Re: [PATCH] cpufreq/amd-pstate: Supply nominal/lowest freq for TRX40-based motherboards

[Giovanni Gherdovich]

On Wed Oct 7, 2026 21:45, Mario Limonciello wrote:
> On 10/7/26 14:38, Giovanni Gherdovich wrote:
> > On Wed Oct 7, 2026 16:56, Mario Limonciello wrote:
> > > [...]
> > > I don't understand why core count matters though.
> >
> > My thinking was:
> >
> > 1. I want to make the "quirk" to match as many chips as possible, to
> >     make it more useful and worthwhile.
> > 2. The doc I have, "Power and Thermal Data Sheet" (publication #56736
> >     in the AMD doc library), is for family 0x17, models 0x30-0x3F
> >     processors.
> > 3. Problem: these have different nominal frequencies, depending on the
> >     core count. Specifically:
> >     24 cores: 3800 MHz (like the Ryzen 3090x I need)
> >     32 cores: 3700 Mhz
> >     64 cores: 2900 MHz
> > 4. Thus I decided to match for family 0x17, model 0x30-0x3f, 24 cores.
> >     Without the core count constraint, I couldn't tell which of the
> >     three nominal frequencies above should apply.
>
> If there does need to be a quirk I guess I would actually say there
> should be 3 quirks then. One for each core count version.

Makes sense.

> > All that said, I've asked the openSUSE user to test the newer BIOS,
> > we'll see what that gives.
>
> Thanks!  Based on the findings from the BIOS update everything in
> this thread should be enough to either make a v2 incorporating
> feedback (mostly making it clearer) or to drop the patch.

Yes I think so. Thanks a lot for your support so far.


Giovanni