From 4abab5ad6c8465a7528ccdd5f49367da05f78bbd Mon Sep 17 00:00:00 2001
From: Vladimir Azarov <avm@intermediate-node.net>
Date: Tue, 1 Oct 2024 15:47:05 +0200
Subject: Initial version

---
 arch/m68k/atomic_arch.h | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 arch/m68k/atomic_arch.h

(limited to 'arch/m68k/atomic_arch.h')

diff --git a/arch/m68k/atomic_arch.h b/arch/m68k/atomic_arch.h
new file mode 100644
index 0000000..b369649
--- /dev/null
+++ b/arch/m68k/atomic_arch.h
@@ -0,0 +1,8 @@
+#define a_cas a_cas
+static inline int a_cas(volatile int *p, int t, int s)
+{
+	__asm__ __volatile__ (
+		"cas.l %0, %2, (%1)"
+		: "+d"(t) : "a"(p), "d"(s) : "memory", "cc");
+	return t;
+}
-- 
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