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| author | Steve Capper <steve.capper@linaro.org> | 2013-04-10 13:48:00 +0100 |
|---|---|---|
| committer | Steve Capper <steve.capper@linaro.org> | 2013-06-14 09:52:40 +0100 |
| commit | 084bd29810a5689e423d2f085255a3200a03a06e (patch) | |
| tree | 2c26ab58c8b95fb5c6f925044c3873979217da4a /arch/arm64/Kconfig | |
| parent | 59911ca4325dc7bd95e05c988fef3593b694e62c (diff) | |
| download | linux-084bd29810a5689e423d2f085255a3200a03a06e.tar.gz | |
ARM64: mm: HugeTLB support.
Add huge page support to ARM64, different huge page sizes are
supported depending on the size of normal pages:
PAGE_SIZE is 4KB:
2MB - (pmds) these can be allocated at any time.
1024MB - (puds) usually allocated on bootup with the command line
with something like: hugepagesz=1G hugepages=6
PAGE_SIZE is 64KB:
512MB - (pmds) usually allocated on bootup via command line.
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 | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 56b3f6d447ae..cd6eca84a21c 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -180,6 +180,15 @@ config HW_PERF_EVENTS Enable hardware performance counter support for perf events. If disabled, perf events will use software events only. +config SYS_SUPPORTS_HUGETLBFS + def_bool y + +config ARCH_WANT_GENERAL_HUGETLB + def_bool y + +config ARCH_WANT_HUGE_PMD_SHARE + def_bool y if !ARM64_64K_PAGES + source "mm/Kconfig" endmenu |