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347 lines
11 KiB
C
347 lines
11 KiB
C
#ifndef _ASM_GENERIC_ATOMIC_LONG_H
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#define _ASM_GENERIC_ATOMIC_LONG_H
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/*
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* Copyright (C) 2005 Silicon Graphics, Inc.
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* Christoph Lameter
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*
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* Allows to provide arch independent atomic definitions without the need to
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* edit all arch specific atomic.h files.
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*/
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#include <asm/types.h>
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/*
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* Suppport for atomic_long_t
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*
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* Casts for parameters are avoided for existing atomic functions in order to
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* avoid issues with cast-as-lval under gcc 4.x and other limitations that the
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* macros of a platform may have.
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*/
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#if BITS_PER_LONG == 64
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typedef atomic64_t atomic_long_t;
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#ifdef CONFIG_PAX_REFCOUNT
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typedef atomic64_unchecked_t atomic_long_unchecked_t;
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#else
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typedef atomic64_t atomic_long_unchecked_t;
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#endif
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#define ATOMIC_LONG_INIT(i) ATOMIC64_INIT(i)
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#define ATOMIC_LONG_PFX(x) atomic64 ## x
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#else
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typedef atomic_t atomic_long_t;
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#ifdef CONFIG_PAX_REFCOUNT
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typedef atomic_unchecked_t atomic_long_unchecked_t;
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#else
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typedef atomic_t atomic_long_unchecked_t;
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#endif
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#define ATOMIC_LONG_INIT(i) ATOMIC_INIT(i)
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#define ATOMIC_LONG_PFX(x) atomic ## x
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#endif
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#define ATOMIC_LONG_READ_OP(mo, suffix) \
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static inline long atomic_long_read##mo##suffix(const atomic_long##suffix##_t *l)\
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{ \
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ATOMIC_LONG_PFX(suffix##_t) *v = (ATOMIC_LONG_PFX(suffix##_t) *)l;\
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\
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return (long)ATOMIC_LONG_PFX(_read##mo##suffix)(v); \
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}
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ATOMIC_LONG_READ_OP(,)
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ATOMIC_LONG_READ_OP(,_unchecked)
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ATOMIC_LONG_READ_OP(_acquire,)
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#undef ATOMIC_LONG_READ_OP
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#define ATOMIC_LONG_SET_OP(mo, suffix) \
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static inline void atomic_long_set##mo##suffix(atomic_long##suffix##_t *l, long i)\
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{ \
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ATOMIC_LONG_PFX(suffix##_t) *v = (ATOMIC_LONG_PFX(suffix##_t) *)l;\
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\
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ATOMIC_LONG_PFX(_set##mo##suffix)(v, i); \
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}
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ATOMIC_LONG_SET_OP(,)
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ATOMIC_LONG_SET_OP(,_unchecked)
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ATOMIC_LONG_SET_OP(_release,)
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#undef ATOMIC_LONG_SET_OP
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#define ATOMIC_LONG_ADD_SUB_OP(op, mo, suffix) \
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static inline long \
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atomic_long_##op##_return##mo##suffix(long i, atomic_long##suffix##_t *l)\
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{ \
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ATOMIC_LONG_PFX(suffix##_t) *v = (ATOMIC_LONG_PFX(suffix##_t) *)l;\
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\
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return (long)ATOMIC_LONG_PFX(_##op##_return##mo##suffix)(i, v); \
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}
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ATOMIC_LONG_ADD_SUB_OP(add,,)
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ATOMIC_LONG_ADD_SUB_OP(add,,_unchecked)
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ATOMIC_LONG_ADD_SUB_OP(add, _relaxed,)
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ATOMIC_LONG_ADD_SUB_OP(add, _acquire,)
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ATOMIC_LONG_ADD_SUB_OP(add, _release,)
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ATOMIC_LONG_ADD_SUB_OP(sub,,)
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//ATOMIC_LONG_ADD_SUB_OP(sub,,_unchecked)
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ATOMIC_LONG_ADD_SUB_OP(sub, _relaxed,)
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ATOMIC_LONG_ADD_SUB_OP(sub, _acquire,)
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ATOMIC_LONG_ADD_SUB_OP(sub, _release,)
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#undef ATOMIC_LONG_ADD_SUB_OP
