From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E8EF8C282DE for ; Mon, 10 Mar 2025 20:30:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:MIME-Version:Cc:To: In-Reply-To:References:Message-Id:Content-Transfer-Encoding:Content-Type: Subject:Date:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=jkUUith3lCTaKzBGlHcayPTbQSKqnnP97ibVcnry8a8=; b=oztgcvWBwEvN4D4B15nQcaebvn y3pF84iJVjUUjXmJ6hNhg4r2xofHwIpiPtst1DQSyPUA3Ozl6u+hFzN4UPXy7nIXM1QcKtkMxSP0l 1uRMuSvpcUWXPvXTWQclLFWWNA9bbo3cnRvbeSqkVAxMUGcExwaC5Yi/Bo4BfmyXsEgbwjw7OM3/L 2P6boVV4WP207WSoE+AnGMpJgvEsGIHFgM9jaKs080wQ+WQqOyBsAySKQMjIdyZJTfZ7ydWrsgbkD yP5L6jBKDx/ay4Hcbp25ozbNSd0IOG4dz7WRGtO+81A5w3MQbtXH/AKlr2+ba/jWOhnP1kMI79hLd Bg5V2U6w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1trjlF-00000003sik-45vm; Mon, 10 Mar 2025 20:30:05 +0000 Received: from mail-francecentralazlp170130007.outbound.protection.outlook.com ([2a01:111:f403:c20a::7] helo=PA4PR04CU001.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1trjZE-00000003qVL-0dSz for linux-arm-kernel@lists.infradead.org; Mon, 10 Mar 2025 20:17:41 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=OtHktoh+t4TsbNfSF2V9nCm/Slw1qCK6T0wmaglIBIk5/5mCBqvWEx6hm4VRhVLC21qUObCPdpWUxWxbd/aWF+YpADRZW9Y28d9X0jU2tCs1/564B1AyHYLQWxLlgEzdGcbztjw/qZKsHVOa6t6O/8RKkLRDkq1qfHec/UVz7+mOGycWGSbwuzy1ON9ad9gpdMl/hvmJZM+/vYHJmld/5paWPtewnWbhHB1YK3PQ0Wt4Df4kHNSryf6XRKEsuBZ/aFZAT/m/I+DWqXm/QKEXYmPZ8sWVu6hd7RevTn7wZbSicYerGLvlzRJOC5CpPZL1InUgfuLN2r4J3IGxdJh1xw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=jkUUith3lCTaKzBGlHcayPTbQSKqnnP97ibVcnry8a8=; b=DwHSQv/pNePQPg7GrFDSvTURlujaETaHSjj1Oq1lyhyb4djRtnKFGAxoi4haqd5ws31C3lylsVsvh8GTCZbqSwbk3ADq5838ygykJgspwo44TyD7Yuk/MElDzFyy2FuyRNCVdJEvuB5ODlRnmjEeitm7dhgcvCKZrdgV6B7lWugSyfdNhou2BrcN3q6JJMnYTJfHPSVPjE7pjaPaoMMKol9M8SutviYhh4fjsGsreax6aY/kZ4skOMzs4SDwQMZgAZiulOeIChVvmTpg7UzHp//gKWMrppALMShqCtUB7zBQ+ZoxO8+rtt6BEkQLxMO37g0NPDWKNOKZi//Xi4+vrQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none 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:X-MS-Exchange-SenderADCheck; bh=jkUUith3lCTaKzBGlHcayPTbQSKqnnP97ibVcnry8a8=; b=ML5z24e2287iKQS9fh+uYbx839mvYtuhvAqbKMlDQ/2sZckK/YdVK67oqn01j83OjNPZArB5JUq7lS8a1DV2uzq8CMGjF+VjDDXCHE6qDxBll8Y0H1tdobzOP2fuw8St0dvzeWQp02Hk2vs8Ku1qOw2zKk7oBBRSaJpyTMrOoCfEP8iHQc6KKxegLQnxACg0UanPsRMdsUFXF3oNilQ3ltgMlQJ3r9MQIViyZnPwHKj3DbuzwiGVVhiIoX321XHBLRt/F3GTEexokOl1IAs+F5QIfEdOjKroQp8PQ5vAM4+zUIHl6tdfoyfDdpwV/nxijiQoyOUCK9c8+DVDIcRCcw== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from