@@ -32,7 +32,7 @@ powertop_SOURCES = parameters/persistent.cpp parameters/learn.cpp parameters/par
report/report-formatter-csv.cpp report/report-formatter-csv.h \
report/report-formatter-html.cpp report/report-formatter-html.h \
report/report-data-html.cpp report/report-data-html.h \
- main.cpp css.h powertop.css cpu/intel_gpu.cpp \
+ main.cpp css.h powertop.css cpu/intel_gpu.cpp devices/devfreq.cpp \
cpu/rapl/rapl_interface.cpp cpu/cpu_rapl_device.cpp cpu/rapl/rapl_interface.h\
cpu/dram_rapl_device.cpp devices/gpu_rapl_device.cpp cpu/cpu_rapl_device.h \
cpu/dram_rapl_device.h devices/gpu_rapl_device.h
new file mode 100644
@@ -0,0 +1,351 @@
+/*
+ * Copyright 2012, Linaro
+ *
+ * This file is part of PowerTOP
+ *
+ * This program file is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that 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 in a file named COPYING; if not, write to the
+ * Free Software Foundation, Inc,
+ * 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA
+ * or just google for it.
+ *
+ * Authors:
+ * Rajagopal Venkat <rajagopal.venkat@linaro.org>
+ */
+
+#include <iostream>
+#include <fstream>
+
+#include <dirent.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "device.h"
+#include "devfreq.h"
+#include "../display.h"
+#include "../cpu/cpu.h"
+#include "../report/report.h"
+#include "../report/report-maker.h"
+
+static bool is_enabled = true;
+
+static vector<class devfreq *> all_devfreq;
+
+devfreq::devfreq(const char* dpath): device()
+{
+ strncpy(dir_name, dpath, sizeof(dir_name));
+}
+
+uint64_t devfreq::parse_freq_time(char* pchr)
+{
+ char *cptr, *pptr = pchr;
+ uint64_t ctime;
+
+ cptr = strtok(pchr, " :");
+ while (cptr != NULL) {
+ cptr = strtok(NULL, " :");
+ if (cptr )
+ pptr = cptr;
+ }
+
+ ctime = strtoull(pptr, NULL, 10);
+ return ctime;
+}
+
+void devfreq::process_time_stamps()
+{
+ unsigned int i;
+ uint64_t active_time = 0;
+
+ sample_time = (1000000.0 * (stamp_after.tv_sec - stamp_before.tv_sec))
+ + ((stamp_after.tv_usec - stamp_before.tv_usec) );
+
+ for (i=0; i < dstates.size()-1; i++) {
+ struct frequency *state = dstates[i];
+ state->time_after = 1000 * (state->time_after - state->time_before);
+ active_time += state->time_after;
+ }
+ /* Compute idle time for the device */
+ dstates[i]->time_after = sample_time - active_time;
+}
+
+void devfreq::add_devfreq_freq_state(uint64_t freq, uint64_t time)
+{
+ struct frequency *state;
+
+ state = new(std::nothrow) struct frequency;
+ if (!state)
+ return;
+
+ memset(state, 0, sizeof(*state));
+ dstates.push_back(state);
+
+ state->freq = freq;
+ if (freq == 0)
+ strcpy(state->human_name, "Idle");
+ else
+ hz_to_human(freq, state->human_name);
+ state->time_before = time;
+}
+
+void devfreq::update_devfreq_freq_state(uint64_t freq, uint64_t time)
+{
+ unsigned int i;
+ struct frequency *state = NULL;
+
+ for(i=0; i < dstates.size(); i++) {
+ if (freq == dstates[i]->freq)
+ state = dstates[i];
+ }
+
+ if (state == NULL) {
+ add_devfreq_freq_state(freq, time);
+ return;
+ }
+
+ state->time_after = time;
+}
+
+void devfreq::parse_devfreq_trans_stat(char *dname)
+{
+ ifstream file;
+ char filename[256];
+
+ sprintf(filename, "/sys/class/devfreq/%s/trans_stat", dir_name);
+ file.open(filename);
+
+ if (!file)
+ return;
+
+ char line[1024];
+ char *c;
+
+ while (file) {
+ uint64_t freq;
+ uint64_t time;
+ char *pchr;
+
+ memset(line, 0, sizeof(line));
+ file.getline(line, sizeof(line));
+
+ pchr = strchr(line, '*');
+ pchr = (pchr != NULL) ? pchr+1 : line;
+
+ freq = strtoull(pchr, &c, 10);
+ if (!freq)
+ continue;
+
+ time = parse_freq_time(pchr);
+ update_devfreq_freq_state(freq, time);
+ }
+ file.close();
+}
+
+void devfreq::start_measurement(void)
+{
+ unsigned int i;
+ ifstream file;
+
+ for (i=0; i < dstates.size(); i++)
+ delete dstates[i];
+ dstates.resize(0);
+ sample_time = 0;
+
+ gettimeofday(&stamp_before, NULL);
+ parse_devfreq_trans_stat(dir_name);
+ /* add device idle state */
+ update_devfreq_freq_state(0, 0);
+}
+
+void devfreq::end_measurement(void)
