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authorSteve Capper <steve.capper@linaro.org>2013-04-10 13:48:00 +0100
committerSteve Capper <steve.capper@linaro.org>2013-06-14 09:52:40 +0100
commit084bd29810a5689e423d2f085255a3200a03a06e (patch)
tree2c26ab58c8b95fb5c6f925044c3873979217da4a /arch/arm64/Kconfig
parent59911ca4325dc7bd95e05c988fef3593b694e62c (diff)
downloadlinux-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/Kconfig9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 56b3f6d447a..cd6eca84a21 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"
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