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drm/amdgpu: add kiq version interface for RREG32/WREG32

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Reading some registers by mmio will result in hang when GPU is in
"gfxoff" state.This problem can be solved by GPU in "ring command
packages" way.

Signed-off-by: chen gong <curry.gong@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
chen gong
2020-01-15 14:44:43 +08:00
committed by Alex Deucher
parent d33a99c4b6
commit c68dbcd8f9
2 changed files with 6 additions and 2 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@@ -216,7 +216,7 @@ uint32_t amdgpu_mm_rreg(struct amdgpu_device *adev, uint32_t reg,
{
uint32_t ret;
if (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev))
if ((acc_flags & AMDGPU_REGS_KIQ) || (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev)))
return amdgpu_kiq_rreg(adev, reg);
if ((reg * 4) < adev->rmmio_size && !(acc_flags & AMDGPU_REGS_IDX))
@@ -294,7 +294,7 @@ void amdgpu_mm_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v,
adev->last_mm_index = v;
}
if (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev))
if ((acc_flags & AMDGPU_REGS_KIQ) || (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev)))
return amdgpu_kiq_wreg(adev, reg, v);
if ((reg * 4) < adev->rmmio_size && !(acc_flags & AMDGPU_REGS_IDX))