[Intel-gfx] [PATCH 1/2] drm/i915: overlay: nuke readback to flush wc caches

[Daniel Vetter]

I retested this and whatever this papered over, the problem doesn't seem
to exist anymore.

Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/i915/intel_overlay.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index 2639591..566614c 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -207,8 +207,6 @@ static void intel_overlay_unmap_regs_atomic(struct intel_overlay *overlay)
 
 	overlay->virt_addr = NULL;
 
-	I915_READ(OVADD); /* flush wc cashes */
-
 	return;
 }
 
-- 
1.6.6.1