From 56eb0598c7a30c76009a082d3213486d6a013df0 Mon Sep 17 00:00:00 2001 From: Valentin Schneider Date: Tue, 7 Mar 2023 14:35:52 +0000 Subject: trace: Add trace_ipi_send_cpumask() trace_ipi_raise() is unsuitable for generically tracing IPI sources due to its "reason" argument being an uninformative string (on arm64 all you get is "Function call interrupts" for SMP calls). Add a variant of it that exports a target cpumask, a callsite and a callback. Signed-off-by: Valentin Schneider Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Steven Rostedt (Google) Link: https://lore.kernel.org/r/20230307143558.294354-2-vschneid@redhat.com --- include/trace/events/ipi.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'include/trace') diff --git a/include/trace/events/ipi.h b/include/trace/events/ipi.h index 0be71dad6ec0..b1125dc27682 100644 --- a/include/trace/events/ipi.h +++ b/include/trace/events/ipi.h @@ -35,6 +35,28 @@ TRACE_EVENT(ipi_raise, TP_printk("target_mask=%s (%s)", __get_bitmask(target_cpus), __entry->reason) ); +TRACE_EVENT(ipi_send_cpumask, + + TP_PROTO(const struct cpumask *cpumask, unsigned long callsite, void *callback), + + TP_ARGS(cpumask, callsite, callback), + + TP_STRUCT__entry( + __cpumask(cpumask) + __field(void *, callsite) + __field(void *, callback) + ), + + TP_fast_assign( + __assign_cpumask(cpumask, cpumask_bits(cpumask)); + __entry->callsite = (void *)callsite; + __entry->callback = callback; + ), + + TP_printk("cpumask=%s callsite=%pS callback=%pS", + __get_cpumask(cpumask), __entry->callsite, __entry->callback) +); + DECLARE_EVENT_CLASS(ipi_handler, TP_PROTO(const char *reason), -- cgit v1.2.3