On Tue, Jul 04, 2006 at 02:42:03PM +0200, Arnd Bergmann wrote:
> On Tuesday 04 July 2006 01:35, Matthew Wilcox wrote:
> > We don't (yet) have a CONFIG_MMIO. ?If we were to have one, I would
> > expect it to be akin to SCSI_SYM53C8XX_MMIO, VIA_RHINE_MMIO,
> > SUNDANCE_MMIO and TULIP_MMIO. ?ie indicating a preference between PIO
> > and MMIO rather than indicating the availability of MMIO.
> 
> Hmm, maybe my terminology wasn't so good, at least you misunderstood
> what I wanted to express. PIO is more or less a 386ism, so I tend to
> view that as a special case of MMIO. The point with  s390 is that there
> is neither PIO nor MMIO, which really makes it impossible to use most
> of the device drivers, even if you could connect the hardware ;-).

I understood what you wanted; I was just explaining why it's a bad name.
CONFIG_STD_IO might be a good name.  CONFIG_PCI_IO might be confusing.

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