~hc/RK356X_SDK_RELEASE.git

..	..	@@ -1,6 +1,9 @@
1	1	// SPDX-License-Identifier: GPL-2.0
2	2	#include <linux/list.h>
3	3	#include <linux/compiler.h>
	4	+#include <linux/string.h>
	5	+#include <linux/zalloc.h>
	6	+#include <subcmd/pager.h>
4	7	#include <sys/types.h>
5	8	#include <errno.h>
6	9	#include <fcntl.h>
..	..	@@ -13,14 +16,17 @@
13	16	#include <api/fs/fs.h>
14	17	#include <locale.h>
15	18	#include <regex.h>
16		-#include "util.h"
	19	+#include <perf/cpumap.h>
	20	+#include "debug.h"
	21	+#include "evsel.h"
17	22	#include "pmu.h"
18	23	#include "parse-events.h"
19		-#include "cpumap.h"
20	24	#include "header.h"
21		-#include "pmu-events/pmu-events.h"
22		-#include "cache.h"
23	25	#include "string2.h"
	26	+#include "strbuf.h"
	27	+#include "fncache.h"
	28	+
	29	+struct perf_pmu perf_pmu__fake;
24	30
25	31	struct perf_pmu_format {
26	32	char *name;
..	..	@@ -28,8 +34,6 @@
28	34	DECLARE_BITMAP(bits, PERF_PMU_FORMAT_BITS);
29	35	struct list_head list;
30	36	};
31		-
32		-#define EVENT_SOURCE_DEVICE_PATH "/bus/event_source/devices/"
33	37
34	38	int perf_pmu_parse(struct list_head list, char name);
35	39	extern FILE *perf_pmu_in;
..	..	@@ -81,7 +85,6 @@
81	85	*/
82	86	static int pmu_format(const char name, struct list_head format)
83	87	{
84		- struct stat st;
85	88	char path[PATH_MAX];
86	89	const char *sysfs = sysfs__mountpoint();
87	90
..	..	@@ -91,8 +94,8 @@
91	94	snprintf(path, PATH_MAX,
92	95	"%s" EVENT_SOURCE_DEVICE_PATH "%s/format", sysfs, name);
93	96
94		- if (stat(path, &st) < 0)
95		- return 0; /* no error if format does not exist */
	97	+ if (!file_available(path))
	98	+ return 0;
96	99
97	100	if (perf_pmu__format_parse(path, format))
98	101	return -1;
..	..	@@ -100,7 +103,7 @@
100	103	return 0;
101	104	}
102	105
103		-static int convert_scale(const char scale, char end, double sval)
	106	+int perf_pmu__convert_scale(const char scale, char end, double sval)
104	107	{
105	108	char *lc;
106	109	int ret = 0;
..	..	@@ -163,7 +166,7 @@
163	166	else
164	167	scale[sret] = '\0';
165	168
166		- ret = convert_scale(scale, NULL, &alias->scale);
	169	+ ret = perf_pmu__convert_scale(scale, NULL, &alias->scale);
167	170	error:
168	171	close(fd);
169	172	return ret;
..	..	@@ -271,7 +274,7 @@
271	274	}
272	275
273	276	/* Delete an alias entry. */
274		-static void perf_pmu_free_alias(struct perf_pmu_alias *newalias)
	277	+void perf_pmu_free_alias(struct perf_pmu_alias *newalias)
275	278	{
276	279	zfree(&newalias->name);
277	280	zfree(&newalias->desc);
..	..	@@ -307,7 +310,8 @@
307	310	char long_desc, char topic,
308	311	char unit, char perpkg,
309	312	char *metric_expr,
310		- char *metric_name)
	313	+ char *metric_name,
	314	+ char *deprecated)
311	315	{
312	316	struct parse_events_term *term;
313	317	struct perf_pmu_alias *alias;
..	..	@@ -324,6 +328,7 @@
324	328	alias->unit[0] = '\0';
325	329	alias->per_pkg = false;
326	330	alias->snapshot = false;
	331	+ alias->deprecated = false;
327	332
328	333	ret = parse_events_terms(&alias->terms, val);
329	334	if (ret) {
..	..	@@ -371,12 +376,15 @@
371	376	desc ? strdup(desc) : NULL;
372	377	alias->topic = topic ? strdup(topic) : NULL;
373	378	if (unit) {
374		- if (convert_scale(unit, &unit, &alias->scale) < 0)
