turbostat.c 60.8 KB
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/*
 * turbostat -- show CPU frequency and C-state residency
 * on modern Intel turbo-capable processors.
 *
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 * Copyright (c) 2013 Intel Corporation.
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 * Len Brown <len.brown@intel.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
 */

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#define _GNU_SOURCE
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#include MSRHEADER
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#include <stdarg.h>
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#include <stdio.h>
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#include <err.h>
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#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <sys/resource.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/time.h>
#include <stdlib.h>
#include <dirent.h>
#include <string.h>
#include <ctype.h>
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#include <sched.h>
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#include <cpuid.h>
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char *proc_stat = "/proc/stat";
unsigned int interval_sec = 5;	/* set with -i interval_sec */
unsigned int verbose;		/* set with -v */
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unsigned int rapl_verbose;	/* set with -R */
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unsigned int rapl_joules;	/* set with -J */
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unsigned int thermal_verbose;	/* set with -T */
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unsigned int summary_only;	/* set with -S */
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unsigned int dump_only;		/* set with -s */
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unsigned int skip_c0;
unsigned int skip_c1;
unsigned int do_nhm_cstates;
unsigned int do_snb_cstates;
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unsigned int do_c8_c9_c10;
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unsigned int do_slm_cstates;
unsigned int use_c1_residency_msr;
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unsigned int has_aperf;
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unsigned int has_epb;
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unsigned int units = 1000000;	/* MHz etc */
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unsigned int genuine_intel;
unsigned int has_invariant_tsc;
unsigned int do_nehalem_platform_info;
unsigned int do_nehalem_turbo_ratio_limit;
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unsigned int do_ivt_turbo_ratio_limit;
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unsigned int extra_msr_offset32;
unsigned int extra_msr_offset64;
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unsigned int extra_delta_offset32;
unsigned int extra_delta_offset64;
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int do_smi;
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double bclk;
unsigned int show_pkg;
unsigned int show_core;
unsigned int show_cpu;
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unsigned int show_pkg_only;
unsigned int show_core_only;
char *output_buffer, *outp;
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unsigned int do_rapl;
unsigned int do_dts;
unsigned int do_ptm;
unsigned int tcc_activation_temp;
unsigned int tcc_activation_temp_override;
double rapl_power_units, rapl_energy_units, rapl_time_units;
double rapl_joule_counter_range;

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#define RAPL_PKG		(1 << 0)
					/* 0x610 MSR_PKG_POWER_LIMIT */
					/* 0x611 MSR_PKG_ENERGY_STATUS */
#define RAPL_PKG_PERF_STATUS	(1 << 1)
					/* 0x613 MSR_PKG_PERF_STATUS */
#define RAPL_PKG_POWER_INFO	(1 << 2)
					/* 0x614 MSR_PKG_POWER_INFO */

#define RAPL_DRAM		(1 << 3)
					/* 0x618 MSR_DRAM_POWER_LIMIT */
					/* 0x619 MSR_DRAM_ENERGY_STATUS */
					/* 0x61c MSR_DRAM_POWER_INFO */
#define RAPL_DRAM_PERF_STATUS	(1 << 4)
					/* 0x61b MSR_DRAM_PERF_STATUS */

#define RAPL_CORES		(1 << 5)
					/* 0x638 MSR_PP0_POWER_LIMIT */
					/* 0x639 MSR_PP0_ENERGY_STATUS */
#define RAPL_CORE_POLICY	(1 << 6)
					/* 0x63a MSR_PP0_POLICY */


#define RAPL_GFX		(1 << 7)
					/* 0x640 MSR_PP1_POWER_LIMIT */
					/* 0x641 MSR_PP1_ENERGY_STATUS */
					/* 0x642 MSR_PP1_POLICY */
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#define	TJMAX_DEFAULT	100

#define MAX(a, b) ((a) > (b) ? (a) : (b))
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int aperf_mperf_unstable;
int backwards_count;
char *progname;

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cpu_set_t *cpu_present_set, *cpu_affinity_set;
size_t cpu_present_setsize, cpu_affinity_setsize;

struct thread_data {
	unsigned long long tsc;
	unsigned long long aperf;
	unsigned long long mperf;
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	unsigned long long c1;
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	unsigned long long extra_msr64;
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	unsigned long long extra_delta64;
	unsigned long long extra_msr32;
	unsigned long long extra_delta32;
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	unsigned int smi_count;
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	unsigned int cpu_id;
	unsigned int flags;
#define CPU_IS_FIRST_THREAD_IN_CORE	0x2
#define CPU_IS_FIRST_CORE_IN_PACKAGE	0x4
} *thread_even, *thread_odd;

struct core_data {
	unsigned long long c3;
	unsigned long long c6;
	unsigned long long c7;
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	unsigned int core_temp_c;
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	unsigned int core_id;
} *core_even, *core_odd;

struct pkg_data {
	unsigned long long pc2;
	unsigned long long pc3;
	unsigned long long pc6;
	unsigned long long pc7;
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	unsigned long long pc8;
	unsigned long long pc9;
	unsigned long long pc10;
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	unsigned int package_id;
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	unsigned int energy_pkg;	/* MSR_PKG_ENERGY_STATUS */
	unsigned int energy_dram;	/* MSR_DRAM_ENERGY_STATUS */
	unsigned int energy_cores;	/* MSR_PP0_ENERGY_STATUS */
	unsigned int energy_gfx;	/* MSR_PP1_ENERGY_STATUS */
	unsigned int rapl_pkg_perf_status;	/* MSR_PKG_PERF_STATUS */
	unsigned int rapl_dram_perf_status;	/* MSR_DRAM_PERF_STATUS */
	unsigned int pkg_temp_c;

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} *package_even, *package_odd;

#define ODD_COUNTERS thread_odd, core_odd, package_odd
#define EVEN_COUNTERS thread_even, core_even, package_even

#define GET_THREAD(thread_base, thread_no, core_no, pkg_no) \
	(thread_base + (pkg_no) * topo.num_cores_per_pkg * \
		topo.num_threads_per_core + \
		(core_no) * topo.num_threads_per_core + (thread_no))
#define GET_CORE(core_base, core_no, pkg_no) \
	(core_base + (pkg_no) * topo.num_cores_per_pkg + (core_no))
#define GET_PKG(pkg_base, pkg_no) (pkg_base + pkg_no)

struct system_summary {
	struct thread_data threads;
	struct core_data cores;
	struct pkg_data packages;
} sum, average;


struct topo_params {
	int num_packages;
	int num_cpus;
	int num_cores;
	int max_cpu_num;
	int num_cores_per_pkg;
	int num_threads_per_core;
} topo;

struct timeval tv_even, tv_odd, tv_delta;

void setup_all_buffers(void);

int cpu_is_not_present(int cpu)
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{
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	return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set);
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}
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/*
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 * run func(thread, core, package) in topology order
 * skip non-present cpus
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 */
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int for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *),
	struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base)
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{
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	int retval, pkg_no, core_no, thread_no;
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	for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
		for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
			for (thread_no = 0; thread_no <
				topo.num_threads_per_core; ++thread_no) {
				struct thread_data *t;
				struct core_data *c;
				struct pkg_data *p;
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				t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);

				if (cpu_is_not_present(t->cpu_id))
					continue;

				c = GET_CORE(core_base, core_no, pkg_no);
				p = GET_PKG(pkg_base, pkg_no);

				retval = func(t, c, p);
				if (retval)
					return retval;
			}
		}
	}
	return 0;
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}

int cpu_migrate(int cpu)
{
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	CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
	CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set);
	if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1)
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		return -1;
	else
		return 0;
}

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int get_msr(int cpu, off_t offset, unsigned long long *msr)
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{
	ssize_t retval;
	char pathname[32];
	int fd;

	sprintf(pathname, "/dev/cpu/%d/msr", cpu);
	fd = open(pathname, O_RDONLY);
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	if (fd < 0)
		return -1;
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	retval = pread(fd, msr, sizeof *msr, offset);
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	close(fd);
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	if (retval != sizeof *msr) {
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		fprintf(stderr, "%s offset 0x%llx read failed\n", pathname, (unsigned long long)offset);
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		return -1;
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	}
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	return 0;
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}

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/*
 * Example Format w/ field column widths:
 *
 * 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
 * 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567
 */

