Re: PCI domain stuff

From: H. Peter Anvin (
Date: Tue Jul 01 2003 - 00:47:50 EST

Followup to: <>
By author: "David S. Miller" <>
In newsgroup:
> 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


<> at work, <> 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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