From nobody Tue Feb 10 06:25:36 2026 Received: from TY3P286CU002.outbound.protection.outlook.com (mail-japaneastazon11020135.outbound.protection.outlook.com [52.101.229.135]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9F1D42F6187; Tue, 13 Jan 2026 16:27:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.229.135 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768321660; cv=fail; b=STqWfKDDgtl4ECU4Gv9YnD97iX0frHY1lNjnTviHkgp5l8IeuaHEye6mDdlpDXGJnALkaL6ZlTRDObX0bXuxF9rzXwFZx1atCm2g3okDWe6gxJWuy74Ipfh71pDwWa/5lMjSsS8I0t7zofCVkklNiUVhmqY2yUh2aaSV+uBpZyQ= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768321660; c=relaxed/simple; bh=AelXZ91HkeXfOuVZ84x63J3FkMUCtbVdw9AOd/jS4VI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=QYj3J3mabCfm7gnlY7cLbr11UHLyehIZgyHVNNCtRY3JjtxC/7M/Ih4lKe3/fqp4dpL6tcOTFv7TO+8Pl3b6b5QOG2tga7CfJZXy35O+/OlFtcK9iqipNBV3Sza/0cnb6dCNLcQY0ekUZz84YHKNDfmjxHwOfM/PRCtPgT585dk= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=valinux.co.jp; spf=pass smtp.mailfrom=valinux.co.jp; dkim=pass (1024-bit key) header.d=valinux.co.jp header.i=@valinux.co.jp header.b=dzqY1ptB; arc=fail smtp.client-ip=52.101.229.135 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=valinux.co.jp Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=valinux.co.jp Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=valinux.co.jp header.i=@valinux.co.jp header.b="dzqY1ptB" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=kwdggBV7zAmi7MglRGXh0KcmMs7tHYRXHoxq4zllybD/4ZIJiD1jFz/SjBNCAL2dBQl0Xvh0iwJJ5r65ovFNLIIju5VRLWdR5PtRqJH4adYX+mHTt8I+hYs49ciYjTvD7H5qA2GQglLKfaeP5gh7WKzpD86l8O+Kd3JEsR903/d3Dn+mYvynP4V1Vt7yrfcb3SD1QRBSXUHn9SDgFvbfGy1KH888L/WSpupODJhIIlQ3091JPQbG5pIg6PKxSZuHooVkRBVQgsPv6oxE+Bcv8/FH3q9RXZL8QLn5nzQ4geo2q7Issb5JQhPQgiEzoST7fB4XQGBD/TJtfCV89hTZjw== 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=c1vYwFlaFbg02i+yPgaDCU6Hr8JAesl2qe7CExleuoY=; b=IMMJmjYuvTYCGBJfCdTisZLTt5rATd7Dve8bsw4LMbNp1ba5rhALbUnJOXrEmRzQH1LDnF+0VFC7h1S07qeufIHyiCJs4d/18ppdgS06/j4oRZWw5guLuUp1m+BGdINsobG8rZThekj7GC1iev3Y2DS9S0ZvYFFLysRRVM5dRocN34F70VQg/4lcxPHQWkSyuhEr61RtxThHUdvWvIsnoTkMOD0eaoyN+6IL+0RT55QhPSAK6fEJ/Xp1KceL6I0Z1Y4RfCyrWr1n+OYcvMJgqXQB1M/Gbqtq8e77VkVmfalAoeSyc/ApGNnw2EOeyH0hJEQKAnaop6St0TZC1Mfb1A== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=valinux.co.jp; dmarc=pass action=none header.from=valinux.co.jp; dkim=pass header.d=valinux.co.jp; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=valinux.co.jp; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=c1vYwFlaFbg02i+yPgaDCU6Hr8JAesl2qe7CExleuoY=; b=dzqY1ptBPpAk3JWYuL0IQNIUs/XCF5jkHp74ZrBP3rs3ESzDiklAzY7mdadWeeNXo8j+tW1S2xpWS8NQLmgAqwNrJAq/uaQbtZPgtHD4Vt3chrmLbTUixvGBhSE23Sg4KwK2LFfaQVzQ+tHgYI+7NF6YrgznIFIsdj54lNxDKGE= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=valinux.co.jp; Received: from TY7P286MB7722.JPNP286.PROD.OUTLOOK.COM (2603:1096:405:38f::10) by TYWP286MB3400.