Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <[email protected]>

Author: Ingo Molnar

Documentation/00-INDEX

@@ -7,8 +7,8 @@ Please try and keep the descriptions small enough to fit on one line.
 
 Following translations are available on the WWW:
 
-   - Japanese, maintained by the JF Project (JF@linux.or.jp), at
-     http://www.linux.or.jp/JF/
+   - Japanese, maintained by the JF Project (jf@listserv.linux.or.jp), at
+     http://linuxjf.sourceforge.jp/
 
 00-INDEX
 	- this file.
@@ -104,6 +104,8 @@ cpuidle/
 	- info on CPU_IDLE, CPU idle state management subsystem.
 cputopology.txt
 	- documentation on how CPU topology info is exported via sysfs.
+crc32.txt
+	- brief tutorial on CRC computation
 cris/
 	- directory with info about Linux on CRIS architecture.
 crypto/

Documentation/ABI/obsolete/sysfs-class-rfkill

@@ -7,7 +7,7 @@ Date:		09-Jul-2007
 KernelVersion	v2.6.22
 Contact:	[email protected]
 Description: 	Current state of the transmitter.
-		This file is deprecated and sheduled to be removed in 2014,
+		This file is deprecated and scheduled to be removed in 2014,
 		because its not possible to express the 'soft and hard block'
 		state of the rfkill driver.
 Values: 	A numeric value.

Documentation/ABI/removed/devfs

@@ -1,6 +1,6 @@
 What:		devfs
 Date:		July 2005 (scheduled), finally removed in kernel v2.6.18
-Contact:	Greg Kroah-Hartman <gregkh@suse.de>
+Contact:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 Description:
 	devfs has been unmaintained for a number of years, has unfixable
 	races, contains a naming policy within the kernel that is

Documentation/ABI/stable/sysfs-driver-usb-usbtmc

@@ -1,7 +1,7 @@
 What:		/sys/bus/usb/drivers/usbtmc/devices/*/interface_capabilities
 What:		/sys/bus/usb/drivers/usbtmc/devices/*/device_capabilities
 Date:		August 2008
-Contact:	Greg Kroah-Hartman <gregkh@suse.de>
+Contact:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 Description:
 		These files show the various USB TMC capabilities as described
 		by the device itself.  The full description of the bitfields
@@ -15,7 +15,7 @@ Description:
 What:		/sys/bus/usb/drivers/usbtmc/devices/*/usb488_interface_capabilities
 What:		/sys/bus/usb/drivers/usbtmc/devices/*/usb488_device_capabilities
 Date:		August 2008
-Contact:	Greg Kroah-Hartman <gregkh@suse.de>
+Contact:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 Description:
 		These files show the various USB TMC capabilities as described
 		by the device itself.  The full description of the bitfields
@@ -29,7 +29,7 @@ Description:
 
 What:		/sys/bus/usb/drivers/usbtmc/devices/*/TermChar
 Date:		August 2008
-Contact:	Greg Kroah-Hartman <gregkh@suse.de>
+Contact:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 Description:
 		This file is the TermChar value to be sent to the USB TMC
 		device as described by the document, "Universal Serial Bus Test
@@ -42,7 +42,7 @@ Description:
 
 What:		/sys/bus/usb/drivers/usbtmc/devices/*/TermCharEnabled
 Date:		August 2008
-Contact:	Greg Kroah-Hartman <gregkh@suse.de>
+Contact:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 Description:
 		This file determines if the TermChar is to be sent to the
 		device on every transaction or not.  For more details about
@@ -53,9 +53,9 @@ Description:
 
 What:		/sys/bus/usb/drivers/usbtmc/devices/*/auto_abort
 Date:		August 2008
-Contact:	Greg Kroah-Hartman <gregkh@suse.de>
+Contact:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 Description:
-		This file determines if the the transaction of the USB TMC
+		This file determines if the transaction of the USB TMC
 		device is to be automatically aborted if there is any error.
 		For more details about this, please see the document,
 		"Universal Serial Bus Test and Measurement Class Specification

Documentation/ABI/stable/sysfs-module

@@ -6,7 +6,7 @@ Description:
 		The name of the module that is in the kernel.  This
 		module name will show up either if the module is built
 		directly into the kernel, or if it is loaded as a
-		dyanmic module.
+		dynamic module.
 
