diff mbox series

[RFC,5/5] drm/scheduler: Add a basic test for modifying entities scheduler list

Message ID 20250203153007.63400-6-tvrtko.ursulin@igalia.com (mailing list archive)
State New
Headers show
Series DRM scheduler kunit tests | expand

Commit Message

Tvrtko Ursulin Feb. 3, 2025, 3:30 p.m. UTC 
Add a basic test for exercising modifying the entities scheduler list at
runtime.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Philipp Stanner <phasta@kernel.org>
---
 .../scheduler/tests/drm_sched_tests_basic.c   | 66 ++++++++++++++++++-
 1 file changed, 65 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/scheduler/tests/drm_sched_tests_basic.c b/drivers/gpu/drm/scheduler/tests/drm_sched_tests_basic.c
index 94706a52e8fd..9c072cdca95f 100644
--- a/drivers/gpu/drm/scheduler/tests/drm_sched_tests_basic.c
+++ b/drivers/gpu/drm/scheduler/tests/drm_sched_tests_basic.c
@@ -395,6 +395,70 @@  static struct kunit_suite drm_sched_priority = {
 	.test_cases = drm_sched_priority_tests,
 };
 
+static void drm_sched_test_modify_sched(struct kunit *test)
+{
+	unsigned int i, cur_ent = 0, cur_sched = 0;
+	struct drm_mock_sched_entity *entity[13];
+	struct drm_mock_scheduler *sched[3];
+	struct drm_mock_sched_job *job;
+	const unsigned int qd = 1000;
+	bool done;
+
+	/*
+	 * Submit a bunch of jobs against entities configured with different
+	 * schedulers and while waiting for them to complete, periodically keep
+	 * changing schedulers associated with each entity.
+	 */
+
+	for (i = 0; i < ARRAY_SIZE(sched); i++)
+		sched[i] = drm_mock_new_scheduler(test, MAX_SCHEDULE_TIMEOUT);
+
+	for (i = 0; i < ARRAY_SIZE(entity); i++)
+		entity[i] = drm_mock_new_sched_entity(test,
+						      DRM_SCHED_PRIORITY_NORMAL,
+						      sched[i % ARRAY_SIZE(sched)]);
+
+	for (i = 0; i < qd; i++) {
+		job = drm_mock_new_sched_job(test, entity[cur_ent++]);
+		cur_ent %= ARRAY_SIZE(entity);
+		drm_mock_sched_job_set_duration_us(job, 1000);
+		drm_mock_sched_job_submit(job);
+	}
+
+	do {
+		struct drm_gpu_scheduler *modify;
+
+		usleep_range(200, 500);
+		cur_ent++;
+		cur_ent %= ARRAY_SIZE(entity);
+		cur_sched++;
+		cur_sched %= ARRAY_SIZE(sched);
+		modify = &sched[cur_sched]->base;
+		drm_sched_entity_modify_sched(&entity[cur_ent]->base, &modify,
+					      1);
+	} while (!drm_mock_sched_job_is_finished(job));
+
+	done = drm_mock_sched_job_wait_finished(job, HZ);
+	KUNIT_ASSERT_EQ(test, done, true);
+
+	for (i = 0; i < ARRAY_SIZE(entity); i++)
+		drm_mock_sched_entity_free(entity[i]);
+
+	for (i = 0; i < ARRAY_SIZE(sched); i++)
+		drm_mock_scheduler_fini(sched[i]);
+}
+
+static struct kunit_case drm_sched_modify_sched_tests[] = {
+	KUNIT_CASE(drm_sched_test_modify_sched),
+	{}
+};
+
+static struct kunit_suite drm_sched_modify_sched = {
+	.name = "drm_sched_basic_modify_sched_tests",
+	.test_cases = drm_sched_modify_sched_tests,
+};
+
 kunit_test_suites(&drm_sched_basic,
 		  &drm_sched_tdr,
-		  &drm_sched_priority);
+		  &drm_sched_priority,
+		  &drm_sched_modify_sched);