_sectors; - end_request(req, 1); - redo_fd_request(); - return; - } - } else { - /* cmd == WRITE, pay attention to track buffer - * consistency! */ - copy_buffer( ReqData, SECTOR_BUFFER(ReqSector) ); - } - } -#endif - - if (SelectedDrive != drive) { - /*unit[drive].track = -1; DAG */ - fd_select_drive(drive); - }; - - - if (unit[drive].track == -1) - fd_calibrate(); - else if (unit[drive].track != ReqTrack << unit[drive].disktype->stretch) - fd_seek(); - else - fd_rwsec(); -} - - -/* Seek to track 0 if the current track is unknown */ - -static void fd_calibrate(void) -{ - DPRINT(("fd_calibrate\n")); - if (unit[SelectedDrive].track >= 0) { - fd_calibrate_done(0); - return; - } - DPRINT(("fd_calibrate (after track compare)\n")); - SET_IRQ_HANDLER(fd_calibrate_done); - /* we can't verify, since the speed may be incorrect */ - FDC1772_WRITE(FDC1772REG_CMD, FDC1772CMD_RESTORE | unit[SelectedDrive].steprate); - - NeedSeek = 1; - MotorOn = 1; - START_TIMEOUT(); - /* wait for IRQ */ -} - - -static void fd_calibrate_done(int status) -{ - DPRINT(("fd_calibrate_done()\n")); - STOP_TIMEOUT(); - - /* set the correct speed now */ - if (status & FDC1772STAT_RECNF) { - printk("fd%d: restore failed\n", SelectedDrive); - fd_error(); - } else { - unit[SelectedDrive].track = 0; - fd_seek(); - } -} - - -/* Seek the drive to the requested track. The drive must have been - * calibrated at some point before this. - */ - -static void fd_seek(void) -{ - unsigned long flags; - DPRINT(("fd_seek() to track %d (unit[SelectedDrive].track=%d)\n", ReqTrack, - unit[SelectedDrive].track)); - if (unit[SelectedDrive].track == ReqTrack << - unit[SelectedDrive].disktype->stretch) { - fd_seek_done(0); - return; - } - FDC1772_WRITE(FDC1772REG_DATA, ReqTrack << - unit[SelectedDrive].disktype->stretch); - udelay(25); - save_flags(flags); - clf(); - SET_IRQ_HANDLER(fd_seek_done); - FDC1772_WRITE(FDC1772REG_CMD, FDC1772CMD_SEEK | unit[SelectedDrive].steprate | - /* DAG */ - (MotorOn?FDC1772CMDADD_H:0)); - - restore_flags(flags); - MotorOn = 1; - set_head_settle_flag(); - START_TIMEOUT(); - /* wait for IRQ */ -} - - -static void fd_seek_done(int status) -{ - DPRINT(("fd_seek_done()\n")); - STOP_TIMEOUT(); - - /* set the correct speed */ - if (status & FDC1772STAT_RECNF) { - printk("fd%d: seek error (to track %d)\n", - SelectedDrive, ReqTrack); - /* we don't know exactly which track we are on now! */ - unit[SelectedDrive].track = -1; - fd_error(); - } else { - unit[SelectedDrive].track = ReqTrack << - unit[SelectedDrive].disktype->stretch; - NeedSeek = 0; - fd_rwsec(); - } -} - - -/* This does the actual reading/writing after positioning the head - * over the correct track. - */ - -#ifdef TRACKBUFFER -static int MultReadInProgress = 0; -#endif - - -static void fd_rwsec(void) -{ - unsigned long paddr, flags; - unsigned int rwflag, old_motoron; - unsigned int track; - - DPRINT(("fd_rwsec(), Sec=%d, Access=%c\n", ReqSector, ReqCmd == WRITE ? 'w' : 'r')); - if (ReqCmd == WRITE) { - /*cache_push( (unsigned long)ReqData, 512 ); */ - paddr = (unsigned long) ReqData; - rwflag = 0x100; - } else { - paddr = (unsigned long) PhysDMABuffer; -#ifdef TRACKBUFFER - if (read_track) - paddr = (unsigned long)PhysTrackBuffer; -#endif - rwflag = 0; - } - - DPRINT(("fd_rwsec() before sidesel rwflag=%d sec=%d trk=%d\n", rwflag, - ReqSector, FDC1772_READ(FDC1772REG_TRACK))); - fd_select_side(ReqSide); - - /*DPRINT(("fd_rwsec() before start sector \n")); */ - /* Start sector of this operation */ -#ifdef TRACKBUFFER - FDC1772_WRITE( FDC1772REG_SECTOR, !read_track ? ReqSector : 1 ); -#else - FDC1772_WRITE( FDC1772REG_SECTOR, ReqSector ); -#endif - - /* Cheat for track if stretch != 0 */ - if (unit[SelectedDrive].disktype->stretch) { - track = FDC1772_READ(FDC1772REG_TRACK); - FDC1772_WRITE(FDC1772REG_TRACK, track >> - unit[SelectedDrive].disktype->stretch); - } - udelay(25); - - DPRINT(("fd_rwsec() before setup DMA \n")); - /* Setup DMA - Heavily modified by DAG */ - save_flags(flags); - clf(); - disable_dma(FLOPPY_DMA); - set_dma_mode(FLOPPY_DMA, rwflag ? DMA_MODE_WRITE : DMA_MODE_READ); - set_dma_addr(FLOPPY_DMA, (long) paddr); /* DAG - changed from Atari specific */ -#ifdef TRACKBUFFER - set_dma_count(FLOPPY_DMA,(!read_track ? 1 : unit[SelectedDrive].disktype->spt)*512); -#else - set_dma_count(FLOPPY_DMA, 512); /* Block/sector size - going to have to change */ -#endif - SET_IRQ_HANDLER(fd_rwsec_done); - /* Turn on dma int */ - enable_dma(FLOPPY_DMA); - /* Now give it something to do */ - FDC1772_WRITE(FDC1772REG_CMD, (rwflag ? (FDC1772CMD_WRSEC | FDC1772CMDADD_P) : -#ifdef TRACKBUFFER - (FDC1772CMD_RDSEC | (read_track ? FDC1772CMDADD_M : 0) | - /* Hmm - the idea here is to stop the FDC spinning the disc - up when we know that we already still have it spinning */ - (MotorOn?FDC1772CMDADD_H:0)) -#else - FDC1772CMD_RDSEC -#endif - )); - - restore_flags(flags); - DPRINT(("fd_rwsec() after DMA setup flags=0x%08x\n", flags)); - /*sti(); *//* DAG - Hmm */ - /* Hmm - should do something DAG */ - old_motoron = MotorOn; - MotorOn = 1; - NeedSeek = 1; - - /* wait for interrupt */ - -#ifdef TRACKBUFFER - if (read_track) { - /* - * If reading a whole track, wait about one disk rotation and - * then check if all sectors are read. The FDC will even - * search for the first non-existant sector and need 1 sec to - * recognise that it isn't present :-( - */ - /* 1 rot. + 5 rot.s if motor was off */ - mod_timer(&readtrack_timer, jiffies + HZ/5 + (old_motoron ? 0 : HZ)); - DPRINT(("Setting readtrack_timer to %d @ %d\n", - readtrack_timer.expires,jiffies)); - MultReadInProgress = 1; - } -#endif - - /*DPRINT(("fd_rwsec() before START_TIMEOUT \n")); */ - START_TIMEOUT(); - /*DPRINT(("fd_rwsec() after START_TIMEOUT \n")); */ -} - - -#ifdef TRACKBUFFER - -static void fd_readtrack_check(unsigned long dummy) -{ - unsigned long flags, addr; - extern unsigned char *fdc1772_dataaddr; - - DPRINT(("fd_readtrack_check @ %d\n",jiffies)); - - save_flags(flags); - clf(); - - del_timer( &readtrack_timer ); - - if (!MultReadInProgress) { - /* This prevents a race condition that could arise if the - * interrupt is triggered while the calling of this timer - * callback function takes place. The IRQ function then has - * already cleared 'MultReadInProgress' when control flow - * gets here. - */ - restore_flags(flags); - return; - } - - /* get the current DMA address */ - addr=(unsigned long)fdc1772_dataaddr; /* DAG - ? */ - DPRINT(("fd_readtrack_check: addr=%x PhysTrackBuffer=%x\n",addr,PhysTrackBuffer)); - - if (addr >= (unsigned int)PhysTrackBuffer + unit[SelectedDrive].disktype->spt*512) { - /* already read enough data, force an FDC interrupt to stop - * the read operation - */ - SET_IRQ_HANDLER( NULL ); - restore_flags(flags); - DPRINT(("fd_readtrack_check(): done\n")); - FDC1772_WRITE( FDC1772REG_CMD, FDC1772CMD_FORCI ); - udelay(25); - - /* No error until now -- the FDC would have interrupted - * otherwise! - */ - fd_rwsec_done( 0 ); - } else { - /* not yet finished, wait another tenth rotation */ - restore_flags(flags); - DPRINT(("fd_readtrack_check(): not yet finished\n")); - readtrack_timer.expires = jiffies + HZ/5/10; - add_timer( &readtrack_timer ); - } -} - -#endif - -static void fd_rwsec_done(int status) -{ - unsigned int track; - - DPRINT(("fd_rwsec_done() status=%d @ %d\n", status,jiffies)); - -#ifdef TRACKBUFFER - if (read_track && !MultReadInProgress) - return; - - MultReadInProgress = 0; - - STOP_TIMEOUT(); - - if (read_track) - del_timer( &readtrack_timer ); -#endif - - - /* Correct the track if stretch != 0 */ - if (unit[SelectedDrive].disktype->stretch) { - track = FDC1772_READ(FDC1772REG_TRACK); - FDC1772_WRITE(FDC1772REG_TRACK, track << - unit[SelectedDrive].disktype->stretch); - } - if (ReqCmd == WRITE && (status & FDC1772STAT_WPROT)) { - printk("fd%d: is write protected\n", SelectedDrive); - goto err_end; - } - if ((status & FDC1772STAT_RECNF) -#ifdef TRACKBUFFER - /* RECNF is no error after a multiple read when the FDC - * searched for a non-existant sector! - */ - && !(read_track && - FDC1772_READ(FDC1772REG_SECTOR) > unit[SelectedDrive].disktype->spt) -#endif - ) { - if (Probing) { - if (unit[SelectedDrive].disktype > disk_type) { - /* try another disk type */ - unit[SelectedDrive].disktype--; - set_capacity(disks[SelectedDrive], - unit[SelectedDrive].disktype->blocks); - } else - Probing = 0; - } else { - /* record not found, but not probing. Maybe stretch wrong ? Restart probing */ - if (unit[SelectedDrive].autoprobe) { - unit[SelectedDrive].disktype = disk_type + NUM_DISK_TYPES - 1; - set_capacity(disks[SelectedDrive], - unit[SelectedDrive].disktype->blocks); - Probing = 1; - } - } - if (Probing) { - setup_req_params(SelectedDrive); -#ifdef TRACKBUFFER - BufferDrive = -1; -#endif - do_fd_action(SelectedDrive); - return; - } - printk("fd%d: sector %d not found (side %d, track %d)\n", - SelectedDrive, FDC1772_READ(FDC1772REG_SECTOR), ReqSide, ReqTrack); - goto err_end; - } - if (status & FDC1772STAT_CRC) { - printk("fd%d: CRC error (side %d, track %d, sector %d)\n", - SelectedDrive, ReqSide, ReqTrack, FDC1772_READ(FDC1772REG_SECTOR)); - goto err_end; - } - if (status & FDC1772STAT_LOST) { - printk("fd%d: lost data (side %d, track %d, sector %d)\n", - SelectedDrive, ReqSide, ReqTrack, FDC1772_READ(FDC1772REG_SECTOR)); - goto err_end; - } - Probing = 0; - - if (ReqCmd == READ) { -#ifdef TRACKBUFFER - if (!read_track) { - /*cache_clear (PhysDMABuffer, 512);*/ - copy_buffer (DMABuffer, ReqData); - } else { - /*cache_clear (PhysTrackBuffer, FD1772_MAX_SECTORS * 512);*/ - BufferDrive = SelectedDrive; - BufferSide = ReqSide; - BufferTrack = ReqTrack; - copy_buffer (SECTOR_BUFFER (ReqSector), ReqData); - } -#else - /*cache_clear( PhysDMABuffer, 512 ); */ - copy_buffer(DMABuffer, ReqData); -#endif - } - if (++ReqCnt < CURRENT->current_nr_sectors) { - /* read next sector */ - setup_req_params(SelectedDrive); - do_fd_action(SelectedDrive); - } else { - /* all sectors finished */ - CURRENT->nr_sectors -= CURRENT->current_nr_sectors; - CURRENT->sector += CURRENT->current_nr_sectors; - end_request(CURRENT, 1); - redo_fd_request(); - } - return; - -err_end: -#ifdef TRACKBUFFER - BufferDrive = -1; -#endif - - fd_error(); -} - - -static void fd_times_out(unsigned long dummy) -{ - SET_IRQ_HANDLER(NULL); - /* If the timeout occurred while the readtrack_check timer was - * active, we need to cancel it, else bad things will happen */ - del_timer( &readtrack_timer ); - FDC1772_WRITE(FDC1772REG_CMD, FDC1772CMD_FORCI); - udelay(25); - - printk("floppy timeout\n"); - STOP_TIMEOUT(); /* hmm - should we do this ? */ - fd_error(); -} - - -/* The (noop) seek operation here is needed to make the WP bit in the - * FDC1772 status register accessible for check_change. If the last disk - * operation would have been a RDSEC, this bit would always read as 0 - * no matter what :-( To save time, the seek goes to the track we're - * already on. - */ - -static void finish_fdc(void) -{ - /* DAG - just try without this dummy seek! */ - finish_fdc_done(0); - return; - - if (!NeedSeek) { - finish_fdc_done(0); - } else { - DPRINT(("finish_fdc: dummy seek started\n")); - FDC1772_WRITE(FDC1772REG_DATA, unit[SelectedDrive].track); - SET_IRQ_HANDLER(finish_fdc_done); - FDC1772_WRITE(FDC1772REG_CMD, FDC1772CMD_SEEK); - MotorOn = 1; - START_TIMEOUT(); - /* we must wait for the IRQ here, because the ST-DMA is - * released immediately afterwards and the interrupt may be - * delivered to the wrong driver. - */ - } -} - - -static void finish_fdc_done(int dummy) -{ - unsigned long flags; - - DPRINT(("finish_fdc_done entered\n")); - STOP_TIMEOUT(); - NeedSeek = 0; - - if (timer_pending(&fd_timer) && - time_after(jiffies + 5, fd_timer.expires)) - /* If the check for a disk change is done too early after this - * last seek command, the WP bit still reads wrong :-(( - */ - mod_timer(&fd_timer, jiffies + 5); - else { - /* START_CHECK_CHANGE_TIMER( CHECK_CHANGE_DELAY ); */ - }; - del_timer(&motor_off_timer); - START_MOTOR_OFF_TIMER(FD_MOTOR_OFF_DELAY); - - save_flags(flags); - cli(); - /* stdma_release(); - not sure if I should do something DAG */ - fdc_busy = 0; - wake_up(&fdc_wait); - restore_flags(flags); - - DPRINT(("finish_fdc() finished\n")); -} - - -/* Prevent "aliased" accesses. */ -static int fd_ref[4]; -static int fd_device[4]; - -/* dummy for blk.h */ -static void floppy_off(unsigned int nr) -{ -} - - -/* On the old arcs write protect depends on the particular model - of machine. On the A310, R140, and A440 there is a disc changed - detect, however on the A4x0/1 range there is not. There - is nothing to tell you which machine your on. - At the moment I'm just marking changed always. I've - left the Atari's 'change on write protect change' code in this - part (but nothing sets it). - RiscOS apparently checks the disc serial number etc. to detect changes - - but if it sees a disc change line go high (?) it flips to using - it. Well maybe I'll add that in the future (!?) -*/ -static int check_floppy_change(struct gendisk *disk) -{ - struct archy_floppy_struct *p = disk->private_data; - unsigned int drive = p - unit; - - if (test_bit(drive, &fake_change)) { - /* simulated change (e.g. after formatting) */ - return 1; - } - if (test_bit(drive, &changed_floppies)) { - /* surely changed (the WP signal changed at least once) */ - return 1; - } - if (p->wpstat) { - /* WP is on -> could be changed: to be sure, buffers should be - * invalidated... - */ - return 1; - } - return 1; /* DAG - was 0 */ -} - -static int floppy_revalidate(struct gendisk *disk) -{ - struct archy_floppy_struct *p = disk->private_data; - unsigned int drive = p - unit; - - if (test_bit(drive, &changed_floppies) || test_bit(drive, &fake_change) - || unit[drive].disktype == 0) { -#ifdef TRACKBUFFER - BufferDrive = -1; -#endif - clear_bit(drive, &fake_change); - clear_bit(drive, &changed_floppies); - p->disktype = 0; - } - return 0; -} - -/* This sets up the global variables describing the current request. */ - -static void setup_req_params(int drive) -{ - int block = ReqBlock + ReqCnt; - - ReqTrack = block / unit[drive].disktype->spt; - ReqSector = block - ReqTrack * unit[drive].disktype->spt + 1; - ReqSide = ReqTrack & 1; - ReqTrack >>= 1; - ReqData = ReqBuffer + 512 * ReqCnt; - -#ifdef TRACKBUFFER - read_track = (ReqCmd == READ && CURRENT->errors == 0); -#endif - - DPRINT(("Request params: Si=%d Tr=%d Se=%d Data=%08lx\n", ReqSide, - ReqTrack, ReqSector, (unsigned long) ReqData)); -} - - -static void redo_fd_request(void) -{ - int drive, type; - struct archy_floppy_struct *floppy; - - DPRINT(("redo_fd_request: CURRENT=%p dev=%s CURRENT->sector=%ld\n", - CURRENT, CURRENT ? CURRENT->rq_disk->disk_name : "", - CURRENT ? CURRENT->sector : 0)); - -repeat: - - if (!CURRENT) - goto the_end; - - floppy = CURRENT->rq_disk->private_data; - drive = floppy - unit; - type = fd_device[drive]; - - if (!floppy->connected) { - /* drive not connected */ - printk("Unknown Device: fd%d\n", drive); - end_request(CURRENT, 0); - goto repeat; - } - if (type == 0) { - if (!floppy->disktype) { - Probing = 1; - floppy->disktype = disk_type + NUM_DISK_TYPES - 1; - set_capacity(disks[drive], floppy->disktype->blocks); - floppy->autoprobe = 1; - } - } else { - /* user supplied disk type */ - --type; - if (type >= NUM_DISK_TYPES) { - printk("fd%d: invalid disk format", drive); - end_request(CURRENT, 0); - goto repeat; - } - floppy->disktype = &disk_type[type]; - set_capacity(disks[drive], floppy->disktype->blocks); - floppy->autoprobe = 0; - } - - if (CURRENT->sector + 1 > floppy->disktype->blocks) { - end_request(CURRENT, 0); - goto repeat; - } - /* stop deselect timer */ - del_timer(&motor_off_timer); - - ReqCnt = 0; - ReqCmd = rq_data_dir(CURRENT); - ReqBlock = CURRENT->sector; - ReqBuffer = CURRENT->buffer; - setup_req_params(drive); - do_fd_action(drive); - - return; - -the_end: - finish_fdc(); -} - -static void fd1772_checkint(void) -{ - extern int fdc1772_bytestogo; - - /*printk("fd1772_checkint %d\n",fdc1772_fdc_int_done);*/ - if (fdc1772_fdc_int_done) - floppy_irqconsequencehandler(); - if ((MultReadInProgress) && (fdc1772_bytestogo==0)) fd_readtrack_check(0); - if (fdc_busy) { - schedule_work(&fd1772_tq); - } -} - -static void do_fd_request(struct request_queue* q) -{ - unsigned long flags; - - DPRINT(("do_fd_request for pid %d\n", current->pid)); - if (fdc_busy) return; - save_flags(flags); - cli(); - wait_event(fdc_wait, !fdc_busy); - fdc_busy = 1; - ENABLE_IRQ(); - restore_flags(flags); - - fdc1772_fdc_int_done = 0; - - redo_fd_request(); - - schedule_work(&fd1772_tq); -} - - -static int invalidate_drive(struct block_device *bdev) -{ - struct archy_floppy_struct *p = bdev->bd_disk->private_data; - /* invalidate the buffer track to force a reread */ -#ifdef TRACKBUFFER - BufferDrive = -1; -#endif - - set_bit(p - unit, &fake_change); - return 0; -} - -static int fd_ioctl(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long param) -{ - struct block_device *bdev = inode->i_bdev; - - switch (cmd) { - case FDFMTEND: - case FDFLUSH: - invalidate_drive(bdev); - check_disk_change(bdev); - case FDFMTBEG: - return 0; - default: - return -EINVAL; - } -} - - -/* Initialize the 'unit' variable for drive 'drive' */ - -static void fd_probe(int drive) -{ - unit[drive].connected = 0; - unit[drive].disktype = NULL; - - if (!fd_test_drive_present(drive)) - return; - - unit[drive].connected = 1; - unit[drive].track = -1; /* If we put the auto detect back in this can go to 0 */ - unit[drive].steprate = FDC1772STEP_6; - MotorOn = 1; /* from probe restore operation! */ -} - - -/* This function tests the physical presence of a floppy drive (not - * whether a disk is inserted). This is done by issuing a restore - * command, waiting max. 2 seconds (that should be enough to move the - * head across the whole disk) and looking at the state of the "TR00" - * signal. This should now be raised if there is a drive connected - * (and there is no hardware failure :-) Otherwise, the drive is - * declared absent. - */ - -static int fd_test_drive_present(int drive) -{ - unsigned long timeout; - unsigned char status; - int ok; - - printk("fd_test_drive_present %d\n", drive); - if (drive > 1) - return (0); - return (1); /* Simple hack for the moment - the autodetect doesn't seem to work on arc */ - fd_select_drive(drive); - - /* disable interrupt temporarily */ - DISABLE_IRQ(); - FDC1772_WRITE(FDC1772REG_TRACK, 0x00); /* was ff00 why? */ - FDC1772_WRITE(FDC1772REG_CMD, FDC1772CMD_RESTORE | FDC1772CMDADD_H | FDC1772STEP_6); - - /*printk("fd_test_drive_present: Going into timeout loop\n"); */ - for (ok = 0, timeout = jiffies + 2 * HZ + HZ / 2; time_before(jiffies, timeout);) { - /* What does this piece of atariism do? - query for an interrupt? */ - /* if (!(mfp.par_dt_reg & 0x20)) - break; */ - /* Well this is my nearest guess - quit when we get an FDC interrupt */ - if (ioc_readb(IOC_FIQSTAT) & 2) - break; - } - - /*printk("fd_test_drive_present: Coming out of timeout loop\n"); */ - status = FDC1772_READ(FDC1772REG_STATUS); - ok = (status & FDC1772STAT_TR00) != 0; - - /*printk("fd_test_drive_present: ok=%d\n",ok); */ - /* force interrupt to abort restore operation (FDC1772 would try - * about 50 seconds!) */ - FDC1772_WRITE(FDC1772REG_CMD, FDC1772CMD_FORCI); - udelay(500); - status = FDC1772_READ(FDC1772REG_STATUS); - udelay(20); - /*printk("fd_test_drive_present: just before OK code %d\n",ok); */ - - if (ok) { - /* dummy seek command to make WP bit accessible */ - FDC1772_WRITE(FDC1772REG_DATA, 0); - FDC1772_WRITE(FDC1772REG_CMD, FDC1772CMD_SEEK); - printk("fd_test_drive_present: just before wait for int\n"); - /* DAG: Guess means wait for interrupt */ - while (!(ioc_readb(IOC_FIQSTAT) & 2)); - printk("fd_test_drive_present: just after wait for int\n"); - status = FDC1772_READ(FDC1772REG_STATUS); - } - printk("fd_test_drive_present: just before ENABLE_IRQ\n"); - ENABLE_IRQ(); - printk("fd_test_drive_present: about to return\n"); - return (ok); -} - - -/* Look how many and which kind of drives are connected. If there are - * floppies, additionally start the disk-change and motor-off timers. - */ - -static void config_types(void) -{ - int drive, cnt = 0; - - printk("Probing floppy drive(s):\n"); - for (drive = 0; drive < FD_MAX_UNITS; drive++) { - fd_probe(drive); - if (unit[drive].connected) { - printk("fd%d\n", drive); - ++cnt; - } - } - - if (FDC1772_READ(FDC1772REG_STATUS) & FDC1772STAT_BUSY) { - /* If FDC1772 is still busy from probing, give it another FORCI - * command to abort the operation. If this isn't done, the FDC1772 - * will interrupt later and its IRQ line stays low, because - * the status register isn't read. And this will block any - * interrupts on this IRQ line :-( - */ - FDC1772_WRITE(FDC1772REG_CMD, FDC1772CMD_FORCI); - udelay(500); - FDC1772_READ(FDC1772REG_STATUS); - udelay(20); - } - if (cnt > 0) { - START_MOTOR_OFF_TIMER(FD_MOTOR_OFF_DELAY); - if (cnt == 1) - fd_select_drive(0); - /*START_CHECK_CHANGE_TIMER( CHECK_CHANGE_DELAY ); */ - } -} - -/* - * floppy_open check for aliasing (/dev/fd0 can be the same as - * /dev/PS0 etc), and disallows simultaneous access to the same - * drive with different device numbers. - */ - -static int floppy_open(struct inode *inode, struct file *filp) -{ - int drive = iminor(inode) & 3; - int type = iminor(inode) >> 2; - int old_dev = fd_device[drive]; - - if (fd_ref[drive] && old_dev != type) - return -EBUSY; - - if (fd_ref[drive] == -1 || (fd_ref[drive] && filp->f_flags & O_EXCL)) - return -EBUSY; - - if (filp->f_flags & O_EXCL) - fd_ref[drive] = -1; - else - fd_ref[drive]++; - - fd_device[drive] = type; - - if (filp->f_flags & O_NDELAY) - return 0; - - if (filp->f_mode & 3) { - check_disk_change(inode->i_bdev); - if (filp->f_mode & 2) { - if (unit[drive].wpstat) { - floppy_release(inode, filp); - return -EROFS; - } - } - } - return 0; -} - - -static int floppy_release(struct inode *inode, struct file *filp) -{ - int drive = iminor(inode) & 3; - - if (fd_ref[drive] < 0) - fd_ref[drive] = 0; - else if (!fd_ref[drive]--) { - printk("floppy_release with fd_ref == 0"); - fd_ref[drive] = 0; - } - - return 0; -} - -static struct block_device_operations floppy_fops = -{ - .open = floppy_open, - .release = floppy_release, - .ioctl = fd_ioctl, - .media_changed = check_floppy_change, - .revalidate_disk= floppy_revalidate, -}; - -static struct kobject *floppy_find(dev_t dev, int *part, void *data) -{ - int drive = *part & 3; - if ((*part >> 2) > NUM_DISK_TYPES || drive >= FD_MAX_UNITS) - return NULL; - *part = 0; - return get_disk(disks[drive]); -} - -int fd1772_init(void) -{ - static DEFINE_SPINLOCK(lock); - int i, err = -ENOMEM; - - if (!machine_is_archimedes()) - return 0; - - for (i = 0; i < FD_MAX_UNITS; i++) { - disks[i] = alloc_disk(1); - if (!disks[i]) - goto err_disk; - } - - err = register_blkdev(MAJOR_NR, "fd"); - if (err) - goto err_disk; - - err = -EBUSY; - if (request_dma(FLOPPY_DMA, "fd1772")) { - printk("Unable to grab DMA%d for the floppy (1772) driver\n", FLOPPY_DMA); - goto err_blkdev; - }; - - if (request_dma(FIQ_FD1772, "fd1772 end")) { - printk("Unable to grab DMA%d for the floppy (1772) driver\n", FIQ_FD1772); - goto err_dma1; - }; - - /* initialize variables */ - SelectedDrive = -1; -#ifdef TRACKBUFFER - BufferDrive = BufferSide = BufferTrack = -1; - /* Atari uses 512 - I want to eventually cope with 1K sectors */ - DMABuffer = kmalloc((FD1772_MAX_SECTORS+1)*512,GFP_KERNEL); - TrackBuffer = DMABuffer + 512; -#else - /* Allocate memory for the DMAbuffer - on the Atari this takes it - out of some special memory... */ - DMABuffer = kmalloc(2048); /* Copes with pretty large sectors */ -#endif - err = -ENOMEM; - if (!DMAbuffer) - goto err_dma2; - - enable_dma(FIQ_FD1772); /* This inserts a call to our command end routine */ - - floppy_queue = blk_init_queue(do_fd_request, &lock); - if (!floppy_queue) - goto err_queue; - - for (i = 0; i < FD_MAX_UNITS; i++) { - unit[i].track = -1; - disks[i]->major = MAJOR_NR; - disks[i]->first_minor = 0; - disks[i]->fops = &floppy_fops; - sprintf(disks[i]->disk_name, "fd%d", i); - disks[i]->private_data = &unit[i]; - disks[i]->queue = floppy_queue; - set_capacity(disks[i], MAX_DISK_SIZE * 2); - } - blk_register_region(MKDEV(MAJOR_NR, 0), 256, THIS_MODULE, - floppy_find, NULL, NULL); - - for (i = 0; i < FD_MAX_UNITS; i++) - add_disk(disks[i]); - - config_types(); - - return 0; - - err_queue: - kfree(DMAbuffer); - err_dma2: - free_dma(FIQ_FD1772); - - err_dma1: - free_dma(FLOPPY_DMA); - - err_blkdev: - unregister_blkdev(MAJOR_NR, "fd"); - - err_disk: - while (i--) - put_disk(disks[i]); - return err; -} diff --git a/trunk/drivers/acorn/block/fd1772dma.S b/trunk/drivers/acorn/block/fd1772dma.S deleted file mode 100644 index 7964435443ec..000000000000 --- a/trunk/drivers/acorn/block/fd1772dma.S +++ /dev/null @@ -1,100 +0,0 @@ -#include - -@ Code for DMA with the 1772 fdc -.text - - - .global fdc1772_dataaddr -fdc1772_fiqdata: -@ Number of bytes left to DMA - .global fdc1772_bytestogo -fdc1772_bytestogo: - .word 0 -@ Place to put/get data from in DMA - .global fdc1772_dataaddr -fdc1772_dataaddr: - .word 0 - - .global fdc1772_fdc_int_done -fdc1772_fdc_int_done: - .word 0 - .global fdc1772_comendstatus -fdc1772_comendstatus: - .word 0 - -@ We hang this off DMA channel 1 - .global fdc1772_comendhandler -fdc1772_comendhandler: - mov r8,#IOC_BASE - ldrb r9,[r8,#0x34] @ IOC FIQ status - tst r9,#2 - subeqs pc,r14,#4 @ should I leave a space here - orr r9,r8,#0x10000 @ FDC base - adr r8,fdc1772_fdc_int_done - ldrb r10,[r9,#0] @ FDC status - mov r9,#1 @ Got a FIQ flag - stmia r8,{r9,r10} - subs pc,r14,#4 - - - .global fdc1772_dma_read -fdc1772_dma_read: - mov r8,#IOC_BASE - ldrb r9,[r8,#0x34] @ IOC FIQ status - tst r9,#1 - beq fdc1772_dma_read_notours - orr r8,r8,#0x10000 @ FDC base - ldrb r10,[r8,#0xc] @ Read from FDC data reg (also clears interrupt) - ldmia r11,{r8,r9} - subs r8,r8,#1 @ One less byte to go - @ If there was somewhere for this data to go then store it and update pointers - strplb r10,[r9],#1 @ Store the data and increment the pointer - stmplia r11,{r8,r9} @ Update count/pointers - @ Handle any other interrupts if there are any -fdc1772_dma_read_notours: - @ Cant branch because this code has been copied down to the FIQ vector - ldr pc,[pc,#-4] - .word fdc1772_comendhandler - .global fdc1772_dma_read_end -fdc1772_dma_read_end: - - .global fdc1772_dma_write -fdc1772_dma_write: - mov r8,#IOC_BASE - ldrb r9,[r8,#0x34] @ IOC FIQ status - tst r9,#1 - beq fdc1772_dma_write_notours - orr r8,r8,#0x10000 @ FDC base - ldmia r11,{r9,r10} - subs r9,r9,#1 @ One less byte to go - @ If there really is some data then get it, store it and update count - ldrplb r12,[r10],#1 - strplb r12,[r8,#0xc] @ write it to FDC data reg - stmplia r11,{r9,r10} @ Update count and pointer - should clear interrupt - @ Handle any other interrupts -fdc1772_dma_write_notours: - @ Cant branch because this code has been copied down to the FIQ vector - ldr pc,[pc,#-4] - .word fdc1772_comendhandler - - .global fdc1772_dma_write_end -fdc1772_dma_write_end: - - -@ Setup the FIQ R11 to point to the data and store the count, address -@ for this dma -@ R0=count -@ R1=address - .global fdc1772_setupdma -fdc1772_setupdma: - @ The big job is flipping in and out of FIQ mode - adr r2,fdc1772_fiqdata @ This is what we really came here for - stmia r2,{r0,r1} - mov r3, pc - teqp pc,#0x0c000001 @ Disable FIQs, IRQs and switch to FIQ mode - mov r0,r0 @ NOP - mov r11,r2 - teqp r3,#0 @ Normal mode - mov r0,r0 @ NOP - mov pc,r14 - diff --git a/trunk/drivers/acorn/block/mfm.S b/trunk/drivers/acorn/block/mfm.S deleted file mode 100644 index c90cbd41ce21..000000000000 --- a/trunk/drivers/acorn/block/mfm.S +++ /dev/null @@ -1,162 +0,0 @@ -@ Read/Write DMA code for the ST506/MFM hard drive controllers on the A400 Acorn Archimedes -@ motherboard and on ST506 expansion podules. -@ (c) David Alan Gilbert (linux@treblig.org) 1996-1999 - -#include - -hdc63463_irqdata: -@ Controller base address - .global hdc63463_baseaddress -hdc63463_baseaddress: - .word 0 - - .global hdc63463_irqpolladdress -hdc63463_irqpolladdress: - .word 0 - - .global hdc63463_irqpollmask -hdc63463_irqpollmask: - .word 0 - -@ where to read/write data from the kernel data space - .global hdc63463_dataptr -hdc63463_dataptr: - .word 0 - -@ Number of bytes left to transfer - .global hdc63463_dataleft -hdc63463_dataleft: - .word 0 - -@ ------------------------------------------------------------------------- -@ hdc63463_writedma: DMA from host to controller -@ internal reg usage: r0=hdc base address, r1=irq poll address, r2=poll mask -@ r3=data ptr, r4=data left, r5,r6=temporary - .global hdc63463_writedma -hdc63463_writedma: - stmfd sp!,{r4-r7} - adr r5,hdc63463_irqdata - ldmia r5,{r0,r1,r2,r3,r4} - -writedma_again: - - @ test number of remaining bytes to transfer - cmp r4,#0 - beq writedma_end - bmi writedma_end - - @ Check the hdc is interrupting - ldrb r5,[r1,#0] - tst r5,r2 - beq writedma_end - - @ Transfer a block of upto 256 bytes - cmp r4,#256 - movlt r7,r4 - movge r7,#256 - - @ Check the hdc is still busy and command has not ended and no errors - ldr r5,[r0,#32] @ Status reg - 16 bit - its the top few bits which are status - @ think we should continue DMA until it drops busy - perhaps this was - @ the main problem with corrected errors causing a hang - @tst r5,#0x3c00 @ Test for things which should be off - @bne writedma_end - and r5,r5,#0x8000 @ This is test for things which should be on: Busy - cmp r5,#0x8000 - bne writedma_end - - @ Bytes remaining at end - sub r4,r4,r7 - - @ HDC Write register location - add r0,r0,#32+8 - -writedma_loop: - @ OK - pretty sure we should be doing this - - ldr r5,[r3],#4 @ Get a word to be written - @ get bottom half to be sent first - mov r6,r5,lsl#16 @ Separate the first 2 bytes - orr r2,r6,r6,lsr #16 @ Duplicate them in the bottom half of the word - @ now the top half - mov r6,r5,lsr#16 @ Get 2nd 2 bytes - orr r6,r6,r6,lsl#16 @ Duplicate - @str r6,[r0] @ to hdc - stmia r0,{r2,r6} - subs r7,r7,#4 @ Dec. number of bytes left - bne writedma_loop - - @ If we were too slow we had better go through again - DAG - took out with new interrupt routine - @ sub r0,r0,#32+8 - @ adr r2,hdc63463_irqdata - @ ldr r2,[r2,#8] - @ b writedma_again - -writedma_end: - adr r5,hdc63463_irqdata+12 - stmia r5,{r3,r4} - ldmfd sp!,{r4-r7} - RETINSTR(mov,pc,lr) - -@ ------------------------------------------------------------------------- -@ hdc63463_readdma: DMA from controller to host -@ internal reg usage: r0=hdc base address, r1=irq poll address, r2=poll mask -@ r3=data ptr, r4=data left, r5,r6=temporary - .global hdc63463_readdma -hdc63463_readdma: - stmfd sp!,{r4-r7} - adr r5,hdc63463_irqdata - ldmia r5,{r0,r1,r2,r3,r4} - -readdma_again: - @ test number of remaining bytes to transfer - cmp r4,#0 - beq readdma_end - bmi readdma_end - - @ Check the hdc is interrupting - ldrb r5,[r1,#0] - tst r5,r2 - beq readdma_end - - @ Check the hdc is still busy and command has not ended and no errors - ldr r5,[r0,#32] @ Status reg - 16 bit - its the top few bits which are status - @ think we should continue DMA until it drops busy - perhaps this was - @ the main problem with corrected errors causing a hang - @tst r5,#0x3c00 @ Test for things which should be off - @bne readdma_end - and r5,r5,#0x8000 @ This is test for things which should be on: Busy - cmp r5,#0x8000 - bne readdma_end - - @ Transfer a block of upto 256 bytes - cmp r4,#256 - movlt r7,r4 - movge r7,#256 - - @ Bytes remaining at end - sub r4,r4,r7 - - @ Set a pointer to the data register in the HDC - add r0,r0,#8 -readdma_loop: - @ OK - pretty sure we should be doing this - ldmia r0,{r5,r6} - mov r5,r5,lsl#16 - mov r6,r6,lsl#16 - orr r6,r6,r5,lsr #16 - str r6,[r3],#4 - subs r7,r7,#4 @ Decrement bytes to go - bne readdma_loop - - @ Try reading multiple blocks - if this was fast enough then I do not think - @ this should help - NO taken out DAG - new interrupt handler has - @ non-consecutive memory blocks - @ sub r0,r0,#8 - @ b readdma_again - -readdma_end: - adr r5,hdc63463_irqdata+12 - stmia r5,{r3,r4} - ldmfd sp!,{r4-r7} - RETINSTR(mov,pc,lr) diff --git a/trunk/drivers/acorn/block/mfmhd.c b/trunk/drivers/acorn/block/mfmhd.c deleted file mode 100644 index 74058db674db..000000000000 --- a/trunk/drivers/acorn/block/mfmhd.c +++ /dev/null @@ -1,1385 +0,0 @@ -/* - * linux/drivers/acorn/block/mfmhd.c - * - * Copyright (C) 1995, 1996 Russell King, Dave Alan Gilbert (gilbertd@cs.man.ac.uk) - * - * MFM hard drive code [experimental] - */ - -/* - * Change list: - * - * 3/2/96:DAG: Started a change list :-) - * Set the hardsect_size pointers up since we are running 256 byte - * sectors - * Added DMA code, put it into the rw_intr - * Moved RCAL out of generic interrupt code - don't want to do it - * while DMA'ing - its now in individual handlers. - * Took interrupt handlers off task queue lists and called - * directly - not sure of implications. - * - * 18/2/96:DAG: Well its reading OK I think, well enough for image file code - * to find the image file; but now I've discovered that I actually - * have to put some code in for image files. - * - * Added stuff for image files; seems to work, but I've not - * got a multisegment image file (I don't think!). - * Put in a hack (yep a real hack) for multiple cylinder reads. - * Not convinced its working. - * - * 5/4/96:DAG: Added asm/hardware.h and use IOC_ macros - * Rewrote dma code in mfm.S (again!) - now takes a word at a time - * from main RAM for speed; still doesn't feel speedy! - * - * 20/4/96:DAG: After rewriting mfm.S a heck of a lot of times and speeding - * things up, I've finally figured out why its so damn slow. - * Linux is only reading a block at a time, and so you never - * get more than 1K per disc revoloution ~=60K/second. - * - * 27/4/96:DAG: On Russell's advice I change ll_rw_blk.c to ask it to - * join adjacent blocks together. Everything falls flat on its - * face. - * Four hours of debugging later; I hadn't realised that - * ll_rw_blk would be so generous as to join blocks whose - * results aren't going into consecutive buffers. - * - * OK; severe rehacking of mfm_rw_interrupt; now end_request's - * as soon as its DMA'd each request. Odd thing is that - * we are sometimes getting interrupts where we are not transferring - * any data; why? Is that what happens when you miss? I doubt - * it; are we too fast? No - its just at command ends. Got 240K/s - * better than before, but RiscOS hits 480K/s - * - * 25/6/96:RMK: Fixed init code to allow the MFM podule to work. Increased the - * number of errors for my Miniscribe drive (8425). - * - * 30/6/96:DAG: Russell suggested that a check drive 0 might turn the LEDs off - * - so in request_done just before it clears Busy it sends a - * check drive 0 - and the LEDs go off!!!! - * - * Added test for mainboard controller. - Removes need for separate - * define. - * - * 13/7/96:DAG: Changed hardware sectore size to 512 in attempt to make - * IM drivers work. - * 21/7/96:DAG: Took out old image file stuff (accessing it now produces an IO - * error.) - * - * 17/8/96:DAG: Ran through indent -kr -i8; evil - all my nice 2 character indents - * gone :-( Hand modified afterwards. - * Took out last remains of the older image map system. - * - * 22/9/96:DAG: Changed mfm.S so it will carry on DMA'ing til; BSY is dropped - * Changed mfm_rw_intr so that it doesn't follow the error - * code until BSY is dropped. Nope - still broke. Problem - * may revolve around when it reads the results for the error - * number? - * - *16/11/96:DAG: Modified for 2.0.18; request_irq changed - * - *17/12/96:RMK: Various cleanups, reorganisation, and the changes for new IO system. - * Improved probe for onboard MFM chip - it was hanging on my A5k. - * Added autodetect CHS code such that we don't rely on the presence - * of an ADFS boot block. Added ioport resource manager calls so - * that we don't clash with already-running hardware (eg. RiscPC Ether - * card slots if someone tries this)! - * - * 17/1/97:RMK: Upgraded to 2.1 kernels. - * - * 4/3/98:RMK: Changed major number to 21. - * - * 27/6/98:RMK: Changed asm/delay.h to linux/delay.h for mdelay(). - */ - -/* - * Possible enhancements: - * Multi-thread the code so that it is possible that while one drive - * is seeking, the other one can be reading data/seeking as well. - * This would be a performance boost with dual drive systems. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include - -static void (*do_mfm)(void) = NULL; -static struct request_queue *mfm_queue; -static DEFINE_SPINLOCK(mfm_lock); - -#define MAJOR_NR MFM_ACORN_MAJOR -#define QUEUE (mfm_queue) -#define CURRENT elv_next_request(mfm_queue) - -/* - * Configuration section - * - * This is the maximum number of drives that we accept - */ -#define MFM_MAXDRIVES 2 -/* - * Linux I/O address of onboard MFM controller or 0 to disable this - */ -#define ONBOARD_MFM_ADDRESS ((0x002d0000 >> 2) | 0x80000000) -/* - * Uncomment this to enable debugging in the MFM driver... - */ -#ifndef DEBUG -/*#define DEBUG */ -#endif -/* - * End of configuration - */ - - -/* - * This structure contains all information to do with a particular physical - * device. - */ -struct mfm_info { - unsigned char sectors; - unsigned char heads; - unsigned short cylinders; - unsigned short lowcurrent; - unsigned short precomp; -#define NO_TRACK -1 -#define NEED_1_RECAL -2 -#define NEED_2_RECAL -3 - int cylinder; - struct { - char recal; - char report; - char abort; - } errors; -} mfm_info[MFM_MAXDRIVES]; - -#define MFM_DRV_INFO mfm_info[raw_cmd.dev] - -/* Stuff from the assembly routines */ -extern unsigned int hdc63463_baseaddress; /* Controller base address */ -extern unsigned int hdc63463_irqpolladdress; /* Address to read to test for int */ -extern unsigned int hdc63463_irqpollmask; /* Mask for irq register */ -extern unsigned int hdc63463_dataptr; /* Pointer to kernel data space to DMA */ -extern int hdc63463_dataleft; /* Number of bytes left to transfer */ - - - - -static int lastspecifieddrive; -static unsigned Busy; - -static unsigned int PartFragRead; /* The number of sectors which have been read - during a partial read split over two - cylinders. If 0 it means a partial - read did not occur. */ - -static unsigned int PartFragRead_RestartBlock; /* Where to restart on a split access */ -static unsigned int PartFragRead_SectorsLeft; /* Where to restart on a split access */ - -static int Sectors256LeftInCurrent; /* i.e. 256 byte sectors left in current */ -static int SectorsLeftInRequest; /* i.e. blocks left in the thing mfm_request was called for */ -static int Copy_Sector; /* The 256 byte sector we are currently at - fragments need to know - where to take over */ -static char *Copy_buffer; - - -static void mfm_seek(void); -static void mfm_rerequest(void); -static void mfm_request(void); -static void mfm_specify (void); -static void issue_request(unsigned int block, unsigned int nsect, - struct request *req); - -static unsigned int mfm_addr; /* Controller address */ -static unsigned int mfm_IRQPollLoc; /* Address to read for IRQ information */ -static unsigned int mfm_irqenable; /* Podule IRQ enable location */ -static unsigned char mfm_irq; /* Interrupt number */ -static int mfm_drives = 0; /* drives available */ -static int mfm_status = 0; /* interrupt status */ -static int *errors; - -static struct rawcmd { - unsigned int dev; - unsigned int cylinder; - unsigned int head; - unsigned int sector; - unsigned int cmdtype; - unsigned int cmdcode; - unsigned char cmddata[16]; - unsigned int cmdlen; -} raw_cmd; - -static unsigned char result[16]; - -static struct cont { - void (*interrupt) (void); /* interrupt handler */ - void (*error) (void); /* error handler */ - void (*redo) (void); /* redo handler */ - void (*done) (int st); /* done handler */ -} *cont = NULL; - -#if 0 -static struct tq_struct mfm_tq = {0, 0, (void (*)(void *)) NULL, 0}; -#endif - -int number_mfm_drives = 1; - -/* ------------------------------------------------------------------------------------------ */ -/* - * From the HD63463 data sheet from Hitachi Ltd. - */ - -#define MFM_COMMAND (mfm_addr + 0) -#define MFM_DATAOUT (mfm_addr + 1) -#define MFM_STATUS (mfm_addr + 8) -#define MFM_DATAIN (mfm_addr + 9) - -#define CMD_ABT 0xF0 /* Abort */ -#define CMD_SPC 0xE8 /* Specify */ -#define CMD_TST 0xE0 /* Test */ -#define CMD_RCLB 0xC8 /* Recalibrate */ -#define CMD_SEK 0xC0 /* Seek */ -#define CMD_WFS 0xAB /* Write Format Skew */ -#define CMD_WFM 0xA3 /* Write Format */ -#define CMD_MTB 0x90 /* Memory to buffer */ -#define CMD_CMPD 0x88 /* Compare data */ -#define CMD_WD 0x87 /* Write data */ -#define CMD_RED 0x70 /* Read erroneous data */ -#define CMD_RIS 0x68 /* Read ID skew */ -#define CMD_FID 0x61 /* Find ID */ -#define CMD_RID 0x60 /* Read ID */ -#define CMD_BTM 0x50 /* Buffer to memory */ -#define CMD_CKD 0x48 /* Check data */ -#define CMD_RD 0x40 /* Read data */ -#define CMD_OPBW 0x38 /* Open buffer write */ -#define CMD_OPBR 0x30 /* Open buffer read */ -#define CMD_CKV 0x28 /* Check drive */ -#define CMD_CKE 0x20 /* Check ECC */ -#define CMD_POD 0x18 /* Polling disable */ -#define CMD_POL 0x10 /* Polling enable */ -#define CMD_RCAL 0x08 /* Recall */ - -#define STAT_BSY 0x8000 /* Busy */ -#define STAT_CPR 0x4000 /* Command Parameter Rejection */ -#define STAT_CED 0x2000 /* Command end */ -#define STAT_SED 0x1000 /* Seek end */ -#define STAT_DER 0x0800 /* Drive error */ -#define STAT_ABN 0x0400 /* Abnormal end */ -#define STAT_POL 0x0200 /* Polling */ - -/* ------------------------------------------------------------------------------------------ */ -#ifdef DEBUG -static void console_printf(const char *fmt,...) -{ - static char buffer[2048]; /* Arbitary! */ - extern void console_print(const char *); - unsigned long flags; - va_list ap; - - local_irq_save(flags); - - va_start(ap, fmt); - vsprintf(buffer, fmt, ap); - console_print(buffer); - va_end(fmt); - - local_irq_restore(flags); -}; /* console_printf */ - -#define DBG(x...) console_printf(x) -#else -#define DBG(x...) -#endif - -static void print_status(void) -{ - char *error; - static char *errors[] = { - "no error", - "command aborted", - "invalid command", - "parameter error", - "not initialised", - "rejected TEST", - "no useld", - "write fault", - "not ready", - "no scp", - "in seek", - "invalid NCA", - "invalid step rate", - "seek error", - "over run", - "invalid PHA", - "data field EEC error", - "data field CRC error", - "error corrected", - "data field fatal error", - "no data am", - "not hit", - "ID field CRC error", - "time over", - "no ID am", - "not writable" - }; - if (result[1] < 0x65) - error = errors[result[1] >> 2]; - else - error = "unknown"; - printk("("); - if (mfm_status & STAT_BSY) printk("BSY "); - if (mfm_status & STAT_CPR) printk("CPR "); - if (mfm_status & STAT_CED) printk("CED "); - if (mfm_status & STAT_SED) printk("SED "); - if (mfm_status & STAT_DER) printk("DER "); - if (mfm_status & STAT_ABN) printk("ABN "); - if (mfm_status & STAT_POL) printk("POL "); - printk(") SSB = %X (%s)\n", result[1], error); - -} - -/* ------------------------------------------------------------------------------------- */ - -static void issue_command(int command, unsigned char *cmdb, int len) -{ - int status; -#ifdef DEBUG - int i; - console_printf("issue_command: %02X: ", command); - for (i = 0; i < len; i++) - console_printf("%02X ", cmdb[i]); - console_printf("\n"); -#endif - - do { - status = inw(MFM_STATUS); - } while (status & (STAT_BSY | STAT_POL)); - DBG("issue_command: status after pol/bsy loop: %02X:\n ", status >> 8); - - if (status & (STAT_CPR | STAT_CED | STAT_SED | STAT_DER | STAT_ABN)) { - outw(CMD_RCAL, MFM_COMMAND); - while (inw(MFM_STATUS) & STAT_BSY); - } - status = inw(MFM_STATUS); - DBG("issue_command: status before parameter issue: %02X:\n ", status >> 8); - - while (len > 0) { - outw(cmdb[1] | (cmdb[0] << 8), MFM_DATAOUT); - len -= 2; - cmdb += 2; - } - status = inw(MFM_STATUS); - DBG("issue_command: status before command issue: %02X:\n ", status >> 8); - - outw(command, MFM_COMMAND); - status = inw(MFM_STATUS); - DBG("issue_command: status immediately after command issue: %02X:\n ", status >> 8); -} - -static void wait_for_completion(void) -{ - while ((mfm_status = inw(MFM_STATUS)) & STAT_BSY); -} - -static void wait_for_command_end(void) -{ - int i; - - while (!((mfm_status = inw(MFM_STATUS)) & STAT_CED)); - - for (i = 0; i < 16;) { - int in; - in = inw(MFM_DATAIN); - result[i++] = in >> 8; - result[i++] = in; - } - outw (CMD_RCAL, MFM_COMMAND); -} - -/* ------------------------------------------------------------------------------------- */ - -static void mfm_rw_intr(void) -{ - int old_status; /* Holds status on entry, we read to see if the command just finished */ -#ifdef DEBUG - console_printf("mfm_rw_intr...dataleft=%d\n", hdc63463_dataleft); - print_status(); -#endif - - /* Now don't handle the error until BSY drops */ - if ((mfm_status & (STAT_DER | STAT_ABN)) && ((mfm_status&STAT_BSY)==0)) { - /* Something has gone wrong - let's try that again */ - outw(CMD_RCAL, MFM_COMMAND); /* Clear interrupt condition */ - if (cont) { - DBG("mfm_rw_intr: DER/ABN err\n"); - cont->error(); - cont->redo(); - }; - return; - }; - - /* OK so what ever happened it's not an error, now I reckon we are left between - a choice of command end or some data which is ready to be collected */ - /* I think we have to transfer data while the interrupt line is on and its - not any other type of interrupt */ - if (rq_data_dir(CURRENT) == WRITE) { - extern void hdc63463_writedma(void); - if ((hdc63463_dataleft <= 0) && (!(mfm_status & STAT_CED))) { - printk("mfm_rw_intr: Apparent DMA write request when no more to DMA\n"); - if (cont) { - cont->error(); - cont->redo(); - }; - return; - }; - hdc63463_writedma(); - } else { - extern void hdc63463_readdma(void); - if ((hdc63463_dataleft <= 0) && (!(mfm_status & STAT_CED))) { - printk("mfm_rw_intr: Apparent DMA read request when no more to DMA\n"); - if (cont) { - cont->error(); - cont->redo(); - }; - return; - }; - DBG("Going to try read dma..............status=0x%x, buffer=%p\n", mfm_status, hdc63463_dataptr); - hdc63463_readdma(); - }; /* Read */ - - if (hdc63463_dataptr != ((unsigned int) Copy_buffer + 256)) { - /* If we didn't actually manage to get any data on this interrupt - but why? We got the interrupt */ - /* Ah - well looking at the status its just when we get command end; so no problem */ - /*console_printf("mfm: dataptr mismatch. dataptr=0x%08x Copy_buffer+256=0x%08p\n", - hdc63463_dataptr,Copy_buffer+256); - print_status(); */ - } else { - Sectors256LeftInCurrent--; - Copy_buffer += 256; - Copy_Sector++; - - /* We have come to the end of this request */ - if (!Sectors256LeftInCurrent) { - DBG("mfm: end_request for CURRENT=0x%p CURRENT(sector=%d current_nr_sectors=%d nr_sectors=%d)\n", - CURRENT, CURRENT->sector, CURRENT->current_nr_sectors, CURRENT->nr_sectors); - - CURRENT->nr_sectors -= CURRENT->current_nr_sectors; - CURRENT->sector += CURRENT->current_nr_sectors; - SectorsLeftInRequest -= CURRENT->current_nr_sectors; - - end_request(CURRENT, 1); - if (SectorsLeftInRequest) { - hdc63463_dataptr = (unsigned int) CURRENT->buffer; - Copy_buffer = CURRENT->buffer; - Sectors256LeftInCurrent = CURRENT->current_nr_sectors * 2; - errors = &(CURRENT->errors); - /* These should match the present calculations of the next logical sector - on the device - Copy_Sector=CURRENT->sector*2; */ - - if (Copy_Sector != CURRENT->sector * 2) -#ifdef DEBUG - /*console_printf*/printk("mfm: Copy_Sector mismatch. Copy_Sector=%d CURRENT->sector*2=%d\n", - Copy_Sector, CURRENT->sector * 2); -#else - printk("mfm: Copy_Sector mismatch! Eek!\n"); -#endif - }; /* CURRENT */ - }; /* Sectors256LeftInCurrent */ - }; - - old_status = mfm_status; - mfm_status = inw(MFM_STATUS); - if (mfm_status & (STAT_DER | STAT_ABN)) { - /* Something has gone wrong - let's try that again */ - if (cont) { - DBG("mfm_rw_intr: DER/ABN error\n"); - cont->error(); - cont->redo(); - }; - return; - }; - - /* If this code wasn't entered due to command_end but there is - now a command end we must read the command results out. If it was - entered like this then mfm_interrupt_handler would have done the - job. */ - if ((!((old_status & (STAT_CPR | STAT_BSY)) == STAT_CPR)) && - ((mfm_status & (STAT_CPR | STAT_BSY)) == STAT_CPR)) { - int len = 0; - while (len < 16) { - int in; - in = inw(MFM_DATAIN); - result[len++] = in >> 8; - result[len++] = in; - }; - }; /* Result read */ - - /*console_printf ("mfm_rw_intr nearexit [%02X]\n", __raw_readb(mfm_IRQPollLoc)); */ - - /* If end of command move on */ - if (mfm_status & (STAT_CED)) { - outw(CMD_RCAL, MFM_COMMAND); /* Clear interrupt condition */ - /* End of command - trigger the next command */ - if (cont) { - cont->done(1); - } - DBG("mfm_rw_intr: returned from cont->done\n"); - } else { - /* Its going to generate another interrupt */ - do_mfm = mfm_rw_intr; - }; -} - -static void mfm_setup_rw(void) -{ - DBG("setting up for rw...