From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from GVXPR05CU001.outbound.protection.outlook.com (mail-swedencentralazon11013002.outbound.protection.outlook.com [52.101.83.2]) (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 CAE0A3859D6; Mon, 20 Apr 2026 09:08:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.83.2 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776676094; cv=fail; b=aMAr8ohG3HN8jytr7U4Nyx3fl0cZmwQjzF/bLjhZrbfnV1nBu6A446eLwtzGE/PgPmh7mUbbgUKLQPNotISEwloT3sHpe05qR9w2u2+Po4c8nDKqkuTy03RsaLbShNZewDgqYhUYewxoCmnPkYhnX/6xhIr8zTrsrsuRyaIWAvQ= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776676094; c=relaxed/simple; bh=MaOS2rctREHH5PkN/3OPnNn/rsGjlLBa6i9/nccQah8=; h=Date:From:To:Cc:Subject:Message-ID:References:Content-Type: Content-Disposition:In-Reply-To:MIME-Version; b=IU7Z8ZZZUx4hjz6BrQvZTjz9BFtGiwP94HK7RYLPk+e3orq3JkyAqIMnwT2kNfJ8GvE6UTm6NqJFmt9X4ZdzKJB84GDybTnRGgaD4DoAVByyNOJarZfY+Y0iJoOFW/AShv1C0dSf8Iqw+1X2VayQr4ArHXCFA6sfqwvoqSh4xAk= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com; spf=pass smtp.mailfrom=nxp.com; dkim=pass (2048-bit key) header.d=nxp.com header.i=@nxp.com header.b=QoCKZfcI; arc=fail smtp.client-ip=52.101.83.2 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nxp.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=nxp.com header.i=@nxp.com header.b="QoCKZfcI" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=yDDEZUmrbOT4D0brarbas4hhjNOHirgHmUfBpsHltGePiILvf2BPLwHu1wenE/2yTr/sMvURB8LThD2vbDQNFkCgWiS93IHcYJa/EyqiNLxgUpr+eL6sg00p9R5aTWBtpK6taZtcdEo41Wikh+kfwvXO2SFHvf1OwTAq/6B9V+kV1+vAEVl1Nn0NCCx6UQQde2vWxAL49ehGVZ1uKagfaP9U4pgRoJzv7jegn7qYFDzORCz5VAOsfirZEf622D04FFBiYOgInQQLhArBq1d3mXdAEGC7RokT2LvqM5KIlPcvOWN+OR9MFi0pqU+3iN0SSntPluFzm+BCcqZmeYcvkA== 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=MaOS2rctREHH5PkN/3OPnNn/rsGjlLBa6i9/nccQah8=; b=k1BtwquiOlKSmLwbObwMQChbF9mUC94mBPKA8arPboADUEZlfWQWrknG6X4oOQ5Ek0S9fPl0CZnRMgEvLS8SrJABmeElPsRy49BA/RxSGvBnTP8tFdSpVuBydLR9n+N83OU0CxAggq+FRHz+/uSSBWFl3uZdTwXNn3LdT2mZKbAKPOXVCPzza9YA9opZRPgYtLPjN/NcVm1gWyEWs8cMk33bFkQ3EhCZYb083cXZJqAxkjHY2/O9qgOHs/eNg3psLOIZKU64bj/969a247in/K0aoalXAUrOtf8juML916DLk6mOURwyHiRUGSnQf87an67KFJSaTkM4uM89UmtfYg== 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=MaOS2rctREHH5PkN/3OPnNn/rsGjlLBa6i9/nccQah8=; b=QoCKZfcILgYi4kDdmISWQ7M7Ohy9Qqtz4wZchGoAwlSCDFhoSsxmrTbwzZx0ioJYAXGGyK42kW3++SPb7Vq8VMPG/QWo4hFUHworSb6uDhA13N8CkN8YSI+XbF8DdSNSWGXNwIxa6Q3y3HKoa6JBAsHifyqYv6FA5WR5u/c7bIfWRfE2KEaE99FINLPEwc/WaCftrR1df3SO9B7zVv1ZC9dyzga2DUxDi/kVI4KzEtkyrFElG2EfkuELbh0VkRPf2qKaLbAWCrbtxr1yoXsSGHG133ulNkgTXKmBR5FE/1jDlISdCUqDEjkdxEfYsQKL3mxNLh4Lm21m/+CkV7nXKQ== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from