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void print_header(void)
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{
	if (show_pkg)
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		outp += sprintf(outp, "Package ");
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	if (show_core)
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		outp += sprintf(outp, "    Core ");
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	if (show_cpu)
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		outp += sprintf(outp, "    CPU ");
	if (has_aperf)
		outp += sprintf(outp, "Avg_MHz ");
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	if (do_nhm_cstates)
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		outp += sprintf(outp, "  %%Busy ");
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	if (has_aperf)
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		outp += sprintf(outp, "Bzy_MHz ");
	outp += sprintf(outp, "TSC_MHz ");
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	if (do_smi)
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		outp += sprintf(outp, "    SMI ");
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	if (extra_delta_offset32)
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		outp += sprintf(outp, " count 0x%03X ", extra_delta_offset32);
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	if (extra_delta_offset64)
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		outp += sprintf(outp, " COUNT 0x%03X ", extra_delta_offset64);
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	if (extra_msr_offset32)
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		outp += sprintf(outp, "  MSR 0x%03X ", extra_msr_offset32);
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	if (extra_msr_offset64)
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		outp += sprintf(outp, "          MSR 0x%03X ", extra_msr_offset64);
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	if (do_nhm_cstates)
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		outp += sprintf(outp, " CPU%%c1 ");
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	if (do_nhm_cstates && !do_slm_cstates)
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		outp += sprintf(outp, " CPU%%c3 ");
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	if (do_nhm_cstates)
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		outp += sprintf(outp, " CPU%%c6 ");
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	if (do_snb_cstates)
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		outp += sprintf(outp, " CPU%%c7 ");
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	if (do_dts)
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		outp += sprintf(outp, "CoreTmp ");
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	if (do_ptm)
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		outp += sprintf(outp, " PkgTmp ");
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	if (do_snb_cstates)
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		outp += sprintf(outp, "Pkg%%pc2 ");
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	if (do_nhm_cstates && !do_slm_cstates)
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		outp += sprintf(outp, "Pkg%%pc3 ");
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	if (do_nhm_cstates && !do_slm_cstates)
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		outp += sprintf(outp, "Pkg%%pc6 ");
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	if (do_snb_cstates)
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		outp += sprintf(outp, "Pkg%%pc7 ");
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	if (do_c8_c9_c10) {
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		outp += sprintf(outp, "Pkg%%pc8 ");
		outp += sprintf(outp, "Pkg%%pc9 ");
		outp += sprintf(outp, "Pk%%pc10 ");
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	}
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	if (do_rapl && !rapl_joules) {
		if (do_rapl & RAPL_PKG)
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			outp += sprintf(outp, "PkgWatt ");
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		if (do_rapl & RAPL_CORES)
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			outp += sprintf(outp, "CorWatt ");
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		if (do_rapl & RAPL_GFX)
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			outp += sprintf(outp, "GFXWatt ");
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		if (do_rapl & RAPL_DRAM)
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			outp += sprintf(outp, "RAMWatt ");
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		if (do_rapl & RAPL_PKG_PERF_STATUS)
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			outp += sprintf(outp, "  PKG_%% ");
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		if (do_rapl & RAPL_DRAM_PERF_STATUS)
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			outp += sprintf(outp, "  RAM_%% ");
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	} else {
		if (do_rapl & RAPL_PKG)
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			outp += sprintf(outp, "  Pkg_J ");
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		if (do_rapl & RAPL_CORES)
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			outp += sprintf(outp, "  Cor_J ");
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		if (do_rapl & RAPL_GFX)
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			outp += sprintf(outp, "  GFX_J ");
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		if (do_rapl & RAPL_DRAM)
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			outp += sprintf(outp, "  RAM_W ");
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		if (do_rapl & RAPL_PKG_PERF_STATUS)
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			outp += sprintf(outp, "  PKG_%% ");
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		if (do_rapl & RAPL_DRAM_PERF_STATUS)
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			outp += sprintf(outp, "  RAM_%% ");
		outp += sprintf(outp, "  time ");
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	}
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	outp += sprintf(outp, "\n");
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}

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int dump_counters(struct thread_data *t, struct core_data *c,
	struct pkg_data *p)
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{
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	outp += sprintf(outp, "t %p, c %p, p %p\n", t, c, p);
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	if (t) {
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		outp += sprintf(outp, "CPU: %d flags 0x%x\n",
			t->cpu_id, t->flags);
		outp += sprintf(outp, "TSC: %016llX\n", t->tsc);
		outp += sprintf(outp, "aperf: %016llX\n", t->aperf);
		outp += sprintf(outp, "mperf: %016llX\n", t->mperf);
		outp += sprintf(outp, "c1: %016llX\n", t->c1);
		outp += sprintf(outp, "msr0x%x: %08llX\n",
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			extra_delta_offset32, t->extra_delta32);
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		outp += sprintf(outp, "msr0x%x: %016llX\n",
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			extra_delta_offset64, t->extra_delta64);
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		outp += sprintf(outp, "msr0x%x: %08llX\n",
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			extra_msr_offset32, t->extra_msr32);
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		outp += sprintf(outp, "msr0x%x: %016llX\n",
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			extra_msr_offset64, t->extra_msr64);
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		if (do_smi)
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			outp += sprintf(outp, "SMI: %08X\n", t->smi_count);
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	}
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	if (c) {
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		outp += sprintf(outp, "core: %d\n", c->core_id);
		outp += sprintf(outp, "c3: %016llX\n", c->c3);
		outp += sprintf(outp, "c6: %016llX\n", c->c6);
		outp += sprintf(outp, "c7: %016llX\n", c->c7);
		outp += sprintf(outp, "DTS: %dC\n", c->core_temp_c);
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	}
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	if (p) {
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		outp += sprintf(outp, "package: %d\n", p->package_id);
		outp += sprintf(outp, "pc2: %016llX\n", p->pc2);
		outp += sprintf(outp, "pc3: %016llX\n", p->pc3);
		outp += sprintf(outp, "pc6: %016llX\n", p->pc6);
		outp += sprintf(outp, "pc7: %016llX\n", p->pc7);
		outp += sprintf(outp, "pc8: %016llX\n", p->pc8);
		outp += sprintf(outp, "pc9: %016llX\n", p->pc9);
		outp += sprintf(outp, "pc10: %016llX\n", p->pc10);
		outp += sprintf(outp, "Joules PKG: %0X\n", p->energy_pkg);
		outp += sprintf(outp, "Joules COR: %0X\n", p->energy_cores);
		outp += sprintf(outp, "Joules GFX: %0X\n", p->energy_gfx);
		outp += sprintf(outp, "Joules RAM: %0X\n", p->energy_dram);
		outp += sprintf(outp, "Throttle PKG: %0X\n",
			p->rapl_pkg_perf_status);
		outp += sprintf(outp, "Throttle RAM: %0X\n",
			p->rapl_dram_perf_status);
		outp += sprintf(outp, "PTM: %dC\n", p->pkg_temp_c);
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	}
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	outp += sprintf(outp, "\n");

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	return 0;
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}

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/*
 * column formatting convention & formats
 */
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int format_counters(struct thread_data *t, struct core_data *c,
	struct pkg_data *p)
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{
	double interval_float;
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	char *fmt8;
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	 /* if showing only 1st thread in core and this isn't one, bail out */
	if (show_core_only && !(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
		return 0;

	 /* if showing only 1st thread in pkg and this isn't one, bail out */
	if (show_pkg_only && !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
		return 0;

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	interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0;

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	/* topo columns, print blanks on 1st (average) line */
	if (t == &average.threads) {
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		if (show_pkg)
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			outp += sprintf(outp, "       -");
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		if (show_core)
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			outp += sprintf(outp, "       -");
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		if (show_cpu)
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			outp += sprintf(outp, "       -");
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	} else {
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		if (show_pkg) {
			if (p)
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				outp += sprintf(outp, "%8d", p->package_id);
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			else
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				outp += sprintf(outp, "       -");
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		}
		if (show_core) {
			if (c)
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				outp += sprintf(outp, "%8d", c->core_id);
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			else
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				outp += sprintf(outp, "       -");
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		}
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		if (show_cpu)
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			outp += sprintf(outp, "%8d", t->cpu_id);
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	}
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	/* AvgMHz */
	if (has_aperf)
		outp += sprintf(outp, "%8.0f",
			1.0 / units * t->aperf / interval_float);

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	/* %c0 */
	if (do_nhm_cstates) {
		if (!skip_c0)
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			outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc);
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		else
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			outp += sprintf(outp, "********");
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	}

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	/* BzyMHz */
	if (has_aperf)
		outp += sprintf(outp, "%8.0f",
			1.0 * t->tsc / units * t->aperf / t->mperf / interval_float);
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	/* TSC */
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	outp += sprintf(outp, "%8.0f", 1.0 * t->tsc/units/interval_float);
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	/* SMI */
	if (do_smi)
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		outp += sprintf(outp, "%8d", t->smi_count);
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	/* delta */
	if (extra_delta_offset32)
		outp += sprintf(outp, "  %11llu", t->extra_delta32);

	/* DELTA */
	if (extra_delta_offset64)
		outp += sprintf(outp, "  %11llu", t->extra_delta64);
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	/* msr */
	if (extra_msr_offset32)
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		outp += sprintf(outp, "  0x%08llx", t->extra_msr32);
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	/* MSR */
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	if (extra_msr_offset64)
		outp += sprintf(outp, "  0x%016llx", t->extra_msr64);
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	if (do_nhm_cstates) {
		if (!skip_c1)
502
			outp += sprintf(outp, "%8.2f", 100.0 * t->c1/t->tsc);
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		else
504
			outp += sprintf(outp, "********");
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	}
506 507 508 509 510

	/* print per-core data only for 1st thread in core */
	if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
		goto done;

511
	if (do_nhm_cstates && !do_slm_cstates)
512
		outp += sprintf(outp, "%8.2f", 100.0 * c->c3/t->tsc);
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	if (do_nhm_cstates)
514
		outp += sprintf(outp, "%8.2f", 100.0 * c->c6/t->tsc);
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	if (do_snb_cstates)
516
		outp += sprintf(outp, "%8.2f", 100.0 * c->c7/t->tsc);
517

518
	if (do_dts)
519
		outp += sprintf(outp, "%8d", c->core_temp_c);
520

521 522 523 524
	/* print per-package data only for 1st core in package */
	if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
		goto done;

525
	if (do_ptm)
526
		outp += sprintf(outp, "%8d", p->pkg_temp_c);
527

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	if (do_snb_cstates)
529
		outp += sprintf(outp, "%8.2f", 100.0 * p->pc2/t->tsc);
530
	if (do_nhm_cstates && !do_slm_cstates)
531
		outp += sprintf(outp, "%8.2f", 100.0 * p->pc3/t->tsc);
532
	if (do_nhm_cstates && !do_slm_cstates)
533
		outp += sprintf(outp, "%8.2f", 100.0 * p->pc6/t->tsc);
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	if (do_snb_cstates)
535
		outp += sprintf(outp, "%8.2f", 100.0 * p->pc7/t->tsc);
536
	if (do_c8_c9_c10) {
537 538 539
		outp += sprintf(outp, "%8.2f", 100.0 * p->pc8/t->tsc);
		outp += sprintf(outp, "%8.2f", 100.0 * p->pc9/t->tsc);
		outp += sprintf(outp, "%8.2f", 100.0 * p->pc10/t->tsc);
540
	}
541 542 543 544 545

	/*
 	 * If measurement interval exceeds minimum RAPL Joule Counter range,
 	 * indicate that results are suspect by printing "**" in fraction place.
 	 */
546 547 548 549
	if (interval_float < rapl_joule_counter_range)
		fmt8 = "%8.2f";
	else
		fmt8 = " %6.0f**";
550

