1103a8feaSLen Brown /* 2103a8feaSLen Brown * turbostat -- show CPU frequency and C-state residency 3103a8feaSLen Brown * on modern Intel turbo-capable processors. 4103a8feaSLen Brown * 5144b44b1SLen Brown * Copyright (c) 2013 Intel Corporation. 6103a8feaSLen Brown * Len Brown <len.brown@intel.com> 7103a8feaSLen Brown * 8103a8feaSLen Brown * This program is free software; you can redistribute it and/or modify it 9103a8feaSLen Brown * under the terms and conditions of the GNU General Public License, 10103a8feaSLen Brown * version 2, as published by the Free Software Foundation. 11103a8feaSLen Brown * 12103a8feaSLen Brown * This program is distributed in the hope it will be useful, but WITHOUT 13103a8feaSLen Brown * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14103a8feaSLen Brown * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15103a8feaSLen Brown * more details. 16103a8feaSLen Brown * 17103a8feaSLen Brown * You should have received a copy of the GNU General Public License along with 18103a8feaSLen Brown * this program; if not, write to the Free Software Foundation, Inc., 19103a8feaSLen Brown * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 20103a8feaSLen Brown */ 21103a8feaSLen Brown 2288c3281fSLen Brown #define _GNU_SOURCE 23b731f311SJosh Triplett #include MSRHEADER 2495aebc44SJosh Triplett #include <stdarg.h> 25103a8feaSLen Brown #include <stdio.h> 26b2c95d90SJosh Triplett #include <err.h> 27103a8feaSLen Brown #include <unistd.h> 28103a8feaSLen Brown #include <sys/types.h> 29103a8feaSLen Brown #include <sys/wait.h> 30103a8feaSLen Brown #include <sys/stat.h> 31103a8feaSLen Brown #include <sys/resource.h> 32103a8feaSLen Brown #include <fcntl.h> 33103a8feaSLen Brown #include <signal.h> 34103a8feaSLen Brown #include <sys/time.h> 35103a8feaSLen Brown #include <stdlib.h> 36103a8feaSLen Brown #include <dirent.h> 37103a8feaSLen Brown #include <string.h> 38103a8feaSLen Brown #include <ctype.h> 3988c3281fSLen Brown #include <sched.h> 402b92865eSJosh Triplett #include <cpuid.h> 4198481e79SLen Brown #include <linux/capability.h> 4298481e79SLen Brown #include <errno.h> 43103a8feaSLen Brown 44103a8feaSLen Brown char *proc_stat = "/proc/stat"; 45103a8feaSLen Brown unsigned int interval_sec = 5; /* set with -i interval_sec */ 46103a8feaSLen Brown unsigned int verbose; /* set with -v */ 47889facbeSLen Brown unsigned int rapl_verbose; /* set with -R */ 485c56be9aSDirk Brandewie unsigned int rapl_joules; /* set with -J */ 49889facbeSLen Brown unsigned int thermal_verbose; /* set with -T */ 50f591c38bSAndy Shevchenko unsigned int summary_only; /* set with -S */ 513b4d5c7fSAndy Shevchenko unsigned int dump_only; /* set with -s */ 52103a8feaSLen Brown unsigned int skip_c0; 53103a8feaSLen Brown unsigned int skip_c1; 54103a8feaSLen Brown unsigned int do_nhm_cstates; 55103a8feaSLen Brown unsigned int do_snb_cstates; 56ca58710fSKristen Carlson Accardi unsigned int do_c8_c9_c10; 57144b44b1SLen Brown unsigned int do_slm_cstates; 58144b44b1SLen Brown unsigned int use_c1_residency_msr; 59103a8feaSLen Brown unsigned int has_aperf; 60889facbeSLen Brown unsigned int has_epb; 61fc04cc67SLen Brown unsigned int units = 1000000; /* MHz etc */ 62103a8feaSLen Brown unsigned int genuine_intel; 63103a8feaSLen Brown unsigned int has_invariant_tsc; 64d7899447SLen Brown unsigned int do_nhm_platform_info; 65d7899447SLen Brown unsigned int do_nhm_turbo_ratio_limit; 666574a5d5SLen Brown unsigned int do_ivt_turbo_ratio_limit; 672f32edf1SLen Brown unsigned int extra_msr_offset32; 682f32edf1SLen Brown unsigned int extra_msr_offset64; 698e180f3cSLen Brown unsigned int extra_delta_offset32; 708e180f3cSLen Brown unsigned int extra_delta_offset64; 711ed51011SLen Brown int do_smi; 72103a8feaSLen Brown double bclk; 73103a8feaSLen Brown unsigned int show_pkg; 74103a8feaSLen Brown unsigned int show_core; 75103a8feaSLen Brown unsigned int show_cpu; 76c98d5d94SLen Brown unsigned int show_pkg_only; 77c98d5d94SLen Brown unsigned int show_core_only; 78c98d5d94SLen Brown char *output_buffer, *outp; 79889facbeSLen Brown unsigned int do_rapl; 80889facbeSLen Brown unsigned int do_dts; 81889facbeSLen Brown unsigned int do_ptm; 82889facbeSLen Brown unsigned int tcc_activation_temp; 83889facbeSLen Brown unsigned int tcc_activation_temp_override; 84889facbeSLen Brown double rapl_power_units, rapl_energy_units, rapl_time_units; 85889facbeSLen Brown double rapl_joule_counter_range; 863a9a941dSLen Brown unsigned int do_core_perf_limit_reasons; 873a9a941dSLen Brown unsigned int do_gfx_perf_limit_reasons; 883a9a941dSLen Brown unsigned int do_ring_perf_limit_reasons; 89889facbeSLen Brown 90889facbeSLen Brown #define RAPL_PKG (1 << 0) 91e6f9bb3cSLen Brown /* 0x610 MSR_PKG_POWER_LIMIT */ 92e6f9bb3cSLen Brown /* 0x611 MSR_PKG_ENERGY_STATUS */ 93e6f9bb3cSLen Brown #define RAPL_PKG_PERF_STATUS (1 << 1) 94e6f9bb3cSLen Brown /* 0x613 MSR_PKG_PERF_STATUS */ 95e6f9bb3cSLen Brown #define RAPL_PKG_POWER_INFO (1 << 2) 96e6f9bb3cSLen Brown /* 0x614 MSR_PKG_POWER_INFO */ 97e6f9bb3cSLen Brown 98889facbeSLen Brown #define RAPL_DRAM (1 << 3) 99e6f9bb3cSLen Brown /* 0x618 MSR_DRAM_POWER_LIMIT */ 100e6f9bb3cSLen Brown /* 0x619 MSR_DRAM_ENERGY_STATUS */ 101e6f9bb3cSLen Brown /* 0x61c MSR_DRAM_POWER_INFO */ 102e6f9bb3cSLen Brown #define RAPL_DRAM_PERF_STATUS (1 << 4) 103e6f9bb3cSLen Brown /* 0x61b MSR_DRAM_PERF_STATUS */ 104e6f9bb3cSLen Brown 105e6f9bb3cSLen Brown #define RAPL_CORES (1 << 5) 106e6f9bb3cSLen Brown /* 0x638 MSR_PP0_POWER_LIMIT */ 107e6f9bb3cSLen Brown /* 0x639 MSR_PP0_ENERGY_STATUS */ 108e6f9bb3cSLen Brown #define RAPL_CORE_POLICY (1 << 6) 109e6f9bb3cSLen Brown /* 0x63a MSR_PP0_POLICY */ 110e6f9bb3cSLen Brown 111e6f9bb3cSLen Brown 112e6f9bb3cSLen Brown #define RAPL_GFX (1 << 7) 113e6f9bb3cSLen Brown /* 0x640 MSR_PP1_POWER_LIMIT */ 114e6f9bb3cSLen Brown /* 0x641 MSR_PP1_ENERGY_STATUS */ 115e6f9bb3cSLen Brown /* 0x642 MSR_PP1_POLICY */ 116889facbeSLen Brown #define TJMAX_DEFAULT 100 117889facbeSLen Brown 118889facbeSLen Brown #define MAX(a, b) ((a) > (b) ? (a) : (b)) 119103a8feaSLen Brown 120103a8feaSLen Brown int aperf_mperf_unstable; 121103a8feaSLen Brown int backwards_count; 122103a8feaSLen Brown char *progname; 123103a8feaSLen Brown 124c98d5d94SLen Brown cpu_set_t *cpu_present_set, *cpu_affinity_set; 125c98d5d94SLen Brown size_t cpu_present_setsize, cpu_affinity_setsize; 126c98d5d94SLen Brown 127c98d5d94SLen Brown struct thread_data { 128c98d5d94SLen Brown unsigned long long tsc; 129c98d5d94SLen Brown unsigned long long aperf; 130c98d5d94SLen Brown unsigned long long mperf; 131144b44b1SLen Brown unsigned long long c1; 1322f32edf1SLen Brown unsigned long long extra_msr64; 1338e180f3cSLen Brown unsigned long long extra_delta64; 1348e180f3cSLen Brown unsigned long long extra_msr32; 1358e180f3cSLen Brown unsigned long long extra_delta32; 1361ed51011SLen Brown unsigned int smi_count; 137c98d5d94SLen Brown unsigned int cpu_id; 138c98d5d94SLen Brown unsigned int flags; 139c98d5d94SLen Brown #define CPU_IS_FIRST_THREAD_IN_CORE 0x2 140c98d5d94SLen Brown #define CPU_IS_FIRST_CORE_IN_PACKAGE 0x4 141c98d5d94SLen Brown } *thread_even, *thread_odd; 142c98d5d94SLen Brown 143c98d5d94SLen Brown struct core_data { 144c98d5d94SLen Brown unsigned long long c3; 145c98d5d94SLen Brown unsigned long long c6; 146c98d5d94SLen Brown unsigned long long c7; 147889facbeSLen Brown unsigned int core_temp_c; 148c98d5d94SLen Brown unsigned int core_id; 149c98d5d94SLen Brown } *core_even, *core_odd; 150c98d5d94SLen Brown 151c98d5d94SLen Brown struct pkg_data { 152c98d5d94SLen Brown unsigned long long pc2; 153c98d5d94SLen Brown unsigned long long pc3; 154c98d5d94SLen Brown unsigned long long pc6; 155c98d5d94SLen Brown unsigned long long pc7; 156ca58710fSKristen Carlson Accardi unsigned long long pc8; 157ca58710fSKristen Carlson Accardi unsigned long long pc9; 158ca58710fSKristen Carlson Accardi unsigned long long pc10; 159c98d5d94SLen Brown unsigned int package_id; 160889facbeSLen Brown unsigned int energy_pkg; /* MSR_PKG_ENERGY_STATUS */ 161889facbeSLen Brown unsigned int energy_dram; /* MSR_DRAM_ENERGY_STATUS */ 162889facbeSLen Brown unsigned int energy_cores; /* MSR_PP0_ENERGY_STATUS */ 163889facbeSLen Brown unsigned int energy_gfx; /* MSR_PP1_ENERGY_STATUS */ 164889facbeSLen Brown unsigned int rapl_pkg_perf_status; /* MSR_PKG_PERF_STATUS */ 165889facbeSLen Brown unsigned int rapl_dram_perf_status; /* MSR_DRAM_PERF_STATUS */ 166889facbeSLen Brown unsigned int pkg_temp_c; 167889facbeSLen Brown 168c98d5d94SLen Brown } *package_even, *package_odd; 169c98d5d94SLen Brown 170c98d5d94SLen Brown #define ODD_COUNTERS thread_odd, core_odd, package_odd 171c98d5d94SLen Brown #define EVEN_COUNTERS thread_even, core_even, package_even 172c98d5d94SLen Brown 173c98d5d94SLen Brown #define GET_THREAD(thread_base, thread_no, core_no, pkg_no) \ 174c98d5d94SLen Brown (thread_base + (pkg_no) * topo.num_cores_per_pkg * \ 175c98d5d94SLen Brown topo.num_threads_per_core + \ 176c98d5d94SLen Brown (core_no) * topo.num_threads_per_core + (thread_no)) 177c98d5d94SLen Brown #define GET_CORE(core_base, core_no, pkg_no) \ 178c98d5d94SLen Brown (core_base + (pkg_no) * topo.num_cores_per_pkg + (core_no)) 179c98d5d94SLen Brown #define GET_PKG(pkg_base, pkg_no) (pkg_base + pkg_no) 180c98d5d94SLen Brown 181c98d5d94SLen Brown struct system_summary { 182c98d5d94SLen Brown struct thread_data threads; 183c98d5d94SLen Brown struct core_data cores; 184c98d5d94SLen Brown struct pkg_data packages; 185c98d5d94SLen Brown } sum, average; 186c98d5d94SLen Brown 187c98d5d94SLen Brown 188c98d5d94SLen Brown struct topo_params { 189c98d5d94SLen Brown int num_packages; 190103a8feaSLen Brown int num_cpus; 191c98d5d94SLen Brown int num_cores; 192c98d5d94SLen Brown int max_cpu_num; 193c98d5d94SLen Brown int num_cores_per_pkg; 194c98d5d94SLen Brown int num_threads_per_core; 195c98d5d94SLen Brown } topo; 196103a8feaSLen Brown 197c98d5d94SLen Brown struct timeval tv_even, tv_odd, tv_delta; 198103a8feaSLen Brown 199c98d5d94SLen Brown void setup_all_buffers(void); 200103a8feaSLen Brown 201c98d5d94SLen Brown int cpu_is_not_present(int cpu) 202d15cf7c1SLen Brown { 203c98d5d94SLen Brown return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set); 204c98d5d94SLen Brown } 205c98d5d94SLen Brown /* 206c98d5d94SLen Brown * run func(thread, core, package) in topology order 207c98d5d94SLen Brown * skip non-present cpus 208c98d5d94SLen Brown */ 209c98d5d94SLen Brown 210c98d5d94SLen Brown int for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *), 211c98d5d94SLen Brown struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base) 212c98d5d94SLen Brown { 213c98d5d94SLen Brown int retval, pkg_no, core_no, thread_no; 214c98d5d94SLen Brown 215c98d5d94SLen Brown for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) { 216c98d5d94SLen Brown for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) { 217c98d5d94SLen Brown for (thread_no = 0; thread_no < 218c98d5d94SLen Brown topo.num_threads_per_core; ++thread_no) { 219c98d5d94SLen Brown struct thread_data *t; 220c98d5d94SLen Brown struct core_data *c; 221c98d5d94SLen Brown struct pkg_data *p; 222c98d5d94SLen Brown 223c98d5d94SLen Brown t = GET_THREAD(thread_base, thread_no, core_no, pkg_no); 224c98d5d94SLen Brown 225c98d5d94SLen Brown if (cpu_is_not_present(t->cpu_id)) 226c98d5d94SLen Brown continue; 227c98d5d94SLen Brown 228c98d5d94SLen Brown c = GET_CORE(core_base, core_no, pkg_no); 229c98d5d94SLen Brown p = GET_PKG(pkg_base, pkg_no); 230c98d5d94SLen Brown 231c98d5d94SLen Brown retval = func(t, c, p); 232c98d5d94SLen Brown if (retval) 233c98d5d94SLen Brown return retval; 234c98d5d94SLen Brown } 235c98d5d94SLen Brown } 236c98d5d94SLen Brown } 237d15cf7c1SLen Brown return 0; 238d15cf7c1SLen Brown } 239d15cf7c1SLen Brown 24088c3281fSLen Brown int cpu_migrate(int cpu) 24188c3281fSLen Brown { 242c98d5d94SLen Brown CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set); 243c98d5d94SLen Brown CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set); 244c98d5d94SLen Brown if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1) 24588c3281fSLen Brown return -1; 24688c3281fSLen Brown else 24788c3281fSLen Brown return 0; 24888c3281fSLen Brown } 24988c3281fSLen Brown 25015aaa346SLen Brown int get_msr(int cpu, off_t offset, unsigned long long *msr) 251103a8feaSLen Brown { 252103a8feaSLen Brown ssize_t retval; 253103a8feaSLen Brown char pathname[32]; 254103a8feaSLen Brown int fd; 255103a8feaSLen Brown 256103a8feaSLen Brown sprintf(pathname, "/dev/cpu/%d/msr", cpu); 257103a8feaSLen Brown fd = open(pathname, O_RDONLY); 25815aaa346SLen Brown if (fd < 0) 25998481e79SLen Brown err(-1, "%s open failed, try chown or chmod +r /dev/cpu/*/msr, or run as root", pathname); 260103a8feaSLen Brown 26115aaa346SLen Brown retval = pread(fd, msr, sizeof *msr, offset); 262103a8feaSLen Brown close(fd); 26315aaa346SLen Brown 26498481e79SLen Brown if (retval != sizeof *msr) 26598481e79SLen Brown err(-1, "%s offset 0x%llx read failed", pathname, (unsigned long long)offset); 26615aaa346SLen Brown 26715aaa346SLen Brown return 0; 268103a8feaSLen Brown } 269103a8feaSLen Brown 270fc04cc67SLen Brown /* 271fc04cc67SLen Brown * Example Format w/ field column widths: 272fc04cc67SLen Brown * 273fc04cc67SLen Brown * Package Core CPU Avg_MHz Bzy_MHz TSC_MHz SMI %Busy CPU_%c1 CPU_%c3 CPU_%c6 CPU_%c7 CoreTmp PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt CorWatt GFXWatt 274e7c95ff3SLen Brown * 123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678 275fc04cc67SLen Brown */ 276fc04cc67SLen Brown 277a829eb4dSLen Brown void print_header(void) 278103a8feaSLen Brown { 279103a8feaSLen Brown if (show_pkg) 280fc04cc67SLen Brown outp += sprintf(outp, " Package"); 281103a8feaSLen Brown if (show_core) 282fc04cc67SLen Brown outp += sprintf(outp, " Core"); 283103a8feaSLen Brown if (show_cpu) 284c98d5d94SLen Brown outp += sprintf(outp, " CPU"); 285103a8feaSLen Brown if (has_aperf) 286fc04cc67SLen Brown outp += sprintf(outp, " Avg_MHz"); 287d7899447SLen Brown if (has_aperf) 288fc04cc67SLen Brown outp += sprintf(outp, " %%Busy"); 289fc04cc67SLen Brown if (has_aperf) 290fc04cc67SLen Brown outp += sprintf(outp, " Bzy_MHz"); 291fc04cc67SLen Brown outp += sprintf(outp, " TSC_MHz"); 2921ed51011SLen Brown if (do_smi) 2931ed51011SLen Brown outp += sprintf(outp, " SMI"); 2948e180f3cSLen Brown if (extra_delta_offset32) 295f9240813SLen Brown outp += sprintf(outp, " count 0x%03X", extra_delta_offset32); 2968e180f3cSLen Brown if (extra_delta_offset64) 297f9240813SLen Brown outp += sprintf(outp, " COUNT 0x%03X", extra_delta_offset64); 2982f32edf1SLen Brown if (extra_msr_offset32) 2998e180f3cSLen Brown outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset32); 3002f32edf1SLen Brown if (extra_msr_offset64) 3018e180f3cSLen Brown outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset64); 302103a8feaSLen Brown if (do_nhm_cstates) 303fc04cc67SLen Brown outp += sprintf(outp, " CPU%%c1"); 304144b44b1SLen Brown if (do_nhm_cstates && !do_slm_cstates) 305fc04cc67SLen Brown outp += sprintf(outp, " CPU%%c3"); 306103a8feaSLen Brown if (do_nhm_cstates) 307fc04cc67SLen Brown outp += sprintf(outp, " CPU%%c6"); 308103a8feaSLen Brown if (do_snb_cstates) 309fc04cc67SLen Brown outp += sprintf(outp, " CPU%%c7"); 310889facbeSLen Brown 311889facbeSLen Brown if (do_dts) 312fc04cc67SLen Brown outp += sprintf(outp, " CoreTmp"); 313889facbeSLen Brown if (do_ptm) 314fc04cc67SLen Brown outp += sprintf(outp, " PkgTmp"); 315889facbeSLen Brown 316103a8feaSLen Brown if (do_snb_cstates) 317fc04cc67SLen Brown outp += sprintf(outp, " Pkg%%pc2"); 318144b44b1SLen Brown if (do_nhm_cstates && !do_slm_cstates) 319fc04cc67SLen Brown outp += sprintf(outp, " Pkg%%pc3"); 320144b44b1SLen Brown if (do_nhm_cstates && !do_slm_cstates) 321fc04cc67SLen Brown outp += sprintf(outp, " Pkg%%pc6"); 322103a8feaSLen Brown if (do_snb_cstates) 323fc04cc67SLen Brown outp += sprintf(outp, " Pkg%%pc7"); 324ca58710fSKristen Carlson Accardi if (do_c8_c9_c10) { 325fc04cc67SLen Brown outp += sprintf(outp, " Pkg%%pc8"); 326fc04cc67SLen Brown outp += sprintf(outp, " Pkg%%pc9"); 327fc04cc67SLen Brown outp += sprintf(outp, " Pk%%pc10"); 328ca58710fSKristen Carlson Accardi } 329103a8feaSLen Brown 3305c56be9aSDirk Brandewie if (do_rapl && !rapl_joules) { 331889facbeSLen Brown if (do_rapl & RAPL_PKG) 332fc04cc67SLen Brown outp += sprintf(outp, " PkgWatt"); 333889facbeSLen Brown if (do_rapl & RAPL_CORES) 334fc04cc67SLen Brown outp += sprintf(outp, " CorWatt"); 335889facbeSLen Brown if (do_rapl & RAPL_GFX) 336fc04cc67SLen Brown outp += sprintf(outp, " GFXWatt"); 337889facbeSLen Brown if (do_rapl & RAPL_DRAM) 338fc04cc67SLen Brown outp += sprintf(outp, " RAMWatt"); 339889facbeSLen Brown if (do_rapl & RAPL_PKG_PERF_STATUS) 340889facbeSLen Brown outp += sprintf(outp, " PKG_%%"); 341889facbeSLen Brown if (do_rapl & RAPL_DRAM_PERF_STATUS) 342889facbeSLen Brown outp += sprintf(outp, " RAM_%%"); 343d7899447SLen Brown } else if (do_rapl && rapl_joules) { 3445c56be9aSDirk Brandewie if (do_rapl & RAPL_PKG) 3455c56be9aSDirk Brandewie outp += sprintf(outp, " Pkg_J"); 3465c56be9aSDirk Brandewie if (do_rapl & RAPL_CORES) 3475c56be9aSDirk Brandewie outp += sprintf(outp, " Cor_J"); 3485c56be9aSDirk Brandewie if (do_rapl & RAPL_GFX) 3495c56be9aSDirk Brandewie outp += sprintf(outp, " GFX_J"); 3505c56be9aSDirk Brandewie if (do_rapl & RAPL_DRAM) 3515c56be9aSDirk Brandewie outp += sprintf(outp, " RAM_W"); 3525c56be9aSDirk Brandewie if (do_rapl & RAPL_PKG_PERF_STATUS) 3535c56be9aSDirk Brandewie outp += sprintf(outp, " PKG_%%"); 3545c56be9aSDirk Brandewie if (do_rapl & RAPL_DRAM_PERF_STATUS) 3555c56be9aSDirk Brandewie outp += sprintf(outp, " RAM_%%"); 3565c56be9aSDirk Brandewie outp += sprintf(outp, " time"); 357889facbeSLen Brown 3585c56be9aSDirk Brandewie } 359c98d5d94SLen Brown outp += sprintf(outp, "\n"); 360103a8feaSLen Brown } 361103a8feaSLen Brown 362c98d5d94SLen Brown int dump_counters(struct thread_data *t, struct core_data *c, 363c98d5d94SLen Brown struct pkg_data *p) 364103a8feaSLen Brown { 3653b4d5c7fSAndy Shevchenko outp += sprintf(outp, "t %p, c %p, p %p\n", t, c, p); 366c98d5d94SLen Brown 367c98d5d94SLen Brown if (t) { 3683b4d5c7fSAndy Shevchenko outp += sprintf(outp, "CPU: %d flags 0x%x\n", 3693b4d5c7fSAndy Shevchenko t->cpu_id, t->flags); 3703b4d5c7fSAndy Shevchenko outp += sprintf(outp, "TSC: %016llX\n", t->tsc); 3713b4d5c7fSAndy Shevchenko outp += sprintf(outp, "aperf: %016llX\n", t->aperf); 3723b4d5c7fSAndy Shevchenko outp += sprintf(outp, "mperf: %016llX\n", t->mperf); 3733b4d5c7fSAndy Shevchenko outp += sprintf(outp, "c1: %016llX\n", t->c1); 3743b4d5c7fSAndy Shevchenko outp += sprintf(outp, "msr0x%x: %08llX\n", 3758e180f3cSLen Brown extra_delta_offset32, t->extra_delta32); 3763b4d5c7fSAndy Shevchenko outp += sprintf(outp, "msr0x%x: %016llX\n", 3778e180f3cSLen Brown extra_delta_offset64, t->extra_delta64); 3783b4d5c7fSAndy Shevchenko outp += sprintf(outp, "msr0x%x: %08llX\n", 3792f32edf1SLen Brown extra_msr_offset32, t->extra_msr32); 3803b4d5c7fSAndy Shevchenko outp += sprintf(outp, "msr0x%x: %016llX\n", 3812f32edf1SLen Brown extra_msr_offset64, t->extra_msr64); 3821ed51011SLen Brown if (do_smi) 3833b4d5c7fSAndy Shevchenko outp += sprintf(outp, "SMI: %08X\n", t->smi_count); 384103a8feaSLen Brown } 385103a8feaSLen Brown 386c98d5d94SLen Brown if (c) { 3873b4d5c7fSAndy Shevchenko outp += sprintf(outp, "core: %d\n", c->core_id); 3883b4d5c7fSAndy Shevchenko outp += sprintf(outp, "c3: %016llX\n", c->c3); 3893b4d5c7fSAndy Shevchenko outp += sprintf(outp, "c6: %016llX\n", c->c6); 3903b4d5c7fSAndy Shevchenko outp += sprintf(outp, "c7: %016llX\n", c->c7); 3913b4d5c7fSAndy Shevchenko outp += sprintf(outp, "DTS: %dC\n", c->core_temp_c); 392c98d5d94SLen Brown } 393103a8feaSLen Brown 394c98d5d94SLen Brown if (p) { 3953b4d5c7fSAndy Shevchenko outp += sprintf(outp, "package: %d\n", p->package_id); 3963b4d5c7fSAndy Shevchenko outp += sprintf(outp, "pc2: %016llX\n", p->pc2); 3973b4d5c7fSAndy Shevchenko outp += sprintf(outp, "pc3: %016llX\n", p->pc3); 3983b4d5c7fSAndy Shevchenko outp += sprintf(outp, "pc6: %016llX\n", p->pc6); 3993b4d5c7fSAndy Shevchenko outp += sprintf(outp, "pc7: %016llX\n", p->pc7); 4003b4d5c7fSAndy Shevchenko outp += sprintf(outp, "pc8: %016llX\n", p->pc8); 4013b4d5c7fSAndy Shevchenko outp += sprintf(outp, "pc9: %016llX\n", p->pc9); 4023b4d5c7fSAndy Shevchenko outp += sprintf(outp, "pc10: %016llX\n", p->pc10); 4033b4d5c7fSAndy Shevchenko outp += sprintf(outp, "Joules PKG: %0X\n", p->energy_pkg); 4043b4d5c7fSAndy Shevchenko outp += sprintf(outp, "Joules COR: %0X\n", p->energy_cores); 4053b4d5c7fSAndy Shevchenko outp += sprintf(outp, "Joules GFX: %0X\n", p->energy_gfx); 4063b4d5c7fSAndy Shevchenko outp += sprintf(outp, "Joules RAM: %0X\n", p->energy_dram); 4073b4d5c7fSAndy Shevchenko outp += sprintf(outp, "Throttle PKG: %0X\n", 4083b4d5c7fSAndy Shevchenko p->rapl_pkg_perf_status); 4093b4d5c7fSAndy Shevchenko outp += sprintf(outp, "Throttle RAM: %0X\n", 4103b4d5c7fSAndy Shevchenko p->rapl_dram_perf_status); 4113b4d5c7fSAndy Shevchenko outp += sprintf(outp, "PTM: %dC\n", p->pkg_temp_c); 412c98d5d94SLen Brown } 4133b4d5c7fSAndy Shevchenko 4143b4d5c7fSAndy Shevchenko outp += sprintf(outp, "\n"); 4153b4d5c7fSAndy Shevchenko 416c98d5d94SLen Brown return 0; 417103a8feaSLen Brown } 418103a8feaSLen Brown 419e23da037SLen Brown /* 420e23da037SLen Brown * column formatting convention & formats 421e23da037SLen Brown */ 422c98d5d94SLen Brown int format_counters(struct thread_data *t, struct core_data *c, 423c98d5d94SLen Brown struct pkg_data *p) 424103a8feaSLen Brown { 425103a8feaSLen Brown double interval_float; 426fc04cc67SLen Brown char *fmt8; 427103a8feaSLen Brown 428c98d5d94SLen Brown /* if showing only 1st thread in core and this isn't one, bail out */ 429c98d5d94SLen Brown if (show_core_only && !(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) 430c98d5d94SLen Brown return 0; 431c98d5d94SLen Brown 432c98d5d94SLen Brown /* if showing only 1st thread in pkg and this isn't one, bail out */ 433c98d5d94SLen Brown if (show_pkg_only && !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 434c98d5d94SLen Brown return 0; 435c98d5d94SLen Brown 436103a8feaSLen Brown interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0; 437103a8feaSLen Brown 438c98d5d94SLen Brown /* topo columns, print blanks on 1st (average) line */ 439c98d5d94SLen Brown if (t == &average.threads) { 440103a8feaSLen Brown if (show_pkg) 441fc04cc67SLen Brown outp += sprintf(outp, " -"); 442103a8feaSLen Brown if (show_core) 443fc04cc67SLen Brown outp += sprintf(outp, " -"); 444103a8feaSLen Brown if (show_cpu) 445fc04cc67SLen Brown outp += sprintf(outp, " -"); 446103a8feaSLen Brown } else { 447c98d5d94SLen Brown if (show_pkg) { 448c98d5d94SLen Brown if (p) 449fc04cc67SLen Brown outp += sprintf(outp, "%8d", p->package_id); 450c98d5d94SLen Brown else 451fc04cc67SLen Brown outp += sprintf(outp, " -"); 452c98d5d94SLen Brown } 453c98d5d94SLen Brown if (show_core) { 454c98d5d94SLen Brown if (c) 455fc04cc67SLen Brown outp += sprintf(outp, "%8d", c->core_id); 456c98d5d94SLen Brown else 457fc04cc67SLen Brown outp += sprintf(outp, " -"); 458c98d5d94SLen Brown } 459103a8feaSLen Brown if (show_cpu) 460fc04cc67SLen Brown outp += sprintf(outp, "%8d", t->cpu_id); 461103a8feaSLen Brown } 462fc04cc67SLen Brown 463d7899447SLen Brown /* Avg_MHz */ 464fc04cc67SLen Brown if (has_aperf) 465fc04cc67SLen Brown outp += sprintf(outp, "%8.0f", 466fc04cc67SLen Brown 1.0 / units * t->aperf / interval_float); 467fc04cc67SLen Brown 468d7899447SLen Brown /* %Busy */ 469d7899447SLen Brown if (has_aperf) { 470103a8feaSLen Brown if (!skip_c0) 471fc04cc67SLen Brown outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc); 472103a8feaSLen Brown else 473fc04cc67SLen Brown outp += sprintf(outp, "********"); 474103a8feaSLen Brown } 475103a8feaSLen Brown 476d7899447SLen Brown /* Bzy_MHz */ 477fc04cc67SLen Brown if (has_aperf) 478fc04cc67SLen Brown outp += sprintf(outp, "%8.0f", 479fc04cc67SLen Brown 1.0 * t->tsc / units * t->aperf / t->mperf / interval_float); 480103a8feaSLen Brown 481d7899447SLen Brown /* TSC_MHz */ 482fc04cc67SLen Brown outp += sprintf(outp, "%8.0f", 1.0 * t->tsc/units/interval_float); 483103a8feaSLen Brown 4841ed51011SLen Brown /* SMI */ 4851ed51011SLen Brown if (do_smi) 486fc04cc67SLen Brown outp += sprintf(outp, "%8d", t->smi_count); 4871ed51011SLen Brown 4888e180f3cSLen Brown /* delta */ 4898e180f3cSLen Brown if (extra_delta_offset32) 4908e180f3cSLen Brown outp += sprintf(outp, " %11llu", t->extra_delta32); 4918e180f3cSLen Brown 4928e180f3cSLen Brown /* DELTA */ 4938e180f3cSLen Brown if (extra_delta_offset64) 4948e180f3cSLen Brown outp += sprintf(outp, " %11llu", t->extra_delta64); 4952f32edf1SLen Brown /* msr */ 4962f32edf1SLen Brown if (extra_msr_offset32) 4978e180f3cSLen Brown outp += sprintf(outp, " 0x%08llx", t->extra_msr32); 4982f32edf1SLen Brown 499130ff304SLen Brown /* MSR */ 5002f32edf1SLen Brown if (extra_msr_offset64) 5012f32edf1SLen Brown outp += sprintf(outp, " 0x%016llx", t->extra_msr64); 502130ff304SLen Brown 503103a8feaSLen Brown if (do_nhm_cstates) { 504103a8feaSLen Brown if (!skip_c1) 505fc04cc67SLen Brown outp += sprintf(outp, "%8.2f", 100.0 * t->c1/t->tsc); 506103a8feaSLen Brown else 507fc04cc67SLen Brown outp += sprintf(outp, "********"); 508103a8feaSLen Brown } 509c98d5d94SLen Brown 510c98d5d94SLen Brown /* print per-core data only for 1st thread in core */ 511c98d5d94SLen Brown if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) 512c98d5d94SLen Brown goto done; 513c98d5d94SLen Brown 514144b44b1SLen Brown if (do_nhm_cstates && !do_slm_cstates) 515fc04cc67SLen Brown outp += sprintf(outp, "%8.2f", 100.0 * c->c3/t->tsc); 516103a8feaSLen Brown if (do_nhm_cstates) 517fc04cc67SLen Brown outp += sprintf(outp, "%8.2f", 100.0 * c->c6/t->tsc); 518103a8feaSLen Brown if (do_snb_cstates) 519fc04cc67SLen Brown outp += sprintf(outp, "%8.2f", 100.0 * c->c7/t->tsc); 520c98d5d94SLen Brown 521889facbeSLen Brown if (do_dts) 522fc04cc67SLen Brown outp += sprintf(outp, "%8d", c->core_temp_c); 523889facbeSLen Brown 524c98d5d94SLen Brown /* print per-package data only for 1st core in package */ 525c98d5d94SLen Brown if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 526c98d5d94SLen Brown goto done; 527c98d5d94SLen Brown 528889facbeSLen Brown if (do_ptm) 529fc04cc67SLen Brown outp += sprintf(outp, "%8d", p->pkg_temp_c); 530889facbeSLen Brown 531103a8feaSLen Brown if (do_snb_cstates) 532fc04cc67SLen Brown outp += sprintf(outp, "%8.2f", 100.0 * p->pc2/t->tsc); 533144b44b1SLen Brown if (do_nhm_cstates && !do_slm_cstates) 534fc04cc67SLen Brown outp += sprintf(outp, "%8.2f", 100.0 * p->pc3/t->tsc); 535144b44b1SLen Brown if (do_nhm_cstates && !do_slm_cstates) 536fc04cc67SLen Brown outp += sprintf(outp, "%8.2f", 100.0 * p->pc6/t->tsc); 537103a8feaSLen Brown if (do_snb_cstates) 538fc04cc67SLen Brown outp += sprintf(outp, "%8.2f", 100.0 * p->pc7/t->tsc); 539ca58710fSKristen Carlson Accardi if (do_c8_c9_c10) { 540fc04cc67SLen Brown outp += sprintf(outp, "%8.2f", 100.0 * p->pc8/t->tsc); 541fc04cc67SLen Brown outp += sprintf(outp, "%8.2f", 100.0 * p->pc9/t->tsc); 542fc04cc67SLen Brown outp += sprintf(outp, "%8.2f", 100.0 * p->pc10/t->tsc); 543ca58710fSKristen Carlson Accardi } 544889facbeSLen Brown 545889facbeSLen Brown /* 546889facbeSLen Brown * If measurement interval exceeds minimum RAPL Joule Counter range, 547889facbeSLen Brown * indicate that results are suspect by printing "**" in fraction place. 548889facbeSLen Brown */ 549fc04cc67SLen Brown if (interval_float < rapl_joule_counter_range) 550fc04cc67SLen Brown fmt8 = "%8.2f"; 551fc04cc67SLen Brown else 552fc04cc67SLen Brown fmt8 = " %6.0f**"; 553889facbeSLen Brown 5545c56be9aSDirk Brandewie if (do_rapl && !rapl_joules) { 555889facbeSLen Brown if (do_rapl & RAPL_PKG) 556fc04cc67SLen Brown outp += sprintf(outp, fmt8, p->energy_pkg * rapl_energy_units / interval_float); 557889facbeSLen Brown if (do_rapl & RAPL_CORES) 558fc04cc67SLen Brown outp += sprintf(outp, fmt8, p->energy_cores * rapl_energy_units / interval_float); 559889facbeSLen Brown if (do_rapl & RAPL_GFX) 560fc04cc67SLen Brown outp += sprintf(outp, fmt8, p->energy_gfx * rapl_energy_units / interval_float); 561889facbeSLen Brown if (do_rapl & RAPL_DRAM) 562fc04cc67SLen Brown outp += sprintf(outp, fmt8, p->energy_dram * rapl_energy_units / interval_float); 563889facbeSLen Brown if (do_rapl & RAPL_PKG_PERF_STATUS) 564fc04cc67SLen Brown outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float); 565889facbeSLen Brown if (do_rapl & RAPL_DRAM_PERF_STATUS) 566fc04cc67SLen Brown outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float); 567d7899447SLen Brown } else if (do_rapl && rapl_joules) { 5685c56be9aSDirk Brandewie if (do_rapl & RAPL_PKG) 569fc04cc67SLen Brown outp += sprintf(outp, fmt8, 5705c56be9aSDirk Brandewie p->energy_pkg * rapl_energy_units); 5715c56be9aSDirk Brandewie if (do_rapl & RAPL_CORES) 572fc04cc67SLen Brown outp += sprintf(outp, fmt8, 5735c56be9aSDirk Brandewie p->energy_cores * rapl_energy_units); 5745c56be9aSDirk Brandewie if (do_rapl & RAPL_GFX) 575fc04cc67SLen Brown outp += sprintf(outp, fmt8, 5765c56be9aSDirk Brandewie p->energy_gfx * rapl_energy_units); 5775c56be9aSDirk Brandewie if (do_rapl & RAPL_DRAM) 578fc04cc67SLen Brown outp += sprintf(outp, fmt8, 5795c56be9aSDirk Brandewie p->energy_dram * rapl_energy_units); 5805c56be9aSDirk Brandewie if (do_rapl & RAPL_PKG_PERF_STATUS) 581fc04cc67SLen Brown outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float); 5825c56be9aSDirk Brandewie if (do_rapl & RAPL_DRAM_PERF_STATUS) 583fc04cc67SLen Brown outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float); 584889facbeSLen Brown 585d7899447SLen Brown outp += sprintf(outp, fmt8, interval_float); 5865c56be9aSDirk Brandewie } 587c98d5d94SLen Brown done: 588c98d5d94SLen Brown outp += sprintf(outp, "\n"); 589c98d5d94SLen Brown 590c98d5d94SLen Brown return 0; 591103a8feaSLen Brown } 592103a8feaSLen Brown 593c98d5d94SLen Brown void flush_stdout() 594103a8feaSLen Brown { 595c98d5d94SLen Brown fputs(output_buffer, stdout); 596ddac0d68SLen Brown fflush(stdout); 597c98d5d94SLen Brown outp = output_buffer; 598c98d5d94SLen Brown } 599c98d5d94SLen Brown void flush_stderr() 600c98d5d94SLen Brown { 601c98d5d94SLen Brown fputs(output_buffer, stderr); 602c98d5d94SLen Brown outp = output_buffer; 603c98d5d94SLen Brown } 604c98d5d94SLen Brown void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) 605c98d5d94SLen Brown { 606e23da037SLen Brown static int printed; 607103a8feaSLen Brown 608e23da037SLen Brown if (!printed || !summary_only) 609103a8feaSLen Brown print_header(); 610103a8feaSLen Brown 611c98d5d94SLen Brown if (topo.num_cpus > 1) 612c98d5d94SLen Brown format_counters(&average.threads, &average.cores, 613c98d5d94SLen Brown &average.packages); 614103a8feaSLen Brown 615e23da037SLen Brown printed = 1; 616e23da037SLen Brown 617e23da037SLen Brown if (summary_only) 618e23da037SLen Brown return; 619e23da037SLen Brown 620c98d5d94SLen Brown for_all_cpus(format_counters, t, c, p); 621103a8feaSLen Brown } 622103a8feaSLen Brown 623889facbeSLen Brown #define DELTA_WRAP32(new, old) \ 624889facbeSLen Brown if (new > old) { \ 625889facbeSLen Brown old = new - old; \ 626889facbeSLen Brown } else { \ 627889facbeSLen Brown old = 0x100000000 + new - old; \ 628889facbeSLen Brown } 629889facbeSLen Brown 630c98d5d94SLen Brown void 631c98d5d94SLen Brown delta_package(struct pkg_data *new, struct pkg_data *old) 632103a8feaSLen Brown { 633c98d5d94SLen Brown old->pc2 = new->pc2 - old->pc2; 634c98d5d94SLen Brown old->pc3 = new->pc3 - old->pc3; 635c98d5d94SLen Brown old->pc6 = new->pc6 - old->pc6; 636c98d5d94SLen Brown old->pc7 = new->pc7 - old->pc7; 637ca58710fSKristen Carlson Accardi old->pc8 = new->pc8 - old->pc8; 638ca58710fSKristen Carlson Accardi old->pc9 = new->pc9 - old->pc9; 639ca58710fSKristen Carlson Accardi old->pc10 = new->pc10 - old->pc10; 640889facbeSLen Brown old->pkg_temp_c = new->pkg_temp_c; 641889facbeSLen Brown 642889facbeSLen Brown DELTA_WRAP32(new->energy_pkg, old->energy_pkg); 643889facbeSLen Brown DELTA_WRAP32(new->energy_cores, old->energy_cores); 644889facbeSLen Brown DELTA_WRAP32(new->energy_gfx, old->energy_gfx); 645889facbeSLen Brown DELTA_WRAP32(new->energy_dram, old->energy_dram); 646889facbeSLen Brown DELTA_WRAP32(new->rapl_pkg_perf_status, old->rapl_pkg_perf_status); 647889facbeSLen Brown DELTA_WRAP32(new->rapl_dram_perf_status, old->rapl_dram_perf_status); 648103a8feaSLen Brown } 649103a8feaSLen Brown 650c98d5d94SLen Brown void 651c98d5d94SLen Brown delta_core(struct core_data *new, struct core_data *old) 652c98d5d94SLen Brown { 653c98d5d94SLen Brown old->c3 = new->c3 - old->c3; 654c98d5d94SLen Brown old->c6 = new->c6 - old->c6; 655c98d5d94SLen Brown old->c7 = new->c7 - old->c7; 656889facbeSLen Brown old->core_temp_c = new->core_temp_c; 657103a8feaSLen Brown } 658c98d5d94SLen Brown 659c3ae331dSLen Brown /* 660c3ae331dSLen Brown * old = new - old 661c3ae331dSLen Brown */ 662c98d5d94SLen Brown void 663c98d5d94SLen Brown delta_thread(struct thread_data *new, struct thread_data *old, 664c98d5d94SLen Brown struct core_data *core_delta) 665c98d5d94SLen Brown { 666c98d5d94SLen Brown old->tsc = new->tsc - old->tsc; 667c98d5d94SLen Brown 668103a8feaSLen Brown /* check for TSC < 1 Mcycles over interval */ 669b2c95d90SJosh Triplett if (old->tsc < (1000 * 1000)) 670b2c95d90SJosh Triplett errx(-3, "Insanely slow TSC rate, TSC stops in idle?