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

Conflicts:
	arch/arm/mach-shmobile/clock-sh73a0.c

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

CREDITS

@@ -688,10 +688,13 @@ S: Oxfordshire, UK.
 
 N: Kees Cook
 E: kees@outflux.net
-W: http://outflux.net/
-P: 1024D/17063E6D 9FA3 C49C 23C9 D1BC 2E30  1975 1FFF 4BA9 1706 3E6D
-D: Minor updates to SCSI types, added /proc/pid/maps protection
+E: kees@ubuntu.com
+E: keescook@chromium.org
+W: http://outflux.net/blog/
+P: 4096R/DC6DC026 A5C3 F68F 229D D60F 723E  6E13 8972 F4DF DC6D C026
+D: Various security things, bug fixes, and documentation.
 S: (ask for current address)
+S: Portland, Oregon
 S: USA
 
 N: Robin Cornelius

Documentation/ABI/testing/sysfs-bus-rbd

@@ -57,13 +57,6 @@ create_snap
 
 	 $ echo <snap-name> > /sys/bus/rbd/devices/<dev-id>/snap_create
 
-rollback_snap
-
-	Rolls back data to the specified snapshot. This goes over the entire
-	list of rados blocks and sends a rollback command to each.
-
-	 $ echo <snap-name> > /sys/bus/rbd/devices/<dev-id>/snap_rollback
-
 snap_*
 
 	A directory per each snapshot

Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff

@@ -1,7 +1,7 @@
 What:		/sys/module/hid_logitech/drivers/hid:logitech/<dev>/range.
 Date:		July 2011
 KernelVersion:	3.2
-Contact:	Michal Malý <madcatxster@gmail.com>
+Contact:	Michal Malý <madcatxster@gmail.com>
 Description:	Display minimum, maximum and current range of the steering
 		wheel. Writing a value within min and max boundaries sets the
 		range of the wheel.

Documentation/DocBook/debugobjects.tmpl

@@ -96,6 +96,7 @@
 	<listitem><para>debug_object_deactivate</para></listitem>
 	<listitem><para>debug_object_destroy</para></listitem>
 	<listitem><para>debug_object_free</para></listitem>
+	<listitem><para>debug_object_assert_init</para></listitem>
       </itemizedlist>
       Each of these functions takes the address of the real object and
       a pointer to the object type specific debug description
@@ -273,6 +274,26 @@
 	debug checks.
       </para>
     </sect1>
+
+    <sect1 id="debug_object_assert_init">
+      <title>debug_object_assert_init</title>
+      <para>
+	This function is called to assert that an object has been
+	initialized.
+      </para>
+      <para>
+	When the real object is not tracked by debugobjects, it calls
+	fixup_assert_init of the object type description structure
+	provided by the caller, with the hardcoded object state
+	ODEBUG_NOT_AVAILABLE. The fixup function can correct the problem
+	by calling debug_object_init and other specific initializing
+	functions.
+      </para>
+      <para>
+	When the real object is already tracked by debugobjects it is
+	ignored.
+      </para>
+    </sect1>
   </chapter>
   <chapter id="fixupfunctions">
     <title>Fixup functions</title>
@@ -381,6 +402,35 @@
 	statistics.
       </para>
     </sect1>
+    <sect1 id="fixup_assert_init">
+      <title>fixup_assert_init</title>
+      <para>
+	This function is called from the debug code whenever a problem
+	in debug_object_assert_init is detected.
+      </para>
+      <para>
+	Called from debug_object_assert_init() with a hardcoded state
+	ODEBUG_STATE_NOTAVAILABLE when the object is not found in the
+	debug bucket.
+      </para>
+      <para>
+	The function returns 1 when the fixup was successful,
+	otherwise 0. The return value is used to update the
+	statistics.
+      </para>
+      <para>
+	Note, this function should make sure debug_object_init() is
+	called before returning.
+      </para>
+      <para>
+	The handling of statically initialized objects is a special
+	case. The fixup function should check if this is a legitimate
+	case of a statically initialized object or not. In this case only
+	debug_object_init() should be called to make the object known to
+	the tracker. Then the function should return 0 because this is not
+	a real fixup.
+      </para>
+    </sect1>
   </chapter>
   <chapter id="bugs">
     <title>Known Bugs And Assumptions</title>

Documentation/HOWTO

@@ -275,8 +275,8 @@ versions.
 If no 2.6.x.y kernel is available, then the highest numbered 2.6.x
 kernel is the current stable kernel.
 
-2.6.x.y are maintained by the "stable" team <stable@kernel.org>, and are
-released as needs dictate.  The normal release period is approximately 
+2.6.x.y are maintained by the "stable" team <stable@vger.kernel.org>, and
+are released as needs dictate.  The normal release period is approximately
 two weeks, but it can be longer if there are no pressing problems.  A
 security-related problem, instead, can cause a release to happen almost
 instantly.

Documentation/RCU/checklist.txt

@@ -328,6 +328,12 @@ over a rather long period of time, but improvements are always welcome!
 	RCU rather than SRCU, because RCU is almost always faster and
 	easier to use than is SRCU.
 
+	If you need to enter your read-side critical section in a
+	hardirq or exception handler, and then exit that same read-side
+	critical section in the task that was interrupted, then you need
+	to srcu_read_lock_raw() and srcu_read_unlock_raw(), which avoid
+	the lockdep checking that would otherwise this practice illegal.
+
 	Also unlike other forms of RCU, explicit initialization
 	and cleanup is required via init_srcu_struct() and
 	cleanup_srcu_struct().	These are passed a "struct srcu_struct"

Documentation/RCU/rcu.txt

@@ -38,11 +38,11 @@ o	How can the updater tell when a grace period has completed
 
 	Preemptible variants of RCU (CONFIG_TREE_PREEMPT_RCU) get the
 	same effect, but require that the readers manipulate CPU-local
-	counters.  These counters allow limited types of blocking
-	within RCU read-side critical sections.  SRCU also uses
-	CPU-local counters, and permits general blocking within
-	RCU read-side critical sections.  These two variants of
-	RCU detect grace periods by sampling these counters.
+	counters.  These counters allow limited types of blocking within
+	RCU read-side critical sections.  SRCU also uses CPU-local
+	counters, and permits general blocking within RCU read-side
+	critical sections.  These variants of RCU detect grace periods
+	by sampling these counters.
 
 o	If I am running on a uniprocessor kernel, which can only do one
 	thing at a time, why should I wait for a grace period?

Documentation/RCU/stallwarn.txt

@@ -101,6 +101,11 @@ o	A CPU-bound real-time task in a CONFIG_PREEMPT_RT kernel that
 	CONFIG_TREE_PREEMPT_RCU case, you might see stall-warning
 	messages.
 
+o	A hardware or software issue shuts off the scheduler-clock
+	interrupt on a CPU that is not in dyntick-idle mode.  This
+	problem really has happened, and seems to be most likely to
+	result in RCU CPU stall warnings for CONFIG_NO_HZ=n kernels.
+
 o	A bug in the RCU implementation.
 
 o	A hardware failure.  This is quite unlikely, but has occurred
@@ -109,12 +114,11 @@ o	A hardware failure.  This is quite unlikely, but has occurred
 	This resulted in a series of RCU CPU stall warnings, eventually
 	leading the realization that the CPU had failed.
 
-The RCU, RCU-sched, and RCU-bh implementations have CPU stall
-warning.  SRCU does not have its own CPU stall warnings, but its
-calls to synchronize_sched() will result in RCU-sched detecting
-RCU-sched-related CPU stalls.  Please note that RCU only detects
-CPU stalls when there is a grace period in progress.  No grace period,
-no CPU stall warnings.
+The RCU, RCU-sched, and RCU-bh implementations have CPU stall warning.
+SRCU does not have its own CPU stall warnings, but its calls to
+synchronize_sched() will result in RCU-sched detecting RCU-sched-related
+CPU stalls.  Please note that RCU only detects CPU stalls when there is
+a grace period in progress.  No grace period, no CPU stall warnings.
 
 To diagnose the cause of the stall, inspect the stack traces.
 The offending function will usually be near the top of the stack.

Documentation/RCU/torture.txt

@@ -61,11 +61,24 @@ nreaders	This is the number of RCU reading threads supported.
 		To properly exercise RCU implementations with preemptible
 		read-side critical sections.
 
+onoff_interval
+		The number of seconds between each attempt to execute a
+		randomly selected CPU-hotplug operation.  Defaults to
+		zero, which disables CPU hotplugging.  In HOTPLUG_CPU=n
+		kernels, rcutorture will silently refuse to do any
+		CPU-hotplug operations regardless of what value is
+		specified for onoff_interval.
+
 shuffle_interval
 		The number of seconds to keep the test threads affinitied
 		to a particular subset of the CPUs, defaults to 3 seconds.
 		Used in conjunction with test_no_idle_hz.
 
+shutdown_secs	The number of seconds to run the test before terminating
+		the test and powering off the system.  The default is
+		zero, which disables test termination and system shutdown.
+		This capability is useful for automated testing.
+
 stat_interval	The number of seconds between output of torture
 		statistics (via printk()).  Regardless of the interval,
 		statistics are printed when the module is unloaded.

Documentation/RCU/trace.txt

@@ -105,14 +105,10 @@ o	"dt" is the current value of the dyntick counter that is incremented
 	or one greater than the interrupt-nesting depth otherwise.
 	The number after the second "/" is the NMI nesting depth.
 
-	This field is displayed only for CONFIG_NO_HZ kernels.
-
 o	"df" is the number of times that some other CPU has forced a
 	quiescent state on behalf of this CPU due to this CPU being in
 	dynticks-idle state.
 
-	This field is displayed only for CONFIG_NO_HZ kernels.
-
 o	"of" is the number of times that some other CPU has forced a
 	quiescent state on behalf of this CPU due to this CPU being
 	offline.  In a perfect world, this might never happen, but it

Documentation/RCU/whatisRCU.txt

@@ -4,6 +4,7 @@ to start learning about RCU:
 1.	What is RCU, Fundamentally?  http://lwn.net/Articles/262464/
 2.	What is RCU? Part 2: Usage   http://lwn.net/Articles/263130/
 3.	RCU part 3: the RCU API      http://lwn.net/Articles/264090/
+4.	The RCU API, 2010 Edition    http://lwn.net/Articles/418853/
 
 
 What is RCU?
@@ -834,6 +835,8 @@ SRCU:	Critical sections	Grace period		Barrier
 
 	srcu_read_lock		synchronize_srcu	N/A
 	srcu_read_unlock	synchronize_srcu_expedited
+	srcu_read_lock_raw
+	srcu_read_unlock_raw
 	srcu_dereference
 
 SRCU:	Initialization/cleanup
@@ -855,27 +858,33 @@ list can be helpful:
 
 a.	Will readers need to block?  If so, you need SRCU.
 
-b.	What about the -rt patchset?  If readers would need to block
+b.	Is it necessary to start a read-side critical section in a
+	hardirq handler or exception handler, and then to complete
+	this read-side critical section in the task that was
+	interrupted?  If so, you need SRCU's srcu_read_lock_raw() and
+	srcu_read_unlock_raw() primitives.
+
+c.	What about the -rt patchset?  If readers would need to block
 	in an non-rt kernel, you need SRCU.  If readers would block
 	in a -rt kernel, but not in a non-rt kernel, SRCU is not
 	necessary.
 
-c.	Do you need to treat NMI handlers, hardirq handlers,
+d.	Do you need to treat NMI handlers, hardirq handlers,
 	and code segments with preemption disabled (whether
 	via preempt_disable(), local_irq_save(), local_bh_disable(),
 	or some other mechanism) as if they were explicit RCU readers?
 	If so, you need RCU-sched.
 
-d.	Do you need RCU grace periods to complete even in the face
+e.	Do you need RCU grace periods to complete even in the face
 	of softirq monopolization of one or more of the CPUs?  For
 	example, is your code subject to network-based denial-of-service
 	attacks?  If so, you need RCU-bh.
 
-e.	Is your workload too update-intensive for normal use of
+f.	Is your workload too update-intensive for normal use of
 	RCU, but inappropriate for other synchronization mechanisms?
 	If so, consider SLAB_DESTROY_BY_RCU.  But please be careful!
 
-f.	Otherwise, use RCU.
+g.	Otherwise, use RCU.
 
 Of course, this all assumes that you have determined that RCU is in fact
 the right tool for your job.

Documentation/arm/memory.txt

@@ -51,15 +51,14 @@ ffc00000	ffefffff	DMA memory mapping region.  Memory returned
 ff000000	ffbfffff	Reserved for future expansion of DMA
 				mapping region.
 
-VMALLOC_END	feffffff	Free for platform use, recommended.
-				VMALLOC_END must be aligned to a 2MB
-				boundary.
-
 VMALLOC_START	VMALLOC_END-1	vmalloc() / ioremap() space.
 				Memory returned by vmalloc/ioremap will
 				be dynamically placed in this region.
-				VMALLOC_START may be based upon the value
-				of the high_memory variable.
+				Machine specific static mappings are also
+				located here through iotable_init().
+				VMALLOC_START is based upon the value
+				of the high_memory variable, and VMALLOC_END
+				is equal to 0xff000000.
 
 PAGE_OFFSET	high_memory-1	Kernel direct-mapped RAM region.
 				This maps the platforms RAM, and typically

Documentation/atomic_ops.txt

@@ -84,6 +84,93 @@ compiler optimizes the section accessing atomic_t variables.
 
 *** YOU HAVE BEEN WARNED! ***
 
+Properly aligned pointers, longs, ints, and chars (and unsigned
+equivalents) may be atomically loaded from and stored to in the same
+sense as described for atomic_read() and atomic_set().  The ACCESS_ONCE()
+macro should be used to prevent the compiler from using optimizations
+that might otherwise optimize accesses out of existence on the one hand,
+or that might create unsolicited accesses on the other.
+
+For example consider the following code:
+
+	while (a > 0)
+		do_something();
+
+If the compiler can prove that do_something() does not store to the
+variable a, then the compiler is within its rights transforming this to
+the following:
+
+	tmp = a;
+	if (a > 0)
+		for (;;)
+			do_something();
+
+If you don't want the compiler to do this (and you probably don't), then
+you should use something like the following:
+
+	while (ACCESS_ONCE(a) < 0)
+		do_something();
+
+Alternatively, you could place a barrier() call in the loop.
+
+For another example, consider the following code:
+
+	tmp_a = a;
+	do_something_with(tmp_a);
+	do_something_else_with(tmp_a);
+
+If the compiler can prove that do_something_with() does not store to the
+variable a, then the compiler is within its rights to manufacture an
+additional load as follows:
+
+	tmp_a = a;
+	do_something_with(tmp_a);
+	tmp_a = a;
+	do_something_else_with(tmp_a);
+
+This could fatally confuse your code if it expected the same value
+to be passed to do_something_with() and do_something_else_with().
+
+The compiler would be likely to manufacture this additional load if
+do_something_with() was an inline function that made very heavy use
+of registers: reloading from variable a could save a flush to the
+stack and later reload.  To prevent the compiler from attacking your
+code in this manner, write the following:
+
+	tmp_a = ACCESS_ONCE(a);
+	do_something_with(tmp_a);
+	do_something_else_with(tmp_a);
+
+For a final example, consider the following code, assuming that the
+variable a is set at boot time before the second CPU is brought online
+and never changed later, so that memory barriers are not needed:
+
+	if (a)
+		b = 9;
+	else
+		b = 42;
+
+The compiler is within its rights to manufacture an additional store
+by transforming the above code into the following:
+
+	b = 42;
+	if (a)
+		b = 9;
+
+This could come as a fatal surprise to other code running concurrently
+that expected b to never have the value 42 if a was zero.  To prevent
+the compiler from doing this, write something like:
+
+	if (a)
+		ACCESS_ONCE(b) = 9;
+	else
+		ACCESS_ONCE(b) = 42;
+
+Don't even -think- about doing this without proper use of memory barriers,
+locks, or atomic operations if variable a can change at runtime!
+
+*** WARNING: ACCESS_ONCE() DOES NOT IMPLY A BARRIER! ***
+
 Now, we move onto the atomic operation interfaces typically implemented with
 the help of assembly code.
 

Documentation/cgroups/memory.txt

@@ -44,8 +44,8 @@ Features:
  - oom-killer disable knob and oom-notifier
  - Root cgroup has no limit controls.
 
- Kernel memory and Hugepages are not under control yet. We just manage
- pages on LRU. To add more controls, we have to take care of performance.
+ Kernel memory support is work in progress, and the current version provides
+ basically functionality. (See Section 2.7)
 
 Brief summary of control files.
 
@@ -72,6 +72,9 @@ Brief summary of control files.
  memory.oom_control		 # set/show oom controls.
  memory.numa_stat		 # show the number of memory usage per numa node
 
+ memory.kmem.tcp.limit_in_bytes  # set/show hard limit for tcp buf memory
+ memory.kmem.tcp.usage_in_bytes  # show current tcp buf memory allocation
+
 1. History
 
 The memory controller has a long history. A request for comments for the memory
@@ -255,6 +258,27 @@ When oom event notifier is registered, event will be delivered.
   per-zone-per-cgroup LRU (cgroup's private LRU) is just guarded by
   zone->lru_lock, it has no lock of its own.
 
+2.7 Kernel Memory Extension (CONFIG_CGROUP_MEM_RES_CTLR_KMEM)
+
+With the Kernel memory extension, the Memory Controller is able to limit
+the amount of kernel memory used by the system. Kernel memory is fundamentally
+different than user memory, since it can't be swapped out, which makes it
+possible to DoS the system by consuming too much of this precious resource.
+
+Kernel memory limits are not imposed for the root cgroup. Usage for the root
+cgroup may or may not be accounted.
+
+Currently no soft limit is implemented for kernel memory. It is future work
+to trigger slab reclaim when those limits are reached.
+
+2.7.1 Current Kernel Memory resources accounted
+
+* sockets memory pressure: some sockets protocols have memory pressure
+thresholds. The Memory Controller allows them to be controlled individually
+per cgroup, instead of globally.
+
+* tcp memory pressure: sockets memory pressure for the tcp protocol.
+
 3. User Interface
 
 0. Configuration

Documentation/cgroups/net_prio.txt

@@ -0,0 +1,53 @@
+Network priority cgroup
+-------------------------
+
+The Network priority cgroup provides an interface to allow an administrator to
+dynamically set the priority of network traffic generated by various
+applications
+
+Nominally, an application would set the priority of its traffic via the
+SO_PRIORITY socket option.  This however, is not always possible because:
+
+1) The application may not have been coded to set this value
+2) The priority of application traffic is often a site-specific administrative
+   decision rather than an application defined one.
+
+This cgroup allows an administrator to assign a process to a group which defines
+the priority of egress traffic on a given interface. Network priority groups can
+be created by first mounting the cgroup filesystem.
+
+# mount -t cgroup -onet_prio none /sys/fs/cgroup/net_prio
+
+With the above step, the initial group acting as the parent accounting group
+becomes visible at '/sys/fs/cgroup/net_prio'.  This group includes all tasks in
+the system. '/sys/fs/cgroup/net_prio/tasks' lists the tasks in this cgroup.
+
+Each net_prio cgroup contains two files that are subsystem specific
+
+net_prio.prioidx
+This file is read-only, and is simply informative.  It contains a unique integer
+value that the kernel uses as an internal representation of this cgroup.
+
+net_prio.ifpriomap
+This file contains a map of the priorities assigned to traffic originating from
+processes in this group and egressing the system on various interfaces. It
+contains a list of tuples in the form <ifname priority>.  Contents of this file
+can be modified by echoing a string into the file using the same tuple format.
+for example:
+
+echo "eth0 5" > /sys/fs/cgroups/net_prio/iscsi/net_prio.ifpriomap
+
+This command would force any traffic originating from processes belonging to the
+iscsi net_prio cgroup and egressing on interface eth0 to have the priority of
+said traffic set to the value 5. The parent accounting group also has a
+writeable 'net_prio.ifpriomap' file that can be used to set a system default
+priority.
+
+Priorities are set immediately prior to queueing a frame to the device
+queueing discipline (qdisc) so priorities will be assigned prior to the hardware
+queue selection being made.
+
+One usage for the net_prio cgroup is with mqprio qdisc allowing application
+traffic to be steered to hardware/driver based traffic classes. These mappings
+can then be managed by administrators or other networking protocols such as
+DCBX.

Documentation/cpu-freq/governors.txt

@@ -127,7 +127,7 @@ in the bash (as said, 1000 is default), do:
 echo `$(($(cat cpuinfo_transition_latency) * 750 / 1000)) \
     >ondemand/sampling_rate
 
-show_sampling_rate_min:
+sampling_rate_min:
 The sampling rate is limited by the HW transition latency:
 transition_latency * 100
 Or by kernel restrictions:
@@ -140,8 +140,6 @@ HZ=100:  min=200000us (200ms)
 The highest value of kernel and HW latency restrictions is shown and
 used as the minimum sampling rate.
 
-show_sampling_rate_max: THIS INTERFACE IS DEPRECATED, DON'T USE IT.
-
 up_threshold: defines what the average CPU usage between the samplings
 of 'sampling_rate' needs to be for the kernel to make a decision on
 whether it should increase the frequency.  For example when it is set

Documentation/development-process/5.Posting

@@ -271,10 +271,10 @@ copies should go to:
    the linux-kernel list.
 
  - If you are fixing a bug, think about whether the fix should go into the
-   next stable update.  If so, stable@kernel.org should get a copy of the
-   patch.  Also add a "Cc: stable@kernel.org" to the tags within the patch
-   itself; that will cause the stable team to get a notification when your
-   fix goes into the mainline.
+   next stable update.  If so, stable@vger.kernel.org should get a copy of
+   the patch.  Also add a "Cc: stable@vger.kernel.org" to the tags within
+   the patch itself; that will cause the stable team to get a notification
+   when your fix goes into the mainline.
 
 When selecting recipients for a patch, it is good to have an idea of who
 you think will eventually accept the patch and get it merged.  While it

Documentation/devices.txt

@@ -379,7 +379,7 @@ Your cooperation is appreciated.
 		162 = /dev/smbus	System Management Bus
 		163 = /dev/lik		Logitech Internet Keyboard
 		164 = /dev/ipmo		Intel Intelligent Platform Management
-		165 = /dev/vmmon	VMWare virtual machine monitor
+		165 = /dev/vmmon	VMware virtual machine monitor
 		166 = /dev/i2o/ctl	I2O configuration manager
 		167 = /dev/specialix_sxctl Specialix serial control
 		168 = /dev/tcldrv	Technology Concepts serial control

Documentation/devicetree/bindings/arm/gic.txt

@@ -42,6 +42,10 @@ Optional
 - interrupts	: Interrupt source of the parent interrupt controller. Only
   present on secondary GICs.
 
