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Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6

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David S. Miller 2010-09-08 23:49:04 -07:00
parent 972c40b5be d56557af19
commit e199e6136c
6129 changed files with 352368 additions and 470800 deletions
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4
Documentation/00-INDEX
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@ -130,8 +130,6 @@ edac.txt
- information on EDAC - Error Detection And Correction
eisa.txt
- info on EISA bus support.
exception.txt
- how Linux v2.2 handles exceptions without verify_area etc.
fault-injection/
- dir with docs about the fault injection capabilities infrastructure.
fb/
@ -234,6 +232,8 @@ memory.txt
- info on typical Linux memory problems.
mips/
- directory with info about Linux on MIPS architecture.
mmc/
- directory with info about the MMC subsystem
mono.txt
- how to execute Mono-based .NET binaries with the help of BINFMT_MISC.
mutex-design.txt

71
Documentation/ABI/testing/debugfs-kmemtrace
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@ -1,71 +0,0 @@
What: /sys/kernel/debug/kmemtrace/
Date: July 2008
Contact: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Description:
In kmemtrace-enabled kernels, the following files are created:
/sys/kernel/debug/kmemtrace/
cpu<n> (0400) Per-CPU tracing data, see below. (binary)
total_overruns (0400) Total number of bytes which were dropped from
cpu<n> files because of full buffer condition,
non-binary. (text)
abi_version (0400) Kernel's kmemtrace ABI version. (text)
Each per-CPU file should be read according to the relay interface. That is,
the reader should set affinity to that specific CPU and, as currently done by
the userspace application (though there are other methods), use poll() with
an infinite timeout before every read(). Otherwise, erroneous data may be
read. The binary data has the following _core_ format:
Event ID (1 byte) Unsigned integer, one of:
0 - represents an allocation (KMEMTRACE_EVENT_ALLOC)
1 - represents a freeing of previously allocated memory
(KMEMTRACE_EVENT_FREE)
Type ID (1 byte) Unsigned integer, one of:
0 - this is a kmalloc() / kfree()
1 - this is a kmem_cache_alloc() / kmem_cache_free()
2 - this is a __get_free_pages() et al.
Event size (2 bytes) Unsigned integer representing the
size of this event. Used to extend
kmemtrace. Discard the bytes you
don't know about.
Sequence number (4 bytes) Signed integer used to reorder data
logged on SMP machines. Wraparound
must be taken into account, although
it is unlikely.
Caller address (8 bytes) Return address to the caller.
Pointer to mem (8 bytes) Pointer to target memory area. Can be
NULL, but not all such calls might be
recorded.
In case of KMEMTRACE_EVENT_ALLOC events, the next fields follow:
Requested bytes (8 bytes) Total number of requested bytes,
unsigned, must not be zero.
Allocated bytes (8 bytes) Total number of actually allocated
bytes, unsigned, must not be lower
than requested bytes.
Requested flags (4 bytes) GFP flags supplied by the caller.
Target CPU (4 bytes) Signed integer, valid for event id 1.
If equal to -1, target CPU is the same
as origin CPU, but the reverse might
not be true.
The data is made available in the same endianness the machine has.
Other event ids and type ids may be defined and added. Other fields may be
added by increasing event size, but see below for details.
Every modification to the ABI, including new id definitions, are followed
by bumping the ABI version by one.
Adding new data to the packet (features) is done at the end of the mandatory
data:
Feature size (2 byte)
Feature ID (1 byte)
Feature data (Feature size - 3 bytes)
Users:
kmemtrace-user - git://repo.or.cz/kmemtrace-user.git

21
Documentation/ABI/testing/sysfs-bus-i2c-devices-hm6352 Normal file
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@ -0,0 +1,21 @@
Where: /sys/bus/i2c/devices/.../heading0_input
Date: April 2010
Kernel Version: 2.6.36?
Contact: alan.cox@intel.com
Description: Reports the current heading from the compass as a floating
point value in degrees.
Where: /sys/bus/i2c/devices/.../power_state
Date: April 2010
Kernel Version: 2.6.36?
Contact: alan.cox@intel.com
Description: Sets the power state of the device. 0 sets the device into
sleep mode, 1 wakes it up.
Where: /sys/bus/i2c/devices/.../calibration
Date: April 2010
Kernel Version: 2.6.36?
Contact: alan.cox@intel.com
Description: Sets the calibration on or off (1 = on, 0 = off). See the
chip data sheet.

27
Documentation/ABI/testing/sysfs-bus-pci
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@ -139,3 +139,30 @@ Contact: linux-pci@vger.kernel.org
Description:
This symbolic link points to the PCI hotplug controller driver
module that manages the hotplug slot.
What: /sys/bus/pci/devices/.../label
Date: July 2010
Contact: Narendra K <narendra_k@dell.com>, linux-bugs@dell.com
Description:
Reading this attribute will provide the firmware
given name(SMBIOS type 41 string) of the PCI device.
The attribute will be created only if the firmware
has given a name to the PCI device.
Users:
Userspace applications interested in knowing the
firmware assigned name of the PCI device.
What: /sys/bus/pci/devices/.../index
Date: July 2010
Contact: Narendra K <narendra_k@dell.com>, linux-bugs@dell.com
Description:
Reading this attribute will provide the firmware
given instance(SMBIOS type 41 device type instance)
of the PCI device. The attribute will be created
only if the firmware has given a device type instance
to the PCI device.
Users:
Userspace applications interested in knowing the
firmware assigned device type instance of the PCI
device that can help in understanding the firmware
intended order of the PCI device.

12
Documentation/ABI/testing/sysfs-devices-platform-_UDC_-gadget
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@ -7,3 +7,15 @@ Description:
0 -> resumed
(_UDC_ is the name of the USB Device Controller driver)
What: /sys/devices/platform/_UDC_/gadget/gadget-lunX/nofua
Date: July 2010
Contact: Andy Shevchenko <andy.shevchenko@gmail.com>
Description:
Show or set the reaction on the FUA (Force Unit Access) bit in
the SCSI WRITE(10,12) commands when a gadget in USB Mass
Storage mode.
Possible values are:
1 -> ignore the FUA flag
0 -> obey the FUA flag

31
Documentation/ABI/testing/sysfs-i2c-bmp085 Normal file
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@ -0,0 +1,31 @@
What: /sys/bus/i2c/devices/<busnum>-<devaddr>/pressure0_input
Date: June 2010
Contact: Christoph Mair <christoph.mair@gmail.com>
Description: Start a pressure measurement and read the result. Values
represent the ambient air pressure in pascal (0.01 millibar).
Reading: returns the current air pressure.
What: /sys/bus/i2c/devices/<busnum>-<devaddr>/temp0_input
Date: June 2010
Contact: Christoph Mair <christoph.mair@gmail.com>
Description: Measure the ambient temperature. The returned value represents
the ambient temperature in units of 0.1 degree celsius.
Reading: returns the current temperature.
What: /sys/bus/i2c/devices/<busnum>-<devaddr>/oversampling
Date: June 2010
Contact: Christoph Mair <christoph.mair@gmail.com>
Description: Tell the bmp085 to use more samples to calculate a pressure
value. When writing to this file the chip will use 2^x samples
to calculate the next pressure value with x being the value
written. Using this feature will decrease RMS noise and
increase the measurement time.
Reading: returns the current oversampling setting.
Writing: sets a new oversampling setting.
Accepted values: 0..3.

16
Documentation/DMA-API-HOWTO.txt
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@ -738,21 +738,31 @@ to "Closing".
CONFIG_NEED_SG_DMA_LENGTH if the architecture supports IOMMUs
(including software IOMMU).
2) ARCH_KMALLOC_MINALIGN
2) ARCH_DMA_MINALIGN
Architectures must ensure that kmalloc'ed buffer is
DMA-safe. Drivers and subsystems depend on it. If an architecture
isn't fully DMA-coherent (i.e. hardware doesn't ensure that data in
the CPU cache is identical to data in main memory),
ARCH_KMALLOC_MINALIGN must be set so that the memory allocator
ARCH_DMA_MINALIGN must be set so that the memory allocator
makes sure that kmalloc'ed buffer doesn't share a cache line with
the others. See arch/arm/include/asm/cache.h as an example.
Note that ARCH_KMALLOC_MINALIGN is about DMA memory alignment
Note that ARCH_DMA_MINALIGN is about DMA memory alignment
constraints. You don't need to worry about the architecture data
alignment constraints (e.g. the alignment constraints about 64-bit
objects).
3) Supporting multiple types of IOMMUs
If your architecture needs to support multiple types of IOMMUs, you
can use include/linux/asm-generic/dma-mapping-common.h. It's a
library to support the DMA API with multiple types of IOMMUs. Lots
of architectures (x86, powerpc, sh, alpha, ia64, microblaze and
sparc) use it. Choose one to see how it can be used. If you need to
support multiple types of IOMMUs in a single system, the example of
x86 or powerpc helps.
Closing
This document, and the API itself, would not be in its current

6
Documentation/DMA-API.txt
View file

@ -455,12 +455,6 @@ 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
area pointed to by the dma_handle.
int
dma_get_cache_alignment(void)

6
Documentation/DocBook/Makefile
View file

@ -35,7 +35,7 @@ PS_METHOD = $(prefer-db2x)
PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs xmldoclinks
BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
xmldocs: $(BOOKS) xmldoclinks
xmldocs: $(BOOKS)
sgmldocs: xmldocs
PS := $(patsubst %.xml, %.ps, $(BOOKS))
@ -45,7 +45,7 @@ PDF := $(patsubst %.xml, %.pdf, $(BOOKS))
pdfdocs: $(PDF)
HTML := $(sort $(patsubst %.xml, %.html, $(BOOKS)))
htmldocs: $(HTML)
htmldocs: $(HTML) xmldoclinks
$(call build_main_index)
$(call build_images)
@ -95,7 +95,7 @@ define rule_docproc
) > $(dir $@).$(notdir $@).cmd
endef
%.xml: %.tmpl FORCE
%.xml: %.tmpl xmldoclinks FORCE
$(call if_changed_rule,docproc)
###

1
Documentation/DocBook/device-drivers.tmpl
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@ -111,6 +111,7 @@ X!Edrivers/base/attribute_container.c
<!--
X!Edrivers/base/interface.c
-->
!Iinclude/linux/platform_device.h
!Edrivers/base/platform.c
!Edrivers/base/bus.c
</sect1>

1
Documentation/DocBook/kernel-api.tmpl
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@ -132,7 +132,6 @@ X!Ilib/string.c
<title>FIFO Buffer</title>
<sect1><title>kfifo interface</title>
!Iinclude/linux/kfifo.h
!Ekernel/kfifo.c
</sect1>
</chapter>

7
Documentation/DocBook/kernel-locking.tmpl
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@ -1922,9 +1922,12 @@ machines due to caching.
<function>mutex_lock()</function>
</para>
<para>
There is a <function>mutex_trylock()</function> which can be
used inside interrupt context, as it will not sleep.
There is a <function>mutex_trylock()</function> which does not
sleep. Still, it must not be used inside interrupt context since
its implementation is not safe for that.
<function>mutex_unlock()</function> will also never sleep.
It cannot be used in interrupt context either since a mutex
must be released by the same task that acquired it.
</para>
</listitem>
</itemizedlist>

108
Documentation/DocBook/kgdb.tmpl
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@ -199,10 +199,33 @@
may be configured as a kernel built-in or a kernel loadable module.
You can only make use of <constant>kgdbwait</constant> and early
debugging if you build kgdboc into the kernel as a built-in.
<para>Optionally you can elect to activate kms (Kernel Mode
Setting) integration. When you use kms with kgdboc and you have a
video driver that has atomic mode setting hooks, it is possible to
enter the debugger on the graphics console. When the kernel
execution is resumed, the previous graphics mode will be restored.
This integration can serve as a useful tool to aid in diagnosing
crashes or doing analysis of memory with kdb while allowing the
full graphics console applications to run.
</para>
</para>
<sect2 id="kgdbocArgs">
<title>kgdboc arguments</title>
<para>Usage: <constant>kgdboc=[kbd][[,]serial_device][,baud]</constant></para>
<para>Usage: <constant>kgdboc=[kms][[,]kbd][[,]serial_device][,baud]</constant></para>
<para>The order listed above must be observed if you use any of the
optional configurations together.
</para>
<para>Abbreviations:
<itemizedlist>
<listitem><para>kms = Kernel Mode Setting</para></listitem>
<listitem><para>kbd = Keyboard</para></listitem>
</itemizedlist>
</para>
<para>You can configure kgdboc to use the keyboard, and or a serial
device depending on if you are using kdb and or kgdb, in one of the
following scenarios. The order listed above must be observed if
you use any of the optional configurations together. Using kms +
only gdb is generally not a useful combination.</para>
<sect3 id="kgdbocArgs1">
<title>Using loadable module or built-in</title>
<para>
@ -212,7 +235,7 @@
<listitem>
<para>As a kernel loadable module:</para>
<para>Use the command: <constant>modprobe kgdboc kgdboc=&lt;tty-device&gt;,[baud]</constant></para>
<para>Here are two examples of how you might formate the kgdboc
<para>Here are two examples of how you might format the kgdboc
string. The first is for an x86 target using the first serial port.
The second example is for the ARM Versatile AB using the second
serial port.
@ -240,6 +263,9 @@
</sect3>
<sect3 id="kgdbocArgs3">
<title>More examples</title>
<para>You can configure kgdboc to use the keyboard, and or a serial
device depending on if you are using kdb and or kgdb, in one of the
following scenarios.</para>
<para>You can configure kgdboc to use the keyboard, and or a serial device
depending on if you are using kdb and or kgdb, in one of the
following scenarios.
@ -255,6 +281,12 @@
<listitem><para>kdb with a keyboard</para>
<para><constant>kgdboc=kbd</constant></para>
</listitem>
<listitem><para>kdb with kernel mode setting</para>
<para><constant>kgdboc=kms,kbd</constant></para>
</listitem>
<listitem><para>kdb with kernel mode setting and kgdb over a serial port</para>
<para><constant>kgdboc=kms,kbd,ttyS0,115200</constant></para>
</listitem>
</orderedlist>
</para>
</sect3>
@ -637,6 +669,8 @@ Task Addr Pid Parent [*] cpu State Thread Command
<listitem><para>The logic to perform safe memory reads and writes to memory while using the debugger</para></listitem>
<listitem><para>A full implementation for software breakpoints unless overridden by the arch</para></listitem>
<listitem><para>The API to invoke either the kdb or kgdb frontend to the debug core.</para></listitem>
<listitem><para>The structures and callback API for atomic kernel mode setting.</para>
<para>NOTE: kgdboc is where the kms callbacks are invoked.</para></listitem>
</itemizedlist>
</para>
</listitem>
@ -747,6 +781,8 @@ Task Addr Pid Parent [*] cpu State Thread Command
</sect1>
<sect1 id="kgdbocDesign">
<title>kgdboc internals</title>
<sect2>
<title>kgdboc and uarts</title>
<para>
The kgdboc driver is actually a very thin driver that relies on the
underlying low level to the hardware driver having "polling hooks"
@ -754,11 +790,8 @@ Task Addr Pid Parent [*] cpu State Thread Command
implementation of kgdboc it the serial_core was changed to expose a
low level UART hook for doing polled mode reading and writing of a
single character while in an atomic context. When kgdb makes an I/O
request to the debugger, kgdboc invokes a call back in the serial
core which in turn uses the call back in the UART driver. It is
certainly possible to extend kgdboc to work with non-UART based
consoles in the future.
</para>
request to the debugger, kgdboc invokes a callback in the serial
core which in turn uses the callback in the UART driver.</para>
<para>
When using kgdboc with a UART, the UART driver must implement two callbacks in the <constant>struct uart_ops</constant>. Example from drivers/8250.c:<programlisting>
#ifdef CONFIG_CONSOLE_POLL
@ -772,9 +805,68 @@ Task Addr Pid Parent [*] cpu State Thread Command
that they can be called from an atomic context and have to restore
the state of the UART chip on return such that the system can return
to normal when the debugger detaches. You need to be very careful
with any kind of lock you consider, because failing here is most
with any kind of lock you consider, because failing here is most likely
going to mean pressing the reset button.
</para>
</sect2>
<sect2 id="kgdbocKbd">
<title>kgdboc and keyboards</title>
<para>The kgdboc driver contains logic to configure communications
with an attached keyboard. The keyboard infrastructure is only
compiled into the kernel when CONFIG_KDB_KEYBOARD=y is set in the
kernel configuration.</para>
<para>The core polled keyboard driver driver for PS/2 type keyboards
is in drivers/char/kdb_keyboard.c. This driver is hooked into the
debug core when kgdboc populates the callback in the array
called <constant>kdb_poll_funcs[]</constant>. The
kdb_get_kbd_char() is the top-level function which polls hardware
for single character input.
</para>
</sect2>
<sect2 id="kgdbocKms">
<title>kgdboc and kms</title>
<para>The kgdboc driver contains logic to request the graphics
display to switch to a text context when you are using
"kgdboc=kms,kbd", provided that you have a video driver which has a
frame buffer console and atomic kernel mode setting support.</para>
<para>
Every time the kernel
debugger is entered it calls kgdboc_pre_exp_handler() which in turn
calls con_debug_enter() in the virtual console layer. On resuming kernel
execution, the kernel debugger calls kgdboc_post_exp_handler() which
in turn calls con_debug_leave().</para>
<para>Any video driver that wants to be compatible with the kernel
debugger and the atomic kms callbacks must implement the
mode_set_base_atomic, fb_debug_enter and fb_debug_leave operations.
For the fb_debug_enter and fb_debug_leave the option exists to use
the generic drm fb helper functions or implement something custom for
the hardware. The following example shows the initialization of the
.mode_set_base_atomic operation in
drivers/gpu/drm/i915/intel_display.c:
<informalexample>
<programlisting>
static const struct drm_crtc_helper_funcs intel_helper_funcs = {
[...]
.mode_set_base_atomic = intel_pipe_set_base_atomic,
[...]
};
</programlisting>
</informalexample>
</para>
<para>Here is an example of how the i915 driver initializes the fb_debug_enter and fb_debug_leave functions to use the generic drm helpers in
drivers/gpu/drm/i915/intel_fb.c:
<informalexample>
<programlisting>
static struct fb_ops intelfb_ops = {
[...]
.fb_debug_enter = drm_fb_helper_debug_enter,
.fb_debug_leave = drm_fb_helper_debug_leave,
[...]
};
</programlisting>
</informalexample>
</para>
</sect2>
</sect1>
</chapter>
<chapter id="credits">

1
Documentation/DocBook/stylesheet.xsl
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@ -6,4 +6,5 @@
<param name="callout.graphics">0</param>
<!-- <param name="paper.type">A4</param> -->
<param name="generate.section.toc.level">2</param>
<param name="use.id.as.filename">1</param>
</stylesheet>

5
Documentation/DocBook/tracepoint.tmpl
View file

@ -104,4 +104,9 @@
<title>Block IO</title>
!Iinclude/trace/events/block.h
</chapter>
<chapter id="workqueue">
<title>Workqueue</title>
!Iinclude/trace/events/workqueue.h
</chapter>
</book>

16
Documentation/DocBook/v4l/lirc_device_interface.xml
View file

@ -229,6 +229,22 @@ on working with the default settings initially.</para>
and LIRC_SETUP_END. Drivers can also choose to ignore these ioctls.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>LIRC_SET_WIDEBAND_RECEIVER</term>
<listitem>
<para>Some receivers are equipped with special wide band receiver which is intended
to be used to learn output of existing remote.
Calling that ioctl with (1) will enable it, and with (0) disable it.
This might be useful of receivers that have otherwise narrow band receiver
that prevents them to be used with some remotes.
Wide band receiver might also be more precise
On the other hand its disadvantage it usually reduced range of reception.
Note: wide band receiver might be implictly enabled if you enable
carrier reports. In that case it will be disabled as soon as you disable
carrier reports. Trying to disable wide band receiver while carrier
reports are active will do nothing.</para>
</listitem>
</varlistentry>
</variablelist>
</section>

78
Documentation/DocBook/v4l/pixfmt-packed-rgb.xml
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@ -240,6 +240,45 @@ colorspace <constant>V4L2_COLORSPACE_SRGB</constant>.</para>
<entry>r<subscript>1</subscript></entry>
<entry>r<subscript>0</subscript></entry>
</row>
<row id="V4L2-PIX-FMT-BGR666">
<entry><constant>V4L2_PIX_FMT_BGR666</constant></entry>
<entry>'BGRH'</entry>
<entry></entry>
<entry>b<subscript>5</subscript></entry>
<entry>b<subscript>4</subscript></entry>
<entry>b<subscript>3</subscript></entry>
<entry>b<subscript>2</subscript></entry>
<entry>b<subscript>1</subscript></entry>
<entry>b<subscript>0</subscript></entry>
<entry>g<subscript>5</subscript></entry>
<entry>g<subscript>4</subscript></entry>
<entry></entry>
<entry>g<subscript>3</subscript></entry>
<entry>g<subscript>2</subscript></entry>
<entry>g<subscript>1</subscript></entry>
<entry>g<subscript>0</subscript></entry>
<entry>r<subscript>5</subscript></entry>
<entry>r<subscript>4</subscript></entry>
<entry>r<subscript>3</subscript></entry>
<entry>r<subscript>2</subscript></entry>
<entry></entry>
<entry>r<subscript>1</subscript></entry>
<entry>r<subscript>0</subscript></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
</row>
<row id="V4L2-PIX-FMT-BGR24">
<entry><constant>V4L2_PIX_FMT_BGR24</constant></entry>
<entry>'BGR3'</entry>
@ -700,6 +739,45 @@ defined in error. Drivers may interpret them as in <xref
<entry>b<subscript>1</subscript></entry>
<entry>b<subscript>0</subscript></entry>
</row>
<row id="V4L2-PIX-FMT-BGR666">
<entry><constant>V4L2_PIX_FMT_BGR666</constant></entry>
<entry>'BGRH'</entry>
<entry></entry>
<entry>b<subscript>5</subscript></entry>
<entry>b<subscript>4</subscript></entry>
<entry>b<subscript>3</subscript></entry>
<entry>b<subscript>2</subscript></entry>
<entry>b<subscript>1</subscript></entry>
<entry>b<subscript>0</subscript></entry>
<entry>g<subscript>5</subscript></entry>
<entry>g<subscript>4</subscript></entry>
<entry></entry>
<entry>g<subscript>3</subscript></entry>
<entry>g<subscript>2</subscript></entry>
<entry>g<subscript>1</subscript></entry>
<entry>g<subscript>0</subscript></entry>
<entry>r<subscript>5</subscript></entry>
<entry>r<subscript>4</subscript></entry>
<entry>r<subscript>3</subscript></entry>
<entry>r<subscript>2</subscript></entry>
<entry></entry>
<entry>r<subscript>1</subscript></entry>
<entry>r<subscript>0</subscript></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
<entry></entry>
</row>
<row><!-- id="V4L2-PIX-FMT-BGR24" -->
<entry><constant>V4L2_PIX_FMT_BGR24</constant></entry>
<entry>'BGR3'</entry>

11
Documentation/SubmittingPatches
View file

@ -98,6 +98,17 @@ system, git, as a "commit log". See #15, below.
If your description starts to get long, that's a sign that you probably
need to split up your patch. See #3, next.
When you submit or resubmit a patch or patch series, include the
complete patch description and justification for it. Don't just
say that this is version N of the patch (series). Don't expect the
patch merger to refer back to earlier patch versions or referenced
URLs to find the patch description and put that into the patch.
I.e., the patch (series) and its description should be self-contained.
This benefits both the patch merger(s) and reviewers. Some reviewers
probably didn't even receive earlier versions of the patch.
If the patch fixes a logged bug entry, refer to that bug entry by
number and URL.
3) Separate your changes.

2
Documentation/acpi/method-customizing.txt
View file

@ -19,6 +19,8 @@ Note: Only ACPI METHOD can be overridden, any other object types like
"Device", "OperationRegion", are not recognized.
Note: The same ACPI control method can be overridden for many times,
and it's always the latest one that used by Linux/kernel.
Note: To get the ACPI debug object output (Store (AAAA, Debug)),
please run "echo 1 > /sys/module/acpi/parameters/aml_debug_output".
1. override an existing method
a) get the ACPI table via ACPI sysfs I/F. e.g. to get the DSDT,

11
Documentation/blackfin/00-INDEX
View file

@ -1,11 +1,8 @@
00-INDEX
- This file
cachefeatures.txt
- Supported cache features.
Filesystems
- Requirements for mounting the root file system.
bfin-gpio-note.txt
bfin-gpio-notes.txt
- Notes in developing/using bfin-gpio driver.
bfin-spi-notes.txt
- Notes for using bfin spi bus driver.

169
Documentation/blackfin/Filesystems
View file

@ -1,169 +0,0 @@
/*
* File: Documentation/blackfin/Filesystems
* Based on:
* Author:
*
* Created:
* Description: This file contains the simple DMA Implementation for Blackfin
*
* Rev: $Id: Filesystems 2384 2006-11-01 04:12:43Z magicyang $
*
* Modified:
* Copyright 2004-2006 Analog Devices Inc.
*
* Bugs: Enter bugs at http://blackfin.uclinux.org/
*
*/
How to mount the root file system in uClinux/Blackfin
-----------------------------------------------------
1 Mounting EXT3 File system.
------------------------
Creating an EXT3 File system for uClinux/Blackfin:
Please follow the steps to form the EXT3 File system and mount the same as root
file system.
a Make an ext3 file system as large as you want the final root file
system.
mkfs.ext3 /dev/ram0 <your-rootfs-size-in-1k-blocks>
b Mount this Empty file system on a free directory as:
mount -t ext3 /dev/ram0 ./test
where ./test is the empty directory.
c Copy your root fs directory that you have so carefully made over.
cp -af /tmp/my_final_rootfs_files/* ./test
(For ex: cp -af uClinux-dist/romfs/* ./test)
d If you have done everything right till now you should be able to see
the required "root" dir's (that's etc, root, bin, lib, sbin...)
e Now unmount the file system
umount ./test
f Create the root file system image.
dd if=/dev/ram0 bs=1k count=<your-rootfs-size-in-1k-blocks> \
> ext3fs.img
Now you have to tell the kernel that will be mounting this file system as
rootfs.
So do a make menuconfig under kernel and select the Ext3 journaling file system
support under File system --> submenu.
2. Mounting EXT2 File system.
-------------------------
By default the ext2 file system image will be created if you invoke make from
the top uClinux-dist directory.
3. Mounting CRAMFS File System
----------------------------
To create a CRAMFS file system image execute the command
mkfs.cramfs ./test cramfs.img
where ./test is the target directory.
4. Mounting ROMFS File System
--------------------------
To create a ROMFS file system image execute the command
genromfs -v -V "ROMdisk" -f romfs.img -d ./test
where ./test is the target directory
5. Mounting the JFFS2 Filesystem
-----------------------------
To create a compressed JFFS filesystem (JFFS2), please execute the command
mkfs.jffs2 -d ./test -o jffs2.img
where ./test is the target directory.
However, please make sure the following is in your kernel config.
/*
* RAM/ROM/Flash chip drivers
*/
#define CONFIG_MTD_CFI 1
#define CONFIG_MTD_ROM 1
/*
* Mapping drivers for chip access
*/
#define CONFIG_MTD_COMPLEX_MAPPINGS 1
#define CONFIG_MTD_BF533 1
#undef CONFIG_MTD_UCLINUX
Through the u-boot boot loader, use the jffs2.img in the corresponding
partition made in linux-2.6.x/drivers/mtd/maps/bf533_flash.c.
NOTE - Currently the Flash driver is available only for EZKIT. Watch out for a
STAMP driver soon.
6. Mounting the NFS File system
-----------------------------
For mounting the NFS please do the following in the kernel config.
In Networking Support --> Networking options --> TCP/IP networking -->
IP: kernel level autoconfiguration
Enable BOOTP Support.
In Kernel hacking --> Compiled-in kernel boot parameter add the following
root=/dev/nfs rw ip=bootp
In File system --> Network File system, Enable
NFS file system support --> NFSv3 client support
Root File system on NFS
in uClibc menuconfig, do the following
In Networking Support
enable Remote Procedure Call (RPC) support
Full RPC Support
On the Host side, ensure that /etc/dhcpd.conf looks something like this
ddns-update-style ad-hoc;
allow bootp;
subnet 10.100.4.0 netmask 255.255.255.0 {
default-lease-time 122209600;
max-lease-time 31557600;
group {
host bf533 {
hardware ethernet 00:CF:52:49:C3:01;
fixed-address 10.100.4.50;
option root-path "/home/nfsmount";
}
}
ensure that /etc/exports looks something like this
/home/nfsmount *(rw,no_root_squash,no_all_squash)
run the following commands as root (may differ depending on your
distribution) :
- service nfs start
- service portmap start
- service dhcpd start
- /usr/sbin/exportfs

14
Documentation/blackfin/bfin-spi-notes.txt Normal file
View file

@ -0,0 +1,14 @@
SPI Chip Select behavior:
With the Blackfin on-chip SPI peripheral, there is some logic tied to the CPHA
bit whether the Slave Select Line is controlled by hardware (CPHA=0) or
controlled by software (CPHA=1). However, the Linux SPI bus driver assumes that
the Slave Select is always under software control and being asserted during
the entire SPI transfer. - And not just bits_per_word duration.
In most cases you can utilize SPI MODE_3 instead of MODE_0 to work-around this
behavior. If your SPI slave device in question requires SPI MODE_0 or MODE_2
timing, you can utilize the GPIO controlled SPI Slave Select option instead.
You can even use the same pin whose peripheral role is a SSEL,
but use it as a GPIO instead.

55
Documentation/blackfin/cachefeatures.txt
View file

@ -1,55 +0,0 @@
/*
* File: Documentation/blackfin/cachefeatures.txt
* Based on:
* Author:
*
* Created:
* Description: This file contains the simple DMA Implementation for Blackfin
*
* Rev: $Id: cachefeatures.txt 2384 2006-11-01 04:12:43Z magicyang $
*
* Modified:
* Copyright 2004-2006 Analog Devices Inc.
*
* Bugs: Enter bugs at http://blackfin.uclinux.org/
*
*/
- Instruction and Data cache initialization.
icache_init();
dcache_init();
- Instruction and Data cache Invalidation Routines, when flushing the
same is not required.
_icache_invalidate();
_dcache_invalidate();
Also, for invalidating the entire instruction and data cache, the below
routines are provided (another method for invalidation, refer page no 267 and 287 of
ADSP-BF533 Hardware Reference manual)
invalidate_entire_dcache();
invalidate_entire_icache();
-External Flushing of Instruction and data cache routines.
flush_instruction_cache();
flush_data_cache();
- Internal Flushing of Instruction and Data Cache.
icplb_flush();
dcplb_flush();
- Miscellaneous cache functions.
flush_cache_all();
flush_cache_mm();
invalidate_dcache_range();
flush_dcache_range();
flush_dcache_page();
flush_cache_range();
flush_cache_page();
invalidate_dcache_range();
flush_page_to_ram();

2
Documentation/block/biodoc.txt
View file

@ -7,7 +7,7 @@ Notes Written on Jan 15, 2002:
Last Updated May 2, 2002
September 2003: Updated I/O Scheduler portions
Nick Piggin <piggin@cyberone.com.au>
Nick Piggin <npiggin@kernel.dk>
Introduction:

