18c2ecf20Sopenharmony_ci/* 28c2ecf20Sopenharmony_ci * This file is subject to the terms and conditions of the GNU General Public 38c2ecf20Sopenharmony_ci * License. See the file "COPYING" in the main directory of this archive 48c2ecf20Sopenharmony_ci * for more details. 58c2ecf20Sopenharmony_ci * 68c2ecf20Sopenharmony_ci * Copyright (C) 2001 - 2012 Tensilica Inc. 78c2ecf20Sopenharmony_ci */ 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ci#ifndef _XTENSA_SYSTEM_H 108c2ecf20Sopenharmony_ci#define _XTENSA_SYSTEM_H 118c2ecf20Sopenharmony_ci 128c2ecf20Sopenharmony_ci#include <asm/core.h> 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_ci#define mb() ({ __asm__ __volatile__("memw" : : : "memory"); }) 158c2ecf20Sopenharmony_ci#define rmb() barrier() 168c2ecf20Sopenharmony_ci#define wmb() mb() 178c2ecf20Sopenharmony_ci 188c2ecf20Sopenharmony_ci#if XCHAL_HAVE_S32C1I 198c2ecf20Sopenharmony_ci#define __smp_mb__before_atomic() barrier() 208c2ecf20Sopenharmony_ci#define __smp_mb__after_atomic() barrier() 218c2ecf20Sopenharmony_ci#endif 228c2ecf20Sopenharmony_ci 238c2ecf20Sopenharmony_ci#include <asm-generic/barrier.h> 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ci#endif /* _XTENSA_SYSTEM_H */ 26