\n"); - - do_mfm = mfm_rw_intr; - issue_command(raw_cmd.cmdcode, raw_cmd.cmddata, raw_cmd.cmdlen); -} - -static void mfm_recal_intr(void) -{ -#ifdef DEBUG - console_printf("recal intr - status = "); - print_status(); -#endif - outw(CMD_RCAL, MFM_COMMAND); /* Clear interrupt condition */ - if (mfm_status & (STAT_DER | STAT_ABN)) { - printk("recal failed\n"); - MFM_DRV_INFO.cylinder = NEED_2_RECAL; - if (cont) { - cont->error(); - cont->redo(); - } - return; - } - /* Thats seek end - we are finished */ - if (mfm_status & STAT_SED) { - issue_command(CMD_POD, NULL, 0); - MFM_DRV_INFO.cylinder = 0; - mfm_seek(); - return; - } - /* Command end without seek end (see data sheet p.20) for parallel seek - - we have to send a POL command to wait for the seek */ - if (mfm_status & STAT_CED) { - do_mfm = mfm_recal_intr; - issue_command(CMD_POL, NULL, 0); - return; - } - printk("recal: unknown status\n"); -} - -static void mfm_seek_intr(void) -{ -#ifdef DEBUG - console_printf("seek intr - status = "); - print_status(); -#endif - outw(CMD_RCAL, MFM_COMMAND); /* Clear interrupt condition */ - if (mfm_status & (STAT_DER | STAT_ABN)) { - printk("seek failed\n"); - MFM_DRV_INFO.cylinder = NEED_2_RECAL; - if (cont) { - cont->error(); - cont->redo(); - } - return; - } - if (mfm_status & STAT_SED) { - issue_command(CMD_POD, NULL, 0); - MFM_DRV_INFO.cylinder = raw_cmd.cylinder; - mfm_seek(); - return; - } - if (mfm_status & STAT_CED) { - do_mfm = mfm_seek_intr; - issue_command(CMD_POL, NULL, 0); - return; - } - printk("seek: unknown status\n"); -} - -/* IDEA2 seems to work better - its what RiscOS sets my - * disc to - on its SECOND call to specify! - */ -#define IDEA2 -#ifndef IDEA2 -#define SPEC_SL 0x16 -#define SPEC_SH 0xa9 /* Step pulse high=21, Record Length=001 (256 bytes) */ -#else -#define SPEC_SL 0x00 /* OM2 - SL - step pulse low */ -#define SPEC_SH 0x21 /* Step pulse high=4, Record Length=001 (256 bytes) */ -#endif - -static void mfm_setupspecify (int drive, unsigned char *cmdb) -{ - cmdb[0] = 0x1f; /* OM0 - !SECT,!MOD,!DIF,PADP,ECD,CRCP,CRCI,ACOR */ - cmdb[1] = 0xc3; /* OM1 - DTM,BRST,!CEDM,!SEDM,!DERM,0,AMEX,PSK */ - cmdb[2] = SPEC_SL; /* OM2 - SL - step pulse low */ - cmdb[3] = (number_mfm_drives == 1) ? 0x02 : 0x06; /* 1 or 2 drives */ - cmdb[4] = 0xfc | ((mfm_info[drive].cylinders - 1) >> 8);/* RW time over/high part of number of cylinders */ - cmdb[5] = mfm_info[drive].cylinders - 1; /* low part of number of cylinders */ - cmdb[6] = mfm_info[drive].heads - 1; /* Number of heads */ - cmdb[7] = mfm_info[drive].sectors - 1; /* Number of sectors */ - cmdb[8] = SPEC_SH; - cmdb[9] = 0x0a; /* gap length 1 */ - cmdb[10] = 0x0d; /* gap length 2 */ - cmdb[11] = 0x0c; /* gap length 3 */ - cmdb[12] = (mfm_info[drive].precomp - 1) >> 8; /* pre comp cylinder */ - cmdb[13] = mfm_info[drive].precomp - 1; - cmdb[14] = (mfm_info[drive].lowcurrent - 1) >> 8; /* Low current cylinder */ - cmdb[15] = mfm_info[drive].lowcurrent - 1; -} - -static void mfm_specify (void) -{ - unsigned char cmdb[16]; - - DBG("specify...dev=%d lastspecified=%d\n", raw_cmd.dev, lastspecifieddrive); - mfm_setupspecify (raw_cmd.dev, cmdb); - - issue_command (CMD_SPC, cmdb, 16); - /* Ensure that we will do another specify if we move to the other drive */ - lastspecifieddrive = raw_cmd.dev; - wait_for_completion(); -} - -static void mfm_seek(void) -{ - unsigned char cmdb[4]; - - DBG("seeking...\n"); - if (MFM_DRV_INFO.cylinder < 0) { - do_mfm = mfm_recal_intr; - DBG("mfm_seek: about to call specify\n"); - mfm_specify (); /* DAG added this */ - - cmdb[0] = raw_cmd.dev + 1; - cmdb[1] = 0; - - issue_command(CMD_RCLB, cmdb, 2); - return; - } - if (MFM_DRV_INFO.cylinder != raw_cmd.cylinder) { - cmdb[0] = raw_cmd.dev + 1; - cmdb[1] = 0; /* raw_cmd.head; DAG: My data sheet says this should be 0 */ - cmdb[2] = raw_cmd.cylinder >> 8; - cmdb[3] = raw_cmd.cylinder; - - do_mfm = mfm_seek_intr; - issue_command(CMD_SEK, cmdb, 4); - } else - mfm_setup_rw(); -} - -static void mfm_initialise(void) -{ - DBG("init...\n"); - mfm_seek(); -} - -static void request_done(int uptodate) -{ - DBG("mfm:request_done\n"); - if (uptodate) { - unsigned char block[2] = {0, 0}; - - /* Apparently worked - let's check bytes left to DMA */ - if (hdc63463_dataleft != (PartFragRead_SectorsLeft * 256)) { - printk("mfm: request_done - dataleft=%d - should be %d - Eek!\n", hdc63463_dataleft, PartFragRead_SectorsLeft * 256); - end_request(CURRENT, 0); - Busy = 0; - }; - /* Potentially this means that we've done; but we might be doing - a partial access, (over two cylinders) or we may have a number - of fragments in an image file. First let's deal with partial accesss - */ - if (PartFragRead) { - /* Yep - a partial access */ - - /* and issue the remainder */ - issue_request(PartFragRead_RestartBlock, PartFragRead_SectorsLeft, CURRENT); - return; - } - - /* ah well - perhaps there is another fragment to go */ - - /* Increment pointers/counts to start of next fragment */ - if (SectorsLeftInRequest > 0) printk("mfm: SectorsLeftInRequest>0 - Eek! Shouldn't happen!\n"); - - /* No - its the end of the line */ - /* end_request's should have happened at the end of sector DMAs */ - /* Turns Drive LEDs off - may slow it down? */ - if (!elv_next_request(QUEUE)) - issue_command(CMD_CKV, block, 2); - - Busy = 0; - DBG("request_done: About to mfm_request\n"); - /* Next one please */ - mfm_request(); /* Moved from mfm_rw_intr */ - DBG("request_done: returned from mfm_request\n"); - } else { - printk("mfm:request_done: update=0\n"); - end_request(CURRENT, 0); - Busy = 0; - } -} - -static void error_handler(void) -{ - printk("error detected... status = "); - print_status(); - (*errors)++; - if (*errors > MFM_DRV_INFO.errors.abort) - cont->done(0); - if (*errors > MFM_DRV_INFO.errors.recal) - MFM_DRV_INFO.cylinder = NEED_2_RECAL; -} - -static void rw_interrupt(void) -{ - printk("rw_interrupt\n"); -} - -static struct cont rw_cont = -{ - rw_interrupt, - error_handler, - mfm_rerequest, - request_done -}; - -/* - * Actually gets round to issuing the request - note everything at this - * point is in 256 byte sectors not Linux 512 byte blocks - */ -static void issue_request(unsigned int block, unsigned int nsect, - struct request *req) -{ - struct gendisk *disk = req->rq_disk; - struct mfm_info *p = disk->private_data; - int track, start_head, start_sector; - int sectors_to_next_cyl; - dev = p - mfm_info; - - track = block / p->sectors; - start_sector = block % p->sectors; - start_head = track % p->heads; - - /* First get the number of whole tracks which are free before the next - track */ - sectors_to_next_cyl = (p->heads - (start_head + 1)) * p->sectors; - /* Then add in the number of sectors left on this track */ - sectors_to_next_cyl += (p->sectors - start_sector); - - DBG("issue_request: mfm_info[dev].sectors=%d track=%d\n", p->sectors, track); - - raw_cmd.dev = dev; - raw_cmd.sector = start_sector; - raw_cmd.head = start_head; - raw_cmd.cylinder = track / p->heads; - raw_cmd.cmdtype = CURRENT->cmd; - raw_cmd.cmdcode = rq_data_dir(CURRENT) == WRITE ? CMD_WD : CMD_RD; - raw_cmd.cmddata[0] = dev + 1; /* DAG: +1 to get US */ - raw_cmd.cmddata[1] = raw_cmd.head; - raw_cmd.cmddata[2] = raw_cmd.cylinder >> 8; - raw_cmd.cmddata[3] = raw_cmd.cylinder; - raw_cmd.cmddata[4] = raw_cmd.head; - raw_cmd.cmddata[5] = raw_cmd.sector; - - /* Was == and worked - how the heck??? */ - if (lastspecifieddrive != raw_cmd.dev) - mfm_specify (); - - if (nsect <= sectors_to_next_cyl) { - raw_cmd.cmddata[6] = nsect >> 8; - raw_cmd.cmddata[7] = nsect; - PartFragRead = 0; /* All in one */ - PartFragRead_SectorsLeft = 0; /* Must set this - used in DMA calcs */ - } else { - raw_cmd.cmddata[6] = sectors_to_next_cyl >> 8; - raw_cmd.cmddata[7] = sectors_to_next_cyl; - PartFragRead = sectors_to_next_cyl; /* only do this many this time */ - PartFragRead_RestartBlock = block + sectors_to_next_cyl; /* Where to restart from */ - PartFragRead_SectorsLeft = nsect - sectors_to_next_cyl; - } - raw_cmd.cmdlen = 8; - - /* Setup DMA pointers */ - hdc63463_dataptr = (unsigned int) Copy_buffer; - hdc63463_dataleft = nsect * 256; /* Better way? */ - - DBG("mfm%c: %sing: CHS=%d/%d/%d, sectors=%d, buffer=0x%08lx (%p)\n", - raw_cmd.dev + 'a', rq_data_dir(CURRENT) == READ ? "read" : "writ", - raw_cmd.cylinder, - raw_cmd.head, - raw_cmd.sector, nsect, (unsigned long) Copy_buffer, CURRENT); - - cont = &rw_cont; - errors = &(CURRENT->errors); -#if 0 - mfm_tq.routine = (void (*)(void *)) mfm_initialise; - queue_task(&mfm_tq, &tq_immediate); - mark_bh(IMMEDIATE_BH); -#else - mfm_initialise(); -#endif -} /* issue_request */ - -/* - * Called when an error has just happened - need to trick mfm_request - * into thinking we weren't busy - * - * Turn off ints - mfm_request expects them this way - */ -static void mfm_rerequest(void) -{ - DBG("mfm_rerequest\n"); - cli(); - Busy = 0; - mfm_request(); -} - -static struct gendisk *mfm_gendisk[2]; - -static void mfm_request(void) -{ - DBG("mfm_request CURRENT=%p Busy=%d\n", CURRENT, Busy); - - /* If we are still processing then return; we will get called again */ - if (Busy) { - /* Again seems to be common in 1.3.45 */ - /*DBG*/printk("mfm_request: Exiting due to busy\n"); - return; - } - Busy = 1; - - while (1) { - unsigned int block, nsect; - struct gendisk *disk; - - DBG("mfm_request: loop start\n"); - sti(); - - DBG("mfm_request: before !CURRENT\n"); - - if (!CURRENT) { - printk("mfm_request: Exiting due to empty queue (pre)\n"); - do_mfm = NULL; - Busy = 0; - return; - } - - DBG("mfm_request: before arg extraction\n"); - - disk = CURRENT->rq_disk; - block = CURRENT->sector; - nsect = CURRENT->nr_sectors; - if (block >= get_capacity(disk) || - block+nsect > get_capacity(disk)) { - printk("%s: bad access: block=%d, count=%d, nr_sects=%ld\n", - disk->disk_name, block, nsect, get_capacity(disk)); - printk("mfm: continue 1\n"); - end_request(CURRENT, 0); - Busy = 0; - continue; - } - - /* DAG: Linux doesn't cope with this - even though it has an array telling - it the hardware block size - silly */ - block <<= 1; /* Now in 256 byte sectors */ - nsect <<= 1; /* Ditto */ - - SectorsLeftInRequest = nsect >> 1; - Sectors256LeftInCurrent = CURRENT->current_nr_sectors * 2; - Copy_buffer = CURRENT->buffer; - Copy_Sector = CURRENT->sector << 1; - - DBG("mfm_request: block after offset=%d\n", block); - - issue_request(block, nsect, CURRENT); - - break; - } - DBG("mfm_request: Dropping out bottom\n"); -} - -static void do_mfm_request(struct request_queue *q) -{ - DBG("do_mfm_request: about to mfm_request\n"); - mfm_request(); -} - -static void mfm_interrupt_handler(int unused, void *dev_id) -{ - void (*handler) (void) = do_mfm; - - do_mfm = NULL; - - DBG("mfm_interrupt_handler (handler=0x%p)\n", handler); - - mfm_status = inw(MFM_STATUS); - - /* If CPR (Command Parameter Reject) and not busy it means that the command - has some return message to give us */ - if ((mfm_status & (STAT_CPR | STAT_BSY)) == STAT_CPR) { - int len = 0; - while (len < 16) { - int in; - in = inw(MFM_DATAIN); - result[len++] = in >> 8; - result[len++] = in; - } - } - if (handler) { - handler(); - return; - } - outw (CMD_RCAL, MFM_COMMAND); /* Clear interrupt condition */ - printk ("mfm: unexpected interrupt - status = "); - print_status (); - while (1); -} - - - - - -/* - * Tell the user about the drive if we decided it exists. - */ -static void mfm_geometry(int drive) -{ - struct mfm_info *p = mfm_info + drive; - struct gendisk *disk = mfm_gendisk[drive]; - disk->private_data = p; - if (p->cylinders) - printk ("%s: %dMB CHS=%d/%d/%d LCC=%d RECOMP=%d\n", - disk->disk_name, - p->cylinders * p->heads * p->sectors / 4096, - p->cylinders, p->heads, p->sectors, - p->lowcurrent, p->precomp); - set_capacity(disk, p->cylinders * p->heads * p->sectors / 2); -} - -#ifdef CONFIG_BLK_DEV_MFM_AUTODETECT -/* - * Attempt to detect a drive and find its geometry. The drive has already been - * specified... - * - * We first recalibrate the disk, then try to probe sectors, heads and then - * cylinders. NOTE! the cylinder probe may break drives. The xd disk driver - * does something along these lines, so I assume that most drives are up to - * this mistreatment... - */ -static int mfm_detectdrive (int drive) -{ - unsigned int mingeo[3], maxgeo[3]; - unsigned int attribute, need_recal = 1; - unsigned char cmdb[8]; - - memset (mingeo, 0, sizeof (mingeo)); - maxgeo[0] = mfm_info[drive].sectors; - maxgeo[1] = mfm_info[drive].heads; - maxgeo[2] = mfm_info[drive].cylinders; - - cmdb[0] = drive + 1; - cmdb[6] = 0; - cmdb[7] = 1; - for (attribute = 0; attribute < 3; attribute++) { - while (mingeo[attribute] != maxgeo[attribute]) { - unsigned int variable; - - variable = (maxgeo[attribute] + mingeo[attribute]) >> 1; - cmdb[1] = cmdb[2] = cmdb[3] = cmdb[4] = cmdb[5] = 0; - - if (need_recal) { - int tries = 5; - - do { - issue_command (CMD_RCLB, cmdb, 2); - wait_for_completion (); - wait_for_command_end (); - if (result[1] == 0x20) - break; - } while (result[1] && --tries); - if (result[1]) { - outw (CMD_RCAL, MFM_COMMAND); - return 0; - } - need_recal = 0; - } - - switch (attribute) { - case 0: - cmdb[5] = variable; - issue_command (CMD_CMPD, cmdb, 8); - break; - case 1: - cmdb[1] = variable; - cmdb[4] = variable; - issue_command (CMD_CMPD, cmdb, 8); - break; - case 2: - cmdb[2] = variable >> 8; - cmdb[3] = variable; - issue_command (CMD_SEK, cmdb, 4); - break; - } - wait_for_completion (); - wait_for_command_end (); - - switch (result[1]) { - case 0x00: - case 0x50: - mingeo[attribute] = variable + 1; - break; - - case 0x20: - outw (CMD_RCAL, MFM_COMMAND); - return 0; - - case 0x24: - need_recal = 1; - default: - maxgeo[attribute] = variable; - break; - } - } - } - mfm_info[drive].cylinders = mingeo[2]; - mfm_info[drive].lowcurrent = mingeo[2]; - mfm_info[drive].precomp = mingeo[2] / 2; - mfm_info[drive].heads = mingeo[1]; - mfm_info[drive].sectors = mingeo[0]; - outw (CMD_RCAL, MFM_COMMAND); - return 1; -} -#endif - -/* - * Initialise all drive information for this controller. - */ -static int mfm_initdrives(void) -{ - int drive; - - if (number_mfm_drives > MFM_MAXDRIVES) { - number_mfm_drives = MFM_MAXDRIVES; - printk("No. of ADFS MFM drives is greater than MFM_MAXDRIVES - you can't have that many!\n"); - } - - for (drive = 0; drive < number_mfm_drives; drive++) { - mfm_info[drive].lowcurrent = 1; - mfm_info[drive].precomp = 1; - mfm_info[drive].cylinder = -1; - mfm_info[drive].errors.recal = 0; - mfm_info[drive].errors.report = 0; - mfm_info[drive].errors.abort = 4; - -#ifdef CONFIG_BLK_DEV_MFM_AUTODETECT - mfm_info[drive].cylinders = 1024; - mfm_info[drive].heads = 8; - mfm_info[drive].sectors = 64; - { - unsigned char cmdb[16]; - - mfm_setupspecify (drive, cmdb); - cmdb[1] &= ~0x81; - issue_command (CMD_SPC, cmdb, 16); - wait_for_completion (); - if (!mfm_detectdrive (drive)) { - mfm_info[drive].cylinders = 0; - mfm_info[drive].heads = 0; - mfm_info[drive].sectors = 0; - } - cmdb[0] = cmdb[1] = 0; - issue_command (CMD_CKV, cmdb, 2); - } -#else - mfm_info[drive].cylinders = 1; /* its going to have to figure it out from the partition info */ - mfm_info[drive].heads = 4; - mfm_info[drive].sectors = 32; -#endif - } - return number_mfm_drives; -} - - - -/* - * The 'front' end of the mfm driver follows... - */ - -static int mfm_getgeo(struct block_device *bdev, struct hd_geometry *geo) -{ - struct mfm_info *p = bdev->bd_disk->private_data; - - geo->heads = p->heads; - geo->sectors = p->sectors; - geo->cylinders = p->cylinders; - return 0; -} - -/* - * This is to handle various kernel command line parameters - * specific to this driver. - */ -void mfm_setup(char *str, int *ints) -{ - return; -} - -/* - * Set the CHS from the ADFS boot block if it is present. This is not ideal - * since if there are any non-ADFS partitions on the disk, this won't work! - * Hence, I want to get rid of this... - */ -void xd_set_geometry(struct block_device *bdev, unsigned char secsptrack, - unsigned char heads, unsigned int secsize) -{ - struct mfm_info *p = bdev->bd_disk->private_data; - int drive = p - mfm_info; - unsigned long disksize = bdev->bd_inode->i_size; - - if (p->cylinders == 1) { - p->sectors = secsptrack; - p->heads = heads; - p->cylinders = discsize / (secsptrack * heads * secsize); - - if ((heads < 1) || (p->cylinders > 1024)) { - printk("%s: Insane disc shape! Setting to 512/4/32\n", - bdev->bd_disk->disk_name); - - /* These values are fairly arbitary, but are there so that if your - * lucky you can pick apart your disc to find out what is going on - - * I reckon these figures won't hurt MOST drives - */ - p->sectors = 32; - p->heads = 4; - p->cylinders = 512; - } - if (raw_cmd.dev == drive) - mfm_specify (); - mfm_geometry (drive); - } -} - -static struct block_device_operations mfm_fops = -{ - .owner = THIS_MODULE, - .getgeo = mfm_getgeo, -}; - -/* - * See if there is a controller at the address presently at mfm_addr - * - * We check to see if the controller is busy - if it is, we abort it first, - * and check that the chip is no longer busy after at least 180 clock cycles. - * We then issue a command and check that the BSY or CPR bits are set. - */ -static int mfm_probecontroller (unsigned int mfm_addr) -{ - if (inw (MFM_STATUS) & STAT_BSY) { - outw (CMD_ABT, MFM_COMMAND); - udelay (50); - if (inw (MFM_STATUS) & STAT_BSY) - return 0; - } - - if (inw (MFM_STATUS) & STAT_CED) - outw (CMD_RCAL, MFM_COMMAND); - - outw (CMD_SEK, MFM_COMMAND); - - if (inw (MFM_STATUS) & (STAT_BSY | STAT_CPR)) { - unsigned int count = 2000; - while (inw (MFM_STATUS) & STAT_BSY) { - udelay (500); - if (!--count) - return 0; - } - - outw (CMD_RCAL, MFM_COMMAND); - } - return 1; -} - -static int mfm_do_init(unsigned char irqmask) -{ - int i, ret; - - printk("mfm: found at address %08X, interrupt %d\n", mfm_addr, mfm_irq); - - ret = -EBUSY; - if (!request_region (mfm_addr, 10, "mfm")) - goto out1; - - ret = register_blkdev(MAJOR_NR, "mfm"); - if (ret) - goto out2; - - /* Stuff for the assembler routines to get to */ - hdc63463_baseaddress = ioaddr(mfm_addr); - hdc63463_irqpolladdress = mfm_IRQPollLoc; - hdc63463_irqpollmask = irqmask; - - mfm_queue = blk_init_queue(do_mfm_request, &mfm_lock); - if (!mfm_queue) - goto out2a; - - Busy = 0; - lastspecifieddrive = -1; - - mfm_drives = mfm_initdrives(); - if (!mfm_drives) { - ret = -ENODEV; - goto out3; - } - - for (i = 0; i < mfm_drives; i++) { - struct gendisk *disk = alloc_disk(64); - if (!disk) - goto Enomem; - disk->major = MAJOR_NR; - disk->first_minor = i << 6; - disk->fops = &mfm_fops; - sprintf(disk->disk_name, "mfm%c", 'a'+i); - mfm_gendisk[i] = disk; - } - - printk("mfm: detected %d hard drive%s\n", mfm_drives, - mfm_drives == 1 ? "" : "s"); - ret = request_irq(mfm_irq, mfm_interrupt_handler, IRQF_DISABLED, "MFM harddisk", NULL); - if (ret) { - printk("mfm: unable to get IRQ%d\n", mfm_irq); - goto out4; - } - - if (mfm_irqenable) - outw(0x80, mfm_irqenable); /* Required to enable IRQs from MFM podule */ - - for (i = 0; i < mfm_drives; i++) { - mfm_geometry(i); - mfm_gendisk[i]->queue = mfm_queue; - add_disk(mfm_gendisk[i]); - } - return 0; - -out4: - for (i = 0; i < mfm_drives; i++) - put_disk(mfm_gendisk[i]); -out3: - blk_cleanup_queue(mfm_queue); -out2a: - unregister_blkdev(MAJOR_NR, "mfm"); -out2: - release_region(mfm_addr, 10); -out1: - return ret; -Enomem: - while (i--) - put_disk(mfm_gendisk[i]); - goto out3; -} - -static void mfm_do_exit(void) -{ - int i; - - free_irq(mfm_irq, NULL); - for (i = 0; i < mfm_drives; i++) { - del_gendisk(mfm_gendisk[i]); - put_disk(mfm_gendisk[i]); - } - blk_cleanup_queue(mfm_queue); - unregister_blkdev(MAJOR_NR, "mfm"); - if (mfm_addr) - release_region(mfm_addr, 10); -} - -static int __devinit mfm_probe(struct expansion_card *ec, struct ecard_id *id) -{ - if (mfm_addr) - return -EBUSY; - - mfm_addr = ecard_address(ec, ECARD_IOC, ECARD_MEDIUM) + 0x800; - mfm_IRQPollLoc = ioaddr(mfm_addr + 0x400); - mfm_irqenable = mfm_IRQPollLoc; - mfm_irq = ec->irq; - - return mfm_do_init(0x08); -} - -static void __devexit mfm_remove(struct expansion_card *ec) -{ - outw (0, mfm_irqenable); /* Required to enable IRQs from MFM podule */ - mfm_do_exit(); -} - -static const struct ecard_id mfm_cids[] = { - { MANU_ACORN, PROD_ACORN_MFM }, - { 0xffff, 0xffff }, -}; - -static struct ecard_driver mfm_driver = { - .probe = mfm_probe, - .remove = __devexit(mfm_remove), - .id_table = mfm_cids, - .drv = { - .name = "mfm", - }, -}; - -/* - * Look for a MFM controller - first check the motherboard, then the podules - * The podules have an extra interrupt enable that needs to be played with - * - * The HDC is accessed at MEDIUM IOC speeds. - */ -static int __init mfm_init (void) -{ - unsigned char irqmask; - - if (mfm_probecontroller(ONBOARD_MFM_ADDRESS)) { - mfm_addr = ONBOARD_MFM_ADDRESS; - mfm_IRQPollLoc = IOC_IRQSTATB; - mfm_irqenable = 0; - mfm_irq = IRQ_HARDDISK; - return mfm_do_init(0x08); /* IL3 pin */ - } else { - return ecard_register_driver(&mfm_driver); - } -} - -static void __exit mfm_exit(void) -{ - if (mfm_addr == ONBOARD_MFM_ADDRESS) - mfm_do_exit(); - else - ecard_unregister_driver(&mfm_driver); -} - -module_init(mfm_init) -module_exit(mfm_exit) -MODULE_LICENSE("GPL"); diff --git a/trunk/drivers/base/core.c b/trunk/drivers/base/core.c index 3599ab2506d2..e6738bcbe5a9 100644 --- a/trunk/drivers/base/core.c +++ b/trunk/drivers/base/core.c @@ -24,8 +24,6 @@ #include "base.h" #include "power/power.h" -extern const char *kobject_actions[]; - int (*platform_notify)(struct device * dev) = NULL; int (*platform_notify_remove)(struct device * dev) = NULL; @@ -680,8 +678,7 @@ static int device_add_class_symlinks(struct device *dev) if (error) goto out_subsys; } - /* only bus-device parents get a "device"-link */ - if (dev->parent && dev->parent->bus) { + if (dev->parent) { error = sysfs_create_link(&dev->kobj, &dev->parent->kobj, "device"); if (error) diff --git a/trunk/drivers/base/cpu.c b/trunk/drivers/base/cpu.c index fe7ef3394144..40545071e3c9 100644 --- a/trunk/drivers/base/cpu.c +++ b/trunk/drivers/base/cpu.c @@ -53,7 +53,7 @@ static ssize_t store_online(struct sys_device *dev, const char *buf, ret = count; return ret; } -static SYSDEV_ATTR(online, 0600, show_online, store_online); +static SYSDEV_ATTR(online, 0644, show_online, store_online); static void __devinit register_cpu_control(struct cpu *cpu) { diff --git a/trunk/drivers/base/firmware_class.c b/trunk/drivers/base/firmware_class.c index 53f0ee6f3016..b24efd4e3e3d 100644 --- a/trunk/drivers/base/firmware_class.c +++ b/trunk/drivers/base/firmware_class.c @@ -232,6 +232,7 @@ fw_realloc_buffer(struct firmware_priv *fw_priv, int min_size) /** * firmware_data_write - write method for firmware * @kobj: kobject for the device + * @bin_attr: bin_attr structure * @buffer: buffer being written * @offset: buffer offset for write in total data store area * @count: buffer size diff --git a/trunk/drivers/block/cciss.c b/trunk/drivers/block/cciss.c index 1be82d544dc3..a11b2bd54bbe 100644 --- a/trunk/drivers/block/cciss.c +++ b/trunk/drivers/block/cciss.c @@ -3227,12 +3227,15 @@ static int alloc_cciss_hba(void) for (i = 0; i < MAX_CTLR; i++) { if (!hba[i]) { ctlr_info_t *p; + p = kzalloc(sizeof(ctlr_info_t), GFP_KERNEL); if (!p) goto Enomem; p->gendisk[0] = alloc_disk(1 << NWD_SHIFT); - if (!p->gendisk[0]) + if (!p->gendisk[0]) { + kfree(p); goto Enomem; + } hba[i] = p; return i; } diff --git a/trunk/drivers/char/ip2/ip2main.c b/trunk/drivers/char/ip2/ip2main.c index 6005b5225772..8d74b8745e60 100644 --- a/trunk/drivers/char/ip2/ip2main.c +++ b/trunk/drivers/char/ip2/ip2main.c @@ -500,7 +500,6 @@ ip2_loadmain(int *iop, int *irqp, unsigned char *firmware, int firmsize) { int i, j, box; int err = 0; - int status = 0; static int loaded; i2eBordStrPtr pB = NULL; int rc = -1; @@ -588,6 +587,8 @@ ip2_loadmain(int *iop, int *irqp, unsigned char *firmware, int firmsize) case PCI: #ifdef CONFIG_PCI { + int status; + pci_dev_i = pci_get_device(PCI_VENDOR_ID_COMPUTONE, PCI_DEVICE_ID_COMPUTONE_IP2EX, pci_dev_i); if (pci_dev_i != NULL) { diff --git a/trunk/drivers/char/ipmi/ipmi_si_intf.c b/trunk/drivers/char/ipmi/ipmi_si_intf.c index 4edfdda0cf99..96d2f9ee42d6 100644 --- a/trunk/drivers/char/ipmi/ipmi_si_intf.c +++ b/trunk/drivers/char/ipmi/ipmi_si_intf.c @@ -2050,6 +2050,7 @@ static __devinit void try_init_dmi(struct dmi_ipmi_data *ipmi_data) info->si_type = SI_BT; break; default: + kfree(info); return; } diff --git a/trunk/drivers/char/synclink_gt.c b/trunk/drivers/char/synclink_gt.c index 372a37e25620..bbb7f1292665 100644 --- a/trunk/drivers/char/synclink_gt.c +++ b/trunk/drivers/char/synclink_gt.c @@ -1,5 +1,5 @@ /* - * $Id: synclink_gt.c,v 4.36 2006/08/28 20:47:14 paulkf Exp $ + * $Id: synclink_gt.c,v 4.50 2007/07/25 19:29:25 paulkf Exp $ * * Device driver for Microgate SyncLink GT serial adapters. * @@ -93,7 +93,7 @@ * module identification */ static char *driver_name = "SyncLink GT"; -static char *driver_version = "$Revision: 4.36 $"; +static char *driver_version = "$Revision: 4.50 $"; static char *tty_driver_name = "synclink_gt"; static char *tty_dev_prefix = "ttySLG"; MODULE_LICENSE("GPL"); @@ -477,6 +477,7 @@ static void tx_set_idle(struct slgt_info *info); static unsigned int free_tbuf_count(struct slgt_info *info); static void reset_tbufs(struct slgt_info *info); static void tdma_reset(struct slgt_info *info); +static void tdma_start(struct slgt_info *info); static void tx_load(struct slgt_info *info, const char *buf, unsigned int count); static void get_signals(struct slgt_info *info); @@ -904,6 +905,8 @@ static int write(struct tty_struct *tty, spin_lock_irqsave(&info->lock,flags); if (!info->tx_active) tx_start(info); + else + tdma_start(info); spin_unlock_irqrestore(&info->lock,flags); } @@ -3871,44 +3874,58 @@ static void tx_start(struct slgt_info *info) slgt_irq_on(info, IRQ_TXUNDER + IRQ_TXIDLE); /* clear tx idle and underrun status bits */ wr_reg16(info, SSR, (unsigned short)(IRQ_TXIDLE + IRQ_TXUNDER)); - - if (!(rd_reg32(info, TDCSR) & BIT0)) { - /* tx DMA stopped, restart tx DMA */ - tdma_reset(info); - /* set 1st descriptor address */ - wr_reg32(info, TDDAR, info->tbufs[info->tbuf_start].pdesc); - switch(info->params.mode) { - case MGSL_MODE_RAW: - case MGSL_MODE_MONOSYNC: - case MGSL_MODE_BISYNC: - wr_reg32(info, TDCSR, BIT2 + BIT0); /* IRQ + DMA enable */ - break; - default: - wr_reg32(info, TDCSR, BIT0); /* DMA enable */ - } - } - if (info->params.mode == MGSL_MODE_HDLC) mod_timer(&info->tx_timer, jiffies + msecs_to_jiffies(5000)); } else { - tdma_reset(info); - /* set 1st descriptor address */ - wr_reg32(info, TDDAR, info->tbufs[info->tbuf_start].pdesc); - slgt_irq_off(info, IRQ_TXDATA); slgt_irq_on(info, IRQ_TXIDLE); /* clear tx idle status bit */ wr_reg16(info, SSR, IRQ_TXIDLE); - - /* enable tx DMA */ - wr_reg32(info, TDCSR, BIT0); } - + tdma_start(info); info->tx_active = 1; } } +/* + * start transmit DMA if inactive and there are unsent buffers + */ +static void tdma_start(struct slgt_info *info) +{ + unsigned int i; + + if (rd_reg32(info, TDCSR) & BIT0) + return; + + /* transmit DMA inactive, check for unsent buffers */ + i = info->tbuf_start; + while (!desc_count(info->tbufs[i])) { + if (++i == info->tbuf_count) + i = 0; + if (i == info->tbuf_current) + return; + } + info->tbuf_start = i; + + /* there are unsent buffers, start transmit DMA */ + + /* reset needed if previous error condition */ + tdma_reset(info); + + /* set 1st descriptor address */ + wr_reg32(info, TDDAR, info->tbufs[info->tbuf_start].pdesc); + switch(info->params.mode) { + case MGSL_MODE_RAW: + case MGSL_MODE_MONOSYNC: + case MGSL_MODE_BISYNC: + wr_reg32(info, TDCSR, BIT2 + BIT0); /* IRQ + DMA enable */ + break; + default: + wr_reg32(info, TDCSR, BIT0); /* DMA enable */ + } +} + static void tx_stop(struct slgt_info *info) { unsigned short val; @@ -4642,8 +4659,8 @@ static unsigned int free_tbuf_count(struct slgt_info *info) i=0; } while (i != info->tbuf_current); - /* last buffer with zero count may be in use, assume it is */ - if (count) + /* if tx DMA active, last zero count buffer is in use */ + if (count && (rd_reg32(info, TDCSR) & BIT0)) --count; return count; diff --git a/trunk/drivers/ide/Kconfig b/trunk/drivers/ide/Kconfig index b1a9b81c211f..e049f65bc3a2 100644 --- a/trunk/drivers/ide/Kconfig +++ b/trunk/drivers/ide/Kconfig @@ -833,7 +833,7 @@ config BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ depends on BLK_DEV_IDE_AU1XXX config IDE_ARM - def_bool ARM && (ARCH_A5K || ARCH_CLPS7500 || ARCH_RPC || ARCH_SHARK) + def_bool ARM && (ARCH_CLPS7500 || ARCH_RPC || ARCH_SHARK) config BLK_DEV_IDE_ICSIDE tristate "ICS IDE interface support" diff --git a/trunk/drivers/ide/arm/ide_arm.c b/trunk/drivers/ide/arm/ide_arm.c index a3d6744e870a..bce2bec81413 100644 --- a/trunk/drivers/ide/arm/ide_arm.c +++ b/trunk/drivers/ide/arm/ide_arm.c @@ -1,5 +1,5 @@ /* - * ARM/ARM26 default IDE host driver + * ARM default IDE host driver * * Copyright (C) 2004 Bartlomiej Zolnierkiewicz * Based on code by: Russell King, Ian Molton and Alexander Schulz. @@ -14,12 +14,6 @@ #include #include -#ifdef CONFIG_ARM26 -# define IDE_ARM_HOST (machine_is_a5k()) -#else -# define IDE_ARM_HOST (1) -#endif - #ifdef CONFIG_ARCH_CLPS7500 # include # @@ -32,12 +26,10 @@ void __init ide_arm_init(void) { - if (IDE_ARM_HOST) { - hw_regs_t hw; + hw_regs_t hw; - memset(&hw, 0, sizeof(hw)); - ide_std_init_ports(&hw, IDE_ARM_IO, IDE_ARM_IO + 0x206); - hw.irq = IDE_ARM_IRQ; - ide_register_hw(&hw, 1, NULL); - } + memset(&hw, 0, sizeof(hw)); + ide_std_init_ports(&hw, IDE_ARM_IO, IDE_ARM_IO + 0x206); + hw.irq = IDE_ARM_IRQ; + ide_register_hw(&hw, 1, NULL); } diff --git a/trunk/drivers/infiniband/hw/amso1100/c2_qp.c b/trunk/drivers/infiniband/hw/amso1100/c2_qp.c index 420c1380f5c3..01d07862ea86 100644 --- a/trunk/drivers/infiniband/hw/amso1100/c2_qp.c +++ b/trunk/drivers/infiniband/hw/amso1100/c2_qp.c @@ -506,6 +506,7 @@ int c2_alloc_qp(struct c2_dev *c2dev, qp->send_sgl_depth = qp_attrs->cap.max_send_sge; qp->rdma_write_sgl_depth = qp_attrs->cap.max_send_sge; qp->recv_sgl_depth = qp_attrs->cap.max_recv_sge; + init_waitqueue_head(&qp->wait); /* Initialize the SQ MQ */ q_size = be32_to_cpu(reply->sq_depth); diff --git a/trunk/drivers/infiniband/hw/ehca/ehca_classes.h b/trunk/drivers/infiniband/hw/ehca/ehca_classes.h index 3725aa8664d9..b5e960305316 100644 --- a/trunk/drivers/infiniband/hw/ehca/ehca_classes.h +++ b/trunk/drivers/infiniband/hw/ehca/ehca_classes.h @@ -322,6 +322,7 @@ extern int ehca_static_rate; extern int ehca_port_act_time; extern int ehca_use_hp_mr; extern int ehca_scaling_code; +extern int ehca_mr_largepage; struct ipzu_queue_resp { u32 qe_size; /* queue entry size */ diff --git a/trunk/drivers/infiniband/hw/ehca/ehca_irq.c b/trunk/drivers/infiniband/hw/ehca/ehca_irq.c index 71c0799b3500..ee06d8bd7396 100644 --- a/trunk/drivers/infiniband/hw/ehca/ehca_irq.c +++ b/trunk/drivers/infiniband/hw/ehca/ehca_irq.c @@ -116,7 +116,7 @@ static void print_error_data(struct ehca_shca *shca, void *data, } default: ehca_err(&shca->ib_device, - "Unknown errror type: %lx on %s.", + "Unknown error type: %lx on %s.", type, shca->ib_device.name); break; } diff --git a/trunk/drivers/infiniband/hw/ehca/ehca_mrmw.c b/trunk/drivers/infiniband/hw/ehca/ehca_mrmw.c index c1b868b79d67..d97eda3e1da0 100644 --- a/trunk/drivers/infiniband/hw/ehca/ehca_mrmw.c +++ b/trunk/drivers/infiniband/hw/ehca/ehca_mrmw.c @@ -40,10 +40,10 @@ * POSSIBILITY OF SUCH DAMAGE. */ -#include - #include +#include + #include "ehca_iverbs.h" #include "ehca_mrmw.h" #include "hcp_if.h" @@ -64,8 +64,6 @@ enum ehca_mr_pgsize { EHCA_MR_PGSIZE16M = 0x1000000L }; -extern int ehca_mr_largepage; - static u32 ehca_encode_hwpage_size(u32 pgsize) { u32 idx = 0; diff --git a/trunk/drivers/infiniband/hw/ehca/ehca_pd.c b/trunk/drivers/infiniband/hw/ehca/ehca_pd.c index 3dafd7ff36cd..43bcf085fcf2 100644 --- a/trunk/drivers/infiniband/hw/ehca/ehca_pd.c +++ b/trunk/drivers/infiniband/hw/ehca/ehca_pd.c @@ -88,7 +88,6 @@ int ehca_dealloc_pd(struct ib_pd *pd) u32 cur_pid = current->tgid; struct ehca_pd *my_pd = container_of(pd, struct ehca_pd, ib_pd); int i, leftovers = 0; - extern struct kmem_cache *small_qp_cache; struct ipz_small_queue_page *page, *tmp; if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && diff --git a/trunk/drivers/infiniband/hw/ehca/hcp_if.c b/trunk/drivers/infiniband/hw/ehca/hcp_if.c index fdbfebea7d11..24f454162f24 100644 --- a/trunk/drivers/infiniband/hw/ehca/hcp_if.c +++ b/trunk/drivers/infiniband/hw/ehca/hcp_if.c @@ -758,7 +758,6 @@ u64 hipz_h_register_rpage_mr(const struct ipz_adapter_handle adapter_handle, const u64 logical_address_of_page, const u64 count) { - extern int ehca_debug_level; u64 ret; if (unlikely(ehca_debug_level >= 2)) { diff --git a/trunk/drivers/infiniband/hw/ehca/ipz_pt_fn.h b/trunk/drivers/infiniband/hw/ehca/ipz_pt_fn.h index c6937a044e8a..a801274ea337 100644 --- a/trunk/drivers/infiniband/hw/ehca/ipz_pt_fn.h +++ b/trunk/drivers/infiniband/hw/ehca/ipz_pt_fn.h @@ -54,6 +54,8 @@ struct ehca_pd; struct ipz_small_queue_page; +extern struct kmem_cache *small_qp_cache; + /* struct generic ehca page */ struct ipz_page { u8 entries[EHCA_PAGESIZE]; diff --git a/trunk/drivers/infiniband/hw/ipath/ipath_common.h b/trunk/drivers/infiniband/hw/ipath/ipath_common.h index b4b786d0dfca..6ad822c35930 100644 --- a/trunk/drivers/infiniband/hw/ipath/ipath_common.h +++ b/trunk/drivers/infiniband/hw/ipath/ipath_common.h @@ -100,8 +100,7 @@ struct infinipath_stats { __u64 sps_hwerrs; /* number of times IB link changed state unexpectedly */ __u64 sps_iblink; - /* kernel receive interrupts that didn't read intstat */ - __u64 sps_fastrcvint; + __u64 sps_unused; /* was fastrcvint, no longer implemented */ /* number of kernel (port0) packets received */ __u64 sps_port0pkts; /* number of "ethernet" packets sent by driver */ diff --git a/trunk/drivers/infiniband/hw/ipath/ipath_driver.c b/trunk/drivers/infiniband/hw/ipath/ipath_driver.c index 09c5fd84b1e3..6ccba365a24c 100644 --- a/trunk/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/trunk/drivers/infiniband/hw/ipath/ipath_driver.c @@ -740,7 +740,7 @@ void ipath_disarm_piobufs(struct ipath_devdata *dd, unsigned first, * pioavail updates to memory to stop. */ ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, - sendorig & ~IPATH_S_PIOBUFAVAILUPD); + sendorig & ~INFINIPATH_S_PIOBUFAVAILUPD); sendorig = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, dd->ipath_sendctrl); @@ -1614,7 +1614,7 @@ int ipath_waitfor_mdio_cmdready(struct ipath_devdata *dd) * it's safer to always do it. * PIOAvail bits are updated by the chip as if normal send had happened. */ -void ipath_cancel_sends(struct ipath_devdata *dd) +void ipath_cancel_sends(struct ipath_devdata *dd, int restore_sendctrl) { ipath_dbg("Cancelling all in-progress send buffers\n"); dd->ipath_lastcancel = jiffies+HZ/2; /* skip armlaunch errs a bit */ @@ -1627,6 +1627,9 @@ void ipath_cancel_sends(struct ipath_devdata *dd) ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); ipath_disarm_piobufs(dd, 0, (unsigned)(dd->ipath_piobcnt2k + dd->ipath_piobcnt4k)); + if (restore_sendctrl) /* else done by caller later */ + ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, + dd->ipath_sendctrl); /* and again, be sure all have hit the chip */ ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); @@ -1655,7 +1658,7 @@ static void ipath_set_ib_lstate(struct ipath_devdata *dd, int which) /* flush all queued sends when going to DOWN or INIT, to be sure that * they don't block MAD packets */ if (!linkcmd || linkcmd == INFINIPATH_IBCC_LINKCMD_INIT) - ipath_cancel_sends(dd); + ipath_cancel_sends(dd, 1); ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, dd->ipath_ibcctrl | which); @@ -2000,7 +2003,7 @@ void ipath_shutdown_device(struct ipath_devdata *dd) ipath_set_ib_lstate(dd, INFINIPATH_IBCC_LINKINITCMD_DISABLE << INFINIPATH_IBCC_LINKINITCMD_SHIFT); - ipath_cancel_sends(dd); + ipath_cancel_sends(dd, 0); /* disable IBC */ dd->ipath_control &= ~INFINIPATH_C_LINKENABLE; diff --git a/trunk/drivers/infiniband/hw/ipath/ipath_iba6120.c b/trunk/drivers/infiniband/hw/ipath/ipath_iba6120.c index 9868ccda5f26..5b6ac9a1a709 100644 --- a/trunk/drivers/infiniband/hw/ipath/ipath_iba6120.c +++ b/trunk/drivers/infiniband/hw/ipath/ipath_iba6120.c @@ -321,6 +321,8 @@ static const struct ipath_hwerror_msgs ipath_6120_hwerror_msgs[] = { << INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT) static int ipath_pe_txe_recover(struct ipath_devdata *); +static void ipath_pe_put_tid_2(struct ipath_devdata *, u64 __iomem *, + u32, unsigned long); /** * ipath_pe_handle_hwerrors - display hardware errors. @@ -555,8 +557,11 @@ static int ipath_pe_boardname(struct ipath_devdata *dd, char *name, ipath_dev_err(dd, "Unsupported InfiniPath hardware revision %u.%u!\n", dd->ipath_majrev, dd->ipath_minrev); ret = 1; - } else + } else { ret = 0; + if (dd->ipath_minrev >= 2) + dd->ipath_f_put_tid = ipath_pe_put_tid_2; + } return ret; } @@ -1220,7 +1225,7 @@ static void ipath_pe_clear_tids(struct ipath_devdata *dd, unsigned port) port * dd->ipath_rcvtidcnt * sizeof(*tidbase)); for (i = 0; i < dd->ipath_rcvtidcnt; i++) - ipath_pe_put_tid(dd, &tidbase[i], RCVHQ_RCV_TYPE_EXPECTED, + dd->ipath_f_put_tid(dd, &tidbase[i], RCVHQ_RCV_TYPE_EXPECTED, tidinv); tidbase = (u64 __iomem *) @@ -1229,7 +1234,7 @@ static void ipath_pe_clear_tids(struct ipath_devdata *dd, unsigned port) port * dd->ipath_rcvegrcnt * sizeof(*tidbase)); for (i = 0; i < dd->ipath_rcvegrcnt; i++) - ipath_pe_put_tid(dd, &tidbase[i], RCVHQ_RCV_TYPE_EAGER, + dd->ipath_f_put_tid(dd, &tidbase[i], RCVHQ_RCV_TYPE_EAGER, tidinv); } @@ -1395,10 +1400,11 @@ void ipath_init_iba6120_funcs(struct ipath_devdata *dd) dd->ipath_f_quiet_serdes = ipath_pe_quiet_serdes; dd->ipath_f_bringup_serdes = ipath_pe_bringup_serdes; dd->ipath_f_clear_tids = ipath_pe_clear_tids; - if (dd->ipath_minrev >= 2) - dd->ipath_f_put_tid = ipath_pe_put_tid_2; - else - dd->ipath_f_put_tid = ipath_pe_put_tid; + /* + * this may get changed after we read the chip revision, + * but we start with the safe version for all revs + */ + dd->ipath_f_put_tid = ipath_pe_put_tid; dd->ipath_f_cleanup = ipath_setup_pe_cleanup; dd->ipath_f_setextled = ipath_setup_pe_setextled; dd->ipath_f_get_base_info = ipath_pe_get_base_info; diff --git a/trunk/drivers/infiniband/hw/ipath/ipath_init_chip.c b/trunk/drivers/infiniband/hw/ipath/ipath_init_chip.c index 49951d583804..9dd0bacf8461 100644 --- a/trunk/drivers/infiniband/hw/ipath/ipath_init_chip.c +++ b/trunk/drivers/infiniband/hw/ipath/ipath_init_chip.c @@ -782,7 +782,7 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) * Follows early_init because some chips have to initialize * PIO buffers in early_init to avoid false parity errors. */ - ipath_cancel_sends(dd); + ipath_cancel_sends(dd, 0); /* early_init sets rcvhdrentsize and rcvhdrsize, so this must be * done after early_init */ @@ -851,13 +851,14 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, dd->ipath_hwerrmask); - dd->ipath_maskederrs = dd->ipath_ignorederrs; /* clear all */ ipath_write_kreg(dd, dd->ipath_kregs->kr_errorclear, -1LL); /* enable errors that are masked, at least this first time. */ ipath_write_kreg(dd, dd->ipath_kregs->kr_errormask, ~dd->ipath_maskederrs); - /* clear any interrups up to this point (ints still not enabled) */ + dd->ipath_errormask = ipath_read_kreg64(dd, + dd->ipath_kregs->kr_errormask); + /* clear any interrupts up to this point (ints still not enabled) */ ipath_write_kreg(dd, dd->ipath_kregs->kr_intclear, -1LL); /* diff --git a/trunk/drivers/infiniband/hw/ipath/ipath_intr.c b/trunk/drivers/infiniband/hw/ipath/ipath_intr.c index 1fd91c59f246..b29fe7e9b11a 100644 --- a/trunk/drivers/infiniband/hw/ipath/ipath_intr.c +++ b/trunk/drivers/infiniband/hw/ipath/ipath_intr.c @@ -303,7 +303,7 @@ static void handle_e_ibstatuschanged(struct ipath_devdata *dd, * Flush all queued sends when link went to DOWN or INIT, * to be sure that they don't block SMA and other MAD packets */ - ipath_cancel_sends(dd); + ipath_cancel_sends(dd, 1); } else if (lstate == IPATH_IBSTATE_INIT || lstate == IPATH_IBSTATE_ARM || lstate == IPATH_IBSTATE_ACTIVE) { @@ -517,10 +517,7 @@ static int handle_errors(struct ipath_devdata *dd, ipath_err_t errs) supp_msgs = handle_frequent_errors(dd, errs, msg, &noprint); - /* - * don't report errors that are masked (includes those always - * ignored) - */ + /* don't report errors that are masked */ errs &= ~dd->ipath_maskederrs; /* do these first, they are most important */ @@ -566,19 +563,19 @@ static int handle_errors(struct ipath_devdata *dd, ipath_err_t errs) * ones on this particular interrupt, which also isn't great */ dd->ipath_maskederrs |= dd->ipath_lasterror | errs; + dd->ipath_errormask &= ~dd->ipath_maskederrs; ipath_write_kreg(dd, dd->ipath_kregs->kr_errormask, - ~dd->ipath_maskederrs); + dd->ipath_errormask); s_iserr = ipath_decode_err(msg, sizeof msg, - (dd->ipath_maskederrs & ~dd-> - ipath_ignorederrs)); + dd->ipath_maskederrs); - if ((dd->ipath_maskederrs & ~dd->ipath_ignorederrs) & + if (dd->ipath_maskederrs & ~(INFINIPATH_E_RRCVEGRFULL | INFINIPATH_E_RRCVHDRFULL | INFINIPATH_E_PKTERRS)) ipath_dev_err(dd, "Temporarily disabling " "error(s) %llx reporting; too frequent (%s)\n", - (unsigned long long) (dd->ipath_maskederrs & - ~dd->ipath_ignorederrs), msg); + (unsigned long long)dd->ipath_maskederrs, + msg); else { /* * rcvegrfull and rcvhdrqfull are "normal", @@ -793,19 +790,22 @@ void ipath_clear_freeze(struct ipath_devdata *dd) /* disable error interrupts, to avoid confusion */ ipath_write_kreg(dd, dd->ipath_kregs->kr_errormask, 0ULL); + /* also disable interrupts; errormask is sometimes overwriten */ + ipath_write_kreg(dd, dd->ipath_kregs->kr_intmask, 0ULL); + /* * clear all sends, because they have may been * completed by usercode while in freeze mode, and * therefore would not be sent, and eventually * might cause the process to run out of bufs */ - ipath_cancel_sends(dd); + ipath_cancel_sends(dd, 0); ipath_write_kreg(dd, dd->ipath_kregs->kr_control, dd->ipath_control); /* ensure pio avail updates continue */ ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, - dd->ipath_sendctrl & ~IPATH_S_PIOBUFAVAILUPD); + dd->ipath_sendctrl & ~INFINIPATH_S_PIOBUFAVAILUPD); ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, dd->ipath_sendctrl); @@ -817,7 +817,7 @@ void ipath_clear_freeze(struct ipath_devdata *dd) for (i = 0; i < dd->ipath_pioavregs; i++) { /* deal with 6110 chip bug */ im = i > 3 ? ((i&1) ? i-1 : i+1) : i; - val = ipath_read_kreg64(dd, 0x1000+(im*sizeof(u64))); + val = ipath_read_kreg64(dd, (0x1000/sizeof(u64))+im); dd->ipath_pioavailregs_dma[i] = dd->ipath_pioavailshadow[i] = le64_to_cpu(val); } @@ -832,7 +832,8 @@ void ipath_clear_freeze(struct ipath_devdata *dd) ipath_write_kreg(dd, dd->ipath_kregs->kr_errorclear, E_SPKT_ERRS_IGNORE); ipath_write_kreg(dd, dd->ipath_kregs->kr_errormask, - ~dd->ipath_maskederrs); + dd->ipath_errormask); + ipath_write_kreg(dd, dd->ipath_kregs->kr_intmask, -1LL); ipath_write_kreg(dd, dd->ipath_kregs->kr_intclear, 0ULL); } @@ -1002,7 +1003,6 @@ irqreturn_t ipath_intr(int irq, void *data) u32 istat, chk0rcv = 0; ipath_err_t estat = 0; irqreturn_t ret; - u32 oldhead, curtail; static unsigned unexpected = 0; static const u32 port0rbits = (1U<ipath_port0head; - curtail = (u32)le64_to_cpu(*dd->ipath_hdrqtailptr); - if (oldhead != curtail) { - if (dd->ipath_flags & IPATH_GPIO_INTR) { - ipath_write_kreg(dd, dd->ipath_kregs->kr_gpio_clear, - (u64) (1 << IPATH_GPIO_PORT0_BIT)); - istat = port0rbits | INFINIPATH_I_GPIO; - } - else - istat = port0rbits; - ipath_write_kreg(dd, dd->ipath_kregs->kr_intclear, istat); - ipath_kreceive(dd); - if (oldhead != dd->ipath_port0head) { - ipath_stats.sps_fastrcvint++; - goto done; - } - } - istat = ipath_read_kreg32(dd, dd->ipath_kregs->kr_intstatus); if (unlikely(!istat)) { @@ -1225,7 +1195,6 @@ irqreturn_t ipath_intr(int irq, void *data) handle_layer_pioavail(dd); } -done: ret = IRQ_HANDLED; bail: diff --git a/trunk/drivers/infiniband/hw/ipath/ipath_kernel.h b/trunk/drivers/infiniband/hw/ipath/ipath_kernel.h index ace63ef78e6f..7a7966f7e4ff 100644 --- a/trunk/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/trunk/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -261,18 +261,10 @@ struct ipath_devdata { * limiting of hwerror reporting */ ipath_err_t ipath_lasthwerror; - /* - * errors masked because they occur too fast, also includes errors - * that are always ignored (ipath_ignorederrs) - */ + /* errors masked because they occur too fast */ ipath_err_t ipath_maskederrs; /* time in jiffies at which to re-enable maskederrs */ unsigned long ipath_unmasktime; - /* - * errors always ignored (masked), at least for a given - * chip/device, because they are wrong or not useful - */ - ipath_err_t ipath_ignorederrs; /* count of egrfull errors, combined for all ports */ u64 ipath_last_tidfull; /* for ipath_qcheck() */ @@ -436,6 +428,7 @@ struct ipath_devdata { u64 ipath_lastibcstat; /* hwerrmask shadow */ ipath_err_t ipath_hwerrmask; + ipath_err_t ipath_errormask; /* errormask shadow */ /* interrupt config reg shadow */ u64 ipath_intconfig; /* kr_sendpiobufbase value */ @@ -683,7 +676,7 @@ int ipath_unordered_wc(void); void ipath_disarm_piobufs(struct ipath_devdata *, unsigned first, unsigned cnt); -void ipath_cancel_sends(struct ipath_devdata *); +void ipath_cancel_sends(struct ipath_devdata *, int); int ipath_create_rcvhdrq(struct ipath_devdata *, struct ipath_portdata *); void ipath_free_pddata(struct ipath_devdata *, struct ipath_portdata *); diff --git a/trunk/drivers/infiniband/hw/ipath/ipath_stats.c b/trunk/drivers/infiniband/hw/ipath/ipath_stats.c index 73ed17d03188..bae4f56f7271 100644 --- a/trunk/drivers/infiniband/hw/ipath/ipath_stats.c +++ b/trunk/drivers/infiniband/hw/ipath/ipath_stats.c @@ -196,6 +196,45 @@ static void ipath_qcheck(struct ipath_devdata *dd) } } +static void ipath_chk_errormask(struct ipath_devdata *dd) +{ + static u32 fixed; + u32 ctrl; + unsigned long errormask; + unsigned long hwerrs; + + if (!dd->ipath_errormask || !