OpenCloudOS-Kernel/drivers/gpu/drm/i915/i915_gem_dmabuf.h

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/*
* Copyright 2016 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
*/
#ifndef _I915_GEM_DMABUF_H_
#define _I915_GEM_DMABUF_H_
#include <linux/dma-buf.h>
static inline struct reservation_object *
i915_gem_object_get_dmabuf_resv(struct drm_i915_gem_object *obj)
{
struct dma_buf *dma_buf;
if (obj->base.dma_buf)
dma_buf = obj->base.dma_buf;
else if (obj->base.import_attach)
dma_buf = obj->base.import_attach->dmabuf;
else
return NULL;
return dma_buf->resv;
}
#endif