a39414716c
Instead of relying on the DRM functions just implement our own import
functions. This prepares support for taking care of unpinned DMA-buf.
v2: enable for all exporters, not just amdgpu, fix invalidation
handling, lock reservation object while setting callback
v3: change to new dma_buf attach interface
v4: split out from unpinned DMA-buf work
v5: rebased and cleanup on new DMA-buf interface
v6: squash with invalidation callback change,
stop using _(map|unmap)_locked
v7: drop invalidations when the BO is already in system domain
v8: rebase on new DMA-buf patch and drop move notification
v9: cleanup comments
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/337948/
40 lines
1.7 KiB
C
40 lines
1.7 KiB
C
/*
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* Copyright 2019 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef __AMDGPU_DMA_BUF_H__
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#define __AMDGPU_DMA_BUF_H__
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#include <drm/drm_gem.h>
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struct dma_buf *amdgpu_gem_prime_export(struct drm_gem_object *gobj,
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int flags);
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struct drm_gem_object *amdgpu_gem_prime_import(struct drm_device *dev,
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struct dma_buf *dma_buf);
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void *amdgpu_gem_prime_vmap(struct drm_gem_object *obj);
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void amdgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
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int amdgpu_gem_prime_mmap(struct drm_gem_object *obj,
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struct vm_area_struct *vma);
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extern const struct dma_buf_ops amdgpu_dmabuf_ops;
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#endif
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