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   1 #ifndef _SPARC_SCATTERLIST_H
   2 #define _SPARC_SCATTERLIST_H
   3
   4 #include <linux/types.h>
   5
   6 struct scatterlist {
   7 #ifdef CONFIG_DEBUG_SG
   8         unsigned long sg_magic;
   9 #endif
  10         unsigned long page_link;
  11         unsigned int offset;
  12
  13         unsigned int length;
  14
  15         __u32 dvma_address; /* A place to hang host-specific addresses at. */
  16         __u32 dvma_length;
  17 };
  18
  19 #define sg_dma_address(sg) ((sg)->dvma_address)
  20 #define sg_dma_len(sg)     ((sg)->dvma_length)
  21
  22 #define ISA_DMA_THRESHOLD (~0UL)
  23
  24 #define ARCH_HAS_SG_CHAIN
  25
  26 #endif /* !(_SPARC_SCATTERLIST_H) */