Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

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

diff --git a/include/asm-mips/pgtable-64.h b/include/asm-mips/pgtable-64.h
index 35007250ac2bf924d6dae3a55b23abd0f564dc8d..e3db93212eab0845b7c82e697d116b67a67c786c 100644 (file)
--- a/include/asm-mips/pgtable-64.h
+++ b/include/asm-mips/pgtable-64.h
@@ -9,7 +9,6 @@
 #ifndef _ASM_PGTABLE_64_H
 #define _ASM_PGTABLE_64_H
 
-#include <linux/config.h>
 #include <linux/linkage.h>
 
 #include <asm/addrspace.h>
@@ -114,7 +113,7 @@ extern pmd_t invalid_pmd_table[PTRS_PER_PMD];
 extern pmd_t empty_bad_pmd_table[PTRS_PER_PMD];
 
 /*
- * Empty pmd entries point to the invalid_pte_table.
+ * Empty pgd/pmd entries point to the invalid_pte_table.
  */
 static inline int pmd_none(pmd_t pmd)
 {
@@ -156,7 +155,8 @@ static inline void pud_clear(pud_t *pudp)
        pud_val(*pudp) = ((unsigned long) invalid_pmd_table);
 }
 
-#define pte_page(x)            pfn_to_page((unsigned long)((pte_val(x) >> PAGE_SHIFT)))
+#define pte_page(x)            pfn_to_page(pte_pfn(x))
+
 #ifdef CONFIG_CPU_VR41XX
 #define pte_pfn(x)             ((unsigned long)((x).pte >> (PAGE_SHIFT + 2)))
 #define pfn_pte(pfn, prot)     __pte(((pfn) << (PAGE_SHIFT + 2)) | pgprot_val(prot))
@@ -167,12 +167,13 @@ static inline void pud_clear(pud_t *pudp)
 
 #define __pgd_offset(address)  pgd_index(address)
 #define __pud_offset(address)  (((address) >> PUD_SHIFT) & (PTRS_PER_PUD-1))
-#define page_pte(page) page_pte_prot(page, __pgprot(0))
+#define __pmd_offset(address)  pmd_index(address)
 
 /* to find an entry in a kernel page-table-directory */
 #define pgd_offset_k(address) pgd_offset(&init_mm, 0)
 
 #define pgd_index(address)     (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
+#define pmd_index(address)     (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
 
 /* to find an entry in a page-table-directory */
 #define pgd_offset(mm,addr)    ((mm)->pgd + pgd_index(addr))
@@ -185,8 +186,7 @@ static inline unsigned long pud_page(pud_t pud)
 /* Find an entry in the second-level page table.. */
 static inline pmd_t *pmd_offset(pud_t * pud, unsigned long address)
 {
-       return (pmd_t *) pud_page(*pud) +
-              ((address >> PMD_SHIFT) & (PTRS_PER_PMD - 1));
+       return (pmd_t *) pud_page(*pud) + pmd_index(address);
 }
 
 /* Find an entry in the third-level page table.. */
@@ -223,15 +223,12 @@ 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, 1, 2, 7 and 8 are taken, split up the 32 bits of offset
- * into this range:
+ * 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...
  */
-#define PTE_FILE_MAX_BITS      32
-
-#define pte_to_pgoff(_pte) \
-       ((((_pte).pte >> 3) & 0x1f ) + (((_pte).pte >> 9) << 6 ))
+#define PTE_FILE_MAX_BITS      56
 
-#define pgoff_to_pte(off) \
-       ((pte_t) { (((off) & 0x1f) << 3) + (((off) >> 6) << 9) + _PAGE_FILE })
+#define pte_to_pgoff(_pte)     ((_pte).pte >> 8)
+#define pgoff_to_pte(off)      ((pte_t) { ((off) << 8) | _PAGE_FILE })
 
 #endif /* _ASM_PGTABLE_64_H */