PAXPR04MB9642.eurprd04.prod.outlook.com (2603:10a6:102:240::14) by AS8PR04MB8261.eurprd04.prod.outlook.com (2603:10a6:20b:3b1::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8511.26; Mon, 10 Mar 2025 20:17:38 +0000 Received: from PAXPR04MB9642.eurprd04.prod.outlook.com ([fe80::9126:a61e:341d:4b06]) by PAXPR04MB9642.eurprd04.prod.outlook.com ([fe80::9126:a61e:341d:4b06%3]) with mapi id 15.20.8511.025; Mon, 10 Mar 2025 20:17:38 +0000 From: Frank Li Date: Mon, 10 Mar 2025 16:16:42 -0400 Subject: [PATCH v10 04/10] PCI: dwc: Add helper dw_pcie_init_parent_bus_offset() Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250310-pci_fixup_addr-v10-4-409dafc950d1@nxp.com> References: <20250310-pci_fixup_addr-v10-0-409dafc950d1@nxp.com> In-Reply-To: <20250310-pci_fixup_addr-v10-0-409dafc950d1@nxp.com> To: Rob Herring , Saravana Kannan , Jingoo Han , Manivannan Sadhasivam , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Bjorn Helgaas , Richard Zhu , Lucas Stach , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev, Niklas Cassel , Frank Li X-Mailer: b4 0.13-dev-e586c X-Developer-Signature: v=1; a=ed25519-sha256; t=1741637834; l=4967; i=Frank.Li@nxp.com; s=20240130; h=from:subject:message-id; bh=IPCgPMxURCT5SP4DmpiD1a/kBvD5HOawwcntFnZ2L6w=; b=Q7cI6XnU5mrbda5d67jfiZJ8MOB/6zdDKZOgtpHFx8IF7kOhAJzqcdMy+/3bRxjMGQB5WmLec f3dc+03VlQeBRtvk8LS/HNM9Suy9KMQWepqqjeU+7HeW8hdYFjlVHSZ X-Developer-Key: i=Frank.Li@nxp.com; a=ed25519; pk=I0L1sDUfPxpAkRvPKy7MdauTuSENRq+DnA+G4qcS94Q= X-ClientProxiedBy: BYAPR08CA0058.namprd08.prod.outlook.com (2603:10b6:a03:117::35) To PAXPR04MB9642.eurprd04.prod.outlook.com (2603:10a6:102:240::14) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PAXPR04MB9642:EE_|AS8PR04MB8261:EE_ X-MS-Office365-Filtering-Correlation-Id: 66eca2ab-5f3a-4819-4ff2-08dd60109aac X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|52116014|7416014|366016|1800799024|921020|38350700014; X-Microsoft-Antispam-Message-Info: =?utf-8?B?ckdHa2I1ZWxZQ2NFc2FCQk42N3hxVldsSDVZSUxkNkZEM0JRWm53amVLTDQ5?= =?utf-8?B?WnBGYXg4aFB5NGVjZVk1QkRWb0lVMnlXdHZlbWZTZ0RraUJuMWtVZlhiTU9t?= =?utf-8?B?R2szUFFMekp3MmVrcnpBcUs2bWJBWnUwSFUvK3pybFRhMXYvVnA2WFZPdERq?= =?utf-8?B?L1dvWElpNGtVN1pmOHVyaEo5RENCTUM4enc2UEgyaEZCU2puTmNMSWNQNjdj?= =?utf-8?B?UDZvdXNvZVFoeDVpTUtzenJmQ2V4NGRlRWFtYVM4eFVLeTdUa2EvdUVkWkNL?= =?utf-8?B?WU1SbFg2Mnpaem82aGpQSExaVkZmd29GWkVFck9ONDV3RHlyQTZsU240ZWd3?