[PATCH i-g-t 1/2] tests/intel/xe_drm_fdinfo: Group utilization tests and skip when no utilization data

[Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>]

Wrap all utilization-related subtests in an igt_subtest_group and add
a fixture that ensures utilization data is available before running
them.

Link: https://lore.kernel.org/r/20250205191644.2550879-1-marcin.bernatowicz@linux.intel.com

Signed-off-by: Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>
Cc: Jakub Kolakowski <jakub1.kolakowski@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Lukasz Laguna <lukasz.laguna@intel.com>
Cc: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
---
 tests/intel/xe_drm_fdinfo.c | 122 ++++++++++++++++++++----------------
 1 file changed, 67 insertions(+), 55 deletions(-)

diff --git a/tests/intel/xe_drm_fdinfo.c b/tests/intel/xe_drm_fdinfo.c
index 7330b4330..d18fe10d8 100644
--- a/tests/intel/xe_drm_fdinfo.c
+++ b/tests/intel/xe_drm_fdinfo.c
@@ -735,10 +735,6 @@ igt_main
 	igt_subtest("basic-mem")
 		basic_memory(xe);
 
-	igt_describe("Check if basic fdinfo content is present for engine utilization");
-	igt_subtest("basic-utilization")
-		basic_engine_utilization(xe);
-
 	igt_describe("Create and compare total and resident memory consumption by client");
 	igt_subtest("mem-total-resident")
 		mem_total_resident(xe);
@@ -751,57 +747,73 @@ igt_main
 	igt_subtest("mem-active")
 		mem_active(xe, xe_engine(xe, 0));
 
-	igt_subtest("utilization-single-idle")
-		xe_for_each_engine(xe, hwe)
-			utilization_single(xe, hwe, 0);
-
-	igt_subtest("utilization-single-full-load")
-		xe_for_each_engine(xe, hwe)
-			utilization_single(xe, hwe, TEST_BUSY | TEST_TRAILING_IDLE);
-
-	igt_subtest("utilization-single-full-load-isolation")
-		xe_for_each_engine(xe, hwe)
-			utilization_single(xe, hwe, TEST_BUSY | TEST_TRAILING_IDLE | TEST_ISOLATION);
-
-	igt_subtest("utilization-single-full-load-destroy-queue")
-		xe_for_each_engine(xe, hwe)
-			utilization_single_destroy_queue(xe, hwe);
-
-	igt_subtest("utilization-others-idle")
-		xe_for_each_engine(xe, hwe)
-			utilization_others_idle(xe, hwe);
-
-	igt_subtest("utilization-others-full-load")
-		xe_for_each_engine(xe, hwe)
-			utilization_others_full_load(xe, hwe);
-
-	igt_subtest("utilization-all-full-load")
-		utilization_all_full_load(xe);
-
-
-	for (const struct section *s = sections; s->name; s++) {
-		igt_subtest_f("%s-utilization-single-idle", s->name)
-			xe_for_each_gt(xe, gt)
-				xe_for_each_engine_class(class)
-					utilization_multi(xe, gt, class, s->flags);
-
-		igt_subtest_f("%s-utilization-single-full-load", s->name)
-			xe_for_each_gt(xe, gt)
-				xe_for_each_engine_class(class)
-					utilization_multi(xe, gt, class,
-							  s->flags |
-							  TEST_BUSY |
-							  TEST_TRAILING_IDLE);
-
-		igt_subtest_f("%s-utilization-single-full-load-isolation",
-			      s->name)
-			xe_for_each_gt(xe, gt)
-				xe_for_each_engine_class(class)
-					utilization_multi(xe, gt, class,
-							  s->flags |
-							  TEST_BUSY |
-							  TEST_TRAILING_IDLE |
-							  TEST_ISOLATION);
+	igt_subtest_group {
+		igt_fixture {
+			struct drm_client_fdinfo info = { };
+
+			igt_require(igt_parse_drm_fdinfo(xe, &info, engine_map,
+							 ARRAY_SIZE(engine_map),
+							 NULL, 0));
+			igt_require(info.num_engines);
+		}
+
+		igt_describe("Check if basic fdinfo content is present for engine utilization");
+		igt_subtest("basic-utilization")
+			basic_engine_utilization(xe);
+
+		igt_subtest("utilization-single-idle")
+			xe_for_each_engine(xe, hwe)
+				utilization_single(xe, hwe, 0);
+
+		igt_subtest("utilization-single-full-load")
+			xe_for_each_engine(xe, hwe)
+				utilization_single(xe, hwe, TEST_BUSY | TEST_TRAILING_IDLE);
+
+		igt_subtest("utilization-single-full-load-isolation")
+			xe_for_each_engine(xe, hwe)
+				utilization_single(xe, hwe,
+						   TEST_BUSY |
+						   TEST_TRAILING_IDLE |
+						   TEST_ISOLATION);
+
+		igt_subtest("utilization-single-full-load-destroy-queue")
+			xe_for_each_engine(xe, hwe)
+				utilization_single_destroy_queue(xe, hwe);
+
+		igt_subtest("utilization-others-idle")
+			xe_for_each_engine(xe, hwe)
+				utilization_others_idle(xe, hwe);
+
+		igt_subtest("utilization-others-full-load")
+			xe_for_each_engine(xe, hwe)
+				utilization_others_full_load(xe, hwe);
+
+		igt_subtest("utilization-all-full-load")
+			utilization_all_full_load(xe);
+
+		for (const struct section *s = sections; s->name; s++) {
+			igt_subtest_f("%s-utilization-single-idle", s->name)
+				xe_for_each_gt(xe, gt)
+					xe_for_each_engine_class(class)
+						utilization_multi(xe, gt, class, s->flags);
+
+			igt_subtest_f("%s-utilization-single-full-load", s->name)
+				xe_for_each_gt(xe, gt)
+					xe_for_each_engine_class(class)
+						utilization_multi(xe, gt, class,
+								  s->flags |
+								  TEST_BUSY |
+								  TEST_TRAILING_IDLE);
+
+			igt_subtest_f("%s-utilization-single-full-load-isolation", s->name)
+				xe_for_each_gt(xe, gt)
+					xe_for_each_engine_class(class)
+						utilization_multi(xe, gt, class,
+								  s->flags |
+								  TEST_BUSY |
+								  TEST_TRAILING_IDLE |
+								  TEST_ISOLATION);
+		}
 	}
 
 	igt_fixture {
-- 
2.31.1