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authorJon Tollefson <kniht@linux.vnet.ibm.com>2008-01-04 09:59:50 +1100
committerPaul Mackerras <paulus@samba.org>2008-01-17 14:57:36 +1100
commit4ec161cf73bc0b4e5c36843638ef9171896fc0b9 (patch)
treefd8d5c652bbc54f54e0b880a7540ce387ee1f34d /include
parent5b14e5f9ddbb1bd32a876cac75f5f3ecfd353063 (diff)
[POWERPC] Add hugepagesz boot-time parameter
This adds the hugepagesz boot-time parameter for ppc64. It lets one pick the size for huge pages. The choices available are 64K and 16M when the base page size is 4k. It defaults to 16M (previously the only only choice) if nothing or an invalid choice is specified. Tested 64K huge pages successfully with the libhugetlbfs 1.2. Signed-off-by: Jon Tollefson <kniht@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-powerpc/mmu-hash64.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-powerpc/mmu-hash64.h b/include/asm-powerpc/mmu-hash64.h
index f2d7d5ded2e..2a1b4040e20 100644
--- a/include/asm-powerpc/mmu-hash64.h
+++ b/include/asm-powerpc/mmu-hash64.h
@@ -278,6 +278,7 @@ extern int hash_huge_page(struct mm_struct *mm, unsigned long access,
extern int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
unsigned long pstart, unsigned long mode,
int psize, int ssize);
+extern void set_huge_psize(int psize);
extern void htab_initialize(void);
extern void htab_initialize_secondary(void);