\n" 671b2c95d90SJosh Triplett "You can disable all c-states by booting with \"idle=poll\"\n" 672b2c95d90SJosh Triplett "or just the deep ones with \"processor.max_cstate=1\""); 673103a8feaSLen Brown 674c98d5d94SLen Brown old->c1 = new->c1 - old->c1; 675c98d5d94SLen Brown 676*a729617cSLen Brown if (has_aperf) { 677c98d5d94SLen Brown if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) { 678c98d5d94SLen Brown old->aperf = new->aperf - old->aperf; 679c98d5d94SLen Brown old->mperf = new->mperf - old->mperf; 680c98d5d94SLen Brown } else { 681c98d5d94SLen Brown 682103a8feaSLen Brown if (!aperf_mperf_unstable) { 683103a8feaSLen Brown fprintf(stderr, "%s: APERF or MPERF went backwards *\n", progname); 684103a8feaSLen Brown fprintf(stderr, "* Frequency results do not cover entire interval *\n"); 685103a8feaSLen Brown fprintf(stderr, "* fix this by running Linux-2.6.30 or later *\n"); 686103a8feaSLen Brown 687103a8feaSLen Brown aperf_mperf_unstable = 1; 688103a8feaSLen Brown } 689103a8feaSLen Brown /* 690103a8feaSLen Brown * mperf delta is likely a huge "positive" number 691103a8feaSLen Brown * can not use it for calculating c0 time 692103a8feaSLen Brown */ 693103a8feaSLen Brown skip_c0 = 1; 694103a8feaSLen Brown skip_c1 = 1; 695103a8feaSLen Brown } 696*a729617cSLen Brown } 697103a8feaSLen Brown 698c98d5d94SLen Brown 699144b44b1SLen Brown if (use_c1_residency_msr) { 700144b44b1SLen Brown /* 701144b44b1SLen Brown * Some models have a dedicated C1 residency MSR, 702144b44b1SLen Brown * which should be more accurate than the derivation below. 703144b44b1SLen Brown */ 704144b44b1SLen Brown } else { 705103a8feaSLen Brown /* 706c3ae331dSLen Brown * As counter collection is not atomic, 707c3ae331dSLen Brown * it is possible for mperf's non-halted cycles + idle states 708103a8feaSLen Brown * to exceed TSC's all cycles: show c1 = 0% in that case. 709103a8feaSLen Brown */ 710c3ae331dSLen Brown if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc) 711c98d5d94SLen Brown old->c1 = 0; 712c98d5d94SLen Brown else { 713c98d5d94SLen Brown /* normal case, derive c1 */ 714c98d5d94SLen Brown old->c1 = old->tsc - old->mperf - core_delta->c3 715c98d5d94SLen Brown - core_delta->c6 - core_delta->c7; 716c98d5d94SLen Brown } 717144b44b1SLen Brown } 718c3ae331dSLen Brown 719c98d5d94SLen Brown if (old->mperf == 0) { 720c3ae331dSLen Brown if (verbose > 1) fprintf(stderr, "cpu%d MPERF 0!\n", old->cpu_id); 721c98d5d94SLen Brown old->mperf = 1; /* divide by 0 protection */ 722c98d5d94SLen Brown } 723103a8feaSLen Brown 7248e180f3cSLen Brown old->extra_delta32 = new->extra_delta32 - old->extra_delta32; 7258e180f3cSLen Brown old->extra_delta32 &= 0xFFFFFFFF; 7268e180f3cSLen Brown 7278e180f3cSLen Brown old->extra_delta64 = new->extra_delta64 - old->extra_delta64; 7288e180f3cSLen Brown 729103a8feaSLen Brown /* 7308e180f3cSLen Brown * Extra MSR is just a snapshot, simply copy latest w/o subtracting 731103a8feaSLen Brown */ 7322f32edf1SLen Brown old->extra_msr32 = new->extra_msr32; 7332f32edf1SLen Brown old->extra_msr64 = new->extra_msr64; 7341ed51011SLen Brown 7351ed51011SLen Brown if (do_smi) 7361ed51011SLen Brown old->smi_count = new->smi_count - old->smi_count; 737103a8feaSLen Brown } 738c98d5d94SLen Brown 739c98d5d94SLen Brown int delta_cpu(struct thread_data *t, struct core_data *c, 740c98d5d94SLen Brown struct pkg_data *p, struct thread_data *t2, 741c98d5d94SLen Brown struct core_data *c2, struct pkg_data *p2) 742c98d5d94SLen Brown { 743c98d5d94SLen Brown /* calculate core delta only for 1st thread in core */ 744c98d5d94SLen Brown if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE) 745c98d5d94SLen Brown delta_core(c, c2); 746c98d5d94SLen Brown 747c98d5d94SLen Brown /* always calculate thread delta */ 748c98d5d94SLen Brown delta_thread(t, t2, c2); /* c2 is core delta */ 749c98d5d94SLen Brown 750c98d5d94SLen Brown /* calculate package delta only for 1st core in package */ 751c98d5d94SLen Brown if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE) 752c98d5d94SLen Brown delta_package(p, p2); 753c98d5d94SLen Brown 754103a8feaSLen Brown return 0; 755103a8feaSLen Brown } 756103a8feaSLen Brown 757c98d5d94SLen Brown void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) 758103a8feaSLen Brown { 759c98d5d94SLen Brown t->tsc = 0; 760c98d5d94SLen Brown t->aperf = 0; 761c98d5d94SLen Brown t->mperf = 0; 762c98d5d94SLen Brown t->c1 = 0; 763103a8feaSLen Brown 7641ed51011SLen Brown t->smi_count = 0; 7658e180f3cSLen Brown t->extra_delta32 = 0; 7668e180f3cSLen Brown t->extra_delta64 = 0; 7678e180f3cSLen Brown 768c98d5d94SLen Brown /* tells format_counters to dump all fields from this set */ 769c98d5d94SLen Brown t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE; 770c98d5d94SLen Brown 771c98d5d94SLen Brown c->c3 = 0; 772c98d5d94SLen Brown c->c6 = 0; 773c98d5d94SLen Brown c->c7 = 0; 774889facbeSLen Brown c->core_temp_c = 0; 775c98d5d94SLen Brown 776c98d5d94SLen Brown p->pc2 = 0; 777c98d5d94SLen Brown p->pc3 = 0; 778c98d5d94SLen Brown p->pc6 = 0; 779c98d5d94SLen Brown p->pc7 = 0; 780ca58710fSKristen Carlson Accardi p->pc8 = 0; 781ca58710fSKristen Carlson Accardi p->pc9 = 0; 782ca58710fSKristen Carlson Accardi p->pc10 = 0; 783889facbeSLen Brown 784889facbeSLen Brown p->energy_pkg = 0; 785889facbeSLen Brown p->energy_dram = 0; 786889facbeSLen Brown p->energy_cores = 0; 787889facbeSLen Brown p->energy_gfx = 0; 788889facbeSLen Brown p->rapl_pkg_perf_status = 0; 789889facbeSLen Brown p->rapl_dram_perf_status = 0; 790889facbeSLen Brown p->pkg_temp_c = 0; 791103a8feaSLen Brown } 792c98d5d94SLen Brown int sum_counters(struct thread_data *t, struct core_data *c, 793c98d5d94SLen Brown struct pkg_data *p) 794103a8feaSLen Brown { 795c98d5d94SLen Brown average.threads.tsc += t->tsc; 796c98d5d94SLen Brown average.threads.aperf += t->aperf; 797c98d5d94SLen Brown average.threads.mperf += t->mperf; 798c98d5d94SLen Brown average.threads.c1 += t->c1; 79915aaa346SLen Brown 8008e180f3cSLen Brown average.threads.extra_delta32 += t->extra_delta32; 8018e180f3cSLen Brown average.threads.extra_delta64 += t->extra_delta64; 8028e180f3cSLen Brown 803c98d5d94SLen Brown /* sum per-core values only for 1st thread in core */ 804c98d5d94SLen Brown if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) 805c98d5d94SLen Brown return 0; 806c98d5d94SLen Brown 807c98d5d94SLen Brown average.cores.c3 += c->c3; 808c98d5d94SLen Brown average.cores.c6 += c->c6; 809c98d5d94SLen Brown average.cores.c7 += c->c7; 810c98d5d94SLen Brown 811889facbeSLen Brown average.cores.core_temp_c = MAX(average.cores.core_temp_c, c->core_temp_c); 812889facbeSLen Brown 813c98d5d94SLen Brown /* sum per-pkg values only for 1st core in pkg */ 814c98d5d94SLen Brown if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 815c98d5d94SLen Brown return 0; 816c98d5d94SLen Brown 817c98d5d94SLen Brown average.packages.pc2 += p->pc2; 818c98d5d94SLen Brown average.packages.pc3 += p->pc3; 819c98d5d94SLen Brown average.packages.pc6 += p->pc6; 820c98d5d94SLen Brown average.packages.pc7 += p->pc7; 821ca58710fSKristen Carlson Accardi average.packages.pc8 += p->pc8; 822ca58710fSKristen Carlson Accardi average.packages.pc9 += p->pc9; 823ca58710fSKristen Carlson Accardi average.packages.pc10 += p->pc10; 824c98d5d94SLen Brown 825889facbeSLen Brown average.packages.energy_pkg += p->energy_pkg; 826889facbeSLen Brown average.packages.energy_dram += p->energy_dram; 827889facbeSLen Brown average.packages.energy_cores += p->energy_cores; 828889facbeSLen Brown average.packages.energy_gfx += p->energy_gfx; 829889facbeSLen Brown 830889facbeSLen Brown average.packages.pkg_temp_c = MAX(average.packages.pkg_temp_c, p->pkg_temp_c); 831889facbeSLen Brown 832889facbeSLen Brown average.packages.rapl_pkg_perf_status += p->rapl_pkg_perf_status; 833889facbeSLen Brown average.packages.rapl_dram_perf_status += p->rapl_dram_perf_status; 834c98d5d94SLen Brown return 0; 835c98d5d94SLen Brown } 836c98d5d94SLen Brown /* 837c98d5d94SLen Brown * sum the counters for all cpus in the system 838c98d5d94SLen Brown * compute the weighted average 839c98d5d94SLen Brown */ 840c98d5d94SLen Brown void compute_average(struct thread_data *t, struct core_data *c, 841c98d5d94SLen Brown struct pkg_data *p) 842c98d5d94SLen Brown { 843c98d5d94SLen Brown clear_counters(&average.threads, &average.cores, &average.packages); 844c98d5d94SLen Brown 845c98d5d94SLen Brown for_all_cpus(sum_counters, t, c, p); 846c98d5d94SLen Brown 847c98d5d94SLen Brown average.threads.tsc /= topo.num_cpus; 848c98d5d94SLen Brown average.threads.aperf /= topo.num_cpus; 849c98d5d94SLen Brown average.threads.mperf /= topo.num_cpus; 850c98d5d94SLen Brown average.threads.c1 /= topo.num_cpus; 851c98d5d94SLen Brown 8528e180f3cSLen Brown average.threads.extra_delta32 /= topo.num_cpus; 8538e180f3cSLen Brown average.threads.extra_delta32 &= 0xFFFFFFFF; 8548e180f3cSLen Brown 8558e180f3cSLen Brown average.threads.extra_delta64 /= topo.num_cpus; 8568e180f3cSLen Brown 857c98d5d94SLen Brown average.cores.c3 /= topo.num_cores; 858c98d5d94SLen Brown average.cores.c6 /= topo.num_cores; 859c98d5d94SLen Brown average.cores.c7 /= topo.num_cores; 860c98d5d94SLen Brown 861c98d5d94SLen Brown average.packages.pc2 /= topo.num_packages; 862c98d5d94SLen Brown average.packages.pc3 /= topo.num_packages; 863c98d5d94SLen Brown average.packages.pc6 /= topo.num_packages; 864c98d5d94SLen Brown average.packages.pc7 /= topo.num_packages; 865ca58710fSKristen Carlson Accardi 866ca58710fSKristen Carlson Accardi average.packages.pc8 /= topo.num_packages; 867ca58710fSKristen Carlson Accardi average.packages.pc9 /= topo.num_packages; 868ca58710fSKristen Carlson Accardi average.packages.pc10 /= topo.num_packages; 869c98d5d94SLen Brown } 870c98d5d94SLen Brown 871c98d5d94SLen Brown static unsigned long long rdtsc(void) 872c98d5d94SLen Brown { 873c98d5d94SLen Brown unsigned int low, high; 874c98d5d94SLen Brown 875c98d5d94SLen Brown asm volatile("rdtsc" : "=a" (low), "=d" (high)); 876c98d5d94SLen Brown 877c98d5d94SLen Brown return low | ((unsigned long long)high) << 32; 878c98d5d94SLen Brown } 879c98d5d94SLen Brown 880c98d5d94SLen Brown 881c98d5d94SLen Brown /* 882c98d5d94SLen Brown * get_counters(...) 883c98d5d94SLen Brown * migrate to cpu 884c98d5d94SLen Brown * acquire and record local counters for that cpu 885c98d5d94SLen Brown */ 886c98d5d94SLen Brown int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) 887c98d5d94SLen Brown { 888c98d5d94SLen Brown int cpu = t->cpu_id; 889889facbeSLen Brown unsigned long long msr; 890c98d5d94SLen Brown 891e52966c0SLen Brown if (cpu_migrate(cpu)) { 892e52966c0SLen Brown fprintf(stderr, "Could not migrate to CPU %d\n", cpu); 89315aaa346SLen Brown return -1; 894e52966c0SLen Brown } 89515aaa346SLen Brown 896c98d5d94SLen Brown t->tsc = rdtsc(); /* we are running on local CPU of interest */ 89715aaa346SLen Brown 89815aaa346SLen Brown if (has_aperf) { 8999c63a650SLen Brown if (get_msr(cpu, MSR_IA32_APERF, &t->aperf)) 900c98d5d94SLen Brown return -3; 9019c63a650SLen Brown if (get_msr(cpu, MSR_IA32_MPERF, &t->mperf)) 902c98d5d94SLen Brown return -4; 90388c3281fSLen Brown } 90488c3281fSLen Brown 9051ed51011SLen Brown if (do_smi) { 9061ed51011SLen Brown if (get_msr(cpu, MSR_SMI_COUNT, &msr)) 9071ed51011SLen Brown return -5; 9081ed51011SLen Brown t->smi_count = msr & 0xFFFFFFFF; 9091ed51011SLen Brown } 9108e180f3cSLen Brown if (extra_delta_offset32) { 911889facbeSLen Brown if (get_msr(cpu, extra_delta_offset32, &msr)) 9122f32edf1SLen Brown return -5; 913889facbeSLen Brown t->extra_delta32 = msr & 0xFFFFFFFF; 9148e180f3cSLen Brown } 9158e180f3cSLen Brown 9168e180f3cSLen Brown if (extra_delta_offset64) 9178e180f3cSLen Brown if (get_msr(cpu, extra_delta_offset64, &t->extra_delta64)) 9188e180f3cSLen Brown return -5; 9198e180f3cSLen Brown 9208e180f3cSLen Brown if (extra_msr_offset32) { 921889facbeSLen Brown if (get_msr(cpu, extra_msr_offset32, &msr)) 9228e180f3cSLen Brown return -5; 923889facbeSLen Brown t->extra_msr32 = msr & 0xFFFFFFFF; 9248e180f3cSLen Brown } 9252f32edf1SLen Brown 9262f32edf1SLen Brown if (extra_msr_offset64) 9272f32edf1SLen Brown if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64)) 928c98d5d94SLen Brown return -5; 929c98d5d94SLen Brown 930144b44b1SLen Brown if (use_c1_residency_msr) { 931144b44b1SLen Brown if (get_msr(cpu, MSR_CORE_C1_RES, &t->c1)) 932144b44b1SLen Brown return -6; 933144b44b1SLen Brown } 934144b44b1SLen Brown 935c98d5d94SLen Brown /* collect core counters only for 1st thread in core */ 936c98d5d94SLen Brown if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) 937c98d5d94SLen Brown return 0; 938c98d5d94SLen Brown 939144b44b1SLen Brown if (do_nhm_cstates && !do_slm_cstates) { 940c98d5d94SLen Brown if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3)) 941c98d5d94SLen Brown return -6; 942144b44b1SLen Brown } 943144b44b1SLen Brown 944144b44b1SLen Brown if (do_nhm_cstates) { 945c98d5d94SLen Brown if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6)) 946c98d5d94SLen Brown return -7; 947103a8feaSLen Brown } 94815aaa346SLen Brown 94915aaa346SLen Brown if (do_snb_cstates) 950c98d5d94SLen Brown if (get_msr(cpu, MSR_CORE_C7_RESIDENCY, &c->c7)) 951c98d5d94SLen Brown return -8; 952c98d5d94SLen Brown 953889facbeSLen Brown if (do_dts) { 954889facbeSLen Brown if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr)) 955889facbeSLen Brown return -9; 956889facbeSLen