1 files changed, 63 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h
new file mode 100644
index 000000000000..fbf42b8e0383
--- /dev/null
+++ b/arch/x86/include/asm/pgtable_64_types.h
@@ -0,0 +1,63 @@
+#ifndef _ASM_X86_PGTABLE_64_DEFS_H
+#define _ASM_X86_PGTABLE_64_DEFS_H
+
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+
+/*
+ * These are used to make use of C type-checking..
+ */
+typedef unsigned long	pteval_t;
+typedef unsigned long	pmdval_t;
+typedef unsigned long	pudval_t;
+typedef unsigned long	pgdval_t;
+typedef unsigned long	pgprotval_t;
+
+typedef struct { pteval_t pte; } pte_t;
+
+#endif	/* !__ASSEMBLY__ */
+
+#define SHARED_KERNEL_PMD	0
+#define PAGETABLE_LEVELS	4
+
+/*
+ * PGDIR_SHIFT determines what a top-level page table entry can map
+ */
+#define PGDIR_SHIFT	39
+#define PTRS_PER_PGD	512
+
+/*
+ * 3rd level page
+ */
+#define PUD_SHIFT	30
+#define PTRS_PER_PUD	512
+
+/*
+ * PMD_SHIFT determines the size of the area a middle-level
+ * page table can map
+ */
+#define PMD_SHIFT	21
+#define PTRS_PER_PMD	512
+
+/*
+ * entries per page directory level
+ */
+#define PTRS_PER_PTE	512
+
+#define PMD_SIZE	(_AC(1, UL) << PMD_SHIFT)
+#define PMD_MASK	(~(PMD_SIZE - 1))
+#define PUD_SIZE	(_AC(1, UL) << PUD_SHIFT)
+#define PUD_MASK	(~(PUD_SIZE - 1))
+#define PGDIR_SIZE	(_AC(1, UL) << PGDIR_SHIFT)
+#define PGDIR_MASK	(~(PGDIR_SIZE - 1))
+
+
+#define MAXMEM		 _AC(__AC(1, UL) << MAX_PHYSMEM_BITS, UL)
+#define VMALLOC_START    _AC(0xffffc20000000000, UL)
+#define VMALLOC_END      _AC(0xffffe1ffffffffff, UL)
+#define VMEMMAP_START	 _AC(0xffffe20000000000, UL)
+#define MODULES_VADDR    _AC(0xffffffffa0000000, UL)
+#define MODULES_END      _AC(0xffffffffff000000, UL)
+#define MODULES_LEN   (MODULES_END - MODULES_VADDR)
+
+#endif /* _ASM_X86_PGTABLE_64_DEFS_H */