include/asm-ppc64/scatterlist.h

   1 #ifndef _PPC64_SCATTERLIST_H
   2 #define _PPC64_SCATTERLIST_H
   3
   4 /*
   5  * Copyright (C) 2001 PPC64 Team, IBM Corp
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version
  10  * 2 of the License, or (at your option) any later version.
  11  */
  12
  13 #include <linux/types.h>
  14 #include <asm/dma.h>
  15
  16 struct scatterlist {
  17         struct page *page;
  18         unsigned int offset;
  19         unsigned int length;
  20
  21         /* For TCE support */
  22         u32 dma_address;
  23         u32 dma_length;
  24 };
  25
  26 #define sg_dma_address(sg)      ((sg)->dma_address)
  27 #define sg_dma_len(sg)          ((sg)->dma_length)
  28
  29 #define ISA_DMA_THRESHOLD       (~0UL)
  30
  31 #endif /* !(_PPC64_SCATTERLIST_H) */