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 1C6F7CD4F3C for ; Mon, 18 May 2026 13:23:29 +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=HxgTGn2UGPzs3R9hEnApQQFF803ju8gKa2p5R3olVUQ=; b=XM39U0gibpy6WI2v3Iht93tphw olXhUGJdKY8Vg8UoJj3KhJzfS24ymCXmWf2HhYhZzTT5auJ+ao+sGTvD5nZRCiSovyQIS4tVuqi0O 8bA885Xe9kOsjOThRlBj2IDuRQ8vejA6Vuqb/KjaAlACpnyZ8hzkFub2Pb/FvacmMweaXgzCYYAiV hiTVeOCmDbTc1w/ZEb1+POO4LDfiSfG2PhEnQGQonWxO3PQjkz+IMF6NKam6xM6wvocegZ1qFyv+6 MCheHrIgsg30d/Wcsz6I6IzKGFlw38VXoMpYl3/1F1L732UQAdL3ZOjn7LHBVPydl384lImPtdvV6 OM8+xLsA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wOxwJ-0000000Fnrx-0D4I; Mon, 18 May 2026 13:23:23 +0000 Received: from mail-eastusazlp17011000f.outbound.protection.outlook.com ([2a01:111:f403:c100::f] helo=BL2PR02CU003.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wOxwG-0000000Fnqg-2Zuo for linux-arm-kernel@lists.infradead.org; Mon, 18 May 2026 13:23:21 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=h93JVVnA5oyPSksPodWh1LolerZ/gihgsGolvyF5lIOZBx+8p7qNq4MjSXmGvJdhuf1D3lKw7OnEAwbonUdpHog2aGpEumnmuH8r05ZvPU/Kr4n4EFPWRW5hNbaHIv+vN2Pob9YDCEbLYpVWmwzFsjyDTXLToQoex0+WT6ZLykogoi3WPXhmspTuvSV2SxGJsZwPh1p/UFIrbuCl7Gh8pvXhEcHkM8NnfDV9RDxNA0bQzX8NqybusBnT8xm5mR3ppEFRz6BU05VyLgkABPnaM2fVxpvPs3oo0H27np0NDoKgGhWa4maTGWPlJkuDfjm1XKs3zn3blVZkZGFpoxRumA== 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=HxgTGn2UGPzs3R9hEnApQQFF803ju8gKa2p5R3olVUQ=; b=JbwRaEb7rX3FPAkHdd8cvK0pE5rgRKKcdazSJG2Ax2d1x6Oj7sRlV0ipfq/PVPgtYhGgnOw7ZfCcEnVUuzhfVHI69Zy4EPONG+RAYMY959HbNmh38TBV6UjMvWniSfarMPuEOsGJzuv25HJBL4SzELIxioOqPbTb8kTFwu3o5702+rRqQw3X9qA88HpZOfkHicXrNUSPQZJGgWZhohCE6196ecAwefCtZ6dDDFf0/Rc+EpOrmrnkha3PaaImXcBpR2JmsS7hz76FzbVsu86xq7j5IxuzF2daGKsXNnIh9ZCN9eBDyWucw6NyevIUyiDI/XH42JTFcFHX1yJK1MzAgA== 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=HxgTGn2UGPzs3R9hEnApQQFF803ju8gKa2p5R3olVUQ=; b=BzjK2t72WNW6pLxGVOzBkPthYBi0mpVWc8OCwFnLPAvb1r23f1sh81cA2qo0LR1VKpxD+kQNM+DxLMJoRrbd+S8QKjX4Lqs1QbbtNYv2Nbho2YJ2z64V/W8uE54MMnFCXtVFhMiuKgpjAtRLK9XQG71Ayo4zGNdbttrotKf0cvaxri/Q7iBlZwlAjEInadGDnBMKNemW/kC3LynrJFaBHuScwapoJNDV6w74cJ3fPfBhDaxjMZS+ZSGswLh/6mkdp5cnHgYrdOda7pe9yrgERLfzFX181SLX6AYR0qq/PDR9ee6p2aGh+XvSBLZNrQMB2kKJSUotA6vHdFNQuqRbjA== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from LV8PR12MB9620.namprd12.prod.outlook.com (2603:10b6:408:2a1::19) by CH2PR12MB4055.namprd12.prod.outlook.com (2603:10b6:610:78::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.25.24; Mon, 