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