1 files changed, 121 insertions, 0 deletions
diff --git a/src/devices/i915-gpu.cpp b/src/devices/i915-gpu.cpp
new file mode 100644
index 0000000..d0f1d69
--- /dev/null
+++ b/src/devices/i915-gpu.cpp
@@ -0,0 +1,121 @@
+/*
+ * 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>
+#include <unistd.h>
+#include <limits.h>
+#include "../lib.h"
+
+using namespace std;
+
+#include "device.h"
+#include "i915-gpu.h"
+#include "../parameters/parameters.h"
+#include "../process/powerconsumer.h"
+#include "gpu_rapl_device.h"
+
+#include <string.h>
+#include <unistd.h>
+
+i915gpu::i915gpu(): device()
+{
+	index = get_param_index("gpu-operations");
+	rindex = get_result_index("gpu-operations");
+}
+
+const char * i915gpu::device_name(void)
+{
+	if (child_devices.size())
+		return "GPU misc";
+	else
+		return "GPU";
+}
+
+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[PATH_MAX];
+	class i915gpu *gpu;
+	gpu_rapl_device *rapl_dev;
+
+	pt_strcpy(filename, "/sys/kernel/debug/tracing/events/i915/i915_gem_ring_dispatch/format");
+
+	if (access(filename, R_OK) !=0) {
+		/* try an older tracepoint */
+		pt_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);
+
+	rapl_dev = new class gpu_rapl_device(gpu);
+	if (rapl_dev->device_present())
+		all_devices.push_back(rapl_dev);
+}
+
+
+
+double i915gpu::power_usage(struct result_bundle *result, struct parameter_bundle *bundle)
+{
+	double power;
+	double factor;
+	double util;
+	double child_power;
+
+	power = 0;
+	factor = get_parameter_value(index, bundle);
+	util = get_result_value(rindex, result);
+
+	power += util * factor / 100.0;
+	for (unsigned int i = 0; i < child_devices.size(); ++i) {
+		child_power = child_devices[i]->power_usage(result, bundle);
+		if ((power - child_power) > 0.0)
+			power -= child_power;
+	}
+
+	return power;
+}