x86: move pte types into pgtable*.h

pgtable*.h is intended for definitions relating to actual pagetables
and their entries, so move all the definitions for
(pte|pmd|pud|pgd)(val)?_t to the appropriate pgtable*.h headers.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

1 files changed, 101 insertions, 6 deletions

diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index e5d5a8d3577c..a7452f10930e 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -162,9 +162,110 @@
 #define PGD_IDENT_ATTR	 0x001		/* PRESENT (no other attributes) */
 #endif
 
+#ifdef CONFIG_X86_32
+# include "pgtable_32_types.h"
+#else
+# include "pgtable_64_types.h"
+#endif
+
 #ifndef __ASSEMBLY__
 
+#include <linux/types.h>
+
+typedef struct pgprot { pgprotval_t pgprot; } pgprot_t;
+
+typedef struct { pgdval_t pgd; } pgd_t;
+
+static inline pgd_t native_make_pgd(pgdval_t val)
+{
+	return (pgd_t) { val };
+}
+
+static inline pgdval_t native_pgd_val(pgd_t pgd)
+{
+	return pgd.pgd;
+}
+
+static inline pgdval_t pgd_flags(pgd_t pgd)
+{
+	return native_pgd_val(pgd) & PTE_FLAGS_MASK;
+}
+
+#if PAGETABLE_LEVELS > 3
+typedef struct { pudval_t pud; } pud_t;
+
+static inline pud_t native_make_pud(pmdval_t val)
+{
+	return (pud_t) { val };
+}
+
+static inline pudval_t native_pud_val(pud_t pud)
+{
+	return pud.pud;
+}
+#else
+#include <asm-generic/pgtable-nopud.h>
+
+static inline pudval_t native_pud_val(pud_t pud)
+{
+	return native_pgd_val(pud.pgd);
+}
+#endif
+
+#if PAGETABLE_LEVELS > 2
+typedef struct { pmdval_t pmd; } pmd_t;
+
+static inline pmd_t native_make_pmd(pmdval_t val)
+{
+	return (pmd_t) { val };
+}
+
+static inline pmdval_t native_pmd_val(pmd_t pmd)
+{
+	return pmd.pmd;
+}
+#else
+#include <asm-generic/pgtable-nopmd.h>
+
+static inline pmdval_t native_pmd_val(pmd_t pmd)
+{
+	return native_pgd_val(pmd.pud.pgd);
+}
+#endif
+
+static inline pudval_t pud_flags(pud_t pud)
+{
+	return native_pud_val(pud) & PTE_FLAGS_MASK;
+}
+
+static inline pmdval_t pmd_flags(pmd_t pmd)
+{
+	return native_pmd_val(pmd) & PTE_FLAGS_MASK;
+}
+
+static inline pte_t native_make_pte(pteval_t val)
+{
+	return (pte_t) { .pte = val };
+}
+
+static inline pteval_t native_pte_val(pte_t pte)
+{
+	return pte.pte;
+}
+
+static inline pteval_t pte_flags(pte_t pte)
+{
+	return native_pte_val(pte) & PTE_FLAGS_MASK;
+}
+
+#define pgprot_val(x)	((x).pgprot)
+#define __pgprot(x)	((pgprot_t) { (x) } )
+
+
+typedef struct page *pgtable_t;
+
 extern pteval_t __supported_pte_mask;
+extern int nx_enabled;
 
 #define pgprot_writecombine	pgprot_writecombine
 extern pgprot_t pgprot_writecombine(pgprot_t prot);
@@ -217,10 +318,4 @@ extern pte_t *lookup_address(unsigned long address, unsigned int *level);
 
 #endif	/* !__ASSEMBLY__ */
 
-#ifdef CONFIG_X86_32
-# include "pgtable_32_types.h"
-#else
-# include "pgtable_64_types.h"
-#endif
-
 #endif /* _ASM_X86_PGTABLE_DEFS_H */