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C++ cpuidle_get_driver函数代码示例

本文整理汇总了C++中cpuidle_get_driver函数的典型用法代码示例。如果您正苦于以下问题:C++ cpuidle_get_driver函数的具体用法?C++ cpuidle_get_driver怎么用?C++ cpuidle_get_driver使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了cpuidle_get_driver函数的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: __cpuidle_register_device

/**
 * __cpuidle_register_device - internal register function called before register
 * and enable routines
 * @dev: the cpu
 *
 * cpuidle_lock mutex must be held before this is called
 */
static int __cpuidle_register_device(struct cpuidle_device *dev)
{
	int ret;
	struct sys_device *sys_dev = get_cpu_sysdev((unsigned long)dev->cpu);
	struct cpuidle_driver *cpuidle_driver = cpuidle_get_driver();

	if (!sys_dev)
		return -EINVAL;
	if (!try_module_get(cpuidle_driver->owner))
		return -EINVAL;

	init_completion(&dev->kobj_unregister);

	poll_idle_init(dev);

	per_cpu(cpuidle_devices, dev->cpu) = dev;
	list_add(&dev->device_list, &cpuidle_detected_devices);
	if ((ret = cpuidle_add_sysfs(sys_dev))) {
		module_put(cpuidle_driver->owner);
		return ret;
	}

	dev->registered = 1;
	return 0;
}
开发者ID:710leo,项目名称:LVS,代码行数:32,代码来源:cpuidle.c

示例2: powernv_cpuidle_add_cpu_notifier

static int powernv_cpuidle_add_cpu_notifier(struct notifier_block *n,
			unsigned long action, void *hcpu)
{
	int hotcpu = (unsigned long)hcpu;
	struct cpuidle_device *dev =
				per_cpu(cpuidle_devices, hotcpu);

	if (dev && cpuidle_get_driver()) {
		switch (action) {
		case CPU_ONLINE:
		case CPU_ONLINE_FROZEN:
			cpuidle_pause_and_lock();
			cpuidle_enable_device(dev);
			cpuidle_resume_and_unlock();
			break;

		case CPU_DEAD:
		case CPU_DEAD_FROZEN:
			cpuidle_pause_and_lock();
			cpuidle_disable_device(dev);
			cpuidle_resume_and_unlock();
			break;

		default:
			return NOTIFY_DONE;
		}
	}
	return NOTIFY_OK;
}
开发者ID:383530895,项目名称:linux,代码行数:29,代码来源:cpuidle-powernv.c

示例3: acpi_cpu_soft_notify

static int acpi_cpu_soft_notify(struct notifier_block *nfb,
		unsigned long action, void *hcpu)
{
	unsigned int cpu = (unsigned long)hcpu;
	struct acpi_processor *pr = per_cpu(processors, cpu);

	if (action == CPU_ONLINE && pr) {
		if (pr->flags.need_hotplug_init) {
			struct cpuidle_driver *idle_driver =
				cpuidle_get_driver();

			printk(KERN_INFO "Will online and init hotplugged "
			       "CPU: %d\n", pr->id);
			WARN(acpi_processor_start(pr), "Failed to start CPU:"
				" %d\n", pr->id);
			pr->flags.need_hotplug_init = 0;
			if (idle_driver && !strcmp(idle_driver->name,
						   "intel_idle")) {
				intel_idle_cpu_init(pr->id);
			}
		
		} else {
			acpi_processor_ppc_has_changed(pr, 0);
			acpi_processor_cst_has_changed(pr);
			acpi_processor_reevaluate_tstate(pr, action);
			acpi_processor_tstate_has_changed(pr);
		}
	}
	if (action == CPU_DEAD && pr) {
		
		acpi_processor_reevaluate_tstate(pr, action);
	}
	return NOTIFY_OK;
}
开发者ID:DirtyDroidX,项目名称:android_kernel_htc_m8ul,代码行数:34,代码来源:processor_driver.c

