head -r345758 Ryzen Threadripper 1950X vs. amdtemp.ko : dev.cpu.31 missing

[Mark Millard]

On 2019-Apr-5, at 04:46, Konstantin Belousov <kostikbel at gmail.com> wrote:

> On Thu, Apr 04, 2019 at 04:58:15PM -0700, Mark Millard via freebsd-amd64 wrote:
>> On a:
>> 
>> CPU: AMD Ryzen Threadripper 1950X 16-Core Processor  (3393.70-MHz K8-class CPU)
>>  Origin="AuthenticAMD"  Id=0x800f11  Family=0x17  Model=0x1  Stepping=1
>> Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
>> Features2=0x7ed8320b<SSE3,PCLMULQDQ,MON,SSSE3,FMA,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND>
>>  AMD Features=0x2e500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM>
>>  AMD Features2=0x35c233ff<LAHF,CMP,SVM,ExtAPIC,CR8,ABM,SSE4A,MAS,Prefetch,OSVW,SKINIT,WDT,TCE,Topology,PCXC,PNXC,DBE,PL2I,MWAITX>
>>  Structured Extended Features=0x209c01a9<FSGSBASE,BMI1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,SHA>
>>  XSAVE Features=0xf<XSAVEOPT,XSAVEC,XINUSE,XSAVES>
>>  AMD Extended Feature Extensions ID EBX=0x1007<CLZERO,IRPerf,XSaveErPtr,IBPB>
>>  SVM: NP,NRIP,VClean,AFlush,DAssist,NAsids=32768
>>  TSC: P-state invariant, performance statistics
>> 
>> after "kldload amdtemp" the following is seen:
>> 
>> # sysctl dev.cpu.31
>> sysctl: unknown oid 'dev.cpu.31'
>> 
>> # sysctl dev.cpu.30
>> dev.cpu.30.temperature: 62.1C
>> dev.cpu.30.cx_method: C1/hlt C2/io
>> dev.cpu.30.cx_usage_counters: 0 0
>> dev.cpu.30.cx_usage: 0.00% 0.00% last 1000000us
>> dev.cpu.30.cx_lowest: C1
>> dev.cpu.30.cx_supported: C1/1/0 C2/2/100
>> dev.cpu.30.%parent: acpi0
>> dev.cpu.30.%pnpinfo: _HID=none _UID=0
>> dev.cpu.30.%location: handle=\_PR_.C01F
>> dev.cpu.30.%driver: cpu
>> dev.cpu.30.%desc: ACPI CPU
>> 
>> . . . 
> 
> In the output of devinfo(8), how many CPUs do you see ?  Is there cpu31,
> and does it have amdtemp child ?

(I only used 'sysctl -a | grep "temp.*[0-9]C$"' as a short
way to show one line per dev.cpu.N so show the others  were
all present.)

cpu31 is missing in the devinfo output. The amdtempM's are under
pcibX > pciY > hostbZ , not per cpuN .

Shortended output but showing all the cpuN and amdtmpM
and their "parents" and "childern":

# devinfo
nexus0
  cryptosoft0
  vtvga0
  apic0
  ram0
  acpi0
    cpu0
      hwpstate0
      cpufreq0
    cpu1
    cpu2
    cpu3
    cpu4
    cpu5
    cpu6
    cpu7
    cpu8
    cpu9
    cpu10
    cpu11
    cpu12
    cpu13
    cpu14
    cpu15
    cpu16
    cpu17
    cpu18
    cpu19
    cpu20
    cpu21
    cpu22
    cpu23
    cpu24
    cpu25
    cpu26
    cpu27
    cpu28
    cpu29
    cpu30
    pcib0
      pci0
        hostb0
          amdsmn0
          amdtemp0
. . ,
    pcib12
      pci12
        hostb23
          amdsmn1
          amdtemp1
. . .

===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)