fls.h

 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_FLS_H
 9#define __ASM_OPENRISC_FLS_H
10
11
12#ifdef CONFIG_OPENRISC_HAVE_INST_FL1
13
14static inline __attribute_const__ int fls(unsigned int x)
15{
16	int ret;
17
18	__asm__ ("l.fl1 %0,%1"
19		 : "=r" (ret)
20		 : "r" (x));
21
22	return ret;
23}
24
25#else
26#include <asm-generic/bitops/fls.h>
27#endif
28
29#endif /* __ASM_OPENRISC_FLS_H */