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 13 static 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