/*
* This routine handles various exception codes. It determines the address,
* and the problem, and then passes it off to one of the appropriate
* routines.
*/
void parisc_terminate(char *msg, struct pt_regs *regs, int code, unsigned long offset)
{
static spinlock_t terminate_lock = SPIN_LOCK_UNLOCKED;
set_eiem(0);
__cli();
spin_lock(&terminate_lock);
/* unlock the pdc lock if necessary */
pdc_emergency_unlock();
/* restart pdc console if necessary */
if (!console_drivers)
pdc_console_restart();
/* Not all switch paths will gutter the processor... */
switch(code){
case 1:
transfer_pim_to_trap_frame(regs);
break;
default:
/* Fall through */
break;
}
show_stack((unsigned long *)regs->gr[30]);
printk("\n");
printk(KERN_CRIT "%s: Code=%d regs=%p (Addr=" RFMT ")\n",
msg, code, regs, offset);
show_regs(regs);
spin_unlock(&terminate_lock);
/* put soft power button back under hardware control;
* if the user had pressed it once at any time, the
* system will shut down immediately right here. */
pdc_soft_power_button(0);
/* Gutter the processor... */
for(;;)
;
}
/*
* This routine is called from sys_reboot to actually turn off the
* machine
*/
void machine_power_off(void)
{
/* If there is a registered power off handler, call it. */
if(pm_power_off)
pm_power_off();
/* Put the soft power button back under hardware control.
* If the user had already pressed the power button, the
* following call will immediately power off. */
pdc_soft_power_button(0);
/* It seems we have no way to power the system off via
* software. The user has to press the button himself. */
printk(KERN_EMERG "System shut down completed.\n"
KERN_EMERG "Please power this system off now.");
}
/*
* This routine is called from sys_reboot to actually turn off the
* machine
*/
void machine_power_off(void)
{
/* If there is a registered power off handler, call it. */
if (chassis_power_off)
chassis_power_off();
/* Put the soft power button back under hardware control.
* If the user had already pressed the power button, the
* following call will immediately power off. */
pdc_soft_power_button(0);
pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN);
/* It seems we have no way to power the system off via
* software. The user has to press the button himself. */
printk(KERN_EMERG "System shut down completed.\n"
"Please power this system off now.");
/* prevent soft lockup/stalled CPU messages for endless loop. */
rcu_sysrq_start();
for (;;);
}
