powerpc/8xx: fix setting of pagetable for Abatron BDI debug tool.

[Michael Ellerman]

On Wed, 2019-01-09 at 20:30:07 UTC, Christophe Leroy wrote:
> Commit 8c8c10b90d88 ("powerpc/8xx: fix handling of early NULL pointer
> dereference") moved the loading of r6 earlier in the code. As some
> functions are called inbetween, r6 needs to be loaded again with the
> address of swapper_pg_dir in order to set PTE pointers for
> the Abatron BDI.
> 
> Fixes: 8c8c10b90d88 ("powerpc/8xx: fix handling of early NULL pointer dereference")
> Signed-off-by: Christophe Leroy <christophe.leroy at c-s.fr>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/fb0bdec51a4901b7dd088de0a1e365e1

cheers