diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2015-04-15 00:46:05 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-15 01:49:02 +0200 |
| commit | 81a2936c1a98dd007c510dc523c5bbdce263878b (patch) | |
| tree | bdd67e6fa9f5a79687ae853c94cbc78eb8558e18 /arch/sparc | |
| parent | sh: expose number of page table levels (diff) | |
| download | linux-81a2936c1a98dd007c510dc523c5bbdce263878b.tar.xz linux-81a2936c1a98dd007c510dc523c5bbdce263878b.zip | |
sparc: expose number of page table levels
We would want to use number of page table level to define mm_struct.
Let's expose it as CONFIG_PGTABLE_LEVELS.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index efb00ec75805..e49502acbab4 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -146,6 +146,10 @@ config GENERIC_ISA_DMA config ARCH_SUPPORTS_DEBUG_PAGEALLOC def_bool y if SPARC64 +config PGTABLE_LEVELS + default 4 if 64BIT + default 3 + source "init/Kconfig" source "kernel/Kconfig.freezer" |