From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from AS8PR04CU009.outbound.protection.outlook.com (mail-westeuropeazon11011002.outbound.protection.outlook.com [52.101.70.2]) (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 99061544D63; Wed, 23 Sep 2026 16:20:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.70.2 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790180411; cv=fail; b=X+FkyPTtN+kwk0Aakhhv7vltEcZWm1zbT3i8+RM0ij8Hs9Fl2D4yOQ3o0xiOBRQAgLtzPIpVaNgauB9PZxvCsDFKzPAuFr7ybyBu6W7asO3DYtPLhFPPQSAIr/M+utK0V5WCkW4pdBEQ3Ec8RMAyYGPIvlPfr8BN7zxyEyTJF/U= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790180411; c=relaxed/simple; bh=SQLNuFHw/zpAETUGpHSpY6G3pmWUvsgc4Uzlxk0XO0U=; h=From:Date:Subject:Content-Type:Message-Id:References:In-Reply-To: To:Cc:MIME-Version; b=XCHcb1Tfjx5B6DJepQ1sjI1J86KUuSzsegVHT9pKmhJHvK/V6DWrcN2584DDIqLhLUndE3ZM7yoClR/hAvs8OQ88jUGD32JGcYyJOLSpPO4Unt/G7Z81bIvlqiDWOU/CVfiAMbnF0XdudHX5JIbFdSpYxv2SBCXdOyT4GAorjyY= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.nxp.com; spf=pass smtp.mailfrom=oss.nxp.com; dkim=pass (2048-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b=pyR97giH; arc=fail smtp.client-ip=52.101.70.2 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.nxp.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b="pyR97giH" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=EyakZkW+h3ocJyZPtzEtcBSnPDEi8DnJiaNkD8NNJ0W8+aFGr6AyjWe8cA+Sle9tkceIpnaaGRgp7mP0VdR2ZaAGmnbIys9GL0xuBvXbiSvVaiQ02IKWBrAtgJKQcutAlOtwxJkTU8CxeGuZf6SZiQKTNA0zcEnMHOgubVltm7hPLsXQn2lItZdnFURJ6L8nGBSigA3vMMwty/hx8eURhziFfz3s29cfywcaBtGE5LPTWJzB3kE7LziS7+VC46nax1Y1NgxrS2Ws70QNEGX4KqQQbwy7/4SAe/7HuGiBHQCcGJRhTUa2Sjc22ImYhUdEDhIGwSrha1iT4I89/JP8QA== 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=6Zs+A3N+H4OIvo1dDhBdyyEbjtuWQj/VrfEajEwtm1k=; b=eOsTGzjNSR4tvH1lEc+G1IqVudkpNEU6d69z4iGTvspqtIFGdggAIvsq1sUInLNYyzGOxbw7k9Kq8jxpL7q+YkZZ5lC5Rr4/suPfMExJ/BruQJYAjhWA3EK6C+H9fD1oc73d3d9BXyXPxQ2khtZkjEA0z3B2XVXR9flqqHwCwac/ELgg+6M+PSh4ohaT9bljVKZsPFZFxOGXF8DEl3P8Z/ACCeMExMsIHbsPy4Ny6VIlodiKLhuF3bjIWq4DQseRzUHKBwemUoipSRc/skQdWwqMUpv/HOVjL/HzVlwNiNWk4xhlcs61FA1fxkJPU6bQXegdLLhVIOBhZQ3LJmJffg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oss.nxp.com; dmarc=pass action=none header.from=oss.nxp.com; dkim=pass header.d=oss.nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=NXP1.onmicrosoft.com; s=selector1-NXP1-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=6Zs+A3N+H4OIvo1dDhBdyyEbjtuWQj/VrfEajEwtm1k=; b=pyR97giHDUIXKltWGfxVTXbavglmplUTq30Gs+eP3zh8TTYrfilEg9Ar7xpENtUjZMCBZZ4BrLpnJapgYfBXdTA0lA30tM50cL8rzY+n4WU9TRh3i0GHsSAbcRou51/ok9EkFxJVMQ2D0TVJofV76Oku5UBR/6DWsXc+KEkjl3lIFjdaKK3JQYk87dVHSUhsj90gRRCnmmf0LU3XPU6XzhhPD6/hKq9qvzpSYFR3GJ4ydYY7dafhuHuXIUXhi/BYS9L1ydhQSxlRGh9+smG2cZK2oLopwjri3rdA7pG5sH04uwK3dQ+rvMH3UN5JOQ+TWP9kUd0irXI3KWPwo/7VUw== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=oss.nxp.com; Received: