[PATCH v7 05/15] iommupt: Add iova_to_phys op

Pasha Tatashin pasha.tatashin at soleen.com
Sat Oct 25 08:29:51 PDT 2025


On Thu, Oct 23, 2025 at 2:20 PM Jason Gunthorpe <jgg at nvidia.com> wrote:
>
> iova_to_phys is a performance path for the DMA API and iommufd, implement
> it using an unrolled get_user_pages() like function waterfall scheme.
>
> The implementation itself is fairly trivial.
>
> Tested-by: Alejandro Jimenez <alejandro.j.jimenez at oracle.com>
> Reviewed-by: Kevin Tian <kevin.tian at intel.com>
> Signed-off-by: Jason Gunthorpe <jgg at nvidia.com>

Reviewed-by: Pasha Tatashin <pasha.tatashin at soleen.com>



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