[PATCH] exa: add low VRAM option.

[Dave Airlie]

On Mon, 2009-09-28 at 10:13 +0200, Michel Dänzer wrote:
> On Mon, 2009-09-28 at 14:57 +1000, Dave Airlie wrote: 
> > From: Dave Airlie <airlied at linux.ie>
> > 
> > This basically stops any accel to non screen pixmap and non
> > window pixmaps when this option is enabled. It makes my
> > RN50 at least useable again under KMS.
> > 
> > I'm mainly producing this to open discussions on whether
> > there is a better way. I'm defining low VRAM as < 32MB.
> 
> There has to be a better way in the long run, but in the meantime this
> could be handled in the driver PixmapIsOffscreen hook?
> 

http://people.freedesktop.org/~airlied/scratch/radeon-return-FALSE-offscreen.patch

I tried this, it fails, server crashes doing a composite operation in
pixman.

maybe you need to explain a bit better why you think this should work,
as to me PixmapIsOffscreen seems like something you call possibly
after migrating the pixmap.

Dave.

>