1 files changed, 35 insertions, 0 deletions

diff --git a/arch/sh/include/asm/switch_to_64.h b/arch/sh/include/asm/switch_to_64.h
new file mode 100644
index 000000000000..ba3129d6bc21
--- /dev/null
+++ b/arch/sh/include/asm/switch_to_64.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003  Paul Mundt
+ * Copyright (C) 2004  Richard Curnow
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef __ASM_SH_SWITCH_TO_64_H
+#define __ASM_SH_SWITCH_TO_64_H
+
+struct thread_struct;
+struct task_struct;
+
+/*
+ *      switch_to() should switch tasks to task nr n, first
+ */
+struct task_struct *sh64_switch_to(struct task_struct *prev,
+                                   struct thread_struct *prev_thread,
+                                   struct task_struct *next,
+                                   struct thread_struct *next_thread);
+
+#define switch_to(prev,next,last)                               \
+do {                                                            \
+        if (last_task_used_math != next) {                      \
+                struct pt_regs *regs = next->thread.uregs;      \
+                if (regs) regs->sr |= SR_FD;                    \
+        }                                                       \
+        last = sh64_switch_to(prev, &prev->thread, next,        \
+                              &next->thread);                   \
+} while (0)
+
+
+#endif /* __ASM_SH_SWITCH_TO_64_H */