| commit | 87463ff83bcda210d8f0ae440bd64d1548f852e7 | [log] [tgz] |
|---|---|---|
| author | Michel Dänzer <michel.daenzer@amd.com> | Tue Sep 13 11:27:35 2011 +0200 |
| committer | Dave Airlie <airlied@redhat.com> | Wed Sep 14 13:35:35 2011 +0100 |
| tree | fd998d5b0e921d3d7aa3e60ea4046e9660ab2574 | |
| parent | ff02b13f6867af72682d7a9bb9bd705f9af2bab0 [diff] |
drm/radeon: Don't read from CP ring write pointer registers. Apparently this doesn't always work reliably, e.g. at resume time. Just initialize to 0, so the ring is considered empty. Tested with hibernation on Sumo and Cayman cards. Should fix https://bugs.launchpad.net/ubuntu/+source/linux/+bug/820746/ . Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>