kernel/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_W");
 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, "cpu0: MSR_NHM_PLATFORM_INFO: 0x%08llx\n", 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, "cpu0: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n",
1172                 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, "cpu0: MSR_TURBO_RATIO_LIMIT2: 0x%08llx\n", 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, "cpu0: MSR_TURBO_RATIO_LIMIT1: 0x%08llx\n", 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, "cpu0: MSR_TURBO_RATIO_LIMIT: 0x%08llx\n", 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, "cpu0: MSR_NHM_TURBO_RATIO_LIMIT: 0x%08llx\n",
1316         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, "cpu0: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", 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 void free_all_buffers(void)
1388 {
1389         CPU_FREE(cpu_present_set);
1390         cpu_present_set = NULL;
1391         cpu_present_set = 0;
1392
1393         CPU_FREE(cpu_affinity_set);
1394         cpu_affinity_set = NULL;
1395         cpu_affinity_setsize = 0;
1396
1397         free(thread_even);
1398         free(core_even);
1399         free(package_even);
1400
1401         thread_even = NULL;
1402         core_even = NULL;
1403         package_even = NULL;
1404
1405         free(thread_odd);
1406         free(core_odd);
1407         free(package_odd);
1408
1409         thread_odd = NULL;
1410         core_odd = NULL;
1411         package_odd = NULL;
1412
1413         free(output_buffer);
1414         output_buffer = NULL;
1415         outp = NULL;
1416 }
1417
1418 /*
1419  * Open a file, and exit on failure
1420  */
1421 FILE *fopen_or_die(const char *path, const char *mode)
1422 {
1423         FILE *filep = fopen(path, "r");
1424         if (!filep)
1425                 err(1, "%s: open failed", path);
1426         return filep;
1427 }
1428
1429 /*
1430  * Parse a file containing a single int.
1431  */
1432 int parse_int_file(const char *fmt, ...)
1433 {
1434         va_list args;
1435         char path[PATH_MAX];
1436         FILE *filep;
1437         int value;
1438
1439         va_start(args, fmt);
1440         vsnprintf(path, sizeof(path), fmt, args);
1441         va_end(args);
1442         filep = fopen_or_die(path, "r");
1443         if (fscanf(filep, "%d", &value) != 1)
1444                 err(1, "%s: failed to parse number from file", path);
1445         fclose(filep);
1446         return value;
1447 }
1448
1449 /*
1450  * get_cpu_position_in_core(cpu)
1451  * return the position of the CPU among its HT siblings in the core
1452  * return -1 if the sibling is not in list
1453  */
1454 int get_cpu_position_in_core(int cpu)
1455 {
1456         char path[64];
1457         FILE *filep;
1458         int this_cpu;
1459         char character;
1460         int i;
1461
1462         sprintf(path,
1463                 "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list",
1464                 cpu);
1465         filep = fopen(path, "r");
1466         if (filep == NULL) {
1467                 perror(path);
1468                 exit(1);
1469         }
1470
1471         for (i = 0; i < topo.num_threads_per_core; i++) {
1472                 fscanf(filep, "%d", &this_cpu);
1473                 if (this_cpu == cpu) {
1474                         fclose(filep);
1475                         return i;
1476                 }
1477
1478                 /* Account for no separator after last thread*/
1479                 if (i != (topo.num_threads_per_core - 1))
1480                         fscanf(filep, "%c", &character);
1481         }
1482
1483         fclose(filep);
1484         return -1;
1485 }
1486
1487 /*
1488  * cpu_is_first_core_in_package(cpu)
1489  * return 1 if given CPU is 1st core in package
1490  */
1491 int cpu_is_first_core_in_package(int cpu)
1492 {
1493         return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu);
1494 }
1495
1496 int get_physical_package_id(int cpu)
1497 {
1498         return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu);
1499 }
1500
1501 int get_core_id(int cpu)
1502 {
1503         return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_id", cpu);
1504 }
1505
1506 int get_num_ht_siblings(int cpu)
1507 {
1508         char path[80];
1509         FILE *filep;
1510         int sib1;
1511         int matches = 0;
1512         char character;
1513         char str[100];
1514         char *ch;
1515
1516         sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu);
1517         filep = fopen_or_die(path, "r");
1518
1519         /*
1520          * file format:
1521          * A ',' separated or '-' separated set of numbers
1522          * (eg 1-2 or 1,3,4,5)
1523          */
1524         fscanf(filep, "%d%c\n", &sib1, &character);
1525         fseek(filep, 0, SEEK_SET);
1526         fgets(str, 100, filep);
1527         ch = strchr(str, character);
1528         while (ch != NULL) {
1529                 matches++;
1530                 ch = strchr(ch+1, character);
1531         }
1532
1533         fclose(filep);
1534         return matches+1;
1535 }
1536
1537 /*
1538  * run func(thread, core, package) in topology order
1539  * skip non-present cpus
1540  */
1541
1542 int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *,
1543         struct pkg_data *, struct thread_data *, struct core_data *,
1544         struct pkg_data *), struct thread_data *thread_base,
1545         struct core_data *core_base, struct pkg_data *pkg_base,
1546         struct thread_data *thread_base2, struct core_data *core_base2,
1547         struct pkg_data *pkg_base2)
1548 {
1549         int retval, pkg_no, core_no, thread_no;
1550
1551         for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
1552                 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
1553                         for (thread_no = 0; thread_no <
1554                                 topo.num_threads_per_core; ++thread_no) {
1555                                 struct thread_data *t, *t2;
1556                                 struct core_data *c, *c2;
1557                                 struct pkg_data *p, *p2;
1558
1559                                 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
1560
1561                                 if (cpu_is_not_present(t->cpu_id))
1562                                         continue;
1563
1564                                 t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no);
1565
1566                                 c = GET_CORE(core_base, core_no, pkg_no);
1567                                 c2 = GET_CORE(core_base2, core_no, pkg_no);
1568
1569                                 p = GET_PKG(pkg_base, pkg_no);
1570                                 p2 = GET_PKG(pkg_base2, pkg_no);
1571
1572                                 retval = func(t, c, p, t2, c2, p2);
1573                                 if (retval)
1574                                         return retval;
1575                         }
1576                 }
1577         }
1578         return 0;
1579 }
1580
1581 /*
1582  * run func(cpu) on every cpu in /proc/stat
1583  * return max_cpu number
1584  */
1585 int for_all_proc_cpus(int (func)(int))
1586 {
1587         FILE *fp;
1588         int cpu_num;
1589         int retval;
1590
1591         fp = fopen_or_die(proc_stat, "r");
1592
1593         retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n");
1594         if (retval != 0)
1595                 err(1, "%s: failed to parse format", proc_stat);
1596
1597         while (1) {
1598                 retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num);
1599                 if (retval != 1)
1600                         break;
1601
1602                 retval = func(cpu_num);
1603                 if (retval) {
1604                         fclose(fp);
1605                         return(retval);
1606                 }
1607         }
1608         fclose(fp);
1609         return 0;
1610 }
1611
1612 void re_initialize(void)
1613 {
1614         free_all_buffers();
1615         setup_all_buffers();
1616         printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus);
1617 }
1618
1619
1620 /*
1621  * count_cpus()
1622  * remember the last one seen, it will be the max
1623  */
1624 int count_cpus(int cpu)
1625 {
1626         if (topo.max_cpu_num < cpu)
1627                 topo.max_cpu_num = cpu;
1628
1629         topo.num_cpus += 1;
1630         return 0;
1631 }
