From: Linu Cherian <linu.cherian@xxxxxxxxxx> Cavium ThunderX2 SMMUv3 implementation has two Silicon Erratas. 1. Errata ID #74 SMMU register alias Page 1 is not implemented 2. Errata ID #126 SMMU doesnt support unique IRQ lines and also MSI for gerror, eventq and cmdq-sync The following patchset does software workaround for these two erratas. This series is based on patchset. https://www.spinics.net/lists/arm-kernel/msg578443.html Changes from v1: Since the use of MIDR register is rejected and SMMU_IIDR is broken on this silicon, as suggested by Will Deacon modified the patches to use ThunderX2 SMMUv3 IORT model number to enable errata workaround. Changes from v2: Updated "Documentation/devicetree/bindings/iommu/arm,smmu-v3.txt" document with new SMMU option used to enable errata workaround. Geetha Sowjanya (1): iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #126 Linu Cherian (6): iommu/arm-smmu-v3: Introduce smmu option PAGE0_REGS_ONLY for ThunderX2 errata#74. iommu/arm-smmu-v3: Do resource size checks based on SMMU option PAGE0_REGS_ONLY ACPICA: IORT: Add Cavium ThunderX2 SMMUv3 model definition. iommu/arm-smmu-v3: For ACPI based device probing, set PAGE0_REGS_ONLY option for ThunderX2 SMMUv3 implementations. ACPI/IORT: Fixup SMMUv3 resource size for Cavium ThunderX2 SMMUv3 model arm64: Documentation: Add Cavium ThunderX2 SMMUv3 erratas Documentation/arm64/silicon-errata.txt | 2 + drivers/acpi/arm64/iort.c | 10 ++- drivers/iommu/arm-smmu-v3.c | 122 ++++++++++++++++++++++++++------- include/acpi/actbl2.h | 2 + 4 files changed, 110 insertions(+), 26 deletions(-) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