(dd->ipath_flags & IPATH_INITTED)) + return; + + errormask = ipath_read_kreg64(dd, dd->ipath_kregs->kr_errormask); + + if (errormask == dd->ipath_errormask) + return; + fixed++; + + hwerrs = ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwerrstatus); + ctrl = ipath_read_kreg32(dd, dd->ipath_kregs->kr_control); + + ipath_write_kreg(dd, dd->ipath_kregs->kr_errormask, + dd->ipath_errormask); + + if ((hwerrs & dd->ipath_hwerrmask) || + (ctrl & INFINIPATH_C_FREEZEMODE)) { + /* force re-interrupt of pending events, just in case */ + ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrclear, 0ULL); + ipath_write_kreg(dd, dd->ipath_kregs->kr_errorclear, 0ULL); + ipath_write_kreg(dd, dd->ipath_kregs->kr_intclear, 0ULL); + dev_info(&dd->pcidev->dev, + "errormask fixed(%u) %lx -> %lx, ctrl %x hwerr %lx\n", + fixed, errormask, (unsigned long)dd->ipath_errormask, + ctrl, hwerrs); + } else + ipath_dbg("errormask fixed(%u) %lx -> %lx, no freeze\n", + fixed, errormask, + (unsigned long)dd->ipath_errormask); +} + + /** * ipath_get_faststats - get word counters from chip before they overflow * @opaque - contains a pointer to the infinipath device ipath_devdata @@ -251,14 +290,13 @@ void ipath_get_faststats(unsigned long opaque) dd->ipath_lasterror = 0; if (dd->ipath_lasthwerror) dd->ipath_lasthwerror = 0; - if ((dd->ipath_maskederrs & ~dd->ipath_ignorederrs) + if (dd->ipath_maskederrs && time_after(jiffies, dd->ipath_unmasktime)) { char ebuf[256]; int iserr; iserr = ipath_decode_err(ebuf, sizeof ebuf, - (dd->ipath_maskederrs & ~dd-> - ipath_ignorederrs)); - if ((dd->ipath_maskederrs & ~dd->ipath_ignorederrs) & + dd->ipath_maskederrs); + if (dd->ipath_maskederrs & ~(INFINIPATH_E_RRCVEGRFULL | INFINIPATH_E_RRCVHDRFULL | INFINIPATH_E_PKTERRS )) ipath_dev_err(dd, "Re-enabling masked errors " @@ -278,9 +316,12 @@ void ipath_get_faststats(unsigned long opaque) ipath_cdbg(ERRPKT, "Re-enabling packet" " problem interrupt (%s)\n", ebuf); } - dd->ipath_maskederrs = dd->ipath_ignorederrs; + + /* re-enable masked errors */ + dd->ipath_errormask |= dd->ipath_maskederrs; ipath_write_kreg(dd, dd->ipath_kregs->kr_errormask, - ~dd->ipath_maskederrs); + dd->ipath_errormask); + dd->ipath_maskederrs = 0; } /* limit qfull messages to ~one per minute per port */ @@ -294,6 +335,7 @@ void ipath_get_faststats(unsigned long opaque) } } + ipath_chk_errormask(dd); done: mod_timer(&dd->ipath_stats_timer, jiffies + HZ * 5); } diff --git a/trunk/drivers/infiniband/hw/mlx4/qp.c b/trunk/drivers/infiniband/hw/mlx4/qp.c index f6315dfb213e..ba0428d872aa 100644 --- a/trunk/drivers/infiniband/hw/mlx4/qp.c +++ b/trunk/drivers/infiniband/hw/mlx4/qp.c @@ -1209,7 +1209,6 @@ static void set_datagram_seg(struct mlx4_wqe_datagram_seg *dseg, memcpy(dseg->av, &to_mah(wr->wr.ud.ah)->av, sizeof (struct mlx4_av)); dseg->dqpn = cpu_to_be32(wr->wr.ud.remote_qpn); dseg->qkey = cpu_to_be32(wr->wr.ud.remote_qkey); - } static void set_data_seg(struct mlx4_wqe_data_seg *dseg, diff --git a/trunk/drivers/isdn/divert/divert_procfs.c b/trunk/drivers/isdn/divert/divert_procfs.c index be77ee625bb7..559a0d0244cf 100644 --- a/trunk/drivers/isdn/divert/divert_procfs.c +++ b/trunk/drivers/isdn/divert/divert_procfs.c @@ -70,6 +70,8 @@ put_info_buffer(char *cp) wake_up_interruptible(&(rd_queue)); } /* put_info_buffer */ +#ifdef CONFIG_PROC_FS + /**********************************/ /* deflection device read routine */ /**********************************/ @@ -253,8 +255,6 @@ isdn_divert_ioctl(struct inode *inode, struct file *file, return copy_to_user((void __user *)arg, &dioctl, sizeof(dioctl)) ? -EFAULT : 0; } /* isdn_divert_ioctl */ - -#ifdef CONFIG_PROC_FS static const struct file_operations isdn_fops = { .owner = THIS_MODULE, diff --git a/trunk/drivers/md/raid10.c b/trunk/drivers/md/raid10.c index f730a144baf1..4e53792aa520 100644 --- a/trunk/drivers/md/raid10.c +++ b/trunk/drivers/md/raid10.c @@ -917,6 +917,13 @@ static int make_request(struct request_queue *q, struct bio * bio) bio_list_add(&bl, mbio); } + if (unlikely(!atomic_read(&r10_bio->remaining))) { + /* the array is dead */ + md_write_end(mddev); + raid_end_bio_io(r10_bio); + return 0; + } + bitmap_startwrite(mddev->bitmap, bio->bi_sector, r10_bio->sectors, 0); spin_lock_irqsave(&conf->device_lock, flags); bio_list_merge(&conf->pending_bio_list, &bl); @@ -1557,7 +1564,6 @@ static void raid10d(mddev_t *mddev) bio = r10_bio->devs[r10_bio->read_slot].bio; r10_bio->devs[r10_bio->read_slot].bio = mddev->ro ? IO_BLOCKED : NULL; - bio_put(bio); mirror = read_balance(conf, r10_bio); if (mirror == -1) { printk(KERN_ALERT "raid10: %s: unrecoverable I/O" @@ -1565,8 +1571,10 @@ static void raid10d(mddev_t *mddev) bdevname(bio->bi_bdev,b), (unsigned long long)r10_bio->sector); raid_end_bio_io(r10_bio); + bio_put(bio); } else { const int do_sync = bio_sync(r10_bio->master_bio); + bio_put(bio); rdev = conf->mirrors[mirror].rdev; if (printk_ratelimit()) printk(KERN_ERR "raid10: %s: redirecting sector %llu to" diff --git a/trunk/drivers/media/dvb/dvb-usb/af9005-fe.c b/trunk/drivers/media/dvb/dvb-usb/af9005-fe.c index 7195c9461524..b1a9c4cdec93 100644 --- a/trunk/drivers/media/dvb/dvb-usb/af9005-fe.c +++ b/trunk/drivers/media/dvb/dvb-usb/af9005-fe.c @@ -29,8 +29,6 @@ struct af9005_fe_state { struct dvb_usb_device *d; - struct dvb_frontend *tuner; - fe_status_t stat; /* retraining parameters */ @@ -345,8 +343,8 @@ static int af9005_reset_pre_viterbi(struct dvb_frontend *fe) 1 & 0xff); if (ret) return ret; - af9005_write_ofdm_register(state->d, xd_p_fec_super_frm_unit_15_8, - 1 >> 8); + ret = af9005_write_ofdm_register(state->d, xd_p_fec_super_frm_unit_15_8, + 1 >> 8); if (ret) return ret; /* reset pre viterbi error count */ @@ -447,7 +445,7 @@ static int af9005_fe_read_status(struct dvb_frontend *fe, fe_status_t * stat) u8 temp; int ret; - if (state->tuner == NULL) + if (fe->ops.tuner_ops.release == NULL) return -ENODEV; *stat = 0; @@ -493,7 +491,7 @@ static int af9005_fe_read_status(struct dvb_frontend *fe, fe_status_t * stat) static int af9005_fe_read_ber(struct dvb_frontend *fe, u32 * ber) { struct af9005_fe_state *state = fe->demodulator_priv; - if (state->tuner == NULL) + if (fe->ops.tuner_ops.release == NULL) return -ENODEV; af9005_fe_refresh_state(fe); *ber = state->ber; @@ -503,7 +501,7 @@ static int af9005_fe_read_ber(struct dvb_frontend *fe, u32 * ber) static int af9005_fe_read_unc_blocks(struct dvb_frontend *fe, u32 * unc) { struct af9005_fe_state *state = fe->demodulator_priv; - if (state->tuner == NULL) + if (fe->ops.tuner_ops.release == NULL) return -ENODEV; af9005_fe_refresh_state(fe); *unc = state->unc; @@ -517,7 +515,7 @@ static int af9005_fe_read_signal_strength(struct dvb_frontend *fe, int ret; u8 if_gain, rf_gain; - if (state->tuner == NULL) + if (fe->ops.tuner_ops.release == NULL) return -ENODEV; ret = af9005_read_ofdm_register(state->d, xd_r_reg_aagc_rf_gain, @@ -881,10 +879,8 @@ static int af9005_fe_init(struct dvb_frontend *fe) af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst, reg_ofdm_rst_pos, reg_ofdm_rst_len, 1))) return ret; - if ((ret = - af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst, - reg_ofdm_rst_pos, reg_ofdm_rst_len, 0))) - return ret; + ret = af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst, + reg_ofdm_rst_pos, reg_ofdm_rst_len, 0); if (ret) return ret; @@ -1041,7 +1037,7 @@ static int af9005_fe_init(struct dvb_frontend *fe) return ret; /* attach tuner and init */ - if (state->tuner == NULL) { + if (fe->ops.tuner_ops.release == NULL) { /* read tuner and board id from eeprom */ ret = af9005_read_eeprom(adap->dev, 0xc6, buf, 2); if (ret) { @@ -1058,20 +1054,16 @@ static int af9005_fe_init(struct dvb_frontend *fe) return ret; } if1 = (u16) (buf[0] << 8) + buf[1]; - state->tuner = - dvb_attach(mt2060_attach, fe, &adap->dev->i2c_adap, - &af9005_mt2060_config, if1); - if (state->tuner == NULL) { + if (dvb_attach(mt2060_attach, fe, &adap->dev->i2c_adap, + &af9005_mt2060_config, if1) == NULL) { deb_info("MT2060 attach failed\n"); return -ENODEV; } break; case 3: /* QT1010 */ case 9: /* QT1010B */ - state->tuner = - dvb_attach(qt1010_attach, fe, &adap->dev->i2c_adap, - &af9005_qt1010_config); - if (state->tuner == NULL) { + if (dvb_attach(qt1010_attach, fe, &adap->dev->i2c_adap, + &af9005_qt1010_config) ==NULL) { deb_info("QT1010 attach failed\n"); return -ENODEV; } @@ -1080,7 +1072,7 @@ static int af9005_fe_init(struct dvb_frontend *fe) err("Unsupported tuner type %d", buf[0]); return -ENODEV; } - ret = state->tuner->ops.tuner_ops.init(state->tuner); + ret = fe->ops.tuner_ops.init(fe); if (ret) return ret; } @@ -1118,7 +1110,7 @@ static int af9005_fe_set_frontend(struct dvb_frontend *fe, deb_info("af9005_fe_set_frontend freq %d bw %d\n", fep->frequency, fep->u.ofdm.bandwidth); - if (state->tuner == NULL) { + if (fe->ops.tuner_ops.release == NULL) { err("Tuner not attached"); return -ENODEV; } @@ -1199,7 +1191,7 @@ static int af9005_fe_set_frontend(struct dvb_frontend *fe, return ret; /* set tuner */ deb_info("set tuner\n"); - ret = state->tuner->ops.tuner_ops.set_params(state->tuner, fep); + ret = fe->ops.tuner_ops.set_params(fe, fep); if (ret) return ret; @@ -1435,12 +1427,6 @@ static void af9005_fe_release(struct dvb_frontend *fe) { struct af9005_fe_state *state = (struct af9005_fe_state *)fe->demodulator_priv; - if (state->tuner != NULL && state->tuner->ops.tuner_ops.release != NULL) { - state->tuner->ops.tuner_ops.release(state->tuner); -#ifdef CONFIG_DVB_CORE_ATTACH - symbol_put_addr(state->tuner->ops.tuner_ops.release); -#endif - } kfree(state); } @@ -1458,7 +1444,6 @@ struct dvb_frontend *af9005_fe_attach(struct dvb_usb_device *d) deb_info("attaching frontend af9005\n"); state->d = d; - state->tuner = NULL; state->opened = 0; memcpy(&state->frontend.ops, &af9005_fe_ops, diff --git a/trunk/drivers/media/dvb/frontends/dvb-pll.c b/trunk/drivers/media/dvb/frontends/dvb-pll.c index 0c0b94767bc1..ca99e439c97c 100644 --- a/trunk/drivers/media/dvb/frontends/dvb-pll.c +++ b/trunk/drivers/media/dvb/frontends/dvb-pll.c @@ -501,7 +501,7 @@ static struct dvb_pll_desc dvb_pll_opera1 = { /* Philips FCV1236D */ -struct dvb_pll_desc dvb_pll_fcv1236d = { +static struct dvb_pll_desc dvb_pll_fcv1236d = { /* Bit_0: RF Input select * Bit_1: 0=digital, 1=analog */ diff --git a/trunk/drivers/media/video/bt8xx/bttv-cards.c b/trunk/drivers/media/video/bt8xx/bttv-cards.c index 387cb2122d4f..f6715007d409 100644 --- a/trunk/drivers/media/video/bt8xx/bttv-cards.c +++ b/trunk/drivers/media/video/bt8xx/bttv-cards.c @@ -33,6 +33,7 @@ #include #include #include +#include #include @@ -45,7 +46,7 @@ static void boot_msp34xx(struct bttv *btv, int pin); static void boot_bt832(struct bttv *btv); static void hauppauge_eeprom(struct bttv *btv); static void avermedia_eeprom(struct bttv *btv); -static void osprey_eeprom(struct bttv *btv); +static void osprey_eeprom(struct bttv *btv, const u8 ee[256]); static void modtec_eeprom(struct bttv *btv); static void init_PXC200(struct bttv *btv); static void init_RTV24(struct bttv *btv); @@ -2843,13 +2844,28 @@ struct tvcard bttv_tvcards[] = { .has_remote = 1, }, /* ---- card 0x8c ---------------------------------- */ + /* Has four Bt878 chips behind a PCI bridge, each chip has: + one external BNC composite input (mux 2) + three internal composite inputs (unknown muxes) + an 18-bit stereo A/D (CS5331A), which has: + one external stereo unblanced (RCA) audio connection + one (or 3?) internal stereo balanced (XLR) audio connection + input is selected via gpio to a 14052B mux + (mask=0x300, unbal=0x000, bal=0x100, ??=0x200,0x300) + gain is controlled via an X9221A chip on the I2C bus @0x28 + sample rate is controlled via gpio to an MK1413S + (mask=0x3, 32kHz=0x0, 44.1kHz=0x1, 48kHz=0x2, ??=0x3) + There is neither a tuner nor an svideo input. */ [BTTV_BOARD_OSPREY440] = { .name = "Osprey 440", - .video_inputs = 1, - .audio_inputs = 1, + .video_inputs = 4, + .audio_inputs = 2, /* this is meaningless */ .tuner = UNSET, - .svhs = 1, - .muxsel = { 2 }, + .svhs = UNSET, + .muxsel = { 2, 3, 0, 1 }, /* 3,0,1 are guesses */ + .gpiomask = 0x303, + .gpiomute = 0x000, /* int + 32kHz */ + .gpiomux = { 0, 0, 0x000, 0x100}, .pll = PLL_28, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, @@ -3453,11 +3469,12 @@ void __devinit bttv_init_card2(struct bttv *btv) case BTTV_BOARD_OSPREY2xx: case BTTV_BOARD_OSPREY2x0_SVID: case BTTV_BOARD_OSPREY2x0: + case BTTV_BOARD_OSPREY440: case BTTV_BOARD_OSPREY500: case BTTV_BOARD_OSPREY540: case BTTV_BOARD_OSPREY2000: bttv_readee(btv,eeprom_data,0xa0); - osprey_eeprom(btv); + osprey_eeprom(btv, eeprom_data); break; case BTTV_BOARD_IDS_EAGLE: init_ids_eagle(btv); @@ -3748,106 +3765,119 @@ static int __devinit pvr_boot(struct bttv *btv) /* ----------------------------------------------------------------------- */ /* some osprey specific stuff */ -static void __devinit osprey_eeprom(struct bttv *btv) +static void __devinit osprey_eeprom(struct bttv *btv, const u8 ee[256]) { - int i = 0; - unsigned char *ee = eeprom_data; - unsigned long serial = 0; - - if (btv->c.type == 0) { - /* this might be an antique... check for MMAC label in eeprom */ - if ((ee[0]=='M') && (ee[1]=='M') && (ee[2]=='A') && (ee[3]=='C')) { - unsigned char checksum = 0; - for (i = 0; i < 21; i++) - checksum += ee[i]; - if (checksum != ee[21]) - return; - btv->c.type = BTTV_BOARD_OSPREY1x0_848; - for (i = 12; i < 21; i++) - serial *= 10, serial += ee[i] - '0'; - } + int i; + u32 serial = 0; + int cardid = -1; + + /* This code will nevery actually get called in this case.... */ + if (btv->c.type == BTTV_BOARD_UNKNOWN) { + /* this might be an antique... check for MMAC label in eeprom */ + if (!strncmp(ee, "MMAC", 4)) { + u8 checksum = 0; + for (i = 0; i < 21; i++) + checksum += ee[i]; + if (checksum != ee[21]) + return; + cardid = BTTV_BOARD_OSPREY1x0_848; + for (i = 12; i < 21; i++) + serial *= 10, serial += ee[i] - '0'; + } } else { - unsigned short type; - int offset = 4*16; - - for (; offset < 8*16; offset += 16) { - unsigned short checksum = 0; - /* verify the checksum */ - for (i = 0; i < 14; i++) - checksum += ee[i+offset]; - checksum = ~checksum; /* no idea why */ - if ((((checksum>>8)&0x0FF) == ee[offset+14]) && - ((checksum & 0x0FF) == ee[offset+15])) { - break; - } - } - - if (offset >= 8*16) - return; - - /* found a valid descriptor */ - type = (ee[offset+4]<<8) | (ee[offset+5]); - - switch(type) { - /* 848 based */ - case 0x0004: - btv->c.type = BTTV_BOARD_OSPREY1x0_848; - break; - case 0x0005: - btv->c.type = BTTV_BOARD_OSPREY101_848; - break; - - /* 878 based */ - case 0x0012: - case 0x0013: - btv->c.type = BTTV_BOARD_OSPREY1x0; - break; - case 0x0014: - case 0x0015: - btv->c.type = BTTV_BOARD_OSPREY1x1; - break; - case 0x0016: - case 0x0017: - case 0x0020: - btv->c.type = BTTV_BOARD_OSPREY1x1_SVID; - break; - case 0x0018: - case 0x0019: - case 0x001E: - case 0x001F: - btv->c.type = BTTV_BOARD_OSPREY2xx; - break; - case 0x001A: - case 0x001B: - btv->c.type = BTTV_BOARD_OSPREY2x0_SVID; - break; - case 0x0040: - btv->c.type = BTTV_BOARD_OSPREY500; - break; - case 0x0050: - case 0x0056: - btv->c.type = BTTV_BOARD_OSPREY540; - /* bttv_osprey_540_init(btv); */ - break; - case 0x0060: - case 0x0070: - case 0x00A0: - btv->c.type = BTTV_BOARD_OSPREY2x0; - /* enable output on select control lines */ - gpio_inout(0xffffff,0x000303); - break; - default: - /* unknown...leave generic, but get serial # */ - break; - } - serial = (ee[offset+6] << 24) - | (ee[offset+7] << 16) - | (ee[offset+8] << 8) - | (ee[offset+9]); - } - - printk(KERN_INFO "bttv%d: osprey eeprom: card=%d name=%s serial=%ld\n", - btv->c.nr, btv->c.type, bttv_tvcards[btv->c.type].name,serial); + unsigned short type; + + for (i = 4*16; i < 8*16; i += 16) { + u16 checksum = ip_compute_csum(ee + i, 16); + + if ((checksum&0xff) + (checksum>>8) == 0xff) + break; + } + if (i >= 8*16) + return; + ee += i; + + /* found a valid descriptor */ + type = be16_to_cpup((u16*)(ee+4)); + + switch(type) { + /* 848 based */ + case 0x0004: + cardid = BTTV_BOARD_OSPREY1x0_848; + break; + case 0x0005: + cardid = BTTV_BOARD_OSPREY101_848; + break; + + /* 878 based */ + case 0x0012: + case 0x0013: + cardid = BTTV_BOARD_OSPREY1x0; + break; + case 0x0014: + case 0x0015: + cardid = BTTV_BOARD_OSPREY1x1; + break; + case 0x0016: + case 0x0017: + case 0x0020: + cardid = BTTV_BOARD_OSPREY1x1_SVID; + break; + case 0x0018: + case 0x0019: + case 0x001E: + case 0x001F: + cardid = BTTV_BOARD_OSPREY2xx; + break; + case 0x001A: + case 0x001B: + cardid = BTTV_BOARD_OSPREY2x0_SVID; + break; + case 0x0040: + cardid = BTTV_BOARD_OSPREY500; + break; + case 0x0050: + case 0x0056: + cardid = BTTV_BOARD_OSPREY540; + /* bttv_osprey_540_init(btv); */ + break; + case 0x0060: + case 0x0070: + case 0x00A0: + cardid = BTTV_BOARD_OSPREY2x0; + /* enable output on select control lines */ + gpio_inout(0xffffff,0x000303); + break; + case 0x00D8: + cardid = BTTV_BOARD_OSPREY440; + break; + default: + /* unknown...leave generic, but get serial # */ + printk(KERN_INFO "bttv%d: " + "osprey eeprom: unknown card type 0x%04x\n", + btv->c.nr, type); + break; + } + serial = be32_to_cpup((u32*)(ee+6)); + } + + printk(KERN_INFO "bttv%d: osprey eeprom: card=%d '%s' serial=%u\n", + btv->c.nr, cardid, + cardid>0 ? bttv_tvcards[cardid].name : "Unknown", serial); + + if (cardid<0 || btv->c.type == cardid) + return; + + /* card type isn't set correctly */ + if (card[btv->c.nr] < bttv_num_tvcards) { + printk(KERN_WARNING "bttv%d: osprey eeprom: " + "Not overriding user specified card type\n", btv->c.nr); + } else { + printk(KERN_INFO "bttv%d: osprey eeprom: " + "Changing card type from %d to %d\n", btv->c.nr, + btv->c.type, cardid); + btv->c.type = cardid; + } } /* ----------------------------------------------------------------------- */ diff --git a/trunk/drivers/media/video/ivtv/ivtv-driver.h b/trunk/drivers/media/video/ivtv/ivtv-driver.h index 91b588d261ae..8abb34a35816 100644 --- a/trunk/drivers/media/video/ivtv/ivtv-driver.h +++ b/trunk/drivers/media/video/ivtv/ivtv-driver.h @@ -417,6 +417,7 @@ struct ivtv_mailbox_data { #define IVTV_F_I_WORK_HANDLER_YUV 17 /* there is work to be done for YUV */ #define IVTV_F_I_WORK_HANDLER_PIO 18 /* there is work to be done for PIO */ #define IVTV_F_I_PIO 19 /* PIO in progress */ +#define IVTV_F_I_DEC_PAUSED 20 /* the decoder is paused */ /* Event notifications */ #define IVTV_F_I_EV_DEC_STOPPED 28 /* decoder stopped event */ diff --git a/trunk/drivers/media/video/ivtv/ivtv-fileops.c b/trunk/drivers/media/video/ivtv/ivtv-fileops.c index 8e97a938398f..5dd519caf81d 100644 --- a/trunk/drivers/media/video/ivtv/ivtv-fileops.c +++ b/trunk/drivers/media/video/ivtv/ivtv-fileops.c @@ -757,6 +757,7 @@ static void ivtv_stop_decoding(struct ivtv_open_id *id, int flags, u64 pts) itv->output_mode = OUT_NONE; itv->speed = 0; + clear_bit(IVTV_F_I_DEC_PAUSED, &itv->i_flags); ivtv_release_stream(s); } @@ -799,7 +800,16 @@ int ivtv_v4l2_close(struct inode *inode, struct file *filp) ivtv_unmute(itv); ivtv_release_stream(s); } else if (s->type >= IVTV_DEC_STREAM_TYPE_MPG) { + struct ivtv_stream *s_vout = &itv->streams[IVTV_DEC_STREAM_TYPE_VOUT]; + ivtv_stop_decoding(id, VIDEO_CMD_STOP_TO_BLACK | VIDEO_CMD_STOP_IMMEDIATELY, 0); + + /* If all output streams are closed, and if the user doesn't have + IVTV_DEC_STREAM_TYPE_VOUT open, then disable VBI on TV-out. */ + if (itv->output_mode == OUT_NONE && !test_bit(IVTV_F_S_APPL_IO, &s_vout->s_flags)) { + /* disable VBI on TV-out */ + ivtv_disable_vbi(itv); + } } else { ivtv_stop_capture(id, 0); } diff --git a/trunk/drivers/media/video/ivtv/ivtv-firmware.c b/trunk/drivers/media/video/ivtv/ivtv-firmware.c index d0feabf93080..425eb1063904 100644 --- a/trunk/drivers/media/video/ivtv/ivtv-firmware.c +++ b/trunk/drivers/media/video/ivtv/ivtv-firmware.c @@ -72,8 +72,8 @@ static int load_fw_direct(const char *fn, volatile u8 __iomem *mem, struct ivtv dst++; src++; } - release_firmware(fw); IVTV_INFO("Loaded %s firmware (%zd bytes)\n", fn, fw->size); + release_firmware(fw); return size; } IVTV_ERR("Unable to open firmware %s (must be %ld bytes)\n", fn, size); diff --git a/trunk/drivers/media/video/ivtv/ivtv-ioctl.c b/trunk/drivers/media/video/ivtv/ivtv-ioctl.c index 4773453e8dab..047624b9e271 100644 --- a/trunk/drivers/media/video/ivtv/ivtv-ioctl.c +++ b/trunk/drivers/media/video/ivtv/ivtv-ioctl.c @@ -285,6 +285,10 @@ static int ivtv_video_command(struct ivtv *itv, struct ivtv_open_id *id, if (ivtv_set_output_mode(itv, OUT_MPG) != OUT_MPG) return -EBUSY; + if (test_and_clear_bit(IVTV_F_I_DEC_PAUSED, &itv->i_flags)) { + /* forces ivtv_set_speed to be called */ + itv->speed = 0; + } return ivtv_start_decoding(id, vc->play.speed); } @@ -309,6 +313,7 @@ static int ivtv_video_command(struct ivtv *itv, struct ivtv_open_id *id, if (atomic_read(&itv->decoding) > 0) { ivtv_vapi(itv, CX2341X_DEC_PAUSE_PLAYBACK, 1, (vc->flags & VIDEO_CMD_FREEZE_TO_BLACK) ? 1 : 0); + set_bit(IVTV_F_I_DEC_PAUSED, &itv->i_flags); } break; @@ -317,8 +322,10 @@ static int ivtv_video_command(struct ivtv *itv, struct ivtv_open_id *id, if (try) break; if (itv->output_mode != OUT_MPG) return -EBUSY; - if (atomic_read(&itv->decoding) > 0) { - ivtv_vapi(itv, CX2341X_DEC_START_PLAYBACK, 2, 0, 0); + if (test_and_clear_bit(IVTV_F_I_DEC_PAUSED, &itv->i_flags)) { + int speed = itv->speed; + itv->speed = 0; + return ivtv_start_decoding(id, speed); } break; diff --git a/trunk/drivers/media/video/ivtv/ivtv-mailbox.c b/trunk/drivers/media/video/ivtv/ivtv-mailbox.c index 814a673712b3..5e3b679202ae 100644 --- a/trunk/drivers/media/video/ivtv/ivtv-mailbox.c +++ b/trunk/drivers/media/video/ivtv/ivtv-mailbox.c @@ -40,6 +40,7 @@ #define API_HIGH_VOL (1 << 5) /* High volume command (i.e. called during encoding or decoding) */ #define API_NO_WAIT_MB (1 << 4) /* Command may not wait for a free mailbox */ #define API_NO_WAIT_RES (1 << 5) /* Command may not wait for the result */ +#define API_NO_POLL (1 << 6) /* Avoid pointless polling */ struct ivtv_api_info { int flags; /* Flags, see above */ @@ -51,7 +52,7 @@ struct ivtv_api_info { static const struct ivtv_api_info api_info[256] = { /* MPEG encoder API */ API_ENTRY(CX2341X_ENC_PING_FW, API_FAST_RESULT), - API_ENTRY(CX2341X_ENC_START_CAPTURE, API_RESULT), + API_ENTRY(CX2341X_ENC_START_CAPTURE, API_RESULT | API_NO_POLL), API_ENTRY(CX2341X_ENC_STOP_CAPTURE, API_RESULT), API_ENTRY(CX2341X_ENC_SET_AUDIO_ID, API_CACHE), API_ENTRY(CX2341X_ENC_SET_VIDEO_ID, API_CACHE), @@ -96,7 +97,7 @@ static const struct ivtv_api_info api_info[256] = { /* MPEG decoder API */ API_ENTRY(CX2341X_DEC_PING_FW, API_FAST_RESULT), - API_ENTRY(CX2341X_DEC_START_PLAYBACK, API_RESULT), + API_ENTRY(CX2341X_DEC_START_PLAYBACK, API_RESULT | API_NO_POLL), API_ENTRY(CX2341X_DEC_STOP_PLAYBACK, API_RESULT), API_ENTRY(CX2341X_DEC_SET_PLAYBACK_SPEED, API_RESULT), API_ENTRY(CX2341X_DEC_STEP_VIDEO, API_RESULT), @@ -290,6 +291,13 @@ static int ivtv_api_call(struct ivtv *itv, int cmd, int args, u32 data[]) /* Get results */ then = jiffies; + if (!(flags & API_NO_POLL)) { + /* First try to poll, then switch to delays */ + for (i = 0; i < 100; i++) { + if (readl(&mbox->flags) & IVTV_MBOX_FIRMWARE_DONE) + break; + } + } while (!(readl(&mbox->flags) & IVTV_MBOX_FIRMWARE_DONE)) { if (jiffies - then > api_timeout) { IVTV_DEBUG_WARN("Could not get result (%s)\n", api_info[cmd].name); @@ -301,7 +309,7 @@ static int ivtv_api_call(struct ivtv *itv, int cmd, int args, u32 data[]) if (flags & API_NO_WAIT_RES) mdelay(1); else - ivtv_msleep_timeout(10, 0); + ivtv_msleep_timeout(1, 0); } if (jiffies - then > msecs_to_jiffies(100)) IVTV_DEBUG_WARN("%s took %u jiffies\n", diff --git a/trunk/drivers/media/video/ivtv/ivtv-streams.c b/trunk/drivers/media/video/ivtv/ivtv-streams.c index 322b347b67c2..51df3f855031 100644 --- a/trunk/drivers/media/video/ivtv/ivtv-streams.c +++ b/trunk/drivers/media/video/ivtv/ivtv-streams.c @@ -603,10 +603,6 @@ static int ivtv_setup_v4l2_decode_stream(struct ivtv_stream *s) IVTV_DEBUG_INFO("Setting some initial decoder settings\n"); - /* disable VBI signals, if the MPEG stream contains VBI data, - then that data will be processed automatically for you. */ - ivtv_disable_vbi(itv); - /* set audio mode to left/stereo for dual/stereo mode. */ ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode); @@ -639,7 +635,7 @@ static int ivtv_setup_v4l2_decode_stream(struct ivtv_stream *s) } if (ivtv_vapi(itv, CX2341X_DEC_SET_DECODER_SOURCE, 4, datatype, itv->params.width, itv->params.height, itv->params.audio_properties)) { - IVTV_DEBUG_WARN("COULDN'T INITIALIZE DECODER SOURCE\n"); + IVTV_DEBUG_WARN("Couldn't initialize decoder source\n"); } return 0; } @@ -909,11 +905,6 @@ int ivtv_stop_v4l2_decode_stream(struct ivtv_stream *s, int flags, u64 pts) clear_bit(IVTV_F_S_STREAMING, &s->s_flags); ivtv_flush_queues(s); - if (!test_bit(IVTV_F_S_PASSTHROUGH, &s->s_flags)) { - /* disable VBI on TV-out */ - ivtv_disable_vbi(itv); - } - /* decrement decoding */ atomic_dec(&itv->decoding); diff --git a/trunk/drivers/media/video/usbvision/usbvision-video.c b/trunk/drivers/media/video/usbvision/usbvision-video.c index 868b6886fe7f..e3371f972240 100644 --- a/trunk/drivers/media/video/usbvision/usbvision-video.c +++ b/trunk/drivers/media/video/usbvision/usbvision-video.c @@ -517,6 +517,7 @@ static int vidioc_g_register (struct file *file, void *priv, __FUNCTION__, errCode); return errCode; } + reg->val = errCode; return 0; } @@ -531,8 +532,8 @@ static int vidioc_s_register (struct file *file, void *priv, if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) return -EINVAL; /* NT100x has a 8-bit register space */ - reg->val = (u8)usbvision_write_reg(usbvision, reg->reg&0xff, reg->val); - if (reg->val < 0) { + errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val); + if (errCode < 0) { err("%s: VIDIOC_DBG_S_REGISTER failed: error %d", __FUNCTION__, errCode); return errCode; diff --git a/trunk/drivers/media/video/zoran.h b/trunk/drivers/media/video/zoran.h index 8fb4a3414e0a..937c4a616c0e 100644 --- a/trunk/drivers/media/video/zoran.h +++ b/trunk/drivers/media/video/zoran.h @@ -240,11 +240,16 @@ enum gpcs_type { struct zoran_format { char *name; +#ifdef CONFIG_VIDEO_V4L1_COMPAT int palette; +#endif +#ifdef CONFIG_VIDEO_V4L2 __u32 fourcc; int colorspace; +#endif int depth; __u32 flags; + __u32 vfespfr; }; /* flags */ #define ZORAN_FORMAT_COMPRESSED 1<<0 diff --git a/trunk/drivers/media/video/zoran_device.c b/trunk/drivers/media/video/zoran_device.c index b0752767ee4f..ba2f4ed29483 100644 --- a/trunk/drivers/media/video/zoran_device.c +++ b/trunk/drivers/media/video/zoran_device.c @@ -429,8 +429,6 @@ zr36057_set_vfe (struct zoran *zr, reg |= (HorDcm << ZR36057_VFESPFR_HorDcm); reg |= (VerDcm << ZR36057_VFESPFR_VerDcm); reg |= (DispMode << ZR36057_VFESPFR_DispMode); - if (format->palette != VIDEO_PALETTE_YUV422 && format->palette != VIDEO_PALETTE_YUYV) - reg |= ZR36057_VFESPFR_LittleEndian; /* RJ: I don't know, why the following has to be the opposite * of the corresponding ZR36060 setting, but only this way * we get the correct colors when uncompressing to the screen */ @@ -439,36 +437,6 @@ zr36057_set_vfe (struct zoran *zr, if (zr->norm != VIDEO_MODE_NTSC) reg |= ZR36057_VFESPFR_ExtFl; // NEEDED!!!!!!! Wolfgang reg |= ZR36057_VFESPFR_TopField; - switch (format->palette) { - - case VIDEO_PALETTE_YUYV: - case VIDEO_PALETTE_YUV422: - reg |= ZR36057_VFESPFR_YUV422; - break; - - case VIDEO_PALETTE_RGB555: - reg |= ZR36057_VFESPFR_RGB555 | ZR36057_VFESPFR_ErrDif; - break; - - case VIDEO_PALETTE_RGB565: - reg |= ZR36057_VFESPFR_RGB565 | ZR36057_VFESPFR_ErrDif; - break; - - case VIDEO_PALETTE_RGB24: - reg |= ZR36057_VFESPFR_RGB888 | ZR36057_VFESPFR_Pack24; - break; - - case VIDEO_PALETTE_RGB32: - reg |= ZR36057_VFESPFR_RGB888; - break; - - default: - dprintk(1, - KERN_INFO "%s: set_vfe() - unknown color_fmt=%x\n", - ZR_DEVNAME(zr), format->palette); - return; - - } if (HorDcm >= 48) { reg |= 3 << ZR36057_VFESPFR_HFilter; /* 5 tap filter */ } else if (HorDcm >= 32) { @@ -476,6 +444,7 @@ zr36057_set_vfe (struct zoran *zr, } else if (HorDcm >= 16) { reg |= 1 << ZR36057_VFESPFR_HFilter; /* 3 tap filter */ } + reg |= format->vfespfr; btwrite(reg, ZR36057_VFESPFR); /* display configuration */ @@ -651,11 +620,17 @@ zr36057_set_memgrab (struct zoran *zr, int mode) { if (mode) { - if (btread(ZR36057_VSSFGR) & - (ZR36057_VSSFGR_SnapShot | ZR36057_VSSFGR_FrameGrab)) + /* We only check SnapShot and not FrameGrab here. SnapShot==1 + * means a capture is already in progress, but FrameGrab==1 + * doesn't necessary mean that. It's more correct to say a 1 + * to 0 transition indicates a capture completed. If a + * capture is pending when capturing is tuned off, FrameGrab + * will be stuck at 1 until capturing is turned back on. + */ + if (btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot) dprintk(1, KERN_WARNING - "%s: zr36057_set_memgrab(1) with SnapShot or FrameGrab on!?\n", + "%s: zr36057_set_memgrab(1) with SnapShot on!?\n", ZR_DEVNAME(zr)); /* switch on VSync interrupts */ @@ -672,11 +647,12 @@ zr36057_set_memgrab (struct zoran *zr, zr->v4l_memgrab_active = 1; } else { - zr->v4l_memgrab_active = 0; - /* switch off VSync interrupts */ btand(~zr->card.vsync_int, ZR36057_ICR); // SW + zr->v4l_memgrab_active = 0; + zr->v4l_grab_frame = NO_GRAB_ACTIVE; + /* reenable grabbing to screen if it was running */ if (zr->v4l_overlay_active) { zr36057_overlay(zr, 1); diff --git a/trunk/drivers/media/video/zoran_driver.c b/trunk/drivers/media/video/zoran_driver.c index 17118a490f81..72a037b75d63 100644 --- a/trunk/drivers/media/video/zoran_driver.c +++ b/trunk/drivers/media/video/zoran_driver.c @@ -99,88 +99,103 @@ #include -const struct zoran_format zoran_formats[] = { - { - .name = "15-bit RGB", - .palette = VIDEO_PALETTE_RGB555, -#ifdef CONFIG_VIDEO_V4L2 -#ifdef __LITTLE_ENDIAN - .fourcc = V4L2_PIX_FMT_RGB555, +#if defined(CONFIG_VIDEO_V4L2) && defined(CONFIG_VIDEO_V4L1_COMPAT) +#define ZFMT(pal, fcc, cs) \ + .palette = (pal), .fourcc = (fcc), .colorspace = (cs) +#elif defined(CONFIG_VIDEO_V4L2) +#define ZFMT(pal, fcc, cs) \ + .fourcc = (fcc), .colorspace = (cs) #else - .fourcc = V4L2_PIX_FMT_RGB555X, -#endif - .colorspace = V4L2_COLORSPACE_SRGB, +#define ZFMT(pal, fcc, cs) \ + .palette = (pal) #endif + +const struct zoran_format zoran_formats[] = { + { + .name = "15-bit RGB LE", + ZFMT(VIDEO_PALETTE_RGB555, + V4L2_PIX_FMT_RGB555, V4L2_COLORSPACE_SRGB), .depth = 15, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif| + ZR36057_VFESPFR_LittleEndian, }, { - .name = "16-bit RGB", - .palette = VIDEO_PALETTE_RGB565, -#ifdef CONFIG_VIDEO_V4L2 -#ifdef __LITTLE_ENDIAN - .fourcc = V4L2_PIX_FMT_RGB565, -#else - .fourcc = V4L2_PIX_FMT_RGB565X, -#endif - .colorspace = V4L2_COLORSPACE_SRGB, -#endif + .name = "15-bit RGB BE", + ZFMT(-1, + V4L2_PIX_FMT_RGB555X, V4L2_COLORSPACE_SRGB), + .depth = 15, + .flags = ZORAN_FORMAT_CAPTURE | + ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif, + }, { + .name = "16-bit RGB LE", + ZFMT(VIDEO_PALETTE_RGB565, + V4L2_PIX_FMT_RGB565, V4L2_COLORSPACE_SRGB), .depth = 16, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif| + ZR36057_VFESPFR_LittleEndian, + }, { + .name = "16-bit RGB BE", + ZFMT(-1, + V4L2_PIX_FMT_RGB565, V4L2_COLORSPACE_SRGB), + .depth = 16, + .flags = ZORAN_FORMAT_CAPTURE | + ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif, }, { .name = "24-bit RGB", - .palette = VIDEO_PALETTE_RGB24, -#ifdef CONFIG_VIDEO_V4L2 -#ifdef __LITTLE_ENDIAN - .fourcc = V4L2_PIX_FMT_BGR24, -#else - .fourcc = V4L2_PIX_FMT_RGB24, -#endif - .colorspace = V4L2_COLORSPACE_SRGB, -#endif + ZFMT(VIDEO_PALETTE_RGB24, + V4L2_PIX_FMT_BGR24, V4L2_COLORSPACE_SRGB), .depth = 24, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24, }, { - .name = "32-bit RGB", - .palette = VIDEO_PALETTE_RGB32, -#ifdef CONFIG_VIDEO_V4L2 -#ifdef __LITTLE_ENDIAN - .fourcc = V4L2_PIX_FMT_BGR32, -#else - .fourcc = V4L2_PIX_FMT_RGB32, -#endif - .colorspace = V4L2_COLORSPACE_SRGB, -#endif + .name = "32-bit RGB LE", + ZFMT(VIDEO_PALETTE_RGB32, + V4L2_PIX_FMT_BGR32, V4L2_COLORSPACE_SRGB), + .depth = 32, + .flags = ZORAN_FORMAT_CAPTURE | + ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian, + }, { + .name = "32-bit RGB BE", + ZFMT(-1, + V4L2_PIX_FMT_RGB32, V4L2_COLORSPACE_SRGB), .depth = 32, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_RGB888, }, { .name = "4:2:2, packed, YUYV", - .palette = VIDEO_PALETTE_YUV422, -#ifdef CONFIG_VIDEO_V4L2 - .fourcc = V4L2_PIX_FMT_YUYV, - .colorspace = V4L2_COLORSPACE_SMPTE170M, -#endif + ZFMT(VIDEO_PALETTE_YUV422, + V4L2_PIX_FMT_YUYV, V4L2_COLORSPACE_SMPTE170M), + .depth = 16, + .flags = ZORAN_FORMAT_CAPTURE | + ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_YUV422, + }, { + .name = "4:2:2, packed, UYVY", + ZFMT(VIDEO_PALETTE_UYVY, + V4L2_PIX_FMT_UYVY, V4L2_COLORSPACE_SMPTE170M), .depth = 16, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_OVERLAY, + .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian, }, { .name = "Hardware-encoded Motion-JPEG", - .palette = -1, -#ifdef CONFIG_VIDEO_V4L2 - .fourcc = V4L2_PIX_FMT_MJPEG, - .colorspace = V4L2_COLORSPACE_SMPTE170M, -#endif + ZFMT(-1, + V4L2_PIX_FMT_MJPEG, V4L2_COLORSPACE_SMPTE170M), .depth = 0, .flags = ZORAN_FORMAT_CAPTURE | ZORAN_FORMAT_PLAYBACK | ZORAN_FORMAT_COMPRESSED, } }; -static const int zoran_num_formats = - (sizeof(zoran_formats) / sizeof(struct zoran_format)); +#define NUM_FORMATS ARRAY_SIZE(zoran_formats) // RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined @@ -768,13 +783,13 @@ v4l_grab (struct file *file, struct zoran *zr = fh->zr; int res = 0, i; - for (i = 0; i < zoran_num_formats; i++) { + for (i = 0; i < NUM_FORMATS; i++) { if (zoran_formats[i].palette == mp->format && zoran_formats[i].flags & ZORAN_FORMAT_CAPTURE && !(zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)) break; } - if (i == zoran_num_formats || zoran_formats[i].depth == 0) { + if (i == NUM_FORMATS || zoran_formats[i].depth == 0) { dprintk(1, KERN_ERR "%s: v4l_grab() - wrong bytes-per-pixel format\n", @@ -1173,10 +1188,14 @@ zoran_close_end_session (struct file *file) /* v4l capture */ if (fh->v4l_buffers.active != ZORAN_FREE) { + long flags; + + spin_lock_irqsave(&zr->spinlock, flags); zr36057_set_memgrab(zr, 0); zr->v4l_buffers.allocated = 0; zr->v4l_buffers.active = fh->v4l_buffers.active = ZORAN_FREE; + spin_unlock_irqrestore(&zr->spinlock, flags); } /* v4l buffers */ @@ -2107,7 +2126,7 @@ zoran_do_ioctl (struct inode *inode, vpict->colour, vpict->contrast, vpict->depth, vpict->palette); - for (i = 0; i < zoran_num_formats; i++) { + for (i = 0; i < NUM_FORMATS; i++) { const struct zoran_format *fmt = &zoran_formats[i]; if (fmt->palette != -1 && @@ -2116,7 +2135,7 @@ zoran_do_ioctl (struct inode *inode, fmt->depth == vpict->depth) break; } - if (i == zoran_num_formats) { + if (i == NUM_FORMATS) { dprintk(1, KERN_ERR "%s: VIDIOCSPICT - Invalid palette %d\n", @@ -2220,10 +2239,10 @@ zoran_do_ioctl (struct inode *inode, ZR_DEVNAME(zr), vbuf->base, vbuf->width, vbuf->height, vbuf->depth, vbuf->bytesperline); - for (i = 0; i < zoran_num_formats; i++) + for (i = 0; i < NUM_FORMATS; i++) if (zoran_formats[i].depth == vbuf->depth) break; - if (i == zoran_num_formats) { + if (i == NUM_FORMATS) { dprintk(1, KERN_ERR "%s: VIDIOCSFBUF - invalid fbuf depth %d\n", @@ -2672,14 +2691,14 @@ zoran_do_ioctl (struct inode *inode, return -EINVAL; } - for (i = 0; i < zoran_num_formats; i++) { + for (i = 0; i < NUM_FORMATS; i++) { if (zoran_formats[i].flags & flag) num++; if (num == fmt->index) break; } if (fmt->index < 0 /* late, but not too late */ || - i == zoran_num_formats) + i == NUM_FORMATS) return -EINVAL; memset(fmt, 0, sizeof(*fmt)); @@ -2737,7 +2756,8 @@ zoran_do_ioctl (struct inode *inode, fmt->fmt.pix.height = fh->v4l_settings.height; fmt->fmt.pix.sizeimage = - fh->v4l_buffers.buffer_size; + fh->v4l_settings.bytesperline * + fh->v4l_settings.height; fmt->fmt.pix.pixelformat = fh->v4l_settings.format->fourcc; fmt->fmt.pix.colorspace = @@ -2941,11 +2961,11 @@ zoran_do_ioctl (struct inode *inode, sfmtjpg_unlock_and_return: mutex_unlock(&zr->resource_lock); } else { - for (i = 0; i < zoran_num_formats; i++) + for (i = 0; i < NUM_FORMATS; i++) if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc) break; - if (i == zoran_num_formats) { + if (i == NUM_FORMATS) { dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x (%4.4s)\n", @@ -2984,8 +3004,9 @@ zoran_do_ioctl (struct inode *inode, /* tell the user the * results/missing stuff */ - fmt->fmt.pix.sizeimage = fh->v4l_buffers.buffer_size /*zr->gbpl * zr->gheight */ - ; + fmt->fmt.pix.sizeimage = + fh->v4l_settings.height * + fh->v4l_settings.bytesperline; if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2)) fmt->fmt.pix.field = @@ -3053,10 +3074,10 @@ zoran_do_ioctl (struct inode *inode, fb->fmt.bytesperline, fb->fmt.pixelformat, (char *) &printformat); - for (i = 0; i < zoran_num_formats; i++) + for (i = 0; i < NUM_FORMATS; i++) if (zoran_formats[i].fourcc == fb->fmt.pixelformat) break; - if (i == zoran_num_formats) { + if (i == NUM_FORMATS) { dprintk(1, KERN_ERR "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n", @@ -3439,8 +3460,13 @@ zoran_do_ioctl (struct inode *inode, goto strmoff_unlock_and_return; /* unload capture */ - if (zr->v4l_memgrab_active) + if (zr->v4l_memgrab_active) { + long flags; + + spin_lock_irqsave(&zr->spinlock, flags); zr36057_set_memgrab(zr, 0); + spin_unlock_irqrestore(&zr->spinlock, flags); + } for (i = 0; i < fh->v4l_buffers.num_buffers; i++) zr->v4l_buffers.buffer[i].state = @@ -3704,11 +3730,11 @@ zoran_do_ioctl (struct inode *inode, dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n", ZR_DEVNAME(zr), (unsigned long long)*std); - if (*std == V4L2_STD_PAL) + if ((*std & V4L2_STD_PAL) && !(*std & ~V4L2_STD_PAL)) norm = VIDEO_MODE_PAL; - else if (*std == V4L2_STD_NTSC) + else if ((*std & V4L2_STD_NTSC) && !(*std & ~V4L2_STD_NTSC)) norm = VIDEO_MODE_NTSC; - else if (*std == V4L2_STD_SECAM) + else if ((*std & V4L2_STD_SECAM) && !(*std & ~V4L2_STD_SECAM)) norm = VIDEO_MODE_SECAM; else if (*std == V4L2_STD_ALL) norm = VIDEO_MODE_AUTO; @@ -4149,11 +4175,11 @@ zoran_do_ioctl (struct inode *inode, V4L2_BUF_TYPE_VIDEO_CAPTURE) { int i; - for (i = 0; i < zoran_num_formats; i++) + for (i = 0; i < NUM_FORMATS; i++) if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat) break; - if (i == zoran_num_formats) { + if (i == NUM_FORMATS) { res = -EINVAL; goto tryfmt_unlock_and_return; } @@ -4213,8 +4239,8 @@ zoran_poll (struct file *file, { struct zoran_fh *fh = file->private_data; struct zoran *zr = fh->zr; - wait_queue_head_t *queue = NULL; int res = 0, frame; + unsigned long flags; /* we should check whether buffers are ready to be synced on * (w/o waits - O_NONBLOCK) here @@ -4228,51 +4254,58 @@ zoran_poll (struct file *file, switch (fh->map_mode) { case ZORAN_MAP_MODE_RAW: - if (fh->v4l_buffers.active == ZORAN_FREE || - zr->v4l_pend_head == zr->v4l_pend_tail) { - dprintk(1, - "%s: zoran_poll() - no buffers queued\n", - ZR_DEVNAME(zr)); - res = POLLNVAL; - goto poll_unlock_and_return; - } - queue = &zr->v4l_capq; - frame = zr->v4l_pend[zr->v4l_pend_tail & V4L_MASK_FRAME]; - poll_wait(file, queue, wait); - if (fh->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE) + poll_wait(file, &zr->v4l_capq, wait); + frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME]; + + spin_lock_irqsave(&zr->spinlock, flags); + dprintk(3, + KERN_DEBUG + "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n", + ZR_DEVNAME(zr), __FUNCTION__, + "FAL"[fh->v4l_buffers.active], zr->v4l_sync_tail, + "UPMD"[zr->v4l_buffers.buffer[frame].state], + zr->v4l_pend_tail, zr->v4l_pend_head); + /* Process is the one capturing? */ + if (fh->v4l_buffers.active != ZORAN_FREE && + /* Buffer ready to DQBUF? */ + zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE) res = POLLIN | POLLRDNORM; + spin_unlock_irqrestore(&zr->spinlock, flags); + break; case ZORAN_MAP_MODE_JPG_REC: case ZORAN_MAP_MODE_JPG_PLAY: - if (fh->jpg_buffers.active == ZORAN_FREE || - zr->jpg_que_head == zr->jpg_que_tail) { - dprintk(1, - "%s: zoran_poll() - no buffers queued\n", - ZR_DEVNAME(zr)); - res = POLLNVAL; - goto poll_unlock_and_return; - } - queue = &zr->jpg_capq; + poll_wait(file, &zr->jpg_capq, wait); frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; - poll_wait(file, queue, wait); - if (fh->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) { + + spin_lock_irqsave(&zr->spinlock, flags); + dprintk(3, + KERN_DEBUG + "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n", + ZR_DEVNAME(zr), __FUNCTION__, + "FAL"[fh->jpg_buffers.active], zr->jpg_que_tail, + "UPMD"[zr->jpg_buffers.buffer[frame].state], + zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head); + if (fh->jpg_buffers.active != ZORAN_FREE && + zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) { if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) res = POLLIN | POLLRDNORM; else res = POLLOUT | POLLWRNORM; } + spin_unlock_irqrestore(&zr->spinlock, flags); + break; default: dprintk(1, + KERN_ERR "%s: zoran_poll() - internal error, unknown map_mode=%d\n", ZR_DEVNAME(zr), fh->map_mode); res = POLLNVAL; - goto poll_unlock_and_return; } -poll_unlock_and_return: mutex_unlock(&zr->resource_lock); return res; @@ -4368,11 +4401,15 @@ zoran_vm_close (struct vm_area_struct *vma) mutex_lock(&zr->resource_lock); if (fh->v4l_buffers.active != ZORAN_FREE) { + long flags; + + spin_lock_irqsave(&zr->spinlock, flags); zr36057_set_memgrab(zr, 0); zr->v4l_buffers.allocated = 0; zr->v4l_buffers.active = fh->v4l_buffers.active = ZORAN_FREE; + spin_unlock_irqrestore(&zr->spinlock, flags); } //v4l_fbuffer_free(file); fh->v4l_buffers.allocated = 0; diff --git a/trunk/drivers/message/i2o/i2o_block.c b/trunk/drivers/message/i2o/i2o_block.c index 5e1c99f83ab5..50b2c7334410 100644 --- a/trunk/drivers/message/i2o/i2o_block.c +++ b/trunk/drivers/message/i2o/i2o_block.c @@ -744,7 +744,7 @@ static int i2o_block_transfer(struct request *req) { struct i2o_block_device *dev = req->rq_disk->private_data; struct i2o_controller *c; - int tid = dev->i2o_dev->lct_data.tid; + u32 tid = dev->i2o_dev->lct_data.tid; struct i2o_message *msg; u32 *mptr; struct i2o_block_request *ireq = req->special; diff --git a/trunk/drivers/net/forcedeth.c b/trunk/drivers/net/forcedeth.c index 661c747389e4..51e1cb472738 100644 --- a/trunk/drivers/net/forcedeth.c +++ b/trunk/drivers/net/forcedeth.c @@ -178,6 +178,7 @@ #define DEV_HAS_STATISTICS_V2 0x0800 /* device supports hw statistics version 2 */ #define DEV_HAS_TEST_EXTENDED 0x1000 /* device supports extended diagnostic test */ #define DEV_HAS_MGMT_UNIT 0x2000 /* device supports management unit */ +#define DEV_HAS_CORRECT_MACADDR 0x4000 /* device supports correct mac address order */ enum { NvRegIrqStatus = 0x000, @@ -5172,7 +5173,8 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i /* check the workaround bit for correct mac address order */ txreg = readl(base + NvRegTransmitPoll); - if (txreg & NVREG_TRANSMITPOLL_MAC_ADDR_REV) { + if ((txreg & NVREG_TRANSMITPOLL_MAC_ADDR_REV) || + (id->driver_data & DEV_HAS_CORRECT_MACADDR)) { /* mac address is already in correct order */ dev->dev_addr[0] = (np->orig_mac[0] >> 0) & 0xff; dev->dev_addr[1] = (np->orig_mac[0] >> 8) & 0xff; @@ -5500,67 +5502,67 @@ static struct pci_device_id pci_tbl[] = { }, { /* MCP61 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_16), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, { /* MCP61 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_17), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, { /* MCP61 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_18), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, { /* MCP61 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_19), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, { /* MCP65 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_20), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, { /* MCP65 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_21), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, { /* MCP65 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_22), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, { /* MCP65 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_23), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, { /* MCP67 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_24), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, { /* MCP67 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_25), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, { /* MCP67 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_26), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, { /* MCP67 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_27), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, { /* MCP73 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_28), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, { /* MCP73 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_29), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, { /* MCP73 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_30), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, { /* MCP73 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_31), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR, }, {0,}, }; diff --git a/trunk/drivers/net/gianfar_mii.c b/trunk/drivers/net/gianfar_mii.c index ac3596f45dd8..100bf410bf5f 100644 --- a/trunk/drivers/net/gianfar_mii.c +++ b/trunk/drivers/net/gianfar_mii.c @@ -245,7 +245,7 @@ int __init gfar_mdio_init(void) return driver_register(&gianfar_mdio_driver); } -void __exit gfar_mdio_exit(void) +void gfar_mdio_exit(void) { driver_unregister(&gianfar_mdio_driver); } diff --git a/trunk/drivers/net/gianfar_mii.h b/trunk/drivers/net/gianfar_mii.h index 5d3400469514..b373091c7031 100644 --- a/trunk/drivers/net/gianfar_mii.h +++ b/trunk/drivers/net/gianfar_mii.h @@ -42,5 +42,5 @@ struct gfar_mii { int gfar_mdio_read(struct mii_bus *bus, int mii_id, int regnum); int gfar_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value); int __init gfar_mdio_init(void); -void __exit gfar_mdio_exit(void); +void gfar_mdio_exit(void); #endif /* GIANFAR_PHY_H */ diff --git a/trunk/drivers/net/hamradio/bpqether.c b/trunk/drivers/net/hamradio/bpqether.c index 656f2789c9ba..cc0ee93669ea 100644 --- a/trunk/drivers/net/hamradio/bpqether.c +++ b/trunk/drivers/net/hamradio/bpqether.c @@ -413,12 +413,12 @@ static void *bpq_seq_next(struct seq_file *seq, void *v, loff_t *pos) ++*pos; if (v == SEQ_START_TOKEN) - p = bpq_devices.next; + p = rcu_dereference(bpq_devices.next); else - p = ((struct bpqdev *)v)->bpq_list.next; + p = rcu_dereference(((struct bpqdev *)v)->bpq_list.next); return (p == &bpq_devices) ? NULL - : rcu_dereference(list_entry(p, struct bpqdev, bpq_list)); + : list_entry(p, struct bpqdev, bpq_list); } static void bpq_seq_stop(struct seq_file *seq, void *v) diff --git a/trunk/drivers/net/lib8390.c b/trunk/drivers/net/lib8390.c index 721ee38d2241..c429a5002dd6 100644 --- a/trunk/drivers/net/lib8390.c +++ b/trunk/drivers/net/lib8390.c @@ -143,6 +143,52 @@ static void __NS8390_init(struct net_device *dev, int startp); * annoying the transmit function is called bh atomic. That places * restrictions on the user context callers as disable_irq won't save * them. + * + * Additional explanation of problems with locking by Alan Cox: + * + * "The author (me) didn't use spin_lock_irqsave because the slowness of the + * card means that approach caused horrible problems like losing serial data + * at 38400 baud on some chips. Rememeber many 8390 nics on PCI were ISA + * chips with FPGA front ends. + * + * Ok the logic behind the 8390 is very simple: + * + * Things to know + * - IRQ delivery is asynchronous to the PCI bus + * - Blocking the local CPU IRQ via spin locks was too slow + * - The chip has register windows needing locking work + * + * So the path was once (I say once as people appear to have changed it + * in the mean time and it now looks rather bogus if the changes to use + * disable_irq_nosync_irqsave are disabling the local IRQ) + * + * + * Take the page lock + * Mask the IRQ on chip + * Disable the IRQ (but not mask locally- someone seems to have + * broken this with the lock validator stuff) + * [This must be _nosync as the page lock may otherwise + * deadlock us] + * Drop the page lock and turn IRQs back on + * + * At this point an existing IRQ may still be running but we can't + * get a new one + * + * Take the lock (so we know the IRQ has terminated) but don't mask + * the IRQs on the processor + * Set irqlock [for debug] + * + * Transmit (slow as ****) + * + * re-enable the IRQ + * + * + * We have to use disable_irq because otherwise you will get delayed + * interrupts on the APIC bus deadlocking the transmit path. + * + * Quite hairy but the chip simply wasn't designed for SMP and you can't + * even ACK an interrupt without risking corrupting other parallel + * activities on the chip." [lkml, 25 Jul 2007] */ diff --git a/trunk/drivers/net/mlx4/mr.c b/trunk/drivers/net/mlx4/mr.c index d0808fa3ec82..5b87183e62ce 100644 --- a/trunk/drivers/net/mlx4/mr.c +++ b/trunk/drivers/net/mlx4/mr.c @@ -255,10 +255,8 @@ int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access, int err; index = mlx4_bitmap_alloc(&priv->mr_table.mpt_bitmap); - if (index == -1) { - err = -ENOMEM; - goto err; - } + if (index == -1) + return -ENOMEM; mr->iova = iova; mr->size = size; @@ -269,15 +267,8 @@ int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access, err = mlx4_mtt_init(dev, npages, page_shift, &mr->mtt); if (err) - goto err_index; - - return 0; - -err_index: - mlx4_bitmap_free(&priv->mr_table.mpt_bitmap, index); + mlx4_bitmap_free(&priv->mr_table.mpt_bitmap, index); -err: - kfree(mr); return err; } EXPORT_SYMBOL_GPL(mlx4_mr_alloc); diff --git a/trunk/drivers/net/netxen/netxen_nic_main.c b/trunk/drivers/net/netxen/netxen_nic_main.c index 19e2fa940ac0..08a62acde8bf 100644 --- a/trunk/drivers/net/netxen/netxen_nic_main.c +++ b/trunk/drivers/net/netxen/netxen_nic_main.c @@ -335,7 +335,6 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) adapter->ahw.pdev = pdev; adapter->ahw.pci_func = pci_func_id; spin_lock_init(&adapter->tx_lock); - spin_lock_init(&adapter->lock); /* remap phys address */ mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ @@ -895,8 +894,6 @@ static int netxen_nic_open(struct net_device *netdev) /* Done here again so that even if phantom sw overwrote it, * we set it */ - if (adapter->macaddr_set) - adapter->macaddr_set(adapter, netdev->dev_addr); if (adapter->init_port && adapter->init_port(adapter, adapter->portnum) != 0) { del_timer_sync(&adapter->watchdog_timer); @@ -904,6 +901,8 @@ static int netxen_nic_open(struct net_device *netdev) netxen_nic_driver_name, adapter->portnum); return -EIO; } + if (adapter->macaddr_set) + adapter->macaddr_set(adapter, netdev->dev_addr); netxen_nic_set_link_parameters(adapter); @@ -930,6 +929,8 @@ static int netxen_nic_close(struct net_device *netdev) netif_carrier_off(netdev); netif_stop_queue(netdev); + netxen_nic_disable_int(adapter); + cmd_buff = adapter->cmd_buf_arr; for (i = 0; i < adapter->max_tx_desc_count; i++) { buffrag = cmd_buff->frag_array; @@ -1226,15 +1227,12 @@ static void netxen_tx_timeout_task(struct work_struct *work) { struct netxen_adapter *adapter = container_of(work, struct netxen_adapter, tx_timeout_task); - unsigned long flags; printk(KERN_ERR "%s %s: transmit timeout, resetting.