linux-kernel - Re: [PATCH v3] iommu/arm-smmu-qcom: hide last LPASS SMMU context bank from linux

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Message-Id: <172442858770.2796746.16801443724407766952.b4-ty@kernel.org>
Date: Fri, 23 Aug 2024 18:02:11 +0100
From: Will Deacon <will@...nel.org>
To: Rob Clark <robdclark@...il.com>,
	Robin Murphy <robin.murphy@....com>,
	Joerg Roedel <joro@...tes.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Marc Gonzalez <mgonzalez@...ebox.fr>
Cc: catalin.marinas@....com,
	kernel-team@...roid.com,
	Will Deacon <will@...nel.org>,
	iommu@...ts.linux.dev,
	linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	Arnaud Vrac <avrac@...ebox.fr>,
	Pierre-Hugues Husson <phhusson@...ebox.fr>,
	Marijn Suijten <marijn.suijten@...ainline.org>,
	Caleb Connolly <caleb.connolly@...aro.org>
Subject: Re: [PATCH v3] iommu/arm-smmu-qcom: hide last LPASS SMMU context bank from linux

On Tue, 20 Aug 2024 15:27:19 +0200, Marc Gonzalez wrote:
> On qcom msm8998, writing to the last context bank of lpass_q6_smmu
> (base address 0x05100000) produces a system freeze & reboot.
> 
> The hardware/hypervisor reports 13 context banks for the LPASS SMMU
> on msm8998, but only the first 12 are accessible...
> Override the number of context banks
> 
> [...]

Applied to will (for-joerg/arm-smmu/updates), thanks!

[1/1] iommu/arm-smmu-qcom: hide last LPASS SMMU context bank from linux
      https://git.kernel.org/will/c/3a8990b8a778

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev