direct-io.hg

view linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/scatterlist.h @ 11509:2e6c10dc7c0b

[POWERPC][XEN] make sure put_domain() is called in case of allocate_rma() failuer

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
author Jimi Xenidis <jimix@watson.ibm.com>
date Tue Sep 12 10:53:46 2006 -0400 (2006-09-12)
parents fd9b2c1bb577
children
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) */