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Thu, 17 Oct 2024 10:01:30 -0700 Date: Thu, 17 Oct 2024 10:01:28 -0700 From: Nicolin Chen To: Jason Gunthorpe CC: , , , , , , , , , , , , , , , , , , , , Subject: Re: [PATCH v3 03/11] iommufd: Introduce IOMMUFD_OBJ_VIOMMU and its related struct Message-ID: References: <88114b5c725bb3300a9599d3eeebded221a0b1f9.1728491453.git.nicolinc@nvidia.com> <20241017163359.GB3559746@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20241017163359.GB3559746@nvidia.com> X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN1PEPF0000468D:EE_|DM6PR12MB4233:EE_ X-MS-Office365-Filtering-Correlation-Id: 62a64513-c16e-4234-fdd6-08dceecd62eb X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|7416014|36860700013|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?7PbK/Zvgy6n2DzGvUUvTUy6Ai2lK4Sa3qh6cRD1U/YZu0Mo7jgmEfNUlFLMf?= =?us-ascii?Q?rT2JlEYch2onIJQRSDmLnB/Bt5vzn/0M6rg3iROi3Ri+xsuTbUnAvbsvn6fS?= =?us-ascii?Q?sZFXw9tZdJzHTmdzsKsHR0kiOWzui+HPRWhmmhLLwC+pkyiNfXpS9ueh3RrH?= =?us-ascii?Q?+3eNeXSNtHWc8fUfa/68nw84ODOG1VISbu3JK/aMFIcP6SP5b3c1W2smPsuD?= =?us-ascii?Q?PDiLENpEm7Zw4u/uGaUr4cXPCFSW4yBbpALigy0iXnjmGS573QZ3I7jYi/5+?= =?us-ascii?Q?IQNk6+PYHWY/mvmaQ9m8sFYLUQW4Ki2e/2wZVKZGKHbvKfDofmzo+mKh2sk/?= =?us-ascii?Q?nY8OpA7/NdwxXxkm0E7NScmy+gViIP5wJbIqJEzPGK5V50TJKy4ug9x4yTYF?= =?us-ascii?Q?06xNAuTAB+z1IDrCRk0W/yN7IOCLwT5HcHp1AaBxWFVH7cdeIT6vng3iX+bd?= =?us-ascii?Q?kKgoW4xARcJKAfL6LUcwjvuRKbfhRblJs+IGrJMF+Qp4yAzNo6hGvDf6nNG1?= =?us-ascii?Q?tlQzWEe/A9PRjMuxf0fPYnNHMfmt99fn40DadkU8oGOWGhOJdYA8JLpCCYS1?= =?us-ascii?Q?TsFsv9ya4hXlWRX9CxkMm6Vs3+hFsNqLMkoJZn24F8766zJBtfcAHPQYnhvz?= =?us-ascii?Q?7bIz9MWCgv6Yg5xnluPucpvPMTHRPAiTJLNlNQvTudi5FVGR6ZEdqk2sXuoY?= =?us-ascii?Q?UnRM/Ds/8kZBccwjG2EPMK5wp4fmZLGhfJZHgH2dhNSWbIJ9tpPuLbCfAP8Q?= =?us-ascii?Q?1BQ8XHM2V1XXzr2//JzOM7+XEp9hRFkBhIKCJdqj/4226YZverYdKewC7CDc?= =?us-ascii?Q?ltcwOHRyksw3BI1fohcJbOgXelgjhJP52f44gbPG/EXugHhq1U2HJfae9oF9?= =?us-ascii?Q?6W2BXJe/p9LJU06ImSPpclxsRS0/xrhrMjdyv7WL0AeZNEmBaK9UYEadeV6g?= =?us-ascii?Q?pDOqisdQFROi3a62b1cMGtg8wxW8sN1gsdLuuBWNebON/CKaFEI2mvDZwXBd?= =?us-ascii?Q?HMXK6/GAI68PeQ7niJ1l8fIW09ksYOa64q1d+b43iTI+deIcrqRRA+2nUVA8?= =?us-ascii?Q?00JkmeWnU2rJImjvR/Y3Vus3Rph/AkZs9waeHar2ksRFxJl/4uohB9XVpRGZ?= =?us-ascii?Q?c6i4zjPpRp1zeaHECdFAiorSmpZ7JcdAV4rd2NE/K4V83DS/XkWCBPrjqbXj?= =?us-ascii?Q?iJh1q4grm9z8Mvi437OrqeIHbxxaM6TyWqksE8DY1t9Mo1Y7ZSjffhSshEMr?= =?us-ascii?Q?qCqvTwhI5KoidEypJdsdnl4SsdO3Gqv7FC6tw160np3VaBz+90A18847O+ea?= =?us-ascii?Q?4GNObXrYfDXI+Uhkx3ocKtdjDYzW5OuUzsVEk4KVUcPgwUBI8oUZ1fAkhG7w?= =?us-ascii?Q?4BI49Nyw9BEkOoBX0GizIz5Iv3Y1s6jO5iOCDj1k9mwOHcblCg=3D=3D?= X-Forefront-Antispam-Report: CIP:216.228.118.232;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge1.nvidia.com;CAT:NONE;SFS:(13230040)(1800799024)(376014)(7416014)(36860700013)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Oct 2024 17:01:47.3701 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 62a64513-c16e-4234-fdd6-08dceecd62eb X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN1PEPF0000468D.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4233 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241017_100155_229620_0D32FD7E X-CRM114-Status: GOOD ( 12.17 ) 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 Thu, Oct 17, 2024 at 01:33:59PM -0300, Jason Gunthorpe wrote: > > diff --git a/drivers/iommu/iommufd/viommu_api.c b/drivers/iommu/iommufd/viommu_api.c > > new file mode 100644 > > index 000000000000..c1731f080d6b > > --- /dev/null > > +++ b/drivers/iommu/iommufd/viommu_api.c > > Let's call this file driver.c to match CONFIG_IOMMUFD_DRIVER Would this make its scope too large that it might feel odd to have the iova_bitmap.c in a separate file? > /* > * Helpers for IOMMU driver to allocate driver structures that will be freed by > * the iommufd core. The free op will be called prior to freeing the memory. > */ > #define iommufd_viommu_alloc(ictx, drv_struct, member, viommu_ops) \ > ({ \ > struct drv_struct *ret; \ > \ > static_assert( \ > __same_type(struct iommufd_viommu, \ > ((struct drv_struct *)NULL)->member)); \ > static_assert(offsetof(struct drv_struct, member.obj) == 0); \ > ret = (struct drv_struct *)iommufd_object_alloc_elm( \ > ictx, sizeof(struct drv_struct), IOMMUFD_OBJ_VIOMMU); \ > ret->member.ops = viommu_ops; \ > ret; \ > }) OK. Will try with this. Thanks Nicolin