258
Documentation/coccinelle.txt Normal file
View file

@ -0,0 +1,258 @@
Copyright 2010 Nicolas Palix <npalix@diku.dk>
Copyright 2010 Julia Lawall <julia@diku.dk>
Copyright 2010 Gilles Muller <Gilles.Muller@lip6.fr>
Getting Coccinelle
~~~~~~~~~~~~~~~~~~~~
The semantic patches included in the kernel use the 'virtual rule'
feature which was introduced in Coccinelle version 0.1.11.
Coccinelle (>=0.2.0) is available through the package manager
of many distributions, e.g. :
- Debian (>=squeeze)
- Fedora (>=13)
- Ubuntu (>=10.04 Lucid Lynx)
- OpenSUSE
- Arch Linux
- NetBSD
- FreeBSD
You can get the latest version released from the Coccinelle homepage at
http://coccinelle.lip6.fr/
Once you have it, run the following command:
./configure
make
as a regular user, and install it with
sudo make install
Using Coccinelle on the Linux kernel
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A Coccinelle-specific target is defined in the top level
Makefile. This target is named 'coccicheck' and calls the 'coccicheck'
front-end in the 'scripts' directory.
Four modes are defined: report, patch, context, and org. The mode to
use is specified by setting the MODE variable with 'MODE=<mode>'.
'report' generates a list in the following format:
file:line:column-column: message
'patch' proposes a fix, when possible.
'context' highlights lines of interest and their context in a
diff-like style.Lines of interest are indicated with '-'.
'org' generates a report in the Org mode format of Emacs.
Note that not all semantic patches implement all modes.
To make a report for every semantic patch, run the following command:
make coccicheck MODE=report
NB: The 'report' mode is the default one.
To produce patches, run:
make coccicheck MODE=patch
The coccicheck target applies every semantic patch available in the
subdirectories of 'scripts/coccinelle' to the entire Linux kernel.
For each semantic patch, a changelog message is proposed. It gives a
description of the problem being checked by the semantic patch, and
includes a reference to Coccinelle.
As any static code analyzer, Coccinelle produces false
positives. Thus, reports must be carefully checked, and patches
reviewed.
Using Coccinelle with a single semantic patch
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The optional make variable COCCI can be used to check a single
semantic patch. In that case, the variable must be initialized with
the name of the semantic patch to apply.
For instance:
make coccicheck COCCI=<my_SP.cocci> MODE=patch
or
make coccicheck COCCI=<my_SP.cocci> MODE=report
Proposing new semantic patches
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
New semantic patches can be proposed and submitted by kernel
developers. For sake of clarity, they should be organized in the
subdirectories of 'scripts/coccinelle/'.
Detailed description of the 'report' mode
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
'report' generates a list in the following format:
file:line:column-column: message
Example:
Running
make coccicheck MODE=report COCCI=scripts/coccinelle/err_cast.cocci
will execute the following part of the SmPL script.
<smpl>
@r depends on !context && !patch && (org || report)@
expression x;
position p;
@@
ERR_PTR@p(PTR_ERR(x))
@script:python depends on report@
p << r.p;
x << r.x;
@@
msg="ERR_CAST can be used with %s" % (x)
coccilib.report.print_report(p[0], msg)
</smpl>
This SmPL excerpt generates entries on the standard output, as
illustrated below:
/home/user/linux/crypto/ctr.c:188:9-16: ERR_CAST can be used with alg
/home/user/linux/crypto/authenc.c:619:9-16: ERR_CAST can be used with auth
/home/user/linux/crypto/xts.c:227:9-16: ERR_CAST can be used with alg
Detailed description of the 'patch' mode
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
When the 'patch' mode is available, it proposes a fix for each problem
identified.
Example:
Running
make coccicheck MODE=patch COCCI=scripts/coccinelle/err_cast.cocci
will execute the following part of the SmPL script.
<smpl>
@ depends on !context && patch && !org && !report @
expression x;
@@
- ERR_PTR(PTR_ERR(x))
+ ERR_CAST(x)
</smpl>
This SmPL excerpt generates patch hunks on the standard output, as
illustrated below:
diff -u -p a/crypto/ctr.c b/crypto/ctr.c
--- a/crypto/ctr.c 2010-05-26 10:49:38.000000000 +0200
+++ b/crypto/ctr.c 2010-06-03 23:44:49.000000000 +0200
@@ -185,7 +185,7 @@ static struct crypto_instance *crypto_ct
alg = crypto_attr_alg(tb[1], CRYPTO_ALG_TYPE_CIPHER,
CRYPTO_ALG_TYPE_MASK);
if (IS_ERR(alg))
- return ERR_PTR(PTR_ERR(alg));
+ return ERR_CAST(alg);
/* Block size must be >= 4 bytes. */
err = -EINVAL;
Detailed description of the 'context' mode
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
'context' highlights lines of interest and their context
in a diff-like style.
NOTE: The diff-like output generated is NOT an applicable patch. The
intent of the 'context' mode is to highlight the important lines
(annotated with minus, '-') and gives some surrounding context
lines around. This output can be used with the diff mode of
Emacs to review the code.
Example:
Running
make coccicheck MODE=context COCCI=scripts/coccinelle/err_cast.cocci
will execute the following part of the SmPL script.
<smpl>
@ depends on context && !patch && !org && !report@
expression x;
@@
* ERR_PTR(PTR_ERR(x))
</smpl>
This SmPL excerpt generates diff hunks on the standard output, as
illustrated below:
diff -u -p /home/user/linux/crypto/ctr.c /tmp/nothing
--- /home/user/linux/crypto/ctr.c 2010-05-26 10:49:38.000000000 +0200
+++ /tmp/nothing
@@ -185,7 +185,6 @@ static struct crypto_instance *crypto_ct
alg = crypto_attr_alg(tb[1], CRYPTO_ALG_TYPE_CIPHER,
CRYPTO_ALG_TYPE_MASK);
if (IS_ERR(alg))
- return ERR_PTR(PTR_ERR(alg));
/* Block size must be >= 4 bytes. */
err = -EINVAL;
Detailed description of the 'org' mode
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
'org' generates a report in the Org mode format of Emacs.
Example:
Running
make coccicheck MODE=org COCCI=scripts/coccinelle/err_cast.cocci
will execute the following part of the SmPL script.
<smpl>
@r depends on !context && !patch && (org || report)@
expression x;
position p;
@@
ERR_PTR@p(PTR_ERR(x))
@script:python depends on org@
p << r.p;
x << r.x;
@@
msg="ERR_CAST can be used with %s" % (x)
msg_safe=msg.replace("[","@(").replace("]",")")
coccilib.org.print_todo(p[0], msg_safe)
</smpl>
This SmPL excerpt generates Org entries on the standard output, as
illustrated below:
* TODO [[view:/home/user/linux/crypto/ctr.c::face=ovl-face1::linb=188::colb=9::cole=16][ERR_CAST can be used with alg]]
* TODO [[view:/home/user/linux/crypto/authenc.c::face=ovl-face1::linb=619::colb=9::cole=16][ERR_CAST can be used with auth]]
* TODO [[view:/home/user/linux/crypto/xts.c::face=ovl-face1::linb=227::colb=9::cole=16][ERR_CAST can be used with alg]]

2
Documentation/cpu-hotplug.txt
View file

@ -2,7 +2,7 @@
Maintainers:
CPU Hotplug Core:
Rusty Russell <rusty@rustycorp.com.au>
Rusty Russell <rusty@rustcorp.com.au>
Srivatsa Vaddagiri <vatsa@in.ibm.com>
i386:
Zwane Mwaikambo <zwane@arm.linux.org.uk>

1
Documentation/devices.txt
View file

@ -445,6 +445,7 @@ Your cooperation is appreciated.
233 = /dev/kmview View-OS A process with a view
234 = /dev/btrfs-control Btrfs control device
235 = /dev/autofs Autofs control device
236 = /dev/mapper/control Device-Mapper control device
240-254 Reserved for local use
255 Reserved for MISC_DYNAMIC_MINOR

83
Documentation/feature-removal-schedule.txt
View file

@ -116,29 +116,6 @@ Who: Mauro Carvalho Chehab <mchehab@infradead.org>
---------------------------
What: PCMCIA control ioctl (needed for pcmcia-cs [cardmgr, cardctl])
When: 2.6.35/2.6.36
Files: drivers/pcmcia/: pcmcia_ioctl.c
Why: With the 16-bit PCMCIA subsystem now behaving (almost) like a
normal hotpluggable bus, and with it using the default kernel
infrastructure (hotplug, driver core, sysfs) keeping the PCMCIA
control ioctl needed by cardmgr and cardctl from pcmcia-cs is
unnecessary and potentially harmful (it does not provide for
proper locking), and makes further cleanups and integration of the
PCMCIA subsystem into the Linux kernel device driver model more
difficult. The features provided by cardmgr and cardctl are either
handled by the kernel itself now or are available in the new
pcmciautils package available at
http://kernel.org/pub/linux/utils/kernel/pcmcia/
For all architectures except ARM, the associated config symbol
has been removed from kernel 2.6.34; for ARM, it will be likely
be removed from kernel 2.6.35. The actual code will then likely
be removed from kernel 2.6.36.
Who: Dominik Brodowski <linux@dominikbrodowski.net>
---------------------------
What: sys_sysctl
When: September 2010
Option: CONFIG_SYSCTL_SYSCALL
@ -174,6 +151,31 @@ Who: Eric Biederman <ebiederm@xmission.com>
---------------------------
What: /proc/<pid>/oom_adj
When: August 2012
Why: /proc/<pid>/oom_adj allows userspace to influence the oom killer's
badness heuristic used to determine which task to kill when the kernel
is out of memory.
The badness heuristic has since been rewritten since the introduction of
this tunable such that its meaning is deprecated. The value was
implemented as a bitshift on a score generated by the badness()
function that did not have any precise units of measure. With the
rewrite, the score is given as a proportion of available memory to the
task allocating pages, so using a bitshift which grows the score
exponentially is, thus, impossible to tune with fine granularity.
A much more powerful interface, /proc/<pid>/oom_score_adj, was
introduced with the oom killer rewrite that allows users to increase or
decrease the badness() score linearly. This interface will replace
/proc/<pid>/oom_adj.
A warning will be emitted to the kernel log if an application uses this
deprecated interface. After it is printed once, future warnings will be
suppressed until the kernel is rebooted.
---------------------------
What: remove EXPORT_SYMBOL(kernel_thread)
When: August 2006
Files: arch/*/kernel/*_ksyms.c
@ -358,14 +360,6 @@ When: 2.6.33
Why: Should be implemented in userspace, policy daemon.
Who: Johannes Berg <johannes@sipsolutions.net>
---------------------------
What: CONFIG_INOTIFY
When: 2.6.33
Why: last user (audit) will be converted to the newer more generic
and more easily maintained fsnotify subsystem
Who: Eric Paris <eparis@redhat.com>
----------------------------
What: sound-slot/service-* module aliases and related clutters in
@ -468,16 +462,6 @@ Who: Jan Kiszka <jan.kiszka@web.de>
----------------------------
What: xtime, wall_to_monotonic
When: 2.6.36+
Files: kernel/time/timekeeping.c include/linux/time.h
Why: Cleaning up timekeeping internal values. Please use
existing timekeeping accessor functions to access
the equivalent functionality.
Who: John Stultz <johnstul@us.ibm.com>
----------------------------
What: KVM paravirt mmu host support
When: January 2011
Why: The paravirt mmu host support is slower than non-paravirt mmu, both
@ -563,3 +547,20 @@ Why: superseded by acpi_sleep=nonvs
Who: Rafael J. Wysocki <rjw@sisk.pl>
----------------------------
What: PCI DMA unmap state API
When: August 2012
Why: PCI DMA unmap state API (include/linux/pci-dma.h) was replaced
with DMA unmap state API (DMA unmap state API can be used for
any bus).
Who: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
----------------------------
What: DMA_xxBIT_MASK macros
When: Jun 2011
Why: DMA_xxBIT_MASK macros were replaced with DMA_BIT_MASK() macros.
Who: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
----------------------------

30
Documentation/filesystems/Locking
View file

@ -92,8 +92,8 @@ prototypes:
void (*destroy_inode)(struct inode *);
void (*dirty_inode) (struct inode *);
int (*write_inode) (struct inode *, int);
void (*drop_inode) (struct inode *);
void (*delete_inode) (struct inode *);
int (*drop_inode) (struct inode *);
void (*evict_inode) (struct inode *);
void (*put_super) (struct super_block *);
void (*write_super) (struct super_block *);
int (*sync_fs)(struct super_block *sb, int wait);
@ -101,14 +101,13 @@ prototypes:
int (*unfreeze_fs) (struct super_block *);
int (*statfs) (struct dentry *, struct kstatfs *);
int (*remount_fs) (struct super_block *, int *, char *);
void (*clear_inode) (struct inode *);
void (*umount_begin) (struct super_block *);
int (*show_options)(struct seq_file *, struct vfsmount *);
ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t);
ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t);
locking rules:
All may block.
All may block [not true, see below]
None have BKL
s_umount
alloc_inode:
@ -116,22 +115,25 @@ destroy_inode:
dirty_inode: (must not sleep)
write_inode:
drop_inode: !!!inode_lock!!!
delete_inode:
evict_inode:
put_super: write
write_super: read
sync_fs: read
freeze_fs: read
unfreeze_fs: read
statfs: no
remount_fs: maybe (see below)
clear_inode:
statfs: maybe(read) (see below)
remount_fs: write
umount_begin: no
show_options: no (namespace_sem)
quota_read: no (see below)
quota_write: no (see below)
->remount_fs() will have the s_umount exclusive lock if it's already mounted.
When called from get_sb_single, it does NOT have the s_umount lock.
->statfs() has s_umount (shared) when called by ustat(2) (native or
compat), but that's an accident of bad API; s_umount is used to pin
the superblock down when we only have dev_t given us by userland to
identify the superblock. Everything else (statfs(), fstatfs(), etc.)
doesn't hold it when calling ->statfs() - superblock is pinned down
by resolving the pathname passed to syscall.
->quota_read() and ->quota_write() functions are both guaranteed to
be the only ones operating on the quota file by the quota code (via
dqio_sem) (unless an admin really wants to screw up something and
@ -372,8 +374,6 @@ prototypes:
ssize_t (*aio_write) (struct kiocb *, const struct iovec *, unsigned long, loff_t);
int (*readdir) (struct file *, void *, filldir_t);
unsigned int (*poll) (struct file *, struct poll_table_struct *);
int (*ioctl) (struct inode *, struct file *, unsigned int,
unsigned long);
long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
int (*mmap) (struct file *, struct vm_area_struct *);
@ -407,8 +407,7 @@ write: no
aio_write: no
readdir: no
poll: no
ioctl: yes (see below)
unlocked_ioctl: no (see below)
unlocked_ioctl: no
compat_ioctl: no
mmap: no
open: no
@ -451,9 +450,6 @@ move ->readdir() to inode_operations and use a separate method for directory
anything that resembles union-mount we won't have a struct file for all
components. And there are other reasons why the current interface is a mess...
->ioctl() on regular files is superceded by the ->unlocked_ioctl() that
doesn't take the BKL.
->read on directories probably must go away - we should just enforce -EISDIR
in sys_read() and friends.

10
Documentation/filesystems/caching/fscache.txt
View file

@ -343,8 +343,8 @@ This will look something like:
[root@andromeda ~]# head /proc/fs/fscache/objects
OBJECT PARENT STAT CHLDN OPS OOP IPR EX READS EM EV F S | NETFS_COOKIE_DEF TY FL NETFS_DATA OBJECT_KEY, AUX_DATA
======== ======== ==== ===== === === === == ===== == == = = | ================ == == ================ ================
17e4b 2 ACTV 0 0 0 0 0 0 7b 4 0 8 | NFS.fh DT 0 ffff88001dd82820 010006017edcf8bbc93b43298fdfbe71e50b57b13a172c0117f38472, e567634700000000000000000000000063f2404a000000000000000000000000c9030000000000000000000063f2404a
1693a 2 ACTV 0 0 0 0 0 0 7b 4 0 8 | NFS.fh DT 0 ffff88002db23380 010006017edcf8bbc93b43298fdfbe71e50b57b1e0162c01a2df0ea6, 420ebc4a000000000000000000000000420ebc4a0000000000000000000000000e1801000000000000000000420ebc4a
17e4b 2 ACTV 0 0 0 0 0 0 7b 4 0 0 | NFS.fh DT 0 ffff88001dd82820 010006017edcf8bbc93b43298fdfbe71e50b57b13a172c0117f38472, e567634700000000000000000000000063f2404a000000000000000000000000c9030000000000000000000063f2404a
1693a 2 ACTV 0 0 0 0 0 0 7b 4 0 0 | NFS.fh DT 0 ffff88002db23380 010006017edcf8bbc93b43298fdfbe71e50b57b1e0162c01a2df0ea6, 420ebc4a000000000000000000000000420ebc4a0000000000000000000000000e1801000000000000000000420ebc4a
where the first set of columns before the '|' describe the object:
@ -362,7 +362,7 @@ where the first set of columns before the '|' describe the object:
EM Object's event mask
EV Events raised on this object
F Object flags
S Object slow-work work item flags
S Object work item busy state mask (1:pending 2:running)
and the second set of columns describe the object's cookie, if present:
@ -395,8 +395,8 @@ and the following paired letters:
w Show objects that don't have pending writes
R Show objects that have outstanding reads
r Show objects that don't have outstanding reads
S Show objects that have slow work queued
s Show objects that don't have slow work queued
S Show objects that have work queued
s Show objects that don't have work queued
If neither side of a letter pair is given, then both are implied. For example:

12
Documentation/filesystems/nilfs2.txt
View file

@ -49,7 +49,10 @@ Mount options
NILFS2 supports the following mount options:
(*) == default
nobarrier Disables barriers.
barrier(*) This enables/disables the use of write barriers. This
nobarrier requires an IO stack which can support barriers, and
if nilfs gets an error on a barrier write, it will
disable again with a warning.
errors=continue Keep going on a filesystem error.
errors=remount-ro(*) Remount the filesystem read-only on an error.
errors=panic Panic and halt the machine if an error occurs.
@ -74,9 +77,10 @@ norecovery Disable recovery of the filesystem on mount.
This disables every write access on the device for
read-only mounts or snapshots. This option will fail
for r/w mounts on an unclean volume.
discard Issue discard/TRIM commands to the underlying block
device when blocks are freed. This is useful for SSD
devices and sparse/thinly-provisioned LUNs.
discard This enables/disables the use of discard/TRIM commands.
nodiscard(*) The discard/TRIM commands are sent to the underlying
block device when blocks are freed. This is useful
for SSD devices and sparse/thinly-provisioned LUNs.
NILFS2 usage
============

45
Documentation/filesystems/porting
View file

@ -273,3 +273,48 @@ it's safe to remove it. If you don't need it, remove it.
deliberate; as soon as struct block_device * is propagated in a reasonable
way by that code fixing will become trivial; until then nothing can be
done.
[mandatory]
block truncatation on error exit from ->write_begin, and ->direct_IO
moved from generic methods (block_write_begin, cont_write_begin,
nobh_write_begin, blockdev_direct_IO*) to callers. Take a look at
ext2_write_failed and callers for an example.
[mandatory]
->truncate is going away. The whole truncate sequence needs to be
implemented in ->setattr, which is now mandatory for filesystems
implementing on-disk size changes. Start with a copy of the old inode_setattr
and vmtruncate, and the reorder the vmtruncate + foofs_vmtruncate sequence to
be in order of zeroing blocks using block_truncate_page or similar helpers,
size update and on finally on-disk truncation which should not fail.
inode_change_ok now includes the size checks for ATTR_SIZE and must be called
in the beginning of ->setattr unconditionally.
[mandatory]
->clear_inode() and ->delete_inode() are gone; ->evict_inode() should
be used instead. It gets called whenever the inode is evicted, whether it has
remaining links or not. Caller does *not* evict the pagecache or inode-associated
metadata buffers; getting rid of those is responsibility of method, as it had
been for ->delete_inode().
->drop_inode() returns int now; it's called on final iput() with inode_lock
held and it returns true if filesystems wants the inode to be dropped. As before,
generic_drop_inode() is still the default and it's been updated appropriately.
generic_delete_inode() is also alive and it consists simply of return 1. Note that
all actual eviction work is done by caller after ->drop_inode() returns.
clear_inode() is gone; use end_writeback() instead. As before, it must
be called exactly once on each call of ->evict_inode() (as it used to be for
each call of ->delete_inode()). Unlike before, if you are using inode-associated
metadata buffers (i.e. mark_buffer_dirty_inode()), it's your responsibility to
call invalidate_inode_buffers() before end_writeback().
No async writeback (and thus no calls of ->write_inode()) will happen
after end_writeback() returns, so actions that should not overlap with ->write_inode()
(e.g. freeing on-disk inode if i_nlink is 0) ought to be done after that call.
NOTE: checking i_nlink in the beginning of ->write_inode() and bailing out
if it's zero is not *and* *never* *had* *been* enough. Final unlink() and iput()
may happen while the inode is in the middle of ->write_inode(); e.g. if you blindly
free the on-disk inode, you may end up doing that while ->write_inode() is writing
to it.

85
Documentation/filesystems/proc.txt
View file

@ -33,7 +33,8 @@ Table of Contents
2 Modifying System Parameters
3 Per-Process Parameters
3.1 /proc/<pid>/oom_adj - Adjust the oom-killer score
3.1 /proc/<pid>/oom_adj & /proc/<pid>/oom_score_adj - Adjust the oom-killer
score
3.2 /proc/<pid>/oom_score - Display current oom-killer score
3.3 /proc/<pid>/io - Display the IO accounting fields
3.4 /proc/<pid>/coredump_filter - Core dump filtering settings
@ -1234,42 +1235,64 @@ of the kernel.
CHAPTER 3: PER-PROCESS PARAMETERS
------------------------------------------------------------------------------
3.1 /proc/<pid>/oom_adj - Adjust the oom-killer score
------------------------------------------------------
3.1 /proc/<pid>/oom_adj & /proc/<pid>/oom_score_adj- Adjust the oom-killer score
--------------------------------------------------------------------------------
This file can be used to adjust the score used to select which processes
should be killed in an out-of-memory situation. Giving it a high score will
increase the likelihood of this process being killed by the oom-killer. Valid
values are in the range -16 to +15, plus the special value -17, which disables
oom-killing altogether for this process.
These file can be used to adjust the badness heuristic used to select which
process gets killed in out of memory conditions.
The process to be killed in an out-of-memory situation is selected among all others
based on its badness score. This value equals the original memory size of the process
and is then updated according to its CPU time (utime + stime) and the
run time (uptime - start time). The longer it runs the smaller is the score.
Badness score is divided by the square root of the CPU time and then by
the double square root of the run time.
The badness heuristic assigns a value to each candidate task ranging from 0
(never kill) to 1000 (always kill) to determine which process is targeted. The
units are roughly a proportion along that range of allowed memory the process
may allocate from based on an estimation of its current memory and swap use.
For example, if a task is using all allowed memory, its badness score will be
1000. If it is using half of its allowed memory, its score will be 500.
Swapped out tasks are killed first. Half of each child's memory size is added to
the parent's score if they do not share the same memory. Thus forking servers
are the prime candidates to be killed. Having only one 'hungry' child will make
parent less preferable than the child.
There is an additional factor included in the badness score: root
processes are given 3% extra memory over other tasks.
/proc/<pid>/oom_score shows process' current badness score.
The amount of "allowed" memory depends on the context in which the oom killer
was called. If it is due to the memory assigned to the allocating task's cpuset
being exhausted, the allowed memory represents the set of mems assigned to that
cpuset. If it is due to a mempolicy's node(s) being exhausted, the allowed
memory represents the set of mempolicy nodes. If it is due to a memory
limit (or swap limit) being reached, the allowed memory is that configured
limit. Finally, if it is due to the entire system being out of memory, the
allowed memory represents all allocatable resources.
The following heuristics are then applied:
* if the task was reniced, its score doubles
* superuser or direct hardware access tasks (CAP_SYS_ADMIN, CAP_SYS_RESOURCE
or CAP_SYS_RAWIO) have their score divided by 4
* if oom condition happened in one cpuset and checked process does not belong
to it, its score is divided by 8
* the resulting score is multiplied by two to the power of oom_adj, i.e.
points <<= oom_adj when it is positive and
points >>= -(oom_adj) otherwise
The value of /proc/<pid>/oom_score_adj is added to the badness score before it
is used to determine which task to kill. Acceptable values range from -1000
(OOM_SCORE_ADJ_MIN) to +1000 (OOM_SCORE_ADJ_MAX). This allows userspace to
polarize the preference for oom killing either by always preferring a certain
task or completely disabling it. The lowest possible value, -1000, is
equivalent to disabling oom killing entirely for that task since it will always
report a badness score of 0.
Consequently, it is very simple for userspace to define the amount of memory to
consider for each task. Setting a /proc/<pid>/oom_score_adj value of +500, for
example, is roughly equivalent to allowing the remainder of tasks sharing the
same system, cpuset, mempolicy, or memory controller resources to use at least
50% more memory. A value of -500, on the other hand, would be roughly
equivalent to discounting 50% of the task's allowed memory from being considered
as scoring against the task.
For backwards compatibility with previous kernels, /proc/<pid>/oom_adj may also
be used to tune the badness score. Its acceptable values range from -16
(OOM_ADJUST_MIN) to +15 (OOM_ADJUST_MAX) and a special value of -17
(OOM_DISABLE) to disable oom killing entirely for that task. Its value is
scaled linearly with /proc/<pid>/oom_score_adj.
Writing to /proc/<pid>/oom_score_adj or /proc/<pid>/oom_adj will change the
other with its scaled value.
NOTICE: /proc/<pid>/oom_adj is deprecated and will be removed, please see
Documentation/feature-removal-schedule.txt.
Caveat: when a parent task is selected, the oom killer will sacrifice any first
generation children with seperate address spaces instead, if possible. This
avoids servers and important system daemons from being killed and loses the
minimal amount of work.
The task with the highest badness score is then selected and its children
are killed, process itself will be killed in an OOM situation when it does
not have children or some of them disabled oom like described above.
3.2 /proc/<pid>/oom_score - Display current oom-killer score
-------------------------------------------------------------

2
Documentation/filesystems/squashfs.txt
View file

@ -2,7 +2,7 @@ SQUASHFS 4.0 FILESYSTEM
=======================
Squashfs is a compressed read-only filesystem for Linux.
It uses zlib compression to compress files, inodes and directories.
It uses zlib/lzo compression to compress files, inodes and directories.
Inodes in the system are very small and all blocks are packed to minimise
data overhead. Block sizes greater than 4K are supported up to a maximum
of 1Mbytes (default block size 128K).

7
Documentation/filesystems/sysfs-pci.txt
View file

@ -39,7 +39,7 @@ files, each with their own function.
local_cpus nearby CPU mask (cpumask, ro)
remove remove device from kernel's list (ascii, wo)
resource PCI resource host addresses (ascii, ro)
resource0..N PCI resource N, if present (binary, mmap)
resource0..N PCI resource N, if present (binary, mmap, rw[1])
resource0_wc..N_wc PCI WC map resource N, if prefetchable (binary, mmap)
rom PCI ROM resource, if present (binary, ro)
subsystem_device PCI subsystem device (ascii, ro)
@ -54,13 +54,16 @@ files, each with their own function.
binary - file contains binary data
cpumask - file contains a cpumask type
[1] rw for RESOURCE_IO (I/O port) regions only
The read only files are informational, writes to them will be ignored, with
the exception of the 'rom' file. Writable files can be used to perform
actions on the device (e.g. changing config space, detaching a device).
mmapable files are available via an mmap of the file at offset 0 and can be
used to do actual device programming from userspace. Note that some platforms
don't support mmapping of certain resources, so be sure to check the return
value from any attempted mmap.
value from any attempted mmap. The most notable of these are I/O port
resources, which also provide read/write access.
The 'enable' file provides a counter that indicates how many times the device
has been enabled. If the 'enable' file currently returns '4', and a '1' is

46
Documentation/filesystems/sysfs.txt
View file

@ -4,7 +4,7 @@ sysfs - _The_ filesystem for exporting kernel objects.
Patrick Mochel <mochel@osdl.org>
Mike Murphy <mamurph@cs.clemson.edu>
Revised: 22 February 2009
Revised: 15 July 2010
Original: 10 January 2003
@ -124,7 +124,7 @@ show and store methods of the attribute owners.
struct sysfs_ops {
ssize_t (*show)(struct kobject *, struct attribute *, char *);
ssize_t (*store)(struct kobject *, struct attribute *, const char *);
ssize_t (*store)(struct kobject *, struct attribute *, const char *, size_t);
};
[ Subsystems should have already defined a struct kobj_type as a
@ -139,18 +139,22 @@ calls the associated methods.
To illustrate:
#define to_dev(obj) container_of(obj, struct device, kobj)
#define to_dev_attr(_attr) container_of(_attr, struct device_attribute, attr)
#define to_dev(d) container_of(d, struct device, kobj)
static ssize_t
dev_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
static ssize_t dev_attr_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct device_attribute * dev_attr = to_dev_attr(attr);
struct device * dev = to_dev(kobj);
ssize_t ret = 0;
struct device_attribute *dev_attr = to_dev_attr(attr);
struct device *dev = to_dev(kobj);
ssize_t ret = -EIO;
if (dev_attr->show)
ret = dev_attr->show(dev, buf);
ret = dev_attr->show(dev, dev_attr, buf);
if (ret >= (ssize_t)PAGE_SIZE) {
print_symbol("dev_attr_show: %s returned bad count\n",
(unsigned long)dev_attr->show);
}
return ret;
}
@ -163,10 +167,9 @@ To read or write attributes, show() or store() methods must be
specified when declaring the attribute. The method types should be as
simple as those defined for device attributes:
ssize_t (*show)(struct device * dev, struct device_attribute * attr,
char * buf);
ssize_t (*store)(struct device * dev, struct device_attribute * attr,
const char * buf);
ssize_t (*show)(struct device *dev, struct device_attribute *attr, char *buf);
ssize_t (*store)(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count);
IOW, they should take only an object, an attribute, and a buffer as parameters.
@ -209,8 +212,8 @@ Other notes:
- show() should always use snprintf().
- store() should return the number of bytes used from the buffer. This
can be done using strlen().
- store() should return the number of bytes used from the buffer. If the
entire buffer has been used, just return the count argument.
- show() or store() can always return errors. If a bad value comes
through, be sure to return an error.
@ -223,15 +226,18 @@ Other notes:
A very simple (and naive) implementation of a device attribute is:
static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf)
static ssize_t show_name(struct device *dev, struct device_attribute *attr,
char *buf)
{
return snprintf(buf, PAGE_SIZE, "%s\n", dev->name);
}
static ssize_t store_name(struct device * dev, const char * buf)
static ssize_t store_name(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
sscanf(buf, "%20s", dev->name);
return strnlen(buf, PAGE_SIZE);
snprintf(dev->name, sizeof(dev->name), "%.*s",
(int)min(count, sizeof(dev->name) - 1), buf);
return count;
}
static DEVICE_ATTR(name, S_IRUGO, show_name, store_name);
@ -327,7 +333,7 @@ Structure:
struct bus_attribute {
struct attribute attr;
ssize_t (*show)(struct bus_type *, char * buf);
ssize_t (*store)(struct bus_type *, const char * buf);
ssize_t (*store)(struct bus_type *, const char * buf, size_t count);
};
Declaring:

6
Documentation/filesystems/vfs.txt
View file

@ -727,7 +727,6 @@ struct file_operations {
ssize_t (*aio_write) (struct kiocb *, const struct iovec *, unsigned long, loff_t);
int (*readdir) (struct file *, void *, filldir_t);
unsigned int (*poll) (struct file *, struct poll_table_struct *);
int (*ioctl) (struct inode *, struct file *, unsigned int, unsigned long);
long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
int (*mmap) (struct file *, struct vm_area_struct *);
@ -768,10 +767,7 @@ otherwise noted.
activity on this file and (optionally) go to sleep until there
is activity. Called by the select(2) and poll(2) system calls
ioctl: called by the ioctl(2) system call
unlocked_ioctl: called by the ioctl(2) system call. Filesystems that do not
require the BKL should use this method instead of the ioctl() above.
unlocked_ioctl: called by the ioctl(2) system call.
compat_ioctl: called by the ioctl(2) system call when 32 bit system calls
are used on 64 bit kernels.

17
Documentation/firmware_class/hotplug-script
View file

@ -6,11 +6,12 @@
HOTPLUG_FW_DIR=/usr/lib/hotplug/firmware/
echo 1 > /sys/$DEVPATH/loading
cat $HOTPLUG_FW_DIR/$FIRMWARE > /sys/$DEVPATH/data
echo 0 > /sys/$DEVPATH/loading
# To cancel the load in case of error:
#
# echo -1 > /sys/$DEVPATH/loading
#
if [ "$SUBSYSTEM" == "firmware" -a "$ACTION" == "add" ]; then
if [ -f $HOTPLUG_FW_DIR/$FIRMWARE ]; then
echo 1 > /sys/$DEVPATH/loading
cat $HOTPLUG_FW_DIR/$FIRMWARE > /sys/$DEVPATH/data
echo 0 > /sys/$DEVPATH/loading
else
echo -1 > /sys/$DEVPATH/loading
fi
fi

35
Documentation/gpio.txt
View file

@ -158,10 +158,11 @@ and configure pullups/pulldowns appropriately.)
Spinlock-Safe GPIO access
-------------------------
Most GPIO controllers can be accessed with memory read/write instructions.
That doesn't need to sleep, and can safely be done from inside IRQ handlers.
(That includes hardirq contexts on RT kernels.)
Those don't need to sleep, and can safely be done from inside hard
(nonthreaded) IRQ handlers and similar contexts.
Use these calls to access such GPIOs:
Use the following calls to access such GPIOs,
for which gpio_cansleep() will always return false (see below):
/* GPIO INPUT: return zero or nonzero */
int gpio_get_value(unsigned gpio);
@ -210,9 +211,31 @@ To access such GPIOs, a different set of accessors is defined:
/* GPIO OUTPUT, might sleep */
void gpio_set_value_cansleep(unsigned gpio, int value);
Other than the fact that these calls might sleep, and will not be ignored
for GPIOs that can't be accessed from IRQ handlers, these calls act the
same as the spinlock-safe calls.
Accessing such GPIOs requires a context which may sleep, for example
a threaded IRQ handler, and those accessors must be used instead of
spinlock-safe accessors without the cansleep() name suffix.
Other than the fact that these accessors might sleep, and will work
on GPIOs that can't be accessed from hardIRQ handlers, these calls act
the same as the spinlock-safe calls.
** IN ADDITION ** calls to setup and configure such GPIOs must be made
from contexts which may sleep, since they may need to access the GPIO
controller chip too: (These setup calls are usually made from board
setup or driver probe/teardown code, so this is an easy constraint.)
gpio_direction_input()
gpio_direction_output()
gpio_request()
## gpio_request_one()
## gpio_request_array()
## gpio_free_array()
gpio_free()
gpio_set_debounce()
Claiming and Releasing GPIOs

105
Documentation/hwmon/coretemp
View file

@ -21,8 +21,8 @@ Temperature is measured in degrees Celsius and measurement resolution is
1 degree C. Valid temperatures are from 0 to TjMax degrees C, because
the actual value of temperature register is in fact a delta from TjMax.
Temperature known as TjMax is the maximum junction temperature of processor.
Intel defines this temperature as 85C or 100C. At this temperature, protection
Temperature known as TjMax is the maximum junction temperature of processor,
which depends on the CPU model. See table below. At this temperature, protection
mechanism will perform actions to forcibly cool down the processor. Alarm
may be raised, if the temperature grows enough (more than TjMax) to trigger
the Out-Of-Spec bit. Following table summarizes the exported sysfs files:
@ -38,3 +38,104 @@ temp1_label - Contains string "Core X", where X is processor
The TjMax temperature is set to 85 degrees C if undocumented model specific
register (UMSR) 0xee has bit 30 set. If not the TjMax is 100 degrees C as
(sometimes) documented in processor datasheet.
Appendix A. Known TjMax lists (TBD):
Some information comes from ark.intel.com
Process Processor TjMax(C)
32nm Core i3/i5/i7 Processors
i7 660UM/640/620, 640LM/620, 620M, 610E 105
i5 540UM/520/430, 540M/520/450/430 105
i3 330E, 370M/350/330 90 rPGA, 105 BGA
i3 330UM 105
32nm Core i7 Extreme Processors
980X 100
32nm Celeron Processors
U3400 105
P4505/P4500 90
45nm Xeon Processors 5400 Quad-Core
X5492, X5482, X5472, X5470, X5460, X5450 85
E5472, E5462, E5450/40/30/20/10/05 85
L5408 95
L5430, L5420, L5410 70
45nm Xeon Processors 5200 Dual-Core
X5282, X5272, X5270, X5260 90
E5240 90
E5205, E5220 70, 90
L5240 70
L5238, L5215 95
45nm Atom Processors
D525/510/425/410 100
Z560/550/540/530P/530/520PT/520/515/510PT/510P 90
Z510/500 90
N475/470/455/450 100
N280/270 90
330/230 125
45nm Core2 Processors
Solo ULV SU3500/3300 100
T9900/9800/9600/9550/9500/9400/9300/8300/8100 105
T6670/6500/6400 105
T6600 90
SU9600/9400/9300 105
SP9600/9400 105
SL9600/9400/9380/9300 105
P9700/9600/9500/8800/8700/8600/8400/7570 105
P7550/7450 90
45nm Core2 Quad Processors
Q9100/9000 100
45nm Core2 Extreme Processors
X9100/9000 105
QX9300 100
45nm Core i3/i5/i7 Processors
i7 940XM/920 100
i7 840QM/820/740/720 100
45nm Celeron Processors
SU2300 100
900 105
65nm Core2 Duo Processors
Solo U2200, U2100 100
U7700/7600/7500 100
T7800/7700/7600/7500/7400/7300/7250/7200/7100 100
T5870/5670/5600/5550/5500/5470/5450/5300/5270 100
T5250 100
T5800/5750/5200 85
L7700/7500/7400/7300/7200 100
65nm Core2 Extreme Processors
X7900/7800 100
65nm Core Duo Processors
U2500/2400 100
T2700/2600/2450/2400/2350/2300E/2300/2250/2050 100
L2500/2400/2300 100
65nm Core Solo Processors
U1500/1400/1300 100
T1400/1350/1300/1250 100
65nm Xeon Processors 5000 Quad-Core
X5000 90-95
E5000 80
L5000 70
L5318 95
65nm Xeon Processors 5000 Dual-Core
5080, 5063, 5060, 5050, 5030 80-90
5160, 5150, 5148, 5140, 5130, 5120, 5110 80
L5138 100
65nm Celeron Processors
T1700/1600 100
560/550/540/530 100

33
Documentation/hwmon/emc2103 Normal file
View file

@ -0,0 +1,33 @@
Kernel driver emc2103
======================
Supported chips:
* SMSC EMC2103
Addresses scanned: I2C 0x2e
Prefix: 'emc2103'
Datasheet: Not public
Authors:
Steve Glendinning <steve.glendinning@smsc.com>
Description
-----------
The Standard Microsystems Corporation (SMSC) EMC2103 chips
contain up to 4 temperature sensors and a single fan controller.
Fan rotation speeds are reported in RPM (rotations per minute). An alarm is
triggered if the rotation speed has dropped below a programmable limit. Fan
readings can be divided by a programmable divider (1, 2, 4 or 8) to give
the readings more range or accuracy. Not all RPM values can accurately be
represented, so some rounding is done. With a divider of 1, the lowest
representable value is 480 RPM.
This driver supports RPM based control, to use this a fan target
should be written to fan1_target and pwm1_enable should be set to 3.
The 2103-2 and 2103-4 variants have a third temperature sensor, which can
be connected to two anti-parallel diodes. These values can be read
as temp3 and temp4. If only one diode is attached to this channel, temp4
will show as "fault". The module parameter "apd=0" can be used to suppress
this 4th channel when anti-parallel diodes are not fitted.

97
Documentation/hwmon/jc42 Normal file
View file

@ -0,0 +1,97 @@
Kernel driver jc42
==================
Supported chips:
* Analog Devices ADT7408
Prefix: 'adt7408'
Addresses scanned: I2C 0x18 - 0x1f
Datasheets:
http://www.analog.com/static/imported-files/data_sheets/ADT7408.pdf
* IDT TSE2002B3, TS3000B3
Prefix: 'tse2002b3', 'ts3000b3'
Addresses scanned: I2C 0x18 - 0x1f
Datasheets:
http://www.idt.com/products/getdoc.cfm?docid=18715691
http://www.idt.com/products/getdoc.cfm?docid=18715692
* Maxim MAX6604
Prefix: 'max6604'
Addresses scanned: I2C 0x18 - 0x1f
Datasheets:
http://datasheets.maxim-ic.com/en/ds/MAX6604.pdf
* Microchip MCP9805, MCP98242, MCP98243, MCP9843
Prefixes: 'mcp9805', 'mcp98242', 'mcp98243', 'mcp9843'
Addresses scanned: I2C 0x18 - 0x1f
Datasheets:
http://ww1.microchip.com/downloads/en/DeviceDoc/21977b.pdf
http://ww1.microchip.com/downloads/en/DeviceDoc/21996a.pdf
http://ww1.microchip.com/downloads/en/DeviceDoc/22153c.pdf
* NXP Semiconductors SE97, SE97B
Prefix: 'se97'
Addresses scanned: I2C 0x18 - 0x1f
Datasheets:
http://www.nxp.com/documents/data_sheet/SE97.pdf
http://www.nxp.com/documents/data_sheet/SE97B.pdf
* NXP Semiconductors SE98
Prefix: 'se98'
Addresses scanned: I2C 0x18 - 0x1f
Datasheets:
http://www.nxp.com/documents/data_sheet/SE98.pdf
* ON Semiconductor CAT34TS02, CAT6095
Prefix: 'cat34ts02', 'cat6095'
Addresses scanned: I2C 0x18 - 0x1f
Datasheet:
http://www.onsemi.com/pub_link/Collateral/CAT34TS02-D.PDF
http://www.onsemi.com/pub/Collateral/CAT6095-D.PDF
* ST Microelectronics STTS424, STTS424E02
Prefix: 'stts424'
Addresses scanned: I2C 0x18 - 0x1f
Datasheets:
http://www.st.com/stonline/products/literature/ds/13447/stts424.pdf
http://www.st.com/stonline/products/literature/ds/13448/stts424e02.pdf
* JEDEC JC 42.4 compliant temperature sensor chips
Prefix: 'jc42'
Addresses scanned: I2C 0x18 - 0x1f
Datasheet: -
Author:
Guenter Roeck <guenter.roeck@ericsson.com>
Description
-----------
This driver implements support for JEDEC JC 42.4 compliant temperature sensors.
The driver auto-detects the chips listed above, but can be manually instantiated
to support other JC 42.4 compliant chips.
Example: the following will load the driver for a generic JC 42.4 compliant
temperature sensor at address 0x18 on I2C bus #1:
# modprobe jc42
# echo jc42 0x18 > /sys/bus/i2c/devices/i2c-1/new_device
A JC 42.4 compliant chip supports a single temperature sensor. Minimum, maximum,
and critical temperature can be configured. There are alarms for high, low,
and critical thresholds.
There is also an hysteresis to control the thresholds for resetting alarms.
Per JC 42.4 specification, the hysteresis threshold can be configured to 0, 1.5,
3.0, and 6.0 degrees C. Configured hysteresis values will be rounded to those
limits. The chip supports only a single register to configure the hysteresis,
which applies to all limits. This register can be written by writing into
temp1_crit_hyst. Other hysteresis attributes are read-only.
Sysfs entries
-------------
temp1_input Temperature (RO)
temp1_min Minimum temperature (RW)
temp1_max Maximum temperature (RW)
temp1_crit Critical high temperature (RW)
temp1_crit_hyst Critical hysteresis temperature (RW)
temp1_max_hyst Maximum hysteresis temperature (RO)
temp1_min_alarm Temperature low alarm
temp1_max_alarm Temperature high alarm
temp1_crit_alarm Temperature critical alarm

24
Documentation/hwmon/ltc4245
View file

@ -72,9 +72,31 @@ in6_min_alarm 5v output undervoltage alarm
in7_min_alarm 3v output undervoltage alarm
in8_min_alarm Vee (-12v) output undervoltage alarm
in9_input GPIO voltage data
in9_input GPIO voltage data (see note 1)
in10_input GPIO voltage data (see note 1)
in11_input GPIO voltage data (see note 1)
power1_input 12v power usage (mW)
power2_input 5v power usage (mW)
power3_input 3v power usage (mW)
power4_input Vee (-12v) power usage (mW)
Note 1
------
If you have NOT configured the driver to sample all GPIO pins as analog
voltages, then the in10_input and in11_input sysfs attributes will not be
created. The driver will sample the GPIO pin that is currently connected to the
ADC as an analog voltage, and report the value in in9_input.
If you have configured the driver to sample all GPIO pins as analog voltages,
then they will be sampled in round-robin fashion. If userspace reads too
slowly, -EAGAIN will be returned when you read the sysfs attribute containing
the sensor reading.
The LTC4245 chip can be configured to sample all GPIO pins with two methods:
1) platform data -- see include/linux/i2c/ltc4245.h
2) OF device tree -- add the "ltc4245,use-extra-gpios" property to each chip
The default mode of operation is to sample a single GPIO pin.

27
Documentation/hwmon/pc87427
View file

@ -18,10 +18,11 @@ Description
The National Semiconductor Super I/O chip includes complete hardware
monitoring capabilities. It can monitor up to 18 voltages, 8 fans and
6 temperature sensors. Only the fans are supported at the moment.
6 temperature sensors. Only the fans and temperatures are supported at
the moment, voltages aren't.
This chip also has fan controlling features, which are not yet supported
by this driver either.
This chip also has fan controlling features (up to 4 PWM outputs),
which are partly supported by this driver.
The driver assumes that no more than one chip is present, which seems
reasonable.
@ -36,3 +37,23 @@ signal. Speeds down to 83 RPM can be measured.
An alarm is triggered if the rotation speed drops below a programmable
limit. Another alarm is triggered if the speed is too low to be measured
(including stalled or missing fan).
Fan Speed Control
-----------------
Fan speed can be controlled by PWM outputs. There are 4 possible modes:
always off, always on, manual and automatic. The latter isn't supported
by the driver: you can only return to that mode if it was the original
setting, and the configuration interface is missing.
Temperature Monitoring
----------------------
The PC87427 relies on external sensors (following the SensorPath
standard), so the resolution and range depend on the type of sensor
connected. The integer part can be 8-bit or 9-bit, and can be signed or
not. I couldn't find a way to figure out the external sensor data
temperature format, so user-space adjustment (typically by a factor 2)
may be required.

36
Documentation/hwmon/pkgtemp Normal file
View file

@ -0,0 +1,36 @@
Kernel driver pkgtemp
======================
Supported chips:
* Intel family
Prefix: 'pkgtemp'
CPUID:
Datasheet: Intel 64 and IA-32 Architectures Software Developer's Manual
Volume 3A: System Programming Guide
Author: Fenghua Yu
Description
-----------
This driver permits reading package level temperature sensor embedded inside
Intel CPU package. The sensors can be in core, uncore, memory controller, or
other components in a package. The feature is first implemented in Intel Sandy
Bridge platform.
Temperature is measured in degrees Celsius and measurement resolution is
1 degree C. Valid temperatures are from 0 to TjMax degrees C, because the actual
value of temperature register is in fact a delta from TjMax.
Temperature known as TjMax is the maximum junction temperature of package.
We get this from MSR_IA32_TEMPERATURE_TARGET. If the MSR is not accessible,
we define TjMax as 100 degrees Celsius. At this temperature, protection
mechanism will perform actions to forcibly cool down the package. Alarm
may be raised, if the temperature grows enough (more than TjMax) to trigger
the Out-Of-Spec bit. Following table summarizes the exported sysfs files:
temp1_input - Package temperature (in millidegrees Celsius).
temp1_max - All cooling devices should be turned on.
temp1_crit - Maximum junction temperature (in millidegrees Celsius).
temp1_crit_alarm - Set when Out-of-spec bit is set, never clears.
Correct CPU operation is no longer guaranteed.

157
Documentation/hwmon/smm665 Normal file
View file

@ -0,0 +1,157 @@
Kernel driver smm665
====================
Supported chips:
* Summit Microelectronics SMM465
Prefix: 'smm465'
Addresses scanned: -
Datasheet:
http://www.summitmicro.com/prod_select/summary/SMM465/SMM465DS.pdf
* Summit Microelectronics SMM665, SMM665B
Prefix: 'smm665'
Addresses scanned: -
Datasheet:
http://www.summitmicro.com/prod_select/summary/SMM665/SMM665B_2089_20.pdf
* Summit Microelectronics SMM665C
Prefix: 'smm665c'
Addresses scanned: -
Datasheet:
http://www.summitmicro.com/prod_select/summary/SMM665C/SMM665C_2125.pdf
* Summit Microelectronics SMM764
Prefix: 'smm764'
Addresses scanned: -
Datasheet:
http://www.summitmicro.com/prod_select/summary/SMM764/SMM764_2098.pdf
* Summit Microelectronics SMM766, SMM766B
Prefix: 'smm766'
Addresses scanned: -
Datasheets:
http://www.summitmicro.com/prod_select/summary/SMM766/SMM766_2086.pdf
http://www.summitmicro.com/prod_select/summary/SMM766B/SMM766B_2122.pdf
Author: Guenter Roeck <guenter.roeck@ericsson.com>
Module Parameters
-----------------
* vref: int
Default: 1250 (mV)
Reference voltage on VREF_ADC pin in mV. It should not be necessary to set
this parameter unless a non-default reference voltage is used.
Description
-----------
[From datasheet] The SMM665 is an Active DC Output power supply Controller
that monitors, margins and cascade sequences power. The part monitors six
power supply channels as well as VDD, 12V input, two general-purpose analog
inputs and an internal temperature sensor using a 10-bit ADC.
Each monitored channel has its own high and low limits, plus a critical
limit.
Support for SMM465, SMM764, and SMM766 has been implemented but is untested.
Usage Notes
-----------
This driver does not probe for devices, since there is no register which
can be safely used to identify the chip. You will have to instantiate
the devices explicitly. When instantiating the device, you have to specify
its configuration register address.
Example: the following will load the driver for an SMM665 at address 0x57
on I2C bus #1:
$ modprobe smm665
$ echo smm665 0x57 > /sys/bus/i2c/devices/i2c-1/new_device
Sysfs entries
-------------
This driver uses the values in the datasheet to convert ADC register values
into the values specified in the sysfs-interface document. All attributes are
read only.
Min, max, lcrit, and crit values are used by the chip to trigger external signals
and/or other activity. Triggered signals can include HEALTHY, RST, Power Off,
or Fault depending on the chip configuration. The driver reports values as lcrit
or crit if exceeding the limits triggers RST, Power Off, or Fault, and as min or
max otherwise. For details please see the SMM665 datasheet.
For SMM465 and SMM764, values for Channel E and F are reported but undefined.
in1_input 12V input voltage (mV)
in2_input 3.3V (VDD) input voltage (mV)
in3_input Channel A voltage (mV)
in4_input Channel B voltage (mV)
in5_input Channel C voltage (mV)
in6_input Channel D voltage (mV)
in7_input Channel E voltage (mV)
in8_input Channel F voltage (mV)
in9_input AIN1 voltage (mV)
in10_input AIN2 voltage (mV)
in1_min 12v input minimum voltage (mV)
in2_min 3.3V (VDD) input minimum voltage (mV)
in3_min Channel A minimum voltage (mV)
in4_min Channel B minimum voltage (mV)
in5_min Channel C minimum voltage (mV)
in6_min Channel D minimum voltage (mV)
in7_min Channel E minimum voltage (mV)
in8_min Channel F minimum voltage (mV)
in9_min AIN1 minimum voltage (mV)
in10_min AIN2 minimum voltage (mV)
in1_max 12v input maximum voltage (mV)
in2_max 3.3V (VDD) input maximum voltage (mV)
in3_max Channel A maximum voltage (mV)
in4_max Channel B maximum voltage (mV)
in5_max Channel C maximum voltage (mV)
in6_max Channel D maximum voltage (mV)
in7_max Channel E maximum voltage (mV)
in8_max Channel F maximum voltage (mV)
in9_max AIN1 maximum voltage (mV)
in10_max AIN2 maximum voltage (mV)
in1_lcrit 12v input critical minimum voltage (mV)
in2_lcrit 3.3V (VDD) input critical minimum voltage (mV)
in3_lcrit Channel A critical minimum voltage (mV)
in4_lcrit Channel B critical minimum voltage (mV)
in5_lcrit Channel C critical minimum voltage (mV)
in6_lcrit Channel D critical minimum voltage (mV)
in7_lcrit Channel E critical minimum voltage (mV)
in8_lcrit Channel F critical minimum voltage (mV)
in9_lcrit AIN1 critical minimum voltage (mV)
in10_lcrit AIN2 critical minimum voltage (mV)
in1_crit 12v input critical maximum voltage (mV)
in2_crit 3.3V (VDD) input critical maximum voltage (mV)
in3_crit Channel A critical maximum voltage (mV)
in4_crit Channel B critical maximum voltage (mV)
in5_crit Channel C critical maximum voltage (mV)
in6_crit Channel D critical maximum voltage (mV)
in7_crit Channel E critical maximum voltage (mV)
in8_crit Channel F critical maximum voltage (mV)
in9_crit AIN1 critical maximum voltage (mV)
in10_crit AIN2 critical maximum voltage (mV)
in1_crit_alarm 12v input critical alarm
in2_crit_alarm 3.3V (VDD) input critical alarm
in3_crit_alarm Channel A critical alarm
in4_crit_alarm Channel B critical alarm
in5_crit_alarm Channel C critical alarm
in6_crit_alarm Channel D critical alarm
in7_crit_alarm Channel E critical alarm
in8_crit_alarm Channel F critical alarm
in9_crit_alarm AIN1 critical alarm
in10_crit_alarm AIN2 critical alarm
temp1_input Chip tempererature
temp1_min Mimimum chip tempererature
temp1_max Maximum chip tempererature
temp1_crit Critical chip tempererature
temp1_crit_alarm Temperature critical alarm

29
Documentation/hwmon/sysfs-interface
View file

@ -107,10 +107,24 @@ in[0-*]_min Voltage min value.
Unit: millivolt
RW
in[0-*]_lcrit Voltage critical min value.
Unit: millivolt
RW
If voltage drops to or below this limit, the system may
take drastic action such as power down or reset. At the very
least, it should report a fault.
in[0-*]_max Voltage max value.
Unit: millivolt
RW
in[0-*]_crit Voltage critical max value.
Unit: millivolt
RW
If voltage reaches or exceeds this limit, the system may
take drastic action such as power down or reset. At the very
least, it should report a fault.
in[0-*]_input Voltage input value.
Unit: millivolt
RO
@ -284,7 +298,7 @@ temp[1-*]_input Temperature input value.
Unit: millidegree Celsius
RO
temp[1-*]_crit Temperature critical value, typically greater than
temp[1-*]_crit Temperature critical max value, typically greater than
corresponding temp_max values.
Unit: millidegree Celsius
RW
@ -296,6 +310,11 @@ temp[1-*]_crit_hyst
from the critical value.
RW
temp[1-*]_lcrit Temperature critical min value, typically lower than
corresponding temp_min values.
Unit: millidegree Celsius
RW
temp[1-*]_offset
Temperature offset which is added to the temperature reading
by the chip.
@ -344,9 +363,6 @@ Also see the Alarms section for status flags associated with temperatures.
* Currents *
************
Note that no known chip provides current measurements as of writing,
so this part is theoretical, so to say.
curr[1-*]_max Current max value
Unit: milliampere
RW
@ -471,6 +487,7 @@ limit-related alarms, not both. The driver should just reflect the hardware
implementation.
in[0-*]_alarm
curr[1-*]_alarm
fan[1-*]_alarm
temp[1-*]_alarm
Channel alarm
@ -482,6 +499,8 @@ OR
in[0-*]_min_alarm
in[0-*]_max_alarm
curr[1-*]_min_alarm
curr[1-*]_max_alarm
fan[1-*]_min_alarm
fan[1-*]_max_alarm
temp[1-*]_min_alarm
@ -497,7 +516,6 @@ to notify open diodes, unconnected fans etc. where the hardware
supports it. When this boolean has value 1, the measurement for that
channel should not be trusted.
in[0-*]_fault
fan[1-*]_fault
temp[1-*]_fault
Input fault condition
@ -513,6 +531,7 @@ beep_enable Master beep enable
RW
in[0-*]_beep
curr[1-*]_beep
fan[1-*]_beep
temp[1-*]_beep
Channel beep

15
Documentation/hwmon/w83627ehf
View file

@ -20,6 +20,10 @@ Supported chips:
Prefix: 'w83667hg'
Addresses scanned: ISA address retrieved from Super I/O registers
Datasheet: not available
* Winbond W83667HG-B
Prefix: 'w83667hg'
Addresses scanned: ISA address retrieved from Super I/O registers
Datasheet: Available from Nuvoton upon request
Authors:
Jean Delvare <khali@linux-fr.org>
@ -32,8 +36,8 @@ Description
-----------
This driver implements support for the Winbond W83627EHF, W83627EHG,
W83627DHG, W83627DHG-P and W83667HG super I/O chips. We will refer to them
collectively as Winbond chips.
W83627DHG, W83627DHG-P, W83667HG and W83667HG-B super I/O chips.
We will refer to them collectively as Winbond chips.
The chips implement three temperature sensors, five fan rotation
speed sensors, ten analog voltage sensors (only nine for the 627DHG), one
@ -68,14 +72,15 @@ follows:
