diff options
Diffstat (limited to 'erts/include/internal/ppc32/atomic.h')
| -rw-r--r-- | erts/include/internal/ppc32/atomic.h | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/erts/include/internal/ppc32/atomic.h b/erts/include/internal/ppc32/atomic.h index fa701c6a92..f21f7c9588 100644 --- a/erts/include/internal/ppc32/atomic.h +++ b/erts/include/internal/ppc32/atomic.h @@ -1,19 +1,19 @@ /* * %CopyrightBegin% - * - * Copyright Ericsson AB 2005-2009. All Rights Reserved. - * + * + * Copyright Ericsson AB 2005-2010. All Rights Reserved. + * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in * compliance with the License. You should have received a copy of the * Erlang Public License along with this software. If not, it can be * retrieved online at http://www.erlang.org/. - * + * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See * the License for the specific language governing rights and limitations * under the License. - * + * * %CopyrightEnd% */ @@ -32,8 +32,9 @@ typedef struct { volatile int counter; } ethr_native_atomic_t; +#define ETHR_MEMORY_BARRIER __asm__ __volatile__("sync" : : : "memory") -#ifdef ETHR_TRY_INLINE_FUNCS +#if defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_AUX_IMPL__) static ETHR_INLINE void ethr_native_atomic_init(ethr_native_atomic_t *var, int i) @@ -204,6 +205,26 @@ ethr_native_atomic_cmpxchg(ethr_native_atomic_t *var, int new, int expected) return old; } +/* + * Atomic ops with at least specified barriers. + */ + +static ETHR_INLINE long +ethr_native_atomic_read_acqb(ethr_native_atomic_t *var) +{ + long res = ethr_native_atomic_read(var); + ETHR_MEMORY_BARRIER; + return res; +} + +#define ethr_native_atomic_set_relb ethr_native_atomic_xchg +#define ethr_native_atomic_inc_return_acqb ethr_native_atomic_inc_return +#define ethr_native_atomic_dec_relb ethr_native_atomic_dec_return +#define ethr_native_atomic_dec_return_relb ethr_native_atomic_dec_return + +#define ethr_native_atomic_cmpxchg_acqb ethr_native_atomic_cmpxchg +#define ethr_native_atomic_cmpxchg_relb ethr_native_atomic_cmpxchg + #endif /* ETHR_TRY_INLINE_FUNCS */ #endif /* ETHREAD_PPC_ATOMIC_H */ |