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 unsigned int aperf_mperf_multiplier = 1;
  75 int do_smi;
  76 double bclk;
  77 double base_hz;
  78 unsigned int has_base_hz;
  79 double tsc_tweak = 1.0;
  80 unsigned int show_pkg;
  81 unsigned int show_core;
  82 unsigned int show_cpu;
  83 unsigned int show_pkg_only;
  84 unsigned int show_core_only;
  85 char *output_buffer, *outp;
  86 unsigned int do_rapl;
  87 unsigned int do_dts;
  88 unsigned int do_ptm;
  89 unsigned int tcc_activation_temp;
  90 unsigned int tcc_activation_temp_override;
  91 double rapl_power_units, rapl_time_units;
  92 double rapl_dram_energy_units, rapl_energy_units;
  93 double rapl_joule_counter_range;
  94 unsigned int do_core_perf_limit_reasons;
  95 unsigned int do_gfx_perf_limit_reasons;
  96 unsigned int do_ring_perf_limit_reasons;
  97 unsigned int crystal_hz;
  98 unsigned long long tsc_hz;
  99 int base_cpu;
 100 double discover_bclk(unsigned int family, unsigned int model);
 101
 102 #define RAPL_PKG                (1 << 0)
 103                                         /* 0x610 MSR_PKG_POWER_LIMIT */
 104                                         /* 0x611 MSR_PKG_ENERGY_STATUS */
 105 #define RAPL_PKG_PERF_STATUS    (1 << 1)
 106                                         /* 0x613 MSR_PKG_PERF_STATUS */
 107 #define RAPL_PKG_POWER_INFO     (1 << 2)
 108                                         /* 0x614 MSR_PKG_POWER_INFO */
 109
 110 #define RAPL_DRAM               (1 << 3)
 111                                         /* 0x618 MSR_DRAM_POWER_LIMIT */
 112                                         /* 0x619 MSR_DRAM_ENERGY_STATUS */
 113 #define RAPL_DRAM_PERF_STATUS   (1 << 4)
 114                                         /* 0x61b MSR_DRAM_PERF_STATUS */
 115 #define RAPL_DRAM_POWER_INFO    (1 << 5)
 116                                         /* 0x61c MSR_DRAM_POWER_INFO */
 117
 118 #define RAPL_CORES              (1 << 6)
 119                                         /* 0x638 MSR_PP0_POWER_LIMIT */
 120                                         /* 0x639 MSR_PP0_ENERGY_STATUS */
 121 #define RAPL_CORE_POLICY        (1 << 7)
 122                                         /* 0x63a MSR_PP0_POLICY */
 123
 124 #define RAPL_GFX                (1 << 8)
 125                                         /* 0x640 MSR_PP1_POWER_LIMIT */
 126                                         /* 0x641 MSR_PP1_ENERGY_STATUS */
 127                                         /* 0x642 MSR_PP1_POLICY */
 128 #define TJMAX_DEFAULT   100
 129
 130 #define MAX(a, b) ((a) > (b) ? (a) : (b))
 131
 132 int aperf_mperf_unstable;
 133 int backwards_count;
 134 char *progname;
 135
 136 cpu_set_t *cpu_present_set, *cpu_affinity_set;
 137 size_t cpu_present_setsize, cpu_affinity_setsize;
 138
 139 struct thread_data {
 140         unsigned long long tsc;
 141         unsigned long long aperf;
 142         unsigned long long mperf;
 143         unsigned long long c1;
 144         unsigned long long extra_msr64;
 145         unsigned long long extra_delta64;
 146         unsigned long long extra_msr32;
 147         unsigned long long extra_delta32;
 148         unsigned int smi_count;
 149         unsigned int cpu_id;
 150         unsigned int flags;
 151 #define CPU_IS_FIRST_THREAD_IN_CORE     0x2
 152 #define CPU_IS_FIRST_CORE_IN_PACKAGE    0x4
 153 } *thread_even, *thread_odd;
 154
 155 struct core_data {
 156         unsigned long long c3;
 157         unsigned long long c6;
 158         unsigned long long c7;
 159         unsigned int core_temp_c;
 160         unsigned int core_id;
 161 } *core_even, *core_odd;
 162
 163 struct pkg_data {
 164         unsigned long long pc2;
 165         unsigned long long pc3;
 166         unsigned long long pc6;
 167         unsigned long long pc7;
 168         unsigned long long pc8;
 169         unsigned long long pc9;
 170         unsigned long long pc10;
 171         unsigned long long pkg_wtd_core_c0;
 172         unsigned long long pkg_any_core_c0;
 173         unsigned long long pkg_any_gfxe_c0;
 174         unsigned long long pkg_both_core_gfxe_c0;
 175         unsigned int package_id;
 176         unsigned int energy_pkg;        /* MSR_PKG_ENERGY_STATUS */
 177         unsigned int energy_dram;       /* MSR_DRAM_ENERGY_STATUS */
 178         unsigned int energy_cores;      /* MSR_PP0_ENERGY_STATUS */
 179         unsigned int energy_gfx;        /* MSR_PP1_ENERGY_STATUS */
 180         unsigned int rapl_pkg_perf_status;      /* MSR_PKG_PERF_STATUS */
 181         unsigned int rapl_dram_perf_status;     /* MSR_DRAM_PERF_STATUS */
 182         unsigned int pkg_temp_c;
 183
 184 } *package_even, *package_odd;
 185
 186 #define ODD_COUNTERS thread_odd, core_odd, package_odd
 187 #define EVEN_COUNTERS thread_even, core_even, package_even
 188
 189 #define GET_THREAD(thread_base, thread_no, core_no, pkg_no) \
 190         (thread_base + (pkg_no) * topo.num_cores_per_pkg * \
 191                 topo.num_threads_per_core + \
 192                 (core_no) * topo.num_threads_per_core + (thread_no))
 193 #define GET_CORE(core_base, core_no, pkg_no) \
 194         (core_base + (pkg_no) * topo.num_cores_per_pkg + (core_no))
 195 #define GET_PKG(pkg_base, pkg_no) (pkg_base + pkg_no)
 196
 197 struct system_summary {
 198         struct thread_data threads;
 199         struct core_data cores;
 200         struct pkg_data packages;
 201 } sum, average;
 202
 203
 204 struct topo_params {
 205         int num_packages;
 206         int num_cpus;
 207         int num_cores;
 208         int max_cpu_num;
 209         int num_cores_per_pkg;
 210         int num_threads_per_core;
 211 } topo;
 212
 213 struct timeval tv_even, tv_odd, tv_delta;
 214
 215 void setup_all_buffers(void);
 216
 217 int cpu_is_not_present(int cpu)
 218 {
 219         return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set);
 220 }
 221 /*
 222  * run func(thread, core, package) in topology order
 223  * skip non-present cpus
 224  */
 225
 226 int for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *),
 227         struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base)
 228 {
 229         int retval, pkg_no, core_no, thread_no;
 230
 231         for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
 232                 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
 233                         for (thread_no = 0; thread_no <
 234                                 topo.num_threads_per_core; ++thread_no) {
 235                                 struct thread_data *t;
 236                                 struct core_data *c;
 237                                 struct pkg_data *p;
 238
 239                                 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
 240
 241                                 if (cpu_is_not_present(t->cpu_id))
 242                                         continue;
 243
 244                                 c = GET_CORE(core_base, core_no, pkg_no);
 245                                 p = GET_PKG(pkg_base, pkg_no);
 246
 247                                 retval = func(t, c, p);
 248                                 if (retval)
 249                                         return retval;
 250                         }
 251                 }
 252         }
 253         return 0;
 254 }
 255
 256 int cpu_migrate(int cpu)
 257 {
 258         CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
 259         CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set);
 260         if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1)
 261                 return -1;
 262         else
 263                 return 0;
 264 }
 265
 266 int get_msr(int cpu, off_t offset, unsigned long long *msr)
 267 {
 268         ssize_t retval;
 269         char pathname[32];
 270         int fd;
 271
 272         sprintf(pathname, "/dev/cpu/%d/msr", cpu);
 273         fd = open(pathname, O_RDONLY);
 274         if (fd < 0)
 275                 err(-1, "%s open failed, try chown or chmod +r /dev/cpu/*/msr, or run as root", pathname);
 276
 277         retval = pread(fd, msr, sizeof *msr, offset);
 278         close(fd);
 279
 280         if (retval != sizeof *msr)
 281                 err(-1, "%s offset 0x%llx read failed", pathname, (unsigned long long)offset);
 282
 283         return 0;
 284 }
 285
 286 /*
 287  * Example Format w/ field column widths:
 288  *
 289  *  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
 290  * 123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678
 291  */
 292
 293 void print_header(void)
 294 {
 295         if (show_pkg)
 296                 outp += sprintf(outp, " Package");
 297         if (show_core)
 298                 outp += sprintf(outp, "    Core");
 299         if (show_cpu)
 300                 outp += sprintf(outp, "     CPU");
 301         if (has_aperf)
 302                 outp += sprintf(outp, " Avg_MHz");
 303         if (has_aperf)
 304                 outp += sprintf(outp, "   %%Busy");
 305         if (has_aperf)
 306                 outp += sprintf(outp, " Bzy_MHz");
 307         outp += sprintf(outp, " TSC_MHz");
 308
 309         if (extra_delta_offset32)
 310                 outp += sprintf(outp, "  count 0x%03X", extra_delta_offset32);
 311         if (extra_delta_offset64)
 312                 outp += sprintf(outp, "  COUNT 0x%03X", extra_delta_offset64);
 313         if (extra_msr_offset32)
 314                 outp += sprintf(outp, "   MSR 0x%03X", extra_msr_offset32);
 315         if (extra_msr_offset64)
 316                 outp += sprintf(outp, "           MSR 0x%03X", extra_msr_offset64);
 317
 318         if (!debug)
 319                 goto done;
 320
 321         if (do_smi)
 322                 outp += sprintf(outp, "     SMI");
 323
 324         if (do_nhm_cstates)
 325                 outp += sprintf(outp, "  CPU%%c1");
 326         if (do_nhm_cstates && !do_slm_cstates && !do_knl_cstates)
 327                 outp += sprintf(outp, "  CPU%%c3");
 328         if (do_nhm_cstates)
 329                 outp += sprintf(outp, "  CPU%%c6");
 330         if (do_snb_cstates)
 331                 outp += sprintf(outp, "  CPU%%c7");
 332
 333         if (do_dts)
 334                 outp += sprintf(outp, " CoreTmp");
 335         if (do_ptm)
 336                 outp += sprintf(outp, "  PkgTmp");
 337
 338         if (do_skl_residency) {
 339                 outp += sprintf(outp, " Totl%%C0");
 340                 outp += sprintf(outp, "  Any%%C0");
 341                 outp += sprintf(outp, "  GFX%%C0");
 342                 outp += sprintf(outp, " CPUGFX%%");
 343         }
 344
 345         if (do_pc2)
 346                 outp += sprintf(outp, " Pkg%%pc2");
 347         if (do_pc3)
 348                 outp += sprintf(outp, " Pkg%%pc3");
 349         if (do_pc6)
 350                 outp += sprintf(outp, " Pkg%%pc6");
 351         if (do_pc7)
 352                 outp += sprintf(outp, " Pkg%%pc7");
 353         if (do_c8_c9_c10) {
 354                 outp += sprintf(outp, " Pkg%%pc8");
 355                 outp += sprintf(outp, " Pkg%%pc9");
 356                 outp += sprintf(outp, " Pk%%pc10");
 357         }
 358
 359         if (do_rapl && !rapl_joules) {
 360                 if (do_rapl & RAPL_PKG)
 361                         outp += sprintf(outp, " PkgWatt");
 362                 if (do_rapl & RAPL_CORES)
 363                         outp += sprintf(outp, " CorWatt");
 364                 if (do_rapl & RAPL_GFX)
 365                         outp += sprintf(outp, " GFXWatt");
 366                 if (do_rapl & RAPL_DRAM)
 367                         outp += sprintf(outp, " RAMWatt");
 368                 if (do_rapl & RAPL_PKG_PERF_STATUS)
 369                         outp += sprintf(outp, "   PKG_%%");
 370                 if (do_rapl & RAPL_DRAM_PERF_STATUS)
 371                         outp += sprintf(outp, "   RAM_%%");
 372         } else if (do_rapl && rapl_joules) {
 373                 if (do_rapl & RAPL_PKG)
 374                         outp += sprintf(outp, "   Pkg_J");
 375                 if (do_rapl & RAPL_CORES)
 376                         outp += sprintf(outp, "   Cor_J");
 377                 if (do_rapl & RAPL_GFX)
 378                         outp += sprintf(outp, "   GFX_J");
 379                 if (do_rapl & RAPL_DRAM)
 380                         outp += sprintf(outp, "   RAM_J");
 381                 if (do_rapl & RAPL_PKG_PERF_STATUS)
 382                         outp += sprintf(outp, "   PKG_%%");
 383                 if (do_rapl & RAPL_DRAM_PERF_STATUS)
 384                         outp += sprintf(outp, "   RAM_%%");
 385                 outp += sprintf(outp, "   time");
 386
 387         }
 388     done:
 389         outp += sprintf(outp, "\n");
 390 }
 391
 392 int dump_counters(struct thread_data *t, struct core_data *c,
 393         struct pkg_data *p)
 394 {
 395         outp += sprintf(outp, "t %p, c %p, p %p\n", t, c, p);
 396
 397         if (t) {
 398                 outp += sprintf(outp, "CPU: %d flags 0x%x\n",
 399                         t->cpu_id, t->flags);
 400                 outp += sprintf(outp, "TSC: %016llX\n", t->tsc);
 401                 outp += sprintf(outp, "aperf: %016llX\n", t->aperf);
 402                 outp += sprintf(outp, "mperf: %016llX\n", t->mperf);
 403                 outp += sprintf(outp, "c1: %016llX\n", t->c1);
 404                 outp += sprintf(outp, "msr0x%x: %08llX\n",
 405                         extra_delta_offset32, t->extra_delta32);
 406                 outp += sprintf(outp, "msr0x%x: %016llX\n",
 407                         extra_delta_offset64, t->extra_delta64);
 408                 outp += sprintf(outp, "msr0x%x: %08llX\n",
 409                         extra_msr_offset32, t->extra_msr32);
 410                 outp += sprintf(outp, "msr0x%x: %016llX\n",
 411                         extra_msr_offset64, t->extra_msr64);
 412                 if (do_smi)
 413                         outp += sprintf(outp, "SMI: %08X\n", t->smi_count);
 414         }
 415
 416         if (c) {
 417                 outp += sprintf(outp, "core: %d\n", c->core_id);
 418                 outp += sprintf(outp, "c3: %016llX\n", c->c3);
 419                 outp += sprintf(outp, "c6: %016llX\n", c->c6);
 420                 outp += sprintf(outp, "c7: %016llX\n", c->c7);
 421                 outp += sprintf(outp, "DTS: %dC\n", c->core_temp_c);
 422         }
 423
 424         if (p) {
 425                 outp += sprintf(outp, "package: %d\n", p->package_id);
 426
 427                 outp += sprintf(outp, "Weighted cores: %016llX\n", p->pkg_wtd_core_c0);
 428                 outp += sprintf(outp, "Any cores: %016llX\n", p->pkg_any_core_c0);
 429                 outp += sprintf(outp, "Any GFX: %016llX\n", p->pkg_any_gfxe_c0);
 430                 outp += sprintf(outp, "CPU + GFX: %016llX\n", p->pkg_both_core_gfxe_c0);
 431
