tlsb.c revision 1.4
1 /* $NetBSD: tlsb.c,v 1.4 1997/04/07 23:41:09 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> /* Config options headers */ 42 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 43 44 __KERNEL_RCSID(0, "$NetBSD: tlsb.c,v 1.4 1997/04/07 23:41:09 cgd Exp $"); 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/device.h> 49 #include <sys/malloc.h> 50 51 #include <machine/autoconf.h> 52 #include <machine/rpb.h> 53 #include <machine/pte.h> 54 55 #include <alpha/tlsb/tlsbreg.h> 56 #include <alpha/tlsb/tlsbvar.h> 57 58 extern int cputype; 59 int cpu_node_id; 60 extern struct cfdriver cpu_cd; 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 struct cfattach tlsb_ca = { 67 sizeof (struct device), tlsbmatch, tlsbattach 68 }; 69 70 struct cfdriver tlsb_cd = { 71 NULL, "tlsb", DV_DULL, 72 }; 73 74 static int tlsbprint __P((void *, const char *)); 75 static int tlsbsubmatch __P((struct device *, struct cfdata *, void *)); 76 static char *tlsb_node_type_str __P((u_int32_t)); 77 78 static int 79 tlsbprint(aux, cp) 80 void *aux; 81 const char *cp; 82 { 83 struct tlsb_dev_attach_args *tap = aux; 84 printf(" node %d: %s", tap->ta_node, 85 tlsb_node_type_str(tap->ta_dtype)); 86 return (UNCONF); 87 } 88 89 static int 90 tlsbsubmatch(parent, cf, aux) 91 struct device *parent; 92 struct cfdata *cf; 93 void *aux; 94 { 95 struct tlsb_dev_attach_args *tap = aux; 96 if (tap->ta_name != tlsb_cd.cd_name) 97 return (0); 98 if ((cf->cf_loc[0] != -1) && (cf->cf_loc[0] != 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 struct tlsb_dev_attach_args ta; 133 u_int32_t tldev; 134 u_int8_t vid; 135 int node; 136 struct tlsb_cpu_busdep *tcpu; 137 struct cfdriver *cfd = &cpu_cd; 138 139 printf("\n"); 140 141 /* 142 * Attempt to find all devices on the bus, including 143 * CPUs, memory modules, and I/O modules. 144 */ 145 146 /* 147 * Sigh. I would like to just start off nicely, 148 * but I need to treat I/O modules differently- 149 * The highest priority I/O node has to be in 150 * node #8, and I want to find it *first*, since 151 * it will have the primary disks (most likely) 152 * on it. 153 */ 154 for (node = 0; node <= TLSB_NODE_MAX; ++node) { 155 /* 156 * Check for invalid address. This may not really 157 * be necessary, but what the heck... 158 */ 159 if (badaddr(TLSB_NODE_REG_ADDR(node, TLDEV), sizeof(u_int32_t))) 160 continue; 161 tldev = TLSB_GET_NODEREG(node, TLDEV); 162 if (tldev == 0) { 163 /* Nothing at this node. */ 164 continue; 165 } 166 if (TLDEV_ISIOPORT(tldev)) 167 continue; /* not interested right now */ 168 ta.ta_name = tlsb_cd.cd_name; 169 ta.ta_node = node; 170 ta.ta_dtype = TLDEV_DTYPE(tldev); 171 ta.ta_swrev = TLDEV_SWREV(tldev); 172 ta.ta_hwrev = TLDEV_HWREV(tldev); 173 174 /* 175 * Deal with hooking CPU instances to TurboLaser nodes. 176 */ 177 if (TLDEV_ISCPU(tldev)) { 178 printf("%s node %d: %s", self->dv_xname, 179 node, tlsb_node_type_str(tldev)); 180 181 /* 182 * Hook in the first CPU unit. 183 */ 184 vid = (TLSB_GET_NODEREG(node, TLVID) & 185 TLVID_VIDA_MASK) >> TLVID_VIDA_SHIFT; 186 187 if ((tcpu = malloc(sizeof(struct tlsb_cpu_busdep), 188 M_DEVBUF, M_NOWAIT)) == NULL) 189 panic("\nno memory for cpu busdep info"); 190 191 tcpu->tcpu_vid = vid; 192 tcpu->tcpu_node = node; 193 cpu_node_id = node; 194 printf(", VID %d -> %s", tcpu->tcpu_vid, cfd->cd_name); 195 196 /* 197 * Do 2nd CPU (if available) here. 198 */ 199 printf("\n"); 200 TLSB_PUT_NODEREG(node, TLCPUMASK, (1<<vid)); 201 202 /* 203 * XXX: Check to make sure that INTRMASK has ints 204 * XXX: enabled for this CPU. 205 */ 206 } 207 /* 208 * Attach any children nodes, including a CPU's GBus 209 */ 210 config_found_sm(self, &ta, tlsbprint, tlsbsubmatch); 211 } 212 /* 213 * *Now* search for I/O nodes (in descending order) 214 */ 215 while (--node > 0) { 216 if (badaddr(TLSB_NODE_REG_ADDR(node, TLDEV), sizeof(u_int32_t))) 217 continue; 218 tldev = TLSB_GET_NODEREG(node, TLDEV); 219 if (tldev == 0) { 220 continue; 221 } 222 if (TLDEV_ISIOPORT(tldev)) { 223 ta.ta_name = tlsb_cd.cd_name; 224 ta.ta_node = node; 225 ta.ta_dtype = TLDEV_DTYPE(tldev); 226 ta.ta_swrev = TLDEV_SWREV(tldev); 227 ta.ta_hwrev = TLDEV_HWREV(tldev); 228 config_found_sm(self, &ta, tlsbprint, tlsbsubmatch); 229 } 230 } 231 } 232 233 static char * 234 tlsb_node_type_str(dtype) 235 u_int32_t dtype; 236 { 237 static char tlsb_line[64]; 238 239 switch (dtype & TLDEV_DTYPE_MASK) { 240 case TLDEV_DTYPE_KFTHA: 241 return ("KFTHA I/O interface"); 242 243 case TLDEV_DTYPE_KFTIA: 244 return ("KFTIA I/O interface"); 245 246 case TLDEV_DTYPE_MS7CC: 247 return ("MS7CC Memory Module"); 248 249 case TLDEV_DTYPE_SCPU4: 250 return ("Single CPU, 4MB cache"); 251 252 case TLDEV_DTYPE_SCPU16: 253 return ("Single CPU, 16MB cache"); 254 255 case TLDEV_DTYPE_DCPU4: 256 return ("Dual CPU, 4MB cache"); 257 258 case TLDEV_DTYPE_DCPU16: 259 return ("Dual CPU, 16MB cache"); 260 261 default: 262 bzero(tlsb_line, sizeof(tlsb_line)); 263 sprintf(tlsb_line, "unknown, dtype 0x%x", dtype); 264 return (tlsb_line); 265 } 266 /* NOTREACHED */ 267 } 268
Indexes created Mon Sep 29 21:09:56 GMT 2025