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

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Paul Mundt 2011-05-24 12:05:26 +09:00
commit 8b1aaeaf54
5224 changed files with 323121 additions and 324763 deletions
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2
CREDITS
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@ -328,7 +328,7 @@ S: Haifa, Israel
N: Johannes Berg
E: johannes@sipsolutions.net
W: http://johannes.sipsolutions.net/
P: 1024D/9AB78CA5 AD02 0176 4E29 C137 1DF6 08D2 FC44 CF86 9AB7 8CA5
P: 4096R/7BF9099A C0EB C440 F6DA 091C 884D 8532 E0F3 73F3 7BF9 099A
D: powerpc & 802.11 hacker
N: Stephen R. van den Berg (AKA BuGless)

2
Documentation/00-INDEX
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@ -328,8 +328,6 @@ sysrq.txt
- info on the magic SysRq key.
telephony/
- directory with info on telephony (e.g. voice over IP) support.
uml/
- directory with information about User Mode Linux.
unicode.txt
- info on the Unicode character/font mapping used in Linux.
unshare.txt

10
Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus Normal file
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@ -0,0 +1,10 @@
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/startup_profile
Date: October 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: The integer value of this attribute ranges from 0-4.
When read, this attribute returns the number of the actual
profile. This value is persistent, so its equivalent to the
profile that's active when the mouse is powered on next time.
When written, this file sets the number of the startup profile
and the mouse activates this profile immediately.
Please use actual_profile, it does the same thing.

31
Documentation/ABI/testing/sysfs-bus-bcma Normal file
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@ -0,0 +1,31 @@
What: /sys/bus/bcma/devices/.../manuf
Date: May 2011
KernelVersion: 2.6.40
Contact: Rafał Miłecki <zajec5@gmail.com>
Description:
Each BCMA core has it's manufacturer id. See
include/linux/bcma/bcma.h for possible values.
What: /sys/bus/bcma/devices/.../id
Date: May 2011
KernelVersion: 2.6.40
Contact: Rafał Miłecki <zajec5@gmail.com>
Description:
There are a few types of BCMA cores, they can be identified by
id field.
What: /sys/bus/bcma/devices/.../rev
Date: May 2011
KernelVersion: 2.6.40
Contact: Rafał Miłecki <zajec5@gmail.com>
Description:
BCMA cores of the same type can still slightly differ depending
on their revision. Use it for detailed programming.
What: /sys/bus/bcma/devices/.../class
Date: May 2011
KernelVersion: 2.6.40
Contact: Rafał Miłecki <zajec5@gmail.com>
Description:
Each BCMA core is identified by few fields, including class it
belongs to. See include/linux/bcma/bcma.h for possible values.

9
Documentation/ABI/testing/sysfs-bus-pci
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@ -74,6 +74,15 @@ Description:
hot-remove the PCI device and any of its children.
Depends on CONFIG_HOTPLUG.
What: /sys/bus/pci/devices/.../pci_bus/.../rescan
Date: May 2011
Contact: Linux PCI developers <linux-pci@vger.kernel.org>
Description:
Writing a non-zero value to this attribute will
force a rescan of the bus and all child buses,
and re-discover devices removed earlier from this
part of the device tree. Depends on CONFIG_HOTPLUG.
What: /sys/bus/pci/devices/.../rescan
Date: January 2009
Contact: Linux PCI developers <linux-pci@vger.kernel.org>

32
Documentation/ABI/testing/sysfs-devices-system-cpu
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@ -183,21 +183,21 @@ Description: Discover and change clock speed of CPUs
to learn how to control the knobs.
What: /sys/devices/system/cpu/cpu*/cache/index*/cache_disable_X
Date: August 2008
What: /sys/devices/system/cpu/cpu*/cache/index3/cache_disable_{0,1}
Date: August 2008
KernelVersion: 2.6.27
Contact: mark.langsdorf@amd.com
Description: These files exist in every cpu's cache index directories.
There are currently 2 cache_disable_# files in each
directory. Reading from these files on a supported
processor will return that cache disable index value
for that processor and node. Writing to one of these
files will cause the specificed cache index to be disabled.
Contact: discuss@x86-64.org
Description: Disable L3 cache indices
Currently, only AMD Family 10h Processors support cache index
disable, and only for their L3 caches. See the BIOS and
Kernel Developer's Guide at
http://support.amd.com/us/Embedded_TechDocs/31116-Public-GH-BKDG_3-28_5-28-09.pdf
for formatting information and other details on the
cache index disable.
Users: joachim.deguara@amd.com
These files exist in every CPU's cache/index3 directory. Each
cache_disable_{0,1} file corresponds to one disable slot which
can be used to disable a cache index. Reading from these files
on a processor with this functionality will return the currently
disabled index for that node. There is one L3 structure per
node, or per internal node on MCM machines. Writing a valid
index to one of these files will cause the specificed cache
index to be disabled.
All AMD processors with L3 caches provide this functionality.
For details, see BKDGs at
http://developer.amd.com/documentation/guides/Pages/default.aspx

19
Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
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@ -1,9 +1,12 @@
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/actual_profile
Date: October 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: When read, this file returns the number of the actual profile in
range 0-4.
This file is readonly.
Description: The integer value of this attribute ranges from 0-4.
When read, this attribute returns the number of the actual
profile. This value is persistent, so its equivalent to the
profile that's active when the mouse is powered on next time.
When written, this file sets the number of the startup profile
and the mouse activates this profile immediately.
Users: http://roccat.sourceforge.net
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/firmware_version
@ -89,16 +92,6 @@ Description: The mouse has a tracking- and a distance-control-unit. These
This file is writeonly.
Users: http://roccat.sourceforge.net
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/startup_profile
Date: October 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: The integer value of this attribute ranges from 0-4.
When read, this attribute returns the number of the profile
that's active when the mouse is powered on.
When written, this file sets the number of the startup profile
and the mouse activates this profile immediately.
Users: http://roccat.sourceforge.net
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/tcu
Date: October 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>

18
Documentation/ABI/testing/sysfs-firmware-dmi
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@ -14,14 +14,15 @@ Description:
DMI is structured as a large table of entries, where
each entry has a common header indicating the type and
length of the entry, as well as 'handle' that is
supposed to be unique amongst all entries.
length of the entry, as well as a firmware-provided
'handle' that is supposed to be unique amongst all
entries.
Some entries are required by the specification, but many
others are optional. In general though, users should
never expect to find a specific entry type on their
system unless they know for certain what their firmware
is doing. Machine to machine will vary.
is doing. Machine to machine experiences will vary.
Multiple entries of the same type are allowed. In order
to handle these duplicate entry types, each entry is
@ -67,25 +68,24 @@ Description:
and the two terminating nul characters.
type : The type of the entry. This value is the same
as found in the directory name. It indicates
how the rest of the entry should be
interpreted.
how the rest of the entry should be interpreted.
instance: The instance ordinal of the entry for the
given type. This value is the same as found
in the parent directory name.
position: The position of the entry within the entirety
of the entirety.
position: The ordinal position (zero-based) of the entry
within the entirety of the DMI entry table.
=== Entry Specialization ===
Some entry types may have other information available in
sysfs.
sysfs. Not all types are specialized.
--- Type 15 - System Event Log ---
This entry allows the firmware to export a log of
events the system has taken. This information is
typically backed by nvram, but the implementation
details are abstracted by this table. This entries data
details are abstracted by this table. This entry's data
is exported in the directory:
/sys/firmware/dmi/entries/15-0/system_event_log

58
Documentation/ABI/testing/sysfs-firmware-gsmi Normal file
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@ -0,0 +1,58 @@
What: /sys/firmware/gsmi
Date: March 2011
Contact: Mike Waychison <mikew@google.com>
Description:
Some servers used internally at Google have firmware
that provides callback functionality via explicit SMI
triggers. Some of the callbacks are similar to those
provided by the EFI runtime services page, but due to
historical reasons this different entry-point has been
used.
The gsmi driver implements the kernel's abstraction for
these firmware callbacks. Currently, this functionality
is limited to handling the system event log and getting
access to EFI-style variables stored in nvram.
Layout:
/sys/firmware/gsmi/vars:
This directory has the same layout (and
underlying implementation as /sys/firmware/efi/vars.
See Documentation/ABI/*/sysfs-firmware-efi-vars
for more information on how to interact with
this structure.
/sys/firmware/gsmi/append_to_eventlog - write-only:
This file takes a binary blob and passes it onto
the firmware to be timestamped and appended to
the system eventlog. The binary format is
interpreted by the firmware and may change from
platform to platform. The only kernel-enforced
requirement is that the blob be prefixed with a
32bit host-endian type used as part of the
firmware call.
/sys/firmware/gsmi/clear_config - write-only:
Writing any value to this file will cause the
entire firmware configuration to be reset to
"factory defaults". Callers should assume that
a reboot is required for the configuration to be
cleared.
/sys/firmware/gsmi/clear_eventlog - write-only:
This file is used to clear out a portion/the
whole of the system event log. Values written
should be values between 1 and 100 inclusive (in
ASCII) representing the fraction of the log to
clear. Not all platforms support fractional
clearing though, and this writes to this file
will error out if the firmware doesn't like your
submitted fraction.
Callers should assume that a reboot is needed
for this operation to complete.

7
Documentation/ABI/testing/sysfs-firmware-log Normal file
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@ -0,0 +1,7 @@
What: /sys/firmware/log
Date: February 2011
Contact: Mike Waychison <mikew@google.com>
Description:
The /sys/firmware/log is a binary file that represents a
read-only copy of the firmware's log if one is
available.

8
Documentation/ABI/testing/sysfs-kernel-fscaps Normal file
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@ -0,0 +1,8 @@
What: /sys/kernel/fscaps
Date: February 2011
KernelVersion: 2.6.38
Contact: Ludwig Nussel <ludwig.nussel@suse.de>
Description
Shows whether file system capabilities are honored
when executing a binary

14
Documentation/ABI/testing/sysfs-power
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@ -158,3 +158,17 @@ Description:
successful, will make the kernel abort a subsequent transition
to a sleep state if any wakeup events are reported after the
write has returned.
What: /sys/power/reserved_size
Date: May 2011
Contact: Rafael J. Wysocki <rjw@sisk.pl>
Description:
The /sys/power/reserved_size file allows user space to control
the amount of memory reserved for allocations made by device
drivers during the "device freeze" stage of hibernation. It can
be written a string representing a non-negative integer that
will be used as the amount of memory to reserve for allocations
made by device drivers' "freeze" callbacks, in bytes.
Reading from this file will display the current value, which is
set to 1 MB by default.

6
Documentation/DocBook/device-drivers.tmpl
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@ -96,10 +96,10 @@ X!Iinclude/linux/kobject.h
<chapter id="devdrivers">
<title>Device drivers infrastructure</title>
<sect1><title>The Basic Device Driver-Model Structures </title>
!Iinclude/linux/device.h
</sect1>
<sect1><title>Device Drivers Base</title>
<!--
X!Iinclude/linux/device.h
-->
!Edrivers/base/driver.c
!Edrivers/base/core.c
!Edrivers/base/class.c

82
Documentation/DocBook/genericirq.tmpl
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@ -191,8 +191,8 @@
<para>
Whenever an interrupt triggers, the lowlevel arch code calls into
the generic interrupt code by calling desc->handle_irq().
This highlevel IRQ handling function only uses desc->chip primitives
referenced by the assigned chip descriptor structure.
This highlevel IRQ handling function only uses desc->irq_data.chip
primitives referenced by the assigned chip descriptor structure.
</para>
</sect1>
<sect1 id="Highlevel_Driver_API">
@ -206,11 +206,11 @@
<listitem><para>enable_irq()</para></listitem>
<listitem><para>disable_irq_nosync() (SMP only)</para></listitem>
<listitem><para>synchronize_irq() (SMP only)</para></listitem>
<listitem><para>set_irq_type()</para></listitem>
<listitem><para>set_irq_wake()</para></listitem>
<listitem><para>set_irq_data()</para></listitem>
<listitem><para>set_irq_chip()</para></listitem>
<listitem><para>set_irq_chip_data()</para></listitem>
<listitem><para>irq_set_irq_type()</para></listitem>
<listitem><para>irq_set_irq_wake()</para></listitem>
<listitem><para>irq_set_handler_data()</para></listitem>
<listitem><para>irq_set_chip()</para></listitem>
<listitem><para>irq_set_chip_data()</para></listitem>
</itemizedlist>
See the autogenerated function documentation for details.
</para>
@ -225,6 +225,8 @@
<listitem><para>handle_fasteoi_irq</para></listitem>
<listitem><para>handle_simple_irq</para></listitem>
<listitem><para>handle_percpu_irq</para></listitem>
<listitem><para>handle_edge_eoi_irq</para></listitem>
<listitem><para>handle_bad_irq</para></listitem>
</itemizedlist>
The interrupt flow handlers (either predefined or architecture
specific) are assigned to specific interrupts by the architecture
@ -241,13 +243,13 @@
<programlisting>
default_enable(struct irq_data *data)
{
desc->chip->irq_unmask(data);
desc->irq_data.chip->irq_unmask(data);
}
default_disable(struct irq_data *data)
{
if (!delay_disable(data))
desc->chip->irq_mask(data);
desc->irq_data.chip->irq_mask(data);
}
default_ack(struct irq_data *data)
@ -284,9 +286,9 @@ noop(struct irq_data *data))
<para>
The following control flow is implemented (simplified excerpt):
<programlisting>
desc->chip->irq_mask();
handle_IRQ_event(desc->action);
desc->chip->irq_unmask();
desc->irq_data.chip->irq_mask_ack();
handle_irq_event(desc->action);
desc->irq_data.chip->irq_unmask();
</programlisting>
</para>
</sect3>
@ -300,8 +302,8 @@ desc->chip->irq_unmask();
<para>
The following control flow is implemented (simplified excerpt):
<programlisting>
handle_IRQ_event(desc->action);
desc->chip->irq_eoi();
handle_irq_event(desc->action);
desc->irq_data.chip->irq_eoi();
</programlisting>
</para>
</sect3>
@ -315,17 +317,17 @@ desc->chip->irq_eoi();
The following control flow is implemented (simplified excerpt):
<programlisting>
if (desc->status &amp; running) {
desc->chip->irq_mask();
desc->irq_data.chip->irq_mask_ack();
desc->status |= pending | masked;
return;
}
desc->chip->irq_ack();
desc->irq_data.chip->irq_ack();
desc->status |= running;
do {
if (desc->status &amp; masked)
desc->chip->irq_unmask();
desc->irq_data.chip->irq_unmask();
desc->status &amp;= ~pending;
handle_IRQ_event(desc->action);
handle_irq_event(desc->action);
} while (status &amp; pending);
desc->status &amp;= ~running;
</programlisting>
@ -344,7 +346,7 @@ desc->status &amp;= ~running;
<para>
The following control flow is implemented (simplified excerpt):
<programlisting>
handle_IRQ_event(desc->action);
handle_irq_event(desc->action);
</programlisting>
</para>
</sect3>
@ -362,12 +364,29 @@ handle_IRQ_event(desc->action);
<para>
The following control flow is implemented (simplified excerpt):
<programlisting>
handle_IRQ_event(desc->action);
if (desc->chip->irq_eoi)
desc->chip->irq_eoi();
if (desc->irq_data.chip->irq_ack)
desc->irq_data.chip->irq_ack();
handle_irq_event(desc->action);
if (desc->irq_data.chip->irq_eoi)
desc->irq_data.chip->irq_eoi();
</programlisting>
</para>
</sect3>
<sect3 id="EOI_Edge_IRQ_flow_handler">
<title>EOI Edge IRQ flow handler</title>
<para>
handle_edge_eoi_irq provides an abnomination of the edge
handler which is solely used to tame a badly wreckaged
irq controller on powerpc/cell.
</para>
</sect3>
<sect3 id="BAD_IRQ_flow_handler">
<title>Bad IRQ flow handler</title>
<para>
handle_bad_irq is used for spurious interrupts which
have no real handler assigned..
</para>
</sect3>
</sect2>
<sect2 id="Quirks_and_optimizations">
<title>Quirks and optimizations</title>
@ -410,6 +429,7 @@ if (desc->chip->irq_eoi)
<listitem><para>irq_mask_ack() - Optional, recommended for performance</para></listitem>
<listitem><para>irq_mask()</para></listitem>
<listitem><para>irq_unmask()</para></listitem>
<listitem><para>irq_eoi() - Optional, required for eoi flow handlers</para></listitem>
<listitem><para>irq_retrigger() - Optional</para></listitem>
<listitem><para>irq_set_type() - Optional</para></listitem>
<listitem><para>irq_set_wake() - Optional</para></listitem>
@ -424,32 +444,24 @@ if (desc->chip->irq_eoi)
<chapter id="doirq">
<title>__do_IRQ entry point</title>
<para>
The original implementation __do_IRQ() is an alternative entry
point for all types of interrupts.
The original implementation __do_IRQ() was an alternative entry
point for all types of interrupts. It not longer exists.
</para>
<para>
This handler turned out to be not suitable for all
interrupt hardware and was therefore reimplemented with split
functionality for egde/level/simple/percpu interrupts. This is not
functionality for edge/level/simple/percpu interrupts. This is not
only a functional optimization. It also shortens code paths for
interrupts.
</para>
<para>
To make use of the split implementation, replace the call to
__do_IRQ by a call to desc->handle_irq() and associate
the appropriate handler function to desc->handle_irq().
In most cases the generic handler implementations should
be sufficient.
</para>
</chapter>
<chapter id="locking">
<title>Locking on SMP</title>
<para>
The locking of chip registers is up to the architecture that
defines the chip primitives. There is a chip->lock field that can be used
for serialization, but the generic layer does not touch it. The per-irq
structure is protected via desc->lock, by the generic layer.
defines the chip primitives. The per-irq structure is
protected via desc->lock, by the generic layer.
</para>
</chapter>
<chapter id="structs">

1
Documentation/DocBook/media-entities.tmpl
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@ -294,6 +294,7 @@
<!ENTITY sub-srggb10 SYSTEM "v4l/pixfmt-srggb10.xml">
<!ENTITY sub-srggb8 SYSTEM "v4l/pixfmt-srggb8.xml">
<!ENTITY sub-y10 SYSTEM "v4l/pixfmt-y10.xml">
<!ENTITY sub-y12 SYSTEM "v4l/pixfmt-y12.xml">
<!ENTITY sub-pixfmt SYSTEM "v4l/pixfmt.xml">
<!ENTITY sub-cropcap SYSTEM "v4l/vidioc-cropcap.xml">
<!ENTITY sub-dbg-g-register SYSTEM "v4l/vidioc-dbg-g-register.xml">

2
Documentation/DocBook/v4l/media-ioc-setup-link.xml
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@ -34,7 +34,7 @@
<varlistentry>
<term><parameter>request</parameter></term>
<listitem>
<para>MEDIA_IOC_ENUM_LINKS</para>
<para>MEDIA_IOC_SETUP_LINK</para>
</listitem>
</varlistentry>
<varlistentry>

79
Documentation/DocBook/v4l/pixfmt-y12.xml Normal file
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@ -0,0 +1,79 @@
<refentry id="V4L2-PIX-FMT-Y12">
<refmeta>
<refentrytitle>V4L2_PIX_FMT_Y12 ('Y12 ')</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
<refname><constant>V4L2_PIX_FMT_Y12</constant></refname>
<refpurpose>Grey-scale image</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<para>This is a grey-scale image with a depth of 12 bits per pixel. Pixels
are stored in 16-bit words with unused high bits padded with 0. The least
significant byte is stored at lower memory addresses (little-endian).</para>
<example>
<title><constant>V4L2_PIX_FMT_Y12</constant> 4 &times; 4
pixel image</title>
<formalpara>
<title>Byte Order.</title>
<para>Each cell is one byte.
<informaltable frame="none">
<tgroup cols="9" align="center">
<colspec align="left" colwidth="2*" />
<tbody valign="top">
<row>
<entry>start&nbsp;+&nbsp;0:</entry>
<entry>Y'<subscript>00low</subscript></entry>
<entry>Y'<subscript>00high</subscript></entry>
<entry>Y'<subscript>01low</subscript></entry>
<entry>Y'<subscript>01high</subscript></entry>
<entry>Y'<subscript>02low</subscript></entry>
<entry>Y'<subscript>02high</subscript></entry>
<entry>Y'<subscript>03low</subscript></entry>
<entry>Y'<subscript>03high</subscript></entry>
</row>
<row>
<entry>start&nbsp;+&nbsp;8:</entry>
<entry>Y'<subscript>10low</subscript></entry>
<entry>Y'<subscript>10high</subscript></entry>
<entry>Y'<subscript>11low</subscript></entry>
<entry>Y'<subscript>11high</subscript></entry>
<entry>Y'<subscript>12low</subscript></entry>
<entry>Y'<subscript>12high</subscript></entry>
<entry>Y'<subscript>13low</subscript></entry>
<entry>Y'<subscript>13high</subscript></entry>
</row>
<row>
<entry>start&nbsp;+&nbsp;16:</entry>
<entry>Y'<subscript>20low</subscript></entry>
<entry>Y'<subscript>20high</subscript></entry>
<entry>Y'<subscript>21low</subscript></entry>
<entry>Y'<subscript>21high</subscript></entry>
<entry>Y'<subscript>22low</subscript></entry>
<entry>Y'<subscript>22high</subscript></entry>
<entry>Y'<subscript>23low</subscript></entry>
<entry>Y'<subscript>23high</subscript></entry>
</row>
<row>
<entry>start&nbsp;+&nbsp;24:</entry>
<entry>Y'<subscript>30low</subscript></entry>
<entry>Y'<subscript>30high</subscript></entry>
<entry>Y'<subscript>31low</subscript></entry>
<entry>Y'<subscript>31high</subscript></entry>
<entry>Y'<subscript>32low</subscript></entry>
<entry>Y'<subscript>32high</subscript></entry>
<entry>Y'<subscript>33low</subscript></entry>
<entry>Y'<subscript>33high</subscript></entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</formalpara>
</example>
</refsect1>
</refentry>

1
Documentation/DocBook/v4l/pixfmt.xml
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@ -696,6 +696,7 @@ information.</para>
&sub-packed-yuv;
&sub-grey;
&sub-y10;
&sub-y12;
&sub-y16;
&sub-yuyv;
&sub-uyvy;