	379	+ if (perf_pmu__convert_scale(unit, &unit, &alias->scale) < 0)
375	380	return -1;
376	381	snprintf(alias->unit, sizeof(alias->unit), "%s", unit);
377	382	}
378	383	alias->per_pkg = perpkg && sscanf(perpkg, "%d", &num) == 1 && num == 1;
379	384	alias->str = strdup(newval);
	385	+
	386	+ if (deprecated)
	387	+ alias->deprecated = true;
380	388
381	389	if (!perf_pmu_merge_alias(alias, list))
382	390	list_add_tail(&alias->list, list);
..	..	@@ -396,10 +404,10 @@
396	404	buf[ret] = 0;
397	405
398	406	/* Remove trailing newline from sysfs file */
399		- rtrim(buf);
	407	+ strim(buf);
400	408
401	409	return __perf_pmu__new_alias(list, dir, name, NULL, buf, NULL, NULL, NULL,
402		- NULL, NULL, NULL);
	410	+ NULL, NULL, NULL, NULL);
403	411	}
404	412
405	413	static inline bool pmu_alias_info_file(char *name)
..	..	@@ -469,7 +477,6 @@
469	477	*/
470	478	static int pmu_aliases(const char name, struct list_head head)
471	479	{
472		- struct stat st;
473	480	char path[PATH_MAX];
474	481	const char *sysfs = sysfs__mountpoint();
475	482
..	..	@@ -479,8 +486,8 @@
479	486	snprintf(path, PATH_MAX,
480	487	"%s/bus/event_source/devices/%s/events", sysfs, name);
481	488
482		- if (stat(path, &st) < 0)
483		- return 0; /* no error if 'events' does not exist */
	489	+ if (!file_available(path))
	490	+ return 0;
484	491
485	492	if (pmu_aliases_parse(path, head))
486	493	return -1;
..	..	@@ -519,7 +526,6 @@
519	526	*/
520	527	static int pmu_type(const char name, __u32 type)
521	528	{
522		- struct stat st;
523	529	char path[PATH_MAX];
524	530	FILE *file;
525	531	int ret = 0;
..	..	@@ -531,7 +537,7 @@
531	537	snprintf(path, PATH_MAX,
532	538	"%s" EVENT_SOURCE_DEVICE_PATH "%s/type", sysfs, name);
533	539
534		- if (stat(path, &st) < 0)
	540	+ if (access(path, R_OK) < 0)
535	541	return -1;
536	542
537	543	file = fopen(path, "r");
..	..	@@ -573,16 +579,16 @@
573	579	closedir(dir);
574	580	}
575	581
576		-static struct cpu_map __pmu_cpumask(const char path)
	582	+static struct perf_cpu_map __pmu_cpumask(const char path)
577	583	{
578	584	FILE *file;
579		- struct cpu_map *cpus;
	585	+ struct perf_cpu_map *cpus;
580	586
581	587	file = fopen(path, "r");
582	588	if (!file)
583	589	return NULL;
584	590
585		- cpus = cpu_map__read(file);
	591	+ cpus = perf_cpu_map__read(file);
586	592	fclose(file);
587	593	return cpus;
588	594	}
..	..	@@ -594,10 +600,10 @@
594	600	#define CPUS_TEMPLATE_UNCORE "%s/bus/event_source/devices/%s/cpumask"
595	601	#define CPUS_TEMPLATE_CPU "%s/bus/event_source/devices/%s/cpus"
596	602
597		-static struct cpu_map pmu_cpumask(const char name)
	603	+static struct perf_cpu_map pmu_cpumask(const char name)
598	604	{
599	605	char path[PATH_MAX];
600		- struct cpu_map *cpus;
	606	+ struct perf_cpu_map *cpus;
601	607	const char *sysfs = sysfs__mountpoint();
602	608	const char *templates[] = {
603	609	CPUS_TEMPLATE_UNCORE,
..	..	@@ -622,14 +628,11 @@
622	628	static bool pmu_is_uncore(const char *name)
623	629	{
624	630	char path[PATH_MAX];
625		- struct cpu_map *cpus;
626		- const char *sysfs = sysfs__mountpoint();
	631	+ const char *sysfs;
627	632
	633	+ sysfs = sysfs__mountpoint();
628	634	snprintf(path, PATH_MAX, CPUS_TEMPLATE_UNCORE, sysfs, name);
