linux-kernel - Re: [PATCH v4 00/14] An alternative series for asymmetric AArch32 systems

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Message-ID: <20201205204301.GB8578@amd>
Date:   Sat, 5 Dec 2020 21:43:01 +0100
From:   Pavel Machek <pavel@....cz>
To:     Will Deacon <will@...nel.org>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-arch@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Catalin Marinas <catalin.marinas@....com>,
        Marc Zyngier <maz@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Morten Rasmussen <morten.rasmussen@....com>,
        Qais Yousef <qais.yousef@....com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Quentin Perret <qperret@...gle.com>, Tejun Heo <tj@...nel.org>,
        Li Zefan <lizefan@...wei.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Ingo Molnar <mingo@...hat.com>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        kernel-team@...roid.com
Subject: Re: [PATCH v4 00/14] An alternative series for asymmetric AArch32
 systems

On Tue 2020-11-24 15:50:25, Will Deacon wrote:
> Hello folks,
> 
> Here's version four of the wonderful patches I previously posted here:
> 
>   v1: https://lore.kernel.org/r/20201027215118.27003-1-will@kernel.org
>   v2: https://lore.kernel.org/r/20201109213023.15092-1-will@kernel.org
>   v3: https://lore.kernel.org/r/20201113093720.21106-1-will@kernel.org
> 
> and which started life as a reimplementation of some patches from Qais:
> 
>   https://lore.kernel.org/r/20201021104611.2744565-1-qais.yousef@arm.com
> 
> The aim of this series is to allow 32-bit ARM applications to run on
> arm64 SoCs where not all of the CPUs support the 32-bit instruction set.
> Unfortunately, such SoCs are real and will continue to be productised
> over the next few years at least.

Out of curiosity, what systems are that?

Is the 32-bit available on the big or on the little cores?

And... fun way to accelerate demise of arm32 :-).

Best regards,
									Pavel
-- 
http://www.livejournal.com/~pavelmachek

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