1#ifndef _PERF_LINUX_BITOPS_H_
2#define _PERF_LINUX_BITOPS_H_
3
4/* ANDROID_CHANGE_BEGIN */
5#if 0
6#include <linux/kernel.h>
7#include <linux/compiler.h>
8#include <asm/hweight.h>
9#else
10#include "kernel.h"
11#include "compiler.h"
12#include "../asm/hweight.h"
13#if defined(__BIONIC__) || defined(__APPLE__)
14#define __WORDSIZE 32
15#endif
16#endif
17/* ANDROID_CHANGE_END */
18
19#define BITS_PER_LONG __WORDSIZE
20#define BITS_PER_BYTE           8
21#define BITS_TO_LONGS(nr)       DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
22
23static inline void set_bit(int nr, unsigned long *addr)
24{
25	addr[nr / BITS_PER_LONG] |= 1UL << (nr % BITS_PER_LONG);
26}
27
28static inline void clear_bit(int nr, unsigned long *addr)
29{
30	addr[nr / BITS_PER_LONG] &= ~(1UL << (nr % BITS_PER_LONG));
31}
32
33static __always_inline int test_bit(unsigned int nr, const unsigned long *addr)
34{
35	return ((1UL << (nr % BITS_PER_LONG)) &
36		(((unsigned long *)addr)[nr / BITS_PER_LONG])) != 0;
37}
38
39static inline unsigned long hweight_long(unsigned long w)
40{
41	return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
42}
43
44#endif
45