Commits
Eric Anholt committed 4593010b682
drm/i915: Update the location of the ringbuffers' HWS_PGA registers for IVB. They have been moved from the ringbuffer groups to their own group it looks like. Fixes GPU hangs on gnome startup. Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Keith Packard <keithp@keithp.com>