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| author |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2007-05-08 16:27:28 +1000 |
|---|---|---|
| committer |   Paul Mackerras <paulus@samba.org> | 2007-05-09 16:35:00 +1000 |
| commit | 16c2d476232523260c495eafbf9cdc1be984b7df (patch) | |
| tree | fb6614b9752b51864e121317478088978823792c /arch/powerpc/Kconfig | |
| parent | [POWERPC] Introduce address space "slices" (diff) | |
| download | linux-dev-16c2d476232523260c495eafbf9cdc1be984b7df.tar.xz linux-dev-16c2d476232523260c495eafbf9cdc1be984b7df.zip | |
[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/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 5226f701634e..ecd459dd1baf 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 |