temp1 -> pwm1
temp2 -> pwm2
temp3 -> pwm3
prog -> pwm4 (not on 667HG; the programmable setting is not supported by
the driver)
prog -> pwm4 (not on 667HG and 667HG-B; the programmable setting is not
supported by the driver)
/sys files
----------
name - this is a standard hwmon device entry. For the W83627EHF and W83627EHG,
it is set to "w83627ehf" and for the W83627DHG it is set to "w83627dhg"
it is set to "w83627ehf", for the W83627DHG it is set to "w83627dhg",
and for the W83667HG it is set to "w83667hg".
pwm[1-4] - this file stores PWM duty cycle or DC value (fan speed) in range:
0 (stop) to 255 (full)

2
Documentation/i2c/instantiating-devices
View file

@ -102,7 +102,7 @@ static int __devinit usb_hcd_pnx4008_probe(struct platform_device *pdev)
memset(&i2c_info, 0, sizeof(struct i2c_board_info));
strlcpy(i2c_info.name, "isp1301_pnx", I2C_NAME_SIZE);
isp1301_i2c_client = i2c_new_probed_device(i2c_adap, &i2c_info,
normal_i2c);
normal_i2c, NULL);
i2c_put_adapter(i2c_adap);
(...)
}

1
Documentation/ioctl/ioctl-number.txt
View file

@ -79,6 +79,7 @@ Code Seq#(hex) Include File Comments
0x22 all scsi/sg.h
'#' 00-3F IEEE 1394 Subsystem Block for the entire subsystem
'$' 00-0F linux/perf_counter.h, linux/perf_event.h
'&' 00-07 drivers/firewire/nosy-user.h
'1' 00-1F <linux/timepps.h> PPS kit from Ulrich Windl
<ftp://ftp.de.kernel.org/pub/linux/daemons/ntp/PPS/>
'2' 01-04 linux/i2o.h

34
Documentation/kbuild/kbuild.txt
View file

@ -22,11 +22,33 @@ building C files and assembler files.
KAFLAGS
--------------------------------------------------
Additional options to the assembler.
Additional options to the assembler (for built-in and modules).
AFLAGS_MODULE
--------------------------------------------------
Addtional module specific options to use for $(AS).
AFLAGS_KERNEL
--------------------------------------------------
Addtional options for $(AS) when used for assembler
code for code that is compiled as built-in.
KCFLAGS
--------------------------------------------------
Additional options to the C compiler.
Additional options to the C compiler (for built-in and modules).
CFLAGS_KERNEL
--------------------------------------------------
Addtional options for $(CC) when used to compile
code that is compiled as built-in.
CFLAGS_MODULE
--------------------------------------------------
Addtional module specific options to use for $(CC).
LDFLAGS_MODULE
--------------------------------------------------
Additional options used for $(LD) when linking modules.
KBUILD_VERBOSE
--------------------------------------------------
@ -40,15 +62,15 @@ Set the directory to look for the kernel source when building external
modules.
The directory can be specified in several ways:
1) Use "M=..." on the command line
2) Environmnet variable KBUILD_EXTMOD
3) Environmnet variable SUBDIRS
2) Environment variable KBUILD_EXTMOD
3) Environment variable SUBDIRS
The possibilities are listed in the order they take precedence.
Using "M=..." will always override the others.
KBUILD_OUTPUT
--------------------------------------------------
Specify the output directory when building the kernel.
The output directory can also be specificed using "O=...".
The output directory can also be specified using "O=...".
Setting "O=..." takes precedence over KBUILD_OUTPUT.
ARCH
@ -90,7 +112,7 @@ The script will be called with the following arguments:
$3 - kernel map file
$4 - default install path (use root directory if blank)
The implmentation of "make install" is architecture specific
The implementation of "make install" is architecture specific
and it may differ from the above.
INSTALLKERNEL is provided to enable the possibility to

2
Documentation/kbuild/kconfig.txt
View file

@ -65,7 +65,7 @@ also use the environment variable KCONFIG_ALLCONFIG as a flag or a
filename that contains config symbols that the user requires to be
set to a specific value. If KCONFIG_ALLCONFIG is used without a
filename, "make *config" checks for a file named
"all{yes/mod/no/random}.config" (corresponding to the *config command
"all{yes/mod/no/def/random}.config" (corresponding to the *config command
that was used) for symbol values that are to be forced. If this file
is not found, it checks for a file named "all.config" to contain forced
values.

133
Documentation/kbuild/makefiles.txt
View file

@ -45,7 +45,6 @@ This document describes the Linux kernel Makefiles.
--- 7.1 header-y
--- 7.2 objhdr-y
--- 7.3 destination-y
--- 7.4 unifdef-y (deprecated)
=== 8 Kbuild Variables
=== 9 Makefile language
@ -168,7 +167,7 @@ more details, with real examples.
#drivers/isdn/i4l/Makefile
# Makefile for the kernel ISDN subsystem and device drivers.
# Each configuration option enables a list of files.
obj-$(CONFIG_ISDN) += isdn.o
obj-$(CONFIG_ISDN_I4L) += isdn.o
obj-$(CONFIG_ISDN_PPP_BSDCOMP) += isdn_bsdcomp.o
--- 3.3 Loadable module goals - obj-m
@ -187,34 +186,35 @@ more details, with real examples.
Note: In this example $(CONFIG_ISDN_PPP_BSDCOMP) evaluates to 'm'
If a kernel module is built from several source files, you specify
that you want to build a module in the same way as above.
Kbuild needs to know which the parts that you want to build your
module from, so you have to tell it by setting an
$(<module_name>-objs) variable.
that you want to build a module in the same way as above; however,
kbuild needs to know which object files you want to build your
module from, so you have to tell it by setting a $(<module_name>-y)
variable.
Example:
#drivers/isdn/i4l/Makefile
obj-$(CONFIG_ISDN) += isdn.o
isdn-objs := isdn_net_lib.o isdn_v110.o isdn_common.o
obj-$(CONFIG_ISDN_I4L) += isdn.o
isdn-y := isdn_net_lib.o isdn_v110.o isdn_common.o
In this example, the module name will be isdn.o. Kbuild will
compile the objects listed in $(isdn-objs) and then run
compile the objects listed in $(isdn-y) and then run
"$(LD) -r" on the list of these files to generate isdn.o.
Kbuild recognises objects used for composite objects by the suffix
-objs, and the suffix -y. This allows the Makefiles to use
the value of a CONFIG_ symbol to determine if an object is part
of a composite object.
Due to kbuild recognizing $(<module_name>-y) for composite objects,
you can use the value of a CONFIG_ symbol to optionally include an
object file as part of a composite object.
Example:
#fs/ext2/Makefile
obj-$(CONFIG_EXT2_FS) += ext2.o
ext2-y := balloc.o bitmap.o
ext2-$(CONFIG_EXT2_FS_XATTR) += xattr.o
obj-$(CONFIG_EXT2_FS) += ext2.o
ext2-y := balloc.o dir.o file.o ialloc.o inode.o ioctl.o \
namei.o super.o symlink.o
ext2-$(CONFIG_EXT2_FS_XATTR) += xattr.o xattr_user.o \
xattr_trusted.o
In this example, xattr.o is only part of the composite object
ext2.o if $(CONFIG_EXT2_FS_XATTR) evaluates to 'y'.
In this example, xattr.o, xattr_user.o and xattr_trusted.o are only
part of the composite object ext2.o if $(CONFIG_EXT2_FS_XATTR)
evaluates to 'y'.
Note: Of course, when you are building objects into the kernel,
the syntax above will also work. So, if you have CONFIG_EXT2_FS=y,
@ -244,12 +244,12 @@ more details, with real examples.
may contain both a built-in.o and a lib.a file.
Example:
#arch/i386/lib/Makefile
lib-y := checksum.o delay.o
#arch/x86/lib/Makefile
lib-y := delay.o
This will create a library lib.a based on checksum.o and delay.o.
For kbuild to actually recognize that there is a lib.a being built,
the directory shall be listed in libs-y.
This will create a library lib.a based on delay.o. For kbuild to
actually recognize that there is a lib.a being built, the directory
shall be listed in libs-y.
See also "6.3 List directories to visit when descending".
Use of lib-y is normally restricted to lib/ and arch/*/lib.
@ -284,43 +284,40 @@ more details, with real examples.
--- 3.7 Compilation flags
ccflags-y, asflags-y and ldflags-y
The three flags listed above applies only to the kbuild makefile
where they are assigned. They are used for all the normal
cc, as and ld invocation happenign during a recursive build.
These three flags apply only to the kbuild makefile in which they
are assigned. They are used for all the normal cc, as and ld
invocations happening during a recursive build.
Note: Flags with the same behaviour were previously named:
EXTRA_CFLAGS, EXTRA_AFLAGS and EXTRA_LDFLAGS.
They are yet supported but their use are deprecated.
They are still supported but their usage is deprecated.
ccflags-y specifies options for compiling C files with $(CC).
ccflags-y specifies options for compiling with $(CC).
Example:
# drivers/sound/emu10k1/Makefile
ccflags-y += -I$(obj)
ccflags-$(DEBUG) += -DEMU10K1_DEBUG
# drivers/acpi/Makefile
ccflags-y := -Os
ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT
This variable is necessary because the top Makefile owns the
variable $(KBUILD_CFLAGS) and uses it for compilation flags for the
entire tree.
asflags-y is a similar string for per-directory options
when compiling assembly language source.
asflags-y specifies options for assembling with $(AS).
Example:
#arch/x86_64/kernel/Makefile
asflags-y := -traditional
#arch/sparc/kernel/Makefile
asflags-y := -ansi
ldflags-y is a string for per-directory options to $(LD).
ldflags-y specifies options for linking with $(LD).
Example:
#arch/m68k/fpsp040/Makefile
ldflags-y := -x
#arch/cris/boot/compressed/Makefile
ldflags-y += -T $(srctree)/$(src)/decompress_$(arch-y).lds
subdir-ccflags-y, subdir-asflags-y
The two flags listed above are similar to ccflags-y and as-falgs-y.
The difference is that the subdir- variants has effect for the kbuild
file where tey are present and all subdirectories.
The two flags listed above are similar to ccflags-y and asflags-y.
The difference is that the subdir- variants have effect for the kbuild
file where they are present and all subdirectories.
Options specified using subdir-* are added to the commandline before
the options specified using the non-subdir variants.
@ -340,18 +337,18 @@ more details, with real examples.
CFLAGS_aha152x.o = -DAHA152X_STAT -DAUTOCONF
CFLAGS_gdth.o = # -DDEBUG_GDTH=2 -D__SERIAL__ -D__COM2__ \
-DGDTH_STATISTICS
CFLAGS_seagate.o = -DARBITRATE -DPARITY -DSEAGATE_USE_ASM
These three lines specify compilation flags for aha152x.o,
gdth.o, and seagate.o
These two lines specify compilation flags for aha152x.o and gdth.o.
$(AFLAGS_$@) is a similar feature for source files in assembly
languages.
Example:
# arch/arm/kernel/Makefile
AFLAGS_head-armv.o := -DTEXTADDR=$(TEXTADDR) -traditional
AFLAGS_head-armo.o := -DTEXTADDR=$(TEXTADDR) -traditional
AFLAGS_head.o := -DTEXT_OFFSET=$(TEXT_OFFSET)
AFLAGS_crunch-bits.o := -Wa,-mcpu=ep9312
AFLAGS_iwmmxt.o := -Wa,-mcpu=iwmmxt
--- 3.9 Dependency tracking
@ -923,16 +920,33 @@ When kbuild executes, the following steps are followed (roughly):
The first example utilises the trick that a config option expands
to 'y' when selected.
CFLAGS_KERNEL $(CC) options specific for built-in
KBUILD_AFLAGS_KERNEL $(AS) options specific for built-in
$(CFLAGS_KERNEL) contains extra C compiler flags used to compile
$(KBUILD_AFLAGS_KERNEL) contains extra C compiler flags used to compile
resident kernel code.
CFLAGS_MODULE $(CC) options specific for modules
KBUILD_AFLAGS_MODULE Options for $(AS) when building modules
$(CFLAGS_MODULE) contains extra C compiler flags used to compile code
for loadable kernel modules.
$(KBUILD_AFLAGS_MODULE) is used to add arch specific options that
are used for $(AS).
From commandline AFLAGS_MODULE shall be used (see kbuild.txt).
KBUILD_CFLAGS_KERNEL $(CC) options specific for built-in
$(KBUILD_CFLAGS_KERNEL) contains extra C compiler flags used to compile
resident kernel code.
KBUILD_CFLAGS_MODULE Options for $(CC) when building modules
$(KBUILD_CFLAGS_MODULE) is used to add arch specific options that
are used for $(CC).
From commandline CFLAGS_MODULE shall be used (see kbuild.txt).
KBUILD_LDFLAGS_MODULE Options for $(LD) when linking modules
$(KBUILD_LDFLAGS_MODULE) is used to add arch specific options
used when linking modules. This is often a linker script.
From commandline LDFLAGS_MODULE shall be used (see kbuild.txt).
--- 6.2 Add prerequisites to archprepare:
@ -1176,14 +1190,14 @@ When kbuild executes, the following steps are followed (roughly):
=== 7 Kbuild syntax for exported headers
The kernel include a set of headers that is exported to userspace.
Many headers can be exported as-is but other headers requires a
Many headers can be exported as-is but other headers require a
minimal pre-processing before they are ready for user-space.
The pre-processing does:
- drop kernel specific annotations
- drop include of compiler.h
- drop all sections that is kernel internat (guarded by ifdef __KERNEL__)
- drop all sections that are kernel internal (guarded by ifdef __KERNEL__)
Each relevant directory contain a file name "Kbuild" which specify the
Each relevant directory contains a file name "Kbuild" which specifies the
headers to be exported.
See subsequent chapter for the syntax of the Kbuild file.
@ -1230,11 +1244,6 @@ See subsequent chapter for the syntax of the Kbuild file.
will be located in the directory "include/linux" when exported.
--- 7.4 unifdef-y (deprecated)
unifdef-y is deprecated. A direct replacement is header-y.
=== 8 Kbuild Variables
The top Makefile exports the following variables:

350
Documentation/kernel-parameters.txt
View file

@ -73,7 +73,6 @@ parameter is applicable:
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 is enabled.
@ -89,8 +88,8 @@ parameter is applicable:
RAM RAM disk support is enabled.
S390 S390 architecture is enabled.
SCSI Appropriate SCSI support is enabled.
A lot of drivers has their options described inside of
Documentation/scsi/.
A lot of drivers have their options described inside
the Documentation/scsi/ sub-directory.
SECURITY Different security models are enabled.
SELINUX SELinux support is enabled.
APPARMOR AppArmor support is enabled.
@ -116,6 +115,7 @@ parameter is applicable:
More X86-64 boot options can be found in
Documentation/x86/x86_64/boot-options.txt .
X86 Either 32bit or 64bit x86 (same as X86-32+X86-64)
XEN Xen support is enabled
In addition, the following text indicates that the option:
@ -281,36 +281,17 @@ and is between 256 and 4096 characters. It is defined in the file
no: ACPI OperationRegions are not marked as reserved,
no further checks are performed.
ad1848= [HW,OSS]
Format: <io>,<irq>,<dma>,<dma2>,<type>
add_efi_memmap [EFI; X86] Include EFI memory map in
kernel's map of available physical RAM.
advansys= [HW,SCSI]
See header of drivers/scsi/advansys.c.
aedsp16= [HW,OSS] Audio Excel DSP 16
Format: <io>,<irq>,<dma>,<mss_io>,<mpu_io>,<mpu_irq>
See also header of sound/oss/aedsp16.c.
agp= [AGP]
{ off | try_unsupported }
off: disable AGP support
try_unsupported: try to drive unsupported chipsets
(may crash computer or cause data corruption)
aha152x= [HW,SCSI]
See Documentation/scsi/aha152x.txt.
aha1542= [HW,SCSI]
Format: <portbase>[,<buson>,<busoff>[,<dmaspeed>]]
aic7xxx= [HW,SCSI]
See Documentation/scsi/aic7xxx.txt.
aic79xx= [HW,SCSI]
See Documentation/scsi/aic79xx.txt.
ALSA [HW,ALSA]
See Documentation/sound/alsa/alsa-parameters.txt
alignment= [KNL,ARM]
Allow the default userspace alignment fault handler
@ -372,8 +353,6 @@ and is between 256 and 4096 characters. It is defined in the file
atarimouse= [HW,MOUSE] Atari Mouse
atascsi= [HW,SCSI] Atari SCSI
atkbd.extra= [HW] Enable extra LEDs and keys on IBM RapidAccess,
EzKey and similar keyboards
@ -423,10 +402,6 @@ and is between 256 and 4096 characters. It is defined in the file
bttv.pll= See Documentation/video4linux/bttv/Insmod-options
bttv.tuner= and Documentation/video4linux/bttv/CARDLIST
BusLogic= [HW,SCSI]
See drivers/scsi/BusLogic.c, comment before function
BusLogic_ParseDriverOptions().
c101= [NET] Moxa C101 synchronous serial card
cachesize= [BUGS=X86-32] Override level 2 CPU cache size detection.
@ -469,7 +444,7 @@ and is between 256 and 4096 characters. It is defined in the file
clocksource is not available, it defaults to PIT.
Format: { pit | tsc | cyclone | pmtmr }
clocksource= [GENERIC_TIME] Override the default clocksource
clocksource= Override the default clocksource
Format: <string>
Override the default clocksource and use the clocksource
with the name specified.
@ -656,8 +631,6 @@ and is between 256 and 4096 characters. It is defined in the file
Disable PIN 1 of APIC timer
Can be useful to work around chipset bugs.
dmasound= [HW,OSS] Sound subsystem buffers
dma_debug=off If the kernel is compiled with DMA_API_DEBUG support,
this option disables the debugging code at boot.
@ -677,8 +650,6 @@ and is between 256 and 4096 characters. It is defined in the file
dscc4.setup= [NET]
dtc3181e= [HW,SCSI]
dynamic_printk Enables pr_debug()/dev_dbg() calls if
CONFIG_DYNAMIC_PRINTK_DEBUG has been enabled.
These can also be switched on/off via
@ -687,8 +658,11 @@ and is between 256 and 4096 characters. It is defined in the file
earlycon= [KNL] Output early console device and options.
uart[8250],io,<addr>[,options]
uart[8250],mmio,<addr>[,options]
uart[8250],mmio32,<addr>[,options]
Start an early, polled-mode console on the 8250/16550
UART at the specified I/O port or MMIO address.
MMIO inter-register address stride is either 8bit (mmio)
or 32bit (mmio32).
The options are the same as for ttyS, above.
earlyprintk= [X86,SH,BLACKFIN]
@ -716,8 +690,6 @@ and is between 256 and 4096 characters. It is defined in the file
This is desgined to be used in conjunction with
the boot argument: earlyprintk=vga
eata= [HW,SCSI]
edd= [EDD]
Format: {"off" | "on" | "skip[mbr]"}
@ -773,12 +745,6 @@ and is between 256 and 4096 characters. It is defined in the file
Format: <interval>,<probability>,<space>,<times>
See also /Documentation/fault-injection/.
fd_mcs= [HW,SCSI]
See header of drivers/scsi/fd_mcs.c.
fdomain= [HW,SCSI]
See header of drivers/scsi/fdomain.c.
floppy= [HW]
See Documentation/blockdev/floppy.txt.
@ -838,14 +804,9 @@ and is between 256 and 4096 characters. It is defined in the file
When zero, profiling data is discarded and associated
debugfs files are removed at module unload time.
gdth= [HW,SCSI]
See header of drivers/scsi/gdth.c.
gpt [EFI] Forces disk with valid GPT signature but
invalid Protective MBR to be treated as GPT.
gvp11= [HW,SCSI]
hashdist= [KNL,NUMA] Large hashes allocated during boot
are distributed across NUMA nodes. Defaults on
for 64bit NUMA, off otherwise.
@ -918,9 +879,6 @@ and is between 256 and 4096 characters. It is defined in the file
controller
i8042.nopnp [HW] Don't use ACPIPnP / PnPBIOS to discover KBD/AUX
controllers
i8042.panicblink=
[HW] Frequency with which keyboard LEDs should blink
when kernel panics (default is 0.5 sec)
i8042.reset [HW] Reset the controller during init and cleanup
i8042.unlock [HW] Unlock (ignore) the keylock
@ -937,9 +895,6 @@ and is between 256 and 4096 characters. It is defined in the file
i8k.restricted [HW] Allow controlling fans only if SYS_ADMIN
capability is set.
ibmmcascsi= [HW,MCA,SCSI] IBM MicroChannel SCSI adapter
See Documentation/mca.txt.
icn= [HW,ISDN]
Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]
@ -989,9 +944,6 @@ and is between 256 and 4096 characters. It is defined in the file
programs exec'd, files mmap'd for exec, and all files
opened for read by uid=0.
in2000= [HW,SCSI]
See header of drivers/scsi/in2000.c.
init= [KNL]
Format: <full_path>
Run specified binary instead of /sbin/init as init
@ -1029,6 +981,12 @@ and is between 256 and 4096 characters. It is defined in the file
result in a hardware IOTLB flush operation as opposed
to batching them for performance.
intremap= [X86-64, Intel-IOMMU]
Format: { on (default) | off | nosid }
on enable Interrupt Remapping (default)
off disable Interrupt Remapping
nosid disable Source ID checking
inttest= [IA64]
iomem= Disable strict checking of access to MMIO memory
@ -1069,9 +1027,6 @@ and is between 256 and 4096 characters. It is defined in the file
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.
irqfixup [HW]
When an interrupt is not handled search all handlers
for it. Intended to get systems with badly broken
@ -1144,9 +1099,12 @@ and is between 256 and 4096 characters. It is defined in the file
kgdboc= [KGDB,HW] kgdb over consoles.
Requires a tty driver that supports console polling,
or a supported polling keyboard driver (non-usb).
Serial only format: <serial_device>[,baud]
keyboard only format: kbd
keyboard and serial format: kbd,<serial_device>[,baud]
Serial only format: <serial_device>[,baud]
keyboard only format: kbd
keyboard and serial format: kbd,<serial_device>[,baud]
Optional Kernel mode setting:
kms, kbd format: kms,kbd
kms, kbd and serial format: kms,kbd,<ser_dev>[,baud]
kgdbwait [KGDB] Stop kernel execution and enter the
kernel debugger at the earliest opportunity.
@ -1344,9 +1302,6 @@ and is between 256 and 4096 characters. It is defined in the file
ltpc= [NET]
Format: <io>,<irq>,<dma>
mac5380= [HW,SCSI] Format:
<can_queue>,<cmd_per_lun>,<sg_tablesize>,<hostid>,<use_tags>
machvec= [IA64] Force the use of a particular machine-vector
(machvec) in a generic kernel.
Example: machvec=hpzx1_swiotlb
@ -1368,13 +1323,6 @@ and is between 256 and 4096 characters. It is defined in the file
be mounted
Format: <1-256>
max_luns= [SCSI] Maximum number of LUNs to probe.
Should be between 1 and 2^32-1.
max_report_luns=
[SCSI] Maximum number of LUNs received.
Should be between 1 and 16384.
mcatest= [IA-64]
mce [X86-32] Machine Check Exception
@ -1524,9 +1472,6 @@ and is between 256 and 4096 characters. It is defined in the file
that the amount of memory usable for all allocations
is not too small.
mpu401= [HW,OSS]
Format: <io>,<irq>
MTD_Partition= [MTD]
Format: <name>,<region-number>,<size>,<offset>
@ -1574,19 +1519,6 @@ and is between 256 and 4096 characters. It is defined in the file
n2= [NET] SDL Inc. RISCom/N2 synchronous serial card
NCR_D700= [HW,SCSI]
See header of drivers/scsi/NCR_D700.c.
ncr5380= [HW,SCSI]
ncr53c400= [HW,SCSI]
ncr53c400a= [HW,SCSI]
ncr53c406a= [HW,SCSI]
ncr53c8xx= [HW,SCSI]
netdev= [NET] Network devices parameters
Format: <irq>,<io>,<mem_start>,<mem_end>,<name>
Note that mem_start is often overloaded to mean
@ -1755,6 +1687,7 @@ and is between 256 and 4096 characters. It is defined in the file
nointremap [X86-64, Intel-IOMMU] Do not enable interrupt
remapping.
[Deprecated - use intremap=off]
nointroute [IA-64]
@ -1812,6 +1745,8 @@ and is between 256 and 4096 characters. It is defined in the file
nousb [USB] Disable the USB subsystem
nowatchdog [KNL] Disable the lockup detector.
nowb [ARM]
nox2apic [X86-64,APIC] Do not enable x2APIC mode.
@ -1849,9 +1784,6 @@ and is between 256 and 4096 characters. It is defined in the file
For example, to override I2C bus2:
omap_mux=i2c2_scl.i2c2_scl=0x100,i2c2_sda.i2c2_sda=0x100
opl3= [HW,OSS]
Format: <io>
oprofile.timer= [HW]
Use timer interrupt instead of performance counters
@ -1863,9 +1795,8 @@ and is between 256 and 4096 characters. It is defined in the file
perfmon on Intel CPUs instead of the
CPU specific event set.
osst= [HW,SCSI] SCSI Tape Driver
Format: <buffer_size>,<write_threshold>
See also Documentation/scsi/st.txt.
OSS [HW,OSS]
See Documentation/sound/oss/oss-parameters.txt
panic= [KNL] Kernel behaviour on panic
Format: <timeout>
@ -1899,12 +1830,6 @@ and is between 256 and 4096 characters. It is defined in the file
Currently this function knows 686a and 8231 chips.
Format: [spp|ps2|epp|ecp|ecpepp]
pas2= [HW,OSS] Format:
<io>,<irq>,<dma>,<dma16>,<sb_io>,<sb_irq>,<sb_dma>,<sb_dma16>
pas16= [HW,SCSI]
See header of drivers/scsi/pas16.c.
pause_on_oops=
Halt all CPUs after the first oops has been printed for
the specified number of seconds. This is to be used if
@ -1970,6 +1895,8 @@ and is between 256 and 4096 characters. It is defined in the file
norom [X86] Do not assign address space to
expansion ROMs that do not already have
BIOS assigned address ranges.
nobar [X86] Do not assign address space to the
BARs that weren't assigned by the BIOS.
irqmask=0xMMMM [X86] 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
@ -2047,15 +1974,18 @@ and is between 256 and 4096 characters. It is defined in the file
force Enable ASPM even on devices that claim not to support it.
WARNING: Forcing ASPM on may cause system lockups.
pcie_ports= [PCIE] PCIe ports handling:
auto Ask the BIOS whether or not to use native PCIe services
associated with PCIe ports (PME, hot-plug, AER). Use
them only if that is allowed by the BIOS.
native Use native PCIe services associated with PCIe ports
unconditionally.
compat Treat PCIe ports as PCI-to-PCI bridges, disable the PCIe
ports driver.
pcie_pme= [PCIE,PM] Native PCIe PME signaling options:
Format: {auto|force}[,nomsi]
auto Use native PCIe PME signaling if the BIOS allows the
kernel to control PCIe config registers of root ports.
force Use native PCIe PME signaling even if the BIOS refuses
to allow the kernel to control the relevant PCIe config
registers.
nomsi Do not use MSI for native PCIe PME signaling (this makes
all PCIe root ports use INTx for everything).
all PCIe root ports use INTx for all services).
pcmv= [HW,PCMCIA] BadgePAD 4
@ -2171,10 +2101,6 @@ and is between 256 and 4096 characters. It is defined in the file
[HW,MOUSE] Controls Logitech smartscroll autorepeat.
0 = disabled, 1 = enabled (default).
pss= [HW,OSS] Personal Sound System (ECHO ESC614)
Format:
<io>,<mss_io>,<mss_irq>,<mss_dma>,<mpu_io>,<mpu_irq>
pt. [PARIDE]
See Documentation/blockdev/paride.txt.
@ -2273,30 +2199,6 @@ and is between 256 and 4096 characters. It is defined in the file
sched_debug [KNL] Enables verbose scheduler debug messages.
scsi_debug_*= [SCSI]
See drivers/scsi/scsi_debug.c.
scsi_default_dev_flags=
[SCSI] SCSI default device flags
Format: <integer>
scsi_dev_flags= [SCSI] Black/white list entry for vendor and model
Format: <vendor>:<model>:<flags>
(flags are integer value)
scsi_logging_level= [SCSI] a bit mask of logging levels
See drivers/scsi/scsi_logging.h for bits. Also
settable via sysctl at dev.scsi.logging_level
(/proc/sys/dev/scsi/logging_level).
There is also a nice 'scsi_logging_level' script in the
S390-tools package, available for download at
http://www-128.ibm.com/developerworks/linux/linux390/s390-tools-1.5.4.html
scsi_mod.scan= [SCSI] sync (default) scans SCSI busses as they are
discovered. async scans them in kernel threads,
allowing boot to proceed. none ignores them, expecting
user space to do the scan.
security= [SECURITY] Choose a security module to enable at boot.
If this boot parameter is not specified, only the first
security module asking for security registration will be
@ -2330,9 +2232,6 @@ and is between 256 and 4096 characters. It is defined in the file
The parameter means the number of CPUs to show,
for example 1 means boot CPU only.
sim710= [SCSI,HW]
See header of drivers/scsi/sim710.c.
simeth= [IA-64]
simscsi=
@ -2390,128 +2289,6 @@ and is between 256 and 4096 characters. It is defined in the file
1: Fast pin select (default)
2: ATC IRMode
snd-ad1816a= [HW,ALSA]
snd-ad1848= [HW,ALSA]
snd-ali5451= [HW,ALSA]
snd-als100= [HW,ALSA]
snd-als4000= [HW,ALSA]
snd-azt2320= [HW,ALSA]
snd-cmi8330= [HW,ALSA]
snd-cmipci= [HW,ALSA]
snd-cs4231= [HW,ALSA]
snd-cs4232= [HW,ALSA]
snd-cs4236= [HW,ALSA]
snd-cs4281= [HW,ALSA]
snd-cs46xx= [HW,ALSA]
snd-dt019x= [HW,ALSA]
snd-dummy= [HW,ALSA]
snd-emu10k1= [HW,ALSA]
snd-ens1370= [HW,ALSA]
snd-ens1371= [HW,ALSA]
snd-es968= [HW,ALSA]
snd-es1688= [HW,ALSA]
snd-es18xx= [HW,ALSA]
snd-es1938= [HW,ALSA]
snd-es1968= [HW,ALSA]
snd-fm801= [HW,ALSA]
snd-gusclassic= [HW,ALSA]
snd-gusextreme= [HW,ALSA]
snd-gusmax= [HW,ALSA]
snd-hdsp= [HW,ALSA]
snd-ice1712= [HW,ALSA]
snd-intel8x0= [HW,ALSA]
snd-interwave= [HW,ALSA]
snd-interwave-stb=
[HW,ALSA]
snd-korg1212= [HW,ALSA]
snd-maestro3= [HW,ALSA]
snd-mpu401= [HW,ALSA]
snd-mtpav= [HW,ALSA]
snd-nm256= [HW,ALSA]
snd-opl3sa2= [HW,ALSA]
snd-opti92x-ad1848=
[HW,ALSA]
snd-opti92x-cs4231=
[HW,ALSA]
snd-opti93x= [HW,ALSA]
snd-pmac= [HW,ALSA]
snd-rme32= [HW,ALSA]
snd-rme96= [HW,ALSA]
snd-rme9652= [HW,ALSA]
snd-sb8= [HW,ALSA]
snd-sb16= [HW,ALSA]
snd-sbawe= [HW,ALSA]
snd-serial= [HW,ALSA]
snd-sgalaxy= [HW,ALSA]
snd-sonicvibes= [HW,ALSA]
snd-sun-amd7930=
[HW,ALSA]
snd-sun-cs4231= [HW,ALSA]
snd-trident= [HW,ALSA]
snd-usb-audio= [HW,ALSA,USB]
snd-via82xx= [HW,ALSA]
snd-virmidi= [HW,ALSA]
snd-wavefront= [HW,ALSA]
snd-ymfpci= [HW,ALSA]
softlockup_panic=
[KNL] Should the soft-lockup detector generate panics.
@ -2526,12 +2303,6 @@ and is between 256 and 4096 characters. It is defined in the file
spia_pedr=
spia_peddr=
sscape= [HW,OSS]
Format: <io>,<irq>,<dma>,<mpu_io>,<mpu_irq>
st= [HW,SCSI] SCSI tape parameters (buffers, etc.)
See Documentation/scsi/st.txt.
stacktrace [FTRACE]
Enabled the stack tracer on boot up.
@ -2589,18 +2360,12 @@ and is between 256 and 4096 characters. It is defined in the file
switches= [HW,M68k]
sym53c416= [HW,SCSI]
See header of drivers/scsi/sym53c416.c.
sysrq_always_enabled
[KNL]
Ignore sysrq setting - this boot parameter will
neutralize any effect of /proc/sys/kernel/sysrq.
Useful for debugging.
t128= [HW,SCSI]
See header of drivers/scsi/t128.c.
tdfx= [HW,DRM]
test_suspend= [SUSPEND]
@ -2637,10 +2402,6 @@ and is between 256 and 4096 characters. It is defined in the file
<deci-seconds>: poll all this frequency
0: no polling (default)
tmscsim= [HW,SCSI]
See comment before function dc390_setup() in
drivers/scsi/tmscsim.c.
topology= [S390]
Format: {off | on}
Specify if the kernel should make use of the cpu
@ -2668,10 +2429,6 @@ and is between 256 and 4096 characters. It is defined in the file
to facilitate early boot debugging.
See also Documentation/trace/events.txt
trix= [HW,OSS] MediaTrix AudioTrix Pro
Format:
<io>,<irq>,<dma>,<dma2>,<sb_io>,<sb_irq>,<sb_dma>,<mpu_io>,<mpu_irq>
tsc= Disable clocksource-must-verify flag for TSC.
Format: <string>
[x86] reliable: mark tsc clocksource as reliable, this
@ -2685,15 +2442,6 @@ and is between 256 and 4096 characters. It is defined in the file
<port#>,<js1>,<js2>,<js3>,<js4>,<js5>,<js6>,<js7>
See also Documentation/input/joystick-parport.txt
u14-34f= [HW,SCSI] UltraStor 14F/34F SCSI host adapter
See header of drivers/scsi/u14-34f.c.
uart401= [HW,OSS]
Format: <io>,<irq>
uart6850= [HW,OSS]
Format: <io>,<irq>
uhash_entries= [KNL,NET]
Set number of hash buckets for UDP/UDP-Lite connections
@ -2859,15 +2607,6 @@ and is between 256 and 4096 characters. It is defined in the file
overridden by individual drivers. 0 will hide
cursors, 1 will display them.
waveartist= [HW,OSS]
Format: <io>,<irq>,<dma>,<dma2>
wd33c93= [HW,SCSI]
See header of drivers/scsi/wd33c93.c.
wd7000= [HW,SCSI]
See header of drivers/scsi/wd7000.c.
watchdog timers [HW,WDT] For information on watchdog timers,
see Documentation/watchdog/watchdog-parameters.txt
or other driver-specific files in the
@ -2886,6 +2625,18 @@ and is between 256 and 4096 characters. It is defined in the file
xd= [HW,XT] Original XT pre-IDE (RLL encoded) disks.
xd_geo= See header of drivers/block/xd.c.
xen_emul_unplug= [HW,X86,XEN]
Unplug Xen emulated devices
Format: [unplug0,][unplug1]
ide-disks -- unplug primary master IDE devices
aux-ide-disks -- unplug non-primary-master IDE devices
nics -- unplug network devices
all -- unplug all emulated devices (NICs and IDE disks)
unnecessary -- unplugging emulated devices is
unnecessary even if the host did not respond to
the unplug protocol
never -- do not unplug even if version check succeeds
xirc2ps_cs= [NET,PCMCIA]
Format:
<irq>,<irq_mask>,<io>,<full_duplex>,<do_sound>,<lockup_hack>[,<irq2>[,<irq3>[,<irq4>]]]
@ -2894,5 +2645,4 @@ ______________________________________________________________________
TODO:
Add documentation for ALSA options.
Add more DRM drivers.

1
Documentation/kprobes.txt
View file

@ -285,6 +285,7 @@ architectures:
- sparc64 (Return probes not yet implemented.)
- arm
- ppc
- mips
3. Configuring Kprobes

4
Documentation/laptops/thinkpad-acpi.txt
View file

@ -1024,6 +1024,10 @@ ThinkPad-specific interface. The driver will disable its native
backlight brightness control interface if it detects that the standard
ACPI interface is available in the ThinkPad.
If you want to use the thinkpad-acpi backlight brightness control
instead of the generic ACPI video backlight brightness control for some
reason, you should use the acpi_backlight=vendor kernel parameter.
The brightness_enable module parameter can be used to control whether
the LCD brightness control feature will be enabled when available.
brightness_enable=0 forces it to be disabled. brightness_enable=1

3
Documentation/lguest/Makefile
View file

@ -1,5 +1,6 @@
# This creates the demonstration utility "lguest" which runs a Linux guest.
CFLAGS:=-m32 -Wall -Wmissing-declarations -Wmissing-prototypes -O3 -I../../include -I../../arch/x86/include -U_FORTIFY_SOURCE
# Missing headers? Add "-I../../include -I../../arch/x86/include"
CFLAGS:=-m32 -Wall -Wmissing-declarations -Wmissing-prototypes -O3 -U_FORTIFY_SOURCE
all: lguest

23
Documentation/lguest/lguest.c
View file

@ -39,14 +39,14 @@
#include <limits.h>
#include <stddef.h>
#include <signal.h>
#include "linux/lguest_launcher.h"
#include "linux/virtio_config.h"
#include "linux/virtio_net.h"
#include "linux/virtio_blk.h"
#include "linux/virtio_console.h"
#include "linux/virtio_rng.h"
#include "linux/virtio_ring.h"
#include "asm/bootparam.h"
#include <linux/virtio_config.h>
#include <linux/virtio_net.h>
#include <linux/virtio_blk.h>
#include <linux/virtio_console.h>
#include <linux/virtio_rng.h>
#include <linux/virtio_ring.h>
#include <asm/bootparam.h>
#include "../../include/linux/lguest_launcher.h"
/*L:110
* We can ignore the 42 include files we need for this program, but I do want
* to draw attention to the use of kernel-style types.
@ -1447,14 +1447,15 @@ static void add_to_bridge(int fd, const char *if_name, const char *br_name)
static void configure_device(int fd, const char *tapif, u32 ipaddr)
{
struct ifreq ifr;
struct sockaddr_in *sin = (struct sockaddr_in *)&ifr.ifr_addr;
struct sockaddr_in sin;
memset(&ifr, 0, sizeof(ifr));
strcpy(ifr.ifr_name, tapif);
/* Don't read these incantations. Just cut & paste them like I did! */
sin->sin_family = AF_INET;
sin->sin_addr.s_addr = htonl(ipaddr);
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl(ipaddr);
memcpy(&ifr.ifr_addr, &sin, sizeof(sin));
if (ioctl(fd, SIOCSIFADDR, &ifr) != 0)
err(1, "Setting %s interface address", tapif);
ifr.ifr_flags = IFF_UP;

4
Documentation/mmc/00-INDEX Normal file
View file

@ -0,0 +1,4 @@
00-INDEX
- this file
mmc-dev-attrs.txt
- info on SD and MMC device attributes

56
Documentation/mmc/mmc-dev-attrs.txt Normal file
View file

@ -0,0 +1,56 @@
SD and MMC Device Attributes
============================
All attributes are read-only.
cid Card Identifaction Register
csd Card Specific Data Register
scr SD Card Configuration Register (SD only)
date Manufacturing Date (from CID Register)
fwrev Firmware/Product Revision (from CID Register) (SD and MMCv1 only)
hwrev Hardware/Product Revision (from CID Register) (SD and MMCv1 only)
manfid Manufacturer ID (from CID Register)
name Product Name (from CID Register)
oemid OEM/Application ID (from CID Register)
serial Product Serial Number (from CID Register)
erase_size Erase group size
preferred_erase_size Preferred erase size
Note on Erase Size and Preferred Erase Size:
"erase_size" is the minimum size, in bytes, of an erase
operation. For MMC, "erase_size" is the erase group size
reported by the card. Note that "erase_size" does not apply
to trim or secure trim operations where the minimum size is
always one 512 byte sector. For SD, "erase_size" is 512
if the card is block-addressed, 0 otherwise.
SD/MMC cards can erase an arbitrarily large area up to and
including the whole card. When erasing a large area it may
be desirable to do it in smaller chunks for three reasons:
1. A single erase command will make all other I/O on
the card wait. This is not a problem if the whole card
is being erased, but erasing one partition will make
I/O for another partition on the same card wait for the
duration of the erase - which could be a several
minutes.
2. To be able to inform the user of erase progress.
3. The erase timeout becomes too large to be very
useful. Because the erase timeout contains a margin
which is multiplied by the size of the erase area,
the value can end up being several minutes for large
areas.
"erase_size" is not the most efficient unit to erase
(especially for SD where it is just one sector),
hence "preferred_erase_size" provides a good chunk
size for erasing large areas.
For MMC, "preferred_erase_size" is the high-capacity
erase size if a card specifies one, otherwise it is
based on the capacity of the card.
For SD, "preferred_erase_size" is the allocation unit
size specified by the card.
"preferred_erase_size" is in bytes.

146
Documentation/networking/dns_resolver.txt Normal file
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@ -0,0 +1,146 @@
===================
DNS Resolver Module
===================
Contents:
- Overview.
- Compilation.
- Setting up.
- Usage.
- Mechanism.
- Debugging.
========
OVERVIEW
========
The DNS resolver module provides a way for kernel services to make DNS queries
by way of requesting a key of key type dns_resolver. These queries are
upcalled to userspace through /sbin/request-key.
These routines must be supported by userspace tools dns.upcall, cifs.upcall and
request-key. It is under development and does not yet provide the full feature
set. The features it does support include:
(*) Implements the dns_resolver key_type to contact userspace.
It does not yet support the following AFS features:
(*) Dns query support for AFSDB resource record.
This code is extracted from the CIFS filesystem.
===========
COMPILATION
===========
The module should be enabled by turning on the kernel configuration options:
CONFIG_DNS_RESOLVER - tristate "DNS Resolver support"
==========
SETTING UP
==========
To set up this facility, the /etc/request-key.conf file must be altered so that
/sbin/request-key can appropriately direct the upcalls. For example, to handle
basic dname to IPv4/IPv6 address resolution, the following line should be
added:
#OP TYPE DESC CO-INFO PROGRAM ARG1 ARG2 ARG3 ...
#====== ============ ======= ======= ==========================
create dns_resolver * * /usr/sbin/cifs.upcall %k
To direct a query for query type 'foo', a line of the following should be added
before the more general line given above as the first match is the one taken.
create dns_resolver foo:* * /usr/sbin/dns.foo %k
=====
USAGE
=====
To make use of this facility, one of the following functions that are
implemented in the module can be called after doing:
#include <linux/dns_resolver.h>
(1) int dns_query(const char *type, const char *name, size_t namelen,
const char *options, char **_result, time_t *_expiry);
This is the basic access function. It looks for a cached DNS query and if
it doesn't find it, it upcalls to userspace to make a new DNS query, which
may then be cached. The key description is constructed as a string of the
form:
[<type>:]<name>
where <type> optionally specifies the particular upcall program to invoke,
and thus the type of query to do, and <name> specifies the string to be
looked up. The default query type is a straight hostname to IP address
set lookup.
The name parameter is not required to be a NUL-terminated string, and its
length should be given by the namelen argument.
The options parameter may be NULL or it may be a set of options
appropriate to the query type.
The return value is a string appropriate to the query type. For instance,
for the default query type it is just a list of comma-separated IPv4 and
IPv6 addresses. The caller must free the result.
The length of the result string is returned on success, and a negative
error code is returned otherwise. -EKEYREJECTED will be returned if the
DNS lookup failed.
If _expiry is non-NULL, the expiry time (TTL) of the result will be
returned also.
=========
MECHANISM
=========
The dnsresolver module registers a key type called "dns_resolver". Keys of
this type are used to transport and cache DNS lookup results from userspace.
When dns_query() is invoked, it calls request_key() to search the local
keyrings for a cached DNS result. If that fails to find one, it upcalls to
userspace to get a new result.
Upcalls to userspace are made through the request_key() upcall vector, and are
directed by means of configuration lines in /etc/request-key.conf that tell
/sbin/request-key what program to run to instantiate the key.
The upcall handler program is responsible for querying the DNS, processing the
result into a form suitable for passing to the keyctl_instantiate_key()
routine. This then passes the data to dns_resolver_instantiate() which strips
off and processes any options included in the data, and then attaches the
remainder of the string to the key as its payload.
The upcall handler program should set the expiry time on the key to that of the
lowest TTL of all the records it has extracted a result from. This means that
the key will be discarded and recreated when the data it holds has expired.
dns_query() returns a copy of the value attached to the key, or an error if
that is indicated instead.
See <file:Documentation/keys-request-key.txt> for further information about
request-key function.
=========
DEBUGGING
=========
Debugging messages can be turned on dynamically by writing a 1 into the
following file:
/sys/module/dnsresolver/parameters/debug

74
Documentation/networking/wavelan.txt
View file

@ -1,74 +0,0 @@
The Wavelan drivers saga
------------------------
By Jean Tourrilhes <jt@hpl.hp.com>
The Wavelan is a Radio network adapter designed by
Lucent. Under this generic name is hidden quite a variety of hardware,
and many Linux driver to support it.
The get the full story on Wireless LANs, please consult :
http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/
"wavelan" driver (old ISA Wavelan)
----------------
o Config : Network device -> Wireless LAN -> AT&T WaveLAN
o Location : .../drivers/net/wireless/wavelan*
o in-line doc : .../drivers/net/wireless/wavelan.p.h
o on-line doc :
http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Wavelan.html
This is the driver for the ISA version of the first generation
of the Wavelan, now discontinued. The device is 2 Mb/s, composed of a
Intel 82586 controller and a Lucent Modem, and is NOT 802.11 compliant.
The driver has been tested with the following hardware :
o Wavelan ISA 915 MHz (full length ISA card)
o Wavelan ISA 915 MHz 2.0 (half length ISA card)
o Wavelan ISA 2.4 GHz (full length ISA card, fixed frequency)
o Wavelan ISA 2.4 GHz 2.0 (half length ISA card, frequency selectable)
o Above cards with the optional DES encryption feature
"wavelan_cs" driver (old Pcmcia Wavelan)
-------------------
o Config : Network device -> PCMCIA network ->
Pcmcia Wireless LAN -> AT&T/Lucent WaveLAN
o Location : .../drivers/net/pcmcia/wavelan*
o in-line doc : .../drivers/net/pcmcia/wavelan_cs.h
o on-line doc :
http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Wavelan.html
This is the driver for the PCMCIA version of the first
generation of the Wavelan, now discontinued. The device is 2 Mb/s,
composed of a Intel 82593 controller (totally different from the 82586)
and a Lucent Modem, and NOT 802.11 compatible.
The driver has been tested with the following hardware :
o Wavelan Pcmcia 915 MHz 2.0 (Pcmcia card + separate
modem/antenna block)
o Wavelan Pcmcia 2.4 GHz 2.0 (Pcmcia card + separate
modem/antenna block)
"wvlan_cs" driver (Wavelan IEEE, GPL)
-----------------
o Config : Not yet in kernel
o Location : Pcmcia package 3.1.10+
o on-line doc :
http://web.archive.org/web/*/http://www.fasta.fh-dortmund.de/users/andy/wvlan/
This is the driver for the current generation of Wavelan IEEE,
which is 802.11 compatible. Depending on version, it is 2 Mb/s or 11
Mb/s, with or without encryption, all implemented in Lucent specific
DSP (the Hermes).
This is a GPL full source PCMCIA driver (ISA is just a Pcmcia
card with ISA-Pcmcia bridge).
"wavelan2_cs" driver (Wavelan IEEE, binary)
--------------------
o Config : Not yet in kernel
o Location : ftp://sourceforge.org/pcmcia/contrib/
This driver support exactly the same hardware as the previous
driver, the main difference is that it is based on a binary library
and supported by Lucent.
I hope it clears the confusion ;-)
Jean

24
Documentation/padata.txt
View file

@ -19,7 +19,7 @@ overall control of how tasks are to be run:
The pcpumask describes which processors will be used to execute work
submitted to this instance in parallel. The cbcpumask defines which
processors are allowed to use as the serialization callback processor.
processors are allowed to be used as the serialization callback processor.
The workqueue wq is where the work will actually be done; it should be
a multithreaded queue, naturally.
@ -30,10 +30,10 @@ cpumasks this helper function can be used:
Note: Padata maintains two kinds of cpumasks internally. The user supplied
cpumasks, submitted by padata_alloc/padata_alloc_possible and the 'usable'
cpumasks. The usable cpumasks are always the subset of active cpus in the
user supplied cpumasks, these are the cpumasks padata actually use. So
it is legal to supply a cpumask to padata that contains offline cpus.
Once a offline cpu in the user supplied cpumask comes online, padata
cpumasks. The usable cpumasks are always a subset of active CPUs in the
user supplied cpumasks; these are the cpumasks padata actually uses. So
it is legal to supply a cpumask to padata that contains offline CPUs.
Once an offline CPU in the user supplied cpumask comes online, padata
is going to use it.
There are functions for enabling and disabling the instance:
@ -44,7 +44,7 @@ There are functions for enabling and disabling the instance:
These functions are setting or clearing the "PADATA_INIT" flag;
if that flag is not set, other functions will refuse to work.
padata_start returns zero on success (flag set) or -EINVAL if the
padata cpumask contains no active cpu (flag not set).
padata cpumask contains no active CPU (flag not set).
padata_stop clears the flag and blocks until the padata instance
is unused.
@ -63,11 +63,11 @@ done with great frequency.
It's possible to change both cpumasks of a padata instance with
padata_set_cpumasks by specifying the cpumasks for parallel execution (pcpumask)
and for the serial callback function (cbcpumask). padata_set_cpumask is to
and for the serial callback function (cbcpumask). padata_set_cpumask is used to
change just one of the cpumasks. Here cpumask_type is one of PADATA_CPU_SERIAL,
PADATA_CPU_PARALLEL and cpumask specifies the new cpumask to use.
To simply add or remove one cpu from a certain cpumask the functions
padata_add_cpu/padata_remove_cpu are used. cpu specifies the cpu to add or
To simply add or remove one CPU from a certain cpumask the functions
padata_add_cpu/padata_remove_cpu are used. cpu specifies the CPU to add or
remove and mask is one of PADATA_CPU_SERIAL, PADATA_CPU_PARALLEL.
If a user is interested in padata cpumask changes, he can register to
@ -82,7 +82,7 @@ To unregister from that notifier:
struct notifier_block *nblock);
The padata cpumask change notifier notifies about changes of the usable
cpumasks, i.e. the subset of active cpus in the user supplied cpumask.
cpumasks, i.e. the subset of active CPUs in the user supplied cpumask.
Padata calls the notifier chain with:
@ -92,7 +92,7 @@ Padata calls the notifier chain with:
Here cpumask_change_notifier is registered notifier, notification_mask
is one of PADATA_CPU_SERIAL, PADATA_CPU_PARALLEL and cpumask is a pointer
to a struct padata_cpumask that contains the new cpumask informations.
to a struct padata_cpumask that contains the new cpumask information.
Actually submitting work to the padata instance requires the creation of a
padata_priv structure:
@ -104,7 +104,7 @@ padata_priv structure:
};
This structure will almost certainly be embedded within some larger
structure specific to the work to be done. Most its fields are private to
structure specific to the work to be done. Most of its fields are private to
padata, but the structure should be zeroed at initialisation time, and the
parallel() and serial() functions should be provided. Those functions will
be called in the process of getting the work done as we will see

12
Documentation/pcmcia/driver-changes.txt
View file

@ -1,4 +1,16 @@
This file details changes in 2.6 which affect PCMCIA card driver authors:
* pcmcia_request_io changes (as of 2.6.36)
Instead of io_req_t, drivers are now requested to fill out
struct pcmcia_device *p_dev->resource[0,1] for up to two ioport
ranges. After a call to pcmcia_request_io(), the ports found there
are reserved, after calling pcmcia_request_configuration(), they may
be used.
* No dev_info_t, no cs_types.h (as of 2.6.36)
dev_info_t and a few other typedefs are removed. No longer use them
in PCMCIA device drivers. Also, do not include pcmcia/cs_types.h, as
this file is gone.
* No dev_node_t (as of 2.6.35)
There is no more need to fill out a "dev_node_t" structure.

31
Documentation/powerpc/booting-without-of.txt
View file

@ -49,40 +49,13 @@ Table of Contents
f) MDIO on GPIOs
g) SPI busses
VII - Marvell Discovery mv64[345]6x System Controller chips
1) The /system-controller node
2) Child nodes of /system-controller
a) Marvell Discovery MDIO bus
b) Marvell Discovery ethernet controller
c) Marvell Discovery PHY nodes
d) Marvell Discovery SDMA nodes
e) Marvell Discovery BRG nodes
f) Marvell Discovery CUNIT nodes
g) Marvell Discovery MPSCROUTING nodes
h) Marvell Discovery MPSCINTR nodes
i) Marvell Discovery MPSC nodes
j) Marvell Discovery Watch Dog Timer nodes
k) Marvell Discovery I2C nodes
l) Marvell Discovery PIC (Programmable Interrupt Controller) nodes
m) Marvell Discovery MPP (Multipurpose Pins) multiplexing nodes
n) Marvell Discovery GPP (General Purpose Pins) nodes
o) Marvell Discovery PCI host bridge node
p) Marvell Discovery CPU Error nodes
q) Marvell Discovery SRAM Controller nodes
r) Marvell Discovery PCI Error Handler nodes
s) Marvell Discovery Memory Controller nodes
VIII - Specifying interrupt information for devices
VII - Specifying interrupt information for devices
1) interrupts property
2) interrupt-parent property
3) OpenPIC Interrupt Controllers
4) ISA Interrupt Controllers
IX - Specifying GPIO information for devices
1) gpios property
2) gpio-controller nodes
X - Specifying device power management information (sleep property)
VIII - Specifying device power management information (sleep property)
Appendix A - Sample SOC node for MPC8540

20
Documentation/powerpc/dts-bindings/fsl/diu.txt
View file

@ -4,10 +4,17 @@ The Freescale DIU is a LCD controller, with proper hardware, it can also
drive DVI monitors.
Required properties:
- compatible : should be "fsl-diu".
- compatible : should be "fsl,diu" or "fsl,mpc5121-diu".
- reg : should contain at least address and length of the DIU register
set.
- Interrupts : one DIU interrupt should be describe here.
- interrupts : one DIU interrupt should be described here.
- interrupt-parent : the phandle for the interrupt controller that
services interrupts for this device.
Optional properties:
- edid : verbatim EDID data block describing attached display.
Data from the detailed timing descriptor will be used to
program the display controller.
Example (MPC8610HPCD):
display@2c000 {
@ -16,3 +23,12 @@ Example (MPC8610HPCD):
interrupts = <72 2>;
interrupt-parent = <&mpic>;
};
Example for MPC5121:
display@2100 {
compatible = "fsl,mpc5121-diu";
reg = <0x2100 0x100>;
interrupts = <64 0x8>;
interrupt-parent = <&ipic>;
edid = [edid-data];
};

2
Documentation/powerpc/dts-bindings/fsl/esdhc.txt
View file

@ -14,6 +14,8 @@ Required properties:
reports inverted write-protect state;
- sdhci,1-bit-only : (optional) specifies that a controller can
only handle 1-bit data transfers.
- sdhci,auto-cmd12: (optional) specifies that a controller can
only handle auto CMD12.
Example:

2
Documentation/powerpc/dts-bindings/fsl/i2c.txt
View file

@ -20,6 +20,7 @@ Recommended properties :
- fsl,preserve-clocking : boolean; if defined, the clock settings
from the bootloader are preserved (not touched).
- clock-frequency : desired I2C bus clock frequency in Hz.
- fsl,timeout : I2C bus timeout in microseconds.
Examples :
@ -59,4 +60,5 @@ Examples :
interrupts = <43 2>;
interrupt-parent = <&mpic>;
clock-frequency = <400000>;
fsl,timeout = <10000>;
};

2
Documentation/powerpc/hvcs.txt
View file

@ -560,7 +560,7 @@ The proper channel for reporting bugs is either through the Linux OS
distribution company that provided your OS or by posting issues to the
PowerPC development mailing list at:
linuxppc-dev@ozlabs.org
linuxppc-dev@lists.ozlabs.org
This request is to provide a documented and searchable public exchange
of the problems and solutions surrounding this driver for the benefit of

139
Documentation/scsi/scsi-parameters.txt Normal file
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@ -0,0 +1,139 @@
SCSI Kernel Parameters
~~~~~~~~~~~~~~~~~~~~~~
See Documentation/kernel-parameters.txt for general information on
specifying module parameters.
This document may not be entirely up to date and comprehensive. The command
"modinfo -p ${modulename}" shows a current list of all parameters of a loadable
module. Loadable modules, after being loaded into the running kernel, also
reveal their parameters in /sys/module/${modulename}/parameters/. Some of these
parameters may be changed at runtime by the command
"echo -n ${value} > /sys/module/${modulename}/parameters/${parm}".
advansys= [HW,SCSI]
See header of drivers/scsi/advansys.c.
aha152x= [HW,SCSI]
See Documentation/scsi/aha152x.txt.
aha1542= [HW,SCSI]
Format: <portbase>[,<buson>,<busoff>[,<dmaspeed>]]
aic7xxx= [HW,SCSI]
See Documentation/scsi/aic7xxx.txt.
aic79xx= [HW,SCSI]
See Documentation/scsi/aic79xx.txt.
atascsi= [HW,SCSI] Atari SCSI
BusLogic= [HW,SCSI]
See drivers/scsi/BusLogic.c, comment before function
BusLogic_ParseDriverOptions().
dtc3181e= [HW,SCSI]
eata= [HW,SCSI]
fd_mcs= [HW,SCSI]
See header of drivers/scsi/fd_mcs.c.
fdomain= [HW,SCSI]
See header of drivers/scsi/fdomain.c.
gdth= [HW,SCSI]
See header of drivers/scsi/gdth.c.
gvp11= [HW,SCSI]
ibmmcascsi= [HW,MCA,SCSI] IBM MicroChannel SCSI adapter
See Documentation/mca.txt.
in2000= [HW,SCSI]
See header of drivers/scsi/in2000.c.
ips= [HW,SCSI] Adaptec / IBM ServeRAID controller
See header of drivers/scsi/ips.c.
mac5380= [HW,SCSI] Format:
<can_queue>,<cmd_per_lun>,<sg_tablesize>,<hostid>,<use_tags>
max_luns= [SCSI] Maximum number of LUNs to probe.
Should be between 1 and 2^32-1.
max_report_luns=
[SCSI] Maximum number of LUNs received.
Should be between 1 and 16384.
NCR_D700= [HW,SCSI]
See header of drivers/scsi/NCR_D700.c.
ncr5380= [HW,SCSI]
ncr53c400= [HW,SCSI]
ncr53c400a= [HW,SCSI]
ncr53c406a= [HW,SCSI]
ncr53c8xx= [HW,SCSI]
nodisconnect [HW,SCSI,M68K] Disables SCSI disconnects.
osst= [HW,SCSI] SCSI Tape Driver
Format: <buffer_size>,<write_threshold>
See also Documentation/scsi/st.txt.
pas16= [HW,SCSI]
See header of drivers/scsi/pas16.c.
scsi_debug_*= [SCSI]
See drivers/scsi/scsi_debug.c.
scsi_default_dev_flags=
[SCSI] SCSI default device flags
Format: <integer>
scsi_dev_flags= [SCSI] Black/white list entry for vendor and model
Format: <vendor>:<model>:<flags>
(flags are integer value)
scsi_logging_level= [SCSI] a bit mask of logging levels
See drivers/scsi/scsi_logging.h for bits. Also
settable via sysctl at dev.scsi.logging_level
(/proc/sys/dev/scsi/logging_level).
There is also a nice 'scsi_logging_level' script in the
S390-tools package, available for download at
http://www-128.ibm.com/developerworks/linux/linux390/s390-tools-1.5.4.html
scsi_mod.scan= [SCSI] sync (default) scans SCSI busses as they are
discovered. async scans them in kernel threads,
allowing boot to proceed. none ignores them, expecting
user space to do the scan.
sim710= [SCSI,HW]
See header of drivers/scsi/sim710.c.
st= [HW,SCSI] SCSI tape parameters (buffers, etc.)
See Documentation/scsi/st.txt.
sym53c416= [HW,SCSI]
See header of drivers/scsi/sym53c416.c.
t128= [HW,SCSI]
See header of drivers/scsi/t128.c.
tmscsim= [HW,SCSI]
See comment before function dc390_setup() in
drivers/scsi/tmscsim.c.
u14-34f= [HW,SCSI] UltraStor 14F/34F SCSI host adapter
See header of drivers/scsi/u14-34f.c.
wd33c93= [HW,SCSI]
See header of drivers/scsi/wd33c93.c.
wd7000= [HW,SCSI]
See header of drivers/scsi/wd7000.c.

