src/sys/arch/x86/x86/identcpu_subr.c - diff

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version 1.4, 2020/05/12 06:32:05

version 1.5, 2020/06/09 05:06:27

Line 71 cpu_tsc_freq_cpuid(struct cpu_info *ci)

x86_cpuid(0x15, descs);

denominator = descs[0];

numerator = descs[1];

if ((denominator == 0) || numerator == 0) {

if ((denominator != 0) && numerator != 0) {

aprint_debug_dev(ci->ci_dev,

"TSC/core crystal clock ratio is not enumerated\n");

} else {

khz = 0;

if (descs[2] != 0)

khz = descs[2] / 1000;