tree 5b732d2d0b22b194c1a3436b6bef8355ad6cd265
parent 4a75aefe3feb99ff87c1ea594b4db377b98f50e8
author Andres Rodriguez <andresx7@gmail.com> 1506462194 -0400
committer Alex Deucher <alexander.deucher@amd.com> 1506629002 -0400

drm/amdgpu: map compute rings by least recently used pipe

This patch provides a guarantee that the first n queues allocated by
an application will be on different pipes. Where n is the number of
pipes available from the hardware.

This helps avoid ring aliasing which can result in work executing in
time-sliced mode instead of truly parallel mode.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>