\n", netxen_nic_driver_name, adapter->netdev->name); - spin_lock_irqsave(&adapter->lock, flags); netxen_nic_close(adapter->netdev); netxen_nic_open(adapter->netdev); - spin_unlock_irqrestore(&adapter->lock, flags); adapter->netdev->trans_start = jiffies; netif_wake_queue(adapter->netdev); } @@ -1243,28 +1241,12 @@ static int netxen_handle_int(struct netxen_adapter *adapter, struct net_device *netdev) { u32 ret = 0; - u32 our_int = 0; DPRINTK(INFO, "Entered handle ISR\n"); adapter->stats.ints++; - if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { - our_int = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); - /* not our interrupt */ - if ((our_int & (0x80 << adapter->portnum)) == 0) - return ret; - } - netxen_nic_disable_int(adapter); - if (adapter->intr_scheme == INTR_SCHEME_PERPORT) { - /* claim interrupt */ - if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { - writel(our_int & ~((u32)(0x80 << adapter->portnum)), - NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); - } - } - if (netxen_nic_rx_has_work(adapter) || netxen_nic_tx_has_work(adapter)) { if (netif_rx_schedule_prep(netdev)) { /* @@ -1298,6 +1280,7 @@ irqreturn_t netxen_intr(int irq, void *data) { struct netxen_adapter *adapter; struct net_device *netdev; + u32 our_int = 0; if (unlikely(!irq)) { return IRQ_NONE; /* Not our interrupt */ @@ -1305,7 +1288,22 @@ irqreturn_t netxen_intr(int irq, void *data) adapter = (struct netxen_adapter *)data; netdev = adapter->netdev; - /* process our status queue (for all 4 ports) */ + + if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { + our_int = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); + /* not our interrupt */ + if ((our_int & (0x80 << adapter->portnum)) == 0) + return IRQ_NONE; + } + + if (adapter->intr_scheme == INTR_SCHEME_PERPORT) { + /* claim interrupt */ + if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { + writel(our_int & ~((u32)(0x80 << adapter->portnum)), + NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); + } + } + if (netif_running(netdev)) netxen_handle_int(adapter, netdev); diff --git a/trunk/drivers/net/pcmcia/nmclan_cs.c b/trunk/drivers/net/pcmcia/nmclan_cs.c index 73da611fd536..997c2d0c83bb 100644 --- a/trunk/drivers/net/pcmcia/nmclan_cs.c +++ b/trunk/drivers/net/pcmcia/nmclan_cs.c @@ -996,7 +996,7 @@ static irqreturn_t mace_interrupt(int irq, void *dev_id) { struct net_device *dev = (struct net_device *) dev_id; mace_private *lp = netdev_priv(dev); - kio_addr_t ioaddr = dev->base_addr; + kio_addr_t ioaddr; int status; int IntrCnt = MACE_MAX_IR_ITERATIONS; @@ -1006,6 +1006,8 @@ static irqreturn_t mace_interrupt(int irq, void *dev_id) return IRQ_NONE; } + ioaddr = dev->base_addr; + if (lp->tx_irq_disabled) { printk( (lp->tx_irq_disabled? diff --git a/trunk/drivers/net/pcmcia/smc91c92_cs.c b/trunk/drivers/net/pcmcia/smc91c92_cs.c index 7912dbd14251..af6728cb49c3 100644 --- a/trunk/drivers/net/pcmcia/smc91c92_cs.c +++ b/trunk/drivers/net/pcmcia/smc91c92_cs.c @@ -1368,6 +1368,7 @@ static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev) kio_addr_t ioaddr = dev->base_addr; u_short num_pages; short time_out, ir; + unsigned long flags; netif_stop_queue(dev); @@ -1395,6 +1396,7 @@ static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev) /* A packet is now waiting. */ smc->packets_waiting++; + spin_lock_irqsave(&smc->lock, flags); SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */ /* need MC_RESET to keep the memory consistent. errata? */ @@ -1411,6 +1413,7 @@ static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev) /* Acknowledge the interrupt, send the packet. */ outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT); smc_hardware_send_packet(dev); /* Send the packet now.. */ + spin_unlock_irqrestore(&smc->lock, flags); return 0; } } @@ -1418,6 +1421,7 @@ static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev) /* Otherwise defer until the Tx-space-allocated interrupt. */ DEBUG(2, "%s: memory allocation deferred.\n", dev->name); outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT); + spin_unlock_irqrestore(&smc->lock, flags); return 0; } @@ -1523,6 +1527,7 @@ static irqreturn_t smc_interrupt(int irq, void *dev_id) DEBUG(3, "%s: SMC91c92 interrupt %d at %#x.\n", dev->name, irq, ioaddr); + spin_lock(&smc->lock); smc->watchdog = 0; saved_bank = inw(ioaddr + BANK_SELECT); if ((saved_bank & 0xff00) != 0x3300) { @@ -1620,6 +1625,7 @@ static irqreturn_t smc_interrupt(int irq, void *dev_id) readb(smc->base+MEGAHERTZ_ISR); } #endif + spin_unlock(&smc->lock); return IRQ_RETVAL(handled); } @@ -1902,6 +1908,9 @@ static void media_check(u_long arg) kio_addr_t ioaddr = dev->base_addr; u_short i, media, saved_bank; u_short link; + unsigned long flags; + + spin_lock_irqsave(&smc->lock, flags); saved_bank = inw(ioaddr + BANK_SELECT); @@ -1934,6 +1943,7 @@ static void media_check(u_long arg) smc->media.expires = jiffies + HZ/100; add_timer(&smc->media); SMC_SELECT_BANK(saved_bank); + spin_unlock_irqrestore(&smc->lock, flags); return; } @@ -2007,6 +2017,7 @@ static void media_check(u_long arg) smc->media.expires = jiffies + HZ; add_timer(&smc->media); SMC_SELECT_BANK(saved_bank); + spin_unlock_irqrestore(&smc->lock, flags); } static int smc_link_ok(struct net_device *dev) @@ -2094,14 +2105,14 @@ static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) u16 saved_bank = inw(ioaddr + BANK_SELECT); int ret; - SMC_SELECT_BANK(3); spin_lock_irq(&smc->lock); + SMC_SELECT_BANK(3); if (smc->cfg & CFG_MII_SELECT) ret = mii_ethtool_gset(&smc->mii_if, ecmd); else ret = smc_netdev_get_ecmd(dev, ecmd); - spin_unlock_irq(&smc->lock); SMC_SELECT_BANK(saved_bank); + spin_unlock_irq(&smc->lock); return ret; } @@ -2112,14 +2123,14 @@ static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) u16 saved_bank = inw(ioaddr + BANK_SELECT); int ret; - SMC_SELECT_BANK(3); spin_lock_irq(&smc->lock); + SMC_SELECT_BANK(3); if (smc->cfg & CFG_MII_SELECT) ret = mii_ethtool_sset(&smc->mii_if, ecmd); else ret = smc_netdev_set_ecmd(dev, ecmd); - spin_unlock_irq(&smc->lock); SMC_SELECT_BANK(saved_bank); + spin_unlock_irq(&smc->lock); return ret; } @@ -2130,11 +2141,11 @@ static u32 smc_get_link(struct net_device *dev) u16 saved_bank = inw(ioaddr + BANK_SELECT); u32 ret; - SMC_SELECT_BANK(3); spin_lock_irq(&smc->lock); + SMC_SELECT_BANK(3); ret = smc_link_ok(dev); - spin_unlock_irq(&smc->lock); SMC_SELECT_BANK(saved_bank); + spin_unlock_irq(&smc->lock); return ret; } diff --git a/trunk/drivers/net/s2io-regs.h b/trunk/drivers/net/s2io-regs.h index 4cb710bbe729..cfa267914476 100644 --- a/trunk/drivers/net/s2io-regs.h +++ b/trunk/drivers/net/s2io-regs.h @@ -747,10 +747,9 @@ struct XENA_dev_config { #define MC_ERR_REG_MIRI_CRI_ERR_1 BIT(23) #define MC_ERR_REG_SM_ERR BIT(31) #define MC_ERR_REG_ECC_ALL_SNG (BIT(2) | BIT(3) | BIT(4) | BIT(5) |\ - BIT(6) | BIT(7) | BIT(17) | BIT(19)) + BIT(17) | BIT(19)) #define MC_ERR_REG_ECC_ALL_DBL (BIT(10) | BIT(11) | BIT(12) |\ - BIT(13) | BIT(14) | BIT(15) |\ - BIT(18) | BIT(20)) + BIT(13) | BIT(18) | BIT(20)) u64 mc_err_mask; u64 mc_err_alarm; diff --git a/trunk/drivers/net/s2io.c b/trunk/drivers/net/s2io.c index afef6c0c59fe..2be0a0f1b48f 100644 --- a/trunk/drivers/net/s2io.c +++ b/trunk/drivers/net/s2io.c @@ -32,12 +32,12 @@ * rx_ring_sz: This defines the number of receive blocks each ring can have. * This is also an array of size 8. * rx_ring_mode: This defines the operation mode of all 8 rings. The valid - * values are 1, 2 and 3. + * values are 1, 2. * tx_fifo_num: This defines the number of Tx FIFOs thats used int the driver. * tx_fifo_len: This too is an array of 8. Each element defines the number of * Tx descriptors that can be associated with each corresponding FIFO. * intr_type: This defines the type of interrupt. The values can be 0(INTA), - * 1(MSI), 2(MSI_X). Default value is '0(INTA)' + * 2(MSI_X). Default value is '0(INTA)' * lro: Specifies whether to enable Large Receive Offload (LRO) or not. * Possible values '1' for enable '0' for disable. Default is '0' * lro_max_pkts: This parameter defines maximum number of packets can be @@ -84,14 +84,14 @@ #include "s2io.h" #include "s2io-regs.h" -#define DRV_VERSION "2.0.23.1" +#define DRV_VERSION "2.0.25.1" /* S2io Driver name & version. */ static char s2io_driver_name[] = "Neterion"; static char s2io_driver_version[] = DRV_VERSION; -static int rxd_size[4] = {32,48,48,64}; -static int rxd_count[4] = {127,85,85,63}; +static int rxd_size[2] = {32,48}; +static int rxd_count[2] = {127,85}; static inline int RXD_IS_UP2DT(struct RxD_t *rxdp) { @@ -282,6 +282,7 @@ static char ethtool_driver_stats_keys[][ETH_GSTRING_LEN] = { ("lro_flush_due_to_max_pkts"), ("lro_avg_aggr_pkts"), ("mem_alloc_fail_cnt"), + ("pci_map_fail_cnt"), ("watchdog_timer_cnt"), ("mem_allocated"), ("mem_freed"), @@ -426,7 +427,7 @@ S2IO_PARM_INT(bimodal, 0); S2IO_PARM_INT(l3l4hdr_size, 128); /* Frequency of Rx desc syncs expressed as power of 2 */ S2IO_PARM_INT(rxsync_frequency, 3); -/* Interrupt type. Values can be 0(INTA), 1(MSI), 2(MSI_X) */ +/* Interrupt type. Values can be 0(INTA), 2(MSI_X) */ S2IO_PARM_INT(intr_type, 0); /* Large receive offload feature */ S2IO_PARM_INT(lro, 0); @@ -701,7 +702,7 @@ static int init_shared_mem(struct s2io_nic *nic) (u64) tmp_p_addr_next; } } - if (nic->rxd_mode >= RXD_MODE_3A) { + if (nic->rxd_mode == RXD_MODE_3B) { /* * Allocation of Storages for buffer addresses in 2BUFF mode * and the buffers as well. @@ -870,7 +871,7 @@ static void free_shared_mem(struct s2io_nic *nic) } } - if (nic->rxd_mode >= RXD_MODE_3A) { + if (nic->rxd_mode == RXD_MODE_3B) { /* Freeing buffer storage addresses in 2BUFF mode. */ for (i = 0; i < config->rx_ring_num; i++) { blk_cnt = config->rx_cfg[i].num_rxd / @@ -2233,44 +2234,6 @@ static void stop_nic(struct s2io_nic *nic) writeq(val64, &bar0->adapter_control); } -static int fill_rxd_3buf(struct s2io_nic *nic, struct RxD_t *rxdp, struct \ - sk_buff *skb) -{ - struct net_device *dev = nic->dev; - struct sk_buff *frag_list; - void *tmp; - - /* Buffer-1 receives L3/L4 headers */ - ((struct RxD3*)rxdp)->Buffer1_ptr = pci_map_single - (nic->pdev, skb->data, l3l4hdr_size + 4, - PCI_DMA_FROMDEVICE); - - /* skb_shinfo(skb)->frag_list will have L4 data payload */ - skb_shinfo(skb)->frag_list = dev_alloc_skb(dev->mtu + ALIGN_SIZE); - if (skb_shinfo(skb)->frag_list == NULL) { - nic->mac_control.stats_info->sw_stat.mem_alloc_fail_cnt++; - DBG_PRINT(INFO_DBG, "%s: dev_alloc_skb failed\n ", dev->name); - return -ENOMEM ; - } - frag_list = skb_shinfo(skb)->frag_list; - skb->truesize += frag_list->truesize; - nic->mac_control.stats_info->sw_stat.mem_allocated - += frag_list->truesize; - frag_list->next = NULL; - tmp = (void *)ALIGN((long)frag_list->data, ALIGN_SIZE + 1); - frag_list->data = tmp; - skb_reset_tail_pointer(frag_list); - - /* Buffer-2 receives L4 data payload */ - ((struct RxD3*)rxdp)->Buffer2_ptr = pci_map_single(nic->pdev, - frag_list->data, dev->mtu, - PCI_DMA_FROMDEVICE); - rxdp->Control_2 |= SET_BUFFER1_SIZE_3(l3l4hdr_size + 4); - rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu); - - return SUCCESS; -} - /** * fill_rx_buffers - Allocates the Rx side skbs * @nic: device private variable @@ -2307,6 +2270,9 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no) unsigned long flags; struct RxD_t *first_rxdp = NULL; u64 Buffer0_ptr = 0, Buffer1_ptr = 0; + struct RxD1 *rxdp1; + struct RxD3 *rxdp3; + struct swStat *stats = &nic->mac_control.stats_info->sw_stat; mac_control = &nic->mac_control; config = &nic->config; @@ -2359,7 +2325,7 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no) (block_no * (rxd_count[nic->rxd_mode] + 1)) + off; } if ((rxdp->Control_1 & RXD_OWN_XENA) && - ((nic->rxd_mode >= RXD_MODE_3A) && + ((nic->rxd_mode == RXD_MODE_3B) && (rxdp->Control_2 & BIT(0)))) { mac_control->rings[ring_no].rx_curr_put_info. offset = off; @@ -2370,10 +2336,8 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no) HEADER_802_2_SIZE + HEADER_SNAP_SIZE; if (nic->rxd_mode == RXD_MODE_1) size += NET_IP_ALIGN; - else if (nic->rxd_mode == RXD_MODE_3B) - size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4; else - size = l3l4hdr_size + ALIGN_SIZE + BUF0_LEN + 4; + size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4; /* allocate skb */ skb = dev_alloc_skb(size); @@ -2392,33 +2356,35 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no) += skb->truesize; if (nic->rxd_mode == RXD_MODE_1) { /* 1 buffer mode - normal operation mode */ + rxdp1 = (struct RxD1*)rxdp; memset(rxdp, 0, sizeof(struct RxD1)); skb_reserve(skb, NET_IP_ALIGN); - ((struct RxD1*)rxdp)->Buffer0_ptr = pci_map_single + rxdp1->Buffer0_ptr = pci_map_single (nic->pdev, skb->data, size - NET_IP_ALIGN, PCI_DMA_FROMDEVICE); + if( (rxdp1->Buffer0_ptr == 0) || + (rxdp1->Buffer0_ptr == + DMA_ERROR_CODE)) + goto pci_map_failed; + rxdp->Control_2 = SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN); - } else if (nic->rxd_mode >= RXD_MODE_3A) { + } else if (nic->rxd_mode == RXD_MODE_3B) { /* - * 2 or 3 buffer mode - - * Both 2 buffer mode and 3 buffer mode provides 128 + * 2 buffer mode - + * 2 buffer mode provides 128 * byte aligned receive buffers. - * - * 3 buffer mode provides header separation where in - * skb->data will have L3/L4 headers where as - * skb_shinfo(skb)->frag_list will have the L4 data - * payload */ + rxdp3 = (struct RxD3*)rxdp; /* save buffer pointers to avoid frequent dma mapping */ - Buffer0_ptr = ((struct RxD3*)rxdp)->Buffer0_ptr; - Buffer1_ptr = ((struct RxD3*)rxdp)->Buffer1_ptr; + Buffer0_ptr = rxdp3->Buffer0_ptr; + Buffer1_ptr = rxdp3->Buffer1_ptr; memset(rxdp, 0, sizeof(struct RxD3)); /* restore the buffer pointers for dma sync*/ - ((struct RxD3*)rxdp)->Buffer0_ptr = Buffer0_ptr; - ((struct RxD3*)rxdp)->Buffer1_ptr = Buffer1_ptr; + rxdp3->Buffer0_ptr = Buffer0_ptr; + rxdp3->Buffer1_ptr = Buffer1_ptr; ba = &mac_control->rings[ring_no].ba[block_no][off]; skb_reserve(skb, BUF0_LEN); @@ -2428,14 +2394,18 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no) skb->data = (void *) (unsigned long)tmp; skb_reset_tail_pointer(skb); - if (!(((struct RxD3*)rxdp)->Buffer0_ptr)) - ((struct RxD3*)rxdp)->Buffer0_ptr = + if (!(rxdp3->Buffer0_ptr)) + rxdp3->Buffer0_ptr = pci_map_single(nic->pdev, ba->ba_0, BUF0_LEN, PCI_DMA_FROMDEVICE); else pci_dma_sync_single_for_device(nic->pdev, - (dma_addr_t) ((struct RxD3*)rxdp)->Buffer0_ptr, + (dma_addr_t) rxdp3->Buffer0_ptr, BUF0_LEN, PCI_DMA_FROMDEVICE); + if( (rxdp3->Buffer0_ptr == 0) || + (rxdp3->Buffer0_ptr == DMA_ERROR_CODE)) + goto pci_map_failed; + rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); if (nic->rxd_mode == RXD_MODE_3B) { /* Two buffer mode */ @@ -2444,33 +2414,30 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no) * Buffer2 will have L3/L4 header plus * L4 payload */ - ((struct RxD3*)rxdp)->Buffer2_ptr = pci_map_single + rxdp3->Buffer2_ptr = pci_map_single (nic->pdev, skb->data, dev->mtu + 4, PCI_DMA_FROMDEVICE); - /* Buffer-1 will be dummy buffer. Not used */ - if (!(((struct RxD3*)rxdp)->Buffer1_ptr)) { - ((struct RxD3*)rxdp)->Buffer1_ptr = + if( (rxdp3->Buffer2_ptr == 0) || + (rxdp3->Buffer2_ptr == DMA_ERROR_CODE)) + goto pci_map_failed; + + rxdp3->Buffer1_ptr = pci_map_single(nic->pdev, ba->ba_1, BUF1_LEN, PCI_DMA_FROMDEVICE); + if( (rxdp3->Buffer1_ptr == 0) || + (rxdp3->Buffer1_ptr == DMA_ERROR_CODE)) { + pci_unmap_single + (nic->pdev, + (dma_addr_t)skb->data, + dev->mtu + 4, + PCI_DMA_FROMDEVICE); + goto pci_map_failed; } rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); rxdp->Control_2 |= SET_BUFFER2_SIZE_3 (dev->mtu + 4); - } else { - /* 3 buffer mode */ - if (fill_rxd_3buf(nic, rxdp, skb) == -ENOMEM) { - nic->mac_control.stats_info->sw_stat.\ - mem_freed += skb->truesize; - dev_kfree_skb_irq(skb); - if (first_rxdp) { - wmb(); - first_rxdp->Control_1 |= - RXD_OWN_XENA; - } - return -ENOMEM ; - } } rxdp->Control_2 |= BIT(0); } @@ -2505,6 +2472,11 @@ static int fill_rx_buffers(struct s2io_nic *nic, int ring_no) } return SUCCESS; +pci_map_failed: + stats->pci_map_fail_cnt++; + stats->mem_freed += skb->truesize; + dev_kfree_skb_irq(skb); + return -ENOMEM; } static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk) @@ -2515,6 +2487,8 @@ static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk) struct RxD_t *rxdp; struct mac_info *mac_control; struct buffAdd *ba; + struct RxD1 *rxdp1; + struct RxD3 *rxdp3; mac_control = &sp->mac_control; for (j = 0 ; j < rxd_count[sp->rxd_mode]; j++) { @@ -2526,40 +2500,30 @@ static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk) continue; } if (sp->rxd_mode == RXD_MODE_1) { + rxdp1 = (struct RxD1*)rxdp; pci_unmap_single(sp->pdev, (dma_addr_t) - ((struct RxD1*)rxdp)->Buffer0_ptr, - dev->mtu + - HEADER_ETHERNET_II_802_3_SIZE - + HEADER_802_2_SIZE + - HEADER_SNAP_SIZE, - PCI_DMA_FROMDEVICE); + rxdp1->Buffer0_ptr, + dev->mtu + + HEADER_ETHERNET_II_802_3_SIZE + + HEADER_802_2_SIZE + + HEADER_SNAP_SIZE, + PCI_DMA_FROMDEVICE); memset(rxdp, 0, sizeof(struct RxD1)); } else if(sp->rxd_mode == RXD_MODE_3B) { + rxdp3 = (struct RxD3*)rxdp; ba = &mac_control->rings[ring_no]. ba[blk][j]; pci_unmap_single(sp->pdev, (dma_addr_t) - ((struct RxD3*)rxdp)->Buffer0_ptr, - BUF0_LEN, - PCI_DMA_FROMDEVICE); - pci_unmap_single(sp->pdev, (dma_addr_t) - ((struct RxD3*)rxdp)->Buffer1_ptr, - BUF1_LEN, - PCI_DMA_FROMDEVICE); - pci_unmap_single(sp->pdev, (dma_addr_t) - ((struct RxD3*)rxdp)->Buffer2_ptr, - dev->mtu + 4, - PCI_DMA_FROMDEVICE); - memset(rxdp, 0, sizeof(struct RxD3)); - } else { - pci_unmap_single(sp->pdev, (dma_addr_t) - ((struct RxD3*)rxdp)->Buffer0_ptr, BUF0_LEN, + rxdp3->Buffer0_ptr, + BUF0_LEN, PCI_DMA_FROMDEVICE); pci_unmap_single(sp->pdev, (dma_addr_t) - ((struct RxD3*)rxdp)->Buffer1_ptr, - l3l4hdr_size + 4, + rxdp3->Buffer1_ptr, + BUF1_LEN, PCI_DMA_FROMDEVICE); pci_unmap_single(sp->pdev, (dma_addr_t) - ((struct RxD3*)rxdp)->Buffer2_ptr, dev->mtu, + rxdp3->Buffer2_ptr, + dev->mtu + 4, PCI_DMA_FROMDEVICE); memset(rxdp, 0, sizeof(struct RxD3)); } @@ -2756,6 +2720,8 @@ static void rx_intr_handler(struct ring_info *ring_data) struct sk_buff *skb; int pkt_cnt = 0; int i; + struct RxD1* rxdp1; + struct RxD3* rxdp3; spin_lock(&nic->rx_lock); if (atomic_read(&nic->card_state) == CARD_DOWN) { @@ -2796,32 +2762,23 @@ static void rx_intr_handler(struct ring_info *ring_data) return; } if (nic->rxd_mode == RXD_MODE_1) { + rxdp1 = (struct RxD1*)rxdp; pci_unmap_single(nic->pdev, (dma_addr_t) - ((struct RxD1*)rxdp)->Buffer0_ptr, - dev->mtu + - HEADER_ETHERNET_II_802_3_SIZE + - HEADER_802_2_SIZE + - HEADER_SNAP_SIZE, - PCI_DMA_FROMDEVICE); + rxdp1->Buffer0_ptr, + dev->mtu + + HEADER_ETHERNET_II_802_3_SIZE + + HEADER_802_2_SIZE + + HEADER_SNAP_SIZE, + PCI_DMA_FROMDEVICE); } else if (nic->rxd_mode == RXD_MODE_3B) { + rxdp3 = (struct RxD3*)rxdp; pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t) - ((struct RxD3*)rxdp)->Buffer0_ptr, - BUF0_LEN, PCI_DMA_FROMDEVICE); - pci_unmap_single(nic->pdev, (dma_addr_t) - ((struct RxD3*)rxdp)->Buffer2_ptr, - dev->mtu + 4, - PCI_DMA_FROMDEVICE); - } else { - pci_dma_sync_single_for_cpu(nic->pdev, (dma_addr_t) - ((struct RxD3*)rxdp)->Buffer0_ptr, BUF0_LEN, - PCI_DMA_FROMDEVICE); - pci_unmap_single(nic->pdev, (dma_addr_t) - ((struct RxD3*)rxdp)->Buffer1_ptr, - l3l4hdr_size + 4, - PCI_DMA_FROMDEVICE); + rxdp3->Buffer0_ptr, + BUF0_LEN, PCI_DMA_FROMDEVICE); pci_unmap_single(nic->pdev, (dma_addr_t) - ((struct RxD3*)rxdp)->Buffer2_ptr, - dev->mtu, PCI_DMA_FROMDEVICE); + rxdp3->Buffer2_ptr, + dev->mtu + 4, + PCI_DMA_FROMDEVICE); } prefetch(skb->data); rx_osm_handler(ring_data, rxdp); @@ -3425,23 +3382,8 @@ static void s2io_reset(struct s2io_nic * sp) /* Back up the PCI-X CMD reg, dont want to lose MMRBC, OST settings */ pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd)); - if (sp->device_type == XFRAME_II_DEVICE) { - int ret; - ret = pci_set_power_state(sp->pdev, 3); - if (!ret) - ret = pci_set_power_state(sp->pdev, 0); - else { - DBG_PRINT(ERR_DBG,"%s PME based SW_Reset failed!\n", - __FUNCTION__); - goto old_way; - } - msleep(20); - goto new_way; - } -old_way: val64 = SW_RESET_ALL; writeq(val64, &bar0->sw_reset); -new_way: if (strstr(sp->product_name, "CX4")) { msleep(750); } @@ -3731,56 +3673,6 @@ static void store_xmsi_data(struct s2io_nic *nic) } } -int s2io_enable_msi(struct s2io_nic *nic) -{ - struct XENA_dev_config __iomem *bar0 = nic->bar0; - u16 msi_ctrl, msg_val; - struct config_param *config = &nic->config; - struct net_device *dev = nic->dev; - u64 val64, tx_mat, rx_mat; - int i, err; - - val64 = readq(&bar0->pic_control); - val64 &= ~BIT(1); - writeq(val64, &bar0->pic_control); - - err = pci_enable_msi(nic->pdev); - if (err) { - DBG_PRINT(ERR_DBG, "%s: enabling MSI failed\n", - nic->dev->name); - return err; - } - - /* - * Enable MSI and use MSI-1 in stead of the standard MSI-0 - * for interrupt handling. - */ - pci_read_config_word(nic->pdev, 0x4c, &msg_val); - msg_val ^= 0x1; - pci_write_config_word(nic->pdev, 0x4c, msg_val); - pci_read_config_word(nic->pdev, 0x4c, &msg_val); - - pci_read_config_word(nic->pdev, 0x42, &msi_ctrl); - msi_ctrl |= 0x10; - pci_write_config_word(nic->pdev, 0x42, msi_ctrl); - - /* program MSI-1 into all usable Tx_Mat and Rx_Mat fields */ - tx_mat = readq(&bar0->tx_mat0_n[0]); - for (i=0; itx_fifo_num; i++) { - tx_mat |= TX_MAT_SET(i, 1); - } - writeq(tx_mat, &bar0->tx_mat0_n[0]); - - rx_mat = readq(&bar0->rx_mat); - for (i=0; irx_ring_num; i++) { - rx_mat |= RX_MAT_SET(i, 1); - } - writeq(rx_mat, &bar0->rx_mat); - - dev->irq = nic->pdev->irq; - return 0; -} - static int s2io_enable_msi_x(struct s2io_nic *nic) { struct XENA_dev_config __iomem *bar0 = nic->bar0; @@ -4001,6 +3893,7 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) struct mac_info *mac_control; struct config_param *config; int offload_type; + struct swStat *stats = &sp->mac_control.stats_info->sw_stat; mac_control = &sp->mac_control; config = &sp->config; @@ -4085,11 +3978,18 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) txdp->Buffer_Pointer = pci_map_single(sp->pdev, sp->ufo_in_band_v, sizeof(u64), PCI_DMA_TODEVICE); + if((txdp->Buffer_Pointer == 0) || + (txdp->Buffer_Pointer == DMA_ERROR_CODE)) + goto pci_map_failed; txdp++; } txdp->Buffer_Pointer = pci_map_single (sp->pdev, skb->data, frg_len, PCI_DMA_TODEVICE); + if((txdp->Buffer_Pointer == 0) || + (txdp->Buffer_Pointer == DMA_ERROR_CODE)) + goto pci_map_failed; + txdp->Host_Control = (unsigned long) skb; txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len); if (offload_type == SKB_GSO_UDP) @@ -4145,6 +4045,13 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) dev->trans_start = jiffies; spin_unlock_irqrestore(&sp->tx_lock, flags); + return 0; +pci_map_failed: + stats->pci_map_fail_cnt++; + netif_stop_queue(dev); + stats->mem_freed += skb->truesize; + dev_kfree_skb(skb); + spin_unlock_irqrestore(&sp->tx_lock, flags); return 0; } @@ -4186,39 +4093,6 @@ static int s2io_chk_rx_buffers(struct s2io_nic *sp, int rng_n) return 0; } -static irqreturn_t s2io_msi_handle(int irq, void *dev_id) -{ - struct net_device *dev = (struct net_device *) dev_id; - struct s2io_nic *sp = dev->priv; - int i; - struct mac_info *mac_control; - struct config_param *config; - - atomic_inc(&sp->isr_cnt); - mac_control = &sp->mac_control; - config = &sp->config; - DBG_PRINT(INTR_DBG, "%s: MSI handler\n", __FUNCTION__); - - /* If Intr is because of Rx Traffic */ - for (i = 0; i < config->rx_ring_num; i++) - rx_intr_handler(&mac_control->rings[i]); - - /* If Intr is because of Tx Traffic */ - for (i = 0; i < config->tx_fifo_num; i++) - tx_intr_handler(&mac_control->fifos[i]); - - /* - * If the Rx buffer count is below the panic threshold then - * reallocate the buffers from the interrupt handler itself, - * else schedule a tasklet to reallocate the buffers. - */ - for (i = 0; i < config->rx_ring_num; i++) - s2io_chk_rx_buffers(sp, i); - - atomic_dec(&sp->isr_cnt); - return IRQ_HANDLED; -} - static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id) { struct ring_info *ring = (struct ring_info *)dev_id; @@ -4927,19 +4801,17 @@ static void s2io_ethtool_gringparam(struct net_device *dev, ering->rx_max_pending = MAX_RX_DESC_1; else if (sp->rxd_mode == RXD_MODE_3B) ering->rx_max_pending = MAX_RX_DESC_2; - else if (sp->rxd_mode == RXD_MODE_3A) - ering->rx_max_pending = MAX_RX_DESC_3; ering->tx_max_pending = MAX_TX_DESC; - for (i = 0 ; i < sp->config.tx_fifo_num ; i++) { + for (i = 0 ; i < sp->config.tx_fifo_num ; i++) tx_desc_count += sp->config.tx_cfg[i].fifo_len; - } + DBG_PRINT(INFO_DBG,"\nmax txds : %d\n",sp->config.max_txds); ering->tx_pending = tx_desc_count; rx_desc_count = 0; - for (i = 0 ; i < sp->config.rx_ring_num ; i++) { + for (i = 0 ; i < sp->config.rx_ring_num ; i++) rx_desc_count += sp->config.rx_cfg[i].num_rxd; - } + ering->rx_pending = rx_desc_count; ering->rx_mini_max_pending = 0; @@ -5923,6 +5795,7 @@ static void s2io_get_ethtool_stats(struct net_device *dev, else tmp_stats[i++] = 0; tmp_stats[i++] = stat_info->sw_stat.mem_alloc_fail_cnt; + tmp_stats[i++] = stat_info->sw_stat.pci_map_fail_cnt; tmp_stats[i++] = stat_info->sw_stat.watchdog_timer_cnt; tmp_stats[i++] = stat_info->sw_stat.mem_allocated; tmp_stats[i++] = stat_info->sw_stat.mem_freed; @@ -6266,9 +6139,10 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, u64 *temp2, int size) { struct net_device *dev = sp->dev; - struct sk_buff *frag_list; + struct swStat *stats = &sp->mac_control.stats_info->sw_stat; if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) { + struct RxD1 *rxdp1 = (struct RxD1 *)rxdp; /* allocate skb */ if (*skb) { DBG_PRINT(INFO_DBG, "SKB is not NULL\n"); @@ -6277,7 +6151,7 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, * using same mapped address for the Rxd * buffer pointer */ - ((struct RxD1*)rxdp)->Buffer0_ptr = *temp0; + rxdp1->Buffer0_ptr = *temp0; } else { *skb = dev_alloc_skb(size); if (!(*skb)) { @@ -6294,18 +6168,23 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, * such it will be used for next rxd whose * Host Control is NULL */ - ((struct RxD1*)rxdp)->Buffer0_ptr = *temp0 = + rxdp1->Buffer0_ptr = *temp0 = pci_map_single( sp->pdev, (*skb)->data, size - NET_IP_ALIGN, PCI_DMA_FROMDEVICE); + if( (rxdp1->Buffer0_ptr == 0) || + (rxdp1->Buffer0_ptr == DMA_ERROR_CODE)) { + goto memalloc_failed; + } rxdp->Host_Control = (unsigned long) (*skb); } } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) { + struct RxD3 *rxdp3 = (struct RxD3 *)rxdp; /* Two buffer Mode */ if (*skb) { - ((struct RxD3*)rxdp)->Buffer2_ptr = *temp2; - ((struct RxD3*)rxdp)->Buffer0_ptr = *temp0; - ((struct RxD3*)rxdp)->Buffer1_ptr = *temp1; + rxdp3->Buffer2_ptr = *temp2; + rxdp3->Buffer0_ptr = *temp0; + rxdp3->Buffer1_ptr = *temp1; } else { *skb = dev_alloc_skb(size); if (!(*skb)) { @@ -6318,73 +6197,47 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, } sp->mac_control.stats_info->sw_stat.mem_allocated += (*skb)->truesize; - ((struct RxD3*)rxdp)->Buffer2_ptr = *temp2 = + rxdp3->Buffer2_ptr = *temp2 = pci_map_single(sp->pdev, (*skb)->data, dev->mtu + 4, PCI_DMA_FROMDEVICE); - ((struct RxD3*)rxdp)->Buffer0_ptr = *temp0 = + if( (rxdp3->Buffer2_ptr == 0) || + (rxdp3->Buffer2_ptr == DMA_ERROR_CODE)) { + goto memalloc_failed; + } + rxdp3->Buffer0_ptr = *temp0 = pci_map_single( sp->pdev, ba->ba_0, BUF0_LEN, PCI_DMA_FROMDEVICE); + if( (rxdp3->Buffer0_ptr == 0) || + (rxdp3->Buffer0_ptr == DMA_ERROR_CODE)) { + pci_unmap_single (sp->pdev, + (dma_addr_t)(*skb)->data, + dev->mtu + 4, PCI_DMA_FROMDEVICE); + goto memalloc_failed; + } rxdp->Host_Control = (unsigned long) (*skb); /* Buffer-1 will be dummy buffer not used */ - ((struct RxD3*)rxdp)->Buffer1_ptr = *temp1 = + rxdp3->Buffer1_ptr = *temp1 = pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN, - PCI_DMA_FROMDEVICE); - } - } else if ((rxdp->Host_Control == 0)) { - /* Three buffer mode */ - if (*skb) { - ((struct RxD3*)rxdp)->Buffer0_ptr = *temp0; - ((struct RxD3*)rxdp)->Buffer1_ptr = *temp1; - ((struct RxD3*)rxdp)->Buffer2_ptr = *temp2; - } else { - *skb = dev_alloc_skb(size); - if (!(*skb)) { - DBG_PRINT(INFO_DBG, "%s: Out of ", dev->name); - DBG_PRINT(INFO_DBG, "memory to allocate "); - DBG_PRINT(INFO_DBG, "3 buf mode SKBs\n"); - sp->mac_control.stats_info->sw_stat. \ - mem_alloc_fail_cnt++; - return -ENOMEM; - } - sp->mac_control.stats_info->sw_stat.mem_allocated - += (*skb)->truesize; - ((struct RxD3*)rxdp)->Buffer0_ptr = *temp0 = - pci_map_single(sp->pdev, ba->ba_0, BUF0_LEN, - PCI_DMA_FROMDEVICE); - /* Buffer-1 receives L3/L4 headers */ - ((struct RxD3*)rxdp)->Buffer1_ptr = *temp1 = - pci_map_single( sp->pdev, (*skb)->data, - l3l4hdr_size + 4, PCI_DMA_FROMDEVICE); - /* - * skb_shinfo(skb)->frag_list will have L4 - * data payload - */ - skb_shinfo(*skb)->frag_list = dev_alloc_skb(dev->mtu + - ALIGN_SIZE); - if (skb_shinfo(*skb)->frag_list == NULL) { - DBG_PRINT(ERR_DBG, "%s: dev_alloc_skb \ - failed\n ", dev->name); - sp->mac_control.stats_info->sw_stat. \ - mem_alloc_fail_cnt++; - return -ENOMEM ; + if( (rxdp3->Buffer1_ptr == 0) || + (rxdp3->Buffer1_ptr == DMA_ERROR_CODE)) { + pci_unmap_single (sp->pdev, + (dma_addr_t)(*skb)->data, + dev->mtu + 4, PCI_DMA_FROMDEVICE); + goto memalloc_failed; } - frag_list = skb_shinfo(*skb)->frag_list; - frag_list->next = NULL; - sp->mac_control.stats_info->sw_stat.mem_allocated - += frag_list->truesize; - /* - * Buffer-2 receives L4 data payload - */ - ((struct RxD3*)rxdp)->Buffer2_ptr = *temp2 = - pci_map_single( sp->pdev, frag_list->data, - dev->mtu, PCI_DMA_FROMDEVICE); } } return 0; + memalloc_failed: + stats->pci_map_fail_cnt++; + stats->mem_freed += (*skb)->truesize; + dev_kfree_skb(*skb); + return -ENOMEM; } + static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp, int size) { @@ -6395,10 +6248,6 @@ static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp, rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1); rxdp->Control_2 |= SET_BUFFER2_SIZE_3( dev->mtu + 4); - } else { - rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); - rxdp->Control_2 |= SET_BUFFER1_SIZE_3(l3l4hdr_size + 4); - rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu); } } @@ -6420,8 +6269,6 @@ static int rxd_owner_bit_reset(struct s2io_nic *sp) size += NET_IP_ALIGN; else if (sp->rxd_mode == RXD_MODE_3B) size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4; - else - size = l3l4hdr_size + ALIGN_SIZE + BUF0_LEN + 4; for (i = 0; i < config->rx_ring_num; i++) { blk_cnt = config->rx_cfg[i].num_rxd / @@ -6431,7 +6278,7 @@ static int rxd_owner_bit_reset(struct s2io_nic *sp) for (k = 0; k < rxd_count[sp->rxd_mode]; k++) { rxdp = mac_control->rings[i]. rx_blocks[j].rxds[k].virt_addr; - if(sp->rxd_mode >= RXD_MODE_3A) + if(sp->rxd_mode == RXD_MODE_3B) ba = &mac_control->rings[i].ba[j][k]; if (set_rxd_buffer_pointer(sp, rxdp, ba, &skb,(u64 *)&temp0_64, @@ -6458,9 +6305,7 @@ static int s2io_add_isr(struct s2io_nic * sp) struct net_device *dev = sp->dev; int err = 0; - if (sp->intr_type == MSI) - ret = s2io_enable_msi(sp); - else if (sp->intr_type == MSI_X) + if (sp->intr_type == MSI_X) ret = s2io_enable_msi_x(sp); if (ret) { DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name); @@ -6471,16 +6316,6 @@ static int s2io_add_isr(struct s2io_nic * sp) store_xmsi_data(sp); /* After proper initialization of H/W, register ISR */ - if (sp->intr_type == MSI) { - err = request_irq((int) sp->pdev->irq, s2io_msi_handle, - IRQF_SHARED, sp->name, dev); - if (err) { - pci_disable_msi(sp->pdev); - DBG_PRINT(ERR_DBG, "%s: MSI registration failed\n", - dev->name); - return -1; - } - } if (sp->intr_type == MSI_X) { int i, msix_tx_cnt=0,msix_rx_cnt=0; @@ -6567,14 +6402,6 @@ static void s2io_rem_isr(struct s2io_nic * sp) pci_disable_msix(sp->pdev); } else { free_irq(sp->pdev->irq, dev); - if (sp->intr_type == MSI) { - u16 val; - - pci_disable_msi(sp->pdev); - pci_read_config_word(sp->pdev, 0x4c, &val); - val ^= 0x1; - pci_write_config_word(sp->pdev, 0x4c, val); - } } /* Waiting till all Interrupt handlers are complete */ cnt = 0; @@ -6907,6 +6734,7 @@ static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp) } /* Updating statistics */ + sp->stats.rx_packets++; rxdp->Host_Control = 0; if (sp->rxd_mode == RXD_MODE_1) { int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2); @@ -6914,7 +6742,7 @@ static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp) sp->stats.rx_bytes += len; skb_put(skb, len); - } else if (sp->rxd_mode >= RXD_MODE_3A) { + } else if (sp->rxd_mode == RXD_MODE_3B) { int get_block = ring_data->rx_curr_get_info.block_index; int get_off = ring_data->rx_curr_get_info.offset; int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2); @@ -6924,18 +6752,7 @@ static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp) struct buffAdd *ba = &ring_data->ba[get_block][get_off]; sp->stats.rx_bytes += buf0_len + buf2_len; memcpy(buff, ba->ba_0, buf0_len); - - if (sp->rxd_mode == RXD_MODE_3A) { - int buf1_len = RXD_GET_BUFFER1_SIZE_3(rxdp->Control_2); - - skb_put(skb, buf1_len); - skb->len += buf2_len; - skb->data_len += buf2_len; - skb_put(skb_shinfo(skb)->frag_list, buf2_len); - sp->stats.rx_bytes += buf1_len; - - } else - skb_put(skb, buf2_len); + skb_put(skb, buf2_len); } if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) && ((!sp->lro) || @@ -7131,7 +6948,7 @@ static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type) *dev_intr_type = INTA; } #else - if (*dev_intr_type > MSI_X) { + if ((*dev_intr_type != INTA) && (*dev_intr_type != MSI_X)) { DBG_PRINT(ERR_DBG, "s2io: Wrong intr_type requested. " "Defaulting to INTA\n"); *dev_intr_type = INTA; @@ -7145,10 +6962,10 @@ static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type) *dev_intr_type = INTA; } - if (rx_ring_mode > 3) { + if ((rx_ring_mode != 1) && (rx_ring_mode != 2)) { DBG_PRINT(ERR_DBG, "s2io: Requested ring mode not supported\n"); - DBG_PRINT(ERR_DBG, "s2io: Defaulting to 3-buffer mode\n"); - rx_ring_mode = 3; + DBG_PRINT(ERR_DBG, "s2io: Defaulting to 1-buffer mode\n"); + rx_ring_mode = 1; } return SUCCESS; } @@ -7240,28 +7057,10 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) pci_disable_device(pdev); return -ENOMEM; } - if (dev_intr_type != MSI_X) { - if (pci_request_regions(pdev, s2io_driver_name)) { - DBG_PRINT(ERR_DBG, "Request Regions failed\n"); - pci_disable_device(pdev); - return -ENODEV; - } - } - else { - if (!(request_mem_region(pci_resource_start(pdev, 0), - pci_resource_len(pdev, 0), s2io_driver_name))) { - DBG_PRINT(ERR_DBG, "bar0 Request Regions failed\n"); - pci_disable_device(pdev); - return -ENODEV; - } - if (!(request_mem_region(pci_resource_start(pdev, 2), - pci_resource_len(pdev, 2), s2io_driver_name))) { - DBG_PRINT(ERR_DBG, "bar1 Request Regions failed\n"); - release_mem_region(pci_resource_start(pdev, 0), - pci_resource_len(pdev, 0)); - pci_disable_device(pdev); - return -ENODEV; - } + if ((ret = pci_request_regions(pdev, s2io_driver_name))) { + DBG_PRINT(ERR_DBG, "%s: Request Regions failed - %x \n", __FUNCTION__, ret); + pci_disable_device(pdev); + return -ENODEV; } dev = alloc_etherdev(sizeof(struct s2io_nic)); @@ -7288,8 +7087,6 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) sp->rxd_mode = RXD_MODE_1; if (rx_ring_mode == 2) sp->rxd_mode = RXD_MODE_3B; - if (rx_ring_mode == 3) - sp->rxd_mode = RXD_MODE_3A; sp->intr_type = dev_intr_type; @@ -7565,10 +7362,6 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n", dev->name); break; - case RXD_MODE_3A: - DBG_PRINT(ERR_DBG, "%s: 3-Buffer receive mode enabled\n", - dev->name); - break; } if (napi) @@ -7577,9 +7370,6 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) case INTA: DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name); break; - case MSI: - DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI\n", dev->name); - break; case MSI_X: DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name); break; @@ -7619,14 +7409,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) mem_alloc_failed: free_shared_mem(sp); pci_disable_device(pdev); - if (dev_intr_type != MSI_X) - pci_release_regions(pdev); - else { - release_mem_region(pci_resource_start(pdev, 0), - pci_resource_len(pdev, 0)); - release_mem_region(pci_resource_start(pdev, 2), - pci_resource_len(pdev, 2)); - } + pci_release_regions(pdev); pci_set_drvdata(pdev, NULL); free_netdev(dev); @@ -7661,14 +7444,7 @@ static void __devexit s2io_rem_nic(struct pci_dev *pdev) free_shared_mem(sp); iounmap(sp->bar0); iounmap(sp->bar1); - if (sp->intr_type != MSI_X) - pci_release_regions(pdev); - else { - release_mem_region(pci_resource_start(pdev, 0), - pci_resource_len(pdev, 0)); - release_mem_region(pci_resource_start(pdev, 2), - pci_resource_len(pdev, 2)); - } + pci_release_regions(pdev); pci_set_drvdata(pdev, NULL); free_netdev(dev); pci_disable_device(pdev); diff --git a/trunk/drivers/net/s2io.h b/trunk/drivers/net/s2io.h index 3887fe63a908..92983ee7df8c 100644 --- a/trunk/drivers/net/s2io.h +++ b/trunk/drivers/net/s2io.h @@ -74,6 +74,10 @@ static int debug_level = ERR_DBG; /* DEBUG message print. */ #define DBG_PRINT(dbg_level, args...) if(!(debug_levelpc_err) return ; diff --git a/trunk/drivers/net/tulip/tulip_core.c b/trunk/drivers/net/tulip/tulip_core.c index f87d76981ab7..eca984f89bbf 100644 --- a/trunk/drivers/net/tulip/tulip_core.c +++ b/trunk/drivers/net/tulip/tulip_core.c @@ -1471,14 +1471,6 @@ static int __devinit tulip_init_one (struct pci_dev *pdev, sa_offset = 2; /* Grrr, damn Matrox boards. */ multiport_cnt = 4; } -#ifdef CONFIG_DDB5477 - if ((pdev->bus->number == 0) && (PCI_SLOT(pdev->devfn) == 4)) { - /* DDB5477 MAC address in first EEPROM locations. */ - sa_offset = 0; - /* No media table either */ - tp->flags &= ~HAS_MEDIA_TABLE; - } -#endif #ifdef CONFIG_MIPS_COBALT if ((pdev->bus->number == 0) && ((PCI_SLOT(pdev->devfn) == 7) || diff --git a/trunk/drivers/net/usb/pegasus.c b/trunk/drivers/net/usb/pegasus.c index a05fd97e5bc2..04cba6bf3d54 100644 --- a/trunk/drivers/net/usb/pegasus.c +++ b/trunk/drivers/net/usb/pegasus.c @@ -768,11 +768,13 @@ static void rx_fixup(unsigned long data) static void write_bulk_callback(struct urb *urb) { pegasus_t *pegasus = urb->context; - struct net_device *net = pegasus->net; + struct net_device *net; if (!pegasus) return; + net = pegasus->net; + if (!netif_device_present(net) || !netif_running(net)) return; diff --git a/trunk/drivers/net/via-velocity.c b/trunk/drivers/net/via-velocity.c index f331843d1102..93574add4063 100644 --- a/trunk/drivers/net/via-velocity.c +++ b/trunk/drivers/net/via-velocity.c @@ -1613,7 +1613,7 @@ static void velocity_error(struct velocity_info *vptr, int status) if (status & ISR_TXSTLI) { struct mac_regs __iomem * regs = vptr->mac_regs; - printk(KERN_ERR "TD structure errror TDindex=%hx\n", readw(®s->TDIdx[0])); + printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(®s->TDIdx[0])); BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR); writew(TRDCSR_RUN, ®s->TDCSRClr); netif_stop_queue(vptr->dev); diff --git a/trunk/drivers/parport/parport_pc.c b/trunk/drivers/parport/parport_pc.c index 5d58ad55d85c..e2be84001105 100644 --- a/trunk/drivers/parport/parport_pc.c +++ b/trunk/drivers/parport/parport_pc.c @@ -3445,7 +3445,6 @@ static void __exit parport_pc_exit(void) pnp_unregister_driver (&parport_pc_pnp_driver); platform_driver_unregister(&parport_pc_platform_driver); - spin_lock(&ports_lock); while (!list_empty(&ports_list)) { struct parport_pc_private *priv; struct parport *port; @@ -3455,11 +3454,8 @@ static void __exit parport_pc_exit(void) if (port->dev && port->dev->bus == &platform_bus_type) platform_device_unregister( to_platform_device(port->dev)); - spin_unlock(&ports_lock); parport_pc_unregister_port(port); - spin_lock(&ports_lock); } - spin_unlock(&ports_lock); } MODULE_AUTHOR("Phil Blundell, Tim Waugh, others"); diff --git a/trunk/drivers/pci/pci.c b/trunk/drivers/pci/pci.c index fba319d6fcc8..1ee9cd9c86e2 100644 --- a/trunk/drivers/pci/pci.c +++ b/trunk/drivers/pci/pci.c @@ -1517,7 +1517,7 @@ EXPORT_SYMBOL(pcie_get_readrq); /** * pcie_set_readrq - set PCI Express maximum memory read request * @dev: PCI device to query - * @count: maximum memory read count in bytes + * @rq: maximum memory read count in bytes * valid values are 128, 256, 512, 1024, 2048, 4096 * * If possible sets maximum read byte count diff --git a/trunk/drivers/pcmcia/cs.c b/trunk/drivers/pcmcia/cs.c index 7c93a108f9b8..f8b13f0270d7 100644 --- a/trunk/drivers/pcmcia/cs.c +++ b/trunk/drivers/pcmcia/cs.c @@ -409,6 +409,9 @@ static void socket_shutdown(struct pcmcia_socket *s) #endif s->functions = 0; + /* give socket some time to power down */ + msleep(100); + s->ops->get_status(s, &status); if (status & SS_POWERON) { printk(KERN_ERR "PCMCIA: socket %p: *** DANGER *** unable to remove socket power\n", s); diff --git a/trunk/drivers/rtc/Kconfig b/trunk/drivers/rtc/Kconfig index 9d8d40d5c8f7..ff9e35cb308d 100644 --- a/trunk/drivers/rtc/Kconfig +++ b/trunk/drivers/rtc/Kconfig @@ -2,15 +2,13 @@ # RTC class/drivers configuration # -menu "Real Time Clock" - depends on !S390 - config RTC_LIB tristate -config RTC_CLASS - tristate "RTC class" +menuconfig RTC_CLASS + tristate "Real Time Clock" default n + depends on !S390 select RTC_LIB help Generic RTC class support. If you say yes here, you will @@ -20,6 +18,8 @@ config RTC_CLASS This driver can also be built as a module. If so, the module will be called rtc-class. +if RTC_CLASS + config RTC_HCTOSYS bool "Set system time from RTC on startup and resume" depends on RTC_CLASS = y @@ -58,11 +58,10 @@ config RTC_DEBUG and individual RTC drivers. comment "RTC interfaces" - depends on RTC_CLASS config RTC_INTF_SYSFS boolean "/sys/class/rtc/rtcN (sysfs)" - depends on RTC_CLASS && SYSFS + depends on SYSFS default RTC_CLASS help Say yes here if you want to use your RTCs using sysfs interfaces, @@ -73,7 +72,7 @@ config RTC_INTF_SYSFS config RTC_INTF_PROC boolean "/proc/driver/rtc (procfs for rtc0)" - depends on RTC_CLASS && PROC_FS + depends on PROC_FS default RTC_CLASS help Say yes here if you want to use your first RTC through the proc @@ -85,7 +84,6 @@ config RTC_INTF_PROC config RTC_INTF_DEV boolean "/dev/rtcN (character devices)" - depends on RTC_CLASS default RTC_CLASS help Say yes here if you want to use your RTCs using the /dev @@ -107,7 +105,6 @@ config RTC_INTF_DEV_UIE_EMUL config RTC_DRV_TEST tristate "Test driver/device" - depends on RTC_CLASS help If you say yes here you get support for the RTC test driver. It's a software RTC which can be @@ -121,11 +118,12 @@ config RTC_DRV_TEST will be called rtc-test. comment "I2C RTC drivers" - depends on RTC_CLASS && I2C + depends on I2C + +if I2C config RTC_DRV_DS1307 tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00" - depends on RTC_CLASS && I2C help If you say yes here you get support for various compatible RTC chips (often with battery backup) connected with I2C. This driver @@ -143,7 +141,6 @@ config RTC_DRV_DS1307 config RTC_DRV_DS1672 tristate "Dallas/Maxim DS1672" - depends on RTC_CLASS && I2C help If you say yes here you get support for the Dallas/Maxim DS1672 timekeeping chip. @@ -153,7 +150,6 @@ config RTC_DRV_DS1672 config RTC_DRV_MAX6900 tristate "Maxim 6900" - depends on RTC_CLASS && I2C help If you say yes here you will get support for the Maxim MAX6900 I2C RTC chip. @@ -163,7 +159,6 @@ config RTC_DRV_MAX6900 config RTC_DRV_RS5C372 tristate "Ricoh RS5C372A/B, RV5C386, RV5C387A" - depends on RTC_CLASS && I2C help If you say yes here you get support for the Ricoh RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips. @@ -173,7 +168,6 @@ config RTC_DRV_RS5C372 config RTC_DRV_ISL1208 tristate "Intersil 1208" - depends on RTC_CLASS && I2C help If you say yes here you get support for the Intersil 1208 RTC chip. @@ -183,7 +177,6 @@ config RTC_DRV_ISL1208 config RTC_DRV_X1205 tristate "Xicor/Intersil X1205" - depends on RTC_CLASS && I2C help If you say yes here you get support for the Xicor/Intersil X1205 RTC chip. @@ -193,7 +186,6 @@ config RTC_DRV_X1205 config RTC_DRV_PCF8563 tristate "Philips PCF8563/Epson RTC8564" - depends on RTC_CLASS && I2C help If you say yes here you get support for the Philips PCF8563 RTC chip. The Epson RTC8564 @@ -204,7 +196,6 @@ config RTC_DRV_PCF8563 config RTC_DRV_PCF8583 tristate "Philips PCF8583" - depends on RTC_CLASS && I2C help If you say yes here you get support for the Philips PCF8583 RTC chip found on Acorn RiscPCs. This driver supports the @@ -217,7 +208,6 @@ config RTC_DRV_PCF8583 config RTC_DRV_M41T80 tristate "ST M41T80 series RTC" - depends on RTC_CLASS && I2C help If you say Y here you will get support for the ST M41T80 RTC chips series. Currently following chips are @@ -236,19 +226,21 @@ config RTC_DRV_M41T80_WDT config RTC_DRV_TWL92330 boolean "TI TWL92330/Menelaus" - depends on RTC_CLASS && I2C && MENELAUS + depends on MENELAUS help If you say yes here you get support for the RTC on the TWL92330 "Menelaus" power mangement chip, used with OMAP2 platforms. The support is integrated with the rest of the Menelaus driver; it's not separate module. +endif # I2C + comment "SPI RTC drivers" - depends on RTC_CLASS && SPI_MASTER + +if SPI_MASTER config RTC_DRV_RS5C348 tristate "Ricoh RS5C348A/B" - depends on RTC_CLASS && SPI_MASTER help If you say yes here you get support for the Ricoh RS5C348A and RS5C348B RTC chips. @@ -258,7 +250,6 @@ config RTC_DRV_RS5C348 config RTC_DRV_MAX6902 tristate "Maxim 6902" - depends on RTC_CLASS && SPI_MASTER help If you say yes here you will get support for the Maxim MAX6902 SPI RTC chip. @@ -266,8 +257,9 @@ config RTC_DRV_MAX6902 This driver can also be built as a module. If so, the module will be called rtc-max6902. +endif # SPI_MASTER + comment "Platform RTC drivers" - depends on RTC_CLASS # this 'CMOS' RTC driver is arch dependent because # requires defining CMOS_READ/CMOS_WRITE, and a @@ -275,8 +267,7 @@ comment "Platform RTC drivers" config RTC_DRV_CMOS tristate "PC-style 'CMOS'" - depends on RTC_CLASS && (X86 || ALPHA || ARM26 || ARM \ - || M32R || ATARI || PPC || MIPS) + depends on X86 || ALPHA || ARM || M32R || ATARI || PPC || MIPS help Say "yes" here to get direct support for the real time clock found in every PC or ACPI-based system, and some other boards. @@ -294,13 +285,12 @@ config RTC_DRV_CMOS config RTC_DRV_DS1216 tristate "Dallas DS1216" - depends on RTC_CLASS && SNI_RM + depends on SNI_RM help If you say yes here you get support for the Dallas DS1216 RTC chips. config RTC_DRV_DS1553 tristate "Dallas DS1553" - depends on RTC_CLASS help If you say yes here you get support for the Dallas DS1553 timekeeping chip. @@ -320,7 +310,6 @@ config RTC_DRV_STK17TA8 config RTC_DRV_DS1742 tristate "Dallas DS1742/1743" - depends on RTC_CLASS help If you say yes here you get support for the Dallas DS1742/1743 timekeeping chip. @@ -330,7 +319,6 @@ config RTC_DRV_DS1742 config RTC_DRV_M48T86 tristate "ST M48T86/Dallas DS12887" - depends on RTC_CLASS help If you say Y here you will get support for the ST M48T86 and Dallas DS12887 RTC chips. @@ -340,7 +328,6 @@ config RTC_DRV_M48T86 config RTC_DRV_M48T59 tristate "ST M48T59" - depends on RTC_CLASS help If you say Y here you will get support for the ST M48T59 RTC chip. @@ -350,7 +337,6 @@ config RTC_DRV_M48T59 config RTC_DRV_V3020 tristate "EM Microelectronic V3020" - depends on RTC_CLASS help If you say yes here you will get support for the EM Microelectronic v3020 RTC chip. @@ -359,19 +345,17 @@ config RTC_DRV_V3020 will be called rtc-v3020. comment "on-CPU RTC drivers" - depends on RTC_CLASS config RTC_DRV_OMAP tristate "TI OMAP1" - depends on RTC_CLASS && ( \ - ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 ) + depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 help Say "yes" here to support the real time clock on TI OMAP1 chips. This driver can also be built as a module called rtc-omap. config RTC_DRV_S3C tristate "Samsung S3C series SoC RTC" - depends on RTC_CLASS && ARCH_S3C2410 + depends on ARCH_S3C2410 help RTC (Realtime Clock) driver for the clock inbuilt into the Samsung S3C24XX series of SoCs. This can provide periodic @@ -387,7 +371,7 @@ config RTC_DRV_S3C config RTC_DRV_EP93XX tristate "Cirrus Logic EP93XX" - depends on RTC_CLASS && ARCH_EP93XX + depends on ARCH_EP93XX help If you say yes here you get support for the RTC embedded in the Cirrus Logic EP93XX processors. @@ -397,7 +381,7 @@ config RTC_DRV_EP93XX config RTC_DRV_SA1100 tristate "SA11x0/PXA2xx" - depends on RTC_CLASS && (ARCH_SA1100 || ARCH_PXA) + depends on ARCH_SA1100 || ARCH_PXA help If you say Y here you will get access to the real time clock built into your SA11x0 or PXA2xx CPU. @@ -407,7 +391,7 @@ config RTC_DRV_SA1100 config RTC_DRV_SH tristate "SuperH On-Chip RTC" - depends on RTC_CLASS && SUPERH && (CPU_SH3 || CPU_SH4) + depends on RTC_CLASS && (CPU_SH3 || CPU_SH4) help Say Y here to enable support for the on-chip RTC found in most SuperH processors. @@ -417,7 +401,7 @@ config RTC_DRV_SH config RTC_DRV_VR41XX tristate "NEC VR41XX" - depends on RTC_CLASS && CPU_VR41XX + depends on CPU_VR41XX help If you say Y here you will get access to the real time clock built into your NEC VR41XX CPU. @@ -427,7 +411,7 @@ config RTC_DRV_VR41XX config RTC_DRV_PL031 tristate "ARM AMBA PL031 RTC" - depends on RTC_CLASS && ARM_AMBA + depends on ARM_AMBA help If you say Y here you will get access to ARM AMBA PrimeCell PL031 RTC found on certain ARM SOCs. @@ -437,20 +421,20 @@ config RTC_DRV_PL031 config RTC_DRV_AT32AP700X tristate "AT32AP700X series RTC" - depends on RTC_CLASS && PLATFORM_AT32AP + depends on PLATFORM_AT32AP help Driver for the internal RTC (Realtime Clock) on Atmel AVR32 AT32AP700x family processors. config RTC_DRV_AT91RM9200 tristate "AT91RM9200" - depends on RTC_CLASS && ARCH_AT91RM9200 + depends on ARCH_AT91RM9200 help Driver for the Atmel AT91RM9200's internal RTC (Realtime Clock). config RTC_DRV_BFIN tristate "Blackfin On-Chip RTC" - depends on RTC_CLASS && BFIN + depends on BFIN help If you say yes here you will get support for the Blackfin On-Chip Real Time Clock. @@ -460,8 +444,8 @@ config RTC_DRV_BFIN config RTC_DRV_RS5C313 tristate "Ricoh RS5C313" - depends on RTC_CLASS && SH_LANDISK + depends on SH_LANDISK help If you say yes here you get support for the Ricoh RS5C313 RTC chips. -endmenu +endif # RTC_CLASS diff --git a/trunk/drivers/rtc/rtc-dev.c b/trunk/drivers/rtc/rtc-dev.c index 304535942de2..005fff3a3508 100644 --- a/trunk/drivers/rtc/rtc-dev.c +++ b/trunk/drivers/rtc/rtc-dev.c @@ -348,6 +348,8 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file, case RTC_IRQP_SET: if (ops->irq_set_freq) err = rtc_irq_set_freq(rtc, rtc->irq_task, arg); + else + err = -ENOTTY; break; #if 0 diff --git a/trunk/drivers/rtc/rtc-m48t59.c b/trunk/drivers/rtc/rtc-m48t59.c index 33b752350ab5..bf60d35f580b 100644 --- a/trunk/drivers/rtc/rtc-m48t59.c +++ b/trunk/drivers/rtc/rtc-m48t59.c @@ -35,7 +35,7 @@ struct m48t59_private { void __iomem *ioaddr; unsigned int size; /* iomem size */ - unsigned int irq; + int irq; struct rtc_device *rtc; spinlock_t lock; /* serialize the NVRAM and RTC access */ }; diff --git a/trunk/drivers/rtc/rtc-s3c.c b/trunk/drivers/rtc/rtc-s3c.c index 54b613053468..8c1012b432bb 100644 --- a/trunk/drivers/rtc/rtc-s3c.c +++ b/trunk/drivers/rtc/rtc-s3c.c @@ -29,7 +29,7 @@ #include -#include +#include /* I have yet to find an S3C implementation with more than one * of these rtc blocks in */ diff --git a/trunk/drivers/rtc/rtc-sh.c b/trunk/drivers/rtc/rtc-sh.c index e0f91dfce0f5..93ee05eeaeba 100644 --- a/trunk/drivers/rtc/rtc-sh.c +++ b/trunk/drivers/rtc/rtc-sh.c @@ -365,6 +365,7 @@ static int sh_rtc_set_time(struct device *dev, struct rtc_time *tm) /* Reset pre-scaler & stop RTC */ tmp = readb(rtc->regbase + RCR2); tmp |= RCR2_RESET; + tmp &= ~RCR2_START; writeb(tmp, rtc->regbase + RCR2); writeb(BIN2BCD(tm->tm_sec), rtc->regbase + RSECCNT); diff --git a/trunk/drivers/s390/block/dasd_eckd.c b/trunk/drivers/s390/block/dasd_eckd.c index 418b4e63a4fa..ea63ba7828f9 100644 --- a/trunk/drivers/s390/block/dasd_eckd.c +++ b/trunk/drivers/s390/block/dasd_eckd.c @@ -555,7 +555,7 @@ dasd_eckd_read_conf(struct dasd_device *device) if (conf_data == NULL) { MESSAGE(KERN_WARNING, "%s", "No configuration " "data retrieved"); - continue; /* no errror */ + continue; /* no error */ } if (conf_len != sizeof (struct dasd_eckd_confdata)) { MESSAGE(KERN_WARNING, @@ -564,7 +564,7 @@ dasd_eckd_read_conf(struct dasd_device *device) conf_len, sizeof (struct dasd_eckd_confdata)); kfree(conf_data); - continue; /* no errror */ + continue; /* no error */ } /* save first valid configuration data */ if (!conf_data_saved){ diff --git a/trunk/drivers/scsi/arm/Kconfig b/trunk/drivers/scsi/arm/Kconfig index d006a8cb4a74..7236143941f3 100644 --- a/trunk/drivers/scsi/arm/Kconfig +++ b/trunk/drivers/scsi/arm/Kconfig @@ -74,15 +74,6 @@ config SCSI_CUMANA_1 This enables support for the Cumana SCSI I card. If you have an Acorn system with one of these, say Y. If unsure, say N. -config SCSI_ECOSCSI - tristate "EcoScsi support (EXPERIMENTAL)" - depends on ARCH_ACORN && EXPERIMENTAL && (ARCH_ARC || ARCH_A5K) && SCSI - select SCSI_SPI_ATTRS - help - This enables support for the EcoSCSI card -- a small card that sits - in the Econet socket. If you have an Acorn system with one of these, - say Y. If unsure, say N. - config SCSI_OAK1 tristate "Oak SCSI support (EXPERIMENTAL)" depends on ARCH_ACORN && EXPERIMENTAL && SCSI diff --git a/trunk/drivers/scsi/arm/Makefile b/trunk/drivers/scsi/arm/Makefile index e8db17924c1d..16c3e86a6b1b 100644 --- a/trunk/drivers/scsi/arm/Makefile +++ b/trunk/drivers/scsi/arm/Makefile @@ -8,7 +8,6 @@ obj-$(CONFIG_SCSI_ACORNSCSI_3) += acornscsi_mod.o queue.o msgqueue.o obj-$(CONFIG_SCSI_ARXESCSI) += arxescsi.o fas216.o queue.o msgqueue.o obj-$(CONFIG_SCSI_CUMANA_1) += cumana_1.o obj-$(CONFIG_SCSI_CUMANA_2) += cumana_2.o fas216.o queue.o msgqueue.o -obj-$(CONFIG_SCSI_ECOSCSI) += ecoscsi.o obj-$(CONFIG_SCSI_OAK1) += oak.o obj-$(CONFIG_SCSI_POWERTECSCSI) += powertec.o fas216.o queue.o msgqueue.o obj-$(CONFIG_SCSI_EESOXSCSI) += eesox.o fas216.o queue.o msgqueue.o diff --git a/trunk/drivers/scsi/arm/ecoscsi.c b/trunk/drivers/scsi/arm/ecoscsi.c deleted file mode 100644 index 5265a9884338..000000000000 --- a/trunk/drivers/scsi/arm/ecoscsi.c +++ /dev/null @@ -1,166 +0,0 @@ -#define AUTOSENSE -/* #define PSEUDO_DMA */ - -/* - * EcoSCSI Generic NCR5380 driver - * - * Copyright 1995, Russell King - * - * ALPHA RELEASE 1. - * - * For more information, please consult - * - * NCR 5380 Family - * SCSI Protocol Controller - * Databook - * - * NCR Microelectronics - * 1635 Aeroplaza Drive - * Colorado Springs, CO 80916 - * 1+ (719) 578-3400 - * 1+ (800) 334-5454 - */ - -#include -#include -#include -#include -#include -#include - -#include -#include - -#include "../scsi.h" -#include - -#define priv(host) ((struct NCR5380_hostdata *)(host)->hostdata) - -#define NCR5380_local_declare() void __iomem *_base -#define NCR5380_setup(host) _base = priv(host)->base - -#define NCR5380_read(reg) ({ writeb(reg | 8, _base); readb(_base + 4); }) -#define NCR5380_write(reg, value) ({ writeb(reg | 8, _base); writeb(value, _base + 4); }) - -#define NCR5380_intr ecoscsi_intr -#define NCR5380_queue_command ecoscsi_queue_command -#define NCR5380_proc_info ecoscsi_proc_info - -#define NCR5380_implementation_fields \ - void __iomem *base - -#include "../NCR5380.h" - -#define ECOSCSI_PUBLIC_RELEASE 1 - -/* - * Function : ecoscsi_setup(char *str, int *ints) - * - * Purpose : LILO command line initialization of the overrides array, - * - * Inputs : str - unused, ints - array of integer parameters with ints[0] - * equal to the number of ints. - * - */ - -void ecoscsi_setup(char *str, int *ints) -{ -} - -const char * ecoscsi_info (struct Scsi_Host *spnt) -{ - return ""; -} - -#define BOARD_NORMAL 0 -#define BOARD_NCR53C400 1 - -#include "../NCR5380.c" - -static struct scsi_host_template ecoscsi_template = { - .module = THIS_MODULE, - .name = "Serial Port EcoSCSI NCR5380", - .proc_name = "ecoscsi", - .info = ecoscsi_info, - .queuecommand = ecoscsi_queue_command, - .eh_abort_handler = NCR5380_abort, - .eh_bus_reset_handler = NCR5380_bus_reset, - .can_queue = 16, - .this_id = 7, - .sg_tablesize = SG_ALL, - .cmd_per_lun = 2, - .use_clustering = DISABLE_CLUSTERING -}; - -static struct Scsi_Host *host; - -static int __init ecoscsi_init(void) -{ - void __iomem *_base; - int ret; - - if (!request_mem_region(0x33a0000, 4096, "ecoscsi")) { - ret = -EBUSY; - goto out; - } - - _base = ioremap(0x33a0000, 4096); - if (!