36 unsigned int __read_mostly tsc_khz;  variable
37 EXPORT_SYMBOL(tsc_khz);
191 	__set_cyc2ns_scale(tsc_khz, smp_processor_id(), rdtsc());  in cyc2ns_init_boot_cpu()
320 	u64 thresh = tsc_khz ? tsc_khz >> 5 : TSC_DEFAULT_THRESHOLD;  in tsc_read_refs()
906 	tsc_khz = x86_platform.calibrate_tsc();  in recalibrate_cpu_khz()
907 	if (tsc_khz == 0)  in recalibrate_cpu_khz()
908 		tsc_khz = cpu_khz;  in recalibrate_cpu_khz()
909 	else if (abs(cpu_khz - tsc_khz) * 10 > tsc_khz)  in recalibrate_cpu_khz()
910 		cpu_khz = tsc_khz;  in recalibrate_cpu_khz()
996 		tsc_khz_ref = tsc_khz;  in time_cpufreq_notifier()
1004 		tsc_khz = cpufreq_scale(tsc_khz_ref, ref_freq, freq->new);  in time_cpufreq_notifier()
1008 		set_cyc2ns_scale(tsc_khz, freq->policy->cpu, rdtsc());  in time_cpufreq_notifier()
1303 	res = art_ns * tsc_khz;  in convert_art_ns_to_tsc()
1304 	tmp = rem * tsc_khz;  in convert_art_ns_to_tsc()
1378 	if (abs(tsc_khz - freq) > tsc_khz/100)  in tsc_refine_calibration_work()
1381 	tsc_khz = freq;  in tsc_refine_calibration_work()
1383 		(unsigned long)tsc_khz / 1000,  in tsc_refine_calibration_work()
1384 		(unsigned long)tsc_khz % 1000);  in tsc_refine_calibration_work()
1391 		set_cyc2ns_scale(tsc_khz, cpu, tsc_stop);  in tsc_refine_calibration_work()
1399 	clocksource_register_khz(&clocksource_tsc, tsc_khz);  in tsc_refine_calibration_work()
1407 	if (!boot_cpu_has(X86_FEATURE_TSC) || !tsc_khz)  in init_tsc_clocksource()
1423 		clocksource_register_khz(&clocksource_tsc, tsc_khz);  in init_tsc_clocksource()
1441 	WARN_ON(cpu_khz || tsc_khz);  in determine_cpu_tsc_frequencies()
1446 			tsc_khz = tsc_early_khz;  in determine_cpu_tsc_frequencies()
1448 			tsc_khz = x86_platform.calibrate_tsc();  in determine_cpu_tsc_frequencies()
1460 	if (tsc_khz == 0)  in determine_cpu_tsc_frequencies()
1461 		tsc_khz = cpu_khz;  in determine_cpu_tsc_frequencies()
1462 	else if (abs(cpu_khz - tsc_khz) * 10 > tsc_khz)  in determine_cpu_tsc_frequencies()
1463 		cpu_khz = tsc_khz;  in determine_cpu_tsc_frequencies()
1465 	if (tsc_khz == 0)  in determine_cpu_tsc_frequencies()
1472 	if (cpu_khz != tsc_khz) {  in determine_cpu_tsc_frequencies()
1474 			(unsigned long)tsc_khz / KHZ,  in determine_cpu_tsc_frequencies()
1475 			(unsigned long)tsc_khz % KHZ);  in determine_cpu_tsc_frequencies()
1482 	u64 lpj = (u64)tsc_khz * KHZ;  in get_loops_per_jiffy()
1525 	if (!tsc_khz) {  in tsc_init()
1552 	clocksource_register_khz(&clocksource_tsc_early, tsc_khz);  in tsc_init()