59
Documentation/DocBook/v4l/subdev-formats.xml
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@ -456,6 +456,23 @@
<entry>b<subscript>1</subscript></entry>
<entry>b<subscript>0</subscript></entry>
</row>
<row id="V4L2-MBUS-FMT-SGBRG8-1X8">
<entry>V4L2_MBUS_FMT_SGBRG8_1X8</entry>
<entry>0x3013</entry>
<entry></entry>
<entry>-</entry>
<entry>-</entry>
<entry>-</entry>
<entry>-</entry>
<entry>g<subscript>7</subscript></entry>
<entry>g<subscript>6</subscript></entry>
<entry>g<subscript>5</subscript></entry>
<entry>g<subscript>4</subscript></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>
</row>
<row id="V4L2-MBUS-FMT-SGRBG8-1X8">
<entry>V4L2_MBUS_FMT_SGRBG8_1X8</entry>
<entry>0x3002</entry>
@ -473,6 +490,23 @@
<entry>g<subscript>1</subscript></entry>
<entry>g<subscript>0</subscript></entry>
</row>
<row id="V4L2-MBUS-FMT-SRGGB8-1X8">
<entry>V4L2_MBUS_FMT_SRGGB8_1X8</entry>
<entry>0x3014</entry>
<entry></entry>
<entry>-</entry>
<entry>-</entry>
<entry>-</entry>
<entry>-</entry>
<entry>r<subscript>7</subscript></entry>
<entry>r<subscript>6</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>r<subscript>1</subscript></entry>
<entry>r<subscript>0</subscript></entry>
</row>
<row id="V4L2-MBUS-FMT-SBGGR10-DPCM8-1X8">
<entry>V4L2_MBUS_FMT_SBGGR10_DPCM8_1X8</entry>
<entry>0x300b</entry>
@ -2159,6 +2193,31 @@
<entry>u<subscript>1</subscript></entry>
<entry>u<subscript>0</subscript></entry>
</row>
<row id="V4L2-MBUS-FMT-Y12-1X12">
<entry>V4L2_MBUS_FMT_Y12_1X12</entry>
<entry>0x2013</entry>
<entry></entry>
<entry>-</entry>
<entry>-</entry>
<entry>-</entry>
<entry>-</entry>
<entry>-</entry>
<entry>-</entry>
<entry>-</entry>
<entry>-</entry>
<entry>y<subscript>11</subscript></entry>
<entry>y<subscript>10</subscript></entry>
<entry>y<subscript>9</subscript></entry>
<entry>y<subscript>8</subscript></entry>
<entry>y<subscript>7</subscript></entry>
<entry>y<subscript>6</subscript></entry>
<entry>y<subscript>5</subscript></entry>
<entry>y<subscript>4</subscript></entry>
<entry>y<subscript>3</subscript></entry>
<entry>y<subscript>2</subscript></entry>
<entry>y<subscript>1</subscript></entry>
<entry>y<subscript>0</subscript></entry>
</row>
<row id="V4L2-MBUS-FMT-UYVY8-1X16">
<entry>V4L2_MBUS_FMT_UYVY8_1X16</entry>
<entry>0x200f</entry>

2
Documentation/HOWTO
View File

@ -209,7 +209,7 @@ tools. One such tool that is particularly recommended is the Linux
Cross-Reference project, which is able to present source code in a
self-referential, indexed webpage format. An excellent up-to-date
repository of the kernel code may be found at:
http://users.sosdg.org/~qiyong/lxr/
http://lxr.linux.no/+trees
The development process

2
Documentation/RCU/00-INDEX
View File

@ -21,7 +21,7 @@ rcu.txt
RTFP.txt
- List of RCU papers (bibliography) going back to 1980.
stallwarn.txt
- RCU CPU stall warnings (CONFIG_RCU_CPU_STALL_DETECTOR)
- RCU CPU stall warnings (module parameter rcu_cpu_stall_suppress)
torture.txt
- RCU Torture Test Operation (CONFIG_RCU_TORTURE_TEST)
trace.txt

23
Documentation/RCU/stallwarn.txt
View File

@ -1,22 +1,25 @@
Using RCU's CPU Stall Detector
The CONFIG_RCU_CPU_STALL_DETECTOR kernel config parameter enables
RCU's CPU stall detector, which detects conditions that unduly delay
RCU grace periods. The stall detector's idea of what constitutes
"unduly delayed" is controlled by a set of C preprocessor macros:
The rcu_cpu_stall_suppress module parameter enables RCU's CPU stall
detector, which detects conditions that unduly delay RCU grace periods.
This module parameter enables CPU stall detection by default, but
may be overridden via boot-time parameter or at runtime via sysfs.
The stall detector's idea of what constitutes "unduly delayed" is
controlled by a set of kernel configuration variables and cpp macros:
RCU_SECONDS_TILL_STALL_CHECK
CONFIG_RCU_CPU_STALL_TIMEOUT
This macro defines the period of time that RCU will wait from
the beginning of a grace period until it issues an RCU CPU
stall warning. This time period is normally ten seconds.
This kernel configuration parameter defines the period of time
that RCU will wait from the beginning of a grace period until it
issues an RCU CPU stall warning. This time period is normally
ten seconds.
RCU_SECONDS_TILL_STALL_RECHECK
This macro defines the period of time that RCU will wait after
issuing a stall warning until it issues another stall warning
for the same stall. This time period is normally set to thirty
seconds.
for the same stall. This time period is normally set to three
times the check interval plus thirty seconds.
RCU_STALL_RAT_DELAY

278
Documentation/RCU/trace.txt
View File

@ -10,34 +10,46 @@ for rcutree and next for rcutiny.
CONFIG_TREE_RCU and CONFIG_TREE_PREEMPT_RCU debugfs Files and Formats
These implementations of RCU provides five debugfs files under the
top-level directory RCU: rcu/rcudata (which displays fields in struct
rcu_data), rcu/rcudata.csv (which is a .csv spreadsheet version of
rcu/rcudata), rcu/rcugp (which displays grace-period counters),
rcu/rcuhier (which displays the struct rcu_node hierarchy), and
rcu/rcu_pending (which displays counts of the reasons that the
rcu_pending() function decided that there was core RCU work to do).
These implementations of RCU provides several debugfs files under the
top-level directory "rcu":
rcu/rcudata:
Displays fields in struct rcu_data.
rcu/rcudata.csv:
Comma-separated values spreadsheet version of rcudata.
rcu/rcugp:
Displays grace-period counters.
rcu/rcuhier:
Displays the struct rcu_node hierarchy.
rcu/rcu_pending:
Displays counts of the reasons rcu_pending() decided that RCU had
work to do.
rcu/rcutorture:
Displays rcutorture test progress.
rcu/rcuboost:
Displays RCU boosting statistics. Only present if
CONFIG_RCU_BOOST=y.
The output of "cat rcu/rcudata" looks as follows:
rcu_sched:
0 c=17829 g=17829 pq=1 pqc=17829 qp=0 dt=10951/1 dn=0 df=1101 of=0 ri=36 ql=0 b=10
1 c=17829 g=17829 pq=1 pqc=17829 qp=0 dt=16117/1 dn=0 df=1015 of=0 ri=0 ql=0 b=10
2 c=17829 g=17829 pq=1 pqc=17829 qp=0 dt=1445/1 dn=0 df=1839 of=0 ri=0 ql=0 b=10
3 c=17829 g=17829 pq=1 pqc=17829 qp=0 dt=6681/1 dn=0 df=1545 of=0 ri=0 ql=0 b=10
4 c=17829 g=17829 pq=1 pqc=17829 qp=0 dt=1003/1 dn=0 df=1992 of=0 ri=0 ql=0 b=10
5 c=17829 g=17830 pq=1 pqc=17829 qp=1 dt=3887/1 dn=0 df=3331 of=0 ri=4 ql=2 b=10
6 c=17829 g=17829 pq=1 pqc=17829 qp=0 dt=859/1 dn=0 df=3224 of=0 ri=0 ql=0 b=10
7 c=17829 g=17830 pq=0 pqc=17829 qp=1 dt=3761/1 dn=0 df=1818 of=0 ri=0 ql=2 b=10
0 c=20972 g=20973 pq=1 pqc=20972 qp=0 dt=545/1/0 df=50 of=0 ri=0 ql=163 qs=NRW. kt=0/W/0 ktl=ebc3 b=10 ci=153737 co=0 ca=0
1 c=20972 g=20973 pq=1 pqc=20972 qp=0 dt=967/1/0 df=58 of=0 ri=0 ql=634 qs=NRW. kt=0/W/1 ktl=58c b=10 ci=191037 co=0 ca=0
2 c=20972 g=20973 pq=1 pqc=20972 qp=0 dt=1081/1/0 df=175 of=0 ri=0 ql=74 qs=N.W. kt=0/W/2 ktl=da94 b=10 ci=75991 co=0 ca=0
3 c=20942 g=20943 pq=1 pqc=20942 qp=1 dt=1846/0/0 df=404 of=0 ri=0 ql=0 qs=.... kt=0/W/3 ktl=d1cd b=10 ci=72261 co=0 ca=0
4 c=20972 g=20973 pq=1 pqc=20972 qp=0 dt=369/1/0 df=83 of=0 ri=0 ql=48 qs=N.W. kt=0/W/4 ktl=e0e7 b=10 ci=128365 co=0 ca=0
5 c=20972 g=20973 pq=1 pqc=20972 qp=0 dt=381/1/0 df=64 of=0 ri=0 ql=169 qs=NRW. kt=0/W/5 ktl=fb2f b=10 ci=164360 co=0 ca=0
6 c=20972 g=20973 pq=1 pqc=20972 qp=0 dt=1037/1/0 df=183 of=0 ri=0 ql=62 qs=N.W. kt=0/W/6 ktl=d2ad b=10 ci=65663 co=0 ca=0
7 c=20897 g=20897 pq=1 pqc=20896 qp=0 dt=1572/0/0 df=382 of=0 ri=0 ql=0 qs=.... kt=0/W/7 ktl=cf15 b=10 ci=75006 co=0 ca=0
rcu_bh:
0 c=-275 g=-275 pq=1 pqc=-275 qp=0 dt=10951/1 dn=0 df=0 of=0 ri=0 ql=0 b=10
1 c=-275 g=-275 pq=1 pqc=-275 qp=0 dt=16117/1 dn=0 df=13 of=0 ri=0 ql=0 b=10
2 c=-275 g=-275 pq=1 pqc=-275 qp=0 dt=1445/1 dn=0 df=15 of=0 ri=0 ql=0 b=10
3 c=-275 g=-275 pq=1 pqc=-275 qp=0 dt=6681/1 dn=0 df=9 of=0 ri=0 ql=0 b=10
4 c=-275 g=-275 pq=1 pqc=-275 qp=0 dt=1003/1 dn=0 df=15 of=0 ri=0 ql=0 b=10
5 c=-275 g=-275 pq=1 pqc=-275 qp=0 dt=3887/1 dn=0 df=15 of=0 ri=0 ql=0 b=10
6 c=-275 g=-275 pq=1 pqc=-275 qp=0 dt=859/1 dn=0 df=15 of=0 ri=0 ql=0 b=10
7 c=-275 g=-275 pq=1 pqc=-275 qp=0 dt=3761/1 dn=0 df=15 of=0 ri=0 ql=0 b=10
0 c=1480 g=1480 pq=1 pqc=1479 qp=0 dt=545/1/0 df=6 of=0 ri=1 ql=0 qs=.... kt=0/W/0 ktl=ebc3 b=10 ci=0 co=0 ca=0
1 c=1480 g=1480 pq=1 pqc=1479 qp=0 dt=967/1/0 df=3 of=0 ri=1 ql=0 qs=.... kt=0/W/1 ktl=58c b=10 ci=151 co=0 ca=0
2 c=1480 g=1480 pq=1 pqc=1479 qp=0 dt=1081/1/0 df=6 of=0 ri=1 ql=0 qs=.... kt=0/W/2 ktl=da94 b=10 ci=0 co=0 ca=0
3 c=1480 g=1480 pq=1 pqc=1479 qp=0 dt=1846/0/0 df=8 of=0 ri=1 ql=0 qs=.... kt=0/W/3 ktl=d1cd b=10 ci=0 co=0 ca=0
4 c=1480 g=1480 pq=1 pqc=1479 qp=0 dt=369/1/0 df=6 of=0 ri=1 ql=0 qs=.... kt=0/W/4 ktl=e0e7 b=10 ci=0 co=0 ca=0
5 c=1480 g=1480 pq=1 pqc=1479 qp=0 dt=381/1/0 df=4 of=0 ri=1 ql=0 qs=.... kt=0/W/5 ktl=fb2f b=10 ci=0 co=0 ca=0
6 c=1480 g=1480 pq=1 pqc=1479 qp=0 dt=1037/1/0 df=6 of=0 ri=1 ql=0 qs=.... kt=0/W/6 ktl=d2ad b=10 ci=0 co=0 ca=0
7 c=1474 g=1474 pq=1 pqc=1473 qp=0 dt=1572/0/0 df=8 of=0 ri=1 ql=0 qs=.... kt=0/W/7 ktl=cf15 b=10 ci=0 co=0 ca=0
The first section lists the rcu_data structures for rcu_sched, the second
for rcu_bh. Note that CONFIG_TREE_PREEMPT_RCU kernels will have an
@ -52,17 +64,18 @@ o The number at the beginning of each line is the CPU number.
substantially larger than the number of actual CPUs.
o "c" is the count of grace periods that this CPU believes have
completed. CPUs in dynticks idle mode may lag quite a ways
behind, for example, CPU 4 under "rcu_sched" above, which has
slept through the past 25 RCU grace periods. It is not unusual
to see CPUs lagging by thousands of grace periods.
completed. Offlined CPUs and CPUs in dynticks idle mode may
lag quite a ways behind, for example, CPU 6 under "rcu_sched"
above, which has been offline through not quite 40,000 RCU grace
periods. It is not unusual to see CPUs lagging by thousands of
grace periods.
o "g" is the count of grace periods that this CPU believes have
started. Again, CPUs in dynticks idle mode may lag behind.
If the "c" and "g" values are equal, this CPU has already
reported a quiescent state for the last RCU grace period that
it is aware of, otherwise, the CPU believes that it owes RCU a
quiescent state.
started. Again, offlined CPUs and CPUs in dynticks idle mode
may lag behind. If the "c" and "g" values are equal, this CPU
has already reported a quiescent state for the last RCU grace
period that it is aware of, otherwise, the CPU believes that it
owes RCU a quiescent state.
o "pq" indicates that this CPU has passed through a quiescent state
for the current grace period. It is possible for "pq" to be
@ -81,7 +94,8 @@ o "pqc" indicates which grace period the last-observed quiescent
the next grace period!
o "qp" indicates that RCU still expects a quiescent state from
this CPU.
this CPU. Offlined CPUs and CPUs in dyntick idle mode might
well have qp=1, which is OK: RCU is still ignoring them.
o "dt" is the current value of the dyntick counter that is incremented
when entering or leaving dynticks idle state, either by the
@ -108,7 +122,7 @@ o "df" is the number of times that some other CPU has forced a
o "of" is the number of times that some other CPU has forced a
quiescent state on behalf of this CPU due to this CPU being
offline. In a perfect world, this might neve happen, but it
offline. In a perfect world, this might never happen, but it
turns out that offlining and onlining a CPU can take several grace
periods, and so there is likely to be an extended period of time
when RCU believes that the CPU is online when it really is not.
@ -125,6 +139,62 @@ o "ql" is the number of RCU callbacks currently residing on
of what state they are in (new, waiting for grace period to
start, waiting for grace period to end, ready to invoke).
o "qs" gives an indication of the state of the callback queue
with four characters:
"N" Indicates that there are callbacks queued that are not
ready to be handled by the next grace period, and thus
will be handled by the grace period following the next
one.
"R" Indicates that there are callbacks queued that are
ready to be handled by the next grace period.
"W" Indicates that there are callbacks queued that are
waiting on the current grace period.
"D" Indicates that there are callbacks queued that have
already been handled by a prior grace period, and are
thus waiting to be invoked. Note that callbacks in
the process of being invoked are not counted here.
Callbacks in the process of being invoked are those
that have been removed from the rcu_data structures
queues by rcu_do_batch(), but which have not yet been
invoked.
If there are no callbacks in a given one of the above states,
the corresponding character is replaced by ".".
o "kt" is the per-CPU kernel-thread state. The digit preceding
the first slash is zero if there is no work pending and 1
otherwise. The character between the first pair of slashes is
as follows:
"S" The kernel thread is stopped, in other words, all
CPUs corresponding to this rcu_node structure are
offline.
"R" The kernel thread is running.
"W" The kernel thread is waiting because there is no work
for it to do.
"O" The kernel thread is waiting because it has been
forced off of its designated CPU or because its
->cpus_allowed mask permits it to run on other than
its designated CPU.
"Y" The kernel thread is yielding to avoid hogging CPU.
"?" Unknown value, indicates a bug.
The number after the final slash is the CPU that the kthread
is actually running on.
o "ktl" is the low-order 16 bits (in hexadecimal) of the count of
the number of times that this CPU's per-CPU kthread has gone
through its loop servicing invoke_rcu_cpu_kthread() requests.
o "b" is the batch limit for this CPU. If more than this number
of RCU callbacks is ready to invoke, then the remainder will
be deferred.
@ -174,14 +244,14 @@ o "gpnum" is the number of grace periods that have started. It is
The output of "cat rcu/rcuhier" looks as follows, with very long lines:
c=6902 g=6903 s=2 jfq=3 j=72c7 nfqs=13142/nfqsng=0(13142) fqlh=6
1/1 .>. 0:127 ^0
3/3 .>. 0:35 ^0 0/0 .>. 36:71 ^1 0/0 .>. 72:107 ^2 0/0 .>. 108:127 ^3
3/3f .>. 0:5 ^0 2/3 .>. 6:11 ^1 0/0 .>. 12:17 ^2 0/0 .>. 18:23 ^3 0/0 .>. 24:29 ^4 0/0 .>. 30:35 ^5 0/0 .>. 36:41 ^0 0/0 .>. 42:47 ^1 0/0 .>. 48:53 ^2 0/0 .>. 54:59 ^3 0/0 .>. 60:65 ^4 0/0 .>. 66:71 ^5 0/0 .>. 72:77 ^0 0/0 .>. 78:83 ^1 0/0 .>. 84:89 ^2 0/0 .>. 90:95 ^3 0/0 .>. 96:101 ^4 0/0 .>. 102:107 ^5 0/0 .>. 108:113 ^0 0/0 .>. 114:119 ^1 0/0 .>. 120:125 ^2 0/0 .>. 126:127 ^3
1/1 ..>. 0:127 ^0
3/3 ..>. 0:35 ^0 0/0 ..>. 36:71 ^1 0/0 ..>. 72:107 ^2 0/0 ..>. 108:127 ^3
3/3f ..>. 0:5 ^0 2/3 ..>. 6:11 ^1 0/0 ..>. 12:17 ^2 0/0 ..>. 18:23 ^3 0/0 ..>. 24:29 ^4 0/0 ..>. 30:35 ^5 0/0 ..>. 36:41 ^0 0/0 ..>. 42:47 ^1 0/0 ..>. 48:53 ^2 0/0 ..>. 54:59 ^3 0/0 ..>. 60:65 ^4 0/0 ..>. 66:71 ^5 0/0 ..>. 72:77 ^0 0/0 ..>. 78:83 ^1 0/0 ..>. 84:89 ^2 0/0 ..>. 90:95 ^3 0/0 ..>. 96:101 ^4 0/0 ..>. 102:107 ^5 0/0 ..>. 108:113 ^0 0/0 ..>. 114:119 ^1 0/0 ..>. 120:125 ^2 0/0 ..>. 126:127 ^3
rcu_bh:
c=-226 g=-226 s=1 jfq=-5701 j=72c7 nfqs=88/nfqsng=0(88) fqlh=0
0/1 .>. 0:127 ^0
0/3 .>. 0:35 ^0 0/0 .>. 36:71 ^1 0/0 .>. 72:107 ^2 0/0 .>. 108:127 ^3
0/3f .>. 0:5 ^0 0/3 .>. 6:11 ^1 0/0 .>. 12:17 ^2 0/0 .>. 18:23 ^3 0/0 .>. 24:29 ^4 0/0 .>. 30:35 ^5 0/0 .>. 36:41 ^0 0/0 .>. 42:47 ^1 0/0 .>. 48:53 ^2 0/0 .>. 54:59 ^3 0/0 .>. 60:65 ^4 0/0 .>. 66:71 ^5 0/0 .>. 72:77 ^0 0/0 .>. 78:83 ^1 0/0 .>. 84:89 ^2 0/0 .>. 90:95 ^3 0/0 .>. 96:101 ^4 0/0 .>. 102:107 ^5 0/0 .>. 108:113 ^0 0/0 .>. 114:119 ^1 0/0 .>. 120:125 ^2 0/0 .>. 126:127 ^3
0/1 ..>. 0:127 ^0
0/3 ..>. 0:35 ^0 0/0 ..>. 36:71 ^1 0/0 ..>. 72:107 ^2 0/0 ..>. 108:127 ^3
0/3f ..>. 0:5 ^0 0/3 ..>. 6:11 ^1 0/0 ..>. 12:17 ^2 0/0 ..>. 18:23 ^3 0/0 ..>. 24:29 ^4 0/0 ..>. 30:35 ^5 0/0 ..>. 36:41 ^0 0/0 ..>. 42:47 ^1 0/0 ..>. 48:53 ^2 0/0 ..>. 54:59 ^3 0/0 ..>. 60:65 ^4 0/0 ..>. 66:71 ^5 0/0 ..>. 72:77 ^0 0/0 ..>. 78:83 ^1 0/0 ..>. 84:89 ^2 0/0 ..>. 90:95 ^3 0/0 ..>. 96:101 ^4 0/0 ..>. 102:107 ^5 0/0 ..>. 108:113 ^0 0/0 ..>. 114:119 ^1 0/0 ..>. 120:125 ^2 0/0 ..>. 126:127 ^3
This is once again split into "rcu_sched" and "rcu_bh" portions,
and CONFIG_TREE_PREEMPT_RCU kernels will again have an additional
@ -240,13 +310,20 @@ o Each element of the form "1/1 0:127 ^0" represents one struct
current grace period.
o The characters separated by the ">" indicate the state
of the blocked-tasks lists. A "T" preceding the ">"
of the blocked-tasks lists. A "G" preceding the ">"
indicates that at least one task blocked in an RCU
read-side critical section blocks the current grace
period, while a "." preceding the ">" indicates otherwise.
The character following the ">" indicates similarly for
the next grace period. A "T" should appear in this
field only for rcu-preempt.
period, while a "E" preceding the ">" indicates that
at least one task blocked in an RCU read-side critical
section blocks the current expedited grace period.
A "T" character following the ">" indicates that at
least one task is blocked within an RCU read-side
critical section, regardless of whether any current
grace period (expedited or normal) is inconvenienced.
A "." character appears if the corresponding condition
does not hold, so that "..>." indicates that no tasks
are blocked. In contrast, "GE>T" indicates maximal
inconvenience from blocked tasks.
o The numbers separated by the ":" are the range of CPUs
served by this struct rcu_node. This can be helpful
@ -328,6 +405,113 @@ o "nn" is the number of times that this CPU needed nothing. Alert
is due to short-circuit evaluation in rcu_pending().
The output of "cat rcu/rcutorture" looks as follows:
rcutorture test sequence: 0 (test in progress)
rcutorture update version number: 615
The first line shows the number of rcutorture tests that have completed
since boot. If a test is currently running, the "(test in progress)"
string will appear as shown above. The second line shows the number of
update cycles that the current test has started, or zero if there is
no test in progress.
The output of "cat rcu/rcuboost" looks as follows:
0:5 tasks=.... kt=W ntb=0 neb=0 nnb=0 j=2f95 bt=300f
balk: nt=0 egt=989 bt=0 nb=0 ny=0 nos=16
6:7 tasks=.... kt=W ntb=0 neb=0 nnb=0 j=2f95 bt=300f
balk: nt=0 egt=225 bt=0 nb=0 ny=0 nos=6
This information is output only for rcu_preempt. Each two-line entry
corresponds to a leaf rcu_node strcuture. The fields are as follows:
o "n:m" is the CPU-number range for the corresponding two-line
entry. In the sample output above, the first entry covers
CPUs zero through five and the second entry covers CPUs 6
and 7.
o "tasks=TNEB" gives the state of the various segments of the
rnp->blocked_tasks list:
"T" This indicates that there are some tasks that blocked
while running on one of the corresponding CPUs while
in an RCU read-side critical section.
"N" This indicates that some of the blocked tasks are preventing
the current normal (non-expedited) grace period from
completing.
"E" This indicates that some of the blocked tasks are preventing
the current expedited grace period from completing.
"B" This indicates that some of the blocked tasks are in
need of RCU priority boosting.
Each character is replaced with "." if the corresponding
condition does not hold.
o "kt" is the state of the RCU priority-boosting kernel
thread associated with the corresponding rcu_node structure.
The state can be one of the following:
"S" The kernel thread is stopped, in other words, all
CPUs corresponding to this rcu_node structure are
offline.
"R" The kernel thread is running.
"W" The kernel thread is waiting because there is no work
for it to do.
"Y" The kernel thread is yielding to avoid hogging CPU.
"?" Unknown value, indicates a bug.
o "ntb" is the number of tasks boosted.
o "neb" is the number of tasks boosted in order to complete an
expedited grace period.
o "nnb" is the number of tasks boosted in order to complete a
normal (non-expedited) grace period. When boosting a task
that was blocking both an expedited and a normal grace period,
it is counted against the expedited total above.
o "j" is the low-order 16 bits of the jiffies counter in
hexadecimal.
o "bt" is the low-order 16 bits of the value that the jiffies
counter will have when we next start boosting, assuming that
the current grace period does not end beforehand. This is
also in hexadecimal.
o "balk: nt" counts the number of times we didn't boost (in
other words, we balked) even though it was time to boost because
there were no blocked tasks to boost. This situation occurs
when there is one blocked task on one rcu_node structure and
none on some other rcu_node structure.
o "egt" counts the number of times we balked because although
there were blocked tasks, none of them were blocking the
current grace period, whether expedited or otherwise.
o "bt" counts the number of times we balked because boosting
had already been initiated for the current grace period.
o "nb" counts the number of times we balked because there
was at least one task blocking the current non-expedited grace
period that never had blocked. If it is already running, it
just won't help to boost its priority!
o "ny" counts the number of times we balked because it was
not yet time to start boosting.
o "nos" counts the number of times we balked for other
reasons, e.g., the grace period ended first.
CONFIG_TINY_RCU and CONFIG_TINY_PREEMPT_RCU debugfs Files and Formats
These implementations of RCU provides a single debugfs file under the
@ -394,9 +578,9 @@ o "neb" is the number of expedited grace periods that have had
o "nnb" is the number of normal grace periods that have had
to resort to RCU priority boosting since boot.
o "j" is the low-order 12 bits of the jiffies counter in hexadecimal.
o "j" is the low-order 16 bits of the jiffies counter in hexadecimal.
o "bt" is the low-order 12 bits of the value that the jiffies counter
o "bt" is the low-order 16 bits of the value that the jiffies counter
will have at the next time that boosting is scheduled to begin.
o In the line beginning with "normal balk", the fields are as follows:

