1 /* $NetBSD: mcbusvar.h,v 1.3 1999/04/15 22:19:52 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1998 by Matthew Jacob 5 * NASA AMES Research Center. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice immediately at the beginning of the file, without modification, 13 * this list of conditions, and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 /* 34 * Soft definitions for the MCBUS main system 35 * bus found on AlphaServer 4100 systems. 36 */ 37 38 /* 39 * The structure used to attach devices to the MCbus. 40 */ 41 struct mcbus_dev_attach_args { 42 char * ma_name; /* so things aren't confused */ 43 u_int8_t ma_gid; /* GID of MCBUS (MCBUS #) */ 44 u_int8_t ma_mid; /* Module ID on MCBUS */ 45 u_int8_t ma_type; /* Module "type" */ 46 u_int8_t ma_configured; /* nonzero if configured */ 47 }; 48 #define MCBUS_GID_FROM_INSTANCE(unit) (7 - unit) 49 50 /* 51 * Bus-dependent structure for CPUs. This is dynamically allocated 52 * for each CPU on the MCbus, and glued into the cpu_softc as sc_busdep, 53 * if there is such a beast available. Otherwise, a single global version 54 * is used so that the MCPCIA configuration code can determine toads 55 * like module id and bcache size of the master CPU. 56 */ 57 struct mcbus_cpu_busdep { 58 u_int8_t mcbus_cpu_mid; /* MCbus Module ID */ 59 u_int8_t mcbus_bcache; /* BCache on this CPU */ 60 u_int8_t mcbus_valid; 61 }; 62 63 #define MCBUS_CPU_BCACHE_0MB 0 64 #define MCBUS_CPU_BCACHE_1MB 1 65 #define MCBUS_CPU_BCACHE_4MB 2 66 67 /* 68 * "types" 69 */ 70 #define MCBUS_TYPE_RES 0 71 #define MCBUS_TYPE_UNK 1 72 #define MCBUS_TYPE_MEM 2 73 #define MCBUS_TYPE_CPU 3 74 #define MCBUS_TYPE_PCI 4 75 76 #ifdef _KERNEL 77 extern struct mcbus_cpu_busdep mcbus_primary; 78 extern const int mcbus_mcpcia_probe_order[]; 79 #endif 80