ttm_mem_io_reserve_vm  207 drivers/gpu/drm/ttm/ttm_bo_vm.c 	err = ttm_mem_io_reserve_vm(bo);
ttm_mem_io_reserve_vm  627 include/drm/ttm/ttm_bo_driver.h int ttm_mem_io_reserve_vm(struct ttm_buffer_object *bo);