drm/amdgpu: fix initializing the VM BO shadow

We need to clear the shadows as well.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 04aa5a77e953..3a43000bdf8c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1435,6 +1435,15 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev,
                         goto error_free;
                 }
 
+                if (pt->shadow) {
+                        r = amdgpu_vm_clear_bo(adev, vm, pt->shadow);
+                        if (r) {
+                                amdgpu_bo_unref(&pt->shadow);
+                                amdgpu_bo_unref(&pt);
+                                goto error_free;
+                        }
+                }
+
                 entry->robj = pt;
                 entry->priority = 0;
                 entry->tv.bo = &entry->robj->tbo;
@@ -1632,6 +1641,12 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
         if (r)
                 goto error_unreserve;
 
+        if (vm->page_directory->shadow) {
+                r = amdgpu_vm_clear_bo(adev, vm, vm->page_directory->shadow);
+                if (r)
+                        goto error_unreserve;
+        }
+
         vm->last_eviction_counter = atomic64_read(&adev->num_evictions);
         amdgpu_bo_unreserve(vm->page_directory);