mirror of https://gitee.com/openkylin/linux.git
30 lines
675 B
C
30 lines
675 B
C
/*
|
|
* 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 - 2005 Tensilica Inc.
|
|
*/
|
|
|
|
#ifndef _XTENSA_SYSTEM_H
|
|
#define _XTENSA_SYSTEM_H
|
|
|
|
#define smp_read_barrier_depends() do { } while(0)
|
|
#define read_barrier_depends() do { } while(0)
|
|
|
|
#define mb() barrier()
|
|
#define rmb() mb()
|
|
#define wmb() mb()
|
|
|
|
#ifdef CONFIG_SMP
|
|
#error smp_* not defined
|
|
#else
|
|
#define smp_mb() barrier()
|
|
#define smp_rmb() barrier()
|
|
#define smp_wmb() barrier()
|
|
#endif
|
|
|
|
#define set_mb(var, value) do { var = value; mb(); } while (0)
|
|
|
|
#endif /* _XTENSA_SYSTEM_H */
|