Add a very simple TDR test which submits a single job and verifies that
the TDR handling will run if the backend failed to complete the job in
time.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxx>
Cc: Christian König <christian.koenig@xxxxxxx>
Cc: Danilo Krummrich <dakr@xxxxxxxxxx>
Cc: Matthew Brost <matthew.brost@xxxxxxxxx>
Cc: Philipp Stanner <phasta@xxxxxxxxxx>
---
.../drm/scheduler/tests/drm_mock_scheduler.c | 12 +++-
.../gpu/drm/scheduler/tests/drm_sched_tests.h | 6 +-
.../scheduler/tests/drm_sched_tests_basic.c | 64 ++++++++++++++++++-
3 files changed, 76 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/scheduler/tests/drm_mock_scheduler.c b/drivers/gpu/drm/scheduler/tests/drm_mock_scheduler.c
index f1985900a6ba..79b6193ce920 100644
--- a/drivers/gpu/drm/scheduler/tests/drm_mock_scheduler.c
+++ b/drivers/gpu/drm/scheduler/tests/drm_mock_scheduler.c
@@ -160,7 +160,11 @@ static struct dma_fence *mock_sched_run_job(struct drm_sched_job *sched_job)
static enum drm_gpu_sched_stat
mock_sched_timedout_job(struct drm_sched_job *sched_job)
{
- return DRM_GPU_SCHED_STAT_ENODEV;
+ struct drm_mock_sched_job *job = drm_sched_job_to_mock_job(sched_job);
+
+ job->flags |= DRM_MOCK_SCHED_JOB_TIMEDOUT;
+
+ return DRM_GPU_SCHED_STAT_NOMINAL;
}
static void mock_sched_free_job(struct drm_sched_job *sched_job)
@@ -174,7 +178,9 @@ static const struct drm_sched_backend_ops drm_mock_scheduler_ops = {
.free_job = mock_sched_free_job
};
-struct drm_mock_scheduler *drm_mock_new_scheduler(struct kunit *test)
+struct drm_mock_scheduler *
+drm_mock_new_scheduler(struct kunit *test,
+ long timeout)
{
struct drm_mock_scheduler *sched;
int ret;
@@ -188,7 +194,7 @@ struct drm_mock_scheduler *drm_mock_new_scheduler(struct kunit *test)
DRM_SCHED_PRIORITY_COUNT,
U32_MAX, /* max credits */
UINT_MAX, /* hang limit */
- MAX_SCHEDULE_TIMEOUT, /* timeout */
+ timeout,
NULL, /* timeout wq */
NULL, /* score */
"drm-mock-scheduler",
diff --git a/drivers/gpu/drm/scheduler/tests/drm_sched_tests.h b/drivers/gpu/drm/scheduler/tests/drm_sched_tests.h
index 421ee2712985..20695f55e453 100644
--- a/drivers/gpu/drm/scheduler/tests/drm_sched_tests.h
+++ b/drivers/gpu/drm/scheduler/tests/drm_sched_tests.h
@@ -35,6 +35,9 @@ struct drm_mock_sched_entity {
struct drm_mock_sched_job {
struct drm_sched_job base;
+#define DRM_MOCK_SCHED_JOB_TIMEDOUT 0x1
+ unsigned long flags;
+
struct list_head link;
struct hrtimer timer;
@@ -65,7 +68,8 @@ drm_sched_job_to_mock_job(struct drm_sched_job *sched_job)
return container_of(sched_job, struct drm_mock_sched_job, base);
};
-struct drm_mock_scheduler *drm_mock_new_scheduler(struct kunit *test);
+struct drm_mock_scheduler *drm_mock_new_scheduler(struct kunit *test,
+ long timeout);
void drm_mock_scheduler_fini(struct drm_mock_scheduler *sched);
unsigned int drm_mock_sched_advance(struct drm_mock_scheduler *sched,
unsigned int num);
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 6fd39bea95b1..eb0d54d00f21 100644
--- a/drivers/gpu/drm/scheduler/tests/drm_sched_tests_basic.c
+++ b/drivers/gpu/drm/scheduler/tests/drm_sched_tests_basic.c
@@ -3,7 +3,7 @@
static int drm_sched_basic_init(struct kunit *test)
{
- test->priv = drm_mock_new_scheduler(test);
+ test->priv = drm_mock_new_scheduler(test, MAX_SCHEDULE_TIMEOUT);
return 0;
}
@@ -15,6 +15,13 @@ static void drm_sched_basic_exit(struct kunit *test)
drm_mock_scheduler_fini(sched);
}
+static int drm_sched_tdr_init(struct kunit *test)
+{
+ test->priv = drm_mock_new_scheduler(test, HZ);
+
+ return 0;
+}
+
static void drm_sched_basic_submit(struct kunit *test)
{
struct drm_mock_scheduler *sched = test->priv;
@@ -244,4 +251,57 @@ static struct kunit_suite drm_sched_basic = {
.test_cases = drm_sched_basic_tests,
};
-kunit_test_suite(drm_sched_basic);
+static void drm_sched_basic_tdr(struct kunit *test)
+{
+ struct drm_mock_scheduler *sched = test->priv;
+ struct drm_mock_sched_entity *entity;
+ struct drm_mock_sched_job *job;
+ bool done;
+
+ /*
+ * Submit a single job against a scheduler with the timeout configured
+ * and verify that the timeout handling will run if the backend fails
+ * to complete it in time.
+ */
+
+ entity = drm_mock_new_sched_entity(test,
+ DRM_SCHED_PRIORITY_NORMAL,
+ sched);
+ job = drm_mock_new_sched_job(test, entity);
+
+ drm_mock_sched_job_submit(job);
+
+ done = drm_mock_sched_job_wait_scheduled(job, HZ);
+ KUNIT_ASSERT_EQ(test, done, true);
+
+ done = drm_mock_sched_job_wait_finished(job, HZ / 2);
+ KUNIT_ASSERT_EQ(test, done, false);
+
+ KUNIT_ASSERT_EQ(test,
+ job->flags & DRM_MOCK_SCHED_JOB_TIMEDOUT,
+ 0);
+
+ done = drm_mock_sched_job_wait_finished(job, HZ);
+ KUNIT_ASSERT_EQ(test, done, false);
+
+ KUNIT_ASSERT_EQ(test,
+ job->flags & DRM_MOCK_SCHED_JOB_TIMEDOUT,
+ DRM_MOCK_SCHED_JOB_TIMEDOUT);
+
+ drm_mock_sched_entity_free(entity);
+}
+
+static struct kunit_case drm_sched_tdr_tests[] = {
+ KUNIT_CASE(drm_sched_basic_tdr),
+ {}
+};
+
+static struct kunit_suite drm_sched_tdr = {
+ .name = "drm_sched_basic_tdr_tests",
+ .init = drm_sched_tdr_init,
+ .exit = drm_sched_basic_exit,
+ .test_cases = drm_sched_tdr_tests,
+};
+
+kunit_test_suites(&drm_sched_basic,
+ &drm_sched_tdr);
--
2.48.0