1632 int mark_cpu_present(int cpu)
1633 {
1634         CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set);
1635         return 0;
1636 }
1637
1638 void turbostat_loop()
1639 {
1640         int retval;
1641         int restarted = 0;
1642
1643 restart:
1644         restarted++;
1645
1646         retval = for_all_cpus(get_counters, EVEN_COUNTERS);
1647         if (retval < -1) {
1648                 exit(retval);
1649         } else if (retval == -1) {
1650                 if (restarted > 1) {
1651                         exit(retval);
1652                 }
1653                 re_initialize();
1654                 goto restart;
1655         }
1656         restarted = 0;
1657         gettimeofday(&tv_even, (struct timezone *)NULL);
1658
1659         while (1) {
1660                 if (for_all_proc_cpus(cpu_is_not_present)) {
1661                         re_initialize();
1662                         goto restart;
1663                 }
1664                 sleep(interval_sec);
1665                 retval = for_all_cpus(get_counters, ODD_COUNTERS);
1666                 if (retval < -1) {
1667                         exit(retval);
1668                 } else if (retval == -1) {
1669                         re_initialize();
1670                         goto restart;
1671                 }
1672                 gettimeofday(&tv_odd, (struct timezone *)NULL);
1673                 timersub(&tv_odd, &tv_even, &tv_delta);
1674                 for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
1675                 compute_average(EVEN_COUNTERS);
1676                 format_all_counters(EVEN_COUNTERS);
1677                 flush_stdout();
1678                 sleep(interval_sec);
1679                 retval = for_all_cpus(get_counters, EVEN_COUNTERS);
1680                 if (retval < -1) {
1681                         exit(retval);
1682                 } else if (retval == -1) {
1683                         re_initialize();
1684                         goto restart;
1685                 }
1686                 gettimeofday(&tv_even, (struct timezone *)NULL);
1687                 timersub(&tv_even, &tv_odd, &tv_delta);
1688                 for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS);
1689                 compute_average(ODD_COUNTERS);
1690                 format_all_counters(ODD_COUNTERS);
1691                 flush_stdout();
1692         }
1693 }
1694
1695 void check_dev_msr()
1696 {
1697         struct stat sb;
1698         char pathname[32];
1699
1700         sprintf(pathname, "/dev/cpu/%d/msr", base_cpu);
1701         if (stat(pathname, &sb))
1702                 if (system("/sbin/modprobe msr > /dev/null 2>&1"))
1703                         err(-5, "no /dev/cpu/0/msr, Try \"# modprobe msr\" ");
1704 }
1705
1706 void check_permissions()
1707 {
1708         struct __user_cap_header_struct cap_header_data;
1709         cap_user_header_t cap_header = &cap_header_data;
1710         struct __user_cap_data_struct cap_data_data;
1711         cap_user_data_t cap_data = &cap_data_data;
1712         extern int capget(cap_user_header_t hdrp, cap_user_data_t datap);
1713         int do_exit = 0;
1714         char pathname[32];
1715
1716         /* check for CAP_SYS_RAWIO */
1717         cap_header->pid = getpid();
1718         cap_header->version = _LINUX_CAPABILITY_VERSION;
1719         if (capget(cap_header, cap_data) < 0)
1720                 err(-6, "capget(2) failed");
1721
1722         if ((cap_data->effective & (1 << CAP_SYS_RAWIO)) == 0) {
1723                 do_exit++;
1724                 warnx("capget(CAP_SYS_RAWIO) failed,"
1725                         " try \"# setcap cap_sys_rawio=ep %s\"", progname);
1726         }
1727
1728         /* test file permissions */
1729         sprintf(pathname, "/dev/cpu/%d/msr", base_cpu);
1730         if (euidaccess(pathname, R_OK)) {
1731                 do_exit++;
1732                 warn("/dev/cpu/0/msr open failed, try chown or chmod +r /dev/cpu/*/msr");
1733         }
1734
1735         /* if all else fails, thell them to be root */
1736         if (do_exit)
1737                 if (getuid() != 0)
1738                         warnx("... or simply run as root");
1739
1740         if (do_exit)
1741                 exit(-6);
1742 }
1743
1744 /*
1745  * NHM adds support for additional MSRs:
1746  *
1747  * MSR_SMI_COUNT                   0x00000034
1748  *
1749  * MSR_NHM_PLATFORM_INFO           0x000000ce
1750  * MSR_NHM_SNB_PKG_CST_CFG_CTL     0x000000e2
1751  *
1752  * MSR_PKG_C3_RESIDENCY            0x000003f8
1753  * MSR_PKG_C6_RESIDENCY            0x000003f9
1754  * MSR_CORE_C3_RESIDENCY           0x000003fc
1755  * MSR_CORE_C6_RESIDENCY           0x000003fd
1756  *
1757  * Side effect:
1758  * sets global pkg_cstate_limit to decode MSR_NHM_SNB_PKG_CST_CFG_CTL
1759  */
1760 int probe_nhm_msrs(unsigned int family, unsigned int model)
1761 {
1762         unsigned long long msr;
1763         int *pkg_cstate_limits;
1764
1765         if (!genuine_intel)
1766                 return 0;
1767
1768         if (family != 6)
1769                 return 0;
1770
1771         switch (model) {
1772         case 0x1A:      /* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */
1773         case 0x1E:      /* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */
1774         case 0x1F:      /* Core i7 and i5 Processor - Nehalem */
1775         case 0x25:      /* Westmere Client - Clarkdale, Arrandale */
1776         case 0x2C:      /* Westmere EP - Gulftown */
1777         case 0x2E:      /* Nehalem-EX Xeon - Beckton */
1778         case 0x2F:      /* Westmere-EX Xeon - Eagleton */
1779                 pkg_cstate_limits = nhm_pkg_cstate_limits;
1780                 break;
1781         case 0x2A:      /* SNB */
1782         case 0x2D:      /* SNB Xeon */
1783         case 0x3A:      /* IVB */
1784         case 0x3E:      /* IVB Xeon */
1785                 pkg_cstate_limits = snb_pkg_cstate_limits;
1786                 break;
1787         case 0x3C:      /* HSW */
1788         case 0x3F:      /* HSX */
1789         case 0x45:      /* HSW */
1790         case 0x46:      /* HSW */
1791         case 0x3D:      /* BDW */
1792         case 0x47:      /* BDW */
1793         case 0x4F:      /* BDX */
1794         case 0x56:      /* BDX-DE */
1795         case 0x4E:      /* SKL */
1796         case 0x5E:      /* SKL */
1797                 pkg_cstate_limits = hsw_pkg_cstate_limits;
1798                 break;
1799         case 0x37:      /* BYT */
1800         case 0x4D:      /* AVN */
1801                 pkg_cstate_limits = slv_pkg_cstate_limits;
1802                 break;
1803         case 0x4C:      /* AMT */
1804                 pkg_cstate_limits = amt_pkg_cstate_limits;
1805                 break;
1806         case 0x57:      /* PHI */
1807                 pkg_cstate_limits = phi_pkg_cstate_limits;
1808                 break;
1809         default:
1810                 return 0;
1811         }
1812         get_msr(base_cpu, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);
1813
1814         pkg_cstate_limit = pkg_cstate_limits[msr & 0xF];
1815
1816         return 1;
1817 }
1818 int has_nhm_turbo_ratio_limit(unsigned int family, unsigned int model)
1819 {
1820         switch (model) {
1821         /* Nehalem compatible, but do not include turbo-ratio limit support */
1822         case 0x2E:      /* Nehalem-EX Xeon - Beckton */
1823         case 0x2F:      /* Westmere-EX Xeon - Eagleton */
1824                 return 0;
1825         default:
1826                 return 1;
1827         }
1828 }
1829 int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model)
1830 {
1831         if (!genuine_intel)
1832                 return 0;
1833
1834         if (family != 6)
1835                 return 0;
1836
1837         switch (model) {
1838         case 0x3E:      /* IVB Xeon */
1839         case 0x3F:      /* HSW Xeon */
1840                 return 1;
1841         default:
1842                 return 0;
1843         }
1844 }
1845 int has_hsw_turbo_ratio_limit(unsigned int family, unsigned int model)
1846 {
1847         if (!genuine_intel)
1848                 return 0;
1849
1850         if (family != 6)
1851                 return 0;
1852
1853         switch (model) {
1854         case 0x3F:      /* HSW Xeon */
1855                 return 1;
1856         default:
1857                 return 0;
1858         }
1859 }
1860
1861 int has_knl_turbo_ratio_limit(unsigned int family, unsigned int model)
1862 {
1863         if (!genuine_intel)
1864                 return 0;
