tools/power/x86/turbostat/turbostat.c

   1 /*
   2  * turbostat -- show CPU frequency and C-state residency
   3  * on modern Intel turbo-capable processors.
   4  *
   5  * Copyright (c) 2013 Intel Corporation.
   6  * Len Brown <len.brown@intel.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms and conditions of the GNU General Public License,
  10  * version 2, as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  15  * more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along with
  18  * this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #define _GNU_SOURCE
  23 #include MSRHEADER
  24 #include <stdarg.h>
  25 #include <stdio.h>
  26 #include <err.h>
  27 #include <unistd.h>
  28 #include <sys/types.h>
  29 #include <sys/wait.h>
  30 #include <sys/stat.h>
  31 #include <sys/resource.h>
  32 #include <fcntl.h>
  33 #include <signal.h>
  34 #include <sys/time.h>
  35 #include <stdlib.h>
  36 #include <getopt.h>
  37 #include <dirent.h>
  38 #include <string.h>
  39 #include <ctype.h>
  40 #include <sched.h>
  41 #include <cpuid.h>
  42 #include <linux/capability.h>
  43 #include <errno.h>
  44
  45 char *proc_stat = "/proc/stat";
  46 unsigned int interval_sec = 5;
  47 unsigned int debug;
  48 unsigned int rapl_joules;
  49 unsigned int summary_only;
  50 unsigned int dump_only;
  51 unsigned int skip_c0;
  52 unsigned int skip_c1;
  53 unsigned int do_nhm_cstates;
  54 unsigned int do_snb_cstates;
  55 unsigned int do_knl_cstates;
  56 unsigned int do_pc2;
  57 unsigned int do_pc3;
  58 unsigned int do_pc6;
  59 unsigned int do_pc7;
  60 unsigned int do_c8_c9_c10;
  61 unsigned int do_skl_residency;
  62 unsigned int do_slm_cstates;
  63 unsigned int use_c1_residency_msr;
  64 unsigned int has_aperf;
  65 unsigned int has_epb;
  66 unsigned int units = 1000000;   /* MHz etc */
  67 unsigned int genuine_intel;
  68 unsigned int has_invariant_tsc;
  69 unsigned int do_nhm_platform_info;
  70 unsigned int extra_msr_offset32;
  71 unsigned int extra_msr_offset64;
  72 unsigned int extra_delta_offset32;
  73 unsigned int extra_delta_offset64;
  74 int do_smi;
  75 double bclk;
  76 unsigned int show_pkg;
  77 unsigned int show_core;
  78 unsigned int show_cpu;
  79 unsigned int show_pkg_only;
  80 unsigned int show_core_only;
  81 char *output_buffer, *outp;
  82 unsigned int do_rapl;
  83 unsigned int do_dts;
  84 unsigned int do_ptm;
  85 unsigned int tcc_activation_temp;
  86 unsigned int tcc_activation_temp_override;
  87 double rapl_power_units, rapl_time_units;
  88 double rapl_dram_energy_units, rapl_energy_units;
  89 double rapl_joule_counter_range;
  90 unsigned int do_core_perf_limit_reasons;
  91 unsigned int do_gfx_perf_limit_reasons;
  92 unsigned int do_ring_perf_limit_reasons;
  93 unsigned int crystal_hz;
  94 unsigned long long tsc_hz;
  95 int base_cpu;
  96
  97 #define RAPL_PKG                (1 << 0)
  98                                         /* 0x610 MSR_PKG_POWER_LIMIT */
  99                                         /* 0x611 MSR_PKG_ENERGY_STATUS */
 100 #define RAPL_PKG_PERF_STATUS    (1 << 1)
 101                                         /* 0x613 MSR_PKG_PERF_STATUS */
 102 #define RAPL_PKG_POWER_INFO     (1 << 2)
 103                                         /* 0x614 MSR_PKG_POWER_INFO */
 104
 105 #define RAPL_DRAM               (1 << 3)
 106                                         /* 0x618 MSR_DRAM_POWER_LIMIT */
 107                                         /* 0x619 MSR_DRAM_ENERGY_STATUS */
 108 #define RAPL_DRAM_PERF_STATUS   (1 << 4)
 109                                         /* 0x61b MSR_DRAM_PERF_STATUS */
 110 #define RAPL_DRAM_POWER_INFO    (1 << 5)
 111                                         /* 0x61c MSR_DRAM_POWER_INFO */
 112
 113 #define RAPL_CORES              (1 << 6)
 114                                         /* 0x638 MSR_PP0_POWER_LIMIT */
 115                                         /* 0x639 MSR_PP0_ENERGY_STATUS */
 116 #define RAPL_CORE_POLICY        (1 << 7)
 117                                         /* 0x63a MSR_PP0_POLICY */
 118
 119 #define RAPL_GFX                (1 << 8)
 120                                         /* 0x640 MSR_PP1_POWER_LIMIT */
 121                                         /* 0x641 MSR_PP1_ENERGY_STATUS */
 122                                         /* 0x642 MSR_PP1_POLICY */
 123 #define TJMAX_DEFAULT   100
 124
 125 #define MAX(a, b) ((a) > (b) ? (a) : (b))
 126
 127 int aperf_mperf_unstable;
 128 int backwards_count;
 129 char *progname;
 130
 131 cpu_set_t *cpu_present_set, *cpu_affinity_set;
 132 size_t cpu_present_setsize, cpu_affinity_setsize;
 133
 134 struct thread_data {
 135         unsigned long long tsc;
 136         unsigned long long aperf;
 137         unsigned long long mperf;
 138         unsigned long long c1;
 139         unsigned long long extra_msr64;
 140         unsigned long long extra_delta64;
 141         unsigned long long extra_msr32;
 142         unsigned long long extra_delta32;
 143         unsigned int smi_count;
 144         unsigned int cpu_id;
 145         unsigned int flags;
 146 #define CPU_IS_FIRST_THREAD_IN_CORE     0x2
 147 #define CPU_IS_FIRST_CORE_IN_PACKAGE    0x4
 148 } *thread_even, *thread_odd;
 149
 150 struct core_data {
 151         unsigned long long c3;
 152         unsigned long long c6;
 153         unsigned long long c7;
 154         unsigned int core_temp_c;
 155         unsigned int core_id;
 156 } *core_even, *core_odd;
 157
 158 struct pkg_data {
 159         unsigned long long pc2;
 160         unsigned long long pc3;
 161         unsigned long long pc6;
 162         unsigned long long pc7;
 163         unsigned long long pc8;
 164         unsigned long long pc9;
 165         unsigned long long pc10;
 166         unsigned long long pkg_wtd_core_c0;
 167         unsigned long long pkg_any_core_c0;
 168         unsigned long long pkg_any_gfxe_c0;
 169         unsigned long long pkg_both_core_gfxe_c0;
 170         unsigned int package_id;
 171         unsigned int energy_pkg;        /* MSR_PKG_ENERGY_STATUS */
 172         unsigned int energy_dram;       /* MSR_DRAM_ENERGY_STATUS */
 173         unsigned int energy_cores;      /* MSR_PP0_ENERGY_STATUS */
 174         unsigned int energy_gfx;        /* MSR_PP1_ENERGY_STATUS */
 175         unsigned int rapl_pkg_perf_status;      /* MSR_PKG_PERF_STATUS */
 176         unsigned int rapl_dram_perf_status;     /* MSR_DRAM_PERF_STATUS */
 177         unsigned int pkg_temp_c;
 178
 179 } *package_even, *package_odd;
 180
 181 #define ODD_COUNTERS thread_odd, core_odd, package_odd
 182 #define EVEN_COUNTERS thread_even, core_even, package_even
 183
 184 #define GET_THREAD(thread_base, thread_no, core_no, pkg_no) \
 185         (thread_base + (pkg_no) * topo.num_cores_per_pkg * \
 186                 topo.num_threads_per_core + \
 187                 (core_no) * topo.num_threads_per_core + (thread_no))
 188 #define GET_CORE(core_base, core_no, pkg_no) \
 189         (core_base + (pkg_no) * topo.num_cores_per_pkg + (core_no))
 190 #define GET_PKG(pkg_base, pkg_no) (pkg_base + pkg_no)
 191
 192 struct system_summary {
 193         struct thread_data threads;
 194         struct core_data cores;
 195         struct pkg_data packages;
 196 } sum, average;
 197
 198
 199 struct topo_params {
 200         int num_packages;
 201         int num_cpus;
 202         int num_cores;
 203         int max_cpu_num;
 204         int num_cores_per_pkg;
 205         int num_threads_per_core;
 206 } topo;
 207
 208 struct timeval tv_even, tv_odd, tv_delta;
 209
 210 void setup_all_buffers(void);
 211
 212 int cpu_is_not_present(int cpu)
 213 {
 214         return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set);
 215 }
 216 /*
 217  * run func(thread, core, package) in topology order
 218  * skip non-present cpus
 219  */
 220
 221 int for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *),
 222         struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base)
 223 {
 224         int retval, pkg_no, core_no, thread_no;
 225
 226         for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
 227                 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
 228                         for (thread_no = 0; thread_no <
 229                                 topo.num_threads_per_core; ++thread_no) {
 230                                 struct thread_data *t;
 231                                 struct core_data *c;
 232                                 struct pkg_data *p;
 233
 234                                 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
 235
 236                                 if (cpu_is_not_present(t->cpu_id))
 237                                         continue;
 238
 239                                 c = GET_CORE(core_base, core_no, pkg_no);
 240                                 p = GET_PKG(pkg_base, pkg_no);
 241
 242                                 retval = func(t, c, p);
 243                                 if (retval)
 244                                         return retval;
 245                         }
 246                 }
 247         }
 248         return 0;
 249 }
 250
 251 int cpu_migrate(int cpu)
 252 {
 253         CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
 254         CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set);
 255         if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1)
 256                 return -1;
 257         else
 258                 return 0;
 259 }
 260
 261 int get_msr(int cpu, off_t offset, unsigned long long *msr)
 262 {
 263         ssize_t retval;
 264         char pathname[32];
 265         int fd;
 266
 267         sprintf(pathname, "/dev/cpu/%d/msr", cpu);
 268         fd = open(pathname, O_RDONLY);
 269         if (fd < 0)
 270                 err(-1, "%s open failed, try chown or chmod +r /dev/cpu/*/msr, or run as root", pathname);
 271
 272         retval = pread(fd, msr, sizeof *msr, offset);
 273         close(fd);
 274
 275         if (retval != sizeof *msr)
 276                 err(-1, "%s offset 0x%llx read failed", pathname, (unsigned long long)offset);
 277
 278         return 0;
 279 }
 280
 281 /*
 282  * Example Format w/ field column widths:
 283  *
 284  *  Package    Core     CPU Avg_MHz Bzy_MHz TSC_MHz     SMI   %Busy CPU_%c1 CPU_%c3 CPU_%c6 CPU_%c7 CoreTmp  PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt CorWatt GFXWatt
 285  * 123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678
 286  */
 287
 288 void print_header(void)
 289 {
 290         if (show_pkg)
 291                 outp += sprintf(outp, " Package");
 292         if (show_core)
 293                 outp += sprintf(outp, "    Core");
 294         if (show_cpu)
 295                 outp += sprintf(outp, "     CPU");
 296         if (has_aperf)
 297                 outp += sprintf(outp, " Avg_MHz");
 298         if (has_aperf)
 299                 outp += sprintf(outp, "   %%Busy");
 300         if (has_aperf)
 301                 outp += sprintf(outp, " Bzy_MHz");
 302         outp += sprintf(outp, " TSC_MHz");
 303
 304         if (extra_delta_offset32)
 305                 outp += sprintf(outp, "  count 0x%03X", extra_delta_offset32);
 306         if (extra_delta_offset64)
 307                 outp += sprintf(outp, "  COUNT 0x%03X", extra_delta_offset64);
 308         if (extra_msr_offset32)
 309                 outp += sprintf(outp, "   MSR 0x%03X", extra_msr_offset32);
 310         if (extra_msr_offset64)
 311                 outp += sprintf(outp, "           MSR 0x%03X", extra_msr_offset64);
 312
 313         if (!debug)
 314                 goto done;
 315
 316         if (do_smi)
 317                 outp += sprintf(outp, "     SMI");
 318
 319         if (do_nhm_cstates)
 320                 outp += sprintf(outp, "  CPU%%c1");
 321         if (do_nhm_cstates && !do_slm_cstates && !do_knl_cstates)
 322                 outp += sprintf(outp, "  CPU%%c3");
 323         if (do_nhm_cstates)
 324                 outp += sprintf(outp, "  CPU%%c6");
 325         if (do_snb_cstates)
 326                 outp += sprintf(outp, "  CPU%%c7");
 327
 328         if (do_dts)
 329                 outp += sprintf(outp, " CoreTmp");
 330         if (do_ptm)
 331                 outp += sprintf(outp, "  PkgTmp");
 332
 333         if (do_skl_residency) {
 334                 outp += sprintf(outp, " Totl%%C0");
 335                 outp += sprintf(outp, "  Any%%C0");
 336                 outp += sprintf(outp, "  GFX%%C0");
 337                 outp += sprintf(outp, " CPUGFX%%");
 338         }
 339
 340         if (do_pc2)
 341                 outp += sprintf(outp, " Pkg%%pc2");
 342         if (do_pc3)
 343                 outp += sprintf(outp, " Pkg%%pc3");
 344         if (do_pc6)
 345                 outp += sprintf(outp, " Pkg%%pc6");
 346         if (do_pc7)
 347                 outp += sprintf(outp, " Pkg%%pc7");
 348         if (do_c8_c9_c10) {
 349                 outp += sprintf(outp, " Pkg%%pc8");
 350                 outp += sprintf(outp, " Pkg%%pc9");
 351                 outp += sprintf(outp, " Pk%%pc10");
 352         }
 353
 354         if (do_rapl && !rapl_joules) {
 355                 if (do_rapl & RAPL_PKG)
 356                         outp += sprintf(outp, " PkgWatt");
 357                 if (do_rapl & RAPL_CORES)
 358                         outp += sprintf(outp, " CorWatt");
 359                 if (do_rapl & RAPL_GFX)
 360                         outp += sprintf(outp, " GFXWatt");
 361                 if (do_rapl & RAPL_DRAM)
 362                         outp += sprintf(outp, " RAMWatt");
 363                 if (do_rapl & RAPL_PKG_PERF_STATUS)
 364                         outp += sprintf(outp, "   PKG_%%");
 365                 if (do_rapl & RAPL_DRAM_PERF_STATUS)
 366                         outp += sprintf(outp, "   RAM_%%");
 367         } else if (do_rapl && rapl_joules) {
 368                 if (do_rapl & RAPL_PKG)
 369                         outp += sprintf(outp, "   Pkg_J");
 370                 if (do_rapl & RAPL_CORES)
 371                         outp += sprintf(outp, "   Cor_J");
 372                 if (do_rapl & RAPL_GFX)
 373                         outp += sprintf(outp, "   GFX_J");
 374                 if (do_rapl & RAPL_DRAM)
 375                         outp += sprintf(outp, "   RAM_J");
 376                 if (do_rapl & RAPL_PKG_PERF_STATUS)
 377                         outp += sprintf(outp, "   PKG_%%");
 378                 if (do_rapl & RAPL_DRAM_PERF_STATUS)
 379                         outp += sprintf(outp, "   RAM_%%");
 380                 outp += sprintf(outp, "   time");
 381
 382         }
 383     done:
 384         outp += sprintf(outp, "\n");
 385 }
 386
 387 int dump_counters(struct thread_data *t, struct core_data *c,
 388         struct pkg_data *p)
 389 {
 390         outp += sprintf(outp, "t %p, c %p, p %p\n", t, c, p);
 391
 392         if (t) {
 393                 outp += sprintf(outp, "CPU: %d flags 0x%x\n",
 394                         t->cpu_id, t->flags);
 395                 outp += sprintf(outp, "TSC: %016llX\n", t->tsc);
 396                 outp += sprintf(outp, "aperf: %016llX\n", t->aperf);
 397                 outp += sprintf(outp, "mperf: %016llX\n", t->mperf);
 398                 outp += sprintf(outp, "c1: %016llX\n", t->c1);
 399                 outp += sprintf(outp, "msr0x%x: %08llX\n",
 400                         extra_delta_offset32, t->extra_delta32);
 401                 outp += sprintf(outp, "msr0x%x: %016llX\n",
 402                         extra_delta_offset64, t->extra_delta64);
