/* $NetBSD: vmparam.h,v 1.20 2018/08/03 11:18:22 reinoud Exp $ */ /*- * Copyright (c) 2007 Jared D. McNeill * All rights reserved. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 THE FOUNDATION OR CONTRIBUTORS * 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 _ARCH_USERMODE_INCLUDE_VMPARAM_H #define _ARCH_USERMODE_INCLUDE_VMPARAM_H #include #include "opt_memsize.h" #define __USE_TOPDOWN_VM extern paddr_t kmem_k_start, kmem_k_end; extern paddr_t kmem_kvm_start, kmem_kvm_end; extern paddr_t kmem_kvm_cur_end; extern paddr_t kmem_user_start, kmem_user_end; #define VM_MIN_ADDRESS kmem_user_start #define VM_MAX_ADDRESS kmem_user_end #define VM_MAXUSER_ADDRESS kmem_user_end #define VM_MIN_KERNEL_ADDRESS kmem_kvm_start #define VM_MAX_KERNEL_ADDRESS kmem_k_end #define VM_PHYSSEG_STRAT VM_PSTRAT_BIGFIRST #define VM_PHYSSEG_MAX 1 #define VM_NFREELIST 1 #define VM_FREELIST_DEFAULT 0 #define USRSTACK VM_MAXUSER_ADDRESS /* * When an architecture has little KVA then override the default pager_map * size in its block by limiting it like this: * * #define PAGER_MAP_DEFAULT_SIZE (8 * 1024 * 1024) */ #if defined(__i386__) #define PAGE_SHIFT 12 #define PAGE_SIZE (1 << PAGE_SHIFT) #define PAGE_MASK (PAGE_SIZE - 1) #define MAXSSIZ (64 * 1024 * 1024) #define MAXTSIZ (64 * 1024 * 1024) #define MAXDSIZ (3U * 1024 * 1024 * 1024) #define DFLSSIZ (2 * 1024 * 1024) #define DFLDSIZ (256 * 1024 * 1024) #elif defined(__x86_64__) #define PAGE_SHIFT 12 #define PAGE_SIZE (1 << PAGE_SHIFT) #define PAGE_MASK (PAGE_SIZE - 1) #define MAXSSIZ (128 * 1024 * 1024) #define MAXTSIZ (64 * 1024 * 1024) #define MAXDSIZ (8L * 1024 * 1024 * 1024) #define DFLSSIZ (4 * 1024 * 1024) #define DFLDSIZ (256 * 1024 * 1024) #elif defined(__arm__) #define PAGE_SHIFT 12 #define PAGE_SIZE (1 << PAGE_SHIFT) #define PAGE_MASK (PAGE_SIZE - 1) #define MAXSSIZ (64 * 1024 * 1024) #define MAXTSIZ (64 * 1024 * 1024) #define MAXDSIZ (3U * 1024 * 1024 * 1024) #define DFLSSIZ (2 * 1024 * 1024) #define DFLDSIZ (256 * 1024 * 1024) #else #error "platform not supported" #endif #endif /* !_ARCH_USERMODE_INCLUDE_VMPARAM_H */