+- cpu-offset	: per-cpu offset within the distributor and cpu interface
+  regions, used when the GIC doesn't have banked registers. The offset is
+  cpu-offset * cpu-nr.
+
 Example:
 
 	intc: interrupt-controller@fff11000 {

Documentation/devicetree/bindings/arm/vic.txt

@@ -0,0 +1,29 @@
+* ARM Vectored Interrupt Controller
+
+One or more Vectored Interrupt Controllers (VIC's) can be connected in an ARM
+system for interrupt routing.  For multiple controllers they can either be
+nested or have the outputs wire-OR'd together.
+
+Required properties:
+
+- compatible : should be one of
+	"arm,pl190-vic"
+	"arm,pl192-vic"
+- interrupt-controller : Identifies the node as an interrupt controller
+- #interrupt-cells : The number of cells to define the interrupts.  Must be 1 as
+  the VIC has no configuration options for interrupt sources.  The cell is a u32
+  and defines the interrupt number.
+- reg : The register bank for the VIC.
+
+Optional properties:
+
+- interrupts : Interrupt source for parent controllers if the VIC is nested.
+
+Example:
+
+	vic0: interrupt-controller@60000 {
+		compatible = "arm,pl192-vic";
+		interrupt-controller;
+		#interrupt-cells = <1>;
+		reg = <0x60000 0x1000>;
+	};

Documentation/devicetree/bindings/i2c/i2c-designware.txt

@@ -0,0 +1,22 @@
+* Synopsys DesignWare I2C
+
+Required properties :
+
+ - compatible : should be "snps,designware-i2c"
+ - reg : Offset and length of the register set for the device
+ - interrupts : <IRQ> where IRQ is the interrupt number.
+
+Recommended properties :
+
+ - clock-frequency : desired I2C bus clock frequency in Hz.
+
+Example :
+
+	i2c@f0000 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "snps,designware-i2c";
+		reg = <0xf0000 0x1000>;
+		interrupts = <11>;
+		clock-frequency = <400000>;
+	};

Documentation/devicetree/bindings/i2c/trivial-devices.txt

@@ -0,0 +1,58 @@
+This is a list of trivial i2c devices that have simple device tree
+bindings, consisting only of a compatible field, an address and
+possibly an interrupt line.
+
+If a device needs more specific bindings, such as properties to
+describe some aspect of it, there needs to be a specific binding
+document for it just like any other devices.
+
+
+Compatible		Vendor / Chip
+==========		=============
+ad,ad7414		SMBus/I2C Digital Temperature Sensor in 6-Pin SOT with SMBus Alert and Over Temperature Pin
+ad,adm9240		ADM9240:  Complete System Hardware Monitor for uProcessor-Based Systems
+adi,adt7461		+/-1C TDM Extended Temp Range I.C
+adt7461			+/-1C TDM Extended Temp Range I.C
+at,24c08		i2c serial eeprom  (24cxx)
+atmel,24c02		i2c serial eeprom  (24cxx)
+catalyst,24c32		i2c serial eeprom
+dallas,ds1307		64 x 8, Serial, I2C Real-Time Clock
+dallas,ds1338		I2C RTC with 56-Byte NV RAM
+dallas,ds1339		I2C Serial Real-Time Clock
+dallas,ds1340		I2C RTC with Trickle Charger
+dallas,ds1374		I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
+dallas,ds1631		High-Precision Digital Thermometer
+dallas,ds1682		Total-Elapsed-Time Recorder with Alarm
+dallas,ds1775		Tiny Digital Thermometer and Thermostat
+dallas,ds3232		Extremely Accurate I²C RTC with Integrated Crystal and SRAM
+dallas,ds4510		CPU Supervisor with Nonvolatile Memory and Programmable I/O
+dallas,ds75		Digital Thermometer and Thermostat
+dialog,da9053		DA9053: flexible system level PMIC with multicore support
+epson,rx8025		High-Stability. I2C-Bus INTERFACE REAL TIME CLOCK MODULE
+epson,rx8581		I2C-BUS INTERFACE REAL TIME CLOCK MODULE
+fsl,mag3110		MAG3110: Xtrinsic High Accuracy, 3D Magnetometer
+fsl,mc13892		MC13892: Power Management Integrated Circuit (PMIC) for i.MX35/51
+fsl,mma8450		MMA8450Q: Xtrinsic Low-power, 3-axis Xtrinsic Accelerometer
+fsl,mpr121		MPR121: Proximity Capacitive Touch Sensor Controller
+fsl,sgtl5000		SGTL5000: Ultra Low-Power Audio Codec
+maxim,ds1050		5 Bit Programmable, Pulse-Width Modulator
+maxim,max1237		Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
+maxim,max6625		9-Bit/12-Bit Temperature Sensors with I²C-Compatible Serial Interface
+mc,rv3029c2		Real Time Clock Module with I2C-Bus
+national,lm75		I2C TEMP SENSOR
+national,lm80		Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor
+national,lm92		±0.33°C Accurate, 12-Bit + Sign Temperature Sensor and Thermal Window Comparator with Two-Wire Interface
+nxp,pca9556		Octal SMBus and I2C registered interface
+nxp,pca9557		8-bit I2C-bus and SMBus I/O port with reset
+nxp,pcf8563		Real-time clock/calendar
+ovti,ov5642		OV5642: Color CMOS QSXGA (5-megapixel) Image Sensor with OmniBSI and Embedded TrueFocus
+pericom,pt7c4338	Real-time Clock Module
+plx,pex8648		48-Lane, 12-Port PCI Express Gen 2 (5.0 GT/s) Switch
+ramtron,24c64		i2c serial eeprom  (24cxx)
+ricoh,rs5c372a		I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
+samsung,24ad0xd1	S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power)
+st-micro,24c256		i2c serial eeprom  (24cxx)
+stm,m41t00		Serial Access TIMEKEEPER
+stm,m41t62		Serial real-time clock (RTC) with alarm
+stm,m41t80		M41T80 - SERIAL ACCESS RTC WITH ALARMS
+ti,tsc2003		I2C Touch-Screen Controller

Documentation/devicetree/bindings/net/calxeda-xgmac.txt

@@ -0,0 +1,15 @@
+* Calxeda Highbank 10Gb XGMAC Ethernet
+
+Required properties:
+- compatible : Should be "calxeda,hb-xgmac"
+- reg : Address and length of the register set for the device
+- interrupts : Should contain 3 xgmac interrupts. The 1st is main interrupt.
+  The 2nd is pwr mgt interrupt. The 3rd is low power state interrupt.
+
+Example:
+
+ethernet@fff50000 {
+        compatible = "calxeda,hb-xgmac";
+        reg = <0xfff50000 0x1000>;
+        interrupts = <0 77 4  0 78 4  0 79 4>;
+};

Documentation/devicetree/bindings/net/can/cc770.txt

@@ -0,0 +1,53 @@
+Memory mapped Bosch CC770 and Intel AN82527 CAN controller
+
+Note: The CC770 is a CAN controller from Bosch, which is 100%
+compatible with the old AN82527 from Intel, but with "bugs" being fixed.
+
+Required properties:
+
+- compatible : should be "bosch,cc770" for the CC770 and "intc,82527"
+	for the AN82527.
+
+- reg : should specify the chip select, address offset and size required
+	to map the registers of the controller. The size is usually 0x80.
+
+- interrupts : property with a value describing the interrupt source
+	(number and sensitivity) required for the controller.
+
+Optional properties:
+
+- bosch,external-clock-frequency : frequency of the external oscillator
+	clock in Hz. Note that the internal clock frequency used by the
+	controller is half of that value. If not specified, a default
+	value of 16000000 (16 MHz) is used.
+
+- bosch,clock-out-frequency : slock frequency in Hz on the CLKOUT pin.
+	If not specified or if the specified value is 0, the CLKOUT pin
+	will be disabled.
+
+- bosch,slew-rate : slew rate of the CLKOUT signal. If not specified,
+	a resonable value will be calculated.
+
+- bosch,disconnect-rx0-input : see data sheet.
+
+- bosch,disconnect-rx1-input : see data sheet.
+
+- bosch,disconnect-tx1-output : see data sheet.
+
+- bosch,polarity-dominant : see data sheet.
+
+- bosch,divide-memory-clock : see data sheet.
+
+- bosch,iso-low-speed-mux : see data sheet.
+
+For further information, please have a look to the CC770 or AN82527.
+
+Examples:
+
+can@3,100 {
+	compatible = "bosch,cc770";
+	reg = <3 0x100 0x80>;
+	interrupts = <2 0>;
+	interrupt-parent = <&mpic>;
+	bosch,external-clock-frequency = <16000000>;
+};

Documentation/devicetree/bindings/powerpc/fsl/srio-rmu.txt

@@ -0,0 +1,163 @@
+Message unit node:
+
+For SRIO controllers that implement the message unit as part of the controller
+this node is required.  For devices with RMAN this node should NOT exist.  The
+node is composed of three types of sub-nodes ("fsl-srio-msg-unit",
+"fsl-srio-dbell-unit" and "fsl-srio-port-write-unit").
+
+See srio.txt for more details about generic SRIO controller details.
+
+   - compatible
+	Usage: required
+	Value type: <string>
+	Definition: Must include "fsl,srio-rmu-vX.Y", "fsl,srio-rmu".
+
+	The version X.Y should match the general SRIO controller's IP Block
+	revision register's Major(X) and Minor (Y) value.
+
+   - reg
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: A standard property.  Specifies the physical address and
+		length of the SRIO configuration registers for message units
+		and doorbell units.
+
+   - fsl,liodn
+	Usage: optional-but-recommended (for devices with PAMU)
+	Value type: <prop-encoded-array>
+	Definition: The logical I/O device number for the PAMU (IOMMU) to be
+		correctly configured for SRIO accesses.  The property should
+		not exist on devices that do not support PAMU.
+
+		The LIODN value is associated with all RMU transactions
+		(msg-unit, doorbell, port-write).
+
+Sub-Nodes for RMU:  The RMU node is composed of multiple sub-nodes that
+correspond to the actual sub-controllers in the RMU.  The manual for a given
+SoC will detail which and how many of these sub-controllers are implemented.
+
+Message Unit:
+
+   - compatible
+	Usage: required
+	Value type: <string>
+	Definition: Must include "fsl,srio-msg-unit-vX.Y", "fsl,srio-msg-unit".
+
+	The version X.Y should match the general SRIO controller's IP Block
+	revision register's Major(X) and Minor (Y) value.
+
+   - reg
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: A standard property.  Specifies the physical address and
+		length of the SRIO configuration registers for message units
+		and doorbell units.
+
+   - interrupts
+	Usage: required
+	Value type: <prop_encoded-array>
+	Definition:  Specifies the interrupts generated by this device.  The
+		value of the interrupts property consists of one interrupt
+		specifier. The format of the specifier is defined by the
+		binding document describing the node's interrupt parent.
+
+		A pair of IRQs are specified in this property.  The first
+		element is associated with the transmit (TX) interrupt and the
+		second element is associated with the receive (RX) interrupt.
+
+Doorbell Unit:
+
+   - compatible
+	Usage: required
+	Value type: <string>
+	Definition: Must include:
+		"fsl,srio-dbell-unit-vX.Y", "fsl,srio-dbell-unit"
+
+	The version X.Y should match the general SRIO controller's IP Block
+	revision register's Major(X) and Minor (Y) value.
+
+   - reg
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: A standard property.  Specifies the physical address and
+		length of the SRIO configuration registers for message units
+		and doorbell units.
+
+   - interrupts
+	Usage: required
+	Value type: <prop_encoded-array>
+	Definition:  Specifies the interrupts generated by this device.  The
+		value of the interrupts property consists of one interrupt
+		specifier. The format of the specifier is defined by the
+		binding document describing the node's interrupt parent.
+
+		A pair of IRQs are specified in this property.  The first
+		element is associated with the transmit (TX) interrupt and the
+		second element is associated with the receive (RX) interrupt.
+
+Port-Write Unit:
+
+   - compatible
+	Usage: required
+	Value type: <string>
+	Definition: Must include:
+		 "fsl,srio-port-write-unit-vX.Y", "fsl,srio-port-write-unit"
+
+	The version X.Y should match the general SRIO controller's IP Block
+	revision register's Major(X) and Minor (Y) value.
+
+   - reg
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: A standard property.  Specifies the physical address and
+		length of the SRIO configuration registers for message units
+		and doorbell units.
+
+   - interrupts
+	Usage: required
+	Value type: <prop_encoded-array>
+	Definition:  Specifies the interrupts generated by this device.  The
+		value of the interrupts property consists of one interrupt
+		specifier. The format of the specifier is defined by the
+		binding document describing the node's interrupt parent.
+
+		A single IRQ that handles port-write conditions is
+		specified by this property.  (Typically shared with error).
+
+   Note: All other standard properties (see the ePAPR) are allowed
+   but are optional.
+
+Example:
+	rmu: rmu@d3000 {
+		compatible = "fsl,srio-rmu";
+		reg = <0xd3000 0x400>;
+		ranges = <0x0 0xd3000 0x400>;
+		fsl,liodn = <0xc8>;
+
+		message-unit@0 {
+			compatible = "fsl,srio-msg-unit";
+			reg = <0x0 0x100>;
+			interrupts = <
+				60 2 0 0  /* msg1_tx_irq */
+				61 2 0 0>;/* msg1_rx_irq */
+		};
+		message-unit@100 {
+			compatible = "fsl,srio-msg-unit";
+			reg = <0x100 0x100>;
+			interrupts = <
+				62 2 0 0  /* msg2_tx_irq */
+				63 2 0 0>;/* msg2_rx_irq */
+		};
+		doorbell-unit@400 {
+			compatible = "fsl,srio-dbell-unit";
+			reg = <0x400 0x80>;
+			interrupts = <
+				56 2 0 0  /* bell_outb_irq */
+				57 2 0 0>;/* bell_inb_irq */
+		};
+		port-write-unit@4e0 {
+			compatible = "fsl,srio-port-write-unit";
+			reg = <0x4e0 0x20>;
+			interrupts = <16 2 1 11>;
+		};
+	};

Documentation/devicetree/bindings/powerpc/fsl/srio.txt

@@ -0,0 +1,103 @@
+* Freescale Serial RapidIO (SRIO) Controller
+
+RapidIO port node:
+Properties:
+   - compatible
+	Usage: required
+	Value type: <string>
+	Definition: Must include "fsl,srio" for IP blocks with IP Block
+	Revision Register (SRIO IPBRR1) Major ID equal to 0x01c0.
+
+	Optionally, a compatiable string of "fsl,srio-vX.Y" where X is Major
+	version in IP Block Revision Register and Y is Minor version.  If this
+	compatiable is provided it should be ordered before "fsl,srio".
+
+   - reg
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: A standard property.  Specifies the physical address and
+		length of the SRIO configuration registers.  The size should
+		be set to 0x11000.
+
+   - interrupts
+	Usage: required
+	Value type: <prop_encoded-array>
+	Definition:  Specifies the interrupts generated by this device.  The
+		value of the interrupts property consists of one interrupt
+		specifier. The format of the specifier is defined by the
+		binding document describing the node's interrupt parent.
+
+		A single IRQ that handles error conditions is specified by this
+		property.  (Typically shared with port-write).
+
+   - fsl,srio-rmu-handle:
+	Usage: required if rmu node is defined
+	Value type: <phandle>
+	Definition: A single <phandle> value that points to the RMU.
+	(See srio-rmu.txt for more details on RMU node binding)
+
+Port Child Nodes:  There should a port child node for each port that exists in
+the controller.  The ports are numbered starting at one (1) and should have
+the following properties:
+
+   - cell-index
+	Usage: required
+	Value type: <u32>
+	Definition: A standard property.  Matches the port id.
+
+   - ranges
+	Usage: required if local access windows preset
+	Value type: <prop-encoded-array>
+	Definition: A standard property. Utilized to describe the memory mapped
+		IO space utilized by the controller.  This corresponds to the
+		setting of the local access windows that are targeted to this
+		SRIO port.
+
+   - fsl,liodn
+	Usage: optional-but-recommended (for devices with PAMU)
+	Value type: <prop-encoded-array>
+	Definition: The logical I/O device number for the PAMU (IOMMU) to be
+		correctly configured for SRIO accesses.  The property should
+		not exist on devices that do not support PAMU.
+
+		For HW (ie, the P4080) that only supports a LIODN for both
+		memory and maintenance transactions then a single LIODN is
+		represented in the property for both transactions.
+
+		For HW (ie, the P304x/P5020, etc) that supports an LIODN for
+		memory transactions and a unique LIODN for maintenance
+		transactions then a pair of LIODNs are represented in the
+		property.  Within the pair, the first element represents the
+		LIODN associated with memory transactions and the second element
+		represents the LIODN associated with maintenance transactions
+		for the port.
+
+Note: All other standard properties (see ePAPR) are allowed but are optional.
+
+Example:
+
+	rapidio: rapidio@ffe0c0000 {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		reg = <0xf 0xfe0c0000 0 0x11000>;
+		compatible = "fsl,srio";
+		interrupts = <16 2 1 11>; /* err_irq */
+		fsl,srio-rmu-handle = <&rmu>;
+		ranges;
+
+		port1 {
+			cell-index = <1>;
+			#address-cells = <2>;
+			#size-cells = <2>;
+			fsl,liodn = <34>;
+			ranges = <0 0 0xc 0x20000000 0 0x10000000>;
+		};
+
+		port2 {
+			cell-index = <2>;
+			#address-cells = <2>;
+			#size-cells = <2>;
+			fsl,liodn = <48>;
+			ranges = <0 0 0xc 0x30000000 0 0x10000000>;
+		};
+	};

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -8,7 +8,9 @@ amcc	Applied Micro Circuits Corporation (APM, formally AMCC)
 apm	Applied Micro Circuits Corporation (APM)
 arm	ARM Ltd.
 atmel	Atmel Corporation
+cavium	Cavium, Inc.
 chrp	Common Hardware Reference Platform
+cortina	Cortina Systems, Inc.
 dallas	Maxim Integrated Products (formerly Dallas Semiconductor)
 denx	Denx Software Engineering
 epson	Seiko Epson Corp.
@@ -33,8 +35,10 @@ qcom	Qualcomm, Inc.
 ramtron	Ramtron International
 samsung	Samsung Semiconductor
 schindler	Schindler
+sil	Silicon Image
 simtek
 sirf	SiRF Technology, Inc.
+st	STMicroelectronics
 stericsson	ST-Ericsson
 ti	Texas Instruments
 xlnx	Xilinx

Documentation/dma-buf-sharing.txt

@@ -0,0 +1,224 @@
+                    DMA Buffer Sharing API Guide
+                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+                            Sumit Semwal
+                <sumit dot semwal at linaro dot org>
+                 <sumit dot semwal at ti dot com>
+
+This document serves as a guide to device-driver writers on what is the dma-buf
+buffer sharing API, how to use it for exporting and using shared buffers.
+
+Any device driver which wishes to be a part of DMA buffer sharing, can do so as
+either the 'exporter' of buffers, or the 'user' of buffers.
+
+Say a driver A wants to use buffers created by driver B, then we call B as the
+exporter, and A as buffer-user.
+
+The exporter
+- implements and manages operations[1] for the buffer
+- allows other users to share the buffer by using dma_buf sharing APIs,
+- manages the details of buffer allocation,
+- decides about the actual backing storage where this allocation happens,
+- takes care of any migration of scatterlist - for all (shared) users of this
+   buffer,
+
+The buffer-user
+- is one of (many) sharing users of the buffer.
+- doesn't need to worry about how the buffer is allocated, or where.
+- needs a mechanism to get access to the scatterlist that makes up this buffer
+   in memory, mapped into its own address space, so it can access the same area
+   of memory.
+
+*IMPORTANT*: [see https://lkml.org/lkml/2011/12/20/211 for more details]
+For this first version, A buffer shared using the dma_buf sharing API:
+- *may* be exported to user space using "mmap" *ONLY* by exporter, outside of
+   this framework.
+- may be used *ONLY* by importers that do not need CPU access to the buffer.
+
+The dma_buf buffer sharing API usage contains the following steps:
+
+1. Exporter announces that it wishes to export a buffer
+2. Userspace gets the file descriptor associated with the exported buffer, and
+   passes it around to potential buffer-users based on use case
+3. Each buffer-user 'connects' itself to the buffer
+4. When needed, buffer-user requests access to the buffer from exporter
+5. When finished with its use, the buffer-user notifies end-of-DMA to exporter
+6. when buffer-user is done using this buffer completely, it 'disconnects'
+   itself from the buffer.
+
+
+1. Exporter's announcement of buffer export
+
+   The buffer exporter announces its wish to export a buffer. In this, it
+   connects its own private buffer data, provides implementation for operations
+   that can be performed on the exported dma_buf, and flags for the file
+   associated with this buffer.
+
+   Interface:
+      struct dma_buf *dma_buf_export(void *priv, struct dma_buf_ops *ops,
+				     size_t size, int flags)
+
+   If this succeeds, dma_buf_export allocates a dma_buf structure, and returns a
+   pointer to the same. It also associates an anonymous file with this buffer,
+   so it can be exported. On failure to allocate the dma_buf object, it returns
+   NULL.
+
+2. Userspace gets a handle to pass around to potential buffer-users
+
+   Userspace entity requests for a file-descriptor (fd) which is a handle to the
+   anonymous file associated with the buffer. It can then share the fd with other
+   drivers and/or processes.
+
+   Interface:
+      int dma_buf_fd(struct dma_buf *dmabuf)
+
+   This API installs an fd for the anonymous file associated with this buffer;
+   returns either 'fd', or error.
+
+3. Each buffer-user 'connects' itself to the buffer
+
+   Each buffer-user now gets a reference to the buffer, using the fd passed to
+   it.
+
+   Interface:
+      struct dma_buf *dma_buf_get(int fd)
+
+   This API will return a reference to the dma_buf, and increment refcount for
+   it.
+
+   After this, the buffer-user needs to attach its device with the buffer, which
+   helps the exporter to know of device buffer constraints.
+
+   Interface:
+      struct dma_buf_attachment *dma_buf_attach(struct dma_buf *dmabuf,
+                                                struct device *dev)
+
+   This API returns reference to an attachment structure, which is then used
+   for scatterlist operations. It will optionally call the 'attach' dma_buf
+   operation, if provided by the exporter.
+
+   The dma-buf sharing framework does the bookkeeping bits related to managing
+   the list of all attachments to a buffer.
+
+Until this stage, the buffer-exporter has the option to choose not to actually
+allocate the backing storage for this buffer, but wait for the first buffer-user
+to request use of buffer for allocation.
+
+
+4. When needed, buffer-user requests access to the buffer
+
+   Whenever a buffer-user wants to use the buffer for any DMA, it asks for
+   access to the buffer using dma_buf_map_attachment API. At least one attach to
+   the buffer must have happened before map_dma_buf can be called.
+
+   Interface:
+      struct sg_table * dma_buf_map_attachment(struct dma_buf_attachment *,
+                                         enum dma_data_direction);
+
+   This is a wrapper to dma_buf->ops->map_dma_buf operation, which hides the
+   "dma_buf->ops->" indirection from the users of this interface.
+
+   In struct dma_buf_ops, map_dma_buf is defined as
+      struct sg_table * (*map_dma_buf)(struct dma_buf_attachment *,
+                                                enum dma_data_direction);
+
+   It is one of the buffer operations that must be implemented by the exporter.
+   It should return the sg_table containing scatterlist for this buffer, mapped
+   into caller's address space.
+
+   If this is being called for the first time, the exporter can now choose to
+   scan through the list of attachments for this buffer, collate the requirements
+   of the attached devices, and choose an appropriate backing storage for the
+   buffer.
+
+   Based on enum dma_data_direction, it might be possible to have multiple users
+   accessing at the same time (for reading, maybe), or any other kind of sharing
+   that the exporter might wish to make available to buffer-users.
+
+   map_dma_buf() operation can return -EINTR if it is interrupted by a signal.
+
+
+5. When finished, the buffer-user notifies end-of-DMA to exporter
+
+   Once the DMA for the current buffer-user is over, it signals 'end-of-DMA' to
+   the exporter using the dma_buf_unmap_attachment API.
+
+   Interface:
+      void dma_buf_unmap_attachment(struct dma_buf_attachment *,
+                                    struct sg_table *);
+
+   This is a wrapper to dma_buf->ops->unmap_dma_buf() operation, which hides the
+   "dma_buf->ops->" indirection from the users of this interface.
+
+   In struct dma_buf_ops, unmap_dma_buf is defined as
+      void (*unmap_dma_buf)(struct dma_buf_attachment *, struct sg_table *);
+
+   unmap_dma_buf signifies the end-of-DMA for the attachment provided. Like
+   map_dma_buf, this API also must be implemented by the exporter.
+
+
+6. when buffer-user is done using this buffer, it 'disconnects' itself from the
+   buffer.
+
+   After the buffer-user has no more interest in using this buffer, it should
+   disconnect itself from the buffer:
+
+   - it first detaches itself from the buffer.
+
+   Interface:
+      void dma_buf_detach(struct dma_buf *dmabuf,
+                          struct dma_buf_attachment *dmabuf_attach);
+
+   This API removes the attachment from the list in dmabuf, and optionally calls
+   dma_buf->ops->detach(), if provided by exporter, for any housekeeping bits.
+
+   - Then, the buffer-user returns the buffer reference to exporter.
+
+   Interface:
+     void dma_buf_put(struct dma_buf *dmabuf);
+
+   This API then reduces the refcount for this buffer.
+
+   If, as a result of this call, the refcount becomes 0, the 'release' file
+   operation related to this fd is called. It calls the dmabuf->ops->release()
+   operation in turn, and frees the memory allocated for dmabuf when exported.
+
+NOTES:
+- Importance of attach-detach and {map,unmap}_dma_buf operation pairs
+   The attach-detach calls allow the exporter to figure out backing-storage
+   constraints for the currently-interested devices. This allows preferential
+   allocation, and/or migration of pages across different types of storage
+   available, if possible.
+
+   Bracketing of DMA access with {map,unmap}_dma_buf operations is essential
+   to allow just-in-time backing of storage, and migration mid-way through a
+   use-case.
+
+- Migration of backing storage if needed
+   If after
+   - at least one map_dma_buf has happened,
+   - and the backing storage has been allocated for this buffer,
+   another new buffer-user intends to attach itself to this buffer, it might
+   be allowed, if possible for the exporter.
+
+   In case it is allowed by the exporter:
+    if the new buffer-user has stricter 'backing-storage constraints', and the
+    exporter can handle these constraints, the exporter can just stall on the
+    map_dma_buf until all outstanding access is completed (as signalled by
+    unmap_dma_buf).
+    Once all users have finished accessing and have unmapped this buffer, the
+    exporter could potentially move the buffer to the stricter backing-storage,
+    and then allow further {map,unmap}_dma_buf operations from any buffer-user
+    from the migrated backing-storage.
+
+   If the exporter cannot fulfil the backing-storage constraints of the new
+   buffer-user device as requested, dma_buf_attach() would return an error to
+   denote non-compatibility of the new buffer-sharing request with the current
+   buffer.
+
+   If the exporter chooses not to allow an attach() operation once a
+   map_dma_buf() API has been called, it simply returns an error.
+
+References:
+[1] struct dma_buf_ops in include/linux/dma-buf.h
+[2] All interfaces mentioned above defined in include/linux/dma-buf.h

Documentation/driver-model/devres.txt

@@ -262,6 +262,7 @@ IOMAP
   devm_ioremap()
   devm_ioremap_nocache()
   devm_iounmap()
+  devm_request_and_ioremap() : checks resource, requests region, ioremaps
   pcim_iomap()
   pcim_iounmap()
   pcim_iomap_table()	: array of mapped addresses indexed by BAR

Documentation/feature-removal-schedule.txt

@@ -85,17 +85,6 @@ Who:	Robin Getz <rgetz@blackfin.uclinux.org> & Matt Mackall <mpm@selenic.com>
 
 ---------------------------
 
-What:	Deprecated snapshot ioctls
-When:	2.6.36
-
-Why:	The ioctls in kernel/power/user.c were marked as deprecated long time
-	ago. Now they notify users about that so that they need to replace
-	their userspace. After some more time, remove them completely.
-
-Who:	Jiri Slaby <jirislaby@gmail.com>
-
----------------------------
-
 What:	The ieee80211_regdom module parameter
 When:	March 2010 / desktop catchup
 
@@ -263,8 +252,7 @@ Who:	Ravikiran Thirumalai <kiran@scalex86.org>
 
 What:	Code that is now under CONFIG_WIRELESS_EXT_SYSFS
 	(in net/core/net-sysfs.c)
-When:	After the only user (hal) has seen a release with the patches
-	for enough time, probably some time in 2010.
+When:	3.5
 Why:	Over 1K .text/.data size reduction, data is available in other
 	ways (ioctls)
 Who:	Johannes Berg <johannes@sipsolutions.net>

Documentation/filesystems/Locking

@@ -37,15 +37,15 @@ d_manage:	no		no		yes (ref-walk)	maybe
 
 --------------------------- inode_operations --------------------------- 
 prototypes:
-	int (*create) (struct inode *,struct dentry *,int, struct nameidata *);
+	int (*create) (struct inode *,struct dentry *,umode_t, struct nameidata *);
 	struct dentry * (*lookup) (struct inode *,struct dentry *, struct nameid
 ata *);
 	int (*link) (struct dentry *,struct inode *,struct dentry *);
 	int (*unlink) (struct inode *,struct dentry *);
 	int (*symlink) (struct inode *,struct dentry *,const char *);
-	int (*mkdir) (struct inode *,struct dentry *,int);
+	int (*mkdir) (struct inode *,struct dentry *,umode_t);
 	int (*rmdir) (struct inode *,struct dentry *);
-	int (*mknod) (struct inode *,struct dentry *,int,dev_t);
+	int (*mknod) (struct inode *,struct dentry *,umode_t,dev_t);
 	int (*rename) (struct inode *, struct dentry *,
 			struct inode *, struct dentry *);
 	int (*readlink) (struct dentry *, char __user *,int);
@@ -117,7 +117,7 @@ prototypes:
 	int (*statfs) (struct dentry *, struct kstatfs *);
 	int (*remount_fs) (struct super_block *, int *, char *);
 	void (*umount_begin) (struct super_block *);
-	int (*show_options)(struct seq_file *, struct vfsmount *);
+	int (*show_options)(struct seq_file *, struct dentry *);
 	ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t);
 	ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t);
 	int (*bdev_try_to_free_page)(struct super_block*, struct page*, gfp_t);

Documentation/filesystems/btrfs.txt

@@ -63,8 +63,8 @@ IRC network.
 Userspace tools for creating and manipulating Btrfs file systems are
 available from the git repository at the following location:
 
- http://git.kernel.org/?p=linux/kernel/git/mason/btrfs-progs-unstable.git
- git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs-unstable.git
+ http://git.kernel.org/?p=linux/kernel/git/mason/btrfs-progs.git
+ git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs.git
 
 These include the following tools:
 

Documentation/filesystems/configfs/configfs.txt

@@ -192,7 +192,7 @@ attribute value uses the store_attribute() method.
 	struct configfs_attribute {
 		char                    *ca_name;
 		struct module           *ca_owner;
-		mode_t                  ca_mode;
+		umode_t                  ca_mode;
 	};
 
 When a config_item wants an attribute to appear as a file in the item's

Documentation/filesystems/debugfs.txt

@@ -35,7 +35,7 @@ described below will work.
 
