MFC r342977 (by cem): amdtemp(4): Add support for Family 15h, Model >=60h

Family 15h is a bit of an oddball. Early models used the same temperature
register and spec (mostly[1]) as earlier CPU fami

MFC r342977 (by cem): amdtemp(4): Add support for Family 15h, Model >=60h

Family 15h is a bit of an oddball. Early models used the same temperature
register and spec (mostly[1]) as earlier CPU families.

Model 60h-6Fh and 70-7Fh use something more like Family 17h's Service
Management Network, communicating with it in a similar fashion. To support
them, add support for their version of SMU indirection to amdsmn(4) and use
it in amdtemp(4) on these models.

While here, clarify some of the deviceid macros in amdtemp(4) that were
added with arbitrary, incorrect family numbers, and remove ones that were
not used. Additionally, clarify intent and condition of heterogenous
multi-socket system detection.

[1]: 15h adds the "adjust range by -49°C if a certain condition is met,"
which previous families did not have.

Reported by: D. C. <tjoard AT gmail.com>
PR: 234657
Tested by: D. C. <tjoard AT gmail.com>

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MFC r340426 (by cem)

amdtemp(4): Fix temperature reporting on AMD 2990WX

Update the AMD family 17h temperature reporting based on AMD Tech Doc 56255
OSRR, section 4.2.1.

For CPUS w/CUR_TEMP_RANGE_

MFC r340426 (by cem)

amdtemp(4): Fix temperature reporting on AMD 2990WX

Update the AMD family 17h temperature reporting based on AMD Tech Doc 56255
OSRR, section 4.2.1.

For CPUS w/CUR_TEMP_RANGE_SEL set, scale the reported temperature into the
range -49..206; i.e., subtract 49°C.

Submitted by: gallatin@
Reported by: bcran@
Reviewed by: cem (long ago)
Approved by: re (kib)
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D16855

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MFC r340425 (by cem)

amdsmn(4)/amdtemp(4): Attach to Ryzen 2 hostbridges

As reported, tested, and patch supplied by Johannes.

There may be future work to do to support multiple sensors, but for no

MFC r340425 (by cem)

amdsmn(4)/amdtemp(4): Attach to Ryzen 2 hostbridges

As reported, tested, and patch supplied by Johannes.

There may be future work to do to support multiple sensors, but for now, any
sensor at all is a strict improvement for Ryzen 2 systems.

PR: 228480
Submitted by: Johannes Lundberg <johalun0 AT gmail.com> (earlier version)
Reported by: deischen@, Johannes, and numerous others
Early MFC approved by: cem
Approved by: re (kib)
Relnotes: yes

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