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Commit | Line | Data |
---|---|---|
405d51ed | 1 | |
d34b7f1b KZ |
2 | #include <sys/utsname.h> |
3 | #include <sys/personality.h> | |
4 | ||
27ffec83 KZ |
5 | #if defined(HAVE_LIBRTAS) |
6 | # include <librtas.h> | |
7 | #endif | |
8 | ||
095be2c2 | 9 | #include "lscpu.h" |
450cb0b7 | 10 | |
0796923a | 11 | #include "fileutils.h" |
0b538002 | 12 | #include "c_strtod.h" |
0796923a | 13 | |
5a6da72c KZ |
14 | /* Lookup a pattern and get the value for format "<pattern> : <key>" |
15 | */ | |
909d3575 | 16 | int lookup(char *line, char *pattern, char **value) |
5a6da72c KZ |
17 | { |
18 | char *p, *v; | |
19 | int len = strlen(pattern); | |
20 | ||
21 | /* don't re-fill already found tags, first one wins */ | |
22 | if (!*line || *value) | |
23 | return 0; | |
24 | /* pattern */ | |
25 | if (strncmp(line, pattern, len)) | |
26 | return 0; | |
27 | /* white spaces */ | |
28 | for (p = line + len; isspace(*p); p++); | |
29 | ||
30 | /* separator */ | |
31 | if (*p != ':') | |
32 | return 0; | |
33 | /* white spaces */ | |
34 | for (++p; isspace(*p); p++); | |
35 | ||
36 | /* value */ | |
37 | if (!*p) | |
38 | return 0; | |
39 | v = p; | |
40 | ||
41 | /* end of value */ | |
42 | len = strlen(line) - 1; | |
43 | for (p = line + len; isspace(*(p-1)); p--); | |
44 | *p = '\0'; | |
45 | ||
46 | *value = xstrdup(v); | |
47 | return 1; | |
48 | } | |
49 | ||
71464ded | 50 | struct lscpu_cputype *lscpu_new_cputype(void) |
405d51ed KZ |
51 | { |
52 | struct lscpu_cputype *ct; | |
53 | ||
54 | ct = xcalloc(1, sizeof(struct lscpu_cputype)); | |
55 | ct->refcount = 1; | |
91eef60c KZ |
56 | ct->dispatching = -1; |
57 | ct->freqboost = -1; | |
405d51ed | 58 | |
450cb0b7 | 59 | DBG(TYPE, ul_debugobj(ct, "alloc")); |
405d51ed KZ |
60 | return ct; |
61 | } | |
62 | ||
71464ded KZ |
63 | void lscpu_ref_cputype(struct lscpu_cputype *ct) |
64 | { | |
f5d13532 | 65 | if (ct) { |
71464ded | 66 | ct->refcount++; |
ee0fabda | 67 | DBG(TYPE, ul_debugobj(ct, ">>> ref %d", ct->refcount)); |
f5d13532 | 68 | } |
71464ded KZ |
69 | } |
70 | ||
71 | void lscpu_unref_cputype(struct lscpu_cputype *ct) | |
72 | { | |
73 | if (!ct) | |
74 | return; | |
75 | ||
ff7449d2 | 76 | /*DBG(TYPE, ul_debugobj(ct, ">>> unref %d", ct->refcount - 1));*/ |
f5d13532 | 77 | |
71464ded | 78 | if (--ct->refcount <= 0) { |
ff7449d2 | 79 | DBG(TYPE, ul_debugobj(ct, " freeing %s/%s", ct->vendor, ct->model)); |
f669523b | 80 | lscpu_cputype_free_topology(ct); |
b152ec54 | 81 | free(ct->vendor); |
d4cb6a03 | 82 | free(ct->bios_vendor); |
b152ec54 KZ |
83 | free(ct->machinetype); /* s390 */ |
84 | free(ct->family); | |
85 | free(ct->model); | |
86 | free(ct->modelname); | |
d4cb6a03 | 87 | free(ct->bios_modelname); |
4cae2104 | 88 | free(ct->bios_family); |
b152ec54 | 89 | free(ct->revision); /* alternative for model (ppc) */ |
b152ec54 KZ |
90 | free(ct->stepping); |
91 | free(ct->bogomips); | |
92 | free(ct->flags); | |
93 | free(ct->mtid); /* maximum thread id (s390) */ | |
94 | free(ct->addrsz); /* address sizes */ | |
778254d9 KZ |
95 | free(ct->static_mhz); |
96 | free(ct->dynamic_mhz); | |
71464ded KZ |
97 | free(ct); |
98 | } | |
99 | } | |
100 | ||
d234a381 KZ |
101 | struct lscpu_cputype *lscpu_cputype_get_default(struct lscpu_cxt *cxt) |
102 | { | |
103 | return cxt->cputypes ? cxt->cputypes[0] : NULL; | |
104 | } | |
855bab2a KZ |
105 | |
106 | #define match(astr, bstr) \ | |
107 | ((!astr && !bstr) || (astr && bstr && strcmp(astr, bstr) == 0)) | |
108 | ||
f5d13532 KZ |
109 | struct lscpu_cputype *lscpu_add_cputype(struct lscpu_cxt *cxt, struct lscpu_cputype *ct) |
110 | { | |
d234a381 | 111 | DBG(TYPE, ul_debugobj(ct, "add new")); |
64d6d400 TW |
112 | cxt->cputypes = xreallocarray(cxt->cputypes, cxt->ncputypes + 1, |
113 | sizeof(struct lscpu_cputype *)); | |
855bab2a KZ |
114 | cxt->cputypes[cxt->ncputypes] = ct; |
115 | cxt->ncputypes++; | |
116 | lscpu_ref_cputype(ct); | |
117 | return ct; | |
118 | } | |
119 | ||
f495abb7 KZ |
120 | static void fprintf_cputypes(FILE *f, struct lscpu_cxt *cxt) |
121 | { | |
122 | size_t i; | |
123 | ||
124 | for (i = 0; i < cxt->ncputypes; i++) { | |
125 | struct lscpu_cputype *ct = cxt->cputypes[i]; | |
126 | ||
127 | fprintf(f, "\n vendor: %s\n", ct->vendor); | |
