From patchwork Mon Mar 5 14:29:21 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nipun Gupta X-Patchwork-Id: 881668 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3zwBMz5sX6z9sgL for ; Tue, 6 Mar 2018 07:29:35 +1100 (AEDT) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.b="nrfTWMmF"; dkim-atps=neutral Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 3zwBMz4H0bzF0XS for ; Tue, 6 Mar 2018 07:29:35 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.b="nrfTWMmF"; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nxp.com (client-ip=40.107.0.51; helo=eur02-am5-obe.outbound.protection.outlook.com; envelope-from=nipun.gupta@nxp.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.b="nrfTWMmF"; dkim-atps=neutral Received: from EUR02-AM5-obe.outbound.protection.outlook.com (mail-eopbgr00051.outbound.protection.outlook.com [40.107.0.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3zw2PZ6mtkzF0jr for ; Tue, 6 Mar 2018 01:30:20 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=P4DHSm7cbQ4anaEqY5I6fGjf3qmkiJRqTDPGrTjYMoA=; b=nrfTWMmF9PcJcFmgNc92AX2O2T7/Or1thI9bcR5udIYueF/CTcAy4CqsS+Cy3IJrLWZME264wiarwoF6L1v7cyksflND6YDRXGy+JQPHufctnFljIaUO5s3KgdN+IxA5D+eKFRfg2HBTud58S85jTKUc9Q94aFW3xUZEVTHB730= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=nipun.gupta@nxp.com; Received: from b27504-OptiPlex-790.ap.freescale.net (14.142.187.166) by HE1PR0401MB2425.eurprd04.prod.outlook.com (2603:10a6:3:25::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.548.13; Mon, 5 Mar 2018 14:30:03 +0000 From: Nipun Gupta To: will.deacon@arm.com, robin.murphy@arm.com, mark.rutland@arm.com, catalin.marinas@arm.com Subject: [PATCH 1/6] Docs: dt: add fsl-mc iommu-parent device-tree binding Date: Mon, 5 Mar 2018 19:59:21 +0530 Message-Id: <1520260166-29387-2-git-send-email-nipun.gupta@nxp.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1520260166-29387-1-git-send-email-nipun.gupta@nxp.com> References: <1520260166-29387-1-git-send-email-nipun.gupta@nxp.com> MIME-Version: 1.0 X-Originating-IP: [14.142.187.166] X-ClientProxiedBy: BM1PR0101CA0060.INDPRD01.PROD.OUTLOOK.COM (2603:1096:b00:19::22) To HE1PR0401MB2425.eurprd04.prod.outlook.com (2603:10a6:3:25::22) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 6086fb77-287e-42aa-1afc-08d582a597e7 X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:(7020095)(4652020)(4534165)(7168020)(4627221)(201703031133081)(201702281549075)(48565401081)(5600026)(4604075)(2017052603307)(7153060)(7193020); SRVR:HE1PR0401MB2425; X-Microsoft-Exchange-Diagnostics: 1; HE1PR0401MB2425; 3:XMv7mRQVrDbJ3Slrgo/joYY+itBohiXUS51l6w7tbR/eCAkeoFTrwmwwiFYOkEd/2hpAXuXt62ylrwARCCetvRsnNa+XYhgWY/+Twp688Z1o3kLaEuFPHDWO/jHkk9cp7R2lZmpEtK4zFyeIhqHGjFyABp4oZX8h9Vl+2XZRoNHzyefR5RdhxJUw+8O9WEauUGozRXwTOE29/UEeY86Tmykwi5fowFeZi75+IO8CnhecIvhIyNL5gPyTzWhr+JV6; 25:bwiui9odmVc/Z2BllCWj+cYdmtCDx3S2avHgEKVB0NMPTCpIp5qg15Nt5zjhqWyG8xChevvdSzUbDU6KRRMc5AZEXEVApKR7ZSGYVZ7QbI+qcoq1o95em39Dxap71P0iBABPFLT1LxpF0e3Uiq+5Za5qdldOiUMD7SDEcf/SwqvuTEfnuwQ4OQsFl3JSwGSGZIOhESsP2nmrmoTzTFSnBcJOf3IfqaCU0vZuGKQ48OyfRxkbxviJVwhymNw7MN0qJiBQnfJqZV4Z7WkD7OT1yNJkc2G97Pb9JU55GqVWbhKUKeTr+ncAfKKnbwBS5QLSSpH+QcGwNIrgxzCOpoEPvg==; 