 The most general way to create a file within a debugfs directory is with:
 
-    struct dentry *debugfs_create_file(const char *name, mode_t mode,
+    struct dentry *debugfs_create_file(const char *name, umode_t mode,
 				       struct dentry *parent, void *data,
 				       const struct file_operations *fops);
 
@@ -53,13 +53,13 @@ actually necessary; the debugfs code provides a number of helper functions
 for simple situations.  Files containing a single integer value can be
 created with any of:
 
-    struct dentry *debugfs_create_u8(const char *name, mode_t mode,
+    struct dentry *debugfs_create_u8(const char *name, umode_t mode,
 				     struct dentry *parent, u8 *value);
-    struct dentry *debugfs_create_u16(const char *name, mode_t mode,
+    struct dentry *debugfs_create_u16(const char *name, umode_t mode,
 				      struct dentry *parent, u16 *value);
-    struct dentry *debugfs_create_u32(const char *name, mode_t mode,
+    struct dentry *debugfs_create_u32(const char *name, umode_t mode,
 				      struct dentry *parent, u32 *value);
-    struct dentry *debugfs_create_u64(const char *name, mode_t mode,
+    struct dentry *debugfs_create_u64(const char *name, umode_t mode,
 				      struct dentry *parent, u64 *value);
 
 These files support both reading and writing the given value; if a specific
@@ -67,13 +67,13 @@ file should not be written to, simply set the mode bits accordingly.  The
 values in these files are in decimal; if hexadecimal is more appropriate,
 the following functions can be used instead:
 
-    struct dentry *debugfs_create_x8(const char *name, mode_t mode,
+    struct dentry *debugfs_create_x8(const char *name, umode_t mode,
 				     struct dentry *parent, u8 *value);
-    struct dentry *debugfs_create_x16(const char *name, mode_t mode,
+    struct dentry *debugfs_create_x16(const char *name, umode_t mode,
 				      struct dentry *parent, u16 *value);
-    struct dentry *debugfs_create_x32(const char *name, mode_t mode,
+    struct dentry *debugfs_create_x32(const char *name, umode_t mode,
 				      struct dentry *parent, u32 *value);
-    struct dentry *debugfs_create_x64(const char *name, mode_t mode,
+    struct dentry *debugfs_create_x64(const char *name, umode_t mode,
 				      struct dentry *parent, u64 *value);
 
 These functions are useful as long as the developer knows the size of the
@@ -81,7 +81,7 @@ value to be exported.  Some types can have different widths on different
 architectures, though, complicating the situation somewhat.  There is a
 function meant to help out in one special case:
 
-    struct dentry *debugfs_create_size_t(const char *name, mode_t mode,
+    struct dentry *debugfs_create_size_t(const char *name, umode_t mode,
 				         struct dentry *parent, 
 					 size_t *value);
 
@@ -90,21 +90,22 @@ a variable of type size_t.
 
 Boolean values can be placed in debugfs with:
 
-    struct dentry *debugfs_create_bool(const char *name, mode_t mode,
+    struct dentry *debugfs_create_bool(const char *name, umode_t mode,
 				       struct dentry *parent, u32 *value);
 
 A read on the resulting file will yield either Y (for non-zero values) or
 N, followed by a newline.  If written to, it will accept either upper- or
 lower-case values, or 1 or 0.  Any other input will be silently ignored.
 
-Finally, a block of arbitrary binary data can be exported with:
+Another option is exporting a block of arbitrary binary data, with
+this structure and function:
 
     struct debugfs_blob_wrapper {
 	void *data;
 	unsigned long size;
     };
 
-    struct dentry *debugfs_create_blob(const char *name, mode_t mode,
+    struct dentry *debugfs_create_blob(const char *name, umode_t mode,
 				       struct dentry *parent,
 				       struct debugfs_blob_wrapper *blob);
 
@@ -115,6 +116,35 @@ can be used to export binary information, but there does not appear to be
 any code which does so in the mainline.  Note that all files created with
 debugfs_create_blob() are read-only.
 
+If you want to dump a block of registers (something that happens quite
+often during development, even if little such code reaches mainline.
+Debugfs offers two functions: one to make a registers-only file, and
+another to insert a register block in the middle of another sequential
+file.
+
+    struct debugfs_reg32 {
+	char *name;
+	unsigned long offset;
+    };
+
+    struct debugfs_regset32 {
+	struct debugfs_reg32 *regs;
+	int nregs;
+	void __iomem *base;
+    };
+
+    struct dentry *debugfs_create_regset32(const char *name, mode_t mode,
+				     struct dentry *parent,
+				     struct debugfs_regset32 *regset);
+
+    int debugfs_print_regs32(struct seq_file *s, struct debugfs_reg32 *regs,
+			 int nregs, void __iomem *base, char *prefix);
+
+The "base" argument may be 0, but you may want to build the reg32 array
+using __stringify, and a number of register names (macros) are actually
+byte offsets over a base for the register block.
+
+
 There are a couple of other directory-oriented helper functions:
 
     struct dentry *debugfs_rename(struct dentry *old_dir, 

Documentation/filesystems/sysfs.txt

@@ -70,7 +70,7 @@ An attribute definition is simply:
 struct attribute {
         char                    * name;
         struct module		*owner;
-        mode_t                  mode;
+        umode_t                 mode;
 };
 
 

Documentation/filesystems/vfs.txt

@@ -225,7 +225,7 @@ struct super_operations {
         void (*clear_inode) (struct inode *);
         void (*umount_begin) (struct super_block *);
 
-        int (*show_options)(struct seq_file *, struct vfsmount *);
+        int (*show_options)(struct seq_file *, struct dentry *);
 
         ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t);
         ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t);
@@ -341,14 +341,14 @@ This describes how the VFS can manipulate an inode in your
 filesystem. As of kernel 2.6.22, the following members are defined:
 
 struct inode_operations {
-	int (*create) (struct inode *,struct dentry *,int, struct nameidata *);
+	int (*create) (struct inode *,struct dentry *, umode_t, struct nameidata *);
 	struct dentry * (*lookup) (struct inode *,struct dentry *, struct nameidata *);
 	int (*link) (struct dentry *,struct inode *,struct dentry *);
 	int (*unlink) (struct inode *,struct dentry *);
 	int (*symlink) (struct inode *,struct dentry *,const char *);
-	int (*mkdir) (struct inode *,struct dentry *,int);
+	int (*mkdir) (struct inode *,struct dentry *,umode_t);
 	int (*rmdir) (struct inode *,struct dentry *);
-	int (*mknod) (struct inode *,struct dentry *,int,dev_t);
+	int (*mknod) (struct inode *,struct dentry *,umode_t,dev_t);
 	int (*rename) (struct inode *, struct dentry *,
 			struct inode *, struct dentry *);
 	int (*readlink) (struct dentry *, char __user *,int);

Documentation/hwmon/pmbus

@@ -2,9 +2,8 @@ Kernel driver pmbus
 ====================
 
 Supported chips:
-  * Ericsson BMR45X series
-    DC/DC Converter
-    Prefixes: 'bmr450', 'bmr451', 'bmr453', 'bmr454'
+  * Ericsson BMR453, BMR454
+    Prefixes: 'bmr453', 'bmr454'
     Addresses scanned: -
     Datasheet:
  http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146395

Documentation/hwmon/zl6100

@@ -6,6 +6,10 @@ Supported chips:
     Prefix: 'zl2004'
     Addresses scanned: -
     Datasheet: http://www.intersil.com/data/fn/fn6847.pdf
+  * Intersil / Zilker Labs ZL2005
+    Prefix: 'zl2005'
+    Addresses scanned: -
+    Datasheet: http://www.intersil.com/data/fn/fn6848.pdf
   * Intersil / Zilker Labs ZL2006
     Prefix: 'zl2006'
     Addresses scanned: -
@@ -30,6 +34,17 @@ Supported chips:
     Prefix: 'zl6105'
     Addresses scanned: -
     Datasheet: http://www.intersil.com/data/fn/fn6906.pdf
+  * Ericsson BMR450, BMR451
+    Prefix: 'bmr450', 'bmr451'
+    Addresses scanned: -
+    Datasheet:
+http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146401
+  * Ericsson BMR462, BMR463, BMR464
+    Prefixes: 'bmr462', 'bmr463', 'bmr464'
+    Addresses scanned: -
+    Datasheet:
+http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146256
+
 
 Author: Guenter Roeck <guenter.roeck@ericsson.com>
 

Documentation/kernel-parameters.txt

@@ -315,12 +315,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			CPU-intensive style benchmark, and it can vary highly in
 			a microbenchmark depending on workload and compiler.
 
-			1: only for 32-bit processes
-			2: only for 64-bit processes
+			32: only for 32-bit processes
+			64: only for 64-bit processes
 			on: enable for both 32- and 64-bit processes
 			off: disable for both 32- and 64-bit processes
 
-	amd_iommu=	[HW,X86-84]
+	amd_iommu=	[HW,X86-64]
 			Pass parameters to the AMD IOMMU driver in the system.
 			Possible values are:
 			fullflush - enable flushing of IO/TLB entries when
@@ -1885,6 +1885,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			arch_perfmon: [X86] Force use of architectural
 				perfmon on Intel CPUs instead of the
 				CPU specific event set.
+			timer: [X86] Force use of architectural NMI
+				timer mode (see also oprofile.timer
+				for generic hr timer mode)
+				[s390] Force legacy basic mode sampling
+                                (report cpu_type "timer")
 
 	oops=panic	Always panic on oopses. Default is to just kill the
 			process, but there is a small probability of
@@ -2750,11 +2755,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			functions are at fixed addresses, they make nice
 			targets for exploits that can control RIP.
 
-			emulate     Vsyscalls turn into traps and are emulated
-			            reasonably safely.
+			emulate     [default] Vsyscalls turn into traps and are
+			            emulated reasonably safely.
 
-			native      [default] Vsyscalls are native syscall
-			            instructions.
+			native      Vsyscalls are native syscall instructions.
 			            This is a little bit faster than trapping
 			            and makes a few dynamic recompilers work
 			            better than they would in emulation mode.

Documentation/lockdep-design.txt

@@ -221,3 +221,66 @@ when the chain is validated for the first time, is then put into a hash
 table, which hash-table can be checked in a lockfree manner. If the
 locking chain occurs again later on, the hash table tells us that we
 dont have to validate the chain again.
+
+Troubleshooting:
+----------------
+
+The validator tracks a maximum of MAX_LOCKDEP_KEYS number of lock classes.
+Exceeding this number will trigger the following lockdep warning:
+
+	(DEBUG_LOCKS_WARN_ON(id >= MAX_LOCKDEP_KEYS))
+
+By default, MAX_LOCKDEP_KEYS is currently set to 8191, and typical
+desktop systems have less than 1,000 lock classes, so this warning
+normally results from lock-class leakage or failure to properly
+initialize locks.  These two problems are illustrated below:
+
+1.	Repeated module loading and unloading while running the validator
+	will result in lock-class leakage.  The issue here is that each
+	load of the module will create a new set of lock classes for
+	that module's locks, but module unloading does not remove old
+	classes (see below discussion of reuse of lock classes for why).
+	Therefore, if that module is loaded and unloaded repeatedly,
+	the number of lock classes will eventually reach the maximum.
+
+2.	Using structures such as arrays that have large numbers of
+	locks that are not explicitly initialized.  For example,
+	a hash table with 8192 buckets where each bucket has its own
+	spinlock_t will consume 8192 lock classes -unless- each spinlock
+	is explicitly initialized at runtime, for example, using the
+	run-time spin_lock_init() as opposed to compile-time initializers
+	such as __SPIN_LOCK_UNLOCKED().  Failure to properly initialize
+	the per-bucket spinlocks would guarantee lock-class overflow.
+	In contrast, a loop that called spin_lock_init() on each lock
+	would place all 8192 locks into a single lock class.
+
+	The moral of this story is that you should always explicitly
+	initialize your locks.
+
+One might argue that the validator should be modified to allow
+lock classes to be reused.  However, if you are tempted to make this
+argument, first review the code and think through the changes that would
+be required, keeping in mind that the lock classes to be removed are
+likely to be linked into the lock-dependency graph.  This turns out to
+be harder to do than to say.
+
+Of course, if you do run out of lock classes, the next thing to do is
+to find the offending lock classes.  First, the following command gives
+you the number of lock classes currently in use along with the maximum:
+
+	grep "lock-classes" /proc/lockdep_stats
+
+This command produces the following output on a modest system:
+
+	 lock-classes:                          748 [max: 8191]
+
+If the number allocated (748 above) increases continually over time,
+then there is likely a leak.  The following command can be used to
+identify the leaking lock classes:
+
+	grep "BD" /proc/lockdep
+
+Run the command and save the output, then compare against the output from
+a later run of this command to identify the leakers.  This same output
+can also help you find situations where runtime lock initialization has
+been omitted.

Documentation/md.txt

@@ -357,14 +357,14 @@ Each directory contains:
         written to, that device.
 
       state
-        A file recording the current state of the device in the array
+	A file recording the current state of the device in the array
 	which can be a comma separated list of
 	      faulty   - device has been kicked from active use due to
-                         a detected fault or it has unacknowledged bad
-                         blocks
+			 a detected fault, or it has unacknowledged bad
+			 blocks
 	      in_sync  - device is a fully in-sync member of the array
 	      writemostly - device will only be subject to read
-		         requests if there are no other options.
+			 requests if there are no other options.
 			 This applies only to raid1 arrays.
 	      blocked  - device has failed, and the failure hasn't been
 			 acknowledged yet by the metadata handler.
@@ -374,6 +374,13 @@ Each directory contains:
 			 This includes spares that are in the process
 			 of being recovered to
 	      write_error - device has ever seen a write error.
+	      want_replacement - device is (mostly) working but probably
+			 should be replaced, either due to errors or
+			 due to user request.
+	      replacement - device is a replacement for another active
+			 device with same raid_disk.
+
+
 	This list may grow in future.
 	This can be written to.
 	Writing "faulty"  simulates a failure on the device.
@@ -386,6 +393,13 @@ Each directory contains:
 	Writing "in_sync" sets the in_sync flag.
 	Writing "write_error" sets writeerrorseen flag.
 	Writing "-write_error" clears writeerrorseen flag.
+	Writing "want_replacement" is allowed at any time except to a
+		replacement device or a spare.  It sets the flag.
+	Writing "-want_replacement" is allowed at any time.  It clears
+		the flag.
+	Writing "replacement" or "-replacement" is only allowed before
+		starting the array.  It sets or clears the flag.
+
 
 	This file responds to select/poll. Any change to 'faulty'
 	or 'blocked' causes an event.

Documentation/networking/00-INDEX

@@ -144,6 +144,8 @@ nfc.txt
 	- The Linux Near Field Communication (NFS) subsystem.
 olympic.txt
 	- IBM PCI Pit/Pit-Phy/Olympic Token Ring driver info.
+openvswitch.txt
+	- Open vSwitch developer documentation.
 operstates.txt
 	- Overview of network interface operational states.
 packet_mmap.txt

Documentation/networking/batman-adv.txt

@@ -200,15 +200,16 @@ abled  during run time. Following log_levels are defined:
 
 0 - All  debug  output  disabled
 1 - Enable messages related to routing / flooding / broadcasting
-2 - Enable route or tt entry added / changed / deleted
-3 - Enable all messages
+2 - Enable messages related to route added / changed / deleted
+4 - Enable messages related to translation table operations
+7 - Enable all messages
 
 The debug output can be changed at runtime  using  the  file
 /sys/class/net/bat0/mesh/log_level. e.g.
 
 # echo 2 > /sys/class/net/bat0/mesh/log_level
 
-will enable debug messages for when routes or TTs change.
+will enable debug messages for when routes change.
 
 
 BATCTL

Documentation/networking/bonding.txt

@@ -196,6 +196,23 @@ or, for backwards compatibility, the option value.  E.g.,
 
 	The parameters are as follows:
 
+active_slave
+
+	Specifies the new active slave for modes that support it
+	(active-backup, balance-alb and balance-tlb).  Possible values
+	are the name of any currently enslaved interface, or an empty
+	string.  If a name is given, the slave and its link must be up in order
+	to be selected as the new active slave.  If an empty string is
+	specified, the current active slave is cleared, and a new active
+	slave is selected automatically.
+
+	Note that this is only available through the sysfs interface. No module
+	parameter by this name exists.
+
+	The normal value of this option is the name of the currently
+	active slave, or the empty string if there is no active slave or
+	the current mode does not use an active slave.
+
 ad_select
 
 	Specifies the 802.3ad aggregation selection logic to use.  The

Documentation/networking/ieee802154.txt

@@ -78,3 +78,30 @@ in software. This is currently WIP.
 
 See header include/net/mac802154.h and several drivers in drivers/ieee802154/.
 
+6LoWPAN Linux implementation
+============================
+
+The IEEE 802.15.4 standard specifies an MTU of 128 bytes, yielding about 80
+octets of actual MAC payload once security is turned on, on a wireless link
+with a link throughput of 250 kbps or less.  The 6LoWPAN adaptation format
+[RFC4944] was specified to carry IPv6 datagrams over such constrained links,
+taking into account limited bandwidth, memory, or energy resources that are
+expected in applications such as wireless Sensor Networks.  [RFC4944] defines
+a Mesh Addressing header to support sub-IP forwarding, a Fragmentation header
+to support the IPv6 minimum MTU requirement [RFC2460], and stateless header
+compression for IPv6 datagrams (LOWPAN_HC1 and LOWPAN_HC2) to reduce the
+relatively large IPv6 and UDP headers down to (in the best case) several bytes.
+
+In Semptember 2011 the standard update was published - [RFC6282].
+It deprecates HC1 and HC2 compression and defines IPHC encoding format which is
+used in this Linux implementation.
+
+All the code related to 6lowpan you may find in files: net/ieee802154/6lowpan.*
+
+To setup 6lowpan interface you need (busybox release > 1.17.0):
+1. Add IEEE802.15.4 interface and initialize PANid;
+2. Add 6lowpan interface by command like:
+   # ip link add link wpan0 name lowpan0 type lowpan
+3. Set MAC (if needs):
+   # ip link set lowpan0 address de:ad:be:ef:ca:fe:ba:be
+4. Bring up 'lowpan0' interface

Documentation/networking/ifenslave.c

@@ -539,12 +539,14 @@ static int if_getconfig(char *ifname)
 		metric = 0;
 	} else
 		metric = ifr.ifr_metric;
+	printf("The result of SIOCGIFMETRIC is %d\n", metric);
 
 	strcpy(ifr.ifr_name, ifname);
 	if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
 		mtu = 0;
 	else
 		mtu = ifr.ifr_mtu;
+	printf("The result of SIOCGIFMTU is %d\n", mtu);
 
 	strcpy(ifr.ifr_name, ifname);
 	if (ioctl(skfd, SIOCGIFDSTADDR, &ifr) < 0) {

Documentation/networking/ip-sysctl.txt

@@ -31,6 +31,16 @@ neigh/default/gc_thresh3 - INTEGER
 	when using large numbers of interfaces and when communicating
 	with large numbers of directly-connected peers.
 
+neigh/default/unres_qlen_bytes - INTEGER
+	The maximum number of bytes which may be used by packets
+	queued for each	unresolved address by other network layers.
+	(added in linux 3.3)
+
+neigh/default/unres_qlen - INTEGER
+	The maximum number of packets which may be queued for each
+	unresolved address by other network layers.
+	(deprecated in linux 3.3) : use unres_qlen_bytes instead.
+
 mtu_expires - INTEGER
 	Time, in seconds, that cached PMTU information is kept.
 
@@ -165,6 +175,9 @@ tcp_congestion_control - STRING
 	connections. The algorithm "reno" is always available, but
 	additional choices may be available based on kernel configuration.
 	Default is set as part of kernel configuration.
+	For passive connections, the listener congestion control choice
+	is inherited.
+	[see setsockopt(listenfd, SOL_TCP, TCP_CONGESTION, "name" ...) ]
 
 tcp_cookie_size - INTEGER
 	Default size of TCP Cookie Transactions (TCPCT) option, that may be
@@ -282,11 +295,11 @@ tcp_max_ssthresh - INTEGER
 	Default: 0 (off)
 
 tcp_max_syn_backlog - INTEGER
-	Maximal number of remembered connection requests, which are
-	still did not receive an acknowledgment from connecting client.
-	Default value is 1024 for systems with more than 128Mb of memory,
-	and 128 for low memory machines. If server suffers of overload,
-	try to increase this number.
+	Maximal number of remembered connection requests, which have not
+	received an acknowledgment from connecting client.
+	The minimal value is 128 for low memory machines, and it will
+	increase in proportion to the memory of machine.
+	If server suffers from overload, try increasing this number.
 
 tcp_max_tw_buckets - INTEGER
 	Maximal number of timewait sockets held by system simultaneously.

Documentation/networking/openvswitch.txt

@@ -0,0 +1,195 @@
+Open vSwitch datapath developer documentation
+=============================================
+
+The Open vSwitch kernel module allows flexible userspace control over
+flow-level packet processing on selected network devices.  It can be
+used to implement a plain Ethernet switch, network device bonding,
+VLAN processing, network access control, flow-based network control,
+and so on.
+
+The kernel module implements multiple "datapaths" (analogous to
+bridges), each of which can have multiple "vports" (analogous to ports
+within a bridge).  Each datapath also has associated with it a "flow
+table" that userspace populates with "flows" that map from keys based
+on packet headers and metadata to sets of actions.  The most common
+action forwards the packet to another vport; other actions are also
+implemented.
+
+When a packet arrives on a vport, the kernel module processes it by
+extracting its flow key and looking it up in the flow table.  If there
+is a matching flow, it executes the associated actions.  If there is
+no match, it queues the packet to userspace for processing (as part of
+its processing, userspace will likely set up a flow to handle further
+packets of the same type entirely in-kernel).
+
+
+Flow key compatibility
+----------------------
+
+Network protocols evolve over time.  New protocols become important
+and existing protocols lose their prominence.  For the Open vSwitch
+kernel module to remain relevant, it must be possible for newer
+versions to parse additional protocols as part of the flow key.  It
+might even be desirable, someday, to drop support for parsing
+protocols that have become obsolete.  Therefore, the Netlink interface
+to Open vSwitch is designed to allow carefully written userspace
+applications to work with any version of the flow key, past or future.
+
+To support this forward and backward compatibility, whenever the
+kernel module passes a packet to userspace, it also passes along the
+flow key that it parsed from the packet.  Userspace then extracts its
+own notion of a flow key from the packet and compares it against the
+kernel-provided version:
+
+    - If userspace's notion of the flow key for the packet matches the
+      kernel's, then nothing special is necessary.
+
+    - If the kernel's flow key includes more fields than the userspace
+      version of the flow key, for example if the kernel decoded IPv6
+      headers but userspace stopped at the Ethernet type (because it
+      does not understand IPv6), then again nothing special is
+      necessary.  Userspace can still set up a flow in the usual way,
+      as long as it uses the kernel-provided flow key to do it.
+
+    - If the userspace flow key includes more fields than the
+      kernel's, for example if userspace decoded an IPv6 header but
+      the kernel stopped at the Ethernet type, then userspace can
+      forward the packet manually, without setting up a flow in the
+      kernel.  This case is bad for performance because every packet
+      that the kernel considers part of the flow must go to userspace,
+      but the forwarding behavior is correct.  (If userspace can
+      determine that the values of the extra fields would not affect
+      forwarding behavior, then it could set up a flow anyway.)
+
+How flow keys evolve over time is important to making this work, so
+the following sections go into detail.
+
+
+Flow key format
+---------------
+
+A flow key is passed over a Netlink socket as a sequence of Netlink
+attributes.  Some attributes represent packet metadata, defined as any
+information about a packet that cannot be extracted from the packet
+itself, e.g. the vport on which the packet was received.  Most
+attributes, however, are extracted from headers within the packet,
+e.g. source and destination addresses from Ethernet, IP, or TCP
+headers.
+
+The <linux/openvswitch.h> header file defines the exact format of the
+flow key attributes.  For informal explanatory purposes here, we write
+them as comma-separated strings, with parentheses indicating arguments
+and nesting.  For example, the following could represent a flow key
+corresponding to a TCP packet that arrived on vport 1:
+
+    in_port(1), eth(src=e0:91:f5:21:d0:b2, dst=00:02:e3:0f:80:a4),
+    eth_type(0x0800), ipv4(src=172.16.0.20, dst=172.18.0.52, proto=17, tos=0,
+    frag=no), tcp(src=49163, dst=80)
+
+Often we ellipsize arguments not important to the discussion, e.g.:
+
+    in_port(1), eth(...), eth_type(0x0800), ipv4(...), tcp(...)
+
+
+Basic rule for evolving flow keys
+---------------------------------
+
+Some care is needed to really maintain forward and backward
+compatibility for applications that follow the rules listed under
+"Flow key compatibility" above.
+
+The basic rule is obvious:
+
+    ------------------------------------------------------------------
+    New network protocol support must only supplement existing flow
+    key attributes.  It must not change the meaning of already defined
+    flow key attributes.
+    ------------------------------------------------------------------
+
+This rule does have less-obvious consequences so it is worth working
+through a few examples.  Suppose, for example, that the kernel module
+did not already implement VLAN parsing.  Instead, it just interpreted
+the 802.1Q TPID (0x8100) as the Ethertype then stopped parsing the
+packet.  The flow key for any packet with an 802.1Q header would look
+essentially like this, ignoring metadata:
+
+    eth(...), eth_type(0x8100)
+
+Naively, to add VLAN support, it makes sense to add a new "vlan" flow
+key attribute to contain the VLAN tag, then continue to decode the
+encapsulated headers beyond the VLAN tag using the existing field
+definitions.  With this change, an TCP packet in VLAN 10 would have a
+flow key much like this:
+
+    eth(...), vlan(vid=10, pcp=0), eth_type(0x0800), ip(proto=6, ...), tcp(...)
+
+But this change would negatively affect a userspace application that
+has not been updated to understand the new "vlan" flow key attribute.
+The application could, following the flow compatibility rules above,
+ignore the "vlan" attribute that it does not understand and therefore
+assume that the flow contained IP packets.  This is a bad assumption
+(the flow only contains IP packets if one parses and skips over the
+802.1Q header) and it could cause the application's behavior to change
+across kernel versions even though it follows the compatibility rules.
+
+The solution is to use a set of nested attributes.  This is, for
+example, why 802.1Q support uses nested attributes.  A TCP packet in
+VLAN 10 is actually expressed as:
+
+    eth(...), eth_type(0x8100), vlan(vid=10, pcp=0), encap(eth_type(0x0800),
+    ip(proto=6, ...), tcp(...)))
+
+Notice how the "eth_type", "ip", and "tcp" flow key attributes are
+nested inside the "encap" attribute.  Thus, an application that does
+not understand the "vlan" key will not see either of those attributes
+and therefore will not misinterpret them.  (Also, the outer eth_type
+is still 0x8100, not changed to 0x0800.)
+
+Handling malformed packets
+--------------------------
+
+Don't drop packets in the kernel for malformed protocol headers, bad
+checksums, etc.  This would prevent userspace from implementing a
+simple Ethernet switch that forwards every packet.
+
+Instead, in such a case, include an attribute with "empty" content.
+It doesn't matter if the empty content could be valid protocol values,
+as long as those values are rarely seen in practice, because userspace
+can always forward all packets with those values to userspace and
+handle them individually.
+
+For example, consider a packet that contains an IP header that
+indicates protocol 6 for TCP, but which is truncated just after the IP
+header, so that the TCP header is missing.  The flow key for this
+packet would include a tcp attribute with all-zero src and dst, like
+this:
+
+    eth(...), eth_type(0x0800), ip(proto=6, ...), tcp(src=0, dst=0)
+
+As another example, consider a packet with an Ethernet type of 0x8100,
+indicating that a VLAN TCI should follow, but which is truncated just
+after the Ethernet type.  The flow key for this packet would include
+an all-zero-bits vlan and an empty encap attribute, like this:
+
+    eth(...), eth_type(0x8100), vlan(0), encap()
+
+Unlike a TCP packet with source and destination ports 0, an
+all-zero-bits VLAN TCI is not that rare, so the CFI bit (aka
+VLAN_TAG_PRESENT inside the kernel) is ordinarily set in a vlan
+attribute expressly to allow this situation to be distinguished.
+Thus, the flow key in this second example unambiguously indicates a
+missing or malformed VLAN TCI.
+
+Other rules
+-----------
+
+The other rules for flow keys are much less subtle:
+
+    - Duplicate attributes are not allowed at a given nesting level.
+
+    - Ordering of attributes is not significant.
+
+    - When the kernel sends a given flow key to userspace, it always
+      composes it the same way.  This allows userspace to hash and
+      compare entire flow keys that it may not be able to fully
+      interpret.