Brown c->core_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F); 957889facbeSLen Brown } 958889facbeSLen Brown 959889facbeSLen Brown 960c98d5d94SLen Brown /* collect package counters only for 1st core in package */ 961c98d5d94SLen Brown if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 962c98d5d94SLen Brown return 0; 96315aaa346SLen Brown 964144b44b1SLen Brown if (do_nhm_cstates && !do_slm_cstates) { 965c98d5d94SLen Brown if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3)) 966c98d5d94SLen Brown return -9; 967c98d5d94SLen Brown if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6)) 968c98d5d94SLen Brown return -10; 96915aaa346SLen Brown } 97015aaa346SLen Brown if (do_snb_cstates) { 971c98d5d94SLen Brown if (get_msr(cpu, MSR_PKG_C2_RESIDENCY, &p->pc2)) 972c98d5d94SLen Brown return -11; 973c98d5d94SLen Brown if (get_msr(cpu, MSR_PKG_C7_RESIDENCY, &p->pc7)) 974c98d5d94SLen Brown return -12; 97515aaa346SLen Brown } 976ca58710fSKristen Carlson Accardi if (do_c8_c9_c10) { 977ca58710fSKristen Carlson Accardi if (get_msr(cpu, MSR_PKG_C8_RESIDENCY, &p->pc8)) 978ca58710fSKristen Carlson Accardi return -13; 979ca58710fSKristen Carlson Accardi if (get_msr(cpu, MSR_PKG_C9_RESIDENCY, &p->pc9)) 980ca58710fSKristen Carlson Accardi return -13; 981ca58710fSKristen Carlson Accardi if (get_msr(cpu, MSR_PKG_C10_RESIDENCY, &p->pc10)) 982ca58710fSKristen Carlson Accardi return -13; 983ca58710fSKristen Carlson Accardi } 984889facbeSLen Brown if (do_rapl & RAPL_PKG) { 985889facbeSLen Brown if (get_msr(cpu, MSR_PKG_ENERGY_STATUS, &msr)) 986889facbeSLen Brown return -13; 987889facbeSLen Brown p->energy_pkg = msr & 0xFFFFFFFF; 988889facbeSLen Brown } 989889facbeSLen Brown if (do_rapl & RAPL_CORES) { 990889facbeSLen Brown if (get_msr(cpu, MSR_PP0_ENERGY_STATUS, &msr)) 991889facbeSLen Brown return -14; 992889facbeSLen Brown p->energy_cores = msr & 0xFFFFFFFF; 993889facbeSLen Brown } 994889facbeSLen Brown if (do_rapl & RAPL_DRAM) { 995889facbeSLen Brown if (get_msr(cpu, MSR_DRAM_ENERGY_STATUS, &msr)) 996889facbeSLen Brown return -15; 997889facbeSLen Brown p->energy_dram = msr & 0xFFFFFFFF; 998889facbeSLen Brown } 999889facbeSLen Brown if (do_rapl & RAPL_GFX) { 1000889facbeSLen Brown if (get_msr(cpu, MSR_PP1_ENERGY_STATUS, &msr)) 1001889facbeSLen Brown return -16; 1002889facbeSLen Brown p->energy_gfx = msr & 0xFFFFFFFF; 1003889facbeSLen Brown } 1004889facbeSLen Brown if (do_rapl & RAPL_PKG_PERF_STATUS) { 1005889facbeSLen Brown if (get_msr(cpu, MSR_PKG_PERF_STATUS, &msr)) 1006889facbeSLen Brown return -16; 1007889facbeSLen Brown p->rapl_pkg_perf_status = msr & 0xFFFFFFFF; 1008889facbeSLen Brown } 1009889facbeSLen Brown if (do_rapl & RAPL_DRAM_PERF_STATUS) { 1010889facbeSLen Brown if (get_msr(cpu, MSR_DRAM_PERF_STATUS, &msr)) 1011889facbeSLen Brown return -16; 1012889facbeSLen Brown p->rapl_dram_perf_status = msr & 0xFFFFFFFF; 1013889facbeSLen Brown } 1014889facbeSLen Brown if (do_ptm) { 1015889facbeSLen Brown if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr)) 1016889facbeSLen Brown return -17; 1017889facbeSLen Brown p->pkg_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F); 1018889facbeSLen Brown } 101915aaa346SLen Brown return 0; 1020103a8feaSLen Brown } 1021103a8feaSLen Brown 1022c98d5d94SLen Brown void print_verbose_header(void) 1023103a8feaSLen Brown { 1024103a8feaSLen Brown unsigned long long msr; 1025103a8feaSLen Brown unsigned int ratio; 1026103a8feaSLen Brown 1027d7899447SLen Brown if (!do_nhm_platform_info) 1028103a8feaSLen Brown return; 1029103a8feaSLen Brown 10309c63a650SLen Brown get_msr(0, MSR_NHM_PLATFORM_INFO, &msr); 1031103a8feaSLen Brown 1032889facbeSLen Brown fprintf(stderr, "cpu0: MSR_NHM_PLATFORM_INFO: 0x%08llx\n", msr); 10336574a5d5SLen Brown 1034103a8feaSLen Brown ratio = (msr >> 40) & 0xFF; 1035103a8feaSLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency\n", 1036103a8feaSLen Brown ratio, bclk, ratio * bclk); 1037103a8feaSLen Brown 1038103a8feaSLen Brown ratio = (msr >> 8) & 0xFF; 1039103a8feaSLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz TSC frequency\n", 1040103a8feaSLen Brown ratio, bclk, ratio * bclk); 1041103a8feaSLen Brown 104267920418SLen Brown get_msr(0, MSR_IA32_POWER_CTL, &msr); 1043144b44b1SLen Brown fprintf(stderr, "cpu0: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n", 104467920418SLen Brown msr, msr & 0x2 ? "EN" : "DIS"); 104567920418SLen Brown 10466574a5d5SLen Brown if (!do_ivt_turbo_ratio_limit) 10476574a5d5SLen Brown goto print_nhm_turbo_ratio_limits; 10486574a5d5SLen Brown 10496574a5d5SLen Brown get_msr(0, MSR_IVT_TURBO_RATIO_LIMIT, &msr); 10506574a5d5SLen Brown 1051889facbeSLen Brown fprintf(stderr, "cpu0: MSR_IVT_TURBO_RATIO_LIMIT: 0x%08llx\n", msr); 10526574a5d5SLen Brown 10536574a5d5SLen Brown ratio = (msr >> 56) & 0xFF; 10546574a5d5SLen Brown if (ratio) 10556574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 16 active cores\n", 10566574a5d5SLen Brown ratio, bclk, ratio * bclk); 10576574a5d5SLen Brown 10586574a5d5SLen Brown ratio = (msr >> 48) & 0xFF; 10596574a5d5SLen Brown if (ratio) 10606574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 15 active cores\n", 10616574a5d5SLen Brown ratio, bclk, ratio * bclk); 10626574a5d5SLen Brown 10636574a5d5SLen Brown ratio = (msr >> 40) & 0xFF; 10646574a5d5SLen Brown if (ratio) 10656574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 14 active cores\n", 10666574a5d5SLen Brown ratio, bclk, ratio * bclk); 10676574a5d5SLen Brown 10686574a5d5SLen Brown ratio = (msr >> 32) & 0xFF; 10696574a5d5SLen Brown if (ratio) 10706574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 13 active cores\n", 10716574a5d5SLen Brown ratio, bclk, ratio * bclk); 10726574a5d5SLen Brown 10736574a5d5SLen Brown ratio = (msr >> 24) & 0xFF; 10746574a5d5SLen Brown if (ratio) 10756574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 12 active cores\n", 10766574a5d5SLen Brown ratio, bclk, ratio * bclk); 10776574a5d5SLen Brown 10786574a5d5SLen Brown ratio = (msr >> 16) & 0xFF; 10796574a5d5SLen Brown if (ratio) 10806574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 11 active cores\n", 10816574a5d5SLen Brown ratio, bclk, ratio * bclk); 10826574a5d5SLen Brown 10836574a5d5SLen Brown ratio = (msr >> 8) & 0xFF; 10846574a5d5SLen Brown if (ratio) 10856574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 10 active cores\n", 10866574a5d5SLen Brown ratio, bclk, ratio * bclk); 10876574a5d5SLen Brown 10886574a5d5SLen Brown ratio = (msr >> 0) & 0xFF; 10896574a5d5SLen Brown if (ratio) 10906574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n", 10916574a5d5SLen Brown ratio, bclk, ratio * bclk); 10926574a5d5SLen Brown 10936574a5d5SLen Brown print_nhm_turbo_ratio_limits: 1094889facbeSLen Brown get_msr(0, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr); 1095889facbeSLen Brown 1096889facbeSLen Brown #define SNB_C1_AUTO_UNDEMOTE (1UL << 27) 1097889facbeSLen Brown #define SNB_C3_AUTO_UNDEMOTE (1UL << 28) 1098889facbeSLen Brown 1099889facbeSLen Brown fprintf(stderr, "cpu0: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", msr); 1100889facbeSLen Brown 1101889facbeSLen Brown fprintf(stderr, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: ", 1102889facbeSLen Brown (msr & SNB_C3_AUTO_UNDEMOTE) ? "UNdemote-C3, " : "", 1103889facbeSLen Brown (msr & SNB_C1_AUTO_UNDEMOTE) ? "UNdemote-C1, " : "", 1104889facbeSLen Brown (msr & NHM_C3_AUTO_DEMOTE) ? "demote-C3, " : "", 1105889facbeSLen Brown (msr & NHM_C1_AUTO_DEMOTE) ? "demote-C1, " : "", 1106889facbeSLen Brown (msr & (1 << 15)) ? "" : "UN", 1107889facbeSLen Brown (unsigned int)msr & 7); 1108889facbeSLen Brown 1109889facbeSLen Brown 1110889facbeSLen Brown switch(msr & 0x7) { 1111889facbeSLen Brown case 0: 1112144b44b1SLen Brown fprintf(stderr, do_slm_cstates ? "no pkg states" : "pc0"); 1113889facbeSLen Brown break; 1114889facbeSLen Brown case 1: 1115144b44b1SLen Brown fprintf(stderr, do_slm_cstates ? "no pkg states" : do_snb_cstates ? "pc2" : "pc0"); 1116889facbeSLen Brown break; 1117889facbeSLen Brown case 2: 1118144b44b1SLen Brown fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc6-noret" : "pc3"); 1119889facbeSLen Brown break; 1120889facbeSLen Brown case 3: 1121144b44b1SLen Brown fprintf(stderr, do_slm_cstates ? "invalid" : "pc6"); 1122889facbeSLen Brown break; 1123889facbeSLen Brown case 4: 1124144b44b1SLen Brown fprintf(stderr, do_slm_cstates ? "pc4" : "pc7"); 1125889facbeSLen Brown break; 1126889facbeSLen Brown case 5: 1127144b44b1SLen Brown fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc7s" : "invalid"); 1128144b44b1SLen Brown break; 1129144b44b1SLen Brown case 6: 1130144b44b1SLen Brown fprintf(stderr, do_slm_cstates ? "pc6" : "invalid"); 1131889facbeSLen Brown break; 1132889facbeSLen Brown case 7: 1133144b44b1SLen Brown fprintf(stderr, do_slm_cstates ? "pc7" : "unlimited"); 1134889facbeSLen Brown break; 1135889facbeSLen Brown default: 1136889facbeSLen Brown fprintf(stderr, "invalid"); 1137889facbeSLen Brown } 1138889facbeSLen Brown fprintf(stderr, ")\n"); 1139103a8feaSLen Brown 1140d7899447SLen Brown if (!do_nhm_turbo_ratio_limit) 1141103a8feaSLen Brown return; 1142103a8feaSLen Brown 11439c63a650SLen Brown get_msr(0, MSR_NHM_TURBO_RATIO_LIMIT, &msr); 1144103a8feaSLen Brown 1145889facbeSLen Brown fprintf(stderr, "cpu0: MSR_NHM_TURBO_RATIO_LIMIT: 0x%08llx\n", msr); 11466574a5d5SLen Brown 11476574a5d5SLen Brown ratio = (msr >> 56) & 0xFF; 11486574a5d5SLen Brown if (ratio) 11496574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 8 active cores\n", 11506574a5d5SLen Brown ratio, bclk, ratio * bclk); 11516574a5d5SLen Brown 11526574a5d5SLen Brown ratio = (msr >> 48) & 0xFF; 11536574a5d5SLen Brown if (ratio) 11546574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 7 active cores\n", 11556574a5d5SLen Brown ratio, bclk, ratio * bclk); 11566574a5d5SLen Brown 11576574a5d5SLen Brown ratio = (msr >> 40) & 0xFF; 11586574a5d5SLen Brown if (ratio) 11596574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 6 active cores\n", 11606574a5d5SLen Brown ratio, bclk, ratio * bclk); 11616574a5d5SLen Brown 11626574a5d5SLen Brown ratio = (msr >> 32) & 0xFF; 11636574a5d5SLen Brown if (ratio) 11646574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 5 active cores\n", 11656574a5d5SLen Brown ratio, bclk, ratio * bclk); 11666574a5d5SLen Brown 1167103a8feaSLen Brown ratio = (msr >> 24) & 0xFF; 1168103a8feaSLen Brown if (ratio) 1169103a8feaSLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n", 1170103a8feaSLen Brown ratio, bclk, ratio * bclk); 1171103a8feaSLen Brown 1172103a8feaSLen Brown ratio = (msr >> 16) & 0xFF; 1173103a8feaSLen Brown if (ratio) 1174103a8feaSLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 3 active cores\n", 1175103a8feaSLen Brown ratio, bclk, ratio * bclk); 1176103a8feaSLen Brown 1177103a8feaSLen Brown ratio = (msr >> 8) & 0xFF; 1178103a8feaSLen Brown if (ratio) 1179103a8feaSLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 2 active cores\n", 1180103a8feaSLen Brown ratio, bclk, ratio * bclk); 1181103a8feaSLen Brown 1182103a8feaSLen Brown ratio = (msr >> 0) & 0xFF; 1183103a8feaSLen Brown if (ratio) 1184103a8feaSLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n", 1185103a8feaSLen Brown ratio, bclk, ratio * bclk); 11863a9a941dSLen Brown 1187103a8feaSLen Brown } 1188103a8feaSLen Brown 1189c98d5d94SLen Brown void free_all_buffers(void) 1190103a8feaSLen Brown { 1191c98d5d94SLen Brown CPU_FREE(cpu_present_set); 1192c98d5d94SLen Brown cpu_present_set = NULL; 1193c98d5d94SLen Brown cpu_present_set = 0; 1194103a8feaSLen Brown 1195c98d5d94SLen Brown CPU_FREE(cpu_affinity_set); 1196c98d5d94SLen Brown cpu_affinity_set = NULL; 1197c98d5d94SLen Brown cpu_affinity_setsize = 0; 1198103a8feaSLen Brown 1199c98d5d94SLen Brown free(thread_even); 1200c98d5d94SLen Brown free(core_even); 1201c98d5d94SLen Brown free(package_even); 1202103a8feaSLen Brown 1203c98d5d94SLen Brown thread_even = NULL; 1204c98d5d94SLen Brown core_even = NULL; 1205c98d5d94SLen Brown package_even = NULL; 1206103a8feaSLen Brown 1207c98d5d94SLen Brown free(thread_odd); 1208c98d5d94SLen Brown free(core_odd); 1209c98d5d94SLen Brown free(package_odd); 1210103a8feaSLen Brown 1211c98d5d94SLen Brown thread_odd = NULL; 1212c98d5d94SLen Brown core_odd = NULL; 1213c98d5d94SLen Brown package_odd = NULL; 1214103a8feaSLen Brown 1215c98d5d94SLen Brown free(output_buffer); 1216c98d5d94SLen Brown output_buffer = NULL; 1217c98d5d94SLen Brown outp = NULL; 1218103a8feaSLen Brown } 1219103a8feaSLen Brown 1220103a8feaSLen Brown /* 122157a42a34SJosh Triplett * Open a file, and exit on failure 122257a42a34SJosh Triplett */ 122357a42a34SJosh Triplett FILE *fopen_or_die(const char *path, const char *mode) 122457a42a34SJosh Triplett { 122557a42a34SJosh Triplett FILE *filep = fopen(path, "r"); 1226b2c95d90SJosh Triplett if (!filep) 1227b2c95d90SJosh Triplett err(1, "%s: open failed", path); 122857a42a34SJosh Triplett return filep; 122957a42a34SJosh Triplett } 123057a42a34SJosh Triplett 123157a42a34SJosh Triplett /* 123295aebc44SJosh Triplett * Parse a file containing a single int. 123395aebc44SJosh Triplett */ 123495aebc44SJosh Triplett int parse_int_file(const char *fmt, ...) 123595aebc44SJosh Triplett { 123695aebc44SJosh Triplett va_list args; 123795aebc44SJosh Triplett char path[PATH_MAX]; 123895aebc44SJosh Triplett FILE *filep; 123995aebc44SJosh Triplett int value; 124095aebc44SJosh Triplett 124195aebc44SJosh Triplett va_start(args, fmt); 124295aebc44SJosh Triplett vsnprintf(path, sizeof(path), fmt, args); 124395aebc44SJosh Triplett va_end(args); 124457a42a34SJosh Triplett filep = fopen_or_die(path, "r"); 1245b2c95d90SJosh Triplett if (fscanf(filep, "%d", &value) != 1) 1246b2c95d90SJosh Triplett err(1, "%s: failed to parse number from file", path); 124795aebc44SJosh Triplett fclose(filep); 124895aebc44SJosh Triplett return value; 124995aebc44SJosh Triplett } 125095aebc44SJosh Triplett 125195aebc44SJosh Triplett /* 1252c98d5d94SLen Brown * cpu_is_first_sibling_in_core(cpu) 1253c98d5d94SLen Brown * return 1 if given CPU is 1st HT sibling in the core 1254103a8feaSLen Brown */ 1255c98d5d94SLen Brown int cpu_is_first_sibling_in_core(int cpu) 1256103a8feaSLen Brown { 125795aebc44SJosh Triplett return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); 1258c98d5d94SLen Brown } 1259103a8feaSLen Brown 1260c98d5d94SLen Brown /* 1261c98d5d94SLen Brown * cpu_is_first_core_in_package(cpu) 1262c98d5d94SLen Brown * return 1 if given CPU is 1st core in package 1263c98d5d94SLen Brown */ 1264c98d5d94SLen Brown int cpu_is_first_core_in_package(int cpu) 1265c98d5d94SLen Brown { 126695aebc44SJosh Triplett return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu); 1267103a8feaSLen Brown } 1268103a8feaSLen Brown 1269103a8feaSLen Brown int get_physical_package_id(int cpu) 1270103a8feaSLen Brown { 127195aebc44SJosh Triplett return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu); 1272103a8feaSLen Brown } 1273103a8feaSLen Brown 1274103a8feaSLen Brown int get_core_id(int cpu) 1275103a8feaSLen Brown { 127695aebc44SJosh Triplett return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_id", cpu); 1277103a8feaSLen Brown } 1278103a8feaSLen Brown 1279c98d5d94SLen Brown int get_num_ht_siblings(int cpu) 1280c98d5d94SLen Brown { 1281c98d5d94SLen Brown char path[80]; 1282c98d5d94SLen Brown FILE *filep; 1283c98d5d94SLen Brown int sib1, sib2; 1284c98d5d94SLen Brown int matches; 1285c98d5d94SLen Brown char character; 1286c98d5d94SLen Brown 1287c98d5d94SLen Brown sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); 128857a42a34SJosh Triplett filep = fopen_or_die(path, "r"); 1289103a8feaSLen Brown /* 1290c98d5d94SLen Brown * file format: 1291c98d5d94SLen Brown * if a pair of number with a character between: 2 siblings (eg. 1-2, or 1,4) 1292c98d5d94SLen Brown * otherwinse 1 sibling (self). 