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r: 68756
b: refs/heads/master
c: 4fa4350
h: refs/heads/master
v: v3
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Linus Torvalds committed Oct 14, 2007
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: a022fef5a2b19086b329d1cc64a5d78aa83e2908
refs/heads/master: 4fa435018d740cb83d74c92306aa1f796da91ddd
31 changes: 31 additions & 0 deletions trunk/CREDITS
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Expand Up @@ -665,6 +665,11 @@ D: Minor updates to SCSI types, added /proc/pid/maps protection
S: (ask for current address)
S: USA

N: Robin Cornelius
E: robincornelius@users.sourceforge.net
D: Ralink rt2x00 WLAN driver
S: Cornwall, U.K.

N: Mark Corner
E: mcorner@umich.edu
W: http://www.eecs.umich.edu/~mcorner/
Expand All @@ -679,6 +684,11 @@ D: Kernel module SMART utilities
S: Santa Cruz, California
S: USA

N: Luis Correia
E: lfcorreia@users.sf.net
D: Ralink rt2x00 WLAN driver
S: Belas, Portugal

N: Alan Cox
W: http://www.linux.org.uk/diary/
D: Linux Networking (0.99.10->2.0.29)
Expand Down Expand Up @@ -833,6 +843,12 @@ S: Lancs
S: PR4 6AX
S: United Kingdom

N: Ivo van Doorn
E: IvDoorn@gmail.com
W: http://www.mendiosus.nl
D: Ralink rt2x00 WLAN driver
S: Haarlem, The Netherlands

N: John G Dorsey
E: john+@cs.cmu.edu
D: ARM Linux ports to Assabet/Neponset, Spot
Expand Down Expand Up @@ -3517,6 +3533,12 @@ S: Maastrichterweg 63
S: 5554 GG Valkenswaard
S: The Netherlands

N: Mark Wallis
E: mwallis@serialmonkey.com
W: http://mark.serialmonkey.com
D: Ralink rt2x00 WLAN driver
S: Newcastle, Australia

N: Peter Shaobo Wang
E: pwang@mmdcorp.com
W: http://www.mmdcorp.com/pw/linux
Expand Down Expand Up @@ -3651,6 +3673,15 @@ S: Alte Regensburger Str. 11a
S: 93149 Nittenau
S: Germany

N: Gertjan van Wingerde
E: gwingerde@home.nl
D: Ralink rt2x00 WLAN driver
D: Minix V2 file-system
D: Misc fixes
S: Geessinkweg 177
S: 7544 TX Enschede
S: The Netherlands

N: Lars Wirzenius
E: liw@iki.fi
D: Linux System Administrator's Guide, author, former maintainer
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3 changes: 3 additions & 0 deletions trunk/Documentation/DMA-API.txt
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Expand Up @@ -68,6 +68,9 @@ 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.

Note that unlike their sibling allocation calls, these routines
may only be called with IRQs enabled.


Part Ib - Using small dma-coherent buffers
------------------------------------------
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2 changes: 1 addition & 1 deletion trunk/Documentation/DocBook/Makefile
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Expand Up @@ -11,7 +11,7 @@ DOCBOOKS := wanbook.xml z8530book.xml mcabook.xml videobook.xml \
procfs-guide.xml writing_usb_driver.xml \
kernel-api.xml filesystems.xml lsm.xml usb.xml \
gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \
genericirq.xml
genericirq.xml s390-drivers.xml

###
# The build process is as follows (targets):
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2 changes: 1 addition & 1 deletion trunk/Documentation/DocBook/deviceiobook.tmpl
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Expand Up @@ -316,7 +316,7 @@ CPU B: spin_unlock_irqrestore(&dev_lock, flags)

<chapter id="pubfunctions">
<title>Public Functions Provided</title>
!Iinclude/asm-i386/io.h
!Iinclude/asm-x86/io_32.h
!Elib/iomap.c
</chapter>

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26 changes: 16 additions & 10 deletions trunk/Documentation/DocBook/kernel-api.tmpl
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Expand Up @@ -45,8 +45,8 @@
</sect1>

<sect1><title>Atomic and pointer manipulation</title>
!Iinclude/asm-i386/atomic.h
!Iinclude/asm-i386/unaligned.h
!Iinclude/asm-x86/atomic_32.h
!Iinclude/asm-x86/unaligned_32.h
</sect1>

