drm/amdgpu: add option to clear VM page tables after every submit

[deliverable/linux.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_cs.c

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 29fc45ce64ddb636df41b6d7beacf2aa45b67f24..25012c790f8fd6578f1b65183b61e58d0362cef8 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -567,9 +567,24 @@ static int amdgpu_bo_vm_update_pte(struct amdgpu_cs_parser *p,
                        if (r)
                                return r;
                }
+
+       }
+
+       r = amdgpu_vm_clear_invalids(adev, vm, &p->ibs[0].sync);
+
+       if (amdgpu_vm_debug && p->bo_list) {
+               /* Invalidate all BOs to test for userspace bugs */
+               for (i = 0; i < p->bo_list->num_entries; i++) {
+                       /* ignore duplicates */
+                       bo = p->bo_list->array[i].robj;
+                       if (!bo)
+                               continue;
+
+                       amdgpu_vm_bo_invalidate(adev, bo);
+               }
        }
 
-       return amdgpu_vm_clear_invalids(adev, vm, &p->ibs[0].sync);
+       return r;
 }
 
 static int amdgpu_cs_ib_vm_chunk(struct amdgpu_device *adev,