We'll need in some tests to control when the device needs to be added and removed, so let's split the device creation from the DRM device creation function.
Reviewed-by: Maíra Canal mcanal@igalia.com Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/tests/drm_client_modeset_test.c | 14 ++++++- drivers/gpu/drm/tests/drm_kunit_helpers.c | 56 +++++++++++++++---------- drivers/gpu/drm/tests/drm_modes_test.c | 15 ++++++- drivers/gpu/drm/tests/drm_probe_helper_test.c | 14 ++++++- include/drm/drm_kunit_helpers.h | 5 ++- 5 files changed, 77 insertions(+), 27 deletions(-)
diff --git a/drivers/gpu/drm/tests/drm_client_modeset_test.c b/drivers/gpu/drm/tests/drm_client_modeset_test.c index 4d475ae6dbb6..053dbc0106d9 100644 --- a/drivers/gpu/drm/tests/drm_client_modeset_test.c +++ b/drivers/gpu/drm/tests/drm_client_modeset_test.c @@ -15,6 +15,7 @@
struct drm_client_modeset_test_priv { struct drm_device *drm; + struct device *dev; struct drm_connector connector; };
@@ -59,7 +60,10 @@ static int drm_client_modeset_test_init(struct kunit *test)
test->priv = priv;
- priv->drm = drm_kunit_helper_alloc_drm_device(test, DRIVER_MODESET); + priv->dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->dev); + + priv->drm = drm_kunit_helper_alloc_drm_device(test, priv->dev, DRIVER_MODESET); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->drm);
ret = drmm_connector_init(priv->drm, &priv->connector, @@ -76,6 +80,13 @@ static int drm_client_modeset_test_init(struct kunit *test) return 0; }
+static void drm_client_modeset_test_exit(struct kunit *test) +{ + struct drm_client_modeset_test_priv *priv = test->priv; + + drm_kunit_helper_free_device(test, priv->dev); +} + static void drm_test_pick_cmdline_res_1920_1080_60(struct kunit *test) { struct drm_client_modeset_test_priv *priv = test->priv; @@ -175,6 +186,7 @@ static struct kunit_case drm_test_pick_cmdline_tests[] = { static struct kunit_suite drm_test_pick_cmdline_test_suite = { .name = "drm_test_pick_cmdline", .init = drm_client_modeset_test_init, + .exit = drm_client_modeset_test_exit, .test_cases = drm_test_pick_cmdline_tests };
diff --git a/drivers/gpu/drm/tests/drm_kunit_helpers.c b/drivers/gpu/drm/tests/drm_kunit_helpers.c index ec33fcbd092d..4bf98bd0a8c6 100644 --- a/drivers/gpu/drm/tests/drm_kunit_helpers.c +++ b/drivers/gpu/drm/tests/drm_kunit_helpers.c @@ -17,36 +17,51 @@ struct kunit_dev { static const struct drm_mode_config_funcs drm_mode_config_funcs = { };
-static int dev_init(struct kunit_resource *res, void *ptr) +/** + * drm_kunit_helper_alloc_device - Allocate a mock device for a KUnit test + * @test: The test context object + * + * This allocates a fake struct &device to create a mock for a KUnit + * test. + * + * Callers need to make sure drm_kunit_helper_free_device() on the + * device when done. + * + * Returns: + * A pointer to the new device, or an ERR_PTR() otherwise. + */ +struct device *drm_kunit_helper_alloc_device(struct kunit *test) { - char *name = ptr; - struct device *dev; - - dev = root_device_register(name); - if (IS_ERR(dev)) - return PTR_ERR(dev); - - res->data = dev; - return 0; + return root_device_register(KUNIT_DEVICE_NAME); } +EXPORT_SYMBOL_GPL(drm_kunit_helper_alloc_device);
-static void dev_free(struct kunit_resource *res) +/** + * drm_kunit_helper_free_device - Frees a mock device + * @test: The test context object + * @dev: The device to free + * + * Frees a device allocated with drm_kunit_helper_alloc_device(). + */ +void drm_kunit_helper_free_device(struct kunit *test, struct device *dev) { - struct device *dev = res->data; - root_device_unregister(dev); } +EXPORT_SYMBOL_GPL(drm_kunit_helper_free_device);
/** * drm_kunit_helper_alloc_drm_device - Allocates a mock DRM device for KUnit tests * @test: The test context object + * @dev: The parent device object * @features: Mocked DRM device driver features * - * This function allocates a new struct &device, creates a struct - * &drm_driver and will create a struct &drm_device using both. + * This function creates a struct &drm_driver and will create a struct + * &drm_device from @dev and that driver. * - * The device and driver are tied to the @test context and will get - * cleaned at the end of the test. The drm_device is allocated through + * @dev should be allocated using drm_kunit_helper_alloc_device(). + * + * The driver is tied to the @test context and will get cleaned at the + * end of the test. The drm_device is allocated through * devm_drm_dev_alloc() and will thus be freed through a device-managed * resource. * @@ -54,19 +69,14 @@ static void dev_free(struct kunit_resource *res) * A pointer to the new drm_device, or an ERR_PTR() otherwise. */ struct drm_device * -drm_kunit_helper_alloc_drm_device(struct kunit *test, +drm_kunit_helper_alloc_drm_device(struct kunit *test, struct device *dev, u32 features) { struct kunit_dev *kdev; struct drm_device *drm; struct drm_driver *driver; - struct device *dev; int ret;