629		- cpus = __pmu_cpumask(path);
630		- cpu_map__put(cpus);
631		-
632		- return !!cpus;
	635	+ return file_available(path);
633	636	}
634	637
635	638	/*
..	..	@@ -639,7 +642,6 @@
639	642	*/
640	643	static int is_arm_pmu_core(const char *name)
641	644	{
642		- struct stat st;
643	645	char path[PATH_MAX];
644	646	const char *sysfs = sysfs__mountpoint();
645	647
..	..	@@ -649,49 +651,7 @@
649	651	/* Look for cpu sysfs (specific to arm) */
650	652	scnprintf(path, PATH_MAX, "%s/bus/event_source/devices/%s/cpus",
651	653	sysfs, name);
652		- if (stat(path, &st) == 0)
653		- return 1;
654		-
655		- return 0;
656		-}
657		-
658		-/*
659		- * Return the CPU id as a raw string.
660		- *
661		- * Each architecture should provide a more precise id string that
662		- * can be use to match the architecture's "mapfile".
663		- */
664		-char * __weak get_cpuid_str(struct perf_pmu *pmu __maybe_unused)
665		-{
666		- return NULL;
667		-}
668		-
669		-/* Return zero when the cpuid from the mapfile.csv matches the
670		- * cpuid string generated on this platform.
671		- * Otherwise return non-zero.
672		- */
673		-int strcmp_cpuid_str(const char mapcpuid, const char cpuid)
674		-{
675		- regex_t re;
676		- regmatch_t pmatch[1];
677		- int match;
678		-
679		- if (regcomp(&re, mapcpuid, REG_EXTENDED) != 0) {
680		- /* Warn unable to generate match particular string. */
681		- pr_info("Invalid regular expression %s\n", mapcpuid);
682		- return 1;
683		- }
684		-
685		- match = !regexec(&re, cpuid, 1, pmatch, 0);
686		- regfree(&re);
687		- if (match) {
688		- size_t match_len = (pmatch[0].rm_eo - pmatch[0].rm_so);
689		-
690		- /* Verify the entire string matched. */
691		- if (match_len == strlen(cpuid))
692		- return 0;
693		- }
694		- return 1;
	654	+ return file_available(path);
695	655	}
696	656
697	657	static char perf_pmu__getcpuid(struct perf_pmu pmu)
..	..	@@ -741,21 +701,56 @@
741	701	return map;
742	702	}
743	703
	704	+bool pmu_uncore_alias_match(const char pmu_name, const char name)
	705	+{
	706	+ char tmp = NULL, tok, *str;
	707	+ bool res;
	708	+
	709	+ str = strdup(pmu_name);
	710	+ if (!str)
	711	+ return false;
	712	+
	713	+ /*
	714	+ * uncore alias may be from different PMU with common prefix
	715	+ */
	716	+ tok = strtok_r(str, ",", &tmp);
	717	+ if (strncmp(pmu_name, tok, strlen(tok))) {
	718	+ res = false;
	719	+ goto out;
	720	+ }
	721	+
	722	+ /*
	723	+ * Match more complex aliases where the alias name is a comma-delimited
	724	+ * list of tokens, orderly contained in the matching PMU name.
	725	+ *
	726	+ * Example: For alias "socket,pmuname" and PMU "socketX_pmunameY", we
	727	+ * match "socket" in "socketX_pmunameY" and then "pmuname" in
	728	+ * "pmunameY".
	729	+ */
	730	+ for (; tok; name += strlen(tok), tok = strtok_r(NULL, ",", &tmp)) {
	731	+ name = strstr(name, tok);
	732	+ if (!name) {
	733	+ res = false;
	734	+ goto out;
	735	+ }
	736	+ }
	737	+
	738	+ res = true;
	739	+out:
	740	+ free(str);
	741	+ return res;
	742	+}
	743	+
744	744	/*
745	745	* From the pmu_events_map, find the table of PMU events that corresponds
746	746	* to the current running CPU. Then, add all PMU events from that table
747	747	* as aliases.
