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 <time.h>
  42 #include <cpuid.h>
  43 #include <linux/capability.h>
  44 #include <errno.h>
  45
  46 char *proc_stat = "/proc/stat";
  47 FILE *outf;
  48 int *fd_percpu;
  49 struct timespec interval_ts = {5, 0};
  50 unsigned int debug;
  51 unsigned int rapl_joules;
  52 unsigned int summary_only;
  53 unsigned int dump_only;
  54 unsigned int skip_c0;
  55 unsigned int skip_c1;
  56 unsigned int do_nhm_cstates;
  57 unsigned int do_snb_cstates;
  58 unsigned int do_knl_cstates;
  59 unsigned int do_pc2;
  60 unsigned int do_pc3;
  61 unsigned int do_pc6;
  62 unsigned int do_pc7;
  63 unsigned int do_c8_c9_c10;
  64 unsigned int do_skl_residency;
  65 unsigned int do_slm_cstates;
  66 unsigned int use_c1_residency_msr;
  67 unsigned int has_aperf;
  68 unsigned int has_epb;
  69 unsigned int do_irtl_snb;
  70 unsigned int do_irtl_hsw;
  71 unsigned int units = 1000000;   /* MHz etc */
  72 unsigned int genuine_intel;
  73 unsigned int has_invariant_tsc;
  74 unsigned int do_nhm_platform_info;
  75 unsigned int extra_msr_offset32;
  76 unsigned int extra_msr_offset64;
  77 unsigned int extra_delta_offset32;
  78 unsigned int extra_delta_offset64;
  79 unsigned int aperf_mperf_multiplier = 1;
  80 int do_irq = 1;
  81 int do_smi;
  82 double bclk;
  83 double base_hz;
  84 unsigned int has_base_hz;
  85 double tsc_tweak = 1.0;
  86 unsigned int show_pkg;
  87 unsigned int show_core;
  88 unsigned int show_cpu;
  89 unsigned int show_pkg_only;
  90 unsigned int show_core_only;
  91 char *output_buffer, *outp;
  92 unsigned int do_rapl;
  93 unsigned int do_dts;
  94 unsigned int do_ptm;
  95 unsigned int do_gfx_rc6_ms;
  96 unsigned long long  gfx_cur_rc6_ms;
  97 unsigned int do_gfx_mhz;
  98 unsigned int gfx_cur_mhz;
  99 unsigned int tcc_activation_temp;
 100 unsigned int tcc_activation_temp_override;
 101 double rapl_power_units, rapl_time_units;
 102 double rapl_dram_energy_units, rapl_energy_units;
 103 double rapl_joule_counter_range;
 104 unsigned int do_core_perf_limit_reasons;
 105 unsigned int do_gfx_perf_limit_reasons;
 106 unsigned int do_ring_perf_limit_reasons;
 107 unsigned int crystal_hz;
 108 unsigned long long tsc_hz;
 109 int base_cpu;
 110 double discover_bclk(unsigned int family, unsigned int model);
 111 unsigned int has_hwp;   /* IA32_PM_ENABLE, IA32_HWP_CAPABILITIES */
 112                         /* IA32_HWP_REQUEST, IA32_HWP_STATUS */
 113 unsigned int has_hwp_notify;            /* IA32_HWP_INTERRUPT */
 114 unsigned int has_hwp_activity_window;   /* IA32_HWP_REQUEST[bits 41:32] */
 115 unsigned int has_hwp_epp;               /* IA32_HWP_REQUEST[bits 31:24] */
 116 unsigned int has_hwp_pkg;               /* IA32_HWP_REQUEST_PKG */
 117
 118 #define RAPL_PKG                (1 << 0)
 119                                         /* 0x610 MSR_PKG_POWER_LIMIT */
 120                                         /* 0x611 MSR_PKG_ENERGY_STATUS */
 121 #define RAPL_PKG_PERF_STATUS    (1 << 1)
 122                                         /* 0x613 MSR_PKG_PERF_STATUS */
 123 #define RAPL_PKG_POWER_INFO     (1 << 2)
 124                                         /* 0x614 MSR_PKG_POWER_INFO */
 125
 126 #define RAPL_DRAM               (1 << 3)
 127                                         /* 0x618 MSR_DRAM_POWER_LIMIT */
 128                                         /* 0x619 MSR_DRAM_ENERGY_STATUS */
 129 #define RAPL_DRAM_PERF_STATUS   (1 << 4)
 130                                         /* 0x61b MSR_DRAM_PERF_STATUS */
 131 #define RAPL_DRAM_POWER_INFO    (1 << 5)
 132                                         /* 0x61c MSR_DRAM_POWER_INFO */
 133
 134 #define RAPL_CORES              (1 << 6)
 135                                         /* 0x638 MSR_PP0_POWER_LIMIT */
 136                                         /* 0x639 MSR_PP0_ENERGY_STATUS */
 137 #define RAPL_CORE_POLICY        (1 << 7)
 138                                         /* 0x63a MSR_PP0_POLICY */
 139
 140 #define RAPL_GFX                (1 << 8)
 141                                         /* 0x640 MSR_PP1_POWER_LIMIT */
 142                                         /* 0x641 MSR_PP1_ENERGY_STATUS */
 143                                         /* 0x642 MSR_PP1_POLICY */
 144 #define TJMAX_DEFAULT   100
 145
 146 #define MAX(a, b) ((a) > (b) ? (a) : (b))
 147
 148 int aperf_mperf_unstable;
 149 int backwards_count;
 150 char *progname;
 151
 152 cpu_set_t *cpu_present_set, *cpu_affinity_set;
 153 size_t cpu_present_setsize, cpu_affinity_setsize;
 154
 155 struct thread_data {
 156         unsigned long long tsc;
 157         unsigned long long aperf;
 158         unsigned long long mperf;
 159         unsigned long long c1;
 160         unsigned long long extra_msr64;
 161         unsigned long long extra_delta64;
 162         unsigned long long extra_msr32;
 163         unsigned long long extra_delta32;
 164         unsigned int irq_count;
 165         unsigned int smi_count;
 166         unsigned int cpu_id;
 167         unsigned int flags;
 168 #define CPU_IS_FIRST_THREAD_IN_CORE     0x2
 169 #define CPU_IS_FIRST_CORE_IN_PACKAGE    0x4
 170 } *thread_even, *thread_odd;
 171
 172 struct core_data {
 173         unsigned long long c3;
 174         unsigned long long c6;
 175         unsigned long long c7;
 176         unsigned int core_temp_c;
 177         unsigned int core_id;
 178 } *core_even, *core_odd;
 179
 180 struct pkg_data {
 181         unsigned long long pc2;
 182         unsigned long long pc3;
 183         unsigned long long pc6;
 184         unsigned long long pc7;
 185         unsigned long long pc8;
 186         unsigned long long pc9;
 187         unsigned long long pc10;
 188         unsigned long long pkg_wtd_core_c0;
 189         unsigned long long pkg_any_core_c0;
 190         unsigned long long pkg_any_gfxe_c0;
 191         unsigned long long pkg_both_core_gfxe_c0;
 192         long long gfx_rc6_ms;
 193         unsigned int gfx_mhz;
 194         unsigned int package_id;
 195         unsigned int energy_pkg;        /* MSR_PKG_ENERGY_STATUS */
 196         unsigned int energy_dram;       /* MSR_DRAM_ENERGY_STATUS */
 197         unsigned int energy_cores;      /* MSR_PP0_ENERGY_STATUS */
 198         unsigned int energy_gfx;        /* MSR_PP1_ENERGY_STATUS */
 199         unsigned int rapl_pkg_perf_status;      /* MSR_PKG_PERF_STATUS */
 200         unsigned int rapl_dram_perf_status;     /* MSR_DRAM_PERF_STATUS */
 201         unsigned int pkg_temp_c;
 202
 203 } *package_even, *package_odd;
 204
 205 #define ODD_COUNTERS thread_odd, core_odd, package_odd
 206 #define EVEN_COUNTERS thread_even, core_even, package_even
 207
 208 #define GET_THREAD(thread_base, thread_no, core_no, pkg_no) \
 209         (thread_base + (pkg_no) * topo.num_cores_per_pkg * \
 210                 topo.num_threads_per_core + \
 211                 (core_no) * topo.num_threads_per_core + (thread_no))
 212 #define GET_CORE(core_base, core_no, pkg_no) \
 213         (core_base + (pkg_no) * topo.num_cores_per_pkg + (core_no))
 214 #define GET_PKG(pkg_base, pkg_no) (pkg_base + pkg_no)
 215
 216 struct system_summary {
 217         struct thread_data threads;
 218         struct core_data cores;
 219         struct pkg_data packages;
 220 } sum, average;
 221
 222
 223 struct topo_params {
 224         int num_packages;
 225         int num_cpus;
 226         int num_cores;
 227         int max_cpu_num;
 228         int num_cores_per_pkg;
 229         int num_threads_per_core;
 230 } topo;
 231
 232 struct timeval tv_even, tv_odd, tv_delta;
 233
 234 int *irq_column_2_cpu;  /* /proc/interrupts column numbers */
 235 int *irqs_per_cpu;              /* indexed by cpu_num */
 236
 237 void setup_all_buffers(void);
 238
 239 int cpu_is_not_present(int cpu)
 240 {
 241         return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set);
 242 }
 243 /*
 244  * run func(thread, core, package) in topology order
 245  * skip non-present cpus
 246  */
 247
 248 int for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *),
 249         struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base)
 250 {
 251         int retval, pkg_no, core_no, thread_no;
 252
 253         for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
 254                 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
 255                         for (thread_no = 0; thread_no <
 256                                 topo.num_threads_per_core; ++thread_no) {
 257                                 struct thread_data *t;
 258                                 struct core_data *c;
 259                                 struct pkg_data *p;
 260
 261                                 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
 262
 263                                 if (cpu_is_not_present(t->cpu_id))
 264                                         continue;
 265
 266                                 c = GET_CORE(core_base, core_no, pkg_no);
 267                                 p = GET_PKG(pkg_base, pkg_no);
 268
 269                                 retval = func(t, c, p);
 270                                 if (retval)
 271                                         return retval;
 272                         }
 273                 }
 274         }
 275         return 0;
 276 }
 277
 278 int cpu_migrate(int cpu)
 279 {
 280         CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
 281         CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set);
 282         if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1)
 283                 return -1;
 284         else
 285                 return 0;
 286 }
 287 int get_msr_fd(int cpu)
 288 {
 289         char pathname[32];
 290         int fd;
 291
 292         fd = fd_percpu[cpu];
 293
 294         if (fd)
 295                 return fd;
 296
 297         sprintf(pathname, "/dev/cpu/%d/msr", cpu);
 298         fd = open(pathname, O_RDONLY);
 299         if (fd < 0)
 300                 err(-1, "%s open failed, try chown or chmod +r /dev/cpu/*/msr, or run as root", pathname);
 301
 302         fd_percpu[cpu] = fd;
 303
 304         return fd;
 305 }
 306
 307 int get_msr(int cpu, off_t offset, unsigned long long *msr)
 308 {
 309         ssize_t retval;
 310
 311         retval = pread(get_msr_fd(cpu), msr, sizeof(*msr), offset);
 312
 313         if (retval != sizeof *msr)
 314                 err(-1, "msr %d offset 0x%llx read failed", cpu, (unsigned long long)offset);
 315
 316         return 0;
 317 }
 318
 319 /*
 320  * Example Format w/ field column widths:
 321  *
 322  *  Package    Core     CPU Avg_MHz Bzy_MHz TSC_MHz     IRQ   SMI   Busy% CPU_%c1 CPU_%c3 CPU_%c6 CPU_%c7 CoreTmp  PkgTmp  GFXMHz Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt CorWatt GFXWatt
 323  * 12345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678
 324  */
 325
 326 void print_header(void)
 327 {
 328         if (show_pkg)
 329                 outp += sprintf(outp, " Package");
 330         if (show_core)
 331                 outp += sprintf(outp, "    Core");
 332         if (show_cpu)
 333                 outp += sprintf(outp, "     CPU");
 334         if (has_aperf)
 335                 outp += sprintf(outp, " Avg_MHz");
 336         if (has_aperf)
 337                 outp += sprintf(outp, "   Busy%%");
 338         if (has_aperf)
 339                 outp += sprintf(outp, " Bzy_MHz");
 340         outp += sprintf(outp, " TSC_MHz");
 341
 342         if (extra_delta_offset32)
 343                 outp += sprintf(outp, "  count 0x%03X", extra_delta_offset32);
 344         if (extra_delta_offset64)
 345                 outp += sprintf(outp, "  COUNT 0x%03X", extra_delta_offset64);
 346         if (extra_msr_offset32)
 347                 outp += sprintf(outp, "   MSR 0x%03X", extra_msr_offset32);
 348         if (extra_msr_offset64)
 349                 outp += sprintf(outp, "           MSR 0x%03X", extra_msr_offset64);
 350
 351         if (!debug)
 352                 goto done;
 353
 354         if (do_irq)
 355                 outp += sprintf(outp, "     IRQ");
 356         if (do_smi)
 357                 outp += sprintf(outp, "     SMI");
 358
 359         if (do_nhm_cstates)
 360                 outp += sprintf(outp, "  CPU%%c1");
 361         if (do_nhm_cstates && !do_slm_cstates && !do_knl_cstates)
 362                 outp += sprintf(outp, "  CPU%%c3");
 363         if (do_nhm_cstates)
 364                 outp += sprintf(outp, "  CPU%%c6");
 365         if (do_snb_cstates)
 366                 outp += sprintf(outp, "  CPU%%c7");
 367
 368         if (do_dts)
 369                 outp += sprintf(outp, " CoreTmp");
 370         if (do_ptm)
 371                 outp += sprintf(outp, "  PkgTmp");
 372
 373         if (do_gfx_rc6_ms)
 374                 outp += sprintf(outp, " GFX%%rc6");
 375
 376         if (do_gfx_mhz)
 377                 outp += sprintf(outp, "  GFXMHz");
 378
 379         if (do_skl_residency) {
 380                 outp += sprintf(outp, " Totl%%C0");
 381                 outp += sprintf(outp, "  Any%%C0");
 382                 outp += sprintf(outp, "  GFX%%C0");
 383                 outp += sprintf(outp, " CPUGFX%%");
 384         }
 385
 386         if (do_pc2)
 387                 outp += sprintf(outp, " Pkg%%pc2");
 388         if (do_pc3)
 389                 outp += sprintf(outp, " Pkg%%pc3");
 390         if (do_pc6)
 391                 outp += sprintf(outp, " Pkg%%pc6");
 392         if (do_pc7)
 393                 outp += sprintf(outp, " Pkg%%pc7");
 394         if (do_c8_c9_c10) {
 395                 outp += sprintf(outp, " Pkg%%pc8");
 396                 outp += sprintf(outp, " Pkg%%pc9");
 397                 outp += sprintf(outp, " Pk%%pc10");
 398         }
 399
 400         if (do_rapl && !rapl_joules) {
 401                 if (do_rapl & RAPL_PKG)
 402                         outp += sprintf(outp, " PkgWatt");
 403                 if (do_rapl & RAPL_CORES)
 404                         outp += sprintf(outp, " CorWatt");
 405                 if (do_rapl & RAPL_GFX)
 406                         outp += sprintf(outp, " GFXWatt");
 407                 if (do_rapl & RAPL_DRAM)
 408                         outp += sprintf(outp, " RAMWatt");
 409                 if (do_rapl & RAPL_PKG_PERF_STATUS)
 410                         outp += sprintf(outp, "   PKG_%%");
 411                 if (do_rapl & RAPL_DRAM_PERF_STATUS)
 412                         outp += sprintf(outp, "   RAM_%%");
 413         } else if (do_rapl && rapl_joules) {
 414                 if (do_rapl & RAPL_PKG)
 415                         outp += sprintf(outp, "   Pkg_J");
 416                 if (do_rapl & RAPL_CORES)
 417                         outp += sprintf(outp, "   Cor_J");
 418                 if (do_rapl & RAPL_GFX)
 419                         outp += sprintf(outp, "   GFX_J");
 420                 if (do_rapl & RAPL_DRAM)
 421                         outp += sprintf(outp, "   RAM_J");
 422                 if (do_rapl & RAPL_PKG_PERF_STATUS)
 423                         outp += sprintf(outp, "   PKG_%%");
 424                 if (do_rapl & RAPL_DRAM_PERF_STATUS)
 425                         outp += sprintf(outp, "   RAM_%%");
 426                 outp += sprintf(outp, "   time");
 427
 428         }
 429     done:
 430         outp += sprintf(outp, "\n");
 431 }
 432
 433 int dump_counters(struct thread_data *t, struct core_data *c,
 434         struct pkg_data *p)
 435 {
 436         outp += sprintf(outp, "t %p, c %p, p %p\n", t, c, p);
 437
 438         if (t) {
 439                 outp += sprintf(outp, "CPU: %d flags 0x%x\n",
 440                         t->cpu_id, t->flags);
 441                 outp += sprintf(outp, "TSC: %016llX\n", t->tsc);
 442                 outp += sprintf(outp, "aperf: %016llX\n", t->aperf);
 443                 outp += sprintf(outp, "mperf: %016llX\n", t->mperf);
 444                 outp += sprintf(outp, "c1: %016llX\n", t->c1);
 445                 outp += sprintf(outp, "msr0x%x: %08llX\n",
 446                         extra_delta_offset32, t->extra_delta32);
 447                 outp += sprintf(outp, "msr0x%x: %016llX\n",
 448                         extra_delta_offset64, t->extra_delta64);
 449                 outp += sprintf(outp, "msr0x%x: %08llX\n",
 450                         extra_msr_offset32, t->extra_msr32);
 451                 outp += sprintf(outp, "msr0x%x: %016llX\n",
 452                         extra_msr_offset64, t->extra_msr64);
 453                 if (do_irq)
 454                         outp += sprintf(outp, "IRQ: %08X\n", t->irq_count);
 455                 if (do_smi)
 456                         outp += sprintf(outp, "SMI: %08X\n", t->smi_count);
 457         }
 458
 459         if (c) {
 460                 outp += sprintf(outp, "core: %d\n", c->core_id);
