On 05.05.17 17:38:04, Geetha sowjanya wrote: > 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 This split into patches does not look reasonable to me. 1 patch only for each workaround should be sufficient. -Robert > > 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
