1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2a12b51c4SPaul Mackerras #ifndef __PERF_CPUMAP_H 3a12b51c4SPaul Mackerras #define __PERF_CPUMAP_H 4a12b51c4SPaul Mackerras 537be5858SArnaldo Carvalho de Melo #include <stdbool.h> 69ae7d335SArnaldo Carvalho de Melo #include <stdio.h> 7397721e0SJiri Olsa #include <perf/cpumap.h> 8c4d9d95fSIan Rogers #include <linux/refcount.h> 99ae7d335SArnaldo Carvalho de Melo 1049679da3SIan Rogers /** Identify where counts are aggregated, -1 implies not to aggregate. */ 11fa265e59SJames Clark struct aggr_cpu_id { 1249679da3SIan Rogers /** A value in the range 0 to number of threads. */ 13fa2edc07SNamhyung Kim int thread_idx; 1449679da3SIan Rogers /** The numa node X as read from /sys/devices/system/node/nodeX. */ 15fcd83a35SJames Clark int node; 1649679da3SIan Rogers /** 1749679da3SIan Rogers * The socket number as read from 1849679da3SIan Rogers * /sys/devices/system/cpu/cpuX/topology/physical_package_id. 1949679da3SIan Rogers */ 201a270cb6SJames Clark int socket; 2149679da3SIan Rogers /** The die id as read from /sys/devices/system/cpu/cpuX/topology/die_id. */ 22ba2ee166SJames Clark int die; 23*995ed074SK Prateek Nayak /** The cache level as read from /sys/devices/system/cpu/cpuX/cache/indexY/level */ 24*995ed074SK Prateek Nayak int cache_lvl; 25*995ed074SK Prateek Nayak /** 26*995ed074SK Prateek Nayak * The cache instance ID, which is the first CPU in the 27*995ed074SK Prateek Nayak * /sys/devices/system/cpu/cpuX/cache/indexY/shared_cpu_list 28*995ed074SK Prateek Nayak */ 29*995ed074SK Prateek Nayak int cache; 3049679da3SIan Rogers /** The core id as read from /sys/devices/system/cpu/cpuX/topology/core_id. */ 31b9933817SJames Clark int core; 3234794913SIan Rogers /** CPU aggregation, note there is one CPU for each SMT thread. */ 336d18804bSIan Rogers struct perf_cpu cpu; 34fa265e59SJames Clark }; 35fa265e59SJames Clark 3692aad5c3SIan Rogers /** A collection of aggr_cpu_id values, the "built" version is sorted and uniqued. */ 37cea6575fSJames Clark struct cpu_aggr_map { 38cea6575fSJames Clark refcount_t refcnt; 3992aad5c3SIan Rogers /** Number of valid entries. */ 40cea6575fSJames Clark int nr; 4192aad5c3SIan Rogers /** The entries. */ 42ff523295SJames Clark struct aggr_cpu_id map[]; 43cea6575fSJames Clark }; 44cea6575fSJames Clark 458945bef3SIan Rogers #define cpu_aggr_map__for_each_idx(idx, aggr_map) \ 468945bef3SIan Rogers for ((idx) = 0; (idx) < aggr_map->nr; (idx)++) 478945bef3SIan Rogers 4872932371SJiri Olsa struct perf_record_cpu_map_data; 497780c25bSDon Zickus 50b2f10cd4SIan Rogers bool perf_record_cpu_map_data__test_bit(int i, const struct perf_record_cpu_map_data *data); 51b2f10cd4SIan Rogers 52315c0a1fSJiri Olsa struct perf_cpu_map *perf_cpu_map__empty_new(int nr); 53cea6575fSJames Clark 54b2f10cd4SIan Rogers struct perf_cpu_map *cpu_map__new_data(const struct perf_record_cpu_map_data *data); 55f854839bSJiri Olsa size_t cpu_map__snprint(struct perf_cpu_map *map, char *buf, size_t size); 56f854839bSJiri Olsa size_t cpu_map__snprint_mask(struct perf_cpu_map *map, char *buf, size_t size); 57f854839bSJiri Olsa size_t cpu_map__fprintf(struct perf_cpu_map *map, FILE *fp); 58f854839bSJiri Olsa const struct perf_cpu_map *cpu_map__online(void); /* thread unsafe */ 595ac59a8aSStephane Eranian 607780c25bSDon Zickus int cpu__setup_cpunode_map(void); 617780c25bSDon Zickus 625ac76283SArnaldo Carvalho de Melo int cpu__max_node(void); 636d18804bSIan Rogers struct perf_cpu cpu__max_cpu(void); 646d18804bSIan Rogers struct perf_cpu cpu__max_present_cpu(void); 6537be5858SArnaldo Carvalho de Melo 6637be5858SArnaldo Carvalho de Melo /** 6737be5858SArnaldo Carvalho de Melo * cpu_map__is_dummy - Events associated with a pid, rather than a CPU, use a single dummy map with an entry of -1. 6837be5858SArnaldo Carvalho de Melo */ 6937be5858SArnaldo Carvalho de Melo static inline bool cpu_map__is_dummy(struct perf_cpu_map *cpus) 7037be5858SArnaldo Carvalho de Melo { 7144028699SIan Rogers return perf_cpu_map__nr(cpus) == 1 && perf_cpu_map__cpu(cpus, 0).cpu == -1; 7237be5858SArnaldo Carvalho de Melo } 7337be5858SArnaldo Carvalho de Melo 74194a3a20SIan Rogers /** 75194a3a20SIan Rogers * cpu__get_node - Returns the numa node X as read from 76194a3a20SIan Rogers * /sys/devices/system/node/nodeX for the given CPU. 77194a3a20SIan Rogers */ 786d18804bSIan Rogers int cpu__get_node(struct perf_cpu cpu); 794e90e5ccSIan Rogers /** 804e90e5ccSIan Rogers * cpu__get_socket_id - Returns the socket number as read from 814e90e5ccSIan Rogers * /sys/devices/system/cpu/cpuX/topology/physical_package_id for the given CPU. 824e90e5ccSIan Rogers */ 836d18804bSIan Rogers int cpu__get_socket_id(struct perf_cpu cpu); 844e90e5ccSIan Rogers /** 854e90e5ccSIan Rogers * cpu__get_die_id - Returns the die id as read from 864e90e5ccSIan Rogers * /sys/devices/system/cpu/cpuX/topology/die_id for the given CPU. 874e90e5ccSIan Rogers */ 886d18804bSIan Rogers int cpu__get_die_id(struct perf_cpu cpu); 894e90e5ccSIan Rogers /** 904e90e5ccSIan Rogers * cpu__get_core_id - Returns the core id as read from 914e90e5ccSIan Rogers * /sys/devices/system/cpu/cpuX/topology/core_id for the given CPU. 924e90e5ccSIan Rogers */ 936d18804bSIan Rogers int cpu__get_core_id(struct perf_cpu cpu); 944e90e5ccSIan Rogers 9592aad5c3SIan Rogers /** 9692aad5c3SIan Rogers * cpu_aggr_map__empty_new - Create a cpu_aggr_map of size nr with every entry 9792aad5c3SIan Rogers * being empty. 9892aad5c3SIan Rogers */ 9992aad5c3SIan Rogers struct cpu_aggr_map *cpu_aggr_map__empty_new(int nr); 10092aad5c3SIan Rogers 1016d18804bSIan Rogers typedef struct aggr_cpu_id (*aggr_cpu_id_get_t)(struct perf_cpu cpu, void *data); 1027780c25bSDon Zickus 1035f50e15cSIan Rogers /** 1045f50e15cSIan Rogers * cpu_aggr_map__new - Create a cpu_aggr_map with an aggr_cpu_id for each cpu in 1055f50e15cSIan Rogers * cpus. The aggr_cpu_id is created with 'get_id' that may have a data value 1065f50e15cSIan Rogers * passed to it. The cpu_aggr_map is sorted with duplicate values removed. 