| /* 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 |