 403                 outp += sprintf(outp, "msr0x%x: %08llX\n",
 404                         extra_msr_offset32, t->extra_msr32);
 405                 outp += sprintf(outp, "msr0x%x: %016llX\n",
 406                         extra_msr_offset64, t->extra_msr64);
 407                 if (do_smi)
 408                         outp += sprintf(outp, "SMI: %08X\n", t->smi_count);
 409         }
 410
 411         if (c) {
 412                 outp += sprintf(outp, "core: %d\n", c->core_id);
 413                 outp += sprintf(outp, "c3: %016llX\n", c->c3);
 414                 outp += sprintf(outp, "c6: %016llX\n", c->c6);
 415                 outp += sprintf(outp, "c7: %016llX\n", c->c7);
 416                 outp += sprintf(outp, "DTS: %dC\n", c->core_temp_c);
 417         }
 418
 419         if (p) {
 420                 outp += sprintf(outp, "package: %d\n", p->package_id);
 421
 422                 outp += sprintf(outp, "Weighted cores: %016llX\n", p->pkg_wtd_core_c0);
 423                 outp += sprintf(outp, "Any cores: %016llX\n", p->pkg_any_core_c0);
 424                 outp += sprintf(outp, "Any GFX: %016llX\n", p->pkg_any_gfxe_c0);
 425                 outp += sprintf(outp, "CPU + GFX: %016llX\n", p->pkg_both_core_gfxe_c0);
 426
 427                 outp += sprintf(outp, "pc2: %016llX\n", p->pc2);
 428                 if (do_pc3)
 429                         outp += sprintf(outp, "pc3: %016llX\n", p->pc3);
 430                 if (do_pc6)
 431                         outp += sprintf(outp, "pc6: %016llX\n", p->pc6);
 432                 if (do_pc7)
 433                         outp += sprintf(outp, "pc7: %016llX\n", p->pc7);
 434                 outp += sprintf(outp, "pc8: %016llX\n", p->pc8);
 435                 outp += sprintf(outp, "pc9: %016llX\n", p->pc9);
 436                 outp += sprintf(outp, "pc10: %016llX\n", p->pc10);
 437                 outp += sprintf(outp, "Joules PKG: %0X\n", p->energy_pkg);
 438                 outp += sprintf(outp, "Joules COR: %0X\n", p->energy_cores);
 439                 outp += sprintf(outp, "Joules GFX: %0X\n", p->energy_gfx);
 440                 outp += sprintf(outp, "Joules RAM: %0X\n", p->energy_dram);
 441                 outp += sprintf(outp, "Throttle PKG: %0X\n",
 442                         p->rapl_pkg_perf_status);
 443                 outp += sprintf(outp, "Throttle RAM: %0X\n",
 444                         p->rapl_dram_perf_status);
 445                 outp += sprintf(outp, "PTM: %dC\n", p->pkg_temp_c);
 446         }
 447
 448         outp += sprintf(outp, "\n");
 449
 450         return 0;
 451 }
 452
 453 /*
 454  * column formatting convention & formats
 455  */
 456 int format_counters(struct thread_data *t, struct core_data *c,
 457         struct pkg_data *p)
 458 {
 459         double interval_float;
 460         char *fmt8;
 461
 462          /* if showing only 1st thread in core and this isn't one, bail out */
 463         if (show_core_only && !(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
 464                 return 0;
 465
 466          /* if showing only 1st thread in pkg and this isn't one, bail out */
 467         if (show_pkg_only && !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
 468                 return 0;
 469
 470         interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0;
 471
 472         /* topo columns, print blanks on 1st (average) line */
 473         if (t == &average.threads) {
 474                 if (show_pkg)
 475                         outp += sprintf(outp, "       -");
 476                 if (show_core)
 477                         outp += sprintf(outp, "       -");
 478                 if (show_cpu)
 479                         outp += sprintf(outp, "       -");
 480         } else {
 481                 if (show_pkg) {
 482                         if (p)
 483                                 outp += sprintf(outp, "%8d", p->package_id);
 484                         else
 485                                 outp += sprintf(outp, "       -");
 486                 }
 487                 if (show_core) {
 488                         if (c)
 489                                 outp += sprintf(outp, "%8d", c->core_id);
 490                         else
 491                                 outp += sprintf(outp, "       -");
 492                 }
 493                 if (show_cpu)
 494                         outp += sprintf(outp, "%8d", t->cpu_id);
 495         }
 496
 497         /* Avg_MHz */
 498         if (has_aperf)
 499                 outp += sprintf(outp, "%8.0f",
 500                         1.0 / units * t->aperf / interval_float);
 501
 502         /* %Busy */
 503         if (has_aperf) {
 504                 if (!skip_c0)
 505                         outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc);
 506                 else
 507                         outp += sprintf(outp, "********");
 508         }
 509
 510         /* Bzy_MHz */
 511         if (has_aperf)
 512                 outp += sprintf(outp, "%8.0f",
 513                         1.0 * t->tsc / units * t->aperf / t->mperf / interval_float);
 514
 515         /* TSC_MHz */
 516         outp += sprintf(outp, "%8.0f", 1.0 * t->tsc/units/interval_float);
 517
 518         /* delta */
 519         if (extra_delta_offset32)
 520                 outp += sprintf(outp, "  %11llu", t->extra_delta32);
 521
 522         /* DELTA */
 523         if (extra_delta_offset64)
 524                 outp += sprintf(outp, "  %11llu", t->extra_delta64);
 525         /* msr */
 526         if (extra_msr_offset32)
 527                 outp += sprintf(outp, "  0x%08llx", t->extra_msr32);
 528
 529         /* MSR */
 530         if (extra_msr_offset64)
 531                 outp += sprintf(outp, "  0x%016llx", t->extra_msr64);
 532
 533         if (!debug)
 534                 goto done;
 535
 536         /* SMI */
 537         if (do_smi)
 538                 outp += sprintf(outp, "%8d", t->smi_count);
 539
 540         if (do_nhm_cstates) {
 541                 if (!skip_c1)
 542                         outp += sprintf(outp, "%8.2f", 100.0 * t->c1/t->tsc);
 543                 else
 544                         outp += sprintf(outp, "********");
 545         }
 546
 547         /* print per-core data only for 1st thread in core */
 548         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
 549                 goto done;
 550
 551         if (do_nhm_cstates && !do_slm_cstates && !do_knl_cstates)
 552                 outp += sprintf(outp, "%8.2f", 100.0 * c->c3/t->tsc);
 553         if (do_nhm_cstates)
 554                 outp += sprintf(outp, "%8.2f", 100.0 * c->c6/t->tsc);
 555         if (do_snb_cstates)
 556                 outp += sprintf(outp, "%8.2f", 100.0 * c->c7/t->tsc);
 557
 558         if (do_dts)
 559                 outp += sprintf(outp, "%8d", c->core_temp_c);
 560
 561         /* print per-package data only for 1st core in package */
 562         if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
 563                 goto done;
 564
 565         /* PkgTmp */
 566         if (do_ptm)
 567                 outp += sprintf(outp, "%8d", p->pkg_temp_c);
 568
 569         /* Totl%C0, Any%C0 GFX%C0 CPUGFX% */
 570         if (do_skl_residency) {
 571                 outp += sprintf(outp, "%8.2f", 100.0 * p->pkg_wtd_core_c0/t->tsc);
 572                 outp += sprintf(outp, "%8.2f", 100.0 * p->pkg_any_core_c0/t->tsc);
 573                 outp += sprintf(outp, "%8.2f", 100.0 * p->pkg_any_gfxe_c0/t->tsc);
 574                 outp += sprintf(outp, "%8.2f", 100.0 * p->pkg_both_core_gfxe_c0/t->tsc);
 575         }
 576
 577         if (do_pc2)
 578                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc2/t->tsc);
 579         if (do_pc3)
 580                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc3/t->tsc);
 581         if (do_pc6)
 582                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc6/t->tsc);
 583         if (do_pc7)
 584                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc7/t->tsc);
 585         if (do_c8_c9_c10) {
 586                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc8/t->tsc);
 587                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc9/t->tsc);
 588                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc10/t->tsc);
 589         }
 590
 591         /*
 592          * If measurement interval exceeds minimum RAPL Joule Counter range,
 593          * indicate that results are suspect by printing "**" in fraction place.
 594          */
 595         if (interval_float < rapl_joule_counter_range)
 596                 fmt8 = "%8.2f";
 597         else
 598                 fmt8 = " %6.0f**";
 599
 600         if (do_rapl && !rapl_joules) {
 601                 if (do_rapl & RAPL_PKG)
 602                         outp += sprintf(outp, fmt8, p->energy_pkg * rapl_energy_units / interval_float);
 603                 if (do_rapl & RAPL_CORES)
 604                         outp += sprintf(outp, fmt8, p->energy_cores * rapl_energy_units / interval_float);
 605                 if (do_rapl & RAPL_GFX)
 606                         outp += sprintf(outp, fmt8, p->energy_gfx * rapl_energy_units / interval_float);
 607                 if (do_rapl & RAPL_DRAM)
 608                         outp += sprintf(outp, fmt8, p->energy_dram * rapl_dram_energy_units / interval_float);
 609                 if (do_rapl & RAPL_PKG_PERF_STATUS)
 610                         outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float);
 611                 if (do_rapl & RAPL_DRAM_PERF_STATUS)
 612                         outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float);
 613         } else if (do_rapl && rapl_joules) {
 614                 if (do_rapl & RAPL_PKG)
 615                         outp += sprintf(outp, fmt8,
 616                                         p->energy_pkg * rapl_energy_units);
 617                 if (do_rapl & RAPL_CORES)
 618                         outp += sprintf(outp, fmt8,
 619                                         p->energy_cores * rapl_energy_units);
 620                 if (do_rapl & RAPL_GFX)
 621                         outp += sprintf(outp, fmt8,
 622                                         p->energy_gfx * rapl_energy_units);
 623                 if (do_rapl & RAPL_DRAM)
 624                         outp += sprintf(outp, fmt8,
 625                                         p->energy_dram * rapl_dram_energy_units);
 626                 if (do_rapl & RAPL_PKG_PERF_STATUS)
 627                         outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float);
 628                 if (do_rapl & RAPL_DRAM_PERF_STATUS)
 629                         outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float);
 630
 631                 outp += sprintf(outp, fmt8, interval_float);
 632         }
 633 done:
 634         outp += sprintf(outp, "\n");
 635
 636         return 0;
 637 }
 638
 639 void flush_stdout()
 640 {
 641         fputs(output_buffer, stdout);
 642         fflush(stdout);
 643         outp = output_buffer;
 644 }
 645 void flush_stderr()
 646 {
 647         fputs(output_buffer, stderr);
 648         outp = output_buffer;
 649 }
 650 void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 651 {
 652         static int printed;
 653
 654         if (!printed || !summary_only)
 655                 print_header();
 656
 657         if (topo.num_cpus > 1)
 658                 format_counters(&average.threads, &average.cores,
 659                         &average.packages);
 660
 661         printed = 1;
 662
 663         if (summary_only)
 664                 return;
 665
 666         for_all_cpus(format_counters, t, c, p);
 667 }
 668
 669 #define DELTA_WRAP32(new, old)                  \
 670         if (new > old) {                        \
 671                 old = new - old;                \
 672         } else {                                \
 673                 old = 0x100000000 + new - old;  \
 674         }
 675
 676 void
 677 delta_package(struct pkg_data *new, struct pkg_data *old)
 678 {
 679
 680         if (do_skl_residency) {
 681                 old->pkg_wtd_core_c0 = new->pkg_wtd_core_c0 - old->pkg_wtd_core_c0;
 682                 old->pkg_any_core_c0 = new->pkg_any_core_c0 - old->pkg_any_core_c0;
 683                 old->pkg_any_gfxe_c0 = new->pkg_any_gfxe_c0 - old->pkg_any_gfxe_c0;
 684                 old->pkg_both_core_gfxe_c0 = new->pkg_both_core_gfxe_c0 - old->pkg_both_core_gfxe_c0;
 685         }
 686         old->pc2 = new->pc2 - old->pc2;
 687         if (do_pc3)
 688                 old->pc3 = new->pc3 - old->pc3;
 689         if (do_pc6)
 690                 old->pc6 = new->pc6 - old->pc6;
 691         if (do_pc7)
 692                 old->pc7 = new->pc7 - old->pc7;
 693         old->pc8 = new->pc8 - old->pc8;
 694         old->pc9 = new->pc9 - old->pc9;
 695         old->pc10 = new->pc10 - old->pc10;
 696         old->pkg_temp_c = new->pkg_temp_c;
 697
 698         DELTA_WRAP32(new->energy_pkg, old->energy_pkg);
 699         DELTA_WRAP32(new->energy_cores, old->energy_cores);
 700         DELTA_WRAP32(new->energy_gfx, old->energy_gfx);
 701         DELTA_WRAP32(new->energy_dram, old->energy_dram);
 702         DELTA_WRAP32(new->rapl_pkg_perf_status, old->rapl_pkg_perf_status);
 703         DELTA_WRAP32(new->rapl_dram_perf_status, old->rapl_dram_perf_status);
 704 }
 705
 706 void
 707 delta_core(struct core_data *new, struct core_data *old)
 708 {
 709         old->c3 = new->c3 - old->c3;
 710         old->c6 = new->c6 - old->c6;
 711         old->c7 = new->c7 - old->c7;
 712         old->core_temp_c = new->core_temp_c;
 713 }
 714
 715 /*
 716  * old = new - old
 717  */
 718 void
 719 delta_thread(struct thread_data *new, struct thread_data *old,
 720         struct core_data *core_delta)
 721 {
 722         old->tsc = new->tsc - old->tsc;
 723
 724         /* check for TSC < 1 Mcycles over interval */
 725         if (old->tsc < (1000 * 1000))
 726                 errx(-3, "Insanely slow TSC rate, TSC stops in idle?\n"
 727                      "You can disable all c-states by booting with \"idle=poll\"\n"
 728                      "or just the deep ones with \"processor.max_cstate=1\"");
 729
 730         old->c1 = new->c1 - old->c1;
 731
 732         if (has_aperf) {
 733                 if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) {
 734                         old->aperf = new->aperf - old->aperf;
 735                         old->mperf = new->mperf - old->mperf;
 736                 } else {
 737
 738                         if (!aperf_mperf_unstable) {
 739                                 fprintf(stderr, "%s: APERF or MPERF went backwards *\n", progname);
 740                                 fprintf(stderr, "* Frequency results do not cover entire interval *\n");
 741                                 fprintf(stderr, "* fix this by running Linux-2.6.30 or later *\n");
 742
 743                                 aperf_mperf_unstable = 1;
 744                         }
 745                         /*
 746                          * mperf delta is likely a huge "positive" number
 747                          * can not use it for calculating c0 time
 748                          */
 749                         skip_c0 = 1;
 750                         skip_c1 = 1;
 751                 }
 752         }
 753
 754
 755         if (use_c1_residency_msr) {
 756                 /*
 757                  * Some models have a dedicated C1 residency MSR,
 758                  * which should be more accurate than the derivation below.
