Hi, i found a bug in uninorth-agp.c, function uninorth_fetch_size.
the line size <http://lxr.free-electrons.com/ident?i=size> =memparse <http://lxr.free-electrons.com/ident?i=memparse>(aperture <http://lxr.free-electrons.com/ident?i=aperture>, &aperture <http://lxr.free-electrons.com/ident?i=aperture>) >> 20; always sets size to zero which makes the driver allocate the default size of 256 MB which is obviously too large for older uninorth revisions. I split the line into memparse and shifting and inserted diagnostic messages, output with uninorth_agp.aperture = 32 as boot parameter: Feb 15 19:12:44 mac-mini kernel: [ 2.568636] agpgart-uninorth 0000:00:0b.0: size in uninorth_fetch_size after memparse: 32 Feb 15 19:12:44 mac-mini kernel: [ 2.568642] agpgart-uninorth 0000:00:0b.0: size after >> 20: 0 It would be nice if a patch could be produced so i can experiment with different aperture sizes without having to rebuild the kernel every time :-) Cheers Jochen -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20150215/1072b103/attachment.html>
