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/*
* Copyright 2010, Intel Corporation
*
* 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:
* Arjan van de Ven <arjan@linux.intel.com>
*/
#ifndef __INCLUDE_GUARD_CPUDEV_H
#define __INCLUDE_GUARD_CPUDEV_H
#include <iostream>
#include <vector>
#include <string>
#include <stdint.h>
#include <sys/time.h>
using namespace std;
class abstract_cpu;
#define LEVEL_C0 -1
#define LEVEL_HEADER -2
#define PSTATE 1
#define CSTATE 2
struct idle_state {
char linux_name[16]; /* state0 etc.. cpuidle name */
char human_name[32];
uint64_t usage_before;
uint64_t usage_after;
uint64_t usage_delta;
uint64_t duration_before;
uint64_t duration_after;
uint64_t duration_delta;
int before_count;
int after_count;
int line_level;
};
struct frequency {
char human_name[32];
int line_level;
uint64_t freq;
uint64_t time_after;
uint64_t time_before;
int before_count;
int after_count;
double display_value;
};
class abstract_cpu
{
protected:
int first_cpu;
struct timeval stamp_before, stamp_after;
double time_factor;
uint64_t max_frequency;
uint64_t max_minus_one_frequency;
public:
uint64_t last_stamp;
uint64_t total_stamp;
int number;
int childcount;
bool idle, old_idle;
uint64_t current_frequency;
uint64_t effective_frequency;
vector<class abstract_cpu *> children;
vector<struct idle_state *> cstates;
vector<struct frequency *> pstates;
virtual ~abstract_cpu() {};
class abstract_cpu *parent;
void set_number(int _number, int cpu) {this->number = _number; this->first_cpu = cpu;};
virtual void measurement_start(void);
virtual void measurement_end(void);
virtual int can_collapse(void) { return 0;};
/* C state related methods */
void insert_cstate(const char *linux_name, const char *human_name, uint64_t usage, uint64_t duration, int count, int level = -1);
void update_cstate(const char *linux_name, const char *human_name, uint64_t usage, uint64_t duration, int count, int level = -1);
void finalize_cstate(const char *linux_name, uint64_t usage, uint64_t duration, int count);
virtual int has_cstate_level(int level);
virtual char * fill_cstate_line(int line_nr, char *buffer, const char *separator="") { return buffer;};
virtual char * fill_cstate_name(int line_nr, char *buffer) { return buffer;};
/* P state related methods */
void insert_pstate(uint64_t freq, const char *human_name, uint64_t duration, int count);
void update_pstate(uint64_t freq, const char *human_name, uint64_t duration, int count);
void finalize_pstate(uint64_t freq, uint64_t duration, int count);
virtual char * fill_pstate_line(int line_nr, char *buffer) { return buffer;};
virtual char * fill_pstate_name(int line_nr, char *buffer) { return buffer;};
virtual int has_pstate_level(int level);
virtual int has_pstates(void) { return 1; };
/* Frequency micro accounting methods */
virtual void calculate_freq(uint64_t time);
virtual void go_idle(uint64_t time) { idle = true; if (parent) parent->calculate_freq(time);};
virtual void go_unidle(uint64_t time) { idle = false; if (parent) parent->calculate_freq(time);};;
virtual void change_freq(uint64_t time, int freq) { current_frequency = freq; if (parent) parent->calculate_freq(time);};
virtual void change_effective_frequency(uint64_t time, uint64_t freq);
virtual void wiggle(void);
virtual uint64_t total_pstate_time(void);
virtual void validate(void);
virtual void reset_pstate_data(void);
};
extern vector<class abstract_cpu *> all_cpus;
class cpu_linux: public abstract_cpu
{
void account_freq(uint64_t frequency, uint64_t duration);
public:
virtual void measurement_start(void);
virtual void measurement_end(void);
virtual char * fill_cstate_line(int line_nr, char *buffer, const char *separator="");
virtual char * fill_cstate_name(int line_nr, char *buffer);
virtual char * fill_pstate_line(int line_nr, char *buffer);
virtual char * fill_pstate_name(int line_nr, char *buffer);
virtual void change_freq(uint64_t time, int freq);
virtual void change_effective_frequency(uint64_t time, uint64_t freq);
virtual void go_idle(uint64_t time);
virtual void go_unidle(uint64_t time);
};
class cpu_core: public abstract_cpu
{
void account_freq(uint64_t frequency, uint64_t duration);
public:
virtual char * fill_cstate_line(int line_nr, char *buffer, const char *separator="");
virtual char * fill_cstate_name(int line_nr, char *buffer);
virtual char * fill_pstate_line(int line_nr, char *buffer);
virtual char * fill_pstate_name(int line_nr, char *buffer);
virtual int can_collapse(void) { return childcount == 1;};
virtual void calculate_freq(uint64_t time);
virtual void change_effective_frequency(uint64_t time, uint64_t freq);
};
class cpu_package: public abstract_cpu
{
void account_freq(uint64_t frequency, uint64_t duration);
public:
virtual char * fill_cstate_line(int line_nr, char *buffer, const char *separator="");
virtual char * fill_cstate_name(int line_nr, char *buffer);
virtual char * fill_pstate_line(int line_nr, char *buffer);
virtual char * fill_pstate_name(int line_nr, char *buffer);
virtual int can_collapse(void) { return childcount == 1;};
virtual void calculate_freq(uint64_t time);
virtual void change_effective_frequency(uint64_t time, uint64_t freq);
};
#include "intel_cpus.h"
extern void enumerate_cpus(void);
extern void report_display_cpu_pstates(void);
extern void report_display_cpu_cstates(void);
extern void display_cpu_cstates(const char *start= "",
const char *end = "",
const char *linestart = "",
const char *separator = "| ",
const char *lineend = "\n");
extern void w_display_cpu_cstates(void);
extern void w_display_cpu_pstates(void);
extern void start_cpu_measurement(void);
extern void end_cpu_measurement(void);
extern void process_cpu_data(void);
extern void end_cpu_data(void);
extern void clear_cpu_data(void);
extern void clear_all_cpus(void);
#endif
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