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r: 346842
b: refs/heads/master
c: 7b07786
h: refs/heads/master
v: v3
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Linus Torvalds committed Dec 18, 2012
1 parent c8ebf29 commit 4858c2c
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: 1f1c96102ff848778cd596e81bdbd45f81a40119
refs/heads/master: 7b077868cb8bc31aa5a0dad961ecc9f157bff744
1 change: 0 additions & 1 deletion trunk/.gitignore
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Expand Up @@ -60,7 +60,6 @@ modules.builtin
# Generated include files
#
include/config
include/linux/version.h
include/generated
arch/*/include/generated

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2 changes: 0 additions & 2 deletions trunk/Documentation/00-INDEX
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Expand Up @@ -136,8 +136,6 @@ fault-injection/
- dir with docs about the fault injection capabilities infrastructure.
fb/
- directory with info on the frame buffer graphics abstraction layer.
feature-removal-schedule.txt
- list of files and features that are going to be removed.
filesystems/
- info on the vfs and the various filesystems that Linux supports.
firmware_class/
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3 changes: 0 additions & 3 deletions trunk/Documentation/ABI/README
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Expand Up @@ -36,9 +36,6 @@ The different levels of stability are:
the kernel, but are marked to be removed at some later point in
time. The description of the interface will document the reason
why it is obsolete and when it can be expected to be removed.
The file Documentation/feature-removal-schedule.txt may describe
some of these interfaces, giving a schedule for when they will
be removed.

removed/
This directory contains a list of the old interfaces that have
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9 changes: 9 additions & 0 deletions trunk/Documentation/DMA-attributes.txt
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Expand Up @@ -91,3 +91,12 @@ transferred to 'device' domain. This attribute can be also used for
dma_unmap_{single,page,sg} functions family to force buffer to stay in
device domain after releasing a mapping for it. Use this attribute with
care!

DMA_ATTR_FORCE_CONTIGUOUS
-------------------------

By default DMA-mapping subsystem is allowed to assemble the buffer
allocated by dma_alloc_attrs() function from individual pages if it can
be mapped as contiguous chunk into device dma address space. By
specifing this attribute the allocated buffer is forced to be contiguous
also in physical memory.
39 changes: 22 additions & 17 deletions trunk/Documentation/DocBook/drm.tmpl
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Expand Up @@ -1141,23 +1141,13 @@ int max_width, max_height;</synopsis>
the <methodname>page_flip</methodname> operation will be called with a
non-NULL <parameter>event</parameter> argument pointing to a
<structname>drm_pending_vblank_event</structname> instance. Upon page
flip completion the driver must fill the
<parameter>event</parameter>::<structfield>event</structfield>
<structfield>sequence</structfield>, <structfield>tv_sec</structfield>
and <structfield>tv_usec</structfield> fields with the associated
vertical blanking count and timestamp, add the event to the
<parameter>drm_file</parameter> list of events to be signaled, and wake
up any waiting process. This can be performed with
flip completion the driver must call <methodname>drm_send_vblank_event</methodname>
to fill in the event and send to wake up any waiting processes.
This can be performed with
<programlisting><![CDATA[
struct timeval now;
event->event.sequence = drm_vblank_count_and_time(..., &now);
event->event.tv_sec = now.tv_sec;
event->event.tv_usec = now.tv_usec;
spin_lock_irqsave(&dev->event_lock, flags);
list_add_tail(&event->base.link, &event->base.file_priv->event_list);
wake_up_interruptible(&event->base.file_priv->event_wait);
...
drm_send_vblank_event(dev, pipe, event);
spin_unlock_irqrestore(&dev->event_lock, flags);
]]></programlisting>
</para>
Expand Down Expand Up @@ -1621,10 +1611,10 @@ void intel_crt_init(struct drm_device *dev)
</sect2>
</sect1>

<!-- Internals: mid-layer helper functions -->
<!-- Internals: kms helper functions -->

