Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...
[pandora-kernel.git] / tools / perf / util / include / linux / bitops.h
1 #ifndef _PERF_LINUX_BITOPS_H_
2 #define _PERF_LINUX_BITOPS_H_
3
4 #include <linux/kernel.h>
5 #include <asm/hweight.h>
6
7 #define BITS_PER_LONG __WORDSIZE
8 #define BITS_PER_BYTE           8
9 #define BITS_TO_LONGS(nr)       DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
10
11 static inline void set_bit(int nr, unsigned long *addr)
12 {
13         addr[nr / BITS_PER_LONG] |= 1UL << (nr % BITS_PER_LONG);
14 }
15
16 static __always_inline int test_bit(unsigned int nr, const unsigned long *addr)
17 {
18         return ((1UL << (nr % BITS_PER_LONG)) &
19                 (((unsigned long *)addr)[nr / BITS_PER_LONG])) != 0;
20 }
21
22 static inline unsigned long hweight_long(unsigned long w)
23 {
24         return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
25 }
26
27 #endif