/* SPDX-License-Identifier: MIT */ /* * Copyright © 2021 Intel Corporation */ #ifndef _I915_GEM_TTM_H_ #define _I915_GEM_TTM_H_ #include "gem/i915_gem_object_types.h" /** * i915_gem_to_ttm - Convert a struct drm_i915_gem_object to a * struct ttm_buffer_object. * @obj: Pointer to the gem object. * * Return: Pointer to the embedded struct ttm_buffer_object. */ static inline struct ttm_buffer_object * i915_gem_to_ttm(struct drm_i915_gem_object *obj) { return &obj->__do_not_access; } /* * i915 ttm gem object destructor. Internal use only. */ void i915_ttm_bo_destroy(struct ttm_buffer_object *bo); /** * i915_ttm_to_gem - Convert a struct ttm_buffer_object to an embedding * struct drm_i915_gem_object. * * Return: Pointer to the embedding struct ttm_buffer_object, or NULL * if the object was not an i915 ttm object. */ static inline struct drm_i915_gem_object * i915_ttm_to_gem(struct ttm_buffer_object *bo) { if (GEM_WARN_ON(bo->destroy != i915_ttm_bo_destroy)) return NULL; return container_of(bo, struct drm_i915_gem_object, __do_not_access); } int __i915_gem_ttm_object_init(struct intel_memory_region *mem, struct drm_i915_gem_object *obj, resource_size_t size, resource_size_t page_size, unsigned int flags); #endif