128 | fprintf(f, " machinetype: %s\n", ct->machinetype); | |
129 | fprintf(f, " family: %s\n", ct->family); | |
130 | fprintf(f, " model: %s\n", ct->model); | |
131 | fprintf(f, " modelname: %s\n", ct->modelname); | |
132 | fprintf(f, " revision: %s\n", ct->revision); | |
133 | fprintf(f, " stepping: %s\n", ct->stepping); | |
134 | fprintf(f, " mtid: %s\n", ct->mtid); | |
135 | fprintf(f, " addrsz: %s\n", ct->addrsz); | |
136 | } | |
137 | } | |
f5d13532 KZ |
138 | |
139 | enum { | |
140 | CPUINFO_LINE_UNKNOWN, /* unknown line */ | |
141 | CPUINFO_LINE_CPUTYPE, /* line found in type_patterns[] */ | |
142 | CPUINFO_LINE_CPU, /* line found in cpu_patterns[] */ | |
143 | CPUINFO_LINE_CACHE /* line found in cache_pattern[] */ | |
144 | }; | |
145 | ||
cbf8f129 KZ |
146 | /* Describes /proc/cpuinfo fields */ |
147 | struct cpuinfo_pattern { | |
148 | int id; /* field ID */ | |
f5d13532 | 149 | int domain; /* CPUINFO_LINE_* */ |
cbf8f129 KZ |
150 | const char *pattern; /* field name as used in /proc/cpuinfo */ |
151 | size_t offset; /* offset in lscpu_cputype or lscpu_cpu struct */ | |
152 | }; | |
153 | ||
154 | /* field identifiers (field name may be different on different archs) */ | |
155 | enum { | |
156 | PAT_ADDRESS_SIZES, | |
cc94324e KZ |
157 | PAT_BOGOMIPS, /* global */ |
158 | PAT_BOGOMIPS_CPU, /* per-cpu */ | |
cbf8f129 KZ |
159 | PAT_CPU, |
160 | PAT_FAMILY, | |
161 | PAT_FEATURES, | |
162 | PAT_FLAGS, | |
163 | PAT_IMPLEMENTER, | |
164 | PAT_MAX_THREAD_ID, | |
165 | PAT_MHZ, | |
166 | PAT_MHZ_DYNAMIC, | |
167 | PAT_MHZ_STATIC, | |
168 | PAT_MODEL, | |
169 | PAT_MODEL_NAME, | |
170 | PAT_PART, | |
171 | PAT_PROCESSOR, | |
172 | PAT_REVISION, | |
173 | PAT_STEPPING, | |
174 | PAT_TYPE, | |
175 | PAT_VARIANT, | |
176 | PAT_VENDOR, | |
eaee3132 XR |
177 | PAT_CACHE, |
178 | PAT_ISA, | |
329ec35f KZ |
179 | }; |
180 | ||
cbf8f129 KZ |
181 | /* |
182 | * /proc/cpuinfo to lscpu_cputype conversion | |
183 | */ | |
184 | #define DEF_PAT_CPUTYPE(_str, _id, _member) \ | |
329ec35f | 185 | { \ |
cbf8f129 | 186 | .id = (_id), \ |
f5d13532 | 187 | .domain = CPUINFO_LINE_CPUTYPE, \ |
329ec35f | 188 | .pattern = (_str), \ |
cbf8f129 | 189 | .offset = offsetof(struct lscpu_cputype, _member), \ |
329ec35f KZ |
190 | } |
191 | ||
cbf8f129 | 192 | static const struct cpuinfo_pattern type_patterns[] = |
329ec35f | 193 | { |
cbf8f129 | 194 | /* Sort by fields name! */ |
0a0af616 | 195 | DEF_PAT_CPUTYPE( "ASEs implemented", PAT_FLAGS, flags), /* mips */ |
59370266 | 196 | DEF_PAT_CPUTYPE( "Address Sizes", PAT_ADDRESS_SIZES, addrsz),/* loongarch */ |
cbf8f129 | 197 | DEF_PAT_CPUTYPE( "BogoMIPS", PAT_BOGOMIPS, bogomips), /* aarch64 */ |
59370266 XR |
198 | DEF_PAT_CPUTYPE( "CPU Family", PAT_FAMILY, family), /* loongarch */ |
199 | DEF_PAT_CPUTYPE( "CPU Revision", PAT_REVISION, revision), /* loongarch */ | |
cbf8f129 KZ |
200 | DEF_PAT_CPUTYPE( "CPU implementer", PAT_IMPLEMENTER,vendor), /* ARM and aarch64 */ |
201 | DEF_PAT_CPUTYPE( "CPU part", PAT_PART, model), /* ARM and aarch64 */ | |
202 | DEF_PAT_CPUTYPE( "CPU revision", PAT_REVISION, revision), /* aarch64 */ | |
203 | DEF_PAT_CPUTYPE( "CPU variant", PAT_VARIANT, stepping), /* aarch64 */ | |
204 | DEF_PAT_CPUTYPE( "Features", PAT_FEATURES, flags), /* aarch64 */ | |
eaee3132 | 205 | DEF_PAT_CPUTYPE( "ISA", PAT_ISA, isa), /* loongarch */ |
59370266 | 206 | DEF_PAT_CPUTYPE( "Model Name", PAT_MODEL_NAME, modelname), /* loongarch */ |
cbf8f129 | 207 | DEF_PAT_CPUTYPE( "address sizes", PAT_ADDRESS_SIZES, addrsz),/* x86 */ |
cbf8f129 | 208 | DEF_PAT_CPUTYPE( "bogomips per cpu", PAT_BOGOMIPS, bogomips), /* s390 */ |
d234a381 | 209 | DEF_PAT_CPUTYPE( "cpu", PAT_CPU, modelname), /* ppc, sparc */ |
ee0fabda | 210 | DEF_PAT_CPUTYPE( "cpu family", PAT_FAMILY, family), |
0a0af616 | 211 | DEF_PAT_CPUTYPE( "cpu model", PAT_MODEL, model), /* mips */ |
cbf8f129 KZ |
212 | DEF_PAT_CPUTYPE( "family", PAT_FAMILY, family), |
213 | DEF_PAT_CPUTYPE( "features", PAT_FEATURES, flags), /* s390 */ | |
214 | DEF_PAT_CPUTYPE( "flags", PAT_FLAGS, flags), /* x86 */ | |
215 | DEF_PAT_CPUTYPE( "max thread id", PAT_MAX_THREAD_ID, mtid), /* s390 */ | |
cbf8f129 | 216 | DEF_PAT_CPUTYPE( "model", PAT_MODEL, model), |
ee0fabda | 217 | DEF_PAT_CPUTYPE( "model name", PAT_MODEL_NAME, modelname), |
