From: Alex Deucher <alexdeucher@gmail.com>
Date: Mon, 21 Sep 2009 04:48:45 +0000 (+1000)
Subject: drm/radeon: some r420s have a CP race with the DMA engine.
X-Git-Tag: v2.6.32-rc1~159^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aadd4e17452d3d5c2269cd2b000b7de7cfb6c79e;p=pandora-kernel.git

drm/radeon: some r420s have a CP race with the DMA engine.

This patch makes sure the CP doesn't DMA do VRAM while 2D
is active by inserting a CP resync token.

todo: port to kms.

Signed-off-by: Dave Airlie <airlied@redhat.com>
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