 432                 outp += sprintf(outp, "pc2: %016llX\n", p->pc2);
 433                 if (do_pc3)
 434                         outp += sprintf(outp, "pc3: %016llX\n", p->pc3);
 435                 if (do_pc6)
 436                         outp += sprintf(outp, "pc6: %016llX\n", p->pc6);
 437                 if (do_pc7)
 438                         outp += sprintf(outp, "pc7: %016llX\n", p->pc7);
 439                 outp += sprintf(outp, "pc8: %016llX\n", p->pc8);
 440                 outp += sprintf(outp, "pc9: %016llX\n", p->pc9);
 441                 outp += sprintf(outp, "pc10: %016llX\n", p->pc10);
 442                 outp += sprintf(outp, "Joules PKG: %0X\n", p->energy_pkg);
 443                 outp += sprintf(outp, "Joules COR: %0X\n", p->energy_cores);
 444                 outp += sprintf(outp, "Joules GFX: %0X\n", p->energy_gfx);
 445                 outp += sprintf(outp, "Joules RAM: %0X\n", p->energy_dram);
 446                 outp += sprintf(outp, "Throttle PKG: %0X\n",
 447                         p->rapl_pkg_perf_status);
 448                 outp += sprintf(outp, "Throttle RAM: %0X\n",
 449                         p->rapl_dram_perf_status);
 450                 outp += sprintf(outp, "PTM: %dC\n", p->pkg_temp_c);
 451         }
 452
 453         outp += sprintf(outp, "\n");
 454
 455         return 0;
 456 }
 457
 458 /*
 459  * column formatting convention & formats
 460  */
 461 int format_counters(struct thread_data *t, struct core_data *c,
 462         struct pkg_data *p)
 463 {
 464         double interval_float;
 465         char *fmt8;
 466
 467          /* if showing only 1st thread in core and this isn't one, bail out */
 468         if (show_core_only && !(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
 469                 return 0;
 470
 471          /* if showing only 1st thread in pkg and this isn't one, bail out */
 472         if (show_pkg_only && !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
 473                 return 0;
 474
 475         interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0;
 476
 477         /* topo columns, print blanks on 1st (average) line */
 478         if (t == &average.threads) {
 479                 if (show_pkg)
 480                         outp += sprintf(outp, "       -");
 481                 if (show_core)
 482                         outp += sprintf(outp, "       -");
 483                 if (show_cpu)
 484                         outp += sprintf(outp, "       -");
 485         } else {
 486                 if (show_pkg) {
 487                         if (p)
 488                                 outp += sprintf(outp, "%8d", p->package_id);
 489                         else
 490                                 outp += sprintf(outp, "       -");
 491                 }
 492                 if (show_core) {
 493                         if (c)
 494                                 outp += sprintf(outp, "%8d", c->core_id);
 495                         else
 496                                 outp += sprintf(outp, "       -");
 497                 }
 498                 if (show_cpu)
 499                         outp += sprintf(outp, "%8d", t->cpu_id);
 500         }
 501
 502         /* Avg_MHz */
 503         if (has_aperf)
 504                 outp += sprintf(outp, "%8.0f",
 505                         1.0 / units * t->aperf / interval_float);
 506
 507         /* %Busy */
 508         if (has_aperf) {
 509                 if (!skip_c0)
 510                         outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc/tsc_tweak);
 511                 else
 512                         outp += sprintf(outp, "********");
 513         }
 514
 515         /* Bzy_MHz */
 516         if (has_aperf) {
 517                 if (has_base_hz)
 518                         outp += sprintf(outp, "%8.0f", base_hz / units * t->aperf / t->mperf);
 519                 else
 520                         outp += sprintf(outp, "%8.0f",
 521                                 1.0 * t->tsc / units * t->aperf / t->mperf / interval_float);
 522         }
 523
 524         /* TSC_MHz */
 525         outp += sprintf(outp, "%8.0f", 1.0 * t->tsc/units/interval_float);
 526
 527         /* delta */
 528         if (extra_delta_offset32)
 529                 outp += sprintf(outp, "  %11llu", t->extra_delta32);
 530
 531         /* DELTA */
 532         if (extra_delta_offset64)
 533                 outp += sprintf(outp, "  %11llu", t->extra_delta64);
 534         /* msr */
 535         if (extra_msr_offset32)
 536                 outp += sprintf(outp, "  0x%08llx", t->extra_msr32);
 537
 538         /* MSR */
 539         if (extra_msr_offset64)
 540                 outp += sprintf(outp, "  0x%016llx", t->extra_msr64);
 541
 542         if (!debug)
 543                 goto done;
 544
 545         /* SMI */
 546         if (do_smi)
 547                 outp += sprintf(outp, "%8d", t->smi_count);
 548
 549         if (do_nhm_cstates) {
 550                 if (!skip_c1)
 551                         outp += sprintf(outp, "%8.2f", 100.0 * t->c1/t->tsc);
 552                 else
 553                         outp += sprintf(outp, "********");
 554         }
 555
 556         /* print per-core data only for 1st thread in core */
 557         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
 558                 goto done;
 559
 560         if (do_nhm_cstates && !do_slm_cstates && !do_knl_cstates)
 561                 outp += sprintf(outp, "%8.2f", 100.0 * c->c3/t->tsc);
 562         if (do_nhm_cstates)
 563                 outp += sprintf(outp, "%8.2f", 100.0 * c->c6/t->tsc);
 564         if (do_snb_cstates)
 565                 outp += sprintf(outp, "%8.2f", 100.0 * c->c7/t->tsc);
 566
 567         if (do_dts)
 568                 outp += sprintf(outp, "%8d", c->core_temp_c);
 569
 570         /* print per-package data only for 1st core in package */
 571         if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
 572                 goto done;
 573
 574         /* PkgTmp */
 575         if (do_ptm)
 576                 outp += sprintf(outp, "%8d", p->pkg_temp_c);
 577
 578         /* Totl%C0, Any%C0 GFX%C0 CPUGFX% */
 579         if (do_skl_residency) {
 580                 outp += sprintf(outp, "%8.2f", 100.0 * p->pkg_wtd_core_c0/t->tsc);
 581                 outp += sprintf(outp, "%8.2f", 100.0 * p->pkg_any_core_c0/t->tsc);
 582                 outp += sprintf(outp, "%8.2f", 100.0 * p->pkg_any_gfxe_c0/t->tsc);
 583                 outp += sprintf(outp, "%8.2f", 100.0 * p->pkg_both_core_gfxe_c0/t->tsc);
 584         }
 585
 586         if (do_pc2)
 587                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc2/t->tsc);
 588         if (do_pc3)
 589                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc3/t->tsc);
 590         if (do_pc6)
 591                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc6/t->tsc);
 592         if (do_pc7)
 593                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc7/t->tsc);
 594         if (do_c8_c9_c10) {
 595                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc8/t->tsc);
 596                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc9/t->tsc);
 597                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc10/t->tsc);
 598         }
 599
 600         /*
 601          * If measurement interval exceeds minimum RAPL Joule Counter range,
 602          * indicate that results are suspect by printing "**" in fraction place.
 603          */
 604         if (interval_float < rapl_joule_counter_range)
 605                 fmt8 = "%8.2f";
 606         else
 607                 fmt8 = " %6.0f**";
 608
 609         if (do_rapl && !rapl_joules) {
 610                 if (do_rapl & RAPL_PKG)
 611                         outp += sprintf(outp, fmt8, p->energy_pkg * rapl_energy_units / interval_float);
 612                 if (do_rapl & RAPL_CORES)
 613                         outp += sprintf(outp, fmt8, p->energy_cores * rapl_energy_units / interval_float);
 614                 if (do_rapl & RAPL_GFX)
 615                         outp += sprintf(outp, fmt8, p->energy_gfx * rapl_energy_units / interval_float);
 616                 if (do_rapl & RAPL_DRAM)
 617                         outp += sprintf(outp, fmt8, p->energy_dram * rapl_dram_energy_units / interval_float);
 618                 if (do_rapl & RAPL_PKG_PERF_STATUS)
 619                         outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float);
 620                 if (do_rapl & RAPL_DRAM_PERF_STATUS)
 621                         outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float);
 622         } else if (do_rapl && rapl_joules) {
 623                 if (do_rapl & RAPL_PKG)
 624                         outp += sprintf(outp, fmt8,
 625                                         p->energy_pkg * rapl_energy_units);
 626                 if (do_rapl & RAPL_CORES)
 627                         outp += sprintf(outp, fmt8,
 628                                         p->energy_cores * rapl_energy_units);
 629                 if (do_rapl & RAPL_GFX)
 630                         outp += sprintf(outp, fmt8,
 631                                         p->energy_gfx * rapl_energy_units);
 632                 if (do_rapl & RAPL_DRAM)
 633                         outp += sprintf(outp, fmt8,
 634                                         p->energy_dram * rapl_dram_energy_units);
 635                 if (do_rapl & RAPL_PKG_PERF_STATUS)
 636                         outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float);
 637                 if (do_rapl & RAPL_DRAM_PERF_STATUS)
 638                         outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float);
 639
 640                 outp += sprintf(outp, fmt8, interval_float);
 641         }
 642 done:
 643         outp += sprintf(outp, "\n");
 644
 645         return 0;
 646 }
 647
 648 void flush_stdout()
 649 {
 650         fputs(output_buffer, stdout);
 651         fflush(stdout);
 652         outp = output_buffer;
 653 }
 654 void flush_stderr()
 655 {
 656         fputs(output_buffer, stderr);
 657         outp = output_buffer;
 658 }
 659 void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 660 {
 661         static int printed;
 662
 663         if (!printed || !summary_only)
 664                 print_header();
 665
 666         if (topo.num_cpus > 1)
 667                 format_counters(&average.threads, &average.cores,
 668                         &average.packages);
 669
 670         printed = 1;
 671
 672         if (summary_only)
 673                 return;
 674
 675         for_all_cpus(format_counters, t, c, p);
 676 }
 677
 678 #define DELTA_WRAP32(new, old)                  \
 679         if (new > old) {                        \
 680                 old = new - old;                \
 681         } else {                                \
 682                 old = 0x100000000 + new - old;  \
 683         }
 684
 685 void
 686 delta_package(struct pkg_data *new, struct pkg_data *old)
 687 {
 688
 689         if (do_skl_residency) {
 690                 old->pkg_wtd_core_c0 = new->pkg_wtd_core_c0 - old->pkg_wtd_core_c0;
 691                 old->pkg_any_core_c0 = new->pkg_any_core_c0 - old->pkg_any_core_c0;
 692                 old->pkg_any_gfxe_c0 = new->pkg_any_gfxe_c0 - old->pkg_any_gfxe_c0;
 693                 old->pkg_both_core_gfxe_c0 = new->pkg_both_core_gfxe_c0 - old->pkg_both_core_gfxe_c0;
 694         }
 695         old->pc2 = new->pc2 - old->pc2;
 696         if (do_pc3)
 697                 old->pc3 = new->pc3 - old->pc3;
 698         if (do_pc6)
 699                 old->pc6 = new->pc6 - old->pc6;
 700         if (do_pc7)
 701                 old->pc7 = new->pc7 - old->pc7;
 702         old->pc8 = new->pc8 - old->pc8;
 703         old->pc9 = new->pc9 - old->pc9;
 704         old->pc10 = new->pc10 - old->pc10;
 705         old->pkg_temp_c = new->pkg_temp_c;
 706
 707         DELTA_WRAP32(new->energy_pkg, old->energy_pkg);
 708         DELTA_WRAP32(new->energy_cores, old->energy_cores);
 709         DELTA_WRAP32(new->energy_gfx, old->energy_gfx);
 710         DELTA_WRAP32(new->energy_dram, old->energy_dram);
 711         DELTA_WRAP32(new->rapl_pkg_perf_status, old->rapl_pkg_perf_status);
 712         DELTA_WRAP32(new->rapl_dram_perf_status, old->rapl_dram_perf_status);
 713 }
 714
 715 void
 716 delta_core(struct core_data *new, struct core_data *old)
 717 {
 718         old->c3 = new->c3 - old->c3;
 719         old->c6 = new->c6 - old->c6;
 720         old->c7 = new->c7 - old->c7;
 721         old->core_temp_c = new->core_temp_c;
 722 }
 723
 724 /*
 725  * old = new - old
 726  */
 727 void
 728 delta_thread(struct thread_data *new, struct thread_data *old,
 729         struct core_data *core_delta)
 730 {
 731         old->tsc = new->tsc - old->tsc;
 732
 733         /* check for TSC < 1 Mcycles over interval */
 734         if (old->tsc < (1000 * 1000))
 735                 errx(-3, "Insanely slow TSC rate, TSC stops in idle?\n"
 736                      "You can disable all c-states by booting with \"idle=poll\"\n"
 737                      "or just the deep ones with \"processor.max_cstate=1\"");
 738
 739         old->c1 = new->c1 - old->c1;
 740
 741         if (has_aperf) {
 742                 if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) {
 743                         old->aperf = new->aperf - old->aperf;
 744                         old->mperf = new->mperf - old->mperf;
 745                 } else {
 746
 747                         if (!aperf_mperf_unstable) {
 748                                 fprintf(stderr, "%s: APERF or MPERF went backwards *\n", progname);
 749                                 fprintf(stderr, "* Frequency results do not cover entire interval *\n");
 750                                 fprintf(stderr, "* fix this by running Linux-2.6.30 or later *\n");
 751
 752                                 aperf_mperf_unstable = 1;
 753                         }
 754                         /*
 755                          * mperf delta is likely a huge "positive" number
 756                          * can not use it for calculating c0 time
 757                          */
 758                         skip_c0 = 1;
 759                         skip_c1 = 1;
 760                 }
 761         }
 762
 763
 764         if (use_c1_residency_msr) {
 765                 /*
 766                  * Some models have a dedicated C1 residency MSR,
 767                  * which should be more accurate than the derivation below.
 768                  */
 769         } else {
 770                 /*
 771                  * As counter collection is not atomic,
 772                  * it is possible for mperf's non-halted cycles + idle states
 773                  * to exceed TSC's all cycles: show c1 = 0% in that case.
