root/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.h

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   1 /*
   2  * Copyright 2019 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  */
  23 #ifndef __AMDGPU_DMA_BUF_H__
  24 #define __AMDGPU_DMA_BUF_H__
  25 
  26 #include <drm/drm_gem.h>
  27 
  28 struct sg_table *amdgpu_gem_prime_get_sg_table(struct drm_gem_object *obj);
  29 struct drm_gem_object *
  30 amdgpu_gem_prime_import_sg_table(struct drm_device *dev,
  31                                  struct dma_buf_attachment *attach,
  32                                  struct sg_table *sg);
  33 struct dma_buf *amdgpu_gem_prime_export(struct drm_gem_object *gobj,
  34                                         int flags);
  35 struct drm_gem_object *amdgpu_gem_prime_import(struct drm_device *dev,
  36                                             struct dma_buf *dma_buf);
  37 void *amdgpu_gem_prime_vmap(struct drm_gem_object *obj);
  38 void amdgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
  39 int amdgpu_gem_prime_mmap(struct drm_gem_object *obj,
  40                           struct vm_area_struct *vma);
  41 
  42 extern const struct dma_buf_ops amdgpu_dmabuf_ops;
  43 
  44 #endif

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