17 const PIT_TICK_RATE: u64 = 1193182;
22 static mut TSC_KHZ: u64 = 0;
23 static mut CPU_KHZ: u64 = 0;
26     const DEFAULT_THRESHOLD: u64 = 0x20000;
106     fn calibrate_cpu_by_pit_hpet_ptimer() -> Result<u64, SystemError> {  in calibrate_cpu_by_pit_hpet_ptimer()
113         let mut tsc_pit_min = u64::MAX;  in calibrate_cpu_by_pit_hpet_ptimer()
114         let mut tsc_ref_min = u64::MAX;  in calibrate_cpu_by_pit_hpet_ptimer()
137             let tsc_pit_khz = Self::pit_calibrate_tsc(latch, ms, loopmin).unwrap_or(u64::MAX);  in calibrate_cpu_by_pit_hpet_ptimer()
154             if tsc1 == u64::MAX || tsc2 == u64::MAX {  in calibrate_cpu_by_pit_hpet_ptimer()
183             if i == 1 && tsc_pit_min == u64::MAX {  in calibrate_cpu_by_pit_hpet_ptimer()
190         if tsc_pit_min == u64::MAX {  in calibrate_cpu_by_pit_hpet_ptimer()
199             if tsc_ref_min == u64::MAX {  in calibrate_cpu_by_pit_hpet_ptimer()
218         if tsc_ref_min == u64::MAX {  in calibrate_cpu_by_pit_hpet_ptimer()
241     fn pit_calibrate_tsc(latch: u64, ms: u64, loopmin: u64) -> Option<u64> {  in pit_calibrate_tsc()  argument
266         let mut tsc = CurrentTimeArch::get_cycles() as u64;  in pit_calibrate_tsc()
271         let mut tscmin = u64::MAX;  in pit_calibrate_tsc()
273             t2 = CurrentTimeArch::get_cycles() as u64;  in pit_calibrate_tsc()
311     fn read_refs(hpet_enabled: bool) -> (u64, u64) {  in read_refs()  argument
320             let t1 = CurrentTimeArch::get_cycles() as u64;  in read_refs()
326             let t2 = CurrentTimeArch::get_cycles() as u64;  in read_refs()
333         return (u64::MAX, ref_ret);  in read_refs()
339     fn calc_hpet_ref(mut deltatsc: u64, ref1: u64, mut ref2: u64) -> u64 {  in calc_hpet_ref()  argument
355     fn calc_pmtimer_ref(mut deltatsc: u64, ref1: u64, mut ref2: u64) -> u64 {  in calc_pmtimer_ref()  argument
357             return u64::MAX;  in calc_pmtimer_ref()
375     pub fn tsc_khz() -> u64 {  in tsc_khz()
379     pub fn cpu_khz() -> u64 {  in cpu_khz()
383     fn set_cpu_khz(khz: u64) {  in set_cpu_khz()  argument
389     fn set_tsc_khz(khz: u64) {  in set_tsc_khz()  argument