Messages in this thread | | | From | Christoph Hellwig <> | Subject | provide in-place uncached remapping for dma-direct v2 | Date | Mon, 24 Feb 2020 11:44:40 -0800 |
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Hi all,
this series provides support for remapping places uncached in-place in the generic dma-direct code, and moves openrisc over from its own in-place remapping scheme. The arm64 folks also had interest in such a scheme to avoid problems with speculating into cache aliases.
Also all architectures that always use small page mappings for the kernel and have non-coherent DMA should look into enabling this scheme, as it is much more efficient than the vmap remapping.
Changes since v1: - share the arch hook for inline remap and uncached segment support
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