1#ifndef _ALPHA_SCATTERLIST_H 2#define _ALPHA_SCATTERLIST_H 3 4#include <asm/page.h> 5#include <asm/types.h> 6 7struct scatterlist { 8 struct page *page; 9 unsigned int offset; 10 11 unsigned int length; 12 13 dma_addr_t dma_address; 14 __u32 dma_length; 15}; 16 17#define sg_dma_address(sg) ((sg)->dma_address) 18#define sg_dma_len(sg) ((sg)->dma_length) 19 20#define ISA_DMA_THRESHOLD (~0UL) 21 22#endif /* !(_ALPHA_SCATTERLIST_H) */ 23