= =?utf-8?B?Zzg2Ukhhc0Z6R0xGZE9uajM0MW9KdEU0MlJGY0NxcElNUitQMFRkTmhWZEZM?= =?utf-8?B?QVRHc2JYVlpaT01oVU14cm5XNU5PbVNPc1NsODdteXJUelI1dklmMXNkdFIv?= =?utf-8?B?TDdKeGJzRzRvS213TnpDYmk2Sk9uOUJuRWNUelhMNC9rd2s5R0w3TlFlWWww?= =?utf-8?B?aEFESGZjZ0Z2NXNFenNaQzQ3QXd1WFg0WDcvYU9sT1JlYjNSNzFGaEY4djFq?= =?utf-8?B?Z2NJajlVK0M2ZndRUWVMd0NSTDNlcHBTQXhIYmpsWnZBTTFyL05mQll3TjFq?= =?utf-8?B?WTdDdVNEdWVIWmw1Y0NWL3dXbWNhaWNLMWs5R1NmTTJXaUpNcXV0SDhvMXYr?= =?utf-8?B?dk1jT28vRmJnSHZrQ29SOTZuTnhDU0ZKYjNRdHEzdnVrQXZWbzBuWk5wWTMw?= =?utf-8?B?L3E1bmcvKzVpMmhOMXJ2ODFOMnkxM3gyWEs1S3NMTE1iYTg0WFlTa0Y0MDd4?= =?utf-8?B?MVd6eWlydGg5L2VodDZIT0p5QWVDUFBLT1lHdDVRbWZkc2NtM0dLczQzN3N3?= =?utf-8?B?UVl2dnllV1FpVjc1blpJdVBJdXJMbW1rWm4yZlJYc3ZPYXhFSVJiMElyL2p0?= =?utf-8?B?K2R0M3dXUWVYYkR4cElQdGxmZW5jSVVnZlhGVHJQRzBqdnFxeVluRVllWTEv?= =?utf-8?B?RndWVDhoNjU0T2lOSXFkSHhMa1hBbUlSWWtHa1h1eHgyNU1wTFZuU0pyOEVH?= =?utf-8?B?bmpScmF1T3hscTlXRHFaQ0ZOck9WUlBvRVQxVmI4bWQ0MnFPd3RtUWRSTHJG?= =?utf-8?B?MTNJTmZ2YXY3Q0tmckNrV3YrbmJDdGFQUXM3OUMwaVBleitvNGppRy9tbXZV?= =?utf-8?B?UGlvdHhPbkEyQnEvRXhacGlBSGhJRW9iNEh2RWdMZGRXWmpCcDZSVDFleDhE?= =?utf-8?B?TmxwR3JaU0g4TGRqU0ppTEZ6Y2hkOXV4THhxeFpvdnhWT2FNZUE0dzR4ZkpS?= =?utf-8?B?Wm1uL01MY2Z1MjRHdGxKblBMUjFkdmt2V1Zhb0NmZnFqcDAwUHJHbU42OStO?= =?utf-8?B?QUdZUlFJdm9SOW5CZEd2VVAwSXlhWTJtU3BadnlKMWdEbS9XQXpnWkg3MkVX?= =?utf-8?B?eTNIWnFZdEpSZ3FyZGIvR2x5a1VCV2FtdFU3SGhxZVBjcjBtelVIK2RBOFRF?= =?utf-8?B?eWdQVWpkbngvcmRINXV4ZG92QndkSEt5ZEptMjJQWDBLUytEODlnM0I3SHNO?= =?utf-8?B?NlhxdzN6cVpIWEx5MG9FVkNNVDZZbWdiWGVwN2Q4NHVET0hDOEJUeWN1MDhm?= =?utf-8?B?c01SekUycXRwUUMzdHI4TmErT0dSamRyQ2dEaFhaUU5hdlBrZklxNXVkM05n?= =?utf-8?B?WW92VEpoNUNOQXBrZ1dmVXRPZFRwUEhwL0VEUlBJN2RndU0zUS9hWFpFL2hv?= =?utf-8?B?ZnkvNzZqbHNXeHI3VnM1elkxOHJEblNxM1BZTjhlUEVVTVpKVGUxUzExRko5?= =?utf-8?B?REpNQlgxaCtrd251ZnI0ZXBiaDZWY2IzWVZNMUowRFNoVndoMVBJRkZ1Z2Rn?= =?utf-8?B?U2ZXT3ZOWEhqbnJycHkvSGxNeE9WcVVIby8yTndtcnpXR3RNZVFmNXVPaEc0?= =?utf-8?B?Q2xiTk05ZjhGeVVSdGZ4bmNva3RLU2lEbFkyWHpVT1ZXMzlLSUtucHRCY0wv?= =?utf-8?B?NXFmNXhVS3FnPT0=?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PAXPR04MB9642.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(376014)(52116014)(7416014)(366016)(1800799024)(921020)(38350700014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?UUlUUUJWdWN2blNJZW00NHZCQVV0eGoreHBqS2lXeGJMZkZsTUhmRWNFSVdV?= =?utf-8?B?eGo4QWdETnhiV20yUmRpbWx1bjRQeXc2dWZUNi8xMHV5QmpkTXkyQmdobVZz?= =?utf-8?B?TlJBNFZVcWUvdXJVRXVtdjF4YkZJYTF3b1ZxNFU1OHhDeXZ3WDZWc1ZvcWZE?