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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 AND MIT */
2/*
3 * Copyright © 2022 Intel Corporation
4 */
5
6#ifndef _XE_TEST_H_
7#define _XE_TEST_H_
8
9#include <linux/types.h>
10
11#if IS_ENABLED(CONFIG_DRM_XE_KUNIT_TEST)
12#include <kunit/test.h>
13#include <kunit/test-bug.h>
14
15/*
16 * Each test that provides a kunit private test structure, place a test id
17 * here and point the kunit->priv to an embedded struct xe_test_priv.
18 */
19enum xe_test_priv_id {
20 XE_TEST_LIVE_DMA_BUF,
21 XE_TEST_LIVE_MIGRATE,
22};
23
24/**
25 * struct xe_test_priv - Base class for test private info
26 * @id: enum xe_test_priv_id to identify the subclass.
27 */
28struct xe_test_priv {
29 enum xe_test_priv_id id;
30};
31
32#define XE_TEST_DECLARE(x) x
33#define XE_TEST_ONLY(x) unlikely(x)
34
35/**
36 * xe_cur_kunit_priv - Obtain the struct xe_test_priv pointed to by
37 * current->kunit->priv if it exists and is embedded in the expected subclass.
38 * @id: Id of the expected subclass.
39 *
40 * Return: NULL if the process is not a kunit test, and NULL if the
41 * current kunit->priv pointer is not pointing to an object of the expected
42 * subclass. A pointer to the embedded struct xe_test_priv otherwise.
43 */
44static inline struct xe_test_priv *
45xe_cur_kunit_priv(enum xe_test_priv_id id)
46{
47 struct xe_test_priv *priv;
48
49 if (!kunit_get_current_test())
50 return NULL;
51
52 priv = kunit_get_current_test()->priv;
53 return priv->id == id ? priv : NULL;
54}
55
56#else /* if IS_ENABLED(CONFIG_DRM_XE_KUNIT_TEST) */
57
58#define XE_TEST_DECLARE(x)
59#define XE_TEST_ONLY(x) 0
60#define xe_cur_kunit_priv(_id) NULL
61
62#endif
63#endif