1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Frame declaration
4 *
5 * Copyright (c) 2022-2023 Huawei Technologies Co., Ltd.
6 */
7
8 #ifndef __FRAME_RTG_H
9 #define __FRAME_RTG_H
10
11 #include <linux/sched.h>
12 #include <linux/bitmap.h>
13 #include <linux/spinlock.h>
14 #include <linux/sched/frame_rtg.h>
15
16 #define MULTI_FRAME_ID (DEFAULT_CGROUP_COLOC_ID + 1)
17 #define MULTI_FRAME_NUM (MAX_NUM_CGROUP_COLOC_ID - DEFAULT_CGROUP_COLOC_ID - 1)
18
19 #define NOT_RT_PRIO (-1)
20 #define STATIC_RTG_DEPTH (-1)
21
22 #define FRAME_START (1 << 0)
23 #define FRAME_END (1 << 1)
24 #define FRAME_INVALID (1 << 2)
25 #define FRAME_USE_MARGIN_IMME (1 << 4)
26 #define FRAME_TIMESTAMP_SKIP_START (1 << 5)
27 #define FRAME_TIMESTAMP_SKIP_END (1 << 6)
28 #define FRAME_SETTIME (FRAME_START | FRAME_END | \
29 FRAME_USE_MARGIN_IMME)
30 #define FRAME_SETTIME_PARAM (-1)
31
32 #define DEFAULT_FRAME_RATE 60
33 #define MIN_FRAME_RATE 1
34 #define MAX_FRAME_RATE 120
35
36 /* MARGIN value : [-100, 100] */
37 #define DEFAULT_VLOAD_MARGIN 16
38 #define MIN_VLOAD_MARGIN (-100)
39 #define MAX_VLOAD_MARGIN 0xffff
40
41 #define FRAME_MAX_VLOAD SCHED_CAPACITY_SCALE
42 #define FRAME_MAX_LOAD SCHED_CAPACITY_SCALE
43 #define FRAME_UTIL_INVALID_FACTOR 4
44 #define FRAME_DEFAULT_MIN_UTIL 0
45 #define FRAME_DEFAULT_MAX_UTIL SCHED_CAPACITY_SCALE
46 #define FRAME_DEFAULT_MIN_PREV_UTIL 0
47 #define FRAME_DEFAULT_MAX_PREV_UTIL SCHED_CAPACITY_SCALE
48
49 #define DEFAULT_MAX_RT_THREAD 5
50 #define RTG_MAX_RT_THREAD_NUM CONFIG_NR_CPUS
51 #define INVALID_PREFERRED_CLUSTER 10
52
53 enum rtg_type {
54 VIP = 0,
55 TOP_TASK_KEY,
56 NORMAL_TASK,
57 RTG_TYPE_MAX,
58 };
59
60 struct frame_thread_info {
61 int prio;
62 int thread[MAX_TID_NUM];
63 int thread_num;
64 };
65
66 struct multi_frame_id_manager {
67 DECLARE_BITMAP(id_map, MULTI_FRAME_NUM);
68 unsigned int offset;
69 rwlock_t lock;
70 };
71
72 struct rtg_info {
73 int rtg_num;
74 int rtgs[MULTI_FRAME_NUM];
75 };
76
77 bool is_frame_rtg(int id);
78 int set_frame_rate(struct frame_info *frame_info, int rate);
79 int alloc_multi_frame_info(void);
80 struct frame_info *rtg_active_multi_frame_info(int id);
81 struct frame_info *rtg_multi_frame_info(int id);
82 void release_multi_frame_info(int id);
83 void clear_multi_frame_info(void);
84 void set_frame_prio(struct frame_info *frame_info, int prio);
85 struct task_struct *update_frame_thread(struct frame_info *frame_info,
86 int old_prio, int prio, int pid,
87 struct task_struct *old_task);
88 void update_frame_thread_info(struct frame_info *frame_info,
89 struct frame_thread_info *frame_thread_info);
90 #ifdef CONFIG_SCHED_RTG_RT_THREAD_LIMIT
91 int read_rtg_rt_thread_num(void);
92 #else
read_rtg_rt_thread_num(void)93 static inline int read_rtg_rt_thread_num(void)
94 {
95 return 0;
96 }
97 #endif
98 static inline
frame_info_rtg_load(const struct frame_info * frame_info)99 struct group_ravg *frame_info_rtg_load(const struct frame_info *frame_info)
100 {
101 return &frame_info_rtg(frame_info)->ravg;
102 }
103 void set_frame_sched_state(struct frame_info *frame_info, bool enable);
104 int set_frame_margin(struct frame_info *frame_info, int margin);
105 int set_frame_timestamp(struct frame_info *frame_info, unsigned long timestamp);
106 int set_frame_max_util(struct frame_info *frame_info, int max_util);
107 int set_frame_min_util(struct frame_info *frame_info, int min_util, bool is_boost);
108 struct frame_info *lookup_frame_info_by_grp_id(int grp_id);
109 int list_rtg_group(struct rtg_info *rs_data);
110 int search_rtg(int pid);
111 #endif
112