Documentation/networking/packet_mmap.txt

@@ -155,7 +155,7 @@ As capture, each frame contains two parts:
 
  /* fill sockaddr_ll struct to prepare binding */
  my_addr.sll_family = AF_PACKET;
- my_addr.sll_protocol = ETH_P_ALL;
+ my_addr.sll_protocol = htons(ETH_P_ALL);
  my_addr.sll_ifindex =  s_ifr.ifr_ifindex;
 
  /* bind socket to eth0 */

Documentation/networking/scaling.txt

@@ -208,7 +208,7 @@ The counter in rps_dev_flow_table values records the length of the current
 CPU's backlog when a packet in this flow was last enqueued. Each backlog
 queue has a head counter that is incremented on dequeue. A tail counter
 is computed as head counter + queue length. In other words, the counter
-in rps_dev_flow_table[i] records the last element in flow i that has
+in rps_dev_flow[i] records the last element in flow i that has
 been enqueued onto the currently designated CPU for flow i (of course,
 entry i is actually selected by hash and multiple flows may hash to the
 same entry i).
@@ -224,7 +224,7 @@ following is true:
 
 - The current CPU's queue head counter >= the recorded tail counter
   value in rps_dev_flow[i]
-- The current CPU is unset (equal to NR_CPUS)
+- The current CPU is unset (equal to RPS_NO_CPU)
 - The current CPU is offline
 
 After this check, the packet is sent to the (possibly updated) current
@@ -235,7 +235,7 @@ CPU.
 
 ==== RFS Configuration
 
-RFS is only available if the kconfig symbol CONFIG_RFS is enabled (on
+RFS is only available if the kconfig symbol CONFIG_RPS is enabled (on
 by default for SMP). The functionality remains disabled until explicitly
 configured. The number of entries in the global flow table is set through:
 
@@ -258,7 +258,7 @@ For a single queue device, the rps_flow_cnt value for the single queue
 would normally be configured to the same value as rps_sock_flow_entries.
 For a multi-queue device, the rps_flow_cnt for each queue might be
 configured as rps_sock_flow_entries / N, where N is the number of
-queues. So for instance, if rps_flow_entries is set to 32768 and there
+queues. So for instance, if rps_sock_flow_entries is set to 32768 and there
 are 16 configured receive queues, rps_flow_cnt for each queue might be
 configured as 2048.
 

Documentation/networking/stmmac.txt

@@ -4,14 +4,16 @@ Copyright (C) 2007-2010  STMicroelectronics Ltd
 Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
 
 This is the driver for the MAC 10/100/1000 on-chip Ethernet controllers
-(Synopsys IP blocks); it has been fully tested on STLinux platforms.
+(Synopsys IP blocks).
 
 Currently this network device driver is for all STM embedded MAC/GMAC
-(i.e. 7xxx/5xxx SoCs) and it's known working on other platforms i.e. ARM SPEAr.
+(i.e. 7xxx/5xxx SoCs), SPEAr (arm), Loongson1B (mips) and XLINX XC2V3000
+FF1152AMT0221 D1215994A VIRTEX FPGA board.
 
-DWC Ether MAC 10/100/1000 Universal version 3.41a and DWC Ether MAC 10/100
-Universal version 4.0 have been used for developing the first code
-implementation.
+DWC Ether MAC 10/100/1000 Universal version 3.60a (and older) and DWC Ether MAC 10/100
+Universal version 4.0 have been used for developing this driver.
+
+This driver supports both the platform bus and PCI.
 
 Please, for more information also visit: www.stlinux.com
 
@@ -277,5 +279,5 @@ In fact, these can generate an huge amount of debug messages.
 
 6) TODO:
  o XGMAC is not supported.
- o Review the timer optimisation code to use an embedded device that will be
-  available in new chip generations.
+ o Add the EEE - Energy Efficient Ethernet
+ o Add the PTP - precision time protocol

Documentation/networking/team.txt

@@ -0,0 +1,2 @@
+Team devices are driven from userspace via libteam library which is here:
+	https://github.com/jpirko/libteam

Documentation/power/devices.txt

@@ -123,9 +123,12 @@ please refer directly to the source code for more information about it.
 Subsystem-Level Methods
 -----------------------
 The core methods to suspend and resume devices reside in struct dev_pm_ops
-pointed to by the pm member of struct bus_type, struct device_type and
-struct class.  They are mostly of interest to the people writing infrastructure
-for buses, like PCI or USB, or device type and device class drivers.
+pointed to by the ops member of struct dev_pm_domain, or by the pm member of
+struct bus_type, struct device_type and struct class.  They are mostly of
+interest to the people writing infrastructure for platforms and buses, like PCI
+or USB, or device type and device class drivers.  They also are relevant to the
+writers of device drivers whose subsystems (PM domains, device types, device
+classes and bus types) don't provide all power management methods.
 
 Bus drivers implement these methods as appropriate for the hardware and the
 drivers using it; PCI works differently from USB, and so on.  Not many people
@@ -139,41 +142,57 @@ sequencing in the driver model tree.
 
 /sys/devices/.../power/wakeup files
 -----------------------------------
-All devices in the driver model have two flags to control handling of wakeup
-events (hardware signals that can force the device and/or system out of a low
-power state).  These flags are initialized by bus or device driver code using
+All device objects in the driver model contain fields that control the handling
+of system wakeup events (hardware signals that can force the system out of a
+sleep state).  These fields are initialized by bus or device driver code using
 device_set_wakeup_capable() and device_set_wakeup_enable(), defined in
 include/linux/pm_wakeup.h.
 
-The "can_wakeup" flag just records whether the device (and its driver) can
+The "power.can_wakeup" flag just records whether the device (and its driver) can
 physically support wakeup events.  The device_set_wakeup_capable() routine
-affects this flag.  The "should_wakeup" flag controls whether the device should
-try to use its wakeup mechanism.  device_set_wakeup_enable() affects this flag;
-for the most part drivers should not change its value.  The initial value of
-should_wakeup is supposed to be false for the majority of devices; the major
-exceptions are power buttons, keyboards, and Ethernet adapters whose WoL
-(wake-on-LAN) feature has been set up with ethtool.  It should also default
-to true for devices that don't generate wakeup requests on their own but merely
-forward wakeup requests from one bus to another (like PCI bridges).
+affects this flag.  The "power.wakeup" field is a pointer to an object of type
+struct wakeup_source used for controlling whether or not the device should use
+its system wakeup mechanism and for notifying the PM core of system wakeup
+events signaled by the device.  This object is only present for wakeup-capable
+devices (i.e. devices whose "can_wakeup" flags are set) and is created (or
+removed) by device_set_wakeup_capable().
 
 Whether or not a device is capable of issuing wakeup events is a hardware
 matter, and the kernel is responsible for keeping track of it.  By contrast,
 whether or not a wakeup-capable device should issue wakeup events is a policy
 decision, and it is managed by user space through a sysfs attribute: the
-power/wakeup file.  User space can write the strings "enabled" or "disabled" to
-set or clear the "should_wakeup" flag, respectively.  This file is only present
-for wakeup-capable devices (i.e. devices whose "can_wakeup" flags are set)
-and is created (or removed) by device_set_wakeup_capable().  Reads from the
-file will return the corresponding string.
-
-The device_may_wakeup() routine returns true only if both flags are set.
+"power/wakeup" file.  User space can write the strings "enabled" or "disabled"
+to it to indicate whether or not, respectively, the device is supposed to signal
+system wakeup.  This file is only present if the "power.wakeup" object exists
+for the given device and is created (or removed) along with that object, by
+device_set_wakeup_capable().  Reads from the file will return the corresponding
+string.
+
+The "power/wakeup" file is supposed to contain the "disabled" string initially
+for the majority of devices; the major exceptions are power buttons, keyboards,
+and Ethernet adapters whose WoL (wake-on-LAN) feature has been set up with
+ethtool.  It should also default to "enabled" for devices that don't generate
+wakeup requests on their own but merely forward wakeup requests from one bus to
+another (like PCI Express ports).
+
+The device_may_wakeup() routine returns true only if the "power.wakeup" object
+exists and the corresponding "power/wakeup" file contains the string "enabled".
 This information is used by subsystems, like the PCI bus type code, to see
 whether or not to enable the devices' wakeup mechanisms.  If device wakeup
 mechanisms are enabled or disabled directly by drivers, they also should use
 device_may_wakeup() to decide what to do during a system sleep transition.
-However for runtime power management, wakeup events should be enabled whenever
-the device and driver both support them, regardless of the should_wakeup flag.
-
+Device drivers, however, are not supposed to call device_set_wakeup_enable()
+directly in any case.
+
+It ought to be noted that system wakeup is conceptually different from "remote
+wakeup" used by runtime power management, although it may be supported by the
+same physical mechanism.  Remote wakeup is a feature allowing devices in
+low-power states to trigger specific interrupts to signal conditions in which
+they should be put into the full-power state.  Those interrupts may or may not
+be used to signal system wakeup events, depending on the hardware design.  On
+some systems it is impossible to trigger them from system sleep states.  In any
+case, remote wakeup should always be enabled for runtime power management for
+all devices and drivers that support it.
 
 /sys/devices/.../power/control files
 ------------------------------------
@@ -249,23 +268,37 @@ for every device before the next phase begins.  Not all busses or classes
 support all these callbacks and not all drivers use all the callbacks.  The
 various phases always run after tasks have been frozen and before they are
 unfrozen.  Furthermore, the *_noirq phases run at a time when IRQ handlers have
-been disabled (except for those marked with the IRQ_WAKEUP flag).
+been disabled (except for those marked with the IRQF_NO_SUSPEND flag).
+
+All phases use PM domain, bus, type, class or driver callbacks (that is, methods
+defined in dev->pm_domain->ops, dev->bus->pm, dev->type->pm, dev->class->pm or
+dev->driver->pm).  These callbacks are regarded by the PM core as mutually
+exclusive.  Moreover, PM domain callbacks always take precedence over all of the
+other callbacks and, for example, type callbacks take precedence over bus, class
+and driver callbacks.  To be precise, the following rules are used to determine
+which callback to execute in the given phase:
+
+    1.	If dev->pm_domain is present, the PM core will choose the callback
+	included in dev->pm_domain->ops for execution
+
+    2.	Otherwise, if both dev->type and dev->type->pm are present, the callback
+	included in dev->type->pm will be chosen for execution.
+
+    3.	Otherwise, if both dev->class and dev->class->pm are present, the
+	callback included in dev->class->pm will be chosen for execution.
+
+    4.	Otherwise, if both dev->bus and dev->bus->pm are present, the callback
+	included in dev->bus->pm will be chosen for execution.
+
+This allows PM domains and device types to override callbacks provided by bus
+types or device classes if necessary.
 
-All phases use bus, type, or class callbacks (that is, methods defined in
-dev->bus->pm, dev->type->pm, or dev->class->pm).  These callbacks are mutually
-exclusive, so if the device type provides a struct dev_pm_ops object pointed to
-by its pm field (i.e. both dev->type and dev->type->pm are defined), the
-callbacks included in that object (i.e. dev->type->pm) will be used.  Otherwise,
-if the class provides a struct dev_pm_ops object pointed to by its pm field
-(i.e. both dev->class and dev->class->pm are defined), the PM core will use the
-callbacks from that object (i.e. dev->class->pm).  Finally, if the pm fields of
-both the device type and class objects are NULL (or those objects do not exist),
-the callbacks provided by the bus (that is, the callbacks from dev->bus->pm)
-will be used (this allows device types to override callbacks provided by bus
-types or classes if necessary).
+The PM domain, type, class and bus callbacks may in turn invoke device- or
+driver-specific methods stored in dev->driver->pm, but they don't have to do
+that.
 
-These callbacks may in turn invoke device- or driver-specific methods stored in
-dev->driver->pm, but they don't have to.
+If the subsystem callback chosen for execution is not present, the PM core will
+execute the corresponding method from dev->driver->pm instead if there is one.
 
 
 Entering System Suspend
@@ -283,9 +316,8 @@ When the system goes into the standby or memory sleep state, the phases are:
 
 	After the prepare callback method returns, no new children may be
 	registered below the device.  The method may also prepare the device or
-	driver in some way for the upcoming system power transition (for
-	example, by allocating additional memory required for this purpose), but
-	it should not put the device into a low-power state.
+	driver in some way for the upcoming system power transition, but it
+	should not put the device into a low-power state.
 
     2.	The suspend methods should quiesce the device to stop it from performing
 	I/O.  They also may save the device registers and put it into the

Documentation/power/freezing-of-tasks.txt

@@ -21,7 +21,7 @@ freeze_processes() (defined in kernel/power/process.c) is called.  It executes
 try_to_freeze_tasks() that sets TIF_FREEZE for all of the freezable tasks and
 either wakes them up, if they are kernel threads, or sends fake signals to them,
 if they are user space processes.  A task that has TIF_FREEZE set, should react
-to it by calling the function called refrigerator() (defined in
+to it by calling the function called __refrigerator() (defined in
 kernel/freezer.c), which sets the task's PF_FROZEN flag, changes its state
 to TASK_UNINTERRUPTIBLE and makes it loop until PF_FROZEN is cleared for it.
 Then, we say that the task is 'frozen' and therefore the set of functions
@@ -29,10 +29,10 @@ handling this mechanism is referred to as 'the freezer' (these functions are
 defined in kernel/power/process.c, kernel/freezer.c & include/linux/freezer.h).
 User space processes are generally frozen before kernel threads.
 
-It is not recommended to call refrigerator() directly.  Instead, it is
-recommended to use the try_to_freeze() function (defined in
-include/linux/freezer.h), that checks the task's TIF_FREEZE flag and makes the
-task enter refrigerator() if the flag is set.
+__refrigerator() must not be called directly.  Instead, use the
+try_to_freeze() function (defined in include/linux/freezer.h), that checks
+the task's TIF_FREEZE flag and makes the task enter __refrigerator() if the
+flag is set.
 
 For user space processes try_to_freeze() is called automatically from the
 signal-handling code, but the freezable kernel threads need to call it
@@ -61,13 +61,13 @@ wait_event_freezable() and wait_event_freezable_timeout() macros.
 After the system memory state has been restored from a hibernation image and
 devices have been reinitialized, the function thaw_processes() is called in
 order to clear the PF_FROZEN flag for each frozen task.  Then, the tasks that
-have been frozen leave refrigerator() and continue running.
+have been frozen leave __refrigerator() and continue running.
 
 III. Which kernel threads are freezable?
 
 Kernel threads are not freezable by default.  However, a kernel thread may clear
 PF_NOFREEZE for itself by calling set_freezable() (the resetting of PF_NOFREEZE
-directly is strongly discouraged).  From this point it is regarded as freezable
+directly is not allowed).  From this point it is regarded as freezable
 and must call try_to_freeze() in a suitable place.
 
 IV. Why do we do that?
@@ -176,3 +176,28 @@ tasks, since it generally exists anyway.
 A driver must have all firmwares it may need in RAM before suspend() is called.
 If keeping them is not practical, for example due to their size, they must be
 requested early enough using the suspend notifier API described in notifiers.txt.
+
+VI. Are there any precautions to be taken to prevent freezing failures?
+
+Yes, there are.
+
+First of all, grabbing the 'pm_mutex' lock to mutually exclude a piece of code
+from system-wide sleep such as suspend/hibernation is not encouraged.
+If possible, that piece of code must instead hook onto the suspend/hibernation
+notifiers to achieve mutual exclusion. Look at the CPU-Hotplug code
+(kernel/cpu.c) for an example.
+
+However, if that is not feasible, and grabbing 'pm_mutex' is deemed necessary,
+it is strongly discouraged to directly call mutex_[un]lock(&pm_mutex) since
+that could lead to freezing failures, because if the suspend/hibernate code
+successfully acquired the 'pm_mutex' lock, and hence that other entity failed
+to acquire the lock, then that task would get blocked in TASK_UNINTERRUPTIBLE
+state. As a consequence, the freezer would not be able to freeze that task,
+leading to freezing failure.
+
+However, the [un]lock_system_sleep() APIs are safe to use in this scenario,
+since they ask the freezer to skip freezing this task, since it is anyway
+"frozen enough" as it is blocked on 'pm_mutex', which will be released
+only after the entire suspend/hibernation sequence is complete.
+So, to summarize, use [un]lock_system_sleep() instead of directly using
+mutex_[un]lock(&pm_mutex). That would prevent freezing failures.

Documentation/power/runtime_pm.txt

@@ -44,98 +44,112 @@ struct dev_pm_ops {
 };
 
 The ->runtime_suspend(), ->runtime_resume() and ->runtime_idle() callbacks
-are executed by the PM core for either the power domain, or the device type
-(if the device power domain's struct dev_pm_ops does not exist), or the class
-(if the device power domain's and type's struct dev_pm_ops object does not
-exist), or the bus type (if the device power domain's, type's and class'
-struct dev_pm_ops objects do not exist) of the given device, so the priority
-order of callbacks from high to low is that power domain callbacks, device
-type callbacks, class callbacks and bus type callbacks, and the high priority
-one will take precedence over low priority one. The bus type, device type and
-class callbacks are referred to as subsystem-level callbacks in what follows,
-and generally speaking, the power domain callbacks are used for representing
-power domains within a SoC.
+are executed by the PM core for the device's subsystem that may be either of
+the following:
+
+  1. PM domain of the device, if the device's PM domain object, dev->pm_domain,
+     is present.
+
+  2. Device type of the device, if both dev->type and dev->type->pm are present.
+
+  3. Device class of the device, if both dev->class and dev->class->pm are
+     present.
+
+  4. Bus type of the device, if both dev->bus and dev->bus->pm are present.
+
+If the subsystem chosen by applying the above rules doesn't provide the relevant
+callback, the PM core will invoke the corresponding driver callback stored in
+dev->driver->pm directly (if present).
+
+The PM core always checks which callback to use in the order given above, so the
+priority order of callbacks from high to low is: PM domain, device type, class
+and bus type.  Moreover, the high-priority one will always take precedence over
+a low-priority one.  The PM domain, bus type, device type and class callbacks
+are referred to as subsystem-level callbacks in what follows.
 
 By default, the callbacks are always invoked in process context with interrupts
-enabled.  However, subsystems can use the pm_runtime_irq_safe() helper function
-to tell the PM core that a device's ->runtime_suspend() and ->runtime_resume()
-callbacks should be invoked in atomic context with interrupts disabled.
-This implies that these callback routines must not block or sleep, but it also
-means that the synchronous helper functions listed at the end of Section 4 can
-be used within an interrupt handler or in an atomic context.
-
-The subsystem-level suspend callback is _entirely_ _responsible_ for handling
-the suspend of the device as appropriate, which may, but need not include
-executing the device driver's own ->runtime_suspend() callback (from the
+enabled.  However, the pm_runtime_irq_safe() helper function can be used to tell
+the PM core that it is safe to run the ->runtime_suspend(), ->runtime_resume()
+and ->runtime_idle() callbacks for the given device in atomic context with
+interrupts disabled.  This implies that the callback routines in question must
+not block or sleep, but it also means that the synchronous helper functions
+listed at the end of Section 4 may be used for that device within an interrupt
+handler or generally in an atomic context.
+
+The subsystem-level suspend callback, if present, is _entirely_ _responsible_
+for handling the suspend of the device as appropriate, which may, but need not
+include executing the device driver's own ->runtime_suspend() callback (from the
 PM core's point of view it is not necessary to implement a ->runtime_suspend()
 callback in a device driver as long as the subsystem-level suspend callback
 knows what to do to handle the device).
 
-  * Once the subsystem-level suspend callback has completed successfully
-    for given device, the PM core regards the device as suspended, which need
-    not mean that the device has been put into a low power state.  It is
-    supposed to mean, however, that the device will not process data and will
-    not communicate with the CPU(s) and RAM until the subsystem-level resume
-    callback is executed for it.  The runtime PM status of a device after
-    successful execution of the subsystem-level suspend callback is 'suspended'.
-
-  * If the subsystem-level suspend callback returns -EBUSY or -EAGAIN,
-    the device's runtime PM status is 'active', which means that the device
-    _must_ be fully operational afterwards.
-
-  * If the subsystem-level suspend callback returns an error code different
-    from -EBUSY or -EAGAIN, the PM core regards this as a fatal error and will
-    refuse to run the helper functions described in Section 4 for the device,
-    until the status of it is directly set either to 'active', or to 'suspended'
-    (the PM core provides special helper functions for this purpose).
-
-In particular, if the driver requires remote wake-up capability (i.e. hardware
+  * Once the subsystem-level suspend callback (or the driver suspend callback,
+    if invoked directly) has completed successfully for the given device, the PM
+    core regards the device as suspended, which need not mean that it has been
+    put into a low power state.  It is supposed to mean, however, that the
+    device will not process data and will not communicate with the CPU(s) and
+    RAM until the appropriate resume callback is executed for it.  The runtime
+    PM status of a device after successful execution of the suspend callback is
+    'suspended'.
+
+  * If the suspend callback returns -EBUSY or -EAGAIN, the device's runtime PM
+    status remains 'active', which means that the device _must_ be fully
+    operational afterwards.
+
+  * If the suspend callback returns an error code different from -EBUSY and
+    -EAGAIN, the PM core regards this as a fatal error and will refuse to run
+    the helper functions described in Section 4 for the device until its status
+    is directly set to  either'active', or 'suspended' (the PM core provides
+    special helper functions for this purpose).
+
+In particular, if the driver requires remote wakeup capability (i.e. hardware
 mechanism allowing the device to request a change of its power state, such as
 PCI PME) for proper functioning and device_run_wake() returns 'false' for the
 device, then ->runtime_suspend() should return -EBUSY.  On the other hand, if
-device_run_wake() returns 'true' for the device and the device is put into a low
-power state during the execution of the subsystem-level suspend callback, it is
-expected that remote wake-up will be enabled for the device.  Generally, remote
-wake-up should be enabled for all input devices put into a low power state at
-run time.
-
-The subsystem-level resume callback is _entirely_ _responsible_ for handling the
-resume of the device as appropriate, which may, but need not include executing
-the device driver's own ->runtime_resume() callback (from the PM core's point of
-view it is not necessary to implement a ->runtime_resume() callback in a device
-driver as long as the subsystem-level resume callback knows what to do to handle
-the device).
-
-  * Once the subsystem-level resume callback has completed successfully, the PM
-    core regards the device as fully operational, which means that the device
-    _must_ be able to complete I/O operations as needed.  The runtime PM status
-    of the device is then 'active'.
-
-  * If the subsystem-level resume callback returns an error code, the PM core
-    regards this as a fatal error and will refuse to run the helper functions
-    described in Section 4 for the device, until its status is directly set
-    either to 'active' or to 'suspended' (the PM core provides special helper
-    functions for this purpose).
-
-The subsystem-level idle callback is executed by the PM core whenever the device
-appears to be idle, which is indicated to the PM core by two counters, the
-device's usage counter and the counter of 'active' children of the device.
+device_run_wake() returns 'true' for the device and the device is put into a
+low-power state during the execution of the suspend callback, it is expected
+that remote wakeup will be enabled for the device.  Generally, remote wakeup
+should be enabled for all input devices put into low-power states at run time.
+
+The subsystem-level resume callback, if present, is _entirely_ _responsible_ for
+handling the resume of the device as appropriate, which may, but need not
+include executing the device driver's own ->runtime_resume() callback (from the
+PM core's point of view it is not necessary to implement a ->runtime_resume()
+callback in a device driver as long as the subsystem-level resume callback knows
+what to do to handle the device).
+
+  * Once the subsystem-level resume callback (or the driver resume callback, if
+    invoked directly) has completed successfully, the PM core regards the device
+    as fully operational, which means that the device _must_ be able to complete
+    I/O operations as needed.  The runtime PM status of the device is then
+    'active'.
+
+  * If the resume callback returns an error code, the PM core regards this as a
+    fatal error and will refuse to run the helper functions described in Section
+    4 for the device, until its status is directly set to either 'active', or
+    'suspended' (by means of special helper functions provided by the PM core
+    for this purpose).
+
+The idle callback (a subsystem-level one, if present, or the driver one) is
+executed by the PM core whenever the device appears to be idle, which is
+indicated to the PM core by two counters, the device's usage counter and the
+counter of 'active' children of the device.
 
