armv7_a9_pmu_init 2014 arch/arm/kernel/perf_event_v7.c {.compatible = "arm,cortex-a9-pmu", .data = armv7_a9_pmu_init}, armv7_a9_pmu_init 2026 arch/arm/kernel/perf_event_v7.c ARM_PMU_PROBE(ARM_CPU_PART_CORTEX_A9, armv7_a9_pmu_init),