1 files changed, 122 insertions, 0 deletions
diff --git a/src/cpu/intel_gpu.cpp b/src/cpu/intel_gpu.cpp
new file mode 100644
index 0000000..e0f4ac2
--- /dev/null
+++ b/src/cpu/intel_gpu.cpp
@@ -0,0 +1,122 @@
+/*
+ * 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 "intel_cpus.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", "Powered On", 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;
+}
+