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( 55 extern unsigned long long nr_context_switches(void);
56 56
57 extern unsigned int kstat_irqs_cpu(unsigned in 57 extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu);
58 extern void kstat_incr_irq_this_cpu(unsigned i 58 extern void kstat_incr_irq_this_cpu(unsigned int irq);
59 59
60 static inline void kstat_incr_softirqs_this_cp 60 static inline void kstat_incr_softirqs_this_cpu(unsigned int irq)
61 { 61 {
62 __this_cpu_inc(kstat.softirqs[irq]); 62 __this_cpu_inc(kstat.softirqs[irq]);
63 } 63 }
64 64
65 static inline unsigned int kstat_softirqs_cpu( 65 static inline unsigned int kstat_softirqs_cpu(unsigned int irq, int cpu)
66 { 66 {
67 return kstat_cpu(cpu).softirqs[irq]; 67 return kstat_cpu(cpu).softirqs[irq];
68 } 68 }
69 <<
70 static inline unsigned int kstat_cpu_softirqs_ <<
71 { <<
72 int i; <<
73 unsigned int sum = 0; <<
74 <<
75 for (i = 0; i < NR_SOFTIRQS; i++) <<
76 sum += kstat_softirqs_cpu(i, c <<
77 <<
78 return sum; <<
79 } <<
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 69
89 /* 70 /*
90 * Number of interrupts per specific IRQ sourc 71 * Number of interrupts per specific IRQ source, since bootup
91 */ 72 */
92 extern unsigned int kstat_irqs_usr(unsigned in 73 extern unsigned int kstat_irqs_usr(unsigned int irq);
93 74
94 /* 75 /*
95 * Number of interrupts per cpu, since bootup 76 * Number of interrupts per cpu, since bootup
96 */ 77 */
97 static inline unsigned long kstat_cpu_irqs_sum 78 static inline unsigned long kstat_cpu_irqs_sum(unsigned int cpu)
98 { 79 {
99 return kstat_cpu(cpu).irqs_sum; 80 return kstat_cpu(cpu).irqs_sum;
100 } 81 }
101 82
102 #ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN 83 #ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
103 extern u64 kcpustat_field(struct kernel_cpusta 84 extern u64 kcpustat_field(struct kernel_cpustat *kcpustat,
104 enum cpu_usage_stat 85 enum cpu_usage_stat usage, int cpu);
105 extern void kcpustat_cpu_fetch(struct kernel_c 86 extern void kcpustat_cpu_fetch(struct kernel_cpustat *dst, int cpu);
106 #else 87 #else
107 static inline u64 kcpustat_field(struct kernel 88 static inline u64 kcpustat_field(struct kernel_cpustat *kcpustat,
108 enum cpu_usag 89 enum cpu_usage_stat usage, int cpu)
109 { 90 {
110 return kcpustat->cpustat[usage]; 91 return kcpustat->cpustat[usage];
111 } 92 }
112 93
113 static inline void kcpustat_cpu_fetch(struct k 94 static inline void kcpustat_cpu_fetch(struct kernel_cpustat *dst, int cpu)
114 { 95 {
115 *dst = kcpustat_cpu(cpu); 96 *dst = kcpustat_cpu(cpu);
116 } 97 }
117 98
118 #endif 99 #endif
119 100
120 extern void account_user_time(struct task_stru 101 extern void account_user_time(struct task_struct *, u64);
121 extern void account_guest_time(struct task_str 102 extern void account_guest_time(struct task_struct *, u64);
122 extern void account_system_time(struct task_st 103 extern void account_system_time(struct task_struct *, int, u64);
123 extern void account_system_index_time(struct t 104 extern void account_system_index_time(struct task_struct *, u64,
124 enum cpu 105 enum cpu_usage_stat);
125 extern void account_steal_time(u64); 106 extern void account_steal_time(u64);
126 extern void account_idle_time(u64); 107 extern void account_idle_time(u64);
127 extern u64 get_idle_time(struct kernel_cpustat 108 extern u64 get_idle_time(struct kernel_cpustat *kcs, int cpu);
128 109
129 #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE 110 #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
130 static inline void account_process_tick(struct 111 static inline void account_process_tick(struct task_struct *tsk, int user)
131 { 112 {
132 vtime_flush(tsk); 113 vtime_flush(tsk);
133 } 114 }
134 #else 115 #else
135 extern void account_process_tick(struct task_s 116 extern void account_process_tick(struct task_struct *, int user);
136 #endif 117 #endif
137 118
138 extern void account_idle_ticks(unsigned long t 119 extern void account_idle_ticks(unsigned long ticks);
139 120
140 #ifdef CONFIG_SCHED_CORE 121 #ifdef CONFIG_SCHED_CORE
141 extern void __account_forceidle_time(struct ta 122 extern void __account_forceidle_time(struct task_struct *tsk, u64 delta);
142 #endif 123 #endif
143 124
144 #endif /* _LINUX_KERNEL_STAT_H */ 125 #endif /* _LINUX_KERNEL_STAT_H */
145 126
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