1/*
2 * SPDX-License-Identifier: MIT
3 *
4 * Copyright �� 2016 Intel Corporation
5 */
6
7#include "i915_selftest.h"
8
9#include "huge_gem_object.h"
10#include "selftests/igt_flush_test.h"
11#include "selftests/mock_gem_device.h"
12
13static int igt_gem_object(void *arg)
14{
15	struct drm_i915_private *i915 = arg;
16	struct drm_i915_gem_object *obj;
17	int err;
18
19	/* Basic test to ensure we can create an object */
20
21	obj = i915_gem_object_create_shmem(i915, PAGE_SIZE);
22	if (IS_ERR(obj)) {
23		err = PTR_ERR(obj);
24		pr_err("i915_gem_object_create failed, err=%d\n", err);
25		goto out;
26	}
27
28	err = 0;
29	i915_gem_object_put(obj);
30out:
31	return err;
32}
33
34static int igt_gem_huge(void *arg)
35{
36	const unsigned long nreal = 509; /* just to be awkward */
37	struct drm_i915_private *i915 = arg;
38	struct drm_i915_gem_object *obj;
39	unsigned long n;
40	int err;
41
42	/* Basic sanitycheck of our huge fake object allocation */
43
44	obj = huge_gem_object(i915,
45			      nreal * PAGE_SIZE,
46			      to_gt(i915)->ggtt->vm.total + PAGE_SIZE);
47	if (IS_ERR(obj))
48		return PTR_ERR(obj);
49
50	err = i915_gem_object_pin_pages_unlocked(obj);
51	if (err) {
52		pr_err("Failed to allocate %lu pages (%lu total), err=%d\n",
53		       nreal, obj->base.size / PAGE_SIZE, err);
54		goto out;
55	}
56
57	for (n = 0; n < obj->base.size / PAGE_SIZE; n++) {
58		if (i915_gem_object_get_page(obj, n) !=
59		    i915_gem_object_get_page(obj, n % nreal)) {
60			pr_err("Page lookup mismatch at index %lu [%lu]\n",
61			       n, n % nreal);
62			err = -EINVAL;
63			goto out_unpin;
64		}
65	}
66
67out_unpin:
68	i915_gem_object_unpin_pages(obj);
69out:
70	i915_gem_object_put(obj);
71	return err;
72}
73
74int i915_gem_object_mock_selftests(void)
75{
76	static const struct i915_subtest tests[] = {
77		SUBTEST(igt_gem_object),
78	};
79	struct drm_i915_private *i915;
80	int err;
81
82	i915 = mock_gem_device();
83	if (!i915)
84		return -ENOMEM;
85
86	err = i915_subtests(tests, i915);
87
88	mock_destroy_device(i915);
89	return err;
90}
91
92int i915_gem_object_live_selftests(struct drm_i915_private *i915)
93{
94	static const struct i915_subtest tests[] = {
95		SUBTEST(igt_gem_huge),
96	};
97
98	return i915_live_subtests(tests, i915);
99}
100