1 // SPDX-License-Identifier: MIT
2 /*
3 * Copyright © 2019 Intel Corporation
4 */
5
6 #include "gem/i915_gem_region.h"
7 #include "intel_memory_region.h"
8
9 #include "mock_region.h"
10
11 static const struct drm_i915_gem_object_ops mock_region_obj_ops = {
12 .name = "mock-region",
13 .get_pages = i915_gem_object_get_pages_buddy,
14 .put_pages = i915_gem_object_put_pages_buddy,
15 .release = i915_gem_object_release_memory_region,
16 };
17
18 static struct drm_i915_gem_object *
mock_object_create(struct intel_memory_region * mem,resource_size_t size,unsigned int flags)19 mock_object_create(struct intel_memory_region *mem,
20 resource_size_t size,
21 unsigned int flags)
22 {
23 static struct lock_class_key lock_class;
24 struct drm_i915_private *i915 = mem->i915;
25 struct drm_i915_gem_object *obj;
26
27 if (size > mem->mm.size)
28 return ERR_PTR(-E2BIG);
29
30 obj = i915_gem_object_alloc();
31 if (!obj)
32 return ERR_PTR(-ENOMEM);
33
34 drm_gem_private_object_init(&i915->drm, &obj->base, size);
35 i915_gem_object_init(obj, &mock_region_obj_ops, &lock_class);
36
37 obj->read_domains = I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT;
38
39 i915_gem_object_set_cache_coherency(obj, I915_CACHE_NONE);
40
41 i915_gem_object_init_memory_region(obj, mem, flags);
42
43 return obj;
44 }
45
46 static const struct intel_memory_region_ops mock_region_ops = {
47 .init = intel_memory_region_init_buddy,
48 .release = intel_memory_region_release_buddy,
49 .create_object = mock_object_create,
50 };
51
52 struct intel_memory_region *
mock_region_create(struct drm_i915_private * i915,resource_size_t start,resource_size_t size,resource_size_t min_page_size,resource_size_t io_start)53 mock_region_create(struct drm_i915_private *i915,
54 resource_size_t start,
55 resource_size_t size,
56 resource_size_t min_page_size,
57 resource_size_t io_start)
58 {
59 return intel_memory_region_create(i915, start, size, min_page_size,
60 io_start, &mock_region_ops);
61 }
62