Add support for Zen 4 in amdsmn and amdtemp

[diizzy]

Summary

Author: Akio Morita
Source: http://jyurai.ddo.jp/~amorita/diary/?date=20221102#p01

Appears to work fine on my Ryzen 7900 CPU with Asus ProArt X670E-Creator WiFi motherboard

[imp]

This seems good to me. I'd be tempted to make the tmp base in the identification tables, but it may no tbe worth it (what's here is likely fine, but if we have more, then we'll want to look again).
Plus a possible formatting nit.

sys/dev/amdtemp/amdtemp.c

140

double check tab vs spaces here to make it consistent.

[mhorne]

I am not knowledgeable about this driver or hardware. The change is not easy to review without context.

I guess "appears to work fine" means that it attaches and returns sensible values in the dev.amdtemp and dev.cpu sysctl trees?

sys/dev/amdtemp/amdtemp.c

342

I suspect that there is a slightly better placement for this assignment, but I can't point it out without context.

[diizzy]

Fix tab vs spaces issue

[diizzy]

@mhorne
You're correct about sysctl entries

sys/dev/amdtemp/amdtemp.c

342

I've generated a new patch with -U99999 if that's what you were referring to?

[mhorne]

LGTM! Just one thing which can be fixed before pushing.

sys/dev/amdtemp/amdtemp.c

342

Yes, thank you.

526–528

IMO sc->sc_temp_base = AMDTEMP_17H_CCD_TMP_BASE; should go here, where we subsequently probe the CCD sensors, and (maybe) overwrite its value in amdtemp_probe_ccd_sensors19h().

[diizzy]

Update with mhorne's suggestions

[diizzy]

The only issue I have is that I lack the authors email address, is there a way to work around that?

[mhorne]

In D41049#936978, @diizzy wrote:

The only issue I have is that I lack the authors email address, is there a way to work around that?

I don't know, I have never had this problem. In this case the "Source" tag you have seems fine, but phrase it as "Obtained From". Did you find the change via search engine? Maybe just state that, unless there is some way to contact the author from their website.

[diizzy]

I've left two comments (first 16th) asking for a reply but no response

[diizzy]

@freebsd_igalic.co found a person named Akio Morita on https://docs.freebsd.org/en/articles/contributors/ which I think is likely be the same person

[diizzy]

I managed to get hold of the author and a proper e-mail, since I'm not at a src committer (only ports) can someone approve it?

[mhorne]

Approved