/* $NetBSD: vmparam.h,v 1.38 2020/02/01 19:41:50 tsutsui Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. * 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 _SUN3_VMPARAM_H_ #define _SUN3_VMPARAM_H_ 1 #define __USE_TOPDOWN_VM /* * Use common m68k definitions to define PAGE_SIZE and related constants. */ #include <m68k/vmparam.h> #define USRSTACK kernbase /* for modules */ #define USRSTACK3 KERNBASE3 /* for asm not in modules */ #define USRSTACK3X KERNBASE3X #ifdef _SUN3_ #include <machine/vmparam3.h> #endif /* SUN3 */ #ifdef _SUN3X_ #include <machine/vmparam3x.h> #endif /* SUN3X */ /* default for modules etc. */ #if !defined(_SUN3_) && !defined(_SUN3X_) #include <machine/vmparam3.h> #endif /* * PTEs for mapping user space into the kernel for phyio operations. * The actual limitation for physio requests will be the DVMA space, * and that is fixed by hardware design at 1MB. We could make the * physio map larger than that, but it would not buy us much. */ #ifndef USRIOSIZE #define USRIOSIZE 128 /* 1 MB */ #endif /* This is needed by some LKMs. */ #define VM_PHYSSEG_MAX 4 /* * Mach-derived constants: */ /* user/kernel map constants */ #define VM_MIN_ADDRESS ((vaddr_t)0) #define VM_MAX_ADDRESS kernbase #define VM_MAXUSER_ADDRESS kernbase #define VM_MIN_KERNEL_ADDRESS kernbase #define VM_MAX_KERNEL_ADDRESS kern_end /* virtual sizes (bytes) for various kernel submaps */ #define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE) #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH #define VM_NFREELIST 1 #define VM_FREELIST_DEFAULT 0 #endif /* _SUN3_VMPARAM_H_ */ |