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Thu, 02 Jul 2020 20:42:41 -0800 Received: from MTKMBS01N2.mediatek.inc (172.21.101.79) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 2 Jul 2020 21:42:40 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 3 Jul 2020 12:42:37 +0800 Received: from localhost.localdomain (10.15.20.246) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 3 Jul 2020 12:42:33 +0800 From: Chao Hao To: Joerg Roedel , Rob Herring , "Matthias Brugger" Subject: [PATCH v6 00/10] MT6779 IOMMU SUPPORT Date: Fri, 3 Jul 2020 12:41:17 +0800 Message-ID: <20200703044127.27438-1-chao.hao@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-TM-SNTS-SMTP: E4EE501486CFE45934E76861F54A424896840F7B4C9AC2ECB55F96F8AE402C6E2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200703_004249_611465_68E7FEFA X-CRM114-Status: GOOD ( 10.11 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, FY Yang , wsd_upstream@mediatek.com, linux-kernel@vger.kernel.org, Chao Hao , iommu@lists.linux-foundation.org, TH Yang , linux-mediatek@lists.infradead.org, Yong Wu , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This patchset adds mt6779 iommu support. mt6779 has two iommus, they are MM_IOMMU(M4U) and APU_IOMMU which used ARM Short-Descriptor translation format. The mt6779's MM_IOMMU-SMI and APU_IOMMU HW diagram is as below, it is only a brief diagram: EMI | -------------------------------------- | | MM_IOMMU APU_IOMMU | | SMI_COMMOM----------- APU_BUS | | | SMI_LARB(0~11) | | | | | | | -------------- | | | | | Multimedia engine CCU VPU MDLA EMDA All the connections are hardware fixed, software can not adjust it. Compared with mt8183, SMI_BUS_ID width has changed from 10 to 12. SMI Larb number is described in bit[11:7], Port number is described in bit[6:2]. In addition, there are some registers has changed in mt6779, so we need to redefine and reuse them. The patchset only used MM_IOMMU, so we only add MM_IOMMU basic function, such as smi_larb port definition, registers definition and hardware initialization. change notes: v6: 1. Fix build error for "PATCH v5 02/10". 2. Use more precise definitions and commit messages. v5: 1. Split "iommu/mediatek: Add mt6779 IOMMU basic support(patch v4)" to three patches(from PATCH v5 08/10 to PATCH v5 10/10). 2. Use macro definitions to replace bool values in mtk_iommu_plat_data structure http://lists.infradead.org/pipermail/linux-mediatek/2020-June/013586.html v4: 1. Rebase on v5.8-rc1. 2. Fix coding style. 3. Add F_MMU_IN_DRDER_WR_EN definition in MISC_CTRL to improve performance. https://lkml.org/lkml/2020/6/16/1741 v3: 1. Rebase on v5.7-rc1. 2. Remove unused port definition,ex:APU and CCU port in mt6779-larb-port.h. 3. Remove "change single domain to multiple domain" part(from PATCH v2 09/19 to PATCH v2 19/19). 4. Redesign mt6779 basic part (1)Add some register definition and reuse them. (2)Redesign smi larb bus ID to analyze IOMMU translation fault. (3)Only init MM_IOMMU and not use APU_IOMMU. http://lists.infradead.org/pipermail/linux-mediatek/2020-May/029811.html v2: 1. Rebase on v5.5-rc1. 2. Delete M4U_PORT_UNKNOWN define because of not use it. 3. Correct coding format. 4. Rename offset=0x48 register. 5. Split "iommu/mediatek: Add mt6779 IOMMU basic support(patch v1)" to several patches(patch v2). http://lists.infradead.org/pipermail/linux-mediatek/2020-January/026131.html v1: http://lists.infradead.org/pipermail/linux-mediatek/2019-November/024567.html Chao Hao (10): dt-bindings: mediatek: Add bindings for MT6779 iommu/mediatek: Rename the register STANDARD_AXI_MODE(0x48) to MISC_CTRL iommu/mediatek: Use a u32 flags to describe different HW features iommu/mediatek: Setting MISC_CTRL register iommu/mediatek: Move inv_sel_reg into the plat_data iommu/mediatek: Add sub_comm id in translation fault iommu/mediatek: Add REG_MMU_WR_LEN_CTRL register definition iommu/mediatek: Extend protect pa alignment value iommu/mediatek: Modify MMU_CTRL register setting iommu/mediatek: Add mt6779 basic support .../bindings/iommu/mediatek,iommu.txt | 2 + drivers/iommu/mtk_iommu.c | 110 +++++++--- drivers/iommu/mtk_iommu.h | 20 +- include/dt-bindings/memory/mt6779-larb-port.h | 206 ++++++++++++++++++ 4 files changed, 299 insertions(+), 39 deletions(-) -- 2.18.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel