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Thu, 14 Mar 2024 19:24:55 -0700 Date: Thu, 14 Mar 2024 19:24:52 -0700 From: Nicolin Chen To: Jason Gunthorpe CC: , Joerg Roedel , , Robin Murphy , Will Deacon , Eric Auger , Jean-Philippe Brucker , Moritz Fischer , Michael Shavit , , Shameerali Kolothum Thodi Subject: Re: [PATCH v5 02/27] iommu/arm-smmu-v3: Do not ATC invalidate the entire domain Message-ID: References: <0-v5-9a37e0c884ce+31e3-smmuv3_newapi_p2_jgg@nvidia.com> <2-v5-9a37e0c884ce+31e3-smmuv3_newapi_p2_jgg@nvidia.com> Precedence: bulk X-Mailing-List: patches@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: <2-v5-9a37e0c884ce+31e3-smmuv3_newapi_p2_jgg@nvidia.com> X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH1PEPF0000AD76:EE_|DS0PR12MB7777:EE_ X-MS-Office365-Filtering-Correlation-Id: 2ad2a283-a775-4f7a-58e5-08dc44972022 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Mar 2024 02:25:04.8233 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2ad2a283-a775-4f7a-58e5-08dc44972022 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CH1PEPF0000AD76.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB7777 On Mon, Mar 04, 2024 at 07:43:50PM -0400, Jason Gunthorpe wrote: > At this point we know which master we are going to change the PCI config > on, this is the only device we need to invalidate. Switch > arm_smmu_atc_inv_domain() for arm_smmu_atc_inv_master(). > > Tested-by: Nicolin Chen > Signed-off-by: Jason Gunthorpe Reviewed-by: Nicolin Chen