PA4PR04MB9366.eurprd04.prod.outlook.com (2603:10a6:102:2a9::8) by AM0PR04MB6963.eurprd04.prod.outlook.com (2603:10a6:208:18b::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9818.32; Mon, 20 Apr 2026 09:08:09 +0000 Received: from PA4PR04MB9366.eurprd04.prod.outlook.com ([fe80::75e4:8143:ddbc:6588]) by PA4PR04MB9366.eurprd04.prod.outlook.com ([fe80::75e4:8143:ddbc:6588%6]) with mapi id 15.20.9818.032; Mon, 20 Apr 2026 09:08:09 +0000 Date: Mon, 20 Apr 2026 05:08:02 -0400 From: Frank Li To: Nathan Lynch Cc: Vinod Koul , Wei Huang , Mario Limonciello , Bjorn Helgaas , Jonathan Cameron , Stephen Bates , PradeepVineshReddy.Kodamati@amd.com, John.Kariuki@amd.com, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org Subject: Re: [PATCH 23/23] dmaengine: sdxi: Add DMA engine provider Message-ID: References: <20260410-sdxi-base-v1-0-1d184cb5c60a@amd.com> <20260410-sdxi-base-v1-23-1d184cb5c60a@amd.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260410-sdxi-base-v1-23-1d184cb5c60a@amd.com> X-ClientProxiedBy: SA9PR13CA0035.namprd13.prod.outlook.com (2603:10b6:806:22::10) To PA4PR04MB9366.eurprd04.prod.outlook.com (2603:10a6:102:2a9::8) Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PA4PR04MB9366:EE_|AM0PR04MB6963:EE_ X-MS-Office365-Filtering-Correlation-Id: c887481c-8715-47f4-ba9e-08de9ebc57a6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|52116014|366016|1800799024|376014|7416014|19092799006|38350700014|56012099003|22082099003|18002099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PA4PR04MB9366.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(52116014)(366016)(1800799024)(376014)(7416014)(19092799006)(38350700014)(56012099003)(22082099003)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?NHhCy5QLzeMqN9VdmAMvDvSMD1OKXtBxKF81MnjYxoSQCQl6OBsoyO74IeCO?= =?us-ascii?Q?DwEtpiR5X1jTqzrjHFICmG492HXHADKefMkDie6lLTVh24G9gSSglpHcbvg5?= =?us-ascii?Q?7wp+SjYK6ri5tcJn90/sSjvZ4dkHfgLlpBUw/WehPvdnyycYZiFW/6rEyFmG?= =?us-ascii?Q?l3WLpKGLkHX1XsSvH1mz0SsAeWTDhb9CYlaK7mXQ5Wv/wMnjtV8s/awPDhgr?= =?us-ascii?Q?EiApDmsDAoKc0GskTwebB6I2dTnNepmQ7wBH+RQS2sPh+eCA1GLNjRa4QDiL?= =?us-ascii?Q?HLtEmxqwUExfDhozO9EjPXnS2NrH2O4mfp5xo1Q6+/8GMC/pDYw12l8QLA3k?= =?us-ascii?Q?PE2MlDaL3vsAo+ISh6P5zfoxa557OodGwBXwHItLSdL4WfduXDvSfur4kBUz?= =?us-ascii?Q?Ud2ze/1o3tAhbuIQbts+xS8oWsaA5hk5GWt2FujWFMToP9rlvDAru3qvmX25?= =?us-ascii?Q?hxGM5YlQMYlzOsvrMPWvqn65gLnM2iGwOKwZDqNysQtCKOWu+C6NXYu1bQLb?= =?us-ascii?Q?F5aRteF6Fiu4H6cpxO57iHCyP05qB93oX2T5xeL8Gb2sJcCLy5vaJmDucud+?= =?us-ascii?Q?PefKpnJQ6wjrLzRp6+kV98dX5Q43LhFTMIH8XtTa6gOPEtNnPt76u6QZaIB3?= =?us-ascii?Q?A3rST1SQUbpVAtrRC8shlkxI9dWq5hN3yEPgEE22ld9+NWbLMIW3GV976YY/?= =?us-ascii?Q?FQN6cpPsEub7NbRaq+AfRmlqXWYJkFxgsEKYgPNvUZdMWciTSIXZSlnMrb23?