include/asm-mips/watch.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) 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 char watch_available;
  22
  23 extern asmlinkage void __watch_set(unsigned long addr, enum wref_type ref);
  24 extern asmlinkage void __watch_clear(void);
  25 extern asmlinkage void __watch_reenable(void);
  26
  27 #define watch_set(addr, ref)                                    \
  28         if (watch_available)                                    \
  29                 __watch_set(addr, ref)
  30 #define watch_clear()                                           \
  31         if (watch_available)                                    \
  32                 __watch_clear()
  33 #define watch_reenable()                                        \
  34         if (watch_available)                                    \
  35                 __watch_reenable()
  36
  37 #endif /* __ASM_WATCH_H */