 461                 outp += sprintf(outp, "c3: %016llX\n", c->c3);
 462                 outp += sprintf(outp, "c6: %016llX\n", c->c6);
 463                 outp += sprintf(outp, "c7: %016llX\n", c->c7);
 464                 outp += sprintf(outp, "DTS: %dC\n", c->core_temp_c);
 465         }
 466
 467         if (p) {
 468                 outp += sprintf(outp, "package: %d\n", p->package_id);
 469
 470                 outp += sprintf(outp, "Weighted cores: %016llX\n", p->pkg_wtd_core_c0);
 471                 outp += sprintf(outp, "Any cores: %016llX\n", p->pkg_any_core_c0);
 472                 outp += sprintf(outp, "Any GFX: %016llX\n", p->pkg_any_gfxe_c0);
 473                 outp += sprintf(outp, "CPU + GFX: %016llX\n", p->pkg_both_core_gfxe_c0);
 474
 475                 outp += sprintf(outp, "pc2: %016llX\n", p->pc2);
 476                 if (do_pc3)
 477                         outp += sprintf(outp, "pc3: %016llX\n", p->pc3);
 478                 if (do_pc6)
 479                         outp += sprintf(outp, "pc6: %016llX\n", p->pc6);
 480                 if (do_pc7)
 481                         outp += sprintf(outp, "pc7: %016llX\n", p->pc7);
 482                 outp += sprintf(outp, "pc8: %016llX\n", p->pc8);
 483                 outp += sprintf(outp, "pc9: %016llX\n", p->pc9);
 484                 outp += sprintf(outp, "pc10: %016llX\n", p->pc10);
 485                 outp += sprintf(outp, "Joules PKG: %0X\n", p->energy_pkg);
 486                 outp += sprintf(outp, "Joules COR: %0X\n", p->energy_cores);
 487                 outp += sprintf(outp, "Joules GFX: %0X\n", p->energy_gfx);
 488                 outp += sprintf(outp, "Joules RAM: %0X\n", p->energy_dram);
 489                 outp += sprintf(outp, "Throttle PKG: %0X\n",
 490                         p->rapl_pkg_perf_status);
 491                 outp += sprintf(outp, "Throttle RAM: %0X\n",
 492                         p->rapl_dram_perf_status);
 493                 outp += sprintf(outp, "PTM: %dC\n", p->pkg_temp_c);
 494         }
 495
 496         outp += sprintf(outp, "\n");
 497
 498         return 0;
 499 }
 500
 501 /*
 502  * column formatting convention & formats
 503  */
 504 int format_counters(struct thread_data *t, struct core_data *c,
 505         struct pkg_data *p)
 506 {
 507         double interval_float;
 508         char *fmt8;
 509
 510          /* if showing only 1st thread in core and this isn't one, bail out */
 511         if (show_core_only && !(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
 512                 return 0;
 513
 514          /* if showing only 1st thread in pkg and this isn't one, bail out */
 515         if (show_pkg_only && !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
 516                 return 0;
 517
 518         interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0;
 519
 520         /* topo columns, print blanks on 1st (average) line */
 521         if (t == &average.threads) {
 522                 if (show_pkg)
 523                         outp += sprintf(outp, "       -");
 524                 if (show_core)
 525                         outp += sprintf(outp, "       -");
 526                 if (show_cpu)
 527                         outp += sprintf(outp, "       -");
 528         } else {
 529                 if (show_pkg) {
 530                         if (p)
 531                                 outp += sprintf(outp, "%8d", p->package_id);
 532                         else
 533                                 outp += sprintf(outp, "       -");
 534                 }
 535                 if (show_core) {
 536                         if (c)
 537                                 outp += sprintf(outp, "%8d", c->core_id);
 538                         else
 539                                 outp += sprintf(outp, "       -");
 540                 }
 541                 if (show_cpu)
 542                         outp += sprintf(outp, "%8d", t->cpu_id);
 543         }
 544
 545         /* Avg_MHz */
 546         if (has_aperf)
 547                 outp += sprintf(outp, "%8.0f",
 548                         1.0 / units * t->aperf / interval_float);
 549
 550         /* Busy% */
 551         if (has_aperf) {
 552                 if (!skip_c0)
 553                         outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc/tsc_tweak);
 554                 else
 555                         outp += sprintf(outp, "********");
 556         }
 557
 558         /* Bzy_MHz */
 559         if (has_aperf) {
 560                 if (has_base_hz)
 561                         outp += sprintf(outp, "%8.0f", base_hz / units * t->aperf / t->mperf);
 562                 else
 563                         outp += sprintf(outp, "%8.0f",
 564                                 1.0 * t->tsc / units * t->aperf / t->mperf / interval_float);
 565         }
 566
 567         /* TSC_MHz */
 568         outp += sprintf(outp, "%8.0f", 1.0 * t->tsc/units/interval_float);
 569
 570         /* delta */
 571         if (extra_delta_offset32)
 572                 outp += sprintf(outp, "  %11llu", t->extra_delta32);
 573
 574         /* DELTA */
 575         if (extra_delta_offset64)
 576                 outp += sprintf(outp, "  %11llu", t->extra_delta64);
 577         /* msr */
 578         if (extra_msr_offset32)
 579                 outp += sprintf(outp, "  0x%08llx", t->extra_msr32);
 580
 581         /* MSR */
 582         if (extra_msr_offset64)
 583                 outp += sprintf(outp, "  0x%016llx", t->extra_msr64);
 584
 585         if (!debug)
 586                 goto done;
 587
 588         /* IRQ */
 589         if (do_irq)
 590                 outp += sprintf(outp, "%8d", t->irq_count);
 591
 592         /* SMI */
 593         if (do_smi)
 594                 outp += sprintf(outp, "%8d", t->smi_count);
 595
 596         if (do_nhm_cstates) {
 597                 if (!skip_c1)
 598                         outp += sprintf(outp, "%8.2f", 100.0 * t->c1/t->tsc);
 599                 else
 600                         outp += sprintf(outp, "********");
 601         }
 602
 603         /* print per-core data only for 1st thread in core */
 604         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
 605                 goto done;
 606
 607         if (do_nhm_cstates && !do_slm_cstates && !do_knl_cstates)
 608                 outp += sprintf(outp, "%8.2f", 100.0 * c->c3/t->tsc);
 609         if (do_nhm_cstates)
 610                 outp += sprintf(outp, "%8.2f", 100.0 * c->c6/t->tsc);
 611         if (do_snb_cstates)
 612                 outp += sprintf(outp, "%8.2f", 100.0 * c->c7/t->tsc);
 613
 614         if (do_dts)
 615                 outp += sprintf(outp, "%8d", c->core_temp_c);
 616
 617         /* print per-package data only for 1st core in package */
 618         if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
 619                 goto done;
 620
 621         /* PkgTmp */
 622         if (do_ptm)
 623                 outp += sprintf(outp, "%8d", p->pkg_temp_c);
 624
 625         /* GFXrc6 */
 626         if (do_gfx_rc6_ms) {
 627                 if (p->gfx_rc6_ms == -1) {      /* detect counter reset */
 628                         outp += sprintf(outp, "  ***.**");
 629                 } else {
 630                         outp += sprintf(outp, "%8.2f",
 631                                 p->gfx_rc6_ms / 10.0 / interval_float);
 632                 }
 633         }
 634
 635         /* GFXMHz */
 636         if (do_gfx_mhz)
 637                 outp += sprintf(outp, "%8d", p->gfx_mhz);
 638
 639         /* Totl%C0, Any%C0 GFX%C0 CPUGFX% */
 640         if (do_skl_residency) {
 641                 outp += sprintf(outp, "%8.2f", 100.0 * p->pkg_wtd_core_c0/t->tsc);
 642                 outp += sprintf(outp, "%8.2f", 100.0 * p->pkg_any_core_c0/t->tsc);
 643                 outp += sprintf(outp, "%8.2f", 100.0 * p->pkg_any_gfxe_c0/t->tsc);
 644                 outp += sprintf(outp, "%8.2f", 100.0 * p->pkg_both_core_gfxe_c0/t->tsc);
 645         }
 646
 647         if (do_pc2)
 648                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc2/t->tsc);
 649         if (do_pc3)
 650                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc3/t->tsc);
 651         if (do_pc6)
 652                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc6/t->tsc);
 653         if (do_pc7)
 654                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc7/t->tsc);
 655         if (do_c8_c9_c10) {
 656                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc8/t->tsc);
 657                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc9/t->tsc);
 658                 outp += sprintf(outp, "%8.2f", 100.0 * p->pc10/t->tsc);
 659         }
 660
 661         /*
 662          * If measurement interval exceeds minimum RAPL Joule Counter range,
 663          * indicate that results are suspect by printing "**" in fraction place.
 664          */
 665         if (interval_float < rapl_joule_counter_range)
 666                 fmt8 = "%8.2f";
 667         else
 668                 fmt8 = " %6.0f**";
 669
 670         if (do_rapl && !rapl_joules) {
 671                 if (do_rapl & RAPL_PKG)
 672                         outp += sprintf(outp, fmt8, p->energy_pkg * rapl_energy_units / interval_float);
 673                 if (do_rapl & RAPL_CORES)
 674                         outp += sprintf(outp, fmt8, p->energy_cores * rapl_energy_units / interval_float);
 675                 if (do_rapl & RAPL_GFX)
 676                         outp += sprintf(outp, fmt8, p->energy_gfx * rapl_energy_units / interval_float);
 677                 if (do_rapl & RAPL_DRAM)
 678                         outp += sprintf(outp, fmt8, p->energy_dram * rapl_dram_energy_units / interval_float);
 679                 if (do_rapl & RAPL_PKG_PERF_STATUS)
 680                         outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float);
 681                 if (do_rapl & RAPL_DRAM_PERF_STATUS)
 682                         outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float);
 683         } else if (do_rapl && rapl_joules) {
 684                 if (do_rapl & RAPL_PKG)
 685                         outp += sprintf(outp, fmt8,
 686                                         p->energy_pkg * rapl_energy_units);
 687                 if (do_rapl & RAPL_CORES)
 688                         outp += sprintf(outp, fmt8,
 689                                         p->energy_cores * rapl_energy_units);
 690                 if (do_rapl & RAPL_GFX)
 691                         outp += sprintf(outp, fmt8,
 692                                         p->energy_gfx * rapl_energy_units);
 693                 if (do_rapl & RAPL_DRAM)
 694                         outp += sprintf(outp, fmt8,
 695                                         p->energy_dram * rapl_dram_energy_units);
 696                 if (do_rapl & RAPL_PKG_PERF_STATUS)
 697                         outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float);
 698                 if (do_rapl & RAPL_DRAM_PERF_STATUS)
 699                         outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float);
 700
 701                 outp += sprintf(outp, fmt8, interval_float);
 702         }
 703 done:
 704         outp += sprintf(outp, "\n");
 705
 706         return 0;
 707 }
 708
 709 void flush_output_stdout(void)
 710 {
 711         FILE *filep;
 712
 713         if (outf == stderr)
 714                 filep = stdout;
 715         else
 716                 filep = outf;
 717
 718         fputs(output_buffer, filep);
 719         fflush(filep);
 720
 721         outp = output_buffer;
 722 }
 723 void flush_output_stderr(void)
 724 {
 725         fputs(output_buffer, outf);
 726         fflush(outf);
 727         outp = output_buffer;
 728 }
 729 void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 730 {
 731         static int printed;
 732
 733         if (!printed || !summary_only)
 734                 print_header();
 735
 736         if (topo.num_cpus > 1)
 737                 format_counters(&average.threads, &average.cores,
 738                         &average.packages);
 739
 740         printed = 1;
 741
 742         if (summary_only)
 743                 return;
 744
 745         for_all_cpus(format_counters, t, c, p);
 746 }
 747
 748 #define DELTA_WRAP32(new, old)                  \
 749         if (new > old) {                        \
 750                 old = new - old;                \
 751         } else {                                \
 752                 old = 0x100000000 + new - old;  \
 753         }
 754
 755 void
 756 delta_package(struct pkg_data *new, struct pkg_data *old)
 757 {
 758
 759         if (do_skl_residency) {
 760                 old->pkg_wtd_core_c0 = new->pkg_wtd_core_c0 - old->pkg_wtd_core_c0;
 761                 old->pkg_any_core_c0 = new->pkg_any_core_c0 - old->pkg_any_core_c0;
 762                 old->pkg_any_gfxe_c0 = new->pkg_any_gfxe_c0 - old->pkg_any_gfxe_c0;
 763                 old->pkg_both_core_gfxe_c0 = new->pkg_both_core_gfxe_c0 - old->pkg_both_core_gfxe_c0;
 764         }
 765         old->pc2 = new->pc2 - old->pc2;
 766         if (do_pc3)
 767                 old->pc3 = new->pc3 - old->pc3;
 768         if (do_pc6)
 769                 old->pc6 = new->pc6 - old->pc6;
 770         if (do_pc7)
 771                 old->pc7 = new->pc7 - old->pc7;
 772         old->pc8 = new->pc8 - old->pc8;
 773         old->pc9 = new->pc9 - old->pc9;
 774         old->pc10 = new->pc10 - old->pc10;
 775         old->pkg_temp_c = new->pkg_temp_c;
 776
 777         /* flag an error when rc6 counter resets/wraps */
 778         if (old->gfx_rc6_ms >  new->gfx_rc6_ms)
 779                 old->gfx_rc6_ms = -1;
 780         else
 781                 old->gfx_rc6_ms = new->gfx_rc6_ms - old->gfx_rc6_ms;
 782
 783         old->gfx_mhz = new->gfx_mhz;
 784
 785         DELTA_WRAP32(new->energy_pkg, old->energy_pkg);
 786         DELTA_WRAP32(new->energy_cores, old->energy_cores);
 787         DELTA_WRAP32(new->energy_gfx, old->energy_gfx);
 788         DELTA_WRAP32(new->energy_dram, old->energy_dram);
 789         DELTA_WRAP32(new->rapl_pkg_perf_status, old->rapl_pkg_perf_status);
 790         DELTA_WRAP32(new->rapl_dram_perf_status, old->rapl_dram_perf_status);
 791 }
 792
 793 void
 794 delta_core(struct core_data *new, struct core_data *old)
 795 {
 796         old->c3 = new->c3 - old->c3;
 797         old->c6 = new->c6 - old->c6;
 798         old->c7 = new->c7 - old->c7;
 799         old->core_temp_c = new->core_temp_c;
 800 }
 801
 802 /*
 803  * old = new - old
 804  */
 805 void
 806 delta_thread(struct thread_data *new, struct thread_data *old,
 807         struct core_data *core_delta)
 808 {
 809         old->tsc = new->tsc - old->tsc;
 810
 811         /* check for TSC < 1 Mcycles over interval */
 812         if (old->tsc < (1000 * 1000))
 813                 errx(-3, "Insanely slow TSC rate, TSC stops in idle?\n"
 814                      "You can disable all c-states by booting with \"idle=poll\"\n"
 815                      "or just the deep ones with \"processor.max_cstate=1\"");
 816
 817         old->c1 = new->c1 - old->c1;
 818
 819         if (has_aperf) {
 820                 if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) {
 821                         old->aperf = new->aperf - old->aperf;
 822                         old->mperf = new->mperf - old->mperf;
 823                 } else {
 824
 825                         if (!aperf_mperf_unstable) {
 826                                 fprintf(outf, "%s: APERF or MPERF went backwards *\n", progname);
 827                                 fprintf(outf, "* Frequency results do not cover entire interval *\n");
 828                                 fprintf(outf, "* fix this by running Linux-2.6.30 or later *\n");
 829
 830                                 aperf_mperf_unstable = 1;
 831                         }
 832                         /*
 833                          * mperf delta is likely a huge "positive" number
 834                          * can not use it for calculating c0 time
 835                          */
 836                         skip_c0 = 1;
 837                         skip_c1 = 1;
 838                 }
 839         }
 840
 841
 842         if (use_c1_residency_msr) {
 843                 /*
 844                  * Some models have a dedicated C1 residency MSR,
 845                  * which should be more accurate than the derivation below.
 846                  */
 847         } else {
 848                 /*
 849                  * As counter collection is not atomic,
 850                  * it is possible for mperf's non-halted cycles + idle states
 851                  * to exceed TSC's all cycles: show c1 = 0% in that case.
