linux 2.6.16.38 w/ vs2.0.3-rc1

[linux-2.6.git] / include / asm-mips / pgtable-64.h

diff --git a/include/asm-mips/pgtable-64.h b/include/asm-mips/pgtable-64.h
index e3db932..82166b2 100644 (file)
--- a/include/asm-mips/pgtable-64.h
+++ b/include/asm-mips/pgtable-64.h
@@ -9,6 +9,7 @@
 #ifndef _ASM_PGTABLE_64_H
 #define _ASM_PGTABLE_64_H
 
+#include <linux/config.h>
 #include <linux/linkage.h>
 
 #include <asm/addrspace.h>
@@ -223,12 +224,15 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset)
 #define __swp_entry_to_pte(x)  ((pte_t) { (x).val })
 
 /*
- * Bits 0, 4, 6, and 7 are taken. Let's leave bits 1, 2, 3, and 5 alone to
- * make things easier, and only use the upper 56 bits for the page offset...
+ * Bits 0, 1, 2, 7 and 8 are taken, split up the 32 bits of offset
+ * into this range:
  */
-#define PTE_FILE_MAX_BITS      56
+#define PTE_FILE_MAX_BITS      32
 
-#define pte_to_pgoff(_pte)     ((_pte).pte >> 8)
-#define pgoff_to_pte(off)      ((pte_t) { ((off) << 8) | _PAGE_FILE })
+#define pte_to_pgoff(_pte) \
+       ((((_pte).pte >> 3) & 0x1f ) + (((_pte).pte >> 9) << 6 ))
+
+#define pgoff_to_pte(off) \
+       ((pte_t) { (((off) & 0x1f) << 3) + (((off) >> 6) << 9) + _PAGE_FILE })
 
 #endif /* _ASM_PGTABLE_64_H */