ARM_CPU_PART_CORTEX_A8 2025 arch/arm/kernel/perf_event_v7.c ARM_PMU_PROBE(ARM_CPU_PART_CORTEX_A8, armv7_a8_pmu_init), ARM_CPU_PART_CORTEX_A8 49 arch/arm/mm/proc-v7-bugs.c case ARM_CPU_PART_CORTEX_A8: