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 <asm/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 32 extern void default_idle(void); 33 34 void (*pm_power_off)(void); 35 EXPORT_SYMBOL(pm_power_off); 36 arch_cpu_idle(void)37void arch_cpu_idle(void) 38 { 39 default_idle(); 40 } 41 42 void hard_reset_now (void); 43 machine_restart(char * cmd)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 machine_halt(void)55void machine_halt(void) 56 { 57 } 58 59 /* If or when software power-off is implemented, add code here. */ 60 machine_power_off(void)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 flush_thread(void)71void flush_thread(void) 72 { 73 } 74 75 /* Fill in the fpu structure for a core dump. */ dump_fpu(struct pt_regs * regs,elf_fpregset_t * fpu)76int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu) 77 { 78 return 0; 79 } 80