drm/amdgpu/vcn3.0: stall DPG when WPTR/RPTR reset

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Port from VCN2.5
Add vcn dpg harware synchronization to fix race condition
issue between vcn driver and hardware.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Boyuan Zhang 2020-05-10 15:47:03 -04:00 • committed by Alex Deucher

parent fb8284a50e

commit 7643023eef

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drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c

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