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head/sys/dev/hyperv/vmbus/amd64/hyperv_machdep.c
| Show First 20 Lines • Show All 182 Lines • ▼ Show 20 Lines | hyperv_tsc_tcinit(void *dummy __unused) | ||||
| if ((hyperv_features & | if ((hyperv_features & | ||||
| (CPUID_HV_MSR_TIME_REFCNT | CPUID_HV_MSR_REFERENCE_TSC)) != | (CPUID_HV_MSR_TIME_REFCNT | CPUID_HV_MSR_REFERENCE_TSC)) != | ||||
| (CPUID_HV_MSR_TIME_REFCNT | CPUID_HV_MSR_REFERENCE_TSC) || | (CPUID_HV_MSR_TIME_REFCNT | CPUID_HV_MSR_REFERENCE_TSC) || | ||||
| (cpu_feature & CPUID_SSE2) == 0) /* SSE2 for mfence/lfence */ | (cpu_feature & CPUID_SSE2) == 0) /* SSE2 for mfence/lfence */ | ||||
| return; | return; | ||||
| switch (cpu_vendor_id) { | switch (cpu_vendor_id) { | ||||
| case CPU_VENDOR_AMD: | case CPU_VENDOR_AMD: | ||||
| case CPU_VENDOR_HYGON: | |||||
| hyperv_tsc_timecounter.tc_get_timecount = | hyperv_tsc_timecounter.tc_get_timecount = | ||||
| hyperv_tsc_timecount_mfence; | hyperv_tsc_timecount_mfence; | ||||
| tc64 = hyperv_tc64_tsc_mfence; | tc64 = hyperv_tc64_tsc_mfence; | ||||
| break; | break; | ||||
| case CPU_VENDOR_INTEL: | case CPU_VENDOR_INTEL: | ||||
| hyperv_tsc_timecounter.tc_get_timecount = | hyperv_tsc_timecounter.tc_get_timecount = | ||||
| hyperv_tsc_timecount_lfence; | hyperv_tsc_timecount_lfence; | ||||
| Show All 35 Lines | |||||