1 /* 2 * bitops.h: Bit string operations on the V9. 3 * 4 * Copyright 1996, 1997 David S. Miller (davem@caip.rutgers.edu) 5 */ 6 7 #ifndef _SPARC64_BITOPS_H 8 #define _SPARC64_BITOPS_H 9 10 #ifndef _LINUX_BITOPS_H 11 #error only <linux/bitops.h> can be included directly 12 #endif 13 14 #include <linux/compiler.h> 15 #include <asm/byteorder.h> 16 17 extern int test_and_set_bit(unsigned long nr, volatile unsigned long *addr); 18 extern int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr); 19 extern int test_and_change_bit(unsigned long nr, volatile unsigned long *addr); 20 extern void set_bit(unsigned long nr, volatile unsigned long *addr); 21 extern void clear_bit(unsigned long nr, volatile unsigned long *addr); 22 extern void change_bit(unsigned long nr, volatile unsigned long *addr); 23 24 #include <asm-generic/bitops/non-atomic.h> 25 26 #define smp_mb__before_clear_bit() barrier() 27 #define smp_mb__after_clear_bit() barrier() 28 29 #include <asm-generic/bitops/fls.h> 30 #include <asm-generic/bitops/__fls.h> 31 #include <asm-generic/bitops/fls64.h> 32 33 #ifdef __KERNEL__ 34 35 extern int ffs(int x); 36 extern 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 extern unsigned long __arch_hweight64(__u64 w); 47 extern unsigned int __arch_hweight32(unsigned int w); 48 extern unsigned int __arch_hweight16(unsigned int w); 49 extern 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 #include <asm-generic/bitops/find.h> 56 57 #ifdef __KERNEL__ 58 59 #include <asm-generic/bitops/le.h> 60 61 #include <asm-generic/bitops/ext2-atomic-setbit.h> 62 63 #endif /* __KERNEL__ */ 64 65 #endif /* defined(_SPARC64_BITOPS_H) */ 66