scatterlist.h 474 B

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  1. #ifndef _M68KNOMMU_SCATTERLIST_H
  2. #define _M68KNOMMU_SCATTERLIST_H
  3. #include <linux/mm.h>
  4. #include <asm/types.h>
  5. struct scatterlist {
  6. struct page *page;
  7. unsigned int offset;
  8. dma_addr_t dma_address;
  9. unsigned int length;
  10. };
  11. #define sg_address(sg) (page_address((sg)->page) + (sg)->offset)
  12. #define sg_dma_address(sg) ((sg)->dma_address)
  13. #define sg_dma_len(sg) ((sg)->length)
  14. #define ISA_DMA_THRESHOLD (0xffffffff)
  15. #endif /* !(_M68KNOMMU_SCATTERLIST_H) */