- fixes crashes when changing video modes/switching away from X on ppc
 - fixes random crashes when scrolling in e.g. vi
 - improves on the NV30 support
 - reintroduces noaccel (not perfect but helps a lot for debugging)
 - converts MODULE_PARM to module_param
 - cleans up some printks, FB_ACCELF_TEXT cruft
Most of this is taken from either XFree86 4.3 or BenH's 2.4 ppc tree.

From: Antonino Daplas <adaplas@pol.net>
 - adjust pixmap->scan_align to 1 and use cfb_* drawing functions
   if FBINFO_HWACCEL_DISABLED is set
Signed-off-by: Guido Guenter <agx@sigxcpu.org>
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>