1 1.38 tsutsui /* $NetBSD: vmparam.h,v 1.38 2020/02/01 19:41:50 tsutsui Exp $ */ 2 1.9 cgd 3 1.20 gwr /*- 4 1.20 gwr * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 1.7 glass * All rights reserved. 6 1.7 glass * 7 1.7 glass * Redistribution and use in source and binary forms, with or without 8 1.7 glass * modification, are permitted provided that the following conditions 9 1.7 glass * are met: 10 1.7 glass * 1. Redistributions of source code must retain the above copyright 11 1.7 glass * notice, this list of conditions and the following disclaimer. 12 1.7 glass * 2. Redistributions in binary form must reproduce the above copyright 13 1.7 glass * notice, this list of conditions and the following disclaimer in the 14 1.7 glass * documentation and/or other materials provided with the distribution. 15 1.20 gwr * 16 1.20 gwr * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 1.20 gwr * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 1.20 gwr * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 1.20 gwr * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 1.20 gwr * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 1.20 gwr * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 1.20 gwr * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 1.20 gwr * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 1.20 gwr * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 1.20 gwr * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 1.20 gwr * POSSIBILITY OF SUCH DAMAGE. 27 1.20 gwr */ 28 1.26 thorpej 29 1.30 chs #ifndef _SUN3_VMPARAM_H_ 30 1.30 chs #define _SUN3_VMPARAM_H_ 1 31 1.30 chs 32 1.37 chs #define __USE_TOPDOWN_VM 33 1.37 chs 34 1.26 thorpej /* 35 1.38 tsutsui * Use common m68k definitions to define PAGE_SIZE and related constants. 36 1.26 thorpej */ 37 1.38 tsutsui #include <m68k/vmparam.h> 38 1.20 gwr 39 1.35 tsutsui #define USRSTACK kernbase /* for modules */ 40 1.35 tsutsui #define USRSTACK3 KERNBASE3 /* for asm not in modules */ 41 1.35 tsutsui #define USRSTACK3X KERNBASE3X 42 1.34 pooka 43 1.20 gwr #ifdef _SUN3_ 44 1.20 gwr #include <machine/vmparam3.h> 45 1.20 gwr #endif /* SUN3 */ 46 1.20 gwr #ifdef _SUN3X_ 47 1.20 gwr #include <machine/vmparam3x.h> 48 1.20 gwr #endif /* SUN3X */ 49 1.34 pooka 50 1.34 pooka /* default for modules etc. */ 51 1.34 pooka #if !defined(_SUN3_) && !defined(_SUN3X_) 52 1.34 pooka #include <machine/vmparam3.h> 53 1.34 pooka #endif 54 1.34 pooka 55 1.35 tsutsui /* 56 1.35 tsutsui * PTEs for mapping user space into the kernel for phyio operations. 57 1.35 tsutsui * The actual limitation for physio requests will be the DVMA space, 58 1.35 tsutsui * and that is fixed by hardware design at 1MB. We could make the 59 1.35 tsutsui * physio map larger than that, but it would not buy us much. 60 1.35 tsutsui */ 61 1.35 tsutsui #ifndef USRIOSIZE 62 1.35 tsutsui #define USRIOSIZE 128 /* 1 MB */ 63 1.27 jmc #endif 64 1.21 gwr 65 1.22 gwr /* This is needed by some LKMs. */ 66 1.22 gwr #define VM_PHYSSEG_MAX 4 67 1.30 chs 68 1.30 chs /* 69 1.30 chs * Mach-derived constants: 70 1.30 chs */ 71 1.30 chs 72 1.30 chs /* user/kernel map constants */ 73 1.30 chs #define VM_MIN_ADDRESS ((vaddr_t)0) 74 1.35 tsutsui #define VM_MAX_ADDRESS kernbase 75 1.35 tsutsui #define VM_MAXUSER_ADDRESS kernbase 76 1.35 tsutsui #define VM_MIN_KERNEL_ADDRESS kernbase 77 1.35 tsutsui #define VM_MAX_KERNEL_ADDRESS kern_end 78 1.30 chs 79 1.30 chs /* virtual sizes (bytes) for various kernel submaps */ 80 1.32 thorpej #define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE) 81 1.30 chs 82 1.30 chs #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 83 1.30 chs 84 1.30 chs #define VM_NFREELIST 1 85 1.30 chs #define VM_FREELIST_DEFAULT 0 86 1.30 chs 87 1.30 chs #endif /* _SUN3_VMPARAM_H_ */ 88
Indexes created Sun Sep 21 20:09:37 GMT 2025