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C/C++ Source or Header  |  1999-09-17  |  719b  |  28 lines
  1. /*
  2.  * linux/include/asm-arm/arch-rpc/mmu.h
  3.  *
  4.  * Copyright (c) 1996,1997,1998 Russell King.
  5.  *
  6.  * Changelog:
  7.  *  20-10-1996    RMK    Created
  8.  *  31-12-1997    RMK    Fixed definitions to reduce warnings
  9.  *  11-01-1998    RMK    Uninlined to reduce hits on cache
  10.  *  08-02-1998    RMK    Added __virt_to_bus and __bus_to_virt
  11.  */
  12. #ifndef __ASM_ARCH_MMU_H
  13. #define __ASM_ARCH_MMU_H
  14.  
  15. extern unsigned long __virt_to_phys(unsigned long vpage);
  16. extern unsigned long __phys_to_virt(unsigned long ppage);
  17.  
  18. /*
  19.  * These are exactly the same on the RiscPC as the
  20.  * physical memory view.
  21.  */
  22. #define __virt_to_bus__is_a_macro
  23. #define __virt_to_bus(x) __virt_to_phys(x)
  24. #define __bus_to_virt__is_a_macro
  25. #define __bus_to_virt(x) __phys_to_virt(x)
  26.  
  27. #endif
  28.