blob: eaf7ada27e1485c81bc174e417141128c587e056 [file] [log] [blame]
#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)