1 /* $OpenBSD: vmparam.h,v 1.32 2021/03/15 15:49:20 deraadt Exp $ */ 2 /* $NetBSD: vmparam.h,v 1.1 1996/09/30 16:34:38 ws Exp $ */ 3 4 /*- 5 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 6 * Copyright (C) 1995, 1996 TooLs GmbH. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by TooLs GmbH. 20 * 4. The name of TooLs GmbH may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 28 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 29 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 31 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 32 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #ifndef MACHINE_VMPARAM_H 36 #define MACHINE_VMPARAM_H 37 38 #define USRSTACK VM_MAXUSER_ADDRESS 39 40 #ifndef MAXTSIZ 41 #define MAXTSIZ (64*1024*1024) /* max text size */ 42 #endif 43 44 #ifndef DFLDSIZ 45 #define DFLDSIZ (64*1024*1024) /* default data size */ 46 #endif 47 48 #ifndef MAXDSIZ 49 #define MAXDSIZ (2UL*1024*1024*1024) /* max data size */ 50 #endif 51 52 #ifndef BRKSIZ 53 #define BRKSIZ MAXDSIZ /* heap gap size */ 54 #endif 55 56 #ifndef DFLSSIZ 57 #define DFLSSIZ (2*1024*1024) /* default stack size */ 58 #endif 59 60 #ifndef MAXSSIZ 61 #define MAXSSIZ (32*1024*1024) /* max stack size */ 62 #endif 63 64 #define STACKGAP_RANDOM 256*1024 65 66 /* 67 * Size of shared memory map 68 */ 69 #ifndef SHMMAXPGS 70 #define SHMMAXPGS 8192 /* 32mb */ 71 #endif 72 73 /* 74 * Size of User Raw I/O map 75 */ 76 #define USRIOSIZE 1024 77 78 /* 79 * Would like to have MAX addresses = 0, but this doesn't (currently) work 80 */ 81 #define VM_MIN_ADDRESS ((vaddr_t)PAGE_SIZE) 82 #define VM_MAXUSER_ADDRESS ((vaddr_t)0xfffff000) 83 #define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS 84 #define VM_MIN_KERNEL_ADDRESS ((vaddr_t)(PPC_KERNEL_SR << ADDR_SR_SHIFT)) 85 86 /* map PIE into approximately the first quarter of user va space */ 87 #define VM_PIE_MIN_ADDR PAGE_SIZE 88 #define VM_PIE_MAX_ADDR 0x40000000 89 90 #define VM_KERN_ADDRESS_SIZE (PPC_SEGMENT_LENGTH - (32 * 1024 * 1024)) 91 #define VM_MAX_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + VM_KERN_ADDRESS_SIZE) 92 93 #define VM_PHYS_SIZE (USRIOSIZE * PAGE_SIZE) 94 95 #define VM_PHYSSEG_MAX 32 /* actually we could have this many segments */ 96 #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 97 #define VM_PHYSSEG_NOADD /* can't add RAM after vm_mem_init */ 98 99 #endif 100