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 | |
27 | static void mock_insert_page(struct i915_address_space *vm, |
28 | dma_addr_t addr, |
29 | u64 offset, |
30 | unsigned int pat_index, |
31 | u32 flags) |
32 | { |
33 | } |
34 | |
35 | static void mock_insert_entries(struct i915_address_space *vm, |
36 | struct i915_vma_resource *vma_res, |
37 | unsigned int pat_index, u32 flags) |
38 | { |
39 | } |
40 | |
41 | static void mock_bind_ppgtt(struct i915_address_space *vm, |
42 | struct i915_vm_pt_stash *stash, |
43 | struct i915_vma_resource *vma_res, |
44 | unsigned int pat_index, |
45 | u32 flags) |
46 | { |
47 | GEM_BUG_ON(flags & I915_VMA_GLOBAL_BIND); |
48 | vma_res->bound_flags |= flags; |
49 | } |
50 | |
51 | static void mock_unbind_ppgtt(struct i915_address_space *vm, |
52 | struct i915_vma_resource *vma_res) |
53 | { |
54 | } |
55 | |
56 | static void mock_cleanup(struct i915_address_space *vm) |
57 | { |
58 | } |
59 | |
60 | static void mock_clear_range(struct i915_address_space *vm, |
61 | u64 start, u64 length) |
62 | { |
63 | } |
64 | |
65 | struct i915_ppgtt *mock_ppgtt(struct drm_i915_private *i915, const char *name) |
66 | { |
67 | struct i915_ppgtt *ppgtt; |
68 | |
69 | ppgtt = kzalloc(size: sizeof(*ppgtt), GFP_KERNEL); |
70 | if (!ppgtt) |
71 | return NULL; |
72 | |
73 | ppgtt->vm.gt = to_gt(i915); |
74 | ppgtt->vm.i915 = i915; |
75 | ppgtt->vm.total = round_down(U64_MAX, PAGE_SIZE); |
76 | ppgtt->vm.dma = i915->drm.dev; |
77 | |
78 | i915_address_space_init(vm: &ppgtt->vm, VM_CLASS_PPGTT); |
79 | |
80 | ppgtt->vm.alloc_pt_dma = alloc_pt_dma; |
81 | ppgtt->vm.alloc_scratch_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 | |
91 | return ppgtt; |
92 | } |
93 | |
94 | static void mock_bind_ggtt(struct i915_address_space *vm, |
95 | struct i915_vm_pt_stash *stash, |
96 | struct i915_vma_resource *vma_res, |
97 | unsigned int pat_index, |
98 | u32 flags) |
99 | { |
100 | } |
101 | |
102 | static void mock_unbind_ggtt(struct i915_address_space *vm, |
103 | struct i915_vma_resource *vma_res) |
104 | { |
105 | } |
106 | |
107 | void mock_init_ggtt(struct intel_gt *gt) |
108 | { |
109 | struct i915_ggtt *ggtt = gt->ggtt; |
110 | |
111 | ggtt->vm.gt = gt; |
112 | ggtt->vm.i915 = gt->i915; |
113 | ggtt->vm.is_ggtt = true; |
114 | |
115 | ggtt->gmadr = DEFINE_RES_MEM(0, 2048 * PAGE_SIZE); |
116 | ggtt->mappable_end = resource_size(res: &ggtt->gmadr); |
117 | ggtt->vm.total = 4096 * PAGE_SIZE; |
118 | |
119 | ggtt->vm.alloc_pt_dma = alloc_pt_dma; |
120 | ggtt->vm.alloc_scratch_dma = alloc_pt_dma; |
121 | |
122 | ggtt->vm.clear_range = mock_clear_range; |
123 | ggtt->vm.insert_page = mock_insert_page; |
124 | ggtt->vm.insert_entries = mock_insert_entries; |
125 | ggtt->vm.cleanup = mock_cleanup; |
126 | |
127 | ggtt->vm.vma_ops.bind_vma = mock_bind_ggtt; |
128 | ggtt->vm.vma_ops.unbind_vma = mock_unbind_ggtt; |
129 | |
130 | i915_address_space_init(vm: &ggtt->vm, VM_CLASS_GGTT); |
131 | } |
132 | |
133 | void mock_fini_ggtt(struct i915_ggtt *ggtt) |
134 | { |
135 | i915_address_space_fini(vm: &ggtt->vm); |
136 | } |
137 | |