_base) { - ret = -ENOMEM; - goto out_release; - } - - NCR5380_write(MODE_REG, 0x20); /* Is it really SCSI? */ - if (NCR5380_read(MODE_REG) != 0x20) /* Write to a reg. */ - goto out_unmap; - - NCR5380_write(MODE_REG, 0x00); /* it back. */ - if (NCR5380_read(MODE_REG) != 0x00) - goto out_unmap; - - host = scsi_host_alloc(tpnt, sizeof(struct NCR5380_hostdata)); - if (!host) { - ret = -ENOMEM; - goto out_unmap; - } - - priv(host)->base = _base; - host->irq = IRQ_NONE; - - NCR5380_init(host, 0); - - printk("scsi%d: at port 0x%08lx irqs disabled", host->host_no, host->io_port); - printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d", - host->can_queue, host->cmd_per_lun, ECOSCSI_PUBLIC_RELEASE); - printk("\nscsi%d:", host->host_no); - NCR5380_print_options(host); - printk("\n"); - - scsi_add_host(host, NULL); /* XXX handle failure */ - scsi_scan_host(host); - return 0; - - out_unmap: - iounmap(_base); - out_release: - release_mem_region(0x33a0000, 4096); - out: - return ret; -} - -static void __exit ecoscsi_exit(void) -{ - scsi_remove_host(host); - NCR5380_exit(host); - scsi_host_put(host); - release_mem_region(0x33a0000, 4096); - return 0; -} - -module_init(ecoscsi_init); -module_exit(ecoscsi_exit); - -MODULE_AUTHOR("Russell King"); -MODULE_DESCRIPTION("Econet-SCSI driver for Acorn machines"); -MODULE_LICENSE("GPL"); - diff --git a/trunk/drivers/serial/8250_pci.c b/trunk/drivers/serial/8250_pci.c index 6d7d616e9ccd..5e485876f54c 100644 --- a/trunk/drivers/serial/8250_pci.c +++ b/trunk/drivers/serial/8250_pci.c @@ -976,7 +976,6 @@ enum pci_board_num_t { pbn_oxsemi, pbn_intel_i960, pbn_sgi_ioc3, - pbn_nec_nile4, pbn_computone_4, pbn_computone_6, pbn_computone_8, @@ -1442,18 +1441,6 @@ static struct pciserial_board pci_boards[] __devinitdata = { .first_offset = 0x20178, }, - /* - * NEC Vrc-5074 (Nile 4) builtin UART. - */ - [pbn_nec_nile4] = { - .flags = FL_BASE0, - .num_ports = 1, - .base_baud = 520833, - .uart_offset = 8 << 3, - .reg_shift = 3, - .first_offset = 0x300, - }, - /* * Computone - uses IOMEM. */ @@ -2345,13 +2332,6 @@ static struct pci_device_id serial_pci_tbl[] = { PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_b2_1_115200 }, - /* - * NEC Vrc-5074 (Nile 4) builtin UART. - */ - { PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_NILE4, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_nec_nile4 }, - { PCI_VENDOR_ID_DCI, PCI_DEVICE_ID_DCI_PCCOM2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_b3_2_115200 }, diff --git a/trunk/drivers/serial/Kconfig b/trunk/drivers/serial/Kconfig index 18f629706448..64ff6a5f6afd 100644 --- a/trunk/drivers/serial/Kconfig +++ b/trunk/drivers/serial/Kconfig @@ -88,21 +88,17 @@ config SERIAL_8250_PCI depends on SERIAL_8250 && PCI default SERIAL_8250 help - Say Y here if you have PCI serial ports. - - To compile this driver as a module, choose M here: the module - will be called 8250_pci. + This builds standard PCI serial support. You may be able to + disable this feature if you only need legacy serial support. + Saves about 9K. config SERIAL_8250_PNP tristate "8250/16550 PNP device support" if EMBEDDED depends on SERIAL_8250 && PNP default SERIAL_8250 help - Say Y here if you have serial ports described by PNPBIOS or ACPI. - These are typically ports built into the system board. - - To compile this driver as a module, choose M here: the module - will be called 8250_pnp. + This builds standard PNP serial support. You may be able to + disable this feature if you only need legacy serial support. config SERIAL_8250_HP300 tristate @@ -1195,7 +1191,7 @@ config SERIAL_VR41XX config SERIAL_VR41XX_CONSOLE bool "Enable NEC VR4100 series Serial Interface Unit console" - depends on SERIAL_VR41XX + depends on SERIAL_VR41XX=y select SERIAL_CORE_CONSOLE help If you have a NEC VR4100 series processor and you want to use diff --git a/trunk/drivers/serial/mpsc.c b/trunk/drivers/serial/mpsc.c index 00924feaf621..4d643c926657 100644 --- a/trunk/drivers/serial/mpsc.c +++ b/trunk/drivers/serial/mpsc.c @@ -74,10 +74,6 @@ #include #include -#if defined(CONFIG_SERIAL_MPSC_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) -#define SUPPORT_SYSRQ -#endif - #define MPSC_NUM_CTLRS 2 /* @@ -97,9 +93,8 @@ #define MPSC_TXBE_SIZE dma_get_cache_alignment() #define MPSC_TXB_SIZE (MPSC_TXR_ENTRIES * MPSC_TXBE_SIZE) -#define MPSC_DMA_ALLOC_SIZE (MPSC_RXR_SIZE + MPSC_RXB_SIZE + \ - MPSC_TXR_SIZE + MPSC_TXB_SIZE + \ - dma_get_cache_alignment() /* for alignment */) +#define MPSC_DMA_ALLOC_SIZE (MPSC_RXR_SIZE + MPSC_RXB_SIZE + MPSC_TXR_SIZE \ + + MPSC_TXB_SIZE + dma_get_cache_alignment() /* for alignment */) /* Rx and Tx Ring entry descriptors -- assume entry size is <= cacheline size */ struct mpsc_rx_desc { @@ -270,8 +265,8 @@ struct mpsc_port_info *mpsc_device_remove(int index); #define SDMA_DESC_CMDSTAT_EI (1<<23) #define SDMA_DESC_CMDSTAT_O (1<<31) -#define SDMA_DESC_DFLT (SDMA_DESC_CMDSTAT_O | \ - SDMA_DESC_CMDSTAT_EI) +#define SDMA_DESC_DFLT (SDMA_DESC_CMDSTAT_O \ + | SDMA_DESC_CMDSTAT_EI) #define SDMA_SDC_RFT (1<<0) #define SDMA_SDC_SFM (1<<1) @@ -295,10 +290,10 @@ struct mpsc_port_info *mpsc_device_remove(int index); #define SDMA_1_CAUSE_TXBUF (1<<10) #define SDMA_1_CAUSE_TXEND (1<<11) -#define SDMA_CAUSE_RX_MASK (SDMA_0_CAUSE_RXBUF | SDMA_0_CAUSE_RXERR | \ - SDMA_1_CAUSE_RXBUF | SDMA_1_CAUSE_RXERR) -#define SDMA_CAUSE_TX_MASK (SDMA_0_CAUSE_TXBUF | SDMA_0_CAUSE_TXEND | \ - SDMA_1_CAUSE_TXBUF | SDMA_1_CAUSE_TXEND) +#define SDMA_CAUSE_RX_MASK (SDMA_0_CAUSE_RXBUF | SDMA_0_CAUSE_RXERR \ + | SDMA_1_CAUSE_RXBUF | SDMA_1_CAUSE_RXERR) +#define SDMA_CAUSE_TX_MASK (SDMA_0_CAUSE_TXBUF | SDMA_0_CAUSE_TXEND \ + | SDMA_1_CAUSE_TXBUF | SDMA_1_CAUSE_TXEND) /* SDMA Interrupt registers */ #define SDMA_INTR_CAUSE 0x0000 @@ -312,11 +307,11 @@ struct mpsc_port_info *mpsc_device_remove(int index); * Define how this driver is known to the outside (we've been assigned a * range on the "Low-density serial ports" major). */ -#define MPSC_MAJOR 204 -#define MPSC_MINOR_START 44 -#define MPSC_DRIVER_NAME "MPSC" -#define MPSC_DEV_NAME "ttyMM" -#define MPSC_VERSION "1.00" +#define MPSC_MAJOR 204 +#define MPSC_MINOR_START 44 +#define MPSC_DRIVER_NAME "MPSC" +#define MPSC_DEV_NAME "ttyMM" +#define MPSC_VERSION "1.00" static struct mpsc_port_info mpsc_ports[MPSC_NUM_CTLRS]; static struct mpsc_shared_regs mpsc_shared_regs; @@ -332,8 +327,7 @@ static void mpsc_release_port(struct uart_port *port); * ****************************************************************************** */ -static void -mpsc_brg_init(struct mpsc_port_info *pi, u32 clk_src) +static void mpsc_brg_init(struct mpsc_port_info *pi, u32 clk_src) { u32 v; @@ -349,11 +343,9 @@ mpsc_brg_init(struct mpsc_port_info *pi, u32 clk_src) writel(readl(pi->brg_base + BRG_BTR) & 0xffff0000, pi->brg_base + BRG_BTR); - return; } -static void -mpsc_brg_enable(struct mpsc_port_info *pi) +static void mpsc_brg_enable(struct mpsc_port_info *pi) { u32 v; @@ -363,11 +355,9 @@ mpsc_brg_enable(struct mpsc_port_info *pi) if (pi->mirror_regs) pi->BRG_BCR_m = v; writel(v, pi->brg_base + BRG_BCR); - return; } -static void -mpsc_brg_disable(struct mpsc_port_info *pi) +static void mpsc_brg_disable(struct mpsc_port_info *pi) { u32 v; @@ -377,21 +367,19 @@ mpsc_brg_disable(struct mpsc_port_info *pi) if (pi->mirror_regs) pi->BRG_BCR_m = v; writel(v, pi->brg_base + BRG_BCR); - return; } -static inline void -mpsc_set_baudrate(struct mpsc_port_info *pi, u32 baud) +/* + * To set the baud, we adjust the CDV field in the BRG_BCR reg. + * From manual: Baud = clk / ((CDV+1)*2) ==> CDV = (clk / (baud*2)) - 1. + * However, the input clock is divided by 16 in the MPSC b/c of how + * 'MPSC_MMCRH' was set up so we have to divide the 'clk' used in our + * calculation by 16 to account for that. So the real calculation + * that accounts for the way the mpsc is set up is: + * CDV = (clk / (baud*2*16)) - 1 ==> CDV = (clk / (baud << 5)) - 1. + */ +static void mpsc_set_baudrate(struct mpsc_port_info *pi, u32 baud) { - /* - * To set the baud, we adjust the CDV field in the BRG_BCR reg. - * From manual: Baud = clk / ((CDV+1)*2) ==> CDV = (clk / (baud*2)) - 1. - * However, the input clock is divided by 16 in the MPSC b/c of how - * 'MPSC_MMCRH' was set up so we have to divide the 'clk' used in our - * calculation by 16 to account for that. So the real calculation - * that accounts for the way the mpsc is set up is: - * CDV = (clk / (baud*2*16)) - 1 ==> CDV = (clk / (baud << 5)) - 1. - */ u32 cdv = (pi->port.uartclk / (baud << 5)) - 1; u32 v; @@ -403,8 +391,6 @@ mpsc_set_baudrate(struct mpsc_port_info *pi, u32 baud) pi->BRG_BCR_m = v; writel(v, pi->brg_base + BRG_BCR); mpsc_brg_enable(pi); - - return; } /* @@ -415,13 +401,12 @@ mpsc_set_baudrate(struct mpsc_port_info *pi, u32 baud) ****************************************************************************** */ -static void -mpsc_sdma_burstsize(struct mpsc_port_info *pi, u32 burst_size) +static void mpsc_sdma_burstsize(struct mpsc_port_info *pi, u32 burst_size) { u32 v; pr_debug("mpsc_sdma_burstsize[%d]: burst_size: %d\n", - pi->port.line, burst_size); + pi->port.line, burst_size); burst_size >>= 3; /* Divide by 8 b/c reg values are 8-byte chunks */ @@ -436,11 +421,9 @@ mpsc_sdma_burstsize(struct mpsc_port_info *pi, u32 burst_size) writel((readl(pi->sdma_base + SDMA_SDC) & (0x3 << 12)) | (v << 12), pi->sdma_base + SDMA_SDC); - return; } -static void -mpsc_sdma_init(struct mpsc_port_info *pi, u32 burst_size) +static void mpsc_sdma_init(struct mpsc_port_info *pi, u32 burst_size) { pr_debug("mpsc_sdma_init[%d]: burst_size: %d\n", pi->port.line, burst_size); @@ -448,11 +431,9 @@ mpsc_sdma_init(struct mpsc_port_info *pi, u32 burst_size) writel((readl(pi->sdma_base + SDMA_SDC) & 0x3ff) | 0x03f, pi->sdma_base + SDMA_SDC); mpsc_sdma_burstsize(pi, burst_size); - return; } -static inline u32 -mpsc_sdma_intr_mask(struct mpsc_port_info *pi, u32 mask) +static u32 mpsc_sdma_intr_mask(struct mpsc_port_info *pi, u32 mask) { u32 old, v; @@ -475,15 +456,14 @@ mpsc_sdma_intr_mask(struct mpsc_port_info *pi, u32 mask) return old & 0xf; } -static inline void -mpsc_sdma_intr_unmask(struct mpsc_port_info *pi, u32 mask) +static void mpsc_sdma_intr_unmask(struct mpsc_port_info *pi, u32 mask) { u32 v; pr_debug("mpsc_sdma_intr_unmask[%d]: mask: 0x%x\n", pi->port.line,mask); - v = (pi->mirror_regs) ? pi->shared_regs->SDMA_INTR_MASK_m : - readl(pi->shared_regs->sdma_intr_base + SDMA_INTR_MASK); + v = (pi->mirror_regs) ? pi->shared_regs->SDMA_INTR_MASK_m + : readl(pi->shared_regs->sdma_intr_base + SDMA_INTR_MASK); mask &= 0xf; if (pi->port.line) @@ -493,41 +473,35 @@ mpsc_sdma_intr_unmask(struct mpsc_port_info *pi, u32 mask) if (pi->mirror_regs) pi->shared_regs->SDMA_INTR_MASK_m = v; writel(v, pi->shared_regs->sdma_intr_base + SDMA_INTR_MASK); - return; } -static inline void -mpsc_sdma_intr_ack(struct mpsc_port_info *pi) +static void mpsc_sdma_intr_ack(struct mpsc_port_info *pi) { pr_debug("mpsc_sdma_intr_ack[%d]: Acknowledging IRQ\n", pi->port.line); if (pi->mirror_regs) pi->shared_regs->SDMA_INTR_CAUSE_m = 0; - writeb(0x00, pi->shared_regs->sdma_intr_base + SDMA_INTR_CAUSE + - pi->port.line); - return; + writeb(0x00, pi->shared_regs->sdma_intr_base + SDMA_INTR_CAUSE + + pi->port.line); } -static inline void -mpsc_sdma_set_rx_ring(struct mpsc_port_info *pi, struct mpsc_rx_desc *rxre_p) +static void mpsc_sdma_set_rx_ring(struct mpsc_port_info *pi, + struct mpsc_rx_desc *rxre_p) { pr_debug("mpsc_sdma_set_rx_ring[%d]: rxre_p: 0x%x\n", - pi->port.line, (u32) rxre_p); + pi->port.line, (u32)rxre_p); writel((u32)rxre_p, pi->sdma_base + SDMA_SCRDP); - return; } -static inline void -mpsc_sdma_set_tx_ring(struct mpsc_port_info *pi, struct mpsc_tx_desc *txre_p) +static void mpsc_sdma_set_tx_ring(struct mpsc_port_info *pi, + struct mpsc_tx_desc *txre_p) { writel((u32)txre_p, pi->sdma_base + SDMA_SFTDP); writel((u32)txre_p, pi->sdma_base + SDMA_SCTDP); - return; } -static inline void -mpsc_sdma_cmd(struct mpsc_port_info *pi, u32 val) +static void mpsc_sdma_cmd(struct mpsc_port_info *pi, u32 val) { u32 v; @@ -539,46 +513,40 @@ mpsc_sdma_cmd(struct mpsc_port_info *pi, u32 val) wmb(); writel(v, pi->sdma_base + SDMA_SDCM); wmb(); - return; } -static inline uint -mpsc_sdma_tx_active(struct mpsc_port_info *pi) +static uint mpsc_sdma_tx_active(struct mpsc_port_info *pi) { return readl(pi->sdma_base + SDMA_SDCM) & SDMA_SDCM_TXD; } -static inline void -mpsc_sdma_start_tx(struct mpsc_port_info *pi) +static void mpsc_sdma_start_tx(struct mpsc_port_info *pi) { struct mpsc_tx_desc *txre, *txre_p; /* If tx isn't running & there's a desc ready to go, start it */ if (!mpsc_sdma_tx_active(pi)) { - txre = (struct mpsc_tx_desc *)(pi->txr + - (pi->txr_tail * MPSC_TXRE_SIZE)); - dma_cache_sync(pi->port.dev, (void *) txre, MPSC_TXRE_SIZE, DMA_FROM_DEVICE); + txre = (struct mpsc_tx_desc *)(pi->txr + + (pi->txr_tail * MPSC_TXRE_SIZE)); + dma_cache_sync(pi->port.dev, (void *)txre, MPSC_TXRE_SIZE, + DMA_FROM_DEVICE); #if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE) if (pi->cache_mgmt) /* GT642[46]0 Res #COMM-2 */ invalidate_dcache_range((ulong)txre, - (ulong)txre + MPSC_TXRE_SIZE); + (ulong)txre + MPSC_TXRE_SIZE); #endif if (be32_to_cpu(txre->cmdstat) & SDMA_DESC_CMDSTAT_O) { - txre_p = (struct mpsc_tx_desc *)(pi->txr_p + - (pi->txr_tail * - MPSC_TXRE_SIZE)); + txre_p = (struct mpsc_tx_desc *) + (pi->txr_p + (pi->txr_tail * MPSC_TXRE_SIZE)); mpsc_sdma_set_tx_ring(pi, txre_p); mpsc_sdma_cmd(pi, SDMA_SDCM_STD | SDMA_SDCM_TXD); } } - - return; } -static inline void -mpsc_sdma_stop(struct mpsc_port_info *pi) +static void mpsc_sdma_stop(struct mpsc_port_info *pi) { pr_debug("mpsc_sdma_stop[%d]: Stopping SDMA\n", pi->port.line); @@ -593,8 +561,6 @@ mpsc_sdma_stop(struct mpsc_port_info *pi) /* Disable interrupts */ mpsc_sdma_intr_mask(pi, 0xf); mpsc_sdma_intr_ack(pi); - - return; } /* @@ -605,8 +571,7 @@ mpsc_sdma_stop(struct mpsc_port_info *pi) ****************************************************************************** */ -static void -mpsc_hw_init(struct mpsc_port_info *pi) +static void mpsc_hw_init(struct mpsc_port_info *pi) { u32 v; @@ -628,8 +593,7 @@ mpsc_hw_init(struct mpsc_port_info *pi) v = (v & ~0xf0f) | 0x100; pi->shared_regs->MPSC_TCRR_m = v; writel(v, pi->shared_regs->mpsc_routing_base + MPSC_TCRR); - } - else { + } else { v = readl(pi->shared_regs->mpsc_routing_base + MPSC_MRR); v &= ~0x1c7; writel(v, pi->shared_regs->mpsc_routing_base + MPSC_MRR); @@ -646,7 +610,7 @@ mpsc_hw_init(struct mpsc_port_info *pi) /* Put MPSC in UART mode & enabel Tx/Rx egines */ writel(0x000004c4, pi->mpsc_base + MPSC_MMCRL); - /* No preamble, 16x divider, low-latency, */ + /* No preamble, 16x divider, low-latency, */ writel(0x04400400, pi->mpsc_base + MPSC_MMCRH); if (pi->mirror_regs) { @@ -663,12 +627,9 @@ mpsc_hw_init(struct mpsc_port_info *pi) writel(0, pi->mpsc_base + MPSC_CHR_8); writel(0, pi->mpsc_base + MPSC_CHR_9); writel(0, pi->mpsc_base + MPSC_CHR_10); - - return; } -static inline void -mpsc_enter_hunt(struct mpsc_port_info *pi) +static void mpsc_enter_hunt(struct mpsc_port_info *pi) { pr_debug("mpsc_enter_hunt[%d]: Hunting...\n", pi->port.line); @@ -677,20 +638,16 @@ mpsc_enter_hunt(struct mpsc_port_info *pi) pi->mpsc_base + MPSC_CHR_2); /* Erratum prevents reading CHR_2 so just delay for a while */ udelay(100); - } - else { + } else { writel(readl(pi->mpsc_base + MPSC_CHR_2) | MPSC_CHR_2_EH, - pi->mpsc_base + MPSC_CHR_2); + pi->mpsc_base + MPSC_CHR_2); while (readl(pi->mpsc_base + MPSC_CHR_2) & MPSC_CHR_2_EH) udelay(10); } - - return; } -static inline void -mpsc_freeze(struct mpsc_port_info *pi) +static void mpsc_freeze(struct mpsc_port_info *pi) { u32 v; @@ -703,11 +660,9 @@ mpsc_freeze(struct mpsc_port_info *pi) if (pi->mirror_regs) pi->MPSC_MPCR_m = v; writel(v, pi->mpsc_base + MPSC_MPCR); - return; } -static inline void -mpsc_unfreeze(struct mpsc_port_info *pi) +static void mpsc_unfreeze(struct mpsc_port_info *pi) { u32 v; @@ -720,11 +675,9 @@ mpsc_unfreeze(struct mpsc_port_info *pi) writel(v, pi->mpsc_base + MPSC_MPCR); pr_debug("mpsc_unfreeze[%d]: Unfrozen\n", pi->port.line); - return; } -static inline void -mpsc_set_char_length(struct mpsc_port_info *pi, u32 len) +static void mpsc_set_char_length(struct mpsc_port_info *pi, u32 len) { u32 v; @@ -737,11 +690,9 @@ mpsc_set_char_length(struct mpsc_port_info *pi, u32 len) if (pi->mirror_regs) pi->MPSC_MPCR_m = v; writel(v, pi->mpsc_base + MPSC_MPCR); - return; } -static inline void -mpsc_set_stop_bit_length(struct mpsc_port_info *pi, u32 len) +static void mpsc_set_stop_bit_length(struct mpsc_port_info *pi, u32 len) { u32 v; @@ -756,11 +707,9 @@ mpsc_set_stop_bit_length(struct mpsc_port_info *pi, u32 len) if (pi->mirror_regs) pi->MPSC_MPCR_m = v; writel(v, pi->mpsc_base + MPSC_MPCR); - return; } -static inline void -mpsc_set_parity(struct mpsc_port_info *pi, u32 p) +static void mpsc_set_parity(struct mpsc_port_info *pi, u32 p) { u32 v; @@ -775,7 +724,6 @@ mpsc_set_parity(struct mpsc_port_info *pi, u32 p) if (pi->mirror_regs) pi->MPSC_CHR_2_m = v; writel(v, pi->mpsc_base + MPSC_CHR_2); - return; } /* @@ -786,8 +734,7 @@ mpsc_set_parity(struct mpsc_port_info *pi, u32 p) ****************************************************************************** */ -static void -mpsc_init_hw(struct mpsc_port_info *pi) +static void mpsc_init_hw(struct mpsc_port_info *pi) { pr_debug("mpsc_init_hw[%d]: Initializing\n", pi->port.line); @@ -796,12 +743,9 @@ mpsc_init_hw(struct mpsc_port_info *pi) mpsc_sdma_init(pi, dma_get_cache_alignment()); /* burst a cacheline */ mpsc_sdma_stop(pi); mpsc_hw_init(pi); - - return; } -static int -mpsc_alloc_ring_mem(struct mpsc_port_info *pi) +static int mpsc_alloc_ring_mem(struct mpsc_port_info *pi) { int rc = 0; @@ -812,11 +756,10 @@ mpsc_alloc_ring_mem(struct mpsc_port_info *pi) if (!dma_supported(pi->port.dev, 0xffffffff)) { printk(KERN_ERR "MPSC: Inadequate DMA support\n"); rc = -ENXIO; - } - else if ((pi->dma_region = dma_alloc_noncoherent(pi->port.dev, - MPSC_DMA_ALLOC_SIZE, &pi->dma_region_p, GFP_KERNEL)) - == NULL) { - + } else if ((pi->dma_region = dma_alloc_noncoherent(pi->port.dev, + MPSC_DMA_ALLOC_SIZE, + &pi->dma_region_p, GFP_KERNEL)) + == NULL) { printk(KERN_ERR "MPSC: Can't alloc Desc region\n"); rc = -ENOMEM; } @@ -825,23 +768,19 @@ mpsc_alloc_ring_mem(struct mpsc_port_info *pi) return rc; } -static void -mpsc_free_ring_mem(struct mpsc_port_info *pi) +static void mpsc_free_ring_mem(struct mpsc_port_info *pi) { pr_debug("mpsc_free_ring_mem[%d]: Freeing ring mem\n", pi->port.line); if (pi->dma_region) { dma_free_noncoherent(pi->port.dev, MPSC_DMA_ALLOC_SIZE, - pi->dma_region, pi->dma_region_p); + pi->dma_region, pi->dma_region_p); pi->dma_region = NULL; - pi->dma_region_p = (dma_addr_t) NULL; + pi->dma_region_p = (dma_addr_t)NULL; } - - return; } -static void -mpsc_init_rings(struct mpsc_port_info *pi) +static void mpsc_init_rings(struct mpsc_port_info *pi) { struct mpsc_rx_desc *rxre; struct mpsc_tx_desc *txre; @@ -859,8 +798,8 @@ mpsc_init_rings(struct mpsc_port_info *pi) * Descriptors & buffers are multiples of cacheline size and must be * cacheline aligned. */ - dp = ALIGN((u32) pi->dma_region, dma_get_cache_alignment()); - dp_p = ALIGN((u32) pi->dma_region_p, dma_get_cache_alignment()); + dp = ALIGN((u32)pi->dma_region, dma_get_cache_alignment()); + dp_p = ALIGN((u32)pi->dma_region_p, dma_get_cache_alignment()); /* * Partition dma region into rx ring descriptor, rx buffers, @@ -871,8 +810,8 @@ mpsc_init_rings(struct mpsc_port_info *pi) dp += MPSC_RXR_SIZE; dp_p += MPSC_RXR_SIZE; - pi->rxb = (u8 *) dp; - pi->rxb_p = (u8 *) dp_p; + pi->rxb = (u8 *)dp; + pi->rxb_p = (u8 *)dp_p; dp += MPSC_RXB_SIZE; dp_p += MPSC_RXB_SIZE; @@ -883,8 +822,8 @@ mpsc_init_rings(struct mpsc_port_info *pi) dp += MPSC_TXR_SIZE; dp_p += MPSC_TXR_SIZE; - pi->txb = (u8 *) dp; - pi->txb_p = (u8 *) dp_p; + pi->txb = (u8 *)dp; + pi->txb_p = (u8 *)dp_p; pi->txr_head = 0; pi->txr_tail = 0; @@ -900,10 +839,9 @@ mpsc_init_rings(struct mpsc_port_info *pi) rxre->bufsize = cpu_to_be16(MPSC_RXBE_SIZE); rxre->bytecnt = cpu_to_be16(0); - rxre->cmdstat = cpu_to_be32(SDMA_DESC_CMDSTAT_O | - SDMA_DESC_CMDSTAT_EI | - SDMA_DESC_CMDSTAT_F | - SDMA_DESC_CMDSTAT_L); + rxre->cmdstat = cpu_to_be32(SDMA_DESC_CMDSTAT_O + | SDMA_DESC_CMDSTAT_EI | SDMA_DESC_CMDSTAT_F + | SDMA_DESC_CMDSTAT_L); rxre->link = cpu_to_be32(dp_p + MPSC_RXRE_SIZE); rxre->buf_ptr = cpu_to_be32(bp_p); @@ -933,19 +871,19 @@ mpsc_init_rings(struct mpsc_port_info *pi) } txre->link = cpu_to_be32(pi->txr_p); /* Wrap last back to first */ - dma_cache_sync(pi->port.dev, (void *) pi->dma_region, MPSC_DMA_ALLOC_SIZE, - DMA_BIDIRECTIONAL); + dma_cache_sync(pi->port.dev, (void *)pi->dma_region, + MPSC_DMA_ALLOC_SIZE, DMA_BIDIRECTIONAL); #if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE) if (pi->cache_mgmt) /* GT642[46]0 Res #COMM-2 */ flush_dcache_range((ulong)pi->dma_region, - (ulong)pi->dma_region + MPSC_DMA_ALLOC_SIZE); + (ulong)pi->dma_region + + MPSC_DMA_ALLOC_SIZE); #endif return; } -static void -mpsc_uninit_rings(struct mpsc_port_info *pi) +static void mpsc_uninit_rings(struct mpsc_port_info *pi) { pr_debug("mpsc_uninit_rings[%d]: Uninitializing rings\n",pi->port.line); @@ -963,12 +901,9 @@ mpsc_uninit_rings(struct mpsc_port_info *pi) pi->txb_p = NULL; pi->txr_head = 0; pi->txr_tail = 0; - - return; } -static int -mpsc_make_ready(struct mpsc_port_info *pi) +static int mpsc_make_ready(struct mpsc_port_info *pi) { int rc; @@ -993,8 +928,7 @@ mpsc_make_ready(struct mpsc_port_info *pi) ****************************************************************************** */ -static inline int -mpsc_rx_intr(struct mpsc_port_info *pi) +static int mpsc_rx_intr(struct mpsc_port_info *pi) { struct mpsc_rx_desc *rxre; struct tty_struct *tty = pi->port.info->tty; @@ -1007,21 +941,24 @@ mpsc_rx_intr(struct mpsc_port_info *pi) rxre = (struct mpsc_rx_desc *)(pi->rxr + (pi->rxr_posn*MPSC_RXRE_SIZE)); - dma_cache_sync(pi->port.dev, (void *)rxre, MPSC_RXRE_SIZE, DMA_FROM_DEVICE); + dma_cache_sync(pi->port.dev, (void *)rxre, MPSC_RXRE_SIZE, + DMA_FROM_DEVICE); #if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE) if (pi->cache_mgmt) /* GT642[46]0 Res #COMM-2 */ invalidate_dcache_range((ulong)rxre, - (ulong)rxre + MPSC_RXRE_SIZE); + (ulong)rxre + MPSC_RXRE_SIZE); #endif /* * Loop through Rx descriptors handling ones that have been completed. */ - while (!((cmdstat = be32_to_cpu(rxre->cmdstat)) & SDMA_DESC_CMDSTAT_O)){ + while (!((cmdstat = be32_to_cpu(rxre->cmdstat)) + & SDMA_DESC_CMDSTAT_O)) { bytes_in = be16_to_cpu(rxre->bytecnt); /* Following use of tty struct directly is deprecated */ - if (unlikely(tty_buffer_request_room(tty, bytes_in) < bytes_in)) { + if (unlikely(tty_buffer_request_room(tty, bytes_in) + < bytes_in)) { if (tty->low_latency) tty_flip_buffer_push(tty); /* @@ -1031,11 +968,12 @@ mpsc_rx_intr(struct mpsc_port_info *pi) } bp = pi->rxb + (pi->rxr_posn * MPSC_RXBE_SIZE); - dma_cache_sync(pi->port.dev, (void *) bp, MPSC_RXBE_SIZE, DMA_FROM_DEVICE); + dma_cache_sync(pi->port.dev, (void *)bp, MPSC_RXBE_SIZE, + DMA_FROM_DEVICE); #if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE) if (pi->cache_mgmt) /* GT642[46]0 Res #COMM-2 */ invalidate_dcache_range((ulong)bp, - (ulong)bp + MPSC_RXBE_SIZE); + (ulong)bp + MPSC_RXBE_SIZE); #endif /* @@ -1046,8 +984,9 @@ mpsc_rx_intr(struct mpsc_port_info *pi) * we'll assume there is no data in the buffer. * If there is...it gets lost. */ - if (unlikely(cmdstat & (SDMA_DESC_CMDSTAT_BR | - SDMA_DESC_CMDSTAT_FR | SDMA_DESC_CMDSTAT_OR))) { + if (unlikely(cmdstat & (SDMA_DESC_CMDSTAT_BR + | SDMA_DESC_CMDSTAT_FR + | SDMA_DESC_CMDSTAT_OR))) { pi->port.icount.rx++; @@ -1056,11 +995,11 @@ mpsc_rx_intr(struct mpsc_port_info *pi) if (uart_handle_break(&pi->port)) goto next_frame; - } - else if (cmdstat & SDMA_DESC_CMDSTAT_FR)/* Framing */ + } else if (cmdstat & SDMA_DESC_CMDSTAT_FR) { pi->port.icount.frame++; - else if (cmdstat & SDMA_DESC_CMDSTAT_OR) /* Overrun */ + } else if (cmdstat & SDMA_DESC_CMDSTAT_OR) { pi->port.icount.overrun++; + } cmdstat &= pi->port.read_status_mask; @@ -1080,12 +1019,12 @@ mpsc_rx_intr(struct mpsc_port_info *pi) goto next_frame; } - if ((unlikely(cmdstat & (SDMA_DESC_CMDSTAT_BR | - SDMA_DESC_CMDSTAT_FR | SDMA_DESC_CMDSTAT_OR))) && - !(cmdstat & pi->port.ignore_status_mask)) - + if ((unlikely(cmdstat & (SDMA_DESC_CMDSTAT_BR + | SDMA_DESC_CMDSTAT_FR + | SDMA_DESC_CMDSTAT_OR))) + && !(cmdstat & pi->port.ignore_status_mask)) { tty_insert_flip_char(tty, *bp, flag); - else { + } else { for (i=0; ibytecnt = cpu_to_be16(0); wmb(); - rxre->cmdstat = cpu_to_be32(SDMA_DESC_CMDSTAT_O | - SDMA_DESC_CMDSTAT_EI | - SDMA_DESC_CMDSTAT_F | - SDMA_DESC_CMDSTAT_L); + rxre->cmdstat = cpu_to_be32(SDMA_DESC_CMDSTAT_O + | SDMA_DESC_CMDSTAT_EI | SDMA_DESC_CMDSTAT_F + | SDMA_DESC_CMDSTAT_L); wmb(); - dma_cache_sync(pi->port.dev, (void *)rxre, MPSC_RXRE_SIZE, DMA_BIDIRECTIONAL); + dma_cache_sync(pi->port.dev, (void *)rxre, MPSC_RXRE_SIZE, + DMA_BIDIRECTIONAL); #if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE) if (pi->cache_mgmt) /* GT642[46]0 Res #COMM-2 */ flush_dcache_range((ulong)rxre, - (ulong)rxre + MPSC_RXRE_SIZE); + (ulong)rxre + MPSC_RXRE_SIZE); #endif /* Advance to next descriptor */ pi->rxr_posn = (pi->rxr_posn + 1) & (MPSC_RXR_ENTRIES - 1); - rxre = (struct mpsc_rx_desc *)(pi->rxr + - (pi->rxr_posn * MPSC_RXRE_SIZE)); - dma_cache_sync(pi->port.dev, (void *)rxre, MPSC_RXRE_SIZE, DMA_FROM_DEVICE); + rxre = (struct mpsc_rx_desc *) + (pi->rxr + (pi->rxr_posn * MPSC_RXRE_SIZE)); + dma_cache_sync(pi->port.dev, (void *)rxre, MPSC_RXRE_SIZE, + DMA_FROM_DEVICE); #if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE) if (pi->cache_mgmt) /* GT642[46]0 Res #COMM-2 */ invalidate_dcache_range((ulong)rxre, - (ulong)rxre + MPSC_RXRE_SIZE); + (ulong)rxre + MPSC_RXRE_SIZE); #endif - rc = 1; } @@ -1129,42 +1068,38 @@ mpsc_rx_intr(struct mpsc_port_info *pi) return rc; } -static inline void -mpsc_setup_tx_desc(struct mpsc_port_info *pi, u32 count, u32 intr) +static void mpsc_setup_tx_desc(struct mpsc_port_info *pi, u32 count, u32 intr) { struct mpsc_tx_desc *txre; - txre = (struct mpsc_tx_desc *)(pi->txr + - (pi->txr_head * MPSC_TXRE_SIZE)); + txre = (struct mpsc_tx_desc *)(pi->txr + + (pi->txr_head * MPSC_TXRE_SIZE)); txre->bytecnt = cpu_to_be16(count); txre->shadow = txre->bytecnt; wmb(); /* ensure cmdstat is last field updated */ - txre->cmdstat = cpu_to_be32(SDMA_DESC_CMDSTAT_O | SDMA_DESC_CMDSTAT_F | - SDMA_DESC_CMDSTAT_L | ((intr) ? - SDMA_DESC_CMDSTAT_EI - : 0)); + txre->cmdstat = cpu_to_be32(SDMA_DESC_CMDSTAT_O | SDMA_DESC_CMDSTAT_F + | SDMA_DESC_CMDSTAT_L + | ((intr) ? SDMA_DESC_CMDSTAT_EI : 0)); wmb(); - dma_cache_sync(pi->port.dev, (void *) txre, MPSC_TXRE_SIZE, DMA_BIDIRECTIONAL); + dma_cache_sync(pi->port.dev, (void *)txre, MPSC_TXRE_SIZE, + DMA_BIDIRECTIONAL); #if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE) if (pi->cache_mgmt) /* GT642[46]0 Res #COMM-2 */ flush_dcache_range((ulong)txre, - (ulong)txre + MPSC_TXRE_SIZE); + (ulong)txre + MPSC_TXRE_SIZE); #endif - - return; } -static inline void -mpsc_copy_tx_data(struct mpsc_port_info *pi) +static void mpsc_copy_tx_data(struct mpsc_port_info *pi) { struct circ_buf *xmit = &pi->port.info->xmit; u8 *bp; u32 i; /* Make sure the desc ring isn't full */ - while (CIRC_CNT(pi->txr_head, pi->txr_tail, MPSC_TXR_ENTRIES) < - (MPSC_TXR_ENTRIES - 1)) { + while (CIRC_CNT(pi->txr_head, pi->txr_tail, MPSC_TXR_ENTRIES) + < (MPSC_TXR_ENTRIES - 1)) { if (pi->port.x_char) { /* * Ideally, we should use the TCS field in @@ -1178,11 +1113,11 @@ mpsc_copy_tx_data(struct mpsc_port_info *pi) *bp = pi->port.x_char; pi->port.x_char = 0; i = 1; - } - else if (!uart_circ_empty(xmit) && !uart_tx_stopped(&pi->port)){ - i = min((u32) MPSC_TXBE_SIZE, - (u32) uart_circ_chars_pending(xmit)); - i = min(i, (u32) CIRC_CNT_TO_END(xmit->head, xmit->tail, + } else if (!uart_circ_empty(xmit) + && !uart_tx_stopped(&pi->port)) { + i = min((u32)MPSC_TXBE_SIZE, + (u32)uart_circ_chars_pending(xmit)); + i = min(i, (u32)CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE)); bp = pi->txb + (pi->txr_head * MPSC_TXBE_SIZE); memcpy(bp, &xmit->buf[xmit->tail], i); @@ -1190,27 +1125,25 @@ mpsc_copy_tx_data(struct mpsc_port_info *pi) if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(&pi->port); - } - else /* All tx data copied into ring bufs */ + } else { /* All tx data copied into ring bufs */ return; + } - dma_cache_sync(pi->port.dev, (void *) bp, MPSC_TXBE_SIZE, DMA_BIDIRECTIONAL); + dma_cache_sync(pi->port.dev, (void *)bp, MPSC_TXBE_SIZE, + DMA_BIDIRECTIONAL); #if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE) if (pi->cache_mgmt) /* GT642[46]0 Res #COMM-2 */ flush_dcache_range((ulong)bp, - (ulong)bp + MPSC_TXBE_SIZE); + (ulong)bp + MPSC_TXBE_SIZE); #endif mpsc_setup_tx_desc(pi, i, 1); /* Advance to next descriptor */ pi->txr_head = (pi->txr_head + 1) & (MPSC_TXR_ENTRIES - 1); } - - return; } -static inline int -mpsc_tx_intr(struct mpsc_port_info *pi) +static int mpsc_tx_intr(struct mpsc_port_info *pi) { struct mpsc_tx_desc *txre; int rc = 0; @@ -1219,14 +1152,15 @@ mpsc_tx_intr(struct mpsc_port_info *pi) spin_lock_irqsave(&pi->tx_lock, iflags); if (!mpsc_sdma_tx_active(pi)) { - txre = (struct mpsc_tx_desc *)(pi->txr + - (pi->txr_tail * MPSC_TXRE_SIZE)); + txre = (struct mpsc_tx_desc *)(pi->txr + + (pi->txr_tail * MPSC_TXRE_SIZE)); - dma_cache_sync(pi->port.dev, (void *) txre, MPSC_TXRE_SIZE, DMA_FROM_DEVICE); + dma_cache_sync(pi->port.dev, (void *)txre, MPSC_TXRE_SIZE, + DMA_FROM_DEVICE); #if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE) if (pi->cache_mgmt) /* GT642[46]0 Res #COMM-2 */ invalidate_dcache_range((ulong)txre, - (ulong)txre + MPSC_TXRE_SIZE); + (ulong)txre + MPSC_TXRE_SIZE); #endif while (!(be32_to_cpu(txre->cmdstat) & SDMA_DESC_CMDSTAT_O)) { @@ -1238,14 +1172,14 @@ mpsc_tx_intr(struct mpsc_port_info *pi) if (pi->txr_head == pi->txr_tail) break; - txre = (struct mpsc_tx_desc *)(pi->txr + - (pi->txr_tail * MPSC_TXRE_SIZE)); - dma_cache_sync(pi->port.dev, (void *) txre, MPSC_TXRE_SIZE, - DMA_FROM_DEVICE); + txre = (struct mpsc_tx_desc *)(pi->txr + + (pi->txr_tail * MPSC_TXRE_SIZE)); + dma_cache_sync(pi->port.dev, (void *)txre, + MPSC_TXRE_SIZE, DMA_FROM_DEVICE); #if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE) if (pi->cache_mgmt) /* GT642[46]0 Res #COMM-2 */ invalidate_dcache_range((ulong)txre, - (ulong)txre + MPSC_TXRE_SIZE); + (ulong)txre + MPSC_TXRE_SIZE); #endif } @@ -1262,8 +1196,7 @@ mpsc_tx_intr(struct mpsc_port_info *pi) * the interrupt, then handle any completed Rx/Tx descriptors. When done * handling those descriptors, we restart the Rx/Tx engines if they're stopped. */ -static irqreturn_t -mpsc_sdma_intr(int irq, void *dev_id) +static irqreturn_t mpsc_sdma_intr(int irq, void *dev_id) { struct mpsc_port_info *pi = dev_id; ulong iflags; @@ -1290,8 +1223,7 @@ mpsc_sdma_intr(int irq, void *dev_id) * ****************************************************************************** */ -static uint -mpsc_tx_empty(struct uart_port *port) +static uint mpsc_tx_empty(struct uart_port *port) { struct mpsc_port_info *pi = (struct mpsc_port_info *)port; ulong iflags; @@ -1304,21 +1236,18 @@ mpsc_tx_empty(struct uart_port *port) return rc; } -static void -mpsc_set_mctrl(struct uart_port *port, uint mctrl) +static void mpsc_set_mctrl(struct uart_port *port, uint mctrl) { /* Have no way to set modem control lines AFAICT */ - return; } -static uint -mpsc_get_mctrl(struct uart_port *port) +static uint mpsc_get_mctrl(struct uart_port *port) { struct mpsc_port_info *pi = (struct mpsc_port_info *)port; u32 mflags, status; - status = (pi->mirror_regs) ? pi->MPSC_CHR_10_m : - readl(pi->mpsc_base + MPSC_CHR_10); + status = (pi->mirror_regs) ? pi->MPSC_CHR_10_m + : readl(pi->mpsc_base + MPSC_CHR_10); mflags = 0; if (status & 0x1) @@ -1329,19 +1258,16 @@ mpsc_get_mctrl(struct uart_port *port) return mflags | TIOCM_DSR; /* No way to tell if DSR asserted */ } -static void -mpsc_stop_tx(struct uart_port *port) +static void mpsc_stop_tx(struct uart_port *port) { struct mpsc_port_info *pi = (struct mpsc_port_info *)port; pr_debug("mpsc_stop_tx[%d]\n", port->line); mpsc_freeze(pi); - return; } -static void -mpsc_start_tx(struct uart_port *port) +static void mpsc_start_tx(struct uart_port *port) { struct mpsc_port_info *pi = (struct mpsc_port_info *)port; unsigned long iflags; @@ -1355,42 +1281,45 @@ mpsc_start_tx(struct uart_port *port) spin_unlock_irqrestore(&pi->tx_lock, iflags); pr_debug("mpsc_start_tx[%d]\n", port->line); - return; } -static void -mpsc_start_rx(struct mpsc_port_info *pi) +static void mpsc_start_rx(struct mpsc_port_info *pi) { pr_debug("mpsc_start_rx[%d]: Starting...\n", pi->port.line); - /* Issue a Receive Abort to clear any receive errors */ - writel(MPSC_CHR_2_RA, pi->mpsc_base + MPSC_CHR_2); if (pi->rcv_data) { mpsc_enter_hunt(pi); mpsc_sdma_cmd(pi, SDMA_SDCM_ERD); } - return; } -static void -mpsc_stop_rx(struct uart_port *port) +static void mpsc_stop_rx(struct uart_port *port) { struct mpsc_port_info *pi = (struct mpsc_port_info *)port; pr_debug("mpsc_stop_rx[%d]: Stopping...\n", port->line); + if (pi->mirror_regs) { + writel(pi->MPSC_CHR_2_m | MPSC_CHR_2_RA, + pi->mpsc_base + MPSC_CHR_2); + /* Erratum prevents reading CHR_2 so just delay for a while */ + udelay(100); + } else { + writel(readl(pi->mpsc_base + MPSC_CHR_2) | MPSC_CHR_2_RA, + pi->mpsc_base + MPSC_CHR_2); + + while (readl(pi->mpsc_base + MPSC_CHR_2) & MPSC_CHR_2_RA) + udelay(10); + } + mpsc_sdma_cmd(pi, SDMA_SDCM_AR); - return; } -static void -mpsc_enable_ms(struct uart_port *port) +static void mpsc_enable_ms(struct uart_port *port) { - return; /* Not supported */ } -static void -mpsc_break_ctl(struct uart_port *port, int ctl) +static void mpsc_break_ctl(struct uart_port *port, int ctl) { struct mpsc_port_info *pi = (struct mpsc_port_info *)port; ulong flags; @@ -1403,12 +1332,9 @@ mpsc_break_ctl(struct uart_port *port, int ctl) pi->MPSC_CHR_1_m = v; writel(v, pi->mpsc_base + MPSC_CHR_1); spin_unlock_irqrestore(&pi->port.lock, flags); - - return; } -static int -mpsc_startup(struct uart_port *port) +static int mpsc_startup(struct uart_port *port) { struct mpsc_port_info *pi = (struct mpsc_port_info *)port; u32 flag = 0; @@ -1426,20 +1352,19 @@ mpsc_startup(struct uart_port *port) flag = IRQF_SHARED; if (request_irq(pi->port.irq, mpsc_sdma_intr, flag, - "mpsc-sdma", pi)) + "mpsc-sdma", pi)) printk(KERN_ERR "MPSC: Can't get SDMA IRQ %d\n", - pi->port.irq); + pi->port.irq); mpsc_sdma_intr_unmask(pi, 0xf); - mpsc_sdma_set_rx_ring(pi, (struct mpsc_rx_desc *)(pi->rxr_p + - (pi->rxr_posn * MPSC_RXRE_SIZE))); + mpsc_sdma_set_rx_ring(pi, (struct mpsc_rx_desc *)(pi->rxr_p + + (pi->rxr_posn * MPSC_RXRE_SIZE))); } return rc; } -static void -mpsc_shutdown(struct uart_port *port) +static void mpsc_shutdown(struct uart_port *port) { struct mpsc_port_info *pi = (struct mpsc_port_info *)port; @@ -1447,11 +1372,9 @@ mpsc_shutdown(struct uart_port *port) mpsc_sdma_stop(pi); free_irq(pi->port.irq, pi); - return; } -static void -mpsc_set_termios(struct uart_port *port, struct ktermios *termios, +static void mpsc_set_termios(struct uart_port *port, struct ktermios *termios, struct ktermios *old) { struct mpsc_port_info *pi = (struct mpsc_port_info *)port; @@ -1508,12 +1431,11 @@ mpsc_set_termios(struct uart_port *port, struct ktermios *termios, mpsc_set_baudrate(pi, baud); /* Characters/events to read */ - pi->rcv_data = 1; pi->port.read_status_mask = SDMA_DESC_CMDSTAT_OR; if (termios->c_iflag & INPCK) - pi->port.read_status_mask |= SDMA_DESC_CMDSTAT_PE | - SDMA_DESC_CMDSTAT_FR; + pi->port.read_status_mask |= SDMA_DESC_CMDSTAT_PE + | SDMA_DESC_CMDSTAT_FR; if (termios->c_iflag & (BRKINT | PARMRK)) pi->port.read_status_mask |= SDMA_DESC_CMDSTAT_BR; @@ -1522,8 +1444,8 @@ mpsc_set_termios(struct uart_port *port, struct ktermios *termios, pi->port.ignore_status_mask = 0; if (termios->c_iflag & IGNPAR) - pi->port.ignore_status_mask |= SDMA_DESC_CMDSTAT_PE | - SDMA_DESC_CMDSTAT_FR; + pi->port.ignore_status_mask |= SDMA_DESC_CMDSTAT_PE + | SDMA_DESC_CMDSTAT_FR; if (termios->c_iflag & IGNBRK) { pi->port.ignore_status_mask |= SDMA_DESC_CMDSTAT_BR; @@ -1532,32 +1454,32 @@ mpsc_set_termios(struct uart_port *port, struct ktermios *termios, pi->port.ignore_status_mask |= SDMA_DESC_CMDSTAT_OR; } - /* Ignore all chars if CREAD not set */ - if (!(termios->c_cflag & CREAD)) + if ((termios->c_cflag & CREAD)) { + if (!pi->rcv_data) { + pi->rcv_data = 1; + mpsc_start_rx(pi); + } + } else if (pi->rcv_data) { + mpsc_stop_rx(port); pi->rcv_data = 0; - else - mpsc_start_rx(pi); + } spin_unlock_irqrestore(&pi->port.lock, flags); - return; } -static const char * -mpsc_type(struct uart_port *port) +static const char *mpsc_type(struct uart_port *port) { pr_debug("mpsc_type[%d]: port type: %s\n", port->line,MPSC_DRIVER_NAME); return MPSC_DRIVER_NAME; } -static int -mpsc_request_port(struct uart_port *port) +static int mpsc_request_port(struct uart_port *port) { /* Should make chip/platform specific call */ return 0; } -static void -mpsc_release_port(struct uart_port *port) +static void mpsc_release_port(struct uart_port *port) { struct mpsc_port_info *pi = (struct mpsc_port_info *)port; @@ -1566,18 +1488,13 @@ mpsc_release_port(struct uart_port *port) mpsc_free_ring_mem(pi); pi->ready = 0; } - - return; } -static void -mpsc_config_port(struct uart_port *port, int flags) +static void mpsc_config_port(struct uart_port *port, int flags) { - return; } -static int -mpsc_verify_port(struct uart_port *port, struct serial_struct *ser) +static int mpsc_verify_port(struct uart_port *port, struct serial_struct *ser) { struct mpsc_port_info *pi = (struct mpsc_port_info *)port; int rc = 0; @@ -1603,22 +1520,22 @@ mpsc_verify_port(struct uart_port *port, struct serial_struct *ser) } static struct uart_ops mpsc_pops = { - .tx_empty = mpsc_tx_empty, - .set_mctrl = mpsc_set_mctrl, - .get_mctrl = mpsc_get_mctrl, - .stop_tx = mpsc_stop_tx, - .start_tx = mpsc_start_tx, - .stop_rx = mpsc_stop_rx, - .enable_ms = mpsc_enable_ms, - .break_ctl = mpsc_break_ctl, - .startup = mpsc_startup, - .shutdown = mpsc_shutdown, - .set_termios = mpsc_set_termios, - .type = mpsc_type, - .release_port = mpsc_release_port, - .request_port = mpsc_request_port, - .config_port = mpsc_config_port, - .verify_port = mpsc_verify_port, + .tx_empty = mpsc_tx_empty, + .set_mctrl = mpsc_set_mctrl, + .get_mctrl = mpsc_get_mctrl, + .stop_tx = mpsc_stop_tx, + .start_tx = mpsc_start_tx, + .stop_rx = mpsc_stop_rx, + .enable_ms = mpsc_enable_ms, + .break_ctl = mpsc_break_ctl, + .startup = mpsc_startup, + .shutdown = mpsc_shutdown, + .set_termios = mpsc_set_termios, + .type = mpsc_type, + .release_port = mpsc_release_port, + .request_port = mpsc_request_port, + .config_port = mpsc_config_port, + .verify_port = mpsc_verify_port, }; /* @@ -1630,8 +1547,7 @@ static struct uart_ops mpsc_pops = { */ #ifdef CONFIG_SERIAL_MPSC_CONSOLE -static void -mpsc_console_write(struct console *co, const char *s, uint count) +static void mpsc_console_write(struct console *co, const char *s, uint count) { struct mpsc_port_info *pi = &mpsc_ports[co->index]; u8 *bp, *dp, add_cr = 0; @@ -1660,8 +1576,7 @@ mpsc_console_write(struct console *co, const char *s, uint count) if (add_cr) { *(dp++) = '\r'; add_cr = 0; - } - else { + } else { *(dp++) = *s; if (*(s++) == '\n') { /* add '\r' after '\n' */ @@ -1673,11 +1588,12 @@ mpsc_console_write(struct console *co, const char *s, uint count) count--; } - dma_cache_sync(pi->port.dev, (void *) bp, MPSC_TXBE_SIZE, DMA_BIDIRECTIONAL); + dma_cache_sync(pi->port.dev, (void *)bp, MPSC_TXBE_SIZE, + DMA_BIDIRECTIONAL); #if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE) if (pi->cache_mgmt) /* GT642[46]0 Res #COMM-2 */ flush_dcache_range((ulong)bp, - (ulong)bp + MPSC_TXBE_SIZE); + (ulong)bp + MPSC_TXBE_SIZE); #endif mpsc_setup_tx_desc(pi, i, 0); pi->txr_head = (pi->txr_head + 1) & (MPSC_TXR_ENTRIES - 1); @@ -1690,11 +1606,9 @@ mpsc_console_write(struct console *co, const char *s, uint count) } spin_unlock_irqrestore(&pi->tx_lock, iflags); - return; } -static int __init -mpsc_console_setup(struct console *co, char *options) +static int __init mpsc_console_setup(struct console *co, char *options) { struct mpsc_port_info *pi; int baud, bits, parity, flow; @@ -1723,17 +1637,16 @@ mpsc_console_setup(struct console *co, char *options) } static struct console mpsc_console = { - .name = MPSC_DEV_NAME, - .write = mpsc_console_write, - .device = uart_console_device, - .setup = mpsc_console_setup, - .flags = CON_PRINTBUFFER, - .index = -1, - .data = &mpsc_reg, + .name = MPSC_DEV_NAME, + .write = mpsc_console_write, + .device = uart_console_device, + .setup = mpsc_console_setup, + .flags = CON_PRINTBUFFER, + .index = -1, + .data = &mpsc_reg, }; -static int __init -mpsc_late_console_init(void) +static int __init mpsc_late_console_init(void) { pr_debug("mpsc_late_console_init: Enter\n"); @@ -1755,43 +1668,40 @@ late_initcall(mpsc_late_console_init); * ****************************************************************************** */ -static void -mpsc_resource_err(char *s) +static void mpsc_resource_err(char *s) { printk(KERN_WARNING "MPSC: Platform device resource error in %s\n", s); - return; } -static int -mpsc_shared_map_regs(struct platform_device *pd) +static int mpsc_shared_map_regs(struct platform_device *pd) { struct resource *r; if ((r = platform_get_resource(pd, IORESOURCE_MEM, - MPSC_ROUTING_BASE_ORDER)) && request_mem_region(r->start, - MPSC_ROUTING_REG_BLOCK_SIZE, "mpsc_routing_regs")) { - + MPSC_ROUTING_BASE_ORDER)) + && request_mem_region(r->start, + MPSC_ROUTING_REG_BLOCK_SIZE, + "mpsc_routing_regs")) { mpsc_shared_regs.mpsc_routing_base = ioremap(r->start, - MPSC_ROUTING_REG_BLOCK_SIZE); + MPSC_ROUTING_REG_BLOCK_SIZE); mpsc_shared_regs.mpsc_routing_base_p = r->start; - } - else { + } else { mpsc_resource_err("MPSC routing base"); return -ENOMEM; } if ((r = platform_get_resource(pd, IORESOURCE_MEM, - MPSC_SDMA_INTR_BASE_ORDER)) && request_mem_region(r->start, - MPSC_SDMA_INTR_REG_BLOCK_SIZE, "sdma_intr_regs")) { - + MPSC_SDMA_INTR_BASE_ORDER)) + && request_mem_region(r->start, + MPSC_SDMA_INTR_REG_BLOCK_SIZE, + "sdma_intr_regs")) { mpsc_shared_regs.sdma_intr_base = ioremap(r->start, MPSC_SDMA_INTR_REG_BLOCK_SIZE); mpsc_shared_regs.sdma_intr_base_p = r->start; - } - else { + } else { iounmap(mpsc_shared_regs.mpsc_routing_base); release_mem_region(mpsc_shared_regs.mpsc_routing_base_p, - MPSC_ROUTING_REG_BLOCK_SIZE); + MPSC_ROUTING_REG_BLOCK_SIZE); mpsc_resource_err("SDMA intr base"); return -ENOMEM; } @@ -1799,18 +1709,17 @@ mpsc_shared_map_regs(struct platform_device *pd) return 0; } -static void -mpsc_shared_unmap_regs(void) +static void mpsc_shared_unmap_regs(void) { if (!mpsc_shared_regs.mpsc_routing_base) { iounmap(mpsc_shared_regs.mpsc_routing_base); release_mem_region(mpsc_shared_regs.mpsc_routing_base_p, - MPSC_ROUTING_REG_BLOCK_SIZE); + MPSC_ROUTING_REG_BLOCK_SIZE); } if (!mpsc_shared_regs.sdma_intr_base) { iounmap(mpsc_shared_regs.sdma_intr_base); release_mem_region(mpsc_shared_regs.sdma_intr_base_p, - MPSC_SDMA_INTR_REG_BLOCK_SIZE); + MPSC_SDMA_INTR_REG_BLOCK_SIZE); } mpsc_shared_regs.mpsc_routing_base = NULL; @@ -1818,19 +1727,17 @@ mpsc_shared_unmap_regs(void) mpsc_shared_regs.mpsc_routing_base_p = 0; mpsc_shared_regs.sdma_intr_base_p = 0; - - return; } -static int -mpsc_shared_drv_probe(struct platform_device *dev) +static int mpsc_shared_drv_probe(struct platform_device *dev) { struct mpsc_shared_pdata *pdata; int rc = -ENODEV; if (dev->id == 0) { - if (!(rc = mpsc_shared_map_regs(dev))) { - pdata = (struct mpsc_shared_pdata *)dev->dev.platform_data; + if (!