1865
1866         if (family != 6)
1867                 return 0;
1868
1869         switch (model) {
1870         case 0x57:      /* Knights Landing */
1871                 return 1;
1872         default:
1873                 return 0;
1874         }
1875 }
1876 static void
1877 dump_cstate_pstate_config_info(family, model)
1878 {
1879         if (!do_nhm_platform_info)
1880                 return;
1881
1882         dump_nhm_platform_info();
1883
1884         if (has_hsw_turbo_ratio_limit(family, model))
1885                 dump_hsw_turbo_ratio_limits();
1886
1887         if (has_ivt_turbo_ratio_limit(family, model))
1888                 dump_ivt_turbo_ratio_limits();
1889
1890         if (has_nhm_turbo_ratio_limit(family, model))
1891                 dump_nhm_turbo_ratio_limits();
1892
1893         if (has_knl_turbo_ratio_limit(family, model))
1894                 dump_knl_turbo_ratio_limits();
1895
1896         dump_nhm_cst_cfg();
1897 }
1898
1899
1900 /*
1901  * print_epb()
1902  * Decode the ENERGY_PERF_BIAS MSR
1903  */
1904 int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1905 {
1906         unsigned long long msr;
1907         char *epb_string;
1908         int cpu;
1909
1910         if (!has_epb)
1911                 return 0;
1912
1913         cpu = t->cpu_id;
1914
1915         /* EPB is per-package */
1916         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
1917                 return 0;
1918
1919         if (cpu_migrate(cpu)) {
1920                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
1921                 return -1;
1922         }
1923
1924         if (get_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, &msr))
1925                 return 0;
1926
1927         switch (msr & 0xF) {
1928         case ENERGY_PERF_BIAS_PERFORMANCE:
1929                 epb_string = "performance";
1930                 break;
1931         case ENERGY_PERF_BIAS_NORMAL:
1932                 epb_string = "balanced";
1933                 break;
1934         case ENERGY_PERF_BIAS_POWERSAVE:
1935                 epb_string = "powersave";
1936                 break;
1937         default:
1938                 epb_string = "custom";
1939                 break;
1940         }
1941         fprintf(stderr, "cpu%d: MSR_IA32_ENERGY_PERF_BIAS: 0x%08llx (%s)\n", cpu, msr, epb_string);
1942
1943         return 0;
1944 }
1945
1946 /*
1947  * print_perf_limit()
1948  */
1949 int print_perf_limit(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1950 {
1951         unsigned long long msr;
1952         int cpu;
1953
1954         cpu = t->cpu_id;
1955
1956         /* per-package */
1957         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
1958                 return 0;
1959
1960         if (cpu_migrate(cpu)) {
1961                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
1962                 return -1;
1963         }
1964
1965         if (do_core_perf_limit_reasons) {
1966                 get_msr(cpu, MSR_CORE_PERF_LIMIT_REASONS, &msr);
1967                 fprintf(stderr, "cpu%d: MSR_CORE_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
1968                 fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)",
1969                         (msr & 1 << 15) ? "bit15, " : "",
1970                         (msr & 1 << 14) ? "bit14, " : "",
1971                         (msr & 1 << 13) ? "Transitions, " : "",
1972                         (msr & 1 << 12) ? "MultiCoreTurbo, " : "",
1973                         (msr & 1 << 11) ? "PkgPwrL2, " : "",
1974                         (msr & 1 << 10) ? "PkgPwrL1, " : "",
1975                         (msr & 1 << 9) ? "CorePwr, " : "",
1976                         (msr & 1 << 8) ? "Amps, " : "",
1977                         (msr & 1 << 6) ? "VR-Therm, " : "",
1978                         (msr & 1 << 5) ? "Auto-HWP, " : "",
1979                         (msr & 1 << 4) ? "Graphics, " : "",
1980                         (msr & 1 << 2) ? "bit2, " : "",
1981                         (msr & 1 << 1) ? "ThermStatus, " : "",
1982                         (msr & 1 << 0) ? "PROCHOT, " : "");
1983                 fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)\n",
1984                         (msr & 1 << 31) ? "bit31, " : "",
1985                         (msr & 1 << 30) ? "bit30, " : "",
1986                         (msr & 1 << 29) ? "Transitions, " : "",
1987                         (msr & 1 << 28) ? "MultiCoreTurbo, " : "",
1988                         (msr & 1 << 27) ? "PkgPwrL2, " : "",
1989                         (msr & 1 << 26) ? "PkgPwrL1, " : "",
1990                         (msr & 1 << 25) ? "CorePwr, " : "",
1991                         (msr & 1 << 24) ? "Amps, " : "",
1992                         (msr & 1 << 22) ? "VR-Therm, " : "",
1993                         (msr & 1 << 21) ? "Auto-HWP, " : "",
1994                         (msr & 1 << 20) ? "Graphics, " : "",
1995                         (msr & 1 << 18) ? "bit18, " : "",
1996                         (msr & 1 << 17) ? "ThermStatus, " : "",
1997                         (msr & 1 << 16) ? "PROCHOT, " : "");
1998
1999         }
2000         if (do_gfx_perf_limit_reasons) {
2001                 get_msr(cpu, MSR_GFX_PERF_LIMIT_REASONS, &msr);
2002                 fprintf(stderr, "cpu%d: MSR_GFX_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
2003                 fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s)",
2004                         (msr & 1 << 0) ? "PROCHOT, " : "",
2005                         (msr & 1 << 1) ? "ThermStatus, " : "",
2006                         (msr & 1 << 4) ? "Graphics, " : "",
2007                         (msr & 1 << 6) ? "VR-Therm, " : "",
2008                         (msr & 1 << 8) ? "Amps, " : "",
2009                         (msr & 1 << 9) ? "GFXPwr, " : "",
2010                         (msr & 1 << 10) ? "PkgPwrL1, " : "",
2011                         (msr & 1 << 11) ? "PkgPwrL2, " : "");
2012                 fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s)\n",
2013                         (msr & 1 << 16) ? "PROCHOT, " : "",
2014                         (msr & 1 << 17) ? "ThermStatus, " : "",
2015                         (msr & 1 << 20) ? "Graphics, " : "",
2016                         (msr & 1 << 22) ? "VR-Therm, " : "",
2017                         (msr & 1 << 24) ? "Amps, " : "",
2018                         (msr & 1 << 25) ? "GFXPwr, " : "",
2019                         (msr & 1 << 26) ? "PkgPwrL1, " : "",
2020                         (msr & 1 << 27) ? "PkgPwrL2, " : "");
2021         }
2022         if (do_ring_perf_limit_reasons) {
2023                 get_msr(cpu, MSR_RING_PERF_LIMIT_REASONS, &msr);
2024                 fprintf(stderr, "cpu%d: MSR_RING_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
2025                 fprintf(stderr, " (Active: %s%s%s%s%s%s)",
2026                         (msr & 1 << 0) ? "PROCHOT, " : "",
2027                         (msr & 1 << 1) ? "ThermStatus, " : "",
2028                         (msr & 1 << 6) ? "VR-Therm, " : "",
2029                         (msr & 1 << 8) ? "Amps, " : "",
2030                         (msr & 1 << 10) ? "PkgPwrL1, " : "",
2031                         (msr & 1 << 11) ? "PkgPwrL2, " : "");
2032                 fprintf(stderr, " (Logged: %s%s%s%s%s%s)\n",
2033                         (msr & 1 << 16) ? "PROCHOT, " : "",
2034                         (msr & 1 << 17) ? "ThermStatus, " : "",
2035                         (msr & 1 << 22) ? "VR-Therm, " : "",
2036                         (msr & 1 << 24) ? "Amps, " : "",
2037                         (msr & 1 << 26) ? "PkgPwrL1, " : "",
2038                         (msr & 1 << 27) ? "PkgPwrL2, " : "");
2039         }
2040         return 0;
2041 }
2042
2043 #define RAPL_POWER_GRANULARITY  0x7FFF  /* 15 bit power granularity */
2044 #define RAPL_TIME_GRANULARITY   0x3F /* 6 bit time granularity */
2045
2046 double get_tdp(model)
2047 {
2048         unsigned long long msr;
2049
2050         if (do_rapl & RAPL_PKG_POWER_INFO)
2051                 if (!get_msr(base_cpu, MSR_PKG_POWER_INFO, &msr))
2052                         return ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units;
2053
2054         switch (model) {
2055         case 0x37:
2056         case 0x4D:
2057                 return 30.0;
2058         default:
2059                 return 135.0;
2060         }
2061 }
2062
2063 /*
2064  * rapl_dram_energy_units_probe()
2065  * Energy units are either hard-coded, or come from RAPL Energy Unit MSR.
