return !(pte_val(pte) & _PAGE_NX);
}
+static inline int pte_special(pte_t pte)
+{
+ return 0;
+}
+
static inline int pmd_large(pmd_t pte)
{
return (pmd_val(pte) & (_PAGE_PSE | _PAGE_PRESENT)) ==
return __pte(pte_val(pte) & ~(pteval_t)_PAGE_GLOBAL);
}
+static inline pte_t pte_mkspecial(pte_t pte)
+{
+ return pte;
+}
+
extern pteval_t __supported_pte_mask;
static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot)
#define canon_pgprot(p) __pgprot(pgprot_val(p) & __supported_pte_mask)
+#ifndef __ASSEMBLY__
+#define __HAVE_PHYS_MEM_ACCESS_PROT
+struct file;
+pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
+ unsigned long size, pgprot_t vma_prot);
+int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
+ unsigned long size, pgprot_t *vma_prot);
+#endif
+
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#else /* !CONFIG_PARAVIRT */
pte_update(mm, addr, ptep);
}
+/*
+ * clone_pgd_range(pgd_t *dst, pgd_t *src, int count);
+ *
+ * dst - pointer to pgd range anwhere on a pgd page
+ * src - ""
+ * count - the number of pgds to copy.
+ *
+ * dst and src can be on the same page, but the range must not overlap,
+ * and must not cross a page boundary.
+ */
+static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
+{
+ memcpy(dst, src, count * sizeof(pgd_t));
+}
+
+
#include <asm-generic/pgtable.h>
#endif /* __ASSEMBLY__ */