bsd/dev/i386/sysctl.c

   1 /*
   2  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #include <string.h>
  30 #include <sys/param.h>
  31 #include <sys/kernel.h>
  32 #include <sys/sysctl.h>
  33 #include <i386/cpuid.h>
  34 #include <i386/tsc.h>
  35
  36 static int
  37 hw_cpu_sysctl SYSCTL_HANDLER_ARGS
  38 {
  39     __unused struct sysctl_oid *unused_oidp = oidp;
  40     i386_cpu_info_t *cpu_info = cpuid_info();
  41     void *ptr = (uint8_t *)cpu_info + (uint32_t)arg1;
  42     int value;
  43
  44     if (arg2 == -1) {
  45         ptr = *(char **)ptr;
  46         arg2 = 0;
  47     }
  48
  49     if (arg2 == 0 && ((char *)ptr)[0] == '\0') {
  50         return ENOENT;
  51     }
  52
  53     if (arg2 == sizeof(uint8_t)) {
  54         value = (uint32_t) *(uint8_t *)ptr;
  55         ptr = &value;
  56         arg2 = sizeof(uint32_t);
  57     }
  58     return SYSCTL_OUT(req, ptr, arg2 ? (size_t) arg2 : strlen((char *)ptr)+1);
  59 }
  60
  61 static int
  62 hw_cpu_features SYSCTL_HANDLER_ARGS
  63 {
  64     __unused struct sysctl_oid *unused_oidp = oidp;
  65     __unused void *unused_arg1 = arg1;
  66     __unused int unused_arg2 = arg2;
  67     char buf[256];
  68
  69     buf[0] = '\0';
  70     cpuid_get_feature_names(cpuid_features(), buf, sizeof(buf));
  71
  72     return SYSCTL_OUT(req, buf, strlen(buf) + 1);
  73 }
  74
  75 static int
  76 hw_cpu_extfeatures SYSCTL_HANDLER_ARGS
  77 {
  78     __unused struct sysctl_oid *unused_oidp = oidp;
  79     __unused void *unused_arg1 = arg1;
  80     __unused int unused_arg2 = arg2;
  81     char buf[256];
  82
  83     buf[0] = '\0';
  84     cpuid_get_extfeature_names(cpuid_extfeatures(), buf, sizeof(buf));
  85
  86     return SYSCTL_OUT(req, buf, strlen(buf) + 1);
  87 }
  88
  89 static int
  90 hw_cpu_logical_per_package SYSCTL_HANDLER_ARGS
  91 {
  92         __unused struct sysctl_oid *unused_oidp = oidp;
  93         __unused void *unused_arg1 = arg1;
  94         __unused int unused_arg2 = arg2;
  95         i386_cpu_info_t *cpu_info = cpuid_info();
  96
  97         if (!(cpuid_features() & CPUID_FEATURE_HTT))
  98                 return ENOENT;
  99
 100         return SYSCTL_OUT(req, &cpu_info->cpuid_logical_per_package,
 101                           sizeof(cpu_info->cpuid_logical_per_package));
 102 }
 103
 104 static int
 105 hw_cpu_sysctl_nehalem SYSCTL_HANDLER_ARGS
 106 {
 107         i386_cpu_info_t *cpu_info = cpuid_info();
 108
 109         if (cpu_info->cpuid_model != 26)
 110                 return ENOENT;
 111
 112         hw_cpu_sysctl(oidp, arg1, arg2, req);
 113 }
 114
 115 static int
 116 hw_cpu_flex_ratio_desired SYSCTL_HANDLER_ARGS
 117 {
 118         __unused struct sysctl_oid *unused_oidp = oidp;
 119         __unused void *unused_arg1 = arg1;
 120         __unused int unused_arg2 = arg2;
 121         i386_cpu_info_t *cpu_info = cpuid_info();
 122
 123         if (cpu_info->cpuid_model != 26)
 124                 return ENOENT;
 125
 126         return SYSCTL_OUT(req, &flex_ratio, sizeof(flex_ratio));
 127 }
 128
 129 static int
 130 hw_cpu_flex_ratio_min SYSCTL_HANDLER_ARGS
 131 {
 132         __unused struct sysctl_oid *unused_oidp = oidp;
 133         __unused void *unused_arg1 = arg1;
 134         __unused int unused_arg2 = arg2;
 135         i386_cpu_info_t *cpu_info = cpuid_info();
 136
 137         if (cpu_info->cpuid_model != 26)
 138                 return ENOENT;
 139
 140         return SYSCTL_OUT(req, &flex_ratio_min, sizeof(flex_ratio_min));
