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 3DCA8C369A1 for ; Fri, 4 Apr 2025 16:53:10 +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:In-Reply-To: Content-Type:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=W+sgAnsLhH57eOdNsvuI1L0ywx/UFZY/lzF0V83S3Uc=; b=xe465MS4yemkcOIlMEkYVzHqev DZz368tclb1vn4gWvybpSJS2orlt8JBrcqox2jCOoOyZz/DwsFf85k5QDyBEVVwbmKLtaZxX7r/mz QoC1vAa60ubFHGf8sIQPH6s3FKyPtSu20+SgAklTBD1BAXJzdVMwSX8nu/PF5Dnt6w38Fcgom93Oq g7evYwi6rnQPxVmOtkCBuI7cLNn3I5dka63j5wIgBA0KH1omsEeT+ozXeFITkusHBLtxw/sWIRjqc yML792IhJy7O37qkh6WYTXlCVI2H8fKqc0VQKOvZnCLXSALzbJGKAZi+cjEDz616r5tPthkOW4bJZ JYZwXgcQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.1 #2 (Red Hat Linux)) id 1u0kHs-0000000CKvd-3tKQ; Fri, 04 Apr 2025 16:53:00 +0000 Received: from mail-am6eur05on20619.outbound.protection.outlook.com ([2a01:111:f403:2612::619] helo=EUR05-AM6-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.98.1 #2 (Red Hat Linux)) id 1u0kFG-0000000CKZ9-1Lmd for linux-arm-kernel@lists.infradead.org; Fri, 04 Apr 2025 16:50:19 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=aKcK61JMoUNs89kVShuoRb4HB058BSf7evRzhnKPQg9Z0kb6kcRBcNn2YgQdrqUz/auqtddfC6cBMaT5o13xlhxDgwGE6LvAFHJVe19MxaH+wsW8GpGp+zCvqqxNHHCe5XbA1kJvgh61f9U3BUL8XLK4Ypq2G0e7BaBSsbVhQkwcnql2zZsjDHSAwQeIcb68xLmSWYFJqFi+W3cJXvZz/e0JlNAZaoZld3OgfPgHXMH1tnX+iz90GvNAVJcD2gFNZx014aqVP+c9XiHpN1jlCPuPU5HE3UShY1AzldPBHBYmBJPsojEjv9uvAVzNdKO/SB6E4uCtOq1dDYhyb606Gg== 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=W+sgAnsLhH57eOdNsvuI1L0ywx/UFZY/lzF0V83S3Uc=; b=SokvsjstyBEt/h/6kIL96e+ZgN6tOQkw2PKoT8oOhjjesa/jouh6Nsb1nACahFXmAC2JCUE5oaPIBoTEbhg/43J1WRvLqqLSRxTjaIlVTZYEt8qx0wdiEvmSuOLyC+NRnBbjamk77veuQ1XQR2G9ZM9G51qMS56LZ7vezM/saI7iXDp2S8ogtOg+vUTePYaL/F/DvYlRjfA0z6yzyE4H8mFHV0ESuIufhkf/y7g8Dmj14MzZLlqNRnby8zi55KFtqnrnI/zStnvvMbAJmXnTW8TJv8ofruXkfufm+ynrYzf2EcDzHMBTd219uUlASE90w1+wy6smdE2foHn/HpqJgA== 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=W+sgAnsLhH57eOdNsvuI1L0ywx/UFZY/lzF0V83S3Uc=; b=oKsLJlYb2xaTXd+7N5j914qqXYgBGsXfCLUMDBrGX9PxVziVrIp/57pIx8rRPWPrnJqF54HF3I/w+Zk12F+YPNdNP+PM47RW99as7c1jR9mgkWo5avl1pHOpKZMFG03Xl9qdxMBQYUtY7xaooKMrqOqXmnVs0QqqE+MIFOksg2Xo+AvLoaS4zmuGLEDFfflAPONod+af9+I50cGNqgyrYanHjgRCMwJqdu6D1jEhGtuhbBS1RRHoPm0ESdX5KPd93GY3tnZFEb/WWx7D26Bquc2GUzQjlUwC1M0cPawtWirboueJ+viCc1ysD8u95zvHqdjOaakYGMkuOKVRf61AWg== 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 DBAPR04MB7303.eurprd04.prod.outlook.com (2603:10a6:10:1af::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8534.50; Fri, 4 