 759                  */
 760         } else {
 761                 /*
 762                  * As counter collection is not atomic,
 763                  * it is possible for mperf's non-halted cycles + idle states
 764                  * to exceed TSC's all cycles: show c1 = 0% in that case.
 765                  */
 766                 if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc)
 767                         old->c1 = 0;
 768                 else {
 769                         /* normal case, derive c1 */
 770                         old->c1 = old->tsc - old->mperf - core_delta->c3
 771                                 - core_delta->c6 - core_delta->c7;
 772                 }
 773         }
 774
 775         if (old->mperf == 0) {
 776                 if (debug > 1) fprintf(stderr, "cpu%d MPERF 0!\n", old->cpu_id);
 777                 old->mperf = 1; /* divide by 0 protection */
 778         }
 779
 780         old->extra_delta32 = new->extra_delta32 - old->extra_delta32;
 781         old->extra_delta32 &= 0xFFFFFFFF;
 782
 783         old->extra_delta64 = new->extra_delta64 - old->extra_delta64;
 784
 785         /*
 786          * Extra MSR is just a snapshot, simply copy latest w/o subtracting
 787          */
 788         old->extra_msr32 = new->extra_msr32;
 789         old->extra_msr64 = new->extra_msr64;
 790
 791         if (do_smi)
 792                 old->smi_count = new->smi_count - old->smi_count;
 793 }
 794
 795 int delta_cpu(struct thread_data *t, struct core_data *c,
 796         struct pkg_data *p, struct thread_data *t2,
 797         struct core_data *c2, struct pkg_data *p2)
 798 {
 799         /* calculate core delta only for 1st thread in core */
 800         if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE)
 801                 delta_core(c, c2);
 802
 803         /* always calculate thread delta */
 804         delta_thread(t, t2, c2);        /* c2 is core delta */
 805
 806         /* calculate package delta only for 1st core in package */
 807         if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)
 808                 delta_package(p, p2);
 809
 810         return 0;
 811 }
 812
 813 void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 814 {
 815         t->tsc = 0;
 816         t->aperf = 0;
 817         t->mperf = 0;
 818         t->c1 = 0;
 819
 820         t->smi_count = 0;
 821         t->extra_delta32 = 0;
 822         t->extra_delta64 = 0;
 823
 824         /* tells format_counters to dump all fields from this set */
 825         t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE;
 826
 827         c->c3 = 0;
 828         c->c6 = 0;
 829         c->c7 = 0;
 830         c->core_temp_c = 0;
 831
 832         p->pkg_wtd_core_c0 = 0;
 833         p->pkg_any_core_c0 = 0;
 834         p->pkg_any_gfxe_c0 = 0;
 835         p->pkg_both_core_gfxe_c0 = 0;
 836
 837         p->pc2 = 0;
 838         if (do_pc3)
 839                 p->pc3 = 0;
 840         if (do_pc6)
 841                 p->pc6 = 0;
 842         if (do_pc7)
 843                 p->pc7 = 0;
 844         p->pc8 = 0;
 845         p->pc9 = 0;
 846         p->pc10 = 0;
 847
 848         p->energy_pkg = 0;
 849         p->energy_dram = 0;
 850         p->energy_cores = 0;
 851         p->energy_gfx = 0;
 852         p->rapl_pkg_perf_status = 0;
 853         p->rapl_dram_perf_status = 0;
 854         p->pkg_temp_c = 0;
 855 }
 856 int sum_counters(struct thread_data *t, struct core_data *c,
 857         struct pkg_data *p)
 858 {
 859         average.threads.tsc += t->tsc;
 860         average.threads.aperf += t->aperf;
 861         average.threads.mperf += t->mperf;
 862         average.threads.c1 += t->c1;
 863
 864         average.threads.extra_delta32 += t->extra_delta32;
 865         average.threads.extra_delta64 += t->extra_delta64;
 866
 867         /* sum per-core values only for 1st thread in core */
 868         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
 869                 return 0;
 870
 871         average.cores.c3 += c->c3;
 872         average.cores.c6 += c->c6;
 873         average.cores.c7 += c->c7;
 874
 875         average.cores.core_temp_c = MAX(average.cores.core_temp_c, c->core_temp_c);
 876
 877         /* sum per-pkg values only for 1st core in pkg */
 878         if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
 879                 return 0;
 880
 881         if (do_skl_residency) {
 882                 average.packages.pkg_wtd_core_c0 += p->pkg_wtd_core_c0;
 883                 average.packages.pkg_any_core_c0 += p->pkg_any_core_c0;
 884                 average.packages.pkg_any_gfxe_c0 += p->pkg_any_gfxe_c0;
 885                 average.packages.pkg_both_core_gfxe_c0 += p->pkg_both_core_gfxe_c0;
 886         }
 887
 888         average.packages.pc2 += p->pc2;
 889         if (do_pc3)
 890                 average.packages.pc3 += p->pc3;
 891         if (do_pc6)
 892                 average.packages.pc6 += p->pc6;
 893         if (do_pc7)
 894                 average.packages.pc7 += p->pc7;
 895         average.packages.pc8 += p->pc8;
 896         average.packages.pc9 += p->pc9;
 897         average.packages.pc10 += p->pc10;
 898
 899         average.packages.energy_pkg += p->energy_pkg;
 900         average.packages.energy_dram += p->energy_dram;
 901         average.packages.energy_cores += p->energy_cores;
 902         average.packages.energy_gfx += p->energy_gfx;
 903
 904         average.packages.pkg_temp_c = MAX(average.packages.pkg_temp_c, p->pkg_temp_c);
 905
 906         average.packages.rapl_pkg_perf_status += p->rapl_pkg_perf_status;
 907         average.packages.rapl_dram_perf_status += p->rapl_dram_perf_status;
 908         return 0;
 909 }
 910 /*
 911  * sum the counters for all cpus in the system
 912  * compute the weighted average
 913  */
 914 void compute_average(struct thread_data *t, struct core_data *c,
 915         struct pkg_data *p)
 916 {
 917         clear_counters(&average.threads, &average.cores, &average.packages);
 918
 919         for_all_cpus(sum_counters, t, c, p);
 920
 921         average.threads.tsc /= topo.num_cpus;
 922         average.threads.aperf /= topo.num_cpus;
 923         average.threads.mperf /= topo.num_cpus;
 924         average.threads.c1 /= topo.num_cpus;
 925
 926         average.threads.extra_delta32 /= topo.num_cpus;
 927         average.threads.extra_delta32 &= 0xFFFFFFFF;
 928
 929         average.threads.extra_delta64 /= topo.num_cpus;
 930
 931         average.cores.c3 /= topo.num_cores;
 932         average.cores.c6 /= topo.num_cores;
 933         average.cores.c7 /= topo.num_cores;
 934
 935         if (do_skl_residency) {
 936                 average.packages.pkg_wtd_core_c0 /= topo.num_packages;
 937                 average.packages.pkg_any_core_c0 /= topo.num_packages;
 938                 average.packages.pkg_any_gfxe_c0 /= topo.num_packages;
 939                 average.packages.pkg_both_core_gfxe_c0 /= topo.num_packages;
 940         }
 941
 942         average.packages.pc2 /= topo.num_packages;
 943         if (do_pc3)
 944                 average.packages.pc3 /= topo.num_packages;
 945         if (do_pc6)
 946                 average.packages.pc6 /= topo.num_packages;
 947         if (do_pc7)
 948                 average.packages.pc7 /= topo.num_packages;
 949
 950         average.packages.pc8 /= topo.num_packages;
 951         average.packages.pc9 /= topo.num_packages;
 952         average.packages.pc10 /= topo.num_packages;
 953 }
 954
 955 static unsigned long long rdtsc(void)
 956 {
 957         unsigned int low, high;
 958
 959         asm volatile("rdtsc" : "=a" (low), "=d" (high));
 960
 961         return low | ((unsigned long long)high) << 32;
 962 }
 963
 964
 965 /*
 966  * get_counters(...)
 967  * migrate to cpu
 968  * acquire and record local counters for that cpu
 969  */
 970 int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 971 {
 972         int cpu = t->cpu_id;
 973         unsigned long long msr;
 974
 975         if (cpu_migrate(cpu)) {
 976                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
 977                 return -1;
 978         }
 979
 980         t->tsc = rdtsc();       /* we are running on local CPU of interest */
 981
 982         if (has_aperf) {
 983                 if (get_msr(cpu, MSR_IA32_APERF, &t->aperf))
 984                         return -3;
 985                 if (get_msr(cpu, MSR_IA32_MPERF, &t->mperf))
 986                         return -4;
 987         }
 988
 989         if (do_smi) {
 990                 if (get_msr(cpu, MSR_SMI_COUNT, &msr))
 991                         return -5;
 992                 t->smi_count = msr & 0xFFFFFFFF;
 993         }
 994         if (extra_delta_offset32) {
 995                 if (get_msr(cpu, extra_delta_offset32, &msr))
 996                         return -5;
 997                 t->extra_delta32 = msr & 0xFFFFFFFF;
 998         }
 999
1000         if (extra_delta_offset64)
1001                 if (get_msr(cpu, extra_delta_offset64, &t->extra_delta64))
1002                         return -5;
1003
1004         if (extra_msr_offset32) {
1005                 if (get_msr(cpu, extra_msr_offset32, &msr))
1006                         return -5;
1007                 t->extra_msr32 = msr & 0xFFFFFFFF;
1008         }
1009
1010         if (extra_msr_offset64)
1011                 if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64))
1012                         return -5;
1013
1014         if (use_c1_residency_msr) {
1015                 if (get_msr(cpu, MSR_CORE_C1_RES, &t->c1))
1016                         return -6;
1017         }
1018
1019         /* collect core counters only for 1st thread in core */
1020         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
1021                 return 0;
1022
1023         if (do_nhm_cstates && !do_slm_cstates && !do_knl_cstates) {
1024                 if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3))
1025                         return -6;
1026         }
1027
1028         if (do_nhm_cstates && !do_knl_cstates) {
1029                 if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6))
1030                         return -7;
1031         } else if (do_knl_cstates) {
1032                 if (get_msr(cpu, MSR_KNL_CORE_C6_RESIDENCY, &c->c6))
1033                         return -7;
1034         }
1035
1036         if (do_snb_cstates)
1037                 if (get_msr(cpu, MSR_CORE_C7_RESIDENCY, &c->c7))
1038                         return -8;
1039
1040         if (do_dts) {
1041                 if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
1042                         return -9;
1043                 c->core_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
1044         }
1045
1046
1047         /* collect package counters only for 1st core in package */
1048         if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
1049                 return 0;
1050
1051         if (do_skl_residency) {
1052                 if (get_msr(cpu, MSR_PKG_WEIGHTED_CORE_C0_RES, &p->pkg_wtd_core_c0))
1053                         return -10;
1054                 if (get_msr(cpu, MSR_PKG_ANY_CORE_C0_RES, &p->pkg_any_core_c0))
1055                         return -11;
1056                 if (get_msr(cpu, MSR_PKG_ANY_GFXE_C0_RES, &p->pkg_any_gfxe_c0))
1057                         return -12;
1058                 if (get_msr(cpu, MSR_PKG_BOTH_CORE_GFXE_C0_RES, &p->pkg_both_core_gfxe_c0))
1059                         return -13;
1060         }
1061         if (do_pc3)
1062                 if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3))
1063                         return -9;
1064         if (do_pc6)
1065                 if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6))
1066                         return -10;
1067         if (do_pc2)
1068                 if (get_msr(cpu, MSR_PKG_C2_RESIDENCY, &p->pc2))
1069                         return -11;
1070         if (do_pc7)
1071                 if (get_msr(cpu, MSR_PKG_C7_RESIDENCY, &p->pc7))
1072                         return -12;
1073         if (do_c8_c9_c10) {
1074                 if (get_msr(cpu, MSR_PKG_C8_RESIDENCY, &p->pc8))
1075                         return -13;
1076                 if (get_msr(cpu, MSR_PKG_C9_RESIDENCY, &p->pc9))
1077                         return -13;
1078                 if (get_msr(cpu, MSR_PKG_C10_RESIDENCY, &p->pc10))
1079                         return -13;
1080         }
1081         if (do_rapl & RAPL_PKG) {
1082                 if (get_msr(cpu, MSR_PKG_ENERGY_STATUS, &msr))
1083                         return -13;
1084                 p->energy_pkg = msr & 0xFFFFFFFF;
1085         }
1086         if (do_rapl & RAPL_CORES) {
1087                 if (get_msr(cpu, MSR_PP0_ENERGY_STATUS, &msr))
1088                         return -14;
1089                 p->energy_cores = msr & 0xFFFFFFFF;
1090         }
1091         if (do_rapl & RAPL_DRAM) {
1092                 if (get_msr(cpu, MSR_DRAM_ENERGY_STATUS, &msr))
1093                         return -15;
1094                 p->energy_dram = msr & 0xFFFFFFFF;
1095         }
1096         if (do_rapl & RAPL_GFX) {
1097                 if (get_msr(cpu, MSR_PP1_ENERGY_STATUS, &msr))
1098                         return -16;
1099                 p->energy_gfx = msr & 0xFFFFFFFF;
1100         }
1101         if (do_rapl & RAPL_PKG_PERF_STATUS) {
1102                 if (get_msr(cpu, MSR_PKG_PERF_STATUS, &msr))
1103                         return -16;
1104                 p->rapl_pkg_perf_status = msr & 0xFFFFFFFF;
1105         }
1106         if (do_rapl & RAPL_DRAM_PERF_STATUS) {
1107                 if (get_msr(cpu, MSR_DRAM_PERF_STATUS, &msr))
1108                         return -16;
1109                 p->rapl_dram_perf_status = msr & 0xFFFFFFFF;
1110         }
1111         if (do_ptm) {
1112                 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
1113                         return -17;
1114                 p->pkg_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
1115         }
1116         return 0;
1117 }
1118
1119 /*
1120  * MSR_PKG_CST_CONFIG_CONTROL decoding for pkg_cstate_limit:
1121  * If you change the values, note they are used both in comparisons
1122  * (>= PCL__7) and to index pkg_cstate_limit_strings[].
