tree 77a9c724a2316593fa22f7442d5c4a8d00c9af32
parent 833ee5c4ab36937a99e63935d7f06bc2c1f9343b
author Alex Deucher <alexdeucher@gmail.com> 1280184713 -0400
committer Dave Airlie <airlied@redhat.com> 1280707578 +1000

drm/radeon/kms/r7xx: add workaround for hw issue with HDP flush

Use of HDP_*_COHERENCY_FLUSH_CNTL can cause a hang in certain
situations.  Add workaround.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>