1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _LINUX_SYNC_CORE_H 3#define _LINUX_SYNC_CORE_H 4 5#ifdef CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE 6#include <asm/sync_core.h> 7#else 8/* 9 * This is a dummy sync_core_before_usermode() implementation that can be used 10 * on all architectures which return to user-space through core serializing 11 * instructions. 12 * If your architecture returns to user-space through non-core-serializing 13 * instructions, you need to write your own functions. 14 */ 15static inline void sync_core_before_usermode(void) 16{ 17} 18#endif 19 20#endif /* _LINUX_SYNC_CORE_H */ 21 22