from GV2PR04MB11799.eurprd04.prod.outlook.com (2603:10a6:150:2cf::9) by DU4PR04MB10433.eurprd04.prod.outlook.com (2603:10a6:10:55f::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.451.17; Wed, 23 Sep 2026 16:20:06 +0000 Received: from GV2PR04MB11799.eurprd04.prod.outlook.com ([fe80::2146:83a2:5329:b7c]) by GV2PR04MB11799.eurprd04.prod.outlook.com ([fe80::2146:83a2:5329:b7c%7]) with mapi id 15.21.0428.015; Wed, 23 Sep 2026 16:20:06 +0000 From: Frank.Li@oss.nxp.com Date: Wed, 23 Sep 2026 12:19:34 -0400 Subject: [PATCH v2 05/12] dmaengine: add dmaengine_get_copy_align() and related alignment getter helpers Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260923-dmaengine_prep_dma_pq-v2-5-32ed65b8a9b4@nxp.com> References: <20260923-dmaengine_prep_dma_pq-v2-0-32ed65b8a9b4@nxp.com> In-Reply-To: <20260923-dmaengine_prep_dma_pq-v2-0-32ed65b8a9b4@nxp.com> To: Vinod Koul , Frank Li , Dan Williams , Herbert Xu , "David S. Miller" , Jon Mason , Dave Jiang , Allen Hubbe Cc: dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, imx@lists.linux.dev, Frank Li , ntb@lists.linux.dev X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1790180376; l=2372; i=Frank.Li@nxp.com; s=20240130; h=from:subject:message-id; bh=lXp5Ebsxc0CGIQcgDZ0XzZpIYG7TQxy9TOdVgUs//Ko=; b=49heUt1pcyZxpalPPddc9ilC2L+biGmpOVRd4wq6JiFEkXXkolkVK8Iz99dJEPl8wbKuGKfMi eHBO2Wdz2l1B0uIwf5AceN6JldrX9uLyNRSRLzcKkGg+uKlZ/Pbzs9b X-Developer-Key: i=Frank.Li@nxp.com; a=ed25519; pk=I0L1sDUfPxpAkRvPKy7MdauTuSENRq+DnA+G4qcS94Q= X-ClientProxiedBy: CYZPR10CA0003.namprd10.prod.outlook.com (2603:10b6:930:8a::15) To GV2PR04MB11799.eurprd04.prod.outlook.com (2603:10a6:150:2cf::9) 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: GV2PR04MB11799:EE_|DU4PR04MB10433:EE_ X-MS-Office365-Filtering-Correlation-Id: bef30e0e-9132-4042-bec6-08df198e877d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|7416014|376014|19092799006|23010399003|18002099003|22082099003|3023799007|56012099006|11063799006|10067099003; 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:GV2PR04MB11799.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(1800799024)(7416014)(376014)(19092799006)(23010399003)(18002099003)(22082099003)(3023799007)(56012099006)(11063799006)(10067099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?d0IzcnlvSXRrU1c1MC9INTBiZ2R3NlIrZmRFcXpmZGxzdVFodzUvak9TRWx6?= =?utf-8?B?V2t2Q3RqK2NydDQ4OW0zcjhYWUpJd1EwUjZTZHFlL3I1UEdqY2luS0ZNQVlh?