15 static int init_fake_lmem_bar(struct intel_memory_region *mem)  in init_fake_lmem_bar()  argument
17 	struct drm_i915_private *i915 = mem->i915;  in init_fake_lmem_bar()
24 	mem->fake_mappable.start = 0;  in init_fake_lmem_bar()
25 	mem->fake_mappable.size = resource_size(&mem->region);  in init_fake_lmem_bar()
26 	mem->fake_mappable.color = I915_COLOR_UNEVICTABLE;  in init_fake_lmem_bar()
28 	ret = drm_mm_reserve_node(&ggtt->vm.mm, &mem->fake_mappable);  in init_fake_lmem_bar()
32 	mem->remap_addr = dma_map_resource(i915->drm.dev,  in init_fake_lmem_bar()
33 					   mem->region.start,  in init_fake_lmem_bar()
34 					   mem->fake_mappable.size,  in init_fake_lmem_bar()
37 	if (dma_mapping_error(i915->drm.dev, mem->remap_addr)) {  in init_fake_lmem_bar()
38 		drm_mm_remove_node(&mem->fake_mappable);  in init_fake_lmem_bar()
42 	for (n = 0; n < mem->fake_mappable.size >> PAGE_SHIFT; ++n) {  in init_fake_lmem_bar()
44 				     mem->remap_addr + (n << PAGE_SHIFT),  in init_fake_lmem_bar()
49 	mem->region = (struct resource)DEFINE_RES_MEM(mem->remap_addr,  in init_fake_lmem_bar()
50 						      mem->fake_mappable.size);  in init_fake_lmem_bar()
55 static void release_fake_lmem_bar(struct intel_memory_region *mem)  in release_fake_lmem_bar()  argument
57 	if (!drm_mm_node_allocated(&mem->fake_mappable))  in release_fake_lmem_bar()
60 	drm_mm_remove_node(&mem->fake_mappable);  in release_fake_lmem_bar()
62 	dma_unmap_resource(mem->i915->drm.dev,  in release_fake_lmem_bar()
63 			   mem->remap_addr,  in release_fake_lmem_bar()
64 			   mem->fake_mappable.size,  in release_fake_lmem_bar()
70 region_lmem_release(struct intel_memory_region *mem)  in region_lmem_release()  argument
72 	intel_region_ttm_fini(mem);  in region_lmem_release()
73 	io_mapping_fini(&mem->iomap);  in region_lmem_release()
74 	release_fake_lmem_bar(mem);  in region_lmem_release()
78 region_lmem_init(struct intel_memory_region *mem)  in region_lmem_init()  argument
82 	if (mem->i915->params.fake_lmem_start) {  in region_lmem_init()
83 		ret = init_fake_lmem_bar(mem);  in region_lmem_init()
87 	if (!io_mapping_init_wc(&mem->iomap,  in region_lmem_init()
88 				mem->io_start,  in region_lmem_init()
89 				resource_size(&mem->region))) {  in region_lmem_init()
94 	ret = intel_region_ttm_init(mem);  in region_lmem_init()
101 	io_mapping_fini(&mem->iomap);  in region_lmem_init()
103 	release_fake_lmem_bar(mem);  in region_lmem_init()
119 	struct intel_memory_region *mem;  in intel_gt_setup_fake_lmem()  local
137 	mem = intel_memory_region_create(i915,  in intel_gt_setup_fake_lmem()
145 	if (!IS_ERR(mem)) {  in intel_gt_setup_fake_lmem()
147 			 &mem->region);  in intel_gt_setup_fake_lmem()
150 			(u64)mem->io_start);  in intel_gt_setup_fake_lmem()
152 			 (u64)resource_size(&mem->region));  in intel_gt_setup_fake_lmem()
155 	return mem;  in intel_gt_setup_fake_lmem()
174 				 struct intel_memory_region *mem)  in reserve_lowmem_region()  argument
183 	ret = intel_memory_region_reserve(mem, reserve_start, reserve_size);  in reserve_lowmem_region()
195 	struct intel_memory_region *mem;  in setup_lmem()  local
210 	mem = intel_memory_region_create(i915,  in setup_lmem()
218 	if (IS_ERR(mem))  in setup_lmem()
219 		return mem;  in setup_lmem()
221 	err = reserve_lowmem_region(uncore, mem);  in setup_lmem()
225 	drm_dbg(&i915->drm, "Local memory: %pR\n", &mem->region);  in setup_lmem()
227 		&mem->io_start);  in setup_lmem()
231 	return mem;  in setup_lmem()
234 	intel_memory_region_put(mem);  in setup_lmem()