Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / tools / perf / tests / pmu.c

diff --git a/kernel/tools/perf/tests/pmu.c b/kernel/tools/perf/tests/pmu.c
new file mode 100644 (file)
index 0000000..eeb68bb
--- /dev/null
+++ b/kernel/tools/perf/tests/pmu.c
@@ -0,0 +1,173 @@
+#include "parse-events.h"
+#include "pmu.h"
+#include "util.h"
+#include "tests.h"
+
+/* Simulated format definitions. */
+static struct test_format {
+       const char *name;
+       const char *value;
+} test_formats[] = {
+       { "krava01", "config:0-1,62-63\n", },
+       { "krava02", "config:10-17\n", },
+       { "krava03", "config:5\n", },
+       { "krava11", "config1:0,2,4,6,8,20-28\n", },
+       { "krava12", "config1:63\n", },
+       { "krava13", "config1:45-47\n", },
+       { "krava21", "config2:0-3,10-13,20-23,30-33,40-43,50-53,60-63\n", },
+       { "krava22", "config2:8,18,48,58\n", },
+       { "krava23", "config2:28-29,38\n", },
+};
+
+/* Simulated users input. */
+static struct parse_events_term test_terms[] = {
+       {
+               .config    = (char *) "krava01",
+               .val.num   = 15,
+               .type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
+               .type_term = PARSE_EVENTS__TERM_TYPE_USER,
+       },
+       {
+               .config    = (char *) "krava02",
+               .val.num   = 170,
+               .type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
+               .type_term = PARSE_EVENTS__TERM_TYPE_USER,
+       },
+       {
+               .config    = (char *) "krava03",
+               .val.num   = 1,
+               .type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
+               .type_term = PARSE_EVENTS__TERM_TYPE_USER,
+       },
+       {
+               .config    = (char *) "krava11",
+               .val.num   = 27,
+               .type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
+               .type_term = PARSE_EVENTS__TERM_TYPE_USER,
+       },
+       {
+               .config    = (char *) "krava12",
+               .val.num   = 1,
+               .type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
+               .type_term = PARSE_EVENTS__TERM_TYPE_USER,
+       },
+       {
+               .config    = (char *) "krava13",
+               .val.num   = 2,
+               .type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
+               .type_term = PARSE_EVENTS__TERM_TYPE_USER,
+       },
+       {
+               .config    = (char *) "krava21",
+               .val.num   = 119,
+               .type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
+               .type_term = PARSE_EVENTS__TERM_TYPE_USER,
+       },
+       {
+               .config    = (char *) "krava22",
+               .val.num   = 11,
+               .type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
+               .type_term = PARSE_EVENTS__TERM_TYPE_USER,
+       },
+       {
+               .config    = (char *) "krava23",
+               .val.num   = 2,
+               .type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
+               .type_term = PARSE_EVENTS__TERM_TYPE_USER,
+       },
+};
+
+/*
+ * Prepare format directory data, exported by kernel
+ * at /sys/bus/event_source/devices/<dev>/format.
+ */
+static char *test_format_dir_get(void)
+{
+       static char dir[PATH_MAX];
+       unsigned int i;
+
+       snprintf(dir, PATH_MAX, "/tmp/perf-pmu-test-format-XXXXXX");
+       if (!mkdtemp(dir))
+               return NULL;
+
+       for (i = 0; i < ARRAY_SIZE(test_formats); i++) {
+               static char name[PATH_MAX];
+               struct test_format *format = &test_formats[i];
+               FILE *file;
+
+               snprintf(name, PATH_MAX, "%s/%s", dir, format->name);
+
+               file = fopen(name, "w");
+               if (!file)
+                       return NULL;
+
+               if (1 != fwrite(format->value, strlen(format->value), 1, file))
+                       break;
+
+               fclose(file);
+       }
+
+       return dir;
+}
+
+/* Cleanup format directory. */
+static int test_format_dir_put(char *dir)
+{
+       char buf[PATH_MAX];
+       snprintf(buf, PATH_MAX, "rm -f %s/*\n", dir);
+       if (system(buf))
+               return -1;
+
+       snprintf(buf, PATH_MAX, "rmdir %s\n", dir);
+       return system(buf);
+}
+
+static struct list_head *test_terms_list(void)
+{
+       static LIST_HEAD(terms);
+       unsigned int i;
+
+       for (i = 0; i < ARRAY_SIZE(test_terms); i++)
+               list_add_tail(&test_terms[i].list, &terms);
+
+       return &terms;
+}
+
+int test__pmu(void)
+{
+       char *format = test_format_dir_get();
+       LIST_HEAD(formats);
+       struct list_head *terms = test_terms_list();
+       int ret;
+
+       if (!format)
+               return -EINVAL;
+
+       do {
+               struct perf_event_attr attr;
+
+               memset(&attr, 0, sizeof(attr));
+
+               ret = perf_pmu__format_parse(format, &formats);
+               if (ret)
+                       break;
+
+               ret = perf_pmu__config_terms(&formats, &attr, terms, false);
+               if (ret)
+                       break;
+
+               ret = -EINVAL;
+
+               if (attr.config  != 0xc00000000002a823)
+                       break;
+               if (attr.config1 != 0x8000400000000145)
+                       break;
+               if (attr.config2 != 0x0400000020041d07)
+                       break;
+
+               ret = 0;
+       } while (0);
+
+       test_format_dir_put(format);
+       return ret;
+}