162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci 362306a36Sopenharmony_ci#ifndef __ASM_CSKY_BITOPS_H 462306a36Sopenharmony_ci#define __ASM_CSKY_BITOPS_H 562306a36Sopenharmony_ci 662306a36Sopenharmony_ci#include <linux/compiler.h> 762306a36Sopenharmony_ci#include <asm/barrier.h> 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci/* 1062306a36Sopenharmony_ci * asm-generic/bitops/ffs.h 1162306a36Sopenharmony_ci */ 1262306a36Sopenharmony_cistatic inline int ffs(int x) 1362306a36Sopenharmony_ci{ 1462306a36Sopenharmony_ci if (!x) 1562306a36Sopenharmony_ci return 0; 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_ci asm volatile ( 1862306a36Sopenharmony_ci "brev %0\n" 1962306a36Sopenharmony_ci "ff1 %0\n" 2062306a36Sopenharmony_ci "addi %0, 1\n" 2162306a36Sopenharmony_ci : "=&r"(x) 2262306a36Sopenharmony_ci : "0"(x)); 2362306a36Sopenharmony_ci return x; 2462306a36Sopenharmony_ci} 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_ci/* 2762306a36Sopenharmony_ci * asm-generic/bitops/__ffs.h 2862306a36Sopenharmony_ci */ 2962306a36Sopenharmony_cistatic __always_inline unsigned long __ffs(unsigned long x) 3062306a36Sopenharmony_ci{ 3162306a36Sopenharmony_ci asm volatile ( 3262306a36Sopenharmony_ci "brev %0\n" 3362306a36Sopenharmony_ci "ff1 %0\n" 3462306a36Sopenharmony_ci : "=&r"(x) 3562306a36Sopenharmony_ci : "0"(x)); 3662306a36Sopenharmony_ci return x; 3762306a36Sopenharmony_ci} 3862306a36Sopenharmony_ci 3962306a36Sopenharmony_ci/* 4062306a36Sopenharmony_ci * asm-generic/bitops/fls.h 4162306a36Sopenharmony_ci */ 4262306a36Sopenharmony_cistatic __always_inline int fls(unsigned int x) 4362306a36Sopenharmony_ci{ 4462306a36Sopenharmony_ci asm volatile( 4562306a36Sopenharmony_ci "ff1 %0\n" 4662306a36Sopenharmony_ci : "=&r"(x) 4762306a36Sopenharmony_ci : "0"(x)); 4862306a36Sopenharmony_ci 4962306a36Sopenharmony_ci return (32 - x); 5062306a36Sopenharmony_ci} 5162306a36Sopenharmony_ci 5262306a36Sopenharmony_ci/* 5362306a36Sopenharmony_ci * asm-generic/bitops/__fls.h 5462306a36Sopenharmony_ci */ 5562306a36Sopenharmony_cistatic __always_inline unsigned long __fls(unsigned long x) 5662306a36Sopenharmony_ci{ 5762306a36Sopenharmony_ci return fls(x) - 1; 5862306a36Sopenharmony_ci} 5962306a36Sopenharmony_ci 6062306a36Sopenharmony_ci#include <asm-generic/bitops/ffz.h> 6162306a36Sopenharmony_ci#include <asm-generic/bitops/fls64.h> 6262306a36Sopenharmony_ci 6362306a36Sopenharmony_ci#ifndef _LINUX_BITOPS_H 6462306a36Sopenharmony_ci#error only <linux/bitops.h> can be included directly 6562306a36Sopenharmony_ci#endif 6662306a36Sopenharmony_ci 6762306a36Sopenharmony_ci#include <asm-generic/bitops/sched.h> 6862306a36Sopenharmony_ci#include <asm-generic/bitops/hweight.h> 6962306a36Sopenharmony_ci#include <asm-generic/bitops/lock.h> 7062306a36Sopenharmony_ci#include <asm-generic/bitops/atomic.h> 7162306a36Sopenharmony_ci 7262306a36Sopenharmony_ci/* 7362306a36Sopenharmony_ci * bug fix, why only could use atomic!!!! 7462306a36Sopenharmony_ci */ 7562306a36Sopenharmony_ci#include <asm-generic/bitops/non-atomic.h> 7662306a36Sopenharmony_ci 7762306a36Sopenharmony_ci#include <asm-generic/bitops/le.h> 7862306a36Sopenharmony_ci#include <asm-generic/bitops/ext2-atomic.h> 7962306a36Sopenharmony_ci#endif /* __ASM_CSKY_BITOPS_H */ 80