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/*
* Copyright 2012, 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 "cpu.h"
#include <iostream>
#include <fstream>
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/time.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include "../lib.h"
#include "../parameters/parameters.h"
#include "../display.h"
void i965_core::measurement_start(void)
{
ifstream file;
gettimeofday(&before, NULL);
rc6_before = read_sysfs("/sys/class/drm/card0/power/rc6_residency_ms", NULL);
rc6p_before = read_sysfs("/sys/class/drm/card0/power/rc6p_residency_ms", NULL);
rc6pp_before = read_sysfs("/sys/class/drm/card0/power/rc6pp_residency_ms", NULL);
update_cstate("gpu c0", "Active", 0, 0, 1, 0);
update_cstate("gpu rc6", "RC6", 0, rc6_before, 1, 1);
update_cstate("gpu rc6p", "RC6p", 0, rc6p_before, 1, 2);
update_cstate("gpu rc6pp", "RC6pp", 0, rc6pp_before, 1, 3);
}
char * i965_core::fill_cstate_line(int line_nr, char *buffer, const char *separator)
{
buffer[0] = 0;
double ratio, d = -1.0, time_delta;
if (line_nr == LEVEL_HEADER) {
sprintf(buffer,_(" GPU "));
return buffer;
}
buffer[0] = 0;
time_delta = 1000000 * (after.tv_sec - before.tv_sec) + after.tv_usec - before.tv_usec;
ratio = 100000.0/time_delta;
switch (line_nr) {
case 0:
d = 100.0 - ratio * (rc6_after + rc6p_after + rc6pp_after - rc6_before - rc6p_before - rc6pp_before);
break;
case 1:
d = ratio * (rc6_after - rc6_before);
break;
case 2:
d = ratio * (rc6p_after - rc6p_before);
break;
case 3:
d = ratio * (rc6pp_after - rc6pp_before);
break;
default:
return buffer;
}
/* cope with rounding errors due to the measurement interval */
if (d < 0.0)
d = 0.0;
if (d > 100.0)
d = 100.0;
sprintf(buffer,"%5.1f%%", d);
return buffer;
}
void i965_core::measurement_end(void)
{
gettimeofday(&after, NULL);
rc6_after = read_sysfs("/sys/class/drm/card0/power/rc6_residency_ms", NULL);
rc6p_after = read_sysfs("/sys/class/drm/card0/power/rc6p_residency_ms", NULL);
rc6pp_after = read_sysfs("/sys/class/drm/card0/power/rc6pp_residency_ms", NULL);
}
char * i965_core::fill_pstate_line(int line_nr, char *buffer)
{
buffer[0] = 0;
return buffer;
}
char * i965_core::fill_pstate_name(int line_nr, char *buffer)
{
buffer[0] = 0;
return buffer;
}
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