 774                  */
 775                 if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc)
 776                         old->c1 = 0;
 777                 else {
 778                         /* normal case, derive c1 */
 779                         old->c1 = old->tsc - old->mperf - core_delta->c3
 780                                 - core_delta->c6 - core_delta->c7;
 781                 }
 782         }
 783
 784         if (old->mperf == 0) {
 785                 if (debug > 1) fprintf(stderr, "cpu%d MPERF 0!\n", old->cpu_id);
 786                 old->mperf = 1; /* divide by 0 protection */
 787         }
 788
 789         old->extra_delta32 = new->extra_delta32 - old->extra_delta32;
 790         old->extra_delta32 &= 0xFFFFFFFF;
 791
 792         old->extra_delta64 = new->extra_delta64 - old->extra_delta64;
 793
 794         /*
 795          * Extra MSR is just a snapshot, simply copy latest w/o subtracting
 796          */
 797         old->extra_msr32 = new->extra_msr32;
 798         old->extra_msr64 = new->extra_msr64;
 799
 800         if (do_smi)
 801                 old->smi_count = new->smi_count - old->smi_count;
 802 }
 803
 804 int delta_cpu(struct thread_data *t, struct core_data *c,
 805         struct pkg_data *p, struct thread_data *t2,
 806         struct core_data *c2, struct pkg_data *p2)
 807 {
 808         /* calculate core delta only for 1st thread in core */
 809         if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE)
 810                 delta_core(c, c2);
 811
 812         /* always calculate thread delta */
 813         delta_thread(t, t2, c2);        /* c2 is core delta */
 814
 815         /* calculate package delta only for 1st core in package */
 816         if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)
 817                 delta_package(p, p2);
 818
 819         return 0;
 820 }
 821
 822 void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 823 {
 824         t->tsc = 0;
 825         t->aperf = 0;
 826         t->mperf = 0;
 827         t->c1 = 0;
 828
 829         t->smi_count = 0;
 830         t->extra_delta32 = 0;
 831         t->extra_delta64 = 0;
 832
 833         /* tells format_counters to dump all fields from this set */
 834         t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE;
 835
 836         c->c3 = 0;
 837         c->c6 = 0;
 838         c->c7 = 0;
 839         c->core_temp_c = 0;
 840
 841         p->pkg_wtd_core_c0 = 0;
 842         p->pkg_any_core_c0 = 0;
 843         p->pkg_any_gfxe_c0 = 0;
 844         p->pkg_both_core_gfxe_c0 = 0;
 845
 846         p->pc2 = 0;
 847         if (do_pc3)
 848                 p->pc3 = 0;
 849         if (do_pc6)
 850                 p->pc6 = 0;
 851         if (do_pc7)
 852                 p->pc7 = 0;
 853         p->pc8 = 0;
 854         p->pc9 = 0;
 855         p->pc10 = 0;
 856
 857         p->energy_pkg = 0;
 858         p->energy_dram = 0;
 859         p->energy_cores = 0;
 860         p->energy_gfx = 0;
 861         p->rapl_pkg_perf_status = 0;
 862         p->rapl_dram_perf_status = 0;
 863         p->pkg_temp_c = 0;
 864 }
 865 int sum_counters(struct thread_data *t, struct core_data *c,
 866         struct pkg_data *p)
 867 {
 868         average.threads.tsc += t->tsc;
 869         average.threads.aperf += t->aperf;
 870         average.threads.mperf += t->mperf;
 871         average.threads.c1 += t->c1;
 872
 873         average.threads.extra_delta32 += t->extra_delta32;
 874         average.threads.extra_delta64 += t->extra_delta64;
 875
 876         /* sum per-core values only for 1st thread in core */
 877         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
 878                 return 0;
 879
 880         average.cores.c3 += c->c3;
 881         average.cores.c6 += c->c6;
 882         average.cores.c7 += c->c7;
 883
 884         average.cores.core_temp_c = MAX(average.cores.core_temp_c, c->core_temp_c);
 885
 886         /* sum per-pkg values only for 1st core in pkg */
 887         if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
 888                 return 0;
 889
 890         if (do_skl_residency) {
 891                 average.packages.pkg_wtd_core_c0 += p->pkg_wtd_core_c0;
 892                 average.packages.pkg_any_core_c0 += p->pkg_any_core_c0;
 893                 average.packages.pkg_any_gfxe_c0 += p->pkg_any_gfxe_c0;
 894                 average.packages.pkg_both_core_gfxe_c0 += p->pkg_both_core_gfxe_c0;
 895         }
 896
 897         average.packages.pc2 += p->pc2;
 898         if (do_pc3)
 899                 average.packages.pc3 += p->pc3;
 900         if (do_pc6)
 901                 average.packages.pc6 += p->pc6;
 902         if (do_pc7)
 903                 average.packages.pc7 += p->pc7;
 904         average.packages.pc8 += p->pc8;
 905         average.packages.pc9 += p->pc9;
 906         average.packages.pc10 += p->pc10;
 907
 908         average.packages.energy_pkg += p->energy_pkg;
 909         average.packages.energy_dram += p->energy_dram;
 910         average.packages.energy_cores += p->energy_cores;
 911         average.packages.energy_gfx += p->energy_gfx;
 912
 913         average.packages.pkg_temp_c = MAX(average.packages.pkg_temp_c, p->pkg_temp_c);
 914
 915         average.packages.rapl_pkg_perf_status += p->rapl_pkg_perf_status;
 916         average.packages.rapl_dram_perf_status += p->rapl_dram_perf_status;
 917         return 0;
 918 }
 919 /*
 920  * sum the counters for all cpus in the system
 921  * compute the weighted average
 922  */
 923 void compute_average(struct thread_data *t, struct core_data *c,
 924         struct pkg_data *p)
 925 {
 926         clear_counters(&average.threads, &average.cores, &average.packages);
 927
 928         for_all_cpus(sum_counters, t, c, p);
 929
 930         average.threads.tsc /= topo.num_cpus;
 931         average.threads.aperf /= topo.num_cpus;
 932         average.threads.mperf /= topo.num_cpus;
 933         average.threads.c1 /= topo.num_cpus;
 934
 935         average.threads.extra_delta32 /= topo.num_cpus;
 936         average.threads.extra_delta32 &= 0xFFFFFFFF;
 937
 938         average.threads.extra_delta64 /= topo.num_cpus;
 939
 940         average.cores.c3 /= topo.num_cores;
 941         average.cores.c6 /= topo.num_cores;
 942         average.cores.c7 /= topo.num_cores;
 943
 944         if (do_skl_residency) {
 945                 average.packages.pkg_wtd_core_c0 /= topo.num_packages;
 946                 average.packages.pkg_any_core_c0 /= topo.num_packages;
 947                 average.packages.pkg_any_gfxe_c0 /= topo.num_packages;
 948                 average.packages.pkg_both_core_gfxe_c0 /= topo.num_packages;
 949         }
 950
 951         average.packages.pc2 /= topo.num_packages;
 952         if (do_pc3)
 953                 average.packages.pc3 /= topo.num_packages;
 954         if (do_pc6)
 955                 average.packages.pc6 /= topo.num_packages;
 956         if (do_pc7)
 957                 average.packages.pc7 /= topo.num_packages;
 958
 959         average.packages.pc8 /= topo.num_packages;
 960         average.packages.pc9 /= topo.num_packages;
 961         average.packages.pc10 /= topo.num_packages;
 962 }
 963
 964 static unsigned long long rdtsc(void)
 965 {
 966         unsigned int low, high;
 967
 968         asm volatile("rdtsc" : "=a" (low), "=d" (high));
 969
 970         return low | ((unsigned long long)high) << 32;
 971 }
 972
 973
 974 /*
 975  * get_counters(...)
 976  * migrate to cpu
 977  * acquire and record local counters for that cpu
 978  */
 979 int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 980 {
 981         int cpu = t->cpu_id;
 982         unsigned long long msr;
 983
 984         if (cpu_migrate(cpu)) {
 985                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
 986                 return -1;
 987         }
 988
 989         t->tsc = rdtsc();       /* we are running on local CPU of interest */
 990
 991         if (has_aperf) {
 992                 if (get_msr(cpu, MSR_IA32_APERF, &t->aperf))
 993                         return -3;
 994                 if (get_msr(cpu, MSR_IA32_MPERF, &t->mperf))
 995                         return -4;
 996                 t->aperf = t->aperf * aperf_mperf_multiplier;
 997                 t->mperf = t->mperf * aperf_mperf_multiplier;
 998         }
 999
1000         if (do_smi) {
1001                 if (get_msr(cpu, MSR_SMI_COUNT, &msr))
1002                         return -5;
1003                 t->smi_count = msr & 0xFFFFFFFF;
1004         }
1005         if (extra_delta_offset32) {
1006                 if (get_msr(cpu, extra_delta_offset32, &msr))
1007                         return -5;
1008                 t->extra_delta32 = msr & 0xFFFFFFFF;
1009         }
1010
1011         if (extra_delta_offset64)
1012                 if (get_msr(cpu, extra_delta_offset64, &t->extra_delta64))
1013                         return -5;
1014
1015         if (extra_msr_offset32) {
1016                 if (get_msr(cpu, extra_msr_offset32, &msr))
1017                         return -5;
1018                 t->extra_msr32 = msr & 0xFFFFFFFF;
1019         }
1020
1021         if (extra_msr_offset64)
1022                 if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64))
1023                         return -5;
1024
1025         if (use_c1_residency_msr) {
1026                 if (get_msr(cpu, MSR_CORE_C1_RES, &t->c1))
1027                         return -6;
1028         }
1029
1030         /* collect core counters only for 1st thread in core */
1031         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
1032                 return 0;
1033
1034         if (do_nhm_cstates && !do_slm_cstates && !do_knl_cstates) {
1035                 if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3))
1036                         return -6;
1037         }
1038
1039         if (do_nhm_cstates && !do_knl_cstates) {
1040                 if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6))
1041                         return -7;
1042         } else if (do_knl_cstates) {
1043                 if (get_msr(cpu, MSR_KNL_CORE_C6_RESIDENCY, &c->c6))
1044                         return -7;
1045         }
1046
1047         if (do_snb_cstates)
1048                 if (get_msr(cpu, MSR_CORE_C7_RESIDENCY, &c->c7))
1049                         return -8;
1050
1051         if (do_dts) {
1052                 if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
1053                         return -9;
1054                 c->core_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
1055         }
1056
1057
1058         /* collect package counters only for 1st core in package */
1059         if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
1060                 return 0;
1061
1062         if (do_skl_residency) {
1063                 if (get_msr(cpu, MSR_PKG_WEIGHTED_CORE_C0_RES, &p->pkg_wtd_core_c0))
1064                         return -10;
1065                 if (get_msr(cpu, MSR_PKG_ANY_CORE_C0_RES, &p->pkg_any_core_c0))
1066                         return -11;
1067                 if (get_msr(cpu, MSR_PKG_ANY_GFXE_C0_RES, &p->pkg_any_gfxe_c0))
1068                         return -12;
1069                 if (get_msr(cpu, MSR_PKG_BOTH_CORE_GFXE_C0_RES, &p->pkg_both_core_gfxe_c0))
1070                         return -13;
1071         }
1072         if (do_pc3)
1073                 if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3))
1074                         return -9;
1075         if (do_pc6)
1076                 if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6))
1077                         return -10;
1078         if (do_pc2)
1079                 if (get_msr(cpu, MSR_PKG_C2_RESIDENCY, &p->pc2))
1080                         return -11;
1081         if (do_pc7)
1082                 if (get_msr(cpu, MSR_PKG_C7_RESIDENCY, &p->pc7))
1083                         return -12;
1084         if (do_c8_c9_c10) {
1085                 if (get_msr(cpu, MSR_PKG_C8_RESIDENCY, &p->pc8))
1086                         return -13;
1087                 if (get_msr(cpu, MSR_PKG_C9_RESIDENCY, &p->pc9))
1088                         return -13;
1089                 if (get_msr(cpu, MSR_PKG_C10_RESIDENCY, &p->pc10))
1090                         return -13;
1091         }
1092         if (do_rapl & RAPL_PKG) {
1093                 if (get_msr(cpu, MSR_PKG_ENERGY_STATUS, &msr))
1094                         return -13;
1095                 p->energy_pkg = msr & 0xFFFFFFFF;
1096         }
1097         if (do_rapl & RAPL_CORES) {
1098                 if (get_msr(cpu, MSR_PP0_ENERGY_STATUS, &msr))
1099                         return -14;
1100                 p->energy_cores = msr & 0xFFFFFFFF;
1101         }
1102         if (do_rapl & RAPL_DRAM) {
1103                 if (get_msr(cpu, MSR_DRAM_ENERGY_STATUS, &msr))
1104                         return -15;
1105                 p->energy_dram = msr & 0xFFFFFFFF;
1106         }
1107         if (do_rapl & RAPL_GFX) {
1108                 if (get_msr(cpu, MSR_PP1_ENERGY_STATUS, &msr))
1109                         return -16;
1110                 p->energy_gfx = msr & 0xFFFFFFFF;
1111         }
1112         if (do_rapl & RAPL_PKG_PERF_STATUS) {
1113                 if (get_msr(cpu, MSR_PKG_PERF_STATUS, &msr))
1114                         return -16;
1115                 p->rapl_pkg_perf_status = msr & 0xFFFFFFFF;
1116         }
1117         if (do_rapl & RAPL_DRAM_PERF_STATUS) {
1118                 if (get_msr(cpu, MSR_DRAM_PERF_STATUS, &msr))
1119                         return -16;
1120                 p->rapl_dram_perf_status = msr & 0xFFFFFFFF;
1121         }
1122         if (do_ptm) {
1123                 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
1124                         return -17;
1125                 p->pkg_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
1126         }
1127         return 0;
1128 }
1129
1130 /*
1131  * MSR_PKG_CST_CONFIG_CONTROL decoding for pkg_cstate_limit:
1132  * If you change the values, note they are used both in comparisons
1133  * (>= PCL__7) and to index pkg_cstate_limit_strings[].
