1 /*
2 * Copyright © 2016 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 *
23 */
24
25 #include "mock_gtt.h"
26
mock_insert_page(struct i915_address_space * vm,dma_addr_t addr,u64 offset,enum i915_cache_level level,u32 flags)27 static void mock_insert_page(struct i915_address_space *vm,
28 dma_addr_t addr,
29 u64 offset,
30 enum i915_cache_level level,
31 u32 flags)
32 {
33 }
34
mock_insert_entries(struct i915_address_space * vm,struct i915_vma * vma,enum i915_cache_level level,u32 flags)35 static void mock_insert_entries(struct i915_address_space *vm,
36 struct i915_vma *vma,
37 enum i915_cache_level level, u32 flags)
38 {
39 }
40
mock_bind_ppgtt(struct i915_vma * vma,enum i915_cache_level cache_level,u32 flags)41 static int mock_bind_ppgtt(struct i915_vma *vma,
42 enum i915_cache_level cache_level,
43 u32 flags)
44 {
45 GEM_BUG_ON(flags & I915_VMA_GLOBAL_BIND);
46 vma->flags |= I915_VMA_LOCAL_BIND;
47 return 0;
48 }
49
mock_unbind_ppgtt(struct i915_vma * vma)50 static void mock_unbind_ppgtt(struct i915_vma *vma)
51 {
52 }
53
mock_cleanup(struct i915_address_space * vm)54 static void mock_cleanup(struct i915_address_space *vm)
55 {
56 }
57
mock_ppgtt(struct drm_i915_private * i915,const char * name)58 struct i915_ppgtt *mock_ppgtt(struct drm_i915_private *i915, const char *name)
59 {
60 struct i915_ppgtt *ppgtt;
61
62 ppgtt = kzalloc(sizeof(*ppgtt), GFP_KERNEL);
63 if (!ppgtt)
64 return NULL;
65
66 ppgtt->vm.i915 = i915;
67 ppgtt->vm.total = round_down(U64_MAX, PAGE_SIZE);
68 ppgtt->vm.file = ERR_PTR(-ENODEV);
69
70 i915_address_space_init(&ppgtt->vm, VM_CLASS_PPGTT);
71
72 ppgtt->vm.clear_range = nop_clear_range;
73 ppgtt->vm.insert_page = mock_insert_page;
74 ppgtt->vm.insert_entries = mock_insert_entries;
75 ppgtt->vm.cleanup = mock_cleanup;
76
77 ppgtt->vm.vma_ops.bind_vma = mock_bind_ppgtt;
78 ppgtt->vm.vma_ops.unbind_vma = mock_unbind_ppgtt;
79 ppgtt->vm.vma_ops.set_pages = ppgtt_set_pages;
80 ppgtt->vm.vma_ops.clear_pages = clear_pages;
81
82 return ppgtt;
83 }
84
mock_bind_ggtt(struct i915_vma * vma,enum i915_cache_level cache_level,u32 flags)85 static int mock_bind_ggtt(struct i915_vma *vma,
86 enum i915_cache_level cache_level,
87 u32 flags)
88 {
89 vma->flags |= I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND;
90 return 0;
91 }
92
mock_unbind_ggtt(struct i915_vma * vma)93 static void mock_unbind_ggtt(struct i915_vma *vma)
94 {
95 }
96
mock_init_ggtt(struct drm_i915_private * i915,struct i915_ggtt * ggtt)97 void mock_init_ggtt(struct drm_i915_private *i915, struct i915_ggtt *ggtt)
98 {
99 memset(ggtt, 0, sizeof(*ggtt));
100
101 ggtt->vm.gt = &i915->gt;
102 ggtt->vm.i915 = i915;
103 ggtt->vm.is_ggtt = true;
104
105 ggtt->gmadr = (struct resource) DEFINE_RES_MEM(0, 2048 * PAGE_SIZE);
106 ggtt->mappable_end = resource_size(&ggtt->gmadr);
107 ggtt->vm.total = 4096 * PAGE_SIZE;
108
109 ggtt->vm.clear_range = nop_clear_range;
110 ggtt->vm.insert_page = mock_insert_page;
111 ggtt->vm.insert_entries = mock_insert_entries;
112 ggtt->vm.cleanup = mock_cleanup;
113
114 ggtt->vm.vma_ops.bind_vma = mock_bind_ggtt;
115 ggtt->vm.vma_ops.unbind_vma = mock_unbind_ggtt;
116 ggtt->vm.vma_ops.set_pages = ggtt_set_pages;
117 ggtt->vm.vma_ops.clear_pages = clear_pages;
118
119 i915_address_space_init(&ggtt->vm, VM_CLASS_GGTT);
120
121 intel_gt_init_hw(i915);
122 }
123
mock_fini_ggtt(struct i915_ggtt * ggtt)124 void mock_fini_ggtt(struct i915_ggtt *ggtt)
125 {
126 i915_address_space_fini(&ggtt->vm);
127 }
128