1123  */
1124
1125 #define PCLUKN 0 /* Unknown */
1126 #define PCLRSV 1 /* Reserved */
1127 #define PCL__0 2 /* PC0 */
1128 #define PCL__1 3 /* PC1 */
1129 #define PCL__2 4 /* PC2 */
1130 #define PCL__3 5 /* PC3 */
1131 #define PCL__4 6 /* PC4 */
1132 #define PCL__6 7 /* PC6 */
1133 #define PCL_6N 8 /* PC6 No Retention */
1134 #define PCL_6R 9 /* PC6 Retention */
1135 #define PCL__7 10 /* PC7 */
1136 #define PCL_7S 11 /* PC7 Shrink */
1137 #define PCL__8 12 /* PC8 */
1138 #define PCL__9 13 /* PC9 */
1139 #define PCLUNL 14 /* Unlimited */
1140
1141 int pkg_cstate_limit = PCLUKN;
1142 char *pkg_cstate_limit_strings[] = { "reserved", "unknown", "pc0", "pc1", "pc2",
1143         "pc3", "pc4", "pc6", "pc6n", "pc6r", "pc7", "pc7s", "pc8", "pc9", "unlimited"};
1144
1145 int nhm_pkg_cstate_limits[16] = {PCL__0, PCL__1, PCL__3, PCL__6, PCL__7, PCLRSV, PCLRSV, PCLUNL, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
1146 int snb_pkg_cstate_limits[16] = {PCL__0, PCL__2, PCL_6N, PCL_6R, PCL__7, PCL_7S, PCLRSV, PCLUNL, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
1147 int hsw_pkg_cstate_limits[16] = {PCL__0, PCL__2, PCL__3, PCL__6, PCL__7, PCL_7S, PCL__8, PCL__9, PCLUNL, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
1148 int slv_pkg_cstate_limits[16] = {PCL__0, PCL__1, PCLRSV, PCLRSV, PCL__4, PCLRSV, PCL__6, PCL__7, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
1149 int amt_pkg_cstate_limits[16] = {PCL__0, PCL__1, PCL__2, PCLRSV, PCLRSV, PCLRSV, PCL__6, PCL__7, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
1150 int phi_pkg_cstate_limits[16] = {PCL__0, PCL__2, PCL_6N, PCL_6R, PCLRSV, PCLRSV, PCLRSV, PCLUNL, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
1151
1152 static void
1153 dump_nhm_platform_info(void)
1154 {
1155         unsigned long long msr;
1156         unsigned int ratio;
1157
1158         get_msr(base_cpu, MSR_NHM_PLATFORM_INFO, &msr);
1159
1160         fprintf(stderr, "cpu%d: MSR_NHM_PLATFORM_INFO: 0x%08llx\n", base_cpu, msr);
1161
1162         ratio = (msr >> 40) & 0xFF;
1163         fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency frequency\n",
1164                 ratio, bclk, ratio * bclk);
1165
1166         ratio = (msr >> 8) & 0xFF;
1167         fprintf(stderr, "%d * %.0f = %.0f MHz base frequency\n",
1168                 ratio, bclk, ratio * bclk);
1169
1170         get_msr(base_cpu, MSR_IA32_POWER_CTL, &msr);
1171         fprintf(stderr, "cpu%d: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n",
1172                 base_cpu, msr, msr & 0x2 ? "EN" : "DIS");
1173
1174         return;
1175 }
1176
1177 static void
1178 dump_hsw_turbo_ratio_limits(void)
1179 {
1180         unsigned long long msr;
1181         unsigned int ratio;
1182
1183         get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT2, &msr);
1184
1185         fprintf(stderr, "cpu%d: MSR_TURBO_RATIO_LIMIT2: 0x%08llx\n", base_cpu, msr);
1186
1187         ratio = (msr >> 8) & 0xFF;
1188         if (ratio)
1189                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 18 active cores\n",
1190                         ratio, bclk, ratio * bclk);
1191
1192         ratio = (msr >> 0) & 0xFF;
1193         if (ratio)
1194                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 17 active cores\n",
1195                         ratio, bclk, ratio * bclk);
1196         return;
1197 }
1198
1199 static void
1200 dump_ivt_turbo_ratio_limits(void)
1201 {
1202         unsigned long long msr;
1203         unsigned int ratio;
1204
1205         get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT1, &msr);
1206
1207         fprintf(stderr, "cpu%d: MSR_TURBO_RATIO_LIMIT1: 0x%08llx\n", base_cpu, msr);
1208
1209         ratio = (msr >> 56) & 0xFF;
1210         if (ratio)
1211                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 16 active cores\n",
1212                         ratio, bclk, ratio * bclk);
1213
1214         ratio = (msr >> 48) & 0xFF;
1215         if (ratio)
1216                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 15 active cores\n",
1217                         ratio, bclk, ratio * bclk);
1218
1219         ratio = (msr >> 40) & 0xFF;
1220         if (ratio)
1221                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 14 active cores\n",
1222                         ratio, bclk, ratio * bclk);
1223
1224         ratio = (msr >> 32) & 0xFF;
1225         if (ratio)
1226                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 13 active cores\n",
1227                         ratio, bclk, ratio * bclk);
1228
1229         ratio = (msr >> 24) & 0xFF;
1230         if (ratio)
1231                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 12 active cores\n",
1232                         ratio, bclk, ratio * bclk);
1233
1234         ratio = (msr >> 16) & 0xFF;
1235         if (ratio)
1236                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 11 active cores\n",
1237                         ratio, bclk, ratio * bclk);
1238
1239         ratio = (msr >> 8) & 0xFF;
1240         if (ratio)
1241                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 10 active cores\n",
1242                         ratio, bclk, ratio * bclk);
1243
1244         ratio = (msr >> 0) & 0xFF;
1245         if (ratio)
1246                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n",
1247                         ratio, bclk, ratio * bclk);
1248         return;
1249 }
1250
1251 static void
1252 dump_nhm_turbo_ratio_limits(void)
1253 {
1254         unsigned long long msr;
1255         unsigned int ratio;
1256
1257         get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT, &msr);
1258
1259         fprintf(stderr, "cpu%d: MSR_TURBO_RATIO_LIMIT: 0x%08llx\n", base_cpu, msr);
1260
1261         ratio = (msr >> 56) & 0xFF;
1262         if (ratio)
1263                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 8 active cores\n",
1264                         ratio, bclk, ratio * bclk);
1265
1266         ratio = (msr >> 48) & 0xFF;
1267         if (ratio)
1268                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 7 active cores\n",
1269                         ratio, bclk, ratio * bclk);
1270
1271         ratio = (msr >> 40) & 0xFF;
1272         if (ratio)
1273                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 6 active cores\n",
1274                         ratio, bclk, ratio * bclk);
1275
1276         ratio = (msr >> 32) & 0xFF;
1277         if (ratio)
1278                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 5 active cores\n",
1279                         ratio, bclk, ratio * bclk);
1280
1281         ratio = (msr >> 24) & 0xFF;
1282         if (ratio)
1283                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n",
1284                         ratio, bclk, ratio * bclk);
1285
1286         ratio = (msr >> 16) & 0xFF;
1287         if (ratio)
1288                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 3 active cores\n",
1289                         ratio, bclk, ratio * bclk);
1290
1291         ratio = (msr >> 8) & 0xFF;
1292         if (ratio)
1293                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 2 active cores\n",
1294                         ratio, bclk, ratio * bclk);
1295
1296         ratio = (msr >> 0) & 0xFF;
1297         if (ratio)
1298                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n",
1299                         ratio, bclk, ratio * bclk);
1300         return;
1301 }
1302
1303 static void
1304 dump_knl_turbo_ratio_limits(void)
1305 {
1306         int cores;
1307         unsigned int ratio;
1308         unsigned long long msr;
1309         int delta_cores;
1310         int delta_ratio;
1311         int i;
1312
1313         get_msr(base_cpu, MSR_NHM_TURBO_RATIO_LIMIT, &msr);
1314
1315         fprintf(stderr, "cpu%d: MSR_NHM_TURBO_RATIO_LIMIT: 0x%08llx\n",
1316                 base_cpu, msr);
1317
1318         /**
1319          * Turbo encoding in KNL is as follows:
1320          * [7:0] -- Base value of number of active cores of bucket 1.
1321          * [15:8] -- Base value of freq ratio of bucket 1.
1322          * [20:16] -- +ve delta of number of active cores of bucket 2.
1323          * i.e. active cores of bucket 2 =
1324          * active cores of bucket 1 + delta
1325          * [23:21] -- Negative delta of freq ratio of bucket 2.
1326          * i.e. freq ratio of bucket 2 =
1327          * freq ratio of bucket 1 - delta
1328          * [28:24]-- +ve delta of number of active cores of bucket 3.
1329          * [31:29]-- -ve delta of freq ratio of bucket 3.
1330          * [36:32]-- +ve delta of number of active cores of bucket 4.
1331          * [39:37]-- -ve delta of freq ratio of bucket 4.
1332          * [44:40]-- +ve delta of number of active cores of bucket 5.
1333          * [47:45]-- -ve delta of freq ratio of bucket 5.
1334          * [52:48]-- +ve delta of number of active cores of bucket 6.
1335          * [55:53]-- -ve delta of freq ratio of bucket 6.
1336          * [60:56]-- +ve delta of number of active cores of bucket 7.
1337          * [63:61]-- -ve delta of freq ratio of bucket 7.
1338          */
1339         cores = msr & 0xFF;
1340         ratio = (msr >> 8) && 0xFF;
1341         if (ratio > 0)
1342                 fprintf(stderr,
1343                         "%d * %.0f = %.0f MHz max turbo %d active cores\n",
1344                         ratio, bclk, ratio * bclk, cores);
1345
1346         for (i = 16; i < 64; i = i + 8) {
1347                 delta_cores = (msr >> i) & 0x1F;
1348                 delta_ratio = (msr >> (i + 5)) && 0x7;
1349                 if (!delta_cores || !delta_ratio)
1350                         return;
1351                 cores = cores + delta_cores;
1352                 ratio = ratio - delta_ratio;
1353
1354                 /** -ve ratios will make successive ratio calculations
1355                  * negative. Hence return instead of carrying on.
1356                  */
1357                 if (ratio > 0)
1358                         fprintf(stderr,
1359                                 "%d * %.0f = %.0f MHz max turbo %d active cores\n",
1360                                 ratio, bclk, ratio * bclk, cores);
1361         }
1362 }
1363
1364 static void
1365 dump_nhm_cst_cfg(void)
1366 {
1367         unsigned long long msr;
1368
1369         get_msr(base_cpu, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);
1370
1371 #define SNB_C1_AUTO_UNDEMOTE              (1UL << 27)
1372 #define SNB_C3_AUTO_UNDEMOTE              (1UL << 28)
1373
1374         fprintf(stderr, "cpu%d: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", base_cpu, msr);
1375
1376         fprintf(stderr, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: %s)\n",
1377                 (msr & SNB_C3_AUTO_UNDEMOTE) ? "UNdemote-C3, " : "",
1378                 (msr & SNB_C1_AUTO_UNDEMOTE) ? "UNdemote-C1, " : "",
1379                 (msr & NHM_C3_AUTO_DEMOTE) ? "demote-C3, " : "",
1380                 (msr & NHM_C1_AUTO_DEMOTE) ? "demote-C1, " : "",
1381                 (msr & (1 << 15)) ? "" : "UN",
1382                 (unsigned int)msr & 7,
1383                 pkg_cstate_limit_strings[pkg_cstate_limit]);
1384         return;
1385 }
1386
1387 static void
1388 dump_config_tdp(void)
1389 {
1390         unsigned long long msr;
1391
1392         get_msr(base_cpu, MSR_CONFIG_TDP_NOMINAL, &msr);
1393         fprintf(stderr, "cpu%d: MSR_CONFIG_TDP_NOMINAL: 0x%08llx", base_cpu, msr);
1394         fprintf(stderr, " (base_ratio=%d)\n", (unsigned int)msr & 0xEF);
1395
1396         get_msr(base_cpu, MSR_CONFIG_TDP_LEVEL_1, &msr);
1397         fprintf(stderr, "cpu%d: MSR_CONFIG_TDP_LEVEL_1: 0x%08llx (", base_cpu, msr);
1398         if (msr) {
1399                 fprintf(stderr, "PKG_MIN_PWR_LVL1=%d ", (unsigned int)(msr >> 48) & 0xEFFF);
1400                 fprintf(stderr, "PKG_MAX_PWR_LVL1=%d ", (unsigned int)(msr >> 32) & 0xEFFF);
1401                 fprintf(stderr, "LVL1_RATIO=%d ", (unsigned int)(msr >> 16) & 0xEF);
1402                 fprintf(stderr, "PKG_TDP_LVL1=%d", (unsigned int)(msr) & 0xEFFF);
1403         }
1404         fprintf(stderr, ")\n");
1405
1406         get_msr(base_cpu, MSR_CONFIG_TDP_LEVEL_2, &msr);
1407         fprintf(stderr, "cpu%d: MSR_CONFIG_TDP_LEVEL_2: 0x%08llx (", base_cpu, msr);
1408         if (msr) {
1409                 fprintf(stderr, "PKG_MIN_PWR_LVL2=%d ", (unsigned int)(msr >> 48) & 0xEFFF);
1410                 fprintf(stderr, "PKG_MAX_PWR_LVL2=%d ", (unsigned int)(msr >> 32) & 0xEFFF);
1411                 fprintf(stderr, "LVL2_RATIO=%d ", (unsigned int)(msr >> 16) & 0xEF);
1412                 fprintf(stderr, "PKG_TDP_LVL2=%d", (unsigned int)(msr) & 0xEFFF);
1413         }
1414         fprintf(stderr, ")\n");
1415
1416         get_msr(base_cpu, MSR_CONFIG_TDP_CONTROL, &msr);
1417         fprintf(stderr, "cpu%d: MSR_CONFIG_TDP_CONTROL: 0x%08llx (", base_cpu, msr);
1418         if ((msr) & 0x3)
1419                 fprintf(stderr, "TDP_LEVEL=%d ", (unsigned int)(msr) & 0x3);
1420         fprintf(stderr, " lock=%d", (unsigned int)(msr >> 31) & 1);
1421         fprintf(stderr, ")\n");
1422
1423         get_msr(base_cpu, MSR_TURBO_ACTIVATION_RATIO, &msr);
1424         fprintf(stderr, "cpu%d: MSR_TURBO_ACTIVATION_RATIO: 0x%08llx (", base_cpu, msr);
1425         fprintf(stderr, "MAX_NON_TURBO_RATIO=%d", (unsigned int)(msr) & 0xEF);
1426         fprintf(stderr, " lock=%d", (unsigned int)(msr >> 31) & 1);
1427         fprintf(stderr, ")\n");
1428 }
1429
1430 void free_all_buffers(void)
1431 {
1432         CPU_FREE(cpu_present_set);
1433         cpu_present_set = NULL;
1434         cpu_present_set = 0;
1435
1436         CPU_FREE(cpu_affinity_set);
1437         cpu_affinity_set = NULL;
1438         cpu_affinity_setsize = 0;
1439
1440         free(thread_even);
1441         free(core_even);
1442         free(package_even);
1443
1444         thread_even = NULL;
1445         core_even = NULL;
1446         package_even = NULL;
1447
1448         free(thread_odd);
1449         free(core_odd);
1450         free(package_odd);
1451
1452         thread_odd = NULL;
1453         core_odd = NULL;
1454         package_odd = NULL;
1455
1456         free(output_buffer);
1457         output_buffer = NULL;
1458         outp = NULL;
1459 }
1460
1461 /*
1462  * Open a file, and exit on failure
1463  */
1464 FILE *fopen_or_die(const char *path, const char *mode)
1465 {
1466         FILE *filep = fopen(path, "r");
1467         if (!filep)
1468                 err(1, "%s: open failed", path);
1469         return filep;
1470 }
1471
1472 /*
1473  * Parse a file containing a single int.
