diff options
| author | David Daney <ddaney@avtrex.com> | 2008-09-23 00:05:54 -0700 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2008-10-11 16:18:56 +0100 |
| commit | 6aa3524c182c01b8b8b7c21c4da20c742a9b4d86 (patch) | |
| tree | 245fc4e9f26ad9e7a95e83087bfcc79528d1352e /arch/mips/include/asm/watch.h | |
| parent | 8192c9ea9ac44213d1266ecb64615519443979b3 (diff) | |
MIPS: Add HARDWARE_WATCHPOINTS definitions and support code.
This is the main support code for the patch. Here we just add the
code, the following patches hook it up.
Signed-off-by: David Daney <ddaney@avtrex.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
create mode 100644 arch/mips/include/asm/watch.h
create mode 100644 arch/mips/kernel/watch.c
Diffstat (limited to 'arch/mips/include/asm/watch.h')
| -rw-r--r-- | arch/mips/include/asm/watch.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/mips/include/asm/watch.h b/arch/mips/include/asm/watch.h new file mode 100644 index 00000000000..20126ec7935 --- /dev/null +++ b/arch/mips/include/asm/watch.h @@ -0,0 +1,32 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2008 David Daney + */ +#ifndef _ASM_WATCH_H +#define _ASM_WATCH_H + +#include <linux/bitops.h> + +#include <asm/mipsregs.h> + +void mips_install_watch_registers(void); +void mips_read_watch_registers(void); +void mips_clear_watch_registers(void); +void mips_probe_watch_registers(struct cpuinfo_mips *c); + +#ifdef CONFIG_HARDWARE_WATCHPOINTS +#define __restore_watch() do { \ + if (unlikely(test_bit(TIF_LOAD_WATCH, \ + ¤t_thread_info()->flags))) { \ + mips_install_watch_registers(); \ + } \ +} while (0) + +#else +#define __restore_watch() do {} while (0) +#endif + +#endif /* _ASM_WATCH_H */ |