551 552
	if (do_rapl && !rapl_joules) {
		if (do_rapl & RAPL_PKG)
553
			outp += sprintf(outp, fmt8, p->energy_pkg * rapl_energy_units / interval_float);
554
		if (do_rapl & RAPL_CORES)
555
			outp += sprintf(outp, fmt8, p->energy_cores * rapl_energy_units / interval_float);
556
		if (do_rapl & RAPL_GFX)
557
			outp += sprintf(outp, fmt8, p->energy_gfx * rapl_energy_units / interval_float);
558
		if (do_rapl & RAPL_DRAM)
559
			outp += sprintf(outp, fmt8, p->energy_dram * rapl_energy_units / interval_float);
560
		if (do_rapl & RAPL_PKG_PERF_STATUS)
561
			outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float);
562
		if (do_rapl & RAPL_DRAM_PERF_STATUS)
563
			outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float);
564 565
	} else {
		if (do_rapl & RAPL_PKG)
566
			outp += sprintf(outp, fmt8,
567 568
					p->energy_pkg * rapl_energy_units);
		if (do_rapl & RAPL_CORES)
569
			outp += sprintf(outp, fmt8,
570 571
					p->energy_cores * rapl_energy_units);
		if (do_rapl & RAPL_GFX)
572
			outp += sprintf(outp, fmt8,
573 574
					p->energy_gfx * rapl_energy_units);
		if (do_rapl & RAPL_DRAM)
575
			outp += sprintf(outp, fmt8,
576 577
					p->energy_dram * rapl_energy_units);
		if (do_rapl & RAPL_PKG_PERF_STATUS)
578
			outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float);
579
		if (do_rapl & RAPL_DRAM_PERF_STATUS)
580 581
			outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float);
	outp += sprintf(outp, fmt8, interval_float);
582

583
	}
584 585 586 587
done:
	outp += sprintf(outp, "\n");

	return 0;
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}

590 591 592
void flush_stdout()
{
	fputs(output_buffer, stdout);
593
	fflush(stdout);
594 595 596 597 598 599 600 601
	outp = output_buffer;
}
void flush_stderr()
{
	fputs(output_buffer, stderr);
	outp = output_buffer;
}
void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
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{
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603
	static int printed;
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604

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605 606
	if (!printed || !summary_only)
		print_header();
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608 609 610
	if (topo.num_cpus > 1)
		format_counters(&average.threads, &average.cores,
			&average.packages);
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	printed = 1;

	if (summary_only)
		return;

617
	for_all_cpus(format_counters, t, c, p);
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}

620 621 622 623 624 625 626
#define DELTA_WRAP32(new, old)			\
	if (new > old) {			\
		old = new - old;		\
	} else {				\
		old = 0x100000000 + new - old;	\
	}

627 628 629 630 631 632 633
void
delta_package(struct pkg_data *new, struct pkg_data *old)
{
	old->pc2 = new->pc2 - old->pc2;
	old->pc3 = new->pc3 - old->pc3;
	old->pc6 = new->pc6 - old->pc6;
	old->pc7 = new->pc7 - old->pc7;
634 635 636
	old->pc8 = new->pc8 - old->pc8;
	old->pc9 = new->pc9 - old->pc9;
	old->pc10 = new->pc10 - old->pc10;
637 638 639 640 641 642 643 644
	old->pkg_temp_c = new->pkg_temp_c;

	DELTA_WRAP32(new->energy_pkg, old->energy_pkg);
	DELTA_WRAP32(new->energy_cores, old->energy_cores);
	DELTA_WRAP32(new->energy_gfx, old->energy_gfx);
	DELTA_WRAP32(new->energy_dram, old->energy_dram);
	DELTA_WRAP32(new->rapl_pkg_perf_status, old->rapl_pkg_perf_status);
	DELTA_WRAP32(new->rapl_dram_perf_status, old->rapl_dram_perf_status);
645
}
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647 648
void
delta_core(struct core_data *new, struct core_data *old)
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{
650 651 652
	old->c3 = new->c3 - old->c3;
	old->c6 = new->c6 - old->c6;
	old->c7 = new->c7 - old->c7;
653
	old->core_temp_c = new->core_temp_c;
654
}
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656 657 658
/*
 * old = new - old
 */
659 660 661 662 663 664 665
void
delta_thread(struct thread_data *new, struct thread_data *old,
	struct core_data *core_delta)
{
	old->tsc = new->tsc - old->tsc;

	/* check for TSC < 1 Mcycles over interval */
666 667 668 669
	if (old->tsc < (1000 * 1000))
		errx(-3, "Insanely slow TSC rate, TSC stops in idle?\n"
		     "You can disable all c-states by booting with \"idle=poll\"\n"
		     "or just the deep ones with \"processor.max_cstate=1\"");
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671
	old->c1 = new->c1 - old->c1;
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673 674 675 676
	if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) {
		old->aperf = new->aperf - old->aperf;
		old->mperf = new->mperf - old->mperf;
	} else {
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678 679 680 681
		if (!aperf_mperf_unstable) {
			fprintf(stderr, "%s: APERF or MPERF went backwards *\n", progname);
			fprintf(stderr, "* Frequency results do not cover entire interval *\n");
			fprintf(stderr, "* fix this by running Linux-2.6.30 or later *\n");
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683
			aperf_mperf_unstable = 1;
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684 685
		}
		/*
686 687
		 * mperf delta is likely a huge "positive" number
		 * can not use it for calculating c0 time
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688
		 */
689 690 691
		skip_c0 = 1;
		skip_c1 = 1;
	}
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694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709
	if (use_c1_residency_msr) {
		/*
		 * Some models have a dedicated C1 residency MSR,
		 * which should be more accurate than the derivation below.
		 */
	} else {
		/*
		 * As counter collection is not atomic,
		 * it is possible for mperf's non-halted cycles + idle states
		 * to exceed TSC's all cycles: show c1 = 0% in that case.
		 */
		if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc)
			old->c1 = 0;
		else {
			/* normal case, derive c1 */
			old->c1 = old->tsc - old->mperf - core_delta->c3
710
				- core_delta->c6 - core_delta->c7;
711
		}
712
	}
713

714
	if (old->mperf == 0) {
715
		if (verbose > 1) fprintf(stderr, "cpu%d MPERF 0!\n", old->cpu_id);
716
		old->mperf = 1;	/* divide by 0 protection */
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	}
718

719 720 721 722 723
	old->extra_delta32 = new->extra_delta32 - old->extra_delta32;
	old->extra_delta32 &= 0xFFFFFFFF;

	old->extra_delta64 = new->extra_delta64 - old->extra_delta64;

724
	/*
725
	 * Extra MSR is just a snapshot, simply copy latest w/o subtracting
726
	 */
727 728
	old->extra_msr32 = new->extra_msr32;
	old->extra_msr64 = new->extra_msr64;
729 730 731

	if (do_smi)
		old->smi_count = new->smi_count - old->smi_count;
732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748
}

int delta_cpu(struct thread_data *t, struct core_data *c,
	struct pkg_data *p, struct thread_data *t2,
	struct core_data *c2, struct pkg_data *p2)
{
	/* calculate core delta only for 1st thread in core */
	if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE)
		delta_core(c, c2);

	/* always calculate thread delta */
	delta_thread(t, t2, c2);	/* c2 is core delta */

	/* calculate package delta only for 1st core in package */
	if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)
		delta_package(p, p2);

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	return 0;
}

752 753 754 755 756 757 758
void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
{
	t->tsc = 0;
	t->aperf = 0;
	t->mperf = 0;
	t->c1 = 0;

759
	t->smi_count = 0;
760 761 762
	t->extra_delta32 = 0;
	t->extra_delta64 = 0;

763 764 765 766 767 768
	/* tells format_counters to dump all fields from this set */
	t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE;

	c->c3 = 0;
	c->c6 = 0;
	c->c7 = 0;
769
	c->core_temp_c = 0;
770 771 772 773 774

	p->pc2 = 0;
	p->pc3 = 0;
	p->pc6 = 0;
	p->pc7 = 0;
775 776 777
	p->pc8 = 0;
	p->pc9 = 0;
	p->pc10 = 0;
778 779 780 781 782 783 784 785

	p->energy_pkg = 0;
	p->energy_dram = 0;
	p->energy_cores = 0;
	p->energy_gfx = 0;
	p->rapl_pkg_perf_status = 0;
	p->rapl_dram_perf_status = 0;
	p->pkg_temp_c = 0;
786 787 788
}
int sum_counters(struct thread_data *t, struct core_data *c,
	struct pkg_data *p)
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{
790 791 792 793
	average.threads.tsc += t->tsc;
	average.threads.aperf += t->aperf;
	average.threads.mperf += t->mperf;
	average.threads.c1 += t->c1;
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795 796 797
	average.threads.extra_delta32 += t->extra_delta32;
	average.threads.extra_delta64 += t->extra_delta64;

798 799 800
	/* sum per-core values only for 1st thread in core */
	if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
		return 0;
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802 803 804 805
	average.cores.c3 += c->c3;
	average.cores.c6 += c->c6;
	average.cores.c7 += c->c7;

806 807
	average.cores.core_temp_c = MAX(average.cores.core_temp_c, c->core_temp_c);

808 809 810 811 812 813 814 815
	/* sum per-pkg values only for 1st core in pkg */
	if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
		return 0;

	average.packages.pc2 += p->pc2;
	average.packages.pc3 += p->pc3;
	average.packages.pc6 += p->pc6;
	average.packages.pc7 += p->pc7;
816 817 818
	average.packages.pc8 += p->pc8;
	average.packages.pc9 += p->pc9;
	average.packages.pc10 += p->pc10;
819

820 821 822 823 824 825 826 827 828
	average.packages.energy_pkg += p->energy_pkg;
	average.packages.energy_dram += p->energy_dram;
	average.packages.energy_cores += p->energy_cores;
	average.packages.energy_gfx += p->energy_gfx;

	average.packages.pkg_temp_c = MAX(average.packages.pkg_temp_c, p->pkg_temp_c);

	average.packages.rapl_pkg_perf_status += p->rapl_pkg_perf_status;
	average.packages.rapl_dram_perf_status += p->rapl_dram_perf_status;
829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846
	return 0;
}
/*
 * sum the counters for all cpus in the system
 * compute the weighted average
 */
void compute_average(struct thread_data *t, struct core_data *c,
	struct pkg_data *p)
{
	clear_counters(&average.threads, &average.cores, &average.packages);

	for_all_cpus(sum_counters, t, c, p);

	average.threads.tsc /= topo.num_cpus;
	average.threads.aperf /= topo.num_cpus;
	average.threads.mperf /= topo.num_cpus;
	average.threads.c1 /= topo.num_cpus;

