powerpc/mm: Add option for non-atomic PTE updates to ppc64

[deliverable/linux.git] / arch / powerpc / include / asm / pte-hash64.h

diff --git a/arch/powerpc/include/asm/pte-hash64.h b/arch/powerpc/include/asm/pte-hash64.h
index b61b7e4a18dea3ea3683189d74b53d855fc60e73..0419eeb53274c64891c87f1c573e712e6167d62b 100644 (file)
--- a/arch/powerpc/include/asm/pte-hash64.h
+++ b/arch/powerpc/include/asm/pte-hash64.h
@@ -41,6 +41,8 @@
 #define _PTEIDX_SECONDARY      0x8
 #define _PTEIDX_GROUP_IX       0x7
 
+/* Hash table based platforms need atomic updates of the linux PTE */
+#define PTE_ATOMIC_UPDATES     1
 
 #ifdef CONFIG_PPC_64K_PAGES
 #include <asm/pte-hash64-64k.h>