u-boot/arch/openrisc/include/asm/bitops/ffs.h

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

#ifndef __ASM_OPENRISC_FFS_H
#define __ASM_OPENRISC_FFS_H

static inline int ffs(int x)
{
	int ret;

	__asm__ ("l.ff1 %0,%1"
		 : "=r" (ret)
		 : "r" (x));

	return ret;
}

#endif /* __ASM_OPENRISC_FFS_H */
openrisc: Add architecture header files Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> 2011-11-26 19:04:49 +00:00			`/*`
			`* OpenRISC Linux`
			`*`
			`* Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>`
			`*`
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> 2013-07-08 07:37:19 +00:00			`* SPDX-License-Identifier: GPL-2.0+`
openrisc: Add architecture header files Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> 2011-11-26 19:04:49 +00:00			`*/`

			`#ifndef __ASM_OPENRISC_FFS_H`
			`#define __ASM_OPENRISC_FFS_H`

			`static inline int ffs(int x)`
			`{`
			`int ret;`

			`__asm__ ("l.ff1 %0,%1"`
			`: "=r" (ret)`
			`: "r" (x));`

			`return ret;`
			`}`

			`#endif /* __ASM_OPENRISC_FFS_H */`