Re: GGI Project Unhappy On Linux

Geert Uytterhoeven (Geert.Uytterhoeven@cs.kuleuven.ac.be)
Fri, 27 Mar 1998 17:50:42 +0100 (CET)

On Thu, 26 Mar 1998, Pavel Machek wrote:
> How does fbcon work with hardware acceleration? [Once we solve
> acceleration issue somehow, we can get rid of GGI and use fbcon
> instead. But - I'm not sure if such thing even can be done. With
> cards having critical registers neer non-critical ones :-( ]

>From user space, the X server mmaps the MMIO registers.

For text console acceleration (mainly scrolling), the kernel knows how to do
simple blits for some chipsets. If no blit routines are available, it will use
the CPU.

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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