linux-kernel - Re: [PATCH] arm: Fix topology setup in case of CPU hotplug for CONFIG_SCHED

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Message-ID: <9119c1db-b98d-67d4-ce4c-d9a9b298937a@arm.com>
Date:   Wed, 27 Nov 2019 15:31:38 +0100
From:   Dietmar Eggemann <dietmar.eggemann@....com>
To:     Atish Patra <atish.patra@....com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Morten Rasmussen <morten.rasmussen@....com>,
        Lukasz Luba <lukasz.luba@....com>,
        Sudeep Holla <sudeep.holla@....com>
Subject: Re: [PATCH] arm: Fix topology setup in case of CPU hotplug for
 CONFIG_SCHED_MC

On 26/11/2019 22:45, Ondřej Jirman wrote:
> On Tue, Nov 26, 2019 at 11:42:02AM +0100, Dietmar Eggemann wrote:
>> On 24/11/2019 22:47, Ondřej Jirman wrote:
>>> Hello,
>>>
>>> On Wed, Nov 20, 2019 at 10:42:12AM +0000, Dietmar Eggemann wrote:

[...]

>> Thanks for testing! Which Cpufreq driver is your system using?
> 
> Hello,
> 
> it's using cpufreq-dt.

Thanks for the info! It's dt-based so this one is safe in regards to
retrieving the correct topology core mask during CPU hp stress (i.e.
from multiple CPUs at the same time).

[...]