9
Documentation/SubmittingPatches
View File

@ -714,10 +714,11 @@ Jeff Garzik, "Linux kernel patch submission format".
<http://linux.yyz.us/patch-format.html>
Greg Kroah-Hartman, "How to piss off a kernel subsystem maintainer".
<http://www.kroah.com/log/2005/03/31/>
<http://www.kroah.com/log/2005/07/08/>
<http://www.kroah.com/log/2005/10/19/>
<http://www.kroah.com/log/2006/01/11/>
<http://www.kroah.com/log/linux/maintainer.html>
<http://www.kroah.com/log/linux/maintainer-02.html>
<http://www.kroah.com/log/linux/maintainer-03.html>
<http://www.kroah.com/log/linux/maintainer-04.html>
<http://www.kroah.com/log/linux/maintainer-05.html>
NO!!!! No more huge patch bombs to linux-kernel@vger.kernel.org people!
<http://marc.theaimsgroup.com/?l=linux-kernel&m=112112749912944&w=2>

15
Documentation/cgroups/memory.txt
View File

@ -52,8 +52,10 @@ Brief summary of control files.
tasks # attach a task(thread) and show list of threads
cgroup.procs # show list of processes
cgroup.event_control # an interface for event_fd()
memory.usage_in_bytes # show current memory(RSS+Cache) usage.
memory.memsw.usage_in_bytes # show current memory+Swap usage
memory.usage_in_bytes # show current res_counter usage for memory
(See 5.5 for details)
memory.memsw.usage_in_bytes # show current res_counter usage for memory+Swap
(See 5.5 for details)
memory.limit_in_bytes # set/show limit of memory usage
memory.memsw.limit_in_bytes # set/show limit of memory+Swap usage
memory.failcnt # show the number of memory usage hits limits
@ -453,6 +455,15 @@ memory under it will be reclaimed.
You can reset failcnt by writing 0 to failcnt file.
# echo 0 > .../memory.failcnt
5.5 usage_in_bytes
For efficiency, as other kernel components, memory cgroup uses some optimization
to avoid unnecessary cacheline false sharing. usage_in_bytes is affected by the
method and doesn't show 'exact' value of memory(and swap) usage, it's an fuzz
value for efficient access. (Of course, when necessary, it's synchronized.)
If you want to know more exact memory usage, you should use RSS+CACHE(+SWAP)
value in memory.stat(see 5.2).
6. Hierarchy support
The memory controller supports a deep hierarchy and hierarchical accounting.

397
Documentation/devicetree/bindings/crypto/fsl-sec4.txt Normal file
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@ -0,0 +1,397 @@
=====================================================================
SEC 4 Device Tree Binding
Copyright (C) 2008-2011 Freescale Semiconductor Inc.
CONTENTS
-Overview
-SEC 4 Node
-Job Ring Node
-Run Time Integrity Check (RTIC) Node
-Run Time Integrity Check (RTIC) Memory Node
-Secure Non-Volatile Storage (SNVS) Node
-Full Example
NOTE: the SEC 4 is also known as Freescale's Cryptographic Accelerator
Accelerator and Assurance Module (CAAM).
=====================================================================
Overview
DESCRIPTION
SEC 4 h/w can process requests from 2 types of sources.
1. DPAA Queue Interface (HW interface between Queue Manager & SEC 4).
2. Job Rings (HW interface between cores & SEC 4 registers).
High Speed Data Path Configuration:
HW interface between QM & SEC 4 and also BM & SEC 4, on DPAA-enabled parts
such as the P4080. The number of simultaneous dequeues the QI can make is
equal to the number of Descriptor Controller (DECO) engines in a particular
SEC version. E.g., the SEC 4.0 in the P4080 has 5 DECOs and can thus
dequeue from 5 subportals simultaneously.
Job Ring Data Path Configuration:
Each JR is located on a separate 4k page, they may (or may not) be made visible
in the memory partition devoted to a particular core. The P4080 has 4 JRs, so
up to 4 JRs can be configured; and all 4 JRs process requests in parallel.
=====================================================================
SEC 4 Node
Description
Node defines the base address of the SEC 4 block.
This block specifies the address range of all global
configuration registers for the SEC 4 block. It
also receives interrupts from the Run Time Integrity Check
(RTIC) function within the SEC 4 block.
PROPERTIES
- compatible
Usage: required
Value type: <string>
Definition: Must include "fsl,sec-v4.0"
- #address-cells
Usage: required
Value type: <u32>
Definition: A standard property. Defines the number of cells
for representing physical addresses in child nodes.
- #size-cells
Usage: required
Value type: <u32>
Definition: A standard property. Defines the number of cells
for representing the size of physical addresses in
child nodes.
- reg
Usage: required
Value type: <prop-encoded-array>
Definition: A standard property. Specifies the physical
address and length of the SEC4 configuration registers.
registers
- ranges
Usage: required
Value type: <prop-encoded-array>
Definition: A standard property. Specifies the physical address
range of the SEC 4.0 register space (-SNVS not included). A
triplet that includes the child address, parent address, &
length.
- interrupts
Usage: required
Value type: <prop_encoded-array>
Definition: Specifies the interrupts generated by this
device. The value of the interrupts property
consists of one interrupt specifier. The format
of the specifier is defined by the binding document
describing the node's interrupt parent.
- interrupt-parent
Usage: (required if interrupt property is defined)
Value type: <phandle>
Definition: A single <phandle> value that points
to the interrupt parent to which the child domain
is being mapped.
Note: All other standard properties (see the ePAPR) are allowed
but are optional.
EXAMPLE
crypto@300000 {
compatible = "fsl,sec-v4.0";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x300000 0x10000>;
ranges = <0 0x300000 0x10000>;
interrupt-parent = <&mpic>;
interrupts = <92 2>;
};
=====================================================================
Job Ring (JR) Node
Child of the crypto node defines data processing interface to SEC 4
across the peripheral bus for purposes of processing
cryptographic descriptors. The specified address
range can be made visible to one (or more) cores.
The interrupt defined for this node is controlled within
the address range of this node.
- compatible
Usage: required
Value type: <string>
Definition: Must include "fsl,sec-v4.0-job-ring"
- reg
Usage: required
Value type: <prop-encoded-array>
Definition: Specifies a two JR parameters: an offset from
the parent physical address and the length the JR registers.
- fsl,liodn
Usage: optional-but-recommended
Value type: <prop-encoded-array>
Definition:
Specifies the LIODN to be used in conjunction with
the ppid-to-liodn table that specifies the PPID to LIODN mapping.
Needed if the PAMU is used. Value is a 12 bit value
where value is a LIODN ID for this JR. This property is
normally set by boot firmware.
- interrupts
Usage: required
Value type: <prop_encoded-array>
Definition: Specifies the interrupts generated by this
device. The value of the interrupts property
consists of one interrupt specifier. The format
of the specifier is defined by the binding document
describing the node's interrupt parent.
- interrupt-parent
Usage: (required if interrupt property is defined)
Value type: <phandle>
Definition: A single <phandle> value that points
to the interrupt parent to which the child domain
is being mapped.
EXAMPLE
jr@1000 {
compatible = "fsl,sec-v4.0-job-ring";
reg = <0x1000 0x1000>;
fsl,liodn = <0x081>;
interrupt-parent = <&mpic>;
interrupts = <88 2>;
};
=====================================================================
Run Time Integrity Check (RTIC) Node
Child node of the crypto node. Defines a register space that
contains up to 5 sets of addresses and their lengths (sizes) that
will be checked at run time. After an initial hash result is
calculated, these addresses are checked by HW to monitor any
change. If any memory is modified, a Security Violation is
triggered (see SNVS definition).
- compatible
Usage: required
Value type: <string>
Definition: Must include "fsl,sec-v4.0-rtic".
- #address-cells
Usage: required
Value type: <u32>
Definition: A standard property. Defines the number of cells
for representing physical addresses in child nodes. Must
have a value of 1.
- #size-cells
Usage: required
Value type: <u32>
Definition: A standard property. Defines the number of cells
for representing the size of physical addresses in
child nodes. Must have a value of 1.
- reg
Usage: required
Value type: <prop-encoded-array>
Definition: A standard property. Specifies a two parameters:
an offset from the parent physical address and the length
the SEC4 registers.
- ranges
Usage: required
Value type: <prop-encoded-array>
Definition: A standard property. Specifies the physical address
range of the SEC 4 register space (-SNVS not included). A
triplet that includes the child address, parent address, &
length.
EXAMPLE
rtic@6000 {
compatible = "fsl,sec-v4.0-rtic";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x6000 0x100>;
ranges = <0x0 0x6100 0xe00>;
};
=====================================================================
Run Time Integrity Check (RTIC) Memory Node
A child node that defines individual RTIC memory regions that are used to
perform run-time integrity check of memory areas that should not modified.
The node defines a register that contains the memory address &
length (combined) and a second register that contains the hash result
in big endian format.
- compatible
Usage: required
Value type: <string>
Definition: Must include "fsl,sec-v4.0-rtic-memory".
- reg
Usage: required
Value type: <prop-encoded-array>
Definition: A standard property. Specifies two parameters:
an offset from the parent physical address and the length:
1. The location of the RTIC memory address & length registers.
2. The location RTIC hash result.
- fsl,rtic-region
Usage: optional-but-recommended
Value type: <prop-encoded-array>
Definition:
Specifies the HW address (36 bit address) for this region
followed by the length of the HW partition to be checked;
the address is represented as a 64 bit quantity followed
by a 32 bit length.
- fsl,liodn
Usage: optional-but-recommended
Value type: <prop-encoded-array>
Definition:
Specifies the LIODN to be used in conjunction with
the ppid-to-liodn table that specifies the PPID to LIODN
mapping. Needed if the PAMU is used. Value is a 12 bit value
where value is a LIODN ID for this RTIC memory region. This
property is normally set by boot firmware.
EXAMPLE
rtic-a@0 {
compatible = "fsl,sec-v4.0-rtic-memory";
reg = <0x00 0x20 0x100 0x80>;
fsl,liodn = <0x03c>;
fsl,rtic-region = <0x12345678 0x12345678 0x12345678>;
};
=====================================================================
Secure Non-Volatile Storage (SNVS) Node
Node defines address range and the associated
interrupt for the SNVS function. This function
monitors security state information & reports
security violations.
- compatible
Usage: required
Value type: <string>
Definition: Must include "fsl,sec-v4.0-mon".
- reg
Usage: required
Value type: <prop-encoded-array>
Definition: A standard property. Specifies the physical
address and length of the SEC4 configuration
registers.
- interrupts
Usage: required
Value type: <prop_encoded-array>
Definition: Specifies the interrupts generated by this
device. The value of the interrupts property
consists of one interrupt specifier. The format
of the specifier is defined by the binding document
describing the node's interrupt parent.
- interrupt-parent
Usage: (required if interrupt property is defined)
Value type: <phandle>
Definition: A single <phandle> value that points
to the interrupt parent to which the child domain
is being mapped.
EXAMPLE
sec_mon@314000 {
compatible = "fsl,sec-v4.0-mon";
reg = <0x314000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <93 2>;
};
=====================================================================
FULL EXAMPLE
crypto: crypto@300000 {
compatible = "fsl,sec-v4.0";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x300000 0x10000>;
ranges = <0 0x300000 0x10000>;
interrupt-parent = <&mpic>;
interrupts = <92 2>;
sec_jr0: jr@1000 {
compatible = "fsl,sec-v4.0-job-ring";
reg = <0x1000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <88 2>;
};
sec_jr1: jr@2000 {
compatible = "fsl,sec-v4.0-job-ring";
reg = <0x2000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <89 2>;
};
sec_jr2: jr@3000 {
compatible = "fsl,sec-v4.0-job-ring";
reg = <0x3000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <90 2>;
};
sec_jr3: jr@4000 {
compatible = "fsl,sec-v4.0-job-ring";
reg = <0x4000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <91 2>;
};
rtic@6000 {
compatible = "fsl,sec-v4.0-rtic";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x6000 0x100>;
ranges = <0x0 0x6100 0xe00>;
rtic_a: rtic-a@0 {
compatible = "fsl,sec-v4.0-rtic-memory";
reg = <0x00 0x20 0x100 0x80>;
};
rtic_b: rtic-b@20 {
compatible = "fsl,sec-v4.0-rtic-memory";
reg = <0x20 0x20 0x200 0x80>;
};
rtic_c: rtic-c@40 {
compatible = "fsl,sec-v4.0-rtic-memory";
reg = <0x40 0x20 0x300 0x80>;
};
rtic_d: rtic-d@60 {
compatible = "fsl,sec-v4.0-rtic-memory";
reg = <0x60 0x20 0x500 0x80>;
};
};
};
sec_mon: sec_mon@314000 {
compatible = "fsl,sec-v4.0-mon";
reg = <0x314000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <93 2>;
};
=====================================================================

61
Documentation/devicetree/bindings/net/can/fsl-flexcan.txt Executable file
View File

@ -0,0 +1,61 @@
CAN Device Tree Bindings
------------------------
2011 Freescale Semiconductor, Inc.
fsl,flexcan-v1.0 nodes
-----------------------
In addition to the required compatible-, reg- and interrupt-properties, you can
also specify which clock source shall be used for the controller.
CPI Clock- Can Protocol Interface Clock
This CLK_SRC bit of CTRL(control register) selects the clock source to
the CAN Protocol Interface(CPI) to be either the peripheral clock
(driven by the PLL) or the crystal oscillator clock. The selected clock
is the one fed to the prescaler to generate the Serial Clock (Sclock).
The PRESDIV field of CTRL(control register) controls a prescaler that
generates the Serial Clock (Sclock), whose period defines the
time quantum used to compose the CAN waveform.
Can Engine Clock Source
There are two sources for CAN clock
- Platform Clock It represents the bus clock
- Oscillator Clock
Peripheral Clock (PLL)
--------------
|
--------- -------------
| |CPI Clock | Prescaler | Sclock
| |---------------->| (1.. 256) |------------>
--------- -------------
| |
-------------- ---------------------CLK_SRC
Oscillator Clock
- fsl,flexcan-clock-source : CAN Engine Clock Source.This property selects
the peripheral clock. PLL clock is fed to the
prescaler to generate the Serial Clock (Sclock).
Valid values are "oscillator" and "platform"
"oscillator": CAN engine clock source is oscillator clock.
"platform" The CAN engine clock source is the bus clock
(platform clock).
- fsl,flexcan-clock-divider : for the reference and system clock, an additional
clock divider can be specified.
- clock-frequency: frequency required to calculate the bitrate for FlexCAN.
Note:
- v1.0 of flexcan-v1.0 represent the IP block version for P1010 SOC.
- P1010 does not have oscillator as the Clock Source.So the default
Clock Source is platform clock.
Examples:
can0@1c000 {
compatible = "fsl,flexcan-v1.0";
reg = <0x1c000 0x1000>;
interrupts = <48 0x2>;
interrupt-parent = <&mpic>;
fsl,flexcan-clock-source = "platform";
fsl,flexcan-clock-divider = <2>;
clock-frequency = <fixed by u-boot>;
};

76
Documentation/devicetree/bindings/powerpc/fsl/ifc.txt Normal file
View File

@ -0,0 +1,76 @@
Integrated Flash Controller
Properties:
- name : Should be ifc
- compatible : should contain "fsl,ifc". The version of the integrated
flash controller can be found in the IFC_REV register at
offset zero.
- #address-cells : Should be either two or three. The first cell is the
chipselect number, and the remaining cells are the
offset into the chipselect.
- #size-cells : Either one or two, depending on how large each chipselect
can be.
- reg : Offset and length of the register set for the device
- interrupts : IFC has two interrupts. The first one is the "common"
interrupt(CM_EVTER_STAT), and second is the NAND interrupt
(NAND_EVTER_STAT).
- ranges : Each range corresponds to a single chipselect, and covers
the entire access window as configured.
Child device nodes describe the devices connected to IFC such as NOR (e.g.
cfi-flash) and NAND (fsl,ifc-nand). There might be board specific devices
like FPGAs, CPLDs, etc.
Example:
ifc@ffe1e000 {
compatible = "fsl,ifc", "simple-bus";
#address-cells = <2>;
#size-cells = <1>;
reg = <0x0 0xffe1e000 0 0x2000>;
interrupts = <16 2 19 2>;
/* NOR, NAND Flashes and CPLD on board */
ranges = <0x0 0x0 0x0 0xee000000 0x02000000
0x1 0x0 0x0 0xffa00000 0x00010000
0x3 0x0 0x0 0xffb00000 0x00020000>;
flash@0,0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "cfi-flash";
reg = <0x0 0x0 0x2000000>;
bank-width = <2>;
device-width = <1>;
partition@0 {
/* 32MB for user data */
reg = <0x0 0x02000000>;
label = "NOR Data";
};
};
flash@1,0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,ifc-nand";
reg = <0x1 0x0 0x10000>;
partition@0 {
/* This location must not be altered */
/* 1MB for u-boot Bootloader Image */
reg = <0x0 0x00100000>;
label = "NAND U-Boot Image";
read-only;
};
};
cpld@3,0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,p1010rdb-cpld";
reg = <0x3 0x0 0x000001f>;
};
};

38
Documentation/devicetree/bindings/powerpc/fsl/mpic-timer.txt Normal file
View File

@ -0,0 +1,38 @@
* Freescale MPIC timers
Required properties:
- compatible: "fsl,mpic-global-timer"
- reg : Contains two regions. The first is the main timer register bank
(GTCCRxx, GTBCRxx, GTVPRxx, GTDRxx). The second is the timer control
register (TCRx) for the group.
- fsl,available-ranges: use <start count> style section to define which
timer interrupts can be used. This property is optional; without this,
all timers within the group can be used.
- interrupts: one interrupt per timer in the group, in order, starting
with timer zero. If timer-available-ranges is present, only the
interrupts that correspond to available timers shall be present.
Example:
/* Note that this requires #interrupt-cells to be 4 */
timer0: timer@41100 {
compatible = "fsl,mpic-global-timer";
reg = <0x41100 0x100 0x41300 4>;
/* Another AMP partition is using timers 0 and 1 */
fsl,available-ranges = <2 2>;
interrupts = <2 0 3 0
3 0 3 0>;
};
timer1: timer@42100 {
compatible = "fsl,mpic-global-timer";
reg = <0x42100 0x100 0x42300 4>;
interrupts = <4 0 3 0
5 0 3 0
6 0 3 0
7 0 3 0>;
};

2
Documentation/devicetree/bindings/powerpc/fsl/mpic.txt
View File

@ -190,7 +190,7 @@ EXAMPLE 4
*/
timer0: timer@41100 {
compatible = "fsl,mpic-global-timer";
reg = <0x41100 0x100>;
reg = <0x41100 0x100 0x41300 4>;
interrupts = <0 0 3 0
1 0 3 0
2 0 3 0

2
Documentation/devicetree/bindings/powerpc/nintendo/wii.txt
View File

@ -127,7 +127,7 @@ Nintendo Wii device tree
- reg : should contain the SDHCI registers location and length
- interrupts : should contain the SDHCI interrupt
1.j) The Inter-Processsor Communication (IPC) node
1.j) The Inter-Processor Communication (IPC) node
Represent the Inter-Processor Communication interface. This interface
enables communications between the Broadway and the Starlet processors.

