diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 9029afd1fa2ab..775ad0b77830f 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1477,8 +1477,10 @@ USE_TEXT_SECTION()
  */
 	.balign	IFETCH_ALIGN_BYTES
 do_hash_page:
-#ifdef CONFIG_PPC_STD_MMU_64
-	andis.	r0,r4,0xa450		/* weird error? */
+	#ifdef CONFIG_PPC_STD_MMU_64
+	lis	r0,DSISR_BAD_FAULT_64S@h
+	ori	r0,r0,DSISR_BAD_FAULT_64S@l
+	and.	r0,r4,r0		/* weird error? */
 	bne-	handle_page_fault	/* if not, try to insert a HPTE */
 	CURRENT_THREAD_INFO(r11, r1)
 	lwz	r0,TI_PREEMPT(r11)	/* If we're in an "NMI" */
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index 067b843a63a94..b1aa0119ad202 100644
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -388,7 +388,7 @@ DataAccess:
 	EXCEPTION_PROLOG
 	mfspr	r10,SPRN_DSISR
 	stw	r10,_DSISR(r11)
-	andis.	r0,r10,0xa470		/* weird error? */
+	andis.	r0,r10,DSISR_BAD_FAULT_32S@h
 	bne	1f			/* if not, try to put a PTE */
 	mfspr	r4,SPRN_DAR		/* into the hash table */
 	rlwinm	r3,r10,32-15,21,21	/* DSISR_STORE -> _PAGE_RW */