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-rw-r--r--Documentation/00-INDEX2
-rw-r--r--Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus10
-rw-r--r--Documentation/ABI/testing/sysfs-bus-bcma31
-rw-r--r--Documentation/ABI/testing/sysfs-devices-system-cpu34
-rw-r--r--Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus19
-rw-r--r--Documentation/ABI/testing/sysfs-firmware-dmi18
-rw-r--r--Documentation/ABI/testing/sysfs-firmware-gsmi58
-rw-r--r--Documentation/ABI/testing/sysfs-firmware-log7
-rw-r--r--Documentation/ABI/testing/sysfs-kernel-fscaps8
-rw-r--r--Documentation/ABI/testing/sysfs-power14
-rw-r--r--Documentation/DocBook/device-drivers.tmpl6
-rw-r--r--Documentation/DocBook/genericirq.tmpl82
-rw-r--r--Documentation/DocBook/media-entities.tmpl1
-rw-r--r--Documentation/DocBook/v4l/media-ioc-setup-link.xml2
-rw-r--r--Documentation/DocBook/v4l/pixfmt-y12.xml79
-rw-r--r--Documentation/DocBook/v4l/pixfmt.xml1
-rw-r--r--Documentation/DocBook/v4l/subdev-formats.xml59
-rw-r--r--Documentation/RCU/00-INDEX2
-rw-r--r--Documentation/RCU/stallwarn.txt23
-rw-r--r--Documentation/RCU/trace.txt278
-rw-r--r--Documentation/cgroups/memory.txt15
-rw-r--r--Documentation/devicetree/bindings/crypto/fsl-sec4.txt397
-rwxr-xr-xDocumentation/devicetree/bindings/net/can/fsl-flexcan.txt61
-rw-r--r--Documentation/devicetree/bindings/powerpc/fsl/ifc.txt76
-rw-r--r--Documentation/devicetree/bindings/powerpc/fsl/mpic-timer.txt38
-rw-r--r--Documentation/devicetree/bindings/powerpc/fsl/mpic.txt2
-rw-r--r--Documentation/driver-model/bus.txt19
-rw-r--r--Documentation/driver-model/class.txt17
-rw-r--r--Documentation/driver-model/device.txt91
-rw-r--r--Documentation/driver-model/driver.txt18
-rw-r--r--Documentation/feature-removal-schedule.txt29
-rw-r--r--Documentation/filesystems/proc.txt1
-rw-r--r--Documentation/flexible-arrays.txt4
-rw-r--r--Documentation/hid/hiddev.txt (renamed from Documentation/usb/hiddev.txt)0
-rw-r--r--Documentation/hid/hidraw.txt119
-rw-r--r--Documentation/hwmon/adm102136
-rw-r--r--Documentation/hwmon/lm9029
-rw-r--r--Documentation/ja_JP/HOWTO129
-rw-r--r--Documentation/kernel-parameters.txt6
-rw-r--r--Documentation/networking/batman-adv.txt11
-rw-r--r--Documentation/networking/bonding.txt34
-rw-r--r--Documentation/networking/igb.txt13
-rw-r--r--Documentation/power/devices.txt14
-rw-r--r--Documentation/power/notifiers.txt51
-rw-r--r--Documentation/scsi/LICENSE.qla2xxx292
-rw-r--r--Documentation/sound/alsa/ALSA-Configuration.txt7
-rw-r--r--Documentation/sound/alsa/HD-Audio-Models.txt2
-rw-r--r--Documentation/sysctl/net.txt11
-rw-r--r--Documentation/trace/kprobetrace.txt1
-rw-r--r--Documentation/video4linux/sh_mobile_ceu_camera.txt6
-rw-r--r--Documentation/virtual/00-INDEX10
-rw-r--r--Documentation/virtual/kvm/api.txt (renamed from Documentation/kvm/api.txt)34
-rw-r--r--Documentation/virtual/kvm/cpuid.txt (renamed from Documentation/kvm/cpuid.txt)0
-rw-r--r--Documentation/virtual/kvm/locking.txt (renamed from Documentation/kvm/locking.txt)0
-rw-r--r--Documentation/virtual/kvm/mmu.txt (renamed from Documentation/kvm/mmu.txt)0
-rw-r--r--Documentation/virtual/kvm/msr.txt (renamed from Documentation/kvm/msr.txt)0
-rw-r--r--Documentation/virtual/kvm/ppc-pv.txt (renamed from Documentation/kvm/ppc-pv.txt)0
-rw-r--r--Documentation/virtual/kvm/review-checklist.txt (renamed from Documentation/kvm/review-checklist.txt)2
-rw-r--r--Documentation/virtual/kvm/timekeeping.txt (renamed from Documentation/kvm/timekeeping.txt)0
-rw-r--r--Documentation/virtual/lguest/.gitignore (renamed from Documentation/lguest/.gitignore)0
-rw-r--r--Documentation/virtual/lguest/Makefile (renamed from Documentation/lguest/Makefile)0
-rw-r--r--Documentation/virtual/lguest/extract (renamed from Documentation/lguest/extract)0
-rw-r--r--Documentation/virtual/lguest/lguest.c (renamed from Documentation/lguest/lguest.c)0
-rw-r--r--Documentation/virtual/lguest/lguest.txt (renamed from Documentation/lguest/lguest.txt)3
-rw-r--r--Documentation/virtual/uml/UserModeLinux-HOWTO.txt (renamed from Documentation/uml/UserModeLinux-HOWTO.txt)0
-rw-r--r--Documentation/workqueue.txt40
-rw-r--r--Documentation/x86/x86_64/boot-options.txt2
-rw-r--r--Documentation/zh_CN/email-clients.txt210
68 files changed, 2065 insertions, 499 deletions
diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX
index c17cd4bb2290..1b777b960492 100644
--- a/Documentation/00-INDEX
+++ b/Documentation/00-INDEX
@@ -328,8 +328,6 @@ sysrq.txt
328 - info on the magic SysRq key. 328 - info on the magic SysRq key.
329telephony/ 329telephony/
330 - directory with info on telephony (e.g. voice over IP) support. 330 - directory with info on telephony (e.g. voice over IP) support.
331uml/
332 - directory with information about User Mode Linux.
333unicode.txt 331unicode.txt
334 - info on the Unicode character/font mapping used in Linux. 332 - info on the Unicode character/font mapping used in Linux.
335unshare.txt 333unshare.txt
diff --git a/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus
new file mode 100644
index 000000000000..c2a270b45b03
--- /dev/null
+++ b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus
@@ -0,0 +1,10 @@
1What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/startup_profile
2Date: October 2010
3Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
4Description: The integer value of this attribute ranges from 0-4.
5 When read, this attribute returns the number of the actual
6 profile. This value is persistent, so its equivalent to the
7 profile that's active when the mouse is powered on next time.
8 When written, this file sets the number of the startup profile
9 and the mouse activates this profile immediately.
10 Please use actual_profile, it does the same thing.
diff --git a/Documentation/ABI/testing/sysfs-bus-bcma b/Documentation/ABI/testing/sysfs-bus-bcma
new file mode 100644
index 000000000000..06b62badddd1
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-bcma
@@ -0,0 +1,31 @@
1What: /sys/bus/bcma/devices/.../manuf
2Date: May 2011
3KernelVersion: 2.6.40
4Contact: Rafał Miłecki <zajec5@gmail.com>
5Description:
6 Each BCMA core has it's manufacturer id. See
7 include/linux/bcma/bcma.h for possible values.
8
9What: /sys/bus/bcma/devices/.../id
10Date: May 2011
11KernelVersion: 2.6.40
12Contact: Rafał Miłecki <zajec5@gmail.com>
13Description:
14 There are a few types of BCMA cores, they can be identified by
15 id field.
16
17What: /sys/bus/bcma/devices/.../rev
18Date: May 2011
19KernelVersion: 2.6.40
20Contact: Rafał Miłecki <zajec5@gmail.com>
21Description:
22 BCMA cores of the same type can still slightly differ depending
23 on their revision. Use it for detailed programming.
24
25What: /sys/bus/bcma/devices/.../class
26Date: May 2011
27KernelVersion: 2.6.40
28Contact: Rafał Miłecki <zajec5@gmail.com>
29Description:
30 Each BCMA core is identified by few fields, including class it
31 belongs to. See include/linux/bcma/bcma.h for possible values.
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index 7564e88bfa43..e7be75b96e4b 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -183,21 +183,21 @@ Description: Discover and change clock speed of CPUs
183 to learn how to control the knobs. 183 to learn how to control the knobs.
184 184
185 185
186What: /sys/devices/system/cpu/cpu*/cache/index*/cache_disable_X 186What: /sys/devices/system/cpu/cpu*/cache/index3/cache_disable_{0,1}
187Date: August 2008 187Date: August 2008
188KernelVersion: 2.6.27 188KernelVersion: 2.6.27
189Contact: mark.langsdorf@amd.com 189Contact: discuss@x86-64.org
190Description: These files exist in every cpu's cache index directories. 190Description: Disable L3 cache indices
191 There are currently 2 cache_disable_# files in each 191
192 directory. Reading from these files on a supported 192 These files exist in every CPU's cache/index3 directory. Each
193 processor will return that cache disable index value 193 cache_disable_{0,1} file corresponds to one disable slot which
194 for that processor and node. Writing to one of these 194 can be used to disable a cache index. Reading from these files
195 files will cause the specificed cache index to be disabled. 195 on a processor with this functionality will return the currently
196 196 disabled index for that node. There is one L3 structure per
197 Currently, only AMD Family 10h Processors support cache index 197 node, or per internal node on MCM machines. Writing a valid
198 disable, and only for their L3 caches. See the BIOS and 198 index to one of these files will cause the specificed cache
199 Kernel Developer's Guide at 199 index to be disabled.
200 http://support.amd.com/us/Embedded_TechDocs/31116-Public-GH-BKDG_3-28_5-28-09.pdf 200
201 for formatting information and other details on the 201 All AMD processors with L3 caches provide this functionality.
202 cache index disable. 202 For details, see BKDGs at
203Users: joachim.deguara@amd.com 203 http://developer.amd.com/documentation/guides/Pages/default.aspx
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus b/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
index 326e05452da7..c1b53b8bc2ae 100644
--- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
@@ -1,9 +1,12 @@
1What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/actual_profile 1What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/actual_profile
2Date: October 2010 2Date: October 2010
3Contact: Stefan Achatz <erazor_de@users.sourceforge.net> 3Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
4Description: When read, this file returns the number of the actual profile in 4Description: The integer value of this attribute ranges from 0-4.
5 range 0-4. 5 When read, this attribute returns the number of the actual
6 This file is readonly. 6 profile. This value is persistent, so its equivalent to the
7 profile that's active when the mouse is powered on next time.
8 When written, this file sets the number of the startup profile
9 and the mouse activates this profile immediately.
7Users: http://roccat.sourceforge.net 10Users: http://roccat.sourceforge.net
8 11
9What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/firmware_version 12What: /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
89 This file is writeonly. 92 This file is writeonly.
90Users: http://roccat.sourceforge.net 93Users: http://roccat.sourceforge.net
91 94
92What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/startup_profile
93Date: October 2010
94Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
95Description: The integer value of this attribute ranges from 0-4.
96 When read, this attribute returns the number of the profile
97 that's active when the mouse is powered on.
98 When written, this file sets the number of the startup profile
99 and the mouse activates this profile immediately.
100Users: http://roccat.sourceforge.net
101
102What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/tcu 95What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/tcu
103Date: October 2010 96Date: October 2010
104Contact: Stefan Achatz <erazor_de@users.sourceforge.net> 97Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
diff --git a/Documentation/ABI/testing/sysfs-firmware-dmi b/Documentation/ABI/testing/sysfs-firmware-dmi
index ba9da9503c23..c78f9ab01e56 100644
--- a/Documentation/ABI/testing/sysfs-firmware-dmi
+++ b/Documentation/ABI/testing/sysfs-firmware-dmi
@@ -14,14 +14,15 @@ Description:
14 14
15 DMI is structured as a large table of entries, where 15 DMI is structured as a large table of entries, where
16 each entry has a common header indicating the type and 16 each entry has a common header indicating the type and
17 length of the entry, as well as 'handle' that is 17 length of the entry, as well as a firmware-provided
18 supposed to be unique amongst all entries. 18 'handle' that is supposed to be unique amongst all
19 entries.
19 20
20 Some entries are required by the specification, but many 21 Some entries are required by the specification, but many
21 others are optional. In general though, users should 22 others are optional. In general though, users should
22 never expect to find a specific entry type on their 23 never expect to find a specific entry type on their
23 system unless they know for certain what their firmware 24 system unless they know for certain what their firmware
24 is doing. Machine to machine will vary. 25 is doing. Machine to machine experiences will vary.
25 26
26 Multiple entries of the same type are allowed. In order 27 Multiple entries of the same type are allowed. In order
27 to handle these duplicate entry types, each entry is 28 to handle these duplicate entry types, each entry is
@@ -67,25 +68,24 @@ Description:
67 and the two terminating nul characters. 68 and the two terminating nul characters.
68 type : The type of the entry. This value is the same 69 type : The type of the entry. This value is the same
69 as found in the directory name. It indicates 70 as found in the directory name. It indicates
70 how the rest of the entry should be 71 how the rest of the entry should be interpreted.
71 interpreted.
72 instance: The instance ordinal of the entry for the 72 instance: The instance ordinal of the entry for the
73 given type. This value is the same as found 73 given type. This value is the same as found
74 in the parent directory name. 74 in the parent directory name.
75 position: The position of the entry within the entirety 75 position: The ordinal position (zero-based) of the entry
76 of the entirety. 76 within the entirety of the DMI entry table.
77 77
78 === Entry Specialization === 78 === Entry Specialization ===
79 79
80 Some entry types may have other information available in 80 Some entry types may have other information available in
81 sysfs. 81 sysfs. Not all types are specialized.
82 82
83 --- Type 15 - System Event Log --- 83 --- Type 15 - System Event Log ---
84 84
85 This entry allows the firmware to export a log of 85 This entry allows the firmware to export a log of
86 events the system has taken. This information is 86 events the system has taken. This information is
87 typically backed by nvram, but the implementation 87 typically backed by nvram, but the implementation
88 details are abstracted by this table. This entries data 88 details are abstracted by this table. This entry's data
89 is exported in the directory: 89 is exported in the directory:
90 90
91 /sys/firmware/dmi/entries/15-0/system_event_log 91 /sys/firmware/dmi/entries/15-0/system_event_log
diff --git a/Documentation/ABI/testing/sysfs-firmware-gsmi b/Documentation/ABI/testing/sysfs-firmware-gsmi
new file mode 100644
index 000000000000..0faa0aaf4b6a
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-firmware-gsmi
@@ -0,0 +1,58 @@
1What: /sys/firmware/gsmi
2Date: March 2011
3Contact: Mike Waychison <mikew@google.com>
4Description:
5 Some servers used internally at Google have firmware
6 that provides callback functionality via explicit SMI
7 triggers. Some of the callbacks are similar to those
8 provided by the EFI runtime services page, but due to
9 historical reasons this different entry-point has been
10 used.
11
12 The gsmi driver implements the kernel's abstraction for
13 these firmware callbacks. Currently, this functionality
14 is limited to handling the system event log and getting
15 access to EFI-style variables stored in nvram.
16
17 Layout:
18
19 /sys/firmware/gsmi/vars:
20
21 This directory has the same layout (and
22 underlying implementation as /sys/firmware/efi/vars.
23 See Documentation/ABI/*/sysfs-firmware-efi-vars
24 for more information on how to interact with
25 this structure.
26
27 /sys/firmware/gsmi/append_to_eventlog - write-only:
28
29 This file takes a binary blob and passes it onto
30 the firmware to be timestamped and appended to
31 the system eventlog. The binary format is
32 interpreted by the firmware and may change from
33 platform to platform. The only kernel-enforced
34 requirement is that the blob be prefixed with a
35 32bit host-endian type used as part of the
36 firmware call.
37
38 /sys/firmware/gsmi/clear_config - write-only:
39
40 Writing any value to this file will cause the
41 entire firmware configuration to be reset to
42 "factory defaults". Callers should assume that
43 a reboot is required for the configuration to be
44 cleared.
45
46 /sys/firmware/gsmi/clear_eventlog - write-only:
47
48 This file is used to clear out a portion/the
49 whole of the system event log. Values written
50 should be values between 1 and 100 inclusive (in
51 ASCII) representing the fraction of the log to
52 clear. Not all platforms support fractional
53 clearing though, and this writes to this file
54 will error out if the firmware doesn't like your
55 submitted fraction.
56
57 Callers should assume that a reboot is needed
58 for this operation to complete.
diff --git a/Documentation/ABI/testing/sysfs-firmware-log b/Documentation/ABI/testing/sysfs-firmware-log
new file mode 100644
index 000000000000..9b58e7c5365f
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-firmware-log
@@ -0,0 +1,7 @@
1What: /sys/firmware/log
2Date: February 2011
3Contact: Mike Waychison <mikew@google.com>
4Description:
5 The /sys/firmware/log is a binary file that represents a
6 read-only copy of the firmware's log if one is
7 available.
diff --git a/Documentation/ABI/testing/sysfs-kernel-fscaps b/Documentation/ABI/testing/sysfs-kernel-fscaps
new file mode 100644
index 000000000000..50a3033b5e15
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-fscaps
@@ -0,0 +1,8 @@
1What: /sys/kernel/fscaps
2Date: February 2011
3KernelVersion: 2.6.38
4Contact: Ludwig Nussel <ludwig.nussel@suse.de>
5Description
6 Shows whether file system capabilities are honored
7 when executing a binary
8
diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power
index 194ca446ac28..b464d12761ba 100644
--- a/Documentation/ABI/testing/sysfs-power
+++ b/Documentation/ABI/testing/sysfs-power
@@ -158,3 +158,17 @@ Description:
158 successful, will make the kernel abort a subsequent transition 158 successful, will make the kernel abort a subsequent transition
159 to a sleep state if any wakeup events are reported after the 159 to a sleep state if any wakeup events are reported after the
160 write has returned. 160 write has returned.
161
162What: /sys/power/reserved_size
163Date: May 2011
164Contact: Rafael J. Wysocki <rjw@sisk.pl>
165Description:
166 The /sys/power/reserved_size file allows user space to control
167 the amount of memory reserved for allocations made by device
168 drivers during the "device freeze" stage of hibernation. It can
169 be written a string representing a non-negative integer that
170 will be used as the amount of memory to reserve for allocations
171 made by device drivers' "freeze" callbacks, in bytes.
172
173 Reading from this file will display the current value, which is
174 set to 1 MB by default.
diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl
index 36f63d4a0a06..b638e50cf8f6 100644
--- a/Documentation/DocBook/device-drivers.tmpl
+++ b/Documentation/DocBook/device-drivers.tmpl
@@ -96,10 +96,10 @@ X!Iinclude/linux/kobject.h
96 96
97 <chapter id="devdrivers"> 97 <chapter id="devdrivers">
98 <title>Device drivers infrastructure</title> 98 <title>Device drivers infrastructure</title>
99 <sect1><title>The Basic Device Driver-Model Structures </title>
100!Iinclude/linux/device.h
101 </sect1>
99 <sect1><title>Device Drivers Base</title> 102 <sect1><title>Device Drivers Base</title>
100<!--
101X!Iinclude/linux/device.h
102-->
103!Edrivers/base/driver.c 103!Edrivers/base/driver.c
104!Edrivers/base/core.c 104!Edrivers/base/core.c
105!Edrivers/base/class.c 105!Edrivers/base/class.c
diff --git a/Documentation/DocBook/genericirq.tmpl b/Documentation/DocBook/genericirq.tmpl
index fb10fd08c05c..b3422341d65c 100644
--- a/Documentation/DocBook/genericirq.tmpl
+++ b/Documentation/DocBook/genericirq.tmpl
@@ -191,8 +191,8 @@
191 <para> 191 <para>
192 Whenever an interrupt triggers, the lowlevel arch code calls into 192 Whenever an interrupt triggers, the lowlevel arch code calls into
193 the generic interrupt code by calling desc->handle_irq(). 193 the generic interrupt code by calling desc->handle_irq().
194 This highlevel IRQ handling function only uses desc->chip primitives 194 This highlevel IRQ handling function only uses desc->irq_data.chip
195 referenced by the assigned chip descriptor structure. 195 primitives referenced by the assigned chip descriptor structure.