1134  */
1135
1136 #define PCLUKN 0 /* Unknown */
1137 #define PCLRSV 1 /* Reserved */
1138 #define PCL__0 2 /* PC0 */
1139 #define PCL__1 3 /* PC1 */
1140 #define PCL__2 4 /* PC2 */
1141 #define PCL__3 5 /* PC3 */
1142 #define PCL__4 6 /* PC4 */
1143 #define PCL__6 7 /* PC6 */
1144 #define PCL_6N 8 /* PC6 No Retention */
1145 #define PCL_6R 9 /* PC6 Retention */
1146 #define PCL__7 10 /* PC7 */
1147 #define PCL_7S 11 /* PC7 Shrink */
1148 #define PCL__8 12 /* PC8 */
1149 #define PCL__9 13 /* PC9 */
1150 #define PCLUNL 14 /* Unlimited */
1151
1152 int pkg_cstate_limit = PCLUKN;
1153 char *pkg_cstate_limit_strings[] = { "reserved", "unknown", "pc0", "pc1", "pc2",
1154         "pc3", "pc4", "pc6", "pc6n", "pc6r", "pc7", "pc7s", "pc8", "pc9", "unlimited"};
1155
1156 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};
1157 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};
1158 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};
1159 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};
1160 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};
1161 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};
1162
1163
1164 static void
1165 calculate_tsc_tweak()
1166 {
1167         tsc_tweak = base_hz / tsc_hz;
1168 }
1169
1170 static void
1171 dump_nhm_platform_info(void)
1172 {
1173         unsigned long long msr;
1174         unsigned int ratio;
1175
1176         get_msr(base_cpu, MSR_PLATFORM_INFO, &msr);
1177
1178         fprintf(stderr, "cpu%d: MSR_PLATFORM_INFO: 0x%08llx\n", base_cpu, msr);
1179
1180         ratio = (msr >> 40) & 0xFF;
1181         fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency frequency\n",
1182                 ratio, bclk, ratio * bclk);
1183
1184         ratio = (msr >> 8) & 0xFF;
1185         fprintf(stderr, "%d * %.0f = %.0f MHz base frequency\n",
1186                 ratio, bclk, ratio * bclk);
1187
1188         get_msr(base_cpu, MSR_IA32_POWER_CTL, &msr);
1189         fprintf(stderr, "cpu%d: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n",
1190                 base_cpu, msr, msr & 0x2 ? "EN" : "DIS");
1191
1192         return;
1193 }
1194
1195 static void
1196 dump_hsw_turbo_ratio_limits(void)
1197 {
1198         unsigned long long msr;
1199         unsigned int ratio;
1200
1201         get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT2, &msr);
1202
1203         fprintf(stderr, "cpu%d: MSR_TURBO_RATIO_LIMIT2: 0x%08llx\n", base_cpu, msr);
1204
1205         ratio = (msr >> 8) & 0xFF;
1206         if (ratio)
1207                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 18 active cores\n",
1208                         ratio, bclk, ratio * bclk);
1209
1210         ratio = (msr >> 0) & 0xFF;
1211         if (ratio)
1212                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 17 active cores\n",
1213                         ratio, bclk, ratio * bclk);
1214         return;
1215 }
1216
1217 static void
1218 dump_ivt_turbo_ratio_limits(void)
1219 {
1220         unsigned long long msr;
1221         unsigned int ratio;
1222
1223         get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT1, &msr);
1224
1225         fprintf(stderr, "cpu%d: MSR_TURBO_RATIO_LIMIT1: 0x%08llx\n", base_cpu, msr);
1226
1227         ratio = (msr >> 56) & 0xFF;
1228         if (ratio)
1229                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 16 active cores\n",
1230                         ratio, bclk, ratio * bclk);
1231
1232         ratio = (msr >> 48) & 0xFF;
1233         if (ratio)
1234                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 15 active cores\n",
1235                         ratio, bclk, ratio * bclk);
1236
1237         ratio = (msr >> 40) & 0xFF;
1238         if (ratio)
1239                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 14 active cores\n",
1240                         ratio, bclk, ratio * bclk);
1241
1242         ratio = (msr >> 32) & 0xFF;
1243         if (ratio)
1244                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 13 active cores\n",
1245                         ratio, bclk, ratio * bclk);
1246
1247         ratio = (msr >> 24) & 0xFF;
1248         if (ratio)
1249                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 12 active cores\n",
1250                         ratio, bclk, ratio * bclk);
1251
1252         ratio = (msr >> 16) & 0xFF;
1253         if (ratio)
1254                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 11 active cores\n",
1255                         ratio, bclk, ratio * bclk);
1256
1257         ratio = (msr >> 8) & 0xFF;
1258         if (ratio)
1259                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 10 active cores\n",
1260                         ratio, bclk, ratio * bclk);
1261
1262         ratio = (msr >> 0) & 0xFF;
1263         if (ratio)
1264                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n",
1265                         ratio, bclk, ratio * bclk);
1266         return;
1267 }
1268
1269 static void
1270 dump_nhm_turbo_ratio_limits(void)
1271 {
1272         unsigned long long msr;
1273         unsigned int ratio;
1274
1275         get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT, &msr);
1276
1277         fprintf(stderr, "cpu%d: MSR_TURBO_RATIO_LIMIT: 0x%08llx\n", base_cpu, msr);
1278
1279         ratio = (msr >> 56) & 0xFF;
1280         if (ratio)
1281                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 8 active cores\n",
1282                         ratio, bclk, ratio * bclk);
1283
1284         ratio = (msr >> 48) & 0xFF;
1285         if (ratio)
1286                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 7 active cores\n",
1287                         ratio, bclk, ratio * bclk);
1288
1289         ratio = (msr >> 40) & 0xFF;
1290         if (ratio)
1291                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 6 active cores\n",
1292                         ratio, bclk, ratio * bclk);
1293
1294         ratio = (msr >> 32) & 0xFF;
1295         if (ratio)
1296                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 5 active cores\n",
1297                         ratio, bclk, ratio * bclk);
1298
1299         ratio = (msr >> 24) & 0xFF;
1300         if (ratio)
1301                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n",
1302                         ratio, bclk, ratio * bclk);
1303
1304         ratio = (msr >> 16) & 0xFF;
1305         if (ratio)
1306                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 3 active cores\n",
1307                         ratio, bclk, ratio * bclk);
1308
1309         ratio = (msr >> 8) & 0xFF;
1310         if (ratio)
1311                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 2 active cores\n",
1312                         ratio, bclk, ratio * bclk);
1313
1314         ratio = (msr >> 0) & 0xFF;
1315         if (ratio)
1316                 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n",
1317                         ratio, bclk, ratio * bclk);
1318         return;
1319 }
1320
1321 static void
1322 dump_knl_turbo_ratio_limits(void)
1323 {
1324         int cores;
1325         unsigned int ratio;
1326         unsigned long long msr;
1327         int delta_cores;
1328         int delta_ratio;
1329         int i;
1330
1331         get_msr(base_cpu, MSR_NHM_TURBO_RATIO_LIMIT, &msr);
1332
1333         fprintf(stderr, "cpu%d: MSR_NHM_TURBO_RATIO_LIMIT: 0x%08llx\n",
1334                 base_cpu, msr);
1335
1336         /**
1337          * Turbo encoding in KNL is as follows:
1338          * [7:0] -- Base value of number of active cores of bucket 1.
1339          * [15:8] -- Base value of freq ratio of bucket 1.
1340          * [20:16] -- +ve delta of number of active cores of bucket 2.
1341          * i.e. active cores of bucket 2 =
1342          * active cores of bucket 1 + delta
1343          * [23:21] -- Negative delta of freq ratio of bucket 2.
1344          * i.e. freq ratio of bucket 2 =
1345          * freq ratio of bucket 1 - delta
1346          * [28:24]-- +ve delta of number of active cores of bucket 3.
1347          * [31:29]-- -ve delta of freq ratio of bucket 3.
1348          * [36:32]-- +ve delta of number of active cores of bucket 4.
1349          * [39:37]-- -ve delta of freq ratio of bucket 4.
1350          * [44:40]-- +ve delta of number of active cores of bucket 5.
1351          * [47:45]-- -ve delta of freq ratio of bucket 5.
1352          * [52:48]-- +ve delta of number of active cores of bucket 6.
1353          * [55:53]-- -ve delta of freq ratio of bucket 6.
1354          * [60:56]-- +ve delta of number of active cores of bucket 7.
1355          * [63:61]-- -ve delta of freq ratio of bucket 7.
1356          */
1357         cores = msr & 0xFF;
1358         ratio = (msr >> 8) && 0xFF;
1359         if (ratio > 0)
1360                 fprintf(stderr,
1361                         "%d * %.0f = %.0f MHz max turbo %d active cores\n",
1362                         ratio, bclk, ratio * bclk, cores);
1363
1364         for (i = 16; i < 64; i = i + 8) {
1365                 delta_cores = (msr >> i) & 0x1F;
1366                 delta_ratio = (msr >> (i + 5)) && 0x7;
1367                 if (!delta_cores || !delta_ratio)
1368                         return;
1369                 cores = cores + delta_cores;
1370                 ratio = ratio - delta_ratio;
1371
1372                 /** -ve ratios will make successive ratio calculations
1373                  * negative. Hence return instead of carrying on.
1374                  */
1375                 if (ratio > 0)
1376                         fprintf(stderr,
1377                                 "%d * %.0f = %.0f MHz max turbo %d active cores\n",
1378                                 ratio, bclk, ratio * bclk, cores);
1379         }
1380 }
1381
1382 static void
1383 dump_nhm_cst_cfg(void)
1384 {
1385         unsigned long long msr;
1386
1387         get_msr(base_cpu, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);
1388
1389 #define SNB_C1_AUTO_UNDEMOTE              (1UL << 27)
1390 #define SNB_C3_AUTO_UNDEMOTE              (1UL << 28)
1391
1392         fprintf(stderr, "cpu%d: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", base_cpu, msr);
1393
1394         fprintf(stderr, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: %s)\n",
1395                 (msr & SNB_C3_AUTO_UNDEMOTE) ? "UNdemote-C3, " : "",
1396                 (msr & SNB_C1_AUTO_UNDEMOTE) ? "UNdemote-C1, " : "",
1397                 (msr & NHM_C3_AUTO_DEMOTE) ? "demote-C3, " : "",
1398                 (msr & NHM_C1_AUTO_DEMOTE) ? "demote-C1, " : "",
1399                 (msr & (1 << 15)) ? "" : "UN",
1400                 (unsigned int)msr & 7,
1401                 pkg_cstate_limit_strings[pkg_cstate_limit]);
1402         return;
1403 }
1404
1405 static void
1406 dump_config_tdp(void)
1407 {
1408         unsigned long long msr;
1409
1410         get_msr(base_cpu, MSR_CONFIG_TDP_NOMINAL, &msr);
1411         fprintf(stderr, "cpu%d: MSR_CONFIG_TDP_NOMINAL: 0x%08llx", base_cpu, msr);
1412         fprintf(stderr, " (base_ratio=%d)\n", (unsigned int)msr & 0xEF);
1413
1414         get_msr(base_cpu, MSR_CONFIG_TDP_LEVEL_1, &msr);
1415         fprintf(stderr, "cpu%d: MSR_CONFIG_TDP_LEVEL_1: 0x%08llx (", base_cpu, msr);
1416         if (msr) {
1417                 fprintf(stderr, "PKG_MIN_PWR_LVL1=%d ", (unsigned int)(msr >> 48) & 0xEFFF);
1418                 fprintf(stderr, "PKG_MAX_PWR_LVL1=%d ", (unsigned int)(msr >> 32) & 0xEFFF);
1419                 fprintf(stderr, "LVL1_RATIO=%d ", (unsigned int)(msr >> 16) & 0xEF);
1420                 fprintf(stderr, "PKG_TDP_LVL1=%d", (unsigned int)(msr) & 0xEFFF);
1421         }
1422         fprintf(stderr, ")\n");
1423
1424         get_msr(base_cpu, MSR_CONFIG_TDP_LEVEL_2, &msr);
1425         fprintf(stderr, "cpu%d: MSR_CONFIG_TDP_LEVEL_2: 0x%08llx (", base_cpu, msr);
1426         if (msr) {
1427                 fprintf(stderr, "PKG_MIN_PWR_LVL2=%d ", (unsigned int)(msr >> 48) & 0xEFFF);
1428                 fprintf(stderr, "PKG_MAX_PWR_LVL2=%d ", (unsigned int)(msr >> 32) & 0xEFFF);
1429                 fprintf(stderr, "LVL2_RATIO=%d ", (unsigned int)(msr >> 16) & 0xEF);
1430                 fprintf(stderr, "PKG_TDP_LVL2=%d", (unsigned int)(msr) & 0xEFFF);
1431         }
1432         fprintf(stderr, ")\n");
1433
1434         get_msr(base_cpu, MSR_CONFIG_TDP_CONTROL, &msr);
1435         fprintf(stderr, "cpu%d: MSR_CONFIG_TDP_CONTROL: 0x%08llx (", base_cpu, msr);
1436         if ((msr) & 0x3)
1437                 fprintf(stderr, "TDP_LEVEL=%d ", (unsigned int)(msr) & 0x3);
1438         fprintf(stderr, " lock=%d", (unsigned int)(msr >> 31) & 1);
1439         fprintf(stderr, ")\n");
1440
1441         get_msr(base_cpu, MSR_TURBO_ACTIVATION_RATIO, &msr);
1442         fprintf(stderr, "cpu%d: MSR_TURBO_ACTIVATION_RATIO: 0x%08llx (", base_cpu, msr);
1443         fprintf(stderr, "MAX_NON_TURBO_RATIO=%d", (unsigned int)(msr) & 0x7F);
1444         fprintf(stderr, " lock=%d", (unsigned int)(msr >> 31) & 1);
1445         fprintf(stderr, ")\n");
1446 }
1447
1448 void free_all_buffers(void)
1449 {
1450         CPU_FREE(cpu_present_set);
1451         cpu_present_set = NULL;
1452         cpu_present_set = 0;
1453
1454         CPU_FREE(cpu_affinity_set);
1455         cpu_affinity_set = NULL;
1456         cpu_affinity_setsize = 0;
1457
1458         free(thread_even);
1459         free(core_even);
1460         free(package_even);
1461
1462         thread_even = NULL;
1463         core_even = NULL;
1464         package_even = NULL;
1465
1466         free(thread_odd);
1467         free(core_odd);
1468         free(package_odd);
1469
1470         thread_odd = NULL;
1471         core_odd = NULL;
1472         package_odd = NULL;
1473
1474         free(output_buffer);
1475         output_buffer = NULL;
1476         outp = NULL;
1477 }
1478
1479 /*
1480  * Open a file, and exit on failure
1481  */
1482 FILE *fopen_or_die(const char *path, const char *mode)
1483 {
1484         FILE *filep = fopen(path, "r");
1485         if (!filep)
1486                 err(1, "%s: open failed", path);
1487         return filep;
1488 }
1489
1490 /*
1491  * Parse a file containing a single int.
1492  */
1493 int parse_int_file(const char *fmt, ...)
