On Mon, Dec 10, 2001 at 09:19:16AM -0800, Gareth Hughes wrote: > On Mon, Dec 10, 2001 at 12:39:57AM -0800, Philip Brown wrote: > > So I'm looking through the AGP stuff, still learning... > > and it seems that there's a whole lot of redundancy in the current API. > > ... > > The allocate and bind parts seem to be useless, since the program has > > to call mmap() anyway [right?] > > Every time you update the GATT, you have to flush the cache and/or > TLBs. This is expensive. Therefore, you allocate and bind the pages > you'll use, and mmap() just returns the right pages when needed.
But I thought that GATT is simply a scatter/gather table, so you only have to update the GATT when you "allocate and bind" pages. Then, if you "allocate and bind" the whole range at once, you're done, and you dont have to do any cache flushing from that point on. So sounds like you are agreeing with me?? :-> _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