1474  */
1475 int parse_int_file(const char *fmt, ...)
1476 {
1477         va_list args;
1478         char path[PATH_MAX];
1479         FILE *filep;
1480         int value;
1481
1482         va_start(args, fmt);
1483         vsnprintf(path, sizeof(path), fmt, args);
1484         va_end(args);
1485         filep = fopen_or_die(path, "r");
1486         if (fscanf(filep, "%d", &value) != 1)
1487                 err(1, "%s: failed to parse number from file", path);
1488         fclose(filep);
1489         return value;
1490 }
1491
1492 /*
1493  * get_cpu_position_in_core(cpu)
1494  * return the position of the CPU among its HT siblings in the core
1495  * return -1 if the sibling is not in list
1496  */
1497 int get_cpu_position_in_core(int cpu)
1498 {
1499         char path[64];
1500         FILE *filep;
1501         int this_cpu;
1502         char character;
1503         int i;
1504
1505         sprintf(path,
1506                 "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list",
1507                 cpu);
1508         filep = fopen(path, "r");
1509         if (filep == NULL) {
1510                 perror(path);
1511                 exit(1);
1512         }
1513
1514         for (i = 0; i < topo.num_threads_per_core; i++) {
1515                 fscanf(filep, "%d", &this_cpu);
1516                 if (this_cpu == cpu) {
1517                         fclose(filep);
1518                         return i;
1519                 }
1520
1521                 /* Account for no separator after last thread*/
1522                 if (i != (topo.num_threads_per_core - 1))
1523                         fscanf(filep, "%c", &character);
1524         }
1525
1526         fclose(filep);
1527         return -1;
1528 }
1529
1530 /*
1531  * cpu_is_first_core_in_package(cpu)
1532  * return 1 if given CPU is 1st core in package
1533  */
1534 int cpu_is_first_core_in_package(int cpu)
1535 {
1536         return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu);
1537 }
1538
1539 int get_physical_package_id(int cpu)
1540 {
1541         return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu);
1542 }
1543
1544 int get_core_id(int cpu)
1545 {
1546         return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_id", cpu);
1547 }
1548
1549 int get_num_ht_siblings(int cpu)
1550 {
1551         char path[80];
1552         FILE *filep;
1553         int sib1;
1554         int matches = 0;
1555         char character;
1556         char str[100];
1557         char *ch;
1558
1559         sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu);
1560         filep = fopen_or_die(path, "r");
1561
1562         /*
1563          * file format:
1564          * A ',' separated or '-' separated set of numbers
1565          * (eg 1-2 or 1,3,4,5)
1566          */
1567         fscanf(filep, "%d%c\n", &sib1, &character);
1568         fseek(filep, 0, SEEK_SET);
1569         fgets(str, 100, filep);
1570         ch = strchr(str, character);
1571         while (ch != NULL) {
1572                 matches++;
1573                 ch = strchr(ch+1, character);
1574         }
1575
1576         fclose(filep);
1577         return matches+1;
1578 }
1579
1580 /*
1581  * run func(thread, core, package) in topology order
1582  * skip non-present cpus
1583  */
1584
1585 int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *,
1586         struct pkg_data *, struct thread_data *, struct core_data *,
1587         struct pkg_data *), struct thread_data *thread_base,
1588         struct core_data *core_base, struct pkg_data *pkg_base,
1589         struct thread_data *thread_base2, struct core_data *core_base2,
1590         struct pkg_data *pkg_base2)
1591 {
1592         int retval, pkg_no, core_no, thread_no;
1593
1594         for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
1595                 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
1596                         for (thread_no = 0; thread_no <
1597                                 topo.num_threads_per_core; ++thread_no) {
1598                                 struct thread_data *t, *t2;
1599                                 struct core_data *c, *c2;
1600                                 struct pkg_data *p, *p2;
1601
1602                                 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
1603
1604                                 if (cpu_is_not_present(t->cpu_id))
1605                                         continue;
1606
1607                                 t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no);
1608
1609                                 c = GET_CORE(core_base, core_no, pkg_no);
1610                                 c2 = GET_CORE(core_base2, core_no, pkg_no);
1611
1612                                 p = GET_PKG(pkg_base, pkg_no);
1613                                 p2 = GET_PKG(pkg_base2, pkg_no);
1614
1615                                 retval = func(t, c, p, t2, c2, p2);
1616                                 if (retval)
1617                                         return retval;
1618                         }
1619                 }
1620         }
1621         return 0;
1622 }
1623
1624 /*
1625  * run func(cpu) on every cpu in /proc/stat
1626  * return max_cpu number
1627  */
1628 int for_all_proc_cpus(int (func)(int))
1629 {
1630         FILE *fp;
1631         int cpu_num;
1632         int retval;
1633
1634         fp = fopen_or_die(proc_stat, "r");
1635
1636         retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n");
1637         if (retval != 0)
1638                 err(1, "%s: failed to parse format", proc_stat);
1639
1640         while (1) {
1641                 retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num);
1642                 if (retval != 1)
1643                         break;
1644
1645                 retval = func(cpu_num);
1646                 if (retval) {
1647                         fclose(fp);
1648                         return(retval);
1649                 }
1650         }
1651         fclose(fp);
1652         return 0;
1653 }
1654
1655 void re_initialize(void)
1656 {
1657         free_all_buffers();
1658         setup_all_buffers();
1659         printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus);
1660 }
1661
1662
1663 /*
1664  * count_cpus()
1665  * remember the last one seen, it will be the max
1666  */
1667 int count_cpus(int cpu)
1668 {
1669         if (topo.max_cpu_num < cpu)
1670                 topo.max_cpu_num = cpu;
1671
1672         topo.num_cpus += 1;
1673         return 0;
1674 }
1675 int mark_cpu_present(int cpu)
1676 {
1677         CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set);
1678         return 0;
1679 }
1680
1681 void turbostat_loop()
1682 {
1683         int retval;
1684         int restarted = 0;
1685
1686 restart:
1687         restarted++;
1688
1689         retval = for_all_cpus(get_counters, EVEN_COUNTERS);
1690         if (retval < -1) {
1691                 exit(retval);
1692         } else if (retval == -1) {
1693                 if (restarted > 1) {
1694                         exit(retval);
1695                 }
1696                 re_initialize();
1697                 goto restart;
1698         }
1699         restarted = 0;
1700         gettimeofday(&tv_even, (struct timezone *)NULL);
1701
1702         while (1) {
1703                 if (for_all_proc_cpus(cpu_is_not_present)) {
1704                         re_initialize();
1705                         goto restart;
1706                 }
1707                 sleep(interval_sec);
1708                 retval = for_all_cpus(get_counters, ODD_COUNTERS);
1709                 if (retval < -1) {
1710                         exit(retval);
1711                 } else if (retval == -1) {
1712                         re_initialize();
1713                         goto restart;
1714                 }
1715                 gettimeofday(&tv_odd, (struct timezone *)NULL);
1716                 timersub(&tv_odd, &tv_even, &tv_delta);
1717                 for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
1718                 compute_average(EVEN_COUNTERS);
1719                 format_all_counters(EVEN_COUNTERS);
1720                 flush_stdout();
1721                 sleep(interval_sec);
1722                 retval = for_all_cpus(get_counters, EVEN_COUNTERS);
1723                 if (retval < -1) {
1724                         exit(retval);
1725                 } else if (retval == -1) {
1726                         re_initialize();
1727                         goto restart;
1728                 }
1729                 gettimeofday(&tv_even, (struct timezone *)NULL);
1730                 timersub(&tv_even, &tv_odd, &tv_delta);
1731                 for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS);
1732                 compute_average(ODD_COUNTERS);
1733                 format_all_counters(ODD_COUNTERS);
1734                 flush_stdout();
1735         }
1736 }
1737
1738 void check_dev_msr()
1739 {
1740         struct stat sb;
1741         char pathname[32];
1742
1743         sprintf(pathname, "/dev/cpu/%d/msr", base_cpu);
1744         if (stat(pathname, &sb))
1745                 if (system("/sbin/modprobe msr > /dev/null 2>&1"))
1746                         err(-5, "no /dev/cpu/0/msr, Try \"# modprobe msr\" ");
1747 }
1748
1749 void check_permissions()
1750 {
1751         struct __user_cap_header_struct cap_header_data;
1752         cap_user_header_t cap_header = &cap_header_data;
1753         struct __user_cap_data_struct cap_data_data;
1754         cap_user_data_t cap_data = &cap_data_data;
1755         extern int capget(cap_user_header_t hdrp, cap_user_data_t datap);
1756         int do_exit = 0;
1757         char pathname[32];
1758
1759         /* check for CAP_SYS_RAWIO */
1760         cap_header->pid = getpid();
1761         cap_header->version = _LINUX_CAPABILITY_VERSION;
1762         if (capget(cap_header, cap_data) < 0)
1763                 err(-6, "capget(2) failed");
1764
1765         if ((cap_data->effective & (1 << CAP_SYS_RAWIO)) == 0) {
1766                 do_exit++;
1767                 warnx("capget(CAP_SYS_RAWIO) failed,"
1768                         " try \"# setcap cap_sys_rawio=ep %s\"", progname);
1769         }
1770
1771         /* test file permissions */
1772         sprintf(pathname, "/dev/cpu/%d/msr", base_cpu);
1773         if (euidaccess(pathname, R_OK)) {
1774                 do_exit++;
1775                 warn("/dev/cpu/0/msr open failed, try chown or chmod +r /dev/cpu/*/msr");
1776         }
1777
1778         /* if all else fails, thell them to be root */
1779         if (do_exit)
1780                 if (getuid() != 0)
1781                         warnx("... or simply run as root");
1782
1783         if (do_exit)
1784                 exit(-6);
1785 }
1786
1787 /*
1788  * NHM adds support for additional MSRs:
1789  *
1790  * MSR_SMI_COUNT                   0x00000034
1791  *
1792  * MSR_NHM_PLATFORM_INFO           0x000000ce
1793  * MSR_NHM_SNB_PKG_CST_CFG_CTL     0x000000e2
1794  *
1795  * MSR_PKG_C3_RESIDENCY            0x000003f8
1796  * MSR_PKG_C6_RESIDENCY            0x000003f9
1797  * MSR_CORE_C3_RESIDENCY           0x000003fc
1798  * MSR_CORE_C6_RESIDENCY           0x000003fd
1799  *
1800  * Side effect:
1801  * sets global pkg_cstate_limit to decode MSR_NHM_SNB_PKG_CST_CFG_CTL
1802  */
1803 int probe_nhm_msrs(unsigned int family, unsigned int model)
1804 {
1805         unsigned long long msr;
1806         int *pkg_cstate_limits;
1807
1808         if (!genuine_intel)
1809                 return 0;
1810
1811         if (family != 6)
1812                 return 0;
1813
1814         switch (model) {
1815         case 0x1A:      /* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */
1816         case 0x1E:      /* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */
1817         case 0x1F:      /* Core i7 and i5 Processor - Nehalem */
1818         case 0x25:      /* Westmere Client - Clarkdale, Arrandale */
1819         case 0x2C:      /* Westmere EP - Gulftown */
1820         case 0x2E:      /* Nehalem-EX Xeon - Beckton */
1821         case 0x2F:      /* Westmere-EX Xeon - Eagleton */
1822                 pkg_cstate_limits = nhm_pkg_cstate_limits;
1823                 break;
1824         case 0x2A:      /* SNB */
1825         case 0x2D:      /* SNB Xeon */
1826         case 0x3A:      /* IVB */
1827         case 0x3E:      /* IVB Xeon */
1828                 pkg_cstate_limits = snb_pkg_cstate_limits;
1829                 break;
1830         case 0x3C:      /* HSW */
1831         case 0x3F:      /* HSX */
1832         case 0x45:      /* HSW */
1833         case 0x46:      /* HSW */
1834         case 0x3D:      /* BDW */
1835         case 0x47:      /* BDW */
1836         case 0x4F:      /* BDX */
1837         case 0x56:      /* BDX-DE */
1838         case 0x4E:      /* SKL */
1839         case 0x5E:      /* SKL */
1840                 pkg_cstate_limits = hsw_pkg_cstate_limits;
1841                 break;
1842         case 0x37:      /* BYT */
1843         case 0x4D:      /* AVN */
1844                 pkg_cstate_limits = slv_pkg_cstate_limits;
1845                 break;
1846         case 0x4C:      /* AMT */
1847                 pkg_cstate_limits = amt_pkg_cstate_limits;
1848                 break;
1849         case 0x57:      /* PHI */
1850                 pkg_cstate_limits = phi_pkg_cstate_limits;
1851                 break;
1852         default:
1853                 return 0;
1854         }
1855         get_msr(base_cpu, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);
1856
1857         pkg_cstate_limit = pkg_cstate_limits[msr & 0xF];
1858
1859         return 1;
1860 }
1861 int has_nhm_turbo_ratio_limit(unsigned int family, unsigned int model)
1862 {
1863         switch (model) {
1864         /* Nehalem compatible, but do not include turbo-ratio limit support */
1865         case 0x2E:      /* Nehalem-EX Xeon - Beckton */
1866         case 0x2F:      /* Westmere-EX Xeon - Eagleton */
1867                 return 0;
1868         default:
1869                 return 1;
1870         }
1871 }
1872 int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model)
1873 {
1874         if (!genuine_intel)
1875                 return 0;
1876
1877         if (family != 6)
1878                 return 0;
1879
1880         switch (model) {
1881         case 0x3E:      /* IVB Xeon */
1882         case 0x3F:      /* HSW Xeon */
1883                 return 1;
1884         default:
1885                 return 0;
1886         }
1887 }
1888 int has_hsw_turbo_ratio_limit(unsigned int family, unsigned int model)
1889 {
1890         if (!genuine_intel)
1891                 return 0;
1892
1893         if (family != 6)
1894                 return 0;
1895
1896         switch (model) {
1897         case 0x3F:      /* HSW Xeon */
1898                 return 1;
1899         default:
1900                 return 0;
1901         }
1902 }
1903
1904 int has_knl_turbo_ratio_limit(unsigned int family, unsigned int model)
1905 {
1906         if (!genuine_intel)
1907                 return 0;
1908
1909         if (family != 6)
1910                 return 0;
1911
1912         switch (model) {
1913         case 0x57:      /* Knights Landing */
1914                 return 1;
1915         default:
1916                 return 0;
1917         }
1918 }
1919 int has_config_tdp(unsigned int family, unsigned int model)
1920 {
1921         if (!genuine_intel)
1922                 return 0;
1923
1924         if (family != 6)
1925                 return 0;
1926
1927         switch (model) {
1928         case 0x3A:      /* IVB */
1929         case 0x3E:      /* IVB Xeon */
1930
1931         case 0x3C:      /* HSW */
1932         case 0x3F:      /* HSX */
1933         case 0x45:      /* HSW */
1934         case 0x46:      /* HSW */
1935         case 0x3D:      /* BDW */
1936         case 0x47:      /* BDW */
1937         case 0x4F:      /* BDX */
1938         case 0x56:      /* BDX-DE */
1939         case 0x4E:      /* SKL */
1940         case 0x5E:      /* SKL */
1941
1942         case 0x57:      /* Knights Landing */
1943                 return 1;
1944         default:
1945                 return 0;
1946         }
1947 }
1948
1949 static void
1950 dump_cstate_pstate_config_info(family, model)
1951 {
1952         if (!do_nhm_platform_info)
1953                 return;
1954
1955         dump_nhm_platform_info();