58
Documentation/dontdiff
View File

@ -1,6 +1,8 @@
*.a
*.aux
*.bin
*.bz2
*.cis
*.cpio
*.csp
*.dsp
@ -8,6 +10,8 @@
*.elf
*.eps
*.fw
*.gcno
*.gcov
*.gen.S
*.gif
*.grep
@ -19,14 +23,20 @@
*.ko
*.log
*.lst
*.lzma
*.lzo
*.mo
*.moc
*.mod.c
*.o
*.o.*
*.order
*.orig
*.out
*.patch
*.pdf
*.png
*.pot
*.ps
*.rej
*.s
@ -39,16 +49,22 @@
*.tex
*.ver
*.xml
*.xz
*_MODULES
*_vga16.c
*~
\#*#
*.9
*.9.gz
.*
.*.d
.mm
53c700_d.h
CVS
ChangeSet
GPATH
GRTAGS
GSYMS
GTAGS
Image
Kerntypes
Module.markers
@ -57,15 +73,14 @@ PENDING
SCCS
System.map*
TAGS
aconf
af_names.h
aic7*reg.h*
aic7*reg_print.c*
aic7*seq.h*
aicasm
aicdb.h*
altivec1.c
altivec2.c
altivec4.c
altivec8.c
altivec*.c
asm-offsets.h
asm_offsets.h
autoconf.h*
@ -80,6 +95,7 @@ btfixupprep
build
bvmlinux
bzImage*
capability_names.h
capflags.c
classlist.h*
comp*.log
@ -88,7 +104,8 @@ conf
config
config-*
config_data.h*
config_data.gz*
config.mak
config.mak.autogen
conmakehash
consolemap_deftbl.c*
cpustr.h
@ -96,7 +113,9 @@ crc32table.h*
cscope.*
defkeymap.c
devlist.h*
dnotify_test
docproc
dslm
elf2ecoff
elfconfig.h*
evergreen_reg_safe.h
@ -105,6 +124,7 @@ flask.h
fore200e_mkfirm
fore200e_pca_fw.c*
gconf
gconf.glade.h
gen-devlist
gen_crc32table
gen_init_cpio
@ -112,11 +132,12 @@ generated
genheaders
genksyms
*_gray256.c
hpet_example
hugepage-mmap
hugepage-shm
ihex2fw
ikconfig.h*
inat-tables.c
initramfs_data.cpio
initramfs_data.cpio.gz
initramfs_list
int16.c
int1.c
@ -133,15 +154,19 @@ kxgettext
lkc_defs.h
lex.c
lex.*.c
linux
logo_*.c
logo_*_clut224.c
logo_*_mono.c
lxdialog
mach
mach-types
mach-types.h
machtypes.h
map
map_hugetlb
maui_boot.h
media
mconf
miboot*
mk_elfconfig
@ -150,23 +175,29 @@ mkbugboot
mkcpustr
mkdep
mkprep
mkregtable
mktables
mktree
modpost
modules.builtin
modules.order
modversions.h*
nconf
ncscope.*
offset.h
offsets.h
oui.c*
page-types
parse.c
parse.h
patches*
pca200e.bin
pca200e_ecd.bin2
piggy.gz
perf.data
perf.data.old
perf-archive
piggyback
piggy.gzip
piggy.S
pnmtologo
ppc_defs.h*
@ -177,10 +208,9 @@ r200_reg_safe.h
r300_reg_safe.h
r420_reg_safe.h
r600_reg_safe.h
raid6altivec*.c
raid6int*.c
raid6tables.c
recordmcount
relocs
rlim_names.h
rn50_reg_safe.h
rs600_reg_safe.h
rv515_reg_safe.h
@ -194,6 +224,7 @@ split-include
syscalltab.h
tables.c
tags
test_get_len
tftpboot.img
timeconst.h
times.h*
@ -210,10 +241,13 @@ vdso32.so.dbg
vdso64.lds
vdso64.so.dbg
version.h*
vmImage
vmlinux
vmlinux-*
vmlinux.aout
vmlinux.bin.all
vmlinux.lds
vmlinuz
voffset.h
vsyscall.lds
vsyscall_32.lds

