Release 4.10 tools/include/linux/bitops.h
#ifndef _TOOLS_LINUX_BITOPS_H_
#define _TOOLS_LINUX_BITOPS_H_
#include <asm/types.h>
#include <linux/kernel.h>
#include <linux/compiler.h>
#ifndef __WORDSIZE
#define __WORDSIZE (__SIZEOF_LONG__ * 8)
#endif
#ifndef BITS_PER_LONG
# define BITS_PER_LONG __WORDSIZE
#endif
#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG))
#define BIT_WORD(nr) ((nr) / BITS_PER_LONG)
#define BITS_PER_BYTE 8
#define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
#define BITS_TO_U64(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u64))
#define BITS_TO_U32(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32))
#define BITS_TO_BYTES(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE)
extern unsigned int __sw_hweight8(unsigned int w);
extern unsigned int __sw_hweight16(unsigned int w);
extern unsigned int __sw_hweight32(unsigned int w);
extern unsigned long __sw_hweight64(__u64 w);
/*
* Include this here because some architectures need generic_ffs/fls in
* scope
*
* XXX: this needs to be asm/bitops.h, when we get to per arch optimizations
*/
#include <asm-generic/bitops.h>
#define for_each_set_bit(bit, addr, size) \
for ((bit) = find_first_bit((addr), (size)); \
(bit) < (size); \
(bit) = find_next_bit((addr), (size), (bit) + 1))
#define for_each_clear_bit(bit, addr, size) \
for ((bit) = find_first_zero_bit((addr), (size)); \
(bit) < (size); \
(bit) = find_next_zero_bit((addr), (size), (bit) + 1))
/* same as for_each_set_bit() but use bit as value to start with */
#define for_each_set_bit_from(bit, addr, size) \
for ((bit) = find_next_bit((addr), (size), (bit)); \
(bit) < (size); \
(bit) = find_next_bit((addr), (size), (bit) + 1))
static inline unsigned long hweight_long(unsigned long w)
{
return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| arnaldo carvalho de melo | arnaldo carvalho de melo | 24 | 80.00% | 1 | 50.00% |
| frederic weisbecker | frederic weisbecker | 6 | 20.00% | 1 | 50.00% |
| Total | 30 | 100.00% | 2 | 100.00% |
static inline unsigned fls_long(unsigned long l)
{
if (sizeof(l) == 4)
return fls(l);
return fls64(l);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| arnaldo carvalho de melo | arnaldo carvalho de melo | 32 | 100.00% | 1 | 100.00% |
| Total | 32 | 100.00% | 1 | 100.00% |
#endif
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| arnaldo carvalho de melo | arnaldo carvalho de melo | 133 | 59.64% | 6 | 42.86% |
| robert richter | robert richter | 24 | 10.76% | 1 | 7.14% |
| frederic weisbecker | frederic weisbecker | 18 | 8.07% | 1 | 7.14% |
| david ahern | david ahern | 14 | 6.28% | 1 | 7.14% |
| jiri olsa | jiri olsa | 12 | 5.38% | 1 | 7.14% |
| irina tirdea | irina tirdea | 9 | 4.04% | 1 | 7.14% |
| sukadev bhattiprolu | sukadev bhattiprolu | 7 | 3.14% | 1 | 7.14% |
| ingo molnar | ingo molnar | 5 | 2.24% | 1 | 7.14% |
| akinobu mita | akinobu mita | 1 | 0.45% | 1 | 7.14% |
| Total | 223 | 100.00% | 14 | 100.00% |
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