cbf8f129 KZ |
218 | DEF_PAT_CPUTYPE( "revision", PAT_REVISION, revision), |
219 | DEF_PAT_CPUTYPE( "stepping", PAT_STEPPING, stepping), | |
220 | DEF_PAT_CPUTYPE( "type", PAT_TYPE, flags), /* sparc64 */ | |
221 | DEF_PAT_CPUTYPE( "vendor", PAT_VENDOR, vendor), | |
855bab2a | 222 | DEF_PAT_CPUTYPE( "vendor_id", PAT_VENDOR, vendor), /* s390 */ |
cbf8f129 KZ |
223 | }; |
224 | ||
225 | /* | |
226 | * /proc/cpuinfo to lscpu_cpu conversion | |
227 | */ | |
228 | #define DEF_PAT_CPU(_str, _id, _member) \ | |
229 | { \ | |
230 | .id = (_id), \ | |
f5d13532 | 231 | .domain = CPUINFO_LINE_CPU, \ |
cbf8f129 KZ |
232 | .pattern = (_str), \ |
233 | .offset = offsetof(struct lscpu_cpu, _member), \ | |
234 | } | |
235 | ||
236 | static const struct cpuinfo_pattern cpu_patterns[] = | |
237 | { | |
238 | /* Sort by fields name! */ | |
59370266 | 239 | DEF_PAT_CPU( "CPU MHz", PAT_MHZ, mhz), /* loongarch */ |
cc94324e | 240 | DEF_PAT_CPU( "bogomips", PAT_BOGOMIPS_CPU, bogomips), |
0a0af616 | 241 | DEF_PAT_CPU( "cpu MHz", PAT_MHZ, mhz), |
cc94324e | 242 | DEF_PAT_CPU( "cpu MHz dynamic", PAT_MHZ_DYNAMIC, dynamic_mhz), /* s390 */ |
0a0af616 | 243 | DEF_PAT_CPU( "cpu MHz static", PAT_MHZ_STATIC, static_mhz), /* s390 */ |
cc94324e | 244 | DEF_PAT_CPU( "cpu number", PAT_PROCESSOR, logical_id), /* s390 */ |
0a0af616 | 245 | DEF_PAT_CPU( "processor", PAT_PROCESSOR, logical_id), |
f5d13532 | 246 | |
329ec35f KZ |
247 | }; |
248 | ||
25c2a72c KZ |
249 | /* |
250 | * /proc/cpuinfo to lscpu_cache conversion | |
251 | */ | |
252 | #define DEF_PAT_CACHE(_str, _id) \ | |
253 | { \ | |
254 | .id = (_id), \ | |
255 | .domain = CPUINFO_LINE_CACHE, \ | |
256 | .pattern = (_str) \ | |
257 | } | |
258 | ||
259 | static const struct cpuinfo_pattern cache_patterns[] = | |
260 | { | |
261 | /* Sort by fields name! */ | |
0a0af616 | 262 | DEF_PAT_CACHE("cache", PAT_CACHE), |
25c2a72c KZ |
263 | }; |
264 | ||
329ec35f KZ |
265 | #define CPUTYPE_PATTERN_BUFSZ 32 |
266 | ||
267 | static int cmp_pattern(const void *a0, const void *b0) | |
268 | { | |
cbf8f129 KZ |
269 | const struct cpuinfo_pattern |
270 | *a = (const struct cpuinfo_pattern *) a0, | |
271 | *b = (const struct cpuinfo_pattern *) b0; | |
329ec35f KZ |
272 | return strcmp(a->pattern, b->pattern); |
273 | } | |
274 | ||
f5d13532 KZ |
275 | struct cpuinfo_parser { |
276 | struct lscpu_cxt *cxt; | |
277 | struct lscpu_cpu *curr_cpu; | |
278 | struct lscpu_cputype *curr_type; | |
f495abb7 | 279 | unsigned int curr_type_added : 1; |
f5d13532 KZ |
280 | }; |
281 | ||
ee0fabda KZ |
282 | static int is_different_cputype(struct lscpu_cputype *ct, size_t offset, const char *value) |
283 | { | |
284 | switch (offset) { | |
285 | case offsetof(struct lscpu_cputype, vendor): | |
286 | return ct->vendor && value && strcmp(ct->vendor, value) != 0; | |
287 | case offsetof(struct lscpu_cputype, model): | |
288 | return ct->model && value && strcmp(ct->model, value) != 0; | |
289 | case offsetof(struct lscpu_cputype, modelname): | |
290 | return ct->modelname && value && strcmp(ct->modelname, value) != 0; | |
291 | case offsetof(struct lscpu_cputype, stepping): | |
292 | return ct->stepping && value && strcmp(ct->stepping, value) != 0; | |
293 | } | |
294 | return 0; | |
295 | } | |
296 | ||
0e85613e | 297 | /* canonicalize @str -- remove number at the end return the |
f5d13532 KZ |
298 | * number by @keynum. This is usable for example for "processor 5" or "cache1" |
299 | * cpuinfo lines */ | |
300 | static char *key_cleanup(char *str, int *keynum) | |
301 | { | |
302 | size_t sz = rtrim_whitespace((unsigned char *)str); | |
303 | size_t i; | |
304 | ||
305 | if (!sz) | |
306 | return str; | |
f5d13532 | 307 | |
25c2a72c KZ |
308 | for (i = sz; i > 0; i--) { |
309 | if (!isdigit(str[i - 1])) | |
310 | break; | |
311 | } | |
312 | ||
313 | if (i < sz) { | |
24c17c62 KZ |
314 | char *end = NULL, *p = str + i; |
315 | int n; | |
316 | ||
317 | errno = 0; | |
318 | n = strtol(p, &end, 10); | |
319 | if (errno || !end || end == p) | |
320 | return str; | |
321 | ||
322 | *keynum = n; | |
f5d13532 | 323 | str[i] = '\0'; |
25c2a72c | 324 | rtrim_whitespace((unsigned char *)str); |
f5d13532 KZ |
325 | } |
326 | return str; | |
327 | } | |
328 | ||
329 | static const struct cpuinfo_pattern *cpuinfo_parse_line(char *str, char **value, int *keynum) | |
