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

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Date:   Mon, 27 Jan 2020 21:54:50 +0000
From:   lukasz.luba@....com
To:     kgene@...nel.org, krzk@...nel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-pm@...r.kernel.org
Cc:     myungjoo.ham@...sung.com, kyungmin.park@...sung.com,
        cw00.choi@...sung.com, robh+dt@...nel.org, mark.rutland@....com,
        b.zolnierkie@...sung.com, lukasz.luba@....com,
        dietmar.eggemann@....com
Subject: [PATCH 0/3] Enable Odroid-XU3/4 to use Energy Model and Energy Aware Scheduler 

From: Lukasz Luba <lukasz.luba@....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(+)

-- 
2.17.1