linux-kernel - Re: [PATCH 1/2] arm64: smp: Fix pseudo NMI issues w/ broken Mediatek FW

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Date:   Wed, 04 Oct 2023 11:15:39 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     Mark Rutland <mark.rutland@....com>
Cc:     Doug Anderson <dianders@...omium.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Valentin Schneider <vschneid@...hat.com>,
        Chen-Yu Tsai <wenst@...omium.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        D Scott Phillips <scott@...amperecomputing.com>,
        Josh Poimboeuf <jpoimboe@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Misono Tomohiro <misono.tomohiro@...itsu.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Sumit Garg <sumit.garg@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH 1/2] arm64: smp: Fix pseudo NMI issues w/ broken Mediatek FW

On Wed, 04 Oct 2023 10:59:50 +0100,
Mark Rutland <mark.rutland@....com> wrote:
> 
> Given you haven't seen any issues, I suspect those are getting reset to fixed
> values that happens to work out for us, but it is a bit worrisome more
> generally (e.g. the LPI case above).

It is likely that these SoCs don't even have an ITS.

	M.

-- 
Without deviation from the norm, progress is not possible.