[Intel-gfx] [PATCH] drm: i915: Wait for fences on new fb, not old

[Daniel Stone]

The previous code would wait for fences on the framebuffer from the old
plane state to complete, rather than the new, so you would see tearing
everywhere. Fix this to wait on the new state before we make it active.

Signed-off-by: Daniel Stone <daniels at collabora.com>
Fixes: 94f050246b42 ("drm/i915: nonblocking commit")
Cc: stable at vger.kernel.org
Cc: Daniel Vetter <daniel.vetter at intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index e5ad101..1bdef9e 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14292,7 +14292,7 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
 
 	for_each_plane_in_state(state, plane, plane_state, i) {
 		struct intel_plane_state *intel_plane_state =
-			to_intel_plane_state(plane_state);
+			to_intel_plane_state(plane->state);
 
 		if (!intel_plane_state->wait_req)
 			continue;
-- 
2.9.3