539  * Optional pinning of buffers is handled at dma-buf attach and detach time in
566  * drm_gem_map_attach - dma_buf attach implementation for GEM
567  * @dma_buf: buffer to attach device to
568  * @attach: buffer attachment data
571  * used as the &dma_buf_ops.attach callback. Must be used together with
577 		       struct dma_buf_attachment *attach)  in drm_gem_map_attach()  argument
588  * @attach: attachment to be detached
595 			struct dma_buf_attachment *attach)  in drm_gem_map_detach()  argument
605  * @attach: attachment whose scatterlist is to be returned
615 struct sg_table *drm_gem_map_dma_buf(struct dma_buf_attachment *attach,  in drm_gem_map_dma_buf()  argument
618 	struct drm_gem_object *obj = attach->dmabuf->priv;  in drm_gem_map_dma_buf()
630 	ret = dma_map_sgtable(attach->dev, sgt, dir,  in drm_gem_map_dma_buf()
644  * @attach: attachment to unmap buffer from
650 void drm_gem_unmap_dma_buf(struct dma_buf_attachment *attach,  in drm_gem_unmap_dma_buf()  argument
657 	dma_unmap_sgtable(attach->dev, sgt, dir, DMA_ATTR_SKIP_CPU_SYNC);  in drm_gem_unmap_dma_buf()
785 	.attach = drm_gem_map_attach,
896  * @attach_dev: struct device to dma_buf attach
910 	struct dma_buf_attachment *attach;  in drm_gem_prime_import_dev()  local
930 	attach = dma_buf_attach(dma_buf, attach_dev);  in drm_gem_prime_import_dev()
931 	if (IS_ERR(attach))  in drm_gem_prime_import_dev()
932 		return ERR_CAST(attach);  in drm_gem_prime_import_dev()
936 	sgt = dma_buf_map_attachment(attach, DMA_BIDIRECTIONAL);  in drm_gem_prime_import_dev()
942 	obj = dev->driver->gem_prime_import_sg_table(dev, attach, sgt);  in drm_gem_prime_import_dev()
948 	obj->import_attach = attach;  in drm_gem_prime_import_dev()
954 	dma_buf_unmap_attachment(attach, sgt, DMA_BIDIRECTIONAL);  in drm_gem_prime_import_dev()
956 	dma_buf_detach(dma_buf, attach);  in drm_gem_prime_import_dev()
1033 	struct dma_buf_attachment *attach;  in drm_prime_gem_destroy()  local
1036 	attach = obj->import_attach;  in drm_prime_gem_destroy()
1038 		dma_buf_unmap_attachment(attach, sg, DMA_BIDIRECTIONAL);  in drm_prime_gem_destroy()
1039 	dma_buf = attach->dmabuf;  in drm_prime_gem_destroy()
1040 	dma_buf_detach(attach->dmabuf, attach);  in drm_prime_gem_destroy()