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// SPDX-License-Identifier: GPL-2.0
#ifndef DRM_KUNIT_HELPERS_H_
#define DRM_KUNIT_HELPERS_H_
#include <linux/device.h>
#include <kunit/test.h>
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_with_driver(struct kunit *test,
struct device *dev,
size_t size, size_t offset,
const struct drm_driver *driver);
/**
* drm_kunit_helper_alloc_drm_device_with_driver - 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.
* @_drv: Mocked DRM device driver features
*
* This function creates a struct &drm_device from @_dev and @_drv.
*
* @_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_with_driver(_test, _dev, _type, _member, _drv) \
((_type *)__drm_kunit_helper_alloc_drm_device_with_driver(_test, _dev, \
sizeof(_type), \
offsetof(_type, _member), \
_drv))
static inline struct drm_device *
__drm_kunit_helper_alloc_drm_device(struct kunit *test,
struct device *dev,
size_t size, size_t offset,
u32 features)
{
struct drm_driver *driver;
driver = devm_kzalloc(dev, sizeof(*driver), GFP_KERNEL);
KUNIT_ASSERT_NOT_NULL(test, driver);
driver->driver_features = features;
return __drm_kunit_helper_alloc_drm_device_with_driver(test, dev,
size, offset,
driver);
}
/**
* 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_
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