   * If any of these counters is decreased using a helper function provided by
     the PM core and it turns out to be equal to zero, the other counter is
     checked.  If that counter also is equal to zero, the PM core executes the
-    subsystem-level idle callback with the device as an argument.
+    idle callback with the device as its argument.
 
-The action performed by a subsystem-level idle callback is totally dependent on
-the subsystem in question, but the expected and recommended action is to check
+The action performed by the idle callback is totally dependent on the subsystem
+(or driver) in question, but the expected and recommended action is to check
 if the device can be suspended (i.e. if all of the conditions necessary for
 suspending the device are satisfied) and to queue up a suspend request for the
 device in that case.  The value returned by this callback is ignored by the PM
 core.
 
 The helper functions provided by the PM core, described in Section 4, guarantee
-that the following constraints are met with respect to the bus type's runtime
-PM callbacks:
+that the following constraints are met with respect to runtime PM callbacks for
+one device:
 
 (1) The callbacks are mutually exclusive (e.g. it is forbidden to execute
     ->runtime_suspend() in parallel with ->runtime_resume() or with another

Documentation/scsi/53c700.txt

@@ -16,32 +16,13 @@ fill in to get the driver working.
 Compile Time Flags
 ==================
 
-The driver may be either io mapped or memory mapped.  This is
-selectable by configuration flags:
-
-CONFIG_53C700_MEM_MAPPED
-
-define if the driver is memory mapped.
-
-CONFIG_53C700_IO_MAPPED
-
-define if the driver is to be io mapped.
-
-One or other of the above flags *must* be defined.
-
-Other flags are:
+A compile time flag is:
 
 CONFIG_53C700_LE_ON_BE
 
 define if the chipset must be supported in little endian mode on a big
 endian architecture (used for the 700 on parisc).
 
-CONFIG_53C700_USE_CONSISTENT
-
-allocate consistent memory (should only be used if your architecture
-has a mixture of consistent and inconsistent memory).  Fully
-consistent or fully inconsistent architectures should not define this.
-
 
 Using the Chip Core Driver
 ==========================

Documentation/sound/alsa/soc/machine.txt

@@ -50,8 +50,7 @@ Machine DAI Configuration
 The machine DAI configuration glues all the codec and CPU DAIs together. It can
 also be used to set up the DAI system clock and for any machine related DAI
 initialisation e.g. the machine audio map can be connected to the codec audio
-map, unconnected codec pins can be set as such. Please see corgi.c, spitz.c
-for examples.
+map, unconnected codec pins can be set as such.
 
 struct snd_soc_dai_link is used to set up each DAI in your machine. e.g.
 
@@ -83,8 +82,7 @@ Machine Power Map
 The machine driver can optionally extend the codec power map and to become an
 audio power map of the audio subsystem. This allows for automatic power up/down
 of speaker/HP amplifiers, etc. Codec pins can be connected to the machines jack
-sockets in the machine init function. See soc/pxa/spitz.c and dapm.txt for
-details.
+sockets in the machine init function.
 
 
 Machine Controls

Documentation/trace/events.txt

@@ -191,8 +191,6 @@ And for string fields they are:
 
 Currently, only exact string matches are supported.
 
-Currently, the maximum number of predicates in a filter is 16.
-
 5.2 Setting filters
 -------------------
 

Documentation/usb/linux-cdc-acm.inf

@@ -90,10 +90,10 @@ ServiceBinary=%12%\USBSER.sys
 [SourceDisksFiles]
 [SourceDisksNames]
 [DeviceList]
-%DESCRIPTION%=DriverInstall, USB\VID_0525&PID_A4A7, USB\VID_1D6B&PID_0104&MI_02
+%DESCRIPTION%=DriverInstall, USB\VID_0525&PID_A4A7, USB\VID_1D6B&PID_0104&MI_02, USB\VID_1D6B&PID_0106&MI_00
 
 [DeviceList.NTamd64]
-%DESCRIPTION%=DriverInstall, USB\VID_0525&PID_A4A7, USB\VID_1D6B&PID_0104&MI_02
+%DESCRIPTION%=DriverInstall, USB\VID_0525&PID_A4A7, USB\VID_1D6B&PID_0104&MI_02, USB\VID_1D6B&PID_0106&MI_00
 
 
 ;------------------------------------------------------------------------------

Documentation/vgaarbiter.txt

@@ -177,7 +177,7 @@ II. Credits
 
 Benjamin Herrenschmidt (IBM?) started this work when he discussed such design
 with the Xorg community in 2005 [1, 2]. In the end of 2007, Paulo Zanoni and
-Tiago Vignatti (both of C3SL/Federal University of Paraná) proceeded his work
+Tiago Vignatti (both of C3SL/Federal University of Paraná) proceeded his work
 enhancing the kernel code to adapt as a kernel module and also did the
 implementation of the user space side [3]. Now (2009) Tiago Vignatti and Dave
 Airlie finally put this work in shape and queued to Jesse Barnes' PCI tree.

Documentation/virtual/kvm/api.txt

@@ -1100,6 +1100,15 @@ emulate them efficiently. The fields in each entry are defined as follows:
    eax, ebx, ecx, edx: the values returned by the cpuid instruction for
          this function/index combination
 
+The TSC deadline timer feature (CPUID leaf 1, ecx[24]) is always returned
+as false, since the feature depends on KVM_CREATE_IRQCHIP for local APIC
+support.  Instead it is reported via
+
+  ioctl(KVM_CHECK_EXTENSION, KVM_CAP_TSC_DEADLINE_TIMER)
+
+if that returns true and you use KVM_CREATE_IRQCHIP, or if you emulate the
+feature in userspace, then you can enable the feature for KVM_SET_CPUID2.
+
 4.47 KVM_PPC_GET_PVINFO
 
 Capability: KVM_CAP_PPC_GET_PVINFO
@@ -1151,6 +1160,13 @@ following flags are specified:
 /* Depends on KVM_CAP_IOMMU */
 #define KVM_DEV_ASSIGN_ENABLE_IOMMU	(1 << 0)
 
+The KVM_DEV_ASSIGN_ENABLE_IOMMU flag is a mandatory option to ensure
+isolation of the device.  Usages not specifying this flag are deprecated.
+
+Only PCI header type 0 devices with PCI BAR resources are supported by
+device assignment.  The user requesting this ioctl must have read/write
+access to the PCI sysfs resource files associated with the device.
+
 4.49 KVM_DEASSIGN_PCI_DEVICE
 
 Capability: KVM_CAP_DEVICE_DEASSIGNMENT

MAINTAINERS

@@ -511,8 +511,8 @@ M:	Joerg Roedel <joerg.roedel@amd.com>
 L:	iommu@lists.linux-foundation.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu.git
 S:	Supported
-F:	arch/x86/kernel/amd_iommu*.c
-F:	arch/x86/include/asm/amd_iommu*.h
+F:	drivers/iommu/amd_iommu*.[ch]
+F:	include/linux/amd-iommu.h
 
 AMD MICROCODE UPDATE SUPPORT
 M:	Andreas Herrmann <andreas.herrmann3@amd.com>
@@ -789,6 +789,7 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 T:	git git://git.pengutronix.de/git/imx/linux-2.6.git
 F:	arch/arm/mach-mx*/
+F:	arch/arm/mach-imx/
 F:	arch/arm/plat-mxc/
 
 ARM/FREESCALE IMX51
@@ -804,6 +805,13 @@ S:	Maintained
 T:	git git://git.linaro.org/people/shawnguo/linux-2.6.git
 F:	arch/arm/mach-imx/*imx6*
 
+ARM/FREESCALE MXS ARM ARCHITECTURE
+M:	Shawn Guo <shawn.guo@linaro.org>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+T:	git git://git.linaro.org/people/shawnguo/linux-2.6.git
+F:	arch/arm/mach-mxs/
+
 ARM/GLOMATION GESBC9312SX MACHINE SUPPORT
 M:	Lennert Buytenhek <kernel@wantstofly.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1046,35 +1054,18 @@ ARM/SAMSUNG ARM ARCHITECTURES
 M:	Ben Dooks <ben-linux@fluff.org>
 M:	Kukjin Kim <kgene.kim@samsung.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L:	linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
 W:	http://www.fluff.org/ben/linux/
 S:	Maintained
 F:	arch/arm/plat-samsung/
 F:	arch/arm/plat-s3c24xx/
 F:	arch/arm/plat-s5p/
+F:	arch/arm/mach-s3c24*/
+F:	arch/arm/mach-s3c64xx/
 F:	drivers/*/*s3c2410*
 F:	drivers/*/*/*s3c2410*
-
-ARM/S3C2410 ARM ARCHITECTURE
-M:	Ben Dooks <ben-linux@fluff.org>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W:	http://www.fluff.org/ben/linux/
-S:	Maintained
-F:	arch/arm/mach-s3c2410/
-
-ARM/S3C244x ARM ARCHITECTURE
-M:	Ben Dooks <ben-linux@fluff.org>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W:	http://www.fluff.org/ben/linux/
-S:	Maintained
-F:	arch/arm/mach-s3c2440/
-F:	arch/arm/mach-s3c2443/
-
-ARM/S3C64xx ARM ARCHITECTURE
-M:	Ben Dooks <ben-linux@fluff.org>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W:	http://www.fluff.org/ben/linux/
-S:	Maintained
-F:	arch/arm/mach-s3c64xx/
+F:	drivers/spi/spi-s3c*
+F:	sound/soc/samsung/*
 
 ARM/S5P EXYNOS ARM ARCHITECTURES
 M:	Kukjin Kim <kgene.kim@samsung.com>
@@ -1133,13 +1124,6 @@ S:	Supported
 F:	arch/arm/mach-shmobile/
 F:	drivers/sh/
 
-ARM/TELECHIPS ARM ARCHITECTURE
-M:	"Hans J. Koch" <hjk@hansjkoch.de>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:	Maintained
-F:	arch/arm/plat-tcc/
-F:	arch/arm/mach-tcc8k/
-
 ARM/TECHNOLOGIC SYSTEMS TS7250 MACHINE SUPPORT
 M:	Lennert Buytenhek <kernel@wantstofly.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1707,11 +1691,9 @@ F:	arch/x86/include/asm/tce.h
 
 CAN NETWORK LAYER
 M:	Oliver Hartkopp <socketcan@hartkopp.net>
-M:	Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
-M:	Urs Thuermann <urs.thuermann@volkswagen.de>
 L:	linux-can@vger.kernel.org
-L:	netdev@vger.kernel.org
-W:	http://developer.berlios.de/projects/socketcan/
+W:	http://gitorious.org/linux-can
+T:	git git://gitorious.org/linux-can/linux-can-next.git
 S:	Maintained
 F:	net/can/
 F:	include/linux/can.h
@@ -1722,9 +1704,10 @@ F:	include/linux/can/gw.h
 
 CAN NETWORK DRIVERS
 M:	Wolfgang Grandegger <wg@grandegger.com>
+M:	Marc Kleine-Budde <mkl@pengutronix.de>
 L:	linux-can@vger.kernel.org
-L:	netdev@vger.kernel.org
-W:	http://developer.berlios.de/projects/socketcan/
+W:	http://gitorious.org/linux-can
+T:	git git://gitorious.org/linux-can/linux-can-next.git
 S:	Maintained
 F:	drivers/net/can/
 F:	include/linux/can/dev.h
@@ -2709,7 +2692,7 @@ FIREWIRE SUBSYSTEM
 M:	Stefan Richter <stefanr@s5r6.in-berlin.de>
 L:	linux1394-devel@lists.sourceforge.net
 W:	http://ieee1394.wiki.kernel.org/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394.git
 S:	Maintained
 F:	drivers/firewire/
 F:	include/linux/firewire*.h
@@ -2929,6 +2912,7 @@ F:	include/linux/gigaset_dev.h
 
 GPIO SUBSYSTEM
 M:	Grant Likely <grant.likely@secretlab.ca>
+M:	Linus Walleij <linus.walleij@stericsson.com>
 S:	Maintained
 T:	git git://git.secretlab.ca/git/linux-2.6.git
 F:	Documentation/gpio.txt
@@ -3110,6 +3094,7 @@ F:	include/linux/hid*
 
 HIGH-RESOLUTION TIMERS, CLOCKEVENTS, DYNTICKS
 M:	Thomas Gleixner <tglx@linutronix.de>
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
 S:	Maintained
 F:	Documentation/timers/
 F:	kernel/hrtimer.c
@@ -3197,6 +3182,16 @@ M:	William Irwin <wli@holomorphy.com>
 S:	Maintained
 F:	fs/hugetlbfs/
 
+Hyper-V CORE AND DRIVERS
+M:	K. Y. Srinivasan <kys@microsoft.com>
+M:	Haiyang Zhang <haiyangz@microsoft.com>
+L:	devel@linuxdriverproject.org
+S:	Maintained
+F:	drivers/hv/
+F:	drivers/hid/hid-hyperv.c
+F:	drivers/net/hyperv/
+F:	drivers/staging/hv/
+
 I2C/SMBUS STUB DRIVER
 M:	"Mark M. Hoffman" <mhoffman@lightlink.com>
 L:	linux-i2c@vger.kernel.org
@@ -3592,8 +3587,7 @@ F:	net/netfilter/ipvs/
 IPWIRELESS DRIVER
 M:	Jiri Kosina <jkosina@suse.cz>
 M:	David Sterba <dsterba@suse.cz>
-S:	Maintained
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/ipwireless_cs.git
+S:	Odd Fixes
 F:	drivers/tty/ipwireless/
 
 IPX NETWORK LAYER
@@ -3619,7 +3613,7 @@ F:	net/irda/
 IRQ SUBSYSTEM
 M:	Thomas Gleixner <tglx@linutronix.de>
 S:	Maintained
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git irq/core
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
 F:	kernel/irq/
 
 ISAPNP
@@ -4020,7 +4014,7 @@ M:	Josh Boyer <jwboyer@gmail.com>
 M:	Matt Porter <mporter@kernel.crashing.org>
 W:	http://www.penguinppc.org/
 L:	linuxppc-dev@lists.ozlabs.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx.git
+T:	git git://git.infradead.org/users/jwboyer/powerpc-4xx.git
 S:	Maintained
 F:	arch/powerpc/platforms/40x/
 F:	arch/powerpc/platforms/44x/
@@ -4107,7 +4101,7 @@ F:	drivers/hwmon/lm90.c
 LOCKDEP AND LOCKSTAT
 M:	Peter Zijlstra <peterz@infradead.org>
 M:	Ingo Molnar <mingo@redhat.com>
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core/locking
 S:	Maintained
 F:	Documentation/lockdep*.txt
 F:	Documentation/lockstat.txt
@@ -4289,7 +4283,9 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 S:	Maintained
 F:	Documentation/dvb/
 F:	Documentation/video4linux/
+F:	Documentation/DocBook/media/
 F:	drivers/media/
+F:	drivers/staging/media/
 F:	include/media/
 F:	include/linux/dvb/
 F:	include/linux/videodev*.h
@@ -4311,8 +4307,9 @@ F:	include/linux/mm.h
 F:	mm/
 
 MEMORY RESOURCE CONTROLLER
+M:	Johannes Weiner <hannes@cmpxchg.org>
+M:	Michal Hocko <mhocko@suse.cz>
 M:	Balbir Singh <bsingharora@gmail.com>
-M:	Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
 M:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
 L:	cgroups@vger.kernel.org
 L:	linux-mm@kvack.org
@@ -4860,6 +4857,14 @@ S:	Maintained
 T:	git git://openrisc.net/~jonas/linux
 F:	arch/openrisc
 
+OPENVSWITCH
+M:	Jesse Gross <jesse@nicira.com>
+L:	dev@openvswitch.org
+W:	http://openvswitch.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitch.git
+S:	Maintained
+F:	net/openvswitch/
+
 OPL4 DRIVER
 M:	Clemens Ladisch <clemens@ladisch.de>
 L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
@@ -5094,6 +5099,7 @@ M:	Peter Zijlstra <a.p.zijlstra@chello.nl>
 M:	Paul Mackerras <paulus@samba.org>
 M:	Ingo Molnar <mingo@elte.hu>
 M:	Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core
 S:	Supported
 F:	kernel/events/*
 F:	include/linux/perf_event.h
@@ -5173,6 +5179,7 @@ F:	drivers/scsi/pm8001/
 
 POSIX CLOCKS and TIMERS
 M:	Thomas Gleixner <tglx@linutronix.de>
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
 S:	Supported
 F:	fs/timerfd.c
 F:	include/linux/timer*
@@ -5377,6 +5384,7 @@ S:	Supported
 F:	drivers/scsi/qla4xxx/
 
 QLOGIC QLA3XXX NETWORK DRIVER
+M:	Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
 M:	Ron Mercer <ron.mercer@qlogic.com>
 M:	linux-driver@qlogic.com
 L:	netdev@vger.kernel.org
@@ -5688,6 +5696,7 @@ F:	drivers/dma/dw_dmac.c
 TIMEKEEPING, NTP
 M:	John Stultz <johnstul@us.ibm.com>
 M:	Thomas Gleixner <tglx@linutronix.de>
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
 S:	Supported
 F:	include/linux/clocksource.h
 F:	include/linux/time.h
@@ -5712,6 +5721,7 @@ F:	drivers/watchdog/sc1200wdt.c
 SCHEDULER
 M:	Ingo Molnar <mingo@elte.hu>
 M:	Peter Zijlstra <peterz@infradead.org>
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core
 S:	Maintained
 F:	kernel/sched*
 F:	include/linux/sched.h
@@ -5894,7 +5904,6 @@ F:	drivers/net/ethernet/emulex/benet/
 
 SFC NETWORK DRIVER
 M:	Solarflare linux maintainers <linux-net-drivers@solarflare.com>
-M:	Steve Hodgson <shodgson@solarflare.com>
 M:	Ben Hutchings <bhutchings@solarflare.com>
 L:	netdev@vger.kernel.org
 S:	Supported
@@ -6260,7 +6269,7 @@ F:	arch/alpha/kernel/srm_env.c
 
 STABLE BRANCH
 M:	Greg Kroah-Hartman <greg@kroah.com>
-L:	stable@kernel.org
+L:	stable@vger.kernel.org
 S:	Maintained
 
 STAGING SUBSYSTEM
@@ -6321,12 +6330,6 @@ M:	David Täht <d@teklibre.com>
 S:	Odd Fixes
 F:	drivers/staging/frontier/
 
-STAGING - HYPER-V (MICROSOFT)
-M:	Hank Janssen <hjanssen@microsoft.com>
-M:	Haiyang Zhang <haiyangz@microsoft.com>
-S:	Odd Fixes
-F:	drivers/staging/hv/
-
 STAGING - INDUSTRIAL IO
 M:	Jonathan Cameron <jic23@cam.ac.uk>
 L:	linux-iio@vger.kernel.org
@@ -6502,6 +6505,13 @@ W:	http://tcp-lp-mod.sourceforge.net/
 S:	Maintained
 F:	net/ipv4/tcp_lp.c
 
+TEAM DRIVER
+M:	Jiri Pirko <jpirko@redhat.com>
+L:	netdev@vger.kernel.org
+S:	Supported
+F:	drivers/net/team/
+F:	include/linux/if_team.h
+
 TEGRA SUPPORT
 M:	Colin Cross <ccross@android.com>
 M:	Olof Johansson <olof@lixom.net>
@@ -6639,7 +6649,7 @@ TRACING
 M:	Steven Rostedt <rostedt@goodmis.org>
 M:	Frederic Weisbecker <fweisbec@gmail.com>
 M:	Ingo Molnar <mingo@redhat.com>
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git perf/core
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core
 S:	Maintained
 F:	Documentation/trace/ftrace.txt
 F:	arch/*/*/*/ftrace.h
@@ -7389,7 +7399,7 @@ M:	Thomas Gleixner <tglx@linutronix.de>
 M:	Ingo Molnar <mingo@redhat.com>
 M:	"H. Peter Anvin" <hpa@zytor.com>
 M:	x86@kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/core
 S:	Maintained
 F:	Documentation/x86/
 F:	arch/x86/

Makefile

@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 2
 SUBLEVEL = 0
-EXTRAVERSION = -rc3
+EXTRAVERSION =
 NAME = Saber-toothed Squirrel
 
 # *DOCUMENTATION*

arch/Kconfig

@@ -30,6 +30,10 @@ config OPROFILE_EVENT_MULTIPLEX
 config HAVE_OPROFILE
 	bool
 
+config OPROFILE_NMI_TIMER
+	def_bool y
+	depends on PERF_EVENTS && HAVE_PERF_EVENTS_NMI
+
 config KPROBES
 	bool "Kprobes"
 	depends on MODULES

arch/alpha/include/asm/ipcbuf.h

@@ -1,28 +1 @@
-#ifndef _ALPHA_IPCBUF_H
-#define _ALPHA_IPCBUF_H
-
-/* 
- * The ipc64_perm structure for alpha architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 32-bit seq
- * - 2 miscellaneous 64-bit values
- */
-
-struct ipc64_perm
-{
-	__kernel_key_t	key;
-	__kernel_uid_t	uid;
-	__kernel_gid_t	gid;
-	__kernel_uid_t	cuid;
-	__kernel_gid_t	cgid;
-	__kernel_mode_t	mode; 
-	unsigned short	seq;
-	unsigned short	__pad1;
-	unsigned long	__unused1;
-	unsigned long	__unused2;
-};
-
-#endif /* _ALPHA_IPCBUF_H */
+#include <asm-generic/ipcbuf.h>

arch/alpha/include/asm/socket.h

@@ -69,6 +69,9 @@
 
 #define SO_RXQ_OVFL             40
 
+#define SO_WIFI_STATUS		41
+#define SCM_WIFI_STATUS		SO_WIFI_STATUS
+
 /* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
  * have to define SOCK_NONBLOCK to a different value here.
  */

arch/alpha/include/asm/thread_info.h

@@ -79,7 +79,6 @@ register struct thread_info *__current_thread_info __asm__("$8");
 #define TIF_UAC_SIGBUS		12	/* ! userspace part of 'osf_sysinfo' */
 #define TIF_MEMDIE		13	/* is terminating due to OOM killer */
 #define TIF_RESTORE_SIGMASK	14	/* restore signal mask in do_signal */
-#define TIF_FREEZE		16	/* is freezing for suspend */
 
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
@@ -87,7 +86,6 @@ register struct thread_info *__current_thread_info __asm__("$8");
 #define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)
 #define _TIF_RESTORE_SIGMASK	(1<<TIF_RESTORE_SIGMASK)
 #define _TIF_NOTIFY_RESUME	(1<<TIF_NOTIFY_RESUME)
-#define _TIF_FREEZE		(1<<TIF_FREEZE)
 
 /* Work to do on interrupt/exception return.  */
 #define _TIF_WORK_MASK		(_TIF_SIGPENDING | _TIF_NEED_RESCHED | \

arch/alpha/include/asm/types.h

@@ -15,9 +15,4 @@
 #include <asm-generic/int-l64.h>
 #endif
 
-#ifndef __ASSEMBLY__
-
-typedef unsigned int umode_t;
-
-#endif /* __ASSEMBLY__ */
 #endif /* _ALPHA_TYPES_H */

arch/arm/Kconfig

@@ -220,8 +220,9 @@ config NEED_MACH_MEMORY_H
 	  be avoided when possible.
 
 config PHYS_OFFSET
-	hex "Physical address of main memory"
+	hex "Physical address of main memory" if MMU
 	depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
+	default DRAM_BASE if !MMU
 	help
 	  Please provide the physical address corresponding to the
 	  location of main memory in your system.
@@ -257,6 +258,7 @@ config ARCH_INTEGRATOR
 	select ARCH_HAS_CPUFREQ
 	select CLKDEV_LOOKUP
 	select HAVE_MACH_CLKDEV
+	select HAVE_TCM
 	select ICST
 	select GENERIC_CLOCKEVENTS
 	select PLAT_VERSATILE
@@ -340,10 +342,12 @@ config ARCH_HIGHBANK
 	select ARM_AMBA
 	select ARM_GIC
 	select ARM_TIMER_SP804
+	select CACHE_L2X0
 	select CLKDEV_LOOKUP
 	select CPU_V7
 	select GENERIC_CLOCKEVENTS
 	select HAVE_ARM_SCU
+	select HAVE_SMP
 	select USE_OF
 	help
 	  Support for the Calxeda Highbank SoC based boards.
@@ -361,6 +365,7 @@ config ARCH_CNS3XXX
 	select CPU_V6K
 	select GENERIC_CLOCKEVENTS
 	select ARM_GIC
+	select MIGHT_HAVE_CACHE_L2X0
 	select MIGHT_HAVE_PCI
 	select PCI_DOMAINS if PCI
 	help
@@ -381,6 +386,7 @@ config ARCH_PRIMA2
 	select GENERIC_CLOCKEVENTS
 	select CLKDEV_LOOKUP
 	select GENERIC_IRQ_CHIP
+	select MIGHT_HAVE_CACHE_L2X0
 	select USE_OF
 	select ZONE_DMA
 	help
@@ -633,6 +639,8 @@ config ARCH_TEGRA
 	select GENERIC_GPIO
 	select HAVE_CLK
 	select HAVE_SCHED_CLOCK
+	select HAVE_SMP
+	select MIGHT_HAVE_CACHE_L2X0
 	select ARCH_HAS_CPUFREQ
 	help
 	  This enables support for NVIDIA Tegra based systems (Tegra APX,
@@ -702,7 +710,9 @@ config ARCH_SHMOBILE
 	select HAVE_CLK
 	select CLKDEV_LOOKUP
 	select HAVE_MACH_CLKDEV
+	select HAVE_SMP
 	select GENERIC_CLOCKEVENTS
+	select MIGHT_HAVE_CACHE_L2X0
 	select NO_IOPORT
 	select SPARSE_IRQ
 	select MULTI_IRQ_HANDLER
@@ -867,16 +877,6 @@ config ARCH_SHARK
 	  Support for the StrongARM based Digital DNARD machine, also known
 	  as "Shark" (<http://www.shark-linux.de/shark.html>).
 
