[PATCH 4/8] 8xx: Fixup DAR from buggy dcbX instructions.

[Benjamin Herrenschmidt]

On Wed, 2009-10-14 at 23:41 +0200, Joakim Tjernlund wrote:
> Benjamin Herrenschmidt <benh at kernel.crashing.org> wrote on 14/10/2009 23:17:09:
> >
> > On Wed, 2009-10-14 at 16:14 -0500, Scott Wood wrote:
> > >
> > > I think the last working version was a little older than that -- and it's quite
> > > possible that there was underlying badness even earlier that just recently got
> > > exposed.  I think I want to just debug it and find out what's really going on.
> >
> > That would be good :-)
> >
> > I've been itching to do that but without HW it's not trivial :-)
> 
> Meanwhile, how about the tlb asm you promised me? :)
> It will be a challenge I think since you only have 2 GPRs
> I guess it would be possible to stash yet another reg since it
> will fit in the cache line already used by the TLB handlers.

Let's just get it working first :-)

Ben.