196 </para> 196 </para>
197 </sect1> 197 </sect1>
198 <sect1 id="Highlevel_Driver_API"> 198 <sect1 id="Highlevel_Driver_API">
@@ -206,11 +206,11 @@
206 <listitem><para>enable_irq()</para></listitem> 206 <listitem><para>enable_irq()</para></listitem>
207 <listitem><para>disable_irq_nosync() (SMP only)</para></listitem> 207 <listitem><para>disable_irq_nosync() (SMP only)</para></listitem>
208 <listitem><para>synchronize_irq() (SMP only)</para></listitem> 208 <listitem><para>synchronize_irq() (SMP only)</para></listitem>
209 <listitem><para>set_irq_type()</para></listitem> 209 <listitem><para>irq_set_irq_type()</para></listitem>
210 <listitem><para>set_irq_wake()</para></listitem> 210 <listitem><para>irq_set_irq_wake()</para></listitem>
211 <listitem><para>set_irq_data()</para></listitem> 211 <listitem><para>irq_set_handler_data()</para></listitem>
212 <listitem><para>set_irq_chip()</para></listitem> 212 <listitem><para>irq_set_chip()</para></listitem>
213 <listitem><para>set_irq_chip_data()</para></listitem> 213 <listitem><para>irq_set_chip_data()</para></listitem>
214 </itemizedlist> 214 </itemizedlist>
215 See the autogenerated function documentation for details. 215 See the autogenerated function documentation for details.
216 </para> 216 </para>
@@ -225,6 +225,8 @@
225 <listitem><para>handle_fasteoi_irq</para></listitem> 225 <listitem><para>handle_fasteoi_irq</para></listitem>
226 <listitem><para>handle_simple_irq</para></listitem> 226 <listitem><para>handle_simple_irq</para></listitem>
227 <listitem><para>handle_percpu_irq</para></listitem> 227 <listitem><para>handle_percpu_irq</para></listitem>
228 <listitem><para>handle_edge_eoi_irq</para></listitem>
229 <listitem><para>handle_bad_irq</para></listitem>
228 </itemizedlist> 230 </itemizedlist>
229 The interrupt flow handlers (either predefined or architecture 231 The interrupt flow handlers (either predefined or architecture
230 specific) are assigned to specific interrupts by the architecture 232 specific) are assigned to specific interrupts by the architecture
@@ -241,13 +243,13 @@
241 <programlisting> 243 <programlisting>
242default_enable(struct irq_data *data) 244default_enable(struct irq_data *data)
243{ 245{
244 desc->chip->irq_unmask(data); 246 desc->irq_data.chip->irq_unmask(data);
245} 247}
246 248
247default_disable(struct irq_data *data) 249default_disable(struct irq_data *data)
248{ 250{
249 if (!delay_disable(data)) 251 if (!delay_disable(data))
250 desc->chip->irq_mask(data); 252 desc->irq_data.chip->irq_mask(data);
251} 253}
252 254
253default_ack(struct irq_data *data) 255default_ack(struct irq_data *data)
@@ -284,9 +286,9 @@ noop(struct irq_data *data))
284 <para> 286 <para>
285 The following control flow is implemented (simplified excerpt): 287 The following control flow is implemented (simplified excerpt):
286 <programlisting> 288 <programlisting>
287desc->chip->irq_mask(); 289desc->irq_data.chip->irq_mask_ack();
288handle_IRQ_event(desc->action); 290handle_irq_event(desc->action);
289desc->chip->irq_unmask(); 291desc->irq_data.chip->irq_unmask();
290 </programlisting> 292 </programlisting>
291 </para> 293 </para>
292 </sect3> 294 </sect3>
@@ -300,8 +302,8 @@ desc->chip->irq_unmask();
300 <para> 302 <para>
301 The following control flow is implemented (simplified excerpt): 303 The following control flow is implemented (simplified excerpt):
302 <programlisting> 304 <programlisting>
303handle_IRQ_event(desc->action); 305handle_irq_event(desc->action);
304desc->chip->irq_eoi(); 306desc->irq_data.chip->irq_eoi();
305 </programlisting> 307 </programlisting>
306 </para> 308 </para>
307 </sect3> 309 </sect3>
@@ -315,17 +317,17 @@ desc->chip->irq_eoi();
315 The following control flow is implemented (simplified excerpt): 317 The following control flow is implemented (simplified excerpt):
316 <programlisting> 318 <programlisting>
317if (desc->status &amp; running) { 319if (desc->status &amp; running) {
318 desc->chip->irq_mask(); 320 desc->irq_data.chip->irq_mask_ack();
319 desc->status |= pending | masked; 321 desc->status |= pending | masked;
320 return; 322 return;
321} 323}
322desc->chip->irq_ack(); 324desc->irq_data.chip->irq_ack();
323desc->status |= running; 325desc->status |= running;
324do { 326do {
325 if (desc->status &amp; masked) 327 if (desc->status &amp; masked)
326 desc->chip->irq_unmask(); 328 desc->irq_data.chip->irq_unmask();
327 desc->status &amp;= ~pending; 329 desc->status &amp;= ~pending;
328 handle_IRQ_event(desc->action); 330 handle_irq_event(desc->action);
329} while (status &amp; pending); 331} while (status &amp; pending);
330desc->status &amp;= ~running; 332desc->status &amp;= ~running;
331 </programlisting> 333 </programlisting>
@@ -344,7 +346,7 @@ desc->status &amp;= ~running;
344 <para> 346 <para>
345 The following control flow is implemented (simplified excerpt): 347 The following control flow is implemented (simplified excerpt):
346 <programlisting> 348 <programlisting>
347handle_IRQ_event(desc->action); 349handle_irq_event(desc->action);
348 </programlisting> 350 </programlisting>
349 </para> 351 </para>
350 </sect3> 352 </sect3>
@@ -362,12 +364,29 @@ handle_IRQ_event(desc->action);
362 <para> 364 <para>
363 The following control flow is implemented (simplified excerpt): 365 The following control flow is implemented (simplified excerpt):
364 <programlisting> 366 <programlisting>
365handle_IRQ_event(desc->action); 367if (desc->irq_data.chip->irq_ack)
366if (desc->chip->irq_eoi) 368 desc->irq_data.chip->irq_ack();
367 desc->chip->irq_eoi(); 369handle_irq_event(desc->action);
370if (desc->irq_data.chip->irq_eoi)
371 desc->irq_data.chip->irq_eoi();
368 </programlisting> 372 </programlisting>
369 </para> 373 </para>
370 </sect3> 374 </sect3>
375 <sect3 id="EOI_Edge_IRQ_flow_handler">
376 <title>EOI Edge IRQ flow handler</title>
377 <para>
378 handle_edge_eoi_irq provides an abnomination of the edge
379 handler which is solely used to tame a badly wreckaged
380 irq controller on powerpc/cell.
381 </para>
382 </sect3>
383 <sect3 id="BAD_IRQ_flow_handler">
384 <title>Bad IRQ flow handler</title>
385 <para>
386 handle_bad_irq is used for spurious interrupts which
387 have no real handler assigned..
388 </para>
389 </sect3>
371 </sect2> 390 </sect2>
372 <sect2 id="Quirks_and_optimizations"> 391 <sect2 id="Quirks_and_optimizations">
373 <title>Quirks and optimizations</title> 392 <title>Quirks and optimizations</title>
@@ -410,6 +429,7 @@ if (desc->chip->irq_eoi)
410 <listitem><para>irq_mask_ack() - Optional, recommended for performance</para></listitem> 429 <listitem><para>irq_mask_ack() - Optional, recommended for performance</para></listitem>
411 <listitem><para>irq_mask()</para></listitem> 430 <listitem><para>irq_mask()</para></listitem>
412 <listitem><para>irq_unmask()</para></listitem> 431 <listitem><para>irq_unmask()</para></listitem>
432 <listitem><para>irq_eoi() - Optional, required for eoi flow handlers</para></listitem>
413 <listitem><para>irq_retrigger() - Optional</para></listitem> 433 <listitem><para>irq_retrigger() - Optional</para></listitem>
414 <listitem><para>irq_set_type() - Optional</para></listitem> 434 <listitem><para>irq_set_type() - Optional</para></listitem>
415 <listitem><para>irq_set_wake() - Optional</para></listitem> 435 <listitem><para>irq_set_wake() - Optional</para></listitem>
@@ -424,32 +444,24 @@ if (desc->chip->irq_eoi)
424 <chapter id="doirq"> 444 <chapter id="doirq">
425 <title>__do_IRQ entry point</title> 445 <title>__do_IRQ entry point</title>
426 <para> 446 <para>
427 The original implementation __do_IRQ() is an alternative entry 447 The original implementation __do_IRQ() was an alternative entry
428 point for all types of interrupts. 448 point for all types of interrupts. It not longer exists.
429 </para> 449 </para>
430 <para> 450 <para>
431 This handler turned out to be not suitable for all 451 This handler turned out to be not suitable for all
432 interrupt hardware and was therefore reimplemented with split 452 interrupt hardware and was therefore reimplemented with split
433 functionality for egde/level/simple/percpu interrupts. This is not 453 functionality for edge/level/simple/percpu interrupts. This is not
434 only a functional optimization. It also shortens code paths for 454 only a functional optimization. It also shortens code paths for
435 interrupts. 455 interrupts.
436 </para> 456 </para>
437 <para>
438 To make use of the split implementation, replace the call to
439 __do_IRQ by a call to desc->handle_irq() and associate
440 the appropriate handler function to desc->handle_irq().
441 In most cases the generic handler implementations should
442 be sufficient.
443 </para>
444 </chapter> 457 </chapter>
445 458
446 <chapter id="locking"> 459 <chapter id="locking">
447 <title>Locking on SMP</title> 460 <title>Locking on SMP</title>
448 <para> 461 <para>
449 The locking of chip registers is up to the architecture that 462 The locking of chip registers is up to the architecture that
450 defines the chip primitives. There is a chip->lock field that can be used 463 defines the chip primitives. The per-irq structure is
451 for serialization, but the generic layer does not touch it. The per-irq 464 protected via desc->lock, by the generic layer.
452 structure is protected via desc->lock, by the generic layer.
453 </para> 465 </para>
454 </chapter> 466 </chapter>
455 <chapter id="structs"> 467 <chapter id="structs">
diff --git a/Documentation/DocBook/media-entities.tmpl b/Documentation/DocBook/media-entities.tmpl
index 5d259c632cdf..fea63b45471a 100644
--- a/Documentation/DocBook/media-entities.tmpl
+++ b/Documentation/DocBook/media-entities.tmpl
@@ -294,6 +294,7 @@
294<!ENTITY sub-srggb10 SYSTEM "v4l/pixfmt-srggb10.xml"> 294<!ENTITY sub-srggb10 SYSTEM "v4l/pixfmt-srggb10.xml">
295<!ENTITY sub-srggb8 SYSTEM "v4l/pixfmt-srggb8.xml"> 295<!ENTITY sub-srggb8 SYSTEM "v4l/pixfmt-srggb8.xml">
296<!ENTITY sub-y10 SYSTEM "v4l/pixfmt-y10.xml"> 296<!ENTITY sub-y10 SYSTEM "v4l/pixfmt-y10.xml">
297<!ENTITY sub-y12 SYSTEM "v4l/pixfmt-y12.xml">
297<!ENTITY sub-pixfmt SYSTEM "v4l/pixfmt.xml"> 298<!ENTITY sub-pixfmt SYSTEM "v4l/pixfmt.xml">
298<!ENTITY sub-cropcap SYSTEM "v4l/vidioc-cropcap.xml"> 299<!ENTITY sub-cropcap SYSTEM "v4l/vidioc-cropcap.xml">
299<!ENTITY sub-dbg-g-register SYSTEM "v4l/vidioc-dbg-g-register.xml"> 300<!ENTITY sub-dbg-g-register SYSTEM "v4l/vidioc-dbg-g-register.xml">
diff --git a/Documentation/DocBook/v4l/media-ioc-setup-link.xml b/Documentation/DocBook/v4l/media-ioc-setup-link.xml
index 2331e76ded17..cec97af4dab4 100644
--- a/Documentation/DocBook/v4l/media-ioc-setup-link.xml
+++ b/Documentation/DocBook/v4l/media-ioc-setup-link.xml
@@ -34,7 +34,7 @@
34 <varlistentry> 34 <varlistentry>
35 <term><parameter>request</parameter></term> 35 <term><parameter>request</parameter></term>
36 <listitem> 36 <listitem>
37 <para>MEDIA_IOC_ENUM_LINKS</para> 37 <para>MEDIA_IOC_SETUP_LINK</para>
38 </listitem> 38 </listitem>
39 </varlistentry> 39 </varlistentry>
40 <varlistentry> 40 <varlistentry>
diff --git a/Documentation/DocBook/v4l/pixfmt-y12.xml b/Documentation/DocBook/v4l/pixfmt-y12.xml
new file mode 100644
index 000000000000..ff417b858cc9
--- /dev/null
+++ b/Documentation/DocBook/v4l/pixfmt-y12.xml
@@ -0,0 +1,79 @@
1<refentry id="V4L2-PIX-FMT-Y12">
2 <refmeta>
3 <refentrytitle>V4L2_PIX_FMT_Y12 ('Y12 ')</refentrytitle>
4 &manvol;
5 </refmeta>
6 <refnamediv>
7 <refname><constant>V4L2_PIX_FMT_Y12</constant></refname>
8 <refpurpose>Grey-scale image</refpurpose>
9 </refnamediv>
10 <refsect1>
11 <title>Description</title>
12
13 <para>This is a grey-scale image with a depth of 12 bits per pixel. Pixels
14are stored in 16-bit words with unused high bits padded with 0. The least
15significant byte is stored at lower memory addresses (little-endian).</para>
16
17 <example>
18 <title><constant>V4L2_PIX_FMT_Y12</constant> 4 &times; 4
19pixel image</title>
20
21 <formalpara>
22 <title>Byte Order.</title>
23 <para>Each cell is one byte.
24 <informaltable frame="none">
25 <tgroup cols="9" align="center">
26 <colspec align="left" colwidth="2*" />
27 <tbody valign="top">
28 <row>
29 <entry>start&nbsp;+&nbsp;0:</entry>
30 <entry>Y'<subscript>00low</subscript></entry>
31 <entry>Y'<subscript>00high</subscript></entry>
32 <entry>Y'<subscript>01low</subscript></entry>
33 <entry>Y'<subscript>01high</subscript></entry>
34 <entry>Y'<subscript>02low</subscript></entry>
35 <entry>Y'<subscript>02high</subscript></entry>
36 <entry>Y'<subscript>03low</subscript></entry>
37 <entry>Y'<subscript>03high</subscript></entry>
38 </row>
39 <row>
40 <entry>start&nbsp;+&nbsp;8:</entry>
41 <entry>Y'<subscript>10low</subscript></entry>
42 <entry>Y'<subscript>10high</subscript></entry>
43 <entry>Y'<subscript>11low</subscript></entry>
44 <entry>Y'<subscript>11high</subscript></entry>
45 <entry>Y'<subscript>12low</subscript></entry>
46 <entry>Y'<subscript>12high</subscript></entry>
47 <entry>Y'<subscript>13low</subscript></entry>
48 <entry>Y'<subscript>13high</subscript></entry>
49 </row>
50 <row>
51 <entry>start&nbsp;+&nbsp;16:</entry>
52 <entry>Y'<subscript>20low</subscript></entry>
53 <entry>Y'<subscript>20high</subscript></entry>
54 <entry>Y'<subscript>21low</subscript></entry>
55 <entry>Y'<subscript>21high</subscript></entry>
56 <entry>Y'<subscript>22low</subscript></entry>
57 <entry>Y'<subscript>22high</subscript></entry>
58 <entry>Y'<subscript>23low</subscript></entry>
59 <entry>Y'<subscript>23high</subscript></entry>
60 </row>
61 <row>
62 <entry>start&nbsp;+&nbsp;24:</entry>
63 <entry>Y'<subscript>30low</subscript></entry>
64 <entry>Y'<subscript>30high</subscript></entry>
65 <entry>Y'<subscript>31low</subscript></entry>
66 <entry>Y'<subscript>31high</subscript></entry>
67 <entry>Y'<subscript>32low</subscript></entry>
68 <entry>Y'<subscript>32high</subscript></entry>
69 <entry>Y'<subscript>33low</subscript></entry>
70 <entry>Y'<subscript>33high</subscript></entry>
71 </row>
72 </tbody>
73 </tgroup>
74 </informaltable>
75 </para>
76 </formalpara>
77 </example>
78 </refsect1>
79</refentry>
diff --git a/Documentation/DocBook/v4l/pixfmt.xml b/Documentation/DocBook/v4l/pixfmt.xml
index c6fdcbbd1b41..40af4beb48b9 100644
--- a/Documentation/DocBook/v4l/pixfmt.xml
+++ b/Documentation/DocBook/v4l/pixfmt.xml
@@ -696,6 +696,7 @@ information.</para>
696 &sub-packed-yuv; 696 &sub-packed-yuv;
697 &sub-grey; 697 &sub-grey;
698 &sub-y10; 698 &sub-y10;
699 &sub-y12;
699 &sub-y16; 700 &sub-y16;
700 &sub-yuyv; 701 &sub-yuyv;
701 &sub-uyvy; 702 &sub-uyvy;
diff --git a/Documentation/DocBook/v4l/subdev-formats.xml b/Documentation/DocBook/v4l/subdev-formats.xml
index 7041127d6dfc..d7ccd25edcc1 100644
--- a/Documentation/DocBook/v4l/subdev-formats.xml
+++ b/Documentation/DocBook/v4l/subdev-formats.xml
@@ -456,6 +456,23 @@
456 <entry>b<subscript>1</subscript></entry> 456 <entry>b<subscript>1</subscript></entry>
457 <entry>b<subscript>0</subscript></entry> 457 <entry>b<subscript>0</subscript></entry>
458 </row> 458 </row>
459 <row id="V4L2-MBUS-FMT-SGBRG8-1X8">
460 <entry>V4L2_MBUS_FMT_SGBRG8_1X8</entry>
461 <entry>0x3013</entry>
462 <entry></entry>
463 <entry>-</entry>
464 <entry>-</entry>
465 <entry>-</entry>
466 <entry>-</entry>
467 <entry>g<subscript>7</subscript></entry>
468 <entry>g<subscript>6</subscript></entry>
469 <entry>g<subscript>5</subscript></entry>
470 <entry>g<subscript>4</subscript></entry>
471 <entry>g<subscript>3</subscript></entry>
472 <entry>g<subscript>2</subscript></entry>
473 <entry>g<subscript>1</subscript></entry>
474 <entry>g<subscript>0</subscript></entry>
475 </row>
459 <row id="V4L2-MBUS-FMT-SGRBG8-1X8"> 476 <row id="V4L2-MBUS-FMT-SGRBG8-1X8">
460 <entry>V4L2_MBUS_FMT_SGRBG8_1X8</entry> 477 <entry>V4L2_MBUS_FMT_SGRBG8_1X8</entry>
461 <entry>0x3002</entry> 478 <entry>0x3002</entry>
@@ -473,6 +490,23 @@
473 <entry>g<subscript>1</subscript></entry> 490 <entry>g<subscript>1</subscript></entry>
474 <entry>g<subscript>0</subscript></entry> 491 <entry>g<subscript>0</subscript></entry>
475 </row> 492 </row>
493 <row id="V4L2-MBUS-FMT-SRGGB8-1X8">
494 <entry>V4L2_MBUS_FMT_SRGGB8_1X8</entry>
495 <entry>0x3014</entry>
496 <entry></entry>
497 <entry>-</entry>
498 <entry>-</entry>
499 <entry>-</entry>
500 <entry>-</entry>
501 <entry>r<subscript>7</subscript></entry>
502 <entry>r<subscript>6</subscript></entry>
503 <entry>r<subscript>5</subscript></entry>
504 <entry>r<subscript>4</subscript></entry>
505 <entry>r<subscript>3</subscript></entry>
506 <entry>r<subscript>2</subscript></entry>
507 <entry>r<subscript>1</subscript></entry>
508 <entry>r<subscript>0</subscript></entry>
509 </row>
476 <row id="V4L2-MBUS-FMT-SBGGR10-DPCM8-1X8"> 510 <row id="V4L2-MBUS-FMT-SBGGR10-DPCM8-1X8">
477 <entry>V4L2_MBUS_FMT_SBGGR10_DPCM8_1X8</entry> 511 <entry>V4L2_MBUS_FMT_SBGGR10_DPCM8_1X8</entry>
478 <entry>0x300b</entry> 512 <entry>0x300b</entry>
@@ -2159,6 +2193,31 @@
2159 <entry>u<subscript>1</subscript></entry> 2193 <entry>u<subscript>1</subscript></entry>
2160 <entry>u<subscript>0</subscript></entry> 2194 <entry>u<subscript>0</subscript></entry>
2161 </row> 2195 </row>
2196 <row id="V4L2-MBUS-FMT-Y12-1X12">
2197 <entry>V4L2_MBUS_FMT_Y12_1X12</entry>
2198 <entry>0x2013</entry>
2199 <entry></entry>
2200 <entry>-</entry>
2201 <entry>-</entry>
2202 <entry>-</entry>
2203 <entry>-</entry>
2204 <entry>-</entry>
2205 <entry>-</entry>
2206 <entry>-</entry>
2207 <entry>-</entry>
2208 <entry>y<subscript>11</subscript></entry>
2209 <entry>y<subscript>10</subscript></entry>
2210 <entry>y<subscript>9</subscript></entry>
2211 <entry>y<subscript>8</subscript></entry>
2212 <entry>y<subscript>7</subscript></entry>
2213 <entry>y<subscript>6</subscript></entry>
2214 <entry>y<subscript>5</subscript></entry>
2215 <entry>y<subscript>4</subscript></entry>
2216 <entry>y<subscript>3</subscript></entry>
2217 <entry>y<subscript>2</subscript></entry>
2218 <entry>y<subscript>1</subscript></entry>
2219 <entry>y<subscript>0</subscript></entry>
2220 </row>
2162 <row id="V4L2-MBUS-FMT-UYVY8-1X16"> 2221 <row id="V4L2-MBUS-FMT-UYVY8-1X16">
2163 <entry>V4L2_MBUS_FMT_UYVY8_1X16</entry> 2222 <entry>V4L2_MBUS_FMT_UYVY8_1X16</entry>
2164 <entry>0x200f</entry> 2223 <entry>0x200f</entry>
diff --git a/Documentation/RCU/00-INDEX b/Documentation/RCU/00-INDEX
index 71b6f500ddb9..1d7a885761f5 100644
--- a/Documentation/RCU/00-INDEX
+++ b/Documentation/RCU/00-INDEX
@@ -21,7 +21,7 @@ rcu.txt
21RTFP.txt 21RTFP.txt
22 - List of RCU papers (bibliography) going back to 1980. 22 - List of RCU papers (bibliography) going back to 1980.