322
Documentation/slow-work.txt
View file

@ -1,322 +0,0 @@
====================================
SLOW WORK ITEM EXECUTION THREAD POOL
====================================
By: David Howells <dhowells@redhat.com>
The slow work item execution thread pool is a pool of threads for performing
things that take a relatively long time, such as making mkdir calls.
Typically, when processing something, these items will spend a lot of time
blocking a thread on I/O, thus making that thread unavailable for doing other
work.
The standard workqueue model is unsuitable for this class of work item as that
limits the owner to a single thread or a single thread per CPU. For some
tasks, however, more threads - or fewer - are required.
There is just one pool per system. It contains no threads unless something
wants to use it - and that something must register its interest first. When
the pool is active, the number of threads it contains is dynamic, varying
between a maximum and minimum setting, depending on the load.
====================
CLASSES OF WORK ITEM
====================
This pool support two classes of work items:
(*) Slow work items.
(*) Very slow work items.
The former are expected to finish much quicker than the latter.
An operation of the very slow class may do a batch combination of several
lookups, mkdirs, and a create for instance.
An operation of the ordinarily slow class may, for example, write stuff or
expand files, provided the time taken to do so isn't too long.
Operations of both types may sleep during execution, thus tying up the thread
loaned to it.
A further class of work item is available, based on the slow work item class:
(*) Delayed slow work items.
These are slow work items that have a timer to defer queueing of the item for
a while.
THREAD-TO-CLASS ALLOCATION
--------------------------
Not all the threads in the pool are available to work on very slow work items.
The number will be between one and one fewer than the number of active threads.
This is configurable (see the "Pool Configuration" section).
All the threads are available to work on ordinarily slow work items, but a
percentage of the threads will prefer to work on very slow work items.
The configuration ensures that at least one thread will be available to work on
very slow work items, and at least one thread will be available that won't work
on very slow work items at all.
=====================
USING SLOW WORK ITEMS
=====================
Firstly, a module or subsystem wanting to make use of slow work items must
register its interest:
int ret = slow_work_register_user(struct module *module);
This will return 0 if successful, or a -ve error upon failure. The module
pointer should be the module interested in using this facility (almost
certainly THIS_MODULE).
Slow work items may then be set up by:
(1) Declaring a slow_work struct type variable:
#include <linux/slow-work.h>
struct slow_work myitem;
(2) Declaring the operations to be used for this item:
struct slow_work_ops myitem_ops = {
.get_ref = myitem_get_ref,
.put_ref = myitem_put_ref,
.execute = myitem_execute,
};
[*] For a description of the ops, see section "Item Operations".
(3) Initialising the item:
slow_work_init(&myitem, &myitem_ops);
or:
delayed_slow_work_init(&myitem, &myitem_ops);
or:
vslow_work_init(&myitem, &myitem_ops);
depending on its class.
A suitably set up work item can then be enqueued for processing:
int ret = slow_work_enqueue(&myitem);
This will return a -ve error if the thread pool is unable to gain a reference
on the item, 0 otherwise, or (for delayed work):
int ret = delayed_slow_work_enqueue(&myitem, my_jiffy_delay);
The items are reference counted, so there ought to be no need for a flush
operation. But as the reference counting is optional, means to cancel
existing work items are also included:
cancel_slow_work(&myitem);
cancel_delayed_slow_work(&myitem);
can be used to cancel pending work. The above cancel function waits for
existing work to have been executed (or prevent execution of them, depending
on timing).
When all a module's slow work items have been processed, and the
module has no further interest in the facility, it should unregister its
interest:
slow_work_unregister_user(struct module *module);
The module pointer is used to wait for all outstanding work items for that
module before completing the unregistration. This prevents the put_ref() code
from being taken away before it completes. module should almost certainly be
THIS_MODULE.
================
HELPER FUNCTIONS
================
The slow-work facility provides a function by which it can be determined
whether or not an item is queued for later execution:
bool queued = slow_work_is_queued(struct slow_work *work);
If it returns false, then the item is not on the queue (it may be executing
with a requeue pending). This can be used to work out whether an item on which
another depends is on the queue, thus allowing a dependent item to be queued
after it.
If the above shows an item on which another depends not to be queued, then the
owner of the dependent item might need to wait. However, to avoid locking up
the threads unnecessarily be sleeping in them, it can make sense under some
circumstances to return the work item to the queue, thus deferring it until
some other items have had a chance to make use of the yielded thread.
To yield a thread and defer an item, the work function should simply enqueue
the work item again and return. However, this doesn't work if there's nothing
actually on the queue, as the thread just vacated will jump straight back into
the item's work function, thus busy waiting on a CPU.
Instead, the item should use the thread to wait for the dependency to go away,
but rather than using schedule() or schedule_timeout() to sleep, it should use
the following function:
bool requeue = slow_work_sleep_till_thread_needed(
struct slow_work *work,
signed long *_timeout);
This will add a second wait and then sleep, such that it will be woken up if
either something appears on the queue that could usefully make use of the
thread - and behind which this item can be queued, or if the event the caller
set up to wait for happens. True will be returned if something else appeared
on the queue and this work function should perhaps return, of false if
something else woke it up. The timeout is as for schedule_timeout().
For example:
wq = bit_waitqueue(&my_flags, MY_BIT);
init_wait(&wait);
requeue = false;
do {
prepare_to_wait(wq, &wait, TASK_UNINTERRUPTIBLE);
if (!test_bit(MY_BIT, &my_flags))
break;
requeue = slow_work_sleep_till_thread_needed(&my_work,
&timeout);
} while (timeout > 0 && !requeue);
finish_wait(wq, &wait);
if (!test_bit(MY_BIT, &my_flags)
goto do_my_thing;
if (requeue)
return; // to slow_work
===============
ITEM OPERATIONS
===============
Each work item requires a table of operations of type struct slow_work_ops.
Only ->execute() is required; the getting and putting of a reference and the
describing of an item are all optional.
(*) Get a reference on an item:
int (*get_ref)(struct slow_work *work);
This allows the thread pool to attempt to pin an item by getting a
reference on it. This function should return 0 if the reference was
granted, or a -ve error otherwise. If an error is returned,
slow_work_enqueue() will fail.
The reference is held whilst the item is queued and whilst it is being
executed. The item may then be requeued with the same reference held, or
the reference will be released.
(*) Release a reference on an item:
void (*put_ref)(struct slow_work *work);
This allows the thread pool to unpin an item by releasing the reference on
it. The thread pool will not touch the item again once this has been
called.
(*) Execute an item:
void (*execute)(struct slow_work *work);
This should perform the work required of the item. It may sleep, it may
perform disk I/O and it may wait for locks.
(*) View an item through /proc:
void (*desc)(struct slow_work *work, struct seq_file *m);
If supplied, this should print to 'm' a small string describing the work
the item is to do. This should be no more than about 40 characters, and
shouldn't include a newline character.
See the 'Viewing executing and queued items' section below.
==================
POOL CONFIGURATION
==================
The slow-work thread pool has a number of configurables:
(*) /proc/sys/kernel/slow-work/min-threads
The minimum number of threads that should be in the pool whilst it is in
use. This may be anywhere between 2 and max-threads.
(*) /proc/sys/kernel/slow-work/max-threads
The maximum number of threads that should in the pool. This may be
anywhere between min-threads and 255 or NR_CPUS * 2, whichever is greater.
(*) /proc/sys/kernel/slow-work/vslow-percentage
The percentage of active threads in the pool that may be used to execute
very slow work items. This may be between 1 and 99. The resultant number
is bounded to between 1 and one fewer than the number of active threads.
This ensures there is always at least one thread that can process very
slow work items, and always at least one thread that won't.
==================================
VIEWING EXECUTING AND QUEUED ITEMS
==================================
If CONFIG_SLOW_WORK_DEBUG is enabled, a debugfs file is made available:
/sys/kernel/debug/slow_work/runqueue
through which the list of work items being executed and the queues of items to
be executed may be viewed. The owner of a work item is given the chance to
add some information of its own.
The contents look something like the following:
THR PID ITEM ADDR FL MARK DESC
=== ===== ================ == ===== ==========
0 3005 ffff880023f52348 a 952ms FSC: OBJ17d3: LOOK
1 3006 ffff880024e33668 2 160ms FSC: OBJ17e5 OP60d3b: Write1/Store fl=2
2 3165 ffff8800296dd180 a 424ms FSC: OBJ17e4: LOOK
3 4089 ffff8800262c8d78 a 212ms FSC: OBJ17ea: CRTN
4 4090 ffff88002792bed8 2 388ms FSC: OBJ17e8 OP60d36: Write1/Store fl=2
5 4092 ffff88002a0ef308 2 388ms FSC: OBJ17e7 OP60d2e: Write1/Store fl=2
6 4094 ffff88002abaf4b8 2 132ms FSC: OBJ17e2 OP60d4e: Write1/Store fl=2
7 4095 ffff88002bb188e0 a 388ms FSC: OBJ17e9: CRTN
vsq - ffff880023d99668 1 308ms FSC: OBJ17e0 OP60f91: Write1/EnQ fl=2
vsq - ffff8800295d1740 1 212ms FSC: OBJ16be OP4d4b6: Write1/EnQ fl=2
vsq - ffff880025ba3308 1 160ms FSC: OBJ179a OP58dec: Write1/EnQ fl=2
vsq - ffff880024ec83e0 1 160ms FSC: OBJ17ae OP599f2: Write1/EnQ fl=2
vsq - ffff880026618e00 1 160ms FSC: OBJ17e6 OP60d33: Write1/EnQ fl=2
vsq - ffff880025a2a4b8 1 132ms FSC: OBJ16a2 OP4d583: Write1/EnQ fl=2
vsq - ffff880023cbe6d8 9 212ms FSC: OBJ17eb: LOOK
vsq - ffff880024d37590 9 212ms FSC: OBJ17ec: LOOK
vsq - ffff880027746cb0 9 212ms FSC: OBJ17ed: LOOK
vsq - ffff880024d37ae8 9 212ms FSC: OBJ17ee: LOOK
vsq - ffff880024d37cb0 9 212ms FSC: OBJ17ef: LOOK
vsq - ffff880025036550 9 212ms FSC: OBJ17f0: LOOK
vsq - ffff8800250368e0 9 212ms FSC: OBJ17f1: LOOK
vsq - ffff880025036aa8 9 212ms FSC: OBJ17f2: LOOK
In the 'THR' column, executing items show the thread they're occupying and
queued threads indicate which queue they're on. 'PID' shows the process ID of
a slow-work thread that's executing something. 'FL' shows the work item flags.
'MARK' indicates how long since an item was queued or began executing. Lastly,
the 'DESC' column permits the owner of an item to give some information.

