xref: /linux/include/trace/events/rpm.h (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0)
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 
12 struct device;
13 
14 /*
15  * The rpm_internal events are used for tracing some important
16  * runtime pm internal functions.
17  */
18 DECLARE_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);
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 );
59 DEFINE_EVENT(rpm_internal, rpm_suspend,
60 
61 	TP_PROTO(struct device *dev, int flags),
62 
63 	TP_ARGS(dev, flags)
64 );
65 DEFINE_EVENT(rpm_internal, rpm_resume,
66 
67 	TP_PROTO(struct device *dev, int flags),
68 
69 	TP_ARGS(dev, flags)
70 );
71 DEFINE_EVENT(rpm_internal, rpm_idle,
72 
73 	TP_PROTO(struct device *dev, int flags),
74 
75 	TP_ARGS(dev, flags)
76 );
77 DEFINE_EVENT(rpm_internal, rpm_usage,
78 
79 	TP_PROTO(struct device *dev, int flags),
80 
81 	TP_ARGS(dev, flags)
82 );
83 
84 TRACE_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);
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 
117 RPM_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 
128 TRACE_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);
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