[Intel-gfx] [PATCH] drm/i915: Remove redundant DIRTYFB frontbuffer flushes

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

The frontbuffer tracking code is supposed to handle plane
updates via ORIGIN_FLIP. Right now we're also doing internal
ORIGIN_DIRTYFB flushed as well. Can't see the point so get rid
of them.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index fcd8123ede8e..1fe85a6ea90a 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -1732,8 +1732,6 @@ intel_find_initial_plane_obj(struct intel_crtc *intel_crtc,
 	intel_plane_copy_uapi_to_hw_state(intel_state, intel_state,
 					  intel_crtc);
 
-	intel_frontbuffer_flush(to_intel_frontbuffer(fb), ORIGIN_DIRTYFB);
-
 	atomic_or(to_intel_plane(primary)->frontbuffer_bit,
 		  &to_intel_frontbuffer(fb)->bits);
 }
@@ -10647,7 +10645,6 @@ intel_prepare_plane_fb(struct drm_plane *_plane,
 		return ret;
 
 	i915_gem_object_wait_priority(obj, 0, &attr);
-	i915_gem_object_flush_frontbuffer(obj, ORIGIN_DIRTYFB);
 
 	if (!new_plane_state->uapi.fence) { /* implicit fencing */
 		struct dma_fence *fence;
-- 
2.26.3