2 * include/asm-xtensa/scatterlist.h
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
8 * Copyright (C) 2001 - 2005 Tensilica Inc.
11 #ifndef _XTENSA_SCATTERLIST_H
12 #define _XTENSA_SCATTERLIST_H
17 dma_addr_t dma_address;
22 * These macros should be used after a pci_map_sg call has been done
23 * to get bus addresses of each of the SG entries and their lengths.
24 * You should only work with the number of sg entries pci_map_sg
25 * returns, or alternatively stop on the first sg_dma_len(sg) which
28 #define sg_dma_address(sg) ((sg)->dma_address)
29 #define sg_dma_len(sg) ((sg)->length)
32 #define ISA_DMA_THRESHOLD (~0UL)
34 #endif /* _XTENSA_SCATTERLIST_H */