From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from PH8PR06CU001.outbound.protection.outlook.com (mail-westus3azon11012055.outbound.protection.outlook.com [40.107.209.55]) (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 D98AD2472AF; Thu, 27 Aug 2026 07:01:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.209.55 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787814118; cv=fail; b=PyDi6fx6BaI8zzz70zPoDhmKxDt5zv1raLKqMKMsqjK0mxDkSSyWMDeHduvod9Wfn+bQieTUZOO0B6/bw3Fc4tUq4la2qlStLp7e5ATCMcsrmJkY0Nwg6+hmWljhM4Ib6bBjBvhs/1g9TAJCVLDWuYDLKLrNfkHNabqfL0gCQ3A= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787814118; c=relaxed/simple; bh=6ypyPF047ZL5k4OESZRqEcercnHx674PncOtByEd2r4=; h=Content-Type:Date:Message-Id:From:To:Cc:Subject:References: In-Reply-To:MIME-Version; b=Fwe6O9Rd6Xf6H7m31+0pIzk/B78YJ/p8JaHYYrE2fVFi22wGRU8EnJG10Xj8507PLwfO/sLWejq83wGF4gt70CznxFS1Ydb1VWa8RDWhsgBBAVu35gH03YJiFTgbTdtHUzcVzYMLdKVABfp3llGOvU77RaYY0ZJlcOfF1XRTeaA= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com; spf=fail smtp.mailfrom=nvidia.com; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b=jE9Gj4Og; arc=fail smtp.client-ip=40.107.209.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=nvidia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="jE9Gj4Og" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=Y555JF/+oPN7UZoHAWGeuR9Q+8Zdy0pG4wFYXVoEh4Lm+yDQur9JLYmm2SOGg/S77EZgic2WWX83H66aQHKW64u6G3a0cM6DEbSs5Jg/mw5PfqxjzTwPqeyBhIGL+BkbRVXmcWPQkGwgBBZpEaU8G1wqx6THdXrOtYbc6g9v2fjcgKdO6XtmtDiVZJONhUY0E7U0YrpBm4WSTTzL571opQr3Z5jJ4kAnhIayYjgZW45NSsDbFqmr6ttwJ6XdoM6QEWigd1sZLHN3sRHxwD5H5/0aS9FHjwJLgDN/4i0cY9daE/asFwkjYXfFcAzjbLB5h/R6kHP/cIRvCz+ffebRQQ== 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=6ypyPF047ZL5k4OESZRqEcercnHx674PncOtByEd2r4=; b=oHpVEauk2IZX9/H0R/ViFO0jVwC4RGiXJOt46Bux71bHOQ+6Bz/6fPIzuVuPaRXPkl8zhvhKlawFjufydTLuV54WqArlxBwzEm5cGyi5/Yn607grAdVAlSFYUQc9aLPVPTE+5T/nqlyb1iHCQgpHFNlOBi437cNGOKR/+BLOylhzIhfePBGsNo095voKz9Lvb03PRbvRdNyuFidEotrqUp9ioZ38O9tbfMskHAKKBxoXe/SC+fyAEkwTyP/kxn1S6Qzzpe1UT+ecW7BILjMOph8lKolXWZmznsaqyV9orB+pweZLxvjnE3OKuKpRwKb7OI6BDMQdG3kVbf2Qyv3BWA== 