LXR linux/arch/sparc/include/asm/bitops

   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
  17extern int test_and_set_bit(unsigned long nr, volatile unsigned long *addr);
  18extern int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr);
  19extern int test_and_change_bit(unsigned long nr, volatile unsigned long *addr);
  20extern void set_bit(unsigned long nr, volatile unsigned long *addr);
  21extern void clear_bit(unsigned long nr, volatile unsigned long *addr);
  22extern 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
  35extern int ffs(int x);
  36extern 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
  46extern unsigned long __arch_hweight64(__u64 w);
  47extern unsigned int __arch_hweight32(unsigned int w);
  48extern unsigned int __arch_hweight16(unsigned int w);
  49extern 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