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@@ -1,5 +1,10 @@
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/*
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- * This program is free software; you can redistribute it and/or modify
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+ * Page table types definitions.
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+ *
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+ * Copyright (C) 2014 ARM Ltd.
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+ * Author: Catalin Marinas <catalin.marinas@arm.com>
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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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@@ -11,8 +16,9 @@
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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_4LEVEL_TYPES_H
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-#define __ASM_PGTABLE_4LEVEL_TYPES_H
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+
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+#ifndef __ASM_PGTABLE_TYPES_H
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+#define __ASM_PGTABLE_TYPES_H
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#include <asm/types.h>
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@@ -29,43 +35,61 @@ typedef u64 pgdval_t;
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* These are used to make use of C type-checking..
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*/
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typedef struct { pteval_t pte; } pte_t;
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-typedef struct { pmdval_t pmd; } pmd_t;
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-typedef struct { pudval_t pud; } pud_t;
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-typedef struct { pgdval_t pgd; } pgd_t;
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-typedef struct { pteval_t pgprot; } pgprot_t;
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-
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#define pte_val(x) ((x).pte)
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-#define pmd_val(x) ((x).pmd)
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-#define pud_val(x) ((x).pud)
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-#define pgd_val(x) ((x).pgd)
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-#define pgprot_val(x) ((x).pgprot)
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-
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#define __pte(x) ((pte_t) { (x) } )
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+
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+#if CONFIG_ARM64_PGTABLE_LEVELS > 2
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+typedef struct { pmdval_t pmd; } pmd_t;
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+#define pmd_val(x) ((x).pmd)
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#define __pmd(x) ((pmd_t) { (x) } )
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+#endif
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+
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+#if CONFIG_ARM64_PGTABLE_LEVELS > 3
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+typedef struct { pudval_t pud; } pud_t;
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+#define pud_val(x) ((x).pud)
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#define __pud(x) ((pud_t) { (x) } )
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+#endif
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+
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+typedef struct { pgdval_t pgd; } pgd_t;
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+#define pgd_val(x) ((x).pgd)
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#define __pgd(x) ((pgd_t) { (x) } )
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+
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+typedef struct { pteval_t pgprot; } pgprot_t;
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+#define pgprot_val(x) ((x).pgprot)
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#define __pgprot(x) ((pgprot_t) { (x) } )
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#else /* !STRICT_MM_TYPECHECKS */
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typedef pteval_t pte_t;
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-typedef pmdval_t pmd_t;
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-typedef pudval_t pud_t;
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-typedef pgdval_t pgd_t;
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-typedef pteval_t pgprot_t;
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-
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#define pte_val(x) (x)
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-#define pmd_val(x) (x)
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-#define pud_val(x) (x)
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-#define pgd_val(x) (x)
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-#define pgprot_val(x) (x)
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-
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#define __pte(x) (x)
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+
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+#if CONFIG_ARM64_PGTABLE_LEVELS > 2
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+typedef pmdval_t pmd_t;
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+#define pmd_val(x) (x)
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#define __pmd(x) (x)
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+#endif
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+
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+#if CONFIG_ARM64_PGTABLE_LEVELS > 3
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+typedef pudval_t pud_t;
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+#define pud_val(x) (x)
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#define __pud(x) (x)
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+#endif
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+
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+typedef pgdval_t pgd_t;
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+#define pgd_val(x) (x)
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#define __pgd(x) (x)
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+
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+typedef pteval_t pgprot_t;
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+#define pgprot_val(x) (x)
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#define __pgprot(x) (x)
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#endif /* STRICT_MM_TYPECHECKS */
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-#endif /* __ASM_PGTABLE_4LEVEL_TYPES_H */
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+#if CONFIG_ARM64_PGTABLE_LEVELS == 2
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+#include <asm-generic/pgtable-nopmd.h>
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+#elif CONFIG_ARM64_PGTABLE_LEVELS == 3
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+#include <asm-generic/pgtable-nopud.h>
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+#endif
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+
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+#endif /* __ASM_PGTABLE_TYPES_H */
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