+{
+ parse_devfreq_trans_stat(dir_name);
+ gettimeofday(&stamp_after, NULL);
+ process_time_stamps();
+}
+
+double devfreq::power_usage(struct result_bundle *result, struct parameter_bundle *bundle)
+{
+ return 0;
+}
+
+double devfreq::utilization(void)
+{
+ return 0;
+}
+
+void devfreq::fill_freq_utilization(unsigned int idx, char *buf)
+{
+ buf[0] = 0;
+
+ if (idx < dstates.size() && dstates[idx]) {
+ struct frequency *state = dstates[idx];
+ sprintf(buf, " %5.1f%% ", percentage(1.0 * state->time_after / sample_time));
+ }
+}
+
+void devfreq::fill_freq_name(unsigned int idx, char *buf)
+{
+ buf[0] = 0;
+
+ if (idx < dstates.size() && dstates[idx]) {
+ sprintf(buf, "%-15s", dstates[idx]->human_name);
+ }
+}
+
+void start_devfreq_measurement(void)
+{
+ unsigned int i;
+
+ for (i=0; i<all_devfreq.size(); i++)
+ all_devfreq[i]->start_measurement();
+}
+
+void end_devfreq_measurement(void)
+{
+ unsigned int i;
+
+ for (i=0; i<all_devfreq.size(); i++)
+ all_devfreq[i]->end_measurement();
+}
+
+static void devfreq_dev_callback(const char *d_name)
+{
+ devfreq *df = new(std::nothrow) class devfreq(d_name);
+ if (df)
+ all_devfreq.push_back(df);
+}
+
+void create_all_devfreq_devices(void)
+{
+ DIR *dir;
+ std::string p = "/sys/class/devfreq/";
+ dir = opendir(p.c_str());
+ if (dir == NULL) {
+ fprintf(stderr, "Devfreq not enabled\n");
+ is_enabled = false;
+ return;
+ }
+
+ callback fn = &devfreq_dev_callback;
+ process_directory(p.c_str(), fn);
+}
+
+void initialize_devfreq(void)
+{
+ if (is_enabled)
+ create_tab("Device Freq stats", _("Device Freq stats"));
+}
+
+void display_devfreq_devices(void)
+{
+ unsigned int i, j;
+ WINDOW *win;
+ char fline[1024];
+ char buf[128];
+
+ win = get_ncurses_win("Device Freq stats");
+ if (!win)
+ return;
+
+ wclear(win);
+ wmove(win, 2,0);
+
+ if (!is_enabled) {
+ wprintw(win, _(" Devfreq is not enabled"));
+ return;
+ }
+
+ if (!all_devfreq.size()) {
+ wprintw(win, _(" No devfreq devices available"));
+ return;
+ }
+
+ for (i=0; i<all_devfreq.size(); i++) {
+
+ class devfreq *df = all_devfreq[i];
+ wprintw(win, "\n%s\n", df->device_name());
+
+ for(j=0; j < df->dstates.size(); j++) {
+ memset(fline, 0, sizeof(fline));
+ strcpy(fline, "\t");
+ df->fill_freq_name(j, buf);
+ strcat(fline, buf);
+ df->fill_freq_utilization(j, buf);
+ strcat(fline, buf);
+ strcat(fline, "\n");
+ wprintw(win, fline);
+ }
+ wprintw(win, "\n");
+ }
+}
+
+void report_devfreq_devices(void)
+{
+ if (!is_enabled) {
+ return;
+ }
+
+/* todo: adapt to new report format */
+#if 0
+ char buffer[512];
+ unsigned int i, j;
+
+ report.begin_section(SECTION_DEVFREQ);
+ report.add_header("Device Frequency Report");
+
+ report.begin_table(TABLE_WIDE);
+ if (!all_devfreq.size()) {
+ report.begin_row();
+ report.add(" No devfreq devices available");
+ return;
+ }
+
+ for (i = 0; i < all_devfreq.size(); i++) {
+ buffer[0] = 0;
+ class devfreq *df = all_devfreq[i];
+
+ report.begin_row();
+ report.begin_cell(CELL_CPU_PSTATE_HEADER);
+ report.addf("%s", df->device_name());
+
+ for (j = 0; j < df->dstates.size(); j++) {
+ report.begin_row();
+ report.begin_cell(CELL_CPU_STATE_VALUE);
+ df->fill_freq_name(j, buffer);
+ report.add(buffer);
+ report.begin_cell(CELL_CPU_STATE_VALUE);
+ df->fill_freq_utilization(j, buffer);
+ report.add(buffer);
+ }
+ }
+#endif
+
+}
+
+void clear_all_devfreq()
+{
+ unsigned int i, j;
+
+ for (i=0; i < all_devfreq.size(); i++) {
+ class devfreq *df = all_devfreq[i];
+
+ for(j=0; j < df->dstates.size(); j++)
+ delete df->dstates[j];
+
+ df->dstates.resize(0);
+ delete df;
+ }
+ all_devfreq.clear();
+}
new file mode 100644
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2012, Linaro
+ *
+ * This file is part of PowerTOP
+ *
+ * This program file is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that 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 in a file named COPYING; if not, write to the
+ * Free Software Foundation, Inc,
+ * 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA
+ * or just google for it.
