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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: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Bibo Mao 2024-04-25 22:17:52 +08:00 committed by Huacai Chen
parent d3119bc985
commit f3334ebb8a
1 changed files with 1 additions and 1 deletions
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arch/loongarch/kernel/perf_event.c
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@ -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);