On Mon, 7 Dec 2020 17:35:53 +0800, Yong Wu wrote:
> Currently direct_mapping always use the smallest pgsize which is SZ_4K
> normally to mapping. This is unnecessary. we could gather the size, and
> call iommu_map then, iommu_map could decide how to map better with the
> just right pgsize.
>
> >From the original comment, we should take care overlap, otherwise,
> iommu_map may return -EEXIST. In this overlap case, we should map the
> previous region before overlap firstly. then map the left part.
>
> [...]
Applied to arm64 (for-next/iommu/misc), thanks!
[1/1] iommu: Improve the performance for direct_mapping
https://git.kernel.org/arm64/c/093b32a849b3
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