1293c98d5d94SLen Brown */ 1294c98d5d94SLen Brown matches = fscanf(filep, "%d%c%d\n", &sib1, &character, &sib2); 1295c98d5d94SLen Brown 1296c98d5d94SLen Brown fclose(filep); 1297c98d5d94SLen Brown 1298c98d5d94SLen Brown if (matches == 3) 1299c98d5d94SLen Brown return 2; 1300c98d5d94SLen Brown else 1301c98d5d94SLen Brown return 1; 1302c98d5d94SLen Brown } 1303c98d5d94SLen Brown 1304c98d5d94SLen Brown /* 1305c98d5d94SLen Brown * run func(thread, core, package) in topology order 1306c98d5d94SLen Brown * skip non-present cpus 1307103a8feaSLen Brown */ 1308103a8feaSLen Brown 1309c98d5d94SLen Brown int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *, 1310c98d5d94SLen Brown struct pkg_data *, struct thread_data *, struct core_data *, 1311c98d5d94SLen Brown struct pkg_data *), struct thread_data *thread_base, 1312c98d5d94SLen Brown struct core_data *core_base, struct pkg_data *pkg_base, 1313c98d5d94SLen Brown struct thread_data *thread_base2, struct core_data *core_base2, 1314c98d5d94SLen Brown struct pkg_data *pkg_base2) 1315c98d5d94SLen Brown { 1316c98d5d94SLen Brown int retval, pkg_no, core_no, thread_no; 1317c98d5d94SLen Brown 1318c98d5d94SLen Brown for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) { 1319c98d5d94SLen Brown for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) { 1320c98d5d94SLen Brown for (thread_no = 0; thread_no < 1321c98d5d94SLen Brown topo.num_threads_per_core; ++thread_no) { 1322c98d5d94SLen Brown struct thread_data *t, *t2; 1323c98d5d94SLen Brown struct core_data *c, *c2; 1324c98d5d94SLen Brown struct pkg_data *p, *p2; 1325c98d5d94SLen Brown 1326c98d5d94SLen Brown t = GET_THREAD(thread_base, thread_no, core_no, pkg_no); 1327c98d5d94SLen Brown 1328c98d5d94SLen Brown if (cpu_is_not_present(t->cpu_id)) 1329c98d5d94SLen Brown continue; 1330c98d5d94SLen Brown 1331c98d5d94SLen Brown t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no); 1332c98d5d94SLen Brown 1333c98d5d94SLen Brown c = GET_CORE(core_base, core_no, pkg_no); 1334c98d5d94SLen Brown c2 = GET_CORE(core_base2, core_no, pkg_no); 1335c98d5d94SLen Brown 1336c98d5d94SLen Brown p = GET_PKG(pkg_base, pkg_no); 1337c98d5d94SLen Brown p2 = GET_PKG(pkg_base2, pkg_no); 1338c98d5d94SLen Brown 1339c98d5d94SLen Brown retval = func(t, c, p, t2, c2, p2); 1340c98d5d94SLen Brown if (retval) 1341c98d5d94SLen Brown return retval; 1342c98d5d94SLen Brown } 1343c98d5d94SLen Brown } 1344c98d5d94SLen Brown } 1345c98d5d94SLen Brown return 0; 1346c98d5d94SLen Brown } 1347c98d5d94SLen Brown 1348c98d5d94SLen Brown /* 1349c98d5d94SLen Brown * run func(cpu) on every cpu in /proc/stat 1350c98d5d94SLen Brown * return max_cpu number 1351c98d5d94SLen Brown */ 1352c98d5d94SLen Brown int for_all_proc_cpus(int (func)(int)) 1353103a8feaSLen Brown { 1354103a8feaSLen Brown FILE *fp; 1355c98d5d94SLen Brown int cpu_num; 1356103a8feaSLen Brown int retval; 1357103a8feaSLen Brown 135857a42a34SJosh Triplett fp = fopen_or_die(proc_stat, "r"); 1359103a8feaSLen Brown 1360103a8feaSLen Brown retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n"); 1361b2c95d90SJosh Triplett if (retval != 0) 1362b2c95d90SJosh Triplett err(1, "%s: failed to parse format", proc_stat); 1363103a8feaSLen Brown 1364c98d5d94SLen Brown while (1) { 1365c98d5d94SLen Brown retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num); 1366103a8feaSLen Brown if (retval != 1) 1367103a8feaSLen Brown break; 1368103a8feaSLen Brown 1369c98d5d94SLen Brown retval = func(cpu_num); 1370c98d5d94SLen Brown if (retval) { 1371c98d5d94SLen Brown fclose(fp); 1372c98d5d94SLen Brown return(retval); 1373c98d5d94SLen Brown } 1374103a8feaSLen Brown } 1375103a8feaSLen Brown fclose(fp); 1376c98d5d94SLen Brown return 0; 1377103a8feaSLen Brown } 1378103a8feaSLen Brown 1379103a8feaSLen Brown void re_initialize(void) 1380103a8feaSLen Brown { 1381c98d5d94SLen Brown free_all_buffers(); 1382c98d5d94SLen Brown setup_all_buffers(); 1383c98d5d94SLen Brown printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus); 1384103a8feaSLen Brown } 1385103a8feaSLen Brown 1386c98d5d94SLen Brown 1387103a8feaSLen Brown /* 1388c98d5d94SLen Brown * count_cpus() 1389c98d5d94SLen Brown * remember the last one seen, it will be the max 1390103a8feaSLen Brown */ 1391c98d5d94SLen Brown int count_cpus(int cpu) 1392103a8feaSLen Brown { 1393c98d5d94SLen Brown if (topo.max_cpu_num < cpu) 1394c98d5d94SLen Brown topo.max_cpu_num = cpu; 1395103a8feaSLen Brown 1396c98d5d94SLen Brown topo.num_cpus += 1; 1397c98d5d94SLen Brown return 0; 1398103a8feaSLen Brown } 1399c98d5d94SLen Brown int mark_cpu_present(int cpu) 1400c98d5d94SLen Brown { 1401c98d5d94SLen Brown CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set); 140215aaa346SLen Brown return 0; 1403103a8feaSLen Brown } 1404103a8feaSLen Brown 1405103a8feaSLen Brown void turbostat_loop() 1406103a8feaSLen Brown { 1407c98d5d94SLen Brown int retval; 1408e52966c0SLen Brown int restarted = 0; 1409c98d5d94SLen Brown 1410103a8feaSLen Brown restart: 1411e52966c0SLen Brown restarted++; 1412e52966c0SLen Brown 1413c98d5d94SLen Brown retval = for_all_cpus(get_counters, EVEN_COUNTERS); 1414d91bb17cSLen Brown if (retval < -1) { 1415d91bb17cSLen Brown exit(retval); 1416d91bb17cSLen Brown } else if (retval == -1) { 1417e52966c0SLen Brown if (restarted > 1) { 1418e52966c0SLen Brown exit(retval); 1419e52966c0SLen Brown } 1420c98d5d94SLen Brown re_initialize(); 1421c98d5d94SLen Brown goto restart; 1422c98d5d94SLen Brown } 1423e52966c0SLen Brown restarted = 0; 1424103a8feaSLen Brown gettimeofday(&tv_even, (struct timezone *)NULL); 1425103a8feaSLen Brown 1426103a8feaSLen Brown while (1) { 1427c98d5d94SLen Brown if (for_all_proc_cpus(cpu_is_not_present)) { 1428103a8feaSLen Brown re_initialize(); 1429103a8feaSLen Brown goto restart; 1430103a8feaSLen Brown } 1431103a8feaSLen Brown sleep(interval_sec); 1432c98d5d94SLen Brown retval = for_all_cpus(get_counters, ODD_COUNTERS); 1433d91bb17cSLen Brown if (retval < -1) { 1434d91bb17cSLen Brown exit(retval); 1435d91bb17cSLen Brown } else if (retval == -1) { 143615aaa346SLen Brown re_initialize(); 143715aaa346SLen Brown goto restart; 143815aaa346SLen Brown } 1439103a8feaSLen Brown gettimeofday(&tv_odd, (struct timezone *)NULL); 1440103a8feaSLen Brown timersub(&tv_odd, &tv_even, &tv_delta); 1441c98d5d94SLen Brown for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); 1442c98d5d94SLen Brown compute_average(EVEN_COUNTERS); 1443c98d5d94SLen Brown format_all_counters(EVEN_COUNTERS); 1444c98d5d94SLen Brown flush_stdout(); 144515aaa346SLen Brown sleep(interval_sec); 1446c98d5d94SLen Brown retval = for_all_cpus(get_counters, EVEN_COUNTERS); 1447d91bb17cSLen Brown if (retval < -1) { 1448d91bb17cSLen Brown exit(retval); 1449d91bb17cSLen Brown } else if (retval == -1) { 1450103a8feaSLen Brown re_initialize(); 1451103a8feaSLen Brown goto restart; 1452103a8feaSLen Brown } 1453103a8feaSLen Brown gettimeofday(&tv_even, (struct timezone *)NULL); 1454103a8feaSLen Brown timersub(&tv_even, &tv_odd, &tv_delta); 1455c98d5d94SLen Brown for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS); 1456c98d5d94SLen Brown compute_average(ODD_COUNTERS); 1457c98d5d94SLen Brown format_all_counters(ODD_COUNTERS); 1458c98d5d94SLen Brown flush_stdout(); 1459103a8feaSLen Brown } 1460103a8feaSLen Brown } 1461103a8feaSLen Brown 1462103a8feaSLen Brown void check_dev_msr() 1463103a8feaSLen Brown { 1464103a8feaSLen Brown struct stat sb; 1465103a8feaSLen Brown 1466b2c95d90SJosh Triplett if (stat("/dev/cpu/0/msr", &sb)) 1467d7899447SLen Brown err(-5, "no /dev/cpu/0/msr, Try \"# modprobe msr\" "); 1468103a8feaSLen Brown } 1469103a8feaSLen Brown 147098481e79SLen Brown void check_permissions() 1471103a8feaSLen Brown { 147298481e79SLen Brown struct __user_cap_header_struct cap_header_data; 147398481e79SLen Brown cap_user_header_t cap_header = &cap_header_data; 147498481e79SLen Brown struct __user_cap_data_struct cap_data_data; 147598481e79SLen Brown cap_user_data_t cap_data = &cap_data_data; 147698481e79SLen Brown extern int capget(cap_user_header_t hdrp, cap_user_data_t datap); 147798481e79SLen Brown int do_exit = 0; 147898481e79SLen Brown 147998481e79SLen Brown /* check for CAP_SYS_RAWIO */ 148098481e79SLen Brown cap_header->pid = getpid(); 148198481e79SLen Brown cap_header->version = _LINUX_CAPABILITY_VERSION; 148298481e79SLen Brown if (capget(cap_header, cap_data) < 0) 148398481e79SLen Brown err(-6, "capget(2) failed"); 148498481e79SLen Brown 148598481e79SLen Brown if ((cap_data->effective & (1 << CAP_SYS_RAWIO)) == 0) { 148698481e79SLen Brown do_exit++; 148798481e79SLen Brown warnx("capget(CAP_SYS_RAWIO) failed," 148898481e79SLen Brown " try \"# setcap cap_sys_rawio=ep %s\"", progname); 148998481e79SLen Brown } 149098481e79SLen Brown 149198481e79SLen Brown /* test file permissions */ 149298481e79SLen Brown if (euidaccess("/dev/cpu/0/msr", R_OK)) { 149398481e79SLen Brown do_exit++; 149498481e79SLen Brown warn("/dev/cpu/0/msr open failed, try chown or chmod +r /dev/cpu/*/msr"); 149598481e79SLen Brown } 149698481e79SLen Brown 149798481e79SLen Brown /* if all else fails, thell them to be root */ 149898481e79SLen Brown if (do_exit) 1499b2c95d90SJosh Triplett if (getuid() != 0) 1500d7899447SLen Brown warnx("... or simply run as root"); 150198481e79SLen Brown 150298481e79SLen Brown if (do_exit) 150398481e79SLen Brown exit(-6); 1504103a8feaSLen Brown } 1505103a8feaSLen Brown 1506d7899447SLen Brown /* 1507d7899447SLen Brown * NHM adds support for additional MSRs: 1508d7899447SLen Brown * 1509d7899447SLen Brown * MSR_SMI_COUNT 0x00000034 1510d7899447SLen Brown * 1511d7899447SLen Brown * MSR_NHM_PLATFORM_INFO 0x000000ce 1512d7899447SLen Brown * MSR_NHM_SNB_PKG_CST_CFG_CTL 0x000000e2 1513d7899447SLen Brown * 1514d7899447SLen Brown * MSR_PKG_C3_RESIDENCY 0x000003f8 1515d7899447SLen Brown * MSR_PKG_C6_RESIDENCY 0x000003f9 1516d7899447SLen Brown * MSR_CORE_C3_RESIDENCY 0x000003fc 1517d7899447SLen Brown * MSR_CORE_C6_RESIDENCY 0x000003fd 1518d7899447SLen Brown * 1519d7899447SLen Brown */ 1520d7899447SLen Brown int has_nhm_msrs(unsigned int family, unsigned int model) 1521103a8feaSLen Brown { 1522103a8feaSLen Brown if (!genuine_intel) 1523103a8feaSLen Brown return 0; 1524103a8feaSLen Brown 1525103a8feaSLen Brown if (family != 6) 1526103a8feaSLen Brown return 0; 1527103a8feaSLen Brown 1528103a8feaSLen Brown switch (model) { 1529103a8feaSLen Brown case 0x1A: /* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */ 1530103a8feaSLen Brown case 0x1E: /* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */ 1531103a8feaSLen Brown case 0x1F: /* Core i7 and i5 Processor - Nehalem */ 1532103a8feaSLen Brown case 0x25: /* Westmere Client - Clarkdale, Arrandale */ 1533103a8feaSLen Brown case 0x2C: /* Westmere EP - Gulftown */ 1534103a8feaSLen Brown case 0x2A: /* SNB */ 1535103a8feaSLen Brown case 0x2D: /* SNB Xeon */ 1536553575f1SLen Brown case 0x3A: /* IVB */ 15371300651bSLen Brown case 0x3E: /* IVB Xeon */ 153870b43400SLen Brown case 0x3C: /* HSW */ 1539e6f9bb3cSLen Brown case 0x3F: /* HSX */ 154070b43400SLen Brown case 0x45: /* HSW */ 1541149c2319SLen Brown case 0x46: /* HSW */ 1542144b44b1SLen Brown case 0x37: /* BYT */ 1543144b44b1SLen Brown case 0x4D: /* AVN */ 15444e8e863fSLen Brown case 0x3D: /* BDW */ 15454e8e863fSLen Brown case 0x4F: /* BDX */ 15464e8e863fSLen Brown case 0x56: /* BDX-DE */ 1547103a8feaSLen Brown case 0x2E: /* Nehalem-EX Xeon - Beckton */ 1548103a8feaSLen Brown case 0x2F: /* Westmere-EX Xeon - Eagleton */ 1549d7899447SLen Brown return 1; 1550103a8feaSLen Brown default: 1551103a8feaSLen Brown return 0; 1552103a8feaSLen Brown } 1553103a8feaSLen Brown } 1554d7899447SLen Brown int has_nhm_turbo_ratio_limit(unsigned int family, unsigned int model) 1555d7899447SLen Brown { 1556d7899447SLen Brown if (!has_nhm_msrs(family, model)) 1557d7899447SLen Brown return 0; 1558d7899447SLen Brown 1559d7899447SLen Brown switch (model) { 1560d7899447SLen Brown /* Nehalem compatible, but do not include turbo-ratio limit support */ 1561d7899447SLen Brown case 0x2E: /* Nehalem-EX Xeon - Beckton */ 1562d7899447SLen Brown case 0x2F: /* Westmere-EX Xeon - Eagleton */ 1563d7899447SLen Brown return 0; 1564d7899447SLen Brown default: 1565d7899447SLen Brown return 1; 1566d7899447SLen Brown } 1567d7899447SLen Brown } 15686574a5d5SLen Brown int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model) 15696574a5d5SLen Brown { 15706574a5d5SLen Brown if (!genuine_intel) 15716574a5d5SLen Brown return 0; 15726574a5d5SLen Brown 15736574a5d5SLen Brown if (family != 6) 15746574a5d5SLen Brown return 0; 15756574a5d5SLen Brown 15766574a5d5SLen Brown switch (model) { 15776574a5d5SLen Brown case 0x3E: /* IVB Xeon */ 15786574a5d5SLen Brown return 1; 15796574a5d5SLen Brown default: 15806574a5d5SLen Brown return 0; 15816574a5d5SLen Brown } 15826574a5d5SLen Brown } 15836574a5d5SLen Brown 1584889facbeSLen Brown /* 1585889facbeSLen Brown * print_epb() 1586889facbeSLen Brown * Decode the ENERGY_PERF_BIAS MSR 1587889facbeSLen Brown */ 1588889facbeSLen Brown int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p) 1589889facbeSLen Brown { 1590889facbeSLen Brown unsigned long long msr; 1591889facbeSLen Brown char *epb_string; 1592889facbeSLen Brown int cpu; 1593889facbeSLen Brown 1594889facbeSLen Brown if (!has_epb) 1595889facbeSLen Brown return 0; 1596889facbeSLen Brown 1597889facbeSLen Brown cpu = t->cpu_id; 1598889facbeSLen Brown 1599889facbeSLen Brown /* EPB is per-package */ 1600889facbeSLen Brown if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 1601889facbeSLen Brown return 0; 1602889facbeSLen Brown 1603889facbeSLen Brown if (cpu_migrate(cpu)) { 1604889facbeSLen Brown fprintf(stderr, "Could not migrate to CPU %d\n", cpu); 1605889facbeSLen Brown return -1; 1606889facbeSLen Brown } 1607889facbeSLen Brown 1608889facbeSLen Brown if (get_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, &msr)) 1609889facbeSLen Brown return 0; 1610889facbeSLen Brown 1611889facbeSLen Brown switch (msr & 0x7) { 1612889facbeSLen Brown case ENERGY_PERF_BIAS_PERFORMANCE: 1613889facbeSLen Brown epb_string = "performance"; 1614889facbeSLen Brown break; 1615889facbeSLen Brown case ENERGY_PERF_BIAS_NORMAL: 1616889facbeSLen Brown epb_string = "balanced"; 1617889facbeSLen Brown break; 1618889facbeSLen Brown case ENERGY_PERF_BIAS_POWERSAVE: 1619889facbeSLen Brown epb_string = "powersave"; 1620889facbeSLen Brown break; 1621889facbeSLen Brown default: 1622889facbeSLen Brown epb_string = "custom"; 1623889facbeSLen Brown break; 1624889facbeSLen Brown } 1625889facbeSLen Brown fprintf(stderr, "cpu%d: MSR_IA32_ENERGY_PERF_BIAS: 0x%08llx (%s)\n", cpu, msr, epb_string); 1626889facbeSLen Brown 1627889facbeSLen Brown return 0; 1628889facbeSLen Brown } 1629889facbeSLen Brown 16303a9a941dSLen Brown /* 16313a9a941dSLen Brown * print_perf_limit() 16323a9a941dSLen Brown */ 16333a9a941dSLen Brown int print_perf_limit(struct thread_data *t, struct core_data *c, struct pkg_data *p) 16343a9a941dSLen Brown { 16353a9a941dSLen Brown unsigned long long msr; 16363a9a941dSLen Brown int cpu; 16373a9a941dSLen Brown 16383a9a941dSLen Brown cpu = t->cpu_id; 16393a9a941dSLen Brown 16403a9a941dSLen Brown /* per-package */ 16413a9a941dSLen Brown if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 16423a9a941dSLen Brown return 0; 16433a9a941dSLen Brown 16443a9a941dSLen Brown if (cpu_migrate(cpu)) { 16453a9a941dSLen Brown fprintf(stderr, "Could not migrate to CPU %d\n", cpu); 16463a9a941dSLen