-config ARCH_TCC_926
-	bool "Telechips TCC ARM926-based systems"
-	select CLKSRC_MMIO
-	select CPU_ARM926T
-	select HAVE_CLK
-	select CLKDEV_LOOKUP
-	select GENERIC_CLOCKEVENTS
-	help
-	  Support for Telechips TCC ARM926-based systems.
-
 config ARCH_U300
 	bool "ST-Ericsson U300 Series"
 	depends on MMU
@@ -904,6 +904,8 @@ config ARCH_U8500
 	select CLKDEV_LOOKUP
 	select ARCH_REQUIRE_GPIOLIB
 	select ARCH_HAS_CPUFREQ
+	select HAVE_SMP
+	select MIGHT_HAVE_CACHE_L2X0
 	help
 	  Support for ST-Ericsson's Ux500 architecture
 
@@ -914,6 +916,7 @@ config ARCH_NOMADIK
 	select CPU_ARM926T
 	select CLKDEV_LOOKUP
 	select GENERIC_CLOCKEVENTS
+	select MIGHT_HAVE_CACHE_L2X0
 	select ARCH_REQUIRE_GPIOLIB
 	help
 	  Support for the Nomadik platform by ST-Ericsson
@@ -973,6 +976,7 @@ config ARCH_ZYNQ
 	select ARM_GIC
 	select ARM_AMBA
 	select ICST
+	select MIGHT_HAVE_CACHE_L2X0
 	select USE_OF
 	help
 	  Support for Xilinx Zynq ARM Cortex A9 Platform
@@ -1059,8 +1063,6 @@ source "arch/arm/plat-s5p/Kconfig"
 
 source "arch/arm/plat-spear/Kconfig"
 
-source "arch/arm/plat-tcc/Kconfig"
-
 if ARCH_S3C2410
 source "arch/arm/mach-s3c2410/Kconfig"
 source "arch/arm/mach-s3c2412/Kconfig"
@@ -1125,6 +1127,11 @@ config ARM_TIMER_SP804
 
 source arch/arm/mm/Kconfig
 
+config ARM_NR_BANKS
+	int
+	default 16 if ARCH_EP93XX
+	default 8
+
 config IWMMXT
 	bool "Enable iWMMXt support"
 	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
@@ -1133,10 +1140,9 @@ config IWMMXT
 	  Enable support for iWMMXt context switching at run time if
 	  running on a CPU that supports it.
 
-#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
 config XSCALE_PMU
 	bool
-	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
+	depends on CPU_XSCALE
 	default y
 
 config CPU_HAS_PMU
@@ -1231,7 +1237,7 @@ config ARM_ERRATA_742231
 	  capabilities of the processor.
 
 config PL310_ERRATA_588369
-	bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
+	bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
 	depends on CACHE_L2X0
 	help
 	   The PL310 L2 cache controller implements three types of Clean &
@@ -1245,7 +1251,7 @@ config PL310_ERRATA_588369
 
 config ARM_ERRATA_720789
 	bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
-	depends on CPU_V7 && SMP
+	depends on CPU_V7
 	help
 	  This option enables the workaround for the 720789 Cortex-A9 (prior to
 	  r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
@@ -1256,7 +1262,7 @@ config ARM_ERRATA_720789
 	  entries regardless of the ASID.
 
 config PL310_ERRATA_727915
-	bool "Background Clean & Invalidate by Way operation can cause data corruption"
+	bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
 	depends on CACHE_L2X0
 	help
 	  PL310 implements the Clean & Invalidate by Way L2 cache maintenance
@@ -1281,7 +1287,7 @@ config ARM_ERRATA_743622
 
 config ARM_ERRATA_751472
 	bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
-	depends on CPU_V7 && SMP
+	depends on CPU_V7
 	help
 	  This option enables the workaround for the 751472 Cortex-A9 (prior
 	  to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
@@ -1289,8 +1295,8 @@ config ARM_ERRATA_751472
 	  operation is received by a CPU before the ICIALLUIS has completed,
 	  potentially leading to corrupted entries in the cache or TLB.
 
-config ARM_ERRATA_753970
-	bool "ARM errata: cache sync operation may be faulty"
+config PL310_ERRATA_753970
+	bool "PL310 errata: cache sync operation may be faulty"
 	depends on CACHE_PL310
 	help
 	  This option enables the workaround for the 753970 PL310 (r3p0) erratum.
@@ -1352,6 +1358,18 @@ config ARM_ERRATA_764369
 	  relevant cache maintenance functions and sets a specific bit
 	  in the diagnostic control register of the SCU.
 
+config PL310_ERRATA_769419
+	bool "PL310 errata: no automatic Store Buffer drain"
+	depends on CACHE_L2X0
+	help
+	  On revisions of the PL310 prior to r3p2, the Store Buffer does
+	  not automatically drain. This can cause normal, non-cacheable
+	  writes to be retained when the memory system is idle, leading
+	  to suboptimal I/O performance for drivers using coherent DMA.
+	  This option adds a write barrier to the cpu_idle loop so that,
+	  on systems with an outer cache, the store buffer is drained
+	  explicitly.
+
 endmenu
 
 source "arch/arm/common/Kconfig"
@@ -1422,14 +1440,20 @@ menu "Kernel Features"
 
 source "kernel/time/Kconfig"
 
+config HAVE_SMP
+	bool
+	help
+	  This option should be selected by machines which have an SMP-
+	  capable CPU.
+
+	  The only effect of this option is to make the SMP-related
+	  options available to the user for configuration.
+
 config SMP
 	bool "Symmetric Multi-Processing"
 	depends on CPU_V6K || CPU_V7
 	depends on GENERIC_CLOCKEVENTS
-	depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
-		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
-		 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
-		 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE || ARCH_HIGHBANK || SOC_IMX6Q
+	depends on HAVE_SMP
 	depends on MMU
 	select USE_GENERIC_SMP_HELPERS
 	select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
@@ -1547,6 +1571,16 @@ config LOCAL_TIMERS
 	  accounting to be spread across the timer interval, preventing a
 	  "thundering herd" at every timer tick.
 
+config ARCH_NR_GPIO
+	int
+	default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
+	default 350 if ARCH_U8500
+	default 0
+	help
+	  Maximum number of GPIOs in the system.
+
+	  If unsure, leave the default value.
+
 source kernel/Kconfig.preempt
 
 config HZ
@@ -1959,7 +1993,7 @@ endchoice
 
 config XIP_KERNEL
 	bool "Kernel Execute-In-Place from ROM"
-	depends on !ZBOOT_ROM
+	depends on !ZBOOT_ROM && !ARM_LPAE
 	help
 	  Execute-In-Place allows the kernel to run from non-volatile storage
 	  directly addressable by the CPU, such as NOR flash. This saves RAM
@@ -1989,7 +2023,7 @@ config XIP_PHYS_ADDR
 
 config KEXEC
 	bool "Kexec system call (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot

arch/arm/Makefile

@@ -184,7 +184,6 @@ machine-$(CONFIG_ARCH_EXYNOS4)		:= exynos
 machine-$(CONFIG_ARCH_SA1100)		:= sa1100
 machine-$(CONFIG_ARCH_SHARK)		:= shark
 machine-$(CONFIG_ARCH_SHMOBILE) 	:= shmobile
-machine-$(CONFIG_ARCH_TCC8K)		:= tcc8k
 machine-$(CONFIG_ARCH_TEGRA)		:= tegra
 machine-$(CONFIG_ARCH_U300)		:= u300
 machine-$(CONFIG_ARCH_U8500)		:= ux500
@@ -204,7 +203,6 @@ machine-$(CONFIG_ARCH_ZYNQ)		:= zynq
 plat-$(CONFIG_ARCH_MXC)		:= mxc
 plat-$(CONFIG_ARCH_OMAP)	:= omap
 plat-$(CONFIG_ARCH_S3C64XX)	:= samsung
-plat-$(CONFIG_ARCH_TCC_926)	:= tcc
 plat-$(CONFIG_ARCH_ZYNQ)	:= versatile
 plat-$(CONFIG_PLAT_IOP)		:= iop
 plat-$(CONFIG_PLAT_NOMADIK)	:= nomadik

arch/arm/boot/compressed/Makefile

@@ -126,7 +126,8 @@ ccflags-y := -fpic -fno-builtin -I$(obj)
 asflags-y := -Wa,-march=all
 
 # Supply kernel BSS size to the decompressor via a linker symbol.
-KBSS_SZ = $(shell size $(obj)/../../../../vmlinux | awk 'END{print $$3}')
+KBSS_SZ = $(shell $(CROSS_COMPILE)size $(obj)/../../../../vmlinux | \
+		awk 'END{print $$3}')
 LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ)
 # Supply ZRELADDR to the decompressor via a linker symbol.
 ifneq ($(CONFIG_AUTO_ZRELADDR),y)

arch/arm/boot/compressed/head.S

@@ -659,6 +659,7 @@ __armv7_mmu_cache_on:
 		mcrne	p15, 0, r3, c2, c0, 0	@ load page table pointer
 		mcrne	p15, 0, r1, c3, c0, 0	@ load domain access control
 #endif
+		mcr	p15, 0, r0, c7, c5, 4	@ ISB
 		mcr	p15, 0, r0, c1, c0, 0	@ load control register
 		mrc	p15, 0, r0, c1, c0, 0	@ and read it back
 		mov	r0, #0

arch/arm/boot/dts/testcases/tests-phandle.dtsi

@@ -0,0 +1,37 @@
+
+/ {
+	testcase-data {
+		phandle-tests {
+			provider0: provider0 {
+				#phandle-cells = <0>;
+			};
+
+			provider1: provider1 {
+				#phandle-cells = <1>;
+			};
+
+			provider2: provider2 {
+				#phandle-cells = <2>;
+			};
+
+			provider3: provider3 {
+				#phandle-cells = <3>;
+			};
+
+			consumer-a {
+				phandle-list =	<&provider1 1>,
+						<&provider2 2 0>,
+						<0>,
+						<&provider3 4 4 3>,
+						<&provider2 5 100>,
+						<&provider0>,
+						<&provider1 7>;
+				phandle-list-names = "first", "second", "third";
+
+				phandle-list-bad-phandle = <12345678 0 0>;
+				phandle-list-bad-args = <&provider2 1 0>,
+							<&provider3 0>;
+			};
+		};
+	};
+};

arch/arm/boot/dts/testcases/tests.dtsi

@@ -0,0 +1 @@
+/include/ "tests-phandle.dtsi"

arch/arm/boot/dts/versatile-pb.dts

@@ -46,3 +46,5 @@
 		};
 	};
 };
+
+/include/ "testcases/tests.dtsi"

arch/arm/common/Kconfig

@@ -1,8 +1,14 @@
 config ARM_GIC
 	select IRQ_DOMAIN
+	select MULTI_IRQ_HANDLER
+	bool
+
+config GIC_NON_BANKED
 	bool
 
 config ARM_VIC
+	select IRQ_DOMAIN
+	select MULTI_IRQ_HANDLER
 	bool
 
 config ARM_VIC_NR

arch/arm/common/gic.c

@@ -40,13 +40,36 @@
 #include <linux/slab.h>
 
 #include <asm/irq.h>
+#include <asm/exception.h>
 #include <asm/mach/irq.h>
 #include <asm/hardware/gic.h>
 
-static DEFINE_RAW_SPINLOCK(irq_controller_lock);
+union gic_base {
+	void __iomem *common_base;
+	void __percpu __iomem **percpu_base;
+};
+
+struct gic_chip_data {
+	unsigned int irq_offset;
+	union gic_base dist_base;
+	union gic_base cpu_base;
+#ifdef CONFIG_CPU_PM
+	u32 saved_spi_enable[DIV_ROUND_UP(1020, 32)];
+	u32 saved_spi_conf[DIV_ROUND_UP(1020, 16)];
+	u32 saved_spi_target[DIV_ROUND_UP(1020, 4)];
+	u32 __percpu *saved_ppi_enable;
+	u32 __percpu *saved_ppi_conf;
+#endif
+#ifdef CONFIG_IRQ_DOMAIN
+	struct irq_domain domain;
+#endif
+	unsigned int gic_irqs;
+#ifdef CONFIG_GIC_NON_BANKED
+	void __iomem *(*get_base)(union gic_base *);
+#endif
+};
 
-/* Address of GIC 0 CPU interface */
-void __iomem *gic_cpu_base_addr __read_mostly;
+static DEFINE_RAW_SPINLOCK(irq_controller_lock);
 
 /*
  * Supported arch specific GIC irq extension.
@@ -67,16 +90,48 @@ struct irq_chip gic_arch_extn = {
 
 static struct gic_chip_data gic_data[MAX_GIC_NR] __read_mostly;
 
+#ifdef CONFIG_GIC_NON_BANKED
+static void __iomem *gic_get_percpu_base(union gic_base *base)
+{
+	return *__this_cpu_ptr(base->percpu_base);
+}
+
+static void __iomem *gic_get_common_base(union gic_base *base)
+{
+	return base->common_base;
+}
+
+static inline void __iomem *gic_data_dist_base(struct gic_chip_data *data)
+{
+	return data->get_base(&data->dist_base);
+}
+
+static inline void __iomem *gic_data_cpu_base(struct gic_chip_data *data)
+{
+	return data->get_base(&data->cpu_base);
+}
+
+static inline void gic_set_base_accessor(struct gic_chip_data *data,
+					 void __iomem *(*f)(union gic_base *))
+{
+	data->get_base = f;
+}
+#else
+#define gic_data_dist_base(d)	((d)->dist_base.common_base)
+#define gic_data_cpu_base(d)	((d)->cpu_base.common_base)
+#define gic_set_base_accessor(d,f)
+#endif
+
 static inline void __iomem *gic_dist_base(struct irq_data *d)
 {
 	struct gic_chip_data *gic_data = irq_data_get_irq_chip_data(d);
-	return gic_data->dist_base;
+	return gic_data_dist_base(gic_data);
 }
 
 static inline void __iomem *gic_cpu_base(struct irq_data *d)
 {
 	struct gic_chip_data *gic_data = irq_data_get_irq_chip_data(d);
-	return gic_data->cpu_base;
+	return gic_data_cpu_base(gic_data);
 }
 
 static inline unsigned int gic_irq(struct irq_data *d)
@@ -215,6 +270,32 @@ static int gic_set_wake(struct irq_data *d, unsigned int on)
 #define gic_set_wake	NULL
 #endif
 
+asmlinkage void __exception_irq_entry gic_handle_irq(struct pt_regs *regs)
+{
+	u32 irqstat, irqnr;
+	struct gic_chip_data *gic = &gic_data[0];
+	void __iomem *cpu_base = gic_data_cpu_base(gic);
+
+	do {
+		irqstat = readl_relaxed(cpu_base + GIC_CPU_INTACK);
+		irqnr = irqstat & ~0x1c00;
+
+		if (likely(irqnr > 15 && irqnr < 1021)) {
+			irqnr = irq_domain_to_irq(&gic->domain, irqnr);
+			handle_IRQ(irqnr, regs);
+			continue;
+		}
+		if (irqnr < 16) {
+			writel_relaxed(irqstat, cpu_base + GIC_CPU_EOI);
+#ifdef CONFIG_SMP
+			handle_IPI(irqnr, regs);
+#endif
+			continue;
+		}
+		break;
+	} while (1);
+}
+
 static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
 {
 	struct gic_chip_data *chip_data = irq_get_handler_data(irq);
@@ -225,7 +306,7 @@ static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
 	chained_irq_enter(chip, desc);
 
 	raw_spin_lock(&irq_controller_lock);
-	status = readl_relaxed(chip_data->cpu_base + GIC_CPU_INTACK);
+	status = readl_relaxed(gic_data_cpu_base(chip_data) + GIC_CPU_INTACK);
 	raw_spin_unlock(&irq_controller_lock);
 
 	gic_irq = (status & 0x3ff);
@@ -270,7 +351,7 @@ static void __init gic_dist_init(struct gic_chip_data *gic)
 	u32 cpumask;
 	unsigned int gic_irqs = gic->gic_irqs;
 	struct irq_domain *domain = &gic->domain;
-	void __iomem *base = gic->dist_base;
+	void __iomem *base = gic_data_dist_base(gic);
 	u32 cpu = 0;
 
 #ifdef CONFIG_SMP
@@ -330,8 +411,8 @@ static void __init gic_dist_init(struct gic_chip_data *gic)
 
 static void __cpuinit gic_cpu_init(struct gic_chip_data *gic)
 {
-	void __iomem *dist_base = gic->dist_base;
-	void __iomem *base = gic->cpu_base;
+	void __iomem *dist_base = gic_data_dist_base(gic);
+	void __iomem *base = gic_data_cpu_base(gic);
 	int i;
 
 	/*
@@ -368,7 +449,7 @@ static void gic_dist_save(unsigned int gic_nr)
 		BUG();
 
 	gic_irqs = gic_data[gic_nr].gic_irqs;
-	dist_base = gic_data[gic_nr].dist_base;
+	dist_base = gic_data_dist_base(&gic_data[gic_nr]);
 
 	if (!dist_base)
 		return;
@@ -403,7 +484,7 @@ static void gic_dist_restore(unsigned int gic_nr)
 		BUG();
 
 	gic_irqs = gic_data[gic_nr].gic_irqs;
-	dist_base = gic_data[gic_nr].dist_base;
+	dist_base = gic_data_dist_base(&gic_data[gic_nr]);
 
 	if (!dist_base)
 		return;
@@ -439,8 +520,8 @@ static void gic_cpu_save(unsigned int gic_nr)
 	if (gic_nr >= MAX_GIC_NR)
 		BUG();
 
-	dist_base = gic_data[gic_nr].dist_base;
-	cpu_base = gic_data[gic_nr].cpu_base;
+	dist_base = gic_data_dist_base(&gic_data[gic_nr]);
+	cpu_base = gic_data_cpu_base(&gic_data[gic_nr]);
 
 	if (!dist_base || !cpu_base)
 		return;
@@ -465,8 +546,8 @@ static void gic_cpu_restore(unsigned int gic_nr)
 	if (gic_nr >= MAX_GIC_NR)
 		BUG();
 
-	dist_base = gic_data[gic_nr].dist_base;
-	cpu_base = gic_data[gic_nr].cpu_base;
+	dist_base = gic_data_dist_base(&gic_data[gic_nr]);
+	cpu_base = gic_data_cpu_base(&gic_data[gic_nr]);
 
 	if (!dist_base || !cpu_base)
 		return;
@@ -491,6 +572,11 @@ static int gic_notifier(struct notifier_block *self, unsigned long cmd,	void *v)
 	int i;
 
 	for (i = 0; i < MAX_GIC_NR; i++) {
+#ifdef CONFIG_GIC_NON_BANKED
+		/* Skip over unused GICs */
+		if (!gic_data[i].get_base)
+			continue;
+#endif
 		switch (cmd) {
 		case CPU_PM_ENTER:
 			gic_cpu_save(i);
@@ -526,7 +612,8 @@ static void __init gic_pm_init(struct gic_chip_data *gic)
 		sizeof(u32));
 	BUG_ON(!gic->saved_ppi_conf);
 
-	cpu_pm_register_notifier(&gic_notifier_block);
+	if (gic == &gic_data[0])
+		cpu_pm_register_notifier(&gic_notifier_block);
 }
 #else
 static void __init gic_pm_init(struct gic_chip_data *gic)
@@ -563,8 +650,9 @@ const struct irq_domain_ops gic_irq_domain_ops = {
 #endif
 };
 
-void __init gic_init(unsigned int gic_nr, int irq_start,
-	void __iomem *dist_base, void __iomem *cpu_base)
+void __init gic_init_bases(unsigned int gic_nr, int irq_start,
+			   void __iomem *dist_base, void __iomem *cpu_base,
+			   u32 percpu_offset)
 {
 	struct gic_chip_data *gic;
 	struct irq_domain *domain;
@@ -574,26 +662,55 @@ void __init gic_init(unsigned int gic_nr, int irq_start,
 
 	gic = &gic_data[gic_nr];
 	domain = &gic->domain;
-	gic->dist_base = dist_base;
-	gic->cpu_base = cpu_base;
+#ifdef CONFIG_GIC_NON_BANKED
+	if (percpu_offset) { /* Frankein-GIC without banked registers... */
+		unsigned int cpu;
+
+		gic->dist_base.percpu_base = alloc_percpu(void __iomem *);
+		gic->cpu_base.percpu_base = alloc_percpu(void __iomem *);
+		if (WARN_ON(!gic->dist_base.percpu_base ||
+			    !gic->cpu_base.percpu_base)) {
+			free_percpu(gic->dist_base.percpu_base);
+			free_percpu(gic->cpu_base.percpu_base);
+			return;
+		}
+
+		for_each_possible_cpu(cpu) {
+			unsigned long offset = percpu_offset * cpu_logical_map(cpu);
+			*per_cpu_ptr(gic->dist_base.percpu_base, cpu) = dist_base + offset;
+			*per_cpu_ptr(gic->cpu_base.percpu_base, cpu) = cpu_base + offset;
+		}
+
+		gic_set_base_accessor(gic, gic_get_percpu_base);
+	} else
+#endif
+	{			/* Normal, sane GIC... */
+		WARN(percpu_offset,
+		     "GIC_NON_BANKED not enabled, ignoring %08x offset!",
+		     percpu_offset);
+		gic->dist_base.common_base = dist_base;
+		gic->cpu_base.common_base = cpu_base;
+		gic_set_base_accessor(gic, gic_get_common_base);
+	}
 
 	/*
 	 * For primary GICs, skip over SGIs.
 	 * For secondary GICs, skip over PPIs, too.
 	 */
+	domain->hwirq_base = 32;
 	if (gic_nr == 0) {
-		gic_cpu_base_addr = cpu_base;
-		domain->hwirq_base = 16;
-		if (irq_start > 0)
-			irq_start = (irq_start & ~31) + 16;
-	} else
-		domain->hwirq_base = 32;
+		if ((irq_start & 31) > 0) {
+			domain->hwirq_base = 16;
+			if (irq_start != -1)
+				irq_start = (irq_start & ~31) + 16;
+		}
+	}
 
 	/*
 	 * Find out how many interrupts are supported.
 	 * The GIC only supports up to 1020 interrupt sources.
 	 */
-	gic_irqs = readl_relaxed(dist_base + GIC_DIST_CTR) & 0x1f;
+	gic_irqs = readl_relaxed(gic_data_dist_base(gic) + GIC_DIST_CTR) & 0x1f;
 	gic_irqs = (gic_irqs + 1) * 32;
 	if (gic_irqs > 1020)
 		gic_irqs = 1020;
@@ -641,7 +758,7 @@ void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
 	dsb();
 
 	/* this always happens on GIC0 */
-	writel_relaxed(map << 16 | irq, gic_data[0].dist_base + GIC_DIST_SOFTINT);
+	writel_relaxed(map << 16 | irq, gic_data_dist_base(&gic_data[0]) + GIC_DIST_SOFTINT);
 }
 #endif
 
@@ -652,6 +769,7 @@ int __init gic_of_init(struct device_node *node, struct device_node *parent)
 {
 	void __iomem *cpu_base;
 	void __iomem *dist_base;
+	u32 percpu_offset;
 	int irq;
 	struct irq_domain *domain = &gic_data[gic_cnt].domain;
 
@@ -664,9 +782,12 @@ int __init gic_of_init(struct device_node *node, struct device_node *parent)
 	cpu_base = of_iomap(node, 1);
 	WARN(!cpu_base, "unable to map gic cpu registers\n");
 
+	if (of_property_read_u32(node, "cpu-offset", &percpu_offset))
+		percpu_offset = 0;
+
 	domain->of_node = of_node_get(node);
 
-	gic_init(gic_cnt, -1, dist_base, cpu_base);
+	gic_init_bases(gic_cnt, -1, dist_base, cpu_base, percpu_offset);
 
 	if (parent) {
 		irq = irq_of_parse_and_map(node, 0);

arch/arm/common/pl330.c

@@ -221,17 +221,6 @@
  */
 #define MCODE_BUFF_PER_REQ	256
 
-/*
- * Mark a _pl330_req as free.
- * We do it by writing DMAEND as the first instruction
- * because no valid request is going to have DMAEND as
- * its first instruction to execute.
- */
-#define MARK_FREE(req)	do { \
-				_emit_END(0, (req)->mc_cpu); \
-				(req)->mc_len = 0; \
-			} while (0)
-
 /* If the _pl330_req is available to the client */
 #define IS_FREE(req)	(*((u8 *)((req)->mc_cpu)) == CMD_DMAEND)
 
@@ -301,8 +290,10 @@ struct pl330_thread {
 	struct pl330_dmac *dmac;
 	/* Only two at a time */
 	struct _pl330_req req[2];
-	/* Index of the last submitted request */
+	/* Index of the last enqueued request */
 	unsigned lstenq;
+	/* Index of the last submitted request or -1 if the DMA is stopped */
+	int req_running;
 };
 
 enum pl330_dmac_state {
@@ -778,6 +769,22 @@ static inline void _execute_DBGINSN(struct pl330_thread *thrd,
 	writel(0, regs + DBGCMD);
 }
 
+/*
+ * Mark a _pl330_req as free.
+ * We do it by writing DMAEND as the first instruction
+ * because no valid request is going to have DMAEND as
+ * its first instruction to execute.
+ */
+static void mark_free(struct pl330_thread *thrd, int idx)
+{
+	struct _pl330_req *req = &thrd->req[idx];
+
+	_emit_END(0, req->mc_cpu);
+	req->mc_len = 0;
+
+	thrd->req_running = -1;
+}
+
 static inline u32 _state(struct pl330_thread *thrd)
 {
 	void __iomem *regs = thrd->dmac->pinfo->base;
@@ -836,31 +843,6 @@ static inline u32 _state(struct pl330_thread *thrd)
 	}
 }
 
-/* If the request 'req' of thread 'thrd' is currently active */
-static inline bool _req_active(struct pl330_thread *thrd,
-		struct _pl330_req *req)
-{
-	void __iomem *regs = thrd->dmac->pinfo->base;
-	u32 buf = req->mc_bus, pc = readl(regs + CPC(thrd->id));
-
-	if (IS_FREE(req))
-		return false;
-
-	return (pc >= buf && pc <= buf + req->mc_len) ? true : false;
-}
-
-/* Returns 0 if the thread is inactive, ID of active req + 1 otherwise */
-static inline unsigned _thrd_active(struct pl330_thread *thrd)
-{
-	if (_req_active(thrd, &thrd->req[0]))
-		return 1; /* First req active */
-
-	if (_req_active(thrd, &thrd->req[1]))
-		return 2; /* Second req active */
-
-	return 0;
-}
-
 static void _stop(struct pl330_thread *thrd)
 {
 	void __iomem *regs = thrd->dmac->pinfo->base;
@@ -892,17 +874,22 @@ static bool _trigger(struct pl330_thread *thrd)
 	struct _arg_GO go;
 	unsigned ns;
 	u8 insn[6] = {0, 0, 0, 0, 0, 0};
+	int idx;
 
