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Tue, 14 Jul 2026 14:42:43 -0700 Date: Tue, 14 Jul 2026 14:42:41 -0700 From: Nicolin Chen To: Jason Gunthorpe CC: , "Joerg Roedel (AMD)" , Jean-Philippe Brucker , , Robin Murphy , Will Deacon , David Matlack , "Pasha Tatashin" , , "Pranjal Shrivastava" , Samiullah Khawaja , Mostafa Saleh Subject: Re: [PATCH v3 5/8] iommu/arm-smmu-v3: Precompute the invalidation commands Message-ID: References: <0-v3-4e7f64f4e094+85e-smmu_tlbi_jgg@nvidia.com> <5-v3-4e7f64f4e094+85e-smmu_tlbi_jgg@nvidia.com> Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <5-v3-4e7f64f4e094+85e-smmu_tlbi_jgg@nvidia.com> X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL6PEPF0001AB50:EE_|IA0PR12MB8422:EE_ X-MS-Office365-Filtering-Correlation-Id: 4459db2a-1a59-49af-268e-08dee1f0e5e1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|23010399003|376014|7416014|36860700016|1800799024|56012099006|18002099003|22082099003|11063799006|4143699003; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 1sNaTU6YHgFvbAhT8wHMVxehgVo9y3PPPCxx+3HR3gpSbafKEZMEbZ4wsd1U+vvITLv3HZPEcP5hogrxiGg/4rTY8f+xlmq2gl2KJeLBhgo1zsoJyVJZx7PYZa/T+itJol50MUY41/jXLQjzpIQrWoto8Q+3D/DW1n9GN2+RfCQ0zlT5anweQwEbYp4+DL4d4yS0jQwTyZcExV8lsbHIWq0tO9MQjEgAN59iJuPdQh8vx8kzV/25TxHKFR6ermbVvjhc0/OYYaIUxXcd1JDUMB1U4tH8VDmOXF1enHmCiFT4KcjNzjo7/RTN4Rd609Gd8IvrnIwFebvj4/601nnOqt4hD6qo8Ri7cK6g1l1EmuNmuKAhtCCcWLqRI7cSfqRMYmil9upaD8QXCSQwBEfZ+inqKb66QcJ2+SjRbO3/rk6F9jJf+NRFzd9LJH/1Vbs7 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Jul 2026 21:43:09.6499 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4459db2a-1a59-49af-268e-08dee1f0e5e1 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BL6PEPF0001AB50.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA0PR12MB8422 On Tue, Jul 14, 2026 at 03:46:05PM -0300, Jason Gunthorpe wrote: > Store the required cmd data in the tlbi and just copy it out when > processing each item in the invs list. The cmd form only depends on > if the instance supports RIL or not, otherwise it is always the same. > > This avoids redundant calculations for each invs entry. > > Signed-off-by: Jason Gunthorpe Reviewed-by: Nicolin Chen