 	/sys/module/MODULENAME/parameters
 		This directory contains individual files that are each

Documentation/ABI/testing/debugfs-olpc

@@ -0,0 +1,16 @@
+What:		/sys/kernel/debug/olpc-ec/cmd
+Date:		Dec 2011
+KernelVersion:	3.4
+Contact:	[email protected]
+Description:
+
+A generic interface for executing OLPC Embedded Controller commands and
+reading their responses.
+
+To execute a command, write data with the format: CC:N A A A A
+CC is the (hex) command, N is the count of expected reply bytes, and A A A A
+are optional (hex) arguments.
+
+To read the response (if any), read from the generic node after executing
+a command. Hex reply bytes will be returned, *whether or not* they came from
+the immediately previous command.

Documentation/ABI/testing/sysfs-block-dm

@@ -0,0 +1,25 @@
+What:		/sys/block/dm-<num>/dm/name
+Date:		January 2009
+KernelVersion:	2.6.29
+Contact:	[email protected]
+Description:	Device-mapper device name.
+		Read-only string containing mapped device name.
+Users:		util-linux, device-mapper udev rules
+
+What:		/sys/block/dm-<num>/dm/uuid
+Date:		January 2009
+KernelVersion:	2.6.29
+Contact:	[email protected]
+Description:	Device-mapper device UUID.
+		Read-only string containing DM-UUID or empty string
+		if DM-UUID is not set.
+Users:		util-linux, device-mapper udev rules
+
+What:		/sys/block/dm-<num>/dm/suspended
+Date:		June 2009
+KernelVersion:	2.6.31
+Contact:	[email protected]
+Description:	Device-mapper device suspend state.
+		Contains the value 1 while the device is suspended.
+		Otherwise it contains 0. Read-only attribute.
+Users:		util-linux, device-mapper udev rules

Documentation/ABI/testing/sysfs-bus-event_source-devices-format

@@ -0,0 +1,14 @@
+Where:		/sys/bus/event_source/devices/<dev>/format
+Date:		January 2012
+Kernel Version: 3.3
+Contact:	Jiri Olsa <[email protected]>
+Description:
+		Attribute group to describe the magic bits that go into
+		perf_event_attr::config[012] for a particular pmu.
+		Each attribute of this group defines the 'hardware' bitmask
+		we want to export, so that userspace can deal with sane
+		name/value pairs.
+
+		Example: 'config1:1,6-10,44'
+		Defines contents of attribute that occupies bits 1,6-10,44 of
+		perf_event_attr::config1.

