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    SubjectRe: Cache coherency and snooping
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       From: Ralf Baechle <ralf@linux-mips.org>
    Date: Wed, 14 Aug 2002 10:16:54 +0200

    If the latter was your intension then ioremap_nocache()
    will work as intended.

    There are platforms btw where non-L2-cacheable access to RAM is
    impossible. It will hang the system in fact if one asked the cpu to
    do it.
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