memory.h
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上传日期:2009-04-28
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嵌入式Linux

开发平台:

Unix_Linux

  1. /*
  2.  * linux/include/asm-arm/arch-cl7500/memory.h
  3.  *
  4.  * Copyright (c) 1996,1997,1998 Russell King.
  5.  *
  6.  * Changelog:
  7.  *  20-Oct-1996 RMK Created
  8.  *  31-Dec-1997 RMK Fixed definitions to reduce warnings
  9.  *  11-Jan-1998 RMK Uninlined to reduce hits on cache
  10.  *  08-Feb-1998 RMK Added __virt_to_bus and __bus_to_virt
  11.  *  21-Mar-1999 RMK Renamed to memory.h
  12.  * RMK Added TASK_SIZE and PAGE_OFFSET
  13.  */
  14. #ifndef __ASM_ARCH_MEMORY_H
  15. #define __ASM_ARCH_MEMORY_H
  16. /*
  17.  * Physical DRAM offset.
  18.  */
  19. #define PHYS_OFFSET (0x10000000UL)
  20. /*
  21.  * These are exactly the same on the RiscPC as the
  22.  * physical memory view.
  23.  */
  24. #define __virt_to_bus(x) __virt_to_phys(x)
  25. #define __bus_to_virt(x) __phys_to_virt(x)
  26. #endif