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Viewing changes to arch/openrisc/include/asm/bitops/ffs.h

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

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arch/openrisc/include/asm/bitops/ffs.h
 
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/*
 
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 * OpenRISC Linux
 
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 *
 
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 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
 
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 *
 
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 * This program is free software; you can redistribute it and/or modify
 
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 * it under the terms of the GNU General Public License as published by
 
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 * the Free Software Foundation; either version 2 of the License, or
 
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 * (at your option) any later version.
 
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 */
 
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#ifndef __ASM_OPENRISC_FFS_H
 
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#define __ASM_OPENRISC_FFS_H
 
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#ifdef CONFIG_OPENRISC_HAVE_INST_FF1
 
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static inline int ffs(int x)
 
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{
 
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        int ret;
 
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        __asm__ ("l.ff1 %0,%1"
 
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                 : "=r" (ret)
 
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                 : "r" (x));
 
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        return ret;
 
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}
 
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#else
 
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#include <asm-generic/bitops/ffs.h>
 
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#endif
 
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#endif /* __ASM_OPENRISC_FFS_H */