text: /*-
   * Copyright (c) 2007 Cisco Systems, Inc.  All rights reserved.
   * Copyright (c) 2014-2015 Mellanox Technologies, Ltd. All rights reserved.
   * Copyright (c) 2016-2020 François Tigeot <ftigeot@wolfpond.org>
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice unmodified, this list of conditions, and the following
   *    disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * $FreeBSD: head/sys/compat/linuxkpi/common/include/linux/math64.h 290135 2015-10-29 08:28:39Z hselasky $
   */
  
  #ifndef _LINUX_MATH64_H
  #define _LINUX_MATH64_H
  
  #include <linux/types.h>
  
  #define	do_div(n, base) ({			\
  	uint32_t __base = (base);		\
  	uint32_t __rem;				\
  	__rem = ((uint64_t)(n)) % __base;	\
  	(n) = ((uint64_t)(n)) / __base;		\
  	__rem;					\
  })
  
  static inline uint64_t
  div_u64_rem(uint64_t dividend, uint32_t divisor, uint32_t *remainder)
  {
  	*remainder = dividend % divisor;
  	return (dividend / divisor);
  }
  
  static inline uint64_t
  div64_u64(uint64_t dividend, uint64_t divisor)
  {
  	return (dividend / divisor);
  }
  
  static inline int64_t
  div64_s64(int64_t dividend, int64_t divisor)
  {
  	return (dividend / divisor);
  }
  
  static inline uint64_t
  div_u64(uint64_t dividend, uint32_t divisor)
  {
  	return (dividend / divisor);
  }
  
  static inline int64_t
  div_s64(int64_t dividend, int32_t divisor)
  {
  	return (dividend / divisor);
  }
  
  static inline u64
  div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder)
  {
  	*remainder = dividend % divisor;
  	return (dividend / divisor);
  }
  
  static inline u64
  mul_u32_u32(u32 a, u32 b)
  {
  	return (uint64_t)a * b;
  }
  
  #endif	/* _LINUX_MATH64_H */
  