drm/i915: Invalidate media caches on gen7

commit 148b83d0815a3778c8949e6a97cb798cbaa0efb3 upstream.

In the gen7 pipe control there is an extra bit to flush the media
caches, so let's set it during cache invalidation flushes.

v2: Rename to MEDIA_STATE_CLEAR to be more inline with spec.

Cc: Simon Farnsworth <simon@farnz.org.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 2d90f96c19d021337813bed6b0c5435939d23e7f..7695b5dd9d2d3d95106d2658b175434e691db0d3 100644 (file)
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -317,6 +317,7 @@
 #define   PIPE_CONTROL_GLOBAL_GTT_IVB                  (1<<24) /* gen7+ */
 #define   PIPE_CONTROL_CS_STALL                                (1<<20)
 #define   PIPE_CONTROL_TLB_INVALIDATE                  (1<<18)
+#define   PIPE_CONTROL_MEDIA_STATE_CLEAR               (1<<16)
 #define   PIPE_CONTROL_QW_WRITE                                (1<<14)
 #define   PIPE_CONTROL_DEPTH_STALL                     (1<<13)
 #define   PIPE_CONTROL_WRITE_FLUSH                     (1<<12)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 4605c3877c955cc7374583df3b37784e1cd34056..6c733d6d813b19421614eae33abdf3cf829769f8 100644 (file)
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -314,6 +314,7 @@ gen7_render_ring_flush(struct intel_ring_buffer *ring,
                flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE;
                flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE;
                flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE;
+               flags |= PIPE_CONTROL_MEDIA_STATE_CLEAR;
                /*
                 * TLB invalidate requires a post-sync write.
                 */