1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef __ASM_SH_BITOPS_H 3*4882a593Smuzhiyun #define __ASM_SH_BITOPS_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #ifndef _LINUX_BITOPS_H 6*4882a593Smuzhiyun #error only <linux/bitops.h> can be included directly 7*4882a593Smuzhiyun #endif 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun /* For __swab32 */ 10*4882a593Smuzhiyun #include <asm/byteorder.h> 11*4882a593Smuzhiyun #include <asm/barrier.h> 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #ifdef CONFIG_GUSA_RB 14*4882a593Smuzhiyun #include <asm/bitops-grb.h> 15*4882a593Smuzhiyun #elif defined(CONFIG_CPU_SH2A) 16*4882a593Smuzhiyun #include <asm-generic/bitops/atomic.h> 17*4882a593Smuzhiyun #include <asm/bitops-op32.h> 18*4882a593Smuzhiyun #elif defined(CONFIG_CPU_SH4A) 19*4882a593Smuzhiyun #include <asm/bitops-llsc.h> 20*4882a593Smuzhiyun #elif defined(CONFIG_CPU_J2) && defined(CONFIG_SMP) 21*4882a593Smuzhiyun #include <asm/bitops-cas.h> 22*4882a593Smuzhiyun #else 23*4882a593Smuzhiyun #include <asm-generic/bitops/atomic.h> 24*4882a593Smuzhiyun #include <asm-generic/bitops/non-atomic.h> 25*4882a593Smuzhiyun #endif 26*4882a593Smuzhiyun ffz(unsigned long word)27*4882a593Smuzhiyunstatic inline unsigned long ffz(unsigned long word) 28*4882a593Smuzhiyun { 29*4882a593Smuzhiyun unsigned long result; 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun __asm__("1:\n\t" 32*4882a593Smuzhiyun "shlr %1\n\t" 33*4882a593Smuzhiyun "bt/s 1b\n\t" 34*4882a593Smuzhiyun " add #1, %0" 35*4882a593Smuzhiyun : "=r" (result), "=r" (word) 36*4882a593Smuzhiyun : "0" (~0L), "1" (word) 37*4882a593Smuzhiyun : "t"); 38*4882a593Smuzhiyun return result; 39*4882a593Smuzhiyun } 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun /** 42*4882a593Smuzhiyun * __ffs - find first bit in word. 43*4882a593Smuzhiyun * @word: The word to search 44*4882a593Smuzhiyun * 45*4882a593Smuzhiyun * Undefined if no bit exists, so code should check against 0 first. 46*4882a593Smuzhiyun */ __ffs(unsigned long word)47*4882a593Smuzhiyunstatic inline unsigned long __ffs(unsigned long word) 48*4882a593Smuzhiyun { 49*4882a593Smuzhiyun unsigned long result; 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun __asm__("1:\n\t" 52*4882a593Smuzhiyun "shlr %1\n\t" 53*4882a593Smuzhiyun "bf/s 1b\n\t" 54*4882a593Smuzhiyun " add #1, %0" 55*4882a593Smuzhiyun : "=r" (result), "=r" (word) 56*4882a593Smuzhiyun : "0" (~0L), "1" (word) 57*4882a593Smuzhiyun : "t"); 58*4882a593Smuzhiyun return result; 59*4882a593Smuzhiyun } 60*4882a593Smuzhiyun 61*4882a593Smuzhiyun #include <asm-generic/bitops/find.h> 62*4882a593Smuzhiyun #include <asm-generic/bitops/ffs.h> 63*4882a593Smuzhiyun #include <asm-generic/bitops/hweight.h> 64*4882a593Smuzhiyun #include <asm-generic/bitops/lock.h> 65*4882a593Smuzhiyun #include <asm-generic/bitops/sched.h> 66*4882a593Smuzhiyun #include <asm-generic/bitops/le.h> 67*4882a593Smuzhiyun #include <asm-generic/bitops/ext2-atomic.h> 68*4882a593Smuzhiyun #include <asm-generic/bitops/fls.h> 69*4882a593Smuzhiyun #include <asm-generic/bitops/__fls.h> 70*4882a593Smuzhiyun #include <asm-generic/bitops/fls64.h> 71*4882a593Smuzhiyun 72*4882a593Smuzhiyun #endif /* __ASM_SH_BITOPS_H */ 73