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#define atomic_long_cmpxchg_relaxed(l, old, new) \
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(ATOMIC_LONG_PFX(_cmpxchg_relaxed)((ATOMIC_LONG_PFX(_t) *)(l), \
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(old), (new)))
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#define atomic_long_cmpxchg_acquire(l, old, new) \
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(ATOMIC_LONG_PFX(_cmpxchg_acquire)((ATOMIC_LONG_PFX(_t) *)(l), \
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(old), (new)))
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#define atomic_long_cmpxchg_release(l, old, new) \
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(ATOMIC_LONG_PFX(_cmpxchg_release)((ATOMIC_LONG_PFX(_t) *)(l), \
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(old), (new)))
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#define atomic_long_cmpxchg(l, old, new) \
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(ATOMIC_LONG_PFX(_cmpxchg)((ATOMIC_LONG_PFX(_t) *)(l), (old), (new)))
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#define atomic_long_xchg_relaxed(v, new) \
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(ATOMIC_LONG_PFX(_xchg_relaxed)((ATOMIC_LONG_PFX(_t) *)(v), (new)))
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#define atomic_long_xchg_acquire(v, new) \
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(ATOMIC_LONG_PFX(_xchg_acquire)((ATOMIC_LONG_PFX(_t) *)(v), (new)))
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#define atomic_long_xchg_release(v, new) \
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(ATOMIC_LONG_PFX(_xchg_release)((ATOMIC_LONG_PFX(_t) *)(v), (new)))
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#define atomic_long_xchg(v, new) \
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(ATOMIC_LONG_PFX(_xchg)((ATOMIC_LONG_PFX(_t) *)(v), (new)))
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#ifdef CONFIG_PAX_REFCOUNT
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#define atomic_long_xchg_unchecked(v, new) \
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(ATOMIC_LONG_PFX(_xchg_unchecked)((ATOMIC_LONG_PFX(_unchecked_t) *)(v), (new)))
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#endif
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static __always_inline void atomic_long_inc(atomic_long_t *l)
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{
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ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
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ATOMIC_LONG_PFX(_inc)(v);
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}
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#ifdef CONFIG_PAX_REFCOUNT
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static __always_inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l)
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{
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ATOMIC_LONG_PFX(_unchecked_t) *v = (ATOMIC_LONG_PFX(_unchecked_t) *)l;
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ATOMIC_LONG_PFX(_inc_unchecked)(v);
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}
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#endif
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static __always_inline void atomic_long_dec(atomic_long_t *l)
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{
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ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
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ATOMIC_LONG_PFX(_dec)(v);
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}
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#define ATOMIC_LONG_FETCH_OP(op, mo) \
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static inline long \
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atomic_long_fetch_##op##mo(long i, atomic_long_t *l) \
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{ \
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ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l; \
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\
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return (long)ATOMIC_LONG_PFX(_fetch_##op##mo)(i, v); \
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}
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ATOMIC_LONG_FETCH_OP(add, )
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ATOMIC_LONG_FETCH_OP(add, _relaxed)
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ATOMIC_LONG_FETCH_OP(add, _acquire)
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ATOMIC_LONG_FETCH_OP(add, _release)
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ATOMIC_LONG_FETCH_OP(sub, )
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ATOMIC_LONG_FETCH_OP(sub, _relaxed)
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ATOMIC_LONG_FETCH_OP(sub, _acquire)
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ATOMIC_LONG_FETCH_OP(sub, _release)
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ATOMIC_LONG_FETCH_OP(and, )
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ATOMIC_LONG_FETCH_OP(and, _relaxed)
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ATOMIC_LONG_FETCH_OP(and, _acquire)
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ATOMIC_LONG_FETCH_OP(and, _release)
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ATOMIC_LONG_FETCH_OP(andnot, )
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ATOMIC_LONG_FETCH_OP(andnot, _relaxed)
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ATOMIC_LONG_FETCH_OP(andnot, _acquire)
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ATOMIC_LONG_FETCH_OP(andnot, _release)
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ATOMIC_LONG_FETCH_OP(or, )
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ATOMIC_LONG_FETCH_OP(or, _relaxed)
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ATOMIC_LONG_FETCH_OP(or, _acquire)
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ATOMIC_LONG_FETCH_OP(or, _release)
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ATOMIC_LONG_FETCH_OP(xor, )
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ATOMIC_LONG_FETCH_OP(xor, _relaxed)
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ATOMIC_LONG_FETCH_OP(xor, _acquire)
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ATOMIC_LONG_FETCH_OP(xor, _release)
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#undef ATOMIC_LONG_FETCH_OP