1075f50e15cSIan Rogers */ 1085f50e15cSIan Rogers struct cpu_aggr_map *cpu_aggr_map__new(const struct perf_cpu_map *cpus, 1095f50e15cSIan Rogers aggr_cpu_id_get_t get_id, 110505ac48bSNamhyung Kim void *data, bool needs_sort); 111e632aa69SJiri Olsa 1123ac23d19SIan Rogers bool aggr_cpu_id__equal(const struct aggr_cpu_id *a, const struct aggr_cpu_id *b); 11351b826faSIan Rogers bool aggr_cpu_id__is_empty(const struct aggr_cpu_id *a); 11451b826faSIan Rogers struct aggr_cpu_id aggr_cpu_id__empty(void); 115fa265e59SJames Clark 116973aeb3cSIan Rogers 117973aeb3cSIan Rogers /** 118973aeb3cSIan Rogers * aggr_cpu_id__socket - Create an aggr_cpu_id with the socket populated with 119973aeb3cSIan Rogers * the socket for cpu. The function signature is compatible with 120973aeb3cSIan Rogers * aggr_cpu_id_get_t. 121973aeb3cSIan Rogers */ 1226d18804bSIan Rogers struct aggr_cpu_id aggr_cpu_id__socket(struct perf_cpu cpu, void *data); 123973aeb3cSIan Rogers /** 124973aeb3cSIan Rogers * aggr_cpu_id__die - Create an aggr_cpu_id with the die and socket populated 125973aeb3cSIan Rogers * with the die and socket for cpu. The function signature is compatible with 126973aeb3cSIan Rogers * aggr_cpu_id_get_t. 127973aeb3cSIan Rogers */ 1286d18804bSIan Rogers struct aggr_cpu_id aggr_cpu_id__die(struct perf_cpu cpu, void *data); 129973aeb3cSIan Rogers /** 130973aeb3cSIan Rogers * aggr_cpu_id__core - Create an aggr_cpu_id with the core, die and socket 131973aeb3cSIan Rogers * populated with the core, die and socket for cpu. The function signature is 132973aeb3cSIan Rogers * compatible with aggr_cpu_id_get_t. 133973aeb3cSIan Rogers */ 1346d18804bSIan Rogers struct aggr_cpu_id aggr_cpu_id__core(struct perf_cpu cpu, void *data); 135973aeb3cSIan Rogers /** 13634794913SIan Rogers * aggr_cpu_id__core - Create an aggr_cpu_id with the cpu, core, die and socket 13734794913SIan Rogers * populated with the cpu, core, die and socket for cpu. The function signature 13834794913SIan Rogers * is compatible with aggr_cpu_id_get_t. 13934794913SIan Rogers */ 1406d18804bSIan Rogers struct aggr_cpu_id aggr_cpu_id__cpu(struct perf_cpu cpu, void *data); 14134794913SIan Rogers /** 142973aeb3cSIan Rogers * aggr_cpu_id__node - Create an aggr_cpu_id with the numa node populated for 143973aeb3cSIan Rogers * cpu. The function signature is compatible with aggr_cpu_id_get_t. 144973aeb3cSIan Rogers */ 1456d18804bSIan Rogers struct aggr_cpu_id aggr_cpu_id__node(struct perf_cpu cpu, void *data); 146375369abSNamhyung Kim /** 147375369abSNamhyung Kim * aggr_cpu_id__global - Create an aggr_cpu_id for global aggregation. 148375369abSNamhyung Kim * The function signature is compatible with aggr_cpu_id_get_t. 149375369abSNamhyung Kim */ 150375369abSNamhyung Kim struct aggr_cpu_id aggr_cpu_id__global(struct perf_cpu cpu, void *data); 151a12b51c4SPaul Mackerras #endif /* __PERF_CPUMAP_H */ 152