On Thu, Mar 17, 2005 at 10:08:15AM +0100, Geert Uytterhoeven wrote: > On Thu, 17 Mar 2005, Ville [iso-8859-1] Syrj??wrote: > > On Thu, Mar 17, 2005 at 12:12:58PM +1100, Benjamin Herrenschmidt wrote: > > > > I understand you can't have userspace program the accelerator while > > > > someone else is doing the same thing. Oh and I now understand that the > > > > same really applies to direct framebuffer access due to the swapper. > > > > > > And you can't have someone program the accelerator while somebody does > > > direct access neither. It's basically all exclusive. > > > > I haven't seen that happen on any hardware I own. Matrox specs explicitly > > mention that there is no need to synchronize accelerator and direct > > framebuffer access. > > Really?
Really. > I was always given Matrox as an example of a card that would lock up if > you access the frame buffer while the accelerator is busy... Apparently they didn't know what they were talking about. -- Ville Syrjälä [EMAIL PROTECTED] http://www.sci.fi/~syrjala/ ------------------------------------------------------- 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