= =?utf-8?B?R0Z2d0JURm5sb1FSa2hkWUcyQU5IS0NzOWtWeTBFc0pIRVVzUzdpbU56eWRi?= =?utf-8?B?UGd2ZU5ESVdUYlJhd1NrTUJrak1SRHFXL2VjWlovNThRb3VGVXFVRDhhemEx?= =?utf-8?B?d04xZkxwaVJhMXRodWNwQUtkSy9EMU1QSTJIMGJPUWVjL25FR1FMSTBBSWNH?= =?utf-8?B?ZU56Q1JPcjdpQit6MXNCMTlwQXl3NHZ0b3IvMUdoWGxhR2RPZ25yaUxjVFNt?= =?utf-8?B?TXVQMHkrM0VpWDMwbUxmRVYyUTBaVWFvS3oyNjljU1JmU3hVOUo1dXBHaVV0?= =?utf-8?B?M2c5MWF6aEYvSDVSSnBnK1BnUThWQjkyYlEycHphNW0vTVJlZllmbHRKYmU1?= =?utf-8?B?bSt0c2tYa2J2U09RYThacXQ0T1VOMmZBcW9UNUxDbG5PdEhkUFFRSndaek1t?= =?utf-8?B?Zms5d2R1L1pFbnZEekpOZUxpNXRyNFI3T2drZU1WY3BUT2tpem1MMjloV1pX?= =?utf-8?B?OFlQaUxQR2FEMUhvOTFJemhVSmd3L00wVGNVYjY3N1ZDL0k1OC9ncm56YVk2?= =?utf-8?B?ZkVQSkY2MWJjb1diaXUrWkgzR0pSMWh6Y09PYTNPeDBCZGJsMlVIUnNTd01i?= =?utf-8?B?WENETU5jd1JndU1IeVpGZHlQSnV0aG5XQitZYjkrQ2VPdS9Cdi9KSHIwNXh1?= =?utf-8?B?YmpnQ0h4VXJYVWlhb3NhVGRqWVNGZjk1OXhtWEFPd1NOdVgrOWpDbE4xQkhH?= =?utf-8?B?NCtkdi96V0NrcDh1OUR2RHArTzkvL1FXcVFiZGJpUXdLTFY1Y3JuQ2ZzUGNP?= =?utf-8?B?bGlzaEFHVjJheUYwM0c2WWVYdE4zRGJDVEU5U1FicXcwR2M4K21HYVpBUWlX?= =?utf-8?B?cEU0NmVPbi9SNGlOQzhxWTVNQzBsWWg3M1JBU0hKWFBUa2N2NEVubTU4YSty?= =?utf-8?B?NkxyTkh3YTNKSjBiUnB5RHR5LzNqNlRtVmhjS20vQitnOWRTTFprVnBiTXlM?= =?utf-8?B?V255ZEFsT0xSY3VONHJCdWRIVVFQZk9EOFVNZXNoQVBGVS84WXk4Nm15V2Rh?= =?utf-8?B?MWkzQ2JjL2tKbFZqNUkxSm11VEJtMk12VGlILysxMUlWdEo1L2hkQXp6dUt6?= =?utf-8?B?bmlUN3UrTXU3VW1nYk8rK3VEMk9vRjlRZlVJRVpzT0xUZHBBUkYwQnM4cU9P?= =?utf-8?B?ZDkvam5rUCs4ZFRZcDR1SmpCU3lBdTVRVktDc3dJM1pESTlKbG53OVBYOWNQ?= =?utf-8?B?aEVKbjVhQ0pJNU5DOXEzYkJ2clVDV3VHOVpvcnh2TVlWcWVnM1hUWUhFSWF3?= =?utf-8?B?N2E3SUFLWkxYTFI1M00xblF4S25XS1F4ZEx1NWFtcWJwK2tXRjRPRGJXa1Aw?= =?utf-8?B?TzAxZGZNWUg5NEptOEQ1eUlzbGNSVUVsQzllaUJtdzhyN3Fobk5ZUHpTZ2M2?= =?utf-8?B?dlc2MXhXZGY3UVByaE9nOHdtNFJLSTNjajdnREZUeG5ydmZWcHp0VzM0OHdO?= =?utf-8?B?V2xDZHduR244VjFISTlRNGFvd24weVVHUU9UUUhib29QOUFKaUtLODR6TElz?= =?utf-8?B?aEFuV0RBdXllMm94SDRPU2JMd3haWDR2MzJzNno4MndYTVZhbW5QejVUZWdP?= =?utf-8?B?cjhTdlY5ZFJTaUNKU2pKVU1Lc2QxKytRMlNnK1VRK0EwMWNQMG5ySTNCaDdD?= =?utf-8?B?TEw3L1RUcmV3TlIrS3BwM04rdkp1ZndXTURrWmI3VjNtRFFld3pzZlB3Yk15?= =?utf-8?B?aXlQMXNtTkh2dXpSTFk0TmNzUThpZFlnclFqcm8xOGJaOW8yOVJ1NHBUTjVu?= =?utf-8?B?UG1IaUQ3UVdISUtnbUhpR2NobUlFL1N2bUMxVjR4ZlRmekZmeC80UGhqL1RB?= =?utf-8?B?ZC8rZzgrcjRQWWxjV3hoWUZpOGN6N2J1eXlIVkg0RUVQQ3dMV1RmU1N0cDVY?= =?utf-8?B?dWJjQ2hQVTAvanA1ZVJUcEZqQ3NqRzJlTW40eGVvYUUvUUFocWVUZFI1TUJo?= =?utf-8?B?Y004UU05cEc2cHQ5cFc1YnJoVTVJTEJhWWZjZU9DRHhlbFVZVkdoRDdPMUs5?= =?utf-8?B?bmhVTEVGY3lMQVZ2YjE0aGxUWE03YWVzZE01Uk5va1Irc1lESVArNFc2UFBa?= =?utf-8?B?eVh0TEltMUc1Q3o3Zk9GTnVjVy9IbFFKdTFBT1QrQVdHVUM3UzhtY2lOb3pJ?= =?utf-8?B?THJVQk9USFhQOW5BYWVFLzA1eTdMaVd0V1lucElQdU9rS2o1VHgxdjdYdm80?= =?utf-8?B?Uk0rc1ppT3ZLcW5vUnpvU0NtWWNFbzdaY2NiNEl0MFA1bXpDU3Qra2ZZbnM1?