From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- arch/openrisc/include/asm/bitops/__ffs.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 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 000000000..1e224b616 --- /dev/null +++ b/arch/openrisc/include/asm/bitops/__ffs.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * OpenRISC Linux + * + * Copyright (C) 2010-2011 Jonas Bonn + */ + +#ifndef __ASM_OPENRISC___FFS_H +#define __ASM_OPENRISC___FFS_H + + +#ifdef CONFIG_OPENRISC_HAVE_INST_FF1 + +static inline unsigned long __ffs(unsigned long x) +{ + int ret; + + __asm__ ("l.ff1 %0,%1" + : "=r" (ret) + : "r" (x)); + + return ret-1; +} + +#else +#include +#endif + +#endif /* __ASM_OPENRISC___FFS_H */ -- cgit v1.2.3