scatterlist.h 582 B

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  1. #ifndef __ASM_AVR32_SCATTERLIST_H
  2. #define __ASM_AVR32_SCATTERLIST_H
  3. struct scatterlist {
  4. struct page *page;
  5. unsigned int offset;
  6. dma_addr_t dma_address;
  7. unsigned int length;
  8. };
  9. /* These macros should be used after a pci_map_sg call has been done
  10. * to get bus addresses of each of the SG entries and their lengths.
  11. * You should only work with the number of sg entries pci_map_sg
  12. * returns.
  13. */
  14. #define sg_dma_address(sg) ((sg)->dma_address)
  15. #define sg_dma_len(sg) ((sg)->length)
  16. #define ISA_DMA_THRESHOLD (0xffffffff)
  17. #endif /* __ASM_AVR32_SCATTERLIST_H */