arch/riscv/kernel/reset.c

   1 /*
   2  * Copyright (C) 2012 Regents of the University of California
   3  *
   4  *   This program is free software; you can redistribute it and/or
   5  *   modify it under the terms of the GNU General Public License
   6  *   as published by the Free Software Foundation, version 2.
   7  *
   8  *   This program is distributed in the hope that it will be useful,
   9  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *   GNU General Public License for more details.
  12  */
  13
  14 #include <linux/reboot.h>
  15 #include <linux/export.h>
  16 #include <asm/sbi.h>
  17
  18 void (*pm_power_off)(void) = machine_power_off;
  19 EXPORT_SYMBOL(pm_power_off);
  20
  21 void machine_restart(char *cmd)
  22 {
  23         do_kernel_restart(cmd);
  24         while (1);
  25 }
  26
  27 void machine_halt(void)
  28 {
  29         machine_power_off();
  30 }
  31
  32 void machine_power_off(void)
  33 {
  34         sbi_shutdown();
  35         while (1);
  36 }