From: Paul Mundt <lethal@linux-sh.org>
Date: Mon, 14 May 2012 04:04:08 +0000 (+0900)
Subject: sh64: Provide EXPEVT helper.
X-Git-Tag: v3.5-rc1~134^2~22
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f007688a50cf5724049a4a5f17023fcdb0966b54;p=profile%2Fivi%2Fkernel-adaptation-intel-automotive.git

sh64: Provide EXPEVT helper.

We need a lookup_exception_vector() helper for sh64 in order to use the
common page fault code.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

diff --git a/arch/sh/include/asm/traps_64.h b/arch/sh/include/asm/traps_64.h
index c52d7f9..ef5eff9 100644
--- a/arch/sh/include/asm/traps_64.h
+++ b/arch/sh/include/asm/traps_64.h
@@ -10,8 +10,22 @@
 #ifndef __ASM_SH_TRAPS_64_H
 #define __ASM_SH_TRAPS_64_H
 
+#include <cpu/registers.h>
+
 extern void phys_stext(void);
 
+#define lookup_exception_vector()		\
+({						\
+	unsigned long _vec;			\
+						\
+	__asm__ __volatile__ (			\
+		"getcon " __EXPEVT ", %0\n\t"	\
+		: "=r" (_vec)			\
+	);					\
+						\
+	_vec;					\
+})
+
 static inline void trigger_address_error(void)
 {
 	phys_stext();