Brown return -1; 16473a9a941dSLen Brown } 16483a9a941dSLen Brown 16493a9a941dSLen Brown if (do_core_perf_limit_reasons) { 16503a9a941dSLen Brown get_msr(cpu, MSR_CORE_PERF_LIMIT_REASONS, &msr); 16513a9a941dSLen Brown fprintf(stderr, "cpu%d: MSR_CORE_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr); 16523a9a941dSLen Brown fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)", 16533a9a941dSLen Brown (msr & 1 << 0) ? "PROCHOT, " : "", 16543a9a941dSLen Brown (msr & 1 << 1) ? "ThermStatus, " : "", 16553a9a941dSLen Brown (msr & 1 << 2) ? "bit2, " : "", 16563a9a941dSLen Brown (msr & 1 << 4) ? "Graphics, " : "", 16573a9a941dSLen Brown (msr & 1 << 5) ? "Auto-HWP, " : "", 16583a9a941dSLen Brown (msr & 1 << 6) ? "VR-Therm, " : "", 16593a9a941dSLen Brown (msr & 1 << 8) ? "Amps, " : "", 16603a9a941dSLen Brown (msr & 1 << 9) ? "CorePwr, " : "", 16613a9a941dSLen Brown (msr & 1 << 10) ? "PkgPwrL1, " : "", 16623a9a941dSLen Brown (msr & 1 << 11) ? "PkgPwrL2, " : "", 16633a9a941dSLen Brown (msr & 1 << 12) ? "MultiCoreTurbo, " : "", 16643a9a941dSLen Brown (msr & 1 << 13) ? "Transitions, " : "", 16653a9a941dSLen Brown (msr & 1 << 14) ? "bit14, " : "", 16663a9a941dSLen Brown (msr & 1 << 15) ? "bit15, " : ""); 16673a9a941dSLen Brown fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)\n", 16683a9a941dSLen Brown (msr & 1 << 16) ? "PROCHOT, " : "", 16693a9a941dSLen Brown (msr & 1 << 17) ? "ThermStatus, " : "", 16703a9a941dSLen Brown (msr & 1 << 18) ? "bit18, " : "", 16713a9a941dSLen Brown (msr & 1 << 20) ? "Graphics, " : "", 16723a9a941dSLen Brown (msr & 1 << 21) ? "Auto-HWP, " : "", 16733a9a941dSLen Brown (msr & 1 << 22) ? "VR-Therm, " : "", 16743a9a941dSLen Brown (msr & 1 << 24) ? "Amps, " : "", 16753a9a941dSLen Brown (msr & 1 << 25) ? "CorePwr, " : "", 16763a9a941dSLen Brown (msr & 1 << 26) ? "PkgPwrL1, " : "", 16773a9a941dSLen Brown (msr & 1 << 27) ? "PkgPwrL2, " : "", 16783a9a941dSLen Brown (msr & 1 << 28) ? "MultiCoreTurbo, " : "", 16793a9a941dSLen Brown (msr & 1 << 29) ? "Transitions, " : "", 16803a9a941dSLen Brown (msr & 1 << 30) ? "bit30, " : "", 16813a9a941dSLen Brown (msr & 1 << 31) ? "bit31, " : ""); 16823a9a941dSLen Brown 16833a9a941dSLen Brown } 16843a9a941dSLen Brown if (do_gfx_perf_limit_reasons) { 16853a9a941dSLen Brown get_msr(cpu, MSR_GFX_PERF_LIMIT_REASONS, &msr); 16863a9a941dSLen Brown fprintf(stderr, "cpu%d: MSR_GFX_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr); 16873a9a941dSLen Brown fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s)", 16883a9a941dSLen Brown (msr & 1 << 0) ? "PROCHOT, " : "", 16893a9a941dSLen Brown (msr & 1 << 1) ? "ThermStatus, " : "", 16903a9a941dSLen Brown (msr & 1 << 4) ? "Graphics, " : "", 16913a9a941dSLen Brown (msr & 1 << 6) ? "VR-Therm, " : "", 16923a9a941dSLen Brown (msr & 1 << 8) ? "Amps, " : "", 16933a9a941dSLen Brown (msr & 1 << 9) ? "GFXPwr, " : "", 16943a9a941dSLen Brown (msr & 1 << 10) ? "PkgPwrL1, " : "", 16953a9a941dSLen Brown (msr & 1 << 11) ? "PkgPwrL2, " : ""); 16963a9a941dSLen Brown fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s)\n", 16973a9a941dSLen Brown (msr & 1 << 16) ? "PROCHOT, " : "", 16983a9a941dSLen Brown (msr & 1 << 17) ? "ThermStatus, " : "", 16993a9a941dSLen Brown (msr & 1 << 20) ? "Graphics, " : "", 17003a9a941dSLen Brown (msr & 1 << 22) ? "VR-Therm, " : "", 17013a9a941dSLen Brown (msr & 1 << 24) ? "Amps, " : "", 17023a9a941dSLen Brown (msr & 1 << 25) ? "GFXPwr, " : "", 17033a9a941dSLen Brown (msr & 1 << 26) ? "PkgPwrL1, " : "", 17043a9a941dSLen Brown (msr & 1 << 27) ? "PkgPwrL2, " : ""); 17053a9a941dSLen Brown } 17063a9a941dSLen Brown if (do_ring_perf_limit_reasons) { 17073a9a941dSLen Brown get_msr(cpu, MSR_RING_PERF_LIMIT_REASONS, &msr); 17083a9a941dSLen Brown fprintf(stderr, "cpu%d: MSR_RING_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr); 17093a9a941dSLen Brown fprintf(stderr, " (Active: %s%s%s%s%s%s)", 17103a9a941dSLen Brown (msr & 1 << 0) ? "PROCHOT, " : "", 17113a9a941dSLen Brown (msr & 1 << 1) ? "ThermStatus, " : "", 17123a9a941dSLen Brown (msr & 1 << 6) ? "VR-Therm, " : "", 17133a9a941dSLen Brown (msr & 1 << 8) ? "Amps, " : "", 17143a9a941dSLen Brown (msr & 1 << 10) ? "PkgPwrL1, " : "", 17153a9a941dSLen Brown (msr & 1 << 11) ? "PkgPwrL2, " : ""); 17163a9a941dSLen Brown fprintf(stderr, " (Logged: %s%s%s%s%s%s)\n", 17173a9a941dSLen Brown (msr & 1 << 16) ? "PROCHOT, " : "", 17183a9a941dSLen Brown (msr & 1 << 17) ? "ThermStatus, " : "", 17193a9a941dSLen Brown (msr & 1 << 22) ? "VR-Therm, " : "", 17203a9a941dSLen Brown (msr & 1 << 24) ? "Amps, " : "", 17213a9a941dSLen Brown (msr & 1 << 26) ? "PkgPwrL1, " : "", 17223a9a941dSLen Brown (msr & 1 << 27) ? "PkgPwrL2, " : ""); 17233a9a941dSLen Brown } 17243a9a941dSLen Brown return 0; 17253a9a941dSLen Brown } 17263a9a941dSLen Brown 1727889facbeSLen Brown #define RAPL_POWER_GRANULARITY 0x7FFF /* 15 bit power granularity */ 1728889facbeSLen Brown #define RAPL_TIME_GRANULARITY 0x3F /* 6 bit time granularity */ 1729889facbeSLen Brown 1730144b44b1SLen Brown double get_tdp(model) 1731144b44b1SLen Brown { 1732144b44b1SLen Brown unsigned long long msr; 1733144b44b1SLen Brown 1734144b44b1SLen Brown if (do_rapl & RAPL_PKG_POWER_INFO) 1735144b44b1SLen Brown if (!get_msr(0, MSR_PKG_POWER_INFO, &msr)) 1736144b44b1SLen Brown return ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units; 1737144b44b1SLen Brown 1738144b44b1SLen Brown switch (model) { 1739144b44b1SLen Brown case 0x37: 1740144b44b1SLen Brown case 0x4D: 1741144b44b1SLen Brown return 30.0; 1742144b44b1SLen Brown default: 1743144b44b1SLen Brown return 135.0; 1744144b44b1SLen Brown } 1745144b44b1SLen Brown } 1746144b44b1SLen Brown 1747144b44b1SLen Brown 1748889facbeSLen Brown /* 1749889facbeSLen Brown * rapl_probe() 1750889facbeSLen Brown * 1751144b44b1SLen Brown * sets do_rapl, rapl_power_units, rapl_energy_units, rapl_time_units 1752889facbeSLen Brown */ 1753889facbeSLen Brown void rapl_probe(unsigned int family, unsigned int model) 1754889facbeSLen Brown { 1755889facbeSLen Brown unsigned long long msr; 1756144b44b1SLen Brown unsigned int time_unit; 1757889facbeSLen Brown double tdp; 1758889facbeSLen Brown 1759889facbeSLen Brown if (!genuine_intel) 1760889facbeSLen Brown return; 1761889facbeSLen Brown 1762889facbeSLen Brown if (family != 6) 1763889facbeSLen Brown return; 1764889facbeSLen Brown 1765889facbeSLen Brown switch (model) { 1766889facbeSLen Brown case 0x2A: 1767889facbeSLen Brown case 0x3A: 176870b43400SLen Brown case 0x3C: /* HSW */ 176970b43400SLen Brown case 0x45: /* HSW */ 1770149c2319SLen Brown case 0x46: /* HSW */ 17714e8e863fSLen Brown case 0x3D: /* BDW */ 1772144b44b1SLen Brown do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_GFX | RAPL_PKG_POWER_INFO; 1773889facbeSLen Brown break; 1774e6f9bb3cSLen Brown case 0x3F: /* HSX */ 17754e8e863fSLen Brown case 0x4F: /* BDX */ 17764e8e863fSLen Brown case 0x56: /* BDX-DE */ 1777e6f9bb3cSLen Brown do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO; 1778e6f9bb3cSLen Brown break; 1779889facbeSLen Brown case 0x2D: 1780889facbeSLen Brown case 0x3E: 1781144b44b1SLen Brown do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_DRAM | RAPL_PKG_PERF_STATUS | RAPL_DRAM_PERF_STATUS | RAPL_PKG_POWER_INFO; 1782144b44b1SLen Brown break; 1783144b44b1SLen Brown case 0x37: /* BYT */ 1784144b44b1SLen Brown case 0x4D: /* AVN */ 1785144b44b1SLen Brown do_rapl = RAPL_PKG | RAPL_CORES ; 1786889facbeSLen Brown break; 1787889facbeSLen Brown default: 1788889facbeSLen Brown return; 1789889facbeSLen Brown } 1790889facbeSLen Brown 1791889facbeSLen Brown /* units on package 0, verify later other packages match */ 1792889facbeSLen Brown if (get_msr(0, MSR_RAPL_POWER_UNIT, &msr)) 1793889facbeSLen Brown return; 1794889facbeSLen Brown 1795889facbeSLen Brown rapl_power_units = 1.0 / (1 << (msr & 0xF)); 1796144b44b1SLen Brown if (model == 0x37) 1797144b44b1SLen Brown rapl_energy_units = 1.0 * (1 << (msr >> 8 & 0x1F)) / 1000000; 1798144b44b1SLen Brown else 1799889facbeSLen Brown rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F)); 1800889facbeSLen Brown 1801144b44b1SLen Brown time_unit = msr >> 16 & 0xF; 1802144b44b1SLen Brown if (time_unit == 0) 1803144b44b1SLen Brown time_unit = 0xA; 1804889facbeSLen Brown 1805144b44b1SLen Brown rapl_time_units = 1.0 / (1 << (time_unit)); 1806144b44b1SLen Brown 1807144b44b1SLen Brown tdp = get_tdp(model); 1808889facbeSLen Brown 1809889facbeSLen Brown rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp; 1810889facbeSLen Brown if (verbose) 1811144b44b1SLen Brown fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp); 1812889facbeSLen Brown 1813889facbeSLen Brown return; 1814889facbeSLen Brown } 1815889facbeSLen Brown 18163a9a941dSLen Brown void perf_limit_reasons_probe(family, model) 18173a9a941dSLen Brown { 18183a9a941dSLen Brown if (!genuine_intel) 18193a9a941dSLen Brown return; 18203a9a941dSLen Brown 18213a9a941dSLen Brown if (family != 6) 18223a9a941dSLen Brown return; 18233a9a941dSLen Brown 18243a9a941dSLen Brown switch (model) { 18253a9a941dSLen Brown case 0x3C: /* HSW */ 18263a9a941dSLen Brown case 0x45: /* HSW */ 18273a9a941dSLen Brown case 0x46: /* HSW */ 18283a9a941dSLen Brown do_gfx_perf_limit_reasons = 1; 18293a9a941dSLen Brown case 0x3F: /* HSX */ 18303a9a941dSLen Brown do_core_perf_limit_reasons = 1; 18313a9a941dSLen Brown do_ring_perf_limit_reasons = 1; 18323a9a941dSLen Brown default: 18333a9a941dSLen Brown return; 18343a9a941dSLen Brown } 18353a9a941dSLen Brown } 18363a9a941dSLen Brown 1837889facbeSLen Brown int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p) 1838889facbeSLen Brown { 1839889facbeSLen Brown unsigned long long msr; 1840889facbeSLen Brown unsigned int dts; 1841889facbeSLen Brown int cpu; 1842889facbeSLen Brown 1843889facbeSLen Brown if (!(do_dts || do_ptm)) 1844889facbeSLen Brown return 0; 1845889facbeSLen Brown 1846889facbeSLen Brown cpu = t->cpu_id; 1847889facbeSLen Brown 1848889facbeSLen Brown /* DTS is per-core, no need to print for each thread */ 1849889facbeSLen Brown if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) 1850889facbeSLen Brown return 0; 1851889facbeSLen Brown 1852889facbeSLen Brown if (cpu_migrate(cpu)) { 1853889facbeSLen Brown fprintf(stderr, "Could not migrate to CPU %d\n", cpu); 1854889facbeSLen Brown return -1; 1855889facbeSLen Brown } 1856889facbeSLen Brown 1857889facbeSLen Brown if (do_ptm && (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) { 1858889facbeSLen Brown if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr)) 1859889facbeSLen Brown return 0; 1860889facbeSLen Brown 1861889facbeSLen Brown dts = (msr >> 16) & 0x7F; 1862889facbeSLen Brown fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_STATUS: 0x%08llx (%d C)\n", 1863889facbeSLen Brown cpu, msr, tcc_activation_temp - dts); 1864889facbeSLen Brown 1865889facbeSLen Brown #ifdef THERM_DEBUG 1866889facbeSLen Brown if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &msr)) 1867889facbeSLen Brown return 0; 1868889facbeSLen Brown 1869889facbeSLen Brown dts = (msr >> 16) & 0x7F; 1870889facbeSLen Brown dts2 = (msr >> 8) & 0x7F; 1871889facbeSLen Brown fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n", 1872889facbeSLen Brown cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2); 1873889facbeSLen Brown #endif 1874889facbeSLen Brown } 1875889facbeSLen Brown 1876889facbeSLen Brown 1877889facbeSLen Brown if (do_dts) { 1878889facbeSLen Brown unsigned int resolution; 1879889facbeSLen Brown 1880889facbeSLen Brown if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr)) 1881889facbeSLen Brown return 0; 1882889facbeSLen Brown 1883889facbeSLen Brown dts = (msr >> 16) & 0x7F; 1884889facbeSLen Brown resolution = (msr >> 27) & 0xF; 1885889facbeSLen Brown fprintf(stderr, "cpu%d: MSR_IA32_THERM_STATUS: 0x%08llx (%d C +/- %d)\n", 1886889facbeSLen Brown cpu, msr, tcc_activation_temp - dts, resolution); 1887889facbeSLen Brown 1888889facbeSLen Brown #ifdef THERM_DEBUG 1889889facbeSLen Brown if (get_msr(cpu, MSR_IA32_THERM_INTERRUPT, &msr)) 1890889facbeSLen Brown return 0; 1891889facbeSLen Brown 1892889facbeSLen Brown dts = (msr >> 16) & 0x7F; 1893889facbeSLen Brown dts2 = (msr >> 8) & 0x7F; 1894889facbeSLen Brown fprintf(stderr, "cpu%d: MSR_IA32_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n", 1895889facbeSLen Brown cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2); 1896889facbeSLen Brown #endif 1897889facbeSLen Brown } 1898889facbeSLen Brown 1899889facbeSLen Brown return 0; 1900889facbeSLen Brown } 1901889facbeSLen Brown 1902889facbeSLen Brown void print_power_limit_msr(int cpu, unsigned long long msr, char *label) 1903889facbeSLen Brown { 1904889facbeSLen Brown fprintf(stderr, "cpu%d: %s: %sabled (%f Watts, %f sec, clamp %sabled)\n", 1905889facbeSLen Brown cpu, label, 1906889facbeSLen Brown ((msr >> 15) & 1) ? "EN" : "DIS", 1907889facbeSLen Brown ((msr >> 0) & 0x7FFF) * rapl_power_units, 1908889facbeSLen Brown (1.0 + (((msr >> 22) & 0x3)/4.0)) * (1 << ((msr >> 17) & 0x1F)) * rapl_time_units, 1909889facbeSLen Brown (((msr >> 16) & 1) ? "EN" : "DIS")); 1910889facbeSLen Brown 1911889facbeSLen Brown return; 1912889facbeSLen Brown } 1913889facbeSLen Brown 1914889facbeSLen Brown int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p) 1915889facbeSLen Brown { 1916889facbeSLen Brown unsigned long long msr; 1917889facbeSLen Brown int cpu; 1918889facbeSLen Brown 1919889facbeSLen Brown if (!do_rapl) 1920889facbeSLen Brown return 0; 1921889facbeSLen Brown 1922889facbeSLen Brown /* RAPL counters are per package, so print only for 1st thread/package */ 1923889facbeSLen Brown if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 1924889facbeSLen Brown return 0; 1925889facbeSLen Brown 1926889facbeSLen Brown cpu = t->cpu_id; 1927889facbeSLen Brown if (cpu_migrate(cpu)) { 1928889facbeSLen Brown fprintf(stderr, "Could not migrate to CPU %d\n", cpu); 1929889facbeSLen Brown return -1; 1930889facbeSLen Brown } 1931889facbeSLen Brown 1932889facbeSLen Brown if (get_msr(cpu, MSR_RAPL_POWER_UNIT, &msr)) 1933889facbeSLen Brown return -1; 1934889facbeSLen Brown 1935889facbeSLen Brown if (verbose) { 1936889facbeSLen Brown fprintf(stderr, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx " 1937889facbeSLen Brown "(%f Watts, %f Joules, %f sec.)