include/asm-avr32/scatterlist.h

   1 #ifndef __ASM_AVR32_SCATTERLIST_H
   2 #define __ASM_AVR32_SCATTERLIST_H
   3
   4 #include <asm/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     dma_addr_t          dma_address;
  13     unsigned int        length;
  14 };
  15
  16 /* These macros should be used after a pci_map_sg call has been done
  17  * to get bus addresses of each of the SG entries and their lengths.
  18  * You should only work with the number of sg entries pci_map_sg
  19  * returns.
  20  */
  21 #define sg_dma_address(sg)      ((sg)->dma_address)
  22 #define sg_dma_len(sg)          ((sg)->length)
  23
  24 #define ISA_DMA_THRESHOLD (0xffffffff)
  25
  26 #endif /* __ASM_AVR32_SCATTERLIST_H */