329ec35f | 330 | { |
6e7a4ab0 | 331 | struct cpuinfo_pattern key = { .id = 0 }, *pat; |
f5d13532 KZ |
332 | char *p, *v; |
333 | char buf[CPUTYPE_PATTERN_BUFSZ] = { 0 }; | |
329ec35f | 334 | |
d234a381 | 335 | DBG(GATHER, ul_debug("parse \"%s\"", str)); |
329ec35f KZ |
336 | |
337 | if (!str || !*str) | |
f5d13532 KZ |
338 | return NULL; |
339 | p = (char *) skip_blank(str); | |
329ec35f | 340 | if (!p || !*p) |
f5d13532 | 341 | return NULL; |
329ec35f KZ |
342 | |
343 | v = strchr(p, ':'); | |
344 | if (!v || !*v) | |
f5d13532 | 345 | return NULL; |
329ec35f | 346 | |
cbf8f129 | 347 | /* prepare name of the field */ |
329ec35f KZ |
348 | xstrncpy(buf, p, sizeof(buf)); |
349 | buf[v - p] = '\0'; | |
350 | v++; | |
351 | ||
801b125f | 352 | /* prepare value */ |
f5d13532 | 353 | v = (char *) skip_space(v); |
801b125f | 354 | if (!v || !*v) |
f5d13532 | 355 | return NULL; |
801b125f | 356 | |
f5d13532 | 357 | key.pattern = key_cleanup(buf, keynum); |
f5d13532 KZ |
358 | /* CPU-type */ |
359 | if ((pat = bsearch(&key, type_patterns, | |
cbf8f129 KZ |
360 | ARRAY_SIZE(type_patterns), |
361 | sizeof(struct cpuinfo_pattern), | |
f5d13532 KZ |
362 | cmp_pattern))) |
363 | goto found; | |
364 | ||
365 | /* CPU */ | |
366 | if ((pat = bsearch(&key, cpu_patterns, | |
cbf8f129 KZ |
367 | ARRAY_SIZE(cpu_patterns), |
368 | sizeof(struct cpuinfo_pattern), | |
f5d13532 KZ |
369 | cmp_pattern))) |
370 | goto found; | |
371 | ||
25c2a72c KZ |
372 | /* CACHE */ |
373 | if ((pat = bsearch(&key, cache_patterns, | |
374 | ARRAY_SIZE(cache_patterns), | |
375 | sizeof(struct cpuinfo_pattern), | |
376 | cmp_pattern))) | |
377 | goto found; | |
378 | ||
f5d13532 KZ |
379 | return NULL; |
380 | found: | |
381 | rtrim_whitespace((unsigned char *) v); | |
382 | *value = v; | |
383 | return pat; | |
329ec35f KZ |
384 | } |
385 | ||
25c2a72c KZ |
386 | /* Parse extra cache lines contained within /proc/cpuinfo but which are not |
387 | * part of the cache topology information within the sysfs filesystem. This is | |
388 | * true for all shared caches on e.g. s390. When there are layers of | |
389 | * hypervisors in between it is not knows which CPUs share which caches. | |
390 | * Therefore information about shared caches is only available in | |
391 | * /proc/cpuinfo. Format is: | |
392 | * | |
393 | * cache<nr> : level=<lvl> type=<type> scope=<scope> size=<size> line_size=<lsz> associativity=<as> | |
394 | * | |
395 | * the cache<nr> part is parsed in cpuinfo_parse_line, in this function parses part after ":". | |
396 | */ | |
397 | static int cpuinfo_parse_cache(struct lscpu_cxt *cxt, int keynum, char *data) | |
398 | { | |
399 | struct lscpu_cache *cache; | |
400 | long long size; | |
401 | char *p, type; | |
402 | int level; | |
ddc92e39 | 403 | unsigned int line_size, associativity; |
25c2a72c KZ |
404 | |
405 | DBG(GATHER, ul_debugobj(cxt, " parse cpuinfo cache '%s'", data)); | |
406 | ||
407 | p = strstr(data, "scope=") + 6; | |
408 | /* Skip private caches, also present in sysfs */ | |
409 | if (!p || strncmp(p, "Private", 7) == 0) | |
410 | return 0; | |
411 | p = strstr(data, "level="); | |
412 | if (!p || sscanf(p, "level=%d", &level) != 1) | |
413 | return 0; | |
414 | p = strstr(data, "type=") + 5; | |
415 | if (!p || !*p) | |
416 | return 0; | |
417 | type = 0; | |
418 | if (strncmp(p, "Data", 4) == 0) | |
419 | type = 'd'; | |
420 | else if (strncmp(p, "Instruction", 11) == 0) | |
421 | type = 'i'; | |
422 | else if (strncmp(p, "Unified", 7) == 0) | |
423 | type = 'u'; | |
424 | p = strstr(data, "size="); | |
425 | if (!p || sscanf(p, "size=%lld", &size) != 1) | |
ddc92e39 KZ |
426 | return 0; |
427 | ||
428 | p = strstr(data, "line_size="); | |
429 | if (!p || sscanf(p, "line_size=%u", &line_size) != 1) | |
430 | return 0; | |
431 | ||
432 | p = strstr(data, "associativity="); | |
433 | if (!p || sscanf(p, "associativity=%u", &associativity) != 1) | |
434 | return 0; | |
25c2a72c KZ |
435 | |
436 | cxt->necaches++; | |
64d6d400 TW |
437 | cxt->ecaches = xreallocarray(cxt->ecaches, |
438 | cxt->necaches, sizeof(struct lscpu_cache)); | |
25c2a72c KZ |
439 | cache = &cxt->ecaches[cxt->necaches - 1]; |
440 | memset(cache, 0 , sizeof(*cache)); | |
441 | ||
