Merge tag 'drm-intel-next-2017-05-29' of git://anongit.freedesktop.org/git/drm-intel into drm-next

More stuff for 4.13:

- skl+ wm fixes from Mahesh Kumar
- some refactor and tests for i915_sw_fence (Chris)
- tune execlist/scheduler code (Chris)
- g4x,g33 gpu reset improvements (Chris, Mika)
- guc code cleanup (Michal Wajdeczko, Michał Winiarski)
- dp aux backlight improvements (Puthikorn Voravootivat)
- buffer based guc/host communication (Michal Wajdeczko)

* tag 'drm-intel-next-2017-05-29' of git://anongit.freedesktop.org/git/drm-intel: (253 commits)
  drm/i915: Update DRIVER_DATE to 20170529
  drm/i915: Keep the forcewake timer alive for 1ms past the most recent use
  drm/i915/guc: capture GuC logs if FW fails to load
  drm/i915/guc: Introduce buffer based cmd transport
  drm/i915/guc: Disable send function on fini
  drm: Add definition for eDP backlight frequency
  drm/i915: Drop AUX backlight enable check for backlight control
  drm/i915: Consolidate #ifdef CONFIG_INTEL_IOMMU
  drm/i915: Only GGTT vma may be pinned and prevent shrinking
  drm/i915: Serialize GTT/Aperture accesses on BXT
  drm/i915: Convert i915_gem_object_ops->flags values to use BIT()
  drm/i915/selftests: Silence compiler warning in igt_ctx_exec
  drm/i915/guc: Skip port assign on first iteration of GuC dequeue
  drm/i915: Remove misleading comment in request_alloc
  drm/i915/g33: Improve reset reliability
  Revert "drm/i915: Restore lost "Initialized i915" welcome message"
  drm/i915/huc: Update GLK HuC version
  drm/i915: Check for allocation failure
  drm/i915/guc: Remove action status and statistics from debugfs
  drm/i915/g4x: Improve gpu reset reliability
  ...

include/uapi/drm/i915_drm.h

@@ -412,6 +412,12 @@ typedef struct drm_i915_irq_wait {
  */
 #define I915_PARAM_HAS_EXEC_FENCE	 44
 
+/* Query whether DRM_I915_GEM_EXECBUFFER2 supports the ability to capture
+ * user specified bufffers for post-mortem debugging of GPU hangs. See
+ * EXEC_OBJECT_CAPTURE.
+ */
+#define I915_PARAM_HAS_EXEC_CAPTURE	 45
+
 typedef struct drm_i915_getparam {
 	__s32 param;
 	/*
@@ -666,6 +672,8 @@ struct drm_i915_gem_relocation_entry {
 #define I915_GEM_DOMAIN_VERTEX		0x00000020
 /** GTT domain - aperture and scanout */
 #define I915_GEM_DOMAIN_GTT		0x00000040
+/** WC domain - uncached access */
+#define I915_GEM_DOMAIN_WC		0x00000080
 /** @} */
 
 struct drm_i915_gem_exec_object {
@@ -773,8 +781,15 @@ struct drm_i915_gem_exec_object2 {
  * I915_PARAM_HAS_EXEC_FENCE to order execbufs and execute them asynchronously.
  */
 #define EXEC_OBJECT_ASYNC		(1<<6)
+/* Request that the contents of this execobject be copied into the error
+ * state upon a GPU hang involving this batch for post-mortem debugging.
+ * These buffers are recorded in no particular order as "user" in
+ * /sys/class/drm/cardN/error. Query I915_PARAM_HAS_EXEC_CAPTURE to see
+ * if the kernel supports this flag.
+ */
+#define EXEC_OBJECT_CAPTURE		(1<<7)
 /* All remaining bits are MBZ and RESERVED FOR FUTURE USE */
-#define __EXEC_OBJECT_UNKNOWN_FLAGS -(EXEC_OBJECT_ASYNC<<1)
+#define __EXEC_OBJECT_UNKNOWN_FLAGS -(EXEC_OBJECT_CAPTURE<<1)
 	__u64 flags;
 
 	union {