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#ifndef __sparc64_ATOMIC_H__
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#ifndef __sparc64_ATOMIC_H__
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#define __sparc64_ATOMIC_H__
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#define __sparc64_ATOMIC_H__
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#include <arch/types.h>
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#include <arch/types.h>
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typedef struct { volatile __u64 count; } atomic_t;
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#include <typedefs.h>
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/** Atomic add operation.
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/** Atomic add operation.
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 *
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 *
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 * Use atomic compare and swap operation to atomically add signed value.
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 * Use atomic compare and swap operation to atomically add signed value.
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 *
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 *
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 * @param val Atomic variable.
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 * @param val Atomic variable.
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 * @param i Signed value to be added.
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 * @param i Signed value to be added.
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 *
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 *
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 * @return Value of the atomic variable as it existed before addition.
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 * @return Value of the atomic variable as it existed before addition.
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 */
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 */
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static inline count_t atomic_add(atomic_t *val, int i)
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static inline long atomic_add(atomic_t *val, int i)
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{
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{
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    __u64 a, b;
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    __u64 a, b;
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    volatile __u64 x = (__u64) &val->count;
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    volatile __u64 x = (__u64) &val->count;
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    __asm__ volatile (
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    __asm__ volatile (
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    );
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    );
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    return a;
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    return a;
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}
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}
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static inline count_t atomic_preinc(atomic_t *val)
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static inline long atomic_preinc(atomic_t *val)
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{
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{
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    return atomic_add(val, 1) + 1;
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    return atomic_add(val, 1) + 1;
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}
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}
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static inline count_t atomic_postinc(atomic_t *val)
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static inline long atomic_postinc(atomic_t *val)
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{
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{
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    return atomic_add(val, 1);
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    return atomic_add(val, 1);
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}
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}
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static inline count_t atomic_predec(atomic_t *val)
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static inline long atomic_predec(atomic_t *val)
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{
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{
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    return atomic_add(val, -1) - 1;
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    return atomic_add(val, -1) - 1;
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}
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}
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static inline count_t atomic_postdec(atomic_t *val)
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static inline long atomic_postdec(atomic_t *val)
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{
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{
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    return atomic_add(val, -1);
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    return atomic_add(val, -1);
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}
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}
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static inline void atomic_inc(atomic_t *val)
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static inline void atomic_inc(atomic_t *val)
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static inline void atomic_dec(atomic_t *val)
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static inline void atomic_dec(atomic_t *val)
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{
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{
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    (void) atomic_add(val, -1);
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    (void) atomic_add(val, -1);
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}
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}
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static inline void atomic_set(atomic_t *val, __u64 i)
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{
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    val->count = i;
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}
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static inline __u64 atomic_get(atomic_t *val)
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{
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    return val->count;
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}
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#endif
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#endif