Apr 2025 16:50:10 +0000 Received: from PAXPR04MB9642.eurprd04.prod.outlook.com ([fe80::9126:a61e:341d:4b06]) by PAXPR04MB9642.eurprd04.prod.outlook.com ([fe80::9126:a61e:341d:4b06%2]) with mapi id 15.20.8534.048; Fri, 4 Apr 2025 16:50:10 +0000 Date: Fri, 4 Apr 2025 12:50:02 -0400 From: Frank Li To: Pankaj Gupta Cc: Jonathan Corbet , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "devicetree@vger.kernel.org" , "imx@lists.linux.dev" , "linux-arm-kernel@lists.infradead.org" Subject: Re: [PATCH v14 4/6] firmware: imx: add driver for NXP EdgeLock Enclave Message-ID: References: <20250327-imx-se-if-v14-0-2219448932e4@nxp.com> <20250327-imx-se-if-v14-4-2219448932e4@nxp.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-ClientProxiedBy: SJ0PR03CA0138.namprd03.prod.outlook.com (2603:10b6:a03:33c::23) To PAXPR04MB9642.eurprd04.prod.outlook.com (2603:10a6:102:240::14) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PAXPR04MB9642:EE_|DBAPR04MB7303:EE_ X-MS-Office365-Filtering-Correlation-Id: f08961b4-f2bb-4fc8-77e8-08dd7398c2fe X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|7416014|1800799024|52116014|376014|38350700014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?grjGk8WP1c14NjFtfKgFm53i0jj3Vc6zYLpWidSvw+azurwqQGHLV4TONamX?= =?us-ascii?Q?nzwgRmH7UDpRI9GDuO98diaJI7Fr10KZuBitGadFVBbmNp7fNe5OY7MK5kyM?= =?us-ascii?Q?9YgE7JVC1RYDqE4tProB1HyTGK5Nc9E1QFVZXZFis3wIour6C6NasCvS1aEB?= =?us-ascii?Q?YujHmmK9ICVRiVZknufwS0R3b8N/SgPGxz4vwfNYF5yheQSXT5cuFnqX+LMa?= =?us-ascii?Q?tt7PpbsF7wRHqT7hq7sQWRyN9i7YIUfvBP3wxS5s3OGUXoTfam2KOEnyl8b3?= =?us-ascii?Q?lYORlNIV+swh042Jw+oMoETAW6pN1wd6kvzMDEEorzGmLAAIxcoWuczrX8L7?= =?us-ascii?Q?sAyZ3rowv9dwy76a6s7RSvaTO9JszEObtzmk1FJlvISpTOcyAieiUtbHz/9y?= =?us-ascii?Q?DhKORegBZSlGkH8SE59FD0stRH3VDt8zsXPBFrunloNs9pYlqKvDgu3PN+HW?= =?us-ascii?Q?qHukr+pwT7w5NybvTqK+1KhZqNWZp6ukhiYHvEwQjv2/q6SwtTtH6QYNS80X?= =?us-ascii?Q?y44vKGJbjScg+cPreEMSWHhCgwBJYXsrdyXSp84+MTtdi9g4TCvEGjpvkK9U?= =?us-ascii?Q?Rx9O7XbZxS0R2P6KrCl+t7XB+FxC6fGqozrwNPg/K4FS7PnzjswxEPqCd7CZ?= =?us-ascii?Q?Lp/GrTf61nYjoh+8MdHvQyjS1oM3wA28vCipmswHQ5bBeP53wdNMmQjLOgHt?= =?us-ascii?Q?aXKi7MCCG0PY49QK6AUYWvw0M+A+PbskBCX4YPqgd2a0yQo77AiP9jrv9xiE?= =?us-ascii?Q?Fed0UKSqIQU5H0bo27eDoDsXvTSQDso3mfVZaqPBBet8cH6dFuvKKFQsbJcO?= =?us-ascii?Q?TNCmt91TYL+m6jCNilGiE6AFvnrAD13uxuFSfmUhA9htMvdq+Ikokxe4Sgd6?= =?us-ascii?Q?Dw9tPZr2em+fG5+sFfYEL8JO8B16pRR2e2r/5WDOCu11bR6iwxYGLzzpooQZ?= =?us-ascii?Q?RwyPQDG/F1SrkdgA6jRBT4kKTjd4gYcbGbF24gBtWNbOQxItQdvrrRisC+de?= =?us-ascii?Q?RvLjSMdtowEgi8o0p9nZNYJOFWiV/NzCeuKBZ2IMy3hbvrtRtsEPb0IEYe+v?