xf86-video-intel: Any 3D app is slow in resolution higher than 800x600 with UXA+DRI2

[Vasily Khoruzhick]

On 26 January 2009 22:02:30 Jesse Barnes wrote:
> On Sunday, January 25, 2009 12:33 pm Vasily Khoruzhick wrote:
> > Hi, it seems I've found one more bug for gma950+uxa+dri2 configuration:
> >
> > Any 3D application is _really_ slow if it runs in window with size higher
> > than 800x600.
> >
> > Steps to reproduce:
> >
> > 1. Use gma950 hardware with xf86-video-intel from git and mesa from git,
> > xorg-server-1.5.99.901, libdrm from git, 2.6.28 kernel + 6 patches
> > 2. Download and install secret maryo chronicles (or any game you like
> > that uses 3D)
> > 3. Disable fullscreen mode and set resolution to 800x600 - game should
> > run smoothly
> > 4. Disable fullscreen mode and set resolution to 1024x768 (or higher) -
> > game should became unplayable.
> >
> > Same issue with compiz.
>
> The patchset I just posted to intel-gfx might help with this
> (http://lists.freedesktop.org/archives/intel-gfx/2009-January/001172.html);
> it allows for tiled rendering on 9xx chips w/DRI2.  On some machines it
> makes a 10x difference.

Sorry, but on which kernel I should apply first patch? It doesn't apply on 
2.6.28 + 6 patches (2008 q4 :)) 
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