25 lines
616 B
C
25 lines
616 B
C
#ifndef _X8664_SCATTERLIST_H
|
|
#define _X8664_SCATTERLIST_H
|
|
|
|
#include <asm/types.h>
|
|
|
|
struct scatterlist {
|
|
struct page *page;
|
|
unsigned int offset;
|
|
unsigned int length;
|
|
dma_addr_t dma_address;
|
|
unsigned int dma_length;
|
|
};
|
|
|
|
#define ISA_DMA_THRESHOLD (0x00ffffff)
|
|
|
|
/* 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)
|
|
|
|
#endif
|