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Diffstat (limited to 'arch/arm64/include/asm/pgtable.h')
-rw-r--r--arch/arm64/include/asm/pgtable.h20
1 files changed, 15 insertions, 5 deletions
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index e20bd431184a..ffbb9a520563 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -73,7 +73,7 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
#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))
-#define pte_user(pte) (!!(pte_val(pte) & PTE_USER))
+#define pte_ng(pte) (!!(pte_val(pte) & PTE_NG))
#ifdef CONFIG_ARM64_HW_AFDBM
#define pte_hw_dirty(pte) (pte_write(pte) && !(pte_val(pte) & PTE_RDONLY))
@@ -84,8 +84,8 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
#define pte_dirty(pte) (pte_sw_dirty(pte) || pte_hw_dirty(pte))
#define pte_valid(pte) (!!(pte_val(pte) & PTE_VALID))
-#define pte_valid_not_user(pte) \
- ((pte_val(pte) & (PTE_VALID | PTE_USER)) == PTE_VALID)
+#define pte_valid_global(pte) \
+ ((pte_val(pte) & (PTE_VALID | PTE_NG)) == PTE_VALID)
#define pte_valid_young(pte) \
((pte_val(pte) & (PTE_VALID | PTE_AF)) == (PTE_VALID | PTE_AF))
@@ -155,6 +155,16 @@ static inline pte_t pte_mknoncont(pte_t pte)
return clear_pte_bit(pte, __pgprot(PTE_CONT));
}
+static inline pte_t pte_clear_rdonly(pte_t pte)
+{
+ return clear_pte_bit(pte, __pgprot(PTE_RDONLY));
+}
+
+static inline pte_t pte_mkpresent(pte_t pte)
+{
+ return set_pte_bit(pte, __pgprot(PTE_VALID));
+}
+
static inline pmd_t pmd_mkcont(pmd_t pmd)
{
return __pmd(pmd_val(pmd) | PMD_SECT_CONT);
@@ -168,7 +178,7 @@ static inline void set_pte(pte_t *ptep, pte_t pte)
* Only if the new pte is valid and kernel, otherwise TLB maintenance
* or update_mmu_cache() have the necessary barriers.
*/
- if (pte_valid_not_user(pte)) {
+ if (pte_valid_global(pte)) {
dsb(ishst);
isb();
}
@@ -202,7 +212,7 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
pte_val(pte) &= ~PTE_RDONLY;
else
pte_val(pte) |= PTE_RDONLY;
- if (pte_user(pte) && pte_exec(pte) && !pte_special(pte))
+ if (pte_ng(pte) && pte_exec(pte) && !pte_special(pte))
__sync_icache_dcache(pte, addr);
}