On Tue, May 30, 2017 at 05:33:38PM +0530, Geetha sowjanya wrote: > 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 Yes so it is not standalone. How are we going to merge these ACPI IORT/ACPICA/SMMU patches - inclusive of: [1] https://www.spinics.net/lists/arm-kernel/msg586458.html Rafael, do ACPICA patches go upstream via the ACPI tree pull request ? To remove dependency on ACPICA changes this series needs updating anyway and for [1] above I think the only solution is for all the patches to go via the ACPI tree (if ACPICA updates go upstream with it). Thanks, Lorenzo > Changes since v6: > - Changed device tree compatible string to vendor specific. > - Rebased on Robin's latest "Update SMMU models for IORT rev. C" v2 patch. > https://www.spinics.net/lists/arm-kernel/msg582809.html > > Changes since v5: > - Rebased on Robin's "Update SMMU models for IORT rev. C" patch. > https://www.spinics.net/lists/arm-kernel/msg580728.html > - Replaced ACPI_IORT_SMMU_V3_CAVIUM_CN99XX macro with ACPI_IORT_SMMU_CAVIUM_CN99XX > > Changes since v4: > - Replaced all page1 offset macros ARM_SMMU_EVTQ/PRIQ_PROD/CONS with > arm_smmu_page1_fixup(ARM_SMMU_EVTQ/PRIQ_PROD/CONS, smmu) > > Changes since v3: > - Merged patches 1, 2 and 4 of Version 3. > - Modified the page1_offset_adjust() and get_irq_flags() implementation as > suggested by Robin. > > Changes since v2: > - Updated "Documentation/devicetree/bindings/iommu/arm,smmu-v3.txt" document with > new SMMU option used to enable errata workaround. > > Changes since 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. > > Geetha Sowjanya (1): > iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #126 > > Linu Cherian (2): > ACPI/IORT: Fixup SMMUv3 resource size for Cavium ThunderX2 SMMUv3 > model > iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum > #74 > > Documentation/arm64/silicon-errata.txt | 2 + > .../devicetree/bindings/iommu/arm,smmu-v3.txt | 6 ++ > drivers/acpi/arm64/iort.c | 10 ++- > drivers/iommu/arm-smmu-v3.c | 93 ++++++++++++++++---- > 4 files changed, 91 insertions(+), 20 deletions(-) > -- 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
