| /* |
| * 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 |