 141 }
 142
 143 static int
 144 hw_cpu_flex_ratio_max SYSCTL_HANDLER_ARGS
 145 {
 146         __unused struct sysctl_oid *unused_oidp = oidp;
 147         __unused void *unused_arg1 = arg1;
 148         __unused int unused_arg2 = arg2;
 149         i386_cpu_info_t *cpu_info = cpuid_info();
 150
 151         if (cpu_info->cpuid_model != 26)
 152                 return ENOENT;
 153
 154         return SYSCTL_OUT(req, &flex_ratio_max, sizeof(flex_ratio_max));
 155 }
 156
 157 SYSCTL_NODE(_machdep, OID_AUTO, cpu, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 158         "CPU info");
 159
 160 SYSCTL_PROC(_machdep_cpu, OID_AUTO, vendor, CTLTYPE_STRING | CTLFLAG_RD,
 161             (void *)offsetof(i386_cpu_info_t, cpuid_vendor), 0,
 162             hw_cpu_sysctl, "A", "CPU vendor");
 163
 164 SYSCTL_PROC(_machdep_cpu, OID_AUTO, brand_string, CTLTYPE_STRING | CTLFLAG_RD,
 165             (void *)offsetof(i386_cpu_info_t, cpuid_brand_string), 0,
 166             hw_cpu_sysctl, "A", "CPU brand string");
 167
 168 SYSCTL_PROC(_machdep_cpu, OID_AUTO, family, CTLTYPE_INT | CTLFLAG_RD,
 169             (void *)offsetof(i386_cpu_info_t, cpuid_family), sizeof(uint8_t),
 170             hw_cpu_sysctl, "I", "CPU family");
 171
 172 SYSCTL_PROC(_machdep_cpu, OID_AUTO, model, CTLTYPE_INT | CTLFLAG_RD,
 173             (void *)offsetof(i386_cpu_info_t, cpuid_model), sizeof(uint8_t),
 174             hw_cpu_sysctl, "I", "CPU model");
 175
 176 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extmodel, CTLTYPE_INT | CTLFLAG_RD,
 177             (void *)offsetof(i386_cpu_info_t, cpuid_extmodel), sizeof(uint8_t),
 178             hw_cpu_sysctl, "I", "CPU extended model");
 179
 180 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extfamily, CTLTYPE_INT | CTLFLAG_RD,
 181             (void *)offsetof(i386_cpu_info_t, cpuid_extfamily), sizeof(uint8_t),
 182             hw_cpu_sysctl, "I", "CPU extended family");
 183
 184 SYSCTL_PROC(_machdep_cpu, OID_AUTO, stepping, CTLTYPE_INT | CTLFLAG_RD,
 185             (void *)offsetof(i386_cpu_info_t, cpuid_stepping), sizeof(uint8_t),
 186             hw_cpu_sysctl, "I", "CPU stepping");
 187
 188 SYSCTL_PROC(_machdep_cpu, OID_AUTO, feature_bits, CTLTYPE_QUAD | CTLFLAG_RD,
 189             (void *)offsetof(i386_cpu_info_t, cpuid_features), sizeof(uint64_t),
 190             hw_cpu_sysctl, "I", "CPU features");
 191
 192 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extfeature_bits, CTLTYPE_QUAD | CTLFLAG_RD,
 193             (void *)offsetof(i386_cpu_info_t, cpuid_extfeatures), sizeof(uint64_t),
 194             hw_cpu_sysctl, "I", "CPU extended features");
 195
 196 SYSCTL_PROC(_machdep_cpu, OID_AUTO, signature, CTLTYPE_INT | CTLFLAG_RD,
 197             (void *)offsetof(i386_cpu_info_t, cpuid_signature), sizeof(uint32_t),
 198             hw_cpu_sysctl, "I", "CPU signature");
 199
 200 SYSCTL_PROC(_machdep_cpu, OID_AUTO, brand, CTLTYPE_INT | CTLFLAG_RD,
 201             (void *)offsetof(i386_cpu_info_t, cpuid_brand), sizeof(uint8_t),
 202             hw_cpu_sysctl, "I", "CPU brand");
 203
 204 SYSCTL_PROC(_machdep_cpu, OID_AUTO, features, CTLTYPE_STRING | CTLFLAG_RD,
 205             0, 0,
 206             hw_cpu_features, "A", "CPU feature names");
 207
 208 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extfeatures, CTLTYPE_STRING | CTLFLAG_RD,
 209             0, 0,
 210             hw_cpu_extfeatures, "A", "CPU extended feature names");
 211
 212 SYSCTL_PROC(_machdep_cpu, OID_AUTO, logical_per_package,
