[Bug 220433] New: Regression on AMD pstate cannot control turbo boost after wake from suspend

[Bug 220433] New: Regression on AMD pstate cannot control turbo boost after wake from suspend

[bugzilla-daemon]

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: linux-pm@vger.kernel.org
          Reporter: me@gzgz.dev
        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

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=220433

Artem S. Tashkinov (aros@gmx.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #1 from Artem S. Tashkinov (aros@gmx.com) ---
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

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=220433

Gavin Zhao (me@gzgz.dev) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |RESOLVED
         Resolution|---                         |PATCH_ALREADY_AVAILABLE

--- Comment #2 from Gavin Zhao (me@gzgz.dev) ---
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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