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[0/3] Enable Odroid-XU3/4 to use Energy Model and Energy Aware Scheduler

Message ID 20200127215453.15144-1-lukasz.luba@arm.com
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Series Enable Odroid-XU3/4 to use Energy Model and Energy Aware Scheduler | expand

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Lukasz Luba Jan. 27, 2020, 9:54 p.m. UTC 
From: Lukasz Luba <lukasz.luba@arm.com>

The Odroid-XU3/4 is a decent and easy accessible ARM big.LITTLE platform,
which might be used for research and development.

This small patch set provides possibility to run Energy Aware Scheduler (EAS)
on Odroid-XU4/3 and experiment with it. 

The patch 1 enables SCHED_MC, which adds another level in sched_domain.
The patch 2 provides 'dynamic-power-coefficient' in CPU DT nodes, which is
then is used by the Energy Model (EM).
The patch 3 enables EM and makes EAS possible to run. Please read the commit
message in the patch 3 describing how to enable or disable EAS at runtime.
Some of the test results are provided also in there.

The patch set is on top of Krzysztof's tree, branch 'next/dt' [1] and has 
been tested on Odroid-XU3.

Regards,
Lukasz Luba

[1] https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux.git/log/?h=next/dt

Lukasz Luba (3):
  ARM: exynos_defconfig: Enable SCHED_MC
  ARM: dts: exynos: Add Exynos5422 CPU dynamic-power-coefficient
    information
  ARM: exynos_defconfig: Enable Energy Model framework

 arch/arm/boot/dts/exynos5422-cpus.dtsi | 8 ++++++++
 arch/arm/configs/exynos_defconfig      | 2 ++
 2 files changed, 10 insertions(+)