// SPDX-License-Identifier: GPL-2.0
#ifndef DRM_KUNIT_HELPERS_H_
#define DRM_KUNIT_HELPERS_H_
#include <drm/drm_drv.h>
#include <linux/device.h>
#include <kunit/test.h>
struct drm_connector;
struct drm_crtc_funcs;
struct drm_crtc_helper_funcs;
struct drm_device;
struct drm_plane_funcs;
struct drm_plane_helper_funcs;
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 .
* @ _ feat : 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))
struct drm_atomic_state *
drm_kunit_helper_atomic_state_alloc(struct kunit *test,
struct drm_device *drm,
struct drm_modeset_acquire_ctx *ctx);
struct drm_plane *
drm_kunit_helper_create_primary_plane(struct kunit *test,
struct drm_device *drm,
const struct drm_plane_funcs *funcs,
const struct drm_plane_helper_funcs *helper_funcs,
const uint32_t *formats,
unsigned int num_formats,
const uint64_t *modifiers);
struct drm_crtc *
drm_kunit_helper_create_crtc(struct kunit *test,
struct drm_device *drm,
struct drm_plane *primary,
struct drm_plane *cursor,
const struct drm_crtc_funcs *funcs,
const struct drm_crtc_helper_funcs *helper_funcs);
int drm_kunit_helper_enable_crtc_connector(struct kunit *test,
struct drm_device *drm,
struct drm_crtc *crtc,
struct drm_connector *connector,
const struct drm_display_mode *mode,
struct drm_modeset_acquire_ctx *ctx);
int drm_kunit_add_mode_destroy_action(struct kunit *test,
struct drm_display_mode *mode);
struct drm_display_mode *
drm_kunit_display_mode_from_cea_vic(struct kunit *test, struct drm_device *dev,
u8 video_code);
#endif // DRM_KUNIT_HELPERS_H_
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