drm/amdgpu/vcn3.0: add wptr/rptr reset/update for share memory

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Because of dpg, the rptr/wptr need to be saved on fw shared memory,
and restore them back in RBC_RB_RPTR/WPTR in kernel at power up.

Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Sonny Jiang 2021-01-31 09:44:51 -05:00 • committed by Alex Deucher

parent 4588f7b7dd

commit b2576c3bf4

2 changed files with 34 additions and 3 deletions

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13

drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h

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24

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

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