Display system diagrams/description

[Richard Goedeken]

Thanks for the slide deck.  I also found some good information here:

http://dri.freedesktop.org/wiki/Documentation
http://dri.sourceforge.net/doc/design_low_level.html

Some of it's not current anymore though.  The reason I asked about this is that 
I kept seeing non-deterministic behaviors when testing and rebuilding the driver 
stack, and it's due to a lack of understanding about how everything works 
together and the dependencies between the components.  For example, I wasted a 
lot of time before finding out that:

* Both 2D and 3D drivers have a dependency on header files installed by the DRM
* The 3D drivers (mesa) have a dependency in the configure script on the 
pkgconfig file generated by DRM
* libGL.so may load the _dri.so library from a different place than X

The build/install process descriptions on the DRI and intellinuxgraphics pages 
are greatly helpful and appreciated, but it might be nice to also collect this 
sort of dependency information somewhere also, so that advanced testers will 
know how to build individual components properly and achieve deterministic results.

Richard

Jesse Barnes wrote:
>
> Hm, we've been meaning to put together a nice diagram that shows the various 
> interactions.  I took a stab at it for my LCA kernel miniconf talk, maybe it 
> will help?  Feel free to translate it into whatever is necessary for the 
> website, having something decent there could help a lot...
> 
> Jesse