1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
4 */
5
6#ifndef _ASM_ARC_ATOMIC_H
7#define _ASM_ARC_ATOMIC_H
8
9#ifndef __ASSEMBLY__
10
11#include <linux/types.h>
12#include <linux/compiler.h>
13#include <asm/cmpxchg.h>
14#include <asm/barrier.h>
15#include <asm/smp.h>
16
17#define arch_atomic_read(v)  READ_ONCE((v)->counter)
18
19#ifdef CONFIG_ARC_HAS_LLSC
20#include <asm/atomic-llsc.h>
21#else
22#include <asm/atomic-spinlock.h>
23#endif
24
25/*
26 * 64-bit atomics
27 */
28#ifdef CONFIG_GENERIC_ATOMIC64
29#include <asm-generic/atomic64.h>
30#else
31#include <asm/atomic64-arcv2.h>
32#endif
33
34#endif	/* !__ASSEMBLY__ */
35
36#endif
37