19
Documentation/driver-model/bus.txt
View File

@ -3,24 +3,7 @@ Bus Types
Definition
~~~~~~~~~~
struct bus_type {
char * name;
struct subsystem subsys;
struct kset drivers;
struct kset devices;
struct bus_attribute * bus_attrs;
struct device_attribute * dev_attrs;
struct driver_attribute * drv_attrs;
int (*match)(struct device * dev, struct device_driver * drv);
int (*hotplug) (struct device *dev, char **envp,
int num_envp, char *buffer, int buffer_size);
int (*suspend)(struct device * dev, pm_message_t state);
int (*resume)(struct device * dev);
};
See the kerneldoc for the struct bus_type.
int bus_register(struct bus_type * bus);

17
Documentation/driver-model/class.txt
View File

@ -27,22 +27,7 @@ The device class structure looks like:
typedef int (*devclass_add)(struct device *);
typedef void (*devclass_remove)(struct device *);
struct device_class {
char * name;
rwlock_t lock;
u32 devnum;
struct list_head node;
struct list_head drivers;
struct list_head intf_list;
struct driver_dir_entry dir;
struct driver_dir_entry device_dir;
struct driver_dir_entry driver_dir;
devclass_add add_device;
devclass_remove remove_device;
};
See the kerneldoc for the struct class.
A typical device class definition would look like:

91
Documentation/driver-model/device.txt
View File

@ -2,96 +2,7 @@
The Basic Device Structure
~~~~~~~~~~~~~~~~~~~~~~~~~~
struct device {
struct list_head g_list;
struct list_head node;
struct list_head bus_list;
struct list_head driver_list;
struct list_head intf_list;
struct list_head children;
struct device * parent;
char name[DEVICE_NAME_SIZE];
char bus_id[BUS_ID_SIZE];
spinlock_t lock;
atomic_t refcount;
struct bus_type * bus;
struct driver_dir_entry dir;
u32 class_num;
struct device_driver *driver;
void *driver_data;
void *platform_data;
u32 current_state;
unsigned char *saved_state;
void (*release)(struct device * dev);
};
Fields
~~~~~~
g_list: Node in the global device list.
node: Node in device's parent's children list.
bus_list: Node in device's bus's devices list.
driver_list: Node in device's driver's devices list.
intf_list: List of intf_data. There is one structure allocated for
each interface that the device supports.
children: List of child devices.
parent: *** FIXME ***
name: ASCII description of device.
Example: " 3Com Corporation 3c905 100BaseTX [Boomerang]"
bus_id: ASCII representation of device's bus position. This
field should be a name unique across all devices on the
bus type the device belongs to.
Example: PCI bus_ids are in the form of
<bus number>:<slot number>.<function number>
This name is unique across all PCI devices in the system.
lock: Spinlock for the device.
refcount: Reference count on the device.
bus: Pointer to struct bus_type that device belongs to.
dir: Device's sysfs directory.
class_num: Class-enumerated value of the device.
driver: Pointer to struct device_driver that controls the device.
driver_data: Driver-specific data.
platform_data: Platform data specific to the device.
Example: for devices on custom boards, as typical of embedded
and SOC based hardware, Linux often uses platform_data to point
to board-specific structures describing devices and how they
are wired. That can include what ports are available, chip
variants, which GPIO pins act in what additional roles, and so
on. This shrinks the "Board Support Packages" (BSPs) and
minimizes board-specific #ifdefs in drivers.
current_state: Current power state of the device.
saved_state: Pointer to saved state of the device. This is usable by
the device driver controlling the device.
release: Callback to free the device after all references have
gone away. This should be set by the allocator of the
device (i.e. the bus driver that discovered the device).
See the kerneldoc for the struct device.
Programming Interface

18
Documentation/driver-model/driver.txt
View File

@ -1,23 +1,7 @@
Device Drivers
struct device_driver {
char * name;
struct bus_type * bus;
struct completion unloaded;
struct kobject kobj;
list_t devices;
struct module *owner;
int (*probe) (struct device * dev);
int (*remove) (struct device * dev);
int (*suspend) (struct device * dev, pm_message_t state);
int (*resume) (struct device * dev);
};
See the kerneldoc for the struct device_driver.
Allocation

31
Documentation/feature-removal-schedule.txt
View File

@ -35,17 +35,6 @@ Who: Luis R. Rodriguez <lrodriguez@atheros.com>
---------------------------
What: AR9170USB
When: 2.6.40
Why: This driver is deprecated and the firmware is no longer
maintained. The replacement driver "carl9170" has been
around for a while, so the devices are still supported.
Who: Christian Lamparter <chunkeey@googlemail.com>
---------------------------
What: IRQF_SAMPLE_RANDOM
Check: IRQF_SAMPLE_RANDOM
When: July 2009
@ -226,7 +215,7 @@ Who: Zhang Rui <rui.zhang@intel.com>
What: CONFIG_ACPI_PROCFS_POWER
When: 2.6.39
Why: sysfs I/F for ACPI power devices, including AC and Battery,
has been working in upstream kenrel since 2.6.24, Sep 2007.
has been working in upstream kernel since 2.6.24, Sep 2007.
In 2.6.37, we make the sysfs I/F always built in and this option
disabled by default.
Remove this option and the ACPI power procfs interface in 2.6.39.
@ -405,16 +394,6 @@ Who: anybody or Florian Mickler <florian@mickler.org>
----------------------------
What: capifs
When: February 2011
Files: drivers/isdn/capi/capifs.*
Why: udev fully replaces this special file system that only contains CAPI
NCCI TTY device nodes. User space (pppdcapiplugin) works without
noticing the difference.
Who: Jan Kiszka <jan.kiszka@web.de>
----------------------------
What: KVM paravirt mmu host support
When: January 2011
Why: The paravirt mmu host support is slower than non-paravirt mmu, both
@ -460,14 +439,6 @@ Who: Thomas Gleixner <tglx@linutronix.de>
----------------------------
What: The acpi_sleep=s4_nonvs command line option
When: 2.6.37
Files: arch/x86/kernel/acpi/sleep.c
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

1
Documentation/filesystems/proc.txt
View File

@ -836,7 +836,6 @@ Provides counts of softirq handlers serviced since boot time, for each cpu.
TASKLET: 0 0 0 290
SCHED: 27035 26983 26971 26746
HRTIMER: 0 0 0 0
RCU: 1678 1769 2178 2250
1.3 IDE devices in /proc/ide

4
Documentation/flexible-arrays.txt
View File

@ -66,10 +66,10 @@ trick is to ensure that any needed memory allocations are done before
entering atomic context, using:
int flex_array_prealloc(struct flex_array *array, unsigned int start,
unsigned int end, gfp_t flags);
unsigned int nr_elements, gfp_t flags);
This function will ensure that memory for the elements indexed in the range
defined by start and end has been allocated. Thereafter, a
defined by start and nr_elements has been allocated. Thereafter, a
flex_array_put() call on an element in that range is guaranteed not to
block.

0
Documentation/usb/hiddev.txt → Documentation/hid/hiddev.txt
View File

119
Documentation/hid/hidraw.txt Normal file
View File

@ -0,0 +1,119 @@
HIDRAW - Raw Access to USB and Bluetooth Human Interface Devices
==================================================================
The hidraw driver provides a raw interface to USB and Bluetooth Human
Interface Devices (HIDs). It differs from hiddev in that reports sent and
received are not parsed by the HID parser, but are sent to and received from
the device unmodified.
Hidraw should be used if the userspace application knows exactly how to
communicate with the hardware device, and is able to construct the HID
reports manually. This is often the case when making userspace drivers for
custom HID devices.
Hidraw is also useful for communicating with non-conformant HID devices
which send and receive data in a way that is inconsistent with their report
descriptors. Because hiddev parses reports which are sent and received
through it, checking them against the device's report descriptor, such
communication with these non-conformant devices is impossible using hiddev.
Hidraw is the only alternative, short of writing a custom kernel driver, for
these non-conformant devices.
A benefit of hidraw is that its use by userspace applications is independent
of the underlying hardware type. Currently, Hidraw is implemented for USB
and Bluetooth. In the future, as new hardware bus types are developed which
use the HID specification, hidraw will be expanded to add support for these
new bus types.
Hidraw uses a dynamic major number, meaning that udev should be relied on to
create hidraw device nodes. Udev will typically create the device nodes
directly under /dev (eg: /dev/hidraw0). As this location is distribution-
and udev rule-dependent, applications should use libudev to locate hidraw
devices attached to the system. There is a tutorial on libudev with a
working example at:
http://www.signal11.us/oss/udev/
The HIDRAW API
---------------
read()
-------
read() will read a queued report received from the HID device. On USB
devices, the reports read using read() are the reports sent from the device
on the INTERRUPT IN endpoint. By default, read() will block until there is
a report available to be read. read() can be made non-blocking, by passing
the O_NONBLOCK flag to open(), or by setting the O_NONBLOCK flag using
fcntl().
On a device which uses numbered reports, the first byte of the returned data
will be the report number; the report data follows, beginning in the second
byte. For devices which do not use numbered reports, the report data
will begin at the first byte.
write()
--------
The write() function will write a report to the device. For USB devices, if
the device has an INTERRUPT OUT endpoint, the report will be sent on that
endpoint. If it does not, the report will be sent over the control endpoint,
using a SET_REPORT transfer.
The first byte of the buffer passed to write() should be set to the report
number. If the device does not use numbered reports, the first byte should
be set to 0. The report data itself should begin at the second byte.
ioctl()
--------
Hidraw supports the following ioctls:
HIDIOCGRDESCSIZE: Get Report Descriptor Size
This ioctl will get the size of the device's report descriptor.
HIDIOCGRDESC: Get Report Descriptor
This ioctl returns the device's report descriptor using a
hidraw_report_descriptor struct. Make sure to set the size field of the
hidraw_report_descriptor struct to the size returned from HIDIOCGRDESCSIZE.
HIDIOCGRAWINFO: Get Raw Info
This ioctl will return a hidraw_devinfo struct containing the bus type, the
vendor ID (VID), and product ID (PID) of the device. The bus type can be one
of:
BUS_USB
BUS_HIL
BUS_BLUETOOTH
BUS_VIRTUAL
which are defined in linux/input.h.
HIDIOCGRAWNAME(len): Get Raw Name
This ioctl returns a string containing the vendor and product strings of
the device. The returned string is Unicode, UTF-8 encoded.
HIDIOCGRAWPHYS(len): Get Physical Address
This ioctl returns a string representing the physical address of the device.
For USB devices, the string contains the physical path to the device (the
USB controller, hubs, ports, etc). For Bluetooth devices, the string
contains the hardware (MAC) address of the device.
HIDIOCSFEATURE(len): Send a Feature Report
This ioctl will send a feature report to the device. Per the HID
specification, feature reports are always sent using the control endpoint.
Set the first byte of the supplied buffer to the report number. For devices
which do not use numbered reports, set the first byte to 0. The report data
begins in the second byte. Make sure to set len accordingly, to one more
than the length of the report (to account for the report number).
HIDIOCGFEATURE(len): Get a Feature Report
This ioctl will request a feature report from the device using the control
endpoint. The first byte of the supplied buffer should be set to the report
number of the requested report. For devices which do not use numbered
reports, set the first byte to 0. The report will be returned starting at
the first byte of the buffer (ie: the report number is not returned).
Example
---------
In samples/, find hid-example.c, which shows examples of read(), write(),
and all the ioctls for hidraw. The code may be used by anyone for any
purpose, and can serve as a starting point for developing applications using
hidraw.
Document by:
Alan Ott <alan@signal11.us>, Signal 11 Software

36
Documentation/hwmon/adm1021
View File

@ -14,10 +14,6 @@ Supported chips:
Prefix: 'gl523sm'
Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
Datasheet:
* Intel Xeon Processor
Prefix: - any other - may require 'force_adm1021' parameter
Addresses scanned: none
Datasheet: Publicly available at Intel website
* Maxim MAX1617
Prefix: 'max1617'
Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
@ -91,21 +87,27 @@ will do no harm, but will return 'old' values. It is possible to make
ADM1021-clones do faster measurements, but there is really no good reason
for that.
Xeon support
------------
Some Xeon processors have real max1617, adm1021, or compatible chips
within them, with two temperature sensors.
Netburst-based Xeon support
---------------------------
Other Xeons have chips with only one sensor.
Some Xeon processors based on the Netburst (early Pentium 4, from 2001 to
2003) microarchitecture had real MAX1617, ADM1021, or compatible chips
within them, with two temperature sensors. Other Xeon processors of this
era (with 400 MHz FSB) had chips with only one temperature sensor.
If you have a Xeon, and the adm1021 module loads, and both temperatures
appear valid, then things are good.
If you have such an old Xeon, and you get two valid temperatures when
loading the adm1021 module, then things are good.
If the adm1021 module doesn't load, you should try this:
modprobe adm1021 force_adm1021=BUS,ADDRESS
ADDRESS can only be 0x18, 0x1a, 0x29, 0x2b, 0x4c, or 0x4e.
If nothing happens when loading the adm1021 module, and you are certain
that your specific Xeon processor model includes compatible sensors, you
will have to explicitly instantiate the sensor chips from user-space. See
method 4 in Documentation/i2c/instantiating-devices. Possible slave
addresses are 0x18, 0x1a, 0x29, 0x2b, 0x4c, or 0x4e. It is likely that
only temp2 will be correct and temp1 will have to be ignored.
If you have dual Xeons you may have appear to have two separate
adm1021-compatible chips, or two single-temperature sensors, at distinct
addresses.
Previous generations of the Xeon processor (based on Pentium II/III)
didn't have these sensors. Next generations of Xeon processors (533 MHz
FSB and faster) lost them, until the Core-based generation which
introduced integrated digital thermal sensors. These are supported by
the coretemp driver.

60
Documentation/hwmon/adm1275 Normal file
View File

@ -0,0 +1,60 @@
Kernel driver adm1275
=====================
Supported chips:
* Analog Devices ADM1275
Prefix: 'adm1275'
Addresses scanned: -
Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf
Author: Guenter Roeck <guenter.roeck@ericsson.com>
Description
-----------
This driver supports hardware montoring for Analog Devices ADM1275 Hot-Swap
Controller and Digital Power Monitor.
The ADM1275 is a hot-swap controller that allows a circuit board to be removed
from or inserted into a live backplane. It also features current and voltage
readback via an integrated 12-bit analog-to-digital converter (ADC), accessed
using a PMBus. interface.
The driver is a client driver to the core PMBus driver. Please see
Documentation/hwmon/pmbus for details on PMBus client drivers.
Usage Notes
-----------
This driver does not auto-detect devices. You will have to instantiate the
devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
Platform data support
---------------------
The driver supports standard PMBus driver platform data. Please see
Documentation/hwmon/pmbus for details.
Sysfs entries
-------------
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
in1_label "vin1" or "vout1" depending on chip variant and
configuration.
in1_input Measured voltage. From READ_VOUT register.
in1_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register.
in1_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
in1_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
in1_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
curr1_label "iout1"
curr1_input Measured current. From READ_IOUT register.
curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register.
curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT register.

21
Documentation/hwmon/coretemp
View File

@ -15,8 +15,13 @@ Author: Rudolf Marek
Description
-----------
This driver permits reading the DTS (Digital Temperature Sensor) embedded
inside Intel CPUs. This driver can read both the per-core and per-package
temperature using the appropriate sensors. The per-package sensor is new;
as of now, it is present only in the SandyBridge platform. The driver will
show the temperature of all cores inside a package under a single device
directory inside hwmon.
This driver permits reading temperature sensor embedded inside Intel Core CPU.
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.
@ -27,13 +32,15 @@ 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:
temp1_input - Core temperature (in millidegrees Celsius).
temp1_max - All cooling devices should be turned on (on Core2).
temp1_crit - Maximum junction temperature (in millidegrees Celsius).
temp1_crit_alarm - Set when Out-of-spec bit is set, never clears.
All Sysfs entries are named with their core_id (represented here by 'X').
tempX_input - Core temperature (in millidegrees Celsius).
tempX_max - All cooling devices should be turned on (on Core2).
tempX_crit - Maximum junction temperature (in millidegrees Celsius).
tempX_crit_alarm - Set when Out-of-spec bit is set, never clears.
Correct CPU operation is no longer guaranteed.
temp1_label - Contains string "Core X", where X is processor
number.
tempX_label - Contains string "Core X", where X is processor
number. For Package temp, this will be "Physical id Y",
where Y is the package number.
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

29
Documentation/hwmon/lm90
View File

@ -32,6 +32,16 @@ Supported chips:
Addresses scanned: I2C 0x4c and 0x4d
Datasheet: Publicly available at the ON Semiconductor website
http://www.onsemi.com/PowerSolutions/product.do?id=ADT7461
* Analog Devices ADT7461A
Prefix: 'adt7461a'
Addresses scanned: I2C 0x4c and 0x4d
Datasheet: Publicly available at the ON Semiconductor website
http://www.onsemi.com/PowerSolutions/product.do?id=ADT7461A
* ON Semiconductor NCT1008
Prefix: 'nct1008'
Addresses scanned: I2C 0x4c and 0x4d
Datasheet: Publicly available at the ON Semiconductor website
http://www.onsemi.com/PowerSolutions/product.do?id=NCT1008
* Maxim MAX6646
Prefix: 'max6646'
Addresses scanned: I2C 0x4d
@ -149,7 +159,7 @@ ADM1032:
* ALERT is triggered by open remote sensor.
* SMBus PEC support for Write Byte and Receive Byte transactions.
ADT7461:
ADT7461, ADT7461A, NCT1008:
* Extended temperature range (breaks compatibility)
* Lower resolution for remote temperature
@ -195,9 +205,9 @@ are exported, one for each channel, but these values are of course linked.
Only the local hysteresis can be set from user-space, and the same delta
applies to the remote hysteresis.
The lm90 driver will not update its values more frequently than every
other second; reading them more often will do no harm, but will return
'old' values.
The lm90 driver will not update its values more frequently than configured with
the update_interval attribute; reading them more often will do no harm, but will
return 'old' values.
SMBus Alert Support
-------------------
@ -205,11 +215,12 @@ SMBus Alert Support
This driver has basic support for SMBus alert. When an alert is received,
the status register is read and the faulty temperature channel is logged.
The Analog Devices chips (ADM1032 and ADT7461) do not implement the SMBus
alert protocol properly so additional care is needed: the ALERT output is
disabled when an alert is received, and is re-enabled only when the alarm
is gone. Otherwise the chip would block alerts from other chips in the bus
as long as the alarm is active.
The Analog Devices chips (ADM1032, ADT7461 and ADT7461A) and ON
Semiconductor chips (NCT1008) do not implement the SMBus alert protocol
properly so additional care is needed: the ALERT output is disabled when
an alert is received, and is re-enabled only when the alarm is gone.
Otherwise the chip would block alerts from other chips in the bus as long
as the alarm is active.
PEC Support
-----------

62
Documentation/hwmon/max16064 Normal file
View File

@ -0,0 +1,62 @@
Kernel driver max16064
======================
Supported chips:
* Maxim MAX16064
Prefix: 'max16064'
Addresses scanned: -
Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX16064.pdf
Author: Guenter Roeck <guenter.roeck@ericsson.com>
Description
-----------
This driver supports hardware montoring for Maxim MAX16064 Quad Power-Supply
Controller with Active-Voltage Output Control and PMBus Interface.
The driver is a client driver to the core PMBus driver.
Please see Documentation/hwmon/pmbus for details on PMBus client drivers.
Usage Notes
-----------
This driver does not auto-detect devices. You will have to instantiate the
devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
Platform data support
---------------------
The driver supports standard PMBus driver platform data.
Sysfs entries
-------------
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
in[1-4]_label "vout[1-4]"
in[1-4]_input Measured voltage. From READ_VOUT register.
in[1-4]_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register.
in[1-4]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
in[1-4]_lcrit Critical minumum Voltage. VOUT_UV_FAULT_LIMIT register.
in[1-4]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
in[1-4]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
in[1-4]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
in[1-4]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
in[1-4]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
temp1_input Measured temperature. From READ_TEMPERATURE_1 register.
temp1_max Maximum temperature. From OT_WARN_LIMIT register.
temp1_crit Critical high temperature. From OT_FAULT_LIMIT register.
temp1_max_alarm Chip temperature high alarm. Set by comparing
READ_TEMPERATURE_1 with OT_WARN_LIMIT if TEMP_OT_WARNING
status is set.
temp1_crit_alarm Chip temperature critical high alarm. Set by comparing
READ_TEMPERATURE_1 with OT_FAULT_LIMIT if TEMP_OT_FAULT
status is set.

98
Documentation/hwmon/max16065 Normal file
View File

@ -0,0 +1,98 @@
Kernel driver max16065
======================
Supported chips:
* Maxim MAX16065, MAX16066
Prefixes: 'max16065', 'max16066'
Addresses scanned: -
Datasheet:
http://datasheets.maxim-ic.com/en/ds/MAX16065-MAX16066.pdf
* Maxim MAX16067
Prefix: 'max16067'
Addresses scanned: -
Datasheet:
http://datasheets.maxim-ic.com/en/ds/MAX16067.pdf
* Maxim MAX16068
Prefix: 'max16068'
Addresses scanned: -
Datasheet:
http://datasheets.maxim-ic.com/en/ds/MAX16068.pdf
* Maxim MAX16070/MAX16071
Prefixes: 'max16070', 'max16071'
Addresses scanned: -
Datasheet:
http://datasheets.maxim-ic.com/en/ds/MAX16070-MAX16071.pdf
Author: Guenter Roeck <guenter.roeck@ericsson.com>
Description
-----------
[From datasheets] The MAX16065/MAX16066 flash-configurable system managers
monitor and sequence multiple system voltages. The MAX16065/MAX16066 can also
accurately monitor (+/-2.5%) one current channel using a dedicated high-side
current-sense amplifier. The MAX16065 manages up to twelve system voltages
simultaneously, and the MAX16066 manages up to eight supply voltages.
The MAX16067 flash-configurable system manager monitors and sequences multiple
system voltages. The MAX16067 manages up to six system voltages simultaneously.
The MAX16068 flash-configurable system manager monitors and manages up to six
system voltages simultaneously.
The MAX16070/MAX16071 flash-configurable system monitors supervise multiple
system voltages. The MAX16070/MAX16071 can also accurately monitor (+/-2.5%)
one current channel using a dedicated high-side current-sense amplifier. The
MAX16070 monitors up to twelve system voltages simultaneously, and the MAX16071
monitors up to eight supply voltages.
Each monitored channel has its own low and high critical limits. MAX16065,
MAX16066, MAX16070, and MAX16071 support an additional limit which is
configurable as either low or high secondary limit. MAX16065, MAX16066,
MAX16070, and MAX16071 also support supply current monitoring.
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. Please see Documentation/i2c/instantiating-devices for
details.
Sysfs entries
-------------
in[0-11]_input Input voltage measurements.
in12_input Voltage on CSP (Current Sense Positive) pin.
Only if the chip supports current sensing and if
current sensing is enabled.
in[0-11]_min Low warning limit.
Supported on MAX16065, MAX16066, MAX16070, and MAX16071
only.
in[0-11]_max High warning limit.
Supported on MAX16065, MAX16066, MAX16070, and MAX16071
only.
Either low or high warning limits are supported
(depending on chip configuration), but not both.
in[0-11]_lcrit Low critical limit.
in[0-11]_crit High critical limit.
in[0-11]_alarm Input voltage alarm.
curr1_input Current sense input; only if the chip supports current
sensing and if current sensing is enabled.
Displayed current assumes 0.001 Ohm current sense
resistor.
curr1_alarm Overcurrent alarm; only if the chip supports current
sensing and if current sensing is enabled.

79
Documentation/hwmon/max34440 Normal file
View File

@ -0,0 +1,79 @@
Kernel driver max34440
======================
Supported chips:
* Maxim MAX34440
Prefixes: 'max34440'
Addresses scanned: -
Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34440.pdf
* Maxim MAX34441
PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller
Prefixes: 'max34441'
Addresses scanned: -
Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34441.pdf
Author: Guenter Roeck <guenter.roeck@ericsson.com>
Description
-----------
This driver supports hardware montoring for Maxim MAX34440 PMBus 6-Channel
Power-Supply Manager and MAX34441 PMBus 5-Channel Power-Supply Manager
and Intelligent Fan Controller.
The driver is a client driver to the core PMBus driver. Please see
Documentation/hwmon/pmbus for details on PMBus client drivers.
Usage Notes
-----------
