5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
39 lines
792 B
C
39 lines
792 B
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
*/
|
|
#ifndef _ASM_ARCH_HWEIGHT_H
|
|
#define _ASM_ARCH_HWEIGHT_H
|
|
|
|
#ifdef ARCH_HAS_USABLE_BUILTIN_POPCOUNT
|
|
|
|
#include <asm/types.h>
|
|
|
|
static inline unsigned int __arch_hweight32(unsigned int w)
|
|
{
|
|
return __builtin_popcount(w);
|
|
}
|
|
|
|
static inline unsigned int __arch_hweight16(unsigned int w)
|
|
{
|
|
return __builtin_popcount(w & 0xffff);
|
|
}
|
|
|
|
static inline unsigned int __arch_hweight8(unsigned int w)
|
|
{
|
|
return __builtin_popcount(w & 0xff);
|
|
}
|
|
|
|
static inline unsigned long __arch_hweight64(__u64 w)
|
|
{
|
|
return __builtin_popcountll(w);
|
|
}
|
|
|
|
#else
|
|
#include <asm-generic/bitops/arch_hweight.h>
|
|
#endif
|
|
|
|
#endif /* _ASM_ARCH_HWEIGHT_H */
|