Re: Next round of console patches

Geert Uytterhoeven (Geert.Uytterhoeven@cs.kuleuven.ac.be)
Wed, 2 Sep 1998 21:16:59 +0200 (CEST)

On Wed, 2 Sep 1998, Vojtech Pavlik wrote:
> On Wed, Sep 02, 1998 at 06:56:06PM +0200, Gerd Knorr wrote:
> > Does it really mean the video memory and mmio overlap? Or is this some
> > larger area (say 16 MB space) for graphics I/O with the framebuffer (say 4
> > MB) at the start and 1k MMIO at the end and some unused space inbetween?
>
> Unfortunately for the Mach64s, the MMIO registers really overlap with the
> memory, and thus the last 1-2 kilobytes of the video ram are not useable.

But you can disable it. One day atyfb should do that.
<evil>
There doesn't seem to be a hurry, though, as no one uses it on little endian
architectures yet (AFAIK)
</evil>

Greetings,

Geert

--
Geert Uytterhoeven                     Geert.Uytterhoeven@cs.kuleuven.ac.be
Wavelets, Linux/{m68k~Amiga,PPC~CHRP}  http://www.cs.kuleuven.ac.be/~geert/
Department of Computer Science -- Katholieke Universiteit Leuven -- Belgium




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