= =?us-ascii?Q?6XaresXpK8d+HVED3t0DiZM94sGZCn0aDPQHLW8mCOTiu/2usoQ4/nxNkyg9?= =?us-ascii?Q?O+5HK2q/lroKdD6lhFOFSBrhWIO7BJl7kzRVz+Z94VDUCUsXJchuFZN54OQB?= =?us-ascii?Q?YrUSDLTRwzAqZPSObQA30pM1BDrBZf7nRkHiIHpe7vQp5Of+NpWa/AlRkRv0?= =?us-ascii?Q?Y/63ggsQ8sRLH/l3U2AAgPISujPVFv4r+rRhuyRXHWRz88955Fts/o9LBa5d?= =?us-ascii?Q?ABhyNsfazlfp+Rmnw0nPCKYkXTj70SS9y/uKhSYEtRCZ5C2f0AmZ79clpT+b?= =?us-ascii?Q?nxyF8KHk3//6VVT7QJdk0mTATJ6LRM0LjYB6IqFy8zWfXauy3bDtCFO/AX6Z?= =?us-ascii?Q?RxAckLPr/pu67dPDaYxtT7IHjcLm4Blr?= 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)(366016)(7416014)(1800799024)(52116014)(376014)(38350700014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?RyOS0/7AiKDDwQNvIUOUDXXCdcRsk59kjg976OYe+lEY7NX2PJUh3L/LQ1Yr?= =?us-ascii?Q?28sJJxCqbcntE6bXQIvaAQCFHBBzVGKkf7dBapHnbJ99jBAPbSFHhu6uKqjm?= =?us-ascii?Q?Hvi0rAYg8SEx0gn+JC6iDIOQDA/L5TAyJYrHLdvpAhFy0PqwdbAUBqM1KhF+?= =?us-ascii?Q?TcgFCUad2XaLxM9Bq0E+kev+XgySbNulJ3kNzb+8NExWm83ofuVRIOOBMc8l?= =?us-ascii?Q?o2AhLUEFUu2roLdF87rqGTWc48sXh4TzPyTJt24VnKBjNyG276ATuLU2NQT2?= =?us-ascii?Q?RUYrbZ2elQNOBnQCttcwZrgTJIm308CbuEqtkf11V6ykj5gnv1Xl1WP9xwQK?= =?us-ascii?Q?Uh6B0ze6bYXdqCVPJJvxqS0r5j3b+hlqLIWZR7ev7otfbTwcbPtfkzqkmvm6?= =?us-ascii?Q?iO49sVz8keL0Iv+Mdu0Bk+v2E3PVTfreKk5ighVBFepKDeJ2Vk2JmjuttC2O?= =?us-ascii?Q?wGDatpwdRTMEcrIn2W03luGwVyzi0zObL0YEh+mXYIp6awYZiSXE1imWMm8q?= =?us-ascii?Q?E+wFFXNU+469OQatIpvkFhWpbkLN96P5duRqnCYanXWpuNTctpqoeu0kXJnO?= =?us-ascii?Q?GnU6G8I/YzuYMXOgHbohqYRftRv2CZlBC7v9p6xoHI0DrccfKBgRq0s/8cSJ?= =?us-ascii?Q?N4pFs+nHZ2C9/yCNEXoohab8P+eliROnZ7gIXFOmVfDncu/Ywnkc+fjI60RY?= =?us-ascii?Q?g9eZVeNTaZu6pjbI0KXtD3uHXuVLpxZnXl00x9kyrjz+wlwf2U/4S+764y4E?= =?us-ascii?Q?XiedelwvgIiaaipJyIuAw7bx51JSEeUoTI9PdQ7UAzKSrV0OiwtbEGjalfHn?= =?us-ascii?Q?RQJuONKGx6y4584vLRPZfSuMxL2SpudOtcHCpqCXrqXfEOUJ/qOuYyhRoaZR?= =?us-ascii?Q?5OhcZQQcCD4gPiCY4JVnZIUCyCUmlmICCMkAWy/AC/3ikw8cA4kkR9pKJ9Xx?= =?us-ascii?Q?YUacYt5vVwwrSAqb2DQ/tlueia/qMKZDaISP54/nhLQxHu4qKdd2g+QJamfd?= =?us-ascii?Q?1rYeLpCJSntGQmCsEjzmlfngbaqDXH1EqNM4nzrcmzygImN2x7UQnofFL65y?= =?us-ascii?Q?xkS5+HfhHhIY6uq5CrNe6cu8Nae0SAy2BQKoi5JzjRT2i611UPKDdk7n/TxF?= =?us-ascii?Q?x49Dd8UTijd+HHENJhW1OXN0H47FcxG+9JwSlasGJSsfl1MGCWjd3FpW6jrK?= =?us-ascii?Q?dX3Es9eORn+Bo1svsFj8vHJHC/1fW653j71TC7aRL3DY+X9gfbjF9VKEPuNu?= =?us-ascii?Q?AdN54phPSY67DVu5hW1VevAE8IvWYvBKbXeXuiQD3vAZ8qi2eZjj+stwl/89?= =?us-ascii?Q?3Pza+6nSVRH8KywFuVuLfuh4Cx2wvduysRUSMI0Djg16dQo2wbys581/Wj6M?= =?us-ascii?Q?vHrloZBppjIMM6CxQHIikNsR0P9jnqsMvuDOo2khpU+AIHf5m8mushv6hr9b?