23stallwarn.txt 23stallwarn.txt
24 - RCU CPU stall warnings (CONFIG_RCU_CPU_STALL_DETECTOR) 24 - RCU CPU stall warnings (module parameter rcu_cpu_stall_suppress)
25torture.txt 25torture.txt
26 - RCU Torture Test Operation (CONFIG_RCU_TORTURE_TEST) 26 - RCU Torture Test Operation (CONFIG_RCU_TORTURE_TEST)
27trace.txt 27trace.txt
diff --git a/Documentation/RCU/stallwarn.txt b/Documentation/RCU/stallwarn.txt
index 862c08ef1fde..4e959208f736 100644
--- a/Documentation/RCU/stallwarn.txt
+++ b/Documentation/RCU/stallwarn.txt
@@ -1,22 +1,25 @@
1Using RCU's CPU Stall Detector 1Using RCU's CPU Stall Detector
2 2
3The CONFIG_RCU_CPU_STALL_DETECTOR kernel config parameter enables 3The rcu_cpu_stall_suppress module parameter enables RCU's CPU stall
4RCU's CPU stall detector, which detects conditions that unduly delay 4detector, which detects conditions that unduly delay RCU grace periods.
5RCU grace periods. The stall detector's idea of what constitutes 5This module parameter enables CPU stall detection by default, but
6"unduly delayed" is controlled by a set of C preprocessor macros: 6may be overridden via boot-time parameter or at runtime via sysfs.
7The stall detector's idea of what constitutes "unduly delayed" is
8controlled by a set of kernel configuration variables and cpp macros:
7 9
8RCU_SECONDS_TILL_STALL_CHECK 10CONFIG_RCU_CPU_STALL_TIMEOUT
9 11
10 This macro defines the period of time that RCU will wait from 12 This kernel configuration parameter defines the period of time
11 the beginning of a grace period until it issues an RCU CPU 13 that RCU will wait from the beginning of a grace period until it
12 stall warning. This time period is normally ten seconds. 14 issues an RCU CPU stall warning. This time period is normally
15 ten seconds.
13 16
14RCU_SECONDS_TILL_STALL_RECHECK 17RCU_SECONDS_TILL_STALL_RECHECK
15 18
16 This macro defines the period of time that RCU will wait after 19 This macro defines the period of time that RCU will wait after
17 issuing a stall warning until it issues another stall warning 20 issuing a stall warning until it issues another stall warning
18 for the same stall. This time period is normally set to thirty 21 for the same stall. This time period is normally set to three
19 seconds. 22 times the check interval plus thirty seconds.
20 23
21RCU_STALL_RAT_DELAY 24RCU_STALL_RAT_DELAY
22 25
diff --git a/Documentation/RCU/trace.txt b/Documentation/RCU/trace.txt
index 6a8c73f55b80..c078ad48f7a1 100644
--- a/Documentation/RCU/trace.txt
+++ b/Documentation/RCU/trace.txt
@@ -10,34 +10,46 @@ for rcutree and next for rcutiny.
10 10
11CONFIG_TREE_RCU and CONFIG_TREE_PREEMPT_RCU debugfs Files and Formats 11CONFIG_TREE_RCU and CONFIG_TREE_PREEMPT_RCU debugfs Files and Formats
12 12
13These implementations of RCU provides five debugfs files under the 13These implementations of RCU provides several debugfs files under the
14top-level directory RCU: rcu/rcudata (which displays fields in struct 14top-level directory "rcu":
15rcu_data), rcu/rcudata.csv (which is a .csv spreadsheet version of 15
16rcu/rcudata), rcu/rcugp (which displays grace-period counters), 16rcu/rcudata:
17rcu/rcuhier (which displays the struct rcu_node hierarchy), and 17 Displays fields in struct rcu_data.
18rcu/rcu_pending (which displays counts of the reasons that the 18rcu/rcudata.csv:
19rcu_pending() function decided that there was core RCU work to do). 19 Comma-separated values spreadsheet version of rcudata.
20rcu/rcugp:
21 Displays grace-period counters.
22rcu/rcuhier:
23 Displays the struct rcu_node hierarchy.
24rcu/rcu_pending:
25 Displays counts of the reasons rcu_pending() decided that RCU had
26 work to do.
27rcu/rcutorture:
28 Displays rcutorture test progress.
29rcu/rcuboost:
30 Displays RCU boosting statistics. Only present if
31 CONFIG_RCU_BOOST=y.
20 32
21The output of "cat rcu/rcudata" looks as follows: 33The output of "cat rcu/rcudata" looks as follows:
22 34
23rcu_sched: 35rcu_sched:
24 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 36 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
25 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 37 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
26 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 38 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
27 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 39 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
28 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 40 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
29 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 41 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
30 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 42 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
31 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 43 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
32rcu_bh: 44rcu_bh:
33 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 45 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
34 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 46 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
35 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 47 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
36 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 48 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
37 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 49 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
38 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 50 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
39 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 51 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
40 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 52 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
41 53
42The first section lists the rcu_data structures for rcu_sched, the second 54The first section lists the rcu_data structures for rcu_sched, the second
43for rcu_bh. Note that CONFIG_TREE_PREEMPT_RCU kernels will have an 55for 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.
52 substantially larger than the number of actual CPUs. 64 substantially larger than the number of actual CPUs.
53 65
54o "c" is the count of grace periods that this CPU believes have 66o "c" is the count of grace periods that this CPU believes have
55 completed. CPUs in dynticks idle mode may lag quite a ways 67 completed. Offlined CPUs and CPUs in dynticks idle mode may
56 behind, for example, CPU 4 under "rcu_sched" above, which has 68 lag quite a ways behind, for example, CPU 6 under "rcu_sched"
57 slept through the past 25 RCU grace periods. It is not unusual 69 above, which has been offline through not quite 40,000 RCU grace
58 to see CPUs lagging by thousands of grace periods. 70 periods. It is not unusual to see CPUs lagging by thousands of
71 grace periods.
59 72
60o "g" is the count of grace periods that this CPU believes have 73o "g" is the count of grace periods that this CPU believes have
61 started. Again, CPUs in dynticks idle mode may lag behind. 74 started. Again, offlined CPUs and CPUs in dynticks idle mode
62 If the "c" and "g" values are equal, this CPU has already 75 may lag behind. If the "c" and "g" values are equal, this CPU
63 reported a quiescent state for the last RCU grace period that 76 has already reported a quiescent state for the last RCU grace
64 it is aware of, otherwise, the CPU believes that it owes RCU a 77 period that it is aware of, otherwise, the CPU believes that it
65 quiescent state. 78 owes RCU a quiescent state.
66 79
67o "pq" indicates that this CPU has passed through a quiescent state 80o "pq" indicates that this CPU has passed through a quiescent state
68 for the current grace period. It is possible for "pq" to be 81 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
81 the next grace period! 94 the next grace period!
82 95
83o "qp" indicates that RCU still expects a quiescent state from 96o "qp" indicates that RCU still expects a quiescent state from
84 this CPU. 97 this CPU. Offlined CPUs and CPUs in dyntick idle mode might
98 well have qp=1, which is OK: RCU is still ignoring them.
85 99
86o "dt" is the current value of the dyntick counter that is incremented 100o "dt" is the current value of the dyntick counter that is incremented
87 when entering or leaving dynticks idle state, either by the 101 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
108 122
109o "of" is the number of times that some other CPU has forced a 123o "of" is the number of times that some other CPU has forced a
110 quiescent state on behalf of this CPU due to this CPU being 124 quiescent state on behalf of this CPU due to this CPU being
111 offline. In a perfect world, this might neve happen, but it 125 offline. In a perfect world, this might never happen, but it
112 turns out that offlining and onlining a CPU can take several grace 126 turns out that offlining and onlining a CPU can take several grace
113 periods, and so there is likely to be an extended period of time 127 periods, and so there is likely to be an extended period of time
114 when RCU believes that the CPU is online when it really is not. 128 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
125 of what state they are in (new, waiting for grace period to 139 of what state they are in (new, waiting for grace period to
126 start, waiting for grace period to end, ready to invoke). 140 start, waiting for grace period to end, ready to invoke).
127 141
142o "qs" gives an indication of the state of the callback queue
143 with four characters:
144
145 "N" Indicates that there are callbacks queued that are not
146 ready to be handled by the next grace period, and thus
147 will be handled by the grace period following the next
148 one.
149
150 "R" Indicates that there are callbacks queued that are
151 ready to be handled by the next grace period.
152
153 "W" Indicates that there are callbacks queued that are
154 waiting on the current grace period.
155
156 "D" Indicates that there are callbacks queued that have
157 already been handled by a prior grace period, and are
158 thus waiting to be invoked. Note that callbacks in
159 the process of being invoked are not counted here.
160 Callbacks in the process of being invoked are those
161 that have been removed from the rcu_data structures
162 queues by rcu_do_batch(), but which have not yet been
163 invoked.
164
165 If there are no callbacks in a given one of the above states,
166 the corresponding character is replaced by ".".
167
168o "kt" is the per-CPU kernel-thread state. The digit preceding
169 the first slash is zero if there is no work pending and 1
170 otherwise. The character between the first pair of slashes is
171 as follows:
172
173 "S" The kernel thread is stopped, in other words, all
174 CPUs corresponding to this rcu_node structure are
175 offline.
176
177 "R" The kernel thread is running.
178
179 "W" The kernel thread is waiting because there is no work
180 for it to do.
181
182 "O" The kernel thread is waiting because it has been
183 forced off of its designated CPU or because its
184 ->cpus_allowed mask permits it to run on other than
185 its designated CPU.
186
187 "Y" The kernel thread is yielding to avoid hogging CPU.
188
189 "?" Unknown value, indicates a bug.
190
191 The number after the final slash is the CPU that the kthread
192 is actually running on.
193
194o "ktl" is the low-order 16 bits (in hexadecimal) of the count of
195 the number of times that this CPU's per-CPU kthread has gone
196 through its loop servicing invoke_rcu_cpu_kthread() requests.
197
128o "b" is the batch limit for this CPU. If more than this number 198o "b" is the batch limit for this CPU. If more than this number
129 of RCU callbacks is ready to invoke, then the remainder will 199 of RCU callbacks is ready to invoke, then the remainder will
130 be deferred. 200 be deferred.
@@ -174,14 +244,14 @@ o "gpnum" is the number of grace periods that have started. It is
174The output of "cat rcu/rcuhier" looks as follows, with very long lines: 244The output of "cat rcu/rcuhier" looks as follows, with very long lines:
175 245
176c=6902 g=6903 s=2 jfq=3 j=72c7 nfqs=13142/nfqsng=0(13142) fqlh=6 246c=6902 g=6903 s=2 jfq=3 j=72c7 nfqs=13142/nfqsng=0(13142) fqlh=6
1771/1 .>. 0:127 ^0 2471/1 ..>. 0:127 ^0
1783/3 .>. 0:35 ^0 0/0 .>. 36:71 ^1 0/0 .>. 72:107 ^2 0/0 .>. 108:127 ^3 2483/3 ..>. 0:35 ^0 0/0 ..>. 36:71 ^1 0/0 ..>. 72:107 ^2 0/0 ..>. 108:127 ^3
1793/3f .>. 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 2493/3f ..>. 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
180rcu_bh: 250rcu_bh:
181c=-226 g=-226 s=1 jfq=-5701 j=72c7 nfqs=88/nfqsng=0(88) fqlh=0 251c=-226 g=-226 s=1 jfq=-5701 j=72c7 nfqs=88/nfqsng=0(88) fqlh=0
1820/1 .>. 0:127 ^0 2520/1 ..>. 0:127 ^0
1830/3 .>. 0:35 ^0 0/0 .>. 36:71 ^1 0/0 .>. 72:107 ^2 0/0 .>. 108:127 ^3 2530/3 ..>. 0:35 ^0 0/0 ..>. 36:71 ^1 0/0 ..>. 72:107 ^2 0/0 ..>. 108:127 ^3
1840/3f .>. 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 2540/3f ..>. 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
185 255
186This is once again split into "rcu_sched" and "rcu_bh" portions, 256This is once again split into "rcu_sched" and "rcu_bh" portions,
187and CONFIG_TREE_PREEMPT_RCU kernels will again have an additional 257and 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
240 current grace period. 310 current grace period.
241 311
242 o The characters separated by the ">" indicate the state 312 o The characters separated by the ">" indicate the state
243 of the blocked-tasks lists. A "T" preceding the ">" 313 of the blocked-tasks lists. A "G" preceding the ">"
244 indicates that at least one task blocked in an RCU 314 indicates that at least one task blocked in an RCU
245 read-side critical section blocks the current grace 315 read-side critical section blocks the current grace
246 period, while a "." preceding the ">" indicates otherwise. 316 period, while a "E" preceding the ">" indicates that
247 The character following the ">" indicates similarly for 317 at least one task blocked in an RCU read-side critical
248 the next grace period. A "T" should appear in this 318 section blocks the current expedited grace period.
249 field only for rcu-preempt. 319 A "T" character following the ">" indicates that at
320 least one task is blocked within an RCU read-side
321 critical section, regardless of whether any current
322 grace period (expedited or normal) is inconvenienced.
323 A "." character appears if the corresponding condition
324 does not hold, so that "..>." indicates that no tasks
325 are blocked. In contrast, "GE>T" indicates maximal
326 inconvenience from blocked tasks.
250 327
251 o The numbers separated by the ":" are the range of CPUs 328 o The numbers separated by the ":" are the range of CPUs
252 served by this struct rcu_node. This can be helpful 329 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
328 is due to short-circuit evaluation in rcu_pending(). 405 is due to short-circuit evaluation in rcu_pending().
329 406
330 407
408The output of "cat rcu/rcutorture" looks as follows:
409
410rcutorture test sequence: 0 (test in progress)
411rcutorture update version number: 615
412
413The first line shows the number of rcutorture tests that have completed
414since boot. If a test is currently running, the "(test in progress)"
415string will appear as shown above. The second line shows the number of
416update cycles that the current test has started, or zero if there is
417no test in progress.
418
419
420The output of "cat rcu/rcuboost" looks as follows:
421
4220:5 tasks=.... kt=W ntb=0 neb=0 nnb=0 j=2f95 bt=300f
423 balk: nt=0 egt=989 bt=0 nb=0 ny=0 nos=16
4246:7 tasks=.... kt=W ntb=0 neb=0 nnb=0 j=2f95 bt=300f
425 balk: nt=0 egt=225 bt=0 nb=0 ny=0 nos=6
426
427This information is output only for rcu_preempt. Each two-line entry
428corresponds to a leaf rcu_node strcuture. The fields are as follows:
429
430o "n:m" is the CPU-number range for the corresponding two-line
431 entry. In the sample output above, the first entry covers
432 CPUs zero through five and the second entry covers CPUs 6
433 and 7.
434
435o "tasks=TNEB" gives the state of the various segments of the
436 rnp->blocked_tasks list:
437
438 "T" This indicates that there are some tasks that blocked
439 while running on one of the corresponding CPUs while
440 in an RCU read-side critical section.
441
442 "N" This indicates that some of the blocked tasks are preventing
443 the current normal (non-expedited) grace period from
444 completing.
445
446 "E" This indicates that some of the blocked tasks are preventing
447 the current expedited grace period from completing.
448
449 "B" This indicates that some of the blocked tasks are in
450 need of RCU priority boosting.
451
452 Each character is replaced with "." if the corresponding
453 condition does not hold.
454
455o "kt" is the state of the RCU priority-boosting kernel
456 thread associated with the corresponding rcu_node structure.
457 The state can be one of the following:
458
459 "S" The kernel thread is stopped, in other words, all
460 CPUs corresponding to this rcu_node structure are
461 offline.
462
463 "R" The kernel thread is running.
464
465 "W" The kernel thread is waiting because there is no work
466 for it to do.
467
468 "Y" The kernel thread is yielding to avoid hogging CPU.
469
470 "?" Unknown value, indicates a bug.
471
472o "ntb" is the number of tasks boosted.
473
474o "neb" is the number of tasks boosted in order to complete an
475 expedited grace period.
476
477o "nnb" is the number of tasks boosted in order to complete a
478 normal (non-expedited) grace period. When boosting a task
479 that was blocking both an expedited and a normal grace period,
480 it is counted against the expedited total above.
481
482o "j" is the low-order 16 bits of the jiffies counter in
483 hexadecimal.
484
485o "bt" is the low-order 16 bits of the value that the jiffies
486 counter will have when we next start boosting, assuming that
487 the current grace period does not end beforehand. This is
488 also in hexadecimal.
489
490o "balk: nt" counts the number of times we didn't boost (in
491 other words, we balked) even though it was time to boost because
492 there were no blocked tasks to boost. This situation occurs
493 when there is one blocked task on one rcu_node structure and
494 none on some other rcu_node structure.
495
496o "egt" counts the number of times we balked because although
497 there were blocked tasks, none of them were blocking the
498 current grace period, whether expedited or otherwise.
499
500o "bt" counts the number of times we balked because boosting
501 had already been initiated for the current grace period.
502
503o "nb" counts the number of times we balked because there
504 was at least one task blocking the current non-expedited grace
505 period that never had blocked. If it is already running, it
506 just won't help to boost its priority!
507
508o "ny" counts the number of times we balked because it was
509 not yet time to start boosting.
510
511o "nos" counts the number of times we balked for other
512 reasons, e.g., the grace period ended first.
513
514
331CONFIG_TINY_RCU and CONFIG_TINY_PREEMPT_RCU debugfs Files and Formats 515CONFIG_TINY_RCU and CONFIG_TINY_PREEMPT_RCU debugfs Files and Formats
332 516
333These implementations of RCU provides a single debugfs file under the 517These 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
394o "nnb" is the number of normal grace periods that have had 578o "nnb" is the number of normal grace periods that have had
395 to resort to RCU priority boosting since boot. 579 to resort to RCU priority boosting since boot.
396 580
397o "j" is the low-order 12 bits of the jiffies counter in hexadecimal. 581o "j" is the low-order 16 bits of the jiffies counter in hexadecimal.
398 582
399o "bt" is the low-order 12 bits of the value that the jiffies counter 583o "bt" is the low-order 16 bits of the value that the jiffies counter
400 will have at the next time that boosting is scheduled to begin. 584 will have at the next time that boosting is scheduled to begin.
