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.lin...@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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