On 6/14/2025 3:14 PM, Nicolin Chen wrote:
The hw_info uAPI will support a bidirectional data_type field that can be
used as an input field for user space to request for a specific info data.

To prepare for the uAPI update, change the iommu layer first:
  - Add a new IOMMU_HW_INFO_TYPE_DEFAULT as an input, for which driver can
    output its only (or firstly) supported type
  - Update the kdoc accordingly
  - Roll out the type validation in the existing drivers

Reviewed-by: Kevin Tian<kevin.t...@intel.com>
Reviewed-by: Jason Gunthorpe<j...@nvidia.com>
Signed-off-by: Nicolin Chen<nicol...@nvidia.com>

Reviewed-by: Lu Baolu <baolu...@linux.intel.com>

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