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| /openbmc/linux/drivers/gpu/drm/amd/amdgpu/ |
| H A D | soc21.c | bbb860d4 Wed Aug 17 04:25:15 CDT 2022 Yifan Zha <Yifan.Zha@amd.com> drm/amdgpu: Use RLCG to program GRBM_GFX_CNTL during full access time
[Why]
KIQ register init requires GRBM_GFX_CNTL to select KIQ.
[How]
As RLCG accessing registers will save the data of GRBM_GFX_CNTL and restore it.
Use RLCG indirect accessing register method to select grbm instead of mmio directly access.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Yifan Zha <Yifan.Zha@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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