3 files changed, 5 insertions, 0 deletions

diff --git a/arch/sparc64/lib/NGbzero.S b/arch/sparc64/lib/NGbzero.S
index e86baece5cc8..f10e4529ee37 100644
--- a/arch/sparc64/lib/NGbzero.S
+++ b/arch/sparc64/lib/NGbzero.S
@@ -88,6 +88,7 @@ NGbzero_loop:
         bne,pt          %xcc, NGbzero_loop
          add            %o0, 64, %o0
 
+        membar          #Sync
         wr              %o4, 0x0, %asi
         brz,pn          %o1, NGbzero_done
 NGbzero_medium:
diff --git a/arch/sparc64/lib/NGmemcpy.S b/arch/sparc64/lib/NGmemcpy.S
index 8e522b3dc095..66063a9a66b8 100644
--- a/arch/sparc64/lib/NGmemcpy.S
+++ b/arch/sparc64/lib/NGmemcpy.S
@@ -247,6 +247,8 @@ FUNC_NAME:	/* %o0=dst, %o1=src, %o2=len */
         /* fall through */
 
 60:     
+        membar          #Sync
+
         /* %o2 contains any final bytes still needed to be copied
          * over. If anything is left, we copy it one byte at a time.
          */
diff --git a/arch/sparc64/lib/NGpage.S b/arch/sparc64/lib/NGpage.S
index 7d7c3bb8dcbf..8ce3a0c9c537 100644
--- a/arch/sparc64/lib/NGpage.S
+++ b/arch/sparc64/lib/NGpage.S
@@ -41,6 +41,7 @@ NGcopy_user_page:	/* %o0=dest, %o1=src, %o2=vaddr */
         subcc           %g7, 64, %g7
         bne,pt          %xcc, 1b
          add            %o0, 32, %o0
+        membar          #Sync
         retl
          nop
 
@@ -63,6 +64,7 @@ NGclear_user_page:	/* %o0=dest, %o1=vaddr */
         subcc           %g7, 64, %g7
         bne,pt          %xcc, 1b
          add            %o0, 32, %o0
+        membar          #Sync
         retl
          nop