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Diffstat (limited to 'linux/dev/include/asm-i386/page.h')
-rw-r--r--linux/dev/include/asm-i386/page.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/linux/dev/include/asm-i386/page.h b/linux/dev/include/asm-i386/page.h
new file mode 100644
index 0000000..2bb6837
--- /dev/null
+++ b/linux/dev/include/asm-i386/page.h
@@ -0,0 +1,64 @@
+#ifndef _I386_PAGE_H
+#define _I386_PAGE_H
+
+#ifndef MACH_INCLUDE
+/* PAGE_SHIFT determines the page size */
+#define PAGE_SHIFT 12
+#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
+#endif
+
+#ifdef __KERNEL__
+
+#define STRICT_MM_TYPECHECKS
+
+#ifdef STRICT_MM_TYPECHECKS
+/*
+ * These are used to make use of C type-checking..
+ */
+typedef struct { unsigned long pte; } pte_t;
+typedef struct { unsigned long pmd; } pmd_t;
+typedef struct { unsigned long pgd; } pgd_t;
+typedef struct { unsigned long pgprot; } pgprot_t;
+
+#define pte_val(x) ((x).pte)
+#define pmd_val(x) ((x).pmd)
+#define pgd_val(x) ((x).pgd)
+#define pgprot_val(x) ((x).pgprot)
+
+#define __pte(x) ((pte_t) { (x) } )
+#define __pmd(x) ((pmd_t) { (x) } )
+#define __pgd(x) ((pgd_t) { (x) } )
+#define __pgprot(x) ((pgprot_t) { (x) } )
+
+#else
+/*
+ * .. while these make it easier on the compiler
+ */
+typedef unsigned long pte_t;
+typedef unsigned long pmd_t;
+typedef unsigned long pgd_t;
+typedef unsigned long pgprot_t;
+
+#define pte_val(x) (x)
+#define pmd_val(x) (x)
+#define pgd_val(x) (x)
+#define pgprot_val(x) (x)
+
+#define __pte(x) (x)
+#define __pmd(x) (x)
+#define __pgd(x) (x)
+#define __pgprot(x) (x)
+
+#endif
+
+/* to align the pointer to the (next) page boundary */
+#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
+
+/* This handles the memory map.. */
+#define PAGE_OFFSET 0
+#define MAP_NR(addr) (((unsigned long)(addr)) >> PAGE_SHIFT)
+
+#endif /* __KERNEL__ */
+
+#endif /* _I386_PAGE_H */