diff options
| author | Yifan Zha <Yifan.Zha@amd.com> | 2022-10-25 16:55:05 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-11-01 11:45:44 -0400 |
| commit | 47a7470bb2ca2d2ccbd945082e5ebf0279a33fe5 (patch) | |
| tree | ec659c21a712702212bba76166c6c58ad5e5ac63 | |
| parent | 2103c42198d38d6c02f8b9720c2a19cf3b4adddd (diff) | |
drm/amdgpu: Skip access GRBM_CNTL under SRIOV on gfx_v11
[Why]
GRBM_CNTL is a PF_only register on gfx_v11.
RLCG interface will return "out of range" under SRIOV VF.
[How]
Skip access GRBM_CNTL under gfx_v11 SRIOV VF.
Signed-off-by: Yifan Zha <Yifan.Zha@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c index 443ce664b663..f68e13b6282c 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c @@ -1626,7 +1626,8 @@ static void gfx_v11_0_constants_init(struct amdgpu_device *adev) u32 tmp; int i; - WREG32_FIELD15_PREREG(GC, 0, GRBM_CNTL, READ_TIMEOUT, 0xff); + if (!amdgpu_sriov_vf(adev)) + WREG32_FIELD15_PREREG(GC, 0, GRBM_CNTL, READ_TIMEOUT, 0xff); gfx_v11_0_setup_rb(adev); gfx_v11_0_get_cu_info(adev, &adev->gfx.cu_info); |