C++ (Cpp) disabled_by_idle_boot_param 예제들

예제 #1

파일: processor_idle.c 프로젝트: 1n/xperia-m-source

int acpi_processor_cst_has_changed(struct acpi_processor *pr)
{
	int cpu;
	struct acpi_processor *_pr;

	if (disabled_by_idle_boot_param())
		return 0;

	if (!pr)
		return -EINVAL;

	if (nocst)
		return -ENODEV;

	if (!pr->flags.power_setup_done)
		return -ENODEV;

	/*
	 * FIXME:  Design the ACPI notification to make it once per
	 * system instead of once per-cpu.  This condition is a hack
	 * to make the code that updates C-States be called once.
	 */

	if (pr->id == 0 && cpuidle_get_driver() == &acpi_idle_driver) {

		cpuidle_pause_and_lock();
		/* Protect against cpu-hotplug */
		get_online_cpus();

		/* Disable all cpuidle devices */
		for_each_online_cpu(cpu) {
			_pr = per_cpu(processors, cpu);
			if (!_pr || !_pr->flags.power_setup_done)
				continue;
			cpuidle_disable_device(&_pr->power.dev);
		}

		/* Populate Updated C-state information */
		acpi_processor_setup_cpuidle_states(pr);

		/* Enable all cpuidle devices */
		for_each_online_cpu(cpu) {
			_pr = per_cpu(processors, cpu);
			if (!_pr || !_pr->flags.power_setup_done)
				continue;
			acpi_processor_get_power_info(_pr);
			if (_pr->flags.power) {
				acpi_processor_setup_cpuidle_cx(_pr);
				cpuidle_enable_device(&_pr->power.dev);
			}
		}
		put_online_cpus();
		cpuidle_resume_and_unlock();
	}

예제 #2

파일: processor_idle.c 프로젝트: DirtyDroidX/android_kernel_htc_m8ul

int acpi_processor_cst_has_changed(struct acpi_processor *pr)
{
	int cpu;
	struct acpi_processor *_pr;

	if (disabled_by_idle_boot_param())
		return 0;

	if (!pr)
		return -EINVAL;

	if (nocst)
		return -ENODEV;

	if (!pr->flags.power_setup_done)
		return -ENODEV;


	if (pr->id == 0 && cpuidle_get_driver() == &acpi_idle_driver) {

		cpuidle_pause_and_lock();
		
		get_online_cpus();

		
		for_each_online_cpu(cpu) {
			_pr = per_cpu(processors, cpu);
			if (!_pr || !_pr->flags.power_setup_done)
				continue;
			cpuidle_disable_device(&_pr->power.dev);
		}

		
		acpi_processor_setup_cpuidle_states(pr);

		
		for_each_online_cpu(cpu) {
			_pr = per_cpu(processors, cpu);
			if (!_pr || !_pr->flags.power_setup_done)
				continue;
			acpi_processor_get_power_info(_pr);
			if (_pr->flags.power) {
				acpi_processor_setup_cpuidle_cx(_pr);
				cpuidle_enable_device(&_pr->power.dev);
			}
		}
		put_online_cpus();
		cpuidle_resume_and_unlock();
	}

예제 #3

파일: processor_idle.c 프로젝트: kozmikkick/eternityprj-kernel-endeavoru-128

int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
			      struct acpi_device *device)
{
	acpi_status status = 0;
	static int first_run;

	if (disabled_by_idle_boot_param())
		return 0;

	if (!first_run) {
		dmi_check_system(processor_power_dmi_table);
		max_cstate = acpi_processor_cstate_check(max_cstate);
		if (max_cstate < ACPI_C_STATES_MAX)
			printk(KERN_NOTICE
			       "ACPI: processor limited to max C-state %d\n",
			       max_cstate);
		first_run++;
	}

	if (!pr)
		return -EINVAL;

	if (acpi_gbl_FADT.cst_control && !nocst) {
		status =
		    acpi_os_write_port(acpi_gbl_FADT.smi_command, acpi_gbl_FADT.cst_control, 8);
		if (ACPI_FAILURE(status)) {
			ACPI_EXCEPTION((AE_INFO, status,
					"Notifying BIOS of _CST ability failed"));
		}
	}

	acpi_processor_get_power_info(pr);
	pr->flags.power_setup_done = 1;

	/*
	 * Install the idle handler if processor power management is supported.
	 * Note that we use previously set idle handler will be used on
	 * platforms that only support C1.
	 */
	if (pr->flags.power) {
		acpi_processor_setup_cpuidle(pr);
		if (cpuidle_register_device(&pr->power.dev))
			return -EIO;
	}
	return 0;
}

예제 #4

파일: processor_idle.c 프로젝트: AlexShiLucky/linux

int acpi_processor_hotplug(struct acpi_processor *pr)
{
	int ret = 0;
	struct cpuidle_device *dev;

	if (disabled_by_idle_boot_param())
		return 0;

	if (!pr->flags.power_setup_done)
		return -ENODEV;

	dev = per_cpu(acpi_cpuidle_device, pr->id);
	cpuidle_pause_and_lock();
	cpuidle_disable_device(dev);
	ret = acpi_processor_get_power_info(pr);
	if (!ret && pr->flags.power) {
		acpi_processor_setup_cpuidle_dev(pr, dev);
		ret = cpuidle_enable_device(dev);
	}
	cpuidle_resume_and_unlock();

	return ret;
}