Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#include <linux/pm_qos.h>
3
4static inline void device_pm_init_common(struct device *dev)
5{
6 if (!dev->power.early_init) {
7 spin_lock_init(&dev->power.lock);
8 dev->power.qos = NULL;
9 dev->power.early_init = true;
10 }
11}
12
13#ifdef CONFIG_PM
14
15static inline void pm_runtime_early_init(struct device *dev)
16{
17 dev->power.disable_depth = 1;
18 device_pm_init_common(dev);
19}
20
21extern void pm_runtime_init(struct device *dev);
22extern void pm_runtime_reinit(struct device *dev);
23extern void pm_runtime_remove(struct device *dev);
24extern u64 pm_runtime_active_time(struct device *dev);
25
26#define WAKE_IRQ_DEDICATED_ALLOCATED BIT(0)
27#define WAKE_IRQ_DEDICATED_MANAGED BIT(1)
28#define WAKE_IRQ_DEDICATED_MASK (WAKE_IRQ_DEDICATED_ALLOCATED | \
29 WAKE_IRQ_DEDICATED_MANAGED)
30
31struct wake_irq {
32 struct device *dev;
33 unsigned int status;
34 int irq;
35 const char *name;
36};
37
38extern void dev_pm_arm_wake_irq(struct wake_irq *wirq);
39extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq);
40extern void dev_pm_enable_wake_irq_check(struct device *dev,
41 bool can_change_status);
42extern void dev_pm_disable_wake_irq_check(struct device *dev);
43
44#ifdef CONFIG_PM_SLEEP
45
46extern void device_wakeup_attach_irq(struct device *dev, struct wake_irq *wakeirq);
47extern void device_wakeup_detach_irq(struct device *dev);
48extern void device_wakeup_arm_wake_irqs(void);
49extern void device_wakeup_disarm_wake_irqs(void);
50
51#else
52
53static inline void device_wakeup_attach_irq(struct device *dev,
54 struct wake_irq *wakeirq) {}
55
56static inline void device_wakeup_detach_irq(struct device *dev)
57{
58}
59
60#endif /* CONFIG_PM_SLEEP */
61
62/*
63 * sysfs.c
64 */
65
66extern int dpm_sysfs_add(struct device *dev);
67extern void dpm_sysfs_remove(struct device *dev);
68extern void rpm_sysfs_remove(struct device *dev);
69extern int wakeup_sysfs_add(struct device *dev);
70extern void wakeup_sysfs_remove(struct device *dev);
71extern int pm_qos_sysfs_add_resume_latency(struct device *dev);
72extern void pm_qos_sysfs_remove_resume_latency(struct device *dev);
73extern int pm_qos_sysfs_add_flags(struct device *dev);
74extern void pm_qos_sysfs_remove_flags(struct device *dev);
75extern int pm_qos_sysfs_add_latency_tolerance(struct device *dev);
76extern void pm_qos_sysfs_remove_latency_tolerance(struct device *dev);
77extern int dpm_sysfs_change_owner(struct device *dev, kuid_t kuid, kgid_t kgid);
78
79#else /* CONFIG_PM */
80
81static inline void pm_runtime_early_init(struct device *dev)
82{
83 device_pm_init_common(dev);
84}
85
86static inline void pm_runtime_init(struct device *dev) {}
87static inline void pm_runtime_reinit(struct device *dev) {}
88static inline void pm_runtime_remove(struct device *dev) {}
89
90static inline int dpm_sysfs_add(struct device *dev) { return 0; }
91static inline void dpm_sysfs_remove(struct device *dev) {}
92static inline int dpm_sysfs_change_owner(struct device *dev, kuid_t kuid,
93 kgid_t kgid) { return 0; }
94
95#endif
96
97#ifdef CONFIG_PM_SLEEP
98
99/* kernel/power/main.c */
100extern int pm_async_enabled;
101
102/* drivers/base/power/main.c */
103extern struct list_head dpm_list; /* The active device list */
104
105static inline struct device *to_device(struct list_head *entry)
106{
107 return container_of(entry, struct device, power.entry);
108}
109
110extern void device_pm_sleep_init(struct device *dev);
111extern void device_pm_add(struct device *);
112extern void device_pm_remove(struct device *);
113extern void device_pm_move_before(struct device *, struct device *);
114extern void device_pm_move_after(struct device *, struct device *);
115extern void device_pm_move_last(struct device *);
116extern void device_pm_check_callbacks(struct device *dev);
117
118static inline bool device_pm_initialized(struct device *dev)
119{
120 return dev->power.in_dpm_list;
121}
122
123/* drivers/base/power/wakeup_stats.c */
124extern int wakeup_source_sysfs_add(struct device *parent,
125 struct wakeup_source *ws);
126extern void wakeup_source_sysfs_remove(struct wakeup_source *ws);
127
128extern int pm_wakeup_source_sysfs_add(struct device *parent);
129
130#else /* !CONFIG_PM_SLEEP */
131
132static inline void device_pm_sleep_init(struct device *dev) {}
133
134static inline void device_pm_add(struct device *dev) {}
135
136static inline void device_pm_remove(struct device *dev)
137{
138 pm_runtime_remove(dev);
139}
140
141static inline void device_pm_move_before(struct device *deva,
142 struct device *devb) {}
143static inline void device_pm_move_after(struct device *deva,
144 struct device *devb) {}
145static inline void device_pm_move_last(struct device *dev) {}
146
147static inline void device_pm_check_callbacks(struct device *dev) {}
148
149static inline bool device_pm_initialized(struct device *dev)
150{
151 return device_is_registered(dev);
152}
153
154static inline int pm_wakeup_source_sysfs_add(struct device *parent)
155{
156 return 0;
157}
158
159#endif /* !CONFIG_PM_SLEEP */
160
161static inline void device_pm_init(struct device *dev)
162{
163 device_pm_init_common(dev);
164 device_pm_sleep_init(dev);
165 pm_runtime_init(dev);
166}