1*4882a593Smuzhiyun // SPDX-License-Identifier: MIT
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright © 2019 Intel Corporation
4*4882a593Smuzhiyun */
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun #include "gem/i915_gem_region.h"
7*4882a593Smuzhiyun #include "intel_memory_region.h"
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include "mock_region.h"
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun static const struct drm_i915_gem_object_ops mock_region_obj_ops = {
12*4882a593Smuzhiyun .name = "mock-region",
13*4882a593Smuzhiyun .get_pages = i915_gem_object_get_pages_buddy,
14*4882a593Smuzhiyun .put_pages = i915_gem_object_put_pages_buddy,
15*4882a593Smuzhiyun .release = i915_gem_object_release_memory_region,
16*4882a593Smuzhiyun };
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun static struct drm_i915_gem_object *
mock_object_create(struct intel_memory_region * mem,resource_size_t size,unsigned int flags)19*4882a593Smuzhiyun mock_object_create(struct intel_memory_region *mem,
20*4882a593Smuzhiyun resource_size_t size,
21*4882a593Smuzhiyun unsigned int flags)
22*4882a593Smuzhiyun {
23*4882a593Smuzhiyun static struct lock_class_key lock_class;
24*4882a593Smuzhiyun struct drm_i915_private *i915 = mem->i915;
25*4882a593Smuzhiyun struct drm_i915_gem_object *obj;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun if (size > mem->mm.size)
28*4882a593Smuzhiyun return ERR_PTR(-E2BIG);
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun obj = i915_gem_object_alloc();
31*4882a593Smuzhiyun if (!obj)
32*4882a593Smuzhiyun return ERR_PTR(-ENOMEM);
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun drm_gem_private_object_init(&i915->drm, &obj->base, size);
35*4882a593Smuzhiyun i915_gem_object_init(obj, &mock_region_obj_ops, &lock_class);
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun obj->read_domains = I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT;
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun i915_gem_object_set_cache_coherency(obj, I915_CACHE_NONE);
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun i915_gem_object_init_memory_region(obj, mem, flags);
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun return obj;
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun static const struct intel_memory_region_ops mock_region_ops = {
47*4882a593Smuzhiyun .init = intel_memory_region_init_buddy,
48*4882a593Smuzhiyun .release = intel_memory_region_release_buddy,
49*4882a593Smuzhiyun .create_object = mock_object_create,
50*4882a593Smuzhiyun };
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun 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*4882a593Smuzhiyun mock_region_create(struct drm_i915_private *i915,
54*4882a593Smuzhiyun resource_size_t start,
55*4882a593Smuzhiyun resource_size_t size,
56*4882a593Smuzhiyun resource_size_t min_page_size,
57*4882a593Smuzhiyun resource_size_t io_start)
58*4882a593Smuzhiyun {
59*4882a593Smuzhiyun return intel_memory_region_create(i915, start, size, min_page_size,
60*4882a593Smuzhiyun io_start, &mock_region_ops);
61*4882a593Smuzhiyun }
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