1956
1957         if (has_hsw_turbo_ratio_limit(family, model))
1958                 dump_hsw_turbo_ratio_limits();
1959
1960         if (has_ivt_turbo_ratio_limit(family, model))
1961                 dump_ivt_turbo_ratio_limits();
1962
1963         if (has_nhm_turbo_ratio_limit(family, model))
1964                 dump_nhm_turbo_ratio_limits();
1965
1966         if (has_knl_turbo_ratio_limit(family, model))
1967                 dump_knl_turbo_ratio_limits();
1968
1969         if (has_config_tdp(family, model))
1970                 dump_config_tdp();
1971
1972         dump_nhm_cst_cfg();
1973 }
1974
1975
1976 /*
1977  * print_epb()
1978  * Decode the ENERGY_PERF_BIAS MSR
1979  */
1980 int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1981 {
1982         unsigned long long msr;
1983         char *epb_string;
1984         int cpu;
1985
1986         if (!has_epb)
1987                 return 0;
1988
1989         cpu = t->cpu_id;
1990
1991         /* EPB is per-package */
1992         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
1993                 return 0;
1994
1995         if (cpu_migrate(cpu)) {
1996                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
1997                 return -1;
1998         }
1999
2000         if (get_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, &msr))
2001                 return 0;
2002
2003         switch (msr & 0xF) {
2004         case ENERGY_PERF_BIAS_PERFORMANCE:
2005                 epb_string = "performance";
2006                 break;
2007         case ENERGY_PERF_BIAS_NORMAL:
2008                 epb_string = "balanced";
2009                 break;
2010         case ENERGY_PERF_BIAS_POWERSAVE:
2011                 epb_string = "powersave";
2012                 break;
2013         default:
2014                 epb_string = "custom";
2015                 break;
2016         }
2017         fprintf(stderr, "cpu%d: MSR_IA32_ENERGY_PERF_BIAS: 0x%08llx (%s)\n", cpu, msr, epb_string);
2018
2019         return 0;
2020 }
2021
2022 /*
2023  * print_perf_limit()
2024  */
2025 int print_perf_limit(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2026 {
2027         unsigned long long msr;
2028         int cpu;
2029
2030         cpu = t->cpu_id;
2031
2032         /* per-package */
2033         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
2034                 return 0;
2035
2036         if (cpu_migrate(cpu)) {
2037                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
2038                 return -1;
2039         }
2040
2041         if (do_core_perf_limit_reasons) {
2042                 get_msr(cpu, MSR_CORE_PERF_LIMIT_REASONS, &msr);
2043                 fprintf(stderr, "cpu%d: MSR_CORE_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
2044                 fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)",
2045                         (msr & 1 << 15) ? "bit15, " : "",
2046                         (msr & 1 << 14) ? "bit14, " : "",
2047                         (msr & 1 << 13) ? "Transitions, " : "",
2048                         (msr & 1 << 12) ? "MultiCoreTurbo, " : "",
2049                         (msr & 1 << 11) ? "PkgPwrL2, " : "",
2050                         (msr & 1 << 10) ? "PkgPwrL1, " : "",
2051                         (msr & 1 << 9) ? "CorePwr, " : "",
2052                         (msr & 1 << 8) ? "Amps, " : "",
2053                         (msr & 1 << 6) ? "VR-Therm, " : "",
2054                         (msr & 1 << 5) ? "Auto-HWP, " : "",
2055                         (msr & 1 << 4) ? "Graphics, " : "",
2056                         (msr & 1 << 2) ? "bit2, " : "",
2057                         (msr & 1 << 1) ? "ThermStatus, " : "",
2058                         (msr & 1 << 0) ? "PROCHOT, " : "");
2059                 fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)\n",
2060                         (msr & 1 << 31) ? "bit31, " : "",
2061                         (msr & 1 << 30) ? "bit30, " : "",
2062                         (msr & 1 << 29) ? "Transitions, " : "",
2063                         (msr & 1 << 28) ? "MultiCoreTurbo, " : "",
2064                         (msr & 1 << 27) ? "PkgPwrL2, " : "",
2065                         (msr & 1 << 26) ? "PkgPwrL1, " : "",
2066                         (msr & 1 << 25) ? "CorePwr, " : "",
2067                         (msr & 1 << 24) ? "Amps, " : "",
2068                         (msr & 1 << 22) ? "VR-Therm, " : "",
2069                         (msr & 1 << 21) ? "Auto-HWP, " : "",
2070                         (msr & 1 << 20) ? "Graphics, " : "",
2071                         (msr & 1 << 18) ? "bit18, " : "",
2072                         (msr & 1 << 17) ? "ThermStatus, " : "",
2073                         (msr & 1 << 16) ? "PROCHOT, " : "");
2074
2075         }
2076         if (do_gfx_perf_limit_reasons) {
2077                 get_msr(cpu, MSR_GFX_PERF_LIMIT_REASONS, &msr);
2078                 fprintf(stderr, "cpu%d: MSR_GFX_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
2079                 fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s)",
2080                         (msr & 1 << 0) ? "PROCHOT, " : "",
2081                         (msr & 1 << 1) ? "ThermStatus, " : "",
2082                         (msr & 1 << 4) ? "Graphics, " : "",
2083                         (msr & 1 << 6) ? "VR-Therm, " : "",
2084                         (msr & 1 << 8) ? "Amps, " : "",
2085                         (msr & 1 << 9) ? "GFXPwr, " : "",
2086                         (msr & 1 << 10) ? "PkgPwrL1, " : "",
2087                         (msr & 1 << 11) ? "PkgPwrL2, " : "");
2088                 fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s)\n",
2089                         (msr & 1 << 16) ? "PROCHOT, " : "",
2090                         (msr & 1 << 17) ? "ThermStatus, " : "",
2091                         (msr & 1 << 20) ? "Graphics, " : "",
2092                         (msr & 1 << 22) ? "VR-Therm, " : "",
2093                         (msr & 1 << 24) ? "Amps, " : "",
2094                         (msr & 1 << 25) ? "GFXPwr, " : "",
2095                         (msr & 1 << 26) ? "PkgPwrL1, " : "",
2096                         (msr & 1 << 27) ? "PkgPwrL2, " : "");
2097         }
2098         if (do_ring_perf_limit_reasons) {
2099                 get_msr(cpu, MSR_RING_PERF_LIMIT_REASONS, &msr);
2100                 fprintf(stderr, "cpu%d: MSR_RING_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
2101                 fprintf(stderr, " (Active: %s%s%s%s%s%s)",
2102                         (msr & 1 << 0) ? "PROCHOT, " : "",
2103                         (msr & 1 << 1) ? "ThermStatus, " : "",
2104                         (msr & 1 << 6) ? "VR-Therm, " : "",
2105                         (msr & 1 << 8) ? "Amps, " : "",
2106                         (msr & 1 << 10) ? "PkgPwrL1, " : "",
2107                         (msr & 1 << 11) ? "PkgPwrL2, " : "");
2108                 fprintf(stderr, " (Logged: %s%s%s%s%s%s)\n",
2109                         (msr & 1 << 16) ? "PROCHOT, " : "",
2110                         (msr & 1 << 17) ? "ThermStatus, " : "",
2111                         (msr & 1 << 22) ? "VR-Therm, " : "",
2112                         (msr & 1 << 24) ? "Amps, " : "",
2113                         (msr & 1 << 26) ? "PkgPwrL1, " : "",
2114                         (msr & 1 << 27) ? "PkgPwrL2, " : "");
2115         }
2116         return 0;
2117 }
2118
2119 #define RAPL_POWER_GRANULARITY  0x7FFF  /* 15 bit power granularity */
2120 #define RAPL_TIME_GRANULARITY   0x3F /* 6 bit time granularity */
2121
2122 double get_tdp(model)
2123 {
2124         unsigned long long msr;
2125
2126         if (do_rapl & RAPL_PKG_POWER_INFO)
2127                 if (!get_msr(base_cpu, MSR_PKG_POWER_INFO, &msr))
2128                         return ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units;
2129
2130         switch (model) {
2131         case 0x37:
2132         case 0x4D:
2133                 return 30.0;
2134         default:
2135                 return 135.0;
2136         }
2137 }
2138
2139 /*
2140  * rapl_dram_energy_units_probe()
2141  * Energy units are either hard-coded, or come from RAPL Energy Unit MSR.
2142  */
2143 static double
2144 rapl_dram_energy_units_probe(int  model, double rapl_energy_units)
2145 {
2146         /* only called for genuine_intel, family 6 */
2147
2148         switch (model) {
2149         case 0x3F:      /* HSX */
2150         case 0x4F:      /* BDX */
2151         case 0x56:      /* BDX-DE */
2152         case 0x57:      /* KNL */
2153                 return (rapl_dram_energy_units = 15.3 / 1000000);
2154         default:
2155                 return (rapl_energy_units);
2156         }
2157 }
2158
2159
2160 /*
2161  * rapl_probe()
2162  *
2163  * sets do_rapl, rapl_power_units, rapl_energy_units, rapl_time_units
2164  */
2165 void rapl_probe(unsigned int family, unsigned int model)
2166 {
2167         unsigned long long msr;
2168         unsigned int time_unit;
2169         double tdp;
2170
2171         if (!genuine_intel)
2172                 return;
2173
2174         if (family != 6)
2175                 return;
2176
2177         switch (model) {
2178         case 0x2A:
2179         case 0x3A:
2180         case 0x3C:      /* HSW */
2181         case 0x45:      /* HSW */
2182         case 0x46:      /* HSW */
2183         case 0x3D:      /* BDW */
2184         case 0x47:      /* BDW */
2185                 do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_GFX | RAPL_PKG_POWER_INFO;
2186                 break;
2187         case 0x4E:      /* SKL */
2188         case 0x5E:      /* SKL */
2189                 do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO;
2190                 break;
2191         case 0x3F:      /* HSX */
2192         case 0x4F:      /* BDX */
2193         case 0x56:      /* BDX-DE */
2194         case 0x57:      /* KNL */
2195                 do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_POWER_INFO | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO;
2196                 break;
2197         case 0x2D:
2198         case 0x3E:
2199                 do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_DRAM | RAPL_DRAM_POWER_INFO | RAPL_PKG_PERF_STATUS | RAPL_DRAM_PERF_STATUS | RAPL_PKG_POWER_INFO;
2200                 break;
2201         case 0x37:      /* BYT */
2202         case 0x4D:      /* AVN */
2203                 do_rapl = RAPL_PKG | RAPL_CORES ;
2204                 break;
2205         default:
2206                 return;
2207         }
2208
2209         /* units on package 0, verify later other packages match */
2210         if (get_msr(base_cpu, MSR_RAPL_POWER_UNIT, &msr))
2211                 return;
2212
2213         rapl_power_units = 1.0 / (1 << (msr & 0xF));
2214         if (model == 0x37)
2215                 rapl_energy_units = 1.0 * (1 << (msr >> 8 & 0x1F)) / 1000000;
2216         else
2217                 rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F));
2218
2219         rapl_dram_energy_units = rapl_dram_energy_units_probe(model, rapl_energy_units);
2220
2221         time_unit = msr >> 16 & 0xF;
2222         if (time_unit == 0)
2223                 time_unit = 0xA;
2224
2225         rapl_time_units = 1.0 / (1 << (time_unit));
2226
2227         tdp = get_tdp(model);
2228
2229         rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp;
2230         if (debug)
2231                 fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp);
2232
2233         return;
2234 }
2235
2236 void perf_limit_reasons_probe(family, model)
2237 {
2238         if (!genuine_intel)
2239                 return;
2240
2241         if (family != 6)
2242                 return;
2243
2244         switch (model) {
2245         case 0x3C:      /* HSW */
2246         case 0x45:      /* HSW */
2247         case 0x46:      /* HSW */
2248                 do_gfx_perf_limit_reasons = 1;
2249         case 0x3F:      /* HSX */
2250                 do_core_perf_limit_reasons = 1;
2251                 do_ring_perf_limit_reasons = 1;
2252         default:
2253                 return;
2254         }
2255 }
2256
2257 int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2258 {
2259         unsigned long long msr;
2260         unsigned int dts;
2261         int cpu;
2262
2263         if (!(do_dts || do_ptm))
2264                 return 0;
2265
2266         cpu = t->cpu_id;
2267
2268         /* DTS is per-core, no need to print for each thread */
2269         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
2270                 return 0;
2271
2272         if (cpu_migrate(cpu)) {
2273                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
2274                 return -1;
2275         }
2276
2277         if (do_ptm && (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) {
2278                 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
2279                         return 0;
2280
2281                 dts = (msr >> 16) & 0x7F;
2282                 fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_STATUS: 0x%08llx (%d C)\n",
2283                         cpu, msr, tcc_activation_temp - dts);
2284
2285 #ifdef  THERM_DEBUG
2286                 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &msr))
2287                         return 0;
2288
2289                 dts = (msr >> 16) & 0x7F;
2290                 dts2 = (msr >> 8) & 0x7F;
2291                 fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
2292                         cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
2293 #endif
2294         }
2295
2296
2297         if (do_dts) {
2298                 unsigned int resolution;
2299
2300                 if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
2301                         return 0;
2302
2303                 dts = (msr >> 16) & 0x7F;
2304                 resolution = (msr >> 27) & 0xF;
2305                 fprintf(stderr, "cpu%d: MSR_IA32_THERM_STATUS: 0x%08llx (%d C +/- %d)\n",
2306                         cpu, msr, tcc_activation_temp - dts, resolution);
2307
2308 #ifdef THERM_DEBUG
2309                 if (get_msr(cpu, MSR_IA32_THERM_INTERRUPT, &msr))
2310                         return 0;
2311
2312                 dts = (msr >> 16) & 0x7F;
2313                 dts2 = (msr >> 8) & 0x7F;
2314                 fprintf(stderr, "cpu%d: MSR_IA32_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
2315                         cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
2316 #endif
2317         }
2318
2319         return 0;
2320 }
2321
2322 void print_power_limit_msr(int cpu, unsigned long long msr, char *label)
2323 {
2324         fprintf(stderr, "cpu%d: %s: %sabled (%f Watts, %f sec, clamp %sabled)\n",
2325                 cpu, label,
2326                 ((msr >> 15) & 1) ? "EN" : "DIS",
2327                 ((msr >> 0) & 0x7FFF) * rapl_power_units,
2328                 (1.0 + (((msr >> 22) & 0x3)/4.0)) * (1 << ((msr >> 17) & 0x1F)) * rapl_time_units,
2329                 (((msr >> 16) & 1) ? "EN" : "DIS"));
2330
2331         return;
2332 }
2333
2334 int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2335 {
2336         unsigned long long msr;
2337         int cpu;
2338
2339         if (!do_rapl)
2340                 return 0;
2341
2342         /* RAPL counters are per package, so print only for 1st thread/package */
2343         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
2344                 return 0;
2345
2346         cpu = t->cpu_id;
2347         if (cpu_migrate(cpu)) {
2348                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
2349                 return -1;
2350         }
2351
2352         if (get_msr(cpu, MSR_RAPL_POWER_UNIT, &msr))
2353                 return -1;
2354
2355         if (debug) {
2356                 fprintf(stderr, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx "
2357                         "(%f Watts, %f Joules, %f sec.)\n", cpu, msr,
2358                         rapl_power_units, rapl_energy_units, rapl_time_units);
2359         }
2360         if (do_rapl & RAPL_PKG_POWER_INFO) {
2361
2362                 if (get_msr(cpu, MSR_PKG_POWER_INFO, &msr))
2363                         return -5;
2364
2365
2366                 fprintf(stderr, "cpu%d: MSR_PKG_POWER_INFO: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
2367                         cpu, msr,
