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| author | Catalin Marinas | 2012-07-25 15:32:38 +0200 |
|---|---|---|
| committer | Steve Capper | 2013-06-04 17:52:37 +0200 |
| commit | 1355e2a6eb88f04d76125c057dc5fca64d4b6a9e (patch) | |
| tree | af2c21aba209583f46e2424aec2e5d70b80c7965 /arch/arm/Kconfig | |
| parent | ARM: mm: Add support for flushing HugeTLB pages. (diff) | |
| download | kernel-qcow2-linux-1355e2a6eb88f04d76125c057dc5fca64d4b6a9e.tar.gz kernel-qcow2-linux-1355e2a6eb88f04d76125c057dc5fca64d4b6a9e.tar.xz kernel-qcow2-linux-1355e2a6eb88f04d76125c057dc5fca64d4b6a9e.zip | |
ARM: mm: HugeTLB support for LPAE systems.
This patch adds support for hugetlbfs based on the x86 implementation.
It allows mapping of 2MB sections (see Documentation/vm/hugetlbpage.txt
for usage). The 64K pages configuration is not supported (section size
is 512MB in this case).
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
[steve.capper@linaro.org: symbolic constants replace numbers in places.
Split up into multiple files, to simplify future non-LPAE support,
removed huge_pmd_share code, as this is very rarely executed,
Added PROT_NONE support].
Signed-off-by: Steve Capper <steve.capper@linaro.org>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 49d993cee512..860f034653a8 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1707,6 +1707,10 @@ 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 + depends on ARM_LPAE + source "mm/Kconfig" config FORCE_MAX_ZONEORDER |