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