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    SubjectRe: [4/7] Xen VMM patch set : /dev/mem io_remap_page_range for CONFIG_XEN
    On Tue, 30 Nov 2004 04:08:12 +0100
    Andrea Arcangeli <andrea@suse.de> wrote:

    > There's also an issue with io_remap_page_range where sparc has 6 args
    > while everyone else has 5 args.

    It's there to handle larger than 32-bit I/O physical addresses
    on sparc32.

    WLI's work on remap_pfn_range() was meant to eventually turn
    the various io_remap_page_range() routines over the be pfn
    based as well. Then sparc32 wouldn't need that extra arg
    any longer.
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