Commit f3334ebb authored by Bibo Mao's avatar Bibo Mao Committed by Huacai Chen
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LoongArch: Lately init pmu after smp is online 



There is an smp function call named reset_counters() to init PMU
registers of every CPU in PMU initialization state. It requires that all
CPUs are online. However there is an early_initcall() wrapper for the
PMU init funciton init_hw_perf_events(), so that pmu init funciton is
called in do_pre_smp_initcalls() which before function smp_init().
Function reset_counters() cannot work on other CPUs since they haven't
boot up still.

Here replace the wrapper early_initcall() with pure_initcall(), so that
the PMU init function is called after every cpu is online.

Signed-off-by: default avatarBibo Mao <maobibo@loongson.cn>
Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
parent d3119bc9

arch/loongarch/kernel/perf_event.c

+1 −1
Original line number Diff line number Diff line
@@ -884,4 +884,4 @@ static int __init init_hw_perf_events(void) 


	return 0;

}

early_initcall(init_hw_perf_events);
 
pure_initcall(init_hw_perf_events);