drm/amdgpu/mes: implement removing mes ring

Remove the mes ring and its resources.
Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c

@@ -846,3 +846,14 @@ int amdgpu_mes_add_ring(struct amdgpu_device *adev, int gang_id,
 	mutex_unlock(&adev->mes.mutex);
 	return r;
 }
+
+void amdgpu_mes_remove_ring(struct amdgpu_device *adev,
+			    struct amdgpu_ring *ring)
+{
+	if (!ring)
+		return;
+
+	amdgpu_mes_remove_hw_queue(adev, ring->hw_queue_id);
+	amdgpu_ring_fini(ring);
+	kfree(ring);
+}

drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h

@@ -259,5 +259,7 @@ int amdgpu_mes_add_ring(struct amdgpu_device *adev, int gang_id,
 			int queue_type, int idx,
 			struct amdgpu_mes_ctx_data *ctx_data,
 			struct amdgpu_ring **out);
+void amdgpu_mes_remove_ring(struct amdgpu_device *adev,
+			    struct amdgpu_ring *ring);
 
 #endif /* __AMDGPU_MES_H__ */