| /* 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 */ |