1494 {
1495         va_list args;
1496         char path[PATH_MAX];
1497         FILE *filep;
1498         int value;
1499
1500         va_start(args, fmt);
1501         vsnprintf(path, sizeof(path), fmt, args);
1502         va_end(args);
1503         filep = fopen_or_die(path, "r");
1504         if (fscanf(filep, "%d", &value) != 1)
1505                 err(1, "%s: failed to parse number from file", path);
1506         fclose(filep);
1507         return value;
1508 }
1509
1510 /*
1511  * get_cpu_position_in_core(cpu)
1512  * return the position of the CPU among its HT siblings in the core
1513  * return -1 if the sibling is not in list
1514  */
1515 int get_cpu_position_in_core(int cpu)
1516 {
1517         char path[64];
1518         FILE *filep;
1519         int this_cpu;
1520         char character;
1521         int i;
1522
1523         sprintf(path,
1524                 "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list",
1525                 cpu);
1526         filep = fopen(path, "r");
1527         if (filep == NULL) {
1528                 perror(path);
1529                 exit(1);
1530         }
1531
1532         for (i = 0; i < topo.num_threads_per_core; i++) {
1533                 fscanf(filep, "%d", &this_cpu);
1534                 if (this_cpu == cpu) {
1535                         fclose(filep);
1536                         return i;
1537                 }
1538
1539                 /* Account for no separator after last thread*/
1540                 if (i != (topo.num_threads_per_core - 1))
1541                         fscanf(filep, "%c", &character);
1542         }
1543
1544         fclose(filep);
1545         return -1;
1546 }
1547
1548 /*
1549  * cpu_is_first_core_in_package(cpu)
1550  * return 1 if given CPU is 1st core in package
1551  */
1552 int cpu_is_first_core_in_package(int cpu)
1553 {
1554         return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu);
1555 }
1556
1557 int get_physical_package_id(int cpu)
1558 {
1559         return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu);
1560 }
1561
1562 int get_core_id(int cpu)
1563 {
1564         return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_id", cpu);
1565 }
1566
1567 int get_num_ht_siblings(int cpu)
1568 {
1569         char path[80];
1570         FILE *filep;
1571         int sib1;
1572         int matches = 0;
1573         char character;
1574         char str[100];
1575         char *ch;
1576
1577         sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu);
1578         filep = fopen_or_die(path, "r");
1579
1580         /*
1581          * file format:
1582          * A ',' separated or '-' separated set of numbers
1583          * (eg 1-2 or 1,3,4,5)
1584          */
1585         fscanf(filep, "%d%c\n", &sib1, &character);
1586         fseek(filep, 0, SEEK_SET);
1587         fgets(str, 100, filep);
1588         ch = strchr(str, character);
1589         while (ch != NULL) {
1590                 matches++;
1591                 ch = strchr(ch+1, character);
1592         }
1593
1594         fclose(filep);
1595         return matches+1;
1596 }
1597
1598 /*
1599  * run func(thread, core, package) in topology order
1600  * skip non-present cpus
1601  */
1602
1603 int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *,
1604         struct pkg_data *, struct thread_data *, struct core_data *,
1605         struct pkg_data *), struct thread_data *thread_base,
1606         struct core_data *core_base, struct pkg_data *pkg_base,
1607         struct thread_data *thread_base2, struct core_data *core_base2,
1608         struct pkg_data *pkg_base2)
1609 {
1610         int retval, pkg_no, core_no, thread_no;
1611
1612         for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
1613                 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
1614                         for (thread_no = 0; thread_no <
1615                                 topo.num_threads_per_core; ++thread_no) {
1616                                 struct thread_data *t, *t2;
1617                                 struct core_data *c, *c2;
1618                                 struct pkg_data *p, *p2;
1619
1620                                 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
1621
1622                                 if (cpu_is_not_present(t->cpu_id))
1623                                         continue;
1624
1625                                 t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no);
1626
1627                                 c = GET_CORE(core_base, core_no, pkg_no);
1628                                 c2 = GET_CORE(core_base2, core_no, pkg_no);
1629
1630                                 p = GET_PKG(pkg_base, pkg_no);
1631                                 p2 = GET_PKG(pkg_base2, pkg_no);
1632
1633                                 retval = func(t, c, p, t2, c2, p2);
1634                                 if (retval)
1635                                         return retval;
1636                         }
1637                 }
1638         }
1639         return 0;
1640 }
1641
1642 /*
1643  * run func(cpu) on every cpu in /proc/stat
1644  * return max_cpu number
1645  */
1646 int for_all_proc_cpus(int (func)(int))
1647 {
1648         FILE *fp;
1649         int cpu_num;
1650         int retval;
1651
1652         fp = fopen_or_die(proc_stat, "r");
1653
1654         retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n");
1655         if (retval != 0)
1656                 err(1, "%s: failed to parse format", proc_stat);
1657
1658         while (1) {
1659                 retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num);
1660                 if (retval != 1)
1661                         break;
1662
1663                 retval = func(cpu_num);
1664                 if (retval) {
1665                         fclose(fp);
1666                         return(retval);
1667                 }
1668         }
1669         fclose(fp);
1670         return 0;
1671 }
1672
1673 void re_initialize(void)
1674 {
1675         free_all_buffers();
1676         setup_all_buffers();
1677         printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus);
1678 }
1679
1680
1681 /*
1682  * count_cpus()
1683  * remember the last one seen, it will be the max
1684  */
1685 int count_cpus(int cpu)
1686 {
1687         if (topo.max_cpu_num < cpu)
1688                 topo.max_cpu_num = cpu;
1689
1690         topo.num_cpus += 1;
1691         return 0;
1692 }
1693 int mark_cpu_present(int cpu)
1694 {
1695         CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set);
1696         return 0;
1697 }
1698
1699 void turbostat_loop()
1700 {
1701         int retval;
1702         int restarted = 0;
1703
1704 restart:
1705         restarted++;
1706
1707         retval = for_all_cpus(get_counters, EVEN_COUNTERS);
1708         if (retval < -1) {
1709                 exit(retval);
1710         } else if (retval == -1) {
1711                 if (restarted > 1) {
1712                         exit(retval);
1713                 }
1714                 re_initialize();
1715                 goto restart;
1716         }
1717         restarted = 0;
1718         gettimeofday(&tv_even, (struct timezone *)NULL);
1719
1720         while (1) {
1721                 if (for_all_proc_cpus(cpu_is_not_present)) {
1722                         re_initialize();
1723                         goto restart;
1724                 }
1725                 sleep(interval_sec);
1726                 retval = for_all_cpus(get_counters, ODD_COUNTERS);
1727                 if (retval < -1) {
1728                         exit(retval);
1729                 } else if (retval == -1) {
1730                         re_initialize();
1731                         goto restart;
1732                 }
1733                 gettimeofday(&tv_odd, (struct timezone *)NULL);
1734                 timersub(&tv_odd, &tv_even, &tv_delta);
1735                 for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
1736                 compute_average(EVEN_COUNTERS);
1737                 format_all_counters(EVEN_COUNTERS);
1738                 flush_stdout();
1739                 sleep(interval_sec);
1740                 retval = for_all_cpus(get_counters, EVEN_COUNTERS);
1741                 if (retval < -1) {
1742                         exit(retval);
1743                 } else if (retval == -1) {
1744                         re_initialize();
1745                         goto restart;
1746                 }
1747                 gettimeofday(&tv_even, (struct timezone *)NULL);
1748                 timersub(&tv_even, &tv_odd, &tv_delta);
1749                 for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS);
1750                 compute_average(ODD_COUNTERS);
1751                 format_all_counters(ODD_COUNTERS);
1752                 flush_stdout();
1753         }
1754 }
1755
1756 void check_dev_msr()
1757 {
1758         struct stat sb;
1759         char pathname[32];
1760
1761         sprintf(pathname, "/dev/cpu/%d/msr", base_cpu);
1762         if (stat(pathname, &sb))
1763                 if (system("/sbin/modprobe msr > /dev/null 2>&1"))
1764                         err(-5, "no /dev/cpu/0/msr, Try \"# modprobe msr\" ");
1765 }
1766
1767 void check_permissions()
1768 {
1769         struct __user_cap_header_struct cap_header_data;
1770         cap_user_header_t cap_header = &cap_header_data;
1771         struct __user_cap_data_struct cap_data_data;
1772         cap_user_data_t cap_data = &cap_data_data;
1773         extern int capget(cap_user_header_t hdrp, cap_user_data_t datap);
1774         int do_exit = 0;
1775         char pathname[32];
1776
1777         /* check for CAP_SYS_RAWIO */
1778         cap_header->pid = getpid();
1779         cap_header->version = _LINUX_CAPABILITY_VERSION;
1780         if (capget(cap_header, cap_data) < 0)
1781                 err(-6, "capget(2) failed");
1782
1783         if ((cap_data->effective & (1 << CAP_SYS_RAWIO)) == 0) {
1784                 do_exit++;
1785                 warnx("capget(CAP_SYS_RAWIO) failed,"
1786                         " try \"# setcap cap_sys_rawio=ep %s\"", progname);
1787         }
1788
1789         /* test file permissions */
1790         sprintf(pathname, "/dev/cpu/%d/msr", base_cpu);
1791         if (euidaccess(pathname, R_OK)) {
1792                 do_exit++;
1793                 warn("/dev/cpu/0/msr open failed, try chown or chmod +r /dev/cpu/*/msr");
1794         }
1795
1796         /* if all else fails, thell them to be root */
1797         if (do_exit)
1798                 if (getuid() != 0)
1799                         warnx("... or simply run as root");
1800
1801         if (do_exit)
1802                 exit(-6);
1803 }
1804
1805 /*
1806  * NHM adds support for additional MSRs:
1807  *
1808  * MSR_SMI_COUNT                   0x00000034
1809  *
1810  * MSR_PLATFORM_INFO               0x000000ce
1811  * MSR_NHM_SNB_PKG_CST_CFG_CTL     0x000000e2
1812  *
1813  * MSR_PKG_C3_RESIDENCY            0x000003f8
1814  * MSR_PKG_C6_RESIDENCY            0x000003f9
1815  * MSR_CORE_C3_RESIDENCY           0x000003fc
1816  * MSR_CORE_C6_RESIDENCY           0x000003fd
1817  *
1818  * Side effect:
1819  * sets global pkg_cstate_limit to decode MSR_NHM_SNB_PKG_CST_CFG_CTL
1820  */
1821 int probe_nhm_msrs(unsigned int family, unsigned int model)
1822 {
1823         unsigned long long msr;
1824         unsigned int base_ratio;
1825         int *pkg_cstate_limits;
1826
1827         if (!genuine_intel)
1828                 return 0;
1829
1830         if (family != 6)
1831                 return 0;
1832
1833         bclk = discover_bclk(family, model);
1834
1835         switch (model) {
1836         case 0x1A:      /* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */
1837         case 0x1E:      /* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */
1838         case 0x1F:      /* Core i7 and i5 Processor - Nehalem */
1839         case 0x25:      /* Westmere Client - Clarkdale, Arrandale */
1840         case 0x2C:      /* Westmere EP - Gulftown */
1841         case 0x2E:      /* Nehalem-EX Xeon - Beckton */
1842         case 0x2F:      /* Westmere-EX Xeon - Eagleton */
1843                 pkg_cstate_limits = nhm_pkg_cstate_limits;
1844                 break;
1845         case 0x2A:      /* SNB */
1846         case 0x2D:      /* SNB Xeon */
1847         case 0x3A:      /* IVB */
1848         case 0x3E:      /* IVB Xeon */
1849                 pkg_cstate_limits = snb_pkg_cstate_limits;
1850                 break;
1851         case 0x3C:      /* HSW */
1852         case 0x3F:      /* HSX */
1853         case 0x45:      /* HSW */
1854         case 0x46:      /* HSW */
1855         case 0x3D:      /* BDW */
1856         case 0x47:      /* BDW */
1857         case 0x4F:      /* BDX */
1858         case 0x56:      /* BDX-DE */
1859         case 0x4E:      /* SKL */
1860         case 0x5E:      /* SKL */
1861                 pkg_cstate_limits = hsw_pkg_cstate_limits;
1862                 break;
1863         case 0x37:      /* BYT */
1864         case 0x4D:      /* AVN */
1865                 pkg_cstate_limits = slv_pkg_cstate_limits;
1866                 break;
1867         case 0x4C:      /* AMT */
1868                 pkg_cstate_limits = amt_pkg_cstate_limits;
1869                 break;
1870         case 0x57:      /* PHI */
1871                 pkg_cstate_limits = phi_pkg_cstate_limits;
1872                 break;
1873         default:
1874                 return 0;
1875         }
1876         get_msr(base_cpu, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);
1877         pkg_cstate_limit = pkg_cstate_limits[msr & 0xF];
1878
1879         get_msr(base_cpu, MSR_PLATFORM_INFO, &msr);
1880         base_ratio = (msr >> 8) & 0xFF;
1881
1882         base_hz = base_ratio * bclk * 1000000;
1883         has_base_hz = 1;
1884         return 1;
1885 }
1886 int has_nhm_turbo_ratio_limit(unsigned int family, unsigned int model)
1887 {
1888         switch (model) {
1889         /* Nehalem compatible, but do not include turbo-ratio limit support */
1890         case 0x2E:      /* Nehalem-EX Xeon - Beckton */
1891         case 0x2F:      /* Westmere-EX Xeon - Eagleton */
1892                 return 0;
1893         default:
1894                 return 1;
1895         }
1896 }
1897 int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model)
1898 {
1899         if (!genuine_intel)
1900                 return 0;
1901
1902         if (family != 6)
1903                 return 0;
1904
1905         switch (model) {
1906         case 0x3E:      /* IVB Xeon */
1907         case 0x3F:      /* HSW Xeon */
1908                 return 1;
1909         default:
1910                 return 0;
1911         }
1912 }
1913 int has_hsw_turbo_ratio_limit(unsigned int family, unsigned int model)
1914 {
1915         if (!genuine_intel)
1916                 return 0;
1917
1918         if (family != 6)
1919                 return 0;
1920
1921         switch (model) {
1922         case 0x3F:      /* HSW Xeon */
1923                 return 1;
1924         default:
1925                 return 0;
1926         }
1927 }
1928
1929 int has_knl_turbo_ratio_limit(unsigned int family, unsigned int model)
1930 {
1931         if (!genuine_intel)
1932                 return 0;
1933
1934         if (family != 6)
1935                 return 0;
1936
1937         switch (model) {
1938         case 0x57:      /* Knights Landing */
1939                 return 1;
1940         default:
1941                 return 0;
1942         }
1943 }
1944 int has_config_tdp(unsigned int family, unsigned int model)
1945 {
1946         if (!genuine_intel)
1947                 return 0;
1948
1949         if (family != 6)
1950                 return 0;
1951
1952         switch (model) {
1953         case 0x3A:      /* IVB */
1954         case 0x3C:      /* HSW */
1955         case 0x3F:      /* HSX */
1956         case 0x45:      /* HSW */
1957         case 0x46:      /* HSW */
1958         case 0x3D:      /* BDW */
1959         case 0x47:      /* BDW */
1960         case 0x4F:      /* BDX */
1961         case 0x56:      /* BDX-DE */
1962         case 0x4E:      /* SKL */
1963         case 0x5E:      /* SKL */
1964
1965         case 0x57:      /* Knights Landing */
1966                 return 1;
1967         default:
1968                 return 0;
1969         }
1970 }
1971
1972 static void
1973 dump_cstate_pstate_config_info(family, model)
1974 {
1975         if (!do_nhm_platform_info)
1976                 return;
1977
