1 // SPDX-License-Identifier: GPL-2.0 <<
2 #include <errno.h> <<
3 #include <inttypes.h> <<
4 #include <unistd.h> 1 #include <unistd.h>
5 #include <stdlib.h> 2 #include <stdlib.h>
6 #include <signal.h> 3 #include <signal.h>
7 #include <sys/mman.h> 4 #include <sys/mman.h>
8 #include <linux/string.h> <<
9 5
10 #include "tests.h" 6 #include "tests.h"
11 #include "util/debug.h" <<
12 #include "util/evsel.h" 7 #include "util/evsel.h"
13 #include "util/evlist.h" 8 #include "util/evlist.h"
14 #include "util/cpumap.h" 9 #include "util/cpumap.h"
15 #include "util/mmap.h" <<
16 #include "util/sample.h" <<
17 #include "util/thread_map.h" 10 #include "util/thread_map.h"
18 #include <perf/evlist.h> <<
19 #include <perf/mmap.h> <<
20 11
21 #define NR_LOOPS 10000000 !! 12 #define NR_LOOPS 1000000
22 13
23 /* 14 /*
24 * This test will open software clock events ( 15 * This test will open software clock events (cpu-clock, task-clock)
25 * then check their frequency -> period conver 16 * then check their frequency -> period conversion has no artifact of
26 * setting period to 1 forcefully. 17 * setting period to 1 forcefully.
27 */ 18 */
28 static int __test__sw_clock_freq(enum perf_sw_ 19 static int __test__sw_clock_freq(enum perf_sw_ids clock_id)
29 { 20 {
30 int i, err = -1; 21 int i, err = -1;
31 volatile int tmp = 0; 22 volatile int tmp = 0;
32 u64 total_periods = 0; 23 u64 total_periods = 0;
33 int nr_samples = 0; 24 int nr_samples = 0;
34 char sbuf[STRERR_BUFSIZE]; <<
35 union perf_event *event; 25 union perf_event *event;
36 struct evsel *evsel; !! 26 struct perf_evsel *evsel;
37 struct evlist *evlist; !! 27 struct perf_evlist *evlist;
38 struct perf_event_attr attr = { 28 struct perf_event_attr attr = {
39 .type = PERF_TYPE_SOFTWARE, 29 .type = PERF_TYPE_SOFTWARE,
40 .config = clock_id, 30 .config = clock_id,
41 .sample_type = PERF_SAMPLE_PER 31 .sample_type = PERF_SAMPLE_PERIOD,
42 .exclude_kernel = 1, 32 .exclude_kernel = 1,
43 .disabled = 1, 33 .disabled = 1,
44 .freq = 1, 34 .freq = 1,
45 }; 35 };
46 struct perf_cpu_map *cpus = NULL; <<
47 struct perf_thread_map *threads = NULL <<
48 struct mmap *md; <<
49 36
50 attr.sample_freq = 500; !! 37 attr.sample_freq = 10000;
51 38
52 evlist = evlist__new(); !! 39 evlist = perf_evlist__new();
53 if (evlist == NULL) { 40 if (evlist == NULL) {
54 pr_debug("evlist__new\n"); !! 41 pr_debug("perf_evlist__new\n");
55 return -1; 42 return -1;
56 } 43 }
57 44
58 evsel = evsel__new(&attr); !! 45 evsel = perf_evsel__new(&attr, 0);
59 if (evsel == NULL) { 46 if (evsel == NULL) {
60 pr_debug("evsel__new\n"); !! 47 pr_debug("perf_evsel__new\n");
61 goto out_delete_evlist; !! 48 goto out_free_evlist;
62 } 49 }
63 evlist__add(evlist, evsel); !! 50 perf_evlist__add(evlist, evsel);
64 51
65 cpus = perf_cpu_map__new_any_cpu(); !! 52 evlist->cpus = cpu_map__dummy_new();
66 threads = thread_map__new_by_tid(getpi !! 53 evlist->threads = thread_map__new_by_tid(getpid());
67 if (!cpus || !threads) { !! 54 if (!evlist->cpus || !evlist->threads) {
68 err = -ENOMEM; 55 err = -ENOMEM;
69 pr_debug("Not enough memory to 56 pr_debug("Not enough memory to create thread/cpu maps\n");
