arch/mips/include/asm/dma-coherence.h

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 2006  Ralf Baechle <ralf@linux-mips.org>
   7  *
   8  */
   9 #ifndef __ASM_DMA_COHERENCE_H
  10 #define __ASM_DMA_COHERENCE_H
  11
  12 #ifdef CONFIG_DMA_MAYBE_COHERENT
  13 extern int coherentio;
  14 extern int hw_coherentio;
  15 #else
  16 #ifdef CONFIG_DMA_COHERENT
  17 #define coherentio      1
  18 #else
  19 #define coherentio      0
  20 #endif
  21 #define hw_coherentio   0
  22 #endif /* CONFIG_DMA_MAYBE_COHERENT */
  23
  24 #endif