442 | if (type == 'i' || type == 'd') | |
443 | xasprintf(&cache->name, "L%d%c", level, type); | |
444 | else | |
445 | xasprintf(&cache->name, "L%d", level); | |
446 | ||
447 | cache->nth = keynum; | |
448 | cache->level = level; | |
449 | cache->size = size * 1024; | |
ddc92e39 KZ |
450 | cache->ways_of_associativity = associativity; |
451 | cache->coherency_line_size = line_size; | |
452 | /* Number of sets for s390. For safety, just check divide by zero */ | |
453 | cache->number_of_sets = line_size ? (cache->size / line_size): 0; | |
454 | cache->number_of_sets = associativity ? (cache->number_of_sets / associativity) : 0; | |
25c2a72c KZ |
455 | |
456 | cache->type = type == 'i' ? xstrdup("Instruction") : | |
457 | type == 'd' ? xstrdup("Data") : | |
458 | type == 'u' ? xstrdup("Unified") : NULL; | |
459 | return 1; | |
460 | } | |
461 | ||
cbf8f129 | 462 | int lscpu_read_cpuinfo(struct lscpu_cxt *cxt) |
405d51ed | 463 | { |
329ec35f | 464 | FILE *fp; |
2681f560 KR |
465 | /* Used to be BUFSIZ which is small on some platforms e.g, musl, |
466 | * therefore hardcode to 4K */ | |
467 | char buf[4096]; | |
d4228e9d KZ |
468 | size_t i; |
469 | struct lscpu_cputype *ct; | |
f5d13532 | 470 | struct cpuinfo_parser _pr = { .cxt = cxt }, *pr = &_pr; |
329ec35f | 471 | |
801b125f KZ |
472 | assert(cxt->npossibles); /* lscpu_create_cpus() required */ |
473 | assert(cxt->cpus); | |
474 | ||
cbf8f129 | 475 | DBG(GATHER, ul_debugobj(cxt, "reading cpuinfo")); |
329ec35f KZ |
476 | |
477 | fp = ul_path_fopen(cxt->procfs, "r", "cpuinfo"); | |
478 | if (!fp) | |
479 | err(EXIT_FAILURE, _("cannot open %s"), "/proc/cpuinfo"); | |
480 | ||
d234a381 | 481 | do { |
f5d13532 KZ |
482 | int keynum = -1; |
483 | char *p = NULL, *value = NULL; | |
484 | const struct cpuinfo_pattern *pattern; | |
d234a381 KZ |
485 | |
486 | if (fgets(buf, sizeof(buf), fp) != NULL) | |
f5d13532 | 487 | p = (char *) skip_space(buf); |
d234a381 | 488 | |
fd5999d9 | 489 | if (p == NULL || (*buf && !*p)) { |
f5d13532 | 490 | /* Blank line separates information */ |
d234a381 KZ |
491 | if (p == NULL) |
492 | break; /* fgets() returns nothing; EOF */ | |
f5d13532 KZ |
493 | continue; |
494 | } | |
495 | ||
496 | rtrim_whitespace((unsigned char *) buf); | |
497 | ||
498 | /* parse */ | |
499 | pattern = cpuinfo_parse_line(p, &value, &keynum); | |
500 | if (!pattern) { | |
501 | DBG(GATHER, ul_debug("'%s' not found", buf)); | |
502 | continue; | |
503 | } | |
504 | ||
505 | /* set data */ | |
506 | switch (pattern->domain) { | |
507 | case CPUINFO_LINE_CPU: | |
508 | if (pattern->id == PAT_PROCESSOR) { | |
ee0fabda | 509 | /* switch CPU */ |
24c17c62 KZ |
510 | int id = 0; |
511 | ||
512 | if (keynum >= 0) | |
513 | id = keynum; | |
514 | else { | |
1d5c14ae KZ |
515 | uint32_t n; |
516 | if (ul_strtou32(value, &n, 10) == 0) | |
24c17c62 KZ |
517 | id = n; |
518 | } | |
ee0fabda KZ |
519 | |
520 | if (pr->curr_cpu && pr->curr_type) | |
521 | lscpu_cpu_set_type(pr->curr_cpu, pr->curr_type); | |
522 | ||
f5d13532 KZ |
523 | lscpu_unref_cpu(pr->curr_cpu); |
524 | pr->curr_cpu = lscpu_get_cpu(cxt, id); | |
ee0fabda | 525 | |
f5d13532 KZ |
526 | if (!pr->curr_cpu) |
527 | DBG(GATHER, ul_debug("*** cpu ID '%d' undefined", id)); | |
528 | else | |
529 | DBG(GATHER, ul_debug(" switch to CPU %d", id)); | |
530 | lscpu_ref_cpu(pr->curr_cpu); | |
531 | break; | |
532 | } | |
533 | if (!pr->curr_cpu) | |
534 | DBG(GATHER, ul_debug("*** cpu data before cpu ID")); | |
535 | else | |
536 | strdup_to_offset(pr->curr_cpu, pattern->offset, value); | |
778254d9 KZ |
537 | |
538 | if (pattern->id == PAT_MHZ_DYNAMIC && pr->curr_type && !pr->curr_type->dynamic_mhz) | |
539 | pr->curr_type->dynamic_mhz = xstrdup(value); | |
540 | if (pattern->id == PAT_MHZ_STATIC && pr->curr_type && !pr->curr_type->static_mhz) | |
541 | pr->curr_type->static_mhz = xstrdup(value); | |
cc94324e KZ |
542 | if (pattern->id == PAT_BOGOMIPS_CPU && pr->curr_type && !pr->curr_type->bogomips) |
543 | pr->curr_type->bogomips = xstrdup(value); | |
9b9e4f5d KZ |
544 | if (pattern->id == PAT_MHZ && pr->curr_cpu && value) { |
545 | errno = 0; | |
0b538002 | 546 | pr->curr_cpu->mhz_cur_freq = (float) c_strtod(value, NULL); |
9b9e4f5d KZ |
547 | if (errno) |
548 | pr->curr_cpu->mhz_cur_freq = 0; | |
549 | } | |
