static void freeze_enter(void)
{
spin_lock_irq(&suspend_freeze_lock);
if (pm_wakeup_pending())
goto out;
suspend_freeze_state = FREEZE_STATE_ENTER;
spin_unlock_irq(&suspend_freeze_lock);
get_online_cpus();
cpuidle_resume();
/* Push all the CPUs into the idle loop. */
wake_up_all_idle_cpus();
pr_debug("PM: suspend-to-idle\n");
/* Make the current CPU wait so it can enter the idle loop too. */
wait_event(suspend_freeze_wait_head,
suspend_freeze_state == FREEZE_STATE_WAKE);
pr_debug("PM: resume from suspend-to-idle\n");
cpuidle_pause();
put_online_cpus();
spin_lock_irq(&suspend_freeze_lock);
out:
suspend_freeze_state = FREEZE_STATE_NONE;
spin_unlock_irq(&suspend_freeze_lock);
}
static void s2idle_enter(void)
{
trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_TO_IDLE, true);
raw_spin_lock_irq(&s2idle_lock);
if (pm_wakeup_pending())
goto out;
s2idle_state = S2IDLE_STATE_ENTER;
raw_spin_unlock_irq(&s2idle_lock);
get_online_cpus();
cpuidle_resume();
/* Push all the CPUs into the idle loop. */
wake_up_all_idle_cpus();
/* Make the current CPU wait so it can enter the idle loop too. */
swait_event_exclusive(s2idle_wait_head,
s2idle_state == S2IDLE_STATE_WAKE);
cpuidle_pause();
put_online_cpus();
raw_spin_lock_irq(&s2idle_lock);
out:
s2idle_state = S2IDLE_STATE_NONE;
raw_spin_unlock_irq(&s2idle_lock);
trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_TO_IDLE, false);
}
static void freeze_enter(void)
{
cpuidle_use_deepest_state(true);
cpuidle_resume();
wait_event(suspend_freeze_wait_head, suspend_freeze_wake);
cpuidle_pause();
cpuidle_use_deepest_state(false);
}
static int platform_cpu_up_notify (struct notifier_block *nfb,
unsigned long status, void *cpuid)
{
unsigned int cpu = (unsigned int)cpuid;
/*printk(KERN_INFO"[CPU %d] %s : cpu %d change to status %ld.\n", this_cpu, __FUNCTION__, cpu, status);*/
switch(status){
case CPU_UP_PREPARE:
case CPU_UP_PREPARE_FROZEN:
cpuidle_pause();
#ifdef ACPU_32_BIT_CPUILDE
clr_cluster_idle_bit(cpuid>=4?1:0);
#endif
if((cpu>3)&&(g_cluster_pd_stat[1] == 1))
{
platform_cluster_power_up(1);
}
if((cpu<=3)&&(g_cluster_pd_stat[0] == 1))
{
platform_cluster_power_up(0);
}
printk(KERN_INFO"platform_cpu_power_on begin...\n");
platform_cpu_power_on(cpu);
printk(KERN_INFO"platform_cpu_power_on end...\n");
break;
case CPU_ONLINE:
case CPU_ONLINE_FROZEN:
case CPU_UP_CANCELED:
case CPU_UP_CANCELED_FROZEN:
cpuidle_resume();
break;
default:
/*just pass other event*/
break;
}
return NOTIFY_DONE;
}
static void freeze_enter(void)
{
cpuidle_resume();
wait_event(suspend_freeze_wait_head, suspend_freeze_wake);
cpuidle_pause();
}
