1 /* $NetBSD: i915_gem_object.c,v 1.2 2021/12/18 23:45:30 riastradh Exp $ */
2
3 /*
4 * SPDX-License-Identifier: MIT
5 *
6 * Copyright © 2016 Intel Corporation
7 */
8
9 #include <sys/cdefs.h>
10 __KERNEL_RCSID(0, "$NetBSD: i915_gem_object.c,v 1.2 2021/12/18 23:45:30 riastradh Exp $");
11
12 #include "i915_selftest.h"
13
14 #include "huge_gem_object.h"
15 #include "selftests/igt_flush_test.h"
16 #include "selftests/mock_gem_device.h"
17
igt_gem_object(void * arg)18 static int igt_gem_object(void *arg)
19 {
20 struct drm_i915_private *i915 = arg;
21 struct drm_i915_gem_object *obj;
22 int err = -ENOMEM;
23
24 /* Basic test to ensure we can create an object */
25
26 obj = i915_gem_object_create_shmem(i915, PAGE_SIZE);
27 if (IS_ERR(obj)) {
28 err = PTR_ERR(obj);
29 pr_err("i915_gem_object_create failed, err=%d\n", err);
30 goto out;
31 }
32
33 err = 0;
34 i915_gem_object_put(obj);
35 out:
36 return err;
37 }
38
igt_gem_huge(void * arg)39 static int igt_gem_huge(void *arg)
40 {
41 const unsigned int nreal = 509; /* just to be awkward */
42 struct drm_i915_private *i915 = arg;
43 struct drm_i915_gem_object *obj;
44 unsigned int n;
45 int err;
46
47 /* Basic sanitycheck of our huge fake object allocation */
48
49 obj = huge_gem_object(i915,
50 nreal * PAGE_SIZE,
51 i915->ggtt.vm.total + PAGE_SIZE);
52 if (IS_ERR(obj))
53 return PTR_ERR(obj);
54
55 err = i915_gem_object_pin_pages(obj);
56 if (err) {
57 pr_err("Failed to allocate %u pages (%lu total), err=%d\n",
58 nreal, obj->base.size / PAGE_SIZE, err);
59 goto out;
60 }
61
62 for (n = 0; n < obj->base.size / PAGE_SIZE; n++) {
63 if (i915_gem_object_get_page(obj, n) !=
64 i915_gem_object_get_page(obj, n % nreal)) {
65 pr_err("Page lookup mismatch at index %u [%u]\n",
66 n, n % nreal);
67 err = -EINVAL;
68 goto out_unpin;
69 }
70 }
71
72 out_unpin:
73 i915_gem_object_unpin_pages(obj);
74 out:
75 i915_gem_object_put(obj);
76 return err;
77 }
78
i915_gem_object_mock_selftests(void)79 int i915_gem_object_mock_selftests(void)
80 {
81 static const struct i915_subtest tests[] = {
82 SUBTEST(igt_gem_object),
83 };
84 struct drm_i915_private *i915;
85 int err;
86
87 i915 = mock_gem_device();
88 if (!i915)
89 return -ENOMEM;
90
91 err = i915_subtests(tests, i915);
92
93 drm_dev_put(&i915->drm);
94 return err;
95 }
96
i915_gem_object_live_selftests(struct drm_i915_private * i915)97 int i915_gem_object_live_selftests(struct drm_i915_private *i915)
98 {
99 static const struct i915_subtest tests[] = {
100 SUBTEST(igt_gem_huge),
101 };
102
103 return i915_subtests(tests, i915);
104 }
105