Hi, Here's a series adding support for the IOMMU introduced in the Allwinner H6. The driver from Allwinner hints at more SoCs using it in the future (with more masters), so we can bet on that IOMMU becoming pretty much standard in new SoCs from Allwinner.
One thing I wasn't really sure about was how to expose the statistics reported by the IOMMU PMU (TLB hit rates, latencies, and so on). The Allwinner driver exposes them through custom sysfs files, while they would be best represented through perf I guess? Anyway, I'm planning to support them later on. Let me know what you think, Maxime Maxime Ripard (3): dt-bindings: iommu: Add Allwinner H6 IOMMU bindings iommu: Add Allwinner H6 IOMMU driver arm64: dts: allwinner: h6: Add IOMMU Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml | 61 ++++- arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 11 +- drivers/iommu/Kconfig | 10 +- drivers/iommu/Makefile | 1 +- drivers/iommu/sun50i-iommu.c | 1126 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++- 5 files changed, 1209 insertions(+) create mode 100644 Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml create mode 100644 drivers/iommu/sun50i-iommu.c base-commit: e42617b825f8073569da76dc4510bfa019b1c35a -- git-series 0.9.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
