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    From
    SubjectRe: PCI domain stuff
    Date
    Followup to:  <1057034041.31826.1.camel@rth.ninka.net>
    By author: "David S. Miller" <davem@redhat.com>
    In newsgroup: linux.dev.kernel
    >
    > On Mon, 2003-06-30 at 21:05, Matthew Wilcox wrote:
    > > We need to support mmaping device resources. I think this actually
    > > merits being a first class sysfs concept -- turn a struct resource into
    > > an mmapable file. The current fugly ioctl really has to go.
    >
    > What's so wrong with the "fugly ioctl"?
    >
    > What can't you do with it?
    >
    > You can even mmap the complete I/O space of a PCI bus (in order to poke
    > around in implicit I/O resources like the VGA registers that a PCI card
    > might respond to).
    >

    Presumably only on architectures which use memory-mapped IO address
    space.

    -hpa
    --
    <hpa@transmeta.com> at work, <hpa@zytor.com> in private!
    "Unix gives you enough rope to shoot yourself in the foot."
    Architectures needed: ia64 m68k mips64 ppc ppc64 s390 s390x sh v850 x86-64
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