> > it. Instead mark it's page table entries as copy on write. Get the > > physical address of the page and set it into the GART. Now the GPU can > > get to it with zero copies. When you are done with it, check and see > > if the app caused a copy on write, if so free the page, else just > > remove the COW flag. > > Is there evidence that this is/would be in fact faster?
no but I could practically guarantee anything is faster than the 3-4 copies a radeon texture goes through at the moment.. Dave. -- David Airlie, Software Engineer http://www.skynet.ie/~airlied / airlied at skynet.ie pam_smb / Linux DECstation / Linux VAX / ILUG person ------------------------------------------------------- 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
