cmpxchg-emu.h

 1/* SPDX-License-Identifier: GPL-2.0+ */
 2/*
 3 * Emulated 1-byte and 2-byte cmpxchg operations for architectures
 4 * lacking direct support for these sizes.  These are implemented in terms
 5 * of 4-byte cmpxchg operations.
 6 *
 7 * Copyright (C) 2024 Paul E. McKenney.
 8 */
 9
10#ifndef __LINUX_CMPXCHG_EMU_H
11#define __LINUX_CMPXCHG_EMU_H
12
13uintptr_t cmpxchg_emu_u8(volatile u8 *p, uintptr_t old, uintptr_t new);
14
15#endif /* __LINUX_CMPXCHG_EMU_H */