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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>
*/
#include <stdio.h>
#include "cpu.h"
#include "../lib.h"
#include "../parameters/parameters.h"
static int is_turbo(uint64_t freq, uint64_t max, uint64_t maxmo)
{
if (freq != max)
return 0;
if (maxmo + 1000 != max)
return 0;
return 1;
}
char * cpu_core::fill_cstate_line(int line_nr, char *buffer, const char *separator)
{
unsigned int i;
buffer[0] = 0;
if (line_nr == LEVEL_HEADER) {
sprintf(buffer,_(" Core"));
return buffer;
}
for (i = 0; i < cstates.size(); i++) {
if (cstates[i]->line_level != line_nr)
continue;
sprintf(buffer,"%5.1f%%", percentage(cstates[i]->duration_delta / time_factor));
}
return buffer;
}
char * cpu_core::fill_cstate_name(int line_nr, char *buffer)
{
unsigned int i;
buffer[0] = 0;
for (i = 0; i < cstates.size(); i++) {
if (cstates[i]->line_level != line_nr)
continue;
sprintf(buffer,"%s", cstates[i]->human_name);
}
return buffer;
}
char * cpu_core::fill_pstate_name(int line_nr, char *buffer)
{
buffer[0] = 0;
if (line_nr >= (int)pstates.size() || line_nr < 0)
return buffer;
sprintf(buffer,"%s", pstates[line_nr]->human_name);
return buffer;
}
void cpu_core::account_freq(uint64_t freq, uint64_t duration)
{
struct frequency *state = NULL;
unsigned int i;
for (i = 0; i < pstates.size(); i++) {
if (freq == pstates[i]->freq) {
state = pstates[i];
break;
}
}
if (!state) {
state = new(std::nothrow) struct frequency;
if (!state)
return;
memset(state, 0, sizeof(*state));
pstates.push_back(state);
state->freq = freq;
hz_to_human(freq, state->human_name);
if (freq == 0)
strcpy(state->human_name, _("Idle"));
if (is_turbo(freq, max_frequency, max_minus_one_frequency))
sprintf(state->human_name, _("Turbo Mode"));
state->after_count = 1;
}
state->time_after += duration;
}
void cpu_core::calculate_freq(uint64_t time)
{
uint64_t freq = 0;
bool is_idle = true;
unsigned int i;
/* calculate the maximum frequency of all children */
for (i = 0; i < children.size(); i++)
if (children[i] && children[i]->has_pstates()) {
uint64_t f = 0;
if (!children[i]->idle) {
f = children[i]->current_frequency;
is_idle = false;
}
if (f > freq)
freq = f;
}
current_frequency = freq;
idle = is_idle;
if (parent)
parent->calculate_freq(time);
old_idle = idle;
}
void cpu_core::change_effective_frequency(uint64_t time, uint64_t frequency)
{
uint64_t freq = 0;
uint64_t time_delta, fr;
if (last_stamp)
time_delta = time - last_stamp;
else
time_delta = 1;
fr = effective_frequency;
if (old_idle)
fr = 0;
account_freq(fr, time_delta);
effective_frequency = freq;
last_stamp = time;
abstract_cpu::change_effective_frequency(time, frequency);
}
char * cpu_core::fill_pstate_line(int line_nr, char *buffer)
{
buffer[0] = 0;
unsigned int i;
if (total_stamp ==0) {
for (i = 0; i < pstates.size(); i++)
total_stamp += pstates[i]->time_after;
if (total_stamp == 0)
total_stamp = 1;
}
if (line_nr == LEVEL_HEADER) {
sprintf(buffer,_(" Core"));
return buffer;
}
if (line_nr >= (int)pstates.size() || line_nr < 0)
return buffer;
sprintf(buffer," %5.1f%% ", percentage(1.0* (pstates[line_nr]->time_after) / total_stamp));
return buffer;
}
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