401 585
402o In the line beginning with "normal balk", the fields are as follows: 586o In the line beginning with "normal balk", the fields are as follows:
diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt
index b6ed61c95856..7c163477fcd8 100644
--- a/Documentation/cgroups/memory.txt
+++ b/Documentation/cgroups/memory.txt
@@ -52,8 +52,10 @@ Brief summary of control files.
52 tasks # attach a task(thread) and show list of threads 52 tasks # attach a task(thread) and show list of threads
53 cgroup.procs # show list of processes 53 cgroup.procs # show list of processes
54 cgroup.event_control # an interface for event_fd() 54 cgroup.event_control # an interface for event_fd()
55 memory.usage_in_bytes # show current memory(RSS+Cache) usage. 55 memory.usage_in_bytes # show current res_counter usage for memory
56 memory.memsw.usage_in_bytes # show current memory+Swap usage 56 (See 5.5 for details)
57 memory.memsw.usage_in_bytes # show current res_counter usage for memory+Swap
58 (See 5.5 for details)
57 memory.limit_in_bytes # set/show limit of memory usage 59 memory.limit_in_bytes # set/show limit of memory usage
58 memory.memsw.limit_in_bytes # set/show limit of memory+Swap usage 60 memory.memsw.limit_in_bytes # set/show limit of memory+Swap usage
59 memory.failcnt # show the number of memory usage hits limits 61 memory.failcnt # show the number of memory usage hits limits
@@ -453,6 +455,15 @@ memory under it will be reclaimed.
453You can reset failcnt by writing 0 to failcnt file. 455You can reset failcnt by writing 0 to failcnt file.
454# echo 0 > .../memory.failcnt 456# echo 0 > .../memory.failcnt
455 457
4585.5 usage_in_bytes
459
460For efficiency, as other kernel components, memory cgroup uses some optimization
461to avoid unnecessary cacheline false sharing. usage_in_bytes is affected by the
462method and doesn't show 'exact' value of memory(and swap) usage, it's an fuzz
463value for efficient access. (Of course, when necessary, it's synchronized.)
464If you want to know more exact memory usage, you should use RSS+CACHE(+SWAP)
465value in memory.stat(see 5.2).
466
4566. Hierarchy support 4676. Hierarchy support
457 468
458The memory controller supports a deep hierarchy and hierarchical accounting. 469The memory controller supports a deep hierarchy and hierarchical accounting.
diff --git a/Documentation/devicetree/bindings/crypto/fsl-sec4.txt b/Documentation/devicetree/bindings/crypto/fsl-sec4.txt
new file mode 100644
index 000000000000..bf57ecd5d73a
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/fsl-sec4.txt
@@ -0,0 +1,397 @@
1=====================================================================
2SEC 4 Device Tree Binding
3Copyright (C) 2008-2011 Freescale Semiconductor Inc.
4
5 CONTENTS
6 -Overview
7 -SEC 4 Node
8 -Job Ring Node
9 -Run Time Integrity Check (RTIC) Node
10 -Run Time Integrity Check (RTIC) Memory Node
11 -Secure Non-Volatile Storage (SNVS) Node
12 -Full Example
13
14NOTE: the SEC 4 is also known as Freescale's Cryptographic Accelerator
15Accelerator and Assurance Module (CAAM).
16
17=====================================================================
18Overview
19
20DESCRIPTION
21
22SEC 4 h/w can process requests from 2 types of sources.
231. DPAA Queue Interface (HW interface between Queue Manager & SEC 4).
242. Job Rings (HW interface between cores & SEC 4 registers).
25
26High Speed Data Path Configuration:
27
28HW interface between QM & SEC 4 and also BM & SEC 4, on DPAA-enabled parts
29such as the P4080. The number of simultaneous dequeues the QI can make is
30equal to the number of Descriptor Controller (DECO) engines in a particular
31SEC version. E.g., the SEC 4.0 in the P4080 has 5 DECOs and can thus
32dequeue from 5 subportals simultaneously.
33
34Job Ring Data Path Configuration:
35
36Each JR is located on a separate 4k page, they may (or may not) be made visible
37in the memory partition devoted to a particular core. The P4080 has 4 JRs, so
38up to 4 JRs can be configured; and all 4 JRs process requests in parallel.
39
40=====================================================================
41SEC 4 Node
42
43Description
44
45 Node defines the base address of the SEC 4 block.
46 This block specifies the address range of all global
47 configuration registers for the SEC 4 block. It
48 also receives interrupts from the Run Time Integrity Check
49 (RTIC) function within the SEC 4 block.
50
51PROPERTIES
52
53 - compatible
54 Usage: required
55 Value type: <string>
56 Definition: Must include "fsl,sec-v4.0"
57
58 - #address-cells
59 Usage: required
60 Value type: <u32>
61 Definition: A standard property. Defines the number of cells
62 for representing physical addresses in child nodes.
63
64 - #size-cells
65 Usage: required
66 Value type: <u32>
67 Definition: A standard property. Defines the number of cells
68 for representing the size of physical addresses in
69 child nodes.
70
71 - reg
72 Usage: required
73 Value type: <prop-encoded-array>
74 Definition: A standard property. Specifies the physical
75 address and length of the SEC4 configuration registers.
76 registers
77
78 - ranges
79 Usage: required
80 Value type: <prop-encoded-array>
81 Definition: A standard property. Specifies the physical address
82 range of the SEC 4.0 register space (-SNVS not included). A
83 triplet that includes the child address, parent address, &
84 length.
85
86 - interrupts
87 Usage: required
88 Value type: <prop_encoded-array>
89 Definition: Specifies the interrupts generated by this
90 device. The value of the interrupts property
91 consists of one interrupt specifier. The format
92 of the specifier is defined by the binding document
93 describing the node's interrupt parent.
94
95 - interrupt-parent
96 Usage: (required if interrupt property is defined)
97 Value type: <phandle>
98 Definition: A single <phandle> value that points
99 to the interrupt parent to which the child domain
100 is being mapped.
101
102 Note: All other standard properties (see the ePAPR) are allowed
103 but are optional.
104
105
106EXAMPLE
107 crypto@300000 {
108 compatible = "fsl,sec-v4.0";
109 #address-cells = <1>;
110 #size-cells = <1>;
111 reg = <0x300000 0x10000>;
112 ranges = <0 0x300000 0x10000>;
113 interrupt-parent = <&mpic>;
114 interrupts = <92 2>;
115 };
116
117=====================================================================
118Job Ring (JR) Node
119
120 Child of the crypto node defines data processing interface to SEC 4
121 across the peripheral bus for purposes of processing
122 cryptographic descriptors. The specified address
123 range can be made visible to one (or more) cores.
124 The interrupt defined for this node is controlled within
125 the address range of this node.
126
127 - compatible
128 Usage: required
129 Value type: <string>
130 Definition: Must include "fsl,sec-v4.0-job-ring"
131
132 - reg
133 Usage: required
134 Value type: <prop-encoded-array>
135 Definition: Specifies a two JR parameters: an offset from
136 the parent physical address and the length the JR registers.
137
138 - fsl,liodn
139 Usage: optional-but-recommended
140 Value type: <prop-encoded-array>
141 Definition:
142 Specifies the LIODN to be used in conjunction with
143 the ppid-to-liodn table that specifies the PPID to LIODN mapping.
144 Needed if the PAMU is used. Value is a 12 bit value
145 where value is a LIODN ID for this JR. This property is
146 normally set by boot firmware.
147
148 - interrupts
149 Usage: required
150 Value type: <prop_encoded-array>
151 Definition: Specifies the interrupts generated by this
152 device. The value of the interrupts property
153 consists of one interrupt specifier. The format
154 of the specifier is defined by the binding document
155 describing the node's interrupt parent.
156
157 - interrupt-parent
158 Usage: (required if interrupt property is defined)
159 Value type: <phandle>
160 Definition: A single <phandle> value that points
161 to the interrupt parent to which the child domain
162 is being mapped.
163
164EXAMPLE
165 jr@1000 {
166 compatible = "fsl,sec-v4.0-job-ring";
167 reg = <0x1000 0x1000>;
168 fsl,liodn = <0x081>;
169 interrupt-parent = <&mpic>;
170 interrupts = <88 2>;
171 };
172
173
174=====================================================================
175Run Time Integrity Check (RTIC) Node
176
177 Child node of the crypto node. Defines a register space that
178 contains up to 5 sets of addresses and their lengths (sizes) that
179 will be checked at run time. After an initial hash result is
180 calculated, these addresses are checked by HW to monitor any
181 change. If any memory is modified, a Security Violation is
182 triggered (see SNVS definition).
183
184
185 - compatible
186 Usage: required
187 Value type: <string>
188 Definition: Must include "fsl,sec-v4.0-rtic".
189
190 - #address-cells
191 Usage: required
192 Value type: <u32>
193 Definition: A standard property. Defines the number of cells
194 for representing physical addresses in child nodes. Must
195 have a value of 1.
196
197 - #size-cells
198 Usage: required
199 Value type: <u32>
200 Definition: A standard property. Defines the number of cells
201 for representing the size of physical addresses in
202 child nodes. Must have a value of 1.
203
204 - reg
205 Usage: required
206 Value type: <prop-encoded-array>
207 Definition: A standard property. Specifies a two parameters:
208 an offset from the parent physical address and the length
209 the SEC4 registers.
210
211 - ranges
212 Usage: required
213 Value type: <prop-encoded-array>
214 Definition: A standard property. Specifies the physical address
215 range of the SEC 4 register space (-SNVS not included). A
216 triplet that includes the child address, parent address, &
217 length.
218
219EXAMPLE
220 rtic@6000 {
221 compatible = "fsl,sec-v4.0-rtic";
222 #address-cells = <1>;
223 #size-cells = <1>;
224 reg = <0x6000 0x100>;
225 ranges = <0x0 0x6100 0xe00>;
226 };
227
228=====================================================================
229Run Time Integrity Check (RTIC) Memory Node
230 A child node that defines individual RTIC memory regions that are used to
231 perform run-time integrity check of memory areas that should not modified.
232 The node defines a register that contains the memory address &
233 length (combined) and a second register that contains the hash result
234 in big endian format.
235
236 - compatible
237 Usage: required
238 Value type: <string>
239 Definition: Must include "fsl,sec-v4.0-rtic-memory".
240
241 - reg
242 Usage: required
243 Value type: <prop-encoded-array>
244 Definition: A standard property. Specifies two parameters:
245 an offset from the parent physical address and the length:
246
247 1. The location of the RTIC memory address & length registers.
248 2. The location RTIC hash result.
249
250 - fsl,rtic-region
251 Usage: optional-but-recommended
252 Value type: <prop-encoded-array>
253 Definition:
254 Specifies the HW address (36 bit address) for this region
255 followed by the length of the HW partition to be checked;
256 the address is represented as a 64 bit quantity followed
257 by a 32 bit length.
258
259 - fsl,liodn
260 Usage: optional-but-recommended
261 Value type: <prop-encoded-array>
262 Definition:
263 Specifies the LIODN to be used in conjunction with
264 the ppid-to-liodn table that specifies the PPID to LIODN
265 mapping. Needed if the PAMU is used. Value is a 12 bit value
266 where value is a LIODN ID for this RTIC memory region. This
267 property is normally set by boot firmware.
268
269EXAMPLE
270 rtic-a@0 {
271 compatible = "fsl,sec-v4.0-rtic-memory";
272 reg = <0x00 0x20 0x100 0x80>;
273 fsl,liodn = <0x03c>;
274 fsl,rtic-region = <0x12345678 0x12345678 0x12345678>;
275 };
276
277=====================================================================
278Secure Non-Volatile Storage (SNVS) Node
279
280 Node defines address range and the associated
281 interrupt for the SNVS function. This function
282 monitors security state information & reports
283 security violations.
284
285 - compatible
286 Usage: required
287 Value type: <string>
288 Definition: Must include "fsl,sec-v4.0-mon".
289
290 - reg
291 Usage: required
292 Value type: <prop-encoded-array>
293 Definition: A standard property. Specifies the physical
294 address and length of the SEC4 configuration
295 registers.
296
297 - interrupts
298 Usage: required
299 Value type: <prop_encoded-array>
300 Definition: Specifies the interrupts generated by this
301 device. The value of the interrupts property
302 consists of one interrupt specifier. The format
303 of the specifier is defined by the binding document
304 describing the node's interrupt parent.
305
306 - interrupt-parent
307 Usage: (required if interrupt property is defined)
308 Value type: <phandle>
309 Definition: A single <phandle> value that points
310 to the interrupt parent to which the child domain
311 is being mapped.
312
313EXAMPLE
314 sec_mon@314000 {
315 compatible = "fsl,sec-v4.0-mon";
316 reg = <0x314000 0x1000>;
317 interrupt-parent = <&mpic>;
318 interrupts = <93 2>;
319 };
320
321=====================================================================
322FULL EXAMPLE
323
324 crypto: crypto@300000 {
325 compatible = "fsl,sec-v4.0";
326 #address-cells = <1>;
327 #size-cells = <1>;
328 reg = <0x300000 0x10000>;
329 ranges = <0 0x300000 0x10000>;
330 interrupt-parent = <&mpic>;
331 interrupts = <92 2>;
332
333 sec_jr0: jr@1000 {
334 compatible = "fsl,sec-v4.0-job-ring";
335 reg = <0x1000 0x1000>;
336 interrupt-parent = <&mpic>;
337 interrupts = <88 2>;
338 };
339
340 sec_jr1: jr@2000 {
341 compatible = "fsl,sec-v4.0-job-ring";
342 reg = <0x2000 0x1000>;
343 interrupt-parent = <&mpic>;
344 interrupts = <89 2>;
345 };
346
347 sec_jr2: jr@3000 {
348 compatible = "fsl,sec-v4.0-job-ring";
349 reg = <0x3000 0x1000>;
350 interrupt-parent = <&mpic>;
351 interrupts = <90 2>;
352 };
353
354 sec_jr3: jr@4000 {
355 compatible = "fsl,sec-v4.0-job-ring";
356 reg = <0x4000 0x1000>;
357 interrupt-parent = <&mpic>;
358 interrupts = <91 2>;
359 };
360
361 rtic@6000 {
362 compatible = "fsl,sec-v4.0-rtic";
363 #address-cells = <1>;
364 #size-cells = <1>;
365 reg = <0x6000 0x100>;
366 ranges = <0x0 0x6100 0xe00>;
367
368 rtic_a: rtic-a@0 {
369 compatible = "fsl,sec-v4.0-rtic-memory";
370 reg = <0x00 0x20 0x100 0x80>;
371 };
372
373 rtic_b: rtic-b@20 {
374 compatible = "fsl,sec-v4.0-rtic-memory";
375 reg = <0x20 0x20 0x200 0x80>;
376 };
377
378 rtic_c: rtic-c@40 {
379 compatible = "fsl,sec-v4.0-rtic-memory";
380 reg = <0x40 0x20 0x300 0x80>;
381 };
382
383 rtic_d: rtic-d@60 {
384 compatible = "fsl,sec-v4.0-rtic-memory";
385 reg = <0x60 0x20 0x500 0x80>;
386 };
387 };
388 };
389
390 sec_mon: sec_mon@314000 {
391 compatible = "fsl,sec-v4.0-mon";
392 reg = <0x314000 0x1000>;
393 interrupt-parent = <&mpic>;
394 interrupts = <93 2>;
395 };
396
397=====================================================================
diff --git a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt
new file mode 100755
index 000000000000..1a729f089866
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt
@@ -0,0 +1,61 @@
1CAN Device Tree Bindings
2------------------------
32011 Freescale Semiconductor, Inc.
4
5fsl,flexcan-v1.0 nodes
6-----------------------
7In addition to the required compatible-, reg- and interrupt-properties, you can
8also specify which clock source shall be used for the controller.
9
10CPI Clock- Can Protocol Interface Clock
11 This CLK_SRC bit of CTRL(control register) selects the clock source to
12 the CAN Protocol Interface(CPI) to be either the peripheral clock
13 (driven by the PLL) or the crystal oscillator clock. The selected clock
14 is the one fed to the prescaler to generate the Serial Clock (Sclock).
15 The PRESDIV field of CTRL(control register) controls a prescaler that
16 generates the Serial Clock (Sclock), whose period defines the
17 time quantum used to compose the CAN waveform.
18
19Can Engine Clock Source
20 There are two sources for CAN clock
21 - Platform Clock It represents the bus clock
22 - Oscillator Clock
23
24 Peripheral Clock (PLL)
25 --------------
26 |
27 --------- -------------
28 | |CPI Clock | Prescaler | Sclock
29 | |---------------->| (1.. 256) |------------>
30 --------- -------------
31 | |
32 -------------- ---------------------CLK_SRC
33 Oscillator Clock
34
35- fsl,flexcan-clock-source : CAN Engine Clock Source.This property selects
36 the peripheral clock. PLL clock is fed to the
37 prescaler to generate the Serial Clock (Sclock).
38 Valid values are "oscillator" and "platform"
39 "oscillator": CAN engine clock source is oscillator clock.
40 "platform" The CAN engine clock source is the bus clock
41 (platform clock).
42
43- fsl,flexcan-clock-divider : for the reference and system clock, an additional
44 clock divider can be specified.
45- clock-frequency: frequency required to calculate the bitrate for FlexCAN.
46
47Note:
48 - v1.0 of flexcan-v1.0 represent the IP block version for P1010 SOC.
49 - P1010 does not have oscillator as the Clock Source.So the default
50 Clock Source is platform clock.
51Examples:
52
53 can0@1c000 {
54 compatible = "fsl,flexcan-v1.0";
55 reg = <0x1c000 0x1000>;
56 interrupts = <48 0x2>;
57 interrupt-parent = <&mpic>;
58 fsl,flexcan-clock-source = "platform";
59 fsl,flexcan-clock-divider = <2>;
60 clock-frequency = <fixed by u-boot>;
61 };
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/ifc.txt b/Documentation/devicetree/bindings/powerpc/fsl/ifc.txt
new file mode 100644
index 000000000000..939a26d541f6
--- /dev/null
+++ b/Documentation/devicetree/bindings/powerpc/fsl/ifc.txt
@@ -0,0 +1,76 @@
1Integrated Flash Controller
2
3Properties:
4- name : Should be ifc
5- compatible : should contain "fsl,ifc". The version of the integrated
6 flash controller can be found in the IFC_REV register at
7 offset zero.
8
9- #address-cells : Should be either two or three. The first cell is the
10 chipselect number, and the remaining cells are the
11 offset into the chipselect.
12- #size-cells : Either one or two, depending on how large each chipselect
13 can be.
14- reg : Offset and length of the register set for the device
15- interrupts : IFC has two interrupts. The first one is the "common"
16 interrupt(CM_EVTER_STAT), and second is the NAND interrupt
17 (NAND_EVTER_STAT).
18
19- ranges : Each range corresponds to a single chipselect, and covers
20 the entire access window as configured.
21
22Child device nodes describe the devices connected to IFC such as NOR (e.g.
23cfi-flash) and NAND (fsl,ifc-nand). There might be board specific devices
24like FPGAs, CPLDs, etc.
25
26Example:
27
28 ifc@ffe1e000 {
29 compatible = "fsl,ifc", "simple-bus";
30 #address-cells = <2>;
31 #size-cells = <1>;
32 reg = <0x0 0xffe1e000 0 0x2000>;
33 interrupts = <16 2 19 2>;
34
35 /* NOR, NAND Flashes and CPLD on board */
36 ranges = <0x0 0x0 0x0 0xee000000 0x02000000
37 0x1 0x0 0x0 0xffa00000 0x00010000
38 0x3 0x0 0x0 0xffb00000 0x00020000>;
39
40 flash@0,0 {
41 #address-cells = <1>;
42 #size-cells = <1>;
43 compatible = "cfi-flash";
44 reg = <0x0 0x0 0x2000000>;
45 bank-width = <2>;
46 device-width = <1>;
47
48 partition@0 {
49 /* 32MB for user data */
50 reg = <0x0 0x02000000>;
51 label = "NOR Data";
52 };
53 };
54
55 flash@1,0 {
56 #address-cells = <1>;
57 #size-cells = <1>;
58 compatible = "fsl,ifc-nand";
59 reg = <0x1 0x0 0x10000>;
60
61 partition@0 {
62 /* This location must not be altered */
63 /* 1MB for u-boot Bootloader Image */
64 reg = <0x0 0x00100000>;
65 label = "NAND U-Boot Image";
66 read-only;
67 };
68 };
69
70 cpld@3,0 {
71 #address-cells = <1>;
72 #size-cells = <1>;
73 compatible = "fsl,p1010rdb-cpld";
74 reg = <0x3 0x0 0x000001f>;
75 };
76 };
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/mpic-timer.txt b/Documentation/devicetree/bindings/powerpc/fsl/mpic-timer.txt
new file mode 100644
index 000000000000..df41958140e8
--- /dev/null
+++ b/Documentation/devicetree/bindings/powerpc/fsl/mpic-timer.txt
@@ -0,0 +1,38 @@
1* Freescale MPIC timers
2
3Required properties:
4- compatible: "fsl,mpic-global-timer"
5
6- reg : Contains two regions. The first is the main timer register bank
7 (GTCCRxx, GTBCRxx, GTVPRxx, GTDRxx). The second is the timer control
8 register (TCRx) for the group.