847 848 849 850 851
	average.threads.extra_delta32 /= topo.num_cpus;
	average.threads.extra_delta32 &= 0xFFFFFFFF;

	average.threads.extra_delta64 /= topo.num_cpus;

852 853 854 855 856 857 858 859
	average.cores.c3 /= topo.num_cores;
	average.cores.c6 /= topo.num_cores;
	average.cores.c7 /= topo.num_cores;

	average.packages.pc2 /= topo.num_packages;
	average.packages.pc3 /= topo.num_packages;
	average.packages.pc6 /= topo.num_packages;
	average.packages.pc7 /= topo.num_packages;
860 861 862 863

	average.packages.pc8 /= topo.num_packages;
	average.packages.pc9 /= topo.num_packages;
	average.packages.pc10 /= topo.num_packages;
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}

866
static unsigned long long rdtsc(void)
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{
868
	unsigned int low, high;
869

870
	asm volatile("rdtsc" : "=a" (low), "=d" (high));
871

872 873
	return low | ((unsigned long long)high) << 32;
}
874 875


876 877 878 879 880 881 882 883
/*
 * get_counters(...)
 * migrate to cpu
 * acquire and record local counters for that cpu
 */
int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
{
	int cpu = t->cpu_id;
884
	unsigned long long msr;
885

886 887
	if (cpu_migrate(cpu)) {
		fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
888
		return -1;
889
	}
890

891 892 893
	t->tsc = rdtsc();	/* we are running on local CPU of interest */

	if (has_aperf) {
894
		if (get_msr(cpu, MSR_IA32_APERF, &t->aperf))
895
			return -3;
896
		if (get_msr(cpu, MSR_IA32_MPERF, &t->mperf))
897 898 899
			return -4;
	}

900 901 902 903 904
	if (do_smi) {
		if (get_msr(cpu, MSR_SMI_COUNT, &msr))
			return -5;
		t->smi_count = msr & 0xFFFFFFFF;
	}
905
	if (extra_delta_offset32) {
906
		if (get_msr(cpu, extra_delta_offset32, &msr))
907
			return -5;
908
		t->extra_delta32 = msr & 0xFFFFFFFF;
909 910 911 912
	}

	if (extra_delta_offset64)
		if (get_msr(cpu, extra_delta_offset64, &t->extra_delta64))
913 914
			return -5;

915
	if (extra_msr_offset32) {
916
		if (get_msr(cpu, extra_msr_offset32, &msr))
917
			return -5;
918
		t->extra_msr32 = msr & 0xFFFFFFFF;
919 920
	}

921 922
	if (extra_msr_offset64)
		if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64))
923 924
			return -5;

925 926 927 928 929
	if (use_c1_residency_msr) {
		if (get_msr(cpu, MSR_CORE_C1_RES, &t->c1))
			return -6;
	}

930 931 932 933
	/* collect core counters only for 1st thread in core */
	if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
		return 0;

934
	if (do_nhm_cstates && !do_slm_cstates) {
935 936
		if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3))
			return -6;
937 938 939
	}

	if (do_nhm_cstates) {
940 941 942 943 944 945 946 947
		if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6))
			return -7;
	}

	if (do_snb_cstates)
		if (get_msr(cpu, MSR_CORE_C7_RESIDENCY, &c->c7))
			return -8;

948 949 950 951 952 953 954
	if (do_dts) {
		if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
			return -9;
		c->core_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
	}


955 956 957 958
	/* collect package counters only for 1st core in package */
	if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
		return 0;

959
	if (do_nhm_cstates && !do_slm_cstates) {
960 961 962 963 964 965 966 967 968 969
		if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3))
			return -9;
		if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6))
			return -10;
	}
	if (do_snb_cstates) {
		if (get_msr(cpu, MSR_PKG_C2_RESIDENCY, &p->pc2))
			return -11;
		if (get_msr(cpu, MSR_PKG_C7_RESIDENCY, &p->pc7))
			return -12;
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	}
971 972 973 974 975 976 977 978
	if (do_c8_c9_c10) {
		if (get_msr(cpu, MSR_PKG_C8_RESIDENCY, &p->pc8))
			return -13;
		if (get_msr(cpu, MSR_PKG_C9_RESIDENCY, &p->pc9))
			return -13;
		if (get_msr(cpu, MSR_PKG_C10_RESIDENCY, &p->pc10))
			return -13;
	}
979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013
	if (do_rapl & RAPL_PKG) {
		if (get_msr(cpu, MSR_PKG_ENERGY_STATUS, &msr))
			return -13;
		p->energy_pkg = msr & 0xFFFFFFFF;
	}
	if (do_rapl & RAPL_CORES) {
		if (get_msr(cpu, MSR_PP0_ENERGY_STATUS, &msr))
			return -14;
		p->energy_cores = msr & 0xFFFFFFFF;
	}
	if (do_rapl & RAPL_DRAM) {
		if (get_msr(cpu, MSR_DRAM_ENERGY_STATUS, &msr))
			return -15;
		p->energy_dram = msr & 0xFFFFFFFF;
	}
	if (do_rapl & RAPL_GFX) {
		if (get_msr(cpu, MSR_PP1_ENERGY_STATUS, &msr))
			return -16;
		p->energy_gfx = msr & 0xFFFFFFFF;
	}
	if (do_rapl & RAPL_PKG_PERF_STATUS) {
		if (get_msr(cpu, MSR_PKG_PERF_STATUS, &msr))
			return -16;
		p->rapl_pkg_perf_status = msr & 0xFFFFFFFF;
	}
	if (do_rapl & RAPL_DRAM_PERF_STATUS) {
		if (get_msr(cpu, MSR_DRAM_PERF_STATUS, &msr))
			return -16;
		p->rapl_dram_perf_status = msr & 0xFFFFFFFF;
	}
	if (do_ptm) {
		if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
			return -17;
		p->pkg_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
	}
1014
	return 0;
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}

1017
void print_verbose_header(void)
L
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1018 1019 1020 1021 1022 1023 1024
{
	unsigned long long msr;
	unsigned int ratio;

	if (!do_nehalem_platform_info)
		return;

1025
	get_msr(0, MSR_NHM_PLATFORM_INFO, &msr);
L
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1026

1027
	fprintf(stderr, "cpu0: MSR_NHM_PLATFORM_INFO: 0x%08llx\n", msr);
1028

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1029 1030 1031 1032 1033 1034 1035 1036
	ratio = (msr >> 40) & 0xFF;
	fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency\n",
		ratio, bclk, ratio * bclk);

	ratio = (msr >> 8) & 0xFF;
	fprintf(stderr, "%d * %.0f = %.0f MHz TSC frequency\n",
		ratio, bclk, ratio * bclk);

1037
	get_msr(0, MSR_IA32_POWER_CTL, &msr);
1038
	fprintf(stderr, "cpu0: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n",
1039 1040
		msr, msr & 0x2 ? "EN" : "DIS");

1041 1042 1043 1044 1045
	if (!do_ivt_turbo_ratio_limit)
		goto print_nhm_turbo_ratio_limits;

	get_msr(0, MSR_IVT_TURBO_RATIO_LIMIT, &msr);

1046
	fprintf(stderr, "cpu0: MSR_IVT_TURBO_RATIO_LIMIT: 0x%08llx\n", msr);
1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088

	ratio = (msr >> 56) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 16 active cores\n",
			ratio, bclk, ratio * bclk);

	ratio = (msr >> 48) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 15 active cores\n",
			ratio, bclk, ratio * bclk);

	ratio = (msr >> 40) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 14 active cores\n",
			ratio, bclk, ratio * bclk);

	ratio = (msr >> 32) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 13 active cores\n",
			ratio, bclk, ratio * bclk);

	ratio = (msr >> 24) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 12 active cores\n",
			ratio, bclk, ratio * bclk);

	ratio = (msr >> 16) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 11 active cores\n",
			ratio, bclk, ratio * bclk);

	ratio = (msr >> 8) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 10 active cores\n",
			ratio, bclk, ratio * bclk);

	ratio = (msr >> 0) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n",
			ratio, bclk, ratio * bclk);

print_nhm_turbo_ratio_limits:
1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106
	get_msr(0, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);

#define SNB_C1_AUTO_UNDEMOTE              (1UL << 27)
#define SNB_C3_AUTO_UNDEMOTE              (1UL << 28)

	fprintf(stderr, "cpu0: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", msr);

	fprintf(stderr, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: ",
		(msr & SNB_C3_AUTO_UNDEMOTE) ? "UNdemote-C3, " : "",
		(msr & SNB_C1_AUTO_UNDEMOTE) ? "UNdemote-C1, " : "",
		(msr & NHM_C3_AUTO_DEMOTE) ? "demote-C3, " : "",
		(msr & NHM_C1_AUTO_DEMOTE) ? "demote-C1, " : "",
		(msr & (1 << 15)) ? "" : "UN",
		(unsigned int)msr & 7);


	switch(msr & 0x7) {
	case 0:
1107
		fprintf(stderr, do_slm_cstates ? "no pkg states" : "pc0");
1108 1109
		break;
	case 1:
1110
		fprintf(stderr, do_slm_cstates ? "no pkg states" : do_snb_cstates ? "pc2" : "pc0");
1111 1112
		break;
	case 2:
1113
		fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc6-noret" : "pc3");
1114 1115
		break;
	case 3:
1116
		fprintf(stderr, do_slm_cstates ? "invalid" : "pc6");
1117 1118
		break;
	case 4:
1119
		fprintf(stderr, do_slm_cstates ? "pc4" : "pc7");
1120 1121
		break;
	case 5:
1122 1123 1124 1125
		fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc7s" : "invalid");
		break;
	case 6:
		fprintf(stderr, do_slm_cstates ? "pc6" : "invalid");
1126 1127
		break;
	case 7:
1128
		fprintf(stderr, do_slm_cstates ? "pc7" : "unlimited");
1129 1130 1131 1132 1133
		break;
	default:
		fprintf(stderr, "invalid");
	}
	fprintf(stderr, ")\n");
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1134 1135 1136 1137

	if (!do_nehalem_turbo_ratio_limit)
		return;

