cpu_has_perf_cntr_intr_bit 501 arch/mips/include/asm/cpu-features.h #ifndef cpu_has_perf_cntr_intr_bit cpu_has_perf_cntr_intr_bit 1390 arch/mips/kernel/perf_event_mipsxx.c if (cpu_has_perf_cntr_intr_bit && !(read_c0_cause() & CAUSEF_PCI))