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C/C++ Source or Header  |  2006-08-11  |  841 b   |  36 lines
  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) 1996, 1997, 1998, 2000, 2001 by Ralf Baechle
  7.  */
  8. #ifndef _ASM_WATCH_H
  9. #define _ASM_WATCH_H
  10.  
  11. #include <linux/linkage.h>
  12.  
  13. /*
  14.  * Types of reference for watch_set()
  15.  */
  16. enum wref_type {
  17.     wr_save = 1,
  18.     wr_load = 2
  19. };
  20.  
  21. extern asmlinkage void __watch_set(unsigned long addr, enum wref_type ref);
  22. extern asmlinkage void __watch_clear(void);
  23. extern asmlinkage void __watch_reenable(void);
  24.  
  25. #define watch_set(addr, ref)                    \
  26.     if (cpu_has_watch)                    \
  27.         __watch_set(addr, ref)
  28. #define watch_clear()                        \
  29.     if (cpu_has_watch)                    \
  30.         __watch_clear()
  31. #define watch_reenable()                    \
  32.     if (cpu_has_watch)                    \
  33.         __watch_reenable()
  34.  
  35. #endif /* _ASM_WATCH_H */
  36.