blob: 34932871b3a5987d238038f6c6541fbe58244e64 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
* SPDX-License-Identifier: MIT
*
* Copyright © 2016 Intel Corporation
*/
#include "i915_selftest.h"
#include "selftests/mock_gem_device.h"
static int mock_phys_object(void *arg)
{
struct drm_i915_private *i915 = arg;
struct drm_i915_gem_object *obj;
int err;
/* Create an object and bind it to a contiguous set of physical pages,
* i.e. exercise the i915_gem_object_phys API.
*/
obj = i915_gem_object_create_shmem(i915, PAGE_SIZE);
if (IS_ERR(obj)) {
err = PTR_ERR(obj);
pr_err("i915_gem_object_create failed, err=%d\n", err);
goto out;
}
err = i915_gem_object_attach_phys(obj, PAGE_SIZE);
if (err) {
pr_err("i915_gem_object_attach_phys failed, err=%d\n", err);
goto out_obj;
}
if (obj->ops != &i915_gem_phys_ops) {
pr_err("i915_gem_object_attach_phys did not create a phys object\n");
err = -EINVAL;
goto out_obj;
}
if (!atomic_read(&obj->mm.pages_pin_count)) {
pr_err("i915_gem_object_attach_phys did not pin its phys pages\n");
err = -EINVAL;
goto out_obj;
}
/* Make the object dirty so that put_pages must do copy back the data */
i915_gem_object_lock(obj);
err = i915_gem_object_set_to_gtt_domain(obj, true);
i915_gem_object_unlock(obj);
if (err) {
pr_err("i915_gem_object_set_to_gtt_domain failed with err=%d\n",
err);
goto out_obj;
}
out_obj:
i915_gem_object_put(obj);
out:
return err;
}
int i915_gem_phys_mock_selftests(void)
{
static const struct i915_subtest tests[] = {
SUBTEST(mock_phys_object),
};
struct drm_i915_private *i915;
int err;
i915 = mock_gem_device();
if (!i915)
return -ENOMEM;
err = i915_subtests(tests, i915);
drm_dev_put(&i915->drm);
return err;
}
|