(rc = mpsc_shared_map_regs(dev))) { + pdata = (struct mpsc_shared_pdata *) + dev->dev.platform_data; mpsc_shared_regs.MPSC_MRR_m = pdata->mrr_val; mpsc_shared_regs.MPSC_RCRR_m= pdata->rcrr_val; @@ -1847,8 +1754,7 @@ mpsc_shared_drv_probe(struct platform_device *dev) return rc; } -static int -mpsc_shared_drv_remove(struct platform_device *dev) +static int mpsc_shared_drv_remove(struct platform_device *dev) { int rc = -ENODEV; @@ -1869,7 +1775,7 @@ static struct platform_driver mpsc_shared_driver = { .probe = mpsc_shared_drv_probe, .remove = mpsc_shared_drv_remove, .driver = { - .name = MPSC_SHARED_NAME, + .name = MPSC_SHARED_NAME, }, }; @@ -1881,55 +1787,51 @@ static struct platform_driver mpsc_shared_driver = { ****************************************************************************** */ static struct uart_driver mpsc_reg = { - .owner = THIS_MODULE, - .driver_name = MPSC_DRIVER_NAME, - .dev_name = MPSC_DEV_NAME, - .major = MPSC_MAJOR, - .minor = MPSC_MINOR_START, - .nr = MPSC_NUM_CTLRS, - .cons = MPSC_CONSOLE, + .owner = THIS_MODULE, + .driver_name = MPSC_DRIVER_NAME, + .dev_name = MPSC_DEV_NAME, + .major = MPSC_MAJOR, + .minor = MPSC_MINOR_START, + .nr = MPSC_NUM_CTLRS, + .cons = MPSC_CONSOLE, }; -static int -mpsc_drv_map_regs(struct mpsc_port_info *pi, struct platform_device *pd) +static int mpsc_drv_map_regs(struct mpsc_port_info *pi, + struct platform_device *pd) { struct resource *r; - if ((r = platform_get_resource(pd, IORESOURCE_MEM, MPSC_BASE_ORDER)) && - request_mem_region(r->start, MPSC_REG_BLOCK_SIZE, "mpsc_regs")){ - + if ((r = platform_get_resource(pd, IORESOURCE_MEM, MPSC_BASE_ORDER)) + && request_mem_region(r->start, MPSC_REG_BLOCK_SIZE, + "mpsc_regs")) { pi->mpsc_base = ioremap(r->start, MPSC_REG_BLOCK_SIZE); pi->mpsc_base_p = r->start; - } - else { + } else { mpsc_resource_err("MPSC base"); - return -ENOMEM; + goto err; } if ((r = platform_get_resource(pd, IORESOURCE_MEM, - MPSC_SDMA_BASE_ORDER)) && request_mem_region(r->start, - MPSC_SDMA_REG_BLOCK_SIZE, "sdma_regs")) { - + MPSC_SDMA_BASE_ORDER)) + && request_mem_region(r->start, + MPSC_SDMA_REG_BLOCK_SIZE, "sdma_regs")) { pi->sdma_base = ioremap(r->start,MPSC_SDMA_REG_BLOCK_SIZE); pi->sdma_base_p = r->start; - } - else { + } else { mpsc_resource_err("SDMA base"); if (pi->mpsc_base) { iounmap(pi->mpsc_base); pi->mpsc_base = NULL; } - return -ENOMEM; + goto err; } if ((r = platform_get_resource(pd,IORESOURCE_MEM,MPSC_BRG_BASE_ORDER)) - && request_mem_region(r->start, MPSC_BRG_REG_BLOCK_SIZE, - "brg_regs")) { - + && request_mem_region(r->start, + MPSC_BRG_REG_BLOCK_SIZE, "brg_regs")) { pi->brg_base = ioremap(r->start, MPSC_BRG_REG_BLOCK_SIZE); pi->brg_base_p = r->start; - } - else { + } else { mpsc_resource_err("BRG base"); if (pi->mpsc_base) { iounmap(pi->mpsc_base); @@ -1939,14 +1841,15 @@ mpsc_drv_map_regs(struct mpsc_port_info *pi, struct platform_device *pd) iounmap(pi->sdma_base); pi->sdma_base = NULL; } - return -ENOMEM; + goto err; } - return 0; + +err: + return -ENOMEM; } -static void -mpsc_drv_unmap_regs(struct mpsc_port_info *pi) +static void mpsc_drv_unmap_regs(struct mpsc_port_info *pi) { if (!pi->mpsc_base) { iounmap(pi->mpsc_base); @@ -1968,13 +1871,10 @@ mpsc_drv_unmap_regs(struct mpsc_port_info *pi) pi->mpsc_base_p = 0; pi->sdma_base_p = 0; pi->brg_base_p = 0; - - return; } -static void -mpsc_drv_get_platform_data(struct mpsc_port_info *pi, - struct platform_device *pd, int num) +static void mpsc_drv_get_platform_data(struct mpsc_port_info *pi, + struct platform_device *pd, int num) { struct mpsc_pdata *pdata; @@ -2009,12 +1909,9 @@ mpsc_drv_get_platform_data(struct mpsc_port_info *pi, pi->shared_regs = &mpsc_shared_regs; pi->port.irq = platform_get_irq(pd, 0); - - return; } -static int -mpsc_drv_probe(struct platform_device *dev) +static int mpsc_drv_probe(struct platform_device *dev) { struct mpsc_port_info *pi; int rc = -ENODEV; @@ -2030,47 +1927,46 @@ mpsc_drv_probe(struct platform_device *dev) if (!(rc = mpsc_make_ready(pi))) { spin_lock_init(&pi->tx_lock); if (!(rc = uart_add_one_port(&mpsc_reg, - &pi->port))) + &pi->port))) { rc = 0; - else { - mpsc_release_port( - (struct uart_port *)pi); + } else { + mpsc_release_port((struct uart_port *) + pi); mpsc_drv_unmap_regs(pi); } - } - else + } else { mpsc_drv_unmap_regs(pi); + } } } return rc; } -static int -mpsc_drv_remove(struct platform_device *dev) +static int mpsc_drv_remove(struct platform_device *dev) { pr_debug("mpsc_drv_exit: Removing MPSC %d\n", dev->id); if (dev->id < MPSC_NUM_CTLRS) { uart_remove_one_port(&mpsc_reg, &mpsc_ports[dev->id].port); - mpsc_release_port((struct uart_port *)&mpsc_ports[dev->id].port); + mpsc_release_port((struct uart_port *) + &mpsc_ports[dev->id].port); mpsc_drv_unmap_regs(&mpsc_ports[dev->id]); return 0; - } - else + } else { return -ENODEV; + } } static struct platform_driver mpsc_driver = { .probe = mpsc_drv_probe, .remove = mpsc_drv_remove, .driver = { - .name = MPSC_CTLR_NAME, + .name = MPSC_CTLR_NAME, }, }; -static int __init -mpsc_drv_init(void) +static int __init mpsc_drv_init(void) { int rc; @@ -2085,24 +1981,21 @@ mpsc_drv_init(void) platform_driver_unregister(&mpsc_shared_driver); uart_unregister_driver(&mpsc_reg); } - } - else + } else { uart_unregister_driver(&mpsc_reg); + } } return rc; - } -static void __exit -mpsc_drv_exit(void) +static void __exit mpsc_drv_exit(void) { platform_driver_unregister(&mpsc_driver); platform_driver_unregister(&mpsc_shared_driver); uart_unregister_driver(&mpsc_reg); memset(mpsc_ports, 0, sizeof(mpsc_ports)); memset(&mpsc_shared_regs, 0, sizeof(mpsc_shared_regs)); - return; } module_init(mpsc_drv_init); diff --git a/trunk/drivers/serial/sb1250-duart.c b/trunk/drivers/serial/sb1250-duart.c index 1d9d7285172a..201253755011 100644 --- a/trunk/drivers/serial/sb1250-duart.c +++ b/trunk/drivers/serial/sb1250-duart.c @@ -25,6 +25,7 @@ #define SUPPORT_SYSRQ #endif +#include #include #include #include @@ -103,8 +104,6 @@ struct sbd_duart { static struct sbd_duart sbd_duarts[DUART_MAX_CHIP]; -#define __unused __attribute__((__unused__)) - /* * Reading and writing SB1250 DUART registers. @@ -204,12 +203,12 @@ static int sbd_receive_drain(struct sbd_port *sport) return loops; } -static int __unused sbd_transmit_ready(struct sbd_port *sport) +static int __maybe_unused sbd_transmit_ready(struct sbd_port *sport) { return read_sbdchn(sport, R_DUART_STATUS) & M_DUART_TX_RDY; } -static int __unused sbd_transmit_drain(struct sbd_port *sport) +static int __maybe_unused sbd_transmit_drain(struct sbd_port *sport) { int loops = 10000; @@ -664,7 +663,7 @@ static void sbd_release_port(struct uart_port *uport) static int sbd_map_port(struct uart_port *uport) { - static const char *err = KERN_ERR "sbd: Cannot map MMIO\n"; + const char *err = KERN_ERR "sbd: Cannot map MMIO\n"; struct sbd_port *sport = to_sport(uport); struct sbd_duart *duart = sport->duart; @@ -691,8 +690,7 @@ static int sbd_map_port(struct uart_port *uport) static int sbd_request_port(struct uart_port *uport) { - static const char *err = KERN_ERR - "sbd: Unable to reserve MMIO resource\n"; + const char *err = KERN_ERR "sbd: Unable to reserve MMIO resource\n"; struct sbd_duart *duart = to_sport(uport)->duart; int map_guard; int ret = 0; @@ -755,7 +753,7 @@ static int sbd_verify_port(struct uart_port *uport, struct serial_struct *ser) } -static struct uart_ops sbd_ops = { +static const struct uart_ops sbd_ops = { .tx_empty = sbd_tx_empty, .set_mctrl = sbd_set_mctrl, .get_mctrl = sbd_get_mctrl, diff --git a/trunk/drivers/serial/serial_txx9.c b/trunk/drivers/serial/serial_txx9.c index 1deb5764326d..b8f91e018b21 100644 --- a/trunk/drivers/serial/serial_txx9.c +++ b/trunk/drivers/serial/serial_txx9.c @@ -1043,8 +1043,9 @@ static int __devinit serial_txx9_probe(struct platform_device *dev) ret = serial_txx9_register_port(&port); if (ret < 0) { dev_err(&dev->dev, "unable to register port at index %d " - "(IO%x MEM%lx IRQ%d): %d\n", i, - p->iobase, p->mapbase, p->irq, ret); + "(IO%x MEM%llx IRQ%d): %d\n", i, + p->iobase, (unsigned long long)p->mapbase, + p->irq, ret); } } return 0; diff --git a/trunk/drivers/serial/sh-sci.c b/trunk/drivers/serial/sh-sci.c index 672cd1042539..053fca41b08a 100644 --- a/trunk/drivers/serial/sh-sci.c +++ b/trunk/drivers/serial/sh-sci.c @@ -12,6 +12,7 @@ * Modified to support multiple serial ports. Stuart Menefy (May 2000). * Modified to support SecureEdge. David McCullough (2002) * Modified to support SH7300 SCIF. Takashi Kusuda (Jun 2003). + * Removed SH7300 support (Jul 2007). * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -289,13 +290,7 @@ static void sci_init_pins_irda(struct uart_port *port, unsigned int cflag) #endif #if defined(SCIF_ONLY) || defined(SCI_AND_SCIF) -#if defined(CONFIG_CPU_SUBTYPE_SH7300) -/* SH7300 doesn't use RTS/CTS */ -static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag) -{ - sci_out(port, SCFCR, 0); -} -#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712) +#if defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712) static void sci_init_pins_scif(struct uart_port* port, unsigned int cflag) { unsigned int fcr_val = 0; diff --git a/trunk/drivers/serial/sh-sci.h b/trunk/drivers/serial/sh-sci.h index 247fb66bf0f4..cf75466ebf57 100644 --- a/trunk/drivers/serial/sh-sci.h +++ b/trunk/drivers/serial/sh-sci.h @@ -9,6 +9,7 @@ * Modified to support multiple serial ports. Stuart Menefy (May 2000). * Modified to support SH7300(SH-Mobile) SCIF. Takashi Kusuda (Jun 2003). * Modified to support H8/300 Series Yoshinori Sato (Feb 2004). + * Removed SH7300 support (Jul 2007). */ #include #include @@ -23,13 +24,10 @@ #endif #endif -#if defined(CONFIG_CPU_SUBTYPE_SH7708) -# define SCSPTR 0xffffff7c /* 8 bit */ -# define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ -# define SCI_ONLY -#elif defined(CONFIG_CPU_SUBTYPE_SH7707) || \ - defined(CONFIG_CPU_SUBTYPE_SH7709) || \ - defined(CONFIG_CPU_SUBTYPE_SH7706) +#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \ + defined(CONFIG_CPU_SUBTYPE_SH7707) || \ + defined(CONFIG_CPU_SUBTYPE_SH7708) || \ + defined(CONFIG_CPU_SUBTYPE_SH7709) # define SCPCR 0xA4000116 /* 16 bit SCI and SCIF */ # define SCPDR 0xA4000136 /* 8 bit SCI and SCIF */ # define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ @@ -73,11 +71,6 @@ # define SCIF_ORER 0x0001 /* overrun error bit */ # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ # define SCIF_ONLY -#elif defined(CONFIG_CPU_SUBTYPE_SH7300) -# define SCPCR 0xA4050116 /* 16 bit SCIF */ -# define SCPDR 0xA4050136 /* 16 bit SCIF */ -# define SCSCR_INIT(port) 0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */ -# define SCIF_ONLY #elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712) # define SCSPTR0 0xA4400000 /* 16 bit SCIF */ # define SCI_NPORTS 2 @@ -86,12 +79,6 @@ # define PBCR 0xa4050102 # define SCSCR_INIT(port) 0x3B # define SCIF_ONLY -#elif defined(CONFIG_CPU_SUBTYPE_SH73180) -# define SCPDR 0xA4050138 /* 16 bit SCIF */ -# define SCSPTR2 SCPDR -# define SCIF_ORER 0x0001 /* overrun error bit */ -# define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1 */ -# define SCIF_ONLY #elif defined(CONFIG_CPU_SUBTYPE_SH7343) # define SCSPTR0 0xffe00010 /* 16 bit SCIF */ # define SCSPTR1 0xffe10010 /* 16 bit SCIF */ @@ -230,7 +217,7 @@ #define SCIF_RDF 0x0002 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ #define SCIF_DR 0x0001 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */ -#if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705) +#if defined(CONFIG_CPU_SUBTYPE_SH7705) #define SCIF_ORER 0x0200 #define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK | SCIF_ORER) #define SCIF_RFDC_MASK 0x007f @@ -259,7 +246,7 @@ # define SCxSR_ERRORS(port) SCIF_ERRORS # define SCxSR_RDxF(port) SCIF_RDF # define SCxSR_TDxE(port) SCIF_TDFE -#if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705) +#if defined(CONFIG_CPU_SUBTYPE_SH7705) # define SCxSR_ORER(port) SCIF_ORER #else # define SCxSR_ORER(port) 0x0000 @@ -267,13 +254,13 @@ # define SCxSR_FER(port) SCIF_FER # define SCxSR_PER(port) SCIF_PER # define SCxSR_BRK(port) SCIF_BRK -#if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705) +#if defined(CONFIG_CPU_SUBTYPE_SH7705) # define SCxSR_RDxF_CLEAR(port) (sci_in(port,SCxSR)&0xfffc) # define SCxSR_ERROR_CLEAR(port) (sci_in(port,SCxSR)&0xfd73) # define SCxSR_TDxE_CLEAR(port) (sci_in(port,SCxSR)&0xffdf) # define SCxSR_BREAK_CLEAR(port) (sci_in(port,SCxSR)&0xffe3) #else -/* SH7705 can also use this, clearing is same between 7705 and 7709 and 7300 */ +/* SH7705 can also use this, clearing is same between 7705 and 7709 */ # define SCxSR_RDxF_CLEAR(port) 0x00fc # define SCxSR_ERROR_CLEAR(port) 0x0073 # define SCxSR_TDxE_CLEAR(port) 0x00df @@ -375,8 +362,7 @@ CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size, sh4_scif_offset, sh4_scif_size) #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \ CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) -#elif defined(CONFIG_CPU_SUBTYPE_SH7300) || \ - defined(CONFIG_CPU_SUBTYPE_SH7705) +#elif defined(CONFIG_CPU_SUBTYPE_SH7705) #define SCIF_FNS(name, scif_offset, scif_size) \ CPU_SCIF_FNS(name, scif_offset, scif_size) #else @@ -402,8 +388,7 @@ CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) #endif -#if defined(CONFIG_CPU_SUBTYPE_SH7300) || \ - defined(CONFIG_CPU_SUBTYPE_SH7705) +#if defined(CONFIG_CPU_SUBTYPE_SH7705) SCIF_FNS(SCSMR, 0x00, 16) SCIF_FNS(SCBRR, 0x04, 8) @@ -485,16 +470,10 @@ static const struct __attribute__((packed)) { }; #endif -#if defined(CONFIG_CPU_SUBTYPE_SH7708) -static inline int sci_rxd_in(struct uart_port *port) -{ - if (port->mapbase == 0xfffffe80) - return ctrl_inb(SCSPTR)&0x01 ? 1 : 0; /* SCI */ - return 1; -} -#elif defined(CONFIG_CPU_SUBTYPE_SH7707) || \ - defined(CONFIG_CPU_SUBTYPE_SH7709) || \ - defined(CONFIG_CPU_SUBTYPE_SH7706) +#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \ + defined(CONFIG_CPU_SUBTYPE_SH7707) || \ + defined(CONFIG_CPU_SUBTYPE_SH7708) || \ + defined(CONFIG_CPU_SUBTYPE_SH7709) static inline int sci_rxd_in(struct uart_port *port) { if (port->mapbase == 0xfffffe80) @@ -562,18 +541,6 @@ static inline int sci_rxd_in(struct uart_port *port) return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */ return 1; } -#elif defined(CONFIG_CPU_SUBTYPE_SH7300) -static inline int sci_rxd_in(struct uart_port *port) -{ - if (port->mapbase == 0xa4430000) - return ctrl_inb(SCPDR)&0x01 ? 1 : 0; /* SCIF0 */ - return 1; -} -#elif defined(CONFIG_CPU_SUBTYPE_SH73180) -static inline int sci_rxd_in(struct uart_port *port) -{ - return ctrl_inb(SCPDR)&0x01 ? 1 : 0; /* SCIF0 */ -} #elif defined(CONFIG_CPU_SUBTYPE_SH7343) static inline int sci_rxd_in(struct uart_port *port) { @@ -721,8 +688,7 @@ static inline int sci_rxd_in(struct uart_port *port) * -- Mitch Davis - 15 Jul 2000 */ -#if defined(CONFIG_CPU_SUBTYPE_SH7300) || \ - defined(CONFIG_CPU_SUBTYPE_SH7780) || \ +#if defined(CONFIG_CPU_SUBTYPE_SH7780) || \ defined(CONFIG_CPU_SUBTYPE_SH7785) #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1) #elif defined(CONFIG_CPU_SUBTYPE_SH7705) diff --git a/trunk/drivers/serial/vr41xx_siu.c b/trunk/drivers/serial/vr41xx_siu.c index 85309acb75f6..6fd51b0022ca 100644 --- a/trunk/drivers/serial/vr41xx_siu.c +++ b/trunk/drivers/serial/vr41xx_siu.c @@ -65,7 +65,9 @@ static struct uart_port siu_uart_ports[SIU_PORTS_MAX] = { }, }; +#ifdef CONFIG_SERIAL_VR41XX_CONSOLE static uint8_t lsr_break_flag[SIU_PORTS_MAX]; +#endif #define siu_read(port, offset) readb((port)->membase + (offset)) #define siu_write(port, offset, value) writeb((value), (port)->membase + (offset)) @@ -782,7 +784,7 @@ static void siu_console_write(struct console *con, const char *s, unsigned count siu_write(port, UART_IER, ier); } -static int siu_console_setup(struct console *con, char *options) +static int __init siu_console_setup(struct console *con, char *options) { struct uart_port *port; int baud = 9600; @@ -800,7 +802,8 @@ static int siu_console_setup(struct console *con, char *options) port->membase = ioremap(port->mapbase, siu_port_size(port)); } - vr41xx_select_siu_interface(SIU_INTERFACE_RS232C); + if (port->type == PORT_VR41XX_SIU) + vr41xx_select_siu_interface(SIU_INTERFACE_RS232C); if (options != NULL) uart_parse_options(options, &baud, &parity, &bits, &flow); diff --git a/trunk/drivers/spi/spi.c b/trunk/drivers/spi/spi.c index b05de30b5d9b..e84d21597943 100644 --- a/trunk/drivers/spi/spi.c +++ b/trunk/drivers/spi/spi.c @@ -200,6 +200,8 @@ static DEFINE_MUTEX(board_lock); * platforms may not be able to use spi_register_board_info though, and * this is exported so that for example a USB or parport based adapter * driver could add devices (which it would learn about out-of-band). + * + * Returns the new device, or NULL. */ struct spi_device *spi_new_device(struct spi_master *master, struct spi_board_info *chip) @@ -208,7 +210,20 @@ struct spi_device *spi_new_device(struct spi_master *master, struct device *dev = master->cdev.dev; int status; - /* NOTE: caller did any chip->bus_num checks necessary */ + /* NOTE: caller did any chip->bus_num checks necessary. + * + * Also, unless we change the return value convention to use + * error-or-pointer (not NULL-or-pointer), troubleshootability + * suggests syslogged diagnostics are best here (ugh). + */ + + /* Chipselects are numbered 0..max; validate. */ + if (chip->chip_select >= master->num_chipselect) { + dev_err(dev, "cs%d > max %d\n", + chip->chip_select, + master->num_chipselect); + return NULL; + } if (!spi_master_get(master)) return NULL; @@ -236,10 +251,10 @@ struct spi_device *spi_new_device(struct spi_master *master, proxy->controller_state = NULL; proxy->dev.release = spidev_release; - /* drivers may modify this default i/o setup */ + /* drivers may modify this initial i/o setup */ status = master->setup(proxy); if (status < 0) { - dev_dbg(dev, "can't %s %s, status %d\n", + dev_err(dev, "can't %s %s, status %d\n", "setup", proxy->dev.bus_id, status); goto fail; } @@ -249,7 +264,7 @@ struct spi_device *spi_new_device(struct spi_master *master, */ status = device_register(&proxy->dev); if (status < 0) { - dev_dbg(dev, "can't %s %s, status %d\n", + dev_err(dev, "can't %s %s, status %d\n", "add", proxy->dev.bus_id, status); goto fail; } @@ -306,7 +321,6 @@ spi_register_board_info(struct spi_board_info const *info, unsigned n) static void scan_boardinfo(struct spi_master *master) { struct boardinfo *bi; - struct device *dev = master->cdev.dev; mutex_lock(&board_lock); list_for_each_entry(bi, &board_list, list) { @@ -316,17 +330,9 @@ static void scan_boardinfo(struct spi_master *master) for (n = bi->n_board_info; n > 0; n--, chip++) { if (chip->bus_num != master->bus_num) continue; - /* some controllers only have one chip, so they - * might not use chipselects. otherwise, the - * chipselects are numbered 0..max. + /* NOTE: this relies on spi_new_device to + * issue diagnostics when given bogus inputs */ - if (chip->chip_select >= master->num_chipselect - && master->num_chipselect) { - dev_dbg(dev, "cs%d > max %d\n", - chip->chip_select, - master->num_chipselect); - continue; - } (void) spi_new_device(master, chip); } } @@ -419,8 +425,17 @@ int spi_register_master(struct spi_master *master) if (!dev) return -ENODEV; + /* even if it's just one always-selected device, there must + * be at least one chipselect + */ + if (master->num_chipselect == 0) + return -EINVAL; + /* convention: dynamically assigned bus IDs count down from the max */ if (master->bus_num < 0) { + /* FIXME switch to an IDR based scheme, something like + * I2C now uses, so we can't run out of "dynamic" IDs + */ master->bus_num = atomic_dec_return(&dyn_bus_id); dynamic = 1; } diff --git a/trunk/drivers/spi/spi_mpc83xx.c b/trunk/drivers/spi/spi_mpc83xx.c index 3295cfcc9f20..0c16a2b39b41 100644 --- a/trunk/drivers/spi/spi_mpc83xx.c +++ b/trunk/drivers/spi/spi_mpc83xx.c @@ -39,6 +39,7 @@ struct mpc83xx_spi_reg { }; /* SPI Controller mode register definitions */ +#define SPMODE_LOOP (1 << 30) #define SPMODE_CI_INACTIVEHIGH (1 << 29) #define SPMODE_CP_BEGIN_EDGECLK (1 << 28) #define SPMODE_DIV16 (1 << 27) @@ -153,12 +154,18 @@ static void mpc83xx_spi_chipselect(struct spi_device *spi, int value) len = len - 1; /* mask out bits we are going to set */ - regval &= ~0x38ff0000; + regval &= ~(SPMODE_CP_BEGIN_EDGECLK | SPMODE_CI_INACTIVEHIGH + | SPMODE_LEN(0xF) | SPMODE_DIV16 + | SPMODE_PM(0xF) | SPMODE_REV | SPMODE_LOOP); if (spi->mode & SPI_CPHA) regval |= SPMODE_CP_BEGIN_EDGECLK; if (spi->mode & SPI_CPOL) regval |= SPMODE_CI_INACTIVEHIGH; + if (!(spi->mode & SPI_LSB_FIRST)) + regval |= SPMODE_REV; + if (spi->mode & SPI_LOOP) + regval |= SPMODE_LOOP; regval |= SPMODE_LEN(len); @@ -176,6 +183,8 @@ static void mpc83xx_spi_chipselect(struct spi_device *spi, int value) regval |= SPMODE_PM(pm); } + /* Turn off SPI unit prior changing mode */ + mpc83xx_spi_write_reg(&mpc83xx_spi->base->mode, 0); mpc83xx_spi_write_reg(&mpc83xx_spi->base->mode, regval); if (mpc83xx_spi->activate_cs) mpc83xx_spi->activate_cs(spi->chip_select, pol); @@ -231,6 +240,14 @@ int mpc83xx_spi_setup_transfer(struct spi_device *spi, struct spi_transfer *t) } else return -EINVAL; + if (mpc83xx_spi->qe_mode && spi->mode & SPI_LSB_FIRST) { + mpc83xx_spi->tx_shift = 0; + if (bits_per_word <= 8) + mpc83xx_spi->rx_shift = 8; + else + mpc83xx_spi->rx_shift = 0; + } + /* nsecs = (clock period)/2 */ if (!hz) hz = spi->max_speed_hz; @@ -245,17 +262,22 @@ int mpc83xx_spi_setup_transfer(struct spi_device *spi, struct spi_transfer *t) regval = mpc83xx_spi_read_reg(&mpc83xx_spi->base->mode); - /* Mask out bits_per_wordgth */ - regval &= 0xff0fffff; + /* mask out bits we are going to set */ + regval &= ~(SPMODE_LEN(0xF) | SPMODE_REV); regval |= SPMODE_LEN(bits_per_word); + if (!(spi->mode & SPI_LSB_FIRST)) + regval |= SPMODE_REV; + /* Turn off SPI unit prior changing mode */ + mpc83xx_spi_write_reg(&mpc83xx_spi->base->mode, 0); mpc83xx_spi_write_reg(&mpc83xx_spi->base->mode, regval); return 0; } /* the spi->mode bits understood by this driver: */ -#define MODEBITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH) +#define MODEBITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH \ + | SPI_LSB_FIRST | SPI_LOOP) static int mpc83xx_spi_setup(struct spi_device *spi) { diff --git a/trunk/drivers/spi/spidev.c b/trunk/drivers/spi/spidev.c index 38b60ad0eda0..630f781aeb19 100644 --- a/trunk/drivers/spi/spidev.c +++ b/trunk/drivers/spi/spidev.c @@ -55,9 +55,16 @@ static unsigned long minors[N_SPI_MINORS / BITS_PER_LONG]; -/* Bit masks for spi_device.mode management */ -#define SPI_MODE_MASK (SPI_CPHA | SPI_CPOL) - +/* Bit masks for spi_device.mode management. Note that incorrect + * settings for CS_HIGH and 3WIRE can cause *lots* of trouble for other + * devices on a shared bus: CS_HIGH, because this device will be + * active when it shouldn't be; 3WIRE, because when active it won't + * behave as it should. + * + * REVISIT should changing those two modes be privileged? + */ +#define SPI_MODE_MASK (SPI_CPHA | SPI_CPOL | SPI_CS_HIGH \ + | SPI_LSB_FIRST | SPI_3WIRE | SPI_LOOP) struct spidev_data { struct device dev; diff --git a/trunk/drivers/usb/Makefile b/trunk/drivers/usb/Makefile index befff5f9d58c..ac49b15fa768 100644 --- a/trunk/drivers/usb/Makefile +++ b/trunk/drivers/usb/Makefile @@ -48,6 +48,7 @@ obj-$(CONFIG_USB_SISUSBVGA) += misc/ obj-$(CONFIG_USB_TEST) += misc/ obj-$(CONFIG_USB_TRANCEVIBRATOR)+= misc/ obj-$(CONFIG_USB_USS720) += misc/ +obj-$(CONFIG_USB_IOWARRIOR) += misc/ obj-$(CONFIG_USB_ATM) += atm/ obj-$(CONFIG_USB_SPEEDTOUCH) += atm/ diff --git a/trunk/drivers/usb/core/message.c b/trunk/drivers/usb/core/message.c index 25f63f1096b4..b6bd05e3d439 100644 --- a/trunk/drivers/usb/core/message.c +++ b/trunk/drivers/usb/core/message.c @@ -18,9 +18,17 @@ #include "hcd.h" /* for usbcore internals */ #include "usb.h" +struct api_context { + struct completion done; + int status; +}; + static void usb_api_blocking_completion(struct urb *urb) { - complete((struct completion *)urb->context); + struct api_context *ctx = urb->context; + + ctx->status = urb->status; + complete(&ctx->done); } @@ -32,20 +40,21 @@ static void usb_api_blocking_completion(struct urb *urb) */ static int usb_start_wait_urb(struct urb *urb, int timeout, int *actual_length) { - struct completion done; + struct api_context ctx; unsigned long expire; int retval; - int status = urb->status; - init_completion(&done); - urb->context = &done; + init_completion(&ctx.done); + urb->context = &ctx; urb->actual_length = 0; retval = usb_submit_urb(urb, GFP_NOIO); if (unlikely(retval)) goto out; expire = timeout ? msecs_to_jiffies(timeout) : MAX_SCHEDULE_TIMEOUT; - if (!wait_for_completion_timeout(&done, expire)) { + if (!wait_for_completion_timeout(&ctx.done, expire)) { + usb_kill_urb(urb); + retval = (ctx.status == -ENOENT ? -ETIMEDOUT : ctx.status); dev_dbg(&urb->dev->dev, "%s timed out on ep%d%s len=%d/%d\n", @@ -54,11 +63,8 @@ static int usb_start_wait_urb(struct urb *urb, int timeout, int *actual_length) usb_pipein(urb->pipe) ? "in" : "out", urb->actual_length, urb->transfer_buffer_length); - - usb_kill_urb(urb); - retval = status == -ENOENT ? -ETIMEDOUT : status; } else - retval = status; + retval = ctx.status; out: if (actual_length) *actual_length = urb->actual_length; @@ -411,15 +417,22 @@ int usb_sg_init ( * Some systems need to revert to PIO when DMA is temporarily * unavailable. For their sakes, both transfer_buffer and * transfer_dma are set when possible. However this can only - * work on systems without HIGHMEM, since DMA buffers located - * in high memory are not directly addressable by the CPU for - * PIO ... so when HIGHMEM is in use, transfer_buffer is NULL + * work on systems without: + * + * - HIGHMEM, since DMA buffers located in high memory are + * not directly addressable by the CPU for PIO; + * + * - IOMMU, since dma_map_sg() is allowed to use an IOMMU to + * make virtually discontiguous buffers be "dma-contiguous" + * so that PIO and DMA need diferent numbers of URBs. + * + * So when HIGHMEM or IOMMU are in use, transfer_buffer is NULL * to prevent stale pointers and to help spot bugs. */ if (dma) { io->urbs [i]->transfer_dma = sg_dma_address (sg + i); len = sg_dma_len (sg + i); -#ifdef CONFIG_HIGHMEM +#if defined(CONFIG_HIGHMEM) || defined(CONFIG_IOMMU) io->urbs[i]->transfer_buffer = NULL; #else io->urbs[i]->transfer_buffer = diff --git a/trunk/drivers/usb/core/quirks.c b/trunk/drivers/usb/core/quirks.c index aa21b38a31ce..b7917c5a3c6f 100644 --- a/trunk/drivers/usb/core/quirks.c +++ b/trunk/drivers/usb/core/quirks.c @@ -30,18 +30,40 @@ static const struct usb_device_id usb_quirk_list[] = { /* HP 5300/5370C scanner */ { USB_DEVICE(0x03f0, 0x0701), .driver_info = USB_QUIRK_STRING_FETCH_255 }, + /* Acer Peripherals Inc. (now BenQ Corp.) Prisa 640BU */ + { USB_DEVICE(0x04a5, 0x207e), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, /* Benq S2W 3300U */ { USB_DEVICE(0x04a5, 0x20b0), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Canon, Inc. CanoScan N1240U/LiDE30 */ + { USB_DEVICE(0x04a9, 0x220e), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Canon, Inc. CanoScan N650U/N656U */ + { USB_DEVICE(0x04a9, 0x2206), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Canon, Inc. CanoScan 1220U */ + { USB_DEVICE(0x04a9, 0x2207), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Canon, Inc. CanoScan N670U/N676U/LiDE 20 */ + { USB_DEVICE(0x04a9, 0x220d), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* old Cannon scanner */ + { USB_DEVICE(0x04a9, 0x2220), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, /* Seiko Epson Corp. Perfection 1200 */ { USB_DEVICE(0x04b8, 0x0104), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Seiko Epson Corp. Perfection 660 */ + { USB_DEVICE(0x04b8, 0x0114), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Epson Perfection 1260 Photo */ + { USB_DEVICE(0x04b8, 0x011d), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, /* Seiko Epson Corp - Perfection 1670 */ { USB_DEVICE(0x04b8, 0x011f), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* EPSON Perfection 2480 */ + { USB_DEVICE(0x04b8, 0x0121), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Seiko Epson Corp.*/ + { USB_DEVICE(0x04b8, 0x0122), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, /* Samsung ML-2510 Series printer */ { USB_DEVICE(0x04e8, 0x327e), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, /* Elsa MicroLink 56k (V.250) */ { USB_DEVICE(0x05cc, 0x2267), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, /* Ultima Electronics Corp.*/ { USB_DEVICE(0x05d8, 0x4005), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Agfa Snapscan1212u */ + { USB_DEVICE(0x06bd, 0x2061), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, /* Umax [hex] Astra 3400U */ { USB_DEVICE(0x1606, 0x0060), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, diff --git a/trunk/drivers/usb/gadget/config.c b/trunk/drivers/usb/gadget/config.c index d18901b92cda..c6760aee1e5c 100644 --- a/trunk/drivers/usb/gadget/config.c +++ b/trunk/drivers/usb/gadget/config.c @@ -50,7 +50,7 @@ usb_descriptor_fillbuf(void *buf, unsigned buflen, return -EINVAL; /* fill buffer from src[] until null descriptor ptr */ - for (; 0 != *src; src++) { + for (; NULL != *src; src++) { unsigned len = (*src)->bLength; if (len > buflen) diff --git a/trunk/drivers/usb/gadget/epautoconf.c b/trunk/drivers/usb/gadget/epautoconf.c index 6042364402b8..3aa46cfa66ba 100644 --- a/trunk/drivers/usb/gadget/epautoconf.c +++ b/trunk/drivers/usb/gadget/epautoconf.c @@ -71,7 +71,7 @@ ep_matches ( u16 max; /* endpoint already claimed? */ - if (0 != ep->driver_data) + if (NULL != ep->driver_data) return 0; /* only support ep0 for portable CONTROL traffic */ diff --git a/trunk/drivers/usb/gadget/ether.c b/trunk/drivers/usb/gadget/ether.c index a3376739a81b..593e23507b1a 100644 --- a/trunk/drivers/usb/gadget/ether.c +++ b/trunk/drivers/usb/gadget/ether.c @@ -1723,7 +1723,8 @@ rx_submit (struct eth_dev *dev, struct usb_request *req, gfp_t gfp_flags) size += sizeof (struct rndis_packet_msg_type); size -= size % dev->out_ep->maxpacket; - if ((skb = alloc_skb (size + NET_IP_ALIGN, gfp_flags)) == 0) { + skb = alloc_skb(size + NET_IP_ALIGN, gfp_flags); + if (skb == NULL) { DEBUG (dev, "no rx skb\n"); goto enomem; } diff --git a/trunk/drivers/usb/gadget/inode.c b/trunk/drivers/usb/gadget/inode.c index e60745ffaf8e..173004f60fea 100644 --- a/trunk/drivers/usb/gadget/inode.c +++ b/trunk/drivers/usb/gadget/inode.c @@ -964,7 +964,7 @@ static int setup_req (struct usb_ep *ep, struct usb_request *req, u16 len) } if (len > sizeof (dev->rbuf)) req->buf = kmalloc(len, GFP_ATOMIC); - if (req->buf == 0) { + if (req->buf == NULL) { req->buf = dev->rbuf; return -ENOMEM; } @@ -1394,7 +1394,7 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) dev->setup_abort = 0; if (dev->state == STATE_DEV_UNCONNECTED) { #ifdef CONFIG_USB_GADGET_DUALSPEED - if (gadget->speed == USB_SPEED_HIGH && dev->hs_config == 0) { + if (gadget->speed == USB_SPEED_HIGH && dev->hs_config == NULL) { spin_unlock(&dev->lock); ERROR (dev, "no high speed config??\n"); return -EINVAL; diff --git a/trunk/drivers/usb/gadget/m66592-udc.c b/trunk/drivers/usb/gadget/m66592-udc.c index 700dda8a9157..4b27d12f049d 100644 --- a/trunk/drivers/usb/gadget/m66592-udc.c +++ b/trunk/drivers/usb/gadget/m66592-udc.c @@ -1299,7 +1299,7 @@ static int m66592_queue(struct usb_ep *_ep, struct usb_request *_req, req->req.actual = 0; req->req.status = -EINPROGRESS; - if (ep->desc == 0) /* control */ + if (ep->desc == NULL) /* control */ start_ep0(ep, req); else { if (request && !ep->busy) diff --git a/trunk/drivers/usb/gadget/pxa2xx_udc.c b/trunk/drivers/usb/gadget/pxa2xx_udc.c index 63b9521c1322..72b4ebbf132d 100644 --- a/trunk/drivers/usb/gadget/pxa2xx_udc.c +++ b/trunk/drivers/usb/gadget/pxa2xx_udc.c @@ -93,8 +93,6 @@ static const char driver_name [] = "pxa2xx_udc"; static const char ep0name [] = "ep0"; -// #define DISABLE_TEST_MODE - #ifdef CONFIG_ARCH_IXP4XX /* cpu-specific register addresses are compiled in to this code */ @@ -113,17 +111,6 @@ static const char ep0name [] = "ep0"; #define SIZE_STR "" #endif -#ifdef DISABLE_TEST_MODE -/* (mode == 0) == no undocumented chip tweaks - * (mode & 1) == double buffer bulk IN - * (mode & 2) == double buffer bulk OUT - * ... so mode = 3 (or 7, 15, etc) does it for both - */ -static ushort fifo_mode = 0; -module_param(fifo_mode, ushort, 0); -MODULE_PARM_DESC (fifo_mode, "pxa2xx udc fifo mode"); -#endif - /* --------------------------------------------------------------------------- * endpoint related parts of the api to the usb controller hardware, * used by gadget driver; and the inner talker-to-hardware core. @@ -1252,23 +1239,6 @@ static void udc_enable (struct pxa2xx_udc *dev) UDC_RES2 = 0x00; } -#ifdef DISABLE_TEST_MODE - /* "test mode" seems to have become the default in later chip - * revs, preventing double buffering (and invalidating docs). - * this EXPERIMENT enables it for bulk endpoints by tweaking - * undefined/reserved register bits (that other drivers clear). - * Belcarra code comments noted this usage. - */ - if (fifo_mode & 1) { /* IN endpoints */ - UDC_RES1 |= USIR0_IR1|USIR0_IR6; - UDC_RES2 |= USIR1_IR11; - } - if (fifo_mode & 2) { /* OUT endpoints */ - UDC_RES1 |= USIR0_IR2|USIR0_IR7; - UDC_RES2 |= USIR1_IR12; - } -#endif - /* enable suspend/resume and reset irqs */ udc_clear_mask_UDCCR(UDCCR_SRM | UDCCR_REM); diff --git a/trunk/drivers/usb/gadget/zero.c b/trunk/drivers/usb/gadget/zero.c index a2e6e3fc8c8d..fcfe869acb94 100644 --- a/trunk/drivers/usb/gadget/zero.c +++ b/trunk/drivers/usb/gadget/zero.c @@ -653,7 +653,8 @@ set_source_sink_config (struct zero_dev *dev, gfp_t gfp_flags) result = usb_ep_enable (ep, d); if (result == 0) { ep->driver_data = dev; - if (source_sink_start_ep (ep, gfp_flags) != 0) { + if (source_sink_start_ep(ep, gfp_flags) + != NULL) { dev->in_ep = ep; continue; } @@ -667,7 +668,8 @@ set_source_sink_config (struct zero_dev *dev, gfp_t gfp_flags) result = usb_ep_enable (ep, d); if (result == 0) { ep->driver_data = dev; - if (source_sink_start_ep (ep, gfp_flags) != 0) { + if (source_sink_start_ep(ep, gfp_flags) + != NULL) { dev->out_ep = ep; continue; } diff --git a/trunk/drivers/usb/serial/cp2101.c b/trunk/drivers/usb/serial/cp2101.c index e831cb7f64fd..33f6ee50b8d3 100644 --- a/trunk/drivers/usb/serial/cp2101.c +++ b/trunk/drivers/usb/serial/cp2101.c @@ -356,7 +356,7 @@ static void cp2101_get_termios (struct usb_serial_port *port) dbg("%s - port %d", __FUNCTION__, port->number); - if ((!port->tty) || (!port->tty->termios)) { + if (!port->tty || !port->tty->termios) { dbg("%s - no tty structures", __FUNCTION__); return; } @@ -526,50 +526,35 @@ static void cp2101_set_termios (struct usb_serial_port *port, return; } cflag = port->tty->termios->c_cflag; - - /* Check that they really want us to change something */ - if (old_termios) { - if ((cflag == old_termios->c_cflag) && - (RELEVANT_IFLAG(port->tty->termios->c_iflag) - == RELEVANT_IFLAG(old_termios->c_iflag))) { - dbg("%s - nothing to change...", __FUNCTION__); - return; - } - - old_cflag = old_termios->c_cflag; - } + old_cflag = old_termios->c_cflag; + baud = tty_get_baud_rate(port->tty); /* If the baud rate is to be updated*/ - if ((cflag & CBAUD) != (old_cflag & CBAUD)) { - switch (cflag & CBAUD) { - /* - * The baud rates which are commented out below - * appear to be supported by the device - * but are non-standard - */ - case B0: baud = 0; break; - case B600: baud = 600; break; - case B1200: baud = 1200; break; - case B1800: baud = 1800; break; - case B2400: baud = 2400; break; - case B4800: baud = 4800; break; - /*case B7200: baud = 7200; break;*/ - case B9600: baud = 9600; break; - /*ase B14400: baud = 14400; break;*/ - case B19200: baud = 19200; break; - /*case B28800: baud = 28800; break;*/ - case B38400: baud = 38400; break; - /*case B55854: baud = 55054; break;*/ - case B57600: baud = 57600; break; - case B115200: baud = 115200; break; - /*case B127117: baud = 127117; break;*/ - case B230400: baud = 230400; break; - case B460800: baud = 460800; break; - case B921600: baud = 921600; break; - /*case B3686400: baud = 3686400; break;*/ + if (baud != tty_termios_baud_rate(old_termios)) { + switch (baud) { + case 0: + case 600: + case 1200: + case 1800: + case 2400: + case 4800: + case 7200: + case 9600: + case 14400: + case 19200: + case 28800: + case 38400: + case 55854: + case 57600: + case 115200: + case 127117: + case 230400: + case 460800: + case 921600: + case 3686400: + break; default: - dev_err(&port->dev, "cp2101 driver does not " - "support the baudrate requested\n"); + baud = 9600; break; } diff --git a/trunk/drivers/usb/serial/digi_acceleport.c b/trunk/drivers/usb/serial/digi_acceleport.c index 976f54ec26e6..dab2e66d111d 100644 --- a/trunk/drivers/usb/serial/digi_acceleport.c +++ b/trunk/drivers/usb/serial/digi_acceleport.c @@ -433,38 +433,38 @@ struct digi_port { /* Local Function Declarations */ -static void digi_wakeup_write( struct usb_serial_port *port ); +static void digi_wakeup_write(struct usb_serial_port *port); static void digi_wakeup_write_lock(struct work_struct *work); -static int digi_write_oob_command( struct usb_serial_port *port, - unsigned char *buf, int count, int interruptible ); -static int digi_write_inb_command( struct usb_serial_port *port, - unsigned char *buf, int count, unsigned long timeout ); -static int digi_set_modem_signals( struct usb_serial_port *port, - unsigned int modem_signals, int interruptible ); -static int digi_transmit_idle( struct usb_serial_port *port, - unsigned long timeout ); +static int digi_write_oob_command(struct usb_serial_port *port, + unsigned char *buf, int count, int interruptible); +static int digi_write_inb_command(struct usb_serial_port *port, + unsigned char *buf, int count, unsigned long timeout); +static int digi_set_modem_signals(struct usb_serial_port *port, + unsigned int modem_signals, int interruptible); +static int digi_transmit_idle(struct usb_serial_port *port, + unsigned long timeout); static void digi_rx_throttle (struct usb_serial_port *port); static void digi_rx_unthrottle (struct usb_serial_port *port); -static void digi_set_termios( struct usb_serial_port *port, - struct ktermios *old_termios ); -static void digi_break_ctl( struct usb_serial_port *port, int break_state ); -static int digi_ioctl( struct usb_serial_port *port, struct file *file, - unsigned int cmd, unsigned long arg ); -static int digi_tiocmget( struct usb_serial_port *port, struct file *file ); -static int digi_tiocmset( struct usb_serial_port *port, struct file *file, - unsigned int set, unsigned int clear ); -static int digi_write( struct usb_serial_port *port, const unsigned char *buf, int count ); -static void digi_write_bulk_callback( struct urb *urb ); -static int digi_write_room( struct usb_serial_port *port ); -static int digi_chars_in_buffer( struct usb_serial_port *port ); -static int digi_open( struct usb_serial_port *port, struct file *filp ); -static void digi_close( struct usb_serial_port *port, struct file *filp ); -static int digi_startup_device( struct usb_serial *serial ); -static int digi_startup( struct usb_serial *serial ); -static void digi_shutdown( struct usb_serial *serial ); -static void digi_read_bulk_callback( struct urb *urb ); -static int digi_read_inb_callback( struct urb *urb ); -static int digi_read_oob_callback( struct urb *urb ); +static void digi_set_termios(struct usb_serial_port *port, + struct ktermios *old_termios); +static void digi_break_ctl(struct usb_serial_port *port, int break_state); +static int digi_ioctl(struct usb_serial_port *port, struct file *file, + unsigned int cmd, unsigned long arg); +static int digi_tiocmget(struct usb_serial_port *port, struct file *file); +static int digi_tiocmset(struct usb_serial_port *port, struct file *file, + unsigned int set, unsigned int clear); +static int digi_write(struct usb_serial_port *port, const unsigned char *buf, int count); +static void digi_write_bulk_callback(struct urb *urb); +static int digi_write_room(struct usb_serial_port *port); +static int digi_chars_in_buffer(struct usb_serial_port *port); +static int digi_open(struct usb_serial_port *port, struct file *filp); +static void digi_close(struct usb_serial_port *port, struct file *filp); +static int digi_startup_device(struct usb_serial *serial); +static int digi_startup(struct usb_serial *serial); +static void digi_shutdown(struct usb_serial *serial); +static void digi_read_bulk_callback(struct urb *urb); +static int digi_read_inb_callback(struct urb *urb); +static int digi_read_oob_callback(struct urb *urb); /* Statics */ @@ -576,9 +576,9 @@ static struct usb_serial_driver digi_acceleport_4_device = { * with the equivalent code. */ -static inline long cond_wait_interruptible_timeout_irqrestore( +static long cond_wait_interruptible_timeout_irqrestore( wait_queue_head_t *q, long timeout, - spinlock_t *lock, unsigned long flags ) + spinlock_t *lock, unsigned long flags) { DEFINE_WAIT(wait); @@ -600,18 +600,16 @@ static inline long cond_wait_interruptible_timeout_irqrestore( static void digi_wakeup_write_lock(struct work_struct *work) { - struct digi_port *priv = - container_of(work, struct digi_port, dp_wakeup_work); + struct digi_port *priv = container_of(work, struct digi_port, dp_wakeup_work); struct usb_serial_port *port = priv->dp_port; unsigned long flags; - - spin_lock_irqsave( &priv->dp_port_lock, flags ); - digi_wakeup_write( port ); - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); + digi_wakeup_write(port); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); } -static void digi_wakeup_write( struct usb_serial_port *port ) +static void digi_wakeup_write(struct usb_serial_port *port) { tty_wakeup(port->tty); } @@ -628,8 +626,8 @@ static void digi_wakeup_write( struct usb_serial_port *port ) * returned by usb_submit_urb. */ -static int digi_write_oob_command( struct usb_serial_port *port, - unsigned char *buf, int count, int interruptible ) +static int digi_write_oob_command(struct usb_serial_port *port, + unsigned char *buf, int count, int interruptible) { int ret = 0; @@ -638,49 +636,37 @@ static int digi_write_oob_command( struct usb_serial_port *port, struct digi_port *oob_priv = usb_get_serial_port_data(oob_port); unsigned long flags = 0; + dbg("digi_write_oob_command: TOP: port=%d, count=%d", oob_priv->dp_port_num, count); -dbg( "digi_write_oob_command: TOP: port=%d, count=%d", oob_priv->dp_port_num, count ); - - spin_lock_irqsave( &oob_priv->dp_port_lock, flags ); - - while( count > 0 ) { - - while( oob_port->write_urb->status == -EINPROGRESS - || oob_priv->dp_write_urb_in_use ) { + spin_lock_irqsave(&oob_priv->dp_port_lock, flags); + while(count > 0) { + while(oob_port->write_urb->status == -EINPROGRESS + || oob_priv->dp_write_urb_in_use) { cond_wait_interruptible_timeout_irqrestore( &oob_port->write_wait, DIGI_RETRY_TIMEOUT, - &oob_priv->dp_port_lock, flags ); - if( interruptible && signal_pending(current) ) { - return( -EINTR ); - } - spin_lock_irqsave( &oob_priv->dp_port_lock, flags ); + &oob_priv->dp_port_lock, flags); + if (interruptible && signal_pending(current)) + return -EINTR; + spin_lock_irqsave(&oob_priv->dp_port_lock, flags); } /* len must be a multiple of 4, so commands are not split */ - len = min(count, oob_port->bulk_out_size ); - if( len > 4 ) + len = min(count, oob_port->bulk_out_size); + if (len > 4) len &= ~3; - - memcpy( oob_port->write_urb->transfer_buffer, buf, len ); + memcpy(oob_port->write_urb->transfer_buffer, buf, len); oob_port->write_urb->transfer_buffer_length = len; oob_port->write_urb->dev = port->serial->dev; - - if( (ret=usb_submit_urb(oob_port->write_urb, GFP_ATOMIC)) == 0 ) { + if ((ret = usb_submit_urb(oob_port->write_urb, GFP_ATOMIC)) == 0) { oob_priv->dp_write_urb_in_use = 1; count -= len; buf += len; } - - } - - spin_unlock_irqrestore( &oob_priv->dp_port_lock, flags ); - - if( ret ) { - err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__, - ret ); } - - return( ret ); + spin_unlock_irqrestore(&oob_priv->dp_port_lock, flags); + if (ret) + err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__, ret); + return ret; } @@ -697,63 +683,58 @@ dbg( "digi_write_oob_command: TOP: port=%d, count=%d", oob_priv->dp_port_num, co * error returned by digi_write. */ -static int digi_write_inb_command( struct usb_serial_port *port, - unsigned char *buf, int count, unsigned long timeout ) +static int digi_write_inb_command(struct usb_serial_port *port, + unsigned char *buf, int count, unsigned long timeout) { - int ret = 0; int len; struct digi_port *priv = usb_get_serial_port_data(port); unsigned char *data = port->write_urb->transfer_buffer; unsigned long flags = 0; + dbg("digi_write_inb_command: TOP: port=%d, count=%d", + priv->dp_port_num, count); -dbg( "digi_write_inb_command: TOP: port=%d, count=%d", priv->dp_port_num, -count ); - - if( timeout ) + if (timeout) timeout += jiffies; else timeout = ULONG_MAX; - spin_lock_irqsave( &priv->dp_port_lock, flags ); - - while( count > 0 && ret == 0 ) { - - while( (port->write_urb->status == -EINPROGRESS - || priv->dp_write_urb_in_use) && time_before(jiffies, timeout)) { + spin_lock_irqsave(&priv->dp_port_lock, flags); + while(count > 0 && ret == 0) { + while((port->write_urb->status == -EINPROGRESS + || priv->dp_write_urb_in_use) && time_before(jiffies, timeout)) { cond_wait_interruptible_timeout_irqrestore( &port->write_wait, DIGI_RETRY_TIMEOUT, - &priv->dp_port_lock, flags ); - if( signal_pending(current) ) { - return( -EINTR ); - } - spin_lock_irqsave( &priv->dp_port_lock, flags ); + &priv->dp_port_lock, flags); + if (signal_pending(current)) + return -EINTR; + spin_lock_irqsave(&priv->dp_port_lock, flags); } /* len must be a multiple of 4 and small enough to */ /* guarantee the write will send buffered data first, */ /* so commands are in order with data and not split */ - len = min(count, port->bulk_out_size-2-priv->dp_out_buf_len ); - if( len > 4 ) + len = min(count, port->bulk_out_size-2-priv->dp_out_buf_len); + if (len > 4) len &= ~3; /* write any buffered data first */ - if( priv->dp_out_buf_len > 0 ) { + if (priv->dp_out_buf_len > 0) { data[0] = DIGI_CMD_SEND_DATA; data[1] = priv->dp_out_buf_len; - memcpy( data+2, priv->dp_out_buf, - priv->dp_out_buf_len ); - memcpy( data+2+priv->dp_out_buf_len, buf, len ); + memcpy(data + 2, priv->dp_out_buf, + priv->dp_out_buf_len); + memcpy(data + 2 + priv->dp_out_buf_len, buf, len); port->write_urb->transfer_buffer_length - = priv->dp_out_buf_len+2+len; + = priv->dp_out_buf_len + 2 + len; } else { - memcpy( data, buf, len ); + memcpy(data, buf, len); port->write_urb->transfer_buffer_length = len; } port->write_urb->dev = port->serial->dev; - if( (ret=usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0 ) { + if ((ret = usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0) { priv->dp_write_urb_in_use = 1; priv->dp_out_buf_len = 0; count -= len; @@ -761,16 +742,12 @@ count ); } } + spin_unlock_irqrestore(&priv->dp_port_lock, flags); - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - - if( ret ) { - err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__, - ret, priv->dp_port_num ); - } - - return( ret ); - + if (ret) + err("%s: usb_submit_urb failed, ret=%d, port=%d", + __FUNCTION__, ret, priv->dp_port_num); + return ret; } @@ -784,8 +761,8 @@ count ); * returned by usb_submit_urb. */ -static int digi_set_modem_signals( struct usb_serial_port *port, - unsigned int modem_signals, int interruptible ) +static int digi_set_modem_signals(struct usb_serial_port *port, + unsigned int modem_signals, int interruptible) { int ret; @@ -796,60 +773,47 @@ static int digi_set_modem_signals( struct usb_serial_port *port, unsigned long flags = 0; -dbg( "digi_set_modem_signals: TOP: port=%d, modem_signals=0x%x", -port_priv->dp_port_num, modem_signals ); + dbg("digi_set_modem_signals: TOP: port=%d, modem_signals=0x%x", + port_priv->dp_port_num, modem_signals); - spin_lock_irqsave( &oob_priv->dp_port_lock, flags ); - spin_lock( &port_priv->dp_port_lock ); + spin_lock_irqsave(&oob_priv->dp_port_lock, flags); + spin_lock(&port_priv->dp_port_lock); - while( oob_port->write_urb->status == -EINPROGRESS - || oob_priv->dp_write_urb_in_use ) { - spin_unlock( &port_priv->dp_port_lock ); + while(oob_port->write_urb->status == -EINPROGRESS || oob_priv->dp_write_urb_in_use) { + spin_unlock(&port_priv->dp_port_lock); cond_wait_interruptible_timeout_irqrestore( &oob_port->write_wait, DIGI_RETRY_TIMEOUT, - &oob_priv->dp_port_lock, flags ); - if( interruptible && signal_pending(current) ) { - return( -EINTR ); - } - spin_lock_irqsave( &oob_priv->dp_port_lock, flags ); - spin_lock( &port_priv->dp_port_lock ); + &oob_priv->dp_port_lock, flags); + if (interruptible && signal_pending(current)) + return -EINTR; + spin_lock_irqsave(&oob_priv->dp_port_lock, flags); + spin_lock(&port_priv->dp_port_lock); } - data[0] = DIGI_CMD_SET_DTR_SIGNAL; data[1] = port_priv->dp_port_num; - data[2] = (modem_signals&TIOCM_DTR) ? - DIGI_DTR_ACTIVE : DIGI_DTR_INACTIVE; + data[2] = (modem_signals&TIOCM_DTR) ? DIGI_DTR_ACTIVE : DIGI_DTR_INACTIVE; data[3] = 0; - data[4] = DIGI_CMD_SET_RTS_SIGNAL; data[5] = port_priv->dp_port_num; - data[6] = (modem_signals&TIOCM_RTS) ? - DIGI_RTS_ACTIVE : DIGI_RTS_INACTIVE; + data[6] = (modem_signals&TIOCM_RTS) ? DIGI_RTS_ACTIVE : DIGI_RTS_INACTIVE; data[7] = 0; oob_port->write_urb->transfer_buffer_length = 8; oob_port->write_urb->dev = port->serial->dev; - if( (ret=usb_submit_urb(oob_port->write_urb, GFP_ATOMIC)) == 0 ) { + if ((ret = usb_submit_urb(oob_port->write_urb, GFP_ATOMIC)) == 0) { oob_priv->dp_write_urb_in_use = 1; port_priv->dp_modem_signals = (port_priv->dp_modem_signals&~(TIOCM_DTR|TIOCM_RTS)) | (modem_signals&(TIOCM_DTR|TIOCM_RTS)); } - - spin_unlock( &port_priv->dp_port_lock ); - spin_unlock_irqrestore( &oob_priv->dp_port_lock, flags ); - - if( ret ) { - err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__, - ret ); - } - - return( ret ); - + spin_unlock(&port_priv->dp_port_lock); + spin_unlock_irqrestore(&oob_priv->dp_port_lock, flags); + if (ret) + err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__, ret); + return ret; } - /* * Digi Transmit Idle * @@ -862,203 +826,182 @@ port_priv->dp_port_num, modem_signals ); * port at a time, so its ok. */ -static int digi_transmit_idle( struct usb_serial_port *port, - unsigned long timeout ) +static int digi_transmit_idle(struct usb_serial_port *port, + unsigned long timeout) { - int ret; unsigned char buf[2]; struct digi_port *priv = usb_get_serial_port_data(port); unsigned long flags = 0; - - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); priv->dp_transmit_idle = 0; - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); buf[0] = DIGI_CMD_TRANSMIT_IDLE; buf[1] = 0; timeout += jiffies; - if( (ret=digi_write_inb_command( port, buf, 2, timeout-jiffies )) != 0 ) - return( ret ); + if ((ret = digi_write_inb_command(port, buf, 2, timeout - jiffies)) != 0) + return ret; - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); - while( time_before(jiffies, timeout) && !priv->dp_transmit_idle ) { + while(time_before(jiffies, timeout) && !priv->dp_transmit_idle) { cond_wait_interruptible_timeout_irqrestore( &priv->dp_transmit_idle_wait, DIGI_RETRY_TIMEOUT, - &priv->dp_port_lock, flags ); - if( signal_pending(current) ) { - return( -EINTR ); - } - spin_lock_irqsave( &priv->dp_port_lock, flags ); + &priv->dp_port_lock, flags); + if (signal_pending(current)) + return -EINTR; + spin_lock_irqsave(&priv->dp_port_lock, flags); } - priv->dp_transmit_idle = 0; - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - - return( 0 ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + return 0; } -static void digi_rx_throttle( struct usb_serial_port *port ) +static void digi_rx_throttle(struct usb_serial_port *port) { - unsigned long flags; struct digi_port *priv = usb_get_serial_port_data(port); -dbg( "digi_rx_throttle: TOP: port=%d", priv->dp_port_num ); + dbg("digi_rx_throttle: TOP: port=%d", priv->dp_port_num); /* stop receiving characters by not resubmitting the read urb */ - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); priv->dp_throttled = 1; priv->dp_throttle_restart = 0; - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - + spin_unlock_irqrestore(&priv->dp_port_lock, flags); } -static void digi_rx_unthrottle( struct usb_serial_port *port ) +static void digi_rx_unthrottle(struct usb_serial_port *port) { - int ret = 0; unsigned long flags; struct digi_port *priv = usb_get_serial_port_data(port); -dbg( "digi_rx_unthrottle: TOP: port=%d", priv->dp_port_num ); + dbg("digi_rx_unthrottle: TOP: port=%d", priv->dp_port_num); - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); /* turn throttle off */ priv->dp_throttled = 0; priv->dp_throttle_restart = 0; /* restart read chain */ - if( priv->dp_throttle_restart ) { + if (priv->dp_throttle_restart) { port->read_urb->dev = port->serial->dev; - ret = usb_submit_urb( port->read_urb, GFP_ATOMIC ); + ret = usb_submit_urb(port->read_urb, GFP_ATOMIC); } - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - - if( ret ) { - err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__, - ret, priv->dp_port_num ); - } + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + if (ret) + err("%s: usb_submit_urb failed, ret=%d, port=%d", + __FUNCTION__, ret, priv->dp_port_num); } -static void digi_set_termios( struct usb_serial_port *port, - struct ktermios *old_termios ) +static void digi_set_termios(struct usb_serial_port *port, + struct ktermios *old_termios) { struct digi_port *priv = usb_get_serial_port_data(port); - unsigned int iflag = port->tty->termios->c_iflag; - unsigned int cflag = port->tty->termios->c_cflag; + struct tty_struct *tty = port->tty; + unsigned int iflag = tty->termios->c_iflag; + unsigned int cflag = tty->termios->c_cflag; unsigned int old_iflag = old_termios->c_iflag; unsigned int old_cflag = old_termios->c_cflag; unsigned char buf[32]; unsigned int modem_signals; int arg,ret; int i = 0; + speed_t baud; - -dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, old_cflag=0x%x", priv->dp_port_num, iflag, old_iflag, cflag, old_cflag ); + dbg("digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, old_cflag=0x%x", priv->dp_port_num, iflag, old_iflag, cflag, old_cflag); /* set baud rate */ - if( (cflag&CBAUD) != (old_cflag&CBAUD) ) { - + if ((baud = tty_get_baud_rate(tty)) != tty_termios_baud_rate(old_termios)) { arg = -1; /* reassert DTR and (maybe) RTS on transition from B0 */ - if( (old_cflag&CBAUD) == B0 ) { + if ((old_cflag&CBAUD) == B0) { /* don't set RTS if using hardware flow control */ /* and throttling input */ modem_signals = TIOCM_DTR; - if( !