On Tue, Nov 15, 2005 at 08:48:53AM -0800, Ian Romanick wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Keith Whitwell wrote: > > > machine. Was the test on the same machine? Do unichrome systems with > > agp slots exist? > > Heck yes! The K8M8x0 and PM8x0 chips, for Athlon64 and Pentium4 > respectively, support AGP slots. I think the original CLE266 is the > only one that doesn't. > > > The ways to faster upload performance on unichrome would seem to be: > > 1) explore the dma work that has been done recently in the X11 driver > > and see if that can be brought over for texture uploads. > > 2) investigate the technique of uploading by pulling texture data > > into the GTT without performing any copying. > > > > Probably (2) is what you're looking for, but there are no open-source > > examples of how to do this. Kudos will await if you figure it out & > > implment a workable scheme - it's mainly a matter of kernel hacking, I > > don't think the hardware issues are particularly difficult. > > Many kudos. ;) > > > It's worth noting that the unichrome is not a radeon, and the cpu's on > > those boxes are quite constrained compared to fast P4's and Athlons. > > This will have an effect on how far you can take this. > > That's only true for the original CLE266 and, perhaps, the CN400 based > systems. > There's also a commell board with a geode running off a KM400. And the new 0x3344 unichrome can also be part of the CN700 (?), which is meant to be coupled with VIAs C7.
The only device you can be sure of having a considerably meaty cpu is K8x800 (i've adopted the name VT3108, after pci-ids), but that one has the typical IGP bandwidth problem with the memory sitting off the cpu. Luc Verhaegen. ------------------------------------------------------- This SF.Net email is sponsored by the JBoss Inc. Get Certified Today Register for a JBoss Training Course. Free Certification Exam for All Training Attendees Through End of 2005. For more info visit: http://ads.osdn.com/?ad_id=7628&alloc_id=16845&op=click _______________________________________________ Mesa3d-dev mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
