blob: bec2ff3c8bd2a304a9ee5a92d6e33daafc5a5849 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
#ifndef _I386_SCATTERLIST_H
#define _I386_SCATTERLIST_H
struct scatterlist {
struct page *page;
unsigned int offset;
unsigned int length;
dma_addr_t dma_address;
unsigned int dma_length;
};
/* These macros should be used after a pci_map_sg call has been done
* to get bus addresses of each of the SG entries and their lengths.
* You should only work with the number of sg entries pci_map_sg
* returns.
*/
#define sg_dma_address(sg) ((sg)->dma_address)
#define sg_dma_len(sg) ((sg)->dma_length)
#define ISA_DMA_THRESHOLD (0x00ffffff)
#endif /* !(_I386_SCATTERLIST_H) */
|
