1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_CPUMAP_H 2 #ifndef __PERF_CPUMAP_H
3 #define __PERF_CPUMAP_H 3 #define __PERF_CPUMAP_H
4 4
5 #include <stdbool.h> 5 #include <stdbool.h>
6 #include <stdio.h> 6 #include <stdio.h>
7 #include <perf/cpumap.h> 7 #include <perf/cpumap.h>
>> 8 #include <linux/refcount.h>
8 9
9 /** Identify where counts are aggregated, -1 i 10 /** Identify where counts are aggregated, -1 implies not to aggregate. */
10 struct aggr_cpu_id { 11 struct aggr_cpu_id {
11 /** A value in the range 0 to number o 12 /** A value in the range 0 to number of threads. */
12 int thread_idx; 13 int thread_idx;
13 /** The numa node X as read from /sys/ 14 /** The numa node X as read from /sys/devices/system/node/nodeX. */
14 int node; 15 int node;
15 /** 16 /**
16 * The socket number as read from 17 * The socket number as read from
17 * /sys/devices/system/cpu/cpuX/topolo 18 * /sys/devices/system/cpu/cpuX/topology/physical_package_id.
18 */ 19 */
19 int socket; 20 int socket;
20 /** The die id as read from /sys/devic 21 /** The die id as read from /sys/devices/system/cpu/cpuX/topology/die_id. */
21 int die; 22 int die;
22 /** The cluster id as read from /sys/d <<
23 int cluster; <<
24 /** The cache level as read from /sys/ 23 /** The cache level as read from /sys/devices/system/cpu/cpuX/cache/indexY/level */
25 int cache_lvl; 24 int cache_lvl;
26 /** 25 /**
27 * The cache instance ID, which is the 26 * The cache instance ID, which is the first CPU in the
28 * /sys/devices/system/cpu/cpuX/cache/ 27 * /sys/devices/system/cpu/cpuX/cache/indexY/shared_cpu_list
29 */ 28 */
30 int cache; 29 int cache;
31 /** The core id as read from /sys/devi 30 /** The core id as read from /sys/devices/system/cpu/cpuX/topology/core_id. */
32 int core; 31 int core;
33 /** CPU aggregation, note there is one 32 /** CPU aggregation, note there is one CPU for each SMT thread. */
34 struct perf_cpu cpu; 33 struct perf_cpu cpu;
35 }; 34 };
36 35
37 /** A collection of aggr_cpu_id values, the "b 36 /** A collection of aggr_cpu_id values, the "built" version is sorted and uniqued. */
38 struct cpu_aggr_map { 37 struct cpu_aggr_map {
>> 38 refcount_t refcnt;
39 /** Number of valid entries. */ 39 /** Number of valid entries. */
40 int nr; 40 int nr;
41 /** The entries. */ 41 /** The entries. */
42 struct aggr_cpu_id map[]; 42 struct aggr_cpu_id map[];
43 }; 43 };
44 44
45 #define cpu_aggr_map__for_each_idx(idx, aggr_m 45 #define cpu_aggr_map__for_each_idx(idx, aggr_map) \
46 for ((idx) = 0; (idx) < aggr_map->nr; 46 for ((idx) = 0; (idx) < aggr_map->nr; (idx)++)
47 47
48 struct perf_record_cpu_map_data; 48 struct perf_record_cpu_map_data;
49 49
50 bool perf_record_cpu_map_data__test_bit(int i, 50 bool perf_record_cpu_map_data__test_bit(int i, const struct perf_record_cpu_map_data *data);
51 51
52 struct perf_cpu_map *perf_cpu_map__empty_new(i 52 struct perf_cpu_map *perf_cpu_map__empty_new(int nr);
53 53
54 struct perf_cpu_map *cpu_map__new_data(const s 54 struct perf_cpu_map *cpu_map__new_data(const struct perf_record_cpu_map_data *data);
55 size_t cpu_map__snprint(struct perf_cpu_map *m 55 size_t cpu_map__snprint(struct perf_cpu_map *map, char *buf, size_t size);
56 size_t cpu_map__snprint_mask(struct perf_cpu_m 56 size_t cpu_map__snprint_mask(struct perf_cpu_map *map, char *buf, size_t size);
57 size_t cpu_map__fprintf(struct perf_cpu_map *m 57 size_t cpu_map__fprintf(struct perf_cpu_map *map, FILE *fp);
58 struct perf_cpu_map *cpu_map__online(void); /* 58 struct perf_cpu_map *cpu_map__online(void); /* thread unsafe */
59 59
60 int cpu__setup_cpunode_map(void); 60 int cpu__setup_cpunode_map(void);
61 61
62 int cpu__max_node(void); 62 int cpu__max_node(void);
63 struct perf_cpu cpu__max_cpu(void); 63 struct perf_cpu cpu__max_cpu(void);
64 struct perf_cpu cpu__max_present_cpu(void); 64 struct perf_cpu cpu__max_present_cpu(void);
65 65
66 /** 66 /**
67 * cpu_map__is_dummy - Events associated with 67 * cpu_map__is_dummy - Events associated with a pid, rather than a CPU, use a single dummy map with an entry of -1.
