tlsb.c revision 1.8
1 /* $NetBSD: tlsb.c,v 1.8 1998/04/15 00:51:00 mjacob Exp $ */ 2 3 /* 4 * Copyright (c) 1997 by Matthew Jacob 5 * NASA AMES Research Center. 6 * All rights reserved. 7 * 8 * Based in part upon a prototype version by Jason Thorpe 9 * Copyright (c) 1996 by Jason Thorpe. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice immediately at the beginning of the file, without modification, 16 * this list of conditions, and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 27 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 /* 37 * Autoconfiguration and support routines for the TurboLaser System Bus 38 * found on AlphaServer 8200 and 8400 systems. 39 */ 40 41 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 42 43 __KERNEL_RCSID(0, "$NetBSD: tlsb.c,v 1.8 1998/04/15 00:51:00 mjacob Exp $"); 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/device.h> 48 #include <sys/malloc.h> 49 50 #include <machine/autoconf.h> 51 #include <machine/rpb.h> 52 #include <machine/pte.h> 53 54 #include <alpha/tlsb/tlsbreg.h> 55 #include <alpha/tlsb/tlsbvar.h> 56 57 #include "locators.h" 58 59 extern int cputype; 60 61 #define KV(_addr) ((caddr_t)ALPHA_PHYS_TO_K0SEG((_addr))) 62 63 static int tlsbmatch __P((struct device *, struct cfdata *, void *)); 64 static void tlsbattach __P((struct device *, struct device *, void *)); 65 66 struct cfattach tlsb_ca = { 67 sizeof (struct device), tlsbmatch, tlsbattach 68 }; 69 70 extern struct cfdriver tlsb_cd; 71 72 static int tlsbprint __P((void *, const char *)); 73 static int tlsbsubmatch __P((struct device *, struct cfdata *, void *)); 74 static char *tlsb_node_type_str __P((u_int32_t)); 75 76 static int 77 tlsbprint(aux, cp) 78 void *aux; 79 const char *cp; 80 { 81 struct tlsb_dev_attach_args *tap = aux; 82 printf(" node %d: %s", tap->ta_node, 83 tlsb_node_type_str(tap->ta_dtype)); 84 return (UNCONF); 85 } 86 87 static int 88 tlsbsubmatch(parent, cf, aux) 89 struct device *parent; 90 struct cfdata *cf; 91 void *aux; 92 { 93 struct tlsb_dev_attach_args *tap = aux; 94 if (tap->ta_name != tlsb_cd.cd_name) 95 return (0); 96 if (cf->cf_loc[TLSBCF_NODE] != TLSBCF_NODE_DEFAULT && 97 cf->cf_loc[TLSBCF_NODE] != tap->ta_node) 98 return (0); 99 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 100 } 101 102 static int 103 tlsbmatch(parent, cf, aux) 104 struct device *parent; 105 struct cfdata *cf; 106 void *aux; 107 { 108 struct confargs *ca = aux; 109 110 /* Make sure we're looking for a TurboLaser. */ 111 if (strcmp(ca->ca_name, tlsb_cd.cd_name) != 0) 112 return (0); 113 114 /* 115 * Only one instance of TurboLaser allowed, 116 * and only available on 21000 processor type 117 * platforms. 118 */ 119 if ((cputype != ST_DEC_21000) || (cf->cf_unit != 0)) 120 return (0); 121 122 return (1); 123 } 124 125 static void 126 tlsbattach(parent, self, aux) 127 struct device *parent; 128 struct device *self; 129 void *aux; 130 { 131 extern struct cfdriver cpu_cd; 132 struct tlsb_dev_attach_args ta; 133 u_int32_t tldev; 134 u_int8_t vid; 135 int node; 136 struct cfdriver *cfd = &cpu_cd; 137 138 printf("\n"); 139 140 /* 141 * Attempt to find all devices on the bus, including 142 * CPUs, memory modules, and I/O modules. 