[PATCH 1/2] drm/i915/hsw: Add I915_EXEC_RESOURCE_STREAMER flag

[Abdiel Janulgue <abdiel.janulgue@linux.intel.com>]

Ensures that the batch buffer is executed by the resource streamer.

Signed-off-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
---
 drivers/gpu/drm/i915/i915_gem_execbuffer.c |    2 ++
 include/uapi/drm/i915_drm.h                |    5 +++++
 2 files changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 0ce0d47..4a56c58 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -962,6 +962,8 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 	case I915_EXEC_DEFAULT:
 	case I915_EXEC_RENDER:
 		ring = &dev_priv->ring[RCS];
+		flags |= (args->flags & I915_EXEC_RESOURCE_STREAMER) ?
+		  I915_EXEC_RESOURCE_STREAMER : 0;
 		break;
 	case I915_EXEC_BSD:
 		ring = &dev_priv->ring[VCS];
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
index 3a4e97b..5a4bd16 100644
--- a/include/uapi/drm/i915_drm.h
+++ b/include/uapi/drm/i915_drm.h
@@ -731,6 +731,11 @@ struct drm_i915_gem_execbuffer2 {
  */
 #define I915_EXEC_HANDLE_LUT		(1<<12)
 
+/** Tell the kernel that the batchbuffer is processed by
+ *  the resource streamer.
+ */
+#define I915_EXEC_RESOURCE_STREAMER     (1<<13)
+
 #define __I915_EXEC_UNKNOWN_FLAGS -(I915_EXEC_HANDLE_LUT<<1)
 
 #define I915_EXEC_CONTEXT_ID_MASK	(0xffffffff)
-- 
1.7.9.5