drm/amdgpu: fix bug of vm_bo_map (v2)

call reservation_object_reserve_shared before amdgpu_bo_fence

Signed-off-by: monk.liu <monk.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jammy Zhou <jammy.zhou@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index b25e533fd6e8f53050cd37721cfc449673d179f7..cc6dca2581a60c243ebb1f6a0031f3a0df4c91d7 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -315,6 +315,10 @@ static int amdgpu_vm_clear_bo(struct amdgpu_device *adev,
        if (r)
                return r;
 
+       r = reservation_object_reserve_shared(bo->tbo.resv);
+       if (r)
+               return r;
+
        r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
        if (r)
                goto error_unreserve;