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 8B5E1CD343F for ; Thu, 7 May 2026 10:54:31 +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=z7YCVXkqMqcAI5NaZaHUD0IQSGDcgmMCEFtuT16OM/E=; b=34LzKKopASfVG5+OFjvE8epFoc nddXc1ctMfitcQXRc1OvbcuQR9MHA1irvSJvIzem0+dlPbuhMmykU0DvMOfaQ8jv6j/FROJh6CaaQ uTocxOf5m0ZlTVkc7jDb905a6OrpcZmDFSK7oPh4L48T2xmxNB9FOzLfwe5ljvomZaMLSEgHamfPA QEO1LvwoCb/bR5piM1x1zPmzTXfs14uuzin64HXYp+RMqsu2GwhgYV4KwpWB59/pKBzHI6Mhp9mWQ bLECT57eWsZmtFblQsG3kg75NEL9Fp/msnDyN3mRunNxSV1ZQlUIJKoFFkYJkjI3/JgZbBuqbh+LF TCy/7+4g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wKwN6-00000003YKP-1qPB; Thu, 07 May 2026 10:54:24 +0000 Received: from mail-northcentralusazlp170120005.outbound.protection.outlook.com ([2a01:111:f403:c105::5] helo=CH5PR02CU005.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wKwN3-00000003YIs-3Aje for linux-arm-kernel@lists.infradead.org; Thu, 07 May 2026 10:54:23 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=NTWjfRX8uwjGzZYD/NP+Y1LYDbk1KjQOkKSsQ7/arsrnQxA+6EWNHisgUi9PFA+bXWBMBHJ/vfquaBN4E6CxNwyNoJN5ssMQQS7bAIqG+aG7tmHN0xmBgj6iFfMTP1dmCvHXZvVkwF5LHeXrFNVmKfeOteins+4J5/F0RT+XArtDDjnTP6qNIBsdPP6Gcy7o+PNLaufyoZG1bfakcd8q8qS6BHIsGyXNw+cdVbAr/zJjgW0DFcpQMvBNT9mYcXrsQW0lfVKe/tmPmVKi5fDonCFb58jtaYomUUXtD/5oMAxc9Ek0E16QWWpQviawkH2jPf5sZk10yTuuyWgu8esm9A== 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=z7YCVXkqMqcAI5NaZaHUD0IQSGDcgmMCEFtuT16OM/E=; b=byziijNeDcCqxjW4lIBdipYd6UM244s9cyulxPkk28dNYn+5ZTdOqSRk1UUeIi3Sw9tH53Qo9vRPbKA/xxR/OysP+rr+gHW71cv5UWyEiYZbx+dWBWfGvjA2eV+vAMwO7cB56gTNh4cruO0BCGy/tFygaW/AkKry0sHaF6W6s+HEsd8rbWPclksqlxChAmrJh5P+Y8lHNxa5I8bD0lXK+XrNbkFKVcPIjPVxPs8G2Jb//DD+pu8h6dFYdSBZBNFBjoBbEwLbARQi3PddQdrHf8ocF2ALY0VoXLbB9I5622R1iHMe+xYMeNFpTLnwouuxbRz/bRdkMYySffATsdE23A== 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=z7YCVXkqMqcAI5NaZaHUD0IQSGDcgmMCEFtuT16OM/E=; b=Gdiu1tPSWhlpXtvWZBSlzfLdGhh/zCHr2h5djFQrTh9jxUfDDCFzM1rvvN6wQciwPlg1Kg0sBNYUxnHBtbYBuy+sVp0LdKKaa6lPfmhdAwq3+fMlQ3b/mVk/XnCIn5hkXsjgnKDkDktxdweK92ZJVuaYtcUOIF3+p0MlROVTFInBzI6tczSGoILSreKGDSg3StfWN0+r9ee4thnqLDVIsuKi/nCI6Lsp5VJxe+4THBtra9Jgtpee+kZkvcsZmg0pYxwdpiMsET42chYC1mLAC5C1G87/jE3JQJ6uvjsaFKKYx170B2p5SkCCi/i4QKnaWTBLHLx2tikpyDDcaeTYrw== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from DS2PR12MB9750.namprd12.prod.outlook.com (2603:10b6:8:2b0::12) by DM4PR12MB8473.namprd12.prod.outlook.com (2603:10b6:8:183::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9891.15; Thu, 7 May 2026 10:54:13 +0000 Received: from DS2PR12MB9750.namprd12.prod.outlook.com ([fe80::56a8:d6bf:e24c:b391]) by DS2PR12MB9750.namprd12.prod.outlook.com ([fe80::56a8:d6bf:e24c:b391%6]) with mapi id 15.20.9891.008; Thu, 7 May 2026 10:54:13 +0000 Message-ID: <49a68039-3a59-4b4c-acbd-0fa917d0e456@nvidia.com> Date: Thu, 7 May 2026 11:54:08 +0100 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] firmware: psci: Set pm_set_resume/suspend_via_firmware() for SYSTEM_SUSPEND To: Manivannan Sadhasivam Cc: Bjorn Andersson , Manivannan