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=6ypyPF047ZL5k4OESZRqEcercnHx674PncOtByEd2r4=; b=jE9Gj4OgQpe2LZLsvUlBAx7qlUlgTGhCMpUssE8ZY8nNQM90DvMXVyYXMzu2DDfBBGN8hDoVAB2SxyVWO6ir7oQRDORjjaftbRuSA28GMKyKSl+QBLgimkgSAXiqSat9FKZYYVCsvcCd0r9hUPXScagAAKseIPatUDQqRzPDcgiCFRQg5PNvVK+X2MUH/dHsK+5emx8rA0z6r3CD7FJrhRQ9Xup06pKTyKJJ39dQzPKOWzpSfdmNDC1C7PJaASSG0kyml4UjEQi2IgMueUSGat+gvE4HK1avQe1AbmiiVkaOCjr5a+Bl26PYFAaLMfYE4Qictu5WKKmH2xSu7ajAPg== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from MW4PR12MB6873.namprd12.prod.outlook.com (2603:10b6:303:20c::17) by PH8PR12MB7280.namprd12.prod.outlook.com (2603:10b6:510:220::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.360.8; Thu, 27 Aug 2026 07:01:52 +0000 Received: from MW4PR12MB6873.namprd12.prod.outlook.com ([fe80::a338:bd2c:3a38:ece1]) by MW4PR12MB6873.namprd12.prod.outlook.com ([fe80::a338:bd2c:3a38:ece1%5]) with mapi id 15.21.0315.014; Thu, 27 Aug 2026 07:01:51 +0000 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Thu, 27 Aug 2026 16:01:49 +0900 Message-Id: From: "Alexandre Courbot" To: "Gary Guo" Cc: "Danilo Krummrich" , "Alice Ryhl" , "Daniel Almeida" , "Miguel Ojeda" , "Boqun Feng" , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , "Benno Lossin" , "Andreas Hindborg" , "Trevor Gross" , "Tamir Duberstein" , =?utf-8?q?Onur_=C3=96zkan?= , "David Airlie" , "Simona Vetter" , "Bjorn Helgaas" , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , , , , , , Subject: Re: [PATCH v3 05/16] rust: io: support register projections References: <20260819-typed_register-v3-0-3699a75fadf1@garyguo.net> <20260819-typed_register-v3-5-3699a75fadf1@garyguo.net> In-Reply-To: <20260819-typed_register-v3-5-3699a75fadf1@garyguo.net> X-ClientProxiedBy: TYCP286CA0121.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:2b6::14) To MW4PR12MB6873.namprd12.prod.outlook.com (2603:10b6:303:20c::17) Precedence: bulk X-Mailing-List: nova-gpu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MW4PR12MB6873:EE_|PH8PR12MB7280:EE_ X-MS-Office365-Filtering-Correlation-Id: e566ae3b-ff98-45a2-f0f2-08df04091238 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|1800799024|366016|10070799003|376014|7416014|56012099006|10067099003|22082099003|18002099003|4143699003|11063799006; X-Microsoft-Antispam-Message-Info: a3cKJq/OjkAWAw/dY/tvDHLwBpfJ0ti3KrQ6Rj1zqmhp5CsM4Ru8hi6tsQkDLptyKltCRdmLl+ToHKEVOxFkYwg698DNLY4H5xC9Y/ye3V2Xw9fq8jRXoXQxInl6lES95L7rJEYBvyibkhdKzLetrS33f0/14TtyodTNob8v33v5wezAT4GBiy4Sxh1LSm9RhoJJepy8151m3RpSDaQCDk+UKg39sB7jaBZdD7qk+pCEPPgInEKsbG6sVS5mVIGCrGAbMh/3OSzq1IV31W9hzGTJVs5JE/qVREgNACA1UCeNtrkfoUWarylhR8hUTlPq7tU/baOPsNj3pXaq98HhjCexMWvQoHlNfnvIqhVPU0HwAMgEoMBWe44BoUshox9SM26UT0ifEoYYVJkMAfIZ6UFNJWC4hrFLz+9AxkJ6Tv3lof7oQAmrCqst7NR/+XJ6AgBFDQ+X11bumpgU1SFeLEBZ6xAN8Adpd6/94BpFSK3HTE6+rjLhFQzo8BxhxVhSkvCnNWcF8pIT+oSCVM6c6T3/eAroF1yjj2nObOwUTZTRkd5Zl6ZGyTyANlbcKvf+XVQYH0JxryKXktWVJaCZ/UEr/XpvJWUjkncJ0VCpYkhApubGZabV1LVFN9Wop/xV1L37EmuXcvaQxoav9H3ENwMzoscqhhu86fNulFm7S+4= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:MW4PR12MB6873.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(23010399003)(1800799024)(366016)(10070799003)(376014)(7416014)(56012099006)(10067099003)(22082099003)(18002099003)(4143699003)(11063799006);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 2 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?OEp3TmM2OUpDSjZLVTBwZTRFSUFVazdBU0k2SHBCV3o0N3JOcy95QVcvNEZv?= =?utf-8?B?aGZkSjNhc00rczQ3RHdRVTJXV2s5QXFUbzh0bXFrSC8yRytGTndtRE4yMm9n?= =?utf-8?B?UzV0cjkwZ1VEazJmUWVrbk51SlhrOVorR2ovZWlwbmNQSnBiVmswK2ZxR082?= =?utf-8?B?bEw1TGRCekdHUWw5c0FOdFZHdU56dWhXeWk5ZmhnMms1aks5b3M3TmhIbHVY?= =?utf-8?B?eXVTV2FqQ3liL2tFY2pnRUlTeDRsemNKSnR4aEZBbllROFRyQXJ2c1JwZnRh?= =?utf-8?B?T2lydzU3OWdPU2NuL21rZCtxN2luUkthNW01N3lPL1A5cXhLN0VNVlhFSGtW?= =?utf-8?B?cG5DOVpudkdJMVh6eTkrN2lqT2lkSWN6VXlTQVFPVmQzUU9OdzRKM09SOVFl?= =?utf-8?B?YjNEdE5TVERxY0xSUTFCNHpnbEgwOStwS2tla3VYdnNQZFpFYjhmSy80Yldv?= =?utf-8?B?UmxoYTRzdjQ5UFp0SkhOWkVORmZuMVJVRnA5c29CRE1lZjZtb0dPNENQZTNX?= =?utf-8?B?YnovbFJUaFcxallJci9jTWpwUnFpc0paVURlampTNEthV0NPMEttZXR3S3VU?= =?utf-8?B?TzVUSEVXRGdCSEV6Ull4RUNzU2c3K0xLaDY4SWJNb0YxWTNQcjhHb2dsWmZo?= =?utf-8?B?cGdUaTZZRCtuVE1wRHNsRFcrUDBvTEdhbFRiVnEyUVgxWGM3SW1NMGNyRUcr?= =?utf-8?B?Ky9EdTV2dk81anpQSUZJdXhTL1VpNDI1a1FzeGxmRUZQNVZRSUZCTVRnT0tF?= =?utf-8?B?NnRtbzJCNHpPWGZFR1FreXNDYlRhOWJWMWk3Q1lVdCswYjdoRTZvRGJ5SnVG?= =?utf-8?B?SEVSWTJZOFJxa0UzTENmalZ3bkUwUFg0ZmFVb3E4NEVWWWw5QmZXbzd0dzg1?= =?utf-8?B?SFVhOHVzc2JNQXRwQ2Nrak8rWFp1SXR5Mng4TlpEUHYwcDVycHNBZ05oaTl5?= =?utf-8?B?SE1NUzZTUUJ2bktwa3Y5SkNZL0xmOEhabXhyd0ZiTFdYWnRJNnMzR3BtL3lo?= =?utf-8?B?MEQvcGEwWVc2Y1AwYWp5TGVUWVlqNktYNC9YMzBVa1kyeHdOS05BM1NVN2Z1?= =?utf-8?B?Q1haL0FjTTF2QjNtY3NCaVAvbnlwbVN4OU9XZkpRNEUzcmM2cEdKQmtSRVFj?= =?utf-8?B?Sjc3akNpelZyczNpLzROVDBqeHdsS1lxNmFoYi9ENStWUFhya25RMFZjYXNC?= =?utf-8?B?WVBBY1l5aFp6cWd6REFEclIya1RETjEwSlY1OWNXOFJYMDk2WmtpWGxPZHlF?= =?utf-8?B?U3h4VzB0eC8xWHhzUy9Hdkl3RUJGYzJreWMyVXhTWTJsNmlQbjlObEp3Q1FO?= =?utf-8?B?czVqcFlFMlNMZWlaMHFHWUp2WkdUL0grMkZzNFY5K2ZrY2pPeVRRNmZaTFh1?