drm/ttm: lock resv object during destruction (efa557bc) · Commits · 戴 / test

Calling ttm_bo_cleanup_memtype_use() destroys the TT object which in turn could result in warnings without this. Signed-off-by:

drivers/gpu/drm/ttm/ttm_bo.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -588,7 +588,8 @@ static void ttm_bo_release(struct kref *kref)
		ttm_mem_io_unlock(man);
		}

		if (!dma_resv_test_signaled_rcu(bo->base.resv, true)) {
		if (!dma_resv_test_signaled_rcu(bo->base.resv, true) \|\|
		!dma_resv_trylock(bo->base.resv)) {
		/* The BO is not idle, resurrect it for delayed destroy */
		ttm_bo_flush_all_fences(bo);
		bo->deleted = true;
		@@ -621,6 +622,7 @@ static void ttm_bo_release(struct kref *kref)
		spin_unlock(&ttm_bo_glob.lru_lock);

		ttm_bo_cleanup_memtype_use(bo);
		dma_resv_unlock(bo->base.resv);

		BUG_ON(bo->mem.mm_node != NULL);
		atomic_dec(&ttm_bo_glob.bo_count);