[Bug 110208] New GPU sysfs Power State Interface for custom pp_od_clk_voltage

[Bug 110208] New GPU sysfs Power State Interface for custom pp_od_clk_voltage

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=110208

            Bug ID: 110208
           Summary: New GPU sysfs Power State Interface for custom
                    pp_od_clk_voltage
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: richard.llom@gmail.com

In order to use a custom pp_od_clk_voltage one has to set
power_dpm_force_performance_level to manual.

However this way it is not possible to use custom pp_od_clk_voltage and force -
for instance - high or peak performance levels.


The forcing of different performance levels doesn't (and shouldn't) relate to
custom clocks/voltages. Putting this setting in the same interface is a poor
choice and (unnecessarily) restricts the possibilities.


Please add a new sysfs interface for *solely* choosing between default and
custom pp_od_clk_voltage.

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[Bug 110208] New GPU sysfs Power State Interface for custom pp_od_clk_voltage

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https://bugs.freedesktop.org/show_bug.cgi?id=110208

--- Comment #1 from famo <richard.llom@gmail.com> ---
Link to  documentation:
https://dri.freedesktop.org/docs/drm/gpu/amdgpu.html#power-dpm-force-performance-level

Quote:
pp_od_clk_voltage

The amdgpu driver provides a sysfs API for adjusting the clocks and voltages in
each power level within a power state. The pp_od_clk_voltage is used for this.

< For Vega10 and previous ASICs >

Reading the file will display:

    a list of engine clock levels and voltages labeled OD_SCLK
    a list of memory clock levels and voltages labeled OD_MCLK
    a list of valid ranges for sclk, mclk, and voltage labeled OD_RANGE

To manually adjust these settings, first select manual using
power_dpm_force_performance_level. ...

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[Bug 110208] New GPU sysfs Power State Interface for custom pp_od_clk_voltage

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https://bugs.freedesktop.org/show_bug.cgi?id=110208

Martin Peres <martin.peres@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |MOVED

--- Comment #2 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/731.

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