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 89C89D74965 for ; Fri, 19 Dec 2025 08:48:18 +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: Content-Transfer-Encoding:Content-Type:In-Reply-To:From:References:Cc:To: Subject:Date:Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=HCwvxclCXGTFJp9TMAw18xhw4yfw6lbTxFwAZ2WcKl4=; b=mM+VmDuh0NtKOlz8JAQMU6JSNI evo0qR25joWfJGqKuBRiFCgKtPC/nObAxEP0XxJz2BNXG2lzF6SWQR7OBzTeLWkStNR83Hcc9CUxW jr0sj5aJD8epEOrcoiuQB4rD+BaFzXWzDuZjciAGcrSe3pNZBIb0AKc03HAQEePB3edXbWlORwiIh f+eAxhZsop5L/gS2W1w/5/PXtO2wbT/yeVqLb1S985mHEqCzi3MjsJfu/sdbTxwdQtmGrAVg+bx63 WIuIZ25CffAj8U9mBcAqTd/mZr4Ut6rs8lVan8zoTF8fyz6wJsgTeC563PtPHkV9OOn+m+Ti1+vOR xXmePphg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vWW9l-00000009tA3-0eSm; Fri, 19 Dec 2025 08:48:13 +0000 Received: from mail-westcentralusazlp170100005.outbound.protection.outlook.com ([2a01:111:f403:c112::5] helo=CY7PR03CU001.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vWW9i-00000009t9h-2v8J for linux-arm-kernel@lists.infradead.org; Fri, 19 Dec 2025 08:48:11 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=kmqDNGBlD+OpSsBsofvbGgfD5Iz1mTvV12g8vruJnxTRglHBxmUHnLkbrpcmyccxsgHbLIn+/hl2NFiyqLWuy9MAUKOTSHfeh8pawtICTMUXS8oTpbzZbwc5UsQbqz0Ur0iZ2a7NiswyN9FIZlCBa30z06f6yfxurgSdvkSz8Su4DZJLxR72ZlFoCzsuThtUtN0H09OJeeAJUMWwPp0YbYfY970lxrDDDXj7xS3UY7q8CqJ0leUN+CdDaJX4/0i2FDY8uKDdRvOR4AN0r/mMXxjZ5wZtR2IXTnRD7VkV7+8aEmxNvRBA9lo2Cte8uE/5eXm/yJ2AYZCWapx6TLw5FA== 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=HCwvxclCXGTFJp9TMAw18xhw4yfw6lbTxFwAZ2WcKl4=; b=hATR+Mj/gaprK0YC5AOMXvl4zPsokWueDDNG4pALlrGBaDg3kOIgj99Jhhr2026bIaabZd9QuS3mzzCQwuGQE24IM4gZdJa403O7HRXAYJpEHxyiVjsVmOKZ+1uSHs6Ae6L0JNuMN+ZySiDYz6HzS0UKo5SNgLD6rHog4GnZU4SoJnFUW5ugIhntvr0LSF3xvsB/Ypy9TycCKPuRl/fRB6C6gSDvEV338NjVu5zqqbh7lgr9Z8B1PXpmES/1UMRdt0VV3senIxsRq2AfpkBq+mxhl3O6AselZuw1vNZ5BPqHmghetbIyZNl2snaHBRoleq0jVn45Zv6rRFvSPZrrRw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=HCwvxclCXGTFJp9TMAw18xhw4yfw6lbTxFwAZ2WcKl4=; b=KttddGRduP6h8jG24aoouujsc5xDCMslfI+yG8p0JjP67rWrdOc2mN2N3LtdEnf4Npb+yKJZhKiPRET2ZseVgRMz+XRR4cDtAuNTmmsRTaJ5NTQoYsOVWNmUwOW+eS67Ai2r9LuogSsrQNME0KcfD7gQDF1ZynEPZsZzmsOXavdu7zLCkg0JchCASG13Pq3yi1i/Z5TPAxLAWX/90kkFCouFVsH3TGoZMEtUQF+b1HifzzZnyAo1DWvWtEFXGt5+R1RynHGWqYqJGFplS49Mb5jqPO8AHLn83kkBTYnZPWbztaXF7ROxpGvfPBnbFvD1GmQrG58/33oiEuttJ4B5cg== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from