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    SubjectMapping non-prefetchable memory


    I have some questions about mapping PCI device memory in Linux
    2.0.x. My device requires that the memory be mapped non-prefetchable
    (i.e. non-cached). I am using the vremap(phyAddr, size) to get the
    virtual address but is this memory cached or non-cached? There does
    not seem to be any options to control this.

    Also, just to confirm this, in 2.0.x world kmalloc() returns
    contiguous, same phy as virt, locked, non-cached memory -- right?

    I know this will change in 2.1.X but I am debugging my driver now and
    don't want to move to 2.1.x at this time.



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