C++ (Cpp) check_and_cede_processor Exemples

Exemple #1

Fichier : cpuidle-pseries.c Projet : 0x000000FF/edison-linux

static int dedicated_cede_loop(struct cpuidle_device *dev,
				struct cpuidle_driver *drv,
				int index)
{
	unsigned long in_purr;

	idle_loop_prolog(&in_purr);
	get_lppaca()->donate_dedicated_cpu = 1;

	HMT_medium();
	check_and_cede_processor();

	get_lppaca()->donate_dedicated_cpu = 0;

	idle_loop_epilog(in_purr);

	return index;
}

Exemple #2

Fichier : processor_idle.c Projet : ArthySundaram/chromeos-kvm

static int dedicated_cede_loop(struct cpuidle_device *dev,
				struct cpuidle_driver *drv,
				int index)
{
	unsigned long in_purr;
	ktime_t kt_before;

	idle_loop_prolog(&in_purr, &kt_before);
	get_lppaca()->donate_dedicated_cpu = 1;

	ppc64_runlatch_off();
	HMT_medium();
	check_and_cede_processor();

	get_lppaca()->donate_dedicated_cpu = 0;
	dev->last_residency =
		(int)idle_loop_epilog(in_purr, kt_before);
	return index;
}

Exemple #3

Fichier : cpuidle-pseries.c Projet : 0x000000FF/edison-linux

static int shared_cede_loop(struct cpuidle_device *dev,
			struct cpuidle_driver *drv,
			int index)
{
	unsigned long in_purr;

	idle_loop_prolog(&in_purr);

	/*
	 * Yield the processor to the hypervisor.  We return if
	 * an external interrupt occurs (which are driven prior
	 * to returning here) or if a prod occurs from another
	 * processor. When returning here, external interrupts
	 * are enabled.
	 */
	check_and_cede_processor();

	idle_loop_epilog(in_purr);

	return index;
}