Differential D55010

hwpstate_amd(4): Add knobs to get/set all fields of CPPC_REQUEST
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Authored by olce on Sat, Jan 31, 11:49 AM.

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rG7689e68506a9: hwpstate_amd(4): Add knobs to get/set all fields of CPPC_REQUEST

Summary

This will allow experimentations and finer-grained tuning to the full
extent allowed by the hardware, which is especially important given that
the spec leaves to hardware implementors an important leeway in
interpreting CPPC's numeric parameters, causing the same settings to
have different effects on different CPU models.

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rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

olce created this revision.Sat, Jan 31, 11:49 AM

Herald added a subscriber: imp. · View Herald TranscriptSat, Jan 31, 11:49 AM

olce requested review of this revision.Sat, Jan 31, 11:49 AM

Harbormaster completed remote builds in B70282: Diff 170845.Sat, Jan 31, 11:50 AM

olce added a parent revision: D55009: hwpstate_amd(4): 'epp' sysctl leaf to operate on real EPP hardware values.Sat, Jan 31, 1:27 PM

aokblast accepted this revision.Sat, Feb 7, 3:13 AM

This revision is now accepted and ready to land.Sat, Feb 7, 3:13 AM

Closed by commit rG7689e68506a9: hwpstate_amd(4): Add knobs to get/set all fields of CPPC_REQUEST (authored by olce). · Explain WhyWed, Feb 11, 8:44 PM

This revision was automatically updated to reflect the committed changes.

olce added a commit: rG7689e68506a9: hwpstate_amd(4): Add knobs to get/set all fields of CPPC_REQUEST.

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Path

Size

sys/

x86/

cpufreq/

54 lines

Diff 171795

sys/x86/cpufreq/hwpstate_amd.c

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