[Intel-gfx] [PATCH i-g-t 4/8] tests/perf: Add testcase to verify pid

[Sagar Arun Kamble]

Signed-off-by: Sagar Arun Kamble <sagar.a.kam...@intel.com>
---
 tests/intel_perf_dapc.c | 76 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)

diff --git a/tests/intel_perf_dapc.c b/tests/intel_perf_dapc.c
index 82cb8e6..afd49f4 100644
--- a/tests/intel_perf_dapc.c
+++ b/tests/intel_perf_dapc.c
@@ -862,6 +862,79 @@ test_perf_ctxid(void)
        igt_waitchildren();
 }
 
+struct oa_pid_sample {
+       uint64_t pid;
+       uint8_t oa_report[];
+};
+
+static void
+verify_pid(uint8_t *perf_reports, int num_reports, size_t report_size,
+          uint64_t pid)
+{
+       struct oa_pid_sample *sample;
+       uint32_t *oa_report;
+
+       for (int i = 0; i < num_reports; i++) {
+               size_t offset = i * report_size;
+
+               sample = (struct oa_pid_sample *) (perf_reports + offset);
+               oa_report = (uint32_t *) sample->oa_report;
+
+               igt_debug("read report: pid= %lu, reason = %x, "
+                         "timestamp = %x\n",
+                         sample->pid, oa_report[0], oa_report[1]);
+
+               if (!oa_report[0])
+                       igt_assert(sample->pid == pid);
+       }
+}
+
+static void
+test_perf_pid(void)
+{
+       uint64_t properties[] = {
+               /* Include OA reports in samples */
+               DRM_I915_PERF_PROP_SAMPLE_OA, true,
+
+               /* OA unit configuration */
+               DRM_I915_PERF_PROP_OA_METRICS_SET, test_metric_set_id,
+               DRM_I915_PERF_PROP_OA_FORMAT, test_oa_format,
+               DRM_I915_PERF_PROP_OA_EXPONENT, oa_exp_1_millisec,
+
+               /* CS parameters */
+               DRM_I915_PERF_PROP_ENGINE, I915_EXEC_RENDER,
+               DRM_I915_PERF_PROP_SAMPLE_PID, true,
+       };
+       struct drm_i915_perf_open_param param = {
+               .flags = I915_PERF_FLAG_FD_CLOEXEC,
+               .num_properties = sizeof(properties) / 16,
+               .properties_ptr = to_user_pointer(properties),
+       };
+
+       /* should be default, but just to be sure... */
+       write_u64_file("/proc/sys/dev/i915/perf_stream_paranoid", 1);
+
+       igt_fork(child, 1) {
+               int prop_size = ARRAY_SIZE(properties);
+               int num_reports = 10;
+               int report_size = get_perf_report_size(properties, prop_size,
+                                                      test_oa_format);
+               int total_size = num_reports * report_size;
+               uint8_t *perf_reports = malloc(total_size);
+               uint64_t pid = getpid();
+
+               igt_assert(perf_reports);
+
+               perf_stream_capture_workload_samples(&param, perf_reports,
+                                                    num_reports, report_size,
+                                                    NULL);
+               verify_pid(perf_reports, num_reports, report_size, pid);
+               free(perf_reports);
+       }
+
+       igt_waitchildren();
+}
+
 igt_main
 {
        igt_skip_on_simulation();
@@ -886,6 +959,9 @@ igt_main
        igt_subtest("perf-ctxid")
                test_perf_ctxid();
 
+       igt_subtest("perf-pid")
+               test_perf_pid();
+
        igt_fixture {
                close(drm_fd);
        }
-- 
1.9.1

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