tlsb.c revision 1.7
1 /* $NetBSD: tlsb.c,v 1.7 1998/01/12 10:21:24 thorpej 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 1.7 1998/01/12 10:21:24 thorpej 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 int cpu_node_id; 61 62 #define KV(_addr) ((caddr_t)ALPHA_PHYS_TO_K0SEG((_addr))) 63 64 static int tlsbmatch __P((struct device *, struct cfdata *, void *)); 65 static void tlsbattach __P((struct device *, struct device *, void *)); 66 67 struct cfattach tlsb_ca = { 68 sizeof (struct device), tlsbmatch, tlsbattach 69 }; 70 71 extern struct cfdriver tlsb_cd; 72 73 static int tlsbprint __P((void *, const char *)); 74 static int tlsbsubmatch __P((struct device *, struct cfdata *, void *)); 75 static char *tlsb_node_type_str __P((u_int32_t)); 76 77 static int 78 tlsbprint(aux, cp) 79 void *aux; 80 const char *cp; 81 { 82 struct tlsb_dev_attach_args *tap = aux; 83 printf(" node %d: %s", tap->ta_node, 84 tlsb_node_type_str(tap->ta_dtype)); 85 return (UNCONF); 86 } 87 88 static int 89 tlsbsubmatch(parent, cf, aux) 90 struct device *parent; 91 struct cfdata *cf; 92 void *aux; 93 { 94 struct tlsb_dev_attach_args *tap = aux; 95 if (tap->ta_name != tlsb_cd.cd_name) 96 return (0); 97 if (cf->cf_loc[TLSBCF_NODE] != TLSBCF_NODE_DEFAULT && 98 cf->cf_loc[TLSBCF_NODE] != tap->ta_node) 99 return (0); 100 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 101 } 102 103 static int 104 tlsbmatch(parent, cf, aux) 105 struct device *parent; 106 struct cfdata *cf; 107 void *aux; 108 { 109 struct confargs *ca = aux; 110 111 /* Make sure we're looking for a TurboLaser. */ 112 if (strcmp(ca->ca_name, tlsb_cd.cd_name) != 0) 113 return (0); 114 115 /* 116 * Only one instance of TurboLaser allowed, 117 * and only available on 21000 processor type 118 * platforms. 119 */ 120 if ((cputype != ST_DEC_21000) || (cf->cf_unit != 0)) 121 return (0); 122 123 return (1); 124 } 125 126 static void 127 tlsbattach(parent, self, aux) 128 struct device *parent; 129 struct device *self; 130 void *aux; 131 { 132 extern struct cfdriver cpu_cd; 133 struct tlsb_dev_attach_args ta; 134 u_int32_t tldev; 135 u_int8_t vid; 136 int node; 137 struct tlsb_cpu_busdep *tcpu; 138 struct cfdriver *cfd = &cpu_cd; 139 140 printf("\n"); 141 142 /* 143 * Attempt to find all devices on the bus, including 144 * CPUs, memory modules, and I/O modules. 145 */ 146 147 /* 148 * Sigh. I would like to just start off nicely, 149 * but I need to treat I/O modules differently- 150 * The highest priority I/O node has to be in 151 * node #8, and I want to find it *first*, since 152 * it will have the primary disks (most likely) 153 * on it. 154 */ 155 for (node = 0; node <= TLSB_NODE_MAX; ++node) { 156 /* 157 * Check for invalid address. This may not really 158 * be necessary, but what the heck... 159 */ 160 if (badaddr(TLSB_NODE_REG_ADDR(node, TLDEV), sizeof(u_int32_t))) 161 continue; 162 tldev = TLSB_GET_NODEREG(node, TLDEV); 163 if (tldev == 0) { 164 /* Nothing at this node. */ 165 continue; 166 } 167 if (TLDEV_ISIOPORT(tldev)) 168 continue; /* not interested right now */ 169 ta.ta_name = tlsb_cd.cd_name; 170 ta.ta_node = node; 171 ta.ta_dtype = TLDEV_DTYPE(tldev); 172 ta.ta_swrev = TLDEV_SWREV(tldev); 173 ta.ta_hwrev = TLDEV_HWREV(tldev); 174 175 /* 176 * Deal with hooking CPU instances to TurboLaser nodes. 177 */ 178 if (TLDEV_ISCPU(tldev)) { 179 printf("%s node %d: %s", self->dv_xname, 180 node, tlsb_node_type_str(tldev)); 181 182 /* 183 * Hook in the first CPU unit. 184 */ 185 vid = (TLSB_GET_NODEREG(node, TLVID) & 186 TLVID_VIDA_MASK) >> TLVID_VIDA_SHIFT; 187 188 if ((tcpu = malloc(sizeof(struct tlsb_cpu_busdep), 189 M_DEVBUF, M_NOWAIT)) == NULL) 190 panic("\nno memory for cpu busdep info"); 191 192 tcpu->tcpu_vid = vid; 193 tcpu->tcpu_node = node; 194 cpu_node_id = node; 195 printf(", VID %d -> %s", tcpu->tcpu_vid, cfd->cd_name); 196 197 /* 198 * Do 2nd CPU (if available) here. 199 */ 200 printf("\n"); 201 TLSB_PUT_NODEREG(node, TLCPUMASK, (1<<vid)); 202 203 /* 204 * XXX: Check to make sure that INTRMASK has ints 205 * XXX: enabled for this CPU. 206 */ 207 } 208 /* 209 * Attach any children nodes, including a CPU's GBus 210 */ 211 config_found_sm(self, &ta, tlsbprint, tlsbsubmatch); 212 } 213 /* 214 * *Now* search for I/O nodes (in descending order) 215 */ 216 while (--node > 0) { 217 if (badaddr(TLSB_NODE_REG_ADDR(node, TLDEV), sizeof(u_int32_t))) 218 continue; 219 tldev = TLSB_GET_NODEREG(node, TLDEV); 220 if (tldev == 0) { 221 continue; 222 } 223 if (TLDEV_ISIOPORT(tldev)) { 224 ta.ta_name = tlsb_cd.cd_name; 225 ta.ta_node = node; 226 ta.ta_dtype = TLDEV_DTYPE(tldev); 227 ta.ta_swrev = TLDEV_SWREV(tldev); 228 ta.ta_hwrev = TLDEV_HWREV(tldev); 229 config_found_sm(self, &ta, tlsbprint, tlsbsubmatch); 230 } 231 } 232 } 233 234 static char * 235 tlsb_node_type_str(dtype) 236 u_int32_t dtype; 237 { 238 static char tlsb_line[64]; 239 240 switch (dtype & TLDEV_DTYPE_MASK) { 241 case TLDEV_DTYPE_KFTHA: 242 return ("KFTHA I/O interface"); 243 244 case TLDEV_DTYPE_KFTIA: 245 return ("KFTIA I/O interface"); 246 247 case TLDEV_DTYPE_MS7CC: 248 return ("MS7CC Memory Module"); 249 250 case TLDEV_DTYPE_SCPU4: 251 return ("Single CPU, 4MB cache"); 252 253 case TLDEV_DTYPE_SCPU16: 254 return ("Single CPU, 16MB cache"); 255 256 case TLDEV_DTYPE_DCPU4: 257 return ("Dual CPU, 4MB cache"); 258 259 case TLDEV_DTYPE_DCPU16: 260 return ("Dual CPU, 16MB cache"); 261 262 default: 263 bzero(tlsb_line, sizeof(tlsb_line)); 264 sprintf(tlsb_line, "unknown, dtype 0x%x", dtype); 265 return (tlsb_line); 266 } 267 /* NOTREACHED */ 268 } 269
Indexes created Mon Sep 29 03:10:08 GMT 2025