542  * Optional pinning of buffers is handled at dma-buf attach and detach time in
570  * drm_gem_map_attach - dma_buf attach implementation for GEM
571  * @dma_buf: buffer to attach device to
572  * @attach: buffer attachment data
575  * used as the &dma_buf_ops.attach callback. Must be used together with
581 		       struct dma_buf_attachment *attach)  in drm_gem_map_attach()  argument
600  * @attach: attachment to be detached
607 			struct dma_buf_attachment *attach)  in drm_gem_map_detach()  argument
617  * @attach: attachment whose scatterlist is to be returned
627 struct sg_table *drm_gem_map_dma_buf(struct dma_buf_attachment *attach,  in drm_gem_map_dma_buf()  argument
630 	struct drm_gem_object *obj = attach->dmabuf->priv;  in drm_gem_map_dma_buf()
644 	ret = dma_map_sgtable(attach->dev, sgt, dir,  in drm_gem_map_dma_buf()
658  * @attach: attachment to unmap buffer from
664 void drm_gem_unmap_dma_buf(struct dma_buf_attachment *attach,  in drm_gem_unmap_dma_buf()  argument
671 	dma_unmap_sgtable(attach->dev, sgt, dir, DMA_ATTR_SKIP_CPU_SYNC);  in drm_gem_unmap_dma_buf()
790 	.attach = drm_gem_map_attach,
900  * @attach_dev: struct device to dma_buf attach
914 	struct dma_buf_attachment *attach;  in drm_gem_prime_import_dev()  local
934 	attach = dma_buf_attach(dma_buf, attach_dev);  in drm_gem_prime_import_dev()
935 	if (IS_ERR(attach))  in drm_gem_prime_import_dev()
936 		return ERR_CAST(attach);  in drm_gem_prime_import_dev()
940 	sgt = dma_buf_map_attachment_unlocked(attach, DMA_BIDIRECTIONAL);  in drm_gem_prime_import_dev()
946 	obj = dev->driver->gem_prime_import_sg_table(dev, attach, sgt);  in drm_gem_prime_import_dev()
952 	obj->import_attach = attach;  in drm_gem_prime_import_dev()
958 	dma_buf_unmap_attachment_unlocked(attach, sgt, DMA_BIDIRECTIONAL);  in drm_gem_prime_import_dev()
960 	dma_buf_detach(dma_buf, attach);  in drm_gem_prime_import_dev()
1051 	struct dma_buf_attachment *attach;  in drm_prime_gem_destroy()  local
1054 	attach = obj->import_attach;  in drm_prime_gem_destroy()
1056 		dma_buf_unmap_attachment_unlocked(attach, sg, DMA_BIDIRECTIONAL);  in drm_prime_gem_destroy()
1057 	dma_buf = attach->dmabuf;  in drm_prime_gem_destroy()
1058 	dma_buf_detach(attach->dmabuf, attach);  in drm_prime_gem_destroy()