59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
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/*
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* Copyright (C) 2016 Samsung Electronics, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/mutex.h>
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#include <linux/pm_qos.h>
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#include "tz_boost.h"
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#include "tz_hotplug.h"
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static int tz_boost_users = 0;
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static struct pm_qos_request tz_boost_qos;
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static unsigned int cpu_boost_mask;
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static DEFINE_MUTEX(tz_boost_lock);
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void tz_boost_set_boost_mask(unsigned int big_cpus_mask)
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{
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cpu_boost_mask = big_cpus_mask;
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}
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void tz_boost_enable(void)
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{
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mutex_lock(&tz_boost_lock);
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if (!tz_boost_users) {
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tz_hotplug_update_nwd_cpu_mask(cpu_boost_mask);
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pm_qos_add_request(&tz_boost_qos, TZ_BOOST_CPU_FREQ_MIN,
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TZ_BOOST_CPU_FREQ_MAX_DEFAULT_VALUE);
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}
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tz_boost_users++;
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mutex_unlock(&tz_boost_lock);
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}
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void tz_boost_disable(void)
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{
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mutex_lock(&tz_boost_lock);
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tz_boost_users--;
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BUG_ON(tz_boost_users < 0);
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if (!tz_boost_users) {
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pm_qos_remove_request(&tz_boost_qos);
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tz_hotplug_update_nwd_cpu_mask(0x0);
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}
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mutex_unlock(&tz_boost_lock);
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}
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