include/asm-sparc64/scatterlist.h

   1 /* $Id: scatterlist.h,v 1.9 1999/12/17 12:32:15 jj Exp $ */
   2 #ifndef _SPARC64_SCATTERLIST_H
   3 #define _SPARC64_SCATTERLIST_H
   4
   5 #include <asm/page.h>
   6
   7 struct scatterlist {
   8     char *  address;    /* Location data is to be transferred to */
   9     char * alt_address; /* Location of actual if address is a
  10                          * dma indirect buffer.  NULL otherwise */
  11     unsigned int length;
  12
  13     __u32 dvma_address; /* A place to hang host-specific addresses at. */
  14     __u32 dvma_length;
  15 };
  16
  17 #define sg_dma_address(sg) ((sg)->dvma_address)
  18 #define sg_dma_len(sg)     ((sg)->dvma_length)
  19
  20 #define ISA_DMA_THRESHOLD       (~0UL)
  21
  22 #endif /* !(_SPARC64_SCATTERLIST_H) */