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 enum i915_cache_level level, 31 u32 flags) 32 { 33 } 34 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 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 50 static void mock_unbind_ppgtt(struct i915_vma *vma) 51 { 52 } 53 54 static void mock_cleanup(struct i915_address_space *vm) 55 { 56 } 57 58 struct i915_hw_ppgtt * 59 mock_ppgtt(struct drm_i915_private *i915, 60 const char *name) 61 { 62 struct i915_hw_ppgtt *ppgtt; 63 64 ppgtt = kzalloc(sizeof(*ppgtt), GFP_KERNEL); 65 if (!ppgtt) 66 return NULL; 67 68 kref_init(&ppgtt->ref); 69 ppgtt->vm.i915 = i915; 70 ppgtt->vm.total = round_down(U64_MAX, PAGE_SIZE); 71 ppgtt->vm.file = ERR_PTR(-ENODEV); 72 73 i915_address_space_init(&ppgtt->vm, VM_CLASS_PPGTT); 74 75 ppgtt->vm.clear_range = nop_clear_range; 76 ppgtt->vm.insert_page = mock_insert_page; 77 ppgtt->vm.insert_entries = mock_insert_entries; 78 ppgtt->vm.cleanup = mock_cleanup; 79 80 ppgtt->vm.vma_ops.bind_vma = mock_bind_ppgtt; 81 ppgtt->vm.vma_ops.unbind_vma = mock_unbind_ppgtt; 82 ppgtt->vm.vma_ops.set_pages = ppgtt_set_pages; 83 ppgtt->vm.vma_ops.clear_pages = clear_pages; 84 85 return ppgtt; 86 } 87 88 static int mock_bind_ggtt(struct i915_vma *vma, 89 enum i915_cache_level cache_level, 90 u32 flags) 91 { 92 vma->flags |= I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND; 93 return 0; 94 } 95 96 static void mock_unbind_ggtt(struct i915_vma *vma) 97 { 98 } 99 100 void mock_init_ggtt(struct drm_i915_private *i915, struct i915_ggtt *ggtt) 101 { 102 memset(ggtt, 0, sizeof(*ggtt)); 103 104 ggtt->vm.i915 = i915; 105 ggtt->vm.is_ggtt = true; 106 107 ggtt->gmadr = (struct resource) DEFINE_RES_MEM(0, 2048 * PAGE_SIZE); 108 ggtt->mappable_end = resource_size(&ggtt->gmadr); 109 ggtt->vm.total = 4096 * PAGE_SIZE; 110 111 ggtt->vm.clear_range = nop_clear_range; 112 ggtt->vm.insert_page = mock_insert_page; 113 ggtt->vm.insert_entries = mock_insert_entries; 114 ggtt->vm.cleanup = mock_cleanup; 115 116 ggtt->vm.vma_ops.bind_vma = mock_bind_ggtt; 117 ggtt->vm.vma_ops.unbind_vma = mock_unbind_ggtt; 118 ggtt->vm.vma_ops.set_pages = ggtt_set_pages; 119 ggtt->vm.vma_ops.clear_pages = clear_pages; 120 121 i915_address_space_init(&ggtt->vm, VM_CLASS_GGTT); 122 } 123 124 void mock_fini_ggtt(struct i915_ggtt *ggtt) 125 { 126 i915_address_space_fini(&ggtt->vm); 127 } 128