19
Documentation/sound/alsa/HD-Audio-Models.txt
View file

@ -83,8 +83,8 @@ ALC269
======
basic Basic preset
quanta Quanta FL1
eeepc-p703 ASUS Eeepc P703 P900A
eeepc-p901 ASUS Eeepc P901 S101
laptop-amic Laptops with analog-mic input
laptop-dmic Laptops with digital-mic input
fujitsu FSC Amilo
lifebook Fujitsu Lifebook S6420
auto auto-config reading BIOS (default)
@ -109,11 +109,18 @@ ALC662/663/272
asus-mode4 ASUS
asus-mode5 ASUS
asus-mode6 ASUS
asus-mode7 ASUS
asus-mode8 ASUS
dell Dell with ALC272
dell-zm1 Dell ZM1 with ALC272
samsung-nc10 Samsung NC10 mini notebook
auto auto-config reading BIOS (default)
ALC680
======
base Base model (ASUS NX90)
auto auto-config reading BIOS (default)
ALC882/883/885/888/889
======================
3stack-dig 3-jack with SPDIF I/O
@ -282,6 +289,7 @@ Conexant 5051
hp HP Spartan laptop
hp-dv6736 HP dv6736
hp-f700 HP Compaq Presario F700
ideapad Lenovo IdeaPad laptop
lenovo-x200 Lenovo X200 laptop
toshiba Toshiba Satellite M300
@ -289,8 +297,10 @@ Conexant 5066
=============
laptop Basic Laptop config (default)
dell-laptop Dell laptops
dell-vostro Dell Vostro
olpc-xo-1_5 OLPC XO 1.5
ideapad Lenovo IdeaPad U150
thinkpad Lenovo Thinkpad
STAC9200
========
@ -398,6 +408,7 @@ STAC92HD83*
mic-ref Reference board with power management for ports
dell-s14 Dell laptop
hp HP laptops with (inverted) mute-LED
hp-dv7-4000 HP dv-7 4000
auto BIOS setup (default)
STAC9872
@ -410,3 +421,7 @@ Cirrus Logic CS4206/4207
mbp55 MacBook Pro 5,5
imac27 IMac 27 Inch
auto BIOS setup (default)
VIA VT17xx/VT18xx/VT20xx
========================
auto BIOS setup (default)

8
Documentation/sound/alsa/Procfile.txt
View file

@ -103,6 +103,8 @@ card*/pcm*/xrun_debug
bit 2 = Enable additional jiffies check
bit 3 = Log hwptr update at each period interrupt
bit 4 = Log hwptr update at each snd_pcm_update_hw_ptr()
bit 5 = Show last 10 positions on error
bit 6 = Do above only once
When the bit 0 is set, the driver will show the messages to
kernel log when an xrun is detected. The debug message is
@ -122,6 +124,12 @@ card*/pcm*/xrun_debug
Bits 3 and 4 are for logging the hwptr records. Note that
these will give flood of kernel messages.
When bit 5 is set, the driver logs the last 10 xrun errors and
the proc file shows each jiffies, position, period_size,
buffer_size, old_hw_ptr, and hw_ptr_base values.
When bit 6 is set, the full xrun log is shown only once.
card*/pcm*/sub*/info
The general information of this PCM sub-stream.

135
Documentation/sound/alsa/alsa-parameters.txt Normal file
View file

@ -0,0 +1,135 @@
ALSA Kernel Parameters
~~~~~~~~~~~~~~~~~~~~~~
See Documentation/kernel-parameters.txt for general information on
specifying module parameters.
This document may not be entirely up to date and comprehensive. The command
"modinfo -p ${modulename}" shows a current list of all parameters of a loadable
module. Loadable modules, after being loaded into the running kernel, also
reveal their parameters in /sys/module/${modulename}/parameters/. Some of these
parameters may be changed at runtime by the command
"echo -n ${value} > /sys/module/${modulename}/parameters/${parm}".
snd-ad1816a= [HW,ALSA]
snd-ad1848= [HW,ALSA]
snd-ali5451= [HW,ALSA]
snd-als100= [HW,ALSA]
snd-als4000= [HW,ALSA]
snd-azt2320= [HW,ALSA]
snd-cmi8330= [HW,ALSA]
snd-cmipci= [HW,ALSA]
snd-cs4231= [HW,ALSA]
snd-cs4232= [HW,ALSA]
snd-cs4236= [HW,ALSA]
snd-cs4281= [HW,ALSA]
snd-cs46xx= [HW,ALSA]
snd-dt019x= [HW,ALSA]
snd-dummy= [HW,ALSA]
snd-emu10k1= [HW,ALSA]
snd-ens1370= [HW,ALSA]
snd-ens1371= [HW,ALSA]
snd-es968= [HW,ALSA]
snd-es1688= [HW,ALSA]
snd-es18xx= [HW,ALSA]
snd-es1938= [HW,ALSA]
snd-es1968= [HW,ALSA]
snd-fm801= [HW,ALSA]
snd-gusclassic= [HW,ALSA]
snd-gusextreme= [HW,ALSA]
snd-gusmax= [HW,ALSA]
snd-hdsp= [HW,ALSA]
snd-ice1712= [HW,ALSA]
snd-intel8x0= [HW,ALSA]
snd-interwave= [HW,ALSA]
snd-interwave-stb=
[HW,ALSA]
snd-korg1212= [HW,ALSA]
snd-maestro3= [HW,ALSA]
snd-mpu401= [HW,ALSA]
snd-mtpav= [HW,ALSA]
snd-nm256= [HW,ALSA]
snd-opl3sa2= [HW,ALSA]
snd-opti92x-ad1848=
[HW,ALSA]
snd-opti92x-cs4231=
[HW,ALSA]
snd-opti93x= [HW,ALSA]
snd-pmac= [HW,ALSA]
snd-rme32= [HW,ALSA]
snd-rme96= [HW,ALSA]
snd-rme9652= [HW,ALSA]
snd-sb8= [HW,ALSA]
snd-sb16= [HW,ALSA]
snd-sbawe= [HW,ALSA]
snd-serial= [HW,ALSA]
snd-sgalaxy= [HW,ALSA]
snd-sonicvibes= [HW,ALSA]
snd-sun-amd7930=
[HW,ALSA]
snd-sun-cs4231= [HW,ALSA]
snd-trident= [HW,ALSA]
snd-usb-audio= [HW,ALSA,USB]
snd-via82xx= [HW,ALSA]
snd-virmidi= [HW,ALSA]
snd-wavefront= [HW,ALSA]
snd-ymfpci= [HW,ALSA]

51
Documentation/sound/oss/oss-parameters.txt Normal file
View file

@ -0,0 +1,51 @@
OSS Kernel Parameters
~~~~~~~~~~~~~~~~~~~~~
See Documentation/kernel-parameters.txt for general information on
specifying module parameters.
This document may not be entirely up to date and comprehensive. The command
"modinfo -p ${modulename}" shows a current list of all parameters of a loadable
module. Loadable modules, after being loaded into the running kernel, also
reveal their parameters in /sys/module/${modulename}/parameters/. Some of these
parameters may be changed at runtime by the command
"echo -n ${value} > /sys/module/${modulename}/parameters/${parm}".
ad1848= [HW,OSS]
Format: <io>,<irq>,<dma>,<dma2>,<type>
aedsp16= [HW,OSS] Audio Excel DSP 16
Format: <io>,<irq>,<dma>,<mss_io>,<mpu_io>,<mpu_irq>
See also header of sound/oss/aedsp16.c.
dmasound= [HW,OSS] Sound subsystem buffers
mpu401= [HW,OSS]
Format: <io>,<irq>
opl3= [HW,OSS]
Format: <io>
pas2= [HW,OSS] Format:
<io>,<irq>,<dma>,<dma16>,<sb_io>,<sb_irq>,<sb_dma>,<sb_dma16>
pss= [HW,OSS] Personal Sound System (ECHO ESC614)
Format:
<io>,<mss_io>,<mss_irq>,<mss_dma>,<mpu_io>,<mpu_irq>
sscape= [HW,OSS]
Format: <io>,<irq>,<dma>,<mpu_io>,<mpu_irq>
trix= [HW,OSS] MediaTrix AudioTrix Pro
Format:
<io>,<irq>,<dma>,<dma2>,<sb_io>,<sb_irq>,<sb_dma>,<mpu_io>,<mpu_irq>
uart401= [HW,OSS]
Format: <io>,<irq>
uart6850= [HW,OSS]
Format: <io>,<irq>
waveartist= [HW,OSS]
Format: <io>,<irq>,<dma>,<dma2>

2
Documentation/sysctl/vm.txt
View file

@ -511,7 +511,7 @@ information may not be desired.
If this is set to non-zero, this information is shown whenever the
OOM killer actually kills a memory-hogging task.
The default value is 0.
The default value is 1 (enabled).
==============================================================

105
Documentation/timers/timers-howto.txt Normal file
View file

@ -0,0 +1,105 @@
delays - Information on the various kernel delay / sleep mechanisms
-------------------------------------------------------------------
This document seeks to answer the common question: "What is the
RightWay (TM) to insert a delay?"
This question is most often faced by driver writers who have to
deal with hardware delays and who may not be the most intimately
familiar with the inner workings of the Linux Kernel.
Inserting Delays
----------------
The first, and most important, question you need to ask is "Is my
code in an atomic context?" This should be followed closely by "Does
it really need to delay in atomic context?" If so...
ATOMIC CONTEXT:
You must use the *delay family of functions. These
functions use the jiffie estimation of clock speed
and will busy wait for enough loop cycles to achieve
the desired delay:
ndelay(unsigned long nsecs)
udelay(unsigned long usecs)
mdelay(unsgined long msecs)
udelay is the generally preferred API; ndelay-level
precision may not actually exist on many non-PC devices.
mdelay is macro wrapper around udelay, to account for
possible overflow when passing large arguments to udelay.
In general, use of mdelay is discouraged and code should
be refactored to allow for the use of msleep.
NON-ATOMIC CONTEXT:
You should use the *sleep[_range] family of functions.
There are a few more options here, while any of them may
work correctly, using the "right" sleep function will
help the scheduler, power management, and just make your
driver better :)
-- Backed by busy-wait loop:
udelay(unsigned long usecs)
-- Backed by hrtimers:
usleep_range(unsigned long min, unsigned long max)
-- Backed by jiffies / legacy_timers
msleep(unsigned long msecs)
msleep_interruptible(unsigned long msecs)
Unlike the *delay family, the underlying mechanism
driving each of these calls varies, thus there are
quirks you should be aware of.
SLEEPING FOR "A FEW" USECS ( < ~10us? ):
* Use udelay
- Why not usleep?
On slower systems, (embedded, OR perhaps a speed-
stepped PC!) the overhead of setting up the hrtimers
for usleep *may* not be worth it. Such an evaluation
will obviously depend on your specific situation, but
it is something to be aware of.
SLEEPING FOR ~USECS OR SMALL MSECS ( 10us - 20ms):
* Use usleep_range
- Why not msleep for (1ms - 20ms)?
Explained originally here:
http://lkml.org/lkml/2007/8/3/250
msleep(1~20) may not do what the caller intends, and
will often sleep longer (~20 ms actual sleep for any
value given in the 1~20ms range). In many cases this
is not the desired behavior.
- Why is there no "usleep" / What is a good range?
Since usleep_range is built on top of hrtimers, the
wakeup will be very precise (ish), thus a simple
usleep function would likely introduce a large number
of undesired interrupts.
With the introduction of a range, the scheduler is
free to coalesce your wakeup with any other wakeup
that may have happened for other reasons, or at the
worst case, fire an interrupt for your upper bound.
The larger a range you supply, the greater a chance
that you will not trigger an interrupt; this should
be balanced with what is an acceptable upper bound on
delay / performance for your specific code path. Exact
tolerances here are very situation specific, thus it
is left to the caller to determine a reasonable range.
SLEEPING FOR LARGER MSECS ( 10ms+ )
* Use msleep or possibly msleep_interruptible
- What's the difference?
msleep sets the current task to TASK_UNINTERRUPTIBLE
whereas msleep_interruptible sets the current task to
TASK_INTERRUPTIBLE before scheduling the sleep. In
short, the difference is whether the sleep can be ended
early by a signal. In general, just use msleep unless
you know you have a need for the interruptible variant.

155
Documentation/trace/ftrace-design.txt
View file

@ -13,6 +13,9 @@ Note that this focuses on architecture implementation details only. If you
want more explanation of a feature in terms of common code, review the common
ftrace.txt file.
Ideally, everyone who wishes to retain performance while supporting tracing in
their kernel should make it all the way to dynamic ftrace support.
Prerequisites
-------------
@ -215,7 +218,7 @@ An arch may pass in a unique value (frame pointer) to both the entering and
exiting of a function. On exit, the value is compared and if it does not
match, then it will panic the kernel. This is largely a sanity check for bad
code generation with gcc. If gcc for your port sanely updates the frame
pointer under different opitmization levels, then ignore this option.
pointer under different optimization levels, then ignore this option.
However, adding support for it isn't terribly difficult. In your assembly code
that calls prepare_ftrace_return(), pass the frame pointer as the 3rd argument.
@ -234,7 +237,7 @@ If you can't trace NMI functions, then skip this option.
HAVE_SYSCALL_TRACEPOINTS
---------------------
------------------------
You need very few things to get the syscalls tracing in an arch.
@ -250,12 +253,152 @@ You need very few things to get the syscalls tracing in an arch.
HAVE_FTRACE_MCOUNT_RECORD
-------------------------
See scripts/recordmcount.pl for more info.
<details to be filled>
See scripts/recordmcount.pl for more info. Just fill in the arch-specific
details for how to locate the addresses of mcount call sites via objdump.
This option doesn't make much sense without also implementing dynamic ftrace.
HAVE_DYNAMIC_FTRACE
---------------------
-------------------
You will first need HAVE_FTRACE_MCOUNT_RECORD and HAVE_FUNCTION_TRACER, so
scroll your reader back up if you got over eager.
Once those are out of the way, you will need to implement:
- asm/ftrace.h:
- MCOUNT_ADDR
- ftrace_call_adjust()
- struct dyn_arch_ftrace{}
- asm code:
- mcount() (new stub)
- ftrace_caller()
- ftrace_call()
- ftrace_stub()
- C code:
- ftrace_dyn_arch_init()
- ftrace_make_nop()
- ftrace_make_call()
- ftrace_update_ftrace_func()
First you will need to fill out some arch details in your asm/ftrace.h.
Define MCOUNT_ADDR as the address of your mcount symbol similar to:
#define MCOUNT_ADDR ((unsigned long)mcount)
Since no one else will have a decl for that function, you will need to:
extern void mcount(void);
You will also need the helper function ftrace_call_adjust(). Most people
will be able to stub it out like so:
static inline unsigned long ftrace_call_adjust(unsigned long addr)
{
return addr;
}
<details to be filled>
Lastly you will need the custom dyn_arch_ftrace structure. If you need
some extra state when runtime patching arbitrary call sites, this is the
place. For now though, create an empty struct:
struct dyn_arch_ftrace {
/* No extra data needed */
};
With the header out of the way, we can fill out the assembly code. While we
did already create a mcount() function earlier, dynamic ftrace only wants a
stub function. This is because the mcount() will only be used during boot
and then all references to it will be patched out never to return. Instead,
the guts of the old mcount() will be used to create a new ftrace_caller()
function. Because the two are hard to merge, it will most likely be a lot
easier to have two separate definitions split up by #ifdefs. Same goes for
the ftrace_stub() as that will now be inlined in ftrace_caller().
Before we get confused anymore, let's check out some pseudo code so you can
implement your own stuff in assembly:
void mcount(void)
{
return;
}
void ftrace_caller(void)
{
/* implement HAVE_FUNCTION_TRACE_MCOUNT_TEST if you desire */
/* save all state needed by the ABI (see paragraph above) */
unsigned long frompc = ...;
unsigned long selfpc = <return address> - MCOUNT_INSN_SIZE;
ftrace_call:
ftrace_stub(frompc, selfpc);
/* restore all state needed by the ABI */
ftrace_stub:
return;
}
This might look a little odd at first, but keep in mind that we will be runtime
patching multiple things. First, only functions that we actually want to trace
will be patched to call ftrace_caller(). Second, since we only have one tracer
active at a time, we will patch the ftrace_caller() function itself to call the
specific tracer in question. That is the point of the ftrace_call label.
With that in mind, let's move on to the C code that will actually be doing the
runtime patching. You'll need a little knowledge of your arch's opcodes in
order to make it through the next section.
Every arch has an init callback function. If you need to do something early on
to initialize some state, this is the time to do that. Otherwise, this simple
function below should be sufficient for most people:
int __init ftrace_dyn_arch_init(void *data)
{
/* return value is done indirectly via data */
*(unsigned long *)data = 0;
return 0;
}
There are two functions that are used to do runtime patching of arbitrary
functions. The first is used to turn the mcount call site into a nop (which
is what helps us retain runtime performance when not tracing). The second is
used to turn the mcount call site into a call to an arbitrary location (but
typically that is ftracer_caller()). See the general function definition in
linux/ftrace.h for the functions:
ftrace_make_nop()
ftrace_make_call()
The rec->ip value is the address of the mcount call site that was collected
by the scripts/recordmcount.pl during build time.
The last function is used to do runtime patching of the active tracer. This
will be modifying the assembly code at the location of the ftrace_call symbol
inside of the ftrace_caller() function. So you should have sufficient padding
at that location to support the new function calls you'll be inserting. Some
people will be using a "call" type instruction while others will be using a
"branch" type instruction. Specifically, the function is:
ftrace_update_ftrace_func()
HAVE_DYNAMIC_FTRACE + HAVE_FUNCTION_GRAPH_TRACER
------------------------------------------------
The function grapher needs a few tweaks in order to work with dynamic ftrace.
Basically, you will need to:
- update:
- ftrace_caller()
- ftrace_graph_call()
- ftrace_graph_caller()
- implement:
- ftrace_enable_ftrace_graph_caller()
- ftrace_disable_ftrace_graph_caller()
<details to be filled>
Quick notes:
- add a nop stub after the ftrace_call location named ftrace_graph_call;
stub needs to be large enough to support a call to ftrace_graph_caller()
- update ftrace_graph_caller() to work with being called by the new
ftrace_caller() since some semantics may have changed
- ftrace_enable_ftrace_graph_caller() will runtime patch the
ftrace_graph_call location with a call to ftrace_graph_caller()
- ftrace_disable_ftrace_graph_caller() will runtime patch the
ftrace_graph_call location with nops

126
Documentation/trace/kmemtrace.txt
View file

@ -1,126 +0,0 @@
kmemtrace - Kernel Memory Tracer
by Eduard - Gabriel Munteanu
<eduard.munteanu@linux360.ro>
I. Introduction
===============
kmemtrace helps kernel developers figure out two things:
1) how different allocators (SLAB, SLUB etc.) perform
2) how kernel code allocates memory and how much
To do this, we trace every allocation and export information to the userspace
through the relay interface. We export things such as the number of requested
bytes, the number of bytes actually allocated (i.e. including internal
fragmentation), whether this is a slab allocation or a plain kmalloc() and so
on.
The actual analysis is performed by a userspace tool (see section III for
details on where to get it from). It logs the data exported by the kernel,
processes it and (as of writing this) can provide the following information:
- the total amount of memory allocated and fragmentation per call-site
- the amount of memory allocated and fragmentation per allocation
- total memory allocated and fragmentation in the collected dataset
- number of cross-CPU allocation and frees (makes sense in NUMA environments)
Moreover, it can potentially find inconsistent and erroneous behavior in
kernel code, such as using slab free functions on kmalloc'ed memory or
allocating less memory than requested (but not truly failed allocations).
kmemtrace also makes provisions for tracing on some arch and analysing the
data on another.
II. Design and goals
====================
kmemtrace was designed to handle rather large amounts of data. Thus, it uses
the relay interface to export whatever is logged to userspace, which then
stores it. Analysis and reporting is done asynchronously, that is, after the
data is collected and stored. By design, it allows one to log and analyse
on different machines and different arches.
As of writing this, the ABI is not considered stable, though it might not
change much. However, no guarantees are made about compatibility yet. When
deemed stable, the ABI should still allow easy extension while maintaining
backward compatibility. This is described further in Documentation/ABI.
Summary of design goals:
- allow logging and analysis to be done across different machines
- be fast and anticipate usage in high-load environments (*)
- be reasonably extensible
- make it possible for GNU/Linux distributions to have kmemtrace
included in their repositories
(*) - one of the reasons Pekka Enberg's original userspace data analysis
tool's code was rewritten from Perl to C (although this is more than a
simple conversion)
III. Quick usage guide
======================
1) Get a kernel that supports kmemtrace and build it accordingly (i.e. enable
CONFIG_KMEMTRACE).
2) Get the userspace tool and build it:
$ git clone git://repo.or.cz/kmemtrace-user.git # current repository
$ cd kmemtrace-user/
$ ./autogen.sh
$ ./configure
$ make
3) Boot the kmemtrace-enabled kernel if you haven't, preferably in the
'single' runlevel (so that relay buffers don't fill up easily), and run
kmemtrace:
# '$' does not mean user, but root here.
$ mount -t debugfs none /sys/kernel/debug
$ mount -t proc none /proc
$ cd path/to/kmemtrace-user/
$ ./kmemtraced
Wait a bit, then stop it with CTRL+C.
$ cat /sys/kernel/debug/kmemtrace/total_overruns # Check if we didn't
# overrun, should
# be zero.
$ (Optionally) [Run kmemtrace_check separately on each cpu[0-9]*.out file to
check its correctness]
$ ./kmemtrace-report
Now you should have a nice and short summary of how the allocator performs.
IV. FAQ and known issues
========================
Q: 'cat /sys/kernel/debug/kmemtrace/total_overruns' is non-zero, how do I fix
this? Should I worry?
A: If it's non-zero, this affects kmemtrace's accuracy, depending on how
large the number is. You can fix it by supplying a higher
'kmemtrace.subbufs=N' kernel parameter.
---
Q: kmemtrace_check reports errors, how do I fix this? Should I worry?
A: This is a bug and should be reported. It can occur for a variety of
reasons:
- possible bugs in relay code
- possible misuse of relay by kmemtrace
- timestamps being collected unorderly
Or you may fix it yourself and send us a patch.
---
Q: kmemtrace_report shows many errors, how do I fix this? Should I worry?
A: This is a known issue and I'm working on it. These might be true errors
in kernel code, which may have inconsistent behavior (e.g. allocating memory
with kmem_cache_alloc() and freeing it with kfree()). Pekka Enberg pointed
out this behavior may work with SLAB, but may fail with other allocators.
It may also be due to lack of tracing in some unusual allocator functions.
We don't want bug reports regarding this issue yet.
---
V. See also
===========
Documentation/kernel-parameters.txt
Documentation/ABI/testing/debugfs-kmemtrace

2
Documentation/trace/kprobetrace.txt
View file

@ -42,7 +42,7 @@ Synopsis of kprobe_events
+|-offs(FETCHARG) : Fetch memory at FETCHARG +|- offs address.(**)
NAME=FETCHARG : Set NAME as the argument name of FETCHARG.
FETCHARG:TYPE : Set TYPE as the type of FETCHARG. Currently, basic types
(u8/u16/u32/u64/s8/s16/s32/s64) are supported.
(u8/u16/u32/u64/s8/s16/s32/s64) and string are supported.
(*) only for return probe.
(**) this is useful for fetching a field of data structures.

