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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>
hifive-unleashed-5.1
Kirill A. Shutemov 2015-04-14 15:46:05 -07:00 committed by Linus Torvalds
parent 69543d6399
commit 81a2936c1a
1 changed files with 4 additions and 0 deletions
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arch/sparc/Kconfig
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@ -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"