1 /* 2 * Memory quantity calculation utilities. 3 * 4 * Copyright (C) 2021, 2022 Paul Boddie <paul@boddie.org.uk> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of 9 * the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA 20 */ 21 22 #pragma once 23 24 #include <systypes/base.h> 25 26 #define PAGE_SIZE L4_PAGESIZE 27 28 29 30 /* Address arithmetic. */ 31 32 offset_t page(unsigned int n); 33 34 unsigned int page_order(offset_t size); 35 36 offset_t round(offset_t value, offset_t increment); 37 38 offset_t round_multiple(offset_t value, offset_t increment); 39 40 offset_t trunc(offset_t value, offset_t increment); 41 42 offset_t trunc_multiple(offset_t value, offset_t increment); 43 44 offset_t max_multiple(offset_t start, offset_t end, offset_t increment); 45 46 // vim: tabstop=4 expandtab shiftwidth=4