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Diffstat (limited to 'arch/mips/include/asm/pgtable-bits.h')
-rw-r--r--arch/mips/include/asm/pgtable-bits.h36
1 files changed, 19 insertions, 17 deletions
diff --git a/arch/mips/include/asm/pgtable-bits.h b/arch/mips/include/asm/pgtable-bits.h
index e747bfa0be7e..ca11f14f40a3 100644
--- a/arch/mips/include/asm/pgtable-bits.h
+++ b/arch/mips/include/asm/pgtable-bits.h
@@ -32,39 +32,41 @@
* unpredictable things. The code (when it is written) to deal with
* this problem will be in the update_mmu_cache() code for the r4k.
*/
-#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32)
+#if defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32)
/*
* The following bits are directly used by the TLB hardware
*/
-#define _PAGE_R4KBUG (1 << 0) /* workaround for r4k bug */
-#define _PAGE_GLOBAL (1 << 0)
-#define _PAGE_VALID_SHIFT 1
+#define _PAGE_GLOBAL_SHIFT 0
+#define _PAGE_GLOBAL (1 << _PAGE_GLOBAL_SHIFT)
+#define _PAGE_VALID_SHIFT (_PAGE_GLOBAL_SHIFT + 1)
#define _PAGE_VALID (1 << _PAGE_VALID_SHIFT)
-#define _PAGE_SILENT_READ (1 << 1) /* synonym */
-#define _PAGE_DIRTY_SHIFT 2
-#define _PAGE_DIRTY (1 << _PAGE_DIRTY_SHIFT) /* The MIPS dirty bit */
-#define _PAGE_SILENT_WRITE (1 << 2)
-#define _CACHE_SHIFT 3
-#define _CACHE_MASK (7 << 3)
+#define _PAGE_DIRTY_SHIFT (_PAGE_VALID_SHIFT + 1)
+#define _PAGE_DIRTY (1 << _PAGE_DIRTY_SHIFT)
+#define _CACHE_SHIFT (_PAGE_DIRTY_SHIFT + 1)
+#define _CACHE_MASK (7 << _CACHE_SHIFT)
/*
* The following bits are implemented in software
*
* _PAGE_FILE semantics: set:pagecache unset:swap
*/
-#define _PAGE_PRESENT_SHIFT 6
+#define _PAGE_PRESENT_SHIFT (_CACHE_SHIFT + 3)
#define _PAGE_PRESENT (1 << _PAGE_PRESENT_SHIFT)
-#define _PAGE_READ_SHIFT 7
+#define _PAGE_READ_SHIFT (_PAGE_PRESENT_SHIFT + 1)
#define _PAGE_READ (1 << _PAGE_READ_SHIFT)
-#define _PAGE_WRITE_SHIFT 8
+#define _PAGE_WRITE_SHIFT (_PAGE_READ_SHIFT + 1)
#define _PAGE_WRITE (1 << _PAGE_WRITE_SHIFT)
-#define _PAGE_ACCESSED_SHIFT 9
+#define _PAGE_ACCESSED_SHIFT (_PAGE_WRITE_SHIFT + 1)
#define _PAGE_ACCESSED (1 << _PAGE_ACCESSED_SHIFT)
-#define _PAGE_MODIFIED_SHIFT 10
+#define _PAGE_MODIFIED_SHIFT (_PAGE_ACCESSED_SHIFT + 1)
#define _PAGE_MODIFIED (1 << _PAGE_MODIFIED_SHIFT)
-#define _PAGE_FILE (1 << 10)
+#define _PAGE_SILENT_READ _PAGE_VALID
+#define _PAGE_SILENT_WRITE _PAGE_DIRTY
+#define _PAGE_FILE _PAGE_MODIFIED
+
+#define _PFN_SHIFT (PAGE_SHIFT - 12 + _CACHE_SHIFT + 3)
#elif defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
@@ -172,7 +174,7 @@
#define _PFN_SHIFT (PAGE_SHIFT - 12 + _CACHE_SHIFT + 3)
-#endif /* defined(CONFIG_64BIT_PHYS_ADDR && defined(CONFIG_CPU_MIPS32) */
+#endif /* defined(CONFIG_PHYS_ADDR_T_64BIT && defined(CONFIG_CPU_MIPS32) */
#ifndef _PFN_SHIFT
#define _PFN_SHIFT PAGE_SHIFT