1/*
2 * OpenRISC Linux
3 *
4 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12#ifndef __ASM_OPENRISC___FLS_H
13#define __ASM_OPENRISC___FLS_H
14
15
16#ifdef CONFIG_OPENRISC_HAVE_INST_FL1
17
18static inline unsigned long __fls(unsigned long x)
19{
20	int ret;
21
22	__asm__ ("l.fl1 %0,%1"
23		 : "=r" (ret)
24		 : "r" (x));
25
26	return ret-1;
27}
28
29#else
30#include <asm-generic/bitops/__fls.h>
31#endif
32
33#endif /* __ASM_OPENRISC___FLS_H */
34