atomic.h File Reference

#include <linux/types.h>
#include <asm/spr-regs.h>
#include <asm/cmpxchg.h>

Go to the source code of this file.

Data Structures
struct	atomic64_t

Macros
#define	smp_mb__before_atomic_dec()   barrier()
#define	smp_mb__after_atomic_dec()   barrier()
#define	smp_mb__before_atomic_inc()   barrier()
#define	smp_mb__after_atomic_inc()   barrier()
#define	ATOMIC_INIT(i)   { (i) }
#define	atomic_read(v)   (*(volatile int *)&(v)->counter)
#define	atomic_set(v, i)   (((v)->counter) = (i))
#define	atomic_dec_return(v)   atomic_sub_return(1, (v))
#define	atomic_inc_return(v)   atomic_add_return(1, (v))
#define	atomic_sub_and_test(i, v)   (atomic_sub_return((i), (v)) == 0)
#define	atomic_dec_and_test(v)   (atomic_sub_return(1, (v)) == 0)
#define	atomic_inc_and_test(v)   (atomic_add_return(1, (v)) == 0)
#define	ATOMIC64_INIT(i)   { (i) }
#define	atomic64_sub_and_test(i, v)   (atomic64_sub_return((i), (v)) == 0)
#define	atomic64_dec_and_test(v)   (atomic64_dec_return((v)) == 0)
#define	atomic64_inc_and_test(v)   (atomic64_inc_return((v)) == 0)
#define	atomic_cmpxchg(v, old, new)   (cmpxchg(&(v)->counter, old, new))
#define	atomic_xchg(v, new)   (xchg(&(v)->counter, new))
#define	atomic64_cmpxchg(v, old, new)   (__cmpxchg_64(old, new, &(v)->counter))
#define	atomic64_xchg(v, new)   (__xchg_64(new, &(v)->counter))

Functions
long long	atomic64_inc_return (atomic64_t *v)
long long	atomic64_dec_return (atomic64_t *v)
long long	atomic64_add_return (long long i, atomic64_t *v)
long long	atomic64_sub_return (long long i, atomic64_t *v)

Macro Definition Documentation

#define atomic64_cmpxchg	(		v,
			old,
			new
	)		(__cmpxchg_64(old, new, &(v)->counter))

Definition at line 186 of file atomic.h.

#define atomic64_dec_and_test

(

v

)

(atomic64_dec_return((v)) == 0)

Definition at line 181 of file atomic.h.

#define atomic64_inc_and_test

(

v

)

(atomic64_inc_return((v)) == 0)

Definition at line 182 of file atomic.h.

#define ATOMIC64_INIT

(

i

)

{ (i) }

Definition at line 131 of file atomic.h.

#define atomic64_sub_and_test	(		i,
			v
	)		(atomic64_sub_return((i), (v)) == 0)

Definition at line 180 of file atomic.h.

#define atomic64_xchg	(		v,
			new
	)		(__xchg_64(new, &(v)->counter))

Definition at line 187 of file atomic.h.

#define atomic_cmpxchg	(		v,
			old,
			new
	)		(cmpxchg(&(v)->counter, old, new))

Definition at line 184 of file atomic.h.

#define atomic_dec_and_test

(

v

)

(atomic_sub_return(1, (v)) == 0)

Definition at line 121 of file atomic.h.

#define atomic_dec_return

(

v

)

atomic_sub_return(1, (v))

Definition at line 117 of file atomic.h.

#define atomic_inc_and_test

(

v

)

(atomic_add_return(1, (v)) == 0)

Definition at line 122 of file atomic.h.

#define atomic_inc_return

(

v

)

atomic_add_return(1, (v))

Definition at line 118 of file atomic.h.

#define ATOMIC_INIT

(

i

)

{ (i) }

Definition at line 38 of file atomic.h.

#define atomic_read

(

v

)

(*(volatile int *)&(v)->counter)

Definition at line 39 of file atomic.h.

#define atomic_set	(		v,
			i
	)		(((v)->counter) = (i))

Definition at line 40 of file atomic.h.

#define atomic_sub_and_test	(		i,
			v
	)		(atomic_sub_return((i), (v)) == 0)

Definition at line 120 of file atomic.h.

#define atomic_xchg	(		v,
			new
	)		(xchg(&(v)->counter, new))

Definition at line 185 of file atomic.h.

#define smp_mb__after_atomic_dec

(

)

barrier()

Definition at line 34 of file atomic.h.

#define smp_mb__after_atomic_inc

(

)

barrier()

Definition at line 36 of file atomic.h.

#define smp_mb__before_atomic_dec

(

)

barrier()

Definition at line 33 of file atomic.h.

#define smp_mb__before_atomic_inc

(

)

barrier()

Definition at line 35 of file atomic.h.

Function Documentation

long long atomic64_add_return	(	long long	i,
		atomic64_t *	v
	)

Definition at line 80 of file atomic64.c.

long long atomic64_dec_return

(

atomic64_t *

v

)

long long atomic64_inc_return

(

atomic64_t *

v

)

long long atomic64_sub_return	(	long long	i,
		atomic64_t *	v
	)

Definition at line 104 of file atomic64.c.