9
10- fsl,available-ranges: use <start count> style section to define which
11 timer interrupts can be used. This property is optional; without this,
12 all timers within the group can be used.
13
14- interrupts: one interrupt per timer in the group, in order, starting
15 with timer zero. If timer-available-ranges is present, only the
16 interrupts that correspond to available timers shall be present.
17
18Example:
19 /* Note that this requires #interrupt-cells to be 4 */
20 timer0: timer@41100 {
21 compatible = "fsl,mpic-global-timer";
22 reg = <0x41100 0x100 0x41300 4>;
23
24 /* Another AMP partition is using timers 0 and 1 */
25 fsl,available-ranges = <2 2>;
26
27 interrupts = <2 0 3 0
28 3 0 3 0>;
29 };
30
31 timer1: timer@42100 {
32 compatible = "fsl,mpic-global-timer";
33 reg = <0x42100 0x100 0x42300 4>;
34 interrupts = <4 0 3 0
35 5 0 3 0
36 6 0 3 0
37 7 0 3 0>;
38 };
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt b/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt
index 4f6145859aab..2cf38bd841fd 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt
@@ -190,7 +190,7 @@ EXAMPLE 4
190 */ 190 */
191 timer0: timer@41100 { 191 timer0: timer@41100 {
192 compatible = "fsl,mpic-global-timer"; 192 compatible = "fsl,mpic-global-timer";
193 reg = <0x41100 0x100>; 193 reg = <0x41100 0x100 0x41300 4>;
194 interrupts = <0 0 3 0 194 interrupts = <0 0 3 0
195 1 0 3 0 195 1 0 3 0
196 2 0 3 0 196 2 0 3 0
diff --git a/Documentation/driver-model/bus.txt b/Documentation/driver-model/bus.txt
index 5001b7511626..6754b2df8aa1 100644
--- a/Documentation/driver-model/bus.txt
+++ b/Documentation/driver-model/bus.txt
@@ -3,24 +3,7 @@ Bus Types
3 3
4Definition 4Definition
5~~~~~~~~~~ 5~~~~~~~~~~
6 6See the kerneldoc for the struct bus_type.
7struct bus_type {
8 char * name;
9
10 struct subsystem subsys;
11 struct kset drivers;
12 struct kset devices;
13
14 struct bus_attribute * bus_attrs;
15 struct device_attribute * dev_attrs;
16 struct driver_attribute * drv_attrs;
17
18 int (*match)(struct device * dev, struct device_driver * drv);
19 int (*hotplug) (struct device *dev, char **envp,
20 int num_envp, char *buffer, int buffer_size);
21 int (*suspend)(struct device * dev, pm_message_t state);
22 int (*resume)(struct device * dev);
23};
24 7
25int bus_register(struct bus_type * bus); 8int bus_register(struct bus_type * bus);
26 9
diff --git a/Documentation/driver-model/class.txt b/Documentation/driver-model/class.txt
index 548505f14aa4..1fefc480a80b 100644
--- a/Documentation/driver-model/class.txt
+++ b/Documentation/driver-model/class.txt
@@ -27,22 +27,7 @@ The device class structure looks like:
27typedef int (*devclass_add)(struct device *); 27typedef int (*devclass_add)(struct device *);
28typedef void (*devclass_remove)(struct device *); 28typedef void (*devclass_remove)(struct device *);
29 29
30struct device_class { 30See the kerneldoc for the struct class.
31 char * name;
32 rwlock_t lock;
33 u32 devnum;
34 struct list_head node;
35
36 struct list_head drivers;
37 struct list_head intf_list;
38
39 struct driver_dir_entry dir;
40 struct driver_dir_entry device_dir;
41 struct driver_dir_entry driver_dir;
42
43 devclass_add add_device;
44 devclass_remove remove_device;
45};
46 31
47A typical device class definition would look like: 32A typical device class definition would look like:
48 33
diff --git a/Documentation/driver-model/device.txt b/Documentation/driver-model/device.txt
index a124f3126b0d..b2ff42685bcb 100644
--- a/Documentation/driver-model/device.txt
+++ b/Documentation/driver-model/device.txt
@@ -2,96 +2,7 @@
2The Basic Device Structure 2The Basic Device Structure
3~~~~~~~~~~~~~~~~~~~~~~~~~~ 3~~~~~~~~~~~~~~~~~~~~~~~~~~
4 4
5struct device { 5See the kerneldoc for the struct device.
6 struct list_head g_list;
7 struct list_head node;
8 struct list_head bus_list;
9 struct list_head driver_list;
10 struct list_head intf_list;
11 struct list_head children;
12 struct device * parent;
13
14 char name[DEVICE_NAME_SIZE];
15 char bus_id[BUS_ID_SIZE];
16
17 spinlock_t lock;
18 atomic_t refcount;
19
20 struct bus_type * bus;
21 struct driver_dir_entry dir;
22
23 u32 class_num;
24
25 struct device_driver *driver;
26 void *driver_data;
27 void *platform_data;
28
29 u32 current_state;
30 unsigned char *saved_state;
31
32 void (*release)(struct device * dev);
33};
34
35Fields
36~~~~~~
37g_list: Node in the global device list.
38
39node: Node in device's parent's children list.
40
41bus_list: Node in device's bus's devices list.
42
43driver_list: Node in device's driver's devices list.
44
45intf_list: List of intf_data. There is one structure allocated for
46 each interface that the device supports.
47
48children: List of child devices.
49
50parent: *** FIXME ***
51
52name: ASCII description of device.
53 Example: " 3Com Corporation 3c905 100BaseTX [Boomerang]"
54
55bus_id: ASCII representation of device's bus position. This
56 field should be a name unique across all devices on the
57 bus type the device belongs to.
58
59 Example: PCI bus_ids are in the form of
60 <bus number>:<slot number>.<function number>
61 This name is unique across all PCI devices in the system.
62
63lock: Spinlock for the device.
64
65refcount: Reference count on the device.
66
67bus: Pointer to struct bus_type that device belongs to.
68
69dir: Device's sysfs directory.
70
71class_num: Class-enumerated value of the device.
72
73driver: Pointer to struct device_driver that controls the device.
74
75driver_data: Driver-specific data.
76
77platform_data: Platform data specific to the device.
78
79 Example: for devices on custom boards, as typical of embedded
80 and SOC based hardware, Linux often uses platform_data to point
81 to board-specific structures describing devices and how they
82 are wired. That can include what ports are available, chip
83 variants, which GPIO pins act in what additional roles, and so
84 on. This shrinks the "Board Support Packages" (BSPs) and
85 minimizes board-specific #ifdefs in drivers.
86
87current_state: Current power state of the device.
88
89saved_state: Pointer to saved state of the device. This is usable by
90 the device driver controlling the device.
91
92release: Callback to free the device after all references have
93 gone away. This should be set by the allocator of the
94 device (i.e. the bus driver that discovered the device).
95 6
96 7
97Programming Interface 8Programming Interface
diff --git a/Documentation/driver-model/driver.txt b/Documentation/driver-model/driver.txt
index d2cd6fb8ba9e..4421135826a2 100644
--- a/Documentation/driver-model/driver.txt
+++ b/Documentation/driver-model/driver.txt
@@ -1,23 +1,7 @@
1 1
2Device Drivers 2Device Drivers
3 3
4struct device_driver { 4See the kerneldoc for the struct device_driver.
5 char * name;
6 struct bus_type * bus;
7
8 struct completion unloaded;
9 struct kobject kobj;
10 list_t devices;
11
12 struct module *owner;
13
14 int (*probe) (struct device * dev);
15 int (*remove) (struct device * dev);
16
17 int (*suspend) (struct device * dev, pm_message_t state);
18 int (*resume) (struct device * dev);
19};
20
21 5
22 6
23Allocation 7Allocation
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 9536652eadbf..19132cadc18d 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -35,17 +35,6 @@ Who: Luis R. Rodriguez <lrodriguez@atheros.com>
35 35
36--------------------------- 36---------------------------
37 37
38What: AR9170USB
39When: 2.6.40
40
41Why: This driver is deprecated and the firmware is no longer
42 maintained. The replacement driver "carl9170" has been
43 around for a while, so the devices are still supported.
44
45Who: Christian Lamparter <chunkeey@googlemail.com>
46
47---------------------------
48
49What: IRQF_SAMPLE_RANDOM 38What: IRQF_SAMPLE_RANDOM
50Check: IRQF_SAMPLE_RANDOM 39Check: IRQF_SAMPLE_RANDOM
51When: July 2009 40When: July 2009
@@ -405,16 +394,6 @@ Who: anybody or Florian Mickler <florian@mickler.org>
405 394
406---------------------------- 395----------------------------
407 396
408What: capifs
409When: February 2011
410Files: drivers/isdn/capi/capifs.*
411Why: udev fully replaces this special file system that only contains CAPI
412 NCCI TTY device nodes. User space (pppdcapiplugin) works without
413 noticing the difference.
414Who: Jan Kiszka <jan.kiszka@web.de>
415
416----------------------------
417
418What: KVM paravirt mmu host support 397What: KVM paravirt mmu host support
419When: January 2011 398When: January 2011
420Why: The paravirt mmu host support is slower than non-paravirt mmu, both 399Why: The paravirt mmu host support is slower than non-paravirt mmu, both
@@ -460,14 +439,6 @@ Who: Thomas Gleixner <tglx@linutronix.de>
460 439
461---------------------------- 440----------------------------
462 441
463What: The acpi_sleep=s4_nonvs command line option
464When: 2.6.37
465Files: arch/x86/kernel/acpi/sleep.c
466Why: superseded by acpi_sleep=nonvs
467Who: Rafael J. Wysocki <rjw@sisk.pl>
468
469----------------------------
470
471What: PCI DMA unmap state API 442What: PCI DMA unmap state API
472When: August 2012 443When: August 2012
473Why: PCI DMA unmap state API (include/linux/pci-dma.h) was replaced 444Why: PCI DMA unmap state API (include/linux/pci-dma.h) was replaced
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index b0b814d75ca1..60740e8ecb37 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -836,7 +836,6 @@ Provides counts of softirq handlers serviced since boot time, for each cpu.
836 TASKLET: 0 0 0 290 836 TASKLET: 0 0 0 290
837 SCHED: 27035 26983 26971 26746 837 SCHED: 27035 26983 26971 26746
838 HRTIMER: 0 0 0 0 838 HRTIMER: 0 0 0 0
839 RCU: 1678 1769 2178 2250
840 839
841 840
8421.3 IDE devices in /proc/ide 8411.3 IDE devices in /proc/ide
diff --git a/Documentation/flexible-arrays.txt b/Documentation/flexible-arrays.txt
index cb8a3a00cc92..df904aec9904 100644
--- a/Documentation/flexible-arrays.txt
+++ b/Documentation/flexible-arrays.txt
@@ -66,10 +66,10 @@ trick is to ensure that any needed memory allocations are done before
66entering atomic context, using: 66entering atomic context, using:
67 67
68 int flex_array_prealloc(struct flex_array *array, unsigned int start, 68 int flex_array_prealloc(struct flex_array *array, unsigned int start,
69 unsigned int end, gfp_t flags); 69 unsigned int nr_elements, gfp_t flags);
70 70
71This function will ensure that memory for the elements indexed in the range 71This function will ensure that memory for the elements indexed in the range
72defined by start and end has been allocated. Thereafter, a 72defined by start and nr_elements has been allocated. Thereafter, a
73flex_array_put() call on an element in that range is guaranteed not to 73flex_array_put() call on an element in that range is guaranteed not to
74block. 74block.
75 75
diff --git a/Documentation/usb/hiddev.txt b/Documentation/hid/hiddev.txt
index 6e8c9f1d2f22..6e8c9f1d2f22 100644
--- a/Documentation/usb/hiddev.txt
+++ b/Documentation/hid/hiddev.txt
diff --git a/Documentation/hid/hidraw.txt b/Documentation/hid/hidraw.txt
new file mode 100644
index 000000000000..029e6cb9a7e8
--- /dev/null
+++ b/Documentation/hid/hidraw.txt
@@ -0,0 +1,119 @@
1 HIDRAW - Raw Access to USB and Bluetooth Human Interface Devices
2 ==================================================================
3
4The hidraw driver provides a raw interface to USB and Bluetooth Human
5Interface Devices (HIDs). It differs from hiddev in that reports sent and
6received are not parsed by the HID parser, but are sent to and received from
7the device unmodified.
8
9Hidraw should be used if the userspace application knows exactly how to
10communicate with the hardware device, and is able to construct the HID
11reports manually. This is often the case when making userspace drivers for
12custom HID devices.
13
14Hidraw is also useful for communicating with non-conformant HID devices
15which send and receive data in a way that is inconsistent with their report
16descriptors. Because hiddev parses reports which are sent and received
17through it, checking them against the device's report descriptor, such
18communication with these non-conformant devices is impossible using hiddev.
19Hidraw is the only alternative, short of writing a custom kernel driver, for
20these non-conformant devices.
21
22A benefit of hidraw is that its use by userspace applications is independent
23of the underlying hardware type. Currently, Hidraw is implemented for USB
24and Bluetooth. In the future, as new hardware bus types are developed which
25use the HID specification, hidraw will be expanded to add support for these
26new bus types.
27
28Hidraw uses a dynamic major number, meaning that udev should be relied on to
29create hidraw device nodes. Udev will typically create the device nodes
30directly under /dev (eg: /dev/hidraw0). As this location is distribution-
31and udev rule-dependent, applications should use libudev to locate hidraw
32devices attached to the system. There is a tutorial on libudev with a
33working example at:
34 http://www.signal11.us/oss/udev/
35
36The HIDRAW API
37---------------
38
39read()
40-------
41read() will read a queued report received from the HID device. On USB
42devices, the reports read using read() are the reports sent from the device
43on the INTERRUPT IN endpoint. By default, read() will block until there is
44a report available to be read. read() can be made non-blocking, by passing
45the O_NONBLOCK flag to open(), or by setting the O_NONBLOCK flag using
46fcntl().
47
48On a device which uses numbered reports, the first byte of the returned data
49will be the report number; the report data follows, beginning in the second
50byte. For devices which do not use numbered reports, the report data
51will begin at the first byte.
52
53write()
54--------
55The write() function will write a report to the device. For USB devices, if
56the device has an INTERRUPT OUT endpoint, the report will be sent on that
57endpoint. If it does not, the report will be sent over the control endpoint,
58using a SET_REPORT transfer.
59
60The first byte of the buffer passed to write() should be set to the report
61number. If the device does not use numbered reports, the first byte should
62be set to 0. The report data itself should begin at the second byte.
63
64ioctl()
65--------
66Hidraw supports the following ioctls:
67
68HIDIOCGRDESCSIZE: Get Report Descriptor Size
69This ioctl will get the size of the device's report descriptor.
70
71HIDIOCGRDESC: Get Report Descriptor
72This ioctl returns the device's report descriptor using a
73hidraw_report_descriptor struct. Make sure to set the size field of the
74hidraw_report_descriptor struct to the size returned from HIDIOCGRDESCSIZE.
75
76HIDIOCGRAWINFO: Get Raw Info
77This ioctl will return a hidraw_devinfo struct containing the bus type, the
78vendor ID (VID), and product ID (PID) of the device. The bus type can be one
79of:
80 BUS_USB
81 BUS_HIL
82 BUS_BLUETOOTH
83 BUS_VIRTUAL
84which are defined in linux/input.h.
85
86HIDIOCGRAWNAME(len): Get Raw Name
87This ioctl returns a string containing the vendor and product strings of
88the device. The returned string is Unicode, UTF-8 encoded.
89
90HIDIOCGRAWPHYS(len): Get Physical Address
91This ioctl returns a string representing the physical address of the device.
92For USB devices, the string contains the physical path to the device (the
93USB controller, hubs, ports, etc). For Bluetooth devices, the string
94contains the hardware (MAC) address of the device.
95
96HIDIOCSFEATURE(len): Send a Feature Report
97This ioctl will send a feature report to the device. Per the HID
98specification, feature reports are always sent using the control endpoint.
99Set the first byte of the supplied buffer to the report number. For devices
100which do not use numbered reports, set the first byte to 0. The report data
101begins in the second byte. Make sure to set len accordingly, to one more
102than the length of the report (to account for the report number).
103
104HIDIOCGFEATURE(len): Get a Feature Report
105This ioctl will request a feature report from the device using the control
106endpoint. The first byte of the supplied buffer should be set to the report
107number of the requested report. For devices which do not use numbered
108reports, set the first byte to 0. The report will be returned starting at
109the first byte of the buffer (ie: the report number is not returned).
110
111Example
112---------
113In samples/, find hid-example.c, which shows examples of read(), write(),
114and all the ioctls for hidraw. The code may be used by anyone for any
115purpose, and can serve as a starting point for developing applications using
116hidraw.
117
118Document by:
119 Alan Ott <alan@signal11.us>, Signal 11 Software
diff --git a/Documentation/hwmon/adm1021 b/Documentation/hwmon/adm1021
index 03d02bfb3df1..02ad96cf9b2b 100644
--- a/Documentation/hwmon/adm1021
+++ b/Documentation/hwmon/adm1021
@@ -14,10 +14,6 @@ Supported chips:
14 Prefix: 'gl523sm' 14 Prefix: 'gl523sm'
15 Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e 15 Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
16 Datasheet: 16 Datasheet:
17 * Intel Xeon Processor
18 Prefix: - any other - may require 'force_adm1021' parameter
19 Addresses scanned: none
20 Datasheet: Publicly available at Intel website
21 * Maxim MAX1617 17 * Maxim MAX1617
22 Prefix: 'max1617' 18 Prefix: 'max1617'
23 Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e 19 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
91ADM1021-clones do faster measurements, but there is really no good reason 87ADM1021-clones do faster measurements, but there is really no good reason
92for that. 88for that.
93 89
94Xeon support
95------------
96 90
97Some Xeon processors have real max1617, adm1021, or compatible chips 91Netburst-based Xeon support
98within them, with two temperature sensors. 92---------------------------
99 93
100Other Xeons have chips with only one sensor. 94Some Xeon processors based on the Netburst (early Pentium 4, from 2001 to
952003) microarchitecture had real MAX1617, ADM1021, or compatible chips
96within them, with two temperature sensors. Other Xeon processors of this
97era (with 400 MHz FSB) had chips with only one temperature sensor.
101 98
102If you have a Xeon, and the adm1021 module loads, and both temperatures 99If you have such an old Xeon, and you get two valid temperatures when
103appear valid, then things are good. 100loading the adm1021 module, then things are good.
104 101
105If the adm1021 module doesn't load, you should try this: 102If nothing happens when loading the adm1021 module, and you are certain
106 modprobe adm1021 force_adm1021=BUS,ADDRESS 103that your specific Xeon processor model includes compatible sensors, you
107 ADDRESS can only be 0x18, 0x1a, 0x29, 0x2b, 0x4c, or 0x4e. 104will have to explicitly instantiate the sensor chips from user-space. See
105method 4 in Documentation/i2c/instantiating-devices. Possible slave
106addresses are 0x18, 0x1a, 0x29, 0x2b, 0x4c, or 0x4e. It is likely that
107only temp2 will be correct and temp1 will have to be ignored.
