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    SubjectRE: Contiguous Memory Allocator on HIGHMEM

    On Tuesday, February 07, 2012 10:06 AM cp.zou wrote:

    > Hello everyone!
    > I'm recently learning CMA, and I want to implement support for
    > contiguous memory areas placed in HIGHMEM zone,do you have any suggestions?

    CMA memory management core (migration and allocation of pages) should support
    areas placed in HIGHMEM without any additional works. The main limitation is
    in the DMA-mapping framework. Right now it makes certain assumptions about page
    mappings to simplify allocation process. You need to add support for dynamic
    mappings there.

    Best regards
    Marek Szyprowski
    Samsung Poland R&D Center

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