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:2dd::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9520.5; Tue, 13 Jan 2026 16:27:28 +0000 Received: from TY7P286MB7722.JPNP286.PROD.OUTLOOK.COM ([fe80::2305:327c:28ec:9b32]) by TY7P286MB7722.JPNP286.PROD.OUTLOOK.COM ([fe80::2305:327c:28ec:9b32%5]) with mapi id 15.20.9499.005; Tue, 13 Jan 2026 16:27:28 +0000 From: Koichiro Den To: jingoohan1@gmail.com, mani@kernel.org, lpieralisi@kernel.org, kwilczynski@kernel.org, robh@kernel.org, bhelgaas@google.com, cassel@kernel.org Cc: vigneshr@ti.com, s-vadapalli@ti.com, hongxing.zhu@nxp.com, l.stach@pengutronix.de, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, minghuan.Lian@nxp.com, mingkai.hu@nxp.com, roy.zang@nxp.com, jesper.nilsson@axis.com, heiko@sntech.de, srikanth.thokala@intel.com, marek.vasut+renesas@gmail.com, yoshihiro.shimoda.uh@renesas.com, geert+renesas@glider.be, magnus.damm@gmail.com, christian.bruel@foss.st.com, mcoquelin.stm32@gmail.com, alexandre.torgue@foss.st.com, thierry.reding@gmail.com, jonathanh@nvidia.com, hayashi.kunihiko@socionext.com, mhiramat@kernel.org, kishon@kernel.org, jirislaby@kernel.org, rongqianfeng@vivo.com, 18255117159@163.com, shawn.lin@rock-chips.com, nicolas.frattaroli@collabora.com, linux.amoon@gmail.com, vidyas@nvidia.com, Frank.Li@nxp.com, linux-omap@vger.kernel.org, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@axis.com, linux-rockchip@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-tegra@vger.kernel.org Subject: [PATCH v7 4/6] PCI: dwc: Advertise dynamic inbound mapping support Date: Wed, 14 Jan 2026 01:27:17 +0900 Message-ID: <20260113162719.3710268-5-den@valinux.co.jp> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260113162719.3710268-1-den@valinux.co.jp> References: <20260113162719.3710268-1-den@valinux.co.jp> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: TY4P286CA0012.JPNP286.PROD.OUTLOOK.COM (2603:1096:405:26d::10) To TY7P286MB7722.JPNP286.PROD.OUTLOOK.COM (2603:1096:405:38f::10) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: TY7P286MB7722:EE_|TYWP286MB3400:EE_ X-MS-Office365-Filtering-Correlation-Id: 6fa477e8-77e8-4878-ad86-08de52c0a499 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|1800799024|366016|10070799003; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?nDdqwioUU/sD1KQf82EUeePi2W4lro/eMf1JTACkm09I0snO9C5Vp38LoFjo?= =?us-ascii?Q?f/X5EWTenHGn2I7Dq3hZZEY5IAe6UntS/Ic35wthGM8/vYFwfVdcVPfRIKKZ?= =?us-ascii?Q?mS+SzAa9O1BSQ9Riftpzo4JWIkwuFSbBnerdxaKip+0gfUbrh816k43LmceT?= =?us-ascii?Q?RiU+Kc9JMry23fHkDSGAib62TyfV6A48zV7ZQ+WXAP1EoCYITs0yKydLtEOF?= =?us-ascii?Q?DvtTyizdwegIH+jkoO6rTO0nRkQw3zvlhsk+TmDB9Da2pl84yYNfvqD2AkfA?= =?us-ascii?Q?bj9Fk5o5L+Sj4hRS9zGFqhgbkzB7p4i3LIBcSZl6Kjl+V8zLJ1aZ3FR1rgcL?= =?us-ascii?Q?03+o8NxBQQmMfh6uILveKh8gz+3087acXkvfeIhWvPSyVrS6BgmpxWJTCLpR?= =?us-ascii?Q?ZUAb8i680LcAW2Nv3dsp2PN0jy0FozTFFJ9Vwujy6ZwxgO626LpDAH0HbL6Y?= =?us-ascii?Q?saXJ1o8wttt4klqhxsmqZqgZ2HjPbZ78J05ySJCwOiz2ZJ5CdIK00cXhauT7?