1138
	get_msr(0, MSR_NHM_TURBO_RATIO_LIMIT, &msr);
L
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1139

1140
	fprintf(stderr, "cpu0: MSR_NHM_TURBO_RATIO_LIMIT: 0x%08llx\n", msr);
1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161

	ratio = (msr >> 56) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 8 active cores\n",
			ratio, bclk, ratio * bclk);

	ratio = (msr >> 48) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 7 active cores\n",
			ratio, bclk, ratio * bclk);

	ratio = (msr >> 40) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 6 active cores\n",
			ratio, bclk, ratio * bclk);

	ratio = (msr >> 32) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 5 active cores\n",
			ratio, bclk, ratio * bclk);

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1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182
	ratio = (msr >> 24) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n",
			ratio, bclk, ratio * bclk);

	ratio = (msr >> 16) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 3 active cores\n",
			ratio, bclk, ratio * bclk);

	ratio = (msr >> 8) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 2 active cores\n",
			ratio, bclk, ratio * bclk);

	ratio = (msr >> 0) & 0xFF;
	if (ratio)
		fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n",
			ratio, bclk, ratio * bclk);
}

1183
void free_all_buffers(void)
L
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1184
{
1185 1186 1187
	CPU_FREE(cpu_present_set);
	cpu_present_set = NULL;
	cpu_present_set = 0;
L
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1188

1189 1190 1191
	CPU_FREE(cpu_affinity_set);
	cpu_affinity_set = NULL;
	cpu_affinity_setsize = 0;
L
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1192

1193 1194 1195
	free(thread_even);
	free(core_even);
	free(package_even);
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1196

1197 1198 1199
	thread_even = NULL;
	core_even = NULL;
	package_even = NULL;
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1200

1201 1202 1203
	free(thread_odd);
	free(core_odd);
	free(package_odd);
L
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1204

1205 1206 1207
	thread_odd = NULL;
	core_odd = NULL;
	package_odd = NULL;
L
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1208

1209 1210 1211
	free(output_buffer);
	output_buffer = NULL;
	outp = NULL;
L
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1212 1213
}

1214 1215 1216 1217 1218 1219
/*
 * Open a file, and exit on failure
 */
FILE *fopen_or_die(const char *path, const char *mode)
{
	FILE *filep = fopen(path, "r");
1220 1221
	if (!filep)
		err(1, "%s: open failed", path);
1222 1223 1224
	return filep;
}

1225
/*
1226
 * Parse a file containing a single int.
1227
 */
1228
int parse_int_file(const char *fmt, ...)
L
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1229
{
1230 1231
	va_list args;
	char path[PATH_MAX];
1232
	FILE *filep;
1233
	int value;
L
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1234

1235 1236 1237
	va_start(args, fmt);
	vsnprintf(path, sizeof(path), fmt, args);
	va_end(args);
1238
	filep = fopen_or_die(path, "r");
1239 1240
	if (fscanf(filep, "%d", &value) != 1)
		err(1, "%s: failed to parse number from file", path);
1241
	fclose(filep);
1242 1243 1244 1245 1246 1247 1248 1249 1250 1251
	return value;
}

/*
 * cpu_is_first_sibling_in_core(cpu)
 * return 1 if given CPU is 1st HT sibling in the core
 */
int cpu_is_first_sibling_in_core(int cpu)
{
	return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu);
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1252 1253
}

1254 1255 1256 1257 1258
/*
 * cpu_is_first_core_in_package(cpu)
 * return 1 if given CPU is 1st core in package
 */
int cpu_is_first_core_in_package(int cpu)
L
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1259
{
1260
	return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu);
L
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1261 1262 1263 1264
}

int get_physical_package_id(int cpu)
{
1265
	return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu);
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1266 1267 1268 1269
}

int get_core_id(int cpu)
{
1270
	return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_id", cpu);
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1271 1272
}

1273 1274 1275 1276 1277 1278 1279 1280 1281
int get_num_ht_siblings(int cpu)
{
	char path[80];
	FILE *filep;
	int sib1, sib2;
	int matches;
	char character;

	sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu);
1282
	filep = fopen_or_die(path, "r");
1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297
	/*
	 * file format:
	 * if a pair of number with a character between: 2 siblings (eg. 1-2, or 1,4)
	 * otherwinse 1 sibling (self).
	 */
	matches = fscanf(filep, "%d%c%d\n", &sib1, &character, &sib2);

	fclose(filep);

	if (matches == 3)
		return 2;
	else
		return 1;
}

L
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1298
/*
1299 1300
 * run func(thread, core, package) in topology order
 * skip non-present cpus
L
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1301 1302
 */

1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346
int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *,
	struct pkg_data *, struct thread_data *, struct core_data *,
	struct pkg_data *), struct thread_data *thread_base,
	struct core_data *core_base, struct pkg_data *pkg_base,
	struct thread_data *thread_base2, struct core_data *core_base2,
	struct pkg_data *pkg_base2)
{
	int retval, pkg_no, core_no, thread_no;

	for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
		for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
			for (thread_no = 0; thread_no <
				topo.num_threads_per_core; ++thread_no) {
				struct thread_data *t, *t2;
				struct core_data *c, *c2;
				struct pkg_data *p, *p2;

				t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);

				if (cpu_is_not_present(t->cpu_id))
					continue;

				t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no);

				c = GET_CORE(core_base, core_no, pkg_no);
				c2 = GET_CORE(core_base2, core_no, pkg_no);

				p = GET_PKG(pkg_base, pkg_no);
				p2 = GET_PKG(pkg_base2, pkg_no);

				retval = func(t, c, p, t2, c2, p2);
				if (retval)
					return retval;
			}
		}
	}
	return 0;
}

/*
 * run func(cpu) on every cpu in /proc/stat
 * return max_cpu number
 */
int for_all_proc_cpus(int (func)(int))
L
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1347 1348
{
	FILE *fp;
1349
	int cpu_num;
L
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1350 1351
	int retval;

1352
	fp = fopen_or_die(proc_stat, "r");
L
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1353 1354

	retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n");
1355 1356
	if (retval != 0)
		err(1, "%s: failed to parse format", proc_stat);
L
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1357

1358 1359
	while (1) {
		retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num);
L
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1360 1361 1362
		if (retval != 1)
			break;

1363 1364 1365 1366 1367
		retval = func(cpu_num);
		if (retval) {
			fclose(fp);
			return(retval);
		}
L
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1368 1369
	}
	fclose(fp);
1370
	return 0;
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1371 1372 1373 1374
}

void re_initialize(void)
{
1375 1376 1377
	free_all_buffers();
	setup_all_buffers();
	printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus);
L
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1378 1379
}

1380

L
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1381
/*
1382 1383
 * count_cpus()
 * remember the last one seen, it will be the max
L
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1384
 */
1385
int count_cpus(int cpu)
L
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1386
{
1387 1388
	if (topo.max_cpu_num < cpu)
		topo.max_cpu_num = cpu;
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1389

1390 1391 1392 1393 1394 1395
	topo.num_cpus += 1;
	return 0;
}
int mark_cpu_present(int cpu)
{
	CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set);
1396
	return 0;
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1397 1398 1399 1400
}

void turbostat_loop()
{
1401
	int retval;
1402
	int restarted = 0;
1403

L
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1404
restart:
1405 1406
	restarted++;

1407
	retval = for_all_cpus(get_counters, EVEN_COUNTERS);
1408 1409 1410
	if (retval < -1) {
		exit(retval);
	} else if (retval == -1) {
1411 1412 1413
		if (restarted > 1) {
			exit(retval);
		}
1414 1415 1416
		re_initialize();
		goto restart;
	}
1417
	restarted = 0;
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1418 1419 1420
	gettimeofday(&tv_even, (struct timezone *)NULL);

	while (1) {
1421
		if (for_all_proc_cpus(cpu_is_not_present)) {
L
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1422 1423 1424 1425
			re_initialize();
			goto restart;
		}
		sleep(interval_sec);
1426
		retval = for_all_cpus(get_counters, ODD_COUNTERS);
1427 1428 1429
		if (retval < -1) {
			exit(retval);
		} else if (retval == -1) {
1430 1431 1432
			re_initialize();
			goto restart;
		}
L
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1433 1434
		gettimeofday(&tv_odd, (struct timezone *)NULL);
		timersub(&tv_odd, &tv_even, &tv_delta);
1435 1436 1437 1438
		for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
		compute_average(EVEN_COUNTERS);
		format_all_counters(EVEN_COUNTERS);
		flush_stdout();
1439
		sleep(interval_sec);
1440
		retval = for_all_cpus(get_counters, EVEN_COUNTERS);
1441 1442 1443
		if (retval < -1) {
			exit(retval);
		} else if (retval == -1) {
L
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1444 1445 1446 1447 1448
			re_initialize();
			goto restart;
		}
		gettimeofday(&tv_even, (struct timezone *)NULL);
		timersub(&tv_even, &tv_odd, &tv_delta);
1449 1450 1451 1452
		for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS);
		compute_average(ODD_COUNTERS);
		format_all_counters(ODD_COUNTERS);
		flush_stdout();
L
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1453 1454 1455 1456 1457 1458 1459
	}
}

void check_dev_msr()
{
	struct stat sb;

