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/* Copyright (c) 2013, Linaro Limited
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/**
* @file
*
* ODP atomic operations
*/
#ifndef ODP_PLAT_ATOMIC_H_
#define ODP_PLAT_ATOMIC_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include <odp/align.h>
#include <odp/plat/atomic_types.h>
/** @ingroup odp_synchronizers
* @{
*/
static inline void odp_atomic_init_u32(odp_atomic_u32_t *atom, uint32_t val)
{
__atomic_store_n(&atom->v, val, __ATOMIC_RELAXED);
}
static inline uint32_t odp_atomic_load_u32(odp_atomic_u32_t *atom)
{
return __atomic_load_n(&atom->v, __ATOMIC_RELAXED);
}
static inline void odp_atomic_store_u32(odp_atomic_u32_t *atom,
uint32_t val)
{
__atomic_store_n(&atom->v, val, __ATOMIC_RELAXED);
}
static inline uint32_t odp_atomic_fetch_add_u32(odp_atomic_u32_t *atom,
uint32_t val)
{
return __atomic_fetch_add(&atom->v, val, __ATOMIC_RELAXED);
}
static inline void odp_atomic_add_u32(odp_atomic_u32_t *atom,
uint32_t val)
{
(void)__atomic_fetch_add(&atom->v, val, __ATOMIC_RELAXED);
}
static inline uint32_t odp_atomic_fetch_sub_u32(odp_atomic_u32_t *atom,
uint32_t val)
{
return __atomic_fetch_sub(&atom->v, val, __ATOMIC_RELAXED);
}
static inline void odp_atomic_sub_u32(odp_atomic_u32_t *atom,
uint32_t val)
{
(void)__atomic_fetch_sub(&atom->v, val, __ATOMIC_RELAXED);
}
static inline uint32_t odp_atomic_fetch_inc_u32(odp_atomic_u32_t *atom)
{
return __atomic_fetch_add(&atom->v, 1, __ATOMIC_RELAXED);
}
static inline void odp_atomic_inc_u32(odp_atomic_u32_t *atom)
{
(void)__atomic_fetch_add(&atom->v, 1, __ATOMIC_RELAXED);
}
static inline uint32_t odp_atomic_fetch_dec_u32(odp_atomic_u32_t *atom)
{
return __atomic_fetch_sub(&atom->v, 1, __ATOMIC_RELAXED);
}
static inline void odp_atomic_dec_u32(odp_atomic_u32_t *atom)
{
(void)__atomic_fetch_sub(&atom->v, 1, __ATOMIC_RELAXED);
}
static inline void odp_atomic_init_u64(odp_atomic_u64_t *atom, uint64_t val)
{
atom->v = val;
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
__atomic_clear(&atom->lock, __ATOMIC_RELAXED);
#endif
}
static inline uint64_t odp_atomic_load_u64(odp_atomic_u64_t *atom)
{
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
return ATOMIC_OP(atom, (void)0);
#else
return __atomic_load_n(&atom->v, __ATOMIC_RELAXED);
#endif
}
static inline void odp_atomic_store_u64(odp_atomic_u64_t *atom,
uint64_t val)
{
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
(void)ATOMIC_OP(atom, atom->v = val);
#else
__atomic_store_n(&atom->v, val, __ATOMIC_RELAXED);
#endif
}
static inline uint64_t odp_atomic_fetch_add_u64(odp_atomic_u64_t *atom,
uint64_t val)
{
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
return ATOMIC_OP(atom, atom->v += val);
#else
return __atomic_fetch_add(&atom->v, val, __ATOMIC_RELAXED);
#endif
}
static inline void odp_atomic_add_u64(odp_atomic_u64_t *atom, uint64_t val)
{
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
(void)ATOMIC_OP(atom, atom->v += val);
#else
(void)__atomic_fetch_add(&atom->v, val, __ATOMIC_RELAXED);
#endif
}
static inline uint64_t odp_atomic_fetch_sub_u64(odp_atomic_u64_t *atom,
uint64_t val)
{
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
return ATOMIC_OP(atom, atom->v -= val);
#else
return __atomic_fetch_sub(&atom->v, val, __ATOMIC_RELAXED);
#endif
}
static inline void odp_atomic_sub_u64(odp_atomic_u64_t *atom, uint64_t val)
{
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
(void)ATOMIC_OP(atom, atom->v -= val);
#else
(void)__atomic_fetch_sub(&atom->v, val, __ATOMIC_RELAXED);
#endif
}
static inline uint64_t odp_atomic_fetch_inc_u64(odp_atomic_u64_t *atom)
{
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
return ATOMIC_OP(atom, atom->v++);
#else
return __atomic_fetch_add(&atom->v, 1, __ATOMIC_RELAXED);
#endif
}
static inline void odp_atomic_inc_u64(odp_atomic_u64_t *atom)
{
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
(void)ATOMIC_OP(atom, atom->v++);
#else
(void)__atomic_fetch_add(&atom->v, 1, __ATOMIC_RELAXED);
#endif
}
static inline uint64_t odp_atomic_fetch_dec_u64(odp_atomic_u64_t *atom)
{
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
return ATOMIC_OP(atom, atom->v--);
#else
return __atomic_fetch_sub(&atom->v, 1, __ATOMIC_RELAXED);
#endif
}
static inline void odp_atomic_dec_u64(odp_atomic_u64_t *atom)
{
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
(void)ATOMIC_OP(atom, atom->v--);
#else
(void)__atomic_fetch_sub(&atom->v, 1, __ATOMIC_RELAXED);
#endif
}
/**
* @}
*/
#include <odp/api/atomic.h>
#ifdef __cplusplus
}
#endif
#endif
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