748	748	*/
749		-static void pmu_add_cpu_aliases(struct list_head head, struct perf_pmu pmu)
	749	+void pmu_add_cpu_aliases_map(struct list_head head, struct perf_pmu pmu,
	750	+ struct pmu_events_map *map)
750	751	{
751	752	int i;
752		- struct pmu_events_map *map;
753	753	const char *name = pmu->name;
754		-
755		- map = perf_pmu__find_map(pmu);
756		- if (!map)
757		- return;
758		-
759	754	/*
760	755	* Found a matching PMU events table. Create aliases
761	756	*/
..	..	@@ -771,12 +766,8 @@
771	766	break;
772	767	}
773	768
774		- /*
775		- * uncore alias may be from different PMU
776		- * with common prefix
777		- */
778	769	if (pmu_is_uncore(name) &&
779		- !strncmp(pname, name, strlen(pname)))
	770	+ pmu_uncore_alias_match(pname, name))
780	771	goto new_alias;
781	772
782	773	if (strcmp(pname, name))
..	..	@@ -789,14 +780,39 @@
789	780	(char )pe->long_desc, (char )pe->topic,
790	781	(char )pe->unit, (char )pe->perpkg,
791	782	(char *)pe->metric_expr,
792		- (char *)pe->metric_name);
	783	+ (char *)pe->metric_name,
	784	+ (char *)pe->deprecated);
793	785	}
	786	+}
	787	+
	788	+static void pmu_add_cpu_aliases(struct list_head head, struct perf_pmu pmu)
	789	+{
	790	+ struct pmu_events_map *map;
	791	+
	792	+ map = perf_pmu__find_map(pmu);
	793	+ if (!map)
	794	+ return;
	795	+
	796	+ pmu_add_cpu_aliases_map(head, pmu, map);
794	797	}
795	798
796	799	struct perf_event_attr * __weak
797	800	perf_pmu__get_default_config(struct perf_pmu *pmu __maybe_unused)
798	801	{
799	802	return NULL;
	803	+}
	804	+
	805	+static int pmu_max_precise(const char *name)
	806	+{
	807	+ char path[PATH_MAX];
	808	+ int max_precise = -1;
	809	+
	810	+ scnprintf(path, PATH_MAX,
	811	+ "bus/event_source/devices/%s/caps/max_precise",
	812	+ name);
	813	+
	814	+ sysfs__read_int(path, &max_precise);
	815	+ return max_precise;
800	816	}
801	817
802	818	static struct perf_pmu pmu_lookup(const char name)
..	..	@@ -831,10 +847,12 @@
831	847	pmu->name = strdup(name);
832	848	pmu->type = type;
833	849	pmu->is_uncore = pmu_is_uncore(name);
	850	+ pmu->max_precise = pmu_max_precise(name);
834	851	pmu_add_cpu_aliases(&aliases, pmu);
835	852
836	853	INIT_LIST_HEAD(&pmu->format);
837	854	INIT_LIST_HEAD(&pmu->aliases);
	855	+ INIT_LIST_HEAD(&pmu->caps);
838	856	list_splice(&format, &pmu->format);
839	857	list_splice(&aliases, &pmu->aliases);
840	858	list_add_tail(&pmu->list, &pmus);
..	..	@@ -844,12 +862,40 @@
844	862	return pmu;
845	863	}
846	864
	865	+void perf_pmu__warn_invalid_formats(struct perf_pmu *pmu)
	866	+{
	867	+ struct perf_pmu_format *format;
	868	+
