[Bug 218264] [amdtemp] does not recognize AMD Ryzen/Chipset temperature sensors

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=218264

            Bug ID: 218264
           Summary: [amdtemp] does not recognize AMD Ryzen/Chipset
                    temperature sensors
           Product: Base System
           Version: CURRENT
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: nbe at renzel.net

My system: FreeBSD 12.0-CURRENT #0 334829e6c(drm-next)-dirty
My CPU: AMD Ryzen 1700

after kldloading "amdtemp", there are still no temperature values under 
"sysctl dev.cpu".

dmidecode -t processor
---------------------------------------------------------------------------------
# dmidecode 3.0
Scanning /dev/mem for entry point.
SMBIOS 3.0 present.

Handle 0x002D, DMI type 4, 48 bytes
Processor Information
        Socket Designation: AM4
        Type: Central Processor
        Family: <OUT OF SPEC>
        Manufacturer: Advanced Micro Devices, Inc.
        ID: 11 0F 80 00 FF FB 8B 17
        Version: AMD Ryzen 7 1700 Eight-Core Processor          
        Voltage: 1.2 V
        External Clock: 100 MHz
        Max Speed: 3400 MHz
        Current Speed: 3400 MHz
        Status: Populated, Enabled
        Upgrade: <OUT OF SPEC>
        L1 Cache Handle: 0x002A
        L2 Cache Handle: 0x002B
        L3 Cache Handle: 0x002C
        Serial Number: Unknown
        Asset Tag: Unknown
        Part Number: Unknown
        Core Count: 8
        Core Enabled: 8
        Thread Count: 16
        Characteristics:
                64-bit capable
---------------------------------------------------------------------------------



TIA and regards,
Nils

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