linux-kernel - Re: [PATCH] hwmon: (k10temp) Add AMD family 17h model 60h probe

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Message-ID: <alpine.LNX.2.20.13.2006171739010.31660@monopod.intra.ispras.ru>
Date:   Wed, 17 Jun 2020 17:54:36 +0300 (MSK)
From:   Alexander Monakov <amonakov@...ras.ru>
To:     Jacky Hu <hengqing.hu@...il.com>
cc:     Guenter Roeck <linux@...ck-us.net>, linux-hwmon@...r.kernel.org,
        linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org,
        tony.luck@...el.com, x86@...nel.org, yazen.ghannam@....com,
        bp@...en8.de, clemens@...isch.de
Subject: Re: [PATCH] hwmon: (k10temp) Add AMD family 17h model 60h probe

Hi,

I've already said in my patch submission (which was Cc'ed to LKML,
linux-edac and linux-hwmon so you should have been able to find it):

>> It appears SMU offsets for reading current/voltage and CCD temperature
>> have changed for this generation (reads from currently used offsets
>> yield zeros), so those features cannot be enabled so trivially.

In https://github.com/FlyGoat/ryzen_nb_smu/issues/3 there some
reverse-engineered info that indicates that for Renoir, SMU region has been
moved to 0x6F000. Its layout also changed, as far as I can tell.

(also, please ask yourself if you want to offer the maintainers an apology)

Alexander