	869	+ /* fake pmu doesn't have format list */
	870	+ if (pmu == &perf_pmu__fake)
	871	+ return;
	872	+
	873	+ list_for_each_entry(format, &pmu->format, list)
	874	+ if (format->value >= PERF_PMU_FORMAT_VALUE_CONFIG_END) {
	875	+ pr_warning("WARNING: '%s' format '%s' requires 'perf_event_attr::config%d'"
	876	+ "which is not supported by this version of perf!\n",
	877	+ pmu->name, format->name, format->value);
	878	+ return;
	879	+ }
	880	+}
	881	+
847	882	static struct perf_pmu pmu_find(const char name)
848	883	{
849	884	struct perf_pmu *pmu;
850	885
851	886	list_for_each_entry(pmu, &pmus, list)
852	887	if (!strcmp(pmu->name, name))
	888	+ return pmu;
	889	+
	890	+ return NULL;
	891	+}
	892	+
	893	+struct perf_pmu *perf_pmu__find_by_type(unsigned int type)
	894	+{
	895	+ struct perf_pmu *pmu;
	896	+
	897	+ list_for_each_entry(pmu, &pmus, list)
	898	+ if (pmu->type == type)
853	899	return pmu;
854	900
855	901	return NULL;
..	..	@@ -868,6 +914,25 @@
868	914	list_for_each_entry_continue(pmu, &pmus, list)
869	915	return pmu;
870	916	return NULL;
	917	+}
	918	+
	919	+struct perf_pmu evsel__find_pmu(struct evsel evsel)
	920	+{
	921	+ struct perf_pmu *pmu = NULL;
	922	+
	923	+ while ((pmu = perf_pmu__scan(pmu)) != NULL) {
	924	+ if (pmu->type == evsel->core.attr.type)
	925	+ break;
	926	+ }
	927	+
	928	+ return pmu;
	929	+}
	930	+
	931	+bool evsel__is_aux_event(struct evsel *evsel)
	932	+{
	933	+ struct perf_pmu *pmu = evsel__find_pmu(evsel);
	934	+
	935	+ return pmu && pmu->auxtrace;
871	936	}
872	937
873	938	struct perf_pmu perf_pmu__find(const char name)
..	..	@@ -911,6 +976,16 @@
911	976	bits \|= 1ULL << fbit;
912	977
913	978	return bits;
	979	+}
	980	+
	981	+int perf_pmu__format_type(struct list_head formats, const char name)
	982	+{
	983	+ struct perf_pmu_format *format = pmu_find_format(formats, name);
	984	+
	985	+ if (!format)
	986	+ return -1;
	987	+
	988	+ return format->value;
914	989	}
915	990
916	991	/*
..	..	@@ -960,12 +1035,11 @@
960	1035	struct parse_events_term *t;
961	1036
962	1037	list_for_each_entry(t, head_terms, list) {
963		- if (t->type_val == PARSE_EVENTS__TERM_TYPE_NUM) {
964		- if (!strcmp(t->config, term->config)) {
965		- t->used = true;
966		- *value = t->val.num;
967		- return 0;
968		- }
	1038	+ if (t->type_val == PARSE_EVENTS__TERM_TYPE_NUM &&
	1039	+ t->config && !strcmp(t->config, term->config)) {
	1040	+ t->used = true;
	1041	+ *value = t->val.num;
	1042	+ return 0;
969	1043	}
970	1044	}
971	1045
..	..	@@ -1001,7 +1075,8 @@
1001	1075	* Setup one of config[12] attr members based on the
1002	1076	* user input data - term parameter.