f5d13532 KZ |
550 | break; |
551 | case CPUINFO_LINE_CPUTYPE: | |
ee0fabda KZ |
552 | if (pr->curr_type && is_different_cputype(pr->curr_type, pattern->offset, value)) { |
553 | lscpu_unref_cputype(pr->curr_type); | |
554 | pr->curr_type = NULL; | |
555 | } | |
556 | if (!pr->curr_type) { | |
f5d13532 | 557 | pr->curr_type = lscpu_new_cputype(); |
ee0fabda KZ |
558 | lscpu_add_cputype(cxt, pr->curr_type); |
559 | } | |
560 | ||
f5d13532 KZ |
561 | strdup_to_offset(pr->curr_type, pattern->offset, value); |
562 | break; | |
563 | case CPUINFO_LINE_CACHE: | |
25c2a72c KZ |
564 | if (pattern->id != PAT_CACHE) |
565 | break; | |
566 | cpuinfo_parse_cache(cxt, keynum, value); | |
f5d13532 | 567 | break; |
329ec35f | 568 | } |
d234a381 | 569 | } while (1); |
329ec35f | 570 | |
f495abb7 KZ |
571 | DBG(GATHER, fprintf_cputypes(stderr, cxt)); |
572 | ||
63c5e7f8 KZ |
573 | if (pr->curr_cpu && !pr->curr_cpu->type) |
574 | lscpu_cpu_set_type(pr->curr_cpu, pr->curr_type); | |
575 | ||
ee0fabda KZ |
576 | lscpu_unref_cputype(pr->curr_type); |
577 | lscpu_unref_cpu(pr->curr_cpu); | |
578 | ||
329ec35f | 579 | fclose(fp); |
eadaf6d7 | 580 | lscpu_sort_caches(cxt->ecaches, cxt->necaches); |
e36e01f9 | 581 | |
d4228e9d KZ |
582 | /* Set the default type to CPUs which are missing (or not parsed) |
583 | * in cpuinfo */ | |
584 | ct = lscpu_cputype_get_default(cxt); | |
0d7cef3d | 585 | for (i = 0; ct && i < cxt->npossibles; i++) { |
d4228e9d KZ |
586 | struct lscpu_cpu *cpu = cxt->cpus[i]; |
587 | ||
588 | if (cpu && !cpu->type) | |
589 | lscpu_cpu_set_type(cpu, ct); | |
590 | } | |
591 | ||
405d51ed KZ |
592 | return 0; |
593 | } | |
594 | ||
a94bb435 | 595 | struct lscpu_arch *lscpu_read_architecture(struct lscpu_cxt *cxt) |
d34b7f1b KZ |
596 | { |
597 | struct utsname utsbuf; | |
598 | struct lscpu_arch *ar; | |
599 | struct lscpu_cputype *ct; | |
600 | ||
601 | assert(cxt); | |
d34b7f1b | 602 | |
a94bb435 | 603 | DBG(GATHER, ul_debug("reading architecture")); |
d34b7f1b KZ |
604 | |
605 | if (uname(&utsbuf) == -1) | |
606 | err(EXIT_FAILURE, _("error: uname failed")); | |
607 | ||
a94bb435 | 608 | ar = xcalloc(1, sizeof(*cxt->arch)); |
d34b7f1b KZ |
609 | ar->name = xstrdup(utsbuf.machine); |
610 | ||
611 | if (cxt->noalive) | |
612 | /* reading info from any /{sys,proc} dump, don't mix it with | |
613 | * information about our real CPU */ | |
614 | ; | |
615 | else { | |
616 | #if defined(__alpha__) || defined(__ia64__) | |
617 | ar->bit64 = 1; /* 64bit platforms only */ | |
618 | #endif | |
619 | /* platforms with 64bit flag in /proc/cpuinfo, define | |
620 | * 32bit default here */ | |
621 | #if defined(__i386__) || defined(__x86_64__) || \ | |
622 | defined(__s390x__) || defined(__s390__) || defined(__sparc_v9__) | |
623 | ar->bit32 = 1; | |
624 | #endif | |
625 | ||
626 | #if defined(__aarch64__) | |
627 | { | |
628 | /* personality() is the most reliable way (since 4.7) | |
629 | * to determine aarch32 support */ | |
630 | int pers = personality(PER_LINUX32); | |
631 | if (pers != -1) { | |
632 | personality(pers); | |
633 | ar->bit32 = 1; | |
634 | } | |
635 | ar->bit64 = 1; | |
636 | } | |
637 | #endif | |
638 | } | |
639 | ||
640 | ct = lscpu_cputype_get_default(cxt); | |
641 | if (ct && ct->flags) { | |
642 | char buf[BUFSIZ]; | |
643 | ||
644 | snprintf(buf, sizeof(buf), " %s ", ct->flags); | |
645 | if (strstr(buf, " lm ")) | |
646 | ar->bit32 = 1, ar->bit64 = 1; /* x86_64 */ | |
647 | if (strstr(buf, " zarch ")) | |
648 | ar->bit32 = 1, ar->bit64 = 1; /* s390x */ | |
649 | if (strstr(buf, " sun4v ") || strstr(buf, " sun4u ")) | |
650 | ar->bit32 = 1, ar->bit64 = 1; /* sparc64 */ | |
651 | } | |
652 | ||
eaee3132 XR |
653 | if (ct && ct->isa) { |
654 | char buf[BUFSIZ]; | |
655 | ||
656 | snprintf(buf, sizeof(buf), " %s ", ct->isa); | |
657 | if (strstr(buf, " loongarch32 ")) | |
658 | ar->bit32 = 1; | |
659 | if (strstr(buf, " loongarch64 ")) | |
660 | ar->bit64 = 1; | |
661 | } | |
662 | ||
d34b7f1b KZ |
663 | if (ar->name && !cxt->noalive) { |
664 | if (strcmp(ar->name, "ppc64") == 0) | |
665 | ar->bit32 = 1, ar->bit64 = 1; | |
666 | else if (strcmp(ar->name, "ppc") == 0) | |
667 | ar->bit32 = 1; | |
668 | } | |
669 | ||
a94bb435 KZ |
670 | DBG(GATHER, ul_debugobj(ar, "arch: name=%s %s %s", |
671 | ar->name, | |
