1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * bitops.h: Bit string operations on the V9. 4 * 5 * Copyright 1996, 1997 David S. Miller (davem@caip.rutgers.edu) 6 */ 7 8 #ifndef _SPARC64_BITOPS_H 9 #define _SPARC64_BITOPS_H 10 11 #ifndef _LINUX_BITOPS_H 12 #error only <linux/bitops.h> can be included directly 13 #endif 14 15 #include <linux/compiler.h> 16 #include <asm/byteorder.h> 17 #include <asm/barrier.h> 18 19 int test_and_set_bit(unsigned long nr, volatile unsigned long *addr); 20 int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr); 21 int test_and_change_bit(unsigned long nr, volatile unsigned long *addr); 22 void set_bit(unsigned long nr, volatile unsigned long *addr); 23 void clear_bit(unsigned long nr, volatile unsigned long *addr); 24 void change_bit(unsigned long nr, volatile unsigned long *addr); 25 26 int fls(unsigned int word); 27 int __fls(unsigned long word); 28 29 #include <asm-generic/bitops/non-atomic.h> 30 31 #include <asm-generic/bitops/fls64.h> 32 33 #ifdef __KERNEL__ 34 35 int ffs(int x); 36 unsigned long __ffs(unsigned long); 37 38 #include <asm-generic/bitops/ffz.h> 39 #include <asm-generic/bitops/sched.h> 40 41 /* 42 * hweightN: returns the hamming weight (i.e. the number 43 * of bits set) of a N-bit word 44 */ 45 46 unsigned long __arch_hweight64(__u64 w); 47 unsigned int __arch_hweight32(unsigned int w); 48 unsigned int __arch_hweight16(unsigned int w); 49 unsigned int __arch_hweight8(unsigned int w); 50 51 #include <asm-generic/bitops/const_hweight.h> 52 #include <asm-generic/bitops/lock.h> 53 #endif /* __KERNEL__ */ 54 55 #ifdef __KERNEL__ 56 57 #include <asm-generic/bitops/le.h> 58 59 #include <asm-generic/bitops/ext2-atomic-setbit.h> 60 61 #endif /* __KERNEL__ */ 62 63 #endif /* defined(_SPARC64_BITOPS_H) */ 64