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29 lines
464 B
29 lines
464 B
/* 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 <[email protected]> |
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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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