diff options
| author | Suzuki K Poulose <suzuki.poulose@arm.com> | 2016-03-15 11:46:34 +0100 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2016-04-21 14:56:52 +0200 |
| commit | 0dbd3b18c63c81dec1a8c47667d89c54ade9b52a (patch) | |
| tree | 26c3cf4e55512867c09efbd16efdc59bc9ad329d /arch/arm64 | |
| parent | kvm arm: Move fake PGD handling to arch specific files (diff) | |
| download | linux-0dbd3b18c63c81dec1a8c47667d89c54ade9b52a.tar.xz linux-0dbd3b18c63c81dec1a8c47667d89c54ade9b52a.zip | |
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>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/pgtable.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 989fef16d461..dda4aa9ba3f8 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)) |