Initial Contribution
msm-2.6.38: tag AU_LINUX_ANDROID_GINGERBREAD.02.03.04.00.142
Signed-off-by: Bryan Huntsman <bryanh@codeaurora.org>
diff --git a/arch/arm/mach-msm/idle_stats.h b/arch/arm/mach-msm/idle_stats.h
new file mode 100644
index 0000000..6c8db1e
--- /dev/null
+++ b/arch/arm/mach-msm/idle_stats.h
@@ -0,0 +1,52 @@
+/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ */
+
+#ifndef __ARCH_ARM_MACH_MSM_IDLE_STATS_H
+#define __ARCH_ARM_MACH_MSM_IDLE_STATS_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+enum msm_idle_stats_event {
+ MSM_IDLE_STATS_EVENT_BUSY_TIMER_EXPIRED = 1,
+ MSM_IDLE_STATS_EVENT_COLLECTION_TIMER_EXPIRED = 2,
+ MSM_IDLE_STATS_EVENT_COLLECTION_FULL = 3,
+ MSM_IDLE_STATS_EVENT_TIMER_MIGRATED = 4,
+};
+
+/*
+ * All time, timer, and time interval values are in units of
+ * microseconds unless stated otherwise.
+ */
+#define MSM_IDLE_STATS_NR_MAX_INTERVALS 100
+#define MSM_IDLE_STATS_MAX_TIMER 1000000
+
+struct msm_idle_stats {
+ __u32 busy_timer;
+ __u32 collection_timer;
+
+ __u32 busy_intervals[MSM_IDLE_STATS_NR_MAX_INTERVALS];
+ __u32 idle_intervals[MSM_IDLE_STATS_NR_MAX_INTERVALS];
+ __u32 nr_collected;
+ __s64 last_busy_start;
+ __s64 last_idle_start;
+
+ enum msm_idle_stats_event event;
+ __s64 return_timestamp;
+};
+
+#define MSM_IDLE_STATS_IOC_MAGIC 0xD8
+#define MSM_IDLE_STATS_IOC_COLLECT \
+ _IOWR(MSM_IDLE_STATS_IOC_MAGIC, 1, struct msm_idle_stats)
+
+#endif /* __ARCH_ARM_MACH_MSM_IDLE_STATS_H */