Merge commit origin/master into drm-intel-next

Conflicts are getting out of hand, and now we have to shuffle even
more in -next which was also shuffled in -fixes (the call for
drm_mode_config_reset needs to move yet again).

So do a proper backmerge. I wanted to wait with this for the 3.13
relaese, but alas let's just do this now.

Conflicts:
	drivers/gpu/drm/i915/i915_reg.h
	drivers/gpu/drm/i915/intel_ddi.c
	drivers/gpu/drm/i915/intel_display.c
	drivers/gpu/drm/i915/intel_pm.c

Besides the conflict around the forcewake get/put (where we chaged the
called function in -fixes and added a new parameter in -next) code all
the current conflicts are of the adjacent lines changed type.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

CREDITS

@@ -655,6 +655,11 @@ S: Stanford University
 S: Stanford, California 94305
 S: USA
 
+N: Carlos Chinea
+E: carlos.chinea@nokia.com
+E: cch.devel@gmail.com
+D: Author of HSI Subsystem
+
 N: Randolph Chung
 E: tausq@debian.org
 D: Linux/PA-RISC hacker

Documentation/DocBook/media/v4l/vidioc-expbuf.xml

@@ -73,7 +73,8 @@ range from zero to the maximal number of valid planes for the currently active
 format. For the single-planar API, applications must set <structfield> plane
 </structfield> to zero.  Additional flags may be posted in the <structfield>
 flags </structfield> field.  Refer to a manual for open() for details.
-Currently only O_CLOEXEC is supported.  All other fields must be set to zero.
+Currently only O_CLOEXEC, O_RDONLY, O_WRONLY, and O_RDWR are supported.  All
+other fields must be set to zero.
 In the case of multi-planar API, every plane is exported separately using
 multiple <constant> VIDIOC_EXPBUF </constant> calls. </para>
 
@@ -170,8 +171,9 @@ multi-planar API. Otherwise this value must be set to zero. </entry>
 	    <entry>__u32</entry>
 	    <entry><structfield>flags</structfield></entry>
 	    <entry>Flags for the newly created file, currently only <constant>
-O_CLOEXEC </constant> is supported, refer to the manual of open() for more
-details.</entry>
+O_CLOEXEC </constant>, <constant>O_RDONLY</constant>, <constant>O_WRONLY
+</constant>, and <constant>O_RDWR</constant> are supported, refer to the manual
+of open() for more details.</entry>
 	  </row>
 	  <row>
 	    <entry>__s32</entry>

Documentation/assoc_array.txt

@@ -164,10 +164,10 @@ This points to a number of methods, all of which need to be provided:
 
  (4) Diff the index keys of two objects.
 
-	int (*diff_objects)(const void *a, const void *b);
+	int (*diff_objects)(const void *object, const void *index_key);
 
-     Return the bit position at which the index keys of two objects differ or
-     -1 if they are the same.
+     Return the bit position at which the index key of the specified object
+     differs from the given index key or -1 if they are the same.
 
 
  (5) Free an object.

Documentation/block/null_blk.txt

@@ -0,0 +1,72 @@
+Null block device driver
+================================================================================
+
+I. Overview
+
+The null block device (/dev/nullb*) is used for benchmarking the various
+block-layer implementations. It emulates a block device of X gigabytes in size.
+The following instances are possible:
+
+  Single-queue block-layer
+    - Request-based.
+    - Single submission queue per device.
+    - Implements IO scheduling algorithms (CFQ, Deadline, noop).
+  Multi-queue block-layer
+    - Request-based.
+    - Configurable submission queues per device.
+  No block-layer (Known as bio-based)
+    - Bio-based. IO requests are submitted directly to the device driver.
+    - Directly accepts bio data structure and returns them.
+
+All of them have a completion queue for each core in the system.
+
+II. Module parameters applicable for all instances:
+
+queue_mode=[0-2]: Default: 2-Multi-queue
+  Selects which block-layer the module should instantiate with.
+
+  0: Bio-based.
+  1: Single-queue.
+  2: Multi-queue.
+
+home_node=[0--nr_nodes]: Default: NUMA_NO_NODE
+  Selects what CPU node the data structures are allocated from.
+
+gb=[Size in GB]: Default: 250GB
+  The size of the device reported to the system.
+
+bs=[Block size (in bytes)]: Default: 512 bytes
+  The block size reported to the system.
+
+nr_devices=[Number of devices]: Default: 2
+  Number of block devices instantiated. They are instantiated as /dev/nullb0,
+  etc.
+
+irq_mode=[0-2]: Default: 1-Soft-irq
+  The completion mode used for completing IOs to the block-layer.
+
+  0: None.
+  1: Soft-irq. Uses IPI to complete IOs across CPU nodes. Simulates the overhead
+     when IOs are issued from another CPU node than the home the device is
+     connected to.
+  2: Timer: Waits a specific period (completion_nsec) for each IO before
+     completion.
+
+completion_nsec=[ns]: Default: 10.000ns
+  Combined with irq_mode=2 (timer). The time each completion event must wait.
+
+submit_queues=[0..nr_cpus]:
+  The number of submission queues attached to the device driver. If unset, it
+  defaults to 1 on single-queue and bio-based instances. For multi-queue,
+  it is ignored when use_per_node_hctx module parameter is 1.
+
+hw_queue_depth=[0..qdepth]: Default: 64
+  The hardware queue depth of the device.
+
+III: Multi-queue specific parameters
+
+use_per_node_hctx=[0/1]: Default: 0
+  0: The number of submit queues are set to the value of the submit_queues
+     parameter.
+  1: The multi-queue block layer is instantiated with a hardware dispatch
+     queue for each CPU node in the system.

