Add support for AMD PMF Cool and Quiet Framework (CnQF)
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
New
|
Undecided
|
Unassigned | ||
linux-oem-6.0 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Jammy |
Fix Released
|
High
|
You-Sheng Yang | ||
Kinetic |
Invalid
|
Undecided
|
Unassigned |
Bug Description
[SRU Justification]
[Impact]
Missing AMD CnQF that will dynamically adjust performance and power
consumption based upon OEM specified metrics on supported systems.
[Fix]
Three commits from linux-next to be backported to oem-6.0 and above.
[Test Case]
To enable this in AMD Phoenix CRB:
BIOS: AMD PBS > AMD PMF Settings, enable function 11/12 & flag=1
And feature enabled message should appear in dmesg:
[ 3.203628] amd-pmf AMDI0102:00: registered PMF device successfully
Access via sysfs:
root@
on
[Where problems could occur]
This is a new feature and will probably receive some more fixes in the
future. So far we have little, in both kernel and userspace, runtime and
testing, involved.
[Other Info]
This series depends on AMD PMF support in bug 1987670. And since these
patches targets v6.1 and AMD phoenix target oem-6.0, only oem-6.0 and
unstable is nominated for fix.
========== original bug description ==========
CnQF is a feature that will dynamically adjust performance and power consumption based upon OEM specified metrics on supported systems.
This is targeted for 6.1.
platform/
https:/
platform/
https:/
Documentation/
https:/
Changed in linux-oem-6.0 (Ubuntu Kinetic): | |
status: | New → Invalid |
Changed in linux-oem-6.0 (Ubuntu Jammy): | |
status: | New → In Progress |
tags: | added: amd oem-priority originate-from-1990548 |
Changed in linux-oem-6.0 (Ubuntu Jammy): | |
status: | In Progress → Fix Committed |
Included in linux-oem-6.0/jammy version 6.0.0-9004.4+exp.10 in https:/ /launchpad. net/~canonical- hwe-team/ +archive/ ubuntu/ intermediate- kernel.