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Mon, 3 Mar 2025 12:53:03 -0800 From: Nicolin Chen To: , , , , CC: , Subject: [PATCH v3 0/3] iommu: Clean up cookie and sw_msi in struct iommu_domain Date: Mon, 3 Mar 2025 12:52:49 -0800 Message-ID: X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: AnonymousSubmission X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH1PEPF0000AD7B:EE_|PH7PR12MB7985:EE_ X-MS-Office365-Filtering-Correlation-Id: 6dddafc2-1cdb-4c3d-faa5-08dd5a95694b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|376014|1800799024|36860700013|13003099007; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?sCY6nBaUFvOeqe81IhIuAb9YoR/vElFampxj8cliPnvmxsSpwbDyDe3W9Hhh?= =?us-ascii?Q?T/GB701Q29F8jVS8zo+gaPIU18m3b75Nb7MIm1hTNX3HzgeTCGoIGVap76XX?= =?us-ascii?Q?hsy4zUOr4g8BVpN9V7oigEsCKVjcI1Lp6taHJxyHlmWD+aw9gr4eBtzOnTxI?= =?us-ascii?Q?1S3ob6ImOeiBjBJN/NKV0KTpLvo3SvOSQ8vpc3It82lW4mdamIkPQp/CQLM/?= =?us-ascii?Q?NKnwoaoNz5AeOKxKdUBmLQjmpx9EdxckW86jb+bYIVHmPo+xKLvUbd2Sk9Po?= =?us-ascii?Q?jQMqx55EtvYYQntoFCEJeRh6MinY0fSldSiJ1YGgNFQvl0m3je26vZTbKGX2?= =?us-ascii?Q?W/ckgnRRU9ZST2BjHcYA8fyI0auv1gkObPvN7tkr7KMD//soDKU0csTy1wrD?= =?us-ascii?Q?yC95wQhLFw2du4xgGgtT1r2BgFsR9ieNmFfyqtYTsbmvg8VvUjsss4OdlBcG?= =?us-ascii?Q?nRZ+WvN4HceNJXou1l/E2coy4B7II3jN9WXhnJi1p6OHN/rRlLHATD2nR5BL?= =?us-ascii?Q?qEt6DUPik+V7edfsCZR3kVMIA30CZQyFC8t4NcAghhJwhXbo9//aJfBGVFBx?= =?us-ascii?Q?l+91WhPVmvDnravHRszX/7ldHzXdkdKrjNKM6kincsR4t/YM6UOhHBBDDEcG?= =?us-ascii?Q?gj5o7NUKOtkh89tuy/Wma7H6kaWYMbUerKx1QOJkTCKbYSmM1a22UsJc1uQV?= =?us-ascii?Q?HYZRWY8yMPR8d7Qc/fr9MvUnt0h+YcQgYbIl22Ev6JvLPe9+zuDJnJGdXn/F?= =?us-ascii?Q?aZWMPDeXT6fivm4KrH5T+LeMI+3PxdbYzcbrbvDhx+SOCAE5NJ0JbuWldi7X?= =?us-ascii?Q?9JeOzs5Zq08rKjrlu2FgpyaR7tQPdRef+EP6qv1wfh0bcGOZFPk5h6ghJqBs?= =?us-ascii?Q?/pSEJQ6pm7C/Nfbo14o8kjFWySn+mWXJU2KGBduG1baGLeM2n/cVYidMlJcG?= =?us-ascii?Q?hljEsvLiX20rLfC5x5QKFtyMLpIUsUWV6hQAcGenaP+FQ2hv6Xnd1aq+/sJa?= =?us-ascii?Q?qpFMExe0zs7kNQYLZ+5fEvUQJ2WNJCk3ksgcfnNLOwUJw6BAJ1l/DHZ8+lIS?= =?us-ascii?Q?PbD0a1x0twkYak9ZOsVtY5H6SyMCoIImWHHsvZK3iM/a+6iGm6WvocEa3hqL?= =?us-ascii?Q?gKglPGB8x2fU/DKPR1jUqMLWpG10PRmYku7NHg+DcjeygFJj/sDYOR0Scadb?= =?us-ascii?Q?oSZy5DKXFSUFuaYNNJwq7A/rOcQ3KCQaj+oBfwZrsXTZuYinzAEiVQU3t8FK?= =?us-ascii?Q?RSO7TYi+4MEe9zbGGiHJHLCkmF1FNzYRomxJLfTUppj0NuH5UX9Z2PiN69Gq?= =?us-ascii?Q?z22GCP5q/XEc9ULgQ3seG80gwr0ZwmsjWCLKPBd7X3zDSVk6TuQ4Vphzdz6r?= =?us-ascii?Q?2CKzvyvxUPsXef/0+p12yRzCDbRS3YSBF3V3hZvmM1G5VOCwosC/AciVX28V?= =?us-ascii?Q?4wzgK6nN1Su3G0YZi4XFQdWxCVY6N/jTyT29s38rJ954ohOuIiOldDYxG7yR?= =?us-ascii?Q?NYtGIV5aVIgKzXQ=3D?= X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(82310400026)(376014)(1800799024)(36860700013)(13003099007);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Mar 2025 20:53:11.8442 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 6dddafc2-1cdb-4c3d-faa5-08dd5a95694b 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: CH1PEPF0000AD7B.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB7985 A few things in iommu_domain structure (such as iova_cookie, iommufd_hwpt, fault handler, and etc) are exclusive to certain types of iommu_domains. So, all of them can be seen as domain cookies in different cookie types. Furthermore, iova_cookie is shared with the msi_cookie use case. It could be cleaner by decoupling these too. Define an enum iommu_domain_cookie_type to fit all those cookies in. Since there are only two sw_msi implementations, check domain->cookie_type in iommu_dma_prepare_msi() to call the corresponding sw_msi function. This is a clean-up series for the previous sw_msi Part-1 core series. It's on github: https://github.com/nicolinc/iommufd/commits/iommufd_msi_cleanup-v3 Changelog v3 * Integrate Robin's patch https://lore.kernel.org/linux-iommu/4e68d5820be06adc1b34fc0d1c9399481151daee.1740742271.git.robin.murphy@arm.com/ replacing private_data_owner with the new cookie_type * Move iommu_sw_msi stub from the public header to iommu-priv.h v2 https://lore.kernel.org/all/cover.1740705776.git.nicolinc@nvidia.com/ * Drop sw_msi function pointer * Add a new private_data_owner tag in iommu_domain * Let iommu core call the two sw_msi implementations directly v1 https://lore.kernel.org/all/cover.1740600272.git.nicolinc@nvidia.com/ Thanks Nicolin Nicolin Chen (2): iommufd: Move iommufd_sw_msi and related functions to driver.c iommu: Drop sw_msi from iommu_domain Robin Murphy (1): iommu: Sort out domain user data drivers/iommu/dma-iommu.h | 14 ++ drivers/iommu/iommu-priv.h | 13 ++ drivers/iommu/iommufd/iommufd_private.h | 7 +- include/linux/iommu.h | 35 ++-- drivers/iommu/dma-iommu.c | 207 ++++++++++++------------ drivers/iommu/iommu-sva.c | 1 + drivers/iommu/iommu.c | 34 +++- drivers/iommu/iommufd/device.c | 127 +-------------- drivers/iommu/iommufd/driver.c | 125 ++++++++++++++ drivers/iommu/iommufd/hw_pagetable.c | 4 +- 10 files changed, 313 insertions(+), 254 deletions(-) base-commit: 5e9f822c9c683ae884fa5e71df41d1647b2876c6 -- 2.43.0