perf_nmi_tstamp    14 arch/x86/events/amd/core.c static DEFINE_PER_CPU(unsigned long, perf_nmi_tstamp);
perf_nmi_tstamp   685 arch/x86/events/amd/core.c 		this_cpu_write(perf_nmi_tstamp,
perf_nmi_tstamp   691 arch/x86/events/amd/core.c 	if (time_after(jiffies, this_cpu_read(perf_nmi_tstamp)))