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