On Mon, May 31, 2021 at 10:18:45PM +0200, Peter N. M. Hansteen wrote:
> All issues resolved with help from Bryan Steele, Jonathan Gray and
> Stefan Sperling.
> 
> dmesg, sendbug and pcidump output attached.
> 
> Thanks again for all your help!
> 
> All the best,
> Peter

> 
> OpenBSD 6.9-current (GENERIC.MP) #3: Mon May 31 21:28:27 CEST 2021
>     
> pe...@zaida.bsdly.net:/home/peter/localsrc/openbsd-src/sys/arch/amd64/compile/GENERIC.MP
> real mem = 16826920960 (16047MB)
> avail mem = 16300920832 (15545MB)
> random: good seed from bootblocks
> mpath0 at root
> scsibus0 at mpath0: 256 targets
> mainbus0 at root
> bios0 at mainbus0: SMBIOS rev. 3.3 @ 0x5a605000 (94 entries)
> bios0: vendor American Megatrends International, LLC. version "UX393EA.302" 
> date 12/15/2020
> bios0: ASUSTeK COMPUTER INC. ZenBook UX393EA_UX393EA
> acpi0 at bios0: ACPI 6.2
> acpi0: sleep states S0 S3 S4 S5
> acpi0: tables DSDT FACP MCFG SSDT FIDT ECDT MSDM SSDT SSDT SSDT SSDT HPET 
> APIC SSDT NHLT LPIT SSDT DBGP DBG2 SSDT DMAR SSDT SSDT BGRT TPM2 PTDT WSMT 
> FPDT
> acpi0: wakeup devices PEGP(S4) PEGP(S4) PEGP(S4) PEG0(S4) PEGP(S4) XHCI(S3) 
> XDCI(S4) HDAS(S4) CNVW(S4) TXHC(S3) TDM0(S3) TRP0(S3) PXSX(S4) TRP1(S3) 
> PXSX(S4) PXSX(S4) [...]
> acpitimer0 at acpi0: 3579545 Hz, 24 bits
> acpimcfg0 at acpi0
> acpimcfg0: addr 0xc0000000, bus 0-255
> acpiec0 at acpi0
> acpihpet0 at acpi0: 19200000 Hz
> acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
> cpu0 at mainbus0: apid 0 (boot processor)
> cpu0: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz, 63762.34 MHz, 06-8c-01
> cpu0: 
> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,AVX512F,AVX512DQ,RDSEED,ADX,SMAP,AVX512IFMA,CLFLUSHOPT,CLWB,PT,AVX512CD,SHA,AVX512BW,AVX512VL,AVX512VBMI,UMIP,PKU,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES
> cpu0: 256KB 64b/line disabled L2 cache

the cpuid 0x80000006 method of getting l2 cache information
doesn't work here

> cpu0: smt 0, core 0, package 0
> mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
> cpu0: apic clock running at 38MHz
> cpu0: mwait min=64, max=64, C-substates=0.2.0.1.2.1.1.1, IBE

> cpu0: Enhanced SpeedStep 63762 MHz: speeds: 2701, 2700, 2600, 2500, 2300, 
> 2100, 1900, 1700, 1600, 1400, 1200, 1100, 900, 700, 600, 400 MHz

the 8253/8254 timer on recent intel machines doesn't work as expected

that is why '63762 MHz' is claimed before tsc is used

same behaviour we saw on the earlier comet lake machines
https://marc.info/?l=openbsd-bugs&m=160913944524804&w=2

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