On Mon, 14 Mar 2005 08:52:46 +1100, Benjamin Herrenschmidt <[EMAIL PROTECTED]> wrote: > > > The best model would be to chuck the AGP/PCI Express interface on the > > board and have a hyperchannel instead. Hyperchannel provides full > > cache consistency without all of these flushing problems. The GPU > > really is another specialized CPU, give it a CPU class memory > > interface. > > You mean HyperTransport ? Well, PCI Express isn't far from that > neither...
Yes, HyperTransport. That's what I get for writing email while the babies are crying. Does PCI Express support a full cache coherency protocol like HyperTransport? So if the GPU touches a page of system memory, the system memory will get flushed out of the CPU cache? In that case we don't need to mark shared GPU/CPU memory as non-cachable. > > Ben. > > -- Jon Smirl [EMAIL PROTECTED] ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
