| 1 | // SPDX-License-Identifier: GPL-2.0 |
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| 2 | |
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| 3 | #include <drm/drm_drv.h> |
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| 4 | #include <drm/drm_kunit_helpers.h> |
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| 5 | #include <drm/drm_managed.h> |
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| 6 | |
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| 7 | #include <kunit/resource.h> |
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| 8 | |
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| 9 | #include <linux/device.h> |
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| 10 | |
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| 11 | /* Ought to be enough for anybody */ |
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| 12 | #define TEST_TIMEOUT_MS 100 |
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| 13 | |
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| 14 | struct managed_test_priv { |
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| 15 | bool action_done; |
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| 16 | wait_queue_head_t action_wq; |
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| 17 | }; |
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| 18 | |
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| 19 | static void drm_action(struct drm_device *drm, void *ptr) |
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| 20 | { |
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| 21 | struct managed_test_priv *priv = ptr; |
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| 22 | |
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| 23 | priv->action_done = true; |
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| 24 | wake_up_interruptible(&priv->action_wq); |
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| 25 | } |
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| 26 | |
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| 27 | static void drm_test_managed_run_action(struct kunit *test) |
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| 28 | { |
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| 29 | struct managed_test_priv *priv; |
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| 30 | struct drm_device *drm; |
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| 31 | struct device *dev; |
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| 32 | int ret; |
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| 33 | |
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| 34 | priv = kunit_kzalloc(test, size: sizeof(*priv), GFP_KERNEL); |
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| 35 | KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv); |
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| 36 | init_waitqueue_head(&priv->action_wq); |
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| 37 | |
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| 38 | dev = drm_kunit_helper_alloc_device(test); |
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| 39 | KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); |
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| 40 | |
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| 41 | drm = __drm_kunit_helper_alloc_drm_device(test, dev, size: sizeof(*drm), offset: 0, features: DRIVER_MODESET); |
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| 42 | KUNIT_ASSERT_NOT_ERR_OR_NULL(test, drm); |
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| 43 | |
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| 44 | ret = drmm_add_action_or_reset(drm, drm_action, priv); |
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| 45 | KUNIT_EXPECT_EQ(test, ret, 0); |
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| 46 | |
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| 47 | ret = drm_dev_register(dev: drm, flags: 0); |
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| 48 | KUNIT_ASSERT_EQ(test, ret, 0); |
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| 49 | |
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| 50 | drm_dev_unregister(dev: drm); |
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| 51 | drm_kunit_helper_free_device(test, dev); |
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| 52 | |
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| 53 | ret = wait_event_interruptible_timeout(priv->action_wq, priv->action_done, |
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| 54 | msecs_to_jiffies(TEST_TIMEOUT_MS)); |
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| 55 | KUNIT_EXPECT_GT(test, ret, 0); |
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| 56 | } |
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| 57 | |
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| 58 | static struct kunit_case drm_managed_tests[] = { |
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| 59 | KUNIT_CASE(drm_test_managed_run_action), |
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| 60 | {} |
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| 61 | }; |
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| 62 | |
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| 63 | static struct kunit_suite drm_managed_test_suite = { |
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| 64 | .name = "drm-test-managed" , |
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| 65 | .test_cases = drm_managed_tests |
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| 66 | }; |
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| 67 | |
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| 68 | kunit_test_suite(drm_managed_test_suite); |
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| 69 | |
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| 70 | MODULE_AUTHOR("Maxime Ripard <maxime@cerno.tech>" ); |
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| 71 | MODULE_LICENSE("GPL" ); |
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| 72 | |
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