Add a prefetch abort handler

This patch adds a prefetch abort handler similar to the data abort one
and renames the latter for consistency. Initial implementation by Paul
Brook with some renaming by Catalin Marinas.

Signed-off-by: Paul Brook <paul@codesourcery.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 6c90c50..597ed00 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -352,6 +352,11 @@
 		b	do_mmap2
 #endif
 
+ENTRY(pabort_ifar)
+		mrc	p15, 0, r0, cr6, cr0, 2
+ENTRY(pabort_noifar)
+		mov	pc, lr
+
 #ifdef CONFIG_OABI_COMPAT
 
 /*