fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-xtensa / scatterlist.h
blobca337a2942908d11e750e4c62d1651696c767cb8
1 /*
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
6 * for more details.
8 * Copyright (C) 2001 - 2005 Tensilica Inc.
9 */
11 #ifndef _XTENSA_SCATTERLIST_H
12 #define _XTENSA_SCATTERLIST_H
14 #include <asm/types.h>
16 struct scatterlist {
17 struct page *page;
18 unsigned int offset;
19 dma_addr_t dma_address;
20 unsigned int length;
24 * These macros should be used after a pci_map_sg call has been done
25 * to get bus addresses of each of the SG entries and their lengths.
26 * You should only work with the number of sg entries pci_map_sg
27 * returns, or alternatively stop on the first sg_dma_len(sg) which
28 * is 0.
30 #define sg_dma_address(sg) ((sg)->dma_address)
31 #define sg_dma_len(sg) ((sg)->length)
34 #define ISA_DMA_THRESHOLD (~0UL)
36 #endif /* _XTENSA_SCATTERLIST_H */