diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-20 00:10:27 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-20 00:10:27 -0300 |
commit | d0b2f91bede3bd5e3d24dd6803e56eee959c1797 (patch) | |
tree | 7fee4ab0509879c373c4f2cbd5b8a5be5b4041ee /arch/metag/kernel/perf/perf_event.c | |
parent | e914f8eb445e8f74b00303c19c2ffceaedd16a05 (diff) |
Linux-libre 4.8.2-gnupck-4.8.2-gnu
Diffstat (limited to 'arch/metag/kernel/perf/perf_event.c')
-rw-r--r-- | arch/metag/kernel/perf/perf_event.c | 26 |
1 files changed, 7 insertions, 19 deletions
diff --git a/arch/metag/kernel/perf/perf_event.c b/arch/metag/kernel/perf/perf_event.c index 33a365f92..052cba237 100644 --- a/arch/metag/kernel/perf/perf_event.c +++ b/arch/metag/kernel/perf/perf_event.c @@ -806,25 +806,16 @@ static struct metag_pmu _metag_pmu = { }; /* PMU CPU hotplug notifier */ -static int metag_pmu_cpu_notify(struct notifier_block *b, unsigned long action, - void *hcpu) +static int metag_pmu_starting_cpu(unsigned int cpu) { - unsigned int cpu = (unsigned int)hcpu; struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu); - if ((action & ~CPU_TASKS_FROZEN) != CPU_STARTING) - return NOTIFY_DONE; - memset(cpuc, 0, sizeof(struct cpu_hw_events)); raw_spin_lock_init(&cpuc->pmu_lock); - return NOTIFY_OK; + return 0; } -static struct notifier_block metag_pmu_notifier = { - .notifier_call = metag_pmu_cpu_notify, -}; - /* PMU Initialisation */ static int __init init_hw_perf_events(void) { @@ -876,16 +867,13 @@ static int __init init_hw_perf_events(void) metag_out32(0, PERF_COUNT(0)); metag_out32(0, PERF_COUNT(1)); - for_each_possible_cpu(cpu) { - struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu); + cpuhp_setup_state(CPUHP_AP_PERF_METAG_STARTING, + "AP_PERF_METAG_STARTING", metag_pmu_starting_cpu, + NULL); - memset(cpuc, 0, sizeof(struct cpu_hw_events)); - raw_spin_lock_init(&cpuc->pmu_lock); - } - - register_cpu_notifier(&metag_pmu_notifier); ret = perf_pmu_register(&pmu, metag_pmu->name, PERF_TYPE_RAW); -out: + if (ret) + cpuhp_remove_state_nocalls(CPUHP_AP_PERF_METAG_STARTING); return ret; } early_initcall(init_hw_perf_events); |