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i915-gpu.cpp
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i915-gpu.cpp
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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 <iostream>
#include <fstream>
#include <stdio.h>
#include <sys/types.h>
#include <dirent.h>
using namespace std;
#include "device.h"
#include "i915-gpu.h"
#include "../parameters/parameters.h"
#include "../process/powerconsumer.h"
#include <string.h>
i915gpu::i915gpu()
{
index = get_param_index("gpu-operations");
rindex = get_result_index("gpu-operations");
}
void i915gpu::start_measurement(void)
{
}
void i915gpu::end_measurement(void)
{
}
double i915gpu::utilization(void)
{
return get_result_value(rindex);
}
void create_i915_gpu(void)
{
char filename[4096];
class i915gpu *gpu;
strcpy(filename, "/sys/kernel/debug/tracing/events/i915/i915_gem_request_submit/format");
if (access(filename, R_OK) !=0)
return;
register_parameter("gpu-operations");
gpu = new class i915gpu();
all_devices.push_back(gpu);
}
double i915gpu::power_usage(struct result_bundle *result, struct parameter_bundle *bundle)
{
double power;
double factor;
double utilization;
power = 0;
factor = get_parameter_value(index, bundle);
utilization = get_result_value(rindex, result);
power += utilization * factor / 100.0;
return power;
}