1 #ifndef _SPARC_SCATTERLIST_H 2 #define _SPARC_SCATTERLIST_H 3 4 #include <asm/page.h> 5 #include <asm/types.h> 6 7 struct scatterlist { 8 #ifdef CONFIG_DEBUG_SG 9 unsigned long sg_magic; 10 #endif 11 unsigned long page_link; 12 unsigned int offset; 13 14 unsigned int length; 15 16 dma_addr_t dma_address; 17 __u32 dma_length; 18 }; 19 20 #define sg_dma_address(sg) ((sg)->dma_address) 21 #define sg_dma_len(sg) ((sg)->dma_length) 22 23 #define ISA_DMA_THRESHOLD (~0UL) 24 25 #define ARCH_HAS_SG_CHAIN 26 27 #endif /* !(_SPARC_SCATTERLIST_H) */ 28