[PATCH v3 0/9] arm64: tegra: Prevent early SMMU faults

Krzysztof Kozlowski krzysztof.kozlowski at canonical.com
Thu Jun 10 23:48:00 PDT 2021


On Thu, 3 Jun 2021 18:46:23 +0200, Thierry Reding wrote:
> this is a set of patches that is the result of earlier discussions
> regarding early identity mappings that are needed to avoid SMMU faults
> during early boot.
> 
> The goal here is to avoid early identity mappings altogether and instead
> postpone the need for the identity mappings to when devices are attached
> to the SMMU. This works by making the SMMU driver coordinate with the
> memory controller driver on when to start enforcing SMMU translations.
> This makes Tegra behave in a more standard way and pushes the code to
> deal with the Tegra-specific programming into the NVIDIA SMMU
> implementation.
> 
> [...]

Applied, thanks!

[1/9] memory: tegra: Implement SID override programming
      (no commit info)
[2/9] dt-bindings: arm-smmu: Add Tegra186 compatible string
      commit: 4287861dca9d77490ee50de42aa3ada92da86c9d

[3/9] - skipped

[4/9] iommu/arm-smmu: tegra: Detect number of instances at runtime
      commit: 7ecbf253f8d64c08de28d16a66e3abbe873f6c9f
[5/9] iommu/arm-smmu: tegra: Implement SID override programming
      commit: 8eb68595475ac5fcaaa3718a173283df48cb4ef1
[6/9] iommu/arm-smmu: Use Tegra implementation on Tegra186
      commit: 2c1bc371268862a991a6498e1dddc8971b9076b8

Best regards,
-- 
Krzysztof Kozlowski <krzysztof.kozlowski at canonical.com>



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