1460 1461 1462
	if (stat("/dev/cpu/0/msr", &sb))
		err(-5, "no /dev/cpu/0/msr\n"
		    "Try \"# modprobe msr\"");
L
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1463 1464 1465 1466
}

void check_super_user()
{
1467 1468
	if (getuid() != 0)
		errx(-6, "must be root");
L
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1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486
}

int has_nehalem_turbo_ratio_limit(unsigned int family, unsigned int model)
{
	if (!genuine_intel)
		return 0;

	if (family != 6)
		return 0;

	switch (model) {
	case 0x1A:	/* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */
	case 0x1E:	/* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */
	case 0x1F:	/* Core i7 and i5 Processor - Nehalem */
	case 0x25:	/* Westmere Client - Clarkdale, Arrandale */
	case 0x2C:	/* Westmere EP - Gulftown */
	case 0x2A:	/* SNB */
	case 0x2D:	/* SNB Xeon */
1487
	case 0x3A:	/* IVB */
1488
	case 0x3E:	/* IVB Xeon */
1489
	case 0x3C:	/* HSW */
L
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1490
	case 0x3F:	/* HSX */
1491
	case 0x45:	/* HSW */
1492
	case 0x46:	/* HSW */
1493 1494
	case 0x37:	/* BYT */
	case 0x4D:	/* AVN */
1495 1496 1497
	case 0x3D:	/* BDW */
	case 0x4F:	/* BDX */
	case 0x56:	/* BDX-DE */
L
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1498 1499 1500 1501 1502 1503 1504
		return 1;
	case 0x2E:	/* Nehalem-EX Xeon - Beckton */
	case 0x2F:	/* Westmere-EX Xeon - Eagleton */
	default:
		return 0;
	}
}
1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520
int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model)
{
	if (!genuine_intel)
		return 0;

	if (family != 6)
		return 0;

	switch (model) {
	case 0x3E:	/* IVB Xeon */
		return 1;
	default:
		return 0;
	}
}

1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569
/*
 * print_epb()
 * Decode the ENERGY_PERF_BIAS MSR
 */
int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p)
{
	unsigned long long msr;
	char *epb_string;
	int cpu;

	if (!has_epb)
		return 0;

	cpu = t->cpu_id;

	/* EPB is per-package */
	if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
		return 0;

	if (cpu_migrate(cpu)) {
		fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
		return -1;
	}

	if (get_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, &msr))
		return 0;

	switch (msr & 0x7) {
	case ENERGY_PERF_BIAS_PERFORMANCE:
		epb_string = "performance";
		break;
	case ENERGY_PERF_BIAS_NORMAL:
		epb_string = "balanced";
		break;
	case ENERGY_PERF_BIAS_POWERSAVE:
		epb_string = "powersave";
		break;
	default:
		epb_string = "custom";
		break;
	}
	fprintf(stderr, "cpu%d: MSR_IA32_ENERGY_PERF_BIAS: 0x%08llx (%s)\n", cpu, msr, epb_string);

	return 0;
}

#define	RAPL_POWER_GRANULARITY	0x7FFF	/* 15 bit power granularity */
#define	RAPL_TIME_GRANULARITY	0x3F /* 6 bit time granularity */

1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587
double get_tdp(model)
{
	unsigned long long msr;

	if (do_rapl & RAPL_PKG_POWER_INFO)
		if (!get_msr(0, MSR_PKG_POWER_INFO, &msr))
			return ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units;

	switch (model) {
	case 0x37:
	case 0x4D:
		return 30.0;
	default:
		return 135.0;
	}
}


1588 1589 1590
/*
 * rapl_probe()
 *
1591
 * sets do_rapl, rapl_power_units, rapl_energy_units, rapl_time_units
1592 1593 1594 1595
 */
void rapl_probe(unsigned int family, unsigned int model)
{
	unsigned long long msr;
1596
	unsigned int time_unit;
1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607
	double tdp;

	if (!genuine_intel)
		return;

	if (family != 6)
		return;

	switch (model) {
	case 0x2A:
	case 0x3A:
1608 1609
	case 0x3C:	/* HSW */
	case 0x45:	/* HSW */
1610
	case 0x46:	/* HSW */
1611
	case 0x3D:	/* BDW */
1612
		do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_GFX | RAPL_PKG_POWER_INFO;
1613
		break;
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1614
	case 0x3F:	/* HSX */
1615 1616
	case 0x4F:	/* BDX */
	case 0x56:	/* BDX-DE */
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1617 1618
		do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO;
		break;
1619 1620
	case 0x2D:
	case 0x3E:
1621 1622 1623 1624 1625
		do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_DRAM | RAPL_PKG_PERF_STATUS | RAPL_DRAM_PERF_STATUS | RAPL_PKG_POWER_INFO;
		break;
	case 0x37:	/* BYT */
	case 0x4D:	/* AVN */
		do_rapl = RAPL_PKG | RAPL_CORES ;
1626 1627 1628 1629 1630 1631 1632 1633 1634 1635
		break;
	default:
		return;
	}

	/* units on package 0, verify later other packages match */
	if (get_msr(0, MSR_RAPL_POWER_UNIT, &msr))
		return;

	rapl_power_units = 1.0 / (1 << (msr & 0xF));
1636 1637 1638 1639
	if (model == 0x37)
		rapl_energy_units = 1.0 * (1 << (msr >> 8 & 0x1F)) / 1000000;
	else
		rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F));
1640

1641 1642 1643
	time_unit = msr >> 16 & 0xF;
	if (time_unit == 0)
		time_unit = 0xA;
1644

1645
	rapl_time_units = 1.0 / (1 << (time_unit));
1646

1647
	tdp = get_tdp(model);
1648

1649
	rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp;
1650
	if (verbose)
1651
		fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp);
1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756

	return;
}

int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p)
{
	unsigned long long msr;
	unsigned int dts;
	int cpu;

	if (!(do_dts || do_ptm))
		return 0;

	cpu = t->cpu_id;

	/* DTS is per-core, no need to print for each thread */
	if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) 
		return 0;

	if (cpu_migrate(cpu)) {
		fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
		return -1;
	}

	if (do_ptm && (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) {
		if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
			return 0;

		dts = (msr >> 16) & 0x7F;
		fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_STATUS: 0x%08llx (%d C)\n",
			cpu, msr, tcc_activation_temp - dts);

#ifdef	THERM_DEBUG
		if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &msr))
			return 0;

		dts = (msr >> 16) & 0x7F;
		dts2 = (msr >> 8) & 0x7F;
		fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
			cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
#endif
	}


	if (do_dts) {
		unsigned int resolution;

		if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
			return 0;

		dts = (msr >> 16) & 0x7F;
		resolution = (msr >> 27) & 0xF;
		fprintf(stderr, "cpu%d: MSR_IA32_THERM_STATUS: 0x%08llx (%d C +/- %d)\n",
			cpu, msr, tcc_activation_temp - dts, resolution);

#ifdef THERM_DEBUG
		if (get_msr(cpu, MSR_IA32_THERM_INTERRUPT, &msr))
			return 0;

		dts = (msr >> 16) & 0x7F;
		dts2 = (msr >> 8) & 0x7F;
		fprintf(stderr, "cpu%d: MSR_IA32_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
			cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
#endif
	}

	return 0;
}
	
void print_power_limit_msr(int cpu, unsigned long long msr, char *label)
{
	fprintf(stderr, "cpu%d: %s: %sabled (%f Watts, %f sec, clamp %sabled)\n",
		cpu, label,
		((msr >> 15) & 1) ? "EN" : "DIS",
		((msr >> 0) & 0x7FFF) * rapl_power_units,
		(1.0 + (((msr >> 22) & 0x3)/4.0)) * (1 << ((msr >> 17) & 0x1F)) * rapl_time_units,
		(((msr >> 16) & 1) ? "EN" : "DIS"));

	return;
}

int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
{
	unsigned long long msr;
	int cpu;

	if (!do_rapl)
		return 0;

	/* RAPL counters are per package, so print only for 1st thread/package */
	if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
		return 0;

	cpu = t->cpu_id;
	if (cpu_migrate(cpu)) {
		fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
		return -1;
	}

	if (get_msr(cpu, MSR_RAPL_POWER_UNIT, &msr))
		return -1;

	if (verbose) {
		fprintf(stderr, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx "
			"(%f Watts, %f Joules, %f sec.)\n", cpu, msr,
1757
			rapl_power_units, rapl_energy_units, rapl_time_units);
1758
	}
1759 1760
	if (do_rapl & RAPL_PKG_POWER_INFO) {

1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771
		if (get_msr(cpu, MSR_PKG_POWER_INFO, &msr))
                	return -5;


		fprintf(stderr, "cpu%d: MSR_PKG_POWER_INFO: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
			cpu, msr,
			((msr >>  0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
			((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
			((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
			((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);

1772 1773 1774
	}
	if (do_rapl & RAPL_PKG) {

1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809
		if (get_msr(cpu, MSR_PKG_POWER_LIMIT, &msr))
			return -9;

		fprintf(stderr, "cpu%d: MSR_PKG_POWER_LIMIT: 0x%08llx (%slocked)\n",
			cpu, msr, (msr >> 63) & 1 ? "": "UN");

		print_power_limit_msr(cpu, msr, "PKG Limit #1");
		fprintf(stderr, "cpu%d: PKG Limit #2: %sabled (%f Watts, %f* sec, clamp %sabled)\n",
			cpu,
			((msr >> 47) & 1) ? "EN" : "DIS",
			((msr >> 32) & 0x7FFF) * rapl_power_units,
			(1.0 + (((msr >> 54) & 0x3)/4.0)) * (1 << ((msr >> 49) & 0x1F)) * rapl_time_units,
			((msr >> 48) & 1) ? "EN" : "DIS");
	}

	if (do_rapl & RAPL_DRAM) {
		if (get_msr(cpu, MSR_DRAM_POWER_INFO, &msr))
                	return -6;


		fprintf(stderr, "cpu%d: MSR_DRAM_POWER_INFO,: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
			cpu, msr,
			((msr >>  0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
			((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
			((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
			((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);


		if (get_msr(cpu, MSR_DRAM_POWER_LIMIT, &msr))
			return -9;
		fprintf(stderr, "cpu%d: MSR_DRAM_POWER_LIMIT: 0x%08llx (%slocked)\n",
				cpu, msr, (msr >> 31) & 1 ? "": "UN");

		print_power_limit_msr(cpu, msr, "DRAM Limit");
	}
1810
	if (do_rapl & RAPL_CORE_POLICY) {
1811 1812 1813 1814 1815
		if (verbose) {
			if (get_msr(cpu, MSR_PP0_POLICY, &msr))
				return -7;

			fprintf(stderr, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF);
1816 1817 1818 1819
		}
	}
	if (do_rapl & RAPL_CORES) {
		if (verbose) {
1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844

			if (get_msr(cpu, MSR_PP0_POWER_LIMIT, &msr))
				return -9;
			fprintf(stderr, "cpu%d: MSR_PP0_POWER_LIMIT: 0x%08llx (%slocked)\n",
					cpu, msr, (msr >> 31) & 1 ? "": "UN");
			print_power_limit_msr(cpu, msr, "Cores Limit");
		}
	}
	if (do_rapl & RAPL_GFX) {
		if (verbose) {
			if (get_msr(cpu, MSR_PP1_POLICY, &msr))
				return -8;

			fprintf(stderr, "cpu%d: MSR_PP1_POLICY: %lld\n", cpu, msr & 0xF);

			if (get_msr(cpu, MSR_PP1_POWER_LIMIT, &msr))
				return -9;
			fprintf(stderr, "cpu%d: MSR_PP1_POWER_LIMIT: 0x%08llx (%slocked)\n",
					cpu, msr, (msr >> 31) & 1 ? "": "UN");
			print_power_limit_msr(cpu, msr, "GFX Limit");
		}
	}
	return 0;
}

