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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * bitops.h: Bit string operations on the V9.
3 *
4 * Copyright 1996, 1997 David S. Miller (davem@caip.rutgers.edu)
5 */
6
7#ifndef _SPARC64_BITOPS_H
8#define _SPARC64_BITOPS_H
9
10#ifndef _LINUX_BITOPS_H
11#error only <linux/bitops.h> can be included directly
12#endif
13
14#include <linux/compiler.h>
15#include <asm/byteorder.h>
16
17extern int test_and_set_bit(unsigned long nr, volatile unsigned long *addr);
18extern int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr);
19extern int test_and_change_bit(unsigned long nr, volatile unsigned long *addr);
20extern void set_bit(unsigned long nr, volatile unsigned long *addr);
21extern void clear_bit(unsigned long nr, volatile unsigned long *addr);
22extern void change_bit(unsigned long nr, volatile unsigned long *addr);
23
24#include <asm-generic/bitops/non-atomic.h>
25
26#define smp_mb__before_clear_bit() barrier()
27#define smp_mb__after_clear_bit() barrier()
28
29#include <asm-generic/bitops/fls.h>
30#include <asm-generic/bitops/__fls.h>
31#include <asm-generic/bitops/fls64.h>
32
33#ifdef __KERNEL__
34
35extern int ffs(int x);
36extern unsigned long __ffs(unsigned long);
37
38#include <asm-generic/bitops/ffz.h>
39#include <asm-generic/bitops/sched.h>
40
41/*
42 * hweightN: returns the hamming weight (i.e. the number
43 * of bits set) of a N-bit word
44 */
45
46extern unsigned long __arch_hweight64(__u64 w);
47extern unsigned int __arch_hweight32(unsigned int w);
48extern unsigned int __arch_hweight16(unsigned int w);
49extern unsigned int __arch_hweight8(unsigned int w);
50
51#include <asm-generic/bitops/const_hweight.h>
52#include <asm-generic/bitops/lock.h>
53#endif /* __KERNEL__ */
54
55#include <asm-generic/bitops/find.h>
56
57#ifdef __KERNEL__
58
59#include <asm-generic/bitops/le.h>
60
61#include <asm-generic/bitops/ext2-atomic-setbit.h>
62
63#endif /* __KERNEL__ */
64
65#endif /* defined(_SPARC64_BITOPS_H) */