1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
/* Copyright (c) 2010-2014, The Linux Foundation. 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 __KGSL_PWRSCALE_H
#define __KGSL_PWRSCALE_H
#include <linux/devfreq.h>
#include <linux/msm_adreno_devfreq.h>
/* devfreq governor call window in msec */
#define KGSL_GOVERNOR_CALL_INTERVAL 5
struct kgsl_power_stats {
u64 busy_time;
u64 ram_time;
u64 ram_wait;
};
struct kgsl_pwrscale {
struct devfreq *devfreqptr;
struct msm_adreno_extended_profile gpu_profile;
struct msm_busmon_extended_profile bus_profile;
unsigned int freq_table[KGSL_MAX_PWRLEVELS];
char last_governor[DEVFREQ_NAME_LEN];
struct kgsl_power_stats accum_stats;
bool enabled;
s64 time;
s64 on_time;
struct srcu_notifier_head nh;
struct workqueue_struct *devfreq_wq;
struct work_struct devfreq_suspend_ws;
struct work_struct devfreq_resume_ws;
struct work_struct devfreq_notify_ws;
unsigned long next_governor_call;
};
int kgsl_pwrscale_init(struct device *dev, const char *governor);
void kgsl_pwrscale_close(struct kgsl_device *device);
void kgsl_pwrscale_update(struct kgsl_device *device);
void kgsl_pwrscale_update_stats(struct kgsl_device *device);
void kgsl_pwrscale_busy(struct kgsl_device *device);
void kgsl_pwrscale_sleep(struct kgsl_device *device);
void kgsl_pwrscale_wake(struct kgsl_device *device);
void kgsl_pwrscale_enable(struct kgsl_device *device);
void kgsl_pwrscale_disable(struct kgsl_device *device);
int kgsl_devfreq_target(struct device *dev, unsigned long *freq, u32 flags);
int kgsl_devfreq_get_dev_status(struct device *, struct devfreq_dev_status *);
int kgsl_devfreq_get_cur_freq(struct device *dev, unsigned long *freq);
int kgsl_busmon_target(struct device *dev, unsigned long *freq, u32 flags);
int kgsl_busmon_get_dev_status(struct device *, struct devfreq_dev_status *);
int kgsl_busmon_get_cur_freq(struct device *dev, unsigned long *freq);
#define KGSL_PWRSCALE_INIT(_priv_data) { \
.enabled = true, \
.gpu_profile = { \
.private_data = _priv_data, \
.profile = { \
.target = kgsl_devfreq_target, \
.get_dev_status = kgsl_devfreq_get_dev_status, \
.get_cur_freq = kgsl_devfreq_get_cur_freq, \
} }, \
.bus_profile = { \
.private_data = _priv_data, \
.profile = { \
.target = kgsl_busmon_target, \
.get_dev_status = kgsl_busmon_get_dev_status, \
.get_cur_freq = kgsl_busmon_get_cur_freq, \
} } }
#endif
|