31:C+alJF1/UviTaUVhOnHayp2hssKhC7wny7jShgQd/9Q99++MsasvS0sX8+rHkgOONe/Phk8srIONM8taR0r2jT3Rsro8AIdGLm1T/PyYbcy9d94XN6ZA8WhDwhrPldu5S/QCV8QxP4/Dcwi+ev3L5qS6DOHEK/AFZfoldgh/AZAl2DQy4/eAxYNgXDc0RDNJH1IKplGjCFF9ZGyioN3p4fGFFvYK9cMrX9a9ziq6sdU= X-MS-TrafficTypeDiagnostic: HE1PR0401MB2425: X-Microsoft-Exchange-Diagnostics: 1; HE1PR0401MB2425; 20: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; 4:lTN6RvKLGUoqxh00OUSAP5f1KKtV3ENnaUpgPja7ZNb7pB4POPmuTUAwzdwZmLXzFJ0/Z5kxgs2MPERb+RVS737w0FeAoRkOTKJRwNKvyCq7X0TbqauKdZOds8FNpSnV4l96la8GTQdW8wKpX1TYK5R0E0cN4/38n8f5+1EG+96RQlAxoAKjh5f0YBXPYX4cp8Ealv2BAS4MmZDHU+H1JWMT/a95VgJtddFfLlrAuxTJk3dt8yFzQ0lkCejxFio/GWrGRfH8GizVwg3qSCr2l5LN0ztlhGCSdnoyTGYMvkAc8QrchMKDYHi/PH/exBjIT8/QS1BA79MIlbdmV91yiBO0027qwQuCpRfRLX1PU0o= X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:(185117386973197)(275809806118684); X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(8211001083)(6040501)(2401047)(8121501046)(5005006)(10201501046)(3231220)(944501244)(52105095)(3002001)(93006095)(93001095)(6055026)(6041288)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123560045)(20161123562045)(20161123558120)(20161123564045)(6072148)(201708071742011); SRVR:HE1PR0401MB2425; BCL:0; PCL:0; RULEID:; SRVR:HE1PR0401MB2425; X-Forefront-PRVS: 06022AA85F X-Forefront-Antispam-Report: SFV:NSPM; SFS:(10009020)(396003)(346002)(366004)(39860400002)(376002)(39380400002)(189003)(199004)(2906002)(47776003)(106356001)(6486002)(3846002)(4326008)(316002)(39060400002)(25786009)(5660300001)(6116002)(6512007)(53936002)(2950100002)(6666003)(97736004)(8676002)(81166006)(50226002)(76176011)(8936002)(81156014)(5009440100003)(386003)(51416003)(6506007)(26005)(16586007)(48376002)(52116002)(478600001)(86362001)(50466002)(66066001)(7416002)(16526019)(36756003)(55236004)(186003)(7736002)(305945005)(105586002)(68736007)(575784001)(110426004); DIR:OUT; SFP:1101; SCL:1; SRVR:HE1PR0401MB2425; H:b27504-OptiPlex-790.ap.freescale.net; FPR:; SPF:None; PTR:InfoNoRecords; MX:1; A:1; LANG:en; Received-SPF: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) X-Microsoft-Exchange-Diagnostics: =?us-ascii?Q?1; HE1PR0401MB2425; 23:WNp6Vsfq0eYvOJJswtCFCPuTERgouV53lwnX7dA?= 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 X-Microsoft-Antispam-Message-Info: I3ylzAmt7diWcDaqFYVFxFTu5AP/Ax6C0aVEvPr62IyQ2aBwcOdIwmxCs4TfAt7nTk0MfXcvUMm+DdJ+4llstrhSxlIBehN4gF/1mEkh7ivlPC+9jy2YFfOIa1i5eAitqKZjoe0vM5Ovi8ZOLaZoRJmbw/J8e26CkX+bdQwG8moHFLTF47riZZBBxJcUIL+n X-Microsoft-Exchange-Diagnostics: 1; HE1PR0401MB2425; 6:9KSF3Y7PTGUGiESPj24ma3zo8k7LPj/GaktgdO6IXaxsJpA1u4esj5gUlh8M232P6ftiJI+N/ehvTa1tLcrDar/zVkMCXiXK0+7WHZE7uaT/OvdJCENsm8VkYRcsbE7YQVJmsRMEIGeFrXzZkktamYSkvvHal+SY+/sjbLi3En3kbeIPzSie1kDuvMugPfJD3vG9M1MGPz93LNhXiAcQhDh7bgKbLD4yd9VS/PvfMkq9JSlyPiFqroetidZqtjZ6MkUKHzsv1uIQ3xR0EYZy/aRkLLzHm+3zplmJ6RNSlkec8y6Ikgm3Opf6iTDta1Z0TxQvmyZucBlP/wNmxOJpz6jhBI70UnoNhXolfXZRn+I=; 5:kWhjE0SPkuSRDBJrgLDx0/Ek8nbkc6UGhURBxeoC2Tm6tyeJK9/AW5moLJmOp+R1ELNltz/Mt6EFgk4plhaJxs12xU+G0M4x+6gzl/TxBzYfjtwXNeJOUG05yS2BTDkXt0Dhb9UqlmARe9UerMNTvAX8EluBX+j40FW3/lW/XEc=; 24:U3saFlroMdp5gQ5EWwuuWZKEo2hxDPDwkvZh9ORqcYbfFTPpJi9u0IvP89srIKpdI+1N+m5FRYb3bHgmm849Xuk4+j5Y9x2z+m9baOUWajE=; 