2066  */
2067 static double
2068 rapl_dram_energy_units_probe(int  model, double rapl_energy_units)
2069 {
2070         /* only called for genuine_intel, family 6 */
2071
2072         switch (model) {
2073         case 0x3F:      /* HSX */
2074         case 0x4F:      /* BDX */
2075         case 0x56:      /* BDX-DE */
2076         case 0x57:      /* KNL */
2077                 return (rapl_dram_energy_units = 15.3 / 1000000);
2078         default:
2079                 return (rapl_energy_units);
2080         }
2081 }
2082
2083
2084 /*
2085  * rapl_probe()
2086  *
2087  * sets do_rapl, rapl_power_units, rapl_energy_units, rapl_time_units
2088  */
2089 void rapl_probe(unsigned int family, unsigned int model)
2090 {
2091         unsigned long long msr;
2092         unsigned int time_unit;
2093         double tdp;
2094
2095         if (!genuine_intel)
2096                 return;
2097
2098         if (family != 6)
2099                 return;
2100
2101         switch (model) {
2102         case 0x2A:
2103         case 0x3A:
2104         case 0x3C:      /* HSW */
2105         case 0x45:      /* HSW */
2106         case 0x46:      /* HSW */
2107         case 0x3D:      /* BDW */
2108         case 0x47:      /* BDW */
2109                 do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_GFX | RAPL_PKG_POWER_INFO;
2110                 break;
2111         case 0x4E:      /* SKL */
2112         case 0x5E:      /* SKL */
2113                 do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO;
2114                 break;
2115         case 0x3F:      /* HSX */
2116         case 0x4F:      /* BDX */
2117         case 0x56:      /* BDX-DE */
2118         case 0x57:      /* KNL */
2119                 do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_POWER_INFO | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO;
2120                 break;
2121         case 0x2D:
2122         case 0x3E:
2123                 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;
2124                 break;
2125         case 0x37:      /* BYT */
2126         case 0x4D:      /* AVN */
2127                 do_rapl = RAPL_PKG | RAPL_CORES ;
2128                 break;
2129         default:
2130                 return;
2131         }
2132
2133         /* units on package 0, verify later other packages match */
2134         if (get_msr(base_cpu, MSR_RAPL_POWER_UNIT, &msr))
2135                 return;
2136
2137         rapl_power_units = 1.0 / (1 << (msr & 0xF));
2138         if (model == 0x37)
2139                 rapl_energy_units = 1.0 * (1 << (msr >> 8 & 0x1F)) / 1000000;
2140         else
2141                 rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F));
2142
2143         rapl_dram_energy_units = rapl_dram_energy_units_probe(model, rapl_energy_units);
2144
2145         time_unit = msr >> 16 & 0xF;
2146         if (time_unit == 0)
2147                 time_unit = 0xA;
2148
2149         rapl_time_units = 1.0 / (1 << (time_unit));
2150
2151         tdp = get_tdp(model);
2152
2153         rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp;
2154         if (debug)
2155                 fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp);
2156
2157         return;
2158 }
2159
2160 void perf_limit_reasons_probe(family, model)
2161 {
2162         if (!genuine_intel)
2163                 return;
2164
2165         if (family != 6)
2166                 return;
2167
2168         switch (model) {
2169         case 0x3C:      /* HSW */
2170         case 0x45:      /* HSW */
2171         case 0x46:      /* HSW */
2172                 do_gfx_perf_limit_reasons = 1;
2173         case 0x3F:      /* HSX */
2174                 do_core_perf_limit_reasons = 1;
2175                 do_ring_perf_limit_reasons = 1;
2176         default:
2177                 return;
2178         }
2179 }
2180
2181 int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2182 {
2183         unsigned long long msr;
2184         unsigned int dts;
2185         int cpu;
2186
2187         if (!(do_dts || do_ptm))
2188                 return 0;
2189
2190         cpu = t->cpu_id;
2191
2192         /* DTS is per-core, no need to print for each thread */
2193         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
2194                 return 0;
2195
2196         if (cpu_migrate(cpu)) {
2197                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
2198                 return -1;
2199         }
2200
2201         if (do_ptm && (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) {
2202                 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
2203                         return 0;
2204
2205                 dts = (msr >> 16) & 0x7F;
2206                 fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_STATUS: 0x%08llx (%d C)\n",
2207                         cpu, msr, tcc_activation_temp - dts);
2208
2209 #ifdef  THERM_DEBUG
2210                 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &msr))
2211                         return 0;
2212
2213                 dts = (msr >> 16) & 0x7F;
2214                 dts2 = (msr >> 8) & 0x7F;
2215                 fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
2216                         cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
2217 #endif
2218         }
2219
2220
2221         if (do_dts) {
2222                 unsigned int resolution;
2223
2224                 if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
2225                         return 0;
2226
2227                 dts = (msr >> 16) & 0x7F;
2228                 resolution = (msr >> 27) & 0xF;
2229                 fprintf(stderr, "cpu%d: MSR_IA32_THERM_STATUS: 0x%08llx (%d C +/- %d)\n",
2230                         cpu, msr, tcc_activation_temp - dts, resolution);
2231
2232 #ifdef THERM_DEBUG
2233                 if (get_msr(cpu, MSR_IA32_THERM_INTERRUPT, &msr))
2234                         return 0;
2235
2236                 dts = (msr >> 16) & 0x7F;
2237                 dts2 = (msr >> 8) & 0x7F;
2238                 fprintf(stderr, "cpu%d: MSR_IA32_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
2239                         cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
2240 #endif
2241         }
2242
2243         return 0;
2244 }
2245
2246 void print_power_limit_msr(int cpu, unsigned long long msr, char *label)
2247 {
2248         fprintf(stderr, "cpu%d: %s: %sabled (%f Watts, %f sec, clamp %sabled)\n",
2249                 cpu, label,
2250                 ((msr >> 15) & 1) ? "EN" : "DIS",
2251                 ((msr >> 0) & 0x7FFF) * rapl_power_units,
2252                 (1.0 + (((msr >> 22) & 0x3)/4.0)) * (1 << ((msr >> 17) & 0x1F)) * rapl_time_units,
2253                 (((msr >> 16) & 1) ? "EN" : "DIS"));
2254
2255         return;
2256 }
2257
2258 int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2259 {
2260         unsigned long long msr;
2261         int cpu;
2262
2263         if (!do_rapl)
2264                 return 0;
2265
2266         /* RAPL counters are per package, so print only for 1st thread/package */
2267         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
2268                 return 0;
2269
2270         cpu = t->cpu_id;
2271         if (cpu_migrate(cpu)) {
2272                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
2273                 return -1;
2274         }
2275
2276         if (get_msr(cpu, MSR_RAPL_POWER_UNIT, &msr))
2277                 return -1;
2278
2279         if (debug) {
2280                 fprintf(stderr, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx "
2281                         "(%f Watts, %f Joules, %f sec.)\n", cpu, msr,
2282                         rapl_power_units, rapl_energy_units, rapl_time_units);
2283         }
2284         if (do_rapl & RAPL_PKG_POWER_INFO) {
2285
2286                 if (get_msr(cpu, MSR_PKG_POWER_INFO, &msr))
2287                         return -5;
2288
2289
