[mirror_ubuntu-jammy-kernel.git] / arch / openrisc / include / asm / bitops / ffs.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * OpenRISC Linux
 *
 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
 */

#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 <asm-generic/bitops/ffs.h>
#endif

#endif /* __ASM_OPENRISC_FFS_H */
Commit	Line	Data
2874c5fd	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
58e0166a JB	2	/*
	3	* OpenRISC Linux
	4	*
	5	* Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
58e0166a JB	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 */