> > Note that with huge VRAM sizes appearing, we also want to make sure that > > wheverver we put it won't overlap the 32 bits space since CONFIG_MEM_SIZE > > can be huge nowadays... and if it does, put the GART just _before_ the > > framebuffer instead. Again, this is all cards space, not bus view, so that > > shouldn't matter where we put these things. > > Another constraint is that the GART doesn't overlap with the bus address > range of system RAM.
Do we still care about that ? Do we ever do DMA from the card to system RAM outside of the AGP context ? I think a good strategy is to try to put the AGP aperture after the video RAM, and if that doesn't fit, just before. That would keep us "high enough" in most cases to avoid system RAM, but we can't guarantee 100% here. Ben. ------------------------------------------------------- This SF.Net email is sponsored by: NEC IT Guy Games. Get your fingers limbered up and give it your best shot. 4 great events, 4 opportunities to win big! Highest score wins.NEC IT Guy Games. Play to win an NEC 61 plasma display. Visit http://www.necitguy.com/?r=20 -- _______________________________________________ Dri-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dri-devel
