[olpc-software] Which BIOS will OLPC have ?

Jim Gettys jg at laptop.org
Tue Jun 6 03:11:59 UTC 2006


Not clear how large off screen memory we want to dedicate.  I expect we
may want to do some tuning here, once we have some experience.

The geode graphics can only touch stuff inside the window; but memory to
memory copies aren't that expensive, so I'm not convinced that we'll
want to dedicate the full 16Mb.
                           - Jim



On Mon, 2006-06-05 at 12:40 -0400, Alan Cox wrote:
> On Mon, Jun 05, 2006 at 12:02:01PM -0400, Jim Gettys wrote:
> > Don't tell me we know of something you don't ;-)?
> 
> Oh I'm sure there is lots that you do
> 
> > http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;h=89c34b15f5d4f748de01fdb76755b169c75af92d;hb=e60a48f5ab35737118e19bc965c640900a842f02;f=drivers/video/geode/gxfb_core.c
> 
> Yes.. and I've read this code, and I've read the hardware docs. This code
> that does things like just return 16MB for frame buffersize rather than
> query it off the chipset...
> 
-- 
Jim Gettys
One Laptop Per Child





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