LXR linux/arch/cris/kernel/process.c

   1/*
   2 *  linux/arch/cris/kernel/process.c
   3 *
   4 *  Copyright (C) 1995  Linus Torvalds
   5 *  Copyright (C) 2000-2002  Axis Communications AB
   6 *
   7 *  Authors:   Bjorn Wesen (bjornw@axis.com)
   8 *
   9 */
  10
  11/*
  12 * This file handles the architecture-dependent parts of process handling..
  13 */
  14
  15#include <linux/atomic.h>
  16#include <asm/pgtable.h>
  17#include <linux/uaccess.h>
  18#include <asm/irq.h>
  19#include <linux/module.h>
  20#include <linux/spinlock.h>
  21#include <linux/init_task.h>
  22#include <linux/sched.h>
  23#include <linux/fs.h>
  24#include <linux/user.h>
  25#include <linux/elfcore.h>
  26#include <linux/mqueue.h>
  27#include <linux/reboot.h>
  28#include <linux/rcupdate.h>
  29
  30//#define DEBUG
  31
  32extern void default_idle(void);
  33
  34void (*pm_power_off)(void);
  35EXPORT_SYMBOL(pm_power_off);
  36
  37void arch_cpu_idle(void)
  38{
  39        default_idle();
  40}
  41
  42void hard_reset_now (void);
  43
  44void machine_restart(char *cmd)
  45{
  46        hard_reset_now();
  47}
  48
  49/*
  50 * Similar to machine_power_off, but don't shut off power.  Add code
  51 * here to freeze the system for e.g. post-mortem debug purpose when
  52 * possible.  This halt has nothing to do with the idle halt.
  53 */
  54
  55void machine_halt(void)
  56{
  57}
  58
  59/* If or when software power-off is implemented, add code here.  */
  60
  61void machine_power_off(void)
  62{
  63}
  64
  65/*
  66 * When a process does an "exec", machine state like FPU and debug
  67 * registers need to be reset.  This is a hook function for that.
  68 * Currently we don't have any such state to reset, so this is empty.
  69 */
  70
  71void flush_thread(void)
  72{
  73}
  74
  75/* Fill in the fpu structure for a core dump. */
  76int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
  77{
  78        return 0;
  79}
  80