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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright (c) 2024 Nokia
*/
#ifndef ODP_DEFAULT_WAIT_UNTIL_H_
#define ODP_DEFAULT_WAIT_UNTIL_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <odp/api/plat/cpu_inlines.h>
#include <stdint.h>
/**
* The _odp_wait_until_eq_*() functions defined in this header are intended to
* be used only with the scalable scheduler and queue implementations. Even
* though these functions use standard non-atomic parameter types, the
* parameters must only be operated using atomic operations. If new functions
* are added to this file, they should use _odp_wait_until_equal_*() prefix and
* atomic parameter types.
*/
static inline void _odp_wait_until_eq_u32(uint32_t *val, uint32_t expected)
{
while (__atomic_load_n(val, __ATOMIC_RELAXED) != expected)
odp_cpu_pause();
}
static inline void _odp_wait_until_eq_bitset(bitset_t *val, bitset_t expected)
{
while (__atomic_load_n(val, __ATOMIC_RELAXED) != expected)
odp_cpu_pause();
}
static inline void _odp_wait_until_eq_acq_u8(uint8_t *val, uint8_t expected)
{
while (__atomic_load_n(val, __ATOMIC_ACQUIRE) != expected)
odp_cpu_pause();
}
static inline void _odp_wait_until_eq_acq_u32(uint32_t *val, uint32_t expected)
{
while (__atomic_load_n(val, __ATOMIC_ACQUIRE) != expected)
odp_cpu_pause();
}
#ifdef __cplusplus
}
#endif
#endif
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