FW16 and SPL / STAPM

Framework Laptop 16 Linux
1

Hi,

Has anyone noticed that the “performance” slider profile on the FW16 sets the following:
PMF: SPL 45000mW, sPPT 54000mW, fPPT 65000mW, p3T 227000mW, ao_sppt 0mW

SPL == STAPM in “ryzenadj -i”

I have also noticed that ryzenadj cannot change the STAPM value.
Only the performance slider can adjust it.
I.e. The EC controls it, and Linux userspace cannot touch it.

Performance:
PMF: SPL 45000mW, sPPT 54000mW, fPPT 65000mW, p3T 227000mW, ao_sppt 0mW
Balanced:
PMF: SPL 40000mW, sPPT 48000mW, fPPT 58000mW, p3T 170000mW, ao_sppt 0mW
Power Safer:
PMF: SPL 30000mW, sPPT 36000mW, fPPT 44000mW, p3T 170000mW, ao_sppt 0mW

As a result of this, amdgpu_top shows the Throttle: SPL that kind of prevents the CPU getting above 90% use.

I don’t know what has changed recently, but I used to get 100% CPU use when pushed with stress-ng. I think that was when I had disabled the performance slider entirely. So it just used boot up values.

2

Only upwards or also not downwards?

3

ryzenadj cannot adjust it at all.
I get this (if I fix ryzenadj to actually change the correct register, which is reg 0. :
“set_stapm_limit is not supported on this SMU”
It just silently ignore the change otherwise.

I have FW16 BIOS 03.05 installed.

4

Interesting, then it isn’t one of the upper limit layers.

Are you running the newest git version of ryzenadj, they recently changed some stuff for this generation. Then again I don’t think it impacted specifically this.

5

Looking at what the settings were previously (performance slider disabled), I was seeing various settings:
PMF: SPL 45000mW, sPPT 54000mW, fPPT 60000mW, p3T 170000mW, ao_sppt 60000mW]
PMF: SPL 45000mW, sPPT 54000mW, fPPT 60000mW, p3T 65000mW, ao_sppt 60000mW]
PMF: SPL 30000mW, sPPT 30000mW, fPPT 30000mW, p3T 65000mW, ao_sppt 60000mW]

I think the main different between then and now is the ao_sppt setting.
Then it was 60000mW, now it is 0mW.

I can now get to 100% CPU, but it does not seem to depend on ao_sppt at all.
I think maybe I was making mistakes with the measurements.