Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2
3#include <stdint.h>
4#include <time.h>
5#include <sched.h>
6
7/*
8 * '18446744073709551615\0'
9 */
10#define BUFF_U64_STR_SIZE 24
11#define MAX_PATH 1024
12#define MAX_NICE 20
13#define MIN_NICE -19
14
15#define container_of(ptr, type, member)({ \
16 const typeof(((type *)0)->member) *__mptr = (ptr); \
17 (type *)((char *)__mptr - offsetof(type, member)) ; })
18
19extern int config_debug;
20void debug_msg(const char *fmt, ...);
21void err_msg(const char *fmt, ...);
22
23long parse_seconds_duration(char *val);
24void get_duration(time_t start_time, char *output, int output_size);
25
26int parse_cpu_list(char *cpu_list, char **monitored_cpus);
27long long get_llong_from_str(char *start);
28
29static inline void
30update_min(unsigned long long *a, unsigned long long *b)
31{
32 if (*a > *b)
33 *a = *b;
34}
35
36static inline void
37update_max(unsigned long long *a, unsigned long long *b)
38{
39 if (*a < *b)
40 *a = *b;
41}
42
43static inline void
44update_sum(unsigned long long *a, unsigned long long *b)
45{
46 *a += *b;
47}
48
49#ifndef SCHED_ATTR_SIZE_VER0
50struct sched_attr {
51 uint32_t size;
52 uint32_t sched_policy;
53 uint64_t sched_flags;
54 int32_t sched_nice;
55 uint32_t sched_priority;
56 uint64_t sched_runtime;
57 uint64_t sched_deadline;
58 uint64_t sched_period;
59};
60#endif /* SCHED_ATTR_SIZE_VER0 */
61
62int parse_prio(char *arg, struct sched_attr *sched_param);
63int parse_cpu_set(char *cpu_list, cpu_set_t *set);
64int __set_sched_attr(int pid, struct sched_attr *attr);
65int set_comm_sched_attr(const char *comm_prefix, struct sched_attr *attr);
66int set_comm_cgroup(const char *comm_prefix, const char *cgroup);
67int set_pid_cgroup(pid_t pid, const char *cgroup);
68int set_cpu_dma_latency(int32_t latency);
69#ifdef HAVE_LIBCPUPOWER_SUPPORT
70int save_cpu_idle_disable_state(unsigned int cpu);
71int restore_cpu_idle_disable_state(unsigned int cpu);
72void free_cpu_idle_disable_states(void);
73int set_deepest_cpu_idle_state(unsigned int cpu, unsigned int state);
74static inline int have_libcpupower_support(void) { return 1; }
75#else
76static inline int save_cpu_idle_disable_state(unsigned int cpu) { return -1; }
77static inline int restore_cpu_idle_disable_state(unsigned int cpu) { return -1; }
78static inline void free_cpu_idle_disable_states(void) { }
79static inline int set_deepest_cpu_idle_state(unsigned int cpu, unsigned int state) { return -1; }
80static inline int have_libcpupower_support(void) { return 0; }
81#endif /* HAVE_LIBCPUPOWER_SUPPORT */
82int auto_house_keeping(cpu_set_t *monitored_cpus);
83
84#define ns_to_usf(x) (((double)x/1000))
85#define ns_to_per(total, part) ((part * 100) / (double)total)