672 | ar->bit64 ? "64-bit" : "", | |
673 | ar->bit64 ? "32-bit" : "")); | |
674 | return ar; | |
675 | } | |
676 | ||
677 | void lscpu_free_architecture(struct lscpu_arch *ar) | |
678 | { | |
679 | if (!ar) | |
680 | return; | |
681 | free(ar->name); | |
682 | free(ar); | |
d34b7f1b KZ |
683 | } |
684 | ||
551f2b4d KZ |
685 | int lscpu_read_cpulists(struct lscpu_cxt *cxt) |
686 | { | |
551f2b4d KZ |
687 | cpu_set_t *cpuset = NULL; |
688 | ||
689 | assert(cxt); | |
690 | DBG(GATHER, ul_debugobj(cxt, "reading cpulists")); | |
691 | ||
692 | if (ul_path_read_s32(cxt->syscpu, &cxt->maxcpus, "kernel_max") == 0) | |
693 | /* note that kernel_max is maximum index [NR_CPUS-1] */ | |
694 | cxt->maxcpus += 1; | |
695 | ||
696 | else if (!cxt->noalive) | |
697 | /* the root is '/' so we are working with data from the current kernel */ | |
698 | cxt->maxcpus = get_max_number_of_cpus(); | |
699 | ||
700 | if (cxt->maxcpus <= 0) | |
701 | /* error or we are reading some /sys snapshot instead of the | |
702 | * real /sys, let's use any crazy number... */ | |
703 | cxt->maxcpus = 2048; | |
704 | ||
eaf32c65 | 705 | cxt->setsize = CPU_ALLOC_SIZE(cxt->maxcpus); |
551f2b4d | 706 | |
801b125f | 707 | /* create CPUs from possible mask */ |
eaf32c65 KZ |
708 | if (ul_path_readf_cpulist(cxt->syscpu, &cpuset, cxt->maxcpus, "possible") == 0) { |
709 | lscpu_create_cpus(cxt, cpuset, cxt->setsize); | |
551f2b4d KZ |
710 | cpuset_free(cpuset); |
711 | cpuset = NULL; | |
712 | } else | |
713 | err(EXIT_FAILURE, _("failed to determine number of CPUs: %s"), | |
714 | _PATH_SYS_CPU "/possible"); | |
715 | ||
716 | ||
717 | /* get mask for present CPUs */ | |
eaf32c65 KZ |
718 | if (ul_path_readf_cpulist(cxt->syscpu, &cxt->present, cxt->maxcpus, "present") == 0) |
719 | cxt->npresents = CPU_COUNT_S(cxt->setsize, cxt->present); | |
551f2b4d KZ |
720 | |
721 | /* get mask for online CPUs */ | |
eaf32c65 KZ |
722 | if (ul_path_readf_cpulist(cxt->syscpu, &cxt->online, cxt->maxcpus, "online") == 0) |
723 | cxt->nonlines = CPU_COUNT_S(cxt->setsize, cxt->online); | |
551f2b4d KZ |
724 | |
725 | return 0; | |
726 | } | |
727 | ||
5a6da72c KZ |
728 | #if defined(HAVE_LIBRTAS) |
729 | # define PROCESSOR_MODULE_INFO 43 | |
730 | static int strbe16toh(const char *buf, int offset) | |
731 | { | |
732 | return (buf[offset] << 8) + buf[offset+1]; | |
733 | } | |
734 | #endif | |
735 | ||
736 | /* some extra information for the default CPU type */ | |
9c5b106b | 737 | int lscpu_read_archext(struct lscpu_cxt *cxt) |
5a6da72c KZ |
738 | { |
739 | FILE *f; | |
740 | char buf[BUFSIZ]; | |
741 | struct lscpu_cputype *ct; | |
742 | ||
406b088c KZ |
743 | DBG(GATHER, ul_debugobj(cxt, "reading extra arch info")); |
744 | ||
5a6da72c KZ |
745 | assert(cxt); |
746 | ct = lscpu_cputype_get_default(cxt); | |
747 | if (!ct) | |
748 | return -EINVAL; | |
749 | ||
750 | /* get dispatching mode */ | |
751 | if (ul_path_read_s32(cxt->syscpu, &ct->dispatching, "dispatching") != 0) | |
752 | ct->dispatching = -1; | |
753 | ||
754 | /* get cpufreq boost mode */ | |
755 | if (ul_path_read_s32(cxt->syscpu, &ct->freqboost, "cpufreq/boost") != 0) | |
756 | ct->freqboost = -1; | |
757 | ||
758 | if ((f = ul_path_fopen(cxt->procfs, "r", "sysinfo"))) { | |
759 | while (fgets(buf, sizeof(buf), f) != NULL) { | |
760 | if (lookup(buf, "Type", &ct->machinetype)) | |
761 | break; | |
762 | } | |
763 | fclose(f); | |
764 | } | |
765 | ||
766 | #if defined(HAVE_LIBRTAS) | |
45cd3aa4 | 767 | /* Get PowerPC specific info */ |
5a6da72c KZ |
768 | if (!cxt->noalive) { |
769 | int rc, len, ntypes; | |
770 | ||
771 | ct->physsockets = ct->physchips = ct->physcoresperchip = 0; | |
772 | ||
773 | rc = rtas_get_sysparm(PROCESSOR_MODULE_INFO, sizeof(buf), buf); | |
774 | if (rc < 0) | |
775 | goto nortas; | |
776 | ||
777 | len = strbe16toh(buf, 0); | |
778 | if (len < 8) | |
779 | goto nortas; | |
780 | ||
781 | ntypes = strbe16toh(buf, 2); | |
5a6da72c KZ |
782 | if (!ntypes) |
783 | goto nortas; | |
784 | ||
0796923a KZ |
785 | ct->physsockets = strbe16toh(buf, 4); |
786 | ct->physchips = strbe16toh(buf, 6); | |
787 | ct->physcoresperchip = strbe16toh(buf, 8); | |
5a6da72c | 788 | } |
45cd3aa4 | 789 | nortas: |
5a6da72c KZ |
790 | #endif |
791 | return 0; | |
792 | } | |
793 | ||