= =?us-ascii?Q?oyVuTgs5Bp+zWa3We+PdTkkm3UcoyGyZ5CtasEsNf2fzhLwrSGgCkBXmhVpm?= =?us-ascii?Q?Iucy/koiuE7Do+rfEAFM7gTnHdA7/eVpkB/SNCLDq5z7jThlsQr0W/j94IjS?= =?us-ascii?Q?BBjTn+6rc6GfJf2g/LCkO22jVSzGZojs0IY0F25bghW+KTsOCkIrIxbAxFVh?= =?us-ascii?Q?WADbmzdoUGw1giwH9TuusjRupwSK+WNMMy0CE4q/BZRGtNtNeDd51mIBuwkh?= =?us-ascii?Q?BYUE3t/2rJhnqzpX4s5ZLYijardNAyIM0IQEy8DmAOFIXC6W0c9SWWAXI2Xq?= =?us-ascii?Q?rZWTft5xlrtJLFkqBbpwsjIsuc25GbywpN7zHVvwkoQHEBUCFQJjHPBQz12q?= =?us-ascii?Q?fwanY5JmiKMCDu4ZLC2yI2cwh7iaKQZ1hzdP7qQyUDwKvJW+LcoHshldlo1B?= =?us-ascii?Q?+2rx3sseQepSwAcLFi4h/N230Bn0PMJJDvk3R2A3VMvFQcqwItnFeLcWAFHg?= =?us-ascii?Q?zPhcFFrMGi3fj5OFpCPn1NtZ8el+bFuyB1ffFt/IHqt0PEoTnyf96Br1vBdk?= =?us-ascii?Q?k/MeHsAYVnv1i8mvzKx1GBmbl1V1N0vf/FAKlpM9IGXI/SPlz0SjxPJxUnuG?= =?us-ascii?Q?sEdxkAx5fOIOUB+VHwuvEuW01zUsfwDqIo4FAyOhSut0kRVqBcmKtXfOLlLL?= =?us-ascii?Q?1kvLHWLn78+Uz1dTOEHQO0vRbY/aHNy5GEcqj9115+oEoKpuaIqCkCIYHjDC?= =?us-ascii?Q?x8MoP/KecwGthhjqFVtq67t6WI8+F5xtl//RxYlyZ4ti/SmFd2rh+9Nl60QS?= =?us-ascii?Q?JhjbaDKFkvOHQp4SN8IWq3WP1/HGP9xBMjhoYYWoKdtrg785f01x8G5RWPnE?= =?us-ascii?Q?5m/5xn726yB0GDNdvgiTIDclX0/AmqhcU5XEz1pKr3wp7JQ9NQNEStE1I3xP?= =?us-ascii?Q?51ads7h8GJ6jVLiXzZWbLQP7QYBj5fKhvciNNd++8s0oK34nxBnrQelrNN80?= =?us-ascii?Q?gByKofmMrQ=3D=3D?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: c887481c-8715-47f4-ba9e-08de9ebc57a6 X-MS-Exchange-CrossTenant-AuthSource: PA4PR04MB9366.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Apr 2026 09:08:09.6709 (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: dObaAYRZhNDZYLtgK3ubiYxXQhhsNopjHnLirFdo0P0Uh9EsvDeNdMnltEaRqJh9DKhnxSull2+gBEKo26trkg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB6963 On Fri, Apr 10, 2026 at 08:07:33AM -0500, Nathan Lynch wrote: > Register a DMA engine provider that implements memcpy. The number of > channels per SDXI function can be controlled via a module > parameter (dma_channels). The provider uses the virt-dma library. > > This survives dmatest runs with both polled and interrupt-signaled > completion modes, with the following debug options and sanitizers > enabled: > > CONFIG_DEBUG_KMEMLEAK=y > CONFIG_KASAN=y > CONFIG_PROVE_LOCKING=y > CONFIG_SLUB_DEBUG_ON=y > CONFIG_UBSAN=y > ... > +} > diff --git a/drivers/dma/sdxi/dma.h b/drivers/dma/sdxi/dma.h > new file mode 100644 > index 000000000000..4ff3c2cb67fc > --- /dev/null > +++ b/drivers/dma/sdxi/dma.h > @@ -0,0 +1,12 @@ > +/* SPDX-License-Identifier: GPL-2.0-only */ > +/* Copyright Advanced Micro Devices, Inc. */ > + > +#ifndef DMA_SDXI_DMA_H > +#define DMA_SDXI_DMA_H > + > +struct sdxi_dev; > + > +int sdxi_dma_register(struct sdxi_dev *sdxi); > +void sdxi_dma_unregister(struct sdxi_dev *sdxi); where use this it ? Frank > + > +#endif /* DMA_SDXI_DMA_H */ > > -- > 2.53.0 >