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    SubjectRe: Uncacheable memory?
    Hi,

    On Wed, 28 Jul 1999, Ingo Molnar wrote:

    >
    > On Wed, 28 Jul 1999, Philip Blundell wrote:
    >
    > > >Is there a way to allocate memory in the kernel that you could mark as
    > > >uncacheable? I'm currently running with 2.2.10, and would like to mark
    > > >a region of memory I acquire with kmalloc as uncacheable. Thanks.
    > >
    > > You can't "mark" an area as uncacheable as such, but you can create an
    > > alias mapping for it that is uncached. The SA-1100 framebuffer driver
    > > does this, I think. Let me know if you have trouble figuring out how to
    > > do it.
    >
    > also there is ioremap_nocache() ...
    >
    I checked, and this doesn't appear to be implemented for the ARM
    EBSA-285 architecture. It is #defined to be a plain old ioremap.

    > -- mingo
    >

    --
    Kyle Mestery | StorageTek's Storage Networking Group
    mestery@visi.com | http://www.freebsd.org/
    mestery@netwinder.org | http://www.netwinder.org/
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