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.rutl...@arm.com> Cc: Catalin Marinas <catalin.mari...@arm.com> Cc: Steve Capper <steve.cap...@linaro.org> Cc: Will Deacon <will.dea...@arm.com> Acked-by: Christoffer Dall <christoffer.d...@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poul...@arm.com> --- arch/arm64/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 989fef1..dda4aa9 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -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)) -- 1.7.9.5