1003	1077	*/
1004		-static int pmu_config_term(struct list_head *formats,
	1078	+static int pmu_config_term(const char *pmu_name,
	1079	+ struct list_head *formats,
1005	1080	struct perf_event_attr *attr,
1006	1081	struct parse_events_term *term,
1007	1082	struct list_head *head_terms,
..	..	@@ -1027,16 +1102,24 @@
1027	1102
1028	1103	format = pmu_find_format(formats, term->config);
1029	1104	if (!format) {
1030		- if (verbose > 0)
1031		- printf("Invalid event/parameter '%s'\n", term->config);
1032		- if (err) {
1033		- char *pmu_term = pmu_formats_string(formats);
	1105	+ char *pmu_term = pmu_formats_string(formats);
	1106	+ char *unknown_term;
	1107	+ char *help_msg;
1034	1108
1035		- err->idx = term->err_term;
1036		- err->str = strdup("unknown term");
1037		- err->help = parse_events_formats_error_string(pmu_term);
1038		- free(pmu_term);
	1109	+ if (asprintf(&unknown_term,
	1110	+ "unknown term '%s' for pmu '%s'",
	1111	+ term->config, pmu_name) < 0)
	1112	+ unknown_term = NULL;
	1113	+ help_msg = parse_events_formats_error_string(pmu_term);
	1114	+ if (err) {
	1115	+ parse_events__handle_error(err, term->err_term,
	1116	+ unknown_term,
	1117	+ help_msg);
	1118	+ } else {
	1119	+ pr_debug("%s (%s)\n", unknown_term, help_msg);
	1120	+ free(unknown_term);
1039	1121	}
	1122	+ free(pmu_term);
1040	1123	return -EINVAL;
1041	1124	}
1042	1125
..	..	@@ -1062,8 +1145,9 @@
1062	1145	if (term->no_value &&
1063	1146	bitmap_weight(format->bits, PERF_PMU_FORMAT_BITS) > 1) {
1064	1147	if (err) {
1065		- err->idx = term->err_val;
1066		- err->str = strdup("no value assigned for term");
	1148	+ parse_events__handle_error(err, term->err_val,
	1149	+ strdup("no value assigned for term"),
	1150	+ NULL);
1067	1151	}
1068	1152	return -EINVAL;
1069	1153	}
..	..	@@ -1076,8 +1160,9 @@
1076	1160	term->config, term->val.str);
1077	1161	}
1078	1162	if (err) {
1079		- err->idx = term->err_val;
1080		- err->str = strdup("expected numeric value");
	1163	+ parse_events__handle_error(err, term->err_val,
	1164	+ strdup("expected numeric value"),
	1165	+ NULL);
1081	1166	}
1082	1167	return -EINVAL;
1083	1168	}
..	..	@@ -1090,11 +1175,15 @@
1090	1175	max_val = pmu_format_max_value(format->bits);
1091	1176	if (val > max_val) {
1092	1177	if (err) {
1093		- err->idx = term->err_val;
1094		- if (asprintf(&err->str,
1095		- "value too big for format, maximum is %llu",
1096		- (unsigned long long)max_val) < 0)
1097		- err->str = strdup("value too big for format");
	1178	+ char *err_str;
	1179	+
	1180	+ parse_events__handle_error(err, term->err_val,
	1181	+ asprintf(&err_str,
	1182	+ "value too big for format, maximum is %llu",
	1183	+ (unsigned long long)max_val) < 0
	1184	+ ? strdup("value too big for format")
	1185	+ : err_str,
	1186	+ NULL);
1098	1187	return -EINVAL;
1099	1188	}
1100	1189	/*
..	..	@@ -1107,7 +1196,7 @@
1107	1196	return 0;
1108	1197	}
1109	1198
1110		-int perf_pmu__config_terms(struct list_head *formats,
	1199	+int perf_pmu__config_terms(const char pmu_name, struct list_head formats,
1111	1200	struct perf_event_attr *attr,
1112	1201	struct list_head *head_terms,
1113	1202	bool zero, struct parse_events_error *err)
..	..	@@ -1115,7 +1204,7 @@
1115	1204	struct parse_events_term *term;
1116	1205
1117	1206	list_for_each_entry(term, head_terms, list) {
1118		- if (pmu_config_term(formats, attr, term, head_terms,
	1207	+ if (pmu_config_term(pmu_name, formats, attr, term, head_terms,
1119	1208	zero, err))
1120	1209	return -EINVAL;
1121	1210	}
..	..	@@ -1135,8 +1224,8 @@
1135	1224	bool zero = !!pmu->default_config;
1136	1225
1137	1226	attr->type = pmu->type;
1138		- return perf_pmu__config_terms(&pmu->format, attr, head_terms,
1139		- zero, err);
