diff mbox

[8/9] powerpc/mm/book3s-64: Move software-used bits in PTE

Message ID 1456108880-27464-9-git-send-email-paulus@ozlabs.org (mailing list archive)
State Accepted
Headers show

Commit Message

Paul Mackerras Feb. 22, 2016, 2:41 a.m. UTC 
From: Paul Mackerras <paulus@samba.org>

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>
---
 arch/powerpc/include/asm/book3s/64/hash.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff mbox

Patch

diff --git a/arch/powerpc/include/asm/book3s/64/hash.h b/arch/powerpc/include/asm/book3s/64/hash.h
index cd4bf95..ef9bd68 100644
--- 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