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SubjectRe: mmap() implementation for pci_alloc_consistent() memory?
Leon Woestenberg wrote:
> Having dma_mmap_coherent() there is good for one or two archs, but how
> can we built portable drivers if the others arch's are still missing?

Easy: Resolve all issues, implement it for all the other arches, and add
it to the official DMA API.

> How would dma_mmap_coherent() look like on x86?

X86 and some others are always coherent; just use vm_insert_page() or
remap_page_range().


Regards,
Clemens


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