<sect1>
<title>Mid-layer Helper Functions</title>
<title>Mode Setting Helper Functions</title>
<para>
The CRTC, encoder and connector functions provided by the drivers
implement the DRM API. They're called by the DRM core and ioctl handlers
Expand Down Expand Up @@ -2106,6 +2096,21 @@ void intel_crt_init(struct drm_device *dev)
</listitem>
</itemizedlist>
</sect2>
<sect2>
<title>Modeset Helper Functions Reference</title>
!Edrivers/gpu/drm/drm_crtc_helper.c
</sect2>
<sect2>
<title>fbdev Helper Functions Reference</title>
!Pdrivers/gpu/drm/drm_fb_helper.c fbdev helpers
!Edrivers/gpu/drm/drm_fb_helper.c
</sect2>
<sect2>
<title>Display Port Helper Functions Reference</title>
!Pdrivers/gpu/drm/drm_dp_helper.c dp helpers
!Iinclude/drm/drm_dp_helper.h
!Edrivers/gpu/drm/drm_dp_helper.c
</sect2>
</sect1>

<!-- Internals: vertical blanking -->
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3 changes: 3 additions & 0 deletions trunk/Documentation/DocBook/kernel-api.tmpl
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Expand Up @@ -58,6 +58,9 @@

<sect1><title>String Conversions</title>
!Elib/vsprintf.c
!Finclude/linux/kernel.h kstrtol
!Finclude/linux/kernel.h kstrtoul
!Elib/kstrtox.c
</sect1>
<sect1><title>String Manipulation</title>
<!-- All functions are exported at now
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94 changes: 94 additions & 0 deletions trunk/Documentation/acpi/initrd_table_override.txt
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Overriding ACPI tables via initrd
=================================

1) Introduction (What is this about)
2) What is this for
3) How does it work
4) References (Where to retrieve userspace tools)

1) What is this about
---------------------

If the ACPI_INITRD_TABLE_OVERRIDE compile option is true, it is possible to
override nearly any ACPI table provided by the BIOS with an instrumented,
modified one.

For a full list of ACPI tables that can be overridden, take a look at
the char *table_sigs[MAX_ACPI_SIGNATURE]; definition in drivers/acpi/osl.c
All ACPI tables iasl (Intel's ACPI compiler and disassembler) knows should
be overridable, except:
- ACPI_SIG_RSDP (has a signature of 6 bytes)
- ACPI_SIG_FACS (does not have an ordinary ACPI table header)
Both could get implemented as well.


2) What is this for
-------------------

Please keep in mind that this is a debug option.
ACPI tables should not get overridden for productive use.
If BIOS ACPI tables are overridden the kernel will get tainted with the
TAINT_OVERRIDDEN_ACPI_TABLE flag.
Complain to your platform/BIOS vendor if you find a bug which is so sever
that a workaround is not accepted in the Linux kernel.

Still, it can and should be enabled in any kernel, because:
- There is no functional change with not instrumented initrds
- It provides a powerful feature to easily debug and test ACPI BIOS table
compatibility with the Linux kernel.


3) How does it work
-------------------

# Extract the machine's ACPI tables:
cd /tmp
acpidump >acpidump
acpixtract -a acpidump
# Disassemble, modify and recompile them:
iasl -d *.dat
# For example add this statement into a _PRT (PCI Routing Table) function
# of the DSDT:
Store("HELLO WORLD", debug)
iasl -sa dsdt.dsl
# Add the raw ACPI tables to an uncompressed cpio archive.
# They must be put into a /kernel/firmware/acpi directory inside the
# cpio archive.
# The uncompressed cpio archive must be the first.
# Other, typically compressed cpio archives, must be
# concatenated on top of the uncompressed one.
mkdir -p kernel/firmware/acpi
cp dsdt.aml kernel/firmware/acpi
# A maximum of: #define ACPI_OVERRIDE_TABLES 10
# tables are currently allowed (see osl.c):
iasl -sa facp.dsl
iasl -sa ssdt1.dsl
cp facp.aml kernel/firmware/acpi
cp ssdt1.aml kernel/firmware/acpi
# Create the uncompressed cpio archive and concatenate the original initrd
# on top:
find kernel | cpio -H newc --create > /boot/instrumented_initrd
cat /boot/initrd >>/boot/instrumented_initrd
# reboot with increased acpi debug level, e.g. boot params:
acpi.debug_level=0x2 acpi.debug_layer=0xFFFFFFFF
# and check your syslog:
[ 1.268089] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
[ 1.272091] [ACPI Debug] String [0x0B] "HELLO WORLD"

iasl is able to disassemble and recompile quite a lot different,
also static ACPI tables.