= =?utf-8?Q?oxZympUXgF9tWYTC8leKN7OsWEjQzbvztp6n5?= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: bef30e0e-9132-4042-bec6-08df198e877d X-MS-Exchange-CrossTenant-AuthSource: GV2PR04MB11799.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Sep 2026 16:20:06.1001 (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: JEKFjnH1K+faUz+MatVpsy1fCKl4cj++hw0ybx+ekW3d0RaBygIOwGEsC9RixD2ingTUnoev1g1mx12PyEQAzZD5vwSsHJK/o7wIMs2yNRuUAUvljKlIPQm+QXIJou5/ X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU4PR04MB10433 From: Frank Li Add dmaengine_get_copy_align(), dmaengine_get_xor_align(), dmaengine_get_pq_align(), and dmaengine_get_fill_align() inline helpers to retrieve the alignment requirement of a DMA channel as a power-of-2 exponent. These complement the existing dmaengine_is_*_aligned() test helpers by providing direct access to the alignment value, which is useful when callers need to propagate or compare alignment constraints. Signed-off-by: Frank Li --- include/linux/dmaengine.h | 48 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 1efb04e137673..615eeb708dcda 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -1537,6 +1537,54 @@ static inline bool is_dma_fill_aligned(struct dma_device *dev, size_t off1, return dmaengine_check_align(dev->fill_align, off1, off2, len); } +/** + * dmaengine_get_copy_align - get copy alignment requirement of a DMA channel + * @chan: DMA channel + * + * Return the copy alignment requirement of @chan as a power-of-2 exponent. + */ +static inline enum dmaengine_alignment +dmaengine_get_copy_align(struct dma_chan *chan) +{ + return chan->device->copy_align; +} + +/** + * dmaengine_get_xor_align - get xor alignment requirement of a DMA channel + * @chan: DMA channel + * + * Return the xor alignment requirement of @chan as a power-of-2 exponent. + */ +static inline enum dmaengine_alignment +dmaengine_get_xor_align(struct dma_chan *chan) +{ + return chan->device->xor_align; +} + +/** + * dmaengine_get_pq_align - get pq alignment requirement of a DMA channel + * @chan: DMA channel + * + * Return the pq alignment requirement of @chan as a power-of-2 exponent. + */ +static inline enum dmaengine_alignment +dmaengine_get_pq_align(struct dma_chan *chan) +{ + return chan->device->pq_align; +} + +/** + * dmaengine_get_fill_align - get fill alignment requirement of a DMA channel + * @chan: DMA channel + * + * Return the fill alignment requirement of @chan as a power-of-2 exponent. + */ +static inline enum dmaengine_alignment +dmaengine_get_fill_align(struct dma_chan *chan) +{ + return chan->device->fill_align; +} + /** * dmaengine_is_copy_aligned - test copy alignment * @chan: DMA channel -- 2.43.0