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/* Copyright 2019 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* Atomic operations for RISC_V */
#ifndef __CROS_EC_ATOMIC_H
#define __CROS_EC_ATOMIC_H
#include "common.h"
#include "cpu.h"
#include "task.h"
typedef int atomic_t;
typedef atomic_t atomic_val_t;
static inline atomic_val_t atomic_clear_bits(atomic_t *addr, atomic_val_t bits)
{
return __atomic_fetch_and(addr, ~bits, __ATOMIC_SEQ_CST);
}
static inline atomic_val_t atomic_or(atomic_t *addr, atomic_val_t bits)
{
return __atomic_fetch_or(addr, bits, __ATOMIC_SEQ_CST);
}
static inline atomic_val_t atomic_add(atomic_t *addr, atomic_val_t value)
{
return __atomic_fetch_add(addr, value, __ATOMIC_SEQ_CST);
}
static inline atomic_val_t atomic_sub(atomic_t *addr, atomic_val_t value)
{
return __atomic_fetch_sub(addr, value, __ATOMIC_SEQ_CST);
}
static inline atomic_val_t atomic_clear(atomic_t *addr)
{
return __atomic_exchange_n(addr, 0, __ATOMIC_SEQ_CST);
}
static inline atomic_val_t atomic_read_add(atomic_t *addr, atomic_val_t value)
{
return __atomic_fetch_add(addr, value, __ATOMIC_SEQ_CST);
}
static inline atomic_val_t atomic_read_sub(atomic_t *addr, atomic_val_t value)
{
return __atomic_fetch_sub(addr, value, __ATOMIC_SEQ_CST);
}
#endif /* __CROS_EC_ATOMIC_H */
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