patch-2.3.23 linux/include/asm-arm/page.h

• Lines: 89
• Date: Wed Oct 20 16:29:08 1999
• Orig file: v2.3.22/linux/include/asm-arm/page.h
• Orig date: Mon Jul 19 09:52:57 1999

diff -u --recursive --new-file v2.3.22/linux/include/asm-arm/page.h linux/include/asm-arm/page.h
@@ -1,10 +1,62 @@
 #ifndef _ASMARM_PAGE_H
 #define _ASMARM_PAGE_H
 
-#include <asm/arch/memory.h>
 #include <asm/proc/page.h>
 
+#define PAGE_SIZE       (1UL << PAGE_SHIFT)
+#define PAGE_MASK       (~(PAGE_SIZE-1))
+
 #ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+
+#define STRICT_MM_TYPECHECKS
+
+#define clear_page(page)	memzero((void *)(page), PAGE_SIZE)
+extern void copy_page(unsigned long to, unsigned long from);
+
+#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
+#endif /* !__ASSEMBLY__ */
+
+/* to align the pointer to the (next) page boundary */
+#define PAGE_ALIGN(addr)	(((addr)+PAGE_SIZE-1)&PAGE_MASK)
 
 #ifndef __ASSEMBLY__
 
@@ -17,19 +69,14 @@
 	BUG(); \
 } while (0)
 
-#endif /* __ASSEMBLY__ */
-
-#define get_user_page(vaddr)		__get_free_page(GFP_KERNEL)
-#define free_user_page(page, addr)	free_page(addr)
-#define clear_page(page)		memzero((void *)(page), PAGE_SIZE)
-#define copy_page(to,from)		memcpy((void *)(to), (void *)(from), PAGE_SIZE)
+#endif /* !__ASSEMBLY__ */
 
-#endif
+#include <asm/arch/memory.h>
 
-/* unsigned long __pa(void *x) */
 #define __pa(x)			__virt_to_phys((unsigned long)(x))
-
-/* void *__va(unsigned long x) */
 #define __va(x)			((void *)(__phys_to_virt((unsigned long)(x))))
+#define MAP_NR(addr)		(((unsigned long)(addr) - PAGE_OFFSET) >> PAGE_SHIFT)
+
+#endif
 
 #endif