tree 9e63c8c8d70169e6c8be699167234db33b102a1f
parent ff1f4ee94c3c4480b9cee95da2d19668262636c6
author Benjamin Herrenschmidt <benh@kernel.crashing.org> 1213162630 +1000
committer Paul Mackerras <paulus@samba.org> 1214829053 +1000

powerpc: Free a PTE bit on ppc64 with 64K pages

This frees a PTE bit when using 64K pages on ppc64.  This is done
by getting rid of the separate _PAGE_HASHPTE bit.  Instead, we just test
if any of the 16 sub-page bits is set.  For non-combo pages (ie. real
64K pages), we set SUB0 and the location encoding in that field.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>