 213             CTLTYPE_INT | CTLFLAG_RD,
 214             0, 0,
 215             hw_cpu_logical_per_package, "I", "CPU logical cpus per package");
 216
 217 SYSCTL_PROC(_machdep_cpu, OID_AUTO, cores_per_package,
 218             CTLTYPE_INT | CTLFLAG_RD,
 219             (void *)offsetof(i386_cpu_info_t, cpuid_cores_per_package),
 220             sizeof(uint32_t),
 221             hw_cpu_sysctl, "I", "CPU cores per package");
 222
 223 SYSCTL_PROC(_machdep_cpu, OID_AUTO, microcode_version,
 224             CTLTYPE_INT | CTLFLAG_RD,
 225             (void *)offsetof(i386_cpu_info_t, cpuid_microcode_version),
 226             sizeof(uint32_t),
 227             hw_cpu_sysctl, "I", "Microcode version number");
 228
 229
 230 SYSCTL_NODE(_machdep_cpu, OID_AUTO, mwait, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 231         "mwait");
 232
 233 SYSCTL_PROC(_machdep_cpu_mwait, OID_AUTO, linesize_min,
 234             CTLTYPE_INT | CTLFLAG_RD,
 235             (void *)offsetof(i386_cpu_info_t, cpuid_mwait_linesize_min),
 236             sizeof(uint32_t),
 237             hw_cpu_sysctl, "I", "Monitor/mwait minimum line size");
 238
 239 SYSCTL_PROC(_machdep_cpu_mwait, OID_AUTO, linesize_max,
 240             CTLTYPE_INT | CTLFLAG_RD,
 241             (void *)offsetof(i386_cpu_info_t, cpuid_mwait_linesize_max),
 242             sizeof(uint32_t),
 243             hw_cpu_sysctl, "I", "Monitor/mwait maximum line size");
 244
 245 SYSCTL_PROC(_machdep_cpu_mwait, OID_AUTO, extensions,
 246             CTLTYPE_INT | CTLFLAG_RD,
 247             (void *)offsetof(i386_cpu_info_t, cpuid_mwait_extensions),
 248             sizeof(uint32_t),
 249             hw_cpu_sysctl, "I", "Monitor/mwait extensions");
 250
 251 SYSCTL_PROC(_machdep_cpu_mwait, OID_AUTO, sub_Cstates,
 252             CTLTYPE_INT | CTLFLAG_RD,
 253             (void *)offsetof(i386_cpu_info_t, cpuid_mwait_sub_Cstates),
 254             sizeof(uint32_t),
 255             hw_cpu_sysctl, "I", "Monitor/mwait sub C-states");
 256
 257
 258 SYSCTL_NODE(_machdep_cpu, OID_AUTO, thermal, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 259         "thermal");
 260
 261 SYSCTL_PROC(_machdep_cpu_thermal, OID_AUTO, sensor,
 262             CTLTYPE_INT | CTLFLAG_RD,
 263             (void *)offsetof(i386_cpu_info_t, cpuid_thermal_sensor),
 264             sizeof(boolean_t),
 265             hw_cpu_sysctl, "I", "Thermal sensor present");
 266
 267 SYSCTL_PROC(_machdep_cpu_thermal, OID_AUTO, dynamic_acceleration,
 268             CTLTYPE_INT | CTLFLAG_RD,
 269             (void *)offsetof(i386_cpu_info_t, cpuid_thermal_dynamic_acceleration),
 270             sizeof(boolean_t),
 271             hw_cpu_sysctl, "I", "Dynamic Acceleration Technology");
 272
 273 SYSCTL_PROC(_machdep_cpu_thermal, OID_AUTO, thresholds,
 274             CTLTYPE_INT | CTLFLAG_RD,
 275             (void *)offsetof(i386_cpu_info_t, cpuid_thermal_thresholds),
 276             sizeof(uint32_t),
 277             hw_cpu_sysctl, "I", "Number of interrupt thresholds");
 278
 279 SYSCTL_PROC(_machdep_cpu_thermal, OID_AUTO, ACNT_MCNT,
 280             CTLTYPE_INT | CTLFLAG_RD,
 281             (void *)offsetof(i386_cpu_info_t, cpuid_thermal_ACNT_MCNT),
 282             sizeof(boolean_t),
 283             hw_cpu_sysctl, "I", "ACNT_MCNT capability");
 284
 285
 286 SYSCTL_NODE(_machdep_cpu, OID_AUTO, arch_perf, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 287         "arch_perf");
 288