 852                  */
 853                 if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc)
 854                         old->c1 = 0;
 855                 else {
 856                         /* normal case, derive c1 */
 857                         old->c1 = old->tsc - old->mperf - core_delta->c3
 858                                 - core_delta->c6 - core_delta->c7;
 859                 }
 860         }
 861
 862         if (old->mperf == 0) {
 863                 if (debug > 1)
 864                         fprintf(outf, "cpu%d MPERF 0!\n", old->cpu_id);
 865                 old->mperf = 1; /* divide by 0 protection */
 866         }
 867
 868         old->extra_delta32 = new->extra_delta32 - old->extra_delta32;
 869         old->extra_delta32 &= 0xFFFFFFFF;
 870
 871         old->extra_delta64 = new->extra_delta64 - old->extra_delta64;
 872
 873         /*
 874          * Extra MSR is just a snapshot, simply copy latest w/o subtracting
 875          */
 876         old->extra_msr32 = new->extra_msr32;
 877         old->extra_msr64 = new->extra_msr64;
 878
 879         if (do_irq)
 880                 old->irq_count = new->irq_count - old->irq_count;
 881
 882         if (do_smi)
 883                 old->smi_count = new->smi_count - old->smi_count;
 884 }
 885
 886 int delta_cpu(struct thread_data *t, struct core_data *c,
 887         struct pkg_data *p, struct thread_data *t2,
 888         struct core_data *c2, struct pkg_data *p2)
 889 {
 890         /* calculate core delta only for 1st thread in core */
 891         if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE)
 892                 delta_core(c, c2);
 893
 894         /* always calculate thread delta */
 895         delta_thread(t, t2, c2);        /* c2 is core delta */
 896
 897         /* calculate package delta only for 1st core in package */
 898         if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)
 899                 delta_package(p, p2);
 900
 901         return 0;
 902 }
 903
 904 void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 905 {
 906         t->tsc = 0;
 907         t->aperf = 0;
 908         t->mperf = 0;
 909         t->c1 = 0;
 910
 911         t->extra_delta32 = 0;
 912         t->extra_delta64 = 0;
 913
 914         t->irq_count = 0;
 915         t->smi_count = 0;
 916
 917         /* tells format_counters to dump all fields from this set */
 918         t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE;
 919
 920         c->c3 = 0;
 921         c->c6 = 0;
 922         c->c7 = 0;
 923         c->core_temp_c = 0;
 924
 925         p->pkg_wtd_core_c0 = 0;
 926         p->pkg_any_core_c0 = 0;
 927         p->pkg_any_gfxe_c0 = 0;
 928         p->pkg_both_core_gfxe_c0 = 0;
 929
 930         p->pc2 = 0;
 931         if (do_pc3)
 932                 p->pc3 = 0;
 933         if (do_pc6)
 934                 p->pc6 = 0;
 935         if (do_pc7)
 936                 p->pc7 = 0;
 937         p->pc8 = 0;
 938         p->pc9 = 0;
 939         p->pc10 = 0;
 940
 941         p->energy_pkg = 0;
 942         p->energy_dram = 0;
 943         p->energy_cores = 0;
 944         p->energy_gfx = 0;
 945         p->rapl_pkg_perf_status = 0;
 946         p->rapl_dram_perf_status = 0;
 947         p->pkg_temp_c = 0;
 948
 949         p->gfx_rc6_ms = 0;
 950         p->gfx_mhz = 0;
 951 }
 952 int sum_counters(struct thread_data *t, struct core_data *c,
 953         struct pkg_data *p)
 954 {
 955         average.threads.tsc += t->tsc;
 956         average.threads.aperf += t->aperf;
 957         average.threads.mperf += t->mperf;
 958         average.threads.c1 += t->c1;
 959
 960         average.threads.extra_delta32 += t->extra_delta32;
 961         average.threads.extra_delta64 += t->extra_delta64;
 962
 963         average.threads.irq_count += t->irq_count;
 964         average.threads.smi_count += t->smi_count;
 965
 966         /* sum per-core values only for 1st thread in core */
 967         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
 968                 return 0;
 969
 970         average.cores.c3 += c->c3;
 971         average.cores.c6 += c->c6;
 972         average.cores.c7 += c->c7;
 973
 974         average.cores.core_temp_c = MAX(average.cores.core_temp_c, c->core_temp_c);
 975
 976         /* sum per-pkg values only for 1st core in pkg */
 977         if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
 978                 return 0;
 979
 980         if (do_skl_residency) {
 981                 average.packages.pkg_wtd_core_c0 += p->pkg_wtd_core_c0;
 982                 average.packages.pkg_any_core_c0 += p->pkg_any_core_c0;
 983                 average.packages.pkg_any_gfxe_c0 += p->pkg_any_gfxe_c0;
 984                 average.packages.pkg_both_core_gfxe_c0 += p->pkg_both_core_gfxe_c0;
 985         }
 986
 987         average.packages.pc2 += p->pc2;
 988         if (do_pc3)
 989                 average.packages.pc3 += p->pc3;
 990         if (do_pc6)
 991                 average.packages.pc6 += p->pc6;
 992         if (do_pc7)
 993                 average.packages.pc7 += p->pc7;
 994         average.packages.pc8 += p->pc8;
 995         average.packages.pc9 += p->pc9;
 996         average.packages.pc10 += p->pc10;
 997
 998         average.packages.energy_pkg += p->energy_pkg;
 999         average.packages.energy_dram += p->energy_dram;
1000         average.packages.energy_cores += p->energy_cores;
1001         average.packages.energy_gfx += p->energy_gfx;
1002
1003         average.packages.gfx_rc6_ms = p->gfx_rc6_ms;
1004         average.packages.gfx_mhz = p->gfx_mhz;
1005
1006         average.packages.pkg_temp_c = MAX(average.packages.pkg_temp_c, p->pkg_temp_c);
1007
1008         average.packages.rapl_pkg_perf_status += p->rapl_pkg_perf_status;
1009         average.packages.rapl_dram_perf_status += p->rapl_dram_perf_status;
1010         return 0;
1011 }
1012 /*
1013  * sum the counters for all cpus in the system
1014  * compute the weighted average
1015  */
1016 void compute_average(struct thread_data *t, struct core_data *c,
1017         struct pkg_data *p)
1018 {
1019         clear_counters(&average.threads, &average.cores, &average.packages);
1020
1021         for_all_cpus(sum_counters, t, c, p);
1022
1023         average.threads.tsc /= topo.num_cpus;
1024         average.threads.aperf /= topo.num_cpus;
1025         average.threads.mperf /= topo.num_cpus;
1026         average.threads.c1 /= topo.num_cpus;
1027
1028         average.threads.extra_delta32 /= topo.num_cpus;
1029         average.threads.extra_delta32 &= 0xFFFFFFFF;
1030
1031         average.threads.extra_delta64 /= topo.num_cpus;
1032
1033         average.cores.c3 /= topo.num_cores;
1034         average.cores.c6 /= topo.num_cores;
1035         average.cores.c7 /= topo.num_cores;
1036
1037         if (do_skl_residency) {
1038                 average.packages.pkg_wtd_core_c0 /= topo.num_packages;
1039                 average.packages.pkg_any_core_c0 /= topo.num_packages;
1040                 average.packages.pkg_any_gfxe_c0 /= topo.num_packages;
1041                 average.packages.pkg_both_core_gfxe_c0 /= topo.num_packages;
1042         }
1043
1044         average.packages.pc2 /= topo.num_packages;
1045         if (do_pc3)
1046                 average.packages.pc3 /= topo.num_packages;
1047         if (do_pc6)
1048                 average.packages.pc6 /= topo.num_packages;
1049         if (do_pc7)
1050                 average.packages.pc7 /= topo.num_packages;
1051
1052         average.packages.pc8 /= topo.num_packages;
1053         average.packages.pc9 /= topo.num_packages;
1054         average.packages.pc10 /= topo.num_packages;
1055 }
1056
1057 static unsigned long long rdtsc(void)
1058 {
1059         unsigned int low, high;
1060
1061         asm volatile("rdtsc" : "=a" (low), "=d" (high));
1062
1063         return low | ((unsigned long long)high) << 32;
1064 }
1065
1066 /*
1067  * get_counters(...)
1068  * migrate to cpu
1069  * acquire and record local counters for that cpu
1070  */
1071 int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1072 {
1073         int cpu = t->cpu_id;
1074         unsigned long long msr;
1075         int aperf_mperf_retry_count = 0;
1076
1077         if (cpu_migrate(cpu)) {
1078                 fprintf(outf, "Could not migrate to CPU %d\n", cpu);
1079                 return -1;
1080         }
1081
1082 retry:
1083         t->tsc = rdtsc();       /* we are running on local CPU of interest */
1084
1085         if (has_aperf) {
1086                 unsigned long long tsc_before, tsc_between, tsc_after, aperf_time, mperf_time;
1087
1088                 /*
1089                  * The TSC, APERF and MPERF must be read together for
1090                  * APERF/MPERF and MPERF/TSC to give accurate results.
1091                  *
1092                  * Unfortunately, APERF and MPERF are read by
1093                  * individual system call, so delays may occur
1094                  * between them.  If the time to read them
1095                  * varies by a large amount, we re-read them.
1096                  */
1097
1098                 /*
1099                  * This initial dummy APERF read has been seen to
1100                  * reduce jitter in the subsequent reads.
1101                  */
1102
1103                 if (get_msr(cpu, MSR_IA32_APERF, &t->aperf))
1104                         return -3;
1105
1106                 t->tsc = rdtsc();       /* re-read close to APERF */
1107
1108                 tsc_before = t->tsc;
1109
1110                 if (get_msr(cpu, MSR_IA32_APERF, &t->aperf))
1111                         return -3;
1112
1113                 tsc_between = rdtsc();
1114
1115                 if (get_msr(cpu, MSR_IA32_MPERF, &t->mperf))
1116                         return -4;
1117
1118                 tsc_after = rdtsc();
1119
1120                 aperf_time = tsc_between - tsc_before;
1121                 mperf_time = tsc_after - tsc_between;
1122
1123                 /*
1124                  * If the system call latency to read APERF and MPERF
1125                  * differ by more than 2x, then try again.
1126                  */
1127                 if ((aperf_time > (2 * mperf_time)) || (mperf_time > (2 * aperf_time))) {
1128                         aperf_mperf_retry_count++;
1129                         if (aperf_mperf_retry_count < 5)
1130                                 goto retry;
1131                         else
1132                                 warnx("cpu%d jitter %lld %lld",
1133                                         cpu, aperf_time, mperf_time);
1134                 }
1135                 aperf_mperf_retry_count = 0;
1136
1137                 t->aperf = t->aperf * aperf_mperf_multiplier;
1138                 t->mperf = t->mperf * aperf_mperf_multiplier;
1139         }
1140
1141         if (do_irq)
1142                 t->irq_count = irqs_per_cpu[cpu];
1143         if (do_smi) {
1144                 if (get_msr(cpu, MSR_SMI_COUNT, &msr))
1145                         return -5;
1146                 t->smi_count = msr & 0xFFFFFFFF;
1147         }
1148         if (extra_delta_offset32) {
1149                 if (get_msr(cpu, extra_delta_offset32, &msr))
1150                         return -5;
1151                 t->extra_delta32 = msr & 0xFFFFFFFF;
1152         }
1153
1154         if (extra_delta_offset64)
1155                 if (get_msr(cpu, extra_delta_offset64, &t->extra_delta64))
1156                         return -5;
1157
1158         if (extra_msr_offset32) {
1159                 if (get_msr(cpu, extra_msr_offset32, &msr))
1160                         return -5;
1161                 t->extra_msr32 = msr & 0xFFFFFFFF;
1162         }
1163
1164         if (extra_msr_offset64)
1165                 if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64))
1166                         return -5;
1167
1168         if (use_c1_residency_msr) {
1169                 if (get_msr(cpu, MSR_CORE_C1_RES, &t->c1))
1170                         return -6;
1171         }
1172
1173         /* collect core counters only for 1st thread in core */
1174         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
1175                 return 0;
1176
1177         if (do_nhm_cstates && !do_slm_cstates && !do_knl_cstates) {
1178                 if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3))
1179                         return -6;
1180         }
1181
1182         if (do_nhm_cstates && !do_knl_cstates) {
1183                 if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6))
1184                         return -7;
1185         } else if (do_knl_cstates) {
1186                 if (get_msr(cpu, MSR_KNL_CORE_C6_RESIDENCY, &c->c6))
1187                         return -7;
1188         }
1189
1190         if (do_snb_cstates)
1191                 if (get_msr(cpu, MSR_CORE_C7_RESIDENCY, &c->c7))
1192                         return -8;
1193
1194         if (do_dts) {
1195                 if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
1196                         return -9;
1197                 c->core_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
1198         }
1199
1200
1201         /* collect package counters only for 1st core in package */
1202         if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
1203                 return 0;
1204
1205         if (do_skl_residency) {
1206                 if (get_msr(cpu, MSR_PKG_WEIGHTED_CORE_C0_RES, &p->pkg_wtd_core_c0))
1207                         return -10;
1208                 if (get_msr(cpu, MSR_PKG_ANY_CORE_C0_RES, &p->pkg_any_core_c0))
1209                         return -11;
1210                 if (get_msr(cpu, MSR_PKG_ANY_GFXE_C0_RES, &p->pkg_any_gfxe_c0))
1211                         return -12;
1212                 if (get_msr(cpu, MSR_PKG_BOTH_CORE_GFXE_C0_RES, &p->pkg_both_core_gfxe_c0))
1213                         return -13;
1214         }
1215         if (do_pc3)
1216                 if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3))
1217                         return -9;
1218         if (do_pc6)
1219                 if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6))
1220                         return -10;
1221         if (do_pc2)
1222                 if (get_msr(cpu, MSR_PKG_C2_RESIDENCY, &p->pc2))
1223                         return -11;
1224         if (do_pc7)
1225                 if (get_msr(cpu, MSR_PKG_C7_RESIDENCY, &p->pc7))
1226                         return -12;
1227         if (do_c8_c9_c10) {
1228                 if (get_msr(cpu, MSR_PKG_C8_RESIDENCY, &p->pc8))
1229                         return -13;
1230                 if (get_msr(cpu, MSR_PKG_C9_RESIDENCY, &p->pc9))
1231                         return -13;
1232                 if (get_msr(cpu, MSR_PKG_C10_RESIDENCY, &p->pc10))
1233                         return -13;
1234         }
1235         if (do_rapl & RAPL_PKG) {
1236                 if (get_msr(cpu, MSR_PKG_ENERGY_STATUS, &msr))
1237                         return -13;
1238                 p->energy_pkg = msr & 0xFFFFFFFF;
1239         }
1240         if (do_rapl & RAPL_CORES) {
1241                 if (get_msr(cpu, MSR_PP0_ENERGY_STATUS, &msr))
1242                         return -14;
1243                 p->energy_cores = msr & 0xFFFFFFFF;
1244         }
1245         if (do_rapl & RAPL_DRAM) {
1246                 if (get_msr(cpu, MSR_DRAM_ENERGY_STATUS, &msr))
1247                         return -15;
1248                 p->energy_dram = msr & 0xFFFFFFFF;
1249         }
1250         if (do_rapl & RAPL_GFX) {
1251                 if (get_msr(cpu, MSR_PP1_ENERGY_STATUS, &msr))
1252                         return -16;
1253                 p->energy_gfx = msr & 0xFFFFFFFF;
1254         }
1255         if (do_rapl & RAPL_PKG_PERF_STATUS) {
1256                 if (get_msr(cpu, MSR_PKG_PERF_STATUS, &msr))
1257                         return -16;
1258                 p->rapl_pkg_perf_status = msr & 0xFFFFFFFF;
1259         }
1260         if (do_rapl & RAPL_DRAM_PERF_STATUS) {
1261                 if (get_msr(cpu, MSR_DRAM_PERF_STATUS, &msr))
1262                         return -16;
1263                 p->rapl_dram_perf_status = msr & 0xFFFFFFFF;
1264         }
1265         if (do_ptm) {
1266                 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
1267                         return -17;
1268                 p->pkg_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
1269         }
1270
1271         if (do_gfx_rc6_ms)
1272                 p->gfx_rc6_ms = gfx_cur_rc6_ms;
1273
1274         if (do_gfx_mhz)
1275                 p->gfx_mhz = gfx_cur_mhz;
1276
1277         return 0;
1278 }
1279
1280 /*
1281  * MSR_PKG_CST_CONFIG_CONTROL decoding for pkg_cstate_limit:
1282  * If you change the values, note they are used both in comparisons
1283  * (>= PCL__7) and to index pkg_cstate_limit_strings[].
1284  */
1285
1286 #define PCLUKN 0 /* Unknown */
1287 #define PCLRSV 1 /* Reserved */
1288 #define PCL__0 2 /* PC0 */
1289 #define PCL__1 3 /* PC1 */
1290 #define PCL__2 4 /* PC2 */
1291 #define PCL__3 5 /* PC3 */
1292 #define PCL__4 6 /* PC4 */
1293 #define PCL__6 7 /* PC6 */
1294 #define PCL_6N 8 /* PC6 No Retention */
1295 #define PCL_6R 9 /* PC6 Retention */
1296 #define PCL__7 10 /* PC7 */
1297 #define PCL_7S 11 /* PC7 Shrink */
1298 #define PCL__8 12 /* PC8 */
1299 #define PCL__9 13 /* PC9 */
1300 #define PCLUNL 14 /* Unlimited */
1301
1302 int pkg_cstate_limit = PCLUKN;
1303 char *pkg_cstate_limit_strings[] = { "reserved", "unknown", "pc0", "pc1", "pc2",
1304         "pc3", "pc4", "pc6", "pc6n", "pc6r", "pc7", "pc7s", "pc8", "pc9", "unlimited"};
1305
1306 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};
1307 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};
1308 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};
1309 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};
1310 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};
1311 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};
1312 int bxt_pkg_cstate_limits[16] = {PCL__0, PCL__2, PCLUNL, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
1313
1314
1315 static void
1316 calculate_tsc_tweak()
1317 {
1318         tsc_tweak = base_hz / tsc_hz;
1319 }
1320
1321 static void
1322 dump_nhm_platform_info(void)
1323 {
1324         unsigned long long msr;
1325         unsigned int ratio;
1326
1327         get_msr(base_cpu, MSR_PLATFORM_INFO, &msr);
1328
1329         fprintf(outf, "cpu%d: MSR_PLATFORM_INFO: 0x%08llx\n", base_cpu, msr);
1330
1331         ratio = (msr >> 40) & 0xFF;
1332         fprintf(outf, "%d * %.0f = %.0f MHz max efficiency frequency\n",
1333                 ratio, bclk, ratio * bclk);
1334
1335         ratio = (msr >> 8) & 0xFF;
1336         fprintf(outf, "%d * %.0f = %.0f MHz base frequency\n",
1337                 ratio, bclk, ratio * bclk);
1338
1339         get_msr(base_cpu, MSR_IA32_POWER_CTL, &msr);
1340         fprintf(outf, "cpu%d: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n",
1341                 base_cpu, msr, msr & 0x2 ? "EN" : "DIS");
1342
1343         return;
1344 }
1345
1346 static void
1347 dump_hsw_turbo_ratio_limits(void)
1348 {
1349         unsigned long long msr;
1350         unsigned int ratio;
1351
1352         get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT2, &msr);
1353
1354         fprintf(outf, "cpu%d: MSR_TURBO_RATIO_LIMIT2: 0x%08llx\n", base_cpu, msr);
1355
1356         ratio = (msr >> 8) & 0xFF;
1357         if (ratio)
1358                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 18 active cores\n",
1359                         ratio, bclk, ratio * bclk);
1360
1361         ratio = (msr >> 0) & 0xFF;
1362         if (ratio)
1363                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 17 active cores\n",
1364                         ratio, bclk, ratio * bclk);
1365         return;
1366 }
1367
1368 static void
1369 dump_ivt_turbo_ratio_limits(void)
1370 {
1371         unsigned long long msr;
1372         unsigned int ratio;
1373
1374         get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT1, &msr);
1375
1376         fprintf(outf, "cpu%d: MSR_TURBO_RATIO_LIMIT1: 0x%08llx\n", base_cpu, msr);
1377
1378         ratio = (msr >> 56) & 0xFF;
1379         if (ratio)
1380                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 16 active cores\n",
1381                         ratio, bclk, ratio * bclk);
1382
1383         ratio = (msr >> 48) & 0xFF;
1384         if (ratio)
1385                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 15 active cores\n",
1386                         ratio, bclk, ratio * bclk);
1387
1388         ratio = (msr >> 40) & 0xFF;
1389         if (ratio)
1390                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 14 active cores\n",
1391                         ratio, bclk, ratio * bclk);
1392
1393         ratio = (msr >> 32) & 0xFF;
1394         if (ratio)
1395                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 13 active cores\n",
1396                         ratio, bclk, ratio * bclk);
1397
1398         ratio = (msr >> 24) & 0xFF;
1399         if (ratio)
1400                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 12 active cores\n",
1401                         ratio, bclk, ratio * bclk);
1402
1403         ratio = (msr >> 16) & 0xFF;
1404         if (ratio)
1405                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 11 active cores\n",
1406                         ratio, bclk, ratio * bclk);
1407
1408         ratio = (msr >> 8) & 0xFF;
1409         if (ratio)
1410                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 10 active cores\n",
1411                         ratio, bclk, ratio * bclk);
1412
1413         ratio = (msr >> 0) & 0xFF;
1414         if (ratio)
1415                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 9 active cores\n",
1416                         ratio, bclk, ratio * bclk);
1417         return;
1418 }
1419
1420 static void
1421 dump_nhm_turbo_ratio_limits(void)
1422 {
1423         unsigned long long msr;
1424         unsigned int ratio;
1425
1426         get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT, &msr);
1427
1428         fprintf(outf, "cpu%d: MSR_TURBO_RATIO_LIMIT: 0x%08llx\n", base_cpu, msr);
1429
1430         ratio = (msr >> 56) & 0xFF;
1431         if (ratio)
1432                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 8 active cores\n",
1433                         ratio, bclk, ratio * bclk);
1434
1435         ratio = (msr >> 48) & 0xFF;
1436         if (ratio)
1437                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 7 active cores\n",
1438                         ratio, bclk, ratio * bclk);
1439
1440         ratio = (msr >> 40) & 0xFF;
1441         if (ratio)
1442                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 6 active cores\n",
1443                         ratio, bclk, ratio * bclk);
1444
1445         ratio = (msr >> 32) & 0xFF;
1446         if (ratio)
1447                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 5 active cores\n",
1448                         ratio, bclk, ratio * bclk);
1449
1450         ratio = (msr >> 24) & 0xFF;
1451         if (ratio)
1452                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 4 active cores\n",
1453                         ratio, bclk, ratio * bclk);
1454
1455         ratio = (msr >> 16) & 0xFF;
1456         if (ratio)
1457                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 3 active cores\n",
1458                         ratio, bclk, ratio * bclk);
1459
1460         ratio = (msr >> 8) & 0xFF;
1461         if (ratio)
1462                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 2 active cores\n",
1463                         ratio, bclk, ratio * bclk);
1464
1465         ratio = (msr >> 0) & 0xFF;
1466         if (ratio)
1467                 fprintf(outf, "%d * %.0f = %.0f MHz max turbo 1 active cores\n",
1468                         ratio, bclk, ratio * bclk);
1469         return;
1470 }
1471
1472 static void
1473 dump_knl_turbo_ratio_limits(void)
1474 {
1475         const unsigned int buckets_no = 7;
1476
1477         unsigned long long msr;
1478         int delta_cores, delta_ratio;
1479         int i, b_nr;
1480         unsigned int cores[buckets_no];
1481         unsigned int ratio[buckets_no];
1482
1483         get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT, &msr);
1484
1485         fprintf(outf, "cpu%d: MSR_TURBO_RATIO_LIMIT: 0x%08llx\n",
1486                 base_cpu, msr);
1487
1488         /**
1489          * Turbo encoding in KNL is as follows:
1490          * [0] -- Reserved
1491          * [7:1] -- Base value of number of active cores of bucket 1.
