tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#include <linux/pm_qos.h>
2
3static inline void device_pm_init_common(struct device *dev)
4{
5 if (!dev->power.early_init) {
6 spin_lock_init(&dev->power.lock);
7 dev->power.qos = NULL;
8 dev->power.early_init = true;
9 }
10}
11
12#ifdef CONFIG_PM
13
14static inline void pm_runtime_early_init(struct device *dev)
15{
16 dev->power.disable_depth = 1;
17 device_pm_init_common(dev);
18}
19
20extern void pm_runtime_init(struct device *dev);
21extern void pm_runtime_reinit(struct device *dev);
22extern void pm_runtime_remove(struct device *dev);
23
24#define WAKE_IRQ_DEDICATED_ALLOCATED BIT(0)
25#define WAKE_IRQ_DEDICATED_MANAGED BIT(1)
26#define WAKE_IRQ_DEDICATED_MASK (WAKE_IRQ_DEDICATED_ALLOCATED | \
27 WAKE_IRQ_DEDICATED_MANAGED)
28
29struct wake_irq {
30 struct device *dev;
31 unsigned int status;
32 int irq;
33};
34
35extern void dev_pm_arm_wake_irq(struct wake_irq *wirq);
36extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq);
37extern void dev_pm_enable_wake_irq_check(struct device *dev,
38 bool can_change_status);
39extern void dev_pm_disable_wake_irq_check(struct device *dev);
40
41#ifdef CONFIG_PM_SLEEP
42
43extern int device_wakeup_attach_irq(struct device *dev,
44 struct wake_irq *wakeirq);
45extern void device_wakeup_detach_irq(struct device *dev);
46extern void device_wakeup_arm_wake_irqs(void);
47extern void device_wakeup_disarm_wake_irqs(void);
48
49#else
50
51static inline int
52device_wakeup_attach_irq(struct device *dev,
53 struct wake_irq *wakeirq)
54{
55 return 0;
56}
57
58static inline void device_wakeup_detach_irq(struct device *dev)
59{
60}
61
62static inline void device_wakeup_arm_wake_irqs(void)
63{
64}
65
66static inline void device_wakeup_disarm_wake_irqs(void)
67{
68}
69
70#endif /* CONFIG_PM_SLEEP */
71
72/*
73 * sysfs.c
74 */
75
76extern int dpm_sysfs_add(struct device *dev);
77extern void dpm_sysfs_remove(struct device *dev);
78extern void rpm_sysfs_remove(struct device *dev);
79extern int wakeup_sysfs_add(struct device *dev);
80extern void wakeup_sysfs_remove(struct device *dev);
81extern int pm_qos_sysfs_add_resume_latency(struct device *dev);
82extern void pm_qos_sysfs_remove_resume_latency(struct device *dev);
83extern int pm_qos_sysfs_add_flags(struct device *dev);
84extern void pm_qos_sysfs_remove_flags(struct device *dev);
85extern int pm_qos_sysfs_add_latency_tolerance(struct device *dev);
86extern void pm_qos_sysfs_remove_latency_tolerance(struct device *dev);
87
88#else /* CONFIG_PM */
89
90static inline void pm_runtime_early_init(struct device *dev)
91{
92 device_pm_init_common(dev);
93}
94
95static inline void pm_runtime_init(struct device *dev) {}
96static inline void pm_runtime_reinit(struct device *dev) {}
97static inline void pm_runtime_remove(struct device *dev) {}
98
99static inline int dpm_sysfs_add(struct device *dev) { return 0; }
100static inline void dpm_sysfs_remove(struct device *dev) {}
101static inline void rpm_sysfs_remove(struct device *dev) {}
102static inline int wakeup_sysfs_add(struct device *dev) { return 0; }
103static inline void wakeup_sysfs_remove(struct device *dev) {}
104static inline int pm_qos_sysfs_add(struct device *dev) { return 0; }
105static inline void pm_qos_sysfs_remove(struct device *dev) {}
106
107static inline void dev_pm_arm_wake_irq(struct wake_irq *wirq)
108{
109}
110
111static inline void dev_pm_disarm_wake_irq(struct wake_irq *wirq)
112{
113}
114
115static inline void dev_pm_enable_wake_irq_check(struct device *dev,
116 bool can_change_status)
117{
118}
119
120static inline void dev_pm_disable_wake_irq_check(struct device *dev)
121{
122}
123
124#endif
125
126#ifdef CONFIG_PM_SLEEP
127
128/* kernel/power/main.c */
129extern int pm_async_enabled;
130
131/* drivers/base/power/main.c */
132extern struct list_head dpm_list; /* The active device list */
133
134static inline struct device *to_device(struct list_head *entry)
135{
136 return container_of(entry, struct device, power.entry);
137}
138
139extern void device_pm_sleep_init(struct device *dev);
140extern void device_pm_add(struct device *);
141extern void device_pm_remove(struct device *);
142extern void device_pm_move_before(struct device *, struct device *);
143extern void device_pm_move_after(struct device *, struct device *);
144extern void device_pm_move_last(struct device *);
145extern void device_pm_check_callbacks(struct device *dev);
146
147static inline bool device_pm_initialized(struct device *dev)
148{
149 return dev->power.in_dpm_list;
150}
151
152#else /* !CONFIG_PM_SLEEP */
153
154static inline void device_pm_sleep_init(struct device *dev) {}
155
156static inline void device_pm_add(struct device *dev) {}
157
158static inline void device_pm_remove(struct device *dev)
159{
160 pm_runtime_remove(dev);
161}
162
163static inline void device_pm_move_before(struct device *deva,
164 struct device *devb) {}
165static inline void device_pm_move_after(struct device *deva,
166 struct device *devb) {}
167static inline void device_pm_move_last(struct device *dev) {}
168
169static inline void device_pm_check_callbacks(struct device *dev) {}
170
171static inline bool device_pm_initialized(struct device *dev)
172{
173 return device_is_registered(dev);
174}
175
176#endif /* !CONFIG_PM_SLEEP */
177
178static inline void device_pm_init(struct device *dev)
179{
180 device_pm_init_common(dev);
181 device_pm_sleep_init(dev);
182 pm_runtime_init(dev);
183}