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drm/tests: managed: Add a simple test for drmm_managed_release

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Add a simple test that checks whether the action is called when
drmm_managed_release is called.

Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240115171351.504264-6-michal.winiarski@intel.com
This commit is contained in:
Michał Winiarski
2024-01-15 18:13:51 +01:00
committed by Maxime Ripard
parent 8ec16a7a9a
commit 2e722c868b
1 changed files with 25 additions and 0 deletions
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25
drivers/gpu/drm/tests/drm_managed_test.c
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@@ -25,6 +25,30 @@ static void drm_action(struct drm_device *drm, void *ptr)
wake_up_interruptible(&priv->action_wq);
}
/*
* The test verifies that the release action is called when
* drmm_release_action is called.
*/
static void drm_test_managed_release_action(struct kunit *test)
{
struct managed_test_priv *priv = test->priv;
int ret;
ret = drmm_add_action_or_reset(priv->drm, drm_action, priv);
KUNIT_EXPECT_EQ(test, ret, 0);
ret = drm_dev_register(priv->drm, 0);
KUNIT_ASSERT_EQ(test, ret, 0);
drmm_release_action(priv->drm, drm_action, priv);
ret = wait_event_interruptible_timeout(priv->action_wq, priv->action_done,
msecs_to_jiffies(TEST_TIMEOUT_MS));
KUNIT_EXPECT_GT(test, ret, 0);
drm_dev_unregister(priv->drm);
drm_kunit_helper_free_device(test, priv->drm->dev);
}
/*
* The test verifies that the release action is called automatically when the
* device is released.
@@ -75,6 +99,7 @@ static int drm_managed_test_init(struct kunit *test)
}
static struct kunit_case drm_managed_tests[] = {
KUNIT_CASE(drm_test_managed_release_action),
KUNIT_CASE(drm_test_managed_run_action),
{}
};