M68K: add arch_atomic.h

headers/private/kernel/arch/m68k/arch_atomic.h

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2014, Paweł Dziepak, [email protected].
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		François Revol <[email protected]>
+ */
+#ifndef _KERNEL_ARCH_M68K_ATOMIC_H
+#define _KERNEL_ARCH_M68K_ATOMIC_H
+
+
+static inline void
+memory_read_barrier_inline(void)
+{
+	asm volatile ("nop;" : : : "memory");
+#warning M68k: check memory_read_barrier_inline (FNOP ?)
+}
+
+
+static inline void
+memory_write_barrier_inline(void)
+{
+	asm volatile ("nop;" : : : "memory");
+#warning M68k: check memory_write_barrier_inline (FNOP ?)
+}
+
+
+static inline void
+memory_full_barrier_inline(void)
+{
+	asm volatile ("nop;" : : : "memory");
+#warning M68k: check memory_full_barrier_inline (FNOP ?)
+}
+
+
+#define memory_read_barrier memory_read_barrier_inline
+#define memory_write_barrier memory_write_barrier_inline
+#define memory_full_barrier memory_full_barrier_inline
+
+
+#endif	// _KERNEL_ARCH_M68K_ATOMIC_H