2290                 fprintf(stderr, "cpu%d: MSR_PKG_POWER_INFO: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
2291                         cpu, msr,
2292                         ((msr >>  0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2293                         ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2294                         ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2295                         ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
2296
2297         }
2298         if (do_rapl & RAPL_PKG) {
2299
2300                 if (get_msr(cpu, MSR_PKG_POWER_LIMIT, &msr))
2301                         return -9;
2302
2303                 fprintf(stderr, "cpu%d: MSR_PKG_POWER_LIMIT: 0x%08llx (%slocked)\n",
2304                         cpu, msr, (msr >> 63) & 1 ? "": "UN");
2305
2306                 print_power_limit_msr(cpu, msr, "PKG Limit #1");
2307                 fprintf(stderr, "cpu%d: PKG Limit #2: %sabled (%f Watts, %f* sec, clamp %sabled)\n",
2308                         cpu,
2309                         ((msr >> 47) & 1) ? "EN" : "DIS",
2310                         ((msr >> 32) & 0x7FFF) * rapl_power_units,
2311                         (1.0 + (((msr >> 54) & 0x3)/4.0)) * (1 << ((msr >> 49) & 0x1F)) * rapl_time_units,
2312                         ((msr >> 48) & 1) ? "EN" : "DIS");
2313         }
2314
2315         if (do_rapl & RAPL_DRAM_POWER_INFO) {
2316                 if (get_msr(cpu, MSR_DRAM_POWER_INFO, &msr))
2317                         return -6;
2318
2319                 fprintf(stderr, "cpu%d: MSR_DRAM_POWER_INFO,: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
2320                         cpu, msr,
2321                         ((msr >>  0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2322                         ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2323                         ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2324                         ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
2325         }
2326         if (do_rapl & RAPL_DRAM) {
2327                 if (get_msr(cpu, MSR_DRAM_POWER_LIMIT, &msr))
2328                         return -9;
2329                 fprintf(stderr, "cpu%d: MSR_DRAM_POWER_LIMIT: 0x%08llx (%slocked)\n",
2330                                 cpu, msr, (msr >> 31) & 1 ? "": "UN");
2331
2332                 print_power_limit_msr(cpu, msr, "DRAM Limit");
2333         }
2334         if (do_rapl & RAPL_CORE_POLICY) {
2335                 if (debug) {
2336                         if (get_msr(cpu, MSR_PP0_POLICY, &msr))
2337                                 return -7;
2338
2339                         fprintf(stderr, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF);
2340                 }
2341         }
2342         if (do_rapl & RAPL_CORES) {
2343                 if (debug) {
2344
2345                         if (get_msr(cpu, MSR_PP0_POWER_LIMIT, &msr))
2346                                 return -9;
2347                         fprintf(stderr, "cpu%d: MSR_PP0_POWER_LIMIT: 0x%08llx (%slocked)\n",
2348                                         cpu, msr, (msr >> 31) & 1 ? "": "UN");
2349                         print_power_limit_msr(cpu, msr, "Cores Limit");
2350                 }
2351         }
2352         if (do_rapl & RAPL_GFX) {
2353                 if (debug) {
2354                         if (get_msr(cpu, MSR_PP1_POLICY, &msr))
2355                                 return -8;
2356
2357                         fprintf(stderr, "cpu%d: MSR_PP1_POLICY: %lld\n", cpu, msr & 0xF);
2358
2359                         if (get_msr(cpu, MSR_PP1_POWER_LIMIT, &msr))
2360                                 return -9;
2361                         fprintf(stderr, "cpu%d: MSR_PP1_POWER_LIMIT: 0x%08llx (%slocked)\n",
2362                                         cpu, msr, (msr >> 31) & 1 ? "": "UN");
2363                         print_power_limit_msr(cpu, msr, "GFX Limit");
2364                 }
2365         }
2366         return 0;
2367 }
2368
2369 /*
2370  * SNB adds support for additional MSRs:
2371  *
2372  * MSR_PKG_C7_RESIDENCY            0x000003fa
2373  * MSR_CORE_C7_RESIDENCY           0x000003fe
2374  * MSR_PKG_C2_RESIDENCY            0x0000060d
2375  */
2376
2377 int has_snb_msrs(unsigned int family, unsigned int model)
2378 {
2379         if (!genuine_intel)
2380                 return 0;
2381
2382         switch (model) {
2383         case 0x2A:
2384         case 0x2D:
2385         case 0x3A:      /* IVB */
2386         case 0x3E:      /* IVB Xeon */
2387         case 0x3C:      /* HSW */
2388         case 0x3F:      /* HSW */
2389         case 0x45:      /* HSW */
2390         case 0x46:      /* HSW */
2391         case 0x3D:      /* BDW */
2392         case 0x47:      /* BDW */
2393         case 0x4F:      /* BDX */
2394         case 0x56:      /* BDX-DE */
2395         case 0x4E:      /* SKL */
2396         case 0x5E:      /* SKL */
2397                 return 1;
2398         }
2399         return 0;
2400 }
2401
2402 /*
2403  * HSW adds support for additional MSRs:
2404  *
2405  * MSR_PKG_C8_RESIDENCY            0x00000630
2406  * MSR_PKG_C9_RESIDENCY            0x00000631
2407  * MSR_PKG_C10_RESIDENCY           0x00000632
2408  */
2409 int has_hsw_msrs(unsigned int family, unsigned int model)
2410 {
2411         if (!genuine_intel)
2412                 return 0;
2413
2414         switch (model) {
2415         case 0x45:      /* HSW */
2416         case 0x3D:      /* BDW */
2417         case 0x4E:      /* SKL */
2418         case 0x5E:      /* SKL */
2419                 return 1;
2420         }
2421         return 0;
2422 }
2423
2424 /*
2425  * SKL adds support for additional MSRS:
2426  *
2427  * MSR_PKG_WEIGHTED_CORE_C0_RES    0x00000658
2428  * MSR_PKG_ANY_CORE_C0_RES         0x00000659
2429  * MSR_PKG_ANY_GFXE_C0_RES         0x0000065A
2430  * MSR_PKG_BOTH_CORE_GFXE_C0_RES   0x0000065B
2431  */
2432 int has_skl_msrs(unsigned int family, unsigned int model)
2433 {
2434         if (!genuine_intel)
2435                 return 0;
2436
2437         switch (model) {
2438         case 0x4E:      /* SKL */
2439         case 0x5E:      /* SKL */
2440                 return 1;
2441         }
2442         return 0;
2443 }
2444
2445
2446
2447 int is_slm(unsigned int family, unsigned int model)
2448 {
2449         if (!genuine_intel)
2450                 return 0;
2451         switch (model) {
2452         case 0x37:      /* BYT */
2453         case 0x4D:      /* AVN */
2454                 return 1;
2455         }
2456         return 0;
2457 }
2458
2459 int is_knl(unsigned int family, unsigned int model)
2460 {
2461         if (!genuine_intel)
2462                 return 0;
2463         switch (model) {
2464         case 0x57:      /* KNL */
2465                 return 1;
2466         }
2467         return 0;
2468 }
2469
2470 #define SLM_BCLK_FREQS 5
2471 double slm_freq_table[SLM_BCLK_FREQS] = { 83.3, 100.0, 133.3, 116.7, 80.0};
2472
2473 double slm_bclk(void)
2474 {
2475         unsigned long long msr = 3;
2476         unsigned int i;
2477         double freq;
2478
2479         if (get_msr(base_cpu, MSR_FSB_FREQ, &msr))
2480                 fprintf(stderr, "SLM BCLK: unknown\n");
2481
2482         i = msr & 0xf;
2483         if (i >= SLM_BCLK_FREQS) {
2484                 fprintf(stderr, "SLM BCLK[%d] invalid\n", i);
2485                 msr = 3;
2486         }
2487         freq = slm_freq_table[i];
2488
2489         fprintf(stderr, "SLM BCLK: %.1f Mhz\n", freq);
2490
2491         return freq;
2492 }
2493
2494 double discover_bclk(unsigned int family, unsigned int model)
2495 {
2496         if (has_snb_msrs(family, model))
2497                 return 100.00;
2498         else if (is_slm(family, model))
2499                 return slm_bclk();
2500         else
2501                 return 133.33;
2502 }
2503
2504 /*
2505  * MSR_IA32_TEMPERATURE_TARGET indicates the temperature where
2506  * the Thermal Control Circuit (TCC) activates.
