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23022f5456
- new two step DMA mapping API, which is is a first step to a long path to provide alternatives to scatterlist and to remove hacks, abuses and design mistakes related to scatterlists; this new approach optimizes some calls to DMA-IOMMU layer and cache maintenance by batching them, reduces memory usage as it is no need to store mapped DMA addresses to unmap them, and reduces some function call overhead; it is a combination effort of many people, lead and developed by Christoph Hellwig and Leon Romanovsky -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQSrngzkoBtlA8uaaJ+Jp1EFxbsSRAUCaDRXIQAKCRCJp1EFxbsS RG8tAP9kgjIwMoJqfr6DC8yYraIIUuNDyhb/fZ9vPppW6Cb7aAD/cg8udjrsUu3h iAZBIHkYuWmkx8JG7t5/lqBc4AOC1AA= =F3TU -----END PGP SIGNATURE----- Merge tag 'dma-mapping-6.16-2025-05-26' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux Pull dma-mapping updates from Marek Szyprowski: "New two step DMA mapping API, which is is a first step to a long path to provide alternatives to scatterlist and to remove hacks, abuses and design mistakes related to scatterlists. This new approach optimizes some calls to DMA-IOMMU layer and cache maintenance by batching them, reduces memory usage as it is no need to store mapped DMA addresses to unmap them, and reduces some function call overhead. It is a combination effort of many people, lead and developed by Christoph Hellwig and Leon Romanovsky" * tag 'dma-mapping-6.16-2025-05-26' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux: docs: core-api: document the IOVA-based API dma-mapping: add a dma_need_unmap helper dma-mapping: Implement link/unlink ranges API iommu/dma: Factor out a iommu_dma_map_swiotlb helper dma-mapping: Provide an interface to allow allocate IOVA iommu: add kernel-doc for iommu_unmap_fast iommu: generalize the batched sync after map interface dma-mapping: move the PCI P2PDMA mapping helpers to pci-p2pdma.h PCI/P2PDMA: Refactor the p2pdma mapping helpers |
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| .. | ||
| irq | ||
| wrappers | ||
| asm-annotations.rst | ||
| assoc_array.rst | ||
| boot-time-mm.rst | ||
| cachetlb.rst | ||
| cgroup.rst | ||
| circular-buffers.rst | ||
| cleanup.rst | ||
| cpu_hotplug.rst | ||
| debug-objects.rst | ||
| debugging-via-ohci1394.rst | ||
| dma-api-howto.rst | ||
| dma-api.rst | ||
| dma-attributes.rst | ||
| dma-isa-lpc.rst | ||
| entry.rst | ||
| errseq.rst | ||
| floating-point.rst | ||
| folio_queue.rst | ||
| genalloc.rst | ||
| generic-radix-tree.rst | ||
| genericirq.rst | ||
| gfp_mask-from-fs-io.rst | ||
| idr.rst | ||
| index.rst | ||
| kernel-api.rst | ||
| kobject.rst | ||
| kref.rst | ||
| librs.rst | ||
| local_ops.rst | ||
| maple_tree.rst | ||
| memory-allocation.rst | ||
| memory-hotplug.rst | ||
| min_heap.rst | ||
| mm-api.rst | ||
| netlink.rst | ||
| packing.rst | ||
| padata.rst | ||
| parser.rst | ||
| pin_user_pages.rst | ||
| printk-basics.rst | ||
| printk-formats.rst | ||
| printk-index.rst | ||
| protection-keys.rst | ||
| rbtree.rst | ||
| refcount-vs-atomic.rst | ||
| swiotlb.rst | ||
| symbol-namespaces.rst | ||
| this_cpu_ops.rst | ||
| timekeeping.rst | ||
| tracepoint.rst | ||
| unaligned-memory-access.rst | ||
| union_find.rst | ||
| watch_queue.rst | ||
| workqueue.rst | ||
| xarray.rst | ||