Documentation/device-mapper/cache.txt

@@ -266,10 +266,12 @@ E.g.
 Invalidation is removing an entry from the cache without writing it
 back.  Cache blocks can be invalidated via the invalidate_cblocks
 message, which takes an arbitrary number of cblock ranges.  Each cblock
-must be expressed as a decimal value, in the future a variant message
-that takes cblock ranges expressed in hexidecimal may be needed to
-better support efficient invalidation of larger caches.  The cache must
-be in passthrough mode when invalidate_cblocks is used.
+range's end value is "one past the end", meaning 5-10 expresses a range
+of values from 5 to 9.  Each cblock must be expressed as a decimal
+value, in the future a variant message that takes cblock ranges
+expressed in hexidecimal may be needed to better support efficient
+invalidation of larger caches.  The cache must be in passthrough mode
+when invalidate_cblocks is used.
 
    invalidate_cblocks [<cblock>|<cblock begin>-<cblock end>]*
 

Documentation/devicetree/bindings/clock/exynos5250-clock.txt

@@ -159,6 +159,8 @@ clock which they consume.
   mixer			343
   hdmi			344
   g2d			345
+  mdma0			346
+  smmu_mdma0		347
 
 
    [Clock Muxes]

Documentation/devicetree/bindings/net/davinci_emac.txt

@@ -4,7 +4,7 @@ This file provides information, what the device node
 for the davinci_emac interface contains.
 
 Required properties:
-- compatible: "ti,davinci-dm6467-emac";
+- compatible: "ti,davinci-dm6467-emac" or "ti,am3517-emac"
 - reg: Offset and length of the register set for the device
 - ti,davinci-ctrl-reg-offset: offset to control register
 - ti,davinci-ctrl-mod-reg-offset: offset to control module register

Documentation/devicetree/bindings/net/smsc-lan91c111.txt

@@ -8,3 +8,7 @@ Required properties:
 Optional properties:
 - phy-device : phandle to Ethernet phy
 - local-mac-address : Ethernet mac address to use
+- reg-io-width : Mask of sizes (in bytes) of the IO accesses that
+  are supported on the device.  Valid value for SMSC LAN91c111 are
+  1, 2 or 4.  If it's omitted or invalid, the size would be 2 meaning
+  16-bit access only.

Documentation/kernel-parameters.txt

@@ -1529,6 +1529,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
 			* atapi_dmadir: Enable ATAPI DMADIR bridge support
 
+			* disable: Disable this device.
+
 			If there are multiple matching configurations changing
 			the same attribute, the last one is used.
 

Documentation/mic/mpssd/mpssd.c

@@ -313,7 +313,7 @@ static struct mic_device_desc *get_device_desc(struct mic_info *mic, int type)
 	int i;
 	void *dp = get_dp(mic, type);
 
-	for (i = mic_aligned_size(struct mic_bootparam); i < PAGE_SIZE;
+	for (i = sizeof(struct mic_bootparam); i < PAGE_SIZE;
 		i += mic_total_desc_size(d)) {
 		d = dp + i;
 
@@ -445,8 +445,8 @@ init_vr(struct mic_info *mic, int fd, int type,
 		__func__, mic->name, vr0->va, vr0->info, vr_size,
 		vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN));
 	mpsslog("magic 0x%x expected 0x%x\n",
-		vr0->info->magic, MIC_MAGIC + type);
-	assert(vr0->info->magic == MIC_MAGIC + type);
+		le32toh(vr0->info->magic), MIC_MAGIC + type);
+	assert(le32toh(vr0->info->magic) == MIC_MAGIC + type);
 	if (vr1) {
 		vr1->va = (struct mic_vring *)
 			&va[MIC_DEVICE_PAGE_END + vr_size];
@@ -458,8 +458,8 @@ init_vr(struct mic_info *mic, int fd, int type,
 			__func__, mic->name, vr1->va, vr1->info, vr_size,
 			vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN));
 		mpsslog("magic 0x%x expected 0x%x\n",
-			vr1->info->magic, MIC_MAGIC + type + 1);
-		assert(vr1->info->magic == MIC_MAGIC + type + 1);
+			le32toh(vr1->info->magic), MIC_MAGIC + type + 1);
+		assert(le32toh(vr1->info->magic) == MIC_MAGIC + type + 1);
 	}
 done:
 	return va;
@@ -520,7 +520,7 @@ static void *
 virtio_net(void *arg)
 {
 	static __u8 vnet_hdr[2][sizeof(struct virtio_net_hdr)];
-	static __u8 vnet_buf[2][MAX_NET_PKT_SIZE] __aligned(64);
+	static __u8 vnet_buf[2][MAX_NET_PKT_SIZE] __attribute__ ((aligned(64)));
 	struct iovec vnet_iov[2][2] = {
 		{ { .iov_base = vnet_hdr[0], .iov_len = sizeof(vnet_hdr[0]) },
 		  { .iov_base = vnet_buf[0], .iov_len = sizeof(vnet_buf[0]) } },
@@ -1412,6 +1412,12 @@ mic_config(void *arg)
 	}
 
 	do {
+		ret = lseek(fd, 0, SEEK_SET);
+		if (ret < 0) {
+			mpsslog("%s: Failed to seek to file start '%s': %s\n",
+				mic->name, pathname, strerror(errno));
+			goto close_error1;
+		}
 		ret = read(fd, value, sizeof(value));
 		if (ret < 0) {
 			mpsslog("%s: Failed to read sysfs entry '%s': %s\n",