tree 72f17de0667e9a006f3b454f9af4745299e198c7
parent b556b12e829c504bd3d1044e28ffbae2385b6fdc
author Alex Deucher <alexander.deucher@amd.com> 1359486656 -0500
committer Alex Deucher <alexander.deucher@amd.com> 1372344547 -0400

drm/radeon: use callbacks for ring pointer handling (v3)

Add callbacks to the radeon_asic struct to handle
rptr/wptr fetchs and wptr updates.
We currently use one version for all rings, but this
allows us to override with a ring specific versions.

Needed for compute rings on CIK.

v2: udpate as per Christian's comments
v3: fix some rebase cruft

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