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 int fls(int x) 19{ 20 int ret; 21 22 __asm__ ("l.fl1 %0,%1" 23 : "=r" (ret) 24 : "r" (x)); 25 26 return ret; 27} 28 29#else 30#include <asm-generic/bitops/fls.h> 31#endif 32 33#endif /* __ASM_OPENRISC_FLS_H */ 34