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
11static 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
18static struct drm_i915_gem_object *
19mock_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
46static 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
52struct intel_memory_region *
53mock_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