This is the correct answer.  :)

On Tue, 1 Feb 2005 17:54:20 -0500, Daniel Phillips <[EMAIL PROTECTED]> wrote:
> On Tuesday 01 February 2005 17:07, Rodolphe Ortalo probably wrote:
> > - with respect to command buffers, the biggest performance problem
> > nowadays is to move data fast from userspace to kernel space (without
> > revolutioning the kernel interface - too much - and without
> > compromising the performance opportunities offered by AGP or memory
> > remapping);
> 
> What is wrong with memory-mapping the DMA buffer?  This would not give
> access to the DMA control registers themselves.
> 
> Regards,
> 
> Daniel
>
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