tlsb.c revision 1.3
1 /* $NetBSD: tlsb.c,v 1.3 1997/04/06 20:09:16 cgd 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 <machine/options.h> /* Pull in config options headers */ 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/device.h> 46 #include <sys/malloc.h> 47 48 #include <machine/autoconf.h> 49 #include <machine/rpb.h> 50 #include <machine/pte.h> 51 52 #include <alpha/tlsb/tlsbreg.h> 53 #include <alpha/tlsb/tlsbvar.h> 54 55 extern int cputype; 56 int cpu_node_id; 57 extern struct cfdriver cpu_cd; 58 59 #define KV(_addr) ((caddr_t)ALPHA_PHYS_TO_K0SEG((_addr))) 60 61 static int tlsbmatch __P((struct device *, struct cfdata *, void *)); 62 static void tlsbattach __P((struct device *, struct device *, void *)); 63 struct cfattach tlsb_ca = { 64 sizeof (struct device), tlsbmatch, tlsbattach 65 }; 66 67 struct cfdriver tlsb_cd = { 68 NULL, "tlsb", DV_DULL, 69 }; 70 71 static int tlsbprint __P((void *, const char *)); 72 static int tlsbsubmatch __P((struct device *, struct cfdata *, void *)); 73 static char *tlsb_node_type_str __P((u_int32_t)); 74 75 static int 76 tlsbprint(aux, cp) 77 void *aux; 78 const char *cp; 79 { 80 struct tlsb_dev_attach_args *tap = aux; 81 printf(" node %d: %s", tap->ta_node, 82 tlsb_node_type_str(tap->ta_dtype)); 83 return (UNCONF); 84 } 85 86 static int 87 tlsbsubmatch(parent, cf, aux) 88 struct device *parent; 89 struct cfdata *cf; 90 void *aux; 91 { 92 struct tlsb_dev_attach_args *tap = aux; 93 if (tap->ta_name != tlsb_cd.cd_name) 94 return (0); 95 if ((cf->cf_loc[0] != -1) && (cf->cf_loc[0] != tap->ta_node)) 96 return (0); 97 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 98 } 99 100 static int 101 tlsbmatch(parent, cf, aux) 102 struct device *parent; 103 struct cfdata *cf; 104 void *aux; 105 { 106 struct confargs *ca = aux; 107 108 /* Make sure we're looking for a TurboLaser. */ 109 if (strcmp(ca->ca_name, tlsb_cd.cd_name) != 0) 110 return (0); 111 112 /* 113 * Only one instance of TurboLaser allowed, 114 * and only available on 21000 processor type 115 * platforms. 116 */ 117 if ((cputype != ST_DEC_21000) || (cf->cf_unit != 0)) 118 return (0); 119 120 return (1); 121 } 122 123 static void 124 tlsbattach(parent, self, aux) 125 struct device *parent; 126 struct device *self; 127 void *aux; 128 { 129 struct tlsb_dev_attach_args ta; 130 u_int32_t tldev; 131 u_int8_t vid; 132 int node; 133 struct tlsb_cpu_busdep *tcpu; 134 struct cfdriver *cfd = &cpu_cd; 135 136 printf("\n"); 137 138 /* 139 * Attempt to find all devices on the bus, including 140 * CPUs, memory modules, and I/O modules. 