/* Copyright (C) 2008 Emmanuel Varoquaux This file is part of XOS. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef UTIL_H #define UTIL_H #include "sysvars.h" #define PAGE(addr) ((addr) & ~(page_size - 1)) #define PAGE_ALIGN(addr) PAGE((addr) + (page_size - 1)) #define PAGE_OFFSET(addr) ((addr) & (page_size - 1)) #define min(a, b) ({ \ typeof (a) _a = (a); \ typeof (b) _b = (b); \ _a < _b ? _a : _b; \ }) #define roundup(x, y) ((y) * (((x) + ((y) - 1)) / (y))) #endif