68 */ 68 */
69 static inline bool cpu_map__is_dummy(const str 69 static inline bool cpu_map__is_dummy(const struct perf_cpu_map *cpus)
70 { 70 {
71 return perf_cpu_map__nr(cpus) == 1 && 71 return perf_cpu_map__nr(cpus) == 1 && perf_cpu_map__cpu(cpus, 0).cpu == -1;
72 } 72 }
73 73
74 /** 74 /**
75 * cpu__get_node - Returns the numa node X as 75 * cpu__get_node - Returns the numa node X as read from
76 * /sys/devices/system/node/nodeX for the give 76 * /sys/devices/system/node/nodeX for the given CPU.
77 */ 77 */
78 int cpu__get_node(struct perf_cpu cpu); 78 int cpu__get_node(struct perf_cpu cpu);
79 /** 79 /**
80 * cpu__get_socket_id - Returns the socket num 80 * cpu__get_socket_id - Returns the socket number as read from
81 * /sys/devices/system/cpu/cpuX/topology/physi 81 * /sys/devices/system/cpu/cpuX/topology/physical_package_id for the given CPU.
82 */ 82 */
83 int cpu__get_socket_id(struct perf_cpu cpu); 83 int cpu__get_socket_id(struct perf_cpu cpu);
84 /** 84 /**
85 * cpu__get_die_id - Returns the die id as rea 85 * cpu__get_die_id - Returns the die id as read from
86 * /sys/devices/system/cpu/cpuX/topology/die_i 86 * /sys/devices/system/cpu/cpuX/topology/die_id for the given CPU.
87 */ 87 */
88 int cpu__get_die_id(struct perf_cpu cpu); 88 int cpu__get_die_id(struct perf_cpu cpu);
89 /** 89 /**
90 * cpu__get_cluster_id - Returns the cluster i <<
91 * /sys/devices/system/cpu/cpuX/topology/clust <<
92 */ <<
93 int cpu__get_cluster_id(struct perf_cpu cpu); <<
94 /** <<
95 * cpu__get_core_id - Returns the core id as r 90 * cpu__get_core_id - Returns the core id as read from
96 * /sys/devices/system/cpu/cpuX/topology/core_ 91 * /sys/devices/system/cpu/cpuX/topology/core_id for the given CPU.
97 */ 92 */
98 int cpu__get_core_id(struct perf_cpu cpu); 93 int cpu__get_core_id(struct perf_cpu cpu);
99 94
100 /** 95 /**
101 * cpu_aggr_map__empty_new - Create a cpu_aggr 96 * cpu_aggr_map__empty_new - Create a cpu_aggr_map of size nr with every entry
102 * being empty. 97 * being empty.
103 */ 98 */
104 struct cpu_aggr_map *cpu_aggr_map__empty_new(i 99 struct cpu_aggr_map *cpu_aggr_map__empty_new(int nr);
105 100
106 typedef struct aggr_cpu_id (*aggr_cpu_id_get_t 101 typedef struct aggr_cpu_id (*aggr_cpu_id_get_t)(struct perf_cpu cpu, void *data);
107 102
108 /** 103 /**
109 * cpu_aggr_map__new - Create a cpu_aggr_map w 104 * cpu_aggr_map__new - Create a cpu_aggr_map with an aggr_cpu_id for each cpu in
110 * cpus. The aggr_cpu_id is created with 'get_ 105 * cpus. The aggr_cpu_id is created with 'get_id' that may have a data value
111 * passed to it. The cpu_aggr_map is sorted wi 106 * passed to it. The cpu_aggr_map is sorted with duplicate values removed.
