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authorCatalin Marinas <catalin.marinas@arm.com>2012-07-25 14:39:26 +0100
committerSteve Capper <steve.capper@linaro.org>2013-06-04 16:52:38 +0100
commit8d962507007357d6fbbcbdd1647faa389a9aed6d (patch)
tree019135b49067394cfd3c002d4900aba91089f66f /arch/arm/include/asm/tlbflush.h
parent1355e2a6eb88f04d76125c057dc5fca64d4b6a9e (diff)
downloadlinux-linaro-stable-8d962507007357d6fbbcbdd1647faa389a9aed6d.tar.gz
ARM: mm: Transparent huge page support for LPAE systems.
The patch adds support for THP (transparent huge pages) to LPAE systems. When this feature is enabled, the kernel tries to map anonymous pages as 2MB sections where possible. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> [steve.capper@linaro.org: symbolic constants used, value of PMD_SECT_SPLITTING adjusted, tlbflush.h included in pgtable.h, 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/include/asm/tlbflush.h')
-rw-r--r--arch/arm/include/asm/tlbflush.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h
index a3625d141c1d..c37459299fc9 100644
--- a/arch/arm/include/asm/tlbflush.h
+++ b/arch/arm/include/asm/tlbflush.h
@@ -535,6 +535,8 @@ static inline void update_mmu_cache(struct vm_area_struct *vma,
}
#endif
+#define update_mmu_cache_pmd(vma, address, pmd) do { } while (0)
+
#endif
#endif /* CONFIG_MMU */