ia64/xen-unstable

view linux-2.6-xen-sparse/include/asm-xen/asm-i386/scatterlist.h @ 6552:a9873d384da4

Merge.
author adsharma@los-vmm.sc.intel.com
date Thu Aug 25 12:24:48 2005 -0700 (2005-08-25)
parents 112d44270733 fa0754a9f64f
children dfaf788ab18c
line source
1 #ifndef _I386_SCATTERLIST_H
2 #define _I386_SCATTERLIST_H
4 struct scatterlist {
5 struct page *page;
6 unsigned int offset;
7 unsigned int length;
8 dma_addr_t dma_address;
9 unsigned int dma_length;
10 };
12 /* These macros should be used after a pci_map_sg call has been done
13 * to get bus addresses of each of the SG entries and their lengths.
14 * You should only work with the number of sg entries pci_map_sg
15 * returns.
16 */
17 #define sg_dma_address(sg) ((sg)->dma_address)
18 #define sg_dma_len(sg) ((sg)->dma_length)
20 #define ISA_DMA_THRESHOLD (0x00ffffff)
22 #endif /* !(_I386_SCATTERLIST_H) */