1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM ipi
#if !defined(_TRACE_IPI_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_IPI_H
#include <linux/tracepoint.h>
/**
* ipi_raise - called when a smp cross call is made
*
* @mask: mask of recipient CPUs for the IPI
* @reason: string identifying the IPI purpose
*
* It is necessary for @reason to be a static string declared with
* __tracepoint_string.
*/
TRACE_EVENT(ipi_raise,
TP_PROTO(const struct cpumask *mask, const char *reason),
TP_ARGS(mask, reason),
TP_STRUCT__entry(
__bitmask(target_cpus, nr_cpumask_bits)
__field(const char *, reason)
),
TP_fast_assign(
__assign_bitmask(target_cpus, cpumask_bits(mask), nr_cpumask_bits);
__entry->reason = reason;
),
TP_printk("target_mask=%s (%s)", __get_bitmask(target_cpus), __entry->reason)
);
TRACE_EVENT(ipi_send_cpu,
TP_PROTO(const unsigned int cpu, unsigned long callsite, void *callback),
TP_ARGS(cpu, callsite, callback),
TP_STRUCT__entry(
__field(unsigned int, cpu)
__field(void *, callsite)
__field(void *, callback)
),
TP_fast_assign(
__entry->cpu = cpu;
__entry->callsite = (void *)callsite;
__entry->callback = callback;
),
TP_printk("cpu=%u callsite=%pS callback=%pS",
__entry->cpu, __entry->callsite, __entry->callback)
);
TRACE_EVENT(ipi_send_cpumask,
TP_PROTO(const struct cpumask *cpumask, unsigned long callsite, void *callback),
TP_ARGS(cpumask, callsite, callback),
TP_STRUCT__entry(
__cpumask(cpumask)
__field(void *, callsite)
__field(void *, callback)
),
TP_fast_assign(
__assign_cpumask(cpumask, cpumask_bits(cpumask));
__entry->callsite = (void *)callsite;
__entry->callback = callback;
),
TP_printk("cpumask=%s callsite=%pS callback=%pS",
__get_cpumask(cpumask), __entry->callsite, __entry->callback)
);
DECLARE_EVENT_CLASS(ipi_handler,
TP_PROTO(const char *reason),
TP_ARGS(reason),
TP_STRUCT__entry(
__field(const char *, reason)
),
TP_fast_assign(
__entry->reason = reason;
),
TP_printk("(%s)", __entry->reason)
);
/**
* ipi_entry - called immediately before the IPI handler
*
* @reason: string identifying the IPI purpose
*
* It is necessary for @reason to be a static string declared with
* __tracepoint_string, ideally the same as used with trace_ipi_raise
* for that IPI.
*/
DEFINE_EVENT(ipi_handler, ipi_entry,
TP_PROTO(const char *reason),
TP_ARGS(reason)
);
/**
* ipi_exit - called immediately after the IPI handler returns
*
* @reason: string identifying the IPI purpose
*
* It is necessary for @reason to be a static string declared with
* __tracepoint_string, ideally the same as used with trace_ipi_raise for
* that IPI.
*/
DEFINE_EVENT(ipi_handler, ipi_exit,
TP_PROTO(const char *reason),
TP_ARGS(reason)
);
#endif /* _TRACE_IPI_H */
/* This part must be outside protection */
#include <trace/define_trace.h>
|