tlsb.c revision 1.6
1 /* $NetBSD: tlsb.c,v 1.6 1997/09/02 13:20:50 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 1.6 1997/09/02 13:20:50 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 extern struct cfdriver cpu_cd; 62 63 #define KV(_addr) ((caddr_t)ALPHA_PHYS_TO_K0SEG((_addr))) 64 65 static int tlsbmatch __P((struct device *, struct cfdata *, void *)); 66 static void tlsbattach __P((struct device *, struct device *, void *)); 67 struct cfattach tlsb_ca = { 68 sizeof (struct device), tlsbmatch, tlsbattach 69 }; 70 71 struct cfdriver tlsb_cd = { 72 NULL, "tlsb", DV_DULL, 73 }; 74 75 static int tlsbprint __P((void *, const char *)); 76 static int tlsbsubmatch __P((struct device *, struct cfdata *, void *)); 77 static char *tlsb_node_type_str __P((u_int32_t)); 78 79 static int 80 tlsbprint(aux, cp) 81 void *aux; 82 const char *cp; 83 { 84 struct tlsb_dev_attach_args *tap = aux; 85 printf(" node %d: %s", tap->ta_node, 86 tlsb_node_type_str(tap->ta_dtype)); 87 return (UNCONF); 88 } 89 90 static int 91 tlsbsubmatch(parent, cf, aux) 92 struct device *parent; 93 struct cfdata *cf; 94 void *aux; 95 { 96 struct tlsb_dev_attach_args *tap = aux; 97 if (tap->ta_name != tlsb_cd.cd_name) 98 return (0); 99 if (cf->cf_loc[TLSBCF_NODE] != TLSBCF_NODE_DEFAULT && 100 cf->cf_loc[TLSBCF_NODE] != tap->ta_node) 101 return (0); 102 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 103 } 104 105 static int 106 tlsbmatch(parent, cf, aux) 107 struct device *parent; 108 struct cfdata *cf; 109 void *aux; 110 { 111 struct confargs *ca = aux; 112 113 /* Make sure we're looking for a TurboLaser. */ 114 if (strcmp(ca->ca_name, tlsb_cd.cd_name) != 0) 115 return (0); 116 117 /* 118 * Only one instance of TurboLaser allowed, 119 * and only available on 21000 processor type 120 * platforms. 121 */ 122 if ((cputype != ST_DEC_21000) || (cf->cf_unit != 0)) 123 return (0); 124 125 return (1); 126 } 127 128 static void 129 tlsbattach(parent, self, aux) 130 struct device *parent; 131 struct device *self; 132 void *aux; 133 { 134 struct tlsb_dev_attach_args ta; 135 u_int32_t tldev; 136 u_int8_t vid; 137 int node; 138 struct tlsb_cpu_busdep *tcpu; 139 struct cfdriver *cfd = &cpu_cd; 140 141 printf("\n"); 142 143 /* 144 * Attempt to find all devices on the bus, including 145 * CPUs, memory modules, and I/O modules. 146 */ 147 148 /* 149 * Sigh. I would like to just start off nicely, 150 * but I need to treat I/O modules differently- 151 * The highest priority I/O node has to be in 152 * node #8, and I want to find it *first*, since 153 * it will have the primary disks (most likely) 154 * on it. 155 */ 156 for (node = 0; node <= TLSB_NODE_MAX; ++node) { 157 /* 158 * Check for invalid address. This may not really 159 * be necessary, but what the heck... 160 */ 161 if (badaddr(TLSB_NODE_REG_ADDR(node, TLDEV), sizeof(u_int32_t))) 162 continue; 163 tldev = TLSB_GET_NODEREG(node, TLDEV); 164 if (tldev == 0) { 165 /* Nothing at this node. */ 166 continue; 167 } 168 if (TLDEV_ISIOPORT(tldev)) 169 continue; /* not interested right now */ 170 ta.ta_name = tlsb_cd.cd_name; 171 ta.ta_node = node; 172 ta.ta_dtype = TLDEV_DTYPE(tldev); 173 ta.ta_swrev = TLDEV_SWREV(tldev); 174 ta.ta_hwrev = TLDEV_HWREV(tldev); 175 176 /* 177 * Deal with hooking CPU instances to TurboLaser nodes. 178 */ 179 if (TLDEV_ISCPU(tldev)) { 180 printf("%s node %d: %s", self->dv_xname, 181 node, tlsb_node_type_str(tldev)); 182 183 /* 184 * Hook in the first CPU unit. 185 */ 186 vid = (TLSB_GET_NODEREG(node, TLVID) & 187 TLVID_VIDA_MASK) >> TLVID_VIDA_SHIFT; 188 189 if ((tcpu = malloc(sizeof(struct tlsb_cpu_busdep), 190 M_DEVBUF, M_NOWAIT)) == NULL) 191 panic("\nno memory for cpu busdep info"); 192 193 tcpu->tcpu_vid = vid; 194 tcpu->tcpu_node = node; 195 cpu_node_id = node; 196 printf(", VID %d -> %s", tcpu->tcpu_vid, cfd->cd_name); 197 198 /* 199 * Do 2nd CPU (if available) here. 200 */ 201 printf("\n"); 202 TLSB_PUT_NODEREG(node, TLCPUMASK, (1<<vid)); 203 204 /* 205 * XXX: Check to make sure that INTRMASK has ints 206 * XXX: enabled for this CPU. 207 */ 208 } 209 /* 210 * Attach any children nodes, including a CPU's GBus 211 */ 212 config_found_sm(self, &ta, tlsbprint, tlsbsubmatch); 213 } 214 /* 215 * *Now* search for I/O nodes (in descending order) 216 */ 217 while (--node > 0) { 218 if (badaddr(TLSB_NODE_REG_ADDR(node, TLDEV), sizeof(u_int32_t))) 219 continue; 220 tldev = TLSB_GET_NODEREG(node, TLDEV); 221 if (tldev == 0) { 222 continue; 223 } 224 if (TLDEV_ISIOPORT(tldev)) { 225 ta.ta_name = tlsb_cd.cd_name; 226 ta.ta_node = node; 227 ta.ta_dtype = TLDEV_DTYPE(tldev); 228 ta.ta_swrev = TLDEV_SWREV(tldev); 229 ta.ta_hwrev = TLDEV_HWREV(tldev); 230 config_found_sm(self, &ta, tlsbprint, tlsbsubmatch); 231 } 232 } 233 } 234 235 static char * 236 tlsb_node_type_str(dtype) 237 u_int32_t dtype; 238 { 239 static char tlsb_line[64]; 240 241 switch (dtype & TLDEV_DTYPE_MASK) { 242 case TLDEV_DTYPE_KFTHA: 243 return ("KFTHA I/O interface"); 244 245 case TLDEV_DTYPE_KFTIA: 246 return ("KFTIA I/O interface"); 247 248 case TLDEV_DTYPE_MS7CC: 249 return ("MS7CC Memory Module"); 250 251 case TLDEV_DTYPE_SCPU4: 252 return ("Single CPU, 4MB cache"); 253 254 case TLDEV_DTYPE_SCPU16: 255 return ("Single CPU, 16MB cache"); 256 257 case TLDEV_DTYPE_DCPU4: 258 return ("Dual CPU, 4MB cache"); 259 260 case TLDEV_DTYPE_DCPU16: 261 return ("Dual CPU, 16MB cache"); 262 263 default: 264 bzero(tlsb_line, sizeof(tlsb_line)); 265 sprintf(tlsb_line, "unknown, dtype 0x%x", dtype); 266 return (tlsb_line); 267 } 268 /* NOTREACHED */ 269 } 270
Indexes created Mon Oct 13 21:09:55 GMT 2025