[PATCH v4 00/23] iommu: Further abstract iommu-pages

Joerg Roedel joro at 8bytes.org
Thu Apr 17 07:25:29 PDT 2025


> Jason Gunthorpe (23):
>   iommu/terga: Do not use struct page as the handle for as->pd memory
>   iommu/tegra: Do not use struct page as the handle for pts
>   iommu/pages: Remove __iommu_alloc_pages()/__iommu_free_pages()
>   iommu/pages: Make iommu_put_pages_list() work with high order
>     allocations
>   iommu/pages: Remove the order argument to iommu_free_pages()
>   iommu/pages: Remove iommu_free_page()
>   iommu/pages: De-inline the substantial functions
>   iommu/pages: Formalize the freelist API
>   iommu/riscv: Convert to use struct iommu_pages_list
>   iommu/amd: Convert to use struct iommu_pages_list
>   iommu: Change iommu_iotlb_gather to use iommu_page_list
>   iommu/pages: Remove iommu_put_pages_list_old and the _Generic
>   iommu/pages: Move from struct page to struct ioptdesc and folio
>   iommu/pages: Move the __GFP_HIGHMEM checks into the common code
>   iommu/pages: Allow sub page sizes to be passed into the allocator
>   iommu/amd: Change rlookup, irq_lookup, and alias to use kvalloc()
>   iommu/amd: Use roundup_pow_two() instead of get_order()
>   iommu/riscv: Update to use iommu_alloc_pages_node_lg2()
>   iommu: Update various drivers to pass in lg2sz instead of order to
>     iommu pages
>   iommu/pages: Remove iommu_alloc_page/pages()
>   iommu/pages: Remove iommu_alloc_page_node()
>   iommu/amd: Use iommu_alloc_pages_node_sz() for the IRT
>   iommu/vtd: Remove iommu_alloc_pages_node()

Applied to the new iommu-pages branch. I think this has the potential to
become a conflict nightmare, let's see how it goes in this cycle.

 	Joerg




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