1 /* $NetBSD: seglist.h,v 1.5 2009/10/23 17:01:08 snj Exp $ */ 2 3 /* 4 * Copyright (c) 1997 The Steve Woodford 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 AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* 29 * The following structure is passed to pmap_bootstrap by the startup 30 * code in locore.s. 31 * It simply describes the start and end addresses of the memory 32 * segments available to the board. 33 * If the offboard RAM segment spans multiple boards, they must be 34 * configured to appear physically contiguous in the VMEbus address 35 * space. 36 * 37 * NOTE: If you change this, you'll need to update locore.s ... 38 */ 39 typedef struct { 40 paddr_t ps_start; /* Start of segment */ 41 paddr_t ps_end; /* End of segment */ 42 int ps_startpage; /* Page number of first page */ 43 } phys_seg_list_t; 44 45 /* Instantiated in machdep.c */ 46 extern phys_seg_list_t phys_seg_list[]; 47