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kernel/linux-rt-4.4.41/arch/microblaze/include/asm/dma.h 706 Bytes
5113f6f70   김현기   kernel add
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  /*
   * Copyright (C) 2006 Atmark Techno, Inc.
   *
   * This file is subject to the terms and conditions of the GNU General Public
   * License. See the file "COPYING" in the main directory of this archive
   * for more details.
   */
  
  #ifndef _ASM_MICROBLAZE_DMA_H
  #define _ASM_MICROBLAZE_DMA_H
  
  #ifndef CONFIG_MMU
  /* we don't have dma address limit. define it as zero to be
   * unlimited. */
  #define MAX_DMA_ADDRESS		(0)
  #else
  /* Virtual address corresponding to last available physical memory address.  */
  #define MAX_DMA_ADDRESS (CONFIG_KERNEL_START + memory_size - 1)
  #endif
  
  #ifdef CONFIG_PCI
  extern int isa_dma_bridge_buggy;
  #else
  #define isa_dma_bridge_buggy     (0)
  #endif
  
  #endif /* _ASM_MICROBLAZE_DMA_H */