blob: f21f18f565484324c2f3427e280eaac8d35bfb68 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
#ifdef __KERNEL__
#ifndef _PPC_SCATTERLIST_H
#define _PPC_SCATTERLIST_H
#include <asm/dma.h>
struct scatterlist {
struct page *page;
unsigned int offset;
dma_addr_t dma_address;
unsigned int 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, or alternatively stop on the first sg_dma_len(sg) which
* is 0.
*/
#define sg_dma_address(sg) ((sg)->dma_address)
#define sg_dma_len(sg) ((sg)->length)
#endif /* !(_PPC_SCATTERLIST_H) */
#endif /* __KERNEL__ */
|
