/* $NetBSD: vmparam.h,v 1.45.2.1 2020/10/08 18:10:00 martin Exp $ */ /* * Copyright (c) 2001, 2002 Wasabi Systems, Inc. * All rights reserved. * * Written by Jason R. Thorpe for Wasabi Systems, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _ARM_ARM32_VMPARAM_H_ #define _ARM_ARM32_VMPARAM_H_ /* * Virtual Memory parameters common to all arm32 platforms. */ #include #include #include #define __USE_TOPDOWN_VM #define USRSTACK VM_MAXUSER_ADDRESS /* * ARMv4 systems are normaly configured for 256MB KVA only, so restrict * the size of the pager map to 4MB. */ #ifndef _ARM_ARCH_5 #define PAGER_MAP_DEFAULT_SIZE (4 * 1024 * 1024) #endif /* * Note that MAXTSIZ can't be larger than 32M, otherwise the compiler * would have to be changed to not generate "bl" instructions. */ #define MAXTSIZ (128*1024*1024) /* max text size */ #ifndef DFLDSIZ #define DFLDSIZ (384*1024*1024) /* initial data size limit */ #endif #ifndef MAXDSIZ #define MAXDSIZ (1856*1024*1024) /* max data size */ #endif #ifndef DFLSSIZ #define DFLSSIZ (4*1024*1024) /* initial stack size limit */ #endif #ifndef MAXSSIZ #define MAXSSIZ (64*1024*1024) /* max stack size */ #endif /* * While the ARM architecture defines Section mappings, large pages, * and small pages, the standard MMU page size is (and will always be) 4K. */ #define PAGE_SHIFT PGSHIFT #define PAGE_SIZE (1 << PAGE_SHIFT) #define PAGE_MASK (PAGE_SIZE - 1) /* * Mach derived constants */ #define VM_MIN_ADDRESS ((vaddr_t) PAGE_SIZE) #ifdef ARM_MMU_EXTENDED #define VM_MAXUSER_ADDRESS ((vaddr_t) 0x80000000 - PAGE_SIZE) #else #define VM_MAXUSER_ADDRESS ((vaddr_t) KERNEL_BASE - PAGE_SIZE) #endif #define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS #define VM_MIN_KERNEL_ADDRESS ((vaddr_t) KERNEL_BASE) #define VM_MAX_KERNEL_ADDRESS ((vaddr_t) -(PAGE_SIZE+1)) #endif /* _ARM_ARM32_VMPARAM_H_ */