+ *
+ * Authors:
+ * Rajagopal Venkat <rajagopal.venkat@linaro.org>
+ */
+#ifndef _INCLUDE_GUARD_DEVFREQ_H
+#define _INCLUDE_GUARD_DEVFREQ_H
+
+#include "device.h"
+#include "../parameters/parameters.h"
+
+struct frequency;
+
+class devfreq: public device {
+ char dir_name[4096];
+ struct timeval stamp_before, stamp_after;
+ double sample_time;
+
+ uint64_t parse_freq_time(char *ptr);
+ void add_devfreq_freq_state(uint64_t freq, uint64_t time);
+ void update_devfreq_freq_state(uint64_t freq, uint64_t time);
+ void parse_devfreq_trans_stat(char *dname);
+ void process_time_stamps();
+
+public:
+
+ vector<struct frequency *> dstates;
+
+ devfreq(const char *c);
+ void fill_freq_utilization(unsigned int idx, char *buf);
+ void fill_freq_name(unsigned int idx, char *buf);
+
+ virtual void start_measurement(void);
+ virtual void end_measurement(void);
+
+ virtual double utilization(void); /* percentage */
+
+ virtual const char * class_name(void) { return "devfreq";};
+
+ virtual const char * device_name(void) { return dir_name;};
+ virtual const char * human_name(void) { return "devfreq";};
+ virtual double power_usage(struct result_bundle *result, struct parameter_bundle *bundle);
+ virtual const char * util_units(void) { return " rpm"; };
+ virtual int power_valid(void) { return 0; /*utilization_power_valid(r_index);*/};
+ virtual int grouping_prio(void) { return 1; };
+};
+
+extern void create_all_devfreq_devices(void);
+extern void clear_all_devfreq(void);
+extern void display_devfreq_devices(void);
+extern void report_devfreq_devices(void);
+extern void initialize_devfreq(void);
+extern void start_devfreq_measurement(void);
+extern void end_devfreq_measurement(void);
+
+#endif
@@ -48,6 +48,7 @@
#include "devices/device.h"
+#include "devices/devfreq.h"
#include "devices/usb.h"
#include "devices/ahci.h"
#include "measurement/measurement.h"
@@ -194,6 +195,7 @@ void one_measurement(int seconds, char *workload)
create_all_usb_devices();
start_power_measurement();
devices_start_measurement();
+ start_devfreq_measurement();
start_process_measurement();
start_cpu_measurement();
@@ -206,6 +208,7 @@ void one_measurement(int seconds, char *workload)
end_cpu_measurement();
end_process_measurement();
collect_open_devices();
+ end_devfreq_measurement();
devices_end_measurement();
end_power_measurement();
@@ -233,6 +236,9 @@ void one_measurement(int seconds, char *workload)
report_show_open_devices();
report_devices();
+ display_devfreq_devices();
+ report_devfreq_devices();
+
ahci_create_device_stats_table();
store_results(measurement_time);
end_cpu_data();
@@ -344,6 +350,7 @@ static void powertop_init(void)
enumerate_cpus();
create_all_devices();
+ create_all_devfreq_devices();
detect_power_meters();
register_parameter("base power", 100, 0.5);
@@ -457,6 +464,7 @@ int main(int argc, char **argv)
exit(0);
}
init_display();
+ initialize_devfreq();
initialize_tuning();
/* first one is short to not let the user wait too long */
one_measurement(1, NULL);
@@ -491,6 +499,7 @@ int main(int argc, char **argv)
clean_open_devices();
clear_all_devices();
+ clear_all_devfreq();
clear_all_cpus();
return 0;
@@ -89,6 +89,7 @@ enum section_type {
SECTION_SYSINFO,
SECTION_CPUIDLE,
SECTION_CPUFREQ,
+ SECTION_DEVFREQ,
SECTION_DEVPOWER,
SECTION_SOFTWARE,
SECTION_SUMMARY,