MN10300: Make the FPU operate in non-lazy mode under SMP

Make the FPU operate in non-lazy mode under SMP so that when the process that
is currently using the FPU migrates to a different CPU, we don't have to ping
its previous CPU to flush the FPU context.

Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com>
Signed-off-by: Kiyoshi Owada <owada.kiyoshi@jp.panasonic.com>
Signed-off-by: David Howells <dhowells@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/mn10300/proc-mn103e010/proc-init.c b/arch/mn10300/proc-mn103e010/proc-init.c
index 9a482efafa82..0cee7878bee9 100644
--- a/arch/mn10300/proc-mn103e010/proc-init.c
+++ b/arch/mn10300/proc-mn103e010/proc-init.c
@@ -9,6 +9,7 @@
  * 2 of the Licence, or (at your option) any later version.
  */
 #include <linux/kernel.h>
+#include <asm/fpu.h>
 #include <asm/rtc.h>
 
 /*
@@ -28,6 +29,7 @@ asmlinkage void __init processor_init(void)
         __set_intr_stub(EXCEP_DAERROR,          dtlb_aerror);
         __set_intr_stub(EXCEP_BUSERROR,         raw_bus_error);
         __set_intr_stub(EXCEP_DOUBLE_FAULT,     double_fault);
+        __set_intr_stub(EXCEP_FPU_DISABLED,     fpu_disabled);
         __set_intr_stub(EXCEP_SYSCALL0,         system_call);
 
         __set_intr_stub(EXCEP_NMI,              nmi_handler);