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New: cpufreq ondemand not work in my system

Bug 101241 [email protected] 1 participant 6 messages Jul 9, 2015 – Aug 23, 2016

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https://bugzilla.kernel.org/show_bug.cgi?id=101241

            Bug ID: 101241
           Summary: cpufreq ondemand not work in my system
           Product: Power Management
           Version: 2.5
    Kernel Version: 2.6.32
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: cpufreq
          Assignee: [email protected]
          Reporter: [email protected]
        Regression: No

I want to use cpufreq "ondemand" policy to change the CPU frequency dynamiclly.

But when I insmod the powernow-k8 driver, it detected below data

Jul  9 11:11:43 localhost kernel: powernow-k8: Found 1 AMD GX-416RA SOC        
                       (4 cpu cores) (version 2.20.00)
Jul  9 11:11:43 localhost kernel: powernow-k8:    0 : pstate 0 (1600 MHz)
Jul  9 11:11:43 localhost kernel: powernow-k8:    1 : pstate 1 (1600 MHz)
Jul  9 11:11:43 localhost kernel: powernow-k8:    2 : pstate 2 (1600 MHz)
Jul  9 11:11:43 localhost kernel: powernow-k8:    3 : pstate 3 (1600 MHz)
Jul  9 11:11:43 localhost kernel: powernow-k8:    4 : pstate 4 (1600 MHz)
Jul  9 11:11:43 localhost kernel: powernow-k8:    5 : pstate 5 (1600 MHz)

Why the CPU frequency is fixed? is it caused by BIOS setting? Is there some methods to modify the limit in software not BIOS?

Thanks

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#1 lore raw

[Bug 101241] cpufreq ondemand not work in my system

https://bugzilla.kernel.org/show_bug.cgi?id=101241

Chen Yu <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected]

--- Comment #1 from Chen Yu <[email protected]> --- are you using acpi-cpufreq driver?

plz provide following log with latest 4.4-rc1 if possible

skywalker@sky-lake:/$ grep . /sys/devices/system/cpu/cpu0/cpufreq/*

thank you

Yu

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#3 lore raw

[Bug 101241] cpufreq ondemand does not work on AMD GX-416RA SOC

In reply to [email protected]

https://bugzilla.kernel.org/show_bug.cgi?id=101241

Len Brown <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------

                 CC|                            |[email protected]
            Summary|cpufreq ondemand not work   |cpufreq ondemand does not
                   |in my system                |work on AMD GX-416RA SOC
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#4 lore raw

[Bug 101241] cpufreq ondemand does not work on AMD GX-416RA SOC

In reply to [email protected]

https://bugzilla.kernel.org/show_bug.cgi?id=101241

Chen Yu <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------

             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #3 from Chen Yu <[email protected]> ---
As we did not get response for quite sometime I'm closing this ticket, please feel free to reopen if you want to continue to debug on this.

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