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/* atomic.h: These really suck for now.

 *

 * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)

 */

#ifndef __ARCH_SPARC_ATOMIC__

#define __ARCH_SPARC_ATOMIC__

#ifdef __SMP__

#include <asm/smp.h>

#include <asm/smp_lock.h>

#endif

typedef int atomic_t;

static __inline__ void atomic_add(atomic_t i, atomic_t *v)

{

        unsigned long flags;

        save_flags(flags); cli();

        *v += i;

        restore_flags(flags);

}

static __inline__ void atomic_sub(atomic_t i, atomic_t *v)

{

        unsigned long flags;

        save_flags(flags); cli();

        *v -= i;

        restore_flags(flags);

}

static __inline__ int atomic_sub_and_test(atomic_t i, atomic_t *v)

{

        unsigned long flags, result;

        save_flags(flags); cli();

        *v -= i;

        result = (*v == 0);

        restore_flags(flags);

        return result;

}

static __inline__ void atomic_inc(atomic_t *v)

{

        atomic_add(1, v);

}

static __inline__ void atomic_dec(atomic_t *v)

{

        atomic_sub(1, v);

}

static __inline__ int atomic_dec_and_test(atomic_t *v)

{

        return atomic_sub_and_test(1, v);

}

#endif /* !(__ARCH_SPARC_ATOMIC__) */