= =?us-ascii?Q?u82MhvOuLTY88YhZYcnobqJBhz6QBhnAw/NqMaFuiPMTHEGME0CFLGt8F6Ep?= =?us-ascii?Q?HoCxOaXynP3fq7WltsRNsKJau2AXICAA9wO7OEUWExb1Lc/g7r6Pbz2WFTla?= =?us-ascii?Q?okK+2vOmiuPaKE6O/5f3s8aWqkh+6qtW9gKlbMz9l9Zae999QDC57mpoKFVY?= =?us-ascii?Q?gOG6T+749F44JcWkPdM5vVRckILNBDkZYdVCdTs/TWT/2w45XI4RF+7X2QR1?= =?us-ascii?Q?MQrrjrlg5hI5wdsBqbi6WXh6MGoegTROXM0HuUY4jzUcyUEn8nDj7QhBXzdw?= =?us-ascii?Q?I+Yl7YcoMP8DUcc2J0rMVIVPi5EsFmFQgOAANsjL8rgzUB/AJNN8cpRxdDro?= =?us-ascii?Q?JfTO8CKq3maMxKxY+hBiQL7vcBPCsms5QpyMOdhPnKTLdqt2qtSgQRmIluZY?= =?us-ascii?Q?A2dgTZnca6HBHz5xqLWhVtb0tdMUlDrexaHup9uY7kxk+4zIKNWbIEa8RugQ?= =?us-ascii?Q?HGRj4EyXinsNR3fOtDPxljIz6yUwdgK4jti+R3JezDigHES2H+dlDPqbptbW?= =?us-ascii?Q?YE1+zqWbL4gIHiBCPk37TY7kaeIX8F8rR8Vm3sWszSoxtUQr72w4gZNm1GGz?= =?us-ascii?Q?Io9NjcdzSSm++t/+iyu9o9XOaLEQ2An1lbveP7zRQWdDb+DN8zs90XGjn4Ca?= =?us-ascii?Q?eQI/98ZpghcEmQ7TdOqXtD+Un1JbcTzd4lyMJDspYxEF+nre6/PPgR4mnUME?= =?us-ascii?Q?fUd7bA2amoJIKLMBx5SNtAtOMuXYoi2cmbBgQ+PnuraVNlR5CKyMeQdUohj2?= =?us-ascii?Q?zi0OOsh6Vnav/ST631G71jR88ZKFj4lmhC5JNQN/KKVVVm/31fopm00LneIR?= =?us-ascii?Q?s7d2oP3XykNGt4gvuGkIR/Q7k1c8YeOxXn9F462I4mgvy/oAJEOJKot1ImuH?= =?us-ascii?Q?Az/SPuMNkfhxswI9pXHZUw3EKfZgSeP1?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:TY7P286MB7722.JPNP286.PROD.OUTLOOK.COM;PTR:;CAT:NONE;SFS:(13230040)(376014)(7416014)(1800799024)(366016)(10070799003);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?EK3lwgWJA2HyTF/MSuxkDzUvwfcQrBvlH3vqn64lp9lx881ZCl5jgviYmyX1?= =?us-ascii?Q?Rr2mkupINbxx2EEpsYK0S1XBczRXva4tFwMnTUfcOqr0pt1+jOJeih69nZUY?= =?us-ascii?Q?02Ydov8Jn/2kDe2YMOOqM5I/2vJoTRh4K1bdL2IrXYvcyep9XAPRKS8hZ1hN?= =?us-ascii?Q?WuEwgXvfE6tyn1wzq1Q/WqduXAE/srBEqNhb0ixRel7C9NJWWH/S5yz0rvYP?= =?us-ascii?Q?4DD4sUedPcNezAH1Z/Y3xyeFhE5LU8RWas+pYprkRQ8GxpGw46UCJDLXTDqh?= =?us-ascii?Q?bhebBQ/SajhJgtpFfcwsPVA/Ts7Y36gbHKzoItHC6fhV7CWCw5PJwJrCt5K2?= =?us-ascii?Q?Ldjf3NcBZSyRqDi85pv6qGHMzON5o79cG9hVR5t4TBrKxWq7ZXVrDbmhjLQv?= =?us-ascii?Q?dKVbojyrBHCeqsIiltkDGsei5QP1qyiQunv/Jn4EfTaUg5UBnx//A3mToJxG?= =?us-ascii?Q?7pI7FGfQht41y9cCugsQ3dREnB9WRNhu0jzEB7F0DyEOY1fr2jDeQb3k0ESs?= =?us-ascii?Q?Xi76phE8M9zZANsT7Mk36TH4zZOQeAzW4EGSwuCfrULtV/DEUNLf4tSIGP5t?= =?us-ascii?Q?oMsDeUQvlMepPUB/pnmrWg8hI5cx2o2KRMFo/ZRwI0Q8zlnhwpqdXkukiPJ3?= =?us-ascii?Q?281OUDkML8Reo64oGnpHFTCswEUJroyubD4Ir7QtRI3HfPGQrY50hioBYrH9?= =?us-ascii?Q?x9FoGuJhX17htKtDfpmnW1fE5i44j8W06dbqh1xfwDcf2ggmPzLTHia/stSM?= =?us-ascii?Q?wflfPBuCtHP2r7nlYFEPTeyJmd3nq36PkB3lIyShRRx9z3Xu5q10JOk1cLqD?= =?us-ascii?Q?Kgd4S4QIYYfHjUNXU1Aj6rcUVQGdCIZQemE7DX0IXybsjy03+O14Z6spzXm6?= =?us-ascii?Q?0x6qSib/S/K/XMXS4ApDytuFgUADxlVNMJ8QdT2up5XEFsoi8E97UsNCuWdT?= =?us-ascii?Q?6bG3n4aXS5xwoc8cg8g7v9UzFGebngXEzzjBYIdur16jMoTQWrEK3K0aCdxy?= =?us-ascii?Q?VteyhAjs+4MpnlubmnHYDjKFTo8+pTNGNBzwTOpeHPvO569TohzJKwGzWBVf?= =?us-ascii?Q?tFG5QmlnX60/wD4JaqzDevv8cGEAFHhQwrXMkyruQhWp0SI9jLfPUD+guuK3?= =?us-ascii?Q?Rqb/vKuoqAQRrbCfj/zvu7TQMsQ5uzpdtORXeygaB4r42skCmsYv+DrLvoxD?