	1227	+ return perf_pmu__config_terms(pmu->name, &pmu->format, attr,
	1228	+ head_terms, zero, err);
1140	1229	}
1141	1230
1142	1231	static struct perf_pmu_alias pmu_find_alias(struct perf_pmu pmu,
..	..	@@ -1235,8 +1324,8 @@
1235	1324	info->metric_expr = alias->metric_expr;
1236	1325	info->metric_name = alias->metric_name;
1237	1326
1238		- list_del(&term->list);
1239		- free(term);
	1327	+ list_del_init(&term->list);
	1328	+ parse_events_term__delete(term);
1240	1329	}
1241	1330
1242	1331	/*
..	..	@@ -1341,6 +1430,7 @@
1341	1430	char *pmu;
1342	1431	char *metric_expr;
1343	1432	char *metric_name;
	1433	+ int is_cpu;
1344	1434	};
1345	1435
1346	1436	static int cmp_sevent(const void a, const void b)
..	..	@@ -1357,6 +1447,11 @@
1357	1447	if (n)
1358	1448	return n;
1359	1449	}
	1450	+
	1451	+ /* Order CPU core events to be first */
	1452	+ if (as->is_cpu != bs->is_cpu)
	1453	+ return bs->is_cpu - as->is_cpu;
	1454	+
1360	1455	return strcmp(as->name, bs->name);
1361	1456	}
1362	1457
..	..	@@ -1377,12 +1472,17 @@
1377	1472	break;
1378	1473	s += wlen;
1379	1474	column += n;
1380		- s = ltrim(s);
	1475	+ s = skip_spaces(s);
1381	1476	}
1382	1477	}
1383	1478
	1479	+bool is_pmu_core(const char *name)
	1480	+{
	1481	+ return !strcmp(name, "cpu") \|\| is_arm_pmu_core(name);
	1482	+}
	1483	+
1384	1484	void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
1385		- bool long_desc, bool details_flag)
	1485	+ bool long_desc, bool details_flag, bool deprecated)
1386	1486	{
1387	1487	struct perf_pmu *pmu;
1388	1488	struct perf_pmu_alias *alias;
..	..	@@ -1411,7 +1511,10 @@
1411	1511	list_for_each_entry(alias, &pmu->aliases, list) {
1412	1512	char *name = alias->desc ? alias->name :
1413	1513	format_alias(buf, sizeof(buf), pmu, alias);
1414		- bool is_cpu = !strcmp(pmu->name, "cpu");
	1514	+ bool is_cpu = is_pmu_core(pmu->name);
	1515	+
	1516	+ if (alias->deprecated && !deprecated)
	1517	+ continue;
1415	1518
1416	1519	if (event_glob != NULL &&
1417	1520	!(strglobmatch_nocase(name, event_glob) \|\|
..	..	@@ -1440,6 +1543,7 @@
1440	1543	aliases[j].pmu = pmu->name;
1441	1544	aliases[j].metric_expr = alias->metric_expr;
1442	1545	aliases[j].metric_name = alias->metric_name;
	1546	+ aliases[j].is_cpu = is_cpu;
1443	1547	j++;
1444	1548	}
1445	1549	if (pmu->selectable &&
..	..	@@ -1518,7 +1622,6 @@
1518	1622
1519	1623	static FILE perf_pmu__open_file(struct perf_pmu pmu, const char *name)
1520	1624	{
1521		- struct stat st;
1522	1625	char path[PATH_MAX];
1523	1626	const char *sysfs;
1524	1627
..	..	@@ -1528,10 +1631,8 @@
1528	1631
1529	1632	snprintf(path, PATH_MAX,
1530	1633	"%s" EVENT_SOURCE_DEVICE_PATH "%s/%s", sysfs, pmu->name, name);
1531		-
1532		- if (stat(path, &st) < 0)
	1634	+ if (!file_available(path))
1533	1635	return NULL;
1534		-
1535	1636	return fopen(path, "r");
1536	1637	}
1537	1638
..	..	@@ -1551,3 +1652,117 @@
1551	1652	va_end(args);
1552	1653	return ret;
1553	1654	}
	1655	+
	1656	+static int perf_pmu__new_caps(struct list_head list, char name, char *value)
	1657	+{
	1658	+ struct perf_pmu_caps caps = zalloc(sizeof(caps));
	1659	+
	1660	+ if (!caps)
	1661	+ return -ENOMEM;
	1662	+
	1663	+ caps->name = strdup(name);
	1664	+ if (!caps->name)
	1665	+ goto free_caps;
	1666	+ caps->value = strndup(value, strlen(value) - 1);
	1667	+ if (!caps->value)
	1668	+ goto free_name;
	1669	+ list_add_tail(&caps->list, list);
	1670	+ return 0;
	1671	+
	1672	+free_name:
	1673	+ zfree(caps->name);
	1674	+free_caps:
	1675	+ free(caps);
	1676	+
	1677	+ return -ENOMEM;
	1678	+}
	1679	+
	1680	+/*
	1681	+ * Reading/parsing the given pmu capabilities, which should be located at:
	1682	+ * /sys/bus/event_source/devices/<dev>/caps as sysfs group attributes.
