diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c index 69182eeca264..1a30c54a0889 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c @@ -2889,7 +2889,13 @@ static int gfx_v9_0_hw_fini(void *handle) amdgpu_irq_put(adev, &adev->gfx.priv_reg_irq, 0); amdgpu_irq_put(adev, &adev->gfx.priv_inst_irq, 0); if (amdgpu_sriov_vf(adev)) { - pr_debug("For SRIOV client, shouldn't do anything.\n"); + gfx_v9_0_cp_gfx_enable(adev, false); + /* must disable polling for SRIOV when hw finished, otherwise + * CPC engine may still keep fetching WB address which is already + * invalid after sw finished and trigger DMAR reading error in + * hypervisor side. + */ + WREG32_FIELD15(GC, 0, CP_PQ_WPTR_POLL_CNTL, EN, 0); return 0; } gfx_v9_0_cp_enable(adev, false); |