From ae473946586680b01c13975a3b674de23ad7c93e Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 28 Mar 2012 18:30:01 +0100 Subject: Disintegrate asm/system.h for AVR32 Disintegrate asm/system.h for AVR32. This has not been compiled at all. Signed-off-by: David Howells cc: Haavard Skinnemoen --- arch/avr32/include/asm/barrier.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 arch/avr32/include/asm/barrier.h (limited to 'arch/avr32/include/asm/barrier.h') diff --git a/arch/avr32/include/asm/barrier.h b/arch/avr32/include/asm/barrier.h new file mode 100644 index 000000000000..808001c9cf8c --- /dev/null +++ b/arch/avr32/include/asm/barrier.h @@ -0,0 +1,27 @@ +/* + * 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 + +#define mb() asm volatile("" : : : "memory") +#define rmb() mb() +#define wmb() asm volatile("sync 0" : : : "memory") +#define read_barrier_depends() do { } while(0) +#define set_mb(var, value) do { var = value; mb(); } while(0) + +#ifdef CONFIG_SMP +# error "The AVR32 port does not support SMP" +#else +# define smp_mb() barrier() +# define smp_rmb() barrier() +# define smp_wmb() barrier() +# define smp_read_barrier_depends() do { } while(0) +#endif + + +#endif /* __ASM_AVR32_BARRIER_H */ -- cgit v1.2.3