drm/amdgpu: disable uvd pg on Tonga.

it does not work with GPU pass through if the VM
is not cleanly shutdown leading to a hang when the
modules is reloaded.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index 9f771f4..6d49254 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -933,7 +933,7 @@ static int vi_common_early_init(void *handle)
                break;
        case CHIP_TONGA:
                adev->cg_flags = AMD_CG_SUPPORT_UVD_MGCG;
-               adev->pg_flags = AMD_PG_SUPPORT_UVD;
+               adev->pg_flags = 0;
                adev->external_rev_id = adev->rev_id + 0x14;
                break;
        case CHIP_POLARIS11: