From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001
From: Srikant Patnaik
Date: Sun, 11 Jan 2015 12:28:04 +0530
Subject: Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
---
 arch/avr32/kernel/switch_to.S | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 arch/avr32/kernel/switch_to.S

(limited to 'arch/avr32/kernel/switch_to.S')

diff --git a/arch/avr32/kernel/switch_to.S b/arch/avr32/kernel/switch_to.S
new file mode 100644
index 00000000..a48d0467
--- /dev/null
+++ b/arch/avr32/kernel/switch_to.S
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <asm/sysreg.h>
+
+	.text
+	.global	__switch_to
+	.type	__switch_to, @function
+
+	/* Switch thread context from "prev" to "next", returning "last"
+	 *   r12 :	prev
+	 *   r11 :	&prev->thread + 1
+	 *   r10 :	&next->thread
+	 */
+__switch_to:
+	stm	--r11, r0,r1,r2,r3,r4,r5,r6,r7,sp,lr
+	mfsr	r9, SYSREG_SR
+	st.w	--r11, r9
+	ld.w	r8, r10++
+	/*
+	 * schedule() may have been called from a mode with a different
+	 * set of registers. Make sure we don't lose anything here.
+	 */
+	pushm	r10,r12
+	mtsr	SYSREG_SR, r8
+	frs			/* flush the return stack */
+	sub	pc, -2		/* flush the pipeline */
+	popm	r10,r12
+	ldm	r10++, r0,r1,r2,r3,r4,r5,r6,r7,sp,pc
+	.size	__switch_to, . - __switch_to
-- 
cgit