DS4PR12MB9660.namprd12.prod.outlook.com (2603:10b6:8:281::6) by CH1PPF931B95D07.namprd12.prod.outlook.com (2603:10b6:61f:fc00::619) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9434.8; Fri, 19 Dec 2025 08:48:01 +0000 Received: from DS4PR12MB9660.namprd12.prod.outlook.com ([fe80::f962:80d7:e25:bf3f]) by DS4PR12MB9660.namprd12.prod.outlook.com ([fe80::f962:80d7:e25:bf3f%3]) with mapi id 15.20.9434.001; Fri, 19 Dec 2025 08:48:01 +0000 Message-ID: Date: Fri, 19 Dec 2025 00:47:52 -0800 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH 1/5] firmware: smccc: LFA: use smcc 1.2 Content-Language: en-US To: Sudeep Holla , salman.nabi@arm.com Cc: andre.przywara@arm.com, lpieralisi@kernel.org, mark.rutland@arm.com, ardb@kernel.org, chao.gao@intel.com, linux-arm-kernel@lists.infradead.org, linux-coco@lists.linux.dev, linux-kernel@vger.kernel.org, sdonthineni@nvidia.com, vsethi@nvidia.com, vwadekar@nvidia.com References: <20251208221319.1524888-1-vvidwans@nvidia.com> <20251208221319.1524888-2-vvidwans@nvidia.com> <20251209-curvy-walrus-of-wonder-dbb178@sudeepholla> From: Vedashree Vidwans In-Reply-To: <20251209-curvy-walrus-of-wonder-dbb178@sudeepholla> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: BYAPR11CA0100.namprd11.prod.outlook.com (2603:10b6:a03:f4::41) To DS4PR12MB9660.namprd12.prod.outlook.com (2603:10b6:8:281::6) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS4PR12MB9660:EE_|CH1PPF931B95D07:EE_ X-MS-Office365-Filtering-Correlation-Id: 3bb78f40-f58b-4c1f-e034-08de3edb50e6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|1800799024|366016; X-Microsoft-Antispam-Message-Info: =?utf-8?B?NDFzUzBXMXZWNnIvLzhlVWlYcW1XQU42TVYwREpuY3dSbDY2UGpFc3NuT2pk?= =?utf-8?B?aitNNHppc3lBR2xkMC9uMm11ejFwbWE4azg0dWxWaEZtNStxRWQ3NUNTMVRU?= =?utf-8?B?VkJ2Tks5MGdGb1NsU00yWlhQWlkwa2U2dkZhdFlOSTVEMHhUK3pzNTlwKzhT?