L
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1845 1846 1847 1848 1849 1850 1851 1852 1853

int is_snb(unsigned int family, unsigned int model)
{
	if (!genuine_intel)
		return 0;

	switch (model) {
	case 0x2A:
	case 0x2D:
1854
	case 0x3A:	/* IVB */
1855
	case 0x3E:	/* IVB Xeon */
1856 1857 1858
	case 0x3C:	/* HSW */
	case 0x3F:	/* HSW */
	case 0x45:	/* HSW */
1859
	case 0x46:	/* HSW */
1860 1861 1862
	case 0x3D:	/* BDW */
	case 0x4F:	/* BDX */
	case 0x56:	/* BDX-DE */
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1863 1864 1865 1866 1867
		return 1;
	}
	return 0;
}

1868 1869 1870 1871 1872 1873
int has_c8_c9_c10(unsigned int family, unsigned int model)
{
	if (!genuine_intel)
		return 0;

	switch (model) {
1874 1875
	case 0x45:	/* HSW */
	case 0x3D:	/* BDW */
1876 1877 1878 1879 1880 1881
		return 1;
	}
	return 0;
}


1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917
int is_slm(unsigned int family, unsigned int model)
{
	if (!genuine_intel)
		return 0;
	switch (model) {
	case 0x37:	/* BYT */
	case 0x4D:	/* AVN */
		return 1;
	}
	return 0;
}

#define SLM_BCLK_FREQS 5
double slm_freq_table[SLM_BCLK_FREQS] = { 83.3, 100.0, 133.3, 116.7, 80.0};

double slm_bclk(void)
{
	unsigned long long msr = 3;
	unsigned int i;
	double freq;

	if (get_msr(0, MSR_FSB_FREQ, &msr))
		fprintf(stderr, "SLM BCLK: unknown\n");

	i = msr & 0xf;
	if (i >= SLM_BCLK_FREQS) {
		fprintf(stderr, "SLM BCLK[%d] invalid\n", i);
		msr = 3;
	}
	freq = slm_freq_table[i];

	fprintf(stderr, "SLM BCLK: %.1f Mhz\n", freq);

	return freq;
}

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1918 1919 1920 1921
double discover_bclk(unsigned int family, unsigned int model)
{
	if (is_snb(family, model))
		return 100.00;
1922 1923
	else if (is_slm(family, model))
		return slm_bclk();
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1924 1925 1926 1927
	else
		return 133.33;
}

1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979
/*
 * MSR_IA32_TEMPERATURE_TARGET indicates the temperature where
 * the Thermal Control Circuit (TCC) activates.
 * This is usually equal to tjMax.
 *
 * Older processors do not have this MSR, so there we guess,
 * but also allow cmdline over-ride with -T.
 *
 * Several MSR temperature values are in units of degrees-C
 * below this value, including the Digital Thermal Sensor (DTS),
 * Package Thermal Management Sensor (PTM), and thermal event thresholds.
 */
int set_temperature_target(struct thread_data *t, struct core_data *c, struct pkg_data *p)
{
	unsigned long long msr;
	unsigned int target_c_local;
	int cpu;

	/* tcc_activation_temp is used only for dts or ptm */
	if (!(do_dts || do_ptm))
		return 0;

	/* this is a per-package concept */
	if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
		return 0;

	cpu = t->cpu_id;
	if (cpu_migrate(cpu)) {
		fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
		return -1;
	}

	if (tcc_activation_temp_override != 0) {
		tcc_activation_temp = tcc_activation_temp_override;
		fprintf(stderr, "cpu%d: Using cmdline TCC Target (%d C)\n",
			cpu, tcc_activation_temp);
		return 0;
	}

	/* Temperature Target MSR is Nehalem and newer only */
	if (!do_nehalem_platform_info)
		goto guess;

	if (get_msr(0, MSR_IA32_TEMPERATURE_TARGET, &msr))
		goto guess;

	target_c_local = (msr >> 16) & 0x7F;

	if (verbose)
		fprintf(stderr, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n",
			cpu, msr, target_c_local);

1980
	if (target_c_local < 85 || target_c_local > 127)
1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993
		goto guess;

	tcc_activation_temp = target_c_local;

	return 0;

guess:
	tcc_activation_temp = TJMAX_DEFAULT;
	fprintf(stderr, "cpu%d: Guessing tjMax %d C, Please use -T to specify\n",
		cpu, tcc_activation_temp);

	return 0;
}
L
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1994 1995 1996 1997 1998 1999 2000
void check_cpuid()
{
	unsigned int eax, ebx, ecx, edx, max_level;
	unsigned int fms, family, model, stepping;

	eax = ebx = ecx = edx = 0;

2001
	__get_cpuid(0, &max_level, &ebx, &ecx, &edx);
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2002 2003 2004 2005 2006

	if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e)
		genuine_intel = 1;

	if (verbose)
2007
		fprintf(stderr, "CPUID(0): %.4s%.4s%.4s ",
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			(char *)&ebx, (char *)&edx, (char *)&ecx);

2010
	__get_cpuid(1, &fms, &ebx, &ecx, &edx);
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2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
	family = (fms >> 8) & 0xf;
	model = (fms >> 4) & 0xf;
	stepping = fms & 0xf;
	if (family == 6 || family == 0xf)
		model += ((fms >> 16) & 0xf) << 4;

	if (verbose)
		fprintf(stderr, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n",
			max_level, family, model, stepping, family, model, stepping);

2021 2022
	if (!(edx & (1 << 5)))
		errx(1, "CPUID: no MSR");
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2023 2024 2025 2026 2027 2028 2029

	/*
	 * check max extended function levels of CPUID.
	 * This is needed to check for invariant TSC.
	 * This check is valid for both Intel and AMD.
	 */
	ebx = ecx = edx = 0;
2030
	__get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx);
L
Len Brown 已提交
2031

2032 2033
	if (max_level < 0x80000007)
		errx(1, "CPUID: no invariant TSC (max_level 0x%x)", max_level);
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2034 2035 2036 2037 2038

	/*
	 * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8
	 * this check is valid for both Intel and AMD
	 */
2039
	__get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx);
2040
	has_invariant_tsc = edx & (1 << 8);
L
Len Brown 已提交
2041

2042 2043
	if (!has_invariant_tsc)
		errx(1, "No invariant TSC");
L
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2044 2045 2046 2047 2048 2049

	/*
	 * APERF/MPERF is advertised by CPUID.EAX=0x6: ECX.bit0
	 * this check is valid for both Intel and AMD
	 */

2050
	__get_cpuid(0x6, &eax, &ebx, &ecx, &edx);
2051
	has_aperf = ecx & (1 << 0);
2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063
	do_dts = eax & (1 << 0);
	do_ptm = eax & (1 << 6);
	has_epb = ecx & (1 << 3);

	if (verbose)
		fprintf(stderr, "CPUID(6): %s%s%s%s\n",
			has_aperf ? "APERF" : "No APERF!",
			do_dts ? ", DTS" : "",
			do_ptm ? ", PTM": "",
			has_epb ? ", EPB": "");

	if (!has_aperf)
2064
		errx(-1, "No APERF");
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Len Brown 已提交
2065 2066 2067

	do_nehalem_platform_info = genuine_intel && has_invariant_tsc;
	do_nhm_cstates = genuine_intel;	/* all Intel w/ non-stop TSC have NHM counters */
2068
	do_smi = do_nhm_cstates;
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Len Brown 已提交
2069
	do_snb_cstates = is_snb(family, model);
2070
	do_c8_c9_c10 = has_c8_c9_c10(family, model);
2071
	do_slm_cstates = is_slm(family, model);
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2072 2073 2074
	bclk = discover_bclk(family, model);

	do_nehalem_turbo_ratio_limit = has_nehalem_turbo_ratio_limit(family, model);
2075
	do_ivt_turbo_ratio_limit = has_ivt_turbo_ratio_limit(family, model);
2076 2077 2078
	rapl_probe(family, model);

	return;
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2079 2080 2081 2082 2083
}


void usage()
{
2084
	errx(1, "%s: [-v][-R][-T][-p|-P|-S][-c MSR#][-C MSR#][-m MSR#][-M MSR#][-i interval_sec | command ...]\n",
2085
	     progname);
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2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105
}


/*
 * in /dev/cpu/ return success for names that are numbers
 * ie. filter out ".", "..", "microcode".
 */
int dir_filter(const struct dirent *dirp)
{
	if (isdigit(dirp->d_name[0]))
		return 1;
	else
		return 0;
}

int open_dev_cpu_msr(int dummy1)
{
	return 0;
}

2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127
void topology_probe()
{
	int i;
	int max_core_id = 0;
	int max_package_id = 0;
	int max_siblings = 0;
	struct cpu_topology {
		int core_id;
		int physical_package_id;
	} *cpus;

	/* Initialize num_cpus, max_cpu_num */
	topo.num_cpus = 0;
	topo.max_cpu_num = 0;
	for_all_proc_cpus(count_cpus);
	if (!summary_only && topo.num_cpus > 1)
		show_cpu = 1;

	if (verbose > 1)
		fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num);

	cpus = calloc(1, (topo.max_cpu_num  + 1) * sizeof(struct cpu_topology));
2128 2129
	if (cpus == NULL)
		err(1, "calloc cpus");
2130 2131 2132 2133 2134

	/*
	 * Allocate and initialize cpu_present_set
	 */
	cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1));
2135 2136
	if (cpu_present_set == NULL)
		err(3, "CPU_ALLOC");
2137 2138 2139 2140 2141 2142 2143 2144
	cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
	CPU_ZERO_S(cpu_present_setsize, cpu_present_set);
	for_all_proc_cpus(mark_cpu_present);

	/*
	 * Allocate and initialize cpu_affinity_set
	 */
	cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1));
2145 2146
	if (cpu_affinity_set == NULL)
		err(3, "CPU_ALLOC");
2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229
	cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
	CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);


	/*
	 * For online cpus
	 * find max_core_id, max_package_id
	 */
	for (i = 0; i <= topo.max_cpu_num; ++i) {
		int siblings;

		if (cpu_is_not_present(i)) {
			if (verbose > 1)
				fprintf(stderr, "cpu%d NOT PRESENT\n", i);
			continue;
		}
		cpus[i].core_id = get_core_id(i);
		if (cpus[i].core_id > max_core_id)
			max_core_id = cpus[i].core_id;

		cpus[i].physical_package_id = get_physical_package_id(i);
		if (cpus[i].physical_package_id > max_package_id)
			max_package_id = cpus[i].physical_package_id;

		siblings = get_num_ht_siblings(i);
		if (siblings > max_siblings)
			max_siblings = siblings;
		if (verbose > 1)
			fprintf(stderr, "cpu %d pkg %d core %d\n",
				i, cpus[i].physical_package_id, cpus[i].core_id);
	}
	topo.num_cores_per_pkg = max_core_id + 1;
	if (verbose > 1)
		fprintf(stderr, "max_core_id %d, sizing for %d cores per package\n",
			max_core_id, topo.num_cores_per_pkg);
	if (!summary_only && topo.num_cores_per_pkg > 1)
		show_core = 1;

	topo.num_packages = max_package_id + 1;
	if (verbose > 1)
		fprintf(stderr, "max_package_id %d, sizing for %d packages\n",
			max_package_id, topo.num_packages);
	if (!summary_only && topo.num_packages > 1)
		show_pkg = 1;

	topo.num_threads_per_core = max_siblings;
	if (verbose > 1)
		fprintf(stderr, "max_siblings %d\n", max_siblings);

	free(cpus);
}

void
allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p)
{
	int i;

	*t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg *
		topo.num_packages, sizeof(struct thread_data));
	if (*t == NULL)
		goto error;

	for (i = 0; i < topo.num_threads_per_core *
		topo.num_cores_per_pkg * topo.num_packages; i++)
		(*t)[i].cpu_id = -1;

	*c = calloc(topo.num_cores_per_pkg * topo.num_packages,
		sizeof(struct core_data));
	if (*c == NULL)
		goto error;

	for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++)
		(*c)[i].core_id = -1;

	*p = calloc(topo.num_packages, sizeof(struct pkg_data));
	if (*p == NULL)
		goto error;

	for (i = 0; i < topo.num_packages; i++)
		(*p)[i].package_id = i;

	return;
error:
2230
	err(1, "calloc counters");
2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284
}
/*
 * init_counter()
 *
 * set cpu_id, core_num, pkg_num
 * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE
 *
 * increment topo.num_cores when 1st core in pkg seen
 */
void init_counter(struct thread_data *thread_base, struct core_data *core_base,
	struct pkg_data *pkg_base, int thread_num, int core_num,
	int pkg_num, int cpu_id)
{
	struct thread_data *t;
	struct core_data *c;
	struct pkg_data *p;

	t = GET_THREAD(thread_base, thread_num, core_num, pkg_num);
	c = GET_CORE(core_base, core_num, pkg_num);
	p = GET_PKG(pkg_base, pkg_num);

	t->cpu_id = cpu_id;
	if (thread_num == 0) {
		t->flags |= CPU_IS_FIRST_THREAD_IN_CORE;
		if (cpu_is_first_core_in_package(cpu_id))
			t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE;
	}

	c->core_id = core_num;
	p->package_id = pkg_num;
}


int initialize_counters(int cpu_id)
{
	int my_thread_id, my_core_id, my_package_id;

	my_package_id = get_physical_package_id(cpu_id);
	my_core_id = get_core_id(cpu_id);

	if (cpu_is_first_sibling_in_core(cpu_id)) {
		my_thread_id = 0;
		topo.num_cores++;
	} else {
		my_thread_id = 1;
	}

	init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
	init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
	return 0;
}

void allocate_output_buffer()
{
2285
	output_buffer = calloc(1, (1 + topo.num_cpus) * 1024);
2286
	outp = output_buffer;
2287 2288
	if (outp == NULL)
		err(-1, "calloc output buffer");
2289 2290 2291 2292 2293 2294 2295 2296 2297 2298
}

void setup_all_buffers(void)
{
	topology_probe();
	allocate_counters(&thread_even, &core_even, &package_even);
	allocate_counters(&thread_odd, &core_odd, &package_odd);
	allocate_output_buffer();
	for_all_proc_cpus(initialize_counters);
}
2299

L
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2300 2301 2302 2303 2304 2305 2306
void turbostat_init()
{
	check_cpuid();

	check_dev_msr();
	check_super_user();

2307
	setup_all_buffers();
L
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2308 2309

	if (verbose)
2310
		print_verbose_header();
2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321

	if (verbose)
		for_all_cpus(print_epb, ODD_COUNTERS);

	if (verbose)
		for_all_cpus(print_rapl, ODD_COUNTERS);

	for_all_cpus(set_temperature_target, ODD_COUNTERS);

	if (verbose)
		for_all_cpus(print_thermal, ODD_COUNTERS);
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2322 2323 2324 2325 2326
}

int fork_it(char **argv)
{
	pid_t child_pid;
2327
	int status;
2328

2329 2330 2331
	status = for_all_cpus(get_counters, EVEN_COUNTERS);
	if (status)
		exit(status);
2332 2333
	/* clear affinity side-effect of get_counters() */
	sched_setaffinity(0, cpu_present_setsize, cpu_present_set);
L
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2334 2335 2336 2337 2338 2339 2340 2341 2342
	gettimeofday(&tv_even, (struct timezone *)NULL);

	child_pid = fork();
	if (!child_pid) {
		/* child */
		execvp(argv[0], argv);
	} else {

		/* parent */
2343 2344
		if (child_pid == -1)
			err(1, "fork");
L
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2345 2346 2347

		signal(SIGINT, SIG_IGN);
		signal(SIGQUIT, SIG_IGN);
2348 2349
		if (waitpid(child_pid, &status, 0) == -1)
			err(status, "waitpid");
L
Len Brown 已提交
2350
	}
2351 2352 2353 2354 2355
	/*
	 * n.b. fork_it() does not check for errors from for_all_cpus()
	 * because re-starting is problematic when forking
	 */
	for_all_cpus(get_counters, ODD_COUNTERS);
L
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2356 2357
	gettimeofday(&tv_odd, (struct timezone *)NULL);
	timersub(&tv_odd, &tv_even, &tv_delta);
2358 2359 2360 2361
	for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
	compute_average(EVEN_COUNTERS);
	format_all_counters(EVEN_COUNTERS);
	flush_stderr();
L
Len Brown 已提交
2362

2363
	fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0);
L
Len Brown 已提交
2364

2365
	return status;
L
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2366 2367
}

2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384
int get_and_dump_counters(void)
{
	int status;

	status = for_all_cpus(get_counters, ODD_COUNTERS);
	if (status)
		return status;

	status = for_all_cpus(dump_counters, ODD_COUNTERS);
	if (status)
		return status;

	flush_stdout();

	return status;
}

L
Len Brown 已提交
2385 2386 2387 2388 2389 2390
void cmdline(int argc, char **argv)
{
	int opt;

	progname = argv[0];

2391
	while ((opt = getopt(argc, argv, "+pPsSvi:c:C:m:M:RJT:")) != -1) {
L
Len Brown 已提交
2392
		switch (opt) {
2393
		case 'p':
2394 2395
			show_core_only++;
			break;
2396
		case 'P':
2397 2398
			show_pkg_only++;
			break;
2399 2400 2401
		case 's':
			dump_only++;
			break;
2402
		case 'S':
L
Len Brown 已提交
2403 2404
			summary_only++;
			break;
L
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2405 2406 2407 2408 2409 2410
		case 'v':
			verbose++;
			break;
		case 'i':
			interval_sec = atoi(optarg);
			break;
2411
		case 'c':
2412 2413
			sscanf(optarg, "%x", &extra_delta_offset32);
			break;
2414
		case 'C':
2415 2416
			sscanf(optarg, "%x", &extra_delta_offset64);
			break;
2417 2418 2419
		case 'm':
			sscanf(optarg, "%x", &extra_msr_offset32);
			break;
L
Len Brown 已提交
2420
		case 'M':
2421
			sscanf(optarg, "%x", &extra_msr_offset64);
L
Len Brown 已提交
2422
			break;
2423 2424 2425 2426 2427 2428
		case 'R':
			rapl_verbose++;
			break;
		case 'T':
			tcc_activation_temp_override = atoi(optarg);
			break;
2429 2430 2431 2432
		case 'J':
			rapl_joules++;
			break;

L
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2433 2434 2435 2436 2437 2438 2439 2440 2441 2442
		default:
			usage();
		}
	}
}

int main(int argc, char **argv)
{
	cmdline(argc, argv);

2443
	if (verbose)
2444
		fprintf(stderr, "turbostat v3.7 Feb 6, 2014"
L
Len Brown 已提交
2445 2446 2447 2448
			" - Len Brown <lenb@kernel.org>\n");

	turbostat_init();

2449 2450 2451 2452
	/* dump counters and exit */
	if (dump_only)
		return get_and_dump_counters();

L
Len Brown 已提交
2453 2454 2455 2456 2457 2458 2459 2460 2461 2462
	/*
	 * if any params left, it must be a command to fork
	 */
	if (argc - optind)
		return fork_it(argv + optind);
	else
		turbostat_loop();

	return 0;
}