4) Where to retrieve userspace tools
------------------------------------

iasl and acpixtract are part of Intel's ACPICA project:
http://acpica.org/
and should be packaged by distributions (for example in the acpica package
on SUSE).

acpidump can be found in Len Browns pmtools:
ftp://kernel.org/pub/linux/kernel/people/lenb/acpi/utils/pmtools/acpidump
This tool is also part of the acpica package on SUSE.
Alternatively, used ACPI tables can be retrieved via sysfs in latest kernels:
/sys/firmware/acpi/tables
4 changes: 3 additions & 1 deletion trunk/Documentation/aoe/aoe.txt
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Expand Up @@ -125,7 +125,9 @@ DRIVER OPTIONS
The aoe_deadsecs module parameter determines the maximum number of
seconds that the driver will wait for an AoE device to provide a
response to an AoE command. After aoe_deadsecs seconds have
elapsed, the AoE device will be marked as "down".
elapsed, the AoE device will be marked as "down". A value of zero
is supported for testing purposes and makes the aoe driver keep
trying AoE commands forever.

The aoe_maxout module parameter has a default of 128. This is the
maximum number of unresponded packets that will be sent to an AoE
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10 changes: 4 additions & 6 deletions trunk/Documentation/arm/OMAP/DSS
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Expand Up @@ -285,7 +285,10 @@ FB0 +-- GFX ---- LCD ---- LCD
Misc notes
----------

OMAP FB allocates the framebuffer memory using the OMAP VRAM allocator.
OMAP FB allocates the framebuffer memory using the standard dma allocator. You
can enable Contiguous Memory Allocator (CONFIG_CMA) to improve the dma
allocator, and if CMA is enabled, you use "cma=" kernel parameter to increase
the global memory area for CMA.

Using DSI DPLL to generate pixel clock it is possible produce the pixel clock
of 86.5MHz (max possible), and with that you get 1280x1024@57 output from DVI.
Expand All @@ -301,11 +304,6 @@ framebuffer parameters.
Kernel boot arguments
---------------------

vram=<size>[,<physaddr>]
- Amount of total VRAM to preallocate and optionally a physical start
memory address. For example, "10M". omapfb allocates memory for
framebuffers from VRAM.

omapfb.mode=<display>:<mode>[,...]
- Default video mode for specified displays. For example,
"dvi:800x400MR-24@60". See drivers/video/modedb.c.
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10 changes: 2 additions & 8 deletions trunk/Documentation/backlight/lp855x-driver.txt
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Expand Up @@ -35,11 +35,8 @@ For supporting platform specific data, the lp855x platform data can be used.
* mode : Brightness control mode. PWM or register based.
* device_control : Value of DEVICE CONTROL register.
* initial_brightness : Initial value of backlight brightness.
* pwm_data : Platform specific pwm generation functions.
* period_ns : Platform specific PWM period value. unit is nano.
Only valid when brightness is pwm input mode.
Functions should be implemented by PWM driver.
- pwm_set_intensity() : set duty of PWM
- pwm_get_intensity() : get current duty of PWM
* load_new_rom_data :
0 : use default configuration data
1 : update values of eeprom or eprom registers on loading driver
Expand Down Expand Up @@ -71,8 +68,5 @@ static struct lp855x_platform_data lp8556_pdata = {
.mode = PWM_BASED,
.device_control = PWM_CONFIG(LP8556),
.initial_brightness = INITIAL_BRT,
.pwm_data = {
.pwm_set_intensity = platform_pwm_set_intensity,
.pwm_get_intensity = platform_pwm_get_intensity,
},
.period_ns = 1000000,
};
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Altera SOCFPGA Reset Manager