0796923a KZ |
794 | static int cmp_vulnerability_name(const void *a0, const void *b0) |
795 | { | |
796 | const struct lscpu_vulnerability | |
797 | *a = (const struct lscpu_vulnerability *) a0, | |
798 | *b = (const struct lscpu_vulnerability *) b0; | |
799 | return strcmp(a->name, b->name); | |
800 | } | |
801 | ||
802 | int lscpu_read_vulnerabilities(struct lscpu_cxt *cxt) | |
803 | { | |
804 | struct dirent *d; | |
805 | DIR *dir; | |
806 | size_t n = 0; | |
807 | ||
808 | assert(cxt); | |
809 | ||
406b088c KZ |
810 | DBG(GATHER, ul_debugobj(cxt, "reading vulnerabilities")); |
811 | ||
0796923a KZ |
812 | dir = ul_path_opendir(cxt->syscpu, "vulnerabilities"); |
813 | if (!dir) | |
814 | return 0; | |
815 | ||
816 | cxt->nvuls = n = 0; | |
817 | while (xreaddir(dir)) | |
818 | n++; | |
1c675ebe KZ |
819 | if (!n) { |
820 | closedir(dir); | |
0796923a | 821 | return 0; |
1c675ebe | 822 | } |
0796923a KZ |
823 | |
824 | rewinddir(dir); | |
825 | cxt->vuls = xcalloc(n, sizeof(struct lscpu_vulnerability)); | |
826 | ||
827 | while (cxt->nvuls < n && (d = xreaddir(dir))) { | |
828 | char *str, *p; | |
829 | struct lscpu_vulnerability *vu; | |
830 | ||
831 | #ifdef _DIRENT_HAVE_D_TYPE | |
832 | if (d->d_type == DT_DIR || d->d_type == DT_UNKNOWN) | |
833 | continue; | |
834 | #endif | |
835 | if (ul_path_readf_string(cxt->syscpu, &str, | |
836 | "vulnerabilities/%s", d->d_name) <= 0) | |
837 | continue; | |
838 | ||
839 | vu = &cxt->vuls[cxt->nvuls++]; | |
840 | ||
841 | /* Name */ | |
842 | vu->name = xstrdup(d->d_name); | |
843 | *vu->name = toupper(*vu->name); | |
844 | strrep(vu->name, '_', ' '); | |
845 | ||
846 | /* Description */ | |
847 | vu->text = str; | |
848 | p = (char *) startswith(vu->text, "Mitigation"); | |
849 | if (p) { | |
850 | *p = ';'; | |
851 | strrem(vu->text, ':'); | |
852 | } | |
853 | } | |
854 | closedir(dir); | |
855 | ||
856 | qsort(cxt->vuls, cxt->nvuls, | |
857 | sizeof(struct lscpu_vulnerability), cmp_vulnerability_name); | |
858 | ||
859 | return 0; | |
860 | } | |
5a6da72c | 861 | |
154ee5a9 KZ |
862 | static inline int is_node_dirent(struct dirent *d) |
863 | { | |
864 | return | |
865 | d && | |
866 | #ifdef _DIRENT_HAVE_D_TYPE | |
867 | (d->d_type == DT_DIR || d->d_type == DT_UNKNOWN) && | |
868 | #endif | |
869 | strncmp(d->d_name, "node", 4) == 0 && | |
870 | isdigit_string(d->d_name + 4); | |
871 | } | |
872 | ||
873 | static int nodecmp(const void *ap, const void *bp) | |
874 | { | |
875 | int *a = (int *) ap, *b = (int *) bp; | |
876 | return *a - *b; | |
877 | } | |
878 | ||
879 | int lscpu_read_numas(struct lscpu_cxt *cxt) | |
880 | { | |
881 | size_t i = 0; | |
882 | DIR *dir; | |
883 | struct dirent *d; | |
884 | struct path_cxt *sys; | |
885 | ||
886 | assert(!cxt->nnodes); | |
887 | ||
406b088c | 888 | |
154ee5a9 KZ |
889 | sys = ul_new_path(_PATH_SYS_NODE); |
890 | if (!sys) | |
891 | err(EXIT_FAILURE, _("failed to initialize %s handler"), _PATH_SYS_NODE); | |
892 | ||
893 | ul_path_set_prefix(sys, cxt->prefix); | |
894 | ||
895 | dir = ul_path_opendir(sys, NULL); | |
896 | if (!dir) | |
897 | goto done; | |
898 | ||
899 | while ((d = readdir(dir))) { | |
900 | if (is_node_dirent(d)) | |
901 | cxt->nnodes++; | |
902 | } | |
903 | ||
904 | if (!cxt->nnodes) { | |
905 | closedir(dir); | |
906 | goto done; | |
907 | } | |
908 | ||
909 | cxt->nodemaps = xcalloc(cxt->nnodes, sizeof(cpu_set_t *)); | |
910 | cxt->idx2nodenum = xmalloc(cxt->nnodes * sizeof(int)); | |
911 | ||
912 | rewinddir(dir); | |
406b088c | 913 | for (i = 0; (d = readdir(dir)) && i < cxt->nnodes;) { |
154ee5a9 | 914 | if (is_node_dirent(d)) |
406b088c | 915 | cxt->idx2nodenum[i++] = strtol_or_err(((d->d_name) + 4), |
154ee5a9 KZ |
916 | _("Failed to extract the node number")); |
917 | } | |
918 | closedir(dir); | |
919 | qsort(cxt->idx2nodenum, cxt->nnodes, sizeof(int), nodecmp); | |
920 | ||
921 | /* information about how nodes share different CPUs */ | |
922 | for (i = 0; i < cxt->nnodes; i++) | |
923 | ul_path_readf_cpuset(sys, &cxt->nodemaps[i], cxt->maxcpus, | |
924 | "node%d/cpumap", cxt->idx2nodenum[i]); | |
925 | done: | |
406b088c KZ |
926 | DBG(GATHER, ul_debugobj(cxt, "read %zu numas", cxt->nnodes)); |
927 | ||
154ee5a9 KZ |
928 | ul_unref_path(sys); |
929 | return 0; | |
930 | } |