[Mesa-dev] [PATCH] i965: Compile the driver with -march=core2.

[Roland Scheidegger]

Am 26.01.2013 18:26, schrieb Daniel Vetter:
> On Fri, Jan 25, 2013 at 11:03:35PM -0800, Kenneth Graunke wrote:
>> On 01/25/2013 03:13 PM, Roland Scheidegger wrote:
>>> I'm quite sure there are g965 boards around which indeed support Pentium
>>> 4 (and P4-based Celerons) (but yes I guess cmov and at least sse2 are
>>> safe - not that the p4 had a usable cmov implementation as it was
>>> incredibly slow IIRC but it should at least work).
>>>
>>> Roland
>>
>> Sadly I think Roland is right here: the Intel 946GZ is a Gen4 chip
>> that appears on motherboards which claim to support Pentium 4s.
>>
>> That's crazy...I've never heard of such a machine.
> 
> I think it even took us a few attempts to put that crazy pciid into the
> right tables in the kernel/ddx/mesa - originally we've marked it as gen3
> until someont tried to actually use it. Marketing and production
> differention win again :(
> -Daniel
> 

Though even the ordinary g965 officially supports P4:
http://ark.intel.com//products/27729/Intel-82G965-Graphics-and-Memory-Controller#compatibility

However, the only pre-prescott chips I can spot are the P4 EE editions
(Gallatin which should be the same as Northwood IIRC except the L3) for
some reason.

Roland