1978         dump_nhm_platform_info();
1979
1980         if (has_hsw_turbo_ratio_limit(family, model))
1981                 dump_hsw_turbo_ratio_limits();
1982
1983         if (has_ivt_turbo_ratio_limit(family, model))
1984                 dump_ivt_turbo_ratio_limits();
1985
1986         if (has_nhm_turbo_ratio_limit(family, model))
1987                 dump_nhm_turbo_ratio_limits();
1988
1989         if (has_knl_turbo_ratio_limit(family, model))
1990                 dump_knl_turbo_ratio_limits();
1991
1992         if (has_config_tdp(family, model))
1993                 dump_config_tdp();
1994
1995         dump_nhm_cst_cfg();
1996 }
1997
1998
1999 /*
2000  * print_epb()
2001  * Decode the ENERGY_PERF_BIAS MSR
2002  */
2003 int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2004 {
2005         unsigned long long msr;
2006         char *epb_string;
2007         int cpu;
2008
2009         if (!has_epb)
2010                 return 0;
2011
2012         cpu = t->cpu_id;
2013
2014         /* EPB is per-package */
2015         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
2016                 return 0;
2017
2018         if (cpu_migrate(cpu)) {
2019                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
2020                 return -1;
2021         }
2022
2023         if (get_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, &msr))
2024                 return 0;
2025
2026         switch (msr & 0xF) {
2027         case ENERGY_PERF_BIAS_PERFORMANCE:
2028                 epb_string = "performance";
2029                 break;
2030         case ENERGY_PERF_BIAS_NORMAL:
2031                 epb_string = "balanced";
2032                 break;
2033         case ENERGY_PERF_BIAS_POWERSAVE:
2034                 epb_string = "powersave";
2035                 break;
2036         default:
2037                 epb_string = "custom";
2038                 break;
2039         }
2040         fprintf(stderr, "cpu%d: MSR_IA32_ENERGY_PERF_BIAS: 0x%08llx (%s)\n", cpu, msr, epb_string);
2041
2042         return 0;
2043 }
2044
2045 /*
2046  * print_perf_limit()
2047  */
2048 int print_perf_limit(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2049 {
2050         unsigned long long msr;
2051         int cpu;
2052
2053         cpu = t->cpu_id;
2054
2055         /* per-package */
2056         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
2057                 return 0;
2058
2059         if (cpu_migrate(cpu)) {
2060                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
2061                 return -1;
2062         }
2063
2064         if (do_core_perf_limit_reasons) {
2065                 get_msr(cpu, MSR_CORE_PERF_LIMIT_REASONS, &msr);
2066                 fprintf(stderr, "cpu%d: MSR_CORE_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
2067                 fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)",
2068                         (msr & 1 << 15) ? "bit15, " : "",
2069                         (msr & 1 << 14) ? "bit14, " : "",
2070                         (msr & 1 << 13) ? "Transitions, " : "",
2071                         (msr & 1 << 12) ? "MultiCoreTurbo, " : "",
2072                         (msr & 1 << 11) ? "PkgPwrL2, " : "",
2073                         (msr & 1 << 10) ? "PkgPwrL1, " : "",
2074                         (msr & 1 << 9) ? "CorePwr, " : "",
2075                         (msr & 1 << 8) ? "Amps, " : "",
2076                         (msr & 1 << 6) ? "VR-Therm, " : "",
2077                         (msr & 1 << 5) ? "Auto-HWP, " : "",
2078                         (msr & 1 << 4) ? "Graphics, " : "",
2079                         (msr & 1 << 2) ? "bit2, " : "",
2080                         (msr & 1 << 1) ? "ThermStatus, " : "",
2081                         (msr & 1 << 0) ? "PROCHOT, " : "");
2082                 fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)\n",
2083                         (msr & 1 << 31) ? "bit31, " : "",
2084                         (msr & 1 << 30) ? "bit30, " : "",
2085                         (msr & 1 << 29) ? "Transitions, " : "",
2086                         (msr & 1 << 28) ? "MultiCoreTurbo, " : "",
2087                         (msr & 1 << 27) ? "PkgPwrL2, " : "",
2088                         (msr & 1 << 26) ? "PkgPwrL1, " : "",
2089                         (msr & 1 << 25) ? "CorePwr, " : "",
2090                         (msr & 1 << 24) ? "Amps, " : "",
2091                         (msr & 1 << 22) ? "VR-Therm, " : "",
2092                         (msr & 1 << 21) ? "Auto-HWP, " : "",
2093                         (msr & 1 << 20) ? "Graphics, " : "",
2094                         (msr & 1 << 18) ? "bit18, " : "",
2095                         (msr & 1 << 17) ? "ThermStatus, " : "",
2096                         (msr & 1 << 16) ? "PROCHOT, " : "");
2097
2098         }
2099         if (do_gfx_perf_limit_reasons) {
2100                 get_msr(cpu, MSR_GFX_PERF_LIMIT_REASONS, &msr);
2101                 fprintf(stderr, "cpu%d: MSR_GFX_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
2102                 fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s)",
2103                         (msr & 1 << 0) ? "PROCHOT, " : "",
2104                         (msr & 1 << 1) ? "ThermStatus, " : "",
2105                         (msr & 1 << 4) ? "Graphics, " : "",
2106                         (msr & 1 << 6) ? "VR-Therm, " : "",
2107                         (msr & 1 << 8) ? "Amps, " : "",
2108                         (msr & 1 << 9) ? "GFXPwr, " : "",
2109                         (msr & 1 << 10) ? "PkgPwrL1, " : "",
2110                         (msr & 1 << 11) ? "PkgPwrL2, " : "");
2111                 fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s)\n",
2112                         (msr & 1 << 16) ? "PROCHOT, " : "",
2113                         (msr & 1 << 17) ? "ThermStatus, " : "",
2114                         (msr & 1 << 20) ? "Graphics, " : "",
2115                         (msr & 1 << 22) ? "VR-Therm, " : "",
2116                         (msr & 1 << 24) ? "Amps, " : "",
2117                         (msr & 1 << 25) ? "GFXPwr, " : "",
2118                         (msr & 1 << 26) ? "PkgPwrL1, " : "",
2119                         (msr & 1 << 27) ? "PkgPwrL2, " : "");
2120         }
2121         if (do_ring_perf_limit_reasons) {
2122                 get_msr(cpu, MSR_RING_PERF_LIMIT_REASONS, &msr);
2123                 fprintf(stderr, "cpu%d: MSR_RING_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
2124                 fprintf(stderr, " (Active: %s%s%s%s%s%s)",
2125                         (msr & 1 << 0) ? "PROCHOT, " : "",
2126                         (msr & 1 << 1) ? "ThermStatus, " : "",
2127                         (msr & 1 << 6) ? "VR-Therm, " : "",
2128                         (msr & 1 << 8) ? "Amps, " : "",
2129                         (msr & 1 << 10) ? "PkgPwrL1, " : "",
2130                         (msr & 1 << 11) ? "PkgPwrL2, " : "");
2131                 fprintf(stderr, " (Logged: %s%s%s%s%s%s)\n",
2132                         (msr & 1 << 16) ? "PROCHOT, " : "",
2133                         (msr & 1 << 17) ? "ThermStatus, " : "",
2134                         (msr & 1 << 22) ? "VR-Therm, " : "",
2135                         (msr & 1 << 24) ? "Amps, " : "",
2136                         (msr & 1 << 26) ? "PkgPwrL1, " : "",
2137                         (msr & 1 << 27) ? "PkgPwrL2, " : "");
2138         }
2139         return 0;
2140 }
2141
2142 #define RAPL_POWER_GRANULARITY  0x7FFF  /* 15 bit power granularity */
2143 #define RAPL_TIME_GRANULARITY   0x3F /* 6 bit time granularity */
2144
2145 double get_tdp(model)
2146 {
2147         unsigned long long msr;
2148
2149         if (do_rapl & RAPL_PKG_POWER_INFO)
2150                 if (!get_msr(base_cpu, MSR_PKG_POWER_INFO, &msr))
2151                         return ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units;
2152
2153         switch (model) {
2154         case 0x37:
2155         case 0x4D:
2156                 return 30.0;
2157         default:
2158                 return 135.0;
2159         }
2160 }
2161
2162 /*
2163  * rapl_dram_energy_units_probe()
2164  * Energy units are either hard-coded, or come from RAPL Energy Unit MSR.
2165  */
2166 static double
2167 rapl_dram_energy_units_probe(int  model, double rapl_energy_units)
2168 {
2169         /* only called for genuine_intel, family 6 */
2170
2171         switch (model) {
2172         case 0x3F:      /* HSX */
2173         case 0x4F:      /* BDX */
2174         case 0x56:      /* BDX-DE */
2175         case 0x57:      /* KNL */
2176                 return (rapl_dram_energy_units = 15.3 / 1000000);
2177         default:
2178                 return (rapl_energy_units);
2179         }
2180 }
2181
2182
2183 /*
2184  * rapl_probe()
2185  *
2186  * sets do_rapl, rapl_power_units, rapl_energy_units, rapl_time_units
2187  */
2188 void rapl_probe(unsigned int family, unsigned int model)
2189 {
2190         unsigned long long msr;
2191         unsigned int time_unit;
2192         double tdp;
2193
2194         if (!genuine_intel)
2195                 return;
2196
2197         if (family != 6)
2198                 return;
2199
2200         switch (model) {
2201         case 0x2A:
2202         case 0x3A:
2203         case 0x3C:      /* HSW */
2204         case 0x45:      /* HSW */
2205         case 0x46:      /* HSW */
2206         case 0x3D:      /* BDW */
2207         case 0x47:      /* BDW */
2208                 do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_GFX | RAPL_PKG_POWER_INFO;
2209                 break;
2210         case 0x4E:      /* SKL */
2211         case 0x5E:      /* SKL */
2212                 do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO;
2213                 break;
2214         case 0x3F:      /* HSX */
2215         case 0x4F:      /* BDX */
2216         case 0x56:      /* BDX-DE */
2217         case 0x57:      /* KNL */
2218                 do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_POWER_INFO | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO;
2219                 break;
2220         case 0x2D:
2221         case 0x3E:
2222                 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;
2223                 break;
2224         case 0x37:      /* BYT */
2225         case 0x4D:      /* AVN */
2226                 do_rapl = RAPL_PKG | RAPL_CORES ;
2227                 break;
2228         default:
2229                 return;
2230         }
2231
2232         /* units on package 0, verify later other packages match */
2233         if (get_msr(base_cpu, MSR_RAPL_POWER_UNIT, &msr))
2234                 return;
2235
2236         rapl_power_units = 1.0 / (1 << (msr & 0xF));
2237         if (model == 0x37)
2238                 rapl_energy_units = 1.0 * (1 << (msr >> 8 & 0x1F)) / 1000000;
2239         else
2240                 rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F));
2241
2242         rapl_dram_energy_units = rapl_dram_energy_units_probe(model, rapl_energy_units);
2243
2244         time_unit = msr >> 16 & 0xF;
2245         if (time_unit == 0)
2246                 time_unit = 0xA;
2247
2248         rapl_time_units = 1.0 / (1 << (time_unit));
2249
2250         tdp = get_tdp(model);
2251
2252         rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp;
2253         if (debug)
2254                 fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp);
2255
2256         return;
2257 }
2258
2259 void perf_limit_reasons_probe(family, model)
2260 {
2261         if (!genuine_intel)
2262                 return;
2263
2264         if (family != 6)
2265                 return;
2266
2267         switch (model) {
2268         case 0x3C:      /* HSW */
2269         case 0x45:      /* HSW */
2270         case 0x46:      /* HSW */
2271                 do_gfx_perf_limit_reasons = 1;
2272         case 0x3F:      /* HSX */
2273                 do_core_perf_limit_reasons = 1;
2274                 do_ring_perf_limit_reasons = 1;
2275         default:
2276                 return;
2277         }
2278 }
2279
2280 int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2281 {
2282         unsigned long long msr;
2283         unsigned int dts;
2284         int cpu;
2285
2286         if (!(do_dts || do_ptm))
2287                 return 0;
2288
2289         cpu = t->cpu_id;
2290
2291         /* DTS is per-core, no need to print for each thread */
2292         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
2293                 return 0;
2294
2295         if (cpu_migrate(cpu)) {
2296                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
2297                 return -1;
2298         }
2299
2300         if (do_ptm && (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) {
2301                 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
2302                         return 0;
2303
2304                 dts = (msr >> 16) & 0x7F;
2305                 fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_STATUS: 0x%08llx (%d C)\n",
2306                         cpu, msr, tcc_activation_temp - dts);
2307
2308 #ifdef  THERM_DEBUG
2309                 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &msr))
2310                         return 0;
2311
2312                 dts = (msr >> 16) & 0x7F;
2313                 dts2 = (msr >> 8) & 0x7F;
2314                 fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
2315                         cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
2316 #endif
2317         }
2318
2319
2320         if (do_dts) {
2321                 unsigned int resolution;
2322
2323                 if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
2324                         return 0;
2325
2326                 dts = (msr >> 16) & 0x7F;
2327                 resolution = (msr >> 27) & 0xF;
2328                 fprintf(stderr, "cpu%d: MSR_IA32_THERM_STATUS: 0x%08llx (%d C +/- %d)\n",
2329                         cpu, msr, tcc_activation_temp - dts, resolution);
2330
2331 #ifdef THERM_DEBUG
2332                 if (get_msr(cpu, MSR_IA32_THERM_INTERRUPT, &msr))
2333                         return 0;
2334
2335                 dts = (msr >> 16) & 0x7F;
2336                 dts2 = (msr >> 8) & 0x7F;
2337                 fprintf(stderr, "cpu%d: MSR_IA32_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
2338                         cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
2339 #endif
2340         }
2341
2342         return 0;
2343 }
2344
2345 void print_power_limit_msr(int cpu, unsigned long long msr, char *label)
2346 {
2347         fprintf(stderr, "cpu%d: %s: %sabled (%f Watts, %f sec, clamp %sabled)\n",
2348                 cpu, label,
2349                 ((msr >> 15) & 1) ? "EN" : "DIS",
2350                 ((msr >> 0) & 0x7FFF) * rapl_power_units,
2351                 (1.0 + (((msr >> 22) & 0x3)/4.0)) * (1 << ((msr >> 17) & 0x1F)) * rapl_time_units,
2352                 (((msr >> 16) & 1) ? "EN" : "DIS"));
2353
2354         return;
2355 }
2356
2357 int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2358 {
2359         unsigned long long msr;
2360         int cpu;
2361
2362         if (!do_rapl)
2363                 return 0;
2364
2365         /* RAPL counters are per package, so print only for 1st thread/package */
2366         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
2367                 return 0;
2368
2369         cpu = t->cpu_id;
2370         if (cpu_migrate(cpu)) {
2371                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
2372                 return -1;
2373         }
2374
2375         if (get_msr(cpu, MSR_RAPL_POWER_UNIT, &msr))
2376                 return -1;
2377
2378         if (debug) {
2379                 fprintf(stderr, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx "
2380                         "(%f Watts, %f Joules, %f sec.)\n", cpu, msr,
2381                         rapl_power_units, rapl_energy_units, rapl_time_units);
2382         }
2383         if (do_rapl & RAPL_PKG_POWER_INFO) {
2384
2385                 if (get_msr(cpu, MSR_PKG_POWER_INFO, &msr))
2386                         return -5;
2387
2388
2389                 fprintf(stderr, "cpu%d: MSR_PKG_POWER_INFO: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
2390                         cpu, msr,
2391                         ((msr >>  0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2392                         ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2393                         ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2394                         ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
