On Wed, 5 May 2004, Jon Smirl wrote:
> I'm putting together a document for Kernel Summit that describes the issues
> around graphics device drivers. The kernel developers are currently making first
> pass comments on it. As soon as I fold their comments in I'll post it to
> fb-dev, dri-dev and wherever else is appropriate for the next round of comments.
> Nobody is proposing final solutions yet, I'm just trying to collect everyone's
> opinion.
>
> Memory management of AGP/VRAM space is identified as a problem area but nobody
> has proposed any solution for it. Any solution needs to take into account FB,
> DRM, mesa-solo and existing Xfree. There have been a few minor comments both
> ways for doing it in a driver and a library.
This affects video capture as well. It would be nice to be able to reserve
chunks of video ram from kernel-space.
best
Vladimir Dergachev
>
> --- Alex Deucher <[EMAIL PROTECTED]> wrote:
> >
> > --- Jon Smirl <[EMAIL PROTECTED]> wrote:
> > > Is there a document describing how memory management is handled for
> > > the overall
> > > AGP/VRAM space? I've found where texture memory is handled, but who
> > > is
> > > allocating space for framebuffers on multi-head cards?
> >
> > Right now the framebuffer is managed in the DDX. Alan Hourihane and
> > Ian Romanick both have done some work on new improved memory managers
> > for X and the DRI.
> >
> > >
> > > If we were to redo the memory management code to support mesa-solo
> > > (ie no X
> > > present) what would need to be changed? Should this code be in the
> > > driver or
> > > user space?
> >
> > That's a good question.
> >
> > Alex
> >
> > >
> > > =====
> > > Jon Smirl
> > > [EMAIL PROTECTED]
> > >
> > >
> >
> >
> >
> >
> >
> > __________________________________
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> =====
> Jon Smirl
> [EMAIL PROTECTED]
>
>
>
>
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