| /* |
| * Memory barrier definitions for the Hexagon architecture |
| * |
| * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| * 02110-1301, USA. |
| */ |
| |
| #ifndef _ASM_BARRIER_H |
| #define _ASM_BARRIER_H |
| |
| #define rmb() barrier() |
| #define read_barrier_depends() barrier() |
| #define wmb() barrier() |
| #define mb() barrier() |
| #define smp_rmb() barrier() |
| #define smp_read_barrier_depends() barrier() |
| #define smp_wmb() barrier() |
| #define smp_mb() barrier() |
| #define smp_mb__before_atomic_dec() barrier() |
| #define smp_mb__after_atomic_dec() barrier() |
| #define smp_mb__before_atomic_inc() barrier() |
| #define smp_mb__after_atomic_inc() barrier() |
| |
| /* Set a value and use a memory barrier. Used by the scheduler somewhere. */ |
| #define set_mb(var, value) \ |
| do { var = value; mb(); } while (0) |
| |
| #endif /* _ASM_BARRIER_H */ |