(port->tty->termios->c_cflag & CRTSCTS) || - !test_bit(TTY_THROTTLED, &port->tty->flags) ) { + if (!(tty->termios->c_cflag & CRTSCTS) || + !test_bit(TTY_THROTTLED, &tty->flags)) modem_signals |= TIOCM_RTS; - } - digi_set_modem_signals( port, modem_signals, 1 ); + digi_set_modem_signals(port, modem_signals, 1); } - - switch( (cflag&CBAUD) ) { + switch (baud) { /* drop DTR and RTS on transition to B0 */ - case B0: digi_set_modem_signals( port, 0, 1 ); break; - case B50: arg = DIGI_BAUD_50; break; - case B75: arg = DIGI_BAUD_75; break; - case B110: arg = DIGI_BAUD_110; break; - case B150: arg = DIGI_BAUD_150; break; - case B200: arg = DIGI_BAUD_200; break; - case B300: arg = DIGI_BAUD_300; break; - case B600: arg = DIGI_BAUD_600; break; - case B1200: arg = DIGI_BAUD_1200; break; - case B1800: arg = DIGI_BAUD_1800; break; - case B2400: arg = DIGI_BAUD_2400; break; - case B4800: arg = DIGI_BAUD_4800; break; - case B9600: arg = DIGI_BAUD_9600; break; - case B19200: arg = DIGI_BAUD_19200; break; - case B38400: arg = DIGI_BAUD_38400; break; - case B57600: arg = DIGI_BAUD_57600; break; - case B115200: arg = DIGI_BAUD_115200; break; - case B230400: arg = DIGI_BAUD_230400; break; - case B460800: arg = DIGI_BAUD_460800; break; - default: - dbg( "digi_set_termios: can't handle baud rate 0x%x", - (cflag&CBAUD) ); - break; + case 0: digi_set_modem_signals(port, 0, 1); break; + case 50: arg = DIGI_BAUD_50; break; + case 75: arg = DIGI_BAUD_75; break; + case 110: arg = DIGI_BAUD_110; break; + case 150: arg = DIGI_BAUD_150; break; + case 200: arg = DIGI_BAUD_200; break; + case 300: arg = DIGI_BAUD_300; break; + case 600: arg = DIGI_BAUD_600; break; + case 1200: arg = DIGI_BAUD_1200; break; + case 1800: arg = DIGI_BAUD_1800; break; + case 2400: arg = DIGI_BAUD_2400; break; + case 4800: arg = DIGI_BAUD_4800; break; + case 9600: arg = DIGI_BAUD_9600; break; + case 19200: arg = DIGI_BAUD_19200; break; + case 38400: arg = DIGI_BAUD_38400; break; + case 57600: arg = DIGI_BAUD_57600; break; + case 115200: arg = DIGI_BAUD_115200; break; + case 230400: arg = DIGI_BAUD_230400; break; + case 460800: arg = DIGI_BAUD_460800; break; + default: + arg = DIGI_BAUD_9600; + baud = 9600; + break; } - - if( arg != -1 ) { + if (arg != -1) { buf[i++] = DIGI_CMD_SET_BAUD_RATE; buf[i++] = priv->dp_port_num; buf[i++] = arg; buf[i++] = 0; } - } - /* set parity */ - if( (cflag&(PARENB|PARODD)) != (old_cflag&(PARENB|PARODD)) ) { - - if( (cflag&PARENB) ) { - if( (cflag&PARODD) ) + if ((cflag&(PARENB|PARODD)) != (old_cflag&(PARENB|PARODD))) { + if (cflag&PARENB) { + if (cflag&PARODD) arg = DIGI_PARITY_ODD; else arg = DIGI_PARITY_EVEN; } else { arg = DIGI_PARITY_NONE; } - buf[i++] = DIGI_CMD_SET_PARITY; buf[i++] = priv->dp_port_num; buf[i++] = arg; buf[i++] = 0; - } - /* set word size */ - if( (cflag&CSIZE) != (old_cflag&CSIZE) ) { - + if ((cflag&CSIZE) != (old_cflag&CSIZE)) { arg = -1; - - switch( (cflag&CSIZE) ) { + switch (cflag&CSIZE) { case CS5: arg = DIGI_WORD_SIZE_5; break; case CS6: arg = DIGI_WORD_SIZE_6; break; case CS7: arg = DIGI_WORD_SIZE_7; break; case CS8: arg = DIGI_WORD_SIZE_8; break; default: - dbg( "digi_set_termios: can't handle word size %d", - (cflag&CSIZE) ); + dbg("digi_set_termios: can't handle word size %d", + (cflag&CSIZE)); break; } - if( arg != -1 ) { + if (arg != -1) { buf[i++] = DIGI_CMD_SET_WORD_SIZE; buf[i++] = priv->dp_port_num; buf[i++] = arg; @@ -1068,9 +1011,9 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol } /* set stop bits */ - if( (cflag&CSTOPB) != (old_cflag&CSTOPB) ) { + if ((cflag&CSTOPB) != (old_cflag&CSTOPB)) { - if( (cflag&CSTOPB) ) + if ((cflag&CSTOPB)) arg = DIGI_STOP_BITS_2; else arg = DIGI_STOP_BITS_1; @@ -1083,18 +1026,15 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol } /* set input flow control */ - if( (iflag&IXOFF) != (old_iflag&IXOFF) - || (cflag&CRTSCTS) != (old_cflag&CRTSCTS) ) { - + if ((iflag&IXOFF) != (old_iflag&IXOFF) + || (cflag&CRTSCTS) != (old_cflag&CRTSCTS)) { arg = 0; - - if( (iflag&IXOFF) ) + if (iflag&IXOFF) arg |= DIGI_INPUT_FLOW_CONTROL_XON_XOFF; else arg &= ~DIGI_INPUT_FLOW_CONTROL_XON_XOFF; - if( (cflag&CRTSCTS) ) { - + if (cflag&CRTSCTS) { arg |= DIGI_INPUT_FLOW_CONTROL_RTS; /* On USB-4 it is necessary to assert RTS prior */ @@ -1107,43 +1047,37 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol } else { arg &= ~DIGI_INPUT_FLOW_CONTROL_RTS; } - buf[i++] = DIGI_CMD_SET_INPUT_FLOW_CONTROL; buf[i++] = priv->dp_port_num; buf[i++] = arg; buf[i++] = 0; - } /* set output flow control */ - if( (iflag&IXON) != (old_iflag&IXON) - || (cflag&CRTSCTS) != (old_cflag&CRTSCTS) ) { - + if ((iflag&IXON) != (old_iflag&IXON) + || (cflag&CRTSCTS) != (old_cflag&CRTSCTS)) { arg = 0; - - if( (iflag&IXON) ) + if (iflag&IXON) arg |= DIGI_OUTPUT_FLOW_CONTROL_XON_XOFF; else arg &= ~DIGI_OUTPUT_FLOW_CONTROL_XON_XOFF; - if( (cflag&CRTSCTS) ) { + if (cflag&CRTSCTS) { arg |= DIGI_OUTPUT_FLOW_CONTROL_CTS; } else { arg &= ~DIGI_OUTPUT_FLOW_CONTROL_CTS; - port->tty->hw_stopped = 0; + tty->hw_stopped = 0; } buf[i++] = DIGI_CMD_SET_OUTPUT_FLOW_CONTROL; buf[i++] = priv->dp_port_num; buf[i++] = arg; buf[i++] = 0; - } /* set receive enable/disable */ - if( (cflag&CREAD) != (old_cflag&CREAD) ) { - - if( (cflag&CREAD) ) + if ((cflag&CREAD) != (old_cflag&CREAD)) { + if (cflag&CREAD) arg = DIGI_ENABLE; else arg = DIGI_DISABLE; @@ -1152,32 +1086,26 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol buf[i++] = priv->dp_port_num; buf[i++] = arg; buf[i++] = 0; - } - - if( (ret=digi_write_oob_command( port, buf, i, 1 )) != 0 ) - dbg( "digi_set_termios: write oob failed, ret=%d", ret ); + if ((ret = digi_write_oob_command(port, buf, i, 1)) != 0) + dbg("digi_set_termios: write oob failed, ret=%d", ret); } -static void digi_break_ctl( struct usb_serial_port *port, int break_state ) +static void digi_break_ctl(struct usb_serial_port *port, int break_state) { - unsigned char buf[4]; - buf[0] = DIGI_CMD_BREAK_CONTROL; buf[1] = 2; /* length */ buf[2] = break_state ? 1 : 0; buf[3] = 0; /* pad */ - - digi_write_inb_command( port, buf, 4, 0 ); - + digi_write_inb_command(port, buf, 4, 0); } -static int digi_tiocmget( struct usb_serial_port *port, struct file *file ) +static int digi_tiocmget(struct usb_serial_port *port, struct file *file) { struct digi_port *priv = usb_get_serial_port_data(port); unsigned int val; @@ -1185,15 +1113,15 @@ static int digi_tiocmget( struct usb_serial_port *port, struct file *file ) dbg("%s: TOP: port=%d", __FUNCTION__, priv->dp_port_num); - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); val = priv->dp_modem_signals; - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); return val; } -static int digi_tiocmset( struct usb_serial_port *port, struct file *file, - unsigned int set, unsigned int clear ) +static int digi_tiocmset(struct usb_serial_port *port, struct file *file, + unsigned int set, unsigned int clear) { struct digi_port *priv = usb_get_serial_port_data(port); unsigned int val; @@ -1201,41 +1129,34 @@ static int digi_tiocmset( struct usb_serial_port *port, struct file *file, dbg("%s: TOP: port=%d", __FUNCTION__, priv->dp_port_num); - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); val = (priv->dp_modem_signals & ~clear) | set; - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - return digi_set_modem_signals( port, val, 1 ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + return digi_set_modem_signals(port, val, 1); } -static int digi_ioctl( struct usb_serial_port *port, struct file *file, - unsigned int cmd, unsigned long arg ) +static int digi_ioctl(struct usb_serial_port *port, struct file *file, + unsigned int cmd, unsigned long arg) { - struct digi_port *priv = usb_get_serial_port_data(port); - -dbg( "digi_ioctl: TOP: port=%d, cmd=0x%x", priv->dp_port_num, cmd ); + dbg("digi_ioctl: TOP: port=%d, cmd=0x%x", priv->dp_port_num, cmd); switch (cmd) { - case TIOCMIWAIT: /* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/ /* TODO */ - return( 0 ); - + return 0; case TIOCGICOUNT: /* return count of modemline transitions */ /* TODO */ return 0; - } - - return( -ENOIOCTLCMD ); + return -ENOIOCTLCMD; } - -static int digi_write( struct usb_serial_port *port, const unsigned char *buf, int count ) +static int digi_write(struct usb_serial_port *port, const unsigned char *buf, int count) { int ret,data_len,new_len; @@ -1243,35 +1164,29 @@ static int digi_write( struct usb_serial_port *port, const unsigned char *buf, i unsigned char *data = port->write_urb->transfer_buffer; unsigned long flags = 0; - -dbg( "digi_write: TOP: port=%d, count=%d, in_interrupt=%ld", -priv->dp_port_num, count, in_interrupt() ); + dbg("digi_write: TOP: port=%d, count=%d, in_interrupt=%ld", + priv->dp_port_num, count, in_interrupt()); /* copy user data (which can sleep) before getting spin lock */ - count = min( count, port->bulk_out_size-2 ); - count = min( 64, count); + count = min(count, port->bulk_out_size-2); + count = min(64, count); /* be sure only one write proceeds at a time */ /* there are races on the port private buffer */ /* and races to check write_urb->status */ - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); /* wait for urb status clear to submit another urb */ - if( port->write_urb->status == -EINPROGRESS - || priv->dp_write_urb_in_use ) { - + if (port->write_urb->status == -EINPROGRESS || priv->dp_write_urb_in_use) { /* buffer data if count is 1 (probably put_char) if possible */ - if( count == 1 && priv->dp_out_buf_len < DIGI_OUT_BUF_SIZE ) { + if (count == 1 && priv->dp_out_buf_len < DIGI_OUT_BUF_SIZE) { priv->dp_out_buf[priv->dp_out_buf_len++] = *buf; new_len = 1; } else { new_len = 0; } - - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - - return( new_len ); - + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + return new_len; } /* allow space for any buffered data and for new data, up to */ @@ -1279,9 +1194,9 @@ priv->dp_port_num, count, in_interrupt() ); new_len = min(count, port->bulk_out_size-2-priv->dp_out_buf_len); data_len = new_len + priv->dp_out_buf_len; - if( data_len == 0 ) { - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - return( 0 ); + if (data_len == 0) { + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + return 0; } port->write_urb->transfer_buffer_length = data_len+2; @@ -1291,32 +1206,29 @@ priv->dp_port_num, count, in_interrupt() ); *data++ = data_len; /* copy in buffered data first */ - memcpy( data, priv->dp_out_buf, priv->dp_out_buf_len ); + memcpy(data, priv->dp_out_buf, priv->dp_out_buf_len); data += priv->dp_out_buf_len; /* copy in new data */ - memcpy( data, buf, new_len ); + memcpy(data, buf, new_len); - if( (ret=usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0 ) { + if ((ret = usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0) { priv->dp_write_urb_in_use = 1; ret = new_len; priv->dp_out_buf_len = 0; } /* return length of new data written, or error */ - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - if( ret < 0 ) { - err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__, - ret, priv->dp_port_num ); - } - -dbg( "digi_write: returning %d", ret ); - return( ret ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + if (ret < 0) + err("%s: usb_submit_urb failed, ret=%d, port=%d", + __FUNCTION__, ret, priv->dp_port_num); + dbg("digi_write: returning %d", ret); + return ret; } - -static void digi_write_bulk_callback( struct urb *urb ) +static void digi_write_bulk_callback(struct urb *urb) { struct usb_serial_port *port = (struct usb_serial_port *)urb->context; @@ -1326,153 +1238,136 @@ static void digi_write_bulk_callback( struct urb *urb ) int ret = 0; int status = urb->status; - - dbg("digi_write_bulk_callback: TOP, urb status=%d", status); + dbg("digi_write_bulk_callback: TOP, urb->status=%d", status); /* port and serial sanity check */ - if( port == NULL || (priv=usb_get_serial_port_data(port)) == NULL ) { + if (port == NULL || (priv=usb_get_serial_port_data(port)) == NULL) { err("%s: port or port->private is NULL, status=%d", __FUNCTION__, status); return; } serial = port->serial; - if( serial == NULL || (serial_priv=usb_get_serial_data(serial)) == NULL ) { + if (serial == NULL || (serial_priv=usb_get_serial_data(serial)) == NULL) { err("%s: serial or serial->private is NULL, status=%d", __FUNCTION__, status); return; } /* handle oob callback */ - if( priv->dp_port_num == serial_priv->ds_oob_port_num ) { - dbg( "digi_write_bulk_callback: oob callback" ); - spin_lock( &priv->dp_port_lock ); + if (priv->dp_port_num == serial_priv->ds_oob_port_num) { + dbg("digi_write_bulk_callback: oob callback"); + spin_lock(&priv->dp_port_lock); priv->dp_write_urb_in_use = 0; - wake_up_interruptible( &port->write_wait ); - spin_unlock( &priv->dp_port_lock ); + wake_up_interruptible(&port->write_wait); + spin_unlock(&priv->dp_port_lock); return; } /* try to send any buffered data on this port, if it is open */ - spin_lock( &priv->dp_port_lock ); + spin_lock(&priv->dp_port_lock); priv->dp_write_urb_in_use = 0; - if( port->open_count && port->write_urb->status != -EINPROGRESS - && priv->dp_out_buf_len > 0 ) { - + if (port->open_count && port->write_urb->status != -EINPROGRESS + && priv->dp_out_buf_len > 0) { *((unsigned char *)(port->write_urb->transfer_buffer)) = (unsigned char)DIGI_CMD_SEND_DATA; *((unsigned char *)(port->write_urb->transfer_buffer)+1) = (unsigned char)priv->dp_out_buf_len; - - port->write_urb->transfer_buffer_length - = priv->dp_out_buf_len+2; + port->write_urb->transfer_buffer_length = priv->dp_out_buf_len+2; port->write_urb->dev = serial->dev; - - memcpy( port->write_urb->transfer_buffer+2, priv->dp_out_buf, - priv->dp_out_buf_len ); - - if( (ret=usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0 ) { + memcpy(port->write_urb->transfer_buffer+2, priv->dp_out_buf, + priv->dp_out_buf_len); + if ((ret = usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0) { priv->dp_write_urb_in_use = 1; priv->dp_out_buf_len = 0; } - } - /* wake up processes sleeping on writes immediately */ - digi_wakeup_write( port ); - + digi_wakeup_write(port); /* also queue up a wakeup at scheduler time, in case we */ /* lost the race in write_chan(). */ schedule_work(&priv->dp_wakeup_work); - spin_unlock( &priv->dp_port_lock ); - - if( ret ) { - err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__, - ret, priv->dp_port_num ); - } - + spin_unlock(&priv->dp_port_lock); + if (ret) + err("%s: usb_submit_urb failed, ret=%d, port=%d", + __FUNCTION__, ret, priv->dp_port_num); } - -static int digi_write_room( struct usb_serial_port *port ) +static int digi_write_room(struct usb_serial_port *port) { int room; struct digi_port *priv = usb_get_serial_port_data(port); unsigned long flags = 0; + spin_lock_irqsave(&priv->dp_port_lock, flags); - spin_lock_irqsave( &priv->dp_port_lock, flags ); - - if( port->write_urb->status == -EINPROGRESS - || priv->dp_write_urb_in_use ) + if (port->write_urb->status == -EINPROGRESS || priv->dp_write_urb_in_use) room = 0; else room = port->bulk_out_size - 2 - priv->dp_out_buf_len; - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - -dbg( "digi_write_room: port=%d, room=%d", priv->dp_port_num, room ); - return( room ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + dbg("digi_write_room: port=%d, room=%d", priv->dp_port_num, room); + return room; } - -static int digi_chars_in_buffer( struct usb_serial_port *port ) +static int digi_chars_in_buffer(struct usb_serial_port *port) { struct digi_port *priv = usb_get_serial_port_data(port); - if( port->write_urb->status == -EINPROGRESS - || priv->dp_write_urb_in_use ) { -dbg( "digi_chars_in_buffer: port=%d, chars=%d", priv->dp_port_num, port->bulk_out_size - 2 ); - /* return( port->bulk_out_size - 2 ); */ - return( 256 ); + if (port->write_urb->status == -EINPROGRESS + || priv->dp_write_urb_in_use) { + dbg("digi_chars_in_buffer: port=%d, chars=%d", + priv->dp_port_num, port->bulk_out_size - 2); + /* return(port->bulk_out_size - 2); */ + return 256; } else { -dbg( "digi_chars_in_buffer: port=%d, chars=%d", priv->dp_port_num, priv->dp_out_buf_len ); - return( priv->dp_out_buf_len ); + dbg("digi_chars_in_buffer: port=%d, chars=%d", + priv->dp_port_num, priv->dp_out_buf_len); + return priv->dp_out_buf_len; } } -static int digi_open( struct usb_serial_port *port, struct file *filp ) +static int digi_open(struct usb_serial_port *port, struct file *filp) { - int ret; unsigned char buf[32]; struct digi_port *priv = usb_get_serial_port_data(port); struct ktermios not_termios; unsigned long flags = 0; - -dbg( "digi_open: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_count ); + dbg("digi_open: TOP: port=%d, open_count=%d", + priv->dp_port_num, port->open_count); /* be sure the device is started up */ - if( digi_startup_device( port->serial ) != 0 ) - return( -ENXIO ); + if (digi_startup_device(port->serial) != 0) + return -ENXIO; - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); /* don't wait on a close in progress for non-blocking opens */ - if( priv->dp_in_close && (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0 ) { - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - return( -EAGAIN ); + if (priv->dp_in_close && (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0) { + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + return -EAGAIN; } /* wait for a close in progress to finish */ - while( priv->dp_in_close ) { + while(priv->dp_in_close) { cond_wait_interruptible_timeout_irqrestore( &priv->dp_close_wait, DIGI_RETRY_TIMEOUT, - &priv->dp_port_lock, flags ); - if( signal_pending(current) ) { - return( -EINTR ); - } - spin_lock_irqsave( &priv->dp_port_lock, flags ); + &priv->dp_port_lock, flags); + if (signal_pending(current)) + return -EINTR; + spin_lock_irqsave(&priv->dp_port_lock, flags); } - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); /* read modem signals automatically whenever they change */ buf[0] = DIGI_CMD_READ_INPUT_SIGNALS; @@ -1486,23 +1381,22 @@ dbg( "digi_open: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_cou buf[6] = DIGI_FLUSH_TX | DIGI_FLUSH_RX; buf[7] = 0; - if( (ret=digi_write_oob_command( port, buf, 8, 1 )) != 0 ) - dbg( "digi_open: write oob failed, ret=%d", ret ); + if ((ret = digi_write_oob_command(port, buf, 8, 1)) != 0) + dbg("digi_open: write oob failed, ret=%d", ret); /* set termios settings */ not_termios.c_cflag = ~port->tty->termios->c_cflag; not_termios.c_iflag = ~port->tty->termios->c_iflag; - digi_set_termios( port, ¬_termios ); + digi_set_termios(port, ¬_termios); /* set DTR and RTS */ - digi_set_modem_signals( port, TIOCM_DTR|TIOCM_RTS, 1 ); - - return( 0 ); + digi_set_modem_signals(port, TIOCM_DTR|TIOCM_RTS, 1); + return 0; } -static void digi_close( struct usb_serial_port *port, struct file *filp ) +static void digi_close(struct usb_serial_port *port, struct file *filp) { DEFINE_WAIT(wait); int ret; @@ -1511,40 +1405,37 @@ static void digi_close( struct usb_serial_port *port, struct file *filp ) struct digi_port *priv = usb_get_serial_port_data(port); unsigned long flags = 0; - -dbg( "digi_close: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_count ); - + dbg("digi_close: TOP: port=%d, open_count=%d", + priv->dp_port_num, port->open_count); /* if disconnected, just clear flags */ if (!usb_get_intfdata(port->serial->interface)) goto exit; /* do cleanup only after final close on this port */ - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); priv->dp_in_close = 1; - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); /* tell line discipline to process only XON/XOFF */ tty->closing = 1; /* wait for output to drain */ - if( (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0 ) { - tty_wait_until_sent( tty, DIGI_CLOSE_TIMEOUT ); - } + if ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0) + tty_wait_until_sent(tty, DIGI_CLOSE_TIMEOUT); /* flush driver and line discipline buffers */ - if( tty->driver->flush_buffer ) - tty->driver->flush_buffer( tty ); + if (tty->driver->flush_buffer) + tty->driver->flush_buffer(tty); tty_ldisc_flush(tty); if (port->serial->dev) { /* wait for transmit idle */ - if( (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0 ) { - digi_transmit_idle( port, DIGI_CLOSE_TIMEOUT ); + if ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0) { + digi_transmit_idle(port, DIGI_CLOSE_TIMEOUT); } - /* drop DTR and RTS */ - digi_set_modem_signals( port, 0, 0 ); + digi_set_modem_signals(port, 0, 0); /* disable input flow control */ buf[0] = DIGI_CMD_SET_INPUT_FLOW_CONTROL; @@ -1576,8 +1467,8 @@ dbg( "digi_close: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_co buf[18] = DIGI_FLUSH_TX | DIGI_FLUSH_RX; buf[19] = 0; - if( (ret=digi_write_oob_command( port, buf, 20, 0 )) != 0 ) - dbg( "digi_close: write oob failed, ret=%d", ret ); + if ((ret = digi_write_oob_command(port, buf, 20, 0)) != 0) + dbg("digi_close: write oob failed, ret=%d", ret); /* wait for final commands on oob port to complete */ prepare_to_wait(&priv->dp_flush_wait, &wait, TASK_INTERRUPTIBLE); @@ -1587,17 +1478,14 @@ dbg( "digi_close: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_co /* shutdown any outstanding bulk writes */ usb_kill_urb(port->write_urb); } - tty->closing = 0; - exit: - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); priv->dp_write_urb_in_use = 0; priv->dp_in_close = 0; - wake_up_interruptible( &priv->dp_close_wait ); - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - -dbg( "digi_close: done" ); + wake_up_interruptible(&priv->dp_close_wait); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + dbg("digi_close: done"); } @@ -1608,155 +1496,136 @@ dbg( "digi_close: done" ); * urbs initialized. Returns 0 if successful, non-zero error otherwise. */ -static int digi_startup_device( struct usb_serial *serial ) +static int digi_startup_device(struct usb_serial *serial) { - int i,ret = 0; struct digi_serial *serial_priv = usb_get_serial_data(serial); struct usb_serial_port *port; - /* be sure this happens exactly once */ - spin_lock( &serial_priv->ds_serial_lock ); - if( serial_priv->ds_device_started ) { - spin_unlock( &serial_priv->ds_serial_lock ); - return( 0 ); + spin_lock(&serial_priv->ds_serial_lock); + if (serial_priv->ds_device_started) { + spin_unlock(&serial_priv->ds_serial_lock); + return 0; } serial_priv->ds_device_started = 1; - spin_unlock( &serial_priv->ds_serial_lock ); + spin_unlock(&serial_priv->ds_serial_lock); /* start reading from each bulk in endpoint for the device */ /* set USB_DISABLE_SPD flag for write bulk urbs */ - for( i=0; itype->num_ports+1; i++ ) { - + for (i = 0; i < serial->type->num_ports + 1; i++) { port = serial->port[i]; - port->write_urb->dev = port->serial->dev; - - if( (ret=usb_submit_urb(port->read_urb, GFP_KERNEL)) != 0 ) { - err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__, - ret, i ); + if ((ret = usb_submit_urb(port->read_urb, GFP_KERNEL)) != 0) { + err("%s: usb_submit_urb failed, ret=%d, port=%d", + __FUNCTION__, ret, i); break; } - } - - return( ret ); - + return ret; } -static int digi_startup( struct usb_serial *serial ) +static int digi_startup(struct usb_serial *serial) { int i; struct digi_port *priv; struct digi_serial *serial_priv; - -dbg( "digi_startup: TOP" ); + dbg("digi_startup: TOP"); /* allocate the private data structures for all ports */ /* number of regular ports + 1 for the out-of-band port */ - for( i=0; itype->num_ports+1; i++ ) { - + for(i = 0; i < serial->type->num_ports + 1; i++) { /* allocate port private structure */ - priv = kmalloc( sizeof(struct digi_port), - GFP_KERNEL ); - if( priv == (struct digi_port *)0 ) { - while( --i >= 0 ) - kfree( usb_get_serial_port_data(serial->port[i]) ); - return( 1 ); /* error */ + priv = kmalloc(sizeof(struct digi_port), GFP_KERNEL); + if (priv == NULL) { + while (--i >= 0) + kfree(usb_get_serial_port_data(serial->port[i])); + return 1; /* error */ } /* initialize port private structure */ - spin_lock_init( &priv->dp_port_lock ); + spin_lock_init(&priv->dp_port_lock); priv->dp_port_num = i; priv->dp_out_buf_len = 0; priv->dp_write_urb_in_use = 0; priv->dp_modem_signals = 0; - init_waitqueue_head( &priv->dp_modem_change_wait ); + init_waitqueue_head(&priv->dp_modem_change_wait); priv->dp_transmit_idle = 0; - init_waitqueue_head( &priv->dp_transmit_idle_wait ); + init_waitqueue_head(&priv->dp_transmit_idle_wait); priv->dp_throttled = 0; priv->dp_throttle_restart = 0; - init_waitqueue_head( &priv->dp_flush_wait ); + init_waitqueue_head(&priv->dp_flush_wait); priv->dp_in_close = 0; - init_waitqueue_head( &priv->dp_close_wait ); + init_waitqueue_head(&priv->dp_close_wait); INIT_WORK(&priv->dp_wakeup_work, digi_wakeup_write_lock); priv->dp_port = serial->port[i]; - /* initialize write wait queue for this port */ - init_waitqueue_head( &serial->port[i]->write_wait ); + init_waitqueue_head(&serial->port[i]->write_wait); usb_set_serial_port_data(serial->port[i], priv); } /* allocate serial private structure */ - serial_priv = kmalloc( sizeof(struct digi_serial), - GFP_KERNEL ); - if( serial_priv == (struct digi_serial *)0 ) { - for( i=0; itype->num_ports+1; i++ ) - kfree( usb_get_serial_port_data(serial->port[i]) ); - return( 1 ); /* error */ + serial_priv = kmalloc(sizeof(struct digi_serial), GFP_KERNEL); + if (serial_priv == NULL) { + for (i = 0; i < serial->type->num_ports + 1; i++) + kfree(usb_get_serial_port_data(serial->port[i])); + return 1; /* error */ } /* initialize serial private structure */ - spin_lock_init( &serial_priv->ds_serial_lock ); + spin_lock_init(&serial_priv->ds_serial_lock); serial_priv->ds_oob_port_num = serial->type->num_ports; serial_priv->ds_oob_port = serial->port[serial_priv->ds_oob_port_num]; serial_priv->ds_device_started = 0; usb_set_serial_data(serial, serial_priv); - return( 0 ); - + return 0; } -static void digi_shutdown( struct usb_serial *serial ) +static void digi_shutdown(struct usb_serial *serial) { - int i; - - -dbg( "digi_shutdown: TOP, in_interrupt()=%ld", in_interrupt() ); + dbg("digi_shutdown: TOP, in_interrupt()=%ld", in_interrupt()); /* stop reads and writes on all ports */ - for( i=0; itype->num_ports+1; i++ ) { + for (i = 0; i < serial->type->num_ports + 1; i++) { usb_kill_urb(serial->port[i]->read_urb); usb_kill_urb(serial->port[i]->write_urb); } /* free the private data structures for all ports */ /* number of regular ports + 1 for the out-of-band port */ - for( i=0; itype->num_ports+1; i++ ) - kfree( usb_get_serial_port_data(serial->port[i]) ); - kfree( usb_get_serial_data(serial) ); + for(i = 0; i < serial->type->num_ports + 1; i++) + kfree(usb_get_serial_port_data(serial->port[i])); + kfree(usb_get_serial_data(serial)); } -static void digi_read_bulk_callback( struct urb *urb ) +static void digi_read_bulk_callback(struct urb *urb) { - struct usb_serial_port *port = (struct usb_serial_port *)urb->context; struct digi_port *priv; struct digi_serial *serial_priv; int ret; int status = urb->status; - -dbg( "digi_read_bulk_callback: TOP" ); + dbg("digi_read_bulk_callback: TOP"); /* port sanity check, do not resubmit if port is not valid */ - if( port == NULL || (priv=usb_get_serial_port_data(port)) == NULL ) { + if (port == NULL || (priv = usb_get_serial_port_data(port)) == NULL) { err("%s: port or port->private is NULL, status=%d", __FUNCTION__, status); return; } - if( port->serial == NULL - || (serial_priv=usb_get_serial_data(port->serial)) == NULL ) { + if (port->serial == NULL || + (serial_priv=usb_get_serial_data(port->serial)) == NULL) { err("%s: serial is bad or serial->private is NULL, status=%d", - __FUNCTION__, status); + __FUNCTION__, status); return; } @@ -1768,24 +1637,23 @@ dbg( "digi_read_bulk_callback: TOP" ); } /* handle oob or inb callback, do not resubmit if error */ - if( priv->dp_port_num == serial_priv->ds_oob_port_num ) { - if( digi_read_oob_callback( urb ) != 0 ) + if (priv->dp_port_num == serial_priv->ds_oob_port_num) { + if (digi_read_oob_callback(urb) != 0) return; } else { - if( digi_read_inb_callback( urb ) != 0 ) + if (digi_read_inb_callback(urb) != 0) return; } /* continue read */ urb->dev = port->serial->dev; - if( (ret=usb_submit_urb(urb, GFP_ATOMIC)) != 0 ) { - err("%s: failed resubmitting urb, ret=%d, port=%d", __FUNCTION__, - ret, priv->dp_port_num ); + if ((ret = usb_submit_urb(urb, GFP_ATOMIC)) != 0) { + err("%s: failed resubmitting urb, ret=%d, port=%d", + __FUNCTION__, ret, priv->dp_port_num); } } - /* * Digi Read INB Callback * @@ -1796,7 +1664,7 @@ dbg( "digi_read_bulk_callback: TOP" ); * throttled, and -1 if the sanity checks failed. */ -static int digi_read_inb_callback( struct urb *urb ) +static int digi_read_inb_callback(struct urb *urb) { struct usb_serial_port *port = (struct usb_serial_port *)urb->context; @@ -1812,72 +1680,67 @@ static int digi_read_inb_callback( struct urb *urb ) /* do not process callbacks on closed ports */ /* but do continue the read chain */ - if( port->open_count == 0 ) - return( 0 ); + if (port->open_count == 0) + return 0; /* short/multiple packet check */ - if( urb->actual_length != len + 2 ) { - err("%s: INCOMPLETE OR MULTIPLE PACKET, urb status=%d, " + if (urb->actual_length != len + 2) { + err("%s: INCOMPLETE OR MULTIPLE PACKET, urb->status=%d, " "port=%d, opcode=%d, len=%d, actual_length=%d, " - "port_status=%d", __FUNCTION__, status, priv->dp_port_num, + "status=%d", __FUNCTION__, status, priv->dp_port_num, opcode, len, urb->actual_length, port_status); - return( -1 ); + return -1; } - spin_lock( &priv->dp_port_lock ); + spin_lock(&priv->dp_port_lock); /* check for throttle; if set, do not resubmit read urb */ /* indicate the read chain needs to be restarted on unthrottle */ throttled = priv->dp_throttled; - if( throttled ) + if (throttled) priv->dp_throttle_restart = 1; /* receive data */ - if( opcode == DIGI_CMD_RECEIVE_DATA ) { - + if (opcode == DIGI_CMD_RECEIVE_DATA) { /* get flag from port_status */ flag = 0; /* overrun is special, not associated with a char */ - if (port_status & DIGI_OVERRUN_ERROR) { - tty_insert_flip_char( tty, 0, TTY_OVERRUN ); - } + if (port_status & DIGI_OVERRUN_ERROR) + tty_insert_flip_char(tty, 0, TTY_OVERRUN); /* break takes precedence over parity, */ /* which takes precedence over framing errors */ - if (port_status & DIGI_BREAK_ERROR) { + if (port_status & DIGI_BREAK_ERROR) flag = TTY_BREAK; - } else if (port_status & DIGI_PARITY_ERROR) { + else if (port_status & DIGI_PARITY_ERROR) flag = TTY_PARITY; - } else if (port_status & DIGI_FRAMING_ERROR) { + else if (port_status & DIGI_FRAMING_ERROR) flag = TTY_FRAME; - } /* data length is len-1 (one byte of len is port_status) */ --len; len = tty_buffer_request_room(tty, len); - if( len > 0 ) { + if (len > 0) { /* Hot path */ - if(flag == TTY_NORMAL) + if (flag == TTY_NORMAL) tty_insert_flip_string(tty, data, len); else { for(i = 0; i < len; i++) tty_insert_flip_char(tty, data[i], flag); } - tty_flip_buffer_push( tty ); + tty_flip_buffer_push(tty); } } + spin_unlock(&priv->dp_port_lock); - spin_unlock( &priv->dp_port_lock ); - - if( opcode == DIGI_CMD_RECEIVE_DISABLE ) { - dbg("%s: got RECEIVE_DISABLE", __FUNCTION__ ); - } else if( opcode != DIGI_CMD_RECEIVE_DATA ) { - dbg("%s: unknown opcode: %d", __FUNCTION__, opcode ); - } + if (opcode == DIGI_CMD_RECEIVE_DISABLE) + dbg("%s: got RECEIVE_DISABLE", __FUNCTION__); + else if (opcode != DIGI_CMD_RECEIVE_DATA) + dbg("%s: unknown opcode: %d", __FUNCTION__, opcode); - return( throttled ? 1 : 0 ); + return(throttled ? 1 : 0); } @@ -1891,7 +1754,7 @@ static int digi_read_inb_callback( struct urb *urb ) * -1 if the sanity checks failed. */ -static int digi_read_oob_callback( struct urb *urb ) +static int digi_read_oob_callback(struct urb *urb) { struct usb_serial_port *port = (struct usb_serial_port *)urb->context; @@ -1900,87 +1763,75 @@ static int digi_read_oob_callback( struct urb *urb ) int opcode, line, status, val; int i; - -dbg( "digi_read_oob_callback: port=%d, len=%d", priv->dp_port_num, -urb->actual_length ); + dbg("digi_read_oob_callback: port=%d, len=%d", + priv->dp_port_num, urb->actual_length); /* handle each oob command */ - for( i=0; iactual_length-3; ) { - + for(i = 0; i < urb->actual_length - 3;) { opcode = ((unsigned char *)urb->transfer_buffer)[i++]; line = ((unsigned char *)urb->transfer_buffer)[i++]; status = ((unsigned char *)urb->transfer_buffer)[i++]; val = ((unsigned char *)urb->transfer_buffer)[i++]; -dbg( "digi_read_oob_callback: opcode=%d, line=%d, status=%d, val=%d", -opcode, line, status, val ); + dbg("digi_read_oob_callback: opcode=%d, line=%d, status=%d, val=%d", + opcode, line, status, val); - if( status != 0 || line >= serial->type->num_ports ) + if (status != 0 || line >= serial->type->num_ports) continue; port = serial->port[line]; - if ((priv=usb_get_serial_port_data(port)) == NULL ) + if ((priv=usb_get_serial_port_data(port)) == NULL) return -1; - if( opcode == DIGI_CMD_READ_INPUT_SIGNALS ) { - - spin_lock( &priv->dp_port_lock ); - + if (opcode == DIGI_CMD_READ_INPUT_SIGNALS) { + spin_lock(&priv->dp_port_lock); /* convert from digi flags to termiox flags */ - if( val & DIGI_READ_INPUT_SIGNALS_CTS ) { + if (val & DIGI_READ_INPUT_SIGNALS_CTS) { priv->dp_modem_signals |= TIOCM_CTS; /* port must be open to use tty struct */ - if( port->open_count - && port->tty->termios->c_cflag & CRTSCTS ) { + if (port->open_count + && port->tty->termios->c_cflag & CRTSCTS) { port->tty->hw_stopped = 0; - digi_wakeup_write( port ); + digi_wakeup_write(port); } } else { priv->dp_modem_signals &= ~TIOCM_CTS; /* port must be open to use tty struct */ - if( port->open_count - && port->tty->termios->c_cflag & CRTSCTS ) { + if (port->open_count + && port->tty->termios->c_cflag & CRTSCTS) { port->tty->hw_stopped = 1; } } - if( val & DIGI_READ_INPUT_SIGNALS_DSR ) + if (val & DIGI_READ_INPUT_SIGNALS_DSR) priv->dp_modem_signals |= TIOCM_DSR; else priv->dp_modem_signals &= ~TIOCM_DSR; - if( val & DIGI_READ_INPUT_SIGNALS_RI ) + if (val & DIGI_READ_INPUT_SIGNALS_RI) priv->dp_modem_signals |= TIOCM_RI; else priv->dp_modem_signals &= ~TIOCM_RI; - if( val & DIGI_READ_INPUT_SIGNALS_DCD ) + if (val & DIGI_READ_INPUT_SIGNALS_DCD) priv->dp_modem_signals |= TIOCM_CD; else priv->dp_modem_signals &= ~TIOCM_CD; - wake_up_interruptible( &priv->dp_modem_change_wait ); - spin_unlock( &priv->dp_port_lock ); - - } else if( opcode == DIGI_CMD_TRANSMIT_IDLE ) { - - spin_lock( &priv->dp_port_lock ); + wake_up_interruptible(&priv->dp_modem_change_wait); + spin_unlock(&priv->dp_port_lock); + } else if (opcode == DIGI_CMD_TRANSMIT_IDLE) { + spin_lock(&priv->dp_port_lock); priv->dp_transmit_idle = 1; - wake_up_interruptible( &priv->dp_transmit_idle_wait ); - spin_unlock( &priv->dp_port_lock ); - - } else if( opcode == DIGI_CMD_IFLUSH_FIFO ) { - - wake_up_interruptible( &priv->dp_flush_wait ); - + wake_up_interruptible(&priv->dp_transmit_idle_wait); + spin_unlock(&priv->dp_port_lock); + } else if (opcode == DIGI_CMD_IFLUSH_FIFO) { + wake_up_interruptible(&priv->dp_flush_wait); } - } - - return( 0 ); + return 0; } - -static int __init digi_init (void) +static int __init digi_init(void) { int retval; retval = usb_serial_register(&digi_acceleport_2_device); @@ -2002,12 +1853,11 @@ static int __init digi_init (void) return retval; } - static void __exit digi_exit (void) { - usb_deregister (&digi_driver); - usb_serial_deregister (&digi_acceleport_2_device); - usb_serial_deregister (&digi_acceleport_4_device); + usb_deregister(&digi_driver); + usb_serial_deregister(&digi_acceleport_2_device); + usb_serial_deregister(&digi_acceleport_4_device); } @@ -2015,8 +1865,8 @@ module_init(digi_init); module_exit(digi_exit); -MODULE_AUTHOR( DRIVER_AUTHOR ); -MODULE_DESCRIPTION( DRIVER_DESC ); +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); module_param(debug, bool, S_IRUGO | S_IWUSR); diff --git a/trunk/drivers/usb/serial/io_edgeport.c b/trunk/drivers/usb/serial/io_edgeport.c index dd42f57089ff..2ecb1d2a034d 100644 --- a/trunk/drivers/usb/serial/io_edgeport.c +++ b/trunk/drivers/usb/serial/io_edgeport.c @@ -2366,9 +2366,8 @@ static int send_cmd_write_baud_rate (struct edgeport_port *edge_port, int baudRa int status; unsigned char number = edge_port->port->number - edge_port->port->serial->minor; - if ((!edge_serial->is_epic) || - ((edge_serial->is_epic) && - (!edge_serial->epic_descriptor.Supports.IOSPSetBaudRate))) { + if (edge_serial->is_epic && + !edge_serial->epic_descriptor.Supports.IOSPSetBaudRate) { dbg("SendCmdWriteBaudRate - NOT Setting baud rate for port = %d, baud = %d", edge_port->port->number, baudRate); return 0; @@ -2461,18 +2460,16 @@ static int send_cmd_write_uart_register (struct edgeport_port *edge_port, __u8 r dbg("%s - write to %s register 0x%02x", (regNum == MCR) ? "MCR" : "LCR", __FUNCTION__, regValue); - if ((!edge_serial->is_epic) || - ((edge_serial->is_epic) && - (!edge_serial->epic_descriptor.Supports.IOSPWriteMCR) && - (regNum == MCR))) { + if (edge_serial->is_epic && + !edge_serial->epic_descriptor.Supports.IOSPWriteMCR && + regNum == MCR) { dbg("SendCmdWriteUartReg - Not writing to MCR Register"); return 0; } - if ((!edge_serial->is_epic) || - ((edge_serial->is_epic) && - (!edge_serial->epic_descriptor.Supports.IOSPWriteLCR) && - (regNum == LCR))) { + if (edge_serial->is_epic && + !edge_serial->epic_descriptor.Supports.IOSPWriteLCR && + regNum == LCR) { dbg ("SendCmdWriteUartReg - Not writing to LCR Register"); return 0; } diff --git a/trunk/drivers/usb/serial/mct_u232.c b/trunk/drivers/usb/serial/mct_u232.c index 2a3fabcf5186..e08c9bb403d8 100644 --- a/trunk/drivers/usb/serial/mct_u232.c +++ b/trunk/drivers/usb/serial/mct_u232.c @@ -184,21 +184,21 @@ struct mct_u232_private { * we do not know how to support. We ignore them for the moment. * XXX Rate-limit the error message, it's user triggerable. */ -static int mct_u232_calculate_baud_rate(struct usb_serial *serial, int value) +static int mct_u232_calculate_baud_rate(struct usb_serial *serial, speed_t value) { if (le16_to_cpu(serial->dev->descriptor.idProduct) == MCT_U232_SITECOM_PID || le16_to_cpu(serial->dev->descriptor.idProduct) == MCT_U232_BELKIN_F5U109_PID) { switch (value) { - case B300: return 0x01; - case B600: return 0x02; /* this one not tested */ - case B1200: return 0x03; - case B2400: return 0x04; - case B4800: return 0x06; - case B9600: return 0x08; - case B19200: return 0x09; - case B38400: return 0x0a; - case B57600: return 0x0b; - case B115200: return 0x0c; + case 300: return 0x01; + case 600: return 0x02; /* this one not tested */ + case 1200: return 0x03; + case 2400: return 0x04; + case 4800: return 0x06; + case 9600: return 0x08; + case 19200: return 0x09; + case 38400: return 0x0a; + case 57600: return 0x0b; + case 115200: return 0x0c; default: err("MCT USB-RS232: unsupported baudrate request 0x%x," " using default of B9600", value); @@ -206,27 +206,27 @@ static int mct_u232_calculate_baud_rate(struct usb_serial *serial, int value) } } else { switch (value) { - case B300: value = 300; break; - case B600: value = 600; break; - case B1200: value = 1200; break; - case B2400: value = 2400; break; - case B4800: value = 4800; break; - case B9600: value = 9600; break; - case B19200: value = 19200; break; - case B38400: value = 38400; break; - case B57600: value = 57600; break; - case B115200: value = 115200; break; - default: - err("MCT USB-RS232: unsupported baudrate request 0x%x," - " using default of B9600", value); - value = 9600; + case 300: break; + case 600: break; + case 1200: break; + case 2400: break; + case 4800: break; + case 9600: break; + case 19200: break; + case 38400: break; + case 57600: break; + case 115200: break; + default: + err("MCT USB-RS232: unsupported baudrate request 0x%x," + " using default of B9600", value); + value = 9600; } return 115200/value; } } static int mct_u232_set_baud_rate(struct usb_serial *serial, struct usb_serial_port *port, - int value) + speed_t value) { __le32 divisor; int rc; @@ -634,7 +634,7 @@ static void mct_u232_set_termios (struct usb_serial_port *port, mct_u232_set_modem_ctrl(serial, control_state); } - mct_u232_set_baud_rate(serial, port, cflag & CBAUD); + mct_u232_set_baud_rate(serial, port, tty_get_baud_rate(port->tty)); if ((cflag & CBAUD) == B0 ) { dbg("%s: baud is B0", __FUNCTION__); diff --git a/trunk/drivers/usb/serial/mct_u232.h b/trunk/drivers/usb/serial/mct_u232.h index a61bac8f224a..aae10c8174d6 100644 --- a/trunk/drivers/usb/serial/mct_u232.h +++ b/trunk/drivers/usb/serial/mct_u232.h @@ -79,7 +79,7 @@ * and "Intel solution". They are the regular MCT and "Sitecom" for us. * This is pointless to document in the header, see the code for the bits. */ -static int mct_u232_calculate_baud_rate(struct usb_serial *serial, int value); +static int mct_u232_calculate_baud_rate(struct usb_serial *serial, speed_t value); /* * Line Control Register (LCR) diff --git a/trunk/drivers/usb/serial/sierra.c b/trunk/drivers/usb/serial/sierra.c index 0794ccdebfd4..0bb8de4cc524 100644 --- a/trunk/drivers/usb/serial/sierra.c +++ b/trunk/drivers/usb/serial/sierra.c @@ -45,7 +45,7 @@ enum devicetype { DEVICE_INSTALLER = 2, }; -int sierra_set_power_state(struct usb_device *udev, __u16 swiState) +static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) { int result; dev_dbg(&udev->dev, "%s", "SET POWER STATE"); @@ -60,7 +60,7 @@ int sierra_set_power_state(struct usb_device *udev, __u16 swiState) return result; } -int sierra_set_ms_mode(struct usb_device *udev, __u16 eSocMode) +static int sierra_set_ms_mode(struct usb_device *udev, __u16 eSocMode) { int result; dev_dbg(&udev->dev, "%s", "DEVICE MODE SWITCH"); @@ -75,7 +75,8 @@ int sierra_set_ms_mode(struct usb_device *udev, __u16 eSocMode) return result; } -int sierra_probe(struct usb_interface *iface, const struct usb_device_id *id) +static int sierra_probe(struct usb_interface *iface, + const struct usb_device_id *id) { int result; struct usb_device *udev; diff --git a/trunk/drivers/usb/serial/usb-serial.c b/trunk/drivers/usb/serial/usb-serial.c index a3665659d13b..9bf01a5efc84 100644 --- a/trunk/drivers/usb/serial/usb-serial.c +++ b/trunk/drivers/usb/serial/usb-serial.c @@ -60,19 +60,19 @@ static struct usb_driver usb_serial_driver = { static int debug; static struct usb_serial *serial_table[SERIAL_TTY_MINORS]; /* initially all NULL */ -static spinlock_t table_lock; +static DEFINE_MUTEX(table_lock); static LIST_HEAD(usb_serial_driver_list); struct usb_serial *usb_serial_get_by_index(unsigned index) { struct usb_serial *serial; - spin_lock(&table_lock); + mutex_lock(&table_lock); serial = serial_table[index]; if (serial) kref_get(&serial->kref); - spin_unlock(&table_lock); + mutex_unlock(&table_lock); return serial; } @@ -84,7 +84,7 @@ static struct usb_serial *get_free_serial (struct usb_serial *serial, int num_po dbg("%s %d", __FUNCTION__, num_ports); *minor = 0; - spin_lock(&table_lock); + mutex_lock(&table_lock); for (i = 0; i < SERIAL_TTY_MINORS; ++i) { if (serial_table[i]) continue; @@ -106,10 +106,10 @@ static struct usb_serial *get_free_serial (struct usb_serial *serial, int num_po serial_table[i] = serial; serial->port[j++]->number = i; } - spin_unlock(&table_lock); + mutex_unlock(&table_lock); return serial; } - spin_unlock(&table_lock); + mutex_unlock(&table_lock); return NULL; } @@ -172,9 +172,9 @@ static void destroy_serial(struct kref *kref) void usb_serial_put(struct usb_serial *serial) { - spin_lock(&table_lock); + mutex_lock(&table_lock); kref_put(&serial->kref, destroy_serial); - spin_unlock(&table_lock); + mutex_unlock(&table_lock); } /***************************************************************************** @@ -1077,16 +1077,17 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message) struct usb_serial_port *port; int i, r = 0; - if (serial) { - for (i = 0; i < serial->num_ports; ++i) { - port = serial->port[i]; - if (port) - kill_traffic(port); - } + if (!serial) /* device has been disconnected */ + return 0; + + for (i = 0; i < serial->num_ports; ++i) { + port = serial->port[i]; + if (port) + kill_traffic(port); } if (serial->type->suspend) - serial->type->suspend(serial, message); + r = serial->type->suspend(serial, message); return r; } @@ -1128,7 +1129,6 @@ static int __init usb_serial_init(void) return -ENOMEM; /* Initialize our global data */ - spin_lock_init(&table_lock); for (i = 0; i < SERIAL_TTY_MINORS; ++i) { serial_table[i] = NULL; } diff --git a/trunk/drivers/usb/storage/unusual_devs.h b/trunk/drivers/usb/storage/unusual_devs.h index a624e72f81dc..d8d008d42946 100644 --- a/trunk/drivers/usb/storage/unusual_devs.h +++ b/trunk/drivers/usb/storage/unusual_devs.h @@ -320,6 +320,13 @@ UNUSUAL_DEV( 0x04b0, 0x0401, 0x0200, 0x0200, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_FIX_CAPACITY), +/* Reported by Milinevsky Dmitry */ +UNUSUAL_DEV( 0x04b0, 0x0409, 0x0100, 0x0100, + "NIKON", + "NIKON DSC D50", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_FIX_CAPACITY), + /* Reported by Andreas Bockhold */ UNUSUAL_DEV( 0x04b0, 0x0405, 0x0100, 0x0100, "NIKON", @@ -1357,6 +1364,20 @@ UNUSUAL_DEV( 0x0f19, 0x0105, 0x0100, 0x0100, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_IGNORE_RESIDUE ), +/* Jeremy Katz : + * The Blackberry Pearl can run in two modes; a usb-storage only mode + * and a mode that allows access via mass storage and to its database. + * The berry_charge module will set the device to dual mode and thus we + * should ignore its native mode if that module is built + */ +#ifdef CONFIG_USB_BERRY_CHARGE +UNUSUAL_DEV( 0x0fca, 0x0006, 0x0001, 0x0001, + "RIM", + "Blackberry Pearl", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_IGNORE_DEVICE ), +#endif + /* Reported by Michael Stattmann */ UNUSUAL_DEV( 0x0fce, 0xd008, 0x0000, 0x0000, "Sony Ericsson", diff --git a/trunk/drivers/video/Kconfig b/trunk/drivers/video/Kconfig index a7231d171bd5..5216c11d4dec 100644 --- a/trunk/drivers/video/Kconfig +++ b/trunk/drivers/video/Kconfig @@ -1645,18 +1645,6 @@ config FB_MAXINE DECstation series (Personal DECstation 5000/20, /25, /33, /50, Codename "Maxine"). -config FB_TX3912 - bool "TMPTX3912/PR31700 frame buffer support" - depends on (FB = y) && NINO - select FB_CFB_FILLRECT - select FB_CFB_COPYAREA - select FB_CFB_IMAGEBLIT - help - The TX3912 is a Toshiba RISC processor based on the MIPS 3900 core - see . - - Say Y here to enable kernel support for the on-board framebuffer. - config FB_G364 bool "G364 frame buffer support" depends on (FB = y) && (MIPS_MAGNUM_4000 || OLIVETTI_M700) diff --git a/trunk/drivers/video/Makefile b/trunk/drivers/video/Makefile index 518933d4905f..06eec7b182b7 100644 --- a/trunk/drivers/video/Makefile +++ b/trunk/drivers/video/Makefile @@ -103,7 +103,6 @@ obj-$(CONFIG_FB_PMAG_AA) += pmag-aa-fb.o obj-$(CONFIG_FB_PMAG_BA) += pmag-ba-fb.o obj-$(CONFIG_FB_PMAGB_B) += pmagb-b-fb.o obj-$(CONFIG_FB_MAXINE) += maxinefb.o -obj-$(CONFIG_FB_TX3912) += tx3912fb.o obj-$(CONFIG_FB_S1D13XXX) += s1d13xxxfb.o obj-$(CONFIG_FB_IMX) += imxfb.o obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o diff --git a/trunk/drivers/video/acornfb.c b/trunk/drivers/video/acornfb.c index 61a8bf159cb0..eedb8285e32f 100644 --- a/trunk/drivers/video/acornfb.c +++ b/trunk/drivers/video/acornfb.c @@ -138,17 +138,6 @@ static struct pixclock arc_clocks[] = { { 41250, 42083, VIDC_CTRL_DIV1, VID_CTL_24MHz }, /* 24.000MHz */ }; -#ifdef CONFIG_ARCH_A5K -static struct pixclock a5k_clocks[] = { - { 117974, 120357, VIDC_CTRL_DIV3, VID_CTL_25MHz }, /* 8.392MHz */ - { 78649, 80238, VIDC_CTRL_DIV2, VID_CTL_25MHz }, /* 12.588MHz */ - { 58987, 60178, VIDC_CTRL_DIV1_5, VID_CTL_25MHz }, /* 16.588MHz */ - { 55000, 56111, VIDC_CTRL_DIV2, VID_CTL_36MHz }, /* 18.000MHz */ - { 39325, 40119, VIDC_CTRL_DIV1, VID_CTL_25MHz }, /* 25.175MHz */ - { 27500, 28055, VIDC_CTRL_DIV1, VID_CTL_36MHz }, /* 36.000MHz */ -}; -#endif - static struct pixclock * acornfb_valid_pixrate(struct fb_var_screeninfo *var) { @@ -163,15 +152,6 @@ acornfb_valid_pixrate(struct fb_var_screeninfo *var) pixclock < arc_clocks[i].max_clock) return arc_clocks + i; -#ifdef CONFIG_ARCH_A5K - if (machine_is_a5k()) { - for (i = 0; i < ARRAY_SIZE(a5k_clocks); i++) - if (pixclock > a5k_clocks[i].min_clock && - pixclock < a5k_clocks[i].max_clock) - return a5k_clocks + i; - } -#endif - return NULL; } diff --git a/trunk/drivers/video/console/fonts.c b/trunk/drivers/video/console/fonts.c index a6828d0a4c56..96979c377518 100644 --- a/trunk/drivers/video/console/fonts.c +++ b/trunk/drivers/video/console/fonts.c @@ -133,8 +133,8 @@ const struct font_desc *get_default_font(int xres, int yres, u32 font_w, if ((yres < 400) == (f->height <= 8)) c += 1000; - if (!