linux-kernel - Re: [PATCH v2] iommu/arm-smmu-qcom: Add SM6115 MDSS compatible

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Message-Id: <175249142645.1452379.7552857097102932534.b4-ty@kernel.org>
Date: Mon, 14 Jul 2025 12:54:27 +0100
From: Will Deacon <will@...nel.org>
To: robin.clark@....qualcomm.com,
	robin.murphy@....com,
	linux-arm-msm@...r.kernel.org,
	Alexey Klimov <alexey.klimov@...aro.org>
Cc: catalin.marinas@....com,
	kernel-team@...roid.com,
	Will Deacon <will@...nel.org>,
	joro@...tes.org,
	iommu@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	stable@...r.kernel.org,
	andersson@...nel.org,
	dmitry.baryshkov@....qualcomm.com
Subject: Re: [PATCH v2] iommu/arm-smmu-qcom: Add SM6115 MDSS compatible

On Fri, 13 Jun 2025 18:32:38 +0100, Alexey Klimov wrote:
> Add the SM6115 MDSS compatible to clients compatible list, as it also
> needs that workaround.
> Without this workaround, for example, QRB4210 RB2 which is based on
> SM4250/SM6115 generates a lot of smmu unhandled context faults during
> boot:
> 
> arm_smmu_context_fault: 116854 callbacks suppressed
> arm-smmu c600000.iommu: Unhandled context fault: fsr=0x402,
> iova=0x5c0ec600, fsynr=0x320021, cbfrsynra=0x420, cb=5
> arm-smmu c600000.iommu: FSR    = 00000402 [Format=2 TF], SID=0x420
> arm-smmu c600000.iommu: FSYNR0 = 00320021 [S1CBNDX=50 PNU PLVL=1]
> arm-smmu c600000.iommu: Unhandled context fault: fsr=0x402,
> iova=0x5c0d7800, fsynr=0x320021, cbfrsynra=0x420, cb=5
> arm-smmu c600000.iommu: FSR    = 00000402 [Format=2 TF], SID=0x420
> 
> [...]

Applied to iommu (arm/smmu/bindings), thanks!

[1/1] iommu/arm-smmu-qcom: Add SM6115 MDSS compatible
      https://git.kernel.org/iommu/c/f7fa8520f303

Cheers,
-- 
Will

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