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.
Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
---
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 16c7926d83c2..9fb045fa685f 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(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(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..438b1d42b843 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_
--
2.38.1-b4-0.11.0-dev-d416f