= =?utf-8?B?anJyUGVEeUpKN04yMEEwUFZDQ20vM04rNGt2dzVVWlJGclJaaUhZNmtvSUQz?= =?utf-8?B?azlUMVhVa21iZEh0SnNObW1zN3VGcHBHMEtmMy9RbDBaL0VReGlLN1BkTjR6?= =?utf-8?B?eHk1OUZydzhNN0FoNEdldCtWdFNhcmR1RTV1RklwRFVQU0k1Y2tUa3l6eUM3?= =?utf-8?B?RXVNNkxvUVMrY2U5bEp3eDlPaEpBbnJYNGRBZEd2ZkNwQk1BdFJ1TU8rMExW?= =?utf-8?B?YXlaMkNhYnFsUGlVWUprek05bU13akxZekpXdHhKcisxN2FHdzJXWENQbXlt?= =?utf-8?B?cDZUS05xb25LaUszbWErRWMrcmxuU05UV2FVdC9MTGgySFkzZjFEd0xieVZy?= =?utf-8?B?VXgxTUpSUU5UN1Zxd1hESWJXcGZTMVJ4N1JDTjdKU2RFclpRT3RmQitIZXB5?= =?utf-8?B?S1hCTGw4Y282cDFjSmlVSjlaaWh4Y2ZTamp0VFhoK2d2UURaRVM4eVorTER6?= =?utf-8?B?dWl2d0FXYXNOM1BGTE1XY3NCcTlLd05VOFE3VVJ3NHY4aDF3NU9FdHJZNCtW?= =?utf-8?B?Z2xrRk1YVXRoYlBiVjJjeW8wL3pMemlyNGF1RUFpVmVqQVkrdExhekd0bWhy?= =?utf-8?B?SVh5NFZscFBoeWwzT3NyRmNzYUhBZVJRSkUwZ0FmK1J6Q1NaRGZPSzhldVcx?= =?utf-8?B?em1hWU1rc0JDVlN2M1M4djY1ZnYxbDNxeTNMM3RTYUFzakxCeEdnRngwaW52?= =?utf-8?B?SnNCM1hGcmJncCs3bDFvTFdBM0NkcExGc3orblo1UWJORGs2bEJhZDdvR0RS?= =?utf-8?B?ZmtYTWUwUmpOZHBmYzQ1NXhqMG4rRjdvUU9ZclpsL2JySVcwQ1pRSFVyTjRJ?= =?utf-8?B?Tlh5MzhFNXd2dldGVitWWStzTUNFUkduSEpoMzlOMDVYRjJaSDBKaHFXWlNE?= =?utf-8?B?QytLdEpkaWJNbS8vb3gvWXM4ejBJOWo5WTc1aFR0ZFZXV2NhRTNyK0RUSkNX?= =?utf-8?B?NEZGVnYwakNhbXZtMkx2NzJQQjNVeDZJaThXT0VBclVDdGRkVWphZjIrd3Fs?= =?utf-8?B?ckFiWHlSLy9MMXlEcTJTbDJtU1dUVWxGNU9rdFFqditoQ1R4TDNlK3NvWEt5?= =?utf-8?B?eDFsTFNnVi9hSFFuKzRSMFdwNFVVL1JIdGNJcWc3b0dPZFJFNEhCNWZUcGF5?= =?utf-8?B?bDdXWHlTTUYyMCtLME91eVArclZoRldMTnkwOUNMSXh1RnMzK2pJZkFiUmVQ?= =?utf-8?B?ZWhQUitBV1NBbjRrKzV4aTdBNy9xckh4K3c3SEU4NGpuOWVFcndNOCtMVkJZ?= =?utf-8?B?dzlieG5GOVJ5UzBwaFhLbEFRZ1d1OEp3ZVdmUmliZFRwdFNsbWFRdGh3TDZZ?= =?utf-8?B?OW9oNUtSMGdKOFRpRFlEcmE2cXduUHR1K2R6bmk2RUg5Q2s5OU10MmRaYWcw?= =?utf-8?B?aWw4WkJzVW1TUk1GcThuVlUzcGdQRzloc0NVR0dFL3dRbVpQdnNpK1BTOC9x?= =?utf-8?B?dTlvRVNINzhPdGFSTGMzSGpqVURSMXIrdzE5T2dlZG9va1h2Nnc5TEhqSlIy?= =?utf-8?B?c2FvL1g1b241U0I3YlVWdWc5L1dNL3dvNUpkRXM2SUtJTkxCZSsyYnlTQjdK?= =?utf-8?B?N0Y2QUJFUU5USlo3SzQ2UXk1L3YzRksyc25SZ2lWSGlhWTU4UlVWRnloZXli?= =?utf-8?B?amlCeVhWMXk4WU1ITVZJSU9HSmh5cUFuKzNQL1ZzaE5pRzA4dTdTTlFnN2JB?= =?utf-8?B?Rk9uSWdKQUtYMStPR2pQTXpMME0weHJNcVZQZ1BwRG82N2lFOU9DNnh0NmVj?= =?utf-8?B?dk5UV0lyMlQyK3dGdTFINWdRdnBqUWxjL3hFSTNSa3hYR0dQZnZXUXh1MkdZ?= =?utf-8?B?ZUxTOWNOOHVabWRtQk9SUFZRY29QMnZvZzhITE1vZ0tFbzliaVVPeVJ5MWs2?= =?utf-8?B?clhMOVZwQU0xdkVsT2Y3WU8veGUzTnZFK29wWHAzVW9SVU1FNG55Yzd5S3NG?= =?utf-8?Q?IaZI=3D?