<sect1><title>Delaying, scheduling, and timer routines</title>
Expand Down Expand Up @@ -119,7 +119,7 @@ X!Ilib/string.c
!Elib/string.c
</sect1>
<sect1><title>Bit Operations</title>
!Iinclude/asm-i386/bitops.h
!Iinclude/asm-x86/bitops_32.h
</sect1>
</chapter>

Expand Down Expand Up @@ -155,8 +155,8 @@ X!Ilib/string.c
!Emm/slab.c
</sect1>
<sect1><title>User Space Memory Access</title>
!Iinclude/asm-i386/uaccess.h
!Earch/i386/lib/usercopy.c
!Iinclude/asm-x86/uaccess_32.h
!Earch/x86/lib/usercopy_32.c
</sect1>
<sect1><title>More Memory Management Functions</title>
!Emm/readahead.c
Expand Down Expand Up @@ -240,17 +240,23 @@ X!Ilib/string.c
<sect1><title>Driver Support</title>
!Enet/core/dev.c
!Enet/ethernet/eth.c
!Enet/sched/sch_generic.c
!Iinclude/linux/etherdevice.h
!Iinclude/linux/netdevice.h
</sect1>
<sect1><title>PHY Support</title>
!Edrivers/net/phy/phy.c
!Idrivers/net/phy/phy.c
!Edrivers/net/phy/phy_device.c
!Idrivers/net/phy/phy_device.c
!Edrivers/net/phy/mdio_bus.c
!Idrivers/net/phy/mdio_bus.c
</sect1>
<!-- FIXME: Removed for now since no structured comments in source
<sect1><title>Wireless</title>
X!Enet/core/wireless.c
-->
</sect1>
-->
<sect1><title>Synchronous PPP</title>
!Edrivers/net/wan/syncppp.c
</sect1>
Expand Down Expand Up @@ -287,7 +293,7 @@ X!Ekernel/module.c
</sect1>

<sect1><title>MTRR Handling</title>
!Earch/i386/kernel/cpu/mtrr/main.c
!Earch/x86/kernel/cpu/mtrr/main.c
</sect1>

<sect1><title>PCI Support Library</title>
Expand All @@ -310,14 +316,14 @@ X!Edrivers/pci/hotplug.c
<sect1><title>MCA Architecture</title>
<sect2><title>MCA Device Functions</title>
<para>
Refer to the file arch/i386/kernel/mca.c for more information.
Refer to the file arch/x86/kernel/mca_32.c for more information.
</para>
<!-- FIXME: Removed for now since no structured comments in source
X!Earch/i386/kernel/mca.c
X!Earch/x86/kernel/mca_32.c
-->
</sect2>
<sect2><title>MCA Bus DMA</title>
!Iinclude/asm-i386/mca_dma.h
!Iinclude/asm-x86/mca_dma.h
</sect2>
</sect1>
</chapter>
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4 changes: 2 additions & 2 deletions trunk/Documentation/DocBook/kernel-hacking.tmpl
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Expand Up @@ -1239,7 +1239,7 @@ static struct block_device_operations opt_fops = {
</para>

<para>
<filename>include/asm-i386/delay.h:</filename>
<filename>include/asm-x86/delay_32.h:</filename>
</para>
<programlisting>
#define ndelay(n) (__builtin_constant_p(n) ? \
Expand All @@ -1265,7 +1265,7 @@ static struct block_device_operations opt_fops = {
</programlisting>

<para>
<filename>include/asm-i386/uaccess.h:</filename>
<filename>include/asm-x86/uaccess_32.h:</filename>
</para>

<programlisting>
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2 changes: 1 addition & 1 deletion trunk/Documentation/DocBook/mcabook.tmpl
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Expand Up @@ -101,7 +101,7 @@

<chapter id="dmafunctions">
<title>DMA Functions Provided</title>
!Iinclude/asm-i386/mca_dma.h
!Iinclude/asm-x86/mca_dma.h
</chapter>

</book>
5 changes: 1 addition & 4 deletions trunk/Documentation/DocBook/mtdnand.tmpl
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Expand Up @@ -275,16 +275,13 @@ int __init board_init (void)
int err = 0;

/* Allocate memory for MTD device structure and private data */
board_mtd = kmalloc (sizeof(struct mtd_info) + sizeof (struct nand_chip), GFP_KERNEL);
board_mtd = kzalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
if (!board_mtd) {
printk ("Unable to allocate NAND MTD device structure.\n");
err = -ENOMEM;
goto out;
}