 289 SYSCTL_PROC(_machdep_cpu_arch_perf, OID_AUTO, version,
 290             CTLTYPE_INT | CTLFLAG_RD,
 291             (void *)offsetof(i386_cpu_info_t, cpuid_arch_perf_version),
 292             sizeof(uint8_t),
 293             hw_cpu_sysctl, "I", "Architectural Performance Version Number");
 294
 295 SYSCTL_PROC(_machdep_cpu_arch_perf, OID_AUTO, number,
 296             CTLTYPE_INT | CTLFLAG_RD,
 297             (void *)offsetof(i386_cpu_info_t, cpuid_arch_perf_number),
 298             sizeof(uint8_t),
 299             hw_cpu_sysctl, "I", "Number of counters per logical cpu");
 300
 301 SYSCTL_PROC(_machdep_cpu_arch_perf, OID_AUTO, width,
 302             CTLTYPE_INT | CTLFLAG_RD,
 303             (void *)offsetof(i386_cpu_info_t, cpuid_arch_perf_width),
 304             sizeof(uint8_t),
 305             hw_cpu_sysctl, "I", "Bit width of counters");
 306
 307 SYSCTL_PROC(_machdep_cpu_arch_perf, OID_AUTO, events_number,
 308             CTLTYPE_INT | CTLFLAG_RD,
 309             (void *)offsetof(i386_cpu_info_t, cpuid_arch_perf_events_number),
 310             sizeof(uint8_t),
 311             hw_cpu_sysctl, "I", "Number of monitoring events");
 312
 313 SYSCTL_PROC(_machdep_cpu_arch_perf, OID_AUTO, events,
 314             CTLTYPE_INT | CTLFLAG_RD,
 315             (void *)offsetof(i386_cpu_info_t, cpuid_arch_perf_events),
 316             sizeof(uint32_t),
 317             hw_cpu_sysctl, "I", "Bit vector of events");
 318
 319 SYSCTL_PROC(_machdep_cpu_arch_perf, OID_AUTO, fixed_number,
 320             CTLTYPE_INT | CTLFLAG_RD,
 321             (void *)offsetof(i386_cpu_info_t, cpuid_arch_perf_fixed_number),
 322             sizeof(uint8_t),
 323             hw_cpu_sysctl, "I", "Number of fixed-function counters");
 324
 325 SYSCTL_PROC(_machdep_cpu_arch_perf, OID_AUTO, fixed_width,
 326             CTLTYPE_INT | CTLFLAG_RD,
 327             (void *)offsetof(i386_cpu_info_t, cpuid_arch_perf_fixed_width),
 328             sizeof(uint8_t),
 329             hw_cpu_sysctl, "I", "Bit-width of fixed-function counters");
 330
 331
 332 SYSCTL_NODE(_machdep_cpu, OID_AUTO, cache, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 333         "cache");
 334
 335 SYSCTL_PROC(_machdep_cpu_cache, OID_AUTO, linesize,
 336             CTLTYPE_INT | CTLFLAG_RD,
 337             (void *)offsetof(i386_cpu_info_t, cpuid_cache_linesize),
 338             sizeof(uint32_t),
 339             hw_cpu_sysctl, "I", "Cacheline size");
 340
 341 SYSCTL_PROC(_machdep_cpu_cache, OID_AUTO, L2_associativity,
 342             CTLTYPE_INT | CTLFLAG_RD,
 343             (void *)offsetof(i386_cpu_info_t, cpuid_cache_L2_associativity),
 344             sizeof(uint32_t),
 345             hw_cpu_sysctl, "I", "L2 cache associativity");
 346
 347 SYSCTL_PROC(_machdep_cpu_cache, OID_AUTO, size,
 348             CTLTYPE_INT | CTLFLAG_RD,
 349             (void *)offsetof(i386_cpu_info_t, cpuid_cache_size),
 350             sizeof(uint32_t),
 351             hw_cpu_sysctl, "I", "Cache size (in Kbytes)");
 352
 353
 354 SYSCTL_NODE(_machdep_cpu, OID_AUTO, tlb, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 355         "tlb");
 356
 357 SYSCTL_PROC(_machdep_cpu_tlb, OID_AUTO, inst_small,
 358             CTLTYPE_INT | CTLFLAG_RD,
 359             (void *)offsetof(i386_cpu_info_t, cpuid_itlb_small),
 360             sizeof(uint32_t),
 361             hw_cpu_sysctl, "I", "Number of small page instruction TLBs");
 362
 363 SYSCTL_PROC(_machdep_cpu_tlb, OID_AUTO, data_small,
