1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * OpenRISC Linux
4 *
5 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
6 */
7
8#ifndef __ASM_OPENRISC_FFS_H
9#define __ASM_OPENRISC_FFS_H
10
11#ifdef CONFIG_OPENRISC_HAVE_INST_FF1
12
13static inline int ffs(int x)
14{
15	int ret;
16
17	__asm__ ("l.ff1 %0,%1"
18		 : "=r" (ret)
19		 : "r" (x));
20
21	return ret;
22}
23
24#else
25#include <asm-generic/bitops/ffs.h>
26#endif
27
28#endif /* __ASM_OPENRISC_FFS_H */
29