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|
/* Copyright (c) 2016, Linaro Limited
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/**
* @file
*
* ODP Atomic inline functions
*/
#ifndef _ODP_PLAT_ATOMIC_INLINES_H_
#define _ODP_PLAT_ATOMIC_INLINES_H_
_STATIC void odp_atomic_init_u32(odp_atomic_u32_t *atom, uint32_t val)
{
__atomic_store_n(&atom->v, val, __ATOMIC_RELAXED);
}
_STATIC uint32_t odp_atomic_load_u32(odp_atomic_u32_t *atom)
{
return __atomic_load_n(&atom->v, __ATOMIC_RELAXED);
}
_STATIC void odp_atomic_store_u32(odp_atomic_u32_t *atom, uint32_t val)
{
__atomic_store_n(&atom->v, val, __ATOMIC_RELAXED);
}
_STATIC 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 void odp_atomic_add_u32(odp_atomic_u32_t *atom, uint32_t val)
{
(void)__atomic_fetch_add(&atom->v, val, __ATOMIC_RELAXED);
}
_STATIC 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 void odp_atomic_sub_u32(odp_atomic_u32_t *atom, uint32_t val)
{
(void)__atomic_fetch_sub(&atom->v, val, __ATOMIC_RELAXED);
}
_STATIC uint32_t odp_atomic_fetch_inc_u32(odp_atomic_u32_t *atom)
{
return __atomic_fetch_add(&atom->v, 1, __ATOMIC_RELAXED);
}
_STATIC void odp_atomic_inc_u32(odp_atomic_u32_t *atom)
{
(void)__atomic_fetch_add(&atom->v, 1, __ATOMIC_RELAXED);
}
_STATIC uint32_t odp_atomic_fetch_dec_u32(odp_atomic_u32_t *atom)
{
return __atomic_fetch_sub(&atom->v, 1, __ATOMIC_RELAXED);
}
_STATIC void odp_atomic_dec_u32(odp_atomic_u32_t *atom)
{
(void)__atomic_fetch_sub(&atom->v, 1, __ATOMIC_RELAXED);
}
_STATIC int odp_atomic_cas_u32(odp_atomic_u32_t *atom, uint32_t *old_val,
uint32_t new_val)
{
return __atomic_compare_exchange_n(&atom->v, old_val, new_val,
0 /* strong */,
__ATOMIC_RELAXED,
__ATOMIC_RELAXED);
}
_STATIC uint32_t odp_atomic_xchg_u32(odp_atomic_u32_t *atom, uint32_t new_val)
{
return __atomic_exchange_n(&atom->v, new_val, __ATOMIC_RELAXED);
}
_STATIC void odp_atomic_max_u32(odp_atomic_u32_t *atom, uint32_t new_max)
{
uint32_t old_val;
old_val = odp_atomic_load_u32(atom);
while (new_max > old_val) {
if (odp_atomic_cas_u32(atom, &old_val, new_max))
break;
}
}
_STATIC void odp_atomic_min_u32(odp_atomic_u32_t *atom, uint32_t new_min)
{
uint32_t old_val;
old_val = odp_atomic_load_u32(atom);
while (new_min < old_val) {
if (odp_atomic_cas_u32(atom, &old_val, new_min))
break;
}
}
_STATIC 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 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 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 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 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 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 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 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 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 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 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
}
_STATIC int odp_atomic_cas_u64(odp_atomic_u64_t *atom, uint64_t *old_val,
uint64_t new_val)
{
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
int ret;
*old_val = ATOMIC_OP(atom, ATOMIC_CAS_OP(&ret, *old_val, new_val));
return ret;
#else
return __atomic_compare_exchange_n(&atom->v, old_val, new_val,
0 /* strong */,
__ATOMIC_RELAXED,
__ATOMIC_RELAXED);
#endif
}
_STATIC uint64_t odp_atomic_xchg_u64(odp_atomic_u64_t *atom, uint64_t new_val)
{
