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| author | Steve Capper | 2013-04-19 17:23:57 +0200 |
|---|---|---|
| committer | Steve Capper | 2013-06-14 10:52:41 +0200 |
| commit | af07484863e0c20796081e57093886c22dc16705 (patch) | |
| tree | c9891c1048f860413c7cfd79e2b7a686c8be0263 /arch/arm64/Kconfig | |
| parent | ARM64: mm: Raise MAX_ORDER for 64KB pages and THP. (diff) | |
| download | kernel-qcow2-linux-af07484863e0c20796081e57093886c22dc16705.tar.gz kernel-qcow2-linux-af07484863e0c20796081e57093886c22dc16705.tar.xz kernel-qcow2-linux-af07484863e0c20796081e57093886c22dc16705.zip | |
ARM64: mm: THP support.
Bring Transparent HugePage support to ARM. The size of a
transparent huge page depends on the normal page size. A
transparent huge page is always represented as a pmd.
If PAGE_SIZE is 4KB, THPs are 2MB.
If PAGE_SIZE is 64KB, THPs are 512MB.
Signed-off-by: Steve Capper <steve.capper@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 10607d63b945..308a55636f76 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -189,6 +189,9 @@ config ARCH_WANT_GENERAL_HUGETLB config ARCH_WANT_HUGE_PMD_SHARE def_bool y if !ARM64_64K_PAGES +config HAVE_ARCH_TRANSPARENT_HUGEPAGE + def_bool y + source "mm/Kconfig" config FORCE_MAX_ZONEORDER |