diff options
| author |   Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2015-04-14 15:45:39 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-14 16:49:01 -0700 |
| commit | 9f25e6ad58e1fb3b4d441e4c55635c4598a6fa94 (patch) | |
| tree | 166d29ab4fe109797e6f9613f6894e321176830b /arch/arm64/Kconfig | |
| parent | alpha: expose number of page table levels on Kconfig level (diff) | |
| download | linux-dev-9f25e6ad58e1fb3b4d441e4c55635c4598a6fa94.tar.xz linux-dev-9f25e6ad58e1fb3b4d441e4c55635c4598a6fa94.zip | |
arm64: expose number of page table levels on Kconfig level
We would want to use number of page table level to define mm_struct.
Let's expose it as CONFIG_PGTABLE_LEVELS.
ARM64_PGTABLE_LEVELS is renamed to PGTABLE_LEVELS and defined before
sourcing init/Kconfig: arch/Kconfig will define default value and it's
sourced from init/Kconfig.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
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/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1b8e97331ffb..3f2fba996bc2 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -143,6 +143,13 @@ config KERNEL_MODE_NEON config FIX_EARLYCON_MEM def_bool y +config PGTABLE_LEVELS + int + default 2 if ARM64_64K_PAGES && ARM64_VA_BITS_42 + default 3 if ARM64_64K_PAGES && ARM64_VA_BITS_48 + default 3 if ARM64_4K_PAGES && ARM64_VA_BITS_39 + default 4 if ARM64_4K_PAGES && ARM64_VA_BITS_48 + source "init/Kconfig" source "kernel/Kconfig.freezer" @@ -413,13 +420,6 @@ config ARM64_VA_BITS default 42 if ARM64_VA_BITS_42 default 48 if ARM64_VA_BITS_48 -config ARM64_PGTABLE_LEVELS - int - default 2 if ARM64_64K_PAGES && ARM64_VA_BITS_42 - default 3 if ARM64_64K_PAGES && ARM64_VA_BITS_48 - default 3 if ARM64_4K_PAGES && ARM64_VA_BITS_39 - default 4 if ARM64_4K_PAGES && ARM64_VA_BITS_48 - config CPU_BIG_ENDIAN bool "Build big-endian kernel" help |