Merge "qcom: core_ctl: Add support functions for core control" (dc595df1) · Commits · e / devices / android_kernel_sony_msm8994

drivers/soc/qcom/Kconfig

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		@@ -614,6 +614,14 @@ config MSM_PACMAN
		This driver allows reconfiguration of the Bus Access Manager
		Low Speed Peripheral (BLSP) ownership.

		config MSM_CORE_CTL_HELPER
		tristate "Core control helper functions for dynamically hotplug CPUs"
		help
		Provide helper functions for core control driver. Core control
		driver dynamically hotplugs CPUs from kernel based on current
		system load and state. It also supports limiting min and
		max online CPUs from userspace.

		config MSM_PERFORMANCE
		tristate "Core control driver to support userspace hotplug requests"
		help

+1 −0

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		@@ -64,6 +64,7 @@ obj-$(CONFIG_MSM_OCMEM) += ocmem.o ocmem_allocator.o ocmem_notifier.o
		obj-$(CONFIG_MSM_OCMEM) += ocmem_sched.o ocmem_api.o ocmem_rdm.o ocmem_core.o

		obj-$(CONFIG_MSM_PERFORMANCE) += msm_performance.o
		obj-$(CONFIG_MSM_CORE_CTL_HELPER) += core_ctl_helper.o

		ifdef CONFIG_MSM_SUBSYSTEM_RESTART
		obj-y += subsystem_notif.o

0 → 100644

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		/*
		* Copyright (c) 2014, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		* only version 2 as published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*/

		#include <linux/cpu.h>
		#include <linux/cpufreq.h>
		#include <linux/ktime.h>
		#include <linux/hrtimer.h>
		#include <linux/module.h>
		#include <linux/init.h>
		#include <soc/qcom/core_ctl.h>

		void core_ctl_block_hotplug(void)
		{
		get_online_cpus();
		}
		EXPORT_SYMBOL(core_ctl_block_hotplug);

		void core_ctl_unblock_hotplug(void)
		{
		put_online_cpus();
		}
		EXPORT_SYMBOL(core_ctl_unblock_hotplug);

		s64 core_ctl_get_time(void)
		{
		return ktime_to_ms(ktime_get());
		}
		EXPORT_SYMBOL(core_ctl_get_time);

		struct cpufreq_policy *core_ctl_get_policy(int cpu)
		{
		return cpufreq_cpu_get(cpu);
		}
		EXPORT_SYMBOL(core_ctl_get_policy);

		void core_ctl_put_policy(struct cpufreq_policy *policy)
		{
		cpufreq_cpu_put(policy);
		}
		EXPORT_SYMBOL(core_ctl_put_policy);

		struct device *core_ctl_find_cpu_device(unsigned cpu)
		{
		return get_cpu_device(cpu);
		}
		EXPORT_SYMBOL(core_ctl_find_cpu_device);

		int __ref core_ctl_online_core(unsigned int cpu)
		{
		return cpu_up(cpu);
		}
		EXPORT_SYMBOL(core_ctl_online_core);

0 → 100644

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		/*
		* Copyright (c) 2014, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		* only version 2 as published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*/

		#ifndef __SOC_QCOM_CORE_CTL_H
		#define __SOC_QCOM_CORE_CTL_H

		extern void core_ctl_block_hotplug(void);
		extern void core_ctl_unblock_hotplug(void);
		extern s64 core_ctl_get_time(void);
		extern struct cpufreq_policy *core_ctl_get_policy(int cpu);
		extern void core_ctl_put_policy(struct cpufreq_policy *policy);
		extern struct device *core_ctl_find_cpu_device(unsigned cpu);
		extern int core_ctl_online_core(unsigned int cpu);

		#endif