示例4: cpuidle_unregister_device

/**
 * cpuidle_unregister_device - unregisters a CPU's idle PM feature
 * @dev: the cpu
 */
void cpuidle_unregister_device(struct cpuidle_device *dev)
{
	struct device *cpu_dev;
	struct cpuidle_driver *cpuidle_driver = cpuidle_get_driver();

	if (!dev)
		return;
	cpu_dev = get_cpu_device((unsigned long)dev->cpu);
	if (!cpu_dev)
		return;
	if (dev->registered == 0)
		return;

	cpuidle_pause_and_lock();

	cpuidle_disable_device(dev);

	cpuidle_remove_sysfs(cpu_dev);
	list_del(&dev->device_list);
	wait_for_completion(&dev->kobj_unregister);
	per_cpu(cpuidle_devices, dev->cpu) = NULL;

	cpuidle_coupled_unregister_device(dev);

	cpuidle_resume_and_unlock();

	module_put(cpuidle_driver->owner);
}
开发者ID:Leoyzen,项目名称:Charm-Eye,代码行数:32,代码来源:cpuidle.c

示例5: cpuidle_idle_call

/**
 * cpuidle_idle_call - the main idle loop
 *
 * NOTE: no locks or semaphores should be used here
 * return non-zero on failure
 */
int cpuidle_idle_call(void)
{
	struct cpuidle_device *dev = __this_cpu_read(cpuidle_devices);
	struct cpuidle_driver *drv = cpuidle_get_driver();
	int next_state, entered_state;

	if (off)
		return -ENODEV;

	if (!initialized)
		return -ENODEV;

	/* check if the device is ready */
	if (!dev || !dev->enabled)
		return -EBUSY;

#if 0
	/* shows regressions, re-enable for 2.6.29 */
	/*
	 * run any timers that can be run now, at this point
	 * before calculating the idle duration etc.
	 */
	hrtimer_peek_ahead_timers();
#endif

	/* ask the governor for the next state */
	next_state = cpuidle_curr_governor->select(drv, dev);
	if (need_resched()) {
		local_irq_enable();
		return 0;
	}

	trace_power_start_rcuidle(POWER_CSTATE, next_state, dev->cpu);
	trace_cpu_idle_rcuidle(next_state, dev->cpu);

	if (need_resched()) {
		dev->last_residency = 0;
		local_irq_enable();
		entered_state = next_state;
		goto exit;
	}

	if (cpuidle_state_is_coupled(dev, drv, next_state))
		entered_state = cpuidle_enter_state_coupled(dev, drv,
							    next_state);
	else
		entered_state = cpuidle_enter_state(dev, drv, next_state);

	trace_power_end_rcuidle(dev->cpu);

exit:
	trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, dev->cpu);

	/* give the governor an opportunity to reflect on the outcome */
	if (cpuidle_curr_governor->reflect)
		cpuidle_curr_governor->reflect(dev, entered_state);

	return 0;
}
开发者ID:ench0,项目名称:android_kernel_samsung_hltet,代码行数:65,代码来源:cpuidle.c

示例6: acpi_processor_cst_has_changed

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

	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;
			dev = per_cpu(acpi_cpuidle_device, cpu);
			cpuidle_disable_device(dev);
		}

		/* Populate Updated C-state information */
		acpi_processor_get_power_info(pr);
		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) {
				dev = per_cpu(acpi_cpuidle_device, cpu);
				acpi_processor_setup_cpuidle_cx(_pr, dev);
				cpuidle_enable_device(dev);
			}
		}
		put_online_cpus();
		cpuidle_resume_and_unlock();
	}
开发者ID:AndroidGX,项目名称:SimpleGX-L-5.0.2_BOD6_G901F,代码行数:58,代码来源:processor_idle.c

示例7: acpi_processor_init

static int __init acpi_processor_init(void)
{
	int result = 0;

	if (acpi_disabled)
		return 0;

	memset(&errata, 0, sizeof(errata));

