atomic.h File Reference

#include <linux/types.h>
#include <asm/intrinsics.h>

Go to the source code of this file.

Macros
#define	ATOMIC_INIT(i)   { (i) }
#define	ATOMIC64_INIT(i)   { (i) }
#define	atomic_read(v)   (*(volatile int *)&(v)->counter)
#define	atomic64_read(v)   (*(volatile long *)&(v)->counter)
#define	atomic_set(v, i)   (((v)->counter) = (i))
#define	atomic64_set(v, i)   (((v)->counter) = (i))
#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(&((v)->counter), old, new))
#define	atomic64_xchg(v, new)   (xchg(&((v)->counter), new))
#define	atomic64_inc_not_zero(v)   atomic64_add_unless((v), 1, 0)
#define	atomic_add_return(i, v)
#define	atomic64_add_return(i, v)
#define	atomic_sub_return(i, v)
#define	atomic64_sub_return(i, v)
#define	atomic_dec_return(v)   atomic_sub_return(1, (v))
#define	atomic_inc_return(v)   atomic_add_return(1, (v))
#define	atomic64_dec_return(v)   atomic64_sub_return(1, (v))
#define	atomic64_inc_return(v)   atomic64_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_sub_and_test(i, v)   (atomic64_sub_return((i), (v)) == 0)
#define	atomic64_dec_and_test(v)   (atomic64_sub_return(1, (v)) == 0)
#define	atomic64_inc_and_test(v)   (atomic64_add_return(1, (v)) == 0)
#define	atomic_add(i, v)   atomic_add_return((i), (v))
#define	atomic_sub(i, v)   atomic_sub_return((i), (v))
#define	atomic_inc(v)   atomic_add(1, (v))
#define	atomic_dec(v)   atomic_sub(1, (v))
#define	atomic64_add(i, v)   atomic64_add_return((i), (v))
#define	atomic64_sub(i, v)   atomic64_sub_return((i), (v))
#define	atomic64_inc(v)   atomic64_add(1, (v))
#define	atomic64_dec(v)   atomic64_sub(1, (v))
#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()

Macro Definition Documentation

#define atomic64_add	(		i,
			v
	)		atomic64_add_return((i), (v))

Definition at line 206 of file atomic.h.

#define atomic64_add_return	(		i,
			v
	)

Value:

({                                  \
    long __ia64_aar_i = (i);                    \
    (__builtin_constant_p(i)                    \
     && (   (__ia64_aar_i ==  1) || (__ia64_aar_i ==   4)       \
         || (__ia64_aar_i ==  8) || (__ia64_aar_i ==  16)       \
         || (__ia64_aar_i == -1) || (__ia64_aar_i ==  -4)       \
         || (__ia64_aar_i == -8) || (__ia64_aar_i == -16)))     \
        ? ia64_fetch_and_add(__ia64_aar_i, &(v)->counter)   \
        : ia64_atomic64_add(__ia64_aar_i, v);           \
})

Definition at line 137 of file atomic.h.

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

Definition at line 88 of file atomic.h.

#define atomic64_dec

(

v

)

atomic64_sub(1, (v))

Definition at line 209 of file atomic.h.

#define atomic64_dec_and_test

(

v

)

(atomic64_sub_return(1, (v)) == 0)

Definition at line 198 of file atomic.h.

#define atomic64_dec_return

(

v

)

atomic64_sub_return(1, (v))

Definition at line 191 of file atomic.h.

#define atomic64_inc

(

v

)

atomic64_add(1, (v))

Definition at line 208 of file atomic.h.

#define atomic64_inc_and_test

(

v

)

(atomic64_add_return(1, (v)) == 0)

Definition at line 199 of file atomic.h.

#define atomic64_inc_not_zero

(

v

)

atomic64_add_unless((v), 1, 0)

Definition at line 123 of file atomic.h.

#define atomic64_inc_return

(

v

)

atomic64_add_return(1, (v))

Definition at line 192 of file atomic.h.

#define ATOMIC64_INIT

(

i

)

{ (i) }

Definition at line 21 of file atomic.h.

#define atomic64_read

(

v

)

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

Definition at line 24 of file atomic.h.

#define atomic64_set	(		v,
			i
	)		(((v)->counter) = (i))

Definition at line 27 of file atomic.h.

