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drm/sched/tests: Add unit test for cancel_job()

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The scheduler unit tests now provide a new callback, cancel_job(). This
callback gets used by drm_sched_fini() for all still pending jobs to
cancel them.

Implement a new unit test to test this.

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Signed-off-by: Philipp Stanner <phasta@kernel.org>
Link: https://lore.kernel.org/r/20250710125412.128476-6-phasta@kernel.org
This commit is contained in:
Philipp Stanner
2025-07-10 14:54:08 +02:00
parent 4576de9b79
commit c2668a0e03
1 changed files with 42 additions and 0 deletions
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42
drivers/gpu/drm/scheduler/tests/tests_basic.c
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@@ -204,6 +204,47 @@ static struct kunit_suite drm_sched_basic = {
.test_cases = drm_sched_basic_tests,
};
static void drm_sched_basic_cancel(struct kunit *test)
{
struct drm_mock_sched_entity *entity;
struct drm_mock_scheduler *sched;
struct drm_mock_sched_job *job;
bool done;
/*
* Check that drm_sched_fini() uses the cancel_job() callback to cancel
* jobs that are still pending.
*/
sched = drm_mock_sched_new(test, MAX_SCHEDULE_TIMEOUT);
entity = drm_mock_sched_entity_new(test, DRM_SCHED_PRIORITY_NORMAL,
sched);
job = drm_mock_sched_job_new(test, entity);
drm_mock_sched_job_submit(job);
done = drm_mock_sched_job_wait_scheduled(job, HZ);
KUNIT_ASSERT_TRUE(test, done);
drm_mock_sched_entity_free(entity);
drm_mock_sched_fini(sched);
KUNIT_ASSERT_EQ(test, job->hw_fence.error, -ECANCELED);
}
static struct kunit_case drm_sched_cancel_tests[] = {
KUNIT_CASE(drm_sched_basic_cancel),
{}
};
static struct kunit_suite drm_sched_cancel = {
.name = "drm_sched_basic_cancel_tests",
.init = drm_sched_basic_init,
.exit = drm_sched_basic_exit,
.test_cases = drm_sched_cancel_tests,
};
static void drm_sched_basic_timeout(struct kunit *test)
{
struct drm_mock_scheduler *sched = test->priv;
@@ -471,6 +512,7 @@ static struct kunit_suite drm_sched_credits = {
kunit_test_suites(&drm_sched_basic,
&drm_sched_timeout,
&drm_sched_cancel,
&drm_sched_priority,
&drm_sched_modify_sched,
&drm_sched_credits);