From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from CWXP265CU010.outbound.protection.outlook.com (mail-ukwestazon11022081.outbound.protection.outlook.com [52.101.101.81]) (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 106CD2BE7D1 for ; Fri, 12 Jun 2026 16:07:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.101.81 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781280451; cv=fail; b=URoybH+VxXHxwlskkXW8xuF2xZCZ/LJD8pxeN2jV86ROq+ovFM1+8LsvYK13OA45Vib3vKsOZGujUB6XCzfXfWZUNz74ofDqlVXqlk2oqcrgH+28KsMrxzYOt5Cd42QTIsg0/OG5vkU3Oj2tJ3HMibWwuKCju8AVd5hb3Xg5U9c= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781280451; c=relaxed/simple; bh=8np4qMgQ3JTvs70cRYdxQTOHLZTw0A30fQwUiyWNpr0=; h=Content-Type:Date:Message-Id:To:Cc:Subject:From:References: In-Reply-To:MIME-Version; b=eU68g50CAv0HfYuBZDYOi525ibj3nN7Cm96fA4hteTZfvLzrezQKQ4IB3Zg3S5t9eaZ+xK1R1AtLtm0J/SFYAj3exvNIBCwyAkH9QlfVs/YSYTS9IIAchD57Dk1M3qZLQRB4/tLLGmEtRJfchy+uF7OUzOyYEDXpQ3PgJBGXHOM= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=garyguo.net; spf=pass smtp.mailfrom=garyguo.net; dkim=pass (1024-bit key) header.d=garyguo.net header.i=@garyguo.net header.b=HEu5V9l4; arc=fail smtp.client-ip=52.101.101.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=garyguo.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=garyguo.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=garyguo.net header.i=@garyguo.net header.b="HEu5V9l4" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=vTLPi4JFAcJn0MkbJ509ae8BoRjEH8C3jW1BWXtheRF3Ck86HhgiRs5KJrTw5YivT6tK8Ob6n0obmCFmEMiuPaq8fyPbC/354kvPcS+4sgqPO9QXEemZg5OUEsvGcGxsO5lSSHbGdk3zB2avoCuqpNco7vTwH/RQrkqQMWXDuFbYt4czqXL1veTnF0L//NKmmKwWpCIOURCiGa/IW2RnrzEl4j/gX2zS/onS7t+54XTV+Nw2Ccf9is3QBAq841VVr8aIG0BsOlKFNImELAAGNjDihoe5HxACEydCbQRYEQ2yjOYt4losat/p+T1DXFHNEfqwjc5E9ZFA+tGCA17jyw== 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=TDSmHUu6rX41+GGpV73BZb7BDV6fMl+CB/oBVRNapi0=; b=PPnJkv5iSiQP+uRYIS8kKTRNqMhbHn3dFrjHCo1G72g2/B2x5lzZZcrDhzSpf7Ux+xTTx3W0n5UTfcpKmR0VUHSKxUNQVtTRizyUFgFlTfYr3azSL/eVkMHhDprz986i/WJBZvd3QAjicslfTIKeezGqYv81OhHG3cLUepAoKJbMPo9aRWcZHie9QX53/R1Hn0w/MOyExuG1ZHwXw92ovmhPYZcDviYfat6abiiIkfivnQXXx0gwTnElJCo8/ylsh/zK+wagnCGlmh1e9X4cVa4VP4s9vxe/4UU82r6Tgi6Hk+UiedepDf8bUJ7/MI/+BZoXtUhYlz0OjWODcCN0og== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=garyguo.net; dmarc=pass action=none header.from=garyguo.net; dkim=pass header.d=garyguo.net; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=garyguo.net; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=TDSmHUu6rX41+GGpV73BZb7BDV6fMl+CB/oBVRNapi0=; b=HEu5V9l4cQpvx4CfuK0VsR0TJ7752pUDDC9hwYXQOkrYrLoG4rZioUlMMOBSMUVeDIQ71kCIufdgU3lltWgrWMsDHoXsG/FWdKbbCMDPJBvtQCJ4gvijcTwj3vTKxKsbm4kYaAecwQHdTTxHYuvbuPa6DlSIM7ArGCUEJPrjlhg= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=garyguo.net; Received: from CW1P265MB8877.GBRP265.PROD.OUTLOOK.COM (2603:10a6:400:27c::13) by LO0P265MB9226.