18 May 2026 13:23:08 +0000 Received: from LV8PR12MB9620.namprd12.prod.outlook.com ([fe80::299d:f5e0:3550:1528]) by LV8PR12MB9620.namprd12.prod.outlook.com ([fe80::299d:f5e0:3550:1528%5]) with mapi id 15.21.0025.022; Mon, 18 May 2026 13:23:08 +0000 Date: Mon, 18 May 2026 10:23:06 -0300 From: Jason Gunthorpe To: Nicolin Chen Cc: iommu@lists.linux.dev, Jonathan Hunter , Joerg Roedel , linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org, Robin Murphy , Thierry Reding , Krishna Reddy , Will Deacon , David Matlack , Pasha Tatashin , patches@lists.linux.dev, Pranjal Shrivastava , Samiullah Khawaja , Mostafa Saleh Subject: Re: [PATCH v2 6/9] iommu/arm-smmu-v3: Directly encode simple commands Message-ID: <20260518132306.GL787748@nvidia.com> References: <0-v2-47b2bf710ad5+716ac-smmu_no_cmdq_ent_jgg@nvidia.com> <6-v2-47b2bf710ad5+716ac-smmu_no_cmdq_ent_jgg@nvidia.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-ClientProxiedBy: YT4PR01CA0182.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b01:110::23) To LV8PR12MB9620.namprd12.prod.outlook.com (2603:10b6:408:2a1::19) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV8PR12MB9620:EE_|CH2PR12MB4055:EE_ X-MS-Office365-Filtering-Correlation-Id: abd06da7-5c0c-45e5-a059-08deb4e099b0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|366016|1800799024|4143699003|11063799003|18002099003|22082099003|56012099003; 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:LV8PR12MB9620.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(376014)(7416014)(366016)(1800799024)(4143699003)(11063799003)(18002099003)(22082099003)(56012099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?cNepZeubWqCPA8Btdw6/ZFXj+KqUQWlnZrxzoJ1fZAsg5U6r1iUqbcOfCwg+?= =?us-ascii?Q?z2oo1wcQzqvBAOcBQ3o1BXGxN/SeG2S61EJ1Qx1v9Cy/esA5JkyhgXiVUM7J?= =?us-ascii?Q?c6TskmEcQhZB6FcKLKza+xdG5O8298V9zkbLPSQ/MJW3Y40vr5Ujz/5ZafV5?= =?us-ascii?Q?M6q87CTeoxGYL47Q7FklVkbofJTvydbO5d57jYWpoxudKfIO+edA9L3oe7fW?= =?us-ascii?Q?MwDRf6S8ffYHWAj/ZG2n67X+uTyJKa5u8D1eGWRchlkGxfvM2g0xV2TVu6oy?= =?us-ascii?Q?OD4xIetRqtrFyEoTjFQg0uYgIJAxOZKwOOJOUE2YFy/LSrE2w3LO1kDLbw7k?= =?us-ascii?Q?ZvN9Y5wClaYDlZBbaRzP415jWONQkuW5rj8BwXHCM4DWQWPbdt8CyPfttxXO?= =?us-ascii?Q?taM9rAwWRQe5OcGCgl6pEdqWuhcRhiN1i2NeU6E8h03gX6MQQ4WdrR34Al6w?= =?us-ascii?Q?xRztMXleDfvuq/JL9wnqhB9+O7jAJ/VCyloNkxe7k0PN8OcH6TykjgpgQisc?= =?us-ascii?Q?BveJFC2hGhcDO7jz8dXUiSTnJyIP+Z/fxSJyPJv0zUz9YfC7RBbkFsBJqzzN?= =?us-ascii?Q?L7Fh5utSmcpqLhTFhhHwAGcyubUAlRtO8MkElquHz3+WdjE3UhgPacLWjuLS?