1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/sysmacros.h> 32 #include <sys/sunddi.h> 33 #include <sys/esunddi.h> 34 #include <sys/platform_module.h> 35 #include <sys/errno.h> 36 #include <sys/lgrp.h> 37 #include <sys/memnode.h> 38 #include <sys/promif.h> 39 40 #define SHARED_MI2CV_PATH "/i2c@1f,520000" 41 static dev_info_t *shared_mi2cv_dip; 42 static kmutex_t chicago_mi2cv_mutex; 43 44 int (*p2get_mem_unum)(int, uint64_t, char *, int, int *); 45 46 void 47 startup_platform(void) 48 { 49 mutex_init(&chicago_mi2cv_mutex, NULL, NULL, NULL); 50 } 51 52 int 53 set_platform_tsb_spares() 54 { 55 return (0); 56 } 57 58 void 59 set_platform_defaults(void) 60 { 61 extern char *tod_module_name; 62 /* Set appropriate tod module for Chicago */ 63 if (tod_module_name == NULL) 64 tod_module_name = "todds1337"; 65 } 66 67 /* 68 * Definitions for accessing the pci config space of the isa node 69 * of Southbridge. 70 */ 71 static ddi_acc_handle_t isa_handle = NULL; /* handle for isa pci space */ 72 73 74 void 75 load_platform_drivers(void) 76 { 77 /* 78 * Install power driver which handles the power button. 79 */ 80 if (i_ddi_attach_hw_nodes("power") != DDI_SUCCESS) 81 cmn_err(CE_WARN, "Failed to install \"power\" driver."); 82 (void) ddi_hold_driver(ddi_name_to_major("power")); 83 84 /* 85 * It is OK to return error because 'us' driver is not available 86 * in all clusters (e.g. missing in Core cluster). 87 */ 88 (void) i_ddi_attach_hw_nodes("us"); 89 90 if (i_ddi_attach_hw_nodes("grbeep") != DDI_SUCCESS) 91 cmn_err(CE_WARN, "Failed to install \"beep\" driver."); 92 93 94 /* 95 * mc-us3i must stay loaded for plat_get_mem_unum() 96 */ 97 if (i_ddi_attach_hw_nodes("mc-us3i") != DDI_SUCCESS) 98 cmn_err(CE_WARN, "mc-us3i driver failed to install"); 99 (void) ddi_hold_driver(ddi_name_to_major("mc-us3i")); 100 101 /* 102 * Figure out which mi2cv dip is shared with OBP for the nvram 103 * device, so the lock can be acquired. 104 */ 105 shared_mi2cv_dip = e_ddi_hold_devi_by_path(SHARED_MI2CV_PATH, 0); 106 107 /* 108 * todds1337 needs early attach 109 */ 110 if (i_ddi_attach_hw_nodes("todds1337") != DDI_SUCCESS) 111 cmn_err(CE_WARN, "todds1337 driver failed to install"); 112 } 113 114 /* 115 * This routine is needed if a device error or timeout occurs before the 116 * driver is loaded. 117 */ 118 /*ARGSUSED*/ 119 int 120 plat_ide_chipreset(dev_info_t *dip, int chno) 121 { 122 int ret = DDI_SUCCESS; 123 124 if (isa_handle == NULL) { 125 return (DDI_FAILURE); 126 } 127 128 /* 129 * This will be filled in with the reset logic 130 * for the ULI1573 when that becomes available. 131 * currently this is just a stub. 132 */ 133 return (ret); 134 } 135 136 137 /*ARGSUSED*/ 138 int 139 plat_cpu_poweron(struct cpu *cp) 140 { 141 return (ENOTSUP); /* not supported on this platform */ 142 } 143 144 /*ARGSUSED*/ 145 int 146 plat_cpu_poweroff(struct cpu *cp) 147 { 148 return (ENOTSUP); /* not supported on this platform */ 149 } 150 151 /*ARGSUSED*/ 152 void 153 plat_freelist_process(int mnode) 154 { 155 } 156 157 char *platform_module_list[] = { 