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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
cff7f956 JO |
2 | #include "parse-events.h" |
3 | #include "pmu.h" | |
4 | #include "util.h" | |
5 | #include "tests.h" | |
a43783ae | 6 | #include <errno.h> |
877a7a11 | 7 | #include <linux/kernel.h> |
cff7f956 JO |
8 | |
9 | /* Simulated format definitions. */ | |
10 | static struct test_format { | |
11 | const char *name; | |
12 | const char *value; | |
13 | } test_formats[] = { | |
14 | { "krava01", "config:0-1,62-63\n", }, | |
15 | { "krava02", "config:10-17\n", }, | |
16 | { "krava03", "config:5\n", }, | |
17 | { "krava11", "config1:0,2,4,6,8,20-28\n", }, | |
18 | { "krava12", "config1:63\n", }, | |
19 | { "krava13", "config1:45-47\n", }, | |
20 | { "krava21", "config2:0-3,10-13,20-23,30-33,40-43,50-53,60-63\n", }, | |
21 | { "krava22", "config2:8,18,48,58\n", }, | |
22 | { "krava23", "config2:28-29,38\n", }, | |
23 | }; | |
24 | ||
cff7f956 | 25 | /* Simulated users input. */ |
6cee6cd3 | 26 | static struct parse_events_term test_terms[] = { |
cff7f956 JO |
27 | { |
28 | .config = (char *) "krava01", | |
29 | .val.num = 15, | |
30 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | |
31 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | |
32 | }, | |
33 | { | |
34 | .config = (char *) "krava02", | |
35 | .val.num = 170, | |
36 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | |
37 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | |
38 | }, | |
39 | { | |
40 | .config = (char *) "krava03", | |
41 | .val.num = 1, | |
42 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | |
43 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | |
44 | }, | |
45 | { | |
46 | .config = (char *) "krava11", | |
47 | .val.num = 27, | |
48 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | |
49 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | |
50 | }, | |
51 | { | |
52 | .config = (char *) "krava12", | |
53 | .val.num = 1, | |
54 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | |
55 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | |
56 | }, | |
57 | { | |
58 | .config = (char *) "krava13", | |
59 | .val.num = 2, | |
60 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | |
61 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | |
62 | }, | |
63 | { | |
64 | .config = (char *) "krava21", | |
65 | .val.num = 119, | |
66 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | |
67 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | |
68 | }, | |
69 | { | |
70 | .config = (char *) "krava22", | |
71 | .val.num = 11, | |
72 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | |
73 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | |
74 | }, | |
75 | { | |
76 | .config = (char *) "krava23", | |
77 | .val.num = 2, | |
78 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | |
79 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | |
80 | }, | |
81 | }; | |
cff7f956 JO |
82 | |
83 | /* | |
84 | * Prepare format directory data, exported by kernel | |
85 | * at /sys/bus/event_source/devices/<dev>/format. | |
86 | */ | |
87 | static char *test_format_dir_get(void) | |
88 | { | |
89 | static char dir[PATH_MAX]; | |
90 | unsigned int i; | |
91 | ||
92 | snprintf(dir, PATH_MAX, "/tmp/perf-pmu-test-format-XXXXXX"); | |
93 | if (!mkdtemp(dir)) | |
94 | return NULL; | |
95 | ||
be651ed9 | 96 | for (i = 0; i < ARRAY_SIZE(test_formats); i++) { |
cff7f956 JO |
97 | static char name[PATH_MAX]; |
98 | struct test_format *format = &test_formats[i]; | |
99 | FILE *file; | |
100 | ||
101 | snprintf(name, PATH_MAX, "%s/%s", dir, format->name); | |
102 | ||
103 | file = fopen(name, "w"); | |
104 | if (!file) | |
105 | return NULL; | |
106 | ||
107 | if (1 != fwrite(format->value, strlen(format->value), 1, file)) | |
108 | break; | |
109 | ||
110 | fclose(file); | |
111 | } | |
112 | ||
113 | return dir; | |
114 | } | |
115 | ||
116 | /* Cleanup format directory. */ | |
117 | static int test_format_dir_put(char *dir) | |
118 | { | |
119 | char buf[PATH_MAX]; | |
120 | snprintf(buf, PATH_MAX, "rm -f %s/*\n", dir); | |
121 | if (system(buf)) | |
122 | return -1; | |
123 | ||
124 | snprintf(buf, PATH_MAX, "rmdir %s\n", dir); | |
125 | return system(buf); | |
126 | } | |
127 | ||
128 | static struct list_head *test_terms_list(void) | |
129 | { | |
130 | static LIST_HEAD(terms); | |
131 | unsigned int i; | |
132 | ||
be651ed9 | 133 | for (i = 0; i < ARRAY_SIZE(test_terms); i++) |
cff7f956 JO |
134 | list_add_tail(&test_terms[i].list, &terms); |
135 | ||
136 | return &terms; | |
137 | } | |
138 | ||
81f17c90 | 139 | int test__pmu(struct test *test __maybe_unused, int subtest __maybe_unused) |
cff7f956 JO |
140 | { |
141 | char *format = test_format_dir_get(); | |
142 | LIST_HEAD(formats); | |
143 | struct list_head *terms = test_terms_list(); | |
144 | int ret; | |
145 | ||
146 | if (!format) | |
147 | return -EINVAL; | |
148 | ||
149 | do { | |
150 | struct perf_event_attr attr; | |
151 | ||
152 | memset(&attr, 0, sizeof(attr)); | |
153 | ||
154 | ret = perf_pmu__format_parse(format, &formats); | |
155 | if (ret) | |
156 | break; | |
157 | ||
e64b020b JO |
158 | ret = perf_pmu__config_terms(&formats, &attr, terms, |
159 | false, NULL); | |
cff7f956 JO |
160 | if (ret) |
161 | break; | |
162 | ||
163 | ret = -EINVAL; | |
164 | ||
165 | if (attr.config != 0xc00000000002a823) | |
166 | break; | |
167 | if (attr.config1 != 0x8000400000000145) | |
168 | break; | |
169 | if (attr.config2 != 0x0400000020041d07) | |
170 | break; | |
171 | ||
172 | ret = 0; | |
173 | } while (0); | |
174 | ||
175 | test_format_dir_put(format); | |
176 | return ret; | |
177 | } |