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
return ATOMIC_OP(atom, atom->v = new_val);
#else
return __atomic_exchange_n(&atom->v, new_val, __ATOMIC_RELAXED);
#endif
}
_STATIC void odp_atomic_max_u64(odp_atomic_u64_t *atom, uint64_t new_max)
{
uint64_t old_val;
old_val = odp_atomic_load_u64(atom);
while (new_max > old_val) {
if (odp_atomic_cas_u64(atom, &old_val, new_max))
break;
}
}
_STATIC void odp_atomic_min_u64(odp_atomic_u64_t *atom, uint64_t new_min)
{
uint64_t old_val;
old_val = odp_atomic_load_u64(atom);
while (new_min < old_val) {
if (odp_atomic_cas_u64(atom, &old_val, new_min))
break;
}
}
_STATIC uint32_t odp_atomic_load_acq_u32(odp_atomic_u32_t *atom)
{
return __atomic_load_n(&atom->v, __ATOMIC_ACQUIRE);
}
_STATIC void odp_atomic_store_rel_u32(odp_atomic_u32_t *atom, uint32_t val)
{
__atomic_store_n(&atom->v, val, __ATOMIC_RELEASE);
}
_STATIC void odp_atomic_add_rel_u32(odp_atomic_u32_t *atom, uint32_t val)
{
(void)__atomic_fetch_add(&atom->v, val, __ATOMIC_RELEASE);
}
_STATIC void odp_atomic_sub_rel_u32(odp_atomic_u32_t *atom, uint32_t val)
{
(void)__atomic_fetch_sub(&atom->v, val, __ATOMIC_RELEASE);
}
_STATIC int odp_atomic_cas_acq_u32(odp_atomic_u32_t *atom,
uint32_t *old_val, uint32_t new_val)
{
return __atomic_compare_exchange_n(&atom->v, old_val, new_val,
0 /* strong */,
__ATOMIC_ACQUIRE,
__ATOMIC_RELAXED);
}
_STATIC int odp_atomic_cas_rel_u32(odp_atomic_u32_t *atom,
uint32_t *old_val, uint32_t new_val)
{
return __atomic_compare_exchange_n(&atom->v, old_val, new_val,
0 /* strong */,
__ATOMIC_RELEASE,
__ATOMIC_RELAXED);
}
_STATIC int odp_atomic_cas_acq_rel_u32(odp_atomic_u32_t *atom,
uint32_t *old_val,
uint32_t new_val)
{
return __atomic_compare_exchange_n(&atom->v, old_val, new_val,
0 /* strong */,
__ATOMIC_ACQ_REL,
__ATOMIC_RELAXED);
}
_STATIC uint64_t odp_atomic_load_acq_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_ACQUIRE);
#endif
}
_STATIC void odp_atomic_store_rel_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_RELEASE);
#endif
}
_STATIC void odp_atomic_add_rel_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_RELEASE);
#endif
}
_STATIC void odp_atomic_sub_rel_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_RELEASE);
#endif
}
_STATIC int odp_atomic_cas_acq_u64(odp_atomic_u64_t *atom,
uint64_t *old_val, uint64_t new_val)
{
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
int ret;
*old_val = ATOMIC_OP(atom, ATOMIC_CAS_OP(&ret, *old_val, new_val));
return ret;
#else
return __atomic_compare_exchange_n(&atom->v, old_val, new_val,
0 /* strong */,
__ATOMIC_ACQUIRE,
__ATOMIC_RELAXED);
#endif
}
_STATIC int odp_atomic_cas_rel_u64(odp_atomic_u64_t *atom,
uint64_t *old_val, uint64_t new_val)
{
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
int ret;
*old_val = ATOMIC_OP(atom, ATOMIC_CAS_OP(&ret, *old_val, new_val));
return ret;
#else
return __atomic_compare_exchange_n(&atom->v, old_val, new_val,
0 /* strong */,
__ATOMIC_RELEASE,
__ATOMIC_RELAXED);
#endif
}
_STATIC int odp_atomic_cas_acq_rel_u64(odp_atomic_u64_t *atom,
uint64_t *old_val,
uint64_t new_val)
{
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
int ret;
*old_val = ATOMIC_OP(atom, ATOMIC_CAS_OP(&ret, *old_val, new_val));
return ret;
#else
return __atomic_compare_exchange_n(&atom->v, old_val, new_val,
0 /* strong */,
__ATOMIC_ACQ_REL,
__ATOMIC_RELAXED);
#endif
}
#endif
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