This driver does not auto-detect devices. You will have to instantiate the
devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
Platform data support
---------------------
The driver supports standard PMBus driver platform data.
Sysfs entries
-------------
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
in[1-6]_label "vout[1-6]".
in[1-6]_input Measured voltage. From READ_VOUT register.
in[1-6]_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register.
in[1-6]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
in[1-6]_lcrit Critical minumum Voltage. VOUT_UV_FAULT_LIMIT register.
in[1-6]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
in[1-6]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
in[1-6]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
in[1-6]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
in[1-6]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
curr[1-6]_label "iout[1-6]".
curr[1-6]_input Measured current. From READ_IOUT register.
curr[1-6]_max Maximum current. From IOUT_OC_WARN_LIMIT register.
curr[1-6]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
curr[1-6]_max_alarm Current high alarm. From IOUT_OC_WARNING status.
curr[1-6]_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status.
in6 and curr6 attributes only exist for MAX34440.
temp[1-8]_input Measured temperatures. From READ_TEMPERATURE_1 register.
temp1 is the chip's internal temperature. temp2..temp5
are remote I2C temperature sensors. For MAX34441, temp6
is a remote thermal-diode sensor. For MAX34440, temp6..8
are remote I2C temperature sensors.
temp[1-8]_max Maximum temperature. From OT_WARN_LIMIT register.
temp[1-8]_crit Critical high temperature. From OT_FAULT_LIMIT register.
temp[1-8]_max_alarm Temperature high alarm.
temp[1-8]_crit_alarm Temperature critical high alarm.
temp7 and temp8 attributes only exist for MAX34440.

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Kernel driver max6642
=====================
Supported chips:
* Maxim MAX6642
Prefix: 'max6642'
Addresses scanned: I2C 0x48-0x4f
Datasheet: Publicly available at the Maxim website
http://datasheets.maxim-ic.com/en/ds/MAX6642.pdf
Authors:
Per Dalen <per.dalen@appeartv.com>
Description
-----------
The MAX6642 is a digital temperature sensor. It senses its own temperature as
well as the temperature on one external diode.
All temperature values are given in degrees Celsius. Resolution
is 0.25 degree for the local temperature and for the remote temperature.

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Kernel driver max8688
=====================
Supported chips:
* Maxim MAX8688
Prefix: 'max8688'
Addresses scanned: -
Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX8688.pdf
Author: Guenter Roeck <guenter.roeck@ericsson.com>
Description
-----------
This driver supports hardware montoring for Maxim MAX8688 Digital Power-Supply
Controller/Monitor with PMBus Interface.
The driver is a client driver to the core PMBus driver. Please see
Documentation/hwmon/pmbus for details on PMBus client drivers.
Usage Notes
-----------
This driver does not auto-detect devices. You will have to instantiate the
devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
Platform data support
---------------------
The driver supports standard PMBus driver platform data.
Sysfs entries
-------------
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
in1_label "vout1"
in1_input Measured voltage. From READ_VOUT register.
in1_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register.
in1_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
in1_lcrit Critical minumum Voltage. VOUT_UV_FAULT_LIMIT register.
in1_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
in1_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
in1_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
in1_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
in1_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
curr1_label "iout1"
curr1_input Measured current. From READ_IOUT register.
curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register.
curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT register.
curr1_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status.
temp1_input Measured temperature. From READ_TEMPERATURE_1 register.
temp1_max Maximum temperature. From OT_WARN_LIMIT register.
temp1_crit Critical high temperature. From OT_FAULT_LIMIT register.
temp1_max_alarm Chip temperature high alarm. Set by comparing
READ_TEMPERATURE_1 with OT_WARN_LIMIT if TEMP_OT_WARNING
status is set.
temp1_crit_alarm Chip temperature critical high alarm. Set by comparing
READ_TEMPERATURE_1 with OT_FAULT_LIMIT if TEMP_OT_FAULT
status is set.

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@ -1,36 +0,0 @@
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.

34
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@ -13,26 +13,6 @@ Supported chips:
Prefix: 'ltc2978'
Addresses scanned: -
Datasheet: http://cds.linear.com/docs/Datasheet/2978fa.pdf
* Maxim MAX16064
Quad Power-Supply Controller
Prefix: 'max16064'
Addresses scanned: -
Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX16064.pdf
* Maxim MAX34440
PMBus 6-Channel Power-Supply Manager
Prefixes: 'max34440'
Addresses scanned: -
Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34440.pdf
* Maxim MAX34441
PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller
Prefixes: 'max34441'
Addresses scanned: -
Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34441.pdf
* Maxim MAX8688
Digital Power-Supply Controller/Monitor
Prefix: 'max8688'
Addresses scanned: -
Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX8688.pdf
* Generic PMBus devices
Prefix: 'pmbus'
Addresses scanned: -
@ -175,11 +155,13 @@ currX_crit Critical maximum current.
From IIN_OC_FAULT_LIMIT or IOUT_OC_FAULT_LIMIT register.
currX_alarm Current high alarm.
From IIN_OC_WARNING or IOUT_OC_WARNING status.
currX_max_alarm Current high alarm.
From IIN_OC_WARN_LIMIT or IOUT_OC_WARN_LIMIT status.
currX_lcrit_alarm Output current critical low alarm.
From IOUT_UC_FAULT status.
currX_crit_alarm Current critical high alarm.
From IIN_OC_FAULT or IOUT_OC_FAULT status.
currX_label "iin" or "vinY"
currX_label "iin" or "ioutY"
powerX_input Measured power. From READ_PIN or READ_POUT register.
powerX_cap Output power cap. From POUT_MAX register.
@ -193,13 +175,13 @@ powerX_crit_alarm Output power critical high alarm.
From POUT_OP_FAULT status.
powerX_label "pin" or "poutY"
tempX_input Measured tempererature.
tempX_input Measured temperature.
From READ_TEMPERATURE_X register.
tempX_min Mimimum tempererature. From UT_WARN_LIMIT register.
tempX_max Maximum tempererature. From OT_WARN_LIMIT register.
tempX_lcrit Critical low tempererature.
tempX_min Mimimum temperature. From UT_WARN_LIMIT register.
tempX_max Maximum temperature. From OT_WARN_LIMIT register.
tempX_lcrit Critical low temperature.
From UT_FAULT_LIMIT register.
tempX_crit Critical high tempererature.
tempX_crit Critical high temperature.
From OT_FAULT_LIMIT register.
tempX_min_alarm Chip temperature low alarm. Set by comparing
READ_TEMPERATURE_X with UT_WARN_LIMIT if

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Kernel driver sht15
===================
Authors:
* Wouter Horre
* Jonathan Cameron
* Vivien Didelot <vivien.didelot@savoirfairelinux.com>
* Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Supported chips:
* Sensirion SHT10
Prefix: 'sht10'
* Sensirion SHT11
Prefix: 'sht11'
* Sensirion SHT15
Prefix: 'sht15'
* Sensirion SHT71
Prefix: 'sht71'
* Sensirion SHT75
Prefix: 'sht75'
Datasheet: Publicly available at the Sensirion website
http://www.sensirion.ch/en/pdf/product_information/Datasheet-humidity-sensor-SHT1x.pdf
Description
-----------
The SHT10, SHT11, SHT15, SHT71, and SHT75 are humidity and temperature
sensors.
The devices communicate using two GPIO lines.
Supported resolutions for the measurements are 14 bits for temperature and 12
bits for humidity, or 12 bits for temperature and 8 bits for humidity.
The humidity calibration coefficients are programmed into an OTP memory on the
chip. These coefficients are used to internally calibrate the signals from the
sensors. Disabling the reload of those coefficients allows saving 10ms for each
measurement and decrease power consumption, while loosing on precision.
Some options may be set directly in the sht15_platform_data structure
or via sysfs attributes.
Notes:
* The regulator supply name is set to "vcc".
* If a CRC validation fails, a soft reset command is sent, which resets
status register to its hardware default value, but the driver will try to
restore the previous device configuration.
Platform data
-------------
* checksum:
set it to true to enable CRC validation of the readings (default to false).
* no_otp_reload:
flag to indicate not to reload from OTP (default to false).
* low_resolution:
flag to indicate the temp/humidity resolution to use (default to false).
Sysfs interface
---------------
* temp1_input: temperature input
* humidity1_input: humidity input
* heater_enable: write 1 in this attribute to enable the on-chip heater,
0 to disable it. Be careful not to enable the heater
for too long.
* temp1_fault: if 1, this means that the voltage is low (below 2.47V) and
measurement may be invalid.
* humidity1_fault: same as temp1_fault.

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@ -150,8 +150,8 @@ 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_input Chip temperature
temp1_min Mimimum chip temperature
temp1_max Maximum chip temperature
temp1_crit Critical chip temperature
temp1_crit_alarm Temperature critical alarm

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How to Get Your Patch Accepted Into the Hwmon Subsystem
-------------------------------------------------------
This text is is a collection of suggestions for people writing patches or
drivers for the hwmon subsystem. Following these suggestions will greatly
increase the chances of your change being accepted.
1. General
----------
* It should be unnecessary to mention, but please read and follow
Documentation/SubmitChecklist
Documentation/SubmittingDrivers
Documentation/SubmittingPatches
Documentation/CodingStyle
* If your patch generates checkpatch warnings, please refrain from explanations
such as "I don't like that coding style". Keep in mind that each unnecessary
warning helps hiding a real problem. If you don't like the kernel coding
style, don't write kernel drivers.
* Please test your patch thoroughly. We are not your test group.
Sometimes a patch can not or not completely be tested because of missing
hardware. In such cases, you should test-build the code on at least one
architecture. If run-time testing was not achieved, it should be written
explicitly below the patch header.
* If your patch (or the driver) is affected by configuration options such as
CONFIG_SMP or CONFIG_HOTPLUG, make sure it compiles for all configuration
variants.
2. Adding functionality to existing drivers
-------------------------------------------
* Make sure the documentation in Documentation/hwmon/<driver_name> is up to
date.
* Make sure the information in Kconfig is up to date.
* If the added functionality requires some cleanup or structural changes, split
your patch into a cleanup part and the actual addition. This makes it easier
to review your changes, and to bisect any resulting problems.
* Never mix bug fixes, cleanup, and functional enhancements in a single patch.
3. New drivers
--------------
* Running your patch or driver file(s) through checkpatch does not mean its
formatting is clean. If unsure about formatting in your new driver, run it
through Lindent. Lindent is not perfect, and you may have to do some minor
cleanup, but it is a good start.
* Consider adding yourself to MAINTAINERS.
* Document the driver in Documentation/hwmon/<driver_name>.
* Add the driver to Kconfig and Makefile in alphabetical order.
* Make sure that all dependencies are listed in Kconfig. For new drivers, it
is most likely prudent to add a dependency on EXPERIMENTAL.
* Avoid forward declarations if you can. Rearrange the code if necessary.
* Avoid calculations in macros and macro-generated functions. While such macros
may save a line or so in the source, it obfuscates the code and makes code
review more difficult. It may also result in code which is more complicated
than necessary. Use inline functions or just regular functions instead.
* If the driver has a detect function, make sure it is silent. Debug messages
and messages printed after a successful detection are acceptable, but it
must not print messages such as "Chip XXX not found/supported".
Keep in mind that the detect function will run for all drivers supporting an
address if a chip is detected on that address. Unnecessary messages will just
pollute the kernel log and not provide any value.
* Provide a detect function if and only if a chip can be detected reliably.
* Avoid writing to chip registers in the detect function. If you have to write,
only do it after you have already gathered enough data to be certain that the
detection is going to be successful.
Keep in mind that the chip might not be what your driver believes it is, and
writing to it might cause a bad misconfiguration.
* Make sure there are no race conditions in the probe function. Specifically,
completely initialize your chip first, then create sysfs entries and register
with the hwmon subsystem.
* Do not provide support for deprecated sysfs attributes.
* Do not create non-standard attributes unless really needed. If you have to use
non-standard attributes, or you believe you do, discuss it on the mailing list
first. Either case, provide a detailed explanation why you need the
non-standard attribute(s).
Standard attributes are specified in Documentation/hwmon/sysfs-interface.
* When deciding which sysfs attributes to support, look at the chip's
capabilities. While we do not expect your driver to support everything the
chip may offer, it should at least support all limits and alarms.
* Last but not least, please check if a driver for your chip already exists
before starting to write a new driver. Especially for temperature sensors,
new chips are often variants of previously released chips. In some cases,
a presumably new chip may simply have been relabeled.

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Kernel driver ucd9000
=====================
Supported chips:
* TI UCD90120, UCD90124, UCD9090, and UCD90910
Prefixes: 'ucd90120', 'ucd90124', 'ucd9090', 'ucd90910'
Addresses scanned: -
Datasheets:
http://focus.ti.com/lit/ds/symlink/ucd90120.pdf
http://focus.ti.com/lit/ds/symlink/ucd90124.pdf
http://focus.ti.com/lit/ds/symlink/ucd9090.pdf
http://focus.ti.com/lit/ds/symlink/ucd90910.pdf
Author: Guenter Roeck <guenter.roeck@ericsson.com>
Description
-----------
From datasheets:
The UCD90120 Power Supply Sequencer and System Health Monitor monitors and
sequences up to 12 independent voltage rails. The device integrates a 12-bit
ADC with a 2.5V internal reference for monitoring up to 13 power supply voltage,
current, or temperature inputs.
The UCD90124 is a 12-rail PMBus/I2C addressable power-supply sequencer and
system-health monitor. The device integrates a 12-bit ADC for monitoring up to
13 power-supply voltage, current, or temperature inputs. Twenty-six GPIO pins
can be used for power supply enables, power-on reset signals, external
interrupts, cascading, or other system functions. Twelve of these pins offer PWM
functionality. Using these pins, the UCD90124 offers support for fan control,
margining, and general-purpose PWM functions.
The UCD9090 is a 10-rail PMBus/I2C addressable power-supply sequencer and
monitor. The device integrates a 12-bit ADC for monitoring up to 10 power-supply
voltage inputs. Twenty-three GPIO pins can be used for power supply enables,
power-on reset signals, external interrupts, cascading, or other system
functions. Ten of these pins offer PWM functionality. Using these pins, the
UCD9090 offers support for margining, and general-purpose PWM functions.
The UCD90910 is a ten-rail I2C / PMBus addressable power-supply sequencer and
system-health monitor. The device integrates a 12-bit ADC for monitoring up to
13 power-supply voltage, current, or temperature inputs.
This driver is a client driver to the core PMBus driver. Please see
Documentation/hwmon/pmbus for details on PMBus client drivers.
Usage Notes
-----------
This driver does not auto-detect devices. You will have to instantiate the
devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
Platform data support
---------------------
The driver supports standard PMBus driver platform data. Please see
Documentation/hwmon/pmbus for details.
Sysfs entries
-------------
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
in[1-12]_label "vout[1-12]".
in[1-12]_input Measured voltage. From READ_VOUT register.
in[1-12]_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register.
in[1-12]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
in[1-12]_lcrit Critical minumum Voltage. VOUT_UV_FAULT_LIMIT register.
in[1-12]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
in[1-12]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
in[1-12]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
in[1-12]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
in[1-12]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
curr[1-12]_label "iout[1-12]".
curr[1-12]_input Measured current. From READ_IOUT register.
curr[1-12]_max Maximum current. From IOUT_OC_WARN_LIMIT register.
curr[1-12]_lcrit Critical minumum output current. From IOUT_UC_FAULT_LIMIT
register.
curr[1-12]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
curr[1-12]_max_alarm Current high alarm. From IOUT_OC_WARNING status.
curr[1-12]_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status.
For each attribute index, either voltage or current is
reported, but not both. If voltage or current is
reported depends on the chip configuration.
temp[1-2]_input Measured temperatures. From READ_TEMPERATURE_1 and
READ_TEMPERATURE_2 registers.
temp[1-2]_max Maximum temperature. From OT_WARN_LIMIT register.
temp[1-2]_crit Critical high temperature. From OT_FAULT_LIMIT register.
temp[1-2]_max_alarm Temperature high alarm.
temp[1-2]_crit_alarm Temperature critical high alarm.
fan[1-4]_input Fan RPM.
fan[1-4]_alarm Fan alarm.
fan[1-4]_fault Fan fault.
Fan attributes are only available on chips supporting
fan control (UCD90124, UCD90910). Attribute files are
created only for enabled fans.
Note that even though UCD90910 supports up to 10 fans,
only up to four fans are currently supported.

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Kernel driver ucd9200
=====================
Supported chips:
* TI UCD9220, UCD9222, UCD9224, UCD9240, UCD9244, UCD9246, and UCD9248
Prefixes: 'ucd9220', 'ucd9222', 'ucd9224', 'ucd9240', 'ucd9244', 'ucd9246',
'ucd9248'
Addresses scanned: -
Datasheets:
http://focus.ti.com/lit/ds/symlink/ucd9220.pdf
http://focus.ti.com/lit/ds/symlink/ucd9222.pdf
http://focus.ti.com/lit/ds/symlink/ucd9224.pdf
http://focus.ti.com/lit/ds/symlink/ucd9240.pdf
http://focus.ti.com/lit/ds/symlink/ucd9244.pdf
http://focus.ti.com/lit/ds/symlink/ucd9246.pdf
http://focus.ti.com/lit/ds/symlink/ucd9248.pdf
Author: Guenter Roeck <guenter.roeck@ericsson.com>
Description
-----------
[From datasheets] UCD9220, UCD9222, UCD9224, UCD9240, UCD9244, UCD9246, and
UCD9248 are multi-rail, multi-phase synchronous buck digital PWM controllers
designed for non-isolated DC/DC power applications. The devices integrate
dedicated circuitry for DC/DC loop management with flash memory and a serial
interface to support configuration, monitoring and management.
This driver is a client driver to the core PMBus driver. Please see
Documentation/hwmon/pmbus for details on PMBus client drivers.
Usage Notes
-----------
This driver does not auto-detect devices. You will have to instantiate the
devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
Platform data support
---------------------
The driver supports standard PMBus driver platform data. Please see
Documentation/hwmon/pmbus for details.
Sysfs entries
-------------
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
in1_label "vin".
in1_input Measured voltage. From READ_VIN register.
in1_min Minumum Voltage. From VIN_UV_WARN_LIMIT register.
in1_max Maximum voltage. From VIN_OV_WARN_LIMIT register.
in1_lcrit Critical minumum Voltage. VIN_UV_FAULT_LIMIT register.
in1_crit Critical maximum voltage. From VIN_OV_FAULT_LIMIT register.
in1_min_alarm Voltage low alarm. From VIN_UV_WARNING status.
in1_max_alarm Voltage high alarm. From VIN_OV_WARNING status.
in1_lcrit_alarm Voltage critical low alarm. From VIN_UV_FAULT status.
in1_crit_alarm Voltage critical high alarm. From VIN_OV_FAULT status.
in[2-5]_label "vout[1-4]".
in[2-5]_input Measured voltage. From READ_VOUT register.
in[2-5]_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register.
in[2-5]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
in[2-5]_lcrit Critical minumum Voltage. VOUT_UV_FAULT_LIMIT register.
in[2-5]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
in[2-5]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
in[2-5]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
in[2-5]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
in[2-5]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
curr1_label "iin".
curr1_input Measured current. From READ_IIN register.
curr[2-5]_label "iout[1-4]".
curr[2-5]_input Measured current. From READ_IOUT register.
curr[2-5]_max Maximum current. From IOUT_OC_WARN_LIMIT register.
curr[2-5]_lcrit Critical minumum output current. From IOUT_UC_FAULT_LIMIT
register.
curr[2-5]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
curr[2-5]_max_alarm Current high alarm. From IOUT_OC_WARNING status.
curr[2-5]_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status.
power1_input Measured input power. From READ_PIN register.
power1_label "pin"
power[2-5]_input Measured output power. From READ_POUT register.
power[2-5]_label "pout[1-4]"
The number of output voltage, current, and power
attribute sets is determined by the number of enabled
rails. See chip datasheets for details.
temp[1-5]_input Measured temperatures. From READ_TEMPERATURE_1 and
READ_TEMPERATURE_2 registers.
temp1 is the chip internal temperature. temp[2-5] are
rail temperatures. temp[2-5] attributes are only
created for enabled rails. See chip datasheets for
details.
temp[1-5]_max Maximum temperature. From OT_WARN_LIMIT register.
temp[1-5]_crit Critical high temperature. From OT_FAULT_LIMIT register.
temp[1-5]_max_alarm Temperature high alarm.
temp[1-5]_crit_alarm Temperature critical high alarm.
fan1_input Fan RPM. ucd9240 only.
fan1_alarm Fan alarm. ucd9240 only.
fan1_fault Fan fault. ucd9240 only.

262
Documentation/input/event-codes.txt Normal file
View File

@ -0,0 +1,262 @@
The input protocol uses a map of types and codes to express input device values
to userspace. This document describes the types and codes and how and when they
may be used.
A single hardware event generates multiple input events. Each input event
contains the new value of a single data item. A special event type, EV_SYN, is
used to separate input events into packets of input data changes occurring at
the same moment in time. In the following, the term "event" refers to a single
input event encompassing a type, code, and value.
The input protocol is a stateful protocol. Events are emitted only when values
of event codes have changed. However, the state is maintained within the Linux
input subsystem; drivers do not need to maintain the state and may attempt to
emit unchanged values without harm. Userspace may obtain the current state of
event code values using the EVIOCG* ioctls defined in linux/input.h. The event
reports supported by a device are also provided by sysfs in
class/input/event*/device/capabilities/, and the properties of a device are
provided in class/input/event*/device/properties.
Types:
==========
Types are groupings of codes under a logical input construct. Each type has a
set of applicable codes to be used in generating events. See the Codes section
for details on valid codes for each type.
* EV_SYN:
- Used as markers to separate events. Events may be separated in time or in
space, such as with the multitouch protocol.
* EV_KEY:
- Used to describe state changes of keyboards, buttons, or other key-like
devices.
* EV_REL:
- Used to describe relative axis value changes, e.g. moving the mouse 5 units
to the left.
* EV_ABS:
- Used to describe absolute axis value changes, e.g. describing the
coordinates of a touch on a touchscreen.
* EV_MSC:
- Used to describe miscellaneous input data that do not fit into other types.
* EV_SW:
- Used to describe binary state input switches.
* EV_LED:
- Used to turn LEDs on devices on and off.
* EV_SND:
- Used to output sound to devices.
* EV_REP:
- Used for autorepeating devices.
* EV_FF:
- Used to send force feedback commands to an input device.
* EV_PWR:
- A special type for power button and switch input.
* EV_FF_STATUS:
- Used to receive force feedback device status.
Codes:
==========
Codes define the precise type of event.
EV_SYN:
----------
EV_SYN event values are undefined. Their usage is defined only by when they are
sent in the evdev event stream.
* SYN_REPORT:
- Used to synchronize and separate events into packets of input data changes
occurring at the same moment in time. For example, motion of a mouse may set
the REL_X and REL_Y values for one motion, then emit a SYN_REPORT. The next
motion will emit more REL_X and REL_Y values and send another SYN_REPORT.
* SYN_CONFIG:
- TBD
* SYN_MT_REPORT:
- Used to synchronize and separate touch events. See the
multi-touch-protocol.txt document for more information.
* SYN_DROPPED:
- Used to indicate buffer overrun in the evdev client's event queue.
Client should ignore all events up to and including next SYN_REPORT
event and query the device (using EVIOCG* ioctls) to obtain its
current state.
EV_KEY:
----------
EV_KEY events take the form KEY_<name> or BTN_<name>. For example, KEY_A is used
to represent the 'A' key on a keyboard. When a key is depressed, an event with
the key's code is emitted with value 1. When the key is released, an event is
emitted with value 0. Some hardware send events when a key is repeated. These
