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_address_space * vm,struct i915_vm_pt_stash * stash,struct i915_vma * vma,enum i915_cache_level cache_level,u32 flags)41 static void mock_bind_ppgtt(struct i915_address_space *vm,
42 struct i915_vm_pt_stash *stash,
43 struct i915_vma *vma,
44 enum i915_cache_level cache_level,
45 u32 flags)
46 {
47 GEM_BUG_ON(flags & I915_VMA_GLOBAL_BIND);
48 set_bit(I915_VMA_LOCAL_BIND_BIT, __i915_vma_flags(vma));
49 }
50
mock_unbind_ppgtt(struct i915_address_space * vm,struct i915_vma * vma)51 static void mock_unbind_ppgtt(struct i915_address_space *vm,
52 struct i915_vma *vma)
53 {
54 }
55
mock_cleanup(struct i915_address_space * vm)56 static void mock_cleanup(struct i915_address_space *vm)
57 {
58 }
59
mock_clear_range(struct i915_address_space * vm,u64 start,u64 length)60 static void mock_clear_range(struct i915_address_space *vm,
61 u64 start, u64 length)
62 {
63 }
64
mock_ppgtt(struct drm_i915_private * i915,const char * name)65 struct i915_ppgtt *mock_ppgtt(struct drm_i915_private *i915, const char *name)
66 {
67 struct i915_ppgtt *ppgtt;
68
69 ppgtt = kzalloc(sizeof(*ppgtt), GFP_KERNEL);
70 if (!ppgtt)
71 return NULL;
72
73 ppgtt->vm.gt = &i915->gt;
74 ppgtt->vm.i915 = i915;
75 ppgtt->vm.total = round_down(U64_MAX, PAGE_SIZE);
76 ppgtt->vm.file = ERR_PTR(-ENODEV);
77 ppgtt->vm.dma = &i915->drm.pdev->dev;
78
79 i915_address_space_init(&ppgtt->vm, VM_CLASS_PPGTT);
80
81 ppgtt->vm.alloc_pt_dma = alloc_pt_dma;
82
83 ppgtt->vm.clear_range = mock_clear_range;
84 ppgtt->vm.insert_page = mock_insert_page;
85 ppgtt->vm.insert_entries = mock_insert_entries;
86 ppgtt->vm.cleanup = mock_cleanup;
87
88 ppgtt->vm.vma_ops.bind_vma = mock_bind_ppgtt;
89 ppgtt->vm.vma_ops.unbind_vma = mock_unbind_ppgtt;
90 ppgtt->vm.vma_ops.set_pages = ppgtt_set_pages;
91 ppgtt->vm.vma_ops.clear_pages = clear_pages;
92
93 return ppgtt;
94 }
95
mock_bind_ggtt(struct i915_address_space * vm,struct i915_vm_pt_stash * stash,struct i915_vma * vma,enum i915_cache_level cache_level,u32 flags)96 static void mock_bind_ggtt(struct i915_address_space *vm,
97 struct i915_vm_pt_stash *stash,
98 struct i915_vma *vma,
99 enum i915_cache_level cache_level,
100 u32 flags)
101 {
102 }
103
mock_unbind_ggtt(struct i915_address_space * vm,struct i915_vma * vma)104 static void mock_unbind_ggtt(struct i915_address_space *vm,
105 struct i915_vma *vma)
106 {
107 }
108
mock_init_ggtt(struct drm_i915_private * i915,struct i915_ggtt * ggtt)109 void mock_init_ggtt(struct drm_i915_private *i915, struct i915_ggtt *ggtt)
110 {
111 memset(ggtt, 0, sizeof(*ggtt));
112
113 ggtt->vm.gt = &i915->gt;
114 ggtt->vm.i915 = i915;
115 ggtt->vm.is_ggtt = true;
116
117 ggtt->gmadr = (struct resource) DEFINE_RES_MEM(0, 2048 * PAGE_SIZE);
118 ggtt->mappable_end = resource_size(&ggtt->gmadr);
119 ggtt->vm.total = 4096 * PAGE_SIZE;
120
121 ggtt->vm.alloc_pt_dma = alloc_pt_dma;
122
123 ggtt->vm.clear_range = mock_clear_range;
124 ggtt->vm.insert_page = mock_insert_page;
125 ggtt->vm.insert_entries = mock_insert_entries;
126 ggtt->vm.cleanup = mock_cleanup;
127
128 ggtt->vm.vma_ops.bind_vma = mock_bind_ggtt;
129 ggtt->vm.vma_ops.unbind_vma = mock_unbind_ggtt;
130 ggtt->vm.vma_ops.set_pages = ggtt_set_pages;
131 ggtt->vm.vma_ops.clear_pages = clear_pages;
132
133 i915_address_space_init(&ggtt->vm, VM_CLASS_GGTT);
134 i915->gt.ggtt = ggtt;
135 }
136
mock_fini_ggtt(struct i915_ggtt * ggtt)137 void mock_fini_ggtt(struct i915_ggtt *ggtt)
138 {
139 i915_address_space_fini(&ggtt->vm);
140 }
141
