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/xen/xen/arch/x86/
A Dapic.c1214 unsigned int bus_cycle; /* length of one bus cycle in pico-seconds */ in calibrate_APIC_clock() local
1263 bus_cycle = 1000000000000UL / bus_freq; /* in pico seconds */ in calibrate_APIC_clock()
1264 bus_cycle += (1000000000000UL % bus_freq) * 2 > bus_freq; in calibrate_APIC_clock()
1265 bus_scale = (1000*262144)/bus_cycle; in calibrate_APIC_clock()
1266 bus_scale += ((1000 * 262144) % bus_cycle) * 2 > bus_cycle; in calibrate_APIC_clock()

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