15 May
2025
15 May
'25
7:54 a.m.
From: Nicolin Chen nicolinc@nvidia.com Sent: Friday, May 9, 2025 11:03 AM
Repurpose the @__reserved field in the struct iommu_hw_info_arm_smmuv3, to an HW implementation-defined field @impl.
This will be used by Tegra241 CMDQV implementation on top of a standard ARM SMMUv3 IOMMU. The @impl will be only valid if @flags is set with an implementation-defined flag.
Thus in the driver-level, add an hw_info impl op that will return such a flag and fill the impl field.
Reviewed-by: Pranjal Shrivastava praan@google.com Signed-off-by: Nicolin Chen nicolinc@nvidia.com
Reviewed-by: Kevin Tian kevin.tian@intel.com