drm/radeon: Fix sideport problems on certain RS690 boards
authorAlex Deucher <alexander.deucher@amd.com>
Mon, 2 Dec 2013 23:15:51 +0000 (18:15 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 12 Dec 2013 13:34:40 +0000 (08:34 -0500)
commit8333f0fe133be420ce3fcddfd568c3a559ab274e
treeac5d56a9efa5b52b6b277de66811b7b7c90ff78c
parent5c015db7d9d2eaecf5223eaad7a05c0e8e180288
drm/radeon: Fix sideport problems on certain RS690 boards

Some RS690 boards with 64MB of sideport memory show up as
having 128MB sideport + 256MB of UMA.  In this case,
just skip the sideport memory and use UMA.  This fixes
rendering corruption and should improve performance.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=35457

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/radeon/rs690.c