 	/* Return if already ACTIVE */
 	if (_state(thrd) != PL330_STATE_STOPPED)
 		return true;
 
-	if (!IS_FREE(&thrd->req[1 - thrd->lstenq]))
-		req = &thrd->req[1 - thrd->lstenq];
-	else if (!IS_FREE(&thrd->req[thrd->lstenq]))
-		req = &thrd->req[thrd->lstenq];
-	else
-		req = NULL;
+	idx = 1 - thrd->lstenq;
+	if (!IS_FREE(&thrd->req[idx]))
+		req = &thrd->req[idx];
+	else {
+		idx = thrd->lstenq;
+		if (!IS_FREE(&thrd->req[idx]))
+			req = &thrd->req[idx];
+		else
+			req = NULL;
+	}
 
 	/* Return if no request */
 	if (!req || !req->r)
@@ -933,6 +920,8 @@ static bool _trigger(struct pl330_thread *thrd)
 	/* Only manager can execute GO */
 	_execute_DBGINSN(thrd, insn, true);
 
+	thrd->req_running = idx;
+
 	return true;
 }
 
@@ -1211,8 +1200,8 @@ static inline u32 _prepare_ccr(const struct pl330_reqcfg *rqc)
 	ccr |= (rqc->brst_size << CC_SRCBRSTSIZE_SHFT);
 	ccr |= (rqc->brst_size << CC_DSTBRSTSIZE_SHFT);
 
-	ccr |= (rqc->dcctl << CC_SRCCCTRL_SHFT);
-	ccr |= (rqc->scctl << CC_DSTCCTRL_SHFT);
+	ccr |= (rqc->scctl << CC_SRCCCTRL_SHFT);
+	ccr |= (rqc->dcctl << CC_DSTCCTRL_SHFT);
 
 	ccr |= (rqc->swap << CC_SWAP_SHFT);
 
@@ -1382,8 +1371,8 @@ static void pl330_dotask(unsigned long data)
 
 			thrd->req[0].r = NULL;
 			thrd->req[1].r = NULL;
-			MARK_FREE(&thrd->req[0]);
-			MARK_FREE(&thrd->req[1]);
+			mark_free(thrd, 0);
+			mark_free(thrd, 1);
 
 			/* Clear the reset flag */
 			pl330->dmac_tbd.reset_chan &= ~(1 << i);
@@ -1461,14 +1450,12 @@ int pl330_update(const struct pl330_info *pi)
 
 			thrd = &pl330->channels[id];
 
-			active = _thrd_active(thrd);
-			if (!active) /* Aborted */
+			active = thrd->req_running;
+			if (active == -1) /* Aborted */
 				continue;
 
-			active -= 1;
-
 			rqdone = &thrd->req[active];
-			MARK_FREE(rqdone);
+			mark_free(thrd, active);
 
 			/* Get going again ASAP */
 			_start(thrd);
@@ -1480,13 +1467,19 @@ int pl330_update(const struct pl330_info *pi)
 
 	/* Now that we are in no hurry, do the callbacks */
 	while (!list_empty(&pl330->req_done)) {
+		struct pl330_req *r;
+
 		rqdone = container_of(pl330->req_done.next,
 					struct _pl330_req, rqd);
 
 		list_del_init(&rqdone->rqd);
 
+		/* Detach the req */
+		r = rqdone->r;
+		rqdone->r = NULL;
+
 		spin_unlock_irqrestore(&pl330->lock, flags);
-		_callback(rqdone->r, PL330_ERR_NONE);
+		_callback(r, PL330_ERR_NONE);
 		spin_lock_irqsave(&pl330->lock, flags);
 	}
 
@@ -1509,7 +1502,7 @@ int pl330_chan_ctrl(void *ch_id, enum pl330_chan_op op)
 	struct pl330_thread *thrd = ch_id;
 	struct pl330_dmac *pl330;
 	unsigned long flags;
-	int ret = 0, active;
+	int ret = 0, active = thrd->req_running;
 
 	if (!thrd || thrd->free || thrd->dmac->state == DYING)
 		return -EINVAL;
@@ -1525,28 +1518,24 @@ int pl330_chan_ctrl(void *ch_id, enum pl330_chan_op op)
 
 		thrd->req[0].r = NULL;
 		thrd->req[1].r = NULL;
-		MARK_FREE(&thrd->req[0]);
-		MARK_FREE(&thrd->req[1]);
+		mark_free(thrd, 0);
+		mark_free(thrd, 1);
 		break;
 
 	case PL330_OP_ABORT:
-		active = _thrd_active(thrd);
-
 		/* Make sure the channel is stopped */
 		_stop(thrd);
 
 		/* ABORT is only for the active req */
-		if (!active)
+		if (active == -1)
 			break;
 
-		active--;
-
 		thrd->req[active].r = NULL;
-		MARK_FREE(&thrd->req[active]);
+		mark_free(thrd, active);
 
 		/* Start the next */
 	case PL330_OP_START:
-		if (!_thrd_active(thrd) && !_start(thrd))
+		if ((active == -1) && !_start(thrd))
 			ret = -EIO;
 		break;
 
@@ -1587,14 +1576,13 @@ int pl330_chan_status(void *ch_id, struct pl330_chanstatus *pstatus)
 	else
 		pstatus->faulting = false;
 
-	active = _thrd_active(thrd);
+	active = thrd->req_running;
 
-	if (!active) {
+	if (active == -1) {
 		/* Indicate that the thread is not running */
 		pstatus->top_req = NULL;
 		pstatus->wait_req = NULL;
 	} else {
-		active--;
 		pstatus->top_req = thrd->req[active].r;
 		pstatus->wait_req = !IS_FREE(&thrd->req[1 - active])
 					? thrd->req[1 - active].r : NULL;
@@ -1623,6 +1611,11 @@ static inline int _alloc_event(struct pl330_thread *thrd)
 	return -1;
 }
 
+static bool _chan_ns(const struct pl330_info *pi, int i)
+{
+	return pi->pcfg.irq_ns & (1 << i);
+}
+
 /* Upon success, returns IdentityToken for the
  * allocated channel, NULL otherwise.
  */
@@ -1647,15 +1640,16 @@ void *pl330_request_channel(const struct pl330_info *pi)
 
 	for (i = 0; i < chans; i++) {
 		thrd = &pl330->channels[i];
-		if (thrd->free) {
+		if ((thrd->free) && (!_manager_ns(thrd) ||
+					_chan_ns(pi, i))) {
 			thrd->ev = _alloc_event(thrd);
 			if (thrd->ev >= 0) {
 				thrd->free = false;
 				thrd->lstenq = 1;
 				thrd->req[0].r = NULL;
-				MARK_FREE(&thrd->req[0]);
+				mark_free(thrd, 0);
 				thrd->req[1].r = NULL;
-				MARK_FREE(&thrd->req[1]);
+				mark_free(thrd, 1);
 				break;
 			}
 		}
@@ -1761,14 +1755,14 @@ static inline void _reset_thread(struct pl330_thread *thrd)
 	thrd->req[0].mc_bus = pl330->mcode_bus
 				+ (thrd->id * pi->mcbufsz);
 	thrd->req[0].r = NULL;
-	MARK_FREE(&thrd->req[0]);
+	mark_free(thrd, 0);
 
 	thrd->req[1].mc_cpu = thrd->req[0].mc_cpu
 				+ pi->mcbufsz / 2;
 	thrd->req[1].mc_bus = thrd->req[0].mc_bus
 				+ pi->mcbufsz / 2;
 	thrd->req[1].r = NULL;
-	MARK_FREE(&thrd->req[1]);
+	mark_free(thrd, 1);
 }
 
 static int dmac_alloc_threads(struct pl330_dmac *pl330)

arch/arm/common/timer-sp.c

@@ -143,7 +143,6 @@ static int sp804_set_next_event(unsigned long next,
 }
 
 static struct clock_event_device sp804_clockevent = {
-	.shift		= 32,
 	.features       = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
 	.set_mode	= sp804_set_mode,
 	.set_next_event	= sp804_set_next_event,
@@ -169,13 +168,9 @@ void __init sp804_clockevents_init(void __iomem *base, unsigned int irq,
 
 	clkevt_base = base;
 	clkevt_reload = DIV_ROUND_CLOSEST(rate, HZ);
-
 	evt->name = name;
 	evt->irq = irq;
-	evt->mult = div_sc(rate, NSEC_PER_SEC, evt->shift);
-	evt->max_delta_ns = clockevent_delta2ns(0xffffffff, evt);
-	evt->min_delta_ns = clockevent_delta2ns(0xf, evt);
 
 	setup_irq(irq, &sp804_timer_irq);
-	clockevents_register_device(evt);
+	clockevents_config_and_register(evt, rate, 0xf, 0xffffffff);
 }

arch/arm/common/vic.c

@@ -19,17 +19,22 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include <linux/export.h>
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/io.h>
+#include <linux/irqdomain.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/syscore_ops.h>
 #include <linux/device.h>
 #include <linux/amba/bus.h>
 
+#include <asm/exception.h>
 #include <asm/mach/irq.h>
 #include <asm/hardware/vic.h>
 
-#ifdef CONFIG_PM
 /**
  * struct vic_device - VIC PM device
  * @irq: The IRQ number for the base of the VIC.
@@ -40,6 +45,7 @@
  * @int_enable: Save for VIC_INT_ENABLE.
  * @soft_int: Save for VIC_INT_SOFT.
  * @protect: Save for VIC_PROTECT.
+ * @domain: The IRQ domain for the VIC.
  */
 struct vic_device {
 	void __iomem	*base;
@@ -50,13 +56,13 @@ struct vic_device {
 	u32		int_enable;
 	u32		soft_int;
 	u32		protect;
+	struct irq_domain domain;
 };
 
 /* we cannot allocate memory when VICs are initially registered */
 static struct vic_device vic_devices[CONFIG_ARM_VIC_NR];
 
 static int vic_id;
-#endif /* CONFIG_PM */
 
 /**
  * vic_init2 - common initialisation code
@@ -156,39 +162,50 @@ static int __init vic_pm_init(void)
 	return 0;
 }
 late_initcall(vic_pm_init);
+#endif /* CONFIG_PM */
 
 /**
- * vic_pm_register - Register a VIC for later power management control
+ * vic_register() - Register a VIC.
  * @base: The base address of the VIC.
  * @irq: The base IRQ for the VIC.
  * @resume_sources: bitmask of interrupts allowed for resume sources.
+ * @node: The device tree node associated with the VIC.
  *
  * Register the VIC with the system device tree so that it can be notified
  * of suspend and resume requests and ensure that the correct actions are
  * taken to re-instate the settings on resume.
+ *
+ * This also configures the IRQ domain for the VIC.
  */
-static void __init vic_pm_register(void __iomem *base, unsigned int irq, u32 resume_sources)
+static void __init vic_register(void __iomem *base, unsigned int irq,
+				u32 resume_sources, struct device_node *node)
 {
 	struct vic_device *v;
 
-	if (vic_id >= ARRAY_SIZE(vic_devices))
+	if (vic_id >= ARRAY_SIZE(vic_devices)) {
 		printk(KERN_ERR "%s: too few VICs, increase CONFIG_ARM_VIC_NR\n", __func__);
-	else {
-		v = &vic_devices[vic_id];
-		v->base = base;
-		v->resume_sources = resume_sources;
-		v->irq = irq;
-		vic_id++;
+		return;
 	}
+
+	v = &vic_devices[vic_id];
+	v->base = base;
+	v->resume_sources = resume_sources;
+	v->irq = irq;
+	vic_id++;
+
+	v->domain.irq_base = irq;
+	v->domain.nr_irq = 32;
+#ifdef CONFIG_OF_IRQ
+	v->domain.of_node = of_node_get(node);
+#endif /* CONFIG_OF */
+	v->domain.ops = &irq_domain_simple_ops;
+	irq_domain_add(&v->domain);
 }
-#else
-static inline void vic_pm_register(void __iomem *base, unsigned int irq, u32 arg1) { }
-#endif /* CONFIG_PM */
 
 static void vic_ack_irq(struct irq_data *d)
 {
 	void __iomem *base = irq_data_get_irq_chip_data(d);
-	unsigned int irq = d->irq & 31;
+	unsigned int irq = d->hwirq;
 	writel(1 << irq, base + VIC_INT_ENABLE_CLEAR);
 	/* moreover, clear the soft-triggered, in case it was the reason */
 	writel(1 << irq, base + VIC_INT_SOFT_CLEAR);
@@ -197,14 +214,14 @@ static void vic_ack_irq(struct irq_data *d)
 static void vic_mask_irq(struct irq_data *d)
 {
 	void __iomem *base = irq_data_get_irq_chip_data(d);
-	unsigned int irq = d->irq & 31;
+	unsigned int irq = d->hwirq;
 	writel(1 << irq, base + VIC_INT_ENABLE_CLEAR);
 }
 
 static void vic_unmask_irq(struct irq_data *d)
 {
 	void __iomem *base = irq_data_get_irq_chip_data(d);
-	unsigned int irq = d->irq & 31;
+	unsigned int irq = d->hwirq;
 	writel(1 << irq, base + VIC_INT_ENABLE);
 }
 
@@ -226,7 +243,7 @@ static struct vic_device *vic_from_irq(unsigned int irq)
 static int vic_set_wake(struct irq_data *d, unsigned int on)
 {
 	struct vic_device *v = vic_from_irq(d->irq);
-	unsigned int off = d->irq & 31;
+	unsigned int off = d->hwirq;
 	u32 bit = 1 << off;
 
 	if (!v)
@@ -301,7 +318,7 @@ static void __init vic_set_irq_sources(void __iomem *base,
  *  and 020 within the page. We call this "second block".
  */
 static void __init vic_init_st(void __iomem *base, unsigned int irq_start,
-				u32 vic_sources)
+			       u32 vic_sources, struct device_node *node)
 {
 	unsigned int i;
 	int vic_2nd_block = ((unsigned long)base & ~PAGE_MASK) != 0;
@@ -328,17 +345,12 @@ static void __init vic_init_st(void __iomem *base, unsigned int irq_start,
 	}
 
 	vic_set_irq_sources(base, irq_start, vic_sources);
+	vic_register(base, irq_start, 0, node);
 }
 
-/**
- * vic_init - initialise a vectored interrupt controller
- * @base: iomem base address
- * @irq_start: starting interrupt number, must be muliple of 32
- * @vic_sources: bitmask of interrupt sources to allow
- * @resume_sources: bitmask of interrupt sources to allow for resume
- */
-void __init vic_init(void __iomem *base, unsigned int irq_start,
-		     u32 vic_sources, u32 resume_sources)
+static void __init __vic_init(void __iomem *base, unsigned int irq_start,
+			      u32 vic_sources, u32 resume_sources,
+			      struct device_node *node)
 {
 	unsigned int i;
 	u32 cellid = 0;
@@ -356,7 +368,7 @@ void __init vic_init(void __iomem *base, unsigned int irq_start,
 
 	switch(vendor) {
 	case AMBA_VENDOR_ST:
-		vic_init_st(base, irq_start, vic_sources);
+		vic_init_st(base, irq_start, vic_sources, node);
 		return;
 	default:
 		printk(KERN_WARNING "VIC: unknown vendor, continuing anyways\n");
@@ -375,5 +387,81 @@ void __init vic_init(void __iomem *base, unsigned int irq_start,
 
 	vic_set_irq_sources(base, irq_start, vic_sources);
 
-	vic_pm_register(base, irq_start, resume_sources);
+	vic_register(base, irq_start, resume_sources, node);
+}
+
+/**
+ * vic_init() - initialise a vectored interrupt controller
+ * @base: iomem base address
+ * @irq_start: starting interrupt number, must be muliple of 32
+ * @vic_sources: bitmask of interrupt sources to allow
+ * @resume_sources: bitmask of interrupt sources to allow for resume
+ */
+void __init vic_init(void __iomem *base, unsigned int irq_start,
+		     u32 vic_sources, u32 resume_sources)
+{
+	__vic_init(base, irq_start, vic_sources, resume_sources, NULL);
+}
+
+#ifdef CONFIG_OF
+int __init vic_of_init(struct device_node *node, struct device_node *parent)
+{
+	void __iomem *regs;
+	int irq_base;
+
+	if (WARN(parent, "non-root VICs are not supported"))
+		return -EINVAL;
+
+	regs = of_iomap(node, 0);
+	if (WARN_ON(!regs))
+		return -EIO;
+
+	irq_base = irq_alloc_descs(-1, 0, 32, numa_node_id());
+	if (WARN_ON(irq_base < 0))
+		goto out_unmap;
+
+	__vic_init(regs, irq_base, ~0, ~0, node);
+
+	return 0;
+
+ out_unmap:
+	iounmap(regs);
+
+	return -EIO;
+}
+#endif /* CONFIG OF */
+
+/*
+ * Handle each interrupt in a single VIC.  Returns non-zero if we've
+ * handled at least one interrupt.  This does a single read of the
+ * status register and handles all interrupts in order from LSB first.
+ */
+static int handle_one_vic(struct vic_device *vic, struct pt_regs *regs)
+{
+	u32 stat, irq;
+	int handled = 0;
+
+	stat = readl_relaxed(vic->base + VIC_IRQ_STATUS);
+	while (stat) {
+		irq = ffs(stat) - 1;
+		handle_IRQ(irq_domain_to_irq(&vic->domain, irq), regs);
+		stat &= ~(1 << irq);
+		handled = 1;
+	}
+
+	return handled;
+}
+
+/*
+ * Keep iterating over all registered VIC's until there are no pending
+ * interrupts.
+ */
+asmlinkage void __exception_irq_entry vic_handle_irq(struct pt_regs *regs)
+{
+	int i, handled;
+
+	do {
+		for (i = 0, handled = 0; i < vic_id; ++i)
+			handled |= handle_one_vic(&vic_devices[i], regs);
+	} while (handled);
 }

arch/arm/configs/at91cap9adk_defconfig → arch/arm/configs/at91cap9_defconfig

@@ -38,7 +38,6 @@ CONFIG_IP_PNP_RARP=y
 # CONFIG_IPV6 is not set
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
 CONFIG_MTD_CMDLINE_PARTS=y
 CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
@@ -52,16 +51,12 @@ CONFIG_MTD_NAND_ATMEL=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=8192
-CONFIG_ATMEL_SSC=y
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_SCSI_MULTI_LUN=y
 CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
 CONFIG_MII=y
 CONFIG_MACB=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 # CONFIG_INPUT_MOUSEDEV_PSAUX is not set
 CONFIG_INPUT_EVDEV=y
 # CONFIG_INPUT_KEYBOARD is not set
@@ -81,7 +76,6 @@ CONFIG_WATCHDOG=y
 CONFIG_WATCHDOG_NOWAYOUT=y
 CONFIG_FB=y
 CONFIG_FB_ATMEL=y
-# CONFIG_VGA_CONSOLE is not set
 CONFIG_LOGO=y
 # CONFIG_LOGO_LINUX_MONO is not set
 # CONFIG_LOGO_LINUX_CLUT224 is not set
@@ -99,7 +93,6 @@ CONFIG_MMC_AT91=m
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_AT91SAM9=y
 CONFIG_EXT2_FS=y
-CONFIG_INOTIFY=y
 CONFIG_VFAT_FS=y
 CONFIG_TMPFS=y
 CONFIG_JFFS2_FS=y

arch/arm/configs/at91rm9200_defconfig

@@ -5,7 +5,6 @@ CONFIG_SYSVIPC=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
-CONFIG_SYSFS_DEPRECATED_V2=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_MODULES=y
 CONFIG_MODULE_FORCE_LOAD=y
@@ -56,7 +55,6 @@ CONFIG_IP_PNP=y
 CONFIG_IP_PNP_DHCP=y
 CONFIG_IP_PNP_BOOTP=y
 CONFIG_NET_IPIP=m
-CONFIG_NET_IPGRE=m
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
 CONFIG_INET_IPCOMP=m
@@ -75,18 +73,8 @@ CONFIG_IPV6_TUNNEL=m
 CONFIG_BRIDGE=m
 CONFIG_VLAN_8021Q=m
 CONFIG_BT=m
-CONFIG_BT_L2CAP=m
-CONFIG_BT_SCO=m
-CONFIG_BT_RFCOMM=m
-CONFIG_BT_RFCOMM_TTY=y
-CONFIG_BT_BNEP=m
-CONFIG_BT_BNEP_MC_FILTER=y
-CONFIG_BT_BNEP_PROTO_FILTER=y
-CONFIG_BT_HIDP=m
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
 CONFIG_MTD_CMDLINE_PARTS=y
 CONFIG_MTD_AFS_PARTS=y
 CONFIG_MTD_CHAR=y
@@ -108,8 +96,6 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_NBD=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=8192
-CONFIG_ATMEL_TCLIB=y
-CONFIG_EEPROM_LEGACY=m
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_BLK_DEV_SR=m
@@ -119,14 +105,23 @@ CONFIG_SCSI_MULTI_LUN=y
 # CONFIG_SCSI_LOWLEVEL is not set
 CONFIG_NETDEVICES=y
 CONFIG_TUN=m
+CONFIG_ARM_AT91_ETHER=y
 CONFIG_PHYLIB=y
 CONFIG_DAVICOM_PHY=y
 CONFIG_SMSC_PHY=y
 CONFIG_MICREL_PHY=y
-CONFIG_NET_ETHERNET=y
-CONFIG_ARM_AT91_ETHER=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
+CONFIG_PPP=y
+CONFIG_PPP_BSDCOMP=y
+CONFIG_PPP_DEFLATE=y
+CONFIG_PPP_FILTER=y
+CONFIG_PPP_MPPE=m
+CONFIG_PPP_MULTILINK=y
+CONFIG_PPPOE=m
+CONFIG_PPP_ASYNC=y
+CONFIG_SLIP=m
+CONFIG_SLIP_COMPRESSED=y
+CONFIG_SLIP_SMART=y
+CONFIG_SLIP_MODE_SLIP6=y
 CONFIG_USB_CATC=m
 CONFIG_USB_KAWETH=m
 CONFIG_USB_PEGASUS=m
@@ -139,18 +134,6 @@ CONFIG_USB_NET_RNDIS_HOST=m
 CONFIG_USB_ALI_M5632=y
 CONFIG_USB_AN2720=y
 CONFIG_USB_EPSON2888=y
-CONFIG_PPP=y
-CONFIG_PPP_MULTILINK=y
-CONFIG_PPP_FILTER=y
-CONFIG_PPP_ASYNC=y
-CONFIG_PPP_DEFLATE=y
-CONFIG_PPP_BSDCOMP=y
-CONFIG_PPP_MPPE=m
-CONFIG_PPPOE=m
-CONFIG_SLIP=m
-CONFIG_SLIP_COMPRESSED=y
-CONFIG_SLIP_SMART=y
-CONFIG_SLIP_MODE_SLIP6=y
 # CONFIG_INPUT_MOUSEDEV_PSAUX is not set
 CONFIG_INPUT_MOUSEDEV_SCREEN_X=640
 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=480
@@ -158,9 +141,9 @@ CONFIG_INPUT_EVDEV=y
 CONFIG_KEYBOARD_GPIO=y
 # CONFIG_INPUT_MOUSE is not set
 CONFIG_INPUT_TOUCHSCREEN=y
+CONFIG_LEGACY_PTY_COUNT=32
 CONFIG_SERIAL_ATMEL=y
 CONFIG_SERIAL_ATMEL_CONSOLE=y
-CONFIG_LEGACY_PTY_COUNT=32
 CONFIG_HW_RANDOM=y
 CONFIG_I2C=y
 CONFIG_I2C_CHARDEV=y
@@ -290,7 +273,6 @@ CONFIG_NFS_V3_ACL=y
 CONFIG_NFS_V4=y
 CONFIG_ROOT_NFS=y
 CONFIG_NFSD=y
-CONFIG_SMB_FS=m
 CONFIG_CIFS=m
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_MAC_PARTITION=y
@@ -335,7 +317,6 @@ CONFIG_NLS_UTF8=y
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_FS=y
 CONFIG_DEBUG_KERNEL=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 # CONFIG_FTRACE is not set
 CONFIG_CRYPTO_PCBC=y
 CONFIG_CRYPTO_SHA1=y

arch/arm/configs/at91sam9260ek_defconfig → arch/arm/configs/at91sam9260_defconfig

@@ -12,11 +12,23 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_IOSCHED_CFQ is not set
 CONFIG_ARCH_AT91=y
 CONFIG_ARCH_AT91SAM9260=y
+CONFIG_ARCH_AT91SAM9260_SAM9XE=y
 CONFIG_MACH_AT91SAM9260EK=y
+CONFIG_MACH_CAM60=y
+CONFIG_MACH_SAM9_L9260=y
+CONFIG_MACH_AFEB9260=y
+CONFIG_MACH_USB_A9260=y
+CONFIG_MACH_QIL_A9260=y
+CONFIG_MACH_CPU9260=y
+CONFIG_MACH_FLEXIBITY=y
+CONFIG_MACH_SNAPPER_9260=y
+CONFIG_MACH_AT91SAM_DT=y
 CONFIG_AT91_PROGRAMMABLE_CLOCKS=y
 # CONFIG_ARM_THUMB is not set
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_ARM_APPENDED_DTB=y
+CONFIG_ARM_ATAG_DTB_COMPAT=y
 CONFIG_CMDLINE="mem=64M console=ttyS0,115200 initrd=0x21100000,3145728 root=/dev/ram0 rw"
 CONFIG_FPE_NWFPE=y
 CONFIG_NET=y
@@ -33,12 +45,10 @@ CONFIG_IP_PNP_BOOTP=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=8192
-CONFIG_ATMEL_SSC=y
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_SCSI_MULTI_LUN=y
 CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
 CONFIG_MII=y
 CONFIG_MACB=y
 # CONFIG_INPUT_MOUSEDEV_PSAUX is not set
@@ -55,7 +65,6 @@ CONFIG_I2C_GPIO=y
 CONFIG_WATCHDOG=y
 CONFIG_WATCHDOG_NOWAYOUT=y
 CONFIG_AT91SAM9X_WATCHDOG=y
-# CONFIG_VGA_CONSOLE is not set
 # CONFIG_USB_HID is not set
 CONFIG_USB=y
 CONFIG_USB_DEVICEFS=y
@@ -71,7 +80,6 @@ CONFIG_USB_G_SERIAL=m
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_AT91SAM9=y
 CONFIG_EXT2_FS=y
-CONFIG_INOTIFY=y
 CONFIG_VFAT_FS=y
 CONFIG_TMPFS=y
 CONFIG_CRAMFS=y

arch/arm/configs/at91sam9g20ek_defconfig → arch/arm/configs/at91sam9g20_defconfig

