linux-kernel - Re: [PATCH 3/3] irqchip/gic-v3: Remove Mediatek pseudo-NMI firmware quirk handling

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Message-ID: <0efbd5a2cfb5dab0876038ae726dc180@kernel.org>
Date:   Tue, 07 Nov 2023 11:37:18 +0000
From:   Marc Zyngier <maz@...nel.org>
To:     Doug Anderson <dianders@...omium.org>
Cc:     Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Chen-Yu Tsai <wenst@...omium.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH 3/3] irqchip/gic-v3: Remove Mediatek pseudo-NMI firmware
 quirk handling

On 2023-10-30 23:01, Doug Anderson wrote:
> Hi,
> 
> On Wed, Oct 18, 2023 at 4:08 AM Mark Rutland <mark.rutland@....com> 
> wrote:
>> 
>> On Fri, Oct 06, 2023 at 03:15:53PM -0700, Douglas Anderson wrote:
>> > This is a partial revert of commit 44bd78dd2b88 ("irqchip/gic-v3:
>> > Disable pseudo NMIs on Mediatek devices w/ firmware issues"). In the
>> > patch ("arm64: Disable GiC priorities on Mediatek devices w/ firmware
>> > issues") we've moved the quirk handling to another place and so it's
>> > not needed in the GiC driver.
>> >
>> > NOTE: this isn't a full revert because it leaves some of the changes
>> > to the "quirks" structure around in case future code needs it.
>> >
>> > Signed-off-by: Douglas Anderson <dianders@...omium.org>
>> > ---
>> 
>> I think it might make sense to fold this into the patch adding the 
>> cpucap
>> detection. Otherwise, if you apply my suggestions to the first patch, 
>> there's a
>> 2-commit window where we'll have two places that log that NMI is being 
>> disabled
>> due to the FW issue. That's not a functional issue, so doesn't matter 
>> that
>> much.
>> 
>> Either way:
>> 
>> Acked-by: Mark Rutland <mark.rutland@....com>
> 
> I'm happy to go either way so I'd love some advice from maintainers
> (Marc Zyngier, Catalin Marinas, Will Deacon) about what you'd prefer.

I honestly don't mind either way. The sooner we have these fixes
upstream, the better, so my only advise would be to respin it
shortly.

Thanks,

         M.
-- 
Jazz is not dead. It just smells funny...