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/sh/include/asm/cmpxchg-llsc.h | 71 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 arch/sh/include/asm/cmpxchg-llsc.h

(limited to 'arch/sh/include/asm/cmpxchg-llsc.h')

diff --git a/arch/sh/include/asm/cmpxchg-llsc.h b/arch/sh/include/asm/cmpxchg-llsc.h
new file mode 100644
index 00000000..47136661
--- /dev/null
+++ b/arch/sh/include/asm/cmpxchg-llsc.h
@@ -0,0 +1,71 @@
+#ifndef __ASM_SH_CMPXCHG_LLSC_H
+#define __ASM_SH_CMPXCHG_LLSC_H
+
+static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val)
+{
+	unsigned long retval;
+	unsigned long tmp;
+
+	__asm__ __volatile__ (
+		"1:					\n\t"
+		"movli.l	@%2, %0	! xchg_u32	\n\t"
+		"mov		%0, %1			\n\t"
+		"mov		%3, %0			\n\t"
+		"movco.l	%0, @%2			\n\t"
+		"bf		1b			\n\t"
+		"synco					\n\t"
+		: "=&z"(tmp), "=&r" (retval)
+		: "r" (m), "r" (val)
+		: "t", "memory"
+	);
+
+	return retval;
+}
+
+static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val)
+{
+	unsigned long retval;
+	unsigned long tmp;
+
+	__asm__ __volatile__ (
+		"1:					\n\t"
+		"movli.l	@%2, %0	! xchg_u8	\n\t"
+		"mov		%0, %1			\n\t"
+		"mov		%3, %0			\n\t"
+		"movco.l	%0, @%2			\n\t"
+		"bf		1b			\n\t"
+		"synco					\n\t"
+		: "=&z"(tmp), "=&r" (retval)
+		: "r" (m), "r" (val & 0xff)
+		: "t", "memory"
+	);
+
+	return retval;
+}
+
+static inline unsigned long
+__cmpxchg_u32(volatile int *m, unsigned long old, unsigned long new)
+{
+	unsigned long retval;
+	unsigned long tmp;
+
+	__asm__ __volatile__ (
+		"1:						\n\t"
+		"movli.l	@%2, %0	! __cmpxchg_u32		\n\t"
+		"mov		%0, %1				\n\t"
+		"cmp/eq		%1, %3				\n\t"
+		"bf		2f				\n\t"
+		"mov		%4, %0				\n\t"
+		"2:						\n\t"
+		"movco.l	%0, @%2				\n\t"
+		"bf		1b				\n\t"
+		"synco						\n\t"
+		: "=&z" (tmp), "=&r" (retval)
+		: "r" (m), "r" (old), "r" (new)
+		: "t", "memory"
+	);
+
+	return retval;
+}
+
+#endif /* __ASM_SH_CMPXCHG_LLSC_H */
-- 
cgit