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#define ATOMIC_LONG_FETCH_INC_DEC_OP(op, mo) \
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static inline long \
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atomic_long_fetch_##op##mo(atomic_long_t *l) \
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{ \
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ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l; \
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\
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return (long)ATOMIC_LONG_PFX(_fetch_##op##mo)(v); \
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}
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ATOMIC_LONG_FETCH_INC_DEC_OP(inc,)
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ATOMIC_LONG_FETCH_INC_DEC_OP(inc, _relaxed)
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ATOMIC_LONG_FETCH_INC_DEC_OP(inc, _acquire)
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ATOMIC_LONG_FETCH_INC_DEC_OP(inc, _release)
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ATOMIC_LONG_FETCH_INC_DEC_OP(dec,)
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ATOMIC_LONG_FETCH_INC_DEC_OP(dec, _relaxed)
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ATOMIC_LONG_FETCH_INC_DEC_OP(dec, _acquire)
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ATOMIC_LONG_FETCH_INC_DEC_OP(dec, _release)
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#undef ATOMIC_LONG_FETCH_INC_DEC_OP
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#ifdef CONFIG_PAX_REFCOUNT
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static __always_inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l)
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{
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ATOMIC_LONG_PFX(_unchecked_t) *v = (ATOMIC_LONG_PFX(_unchecked_t) *)l;
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ATOMIC_LONG_PFX(_dec_unchecked)(v);
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}
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#endif
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#define ATOMIC_LONG_OP(op, suffix) \
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static __always_inline void \
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atomic_long_##op##suffix(long i, atomic_long##suffix##_t *l) \
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{ \
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ATOMIC_LONG_PFX(suffix##_t) *v = (ATOMIC_LONG_PFX(suffix##_t) *)l;\
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\
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ATOMIC_LONG_PFX(_##op##suffix)(i, v); \
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}
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ATOMIC_LONG_OP(add,)
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ATOMIC_LONG_OP(add,_unchecked)
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ATOMIC_LONG_OP(sub,)
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ATOMIC_LONG_OP(sub,_unchecked)
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ATOMIC_LONG_OP(and,)
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ATOMIC_LONG_OP(andnot,)
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ATOMIC_LONG_OP(or,)
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ATOMIC_LONG_OP(xor,)
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#undef ATOMIC_LONG_OP
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static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
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{
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ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
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return ATOMIC_LONG_PFX(_sub_and_test)(i, v);
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}
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static inline int atomic_long_dec_and_test(atomic_long_t *l)
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{
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ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
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return ATOMIC_LONG_PFX(_dec_and_test)(v);
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}
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static inline int atomic_long_inc_and_test(atomic_long_t *l)
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{
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ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
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return ATOMIC_LONG_PFX(_inc_and_test)(v);
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}
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static inline int atomic_long_add_negative(long i, atomic_long_t *l)
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{
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ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
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return ATOMIC_LONG_PFX(_add_negative)(i, v);
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}
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#define ATOMIC_LONG_INC_DEC_OP(op, mo, suffix) \
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static inline long \
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atomic_long_##op##_return##mo##suffix(atomic_long##suffix##_t *l) \
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{ \
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ATOMIC_LONG_PFX(suffix##_t) *v = (ATOMIC_LONG_PFX(suffix##_t) *)l;\
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\
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return (long)ATOMIC_LONG_PFX(_##op##_return##mo##suffix)(v); \
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}
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ATOMIC_LONG_INC_DEC_OP(inc,,)
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ATOMIC_LONG_INC_DEC_OP(inc,,_unchecked)
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ATOMIC_LONG_INC_DEC_OP(inc, _relaxed,)
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ATOMIC_LONG_INC_DEC_OP(inc, _acquire,)
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ATOMIC_LONG_INC_DEC_OP(inc, _release,)
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ATOMIC_LONG_INC_DEC_OP(dec,,)
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ATOMIC_LONG_INC_DEC_OP(dec, _relaxed,)
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ATOMIC_LONG_INC_DEC_OP(dec, _acquire,)