@@ -14,6 +14,15 @@ CONFIG_ARCH_AT91=y
 CONFIG_ARCH_AT91SAM9G20=y
 CONFIG_MACH_AT91SAM9G20EK=y
 CONFIG_MACH_AT91SAM9G20EK_2MMC=y
+CONFIG_MACH_CPU9G20=y
+CONFIG_MACH_ACMENETUSFOXG20=y
+CONFIG_MACH_PORTUXG20=y
+CONFIG_MACH_STAMP9G20=y
+CONFIG_MACH_PCONTROL_G20=y
+CONFIG_MACH_GSIA18S=y
+CONFIG_MACH_USB_A9G20=y
+CONFIG_MACH_SNAPPER_9260=y
+CONFIG_MACH_AT91SAM_DT=y
 CONFIG_AT91_PROGRAMMABLE_CLOCKS=y
 # CONFIG_ARM_THUMB is not set
 CONFIG_AEABI=y
@@ -21,9 +30,10 @@ CONFIG_LEDS=y
 CONFIG_LEDS_CPU=y
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_ARM_APPENDED_DTB=y
+CONFIG_ARM_ATAG_DTB_COMPAT=y
 CONFIG_CMDLINE="mem=64M console=ttyS0,115200 initrd=0x21100000,3145728 root=/dev/ram0 rw"
 CONFIG_FPE_NWFPE=y
-CONFIG_PM=y
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
@@ -37,8 +47,6 @@ CONFIG_IP_PNP_BOOTP=y
 # CONFIG_IPV6 is not set
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
 CONFIG_MTD_CMDLINE_PARTS=y
 CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
@@ -48,17 +56,13 @@ CONFIG_MTD_NAND_ATMEL=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=8192
-CONFIG_ATMEL_SSC=y
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_SCSI_MULTI_LUN=y
 # CONFIG_SCSI_LOWLEVEL is not set
 CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
 CONFIG_MII=y
 CONFIG_MACB=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 # CONFIG_INPUT_MOUSEDEV_PSAUX is not set
 CONFIG_INPUT_MOUSEDEV_SCREEN_X=320
 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=240
@@ -66,15 +70,14 @@ CONFIG_INPUT_EVDEV=y
 # CONFIG_KEYBOARD_ATKBD is not set
 CONFIG_KEYBOARD_GPIO=y
 # CONFIG_INPUT_MOUSE is not set
+CONFIG_LEGACY_PTY_COUNT=16
 CONFIG_SERIAL_ATMEL=y
 CONFIG_SERIAL_ATMEL_CONSOLE=y
-CONFIG_LEGACY_PTY_COUNT=16
 CONFIG_HW_RANDOM=y
 CONFIG_SPI=y
 CONFIG_SPI_ATMEL=y
 CONFIG_SPI_SPIDEV=y
 # CONFIG_HWMON is not set
-# CONFIG_VGA_CONSOLE is not set
 CONFIG_SOUND=y
 CONFIG_SND=y
 CONFIG_SND_SEQUENCER=y
@@ -82,7 +85,6 @@ CONFIG_SND_MIXER_OSS=y
 CONFIG_SND_PCM_OSS=y
 CONFIG_SND_SEQUENCER_OSS=y
 # CONFIG_SND_VERBOSE_PROCFS is not set
-CONFIG_SND_AT73C213=y
 CONFIG_USB=y
 CONFIG_USB_DEVICEFS=y
 # CONFIG_USB_DEVICE_CLASS is not set
@@ -105,7 +107,6 @@ CONFIG_LEDS_TRIGGER_HEARTBEAT=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_AT91SAM9=y
 CONFIG_EXT2_FS=y
-CONFIG_INOTIFY=y
 CONFIG_MSDOS_FS=y
 CONFIG_VFAT_FS=y
 CONFIG_TMPFS=y

arch/arm/configs/at91sam9g45_defconfig

@@ -18,6 +18,7 @@ CONFIG_MODULE_UNLOAD=y
 CONFIG_ARCH_AT91=y
 CONFIG_ARCH_AT91SAM9G45=y
 CONFIG_MACH_AT91SAM9M10G45EK=y
+CONFIG_MACH_AT91SAM_DT=y
 CONFIG_AT91_PROGRAMMABLE_CLOCKS=y
 CONFIG_AT91_SLOW_CLOCK=y
 CONFIG_AEABI=y
@@ -73,11 +74,8 @@ CONFIG_SCSI_MULTI_LUN=y
 # CONFIG_SCSI_LOWLEVEL is not set
 CONFIG_NETDEVICES=y
 CONFIG_MII=y
-CONFIG_DAVICOM_PHY=y
-CONFIG_NET_ETHERNET=y
 CONFIG_MACB=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
+CONFIG_DAVICOM_PHY=y
 CONFIG_LIBERTAS_THINFIRM=m
 CONFIG_LIBERTAS_THINFIRM_USB=m
 CONFIG_AT76C50X_USB=m
@@ -131,7 +129,6 @@ CONFIG_I2C_GPIO=y
 CONFIG_SPI=y
 CONFIG_SPI_ATMEL=y
 # CONFIG_HWMON is not set
-# CONFIG_MFD_SUPPORT is not set
 CONFIG_FB=y
 CONFIG_FB_ATMEL=y
 CONFIG_FB_UDL=m

arch/arm/configs/at91sam9rlek_defconfig → arch/arm/configs/at91sam9rl_defconfig

@@ -23,8 +23,6 @@ CONFIG_NET=y
 CONFIG_UNIX=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
 CONFIG_MTD_CMDLINE_PARTS=y
 CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
@@ -35,7 +33,6 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=4
 CONFIG_BLK_DEV_RAM_SIZE=24576
-CONFIG_ATMEL_SSC=y
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_SCSI_MULTI_LUN=y
@@ -62,13 +59,11 @@ CONFIG_WATCHDOG_NOWAYOUT=y
 CONFIG_AT91SAM9X_WATCHDOG=y
 CONFIG_FB=y
 CONFIG_FB_ATMEL=y
-# CONFIG_VGA_CONSOLE is not set
 CONFIG_MMC=y
 CONFIG_MMC_AT91=m
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_AT91SAM9=y
 CONFIG_EXT2_FS=y
-CONFIG_INOTIFY=y
 CONFIG_MSDOS_FS=y
 CONFIG_VFAT_FS=y
 CONFIG_TMPFS=y

arch/arm/configs/ezx_defconfig

@@ -287,7 +287,7 @@ CONFIG_USB=y
 # CONFIG_USB_DEVICE_CLASS is not set
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_GADGET=y
-CONFIG_USB_GADGET_PXA27X=y
+CONFIG_USB_PXA27X=y
 CONFIG_USB_ETH=m
 # CONFIG_USB_ETH_RNDIS is not set
 CONFIG_MMC=y

arch/arm/configs/imote2_defconfig

@@ -263,7 +263,7 @@ CONFIG_USB=y
 # CONFIG_USB_DEVICE_CLASS is not set
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_GADGET=y
-CONFIG_USB_GADGET_PXA27X=y
+CONFIG_USB_PXA27X=y
 CONFIG_USB_ETH=m
 # CONFIG_USB_ETH_RNDIS is not set
 CONFIG_MMC=y

arch/arm/configs/imx_v4_v5_defconfig

@@ -18,9 +18,10 @@ CONFIG_ARCH_MXC=y
 CONFIG_ARCH_IMX_V4_V5=y
 CONFIG_ARCH_MX1ADS=y
 CONFIG_MACH_SCB9328=y
+CONFIG_MACH_APF9328=y
 CONFIG_MACH_MX21ADS=y
 CONFIG_MACH_MX25_3DS=y
-CONFIG_MACH_EUKREA_CPUIMX25=y
+CONFIG_MACH_EUKREA_CPUIMX25SD=y
 CONFIG_MACH_MX27ADS=y
 CONFIG_MACH_PCM038=y
 CONFIG_MACH_CPUIMX27=y
@@ -72,17 +73,16 @@ CONFIG_MTD_CFI_GEOMETRY=y
 CONFIG_MTD_CFI_INTELEXT=y
 CONFIG_MTD_PHYSMAP=y
 CONFIG_MTD_NAND=y
+CONFIG_MTD_NAND_MXC=y
 CONFIG_MTD_UBI=y
 CONFIG_MISC_DEVICES=y
 CONFIG_EEPROM_AT24=y
 CONFIG_EEPROM_AT25=y
 CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
-CONFIG_SMC91X=y
 CONFIG_DM9000=y
+CONFIG_SMC91X=y
 CONFIG_SMC911X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
+CONFIG_SMSC_PHY=y
 # CONFIG_INPUT_MOUSEDEV is not set
 CONFIG_INPUT_EVDEV=y
 # CONFIG_INPUT_KEYBOARD is not set
@@ -100,6 +100,7 @@ CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_IMX=y
 CONFIG_SPI=y
 CONFIG_SPI_IMX=y
+CONFIG_SPI_SPIDEV=y
 CONFIG_W1=y
 CONFIG_W1_MASTER_MXC=y
 CONFIG_W1_SLAVE_THERM=y
@@ -139,6 +140,7 @@ CONFIG_MMC=y
 CONFIG_MMC_MXC=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_GPIO=y
 CONFIG_LEDS_MC13783=y
 CONFIG_LEDS_TRIGGERS=y
 CONFIG_LEDS_TRIGGER_TIMER=y

arch/arm/configs/magician_defconfig

@@ -132,7 +132,7 @@ CONFIG_USB_MON=m
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_VBUS_DRAW=500
-CONFIG_USB_GADGET_PXA27X=y
+CONFIG_USB_PXA27X=y
 CONFIG_USB_ETH=m
 # CONFIG_USB_ETH_RNDIS is not set
 CONFIG_USB_GADGETFS=m

arch/arm/configs/omap1_defconfig

@@ -48,13 +48,7 @@ CONFIG_MACH_SX1=y
 CONFIG_MACH_NOKIA770=y
 CONFIG_MACH_AMS_DELTA=y
 CONFIG_MACH_OMAP_GENERIC=y
-CONFIG_OMAP_CLOCKS_SET_BY_BOOTLOADER=y
-CONFIG_OMAP_ARM_216MHZ=y
-CONFIG_OMAP_ARM_195MHZ=y
-CONFIG_OMAP_ARM_192MHZ=y
 CONFIG_OMAP_ARM_182MHZ=y
-CONFIG_OMAP_ARM_168MHZ=y
-# CONFIG_OMAP_ARM_60MHZ is not set
 # CONFIG_ARM_THUMB is not set
 CONFIG_PCCARD=y
 CONFIG_OMAP_CF=y

arch/arm/configs/u300_defconfig

@@ -14,8 +14,6 @@ CONFIG_MODULE_UNLOAD=y
 CONFIG_ARCH_U300=y
 CONFIG_MACH_U300=y
 CONFIG_MACH_U300_BS335=y
-CONFIG_MACH_U300_DUAL_RAM=y
-CONFIG_U300_DEBUG=y
 CONFIG_MACH_U300_SPIDUMMY=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
@@ -26,19 +24,21 @@ CONFIG_ZBOOT_ROM_BSS=0x0
 CONFIG_CMDLINE="root=/dev/ram0 rw rootfstype=rootfs console=ttyAMA0,115200n8 lpj=515072"
 CONFIG_CPU_IDLE=y
 CONFIG_FPE_NWFPE=y
-CONFIG_PM=y
 # CONFIG_SUSPEND is not set
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
-# CONFIG_MISC_DEVICES is not set
+CONFIG_MTD=y
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_NAND=y
+CONFIG_MTD_NAND_FSMC=y
 # CONFIG_INPUT_MOUSEDEV is not set
 CONFIG_INPUT_EVDEV=y
 # CONFIG_KEYBOARD_ATKBD is not set
 # CONFIG_INPUT_MOUSE is not set
 # CONFIG_SERIO is not set
+CONFIG_LEGACY_PTY_COUNT=16
 CONFIG_SERIAL_AMBA_PL011=y
 CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
-CONFIG_LEGACY_PTY_COUNT=16
 # CONFIG_HW_RANDOM is not set
 CONFIG_I2C=y
 # CONFIG_HWMON is not set
@@ -51,6 +51,7 @@ CONFIG_BACKLIGHT_CLASS_DEVICE=y
 # CONFIG_HID_SUPPORT is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_MMC=y
+CONFIG_MMC_CLKGATE=y
 CONFIG_MMC_ARMMMCI=y
 CONFIG_RTC_CLASS=y
 # CONFIG_RTC_HCTOSYS is not set
@@ -65,10 +66,8 @@ CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_ISO8859_1=y
 CONFIG_PRINTK_TIME=y
 CONFIG_DEBUG_FS=y
-CONFIG_DEBUG_KERNEL=y
 # CONFIG_SCHED_DEBUG is not set
 CONFIG_TIMER_STATS=y
 # CONFIG_DEBUG_PREEMPT is not set
 CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 # CONFIG_CRC32 is not set

arch/arm/configs/u8500_defconfig

@@ -10,7 +10,7 @@ CONFIG_MODULE_UNLOAD=y
 CONFIG_ARCH_U8500=y
 CONFIG_UX500_SOC_DB5500=y
 CONFIG_UX500_SOC_DB8500=y
-CONFIG_MACH_U8500=y
+CONFIG_MACH_HREFV60=y
 CONFIG_MACH_SNOWBALL=y
 CONFIG_MACH_U5500=y
 CONFIG_NO_HZ=y
@@ -24,6 +24,7 @@ CONFIG_CPU_FREQ=y
 CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
 CONFIG_VFP=y
 CONFIG_NEON=y
+CONFIG_PM_RUNTIME=y
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
@@ -41,11 +42,8 @@ CONFIG_MISC_DEVICES=y
 CONFIG_AB8500_PWM=y
 CONFIG_SENSORS_BH1780=y
 CONFIG_NETDEVICES=y
-CONFIG_SMSC_PHY=y
-CONFIG_NET_ETHERNET=y
 CONFIG_SMSC911X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
+CONFIG_SMSC_PHY=y
 # CONFIG_WLAN is not set
 # CONFIG_INPUT_MOUSEDEV_PSAUX is not set
 CONFIG_INPUT_EVDEV=y
@@ -72,15 +70,12 @@ CONFIG_SPI=y
 CONFIG_SPI_PL022=y
 CONFIG_GPIO_STMPE=y
 CONFIG_GPIO_TC3589X=y
-# CONFIG_HWMON is not set
 CONFIG_MFD_STMPE=y
 CONFIG_MFD_TC3589X=y
+CONFIG_AB5500_CORE=y
 CONFIG_AB8500_CORE=y
 CONFIG_REGULATOR_AB8500=y
 # CONFIG_HID_SUPPORT is not set
-CONFIG_USB_MUSB_HDRC=y
-CONFIG_USB_GADGET_MUSB_HDRC=y
-CONFIG_MUSB_PIO_ONLY=y
 CONFIG_USB_GADGET=y
 CONFIG_AB8500_USB=y
 CONFIG_MMC=y
@@ -97,6 +92,7 @@ CONFIG_DMADEVICES=y
 CONFIG_STE_DMA40=y
 CONFIG_STAGING=y
 CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4=y
+CONFIG_HSEM_U8500=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT2_FS_XATTR=y
 CONFIG_EXT2_FS_POSIX_ACL=y

arch/arm/configs/zeus_defconfig

@@ -140,7 +140,7 @@ CONFIG_USB_SERIAL=m
 CONFIG_USB_SERIAL_GENERIC=y
 CONFIG_USB_SERIAL_MCT_U232=m
 CONFIG_USB_GADGET=m
-CONFIG_USB_GADGET_PXA27X=y
+CONFIG_USB_PXA27X=y
 CONFIG_USB_ETH=m
 CONFIG_USB_GADGETFS=m
 CONFIG_USB_FILE_STORAGE=m

arch/arm/include/asm/assembler.h

@@ -186,6 +186,17 @@
 #define ALT_UP_B(label) b label
 #endif
 
+/*
+ * Instruction barrier
+ */
+	.macro	instr_sync
+#if __LINUX_ARM_ARCH__ >= 7
+	isb
+#elif __LINUX_ARM_ARCH__ == 6
+	mcr	p15, 0, r0, c7, c5, 4
+#endif
+	.endm
+
 /*
  * SMP data memory barrier
  */

arch/arm/include/asm/bug.h

@@ -32,7 +32,6 @@
 
 #define __BUG(__file, __line, __value)				\
 do {								\
-	BUILD_BUG_ON(sizeof(struct bug_entry) != 12);		\
 	asm volatile("1:\t" BUG_INSTR_TYPE #__value "\n"	\
 		".pushsection .rodata.str, \"aMS\", %progbits, 1\n" \
 		"2:\t.asciz " #__file "\n" 			\

arch/arm/include/asm/cti.h

@@ -0,0 +1,179 @@
+#ifndef __ASMARM_CTI_H
+#define __ASMARM_CTI_H
+
+#include	<asm/io.h>
+
+/* The registers' definition is from section 3.2 of
+ * Embedded Cross Trigger Revision: r0p0
+ */
+#define		CTICONTROL		0x000
+#define		CTISTATUS		0x004
+#define		CTILOCK			0x008
+#define		CTIPROTECTION		0x00C
+#define		CTIINTACK		0x010
+#define		CTIAPPSET		0x014
+#define		CTIAPPCLEAR		0x018
+#define		CTIAPPPULSE		0x01c
+#define		CTIINEN			0x020
+#define		CTIOUTEN		0x0A0
+#define		CTITRIGINSTATUS		0x130
+#define		CTITRIGOUTSTATUS	0x134
+#define		CTICHINSTATUS		0x138
+#define		CTICHOUTSTATUS		0x13c
+#define		CTIPERIPHID0		0xFE0
+#define		CTIPERIPHID1		0xFE4
+#define		CTIPERIPHID2		0xFE8
+#define		CTIPERIPHID3		0xFEC
+#define		CTIPCELLID0		0xFF0
+#define		CTIPCELLID1		0xFF4
+#define		CTIPCELLID2		0xFF8
+#define		CTIPCELLID3		0xFFC
+
+/* The below are from section 3.6.4 of
+ * CoreSight v1.0 Architecture Specification
+ */
+#define		LOCKACCESS		0xFB0
+#define		LOCKSTATUS		0xFB4
+
+/* write this value to LOCKACCESS will unlock the module, and
+ * other value will lock the module
+ */
+#define		LOCKCODE		0xC5ACCE55
+
+/**
+ * struct cti - cross trigger interface struct
+ * @base: mapped virtual address for the cti base
+ * @irq: irq number for the cti
+ * @trig_out_for_irq: triger out number which will cause
+ *	the @irq happen
+ *
+ * cti struct used to operate cti registers.
+ */
+struct cti {
+	void __iomem *base;
+	int irq;
+	int trig_out_for_irq;
+};
+
+/**
+ * cti_init - initialize the cti instance
+ * @cti: cti instance
+ * @base: mapped virtual address for the cti base
+ * @irq: irq number for the cti
+ * @trig_out: triger out number which will cause
+ *	the @irq happen
+ *
+ * called by machine code to pass the board dependent
+ * @base, @irq and @trig_out to cti.
+ */
+static inline void cti_init(struct cti *cti,
+	void __iomem *base, int irq, int trig_out)
+{
+	cti->base = base;
+	cti->irq  = irq;
+	cti->trig_out_for_irq = trig_out;
+}
+
+/**
+ * cti_map_trigger - use the @chan to map @trig_in to @trig_out
+ * @cti: cti instance
+ * @trig_in: trigger in number
+ * @trig_out: trigger out number
+ * @channel: channel number
+ *
+ * This function maps one trigger in of @trig_in to one trigger
+ * out of @trig_out using the channel @chan.
+ */
+static inline void cti_map_trigger(struct cti *cti,
+	int trig_in, int trig_out, int chan)
+{
+	void __iomem *base = cti->base;
+	unsigned long val;
+
+	val = __raw_readl(base + CTIINEN + trig_in * 4);
+	val |= BIT(chan);
+	__raw_writel(val, base + CTIINEN + trig_in * 4);
+
+	val = __raw_readl(base + CTIOUTEN + trig_out * 4);
+	val |= BIT(chan);
+	__raw_writel(val, base + CTIOUTEN + trig_out * 4);
+}
+
+/**
+ * cti_enable - enable the cti module
+ * @cti: cti instance
+ *
+ * enable the cti module
+ */
+static inline void cti_enable(struct cti *cti)
+{
+	__raw_writel(0x1, cti->base + CTICONTROL);
+}
+
+/**
+ * cti_disable - disable the cti module
+ * @cti: cti instance
+ *
+ * enable the cti module
+ */
+static inline void cti_disable(struct cti *cti)
+{
+	__raw_writel(0, cti->base + CTICONTROL);
+}
+
+/**
+ * cti_irq_ack - clear the cti irq
+ * @cti: cti instance
+ *
+ * clear the cti irq
+ */
+static inline void cti_irq_ack(struct cti *cti)
+{
+	void __iomem *base = cti->base;
+	unsigned long val;
+
+	val = __raw_readl(base + CTIINTACK);
+	val |= BIT(cti->trig_out_for_irq);
+	__raw_writel(val, base + CTIINTACK);
+}
+
+/**
+ * cti_unlock - unlock cti module
+ * @cti: cti instance
+ *
+ * unlock the cti module, or else any writes to the cti
+ * module is not allowed.
+ */
+static inline void cti_unlock(struct cti *cti)
+{
+	void __iomem *base = cti->base;
+	unsigned long val;
+
+	val = __raw_readl(base + LOCKSTATUS);
+
+	if (val & 1) {
+		val = LOCKCODE;
+		__raw_writel(val, base + LOCKACCESS);
+	}
+}
+
+/**
+ * cti_lock - lock cti module
+ * @cti: cti instance
+ *
+ * lock the cti module, so any writes to the cti
+ * module will be not allowed.
+ */
+static inline void cti_lock(struct cti *cti)
+{
+	void __iomem *base = cti->base;
+	unsigned long val;
+
+	val = __raw_readl(base + LOCKSTATUS);
+
+	if (!(val & 1)) {
+		val = ~LOCKCODE;
+		__raw_writel(val, base + LOCKACCESS);
+	}
+}
+#endif

arch/arm/include/asm/edac.h

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2011 Calxeda, Inc.
+ * Based on PPC version Copyright 2007 MontaVista Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef ASM_EDAC_H
+#define ASM_EDAC_H
+/*
+ * ECC atomic, DMA, SMP and interrupt safe scrub function.
+ * Implements the per arch atomic_scrub() that EDAC use for software
+ * ECC scrubbing.  It reads memory and then writes back the original
+ * value, allowing the hardware to detect and correct memory errors.
+ */
+static inline void atomic_scrub(void *va, u32 size)
+{
+#if __LINUX_ARM_ARCH__ >= 6
+	unsigned int *virt_addr = va;
+	unsigned int temp, temp2;
+	unsigned int i;
+
+	for (i = 0; i < size / sizeof(*virt_addr); i++, virt_addr++) {
+		/* Very carefully read and write to memory atomically
+		 * so we are interrupt, DMA and SMP safe.
+		 */
+		__asm__ __volatile__("\n"
+			"1:	ldrex	%0, [%2]\n"
+			"	strex	%1, %0, [%2]\n"
+			"	teq	%1, #0\n"
+			"	bne	1b\n"
+			: "=&r"(temp), "=&r"(temp2)
+			: "r"(virt_addr)
+			: "cc");
+	}
+#endif
+}
+
+#endif

arch/arm/include/asm/entry-macro-vic2.S

@@ -1,57 +0,0 @@
-/* arch/arm/include/asm/entry-macro-vic2.S
- *
- * Originally arch/arm/mach-s3c6400/include/mach/entry-macro.S
- *
- * Copyright 2008 Openmoko, Inc.
- * Copyright 2008 Simtec Electronics
- *	http://armlinux.simtec.co.uk/
- *	Ben Dooks <ben@simtec.co.uk>
- *
- * Low-level IRQ helper macros for a device with two VICs
- *
- * This file is licensed under  the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
-*/
-
-/* This should be included from <mach/entry-macro.S> with the necessary
- * defines for virtual addresses and IRQ bases for the two vics.
- *
- * The code needs the following defined:
- *	IRQ_VIC0_BASE	IRQ number of VIC0's first IRQ
- *	IRQ_VIC1_BASE	IRQ number of VIC1's first IRQ
- *	VA_VIC0		Virtual address of VIC0
- *	VA_VIC1		Virtual address of VIC1
- *
- * Note, code assumes VIC0's virtual address is an ARM immediate constant
- * away from VIC1.
-*/
-
-#include <asm/hardware/vic.h>
-
-	.macro	disable_fiq
-	.endm
-
-	.macro	get_irqnr_preamble, base, tmp
-	ldr	\base, =VA_VIC0
-	.endm
-
-	.macro	arch_ret_to_user, tmp1, tmp2
-	.endm
-
-	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
-
-	@ check the vic0
-	mov	\irqnr, #IRQ_VIC0_BASE + 31
-	ldr	\irqstat, [ \base, # VIC_IRQ_STATUS ]
-	teq	\irqstat, #0
-
-	@ otherwise try vic1
-	addeq	\tmp, \base, #(VA_VIC1 - VA_VIC0)
-	addeq	\irqnr, \irqnr, #(IRQ_VIC1_BASE - IRQ_VIC0_BASE)
-	ldreq	\irqstat, [ \tmp, # VIC_IRQ_STATUS ]
-	teqeq	\irqstat, #0
-
-	clzne	\irqstat, \irqstat
-	subne	\irqnr, \irqnr, \irqstat
-	.endm

arch/arm/include/asm/gpio.h

@@ -1,6 +1,10 @@
 #ifndef _ARCH_ARM_GPIO_H
 #define _ARCH_ARM_GPIO_H
 
+#if CONFIG_ARCH_NR_GPIO > 0
+#define ARCH_NR_GPIO CONFIG_ARCH_NR_GPIO
+#endif
+
 /* not all ARM platforms necessarily support this API ... */
 #include <mach/gpio.h>