1/*	$NetBSD: mock_region.c,v 1.2 2021/12/18 23:45:31 riastradh Exp $	*/
2
3// SPDX-License-Identifier: MIT
4/*
5 * Copyright �� 2019 Intel Corporation
6 */
7
8#include <sys/cdefs.h>
9__KERNEL_RCSID(0, "$NetBSD: mock_region.c,v 1.2 2021/12/18 23:45:31 riastradh Exp $");
10
11#include "gem/i915_gem_region.h"
12#include "intel_memory_region.h"
13
14#include "mock_region.h"
15
16static const struct drm_i915_gem_object_ops mock_region_obj_ops = {
17	.get_pages = i915_gem_object_get_pages_buddy,
18	.put_pages = i915_gem_object_put_pages_buddy,
19	.release = i915_gem_object_release_memory_region,
20};
21
22static struct drm_i915_gem_object *
23mock_object_create(struct intel_memory_region *mem,
24		   resource_size_t size,
25		   unsigned int flags)
26{
27	static struct lock_class_key lock_class;
28	struct drm_i915_private *i915 = mem->i915;
29	struct drm_i915_gem_object *obj;
30
31	if (size > BIT(mem->mm.max_order) * mem->mm.chunk_size)
32		return ERR_PTR(-E2BIG);
33
34	obj = i915_gem_object_alloc();
35	if (!obj)
36		return ERR_PTR(-ENOMEM);
37
38	drm_gem_private_object_init(&i915->drm, &obj->base, size);
39	i915_gem_object_init(obj, &mock_region_obj_ops, &lock_class);
40
41	obj->read_domains = I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT;
42
43	i915_gem_object_set_cache_coherency(obj, I915_CACHE_NONE);
44
45	i915_gem_object_init_memory_region(obj, mem, flags);
46
47	return obj;
48}
49
50static const struct intel_memory_region_ops mock_region_ops = {
51	.init = intel_memory_region_init_buddy,
52	.release = intel_memory_region_release_buddy,
53	.create_object = mock_object_create,
54};
55
56struct intel_memory_region *
57mock_region_create(struct drm_i915_private *i915,
58		   resource_size_t start,
59		   resource_size_t size,
60		   resource_size_t min_page_size,
61		   resource_size_t io_start)
62{
63	return intel_memory_region_create(i915, start, size, min_page_size,
64					  io_start, &mock_region_ops);
65}
66