Commit e64397f8 authored Jun 12, 2025 by Steven Rostedt Committed by Steven Rostedt (Google) Jul 21, 2025

PM: tracing: Hide psci_domain_idle events under ARM_PSCI_CPUIDLE

The events psci_domain_idle_enter and psci_domain_idle_exit events are
only called when CONFIG_ARM_PSCI_CPUIDLE is defined. As each event can
take up to 5K (less for DEFINE_EVENT()) regardless if they are used or
not, it's best not to define them when they are not used. Add #ifdef
around these events when they are not used.

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/20250612145408.074769245@goodmis.org

Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

parent 647fe16b

include/trace/events/power.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -62,6 +62,7 @@ TRACE_EVENT(cpu_idle_miss,
		(unsigned long)__entry->state, (__entry->below)?"below":"above")
		);

		#ifdef CONFIG_ARM_PSCI_CPUIDLE
		DECLARE_EVENT_CLASS(psci_domain_idle,

		TP_PROTO(unsigned int cpu_id, unsigned int state, bool s2idle),
		@@ -98,6 +99,7 @@ DEFINE_EVENT(psci_domain_idle, psci_domain_idle_exit,

		TP_ARGS(cpu_id, state, s2idle)
		);
		#endif

		TRACE_EVENT(pstate_sample,