scatterlist.h 495 B

123456789101112131415161718192021222324252627
  1. #ifndef _SPARC_SCATTERLIST_H
  2. #define _SPARC_SCATTERLIST_H
  3. #include <asm/page.h>
  4. #include <asm/types.h>
  5. struct scatterlist {
  6. #ifdef CONFIG_DEBUG_SG
  7. unsigned long sg_magic;
  8. #endif
  9. unsigned long page_link;
  10. unsigned int offset;
  11. unsigned int length;
  12. dma_addr_t dma_address;
  13. __u32 dma_length;
  14. };
  15. #define sg_dma_address(sg) ((sg)->dma_address)
  16. #define sg_dma_len(sg) ((sg)->dma_length)
  17. #define ISA_DMA_THRESHOLD (~0UL)
  18. #define ARCH_HAS_SG_CHAIN
  19. #endif /* !(_SPARC_SCATTERLIST_H) */