1/* SPDX-License-Identifier: GPL-2.0 */
2
3#undef TRACE_SYSTEM
4#define TRACE_SYSTEM rpm
5
6#if !defined(_TRACE_RUNTIME_POWER_H) || defined(TRACE_HEADER_MULTI_READ)
7#define _TRACE_RUNTIME_POWER_H
8
9#include <linux/ktime.h>
10#include <linux/tracepoint.h>
11
12struct device;
13
14/*
15 * The rpm_internal events are used for tracing some important
16 * runtime pm internal functions.
17 */
18DECLARE_EVENT_CLASS(rpm_internal,
19
20	TP_PROTO(struct device *dev, int flags),
21
22	TP_ARGS(dev, flags),
23
24	TP_STRUCT__entry(
25		__string(       name,		dev_name(dev)	)
26		__field(        int,            flags           )
27		__field(        int ,   	usage_count	)
28		__field(        int ,   	disable_depth   )
29		__field(        int ,   	runtime_auto	)
30		__field(        int ,   	request_pending	)
31		__field(        int ,   	irq_safe	)
32		__field(        int ,   	child_count 	)
33	),
34
35	TP_fast_assign(
36		__assign_str(name, dev_name(dev));
37		__entry->flags = flags;
38		__entry->usage_count = atomic_read(
39			&dev->power.usage_count);
40		__entry->disable_depth = dev->power.disable_depth;
41		__entry->runtime_auto = dev->power.runtime_auto;
42		__entry->request_pending = dev->power.request_pending;
43		__entry->irq_safe = dev->power.irq_safe;
44		__entry->child_count = atomic_read(
45			&dev->power.child_count);
46	),
47
48	TP_printk("%s flags-%x cnt-%-2d dep-%-2d auto-%-1d p-%-1d"
49			" irq-%-1d child-%d",
50			__get_str(name), __entry->flags,
51			__entry->usage_count,
52			__entry->disable_depth,
53			__entry->runtime_auto,
54			__entry->request_pending,
55			__entry->irq_safe,
56			__entry->child_count
57		 )
58);
59DEFINE_EVENT(rpm_internal, rpm_suspend,
60
61	TP_PROTO(struct device *dev, int flags),
62
63	TP_ARGS(dev, flags)
64);
65DEFINE_EVENT(rpm_internal, rpm_resume,
66
67	TP_PROTO(struct device *dev, int flags),
68
69	TP_ARGS(dev, flags)
70);
71DEFINE_EVENT(rpm_internal, rpm_idle,
72
73	TP_PROTO(struct device *dev, int flags),
74
75	TP_ARGS(dev, flags)
76);
77DEFINE_EVENT(rpm_internal, rpm_usage,
78
79	TP_PROTO(struct device *dev, int flags),
80
81	TP_ARGS(dev, flags)
82);
83
84TRACE_EVENT(rpm_return_int,
85	TP_PROTO(struct device *dev, unsigned long ip, int ret),
86	TP_ARGS(dev, ip, ret),
87
88	TP_STRUCT__entry(
89		__string(       name,		dev_name(dev))
90		__field(	unsigned long,		ip	)
91		__field(	int,			ret	)
92	),
93
94	TP_fast_assign(
95		__assign_str(name, dev_name(dev));
96		__entry->ip = ip;
97		__entry->ret = ret;
98	),
99
100	TP_printk("%pS:%s ret=%d", (void *)__entry->ip, __get_str(name),
101		__entry->ret)
102);
103
104#define RPM_STATUS_STRINGS \
105	EM(RPM_INVALID, "RPM_INVALID") \
106	EM(RPM_ACTIVE, "RPM_ACTIVE") \
107	EM(RPM_RESUMING, "RPM_RESUMING") \
108	EM(RPM_SUSPENDED, "RPM_SUSPENDED") \
109	EMe(RPM_SUSPENDING, "RPM_SUSPENDING")
110
111/* Enums require being exported to userspace, for user tool parsing. */
112#undef EM
113#undef EMe
114#define EM(a, b)	TRACE_DEFINE_ENUM(a);
115#define EMe(a, b)	TRACE_DEFINE_ENUM(a);
116
117RPM_STATUS_STRINGS
118
119/*
120 * Now redefine the EM() and EMe() macros to map the enums to the strings that
121 * will be printed in the output.
122 */
123#undef EM
124#undef EMe
125#define EM(a, b)	{ a, b },
126#define EMe(a, b)	{ a, b }
127
128TRACE_EVENT(rpm_status,
129	TP_PROTO(struct device *dev, enum rpm_status status),
130	TP_ARGS(dev, status),
131
132	TP_STRUCT__entry(
133		__string(name,	dev_name(dev))
134		__field(int,	status)
135	),
136
137	TP_fast_assign(
138		__assign_str(name, dev_name(dev));
139		__entry->status = status;
140	),
141
142	TP_printk("%s status=%s", __get_str(name),
143		__print_symbolic(__entry->status, RPM_STATUS_STRINGS))
144);
145
146#endif /* _TRACE_RUNTIME_POWER_H */
147
148/* This part must be outside protection */
149#include <trace/define_trace.h>
150