1492          * [15:8] -- Base value of freq ratio of bucket 1.
1493          * [20:16] -- +ve delta of number of active cores of bucket 2.
1494          * i.e. active cores of bucket 2 =
1495          * active cores of bucket 1 + delta
1496          * [23:21] -- Negative delta of freq ratio of bucket 2.
1497          * i.e. freq ratio of bucket 2 =
1498          * freq ratio of bucket 1 - delta
1499          * [28:24]-- +ve delta of number of active cores of bucket 3.
1500          * [31:29]-- -ve delta of freq ratio of bucket 3.
1501          * [36:32]-- +ve delta of number of active cores of bucket 4.
1502          * [39:37]-- -ve delta of freq ratio of bucket 4.
1503          * [44:40]-- +ve delta of number of active cores of bucket 5.
1504          * [47:45]-- -ve delta of freq ratio of bucket 5.
1505          * [52:48]-- +ve delta of number of active cores of bucket 6.
1506          * [55:53]-- -ve delta of freq ratio of bucket 6.
1507          * [60:56]-- +ve delta of number of active cores of bucket 7.
1508          * [63:61]-- -ve delta of freq ratio of bucket 7.
1509          */
1510
1511         b_nr = 0;
1512         cores[b_nr] = (msr & 0xFF) >> 1;
1513         ratio[b_nr] = (msr >> 8) & 0xFF;
1514
1515         for (i = 16; i < 64; i += 8) {
1516                 delta_cores = (msr >> i) & 0x1F;
1517                 delta_ratio = (msr >> (i + 5)) & 0x7;
1518
1519                 cores[b_nr + 1] = cores[b_nr] + delta_cores;
1520                 ratio[b_nr + 1] = ratio[b_nr] - delta_ratio;
1521                 b_nr++;
1522         }
1523
1524         for (i = buckets_no - 1; i >= 0; i--)
1525                 if (i > 0 ? ratio[i] != ratio[i - 1] : 1)
1526                         fprintf(outf,
1527                                 "%d * %.0f = %.0f MHz max turbo %d active cores\n",
1528                                 ratio[i], bclk, ratio[i] * bclk, cores[i]);
1529 }
1530
1531 static void
1532 dump_nhm_cst_cfg(void)
1533 {
1534         unsigned long long msr;
1535
1536         get_msr(base_cpu, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);
1537
1538 #define SNB_C1_AUTO_UNDEMOTE              (1UL << 27)
1539 #define SNB_C3_AUTO_UNDEMOTE              (1UL << 28)
1540
1541         fprintf(outf, "cpu%d: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", base_cpu, msr);
1542
1543         fprintf(outf, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: %s)\n",
1544                 (msr & SNB_C3_AUTO_UNDEMOTE) ? "UNdemote-C3, " : "",
1545                 (msr & SNB_C1_AUTO_UNDEMOTE) ? "UNdemote-C1, " : "",
1546                 (msr & NHM_C3_AUTO_DEMOTE) ? "demote-C3, " : "",
1547                 (msr & NHM_C1_AUTO_DEMOTE) ? "demote-C1, " : "",
1548                 (msr & (1 << 15)) ? "" : "UN",
1549                 (unsigned int)msr & 0xF,
1550                 pkg_cstate_limit_strings[pkg_cstate_limit]);
1551         return;
1552 }
1553
1554 static void
1555 dump_config_tdp(void)
1556 {
1557         unsigned long long msr;
1558
1559         get_msr(base_cpu, MSR_CONFIG_TDP_NOMINAL, &msr);
1560         fprintf(outf, "cpu%d: MSR_CONFIG_TDP_NOMINAL: 0x%08llx", base_cpu, msr);
1561         fprintf(outf, " (base_ratio=%d)\n", (unsigned int)msr & 0xFF);
1562
1563         get_msr(base_cpu, MSR_CONFIG_TDP_LEVEL_1, &msr);
1564         fprintf(outf, "cpu%d: MSR_CONFIG_TDP_LEVEL_1: 0x%08llx (", base_cpu, msr);
1565         if (msr) {
1566                 fprintf(outf, "PKG_MIN_PWR_LVL1=%d ", (unsigned int)(msr >> 48) & 0x7FFF);
1567                 fprintf(outf, "PKG_MAX_PWR_LVL1=%d ", (unsigned int)(msr >> 32) & 0x7FFF);
1568                 fprintf(outf, "LVL1_RATIO=%d ", (unsigned int)(msr >> 16) & 0xFF);
1569                 fprintf(outf, "PKG_TDP_LVL1=%d", (unsigned int)(msr) & 0x7FFF);
1570         }
1571         fprintf(outf, ")\n");
1572
1573         get_msr(base_cpu, MSR_CONFIG_TDP_LEVEL_2, &msr);
1574         fprintf(outf, "cpu%d: MSR_CONFIG_TDP_LEVEL_2: 0x%08llx (", base_cpu, msr);
1575         if (msr) {
1576                 fprintf(outf, "PKG_MIN_PWR_LVL2=%d ", (unsigned int)(msr >> 48) & 0x7FFF);
1577                 fprintf(outf, "PKG_MAX_PWR_LVL2=%d ", (unsigned int)(msr >> 32) & 0x7FFF);
1578                 fprintf(outf, "LVL2_RATIO=%d ", (unsigned int)(msr >> 16) & 0xFF);
1579                 fprintf(outf, "PKG_TDP_LVL2=%d", (unsigned int)(msr) & 0x7FFF);
1580         }
1581         fprintf(outf, ")\n");
1582
1583         get_msr(base_cpu, MSR_CONFIG_TDP_CONTROL, &msr);
1584         fprintf(outf, "cpu%d: MSR_CONFIG_TDP_CONTROL: 0x%08llx (", base_cpu, msr);
1585         if ((msr) & 0x3)
1586                 fprintf(outf, "TDP_LEVEL=%d ", (unsigned int)(msr) & 0x3);
1587         fprintf(outf, " lock=%d", (unsigned int)(msr >> 31) & 1);
1588         fprintf(outf, ")\n");
1589
1590         get_msr(base_cpu, MSR_TURBO_ACTIVATION_RATIO, &msr);
1591         fprintf(outf, "cpu%d: MSR_TURBO_ACTIVATION_RATIO: 0x%08llx (", base_cpu, msr);
1592         fprintf(outf, "MAX_NON_TURBO_RATIO=%d", (unsigned int)(msr) & 0xFF);
1593         fprintf(outf, " lock=%d", (unsigned int)(msr >> 31) & 1);
1594         fprintf(outf, ")\n");
1595 }
1596
1597 unsigned int irtl_time_units[] = {1, 32, 1024, 32768, 1048576, 33554432, 0, 0 };
1598
1599 void print_irtl(void)
1600 {
1601         unsigned long long msr;
1602
1603         get_msr(base_cpu, MSR_PKGC3_IRTL, &msr);
1604         fprintf(outf, "cpu%d: MSR_PKGC3_IRTL: 0x%08llx (", base_cpu, msr);
1605         fprintf(outf, "%svalid, %lld ns)\n", msr & (1 << 15) ? "" : "NOT",
1606                 (msr & 0x3FF) * irtl_time_units[(msr >> 10) & 0x3]);
1607
1608         get_msr(base_cpu, MSR_PKGC6_IRTL, &msr);
1609         fprintf(outf, "cpu%d: MSR_PKGC6_IRTL: 0x%08llx (", base_cpu, msr);
1610         fprintf(outf, "%svalid, %lld ns)\n", msr & (1 << 15) ? "" : "NOT",
1611                 (msr & 0x3FF) * irtl_time_units[(msr >> 10) & 0x3]);
1612
1613         get_msr(base_cpu, MSR_PKGC7_IRTL, &msr);
1614         fprintf(outf, "cpu%d: MSR_PKGC7_IRTL: 0x%08llx (", base_cpu, msr);
1615         fprintf(outf, "%svalid, %lld ns)\n", msr & (1 << 15) ? "" : "NOT",
1616                 (msr & 0x3FF) * irtl_time_units[(msr >> 10) & 0x3]);
1617
1618         if (!do_irtl_hsw)
1619                 return;
1620
1621         get_msr(base_cpu, MSR_PKGC8_IRTL, &msr);
1622         fprintf(outf, "cpu%d: MSR_PKGC8_IRTL: 0x%08llx (", base_cpu, msr);
1623         fprintf(outf, "%svalid, %lld ns)\n", msr & (1 << 15) ? "" : "NOT",
1624                 (msr & 0x3FF) * irtl_time_units[(msr >> 10) & 0x3]);
1625
1626         get_msr(base_cpu, MSR_PKGC9_IRTL, &msr);
1627         fprintf(outf, "cpu%d: MSR_PKGC9_IRTL: 0x%08llx (", base_cpu, msr);
1628         fprintf(outf, "%svalid, %lld ns)\n", msr & (1 << 15) ? "" : "NOT",
1629                 (msr & 0x3FF) * irtl_time_units[(msr >> 10) & 0x3]);
1630
1631         get_msr(base_cpu, MSR_PKGC10_IRTL, &msr);
1632         fprintf(outf, "cpu%d: MSR_PKGC10_IRTL: 0x%08llx (", base_cpu, msr);
1633         fprintf(outf, "%svalid, %lld ns)\n", msr & (1 << 15) ? "" : "NOT",
1634                 (msr & 0x3FF) * irtl_time_units[(msr >> 10) & 0x3]);
1635
1636 }
1637 void free_fd_percpu(void)
1638 {
1639         int i;
1640
1641         for (i = 0; i < topo.max_cpu_num; ++i) {
1642                 if (fd_percpu[i] != 0)
1643                         close(fd_percpu[i]);
1644         }
1645
1646         free(fd_percpu);
1647 }
1648
1649 void free_all_buffers(void)
1650 {
1651         CPU_FREE(cpu_present_set);
1652         cpu_present_set = NULL;
1653         cpu_present_setsize = 0;
1654
1655         CPU_FREE(cpu_affinity_set);
1656         cpu_affinity_set = NULL;
1657         cpu_affinity_setsize = 0;
1658
1659         free(thread_even);
1660         free(core_even);
1661         free(package_even);
1662
1663         thread_even = NULL;
1664         core_even = NULL;
1665         package_even = NULL;
1666
1667         free(thread_odd);
1668         free(core_odd);
1669         free(package_odd);
1670
1671         thread_odd = NULL;
1672         core_odd = NULL;
1673         package_odd = NULL;
1674
1675         free(output_buffer);
1676         output_buffer = NULL;
1677         outp = NULL;
1678
1679         free_fd_percpu();
1680
1681         free(irq_column_2_cpu);
1682         free(irqs_per_cpu);
1683 }
1684
1685 /*
1686  * Open a file, and exit on failure
1687  */
1688 FILE *fopen_or_die(const char *path, const char *mode)
1689 {
1690         FILE *filep = fopen(path, mode);
1691         if (!filep)
1692                 err(1, "%s: open failed", path);
1693         return filep;
1694 }
1695
1696 /*
1697  * Parse a file containing a single int.
1698  */
1699 int parse_int_file(const char *fmt, ...)