686
Documentation/trace/postprocess/trace-vmscan-postprocess.pl Normal file
View file

@ -0,0 +1,686 @@
#!/usr/bin/perl
# This is a POC for reading the text representation of trace output related to
# page reclaim. It makes an attempt to extract some high-level information on
# what is going on. The accuracy of the parser may vary
#
# Example usage: trace-vmscan-postprocess.pl < /sys/kernel/debug/tracing/trace_pipe
# other options
# --read-procstat If the trace lacks process info, get it from /proc
# --ignore-pid Aggregate processes of the same name together
#
# Copyright (c) IBM Corporation 2009
# Author: Mel Gorman <mel@csn.ul.ie>
use strict;
use Getopt::Long;
# Tracepoint events
use constant MM_VMSCAN_DIRECT_RECLAIM_BEGIN => 1;
use constant MM_VMSCAN_DIRECT_RECLAIM_END => 2;
use constant MM_VMSCAN_KSWAPD_WAKE => 3;
use constant MM_VMSCAN_KSWAPD_SLEEP => 4;
use constant MM_VMSCAN_LRU_SHRINK_ACTIVE => 5;
use constant MM_VMSCAN_LRU_SHRINK_INACTIVE => 6;
use constant MM_VMSCAN_LRU_ISOLATE => 7;
use constant MM_VMSCAN_WRITEPAGE_FILE_SYNC => 8;
use constant MM_VMSCAN_WRITEPAGE_ANON_SYNC => 9;
use constant MM_VMSCAN_WRITEPAGE_FILE_ASYNC => 10;
use constant MM_VMSCAN_WRITEPAGE_ANON_ASYNC => 11;
use constant MM_VMSCAN_WRITEPAGE_ASYNC => 12;
use constant EVENT_UNKNOWN => 13;
# Per-order events
use constant MM_VMSCAN_DIRECT_RECLAIM_BEGIN_PERORDER => 11;
use constant MM_VMSCAN_WAKEUP_KSWAPD_PERORDER => 12;
use constant MM_VMSCAN_KSWAPD_WAKE_PERORDER => 13;
use constant HIGH_KSWAPD_REWAKEUP_PERORDER => 14;
# Constants used to track state
use constant STATE_DIRECT_BEGIN => 15;
use constant STATE_DIRECT_ORDER => 16;
use constant STATE_KSWAPD_BEGIN => 17;
use constant STATE_KSWAPD_ORDER => 18;
# High-level events extrapolated from tracepoints
use constant HIGH_DIRECT_RECLAIM_LATENCY => 19;
use constant HIGH_KSWAPD_LATENCY => 20;
use constant HIGH_KSWAPD_REWAKEUP => 21;
use constant HIGH_NR_SCANNED => 22;
use constant HIGH_NR_TAKEN => 23;
use constant HIGH_NR_RECLAIM => 24;
use constant HIGH_NR_CONTIG_DIRTY => 25;
my %perprocesspid;
my %perprocess;
my %last_procmap;
my $opt_ignorepid;
my $opt_read_procstat;
my $total_wakeup_kswapd;
my ($total_direct_reclaim, $total_direct_nr_scanned);
my ($total_direct_latency, $total_kswapd_latency);
my ($total_direct_writepage_file_sync, $total_direct_writepage_file_async);
my ($total_direct_writepage_anon_sync, $total_direct_writepage_anon_async);
my ($total_kswapd_nr_scanned, $total_kswapd_wake);
my ($total_kswapd_writepage_file_sync, $total_kswapd_writepage_file_async);
my ($total_kswapd_writepage_anon_sync, $total_kswapd_writepage_anon_async);
# Catch sigint and exit on request
my $sigint_report = 0;
my $sigint_exit = 0;
my $sigint_pending = 0;
my $sigint_received = 0;
sub sigint_handler {
my $current_time = time;
if ($current_time - 2 > $sigint_received) {
print "SIGINT received, report pending. Hit ctrl-c again to exit\n";
$sigint_report = 1;
} else {
if (!$sigint_exit) {
print "Second SIGINT received quickly, exiting\n";
}
$sigint_exit++;
}
if ($sigint_exit > 3) {
print "Many SIGINTs received, exiting now without report\n";
exit;
}
$sigint_received = $current_time;
$sigint_pending = 1;
}
$SIG{INT} = "sigint_handler";
# Parse command line options
GetOptions(
'ignore-pid' => \$opt_ignorepid,
'read-procstat' => \$opt_read_procstat,
);
# Defaults for dynamically discovered regex's
my $regex_direct_begin_default = 'order=([0-9]*) may_writepage=([0-9]*) gfp_flags=([A-Z_|]*)';
my $regex_direct_end_default = 'nr_reclaimed=([0-9]*)';
my $regex_kswapd_wake_default = 'nid=([0-9]*) order=([0-9]*)';
my $regex_kswapd_sleep_default = 'nid=([0-9]*)';
my $regex_wakeup_kswapd_default = 'nid=([0-9]*) zid=([0-9]*) order=([0-9]*)';
my $regex_lru_isolate_default = 'isolate_mode=([0-9]*) order=([0-9]*) nr_requested=([0-9]*) nr_scanned=([0-9]*) nr_taken=([0-9]*) contig_taken=([0-9]*) contig_dirty=([0-9]*) contig_failed=([0-9]*)';
my $regex_lru_shrink_inactive_default = 'lru=([A-Z_]*) nr_scanned=([0-9]*) nr_reclaimed=([0-9]*) priority=([0-9]*)';
my $regex_lru_shrink_active_default = 'lru=([A-Z_]*) nr_scanned=([0-9]*) nr_rotated=([0-9]*) priority=([0-9]*)';
my $regex_writepage_default = 'page=([0-9a-f]*) pfn=([0-9]*) flags=([A-Z_|]*)';
# Dyanically discovered regex
my $regex_direct_begin;
my $regex_direct_end;
my $regex_kswapd_wake;
my $regex_kswapd_sleep;
my $regex_wakeup_kswapd;
my $regex_lru_isolate;
my $regex_lru_shrink_inactive;
my $regex_lru_shrink_active;
my $regex_writepage;
# Static regex used. Specified like this for readability and for use with /o
# (process_pid) (cpus ) ( time ) (tpoint ) (details)
my $regex_traceevent = '\s*([a-zA-Z0-9-]*)\s*(\[[0-9]*\])\s*([0-9.]*):\s*([a-zA-Z_]*):\s*(.*)';
my $regex_statname = '[-0-9]*\s\((.*)\).*';
my $regex_statppid = '[-0-9]*\s\(.*\)\s[A-Za-z]\s([0-9]*).*';
sub generate_traceevent_regex {
my $event = shift;
my $default = shift;
my $regex;
# Read the event format or use the default
if (!open (FORMAT, "/sys/kernel/debug/tracing/events/$event/format")) {
print("WARNING: Event $event format string not found\n");
return $default;
} else {
my $line;
while (!eof(FORMAT)) {
$line = <FORMAT>;
$line =~ s/, REC->.*//;
if ($line =~ /^print fmt:\s"(.*)".*/) {
$regex = $1;
$regex =~ s/%s/\([0-9a-zA-Z|_]*\)/g;
$regex =~ s/%p/\([0-9a-f]*\)/g;
$regex =~ s/%d/\([-0-9]*\)/g;
$regex =~ s/%ld/\([-0-9]*\)/g;
$regex =~ s/%lu/\([0-9]*\)/g;
}
}
}
# Can't handle the print_flags stuff but in the context of this
# script, it really doesn't matter
$regex =~ s/\(REC.*\) \? __print_flags.*//;
# Verify fields are in the right order
my $tuple;
foreach $tuple (split /\s/, $regex) {
my ($key, $value) = split(/=/, $tuple);
my $expected = shift;
if ($key ne $expected) {
print("WARNING: Format not as expected for event $event '$key' != '$expected'\n");
$regex =~ s/$key=\((.*)\)/$key=$1/;
}
}
if (defined shift) {
die("Fewer fields than expected in format");
}
return $regex;
}
$regex_direct_begin = generate_traceevent_regex(
"vmscan/mm_vmscan_direct_reclaim_begin",
$regex_direct_begin_default,
"order", "may_writepage",
"gfp_flags");
$regex_direct_end = generate_traceevent_regex(
"vmscan/mm_vmscan_direct_reclaim_end",
$regex_direct_end_default,
"nr_reclaimed");
$regex_kswapd_wake = generate_traceevent_regex(
"vmscan/mm_vmscan_kswapd_wake",
$regex_kswapd_wake_default,
"nid", "order");
$regex_kswapd_sleep = generate_traceevent_regex(
"vmscan/mm_vmscan_kswapd_sleep",
$regex_kswapd_sleep_default,
"nid");
$regex_wakeup_kswapd = generate_traceevent_regex(
"vmscan/mm_vmscan_wakeup_kswapd",
$regex_wakeup_kswapd_default,
"nid", "zid", "order");
$regex_lru_isolate = generate_traceevent_regex(
"vmscan/mm_vmscan_lru_isolate",
$regex_lru_isolate_default,
"isolate_mode", "order",
"nr_requested", "nr_scanned", "nr_taken",
"contig_taken", "contig_dirty", "contig_failed");
$regex_lru_shrink_inactive = generate_traceevent_regex(
"vmscan/mm_vmscan_lru_shrink_inactive",
$regex_lru_shrink_inactive_default,
"nid", "zid",
"lru",
"nr_scanned", "nr_reclaimed", "priority");
$regex_lru_shrink_active = generate_traceevent_regex(
"vmscan/mm_vmscan_lru_shrink_active",
$regex_lru_shrink_active_default,
"nid", "zid",
"lru",
"nr_scanned", "nr_rotated", "priority");
$regex_writepage = generate_traceevent_regex(
"vmscan/mm_vmscan_writepage",
$regex_writepage_default,
"page", "pfn", "flags");
sub read_statline($) {
my $pid = $_[0];
my $statline;
if (open(STAT, "/proc/$pid/stat")) {
$statline = <STAT>;
close(STAT);
}
if ($statline eq '') {
$statline = "-1 (UNKNOWN_PROCESS_NAME) R 0";
}
return $statline;
}
sub guess_process_pid($$) {
my $pid = $_[0];
my $statline = $_[1];
if ($pid == 0) {
return "swapper-0";
}
if ($statline !~ /$regex_statname/o) {
die("Failed to math stat line for process name :: $statline");
}
return "$1-$pid";
}
# Convert sec.usec timestamp format
sub timestamp_to_ms($) {
my $timestamp = $_[0];
my ($sec, $usec) = split (/\./, $timestamp);
return ($sec * 1000) + ($usec / 1000);
}
sub process_events {
my $traceevent;
my $process_pid;
my $cpus;
my $timestamp;
my $tracepoint;
my $details;
my $statline;
# Read each line of the event log
EVENT_PROCESS:
while ($traceevent = <STDIN>) {
if ($traceevent =~ /$regex_traceevent/o) {
$process_pid = $1;
$timestamp = $3;
$tracepoint = $4;
$process_pid =~ /(.*)-([0-9]*)$/;
my $process = $1;
my $pid = $2;
if ($process eq "") {
$process = $last_procmap{$pid};
$process_pid = "$process-$pid";
}
$last_procmap{$pid} = $process;
if ($opt_read_procstat) {
$statline = read_statline($pid);
if ($opt_read_procstat && $process eq '') {
$process_pid = guess_process_pid($pid, $statline);
}
}
} else {
next;
}
# Perl Switch() sucks majorly
if ($tracepoint eq "mm_vmscan_direct_reclaim_begin") {
$timestamp = timestamp_to_ms($timestamp);
$perprocesspid{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN}++;
$perprocesspid{$process_pid}->{STATE_DIRECT_BEGIN} = $timestamp;
$details = $5;
if ($details !~ /$regex_direct_begin/o) {
print "WARNING: Failed to parse mm_vmscan_direct_reclaim_begin as expected\n";
print " $details\n";
print " $regex_direct_begin\n";
next;
}
my $order = $1;
$perprocesspid{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN_PERORDER}[$order]++;
$perprocesspid{$process_pid}->{STATE_DIRECT_ORDER} = $order;
} elsif ($tracepoint eq "mm_vmscan_direct_reclaim_end") {
# Count the event itself
my $index = $perprocesspid{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_END};
$perprocesspid{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_END}++;
# Record how long direct reclaim took this time
if (defined $perprocesspid{$process_pid}->{STATE_DIRECT_BEGIN}) {
$timestamp = timestamp_to_ms($timestamp);
my $order = $perprocesspid{$process_pid}->{STATE_DIRECT_ORDER};
my $latency = ($timestamp - $perprocesspid{$process_pid}->{STATE_DIRECT_BEGIN});
$perprocesspid{$process_pid}->{HIGH_DIRECT_RECLAIM_LATENCY}[$index] = "$order-$latency";
}
} elsif ($tracepoint eq "mm_vmscan_kswapd_wake") {
$details = $5;
if ($details !~ /$regex_kswapd_wake/o) {
print "WARNING: Failed to parse mm_vmscan_kswapd_wake as expected\n";
print " $details\n";
print " $regex_kswapd_wake\n";
next;
}
my $order = $2;
$perprocesspid{$process_pid}->{STATE_KSWAPD_ORDER} = $order;
if (!$perprocesspid{$process_pid}->{STATE_KSWAPD_BEGIN}) {
$timestamp = timestamp_to_ms($timestamp);
$perprocesspid{$process_pid}->{MM_VMSCAN_KSWAPD_WAKE}++;
$perprocesspid{$process_pid}->{STATE_KSWAPD_BEGIN} = $timestamp;
$perprocesspid{$process_pid}->{MM_VMSCAN_KSWAPD_WAKE_PERORDER}[$order]++;
} else {
$perprocesspid{$process_pid}->{HIGH_KSWAPD_REWAKEUP}++;
$perprocesspid{$process_pid}->{HIGH_KSWAPD_REWAKEUP_PERORDER}[$order]++;
}
} elsif ($tracepoint eq "mm_vmscan_kswapd_sleep") {
# Count the event itself
my $index = $perprocesspid{$process_pid}->{MM_VMSCAN_KSWAPD_SLEEP};
$perprocesspid{$process_pid}->{MM_VMSCAN_KSWAPD_SLEEP}++;
# Record how long kswapd was awake
$timestamp = timestamp_to_ms($timestamp);
my $order = $perprocesspid{$process_pid}->{STATE_KSWAPD_ORDER};
my $latency = ($timestamp - $perprocesspid{$process_pid}->{STATE_KSWAPD_BEGIN});
$perprocesspid{$process_pid}->{HIGH_KSWAPD_LATENCY}[$index] = "$order-$latency";
$perprocesspid{$process_pid}->{STATE_KSWAPD_BEGIN} = 0;
} elsif ($tracepoint eq "mm_vmscan_wakeup_kswapd") {
$perprocesspid{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD}++;
$details = $5;
if ($details !~ /$regex_wakeup_kswapd/o) {
print "WARNING: Failed to parse mm_vmscan_wakeup_kswapd as expected\n";
print " $details\n";
print " $regex_wakeup_kswapd\n";
next;
}
my $order = $3;
$perprocesspid{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD_PERORDER}[$order]++;
} elsif ($tracepoint eq "mm_vmscan_lru_isolate") {
$details = $5;
if ($details !~ /$regex_lru_isolate/o) {
print "WARNING: Failed to parse mm_vmscan_lru_isolate as expected\n";
print " $details\n";
print " $regex_lru_isolate/o\n";
next;
}
my $nr_scanned = $4;
my $nr_contig_dirty = $7;
$perprocesspid{$process_pid}->{HIGH_NR_SCANNED} += $nr_scanned;
$perprocesspid{$process_pid}->{HIGH_NR_CONTIG_DIRTY} += $nr_contig_dirty;
} elsif ($tracepoint eq "mm_vmscan_writepage") {
$details = $5;
if ($details !~ /$regex_writepage/o) {
print "WARNING: Failed to parse mm_vmscan_writepage as expected\n";
print " $details\n";
print " $regex_writepage\n";
next;
}
my $flags = $3;
my $file = 0;
my $sync_io = 0;
if ($flags =~ /RECLAIM_WB_FILE/) {
$file = 1;
}
if ($flags =~ /RECLAIM_WB_SYNC/) {
$sync_io = 1;
}
if ($sync_io) {
if ($file) {
$perprocesspid{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC}++;
} else {
$perprocesspid{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC}++;
}
} else {
if ($file) {
$perprocesspid{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC}++;
} else {
$perprocesspid{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_ASYNC}++;
}
}
} else {
$perprocesspid{$process_pid}->{EVENT_UNKNOWN}++;
}
if ($sigint_pending) {
last EVENT_PROCESS;
}
}
}
sub dump_stats {
my $hashref = shift;
my %stats = %$hashref;
# Dump per-process stats
my $process_pid;
my $max_strlen = 0;
# Get the maximum process name
foreach $process_pid (keys %perprocesspid) {
my $len = length($process_pid);
if ($len > $max_strlen) {
$max_strlen = $len;
}
}
$max_strlen += 2;
# Work out latencies
printf("\n") if !$opt_ignorepid;
printf("Reclaim latencies expressed as order-latency_in_ms\n") if !$opt_ignorepid;
foreach $process_pid (keys %stats) {
if (!$stats{$process_pid}->{HIGH_DIRECT_RECLAIM_LATENCY}[0] &&
!$stats{$process_pid}->{HIGH_KSWAPD_LATENCY}[0]) {
next;
}
printf "%-" . $max_strlen . "s ", $process_pid if !$opt_ignorepid;
my $index = 0;
while (defined $stats{$process_pid}->{HIGH_DIRECT_RECLAIM_LATENCY}[$index] ||
defined $stats{$process_pid}->{HIGH_KSWAPD_LATENCY}[$index]) {
if ($stats{$process_pid}->{HIGH_DIRECT_RECLAIM_LATENCY}[$index]) {
printf("%s ", $stats{$process_pid}->{HIGH_DIRECT_RECLAIM_LATENCY}[$index]) if !$opt_ignorepid;
my ($dummy, $latency) = split(/-/, $stats{$process_pid}->{HIGH_DIRECT_RECLAIM_LATENCY}[$index]);
$total_direct_latency += $latency;
} else {
printf("%s ", $stats{$process_pid}->{HIGH_KSWAPD_LATENCY}[$index]) if !$opt_ignorepid;
my ($dummy, $latency) = split(/-/, $stats{$process_pid}->{HIGH_KSWAPD_LATENCY}[$index]);
$total_kswapd_latency += $latency;
}
$index++;
}
print "\n" if !$opt_ignorepid;
}
# Print out process activity
printf("\n");
printf("%-" . $max_strlen . "s %8s %10s %8s %8s %8s %8s %8s\n", "Process", "Direct", "Wokeup", "Pages", "Pages", "Pages", "Time");
printf("%-" . $max_strlen . "s %8s %10s %8s %8s %8s %8s %8s\n", "details", "Rclms", "Kswapd", "Scanned", "Sync-IO", "ASync-IO", "Stalled");
foreach $process_pid (keys %stats) {
if (!$stats{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN}) {
next;
}
$total_direct_reclaim += $stats{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN};
$total_wakeup_kswapd += $stats{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD};
$total_direct_nr_scanned += $stats{$process_pid}->{HIGH_NR_SCANNED};
$total_direct_writepage_file_sync += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC};
$total_direct_writepage_anon_sync += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC};
$total_direct_writepage_file_async += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC};
$total_direct_writepage_anon_async += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_ASYNC};
my $index = 0;
my $this_reclaim_delay = 0;
while (defined $stats{$process_pid}->{HIGH_DIRECT_RECLAIM_LATENCY}[$index]) {
my ($dummy, $latency) = split(/-/, $stats{$process_pid}->{HIGH_DIRECT_RECLAIM_LATENCY}[$index]);
$this_reclaim_delay += $latency;
$index++;
}
printf("%-" . $max_strlen . "s %8d %10d %8u %8u %8u %8.3f",
$process_pid,
$stats{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN},
$stats{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD},
$stats{$process_pid}->{HIGH_NR_SCANNED},
$stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC} + $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC},
$stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC} + $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_ASYNC},
$this_reclaim_delay / 1000);
if ($stats{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN}) {
print " ";
for (my $order = 0; $order < 20; $order++) {
my $count = $stats{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN_PERORDER}[$order];
if ($count != 0) {
print "direct-$order=$count ";
}
}
}
if ($stats{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD}) {
print " ";
for (my $order = 0; $order < 20; $order++) {
my $count = $stats{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD_PERORDER}[$order];
if ($count != 0) {
print "wakeup-$order=$count ";
}
}
}
if ($stats{$process_pid}->{HIGH_NR_CONTIG_DIRTY}) {
print " ";
my $count = $stats{$process_pid}->{HIGH_NR_CONTIG_DIRTY};
if ($count != 0) {
print "contig-dirty=$count ";
}
}
print "\n";
}
# Print out kswapd activity
printf("\n");
printf("%-" . $max_strlen . "s %8s %10s %8s %8s %8s %8s\n", "Kswapd", "Kswapd", "Order", "Pages", "Pages", "Pages");
printf("%-" . $max_strlen . "s %8s %10s %8s %8s %8s %8s\n", "Instance", "Wakeups", "Re-wakeup", "Scanned", "Sync-IO", "ASync-IO");
foreach $process_pid (keys %stats) {
if (!$stats{$process_pid}->{MM_VMSCAN_KSWAPD_WAKE}) {
next;
}
$total_kswapd_wake += $stats{$process_pid}->{MM_VMSCAN_KSWAPD_WAKE};
$total_kswapd_nr_scanned += $stats{$process_pid}->{HIGH_NR_SCANNED};
$total_kswapd_writepage_file_sync += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC};
$total_kswapd_writepage_anon_sync += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC};
$total_kswapd_writepage_file_async += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC};
$total_kswapd_writepage_anon_async += $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_ASYNC};
printf("%-" . $max_strlen . "s %8d %10d %8u %8i %8u",
$process_pid,
$stats{$process_pid}->{MM_VMSCAN_KSWAPD_WAKE},
$stats{$process_pid}->{HIGH_KSWAPD_REWAKEUP},
$stats{$process_pid}->{HIGH_NR_SCANNED},
$stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC} + $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC},
$stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC} + $stats{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_ASYNC});
if ($stats{$process_pid}->{MM_VMSCAN_KSWAPD_WAKE}) {
print " ";
for (my $order = 0; $order < 20; $order++) {
my $count = $stats{$process_pid}->{MM_VMSCAN_KSWAPD_WAKE_PERORDER}[$order];
if ($count != 0) {
print "wake-$order=$count ";
}
}
}
if ($stats{$process_pid}->{HIGH_KSWAPD_REWAKEUP}) {
print " ";
for (my $order = 0; $order < 20; $order++) {
my $count = $stats{$process_pid}->{HIGH_KSWAPD_REWAKEUP_PERORDER}[$order];
if ($count != 0) {
print "rewake-$order=$count ";
}
}
}
printf("\n");
}
# Print out summaries
$total_direct_latency /= 1000;
$total_kswapd_latency /= 1000;
print "\nSummary\n";
print "Direct reclaims: $total_direct_reclaim\n";
print "Direct reclaim pages scanned: $total_direct_nr_scanned\n";
print "Direct reclaim write file sync I/O: $total_direct_writepage_file_sync\n";
print "Direct reclaim write anon sync I/O: $total_direct_writepage_anon_sync\n";
print "Direct reclaim write file async I/O: $total_direct_writepage_file_async\n";
print "Direct reclaim write anon async I/O: $total_direct_writepage_anon_async\n";
print "Wake kswapd requests: $total_wakeup_kswapd\n";
printf "Time stalled direct reclaim: %-1.2f seconds\n", $total_direct_latency;
print "\n";
print "Kswapd wakeups: $total_kswapd_wake\n";
print "Kswapd pages scanned: $total_kswapd_nr_scanned\n";
print "Kswapd reclaim write file sync I/O: $total_kswapd_writepage_file_sync\n";
print "Kswapd reclaim write anon sync I/O: $total_kswapd_writepage_anon_sync\n";
print "Kswapd reclaim write file async I/O: $total_kswapd_writepage_file_async\n";
print "Kswapd reclaim write anon async I/O: $total_kswapd_writepage_anon_async\n";
printf "Time kswapd awake: %-1.2f seconds\n", $total_kswapd_latency;
}
sub aggregate_perprocesspid() {
my $process_pid;
my $process;
undef %perprocess;
foreach $process_pid (keys %perprocesspid) {
$process = $process_pid;
$process =~ s/-([0-9])*$//;
if ($process eq '') {
$process = "NO_PROCESS_NAME";
}
$perprocess{$process}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN} += $perprocesspid{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN};
$perprocess{$process}->{MM_VMSCAN_KSWAPD_WAKE} += $perprocesspid{$process_pid}->{MM_VMSCAN_KSWAPD_WAKE};
$perprocess{$process}->{MM_VMSCAN_WAKEUP_KSWAPD} += $perprocesspid{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD};
$perprocess{$process}->{HIGH_KSWAPD_REWAKEUP} += $perprocesspid{$process_pid}->{HIGH_KSWAPD_REWAKEUP};
$perprocess{$process}->{HIGH_NR_SCANNED} += $perprocesspid{$process_pid}->{HIGH_NR_SCANNED};
$perprocess{$process}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC} += $perprocesspid{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_SYNC};
$perprocess{$process}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC} += $perprocesspid{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_SYNC};
$perprocess{$process}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC} += $perprocesspid{$process_pid}->{MM_VMSCAN_WRITEPAGE_FILE_ASYNC};
$perprocess{$process}->{MM_VMSCAN_WRITEPAGE_ANON_ASYNC} += $perprocesspid{$process_pid}->{MM_VMSCAN_WRITEPAGE_ANON_ASYNC};
for (my $order = 0; $order < 20; $order++) {
$perprocess{$process}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN_PERORDER}[$order] += $perprocesspid{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN_PERORDER}[$order];
$perprocess{$process}->{MM_VMSCAN_WAKEUP_KSWAPD_PERORDER}[$order] += $perprocesspid{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD_PERORDER}[$order];
$perprocess{$process}->{MM_VMSCAN_KSWAPD_WAKE_PERORDER}[$order] += $perprocesspid{$process_pid}->{MM_VMSCAN_KSWAPD_WAKE_PERORDER}[$order];
}
# Aggregate direct reclaim latencies
my $wr_index = $perprocess{$process}->{MM_VMSCAN_DIRECT_RECLAIM_END};
my $rd_index = 0;
while (defined $perprocesspid{$process_pid}->{HIGH_DIRECT_RECLAIM_LATENCY}[$rd_index]) {
$perprocess{$process}->{HIGH_DIRECT_RECLAIM_LATENCY}[$wr_index] = $perprocesspid{$process_pid}->{HIGH_DIRECT_RECLAIM_LATENCY}[$rd_index];
$rd_index++;
$wr_index++;
}
$perprocess{$process}->{MM_VMSCAN_DIRECT_RECLAIM_END} = $wr_index;
# Aggregate kswapd latencies
my $wr_index = $perprocess{$process}->{MM_VMSCAN_KSWAPD_SLEEP};
my $rd_index = 0;
while (defined $perprocesspid{$process_pid}->{HIGH_KSWAPD_LATENCY}[$rd_index]) {
$perprocess{$process}->{HIGH_KSWAPD_LATENCY}[$wr_index] = $perprocesspid{$process_pid}->{HIGH_KSWAPD_LATENCY}[$rd_index];
$rd_index++;
$wr_index++;
}
$perprocess{$process}->{MM_VMSCAN_DIRECT_RECLAIM_END} = $wr_index;
}
}
sub report() {
if (!$opt_ignorepid) {
dump_stats(\%perprocesspid);
} else {
aggregate_perprocesspid();
dump_stats(\%perprocess);
}
}
# Process events or signals until neither is available
sub signal_loop() {
my $sigint_processed;
do {
$sigint_processed = 0;
process_events();
# Handle pending signals if any
if ($sigint_pending) {
my $current_time = time;
if ($sigint_exit) {
print "Received exit signal\n";
$sigint_pending = 0;
}
if ($sigint_report) {
if ($current_time >= $sigint_received + 2) {
report();
$sigint_report = 0;
$sigint_pending = 0;
$sigint_processed = 1;
}
}
}
} while ($sigint_pending || $sigint_processed);
}
signal_loop();
report();

2
Documentation/usb/ehci.txt
View file

@ -9,7 +9,7 @@ compatible with the USB 1.1 standard. It defines three transfer speeds:
- "Low Speed" 1.5 Mbit/sec
USB 1.1 only addressed full speed and low speed. High speed devices
can be used on USB 1.1 systems, but they slow down to USB 1.1 speeds.
can be used on USB 1.1 systems, but they slow down to USB 1.1 speeds.
USB 1.1 devices may also be used on USB 2.0 systems. When plugged
into an EHCI controller, they are given to a USB 1.1 "companion"

150
Documentation/usb/gadget_multi.txt Normal file
View file

@ -0,0 +1,150 @@
-*- org -*-
* Overview
The Multifunction Composite Gadget (or g_multi) is a composite gadget
that makes extensive use of the composite framework to provide
a... multifunction gadget.
In it's standard configuration it provides a single USB configuration
with RNDIS[1] (that is Ethernet), USB CDC[2] ACM (that is serial) and
USB Mass Storage functions.
A CDC ECM (Ethernet) function may be turned on via a Kconfig option
and RNDIS can be turned off. If they are both enabled the gadget will
have two configurations -- one with RNDIS and another with CDC ECM[3].
Please not that if you use non-standard configuration (that is enable
CDC ECM) you may need to change vendor and/or product ID.
* Host drivers
To make use of the gadget one needs to make it work on host side --
without that there's no hope of achieving anything with the gadget.
As one might expect, things one need to do very from system to system.
** Linux host drivers
Since the gadget uses standard composite framework and appears as such
to Linux host it does not need any additional drivers on Linux host
side. All the functions are handled by respective drivers developed
for them.
This is also true for two configuration set-up with RNDIS
configuration being the first one. Linux host will use the second
configuration with CDC ECM which should work better under Linux.
** Windows host drivers
For the gadget two work under Windows two conditions have to be met:
*** Detecting as composite gadget
First of all, Windows need to detect the gadget as an USB composite
gadget which on its own have some conditions[4]. If they are met,
Windows lets USB Generic Parent Driver[5] handle the device which then
tries to much drivers for each individual interface (sort of, don't
get into too many details).
The good news is: you do not have to worry about most of the
conditions!
The only thing to worry is that the gadget has to have a single
configuration so a dual RNDIS and CDC ECM gadget won't work unless you
create a proper INF -- and of course, if you do submit it!
*** Installing drivers for each function
The other, trickier thing is making Windows install drivers for each
individual function.
For mass storage it is trivial since Windows detect it's an interface
implementing USB Mass Storage class and selects appropriate driver.
Things are harder with RDNIS and CDC ACM.
**** RNDIS
To make Windows select RNDIS drivers for the first function in the
gadget, one needs to use the [[file:linux.inf]] file provided with this
document. It "attaches" Window's RNDIS driver to the first interface
of the gadget.
Please note, that while testing we encountered some issues[6] when
RNDIS was not the first interface. You do not need to worry abut it
unless you are trying to develop your own gadget in which case watch
out for this bug.
**** CDC ACM
Similarly, [[file:linux-cdc-acm.inf]] is provided for CDC ACM.
**** Customising the gadget
If you intend to hack the g_multi gadget be advised that rearranging
functions will obviously change interface numbers for each of the
functionality. As an effect provided INFs won't work since they have
interface numbers hard-coded in them (it's not hard to change those
though[7]).
This also means, that after experimenting with g_multi and changing
provided functions one should change gadget's vendor and/or product ID
so there will be no collision with other customised gadgets or the
original gadget.
Failing to comply may cause brain damage after wondering for hours why
things don't work as intended before realising Windows have cached
some drivers information (changing USB port may sometimes help plus
you might try using USBDeview[8] to remove the phantom device).
**** INF testing
Provided INF files have been tested on Windows XP SP3, Windows Vista
and Windows 7, all 32-bit versions. It should work on 64-bit versions
as well. It most likely won't work on Windows prior to Windows XP
SP2.
** Other systems
At this moment, drivers for any other systems have not been tested.
Knowing how MacOS is based on BSD and BSD is an Open Source it is
believed that it should (read: "I have no idea whether it will") work
out-of-the-box.
For more exotic systems I have even less to say...
Any testing and drivers *are* *welcome*!
* Authors
This document has been written by Michal Nazarewicz
([[mailto:mina86@mina86.com]]). INF files have been hacked with
support of Marek Szyprowski ([[mailto:m.szyprowski@samsung.com]]) and
Xiaofan Chen ([[mailto:xiaofanc@gmail.com]]) basing on the MS RNDIS
template[9], Microchip's CDC ACM INF file and David Brownell's
([[mailto:dbrownell@users.sourceforge.net]]) original INF files.
* Footnotes
[1] Remote Network Driver Interface Specification,
[[http://msdn.microsoft.com/en-us/library/ee484414.aspx]].
[2] Communications Device Class Abstract Control Model, spec for this
and other USB classes can be found at
[[http://www.usb.org/developers/devclass_docs/]].
[3] CDC Ethernet Control Model.
[4] [[http://msdn.microsoft.com/en-us/library/ff537109(v=VS.85).aspx]]
[5] [[http://msdn.microsoft.com/en-us/library/ff539234(v=VS.85).aspx]]
[6] To put it in some other nice words, Windows failed to respond to
any user input.
[7] You may find [[http://www.cygnal.org/ubb/Forum9/HTML/001050.html]]
useful.
[8] http://www.nirsoft.net/utils/usb_devices_view.html
[9] [[http://msdn.microsoft.com/en-us/library/ff570620.aspx]]

87
Documentation/usb/gadget_serial.txt
View file

@ -151,88 +151,23 @@ instructions below to install the host side driver.
Installing the Windows Host ACM Driver
--------------------------------------
To use the Windows ACM driver you must have the files "gserial.inf"
and "usbser.sys" together in a folder on the Windows machine.
The "gserial.inf" file is given here.
-------------------- CUT HERE --------------------
[Version]
Signature="$Windows NT$"
Class=Ports
ClassGuid={4D36E978-E325-11CE-BFC1-08002BE10318}
Provider=%LINUX%
DriverVer=08/17/2004,0.0.2.0
; Copyright (C) 2004 Al Borchers (alborchers@steinerpoint.com)
[Manufacturer]
%LINUX%=GSerialDeviceList
[GSerialDeviceList]
%GSERIAL%=GSerialInstall, USB\VID_0525&PID_A4A7
[DestinationDirs]
DefaultDestDir=10,System32\Drivers
[GSerialInstall]
CopyFiles=GSerialCopyFiles
AddReg=GSerialAddReg
[GSerialCopyFiles]
usbser.sys
[GSerialAddReg]
HKR,,DevLoader,,*ntkern
HKR,,NTMPDriver,,usbser.sys
HKR,,EnumPropPages32,,"MsPorts.dll,SerialPortPropPageProvider"
[GSerialInstall.Services]
AddService = usbser,0x0002,GSerialService
[GSerialService]
DisplayName = %GSERIAL_DISPLAY_NAME%
ServiceType = 1 ; SERVICE_KERNEL_DRIVER
StartType = 3 ; SERVICE_DEMAND_START
ErrorControl = 1 ; SERVICE_ERROR_NORMAL
ServiceBinary = %10%\System32\Drivers\usbser.sys
LoadOrderGroup = Base
[Strings]
LINUX = "Linux"
GSERIAL = "Gadget Serial"
GSERIAL_DISPLAY_NAME = "USB Gadget Serial Driver"
-------------------- CUT HERE --------------------
The "usbser.sys" file comes with various versions of Windows.
For example, it can be found on Windows XP typically in
C:\WINDOWS\Driver Cache\i386\driver.cab
Or it can be found on the Windows 98SE CD in the "win98" folder
in the "DRIVER11.CAB" through "DRIVER20.CAB" cab files. You will
need the DOS "expand" program, the Cygwin "cabextract" program, or
a similar program to unpack these cab files and extract "usbser.sys".
For example, to extract "usbser.sys" into the current directory
on Windows XP, open a DOS window and run a command like
expand C:\WINDOWS\Driver~1\i386\driver.cab -F:usbser.sys .
(Thanks to Nishant Kamat for pointing out this DOS command.)
To use the Windows ACM driver you must have the "linux-cdc-acm.inf"
file (provided along this document) which supports all recent versions
of Windows.
When the gadget serial driver is loaded and the USB device connected
to the Windows host with a USB cable, Windows should recognize the
gadget serial device and ask for a driver. Tell Windows to find the
driver in the folder that contains "gserial.inf" and "usbser.sys".
driver in the folder that contains the "linux-cdc-acm.inf" file.
For example, on Windows XP, when the gadget serial device is first
plugged in, the "Found New Hardware Wizard" starts up. Select
"Install from a list or specific location (Advanced)", then on
the next screen select "Include this location in the search" and
enter the path or browse to the folder containing "gserial.inf" and
"usbser.sys". Windows will complain that the Gadget Serial driver
has not passed Windows Logo testing, but select "Continue anyway"
and finish the driver installation.
"Install from a list or specific location (Advanced)", then on the
next screen select "Include this location in the search" and enter the
path or browse to the folder containing the "linux-cdc-acm.inf" file.
Windows will complain that the Gadget Serial driver has not passed
Windows Logo testing, but select "Continue anyway" and finish the
driver installation.
On Windows XP, in the "Device Manager" (under "Control Panel",
"System", "Hardware") expand the "Ports (COM & LPT)" entry and you
@ -345,5 +280,3 @@ you should be able to send data back and forth between the gadget
side and host side systems. Anything you type on the terminal
window on the gadget side should appear in the terminal window on
the host side and vice versa.

4
Documentation/usb/hotplug.txt
View file

@ -10,7 +10,7 @@ immediately usable. That means the system must do many things, including:
- Bind a driver to that device. Bus frameworks do that using a
device driver's probe() routine.
- Tell other subsystems to configure the new device. Print
queues may need to be enabled, networks brought up, disk
partitions mounted, and so on. In some cases these will
@ -84,7 +84,7 @@ USB MODUTILS SUPPORT
Current versions of module-init-tools will create a "modules.usbmap" file
which contains the entries from each driver's MODULE_DEVICE_TABLE. Such
files can be used by various user mode policy agents to make sure all the
right driver modules get loaded, either at boot time or later.
right driver modules get loaded, either at boot time or later.
See <linux/usb.h> for full information about such table entries; or look
at existing drivers. Each table entry describes one or more criteria to

107
Documentation/usb/linux-cdc-acm.inf Normal file
View file

@ -0,0 +1,107 @@
; Windows USB CDC ACM Setup File
; Based on INF template which was:
; Copyright (c) 2000 Microsoft Corporation
; Copyright (c) 2007 Microchip Technology Inc.
; likely to be covered by the MLPL as found at:
; <http://msdn.microsoft.com/en-us/cc300389.aspx#MLPL>.
; For use only on Windows operating systems.
[Version]
Signature="$Windows NT$"
Class=Ports
ClassGuid={4D36E978-E325-11CE-BFC1-08002BE10318}
Provider=%Linux%
DriverVer=11/15/2007,5.1.2600.0
[Manufacturer]
%Linux%=DeviceList, NTamd64
[DestinationDirs]
DefaultDestDir=12
;------------------------------------------------------------------------------
; Windows 2000/XP/Vista-32bit Sections
;------------------------------------------------------------------------------
[DriverInstall.nt]
include=mdmcpq.inf
CopyFiles=DriverCopyFiles.nt
AddReg=DriverInstall.nt.AddReg
[DriverCopyFiles.nt]
usbser.sys,,,0x20
[DriverInstall.nt.AddReg]
HKR,,DevLoader,,*ntkern
HKR,,NTMPDriver,,USBSER.sys
HKR,,EnumPropPages32,,"MsPorts.dll,SerialPortPropPageProvider"
[DriverInstall.nt.Services]
AddService=usbser, 0x00000002, DriverService.nt
[DriverService.nt]
DisplayName=%SERVICE%
ServiceType=1
StartType=3
ErrorControl=1
ServiceBinary=%12%\USBSER.sys
;------------------------------------------------------------------------------
; Vista-64bit Sections
;------------------------------------------------------------------------------
[DriverInstall.NTamd64]
include=mdmcpq.inf
CopyFiles=DriverCopyFiles.NTamd64
AddReg=DriverInstall.NTamd64.AddReg
[DriverCopyFiles.NTamd64]
USBSER.sys,,,0x20
[DriverInstall.NTamd64.AddReg]
HKR,,DevLoader,,*ntkern
HKR,,NTMPDriver,,USBSER.sys
HKR,,EnumPropPages32,,"MsPorts.dll,SerialPortPropPageProvider"
[DriverInstall.NTamd64.Services]
AddService=usbser, 0x00000002, DriverService.NTamd64
[DriverService.NTamd64]
DisplayName=%SERVICE%
ServiceType=1
StartType=3
ErrorControl=1
ServiceBinary=%12%\USBSER.sys
;------------------------------------------------------------------------------
; Vendor and Product ID Definitions
;------------------------------------------------------------------------------
; When developing your USB device, the VID and PID used in the PC side
; application program and the firmware on the microcontroller must match.
; Modify the below line to use your VID and PID. Use the format as shown
; below.
; Note: One INF file can be used for multiple devices with different
; VID and PIDs. For each supported device, append
; ",USB\VID_xxxx&PID_yyyy" to the end of the line.
;------------------------------------------------------------------------------
[SourceDisksFiles]
[SourceDisksNames]
[DeviceList]
%DESCRIPTION%=DriverInstall, USB\VID_0525&PID_A4A7, USB\VID_0525&PID_A4AB&MI_02
[DeviceList.NTamd64]
%DESCRIPTION%=DriverInstall, USB\VID_0525&PID_A4A7, USB\VID_0525&PID_A4AB&MI_02
;------------------------------------------------------------------------------
; String Definitions
;------------------------------------------------------------------------------
;Modify these strings to customize your device
;------------------------------------------------------------------------------
[Strings]
Linux = "Linux Developer Community"
DESCRIPTION = "Gadget Serial"
SERVICE = "USB RS-232 Emulation Driver"

222
Documentation/usb/linux.inf
View file

@ -1,200 +1,66 @@
; MS-Windows driver config matching some basic modes of the
; Linux-USB Ethernet/RNDIS gadget firmware:
;
; - RNDIS plus CDC Ethernet ... this may be familiar as a DOCSIS
; cable modem profile, and supports most non-Microsoft USB hosts
;
; - RNDIS plus CDC Subset ... used by hardware that incapable of
; full CDC Ethernet support.
;
; Microsoft only directly supports RNDIS drivers, and bundled them into XP.
; The Microsoft "Remote NDIS USB Driver Kit" is currently found at:
; http://www.microsoft.com/whdc/device/network/ndis/rmndis.mspx
; Based on template INF file found at
; <http://msdn.microsoft.com/en-us/library/ff570620.aspx>
; which was:
; Copyright (c) Microsoft Corporation
; and released under the MLPL as found at:
; <http://msdn.microsoft.com/en-us/cc300389.aspx#MLPL>.
; For use only on Windows operating systems.
[Version]
Signature = "$CHICAGO$"
Signature = "$Windows NT$"
Class = Net
ClassGUID = {4d36e972-e325-11ce-bfc1-08002be10318}
Provider = %Linux%
Compatible = 1
MillenniumPreferred = .ME
DriverVer = 03/30/2004,0.0.0.0
; catalog file would be used by WHQL
;CatalogFile = Linux.cat
DriverVer = 06/21/2006,6.0.6000.16384
[Manufacturer]
%Linux% = LinuxDevices,NT.5.1
%Linux% = LinuxDevices,NTx86,NTamd64,NTia64
[LinuxDevices]
; NetChip IDs, used by both firmware modes
%LinuxDevice% = RNDIS, USB\VID_0525&PID_a4a2
; Decoration for x86 architecture
[LinuxDevices.NTx86]
%LinuxDevice% = RNDIS.NT.5.1, USB\VID_0525&PID_a4a2, USB\VID_0525&PID_a4ab&MI_00
[LinuxDevices.NT.5.1]
%LinuxDevice% = RNDIS.NT.5.1, USB\VID_0525&PID_a4a2
; Decoration for x64 architecture
[LinuxDevices.NTamd64]
%LinuxDevice% = RNDIS.NT.5.1, USB\VID_0525&PID_a4a2, USB\VID_0525&PID_a4ab&MI_00
; Decoration for ia64 architecture
[LinuxDevices.NTia64]
%LinuxDevice% = RNDIS.NT.5.1, USB\VID_0525&PID_a4a2, USB\VID_0525&PID_a4ab&MI_00
;@@@ This is the common setting for setup
[ControlFlags]
ExcludeFromSelect=*
; Windows 98, Windows 98 Second Edition specific sections --------
[RNDIS]
DeviceID = usb8023
MaxInstance = 512
DriverVer = 03/30/2004,0.0.0.0
AddReg = RNDIS_AddReg_98, RNDIS_AddReg_Common
[RNDIS_AddReg_98]
HKR, , DevLoader, 0, *ndis
HKR, , DeviceVxDs, 0, usb8023.sys
HKR, NDIS, LogDriverName, 0, "usb8023"
HKR, NDIS, MajorNdisVersion, 1, 5
HKR, NDIS, MinorNdisVersion, 1, 0
HKR, Ndi\Interfaces, DefUpper, 0, "ndis3,ndis4,ndis5"
HKR, Ndi\Interfaces, DefLower, 0, "ethernet"
HKR, Ndi\Interfaces, UpperRange, 0, "ndis3,ndis4,ndis5"
HKR, Ndi\Interfaces, LowerRange, 0, "ethernet"
HKR, Ndi\Install, ndis3, 0, "RNDIS_Install_98"
HKR, Ndi\Install, ndis4, 0, "RNDIS_Install_98"
HKR, Ndi\Install, ndis5, 0, "RNDIS_Install_98"
HKR, Ndi, DeviceId, 0, "USB\VID_0525&PID_a4a2"
[RNDIS_Install_98]
CopyFiles=RNDIS_CopyFiles_98
[RNDIS_CopyFiles_98]
usb8023.sys, usb8023w.sys, , 0
rndismp.sys, rndismpw.sys, , 0
; Windows Millennium Edition specific sections --------------------
[RNDIS.ME]
DeviceID = usb8023
MaxInstance = 512
DriverVer = 03/30/2004,0.0.0.0
AddReg = RNDIS_AddReg_ME, RNDIS_AddReg_Common
Characteristics = 0x84 ; NCF_PHYSICAL + NCF_HAS_UI
BusType = 15
[RNDIS_AddReg_ME]
HKR, , DevLoader, 0, *ndis
HKR, , DeviceVxDs, 0, usb8023.sys
HKR, NDIS, LogDriverName, 0, "usb8023"
HKR, NDIS, MajorNdisVersion, 1, 5
HKR, NDIS, MinorNdisVersion, 1, 0
HKR, Ndi\Interfaces, DefUpper, 0, "ndis3,ndis4,ndis5"
HKR, Ndi\Interfaces, DefLower, 0, "ethernet"
HKR, Ndi\Interfaces, UpperRange, 0, "ndis3,ndis4,ndis5"
HKR, Ndi\Interfaces, LowerRange, 0, "ethernet"
HKR, Ndi\Install, ndis3, 0, "RNDIS_Install_ME"
HKR, Ndi\Install, ndis4, 0, "RNDIS_Install_ME"
HKR, Ndi\Install, ndis5, 0, "RNDIS_Install_ME"
HKR, Ndi, DeviceId, 0, "USB\VID_0525&PID_a4a2"
[RNDIS_Install_ME]
CopyFiles=RNDIS_CopyFiles_ME
[RNDIS_CopyFiles_ME]
usb8023.sys, usb8023m.sys, , 0
rndismp.sys, rndismpm.sys, , 0
; Windows 2000 specific sections ---------------------------------
[RNDIS.NT]
Characteristics = 0x84 ; NCF_PHYSICAL + NCF_HAS_UI
BusType = 15
DriverVer = 03/30/2004,0.0.0.0
AddReg = RNDIS_AddReg_NT, RNDIS_AddReg_Common
CopyFiles = RNDIS_CopyFiles_NT
[RNDIS.NT.Services]
AddService = USB_RNDIS, 2, RNDIS_ServiceInst_NT, RNDIS_EventLog
[RNDIS_CopyFiles_NT]
; no rename of files on Windows 2000, use the 'k' names as is
usb8023k.sys, , , 0
rndismpk.sys, , , 0
[RNDIS_ServiceInst_NT]
DisplayName = %ServiceDisplayName%
ServiceType = 1
StartType = 3
ErrorControl = 1
ServiceBinary = %12%\usb8023k.sys
LoadOrderGroup = NDIS
AddReg = RNDIS_WMI_AddReg_NT
[RNDIS_WMI_AddReg_NT]
HKR, , MofImagePath, 0x00020000, "System32\drivers\rndismpk.sys"
; Windows XP specific sections -----------------------------------
; DDInstall section
; References the in-build Netrndis.inf
[RNDIS.NT.5.1]
Characteristics = 0x84 ; NCF_PHYSICAL + NCF_HAS_UI
BusType = 15
DriverVer = 03/30/2004,0.0.0.0
AddReg = RNDIS_AddReg_NT, RNDIS_AddReg_Common
; no copyfiles - the files are already in place
Characteristics = 0x84 ; NCF_PHYSICAL + NCF_HAS_UI
BusType = 15
; NEVER REMOVE THE FOLLOWING REFERENCE FOR NETRNDIS.INF
include = netrndis.inf
needs = Usb_Rndis.ndi
AddReg = Rndis_AddReg_Vista
; DDInstal.Services section
[RNDIS.NT.5.1.Services]
AddService = USB_RNDIS, 2, RNDIS_ServiceInst_51, RNDIS_EventLog
include = netrndis.inf
needs = Usb_Rndis.ndi.Services
[RNDIS_ServiceInst_51]
DisplayName = %ServiceDisplayName%
ServiceType = 1
StartType = 3
ErrorControl = 1
ServiceBinary = %12%\usb8023.sys
LoadOrderGroup = NDIS
AddReg = RNDIS_WMI_AddReg_51
; Optional registry settings. You can modify as needed.
[RNDIS_AddReg_Vista]
HKR, NDI\params\VistaProperty, ParamDesc, 0, %Vista_Property%
HKR, NDI\params\VistaProperty, type, 0, "edit"
HKR, NDI\params\VistaProperty, LimitText, 0, "12"
HKR, NDI\params\VistaProperty, UpperCase, 0, "1"
HKR, NDI\params\VistaProperty, default, 0, " "
HKR, NDI\params\VistaProperty, optional, 0, "1"
[RNDIS_WMI_AddReg_51]
HKR, , MofImagePath, 0x00020000, "System32\drivers\rndismp.sys"
; Windows 2000 and Windows XP common sections --------------------
[RNDIS_AddReg_NT]
HKR, Ndi, Service, 0, "USB_RNDIS"
HKR, Ndi\Interfaces, UpperRange, 0, "ndis5"
HKR, Ndi\Interfaces, LowerRange, 0, "ethernet"
[RNDIS_EventLog]
AddReg = RNDIS_EventLog_AddReg
[RNDIS_EventLog_AddReg]
HKR, , EventMessageFile, 0x00020000, "%%SystemRoot%%\System32\netevent.dll"
HKR, , TypesSupported, 0x00010001, 7
; Common Sections -------------------------------------------------
[RNDIS_AddReg_Common]
HKR, NDI\params\NetworkAddress, ParamDesc, 0, %NetworkAddress%
HKR, NDI\params\NetworkAddress, type, 0, "edit"
HKR, NDI\params\NetworkAddress, LimitText, 0, "12"
HKR, NDI\params\NetworkAddress, UpperCase, 0, "1"
HKR, NDI\params\NetworkAddress, default, 0, " "
HKR, NDI\params\NetworkAddress, optional, 0, "1"
[SourceDisksNames]
1=%SourceDisk%,,1
[SourceDisksFiles]
usb8023m.sys=1
rndismpm.sys=1
usb8023w.sys=1
rndismpw.sys=1
usb8023k.sys=1
rndismpk.sys=1
[DestinationDirs]
RNDIS_CopyFiles_98 = 10, system32/drivers
RNDIS_CopyFiles_ME = 10, system32/drivers
RNDIS_CopyFiles_NT = 12
; No sys copyfiles - the sys files are already in-build
; (part of the operating system).
; We do not support XP SP1-, 2003 SP1-, ME, 9x.
[Strings]
ServiceDisplayName = "USB Remote NDIS Network Device Driver"
NetworkAddress = "Network Address"
Linux = "Linux Developer Community"
LinuxDevice = "Linux USB Ethernet/RNDIS Gadget"
SourceDisk = "Ethernet/RNDIS Gadget Driver Install Disk"
Vista_Property = "Optional Vista Property"