108 108
109If you have dual Xeons you may have appear to have two separate 109Previous generations of the Xeon processor (based on Pentium II/III)
110adm1021-compatible chips, or two single-temperature sensors, at distinct 110didn't have these sensors. Next generations of Xeon processors (533 MHz
111addresses. 111FSB and faster) lost them, until the Core-based generation which
112introduced integrated digital thermal sensors. These are supported by
113the coretemp driver.
diff --git a/Documentation/hwmon/lm90 b/Documentation/hwmon/lm90
index fa475c0a48a3..f3efd18e87f4 100644
--- a/Documentation/hwmon/lm90
+++ b/Documentation/hwmon/lm90
@@ -32,6 +32,16 @@ Supported chips:
32 Addresses scanned: I2C 0x4c and 0x4d 32 Addresses scanned: I2C 0x4c and 0x4d
33 Datasheet: Publicly available at the ON Semiconductor website 33 Datasheet: Publicly available at the ON Semiconductor website
34 http://www.onsemi.com/PowerSolutions/product.do?id=ADT7461 34 http://www.onsemi.com/PowerSolutions/product.do?id=ADT7461
35 * Analog Devices ADT7461A
36 Prefix: 'adt7461a'
37 Addresses scanned: I2C 0x4c and 0x4d
38 Datasheet: Publicly available at the ON Semiconductor website
39 http://www.onsemi.com/PowerSolutions/product.do?id=ADT7461A
40 * ON Semiconductor NCT1008
41 Prefix: 'nct1008'
42 Addresses scanned: I2C 0x4c and 0x4d
43 Datasheet: Publicly available at the ON Semiconductor website
44 http://www.onsemi.com/PowerSolutions/product.do?id=NCT1008
35 * Maxim MAX6646 45 * Maxim MAX6646
36 Prefix: 'max6646' 46 Prefix: 'max6646'
37 Addresses scanned: I2C 0x4d 47 Addresses scanned: I2C 0x4d
@@ -149,7 +159,7 @@ ADM1032:
149 * ALERT is triggered by open remote sensor. 159 * ALERT is triggered by open remote sensor.
150 * SMBus PEC support for Write Byte and Receive Byte transactions. 160 * SMBus PEC support for Write Byte and Receive Byte transactions.
151 161
152ADT7461: 162ADT7461, ADT7461A, NCT1008:
153 * Extended temperature range (breaks compatibility) 163 * Extended temperature range (breaks compatibility)
154 * Lower resolution for remote temperature 164 * Lower resolution for remote temperature
155 165
@@ -195,9 +205,9 @@ are exported, one for each channel, but these values are of course linked.
195Only the local hysteresis can be set from user-space, and the same delta 205Only the local hysteresis can be set from user-space, and the same delta
196applies to the remote hysteresis. 206applies to the remote hysteresis.
197 207
198The lm90 driver will not update its values more frequently than every 208The lm90 driver will not update its values more frequently than configured with
199other second; reading them more often will do no harm, but will return 209the update_interval attribute; reading them more often will do no harm, but will
200'old' values. 210return 'old' values.
201 211
202SMBus Alert Support 212SMBus Alert Support
203------------------- 213-------------------
@@ -205,11 +215,12 @@ SMBus Alert Support
205This driver has basic support for SMBus alert. When an alert is received, 215This driver has basic support for SMBus alert. When an alert is received,
206the status register is read and the faulty temperature channel is logged. 216the status register is read and the faulty temperature channel is logged.
207 217
208The Analog Devices chips (ADM1032 and ADT7461) do not implement the SMBus 218The Analog Devices chips (ADM1032, ADT7461 and ADT7461A) and ON
209alert protocol properly so additional care is needed: the ALERT output is 219Semiconductor chips (NCT1008) do not implement the SMBus alert protocol
210disabled when an alert is received, and is re-enabled only when the alarm 220properly so additional care is needed: the ALERT output is disabled when
211is gone. Otherwise the chip would block alerts from other chips in the bus 221an alert is received, and is re-enabled only when the alarm is gone.
212as long as the alarm is active. 222Otherwise the chip would block alerts from other chips in the bus as long
223as the alarm is active.
213 224
214PEC Support 225PEC Support
215----------- 226-----------
diff --git a/Documentation/ja_JP/HOWTO b/Documentation/ja_JP/HOWTO
index b63301a03811..050d37fe6d40 100644
--- a/Documentation/ja_JP/HOWTO
+++ b/Documentation/ja_JP/HOWTO
@@ -11,14 +11,14 @@ for non English (read: Japanese) speakers and is not intended as a
11fork. So if you have any comments or updates for this file, please try 11fork. So if you have any comments or updates for this file, please try
12to update the original English file first. 12to update the original English file first.
13 13
14Last Updated: 2008/10/24 14Last Updated: 2011/03/31
15================================== 15==================================
16これは、 16これは、
17linux-2.6.28/Documentation/HOWTO 17linux-2.6.38/Documentation/HOWTO
18の和訳です。 18の和訳です。
19 19
20翻訳団体: JF プロジェクト < http://www.linux.or.jp/JF/ > 20翻訳団体: JF プロジェクト < http://www.linux.or.jp/JF/ >
21翻訳日: 2008/10/24 21翻訳日: 2011/3/28
22翻訳者: Tsugikazu Shibata <tshibata at ab dot jp dot nec dot com> 22翻訳者: Tsugikazu Shibata <tshibata at ab dot jp dot nec dot com>
23校正者: 松倉さん <nbh--mats at nifty dot com> 23校正者: 松倉さん <nbh--mats at nifty dot com>
24 小林 雅典さん (Masanori Kobayasi) <zap03216 at nifty dot ne dot jp> 24 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
256 - メインの 2.6.x カーネルツリー 256 - メインの 2.6.x カーネルツリー
257 - 2.6.x.y -stable カーネルツリー 257 - 2.6.x.y -stable カーネルツリー
258 - 2.6.x -git カーネルパッチ 258 - 2.6.x -git カーネルパッチ
259 - 2.6.x -mm カーネルパッチ
260 - サブシステム毎のカーネルツリーとパッチ 259 - サブシステム毎のカーネルツリーとパッチ
260 - 統合テストのための 2.6.x -next カーネルツリー
261 261
2622.6.x カーネルツリー 2622.6.x カーネルツリー
263----------------- 263-----------------
@@ -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
268 268
269 - 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、 269 - 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、
270 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。 270 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。
271 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。 271 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。
272 大きな変更は git(カーネルのソース管理ツール、詳細は 272 大きな変更は git(カーネルのソース管理ツール、詳細は
273 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 273 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
274 チファイルの形式のまま送るのでも十分です。 274 チファイルの形式のまま送るのでも十分です。
275 275
276 - 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 276 - 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
333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 333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
334に生成されるので、より実験的です。 334に生成されるので、より実験的です。
335 335
3362.6.x -mm カーネルパッチ
337------------------------
338
339Andrew 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。
340Andrew 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
341linux-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
342とめます。
343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
344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、
345メインラインへ入れるように Linus にプッシュします。
346
347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
348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
349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
350れることは困難になります。
351
352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
353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。
354
355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、
356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
357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
358ストにフィードバックを提供してください。
359
360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
361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。
362
363-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
364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
365れます。
366
367サブシステム毎のカーネルツリーとパッチ 336サブシステム毎のカーネルツリーとパッチ
368------------------------------------------- 337-------------------------------------------
369 338
370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 339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
371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 340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
372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。 341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
373 342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、
374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- 343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
375 344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。
376 git ツリー- 345
377 - Kbuild の開発ツリー、Sam Ravnborg <sam@ravnborg.org> 346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
378 git.kernel.org:/pub/scm/linux/kernel/git/sam/kbuild.git 347quilt 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
379 348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
380 - ACPI の開発ツリー、 Len Brown <len.brown@intel.com> 349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
381 git.kernel.org:/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git 350す。
382
383 - Block の開発ツリー、Jens Axboe <axboe@suse.de>
384 git.kernel.org:/pub/scm/linux/kernel/git/axboe/linux-2.6-block.git
385
386 - DRM の開発ツリー、Dave Airlie <airlied@linux.ie>
387 git.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6.git
388
389 - ia64 の開発ツリー、Tony Luck <tony.luck@intel.com>
390 git.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6.git
391
392 - infiniband, Roland Dreier <rolandd@cisco.com>
393 git.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband.git
394
395 - libata, Jeff Garzik <jgarzik@pobox.com>
396 git.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git
397
398 - ネットワークドライバ, Jeff Garzik <jgarzik@pobox.com>
399 git.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git
400
401 - pcmcia, Dominik Brodowski <linux@dominikbrodowski.net>
402 git.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6.git
403
404 - SCSI, James Bottomley <James.Bottomley@hansenpartnership.com>
405 git.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git
406
407 - x86, Ingo Molnar <mingo@elte.hu>
408 git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
409
410 quilt ツリー-
411 - USB, ドライバコアと I2C, Greg Kroah-Hartman <gregkh@suse.de>
412 kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
413 351
414 その他のカーネルツリーは http://git.kernel.org/ と MAINTAINERS ファ 352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
415 イルに一覧表があります。 353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
354参照)。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
355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
356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
357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
358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
359http://patchwork.kernel.org/ でリストされています。
360
361統合テストのための 2.6.x -next カーネルツリー
362---------------------------------------------
363
364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
365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
366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
367ポジトリが存在します-
368 http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git
369 http://linux.f-seidel.de/linux-next/pmwiki/
370
371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
372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
373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
416 374
417バグレポート 375バグレポート
418------------- 376-------------
@@ -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
673じところからスタートしたのですから。 631じところからスタートしたのですから。
674 632
675Paolo Ciarrocchi に感謝、彼は彼の書いた "Development Process" 633Paolo Ciarrocchi に感謝、彼は彼の書いた "Development Process"
676(http://linux.tar.bz/articles/2.6-development_process)セクショ 634(http://lwn.net/Articles/94386/) セクションをこのテキストの原型にする
677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。 635ことを許可してくれました。Rundy Dunlap と Gerrit Huizenga はメーリング
678Rundy Dunlap と Gerrit Huizenga はメーリングリストでやるべきこととやっ 636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。
679てはいけないことのリストを提供してくれました。
680以下の人々のレビュー、コメント、貢献に感謝。 637以下の人々のレビュー、コメント、貢献に感謝。
681Pat Mochel, Hanna Linder, Randy Dunlap, Kay Sievers, 638Pat Mochel, Hanna Linder, Randy Dunlap, Kay Sievers,
682Vojtech Pavlik, Jan Kara, Josh Boyer, Kees Cook, Andrew Morton, Andi 639Vojtech Pavlik, Jan Kara, Josh Boyer, Kees Cook, Andrew Morton, Andi
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index cc85a9278190..c603ef7b0568 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -245,7 +245,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
245 245
246 acpi_sleep= [HW,ACPI] Sleep options 246 acpi_sleep= [HW,ACPI] Sleep options
247 Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig, 247 Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig,
248 old_ordering, s4_nonvs, sci_force_enable } 248 old_ordering, nonvs, sci_force_enable }
249 See Documentation/power/video.txt for information on 249 See Documentation/power/video.txt for information on
250 s3_bios and s3_mode. 250 s3_bios and s3_mode.
251 s3_beep is for debugging; it makes the PC's speaker beep 251 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.
1664 noexec=on: enable non-executable mappings (default) 1664 noexec=on: enable non-executable mappings (default)
1665 noexec=off: disable non-executable mappings 1665 noexec=off: disable non-executable mappings
1666 1666
1667 nosmep [X86]
1668 Disable SMEP (Supervisor Mode Execution Protection)
1669 even if it is supported by processor.
1670
1667 noexec32 [X86-64] 1671 noexec32 [X86-64]
1668 This affects only 32-bit executables. 1672 This affects only 32-bit executables.
1669 noexec32=on: enable non-executable mappings (default) 1673 noexec32=on: enable non-executable mappings (default)
diff --git a/Documentation/networking/batman-adv.txt b/Documentation/networking/batman-adv.txt
index ee496eb2f4a6..88d4afbdef98 100644
--- a/Documentation/networking/batman-adv.txt
+++ b/Documentation/networking/batman-adv.txt
@@ -1,4 +1,4 @@
1[state: 27-01-2011] 1[state: 17-04-2011]
2 2
3BATMAN-ADV 3BATMAN-ADV
4---------- 4----------
@@ -19,6 +19,7 @@ duce the overhead to a minimum. It does not depend on any (other)
19network driver, and can be used on wifi as well as ethernet lan, 19network driver, and can be used on wifi as well as ethernet lan,
20vpn, etc ... (anything with ethernet-style layer 2). 20vpn, etc ... (anything with ethernet-style layer 2).
21 21
22
22CONFIGURATION 23CONFIGURATION
23------------- 24-------------
24 25
@@ -160,13 +161,13 @@ face. Each entry can/has to have the following values:
160-> "TQ mac value" - src mac's link quality towards mac address 161-> "TQ mac value" - src mac's link quality towards mac address
161 of a neighbor originator's interface which 162 of a neighbor originator's interface which
162 is being used for routing 163 is being used for routing
163-> "HNA mac" - HNA announced by source mac 164-> "TT mac" - TT announced by source mac
164-> "PRIMARY" - this is a primary interface 165-> "PRIMARY" - this is a primary interface
165-> "SEC mac" - secondary mac address of source 166-> "SEC mac" - secondary mac address of source
166 (requires preceding PRIMARY) 167 (requires preceding PRIMARY)
167 168
168The TQ value has a range from 4 to 255 with 255 being the best. 169The TQ value has a range from 4 to 255 with 255 being the best.
169The HNA entries are showing which hosts are connected to the mesh 170The TT entries are showing which hosts are connected to the mesh
170via bat0 or being bridged into the mesh network. The PRIMARY/SEC 171via bat0 or being bridged into the mesh network. The PRIMARY/SEC
171values are only applied on primary interfaces 172values are only applied on primary interfaces
172 173
@@ -199,7 +200,7 @@ abled during run time. Following log_levels are defined:
199 200
2000 - All debug output disabled 2010 - All debug output disabled
2011 - Enable messages related to routing / flooding / broadcasting 2021 - Enable messages related to routing / flooding / broadcasting
2022 - Enable route or hna added / changed / deleted 2032 - Enable route or tt entry added / changed / deleted
2033 - Enable all messages 2043 - Enable all messages
204 205
205The debug output can be changed at runtime using the file 206The 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
207 208
208# echo 2 > /sys/class/net/bat0/mesh/log_level 209# echo 2 > /sys/class/net/bat0/mesh/log_level
209 210
210will enable debug messages for when routes or HNAs change. 211will enable debug messages for when routes or TTs change.
211 212
212 213
213BATCTL 214BATCTL
diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index e27202bb8d75..1f45bd887d65 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt
@@ -1,7 +1,7 @@
1 1
2 Linux Ethernet Bonding Driver HOWTO 2 Linux Ethernet Bonding Driver HOWTO
3 3
4 Latest update: 23 September 2009 4 Latest update: 27 April 2011
5 5
6Initial release : Thomas Davis <tadavis at lbl.gov> 6Initial release : Thomas Davis <tadavis at lbl.gov>
7Corrections, HA extensions : 2000/10/03-15 : 7Corrections, HA extensions : 2000/10/03-15 :
@@ -585,25 +585,23 @@ mode
585 chosen. 585 chosen.
586 586
587num_grat_arp 587num_grat_arp
588
589 Specifies the number of gratuitous ARPs to be issued after a
590 failover event. One gratuitous ARP is issued immediately after
591 the failover, subsequent ARPs are sent at a rate of one per link
592 monitor interval (arp_interval or miimon, whichever is active).
593
594 The valid range is 0 - 255; the default value is 1. This option
595 affects only the active-backup mode. This option was added for
596 bonding version 3.3.0.
597
598num_unsol_na 588num_unsol_na
599 589
600 Specifies the number of unsolicited IPv6 Neighbor Advertisements 590 Specify the number of peer notifications (gratuitous ARPs and
601 to be issued after a failover event. One unsolicited NA is issued 591 unsolicited IPv6 Neighbor Advertisements) to be issued after a
602 immediately after the failover. 592 failover event. As soon as the link is up on the new slave
603 593 (possibly immediately) a peer notification is sent on the
604 The valid range is 0 - 255; the default value is 1. This option 594 bonding device and each VLAN sub-device. This is repeated at
605 affects only the active-backup mode. This option was added for 595 each link monitor interval (arp_interval or miimon, whichever
606 bonding version 3.4.0. 596 is active) if the number is greater than 1.
597
598 The valid range is 0 - 255; the default value is 1. These options
599 affect only the active-backup mode. These options were added for
600 bonding versions 3.3.0 and 3.4.0 respectively.
601
602 From Linux 2.6.40 and bonding version 3.7.1, these notifications
603 are generated by the ipv4 and ipv6 code and the numbers of
604 repetitions cannot be set independently.
607 605
608primary 606primary
609 607
diff --git a/Documentation/networking/igb.txt b/Documentation/networking/igb.txt
index 98953c0d5342..9a2a037194a5 100644
--- a/Documentation/networking/igb.txt
+++ b/Documentation/networking/igb.txt
@@ -93,6 +93,19 @@ Additional Configurations
93 REQUIREMENTS: MSI-X support is required for Multiqueue. If MSI-X is not 93 REQUIREMENTS: MSI-X support is required for Multiqueue. If MSI-X is not
94 found, the system will fallback to MSI or to Legacy interrupts. 94 found, the system will fallback to MSI or to Legacy interrupts.
95 95
96 MAC and VLAN anti-spoofing feature
97 ----------------------------------
98 When a malicious driver attempts to send a spoofed packet, it is dropped by
99 the hardware and not transmitted. An interrupt is sent to the PF driver
100 notifying it of the spoof attempt.
101
102 When a spoofed packet is detected the PF driver will send the following
103 message to the system log (displayed by the "dmesg" command):
104
105 Spoof event(s) detected on VF(n)
106
107 Where n=the VF that attempted to do the spoofing.
108
96Support 109Support
97======= 110=======
98 111
diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt
index 1971bcf48a60..88880839ece4 100644
--- a/Documentation/power/devices.txt
+++ b/Documentation/power/devices.txt
@@ -279,11 +279,15 @@ When the system goes into the standby or memory sleep state, the phases are:
279 time.) Unlike the other suspend-related phases, during the prepare 279 time.) Unlike the other suspend-related phases, during the prepare
280 phase the device tree is traversed top-down. 280 phase the device tree is traversed top-down.
281 281
282 The prepare phase uses only a bus callback. After the callback method 282 In addition to that, if device drivers need to allocate additional
283 returns, no new children may be registered below the device. The method 283 memory to be able to hadle device suspend correctly, that should be
284 may also prepare the device or driver in some way for the upcoming 284 done in the prepare phase.
285 system power transition, but it should not put the device into a 285
286 low-power state. 286 After the prepare callback method returns, no new children may be
287 registered below the device. The method may also prepare the device or
288 driver in some way for the upcoming system power transition (for
289 example, by allocating additional memory required for this purpose), but
290 it should not put the device into a low-power state.
287 291
288 2. The suspend methods should quiesce the device to stop it from performing 292 2. The suspend methods should quiesce the device to stop it from performing
289 I/O. They also may save the device registers and put it into the 293 I/O. They also may save the device registers and put it into the
diff --git a/Documentation/power/notifiers.txt b/Documentation/power/notifiers.txt
index cf980709122a..c2a4a346c0d9 100644
--- a/Documentation/power/notifiers.txt
+++ b/Documentation/power/notifiers.txt
@@ -1,46 +1,41 @@
1Suspend notifiers 1Suspend notifiers
2 (C) 2007 Rafael J. Wysocki <rjw@sisk.pl>, GPL 2 (C) 2007-2011 Rafael J. Wysocki <rjw@sisk.pl>, GPL
3 3
4There are some operations that device drivers may want to carry out in their 4There are some operations that subsystems or drivers may want to carry out
5.suspend() routines, but shouldn't, because they can cause the hibernation or 5before hibernation/suspend or after restore/resume, but they require the system
6suspend to fail. For example, a driver may want to allocate a substantial amount 6to be fully functional, so the drivers' and subsystems' .suspend() and .resume()
7of memory (like 50 MB) in .suspend(), but that shouldn't be done after the 7or even .prepare() and .complete() callbacks are not suitable for this purpose.
8swsusp's memory shrinker has run. 8For example, device drivers may want to upload firmware to their devices after
9 9resume/restore, but they cannot do it by calling request_firmware() from their
10Also, there may be some operations, that subsystems want to carry out before a 10.resume() or .complete() routines (user land processes are frozen at these
11hibernation/suspend or after a restore/resume, requiring the system to be fully 11points). The solution may be to load the firmware into memory before processes
12functional, so the drivers' .suspend() and .resume() routines are not suitable 12are frozen and upload it from there in the .resume() routine.
13for this purpose. For example, device drivers may want to upload firmware to 13A suspend/hibernation notifier may be used for this purpose.
14their devices after a restore from a hibernation image, but they cannot do it by 14
15calling request_firmware() from their .resume() routines (user land processes 15The subsystems or drivers having such needs can register suspend notifiers that
16are frozen at this point). The solution may be to load the firmware into 16will be called upon the following events by the PM core:
17memory before processes are frozen and upload it from there in the .resume()
18routine. Of course, a hibernation notifier may be used for this purpose.