/* Initialize structures */
memset ((char *) board_mtd, 0, sizeof(struct mtd_info) + sizeof(struct nand_chip));

/* map physical adress */
baseaddr = (unsigned long)ioremap(CHIP_PHYSICAL_ADDRESS, 1024);
if(!baseaddr){
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149 changes: 149 additions & 0 deletions trunk/Documentation/DocBook/s390-drivers.tmpl
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@@ -0,0 +1,149 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>

<book id="s390drivers">
<bookinfo>
<title>Writing s390 channel device drivers</title>

<authorgroup>
<author>
<firstname>Cornelia</firstname>
<surname>Huck</surname>
<affiliation>
<address>
<email>cornelia.huck@de.ibm.com</email>
</address>
</affiliation>
</author>
</authorgroup>

<copyright>
<year>2007</year>
<holder>IBM Corp.</holder>
</copyright>

<legalnotice>
<para>
This documentation 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.
</para>

<para>
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.
</para>

<para>
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
</para>

<para>
For more details see the file COPYING in the source
distribution of Linux.
</para>
</legalnotice>
</bookinfo>

<toc></toc>

<chapter id="intro">
<title>Introduction</title>
<para>
This document describes the interfaces available for device drivers that
drive s390 based channel attached devices. This includes interfaces for
interaction with the hardware and interfaces for interacting with the
common driver core. Those interfaces are provided by the s390 common I/O
layer.
</para>
<para>
The document assumes a familarity with the technical terms associated
with the s390 channel I/O architecture. For a description of this
architecture, please refer to the "z/Architecture: Principles of
Operation", IBM publication no. SA22-7832.
</para>
<para>
While most I/O devices on a s390 system are typically driven through the
channel I/O mechanism described here, there are various other methods
(like the diag interface). These are out of the scope of this document.
</para>
<para>
Some additional information can also be found in the kernel source
under Documentation/s390/driver-model.txt.
</para>
</chapter>
<chapter id="ccw">
<title>The ccw bus</title>
<para>
The ccw bus typically contains the majority of devices available to
a s390 system. Named after the channel command word (ccw), the basic
command structure used to address its devices, the ccw bus contains
so-called channel attached devices. They are addressed via subchannels,
visible on the css bus. A device driver, however, will never interact
with the subchannel directly, but only via the device on the ccw bus,
the ccw device.
</para>
<sect1 id="channelIO">
<title>I/O functions for channel-attached devices</title>
<para>
Some hardware structures have been translated into C structures for use
by the common I/O layer and device drivers. For more information on
the hardware structures represented here, please consult the Principles
of Operation.
</para>
!Iinclude/asm-s390/cio.h
</sect1>
<sect1 id="ccwdev">
<title>ccw devices</title>
<para>
Devices that want to initiate channel I/O need to attach to the ccw bus.
Interaction with the driver core is done via the common I/O layer, which
provides the abstractions of ccw devices and ccw device drivers.
</para>
<para>
The functions that initiate or terminate channel I/O all act upon a
ccw device structure. Device drivers must not bypass those functions
or strange side effects may happen.
</para>
!Iinclude/asm-s390/ccwdev.h
!Edrivers/s390/cio/device.c
!Edrivers/s390/cio/device_ops.c
</sect1>
<sect1 id="cmf">
<title>The channel-measurement facility</title>
<para>
The channel-measurement facility provides a means to collect
measurement data which is made available by the channel subsystem
for each channel attached device.
</para>
!Iinclude/asm-s390/cmb.h
!Edrivers/s390/cio/cmf.c
</sect1>
</chapter>

<chapter id="ccwgroup">
<title>The ccwgroup bus</title>
<para>
The ccwgroup bus only contains artificial devices, created by the user.
Many networking devices (e.g. qeth) are in fact composed of several
ccw devices (like read, write and data channel for qeth). The
ccwgroup bus provides a mechanism to create a meta-device which
contains those ccw devices as slave devices and can be associated
with the netdevice.
</para>
<sect1 id="ccwgroupdevices">
<title>ccw group devices</title>
!Iinclude/asm-s390/ccwgroup.h
!Edrivers/s390/cio/ccwgroup.c
</sect1>
</chapter>

</book>
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