On Tue, 8 Apr 2003, Ralf Baechle wrote:
> > Is the aliasing between R4KBUG & GLOBAL intentional? This is the only
> > CONFIG case where it
> > is done. Superficially, I can't see R4KBUG used anywhere, so maybe it
> > doesn't matter. But
> > if R4KBUG truly isn't used, why not consider removing it entirely from all
> > PTE layouts?
>
> It's there for a R4000 bug workaround waiting to be finally written by
> somebody ...
Possibly doing that in the toolchain may be a reasonable alternative.
Actually wasting say 4 last words for nops on every page unconditionally
when building for the affected processors may be a good approximation of a
workaround for a start.
--
+ Maciej W. Rozycki, Technical University of Gdansk, Poland +
+--------------------------------------------------------------+
+ e-mail: macro@ds2.pg.gda.pl, PGP key available +
|