6832ce6374
__ARM_ARCH to determine which revision of the architecture is applicable. Sponsored by: ABT Systems Ltd
142 lines
4.0 KiB
C
142 lines
4.0 KiB
C
/* $NetBSD: atomic.h,v 1.1 2002/10/19 12:22:34 bsh Exp $ */
|
|
|
|
/*-
|
|
* Copyright (C) 2003-2004 Olivier Houchard
|
|
* Copyright (C) 1994-1997 Mark Brinicombe
|
|
* Copyright (C) 1994 Brini
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software written for Brini by Mark Brinicombe
|
|
*
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Brini.
|
|
* 4. The name of Brini may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY BRINI ``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 BRINI 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_ATOMIC_H_
|
|
#define _MACHINE_ATOMIC_H_
|
|
|
|
#include <sys/types.h>
|
|
#include <machine/armreg.h>
|
|
|
|
#include <machine/acle-compat.h>
|
|
|
|
#ifndef _KERNEL
|
|
#include <machine/sysarch.h>
|
|
#else
|
|
#include <machine/cpuconf.h>
|
|
#endif
|
|
|
|
#if __ARM_ARCH >= 6
|
|
#include <machine/atomic-v6.h>
|
|
#else /* < armv6 */
|
|
#include <machine/atomic-v4.h>
|
|
#endif /* Arch >= v6 */
|
|
|
|
static __inline int
|
|
atomic_load_32(volatile uint32_t *v)
|
|
{
|
|
|
|
return (*v);
|
|
}
|
|
|
|
static __inline void
|
|
atomic_store_32(volatile uint32_t *dst, uint32_t src)
|
|
{
|
|
*dst = src;
|
|
}
|
|
|
|
static __inline int
|
|
atomic_load_long(volatile u_long *v)
|
|
{
|
|
|
|
return (*v);
|
|
}
|
|
|
|
static __inline void
|
|
atomic_store_long(volatile u_long *dst, u_long src)
|
|
{
|
|
*dst = src;
|
|
}
|
|
|
|
static __inline void
|
|
atomic_thread_fence_acq(void)
|
|
{
|
|
|
|
dmb();
|
|
}
|
|
|
|
static __inline void
|
|
atomic_thread_fence_rel(void)
|
|
{
|
|
|
|
dmb();
|
|
}
|
|
|
|
static __inline void
|
|
atomic_thread_fence_acq_rel(void)
|
|
{
|
|
|
|
dmb();
|
|
}
|
|
|
|
static __inline void
|
|
atomic_thread_fence_seq_cst(void)
|
|
{
|
|
|
|
dmb();
|
|
}
|
|
|
|
#define atomic_clear_ptr atomic_clear_32
|
|
#define atomic_set_ptr atomic_set_32
|
|
#define atomic_cmpset_ptr atomic_cmpset_32
|
|
#define atomic_cmpset_rel_ptr atomic_cmpset_rel_32
|
|
#define atomic_cmpset_acq_ptr atomic_cmpset_acq_32
|
|
#define atomic_store_ptr atomic_store_32
|
|
#define atomic_store_rel_ptr atomic_store_rel_32
|
|
|
|
#define atomic_add_int atomic_add_32
|
|
#define atomic_add_acq_int atomic_add_acq_32
|
|
#define atomic_add_rel_int atomic_add_rel_32
|
|
#define atomic_subtract_int atomic_subtract_32
|
|
#define atomic_subtract_acq_int atomic_subtract_acq_32
|
|
#define atomic_subtract_rel_int atomic_subtract_rel_32
|
|
#define atomic_clear_int atomic_clear_32
|
|
#define atomic_clear_acq_int atomic_clear_acq_32
|
|
#define atomic_clear_rel_int atomic_clear_rel_32
|
|
#define atomic_set_int atomic_set_32
|
|
#define atomic_set_acq_int atomic_set_acq_32
|
|
#define atomic_set_rel_int atomic_set_rel_32
|
|
#define atomic_cmpset_int atomic_cmpset_32
|
|
#define atomic_cmpset_acq_int atomic_cmpset_acq_32
|
|
#define atomic_cmpset_rel_int atomic_cmpset_rel_32
|
|
#define atomic_fetchadd_int atomic_fetchadd_32
|
|
#define atomic_readandclear_int atomic_readandclear_32
|
|
#define atomic_load_acq_int atomic_load_acq_32
|
|
#define atomic_store_rel_int atomic_store_rel_32
|
|
|
|
#endif /* _MACHINE_ATOMIC_H_ */
|