Commit 5095d13d authored by Michal Wajdeczko's avatar Michal Wajdeczko Committed by Rodrigo Vivi
Browse files

drm/xe/kunit: Define helper functions to allocate fake xe device 



There will be more KUnit tests added that will require fake device.
Define generic helper functions to avoid code duplications.

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/20231218190629.502-6-michal.wajdeczko@intel.com


Signed-off-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
parent 4ceb8645

drivers/gpu/drm/xe/Makefile

+3 −0
Original line number Diff line number Diff line
@@ -156,6 +156,9 @@ xe-$(CONFIG_PCI_IOV) += \ 
	xe_lmtt_2l.o \

	xe_lmtt_ml.o



xe-$(CONFIG_DRM_XE_KUNIT_TEST) += \

	tests/xe_kunit_helpers.o



# i915 Display compat #defines and #includes

subdir-ccflags-$(CONFIG_DRM_XE_DISPLAY) += \

	-I$(srctree)/$(src)/display/ext \

drivers/gpu/drm/xe/tests/xe_kunit_helpers.c

0 → 100644
+80 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0 AND MIT

/*

 * Copyright © 2023 Intel Corporation

 */



#include <kunit/test.h>

#include <kunit/static_stub.h>

#include <kunit/visibility.h>



#include <drm/drm_drv.h>

#include <drm/drm_kunit_helpers.h>



#include "tests/xe_kunit_helpers.h"

#include "tests/xe_pci_test.h"

#include "xe_device_types.h"



/**

 * xe_kunit_helper_alloc_xe_device - Allocate a &xe_device for a KUnit test.

 * @test: the &kunit where this &xe_device will be used

 * @dev: The parent device object

 *

 * This function allocates xe_device using drm_kunit_helper_alloc_device().

 * The xe_device allocation is managed by the test.

 *

 * @dev should be allocated using drm_kunit_helper_alloc_device().

 *

 * This function uses KUNIT_ASSERT to detect any allocation failures.

 *

 * Return: A pointer to the new &xe_device.

 */

struct xe_device *xe_kunit_helper_alloc_xe_device(struct kunit *test,

						  struct device *dev)

{

	struct xe_device *xe;



	xe = drm_kunit_helper_alloc_drm_device(test, dev,

					       struct xe_device,

					       drm, DRIVER_GEM);

	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xe);

	return xe;

}

EXPORT_SYMBOL_IF_KUNIT(xe_kunit_helper_alloc_xe_device);



/**

 * xe_kunit_helper_xe_device_test_init - Prepare a &xe_device for a KUnit test.

 * @test: the &kunit where this fake &xe_device will be used

 *

 * This function allocates and initializes a fake &xe_device and stores its

 * pointer as &kunit.priv to allow the test code to access it.

 *

 * This function can be directly used as custom implementation of

 * &kunit_suite.init.

 *

 * It is possible to prepare specific variant of the fake &xe_device by passing

 * in &kunit.priv pointer to the struct xe_pci_fake_data supplemented with

 * desired parameters prior to calling this function.

 *

 * This function uses KUNIT_ASSERT to detect any failures.

 *

 * Return: Always 0.

 */

int xe_kunit_helper_xe_device_test_init(struct kunit *test)

{

	struct xe_device *xe;

	struct device *dev;

	int err;



	dev = drm_kunit_helper_alloc_device(test);

	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev);



	xe = xe_kunit_helper_alloc_xe_device(test, dev);

	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xe);



	err = xe_pci_fake_device_init(xe);

	KUNIT_ASSERT_EQ(test, err, 0);



	test->priv = xe;

	return 0;

}

EXPORT_SYMBOL_IF_KUNIT(xe_kunit_helper_xe_device_test_init);

drivers/gpu/drm/xe/tests/xe_kunit_helpers.h

0 → 100644
+17 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 AND MIT */

/*

 * Copyright © 2023 Intel Corporation

 */



#ifndef _XE_KUNIT_HELPERS_H_

#define _XE_KUNIT_HELPERS_H_



struct device;

struct kunit;

struct xe_device;



struct xe_device *xe_kunit_helper_alloc_xe_device(struct kunit *test,

						  struct device *dev);

int xe_kunit_helper_xe_device_test_init(struct kunit *test);



#endif