From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geetha sowjanya Subject: [PATCH v2 0/7] Cavium ThunderX2 SMMUv3 errata workarounds Date: Thu, 4 May 2017 18:05:32 +0530 Message-ID: <1493901339-14929-1-git-send-email-gakula@caviumnetworks.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from mail-by2nam03on0067.outbound.protection.outlook.com ([104.47.42.67]:20160 "EHLO NAM03-BY2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751127AbdEDMye (ORCPT ); Thu, 4 May 2017 08:54:34 -0400 Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: will.deacon@arm.com, robin.murphy@arm.com, lorenzo.pieralisi@arm.com, hanjun.guo@linaro.org, sudeep.holla@arm.com, iommu@lists.linux-foundation.org Cc: jcm@redhat.com, linux-kernel@vger.kernel.org, robert.richter@cavium.com, catalin.marinas@arm.com, sgoutham@cavium.com, linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, geethasowjanya.akula@gmail.com, linu.cherian@cavium.com, Charles.Garcia-Tobin@arm.com From: Linu Cherian 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. 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