/*- * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved. * Copyright (c) 2014-2015 Mellanox Technologies, Ltd. All rights reserved. * 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. * * $FreeBSD$ */ #ifndef _LINUX_MATH64_H #define _LINUX_MATH64_H #include <sys/stdint.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 div64_u64_rem(uint64_t dividend, uint64_t divisor, uint64_t *remainder) { *remainder = dividend % divisor; return (dividend / divisor); } static inline int64_t div64_s64(int64_t dividend, int64_t divisor) { return (dividend / divisor); } static inline uint64_t div64_u64(uint64_t dividend, uint64_t divisor) { return (dividend / divisor); } static inline uint64_t div_u64_rem(uint64_t dividend, uint32_t divisor, uint32_t *remainder) { *remainder = dividend % divisor; return (dividend / divisor); } static inline int64_t div_s64(int64_t dividend, int32_t divisor) { return (dividend / divisor); } static inline uint64_t div_u64(uint64_t dividend, uint32_t divisor) { return (dividend / divisor); } #endif /* _LINUX_MATH64_H */ |