Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\tsc.c Create Date:2022-07-28 07:46:23
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:ative_calibrate_cpu_early - can calibrate the cpu early in boot

Proto:unsigned long native_calibrate_cpu_early(void)

Type:unsigned long

Parameter:Nothing

863  fast_calibrate = cpu_khz_from_cpuid()
865  If Not fast_calibrate Then fast_calibrate = cpu_khz_from_msr()
867  If Not fast_calibrate Then
868  local_irq_save(flags)
869  fast_calibrate = quick_pit_calibrate()
870  local_irq_restore(flags)
872  Return fast_calibrate
Caller
NameDescribe
native_calibrate_cpuative_calibrate_cpu - calibrate the cpu