648
Documentation/video4linux/v4l2-controls.txt Normal file
View file

@ -0,0 +1,648 @@
Introduction
============
The V4L2 control API seems simple enough, but quickly becomes very hard to
implement correctly in drivers. But much of the code needed to handle controls
is actually not driver specific and can be moved to the V4L core framework.
After all, the only part that a driver developer is interested in is:
1) How do I add a control?
2) How do I set the control's value? (i.e. s_ctrl)
And occasionally:
3) How do I get the control's value? (i.e. g_volatile_ctrl)
4) How do I validate the user's proposed control value? (i.e. try_ctrl)
All the rest is something that can be done centrally.
The control framework was created in order to implement all the rules of the
V4L2 specification with respect to controls in a central place. And to make
life as easy as possible for the driver developer.
Note that the control framework relies on the presence of a struct v4l2_device
for V4L2 drivers and struct v4l2_subdev for sub-device drivers.
Objects in the framework
========================
There are two main objects:
The v4l2_ctrl object describes the control properties and keeps track of the
control's value (both the current value and the proposed new value).
v4l2_ctrl_handler is the object that keeps track of controls. It maintains a
list of v4l2_ctrl objects that it owns and another list of references to
controls, possibly to controls owned by other handlers.
Basic usage for V4L2 and sub-device drivers
===========================================
1) Prepare the driver:
1.1) Add the handler to your driver's top-level struct:
struct foo_dev {
...
struct v4l2_ctrl_handler ctrl_handler;
...
};
struct foo_dev *foo;
1.2) Initialize the handler:
v4l2_ctrl_handler_init(&foo->ctrl_handler, nr_of_controls);
The second argument is a hint telling the function how many controls this
handler is expected to handle. It will allocate a hashtable based on this
information. It is a hint only.
1.3) Hook the control handler into the driver:
1.3.1) For V4L2 drivers do this:
struct foo_dev {
...
struct v4l2_device v4l2_dev;
...
struct v4l2_ctrl_handler ctrl_handler;
...
};
foo->v4l2_dev.ctrl_handler = &foo->ctrl_handler;
Where foo->v4l2_dev is of type struct v4l2_device.
Finally, remove all control functions from your v4l2_ioctl_ops:
vidioc_queryctrl, vidioc_querymenu, vidioc_g_ctrl, vidioc_s_ctrl,
vidioc_g_ext_ctrls, vidioc_try_ext_ctrls and vidioc_s_ext_ctrls.
Those are now no longer needed.
1.3.2) For sub-device drivers do this:
struct foo_dev {
...
struct v4l2_subdev sd;
...
struct v4l2_ctrl_handler ctrl_handler;
...
};
foo->sd.ctrl_handler = &foo->ctrl_handler;
Where foo->sd is of type struct v4l2_subdev.
And set all core control ops in your struct v4l2_subdev_core_ops to these
helpers:
.queryctrl = v4l2_subdev_queryctrl,
.querymenu = v4l2_subdev_querymenu,
.g_ctrl = v4l2_subdev_g_ctrl,
.s_ctrl = v4l2_subdev_s_ctrl,
.g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
.try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
.s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
Note: this is a temporary solution only. Once all V4L2 drivers that depend
on subdev drivers are converted to the control framework these helpers will
no longer be needed.
1.4) Clean up the handler at the end:
v4l2_ctrl_handler_free(&foo->ctrl_handler);
2) Add controls:
You add non-menu controls by calling v4l2_ctrl_new_std:
struct v4l2_ctrl *v4l2_ctrl_new_std(struct v4l2_ctrl_handler *hdl,
const struct v4l2_ctrl_ops *ops,
u32 id, s32 min, s32 max, u32 step, s32 def);
Menu controls are added by calling v4l2_ctrl_new_std_menu:
struct v4l2_ctrl *v4l2_ctrl_new_std_menu(struct v4l2_ctrl_handler *hdl,
const struct v4l2_ctrl_ops *ops,
u32 id, s32 max, s32 skip_mask, s32 def);
These functions are typically called right after the v4l2_ctrl_handler_init:
v4l2_ctrl_handler_init(&foo->ctrl_handler, nr_of_controls);
v4l2_ctrl_new_std(&foo->ctrl_handler, &foo_ctrl_ops,
V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
v4l2_ctrl_new_std(&foo->ctrl_handler, &foo_ctrl_ops,
V4L2_CID_CONTRAST, 0, 255, 1, 128);
v4l2_ctrl_new_std_menu(&foo->ctrl_handler, &foo_ctrl_ops,
V4L2_CID_POWER_LINE_FREQUENCY,
V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 0,
V4L2_CID_POWER_LINE_FREQUENCY_DISABLED);
...
if (foo->ctrl_handler.error) {
int err = foo->ctrl_handler.error;
v4l2_ctrl_handler_free(&foo->ctrl_handler);
return err;
}
The v4l2_ctrl_new_std function returns the v4l2_ctrl pointer to the new
control, but if you do not need to access the pointer outside the control ops,
then there is no need to store it.
The v4l2_ctrl_new_std function will fill in most fields based on the control
ID except for the min, max, step and default values. These are passed in the
last four arguments. These values are driver specific while control attributes
like type, name, flags are all global. The control's current value will be set
to the default value.
The v4l2_ctrl_new_std_menu function is very similar but it is used for menu
controls. There is no min argument since that is always 0 for menu controls,
and instead of a step there is a skip_mask argument: if bit X is 1, then menu
item X is skipped.
Note that if something fails, the function will return NULL or an error and
set ctrl_handler->error to the error code. If ctrl_handler->error was already
set, then it will just return and do nothing. This is also true for
v4l2_ctrl_handler_init if it cannot allocate the internal data structure.
This makes it easy to init the handler and just add all controls and only check
the error code at the end. Saves a lot of repetitive error checking.
It is recommended to add controls in ascending control ID order: it will be
a bit faster that way.
3) Optionally force initial control setup:
v4l2_ctrl_handler_setup(&foo->ctrl_handler);
This will call s_ctrl for all controls unconditionally. Effectively this
initializes the hardware to the default control values. It is recommended
that you do this as this ensures that both the internal data structures and
the hardware are in sync.
4) Finally: implement the v4l2_ctrl_ops
static const struct v4l2_ctrl_ops foo_ctrl_ops = {
.s_ctrl = foo_s_ctrl,
};
Usually all you need is s_ctrl:
static int foo_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct foo *state = container_of(ctrl->handler, struct foo, ctrl_handler);
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
write_reg(0x123, ctrl->val);
break;
case V4L2_CID_CONTRAST:
write_reg(0x456, ctrl->val);
break;
}
return 0;
}
The control ops are called with the v4l2_ctrl pointer as argument.
The new control value has already been validated, so all you need to do is
to actually update the hardware registers.
You're done! And this is sufficient for most of the drivers we have. No need
to do any validation of control values, or implement QUERYCTRL/QUERYMENU. And
G/S_CTRL as well as G/TRY/S_EXT_CTRLS are automatically supported.
==============================================================================
The remainder of this document deals with more advanced topics and scenarios.
In practice the basic usage as described above is sufficient for most drivers.
===============================================================================
Inheriting Controls
===================
When a sub-device is registered with a V4L2 driver by calling
v4l2_device_register_subdev() and the ctrl_handler fields of both v4l2_subdev
and v4l2_device are set, then the controls of the subdev will become
automatically available in the V4L2 driver as well. If the subdev driver
contains controls that already exist in the V4L2 driver, then those will be
skipped (so a V4L2 driver can always override a subdev control).
What happens here is that v4l2_device_register_subdev() calls
v4l2_ctrl_add_handler() adding the controls of the subdev to the controls
of v4l2_device.
Accessing Control Values
========================
The v4l2_ctrl struct contains these two unions:
/* The current control value. */
union {
s32 val;
s64 val64;
char *string;
} cur;
/* The new control value. */
union {
s32 val;
s64 val64;
char *string;
};
Within the control ops you can freely use these. The val and val64 speak for
themselves. The string pointers point to character buffers of length
ctrl->maximum + 1, and are always 0-terminated.
In most cases 'cur' contains the current cached control value. When you create
a new control this value is made identical to the default value. After calling
v4l2_ctrl_handler_setup() this value is passed to the hardware. It is generally
a good idea to call this function.
Whenever a new value is set that new value is automatically cached. This means
that most drivers do not need to implement the g_volatile_ctrl() op. The
exception is for controls that return a volatile register such as a signal
strength read-out that changes continuously. In that case you will need to
implement g_volatile_ctrl like this:
static int foo_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
ctrl->cur.val = read_reg(0x123);
break;
}
}
The 'new value' union is not used in g_volatile_ctrl. In general controls
that need to implement g_volatile_ctrl are read-only controls.
To mark a control as volatile you have to set the is_volatile flag:
ctrl = v4l2_ctrl_new_std(&sd->ctrl_handler, ...);
if (ctrl)
ctrl->is_volatile = 1;
For try/s_ctrl the new values (i.e. as passed by the user) are filled in and
you can modify them in try_ctrl or set them in s_ctrl. The 'cur' union
contains the current value, which you can use (but not change!) as well.
If s_ctrl returns 0 (OK), then the control framework will copy the new final
values to the 'cur' union.
While in g_volatile/s/try_ctrl you can access the value of all controls owned
by the same handler since the handler's lock is held. If you need to access
the value of controls owned by other handlers, then you have to be very careful
not to introduce deadlocks.
Outside of the control ops you have to go through to helper functions to get
or set a single control value safely in your driver:
s32 v4l2_ctrl_g_ctrl(struct v4l2_ctrl *ctrl);
int v4l2_ctrl_s_ctrl(struct v4l2_ctrl *ctrl, s32 val);
These functions go through the control framework just as VIDIOC_G/S_CTRL ioctls
do. Don't use these inside the control ops g_volatile/s/try_ctrl, though, that
will result in a deadlock since these helpers lock the handler as well.
You can also take the handler lock yourself:
mutex_lock(&state->ctrl_handler.lock);
printk(KERN_INFO "String value is '%s'\n", ctrl1->cur.string);
printk(KERN_INFO "Integer value is '%s'\n", ctrl2->cur.val);
mutex_unlock(&state->ctrl_handler.lock);
Menu Controls
=============
The v4l2_ctrl struct contains this union:
union {
u32 step;
u32 menu_skip_mask;
};
For menu controls menu_skip_mask is used. What it does is that it allows you
to easily exclude certain menu items. This is used in the VIDIOC_QUERYMENU
implementation where you can return -EINVAL if a certain menu item is not
present. Note that VIDIOC_QUERYCTRL always returns a step value of 1 for
menu controls.
A good example is the MPEG Audio Layer II Bitrate menu control where the
menu is a list of standardized possible bitrates. But in practice hardware
implementations will only support a subset of those. By setting the skip
mask you can tell the framework which menu items should be skipped. Setting
it to 0 means that all menu items are supported.
You set this mask either through the v4l2_ctrl_config struct for a custom
control, or by calling v4l2_ctrl_new_std_menu().
Custom Controls
===============
Driver specific controls can be created using v4l2_ctrl_new_custom():
static const struct v4l2_ctrl_config ctrl_filter = {
.ops = &ctrl_custom_ops,
.id = V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER,
.name = "Spatial Filter",
.type = V4L2_CTRL_TYPE_INTEGER,
.flags = V4L2_CTRL_FLAG_SLIDER,
.max = 15,
.step = 1,
};
ctrl = v4l2_ctrl_new_custom(&foo->ctrl_handler, &ctrl_filter, NULL);
The last argument is the priv pointer which can be set to driver-specific
private data.
The v4l2_ctrl_config struct also has fields to set the is_private and is_volatile
flags.
If the name field is not set, then the framework will assume this is a standard
control and will fill in the name, type and flags fields accordingly.
Active and Grabbed Controls
===========================
If you get more complex relationships between controls, then you may have to
activate and deactivate controls. For example, if the Chroma AGC control is
on, then the Chroma Gain control is inactive. That is, you may set it, but
the value will not be used by the hardware as long as the automatic gain
control is on. Typically user interfaces can disable such input fields.
You can set the 'active' status using v4l2_ctrl_activate(). By default all
controls are active. Note that the framework does not check for this flag.
It is meant purely for GUIs. The function is typically called from within
s_ctrl.
The other flag is the 'grabbed' flag. A grabbed control means that you cannot
change it because it is in use by some resource. Typical examples are MPEG
bitrate controls that cannot be changed while capturing is in progress.
If a control is set to 'grabbed' using v4l2_ctrl_grab(), then the framework
will return -EBUSY if an attempt is made to set this control. The
v4l2_ctrl_grab() function is typically called from the driver when it
starts or stops streaming.
Control Clusters
================
By default all controls are independent from the others. But in more
complex scenarios you can get dependencies from one control to another.
In that case you need to 'cluster' them:
struct foo {
struct v4l2_ctrl_handler ctrl_handler;
#define AUDIO_CL_VOLUME (0)
#define AUDIO_CL_MUTE (1)
struct v4l2_ctrl *audio_cluster[2];
...
};
state->audio_cluster[AUDIO_CL_VOLUME] =
v4l2_ctrl_new_std(&state->ctrl_handler, ...);
state->audio_cluster[AUDIO_CL_MUTE] =
v4l2_ctrl_new_std(&state->ctrl_handler, ...);
v4l2_ctrl_cluster(ARRAY_SIZE(state->audio_cluster), state->audio_cluster);
From now on whenever one or more of the controls belonging to the same
cluster is set (or 'gotten', or 'tried'), only the control ops of the first
control ('volume' in this example) is called. You effectively create a new
composite control. Similar to how a 'struct' works in C.
So when s_ctrl is called with V4L2_CID_AUDIO_VOLUME as argument, you should set
all two controls belonging to the audio_cluster:
static int foo_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct foo *state = container_of(ctrl->handler, struct foo, ctrl_handler);
switch (ctrl->id) {
case V4L2_CID_AUDIO_VOLUME: {
struct v4l2_ctrl *mute = ctrl->cluster[AUDIO_CL_MUTE];
write_reg(0x123, mute->val ? 0 : ctrl->val);
break;
}
case V4L2_CID_CONTRAST:
write_reg(0x456, ctrl->val);
break;
}
return 0;
}
In the example above the following are equivalent for the VOLUME case:
ctrl == ctrl->cluster[AUDIO_CL_VOLUME] == state->audio_cluster[AUDIO_CL_VOLUME]
ctrl->cluster[AUDIO_CL_MUTE] == state->audio_cluster[AUDIO_CL_MUTE]
Note that controls in a cluster may be NULL. For example, if for some
reason mute was never added (because the hardware doesn't support that
particular feature), then mute will be NULL. So in that case we have a
cluster of 2 controls, of which only 1 is actually instantiated. The
only restriction is that the first control of the cluster must always be
present, since that is the 'master' control of the cluster. The master
control is the one that identifies the cluster and that provides the
pointer to the v4l2_ctrl_ops struct that is used for that cluster.
Obviously, all controls in the cluster array must be initialized to either
a valid control or to NULL.
VIDIOC_LOG_STATUS Support
=========================
This ioctl allow you to dump the current status of a driver to the kernel log.
The v4l2_ctrl_handler_log_status(ctrl_handler, prefix) can be used to dump the
value of the controls owned by the given handler to the log. You can supply a
prefix as well. If the prefix didn't end with a space, then ': ' will be added
for you.
Different Handlers for Different Video Nodes
============================================
Usually the V4L2 driver has just one control handler that is global for
all video nodes. But you can also specify different control handlers for
different video nodes. You can do that by manually setting the ctrl_handler
field of struct video_device.
That is no problem if there are no subdevs involved but if there are, then
you need to block the automatic merging of subdev controls to the global
control handler. You do that by simply setting the ctrl_handler field in
struct v4l2_device to NULL. Now v4l2_device_register_subdev() will no longer
merge subdev controls.
After each subdev was added, you will then have to call v4l2_ctrl_add_handler
manually to add the subdev's control handler (sd->ctrl_handler) to the desired
control handler. This control handler may be specific to the video_device or
for a subset of video_device's. For example: the radio device nodes only have
audio controls, while the video and vbi device nodes share the same control
handler for the audio and video controls.
If you want to have one handler (e.g. for a radio device node) have a subset
of another handler (e.g. for a video device node), then you should first add
the controls to the first handler, add the other controls to the second
handler and finally add the first handler to the second. For example:
v4l2_ctrl_new_std(&radio_ctrl_handler, &radio_ops, V4L2_CID_AUDIO_VOLUME, ...);
v4l2_ctrl_new_std(&radio_ctrl_handler, &radio_ops, V4L2_CID_AUDIO_MUTE, ...);
v4l2_ctrl_new_std(&video_ctrl_handler, &video_ops, V4L2_CID_BRIGHTNESS, ...);
v4l2_ctrl_new_std(&video_ctrl_handler, &video_ops, V4L2_CID_CONTRAST, ...);
v4l2_ctrl_add_handler(&video_ctrl_handler, &radio_ctrl_handler);
Or you can add specific controls to a handler:
volume = v4l2_ctrl_new_std(&video_ctrl_handler, &ops, V4L2_CID_AUDIO_VOLUME, ...);
v4l2_ctrl_new_std(&video_ctrl_handler, &ops, V4L2_CID_BRIGHTNESS, ...);
v4l2_ctrl_new_std(&video_ctrl_handler, &ops, V4L2_CID_CONTRAST, ...);
v4l2_ctrl_add_ctrl(&radio_ctrl_handler, volume);
What you should not do is make two identical controls for two handlers.
For example:
v4l2_ctrl_new_std(&radio_ctrl_handler, &radio_ops, V4L2_CID_AUDIO_MUTE, ...);
v4l2_ctrl_new_std(&video_ctrl_handler, &video_ops, V4L2_CID_AUDIO_MUTE, ...);
This would be bad since muting the radio would not change the video mute
control. The rule is to have one control for each hardware 'knob' that you
can twiddle.
Finding Controls
================
Normally you have created the controls yourself and you can store the struct
v4l2_ctrl pointer into your own struct.
But sometimes you need to find a control from another handler that you do
not own. For example, if you have to find a volume control from a subdev.
You can do that by calling v4l2_ctrl_find:
struct v4l2_ctrl *volume;
volume = v4l2_ctrl_find(sd->ctrl_handler, V4L2_CID_AUDIO_VOLUME);
Since v4l2_ctrl_find will lock the handler you have to be careful where you
use it. For example, this is not a good idea:
struct v4l2_ctrl_handler ctrl_handler;
v4l2_ctrl_new_std(&ctrl_handler, &video_ops, V4L2_CID_BRIGHTNESS, ...);
v4l2_ctrl_new_std(&ctrl_handler, &video_ops, V4L2_CID_CONTRAST, ...);
...and in video_ops.s_ctrl:
case V4L2_CID_BRIGHTNESS:
contrast = v4l2_find_ctrl(&ctrl_handler, V4L2_CID_CONTRAST);
...
When s_ctrl is called by the framework the ctrl_handler.lock is already taken, so
attempting to find another control from the same handler will deadlock.
It is recommended not to use this function from inside the control ops.
Inheriting Controls
===================
When one control handler is added to another using v4l2_ctrl_add_handler, then
by default all controls from one are merged to the other. But a subdev might
have low-level controls that make sense for some advanced embedded system, but
not when it is used in consumer-level hardware. In that case you want to keep
those low-level controls local to the subdev. You can do this by simply
setting the 'is_private' flag of the control to 1:
static const struct v4l2_ctrl_config ctrl_private = {
.ops = &ctrl_custom_ops,
.id = V4L2_CID_...,
.name = "Some Private Control",
.type = V4L2_CTRL_TYPE_INTEGER,
.max = 15,
.step = 1,
.is_private = 1,
};
ctrl = v4l2_ctrl_new_custom(&foo->ctrl_handler, &ctrl_private, NULL);
These controls will now be skipped when v4l2_ctrl_add_handler is called.
V4L2_CTRL_TYPE_CTRL_CLASS Controls
==================================
Controls of this type can be used by GUIs to get the name of the control class.
A fully featured GUI can make a dialog with multiple tabs with each tab
containing the controls belonging to a particular control class. The name of
each tab can be found by querying a special control with ID <control class | 1>.
Drivers do not have to care about this. The framework will automatically add
a control of this type whenever the first control belonging to a new control
class is added.
Differences from the Spec
=========================
There are a few places where the framework acts slightly differently from the
V4L2 Specification. Those differences are described in this section. We will
have to see whether we need to adjust the spec or not.
1) It is no longer required to have all controls contained in a
v4l2_ext_control array be from the same control class. The framework will be
able to handle any type of control in the array. You need to set ctrl_class
to 0 in order to enable this. If ctrl_class is non-zero, then it will still
check that all controls belong to that control class.
If you set ctrl_class to 0 and count to 0, then it will only return an error
if there are no controls at all.
2) Clarified the way error_idx works. For get and set it will be equal to
count if nothing was done yet. If it is less than count then only the controls
up to error_idx-1 were successfully applied.
3) When attempting to read a button control the framework will return -EACCES
instead of -EINVAL as stated in the spec. It seems to make more sense since
button controls are write-only controls.
4) Attempting to write to a read-only control will return -EACCES instead of
-EINVAL as the spec says.
5) The spec does not mention what should happen when you try to set/get a
control class controls. ivtv currently returns -EINVAL (indicating that the
control ID does not exist) while the framework will return -EACCES, which
makes more sense.
Proposals for Extensions
========================
Some ideas for future extensions to the spec:
1) Add a V4L2_CTRL_FLAG_HEX to have values shown as hexadecimal instead of
decimal. Useful for e.g. video_mute_yuv.
2) It is possible to mark in the controls array which controls have been
successfully written and which failed by for example adding a bit to the
control ID. Not sure if it is worth the effort, though.
3) Trying to set volatile inactive controls should result in -EACCESS.
4) Add a new flag to mark volatile controls. Any application that wants
to store the state of the controls can then skip volatile inactive controls.
Currently it is not possible to detect such controls.

2
Documentation/vm/page-types.c
View file

@ -694,7 +694,7 @@ static void usage(void)
#endif
" -l|--list Show page details in ranges\n"
" -L|--list-each Show page details one by one\n"
" -N|--no-summary Don't show summay info\n"
" -N|--no-summary Don't show summary info\n"
" -X|--hwpoison hwpoison pages\n"
" -x|--unpoison unpoison pages\n"
" -h|--help Show this usage message\n"

1
Documentation/x86/zero-page.txt
View file

@ -18,6 +18,7 @@ Offset Proto Name Meaning
080/010 ALL hd0_info hd0 disk parameter, OBSOLETE!!
090/010 ALL hd1_info hd1 disk parameter, OBSOLETE!!
0A0/010 ALL sys_desc_table System description table (struct sys_desc_table)
0B0/010 ALL olpc_ofw_header OLPC's OpenFirmware CIF and friends
140/080 ALL edid_info Video mode setup (struct edid_info)
1C0/020 ALL efi_info EFI 32 information (struct efi_info)
1E0/004 ALL alk_mem_k Alternative mem check, in KB

254
MAINTAINERS
View file

@ -454,9 +454,20 @@ L: linux-rdma@vger.kernel.org
S: Maintained
F: drivers/infiniband/hw/amso1100/
ANALOG DEVICES INC ASOC DRIVERS
L: uclinux-dist-devel@blackfin.uclinux.org
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
W: http://blackfin.uclinux.org/
S: Supported
F: sound/soc/blackfin/*
F: sound/soc/codecs/ad1*
F: sound/soc/codecs/adau*
F: sound/soc/codecs/adav*
F: sound/soc/codecs/ssm*
AOA (Apple Onboard Audio) ALSA DRIVER
M: Johannes Berg <johannes@sipsolutions.net>
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Maintained
F: sound/aoa/
@ -574,7 +585,6 @@ L: linux-mtd@lists.infradead.org
S: Maintained
F: drivers/mtd/nand/bcm_umi_nand.c
F: drivers/mtd/nand/bcm_umi_bch.c
F: drivers/mtd/nand/bcm_umi_hamming.c
F: drivers/mtd/nand/nand_bcm_umi.h
ARM/CAVIUM NETWORKS CNS3XXX MACHINE SUPPORT
@ -617,10 +627,10 @@ M: Richard Purdie <rpurdie@rpsys.net>
S: Maintained
ARM/CORTINA SYSTEMS GEMINI ARM ARCHITECTURE
M: Paulius Zaleckas <paulius.zaleckas@gmail.com>
M: Hans Ulli Kroll <ulli.kroll@googlemail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
T: git git://gitorious.org/linux-gemini/mainline.git
S: Odd Fixes
T: git git://git.berlios.de/gemini-board
S: Maintained
F: arch/arm/mach-gemini/
ARM/EBSA110 MACHINE SUPPORT
@ -642,9 +652,10 @@ T: topgit git://git.openezx.org/openezx.git
F: arch/arm/mach-pxa/ezx.c
ARM/FARADAY FA526 PORT
M: Paulius Zaleckas <paulius.zaleckas@gmail.com>
M: Hans Ulli Kroll <ulli.kroll@googlemail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Odd Fixes
S: Maintained
T: git://git.berlios.de/gemini-board
F: arch/arm/mm/*-fa*
ARM/FOOTBRIDGE ARCHITECTURE
@ -693,6 +704,13 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/kristoffer/linux-hpc.git
F: arch/arm/mach-sa1100/jornada720.c
F: arch/arm/mach-sa1100/include/mach/jornada720.h
ARM/INCOME PXA270 SUPPORT
M: Marek Vasut <marek.vasut@gmail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-pxa/income.c
F: arch/arm/mach-pxa/include/mach-pxa/income.h
ARM/INTEL IOP32X ARM ARCHITECTURE
M: Lennert Buytenhek <kernel@wantstofly.org>
M: Dan Williams <dan.j.williams@intel.com>
@ -948,8 +966,9 @@ ARM/SHMOBILE ARM ARCHITECTURE
M: Paul Mundt <lethal@linux-sh.org>
M: Magnus Damm <magnus.damm@gmail.com>
L: linux-sh@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/lethal/genesis-2.6.git
W: http://oss.renesas.com
Q: http://patchwork.kernel.org/project/linux-sh/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/lethal/genesis-2.6.git
S: Supported
F: arch/arm/mach-shmobile/
F: drivers/sh/
@ -975,12 +994,11 @@ F: drivers/input/keyboard/w90p910_keypad.c
F: drivers/input/touchscreen/w90p910_ts.c
F: drivers/watchdog/nuc900_wdt.c
F: drivers/net/arm/w90p910_ether.c
F: drivers/mtd/nand/w90p910_nand.c
F: drivers/mtd/nand/nuc900_nand.c
F: drivers/rtc/rtc-nuc900.c
F: drivers/spi/spi_nuc900.c
F: drivers/usb/host/ehci-w90x900.c
F: drivers/video/nuc900fb.c
F: drivers/sound/soc/nuc900/
ARM/U300 MACHINE SUPPORT
M: Linus Walleij <linus.walleij@stericsson.com>
@ -1010,14 +1028,14 @@ M: Marek Vasut <marek.vasut@gmail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-pxa/vpac270.c
F: arch/arm/mach-pxa/include/mach-pxa/vpac270.h
F: arch/arm/mach-pxa/include/mach/vpac270.h
ARM/ZIPIT Z2 SUPPORT
M: Marek Vasut <marek.vasut@gmail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-pxa/z2.c
F: arch/arm/mach-pxa/include/mach-pxa/z2.h
F: arch/arm/mach-pxa/include/mach/z2.h
ASC7621 HARDWARE MONITOR DRIVER
M: George Joseph <george.joseph@fairview5.com>
@ -1252,8 +1270,7 @@ S: Maintained
F: drivers/net/hamradio/baycom*
BEFS FILE SYSTEM
M: "Sergey S. Kostyliov" <rathamahata@php4.ru>
S: Maintained
S: Orphan
F: Documentation/filesystems/befs.txt
F: fs/befs/
@ -1466,8 +1483,8 @@ F: include/linux/can/platform/
CELL BROADBAND ENGINE ARCHITECTURE
M: Arnd Bergmann <arnd@arndb.de>
L: linuxppc-dev@ozlabs.org
L: cbe-oss-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
L: cbe-oss-dev@lists.ozlabs.org
W: http://www.ibm.com/developerworks/power/cell/
S: Supported
F: arch/powerpc/include/asm/cell*.h
@ -1568,6 +1585,16 @@ L: platform-driver-x86@vger.kernel.org
S: Supported
F: drivers/platform/x86/classmate-laptop.c
COCCINELLE/Semantic Patches (SmPL)
M: Julia Lawall <julia@diku.dk>
M: Gilles Muller <Gilles.Muller@lip6.fr>
M: Nicolas Palix <npalix@diku.dk>
L: cocci@diku.dk (moderated for non-subscribers)
W: http://coccinelle.lip6.fr/
S: Supported
F: scripts/coccinelle/
F: scripts/coccicheck
CODA FILE SYSTEM
M: Jan Harkes <jaharkes@cs.cmu.edu>
M: coda@cs.cmu.edu
@ -1649,8 +1676,7 @@ F: kernel/cgroup*
F: mm/*cgroup*
CORETEMP HARDWARE MONITORING DRIVER
M: Rudolf Marek <r.marek@assembler.cz>
M: Huaxu Wan <huaxu.wan@intel.com>
M: Fenghua Yu <fenghua.yu@intel.com>
L: lm-sensors@lm-sensors.org
S: Maintained
F: Documentation/hwmon/coretemp
@ -1723,6 +1749,8 @@ CRYPTOGRAPHIC RANDOM NUMBER GENERATOR
M: Neil Horman <nhorman@tuxdriver.com>
L: linux-crypto@vger.kernel.org
S: Maintained
F: crypto/ansi_cprng.c
F: crypto/rng.c
CS5535 Audio ALSA driver
M: Jaya Kumar <jayakumar.alsa@gmail.com>
@ -1881,6 +1909,7 @@ F: drivers/firmware/dcdbas.*
DELL WMI EXTRAS DRIVER
M: Matthew Garrett <mjg59@srcf.ucam.org>
S: Maintained
F: drivers/platform/x86/dell-wmi.c
DEVICE NUMBER REGISTRY
M: Torben Mathiasen <device@lanana.org>
@ -2010,6 +2039,7 @@ L: dri-devel@lists.freedesktop.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git
S: Maintained
F: drivers/gpu/drm/
F: include/drm/
DSCC4 DRIVER
M: Francois Romieu <romieu@fr.zoreil.com>
@ -2198,6 +2228,12 @@ F: drivers/misc/cb710/
F: drivers/mmc/host/cb710-mmc.*
F: include/linux/cb710.h
ENE KB2426 (ENE0100/ENE020XX) INFRARED RECEIVER
M: Maxim Levitsky <maximlevitsky@gmail.com>
S: Maintained
F: drivers/media/IR/ene_ir.c
F: drivers/media/IR/ene_ir.h
EPSON 1355 FRAMEBUFFER DRIVER
M: Christopher Hoover <ch@murgatroid.com>
M: Christopher Hoover <ch@hpl.hp.com>
@ -2232,6 +2268,7 @@ S: Maintained
F: drivers/net/eth16i.c
EXT2 FILE SYSTEM
M: Jan Kara <jack@suse.cz>
L: linux-ext4@vger.kernel.org
S: Maintained
F: Documentation/filesystems/ext2.txt
@ -2239,8 +2276,9 @@ F: fs/ext2/
F: include/linux/ext2*
EXT3 FILE SYSTEM
M: Jan Kara <jack@suse.cz>
M: Andrew Morton <akpm@linux-foundation.org>
M: Andreas Dilger <adilger@sun.com>
M: Andreas Dilger <adilger.kernel@dilger.ca>
L: linux-ext4@vger.kernel.org
S: Maintained
F: Documentation/filesystems/ext3.txt
@ -2249,7 +2287,7 @@ F: include/linux/ext3*
EXT4 FILE SYSTEM
M: "Theodore Ts'o" <tytso@mit.edu>
M: Andreas Dilger <adilger@sun.com>
M: Andreas Dilger <adilger.kernel@dilger.ca>
L: linux-ext4@vger.kernel.org
W: http://ext4.wiki.kernel.org
Q: http://patchwork.ozlabs.org/project/linux-ext4/list/
@ -2264,6 +2302,12 @@ S: Maintained
F: Documentation/hwmon/f71805f
F: drivers/hwmon/f71805f.c
FANOTIFY
M: Eric Paris <eparis@redhat.com>
S: Maintained
F: fs/notify/fanotify/
F: include/linux/fanotify.h
FARSYNC SYNCHRONOUS DRIVER
M: Kevin Curtis <kevin.curtis@farsite.co.uk>
W: http://www.farsite.co.uk/
@ -2317,6 +2361,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git
S: Maintained
F: drivers/firewire/
F: include/linux/firewire*.h
F: tools/firewire/
FIRMWARE LOADER (request_firmware)
S: Orphan
@ -2348,13 +2393,13 @@ F: include/linux/fb.h
FREESCALE DMA DRIVER
M: Li Yang <leoli@freescale.com>
M: Zhang Wei <zw@zh-kernel.org>
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
S: Maintained
F: drivers/dma/fsldma.*
FREESCALE I2C CPM DRIVER
M: Jochen Friedrich <jochen@scram.de>
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
L: linux-i2c@vger.kernel.org
S: Maintained
F: drivers/i2c/busses/i2c-cpm.c
@ -2370,7 +2415,7 @@ F: drivers/video/imxfb.c
FREESCALE SOC FS_ENET DRIVER
M: Pantelis Antoniou <pantelis.antoniou@gmail.com>
M: Vitaly Bordug <vbordug@ru.mvista.com>
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/fs_enet/
@ -2378,7 +2423,7 @@ F: include/linux/fs_enet_pd.h
FREESCALE QUICC ENGINE LIBRARY
M: Timur Tabi <timur@freescale.com>
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
S: Supported
F: arch/powerpc/sysdev/qe_lib/
F: arch/powerpc/include/asm/*qe.h
@ -2386,27 +2431,27 @@ F: arch/powerpc/include/asm/*qe.h
FREESCALE USB PERIPHERAL DRIVERS
M: Li Yang <leoli@freescale.com>
L: linux-usb@vger.kernel.org
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
S: Maintained
F: drivers/usb/gadget/fsl*
FREESCALE QUICC ENGINE UCC ETHERNET DRIVER
M: Li Yang <leoli@freescale.com>
L: netdev@vger.kernel.org
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
S: Maintained
F: drivers/net/ucc_geth*
FREESCALE QUICC ENGINE UCC UART DRIVER
M: Timur Tabi <timur@freescale.com>
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
S: Supported
F: drivers/serial/ucc_uart.c
FREESCALE SOC SOUND DRIVERS
M: Timur Tabi <timur@freescale.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
S: Supported
F: sound/soc/fsl/fsl*
F: sound/soc/fsl/mpc8610_hpcd.c
@ -2541,7 +2586,7 @@ F: mm/memory-failure.c
F: mm/hwpoison-inject.c
HYPERVISOR VIRTUAL CONSOLE DRIVER
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
S: Odd Fixes
F: drivers/char/hvc_*
@ -3202,6 +3247,13 @@ F: Documentation/video4linux/*.ivtv
F: drivers/media/video/ivtv/
F: include/linux/ivtv*
JC42.4 TEMPERATURE SENSOR DRIVER
M: Guenter Roeck <linux@roeck-us.net>
L: lm-sensors@lm-sensors.org
S: Maintained
F: drivers/hwmon/jc42.c
F: Documentation/hwmon/jc42
JFS FILESYSTEM
M: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
L: jfs-discussion@lists.sourceforge.net
@ -3271,8 +3323,8 @@ F: fs/autofs4/
KERNEL BUILD + files below scripts/ (unless maintained elsewhere)
M: Michal Marek <mmarek@suse.cz>
T: git git://repo.or.cz/linux-kbuild.git for-next
T: git git://repo.or.cz/linux-kbuild.git for-linus
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6.git for-next
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6.git rc-fixes
L: linux-kbuild@vger.kernel.org
S: Maintained
F: Documentation/kbuild/
@ -3398,13 +3450,6 @@ F: include/linux/kmemleak.h
F: mm/kmemleak.c
F: mm/kmemleak-test.c
KMEMTRACE
M: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
S: Maintained
F: Documentation/trace/kmemtrace.txt
F: include/linux/kmemtrace.h
F: kernel/trace/kmemtrace.c
KPROBES
M: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
M: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
@ -3453,9 +3498,9 @@ F: drivers/usb/misc/legousbtower.c
LGUEST
M: Rusty Russell <rusty@rustcorp.com.au>
L: lguest@ozlabs.org
L: lguest@lists.ozlabs.org
W: http://lguest.ozlabs.org/
S: Maintained
S: Odd Fixes
F: Documentation/lguest/
F: arch/x86/lguest/
F: drivers/lguest/
@ -3472,7 +3517,7 @@ LINUX FOR POWERPC (32-BIT AND 64-BIT)
M: Benjamin Herrenschmidt <benh@kernel.crashing.org>
M: Paul Mackerras <paulus@samba.org>
W: http://www.penguinppc.org/
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
Q: http://patchwork.ozlabs.org/project/linuxppc-dev/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc.git
S: Supported
@ -3482,14 +3527,14 @@ F: arch/powerpc/
LINUX FOR POWER MACINTOSH
M: Benjamin Herrenschmidt <benh@kernel.crashing.org>
W: http://www.penguinppc.org/
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
S: Maintained
F: arch/powerpc/platforms/powermac/
F: drivers/macintosh/
LINUX FOR POWERPC EMBEDDED MPC5XXX
M: Grant Likely <grant.likely@secretlab.ca>
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
T: git git://git.secretlab.ca/git/linux-2.6.git
S: Maintained
F: arch/powerpc/platforms/512x/
@ -3499,7 +3544,7 @@ LINUX FOR POWERPC EMBEDDED PPC4XX
M: Josh Boyer <jwboyer@linux.vnet.ibm.com>
M: Matt Porter <mporter@kernel.crashing.org>
W: http://www.penguinppc.org/
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx.git
S: Maintained
F: arch/powerpc/platforms/40x/
@ -3508,7 +3553,7 @@ F: arch/powerpc/platforms/44x/
LINUX FOR POWERPC EMBEDDED XILINX VIRTEX
M: Grant Likely <grant.likely@secretlab.ca>
W: http://wiki.secretlab.ca/index.php/Linux_on_Xilinx_Virtex
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
T: git git://git.secretlab.ca/git/linux-2.6.git
S: Maintained
F: arch/powerpc/*/*virtex*
@ -3518,19 +3563,20 @@ LINUX FOR POWERPC EMBEDDED PPC8XX
M: Vitaly Bordug <vitb@kernel.crashing.org>
M: Marcelo Tosatti <marcelo@kvack.org>
W: http://www.penguinppc.org/
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
S: Maintained
F: arch/powerpc/platforms/8xx/
LINUX FOR POWERPC EMBEDDED PPC83XX AND PPC85XX
M: Kumar Gala <galak@kernel.crashing.org>
W: http://www.penguinppc.org/
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
S: Maintained
F: arch/powerpc/platforms/83xx/
LINUX FOR POWERPC PA SEMI PWRFICIENT
M: Olof Johansson <olof@lixom.net>
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
S: Maintained
F: arch/powerpc/platforms/pasemi/
F: drivers/*/*pasemi*
@ -3622,7 +3668,7 @@ M: Mike Frysinger <vapier@gentoo.org>
M: Subrata Modak <subrata@linux.vnet.ibm.com>
L: ltp-list@lists.sourceforge.net (subscribers-only)
W: http://ltp.sourceforge.net/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/galak/ltp.git
T: git git://ltp.git.sourceforge.net/gitroot/ltp/ltp-dev
S: Maintained
M32R ARCHITECTURE
@ -3883,8 +3929,7 @@ F: Documentation/sound/oss/MultiSound
F: sound/oss/msnd*
MULTITECH MULTIPORT CARD (ISICOM)
M: Jiri Slaby <jirislaby@gmail.com>
S: Maintained
S: Orphan
F: drivers/char/isicom.c
F: include/linux/isicom.h
@ -4044,7 +4089,7 @@ F: net/rfkill/
F: net/wireless/
F: include/net/ieee80211*
F: include/linux/wireless.h
F: include/linux/iw_handler.h
F: include/net/iw_handler.h
F: drivers/net/wireless/
NETWORKING DRIVERS
@ -4192,6 +4237,8 @@ M: David Brownell <dbrownell@users.sourceforge.net>
L: linux-usb@vger.kernel.org
L: linux-omap@vger.kernel.org
S: Maintained
F: drivers/usb/*/*omap*
F: arch/arm/*omap*/usb*
OMFS FILESYSTEM
M: Bob Copeland <me@bobcopeland.com>
@ -4376,6 +4423,13 @@ M: Jim Cromie <jim.cromie@gmail.com>
S: Maintained
F: drivers/char/pc8736x_gpio.c
PC87427 HARDWARE MONITORING DRIVER
M: Jean Delvare <khali@linux-fr.org>
L: lm-sensors@lm-sensors.org
S: Maintained
F: Documentation/hwmon/pc87427
F: drivers/hwmon/pc87427.c
PCA9532 LED DRIVER
M: Riku Voipio <riku.voipio@iki.fi>
S: Maintained
@ -4532,7 +4586,7 @@ F: drivers/net/pppox.c
PPP OVER L2TP
M: James Chapman <jchapman@katalix.com>
S: Maintained
F: drivers/net/pppol2tp.c
F: net/l2tp/l2tp_ppp.c
F: include/linux/if_pppol2tp.h
PPS SUPPORT
@ -4559,11 +4613,6 @@ W: http://wireless.kernel.org/en/users/Drivers/p54
S: Obsolete
F: drivers/net/wireless/prism54/
PROMISE DC4030 CACHING DISK CONTROLLER DRIVER
M: Peter Denison <promise@pnd-pc.demon.co.uk>
W: http://www.pnd-pc.demon.co.uk/promise/
S: Maintained
PROMISE SATA TX2/TX4 CONTROLLER LIBATA DRIVER
M: Mikael Pettersson <mikpe@it.uu.se>
L: linux-ide@vger.kernel.org
@ -4573,14 +4622,14 @@ F: drivers/ata/sata_promise.*
PS3 NETWORK SUPPORT
M: Geoff Levand <geoff@infradead.org>
L: netdev@vger.kernel.org
L: cbe-oss-dev@ozlabs.org
L: cbe-oss-dev@lists.ozlabs.org
S: Maintained
F: drivers/net/ps3_gelic_net.*
PS3 PLATFORM SUPPORT
M: Geoff Levand <geoff@infradead.org>
L: linuxppc-dev@ozlabs.org
L: cbe-oss-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
L: cbe-oss-dev@lists.ozlabs.org
S: Maintained
F: arch/powerpc/boot/ps3*
F: arch/powerpc/include/asm/lv1call.h
@ -4594,8 +4643,9 @@ F: sound/ppc/snd_ps3*
PS3VRAM DRIVER
M: Jim Paris <jim@jtan.com>
L: cbe-oss-dev@ozlabs.org
L: cbe-oss-dev@lists.ozlabs.org
S: Maintained
F: drivers/block/ps3vram.c
PTRACE SUPPORT
M: Roland McGrath <roland@redhat.com>
@ -4736,7 +4786,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/ivd/rt2x00.git
F: drivers/net/wireless/rt2x00/
RAMDISK RAM BLOCK DEVICE DRIVER
M: Nick Piggin <npiggin@suse.de>
M: Nick Piggin <npiggin@kernel.dk>
S: Maintained
F: Documentation/blockdev/ramdisk.txt
F: drivers/block/brd.c
@ -4822,8 +4872,8 @@ F: net/rfkill/
RICOH SMARTMEDIA/XD DRIVER
M: Maxim Levitsky <maximlevitsky@gmail.com>
S: Maintained
F: drivers/mtd/nand/r822.c
F: drivers/mtd/nand/r822.h
F: drivers/mtd/nand/r852.c
F: drivers/mtd/nand/r852.h
RISCOM8 DRIVER
S: Orphan
@ -5039,7 +5089,7 @@ F: drivers/mmc/host/sdhci.*
SECURE DIGITAL HOST CONTROLLER INTERFACE, OPEN FIRMWARE BINDINGS (SDHCI-OF)
M: Anton Vorontsov <avorontsov@ru.mvista.com>
L: linuxppc-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
L: linux-mmc@vger.kernel.org
S: Maintained
F: drivers/mmc/host/sdhci-of.*
@ -5250,6 +5300,20 @@ M: Nicolas Pitre <nico@fluxnic.net>
S: Odd Fixes
F: drivers/net/smc91x.*
SMM665 HARDWARE MONITOR DRIVER
M: Guenter Roeck <linux@roeck-us.net>
L: lm-sensors@lm-sensors.org
S: Maintained
F: Documentation/hwmon/smm665
F: drivers/hwmon/smm665.c
SMSC EMC2103 HARDWARE MONITOR DRIVER
M: Steve Glendinning <steve.glendinning@smsc.com>
L: lm-sensors@lm-sensors.org
S: Supported
F: Documentation/hwmon/emc2103
F: drivers/hwmon/emc2103.c
SMSC47B397 HARDWARE MONITOR DRIVER
M: "Mark M. Hoffman" <mhoffman@lightlink.com>
L: lm-sensors@lm-sensors.org
@ -5270,11 +5334,6 @@ L: netdev@vger.kernel.org
S: Supported
F: drivers/net/smsc9420.*
SMX UIO Interface
M: Ben Nizette <bn@niasdigital.com>
S: Maintained
F: drivers/uio/uio_smx.c
SN-IA64 (Itanium) SUB-PLATFORM
M: Jes Sorensen <jes@sgi.com>
L: linux-altix@sgi.com
@ -5362,7 +5421,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6.git
S: Maintained
F: arch/sparc/
F: drivers/sbus
F: drivers/sbus/
SPARC SERIAL DRIVERS
M: "David S. Miller" <davem@davemloft.net>
@ -5404,7 +5463,8 @@ S: Maintained
F: arch/arm/mach-spear*/clock.c
F: arch/arm/mach-spear*/include/mach/clkdev.h
F: arch/arm/plat-spear/clock.c
F: arch/arm/plat-spear/include/plat/clock.h and clkdev.h
F: arch/arm/plat-spear/include/plat/clkdev.h
F: arch/arm/plat-spear/include/plat/clock.h
SPEAR PAD MULTIPLEXING SUPPORT
M: Viresh Kumar <viresh.kumar@st.com>
@ -5446,8 +5506,8 @@ F: drivers/net/spider_net*
SPU FILE SYSTEM
M: Jeremy Kerr <jk@ozlabs.org>
L: linuxppc-dev@ozlabs.org
L: cbe-oss-dev@ozlabs.org
L: linuxppc-dev@lists.ozlabs.org
L: cbe-oss-dev@lists.ozlabs.org
W: http://www.ibm.com/developerworks/power/cell/
S: Supported
F: Documentation/filesystems/spufs.txt
@ -5484,11 +5544,6 @@ M: Ion Badulescu <ionut@badula.org>
S: Odd Fixes
F: drivers/net/starfire*
STARMODE RADIO IP (STRIP) PROTOCOL DRIVER
S: Orphan
F: drivers/staging/strip/strip.c
F: include/linux/if_strip.h
STRADIS MPEG-2 DECODER DRIVER
M: Nathan Laredo <laredo@gnu.org>
W: http://www.stradis.com/
@ -5564,6 +5619,15 @@ W: http://tcp-lp-mod.sourceforge.net/
S: Maintained
F: net/ipv4/tcp_lp.c
TEGRA SUPPORT
M: Colin Cross <ccross@android.com>
M: Erik Gilling <konkers@android.com>
M: Olof Johansson <olof@lixom.net>
L: linux-tegra@vger.kernel.org
T: git git://android.git.kernel.org/kernel/tegra.git
S: Supported
F: arch/arm/mach-tegra
TEHUTI ETHERNET DRIVER
M: Alexander Indenbaum <baum@tehutinetworks.net>
M: Andy Gospodarek <andy@greyhouse.net>
@ -5616,6 +5680,12 @@ F: include/linux/tipc*.h
F: include/net/tipc/
F: net/tipc/
TILE ARCHITECTURE
M: Chris Metcalf <cmetcalf@tilera.com>
W: http://www.tilera.com/scm/
S: Supported
F: arch/tile/
TLAN NETWORK DRIVER
M: Samuel Chessman <chessman@tux.org>
L: tlan-devel@lists.sourceforge.net (subscribers-only)
@ -5680,7 +5750,7 @@ TRACING
M: Steven Rostedt <rostedt@goodmis.org>
M: Frederic Weisbecker <fweisbec@gmail.com>
M: Ingo Molnar <mingo@redhat.com>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git tracing/core
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git perf/core
S: Maintained
F: Documentation/trace/ftrace.txt
F: arch/*/*/*/ftrace.h
@ -5753,6 +5823,9 @@ UCLINUX FOR RENESAS H8/300 (H8300)
M: Yoshinori Sato <ysato@users.sourceforge.jp>
W: http://uclinux-h8.sourceforge.jp/
S: Supported
F: arch/h8300/
F: drivers/ide/ide-h8300.c
F: drivers/net/ne-h8300.c
UDF FILESYSTEM
M: Jan Kara <jack@suse.cz>
@ -6044,7 +6117,7 @@ F: drivers/net/usb/usbnet.c
F: include/linux/usb/usbnet.h
USB VIDEO CLASS
M: Laurent Pinchart <laurent.pinchart@skynet.be>
M: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
L: linux-uvc-devel@lists.berlios.de (subscribers-only)
L: linux-media@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
@ -6177,9 +6250,12 @@ F: drivers/mmc/host/via-sdmmc.c
VIA UNICHROME(PRO)/CHROME9 FRAMEBUFFER DRIVER
M: Joseph Chan <JosephChan@via.com.tw>
M: Scott Fang <ScottFang@viatech.com.cn>
M: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
L: linux-fbdev@vger.kernel.org
S: Maintained
F: include/linux/via-core.h
F: include/linux/via-gpio.h
F: include/linux/via_i2c.h
F: drivers/video/via/
VIA VELOCITY NETWORK DRIVER
@ -6293,6 +6369,11 @@ M: linux-wimax@intel.com
L: wimax@linuxwimax.org
S: Supported
W: http://linuxwimax.org
F: Documentation/wimax/README.wimax
F: include/linux/wimax.h
F: include/linux/wimax/debug.h
F: include/net/wimax.h
F: net/wimax/
WIMEDIA LLC PROTOCOL (WLP) SUBSYSTEM
M: David Vrabel <david.vrabel@csr.com>
@ -6342,8 +6423,9 @@ S: Supported
F: drivers/input/touchscreen/*wm97*
F: include/linux/wm97xx.h
WOLFSON MICROELECTRONICS PMIC DRIVERS
WOLFSON MICROELECTRONICS DRIVERS
M: Mark Brown <broonie@opensource.wolfsonmicro.com>
M: Ian Lartey <ian@opensource.wolfsonmicro.com>
T: git git://opensource.wolfsonmicro.com/linux-2.6-audioplus
W: http://opensource.wolfsonmicro.com/node/8
S: Supported
@ -6358,8 +6440,8 @@ F: drivers/watchdog/wm83*_wdt.c
F: include/linux/mfd/wm831x/
F: include/linux/mfd/wm8350/
F: include/linux/mfd/wm8400*
F: sound/soc/codecs/wm8350.*
F: sound/soc/codecs/wm8400.*
F: include/sound/wm????.h
F: sound/soc/codecs/wm*
X.25 NETWORK LAYER
M: Andrew Hendry <andrew.hendry@gmail.com>

46
Makefile
View file

@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 35
EXTRAVERSION =
SUBLEVEL = 36
EXTRAVERSION = -rc3
NAME = Sheep on Meth
# *DOCUMENTATION*
@ -189,7 +189,6 @@ SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
export KBUILD_BUILDHOST := $(SUBARCH)
ARCH ?= $(SUBARCH)
CROSS_COMPILE ?=
CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%)
# Architecture as present in compile.h
@ -332,10 +331,9 @@ CHECK = sparse
CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
-Wbitwise -Wno-return-void $(CF)
MODFLAGS = -DMODULE
CFLAGS_MODULE = $(MODFLAGS)
AFLAGS_MODULE = $(MODFLAGS)
LDFLAGS_MODULE = -T $(srctree)/scripts/module-common.lds
CFLAGS_MODULE =
AFLAGS_MODULE =
LDFLAGS_MODULE =
CFLAGS_KERNEL =
AFLAGS_KERNEL =
CFLAGS_GCOV = -fprofile-arcs -ftest-coverage
@ -354,7 +352,12 @@ KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-Werror-implicit-function-declaration \
-Wno-format-security \
-fno-delete-null-pointer-checks
KBUILD_AFLAGS_KERNEL :=
KBUILD_CFLAGS_KERNEL :=
KBUILD_AFLAGS := -D__ASSEMBLY__
KBUILD_AFLAGS_MODULE := -DMODULE
KBUILD_CFLAGS_MODULE := -DMODULE
KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
# Read KERNELRELEASE from include/config/kernel.release (if it exists)
KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
@ -369,6 +372,8 @@ export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV
export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
# When compiling out-of-tree modules, put MODVERDIR in the module
# tree rather than in the kernel tree. The kernel tree might
@ -412,9 +417,9 @@ endif
# of make so .config is not included in this case either (for *config).
no-dot-config-targets := clean mrproper distclean \
cscope TAGS tags help %docs check% \
cscope TAGS tags help %docs check% coccicheck \
include/linux/version.h headers_% \
kernelrelease kernelversion
kernelversion %src-pkg
config-targets := 0
mixed-targets := 0
@ -526,7 +531,7 @@ endif # $(dot-config)
# The all: target is the default when no target is given on the
# command line.
# This allow a user to issue only 'make' to build a kernel including modules
# Defaults vmlinux but it is usually overridden in the arch makefile
# Defaults to vmlinux, but the arch makefile usually adds further targets
all: vmlinux
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
@ -557,6 +562,10 @@ KBUILD_CFLAGS += -g
KBUILD_AFLAGS += -gdwarf-2
endif
ifdef CONFIG_DEBUG_INFO_REDUCED
KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly)
endif
ifdef CONFIG_FUNCTION_TRACER
KBUILD_CFLAGS += -pg
endif
@ -603,7 +612,7 @@ endif
# Use --build-id when available.
LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
$(call cc-ldoption, -Wl$(comma)--build-id,))
LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
@ -1158,6 +1167,8 @@ distclean: mrproper
# rpm target kept for backward compatibility
package-dir := $(srctree)/scripts/package
%src-pkg: FORCE
$(Q)$(MAKE) $(build)=$(package-dir) $@
%pkg: include/config/kernel.release FORCE
$(Q)$(MAKE) $(build)=$(package-dir) $@
rpm: include/config/kernel.release FORCE
@ -1209,8 +1220,9 @@ help:
@echo ' includecheck - Check for duplicate included header files'
@echo ' export_report - List the usages of all exported symbols'
@echo ' headers_check - Sanity check on exported headers'
@echo ' headerdep - Detect inclusion cycles in headers'; \
echo ''
@echo ' headerdep - Detect inclusion cycles in headers'
@$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help
@echo ''
@echo 'Kernel packaging:'
@$(MAKE) $(build)=$(package-dir) help
@echo ''
@ -1369,6 +1381,9 @@ versioncheck:
-name '*.[hcS]' -type f -print | sort \
| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl
coccicheck:
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
namespacecheck:
$(PERL) $(srctree)/scripts/namespace.pl
@ -1394,8 +1409,8 @@ checkstack:
$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
kernelrelease:
$(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \
$(error kernelrelease not valid - run 'make prepare' to update it))
@echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
kernelversion:
@echo $(KERNELVERSION)
@ -1472,6 +1487,7 @@ cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \
$(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*)
a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \
$(KBUILD_AFLAGS_KERNEL) \
$(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \
$(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o)

7
arch/Kconfig
View file

@ -151,4 +151,11 @@ config HAVE_MIXED_BREAKPOINTS_REGS
config HAVE_USER_RETURN_NOTIFIER
bool
config HAVE_PERF_EVENTS_NMI
bool
help
System hardware can generate an NMI using the perf event
subsystem. Also has support for calculating CPU cycle events
to determine how many clock cycles in a given period.
source "kernel/gcov/Kconfig"

4
arch/alpha/Kconfig
View file

@ -47,10 +47,6 @@ config GENERIC_CALIBRATE_DELAY
bool
default y
config GENERIC_TIME
bool
default y
config GENERIC_CMOS_UPDATE
def_bool y

892
arch/alpha/defconfig
View file

@ -1,926 +1,76 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.9-rc2
# Sat Sep 25 15:38:35 2004
#
CONFIG_ALPHA=y
CONFIG_64BIT=y
CONFIG_MMU=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_ISA_DMA=y
# CONFIG_GENERIC_IOMAP is not set
#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y
#
# General setup
#
CONFIG_LOCALVERSION=""
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
# CONFIG_AUDIT is not set
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_HOTPLUG is not set
# CONFIG_IKCONFIG is not set
# CONFIG_EMBEDDED is not set
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SHMEM=y
# CONFIG_TINY_SHMEM is not set
#
# Loadable module support
#
CONFIG_KALLSYMS_ALL=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
CONFIG_OBSOLETE_MODPARM=y
# CONFIG_MODVERSIONS is not set
CONFIG_KMOD=y
#
# System setup
#
CONFIG_ALPHA_GENERIC=y
# CONFIG_ALPHA_ALCOR is not set
# CONFIG_ALPHA_XL is not set
# CONFIG_ALPHA_BOOK1 is not set
# CONFIG_ALPHA_AVANTI_CH is not set
# CONFIG_ALPHA_CABRIOLET is not set
# CONFIG_ALPHA_DP264 is not set
# CONFIG_ALPHA_EB164 is not set
# CONFIG_ALPHA_EB64P_CH is not set
# CONFIG_ALPHA_EB66 is not set
# CONFIG_ALPHA_EB66P is not set
# CONFIG_ALPHA_EIGER is not set
# CONFIG_ALPHA_JENSEN is not set
# CONFIG_ALPHA_LX164 is not set
# CONFIG_ALPHA_LYNX is not set
# CONFIG_ALPHA_MARVEL is not set
# CONFIG_ALPHA_MIATA is not set
# CONFIG_ALPHA_MIKASA is not set
# CONFIG_ALPHA_NAUTILUS is not set
# CONFIG_ALPHA_NONAME_CH is not set
# CONFIG_ALPHA_NORITAKE is not set
# CONFIG_ALPHA_PC164 is not set
# CONFIG_ALPHA_P2K is not set
# CONFIG_ALPHA_RAWHIDE is not set
# CONFIG_ALPHA_RUFFIAN is not set
# CONFIG_ALPHA_RX164 is not set
# CONFIG_ALPHA_SX164 is not set
# CONFIG_ALPHA_SABLE is not set
# CONFIG_ALPHA_SHARK is not set
# CONFIG_ALPHA_TAKARA is not set
# CONFIG_ALPHA_TITAN is not set
# CONFIG_ALPHA_WILDFIRE is not set
CONFIG_ISA=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_ALPHA_CORE_AGP=y
CONFIG_ALPHA_BROKEN_IRQ_MASK=y
CONFIG_EISA=y
# CONFIG_SMP is not set
# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
CONFIG_VERBOSE_MCHECK=y
CONFIG_VERBOSE_MCHECK_ON=1
CONFIG_PCI_LEGACY_PROC=y
CONFIG_PCI_NAMES=y
CONFIG_EISA_PCI_EISA=y
CONFIG_EISA_VIRTUAL_ROOT=y
CONFIG_EISA_NAMES=y
CONFIG_SRM_ENV=m
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_AOUT is not set
# CONFIG_BINFMT_EM86 is not set
# CONFIG_BINFMT_MISC is not set
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
# CONFIG_DEBUG_DRIVER is not set
#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set
#
# Parallel port support
#
# CONFIG_PARPORT is not set
#
# Plug and Play support
#
CONFIG_PNP=y
# CONFIG_PNP_DEBUG is not set
#
# Protocols
#
CONFIG_ISAPNP=y
#
# Block devices
#
CONFIG_BLK_DEV_FD=y
# CONFIG_BLK_DEV_XD is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
CONFIG_BLK_DEV_LOOP=m
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
#
# ATA/ATAPI/MFM/RLL support
#
CONFIG_IDE=y
CONFIG_IDE_MAX_HWIFS=4
CONFIG_BLK_DEV_IDE=y
#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_IDEDISK_MULTI_MODE=y
CONFIG_BLK_DEV_IDECD=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
# CONFIG_BLK_DEV_IDESCSI is not set
# CONFIG_IDE_TASK_IOCTL is not set
# CONFIG_IDE_TASKFILE_IO is not set
#
# IDE chipset support/bugfixes
#
CONFIG_IDE_GENERIC=y
# CONFIG_BLK_DEV_IDEPNP is not set
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_IDEPCI_SHARE_IRQ is not set
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
CONFIG_IDEDMA_PCI_AUTO=y
# CONFIG_IDEDMA_ONLYDISK is not set
# CONFIG_BLK_DEV_AEC62XX is not set
CONFIG_BLK_DEV_ALI15X3=y
# CONFIG_WDC_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
CONFIG_BLK_DEV_CMD64X=y
# CONFIG_BLK_DEV_TRIFLEX is not set
CONFIG_BLK_DEV_CY82C693=y
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_IDE_ARM is not set
# CONFIG_IDE_CHIPSETS is not set
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_IVB is not set
CONFIG_IDEDMA_AUTO=y
# CONFIG_BLK_DEV_HD is not set
#
# SCSI device support
#
CONFIG_SCSI=y
CONFIG_SCSI_PROC_FS=y
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
# CONFIG_CHR_DEV_SG is not set
#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
#
# SCSI Transport Attributes
#
# CONFIG_SCSI_SPI_ATTRS is not set
# CONFIG_SCSI_FC_ATTRS is not set
#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_CMDS_PER_DEVICE=253
CONFIG_AIC7XXX_RESET_DELAY_MS=5000
# CONFIG_AIC7XXX_PROBE_EISA_VL is not set
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
CONFIG_AIC7XXX_DEBUG_MASK=0
CONFIG_AIC7XXX_REG_PRETTY_PRINT=y
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_SCSI_SATA is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
CONFIG_SCSI_QLA2XXX=y
# CONFIG_SCSI_QLA21XX is not set
# CONFIG_SCSI_QLA22XX is not set
# CONFIG_SCSI_QLA2300 is not set
# CONFIG_SCSI_QLA2322 is not set
# CONFIG_SCSI_QLA6312 is not set
# CONFIG_SCSI_QLA6322 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_DEBUG is not set
#
# Old CD-ROM drivers (not SCSI, not IDE)
#
# CONFIG_CD_NO_IDESCSI 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
#
# CONFIG_IEEE1394 is not set
#
# I2O device support
#
# CONFIG_I2O is not set
#
# Networking support
#
CONFIG_NET=y
#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
CONFIG_NETLINK_DEV=y
CONFIG_UNIX=y
CONFIG_XFRM_USER=m
CONFIG_NET_KEY=m
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_TUNNEL is not set
#
# IP: Virtual Server Configuration
#
# CONFIG_IP_VS is not set
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
#
# IP: Netfilter Configuration
#
CONFIG_IP_NF_CONNTRACK=m
# CONFIG_IP_NF_CT_ACCT is not set
# CONFIG_IP_NF_CT_PROTO_SCTP is not set
CONFIG_IP_NF_FTP=m
CONFIG_IP_NF_IRC=m
# CONFIG_IP_NF_TFTP is not set
# CONFIG_IP_NF_AMANDA is not set
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
# CONFIG_IP_NF_MATCH_LIMIT is not set
# CONFIG_IP_NF_MATCH_IPRANGE is not set
# CONFIG_IP_NF_MATCH_MAC is not set
# CONFIG_IP_NF_MATCH_PKTTYPE is not set
# CONFIG_IP_NF_MATCH_MARK is not set
# CONFIG_IP_NF_MATCH_MULTIPORT is not set
# CONFIG_IP_NF_MATCH_TOS is not set
# CONFIG_IP_NF_MATCH_RECENT is not set
# CONFIG_IP_NF_MATCH_ECN is not set
# CONFIG_IP_NF_MATCH_DSCP is not set
# CONFIG_IP_NF_MATCH_AH_ESP is not set
# CONFIG_IP_NF_MATCH_LENGTH is not set
# CONFIG_IP_NF_MATCH_TTL is not set
# CONFIG_IP_NF_MATCH_TCPMSS is not set
# CONFIG_IP_NF_MATCH_HELPER is not set
# CONFIG_IP_NF_MATCH_STATE is not set
# CONFIG_IP_NF_MATCH_CONNTRACK is not set
# CONFIG_IP_NF_MATCH_OWNER is not set
# CONFIG_IP_NF_MATCH_ADDRTYPE is not set
# CONFIG_IP_NF_MATCH_REALM is not set
# CONFIG_IP_NF_MATCH_SCTP is not set
# CONFIG_IP_NF_MATCH_COMMENT is not set
CONFIG_IP_NF_FILTER=m
# CONFIG_IP_NF_TARGET_REJECT is not set
# CONFIG_IP_NF_TARGET_LOG is not set
# CONFIG_IP_NF_TARGET_ULOG is not set
# CONFIG_IP_NF_TARGET_TCPMSS is not set
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
# CONFIG_IP_NF_TARGET_REDIRECT is not set
# CONFIG_IP_NF_TARGET_NETMAP is not set
# CONFIG_IP_NF_TARGET_SAME is not set
# CONFIG_IP_NF_NAT_SNMP_BASIC is not set
CONFIG_IP_NF_NAT_IRC=m
CONFIG_IP_NF_NAT_FTP=m
# CONFIG_IP_NF_MANGLE is not set
# CONFIG_IP_NF_RAW is not set
# CONFIG_IP_NF_ARPTABLES is not set
CONFIG_IP_NF_COMPAT_IPCHAINS=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
#
# SCTP Configuration (EXPERIMENTAL)
#
# CONFIG_IP_SCTP is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
CONFIG_VLAN_8021Q=m
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_HW_FLOWCONTROL is not set
#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set
# CONFIG_NET_CLS_ROUTE is not set
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
CONFIG_PNP=y
CONFIG_ISAPNP=y
CONFIG_BLK_DEV_FD=y
CONFIG_BLK_DEV_LOOP=m
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_ALI15X3=y
CONFIG_BLK_DEV_CMD64X=y
CONFIG_BLK_DEV_CY82C693=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_CMDS_PER_DEVICE=253
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set
# CONFIG_NET_SB1000 is not set
#
# ARCnet devices
#
# CONFIG_ARCNET is not set
#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
CONFIG_NET_VENDOR_3COM=y
# CONFIG_EL1 is not set
# CONFIG_EL2 is not set
# CONFIG_ELPLUS is not set
# CONFIG_EL16 is not set
# CONFIG_EL3 is not set
# CONFIG_3C515 is not set
CONFIG_VORTEX=y
# CONFIG_TYPHOON is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
#
# Tulip family network device support
#
CONFIG_NET_TULIP=y
CONFIG_DE2104X=m
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
# CONFIG_TULIP_NAPI is not set
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_AC3200 is not set
# CONFIG_APRICOT is not set
# CONFIG_B44 is not set
# CONFIG_FORCEDETH is not set
# CONFIG_CS89x0 is not set
# CONFIG_DGRS is not set
# CONFIG_EEPRO100 is not set
# CONFIG_E100 is not set
# CONFIG_LNE390 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NE3210 is not set
# CONFIG_ES3210 is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_VELOCITY is not set
# CONFIG_NET_POCKET is not set
#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
CONFIG_YELLOWFIN=y
# CONFIG_R8169 is not set
# CONFIG_SK98LIN is not set
# CONFIG_TIGON3 is not set
#
# Ethernet (10000 Mbit)
#
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set
#
# Token Ring devices
#
# CONFIG_TR is not set
#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set
#
# Wan interfaces
#
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
# CONFIG_SHAPER is not set
# CONFIG_NETCONSOLE is not set
#
# ISDN subsystem
#
# CONFIG_ISDN is not set
#
# Telephony Support
#
# CONFIG_PHONE is not set
#
# Input device support
#
CONFIG_INPUT=y
#
# 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 I/O drivers
#
# CONFIG_GAMEPORT is not set
CONFIG_SOUND_GAMEPORT=y
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PCIPS2 is not set
# CONFIG_SERIO_RAW is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_INPORT is not set
# CONFIG_MOUSE_LOGIBM is not set
# CONFIG_MOUSE_PC110PAD is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_SERIAL_NONSTANDARD is not set
#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set
#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_RTC=y
# 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
#
# I2C support
#
# CONFIG_I2C is not set
#
# Dallas's 1-wire bus
#
# CONFIG_W1 is not set
#
# Misc devices
#
#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
#
# Digital Video Broadcasting Devices
#
# CONFIG_DVB is not set
#
# Graphics support
#
# CONFIG_FB is not set
#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
# CONFIG_MDA_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y
#
# Sound
#
# CONFIG_SOUND is not set
#
# USB support
#
# CONFIG_USB is not set
#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set
#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
CONFIG_REISERFS_FS=m
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_QUOTA is not set
CONFIG_AUTOFS_FS=m
# CONFIG_AUTOFS4_FS is not set
#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_SYSFS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVPTS_FS_XATTR is not set
CONFIG_TMPFS=y
# 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
#
# Network File Systems
#
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
# CONFIG_NFS_V4 is not set
# CONFIG_NFS_DIRECTIO is not set
CONFIG_NFSD=m
CONFIG_NFSD_V3=y
# CONFIG_NFSD_V4 is not set
CONFIG_NFSD_TCP=y
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=m
CONFIG_SUNRPC=m
# CONFIG_RPCSEC_GSS_KRB5 is not set
# CONFIG_RPCSEC_GSS_SPKM3 is not set
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_OSF_PARTITION=y
CONFIG_MSDOS_PARTITION=y
#
# Native Language Support
#
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set
#
# Profiling support
#
# CONFIG_PROFILING is not set
#
# Kernel hacking
#
CONFIG_DEBUG_KERNEL=y
CONFIG_MAGIC_SYSRQ=y
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_SPINLOCK is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_INFO=y
CONFIG_EARLY_PRINTK=y
# CONFIG_DEBUG_SEMAPHORE is not set
CONFIG_ALPHA_LEGACY_START_ADDRESS=y
CONFIG_MATHEMU=y
#
# Security options
#
# CONFIG_SECURITY is not set
#
# Cryptographic options
#
CONFIG_CRYPTO=y
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=m
CONFIG_CRYPTO_SHA1=m
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_WHIRLPOOL is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_AES is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_TEST is not set
#
# Library routines
#
# CONFIG_CRC_CCITT is not set
CONFIG_CRC32=y
# CONFIG_LIBCRC32C is not set

11
arch/alpha/include/asm/Kbuild
View file

@ -1,11 +1,10 @@
include include/asm-generic/Kbuild.asm
header-y += compiler.h
header-y += console.h
header-y += fpu.h
header-y += gentrap.h
header-y += regdef.h
header-y += pal.h
header-y += reg.h
unifdef-y += console.h
unifdef-y += fpu.h
unifdef-y += sysinfo.h
unifdef-y += compiler.h
header-y += regdef.h
header-y += sysinfo.h

1
arch/alpha/include/asm/cache.h
View file

@ -17,7 +17,6 @@
# define L1_CACHE_SHIFT 5
#endif
#define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))
#define SMP_CACHE_BYTES L1_CACHE_BYTES
#endif

2
arch/alpha/include/asm/dma-mapping.h
View file

@ -41,9 +41,7 @@ static inline int dma_set_mask(struct device *dev, u64 mask)
#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
#define dma_is_consistent(d, h) (1)
#define dma_cache_sync(dev, va, size, dir) ((void)0)
#define dma_get_cache_alignment() L1_CACHE_BYTES
#endif /* _ALPHA_DMA_MAPPING_H */

1
arch/alpha/include/asm/hw_irq.h
View file

@ -3,6 +3,7 @@
extern volatile unsigned long irq_err_count;
DECLARE_PER_CPU(unsigned long, irq_pmi_count);
#ifdef CONFIG_ALPHA_GENERIC
#define ACTUAL_NR_IRQS alpha_mv.nr_irqs

4
arch/alpha/include/asm/ioctls.h
View file

@ -80,6 +80,7 @@
# define TIOCPKT_START 8
# define TIOCPKT_NOSTOP 16
# define TIOCPKT_DOSTOP 32
# define TIOCPKT_IOCTL 64
#define TIOCNOTTY 0x5422
@ -91,6 +92,7 @@
#define TIOCGSID 0x5429 /* Return the session ID of FD */
#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
#define TIOCSIG _IOW('T',0x36, int) /* Generate signal on Pty slave */
#define TIOCSERCONFIG 0x5453
#define TIOCSERGWILD 0x5454
@ -106,7 +108,5 @@
#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */
#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */
#define TIOCGHAYESESP 0x545E /* Get Hayes ESP configuration */
#define TIOCSHAYESESP 0x545F /* Set Hayes ESP configuration */
#endif /* _ASM_ALPHA_IOCTLS_H */

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