Sadhasivam , mark.rutland@arm.com, lpieralisi@kernel.org, bjorn.andersson@oss.qualcomm.com, konrad.dybcio@oss.qualcomm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Konrad Dybcio , Konrad Dybcio , Sudeep Holla , "linux-tegra@vger.kernel.org" References: <20251231162126.7728-1-manivannan.sadhasivam@oss.qualcomm.com> <4ympdtnpqrydnjmapuswsnig7ymuopy4kpxqclyxnoaqgpdmxl@eywcfbu3avtg> From: Jon Hunter Content-Language: en-US In-Reply-To: <4ympdtnpqrydnjmapuswsnig7ymuopy4kpxqclyxnoaqgpdmxl@eywcfbu3avtg> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: LNXP265CA0003.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:5e::15) To DS2PR12MB9750.namprd12.prod.outlook.com (2603:10b6:8:2b0::12) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS2PR12MB9750:EE_|DM4PR12MB8473:EE_ X-MS-Office365-Filtering-Correlation-Id: 1718dc01-b756-45ec-78a6-08deac26f9be X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|366016|376014|7416014|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:DS2PR12MB9750.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(366016)(376014)(7416014)(56012099003)(22082099003)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?NTRoM1BrT2VUZVJkbmFlSy8velVGVHRJR0tib3lFV2pqOUcraTVIMm16RWor?= =?utf-8?B?OVIraXNTT1ZScndGeHo5eTRIc3IyeFp3c00xUytXSFY2U2w2dGg2MnVKSURw?= =?utf-8?B?TkRVTWc0K015M2VobXV4M3VNbHdwQ3lpNGtqMG44YTkxRmdvTXZDSnIxNHd4?= =?utf-8?B?NllEY3Z3THpIZ29XeVpFTFFob1BkZ2xXM1FMMEV2WDRoVDVlUU92RUhqVmJF?= =?utf-8?B?ODNEQ3MwN20xK01RSVU4WUFmMEJIN1JoZ0pzN3FOWlBMeTZBRUkwK2lwclBi?= =?utf-8?B?a0F1Q3ZpOEd5MlF5VFVHdkpJZVMxbzlaL3dXMzRQRGM2dTlwS0lkUEdsSDlq?= =?utf-8?B?SGk5YW5KRWZhbUg4TlBiNUtDUlcxUXhGTlRFSUo0WmF3U2RUS01pQ3ZIL3Q1?= =?utf-8?B?Um5DUk9veUhmUU1wS1BYUHJ5M0tvekdwK2ZkSHBsbVY0TUhoQkloaXJkZk9H?= =?utf-8?B?aitNRjgxT3kreko3cHFzT2E5ckVsVlZCbjZWZXIyYS9HZ1FIaGJ1WkROY0hp?= =?utf-8?B?S3NXYXdiYk1rRTA0VmpZK0MwTkRQcUVTcmJPamd3K1RBWkRta2pOdHY2enlx?= =?utf-8?B?WlRrTUtLS3RiQUJqb0QvUDBFLzlqQTRqZDhia0JFY21CZWNrbTB3OG1yYXdz?= =?utf-8?B?cHBvMXRuZStUZzRvdFcvQmNxNlFTN0grbTZKU1JIUWUxbWtjRVJrSlN6elp5?= =?utf-8?B?Y2FDaWpFZWt1bDZCcThIV05CSytEa0ZBVDlscjhQTXZqYjZVSVl1cGlFcEFX?= =?utf-8?B?eEZtdHJmT2lyRnpZTllOTzcyUU9ETXYxMmFtbjFrWVNCSklTcDY5MVpUMjhF?= =?utf-8?B?YUhxdVdoais4MUNHRmVhWDlsQitmRno4eDVoVVpmYVRoVzhqNHpXOXE0NWRY?= =?utf-8?B?aTlZWXljK3pwYjFnQlJ3NWhHdTRIL0VZakJaaWgvQSsyVTZYdTAvWmdpZWVn?= =?utf-8?B?cVRpLzFvQ2lLL04xNWh5ZFVpSWlUbjc3VEo2akRqZklwTGg2Vk5rRTA1L1ZY?= =?utf-8?B?N2x6b3R2STQ5UEVUZlJrV3B4NlhVWUwxSy9pN2I1eXNWdXgrQXlXTTJ3MWl0?= =?utf-8?B?MmZ2Z0pVQy9rTVBFemhLaTA4NlQyOHMvaE9aRk9sNTRTS0owVWdLc3N6TVJD?= =?utf-8?B?Z0ozeHlwRnF1dnhhR0lRMGRJdW1WL3BrNEJNeVlPbW5TSUt1NjROUXpWM1Jx?= =?utf-8?B?bkhFS1pCdHpBSFVGTEkzYlRiMHcrb3BGaWVKRkFoa0hTVC9raStsYmVqci9E?= =?utf-8?B?TTdEU0pLa2pwSkZNeVY2R2d1RU9OK2liaVIyK1lNL2RncUZvN1psVURma2xt?= =?utf-8?B?TXhRaXVCSkNaSjFId0hBc1JnV256bW1Kb2N2TzR6eWcxb3VXS2NjMVdkc3JL?= =?utf-8?B?ei9YdmQ0M0Z6RmIzQ3lWWDllSncrWXRSZzhSZWVReTM0MTZrMjMvdnd6aVI2?= =?utf-8?B?cXhhbE5VNmxBRGg4dGorQmZ4Y3BuWldDajBEakpuOGtFeUQxSnMzYXZFQXZr?