| /* | |
| * This file is subject to the terms and conditions of the GNU General Public | |
| * License. See the file "COPYING" in the main directory of this archive | |
| * for more details. | |
| * | |
| * Copyright (C) 2001 - 2012 Tensilica Inc. | |
| */ | |
| #ifndef _XTENSA_SYSTEM_H | |
| #define _XTENSA_SYSTEM_H | |
| #include <asm/core.h> | |
| #define __mb() ({ __asm__ __volatile__("memw" : : : "memory"); }) | |
| #define __rmb() barrier() | |
| #define __wmb() __mb() | |
| #ifdef CONFIG_SMP | |
| #define __smp_mb() __mb() | |
| #define __smp_rmb() __rmb() | |
| #define __smp_wmb() __wmb() | |
| #endif | |
| #if XCHAL_HAVE_S32C1I | |
| #define __smp_mb__before_atomic() barrier() | |
| #define __smp_mb__after_atomic() barrier() | |
| #endif | |
| #include <asm-generic/barrier.h> | |
| #endif /* _XTENSA_SYSTEM_H */ |