增加所有文件

arch/include/armv7-r/atomic.h

@@ -0,0 +1,62 @@
+/*
+ * atomic.h
+ *
+ * Copyright (c) 2020 Semidrive Semiconductor.
+ * All rights reserved.
+ *
+ * Description: ARM atomic interface.
+ *
+ * Revision History:
+ * -----------------
+ */
+
+#ifndef INCLUDE_ARCH_ATOMIC_H
+#define INCLUDE_ARCH_ATOMIC_H
+
+#ifndef ASSEMBLY
+
+#include <compiler.h>
+
+__BEGIN_CDECLS
+
+/*
+ * atomic swap.
+ *
+ * @ptr     address of data A.
+ * @val     value of data B.
+ * @return  old value of data A.
+ */
+int arch_atomic_swap(int *ptr, int val);
+
+/*
+ * atomic add.
+ *
+ * @ptr     address of data A.
+ * @val     value of data B.
+ * @return  old value of data A.
+ */
+int arch_atomic_add(int *ptr, int val);
+
+/*
+ * atomic and.
+ *
+ * @ptr     address of data A.
+ * @val     value of data B.
+ * @return  old value of data A.
+ */
+int arch_atomic_and(int *ptr, int val);
+
+/*
+ * atomic or.
+ *
+ * @ptr     address of data A.
+ * @val     value of data B.
+ * @return  old value of data A.
+ */
+int arch_atomic_or(int *ptr, int val);
+
+__END_CDECLS
+
+#endif
+
+#endif