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| author | Maxime Ripard <maxime@cerno.tech> | 2022-12-01 16:11:41 +0100 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2022-12-08 09:56:55 +0100 |
| commit | a9143c5852a7a13d60ef685d27f9617f2a52338b (patch) | |
| tree | 1a7db5ecdb9d53e58eaf78632e6c394cf7ef90c2 /include/drm/drm_kunit_helpers.h | |
| parent | 57a84a97bbda3a4bb38534e9e37634fa9f58c7fc (diff) | |
| download | lwn-a9143c5852a7a13d60ef685d27f9617f2a52338b.tar.gz lwn-a9143c5852a7a13d60ef685d27f9617f2a52338b.zip | |
drm/tests: helpers: Allow for a custom device struct to be allocated
The current helper to allocate a DRM device doesn't allow for any
subclassing by drivers, which is going to be troublesome as we work on
getting some kunit testing on atomic modesetting code.
Let's use a similar pattern to the other allocation helpers by providing
the structure size and offset as arguments.
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-10-4615a663a84a@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'include/drm/drm_kunit_helpers.h')
| -rw-r--r-- | include/drm/drm_kunit_helpers.h | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/include/drm/drm_kunit_helpers.h b/include/drm/drm_kunit_helpers.h index b4277fe92c38..df99fda95e89 100644 --- a/include/drm/drm_kunit_helpers.h +++ b/include/drm/drm_kunit_helpers.h @@ -10,7 +10,35 @@ 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, struct device *dev, - u32 features); +__drm_kunit_helper_alloc_drm_device(struct kunit *test, struct device *dev, + size_t size, size_t offset, + u32 features); + +/** + * drm_kunit_helper_alloc_drm_device - Allocates a mock DRM device for KUnit tests + * @_test: The test context object + * @_dev: The parent device object + * @_type: the type of the struct which contains struct &drm_device + * @_member: the name of the &drm_device within @_type. + * @_features: Mocked DRM device driver features + * + * This function creates a struct &drm_driver and will create a struct + * &drm_device from @_dev and that driver. + * + * @_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. + * + * Returns: + * A pointer to the new drm_device, or an ERR_PTR() otherwise. + */ +#define drm_kunit_helper_alloc_drm_device(_test, _dev, _type, _member, _feat) \ + ((_type *)__drm_kunit_helper_alloc_drm_device(_test, _dev, \ + sizeof(_type), \ + offsetof(_type, _member), \ + _feat)) #endif // DRM_KUNIT_HELPERS_H_ |