linux-kernel - Re: [PATCH v2 1/2] arm64: Move Mediatek GIC quirk handling from irqchip to core

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Message-Id: <169945831991.2744977.435558730470523982.b4-ty@arm.com>
Date:   Wed,  8 Nov 2023 15:46:00 +0000
From:   Catalin Marinas <catalin.marinas@....com>
To:     Marc Zyngier <maz@...nel.org>, Mark Rutland <mark.rutland@....com>,
        Will Deacon <will@...nel.org>,
        Chen-Yu Tsai <wenst@...omium.org>,
        Douglas Anderson <dianders@...omium.org>
Cc:     Amit Daniel Kachhap <amit.kachhap@....com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        James Morse <james.morse@....com>,
        Joey Gouly <joey.gouly@....com>,
        Mark Brown <broonie@...nel.org>,
        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 v2 1/2] arm64: Move Mediatek GIC quirk handling from irqchip to core

On Tue, 07 Nov 2023 07:26:56 -0800, Douglas Anderson wrote:
> In commit 44bd78dd2b88 ("irqchip/gic-v3: Disable pseudo NMIs on
> Mediatek devices w/ firmware issues") we added a method for detecting
> Mediatek devices with broken firmware and disabled pseudo-NMI. While
> that worked, it didn't address the problem at a deep enough level.
> 
> The fundamental issue with this broken firmware is that it's not
> saving and restoring several important GICR registers. The current
> list is believed to be:
> * GICR_NUM_IPRIORITYR
> * GICR_CTLR
> * GICR_ISPENDR0
> * GICR_ISACTIVER0
> * GICR_NSACR
> 
> [...]

Applied to arm64 (for-next/core), thanks!

[1/2] arm64: Move Mediatek GIC quirk handling from irqchip to core
      https://git.kernel.org/arm64/c/1d816ba168ea
[2/2] Revert "arm64: smp: avoid NMI IPIs with broken MediaTek FW"
      https://git.kernel.org/arm64/c/4bb49009e071

Also "s/Mediatek/MediaTek/".

-- 
Catalin