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Diffstat (limited to 'sys/compat/opensolaris/sys/atomic.h')
-rw-r--r-- | sys/compat/opensolaris/sys/atomic.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/sys/compat/opensolaris/sys/atomic.h b/sys/compat/opensolaris/sys/atomic.h new file mode 100644 index 0000000..2559415 --- /dev/null +++ b/sys/compat/opensolaris/sys/atomic.h @@ -0,0 +1,114 @@ +/*- + * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org> + * All rights reserved. + * + * 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 AUTHORS 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 AUTHORS 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. + * + * $FreeBSD$ + */ + +#ifndef _OPENSOLARIS_SYS_ATOMIC_H_ +#define _OPENSOLARIS_SYS_ATOMIC_H_ + +#include <sys/types.h> +#include <machine/atomic.h> + +#ifndef __LP64__ +extern void atomic_add_64(volatile uint64_t *target, int64_t delta); +extern void *atomic_cas_ptr(volatile void *target, void *cmp, void *newval); +#endif +#ifndef __sparc64__ +extern uint64_t atomic_cas_64(volatile uint64_t *target, uint64_t cmp, + uint64_t newval); +#endif +extern uint64_t atomic_add_64_nv(volatile uint64_t *target, int64_t delta); +extern uint8_t atomic_or_8_nv(volatile uint8_t *target, uint8_t value); +extern void membar_producer(void); + +#if defined(__sparc64__) || defined(__powerpc__) || defined(__arm__) +extern void atomic_or_8(volatile uint8_t *target, uint8_t value); +#else +static __inline void +atomic_or_8(volatile uint8_t *target, uint8_t value) +{ + atomic_set_8(target, value); +} +#endif + +static __inline uint32_t +atomic_add_32_nv(volatile uint32_t *target, int32_t delta) +{ + return (atomic_fetchadd_32(target, delta) + delta); +} + +static __inline u_int +atomic_add_int_nv(volatile u_int *target, int delta) +{ + return (atomic_add_32_nv(target, delta)); +} + +static __inline void +atomic_dec_32(volatile uint32_t *target) +{ + atomic_subtract_32(target, 1); +} + +static __inline uint32_t +atomic_dec_32_nv(volatile uint32_t *target) +{ + return (atomic_fetchadd_32(target, -1) - 1); +} + +static __inline void +atomic_inc_32(volatile uint32_t *target) +{ + atomic_add_32(target, 1); +} + +static __inline uint32_t +atomic_inc_32_nv(volatile uint32_t *target) +{ + return (atomic_add_32_nv(target, 1)); +} + +static __inline void +atomic_inc_64(volatile uint64_t *target) +{ + atomic_add_64(target, 1); +} + +static __inline uint64_t +atomic_inc_64_nv(volatile uint64_t *target) +{ + return (atomic_add_64_nv(target, 1)); +} + +#ifdef __LP64__ +static __inline void * +atomic_cas_ptr(volatile void *target, void *cmp, void *newval) +{ + return ((void *)atomic_cas_64((uint64_t *)target, (uint64_t)cmp, + (uint64_t)newval)); +} +#endif + +#endif /* !_OPENSOLARIS_SYS_ATOMIC_H_ */ |