1700 {
1701         va_list args;
1702         char path[PATH_MAX];
1703         FILE *filep;
1704         int value;
1705
1706         va_start(args, fmt);
1707         vsnprintf(path, sizeof(path), fmt, args);
1708         va_end(args);
1709         filep = fopen_or_die(path, "r");
1710         if (fscanf(filep, "%d", &value) != 1)
1711                 err(1, "%s: failed to parse number from file", path);
1712         fclose(filep);
1713         return value;
1714 }
1715
1716 /*
1717  * get_cpu_position_in_core(cpu)
1718  * return the position of the CPU among its HT siblings in the core
1719  * return -1 if the sibling is not in list
1720  */
1721 int get_cpu_position_in_core(int cpu)
1722 {
1723         char path[64];
1724         FILE *filep;
1725         int this_cpu;
1726         char character;
1727         int i;
1728
1729         sprintf(path,
1730                 "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list",
1731                 cpu);
1732         filep = fopen(path, "r");
1733         if (filep == NULL) {
1734                 perror(path);
1735                 exit(1);
1736         }
1737
1738         for (i = 0; i < topo.num_threads_per_core; i++) {
1739                 fscanf(filep, "%d", &this_cpu);
1740                 if (this_cpu == cpu) {
1741                         fclose(filep);
1742                         return i;
1743                 }
1744
1745                 /* Account for no separator after last thread*/
1746                 if (i != (topo.num_threads_per_core - 1))
1747                         fscanf(filep, "%c", &character);
1748         }
1749
1750         fclose(filep);
1751         return -1;
1752 }
1753
1754 /*
1755  * cpu_is_first_core_in_package(cpu)
1756  * return 1 if given CPU is 1st core in package
1757  */
1758 int cpu_is_first_core_in_package(int cpu)
1759 {
1760         return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu);
1761 }
1762
1763 int get_physical_package_id(int cpu)
1764 {
1765         return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu);
1766 }
1767
1768 int get_core_id(int cpu)
1769 {
1770         return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_id", cpu);
1771 }
1772
1773 int get_num_ht_siblings(int cpu)
1774 {
1775         char path[80];
1776         FILE *filep;
1777         int sib1;
1778         int matches = 0;
1779         char character;
1780         char str[100];
1781         char *ch;
1782
1783         sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu);
1784         filep = fopen_or_die(path, "r");
1785
1786         /*
1787          * file format:
1788          * A ',' separated or '-' separated set of numbers
1789          * (eg 1-2 or 1,3,4,5)
1790          */
1791         fscanf(filep, "%d%c\n", &sib1, &character);
1792         fseek(filep, 0, SEEK_SET);
1793         fgets(str, 100, filep);
1794         ch = strchr(str, character);
1795         while (ch != NULL) {
1796                 matches++;
1797                 ch = strchr(ch+1, character);
1798         }
1799
1800         fclose(filep);
1801         return matches+1;
1802 }
1803
1804 /*
1805  * run func(thread, core, package) in topology order
1806  * skip non-present cpus
1807  */
1808
1809 int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *,
1810         struct pkg_data *, struct thread_data *, struct core_data *,
1811         struct pkg_data *), struct thread_data *thread_base,
1812         struct core_data *core_base, struct pkg_data *pkg_base,
1813         struct thread_data *thread_base2, struct core_data *core_base2,
1814         struct pkg_data *pkg_base2)
1815 {
1816         int retval, pkg_no, core_no, thread_no;
1817
1818         for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
1819                 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
1820                         for (thread_no = 0; thread_no <
1821                                 topo.num_threads_per_core; ++thread_no) {
1822                                 struct thread_data *t, *t2;
1823                                 struct core_data *c, *c2;
1824                                 struct pkg_data *p, *p2;
1825
1826                                 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
1827
1828                                 if (cpu_is_not_present(t->cpu_id))
1829                                         continue;
1830
1831                                 t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no);
1832
1833                                 c = GET_CORE(core_base, core_no, pkg_no);
1834                                 c2 = GET_CORE(core_base2, core_no, pkg_no);
1835
1836                                 p = GET_PKG(pkg_base, pkg_no);
1837                                 p2 = GET_PKG(pkg_base2, pkg_no);
1838
1839                                 retval = func(t, c, p, t2, c2, p2);
1840                                 if (retval)
1841                                         return retval;
1842                         }
1843                 }
1844         }
1845         return 0;
1846 }
1847
1848 /*
1849  * run func(cpu) on every cpu in /proc/stat
1850  * return max_cpu number
1851  */
1852 int for_all_proc_cpus(int (func)(int))
1853 {
1854         FILE *fp;
1855         int cpu_num;
1856         int retval;
1857
1858         fp = fopen_or_die(proc_stat, "r");
1859
1860         retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n");
1861         if (retval != 0)
1862                 err(1, "%s: failed to parse format", proc_stat);
1863
1864         while (1) {
1865                 retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num);
1866                 if (retval != 1)
1867                         break;
1868
1869                 retval = func(cpu_num);
1870                 if (retval) {
1871                         fclose(fp);
1872                         return(retval);
1873                 }
1874         }
1875         fclose(fp);
1876         return 0;
1877 }
1878
1879 void re_initialize(void)
1880 {
1881         free_all_buffers();
1882         setup_all_buffers();
1883         printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus);
1884 }
1885
1886
1887 /*
1888  * count_cpus()
1889  * remember the last one seen, it will be the max
1890  */
1891 int count_cpus(int cpu)
1892 {
1893         if (topo.max_cpu_num < cpu)
1894                 topo.max_cpu_num = cpu;
1895
1896         topo.num_cpus += 1;
1897         return 0;
1898 }
1899 int mark_cpu_present(int cpu)
1900 {
1901         CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set);
1902         return 0;
1903 }
1904
1905 /*
1906  * snapshot_proc_interrupts()
1907  *
1908  * read and record summary of /proc/interrupts
1909  *
1910  * return 1 if config change requires a restart, else return 0
1911  */
1912 int snapshot_proc_interrupts(void)
1913 {
1914         static FILE *fp;
1915         int column, retval;
1916
1917         if (fp == NULL)
1918                 fp = fopen_or_die("/proc/interrupts", "r");
1919         else
1920                 rewind(fp);
1921
1922         /* read 1st line of /proc/interrupts to get cpu* name for each column */
1923         for (column = 0; column < topo.num_cpus; ++column) {
1924                 int cpu_number;
1925
1926                 retval = fscanf(fp, " CPU%d", &cpu_number);
1927                 if (retval != 1)
1928                         break;
1929
1930                 if (cpu_number > topo.max_cpu_num) {
1931                         warn("/proc/interrupts: cpu%d: > %d", cpu_number, topo.max_cpu_num);
1932                         return 1;
1933                 }
1934
1935                 irq_column_2_cpu[column] = cpu_number;
1936                 irqs_per_cpu[cpu_number] = 0;
1937         }
1938
1939         /* read /proc/interrupt count lines and sum up irqs per cpu */
1940         while (1) {
1941                 int column;
1942                 char buf[64];
1943
1944                 retval = fscanf(fp, " %s:", buf);       /* flush irq# "N:" */
1945                 if (retval != 1)
1946                         break;
1947
1948                 /* read the count per cpu */
1949                 for (column = 0; column < topo.num_cpus; ++column) {
1950
1951                         int cpu_number, irq_count;
1952
1953                         retval = fscanf(fp, " %d", &irq_count);
1954                         if (retval != 1)
1955                                 break;
1956
1957                         cpu_number = irq_column_2_cpu[column];
1958                         irqs_per_cpu[cpu_number] += irq_count;
1959
1960                 }
1961
1962                 while (getc(fp) != '\n')
1963                         ;       /* flush interrupt description */
1964
1965         }
1966         return 0;
1967 }
1968 /*
1969  * snapshot_gfx_rc6_ms()
1970  *
1971  * record snapshot of
1972  * /sys/class/drm/card0/power/rc6_residency_ms
1973  *
1974  * return 1 if config change requires a restart, else return 0
1975  */
1976 int snapshot_gfx_rc6_ms(void)
1977 {
1978         FILE *fp;
1979         int retval;
1980
1981         fp = fopen_or_die("/sys/class/drm/card0/power/rc6_residency_ms", "r");
1982
1983         retval = fscanf(fp, "%lld", &gfx_cur_rc6_ms);
1984         if (retval != 1)
1985                 err(1, "GFX rc6");
1986
1987         fclose(fp);
1988
1989         return 0;
1990 }
1991 /*
1992  * snapshot_gfx_mhz()
1993  *
1994  * record snapshot of
1995  * /sys/class/graphics/fb0/device/drm/card0/gt_cur_freq_mhz
1996  *
1997  * return 1 if config change requires a restart, else return 0
1998  */
1999 int snapshot_gfx_mhz(void)
2000 {
2001         static FILE *fp;
2002         int retval;
2003
2004         if (fp == NULL)
2005                 fp = fopen_or_die("/sys/class/graphics/fb0/device/drm/card0/gt_cur_freq_mhz", "r");
2006         else
2007                 rewind(fp);
2008
2009         retval = fscanf(fp, "%d", &gfx_cur_mhz);
2010         if (retval != 1)
2011                 err(1, "GFX MHz");
2012
2013         return 0;
2014 }
2015
2016 /*
2017  * snapshot /proc and /sys files
2018  *
2019  * return 1 if configuration restart needed, else return 0
2020  */
2021 int snapshot_proc_sysfs_files(void)
2022 {
2023         if (snapshot_proc_interrupts())
2024                 return 1;
2025
2026         if (do_gfx_rc6_ms)
2027                 snapshot_gfx_rc6_ms();
2028
2029         if (do_gfx_mhz)
2030                 snapshot_gfx_mhz();
2031
2032         return 0;
2033 }
2034
2035 void turbostat_loop()
2036 {
2037         int retval;
2038         int restarted = 0;
2039
2040 restart:
2041         restarted++;
2042
2043         snapshot_proc_sysfs_files();
2044         retval = for_all_cpus(get_counters, EVEN_COUNTERS);
2045         if (retval < -1) {
2046                 exit(retval);
2047         } else if (retval == -1) {
2048                 if (restarted > 1) {
2049                         exit(retval);
2050                 }
2051                 re_initialize();
2052                 goto restart;
2053         }
2054         restarted = 0;
2055         gettimeofday(&tv_even, (struct timezone *)NULL);
2056
2057         while (1) {
2058                 if (for_all_proc_cpus(cpu_is_not_present)) {
2059                         re_initialize();
2060                         goto restart;
2061                 }
2062                 nanosleep(&interval_ts, NULL);
2063                 if (snapshot_proc_sysfs_files())
2064                         goto restart;
2065                 retval = for_all_cpus(get_counters, ODD_COUNTERS);
2066                 if (retval < -1) {
2067                         exit(retval);
2068                 } else if (retval == -1) {
2069                         re_initialize();
2070                         goto restart;
2071                 }
2072                 gettimeofday(&tv_odd, (struct timezone *)NULL);
2073                 timersub(&tv_odd, &tv_even, &tv_delta);
2074                 for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
2075                 compute_average(EVEN_COUNTERS);
2076                 format_all_counters(EVEN_COUNTERS);
2077                 flush_output_stdout();
2078                 nanosleep(&interval_ts, NULL);
2079                 if (snapshot_proc_sysfs_files())
2080                         goto restart;
2081                 retval = for_all_cpus(get_counters, EVEN_COUNTERS);
2082                 if (retval < -1) {
2083                         exit(retval);
2084                 } else if (retval == -1) {
2085                         re_initialize();
2086                         goto restart;
2087                 }
2088                 gettimeofday(&tv_even, (struct timezone *)NULL);
2089                 timersub(&tv_even, &tv_odd, &tv_delta);
2090                 for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS);
2091                 compute_average(ODD_COUNTERS);
2092                 format_all_counters(ODD_COUNTERS);
2093                 flush_output_stdout();
2094         }
2095 }
2096
2097 void check_dev_msr()
2098 {
2099         struct stat sb;
2100         char pathname[32];
2101
2102         sprintf(pathname, "/dev/cpu/%d/msr", base_cpu);
2103         if (stat(pathname, &sb))
2104                 if (system("/sbin/modprobe msr > /dev/null 2>&1"))
2105                         err(-5, "no /dev/cpu/0/msr, Try \"# modprobe msr\" ");
2106 }
2107
2108 void check_permissions()
2109 {
2110         struct __user_cap_header_struct cap_header_data;
2111         cap_user_header_t cap_header = &cap_header_data;
2112         struct __user_cap_data_struct cap_data_data;
2113         cap_user_data_t cap_data = &cap_data_data;
2114         extern int capget(cap_user_header_t hdrp, cap_user_data_t datap);
2115         int do_exit = 0;
2116         char pathname[32];
2117
2118         /* check for CAP_SYS_RAWIO */
2119         cap_header->pid = getpid();
2120         cap_header->version = _LINUX_CAPABILITY_VERSION;
2121         if (capget(cap_header, cap_data) < 0)
2122                 err(-6, "capget(2) failed");
2123
2124         if ((cap_data->effective & (1 << CAP_SYS_RAWIO)) == 0) {
2125                 do_exit++;
2126                 warnx("capget(CAP_SYS_RAWIO) failed,"
2127                         " try \"# setcap cap_sys_rawio=ep %s\"", progname);
2128         }
2129
2130         /* test file permissions */
2131         sprintf(pathname, "/dev/cpu/%d/msr", base_cpu);
2132         if (euidaccess(pathname, R_OK)) {
2133                 do_exit++;
2134                 warn("/dev/cpu/0/msr open failed, try chown or chmod +r /dev/cpu/*/msr");
2135         }
2136
2137         /* if all else fails, thell them to be root */
2138         if (do_exit)
2139                 if (getuid() != 0)
2140                         warnx("... or simply run as root");
2141
2142         if (do_exit)
2143                 exit(-6);
2144 }
2145
2146 /*
2147  * NHM adds support for additional MSRs:
2148  *
2149  * MSR_SMI_COUNT                   0x00000034
2150  *
2151  * MSR_PLATFORM_INFO               0x000000ce
2152  * MSR_NHM_SNB_PKG_CST_CFG_CTL     0x000000e2
2153  *
2154  * MSR_PKG_C3_RESIDENCY            0x000003f8
2155  * MSR_PKG_C6_RESIDENCY            0x000003f9
2156  * MSR_CORE_C3_RESIDENCY           0x000003fc
2157  * MSR_CORE_C6_RESIDENCY           0x000003fd
2158  *
2159  * Side effect:
2160  * sets global pkg_cstate_limit to decode MSR_NHM_SNB_PKG_CST_CFG_CTL
2161  */
2162 int probe_nhm_msrs(unsigned int family, unsigned int model)
2163 {
2164         unsigned long long msr;
2165         unsigned int base_ratio;
2166         int *pkg_cstate_limits;
2167
2168         if (!genuine_intel)
2169                 return 0;
2170
2171         if (family != 6)
2172                 return 0;
2173
2174         bclk = discover_bclk(family, model);
2175
2176         switch (model) {
2177         case 0x1A:      /* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */
2178         case 0x1E:      /* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */
2179         case 0x1F:      /* Core i7 and i5 Processor - Nehalem */
2180         case 0x25:      /* Westmere Client - Clarkdale, Arrandale */
2181         case 0x2C:      /* Westmere EP - Gulftown */
2182         case 0x2E:      /* Nehalem-EX Xeon - Beckton */
2183         case 0x2F:      /* Westmere-EX Xeon - Eagleton */
2184                 pkg_cstate_limits = nhm_pkg_cstate_limits;
2185                 break;
2186         case 0x2A:      /* SNB */
2187         case 0x2D:      /* SNB Xeon */
2188         case 0x3A:      /* IVB */
2189         case 0x3E:      /* IVB Xeon */
2190                 pkg_cstate_limits = snb_pkg_cstate_limits;
2191                 break;
2192         case 0x3C:      /* HSW */
2193         case 0x3F:      /* HSX */
2194         case 0x45:      /* HSW */
2195         case 0x46:      /* HSW */
2196         case 0x3D:      /* BDW */
2197         case 0x47:      /* BDW */
2198         case 0x4F:      /* BDX */
2199         case 0x56:      /* BDX-DE */
2200         case 0x4E:      /* SKL */
2201         case 0x5E:      /* SKL */
2202         case 0x8E:      /* KBL */
2203         case 0x9E:      /* KBL */
2204         case 0x55:      /* SKX */
2205                 pkg_cstate_limits = hsw_pkg_cstate_limits;
2206                 break;
2207         case 0x37:      /* BYT */
2208         case 0x4D:      /* AVN */
2209                 pkg_cstate_limits = slv_pkg_cstate_limits;
2210                 break;
2211         case 0x4C:      /* AMT */
2212                 pkg_cstate_limits = amt_pkg_cstate_limits;
2213                 break;
2214         case 0x57:      /* PHI */
2215                 pkg_cstate_limits = phi_pkg_cstate_limits;
2216                 break;
2217         case 0x5C:      /* BXT */
2218                 pkg_cstate_limits = bxt_pkg_cstate_limits;
2219                 break;
2220         default:
2221                 return 0;
2222         }
2223         get_msr(base_cpu, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);
2224         pkg_cstate_limit = pkg_cstate_limits[msr & 0xF];
2225
2226         get_msr(base_cpu, MSR_PLATFORM_INFO, &msr);
2227         base_ratio = (msr >> 8) & 0xFF;
2228
2229         base_hz = base_ratio * bclk * 1000000;
2230         has_base_hz = 1;
2231         return 1;
2232 }
2233 int has_nhm_turbo_ratio_limit(unsigned int family, unsigned int model)
2234 {
2235         switch (model) {
2236         /* Nehalem compatible, but do not include turbo-ratio limit support */
2237         case 0x2E:      /* Nehalem-EX Xeon - Beckton */
2238         case 0x2F:      /* Westmere-EX Xeon - Eagleton */
2239         case 0x57:      /* PHI - Knights Landing (different MSR definition) */
