[blktrace.git] / barrier.h

#ifndef BARRIER_H
#define BARRIER_H

#if defined(__ia64__)
#define store_barrier()         asm volatile ("mf" ::: "memory")
#elif defined(__x86_64__)
#define store_barrier()         asm volatile("sfence" ::: "memory")
#elif defined(__i386__)
#define store_barrier()         asm volatile ("": : :"memory")
#elif defined(__ppc__) || defined(__powerpc__)
#define store_barrier()         asm volatile ("eieio" : : : "memory")
#else
#error Define store_barrier() for your CPU
#endif

#endif
Commit	Line	Data
21f55651 JA	1	#ifndef BARRIER_H
	2	#define BARRIER_H
	3
	4	#if defined(__ia64__)
	5	#define store_barrier() asm volatile ("mf" ::: "memory")
	6	#elif defined(__x86_64__)
	7	#define store_barrier() asm volatile("sfence" ::: "memory")
	8	#elif defined(__i386__)
	9	#define store_barrier() asm volatile ("": : :"memory")
	10	#elif defined(__ppc__) \|\| defined(__powerpc__)
	11	#define store_barrier() asm volatile ("eieio" : : : "memory")
	12	#else
	13	#error Define store_barrier() for your CPU
	14	#endif
	15
	16	#endif