Re: PCI domain stuff

[H. Peter Anvin]

Followup to:  <[e-mail]>
By author:    "David S. Miller" <[e-mail]>
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
-- 
<[e-mail]> at work, <[e-mail]> 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