803f69144f
Disintegrate asm/system.h for M68K. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Greg Ungerer <gerg@uclinux.org> cc: linux-m68k@lists.linux-m68k.org
20 lines
516 B
C
20 lines
516 B
C
#ifndef _M68K_BARRIER_H
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#define _M68K_BARRIER_H
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/*
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* Force strict CPU ordering.
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* Not really required on m68k...
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*/
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#define nop() do { asm volatile ("nop"); barrier(); } while (0)
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#define mb() barrier()
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#define rmb() barrier()
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#define wmb() barrier()
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#define read_barrier_depends() ((void)0)
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#define set_mb(var, value) ({ (var) = (value); wmb(); })
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#define smp_mb() barrier()
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#define smp_rmb() barrier()
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#define smp_wmb() barrier()
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#define smp_read_barrier_depends() ((void)0)
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#endif /* _M68K_BARRIER_H */
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