1 /* $NetBSD: vmparam.h,v 1.12 2019/03/27 19:30:31 christos Exp $ */ 2 3 /*- 4 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 5 * Copyright (C) 1995, 1996 TooLs GmbH. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by TooLs GmbH. 19 * 4. The name of TooLs GmbH may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #ifndef _POWERPC_IBM4XX_VMPARAM_H_ 35 #define _POWERPC_IBM4XX_VMPARAM_H_ 36 37 /* 38 * We use 16K pages on IBM4xx CPUs. Override the PAGE_* definitions 39 * to be compile-time constants. 40 */ 41 #define PAGE_SHIFT 14 42 #define PAGE_SIZE (1 << PAGE_SHIFT) 43 #define PAGE_MASK (PAGE_SIZE - 1) 44 45 #define USRSTACK VM_MAXUSER_ADDRESS 46 47 #ifndef MAXTSIZ 48 #define MAXTSIZ (64*1024*1024) /* max text size */ 49 #endif 50 51 #ifndef DFLDSIZ 52 #define DFLDSIZ (128*1024*1024) /* default data size */ 53 #endif 54 55 #ifndef MAXDSIZ 56 #define MAXDSIZ (1*1024*1024*1024) /* max data size */ 57 #endif 58 59 #ifndef DFLSSIZ 60 #define DFLSSIZ (2*1024*1024) /* default stack size */ 61 #endif 62 63 #ifndef MAXSSIZ 64 #define MAXSSIZ (32*1024*1024) /* max stack size */ 65 #endif 66 67 /* 68 * Size of User Raw I/O map 69 */ 70 #define USRIOSIZE 1024 71 72 #if 1 73 /* 74 * These definitions give you a 2GB kernel VA space. The other set matches 75 * the way other PPC ports lay out their 256MB kernel address space. 76 */ 77 #define VM_MIN_ADDRESS ((vaddr_t)0) 78 #define VM_MAXUSER_ADDRESS ((vaddr_t)0xffff0000-PAGE_SIZE) 79 #define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS 80 #define VM_MIN_KERNEL_ADDRESS ((vaddr_t)0x80000000) 81 #define VM_MAX_KERNEL_ADDRESS ((vaddr_t)0xef000000) /* before I/O periphs */ 82 #else 83 /* 84 * Would like to have MAX addresses = 0, but this doesn't (currently) work 85 */ 86 #define VM_MIN_ADDRESS ((vaddr_t)0) 87 #define VM_MAXUSER_ADDRESS ((vaddr_t)0x80000000-PAGE_SIZE) 88 #define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS 89 #define VM_MIN_KERNEL_ADDRESS ((vaddr_t)(KERNEL_SR << ADDR_SR_SHFT)) 90 #define VM_MAX_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + SEGMENT_LENGTH - 1) 91 #endif 92 93 #define VM_PHYS_SIZE (USRIOSIZE * PAGE_SIZE) 94 95 #define __HAVE_PMAP_PHYSSEG 96 97 struct pmap_physseg { 98 struct pv_entry *pvent; 99 char *attrs; 100 }; 101 102 #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 103 104 #endif /* _POWERPC_IBM4XX_VMPARAM_H_ */ 105