1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_KERNEL_STAT_H 2 #ifndef _LINUX_KERNEL_STAT_H
3 #define _LINUX_KERNEL_STAT_H 3 #define _LINUX_KERNEL_STAT_H
4 4
5 #include <linux/smp.h> 5 #include <linux/smp.h>
6 #include <linux/threads.h> 6 #include <linux/threads.h>
7 #include <linux/percpu.h> 7 #include <linux/percpu.h>
>> 8 #include <linux/cpumask.h>
8 #include <linux/interrupt.h> 9 #include <linux/interrupt.h>
9 #include <linux/sched.h> 10 #include <linux/sched.h>
10 #include <linux/vtime.h> 11 #include <linux/vtime.h>
11 #include <asm/irq.h> 12 #include <asm/irq.h>
12 13
13 /* 14 /*
14 * 'kernel_stat.h' contains the definitions ne 15 * 'kernel_stat.h' contains the definitions needed for doing
15 * some kernel statistics (CPU usage, context 16 * some kernel statistics (CPU usage, context switches ...),
16 * used by rstatd/perfmeter 17 * used by rstatd/perfmeter
17 */ 18 */
18 19
19 enum cpu_usage_stat { 20 enum cpu_usage_stat {
20 CPUTIME_USER, 21 CPUTIME_USER,
21 CPUTIME_NICE, 22 CPUTIME_NICE,
22 CPUTIME_SYSTEM, 23 CPUTIME_SYSTEM,
23 CPUTIME_SOFTIRQ, 24 CPUTIME_SOFTIRQ,
24 CPUTIME_IRQ, 25 CPUTIME_IRQ,
25 CPUTIME_IDLE, 26 CPUTIME_IDLE,
26 CPUTIME_IOWAIT, 27 CPUTIME_IOWAIT,
27 CPUTIME_STEAL, 28 CPUTIME_STEAL,
28 CPUTIME_GUEST, 29 CPUTIME_GUEST,
29 CPUTIME_GUEST_NICE, 30 CPUTIME_GUEST_NICE,
30 #ifdef CONFIG_SCHED_CORE 31 #ifdef CONFIG_SCHED_CORE
31 CPUTIME_FORCEIDLE, 32 CPUTIME_FORCEIDLE,
32 #endif 33 #endif
33 NR_STATS, 34 NR_STATS,
34 }; 35 };
35 36
36 struct kernel_cpustat { 37 struct kernel_cpustat {
37 u64 cpustat[NR_STATS]; 38 u64 cpustat[NR_STATS];
38 }; 39 };
39 40
40 struct kernel_stat { 41 struct kernel_stat {
41 unsigned long irqs_sum; 42 unsigned long irqs_sum;
42 unsigned int softirqs[NR_SOFTIRQS]; 43 unsigned int softirqs[NR_SOFTIRQS];
43 }; 44 };
44 45
45 DECLARE_PER_CPU(struct kernel_stat, kstat); 46 DECLARE_PER_CPU(struct kernel_stat, kstat);
46 DECLARE_PER_CPU(struct kernel_cpustat, kernel_ 47 DECLARE_PER_CPU(struct kernel_cpustat, kernel_cpustat);
47 48
48 /* Must have preemption disabled for this to b 49 /* Must have preemption disabled for this to be meaningful. */
49 #define kstat_this_cpu this_cpu_ptr(&kstat) 50 #define kstat_this_cpu this_cpu_ptr(&kstat)
50 #define kcpustat_this_cpu this_cpu_ptr(&kernel 51 #define kcpustat_this_cpu this_cpu_ptr(&kernel_cpustat)
51 #define kstat_cpu(cpu) per_cpu(kstat, cpu) 52 #define kstat_cpu(cpu) per_cpu(kstat, cpu)
52 #define kcpustat_cpu(cpu) per_cpu(kernel_cpust 53 #define kcpustat_cpu(cpu) per_cpu(kernel_cpustat, cpu)
53 54
54 extern unsigned long long nr_context_switches_ 55 extern unsigned long long nr_context_switches_cpu(int cpu);
55 extern unsigned long long nr_context_switches( 56 extern unsigned long long nr_context_switches(void);
56 57
57 extern unsigned int kstat_irqs_cpu(unsigned in 58 extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu);
58 extern void kstat_incr_irq_this_cpu(unsigned i 59 extern void kstat_incr_irq_this_cpu(unsigned int irq);
59 60
60 static inline void kstat_incr_softirqs_this_cp 61 static inline void kstat_incr_softirqs_this_cpu(unsigned int irq)
61 { 62 {
62 __this_cpu_inc(kstat.softirqs[irq]); 63 __this_cpu_inc(kstat.softirqs[irq]);
63 } 64 }
64 65
65 static inline unsigned int kstat_softirqs_cpu( 66 static inline unsigned int kstat_softirqs_cpu(unsigned int irq, int cpu)
66 { 67 {
67 return kstat_cpu(cpu).softirqs[irq]; 68 return kstat_cpu(cpu).softirqs[irq];
68 } 69 }
69 70
70 static inline unsigned int kstat_cpu_softirqs_ 71 static inline unsigned int kstat_cpu_softirqs_sum(int cpu)
71 { 72 {
72 int i; 73 int i;
73 unsigned int sum = 0; 74 unsigned int sum = 0;
74 75
75 for (i = 0; i < NR_SOFTIRQS; i++) 76 for (i = 0; i < NR_SOFTIRQS; i++)
