C++ (Cpp) set_cpu_current_state Exemples

Exemple #1

Fichier : smp.c Projet : 1703011/asuswrt-merlin

static void __devinit smp_xics_setup_cpu(int cpu)
{
	if (cpu != boot_cpuid)
		xics_setup_cpu();

	if (firmware_has_feature(FW_FEATURE_SPLPAR))
		vpa_init(cpu);

	cpumask_clear_cpu(cpu, of_spin_mask);
	set_cpu_current_state(cpu, CPU_STATE_ONLINE);
	set_default_offline_state(cpu);

}

Exemple #2

Fichier : smp.c Projet : openube/android_kernel_sony_c2305

static void __devinit smp_xics_setup_cpu(int cpu)
{
	if (cpu != boot_cpuid)
		xics_setup_cpu();

	if (firmware_has_feature(FW_FEATURE_SPLPAR))
		vpa_init(cpu);

	cpumask_clear_cpu(cpu, of_spin_mask);
#ifdef CONFIG_HOTPLUG_CPU
	set_cpu_current_state(cpu, CPU_STATE_ONLINE);
	set_default_offline_state(cpu);
#endif
	pseries_notify_cpuidle_add_cpu(cpu);
}

Exemple #3

Fichier : smp.c Projet : 168519/linux

static void smp_xics_setup_cpu(int cpu)
{
	if (cpu != boot_cpuid)
		xics_setup_cpu();
	if (cpu_has_feature(CPU_FTR_DBELL))
		doorbell_setup_this_cpu();

	if (firmware_has_feature(FW_FEATURE_SPLPAR))
		vpa_init(cpu);

	cpumask_clear_cpu(cpu, of_spin_mask);
#ifdef CONFIG_HOTPLUG_CPU
	set_cpu_current_state(cpu, CPU_STATE_ONLINE);
	set_default_offline_state(cpu);
#endif
}

Exemple #4

Fichier : smp.c Projet : 150balbes/Amlogic_s905-kernel

static void smp_setup_cpu(int cpu)
{
	if (xive_enabled())
		xive_smp_setup_cpu();
	else if (cpu != boot_cpuid)
		xics_setup_cpu();

	if (firmware_has_feature(FW_FEATURE_SPLPAR))
		vpa_init(cpu);

	cpumask_clear_cpu(cpu, of_spin_mask);
#ifdef CONFIG_HOTPLUG_CPU
	set_cpu_current_state(cpu, CPU_STATE_ONLINE);
	set_default_offline_state(cpu);
#endif
}

Exemple #5

Fichier : hotplug-cpu.c Projet : Daniel-Abrecht/linux

static void pseries_mach_cpu_die(void)
{
	unsigned int cpu = smp_processor_id();
	unsigned int hwcpu = hard_smp_processor_id();
	u8 cede_latency_hint = 0;

	local_irq_disable();
	idle_task_exit();
	if (xive_enabled())
		xive_teardown_cpu();
	else
		xics_teardown_cpu();

	if (get_preferred_offline_state(cpu) == CPU_STATE_INACTIVE) {
		set_cpu_current_state(cpu, CPU_STATE_INACTIVE);
		if (ppc_md.suspend_disable_cpu)
			ppc_md.suspend_disable_cpu();

		cede_latency_hint = 2;

		get_lppaca()->idle = 1;
		if (!lppaca_shared_proc(get_lppaca()))
			get_lppaca()->donate_dedicated_cpu = 1;

		while (get_preferred_offline_state(cpu) == CPU_STATE_INACTIVE) {
			while (!prep_irq_for_idle()) {
				local_irq_enable();
				local_irq_disable();
			}

			extended_cede_processor(cede_latency_hint);
		}

		local_irq_disable();

		if (!lppaca_shared_proc(get_lppaca()))
			get_lppaca()->donate_dedicated_cpu = 0;
		get_lppaca()->idle = 0;

		if (get_preferred_offline_state(cpu) == CPU_STATE_ONLINE) {
			unregister_slb_shadow(hwcpu);

			hard_irq_disable();
			/*
			 * Call to start_secondary_resume() will not return.
			 * Kernel stack will be reset and start_secondary()
			 * will be called to continue the online operation.
			 */
			start_secondary_resume();
		}
	}

	/* Requested state is CPU_STATE_OFFLINE at this point */
	WARN_ON(get_preferred_offline_state(cpu) != CPU_STATE_OFFLINE);

	set_cpu_current_state(cpu, CPU_STATE_OFFLINE);
	unregister_slb_shadow(hwcpu);
	rtas_stop_self();

	/* Should never get here... */
	BUG();
	for(;;);
}