drm/amdgpu: remove the VI hardware semaphore in ring sync

Signed-off-by: David Zhang <david1.zhang@amd.com>

Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
David Zhang 2015-06-11 02:28:56 +08:00 • committed by Alex Deucher
commit 147dbfbc54