2395
2396         }
2397         if (do_rapl & RAPL_PKG) {
2398
2399                 if (get_msr(cpu, MSR_PKG_POWER_LIMIT, &msr))
2400                         return -9;
2401
2402                 fprintf(stderr, "cpu%d: MSR_PKG_POWER_LIMIT: 0x%08llx (%slocked)\n",
2403                         cpu, msr, (msr >> 63) & 1 ? "": "UN");
2404
2405                 print_power_limit_msr(cpu, msr, "PKG Limit #1");
2406                 fprintf(stderr, "cpu%d: PKG Limit #2: %sabled (%f Watts, %f* sec, clamp %sabled)\n",
2407                         cpu,
2408                         ((msr >> 47) & 1) ? "EN" : "DIS",
2409                         ((msr >> 32) & 0x7FFF) * rapl_power_units,
2410                         (1.0 + (((msr >> 54) & 0x3)/4.0)) * (1 << ((msr >> 49) & 0x1F)) * rapl_time_units,
2411                         ((msr >> 48) & 1) ? "EN" : "DIS");
2412         }
2413
2414         if (do_rapl & RAPL_DRAM_POWER_INFO) {
2415                 if (get_msr(cpu, MSR_DRAM_POWER_INFO, &msr))
2416                         return -6;
2417
2418                 fprintf(stderr, "cpu%d: MSR_DRAM_POWER_INFO,: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
2419                         cpu, msr,
2420                         ((msr >>  0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2421                         ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2422                         ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2423                         ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
2424         }
2425         if (do_rapl & RAPL_DRAM) {
2426                 if (get_msr(cpu, MSR_DRAM_POWER_LIMIT, &msr))
2427                         return -9;
2428                 fprintf(stderr, "cpu%d: MSR_DRAM_POWER_LIMIT: 0x%08llx (%slocked)\n",
2429                                 cpu, msr, (msr >> 31) & 1 ? "": "UN");
2430
2431                 print_power_limit_msr(cpu, msr, "DRAM Limit");
2432         }
2433         if (do_rapl & RAPL_CORE_POLICY) {
2434                 if (debug) {
2435                         if (get_msr(cpu, MSR_PP0_POLICY, &msr))
2436                                 return -7;
2437
2438                         fprintf(stderr, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF);
2439                 }
2440         }
2441         if (do_rapl & RAPL_CORES) {
2442                 if (debug) {
2443
2444                         if (get_msr(cpu, MSR_PP0_POWER_LIMIT, &msr))
2445                                 return -9;
2446                         fprintf(stderr, "cpu%d: MSR_PP0_POWER_LIMIT: 0x%08llx (%slocked)\n",
2447                                         cpu, msr, (msr >> 31) & 1 ? "": "UN");
2448                         print_power_limit_msr(cpu, msr, "Cores Limit");
2449                 }
2450         }
2451         if (do_rapl & RAPL_GFX) {
2452                 if (debug) {
2453                         if (get_msr(cpu, MSR_PP1_POLICY, &msr))
2454                                 return -8;
2455
2456                         fprintf(stderr, "cpu%d: MSR_PP1_POLICY: %lld\n", cpu, msr & 0xF);
2457
2458                         if (get_msr(cpu, MSR_PP1_POWER_LIMIT, &msr))
2459                                 return -9;
2460                         fprintf(stderr, "cpu%d: MSR_PP1_POWER_LIMIT: 0x%08llx (%slocked)\n",
2461                                         cpu, msr, (msr >> 31) & 1 ? "": "UN");
2462                         print_power_limit_msr(cpu, msr, "GFX Limit");
2463                 }
2464         }
2465         return 0;
2466 }
2467
2468 /*
2469  * SNB adds support for additional MSRs:
2470  *
2471  * MSR_PKG_C7_RESIDENCY            0x000003fa
2472  * MSR_CORE_C7_RESIDENCY           0x000003fe
2473  * MSR_PKG_C2_RESIDENCY            0x0000060d
2474  */
2475
2476 int has_snb_msrs(unsigned int family, unsigned int model)
2477 {
2478         if (!genuine_intel)
2479                 return 0;
2480
2481         switch (model) {
2482         case 0x2A:
2483         case 0x2D:
2484         case 0x3A:      /* IVB */
2485         case 0x3E:      /* IVB Xeon */
2486         case 0x3C:      /* HSW */
2487         case 0x3F:      /* HSW */
2488         case 0x45:      /* HSW */
2489         case 0x46:      /* HSW */
2490         case 0x3D:      /* BDW */
2491         case 0x47:      /* BDW */
2492         case 0x4F:      /* BDX */
2493         case 0x56:      /* BDX-DE */
2494         case 0x4E:      /* SKL */
2495         case 0x5E:      /* SKL */
2496                 return 1;
2497         }
2498         return 0;
2499 }
2500
2501 /*
2502  * HSW adds support for additional MSRs:
2503  *
2504  * MSR_PKG_C8_RESIDENCY            0x00000630
2505  * MSR_PKG_C9_RESIDENCY            0x00000631
2506  * MSR_PKG_C10_RESIDENCY           0x00000632
2507  */
2508 int has_hsw_msrs(unsigned int family, unsigned int model)
2509 {
2510         if (!genuine_intel)
2511                 return 0;
2512
2513         switch (model) {
2514         case 0x45:      /* HSW */
2515         case 0x3D:      /* BDW */
2516         case 0x4E:      /* SKL */
2517         case 0x5E:      /* SKL */
2518                 return 1;
2519         }
2520         return 0;
2521 }
2522
2523 /*
2524  * SKL adds support for additional MSRS:
2525  *
2526  * MSR_PKG_WEIGHTED_CORE_C0_RES    0x00000658
2527  * MSR_PKG_ANY_CORE_C0_RES         0x00000659
2528  * MSR_PKG_ANY_GFXE_C0_RES         0x0000065A
2529  * MSR_PKG_BOTH_CORE_GFXE_C0_RES   0x0000065B
2530  */
2531 int has_skl_msrs(unsigned int family, unsigned int model)
2532 {
2533         if (!genuine_intel)
2534                 return 0;
2535
2536         switch (model) {
2537         case 0x4E:      /* SKL */
2538         case 0x5E:      /* SKL */
2539                 return 1;
2540         }
2541         return 0;
2542 }
2543
2544
2545
2546 int is_slm(unsigned int family, unsigned int model)
2547 {
2548         if (!genuine_intel)
2549                 return 0;
2550         switch (model) {
2551         case 0x37:      /* BYT */
2552         case 0x4D:      /* AVN */
2553                 return 1;
2554         }
2555         return 0;
2556 }
2557
2558 int is_knl(unsigned int family, unsigned int model)
2559 {
2560         if (!genuine_intel)
2561                 return 0;
2562         switch (model) {
2563         case 0x57:      /* KNL */
2564                 return 1;
2565         }
2566         return 0;
2567 }
2568
2569 unsigned int get_aperf_mperf_multiplier(unsigned int family, unsigned int model)
2570 {
2571         if (is_knl(family, model))
2572                 return 1024;
2573         return 1;
2574 }
2575
2576 #define SLM_BCLK_FREQS 5
2577 double slm_freq_table[SLM_BCLK_FREQS] = { 83.3, 100.0, 133.3, 116.7, 80.0};
2578
2579 double slm_bclk(void)
2580 {
2581         unsigned long long msr = 3;
2582         unsigned int i;
2583         double freq;
2584
2585         if (get_msr(base_cpu, MSR_FSB_FREQ, &msr))
2586                 fprintf(stderr, "SLM BCLK: unknown\n");
2587
2588         i = msr & 0xf;
2589         if (i >= SLM_BCLK_FREQS) {
2590                 fprintf(stderr, "SLM BCLK[%d] invalid\n", i);
2591                 msr = 3;
2592         }
2593         freq = slm_freq_table[i];
2594
2595         fprintf(stderr, "SLM BCLK: %.1f Mhz\n", freq);
2596
2597         return freq;
2598 }
2599
2600 double discover_bclk(unsigned int family, unsigned int model)
2601 {
2602         if (has_snb_msrs(family, model))
2603                 return 100.00;
2604         else if (is_slm(family, model))
2605                 return slm_bclk();
2606         else
2607                 return 133.33;
2608 }
2609
2610 /*
2611  * MSR_IA32_TEMPERATURE_TARGET indicates the temperature where
2612  * the Thermal Control Circuit (TCC) activates.
2613  * This is usually equal to tjMax.
2614  *
2615  * Older processors do not have this MSR, so there we guess,
2616  * but also allow cmdline over-ride with -T.
2617  *
2618  * Several MSR temperature values are in units of degrees-C
2619  * below this value, including the Digital Thermal Sensor (DTS),
2620  * Package Thermal Management Sensor (PTM), and thermal event thresholds.
2621  */
2622 int set_temperature_target(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2623 {
2624         unsigned long long msr;
2625         unsigned int target_c_local;
2626         int cpu;
2627
2628         /* tcc_activation_temp is used only for dts or ptm */
2629         if (!(do_dts || do_ptm))
2630                 return 0;
2631
2632         /* this is a per-package concept */
2633         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
2634                 return 0;
2635
2636         cpu = t->cpu_id;
2637         if (cpu_migrate(cpu)) {
2638                 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
2639                 return -1;
2640         }
2641
2642         if (tcc_activation_temp_override != 0) {
2643                 tcc_activation_temp = tcc_activation_temp_override;
2644                 fprintf(stderr, "cpu%d: Using cmdline TCC Target (%d C)\n",
2645                         cpu, tcc_activation_temp);
2646                 return 0;
2647         }
2648
2649         /* Temperature Target MSR is Nehalem and newer only */
2650         if (!do_nhm_platform_info)
2651                 goto guess;
2652
2653         if (get_msr(base_cpu, MSR_IA32_TEMPERATURE_TARGET, &msr))
2654                 goto guess;
2655
2656         target_c_local = (msr >> 16) & 0xFF;
2657
2658         if (debug)
2659                 fprintf(stderr, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n",
2660                         cpu, msr, target_c_local);
2661
2662         if (!target_c_local)
2663                 goto guess;
2664
2665         tcc_activation_temp = target_c_local;
2666
2667         return 0;
2668
2669 guess:
2670         tcc_activation_temp = TJMAX_DEFAULT;
2671         fprintf(stderr, "cpu%d: Guessing tjMax %d C, Please use -T to specify\n",
2672                 cpu, tcc_activation_temp);
2673
2674         return 0;
2675 }
2676 void process_cpuid()
2677 {
2678         unsigned int eax, ebx, ecx, edx, max_level;
2679         unsigned int fms, family, model, stepping;
2680
2681         eax = ebx = ecx = edx = 0;
2682
2683         __get_cpuid(0, &max_level, &ebx, &ecx, &edx);
2684
2685         if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e)
2686                 genuine_intel = 1;
2687
2688         if (debug)
2689                 fprintf(stderr, "CPUID(0): %.4s%.4s%.4s ",
2690                         (char *)&ebx, (char *)&edx, (char *)&ecx);
2691
2692         __get_cpuid(1, &fms, &ebx, &ecx, &edx);
2693         family = (fms >> 8) & 0xf;
2694         model = (fms >> 4) & 0xf;
2695         stepping = fms & 0xf;
2696         if (family == 6 || family == 0xf)
2697                 model += ((fms >> 16) & 0xf) << 4;
2698
2699         if (debug)
2700                 fprintf(stderr, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n",
2701                         max_level, family, model, stepping, family, model, stepping);
2702
2703         if (!(edx & (1 << 5)))
2704                 errx(1, "CPUID: no MSR");
2705
2706         /*
2707          * check max extended function levels of CPUID.
2708          * This is needed to check for invariant TSC.
2709          * This check is valid for both Intel and AMD.
2710          */
2711         ebx = ecx = edx = 0;
2712         __get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx);
2713
2714         if (max_level >= 0x80000007) {
2715
2716                 /*
2717                  * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8
2718                  * this check is valid for both Intel and AMD
2719                  */
2720                 __get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx);
2721                 has_invariant_tsc = edx & (1 << 8);
2722         }
2723
2724         /*
2725          * APERF/MPERF is advertised by CPUID.EAX=0x6: ECX.bit0
2726          * this check is valid for both Intel and AMD
2727          */
2728
2729         __get_cpuid(0x6, &eax, &ebx, &ecx, &edx);
2730         has_aperf = ecx & (1 << 0);
2731         do_dts = eax & (1 << 0);
2732         do_ptm = eax & (1 << 6);
2733         has_epb = ecx & (1 << 3);
2734
2735         if (debug)
2736                 fprintf(stderr, "CPUID(6): %sAPERF, %sDTS, %sPTM, %sEPB\n",
2737                         has_aperf ? "" : "No ",
2738                         do_dts ? "" : "No ",
2739                         do_ptm ? "" : "No ",
2740                         has_epb ? "" : "No ");
2741
2742         if (max_level > 0x15) {
2743                 unsigned int eax_crystal;
2744                 unsigned int ebx_tsc;
2745
2746                 /*
2747                  * CPUID 15H TSC/Crystal ratio, possibly Crystal Hz
2748                  */
2749                 eax_crystal = ebx_tsc = crystal_hz = edx = 0;
2750                 __get_cpuid(0x15, &eax_crystal, &ebx_tsc, &crystal_hz, &edx);
2751
2752                 if (ebx_tsc != 0) {
2753
2754                         if (debug && (ebx != 0))
2755                                 fprintf(stderr, "CPUID(0x15): eax_crystal: %d ebx_tsc: %d ecx_crystal_hz: %d\n",
2756                                         eax_crystal, ebx_tsc, crystal_hz);
2757
2758                         if (crystal_hz == 0)
2759                                 switch(model) {
2760                                 case 0x4E:      /* SKL */
2761                                 case 0x5E:      /* SKL */
2762                                         crystal_hz = 24000000;  /* 24 MHz */
2763                                         break;
2764                                 default:
2765                                         crystal_hz = 0;
2766                         }
2767
2768                         if (crystal_hz) {
2769                                 tsc_hz =  (unsigned long long) crystal_hz * ebx_tsc / eax_crystal;
2770                                 if (debug)
2771                                         fprintf(stderr, "TSC: %lld MHz (%d Hz * %d / %d / 1000000)\n",
2772                                                 tsc_hz / 1000000, crystal_hz, ebx_tsc,  eax_crystal);
2773                         }
2774                 }
2775         }
2776
2777         if (has_aperf)
2778                 aperf_mperf_multiplier = get_aperf_mperf_multiplier(family, model);
2779
2780         do_nhm_platform_info = do_nhm_cstates = do_smi = probe_nhm_msrs(family, model);
2781         do_snb_cstates = has_snb_msrs(family, model);
2782         do_pc2 = do_snb_cstates && (pkg_cstate_limit >= PCL__2);
2783         do_pc3 = (pkg_cstate_limit >= PCL__3);
2784         do_pc6 = (pkg_cstate_limit >= PCL__6);
2785         do_pc7 = do_snb_cstates && (pkg_cstate_limit >= PCL__7);
2786         do_c8_c9_c10 = has_hsw_msrs(family, model);
2787         do_skl_residency = has_skl_msrs(family, model);
2788         do_slm_cstates = is_slm(family, model);
2789         do_knl_cstates  = is_knl(family, model);
2790
2791         rapl_probe(family, model);
2792         perf_limit_reasons_probe(family, model);
2793
2794         if (debug)
2795                 dump_cstate_pstate_config_info();
2796
2797         if (has_skl_msrs(family, model))
2798                 calculate_tsc_tweak();
2799
2800         return;
2801 }
2802
2803 void help()
2804 {
2805         fprintf(stderr,
2806         "Usage: turbostat [OPTIONS][(--interval seconds) | COMMAND ...]\n"
2807         "\n"
2808         "Turbostat forks the specified COMMAND and prints statistics\n"
2809         "when COMMAND completes.\n"
2810         "If no COMMAND is specified, turbostat wakes every 5-seconds\n"
2811         "to print statistics, until interrupted.\n"
2812         "--debug        run in \"debug\" mode\n"
2813         "--interval sec Override default 5-second measurement interval\n"
2814         "--help         print this help message\n"
2815         "--counter msr  print 32-bit counter at address \"msr\"\n"
2816         "--Counter msr  print 64-bit Counter at address \"msr\"\n"
2817         "--msr msr      print 32-bit value at address \"msr\"\n"
2818         "--MSR msr      print 64-bit Value at address \"msr\"\n"
2819         "--version      print version information\n"
2820         "\n"
2821         "For more help, run \"man turbostat\"\n");
2822 }
2823
2824
2825 /*
2826  * in /dev/cpu/ return success for names that are numbers
2827  * ie. filter out ".", "..", "microcode".
