diff options
Diffstat (limited to 'arch/arc/include/asm/atomic.h')
| -rw-r--r-- | arch/arc/include/asm/atomic.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/arc/include/asm/atomic.h b/arch/arc/include/asm/atomic.h new file mode 100644 index 0000000000..592d7fffc2 --- /dev/null +++ b/arch/arc/include/asm/atomic.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) + */ + +#ifndef _ASM_ARC_ATOMIC_H +#define _ASM_ARC_ATOMIC_H + +#ifndef __ASSEMBLY__ + +#include <linux/types.h> +#include <linux/compiler.h> +#include <asm/cmpxchg.h> +#include <asm/barrier.h> +#include <asm/smp.h> + +#define arch_atomic_read(v) READ_ONCE((v)->counter) + +#ifdef CONFIG_ARC_HAS_LLSC +#include <asm/atomic-llsc.h> +#else +#include <asm/atomic-spinlock.h> +#endif + +/* + * 64-bit atomics + */ +#ifdef CONFIG_GENERIC_ATOMIC64 +#include <asm-generic/atomic64.h> +#else +#include <asm/atomic64-arcv2.h> +#endif + +#endif /* !__ASSEMBLY__ */ + +#endif |