diff --git a/include/trace/events/ipi.h b/include/trace/events/ipi.h new file mode 100644 index 000000000000..834a7362a610 --- /dev/null +++ b/include/trace/events/ipi.h @@ -0,0 +1,89 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM ipi + +#if !defined(_TRACE_IPI_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_IPI_H + +#include + +/** + * 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) +); + +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