Commit 0dbd3b18 authored Mar 15, 2016 by Suzuki K Poulose Committed by Christoffer Dall Apr 21, 2016

arm64: Introduce pmd_thp_or_huge



Add a helper to determine if a given pmd represents a huge page
either by hugetlb or thp, as we have for arm. This will be used
by KVM MMU code.

Suggested-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Steve Capper <steve.capper@linaro.org>
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>

parent 120f0779

arch/arm64/include/asm/pgtable.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -290,6 +290,8 @@ static inline pgprot_t mk_sect_prot(pgprot_t prot)
		#define pmd_mkyoung(pmd) pte_pmd(pte_mkyoung(pmd_pte(pmd)))
		#define pmd_mknotpresent(pmd) (__pmd(pmd_val(pmd) & ~PMD_TYPE_MASK))

		#define pmd_thp_or_huge(pmd) (pmd_huge(pmd) \|\| pmd_trans_huge(pmd))

		#define __HAVE_ARCH_PMD_WRITE
		#define pmd_write(pmd) pte_write(pmd_pte(pmd))

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