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Code Issues Releases Wiki Activity

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>
This commit is contained in:
Yifan Zha 2022-08-17 17:25:15 +08:00 committed by Alex Deucher
parent 08c8442c4a
commit bbb860d46f
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdgpu/soc21.c
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@ -179,7 +179,7 @@ void soc21_grbm_select(struct amdgpu_device *adev,
grbm_gfx_cntl = REG_SET_FIELD(grbm_gfx_cntl, GRBM_GFX_CNTL, VMID, vmid);
grbm_gfx_cntl = REG_SET_FIELD(grbm_gfx_cntl, GRBM_GFX_CNTL, QUEUEID, queue);
WREG32(SOC15_REG_OFFSET(GC, 0, regGRBM_GFX_CNTL), grbm_gfx_cntl);
WREG32_SOC15(GC, 0, regGRBM_GFX_CNTL, grbm_gfx_cntl);
}
static void soc21_vga_set_state(struct amdgpu_device *adev, bool state)