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 /*
51 * RTG_MAX_RT_THREAD_NUM should be CONFIG_NR_CPUS in previous version
52 * fit for FFRT here
53 */
54 #define RTG_MAX_RT_THREAD_NUM 20
55 #define INVALID_PREFERRED_CLUSTER 10
56
57 enum rtg_type {
58 VIP = 0,
59 TOP_TASK_KEY,
60 NORMAL_TASK,
61 RTG_TYPE_MAX,
62 };
63
64 struct frame_thread_info {
65 int prio;
66 int thread[MAX_TID_NUM];
67 int thread_num;
68 };
69
70 struct multi_frame_id_manager {
71 DECLARE_BITMAP(id_map, MULTI_FRAME_NUM);
72 unsigned int offset;
73 rwlock_t lock;
74 };
75
76 struct rtg_info {
77 int rtg_num;
78 int rtgs[MULTI_FRAME_NUM];
79 };
80
81 bool is_frame_rtg(int id);
82 int set_frame_rate(struct frame_info *frame_info, int rate);
83 int alloc_multi_frame_info(void);
84 struct frame_info *rtg_active_multi_frame_info(int id);
85 struct frame_info *rtg_multi_frame_info(int id);
86 void release_multi_frame_info(int id);
87 void clear_multi_frame_info(void);
88 void set_frame_prio(struct frame_info *frame_info, int prio);
89 struct task_struct *update_frame_thread(struct frame_info *frame_info,
90 int old_prio, int prio, int pid,
91 struct task_struct *old_task);
92 void update_frame_thread_info(struct frame_info *frame_info,
93 struct frame_thread_info *frame_thread_info);
94 #ifdef CONFIG_SCHED_RTG_RT_THREAD_LIMIT
95 int read_rtg_rt_thread_num(void);
96 #else
read_rtg_rt_thread_num(void)97 static inline int read_rtg_rt_thread_num(void)
98 {
99 return 0;
100 }
101 #endif
102 static inline
frame_info_rtg_load(const struct frame_info * frame_info)103 struct group_ravg *frame_info_rtg_load(const struct frame_info *frame_info)
104 {
105 return &frame_info_rtg(frame_info)->ravg;
106 }
107 void set_frame_sched_state(struct frame_info *frame_info, bool enable);
108 int set_frame_margin(struct frame_info *frame_info, int margin);
109 int set_frame_timestamp(struct frame_info *frame_info, unsigned long timestamp);
110 int set_frame_max_util(struct frame_info *frame_info, int max_util);
111 int set_frame_min_util(struct frame_info *frame_info, int min_util, bool is_boost);
112 struct frame_info *lookup_frame_info_by_grp_id(int grp_id);
113 int list_rtg_group(struct rtg_info *rs_data);
114 int search_rtg(int pid);
115 #endif
116