#ifdef CONFIG_SMP
	if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0,
				(struct acpi_table_header **)&madt)))
		madt = NULL;
#endif
#ifdef CONFIG_ACPI_PROCFS
	acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir);
	if (!acpi_processor_dir)
		return -ENOMEM;
#endif
	/*
	 * Check whether the system is DMI table. If yes, OSPM
	 * should not use mwait for CPU-states.
	 */
	dmi_check_system(processor_idle_dmi_table);

	if (!cpuidle_register_driver(&acpi_idle_driver)) {
		printk(KERN_DEBUG "ACPI: %s registered with cpuidle\n",
		       acpi_idle_driver.name);
	} else {
		printk(KERN_DEBUG "ACPI: acpi_idle yielding to %s",
		       cpuidle_get_driver()->name);
	}

	result = acpi_bus_register_driver(&acpi_processor_driver);
	if (result < 0)
		goto out_cpuidle;

	acpi_processor_install_hotplug_notify();

	acpi_thermal_cpufreq_init();

	acpi_processor_ppc_init();

	acpi_processor_throttling_init();

	return 0;

out_cpuidle:
	cpuidle_unregister_driver(&acpi_idle_driver);

#ifdef CONFIG_ACPI_PROCFS
	remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
#endif

	return result;
}
开发者ID:710leo,项目名称:LVS,代码行数:56,代码来源:processor_core.c

示例8: pseries_notify_cpuidle_add_cpu

int pseries_notify_cpuidle_add_cpu(int cpu)
{
	struct cpuidle_device *dev =
			per_cpu_ptr(pseries_cpuidle_devices, cpu);
	if (dev && cpuidle_get_driver()) {
		cpuidle_disable_device(dev);
		cpuidle_enable_device(dev);
	}
	return 0;
}
开发者ID:ArthySundaram,项目名称:chromeos-kvm,代码行数:10,代码来源:processor_idle.c

示例9: cpuidle_idle_call

/**
 * cpuidle_idle_call - the main idle loop
 *
 * NOTE: no locks or semaphores should be used here
 * return non-zero on failure
 */
int cpuidle_idle_call(void)
{
	struct cpuidle_device *dev = __this_cpu_read(cpuidle_devices);
	struct cpuidle_driver *drv = cpuidle_get_driver();
	int next_state, entered_state;

	if (off)
		return -ENODEV;

	if (!initialized)
		return -ENODEV;

	/* check if the device is ready */
	if (!dev || !dev->enabled)
		return -EBUSY;

	/* ask the governor for the next state */
	next_state = cpuidle_curr_governor->select(drv, dev);
	if (need_resched()) {
		dev->last_residency = 0;
		/* give the governor an opportunity to reflect on the outcome */
		if (cpuidle_curr_governor->reflect)
			cpuidle_curr_governor->reflect(dev, next_state);
		local_irq_enable();
		return 0;
	}

	trace_cpu_idle_rcuidle(next_state, dev->cpu);

	if (need_resched()) {
		dev->last_residency = 0;
		local_irq_enable();
		entered_state = next_state;
		goto exit;
	}

	if (cpuidle_state_is_coupled(dev, drv, next_state))
		entered_state = cpuidle_enter_state_coupled(dev, drv,
							    next_state);
	else
		entered_state = cpuidle_enter_state(dev, drv, next_state);

exit:
	trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, dev->cpu);

	/* give the governor an opportunity to reflect on the outcome */
	if (cpuidle_curr_governor->reflect)
		cpuidle_curr_governor->reflect(dev, entered_state);

	return 0;
}
开发者ID:skeevy420,项目名称:NebulaKernel,代码行数:57,代码来源:cpuidle.c

示例10: acpi_processor_cst_has_changed

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();
	}
开发者ID:DirtyDroidX,项目名称:android_kernel_htc_m8ul,代码行数:49,代码来源:processor_idle.c

示例11: cpuidle_disable_device

/**
 * cpuidle_disable_device - disables idle PM for a CPU
 * @dev: the CPU
 *
 * This function must be called between cpuidle_pause_and_lock and
 * cpuidle_resume_and_unlock when used externally.
 */
void cpuidle_disable_device(struct cpuidle_device *dev)
{
	if (!dev || !dev->enabled)
		return;
	if (!cpuidle_get_driver() || !cpuidle_curr_governor)
		return;

	dev->enabled = 0;

	if (cpuidle_curr_governor->disable)
		cpuidle_curr_governor->disable(dev);

	cpuidle_remove_state_sysfs(dev);
	enabled_devices--;
}
开发者ID:javilonas,项目名称:Thoth-GT-I9300-Sammy,代码行数:22,代码来源:cpuidle.c