19
20The subsystems that have such needs can register suspend notifiers that will be
21called upon the following events by the suspend core:
22 17
23PM_HIBERNATION_PREPARE The system is going to hibernate or suspend, tasks will 18PM_HIBERNATION_PREPARE The system is going to hibernate or suspend, tasks will
24 be frozen immediately. 19 be frozen immediately.
25 20
26PM_POST_HIBERNATION The system memory state has been restored from a 21PM_POST_HIBERNATION The system memory state has been restored from a
27 hibernation image or an error occurred during the 22 hibernation image or an error occurred during
28 hibernation. Device drivers' .resume() callbacks have 23 hibernation. Device drivers' restore callbacks have
29 been executed and tasks have been thawed. 24 been executed and tasks have been thawed.
30 25
31PM_RESTORE_PREPARE The system is going to restore a hibernation image. 26PM_RESTORE_PREPARE The system is going to restore a hibernation image.
32 If all goes well the restored kernel will issue a 27 If all goes well, the restored kernel will issue a
33 PM_POST_HIBERNATION notification. 28 PM_POST_HIBERNATION notification.
34 29
35PM_POST_RESTORE An error occurred during the hibernation restore. 30PM_POST_RESTORE An error occurred during restore from hibernation.
36 Device drivers' .resume() callbacks have been executed 31 Device drivers' restore callbacks have been executed
37 and tasks have been thawed. 32 and tasks have been thawed.
38 33
39PM_SUSPEND_PREPARE The system is preparing for a suspend. 34PM_SUSPEND_PREPARE The system is preparing for suspend.
40 35
41PM_POST_SUSPEND The system has just resumed or an error occurred during 36PM_POST_SUSPEND The system has just resumed or an error occurred during
42 the suspend. Device drivers' .resume() callbacks have 37 suspend. Device drivers' resume callbacks have been
43 been executed and tasks have been thawed. 38 executed and tasks have been thawed.
44 39
45It is generally assumed that whatever the notifiers do for 40It is generally assumed that whatever the notifiers do for
46PM_HIBERNATION_PREPARE, should be undone for PM_POST_HIBERNATION. Analogously, 41PM_HIBERNATION_PREPARE, should be undone for PM_POST_HIBERNATION. Analogously,
diff --git a/Documentation/scsi/LICENSE.qla2xxx b/Documentation/scsi/LICENSE.qla2xxx
index 9e15b4f9cd28..19e7cd4bba66 100644
--- a/Documentation/scsi/LICENSE.qla2xxx
+++ b/Documentation/scsi/LICENSE.qla2xxx
@@ -1,11 +1,11 @@
1Copyright (c) 2003-2005 QLogic Corporation 1Copyright (c) 2003-2011 QLogic Corporation
2QLogic Linux Fibre Channel HBA Driver 2QLogic Linux/ESX Fibre Channel HBA Driver
3 3
4This program includes a device driver for Linux 2.6 that may be 4This program includes a device driver for Linux 2.6/ESX that may be
5distributed with QLogic hardware specific firmware binary file. 5distributed with QLogic hardware specific firmware binary file.
6You may modify and redistribute the device driver code under the 6You may modify and redistribute the device driver code under the
7GNU General Public License as published by the Free Software 7GNU General Public License (a copy of which is attached hereto as
8Foundation (version 2 or a later version). 8Exhibit A) published by the Free Software Foundation (version 2).
9 9
10You may redistribute the hardware specific firmware binary file 10You may redistribute the hardware specific firmware binary file
11under the following terms: 11under the following terms:
@@ -43,3 +43,285 @@ OTHERWISE IN ANY INTELLECTUAL PROPERTY RIGHTS (PATENT, COPYRIGHT,
43TRADE SECRET, MASK WORK, OR OTHER PROPRIETARY RIGHT) EMBODIED IN 43TRADE SECRET, MASK WORK, OR OTHER PROPRIETARY RIGHT) EMBODIED IN
44ANY OTHER QLOGIC HARDWARE OR SOFTWARE EITHER SOLELY OR IN 44ANY OTHER QLOGIC HARDWARE OR SOFTWARE EITHER SOLELY OR IN
45COMBINATION WITH THIS PROGRAM. 45COMBINATION WITH THIS PROGRAM.
46
47
48EXHIBIT A
49
50 GNU GENERAL PUBLIC LICENSE
51 Version 2, June 1991
52
53 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
54 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
55 Everyone is permitted to copy and distribute verbatim copies
56 of this license document, but changing it is not allowed.
57
58 Preamble
59
60 The licenses for most software are designed to take away your
61freedom to share and change it. By contrast, the GNU General Public
62License is intended to guarantee your freedom to share and change free
63software--to make sure the software is free for all its users. This
64General Public License applies to most of the Free Software
65Foundation's software and to any other program whose authors commit to
66using it. (Some other Free Software Foundation software is covered by
67the GNU Lesser General Public License instead.) You can apply it to
68your programs, too.
69
70 When we speak of free software, we are referring to freedom, not
71price. Our General Public Licenses are designed to make sure that you
72have the freedom to distribute copies of free software (and charge for
73this service if you wish), that you receive source code or can get it
74if you want it, that you can change the software or use pieces of it
75in new free programs; and that you know you can do these things.
76
77 To protect your rights, we need to make restrictions that forbid
78anyone to deny you these rights or to ask you to surrender the rights.
79These restrictions translate to certain responsibilities for you if you
80distribute copies of the software, or if you modify it.
81
82 For example, if you distribute copies of such a program, whether
83gratis or for a fee, you must give the recipients all the rights that
84you have. You must make sure that they, too, receive or can get the
85source code. And you must show them these terms so they know their
86rights.
87
88 We protect your rights with two steps: (1) copyright the software, and
89(2) offer you this license which gives you legal permission to copy,
90distribute and/or modify the software.
91
92 Also, for each author's protection and ours, we want to make certain
93that everyone understands that there is no warranty for this free
94software. If the software is modified by someone else and passed on, we
95want its recipients to know that what they have is not the original, so
96that any problems introduced by others will not reflect on the original
97authors' reputations.
98
99 Finally, any free program is threatened constantly by software
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102program proprietary. To prevent this, we have made it clear that any
103patent must be licensed for everyone's free use or not licensed at all.
104
105 The precise terms and conditions for copying, distribution and
106modification follow.
107
108 GNU GENERAL PUBLIC LICENSE
109 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
110
111 0. This License applies to any program or other work which contains
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117either verbatim or with modifications and/or translated into another
118language. (Hereinafter, translation is included without limitation in
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120
121Activities other than copying, distribution and modification are not
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123running the Program is not restricted, and the output from the Program
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129source code as you receive it, in any medium, provided that you
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135
136You may charge a fee for the physical act of transferring a copy, and
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148 whole or in part contains or is derived from the Program or any
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163These requirements apply to the modified work as a whole. If
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194 machine-readable copy of the corresponding source code, to be
195 distributed under the terms of Sections 1 and 2 above on a medium
196 customarily used for software interchange; or,
197
198 c) Accompany it with the information you received as to the offer
199 to distribute corresponding source code. (This alternative is
200 allowed only for noncommercial distribution and only if you
201 received the program in object code or executable form with such
202 an offer, in accord with Subsection b above.)
203
204The source code for a work means the preferred form of the work for
205making modifications to it. For an executable work, complete source
206code means all the source code for all modules it contains, plus any
207associated interface definition files, plus the scripts used to
208control compilation and installation of the executable. However, as a
209special exception, the source code distributed need not include
210anything that is normally distributed (in either source or binary
211form) with the major components (compiler, kernel, and so on) of the
212operating system on which the executable runs, unless that component
213itself accompanies the executable.
214
215If distribution of executable or object code is made by offering
216access to copy from a designated place, then offering equivalent
217access to copy the source code from the same place counts as
218distribution of the source code, even though third parties are not
219compelled to copy the source along with the object code.
220
221 4. You may not copy, modify, sublicense, or distribute the Program
222except as expressly provided under this License. Any attempt
223otherwise to copy, modify, sublicense or distribute the Program is
224void, and will automatically terminate your rights under this License.
225However, parties who have received copies, or rights, from you under
226this License will not have their licenses terminated so long as such
227parties remain in full compliance.
228
229 5. You are not required to accept this License, since you have not
230signed it. However, nothing else grants you permission to modify or
231distribute the Program or its derivative works. These actions are
232prohibited by law if you do not accept this License. Therefore, by
233modifying or distributing the Program (or any work based on the
234Program), you indicate your acceptance of this License to do so, and
235all its terms and conditions for copying, distributing or modifying
236the Program or works based on it.
237
238 6. Each time you redistribute the Program (or any work based on the
239Program), the recipient automatically receives a license from the
240original licensor to copy, distribute or modify the Program subject to
241these terms and conditions. You may not impose any further
242restrictions on the recipients' exercise of the rights granted herein.
243You are not responsible for enforcing compliance by third parties to
244this License.
245
246 7. If, as a consequence of a court judgment or allegation of patent
247infringement or for any other reason (not limited to patent issues),
248conditions are imposed on you (whether by court order, agreement or
249otherwise) that contradict the conditions of this License, they do not
250excuse you from the conditions of this License. If you cannot
251distribute so as to satisfy simultaneously your obligations under this
252License and any other pertinent obligations, then as a consequence you
253may not distribute the Program at all. For example, if a patent
254license would not permit royalty-free redistribution of the Program by
255all those who receive copies directly or indirectly through you, then
256the only way you could satisfy both it and this License would be to
257refrain entirely from distribution of the Program.
258
259If any portion of this section is held invalid or unenforceable under
260any particular circumstance, the balance of the section is intended to
261apply and the section as a whole is intended to apply in other
262circumstances.
263
264It is not the purpose of this section to induce you to infringe any
265patents or other property right claims or to contest validity of any
266such claims; this section has the sole purpose of protecting the
267integrity of the free software distribution system, which is
268implemented by public license practices. Many people have made
269generous contributions to the wide range of software distributed
270through that system in reliance on consistent application of that
271system; it is up to the author/donor to decide if he or she is willing
272to distribute software through any other system and a licensee cannot
273impose that choice.
274
275This section is intended to make thoroughly clear what is believed to
276be a consequence of the rest of this License.
277
278 8. If the distribution and/or use of the Program is restricted in
279certain countries either by patents or by copyrighted interfaces, the
280original copyright holder who places the Program under this License
281may add an explicit geographical distribution limitation excluding
282those countries, so that distribution is permitted only in or among
283countries not thus excluded. In such case, this License incorporates
284the limitation as if written in the body of this License.
285
286 9. The Free Software Foundation may publish revised and/or new versions
287of the General Public License from time to time. Such new versions will
288be similar in spirit to the present version, but may differ in detail to
289address new problems or concerns.
290
291Each version is given a distinguishing version number. If the Program
292specifies a version number of this License which applies to it and "any
293later version", you have the option of following the terms and conditions
294either of that version or of any later version published by the Free
295Software Foundation. If the Program does not specify a version number of
296this License, you may choose any version ever published by the Free Software
297Foundation.
298
299 10. If you wish to incorporate parts of the Program into other free
300programs whose distribution conditions are different, write to the author
301to ask for permission. For software which is copyrighted by the Free
302Software Foundation, write to the Free Software Foundation; we sometimes
303make exceptions for this. Our decision will be guided by the two goals
304of preserving the free status of all derivatives of our free software and
305of promoting the sharing and reuse of software generally.
306
307 NO WARRANTY
308
309 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
310FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
311OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
312PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
313OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
314MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
315TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
316PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
317REPAIR OR CORRECTION.
318
319 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
320WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
321REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
322INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
323OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
324TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
325YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
326PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
327POSSIBILITY OF SUCH DAMAGES.
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 9822afb6313c..89757012c7ff 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -1230,6 +1230,13 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
1230 This module supports multiple cards. 1230 This module supports multiple cards.
1231 The driver requires the firmware loader support on kernel. 1231 The driver requires the firmware loader support on kernel.
1232 1232
1233 Module snd-lola
1234 ---------------
1235
1236 Module for Digigram Lola PCI-e boards
1237
1238 This module supports multiple cards.
1239
1233 Module snd-lx6464es 1240 Module snd-lx6464es
1234 ------------------- 1241 -------------------
1235 1242
diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt
index 0caf77e59be4..d70c93bdcadf 100644
--- a/Documentation/sound/alsa/HD-Audio-Models.txt
+++ b/Documentation/sound/alsa/HD-Audio-Models.txt
@@ -94,7 +94,7 @@ ALC662/663/272
94 3stack-dig 3-stack (2-channel) with SPDIF 94 3stack-dig 3-stack (2-channel) with SPDIF
95 3stack-6ch 3-stack (6-channel) 95 3stack-6ch 3-stack (6-channel)
96 3stack-6ch-dig 3-stack (6-channel) with SPDIF 96 3stack-6ch-dig 3-stack (6-channel) with SPDIF
97 6stack-dig 6-stack with SPDIF 97 5stack-dig 5-stack with SPDIF
98 lenovo-101e Lenovo laptop 98 lenovo-101e Lenovo laptop
99 eeepc-p701 ASUS Eeepc P701 99 eeepc-p701 ASUS Eeepc P701
100 eeepc-ep20 ASUS Eeepc EP20 100 eeepc-ep20 ASUS Eeepc EP20
diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt
index cbd05ffc606b..3201a7097e4d 100644
--- a/Documentation/sysctl/net.txt
+++ b/Documentation/sysctl/net.txt
@@ -32,6 +32,17 @@ Table : Subdirectories in /proc/sys/net
321. /proc/sys/net/core - Network core options 321. /proc/sys/net/core - Network core options
33------------------------------------------------------- 33-------------------------------------------------------
34 34
35bpf_jit_enable
36--------------
37
38This enables Berkeley Packet Filter Just in Time compiler.
39Currently supported on x86_64 architecture, bpf_jit provides a framework
40to speed packet filtering, the one used by tcpdump/libpcap for example.
41Values :
42 0 - disable the JIT (default value)
43 1 - enable the JIT
44 2 - enable the JIT and ask the compiler to emit traces on kernel log.
45
35rmem_default 46rmem_default
36------------ 47------------
37 48
diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt
index 6d27ab8d6e9f..c83bd6b4e6e8 100644
--- a/Documentation/trace/kprobetrace.txt
+++ b/Documentation/trace/kprobetrace.txt
@@ -120,7 +120,6 @@ format:
120 field:unsigned char common_flags; offset:2; size:1; signed:0; 120 field:unsigned char common_flags; offset:2; size:1; signed:0;
121 field:unsigned char common_preempt_count; offset:3; size:1;signed:0; 121 field:unsigned char common_preempt_count; offset:3; size:1;signed:0;
122 field:int common_pid; offset:4; size:4; signed:1; 122 field:int common_pid; offset:4; size:4; signed:1;
123 field:int common_lock_depth; offset:8; size:4; signed:1;
124 123
125 field:unsigned long __probe_ip; offset:12; size:4; signed:0; 124 field:unsigned long __probe_ip; offset:12; size:4; signed:0;
126 field:int __probe_nargs; offset:16; size:4; signed:1; 125 field:int __probe_nargs; offset:16; size:4; signed:1;
diff --git a/Documentation/video4linux/sh_mobile_ceu_camera.txt b/Documentation/video4linux/sh_mobile_ceu_camera.txt
index cb47e723af74..1e96ce6e2d2f 100644
--- a/Documentation/video4linux/sh_mobile_ceu_camera.txt
+++ b/Documentation/video4linux/sh_mobile_ceu_camera.txt
@@ -37,7 +37,7 @@ Generic scaling / cropping scheme
37-1'- 37-1'-
38 38
39In the above chart minuses and slashes represent "real" data amounts, points and 39In the above chart minuses and slashes represent "real" data amounts, points and
40accents represent "useful" data, basically, CEU scaled amd cropped output, 40accents represent "useful" data, basically, CEU scaled and cropped output,
41mapped back onto the client's source plane. 41mapped back onto the client's source plane.
42 42
43Such a configuration can be produced by user requests: 43Such a configuration can be produced by user requests:
@@ -65,7 +65,7 @@ Do not touch input rectangle - it is already optimal.
65 65
661. Calculate current sensor scales: 661. Calculate current sensor scales:
67 67
68 scale_s = ((3') - (3)) / ((2') - (2)) 68 scale_s = ((2') - (2)) / ((3') - (3))
69 69
702. Calculate "effective" input crop (sensor subwindow) - CEU crop scaled back at 702. Calculate "effective" input crop (sensor subwindow) - CEU crop scaled back at
71current sensor scales onto input window - this is user S_CROP: 71current sensor scales onto input window - this is user S_CROP:
@@ -80,7 +80,7 @@ window:
804. Calculate sensor output window by applying combined scales to real input 804. Calculate sensor output window by applying combined scales to real input
81window: 81window:
82 82
83 width_s_out = ((2') - (2)) / scale_comb 83 width_s_out = ((7') - (7)) = ((2') - (2)) / scale_comb
84 84
855. Apply iterative sensor S_FMT for sensor output window. 855. Apply iterative sensor S_FMT for sensor output window.
86 86
diff --git a/Documentation/virtual/00-INDEX b/Documentation/virtual/00-INDEX
new file mode 100644
index 000000000000..fe0251c4cfb7
--- /dev/null
+++ b/Documentation/virtual/00-INDEX
@@ -0,0 +1,10 @@
1Virtualization support in the Linux kernel.
2
300-INDEX
4 - this file.
5kvm/
6 - Kernel Virtual Machine. See also http://linux-kvm.org
7lguest/
8 - Extremely simple hypervisor for experimental/educational use.
9uml/
10 - User Mode Linux, builds/runs Linux kernel as a userspace program.
diff --git a/Documentation/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 9bef4e4cec50..42542eb802ca 100644
--- a/Documentation/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -175,7 +175,10 @@ Parameters: vcpu id (apic id on x86)
175Returns: vcpu fd on success, -1 on error 175Returns: vcpu fd on success, -1 on error
176 176
177This API adds a vcpu to a virtual machine. The vcpu id is a small integer 177This API adds a vcpu to a virtual machine. The vcpu id is a small integer
178in the range [0, max_vcpus). 178in the range [0, max_vcpus). You can use KVM_CAP_NR_VCPUS of the
179KVM_CHECK_EXTENSION ioctl() to determine the value for max_vcpus at run-time.
180If the KVM_CAP_NR_VCPUS does not exist, you should assume that max_vcpus is 4
181cpus max.
179 182
1804.8 KVM_GET_DIRTY_LOG (vm ioctl) 1834.8 KVM_GET_DIRTY_LOG (vm ioctl)
181 184
@@ -261,7 +264,7 @@ See KVM_GET_REGS for the data structure.
2614.13 KVM_GET_SREGS 2644.13 KVM_GET_SREGS
262 265
263Capability: basic 266Capability: basic
264Architectures: x86 267Architectures: x86, ppc
265Type: vcpu ioctl 268Type: vcpu ioctl
266Parameters: struct kvm_sregs (out) 269Parameters: struct kvm_sregs (out)
267Returns: 0 on success, -1 on error 270Returns: 0 on success, -1 on error
@@ -279,6 +282,8 @@ struct kvm_sregs {
279 __u64 interrupt_bitmap[(KVM_NR_INTERRUPTS + 63) / 64]; 282 __u64 interrupt_bitmap[(KVM_NR_INTERRUPTS + 63) / 64];
280}; 283};
281 284
285/* ppc -- see arch/powerpc/include/asm/kvm.h */
286
282interrupt_bitmap is a bitmap of pending external interrupts. At most 287interrupt_bitmap is a bitmap of pending external interrupts. At most
283one bit may be set. This interrupt has been acknowledged by the APIC 288one bit may be set. This interrupt has been acknowledged by the APIC
284but not yet injected into the cpu core. 289but not yet injected into the cpu core.
@@ -286,7 +291,7 @@ but not yet injected into the cpu core.
2864.14 KVM_SET_SREGS 2914.14 KVM_SET_SREGS
287 292
288Capability: basic 293Capability: basic
289Architectures: x86 294Architectures: x86, ppc
290Type: vcpu ioctl 295Type: vcpu ioctl
291Parameters: struct kvm_sregs (in) 296Parameters: struct kvm_sregs (in)
292Returns: 0 on success, -1 on error 297Returns: 0 on success, -1 on error
@@ -1263,6 +1268,29 @@ struct kvm_assigned_msix_entry {
1263 __u16 padding[3]; 1268 __u16 padding[3];
1264}; 1269};
1265 1270
12714.54 KVM_SET_TSC_KHZ
1272
1273Capability: KVM_CAP_TSC_CONTROL
1274Architectures: x86
1275Type: vcpu ioctl
1276Parameters: virtual tsc_khz
1277Returns: 0 on success, -1 on error
1278
1279Specifies the tsc frequency for the virtual machine. The unit of the
1280frequency is KHz.
