1/*
 2 * This file is subject to the terms and conditions of the GNU General Public
 3 * License.  See the file "COPYING" in the main directory of this archive
 4 * for more details.
 5 *
 6 */
 7#ifndef _ASM_ARCH_HWEIGHT_H
 8#define _ASM_ARCH_HWEIGHT_H
 9
10#ifdef ARCH_HAS_USABLE_BUILTIN_POPCOUNT
11
12#include <asm/types.h>
13
14static inline unsigned int __arch_hweight32(unsigned int w)
15{
16	return __builtin_popcount(w);
17}
18
19static inline unsigned int __arch_hweight16(unsigned int w)
20{
21	return __builtin_popcount(w & 0xffff);
22}
23
24static inline unsigned int __arch_hweight8(unsigned int w)
25{
26	return __builtin_popcount(w & 0xff);
27}
28
29static inline unsigned long __arch_hweight64(__u64 w)
30{
31	return __builtin_popcountll(w);
32}
33
34#else
35#include <asm-generic/bitops/arch_hweight.h>
36#endif
37
38#endif /* _ASM_ARCH_HWEIGHT_H */

 1/*
 2 * This file is subject to the terms and conditions of the GNU General Public
 3 * License.  See the file "COPYING" in the main directory of this archive
 4 * for more details.
 5 *
 6 */
 7#ifndef _ASM_ARCH_HWEIGHT_H
 8#define _ASM_ARCH_HWEIGHT_H
 9
10#ifdef ARCH_HAS_USABLE_BUILTIN_POPCOUNT
11
12#include <asm/types.h>
13
14static inline unsigned int __arch_hweight32(unsigned int w)
15{
16	return __builtin_popcount(w);
17}
18
19static inline unsigned int __arch_hweight16(unsigned int w)
20{
21	return __builtin_popcount(w & 0xffff);
22}
23
24static inline unsigned int __arch_hweight8(unsigned int w)
25{
26	return __builtin_popcount(w & 0xff);
27}
28
29static inline unsigned long __arch_hweight64(__u64 w)
30{
31	return __builtin_popcountll(w);
32}
33
34#else
35#include <asm-generic/bitops/arch_hweight.h>
36#endif
37
38#endif /* _ASM_ARCH_HWEIGHT_H */