1 /* $NetBSD: vmparam.h,v 1.31 2019/03/27 17:15:29 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1988 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #ifndef _CATS_VMPARAM_H_ 33 #define _CATS_VMPARAM_H_ 34 35 #include <arm/arm32/vmparam.h> 36 37 /* 38 * Address space constants 39 */ 40 41 /* 42 * The line between user space and kernel space 43 * Mappings >= KERNEL_BASE are constant across all processes 44 */ 45 #define KERNEL_BASE 0xf0000000 46 47 /* 48 * Size of User Raw I/O map 49 */ 50 51 #define USRIOSIZE 300 52 53 /* virtual sizes (bytes) for various kernel submaps */ 54 55 #define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE) 56 57 /* 58 * max number of non-contig chunks of physical RAM you can have 59 */ 60 61 #define VM_PHYSSEG_MAX 32 62 63 /* 64 * when converting a physical address to a vm_page structure, we 65 * want to use a binary search on the chunks of physical memory 66 * to find our RAM 67 */ 68 69 #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 70 71 /* 72 * we support 2 free lists: 73 * 74 * - DEFAULT for all systems 75 * - ISADMA for the ISA DMA range 76 */ 77 78 #define VM_NFREELIST 2 79 #define VM_FREELIST_DEFAULT 0 80 #define VM_FREELIST_ISADMA 1 81 82 #endif /* _CATS_VMPARAM_H_ */ 83