Linux Kernel  3.7.1
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bitops.h
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1 /*
2  * OpenRISC Linux
3  *
4  * Linux architectural port borrowing liberally from similar works of
5  * others. All original copyrights apply as per the original source
6  * declaration.
7  *
8  * OpenRISC implementation:
9  * Copyright (C) 2003 Matjaz Breskvar <[email protected]>
10  * Copyright (C) 2010-2011 Jonas Bonn <[email protected]>
11  * et al.
12  *
13  * This program is free software; you can redistribute it and/or modify
14  * it under the terms of the GNU General Public License as published by
15  * the Free Software Foundation; either version 2 of the License, or
16  * (at your option) any later version.
17  */
18 
19 #ifndef __ASM_OPENRISC_BITOPS_H
20 #define __ASM_OPENRISC_BITOPS_H
21 
22 /*
23  * Where we haven't written assembly versions yet, we fall back to the
24  * generic implementations. Otherwise, we pull in our (hopefully)
25  * optimized versions.
26  */
27 
28 #include <linux/irqflags.h>
29 #include <linux/compiler.h>
30 
31 /*
32  * clear_bit may not imply a memory barrier
33  */
34 #ifndef smp_mb__before_clear_bit
35 #define smp_mb__before_clear_bit() smp_mb()
36 #define smp_mb__after_clear_bit() smp_mb()
37 #endif
38 
39 #include <asm/bitops/__ffs.h>
40 #include <asm-generic/bitops/ffz.h>
41 #include <asm/bitops/fls.h>
42 #include <asm/bitops/__fls.h>
45 
46 #ifndef _LINUX_BITOPS_H
47 #error only <linux/bitops.h> can be included directly
48 #endif
49 
51 #include <asm/bitops/ffs.h>
54 
58 
59 #endif /* __ASM_GENERIC_BITOPS_H */