158 "mi2cv", 159 "jbusppm", 160 "pca9556", 161 "ppm", 162 (char *)0 163 }; 164 165 /*ARGSUSED*/ 166 void 167 plat_tod_fault(enum tod_fault_type tod_bad) 168 { 169 } 170 171 /*ARGSUSED*/ 172 int 173 plat_get_mem_unum(int synd_code, uint64_t flt_addr, int flt_bus_id, 174 int flt_in_memory, ushort_t flt_status, char *buf, int buflen, int *lenp) 175 { 176 if (flt_in_memory && (p2get_mem_unum != NULL)) 177 return (p2get_mem_unum(synd_code, P2ALIGN(flt_addr, 8), 178 buf, buflen, lenp)); 179 else 180 return (ENOTSUP); 181 } 182 183 /*ARGSUSED*/ 184 int 185 plat_get_cpu_unum(int cpuid, char *buf, int buflen, int *lenp) 186 { 187 if (snprintf(buf, buflen, "MB") >= buflen) { 188 return (ENOSPC); 189 } else { 190 *lenp = strlen(buf); 191 return (0); 192 } 193 } 194 195 /* 196 * Fiesta support for lgroups. 197 * 198 * On fiesta platform, an lgroup platform handle == CPU id 199 */ 200 201 /* 202 * Macro for extracting the CPU number from the CPU id 203 */ 204 #define CPUID_TO_LGRP(id) ((id) & 0x7) 205 #define CHICAGO_MC_SHIFT 36 206 207 /* 208 * Return the platform handle for the lgroup containing the given CPU 209 */ 210 void * 211 plat_lgrp_cpu_to_hand(processorid_t id) 212 { 213 return ((void *) CPUID_TO_LGRP(id)); 214 } 215 216 /* 217 * Platform specific lgroup initialization 218 */ 219 void 220 plat_lgrp_init(void) 221 { 222 dnode_t curnode; 223 char tmp_name[MAXSYSNAME]; 224 int portid; 225 int cpucnt = 0; 226 int max_portid = -1; 227 extern uint32_t lgrp_expand_proc_thresh; 228 extern uint32_t lgrp_expand_proc_diff; 229 extern pgcnt_t lgrp_mem_free_thresh; 230 extern uint32_t lgrp_loadavg_tolerance; 231 extern uint32_t lgrp_loadavg_max_effect; 232 extern uint32_t lgrp_load_thresh; 233 extern lgrp_mem_policy_t lgrp_mem_policy_root; 234 235 /* 236 * Count the number of CPUs installed to determine if 237 * NUMA optimization should be enabled or not. 238 * 239 * All CPU nodes reside in the root node and have a 240 * device type "cpu". 241 */ 242 curnode = prom_rootnode(); 243 for (curnode = prom_childnode(curnode); curnode; 244 curnode = prom_nextnode(curnode)) { 245 bzero(tmp_name, MAXSYSNAME); 246 if (prom_getproplen(curnode, OBP_NAME) < MAXSYSNAME) { 247 if (prom_getprop(curnode, OBP_NAME, 248 (caddr_t)tmp_name) == -1 || prom_getprop(curnode, 249 OBP_DEVICETYPE, tmp_name) == -1 || strcmp(tmp_name, 250 "cpu") != 0) 251 continue; 252 253 cpucnt++; 254 if (prom_getprop(curnode, "portid", (caddr_t)&portid) != 255 -1 && portid > max_portid) 256 max_portid = portid; 257 } 258 } 259 if (cpucnt <= 1) 260 max_mem_nodes = 1; 261 else if (max_portid >= 0 && max_portid < MAX_MEM_NODES) 262 max_mem_nodes = max_portid + 1; 263 264 /* 265 * Set tuneables for fiesta architecture 266 * 267 * lgrp_expand_proc_thresh is the minimum load on the lgroups 268 * this process is currently running on before considering 269 * expanding threads to another lgroup. 270 * 271 * lgrp_expand_proc_diff determines how much less the remote lgroup 272 * must be loaded before expanding to it. 273 * 274 * Optimize for memory bandwidth by spreading multi-threaded 275 * program to different lgroups. 