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, 5 insertions, 3 deletions

diff --git a/arch/mn10300/kernel/Makefile b/arch/mn10300/kernel/Makefile
index c4289e388071..99022351717a 100644
--- a/arch/mn10300/kernel/Makefile
+++ b/arch/mn10300/kernel/Makefile
@@ -3,13 +3,15 @@
 #
 extra-y := head.o init_task.o vmlinux.lds
 
-obj-y   := process.o signal.o entry.o fpu.o traps.o irq.o \
+fpu-obj-y := fpu-nofpu.o fpu-nofpu-low.o
+fpu-obj-$(CONFIG_FPU) := fpu.o fpu-low.o
+
+obj-y   := process.o signal.o entry.o traps.o irq.o \
            ptrace.o setup.o time.o sys_mn10300.o io.o kthread.o \
-           switch_to.o mn10300_ksyms.o kernel_execve.o
+           switch_to.o mn10300_ksyms.o kernel_execve.o $(fpu-obj-y)
 
 obj-$(CONFIG_MN10300_WD_TIMER) += mn10300-watchdog.o mn10300-watchdog-low.o
 
-obj-$(CONFIG_FPU) += fpu-low.o
 
 obj-$(CONFIG_MN10300_TTYSM) += mn10300-serial.o mn10300-serial-low.o \
                                mn10300-debug.o