Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) #include "cpumap.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) #include "debug.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) #include "env.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) #include "util/header.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #include <linux/ctype.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <linux/zalloc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include "bpf-event.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include "cgroup.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <sys/utsname.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <bpf/libbpf.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <stdlib.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) struct perf_env perf_env;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) void perf_env__insert_bpf_prog_info(struct perf_env *env,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 				    struct bpf_prog_info_node *info_node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	__u32 prog_id = info_node->info_linear->info.id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	struct bpf_prog_info_node *node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	struct rb_node *parent = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	struct rb_node **p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	down_write(&env->bpf_progs.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	p = &env->bpf_progs.infos.rb_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	while (*p != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 		parent = *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 		node = rb_entry(parent, struct bpf_prog_info_node, rb_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 		if (prog_id < node->info_linear->info.id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 			p = &(*p)->rb_left;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 		} else if (prog_id > node->info_linear->info.id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 			p = &(*p)->rb_right;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 		} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 			pr_debug("duplicated bpf prog info %u\n", prog_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 			goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	rb_link_node(&info_node->rb_node, parent, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	rb_insert_color(&info_node->rb_node, &env->bpf_progs.infos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	env->bpf_progs.infos_cnt++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	up_write(&env->bpf_progs.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 							__u32 prog_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	struct bpf_prog_info_node *node = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	struct rb_node *n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	down_read(&env->bpf_progs.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	n = env->bpf_progs.infos.rb_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	while (n) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 		node = rb_entry(n, struct bpf_prog_info_node, rb_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		if (prog_id < node->info_linear->info.id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 			n = n->rb_left;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 		else if (prog_id > node->info_linear->info.id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 			n = n->rb_right;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 			goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	node = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	up_read(&env->bpf_progs.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	return node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) bool perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	struct rb_node *parent = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	__u32 btf_id = btf_node->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	struct btf_node *node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	struct rb_node **p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	bool ret = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	down_write(&env->bpf_progs.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	p = &env->bpf_progs.btfs.rb_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	while (*p != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 		parent = *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 		node = rb_entry(parent, struct btf_node, rb_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 		if (btf_id < node->id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 			p = &(*p)->rb_left;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 		} else if (btf_id > node->id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 			p = &(*p)->rb_right;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 		} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 			pr_debug("duplicated btf %u\n", btf_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 			ret = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 			goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	rb_link_node(&btf_node->rb_node, parent, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	rb_insert_color(&btf_node->rb_node, &env->bpf_progs.btfs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	env->bpf_progs.btfs_cnt++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	up_write(&env->bpf_progs.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	struct btf_node *node = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	struct rb_node *n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	down_read(&env->bpf_progs.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	n = env->bpf_progs.btfs.rb_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	while (n) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 		node = rb_entry(n, struct btf_node, rb_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		if (btf_id < node->id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 			n = n->rb_left;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 		else if (btf_id > node->id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 			n = n->rb_right;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 			goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	node = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	up_read(&env->bpf_progs.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	return node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) /* purge data in bpf_progs.infos tree */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static void perf_env__purge_bpf(struct perf_env *env)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	struct rb_root *root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	struct rb_node *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	down_write(&env->bpf_progs.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	root = &env->bpf_progs.infos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	next = rb_first(root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	while (next) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 		struct bpf_prog_info_node *node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 		node = rb_entry(next, struct bpf_prog_info_node, rb_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		next = rb_next(&node->rb_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		rb_erase(&node->rb_node, root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 		free(node->info_linear);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 		free(node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	env->bpf_progs.infos_cnt = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	root = &env->bpf_progs.btfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	next = rb_first(root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	while (next) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		struct btf_node *node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		node = rb_entry(next, struct btf_node, rb_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		next = rb_next(&node->rb_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 		rb_erase(&node->rb_node, root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 		free(node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	env->bpf_progs.btfs_cnt = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	up_write(&env->bpf_progs.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) void perf_env__exit(struct perf_env *env)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	perf_env__purge_bpf(env);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	perf_env__purge_cgroups(env);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	zfree(&env->hostname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	zfree(&env->os_release);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	zfree(&env->version);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	zfree(&env->arch);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	zfree(&env->cpu_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	zfree(&env->cpuid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	zfree(&env->cmdline);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	zfree(&env->cmdline_argv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	zfree(&env->sibling_dies);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	zfree(&env->sibling_cores);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	zfree(&env->sibling_threads);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	zfree(&env->pmu_mappings);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	zfree(&env->cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	zfree(&env->cpu_pmu_caps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	zfree(&env->numa_map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	for (i = 0; i < env->nr_numa_nodes; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		perf_cpu_map__put(env->numa_nodes[i].map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	zfree(&env->numa_nodes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	for (i = 0; i < env->caches_cnt; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		cpu_cache_level__free(&env->caches[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	zfree(&env->caches);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	for (i = 0; i < env->nr_memory_nodes; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 		zfree(&env->memory_nodes[i].set);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	zfree(&env->memory_nodes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) void perf_env__init(struct perf_env *env)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	env->bpf_progs.infos = RB_ROOT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	env->bpf_progs.btfs = RB_ROOT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	init_rwsem(&env->bpf_progs.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	/* do not include NULL termination */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	env->cmdline_argv = calloc(argc, sizeof(char *));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	if (env->cmdline_argv == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 		goto out_enomem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	 * Must copy argv contents because it gets moved around during option
