diff options
Diffstat (limited to 'kernel/arch/avr32/include/asm/barrier.h')
| -rw-r--r-- | kernel/arch/avr32/include/asm/barrier.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/kernel/arch/avr32/include/asm/barrier.h b/kernel/arch/avr32/include/asm/barrier.h new file mode 100644 index 000000000..715100790 --- /dev/null +++ b/kernel/arch/avr32/include/asm/barrier.h @@ -0,0 +1,22 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * 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. + */ +#ifndef __ASM_AVR32_BARRIER_H +#define __ASM_AVR32_BARRIER_H + +/* + * Weirdest thing ever.. no full barrier, but it has a write barrier! + */ +#define wmb() asm volatile("sync 0" : : : "memory") + +#ifdef CONFIG_SMP +# error "The AVR32 port does not support SMP" +#endif + +#include <asm-generic/barrier.h> + +#endif /* __ASM_AVR32_BARRIER_H */ |