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-rw-r--r--arch/arm64/Kconfig1
-rw-r--r--arch/arm64/include/asm/pgtable.h8
2 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index b90f92f89d54..d2ca7b6c6f85 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -38,6 +38,7 @@ config ARM64
select ARCH_HAS_MEM_ENCRYPT
select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS
select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
+ select ARCH_HAS_NONLEAF_PMD_YOUNG if ARM64_HAFT
select ARCH_HAS_PTE_DEVMAP
select ARCH_HAS_PTE_SPECIAL
select ARCH_HAS_HW_PTE_YOUNG
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index c329ea061dc9..5182feabd943 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -1259,7 +1259,7 @@ static inline int __ptep_clear_flush_young(struct vm_area_struct *vma,
return young;
}
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG)
#define __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG
static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
unsigned long address,
@@ -1267,7 +1267,7 @@ static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
{
return __ptep_test_and_clear_young(vma, address, (pte_t *)pmdp);
}
-#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
+#endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG */
static inline pte_t __ptep_get_and_clear(struct mm_struct *mm,
unsigned long address, pte_t *ptep)
@@ -1502,6 +1502,10 @@ static inline void update_mmu_cache_range(struct vm_fault *vmf,
*/
#define arch_has_hw_pte_young cpu_has_hw_af
+#ifdef CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG
+#define arch_has_hw_nonleaf_pmd_young system_supports_haft
+#endif
+
/*
* Experimentally, it's cheap to set the access flag in hardware and we
* benefit from prefaulting mappings as 'old' to start with.