2368                         ((msr >>  0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2369                         ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2370                         ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2371                         ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
2372
2373         }
2374         if (do_rapl & RAPL_PKG) {
2375
2376                 if (get_msr(cpu, MSR_PKG_POWER_LIMIT, &msr))
2377                         return -9;
2378
2379                 fprintf(stderr, "cpu%d: MSR_PKG_POWER_LIMIT: 0x%08llx (%slocked)\n",
2380                         cpu, msr, (msr >> 63) & 1 ? "": "UN");
2381
2382                 print_power_limit_msr(cpu, msr, "PKG Limit #1");
2383                 fprintf(stderr, "cpu%d: PKG Limit #2: %sabled (%f Watts, %f* sec, clamp %sabled)\n",
2384                         cpu,
2385                         ((msr >> 47) & 1) ? "EN" : "DIS",
2386                         ((msr >> 32) & 0x7FFF) * rapl_power_units,
2387                         (1.0 + (((msr >> 54) & 0x3)/4.0)) * (1 << ((msr >> 49) & 0x1F)) * rapl_time_units,
2388                         ((msr >> 48) & 1) ? "EN" : "DIS");
2389         }
2390
2391         if (do_rapl & RAPL_DRAM_POWER_INFO) {
2392                 if (get_msr(cpu, MSR_DRAM_POWER_INFO, &msr))
2393                         return -6;
2394
2395                 fprintf(stderr, "cpu%d: MSR_DRAM_POWER_INFO,: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
2396                         cpu, msr,
2397                         ((msr >>  0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2398                         ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2399                         ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2400                         ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
2401         }
2402         if (do_rapl & RAPL_DRAM) {
2403                 if (get_msr(cpu, MSR_DRAM_POWER_LIMIT, &msr))
2404                         return -9;
2405                 fprintf(stderr, "cpu%d: MSR_DRAM_POWER_LIMIT: 0x%08llx (%slocked)\n",
2406                                 cpu, msr, (msr >> 31) & 1 ? "": "UN");
2407
2408                 print_power_limit_msr(cpu, msr, "DRAM Limit");
2409         }
2410         if (do_rapl & RAPL_CORE_POLICY) {
2411                 if (debug) {
2412                         if (get_msr(cpu, MSR_PP0_POLICY, &msr))
2413                                 return -7;
2414
2415                         fprintf(stderr, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF);
2416                 }
2417         }
2418         if (do_rapl & RAPL_CORES) {
2419                 if (debug) {
2420
2421                         if (get_msr(cpu, MSR_PP0_POWER_LIMIT, &msr))
2422                                 return -9;
2423                         fprintf(stderr, "cpu%d: MSR_PP0_POWER_LIMIT: 0x%08llx (%slocked)\n",
2424                                         cpu, msr, (msr >> 31) & 1 ? "": "UN");
2425                         print_power_limit_msr(cpu, msr, "Cores Limit");
2426                 }
2427         }
2428         if (do_rapl & RAPL_GFX) {
2429                 if (debug) {
2430                         if (get_msr(cpu, MSR_PP1_POLICY, &msr))
2431                                 return -8;
2432
2433                         fprintf(stderr, "cpu%d: MSR_PP1_POLICY: %lld\n", cpu, msr & 0xF);
2434
2435                         if (get_msr(cpu, MSR_PP1_POWER_LIMIT, &msr))
2436                                 return -9;
2437                         fprintf(stderr, "cpu%d: MSR_PP1_POWER_LIMIT: 0x%08llx (%slocked)\n",
2438                                         cpu, msr, (msr >> 31) & 1 ? "": "UN");
2439                         print_power_limit_msr(cpu, msr, "GFX Limit");
2440                 }
2441         }
2442         return 0;
2443 }
2444
2445 /*
2446  * SNB adds support for additional MSRs:
2447  *
2448  * MSR_PKG_C7_RESIDENCY            0x000003fa
2449  * MSR_CORE_C7_RESIDENCY           0x000003fe
2450  * MSR_PKG_C2_RESIDENCY            0x0000060d
2451  */
2452
2453 int has_snb_msrs(unsigned int family, unsigned int model)
2454 {
2455         if (!genuine_intel)
2456                 return 0;
2457
2458         switch (model) {
2459         case 0x2A:
2460         case 0x2D:
2461         case 0x3A:      /* IVB */
2462         case 0x3E:      /* IVB Xeon */
2463         case 0x3C:      /* HSW */
2464         case 0x3F:      /* HSW */
2465         case 0x45:      /* HSW */
2466         case 0x46:      /* HSW */
2467         case 0x3D:      /* BDW */
2468         case 0x47:      /* BDW */
2469         case 0x4F:      /* BDX */
2470         case 0x56:      /* BDX-DE */
2471         case 0x4E:      /* SKL */
2472         case 0x5E:      /* SKL */
2473                 return 1;
2474         }
2475         return 0;
2476 }
2477
2478 /*
2479  * HSW adds support for additional MSRs:
2480  *
2481  * MSR_PKG_C8_RESIDENCY            0x00000630
2482  * MSR_PKG_C9_RESIDENCY            0x00000631
2483  * MSR_PKG_C10_RESIDENCY           0x00000632
2484  */
2485 int has_hsw_msrs(unsigned int family, unsigned int model)
2486 {
2487         if (!genuine_intel)
2488                 return 0;
2489
2490         switch (model) {
2491         case 0x45:      /* HSW */
2492         case 0x3D:      /* BDW */
2493         case 0x4E:      /* SKL */
2494         case 0x5E:      /* SKL */
2495                 return 1;
2496         }
2497         return 0;
2498 }
2499
2500 /*
2501  * SKL adds support for additional MSRS:
2502  *
2503  * MSR_PKG_WEIGHTED_CORE_C0_RES    0x00000658
2504  * MSR_PKG_ANY_CORE_C0_RES         0x00000659
2505  * MSR_PKG_ANY_GFXE_C0_RES         0x0000065A
2506  * MSR_PKG_BOTH_CORE_GFXE_C0_RES   0x0000065B
2507  */
2508 int has_skl_msrs(unsigned int family, unsigned int model)
2509 {
2510         if (!genuine_intel)
2511                 return 0;
2512
2513         switch (model) {
2514         case 0x4E:      /* SKL */
2515         case 0x5E:      /* SKL */
2516                 return 1;
2517         }
2518         return 0;
2519 }
2520
2521
2522
2523 int is_slm(unsigned int family, unsigned int model)
2524 {
2525         if (!genuine_intel)
2526                 return 0;
2527         switch (model) {
2528         case 0x37:      /* BYT */
2529         case 0x4D:      /* AVN */
2530                 return 1;
2531         }
2532         return 0;
2533 }
2534
2535 int is_knl(unsigned int family, unsigned int model)
2536 {
2537         if (!genuine_intel)
2538                 return 0;
2539         switch (model) {
2540         case 0x57:      /* KNL */
2541                 return 1;
2542         }
2543         return 0;
2544 }
2545
2546 #define SLM_BCLK_FREQS 5
2547 double slm_freq_table[SLM_BCLK_FREQS] = { 83.3, 100.0, 133.3, 116.7, 80.0};
2548
2549 double slm_bclk(void)
2550 {
2551         unsigned long long msr = 3;
2552         unsigned int i;
2553         double freq;
2554
2555         if (get_msr(base_cpu, MSR_FSB_FREQ, &msr))
2556                 fprintf(stderr, "SLM BCLK: unknown\n");
2557
2558         i = msr & 0xf;
2559         if (i >= SLM_BCLK_FREQS) {
2560                 fprintf(stderr, "SLM BCLK[%d] invalid\n", i);
2561                 msr = 3;
2562         }
2563         freq = slm_freq_table[i];
2564
2565         fprintf(stderr, "SLM BCLK: %.1f Mhz\n", freq);
2566
2567         return freq;
2568 }
2569
2570 double discover_bclk(unsigned int family, unsigned int model)
2571 {
2572         if (has_snb_msrs(family, model))
2573                 return 100.00;
2574         else if (is_slm(family, model))
2575                 return slm_bclk();
2576         else
2577                 return 133.33;
2578 }
2579
2580 /*
2581  * MSR_IA32_TEMPERATURE_TARGET indicates the temperature where
2582  * the Thermal Control Circuit (TCC) activates.
2583  * This is usually equal to tjMax.
2584  *
2585  * Older processors do not have this MSR, so there we guess,
2586  * but also allow cmdline over-ride with -T.
2587  *
2588  * Several MSR temperature values are in units of degrees-C
2589  * below this value, including the Digital Thermal Sensor (DTS),
2590  * Package Thermal Management Sensor (PTM), and thermal event thresholds.
2591  */
2592 int set_temperature_target(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2593 {
2594         unsigned long long msr;
2595         unsigned int target_c_local;
2596         int cpu;
2597
2598         /* tcc_activation_temp is used only for dts or ptm */
2599         if (!(do_dts || do_ptm))
2600                 return 0;
2601
2602         /* this is a per-package concept */
2603         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
2604                 return 0;
2605
2606         cpu = t->cpu_id;
2607         if (cpu_migrate(cpu)) {
2608                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
2609                 return -1;
2610         }
2611
2612         if (tcc_activation_temp_override != 0) {
2613                 tcc_activation_temp = tcc_activation_temp_override;
2614                 fprintf(stderr, "cpu%d: Using cmdline TCC Target (%d C)\n",
2615                         cpu, tcc_activation_temp);
2616                 return 0;
2617         }
2618
2619         /* Temperature Target MSR is Nehalem and newer only */
2620         if (!do_nhm_platform_info)
2621                 goto guess;
2622
2623         if (get_msr(base_cpu, MSR_IA32_TEMPERATURE_TARGET, &msr))
2624                 goto guess;
2625
2626         target_c_local = (msr >> 16) & 0xFF;
2627
2628         if (debug)
2629                 fprintf(stderr, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n",
2630                         cpu, msr, target_c_local);
2631
2632         if (!target_c_local)
2633                 goto guess;
2634
2635         tcc_activation_temp = target_c_local;
2636
2637         return 0;
2638
2639 guess:
2640         tcc_activation_temp = TJMAX_DEFAULT;
2641         fprintf(stderr, "cpu%d: Guessing tjMax %d C, Please use -T to specify\n",
2642                 cpu, tcc_activation_temp);
2643
2644         return 0;
2645 }
2646 void process_cpuid()
2647 {
2648         unsigned int eax, ebx, ecx, edx, max_level;
2649         unsigned int fms, family, model, stepping;
2650
2651         eax = ebx = ecx = edx = 0;
2652
2653         __get_cpuid(0, &max_level, &ebx, &ecx, &edx);
2654
2655         if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e)
2656                 genuine_intel = 1;
2657
2658         if (debug)
2659                 fprintf(stderr, "CPUID(0): %.4s%.4s%.4s ",
2660                         (char *)&ebx, (char *)&edx, (char *)&ecx);
2661
2662         __get_cpuid(1, &fms, &ebx, &ecx, &edx);
2663         family = (fms >> 8) & 0xf;
2664         model = (fms >> 4) & 0xf;
2665         stepping = fms & 0xf;
2666         if (family == 6 || family == 0xf)
2667                 model += ((fms >> 16) & 0xf) << 4;
2668
2669         if (debug)
2670                 fprintf(stderr, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n",
2671                         max_level, family, model, stepping, family, model, stepping);
2672
2673         if (!(edx & (1 << 5)))
2674                 errx(1, "CPUID: no MSR");
2675
2676         /*
2677          * check max extended function levels of CPUID.
2678          * This is needed to check for invariant TSC.
2679          * This check is valid for both Intel and AMD.
2680          */
2681         ebx = ecx = edx = 0;
2682         __get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx);
2683
2684         if (max_level >= 0x80000007) {
2685
2686                 /*
2687                  * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8
2688                  * this check is valid for both Intel and AMD
2689                  */
2690                 __get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx);
2691                 has_invariant_tsc = edx & (1 << 8);
2692         }
2693
2694         /*
2695          * APERF/MPERF is advertised by CPUID.EAX=0x6: ECX.bit0
2696          * this check is valid for both Intel and AMD
2697          */
2698
2699         __get_cpuid(0x6, &eax, &ebx, &ecx, &edx);
2700         has_aperf = ecx & (1 << 0);
2701         do_dts = eax & (1 << 0);
2702         do_ptm = eax & (1 << 6);
2703         has_epb = ecx & (1 << 3);
2704
2705         if (debug)
2706                 fprintf(stderr, "CPUID(6): %sAPERF, %sDTS, %sPTM, %sEPB\n",
2707                         has_aperf ? "" : "No ",
2708                         do_dts ? "" : "No ",
2709                         do_ptm ? "" : "No ",
2710                         has_epb ? "" : "No ");
2711
2712         if (max_level > 0x15) {
2713                 unsigned int eax_crystal;
2714                 unsigned int ebx_tsc;
2715
2716                 /*
2717                  * CPUID 15H TSC/Crystal ratio, possibly Crystal Hz
2718                  */
2719                 eax_crystal = ebx_tsc = crystal_hz = edx = 0;
2720                 __get_cpuid(0x15, &eax_crystal, &ebx_tsc, &crystal_hz, &edx);
2721
2722                 if (ebx_tsc != 0) {
2723
2724                         if (debug && (ebx != 0))
2725                                 fprintf(stderr, "CPUID(0x15): eax_crystal: %d ebx_tsc: %d ecx_crystal_hz: %d\n",
2726                                         eax_crystal, ebx_tsc, crystal_hz);
2727
2728                         if (crystal_hz == 0)
2729                                 switch(model) {
2730                                 case 0x4E:      /* SKL */
2731                                 case 0x5E:      /* SKL */
2732                                         crystal_hz = 24000000;  /* 24 MHz */
2733                                         break;
2734                                 default:
2735                                         crystal_hz = 0;
2736                         }
2737
2738                         if (crystal_hz) {
2739                                 tsc_hz =  (unsigned long long) crystal_hz * ebx_tsc / eax_crystal;
2740                                 if (debug)
2741                                         fprintf(stderr, "TSC: %lld MHz (%d Hz * %d / %d / 1000000)\n",
2742                                                 tsc_hz / 1000000, crystal_hz, ebx_tsc,  eax_crystal);
2743                         }
2744                 }
2745         }
2746
2747         do_nhm_platform_info = do_nhm_cstates = do_smi = probe_nhm_msrs(family, model);
2748         do_snb_cstates = has_snb_msrs(family, model);
2749         do_pc2 = do_snb_cstates && (pkg_cstate_limit >= PCL__2);
2750         do_pc3 = (pkg_cstate_limit >= PCL__3);
2751         do_pc6 = (pkg_cstate_limit >= PCL__6);
2752         do_pc7 = do_snb_cstates && (pkg_cstate_limit >= PCL__7);
2753         do_c8_c9_c10 = has_hsw_msrs(family, model);
2754         do_skl_residency = has_skl_msrs(family, model);
2755         do_slm_cstates = is_slm(family, model);
2756         do_knl_cstates  = is_knl(family, model);
2757         bclk = discover_bclk(family, model);
2758
2759         rapl_probe(family, model);
2760         perf_limit_reasons_probe(family, model);
2761
2762         if (debug)
2763                 dump_cstate_pstate_config_info();
2764
2765         return;
2766 }
2767
2768 void help()
2769 {
2770         fprintf(stderr,
2771         "Usage: turbostat [OPTIONS][(--interval seconds) | COMMAND ...]\n"
2772         "\n"
2773         "Turbostat forks the specified COMMAND and prints statistics\n"
2774         "when COMMAND completes.\n"
2775         "If no COMMAND is specified, turbostat wakes every 5-seconds\n"
2776         "to print statistics, until interrupted.\n"
2777         "--debug        run in \"debug\" mode\n"
2778         "--interval sec Override default 5-second measurement interval\n"
2779         "--help         print this help message\n"
2780         "--counter msr  print 32-bit counter at address \"msr\"\n"
2781         "--Counter msr  print 64-bit Counter at address \"msr\"\n"
2782         "--msr msr      print 32-bit value at address \"msr\"\n"
2783         "--MSR msr      print 64-bit Value at address \"msr\"\n"
2784         "--version      print version information\n"
2785         "\n"
2786         "For more help, run \"man turbostat\"\n");
2787 }
2788
2789
2790 /*
2791  * in /dev/cpu/ return success for names that are numbers
2792  * ie. filter out ".", "..", "microcode".
