vmparam.h revision 1.6
1/* $NetBSD: vmparam.h,v 1.6 2011/08/24 10:57:48 reinoud Exp $ */ 2 3/*- 4 * Copyright (c) 2007 Jared D. McNeill <jmcneill@invisible.ca> 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#ifndef _ARCH_USERMODE_INCLUDE_VMPARAM_H 30#define _ARCH_USERMODE_INCLUDE_VMPARAM_H 31 32#include <machine/pmap.h> 33#include "opt_memsize.h" 34 35extern paddr_t kmem_k_start, kmem_k_end; 36extern paddr_t kmem_ext_start, kmem_ext_end; 37extern paddr_t kmem_user_start, kmem_user_end; 38 39#define VM_MIN_KERNEL_ADDRESS kmem_k_start 40#define VM_MAX_KERNEL_ADDRESS kmem_ext_end 41#define VM_MIN_ADDRESS kmem_k_start 42#define VM_MAX_ADDRESS kmem_user_end 43#define VM_MAXUSER_ADDRESS kmem_user_end 44 45#define VM_PHYSSEG_STRAT VM_PSTRAT_BIGFIRST 46#define VM_PHYSSEG_MAX 1 47#define VM_NFREELIST 1 48#define VM_FREELIST_DEFAULT 0 49 50#define USRSTACK VM_MAXUSER_ADDRESS 51 52#if defined(__i386__) 53#define PAGE_SHIFT 12 54#define PAGE_SIZE (1 << PAGE_SHIFT) 55#define PAGE_MASK (PAGE_SIZE - 1) 56#define MAXSSIZ (64 * 1024 * 1024) 57#define MAXTSIZ (64 * 1024 * 1024) 58#define MAXDSIZ (3U * 1024 * 1024 * 1024) 59#define DFLSSIZ (2 * 1024 * 1024) 60#define DFLDSIZ (256 * 1024 * 1024) 61#elif defined(__x86_64__) 62#define PAGE_SHIFT 12 63#define PAGE_SIZE (1 << PAGE_SHIFT) 64#define PAGE_MASK (PAGE_SIZE - 1) 65#define MAXSSIZ (128 * 1024 * 1024) 66#define MAXTSIZ (64 * 1024 * 1024) 67#define MAXDSIZ (8L * 1024 * 1024 * 1024) 68#define DFLSSIZ (4 * 1024 * 1024) 69#define DFLDSIZ (256 * 1024 * 1024) 70#else 71#error "platform not supported" 72#endif 73 74#endif /* !_ARCH_USERMODE_INCLUDE_VMPARAM_H */ 75