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+/*
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+ * Copyright (C) 2012 ARM Ltd.
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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+ * published by the Free Software Foundation.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
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+ */
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+#ifndef __ASM_PGTABLE_H
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+#define __ASM_PGTABLE_H
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+
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+#include <asm/proc-fns.h>
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+
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+#include <asm/memory.h>
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+#include <asm/pgtable-hwdef.h>
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+
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+/*
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+ * Software defined PTE bits definition.
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+ */
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+#define PTE_VALID (_AT(pteval_t, 1) << 0)
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+#define PTE_PROT_NONE (_AT(pteval_t, 1) << 1) /* only when !PTE_VALID */
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+#define PTE_FILE (_AT(pteval_t, 1) << 2) /* only when !pte_present() */
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+#define PTE_DIRTY (_AT(pteval_t, 1) << 55)
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+#define PTE_SPECIAL (_AT(pteval_t, 1) << 56)
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+
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+/*
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+ * VMALLOC and SPARSEMEM_VMEMMAP ranges.
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+ */
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+#define VMALLOC_START UL(0xffffff8000000000)
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+#define VMALLOC_END (PAGE_OFFSET - UL(0x400000000) - SZ_64K)
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+
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+#define vmemmap ((struct page *)(VMALLOC_END + SZ_64K))
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+
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+#define FIRST_USER_ADDRESS 0
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+
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+#ifndef __ASSEMBLY__
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+extern void __pte_error(const char *file, int line, unsigned long val);
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+extern void __pmd_error(const char *file, int line, unsigned long val);
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+extern void __pgd_error(const char *file, int line, unsigned long val);
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+
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+#define pte_ERROR(pte) __pte_error(__FILE__, __LINE__, pte_val(pte))
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+#ifndef CONFIG_ARM64_64K_PAGES
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+#define pmd_ERROR(pmd) __pmd_error(__FILE__, __LINE__, pmd_val(pmd))
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+#endif
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+#define pgd_ERROR(pgd) __pgd_error(__FILE__, __LINE__, pgd_val(pgd))
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+
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+/*
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+ * The pgprot_* and protection_map entries will be fixed up at runtime to
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+ * include the cachable and bufferable bits based on memory policy, as well as
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+ * any architecture dependent bits like global/ASID and SMP shared mapping
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