powerpc/mm/book3s-64: Move software-used bits in PTE

This moves the _PAGE_SPECIAL and _PAGE_SOFT_DIRTY bits in the Linux
PTE on 64-bit Book 3S systems to bit positions which are designated
for software use in the radix PTE format used by PowerISA v3.0 CPUs
in radix mode.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/include/asm/book3s/64/hash.h b/arch/powerpc/include/asm/book3s/64/hash.h
index cd4bf95..ef9bd68 100644 (file)
--- a/arch/powerpc/include/asm/book3s/64/hash.h
+++ b/arch/powerpc/include/asm/book3s/64/hash.h
@@ -26,13 +26,13 @@
 #define _PAGE_WRITETHRU                0x00040 /* W: cache write-through */
 #define _PAGE_DIRTY            0x00080 /* C: page changed */
 #define _PAGE_ACCESSED         0x00100 /* R: page referenced */
+#define _PAGE_SPECIAL          0x00400 /* software: special page */
 #define _PAGE_BUSY             0x00800 /* software: PTE & hash are busy */
-#define _PAGE_SPECIAL          0x10000 /* software: special page */
 
 #ifdef CONFIG_MEM_SOFT_DIRTY
-#define _PAGE_SOFT_DIRTY       0x20000 /* software: software dirty tracking */
+#define _PAGE_SOFT_DIRTY       0x200 /* software: software dirty tracking */
 #else
-#define _PAGE_SOFT_DIRTY       0x00000
+#define _PAGE_SOFT_DIRTY       0x000
 #endif
 
 #define _PAGE_F_GIX_SHIFT      57