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