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>
diff --git a/arch/mn10300/kernel/asm-offsets.c b/arch/mn10300/kernel/asm-offsets.c
index 02dc7e4..78e290e 100644
--- a/arch/mn10300/kernel/asm-offsets.c
+++ b/arch/mn10300/kernel/asm-offsets.c
@@ -67,6 +67,15 @@
OFFSET(THREAD_A3, thread_struct, a3);
OFFSET(THREAD_USP, thread_struct, usp);
OFFSET(THREAD_FRAME, thread_struct, __frame);
+#ifdef CONFIG_FPU
+ OFFSET(THREAD_FPU_FLAGS, thread_struct, fpu_flags);
+ OFFSET(THREAD_FPU_STATE, thread_struct, fpu_state);
+ DEFINE(__THREAD_USING_FPU, THREAD_USING_FPU);
+ DEFINE(__THREAD_HAS_FPU, THREAD_HAS_FPU);
+#endif /* CONFIG_FPU */
+ BLANK();
+
+ OFFSET(TASK_THREAD, task_struct, thread);
BLANK();
DEFINE(CLONE_VM_asm, CLONE_VM);