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
|
/*
* gk20a clock scaling profile
*
* Copyright (c) 2013-2016, NVIDIA Corporation. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef GK20A_SCALE_H
#define GK20A_SCALE_H
#include <linux/devfreq.h>
struct clk;
struct gk20a_scale_profile {
struct device *dev;
ktime_t last_event_time;
struct devfreq_dev_profile devfreq_profile;
struct devfreq_dev_status dev_stat;
struct notifier_block qos_notify_block;
unsigned long qos_min_freq;
unsigned long qos_max_freq;
void *private_data;
};
/* Initialization and de-initialization for module */
void gk20a_scale_init(struct device *);
void gk20a_scale_exit(struct device *);
void gk20a_scale_hw_init(struct device *dev);
#if defined(CONFIG_GK20A_DEVFREQ)
/*
* call when performing submit to notify scaling mechanism that the module is
* in use
*/
void gk20a_scale_notify_busy(struct device *);
void gk20a_scale_notify_idle(struct device *);
void gk20a_scale_suspend(struct device *);
void gk20a_scale_resume(struct device *);
int gk20a_scale_qos_notify(struct notifier_block *nb,
unsigned long n, void *p);
#else
static inline void gk20a_scale_notify_busy(struct device *dev) {}
static inline void gk20a_scale_notify_idle(struct device *dev) {}
static inline void gk20a_scale_suspend(struct device *dev) {}
static inline void gk20a_scale_resume(struct device *dev) {}
static inline int gk20a_scale_qos_notify(struct notifier_block *nb,
unsigned long n, void *p)
{
return -ENOSYS;
}
#endif
#endif
|
