955 	struct i915_ppgtt *ppgtt;  in init_aliasing_ppgtt()  local
958 	ppgtt = i915_ppgtt_create(ggtt->vm.gt, 0);  in init_aliasing_ppgtt()
959 	if (IS_ERR(ppgtt))  in init_aliasing_ppgtt()
960 		return PTR_ERR(ppgtt);  in init_aliasing_ppgtt()
962 	if (GEM_WARN_ON(ppgtt->vm.total < ggtt->vm.total)) {  in init_aliasing_ppgtt()
967 	err = i915_vm_alloc_pt_stash(&ppgtt->vm, &stash, ggtt->vm.total);  in init_aliasing_ppgtt()
971 	i915_gem_object_lock(ppgtt->vm.scratch[0], NULL);  in init_aliasing_ppgtt()
972 	err = i915_vm_map_pt_stash(&ppgtt->vm, &stash);  in init_aliasing_ppgtt()
973 	i915_gem_object_unlock(ppgtt->vm.scratch[0]);  in init_aliasing_ppgtt()
983 	ppgtt->vm.allocate_va_range(&ppgtt->vm, &stash, 0, ggtt->vm.total);  in init_aliasing_ppgtt()
985 	ggtt->alias = ppgtt;  in init_aliasing_ppgtt()
986 	ggtt->vm.bind_async_flags |= ppgtt->vm.bind_async_flags;  in init_aliasing_ppgtt()
994 	i915_vm_free_pt_stash(&ppgtt->vm, &stash);  in init_aliasing_ppgtt()
998 	i915_vm_free_pt_stash(&ppgtt->vm, &stash);  in init_aliasing_ppgtt()
1000 	i915_vm_put(&ppgtt->vm);  in init_aliasing_ppgtt()
1006 	struct i915_ppgtt *ppgtt;  in fini_aliasing_ppgtt()  local
1008 	ppgtt = fetch_and_zero(&ggtt->alias);  in fini_aliasing_ppgtt()
1009 	if (!ppgtt)  in fini_aliasing_ppgtt()
1012 	i915_vm_put(&ppgtt->vm);  in fini_aliasing_ppgtt()