1 /* SPDX-License-Identifier: GPL-2.0 */
3 * bitops.h: Bit string operations on the V9.
5 * Copyright 1996, 1997 David S. Miller (davem@caip.rutgers.edu)
8 #ifndef _SPARC64_BITOPS_H
9 #define _SPARC64_BITOPS_H
11 #ifndef _LINUX_BITOPS_H
12 #error only <linux/bitops.h> can be included directly
15 #include <linux/compiler.h>
16 #include <asm/byteorder.h>
17 #include <asm/barrier.h>
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
);
26 int fls(unsigned int word
);
27 int __fls(unsigned long word
);
29 #include <asm-generic/bitops/non-atomic.h>
31 #include <asm-generic/bitops/fls64.h>
36 unsigned long __ffs(unsigned long);
38 #include <asm-generic/bitops/ffz.h>
39 #include <asm-generic/bitops/sched.h>
42 * hweightN: returns the hamming weight (i.e. the number
43 * of bits set) of a N-bit word
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
);
51 #include <asm-generic/bitops/const_hweight.h>
52 #include <asm-generic/bitops/lock.h>
53 #endif /* __KERNEL__ */
55 #include <asm-generic/bitops/find.h>
59 #include <asm-generic/bitops/le.h>
61 #include <asm-generic/bitops/ext2-atomic-setbit.h>
63 #endif /* __KERNEL__ */
65 #endif /* defined(_SPARC64_BITOPS_H) */