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1da177e4 LT |
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 */ |