powerpc: Use MSR_64BIT in places

Use the new MSR_64BIT in a few places. Some of these are already ifdef'ed
for BOOKE vs BOOKS, but it's still clearer, MSR_SF does not immediately
parse as "MSR bit for 64bit".

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 6d17c37..73d6e9a 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -655,7 +655,7 @@
 	oris	r11,r11,0x8000		/* CM bit set, we'll set ICM later */
 	mtmsr	r11
 #else /* CONFIG_PPC_BOOK3E */
-	li	r12,(MSR_SF | MSR_ISF)@highest
+	li	r12,(MSR_64BIT | MSR_ISF)@highest
 	sldi	r12,r12,48
 	or	r11,r11,r12
 	mtmsrd	r11
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 27c4a45..da989ff 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -381,7 +381,7 @@
 	       regs, uc, &uc->uc_mcontext);
 #endif
 	if (show_unhandled_signals && printk_ratelimit())
-		printk(regs->msr & MSR_SF ? fmt64 : fmt32,
+		printk(regs->msr & MSR_64BIT ? fmt64 : fmt32,
 			current->comm, current->pid, "rt_sigreturn",
 			(long)uc, regs->nip, regs->link);
 
@@ -469,7 +469,7 @@
 	       regs, frame, newsp);
 #endif
 	if (show_unhandled_signals && printk_ratelimit())
-		printk(regs->msr & MSR_SF ? fmt64 : fmt32,
+		printk(regs->msr & MSR_64BIT ? fmt64 : fmt32,
 			current->comm, current->pid, "setup_rt_frame",
 			(long)frame, regs->nip, regs->link);
 
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index cb71cf2..4a6a109 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -199,7 +199,7 @@
 	} else if (show_unhandled_signals &&
 		    unhandled_signal(current, signr) &&
 		    printk_ratelimit()) {
-			printk(regs->msr & MSR_SF ? fmt64 : fmt32,
+			printk(regs->msr & MSR_64BIT ? fmt64 : fmt32,
 				current->comm, current->pid, signr,
 				addr, regs->nip, regs->link, code);
 		}