m68k: mark PMD folded and 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. Core mm expects __PAGETABLE_{PUD,PMD}_FOLDED to be defined if these page table levels folded. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> 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>
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@ -67,6 +67,10 @@ config HZ
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default 1000 if CLEOPATRA
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default 100
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config PGTABLE_LEVELS
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default 2 if SUN3 || COLDFIRE
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default 3
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source "init/Kconfig"
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source "kernel/Kconfig.freezer"
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