drm/amdgpu: add the trailing fence per ring
The trailing fence for ring is used to track the completion of preemption. Acked-by:Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by:
Jack Xiao <Jack.Xiao@amd.com> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com>
parent
dfc98479
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