1 /* SPDX-License-Identifier: GPL-2.0-only */ <<
2 /* 1 /*
3 * linux/include/linux/cpu_cooling.h 2 * linux/include/linux/cpu_cooling.h
4 * 3 *
5 * Copyright (C) 2012 Samsung Electronics Co 4 * Copyright (C) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com)
6 * Copyright (C) 2012 Amit Daniel <amit.kach 5 * Copyright (C) 2012 Amit Daniel <amit.kachhap@linaro.org>
7 * 6 *
8 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> 8 * This program is free software; you can redistribute it and/or modify
>> 9 * it under the terms of the GNU General Public License as published by
>> 10 * the Free Software Foundation; version 2 of the License.
>> 11 *
>> 12 * This program is distributed in the hope that it will be useful, but
>> 13 * WITHOUT ANY WARRANTY; without even the implied warranty of
>> 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
>> 15 * General Public License for more details.
>> 16 *
>> 17 * You should have received a copy of the GNU General Public License along
>> 18 * with this program; if not, write to the Free Software Foundation, Inc.,
>> 19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
9 * 20 *
10 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 21 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
11 */ 22 */
12 23
13 #ifndef __CPU_COOLING_H__ 24 #ifndef __CPU_COOLING_H__
14 #define __CPU_COOLING_H__ 25 #define __CPU_COOLING_H__
15 26
16 #include <linux/of.h> 27 #include <linux/of.h>
17 #include <linux/thermal.h> 28 #include <linux/thermal.h>
>> 29 #include <linux/cpumask.h>
18 30
19 struct cpufreq_policy; !! 31 typedef int (*get_static_t)(cpumask_t *cpumask, int interval,
>> 32 unsigned long voltage, u32 *power);
20 33
21 #ifdef CONFIG_CPU_FREQ_THERMAL !! 34 #ifdef CONFIG_CPU_THERMAL
22 /** 35 /**
23 * cpufreq_cooling_register - function to crea 36 * cpufreq_cooling_register - function to create cpufreq cooling device.
24 * @policy: cpufreq policy. !! 37 * @clip_cpus: cpumask of cpus where the frequency constraints will happen
25 */ 38 */
26 struct thermal_cooling_device * 39 struct thermal_cooling_device *
27 cpufreq_cooling_register(struct cpufreq_policy !! 40 cpufreq_cooling_register(const struct cpumask *clip_cpus);
28 41
29 /** !! 42 struct thermal_cooling_device *
30 * cpufreq_cooling_unregister - function to re !! 43 cpufreq_power_cooling_register(const struct cpumask *clip_cpus,
31 * @cdev: thermal cooling device pointer. !! 44 u32 capacitance, get_static_t plat_static_func);
32 */ <<
33 void cpufreq_cooling_unregister(struct thermal <<
34 45
35 /** 46 /**
36 * of_cpufreq_cooling_register - create cpufre 47 * of_cpufreq_cooling_register - create cpufreq cooling device based on DT.
37 * @policy: cpufreq policy. !! 48 * @np: a valid struct device_node to the cooling device device tree node.
>> 49 * @clip_cpus: cpumask of cpus where the frequency constraints will happen
38 */ 50 */
>> 51 #ifdef CONFIG_THERMAL_OF
39 struct thermal_cooling_device * 52 struct thermal_cooling_device *
40 of_cpufreq_cooling_register(struct cpufreq_pol !! 53 of_cpufreq_cooling_register(struct device_node *np,
>> 54 const struct cpumask *clip_cpus);
41 55
42 #else /* !CONFIG_CPU_FREQ_THERMAL */ !! 56 struct thermal_cooling_device *
>> 57 of_cpufreq_power_cooling_register(struct device_node *np,
>> 58 const struct cpumask *clip_cpus,
>> 59 u32 capacitance,
>> 60 get_static_t plat_static_func);
>> 61 #else
43 static inline struct thermal_cooling_device * 62 static inline struct thermal_cooling_device *
44 cpufreq_cooling_register(struct cpufreq_policy !! 63 of_cpufreq_cooling_register(struct device_node *np,
>> 64 const struct cpumask *clip_cpus)
45 { 65 {
46 return ERR_PTR(-ENOSYS); 66 return ERR_PTR(-ENOSYS);
47 } 67 }
48 68
49 static inline !! 69 static inline struct thermal_cooling_device *
50 void cpufreq_cooling_unregister(struct thermal !! 70 of_cpufreq_power_cooling_register(struct device_node *np,
>> 71 const struct cpumask *clip_cpus,
>> 72 u32 capacitance,
>> 73 get_static_t plat_static_func)
51 { 74 {
52 return; !! 75 return NULL;
53 } 76 }
>> 77 #endif
>> 78
>> 79 /**
>> 80 * cpufreq_cooling_unregister - function to remove cpufreq cooling device.
>> 81 * @cdev: thermal cooling device pointer.
>> 82 */
>> 83 void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev);
54 84
>> 85 unsigned long cpufreq_cooling_get_level(unsigned int cpu, unsigned int freq);
>> 86 #else /* !CONFIG_CPU_THERMAL */
55 static inline struct thermal_cooling_device * 87 static inline struct thermal_cooling_device *
56 of_cpufreq_cooling_register(struct cpufreq_pol !! 88 cpufreq_cooling_register(const struct cpumask *clip_cpus)
>> 89 {
>> 90 return ERR_PTR(-ENOSYS);
>> 91 }
>> 92 static inline struct thermal_cooling_device *
>> 93 cpufreq_power_cooling_register(const struct cpumask *clip_cpus,
>> 94 u32 capacitance, get_static_t plat_static_func)
57 { 95 {
58 return NULL; 96 return NULL;
59 } 97 }
60 #endif /* CONFIG_CPU_FREQ_THERMAL */ <<
61 98
62 struct cpuidle_driver; !! 99 static inline struct thermal_cooling_device *
>> 100 of_cpufreq_cooling_register(struct device_node *np,
>> 101 const struct cpumask *clip_cpus)
>> 102 {
>> 103 return ERR_PTR(-ENOSYS);
>> 104 }
63 105
64 #ifdef CONFIG_CPU_IDLE_THERMAL !! 106 static inline struct thermal_cooling_device *
65 void cpuidle_cooling_register(struct cpuidle_d !! 107 of_cpufreq_power_cooling_register(struct device_node *np,
66 #else /* CONFIG_CPU_IDLE_THERMAL */ !! 108 const struct cpumask *clip_cpus,
67 static inline void cpuidle_cooling_register(st !! 109 u32 capacitance,
>> 110 get_static_t plat_static_func)
>> 111 {
>> 112 return NULL;
>> 113 }
>> 114
>> 115 static inline
>> 116 void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)
>> 117 {
>> 118 return;
>> 119 }
>> 120 static inline
>> 121 unsigned long cpufreq_cooling_get_level(unsigned int cpu, unsigned int freq)
68 { 122 {
>> 123 return THERMAL_CSTATE_INVALID;
69 } 124 }
70 #endif /* CONFIG_CPU_IDLE_THERMAL */ !! 125 #endif /* CONFIG_CPU_THERMAL */
71 126
72 #endif /* __CPU_COOLING_H__ */ 127 #endif /* __CPU_COOLING_H__ */
73 128
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