blob: c693d268a41358b943adc608ed4b6caac91f77e3 (
plain) (
blame)
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
26
27
28
|
#ifndef __ASM_SH_SCATTERLIST_H
#define __ASM_SH_SCATTERLIST_H
#include <asm/types.h>
struct scatterlist {
#ifdef CONFIG_DEBUG_SG
unsigned long sg_magic;
#endif
unsigned long page_link;
unsigned int offset; /* for highmem, page offset */
unsigned int length;
dma_addr_t dma_address;
unsigned int dma_length;
};
#define ISA_DMA_THRESHOLD PHYS_ADDR_MASK
/* 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 /* !(__ASM_SH_SCATTERLIST_H) */
|
