mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-03 12:46:47 +07:00
4ba115b1e1
As thermal drivers can be built as modules and also the thermal framework itself, building cpu cooling only as built-in can cause linking errors. For instance: * Generic Thermal sysfs driver * Generic Thermal sysfs driver (THERMAL) [M/n/y/?] m generic cpu cooling support (CPU_THERMAL) [N/y/?] (NEW) y with the following drive: CONFIG_OMAP_BANDGAP=m generates: ERROR: "cpufreq_cooling_unregister" [drivers/staging/omap-thermal/omap-thermal.ko] undefined! ERROR: "cpufreq_cooling_register" [drivers/staging/omap-thermal/omap-thermal.ko] undefined! This patch changes cpu cooling driver to allow it to be built as module. Reported-by: Enric Balletbo i Serra <eballetbo@gmail.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com> Reviewed-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
59 lines
2.0 KiB
C
59 lines
2.0 KiB
C
/*
|
|
* linux/include/linux/cpu_cooling.h
|
|
*
|
|
* Copyright (C) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com)
|
|
* Copyright (C) 2012 Amit Daniel <amit.kachhap@linaro.org>
|
|
*
|
|
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
* 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.,
|
|
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
|
*
|
|
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
*/
|
|
|
|
#ifndef __CPU_COOLING_H__
|
|
#define __CPU_COOLING_H__
|
|
|
|
#include <linux/thermal.h>
|
|
|
|
#define CPUFREQ_COOLING_START 0
|
|
#define CPUFREQ_COOLING_STOP 1
|
|
|
|
#if defined(CONFIG_CPU_THERMAL) || defined(CONFIG_CPU_THERMAL_MODULE)
|
|
/**
|
|
* cpufreq_cooling_register - function to create cpufreq cooling device.
|
|
* @clip_cpus: cpumask of cpus where the frequency constraints will happen
|
|
*/
|
|
struct thermal_cooling_device *cpufreq_cooling_register(
|
|
const struct cpumask *clip_cpus);
|
|
|
|
/**
|
|
* cpufreq_cooling_unregister - function to remove cpufreq cooling device.
|
|
* @cdev: thermal cooling device pointer.
|
|
*/
|
|
void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev);
|
|
#else /* !CONFIG_CPU_THERMAL */
|
|
static inline struct thermal_cooling_device *cpufreq_cooling_register(
|
|
const struct cpumask *clip_cpus)
|
|
{
|
|
return NULL;
|
|
}
|
|
static inline void cpufreq_cooling_unregister(
|
|
struct thermal_cooling_device *cdev)
|
|
{
|
|
return;
|
|
}
|
|
#endif /* CONFIG_CPU_THERMAL */
|
|
|
|
#endif /* __CPU_COOLING_H__ */
|