XFree86 4.0 working as fbdev on Voodoo3

[Kostas Gewrgiou]

On Tue, 28 Mar 2000, Michael Schmitz wrote:

>
> > > Doesn't the tdfx driver work?
> > >
> >
> >   Beyond endianess problems the tdfx driver uses PIO which isn't
> > working under ppc right now (and unless the kernel people decide
> > on a way to export iobase to userland some time soon PIO might
> > take a while until it gets supported)
>
> Can't we use the MMIO aperture to access the PIO registers?
>

  Most of the PIO registers are available under MMIO as well,
unfortunately the crtc registers (and a few others) are only
available in the PIO aperture :(

  Kostas


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