On Wed, Oct 15, 2003 at 03:48:38PM -0700, Alex Deucher wrote: > there's also this driver: > > http://www.instmath.rwth-aachen.de:8000/linux/G450-PCI/ > > I'm not sure how the G4/550 and G200 differ in regard to PCI vs. AGP...
AFAIK G450 PCI cards have an AGP-PCI bridge on the card which could do address translation just like the AGP GART. G200/G400 don't have that bridge. I'm not sure if the agpgart driver in that link you posted uses that bridge or some generic PCI GART stuff available on some architectures. The G-series chips themselves are really wonderful because you just point them to an address and tell them if that memory is AGP,PCI or local framebuffer and then the chip can do anything with that memory. Some time ago I did a patch for DirectFB which put off-screen surfaces to AGP (or PCI) memory. Unfortunately now that DirectFB has 3D support through DRI I can't really finish that patch. agpgart has a stupid one user limitation and the bind ioctl isn't really multi-user friendly either. What happened to that agpgart 2.0 stuff? Does it lift these restrictions? -- Ville Syrjälä [EMAIL PROTECTED] http://www.sci.fi/~syrjala/ ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. SourceForge.net hosts over 70,000 Open Source Projects. See the people who have HELPED US provide better services: Click here: http://sourceforge.net/supporters.php _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