= =?utf-8?B?MUpjRFRWVHFmQXFtcWZIb0pwQ2Z5QUFqWk1VMTl2T2VKNVltcWtVTnYzdURa?= =?utf-8?B?MC9IU2RtRW9CMWJLRXBoSkpNOG1uVWdsbm92QUpGU0V0OEp2V3RBNFpyNGNE?= =?utf-8?B?UFFKL3k4UmNCc0VVb0NLY1I4MVJGbFk3VGNJKzJudnk2eFptVG1nNnZRWDkv?= =?utf-8?B?b0hoRW81ZWQ2aytJRW9VOVN0eGlFSGhKQWRKbmU4WkExUHdNaUh1T2EzVUlX?= =?utf-8?B?Mmp2UXpkWm5tdFd0SzI5QnFoelNpOTlJdHA4SnNmTEpHaTlmeTdDTHdqMUhU?= =?utf-8?B?WUtzUklWejRPYWo0RFlnRFRoMUc1YTZuL3J3NE5nWXJPZmlFVVNvNG04SDRq?= =?utf-8?B?VzN6d2RQL2JtVHNENkxpaWNmeTIwYzVmQmJlVDFqVGpvYUdQRzF3OG4yYkl6?= =?utf-8?B?M2YyclMzNkhwUDBxcDFyUkJJb0VFWktFYW03Qm1JYjNsaXl6YXBFNE5lVDBt?= =?utf-8?B?UFU0NzYvMDMzeDZZaHVDRUNKZHBteEFZRXc0bzlCR2VHMnRSLzhERWE0bzRj?= =?utf-8?B?a2NLZG1XR0xqMzdNRHR4Yi81OUNhdk1DR09ZVW9EV0xPcFp1RG52dFM0UFpz?= =?utf-8?B?SDcvVWRDd2hCVS9TS3dyby9kWVZnd1AwVGh5SUk1TFpPNFZqdktoNU4vYlJU?= =?utf-8?B?Q2ZXMlhxamdOOGtlMzlBWm5SaHdDQWFhZVlBK3QwR1pQd28wSDY0R1k4Zy9m?= =?utf-8?B?aGwxcnFLVTYrVWh2cmxyU2VyUW1mUjhRSmV3SXJoZm4vOEZQcnRNL2cwYXZv?= =?utf-8?B?TWVQVmpLclhiS3paRzNpVlJlbGFKY1d4OUJSZDllRUgzOURadjVDY2FxbXBG?= =?utf-8?B?blJJQWt1YlFjRFdZYUM5S3IvRmo1YVV3NDVCMndZSStBRDJOOWlFVGRFc3VM?= =?utf-8?B?WFhKSEU2UVAwR3FjaGwwMUFQbWhBWDY0Z1M0T0w2dXArQVhocnRxdHpBTmhE?= =?utf-8?B?NWc0eEpwRG1ESDNUSzBJbnFGWTE1YWlzd1grc1pPWk9XS0F6NFBsQmpNTlg2?= =?utf-8?B?WWpvQmFPVzY0SlFTdkNxYlF6cXNMYms0OXVTeVlSb3UzS2NMRlp3eC9iYUxj?= =?utf-8?B?cUZMaURVZ1JrdlZITlNKRllSSzdoZTFaY0x4NjBXWWNmNFdFTVh4eTM4ZndM?= =?utf-8?B?WWpYUG0wMEE2NWpGbG5yL2hOOG5iRVJ4WUhkcGVSd0J2cjU4SXZOMCt5Zll3?= =?utf-8?B?N1Z1Zm1ZRFByZ0lYMHUwcjJTd0pNZ3JqUHo1RDl2bVpwaWtHT3E4THJER3Iz?= =?utf-8?B?ekFNRUxPNTc2QUdDcTk2d2RNZWpOMVQ0OVozb3R6Q2xsUFliUzMwRjdyQzNJ?= =?utf-8?B?R09vaWtnQ3RrbUpmMUdUYWhQcUFCY05iaEUwZnE3NUxocjcvZE9vaVdSVVA2?= =?utf-8?B?OWxYYTl5eXdxTFJPYkxDek5lWUMxOWNCWHdGbEpjVHFMNktLRXFmQ1BOQkhk?= =?utf-8?B?NGZ2RzJTZzNVaUtmN1FFVUhhejh5Nmk2SVQ4bHRtYWRVSUdIMHNFRDJlMDNx?= =?utf-8?B?cXBWYXJjSTJzMXZVeTdycEVUTXRwck5ORGRJSkxySHVsWENyVHhzTDU3OXZU?= =?utf-8?B?WCtqU0lSMktaTGpFMUdCM3lET3Q3WWVjZURvSEp4L3M5bkZKcEZmd3VaYXdz?= =?utf-8?B?Nzk5cTg1K1JOS3Y3ODM5cTZTa2xZYUgwK2hidVorNVNHVHVPQXhWNDFmdVdx?= =?utf-8?B?RkNyc1M1ekduZnU3TlA5N1pTYUpZMXRXVzhFc3hPZXlFcE1WNkd6WkhyTnJk?