76 sum += kstat_softirqs_cpu(i, c 77 sum += kstat_softirqs_cpu(i, cpu);
77 78
78 return sum; 79 return sum;
79 } 80 }
80 <<
81 #ifdef CONFIG_GENERIC_IRQ_STAT_SNAPSHOT <<
82 extern void kstat_snapshot_irqs(void); <<
83 extern unsigned int kstat_get_irq_since_snapsh <<
84 #else <<
85 static inline void kstat_snapshot_irqs(void) { <<
86 static inline unsigned int kstat_get_irq_since <<
87 #endif <<
88 81
89 /* 82 /*
90 * Number of interrupts per specific IRQ sourc 83 * Number of interrupts per specific IRQ source, since bootup
91 */ 84 */
92 extern unsigned int kstat_irqs_usr(unsigned in 85 extern unsigned int kstat_irqs_usr(unsigned int irq);
93 86
94 /* 87 /*
95 * Number of interrupts per cpu, since bootup 88 * Number of interrupts per cpu, since bootup
96 */ 89 */
97 static inline unsigned long kstat_cpu_irqs_sum 90 static inline unsigned long kstat_cpu_irqs_sum(unsigned int cpu)
98 { 91 {
99 return kstat_cpu(cpu).irqs_sum; 92 return kstat_cpu(cpu).irqs_sum;
100 } 93 }
101 94
102 #ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN 95 #ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
103 extern u64 kcpustat_field(struct kernel_cpusta 96 extern u64 kcpustat_field(struct kernel_cpustat *kcpustat,
104 enum cpu_usage_stat 97 enum cpu_usage_stat usage, int cpu);
105 extern void kcpustat_cpu_fetch(struct kernel_c 98 extern void kcpustat_cpu_fetch(struct kernel_cpustat *dst, int cpu);
106 #else 99 #else
107 static inline u64 kcpustat_field(struct kernel 100 static inline u64 kcpustat_field(struct kernel_cpustat *kcpustat,
108 enum cpu_usag 101 enum cpu_usage_stat usage, int cpu)
109 { 102 {
110 return kcpustat->cpustat[usage]; 103 return kcpustat->cpustat[usage];
111 } 104 }
112 105
113 static inline void kcpustat_cpu_fetch(struct k 106 static inline void kcpustat_cpu_fetch(struct kernel_cpustat *dst, int cpu)
114 { 107 {
115 *dst = kcpustat_cpu(cpu); 108 *dst = kcpustat_cpu(cpu);
116 } 109 }
117 110
118 #endif 111 #endif
119 112
120 extern void account_user_time(struct task_stru 113 extern void account_user_time(struct task_struct *, u64);
121 extern void account_guest_time(struct task_str 114 extern void account_guest_time(struct task_struct *, u64);
122 extern void account_system_time(struct task_st 115 extern void account_system_time(struct task_struct *, int, u64);
123 extern void account_system_index_time(struct t 116 extern void account_system_index_time(struct task_struct *, u64,
124 enum cpu 117 enum cpu_usage_stat);
125 extern void account_steal_time(u64); 118 extern void account_steal_time(u64);
126 extern void account_idle_time(u64); 119 extern void account_idle_time(u64);
127 extern u64 get_idle_time(struct kernel_cpustat 120 extern u64 get_idle_time(struct kernel_cpustat *kcs, int cpu);
128 121
129 #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE 122 #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
130 static inline void account_process_tick(struct 123 static inline void account_process_tick(struct task_struct *tsk, int user)
131 { 124 {
132 vtime_flush(tsk); 125 vtime_flush(tsk);
133 } 126 }
134 #else 127 #else
135 extern void account_process_tick(struct task_s 128 extern void account_process_tick(struct task_struct *, int user);
136 #endif 129 #endif
137 130
138 extern void account_idle_ticks(unsigned long t 131 extern void account_idle_ticks(unsigned long ticks);
139 132
140 #ifdef CONFIG_SCHED_CORE 133 #ifdef CONFIG_SCHED_CORE
141 extern void __account_forceidle_time(struct ta 134 extern void __account_forceidle_time(struct task_struct *tsk, u64 delta);
142 #endif 135 #endif
143 136
144 #endif /* _LINUX_KERNEL_STAT_H */ 137 #endif /* _LINUX_KERNEL_STAT_H */
145 138
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