drm/damdgpu:add new mqd member in ring

introduce a new mqd member in ring is for later usage.
we need keep a clean version of MQD for the purpose
of recovering compute rings from hang.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index e0a96ca583a4..505db77dc87d 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -4596,6 +4596,8 @@ static void gfx_v8_0_cp_compute_fini(struct amdgpu_device *adev)
 
 			amdgpu_bo_unref(&ring->mqd_obj);
 			ring->mqd_obj = NULL;
+			ring->mqd_ptr = NULL;
+			ring->mqd_gpu_addr = 0;
 		}
 	}
 }