\n", cpu, msr, 1938144b44b1SLen Brown rapl_power_units, rapl_energy_units, rapl_time_units); 1939889facbeSLen Brown } 1940144b44b1SLen Brown if (do_rapl & RAPL_PKG_POWER_INFO) { 1941144b44b1SLen Brown 1942889facbeSLen Brown if (get_msr(cpu, MSR_PKG_POWER_INFO, &msr)) 1943889facbeSLen Brown return -5; 1944889facbeSLen Brown 1945889facbeSLen Brown 1946889facbeSLen Brown fprintf(stderr, "cpu%d: MSR_PKG_POWER_INFO: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n", 1947889facbeSLen Brown cpu, msr, 1948889facbeSLen Brown ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units, 1949889facbeSLen Brown ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units, 1950889facbeSLen Brown ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units, 1951889facbeSLen Brown ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units); 1952889facbeSLen Brown 1953144b44b1SLen Brown } 1954144b44b1SLen Brown if (do_rapl & RAPL_PKG) { 1955144b44b1SLen Brown 1956889facbeSLen Brown if (get_msr(cpu, MSR_PKG_POWER_LIMIT, &msr)) 1957889facbeSLen Brown return -9; 1958889facbeSLen Brown 1959889facbeSLen Brown fprintf(stderr, "cpu%d: MSR_PKG_POWER_LIMIT: 0x%08llx (%slocked)\n", 1960889facbeSLen Brown cpu, msr, (msr >> 63) & 1 ? "": "UN"); 1961889facbeSLen Brown 1962889facbeSLen Brown print_power_limit_msr(cpu, msr, "PKG Limit #1"); 1963889facbeSLen Brown fprintf(stderr, "cpu%d: PKG Limit #2: %sabled (%f Watts, %f* sec, clamp %sabled)\n", 1964889facbeSLen Brown cpu, 1965889facbeSLen Brown ((msr >> 47) & 1) ? "EN" : "DIS", 1966889facbeSLen Brown ((msr >> 32) & 0x7FFF) * rapl_power_units, 1967889facbeSLen Brown (1.0 + (((msr >> 54) & 0x3)/4.0)) * (1 << ((msr >> 49) & 0x1F)) * rapl_time_units, 1968889facbeSLen Brown ((msr >> 48) & 1) ? "EN" : "DIS"); 1969889facbeSLen Brown } 1970889facbeSLen Brown 1971889facbeSLen Brown if (do_rapl & RAPL_DRAM) { 1972889facbeSLen Brown if (get_msr(cpu, MSR_DRAM_POWER_INFO, &msr)) 1973889facbeSLen Brown return -6; 1974889facbeSLen Brown 1975889facbeSLen Brown 1976889facbeSLen Brown fprintf(stderr, "cpu%d: MSR_DRAM_POWER_INFO,: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n", 1977889facbeSLen Brown cpu, msr, 1978889facbeSLen Brown ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units, 1979889facbeSLen Brown ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units, 1980889facbeSLen Brown ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units, 1981889facbeSLen Brown ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units); 1982889facbeSLen Brown 1983889facbeSLen Brown 1984889facbeSLen Brown if (get_msr(cpu, MSR_DRAM_POWER_LIMIT, &msr)) 1985889facbeSLen Brown return -9; 1986889facbeSLen Brown fprintf(stderr, "cpu%d: MSR_DRAM_POWER_LIMIT: 0x%08llx (%slocked)\n", 1987889facbeSLen Brown cpu, msr, (msr >> 31) & 1 ? "": "UN"); 1988889facbeSLen Brown 1989889facbeSLen Brown print_power_limit_msr(cpu, msr, "DRAM Limit"); 1990889facbeSLen Brown } 1991144b44b1SLen Brown if (do_rapl & RAPL_CORE_POLICY) { 1992889facbeSLen Brown if (verbose) { 1993889facbeSLen Brown if (get_msr(cpu, MSR_PP0_POLICY, &msr)) 1994889facbeSLen Brown return -7; 1995889facbeSLen Brown 1996889facbeSLen Brown fprintf(stderr, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF); 1997144b44b1SLen Brown } 1998144b44b1SLen Brown } 1999144b44b1SLen Brown if (do_rapl & RAPL_CORES) { 2000144b44b1SLen Brown if (verbose) { 2001889facbeSLen Brown 2002889facbeSLen Brown if (get_msr(cpu, MSR_PP0_POWER_LIMIT, &msr)) 2003889facbeSLen Brown return -9; 2004889facbeSLen Brown fprintf(stderr, "cpu%d: MSR_PP0_POWER_LIMIT: 0x%08llx (%slocked)\n", 2005889facbeSLen Brown cpu, msr, (msr >> 31) & 1 ? "": "UN"); 2006889facbeSLen Brown print_power_limit_msr(cpu, msr, "Cores Limit"); 2007889facbeSLen Brown } 2008889facbeSLen Brown } 2009889facbeSLen Brown if (do_rapl & RAPL_GFX) { 2010889facbeSLen Brown if (verbose) { 2011889facbeSLen Brown if (get_msr(cpu, MSR_PP1_POLICY, &msr)) 2012889facbeSLen Brown return -8; 2013889facbeSLen Brown 2014889facbeSLen Brown fprintf(stderr, "cpu%d: MSR_PP1_POLICY: %lld\n", cpu, msr & 0xF); 2015889facbeSLen Brown 2016889facbeSLen Brown if (get_msr(cpu, MSR_PP1_POWER_LIMIT, &msr)) 2017889facbeSLen Brown return -9; 2018889facbeSLen Brown fprintf(stderr, "cpu%d: MSR_PP1_POWER_LIMIT: 0x%08llx (%slocked)\n", 2019889facbeSLen Brown cpu, msr, (msr >> 31) & 1 ? "": "UN"); 2020889facbeSLen Brown print_power_limit_msr(cpu, msr, "GFX Limit"); 2021889facbeSLen Brown } 2022889facbeSLen Brown } 2023889facbeSLen Brown return 0; 2024889facbeSLen Brown } 2025889facbeSLen Brown 2026d7899447SLen Brown /* 2027d7899447SLen Brown * SNB adds support for additional MSRs: 2028d7899447SLen Brown * 2029d7899447SLen Brown * MSR_PKG_C7_RESIDENCY 0x000003fa 2030d7899447SLen Brown * MSR_CORE_C7_RESIDENCY 0x000003fe 2031d7899447SLen Brown * MSR_PKG_C2_RESIDENCY 0x0000060d 2032d7899447SLen Brown */ 2033103a8feaSLen Brown 2034d7899447SLen Brown int has_snb_msrs(unsigned int family, unsigned int model) 2035103a8feaSLen Brown { 2036103a8feaSLen Brown if (!genuine_intel) 2037103a8feaSLen Brown return 0; 2038103a8feaSLen Brown 2039103a8feaSLen Brown switch (model) { 2040103a8feaSLen Brown case 0x2A: 2041103a8feaSLen Brown case 0x2D: 2042650a37f3SLen Brown case 0x3A: /* IVB */ 20431300651bSLen Brown case 0x3E: /* IVB Xeon */ 204470b43400SLen Brown case 0x3C: /* HSW */ 204570b43400SLen Brown case 0x3F: /* HSW */ 204670b43400SLen Brown case 0x45: /* HSW */ 2047149c2319SLen Brown case 0x46: /* HSW */ 20484e8e863fSLen Brown case 0x3D: /* BDW */ 20494e8e863fSLen Brown case 0x4F: /* BDX */ 20504e8e863fSLen Brown case 0x56: /* BDX-DE */ 2051103a8feaSLen Brown return 1; 2052103a8feaSLen Brown } 2053103a8feaSLen Brown return 0; 2054103a8feaSLen Brown } 2055103a8feaSLen Brown 2056d7899447SLen Brown /* 2057d7899447SLen Brown * HSW adds support for additional MSRs: 2058d7899447SLen Brown * 2059d7899447SLen Brown * MSR_PKG_C8_RESIDENCY 0x00000630 2060d7899447SLen Brown * MSR_PKG_C9_RESIDENCY 0x00000631 2061d7899447SLen Brown * MSR_PKG_C10_RESIDENCY 0x00000632 2062d7899447SLen Brown */ 2063d7899447SLen Brown int has_hsw_msrs(unsigned int family, unsigned int model) 2064ca58710fSKristen Carlson Accardi { 2065ca58710fSKristen Carlson Accardi if (!genuine_intel) 2066ca58710fSKristen Carlson Accardi return 0; 2067ca58710fSKristen Carlson Accardi 2068ca58710fSKristen Carlson Accardi switch (model) { 20694e8e863fSLen Brown case 0x45: /* HSW */ 20704e8e863fSLen Brown case 0x3D: /* BDW */ 2071ca58710fSKristen Carlson Accardi return 1; 2072ca58710fSKristen Carlson Accardi } 2073ca58710fSKristen Carlson Accardi return 0; 2074ca58710fSKristen Carlson Accardi } 2075ca58710fSKristen Carlson Accardi 2076ca58710fSKristen Carlson Accardi 2077144b44b1SLen Brown int is_slm(unsigned int family, unsigned int model) 2078144b44b1SLen Brown { 2079144b44b1SLen Brown if (!genuine_intel) 2080144b44b1SLen Brown return 0; 2081144b44b1SLen Brown switch (model) { 2082144b44b1SLen Brown case 0x37: /* BYT */ 2083144b44b1SLen Brown case 0x4D: /* AVN */ 2084144b44b1SLen Brown return 1; 2085144b44b1SLen Brown } 2086144b44b1SLen Brown return 0; 2087144b44b1SLen Brown } 2088144b44b1SLen Brown 2089144b44b1SLen Brown #define SLM_BCLK_FREQS 5 2090144b44b1SLen Brown double slm_freq_table[SLM_BCLK_FREQS] = { 83.3, 100.0, 133.3, 116.7, 80.0}; 2091144b44b1SLen Brown 2092144b44b1SLen Brown double slm_bclk(void) 2093144b44b1SLen Brown { 2094144b44b1SLen Brown unsigned long long msr = 3; 2095144b44b1SLen Brown unsigned int i; 2096144b44b1SLen Brown double freq; 2097144b44b1SLen Brown 2098144b44b1SLen Brown if (get_msr(0, MSR_FSB_FREQ, &msr)) 2099144b44b1SLen Brown fprintf(stderr, "SLM BCLK: unknown\n"); 2100144b44b1SLen Brown 2101144b44b1SLen Brown i = msr & 0xf; 2102144b44b1SLen Brown if (i >= SLM_BCLK_FREQS) { 2103144b44b1SLen Brown fprintf(stderr, "SLM BCLK[%d] invalid\n", i); 2104144b44b1SLen Brown msr = 3; 2105144b44b1SLen Brown } 2106144b44b1SLen Brown freq = slm_freq_table[i]; 2107144b44b1SLen Brown 2108144b44b1SLen Brown fprintf(stderr, "SLM BCLK: %.1f Mhz\n", freq); 2109144b44b1SLen Brown 2110144b44b1SLen Brown return freq; 2111144b44b1SLen Brown } 2112144b44b1SLen Brown 2113103a8feaSLen Brown double discover_bclk(unsigned int family, unsigned int model) 2114103a8feaSLen Brown { 2115d7899447SLen Brown if (has_snb_msrs(family, model)) 2116103a8feaSLen Brown return 100.00; 2117144b44b1SLen Brown else if (is_slm(family, model)) 2118144b44b1SLen Brown return slm_bclk(); 2119103a8feaSLen Brown else 2120103a8feaSLen Brown return 133.33; 2121103a8feaSLen Brown } 2122103a8feaSLen Brown 2123889facbeSLen Brown /* 2124889facbeSLen Brown * MSR_IA32_TEMPERATURE_TARGET indicates the temperature where 2125889facbeSLen Brown * the Thermal Control Circuit (TCC) activates. 2126889facbeSLen Brown * This is usually equal to tjMax. 2127889facbeSLen Brown * 2128889facbeSLen Brown * Older processors do not have this MSR, so there we guess, 2129889facbeSLen Brown * but also allow cmdline over-ride with -T. 2130889facbeSLen Brown * 2131889facbeSLen Brown * Several MSR temperature values are in units of degrees-C 2132889facbeSLen Brown * below this value, including the Digital Thermal Sensor (DTS), 2133889facbeSLen Brown * Package Thermal Management Sensor (PTM), and thermal event thresholds. 2134889facbeSLen Brown */ 2135889facbeSLen Brown int set_temperature_target(struct thread_data *t, struct core_data *c, struct pkg_data *p) 2136889facbeSLen Brown { 2137889facbeSLen Brown unsigned long long msr; 2138889facbeSLen Brown unsigned int target_c_local; 2139889facbeSLen Brown int cpu; 2140889facbeSLen Brown 2141889facbeSLen Brown /* tcc_activation_temp is used only for dts or ptm */ 2142889facbeSLen Brown if (!(do_dts || do_ptm)) 2143889facbeSLen Brown return 0; 2144889facbeSLen Brown 2145889facbeSLen Brown /* this is a per-package concept */ 2146889facbeSLen Brown if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 2147889facbeSLen Brown return 0; 2148889facbeSLen Brown 2149889facbeSLen Brown cpu = t->cpu_id; 2150889facbeSLen Brown if (cpu_migrate(cpu)) { 2151889facbeSLen Brown fprintf(stderr, "Could not migrate to CPU %d\n", cpu); 2152889facbeSLen Brown return -1; 2153889facbeSLen Brown } 2154889facbeSLen Brown 2155889facbeSLen Brown if (tcc_activation_temp_override != 0) { 2156889facbeSLen Brown tcc_activation_temp = tcc_activation_temp_override; 2157889facbeSLen Brown fprintf(stderr, "cpu%d: Using cmdline TCC Target (%d C)\n", 2158889facbeSLen Brown cpu, tcc_activation_temp); 2159889facbeSLen Brown return 0; 2160889facbeSLen Brown } 2161889facbeSLen Brown 2162889facbeSLen Brown /* Temperature Target MSR is Nehalem and newer only */ 2163d7899447SLen Brown if (!do_nhm_platform_info) 2164889facbeSLen Brown goto guess; 2165889facbeSLen Brown 2166889facbeSLen Brown if (get_msr(0, MSR_IA32_TEMPERATURE_TARGET, &msr)) 2167889facbeSLen Brown goto guess; 2168889facbeSLen Brown 21693482124aSJean Delvare target_c_local = (msr >> 16) & 0xFF; 2170889facbeSLen Brown 2171889facbeSLen Brown if (verbose) 2172889facbeSLen Brown fprintf(stderr, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n", 2173889facbeSLen Brown cpu, msr, target_c_local); 2174889facbeSLen Brown 21753482124aSJean Delvare if (!target_c_local) 2176889facbeSLen Brown goto guess; 2177889facbeSLen Brown 2178889facbeSLen Brown tcc_activation_temp = target_c_local; 2179889facbeSLen Brown 2180889facbeSLen Brown return 0; 2181889facbeSLen Brown 2182889facbeSLen Brown guess: 2183889facbeSLen Brown tcc_activation_temp = TJMAX_DEFAULT; 2184889facbeSLen Brown fprintf(stderr, "cpu%d: Guessing tjMax %d C, Please use -T to specify\n", 2185889facbeSLen Brown cpu, tcc_activation_temp); 2186889facbeSLen Brown 2187889facbeSLen Brown return 0; 2188889facbeSLen Brown } 2189103a8feaSLen Brown void check_cpuid() 2190103a8feaSLen Brown { 2191103a8feaSLen Brown unsigned int eax, ebx, ecx, edx, max_level; 2192103a8feaSLen Brown unsigned int fms, family, model, stepping; 2193103a8feaSLen Brown 2194103a8feaSLen Brown eax = ebx = ecx = edx = 0; 2195103a8feaSLen Brown 21962b92865eSJosh Triplett __get_cpuid(0, &max_level, &ebx, &ecx, &edx); 2197103a8feaSLen Brown 2198103a8feaSLen Brown if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e) 2199103a8feaSLen Brown genuine_intel = 1; 2200103a8feaSLen Brown 2201103a8feaSLen Brown if (verbose) 2202889facbeSLen Brown fprintf(stderr, "CPUID(0): %.4s%.4s%.4s ", 2203103a8feaSLen Brown (char *)&ebx, (char *)&edx, (char *)&ecx); 2204103a8feaSLen Brown 22052b92865eSJosh Triplett __get_cpuid(1, &fms, &ebx, &ecx, &edx); 2206103a8feaSLen Brown family = (fms >> 8) & 0xf; 2207103a8feaSLen Brown model = (fms >> 4) & 0xf; 2208103a8feaSLen Brown stepping = fms & 0xf; 2209103a8feaSLen Brown if (family == 6 || family == 0xf) 2210103a8feaSLen Brown model += ((fms >> 16) & 0xf) << 4; 2211103a8feaSLen Brown 2212103a8feaSLen Brown if (verbose) 2213103a8feaSLen Brown fprintf(stderr, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n", 2214103a8feaSLen Brown max_level, family, model, stepping, family, model, stepping); 2215103a8feaSLen Brown 2216b2c95d90SJosh Triplett if (!(edx & (1 << 5))) 2217b2c95d90SJosh Triplett errx(1, "CPUID: no MSR"); 2218103a8feaSLen Brown 2219103a8feaSLen Brown /* 2220103a8feaSLen Brown * check max extended function levels of CPUID. 2221103a8feaSLen Brown * This is needed to check for invariant TSC. 2222103a8feaSLen Brown * This check is valid for both Intel and AMD. 2223103a8feaSLen Brown */ 2224103a8feaSLen Brown ebx = ecx = edx = 0; 22252b92865eSJosh Triplett __get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx); 2226103a8feaSLen Brown 2227d7899447SLen Brown if (max_level >= 0x80000007) { 2228103a8feaSLen Brown 2229103a8feaSLen Brown /* 2230103a8feaSLen Brown * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8 2231103a8feaSLen Brown * this check is valid for both Intel and AMD 2232103a8feaSLen Brown */ 22332b92865eSJosh Triplett __get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx); 22348209e054SThomas Renninger has_invariant_tsc = edx & (1 << 8); 2235d7899447SLen Brown } 2236103a8feaSLen Brown 2237103a8feaSLen Brown /* 2238103a8feaSLen Brown * APERF/MPERF is advertised by CPUID.EAX=0x6: ECX.bit0 2239103a8feaSLen Brown * this check is valid for both Intel and AMD 2240103a8feaSLen Brown */ 2241103a8feaSLen Brown 22422b92865eSJosh Triplett __get_cpuid(0x6, &eax, &ebx, &ecx, &edx); 22438209e054SThomas Renninger has_aperf = ecx & (1 << 0); 2244889facbeSLen Brown do_dts = eax & (1 << 0); 2245889facbeSLen Brown do_ptm = eax & (1 << 6); 2246889facbeSLen Brown has_epb = ecx & (1 << 3); 2247889facbeSLen Brown 2248889facbeSLen Brown if (verbose) 2249*a729617cSLen Brown fprintf(stderr, "CPUID(6): %sAPERF, %sDTS, %sPTM, %sEPB\n", 2250*a729617cSLen Brown has_aperf ? "" : "No ", 2251*a729617cSLen Brown do_dts ? "" : "No ", 2252*a729617cSLen Brown do_ptm ? "" : "No ", 2253*a729617cSLen Brown has_epb ? "" : "No "); 2254103a8feaSLen Brown 2255d7899447SLen Brown do_nhm_platform_info = do_nhm_cstates = do_smi = has_nhm_msrs(family, model); 2256d7899447SLen Brown do_snb_cstates = has_snb_msrs(family, model); 2257d7899447SLen Brown do_c8_c9_c10 = has_hsw_msrs(family, model); 2258144b44b1SLen Brown do_slm_cstates = is_slm(family, model); 2259103a8feaSLen Brown bclk = discover_bclk(family, model); 2260103a8feaSLen Brown 2261d7899447SLen Brown do_nhm_turbo_ratio_limit = has_nhm_turbo_ratio_limit(family, model); 22626574a5d5SLen Brown do_ivt_turbo_ratio_limit = has_ivt_turbo_ratio_limit(family, model); 2263889facbeSLen Brown rapl_probe(family, model); 22643a9a941dSLen Brown perf_limit_reasons_probe(family, model); 2265889facbeSLen Brown 2266889facbeSLen Brown return; 2267103a8feaSLen Brown } 2268103a8feaSLen Brown 2269103a8feaSLen Brown 2270103a8feaSLen Brown void usage() 2271103a8feaSLen Brown { 2272f591c38bSAndy Shevchenko errx(1, "%s: [-v][-R][-T][-p|-P|-S][-c MSR#][-C MSR#][-m MSR#][-M MSR#][-i interval_sec | command ...]\n", 2273103a8feaSLen Brown progname); 2274103a8feaSLen Brown } 2275103a8feaSLen Brown 2276103a8feaSLen Brown 2277103a8feaSLen Brown /* 2278103a8feaSLen Brown * in /dev/cpu/ return success for names that are numbers 2279103a8feaSLen Brown * ie. filter out ".", "..", "microcode". 