276 */ 277 lgrp_expand_proc_thresh = lgrp_loadavg_max_effect - 1; 278 lgrp_expand_proc_diff = lgrp_loadavg_max_effect / 2; 279 lgrp_loadavg_tolerance = lgrp_loadavg_max_effect / 2; 280 lgrp_mem_free_thresh = 1; /* home lgrp must have some memory */ 281 lgrp_expand_proc_thresh = lgrp_loadavg_max_effect - 1; 282 lgrp_mem_policy_root = LGRP_MEM_POLICY_NEXT; 283 lgrp_load_thresh = 0; 284 285 mem_node_pfn_shift = CHICAGO_MC_SHIFT - MMU_PAGESHIFT; 286 } 287 288 /* 289 * Return latency between "from" and "to" lgroups 290 * 291 * This latency number can only be used for relative comparison 292 * between lgroups on the running system, cannot be used across platforms, 293 * and may not reflect the actual latency. It is platform and implementation 294 * specific, so platform gets to decide its value. It would be nice if the 295 * number was at least proportional to make comparisons more meaningful though. 296 * NOTE: The numbers below are supposed to be load latencies for uncached 297 * memory divided by 10. 298 */ 299 int 300 plat_lgrp_latency(lgrp_handle_t from, lgrp_handle_t to) 301 { 302 /* 303 * Return remote latency when there are more than two lgroups 304 * (root and child) and getting latency between two different 305 * lgroups or root is involved 306 */ 307 if (lgrp_optimizations() && (from != to || 308 from == LGRP_DEFAULT_HANDLE || to == LGRP_DEFAULT_HANDLE)) 309 return (17); 310 else 311 return (12); 312 } 313 314 int 315 plat_pfn_to_mem_node(pfn_t pfn) 316 { 317 ASSERT(max_mem_nodes > 1); 318 return (pfn >> mem_node_pfn_shift); 319 } 320 321 /* 322 * Assign memnode to lgroups 323 */ 324 void 325 plat_fill_mc(dnode_t nodeid) 326 { 327 int portid; 328 329 /* 330 * Chicago memory controller portid == global CPU id 331 */ 332 if ((prom_getprop(nodeid, "portid", (caddr_t)&portid) == -1) || 333 (portid < 0)) 334 return; 335 336 if (portid < max_mem_nodes) 337 plat_assign_lgrphand_to_mem_node((lgrp_handle_t)portid, portid); 338 } 339 340 /* ARGSUSED */ 341 void 342 plat_build_mem_nodes(u_longlong_t *list, size_t nelems) 343 { 344 size_t elem; 345 pfn_t basepfn; 346 pgcnt_t npgs; 347 348 /* 349 * Boot install lists are arranged <addr, len>, <addr, len>, ... 350 */ 351 for (elem = 0; elem < nelems; elem += 2) { 352 basepfn = btop(list[elem]); 353 npgs = btop(list[elem+1]); 354 mem_node_add_slice(basepfn, basepfn + npgs - 1); 355 } 356 } 357 358 /* 359 * Common locking enter code 360 */ 361 void 362 plat_setprop_enter(void) 363 { 364 mutex_enter(&chicago_mi2cv_mutex); 365 } 366 367 /* 368 * Common locking exit code 369 */ 370 void 371 plat_setprop_exit(void) 372 { 373 mutex_exit(&chicago_mi2cv_mutex); 374 } 375 376 /* 377 * Called by mi2cv driver 378 */ 379 void 380 plat_shared_i2c_enter(dev_info_t *i2cnexus_dip) 381 { 382 if (i2cnexus_dip == shared_mi2cv_dip) { 383 plat_setprop_enter(); 384 } 385 } 386 387 /* 388 * Called by mi2cv driver 389 */ 390 void 391 plat_shared_i2c_exit(dev_info_t *i2cnexus_dip) 392 { 393 if (i2cnexus_dip == shared_mi2cv_dip) { 394 plat_setprop_exit(); 395 } 396 } 397