1 /* $NetBSD: vmparam.h,v 1.11 2011/08/26 11:01:32 jmcneill 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 35 #define __USE_TOPDOWN_VM 36 37 extern paddr_t kmem_k_start, kmem_k_end; 38 extern paddr_t kmem_ext_start, kmem_ext_end; 39 extern paddr_t kmem_user_start, kmem_user_end; 40 41 #define VM_MIN_KERNEL_ADDRESS kmem_k_start 42 #define VM_MAX_KERNEL_ADDRESS kmem_k_end 43 #define VM_MIN_ADDRESS kmem_user_start 44 #define VM_MAXUSER_ADDRESS kmem_user_end 45 #define VM_MAX_ADDRESS kmem_ext_end 46 47 #define VM_PHYSSEG_STRAT VM_PSTRAT_BIGFIRST 48 #define VM_PHYSSEG_MAX 1 49 #define VM_NFREELIST 1 50 #define VM_FREELIST_DEFAULT 0 51 52 #define USRSTACK VM_MAXUSER_ADDRESS 53 54 #if defined(__i386__) 55 #define PAGE_SHIFT 12 56 #define PAGE_SIZE (1 << PAGE_SHIFT) 57 #define PAGE_MASK (PAGE_SIZE - 1) 58 #define MAXSSIZ (64 * 1024 * 1024) 59 #define MAXTSIZ (64 * 1024 * 1024) 60 #define MAXDSIZ (3U * 1024 * 1024 * 1024) 61 #define DFLSSIZ (2 * 1024 * 1024) 62 #define DFLDSIZ (256 * 1024 * 1024) 63 #elif defined(__x86_64__) 64 #define PAGE_SHIFT 12 65 #define PAGE_SIZE (1 << PAGE_SHIFT) 66 #define PAGE_MASK (PAGE_SIZE - 1) 67 #define MAXSSIZ (128 * 1024 * 1024) 68 #define MAXTSIZ (64 * 1024 * 1024) 69 #define MAXDSIZ (8L * 1024 * 1024 * 1024) 70 #define DFLSSIZ (4 * 1024 * 1024) 71 #define DFLDSIZ (256 * 1024 * 1024) 72 #else 73 #error "platform not supported" 74 #endif 75 76 #endif /* !_ARCH_USERMODE_INCLUDE_VMPARAM_H */ 77