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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-06-11 15:37:10 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-06-30 22:30:53 +1000 |
| commit | 41743a4e34f0777f51c1cf0675b91508ba143050 (patch) | |
| tree | 9e63c8c8d70169e6c8be699167234db33b102a1f /include/asm-powerpc/pgtable-4k.h | |
| parent | ff1f4ee94c3c4480b9cee95da2d19668262636c6 (diff) | |
| download | linux-41743a4e34f0777f51c1cf0675b91508ba143050.tar.gz linux-41743a4e34f0777f51c1cf0675b91508ba143050.tar.bz2 linux-41743a4e34f0777f51c1cf0675b91508ba143050.zip | |
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>
Diffstat (limited to 'include/asm-powerpc/pgtable-4k.h')
| -rw-r--r-- | include/asm-powerpc/pgtable-4k.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-powerpc/pgtable-4k.h b/include/asm-powerpc/pgtable-4k.h index 818e2abc81e2..fd2090dc1dce 100644 --- a/include/asm-powerpc/pgtable-4k.h +++ b/include/asm-powerpc/pgtable-4k.h @@ -41,6 +41,7 @@ #define PGDIR_MASK (~(PGDIR_SIZE-1)) /* PTE bits */ +#define _PAGE_HASHPTE 0x0400 /* software: pte has an associated HPTE */ #define _PAGE_SECONDARY 0x8000 /* software: HPTE is in secondary group */ #define _PAGE_GROUP_IX 0x7000 /* software: HPTE index within group */ #define _PAGE_F_SECOND _PAGE_SECONDARY |