= =?us-ascii?Q?WCGBxdq9oaghK4zifUXEB/oBMLj5aryiXaftJdYouAByUtYYFQcNSUZ0eAL3?= =?us-ascii?Q?xYprdIIxPHRfW9RsoTapJ5L1ZBl8qT/N3iSbyxDAq13mZd5ZM+i/POoJuGDj?= =?us-ascii?Q?gfWmWf8WvGrJYwFQWF3nV4GKxawOBofJLcKfbYwYy5nAb1MhuyI6MJlKX/co?= =?us-ascii?Q?klJSZpDM2nK1GcfR84YrdUQZSGfR3MvAPN1kqUpEPJe0yXnWJOtDLtKo7+VU?= =?us-ascii?Q?1Zfj7HQLj0PvdT2A5HmGqhmEyXu9VU1mWd/WnsdAU8bdGZrC13uTT0epZLpB?= =?us-ascii?Q?PU74x9WgeIAOTJT4j8o+Vv1zFV/oNNLmdEepQGSnQ5Bi1wVyT/XOvj0gdZIN?= =?us-ascii?Q?eiyw7G85wf7hQb6YbRa+/ulV0VSQgKAzoizYPd+gw0fwqCaemydqn/Wbk/UO?= =?us-ascii?Q?/OLMaMwZ7y4sMQvCiXBGF0EqTYi9IxnOrd+pqsHhmw2LVAPQvTWkt5rsrroq?= =?us-ascii?Q?WLogpsYFlP5F8hcRoEgwCMCz1zw7hqhSJawrZaJ9RKys/HLFGAjsraj9dUwa?= =?us-ascii?Q?JhnHyKctkAU4sTT4Xw7ax7LBQE1HaBaqc2pQdX+ZYV+nluFTuqzV?= X-OriginatorOrg: valinux.co.jp X-MS-Exchange-CrossTenant-Network-Message-Id: 6fa477e8-77e8-4878-ad86-08de52c0a499 X-MS-Exchange-CrossTenant-AuthSource: TY7P286MB7722.JPNP286.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Jan 2026 16:27:28.2497 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 7a57bee8-f73d-4c5f-a4f7-d72c91c8c111 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: Ir7vUozTSVtKXa6I6UWRyt8Q0JSMROfjm/8DqqkSbaMYdaB2E43jGAhqdevJ077iN2LfOiVef1isM95qmtKMqw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: TYWP286MB3400 Content-Type: text/plain; charset="utf-8" The DesignWare EP core has supported updating the inbound iATU mapping for an already configured BAR (i.e. allowing pci_epc_set_bar() to be called again without a prior pci_epc_clear_bar()) since commit 4284c88fff0e ("PCI: designware-ep: Allow pci_epc_set_bar() update inbound map address"). Now that the EPC layer exposes this capability via the dynamic_inbound_mapping feature bit, set the bit centrally in the DesignWare EP layer so that all DWC-based EP glue drivers report it consistently, without duplicating the same flag in each individual driver. No functional change intended. This only advertises existing behavior to EPF drivers. Suggested-by: Niklas Cassel Signed-off-by: Koichiro Den Reviewed-by: Niklas Cassel --- drivers/pci/controller/dwc/pcie-designware-ep.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/= controller/dwc/pcie-designware-ep.c index 1195d401df19..0e5a8d200b00 100644 --- a/drivers/pci/controller/dwc/pcie-designware-ep.c +++ b/drivers/pci/controller/dwc/pcie-designware-ep.c @@ -626,11 +626,19 @@ static const struct pci_epc_features* dw_pcie_ep_get_features(struct pci_epc *epc, u8 func_no, u8 vfunc_no) { struct dw_pcie_ep *ep =3D epc_get_drvdata(epc); + struct pci_epc_features *features; =20 if (!ep->ops->get_features) return NULL; =20 - return ep->ops->get_features(ep); + features =3D ep->ops->get_features(ep); + if (!features) + return NULL; + + /* All DWC-based glue drivers support dynamic inbound mapping */ + features->dynamic_inbound_mapping =3D true; + + return features; } =20 static const struct pci_epc_ops epc_ops =3D { --=20 2.51.0