d550bbd40c
Disintegrate asm/system.h for Sparc. Signed-off-by: David Howells <dhowells@redhat.com> cc: sparclinux@vger.kernel.org
15 lines
566 B
C
15 lines
566 B
C
#ifndef __SPARC_BARRIER_H
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#define __SPARC_BARRIER_H
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/* XXX Change this if we ever use a PSO mode kernel. */
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#define mb() __asm__ __volatile__ ("" : : : "memory")
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#define rmb() mb()
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#define wmb() mb()
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#define read_barrier_depends() do { } while(0)
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#define set_mb(__var, __value) do { __var = __value; mb(); } while(0)
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#define smp_mb() __asm__ __volatile__("":::"memory")
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#define smp_rmb() __asm__ __volatile__("":::"memory")
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#define smp_wmb() __asm__ __volatile__("":::"memory")
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#define smp_read_barrier_depends() do { } while(0)
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#endif /* !(__SPARC_BARRIER_H) */
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