From 4667a4a52ffc3789c45f46096cdffb053591a8e1 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Thu, 11 Feb 2010 14:14:42 +0100
Subject: [PATCH] drm/i915: overlay: nuke readback to flush wc caches

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

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Eric Anholt <eric@anholt.net>
[anholt: fixed up compile warning]
Signed-off-by: Eric Anholt <eric@anholt.net>
---
Reading git-format-patch failed