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 66eca2ab-5f3a-4819-4ff2-08dd60109aac X-MS-Exchange-CrossTenant-AuthSource: PAXPR04MB9642.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Mar 2025 20:17:38.8107 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: AZ/Jv6hNweJW2gtP2Tk0XjVvMjWRLCQJnQdrb5cDMvY6B2ZZ7iDLwUi5T6aE6+TeXDHmnTwA/KtAPWCDvBksRg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR04MB8261 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250310_131740_210135_78166144 X-CRM114-Status: GOOD ( 20.61 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Bjorn Helgaas Set pci->parent_bus_offset based on the parent bus address from the "config" (Root complex mode) and "addr_space" (Endpoint mode). .cpu_addr_fixup(cpu_phy_addr). (if implemented) should return the parent bus address corresponding according to cpu_phy_addr. Sets pp->parent_bus_offset, but doesn't use it, so no functional change intended yet. Add use_parent_dt_ranges to detect some fake bus translation at platform, which have not .cpu_addr_fixup(). Set use_parent_dt_ranges true explicitly at platform that have .cpu_addr_fixup() and fixed DTB's range. If not one report "fake bus translation" for sometime, this flags can be removed safely. Signed-off-by: Bjorn Helgaas Signed-off-by: Frank Li --- change from v9 to v10 v9: https://lore.kernel.org/imx/20250128-pci_fixup_addr-v9-4-3c4bb506f665@nxp.com/ - use help funtion dw_pcie_init_parent_bus_offset() because both EP and RC use simular logic. - still use use_parent_dt_ranges to detect fake bus translation for no .cpu_addr_fixup()'s platfrom incase block exist platform. --- drivers/pci/controller/dwc/pcie-designware.c | 47 ++++++++++++++++++++++++++++ drivers/pci/controller/dwc/pcie-designware.h | 13 ++++++++ 2 files changed, 60 insertions(+) diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c index 9d0a5f75effcc..70b4d3369158a 100644 --- a/drivers/pci/controller/dwc/pcie-designware.c +++ b/drivers/pci/controller/dwc/pcie-designware.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -1105,3 +1106,49 @@ void dw_pcie_setup(struct dw_pcie *pci) dw_pcie_link_set_max_link_width(pci, pci->num_lanes); } + +int dw_pcie_init_parent_bus_offset(struct dw_pcie *pci, const char *reg_name, + resource_size_t cpu_phy_addr) +{ + struct device *dev = pci->dev; + struct device_node *np = dev->of_node; + u64 (*fixup)(struct dw_pcie *pcie, u64 cpu_addr); + u64 reg_addr, fixup_addr; + int index; + + /* Look up reg_name address on