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

[Giovanni Gherdovich <ggherdovich@suse.cz>]

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