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