parent bus */ + index = of_property_match_string(np, "reg-names", reg_name); + + if (index < 0) { + dev_err(dev, "Missed reg-name: %s, Broken DTB file\n", reg_name); + return -EINVAL; + } + + of_property_read_reg(np, index, ®_addr, NULL); + + fixup = pci->ops->cpu_addr_fixup; + if (fixup) { + fixup_addr = fixup(pci, cpu_phy_addr); + if (reg_addr == fixup_addr) { + dev_info(dev, "%#010llx %s reg[%d] == %#010llx; %ps is redundant\n", + cpu_phy_addr, reg_name, index, + fixup_addr, fixup); + } else { + dev_warn_once(dev, "%#010llx %s reg[%d] != %#010llx fixed up addr; DT is broken\n", + cpu_phy_addr, reg_name, + index, fixup_addr); + reg_addr = fixup_addr; + } + } else if (!pci->use_parent_dt_ranges) { + if (reg_addr != cpu_phy_addr) { + dev_warn_once(dev, "Your DTB try to use fake translation, Please check parent's ranges property,"); + return 0; + } + } + + pci->parent_bus_offset = cpu_phy_addr - reg_addr; + dev_info(dev, "%s parent bus offset is %#010llx\n", + reg_name, pci->parent_bus_offset); + + return 0; +} diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index d0d8c622a6e8b..5f941eab57110 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -445,6 +445,7 @@ struct dw_pcie { void __iomem *atu_base; resource_size_t atu_phys_addr; size_t atu_size; + resource_size_t parent_bus_offset; u32 num_ib_windows; u32 num_ob_windows; u32 region_align; @@ -465,6 +466,16 @@ struct dw_pcie { struct reset_control_bulk_data core_rsts[DW_PCIE_NUM_CORE_RSTS]; struct gpio_desc *pe_rst; bool suspended; + /* + * This flag indicates that the vendor driver uses devicetree 'ranges' + * property to allow iATU to use the Intermediate Address (IA) for + * outbound mapping. Using this flag also avoids the usage of + * 'cpu_addr_fixup' callback implementation in the driver. + * + * If use_parent_dt_ranges is false, warning will print if IA is not + * equal to cpu physical address. Indicate dtb use a fake translation. + */ + bool use_parent_dt_ranges; }; #define to_dw_pcie_from_pp(port) container_of((port), struct dw_pcie, pp) @@ -500,6 +511,8 @@ void dw_pcie_setup(struct dw_pcie *pci); void dw_pcie_iatu_detect(struct dw_pcie *pci); int dw_pcie_edma_detect(struct dw_pcie *pci); void dw_pcie_edma_remove(struct dw_pcie *pci); +int dw_pcie_init_parent_bus_offset(struct dw_pcie *pci, const char *reg_name, + resource_size_t cpu_phy_addr); static inline void dw_pcie_writel_dbi(struct dw_pcie *pci, u32 reg, u32 val) { -- 2.34.1