New: Regression on AMD pstate cannot control turbo boost after wake from suspend
https://bugzilla.kernel.org/show_bug.cgi?id=220433
Bug ID: 220433
Summary: Regression on AMD pstate cannot control turbo boost
after wake from suspend
Product: Power Management
Version: 2.5
Hardware: AMD
OS: Linux
Status: NEW
Severity: normal
Priority: P3
Component: cpufreq
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Somewhere between 6.12.37 and 6.13.3, after a wake from suspend, /sys/devices/system/cpu/cpufreq/boost no longer correspond to whether my CPU is boosting. Even though /sys/devices/system/cpu/cpufreq/boost reads 0, my CPU is clearly still boosting judging from both fan speed/heat and cpuinfo:
======
analyzing CPU 12:
driver: amd-pstate
CPUs which run at the same hardware frequency: 12
CPUs which need to have their frequency coordinated by software: 12 maximum transition latency: 20.0 us
hardware limits: 400 MHz - 3.20 GHz
available cpufreq governors: conservative ondemand userspace powersave
performance schedutil
current policy: frequency should be within 400 MHz and 3.20 GHz.
The governor "schedutil" may decide which speed to use within this range.
current CPU frequency: 3.79 GHz (asserted by call to kernel) boost state support:
Supported: yes
Active: yes
amd-pstate limits:
Highest Performance: 196. Maximum Frequency: 4.46 GHz. Nominal Performance: 119. Nominal Frequency: 3.20 GHz.
Lowest Non-linear Performance: 41. Lowest Non-linear Frequency: 1.10 GHz. Lowest Performance: 15. Lowest Frequency: 400 MHz.
Preferred Core Support: 1. Preferred Core Ranking: 196.
======
(the CPU's max freq is 3.20 GHz without turbo boost, with turbo boost it can get up to 4.1 GHz)
I'm on amd_pstate=passive, not running in active mode because I want to control the frequencies and turbo boost.
I'm trying to bisect but I failed to build both 6.13 and 6.13.1 for some reason :(
System info:
Solus 4.7 Endurance x86_64
CPU: AMD Ryzen 7 5800H with Radeon Graphics
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[Bug 220433] Regression on AMD pstate cannot control turbo boost after wake from suspend
https://bugzilla.kernel.org/show_bug.cgi?id=220433
Artem S. Tashkinov ([email protected]) changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
--- Comment #1 from Artem S. Tashkinov ([email protected]) --- First check 6.16 or soon to be released 6.16.1
If it's still reproducible please bisect:
https://docs.kernel.org/admin-guide/bug-bisect.html
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[Bug 220433] Regression on AMD pstate cannot control turbo boost after wake from suspend
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=220433
Gavin Zhao ([email protected]) changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |RESOLVED
Resolution|--- |PATCH_ALREADY_AVAILABLE--- Comment #2 from Gavin Zhao ([email protected]) ---
Ah shoot v6.16 fixed it in 98b52c6b0b528, my distro on v6.15 so didn't get the fix. Sorry for the noise!
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