Aldebaran SRIOV VF does not have write permissions to GRBM_CTNL. This access can be skipped to avoid a dmesg warning. Signed-off-by: Victor Lu <victorchengchi.lu@xxxxxxx> --- drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c index ccdfe7c37517..569a76835918 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c @@ -2637,7 +2637,9 @@ static void gfx_v9_0_constants_init(struct amdgpu_device *adev) u32 tmp; int i; - WREG32_FIELD15_RLC(GC, 0, GRBM_CNTL, READ_TIMEOUT, 0xff); + if (!amdgpu_sriov_vf(adev) || (adev->asic_type != CHIP_ALDEBARAN)) { + WREG32_FIELD15_RLC(GC, 0, GRBM_CNTL, READ_TIMEOUT, 0xff); + } gfx_v9_0_tiling_mode_table_init(adev); -- 2.34.1