Messages in this thread | | | From | "H. Peter Anvin" <> | Subject | Re: PCI domain stuff | Date | 30 Jun 2003 22:47:50 -0700 |
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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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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