drm/radeon: rework UVD writeback & [rw]ptr handling

The hardware just doesn't support this correctly.
Disable it before we accidentally write anywhere we shouldn't.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2013-08-13 11:56:51 +02:00 • committed by Alex Deucher
commit 02c9f7fa4e
10 changed files with 38 additions and 31 deletions