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) 2008 David Daney
7  */
8 #ifndef _ASM_WATCH_H
9 #define _ASM_WATCH_H
10 
11 #include <linux/bitops.h>
12 
13 #include <asm/mipsregs.h>
14 
15 void mips_install_watch_registers(struct task_struct *t);
16 void mips_read_watch_registers(void);
17 void mips_clear_watch_registers(void);
18 void mips_probe_watch_registers(struct cpuinfo_mips *c);
19 
20 #ifdef CONFIG_HARDWARE_WATCHPOINTS
21 #define __restore_watch(task) do {					\
22 	if (unlikely(test_bit(TIF_LOAD_WATCH,				\
23 			      &task_thread_info(task)->flags))) {	\
24 		mips_install_watch_registers(task);			\
25 	}								\
26 } while (0)
27 
28 #else
29 #define __restore_watch(task) do {} while (0)
30 #endif
31 
32 #endif /* _ASM_WATCH_H */
33