tree b305a6940a4b04980f54e30a0807ada45eed6d1f
parent 3744b248f9c617295f1fd015d67281a67e592ecb
author Alex Deucher <alexander.deucher@amd.com> 1375807216 -0400
committer Alex Deucher <alexander.deucher@amd.com> 1375911438 -0400

drm/radeon/cik: use a mutex to properly lock srbm instanced registers

We need proper locking in the driver when accessing instanced
registers on CIK.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>