patch-2.4.22 linux-2.4.22/include/asm-mips/pgtable-bits.h
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- Lines: 50
- Date:
2003-08-25 04:44:44.000000000 -0700
- Orig file:
linux-2.4.21/include/asm-mips/pgtable-bits.h
- Orig date:
2002-11-28 15:53:15.000000000 -0800
diff -urN linux-2.4.21/include/asm-mips/pgtable-bits.h linux-2.4.22/include/asm-mips/pgtable-bits.h
@@ -33,6 +33,30 @@
* 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_CPU_MIPS32) && defined(CONFIG_64BIT_PHYS_ADDR)
+
+#define _PAGE_PRESENT (1<<6) /* implemented in software */
+#define _PAGE_READ (1<<7) /* implemented in software */
+#define _PAGE_WRITE (1<<8) /* implemented in software */
+#define _PAGE_ACCESSED (1<<9) /* implemented in software */
+#define _PAGE_MODIFIED (1<<10) /* implemented in software */
+
+#define _PAGE_R4KBUG (1<<0) /* workaround for r4k bug */
+#define _PAGE_GLOBAL (1<<0)
+#define _PAGE_VALID (1<<1)
+#define _PAGE_SILENT_READ (1<<1) /* synonym */
+#define _PAGE_DIRTY (1<<2) /* The MIPS dirty bit */
+#define _PAGE_SILENT_WRITE (1<<2)
+#define _CACHE_MASK (7<<3)
+
+/* MIPS32 defines only values 2 and 3. The rest are implementation
+ * dependent.
+ */
+#define _CACHE_UNCACHED (2<<3)
+#define _CACHE_CACHABLE_NONCOHERENT (3<<3)
+
+#else
+
#define _PAGE_PRESENT (1<<0) /* implemented in software */
#define _PAGE_READ (1<<1) /* implemented in software */
#define _PAGE_WRITE (1<<2) /* implemented in software */
@@ -82,6 +106,7 @@
#endif
#endif
+#endif /* defined(CONFIG_CPU_MIPS32) && defined(CONFIG_64BIT_PHYS_ADDR) */
#define __READABLE (_PAGE_READ | _PAGE_SILENT_READ | _PAGE_ACCESSED)
#define __WRITEABLE (_PAGE_WRITE | _PAGE_SILENT_WRITE | _PAGE_MODIFIED)
@@ -96,6 +121,10 @@
#define PAGE_CACHABLE_DEFAULT _CACHE_CACHABLE_COW
#endif
+#if defined(CONFIG_CPU_MIPS32) && defined(CONFIG_64BIT_PHYS_ADDR)
+#define CONF_CM_DEFAULT (PAGE_CACHABLE_DEFAULT >> 3)
+#else
#define CONF_CM_DEFAULT (PAGE_CACHABLE_DEFAULT >> 9)
+#endif
#endif /* _ASM_PGTABLE_BITS_H */
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