diff options
| author | Catalin Marinas <catalin.marinas@arm.com> | 2012-07-25 13:32:38 (GMT) |
|---|---|---|
| committer | Steve Capper <steve.capper@linaro.org> | 2013-06-04 15:52:37 (GMT) |
| commit | 1355e2a6eb88f04d76125c057dc5fca64d4b6a9e (patch) | |
| tree | af2c21aba209583f46e2424aec2e5d70b80c7965 /arch/arm/Kconfig | |
| parent | 0b19f93351dd68cb68a1a5b2d74e13d2ddfcfc64 (diff) | |
| download | linux-fsl-qoriq-1355e2a6eb88f04d76125c057dc5fca64d4b6a9e.tar.xz | |
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 49d993c..860f034 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 |