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:4a0::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.113.14; Fri, 12 Jun 2026 16:07:26 +0000 Received: from CW1P265MB8877.GBRP265.PROD.OUTLOOK.COM ([fe80::6c9e:93c8:10db:e995]) by CW1P265MB8877.GBRP265.PROD.OUTLOOK.COM ([fe80::6c9e:93c8:10db:e995%6]) with mapi id 15.21.0113.011; Fri, 12 Jun 2026 16:07:25 +0000 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Fri, 12 Jun 2026 17:07:25 +0100 Message-Id: To: "Timur Tabi" , "gary@garyguo.net" , "Alexandre Courbot" , "dakr@kernel.org" , "John Hubbard" Cc: "Shashank Sharma" , "lossin@kernel.org" , "boqun.feng@gmail.com" , "a.hindborg@kernel.org" , "Zhi Wang" , "simona@ffwll.ch" , "tmgross@umich.edu" , "alex.gaynor@gmail.com" , "nova-gpu@lists.linux.dev" , "linux-kernel@vger.kernel.org" , "ojeda@kernel.org" , "bjorn3_gh@protonmail.com" , "Eliot Courtney" , "airlied@gmail.com" , "aliceryhl@google.com" , "bhelgaas@google.com" , "Alistair Popple" Subject: Re: [PATCH v2] gpu: nova-core: clarify FSP ordering in the chipset table From: "Gary Guo" X-Mailer: aerc 0.21.0 References: <20260612040420.121499-1-jhubbard@nvidia.com> <30e7305062676b72b7400a7e2cf48ff8e78139d4.camel@nvidia.com> In-Reply-To: <30e7305062676b72b7400a7e2cf48ff8e78139d4.camel@nvidia.com> X-ClientProxiedBy: LO6P123CA0053.GBRP123.PROD.OUTLOOK.COM (2603:10a6:600:310::18) To CW1P265MB8877.GBRP265.PROD.OUTLOOK.COM (2603:10a6:400:27c::13) 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: CW1P265MB8877:EE_|LO0P265MB9226:EE_ X-MS-Office365-Filtering-Correlation-Id: e483e14b-4eb2-4784-b718-08dec89cb1d2 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|1800799024|366016|10070799003|7416014|376014|56012099006|4143699003|6133799003|18002099003|22082099003; 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:CW1P265MB8877.GBRP265.PROD.OUTLOOK.COM;PTR:;CAT:NONE;SFS:(13230040)(23010399003)(1800799024)(366016)(10070799003)(7416014)(376014)(56012099006)(4143699003)(6133799003)(18002099003)(22082099003);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?N1ovd0Y2UFBCejVFdkxWSDdXc244Qi9iNUpjZkJwSDNDN0RETE9leWRXVHVN?= =?utf-8?B?Y2dDbXhweUYwbWNXRGJ0RG8yeUkzdXFBT25UQXlhMUx1UlIvT0NyVmFnNFdN?= =?utf-8?B?U0FMSnNzK1N4WlBsMEszbURsQ2NvbGltWkFYNHYralVLZWQ4SWhBd1EzekV0?= =?utf-8?B?eUJKalRyaC9vemxZMXoyd2lZK0NGb0JSZ0Z2MXJDdWRQcEhEL2xYQWgwNStD?= =?utf-8?B?ZlJySkVCSjRXbDFZQUNvQjVyY3p4Si80b0xsS2kwd3RlNGRoVGVjVmp4RFpZ?= =?utf-8?B?bEdHdTRnK3B6MEhzVW1Rb0VYYXc1bHgraEVKNUpERmhmakpTNnZrTEpUQjNV?= =?utf-8?B?cFMxMm1zOVlTMERpYVBIQ0I4b2tLeEc0RFdKNlRnU01YMjhaSFJ4dTVUdXBk?= =?utf-8?B?RitmMllVMnBkTEtHdG1VZ0Myd0d5N3dkQWxXU3VER0EzcnVuS0JXTFBISHBL?= =?utf-8?B?bkQrTkFXYlFNSGNEUHViUm9uYVZwaGtHbFZRNTl4QVZWWGZ4Mm5jZ3dZM2F4?= =?utf-8?B?cys2V1o3TTdtdEo4NTRpREw5YWxPaVRBUmVwMXBjV1lOQmM4SHJsbENBQ1Fy?= =?utf-8?B?bWtkTko5QThrdXVrTU52ZC9sQ3JMYzBGdTZzbTE4UHZabWdwQVFIY2NaSmdr?= =?utf-8?B?NktOa0xsVTgwUVJvcDVYaWF6bkJYZlFlbG4rQXVlSlYzdTR4c3lkbTNwYmdW?= =?utf-8?B?SWJBRFNiODJTVVpDcHRvSmRNVHR4Y0JYVlBOcUN2eDRZSCt5VWxvNkp6d0sr?= =?utf-8?B?WXRzRGJ5b2pHWklxVlhWd3hFVFBqWHduZm9UTlljU2NzbnpuQ2xLMXN1RHRl?