83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
|
#ifndef __ARCH_ARM_MACH_MSM_IDLE_STATS_DEVICE_H
|
||
|
|
#define __ARCH_ARM_MACH_MSM_IDLE_STATS_DEVICE_H
|
||
|
|
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <linux/ioctl.h>
|
||
|
|
|
||
|
|
#define MSM_IDLE_STATS_EVENT_NONE 0
|
||
|
|
#define MSM_IDLE_STATS_EVENT_BUSY_TIMER_EXPIRED 1
|
||
|
|
#define MSM_IDLE_STATS_EVENT_BUSY_TIMER_EXPIRED_RESET 2
|
||
|
|
#define MSM_IDLE_STATS_EVENT_COLLECTION_NEARLY_FULL 4
|
||
|
|
#define MSM_IDLE_STATS_EVENT_COLLECTION_FULL 8
|
||
|
|
#define MSM_IDLE_STATS_EVENT_IDLE_TIMER_EXPIRED 16
|
||
|
|
|
||
|
|
/*
|
||
|
|
* All time, timer, and time interval values are in units of
|
||
|
|
* microseconds unless stated otherwise.
|
||
|
|
*/
|
||
|
|
#define MSM_IDLE_STATS_NR_MAX_INTERVALS 200
|
||
|
|
|
||
|
|
struct msm_idle_pulse {
|
||
|
|
__s64 busy_start_time;
|
||
|
|
__u32 busy_interval;
|
||
|
|
__u32 wait_interval;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct msm_idle_read_stats {
|
||
|
|
__u32 event;
|
||
|
|
__s64 return_timestamp;
|
||
|
|
__u32 busy_timer_remaining;
|
||
|
|
__u32 nr_collected;
|
||
|
|
struct msm_idle_pulse pulse_chain[MSM_IDLE_STATS_NR_MAX_INTERVALS];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct msm_idle_write_stats {
|
||
|
|
__u32 busy_timer;
|
||
|
|
__u32 next_busy_timer;
|
||
|
|
__u32 max_samples;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define MSM_IDLE_STATS_IOC_MAGIC 0xD8
|
||
|
|
#define MSM_IDLE_STATS_IOC_READ_STATS \
|
||
|
|
_IOWR(MSM_IDLE_STATS_IOC_MAGIC, 1, struct msm_idle_read_stats)
|
||
|
|
#define MSM_IDLE_STATS_IOC_WRITE_STATS \
|
||
|
|
_IOWR(MSM_IDLE_STATS_IOC_MAGIC, 2, struct msm_idle_write_stats)
|
||
|
|
|
||
|
|
#ifdef __KERNEL__
|
||
|
|
#include <linux/hrtimer.h>
|
||
|
|
#include <linux/mutex.h>
|
||
|
|
#include <linux/miscdevice.h>
|
||
|
|
|
||
|
|
struct msm_idle_stats_device {
|
||
|
|
const char *name;
|
||
|
|
void (*get_sample)(struct msm_idle_stats_device *device,
|
||
|
|
struct msm_idle_pulse *pulse);
|
||
|
|
|
||
|
|
struct miscdevice miscdev;
|
||
|
|
spinlock_t lock;
|
||
|
|
wait_queue_head_t wait;
|
||
|
|
struct list_head list;
|
||
|
|
struct hrtimer busy_timer;
|
||
|
|
ktime_t busy_timer_interval;
|
||
|
|
ktime_t idle_start;
|
||
|
|
ktime_t remaining_time;
|
||
|
|
__u32 max_samples;
|
||
|
|
|
||
|
|
struct msm_idle_read_stats *stats;
|
||
|
|
struct msm_idle_read_stats stats_vector[2];
|
||
|
|
};
|
||
|
|
|
||
|
|
int msm_idle_stats_register_device(struct msm_idle_stats_device *device);
|
||
|
|
int msm_idle_stats_deregister_device(struct msm_idle_stats_device *device);
|
||
|
|
void msm_idle_stats_prepare_idle_start(struct msm_idle_stats_device *device);
|
||
|
|
void msm_idle_stats_abort_idle_start(struct msm_idle_stats_device *device);
|
||
|
|
void msm_idle_stats_idle_start(struct msm_idle_stats_device *device);
|
||
|
|
void msm_idle_stats_idle_end(struct msm_idle_stats_device *device,
|
||
|
|
struct msm_idle_pulse *pulse);
|
||
|
|
void msm_idle_stats_update_event(struct msm_idle_stats_device *device,
|
||
|
|
__u32 event);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* __ARCH_ARM_MACH_MSM_IDLE_STATS_DEVICE_H */
|
||
|
|
|