2507  * This is usually equal to tjMax.
2508  *
2509  * Older processors do not have this MSR, so there we guess,
2510  * but also allow cmdline over-ride with -T.
2511  *
2512  * Several MSR temperature values are in units of degrees-C
2513  * below this value, including the Digital Thermal Sensor (DTS),
2514  * Package Thermal Management Sensor (PTM), and thermal event thresholds.
2515  */
2516 int set_temperature_target(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2517 {
2518         unsigned long long msr;
2519         unsigned int target_c_local;
2520         int cpu;
2521
2522         /* tcc_activation_temp is used only for dts or ptm */
2523         if (!(do_dts || do_ptm))
2524                 return 0;
2525
2526         /* this is a per-package concept */
2527         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
2528                 return 0;
2529
2530         cpu = t->cpu_id;
2531         if (cpu_migrate(cpu)) {
2532                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
2533                 return -1;
2534         }
2535
2536         if (tcc_activation_temp_override != 0) {
2537                 tcc_activation_temp = tcc_activation_temp_override;
2538                 fprintf(stderr, "cpu%d: Using cmdline TCC Target (%d C)\n",
2539                         cpu, tcc_activation_temp);
2540                 return 0;
2541         }
2542
2543         /* Temperature Target MSR is Nehalem and newer only */
2544         if (!do_nhm_platform_info)
2545                 goto guess;
2546
2547         if (get_msr(base_cpu, MSR_IA32_TEMPERATURE_TARGET, &msr))
2548                 goto guess;
2549
2550         target_c_local = (msr >> 16) & 0xFF;
2551
2552         if (debug)
2553                 fprintf(stderr, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n",
2554                         cpu, msr, target_c_local);
2555
2556         if (!target_c_local)
2557                 goto guess;
2558
2559         tcc_activation_temp = target_c_local;
2560
2561         return 0;
2562
2563 guess:
2564         tcc_activation_temp = TJMAX_DEFAULT;
2565         fprintf(stderr, "cpu%d: Guessing tjMax %d C, Please use -T to specify\n",
2566                 cpu, tcc_activation_temp);
2567
2568         return 0;
2569 }
2570 void process_cpuid()
2571 {
2572         unsigned int eax, ebx, ecx, edx, max_level;
2573         unsigned int fms, family, model, stepping;
2574
2575         eax = ebx = ecx = edx = 0;
2576
2577         __get_cpuid(0, &max_level, &ebx, &ecx, &edx);
2578
2579         if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e)
2580                 genuine_intel = 1;
2581
2582         if (debug)
2583                 fprintf(stderr, "CPUID(0): %.4s%.4s%.4s ",
2584                         (char *)&ebx, (char *)&edx, (char *)&ecx);
2585
2586         __get_cpuid(1, &fms, &ebx, &ecx, &edx);
2587         family = (fms >> 8) & 0xf;
2588         model = (fms >> 4) & 0xf;
2589         stepping = fms & 0xf;
2590         if (family == 6 || family == 0xf)
2591                 model += ((fms >> 16) & 0xf) << 4;
2592
2593         if (debug)
2594                 fprintf(stderr, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n",
2595                         max_level, family, model, stepping, family, model, stepping);
2596
2597         if (!(edx & (1 << 5)))
2598                 errx(1, "CPUID: no MSR");
2599
2600         /*
2601          * check max extended function levels of CPUID.
2602          * This is needed to check for invariant TSC.
2603          * This check is valid for both Intel and AMD.
2604          */
2605         ebx = ecx = edx = 0;
2606         __get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx);
2607
2608         if (max_level >= 0x80000007) {
2609
2610                 /*
2611                  * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8
2612                  * this check is valid for both Intel and AMD
2613                  */
2614                 __get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx);
2615                 has_invariant_tsc = edx & (1 << 8);
2616         }
2617
2618         /*
2619          * APERF/MPERF is advertised by CPUID.EAX=0x6: ECX.bit0
2620          * this check is valid for both Intel and AMD
2621          */
2622
2623         __get_cpuid(0x6, &eax, &ebx, &ecx, &edx);
2624         has_aperf = ecx & (1 << 0);
2625         do_dts = eax & (1 << 0);
2626         do_ptm = eax & (1 << 6);
2627         has_epb = ecx & (1 << 3);
2628
2629         if (debug)
2630                 fprintf(stderr, "CPUID(6): %sAPERF, %sDTS, %sPTM, %sEPB\n",
2631                         has_aperf ? "" : "No ",
2632                         do_dts ? "" : "No ",
2633                         do_ptm ? "" : "No ",
2634                         has_epb ? "" : "No ");
2635
2636         if (max_level > 0x15) {
2637                 unsigned int eax_crystal;
2638                 unsigned int ebx_tsc;
2639
2640                 /*
2641                  * CPUID 15H TSC/Crystal ratio, possibly Crystal Hz
2642                  */
2643                 eax_crystal = ebx_tsc = crystal_hz = edx = 0;
2644                 __get_cpuid(0x15, &eax_crystal, &ebx_tsc, &crystal_hz, &edx);
2645
2646                 if (ebx_tsc != 0) {
2647
2648                         if (debug && (ebx != 0))
2649                                 fprintf(stderr, "CPUID(0x15): eax_crystal: %d ebx_tsc: %d ecx_crystal_hz: %d\n",
2650                                         eax_crystal, ebx_tsc, crystal_hz);
2651
2652                         if (crystal_hz == 0)
2653                                 switch(model) {
2654                                 case 0x4E:      /* SKL */
2655                                 case 0x5E:      /* SKL */
2656                                         crystal_hz = 24000000;  /* 24 MHz */
2657                                         break;
2658                                 default:
2659                                         crystal_hz = 0;
2660                         }
2661
2662                         if (crystal_hz) {
2663                                 tsc_hz =  (unsigned long long) crystal_hz * ebx_tsc / eax_crystal;
2664                                 if (debug)
2665                                         fprintf(stderr, "TSC: %lld MHz (%d Hz * %d / %d / 1000000)\n",
2666                                                 tsc_hz / 1000000, crystal_hz, ebx_tsc,  eax_crystal);
2667                         }
2668                 }
2669         }
2670
2671         do_nhm_platform_info = do_nhm_cstates = do_smi = probe_nhm_msrs(family, model);
2672         do_snb_cstates = has_snb_msrs(family, model);
2673         do_pc2 = do_snb_cstates && (pkg_cstate_limit >= PCL__2);
2674         do_pc3 = (pkg_cstate_limit >= PCL__3);
2675         do_pc6 = (pkg_cstate_limit >= PCL__6);
2676         do_pc7 = do_snb_cstates && (pkg_cstate_limit >= PCL__7);
2677         do_c8_c9_c10 = has_hsw_msrs(family, model);
2678         do_skl_residency = has_skl_msrs(family, model);
2679         do_slm_cstates = is_slm(family, model);
2680         do_knl_cstates  = is_knl(family, model);
2681         bclk = discover_bclk(family, model);
2682
2683         rapl_probe(family, model);
2684         perf_limit_reasons_probe(family, model);
2685
2686         if (debug)
2687                 dump_cstate_pstate_config_info();
2688
2689         return;
2690 }
2691
2692 void help()
2693 {
2694         fprintf(stderr,
2695         "Usage: turbostat [OPTIONS][(--interval seconds) | COMMAND ...]\n"
2696         "\n"
2697         "Turbostat forks the specified COMMAND and prints statistics\n"
2698         "when COMMAND completes.\n"
2699         "If no COMMAND is specified, turbostat wakes every 5-seconds\n"
2700         "to print statistics, until interrupted.\n"
2701         "--debug        run in \"debug\" mode\n"
2702         "--interval sec Override default 5-second measurement interval\n"
2703         "--help         print this help message\n"
2704         "--counter msr  print 32-bit counter at address \"msr\"\n"
2705         "--Counter msr  print 64-bit Counter at address \"msr\"\n"
2706         "--msr msr      print 32-bit value at address \"msr\"\n"
2707         "--MSR msr      print 64-bit Value at address \"msr\"\n"
2708         "--version      print version information\n"
2709         "\n"
2710         "For more help, run \"man turbostat\"\n");
2711 }
2712
2713
2714 /*
2715  * in /dev/cpu/ return success for names that are numbers
2716  * ie. filter out ".", "..", "microcode".