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ATOMIC_LONG_INC_DEC_OP(dec, _release,)
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#undef ATOMIC_LONG_INC_DEC_OP
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static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
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{
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ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
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return (long)ATOMIC_LONG_PFX(_add_unless)(v, a, u);
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}
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#define atomic_long_inc_not_zero(l) \
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ATOMIC_LONG_PFX(_inc_not_zero)((ATOMIC_LONG_PFX(_t) *)(l))
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#ifdef CONFIG_PAX_REFCOUNT
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static inline void pax_refcount_needs_these_functions(void)
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{
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atomic_read_unchecked((atomic_unchecked_t *)NULL);
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atomic_set_unchecked((atomic_unchecked_t *)NULL, 0);
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atomic_add_unchecked(0, (atomic_unchecked_t *)NULL);
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atomic_sub_unchecked(0, (atomic_unchecked_t *)NULL);
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atomic_inc_unchecked((atomic_unchecked_t *)NULL);
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(void)atomic_inc_and_test_unchecked((atomic_unchecked_t *)NULL);
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atomic_inc_return_unchecked((atomic_unchecked_t *)NULL);
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atomic_add_return_unchecked(0, (atomic_unchecked_t *)NULL);
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atomic_dec_unchecked((atomic_unchecked_t *)NULL);
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atomic_cmpxchg_unchecked((atomic_unchecked_t *)NULL, 0, 0);
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(void)atomic_xchg_unchecked((atomic_unchecked_t *)NULL, 0);
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atomic_long_read_unchecked((atomic_long_unchecked_t *)NULL);
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atomic_long_set_unchecked((atomic_long_unchecked_t *)NULL, 0);
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atomic_long_add_unchecked(0, (atomic_long_unchecked_t *)NULL);
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atomic_long_sub_unchecked(0, (atomic_long_unchecked_t *)NULL);
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atomic_long_inc_unchecked((atomic_long_unchecked_t *)NULL);
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atomic_long_add_return_unchecked(0, (atomic_long_unchecked_t *)NULL);
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atomic_long_inc_return_unchecked((atomic_long_unchecked_t *)NULL);
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atomic_long_dec_unchecked((atomic_long_unchecked_t *)NULL);
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}
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#else
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#define atomic_read_unchecked(v) atomic_read(v)
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#define atomic_set_unchecked(v, i) atomic_set((v), (i))
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#define atomic_add_unchecked(i, v) atomic_add((i), (v))
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#define atomic_sub_unchecked(i, v) atomic_sub((i), (v))
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#define atomic_inc_unchecked(v) atomic_inc(v)
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#ifndef atomic_inc_and_test_unchecked
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#define atomic_inc_and_test_unchecked(v) atomic_inc_and_test(v)
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#endif
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#ifndef atomic_inc_return_unchecked
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#define atomic_inc_return_unchecked(v) atomic_inc_return(v)
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#endif
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#ifndef atomic_add_return_unchecked
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#define atomic_add_return_unchecked(i, v) atomic_add_return((i), (v))
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#endif
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#define atomic_dec_unchecked(v) atomic_dec(v)
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#define atomic_cmpxchg_unchecked(v, o, n) atomic_cmpxchg((v), (o), (n))
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#ifndef atomic_xchg_unchecked
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#define atomic_xchg_unchecked(v, i) atomic_xchg((v), (i))
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#endif
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#define atomic_long_read_unchecked(v) atomic_long_read(v)
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#define atomic_long_set_unchecked(v, i) atomic_long_set((v), (i))
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#define atomic_long_add_unchecked(i, v) atomic_long_add((i), (v))
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#define atomic_long_sub_unchecked(i, v) atomic_long_sub((i), (v))
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#define atomic_long_inc_unchecked(v) atomic_long_inc(v)
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#define atomic_long_add_return_unchecked(i, v) atomic_long_add_return((i), (v))
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#define atomic_long_inc_return_unchecked(v) atomic_long_inc_return(v)
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#define atomic_long_dec_unchecked(v) atomic_long_dec(v)
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#ifndef atomic_long_xchg_unchecked
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#define atomic_long_xchg_unchecked(v, i) atomic_long_xchg((v), (i))
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#endif
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#endif
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#endif /* _ASM_GENERIC_ATOMIC_LONG_H */
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