mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-26 04:25:27 +08:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
27 lines
788 B
C
27 lines
788 B
C
#ifndef _ASMARM_SCATTERLIST_H
|
|
#define _ASMARM_SCATTERLIST_H
|
|
|
|
#include <asm/types.h>
|
|
|
|
struct scatterlist {
|
|
struct page *page; /* buffer page */
|
|
unsigned int offset; /* buffer offset */
|
|
dma_addr_t dma_address; /* dma address */
|
|
unsigned int length; /* length */
|
|
char *__address; /* for set_dma_addr */
|
|
};
|
|
|
|
/*
|
|
* 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)
|
|
|
|
#define ISA_DMA_THRESHOLD (0xffffffff)
|
|
|
|
#endif /* _ASMARM_SCATTERLIST_H */
|