- dev = kunit_alloc_resource(test, dev_init, dev_free, GFP_KERNEL, KUNIT_DEVICE_NAME); - if (!dev) - return ERR_PTR(-ENOMEM); - driver = kunit_kzalloc(test, sizeof(*driver), GFP_KERNEL); if (!driver) return ERR_PTR(-ENOMEM); diff --git a/drivers/gpu/drm/tests/drm_modes_test.c b/drivers/gpu/drm/tests/drm_modes_test.c index 35965ad86188..d1e9f3c0433a 100644 --- a/drivers/gpu/drm/tests/drm_modes_test.c +++ b/drivers/gpu/drm/tests/drm_modes_test.c @@ -13,6 +13,7 @@
struct drm_test_modes_priv { struct drm_device *drm; + struct device *dev; };
static int drm_test_modes_init(struct kunit *test) @@ -22,7 +23,11 @@ static int drm_test_modes_init(struct kunit *test) priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL); KUNIT_ASSERT_NOT_NULL(test, priv);
- priv->drm = drm_kunit_helper_alloc_drm_device(test, DRIVER_MODESET); + priv->dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->dev); + + priv->drm = drm_kunit_helper_alloc_drm_device(test, priv->dev, + DRIVER_MODESET); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->drm);
test->priv = priv; @@ -30,6 +35,13 @@ static int drm_test_modes_init(struct kunit *test) return 0; }
+static void drm_test_modes_exit(struct kunit *test) +{ + struct drm_test_modes_priv *priv = test->priv; + + drm_kunit_helper_free_device(test, priv->dev); +} + static void drm_test_modes_analog_tv_ntsc_480i(struct kunit *test) { struct drm_test_modes_priv *priv = test->priv; @@ -135,6 +147,7 @@ static struct kunit_case drm_modes_analog_tv_tests[] = { static struct kunit_suite drm_modes_analog_tv_test_suite = { .name = "drm_modes_analog_tv", .init = drm_test_modes_init, + .exit = drm_test_modes_exit, .test_cases = drm_modes_analog_tv_tests, };
diff --git a/drivers/gpu/drm/tests/drm_probe_helper_test.c b/drivers/gpu/drm/tests/drm_probe_helper_test.c index be61a92b79d2..63a3bd1a6e4d 100644 --- a/drivers/gpu/drm/tests/drm_probe_helper_test.c +++ b/drivers/gpu/drm/tests/drm_probe_helper_test.c @@ -17,6 +17,7 @@
struct drm_probe_helper_test_priv { struct drm_device *drm; + struct device *dev; struct drm_connector connector; };
@@ -39,7 +40,10 @@ static int drm_probe_helper_test_init(struct kunit *test) KUNIT_ASSERT_NOT_NULL(test, priv); test->priv = priv;
- priv->drm = drm_kunit_helper_alloc_drm_device(test, + priv->dev = drm_kunit_helper_alloc_device(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->dev); + + priv->drm = drm_kunit_helper_alloc_drm_device(test, priv->dev, DRIVER_MODESET | DRIVER_ATOMIC); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->drm);
@@ -55,6 +59,13 @@ static int drm_probe_helper_test_init(struct kunit *test) return 0; }
+static void drm_probe_helper_test_exit(struct kunit *test) +{ + struct drm_probe_helper_test_priv *priv = test->priv; + + drm_kunit_helper_free_device(test, priv->dev); +} + typedef struct drm_display_mode *(*expected_mode_func_t)(struct drm_device *);
struct drm_connector_helper_tv_get_modes_test { @@ -195,6 +206,7 @@ static struct kunit_case drm_test_connector_helper_tv_get_modes_tests[] = { static struct kunit_suite drm_test_connector_helper_tv_get_modes_suite = { .name = "drm_connector_helper_tv_get_modes", .init = drm_probe_helper_test_init, + .exit = drm_probe_helper_test_exit, .test_cases = drm_test_connector_helper_tv_get_modes_tests, };
diff --git a/include/drm/drm_kunit_helpers.h b/include/drm/drm_kunit_helpers.h index 6c12b1426ba0..b4277fe92c38 100644 --- a/include/drm/drm_kunit_helpers.h +++ b/include/drm/drm_kunit_helpers.h @@ -6,8 +6,11 @@ struct drm_device; struct kunit;
+struct device *drm_kunit_helper_alloc_device(struct kunit *test); +void drm_kunit_helper_free_device(struct kunit *test, struct device *dev); + struct drm_device * -drm_kunit_helper_alloc_drm_device(struct kunit *test, +drm_kunit_helper_alloc_drm_device(struct kunit *test, struct device *dev, u32 features);
#endif // DRM_KUNIT_HELPERS_H_