On Tue, 2005-05-03 at 10:41 +0200, Jerome Glisse wrote: > > Now, the setting above has to be done the most intelligently you can > > based on 1) do you need 2 apertures with different swapper settings > > (typical of BE machines) or not, 2) what is your CONFIG_APER_SIZE > > strapping vs. how much VRAM you have ... You can see both kind of setups > > on Mac cards. > > Thx a lot for your explanation. A little question why 2 apertures are more > typical on BE devices ? Having 2 apertures is the best way to handle > dual head, isn't it (one for each head) ?
That allows you to have a different swapper setting for each aperture, which is handy when your host is just directly accessing the frame buffer. A BE host need a different setting most of the time for different bit depths. > If my memory isn't too corrupted you said that stupid pc card > haven't CONFIG_APER_SIZE set to half of memory, does this > really matter (I guess that this push you to map aperture to same > area) ? In fact, stupid Mac cards neither in some cases. If it is == to vram or == to vram/2, it's fine. Anything else can be source of trouble. Though in the case of little endian peecees, it may not be -that- bad. Ben. ------------------------------------------------------- This SF.Net email is sponsored by: NEC IT Guy Games. Get your fingers limbered up and give it your best shot. 4 great events, 4 opportunities to win big! Highest score wins.NEC IT Guy Games. Play to win an NEC 61 plasma display. Visit http://www.necitguy.com/?r=20 -- _______________________________________________ Dri-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dri-devel
