From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001 From: Yuval Adam <_@yuv.al> Date: Wed, 30 Aug 2017 08:25:59 +0000 Subject: Initial file dump from open source release --- arch/openrisc/include/asm/bitops/ffs.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 arch/openrisc/include/asm/bitops/ffs.h (limited to 'arch/openrisc/include/asm/bitops/ffs.h') diff --git a/arch/openrisc/include/asm/bitops/ffs.h b/arch/openrisc/include/asm/bitops/ffs.h new file mode 100644 index 00000000..9de46246 --- /dev/null +++ b/arch/openrisc/include/asm/bitops/ffs.h @@ -0,0 +1,32 @@ +/* + * OpenRISC Linux + * + * Copyright (C) 2010-2011 Jonas Bonn + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef __ASM_OPENRISC_FFS_H +#define __ASM_OPENRISC_FFS_H + +#ifdef CONFIG_OPENRISC_HAVE_INST_FF1 + +static inline int ffs(int x) +{ + int ret; + + __asm__ ("l.ff1 %0,%1" + : "=r" (ret) + : "r" (x)); + + return ret; +} + +#else +#include +#endif + +#endif /* __ASM_OPENRISC_FFS_H */ -- cgit v1.3.1