= =?utf-8?B?REtlVHlzUS9MZTF3UFZiU2dmUUd6WVhEZ3kwL1l3VDRqUHNsV05nSS9NVTdH?= =?utf-8?B?REZJbnBlQTF6Z1hXc2twSEs0d2thSm8zZzRKU0tiNUkwcWJsakF0NWNQQjda?= =?utf-8?B?dndma2lBcHQ3R3pzbFJndG1SMmxIcHd1NlRHUVpTc3JwZUVjRWpZcXlqeUg5?= =?utf-8?B?NEpCeUViVjM3THFLMmJpTGlqb29iUDV0WW5WeGVhMi9JL05PU2ZkalN5b0pv?= =?utf-8?B?QU1YamFNQWhoZUtwVFlWME1udmYyaGpUYXkxb0U1RWlURlphNmRDQ21iMGMx?= =?utf-8?B?YnlrSlJMdEcyR2VFTm1PM0VxZzJLNWRzbkU2RlY1eTdJeGRKVHVlTlI0ZUFw?= =?utf-8?B?MGxmYzFJZkM2a09QTGZ4RTRqRjc2T0xzSEVHWklZNUhha2VKQ1hoR3VsU29L?= =?utf-8?B?Z0lMdGdzbkxLQWJoU0I1MjJvWGFkRzM0Nit1TUhrb20yLzdMRkFXZjFGVG1v?= =?utf-8?B?VkFyOFJPankza05FVHRTVFg4YklLUWx5SWVjUXhCYVBBbW8ydXQydE5GbFNJ?= =?utf-8?B?eVBabVNoRG9LNm1aUldiQjlselkwa0ExZ0g0M3RWbnpZRTFjSXcvdHVxN09l?= =?utf-8?B?eGVaY3FpNVNoT0xJby9MZ05TNGNLRVhUOUh2b2tWQUlYampNZ0lvTlJ3d3RJ?= =?utf-8?B?MlVQZFRrNnVFemt2V3ZDdi9sdzJVb2NQK1Vlb3E1Y3BLc1Z2YUhJa0ZZT0Z2?= =?utf-8?B?Sk9YenBKY1pqQkpXK280STRWeExoUWprZUpnTkpRelZhSFBrbDQ5dWgybXVC?= =?utf-8?B?LytGdk5jbTVDVXhWdkYxbzRCNXV0U2RHR0FCeWtKOWpKMlZ5ZDRNVUszdFN3?= =?utf-8?B?ZlUvdmJ6V0l4Zzdvc0Z2MUovWU9jV055Qko3VEQ4TGZQdmt4UCtOeWhYOVh0?= =?utf-8?B?SVpyTWhpd2hsVzRla3VFSHVoNlQ1R1JaZDJMWWltU0lIQ0hXZDNPS0tzMFps?= =?utf-8?Q?g0JcvoOUBvG85k4Ke0Rlj0hE+V2UkbhQHqO2GFWd5Lv0Q?= X-MS-Exchange-AntiSpam-MessageData-1: vAJ2Rgi48fFFyA== X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: e566ae3b-ff98-45a2-f0f2-08df04091238 X-MS-Exchange-CrossTenant-AuthSource: MW4PR12MB6873.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Aug 2026 07:01:51.7788 (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: 3HcyfqxACiSnmk82FRvl9YsCKpzR15RydACDuA5KeDQh4GVc+rY4DpZ9zARWnmSZx6v+7yK5KB7vVj9YQxxa6w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR12MB7280 On Wed Aug 19, 2026 at 8:09 PM JST, Gary Guo wrote: > `IoLoc`s themselves just describe a projection from a region to a concret= e > register. Thus, support it in `io_project` macro too. Also, update method= s > that operate on `IoLoc` to use I/O projection. > > Documentation of `io_project!` is not expanded yet as the example works > better when `register!` type can specify base type. `io_read!` and > `io_write!` gains the ability to operate on registers as corollary of the > capability of `io_project!`. Examples are not added because `read` and > `write` is still preferrably used instead. > > Signed-off-by: Gary Guo Reviewed-by: Alexandre Courbot