1 files changed, 95 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/pgtable-types.h b/arch/arm64/include/asm/pgtable-types.h
new file mode 100644
index 000000000000..ca9df80af896
--- /dev/null
+++ b/arch/arm64/include/asm/pgtable-types.h
@@ -0,0 +1,95 @@
+/*
+ * Page table types definitions.
+ *
+ * Copyright (C) 2014 ARM Ltd.
+ * Author: Catalin Marinas <catalin.marinas@arm.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __ASM_PGTABLE_TYPES_H
+#define __ASM_PGTABLE_TYPES_H
+
+#include <asm/types.h>
+
+typedef u64 pteval_t;
+typedef u64 pmdval_t;
+typedef u64 pudval_t;
+typedef u64 pgdval_t;
+
+#undef STRICT_MM_TYPECHECKS
+
+#ifdef STRICT_MM_TYPECHECKS
+
+/*
+ * These are used to make use of C type-checking..
+ */
+typedef struct { pteval_t pte; } pte_t;
+#define pte_val(x)	((x).pte)
+#define __pte(x)	((pte_t) { (x) } )
+
+#if CONFIG_ARM64_PGTABLE_LEVELS > 2
+typedef struct { pmdval_t pmd; } pmd_t;
+#define pmd_val(x)	((x).pmd)
+#define __pmd(x)	((pmd_t) { (x) } )
+#endif
+
+#if CONFIG_ARM64_PGTABLE_LEVELS > 3
+typedef struct { pudval_t pud; } pud_t;
+#define pud_val(x)	((x).pud)
+#define __pud(x)	((pud_t) { (x) } )
+#endif
+
+typedef struct { pgdval_t pgd; } pgd_t;
+#define pgd_val(x)	((x).pgd)
+#define __pgd(x)	((pgd_t) { (x) } )
+
+typedef struct { pteval_t pgprot; } pgprot_t;
+#define pgprot_val(x)	((x).pgprot)
+#define __pgprot(x)	((pgprot_t) { (x) } )
+
+#else	/* !STRICT_MM_TYPECHECKS */
+
+typedef pteval_t pte_t;
+#define pte_val(x)	(x)
+#define __pte(x)	(x)
+
+#if CONFIG_ARM64_PGTABLE_LEVELS > 2
+typedef pmdval_t pmd_t;
+#define pmd_val(x)	(x)
+#define __pmd(x)	(x)
+#endif
+
+#if CONFIG_ARM64_PGTABLE_LEVELS > 3
+typedef pudval_t pud_t;
+#define pud_val(x)	(x)
+#define __pud(x)	(x)
+#endif
+
+typedef pgdval_t pgd_t;
+#define pgd_val(x)	(x)
+#define __pgd(x)	(x)
+
+typedef pteval_t pgprot_t;
+#define pgprot_val(x)	(x)
+#define __pgprot(x)	(x)
+
+#endif /* STRICT_MM_TYPECHECKS */
+
+#if CONFIG_ARM64_PGTABLE_LEVELS == 2
+#include <asm-generic/pgtable-nopmd.h>
+#elif CONFIG_ARM64_PGTABLE_LEVELS == 3
+#include <asm-generic/pgtable-nopud.h>
+#endif
+
+#endif	/* __ASM_PGTABLE_TYPES_H */