154 lines
5.6 KiB
C
154 lines
5.6 KiB
C
/* $NetBSD: atomic.h,v 1.11 2009/11/20 02:17:07 christos Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2007, 2008 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Jason R. Thorpe.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _SYS_ATOMIC_H_
|
|
#define _SYS_ATOMIC_H_
|
|
|
|
#include <sys/types.h>
|
|
#if !defined(_KERNEL) && !defined(_STANDALONE)
|
|
#include <stdint.h>
|
|
#endif
|
|
|
|
__BEGIN_DECLS
|
|
/*
|
|
* Atomic ADD
|
|
*/
|
|
void atomic_add_32(volatile uint32_t *, int32_t);
|
|
void atomic_add_int(volatile unsigned int *, int);
|
|
void atomic_add_long(volatile unsigned long *, long);
|
|
void atomic_add_ptr(volatile void *, ssize_t);
|
|
void atomic_add_64(volatile uint64_t *, int64_t);
|
|
|
|
uint32_t atomic_add_32_nv(volatile uint32_t *, int32_t);
|
|
unsigned int atomic_add_int_nv(volatile unsigned int *, int);
|
|
unsigned long atomic_add_long_nv(volatile unsigned long *, long);
|
|
void * atomic_add_ptr_nv(volatile void *, ssize_t);
|
|
uint64_t atomic_add_64_nv(volatile uint64_t *, int64_t);
|
|
|
|
/*
|
|
* Atomic AND
|
|
*/
|
|
void atomic_and_32(volatile uint32_t *, uint32_t);
|
|
void atomic_and_uint(volatile unsigned int *, unsigned int);
|
|
void atomic_and_ulong(volatile unsigned long *, unsigned long);
|
|
void atomic_and_64(volatile uint64_t *, uint64_t);
|
|
|
|
uint32_t atomic_and_32_nv(volatile uint32_t *, uint32_t);
|
|
unsigned int atomic_and_uint_nv(volatile unsigned int *, unsigned int);
|
|
unsigned long atomic_and_ulong_nv(volatile unsigned long *, unsigned long);
|
|
uint64_t atomic_and_64_nv(volatile uint64_t *, uint64_t);
|
|
|
|
/*
|
|
* Atomic OR
|
|
*/
|
|
void atomic_or_32(volatile uint32_t *, uint32_t);
|
|
void atomic_or_uint(volatile unsigned int *, unsigned int);
|
|
void atomic_or_ulong(volatile unsigned long *, unsigned long);
|
|
void atomic_or_64(volatile uint64_t *, uint64_t);
|
|
|
|
uint32_t atomic_or_32_nv(volatile uint32_t *, uint32_t);
|
|
unsigned int atomic_or_uint_nv(volatile unsigned int *, unsigned int);
|
|
unsigned long atomic_or_ulong_nv(volatile unsigned long *, unsigned long);
|
|
uint64_t atomic_or_64_nv(volatile uint64_t *, uint64_t);
|
|
|
|
/*
|
|
* Atomic COMPARE-AND-SWAP
|
|
*/
|
|
uint32_t atomic_cas_32(volatile uint32_t *, uint32_t, uint32_t);
|
|
unsigned int atomic_cas_uint(volatile unsigned int *, unsigned int,
|
|
unsigned int);
|
|
unsigned long atomic_cas_ulong(volatile unsigned long *, unsigned long,
|
|
unsigned long);
|
|
void * atomic_cas_ptr(volatile void *, void *, void *);
|
|
uint64_t atomic_cas_64(volatile uint64_t *, uint64_t, uint64_t);
|
|
|
|
/*
|
|
* Non-interlocked atomic COMPARE-AND-SWAP.
|
|
*/
|
|
uint32_t atomic_cas_32_ni(volatile uint32_t *, uint32_t, uint32_t);
|
|
unsigned int atomic_cas_uint_ni(volatile unsigned int *, unsigned int,
|
|
unsigned int);
|
|
unsigned long atomic_cas_ulong_ni(volatile unsigned long *, unsigned long,
|
|
unsigned long);
|
|
void * atomic_cas_ptr_ni(volatile void *, void *, void *);
|
|
uint64_t atomic_cas_64_ni(volatile uint64_t *, uint64_t, uint64_t);
|
|
|
|
/*
|
|
* Atomic SWAP
|
|
*/
|
|
uint32_t atomic_swap_32(volatile uint32_t *, uint32_t);
|
|
unsigned int atomic_swap_uint(volatile unsigned int *, unsigned int);
|
|
unsigned long atomic_swap_ulong(volatile unsigned long *, unsigned long);
|
|
void * atomic_swap_ptr(volatile void *, void *);
|
|
uint64_t atomic_swap_64(volatile uint64_t *, uint64_t);
|
|
|
|
/*
|
|
* Atomic DECREMENT
|
|
*/
|
|
void atomic_dec_32(volatile uint32_t *);
|
|
void atomic_dec_uint(volatile unsigned int *);
|
|
void atomic_dec_ulong(volatile unsigned long *);
|
|
void atomic_dec_ptr(volatile void *);
|
|
void atomic_dec_64(volatile uint64_t *);
|
|
|
|
uint32_t atomic_dec_32_nv(volatile uint32_t *);
|
|
unsigned int atomic_dec_uint_nv(volatile unsigned int *);
|
|
unsigned long atomic_dec_ulong_nv(volatile unsigned long *);
|
|
void * atomic_dec_ptr_nv(volatile void *);
|
|
uint64_t atomic_dec_64_nv(volatile uint64_t *);
|
|
|
|
/*
|
|
* Atomic INCREMENT
|
|
*/
|
|
void atomic_inc_32(volatile uint32_t *);
|
|
void atomic_inc_uint(volatile unsigned int *);
|
|
void atomic_inc_ulong(volatile unsigned long *);
|
|
void atomic_inc_ptr(volatile void *);
|
|
void atomic_inc_64(volatile uint64_t *);
|
|
|
|
uint32_t atomic_inc_32_nv(volatile uint32_t *);
|
|
unsigned int atomic_inc_uint_nv(volatile unsigned int *);
|
|
unsigned long atomic_inc_ulong_nv(volatile unsigned long *);
|
|
void * atomic_inc_ptr_nv(volatile void *);
|
|
uint64_t atomic_inc_64_nv(volatile uint64_t *);
|
|
|
|
/*
|
|
* Memory barrier operations
|
|
*/
|
|
void membar_enter(void);
|
|
void membar_exit(void);
|
|
void membar_producer(void);
|
|
void membar_consumer(void);
|
|
void membar_sync(void);
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* ! _SYS_ATOMIC_H_ */
|