Documentation/ABI/testing/sysfs-bus-rpmsg

@@ -0,0 +1,75 @@
+What:		/sys/bus/rpmsg/devices/.../name
+Date:		June 2011
+KernelVersion:	3.3
+Contact:	Ohad Ben-Cohen <[email protected]>
+Description:
+		Every rpmsg device is a communication channel with a remote
+		processor. Channels are identified with a (textual) name,
+		which is maximum 32 bytes long (defined as RPMSG_NAME_SIZE in
+		rpmsg.h).
+
+		This sysfs entry contains the name of this channel.
+
+What:		/sys/bus/rpmsg/devices/.../src
+Date:		June 2011
+KernelVersion:	3.3
+Contact:	Ohad Ben-Cohen <[email protected]>
+Description:
+		Every rpmsg device is a communication channel with a remote
+		processor. Channels have a local ("source") rpmsg address,
+		and remote ("destination") rpmsg address. When an entity
+		starts listening on one end of a channel, it assigns it with
+		a unique rpmsg address (a 32 bits integer). This way when
+		inbound messages arrive to this address, the rpmsg core
+		dispatches them to the listening entity (a kernel driver).
+
+		This sysfs entry contains the src (local) rpmsg address
+		of this channel. If it contains 0xffffffff, then an address
+		wasn't assigned (can happen if no driver exists for this
+		channel).
+
+What:		/sys/bus/rpmsg/devices/.../dst
+Date:		June 2011
+KernelVersion:	3.3
+Contact:	Ohad Ben-Cohen <[email protected]>
+Description:
+		Every rpmsg device is a communication channel with a remote
+		processor. Channels have a local ("source") rpmsg address,
+		and remote ("destination") rpmsg address. When an entity
+		starts listening on one end of a channel, it assigns it with
+		a unique rpmsg address (a 32 bits integer). This way when
+		inbound messages arrive to this address, the rpmsg core
+		dispatches them to the listening entity.
+
+		This sysfs entry contains the dst (remote) rpmsg address
+		of this channel. If it contains 0xffffffff, then an address
+		wasn't assigned (can happen if the kernel driver that
+		is attached to this channel is exposing a service to the
+		remote processor. This make it a local rpmsg server,
+		and it is listening for inbound messages that may be sent
+		from any remote rpmsg client; it is not bound to a single
+		remote entity).
+
+What:		/sys/bus/rpmsg/devices/.../announce
+Date:		June 2011
+KernelVersion:	3.3
+Contact:	Ohad Ben-Cohen <[email protected]>
+Description:
+		Every rpmsg device is a communication channel with a remote
+		processor. Channels are identified by a textual name (see
+		/sys/bus/rpmsg/devices/.../name above) and have a local
+		("source") rpmsg address, and remote ("destination") rpmsg
+		address.
+
+		A channel is first created when an entity, whether local
+		or remote, starts listening on it for messages (and is thus
+		called an rpmsg server).
+
+		When that happens, a "name service" announcement is sent
+		to the other processor, in order to let it know about the
+		creation of the channel (this way remote clients know they
+		can start sending messages).
+
+		This sysfs entry tells us whether the channel is a local
+		server channel that is announced (values are either
+		true or false).

Documentation/ABI/testing/sysfs-bus-usb

@@ -182,3 +182,14 @@ Description:
 		USB2 hardware LPM is enabled for the device. Developer can
 		write y/Y/1 or n/N/0 to the file to enable/disable the
 		feature.
+
+What:		/sys/bus/usb/devices/.../removable
+Date:		February 2012
+Contact:	Matthew Garrett <[email protected]>
+Description:
+		Some information about whether a given USB device is
+		physically fixed to the platform can be inferred from a
+		combination of hub decriptor bits and platform-specific data
+		such as ACPI. This file will read either "removable" or
+		"fixed" if the information is available, and "unknown"
+		otherwise.

Documentation/ABI/testing/sysfs-class

@@ -1,6 +1,6 @@
 What:		/sys/class/
 Date:		Febuary 2006
-Contact:	Greg Kroah-Hartman <gregkh@suse.de>
+Contact:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 Description:
 		The /sys/class directory will consist of a group of
 		subdirectories describing individual classes of devices

Documentation/ABI/testing/sysfs-class-net-mesh

@@ -65,6 +65,13 @@ Description:
 		Defines the penalty which will be applied to an
 		originator message's tq-field on every hop.
 
+What:		/sys/class/net/<mesh_iface>/mesh/routing_algo
+Date:		Dec 2011
+Contact:	Marek Lindner <[email protected]>
+Description:
+		Defines the routing procotol this mesh instance
+		uses to find the optimal paths through the mesh.
+
 What:           /sys/class/net/<mesh_iface>/mesh/vis_mode
 Date:           May 2010
 Contact:        Marek Lindner <[email protected]>

Documentation/ABI/testing/sysfs-devices

@@ -1,6 +1,6 @@
 What:		/sys/devices
 Date:		February 2006
-Contact:	Greg Kroah-Hartman <gregkh@suse.de>
+Contact:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 Description:
 		The /sys/devices tree contains a snapshot of the
 		internal state of the kernel device tree.  Devices will

Documentation/ABI/testing/sysfs-devices-power

@@ -165,3 +165,21 @@ Description:
 
 		Not all drivers support this attribute.  If it isn't supported,
 		attempts to read or write it will yield I/O errors.
+
+What:		/sys/devices/.../power/pm_qos_latency_us
+Date:		March 2012
+Contact:	Rafael J. Wysocki <[email protected]>
+Description:
+		The /sys/devices/.../power/pm_qos_resume_latency_us attribute
+		contains the PM QoS resume latency limit for the given device,
+		which is the maximum allowed time it can take to resume the
+		device, after it has been suspended at run time, from a resume
+		request to the moment the device will be ready to process I/O,
+		in microseconds.  If it is equal to 0, however, this means that
+		the PM QoS resume latency may be arbitrary.
+
+		Not all drivers support this attribute.  If it isn't supported,
+		it is not present.
+
+		This attribute has no effect on system-wide suspend/resume and
+		hibernation.

