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Thu, 3 Sep 2020 13:59:52 +0000 From: laurentiu.tudor@nxp.com To: u-boot@lists.denx.de, priyanka.jain@nxp.com Cc: zhiqiang.hou@nxp.com, Laurentiu Tudor Subject: [PATCH v4 0/4] Support for specifying extra IOMMU mappings for PCI Date: Thu, 3 Sep 2020 16:59:38 +0300 Message-Id: <20200903135942.28548-1-laurentiu.tudor@nxp.com> X-Mailer: git-send-email 2.17.1 X-ClientProxiedBy: AM0PR10CA0099.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:208:e6::16) To VI1PR0402MB3405.eurprd04.prod.outlook.com (2603:10a6:803:3::26) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from fsr-ub1864-101.ea.freescale.net (83.217.231.2) by AM0PR10CA0099.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:208:e6::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3348.15 via Frontend Transport; Thu, 3 Sep 2020 13:59:51 +0000 X-Mailer: git-send-email 2.17.1 X-Originating-IP: [83.217.231.2] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 146dc9f8-e5e2-4502-e985-08d85011a0fb X-MS-TrafficTypeDiagnostic: VI1PR04MB2973: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:1284; 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Add support for specifying extra IOMMU mappings for PCI controllers through a special env var called "pci_iommu_extra" or through a device tree property named "pci-iommu-extra" placed in the node describing the PCI controller. More detailed information can be found in the final patch. Changes in v4: - rebased - fixed compilation issue on ls1021a based boards Changes in v3: - rebased - trimmed commit message of the last patch - minor adjustments to the readme file Changes in v2: - add ARI support and use it by default - option to disable ARI - fixes in BDF calculation - reorganized code a bit - added more comments Laurentiu Tudor (4): pci: layerscape: move per-pci device fdt fixup in a function pci: layerscape: move pci node search in a common function pci: add a few ARI related defines pci: layerscape: add a way of specifying additional iommu mappings .../fsl-layerscape/doc/README.pci_iommu_extra | 67 +++ drivers/pci/Kconfig | 12 + drivers/pci/pcie_layerscape_fixup.c | 460 +++++++++++++++--- include/pci.h | 6 + 4 files changed, 480 insertions(+), 65 deletions(-) create mode 100644 arch/arm/cpu/armv8/fsl-layerscape/doc/README.pci_iommu_extra