Files
Linux_Drivers/linux_5.10/arch/openrisc/include/asm/bitops/fls.h
sam.xiang 5c7dd7acc3 [linux] create linux_5.10.4 from T-head official:
repo: https://github.com/T-head-Semi/linux
	commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb

Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
2023-03-10 20:32:41 +08:00

30 lines
441 B
C

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* OpenRISC Linux
*
* Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
*/
#ifndef __ASM_OPENRISC_FLS_H
#define __ASM_OPENRISC_FLS_H
#ifdef CONFIG_OPENRISC_HAVE_INST_FL1
static inline int fls(unsigned int x)
{
int ret;
__asm__ ("l.fl1 %0,%1"
: "=r" (ret)
: "r" (x));
return ret;
}
#else
#include <asm-generic/bitops/fls.h>
#endif
#endif /* __ASM_OPENRISC_FLS_H */