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>
git-mirror · May 14, 2012 · f007688 · f007688
1 parent dbdb4e9
commit f007688
Showing 1 changed file with 14 additions and 0 deletions.
diff --git 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();