2240                 return 0;
2241         default:
2242                 return 1;
2243         }
2244 }
2245 int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model)
2246 {
2247         if (!genuine_intel)
2248                 return 0;
2249
2250         if (family != 6)
2251                 return 0;
2252
2253         switch (model) {
2254         case 0x3E:      /* IVB Xeon */
2255         case 0x3F:      /* HSW Xeon */
2256                 return 1;
2257         default:
2258                 return 0;
2259         }
2260 }
2261 int has_hsw_turbo_ratio_limit(unsigned int family, unsigned int model)
2262 {
2263         if (!genuine_intel)
2264                 return 0;
2265
2266         if (family != 6)
2267                 return 0;
2268
2269         switch (model) {
2270         case 0x3F:      /* HSW Xeon */
2271                 return 1;
2272         default:
2273                 return 0;
2274         }
2275 }
2276
2277 int has_knl_turbo_ratio_limit(unsigned int family, unsigned int model)
2278 {
2279         if (!genuine_intel)
2280                 return 0;
2281
2282         if (family != 6)
2283                 return 0;
2284
2285         switch (model) {
2286         case 0x57:      /* Knights Landing */
2287                 return 1;
2288         default:
2289                 return 0;
2290         }
2291 }
2292 int has_config_tdp(unsigned int family, unsigned int model)
2293 {
2294         if (!genuine_intel)
2295                 return 0;
2296
2297         if (family != 6)
2298                 return 0;
2299
2300         switch (model) {
2301         case 0x3A:      /* IVB */
2302         case 0x3C:      /* HSW */
2303         case 0x3F:      /* HSX */
2304         case 0x45:      /* HSW */
2305         case 0x46:      /* HSW */
2306         case 0x3D:      /* BDW */
2307         case 0x47:      /* BDW */
2308         case 0x4F:      /* BDX */
2309         case 0x56:      /* BDX-DE */
2310         case 0x4E:      /* SKL */
2311         case 0x5E:      /* SKL */
2312         case 0x8E:      /* KBL */
2313         case 0x9E:      /* KBL */
2314         case 0x55:      /* SKX */
2315
2316         case 0x57:      /* Knights Landing */
2317                 return 1;
2318         default:
2319                 return 0;
2320         }
2321 }
2322
2323 static void
2324 dump_cstate_pstate_config_info(unsigned int family, unsigned int model)
2325 {
2326         if (!do_nhm_platform_info)
2327                 return;
2328
2329         dump_nhm_platform_info();
2330
2331         if (has_hsw_turbo_ratio_limit(family, model))
2332                 dump_hsw_turbo_ratio_limits();
2333
2334         if (has_ivt_turbo_ratio_limit(family, model))
2335                 dump_ivt_turbo_ratio_limits();
2336
2337         if (has_nhm_turbo_ratio_limit(family, model))
2338                 dump_nhm_turbo_ratio_limits();
2339
2340         if (has_knl_turbo_ratio_limit(family, model))
2341                 dump_knl_turbo_ratio_limits();
2342
2343         if (has_config_tdp(family, model))
2344                 dump_config_tdp();
2345
2346         dump_nhm_cst_cfg();
2347 }
2348
2349
2350 /*
2351  * print_epb()
2352  * Decode the ENERGY_PERF_BIAS MSR
2353  */
2354 int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2355 {
2356         unsigned long long msr;
2357         char *epb_string;
2358         int cpu;
2359
2360         if (!has_epb)
2361                 return 0;
2362
2363         cpu = t->cpu_id;
2364
2365         /* EPB is per-package */
2366         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
2367                 return 0;
2368
2369         if (cpu_migrate(cpu)) {
2370                 fprintf(outf, "Could not migrate to CPU %d\n", cpu);
2371                 return -1;
2372         }
2373
2374         if (get_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, &msr))
2375                 return 0;
2376
2377         switch (msr & 0xF) {
2378         case ENERGY_PERF_BIAS_PERFORMANCE:
2379                 epb_string = "performance";
2380                 break;
2381         case ENERGY_PERF_BIAS_NORMAL:
2382                 epb_string = "balanced";
2383                 break;
2384         case ENERGY_PERF_BIAS_POWERSAVE:
2385                 epb_string = "powersave";
2386                 break;
2387         default:
2388                 epb_string = "custom";
2389                 break;
2390         }
2391         fprintf(outf, "cpu%d: MSR_IA32_ENERGY_PERF_BIAS: 0x%08llx (%s)\n", cpu, msr, epb_string);
2392
2393         return 0;
2394 }
2395 /*
2396  * print_hwp()
2397  * Decode the MSR_HWP_CAPABILITIES
2398  */
2399 int print_hwp(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2400 {
2401         unsigned long long msr;
2402         int cpu;
2403
2404         if (!has_hwp)
2405                 return 0;
2406
2407         cpu = t->cpu_id;
2408
2409         /* MSR_HWP_CAPABILITIES is per-package */
2410         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
2411                 return 0;
2412
2413         if (cpu_migrate(cpu)) {
2414                 fprintf(outf, "Could not migrate to CPU %d\n", cpu);
2415                 return -1;
2416         }
2417
2418         if (get_msr(cpu, MSR_PM_ENABLE, &msr))
2419                 return 0;
2420
2421         fprintf(outf, "cpu%d: MSR_PM_ENABLE: 0x%08llx (%sHWP)\n",
2422                 cpu, msr, (msr & (1 << 0)) ? "" : "No-");
2423
2424         /* MSR_PM_ENABLE[1] == 1 if HWP is enabled and MSRs visible */
2425         if ((msr & (1 << 0)) == 0)
2426                 return 0;
2427
2428         if (get_msr(cpu, MSR_HWP_CAPABILITIES, &msr))
2429                 return 0;
2430
2431         fprintf(outf, "cpu%d: MSR_HWP_CAPABILITIES: 0x%08llx "
2432                         "(high 0x%x guar 0x%x eff 0x%x low 0x%x)\n",
2433                         cpu, msr,
2434                         (unsigned int)HWP_HIGHEST_PERF(msr),
2435                         (unsigned int)HWP_GUARANTEED_PERF(msr),
2436                         (unsigned int)HWP_MOSTEFFICIENT_PERF(msr),
2437                         (unsigned int)HWP_LOWEST_PERF(msr));
2438
2439         if (get_msr(cpu, MSR_HWP_REQUEST, &msr))
2440                 return 0;
2441
2442         fprintf(outf, "cpu%d: MSR_HWP_REQUEST: 0x%08llx "
2443                         "(min 0x%x max 0x%x des 0x%x epp 0x%x window 0x%x pkg 0x%x)\n",
2444                         cpu, msr,
2445                         (unsigned int)(((msr) >> 0) & 0xff),
2446                         (unsigned int)(((msr) >> 8) & 0xff),
2447                         (unsigned int)(((msr) >> 16) & 0xff),
2448                         (unsigned int)(((msr) >> 24) & 0xff),
2449                         (unsigned int)(((msr) >> 32) & 0xff3),
2450                         (unsigned int)(((msr) >> 42) & 0x1));
2451
2452         if (has_hwp_pkg) {
2453                 if (get_msr(cpu, MSR_HWP_REQUEST_PKG, &msr))
2454                         return 0;
2455
2456                 fprintf(outf, "cpu%d: MSR_HWP_REQUEST_PKG: 0x%08llx "
2457                         "(min 0x%x max 0x%x des 0x%x epp 0x%x window 0x%x)\n",
2458                         cpu, msr,
2459                         (unsigned int)(((msr) >> 0) & 0xff),
2460                         (unsigned int)(((msr) >> 8) & 0xff),
2461                         (unsigned int)(((msr) >> 16) & 0xff),
2462                         (unsigned int)(((msr) >> 24) & 0xff),
2463                         (unsigned int)(((msr) >> 32) & 0xff3));
2464         }
2465         if (has_hwp_notify) {
2466                 if (get_msr(cpu, MSR_HWP_INTERRUPT, &msr))
2467                         return 0;
2468
2469                 fprintf(outf, "cpu%d: MSR_HWP_INTERRUPT: 0x%08llx "
2470                         "(%s_Guaranteed_Perf_Change, %s_Excursion_Min)\n",
2471                         cpu, msr,
2472                         ((msr) & 0x1) ? "EN" : "Dis",
2473                         ((msr) & 0x2) ? "EN" : "Dis");
2474         }
2475         if (get_msr(cpu, MSR_HWP_STATUS, &msr))
2476                 return 0;
2477
2478         fprintf(outf, "cpu%d: MSR_HWP_STATUS: 0x%08llx "
2479                         "(%sGuaranteed_Perf_Change, %sExcursion_Min)\n",
2480                         cpu, msr,
2481                         ((msr) & 0x1) ? "" : "No-",
2482                         ((msr) & 0x2) ? "" : "No-");
2483
2484         return 0;
2485 }
2486
2487 /*
2488  * print_perf_limit()
2489  */
2490 int print_perf_limit(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2491 {
2492         unsigned long long msr;
2493         int cpu;
2494
2495         cpu = t->cpu_id;
2496
2497         /* per-package */
2498         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
2499                 return 0;
2500
2501         if (cpu_migrate(cpu)) {
2502                 fprintf(outf, "Could not migrate to CPU %d\n", cpu);
2503                 return -1;
2504         }
2505
2506         if (do_core_perf_limit_reasons) {
2507                 get_msr(cpu, MSR_CORE_PERF_LIMIT_REASONS, &msr);
2508                 fprintf(outf, "cpu%d: MSR_CORE_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
2509                 fprintf(outf, " (Active: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)",
2510                         (msr & 1 << 15) ? "bit15, " : "",
2511                         (msr & 1 << 14) ? "bit14, " : "",
2512                         (msr & 1 << 13) ? "Transitions, " : "",
2513                         (msr & 1 << 12) ? "MultiCoreTurbo, " : "",
2514                         (msr & 1 << 11) ? "PkgPwrL2, " : "",
2515                         (msr & 1 << 10) ? "PkgPwrL1, " : "",
2516                         (msr & 1 << 9) ? "CorePwr, " : "",
2517                         (msr & 1 << 8) ? "Amps, " : "",
2518                         (msr & 1 << 6) ? "VR-Therm, " : "",
2519                         (msr & 1 << 5) ? "Auto-HWP, " : "",
2520                         (msr & 1 << 4) ? "Graphics, " : "",
2521                         (msr & 1 << 2) ? "bit2, " : "",
2522                         (msr & 1 << 1) ? "ThermStatus, " : "",
2523                         (msr & 1 << 0) ? "PROCHOT, " : "");
2524                 fprintf(outf, " (Logged: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)\n",
2525                         (msr & 1 << 31) ? "bit31, " : "",
2526                         (msr & 1 << 30) ? "bit30, " : "",
2527                         (msr & 1 << 29) ? "Transitions, " : "",
2528                         (msr & 1 << 28) ? "MultiCoreTurbo, " : "",
2529                         (msr & 1 << 27) ? "PkgPwrL2, " : "",
2530                         (msr & 1 << 26) ? "PkgPwrL1, " : "",
2531                         (msr & 1 << 25) ? "CorePwr, " : "",
2532                         (msr & 1 << 24) ? "Amps, " : "",
2533                         (msr & 1 << 22) ? "VR-Therm, " : "",
2534                         (msr & 1 << 21) ? "Auto-HWP, " : "",
2535                         (msr & 1 << 20) ? "Graphics, " : "",
2536                         (msr & 1 << 18) ? "bit18, " : "",
2537                         (msr & 1 << 17) ? "ThermStatus, " : "",
2538                         (msr & 1 << 16) ? "PROCHOT, " : "");
2539
2540         }
2541         if (do_gfx_perf_limit_reasons) {
2542                 get_msr(cpu, MSR_GFX_PERF_LIMIT_REASONS, &msr);
2543                 fprintf(outf, "cpu%d: MSR_GFX_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
2544                 fprintf(outf, " (Active: %s%s%s%s%s%s%s%s)",
2545                         (msr & 1 << 0) ? "PROCHOT, " : "",
2546                         (msr & 1 << 1) ? "ThermStatus, " : "",
2547                         (msr & 1 << 4) ? "Graphics, " : "",
2548                         (msr & 1 << 6) ? "VR-Therm, " : "",
2549                         (msr & 1 << 8) ? "Amps, " : "",
2550                         (msr & 1 << 9) ? "GFXPwr, " : "",
2551                         (msr & 1 << 10) ? "PkgPwrL1, " : "",
2552                         (msr & 1 << 11) ? "PkgPwrL2, " : "");
2553                 fprintf(outf, " (Logged: %s%s%s%s%s%s%s%s)\n",
2554                         (msr & 1 << 16) ? "PROCHOT, " : "",
2555                         (msr & 1 << 17) ? "ThermStatus, " : "",
2556                         (msr & 1 << 20) ? "Graphics, " : "",
2557                         (msr & 1 << 22) ? "VR-Therm, " : "",
2558                         (msr & 1 << 24) ? "Amps, " : "",
2559                         (msr & 1 << 25) ? "GFXPwr, " : "",
2560                         (msr & 1 << 26) ? "PkgPwrL1, " : "",
2561                         (msr & 1 << 27) ? "PkgPwrL2, " : "");
2562         }
2563         if (do_ring_perf_limit_reasons) {
2564                 get_msr(cpu, MSR_RING_PERF_LIMIT_REASONS, &msr);
2565                 fprintf(outf, "cpu%d: MSR_RING_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
2566                 fprintf(outf, " (Active: %s%s%s%s%s%s)",
2567                         (msr & 1 << 0) ? "PROCHOT, " : "",
2568                         (msr & 1 << 1) ? "ThermStatus, " : "",
2569                         (msr & 1 << 6) ? "VR-Therm, " : "",
2570                         (msr & 1 << 8) ? "Amps, " : "",
2571                         (msr & 1 << 10) ? "PkgPwrL1, " : "",
2572                         (msr & 1 << 11) ? "PkgPwrL2, " : "");
2573                 fprintf(outf, " (Logged: %s%s%s%s%s%s)\n",
2574                         (msr & 1 << 16) ? "PROCHOT, " : "",
2575                         (msr & 1 << 17) ? "ThermStatus, " : "",
2576                         (msr & 1 << 22) ? "VR-Therm, " : "",
2577                         (msr & 1 << 24) ? "Amps, " : "",
2578                         (msr & 1 << 26) ? "PkgPwrL1, " : "",
2579                         (msr & 1 << 27) ? "PkgPwrL2, " : "");
2580         }
2581         return 0;
2582 }
2583
2584 #define RAPL_POWER_GRANULARITY  0x7FFF  /* 15 bit power granularity */
2585 #define RAPL_TIME_GRANULARITY   0x3F /* 6 bit time granularity */
2586
2587 double get_tdp(unsigned int model)
2588 {
2589         unsigned long long msr;
2590
2591         if (do_rapl & RAPL_PKG_POWER_INFO)
2592                 if (!get_msr(base_cpu, MSR_PKG_POWER_INFO, &msr))
2593                         return ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units;
2594
2595         switch (model) {
2596         case 0x37:
2597         case 0x4D:
2598                 return 30.0;
2599         default:
2600                 return 135.0;
2601         }
2602 }
2603
2604 /*
2605  * rapl_dram_energy_units_probe()
2606  * Energy units are either hard-coded, or come from RAPL Energy Unit MSR.
2607  */
2608 static double
2609 rapl_dram_energy_units_probe(int  model, double rapl_energy_units)
2610 {
2611         /* only called for genuine_intel, family 6 */
2612
2613         switch (model) {
2614         case 0x3F:      /* HSX */
2615         case 0x4F:      /* BDX */
2616         case 0x56:      /* BDX-DE */
2617         case 0x57:      /* KNL */
2618                 return (rapl_dram_energy_units = 15.3 / 1000000);
2619         default:
2620                 return (rapl_energy_units);
2621         }
2622 }
2623
2624
2625 /*
2626  * rapl_probe()
2627  *
2628  * sets do_rapl, rapl_power_units, rapl_energy_units, rapl_time_units
2629  */
2630 void rapl_probe(unsigned int family, unsigned int model)
2631 {
2632         unsigned long long msr;
2633         unsigned int time_unit;
2634         double tdp;
2635
2636         if (!genuine_intel)
2637                 return;
2638
2639         if (family != 6)
2640                 return;
2641
2642         switch (model) {
2643         case 0x2A:
2644         case 0x3A:
2645         case 0x3C:      /* HSW */
2646         case 0x45:      /* HSW */
2647         case 0x46:      /* HSW */
2648         case 0x3D:      /* BDW */
2649         case 0x47:      /* BDW */
2650                 do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_GFX | RAPL_PKG_POWER_INFO;
2651                 break;
2652         case 0x5C:      /* BXT */
2653                 do_rapl = RAPL_PKG | RAPL_PKG_POWER_INFO;
2654                 break;
2655         case 0x4E:      /* SKL */
2656         case 0x5E:      /* SKL */
2657         case 0x8E:      /* KBL */
2658         case 0x9E:      /* KBL */
2659                 do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO;
2660                 break;
2661         case 0x3F:      /* HSX */
2662         case 0x4F:      /* BDX */
2663         case 0x56:      /* BDX-DE */
2664         case 0x55:      /* SKX */
2665         case 0x57:      /* KNL */
2666                 do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_POWER_INFO | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO;
2667                 break;
2668         case 0x2D:
2669         case 0x3E:
2670                 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;
2671                 break;
2672         case 0x37:      /* BYT */
2673         case 0x4D:      /* AVN */
2674                 do_rapl = RAPL_PKG | RAPL_CORES ;
2675                 break;
2676         default:
2677                 return;
2678         }
2679
2680         /* units on package 0, verify later other packages match */
2681         if (get_msr(base_cpu, MSR_RAPL_POWER_UNIT, &msr))
2682                 return;
2683
2684         rapl_power_units = 1.0 / (1 << (msr & 0xF));
2685         if (model == 0x37)
2686                 rapl_energy_units = 1.0 * (1 << (msr >> 8 & 0x1F)) / 1000000;
2687         else
2688                 rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F));
2689
2690         rapl_dram_energy_units = rapl_dram_energy_units_probe(model, rapl_energy_units);
2691
2692         time_unit = msr >> 16 & 0xF;
2693         if (time_unit == 0)
2694                 time_unit = 0xA;
2695
2696         rapl_time_units = 1.0 / (1 << (time_unit));
2697
2698         tdp = get_tdp(model);
2699
2700         rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp;
2701         if (debug)
2702                 fprintf(outf, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp);
2703
2704         return;
2705 }
2706
2707 void perf_limit_reasons_probe(unsigned int family, unsigned int model)
2708 {
2709         if (!genuine_intel)
2710                 return;
2711
2712         if (family != 6)
2713                 return;
2714
2715         switch (model) {
2716         case 0x3C:      /* HSW */
2717         case 0x45:      /* HSW */
2718         case 0x46:      /* HSW */
2719                 do_gfx_perf_limit_reasons = 1;
2720         case 0x3F:      /* HSX */
2721                 do_core_perf_limit_reasons = 1;
2722                 do_ring_perf_limit_reasons = 1;
2723         default:
2724                 return;
2725         }
2726 }
2727
