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247 lines
6.9 KiB
247 lines
6.9 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#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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#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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#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) \ |
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static inline long atomic_long_read##mo(const 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(_read##mo)(v); \ |
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} |
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ATOMIC_LONG_READ_OP() |
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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) \ |
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static inline void atomic_long_set##mo(atomic_long_t *l, long i) \ |
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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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ATOMIC_LONG_PFX(_set##mo)(v, i); \ |
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} |
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ATOMIC_LONG_SET_OP() |
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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) \ |
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static inline long \ |
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atomic_long_##op##_return##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(_##op##_return##mo)(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, _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, _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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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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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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#define ATOMIC_LONG_OP(op) \ |
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static __always_inline void \ |
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atomic_long_##op(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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ATOMIC_LONG_PFX(_##op)(i, v); \ |
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} |
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ATOMIC_LONG_OP(add) |
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ATOMIC_LONG_OP(sub) |
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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) \ |
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static inline long \ |
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atomic_long_##op##_return##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(_##op##_return##mo)(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, _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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#endif /* _ASM_GENERIC_ATOMIC_LONG_H */
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