70 goto out_delete_evlist; !! 57 goto out_delete_maps;
71 } 58 }
72 59
73 perf_evlist__set_maps(&evlist->core, c !! 60 perf_evlist__open(evlist);
74 61
75 if (evlist__open(evlist)) { !! 62 err = perf_evlist__mmap(evlist, 128, true);
76 const char *knob = "/proc/sys/ <<
77 <<
78 err = -errno; <<
79 pr_debug("Couldn't open evlist <<
80 str_error_r(errno, sb <<
81 knob, (u64)attr.sampl <<
82 goto out_delete_evlist; <<
83 } <<
84 <<
85 err = evlist__mmap(evlist, 128); <<
86 if (err < 0) { 63 if (err < 0) {
87 pr_debug("failed to mmap event 64 pr_debug("failed to mmap event: %d (%s)\n", errno,
88 str_error_r(errno, sb !! 65 strerror(errno));
89 goto out_delete_evlist; !! 66 goto out_close_evlist;
90 } 67 }
91 68
92 evlist__enable(evlist); !! 69 perf_evlist__enable(evlist);
93 70
94 /* collect samples */ 71 /* collect samples */
95 for (i = 0; i < NR_LOOPS; i++) 72 for (i = 0; i < NR_LOOPS; i++)
96 tmp++; 73 tmp++;
97 74
98 evlist__disable(evlist); !! 75 perf_evlist__disable(evlist);
99 76
100 md = &evlist->mmap[0]; !! 77 while ((event = perf_evlist__mmap_read(evlist, 0)) != NULL) {
101 if (perf_mmap__read_init(&md->core) < <<
102 goto out_init; <<
103 <<
104 while ((event = perf_mmap__read_event( <<
105 struct perf_sample sample; 78 struct perf_sample sample;
106 79
107 if (event->header.type != PERF 80 if (event->header.type != PERF_RECORD_SAMPLE)
108 goto next_event; !! 81 continue;
109 82
110 err = evlist__parse_sample(evl !! 83 err = perf_evlist__parse_sample(evlist, event, &sample);
111 if (err < 0) { 84 if (err < 0) {
112 pr_debug("Error during 85 pr_debug("Error during parse sample\n");
113 goto out_delete_evlist !! 86 goto out_unmap_evlist;
114 } 87 }
115 88
116 total_periods += sample.period 89 total_periods += sample.period;
117 nr_samples++; 90 nr_samples++;
118 next_event: <<
119 perf_mmap__consume(&md->core); <<
120 } 91 }
121 perf_mmap__read_done(&md->core); <<
122 92
123 out_init: <<
124 if ((u64) nr_samples == total_periods) 93 if ((u64) nr_samples == total_periods) {
125 pr_debug("All (%d) samples hav 94 pr_debug("All (%d) samples have period value of 1!\n",
126 nr_samples); 95 nr_samples);
127 err = -1; 96 err = -1;
128 } 97 }
129 98
130 out_delete_evlist: !! 99 out_unmap_evlist:
131 perf_cpu_map__put(cpus); !! 100 perf_evlist__munmap(evlist);
132 perf_thread_map__put(threads); !! 101 out_close_evlist:
133 evlist__delete(evlist); !! 102 perf_evlist__close(evlist);
>> 103 out_delete_maps:
>> 104 perf_evlist__delete_maps(evlist);
>> 105 out_free_evlist:
>> 106 perf_evlist__delete(evlist);
134 return err; 107 return err;
135 } 108 }
136 109
137 static int test__sw_clock_freq(struct test_sui !! 110 int test__sw_clock_freq(void)
138 { 111 {
139 int ret; 112 int ret;
140 113
141 ret = __test__sw_clock_freq(PERF_COUNT 114 ret = __test__sw_clock_freq(PERF_COUNT_SW_CPU_CLOCK);
142 if (!ret) 115 if (!ret)
143 ret = __test__sw_clock_freq(PE 116 ret = __test__sw_clock_freq(PERF_COUNT_SW_TASK_CLOCK);
144 117
145 return ret; 118 return ret;
146 } 119 }
147 <<
148 DEFINE_SUITE("Software clock events period val <<
149 120
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