1. 根目录:
2. arch
3. arm
4. mach-msm
5. include
6. mach
7. system.h

/* arch/arm/mach-msm/include/mach/system.h
 *
 * Copyright (C) 2007 Google, Inc.
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */
void arch_idle(void);

/* low level hardware reset hook -- for example, hitting the
 * PSHOLD line on the PMIC to hard reset the system
 */
extern void (*msm_hw_reset_hook)(void);