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    SubjectRe: Reserving a fixed physical address page of RAM.
    Jon Ringle wrote:
    > Hi,
    >
    > I need to reserve a page of memory at a specific area of RAM that will
    > be used as a "shared memory" with another processor over PCI. How can I
    > ensure that the this area of RAM gets reseved so that the Linux's memory
    > management (kmalloc() and friends) don't use it?
    >
    > Some things that I've considered are iotable_init() and ioremap().
    > However, I've seen these used for memory mapped IO devices which are
    > outside of the RAM memory. Can I use them for reseving RAM too?
    >
    > I appreciate any advice in this regard.

    Sounds to me like dma_alloc_coherent is what you want..

    --
    Robert Hancock Saskatoon, SK, Canada
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    Home Page: http://www.roberthancock.com/

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