2280103a8feaSLen Brown */ 2281103a8feaSLen Brown int dir_filter(const struct dirent *dirp) 2282103a8feaSLen Brown { 2283103a8feaSLen Brown if (isdigit(dirp->d_name[0])) 2284103a8feaSLen Brown return 1; 2285103a8feaSLen Brown else 2286103a8feaSLen Brown return 0; 2287103a8feaSLen Brown } 2288103a8feaSLen Brown 2289103a8feaSLen Brown int open_dev_cpu_msr(int dummy1) 2290103a8feaSLen Brown { 2291103a8feaSLen Brown return 0; 2292103a8feaSLen Brown } 2293103a8feaSLen Brown 2294c98d5d94SLen Brown void topology_probe() 2295c98d5d94SLen Brown { 2296c98d5d94SLen Brown int i; 2297c98d5d94SLen Brown int max_core_id = 0; 2298c98d5d94SLen Brown int max_package_id = 0; 2299c98d5d94SLen Brown int max_siblings = 0; 2300c98d5d94SLen Brown struct cpu_topology { 2301c98d5d94SLen Brown int core_id; 2302c98d5d94SLen Brown int physical_package_id; 2303c98d5d94SLen Brown } *cpus; 2304c98d5d94SLen Brown 2305c98d5d94SLen Brown /* Initialize num_cpus, max_cpu_num */ 2306c98d5d94SLen Brown topo.num_cpus = 0; 2307c98d5d94SLen Brown topo.max_cpu_num = 0; 2308c98d5d94SLen Brown for_all_proc_cpus(count_cpus); 2309c98d5d94SLen Brown if (!summary_only && topo.num_cpus > 1) 2310c98d5d94SLen Brown show_cpu = 1; 2311c98d5d94SLen Brown 2312c98d5d94SLen Brown if (verbose > 1) 2313c98d5d94SLen Brown fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num); 2314c98d5d94SLen Brown 2315c98d5d94SLen Brown cpus = calloc(1, (topo.max_cpu_num + 1) * sizeof(struct cpu_topology)); 2316b2c95d90SJosh Triplett if (cpus == NULL) 2317b2c95d90SJosh Triplett err(1, "calloc cpus"); 2318c98d5d94SLen Brown 2319c98d5d94SLen Brown /* 2320c98d5d94SLen Brown * Allocate and initialize cpu_present_set 2321c98d5d94SLen Brown */ 2322c98d5d94SLen Brown cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1)); 2323b2c95d90SJosh Triplett if (cpu_present_set == NULL) 2324b2c95d90SJosh Triplett err(3, "CPU_ALLOC"); 2325c98d5d94SLen Brown cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); 2326c98d5d94SLen Brown CPU_ZERO_S(cpu_present_setsize, cpu_present_set); 2327c98d5d94SLen Brown for_all_proc_cpus(mark_cpu_present); 2328c98d5d94SLen Brown 2329c98d5d94SLen Brown /* 2330c98d5d94SLen Brown * Allocate and initialize cpu_affinity_set 2331c98d5d94SLen Brown */ 2332c98d5d94SLen Brown cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1)); 2333b2c95d90SJosh Triplett if (cpu_affinity_set == NULL) 2334b2c95d90SJosh Triplett err(3, "CPU_ALLOC"); 2335c98d5d94SLen Brown cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); 2336c98d5d94SLen Brown CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set); 2337c98d5d94SLen Brown 2338c98d5d94SLen Brown 2339c98d5d94SLen Brown /* 2340c98d5d94SLen Brown * For online cpus 2341c98d5d94SLen Brown * find max_core_id, max_package_id 2342c98d5d94SLen Brown */ 2343c98d5d94SLen Brown for (i = 0; i <= topo.max_cpu_num; ++i) { 2344c98d5d94SLen Brown int siblings; 2345c98d5d94SLen Brown 2346c98d5d94SLen Brown if (cpu_is_not_present(i)) { 2347c98d5d94SLen Brown if (verbose > 1) 2348c98d5d94SLen Brown fprintf(stderr, "cpu%d NOT PRESENT\n", i); 2349c98d5d94SLen Brown continue; 2350c98d5d94SLen Brown } 2351c98d5d94SLen Brown cpus[i].core_id = get_core_id(i); 2352c98d5d94SLen Brown if (cpus[i].core_id > max_core_id) 2353c98d5d94SLen Brown max_core_id = cpus[i].core_id; 2354c98d5d94SLen Brown 2355c98d5d94SLen Brown cpus[i].physical_package_id = get_physical_package_id(i); 2356c98d5d94SLen Brown if (cpus[i].physical_package_id > max_package_id) 2357c98d5d94SLen Brown max_package_id = cpus[i].physical_package_id; 2358c98d5d94SLen Brown 2359c98d5d94SLen Brown siblings = get_num_ht_siblings(i); 2360c98d5d94SLen Brown if (siblings > max_siblings) 2361c98d5d94SLen Brown max_siblings = siblings; 2362c98d5d94SLen Brown if (verbose > 1) 2363c98d5d94SLen Brown fprintf(stderr, "cpu %d pkg %d core %d\n", 2364c98d5d94SLen Brown i, cpus[i].physical_package_id, cpus[i].core_id); 2365c98d5d94SLen Brown } 2366c98d5d94SLen Brown topo.num_cores_per_pkg = max_core_id + 1; 2367c98d5d94SLen Brown if (verbose > 1) 2368c98d5d94SLen Brown fprintf(stderr, "max_core_id %d, sizing for %d cores per package\n", 2369c98d5d94SLen Brown max_core_id, topo.num_cores_per_pkg); 2370c98d5d94SLen Brown if (!summary_only && topo.num_cores_per_pkg > 1) 2371c98d5d94SLen Brown show_core = 1; 2372c98d5d94SLen Brown 2373c98d5d94SLen Brown topo.num_packages = max_package_id + 1; 2374c98d5d94SLen Brown if (verbose > 1) 2375c98d5d94SLen Brown fprintf(stderr, "max_package_id %d, sizing for %d packages\n", 2376c98d5d94SLen Brown max_package_id, topo.num_packages); 2377c98d5d94SLen Brown if (!summary_only && topo.num_packages > 1) 2378c98d5d94SLen Brown show_pkg = 1; 2379c98d5d94SLen Brown 2380c98d5d94SLen Brown topo.num_threads_per_core = max_siblings; 2381c98d5d94SLen Brown if (verbose > 1) 2382c98d5d94SLen Brown fprintf(stderr, "max_siblings %d\n", max_siblings); 2383c98d5d94SLen Brown 2384c98d5d94SLen Brown free(cpus); 2385c98d5d94SLen Brown } 2386c98d5d94SLen Brown 2387c98d5d94SLen Brown void 2388c98d5d94SLen Brown allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p) 2389c98d5d94SLen Brown { 2390c98d5d94SLen Brown int i; 2391c98d5d94SLen Brown 2392c98d5d94SLen Brown *t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg * 2393c98d5d94SLen Brown topo.num_packages, sizeof(struct thread_data)); 2394c98d5d94SLen Brown if (*t == NULL) 2395c98d5d94SLen Brown goto error; 2396c98d5d94SLen Brown 2397c98d5d94SLen Brown for (i = 0; i < topo.num_threads_per_core * 2398c98d5d94SLen Brown topo.num_cores_per_pkg * topo.num_packages; i++) 2399c98d5d94SLen Brown (*t)[i].cpu_id = -1; 2400c98d5d94SLen Brown 2401c98d5d94SLen Brown *c = calloc(topo.num_cores_per_pkg * topo.num_packages, 2402c98d5d94SLen Brown sizeof(struct core_data)); 2403c98d5d94SLen Brown if (*c == NULL) 2404c98d5d94SLen Brown goto error; 2405c98d5d94SLen Brown 2406c98d5d94SLen Brown for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++) 2407c98d5d94SLen Brown (*c)[i].core_id = -1; 2408c98d5d94SLen Brown 2409c98d5d94SLen Brown *p = calloc(topo.num_packages, sizeof(struct pkg_data)); 2410c98d5d94SLen Brown if (*p == NULL) 2411c98d5d94SLen Brown goto error; 2412c98d5d94SLen Brown 2413c98d5d94SLen Brown for (i = 0; i < topo.num_packages; i++) 2414c98d5d94SLen Brown (*p)[i].package_id = i; 2415c98d5d94SLen Brown 2416c98d5d94SLen Brown return; 2417c98d5d94SLen Brown error: 2418b2c95d90SJosh Triplett err(1, "calloc counters"); 2419c98d5d94SLen Brown } 2420c98d5d94SLen Brown /* 2421c98d5d94SLen Brown * init_counter() 2422c98d5d94SLen Brown * 2423c98d5d94SLen Brown * set cpu_id, core_num, pkg_num 2424c98d5d94SLen Brown * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE 2425c98d5d94SLen Brown * 2426c98d5d94SLen Brown * increment topo.num_cores when 1st core in pkg seen 2427c98d5d94SLen Brown */ 2428c98d5d94SLen Brown void init_counter(struct thread_data *thread_base, struct core_data *core_base, 2429c98d5d94SLen Brown struct pkg_data *pkg_base, int thread_num, int core_num, 2430c98d5d94SLen Brown int pkg_num, int cpu_id) 2431c98d5d94SLen Brown { 2432c98d5d94SLen Brown struct thread_data *t; 2433c98d5d94SLen Brown struct core_data *c; 2434c98d5d94SLen Brown struct pkg_data *p; 2435c98d5d94SLen Brown 2436c98d5d94SLen Brown t = GET_THREAD(thread_base, thread_num, core_num, pkg_num); 2437c98d5d94SLen Brown c = GET_CORE(core_base, core_num, pkg_num); 2438c98d5d94SLen Brown p = GET_PKG(pkg_base, pkg_num); 2439c98d5d94SLen Brown 2440c98d5d94SLen Brown t->cpu_id = cpu_id; 2441c98d5d94SLen Brown if (thread_num == 0) { 2442c98d5d94SLen Brown t->flags |= CPU_IS_FIRST_THREAD_IN_CORE; 2443c98d5d94SLen Brown if (cpu_is_first_core_in_package(cpu_id)) 2444c98d5d94SLen Brown t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE; 2445c98d5d94SLen Brown } 2446c98d5d94SLen Brown 2447c98d5d94SLen Brown c->core_id = core_num; 2448c98d5d94SLen Brown p->package_id = pkg_num; 2449c98d5d94SLen Brown } 2450c98d5d94SLen Brown 2451c98d5d94SLen Brown 2452c98d5d94SLen Brown int initialize_counters(int cpu_id) 2453c98d5d94SLen Brown { 2454c98d5d94SLen Brown int my_thread_id, my_core_id, my_package_id; 2455c98d5d94SLen Brown 2456c98d5d94SLen Brown my_package_id = get_physical_package_id(cpu_id); 2457c98d5d94SLen Brown my_core_id = get_core_id(cpu_id); 2458c98d5d94SLen Brown 2459c98d5d94SLen Brown if (cpu_is_first_sibling_in_core(cpu_id)) { 2460c98d5d94SLen Brown my_thread_id = 0; 2461c98d5d94SLen Brown topo.num_cores++; 2462c98d5d94SLen Brown } else { 2463c98d5d94SLen Brown my_thread_id = 1; 2464c98d5d94SLen Brown } 2465c98d5d94SLen Brown 2466c98d5d94SLen Brown init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id); 2467c98d5d94SLen Brown init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id); 2468c98d5d94SLen Brown return 0; 2469c98d5d94SLen Brown } 2470c98d5d94SLen Brown 2471c98d5d94SLen Brown void allocate_output_buffer() 2472c98d5d94SLen Brown { 24733b4d5c7fSAndy Shevchenko output_buffer = calloc(1, (1 + topo.num_cpus) * 1024); 2474c98d5d94SLen Brown outp = output_buffer; 2475b2c95d90SJosh Triplett if (outp == NULL) 2476b2c95d90SJosh Triplett err(-1, "calloc output buffer"); 2477c98d5d94SLen Brown } 2478c98d5d94SLen Brown 2479c98d5d94SLen Brown void setup_all_buffers(void) 2480c98d5d94SLen Brown { 2481c98d5d94SLen Brown topology_probe(); 2482c98d5d94SLen Brown allocate_counters(&thread_even, &core_even, &package_even); 2483c98d5d94SLen Brown allocate_counters(&thread_odd, &core_odd, &package_odd); 2484c98d5d94SLen Brown allocate_output_buffer(); 2485c98d5d94SLen Brown for_all_proc_cpus(initialize_counters); 2486c98d5d94SLen Brown } 24873b4d5c7fSAndy Shevchenko 2488103a8feaSLen Brown void turbostat_init() 2489103a8feaSLen Brown { 2490103a8feaSLen Brown check_dev_msr(); 249198481e79SLen Brown check_permissions(); 249298481e79SLen Brown check_cpuid(); 2493103a8feaSLen Brown 2494c98d5d94SLen Brown setup_all_buffers(); 2495103a8feaSLen Brown 2496103a8feaSLen Brown if (verbose) 2497c98d5d94SLen Brown print_verbose_header(); 2498889facbeSLen Brown 2499889facbeSLen Brown if (verbose) 2500889facbeSLen Brown for_all_cpus(print_epb, ODD_COUNTERS); 2501889facbeSLen Brown 2502889facbeSLen Brown if (verbose) 25033a9a941dSLen Brown for_all_cpus(print_perf_limit, ODD_COUNTERS); 25043a9a941dSLen Brown 25053a9a941dSLen Brown if (verbose) 2506889facbeSLen Brown for_all_cpus(print_rapl, ODD_COUNTERS); 2507889facbeSLen Brown 2508889facbeSLen Brown for_all_cpus(set_temperature_target, ODD_COUNTERS); 2509889facbeSLen Brown 2510889facbeSLen Brown if (verbose) 2511889facbeSLen Brown for_all_cpus(print_thermal, ODD_COUNTERS); 2512103a8feaSLen Brown } 2513103a8feaSLen Brown 2514103a8feaSLen Brown int fork_it(char **argv) 2515103a8feaSLen Brown { 2516103a8feaSLen Brown pid_t child_pid; 2517d91bb17cSLen Brown int status; 2518d15cf7c1SLen Brown 2519d91bb17cSLen Brown status = for_all_cpus(get_counters, EVEN_COUNTERS); 2520d91bb17cSLen Brown if (status) 2521d91bb17cSLen Brown exit(status); 2522d15cf7c1SLen Brown /* clear affinity side-effect of get_counters() */ 2523d15cf7c1SLen Brown sched_setaffinity(0, cpu_present_setsize, cpu_present_set); 2524103a8feaSLen Brown gettimeofday(&tv_even, (struct timezone *)NULL); 2525103a8feaSLen Brown 2526103a8feaSLen Brown child_pid = fork(); 2527103a8feaSLen Brown if (!child_pid) { 2528103a8feaSLen Brown /* child */ 2529103a8feaSLen Brown execvp(argv[0], argv); 2530103a8feaSLen Brown } else { 2531103a8feaSLen Brown 2532103a8feaSLen Brown /* parent */ 2533b2c95d90SJosh Triplett if (child_pid == -1) 2534b2c95d90SJosh Triplett err(1, "fork"); 2535103a8feaSLen Brown 2536103a8feaSLen Brown signal(SIGINT, SIG_IGN); 2537103a8feaSLen Brown signal(SIGQUIT, SIG_IGN); 2538b2c95d90SJosh Triplett if (waitpid(child_pid, &status, 0) == -1) 2539b2c95d90SJosh Triplett err(status, "waitpid"); 2540103a8feaSLen Brown } 2541c98d5d94SLen Brown /* 2542c98d5d94SLen Brown * n.b. fork_it() does not check for errors from for_all_cpus() 2543c98d5d94SLen Brown * because re-starting is problematic when forking 2544c98d5d94SLen Brown */ 2545c98d5d94SLen Brown for_all_cpus(get_counters, ODD_COUNTERS); 2546103a8feaSLen Brown gettimeofday(&tv_odd, (struct timezone *)NULL); 2547103a8feaSLen Brown timersub(&tv_odd, &tv_even, &tv_delta); 2548c98d5d94SLen Brown for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); 2549c98d5d94SLen Brown compute_average(EVEN_COUNTERS); 2550c98d5d94SLen Brown format_all_counters(EVEN_COUNTERS); 2551c98d5d94SLen Brown flush_stderr(); 2552103a8feaSLen Brown 25536eab04a8SJustin P. Mattock fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0); 2554103a8feaSLen Brown 2555d91bb17cSLen Brown return status; 2556103a8feaSLen Brown } 2557103a8feaSLen Brown 25583b4d5c7fSAndy Shevchenko int get_and_dump_counters(void) 25593b4d5c7fSAndy Shevchenko { 25603b4d5c7fSAndy Shevchenko int status; 25613b4d5c7fSAndy Shevchenko 25623b4d5c7fSAndy Shevchenko status = for_all_cpus(get_counters, ODD_COUNTERS); 25633b4d5c7fSAndy Shevchenko if (status) 25643b4d5c7fSAndy Shevchenko return status; 25653b4d5c7fSAndy Shevchenko 25663b4d5c7fSAndy Shevchenko status = for_all_cpus(dump_counters, ODD_COUNTERS); 25673b4d5c7fSAndy Shevchenko if (status) 25683b4d5c7fSAndy Shevchenko return status; 25693b4d5c7fSAndy Shevchenko 25703b4d5c7fSAndy Shevchenko flush_stdout(); 25713b4d5c7fSAndy Shevchenko 25723b4d5c7fSAndy Shevchenko return status; 25733b4d5c7fSAndy Shevchenko } 25743b4d5c7fSAndy Shevchenko 2575103a8feaSLen Brown void cmdline(int argc, char **argv) 2576103a8feaSLen Brown { 2577103a8feaSLen Brown int opt; 2578103a8feaSLen Brown 2579103a8feaSLen Brown progname = argv[0]; 2580103a8feaSLen Brown 25813b4d5c7fSAndy Shevchenko while ((opt = getopt(argc, argv, "+pPsSvi:c:C:m:M:RJT:")) != -1) { 2582103a8feaSLen Brown switch (opt) { 2583f9240813SLen Brown case 'p': 2584c98d5d94SLen Brown show_core_only++; 2585c98d5d94SLen Brown break; 2586f9240813SLen Brown case 'P': 2587c98d5d94SLen Brown show_pkg_only++; 2588c98d5d94SLen Brown break; 25893b4d5c7fSAndy Shevchenko case 's': 25903b4d5c7fSAndy Shevchenko dump_only++; 25913b4d5c7fSAndy Shevchenko break; 2592f9240813SLen Brown case 'S': 2593e23da037SLen Brown summary_only++; 2594e23da037SLen Brown break; 2595103a8feaSLen Brown case 'v': 2596103a8feaSLen Brown verbose++; 2597103a8feaSLen Brown break; 2598103a8feaSLen Brown case 'i': 2599103a8feaSLen Brown interval_sec = atoi(optarg); 2600103a8feaSLen Brown break; 2601f9240813SLen Brown case 'c': 26028e180f3cSLen Brown sscanf(optarg, "%x", &extra_delta_offset32); 26038e180f3cSLen Brown break; 2604f9240813SLen Brown case 'C': 26058e180f3cSLen Brown sscanf(optarg, "%x", &extra_delta_offset64); 26068e180f3cSLen Brown break; 26072f32edf1SLen Brown case 'm': 26082f32edf1SLen Brown sscanf(optarg, "%x", &extra_msr_offset32); 26092f32edf1SLen Brown break; 26102f32edf1SLen Brown case 'M': 26112f32edf1SLen Brown sscanf(optarg, "%x", &extra_msr_offset64); 2612103a8feaSLen Brown break; 2613889facbeSLen Brown case 'R': 2614889facbeSLen Brown rapl_verbose++; 2615889facbeSLen Brown break; 2616889facbeSLen Brown case 'T': 2617889facbeSLen Brown tcc_activation_temp_override = atoi(optarg); 2618889facbeSLen Brown break; 26195c56be9aSDirk Brandewie case 'J': 26205c56be9aSDirk Brandewie rapl_joules++; 26215c56be9aSDirk Brandewie break; 26225c56be9aSDirk Brandewie 2623103a8feaSLen Brown default: 2624103a8feaSLen Brown usage(); 2625103a8feaSLen Brown } 2626103a8feaSLen Brown } 2627103a8feaSLen Brown } 2628103a8feaSLen Brown 2629103a8feaSLen Brown int main(int argc, char **argv) 2630103a8feaSLen Brown { 2631103a8feaSLen Brown cmdline(argc, argv); 2632103a8feaSLen Brown 2633889facbeSLen Brown if (verbose) 2634*a729617cSLen Brown fprintf(stderr, "turbostat v3.9 23-Jan, 2015" 2635103a8feaSLen Brown " - Len Brown <lenb@kernel.org>\n"); 2636103a8feaSLen Brown 2637103a8feaSLen Brown turbostat_init(); 2638103a8feaSLen Brown 26393b4d5c7fSAndy Shevchenko /* dump counters and exit */ 26403b4d5c7fSAndy Shevchenko if (dump_only) 26413b4d5c7fSAndy Shevchenko return get_and_dump_counters(); 26423b4d5c7fSAndy Shevchenko 2643103a8feaSLen Brown /* 2644103a8feaSLen Brown * if any params left, it must be a command to fork 2645103a8feaSLen Brown */ 2646103a8feaSLen Brown if (argc - optind) 2647103a8feaSLen Brown return fork_it(argv + optind); 2648103a8feaSLen Brown else 2649103a8feaSLen Brown turbostat_loop(); 2650103a8feaSLen Brown 2651103a8feaSLen Brown return 0; 2652103a8feaSLen Brown } 2653