1/* SPDX-License-Identifier: GPL-2.0 */
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM ipi
4
5#if !defined(_TRACE_IPI_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_IPI_H
7
8#include <linux/tracepoint.h>
9
10TRACE_EVENT(ipi_send_cpu,
11
12 TP_PROTO(const unsigned int cpu, unsigned long callsite, void *callback),
13
14 TP_ARGS(cpu, callsite, callback),
15
16 TP_STRUCT__entry(
17 __field(unsigned int, cpu)
18 __field(void *, callsite)
19 __field(void *, callback)
20 ),
21
22 TP_fast_assign(
23 __entry->cpu = cpu;
24 __entry->callsite = (void *)callsite;
25 __entry->callback = callback;
26 ),
27
28 TP_printk("cpu=%u callsite=%pS callback=%pS",
29 __entry->cpu, __entry->callsite, __entry->callback)
30);
31
32TRACE_EVENT(ipi_send_cpumask,
33
34 TP_PROTO(const struct cpumask *cpumask, unsigned long callsite, void *callback),
35
36 TP_ARGS(cpumask, callsite, callback),
37
38 TP_STRUCT__entry(
39 __cpumask(cpumask)
40 __field(void *, callsite)
41 __field(void *, callback)
42 ),
43
44 TP_fast_assign(
45 __assign_cpumask(cpumask, cpumask_bits(cpumask));
46 __entry->callsite = (void *)callsite;
47 __entry->callback = callback;
48 ),
49
50 TP_printk("cpumask=%s callsite=%pS callback=%pS",
51 __get_cpumask(cpumask), __entry->callsite, __entry->callback)
52);
53
54#ifdef CONFIG_HAVE_EXTRA_IPI_TRACEPOINTS
55/**
56 * ipi_raise - called when a smp cross call is made
57 *
58 * @mask: mask of recipient CPUs for the IPI
59 * @reason: string identifying the IPI purpose
60 *
61 * It is necessary for @reason to be a static string declared with
62 * __tracepoint_string.
63 */
64TRACE_EVENT(ipi_raise,
65
66 TP_PROTO(const struct cpumask *mask, const char *reason),
67
68 TP_ARGS(mask, reason),
69
70 TP_STRUCT__entry(
71 __bitmask(target_cpus, nr_cpumask_bits)
72 __field(const char *, reason)
73 ),
74
75 TP_fast_assign(
76 __assign_bitmask(target_cpus, cpumask_bits(mask), nr_cpumask_bits);
77 __entry->reason = reason;
78 ),
79
80 TP_printk("target_mask=%s (%s)", __get_bitmask(target_cpus), __entry->reason)
81);
82
83DECLARE_EVENT_CLASS(ipi_handler,
84
85 TP_PROTO(const char *reason),
86
87 TP_ARGS(reason),
88
89 TP_STRUCT__entry(
90 __field(const char *, reason)
91 ),
92
93 TP_fast_assign(
94 __entry->reason = reason;
95 ),
96
97 TP_printk("(%s)", __entry->reason)
98);
99
100/**
101 * ipi_entry - called immediately before the IPI handler
102 *
103 * @reason: string identifying the IPI purpose
104 *
105 * It is necessary for @reason to be a static string declared with
106 * __tracepoint_string, ideally the same as used with trace_ipi_raise
107 * for that IPI.
108 */
109DEFINE_EVENT(ipi_handler, ipi_entry,
110
111 TP_PROTO(const char *reason),
112
113 TP_ARGS(reason)
114);
115
116/**
117 * ipi_exit - called immediately after the IPI handler returns
118 *
119 * @reason: string identifying the IPI purpose
120 *
121 * It is necessary for @reason to be a static string declared with
122 * __tracepoint_string, ideally the same as used with trace_ipi_raise for
123 * that IPI.
124 */
125DEFINE_EVENT(ipi_handler, ipi_exit,
126
127 TP_PROTO(const char *reason),
128
129 TP_ARGS(reason)
130);
131#endif /* CONFIG_HAVE_EXTRA_IPI_TRACEPOINTS */
132
133#endif /* _TRACE_IPI_H */
134
135/* This part must be outside protection */
136#include <trace/define_trace.h>
137

source code of linux/include/trace/events/ipi.h