__dead void
boot(int howto)
{
if (cold) {
if ((howto & RB_USERREQ) == 0)
howto |= RB_HALT;
goto haltsys;
}
/*
* If RB_NOSYNC was not specified sync the discs.
* Note: Unless cold is set to 1 here, syslogd will die during the
* unmount. It looks like syslogd is getting woken up only to find
* that it cannot page part of the binary in as the filesystem has
* been unmounted.
*/
if ((howto & RB_NOSYNC) == 0)
bootsync(howto);
if_downall();
uvm_shutdown();
splhigh();
cold = 1;
if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP)
dumpsys();
haltsys:
config_suspend_all(DVACT_POWERDOWN);
/* Make sure IRQ's are disabled */
IRQdisable;
if ((howto & RB_HALT) != 0) {
if ((howto & RB_POWERDOWN) != 0) {
board_powerdown();
printf("WARNING: powerdown failed!\n");
}
printf("The operating system has halted.\n");
printf("Please press any key to reboot.\n\n");
cnpollc(1);
cngetc();
cnpollc(0);
}
printf("rebooting...\n");
board_reset();
cpu_reset();
printf("reboot failed; spinning\n");
for (;;) ;
/* NOTREACHED */
}
void
boot(int howto)
{
struct device *mainbus;
if (cold) {
/*
* If the system is cold, just halt, unless the user
* explicitely asked for reboot.
*/
if ((howto & RB_USERREQ) == 0)
howto |= RB_HALT;
goto haltsys;
}
/*
* If RB_NOSYNC was not specified sync the discs.
* Note: Unless cold is set to 1 here, syslogd will die during the
* unmount. It looks like syslogd is getting woken up only to find
* that it cannot page part of the binary in as the filesystem has
* been unmounted.
*/
if (!(howto & RB_NOSYNC))
bootsync(howto);
if_downall();
uvm_shutdown();
/* Say NO to interrupts */
splhigh();
/* Do a dump if requested. */
if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP)
dumpsys();
haltsys:
doshutdownhooks();
mainbus = device_mainbus();
if (mainbus != NULL)
config_suspend(mainbus, DVACT_POWERDOWN);
/* Make sure IRQ's are disabled */
IRQdisable;
if (howto & RB_HALT) {
if (howto & RB_POWERDOWN) {
board_powerdown();
printf("WARNING: powerdown failed!\n");
}
printf("The operating system has halted.\n");
printf("Please press any key to reboot.\n\n");
cnpollc(1);
cngetc();
cnpollc(0);
}
printf("rebooting...\n");
board_reset();
cpu_reset();
printf("reboot failed; spinning\n");
while(1);
/*NOTREACHED*/
}