6.4.2 and 6.5

[Michel Dänzer]

On Tue, 2006-05-16 at 11:35 -0600, Marcelo E. Magallón wrote: 
> On 5/16/06, Michel Dänzer <daenzer at debian.org> wrote:
> 
> configs/linux-dri-ppc says:
> 
> OPT_FLAGS = -Os -mcpu=603
> 
> What does that map to? G4? G5?  

Nah, the 603 was one of the first PowerPC CPUs, even before the G3 aka
750. I don't think this will prevent the generated code from running on
anything relevant, if anything.

> Does gcc 4 support altivec in any way?

Yes, pretty much to the same extent as it does the SSE variants and
friends AFAIK.

>  Would it be worth enabling that?  

Not sure. I doubt the automatic vectorization would help much, assembly
optimizations such as for x86 would probably be in order.

> Do other non-Mac PowerPCs have any use for optimized DRI drivers?

Not sure what you're getting at here (not all Macs in common use have
Altivec), but yes. At least on Pegasos, the DRI is working fine with
Radeons.


-- 
Earthling Michel Dänzer           |          http://tungstengraphics.com
Libre software enthusiast         |          Debian, X and DRI developer