treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
[muen/linux.git] / arch / openrisc / include / asm / bitops / __fls.h
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * OpenRISC Linux
4  *
5  * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
6  */
7
8 #ifndef __ASM_OPENRISC___FLS_H
9 #define __ASM_OPENRISC___FLS_H
10
11
12 #ifdef CONFIG_OPENRISC_HAVE_INST_FL1
13
14 static inline unsigned long __fls(unsigned long x)
15 {
16         int ret;
17
18         __asm__ ("l.fl1 %0,%1"
19                  : "=r" (ret)
20                  : "r" (x));
21
22         return ret-1;
23 }
24
25 #else
26 #include <asm-generic/bitops/__fls.h>
27 #endif
28
29 #endif /* __ASM_OPENRISC___FLS_H */