1 // SPDX-License-Identifier: MIT 2 /* 3 * Copyright © 2019 Intel Corporation 4 */ 5 6 #include "intel_memory_region.h" 7 #include "gem/i915_gem_region.h" 8 #include "gem/i915_gem_lmem.h" 9 #include "i915_drv.h" 10 11 const struct drm_i915_gem_object_ops i915_gem_lmem_obj_ops = { 12 .name = "i915_gem_object_lmem", 13 .flags = I915_GEM_OBJECT_HAS_IOMEM, 14 15 .get_pages = i915_gem_object_get_pages_buddy, 16 .put_pages = i915_gem_object_put_pages_buddy, 17 .release = i915_gem_object_release_memory_region, 18 }; 19 20 bool i915_gem_object_is_lmem(struct drm_i915_gem_object *obj) 21 { 22 return obj->ops == &i915_gem_lmem_obj_ops; 23 } 24 25 struct drm_i915_gem_object * 26 i915_gem_object_create_lmem(struct drm_i915_private *i915, 27 resource_size_t size, 28 unsigned int flags) 29 { 30 return i915_gem_object_create_region(i915->mm.regions[INTEL_REGION_LMEM], 31 size, flags); 32 } 33 34 int __i915_gem_lmem_object_init(struct intel_memory_region *mem, 35 struct drm_i915_gem_object *obj, 36 resource_size_t size, 37 unsigned int flags) 38 { 39 static struct lock_class_key lock_class; 40 struct drm_i915_private *i915 = mem->i915; 41 42 drm_gem_private_object_init(&i915->drm, &obj->base, size); 43 i915_gem_object_init(obj, &i915_gem_lmem_obj_ops, &lock_class); 44 45 obj->read_domains = I915_GEM_DOMAIN_WC | I915_GEM_DOMAIN_GTT; 46 47 i915_gem_object_set_cache_coherency(obj, I915_CACHE_NONE); 48 49 i915_gem_object_init_memory_region(obj, mem, flags); 50 51 return 0; 52 } 53