| 1 |
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| 2 | #ifndef __ASM_SH_ATOMIC_H
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| 3 | #define __ASM_SH_ATOMIC_H
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| 4 |
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| 5 | #if defined(CONFIG_CPU_J2)
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| 6 |
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| 7 | #include <asm-generic/atomic.h>
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| 8 |
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| 9 | #else
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| 10 |
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| 11 | |
| 12 | * Atomic operations that C can't guarantee us. Useful for
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| 13 | * resource counting etc..
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| 14 | *
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| 15 |
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| 16 |
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| 17 | #include <linux/compiler.h>
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| 18 | #include <linux/types.h>
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| 19 | #include <asm/cmpxchg.h>
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| 20 | #include <asm/barrier.h>
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| 21 |
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| 22 | #define arch_atomic_read(v) READ_ONCE((v)->counter)
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| 23 | #define arch_atomic_set(v,i) WRITE_ONCE((v)->counter, (i))
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| 24 |
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| 25 | #if defined(CONFIG_GUSA_RB)
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| 26 | #include <asm/atomic-grb.h>
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| 27 | #elif defined(CONFIG_CPU_SH4A)
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| 28 | #include <asm/atomic-llsc.h>
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| 29 | #else
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| 30 | #include <asm/atomic-irq.h>
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| 31 | #endif
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| 32 |
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| 33 | #endif
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| 34 |
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| 35 | #endif
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