30 lines
464 B
C
30 lines
464 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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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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#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 unsigned long __ffs(unsigned long 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-1;
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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 */
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