On Wed, 2005-03-16 at 15:35 -0500, Vladimir Dergachev wrote: > > On Wed, 16 Mar 2005, Michel [ISO-8859-1] Dnzer wrote: > > > > > Disclaimer: I don't pretend to understand 100% how all this stuff works > > either, but I think my understanding has improved a little recently. :) > > Michel, I think we are misunderstanding each other. > > I am not talking about synchronization of drawing operations, I am talking > about hardware limitations.
So am I. > I am quite certain, that, at least on mach64 hardware, an attempt to > access framebuffer by CPU while the GUI engine is active will result in a > hard lockup. If this was true with Radeons, you'd get a lockup every time the hardware cursor shape changes. I guess the memory controller has improved... -- Earthling Michel DÃnzer | Debian (powerpc), X and DRI developer Libre software enthusiast | http://svcs.affero.net/rm.php?r=daenzer ------------------------------------------------------- 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_ide95&alloc_id396&op=click -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
