1 #ifndef _I386_SCATTERLIST_H
2 #define _I386_SCATTERLIST_H
8 unsigned long sg_magic;
10 unsigned long page_link;
12 dma_addr_t dma_address;
16 #define ARCH_HAS_SG_CHAIN
18 /* These macros should be used after a pci_map_sg call has been done
19 * to get bus addresses of each of the SG entries and their lengths.
20 * You should only work with the number of sg entries pci_map_sg
23 #define sg_dma_address(sg) ((sg)->dma_address)
24 #define sg_dma_len(sg) ((sg)->length)
26 #define ISA_DMA_THRESHOLD (0x00ffffff)
28 #endif /* !(_I386_SCATTERLIST_H) */