2728 int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2729 {
2730         unsigned long long msr;
2731         unsigned int dts;
2732         int cpu;
2733
2734         if (!(do_dts || do_ptm))
2735                 return 0;
2736
2737         cpu = t->cpu_id;
2738
2739         /* DTS is per-core, no need to print for each thread */
2740         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
2741                 return 0;
2742
2743         if (cpu_migrate(cpu)) {
2744                 fprintf(outf, "Could not migrate to CPU %d\n", cpu);
2745                 return -1;
2746         }
2747
2748         if (do_ptm && (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) {
2749                 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
2750                         return 0;
2751
2752                 dts = (msr >> 16) & 0x7F;
2753                 fprintf(outf, "cpu%d: MSR_IA32_PACKAGE_THERM_STATUS: 0x%08llx (%d C)\n",
2754                         cpu, msr, tcc_activation_temp - dts);
2755
2756 #ifdef  THERM_DEBUG
2757                 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &msr))
2758                         return 0;
2759
2760                 dts = (msr >> 16) & 0x7F;
2761                 dts2 = (msr >> 8) & 0x7F;
2762                 fprintf(outf, "cpu%d: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
2763                         cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
2764 #endif
2765         }
2766
2767
2768         if (do_dts) {
2769                 unsigned int resolution;
2770
2771                 if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
2772                         return 0;
2773
2774                 dts = (msr >> 16) & 0x7F;
2775                 resolution = (msr >> 27) & 0xF;
2776                 fprintf(outf, "cpu%d: MSR_IA32_THERM_STATUS: 0x%08llx (%d C +/- %d)\n",
2777                         cpu, msr, tcc_activation_temp - dts, resolution);
2778
2779 #ifdef THERM_DEBUG
2780                 if (get_msr(cpu, MSR_IA32_THERM_INTERRUPT, &msr))
2781                         return 0;
2782
2783                 dts = (msr >> 16) & 0x7F;
2784                 dts2 = (msr >> 8) & 0x7F;
2785                 fprintf(outf, "cpu%d: MSR_IA32_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
2786                         cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
2787 #endif
2788         }
2789
2790         return 0;
2791 }
2792
2793 void print_power_limit_msr(int cpu, unsigned long long msr, char *label)
2794 {
2795         fprintf(outf, "cpu%d: %s: %sabled (%f Watts, %f sec, clamp %sabled)\n",
2796                 cpu, label,
2797                 ((msr >> 15) & 1) ? "EN" : "DIS",
2798                 ((msr >> 0) & 0x7FFF) * rapl_power_units,
2799                 (1.0 + (((msr >> 22) & 0x3)/4.0)) * (1 << ((msr >> 17) & 0x1F)) * rapl_time_units,
2800                 (((msr >> 16) & 1) ? "EN" : "DIS"));
2801
2802         return;
2803 }
2804
2805 int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2806 {
2807         unsigned long long msr;
2808         int cpu;
2809
2810         if (!do_rapl)
2811                 return 0;
2812
2813         /* RAPL counters are per package, so print only for 1st thread/package */
2814         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
2815                 return 0;
2816
2817         cpu = t->cpu_id;
2818         if (cpu_migrate(cpu)) {
2819                 fprintf(outf, "Could not migrate to CPU %d\n", cpu);
2820                 return -1;
2821         }
2822
2823         if (get_msr(cpu, MSR_RAPL_POWER_UNIT, &msr))
2824                 return -1;
2825
2826         if (debug) {
2827                 fprintf(outf, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx "
2828                         "(%f Watts, %f Joules, %f sec.)\n", cpu, msr,
2829                         rapl_power_units, rapl_energy_units, rapl_time_units);
2830         }
2831         if (do_rapl & RAPL_PKG_POWER_INFO) {
2832
2833                 if (get_msr(cpu, MSR_PKG_POWER_INFO, &msr))
2834                         return -5;
2835
2836
2837                 fprintf(outf, "cpu%d: MSR_PKG_POWER_INFO: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
2838                         cpu, msr,
2839                         ((msr >>  0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2840                         ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2841                         ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2842                         ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
2843
2844         }
2845         if (do_rapl & RAPL_PKG) {
2846
2847                 if (get_msr(cpu, MSR_PKG_POWER_LIMIT, &msr))
2848                         return -9;
2849
2850                 fprintf(outf, "cpu%d: MSR_PKG_POWER_LIMIT: 0x%08llx (%slocked)\n",
2851                         cpu, msr, (msr >> 63) & 1 ? "": "UN");
2852
2853                 print_power_limit_msr(cpu, msr, "PKG Limit #1");
2854                 fprintf(outf, "cpu%d: PKG Limit #2: %sabled (%f Watts, %f* sec, clamp %sabled)\n",
2855                         cpu,
2856                         ((msr >> 47) & 1) ? "EN" : "DIS",
2857                         ((msr >> 32) & 0x7FFF) * rapl_power_units,
2858                         (1.0 + (((msr >> 54) & 0x3)/4.0)) * (1 << ((msr >> 49) & 0x1F)) * rapl_time_units,
2859                         ((msr >> 48) & 1) ? "EN" : "DIS");
2860         }
2861
2862         if (do_rapl & RAPL_DRAM_POWER_INFO) {
2863                 if (get_msr(cpu, MSR_DRAM_POWER_INFO, &msr))
2864                         return -6;
2865
2866                 fprintf(outf, "cpu%d: MSR_DRAM_POWER_INFO,: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
2867                         cpu, msr,
2868                         ((msr >>  0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2869                         ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2870                         ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2871                         ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
2872         }
2873         if (do_rapl & RAPL_DRAM) {
2874                 if (get_msr(cpu, MSR_DRAM_POWER_LIMIT, &msr))
2875                         return -9;
2876                 fprintf(outf, "cpu%d: MSR_DRAM_POWER_LIMIT: 0x%08llx (%slocked)\n",
2877                                 cpu, msr, (msr >> 31) & 1 ? "": "UN");
2878
2879                 print_power_limit_msr(cpu, msr, "DRAM Limit");
2880         }
2881         if (do_rapl & RAPL_CORE_POLICY) {
2882                 if (debug) {
2883                         if (get_msr(cpu, MSR_PP0_POLICY, &msr))
2884                                 return -7;
2885
2886                         fprintf(outf, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF);
2887                 }
2888         }
2889         if (do_rapl & RAPL_CORES) {
2890                 if (debug) {
2891
2892                         if (get_msr(cpu, MSR_PP0_POWER_LIMIT, &msr))
2893                                 return -9;
2894                         fprintf(outf, "cpu%d: MSR_PP0_POWER_LIMIT: 0x%08llx (%slocked)\n",
2895                                         cpu, msr, (msr >> 31) & 1 ? "": "UN");
2896                         print_power_limit_msr(cpu, msr, "Cores Limit");
2897                 }
2898         }
2899         if (do_rapl & RAPL_GFX) {
2900                 if (debug) {
2901                         if (get_msr(cpu, MSR_PP1_POLICY, &msr))
2902                                 return -8;
2903
2904                         fprintf(outf, "cpu%d: MSR_PP1_POLICY: %lld\n", cpu, msr & 0xF);
2905
2906                         if (get_msr(cpu, MSR_PP1_POWER_LIMIT, &msr))
2907                                 return -9;
2908                         fprintf(outf, "cpu%d: MSR_PP1_POWER_LIMIT: 0x%08llx (%slocked)\n",
2909                                         cpu, msr, (msr >> 31) & 1 ? "": "UN");
2910                         print_power_limit_msr(cpu, msr, "GFX Limit");
2911                 }
2912         }
2913         return 0;
2914 }
2915
2916 /*
2917  * SNB adds support for additional MSRs:
2918  *
2919  * MSR_PKG_C7_RESIDENCY            0x000003fa
2920  * MSR_CORE_C7_RESIDENCY           0x000003fe
2921  * MSR_PKG_C2_RESIDENCY            0x0000060d
2922  */
2923
2924 int has_snb_msrs(unsigned int family, unsigned int model)
2925 {
2926         if (!genuine_intel)
2927                 return 0;
2928
2929         switch (model) {
2930         case 0x2A:
2931         case 0x2D:
2932         case 0x3A:      /* IVB */
2933         case 0x3E:      /* IVB Xeon */
2934         case 0x3C:      /* HSW */
2935         case 0x3F:      /* HSW */
2936         case 0x45:      /* HSW */
2937         case 0x46:      /* HSW */
2938         case 0x3D:      /* BDW */
2939         case 0x47:      /* BDW */
2940         case 0x4F:      /* BDX */
2941         case 0x56:      /* BDX-DE */
2942         case 0x4E:      /* SKL */
2943         case 0x5E:      /* SKL */
2944         case 0x8E:      /* KBL */
2945         case 0x9E:      /* KBL */
2946         case 0x55:      /* SKX */
2947         case 0x5C:      /* BXT */
2948                 return 1;
2949         }
2950         return 0;
2951 }
2952
2953 /*
2954  * HSW adds support for additional MSRs:
2955  *
2956  * MSR_PKG_C8_RESIDENCY         0x00000630
2957  * MSR_PKG_C9_RESIDENCY         0x00000631
2958  * MSR_PKG_C10_RESIDENCY        0x00000632
2959  *
2960  * MSR_PKGC8_IRTL               0x00000633
2961  * MSR_PKGC9_IRTL               0x00000634
2962  * MSR_PKGC10_IRTL              0x00000635
2963  *
2964  */
2965 int has_hsw_msrs(unsigned int family, unsigned int model)
2966 {
2967         if (!genuine_intel)
2968                 return 0;
2969
2970         switch (model) {
2971         case 0x45:      /* HSW */
2972         case 0x3D:      /* BDW */
2973         case 0x4E:      /* SKL */
2974         case 0x5E:      /* SKL */
2975         case 0x8E:      /* KBL */
2976         case 0x9E:      /* KBL */
2977         case 0x5C:      /* BXT */
2978                 return 1;
2979         }
2980         return 0;
2981 }
2982
2983 /*
2984  * SKL adds support for additional MSRS:
2985  *
2986  * MSR_PKG_WEIGHTED_CORE_C0_RES    0x00000658
2987  * MSR_PKG_ANY_CORE_C0_RES         0x00000659
2988  * MSR_PKG_ANY_GFXE_C0_RES         0x0000065A
2989  * MSR_PKG_BOTH_CORE_GFXE_C0_RES   0x0000065B
2990  */
2991 int has_skl_msrs(unsigned int family, unsigned int model)
2992 {
2993         if (!genuine_intel)
2994                 return 0;
2995
2996         switch (model) {
2997         case 0x4E:      /* SKL */
2998         case 0x5E:      /* SKL */
2999         case 0x8E:      /* KBL */
3000         case 0x9E:      /* KBL */
3001                 return 1;
3002         }
3003         return 0;
3004 }
3005
3006
3007
3008 int is_slm(unsigned int family, unsigned int model)
3009 {
3010         if (!genuine_intel)
3011                 return 0;
3012         switch (model) {
3013         case 0x37:      /* BYT */
3014         case 0x4D:      /* AVN */
3015                 return 1;
3016         }
3017         return 0;
3018 }
3019
3020 int is_knl(unsigned int family, unsigned int model)
3021 {
3022         if (!genuine_intel)
3023                 return 0;
3024         switch (model) {
3025         case 0x57:      /* KNL */
3026                 return 1;
3027         }
3028         return 0;
3029 }
3030
3031 unsigned int get_aperf_mperf_multiplier(unsigned int family, unsigned int model)
3032 {
3033         if (is_knl(family, model))
3034                 return 1024;
3035         return 1;
3036 }
3037
3038 #define SLM_BCLK_FREQS 5
3039 double slm_freq_table[SLM_BCLK_FREQS] = { 83.3, 100.0, 133.3, 116.7, 80.0};
3040
3041 double slm_bclk(void)
3042 {
3043         unsigned long long msr = 3;
3044         unsigned int i;
3045         double freq;
3046
3047         if (get_msr(base_cpu, MSR_FSB_FREQ, &msr))
3048                 fprintf(outf, "SLM BCLK: unknown\n");
3049
3050         i = msr & 0xf;
3051         if (i >= SLM_BCLK_FREQS) {
3052                 fprintf(outf, "SLM BCLK[%d] invalid\n", i);
3053                 msr = 3;
3054         }
3055         freq = slm_freq_table[i];
3056
3057         fprintf(outf, "SLM BCLK: %.1f Mhz\n", freq);
3058
3059         return freq;
3060 }
3061
3062 double discover_bclk(unsigned int family, unsigned int model)
3063 {
3064         if (has_snb_msrs(family, model) || is_knl(family, model))
3065                 return 100.00;
3066         else if (is_slm(family, model))
3067                 return slm_bclk();
3068         else
3069                 return 133.33;
3070 }
3071
3072 /*
3073  * MSR_IA32_TEMPERATURE_TARGET indicates the temperature where
3074  * the Thermal Control Circuit (TCC) activates.
3075  * This is usually equal to tjMax.
3076  *
3077  * Older processors do not have this MSR, so there we guess,
3078  * but also allow cmdline over-ride with -T.
3079  *
3080  * Several MSR temperature values are in units of degrees-C
3081  * below this value, including the Digital Thermal Sensor (DTS),
3082  * Package Thermal Management Sensor (PTM), and thermal event thresholds.
3083  */
3084 int set_temperature_target(struct thread_data *t, struct core_data *c, struct pkg_data *p)
3085 {
3086         unsigned long long msr;
3087         unsigned int target_c_local;
3088         int cpu;
3089
3090         /* tcc_activation_temp is used only for dts or ptm */
3091         if (!(do_dts || do_ptm))
3092                 return 0;
3093
3094         /* this is a per-package concept */
3095         if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
3096                 return 0;
3097
3098         cpu = t->cpu_id;
3099         if (cpu_migrate(cpu)) {
3100                 fprintf(outf, "Could not migrate to CPU %d\n", cpu);
3101                 return -1;
3102         }
3103
3104         if (tcc_activation_temp_override != 0) {
3105                 tcc_activation_temp = tcc_activation_temp_override;
3106                 fprintf(outf, "cpu%d: Using cmdline TCC Target (%d C)\n",
3107                         cpu, tcc_activation_temp);
3108                 return 0;
3109         }
3110
3111         /* Temperature Target MSR is Nehalem and newer only */
3112         if (!do_nhm_platform_info)
3113                 goto guess;
3114
3115         if (get_msr(base_cpu, MSR_IA32_TEMPERATURE_TARGET, &msr))
3116                 goto guess;
3117
3118         target_c_local = (msr >> 16) & 0xFF;
3119
3120         if (debug)
3121                 fprintf(outf, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n",
3122                         cpu, msr, target_c_local);
3123
3124         if (!target_c_local)
3125                 goto guess;
3126
3127         tcc_activation_temp = target_c_local;
3128
3129         return 0;
3130
3131 guess:
3132         tcc_activation_temp = TJMAX_DEFAULT;
3133         fprintf(outf, "cpu%d: Guessing tjMax %d C, Please use -T to specify\n",
3134                 cpu, tcc_activation_temp);
3135
3136         return 0;
3137 }
3138
3139 void decode_feature_control_msr(void)
3140 {
3141         unsigned long long msr;
3142
3143         if (!get_msr(base_cpu, MSR_IA32_FEATURE_CONTROL, &msr))
3144                 fprintf(outf, "cpu%d: MSR_IA32_FEATURE_CONTROL: 0x%08llx (%sLocked %s)\n",
3145                         base_cpu, msr,
3146                         msr & FEATURE_CONTROL_LOCKED ? "" : "UN-",
3147                         msr & (1 << 18) ? "SGX" : "");
3148 }
3149
3150 void decode_misc_enable_msr(void)
3151 {
3152         unsigned long long msr;
3153
3154         if (!get_msr(base_cpu, MSR_IA32_MISC_ENABLE, &msr))
3155                 fprintf(outf, "cpu%d: MSR_IA32_MISC_ENABLE: 0x%08llx (%s %s %s)\n",
3156                         base_cpu, msr,
3157                         msr & (1 << 3) ? "TCC" : "",
3158                         msr & (1 << 16) ? "EIST" : "",
3159                         msr & (1 << 18) ? "MONITOR" : "");
3160 }
3161
3162 /*
3163  * Decode MSR_MISC_PWR_MGMT
3164  *
3165  * Decode the bits according to the Nehalem documentation
3166  * bit[0] seems to continue to have same meaning going forward
3167  * bit[1] less so...
3168  */
3169 void decode_misc_pwr_mgmt_msr(void)
3170 {
3171         unsigned long long msr;
3172
3173         if (!do_nhm_platform_info)
3174                 return;
3175
3176         if (!get_msr(base_cpu, MSR_MISC_PWR_MGMT, &msr))
3177                 fprintf(outf, "cpu%d: MSR_MISC_PWR_MGMT: 0x%08llx (%sable-EIST_Coordination %sable-EPB)\n",
3178                         base_cpu, msr,
3179                         msr & (1 << 0) ? "DIS" : "EN",
3180                         msr & (1 << 1) ? "EN" : "DIS");
3181 }
3182
3183 void process_cpuid()
3184 {
3185         unsigned int eax, ebx, ecx, edx, max_level, max_extended_level;
3186         unsigned int fms, family, model, stepping;
3187
3188         eax = ebx = ecx = edx = 0;
3189
3190         __cpuid(0, max_level, ebx, ecx, edx);
3191
3192         if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e)
3193                 genuine_intel = 1;
3194
3195         if (debug)
3196                 fprintf(outf, "CPUID(0): %.4s%.4s%.4s ",
3197                         (char *)&ebx, (char *)&edx, (char *)&ecx);
3198
3199         __cpuid(1, fms, ebx, ecx, edx);
3200         family = (fms >> 8) & 0xf;
3201         model = (fms >> 4) & 0xf;
3202         stepping = fms & 0xf;
3203         if (family == 6 || family == 0xf)
3204                 model += ((fms >> 16) & 0xf) << 4;
3205
3206         if (debug) {
3207                 fprintf(outf, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n",
3208                         max_level, family, model, stepping, family, model, stepping);
3209                 fprintf(outf, "CPUID(1): %s %s %s %s %s %s %s %s %s\n",
3210                         ecx & (1 << 0) ? "SSE3" : "-",
3211                         ecx & (1 << 3) ? "MONITOR" : "-",
3212                         ecx & (1 << 6) ? "SMX" : "-",
3213                         ecx & (1 << 7) ? "EIST" : "-",
3214                         ecx & (1 << 8) ? "TM2" : "-",
3215                         edx & (1 << 4) ? "TSC" : "-",
3216                         edx & (1 << 5) ? "MSR" : "-",
3217                         edx & (1 << 22) ? "ACPI-TM" : "-",
3218                         edx & (1 << 29) ? "TM" : "-");
3219         }
3220
3221         if (!(edx & (1 << 5)))
3222                 errx(1, "CPUID: no MSR");
3223
3224         /*
3225          * check max extended function levels of CPUID.
3226          * This is needed to check for invariant TSC.
3227          * This check is valid for both Intel and AMD.