2828  */
2829 int dir_filter(const struct dirent *dirp)
2830 {
2831         if (isdigit(dirp->d_name[0]))
2832                 return 1;
2833         else
2834                 return 0;
2835 }
2836
2837 int open_dev_cpu_msr(int dummy1)
2838 {
2839         return 0;
2840 }
2841
2842 void topology_probe()
2843 {
2844         int i;
2845         int max_core_id = 0;
2846         int max_package_id = 0;
2847         int max_siblings = 0;
2848         struct cpu_topology {
2849                 int core_id;
2850                 int physical_package_id;
2851         } *cpus;
2852
2853         /* Initialize num_cpus, max_cpu_num */
2854         topo.num_cpus = 0;
2855         topo.max_cpu_num = 0;
2856         for_all_proc_cpus(count_cpus);
2857         if (!summary_only && topo.num_cpus > 1)
2858                 show_cpu = 1;
2859
2860         if (debug > 1)
2861                 fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num);
2862
2863         cpus = calloc(1, (topo.max_cpu_num  + 1) * sizeof(struct cpu_topology));
2864         if (cpus == NULL)
2865                 err(1, "calloc cpus");
2866
2867         /*
2868          * Allocate and initialize cpu_present_set
2869          */
2870         cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1));
2871         if (cpu_present_set == NULL)
2872                 err(3, "CPU_ALLOC");
2873         cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
2874         CPU_ZERO_S(cpu_present_setsize, cpu_present_set);
2875         for_all_proc_cpus(mark_cpu_present);
2876
2877         /*
2878          * Allocate and initialize cpu_affinity_set
2879          */
2880         cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1));
2881         if (cpu_affinity_set == NULL)
2882                 err(3, "CPU_ALLOC");
2883         cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
2884         CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
2885
2886
2887         /*
2888          * For online cpus
2889          * find max_core_id, max_package_id
2890          */
2891         for (i = 0; i <= topo.max_cpu_num; ++i) {
2892                 int siblings;
2893
2894                 if (cpu_is_not_present(i)) {
2895                         if (debug > 1)
2896                                 fprintf(stderr, "cpu%d NOT PRESENT\n", i);
2897                         continue;
2898                 }
2899                 cpus[i].core_id = get_core_id(i);
2900                 if (cpus[i].core_id > max_core_id)
2901                         max_core_id = cpus[i].core_id;
2902
2903                 cpus[i].physical_package_id = get_physical_package_id(i);
2904                 if (cpus[i].physical_package_id > max_package_id)
2905                         max_package_id = cpus[i].physical_package_id;
2906
2907                 siblings = get_num_ht_siblings(i);
2908                 if (siblings > max_siblings)
2909                         max_siblings = siblings;
2910                 if (debug > 1)
2911                         fprintf(stderr, "cpu %d pkg %d core %d\n",
2912                                 i, cpus[i].physical_package_id, cpus[i].core_id);
2913         }
2914         topo.num_cores_per_pkg = max_core_id + 1;
2915         if (debug > 1)
2916                 fprintf(stderr, "max_core_id %d, sizing for %d cores per package\n",
2917                         max_core_id, topo.num_cores_per_pkg);
2918         if (debug && !summary_only && topo.num_cores_per_pkg > 1)
2919                 show_core = 1;
2920
2921         topo.num_packages = max_package_id + 1;
2922         if (debug > 1)
2923                 fprintf(stderr, "max_package_id %d, sizing for %d packages\n",
2924                         max_package_id, topo.num_packages);
2925         if (debug && !summary_only && topo.num_packages > 1)
2926                 show_pkg = 1;
2927
2928         topo.num_threads_per_core = max_siblings;
2929         if (debug > 1)
2930                 fprintf(stderr, "max_siblings %d\n", max_siblings);
2931
2932         free(cpus);
2933 }
2934
2935 void
2936 allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p)
2937 {
2938         int i;
2939
2940         *t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg *
2941                 topo.num_packages, sizeof(struct thread_data));
2942         if (*t == NULL)
2943                 goto error;
2944
2945         for (i = 0; i < topo.num_threads_per_core *
2946                 topo.num_cores_per_pkg * topo.num_packages; i++)
2947                 (*t)[i].cpu_id = -1;
2948
2949         *c = calloc(topo.num_cores_per_pkg * topo.num_packages,
2950                 sizeof(struct core_data));
2951         if (*c == NULL)
2952                 goto error;
2953
2954         for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++)
2955                 (*c)[i].core_id = -1;
2956
2957         *p = calloc(topo.num_packages, sizeof(struct pkg_data));
2958         if (*p == NULL)
2959                 goto error;
2960
2961         for (i = 0; i < topo.num_packages; i++)
2962                 (*p)[i].package_id = i;
2963
2964         return;
2965 error:
2966         err(1, "calloc counters");
2967 }
2968 /*
2969  * init_counter()
2970  *
2971  * set cpu_id, core_num, pkg_num
2972  * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE
2973  *
2974  * increment topo.num_cores when 1st core in pkg seen
2975  */
2976 void init_counter(struct thread_data *thread_base, struct core_data *core_base,
2977         struct pkg_data *pkg_base, int thread_num, int core_num,
2978         int pkg_num, int cpu_id)
2979 {
2980         struct thread_data *t;
2981         struct core_data *c;
2982         struct pkg_data *p;
2983
2984         t = GET_THREAD(thread_base, thread_num, core_num, pkg_num);
2985         c = GET_CORE(core_base, core_num, pkg_num);
2986         p = GET_PKG(pkg_base, pkg_num);
2987
2988         t->cpu_id = cpu_id;
2989         if (thread_num == 0) {
2990                 t->flags |= CPU_IS_FIRST_THREAD_IN_CORE;
2991                 if (cpu_is_first_core_in_package(cpu_id))
2992                         t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE;
2993         }
2994
2995         c->core_id = core_num;
2996         p->package_id = pkg_num;
2997 }
2998
2999
3000 int initialize_counters(int cpu_id)
3001 {
3002         int my_thread_id, my_core_id, my_package_id;
3003
3004         my_package_id = get_physical_package_id(cpu_id);
3005         my_core_id = get_core_id(cpu_id);
3006         my_thread_id = get_cpu_position_in_core(cpu_id);
3007         if (!my_thread_id)
3008                 topo.num_cores++;
3009
3010         init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
3011         init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
3012         return 0;
3013 }
3014
3015 void allocate_output_buffer()
3016 {
3017         output_buffer = calloc(1, (1 + topo.num_cpus) * 1024);
3018         outp = output_buffer;
3019         if (outp == NULL)
3020                 err(-1, "calloc output buffer");
3021 }
3022
3023 void setup_all_buffers(void)
3024 {
3025         topology_probe();
3026         allocate_counters(&thread_even, &core_even, &package_even);
3027         allocate_counters(&thread_odd, &core_odd, &package_odd);
3028         allocate_output_buffer();
3029         for_all_proc_cpus(initialize_counters);
3030 }
3031
3032 void set_base_cpu(void)
3033 {
3034         base_cpu = sched_getcpu();
3035         if (base_cpu < 0)
3036                 err(-ENODEV, "No valid cpus found");
3037
3038         if (debug > 1)
3039                 fprintf(stderr, "base_cpu = %d\n", base_cpu);
3040 }
3041
3042 void turbostat_init()
3043 {
3044         setup_all_buffers();
3045         set_base_cpu();
3046         check_dev_msr();
3047         check_permissions();
3048         process_cpuid();
3049
3050
3051         if (debug)
3052                 for_all_cpus(print_epb, ODD_COUNTERS);
3053
3054         if (debug)
3055                 for_all_cpus(print_perf_limit, ODD_COUNTERS);
3056
3057         if (debug)
3058                 for_all_cpus(print_rapl, ODD_COUNTERS);
3059
3060         for_all_cpus(set_temperature_target, ODD_COUNTERS);
3061
3062         if (debug)
3063                 for_all_cpus(print_thermal, ODD_COUNTERS);
3064 }
3065
3066 int fork_it(char **argv)
3067 {
3068         pid_t child_pid;
3069         int status;
3070
3071         status = for_all_cpus(get_counters, EVEN_COUNTERS);
3072         if (status)
3073                 exit(status);
3074         /* clear affinity side-effect of get_counters() */
3075         sched_setaffinity(0, cpu_present_setsize, cpu_present_set);
3076         gettimeofday(&tv_even, (struct timezone *)NULL);
3077
3078         child_pid = fork();
3079         if (!child_pid) {
3080                 /* child */
3081                 execvp(argv[0], argv);
3082         } else {
3083
3084                 /* parent */
3085                 if (child_pid == -1)
3086                         err(1, "fork");
3087
3088                 signal(SIGINT, SIG_IGN);
3089                 signal(SIGQUIT, SIG_IGN);
3090                 if (waitpid(child_pid, &status, 0) == -1)
3091                         err(status, "waitpid");
3092         }
3093         /*
3094          * n.b. fork_it() does not check for errors from for_all_cpus()
3095          * because re-starting is problematic when forking
3096          */
3097         for_all_cpus(get_counters, ODD_COUNTERS);
3098         gettimeofday(&tv_odd, (struct timezone *)NULL);
3099         timersub(&tv_odd, &tv_even, &tv_delta);
3100         for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
3101         compute_average(EVEN_COUNTERS);
3102         format_all_counters(EVEN_COUNTERS);
3103         flush_stderr();
3104
3105         fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0);
3106
3107         return status;
3108 }
3109
3110 int get_and_dump_counters(void)
3111 {
3112         int status;
3113
3114         status = for_all_cpus(get_counters, ODD_COUNTERS);
3115         if (status)
3116                 return status;
3117
3118         status = for_all_cpus(dump_counters, ODD_COUNTERS);
3119         if (status)
3120                 return status;
3121
3122         flush_stdout();
3123
3124         return status;
3125 }
3126
3127 void print_version() {
3128         fprintf(stderr, "turbostat version 4.8 26-Sep, 2015"
3129                 " - Len Brown <lenb@kernel.org>\n");
3130 }
3131
3132 void cmdline(int argc, char **argv)
3133 {
3134         int opt;
3135         int option_index = 0;
3136         static struct option long_options[] = {
3137                 {"Counter",     required_argument,      0, 'C'},
3138                 {"counter",     required_argument,      0, 'c'},
3139                 {"Dump",        no_argument,            0, 'D'},
3140                 {"debug",       no_argument,            0, 'd'},
3141                 {"interval",    required_argument,      0, 'i'},
3142                 {"help",        no_argument,            0, 'h'},
3143                 {"Joules",      no_argument,            0, 'J'},
3144                 {"MSR",         required_argument,      0, 'M'},
3145                 {"msr",         required_argument,      0, 'm'},
3146                 {"Package",     no_argument,            0, 'p'},
3147                 {"processor",   no_argument,            0, 'p'},
3148                 {"Summary",     no_argument,            0, 'S'},
3149                 {"TCC",         required_argument,      0, 'T'},
3150                 {"version",     no_argument,            0, 'v' },
3151                 {0,             0,                      0,  0 }
3152         };
3153
3154         progname = argv[0];
3155
3156         while ((opt = getopt_long_only(argc, argv, "+C:c:Ddhi:JM:m:PpST:v",
3157                                 long_options, &option_index)) != -1) {
3158                 switch (opt) {
3159                 case 'C':
3160                         sscanf(optarg, "%x", &extra_delta_offset64);
3161                         break;
3162                 case 'c':
3163                         sscanf(optarg, "%x", &extra_delta_offset32);
3164                         break;
3165                 case 'D':
3166                         dump_only++;
3167                         break;
3168                 case 'd':
3169                         debug++;
3170                         break;
3171                 case 'h':
3172                 default:
3173                         help();
3174                         exit(1);
3175                 case 'i':
3176                         interval_sec = atoi(optarg);
3177                         break;
3178                 case 'J':
3179                         rapl_joules++;
3180                         break;
3181                 case 'M':
3182                         sscanf(optarg, "%x", &extra_msr_offset64);
3183                         break;
3184                 case 'm':
3185                         sscanf(optarg, "%x", &extra_msr_offset32);
3186                         break;
3187                 case 'P':
3188                         show_pkg_only++;
3189                         break;
3190                 case 'p':
3191                         show_core_only++;
3192                         break;
3193                 case 'S':
3194                         summary_only++;
3195                         break;
3196                 case 'T':
3197                         tcc_activation_temp_override = atoi(optarg);
3198                         break;
3199                 case 'v':
3200                         print_version();
3201                         exit(0);
3202                         break;
3203                 }
3204         }
3205 }
3206
3207 int main(int argc, char **argv)
3208 {
3209         cmdline(argc, argv);
3210
3211         if (debug)
3212                 print_version();
3213
3214         turbostat_init();
3215
3216         /* dump counters and exit */
3217         if (dump_only)
3218                 return get_and_dump_counters();
3219
3220         /*
3221          * if any params left, it must be a command to fork
3222          */
3223         if (argc - optind)
3224                 return fork_it(argv + optind);
3225         else
3226                 turbostat_loop();
3227
3228         return 0;
3229 }