Documentation/ABI/testing/sysfs-devices-soc

@@ -0,0 +1,58 @@
+What:		/sys/devices/socX
+Date:		January 2012
+contact:	Lee Jones <[email protected]>
+Description:
+		The /sys/devices/ directory contains a sub-directory for each
+		System-on-Chip (SoC) device on a running platform. Information
+		regarding each SoC can be obtained by reading sysfs files. This
+		functionality is only available if implemented by the platform.
+
+		The directory created for each SoC will also house information
+		about devices which are commonly contained in /sys/devices/platform.
+		It has been agreed that if an SoC device exists, its supported
+		devices would be better suited to appear as children of that SoC.
+
+What:		/sys/devices/socX/machine
+Date:		January 2012
+contact:	Lee Jones <[email protected]>
+Description:
+		Read-only attribute common to all SoCs. Contains the SoC machine
+		name (e.g. Ux500).
+
+What:		/sys/devices/socX/family
+Date:		January 2012
+contact:	Lee Jones <[email protected]>
+Description:
+		Read-only attribute common to all SoCs. Contains SoC family name
+		(e.g. DB8500).
+
+What:		/sys/devices/socX/soc_id
+Date:		January 2012
+contact:	Lee Jones <[email protected]>
+Description:
+		Read-only attribute supported by most SoCs. In the case of
+		ST-Ericsson's chips this contains the SoC serial number.
+
+What:		/sys/devices/socX/revision
+Date:		January 2012
+contact:	Lee Jones <[email protected]>
+Description:
+		Read-only attribute supported by most SoCs. Contains the SoC's
+		manufacturing revision number.
+
+What:		/sys/devices/socX/process
+Date:		January 2012
+contact:	Lee Jones <[email protected]>
+Description:
+		Read-only attribute supported ST-Ericsson's silicon. Contains the
+		the process by which the silicon chip was manufactured.
+
+What:		/sys/bus/soc
+Date:		January 2012
+contact:	Lee Jones <[email protected]>
+Description:
+		The /sys/bus/soc/ directory contains the usual sub-folders
+		expected under most buses. /sys/bus/soc/devices is of particular
+		interest, as it contains a symlink for each SoC device found on
+		the system. Each symlink points back into the aforementioned
+		/sys/devices/socX devices.

Documentation/ABI/testing/sysfs-driver-samsung-laptop

@@ -1,7 +1,7 @@
 What:		/sys/devices/platform/samsung/performance_level
 Date:		January 1, 2010
 KernelVersion:	2.6.33
-Contact:	Greg Kroah-Hartman <gregkh@suse.de>
+Contact:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 Description:	Some Samsung laptops have different "performance levels"
 		that are can be modified by a function key, and by this
 		sysfs file.  These values don't always make a whole lot
@@ -17,3 +17,21 @@ Description:	Some Samsung laptops have different "performance levels"
 		Specifically, not all support the "overclock" option,
 		and it's still unknown if this value even changes
 		anything, other than making the user feel a bit better.
+
+What:		/sys/devices/platform/samsung/battery_life_extender
+Date:		December 1, 2011
+KernelVersion:	3.3
+Contact:	Corentin Chary <[email protected]>
+Description:	Max battery charge level can be modified, battery cycle
+		life can be extended by reducing the max battery charge
+		level.
+		0 means normal battery mode (100% charge)
+		1 means battery life extender mode (80% charge)
+
+What:		/sys/devices/platform/samsung/usb_charge
+Date:		December 1, 2011
+KernelVersion:	3.3
+Contact:	Corentin Chary <[email protected]>
+Description:	Use your USB ports to charge devices, even
+		when your laptop is powered off.
+		1 means enabled, 0 means disabled.