 364             CTLTYPE_INT | CTLFLAG_RD,
 365             (void *)offsetof(i386_cpu_info_t, cpuid_dtlb_small),
 366             sizeof(uint32_t),
 367             hw_cpu_sysctl, "I", "Number of small page data TLBs");
 368
 369 SYSCTL_PROC(_machdep_cpu_tlb, OID_AUTO, inst_large,
 370             CTLTYPE_INT | CTLFLAG_RD,
 371             (void *)offsetof(i386_cpu_info_t, cpuid_itlb_large),
 372             sizeof(uint32_t),
 373             hw_cpu_sysctl, "I", "Number of large page instruction TLBs");
 374
 375 SYSCTL_PROC(_machdep_cpu_tlb, OID_AUTO, data_large,
 376             CTLTYPE_INT | CTLFLAG_RD,
 377             (void *)offsetof(i386_cpu_info_t, cpuid_dtlb_large),
 378             sizeof(uint32_t),
 379             hw_cpu_sysctl, "I", "Number of large page data TLBs");
 380
 381
 382 SYSCTL_NODE(_machdep_cpu, OID_AUTO, address_bits, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 383         "address_bits");
 384
 385 SYSCTL_PROC(_machdep_cpu_address_bits, OID_AUTO, physical,
 386             CTLTYPE_INT | CTLFLAG_RD,
 387             (void *)offsetof(i386_cpu_info_t, cpuid_address_bits_physical),
 388             sizeof(uint32_t),
 389             hw_cpu_sysctl, "I", "Number of physical address bits");
 390
 391 SYSCTL_PROC(_machdep_cpu_address_bits, OID_AUTO, virtual,
 392             CTLTYPE_INT | CTLFLAG_RD,
 393             (void *)offsetof(i386_cpu_info_t, cpuid_address_bits_virtual),
 394             sizeof(uint32_t),
 395             hw_cpu_sysctl, "I", "Number of virtual address bits");
 396
 397 SYSCTL_PROC(_machdep_cpu, OID_AUTO, core_count,
 398             CTLTYPE_INT | CTLFLAG_RD,
 399             (void *)offsetof(i386_cpu_info_t, core_count),
 400             sizeof(uint32_t),
 401             hw_cpu_sysctl, "I", "Number of enabled cores per package");
 402
 403 SYSCTL_PROC(_machdep_cpu, OID_AUTO, thread_count,
 404             CTLTYPE_INT | CTLFLAG_RD,
 405             (void *)offsetof(i386_cpu_info_t, thread_count),
 406             sizeof(uint32_t),
 407             hw_cpu_sysctl, "I", "Number of enabled threads per package");
 408
 409 SYSCTL_NODE(_machdep_cpu, OID_AUTO, flex_ratio, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 410         "Flex ratio");
 411
 412 SYSCTL_PROC(_machdep_cpu_flex_ratio, OID_AUTO, desired,
 413             CTLTYPE_INT | CTLFLAG_RD,
 414             0, 0,
 415             hw_cpu_flex_ratio_desired, "I", "Flex ratio desired (0 disabled)");
 416
 417 SYSCTL_PROC(_machdep_cpu_flex_ratio, OID_AUTO, min,
 418             CTLTYPE_INT | CTLFLAG_RD,
 419             0, 0,
 420             hw_cpu_flex_ratio_min, "I", "Flex ratio min (efficiency)");
 421
 422 SYSCTL_PROC(_machdep_cpu_flex_ratio, OID_AUTO, max,
 423             CTLTYPE_INT | CTLFLAG_RD,
 424             0, 0,
 425             hw_cpu_flex_ratio_max, "I", "Flex ratio max (non-turbo)");
 426
 427 uint64_t pmap_pv_hashlist_walks;
 428 uint64_t pmap_pv_hashlist_cnts;
 429 uint32_t pmap_pv_hashlist_max;
 430
 431 /*extern struct sysctl_oid_list sysctl__machdep_pmap_children;*/
 432
 433 SYSCTL_NODE(_machdep, OID_AUTO, pmap, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
 434         "PMAP info");
 435
 436 SYSCTL_QUAD    (_machdep_pmap, OID_AUTO, hashwalks, CTLFLAG_RD | CTLFLAG_KERN, &pmap_pv_hashlist_walks, "");
 437 SYSCTL_QUAD    (_machdep_pmap, OID_AUTO, hashcnts, CTLFLAG_RD | CTLFLAG_KERN, &pmap_pv_hashlist_cnts, "");
 438 SYSCTL_INT     (_machdep_pmap, OID_AUTO, hashmax, CTLFLAG_RD | CTLFLAG_KERN, &pmap_pv_hashlist_max, 0, "");