= =?utf-8?Q?hX680bvL2pnUqLREIHbCp09n/BBFskSU?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DS4PR12MB9660.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(376014)(7416014)(1800799024)(366016);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?bkV4dHgzMUhFNUM0cmNFZy9mdm1TNVJtQXVzM1pDL291MEtkUU1EdHA4ZERq?= =?utf-8?B?eDZFMFhKcnd0Z1dIT2FkZ0h5Z01mR09nWXBrMW1nRmZxWDZ5RVpZSWcrelgv?= =?utf-8?B?bTY0ajA2UTJ0RXZBWmYwT0JnN05WeW1jRlJwcFpZN1RqU250dnRocnNPRkgr?= =?utf-8?B?UnZONCtiaDdFUVEzVFVCOVo4ejBRaTQvenRkajFycmVvaDgwcTdYcDh2V3BP?= =?utf-8?B?ZjFFeThRc0l3aitRZDVaeGpEZTBkZXFSZzBTR05HNk10T24wK2YweEtKR3pz?= =?utf-8?B?RFhoWWpwMHg0dGovamo0dXZqVUgreVI0bzZpa001S3BVTHdsRnh0QzV5UlVx?= =?utf-8?B?TXBoRkpsd3RJUy9UVWk1UlNrVEcrL2JYUDlkUUdQYmRWY1hyK2xqN1lvbDdq?= =?utf-8?B?eFZ6YThGODRoa3pZbmtLV1NBODEvb0tsRkQrWVZhUnZBVTV2bW5QT0xhdEd6?= =?utf-8?B?Y0xucHpZNXBsTDRsU3RhR3Rncy96Y2w5UkhuVlVGa1FEWkVvM2NJdDlrMmtU?= =?utf-8?B?a2hmencwWGQ1R2lmMnJubjVxTGF0bnlmQkp5ajJFZ2xFSmNsb2pNMEdXbkk0?= =?utf-8?B?VUg2K09rWGVONmxsM0g3bWhrYVpGa1UxcFlOQmF4QWx0NW1GQk1WMVk3USth?= =?utf-8?B?eGFSY3FZdEZnQVdXYmFCeHY3M1ZXbXZkQ1U1U2xrNHdSV2ZFYm12ZVkzbTY1?= =?utf-8?B?TjhBcmU4YjVLdC9QVUVyMTVsYmh5eDByZ3BHSHJUOWNRdXJabWYvVW1SeUVq?= =?utf-8?B?SllTSnBzeG9jdmtwSzRNbHZ5WjY2enZDZUtnNDArMFFvZmhGZ2FvaDg5MjBs?= =?utf-8?B?NzNOMWtqS1J6L1R3b2c0ZGZHNmxSbEloaktmb3k3RWtzWUZYVzRKKzBySXow?= =?utf-8?B?RGZkR1h2ZGxuL0VXRjNoeTlWWm5pVTRsZHpwSFkwRzhhMTFibTlhdW80NVBy?= =?utf-8?B?YjM4aXlKVkExYzZ2b1E1bHFHUDhKVTlyeldTMllJMzBpVTZ2ekt0MklUcnRm?= =?utf-8?B?SjJsWUo5T3BqNHFEMDJxRTVPSzUyUk1qcTFHN0Y2TWF5YTNxQTRDblBodHdQ?= =?utf-8?B?M21Ya1VWZjhYbm9CemlqTUdYZlVKUmx3U1FQM0ZSUmpOZnlGQWJjTkFtV0No?= =?utf-8?B?RWZTdnpKYWpDaFdHOUo3aXlYdXl0MExTeUtIcTZsZE9FUmJVMEUrWHo2bkhH?= =?utf-8?B?eVQzOCtrVVZ3WVRNdk8wZmdtUUgyOFUzdlJJeFBNclJvNHdvSGZ6NVliQzJa?= =?utf-8?B?MGFGbGNWMFlHTGNHaG52SktFeDF6WldkSUMvTmxSdnA3ZEJOc3BWUUxnUDJq?= =?utf-8?B?NnNrcmJ0dHV6YUZSVU02dE1icStsMXdSN2RXZnhWeWkrS09lNUtsRDZVSk9V?= =?utf-8?B?dm5yTzRCMGtsREN1aml5UmJFcnlmZW8xdGZzZ25taWxRWEoybDJ0V1N4LzVY?= =?utf-8?B?VEVzYlRpbHR3NXdrMVkzS1FtTGdpYUkvK2s0QnJydzBYcmdkUUtPNnNtdlZ0?