= =?us-ascii?Q?X4oOm899vak284QChjEWGRdTZzH9lws+yuUI14eqkGhDheGlhtLPjMprRgJu?= =?us-ascii?Q?4wCtQoYWZB0pHlDSQ0WiDB+q68EsOx+Vq6PU/HTHFeLY7Yy19Aa89t4f8FWB?= =?us-ascii?Q?MdEkHmWRSL/7uAvF5tA=3D?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: f08961b4-f2bb-4fc8-77e8-08dd7398c2fe X-MS-Exchange-CrossTenant-AuthSource: PAXPR04MB9642.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Apr 2025 16:50:10.3684 (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: T+Y0Pfg+3YldNd7D7vFe+LlvjfHj6uegsP9myy64cwuPVibcdNH+mE2Jk5F+DJS811HsJ6STSCXbTO0GHIMHBQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DBAPR04MB7303 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250404_095018_382989_B933F790 X-CRM114-Status: GOOD ( 21.92 ) 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 On Thu, Apr 03, 2025 at 05:02:08AM +0000, Pankaj Gupta wrote: > On Wed, Apr 02, 2025 at 06:15:12AM +0000, Pankaj Gupta wrote: > >> >> diff --git a/drivers/firmware/imx/se_ctrl.h > >> >> b/drivers/firmware/imx/se_ctrl.h new file mode 100644 index > >> >> 000000000000..177623f3890e > >> >> --- /dev/null > >> >> +++ b/drivers/firmware/imx/se_ctrl.h > >> >> @@ -0,0 +1,84 @@ > >> >> +/* SPDX-License-Identifier: GPL-2.0+ */ > >> >> +/* > >> >> + * Copyright 2025 NXP > >> >> + */ > >> >> + > >> >> +#ifndef SE_MU_H > >> >> +#define SE_MU_H > >> >> + > >> >> +#include > >> >> +#include > >> >> +#include > >> >> + > >> > >> .... > >> > >> >> +}; > >> >> + > >> >> +struct se_if_defines { > >> >> + const u8 se_if_type; > >> >> + const u8 se_instance_id; > >> Getting used at drivers/firmware/imx/se_ctrl.c:320 > > > dev_info(dev, "i.MX secure-enclave: %s%d interface to firmware, > configured.", > > SE_TYPE_STR_HSM, > > priv->if_defs->se_instance_id); > > > You only print value, don't actual use it. It should be safe remove it > > > Frank > > No, it is not just used for print. > This variable is used to construct the device name as well, in 5/6 patch. > > Moreover, it is needed for other SoC like i.MX8DXL, i.MX95, i.MX94, there > are multiple instances of same secure-enclave type. > It will be used to identify the intended instance later. But it all is 0 now. Add it back when it really need in future. Frank > > >> > >> > This is not used actually, you can remove it > >> Getting used at drivers/firmware/imx/se_ctrl.c:347 > >> > >> >> + u8 cmd_tag; > >> >> + u8 rsp_tag; > >> >> + u8 success_tag; > >> >> + u8 base_api_ver; > >> >> + u8 fw_api_ver; > >> >> +}; > >> >> + > >> >> +struct se_if_priv { > >> >> + struct device *dev; > >> >> + > >