2793  */
2794 int dir_filter(const struct dirent *dirp)
2795 {
2796         if (isdigit(dirp->d_name[0]))
2797                 return 1;
2798         else
2799                 return 0;
2800 }
2801
2802 int open_dev_cpu_msr(int dummy1)
2803 {
2804         return 0;
2805 }
2806
2807 void topology_probe()
2808 {
2809         int i;
2810         int max_core_id = 0;
2811         int max_package_id = 0;
2812         int max_siblings = 0;
2813         struct cpu_topology {
2814                 int core_id;
2815                 int physical_package_id;
2816         } *cpus;
2817
2818         /* Initialize num_cpus, max_cpu_num */
2819         topo.num_cpus = 0;
2820         topo.max_cpu_num = 0;
2821         for_all_proc_cpus(count_cpus);
2822         if (!summary_only && topo.num_cpus > 1)
2823                 show_cpu = 1;
2824
2825         if (debug > 1)
2826                 fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num);
2827
2828         cpus = calloc(1, (topo.max_cpu_num  + 1) * sizeof(struct cpu_topology));
2829         if (cpus == NULL)
2830                 err(1, "calloc cpus");
2831
2832         /*
2833          * Allocate and initialize cpu_present_set
2834          */
2835         cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1));
2836         if (cpu_present_set == NULL)
2837                 err(3, "CPU_ALLOC");
2838         cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
2839         CPU_ZERO_S(cpu_present_setsize, cpu_present_set);
2840         for_all_proc_cpus(mark_cpu_present);
2841
2842         /*
2843          * Allocate and initialize cpu_affinity_set
2844          */
2845         cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1));
2846         if (cpu_affinity_set == NULL)
2847                 err(3, "CPU_ALLOC");
2848         cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
2849         CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
2850
2851
2852         /*
2853          * For online cpus
2854          * find max_core_id, max_package_id
2855          */
2856         for (i = 0; i <= topo.max_cpu_num; ++i) {
2857                 int siblings;
2858
2859                 if (cpu_is_not_present(i)) {
2860                         if (debug > 1)
2861                                 fprintf(stderr, "cpu%d NOT PRESENT\n", i);
2862                         continue;
2863                 }
2864                 cpus[i].core_id = get_core_id(i);
2865                 if (cpus[i].core_id > max_core_id)
2866                         max_core_id = cpus[i].core_id;
2867
2868                 cpus[i].physical_package_id = get_physical_package_id(i);
2869                 if (cpus[i].physical_package_id > max_package_id)
2870                         max_package_id = cpus[i].physical_package_id;
2871
2872                 siblings = get_num_ht_siblings(i);
2873                 if (siblings > max_siblings)
2874                         max_siblings = siblings;
2875                 if (debug > 1)
2876                         fprintf(stderr, "cpu %d pkg %d core %d\n",
2877                                 i, cpus[i].physical_package_id, cpus[i].core_id);
2878         }
2879         topo.num_cores_per_pkg = max_core_id + 1;
2880         if (debug > 1)
2881                 fprintf(stderr, "max_core_id %d, sizing for %d cores per package\n",
2882                         max_core_id, topo.num_cores_per_pkg);
2883         if (debug && !summary_only && topo.num_cores_per_pkg > 1)
2884                 show_core = 1;
2885
2886         topo.num_packages = max_package_id + 1;
2887         if (debug > 1)
2888                 fprintf(stderr, "max_package_id %d, sizing for %d packages\n",
2889                         max_package_id, topo.num_packages);
2890         if (debug && !summary_only && topo.num_packages > 1)
2891                 show_pkg = 1;
2892
2893         topo.num_threads_per_core = max_siblings;
2894         if (debug > 1)
2895                 fprintf(stderr, "max_siblings %d\n", max_siblings);
2896
2897         free(cpus);
2898 }
2899
2900 void
2901 allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p)
2902 {
2903         int i;
2904
2905         *t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg *
2906                 topo.num_packages, sizeof(struct thread_data));
2907         if (*t == NULL)
2908                 goto error;
2909
2910         for (i = 0; i < topo.num_threads_per_core *
2911                 topo.num_cores_per_pkg * topo.num_packages; i++)
2912                 (*t)[i].cpu_id = -1;
2913
2914         *c = calloc(topo.num_cores_per_pkg * topo.num_packages,
2915                 sizeof(struct core_data));
2916         if (*c == NULL)
2917                 goto error;
2918
2919         for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++)
2920                 (*c)[i].core_id = -1;
2921
2922         *p = calloc(topo.num_packages, sizeof(struct pkg_data));
2923         if (*p == NULL)
2924                 goto error;
2925
2926         for (i = 0; i < topo.num_packages; i++)
2927                 (*p)[i].package_id = i;
2928
2929         return;
2930 error:
2931         err(1, "calloc counters");
2932 }
2933 /*
2934  * init_counter()
2935  *
2936  * set cpu_id, core_num, pkg_num
2937  * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE
2938  *
2939  * increment topo.num_cores when 1st core in pkg seen
2940  */
2941 void init_counter(struct thread_data *thread_base, struct core_data *core_base,
2942         struct pkg_data *pkg_base, int thread_num, int core_num,
2943         int pkg_num, int cpu_id)
2944 {
2945         struct thread_data *t;
2946         struct core_data *c;
2947         struct pkg_data *p;
2948
2949         t = GET_THREAD(thread_base, thread_num, core_num, pkg_num);
2950         c = GET_CORE(core_base, core_num, pkg_num);
2951         p = GET_PKG(pkg_base, pkg_num);
2952
2953         t->cpu_id = cpu_id;
2954         if (thread_num == 0) {
2955                 t->flags |= CPU_IS_FIRST_THREAD_IN_CORE;
2956                 if (cpu_is_first_core_in_package(cpu_id))
2957                         t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE;
2958         }
2959
2960         c->core_id = core_num;
2961         p->package_id = pkg_num;
2962 }
2963
2964
2965 int initialize_counters(int cpu_id)
2966 {
2967         int my_thread_id, my_core_id, my_package_id;
2968
2969         my_package_id = get_physical_package_id(cpu_id);
2970         my_core_id = get_core_id(cpu_id);
2971         my_thread_id = get_cpu_position_in_core(cpu_id);
2972         if (!my_thread_id)
2973                 topo.num_cores++;
2974
2975         init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
2976         init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
2977         return 0;
2978 }
2979
2980 void allocate_output_buffer()
2981 {
2982         output_buffer = calloc(1, (1 + topo.num_cpus) * 1024);
2983         outp = output_buffer;
2984         if (outp == NULL)
2985                 err(-1, "calloc output buffer");
2986 }
2987
2988 void setup_all_buffers(void)
2989 {
2990         topology_probe();
2991         allocate_counters(&thread_even, &core_even, &package_even);
2992         allocate_counters(&thread_odd, &core_odd, &package_odd);
2993         allocate_output_buffer();
2994         for_all_proc_cpus(initialize_counters);
2995 }
2996
2997 void set_base_cpu(void)
2998 {
2999         base_cpu = sched_getcpu();
3000         if (base_cpu < 0)
3001                 err(-ENODEV, "No valid cpus found");
3002
3003         if (debug > 1)
3004                 fprintf(stderr, "base_cpu = %d\n", base_cpu);
3005 }
3006
3007 void turbostat_init()
3008 {
3009         setup_all_buffers();
3010         set_base_cpu();
3011         check_dev_msr();
3012         check_permissions();
3013         process_cpuid();
3014
3015
3016         if (debug)
3017                 for_all_cpus(print_epb, ODD_COUNTERS);
3018
3019         if (debug)
3020                 for_all_cpus(print_perf_limit, ODD_COUNTERS);
3021
3022         if (debug)
3023                 for_all_cpus(print_rapl, ODD_COUNTERS);
3024
3025         for_all_cpus(set_temperature_target, ODD_COUNTERS);
3026
3027         if (debug)
3028                 for_all_cpus(print_thermal, ODD_COUNTERS);
3029 }
3030
3031 int fork_it(char **argv)
3032 {
3033         pid_t child_pid;
3034         int status;
3035
3036         status = for_all_cpus(get_counters, EVEN_COUNTERS);
3037         if (status)
3038                 exit(status);
3039         /* clear affinity side-effect of get_counters() */
3040         sched_setaffinity(0, cpu_present_setsize, cpu_present_set);
3041         gettimeofday(&tv_even, (struct timezone *)NULL);
3042
3043         child_pid = fork();
3044         if (!child_pid) {
3045                 /* child */
3046                 execvp(argv[0], argv);
3047         } else {
3048
3049                 /* parent */
3050                 if (child_pid == -1)
3051                         err(1, "fork");
3052
3053                 signal(SIGINT, SIG_IGN);
3054                 signal(SIGQUIT, SIG_IGN);
3055                 if (waitpid(child_pid, &status, 0) == -1)
3056                         err(status, "waitpid");
3057         }
3058         /*
3059          * n.b. fork_it() does not check for errors from for_all_cpus()
3060          * because re-starting is problematic when forking
3061          */
3062         for_all_cpus(get_counters, ODD_COUNTERS);
3063         gettimeofday(&tv_odd, (struct timezone *)NULL);
3064         timersub(&tv_odd, &tv_even, &tv_delta);
3065         for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
3066         compute_average(EVEN_COUNTERS);
3067         format_all_counters(EVEN_COUNTERS);
3068         flush_stderr();
3069
3070         fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0);
3071
3072         return status;
3073 }
3074
3075 int get_and_dump_counters(void)
3076 {
3077         int status;
3078
3079         status = for_all_cpus(get_counters, ODD_COUNTERS);
3080         if (status)
3081                 return status;
3082
3083         status = for_all_cpus(dump_counters, ODD_COUNTERS);
3084         if (status)
3085                 return status;
3086
3087         flush_stdout();
3088
3089         return status;
3090 }
3091
3092 void print_version() {
3093         fprintf(stderr, "turbostat version 4.7 17-June, 2015"
3094                 " - Len Brown <lenb@kernel.org>\n");
3095 }
3096
3097 void cmdline(int argc, char **argv)
3098 {
3099         int opt;
3100         int option_index = 0;
3101         static struct option long_options[] = {
3102                 {"Counter",     required_argument,      0, 'C'},
3103                 {"counter",     required_argument,      0, 'c'},
3104                 {"Dump",        no_argument,            0, 'D'},
3105                 {"debug",       no_argument,            0, 'd'},
3106                 {"interval",    required_argument,      0, 'i'},
3107                 {"help",        no_argument,            0, 'h'},
3108                 {"Joules",      no_argument,            0, 'J'},
3109                 {"MSR",         required_argument,      0, 'M'},
3110                 {"msr",         required_argument,      0, 'm'},
3111                 {"Package",     no_argument,            0, 'p'},
3112                 {"processor",   no_argument,            0, 'p'},
3113                 {"Summary",     no_argument,            0, 'S'},
3114                 {"TCC",         required_argument,      0, 'T'},
3115                 {"version",     no_argument,            0, 'v' },
3116                 {0,             0,                      0,  0 }
3117         };
3118
3119         progname = argv[0];
3120
3121         while ((opt = getopt_long_only(argc, argv, "+C:c:Ddhi:JM:m:PpST:v",
3122                                 long_options, &option_index)) != -1) {
3123                 switch (opt) {
3124                 case 'C':
3125                         sscanf(optarg, "%x", &extra_delta_offset64);
3126                         break;
3127                 case 'c':
3128                         sscanf(optarg, "%x", &extra_delta_offset32);
3129                         break;
3130                 case 'D':
3131                         dump_only++;
3132                         break;
3133                 case 'd':
3134                         debug++;
3135                         break;
3136                 case 'h':
3137                 default:
3138                         help();
3139                         exit(1);
3140                 case 'i':
3141                         interval_sec = atoi(optarg);
3142                         break;
3143                 case 'J':
3144                         rapl_joules++;
3145                         break;
3146                 case 'M':
3147                         sscanf(optarg, "%x", &extra_msr_offset64);
3148                         break;
3149                 case 'm':
3150                         sscanf(optarg, "%x", &extra_msr_offset32);
3151                         break;
3152                 case 'P':
3153                         show_pkg_only++;
3154                         break;
3155                 case 'p':
3156                         show_core_only++;
3157                         break;
3158                 case 'S':
3159                         summary_only++;
3160                         break;
3161                 case 'T':
3162                         tcc_activation_temp_override = atoi(optarg);
3163                         break;
3164                 case 'v':
3165                         print_version();
3166                         exit(0);
3167                         break;
3168                 }
3169         }
3170 }
3171
3172 int main(int argc, char **argv)
3173 {
3174         cmdline(argc, argv);
3175
3176         if (debug)
3177                 print_version();
3178
3179         turbostat_init();
3180
3181         /* dump counters and exit */
3182         if (dump_only)
3183                 return get_and_dump_counters();
3184
3185         /*
3186          * if any params left, it must be a command to fork
3187          */
3188         if (argc - optind)
3189                 return fork_it(argv + optind);
3190         else
3191                 turbostat_loop();
3192
3193         return 0;
3194 }