2010/1/11 Jerome Glisse <[email protected]>: > On Sun, Jan 10, 2010 at 07:06:41PM +0100, José JORGE wrote: >> A Segunda 04 Janeiro 2010 23:46:32 José JORGE você escreveu: >> > The question : is it possible by myself to change the radeon driver to >> > ignore a memory zone of a video card? Something like the badram patch for >> > linux kernel? >> Just if someone had the time to answer simply forget it, or maybe done with >> lots of work, I'd thank him... > > It's doable, i think best way would be to allocate a serie of BO > covering the damaged area using the new ttm allocator which allow > to specify addr of BO. Then you need to pin all those BO. Maybe > the trickier part is to design the commandline argument to allow > such thing.
Most GPU memory is interleaved so if one chip is broken you can't just ignore it linearly, its probably possible to reconfigure the memory controller but I can't imaging a 256-bit memory bus working at 192-bit so well, and you'd lose more than one RAM chip. Dave. _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
