blob: b457d8215abe0628c6f7141e8c4b395ca5027cff (
plain)
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
|
/*
*
* (C) COPYRIGHT 2011-2015 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the
* GNU General Public License version 2 as published by the Free Software
* Foundation, and any use by you of this program is subject to the terms
* of such GNU licence.
*
* A copy of the licence is included with the program, and can also be obtained
* from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
/*
* Completely Fair Job Scheduler Policy structure definitions
*/
#ifndef _KBASE_JS_POLICY_CFS_H_
#define _KBASE_JS_POLICY_CFS_H_
#define KBASEP_JS_RUNTIME_EMPTY ((u64)-1)
/**
* struct kbasep_js_policy_cfs - Data for the CFS policy
* @head_runtime_us: Number of microseconds the least-run context has been
* running for. The kbasep_js_device_data.queue_mutex must
* be held whilst updating this.
* Reads are possible without this mutex, but an older value
* might be read if no memory barries are issued beforehand.
* @least_runtime_us: Number of microseconds the least-run context in the
* context queue has been running for.
* -1 if context queue is empty.
* @rt_least_runtime_us: Number of microseconds the least-run context in the
* realtime (priority) context queue has been running for.
* -1 if realtime context queue is empty
*/
struct kbasep_js_policy_cfs {
u64 head_runtime_us;
atomic64_t least_runtime_us;
atomic64_t rt_least_runtime_us;
};
/**
* struct kbasep_js_policy_cfs_ctx - a single linked list of all contexts
* @runtime_us: microseconds this context has been running for
* @process_rt_policy: set if calling process policy scheme is a realtime
* scheduler and will use the priority queue. Non-mutable
* after ctx init
* @process_priority: calling process NICE priority, in the range -20..19
*
* &kbasep_js_device_data.runpool_irq.lock must be held when updating
* @runtime_us. Initializing will occur on context init and context enqueue
* (which can only occur in one thread at a time), but multi-thread access only
* occurs while the context is in the runpool.
*
* Reads are possible without the spinlock, but an older value might be read if
* no memory barries are issued beforehand.
*/
struct kbasep_js_policy_cfs_ctx {
u64 runtime_us;
bool process_rt_policy;
int process_priority;
};
/**
* struct kbasep_js_policy_cfs_job - per job information for CFS
* @ticks: number of ticks that this job has been executing for
*
* &kbasep_js_device_data.runpool_irq.lock must be held when accessing @ticks.
*/
struct kbasep_js_policy_cfs_job {
u32 ticks;
};
#endif
|
