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Thu, 1 Dec 2022 10:14:56 -0500 (EST) From: Maxime Ripard Date: Thu, 01 Dec 2022 16:11:38 +0100 Subject: [PATCH v3 07/20] drm/tests: helpers: Create the device in another function MIME-Version: 1.0 Message-Id: <20221123-rpi-kunit-tests-v3-7-4615a663a84a@cerno.tech> References: <20221123-rpi-kunit-tests-v3-0-4615a663a84a@cerno.tech> In-Reply-To: <20221123-rpi-kunit-tests-v3-0-4615a663a84a@cerno.tech> To: Maxime Ripard , Maarten Lankhorst , Daniel Vetter , Thomas Zimmermann , David Airlie X-Mailer: b4 0.10.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=9380; i=maxime@cerno.tech; h=from:subject:message-id; bh=3Exym6xxqWVt6fOmdHC7PPteC1L5T2y3IaPsIclT7Mg=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDMkdRzS2KqzPM7E99tFe/TdLbXjquuy3hQ8Z75UbbjnNyJZZ Ijizo5SFQYyLQVZMkSVG2HxJ3KlZrzvZ+ObBzGFlAhnCwMUpABOZcYCRYd75VTPSheYFR2Rv83o8N3 vZwWtJ/NIcIdybDd1fp834s4iR4VFImfrcts390+exN3h8//xUOz3w7IbptS8lLrPJsBUV8AAA X-Developer-Key: i=maxime@cerno.tech; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?unknown-8bit?q?David_Gow_=3Cdavidgow=40google=2Ecom=3E=2C_Dave_Stevens?= =?unknown-8bit?q?on_=3Cdave=2Estevenson=40raspberrypi=2Ecom=3E=2C_Greg_Kroa?= =?unknown-8bit?q?h-Hartman_=3Cgregkh=40linuxfoundation=2Eorg=3E=2C_Ma=C3=AD?= =?unknown-8bit?q?ra_Canal_=3Cmcanal=40igalia=2Ecom=3E=2C_Javier_Martinez_Ca?= =?unknown-8bit?q?nillas_=3Cjavierm=40redhat=2Ecom=3E=2C_dri-devel=40lists?= =?unknown-8bit?q?=2Efreedesktop=2Eorg=2C_linux-kernel=40vger=2Ekernel=2Eorg?= =?unknown-8bit?q?=2C_linaro-mm-sig=40lists=2Elinaro=2Eorg=2C_Brendan_Higgin?= =?unknown-8bit?q?s_=3Cbrendan=2Ehiggins=40linux=2Edev=3E=2C_Maxime_Ripard_?= =?unknown-8bit?q?=3Cmaxime=40cerno=2Etech=3E=2C_linux-kselftest=40vger=2Eke?= =?unknown-8bit?q?rnel=2Eorg=2C_kunit-dev=40googlegroups=2Ecom=2C_Ma=C3=ADra?= =?unknown-8bit?q?_Canal_=3Cmairacanal=40riseup=2Enet=3E=2C_linux-media=40vg?= =?unknown-8bit?q?er=2Ekernel=2Eorg?= Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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 Signed-off-by: Maxime Ripard --- 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_