Re: [PATCH v2 0/2] Add arm-smmu-v3 support for Laguna SMMU silicon erratum workaround
From: Will Deacon
Date: Fri Oct 02 2026 - 12:48:26 EST
On Fri, 11 Sep 2026 21:21:04 +0000, Peter Griffin wrote:
> The Google Tensor G5 SoC (Laguna) has a silicon erratum with the SMMU
> integration where the AxPROT[2] signal is always 1, which makes all
> transactions appear as instructions.
>
> As a software workaround we make use of the INSTCFG override feature to
> force all incoming traffic to data.
>
> [...]
Applied second patch to iommu (arm/smmu/updates), thanks!
[2/2] iommu/arm-smmu-v3: Add support for arm,instdata-override DT property
https://git.kernel.org/iommu/c/937bbba25930
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev