1 /* $NetBSD: vmparam.h,v 1.13 2002/05/09 12:28:08 uch Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _SH3_VMPARAM_H_ 40 #define _SH3_VMPARAM_H_ 41 #include <sys/queue.h> 42 43 /* Virtual address map. */ 44 #define VM_MIN_ADDRESS ((vaddr_t)0) 45 #define VM_MAXUSER_ADDRESS ((vaddr_t)0x7ffff000) 46 #define VM_MAX_ADDRESS ((vaddr_t)0x7ffff000) 47 #define VM_MIN_KERNEL_ADDRESS ((vaddr_t)0xc0000000) 48 #define VM_MAX_KERNEL_ADDRESS ((vaddr_t)0xe0000000) 49 50 /* User program text start address and top of stack */ 51 #define USRTEXT 0x00001000 52 #define USRSTACK VM_MAXUSER_ADDRESS 53 54 /* Virtual memory resoruce limit. */ 55 #define MAXTSIZ (64 * 1024 * 1024) /* max text size */ 56 #ifndef MAXDSIZ 57 #define MAXDSIZ (512 * 1024 * 1024) /* max data size */ 58 #endif 59 #ifndef MAXSSIZ 60 #define MAXSSIZ (32 * 1024 * 1024) /* max stack size */ 61 #endif 62 63 /* initial data size limit */ 64 #ifndef DFLDSIZ 65 #define DFLDSIZ (128 * 1024 * 1024) 66 #endif 67 /* initial stack size limit */ 68 #ifndef DFLSSIZ 69 #define DFLSSIZ (2 * 1024 * 1024) 70 #endif 71 72 /* 73 * Size of shared memory map 74 */ 75 #ifndef SHMMAXPGS 76 #define SHMMAXPGS 1024 77 #endif 78 79 /* Size of user raw I/O map */ 80 #ifndef USRIOSIZE 81 #define USRIOSIZE (MAXBSIZE / NBPG * 8) 82 #endif 83 84 #define VM_PHYS_SIZE (USRIOSIZE * NBPG) 85 86 /* Physical memory segments */ 87 #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 88 #define VM_PHYSSEG_NOADD 89 90 #define sh3_round_page(x) ((((u_int32_t)(x)) + PGOFSET) & ~PGOFSET) 91 #define sh3_trunc_page(x) ((u_int32_t)(x) & ~PGOFSET) 92 #define sh3_btop(x) ((u_int32_t)(x) >> PGSHIFT) 93 #define sh3_ptob(x) ((u_int32_t)(x) << PGSHIFT) 94 95 /* pmap-specific data store in the vm_page structure. */ 96 #define __HAVE_VM_PAGE_MD 97 #define PVH_REFERENCED 1 98 #define PVH_MODIFIED 2 99 100 #ifndef _LOCORE 101 struct pv_entry; 102 struct vm_page_md { 103 SLIST_HEAD(, pv_entry) pvh_head; 104 int pvh_flags; 105 }; 106 107 #define VM_MDPAGE_INIT(pg) \ 108 do { \ 109 struct vm_page_md *pvh = &(pg)->mdpage; \ 110 SLIST_INIT(&pvh->pvh_head); \ 111 pvh->pvh_flags = 0; \ 112 } while (/*CONSTCOND*/0) 113 #endif /* _LOCORE */ 114 #endif /* !_SH3_VMPARAM_H_ */ 115