Required properties:
- compatible : "altr,rst-mgr"
- reg : Should contain 1 register ranges(address and length)

Example:
rstmgr@ffd05000 {
compatible = "altr,rst-mgr";
reg = <0xffd05000 0x1000>;
};
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Altera SOCFPGA System Manager

Required properties:
- compatible : "altr,sys-mgr"
- reg : Should contain 1 register ranges(address and length)

Example:
sysmgr@ffd08000 {
compatible = "altr,sys-mgr";
reg = <0xffd08000 0x1000>;
};
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Expand Up @@ -6,9 +6,15 @@ Required properties:
- interrupt-controller: Identifies the node as an interrupt controller.
- #interrupt-cells: The number of cells to define the interrupts. Should be 1.
The cell is the IRQ number

- reg: Should contain PMIC registers location and length. First pair
for the main interrupt registers, second pair for the per-CPU
interrupt registers
interrupt registers. For this last pair, to be compliant with SMP
support, the "virtual" must be use (For the record, these registers
automatically map to the interrupt controller registers of the
current CPU)



Example:

Expand All @@ -18,6 +24,6 @@ Example:
#address-cells = <1>;
#size-cells = <1>;
interrupt-controller;
reg = <0xd0020000 0x1000>,
<0xd0021000 0x1000>;
reg = <0xd0020a00 0x1d0>,
<0xd0021070 0x58>;
};
20 changes: 20 additions & 0 deletions trunk/Documentation/devicetree/bindings/arm/armada-370-xp-pmsu.txt
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Power Management Service Unit(PMSU)
-----------------------------------
Available on Marvell SOCs: Armada 370 and Armada XP

Required properties:

- compatible: "marvell,armada-370-xp-pmsu"

- reg: Should contain PMSU registers location and length. First pair
for the per-CPU SW Reset Control registers, second pair for the
Power Management Service Unit.

Example:

armada-370-xp-pmsu@d0022000 {
compatible = "marvell,armada-370-xp-pmsu";
reg = <0xd0022100 0x430>,
<0xd0020800 0x20>;
};

Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ Required properties:
- compatible: Should be "marvell,armada-370-xp-timer"
- interrupts: Should contain the list of Global Timer interrupts
- reg: Should contain the base address of the Global Timer registers
- clocks: clock driving the timer hardware

Optional properties:
- marvell,timer-25Mhz: Tells whether the Global timer supports the 25
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21 changes: 21 additions & 0 deletions trunk/Documentation/devicetree/bindings/arm/coherency-fabric.txt
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Coherency fabric
----------------
Available on Marvell SOCs: Armada 370 and Armada XP

Required properties:

- compatible: "marvell,coherency-fabric"

- reg: Should contain coherency fabric registers location and
length. First pair for the coherency fabric registers, second pair
for the per-CPU fabric registers registers.

Example:

coherency-fabric@d0020200 {
compatible = "marvell,coherency-fabric";
reg = <0xd0020200 0xb0>,
<0xd0021810 0x1c>;

};

9 changes: 9 additions & 0 deletions trunk/Documentation/devicetree/bindings/arm/l2cc.txt
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Expand Up @@ -10,6 +10,12 @@ Required properties:
"arm,pl310-cache"
"arm,l220-cache"
"arm,l210-cache"
"marvell,aurora-system-cache": Marvell Controller designed to be
compatible with the ARM one, with system cache mode (meaning
maintenance operations on L1 are broadcasted to the L2 and L2
performs the same operation).
"marvell,"aurora-outer-cache: Marvell Controller designed to be
compatible with the ARM one with outer cache mode.
- cache-unified : Specifies the cache is a unified cache.
- cache-level : Should be set to 2 for a level 2 cache.
- reg : Physical base address and size of cache controller's memory mapped
Expand All @@ -29,6 +35,9 @@ Optional properties:
filter. Addresses in the filter window are directed to the M1 port. Other
addresses will go to the M0 port.
- interrupts : 1 combined interrupt.
- cache-id-part: cache id part number to be used if it is not present
on hardware
- wt-override: If present then L2 is forced to Write through mode

Example:

Expand Down
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