sh2(A) exception handler update

This patch is

By sh2
- Remove duplicate code
- Reduce stack usage
- Cleanup and little optimize

By sh2a
- Add missing handler(256 to 511)
- Use sh2a instructions handler

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c
index e08b3bfeb656..511a9426cec5 100644
--- a/arch/sh/kernel/traps_32.c
+++ b/arch/sh/kernel/traps_32.c
@@ -43,6 +43,7 @@
 # define TRAP_ILLEGAL_SLOT_INST 6
 # define TRAP_ADDRESS_ERROR     9
 # ifdef CONFIG_CPU_SH2A
+#  define TRAP_FPU_ERROR        13
 #  define TRAP_DIVZERO_ERROR    17
 #  define TRAP_DIVOVF_ERROR     18
 # endif
@@ -851,6 +852,9 @@ void __init trap_init(void)
 #ifdef CONFIG_CPU_SH2A
         set_exception_table_vec(TRAP_DIVZERO_ERROR, do_divide_error);
         set_exception_table_vec(TRAP_DIVOVF_ERROR, do_divide_error);
+#ifdef CONFIG_SH_FPU
+        set_exception_table_vec(TRAP_FPU_ERROR, fpu_error_trap_handler);
+#endif
 #endif
 
         /* Setup VBR for boot cpu */