linux/arch/sparc/include/asm/barrier_32.h
David Howells d550bbd40c Disintegrate asm/system.h for Sparc
Disintegrate asm/system.h for Sparc.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: sparclinux@vger.kernel.org
2012-03-28 18:30:03 +01:00

16 lines
566 B
C

#ifndef __SPARC_BARRIER_H
#define __SPARC_BARRIER_H
/* XXX Change this if we ever use a PSO mode kernel. */
#define mb() __asm__ __volatile__ ("" : : : "memory")
#define rmb() mb()
#define wmb() mb()
#define read_barrier_depends() do { } while(0)
#define set_mb(__var, __value) do { __var = __value; mb(); } while(0)
#define smp_mb() __asm__ __volatile__("":::"memory")
#define smp_rmb() __asm__ __volatile__("":::"memory")
#define smp_wmb() __asm__ __volatile__("":::"memory")
#define smp_read_barrier_depends() do { } while(0)
#endif /* !(__SPARC_BARRIER_H) */