= =?utf-8?B?ODlNelFXUVU4YXdsck4vTmcyWCsrZWJCejhxekFyWjB0d005VjM3VXB2emh2?= =?utf-8?B?WWI5TE5tREN0cmVCZlRjRi9zQmlXdFVyZUNIWkxaL29kaVJEaFlVMHUvaTBU?= =?utf-8?B?S1V1amhYNHhranVla1VCMVNzbUk1M21sWUY5T2FhOEZNMlBZMXVLS2l2OE5X?= =?utf-8?B?VU1UT3Vwc3hzd0UvZVlzQUVEQjh1OXNmbEJiWktwcE43QW43OHFGeUVseXBl?= =?utf-8?B?YmlobTNhd3BibDBTaDVTR3ZNK0E4bE5FVVozZTdKL1dFL0hQVjRVdUFNRTBJ?= =?utf-8?B?YzZBbWR3eHdxRktxOHJySWFITGk1blZYSWw3UHJvR0lRb2RWVmk1U0lnbisw?= =?utf-8?B?SFdqRlp5dU5CanlxQmtZTXdoa0tZaGhQdVZ3M0YxdE5tcGRlTkNRQTRJRTdz?= =?utf-8?B?V0l1WEJXV0Y1NGlCL0F5bFVUeGtiUmNnRGEwL1UySitsb2Y2dWtGUmFnT1pm?= =?utf-8?B?emN3TlhZbndYWldjRDNKdTFzUWdJb1V1TW1LSVkwZnRSUjBmUHdPNGpsOEtF?= =?utf-8?B?WTN0cnBKZE0vMDhleWRSaXp5N3VPUWs0NndyS2kwSit2ZkdwSjl3cmdJQWh4?= =?utf-8?B?RDczNndCbUkySFh4ME14Q05kVUZkcmFSOGVDU0dKeUZWRzZWeEhMYnhCcGU0?= =?utf-8?B?VTlTeG80dnNJK01FbklpZnZ1My9HZzN1VXhxdk1GSURmMDVuR252VUdoR00v?= =?utf-8?B?Y3pyNHJ3L3BwMlBoWVN3ZTFuRlY2cDRUUDZtSVdxc2l5dzc2REl2SlV0blpn?= =?utf-8?B?enBRVVRPMGNlTGpEMGFBdlFqTEFsU3IybUJvWUEvSHBkOTg2UzNtQT09?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 1718dc01-b756-45ec-78a6-08deac26f9be X-MS-Exchange-CrossTenant-AuthSource: DS2PR12MB9750.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 May 2026 10:54:13.3935 (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: ofb4KfB4iWmsLiI0Ik50z2UNDMIO4cOIkweUSW4Rqz9+Q9d8HFOndAmohceuMv+Sm4/PqVMqIWcjyMvcaJov1w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB8473 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260507_035421_817847_D07B7B3C X-CRM114-Status: GOOD ( 17.50 ) 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 06/05/2026 18:18, Manivannan Sadhasivam wrote: > On Tue, May 05, 2026 at 02:47:08PM +0100, Jon Hunter wrote: >> Hi Mani, >> >> On 06/04/2026 15:29, Manivannan Sadhasivam wrote: >> >> ... >> >>> Sure. It makes logical sense to relate this API behavior with the state of CX. >>> I'll send v2 with the updated commit message. >> >> Did you ever send a V2? I am not sure if I missed it and so wanted to check. >> > > No, I didn't. I had some offline discussions with Bjorn and concluded that it > might not be appropriate to set pm_set_resume/suspend_via_firmware() for all > firmware flavors that our Qcom SoCs support. > > Then I found out a limitation with our Root Complex IPs in exiting L1ss if the > platform is suspended. So sent out a series to fix that and that allowed me to > get past the NVMe issue coincidentally. > > But since this patch applies to other ARM64 SoCs, it logically makes sense to > apply it IMO. So, I'll leave it to PSCI maintainers to decide. I am not sure I follow the above. Sounds like you don't want to apply this because it may not work for all Qualcomm SoCs, but regardless of that you will leave to the PSCI maintainers to decide? Anyway, I have resumed the discussion on the original thread [0] because this has been broken now for the last two kernel releases. Jon [0] https://lore.kernel.org/linux-tegra/8d8b2244-2bf0-48cf-8fb8-9e47e197a62d@nvidia.com/T/#t -- nvpublic