diff options
| author | Yi Liu <yi.l.liu@intel.com> | 2023-10-26 07:39:34 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2023-10-26 17:15:57 +0300 |
| commit | 2bdabb8e82f564d19eeeb7c83e6b2467af0707cb (patch) | |
| tree | e7cb91fa47868cfa9ee194c2b078fb5542b865c2 /drivers/iommu/iommufd/hw_pagetable.c | |
| parent | b5021cb264e67baf051569a41debe277c279952b (diff) | |
| download | linux-2bdabb8e82f564d19eeeb7c83e6b2467af0707cb.tar.xz | |
iommu: Pass in parent domain with user_data to domain_alloc_user op
domain_alloc_user op already accepts user flags for domain allocation, add
a parent domain pointer and a driver specific user data support as well.
The user data would be tagged with a type for iommu drivers to add their
own driver specific user data per hw_pagetable.
Add a struct iommu_user_data as a bundle of data_ptr/data_len/type from an
iommufd core uAPI structure. Make the user data opaque to the core, since
a userspace driver must match the kernel driver. In the future, if drivers
share some common parameter, there would be a generic parameter as well.
Link: https://lore.kernel.org/r/20231026043938.63898-7-yi.l.liu@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Co-developed-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/iommu/iommufd/hw_pagetable.c')
| -rw-r--r-- | drivers/iommu/iommufd/hw_pagetable.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iommu/iommufd/hw_pagetable.c b/drivers/iommu/iommufd/hw_pagetable.c index 6bce9af0cb8d..198ecbd536f7 100644 --- a/drivers/iommu/iommufd/hw_pagetable.c +++ b/drivers/iommu/iommufd/hw_pagetable.c @@ -108,7 +108,8 @@ iommufd_hwpt_paging_alloc(struct iommufd_ctx *ictx, struct iommufd_ioas *ioas, hwpt_paging->ioas = ioas; if (ops->domain_alloc_user) { - hwpt->domain = ops->domain_alloc_user(idev->dev, flags); + hwpt->domain = + ops->domain_alloc_user(idev->dev, flags, NULL, NULL); if (IS_ERR(hwpt->domain)) { rc = PTR_ERR(hwpt->domain); hwpt->domain = NULL; |