Messages in this thread Patch in this message | | | From | Jeremy Linton <> | Subject | [PATCH 4/7] arm64: Macros to check/set/unset the contiguous bit | Date | Wed, 16 Sep 2015 14:03:03 -0500 |
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Add the supporting macros to check if the contiguous bit is set, set the bit, or clear it in a PTE entry.
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com> --- arch/arm64/include/asm/pgtable.h | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 6900b2d9..d43e1d1 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -144,6 +144,7 @@ extern struct page *empty_zero_page; #define pte_special(pte) (!!(pte_val(pte) & PTE_SPECIAL)) #define pte_write(pte) (!!(pte_val(pte) & PTE_WRITE)) #define pte_exec(pte) (!(pte_val(pte) & PTE_UXN)) +#define pte_cont(pte) (!!(pte_val(pte) & PTE_CONT)) #ifdef CONFIG_ARM64_HW_AFDBM #define pte_hw_dirty(pte) (!(pte_val(pte) & PTE_RDONLY)) @@ -206,6 +207,16 @@ static inline pte_t pte_mkspecial(pte_t pte) return set_pte_bit(pte, __pgprot(PTE_SPECIAL)); } +static inline pte_t pte_mkcont(pte_t pte) +{ + return set_pte_bit(pte, __pgprot(PTE_CONT)); +} + +static inline pte_t pte_mknoncont(pte_t pte) +{ + return clear_pte_bit(pte, __pgprot(PTE_CONT)); +} + static inline void set_pte(pte_t *ptep, pte_t pte) { *ptep = pte; -- 2.4.3
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