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/netgear-R7000-V1.0.7.12_1.2.5/components/opensource/linux/linux-2.6.36/arch/x86/kernel/
H A Dhpet.c217 static unsigned long hpet_period; variable
292 * hpet_period is in units of femtoseconds (per cycle), so
293 * mult/2^shift = cyc/ns = 10^6/hpet_period
294 * mult = (10^6 * 2^shift)/hpet_period
295 * mult = (FSEC_PER_NSEC << hpet_clockevent.shift)/hpet_period
298 hpet_period, hpet_clockevent.shift);
563 do_div(hpet_freq, hpet_period);
804 * mult/2^shift = ns/cyc and hpet_period is in units of fsec/cyc
805 * so we first need to convert hpet_period to ns/cyc units:
806 * mult/2^shift = ns/cyc = hpet_period/1
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