1 // SPDX-License-Identifier: MIT 2 /* 3 * Copyright © 2019 Intel Corporation 4 */ 5 6 #include "gem/i915_gem_region.h" 7 #include "intel_memory_region.h" 8 9 #include "mock_region.h" 10 11 static const struct drm_i915_gem_object_ops mock_region_obj_ops = { 12 .name = "mock-region", 13 .get_pages = i915_gem_object_get_pages_buddy, 14 .put_pages = i915_gem_object_put_pages_buddy, 15 .release = i915_gem_object_release_memory_region, 16 }; 17 18 static struct drm_i915_gem_object * 19 mock_object_create(struct intel_memory_region *mem, 20 resource_size_t size, 21 unsigned int flags) 22 { 23 static struct lock_class_key lock_class; 24 struct drm_i915_private *i915 = mem->i915; 25 struct drm_i915_gem_object *obj; 26 27 if (size > BIT(mem->mm.max_order) * mem->mm.chunk_size) 28 return ERR_PTR(-E2BIG); 29 30 obj = i915_gem_object_alloc(); 31 if (!obj) 32 return ERR_PTR(-ENOMEM); 33 34 drm_gem_private_object_init(&i915->drm, &obj->base, size); 35 i915_gem_object_init(obj, &mock_region_obj_ops, &lock_class); 36 37 obj->read_domains = I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT; 38 39 i915_gem_object_set_cache_coherency(obj, I915_CACHE_NONE); 40 41 i915_gem_object_init_memory_region(obj, mem, flags); 42 43 return obj; 44 } 45 46 static const struct intel_memory_region_ops mock_region_ops = { 47 .init = intel_memory_region_init_buddy, 48 .release = intel_memory_region_release_buddy, 49 .create_object = mock_object_create, 50 }; 51 52 struct intel_memory_region * 53 mock_region_create(struct drm_i915_private *i915, 54 resource_size_t start, 55 resource_size_t size, 56 resource_size_t min_page_size, 57 resource_size_t io_start) 58 { 59 return intel_memory_region_create(i915, start, size, min_page_size, 60 io_start, &mock_region_ops); 61 } 62