= =?utf-8?B?NjQva0k1ZWU4bkxMQXp3VzdRcWNBc2o5dWxDR2tkc1NQNDFjWVNBa0M5NHpY?= =?utf-8?B?YVUwWHVDTkowUS8zSEh5RFh2L1RkTXM2MjlWMmt3N3RwdGFMWnBLQ0doaFpT?= =?utf-8?B?OXVjTk5wNW9qeFo4YjdoV1RacVFqdzdpRVFmSEhQeUxORTNaa1VtejBWWkxs?= =?utf-8?B?dVgvOU1udEZsUk5FamFhVUhGdlRUbnV6eHJtbkJKRkkzUSt2K0RiQldwR3Mz?= =?utf-8?B?cjc4T0w4Wm9EbDQvajluZ3M2ekNyWXZjSEJvZnNzaEhwOTR3QlF3SWVIcndV?= =?utf-8?B?RVNPOXdWQk5Ld2x5NnFvb3VBb1ZMWmhOTHZxV1ZiWWRVaFVMeVl2cFpIZlpI?= =?utf-8?B?NW5tRXB2WGFGaFlEcndSVjJrQjZGaDIyWXhTeXNIWnBhOXZyNEdiOWhOUDBH?= =?utf-8?B?WEZ1ek1TVXJRSHdHZXRCYmFNTUY3Nk42ZWlmSHBOLzZDVmJpYWFsZGc5a0tY?= =?utf-8?B?RVMwMFJkeXZkdWlxeExYS2RRN0JRdklkK1dOZlhZREZxRWpsMDM2RkU0ZHpU?= =?utf-8?B?ajJHa0IvOUdSVDlEekdTeThiMGU1ODZKalYvenQ5Qm9FMHFVWW5Sem1PMk5C?= =?utf-8?Q?VrT7tXoGM9reXOQi7U+4yYskk?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3bb78f40-f58b-4c1f-e034-08de3edb50e6 X-MS-Exchange-CrossTenant-AuthSource: DS4PR12MB9660.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Dec 2025 08:48:01.2214 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: OKtkeAJYkvEDrTrOdG5N9lgiahrivS/XJ2hl5D6Os0l8mfClWBLw7BXRwVJaxVJ0xZbG8qPhqWLwPL3FAxwVZQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH1PPF931B95D07 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251219_004810_749086_696CCF92 X-CRM114-Status: GOOD ( 14.82 ) 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 12/9/25 03:42, Sudeep Holla wrote: > On Mon, Dec 08, 2025 at 10:13:11PM +0000, Vedashree Vidwans wrote: >> Update driver to use SMCCC 1.2+ version as mentioned in the LFA spec. >> > > I would prefer if you work with Salman Nabi and get this incorporated > in the original patch by providing this as a review feedback. > > There is no point in having this independent of the original patch as it > is not yet merged. > > -- > Regards, > Sudeep Thank you for the suggestion. Hi Salman, Could we come up with a strategy to combine the LFA driver patches? I have been working on this recently and I would be happy to revise all the patches so that we are followiing the specification from the start. Please let me know if you think of any other approach. Regards, Veda