58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/*
|
|
* 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>
|
|
|
|
static int governor_set(unsigned int cpu, bool active)
|
|
{
|
|
int err;
|
|
|
|
if (active)
|
|
err = cpuquiet_wake_cpu(cpu, true);
|
|
else
|
|
err = cpuquiet_quiesce_cpu(cpu, true);
|
|
|
|
return err;
|
|
}
|
|
|
|
static 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");
|
|
#ifdef CONFIG_CPU_QUIET_DEFAULT_GOV_USERSPACE
|
|
fs_initcall(init_usermode);
|
|
#else
|
|
module_init(init_usermode);
|
|
#endif
|
|
module_exit(exit_usermode);
|