3228          */
3229         ebx = ecx = edx = 0;
3230         __cpuid(0x80000000, max_extended_level, ebx, ecx, edx);
3231
3232         if (max_extended_level >= 0x80000007) {
3233
3234                 /*
3235                  * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8
3236                  * this check is valid for both Intel and AMD
3237                  */
3238                 __cpuid(0x80000007, eax, ebx, ecx, edx);
3239                 has_invariant_tsc = edx & (1 << 8);
3240         }
3241
3242         /*
3243          * APERF/MPERF is advertised by CPUID.EAX=0x6: ECX.bit0
3244          * this check is valid for both Intel and AMD
3245          */
3246
3247         __cpuid(0x6, eax, ebx, ecx, edx);
3248         has_aperf = ecx & (1 << 0);
3249         do_dts = eax & (1 << 0);
3250         do_ptm = eax & (1 << 6);
3251         has_hwp = eax & (1 << 7);
3252         has_hwp_notify = eax & (1 << 8);
3253         has_hwp_activity_window = eax & (1 << 9);
3254         has_hwp_epp = eax & (1 << 10);
3255         has_hwp_pkg = eax & (1 << 11);
3256         has_epb = ecx & (1 << 3);
3257
3258         if (debug)
3259                 fprintf(outf, "CPUID(6): %sAPERF, %sDTS, %sPTM, %sHWP, "
3260                         "%sHWPnotify, %sHWPwindow, %sHWPepp, %sHWPpkg, %sEPB\n",
3261                         has_aperf ? "" : "No-",
3262                         do_dts ? "" : "No-",
3263                         do_ptm ? "" : "No-",
3264                         has_hwp ? "" : "No-",
3265                         has_hwp_notify ? "" : "No-",
3266                         has_hwp_activity_window ? "" : "No-",
3267                         has_hwp_epp ? "" : "No-",
3268                         has_hwp_pkg ? "" : "No-",
3269                         has_epb ? "" : "No-");
3270
3271         if (debug)
3272                 decode_misc_enable_msr();
3273
3274         if (max_level >= 0x7 && debug) {
3275                 int has_sgx;
3276
3277                 ecx = 0;
3278
3279                 __cpuid_count(0x7, 0, eax, ebx, ecx, edx);
3280
3281                 has_sgx = ebx & (1 << 2);
3282                 fprintf(outf, "CPUID(7): %sSGX\n", has_sgx ? "" : "No-");
3283
3284                 if (has_sgx)
3285                         decode_feature_control_msr();
3286         }
3287
3288         if (max_level >= 0x15) {
3289                 unsigned int eax_crystal;
3290                 unsigned int ebx_tsc;
3291
3292                 /*
3293                  * CPUID 15H TSC/Crystal ratio, possibly Crystal Hz
3294                  */
3295                 eax_crystal = ebx_tsc = crystal_hz = edx = 0;
3296                 __cpuid(0x15, eax_crystal, ebx_tsc, crystal_hz, edx);
3297
3298                 if (ebx_tsc != 0) {
3299
3300                         if (debug && (ebx != 0))
3301                                 fprintf(outf, "CPUID(0x15): eax_crystal: %d ebx_tsc: %d ecx_crystal_hz: %d\n",
3302                                         eax_crystal, ebx_tsc, crystal_hz);
3303
3304                         if (crystal_hz == 0)
3305                                 switch(model) {
3306                                 case 0x4E:      /* SKL */
3307                                 case 0x5E:      /* SKL */
3308                                 case 0x8E:      /* KBL */
3309                                 case 0x9E:      /* KBL */
3310                                         crystal_hz = 24000000;  /* 24.0 MHz */
3311                                         break;
3312                                 case 0x55:      /* SKX */
3313                                         crystal_hz = 25000000;  /* 25.0 MHz */
3314                                         break;
3315                                 case 0x5C:      /* BXT */
3316                                         crystal_hz = 19200000;  /* 19.2 MHz */
3317                                         break;
3318                                 default:
3319                                         crystal_hz = 0;
3320                         }
3321
3322                         if (crystal_hz) {
3323                                 tsc_hz =  (unsigned long long) crystal_hz * ebx_tsc / eax_crystal;
3324                                 if (debug)
3325                                         fprintf(outf, "TSC: %lld MHz (%d Hz * %d / %d / 1000000)\n",
3326                                                 tsc_hz / 1000000, crystal_hz, ebx_tsc,  eax_crystal);
3327                         }
3328                 }
3329         }
3330         if (max_level >= 0x16) {
3331                 unsigned int base_mhz, max_mhz, bus_mhz, edx;
3332
3333                 /*
3334                  * CPUID 16H Base MHz, Max MHz, Bus MHz
3335                  */
3336                 base_mhz = max_mhz = bus_mhz = edx = 0;
3337
3338                 __cpuid(0x16, base_mhz, max_mhz, bus_mhz, edx);
3339                 if (debug)
3340                         fprintf(outf, "CPUID(0x16): base_mhz: %d max_mhz: %d bus_mhz: %d\n",
3341                                 base_mhz, max_mhz, bus_mhz);
3342         }
3343
3344         if (has_aperf)
3345                 aperf_mperf_multiplier = get_aperf_mperf_multiplier(family, model);
3346
3347         do_nhm_platform_info = do_nhm_cstates = do_smi = probe_nhm_msrs(family, model);
3348         do_snb_cstates = has_snb_msrs(family, model);
3349         do_irtl_snb = has_snb_msrs(family, model);
3350         do_pc2 = do_snb_cstates && (pkg_cstate_limit >= PCL__2);
3351         do_pc3 = (pkg_cstate_limit >= PCL__3);
3352         do_pc6 = (pkg_cstate_limit >= PCL__6);
3353         do_pc7 = do_snb_cstates && (pkg_cstate_limit >= PCL__7);
3354         do_c8_c9_c10 = has_hsw_msrs(family, model);
3355         do_irtl_hsw = has_hsw_msrs(family, model);
3356         do_skl_residency = has_skl_msrs(family, model);
3357         do_slm_cstates = is_slm(family, model);
3358         do_knl_cstates  = is_knl(family, model);
3359
3360         if (debug)
3361                 decode_misc_pwr_mgmt_msr();
3362
3363         rapl_probe(family, model);
3364         perf_limit_reasons_probe(family, model);
3365
3366         if (debug)
3367                 dump_cstate_pstate_config_info(family, model);
3368
3369         if (has_skl_msrs(family, model))
3370                 calculate_tsc_tweak();
3371
3372         do_gfx_rc6_ms = !access("/sys/class/drm/card0/power/rc6_residency_ms", R_OK);
3373
3374         do_gfx_mhz = !access("/sys/class/graphics/fb0/device/drm/card0/gt_cur_freq_mhz", R_OK);
3375
3376         return;
3377 }
3378
3379 void help()
3380 {
3381         fprintf(outf,
3382         "Usage: turbostat [OPTIONS][(--interval seconds) | COMMAND ...]\n"
3383         "\n"
3384         "Turbostat forks the specified COMMAND and prints statistics\n"
3385         "when COMMAND completes.\n"
3386         "If no COMMAND is specified, turbostat wakes every 5-seconds\n"
3387         "to print statistics, until interrupted.\n"
3388         "--debug        run in \"debug\" mode\n"
3389         "--interval sec Override default 5-second measurement interval\n"
3390         "--help         print this help message\n"
3391         "--counter msr  print 32-bit counter at address \"msr\"\n"
3392         "--Counter msr  print 64-bit Counter at address \"msr\"\n"
3393         "--out file     create or truncate \"file\" for all output\n"
3394         "--msr msr      print 32-bit value at address \"msr\"\n"
3395         "--MSR msr      print 64-bit Value at address \"msr\"\n"
3396         "--version      print version information\n"
3397         "\n"
3398         "For more help, run \"man turbostat\"\n");
3399 }
3400
3401
3402 /*
3403  * in /dev/cpu/ return success for names that are numbers
3404  * ie. filter out ".", "..", "microcode".
3405  */
3406 int dir_filter(const struct dirent *dirp)
3407 {
3408         if (isdigit(dirp->d_name[0]))
3409                 return 1;
3410         else
3411                 return 0;
3412 }
3413
3414 int open_dev_cpu_msr(int dummy1)
3415 {
3416         return 0;
3417 }
3418
3419 void topology_probe()
3420 {
3421         int i;
3422         int max_core_id = 0;
3423         int max_package_id = 0;
3424         int max_siblings = 0;
3425         struct cpu_topology {
3426                 int core_id;
3427                 int physical_package_id;
3428         } *cpus;
3429
3430         /* Initialize num_cpus, max_cpu_num */
3431         topo.num_cpus = 0;
3432         topo.max_cpu_num = 0;
3433         for_all_proc_cpus(count_cpus);
3434         if (!summary_only && topo.num_cpus > 1)
3435                 show_cpu = 1;
3436
3437         if (debug > 1)
3438                 fprintf(outf, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num);
3439
3440         cpus = calloc(1, (topo.max_cpu_num  + 1) * sizeof(struct cpu_topology));
3441         if (cpus == NULL)
3442                 err(1, "calloc cpus");
3443
3444         /*
3445          * Allocate and initialize cpu_present_set
3446          */
3447         cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1));
3448         if (cpu_present_set == NULL)
3449                 err(3, "CPU_ALLOC");
3450         cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
3451         CPU_ZERO_S(cpu_present_setsize, cpu_present_set);
3452         for_all_proc_cpus(mark_cpu_present);
3453
3454         /*
3455          * Allocate and initialize cpu_affinity_set
3456          */
3457         cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1));
3458         if (cpu_affinity_set == NULL)
3459                 err(3, "CPU_ALLOC");
3460         cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
3461         CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
3462
3463
3464         /*
3465          * For online cpus
3466          * find max_core_id, max_package_id
3467          */
3468         for (i = 0; i <= topo.max_cpu_num; ++i) {
3469                 int siblings;
3470
3471                 if (cpu_is_not_present(i)) {
3472                         if (debug > 1)
3473                                 fprintf(outf, "cpu%d NOT PRESENT\n", i);
3474                         continue;
3475                 }
3476                 cpus[i].core_id = get_core_id(i);
3477                 if (cpus[i].core_id > max_core_id)
3478                         max_core_id = cpus[i].core_id;
3479
3480                 cpus[i].physical_package_id = get_physical_package_id(i);
3481                 if (cpus[i].physical_package_id > max_package_id)
3482                         max_package_id = cpus[i].physical_package_id;
3483
3484                 siblings = get_num_ht_siblings(i);
3485                 if (siblings > max_siblings)
3486                         max_siblings = siblings;
3487                 if (debug > 1)
3488                         fprintf(outf, "cpu %d pkg %d core %d\n",
3489                                 i, cpus[i].physical_package_id, cpus[i].core_id);
3490         }
3491         topo.num_cores_per_pkg = max_core_id + 1;
3492         if (debug > 1)
3493                 fprintf(outf, "max_core_id %d, sizing for %d cores per package\n",
3494                         max_core_id, topo.num_cores_per_pkg);
3495         if (debug && !summary_only && topo.num_cores_per_pkg > 1)
3496                 show_core = 1;
3497
3498         topo.num_packages = max_package_id + 1;
3499         if (debug > 1)
3500                 fprintf(outf, "max_package_id %d, sizing for %d packages\n",
3501                         max_package_id, topo.num_packages);
3502         if (debug && !summary_only && topo.num_packages > 1)
3503                 show_pkg = 1;
3504
3505         topo.num_threads_per_core = max_siblings;
3506         if (debug > 1)
3507                 fprintf(outf, "max_siblings %d\n", max_siblings);
3508
3509         free(cpus);
3510 }
3511
3512 void
3513 allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p)
3514 {
3515         int i;
3516
3517         *t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg *
3518                 topo.num_packages, sizeof(struct thread_data));
3519         if (*t == NULL)
3520                 goto error;
3521
3522         for (i = 0; i < topo.num_threads_per_core *
3523                 topo.num_cores_per_pkg * topo.num_packages; i++)
3524                 (*t)[i].cpu_id = -1;
3525
3526         *c = calloc(topo.num_cores_per_pkg * topo.num_packages,
3527                 sizeof(struct core_data));
3528         if (*c == NULL)
3529                 goto error;
3530
3531         for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++)
3532                 (*c)[i].core_id = -1;
3533
3534         *p = calloc(topo.num_packages, sizeof(struct pkg_data));
3535         if (*p == NULL)
3536                 goto error;
3537
3538         for (i = 0; i < topo.num_packages; i++)
3539                 (*p)[i].package_id = i;
3540
3541         return;
3542 error:
3543         err(1, "calloc counters");
3544 }
3545 /*
3546  * init_counter()
3547  *
3548  * set cpu_id, core_num, pkg_num
3549  * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE
3550  *
3551  * increment topo.num_cores when 1st core in pkg seen
3552  */
3553 void init_counter(struct thread_data *thread_base, struct core_data *core_base,
3554         struct pkg_data *pkg_base, int thread_num, int core_num,
3555         int pkg_num, int cpu_id)
3556 {
3557         struct thread_data *t;
3558         struct core_data *c;
3559         struct pkg_data *p;
3560
3561         t = GET_THREAD(thread_base, thread_num, core_num, pkg_num);
3562         c = GET_CORE(core_base, core_num, pkg_num);
3563         p = GET_PKG(pkg_base, pkg_num);
3564
3565         t->cpu_id = cpu_id;
3566         if (thread_num == 0) {
3567                 t->flags |= CPU_IS_FIRST_THREAD_IN_CORE;
3568                 if (cpu_is_first_core_in_package(cpu_id))
3569                         t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE;
3570         }
3571
3572         c->core_id = core_num;
3573         p->package_id = pkg_num;
3574 }
3575
3576
3577 int initialize_counters(int cpu_id)
3578 {
3579         int my_thread_id, my_core_id, my_package_id;
3580
3581         my_package_id = get_physical_package_id(cpu_id);
3582         my_core_id = get_core_id(cpu_id);
3583         my_thread_id = get_cpu_position_in_core(cpu_id);
3584         if (!my_thread_id)
3585                 topo.num_cores++;
3586
3587         init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
3588         init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
3589         return 0;
3590 }
3591
3592 void allocate_output_buffer()
3593 {
3594         output_buffer = calloc(1, (1 + topo.num_cpus) * 1024);
3595         outp = output_buffer;
3596         if (outp == NULL)
3597                 err(-1, "calloc output buffer");
3598 }
3599 void allocate_fd_percpu(void)
3600 {
3601         fd_percpu = calloc(topo.max_cpu_num, sizeof(int));
3602         if (fd_percpu == NULL)
3603                 err(-1, "calloc fd_percpu");
3604 }
3605 void allocate_irq_buffers(void)
3606 {
3607         irq_column_2_cpu = calloc(topo.num_cpus, sizeof(int));
3608         if (irq_column_2_cpu == NULL)
3609                 err(-1, "calloc %d", topo.num_cpus);
3610
3611         irqs_per_cpu = calloc(topo.max_cpu_num, sizeof(int));
3612         if (irqs_per_cpu == NULL)
3613                 err(-1, "calloc %d", topo.max_cpu_num);
3614 }
3615 void setup_all_buffers(void)
3616 {
3617         topology_probe();
3618         allocate_irq_buffers();
3619         allocate_fd_percpu();
3620         allocate_counters(&thread_even, &core_even, &package_even);
3621         allocate_counters(&thread_odd, &core_odd, &package_odd);
3622         allocate_output_buffer();
3623         for_all_proc_cpus(initialize_counters);
3624 }
3625
3626 void set_base_cpu(void)
3627 {
3628         base_cpu = sched_getcpu();
3629         if (base_cpu < 0)
3630                 err(-ENODEV, "No valid cpus found");
3631
3632         if (debug > 1)
3633                 fprintf(outf, "base_cpu = %d\n", base_cpu);
3634 }
3635
3636 void turbostat_init()
3637 {
3638         setup_all_buffers();
3639         set_base_cpu();
3640         check_dev_msr();
3641         check_permissions();
3642         process_cpuid();
3643
3644
3645         if (debug)
3646                 for_all_cpus(print_hwp, ODD_COUNTERS);
3647
3648         if (debug)
3649                 for_all_cpus(print_epb, ODD_COUNTERS);
3650
3651         if (debug)
3652                 for_all_cpus(print_perf_limit, ODD_COUNTERS);
3653
3654         if (debug)
3655                 for_all_cpus(print_rapl, ODD_COUNTERS);
3656
3657         for_all_cpus(set_temperature_target, ODD_COUNTERS);
3658
3659         if (debug)
3660                 for_all_cpus(print_thermal, ODD_COUNTERS);
3661
3662         if (debug && do_irtl_snb)
3663                 print_irtl();
3664 }
3665
3666 int fork_it(char **argv)
3667 {
3668         pid_t child_pid;
3669         int status;
3670
3671         status = for_all_cpus(get_counters, EVEN_COUNTERS);
3672         if (status)
3673                 exit(status);
3674         /* clear affinity side-effect of get_counters() */
3675         sched_setaffinity(0, cpu_present_setsize, cpu_present_set);
3676         gettimeofday(&tv_even, (struct timezone *)NULL);
3677
3678         child_pid = fork();
3679         if (!child_pid) {
3680                 /* child */
3681                 execvp(argv[0], argv);
3682         } else {
3683
3684                 /* parent */
3685                 if (child_pid == -1)
3686                         err(1, "fork");
3687
3688                 signal(SIGINT, SIG_IGN);
3689                 signal(SIGQUIT, SIG_IGN);
3690                 if (waitpid(child_pid, &status, 0) == -1)
3691                         err(status, "waitpid");
3692         }
3693         /*
3694          * n.b. fork_it() does not check for errors from for_all_cpus()
3695          * because re-starting is problematic when forking
3696          */
3697         for_all_cpus(get_counters, ODD_COUNTERS);
3698         gettimeofday(&tv_odd, (struct timezone *)NULL);
3699         timersub(&tv_odd, &tv_even, &tv_delta);
3700         for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
3701         compute_average(EVEN_COUNTERS);
3702         format_all_counters(EVEN_COUNTERS);
3703
3704         fprintf(outf, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0);
3705
3706         flush_output_stderr();
3707
3708         return status;
3709 }
3710
3711 int get_and_dump_counters(void)
3712 {
3713         int status;
3714
3715         status = for_all_cpus(get_counters, ODD_COUNTERS);
3716         if (status)
3717                 return status;
3718
3719         status = for_all_cpus(dump_counters, ODD_COUNTERS);
3720         if (status)
3721                 return status;
3722
3723         flush_output_stdout();
3724
3725         return status;
3726 }
3727
3728 void print_version() {
3729         fprintf(outf, "turbostat version 4.12 5 Apr 2016"
3730                 " - Len Brown <lenb@kernel.org>\n");
3731 }
3732
3733 void cmdline(int argc, char **argv)
3734 {
3735         int opt;
3736         int option_index = 0;
3737         static struct option long_options[] = {
3738                 {"Counter",     required_argument,      0, 'C'},
3739                 {"counter",     required_argument,      0, 'c'},
3740                 {"Dump",        no_argument,            0, 'D'},
3741                 {"debug",       no_argument,            0, 'd'},
3742                 {"interval",    required_argument,      0, 'i'},
3743                 {"help",        no_argument,            0, 'h'},
3744                 {"Joules",      no_argument,            0, 'J'},
3745                 {"MSR",         required_argument,      0, 'M'},
3746                 {"msr",         required_argument,      0, 'm'},
3747                 {"out",         required_argument,      0, 'o'},
3748                 {"Package",     no_argument,            0, 'p'},
3749                 {"processor",   no_argument,            0, 'p'},
3750                 {"Summary",     no_argument,            0, 'S'},
3751                 {"TCC",         required_argument,      0, 'T'},
3752                 {"version",     no_argument,            0, 'v' },
3753                 {0,             0,                      0,  0 }
3754         };
3755
3756         progname = argv[0];
3757
3758         while ((opt = getopt_long_only(argc, argv, "+C:c:Ddhi:JM:m:o:PpST:v",
3759                                 long_options, &option_index)) != -1) {
3760                 switch (opt) {
3761                 case 'C':
3762                         sscanf(optarg, "%x", &extra_delta_offset64);
3763                         break;
3764                 case 'c':
3765                         sscanf(optarg, "%x", &extra_delta_offset32);
3766                         break;
3767                 case 'D':
3768                         dump_only++;
3769                         break;
3770                 case 'd':
3771                         debug++;
3772                         break;
3773                 case 'h':
3774                 default:
3775                         help();
3776                         exit(1);
3777                 case 'i':
3778                         {
3779                                 double interval = strtod(optarg, NULL);
3780
3781                                 if (interval < 0.001) {
3782                                         fprintf(outf, "interval %f seconds is too small\n",
3783                                                 interval);
3784                                         exit(2);
3785                                 }
3786
3787                                 interval_ts.tv_sec = interval;
3788                                 interval_ts.tv_nsec = (interval - interval_ts.tv_sec) * 1000000000;
3789                         }
3790                         break;
3791                 case 'J':
3792                         rapl_joules++;
3793                         break;
3794                 case 'M':
3795                         sscanf(optarg, "%x", &extra_msr_offset64);
3796                         break;
3797                 case 'm':
3798                         sscanf(optarg, "%x", &extra_msr_offset32);
3799                         break;
3800                 case 'o':
3801                         outf = fopen_or_die(optarg, "w");
3802                         break;
3803                 case 'P':
3804                         show_pkg_only++;
3805                         break;
3806                 case 'p':
3807                         show_core_only++;
3808                         break;
3809                 case 'S':
3810                         summary_only++;
3811                         break;
3812                 case 'T':
3813                         tcc_activation_temp_override = atoi(optarg);
3814                         break;
3815                 case 'v':
3816                         print_version();
3817                         exit(0);
3818                         break;
3819                 }
3820         }
3821 }
3822
3823 int main(int argc, char **argv)
3824 {
3825         outf = stderr;
3826
3827         cmdline(argc, argv);
3828
3829         if (debug)
3830                 print_version();
3831
3832         turbostat_init();
3833
3834         /* dump counters and exit */
3835         if (dump_only)
3836                 return get_and_dump_counters();
3837
3838         /*
3839          * if any params left, it must be a command to fork
3840          */
3841         if (argc - optind)
3842                 return fork_it(argv + optind);
3843         else
3844                 turbostat_loop();
3845
3846         return 0;
3847 }