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	 * parsing:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	for (i = 0; i < argc ; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 		env->cmdline_argv[i] = argv[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 		if (env->cmdline_argv[i] == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 			goto out_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	env->nr_cmdline = argc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) out_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	zfree(&env->cmdline_argv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) out_enomem:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) int perf_env__read_cpu_topology_map(struct perf_env *env)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	int cpu, nr_cpus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	if (env->cpu != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	if (env->nr_cpus_avail == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		env->nr_cpus_avail = cpu__max_present_cpu();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	nr_cpus = env->nr_cpus_avail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	if (nr_cpus == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	env->cpu = calloc(nr_cpus, sizeof(env->cpu[0]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	if (env->cpu == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	for (cpu = 0; cpu < nr_cpus; ++cpu) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 		env->cpu[cpu].core_id	= cpu_map__get_core_id(cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 		env->cpu[cpu].socket_id	= cpu_map__get_socket_id(cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 		env->cpu[cpu].die_id	= cpu_map__get_die_id(cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	env->nr_cpus_avail = nr_cpus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) int perf_env__read_cpuid(struct perf_env *env)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	char cpuid[128];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	int err = get_cpuid(cpuid, sizeof(cpuid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	free(env->cpuid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	env->cpuid = strdup(cpuid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	if (env->cpuid == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 		return ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) static int perf_env__read_arch(struct perf_env *env)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	struct utsname uts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	if (env->arch)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	if (!uname(&uts))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 		env->arch = strdup(uts.machine);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	return env->arch ? 0 : -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) static int perf_env__read_nr_cpus_avail(struct perf_env *env)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	if (env->nr_cpus_avail == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 		env->nr_cpus_avail = cpu__max_present_cpu();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 	return env->nr_cpus_avail ? 0 : -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) const char *perf_env__raw_arch(struct perf_env *env)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	return env && !perf_env__read_arch(env) ? env->arch : "unknown";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) int perf_env__nr_cpus_avail(struct perf_env *env)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	return env && !perf_env__read_nr_cpus_avail(env) ? env->nr_cpus_avail : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) void cpu_cache_level__free(struct cpu_cache_level *cache)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 	zfree(&cache->type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	zfree(&cache->map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	zfree(&cache->size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)  * Return architecture name in a normalized form.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)  * The conversion logic comes from the Makefile.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) static const char *normalize_arch(char *arch)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 	if (!strcmp(arch, "x86_64"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 		return "x86";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 	if (arch[0] == 'i' && arch[2] == '8' && arch[3] == '6')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 		return "x86";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 	if (!strcmp(arch, "sun4u") || !strncmp(arch, "sparc", 5))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 		return "sparc";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 	if (!strcmp(arch, "aarch64") || !strcmp(arch, "arm64"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 		return "arm64";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	if (!strncmp(arch, "arm", 3) || !strcmp(arch, "sa110"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 		return "arm";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	if (!strncmp(arch, "s390", 4))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 		return "s390";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	if (!strncmp(arch, "parisc", 6))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 		return "parisc";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	if (!strncmp(arch, "powerpc", 7) || !strncmp(arch, "ppc", 3))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 		return "powerpc";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 	if (!strncmp(arch, "mips", 4))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 		return "mips";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 	if (!strncmp(arch, "sh", 2) && isdigit(arch[2]))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 		return "sh";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 	return arch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) const char *perf_env__arch(struct perf_env *env)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 	char *arch_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 	if (!env || !env->arch) { /* Assume local operation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 		static struct utsname uts = { .machine[0] = '\0', };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 		if (uts.machine[0] == '\0' && uname(&uts) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 			return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 		arch_name = uts.machine;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 	} else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 		arch_name = env->arch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 	return normalize_arch(arch_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) int perf_env__numa_node(struct perf_env *env, int cpu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 	if (!env->nr_numa_map) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 		struct numa_node *nn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 		int i, nr = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 		for (i = 0; i < env->nr_numa_nodes; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 			nn = &env->numa_nodes[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 			nr = max(nr, perf_cpu_map__max(nn->map));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 		nr++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 		 * We initialize the numa_map array to prepare
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 		 * it for missing cpus, which return node -1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 		env->numa_map = malloc(nr * sizeof(int));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 		if (!env->numa_map)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 			return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 		for (i = 0; i < nr; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 			env->numa_map[i] = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 		env->nr_numa_map = nr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 		for (i = 0; i < env->nr_numa_nodes; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 			int tmp, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 			nn = &env->numa_nodes[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 			perf_cpu_map__for_each_cpu(j, tmp, nn->map)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 				env->numa_map[j] = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 	return cpu >= 0 && cpu < env->nr_numa_map ? env->numa_map[cpu] : -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) }