[PATCH] iommu/arm-smmu-v3: Fix access for STE.SHCFG

Will Deacon will at kernel.org
Tue Mar 26 10:23:18 PDT 2024


On Sat, 23 Mar 2024 13:46:58 +0000, Mostafa Saleh wrote:
> STE attributes(NSCFG, PRIVCFG, INSTCFG) use value 0 for "Use Icomming",
> for some reason SHCFG doesn't follow that, and it is defined as "0b01".
> 
> Currently the driver sets SHCFG to Use Incoming for stage-2 and bypass
> domains.
> 
> However according to the User Manual (ARM IHI 0070 F.b):
> 	When SMMU_IDR1.ATTR_TYPES_OVR == 0, this field is RES0 and the
> 	incoming Shareability attribute is used.
> 
> [...]

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

[1/1] iommu/arm-smmu-v3: Fix access for STE.SHCFG
      https://git.kernel.org/will/c/ec9098d6bffe

Cheers,
-- 
Will

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