events have a value of 2. In general, KEY_<name> is used for keyboard keys, and
BTN_<name> is used for other types of momentary switch events.
A few EV_KEY codes have special meanings:
* BTN_TOOL_<name>:
- These codes are used in conjunction with input trackpads, tablets, and
touchscreens. These devices may be used with fingers, pens, or other tools.
When an event occurs and a tool is used, the corresponding BTN_TOOL_<name>
code should be set to a value of 1. When the tool is no longer interacting
with the input device, the BTN_TOOL_<name> code should be reset to 0. All
trackpads, tablets, and touchscreens should use at least one BTN_TOOL_<name>
code when events are generated.
* BTN_TOUCH:
BTN_TOUCH is used for touch contact. While an input tool is determined to be
within meaningful physical contact, the value of this property must be set
to 1. Meaningful physical contact may mean any contact, or it may mean
contact conditioned by an implementation defined property. For example, a
touchpad may set the value to 1 only when the touch pressure rises above a
certain value. BTN_TOUCH may be combined with BTN_TOOL_<name> codes. For
example, a pen tablet may set BTN_TOOL_PEN to 1 and BTN_TOUCH to 0 while the
pen is hovering over but not touching the tablet surface.
Note: For appropriate function of the legacy mousedev emulation driver,
BTN_TOUCH must be the first evdev code emitted in a synchronization frame.
Note: Historically a touch device with BTN_TOOL_FINGER and BTN_TOUCH was
interpreted as a touchpad by userspace, while a similar device without
BTN_TOOL_FINGER was interpreted as a touchscreen. For backwards compatibility
with current userspace it is recommended to follow this distinction. In the
future, this distinction will be deprecated and the device properties ioctl
EVIOCGPROP, defined in linux/input.h, will be used to convey the device type.
* BTN_TOOL_FINGER, BTN_TOOL_DOUBLETAP, BTN_TOOL_TRIPLETAP, BTN_TOOL_QUADTAP:
- These codes denote one, two, three, and four finger interaction on a
trackpad or touchscreen. For example, if the user uses two fingers and moves
them on the touchpad in an effort to scroll content on screen,
BTN_TOOL_DOUBLETAP should be set to value 1 for the duration of the motion.
Note that all BTN_TOOL_<name> codes and the BTN_TOUCH code are orthogonal in
purpose. A trackpad event generated by finger touches should generate events
for one code from each group. At most only one of these BTN_TOOL_<name>
codes should have a value of 1 during any synchronization frame.
Note: Historically some drivers emitted multiple of the finger count codes with
a value of 1 in the same synchronization frame. This usage is deprecated.
Note: In multitouch drivers, the input_mt_report_finger_count() function should
be used to emit these codes. Please see multi-touch-protocol.txt for details.
EV_REL:
----------
EV_REL events describe relative changes in a property. For example, a mouse may
move to the left by a certain number of units, but its absolute position in
space is unknown. If the absolute position is known, EV_ABS codes should be used
instead of EV_REL codes.
A few EV_REL codes have special meanings:
* REL_WHEEL, REL_HWHEEL:
- These codes are used for vertical and horizontal scroll wheels,
respectively.
EV_ABS:
----------
EV_ABS events describe absolute changes in a property. For example, a touchpad
may emit coordinates for a touch location.
A few EV_ABS codes have special meanings:
* ABS_DISTANCE:
- Used to describe the distance of a tool from an interaction surface. This
event should only be emitted while the tool is hovering, meaning in close
proximity of the device and while the value of the BTN_TOUCH code is 0. If
the input device may be used freely in three dimensions, consider ABS_Z
instead.
* ABS_MT_<name>:
- Used to describe multitouch input events. Please see
multi-touch-protocol.txt for details.
EV_SW:
----------
EV_SW events describe stateful binary switches. For example, the SW_LID code is
used to denote when a laptop lid is closed.
Upon binding to a device or resuming from suspend, a driver must report
the current switch state. This ensures that the device, kernel, and userspace
state is in sync.
Upon resume, if the switch state is the same as before suspend, then the input
subsystem will filter out the duplicate switch state reports. The driver does
not need to keep the state of the switch at any time.
EV_MSC:
----------
EV_MSC events are used for input and output events that do not fall under other
categories.
EV_LED:
----------
EV_LED events are used for input and output to set and query the state of
various LEDs on devices.
EV_REP:
----------
EV_REP events are used for specifying autorepeating events.
EV_SND:
----------
EV_SND events are used for sending sound commands to simple sound output
devices.
EV_FF:
----------
EV_FF events are used to initialize a force feedback capable device and to cause
such device to feedback.
EV_PWR:
----------
EV_PWR events are a special type of event used specifically for power
mangement. Its usage is not well defined. To be addressed later.
Guidelines:
==========
The guidelines below ensure proper single-touch and multi-finger functionality.
For multi-touch functionality, see the multi-touch-protocol.txt document for
more information.
Mice:
----------
REL_{X,Y} must be reported when the mouse moves. BTN_LEFT must be used to report
the primary button press. BTN_{MIDDLE,RIGHT,4,5,etc.} should be used to report
further buttons of the device. REL_WHEEL and REL_HWHEEL should be used to report
scroll wheel events where available.
Touchscreens:
----------
ABS_{X,Y} must be reported with the location of the touch. BTN_TOUCH must be
used to report when a touch is active on the screen.
BTN_{MOUSE,LEFT,MIDDLE,RIGHT} must not be reported as the result of touch
contact. BTN_TOOL_<name> events should be reported where possible.
Trackpads:
----------
Legacy trackpads that only provide relative position information must report
events like mice described above.
Trackpads that provide absolute touch position must report ABS_{X,Y} for the
location of the touch. BTN_TOUCH should be used to report when a touch is active
on the trackpad. Where multi-finger support is available, BTN_TOOL_<name> should
be used to report the number of touches active on the trackpad.
Tablets:
----------
BTN_TOOL_<name> events must be reported when a stylus or other tool is active on
the tablet. ABS_{X,Y} must be reported with the location of the tool. BTN_TOUCH
should be used to report when the tool is in contact with the tablet.
BTN_{STYLUS,STYLUS2} should be used to report buttons on the tool itself. Any
button may be used for buttons on the tablet except BTN_{MOUSE,LEFT}.
BTN_{0,1,2,etc} are good generic codes for unlabeled buttons. Do not use
meaningful buttons, like BTN_FORWARD, unless the button is labeled for that
purpose on the device.

121
Documentation/ja_JP/HOWTO
View File

@ -11,14 +11,14 @@ for non English (read: Japanese) speakers and is not intended as a
fork. So if you have any comments or updates for this file, please try
to update the original English file first.
Last Updated: 2008/10/24
Last Updated: 2011/03/31
==================================
これは、
linux-2.6.28/Documentation/HOWTO
linux-2.6.38/Documentation/HOWTO
の和訳です。
翻訳団体： JF プロジェクト < http://www.linux.or.jp/JF/ >
翻訳日： 2008/10/24
翻訳日： 2011/3/28
翻訳者： Tsugikazu Shibata <tshibata at ab dot jp dot nec dot com>
校正者： 松倉さん <nbh--mats at nifty dot com>
小林 雅典さん (Masanori Kobayasi) <zap03216 at nifty dot ne dot jp>
@ -256,8 +256,8 @@ Linux カーネルの開発プロセスは現在幾つかの異なるメイン
- メインの 2.6.x カーネルツリー
- 2.6.x.y -stable カーネルツリー
- 2.6.x -git カーネルパッチ
- 2.6.x -mm カーネルパッチ
- サブシステム毎のカーネルツリーとパッチ
- 統合テストのための 2.6.x -next カーネルツリー
2.6.x カーネルツリー
-----------------
@ -268,9 +268,9 @@ Linux カーネルの開発プロセスは現在幾つかの異なるメイン
- 新しいカーネルがリリースされた直後に、2週間の特別期間が設けられ、
この期間中に、メンテナ達は Linus に大きな差分を送ることができます。
このような差分は通常 -mm カーネルに数週間含まれてきたパッチです。
このような差分は通常 -next カーネルに数週間含まれてきたパッチです。
大きな変更は git(カーネルのソース管理ツール、詳細は
http://git.or.cz/ 参照) を使って送るのが好ましいやり方ですが、パッ
http://git-scm.com/ 参照) を使って送るのが好ましいやり方ですが、パッ
チファイルの形式のまま送るのでも十分です。
- 2週間後、-rc1 カーネルがリリースされ、この後にはカーネル全体の安定
@ -333,86 +333,44 @@ git リポジトリで管理されているLinus のカーネルツリーの毎
れは -rc カーネルと比べて、パッチが大丈夫かどうかも確認しないで自動的
に生成されるので、より実験的です。
2.6.x -mm カーネルパッチ
------------------------
Andrew Morton によってリリースされる実験的なカーネルパッチ群です。
Andrew は個別のサブシステムカーネルツリーとパッチを全て集めてきて
linux-kernel メーリングリストで収集された多数のパッチと同時に一つにま
とめます。
このツリーは新機能とパッチが検証される場となります。ある期間の間パッチ
が -mm に入って価値を証明されたら、Andrew やサブシステムメンテナが、
メインラインへ入れるように Linus にプッシュします。
メインカーネルツリーに含めるために Linus に送る前に、すべての新しいパッ
チが -mm ツリーでテストされることが強く推奨されています。マージウィン
ドウが開く前に -mm ツリーに現れなかったパッチはメインラインにマージさ
れることは困難になります。
これらのカーネルは安定して動作すべきシステムとして使うのには適切ではあ
りませんし、カーネルブランチの中でももっとも動作にリスクが高いものです。
もしあなたが、カーネル開発プロセスの支援をしたいと思っているのであれば、
どうぞこれらのカーネルリリースをテストに使ってみて、そしてもし問題があ
れば、またもし全てが正しく動作したとしても、linux-kernel メーリングリ
ストにフィードバックを提供してください。
すべての他の実験的パッチに加えて、これらのカーネルは通常リリース時点で
メインラインの -git カーネルに含まれる全ての変更も含んでいます。
-mm カーネルは決まったスケジュールではリリースされません、しかし通常幾
つかの -mm カーネル (1 から 3 が普通）が各-rc カーネルの間にリリースさ
れます。
サブシステム毎のカーネルツリーとパッチ
-------------------------------------------
カーネルの様々な領域で何が起きているかを見られるようにするため、多くの
カーネルサブシステム開発者は彼らの開発ツリーを公開しています。これらの
ツリーは説明したように -mm カーネルリリースに入れ込まれます。
それぞれのカーネルサブシステムのメンテナ達は --- そして多くのカーネル
サブシステムの開発者達も --- 各自の最新の開発状況をソースリポジトリに
公開しています。そのため、自分とは異なる領域のカーネルで何が起きている
かを他の人が見られるようになっています。開発が早く進んでいる領域では、
開発者は自身の投稿がどのサブシステムカーネルツリーを元にしているか質問
されるので、その投稿とすでに進行中の他の作業との衝突が避けられます。
以下はさまざまなカーネルツリーの中のいくつかのリスト-
大部分のこれらのリポジトリは git ツリーです。しかしその他の SCM や
quilt シリーズとして公開されているパッチキューも使われています。これら
のサブシステムリポジトリのアドレスは MAINTAINERS ファイルにリストされ
ています。これらの多くは http://git.kernel.org/ で参照することができま
す。
git ツリー-
- Kbuild の開発ツリー、Sam Ravnborg <sam@ravnborg.org>
git.kernel.org:/pub/scm/linux/kernel/git/sam/kbuild.git
提案されたパッチがこのようなサブシステムツリーにコミットされる前に、メー
リングリストで事前にレビューにかけられます（以下の対応するセクションを
参照）。いくつかのカーネルサブシステムでは、このレビューは patchwork
というツールによって追跡されます。Patchwork は web インターフェイスに
よってパッチ投稿の表示、パッチへのコメント付けや改訂などができ、そして
メンテナはパッチに対して、レビュー中、受付済み、拒否というようなマーク
をつけることができます。大部分のこれらの patchwork のサイトは
http://patchwork.kernel.org/ でリストされています。
- ACPI の開発ツリー、 Len Brown <len.brown@intel.com>
git.kernel.org:/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git
統合テストのための 2.6.x -next カーネルツリー
---------------------------------------------
- Block の開発ツリー、Jens Axboe <axboe@suse.de>
git.kernel.org:/pub/scm/linux/kernel/git/axboe/linux-2.6-block.git
サブシステムツリーの更新内容がメインラインの 2.6.x ツリーにマージされ
る前に、それらは統合テストされる必要があります。この目的のため、実質的
に全サブシステムツリーからほぼ毎日プルされてできる特別なテスト用のリ
ポジトリが存在します-
http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git
http://linux.f-seidel.de/linux-next/pmwiki/
- DRM の開発ツリー、Dave Airlie <airlied@linux.ie>
git.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6.git
- ia64 の開発ツリー、Tony Luck <tony.luck@intel.com>
git.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6.git
- infiniband, Roland Dreier <rolandd@cisco.com>
git.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband.git
- libata, Jeff Garzik <jgarzik@pobox.com>
git.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git
- ネットワークドライバ, Jeff Garzik <jgarzik@pobox.com>
git.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git
- pcmcia, Dominik Brodowski <linux@dominikbrodowski.net>
git.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6.git
- SCSI, James Bottomley <James.Bottomley@hansenpartnership.com>
git.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git
- x86, Ingo Molnar <mingo@elte.hu>
git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
quilt ツリー-
- USB, ドライバコアと I2C, Greg Kroah-Hartman <gregkh@suse.de>
kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
その他のカーネルツリーは http://git.kernel.org/ と MAINTAINERS ファ
イルに一覧表があります。
このやり方によって、-next カーネルは次のマージ機会でどんなものがメイン
ラインカーネルにマージされるか、おおまかなの展望を提供します。-next
カーネルの実行テストを行う冒険好きなテスターは大いに歓迎されます
バグレポート
-------------
@ -673,10 +631,9 @@ Linux カーネルコミュニティは、一度に大量のコードの塊を
じところからスタートしたのですから。
Paolo Ciarrocchi に感謝、彼は彼の書いた "Development Process"
(http://linux.tar.bz/articles/2.6-development_process)セクショ
ンをこのテキストの原型にすることを許可してくれました。
Rundy Dunlap と Gerrit Huizenga はメーリングリストでやるべきこととやっ
てはいけないことのリストを提供してくれました。
(http://lwn.net/Articles/94386/) セクションをこのテキストの原型にする
ことを許可してくれました。Rundy Dunlap と Gerrit Huizenga はメーリング
リストでやるべきこととやってはいけないことのリストを提供してくれました。
以下の人々のレビュー、コメント、貢献に感謝。
Pat Mochel, Hanna Linder, Randy Dunlap, Kay Sievers,
Vojtech Pavlik, Jan Kara, Josh Boyer, Kees Cook, Andrew Morton, Andi

10
Documentation/kernel-parameters.txt
View File

@ -245,7 +245,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
acpi_sleep= [HW,ACPI] Sleep options
Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig,
old_ordering, s4_nonvs, sci_force_enable }
old_ordering, nonvs, sci_force_enable }
See Documentation/power/video.txt for information on
s3_bios and s3_mode.
s3_beep is for debugging; it makes the PC's speaker beep
@ -1664,6 +1664,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
noexec=on: enable non-executable mappings (default)
noexec=off: disable non-executable mappings
nosmep [X86]
Disable SMEP (Supervisor Mode Execution Protection)
even if it is supported by processor.
noexec32 [X86-64]
This affects only 32-bit executables.
noexec32=on: enable non-executable mappings (default)
@ -2581,6 +2585,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
bytes of sense data);
c = FIX_CAPACITY (decrease the reported
device capacity by one sector);
d = NO_READ_DISC_INFO (don't use
READ_DISC_INFO command);
e = NO_READ_CAPACITY_16 (don't use
READ_CAPACITY_16 command);
h = CAPACITY_HEURISTICS (decrease the
reported device capacity by one
sector if the number is odd);

10
Documentation/md.txt
View File

@ -552,6 +552,16 @@ also have
within the array where IO will be blocked. This is currently
only supported for raid4/5/6.
sync_min
sync_max
The two values, given as numbers of sectors, indicate a range
withing the array where 'check'/'repair' will operate. Must be
a multiple of chunk_size. When it reaches "sync_max" it will
pause, rather than complete.
You can use 'select' or 'poll' on "sync_completed" to wait for
that number to reach sync_max. Then you can either increase
"sync_max", or can write 'idle' to "sync_action".
Each active md device may also have attributes specific to the
personality module that manages it.

11
Documentation/networking/batman-adv.txt
View File

@ -1,4 +1,4 @@
[state: 27-01-2011]
[state: 17-04-2011]
BATMAN-ADV
----------
@ -19,6 +19,7 @@ duce the overhead to a minimum. It does not depend on any (other)
network driver, and can be used on wifi as well as ethernet lan,
vpn, etc ... (anything with ethernet-style layer 2).
CONFIGURATION
-------------
@ -160,13 +161,13 @@ face. Each entry can/has to have the following values:
-> "TQ mac value" - src mac's link quality towards mac address
of a neighbor originator's interface which
is being used for routing
-> "HNA mac" - HNA announced by source mac
-> "TT mac" - TT announced by source mac
-> "PRIMARY" - this is a primary interface
-> "SEC mac" - secondary mac address of source
(requires preceding PRIMARY)
The TQ value has a range from 4 to 255 with 255 being the best.
The HNA entries are showing which hosts are connected to the mesh
The TT entries are showing which hosts are connected to the mesh
via bat0 or being bridged into the mesh network. The PRIMARY/SEC
values are only applied on primary interfaces
@ -199,7 +200,7 @@ abled during run time. Following log_levels are defined:
0 - All debug output disabled
1 - Enable messages related to routing / flooding / broadcasting
2 - Enable route or hna added / changed / deleted
2 - Enable route or tt entry added / changed / deleted
3 - Enable all messages
The debug output can be changed at runtime using the file
@ -207,7 +208,7 @@ The debug output can be changed at runtime using the file
# echo 2 > /sys/class/net/bat0/mesh/log_level
will enable debug messages for when routes or HNAs change.
will enable debug messages for when routes or TTs change.
BATCTL

32
Documentation/networking/bonding.txt
View File

@ -1,7 +1,7 @@
Linux Ethernet Bonding Driver HOWTO
Latest update: 23 September 2009
Latest update: 27 April 2011
Initial release : Thomas Davis <tadavis at lbl.gov>
Corrections, HA extensions : 2000/10/03-15 :
@ -585,25 +585,23 @@ mode
chosen.
num_grat_arp
Specifies the number of gratuitous ARPs to be issued after a
failover event. One gratuitous ARP is issued immediately after
the failover, subsequent ARPs are sent at a rate of one per link
monitor interval (arp_interval or miimon, whichever is active).
The valid range is 0 - 255; the default value is 1. This option
affects only the active-backup mode. This option was added for
bonding version 3.3.0.
num_unsol_na
Specifies the number of unsolicited IPv6 Neighbor Advertisements
to be issued after a failover event. One unsolicited NA is issued
immediately after the failover.
Specify the number of peer notifications (gratuitous ARPs and
unsolicited IPv6 Neighbor Advertisements) to be issued after a
failover event. As soon as the link is up on the new slave
(possibly immediately) a peer notification is sent on the
bonding device and each VLAN sub-device. This is repeated at
each link monitor interval (arp_interval or miimon, whichever
is active) if the number is greater than 1.
The valid range is 0 - 255; the default value is 1. This option
affects only the active-backup mode. This option was added for
bonding version 3.4.0.
The valid range is 0 - 255; the default value is 1. These options
affect only the active-backup mode. These options were added for
bonding versions 3.3.0 and 3.4.0 respectively.
From Linux 2.6.40 and bonding version 3.7.1, these notifications
are generated by the ipv4 and ipv6 code and the numbers of
repetitions cannot be set independently.
primary

13
Documentation/networking/igb.txt
View File

@ -93,6 +93,19 @@ Additional Configurations
REQUIREMENTS: MSI-X support is required for Multiqueue. If MSI-X is not
found, the system will fallback to MSI or to Legacy interrupts.
MAC and VLAN anti-spoofing feature
----------------------------------
When a malicious driver attempts to send a spoofed packet, it is dropped by
the hardware and not transmitted. An interrupt is sent to the PF driver
notifying it of the spoof attempt.
When a spoofed packet is detected the PF driver will send the following
message to the system log (displayed by the "dmesg" command):
Spoof event(s) detected on VF(n)
Where n=the VF that attempted to do the spoofing.
Support
=======

14
Documentation/power/devices.txt
View File

@ -279,11 +279,15 @@ When the system goes into the standby or memory sleep state, the phases are:
time.) Unlike the other suspend-related phases, during the prepare
phase the device tree is traversed top-down.
The prepare phase uses only a bus callback. After the callback method
returns, no new children may be registered below the device. The method
may also prepare the device or driver in some way for the upcoming
system power transition, but it should not put the device into a
low-power state.
In addition to that, if device drivers need to allocate additional
memory to be able to hadle device suspend correctly, that should be
done in the prepare phase.
After the prepare callback method returns, no new children may be
registered below the device. The method may also prepare the device or
driver in some way for the upcoming system power transition (for
example, by allocating additional memory required for this purpose), but
it should not put the device into a low-power state.
2. The suspend methods should quiesce the device to stop it from performing
I/O. They also may save the device registers and put it into the

47
Documentation/power/notifiers.txt
View File

@ -1,46 +1,41 @@
Suspend notifiers
(C) 2007 Rafael J. Wysocki <rjw@sisk.pl>, GPL
(C) 2007-2011 Rafael J. Wysocki <rjw@sisk.pl>, GPL
There are some operations that device drivers may want to carry out in their
.suspend() routines, but shouldn't, because they can cause the hibernation or
suspend to fail. For example, a driver may want to allocate a substantial amount
of memory (like 50 MB) in .suspend(), but that shouldn't be done after the
swsusp's memory shrinker has run.
There are some operations that subsystems or drivers may want to carry out
before hibernation/suspend or after restore/resume, but they require the system
to be fully functional, so the drivers' and subsystems' .suspend() and .resume()
or even .prepare() and .complete() callbacks are not suitable for this purpose.
For example, device drivers may want to upload firmware to their devices after
resume/restore, but they cannot do it by calling request_firmware() from their
.resume() or .complete() routines (user land processes are frozen at these
points). The solution may be to load the firmware into memory before processes
are frozen and upload it from there in the .resume() routine.
A suspend/hibernation notifier may be used for this purpose.
Also, there may be some operations, that subsystems want to carry out before a
hibernation/suspend or after a restore/resume, requiring the system to be fully
functional, so the drivers' .suspend() and .resume() routines are not suitable
for this purpose. For example, device drivers may want to upload firmware to
their devices after a restore from a hibernation image, but they cannot do it by
calling request_firmware() from their .resume() routines (user land processes
are frozen at this point). The solution may be to load the firmware into
memory before processes are frozen and upload it from there in the .resume()
routine. Of course, a hibernation notifier may be used for this purpose.
The subsystems that have such needs can register suspend notifiers that will be
called upon the following events by the suspend core:
The subsystems or drivers having such needs can register suspend notifiers that
will be called upon the following events by the PM core:
PM_HIBERNATION_PREPARE The system is going to hibernate or suspend, tasks will
be frozen immediately.
PM_POST_HIBERNATION The system memory state has been restored from a
hibernation image or an error occurred during the
hibernation. Device drivers' .resume() callbacks have
hibernation image or an error occurred during
hibernation. Device drivers' restore callbacks have
been executed and tasks have been thawed.
PM_RESTORE_PREPARE The system is going to restore a hibernation image.
If all goes well the restored kernel will issue a
If all goes well, the restored kernel will issue a
PM_POST_HIBERNATION notification.
PM_POST_RESTORE An error occurred during the hibernation restore.
Device drivers' .resume() callbacks have been executed
PM_POST_RESTORE An error occurred during restore from hibernation.
Device drivers' restore callbacks have been executed
and tasks have been thawed.
PM_SUSPEND_PREPARE The system is preparing for a suspend.
PM_SUSPEND_PREPARE The system is preparing for suspend.
PM_POST_SUSPEND The system has just resumed or an error occurred during
the suspend. Device drivers' .resume() callbacks have
been executed and tasks have been thawed.
suspend. Device drivers' resume callbacks have been
executed and tasks have been thawed.
It is generally assumed that whatever the notifiers do for
PM_HIBERNATION_PREPARE, should be undone for PM_POST_HIBERNATION. Analogously,

99
Documentation/pti/pti_intel_mid.txt Normal file
View File

@ -0,0 +1,99 @@
The Intel MID PTI project is HW implemented in Intel Atom
system-on-a-chip designs based on the Parallel Trace
Interface for MIPI P1149.7 cJTAG standard. The kernel solution
for this platform involves the following files:
./include/linux/pti.h
./drivers/.../n_tracesink.h
./drivers/.../n_tracerouter.c
./drivers/.../n_tracesink.c
./drivers/.../pti.c
pti.c is the driver that enables various debugging features
popular on platforms from certain mobile manufacturers.
n_tracerouter.c and n_tracesink.c allow extra system information to
be collected and routed to the pti driver, such as trace
debugging data from a modem. Although n_tracerouter
and n_tracesink are a part of the complete PTI solution,
these two line disciplines can work separately from
pti.c and route any data stream from one /dev/tty node
to another /dev/tty node via kernel-space. This provides
a stable, reliable connection that will not break unless
the user-space application shuts down (plus avoids
kernel->user->kernel context switch overheads of routing
data).
An example debugging usage for this driver system:
*Hook /dev/ttyPTI0 to syslogd. Opening this port will also start
a console device to further capture debugging messages to PTI.
*Hook /dev/ttyPTI1 to modem debugging data to write to PTI HW.
This is where n_tracerouter and n_tracesink are used.
*Hook /dev/pti to a user-level debugging application for writing
to PTI HW.
*Use mipi_* Kernel Driver API in other device drivers for
debugging to PTI by first requesting a PTI write address via
mipi_request_masterchannel(1).
Below is example pseudo-code on how a 'privileged' application
can hook up n_tracerouter and n_tracesink to any tty on
a system. 'Privileged' means the application has enough
privileges to successfully manipulate the ldisc drivers
but is not just blindly executing as 'root'. Keep in mind
the use of ioctl(,TIOCSETD,) is not specific to the n_tracerouter
and n_tracesink line discpline drivers but is a generic
operation for a program to use a line discpline driver
on a tty port other than the default n_tty.
/////////// To hook up n_tracerouter and n_tracesink /////////
// Note that n_tracerouter depends on n_tracesink.
#include <errno.h>
#define ONE_TTY "/dev/ttyOne"
#define TWO_TTY "/dev/ttyTwo"
// needed global to hand onto ldisc connection
static int g_fd_source = -1;
static int g_fd_sink = -1;
// these two vars used to grab LDISC values from loaded ldisc drivers
// in OS. Look at /proc/tty/ldiscs to get the right numbers from
// the ldiscs loaded in the system.
int source_ldisc_num, sink_ldisc_num = -1;
int retval;
g_fd_source = open(ONE_TTY, O_RDWR); // must be R/W
g_fd_sink = open(TWO_TTY, O_RDWR); // must be R/W
if (g_fd_source <= 0) || (g_fd_sink <= 0) {
// doubt you'll want to use these exact error lines of code
printf("Error on open(). errno: %d\n",errno);
return errno;
}
retval = ioctl(g_fd_sink, TIOCSETD, &sink_ldisc_num);
if (retval < 0) {
printf("Error on ioctl(). errno: %d\n", errno);
return errno;
}
retval = ioctl(g_fd_source, TIOCSETD, &source_ldisc_num);
if (retval < 0) {
printf("Error on ioctl(). errno: %d\n", errno);