2717  */
2718 int dir_filter(const struct dirent *dirp)
2719 {
2720         if (isdigit(dirp->d_name[0]))
2721                 return 1;
2722         else
2723                 return 0;
2724 }
2725
2726 int open_dev_cpu_msr(int dummy1)
2727 {
2728         return 0;
2729 }
2730
2731 void topology_probe()
2732 {
2733         int i;
2734         int max_core_id = 0;
2735         int max_package_id = 0;
2736         int max_siblings = 0;
2737         struct cpu_topology {
2738                 int core_id;
2739                 int physical_package_id;
2740         } *cpus;
2741
2742         /* Initialize num_cpus, max_cpu_num */
2743         topo.num_cpus = 0;
2744         topo.max_cpu_num = 0;
2745         for_all_proc_cpus(count_cpus);
2746         if (!summary_only && topo.num_cpus > 1)
2747                 show_cpu = 1;
2748
2749         if (debug > 1)
2750                 fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num);
2751
2752         cpus = calloc(1, (topo.max_cpu_num  + 1) * sizeof(struct cpu_topology));
2753         if (cpus == NULL)
2754                 err(1, "calloc cpus");
2755
2756         /*
2757          * Allocate and initialize cpu_present_set
2758          */
2759         cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1));
2760         if (cpu_present_set == NULL)
2761                 err(3, "CPU_ALLOC");
2762         cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
2763         CPU_ZERO_S(cpu_present_setsize, cpu_present_set);
2764         for_all_proc_cpus(mark_cpu_present);
2765
2766         /*
2767          * Allocate and initialize cpu_affinity_set
2768          */
2769         cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1));
2770         if (cpu_affinity_set == NULL)
2771                 err(3, "CPU_ALLOC");
2772         cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
2773         CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
2774
2775
2776         /*
2777          * For online cpus
2778          * find max_core_id, max_package_id
2779          */
2780         for (i = 0; i <= topo.max_cpu_num; ++i) {
2781                 int siblings;
2782
2783                 if (cpu_is_not_present(i)) {
2784                         if (debug > 1)
2785                                 fprintf(stderr, "cpu%d NOT PRESENT\n", i);
2786                         continue;
2787                 }
2788                 cpus[i].core_id = get_core_id(i);
2789                 if (cpus[i].core_id > max_core_id)
2790                         max_core_id = cpus[i].core_id;
2791
2792                 cpus[i].physical_package_id = get_physical_package_id(i);
2793                 if (cpus[i].physical_package_id > max_package_id)
2794                         max_package_id = cpus[i].physical_package_id;
2795
2796                 siblings = get_num_ht_siblings(i);
2797                 if (siblings > max_siblings)
2798                         max_siblings = siblings;
2799                 if (debug > 1)
2800                         fprintf(stderr, "cpu %d pkg %d core %d\n",
2801                                 i, cpus[i].physical_package_id, cpus[i].core_id);
2802         }
2803         topo.num_cores_per_pkg = max_core_id + 1;
2804         if (debug > 1)
2805                 fprintf(stderr, "max_core_id %d, sizing for %d cores per package\n",
2806                         max_core_id, topo.num_cores_per_pkg);
2807         if (debug && !summary_only && topo.num_cores_per_pkg > 1)
2808                 show_core = 1;
2809
2810         topo.num_packages = max_package_id + 1;
2811         if (debug > 1)
2812                 fprintf(stderr, "max_package_id %d, sizing for %d packages\n",
2813                         max_package_id, topo.num_packages);
2814         if (debug && !summary_only && topo.num_packages > 1)
2815                 show_pkg = 1;
2816
2817         topo.num_threads_per_core = max_siblings;
2818         if (debug > 1)
2819                 fprintf(stderr, "max_siblings %d\n", max_siblings);
2820
2821         free(cpus);
2822 }
2823
2824 void
2825 allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p)
2826 {
2827         int i;
2828
2829         *t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg *
2830                 topo.num_packages, sizeof(struct thread_data));
2831         if (*t == NULL)
2832                 goto error;
2833
2834         for (i = 0; i < topo.num_threads_per_core *
2835                 topo.num_cores_per_pkg * topo.num_packages; i++)
2836                 (*t)[i].cpu_id = -1;
2837
2838         *c = calloc(topo.num_cores_per_pkg * topo.num_packages,
2839                 sizeof(struct core_data));
2840         if (*c == NULL)
2841                 goto error;
2842
2843         for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++)
2844                 (*c)[i].core_id = -1;
2845
2846         *p = calloc(topo.num_packages, sizeof(struct pkg_data));
2847         if (*p == NULL)
2848                 goto error;
2849
2850         for (i = 0; i < topo.num_packages; i++)
2851                 (*p)[i].package_id = i;
2852
2853         return;
2854 error:
2855         err(1, "calloc counters");
2856 }
2857 /*
2858  * init_counter()
2859  *
2860  * set cpu_id, core_num, pkg_num
2861  * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE
2862  *
2863  * increment topo.num_cores when 1st core in pkg seen
2864  */
2865 void init_counter(struct thread_data *thread_base, struct core_data *core_base,
2866         struct pkg_data *pkg_base, int thread_num, int core_num,
2867         int pkg_num, int cpu_id)
2868 {
2869         struct thread_data *t;
2870         struct core_data *c;
2871         struct pkg_data *p;
2872
2873         t = GET_THREAD(thread_base, thread_num, core_num, pkg_num);
2874         c = GET_CORE(core_base, core_num, pkg_num);
2875         p = GET_PKG(pkg_base, pkg_num);
2876
2877         t->cpu_id = cpu_id;
2878         if (thread_num == 0) {
2879                 t->flags |= CPU_IS_FIRST_THREAD_IN_CORE;
2880                 if (cpu_is_first_core_in_package(cpu_id))
2881                         t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE;
2882         }
2883
2884         c->core_id = core_num;
2885         p->package_id = pkg_num;
2886 }
2887
2888
2889 int initialize_counters(int cpu_id)
2890 {
2891         int my_thread_id, my_core_id, my_package_id;
2892
2893         my_package_id = get_physical_package_id(cpu_id);
2894         my_core_id = get_core_id(cpu_id);
2895         my_thread_id = get_cpu_position_in_core(cpu_id);
2896         if (!my_thread_id)
2897                 topo.num_cores++;
2898
2899         init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
2900         init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
2901         return 0;
2902 }
2903
2904 void allocate_output_buffer()
2905 {
2906         output_buffer = calloc(1, (1 + topo.num_cpus) * 1024);
2907         outp = output_buffer;
2908         if (outp == NULL)
2909                 err(-1, "calloc output buffer");
2910 }
2911
2912 void setup_all_buffers(void)
2913 {
2914         topology_probe();
2915         allocate_counters(&thread_even, &core_even, &package_even);
