| /* | |
| * linux/include/asm-arm/atomic.h | |
| * | |
| * Copyright (c) 1996 Russell King. | |
| * | |
| * This program is free software; you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License version 2 as | |
| * published by the Free Software Foundation. | |
| * | |
| * Changelog: | |
| * 27-06-1996 RMK Created | |
| * 13-04-1997 RMK Made functions atomic! | |
| * 07-12-1997 RMK Upgraded for v2.1. | |
| * 26-08-1998 PJB Added #ifdef __KERNEL__ | |
| */ | |
| #ifndef __ASM_ARM_ATOMIC_H | |
| #define __ASM_ARM_ATOMIC_H | |
| #ifdef CONFIG_SMP | |
| #error SMP not supported | |
| #endif | |
| #include <asm/proc-armv/system.h> | |
| #include <asm-generic/atomic.h> | |
| /* Atomic operations are already serializing on ARM */ | |
| #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() | |
| #endif |