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Searched refs:tsc_start (Results 1 – 2 of 2) sorted by relevance

/Linux-v5.4/arch/x86/kernel/
Dtsc.c1292 static u64 tsc_start = ULLONG_MAX, ref_start; in tsc_refine_calibration_work() local
1307 if (tsc_start == ULLONG_MAX) { in tsc_refine_calibration_work()
1314 tsc_start = tsc_read_refs(&ref_start, hpet); in tsc_refine_calibration_work()
1329 delta = tsc_stop - tsc_start; in tsc_refine_calibration_work()
/Linux-v5.4/arch/x86/kernel/apic/
Dapic.c858 u64 tsc_perj = 0, tsc_start = 0; in calibrate_APIC_clock() local
907 tsc_start = rdtsc(); in calibrate_APIC_clock()
922 if ((tsc_now - tsc_start) >= tsc_perj) { in calibrate_APIC_clock()
923 tsc_start += tsc_perj; in calibrate_APIC_clock()