diff options
| author | Michael Ellerman <michael@ellerman.id.au> | 2012-09-20 18:08:28 -0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-09-26 22:51:06 -0400 |
| commit | 8e166991c0c3631b8af5a26990df77fa2a1d09e6 (patch) | |
| tree | e630b3c73da4d29eecea8f46fc62a1f306c1cbd8 /arch/powerpc/mm/hash_low_64.S | |
| parent | 466921c5a4669f4315528a25f9afd66601ce2c04 (diff) | |
powerpc: Remove tlb batching hack for nighthawk
In hpte_init_native() we call tlb_batching_enabled() to decide if we
should setup ppc_md.flush_hash_range.
tlb_batching_enabled() checks the _unflattened_ device tree, to see
if we are running on a nighthawk.
Since commit a223535 ("dont allow pSeries_probe to succeed without
initialising MMU", Dec 2006), hpte_init_native() has been called from
pSeries_probe() - at which point we have not yet unflattened the
device tree.
This means tlb_batching_enabled() will always return true, so the hack
has effectively been disabled since Dec 2006. Ergo, I think we can
drop it.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/mm/hash_low_64.S')
0 files changed, 0 insertions, 0 deletions