7:d2uESrdU0B0OylJPCLrtgnPgQiacjMa4iFbvQyU/sYCa9eeX5epA2Wc/DIpKMIy53f2BmAaUE7xzFP5b4/8kYCQNdCIPNGHkLydaS18USDXSNCnWorxNriU9c4qWBnIdVoEF0zee7NjfFlj19D/7zargIG82x/RZNzgNQEfvIEl/3J2L1NpUDeVg6bDgtwuQQWjN0ANWqa/l76wm0Cj9qxVuFG0Ju+ZerP+uFSyNOE6qKsN28DgYHat/qWV8cc4T SpamDiagnosticOutput: 1:99 SpamDiagnosticMetadata: NSPM X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Mar 2018 14:30:03.5950 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 6086fb77-287e-42aa-1afc-08d582a597e7 X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: HE1PR0401MB2425 X-Mailman-Approved-At: Tue, 06 Mar 2018 07:27:22 +1100 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, stuyoder@gmail.com, bharat.bhushan@nxp.com, gregkh@linuxfoundation.org, joro@8bytes.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, leoyang.li@nxp.com, iommu@lists.linux-foundation.org, robh+dt@kernel.org, Nipun Gupta , laurentiu.tudor@nxp.com, shawnguo@kernel.org, hch@lst.de, linux-arm-kernel@lists.infradead.org, m.szyprowski@samsung.com Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" The existing IOMMU bindings cannot be used to specify the relationship between fsl-mc devices and IOMMUs. This patch adds a binding for mapping fsl-mc devices to IOMMUs, using a new iommu-parent property. Signed-off-by: Nipun Gupta --- .../devicetree/bindings/misc/fsl,qoriq-mc.txt | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt b/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt index 6611a7c..011c7d6 100644 --- a/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt +++ b/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt @@ -9,6 +9,24 @@ blocks that can be used to create functional hardware objects/devices such as network interfaces, crypto accelerator instances, L2 switches, etc. +For an overview of the DPAA2 architecture and fsl-mc bus see: +drivers/staging/fsl-mc/README.txt + +As described in the above overview, all DPAA2 objects in a DPRC share the +same hardware "isolation context" and a 10-bit value called an ICID +(isolation context id) is expressed by the hardware to identify +the requester. + +The generic 'iommus' property is cannot be used to describe the relationship +between fsl-mc and IOMMUs, so an iommu-parent property is used to define +the same. + +For generic IOMMU bindings, see +Documentation/devicetree/bindings/iommu/iommu.txt. + +For arm-smmu binding, see: +Documentation/devicetree/bindings/iommu/arm,smmu.txt. + Required properties: - compatible @@ -88,14 +106,27 @@ Sub-nodes: Value type: Definition: Specifies the phandle to the PHY device node associated with the this dpmac. +Optional properties: + +- iommu-parent: Maps the devices on fsl-mc bus to an IOMMU. + The property specifies the IOMMU behind which the devices on + fsl-mc bus are residing. Example: + smmu: iommu@5000000 { + compatible = "arm,mmu-500"; + #iommu-cells = <1>; + stream-match-mask = <0x7C00>; + ... + }; + fsl_mc: fsl-mc@80c000000 { compatible = "fsl,qoriq-mc"; reg = <0x00000008 0x0c000000 0 0x40>, /* MC portal base */ <0x00000000 0x08340000 0 0x40000>; /* MC control reg */ msi-parent = <&its>; + iommu-parent = <&smmu>; #address-cells = <3>; #size-cells = <1>;