示例12: update_smt_snooze_delay

void update_smt_snooze_delay(int cpu, int residency)
{
	struct cpuidle_driver *drv = cpuidle_get_driver();
	struct cpuidle_device *dev = per_cpu(cpuidle_devices, cpu);

	if (cpuidle_state_table != dedicated_states)
		return;

	if (residency < 0) {
		/* Disable the Nap state on that cpu */
		if (dev)
			dev->states_usage[1].disable = 1;
	} else
		if (drv)
			drv->states[1].target_residency = residency;
}
开发者ID:0x000000FF,项目名称:Linux4Edison,代码行数:16,代码来源:processor_idle.c

示例13: cpuidle_general_output

static void cpuidle_general_output(void)
{
	char *tmp;

	tmp = cpuidle_get_driver();
	if (!tmp) {
		printf(_("Could not determine cpuidle driver\n"));
		return;
	}

	printf(_("CPUidle driver: %s\n"), tmp);
	free(tmp);

	tmp = cpuidle_get_governor();
	if (!tmp) {
		printf(_("Could not determine cpuidle governor\n"));
		return;
	}

	printf(_("CPUidle governor: %s\n"), tmp);
	free(tmp);
}
开发者ID:513855417,项目名称:linux,代码行数:22,代码来源:cpuidle-info.c

示例14: acpi_cpu_soft_notify

static int acpi_cpu_soft_notify(struct notifier_block *nfb,
		unsigned long action, void *hcpu)
{
	unsigned int cpu = (unsigned long)hcpu;
	struct acpi_processor *pr = per_cpu(processors, cpu);

	if (action == CPU_ONLINE && pr) {
		/* CPU got physically hotplugged and onlined the first time:
		 * Initialize missing things
		 */
		if (pr->flags.need_hotplug_init) {
			struct cpuidle_driver *idle_driver =
				cpuidle_get_driver();

			printk(KERN_INFO "Will online and init hotplugged "
			       "CPU: %d\n", pr->id);
			WARN(acpi_processor_start(pr), "Failed to start CPU:"
				" %d\n", pr->id);
			pr->flags.need_hotplug_init = 0;
			if (idle_driver && !strcmp(idle_driver->name,
						   "intel_idle")) {
				intel_idle_cpu_init(pr->id);
			}
		/* Normal CPU soft online event */
		} else {
			acpi_processor_ppc_has_changed(pr, 0);
			acpi_processor_hotplug(pr);
			acpi_processor_reevaluate_tstate(pr, action);
			acpi_processor_tstate_has_changed(pr);
		}
	}
	if (action == CPU_DEAD && pr) {
		/* invalidate the flag.throttling after one CPU is offline */
		acpi_processor_reevaluate_tstate(pr, action);
	}
	return NOTIFY_OK;
}
开发者ID:kozmikkick,项目名称:tripndroid-endeavoru-3.6,代码行数:37,代码来源:processor_driver.c

示例15: acpi_processor_init

static int __init acpi_processor_init(void)
{
	int result = 0;

	if (acpi_disabled)
		return 0;

	memset(&errata, 0, sizeof(errata));

	if (!cpuidle_register_driver(&acpi_idle_driver)) {
		printk(KERN_DEBUG "ACPI: %s registered with cpuidle\n",
			acpi_idle_driver.name);
	} else {
		printk(KERN_DEBUG "ACPI: acpi_idle yielding to %s\n",
			cpuidle_get_driver()->name);
	}

	result = acpi_bus_register_driver(&acpi_processor_driver);
	if (result < 0)
		goto out_cpuidle;

	acpi_processor_install_hotplug_notify();

	acpi_thermal_cpufreq_init();

	acpi_processor_ppc_init();

	acpi_processor_throttling_init();

	return 0;

out_cpuidle:
	cpuidle_unregister_driver(&acpi_idle_driver);

	return result;
}
开发者ID:ANFS,项目名称:ANFS-kernel,代码行数:36,代码来源:processor_driver.c


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