LXR linux/arch/mips/include/asm/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) 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
  15void mips_install_watch_registers(struct task_struct *t);
  16void mips_read_watch_registers(void);
  17void mips_clear_watch_registers(void);
  18void 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