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/*
* Copyright (c) 2012 NVIDIA CORPORATION. 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 as published by
* the Free Software Foundation; version 2 of the License.
*
* 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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include <linux/mutex.h>
#include <linux/module.h>
#include <linux/cpuquiet.h>
#include <linux/sysfs.h>
static DEFINE_MUTEX(userspace_mutex);
static int governor_set(unsigned int cpu, bool active)
{
mutex_lock(&userspace_mutex);
if (active)
cpuquiet_wake_cpu(cpu);
else
cpuquiet_quiesence_cpu(cpu);
mutex_unlock(&userspace_mutex);
return 0;
}
struct cpuquiet_governor userspace_governor = {
.name = "userspace",
.store_active = governor_set,
.owner = THIS_MODULE,
};
static int __init init_usermode(void)
{
return cpuquiet_register_governor(&userspace_governor);
}
static void __exit exit_usermode(void)
{
cpuquiet_unregister_governor(&userspace_governor);
}
MODULE_LICENSE("GPL");
module_init(init_usermode);
module_exit(exit_usermode);
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