SparkyLinux Forums

Hi! @pavroo


I would like to know, if the sparky 5.19.x series kernels, use AMD's P-state driver for Zen2 and Zen3 processors.

As always, thank you very much for all your work and support with SparkyLinux. (https://i.imgur.com/RKk45Tn.gif)









Cheers !!  (https://i.imgur.com/emjz0.gif)

Quote from: AxL on August 26, 2022, 04:17:41 PM[...]
I would like to know, if the sparky 5.19.x series kernels, use AMD's P-state driver for Zen2 and Zen3 processors.

Anyway, if after four days there is no answer, it is clear to me that your kernels don't use AMD P-state. (https://i.imgur.com/jwFubep.gif)


Thanks anyway

(https://i.imgur.com/bDtcOwK.gif) For those who might be interested:


The latest version of the kernel (6.1.x series) amd_pstate driver is included by default (builtin) in the kernel itself (NO longer available as a module anymore).


➤ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver
amd-pstate

➤ sudo modinfo amd_pstate
name:           amd_pstate
filename:       (builtin)
license:        GPL
file:           drivers/cpufreq/amd_pstate
description:    AMD Processor P-state Frequency Driver
author:         Huang Rui <ray.huang@amd.com>

So with this change, anyone who wants to enable it, will have to add 'amd_pstate=passive' to the kernel (as boot parameter) in the command line.



(https://i.imgur.com/bpw3iIG.png)




- More info:

• amd-pstate.c « cpufreq « drivers - kernel/git/stable/linux.git - Linux kernel stable tree
  
  
• amd-pstate.rst « pm « admin-guide « Documentation - kernel/git/stable/linux.git - Linux kernel stable tree
  

Cheers !!  (https://i.imgur.com/BXCIu.gif)

An update about the message written above.  (https://i.imgur.com/4GCd6.gif)

With versions 6.4.x and 6.5.x series kernels, there are new options with the amd_pstate driver.

• amd-pstate-epp:
  
  (https://i.imgur.com/ovGtGMg.png)
  
  
  (https://i.imgur.com/NvGuPDK.png)
  
  
  
  - Plus, all the new features, and new configuration options:
  
• AMD P-State and AMD P-State EPP Scaling Driver Configuration Guide
  
  
  
  
  
  
  
  
  
  
  Cheers !!  (https://i.imgur.com/emjz0.gif)
  

(https://i.imgur.com/IqZHXhe.gif)  To those who may be interested in this topic.



I hadn't used SparkyLinux kernels in more than three years ( ... since usually, I always use the XanMod Kernels).

Today, out of pure curiosity I have installed the latest LTS version (6.12.72-sparky-lts612-amd64):


(https://i.imgur.com/l8Y8esL.png)


And, I've been pleasantly surprised that it works perfectly well, using amd-pstate-epp:


(https://i.imgur.com/9stYkKg.png)


 So, my sincere thanks and congratulations to pavroo.







Cheers !!  (https://i.imgur.com/emjz0.gif)