#define atomic64_sub	(		i,
			v
	)		atomic64_sub_return((i), (v))

Definition at line 207 of file atomic.h.

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

Definition at line 197 of file atomic.h.

#define atomic64_sub_return	(		i,
			v
	)

Value:

({                                  \
    long __ia64_asr_i = (i);                    \
    (__builtin_constant_p(i)                    \
     && (   (__ia64_asr_i ==   1) || (__ia64_asr_i ==   4)      \
         || (__ia64_asr_i ==   8) || (__ia64_asr_i ==  16)      \
         || (__ia64_asr_i ==  -1) || (__ia64_asr_i ==  -4)      \
         || (__ia64_asr_i ==  -8) || (__ia64_asr_i == -16)))    \
        ? ia64_fetch_and_add(-__ia64_asr_i, &(v)->counter)  \
        : ia64_atomic64_sub(__ia64_asr_i, v);           \
})

Definition at line 177 of file atomic.h.

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

Definition at line 90 of file atomic.h.

#define atomic_add	(		i,
			v
	)		atomic_add_return((i), (v))

Definition at line 201 of file atomic.h.

#define atomic_add_return	(		i,
			v
	)

Value:

({                                  \
    int __ia64_aar_i = (i);                     \
    (__builtin_constant_p(i)                    \
     && (   (__ia64_aar_i ==  1) || (__ia64_aar_i ==   4)       \
         || (__ia64_aar_i ==  8) || (__ia64_aar_i ==  16)       \
         || (__ia64_aar_i == -1) || (__ia64_aar_i ==  -4)       \
         || (__ia64_aar_i == -8) || (__ia64_aar_i == -16)))     \
        ? ia64_fetch_and_add(__ia64_aar_i, &(v)->counter)   \
        : ia64_atomic_add(__ia64_aar_i, v);         \
})

Definition at line 125 of file atomic.h.

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

Definition at line 85 of file atomic.h.

#define atomic_dec

(

v

)

atomic_sub(1, (v))

Definition at line 204 of file atomic.h.

#define atomic_dec_and_test

(

v

)

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

Definition at line 195 of file atomic.h.

#define atomic_dec_return

(

v

)

atomic_sub_return(1, (v))

Definition at line 189 of file atomic.h.

#define atomic_inc

(

v

)

atomic_add(1, (v))

Definition at line 203 of file atomic.h.

#define atomic_inc_and_test

(

v

)

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

Definition at line 196 of file atomic.h.

#define atomic_inc_return

(

v

)

atomic_add_return(1, (v))

Definition at line 190 of file atomic.h.

#define ATOMIC_INIT

(

i

)

{ (i) }

Definition at line 20 of file atomic.h.

#define atomic_read

(

v

)

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

Definition at line 23 of file atomic.h.

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

Definition at line 26 of file atomic.h.

#define atomic_sub	(		i,
			v
	)		atomic_sub_return((i), (v))

Definition at line 202 of file atomic.h.

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

Definition at line 194 of file atomic.h.

#define atomic_sub_return	(		i,
			v
	)

Value:

({                                  \
    int __ia64_asr_i = (i);                     \
    (__builtin_constant_p(i)                    \
     && (   (__ia64_asr_i ==   1) || (__ia64_asr_i ==   4)      \
         || (__ia64_asr_i ==   8) || (__ia64_asr_i ==  16)      \
         || (__ia64_asr_i ==  -1) || (__ia64_asr_i ==  -4)      \
         || (__ia64_asr_i ==  -8) || (__ia64_asr_i == -16)))    \
        ? ia64_fetch_and_add(-__ia64_asr_i, &(v)->counter)  \
        : ia64_atomic_sub(__ia64_asr_i, v);         \
})

Definition at line 165 of file atomic.h.

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

Definition at line 86 of file atomic.h.

#define smp_mb__after_atomic_dec

(

)

barrier()

Definition at line 213 of file atomic.h.

#define smp_mb__after_atomic_inc

(

)

barrier()

Definition at line 215 of file atomic.h.

#define smp_mb__before_atomic_dec

(

)

barrier()

Definition at line 212 of file atomic.h.

#define smp_mb__before_atomic_inc

(

)

barrier()

Definition at line 214 of file atomic.h.