2916         allocate_counters(&thread_odd, &core_odd, &package_odd);
2917         allocate_output_buffer();
2918         for_all_proc_cpus(initialize_counters);
2919 }
2920
2921 void set_base_cpu(void)
2922 {
2923         base_cpu = sched_getcpu();
2924         if (base_cpu < 0)
2925                 err(-ENODEV, "No valid cpus found");
2926
2927         if (debug > 1)
2928                 fprintf(stderr, "base_cpu = %d\n", base_cpu);
2929 }
2930
2931 void turbostat_init()
2932 {
2933         setup_all_buffers();
2934         set_base_cpu();
2935         check_dev_msr();
2936         check_permissions();
2937         process_cpuid();
2938
2939
2940         if (debug)
2941                 for_all_cpus(print_epb, ODD_COUNTERS);
2942
2943         if (debug)
2944                 for_all_cpus(print_perf_limit, ODD_COUNTERS);
2945
2946         if (debug)
2947                 for_all_cpus(print_rapl, ODD_COUNTERS);
2948
2949         for_all_cpus(set_temperature_target, ODD_COUNTERS);
2950
2951         if (debug)
2952                 for_all_cpus(print_thermal, ODD_COUNTERS);
2953 }
2954
2955 int fork_it(char **argv)
2956 {
2957         pid_t child_pid;
2958         int status;
2959
2960         status = for_all_cpus(get_counters, EVEN_COUNTERS);
2961         if (status)
2962                 exit(status);
2963         /* clear affinity side-effect of get_counters() */
2964         sched_setaffinity(0, cpu_present_setsize, cpu_present_set);
2965         gettimeofday(&tv_even, (struct timezone *)NULL);
2966
2967         child_pid = fork();
2968         if (!child_pid) {
2969                 /* child */
2970                 execvp(argv[0], argv);
2971         } else {
2972
2973                 /* parent */
2974                 if (child_pid == -1)
2975                         err(1, "fork");
2976
2977                 signal(SIGINT, SIG_IGN);
2978                 signal(SIGQUIT, SIG_IGN);
2979                 if (waitpid(child_pid, &status, 0) == -1)
2980                         err(status, "waitpid");
2981         }
2982         /*
2983          * n.b. fork_it() does not check for errors from for_all_cpus()
2984          * because re-starting is problematic when forking
2985          */
2986         for_all_cpus(get_counters, ODD_COUNTERS);
2987         gettimeofday(&tv_odd, (struct timezone *)NULL);
2988         timersub(&tv_odd, &tv_even, &tv_delta);
2989         for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
2990         compute_average(EVEN_COUNTERS);
2991         format_all_counters(EVEN_COUNTERS);
2992         flush_stderr();
2993
2994         fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0);
2995
2996         return status;
2997 }
2998
2999 int get_and_dump_counters(void)
3000 {
3001         int status;
3002
3003         status = for_all_cpus(get_counters, ODD_COUNTERS);
3004         if (status)
3005                 return status;
3006
3007         status = for_all_cpus(dump_counters, ODD_COUNTERS);
3008         if (status)
3009                 return status;
3010
3011         flush_stdout();
3012
3013         return status;
3014 }
3015
3016 void print_version() {
3017         fprintf(stderr, "turbostat version 4.7 27-May, 2015"
3018                 " - Len Brown <lenb@kernel.org>\n");
3019 }
3020
3021 void cmdline(int argc, char **argv)
3022 {
3023         int opt;
3024         int option_index = 0;
3025         static struct option long_options[] = {
3026                 {"Counter",     required_argument,      0, 'C'},
3027                 {"counter",     required_argument,      0, 'c'},
3028                 {"Dump",        no_argument,            0, 'D'},
3029                 {"debug",       no_argument,            0, 'd'},
3030                 {"interval",    required_argument,      0, 'i'},
3031                 {"help",        no_argument,            0, 'h'},
3032                 {"Joules",      no_argument,            0, 'J'},
3033                 {"MSR",         required_argument,      0, 'M'},
3034                 {"msr",         required_argument,      0, 'm'},
3035                 {"Package",     no_argument,            0, 'p'},
3036                 {"processor",   no_argument,            0, 'p'},
3037                 {"Summary",     no_argument,            0, 'S'},
3038                 {"TCC",         required_argument,      0, 'T'},
3039                 {"version",     no_argument,            0, 'v' },
3040                 {0,             0,                      0,  0 }
3041         };
3042
3043         progname = argv[0];
3044
3045         while ((opt = getopt_long_only(argc, argv, "C:c:Ddhi:JM:m:PpST:v",
3046                                 long_options, &option_index)) != -1) {
3047                 switch (opt) {
3048                 case 'C':
3049                         sscanf(optarg, "%x", &extra_delta_offset64);
3050                         break;
3051                 case 'c':
3052                         sscanf(optarg, "%x", &extra_delta_offset32);
3053                         break;
3054                 case 'D':
3055                         dump_only++;
3056                         break;
3057                 case 'd':
3058                         debug++;
3059                         break;
3060                 case 'h':
3061                 default:
3062                         help();
3063                         exit(1);
3064                 case 'i':
3065                         interval_sec = atoi(optarg);
3066                         break;
3067                 case 'J':
3068                         rapl_joules++;
3069                         break;
3070                 case 'M':
3071                         sscanf(optarg, "%x", &extra_msr_offset64);
3072                         break;
3073                 case 'm':
3074                         sscanf(optarg, "%x", &extra_msr_offset32);
3075                         break;
3076                 case 'P':
3077                         show_pkg_only++;
3078                         break;
3079                 case 'p':
3080                         show_core_only++;
3081                         break;
3082                 case 'S':
3083                         summary_only++;
3084                         break;
3085                 case 'T':
3086                         tcc_activation_temp_override = atoi(optarg);
3087                         break;
3088                 case 'v':
3089                         print_version();
3090                         exit(0);
3091                         break;
3092                 }
3093         }
3094 }
3095
3096 int main(int argc, char **argv)
3097 {
3098         cmdline(argc, argv);
3099
3100         if (debug)
3101                 print_version();
3102
3103         turbostat_init();
3104
3105         /* dump counters and exit */
3106         if (dump_only)
3107                 return get_and_dump_counters();
3108
3109         /*
3110          * if any params left, it must be a command to fork
3111          */
3112         if (argc - optind)
3113                 return fork_it(argv + optind);
3114         else
3115                 turbostat_loop();
3116
3117         return 0;
3118 }