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/* Copyright (c) 2013 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 emulator */
#ifndef __CROS_EC_ATOMIC_H
#define __CROS_EC_ATOMIC_H
#include "common.h"
static inline void atomic_clear(uint32_t *addr, uint32_t bits)
{
__sync_and_and_fetch(addr, ~bits);
}
static inline void atomic_or(uint32_t *addr, uint32_t bits)
{
__sync_or_and_fetch(addr, bits);
}
static inline void atomic_add(uint32_t *addr, uint32_t value)
{
__sync_add_and_fetch(addr, value);
}
static inline void atomic_sub(uint32_t *addr, uint32_t value)
{
__sync_sub_and_fetch(addr, value);
}
static inline uint32_t atomic_read_clear(uint32_t *addr)
{
return __sync_fetch_and_and(addr, 0);
}
#endif /* __CROS_EC_ATOMIC_H */
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