1281
12824.55 KVM_GET_TSC_KHZ
1283
1284Capability: KVM_CAP_GET_TSC_KHZ
1285Architectures: x86
1286Type: vcpu ioctl
1287Parameters: none
1288Returns: virtual tsc-khz on success, negative value on error
1289
1290Returns the tsc frequency of the guest. The unit of the return value is
1291KHz. If the host has unstable tsc this ioctl returns -EIO instead as an
1292error.
1293
12665. The kvm_run structure 12945. The kvm_run structure
1267 1295
1268Application code obtains a pointer to the kvm_run structure by 1296Application code obtains a pointer to the kvm_run structure by
diff --git a/Documentation/kvm/cpuid.txt b/Documentation/virtual/kvm/cpuid.txt
index 882068538c9c..882068538c9c 100644
--- a/Documentation/kvm/cpuid.txt
+++ b/Documentation/virtual/kvm/cpuid.txt
diff --git a/Documentation/kvm/locking.txt b/Documentation/virtual/kvm/locking.txt
index 3b4cd3bf5631..3b4cd3bf5631 100644
--- a/Documentation/kvm/locking.txt
+++ b/Documentation/virtual/kvm/locking.txt
diff --git a/Documentation/kvm/mmu.txt b/Documentation/virtual/kvm/mmu.txt
index f46aa58389ca..f46aa58389ca 100644
--- a/Documentation/kvm/mmu.txt
+++ b/Documentation/virtual/kvm/mmu.txt
diff --git a/Documentation/kvm/msr.txt b/Documentation/virtual/kvm/msr.txt
index d079aed27e03..d079aed27e03 100644
--- a/Documentation/kvm/msr.txt
+++ b/Documentation/virtual/kvm/msr.txt
diff --git a/Documentation/kvm/ppc-pv.txt b/Documentation/virtual/kvm/ppc-pv.txt
index 3ab969c59046..3ab969c59046 100644
--- a/Documentation/kvm/ppc-pv.txt
+++ b/Documentation/virtual/kvm/ppc-pv.txt
diff --git a/Documentation/kvm/review-checklist.txt b/Documentation/virtual/kvm/review-checklist.txt
index 730475ae1b8d..a850986ed684 100644
--- a/Documentation/kvm/review-checklist.txt
+++ b/Documentation/virtual/kvm/review-checklist.txt
@@ -7,7 +7,7 @@ Review checklist for kvm patches
72. Patches should be against kvm.git master branch. 72. Patches should be against kvm.git master branch.
8 8
93. If the patch introduces or modifies a new userspace API: 93. If the patch introduces or modifies a new userspace API:
10 - the API must be documented in Documentation/kvm/api.txt 10 - the API must be documented in Documentation/virtual/kvm/api.txt
11 - the API must be discoverable using KVM_CHECK_EXTENSION 11 - the API must be discoverable using KVM_CHECK_EXTENSION
12 12
134. New state must include support for save/restore. 134. New state must include support for save/restore.
diff --git a/Documentation/kvm/timekeeping.txt b/Documentation/virtual/kvm/timekeeping.txt
index df8946377cb6..df8946377cb6 100644
--- a/Documentation/kvm/timekeeping.txt
+++ b/Documentation/virtual/kvm/timekeeping.txt
diff --git a/Documentation/lguest/.gitignore b/Documentation/virtual/lguest/.gitignore
index 115587fd5f65..115587fd5f65 100644
--- a/Documentation/lguest/.gitignore
+++ b/Documentation/virtual/lguest/.gitignore
diff --git a/Documentation/lguest/Makefile b/Documentation/virtual/lguest/Makefile
index bebac6b4f332..bebac6b4f332 100644
--- a/Documentation/lguest/Makefile
+++ b/Documentation/virtual/lguest/Makefile
diff --git a/Documentation/lguest/extract b/Documentation/virtual/lguest/extract
index 7730bb6e4b94..7730bb6e4b94 100644
--- a/Documentation/lguest/extract
+++ b/Documentation/virtual/lguest/extract
diff --git a/Documentation/lguest/lguest.c b/Documentation/virtual/lguest/lguest.c
index d9da7e148538..d9da7e148538 100644
--- a/Documentation/lguest/lguest.c
+++ b/Documentation/virtual/lguest/lguest.c
diff --git a/Documentation/lguest/lguest.txt b/Documentation/virtual/lguest/lguest.txt
index dad99978a6a8..bff0c554485d 100644
--- a/Documentation/lguest/lguest.txt
+++ b/Documentation/virtual/lguest/lguest.txt
@@ -74,7 +74,8 @@ Running Lguest:
74 74
75- Run an lguest as root: 75- Run an lguest as root:
76 76
77 Documentation/lguest/lguest 64 vmlinux --tunnet=192.168.19.1 --block=rootfile root=/dev/vda 77 Documentation/virtual/lguest/lguest 64 vmlinux --tunnet=192.168.19.1 \
78 --block=rootfile root=/dev/vda
78 79
79 Explanation: 80 Explanation:
80 64: the amount of memory to use, in MB. 81 64: the amount of memory to use, in MB.
diff --git a/Documentation/uml/UserModeLinux-HOWTO.txt b/Documentation/virtual/uml/UserModeLinux-HOWTO.txt
index 9b7e1904db1c..9b7e1904db1c 100644
--- a/Documentation/uml/UserModeLinux-HOWTO.txt
+++ b/Documentation/virtual/uml/UserModeLinux-HOWTO.txt
diff --git a/Documentation/workqueue.txt b/Documentation/workqueue.txt
index 01c513fac40e..a0b577de918f 100644
--- a/Documentation/workqueue.txt
+++ b/Documentation/workqueue.txt
@@ -12,6 +12,7 @@ CONTENTS
124. Application Programming Interface (API) 124. Application Programming Interface (API)
135. Example Execution Scenarios 135. Example Execution Scenarios
146. Guidelines 146. Guidelines
157. Debugging
15 16
16 17
171. Introduction 181. Introduction
@@ -379,3 +380,42 @@ If q1 has WQ_CPU_INTENSIVE set,
379* Unless work items are expected to consume a huge amount of CPU 380* Unless work items are expected to consume a huge amount of CPU
380 cycles, using a bound wq is usually beneficial due to the increased 381 cycles, using a bound wq is usually beneficial due to the increased
381 level of locality in wq operations and work item execution. 382 level of locality in wq operations and work item execution.
383
384
3857. Debugging
386
387Because the work functions are executed by generic worker threads
388there are a few tricks needed to shed some light on misbehaving
389workqueue users.
390
391Worker threads show up in the process list as:
392
393root 5671 0.0 0.0 0 0 ? S 12:07 0:00 [kworker/0:1]
394root 5672 0.0 0.0 0 0 ? S 12:07 0:00 [kworker/1:2]
395root 5673 0.0 0.0 0 0 ? S 12:12 0:00 [kworker/0:0]
396root 5674 0.0 0.0 0 0 ? S 12:13 0:00 [kworker/1:0]
397
398If kworkers are going crazy (using too much cpu), there are two types
399of possible problems:
400
401 1. Something beeing scheduled in rapid succession
402 2. A single work item that consumes lots of cpu cycles
403
404The first one can be tracked using tracing:
405
406 $ echo workqueue:workqueue_queue_work > /sys/kernel/debug/tracing/set_event
407 $ cat /sys/kernel/debug/tracing/trace_pipe > out.txt
408 (wait a few secs)
409 ^C
410
411If something is busy looping on work queueing, it would be dominating
412the output and the offender can be determined with the work item
413function.
414
415For the second type of problems it should be possible to just check
416the stack trace of the offending worker thread.
417
418 $ cat /proc/THE_OFFENDING_KWORKER/stack
419
420The work item's function should be trivially visible in the stack
421trace.
diff --git a/Documentation/x86/x86_64/boot-options.txt b/Documentation/x86/x86_64/boot-options.txt
index 092e596a1301..c54b4f503e2a 100644
--- a/Documentation/x86/x86_64/boot-options.txt
+++ b/Documentation/x86/x86_64/boot-options.txt
@@ -206,7 +206,7 @@ IOMMU (input/output memory management unit)
206 (e.g. because you have < 3 GB memory). 206 (e.g. because you have < 3 GB memory).
207 Kernel boot message: "PCI-DMA: Disabling IOMMU" 207 Kernel boot message: "PCI-DMA: Disabling IOMMU"
208 208
209 2. <arch/x86_64/kernel/pci-gart.c>: AMD GART based hardware IOMMU. 209 2. <arch/x86/kernel/amd_gart_64.c>: AMD GART based hardware IOMMU.
210 Kernel boot message: "PCI-DMA: using GART IOMMU" 210 Kernel boot message: "PCI-DMA: using GART IOMMU"
211 211
212 3. <arch/x86_64/kernel/pci-swiotlb.c> : Software IOMMU implementation. Used 212 3. <arch/x86_64/kernel/pci-swiotlb.c> : Software IOMMU implementation. Used
diff --git a/Documentation/zh_CN/email-clients.txt b/Documentation/zh_CN/email-clients.txt
new file mode 100644
index 000000000000..5d65e323d060
--- /dev/null
+++ b/Documentation/zh_CN/email-clients.txt
@@ -0,0 +1,210 @@
1锘?Chinese translated version of Documentation/email-clients.txt
2
3If you have any comment or update to the content, please contact the
4original document maintainer directly. However, if you have a problem
5communicating in English you can also ask the Chinese maintainer for
6help. Contact the Chinese maintainer if this translation is outdated
7or if there is a problem with the translation.
8
9Chinese maintainer: Harry Wei <harryxiyou@gmail.com>
10---------------------------------------------------------------------
11Documentation/email-clients.txt ???涓????缈昏??
12
13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??
14浜ゆ???????伴?剧??璇?锛?涔????浠ュ??涓???????缁存?よ??姹???┿??濡???????缈昏????存?颁???????舵?????缈?
15璇?瀛???ㄩ??棰?锛?璇疯??绯讳腑??????缁存?よ?????
16
17涓???????缁存?よ??锛? 璐惧??濞? Harry Wei <harryxiyou@gmail.com>
18涓???????缈昏?????锛? 璐惧??濞? Harry Wei <harryxiyou@gmail.com>
19涓?????????¤?????锛? Yinglin Luan <synmyth@gmail.com>
20 Xiaochen Wang <wangxiaochen0@gmail.com>
21 yaxinsn <yaxinsn@163.com>
22
23浠ヤ??涓烘?f??
24---------------------------------------------------------------------
25
26Linux???浠跺?㈡?风?????缃?淇℃??
27======================================================================
28
29?????????缃?
30----------------------------------------------------------------------
31Linux?????歌ˉ涓???????杩????浠惰?????浜ょ??锛????濂芥??琛ヤ??浣?涓洪??浠朵????????宓?????????????浜?缁存?よ??
32??ユ?堕??浠讹??浣???????浠剁?????瀹规?煎??搴?璇ユ??"text/plain"?????惰??锛????浠朵????????涓?璧???????锛?
33???涓鸿??浼?浣胯ˉ涓????寮???ㄩ?ㄥ????ㄨ??璁鸿??绋?涓???????寰???伴?俱??
34
35??ㄦ?ュ?????Linux?????歌ˉ涓???????浠跺?㈡?风????ㄥ?????琛ヤ????跺??璇ュ??浜?????????????濮???舵?????渚?濡?锛?
36浠?浠?涓???芥?瑰?????????????ゅ?惰〃绗???????绌烘?硷???????虫????ㄦ??涓?琛????寮?澶存?????缁?灏俱??
37
38涓?瑕????杩?"format=flowed"妯″????????琛ヤ?????杩???蜂??寮?璧蜂?????棰????浠ュ?????瀹崇?????琛????
39
40涓?瑕?璁╀????????浠跺?㈡?风??杩?琛??????ㄦ?㈣?????杩???蜂??浼???村??浣????琛ヤ?????
41
42???浠跺?㈡?风??涓???芥?瑰???????????瀛?绗????缂??????瑰?????瑕??????????琛ヤ???????芥??ASCII??????UTF-8缂??????瑰??锛?
43濡????浣?浣跨??UTF-8缂??????瑰???????????浠讹????d??浣?灏?浼???垮??涓?浜??????藉????????瀛?绗???????棰????
44
45???浠跺?㈡?风??搴?璇ュ舰???骞朵??淇???? References: ?????? In-Reply-To: ???棰?锛???d??
46???浠惰??棰?灏变??浼?涓???????
47
48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
49??????xcutsel涔?璁稿??浠ワ??浣???????濂芥??璇?涓?涓?????????垮??浣跨?ㄥ????剁??甯????
50
51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?????
52锛?杩?涓????棰?搴?璇ユ?????浠ヤ慨澶????锛?
53
54??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??
55???浠讹??灏?琛ヤ?????'patch'??戒护???涓?锛?濡??????????浜?锛????缁??????搁??浠跺??琛ㄥ????????
56
57
58涓?浜????浠跺?㈡?风?????绀?
59----------------------------------------------------------------------
60杩????缁???轰??浜?璇?缁????MUA???缃????绀猴?????浠ョ?ㄤ??缁?Linux?????稿?????琛ヤ?????杩?浜?骞朵???????虫??
61?????????杞?浠跺?????缃???荤?????
62
63璇存??锛?
64TUI = 浠ユ?????涓哄?虹???????ㄦ?锋?ュ??
65GUI = ??惧舰?????㈢?ㄦ?锋?ュ??
66
67~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
68Alpine (TUI)
69
70???缃????椤癸??
71???"Sending Preferences"??ㄥ??锛?
72
73- "Do Not Send Flowed Text"蹇?椤诲?????
74- "Strip Whitespace Before Sending"蹇?椤诲?抽??
75
76褰???????浠舵?讹????????搴?璇ユ?惧?ㄨˉ涓?浼???虹?扮????版?癸????跺?????涓?CTRL-R缁???????锛?浣挎??瀹????
77琛ヤ?????浠跺????ュ?伴??浠朵腑???
78
79~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
80Evolution (GUI)
81
82涓?浜?寮????????????????浣跨?ㄥ????????琛ヤ??
83
84褰??????╅??浠堕??椤癸??Preformat
85 浠?Format->Heading->Preformatted (Ctrl-7)??????宸ュ?锋??
86
87??跺??浣跨??锛?
88 Insert->Text File... (Alt-n x)?????ヨˉ涓????浠躲??
89
90浣?杩????浠?"diff -Nru old.c new.c | xclip"锛???????Preformat锛???跺??浣跨?ㄤ腑??撮??杩?琛?绮?甯????
91
92~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
93Kmail (GUI)
94
95涓?浜?寮????????????????浣跨?ㄥ????????琛ヤ?????
96
97榛?璁よ?剧疆涓?涓?HTML??煎??????????????锛?涓?瑕??????ㄥ?????
98
99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????????
100??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??
101??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???
102?????╄????ㄦ?㈣??锛?浣????杩?涓?浼?澶卞?诲凡???????????ㄦ?㈣?????
103
104??ㄩ??浠剁??搴????锛??????ヨˉ涓?涔????锛???句??甯哥?ㄧ??琛ヤ??瀹????绗?锛?涓?涓?杩?瀛????(---)???
105
106??跺?????"Message"????????$??锛??????╂????ユ??浠讹????ョ????????浣????琛ヤ?????浠躲??杩????涓?涓?棰?澶???????椤癸??浣????浠?
107???杩?瀹????缃?浣???????浠跺缓绔?宸ュ?锋????????锛?杩????浠ュ甫涓?"insert file"??炬?????
108
109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?
110褰?浠?GPG涓???????7浣?缂??????朵??浣夸??浠?????????村??澶???????
111
112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
113display"锛?杩???峰??宓????浠舵?村?规??璁╄?昏???????般??
114
115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?????
116"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??
117???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
118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??
119浣?涓?寰?涓????浠?浠????????????逛负缁?????????翠?????璇汇??
120
121~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
122Lotus Notes (GUI)
123
124涓?瑕?浣跨?ㄥ?????
125
126~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
127Mutt (TUI)
128
129寰?澶?Linux寮????浜哄??浣跨??mutt瀹㈡?风??锛????浠ヨ?????瀹????瀹?宸ヤ????????甯告??浜????
130
131Mutt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???
132涓?涓?"insert file"???椤癸??瀹????浠ラ??杩?涓???瑰?????浠跺??瀹圭????瑰???????ユ??浠躲??
133
134'vim'浣?涓?mutt???缂?杈????锛?
135 set editor="vi"
136
137 濡????浣跨??xclip锛???插?ヤ互涓???戒护
138 :set paste
139 ???涓????涔??????????shift-insert??????浣跨??
140 :r filename
141
142濡??????宠?????琛ヤ??浣?涓哄??宓??????????
143(a)ttach宸ヤ?????寰?濂斤??涓?甯????"set paste"???
144
145???缃????椤癸??
146瀹?搴?璇ヤ互榛?璁よ?剧疆???褰㈠??宸ヤ?????
147??惰??锛????"send_charset"璁剧疆涓?"us-ascii::utf-8"涔????涓?涓?涓???????涓绘?????
148
149~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
150Pine (TUI)
151
152Pine杩???绘??涓?浜?绌烘?煎????????棰?锛?浣????杩?浜???板?ㄥ??璇ラ?借??淇?澶?浜????
153
154濡???????浠ワ??璇蜂娇???alpine(pine???缁ф?胯??)
155
156???缃????椤癸??
157- ???杩?????????????瑕?娑???ゆ??绋???????
158- "no-strip-whitespace-before-send"???椤逛????????瑕???????
159
160
161~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
162Sylpheed (GUI)
163
164- ???宓??????????浠ュ??濂界??宸ヤ??锛???????浣跨?ㄩ??浠讹?????
165- ???璁镐娇??ㄥ????ㄧ??缂?杈???ㄣ??
166- 瀵逛?????褰?杈?澶???堕??甯告?????
167- 濡???????杩?non-SSL杩???ワ?????娉?浣跨??TLS SMTP?????????
168- ??ㄧ?????绐???d腑???涓?涓?寰??????ㄧ??ruler bar???
169- 缁???板?????涓?娣诲????板??灏变??浼?姝g‘???浜?瑙f?剧ず??????
170
171~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
172Thunderbird (GUI)
173
174榛?璁ゆ????典??锛?thunderbird寰?瀹规??????????????锛?浣????杩????涓?浜???规?????浠ュ己??跺?????寰???村ソ???
175
176- ??ㄧ?ㄦ?峰????疯?剧疆???锛?缁???????瀵诲??锛?涓?瑕???????"Compose messages in HTML format"???
177
178- 缂?杈?浣????Thunderbird???缃?璁剧疆??ヤ娇瀹?涓?瑕????琛?浣跨??锛?user_pref("mailnews.wraplength", 0);
179
180- 缂?杈?浣????Thunderbird???缃?璁剧疆锛?浣垮??涓?瑕?浣跨??"format=flowed"??煎??锛?user_pref("mailnews.
181 send_plaintext_flowed", false);
182
183- 浣????瑕?浣?Thunderbird???涓洪???????煎????瑰??锛?
184 濡????榛?璁ゆ????典??浣?涔??????????HTML??煎??锛???d?????寰???俱??浠?浠?浠????棰???????涓????妗?涓???????"Preformat"??煎?????
185 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?
186 ??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
187 ??煎??锛???跺?????棰???????涓????妗?涓???????"Preformat"??煎?????
188
189- ???璁镐娇??ㄥ????ㄧ??缂?杈????锛?
190 ???瀵?Thunderbird???琛ヤ?????绠?????????规??灏辨??浣跨?ㄤ??涓?"external editor"??╁??锛???跺??浣跨?ㄤ????????娆㈢??
191 $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?????
192 ??????View->Toolbars->Customize...??????褰?浣?涔????淇℃???????跺??浠?浠???瑰?诲??灏卞??浠ヤ?????
193
194~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
195TkRat (GUI)
196
197???浠ヤ娇??ㄥ?????浣跨??"Insert file..."??????澶???ㄧ??缂?杈???ㄣ??
198
199~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
200Gmail (Web GUI)
201
202涓?瑕?浣跨?ㄥ????????琛ヤ?????
203
204Gmail缃?椤靛?㈡?风???????ㄥ?版????惰〃绗?杞????涓虹┖??笺??
205
206??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????
207
208???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????
209
210 ###