141 */ 142 143 /* 144 * Sigh. I would like to just start off nicely, 145 * but I need to treat I/O modules differently- 146 * The highest priority I/O node has to be in 147 * node #8, and I want to find it *first*, since 148 * it will have the primary disks (most likely) 149 * on it. 150 */ 151 for (node = 0; node <= TLSB_NODE_MAX; ++node) { 152 /* 153 * Check for invalid address. This may not really 154 * be necessary, but what the heck... 155 */ 156 if (badaddr(TLSB_NODE_REG_ADDR(node, TLDEV), sizeof(u_int32_t))) 157 continue; 158 tldev = TLSB_GET_NODEREG(node, TLDEV); 159 if (tldev == 0) { 160 /* Nothing at this node. */ 161 continue; 162 } 163 if (TLDEV_ISIOPORT(tldev)) 164 continue; /* not interested right now */ 165 ta.ta_name = tlsb_cd.cd_name; 166 ta.ta_node = node; 167 ta.ta_dtype = TLDEV_DTYPE(tldev); 168 ta.ta_swrev = TLDEV_SWREV(tldev); 169 ta.ta_hwrev = TLDEV_HWREV(tldev); 170 171 /* 172 * Deal with hooking CPU instances to TurboLaser nodes. 173 */ 174 if (TLDEV_ISCPU(tldev)) { 175 printf("%s node %d: %s", self->dv_xname, 176 node, tlsb_node_type_str(tldev)); 177 178 /* 179 * Hook in the first CPU unit. 180 */ 181 vid = (TLSB_GET_NODEREG(node, TLVID) & 182 TLVID_VIDA_MASK) >> TLVID_VIDA_SHIFT; 183 184 if ((tcpu = malloc(sizeof(struct tlsb_cpu_busdep), 185 M_DEVBUF, M_NOWAIT)) == NULL) 186 panic("\nno memory for cpu busdep info"); 187 188 tcpu->tcpu_vid = vid; 189 tcpu->tcpu_node = node; 190 cpu_node_id = node; 191 printf(", VID %d -> %s", tcpu->tcpu_vid, cfd->cd_name); 192 193 /* 194 * Do 2nd CPU (if available) here. 195 */ 196 printf("\n"); 197 TLSB_PUT_NODEREG(node, TLCPUMASK, (1<<vid)); 198 199 /* 200 * XXX: Check to make sure that INTRMASK has ints 201 * XXX: enabled for this CPU. 202 */ 203 } 204 /* 205 * Attach any children nodes, including a CPU's GBus 206 */ 207 config_found_sm(self, &ta, tlsbprint, tlsbsubmatch); 208 } 209 /* 210 * *Now* search for I/O nodes (in descending order) 211 */ 212 while (--node > 0) { 213 if (badaddr(TLSB_NODE_REG_ADDR(node, TLDEV), sizeof(u_int32_t))) 214 continue; 215 tldev = TLSB_GET_NODEREG(node, TLDEV); 216 if (tldev == 0) { 217 continue; 218 } 219 if (TLDEV_ISIOPORT(tldev)) { 220 ta.ta_name = tlsb_cd.cd_name; 221 ta.ta_node = node; 222 ta.ta_dtype = TLDEV_DTYPE(tldev); 223 ta.ta_swrev = TLDEV_SWREV(tldev); 224 ta.ta_hwrev = TLDEV_HWREV(tldev); 225 config_found_sm(self, &ta, tlsbprint, tlsbsubmatch); 226 } 227 } 228 } 229 230 static char * 231 tlsb_node_type_str(dtype) 232 u_int32_t dtype; 233 { 234 static char tlsb_line[64]; 235 236 switch (dtype & TLDEV_DTYPE_MASK) { 237 case TLDEV_DTYPE_KFTHA: 238 return ("KFTHA I/O interface"); 239 240 case TLDEV_DTYPE_KFTIA: 241 return ("KFTIA I/O interface"); 242 243 case TLDEV_DTYPE_MS7CC: 244 return ("MS7CC Memory Module"); 245 246 case TLDEV_DTYPE_SCPU4: 247 return ("Single CPU, 4MB cache"); 248 249 case TLDEV_DTYPE_SCPU16: 250 return ("Single CPU, 16MB cache"); 251 252 case TLDEV_DTYPE_DCPU4: 253 return ("Dual CPU, 4MB cache"); 254 255 case TLDEV_DTYPE_DCPU16: 256 return ("Dual CPU, 16MB cache"); 257 258 default: 259 bzero(tlsb_line, sizeof(tlsb_line)); 260 sprintf(tlsb_line, "unknown, dtype 0x%x", dtype); 261 return (tlsb_line); 262 } 263 /* NOTREACHED */ 264 } 265
Indexes created Mon Sep 29 21:09:56 GMT 2025