/**
* copyback_post - post atomic-restore actions
*
* After doing the atomic restore, we have a few more things to do:
* 1) We want to retain some values across the restore, so we now copy
* these from the nosave variables to the normal ones.
* 2) Set the status flags.
* 3) Resume devices.
* 4) Tell userui so it can redraw & restore settings.
* 5) Reread the page cache.
**/
void copyback_post(void)
{
struct toi_boot_kernel_data *bkd = (struct toi_boot_kernel_data *)boot_kernel_data_buffer;
if (toi_activate_storage(1))
panic("Failed to reactivate our storage.");
toi_post_atomic_restore_modules(bkd);
toi_cond_pause(1, "About to reload secondary pagedir.");
if (read_pageset2(0))
panic("Unable to successfully reread the page cache.");
/*
* If the user wants to sleep again after resuming from full-off,
* it's most likely to be in order to suspend to ram, so we'll
* do this check after loading pageset2, to give them the fastest
* wakeup when they are ready to use the computer again.
*/
toi_check_resleep();
}
static void __toi_power_down(int method)
{
int error;
toi_cond_pause(1, test_action_state(TOI_REBOOT) ? "Ready to reboot." :
"Powering down.");
if (test_result_state(TOI_ABORTED))
goto out;
if (test_action_state(TOI_REBOOT))
kernel_restart(NULL);
switch (method) {
case 0:
break;
case 3:
/*
* Re-read the overwritten part of pageset2 to make post-resume
* faster.
*/
if (read_pageset2(1))
panic("Attempt to reload pagedir 2 failed. "
"Try rebooting.");
pm_prepare_console();
error = pm_notifier_call_chain(PM_SUSPEND_PREPARE);
if (!error) {
pm_restore_gfp_mask();
error = suspend_devices_and_enter(PM_SUSPEND_MEM);
pm_restrict_gfp_mask();
if (!error)
did_suspend_to_both = 1;
}
pm_notifier_call_chain(PM_POST_SUSPEND);
pm_restore_console();
// jonathan.jmchen: FIXME, Create API to add another wakeup source to power down,
// if system is idle after xxx (e.g., 5 min) without user interaction!!
/* Success - we're now post-resume-from-ram */
if (did_suspend_to_both)
return;
/* Failed to suspend to ram - do normal power off */
break;
case 4:
/*
* If succeeds, doesn't return. If fails, do a simple
* powerdown.
*/
hibernation_platform_enter();
break;
case 5:
/* Historic entry only now */
break;
}
if (method && method != 5)
toi_cond_pause(1,
"Falling back to alternate power off method.");
if (test_result_state(TOI_ABORTED))
goto out;
kernel_power_off();
kernel_halt();
toi_cond_pause(1, "Powerdown failed.");
while (1)
cpu_relax();
out:
if (read_pageset2(1))
panic("Attempt to reload pagedir 2 failed. Try rebooting.");
return;
}
