Hi List!

Recently on the [SLE] (SuSE Linux English Mailing list) there were 
discussions over Xgl, and I was bashing ATI and specially nvidia (I have 
a TNT2, sorry).

But, this got my attention, and I don't know nothing about this subject:

------------->>>
 
Quote

"The DRI/UtahGLX support for nVidia is pretty much NV0x only (maybe
NV10/15 limitedly) and _lacks_ features for compiz last time I checked.

Those developments were based on -- and I wish more people knew this --
nVidia's *100% SOURCE CODE RELEASE WITH OPENGL/GLX ACCELERATION!*  Yes,
nVidia released 100% of the source code in the XFree86 3.3.x days,
changing identifiers and other things to protect IP.

Unfortunately, it didn't stop the lawyers from Intel, Microsoft and
others from sending cease'n desist letters.  That's when nVidia decided
to move the 3D code to an unified model across all OSes, with a dynamic
loader.

Intel's IP is at the heart of ATI and nVidia's kernel driver.  IP Intel
itself won't release for its own Linux drivers, but key to the unified
model.  Long story." /Quote

------------->>>

This is me :)

On Tue, 2006-05-23 at 10:08 -0300, Alvaro Kuolas wrote:

> > What's wrong with you people!
> > Were is your GNU GPL spirit?
>   
And this is the Quote:

"It's called intellectual property (IP).  IP is _always_ going to be an
issue with GPUs (Graphical Processing Unit), _period_.  Today's GPUs are
_more_powerful_ than CPUs.  It's like having a CPU with specialized
vector units.  And must is driven in specialized software.  A lot of
that IP is either Intel's or, increasingly via cross-licensing
agreements, Microsoft.

An additional problem at the _hardware_ level is the Intel platform
design itself.  The reason why ATI and nVidia need kernel drivers is
largely Intel's fault.  Intel continues to have _no_ "system"
interconnect and connects the GPU via an "peripheral" interconnect.  So
it has to use hacks in software for coherency between the GPU and CPUs.

If we all used AMD HyperTransport eXtension (HTX) for GPUs like we do
Infiniband and select other expansions, then we wouldn't have a problem.
But as of right now, except for a few non-commodity, multi-GPU,
specialized systems, HTX isn't available for GPUs.  And that's not
likely to change with Intel's control over the GPU industry --
especially when it comes to IP." /Quote

------------->>>

Sorry to bring this subject on the mailing list, but This is true? I though 
that Intel is the most open with its GPUs. ATI is with it's "hands tide" 
because they bought FireGL (and a lot of "IP" that can't be "disclosed"), I 
don't know for nvidia.


thanks()



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