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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2007-05-08 16:27:28 +1000
committerPaul Mackerras <paulus@samba.org>2007-05-09 16:35:00 +1000
commit16c2d476232523260c495eafbf9cdc1be984b7df (patch)
treefb6614b9752b51864e121317478088978823792c /arch/powerpc/Kconfig
parentd0f13e3c20b6fb73ccb467bdca97fa7cf5a574cd (diff)
[POWERPC] Add ability to 4K kernel to hash in 64K pages
This adds the ability for a kernel compiled with 4K page size to have special slices containing 64K pages and hash the right type of hash PTEs. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/Kconfig')
-rw-r--r--arch/powerpc/Kconfig6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 5226f701634..ecd459dd1ba 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -546,9 +546,15 @@ config NODES_SPAN_OTHER_NODES
def_bool y
depends on NEED_MULTIPLE_NODES
+config PPC_HAS_HASH_64K
+ bool
+ depends on PPC64
+ default n
+
config PPC_64K_PAGES
bool "64k page size"
depends on PPC64
+ select PPC_HAS_HASH_64K
help
This option changes the kernel logical page size to 64k. On machines
without processor support for 64k pages, the kernel will simulate