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