powerpc/8xx: Restore _PAGE_WRITETHRU

[linux-beck.git] / arch / powerpc / include / asm / pte-8xx.h

diff --git a/arch/powerpc/include/asm/pte-8xx.h b/arch/powerpc/include/asm/pte-8xx.h
index 68ba861331eea03fe73abeef74289b011ef327b4..d44826e4ff9772bf1a9b585d8466f03904030fc0 100644 (file)
--- a/arch/powerpc/include/asm/pte-8xx.h
+++ b/arch/powerpc/include/asm/pte-8xx.h
@@ -35,11 +35,12 @@
 #define _PAGE_SPECIAL  0x0008  /* SW entry, forced to 0 by the TLB miss */
 #define _PAGE_DIRTY    0x0100  /* C: page changed */
 
-/* These 3 software bits must be masked out when the entry is loaded
- * into the TLB, 2 SW bits left.
+/* These 4 software bits must be masked out when the entry is loaded
+ * into the TLB, 1 SW bit left(0x0080).
  */
 #define _PAGE_GUARDED  0x0010  /* software: guarded access */
 #define _PAGE_ACCESSED 0x0020  /* software: page referenced */
+#define _PAGE_WRITETHRU        0x0040  /* software: caching is write through */
 
 /* Setting any bits in the nibble with the follow two controls will
  * require a TLB exception handler change.  It is assumed unused bits