linux-kernel - [PATCH 0/3] Fixes for uclamp and capacity inversion detection

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Date:   Sun, 27 Nov 2022 14:17:39 +0000
From:   Qais Yousef <qyousef@...alina.io>
To:     Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Lukasz Luba <lukasz.luba@....com>, Wei Wang <wvw@...gle.com>,
        Xuewen Yan <xuewen.yan94@...il.com>,
        Hank <han.lin@...iatek.com>,
        Jonathan JMChen <Jonathan.JMChen@...iatek.com>,
        "Qais Yousef (Google)" <qyousef@...alina.io>
Subject: [PATCH 0/3] Fixes for uclamp and capacity inversion detection

From: "Qais Yousef (Google)" <qyousef@...alina.io>

Patch 1 addresses a smatch warning reported by Dan Carpenter.

Patch 2 fixes a couple of issues reported by Dietmar in capacity inversion
logic.

Patch 3 is an RFC patch to decouple capacity inversion detection from
performance domains which is dependent on sched_energy_enabled(). I switched to
traversing cpufreq policies instead. Rafael, Viresh please check I didn't do
something stupid here.


Thanks!

--
Qais Yousef

Qais Yousef (3):
  sched/uclamp: Fix a uninitialized variable warnings
  sched/fair: Fixes for capacity inversion detection
  sched/fair: Traverse cpufreq policies to detect capacity inversion

 drivers/cpufreq/cpufreq.c | 12 +-----------
 include/linux/cpufreq.h   | 26 ++++++++++++++++++++++++++
 kernel/sched/fair.c       | 18 +++++++++---------
 3 files changed, 36 insertions(+), 20 deletions(-)

-- 
2.25.1