(font_w & (1 << (f->width - 1))) || - !(font_w & (1 << (f->height - 1)))) + if ((font_w & (1 << (f->width - 1))) && + (font_h & (1 << (f->height - 1)))) c += 1000; if (c > cc) { diff --git a/trunk/drivers/video/fbmem.c b/trunk/drivers/video/fbmem.c index 215ac579f901..074027204702 100644 --- a/trunk/drivers/video/fbmem.c +++ b/trunk/drivers/video/fbmem.c @@ -244,8 +244,17 @@ static void fb_set_logo(struct fb_info *info, u8 xor = (info->fix.visual == FB_VISUAL_MONO01) ? 0xff : 0; u8 fg = 1, d; - if (fb_get_color_depth(&info->var, &info->fix) == 3) + switch (fb_get_color_depth(&info->var, &info->fix)) { + case 1: + fg = 1; + break; + case 2: + fg = 3; + break; + default: fg = 7; + break; + } if (info->fix.visual == FB_VISUAL_MONO01 || info->fix.visual == FB_VISUAL_MONO10) @@ -564,21 +573,6 @@ int fb_prepare_logo(struct fb_info *info, int rotate) depth = 4; } - if (depth >= 8) { - switch (info->fix.visual) { - case FB_VISUAL_TRUECOLOR: - fb_logo.needs_truepalette = 1; - break; - case FB_VISUAL_DIRECTCOLOR: - fb_logo.needs_directpalette = 1; - fb_logo.needs_cmapreset = 1; - break; - case FB_VISUAL_PSEUDOCOLOR: - fb_logo.needs_cmapreset = 1; - break; - } - } - /* Return if no suitable logo was found */ fb_logo.logo = fb_find_logo(depth); @@ -604,6 +598,22 @@ int fb_prepare_logo(struct fb_info *info, int rotate) else fb_logo.depth = 1; + + if (fb_logo.depth > 4 && depth > 4) { + switch (info->fix.visual) { + case FB_VISUAL_TRUECOLOR: + fb_logo.needs_truepalette = 1; + break; + case FB_VISUAL_DIRECTCOLOR: + fb_logo.needs_directpalette = 1; + fb_logo.needs_cmapreset = 1; + break; + case FB_VISUAL_PSEUDOCOLOR: + fb_logo.needs_cmapreset = 1; + break; + } + } + return fb_prepare_extra_logos(info, fb_logo.logo->height, yres); } diff --git a/trunk/drivers/video/geode/Kconfig b/trunk/drivers/video/geode/Kconfig index a814b6c2605c..7608429b3943 100644 --- a/trunk/drivers/video/geode/Kconfig +++ b/trunk/drivers/video/geode/Kconfig @@ -8,6 +8,21 @@ config FB_GEODE Say 'Y' here to allow you to select framebuffer drivers for the AMD Geode family of processors. +config FB_GEODE_LX + tristate "AMD Geode LX framebuffer support (EXPERIMENTAL)" + depends on FB && FB_GEODE + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + ---help--- + Framebuffer driver for the display controller integrated into the + AMD Geode LX processors. + + To compile this driver as a module, choose M here: the module will + be called lxfb. + + If unsure, say N. + config FB_GEODE_GX tristate "AMD Geode GX framebuffer support (EXPERIMENTAL)" depends on FB && FB_GEODE && EXPERIMENTAL diff --git a/trunk/drivers/video/geode/Makefile b/trunk/drivers/video/geode/Makefile index f896565bc312..957304b45fba 100644 --- a/trunk/drivers/video/geode/Makefile +++ b/trunk/drivers/video/geode/Makefile @@ -2,6 +2,8 @@ obj-$(CONFIG_FB_GEODE_GX1) += gx1fb.o obj-$(CONFIG_FB_GEODE_GX) += gxfb.o +obj-$(CONFIG_FB_GEODE_LX) += lxfb.o gx1fb-objs := gx1fb_core.o display_gx1.o video_cs5530.o gxfb-objs := gxfb_core.o display_gx.o video_gx.o +lxfb-objs := lxfb_core.o lxfb_ops.o diff --git a/trunk/drivers/video/geode/lxfb.h b/trunk/drivers/video/geode/lxfb.h new file mode 100644 index 000000000000..6c227f9592a5 --- /dev/null +++ b/trunk/drivers/video/geode/lxfb.h @@ -0,0 +1,199 @@ +#ifndef _LXFB_H_ +#define _LXFB_H_ + +#include + +#define OUTPUT_CRT 0x01 +#define OUTPUT_PANEL 0x02 + +struct lxfb_par { + int output; + int panel_width; + int panel_height; + + void __iomem *gp_regs; + void __iomem *dc_regs; + void __iomem *df_regs; +}; + +static inline unsigned int lx_get_pitch(unsigned int xres, int bpp) +{ + return (((xres * (bpp >> 3)) + 7) & ~7); +} + +void lx_set_mode(struct fb_info *); +void lx_get_gamma(struct fb_info *, unsigned int *, int); +void lx_set_gamma(struct fb_info *, unsigned int *, int); +unsigned int lx_framebuffer_size(void); +int lx_blank_display(struct fb_info *, int); +void lx_set_palette_reg(struct fb_info *, unsigned int, unsigned int, + unsigned int, unsigned int); + +/* MSRS */ + +#define MSR_LX_GLD_CONFIG 0x48002001 +#define MSR_LX_GLCP_DOTPLL 0x4c000015 +#define MSR_LX_DF_PADSEL 0x48000011 +#define MSR_LX_DC_SPARE 0x80000011 +#define MSR_LX_DF_GLCONFIG 0x48002001 + +#define MSR_LX_GLIU0_P2D_RO0 0x10000029 + +#define GLCP_DOTPLL_RESET (1 << 0) +#define GLCP_DOTPLL_BYPASS (1 << 15) +#define GLCP_DOTPLL_HALFPIX (1 << 24) +#define GLCP_DOTPLL_LOCK (1 << 25) + +#define DF_CONFIG_OUTPUT_MASK 0x38 +#define DF_OUTPUT_PANEL 0x08 +#define DF_OUTPUT_CRT 0x00 +#define DF_SIMULTANEOUS_CRT_AND_FP (1 << 15) + +#define DF_DEFAULT_TFT_PAD_SEL_LOW 0xDFFFFFFF +#define DF_DEFAULT_TFT_PAD_SEL_HIGH 0x0000003F + +#define DC_SPARE_DISABLE_CFIFO_HGO 0x00000800 +#define DC_SPARE_VFIFO_ARB_SELECT 0x00000400 +#define DC_SPARE_WM_LPEN_OVRD 0x00000200 +#define DC_SPARE_LOAD_WM_LPEN_MASK 0x00000100 +#define DC_SPARE_DISABLE_INIT_VID_PRI 0x00000080 +#define DC_SPARE_DISABLE_VFIFO_WM 0x00000040 +#define DC_SPARE_DISABLE_CWD_CHECK 0x00000020 +#define DC_SPARE_PIX8_PAN_FIX 0x00000010 +#define DC_SPARE_FIRST_REQ_MASK 0x00000002 + +/* Registers */ + +#define DC_UNLOCK 0x00 +#define DC_UNLOCK_CODE 0x4758 + +#define DC_GENERAL_CFG 0x04 +#define DC_GCFG_DFLE (1 << 0) +#define DC_GCFG_VIDE (1 << 3) +#define DC_GCFG_VGAE (1 << 7) +#define DC_GCFG_CMPE (1 << 5) +#define DC_GCFG_DECE (1 << 6) +#define DC_GCFG_FDTY (1 << 17) + +#define DC_DISPLAY_CFG 0x08 +#define DC_DCFG_TGEN (1 << 0) +#define DC_DCFG_GDEN (1 << 3) +#define DC_DCFG_VDEN (1 << 4) +#define DC_DCFG_TRUP (1 << 6) +#define DC_DCFG_DCEN (1 << 24) +#define DC_DCFG_PALB (1 << 25) +#define DC_DCFG_VISL (1 << 27) + +#define DC_DCFG_16BPP 0x0 + +#define DC_DCFG_DISP_MODE_MASK 0x00000300 +#define DC_DCFG_DISP_MODE_8BPP 0x00000000 +#define DC_DCFG_DISP_MODE_16BPP 0x00000100 +#define DC_DCFG_DISP_MODE_24BPP 0x00000200 +#define DC_DCFG_DISP_MODE_32BPP 0x00000300 + + +#define DC_ARB_CFG 0x0C + +#define DC_FB_START 0x10 +#define DC_CB_START 0x14 +#define DC_CURSOR_START 0x18 + +#define DC_DV_TOP 0x2C +#define DC_DV_TOP_ENABLE (1 << 0) + +#define DC_LINE_SIZE 0x30 +#define DC_GRAPHICS_PITCH 0x34 +#define DC_H_ACTIVE_TIMING 0x40 +#define DC_H_BLANK_TIMING 0x44 +#define DC_H_SYNC_TIMING 0x48 +#define DC_V_ACTIVE_TIMING 0x50 +#define DC_V_BLANK_TIMING 0x54 +#define DC_V_SYNC_TIMING 0x58 +#define DC_FB_ACTIVE 0x5C + +#define DC_PAL_ADDRESS 0x70 +#define DC_PAL_DATA 0x74 + +#define DC_PHY_MEM_OFFSET 0x84 + +#define DC_DV_CTL 0x88 +#define DC_DV_LINE_SIZE_MASK 0x00000C00 +#define DC_DV_LINE_SIZE_1024 0x00000000 +#define DC_DV_LINE_SIZE_2048 0x00000400 +#define DC_DV_LINE_SIZE_4096 0x00000800 +#define DC_DV_LINE_SIZE_8192 0x00000C00 + + +#define DC_GFX_SCALE 0x90 +#define DC_IRQ_FILT_CTL 0x94 + + +#define DC_IRQ 0xC8 +#define DC_IRQ_MASK (1 << 0) +#define DC_VSYNC_IRQ_MASK (1 << 1) +#define DC_IRQ_STATUS (1 << 20) +#define DC_VSYNC_IRQ_STATUS (1 << 21) + +#define DC_GENLCK_CTRL 0xD4 +#define DC_GENLCK_ENABLE (1 << 18) +#define DC_GC_ALPHA_FLICK_ENABLE (1 << 25) +#define DC_GC_FLICKER_FILTER_ENABLE (1 << 24) +#define DC_GC_FLICKER_FILTER_MASK (0x0F << 28) + +#define DC_COLOR_KEY 0xB8 +#define DC_CLR_KEY_ENABLE (1 << 24) + + +#define DC3_DV_LINE_SIZE_MASK 0x00000C00 +#define DC3_DV_LINE_SIZE_1024 0x00000000 +#define DC3_DV_LINE_SIZE_2048 0x00000400 +#define DC3_DV_LINE_SIZE_4096 0x00000800 +#define DC3_DV_LINE_SIZE_8192 0x00000C00 + +#define DF_VIDEO_CFG 0x0 +#define DF_VCFG_VID_EN (1 << 0) + +#define DF_DISPLAY_CFG 0x08 + +#define DF_DCFG_CRT_EN (1 << 0) +#define DF_DCFG_HSYNC_EN (1 << 1) +#define DF_DCFG_VSYNC_EN (1 << 2) +#define DF_DCFG_DAC_BL_EN (1 << 3) +#define DF_DCFG_CRT_HSYNC_POL (1 << 8) +#define DF_DCFG_CRT_VSYNC_POL (1 << 9) +#define DF_DCFG_GV_PAL_BYP (1 << 21) + +#define DF_DCFG_CRT_SYNC_SKW_INIT 0x10000 +#define DF_DCFG_CRT_SYNC_SKW_MASK 0x1c000 + +#define DF_DCFG_PWR_SEQ_DLY_INIT 0x80000 +#define DF_DCFG_PWR_SEQ_DLY_MASK 0xe0000 + +#define DF_MISC 0x50 + +#define DF_MISC_GAM_BYPASS (1 << 0) +#define DF_MISC_DAC_PWRDN (1 << 10) +#define DF_MISC_A_PWRDN (1 << 11) + +#define DF_PAR 0x38 +#define DF_PDR 0x40 +#define DF_ALPHA_CONTROL_1 0xD8 +#define DF_VIDEO_REQUEST 0x120 + +#define DF_PANEL_TIM1 0x400 +#define DF_DEFAULT_TFT_PMTIM1 0x0 + +#define DF_PANEL_TIM2 0x408 +#define DF_DEFAULT_TFT_PMTIM2 0x08000000 + +#define DF_FP_PM 0x410 +#define DF_FP_PM_P (1 << 24) + +#define DF_DITHER_CONTROL 0x418 +#define DF_DEFAULT_TFT_DITHCTL 0x00000070 +#define GP_BLT_STATUS 0x44 +#define GP_BS_BLT_BUSY (1 << 0) +#define GP_BS_CB_EMPTY (1 << 4) + +#endif diff --git a/trunk/drivers/video/geode/lxfb_core.c b/trunk/drivers/video/geode/lxfb_core.c new file mode 100644 index 000000000000..5e30b40c8c0f --- /dev/null +++ b/trunk/drivers/video/geode/lxfb_core.c @@ -0,0 +1,621 @@ +/* + * Geode LX framebuffer driver. + * + * Copyright (C) 2007 Advanced Micro Devices, Inc. + * Built from gxfb (which is Copyright (C) 2006 Arcom Control Systems Ltd.) + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "lxfb.h" + +static char *mode_option; +static int noclear, nopanel, nocrt; +static int fbsize; + +/* Most of these modes are sorted in ascending order, but + * since the first entry in this table is the "default" mode, + * we try to make it something sane - 640x480-60 is sane + */ + +const struct fb_videomode geode_modedb[] __initdata = { + /* 640x480-60 */ + { NULL, 60, 640, 480, 39682, 48, 8, 25, 2, 88, 2, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, 0 }, + /* 640x400-70 */ + { NULL, 70, 640, 400, 39770, 40, 8, 28, 5, 96, 2, + FB_SYNC_HOR_HIGH_ACT, + FB_VMODE_NONINTERLACED, 0 }, + /* 640x480-70 */ + { NULL, 70, 640, 480, 35014, 88, 24, 15, 2, 64, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 640x480-72 */ + { NULL, 72, 640, 480, 32102, 120, 16, 20, 1, 40, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, 0 }, + /* 640x480-75 */ + { NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, 0 }, + /* 640x480-85 */ + { NULL, 85, 640, 480, 27780, 80, 56, 25, 1, 56, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, 0 }, + /* 640x480-90 */ + { NULL, 90, 640, 480, 26392, 96, 32, 22, 1, 64, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 640x480-100 */ + { NULL, 100, 640, 480, 23167, 104, 40, 25, 1, 64, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 640x480-60 */ + { NULL, 60, 640, 480, 39682, 48, 16, 25, 10, 88, 2, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, 0 }, + /* 800x600-56 */ + { NULL, 56, 800, 600, 27901, 128, 24, 22, 1, 72, 2, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 800x600-60 */ + { NULL, 60, 800, 600, 25131, 72, 32, 23, 1, 136, 4, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 800x600-70 */ + { NULL, 70, 800, 600, 21873, 120, 40, 21, 4, 80, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 800x600-72 */ + { NULL, 72, 800, 600, 20052, 64, 56, 23, 37, 120, 6, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 800x600-75 */ + { NULL, 75, 800, 600, 20202, 160, 16, 21, 1, 80, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 800x600-85 */ + { NULL, 85, 800, 600, 17790, 152, 32, 27, 1, 64, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 800x600-90 */ + { NULL, 90, 800, 600, 16648, 128, 40, 28, 1, 88, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 800x600-100 */ + { NULL, 100, 800, 600, 14667, 136, 48, 27, 1, 88, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 800x600-60 */ + { NULL, 60, 800, 600, 25131, 88, 40, 23, 1, 128, 4, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, 0 }, + /* 1024x768-60 */ + { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, 0 }, + /* 1024x768-70 */ + { NULL, 70, 1024, 768, 13346, 144, 24, 29, 3, 136, 6, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, 0 }, + /* 1024x768-72 */ + { NULL, 72, 1024, 768, 12702, 168, 56, 29, 4, 112, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1024x768-75 */ + { NULL, 75, 1024, 768, 12703, 176, 16, 28, 1, 96, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1024x768-85 */ + { NULL, 85, 1024, 768, 10581, 208, 48, 36, 1, 96, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1024x768-90 */ + { NULL, 90, 1024, 768, 9981, 176, 64, 37, 1, 112, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1024x768-100 */ + { NULL, 100, 1024, 768, 8825, 184, 72, 42, 1, 112, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1024x768-60 */ + { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, 0 }, + /* 1152x864-60 */ + { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1152x864-70 */ + { NULL, 70, 1152, 864, 10254, 192, 72, 32, 8, 120, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1152x864-72 */ + { NULL, 72, 1152, 864, 9866, 200, 72, 33, 7, 128, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1152x864-75 */ + { NULL, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1152x864-85 */ + { NULL, 85, 1152, 864, 8357, 200, 72, 37, 3, 128, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1152x864-90 */ + { NULL, 90, 1152, 864, 7719, 208, 80, 42, 9, 128, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1152x864-100 */ + { NULL, 100, 1152, 864, 6947, 208, 80, 48, 3, 128, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1152x864-60 */ + { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, 0 }, + /* 1280x1024-60 */ + { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1280x1024-70 */ + { NULL, 70, 1280, 1024, 7719, 224, 88, 38, 6, 136, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1280x1024-72 */ + { NULL, 72, 1280, 1024, 7490, 224, 88, 39, 7, 136, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1280x1024-75 */ + { NULL, 75, 1280, 1024, 7409, 248, 16, 38, 1, 144, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1280x1024-85 */ + { NULL, 85, 1280, 1024, 6351, 224, 64, 44, 1, 160, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1280x1024-90 */ + { NULL, 90, 1280, 1024, 5791, 240, 96, 51, 12, 144, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1280x1024-100 */ + { NULL, 100, 1280, 1024, 5212, 240, 96, 57, 6, 144, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1280x1024-60 */ + { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, 0 }, + /* 1600x1200-60 */ + { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1600x1200-70 */ + { NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1600x1200-72 */ + { NULL, 72, 1600, 1200, 5053, 288, 112, 47, 13, 176, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1600x1200-75 */ + { NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1600x1200-85 */ + { NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1600x1200-90 */ + { NULL, 90, 1600, 1200, 3981, 304, 128, 60, 1, 176, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1600x1200-100 */ + { NULL, 100, 1600, 1200, 3563, 304, 128, 67, 1, 176, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1600x1200-60 */ + { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, 0 }, + /* 1920x1440-60 */ + { NULL, 60, 1920, 1440, 4273, 344, 128, 56, 1, 208, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1920x1440-70 */ + { NULL, 70, 1920, 1440, 3593, 360, 152, 55, 8, 208, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1920x1440-72 */ + { NULL, 72, 1920, 1440, 3472, 360, 152, 68, 4, 208, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1920x1440-75 */ + { NULL, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, + /* 1920x1440-85 */ + { NULL, 85, 1920, 1440, 2929, 368, 152, 68, 1, 216, 3, + 0, FB_VMODE_NONINTERLACED, 0 }, +}; + +static int lxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) +{ + if (var->xres > 1920 || var->yres > 1440) + return -EINVAL; + + if (var->bits_per_pixel == 32) { + var->red.offset = 16; var->red.length = 8; + var->green.offset = 8; var->green.length = 8; + var->blue.offset = 0; var->blue.length = 8; + } else if (var->bits_per_pixel == 16) { + var->red.offset = 11; var->red.length = 5; + var->green.offset = 5; var->green.length = 6; + var->blue.offset = 0; var->blue.length = 5; + } else if (var->bits_per_pixel == 8) { + var->red.offset = 0; var->red.length = 8; + var->green.offset = 0; var->green.length = 8; + var->blue.offset = 0; var->blue.length = 8; + } else + return -EINVAL; + + var->transp.offset = 0; var->transp.length = 0; + + /* Enough video memory? */ + if ((lx_get_pitch(var->xres, var->bits_per_pixel) * var->yres) + > info->fix.smem_len) + return -EINVAL; + + return 0; +} + +static int lxfb_set_par(struct fb_info *info) +{ + if (info->var.bits_per_pixel > 8) { + info->fix.visual = FB_VISUAL_TRUECOLOR; + fb_dealloc_cmap(&info->cmap); + } else { + info->fix.visual = FB_VISUAL_PSEUDOCOLOR; + fb_alloc_cmap(&info->cmap, 1<var.bits_per_pixel, 0); + } + + info->fix.line_length = lx_get_pitch(info->var.xres, + info->var.bits_per_pixel); + + lx_set_mode(info); + return 0; +} + +static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf) +{ + chan &= 0xffff; + chan >>= 16 - bf->length; + return chan << bf->offset; +} + +static int lxfb_setcolreg(unsigned regno, unsigned red, unsigned green, + unsigned blue, unsigned transp, + struct fb_info *info) +{ + if (info->var.grayscale) { + /* grayscale = 0.30*R + 0.59*G + 0.11*B */ + red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8; + } + + /* Truecolor has hardware independent palette */ + if (info->fix.visual == FB_VISUAL_TRUECOLOR) { + u32 *pal = info->pseudo_palette; + u32 v; + + if (regno >= 16) + return -EINVAL; + + v = chan_to_field(red, &info->var.red); + v |= chan_to_field(green, &info->var.green); + v |= chan_to_field(blue, &info->var.blue); + + pal[regno] = v; + } else { + if (regno >= 256) + return -EINVAL; + + lx_set_palette_reg(info, regno, red, green, blue); + } + + return 0; +} + +static int lxfb_blank(int blank_mode, struct fb_info *info) +{ + return lx_blank_display(info, blank_mode); +} + + +static int __init lxfb_map_video_memory(struct fb_info *info, + struct pci_dev *dev) +{ + struct lxfb_par *par = info->par; + int ret; + + ret = pci_enable_device(dev); + + if (ret) + return ret; + + ret = pci_request_region(dev, 0, "lxfb-framebuffer"); + + if (ret) + return ret; + + ret = pci_request_region(dev, 1, "lxfb-gp"); + + if (ret) + return ret; + + ret = pci_request_region(dev, 2, "lxfb-vg"); + + if (ret) + return ret; + + ret = pci_request_region(dev, 3, "lxfb-vip"); + + if (ret) + return ret; + + info->fix.smem_start = pci_resource_start(dev, 0); + info->fix.smem_len = fbsize ? fbsize : lx_framebuffer_size(); + + info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len); + + ret = -ENOMEM; + + if (info->screen_base == NULL) + return ret; + + par->gp_regs = ioremap(pci_resource_start(dev, 1), + pci_resource_len(dev, 1)); + + if (par->gp_regs == NULL) + return ret; + + par->dc_regs = ioremap(pci_resource_start(dev, 2), + pci_resource_len(dev, 2)); + + if (par->dc_regs == NULL) + return ret; + + par->df_regs = ioremap(pci_resource_start(dev, 3), + pci_resource_len(dev, 3)); + + if (par->df_regs == NULL) + return ret; + + writel(DC_UNLOCK_CODE, par->dc_regs + DC_UNLOCK); + + writel(info->fix.smem_start & 0xFF000000, + par->dc_regs + DC_PHY_MEM_OFFSET); + + writel(0, par->dc_regs + DC_UNLOCK); + + dev_info(&dev->dev, "%d KB of video memory at 0x%lx\n", + info->fix.smem_len / 1024, info->fix.smem_start); + + return 0; +} + +static struct fb_ops lxfb_ops = { + .owner = THIS_MODULE, + .fb_check_var = lxfb_check_var, + .fb_set_par = lxfb_set_par, + .fb_setcolreg = lxfb_setcolreg, + .fb_blank = lxfb_blank, + /* No HW acceleration for now. */ + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, +}; + +static struct fb_info * __init lxfb_init_fbinfo(struct device *dev) +{ + struct lxfb_par *par; + struct fb_info *info; + + /* Alloc enough space for the pseudo palette. */ + info = framebuffer_alloc(sizeof(struct lxfb_par) + sizeof(u32) * 16, + dev); + if (!info) + return NULL; + + par = info->par; + + strcpy(info->fix.id, "Geode LX"); + + info->fix.type = FB_TYPE_PACKED_PIXELS; + info->fix.type_aux = 0; + info->fix.xpanstep = 0; + info->fix.ypanstep = 0; + info->fix.ywrapstep = 0; + info->fix.accel = FB_ACCEL_NONE; + + info->var.nonstd = 0; + info->var.activate = FB_ACTIVATE_NOW; + info->var.height = -1; + info->var.width = -1; + info->var.accel_flags = 0; + info->var.vmode = FB_VMODE_NONINTERLACED; + + info->fbops = &lxfb_ops; + info->flags = FBINFO_DEFAULT; + info->node = -1; + + info->pseudo_palette = (void *)par + sizeof(struct lxfb_par); + + info->var.grayscale = 0; + + return info; +} + +static int __init lxfb_probe(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + struct lxfb_par *par; + struct fb_info *info; + int ret; + + struct fb_videomode *modedb_ptr; + int modedb_size; + + info = lxfb_init_fbinfo(&pdev->dev); + + if (info == NULL) + return -ENOMEM; + + par = info->par; + + ret = lxfb_map_video_memory(info, pdev); + + if (ret < 0) { + dev_err(&pdev->dev, + "failed to map frame buffer or controller registers\n"); + goto err; + } + + /* Set up the desired outputs */ + + par->output = 0; + par->output |= (nopanel) ? 0 : OUTPUT_PANEL; + par->output |= (nocrt) ? 0 : OUTPUT_CRT; + + /* Set up the mode database */ + + modedb_ptr = (struct fb_videomode *) geode_modedb; + modedb_size = ARRAY_SIZE(geode_modedb); + + ret = fb_find_mode(&info->var, info, mode_option, + modedb_ptr, modedb_size, NULL, 16); + + if (ret == 0 || ret == 4) { + dev_err(&pdev->dev, "could not find valid video mode\n"); + ret = -EINVAL; + goto err; + } + + /* Clear the screen of garbage, unless noclear was specified, + * in which case we assume the user knows what he is doing */ + + if (!noclear) + memset_io(info->screen_base, 0, info->fix.smem_len); + + /* Set the mode */ + + lxfb_check_var(&info->var, info); + lxfb_set_par(info); + + if (register_framebuffer(info) < 0) { + ret = -EINVAL; + goto err; + } + pci_set_drvdata(pdev, info); + printk(KERN_INFO "fb%d: %s frame buffer device\n", + info->node, info->fix.id); + + return 0; + +err: + if (info->screen_base) { + iounmap(info->screen_base); + pci_release_region(pdev, 0); + } + if (par->gp_regs) { + iounmap(par->gp_regs); + pci_release_region(pdev, 1); + } + if (par->dc_regs) { + iounmap(par->dc_regs); + pci_release_region(pdev, 2); + } + if (par->df_regs) { + iounmap(par->df_regs); + pci_release_region(pdev, 3); + } + + if (info) + framebuffer_release(info); + + return ret; +} + +static void lxfb_remove(struct pci_dev *pdev) +{ + struct fb_info *info = pci_get_drvdata(pdev); + struct lxfb_par *par = info->par; + + unregister_framebuffer(info); + + iounmap(info->screen_base); + pci_release_region(pdev, 0); + + iounmap(par->gp_regs); + pci_release_region(pdev, 1); + + iounmap(par->dc_regs); + pci_release_region(pdev, 2); + + iounmap(par->df_regs); + pci_release_region(pdev, 3); + + pci_set_drvdata(pdev, NULL); + framebuffer_release(info); +} + +static struct pci_device_id lxfb_id_table[] = { + { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_VIDEO) }, + { 0, } +}; + +MODULE_DEVICE_TABLE(pci, lxfb_id_table); + +static struct pci_driver lxfb_driver = { + .name = "lxfb", + .id_table = lxfb_id_table, + .probe = lxfb_probe, + .remove = lxfb_remove, +}; + +#ifndef MODULE +static int __init lxfb_setup(char *options) +{ + char *opt; + + if (!options || !*options) + return 0; + + while (1) { + char *opt = strsep(&options, ","); + + if (opt == NULL) + break; + + if (!*opt) + continue; + + if (!strncmp(opt, "fbsize:", 7)) + fbsize = simple_strtoul(opt+7, NULL, 0); + else if (!strcmp(opt, "noclear")) + noclear = 1; + else if (!strcmp(opt, "nopanel")) + nopanel = 1; + else if (!strcmp(opt, "nocrt")) + nocrt = 1; + else + mode_option = opt; + } + + return 0; +} +#endif + +static int __init lxfb_init(void) +{ +#ifndef MODULE + char *option = NULL; + + if (fb_get_options("lxfb", &option)) + return -ENODEV; + + lxfb_setup(option); +#endif + return pci_register_driver(&lxfb_driver); +} +static void __exit lxfb_cleanup(void) +{ + pci_unregister_driver(&lxfb_driver); +} + +module_init(lxfb_init); +module_exit(lxfb_cleanup); + +module_param(mode_option, charp, 0); +MODULE_PARM_DESC(mode_option, "video mode (x[-][@])"); + +module_param(fbsize, int, 0); +MODULE_PARM_DESC(fbsize, "video memory size"); + +MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode LX"); +MODULE_LICENSE("GPL"); diff --git a/trunk/drivers/video/geode/lxfb_ops.c b/trunk/drivers/video/geode/lxfb_ops.c new file mode 100644 index 000000000000..4fbc99be96ef --- /dev/null +++ b/trunk/drivers/video/geode/lxfb_ops.c @@ -0,0 +1,536 @@ +/* Geode LX framebuffer driver + * + * Copyright (C) 2006-2007, Advanced Micro Devices,Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include +#include +#include +#include +#include + +#include "lxfb.h" + +/* TODO + * Support panel scaling + * Add acceleration + * Add support for interlacing (TV out) + * Support compression + */ + +/* This is the complete list of PLL frequencies that we can set - + * we will choose the closest match to the incoming clock. + * freq is the frequency of the dotclock * 1000 (for example, + * 24823 = 24.983 Mhz). + * pllval is the corresponding PLL value +*/ + +static const struct { + unsigned int pllval; + unsigned int freq; +} pll_table[] = { + { 0x000031AC, 24923 }, + { 0x0000215D, 25175 }, + { 0x00001087, 27000 }, + { 0x0000216C, 28322 }, + { 0x0000218D, 28560 }, + { 0x000010C9, 31200 }, + { 0x00003147, 31500 }, + { 0x000010A7, 33032 }, + { 0x00002159, 35112 }, + { 0x00004249, 35500 }, + { 0x00000057, 36000 }, + { 0x0000219A, 37889 }, + { 0x00002158, 39168 }, + { 0x00000045, 40000 }, + { 0x00000089, 43163 }, + { 0x000010E7, 44900 }, + { 0x00002136, 45720 }, + { 0x00003207, 49500 }, + { 0x00002187, 50000 }, + { 0x00004286, 56250 }, + { 0x000010E5, 60065 }, + { 0x00004214, 65000 }, + { 0x00001105, 68179 }, + { 0x000031E4, 74250 }, + { 0x00003183, 75000 }, + { 0x00004284, 78750 }, + { 0x00001104, 81600 }, + { 0x00006363, 94500 }, + { 0x00005303, 97520 }, + { 0x00002183, 100187 }, + { 0x00002122, 101420 }, + { 0x00001081, 108000 }, + { 0x00006201, 113310 }, + { 0x00000041, 119650 }, + { 0x000041A1, 129600 }, + { 0x00002182, 133500 }, + { 0x000041B1, 135000 }, + { 0x00000051, 144000 }, + { 0x000041E1, 148500 }, + { 0x000062D1, 157500 }, + { 0x000031A1, 162000 }, + { 0x00000061, 169203 }, + { 0x00004231, 172800 }, + { 0x00002151, 175500 }, + { 0x000052E1, 189000 }, + { 0x00000071, 192000 }, + { 0x00003201, 198000 }, + { 0x00004291, 202500 }, + { 0x00001101, 204750 }, + { 0x00007481, 218250 }, + { 0x00004170, 229500 }, + { 0x00006210, 234000 }, + { 0x00003140, 251182 }, + { 0x00006250, 261000 }, + { 0x000041C0, 278400 }, + { 0x00005220, 280640 }, + { 0x00000050, 288000 }, + { 0x000041E0, 297000 }, + { 0x00002130, 320207 } +}; + + +static void lx_set_dotpll(u32 pllval) +{ + u32 dotpll_lo, dotpll_hi; + int i; + + rdmsr(MSR_LX_GLCP_DOTPLL, dotpll_lo, dotpll_hi); + + if ((dotpll_lo & GLCP_DOTPLL_LOCK) && (dotpll_hi == pllval)) + return; + + dotpll_hi = pllval; + dotpll_lo &= ~(GLCP_DOTPLL_BYPASS | GLCP_DOTPLL_HALFPIX); + dotpll_lo |= GLCP_DOTPLL_RESET; + + wrmsr(MSR_LX_GLCP_DOTPLL, dotpll_lo, dotpll_hi); + + /* Wait 100us for the PLL to lock */ + + udelay(100); + + /* Now, loop for the lock bit */ + + for (i = 0; i < 1000; i++) { + rdmsr(MSR_LX_GLCP_DOTPLL, dotpll_lo, dotpll_hi); + if (dotpll_lo & GLCP_DOTPLL_LOCK) + break; + } + + /* Clear the reset bit */ + + dotpll_lo &= ~GLCP_DOTPLL_RESET; + wrmsr(MSR_LX_GLCP_DOTPLL, dotpll_lo, dotpll_hi); +} + +/* Set the clock based on the frequency specified by the current mode */ + +static void lx_set_clock(struct fb_info *info) +{ + unsigned int diff, min, best = 0; + unsigned int freq, i; + + freq = (unsigned int) (0x3b9aca00 / info->var.pixclock); + + min = abs(pll_table[0].freq - freq); + + for (i = 0; i < ARRAY_SIZE(pll_table); i++) { + diff = abs(pll_table[i].freq - freq); + if (diff < min) { + min = diff; + best = i; + } + } + + lx_set_dotpll(pll_table[best].pllval & 0x7FFF); +} + +static void lx_graphics_disable(struct fb_info *info) +{ + struct lxfb_par *par = info->par; + unsigned int val, gcfg; + + /* Note: This assumes that the video is in a quitet state */ + + writel(0, par->df_regs + DF_ALPHA_CONTROL_1); + writel(0, par->df_regs + DF_ALPHA_CONTROL_1 + 32); + writel(0, par->df_regs + DF_ALPHA_CONTROL_1 + 64); + + /* Turn off the VGA and video enable */ + val = readl (par->dc_regs + DC_GENERAL_CFG) & + ~(DC_GCFG_VGAE | DC_GCFG_VIDE); + + writel(val, par->dc_regs + DC_GENERAL_CFG); + + val = readl(par->df_regs + DF_VIDEO_CFG) & ~DF_VCFG_VID_EN; + writel(val, par->df_regs + DF_VIDEO_CFG); + + writel( DC_IRQ_MASK | DC_VSYNC_IRQ_MASK | + DC_IRQ_STATUS | DC_VSYNC_IRQ_STATUS, + par->dc_regs + DC_IRQ); + + val = readl(par->dc_regs + DC_GENLCK_CTRL) & ~DC_GENLCK_ENABLE; + writel(val, par->dc_regs + DC_GENLCK_CTRL); + + val = readl(par->dc_regs + DC_COLOR_KEY) & ~DC_CLR_KEY_ENABLE; + writel(val & ~DC_CLR_KEY_ENABLE, par->dc_regs + DC_COLOR_KEY); + + /* We don't actually blank the panel, due to the long latency + involved with bringing it back */ + + val = readl(par->df_regs + DF_MISC) | DF_MISC_DAC_PWRDN; + writel(val, par->df_regs + DF_MISC); + + /* Turn off the display */ + + val = readl(par->df_regs + DF_DISPLAY_CFG); + writel(val & ~(DF_DCFG_CRT_EN | DF_DCFG_HSYNC_EN | DF_DCFG_VSYNC_EN | + DF_DCFG_DAC_BL_EN), par->df_regs + DF_DISPLAY_CFG); + + gcfg = readl(par->dc_regs + DC_GENERAL_CFG); + gcfg &= ~(DC_GCFG_CMPE | DC_GCFG_DECE); + writel(gcfg, par->dc_regs + DC_GENERAL_CFG); + + /* Turn off the TGEN */ + val = readl(par->dc_regs + DC_DISPLAY_CFG); + val &= ~DC_DCFG_TGEN; + writel(val, par->dc_regs + DC_DISPLAY_CFG); + + /* Wait 1000 usecs to ensure that the TGEN is clear */ + udelay(1000); + + /* Turn off the FIFO loader */ + + gcfg &= ~DC_GCFG_DFLE; + writel(gcfg, par->dc_regs + DC_GENERAL_CFG); + + /* Lastly, wait for the GP to go idle */ + + do { + val = readl(par->gp_regs + GP_BLT_STATUS); + } while ((val & GP_BS_BLT_BUSY) || !(val & GP_BS_CB_EMPTY)); +} + +static void lx_graphics_enable(struct fb_info *info) +{ + struct lxfb_par *par = info->par; + u32 temp, config; + + /* Set the video request register */ + writel(0, par->df_regs + DF_VIDEO_REQUEST); + + /* Set up the polarities */ + + config = readl(par->df_regs + DF_DISPLAY_CFG); + + config &= ~(DF_DCFG_CRT_SYNC_SKW_MASK | DF_DCFG_PWR_SEQ_DLY_MASK | + DF_DCFG_CRT_HSYNC_POL | DF_DCFG_CRT_VSYNC_POL); + + config |= (DF_DCFG_CRT_SYNC_SKW_INIT | DF_DCFG_PWR_SEQ_DLY_INIT | + DF_DCFG_GV_PAL_BYP); + + if (info->var.sync & FB_SYNC_HOR_HIGH_ACT) + config |= DF_DCFG_CRT_HSYNC_POL; + + if (info->var.sync & FB_SYNC_VERT_HIGH_ACT) + config |= DF_DCFG_CRT_VSYNC_POL; + + if (par->output & OUTPUT_PANEL) { + u32 msrlo, msrhi; + + writel(DF_DEFAULT_TFT_PMTIM1, + par->df_regs + DF_PANEL_TIM1); + writel(DF_DEFAULT_TFT_PMTIM2, + par->df_regs + DF_PANEL_TIM2); + writel(DF_DEFAULT_TFT_DITHCTL, + par->df_regs + DF_DITHER_CONTROL); + + msrlo = DF_DEFAULT_TFT_PAD_SEL_LOW; + msrhi = DF_DEFAULT_TFT_PAD_SEL_HIGH; + + wrmsr(MSR_LX_DF_PADSEL, msrlo, msrhi); + } + + if (par->output & OUTPUT_CRT) { + config |= DF_DCFG_CRT_EN | DF_DCFG_HSYNC_EN | + DF_DCFG_VSYNC_EN | DF_DCFG_DAC_BL_EN; + } + + writel(config, par->df_regs + DF_DISPLAY_CFG); + + /* Turn the CRT dacs back on */ + + if (par->output & OUTPUT_CRT) { + temp = readl(par->df_regs + DF_MISC); + temp &= ~(DF_MISC_DAC_PWRDN | DF_MISC_A_PWRDN); + writel(temp, par->df_regs + DF_MISC); + } + + /* Turn the panel on (if it isn't already) */ + + if (par->output & OUTPUT_PANEL) { + temp = readl(par->df_regs + DF_FP_PM); + + if (!(temp & 0x09)) + writel(temp | DF_FP_PM_P, par->df_regs + DF_FP_PM); + } + + temp = readl(par->df_regs + DF_MISC); + temp = readl(par->df_regs + DF_DISPLAY_CFG); +} + +unsigned int lx_framebuffer_size(void) +{ + unsigned int val; + + /* The frame buffer size is reported by a VSM in VSA II */ + /* Virtual Register Class = 0x02 */ + /* VG_MEM_SIZE (1MB units) = 0x00 */ + + outw(0xFC53, 0xAC1C); + outw(0x0200, 0xAC1C); + + val = (unsigned int)(inw(0xAC1E)) & 0xFE; + return (val << 20); +} + +void lx_set_mode(struct fb_info *info) +{ + struct lxfb_par *par = info->par; + u64 msrval; + + unsigned int max, dv, val, size; + + unsigned int gcfg, dcfg; + int hactive, hblankstart, hsyncstart, hsyncend, hblankend, htotal; + int vactive, vblankstart, vsyncstart, vsyncend, vblankend, vtotal; + + /* Unlock the DC registers */ + writel(DC_UNLOCK_CODE, par->dc_regs + DC_UNLOCK); + + lx_graphics_disable(info); + + lx_set_clock(info); + + /* Set output mode */ + + rdmsrl(MSR_LX_DF_GLCONFIG, msrval); + msrval &= ~DF_CONFIG_OUTPUT_MASK; + + if (par->output & OUTPUT_PANEL) { + msrval |= DF_OUTPUT_PANEL; + + if (par->output & OUTPUT_CRT) + msrval |= DF_SIMULTANEOUS_CRT_AND_FP; + else + msrval &= ~DF_SIMULTANEOUS_CRT_AND_FP; + } else { + msrval |= DF_OUTPUT_CRT; + } + + wrmsrl(MSR_LX_DF_GLCONFIG, msrval); + + /* Clear the various buffers */ + /* FIXME: Adjust for panning here */ + + writel(0, par->dc_regs + DC_FB_START); + writel(0, par->dc_regs + DC_CB_START); + writel(0, par->dc_regs + DC_CURSOR_START); + + /* FIXME: Add support for interlacing */ + /* FIXME: Add support for scaling */ + + val = readl(par->dc_regs + DC_GENLCK_CTRL); + val &= ~(DC_GC_ALPHA_FLICK_ENABLE | + DC_GC_FLICKER_FILTER_ENABLE | DC_GC_FLICKER_FILTER_MASK); + + /* Default scaling params */ + + writel((0x4000 << 16) | 0x4000, par->dc_regs + DC_GFX_SCALE); + writel(0, par->dc_regs + DC_IRQ_FILT_CTL); + writel(val, par->dc_regs + DC_GENLCK_CTRL); + + /* FIXME: Support compression */ + + if (info->fix.line_length > 4096) + dv = DC_DV_LINE_SIZE_8192; + else if (info->fix.line_length > 2048) + dv = DC_DV_LINE_SIZE_4096; + else if (info->fix.line_length > 1024) + dv = DC_DV_LINE_SIZE_2048; + else + dv = DC_DV_LINE_SIZE_1024; + + max = info->fix.line_length * info->var.yres; + max = (max + 0x3FF) & 0xFFFFFC00; + + writel(max | DC_DV_TOP_ENABLE, par->dc_regs + DC_DV_TOP); + + val = readl(par->dc_regs + DC_DV_CTL) & ~DC_DV_LINE_SIZE_MASK; + writel(val | dv, par->dc_regs + DC_DV_CTL); + + size = info->var.xres * (info->var.bits_per_pixel >> 3); + + writel(info->fix.line_length >> 3, par->dc_regs + DC_GRAPHICS_PITCH); + writel((size + 7) >> 3, par->dc_regs + DC_LINE_SIZE); + + /* Set default watermark values */ + + rdmsrl(MSR_LX_DC_SPARE, msrval); + + msrval &= ~(DC_SPARE_DISABLE_CFIFO_HGO | DC_SPARE_VFIFO_ARB_SELECT | + DC_SPARE_LOAD_WM_LPEN_MASK | DC_SPARE_WM_LPEN_OVRD | + DC_SPARE_DISABLE_INIT_VID_PRI | DC_SPARE_DISABLE_VFIFO_WM); + msrval |= DC_SPARE_DISABLE_VFIFO_WM | DC_SPARE_DISABLE_INIT_VID_PRI; + wrmsrl(MSR_LX_DC_SPARE, msrval); + + gcfg = DC_GCFG_DFLE; /* Display fifo enable */ + gcfg |= 0xB600; /* Set default priority */ + gcfg |= DC_GCFG_FDTY; /* Set the frame dirty mode */ + + dcfg = DC_DCFG_VDEN; /* Enable video data */ + dcfg |= DC_DCFG_GDEN; /* Enable graphics */ + dcfg |= DC_DCFG_TGEN; /* Turn on the timing generator */ + dcfg |= DC_DCFG_TRUP; /* Update timings immediately */ + dcfg |= DC_DCFG_PALB; /* Palette bypass in > 8 bpp modes */ + dcfg |= DC_DCFG_VISL; + dcfg |= DC_DCFG_DCEN; /* Always center the display */ + + /* Set the current BPP mode */ + + switch (info->var.bits_per_pixel) { + case 8: + dcfg |= DC_DCFG_DISP_MODE_8BPP; + break; + + case 16: + dcfg |= DC_DCFG_DISP_MODE_16BPP | DC_DCFG_16BPP; + break; + + case 32: + case 24: + dcfg |= DC_DCFG_DISP_MODE_24BPP; + break; + } + + /* Now - set up the timings */ + + hactive = info->var.xres; + hblankstart = hactive; + hsyncstart = hblankstart + info->var.right_margin; + hsyncend = hsyncstart + info->var.hsync_len; + hblankend = hsyncend + info->var.left_margin; + htotal = hblankend; + + vactive = info->var.yres; + vblankstart = vactive; + vsyncstart = vblankstart + info->var.lower_margin; + vsyncend = vsyncstart + info->var.vsync_len; + vblankend = vsyncend + info->var.upper_margin; + vtotal = vblankend; + + writel((hactive - 1) | ((htotal - 1) << 16), + par->dc_regs + DC_H_ACTIVE_TIMING); + writel((hblankstart - 1) | ((hblankend - 1) << 16), + par->dc_regs + DC_H_BLANK_TIMING); + writel((hsyncstart - 1) | ((hsyncend - 1) << 16), + par->dc_regs + DC_H_SYNC_TIMING); + + writel((vactive - 1) | ((vtotal - 1) << 16), + par->dc_regs + DC_V_ACTIVE_TIMING); + + writel((vblankstart - 1) | ((vblankend - 1) << 16), + par->dc_regs + DC_V_BLANK_TIMING); + + writel((vsyncstart - 1) | ((vsyncend - 1) << 16), + par->dc_regs + DC_V_SYNC_TIMING); + + writel( (info->var.xres - 1) << 16 | (info->var.yres - 1), + par->dc_regs + DC_FB_ACTIVE); + + /* And re-enable the graphics output */ + lx_graphics_enable(info); + + /* Write the two main configuration registers */ + writel(dcfg, par->dc_regs + DC_DISPLAY_CFG); + writel(0, par->dc_regs + DC_ARB_CFG); + writel(gcfg, par->dc_regs + DC_GENERAL_CFG); + + /* Lock the DC registers */ + writel(0, par->dc_regs + DC_UNLOCK); +} + +void lx_set_palette_reg(struct fb_info *info, unsigned regno, + unsigned red, unsigned green, unsigned blue) +{ + struct lxfb_par *par = info->par; + int val; + + /* Hardware palette is in RGB 8-8-8 format. */ + + val = (red << 8) & 0xff0000; + val |= (green) & 0x00ff00; + val |= (blue >> 8) & 0x0000ff; + + writel(regno, par->dc_regs + DC_PAL_ADDRESS); + writel(val, par->dc_regs + DC_PAL_DATA); +} + +int lx_blank_display(struct fb_info *info, int blank_mode) +{ + struct lxfb_par *par = info->par; + u32 dcfg, fp_pm; + int blank, hsync, vsync; + + /* CRT power saving modes. */ + switch (blank_mode) { + case FB_BLANK_UNBLANK: + blank = 0; hsync = 1; vsync = 1; + break; + case FB_BLANK_NORMAL: + blank = 1; hsync = 1; vsync = 1; + break; + case FB_BLANK_VSYNC_SUSPEND: + blank = 1; hsync = 1; vsync = 0; + break; + case FB_BLANK_HSYNC_SUSPEND: + blank = 1; hsync = 0; vsync = 1; + break; + case FB_BLANK_POWERDOWN: + blank = 1; hsync = 0; vsync = 0; + break; + default: + return -EINVAL; + } + + dcfg = readl(par->df_regs + DF_DISPLAY_CFG); + dcfg &= ~(DF_DCFG_DAC_BL_EN + | DF_DCFG_HSYNC_EN | DF_DCFG_VSYNC_EN); + if (!blank) + dcfg |= DF_DCFG_DAC_BL_EN; + if (hsync) + dcfg |= DF_DCFG_HSYNC_EN; + if (vsync) + dcfg |= DF_DCFG_VSYNC_EN; + writel(dcfg, par->df_regs + DF_DISPLAY_CFG); + + /* Power on/off flat panel */ + + if (par->output & OUTPUT_PANEL) { + fp_pm = readl(par->df_regs + DF_FP_PM); + if (blank_mode == FB_BLANK_POWERDOWN) + fp_pm &= ~DF_FP_PM_P; + else + fp_pm |= DF_FP_PM_P; + writel(fp_pm, par->df_regs + DF_FP_PM); + } + + return 0; +} diff --git a/trunk/drivers/video/s3c2410fb.c b/trunk/drivers/video/s3c2410fb.c index ed3426062a8b..8a4c6470d799 100644 --- a/trunk/drivers/video/s3c2410fb.c +++ b/trunk/drivers/video/s3c2410fb.c @@ -474,6 +474,7 @@ static void schedule_palette_update(struct s3c2410fb_info *fbi, { unsigned long flags; unsigned long irqen; + void __iomem *regs = fbi->io; local_irq_save(flags); @@ -483,9 +484,9 @@ static void schedule_palette_update(struct s3c2410fb_info *fbi, fbi->palette_ready = 1; /* enable IRQ */ - irqen = readl(S3C2410_LCDINTMSK); + irqen = readl(regs + S3C2410_LCDINTMSK); irqen &= ~S3C2410_LCDINT_FRSYNC; - writel(irqen, S3C2410_LCDINTMSK); + writel(irqen, regs + S3C2410_LCDINTMSK); } local_irq_restore(flags); @@ -680,6 +681,7 @@ static inline void modify_gpio(void __iomem *reg, static int s3c2410fb_init_registers(struct s3c2410fb_info *fbi) { unsigned long flags; + void __iomem *regs = fbi->io; /* Initialise LCD with values from haret */ @@ -694,25 +696,25 @@ static int s3c2410fb_init_registers(struct s3c2410fb_info *fbi) local_irq_restore(flags); - writel(fbi->regs.lcdcon1, S3C2410_LCDCON1); - writel(fbi->regs.lcdcon2, S3C2410_LCDCON2); - writel(fbi->regs.lcdcon3, S3C2410_LCDCON3); - writel(fbi->regs.lcdcon4, S3C2410_LCDCON4); - writel(fbi->regs.lcdcon5, S3C2410_LCDCON5); + writel(fbi->regs.lcdcon1, regs + S3C2410_LCDCON1); + writel(fbi->regs.lcdcon2, regs + S3C2410_LCDCON2); + writel(fbi->regs.lcdcon3, regs + S3C2410_LCDCON3); + writel(fbi->regs.lcdcon4, regs + S3C2410_LCDCON4); + writel(fbi->regs.lcdcon5, regs + S3C2410_LCDCON5); s3c2410fb_set_lcdaddr(fbi); dprintk("LPCSEL = 0x%08lx\n", mach_info->lpcsel); - writel(mach_info->lpcsel, S3C2410_LPCSEL); + writel(mach_info->lpcsel, regs + S3C2410_LPCSEL); - dprintk("replacing TPAL %08x\n", readl(S3C2410_TPAL)); + dprintk("replacing TPAL %08x\n", readl(regs + S3C2410_TPAL)); /* ensure temporary palette disabled */ - writel(0x00, S3C2410_TPAL); + writel(0x00, regs + S3C2410_TPAL); /* Enable video by setting the ENVID bit to 1 */ fbi->regs.lcdcon1 |= S3C2410_LCDCON1_ENVID; - writel(fbi->regs.lcdcon1, S3C2410_LCDCON1); + writel(fbi->regs.lcdcon1, regs + S3C2410_LCDCON1); return 0; } @@ -720,6 +722,7 @@ static void s3c2410fb_write_palette(struct s3c2410fb_info *fbi) { unsigned int i; unsigned long ent; + void __iomem *regs = fbi->io; fbi->palette_ready = 0; @@ -727,14 +730,14 @@ static void s3c2410fb_write_palette(struct s3c2410fb_info *fbi) if ((ent = fbi->palette_buffer[i]) == PALETTE_BUFF_CLEAR) continue; - writel(ent, S3C2410_TFTPAL(i)); + writel(ent, regs + S3C2410_TFTPAL(i)); /* it seems the only way to know exactly * if the palette wrote ok, is to check * to see if the value verifies ok */ - if (readw(S3C2410_TFTPAL(i)) == ent) + if (readw(regs + S3C2410_TFTPAL(i)) == ent) fbi->palette_buffer[i] = PALETTE_BUFF_CLEAR; else fbi->palette_ready = 1; /* retry */ @@ -744,14 +747,15 @@ static void s3c2410fb_write_palette(struct s3c2410fb_info *fbi) static irqreturn_t s3c2410fb_irq(int irq, void *dev_id) { struct s3c2410fb_info *fbi = dev_id; - unsigned long lcdirq = readl(S3C2410_LCDINTPND); + void __iomem *regs = fbi->io; + unsigned long lcdirq = readl(regs + S3C2410_LCDINTPND); if (lcdirq & S3C2410_LCDINT_FRSYNC) { if (fbi->palette_ready) s3c2410fb_write_palette(fbi); - writel(S3C2410_LCDINT_FRSYNC, S3C2410_LCDINTPND); - writel(S3C2410_LCDINT_FRSYNC, S3C2410_LCDSRCPND); + writel(S3C2410_LCDINT_FRSYNC, regs + S3C2410_LCDINTPND); + writel(S3C2410_LCDINT_FRSYNC, regs + S3C2410_LCDSRCPND); } return IRQ_HANDLED; @@ -764,9 +768,11 @@ static int __init s3c2410fb_probe(struct platform_device *pdev) struct s3c2410fb_info *info; struct fb_info *fbinfo; struct s3c2410fb_hw *mregs; + struct resource *res; int ret; int irq; int i; + int size; u32 lcdcon1; mach_info = pdev->dev.platform_data; @@ -788,11 +794,32 @@ static int __init s3c2410fb_probe(struct platform_device *pdev) return -ENOMEM; } - info = fbinfo->par; info->fb = fbinfo; info->dev = &pdev->dev; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (res == NULL) { + dev_err(&pdev->dev, "failed to get memory registersn"); + ret = -ENXIO; + goto dealloc_fb; + } + + size = (res->end - res->start)+1; + info->mem = request_mem_region(res->start, size, pdev->name); + if (info->mem == NULL) { + dev_err(&pdev->dev, "failed to get memory region\n"); + ret = -ENOENT; + goto dealloc_fb; + } + + info->io = ioremap(res->start, size); + if (info->io == NULL) { + dev_err(&pdev->dev, "ioremap() of registers failed\n"); + ret = -ENXIO; + goto release_mem; + } + platform_set_drvdata(pdev, fbinfo); dprintk("devinit\n"); @@ -803,8 +830,8 @@ static int __init s3c2410fb_probe(struct platform_device *pdev) /* Stop the video and unset ENVID if set */ info->regs.lcdcon1 &= ~S3C2410_LCDCON1_ENVID; - lcdcon1 = readl(S3C2410_LCDCON1); - writel(lcdcon1 & ~S3C2410_LCDCON1_ENVID, S3C2410_LCDCON1); + lcdcon1 = readl(info->io + S3C2410_LCDCON1); + writel(lcdcon1 & ~S3C2410_LCDCON1_ENVID, info->io + S3C2410_LCDCON1); info->mach_info = pdev->dev.platform_data; @@ -855,19 +882,11 @@ static int __init s3c2410fb_probe(struct platform_device *pdev) for (i = 0; i < 256; i++) info->palette_buffer[i] = PALETTE_BUFF_CLEAR; - if (!request_mem_region((unsigned long)S3C24XX_VA_LCD, SZ_1M, "s3c2410-lcd")) { - ret = -EBUSY; - goto dealloc_fb; - } - - - dprintk("got LCD region\n"); - ret = request_irq(irq, s3c2410fb_irq, IRQF_DISABLED, pdev->name, info); if (ret) { dev_err(&pdev->dev, "cannot get irq %d - err %d\n", irq, ret); ret = -EBUSY; - goto release_mem; + goto release_regs; } info->clk = clk_get(NULL, "lcd"); @@ -889,6 +908,7 @@ static int __init s3c2410fb_probe(struct platform_device *pdev) ret = -ENOMEM; goto release_clock; } + dprintk("got video memory\n"); ret = s3c2410fb_init_registers(info); @@ -916,8 +936,11 @@ static int __init s3c2410fb_probe(struct platform_device *pdev) clk_put(info->clk); release_irq: free_irq(irq,info); +release_regs: + iounmap(info->io); release_mem: - release_mem_region((unsigned long)S3C24XX_VA_LCD, S3C24XX_SZ_LCD); + release_resource(info->mem); + kfree(info->mem); dealloc_fb: framebuffer_release(fbinfo); return ret; @@ -935,7 +958,7 @@ static void s3c2410fb_stop_lcd(struct s3c2410fb_info *fbi) local_irq_save(flags); fbi->regs.lcdcon1 &= ~S3C2410_LCDCON1_ENVID; - writel(fbi->regs.lcdcon1, S3C2410_LCDCON1); + writel(fbi->regs.lcdcon1, fbi->io + S3C2410_LCDCON1); local_irq_restore(flags); } @@ -962,7 +985,10 @@ static int s3c2410fb_remove(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); free_irq(irq,info); - release_mem_region((unsigned long)S3C24XX_VA_LCD, S3C24XX_SZ_LCD); + + release_resource(info->mem); + kfree(info->mem); + iounmap(info->io); unregister_framebuffer(fbinfo); return 0; diff --git a/trunk/drivers/video/s3c2410fb.h b/trunk/drivers/video/s3c2410fb.h index f3f8a8e15012..17c7915b7acd 100644 --- a/trunk/drivers/video/s3c2410fb.h +++ b/trunk/drivers/video/s3c2410fb.h @@ -30,6 +30,9 @@ struct s3c2410fb_info { struct device *dev; struct clk *clk; + struct resource *mem; + void __iomem *io; + struct s3c2410fb_mach_info *mach_info; /* raw memory addresses */ diff --git a/trunk/drivers/video/tx3912fb.c b/trunk/drivers/video/tx3912fb.c deleted file mode 100644 index e6f7c78da68b..000000000000 --- a/trunk/drivers/video/tx3912fb.c +++ /dev/null @@ -1,326 +0,0 @@ -/* - * drivers/video/tx3912fb.c - * - * Copyright (C) 1999 Harald Koerfgen - * Copyright (C) 2001 Steven Hill (sjhill@realitydiluted.com) - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive for - * more details. - * - * Framebuffer for LCD controller in TMPR3912/05 and PR31700 processors - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include