swiotlb_tbl_map_single
phys = swiotlb_tbl_map_single(dev, phys, size, iova_mask(iovad), dir,
map = swiotlb_tbl_map_single(dev, phys, size, 0, dir, attrs);
phys_addr_t swiotlb_tbl_map_single(struct device *hwdev, phys_addr_t phys,
swiotlb_addr = swiotlb_tbl_map_single(dev, paddr, size, 0, dir, attrs);