112 */ 107 */
113 struct cpu_aggr_map *cpu_aggr_map__new(const s 108 struct cpu_aggr_map *cpu_aggr_map__new(const struct perf_cpu_map *cpus,
114 aggr_cp 109 aggr_cpu_id_get_t get_id,
115 void *d 110 void *data, bool needs_sort);
116 111
117 bool aggr_cpu_id__equal(const struct aggr_cpu_ 112 bool aggr_cpu_id__equal(const struct aggr_cpu_id *a, const struct aggr_cpu_id *b);
118 bool aggr_cpu_id__is_empty(const struct aggr_c 113 bool aggr_cpu_id__is_empty(const struct aggr_cpu_id *a);
119 struct aggr_cpu_id aggr_cpu_id__empty(void); 114 struct aggr_cpu_id aggr_cpu_id__empty(void);
120 115
121 116
122 /** 117 /**
123 * aggr_cpu_id__socket - Create an aggr_cpu_id 118 * aggr_cpu_id__socket - Create an aggr_cpu_id with the socket populated with
124 * the socket for cpu. The function signature 119 * the socket for cpu. The function signature is compatible with
125 * aggr_cpu_id_get_t. 120 * aggr_cpu_id_get_t.
126 */ 121 */
127 struct aggr_cpu_id aggr_cpu_id__socket(struct 122 struct aggr_cpu_id aggr_cpu_id__socket(struct perf_cpu cpu, void *data);
128 /** 123 /**
129 * aggr_cpu_id__die - Create an aggr_cpu_id wi 124 * aggr_cpu_id__die - Create an aggr_cpu_id with the die and socket populated
130 * with the die and socket for cpu. The functi 125 * with the die and socket for cpu. The function signature is compatible with
131 * aggr_cpu_id_get_t. 126 * aggr_cpu_id_get_t.
132 */ 127 */
133 struct aggr_cpu_id aggr_cpu_id__die(struct per 128 struct aggr_cpu_id aggr_cpu_id__die(struct perf_cpu cpu, void *data);
134 /** 129 /**
135 * aggr_cpu_id__cluster - Create an aggr_cpu_i !! 130 * aggr_cpu_id__core - Create an aggr_cpu_id with the core, die and socket
136 * populated with the cluster, die and socket !! 131 * populated with the core, die and socket for cpu. The function signature is
137 * is compatible with aggr_cpu_id_get_t. !! 132 * compatible with aggr_cpu_id_get_t.
138 */ <<
139 struct aggr_cpu_id aggr_cpu_id__cluster(struct <<
140 /** <<
141 * aggr_cpu_id__core - Create an aggr_cpu_id w <<
142 * socket populated with the core, die and soc <<
143 * signature is compatible with aggr_cpu_id_ge <<
144 */ 133 */
145 struct aggr_cpu_id aggr_cpu_id__core(struct pe 134 struct aggr_cpu_id aggr_cpu_id__core(struct perf_cpu cpu, void *data);
146 /** 135 /**
147 * aggr_cpu_id__core - Create an aggr_cpu_id w 136 * aggr_cpu_id__core - Create an aggr_cpu_id with the cpu, core, die and socket
148 * populated with the cpu, core, die and socke 137 * populated with the cpu, core, die and socket for cpu. The function signature
149 * is compatible with aggr_cpu_id_get_t. 138 * is compatible with aggr_cpu_id_get_t.
150 */ 139 */
151 struct aggr_cpu_id aggr_cpu_id__cpu(struct per 140 struct aggr_cpu_id aggr_cpu_id__cpu(struct perf_cpu cpu, void *data);
152 /** 141 /**
153 * aggr_cpu_id__node - Create an aggr_cpu_id w 142 * aggr_cpu_id__node - Create an aggr_cpu_id with the numa node populated for
154 * cpu. The function signature is compatible w 143 * cpu. The function signature is compatible with aggr_cpu_id_get_t.
155 */ 144 */
156 struct aggr_cpu_id aggr_cpu_id__node(struct pe 145 struct aggr_cpu_id aggr_cpu_id__node(struct perf_cpu cpu, void *data);
157 /** 146 /**
158 * aggr_cpu_id__global - Create an aggr_cpu_id 147 * aggr_cpu_id__global - Create an aggr_cpu_id for global aggregation.
159 * The function signature is compatible with a 148 * The function signature is compatible with aggr_cpu_id_get_t.
160 */ 149 */
161 struct aggr_cpu_id aggr_cpu_id__global(struct 150 struct aggr_cpu_id aggr_cpu_id__global(struct perf_cpu cpu, void *data);
162 #endif /* __PERF_CPUMAP_H */ 151 #endif /* __PERF_CPUMAP_H */
163 152
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