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 | |
13 | static 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(ptr: obj)) { |
23 | err = PTR_ERR(ptr: 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); |
30 | out: |
31 | return err; |
32 | } |
33 | |
34 | static 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 | phys_size: nreal * PAGE_SIZE, |
46 | dma_size: to_gt(i915)->ggtt->vm.total + PAGE_SIZE); |
47 | if (IS_ERR(ptr: obj)) |
48 | return PTR_ERR(ptr: 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 | |
67 | out_unpin: |
68 | i915_gem_object_unpin_pages(obj); |
69 | out: |
70 | i915_gem_object_put(obj); |
71 | return err; |
72 | } |
73 | |
74 | int 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 | |
92 | int 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 | |