Not really.
> STRUCTURE. For a great UI, we need DMA, vsync and devices communicating with
> each other directly or with little overhead. Why insist on doing this in
A video driver has to have extremely good latency, syscalls are overhead that
you generally do not want. There are specific things you want kernel help
with - agp management (and thus AGP DMA), context switching on DRI and maybe
some day interrupt handling for video vsync events and wiring them into
the XSync extension.
The rest is a bit questionable as a kernel space candidate, but if you
want it in kernel go ahead - XFree86 supports both models.
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