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Diffstat (limited to 'arch/x86/include/asm/pgtable.h')
-rw-r--r--arch/x86/include/asm/pgtable.h35
1 files changed, 28 insertions, 7 deletions
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 867da5bbb..6ec0c8b2e 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -19,6 +19,13 @@
#include <asm/x86_init.h>
void ptdump_walk_pgd_level(struct seq_file *m, pgd_t *pgd);
+void ptdump_walk_pgd_level_checkwx(void);
+
+#ifdef CONFIG_DEBUG_WX
+#define debug_checkwx() ptdump_walk_pgd_level_checkwx()
+#else
+#define debug_checkwx() do { } while (0)
+#endif
/*
* ZERO_PAGE is a global shared page that is always zero: used
@@ -142,12 +149,12 @@ static inline unsigned long pte_pfn(pte_t pte)
static inline unsigned long pmd_pfn(pmd_t pmd)
{
- return (pmd_val(pmd) & PTE_PFN_MASK) >> PAGE_SHIFT;
+ return (pmd_val(pmd) & pmd_pfn_mask(pmd)) >> PAGE_SHIFT;
}
static inline unsigned long pud_pfn(pud_t pud)
{
- return (pud_val(pud) & PTE_PFN_MASK) >> PAGE_SHIFT;
+ return (pud_val(pud) & pud_pfn_mask(pud)) >> PAGE_SHIFT;
}
#define pte_page(pte) pfn_to_page(pte_pfn(pte))
@@ -318,6 +325,16 @@ static inline pmd_t pmd_mksoft_dirty(pmd_t pmd)
return pmd_set_flags(pmd, _PAGE_SOFT_DIRTY);
}
+static inline pte_t pte_clear_soft_dirty(pte_t pte)
+{
+ return pte_clear_flags(pte, _PAGE_SOFT_DIRTY);
+}
+
+static inline pmd_t pmd_clear_soft_dirty(pmd_t pmd)
+{
+ return pmd_clear_flags(pmd, _PAGE_SOFT_DIRTY);
+}
+
#endif /* CONFIG_HAVE_ARCH_SOFT_DIRTY */
/*
@@ -379,7 +396,9 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
return __pgprot(preservebits | addbits);
}
-#define pte_pgprot(x) __pgprot(pte_flags(x) & PTE_FLAGS_MASK)
+#define pte_pgprot(x) __pgprot(pte_flags(x))
+#define pmd_pgprot(x) __pgprot(pmd_flags(x))
+#define pud_pgprot(x) __pgprot(pud_flags(x))
#define canon_pgprot(p) __pgprot(massage_pgprot(p))
@@ -502,14 +521,15 @@ static inline int pmd_none(pmd_t pmd)
static inline unsigned long pmd_page_vaddr(pmd_t pmd)
{
- return (unsigned long)__va(pmd_val(pmd) & PTE_PFN_MASK);
+ return (unsigned long)__va(pmd_val(pmd) & pmd_pfn_mask(pmd));
}
/*
* Currently stuck as a macro due to indirect forward reference to
* linux/mmzone.h's __section_mem_map_addr() definition:
*/
-#define pmd_page(pmd) pfn_to_page((pmd_val(pmd) & PTE_PFN_MASK) >> PAGE_SHIFT)
+#define pmd_page(pmd) \
+ pfn_to_page((pmd_val(pmd) & pmd_pfn_mask(pmd)) >> PAGE_SHIFT)
/*
* the pmd page can be thought of an array like this: pmd_t[PTRS_PER_PMD]
@@ -570,14 +590,15 @@ static inline int pud_present(pud_t pud)
static inline unsigned long pud_page_vaddr(pud_t pud)
{
- return (unsigned long)__va((unsigned long)pud_val(pud) & PTE_PFN_MASK);
+ return (unsigned long)__va(pud_val(pud) & pud_pfn_mask(pud));
}
/*
* Currently stuck as a macro due to indirect forward reference to
* linux/mmzone.h's __section_mem_map_addr() definition:
*/
-#define pud_page(pud) pfn_to_page(pud_val(pud) >> PAGE_SHIFT)
+#define pud_page(pud) \
+ pfn_to_page((pud_val(pud) & pud_pfn_mask(pud)) >> PAGE_SHIFT)
/* Find an entry in the second-level page table.. */
static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)