	1683	+ * Return the number of capabilities
	1684	+ */
	1685	+int perf_pmu__caps_parse(struct perf_pmu *pmu)
	1686	+{
	1687	+ struct stat st;
	1688	+ char caps_path[PATH_MAX];
	1689	+ const char *sysfs = sysfs__mountpoint();
	1690	+ DIR *caps_dir;
	1691	+ struct dirent *evt_ent;
	1692	+ int nr_caps = 0;
	1693	+
	1694	+ if (!sysfs)
	1695	+ return -1;
	1696	+
	1697	+ snprintf(caps_path, PATH_MAX,
	1698	+ "%s" EVENT_SOURCE_DEVICE_PATH "%s/caps", sysfs, pmu->name);
	1699	+
	1700	+ if (stat(caps_path, &st) < 0)
	1701	+ return 0; /* no error if caps does not exist */
	1702	+
	1703	+ caps_dir = opendir(caps_path);
	1704	+ if (!caps_dir)
	1705	+ return -EINVAL;
	1706	+
	1707	+ while ((evt_ent = readdir(caps_dir)) != NULL) {
	1708	+ char path[PATH_MAX + NAME_MAX + 1];
	1709	+ char *name = evt_ent->d_name;
	1710	+ char value[128];
	1711	+ FILE *file;
	1712	+
	1713	+ if (!strcmp(name, ".") \|\| !strcmp(name, ".."))
	1714	+ continue;
	1715	+
	1716	+ snprintf(path, sizeof(path), "%s/%s", caps_path, name);
	1717	+
	1718	+ file = fopen(path, "r");
	1719	+ if (!file)
	1720	+ continue;
	1721	+
	1722	+ if (!fgets(value, sizeof(value), file) \|\|
	1723	+ (perf_pmu__new_caps(&pmu->caps, name, value) < 0)) {
	1724	+ fclose(file);
	1725	+ continue;
	1726	+ }
	1727	+
	1728	+ nr_caps++;
	1729	+ fclose(file);
	1730	+ }
	1731	+
	1732	+ closedir(caps_dir);
	1733	+
	1734	+ return nr_caps;
	1735	+}
	1736	+
	1737	+void perf_pmu__warn_invalid_config(struct perf_pmu *pmu, __u64 config,
	1738	+ char *name)
	1739	+{
	1740	+ struct perf_pmu_format *format;
	1741	+ __u64 masks = 0, bits;
	1742	+ char buf[100];
	1743	+ unsigned int i;
	1744	+
	1745	+ list_for_each_entry(format, &pmu->format, list) {
	1746	+ if (format->value != PERF_PMU_FORMAT_VALUE_CONFIG)
	1747	+ continue;
	1748	+
	1749	+ for_each_set_bit(i, format->bits, PERF_PMU_FORMAT_BITS)
	1750	+ masks \|= 1ULL << i;
	1751	+ }
	1752	+
	1753	+ /*
	1754	+ * Kernel doesn't export any valid format bits.
	1755	+ */
	1756	+ if (masks == 0)
	1757	+ return;
	1758	+
	1759	+ bits = config & ~masks;
	1760	+ if (bits == 0)
	1761	+ return;
	1762	+
	1763	+ bitmap_scnprintf((unsigned long )&bits, sizeof(bits) 8, buf, sizeof(buf));
	1764	+
	1765	+ pr_warning("WARNING: event '%s' not valid (bits %s of config "
	1766	+ "'%llx' not supported by kernel)!\n",
	1767	+ name ?: "N/A", buf, config);
	1768	+}