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Support amd pstate driver
Needs testing, NormalPublicFEATURE REQUEST

Description

https://docs.kernel.org/admin-guide/pm/amd-pstate.html

The pstate driver should be compiled into the kernel

CONFIG_X86_AMD_PSTATE=y
CONFIG_X86_AMD_PSTATE_DEFAULT_MODE=3

Then it could be optionally enabled with an config command:

set system option kernel amd-pstate-driver (active|passive|guided)

which sets the kernel argument to initcall_blacklist=acpi_cpufreq_init amd_pstate=guide to enable the amd pstate_driver on AMD Ryzen/Epyc CPUs

Details

Version
-
Is it a breaking change?
Perfectly compatible

Event Timeline

Viacheslav triaged this task as Normal priority.Sep 6 2024, 10:11 AM
Viacheslav changed the task status from Open to Needs testing.Sep 9 2024, 11:28 AM
Viacheslav assigned this task to nvollmar.
dmbaturin removed a project: Restricted Project.Oct 14 2024, 8:55 AM
dmbaturin changed Is it a breaking change? from Unspecified (possibly destroys the router) to Perfectly compatible.
dmbaturin changed Issue type from Unspecified (please specify) to improvement.