= =?utf-8?B?bkZUUGNLc2FRb0ZaQUNuTytYazJwaktEanR1UFdidlJHd1pxaEZmSHc0bUow?= =?utf-8?B?WGZGcmZYajc3dEIvcnpJV3g2eVUxYW03eWVWbkRTNVNtUmdIYk5ST0NsNWlS?= =?utf-8?B?QnhMQ2cyZThJVUJ1SVdmSnFMOTZJdUtDQ3dBbmY2c3JqTjdlSWVpZGltRlln?= =?utf-8?B?dXFXQmlpaVBtWUxEQ1Aya3BPQVZGRzhjK005WVQ0a1k1RjYxYlVoRnVSRHNp?= =?utf-8?B?QVIxRDZnOFZlRG5ENE5WdmZVbi9CRVhaMUxscHU2aEUyV3VGb1lMMzVCZENE?= =?utf-8?B?UkhZbWt0d2YvR1VpVTJMdkZ3K2hoUTV2MzArdEQvdjJ1ckJGdkJlbVFGLzJk?= =?utf-8?B?WlpXRUFQY1U3YUdTbFJIWUl6Q0ZNazh3Q25PM2tkdk5nZFBMODNRSlV1cUdu?= =?utf-8?B?Zlc2Q0cxTkpBRVFvdndJckRlVVVVVW1XbmxEZ0sxSUFCZDNONXdUelhndVV1?= =?utf-8?B?ZjhYRzJiNWFRQ0xUUmROdDN0Rlh1eVhtNmdwNkc0Sk53ZDVlVEFnRFdkd2Fo?= =?utf-8?B?UlRTYVpIL0U0anZxaC9xOCt3L1J1bGVMaGZKMi85WlRTL1BoWVB3b2NHZkM1?= =?utf-8?B?dGZpTlV3MmZkeHNJYjMvTlU5K2o3NWFNbDdHZEtlYkRoMndxYVpOMUZVTEVW?= =?utf-8?B?NUFpcmxoMG80QWJSM0Ribm5Ma0QraXk3eHN6K1h5UTFlNWVUanVlTWlmRUt5?= =?utf-8?B?cG5pZTh1Mjc0Z2FRVFB3RFVSUjRuL01PTWJzNHdMdjJ2WWtubmpLMTZOa3p2?= =?utf-8?B?dGlnNXl5TGhYcWpaYjlIdXJvSHNsWm9XZ0F6eHliTUhWMEhkd1lid3BWTEpj?= =?utf-8?B?N1M0U29Ja3grY3FFQzRmd3YvbGZtMUNxUEVGQXMxRldqa0xOL0ZjcVovYm5r?= =?utf-8?B?MVpnRzJoTkJ3OVc0K00rcFp4ZFJqWm0yWjNYWUlRTHc5NzNCZFFzaUJFWlFu?= =?utf-8?B?RHRJbklNaE5GbnFXbUY1OVFkMi92T0NaQ1Ywd3N6cXk3RTF6STQrUy80dm05?= =?utf-8?B?b3NkYjh6eFdKL3BsN29BZTdzWDVZNitwSWgzSVVXSjd3Q3dRc2dDMExTU1N5?= =?utf-8?B?ZE5IOG55akxVRVlvSFVLTXhpRmZJZW9OT3RlN0hEZXNYeTZ4RlhXMGhyY1BV?= =?utf-8?B?VHNCVWRqNjZOSXI4V3Rkc2RKQWp0bm9yVUN4c1NTQ1B6bXUxQUZRc0t3YU1H?= =?utf-8?B?UXlzSmcyRXAvZlVMKytNQ1Nxc1VXVEYvV3V0Skd5VUtHV014L1U3S0JJRnds?= =?utf-8?B?MnVOdkE1RHJDRnZta2FrOXhHaHp0RmNtYmpBcFVoSEhoQXRxSzZTcGpTcGRh?= =?utf-8?B?MGIrbzRpblA2WTJmNnBrNVpEUXJxdk5qekRYZWsvY2VxTDNDamczcEFzRHZi?= =?utf-8?B?TEVNSzlPZ3JPS0lVQVl6RFVUa0JORmZCd0t5YUR5YkpxWVBFZ3VuM1pFNkJF?= =?utf-8?B?R1BhMFhXbGhJY0NXanVWVHRKN0dldFJEMW5rbVVmSnhKS1UzR0VjQT09?= X-OriginatorOrg: garyguo.net X-MS-Exchange-CrossTenant-Network-Message-Id: e483e14b-4eb2-4784-b718-08dec89cb1d2 X-MS-Exchange-CrossTenant-AuthSource: CW1P265MB8877.GBRP265.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jun 2026 16:07:25.8242 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: bbc898ad-b10f-4e10-8552-d9377b823d45 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: ZzvJKggHmI3mYLJKbOXdkqvtXwFl+DOJWFmiFVcPGsbmIxfeeWBBUkHU6VLoSsDWJzdD/1LVy9sIg6KTRXu+nw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: LO0P265MB9226 On Fri Jun 12, 2026 at 4:43 PM BST, Timur Tabi wrote: > On Fri, 2026-06-12 at 13:06 +0100, Gary Guo wrote: >> This would be inconsistent with the derived `PartialOrd` implementation? >>=20 >> If we consider Hopper to be after Ada, then we should be able to `assert= !(GH100 > AD102);` > > This is a comment about how we describe things, not how the code works. = It's because we > frequently say "Hopper or later" to describe our GPUs' capabilities. =20 If the code often needs to say "Hopper or later", then I'd say the comparis= on would want to be consistent with that too, no? When would you want `GH100 < AD102` in your code? Best, Gary