1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * This file is subject to the terms and conditions of the GNU General Public 3*4882a593Smuzhiyun * License. See the file "COPYING" in the main directory of this archive 4*4882a593Smuzhiyun * for more details. 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun #ifndef _ASM_ARCH_HWEIGHT_H 8*4882a593Smuzhiyun #define _ASM_ARCH_HWEIGHT_H 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #ifdef ARCH_HAS_USABLE_BUILTIN_POPCOUNT 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #include <asm/types.h> 13*4882a593Smuzhiyun __arch_hweight32(unsigned int w)14*4882a593Smuzhiyunstatic inline unsigned int __arch_hweight32(unsigned int w) 15*4882a593Smuzhiyun { 16*4882a593Smuzhiyun return __builtin_popcount(w); 17*4882a593Smuzhiyun } 18*4882a593Smuzhiyun __arch_hweight16(unsigned int w)19*4882a593Smuzhiyunstatic inline unsigned int __arch_hweight16(unsigned int w) 20*4882a593Smuzhiyun { 21*4882a593Smuzhiyun return __builtin_popcount(w & 0xffff); 22*4882a593Smuzhiyun } 23*4882a593Smuzhiyun __arch_hweight8(unsigned int w)24*4882a593Smuzhiyunstatic inline unsigned int __arch_hweight8(unsigned int w) 25*4882a593Smuzhiyun { 26*4882a593Smuzhiyun return __builtin_popcount(w & 0xff); 27*4882a593Smuzhiyun } 28*4882a593Smuzhiyun __arch_hweight64(__u64 w)29*4882a593Smuzhiyunstatic inline unsigned long __arch_hweight64(__u64 w) 30*4882a593Smuzhiyun { 31*4882a593Smuzhiyun return __builtin_popcountll(w); 32*4882a593Smuzhiyun } 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun #else 35*4882a593Smuzhiyun #include <asm-generic/bitops/arch_hweight.h> 36*4882a593Smuzhiyun #endif 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun #endif /* _ASM_ARCH_HWEIGHT_H */ 39