= =?us-ascii?Q?kCoQDqIplcjMB4EJ/fuoTPLiXhBkx25Z7fW6S4XOM4sn6sRH58FAyyTveuH3?= =?us-ascii?Q?qLo0HCpg74gwLHCwSsArYYS5ttxNVxL/ZZ+QHhQ82wRDRzGX+ep7OlGDhauv?= =?us-ascii?Q?0GF4vW5kaDk4dMeQnesq1BFsWtjHwIIy0ZbRn+yh8tNUgmrLyaXatmvs7p0v?= =?us-ascii?Q?pOXWw9/p3nIv/J3KAlwrCfQAOMrJFskzqQsD3F9y1PxnBtjpQe/11WFKtNyA?= =?us-ascii?Q?vvvmdk7Q9+ULpputPfbI7uD6NKs49lToDcjp5fzqaPN6wWdTRCg+dn+OHghU?= =?us-ascii?Q?gZd4XLV5rgNyNRbuXURrv5tfmJSCveILpFTafjL1spB0rmJ2PVixeP5jdnMA?= =?us-ascii?Q?DhhWkPRGeYwBuFre5F//UISECGaDuJXBsOfXRxHKuvkmlenc79IrGBSs+69R?= =?us-ascii?Q?LBiCQEq+V9ru5HzPfItlmk9yaRAKz9JtL6nS6lDIe4/jg5KlZoR1EbUxvOa+?= =?us-ascii?Q?nVJnJChY4EeRdwEooUEdwkHnt2PoIIwB2J6CRXC65tTojWDB55Q8DXyuo/cx?= =?us-ascii?Q?bbu2ovU3s1idg/OvzYTMbUgK5zV3pzST5EAzwjIEU+8Gj3AKF2eL07dEgORf?= =?us-ascii?Q?U8OBBfn58UTyKNJfwD2FtH8dLDQN8gJ9aPuH6QTbqWnEYTGprSSGDh0ooRSk?= =?us-ascii?Q?ytgWQpjLP0udEE+FAgEDv/jRLkmN7QRHrx0BvHQsN47deQSOgXal9n8wvUvo?= =?us-ascii?Q?+4WIXp51zDFtdDruHccZtICE3HTDqRWNGD16AOjM2qtaPwLWE63ojgdIB3bF?= =?us-ascii?Q?vjKtPVWJSgonmO6pHkVEoEpSBJJQ+Av0x6Lgk57jys/V7iyFgc8GUocn4GSi?= =?us-ascii?Q?NZzn/+kW6rZfu8Ju5ME2LtCpUmV0mG3Vr8+TPkUlTZWd8jjUmticDQJ3QaGW?= =?us-ascii?Q?fE4oTz4p3R00GKwHedJQ7VN/f7HSQhImqobsdTkdKBv6vD1UzlknrO5/ZMw0?= =?us-ascii?Q?hPiH9pcQ5NdGryS6Oerm9ad9wvoBpmp6cRCXLUazlbdk4kw7rXJaH0Mk8Hy9?= =?us-ascii?Q?TA9pbcABnPde6nWnfemN1EzheefZIMvCR2ClGuaEjxVaXIX8?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: abd06da7-5c0c-45e5-a059-08deb4e099b0 X-MS-Exchange-CrossTenant-AuthSource: LV8PR12MB9620.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 May 2026 13:23:07.9730 (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: DrG6M1bZoHRhEQdZof5zEvXmwLYusmQJ24K1kiFeike52cQLh+WjzltbbT/5usOl X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR12MB4055 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260518_062320_673503_BB1ABA5D X-CRM114-Status: UNSURE ( 8.67 ) X-CRM114-Notice: Please train this message. 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 Sun, May 17, 2026 at 08:15:25PM -0700, Nicolin Chen wrote: > > +static inline struct arm_smmu_cmd arm_smmu_make_cmd_cfgi_all(void) > > +{ > > + struct arm_smmu_cmd cmd = arm_smmu_make_cmd_op(CMDQ_OP_CFGI_ALL); > > + > > + cmd.data[1] |= FIELD_PREP(CMDQ_CFGI_1_RANGE, 31); > > Optional, might retain the note: > /* Cover the entire SID range */ The spec doesn't have a note like this is just defined cfgi_all as having this encoding. Jason