[coreboot-gerrit] Change in ...coreboot[master]: intelblocks/cpu: Add function to enable maximum efficiency

Werner Zeh (Code Review) gerrit at coreboot.org
Wed Nov 21 15:07:03 CET 2018


Hello Mario Scheithauer, Huang Jin, build bot (Jenkins), Aaron Durbin, 

I'd like you to reexamine a change. Please visit

    https://review.coreboot.org/c/coreboot/+/29771

to look at the new patch set (#2).

Change subject: intelblocks/cpu: Add function to enable maximum efficiency
......................................................................

intelblocks/cpu: Add function to enable maximum efficiency

Provide a library function to set the CPU frequency to maximum
efficiency value. This will result in the lowest possible CPU clock with
the lowest possible power consumption. This can be useful in mobile
devices where the power dissipation is limited.

This setting can be overruled by the OS if it has an p-state driver
which can adjust the clock to it's need.

Change-Id: I817095b13ab8cbaab82f25c72947b00ee854d549
Signed-off-by: Werner Zeh <werner.zeh at siemens.com>
---
M src/soc/intel/common/block/cpu/cpulib.c
M src/soc/intel/common/block/include/intelblocks/cpulib.h
2 files changed, 26 insertions(+), 0 deletions(-)


  git pull ssh://review.coreboot.org:29418/coreboot refs/changes/71/29771/2
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-Change-Id: I817095b13ab8cbaab82f25c72947b00ee854d549
Gerrit-Change-Number: 29771
Gerrit-PatchSet: 2
Gerrit-Owner: Werner Zeh <werner.zeh at siemens.com>
Gerrit-Reviewer: Aaron Durbin <adurbin at gmail.com>
Gerrit-Reviewer: Huang Jin <huang.jin at intel.com>
Gerrit-Reviewer: Mario Scheithauer <mario.scheithauer at siemens.com>
Gerrit-Reviewer: Werner Zeh <werner.zeh at siemens.com>
Gerrit-Reviewer: build bot (Jenkins) <no-reply at coreboot.org>
Gerrit-CC: Nico Huber <nico.h at gmx.de>
Gerrit-MessageType: newpatchset
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