143 */ 144 145 /* 146 * Sigh. I would like to just start off nicely, 147 * but I need to treat I/O modules differently- 148 * The highest priority I/O node has to be in 149 * node #8, and I want to find it *first*, since 150 * it will have the primary disks (most likely) 151 * on it. 152 */ 153 for (node = 0; node <= TLSB_NODE_MAX; ++node) { 154 /* 155 * Check for invalid address. This may not really 156 * be necessary, but what the heck... 157 */ 158 if (badaddr(TLSB_NODE_REG_ADDR(node, TLDEV), sizeof(u_int32_t))) 159 continue; 160 tldev = TLSB_GET_NODEREG(node, TLDEV); 161 if (tldev == 0) { 162 /* Nothing at this node. */ 163 continue; 164 } 165 if (TLDEV_ISIOPORT(tldev)) 166 continue; /* not interested right now */ 167 ta.ta_name = tlsb_cd.cd_name; 168 ta.ta_node = node; 169 ta.ta_dtype = TLDEV_DTYPE(tldev); 170 ta.ta_swrev = TLDEV_SWREV(tldev); 171 ta.ta_hwrev = TLDEV_HWREV(tldev); 172 173 /* 174 * Deal with hooking CPU instances to TurboLaser nodes. 175 */ 176 if (TLDEV_ISCPU(tldev)) { 177 printf("%s node %d: %s", self->dv_xname, 178 node, tlsb_node_type_str(tldev)); 179 180 /* 181 * Hook in the first CPU unit. 182 */ 183 vid = (TLSB_GET_NODEREG(node, TLVID) & 184 TLVID_VIDA_MASK) >> TLVID_VIDA_SHIFT; 185 printf(", VID %d -> %s", vid, cfd->cd_name); 186 printf("\n"); 187 TLSB_PUT_NODEREG(node, TLCPUMASK, (1<<vid)); 188 } 189 /* 190 * Attach any children nodes, including a CPU's GBus 191 */ 192 config_found_sm(self, &ta, tlsbprint, tlsbsubmatch); 193 } 194 /* 195 * *Now* search for I/O nodes (in descending order) 196 */ 197 while (--node > 0) { 198 if (badaddr(TLSB_NODE_REG_ADDR(node, TLDEV), sizeof(u_int32_t))) 199 continue; 200 tldev = TLSB_GET_NODEREG(node, TLDEV); 201 if (tldev == 0) { 202 continue; 203 } 204 if (TLDEV_ISIOPORT(tldev)) { 205 ta.ta_name = tlsb_cd.cd_name; 206 ta.ta_node = node; 207 ta.ta_dtype = TLDEV_DTYPE(tldev); 208 ta.ta_swrev = TLDEV_SWREV(tldev); 209 ta.ta_hwrev = TLDEV_HWREV(tldev); 210 config_found_sm(self, &ta, tlsbprint, tlsbsubmatch); 211 } 212 } 213 } 214 215 static char * 216 tlsb_node_type_str(dtype) 217 u_int32_t dtype; 218 { 219 static char tlsb_line[64]; 220 221 switch (dtype & TLDEV_DTYPE_MASK) { 222 case TLDEV_DTYPE_KFTHA: 223 return ("KFTHA I/O interface"); 224 225 case TLDEV_DTYPE_KFTIA: 226 return ("KFTIA I/O interface"); 227 228 case TLDEV_DTYPE_MS7CC: 229 return ("MS7CC Memory Module"); 230 231 case TLDEV_DTYPE_SCPU4: 232 return ("Single CPU, 4MB cache"); 233 234 case TLDEV_DTYPE_SCPU16: 235 return ("Single CPU, 16MB cache"); 236 237 case TLDEV_DTYPE_DCPU4: 238 return ("Dual CPU, 4MB cache"); 239 240 case TLDEV_DTYPE_DCPU16: 241 return ("Dual CPU, 16MB cache"); 242 243 default: 244 bzero(tlsb_line, sizeof(tlsb_line)); 245 sprintf(tlsb_line, "unknown, dtype 0x%x", dtype); 246 return (tlsb_line); 247 } 248 /* NOTREACHED */ 249 } 250
Indexes created Mon Sep 29 03:10:08 GMT 2025