diff options
| author | Ilya Yanok <yanok@emcraft.com> | 2008-12-11 04:55:41 +0300 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-12-29 09:53:25 +1100 |
| commit | ca9153a3a2a7556d091dfe080e42b0e67881fff6 (patch) | |
| tree | 35b5ce24f190690cf7a726cbb97980da51704855 /arch/powerpc/platforms | |
| parent | 6ca4f7494bde078b2b730e28e4ea1dc36a772f70 (diff) | |
powerpc/44x: Support 16K/64K base page sizes on 44x
This adds support for 16k and 64k page sizes on PowerPC 44x processors.
The PGDIR table is much smaller than a page when using 16k or 64k
pages (512 and 32 bytes respectively) so we allocate the PGDIR with
kzalloc() instead of __get_free_pages().
One PTE table covers rather a large memory area when using 16k or 64k
pages (32MB or 512MB respectively), so we can easily put FIXMAP and
PKMAP in the area covered by one PTE table.
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
Signed-off-by: Vladimir Panfilov <pvr@emcraft.com>
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/Kconfig.cputype | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index db61dafb924..3d0c776f888 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -212,7 +212,7 @@ config PPC_MMU_NOHASH config PPC_MM_SLICES bool - default y if HUGETLB_PAGE || PPC_64K_PAGES + default y if HUGETLB_PAGE || (PPC_STD_MMU_64 && PPC_64K_PAGES) default n config VIRT_CPU_ACCOUNTING |