return errno;
}
/////////// To disconnect n_tracerouter and n_tracesink ////////
// First make sure data through the ldiscs has stopped.
// Second, disconnect ldiscs. This provides a
// little cleaner shutdown on tty stack.
sink_ldisc_num = 0;
source_ldisc_num = 0;
ioctl(g_fd_uart, TIOCSETD, &sink_ldisc_num);
ioctl(g_fd_gadget, TIOCSETD, &source_ldisc_num);
// Three, program closes connection, and cleanup:
close(g_fd_uart);
close(g_fd_gadget);
g_fd_uart = g_fd_gadget = NULL;

292
Documentation/scsi/LICENSE.qla2xxx
View File

@ -1,11 +1,11 @@
Copyright (c) 2003-2005 QLogic Corporation
QLogic Linux Fibre Channel HBA Driver
Copyright (c) 2003-2011 QLogic Corporation
QLogic Linux/ESX Fibre Channel HBA Driver
This program includes a device driver for Linux 2.6 that may be
This program includes a device driver for Linux 2.6/ESX that may be
distributed with QLogic hardware specific firmware binary file.
You may modify and redistribute the device driver code under the
GNU General Public License as published by the Free Software
Foundation (version 2 or a later version).
GNU General Public License (a copy of which is attached hereto as
Exhibit A) published by the Free Software Foundation (version 2).
You may redistribute the hardware specific firmware binary file
under the following terms:
@ -43,3 +43,285 @@ OTHERWISE IN ANY INTELLECTUAL PROPERTY RIGHTS (PATENT, COPYRIGHT,
TRADE SECRET, MASK WORK, OR OTHER PROPRIETARY RIGHT) EMBODIED IN
ANY OTHER QLOGIC HARDWARE OR SOFTWARE EITHER SOLELY OR IN
COMBINATION WITH THIS PROGRAM.
EXHIBIT A
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
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License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
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When we speak of free software, we are referring to freedom, not
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To protect your rights, we need to make restrictions that forbid
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The precise terms and conditions for copying, distribution and
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7
Documentation/sound/alsa/ALSA-Configuration.txt
View File

@ -1230,6 +1230,13 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
This module supports multiple cards.
The driver requires the firmware loader support on kernel.
Module snd-lola
---------------
Module for Digigram Lola PCI-e boards
This module supports multiple cards.
Module snd-lx6464es
-------------------

2
Documentation/sound/alsa/HD-Audio-Models.txt
View File

@ -94,7 +94,7 @@ ALC662/663/272
3stack-dig 3-stack (2-channel) with SPDIF
3stack-6ch 3-stack (6-channel)
3stack-6ch-dig 3-stack (6-channel) with SPDIF
6stack-dig 6-stack with SPDIF
5stack-dig 5-stack with SPDIF
lenovo-101e Lenovo laptop
eeepc-p701 ASUS Eeepc P701
eeepc-ep20 ASUS Eeepc EP20

6
Documentation/sound/alsa/SB-Live-mixer.txt
View File

@ -87,14 +87,14 @@ accumulator. ALSA uses accumulators 0 and 1 for left and right PCM.
The result is forwarded to the ADC capture FIFO (thus to the standard capture
PCM device).
name='Music Playback Volume',index=0
name='Synth Playback Volume',index=0
This control is used to attenuate samples for left and right MIDI FX-bus
accumulators. ALSA uses accumulators 4 and 5 for left and right MIDI samples.
The result samples are forwarded to the front DAC PCM slots of the AC97 codec.
name='Music Capture Volume',index=0
name='Music Capture Switch',index=0
name='Synth Capture Volume',index=0
name='Synth Capture Switch',index=0
These controls are used to attenuate samples for left and right MIDI FX-bus
accumulator. ALSA uses accumulators 4 and 5 for left and right PCM.

2
Documentation/stable_api_nonsense.txt
View File

@ -122,7 +122,7 @@ operating system to suffer.
In both of these instances, all developers agreed that these were
important changes that needed to be made, and they were made, with
relatively little pain. If Linux had to ensure that it preserve a
relatively little pain. If Linux had to ensure that it will preserve a
stable source interface, a new interface would have been created, and
the older, broken one would have had to be maintained over time, leading
to extra work for the USB developers. Since all Linux USB developers do

7
Documentation/sysctl/fs.txt
View File

@ -231,13 +231,6 @@ its creation).
This directory contains configuration options for the epoll(7) interface.
max_user_instances
------------------
This is the maximum number of epoll file descriptors that a single user can
have open at a given time. The default value is 128, and should be enough
for normal users.
max_user_watches
----------------

11
Documentation/sysctl/net.txt
View File

@ -32,6 +32,17 @@ Table : Subdirectories in /proc/sys/net
1. /proc/sys/net/core - Network core options
-------------------------------------------------------
bpf_jit_enable
--------------
This enables Berkeley Packet Filter Just in Time compiler.
Currently supported on x86_64 architecture, bpf_jit provides a framework
to speed packet filtering, the one used by tcpdump/libpcap for example.
Values :
0 - disable the JIT (default value)
1 - enable the JIT
2 - enable the JIT and ask the compiler to emit traces on kernel log.
rmem_default
------------

4
Documentation/sysctl/vm.txt
View File

@ -481,10 +481,10 @@ the DMA zone.
Type(A) is called as "Node" order. Type (B) is "Zone" order.
"Node order" orders the zonelists by node, then by zone within each node.
Specify "[Nn]ode" for zone order
Specify "[Nn]ode" for node order
"Zone Order" orders the zonelists by zone type, then by node within each
zone. Specify "[Zz]one"for zode order.
zone. Specify "[Zz]one" for zone order.
Specify "[Dd]efault" to request automatic configuration. Autoconfiguration
will select "node" order in following case.

2
Documentation/timers/timers-howto.txt
View File

@ -24,7 +24,7 @@ ATOMIC CONTEXT:
ndelay(unsigned long nsecs)
udelay(unsigned long usecs)
mdelay(unsgined long msecs)
mdelay(unsigned long msecs)
udelay is the generally preferred API; ndelay-level
precision may not actually exist on many non-PC devices.

1
Documentation/trace/kprobetrace.txt
View File

@ -120,7 +120,6 @@ format:
field:unsigned char common_flags; offset:2; size:1; signed:0;
field:unsigned char common_preempt_count; offset:3; size:1;signed:0;
field:int common_pid; offset:4; size:4; signed:1;
field:int common_lock_depth; offset:8; size:4; signed:1;
field:unsigned long __probe_ip; offset:12; size:4; signed:0;
field:int __probe_nargs; offset:16; size:4; signed:1;

8
Documentation/usb/callbacks.txt
View File

@ -95,9 +95,11 @@ pre_reset
int (*pre_reset)(struct usb_interface *intf);
Another driver or user space is triggering a reset on the device which
contains the interface passed as an argument. Cease IO and save any
device state you need to restore.
A driver or user space is triggering a reset on the device which
contains the interface passed as an argument. Cease IO, wait for all
outstanding URBs to complete, and save any device state you need to
restore. No more URBs may be submitted until the post_reset method
is called.
If you need to allocate memory here, use GFP_NOIO or GFP_ATOMIC, if you
are in atomic context.

4
Documentation/usb/linux-cdc-acm.inf
View File

@ -90,10 +90,10 @@ ServiceBinary=%12%\USBSER.sys
[SourceDisksFiles]
[SourceDisksNames]
[DeviceList]
%DESCRIPTION%=DriverInstall, USB\VID_0525&PID_A4A7, USB\VID_0525&PID_A4AB&MI_02
%DESCRIPTION%=DriverInstall, USB\VID_0525&PID_A4A7, USB\VID_1D6B&PID_0104&MI_02
[DeviceList.NTamd64]
%DESCRIPTION%=DriverInstall, USB\VID_0525&PID_A4A7, USB\VID_0525&PID_A4AB&MI_02
%DESCRIPTION%=DriverInstall, USB\VID_0525&PID_A4A7, USB\VID_1D6B&PID_0104&MI_02
;------------------------------------------------------------------------------

6
Documentation/usb/linux.inf
View File

@ -18,15 +18,15 @@ DriverVer = 06/21/2006,6.0.6000.16384
; Decoration for x86 architecture
[LinuxDevices.NTx86]
%LinuxDevice% = RNDIS.NT.5.1, USB\VID_0525&PID_a4a2, USB\VID_0525&PID_a4ab&MI_00
%LinuxDevice% = RNDIS.NT.5.1, USB\VID_0525&PID_a4a2, USB\VID_1d6b&PID_0104&MI_00
; Decoration for x64 architecture
[LinuxDevices.NTamd64]
%LinuxDevice% = RNDIS.NT.5.1, USB\VID_0525&PID_a4a2, USB\VID_0525&PID_a4ab&MI_00
%LinuxDevice% = RNDIS.NT.5.1, USB\VID_0525&PID_a4a2, USB\VID_1d6b&PID_0104&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
%LinuxDevice% = RNDIS.NT.5.1, USB\VID_0525&PID_a4a2, USB\VID_1d6b&PID_0104&MI_00
;@@@ This is the common setting for setup
[ControlFlags]

20
Documentation/vgaarbiter.txt
View File

@ -14,11 +14,10 @@ the legacy VGA arbitration task (besides other bus management tasks) when more
than one legacy device co-exists on the same machine. But the problem happens
when these devices are trying to be accessed by different userspace clients
(e.g. two server in parallel). Their address assignments conflict. Moreover,
ideally, being an userspace application, it is not the role of the the X
server to control bus resources. Therefore an arbitration scheme outside of
the X server is needed to control the sharing of these resources. This
document introduces the operation of the VGA arbiter implemented for Linux
kernel.
ideally, being a userspace application, it is not the role of the X server to
control bus resources. Therefore an arbitration scheme outside of the X server
is needed to control the sharing of these resources. This document introduces
the operation of the VGA arbiter implemented for the Linux kernel.
----------------------------------------------------------------------------
@ -39,7 +38,7 @@ I.1 vgaarb
The vgaarb is a module of the Linux Kernel. When it is initially loaded, it
scans all PCI devices and adds the VGA ones inside the arbitration. The
arbiter then enables/disables the decoding on different devices of the VGA
legacy instructions. Device which do not want/need to use the arbiter may
legacy instructions. Devices which do not want/need to use the arbiter may
explicitly tell it by calling vga_set_legacy_decoding().
The kernel exports a char device interface (/dev/vga_arbiter) to the clients,
@ -95,8 +94,8 @@ In the case of devices hot-{un,}plugged, there is a hook - pci_notify() - to
notify them being added/removed in the system and automatically added/removed
in the arbiter.
There's also a in-kernel API of the arbiter in the case of DRM, vgacon and
others which may use the arbiter.
There is also an in-kernel API of the arbiter in case DRM, vgacon, or other
drivers want to use it.
I.2 libpciaccess
@ -117,9 +116,8 @@ Besides it, in pci_system were added:
struct pci_device *vga_default_dev;
The vga_count is usually need to keep informed how many cards are being
arbitrated, so for instance if there's only one then it can totally escape the
scheme.
The vga_count is used to track how many cards are being arbitrated, so for
instance, if there is only one card, then it can completely escape arbitration.
These functions below acquire VGA resources for the given card and mark those

6
Documentation/video4linux/sh_mobile_ceu_camera.txt
View File

@ -37,7 +37,7 @@ Generic scaling / cropping scheme
-1'-
In the above chart minuses and slashes represent "real" data amounts, points and
accents represent "useful" data, basically, CEU scaled amd cropped output,
accents represent "useful" data, basically, CEU scaled and cropped output,
mapped back onto the client's source plane.
Such a configuration can be produced by user requests:
@ -65,7 +65,7 @@ Do not touch input rectangle - it is already optimal.
1. Calculate current sensor scales:
scale_s = ((3') - (3)) / ((2') - (2))
scale_s = ((2') - (2)) / ((3') - (3))
2. Calculate "effective" input crop (sensor subwindow) - CEU crop scaled back at
current sensor scales onto input window - this is user S_CROP:
@ -80,7 +80,7 @@ window:
4. Calculate sensor output window by applying combined scales to real input
window:
width_s_out = ((2') - (2)) / scale_comb
width_s_out = ((7') - (7)) = ((2') - (2)) / scale_comb
5. Apply iterative sensor S_FMT for sensor output window.

10
Documentation/virtual/00-INDEX Normal file
View File

@ -0,0 +1,10 @@
Virtualization support in the Linux kernel.
00-INDEX
- this file.
kvm/
- Kernel Virtual Machine. See also http://linux-kvm.org
lguest/
- Extremely simple hypervisor for experimental/educational use.
uml/
- User Mode Linux, builds/runs Linux kernel as a userspace program.

34
Documentation/kvm/api.txt → Documentation/virtual/kvm/api.txt
View File

@ -175,7 +175,10 @@ Parameters: vcpu id (apic id on x86)
Returns: vcpu fd on success, -1 on error
This API adds a vcpu to a virtual machine. The vcpu id is a small integer
in the range [0, max_vcpus).
in the range [0, max_vcpus). You can use KVM_CAP_NR_VCPUS of the
KVM_CHECK_EXTENSION ioctl() to determine the value for max_vcpus at run-time.
If the KVM_CAP_NR_VCPUS does not exist, you should assume that max_vcpus is 4
cpus max.
4.8 KVM_GET_DIRTY_LOG (vm ioctl)
@ -261,7 +264,7 @@ See KVM_GET_REGS for the data structure.
4.13 KVM_GET_SREGS
Capability: basic
Architectures: x86
Architectures: x86, ppc
Type: vcpu ioctl
Parameters: struct kvm_sregs (out)
Returns: 0 on success, -1 on error
@ -279,6 +282,8 @@ struct kvm_sregs {
__u64 interrupt_bitmap[(KVM_NR_INTERRUPTS + 63) / 64];
};
/* ppc -- see arch/powerpc/include/asm/kvm.h */
interrupt_bitmap is a bitmap of pending external interrupts. At most
one bit may be set. This interrupt has been acknowledged by the APIC
but not yet injected into the cpu core.
@ -286,7 +291,7 @@ but not yet injected into the cpu core.
4.14 KVM_SET_SREGS
Capability: basic
Architectures: x86
Architectures: x86, ppc
Type: vcpu ioctl
Parameters: struct kvm_sregs (in)
Returns: 0 on success, -1 on error
@ -1263,6 +1268,29 @@ struct kvm_assigned_msix_entry {
__u16 padding[3];
};
4.54 KVM_SET_TSC_KHZ
Capability: KVM_CAP_TSC_CONTROL
Architectures: x86
Type: vcpu ioctl
Parameters: virtual tsc_khz
Returns: 0 on success, -1 on error
Specifies the tsc frequency for the virtual machine. The unit of the
frequency is KHz.
4.55 KVM_GET_TSC_KHZ
Capability: KVM_CAP_GET_TSC_KHZ
Architectures: x86
Type: vcpu ioctl
Parameters: none
Returns: virtual tsc-khz on success, negative value on error
Returns the tsc frequency of the guest. The unit of the return value is
KHz. If the host has unstable tsc this ioctl returns -EIO instead as an
error.
5. The kvm_run structure
Application code obtains a pointer to the kvm_run structure by

0
Documentation/kvm/cpuid.txt → Documentation/virtual/kvm/cpuid.txt
View File

0
Documentation/kvm/locking.txt → Documentation/virtual/kvm/locking.txt
View File

0
Documentation/kvm/mmu.txt → Documentation/virtual/kvm/mmu.txt
View File

0
Documentation/kvm/msr.txt → Documentation/virtual/kvm/msr.txt
View File

0
Documentation/kvm/ppc-pv.txt → Documentation/virtual/kvm/ppc-pv.txt
View File

2
Documentation/kvm/review-checklist.txt → Documentation/virtual/kvm/review-checklist.txt
View File

@ -7,7 +7,7 @@ Review checklist for kvm patches
2. Patches should be against kvm.git master branch.
3. If the patch introduces or modifies a new userspace API:
- the API must be documented in Documentation/kvm/api.txt
- the API must be documented in Documentation/virtual/kvm/api.txt
- the API must be discoverable using KVM_CHECK_EXTENSION
4. New state must include support for save/restore.

0
Documentation/kvm/timekeeping.txt → Documentation/virtual/kvm/timekeeping.txt
View File

0
Documentation/lguest/.gitignore → Documentation/virtual/lguest/.gitignore vendored
View File

0
Documentation/lguest/Makefile → Documentation/virtual/lguest/Makefile
View File

0
Documentation/lguest/extract → Documentation/virtual/lguest/extract
View File

0
Documentation/lguest/lguest.c → Documentation/virtual/lguest/lguest.c
View File

3
Documentation/lguest/lguest.txt → Documentation/virtual/lguest/lguest.txt
View File

@ -74,7 +74,8 @@ Running Lguest:
- Run an lguest as root:
Documentation/lguest/lguest 64 vmlinux --tunnet=192.168.19.1 --block=rootfile root=/dev/vda
Documentation/virtual/lguest/lguest 64 vmlinux --tunnet=192.168.19.1 \
--block=rootfile root=/dev/vda
Explanation:
64: the amount of memory to use, in MB.

0
Documentation/uml/UserModeLinux-HOWTO.txt → Documentation/virtual/uml/UserModeLinux-HOWTO.txt
View File

40
Documentation/workqueue.txt
View File

@ -12,6 +12,7 @@ CONTENTS
4. Application Programming Interface (API)
5. Example Execution Scenarios
6. Guidelines
7. Debugging
1. Introduction
@ -379,3 +380,42 @@ If q1 has WQ_CPU_INTENSIVE set,
* Unless work items are expected to consume a huge amount of CPU
cycles, using a bound wq is usually beneficial due to the increased
level of locality in wq operations and work item execution.
7. Debugging
Because the work functions are executed by generic worker threads
there are a few tricks needed to shed some light on misbehaving
workqueue users.
Worker threads show up in the process list as:
root 5671 0.0 0.0 0 0 ? S 12:07 0:00 [kworker/0:1]
root 5672 0.0 0.0 0 0 ? S 12:07 0:00 [kworker/1:2]
root 5673 0.0 0.0 0 0 ? S 12:12 0:00 [kworker/0:0]
root 5674 0.0 0.0 0 0 ? S 12:13 0:00 [kworker/1:0]
If kworkers are going crazy (using too much cpu), there are two types
of possible problems:
1. Something beeing scheduled in rapid succession
2. A single work item that consumes lots of cpu cycles
The first one can be tracked using tracing:
$ echo workqueue:workqueue_queue_work > /sys/kernel/debug/tracing/set_event
$ cat /sys/kernel/debug/tracing/trace_pipe > out.txt
(wait a few secs)
^C
If something is busy looping on work queueing, it would be dominating
the output and the offender can be determined with the work item
function.
For the second type of problems it should be possible to just check
the stack trace of the offending worker thread.
$ cat /proc/THE_OFFENDING_KWORKER/stack
The work item's function should be trivially visible in the stack
trace.

2
Documentation/x86/x86_64/boot-options.txt
View File

@ -206,7 +206,7 @@ IOMMU (input/output memory management unit)
(e.g. because you have < 3 GB memory).
Kernel boot message: "PCI-DMA: Disabling IOMMU"
2. <arch/x86_64/kernel/pci-gart.c>: AMD GART based hardware IOMMU.
2. <arch/x86/kernel/amd_gart_64.c>: AMD GART based hardware IOMMU.
Kernel boot message: "PCI-DMA: using GART IOMMU"
3. <arch/x86_64/kernel/pci-swiotlb.c> : Software IOMMU implementation. Used

210
Documentation/zh_CN/email-clients.txt Normal file
View File

@ -0,0 +1,210 @@
锘?Chinese translated version of Documentation/email-clients.txt
If you have any comment or update to the content, please contact the
original document maintainer directly. However, if you have a problem
communicating in English you can also ask the Chinese maintainer for
help. Contact the Chinese maintainer if this translation is outdated
or if there is a problem with the translation.
Chinese maintainer: Harry Wei <harryxiyou@gmail.com>
---------------------------------------------------------------------
Documentation/email-clients.txt ???涓????缈昏??
濡??????宠??璁烘????存?版???????????瀹癸??璇风?存?ヨ??绯诲?????妗ｇ??缁存?よ?????濡????浣?浣跨?ㄨ?辨??
浜ゆ???????伴?剧??璇?锛?涔????浠ュ??涓???????缁存?よ??姹???┿??濡???????缈昏????存?颁???????舵?????缈?
璇?瀛???ㄩ??棰?锛?璇疯??绯讳腑??????缁存?よ?????
涓???????缁存?よ??锛? 璐惧??濞? Harry Wei <harryxiyou@gmail.com>
涓???????缈昏?????锛? 璐惧??濞? Harry Wei <harryxiyou@gmail.com>
涓?????????¤?????锛? Yinglin Luan <synmyth@gmail.com>
Xiaochen Wang <wangxiaochen0@gmail.com>
yaxinsn <yaxinsn@163.com>
浠ヤ??涓烘?ｆ??
---------------------------------------------------------------------
Linux???浠跺?㈡?风?????缃?淇℃??
======================================================================
?????????缃?
----------------------------------------------------------------------
Linux?????歌ˉ涓???????杩????浠惰?????浜ょ??锛????濂芥??琛ヤ??浣?涓洪??浠朵????????宓?????????????浜?缁存?よ??
??ユ?堕??浠讹??浣???????浠剁?????瀹规?煎??搴?璇ユ??"text/plain"?????惰??锛????浠朵????????涓?璧???????锛?
???涓鸿??浼?浣胯ˉ涓????寮???ㄩ?ㄥ????ㄨ??璁鸿??绋?涓???????寰???伴?俱??
??ㄦ?ュ?????Linux?????歌ˉ涓???????浠跺?㈡?风????ㄥ?????琛ヤ????跺??璇ュ??浜?????????????濮???舵?????渚?濡?锛?
浠?浠?涓???芥?瑰?????????????ゅ?惰〃绗???????绌烘?硷???????虫????ㄦ??涓?琛????寮?澶存?????缁?灏俱??
涓?瑕????杩?"format=flowed"妯″????????琛ヤ?????杩???蜂??寮?璧蜂?????棰????浠ュ?????瀹崇?????琛????
涓?瑕?璁╀????????浠跺?㈡?风??杩?琛??????ㄦ?㈣?????杩???蜂??浼???村??浣????琛ヤ?????
???浠跺?㈡?风??涓???芥?瑰???????????瀛?绗????缂??????瑰?????瑕??????????琛ヤ???????芥??ASCII??????UTF-8缂??????瑰??锛?
濡????浣?浣跨??UTF-8缂??????瑰???????????浠讹????ｄ??浣?灏?浼???垮??涓?浜??????藉????????瀛?绗???????棰????
???浠跺?㈡?风??搴?璇ュ舰???骞朵??淇???? References: ?????? In-Reply-To: ???棰?锛???ｄ??
???浠惰??棰?灏变??浼?涓???????
澶???剁??甯?(?????????璐寸??甯?)???甯镐????界?ㄤ??琛ヤ??锛????涓哄?惰〃绗?浼?杞????涓虹┖??笺??浣跨??xclipboard, xclip
??????xcutsel涔?璁稿??浠ワ??浣???????濂芥??璇?涓?涓?????????垮??浣跨?ㄥ????剁??甯????
涓?瑕???ㄤ娇???PGP/GPG缃插????????浠朵腑??????琛ヤ?????杩???蜂??浣垮??寰?澶???????涓???借?诲??????????ㄤ??浣????琛ヤ?????
锛?杩?涓????棰?搴?璇ユ?????浠ヤ慨澶????锛?
??ㄧ???????搁??浠跺??琛ㄥ?????琛ヤ??涔????锛?缁????宸卞?????涓?涓?琛ヤ?????涓?涓???????涓绘??锛?淇?瀛???ユ?跺?扮??
???浠讹??灏?琛ヤ?????'patch'??戒护???涓?锛?濡??????????浜?锛????缁??????搁??浠跺??琛ㄥ????????
涓?浜????浠跺?㈡?风?????绀?
----------------------------------------------------------------------
杩????缁???轰??浜?璇?缁????MUA???缃????绀猴?????浠ョ?ㄤ??缁?Linux?????稿?????琛ヤ?????杩?浜?骞朵???????虫??
?????????杞?浠跺?????缃???荤?????
璇存??锛?
TUI = 浠ユ?????涓哄?虹???????ㄦ?锋?ュ??
GUI = ??惧舰?????㈢?ㄦ?锋?ュ??
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Alpine (TUI)
???缃????椤癸??
???"Sending Preferences"??ㄥ??锛?
- "Do Not Send Flowed Text"蹇?椤诲?????
- "Strip Whitespace Before Sending"蹇?椤诲?抽??
褰???????浠舵?讹????????搴?璇ユ?惧?ㄨˉ涓?浼???虹?扮????版?癸????跺?????涓?CTRL-R缁???????锛?浣挎??瀹????
琛ヤ?????浠跺????ュ?伴??浠朵腑???
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Evolution (GUI)
涓?浜?寮????????????????浣跨?ㄥ????????琛ヤ??
褰??????╅??浠堕??椤癸??Preformat
浠?Format->Heading->Preformatted (Ctrl-7)??????宸ュ?锋??
??跺??浣跨??锛?
Insert->Text File... (Alt-n x)?????ヨˉ涓????浠躲??
浣?杩????浠?"diff -Nru old.c new.c | xclip"锛???????Preformat锛???跺??浣跨?ㄤ腑??撮??杩?琛?绮?甯????
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Kmail (GUI)
涓?浜?寮????????????????浣跨?ㄥ????????琛ヤ?????
榛?璁よ?剧疆涓?涓?HTML??煎??????????????锛?涓?瑕??????ㄥ?????
褰?涔????涓?灏????浠剁????跺??锛???ㄩ??椤逛?????涓?瑕??????╄????ㄦ?㈣????????涓????缂虹?瑰氨???浣???ㄩ??浠朵腑杈???ョ??浠讳????????
??戒??浼?琚??????ㄦ?㈣??锛????姝や??蹇?椤诲?ㄥ?????琛ヤ??涔?????????ㄦ?㈣????????绠?????????规??灏辨???????ㄨ????ㄦ?㈣????ヤ功??????浠讹??
??跺?????瀹?淇?瀛?涓鸿??绋裤??涓????浣???ㄨ??绋夸腑???娆℃??寮?瀹?锛?瀹?宸茬????ㄩ?ㄨ????ㄦ?㈣??浜?锛???ｄ??浣???????浠惰?界?舵病???
?????╄????ㄦ?㈣??锛?浣????杩?涓?浼?澶卞?诲凡???????????ㄦ?㈣?????
??ㄩ??浠剁??搴????锛??????ヨˉ涓?涔????锛???句??甯哥?ㄧ??琛ヤ??瀹????绗?锛?涓?涓?杩?瀛????(---)???
??跺?????"Message"????????＄??锛??????╂????ユ??浠讹????ョ????????浣????琛ヤ?????浠躲??杩????涓?涓?棰?澶???????椤癸??浣????浠?
???杩?瀹????缃?浣???????浠跺缓绔?宸ュ?锋????????锛?杩????浠ュ甫涓?"insert file"??炬?????
浣????浠ュ????ㄥ?伴??杩?GPG???璁伴??浠讹??浣???????宓?琛ヤ?????濂戒??瑕?浣跨??GPG???璁板??浠????浣?涓哄??宓??????????绛惧??琛ヤ??锛?
褰?浠?GPG涓???????7浣?缂??????朵??浣夸??浠?????????村??澶???????
濡????浣????瑕?浠ラ??浠剁??褰㈠????????琛ヤ??锛???ｄ??灏卞?抽????瑰?婚??浠讹????跺?????涓?灞???э??绐????"Suggest automatic
display"锛?杩???峰??宓????浠舵?村?规??璁╄?昏???????般??
褰?浣?瑕?淇?瀛?灏?瑕?????????????宓???????琛ヤ??锛?浣????浠ヤ??娑???????琛ㄧ????奸????╁?????琛ヤ????????浠讹????跺????冲?婚?????
"save as"???浣????浠ヤ娇??ㄤ??涓?娌℃????存?圭????????琛ヤ????????浠讹??濡????瀹????浠ユ?ｇ‘???褰㈠??缁???????褰?浣?姝ｇ????ㄥ??
???宸辩??绐???ｄ??涓?瀵????锛???ｆ?舵病??????椤瑰??浠ヤ??瀛????浠?--宸茬?????涓?涓?杩???风??bug琚?姹???ュ?颁??kmail???bugzilla
骞朵??甯????杩?灏?浼?琚?澶??????????浠舵??浠ュ?????瀵规??涓???ㄦ?峰??璇诲???????????琚?淇?瀛????锛????浠ュ?????浣???虫?????浠跺????跺?板?朵????版?癸??
浣?涓?寰?涓????浠?浠????????????逛负缁?????????翠?????璇汇??
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Lotus Notes (GUI)
涓?瑕?浣跨?ㄥ?????
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Mutt (TUI)
寰?澶?Linux寮????浜哄??浣跨??mutt瀹㈡?风??锛????浠ヨ?????瀹????瀹?宸ヤ????????甯告??浜????
Mutt涓????甯?缂?杈????锛????浠ヤ??绠′??浣跨?ㄤ??涔?缂?杈???ㄩ?戒??搴?璇ュ甫????????ㄦ??琛????澶у????扮??杈???ㄩ?藉甫???
涓?涓?"insert file"???椤癸??瀹????浠ラ??杩?涓???瑰?????浠跺??瀹圭????瑰???????ユ??浠躲??
'vim'浣?涓?mutt???缂?杈????锛?
set editor="vi"
濡????浣跨??xclip锛???插?ヤ互涓???戒护
:set paste
???涓????涔??????????shift-insert??????浣跨??
:r filename
濡??????宠?????琛ヤ??浣?涓哄??宓??????????
(a)ttach宸ヤ?????寰?濂斤??涓?甯????"set paste"???
???缃????椤癸??
瀹?搴?璇ヤ互榛?璁よ?剧疆???褰㈠??宸ヤ?????
??惰??锛????"send_charset"璁剧疆涓?"us-ascii::utf-8"涔????涓?涓?涓???????涓绘?????
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Pine (TUI)
Pine杩???绘??涓?浜?绌烘?煎????????棰?锛?浣????杩?浜???板?ㄥ??璇ラ?借??淇?澶?浜????
濡???????浠ワ??璇蜂娇???alpine(pine???缁ф?胯??)
???缃????椤癸??
- ???杩?????????????瑕?娑???ゆ??绋???????
- "no-strip-whitespace-before-send"???椤逛????????瑕???????
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Sylpheed (GUI)
- ???宓??????????浠ュ??濂界??宸ヤ??锛???????浣跨?ㄩ??浠讹?????
- ???璁镐娇??ㄥ????ㄧ??缂?杈???ㄣ??
- 瀵逛?????褰?杈?澶???堕??甯告?????
- 濡???????杩?non-SSL杩???ワ?????娉?浣跨??TLS SMTP?????????
- ??ㄧ?????绐???ｄ腑???涓?涓?寰??????ㄧ??ruler bar???
- 缁???板?????涓?娣诲????板??灏变??浼?姝ｇ‘???浜?瑙ｆ?剧ず??????
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Thunderbird (GUI)
榛?璁ゆ????典??锛?thunderbird寰?瀹规??????????????锛?浣????杩????涓?浜???规?????浠ュ己??跺?????寰???村ソ???
- ??ㄧ?ㄦ?峰????疯?剧疆???锛?缁???????瀵诲??锛?涓?瑕???????"Compose messages in HTML format"???
- 缂?杈?浣????Thunderbird???缃?璁剧疆??ヤ娇瀹?涓?瑕????琛?浣跨??锛?user_pref("mailnews.wraplength", 0);
- 缂?杈?浣????Thunderbird???缃?璁剧疆锛?浣垮??涓?瑕?浣跨??"format=flowed"??煎??锛?user_pref("mailnews.
send_plaintext_flowed", false);
- 浣????瑕?浣?Thunderbird???涓洪???????煎????瑰??锛?
濡????榛?璁ゆ????典??浣?涔??????????HTML??煎??锛???ｄ?????寰???俱??浠?浠?浠????棰???????涓????妗?涓???????"Preformat"??煎?????
濡????榛?璁ゆ????典??浣?涔??????????????????煎??锛?浣?涓?寰????瀹???逛负HTML??煎??锛?浠?浠?浣?涓轰??娆℃?х??锛???ヤ功?????扮??娑????锛?
??跺??寮哄?朵娇瀹??????版???????煎??锛???????瀹?灏变?????琛????瑕?瀹???板??锛???ㄥ??淇＄????炬??涓?浣跨??shift?????ヤ娇瀹????涓?HTML
??煎??锛???跺?????棰???????涓????妗?涓???????"Preformat"??煎?????
- ???璁镐娇??ㄥ????ㄧ??缂?杈????锛?
???瀵?Thunderbird???琛ヤ?????绠?????????规??灏辨??浣跨?ㄤ??涓?"external editor"??╁??锛???跺??浣跨?ㄤ????????娆㈢??
$EDITOR??ヨ?诲???????????骞惰ˉ涓???版?????涓????瑕?瀹???板??锛????浠ヤ??杞藉苟涓?瀹?瑁?杩?涓???╁??锛???跺??娣诲??涓?涓?浣跨?ㄥ?????
??????View->Toolbars->Customize...??????褰?浣?涔????淇℃???????跺??浠?浠???瑰?诲??灏卞??浠ヤ?????
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
TkRat (GUI)
???浠ヤ娇??ㄥ?????浣跨??"Insert file..."??????澶???ㄧ??缂?杈???ㄣ??
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Gmail (Web GUI)
涓?瑕?浣跨?ㄥ????????琛ヤ?????
Gmail缃?椤靛?㈡?风???????ㄥ?版????惰〃绗?杞????涓虹┖??笺??
??界?跺?惰〃绗?杞????涓虹┖??奸??棰????浠ヨ??澶???ㄧ??杈???ㄨВ??筹???????跺??杩?浼?浣跨?ㄥ??杞???㈣?????姣?琛???????涓?78涓?瀛?绗????
???涓?涓????棰????Gmail杩?浼????浠讳??涓????ASCII???瀛?绗????淇℃????逛负base64缂???????瀹????涓?瑗垮????????娆ф床浜虹?????瀛????
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