+ nouveau_fence_new(screen, &screen->fence.current);
+}
+
+void
+nouveau_fence_unref_bo(void *data)
+{
+ struct nouveau_bo *bo = data;
+
+ nouveau_bo_ref(NULL, &bo);
+}
+
+bool
+nouveau_fence_work(struct nouveau_fence *fence,
+ void (*func)(void *), void *data)
+{
+ struct nouveau_fence_work *work;
+
+ if (!fence || fence->state == NOUVEAU_FENCE_STATE_SIGNALLED) {
+ func(data);
+ return true;
+ }
+
+ work = CALLOC_STRUCT(nouveau_fence_work);
+ if (!work)
+ return false;
+ work->func = func;
+ work->data = data;
+ LIST_ADD(&work->list, &fence->work);
+ p_atomic_inc(&fence->work_count);
+ if (fence->work_count > 64)
+ nouveau_fence_kick(fence);
+ return true;