drm: add parameter explanation for some gem dmabuf_ops (790861cc) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/gpu/drm/drm_prime.c

+13 −0

Original line number	Original line	Diff line number	Diff line
	@@ -331,6 +331,9 @@ EXPORT_SYMBOL(drm_gem_map_dma_buf);

	/**		/**
	* drm_gem_unmap_dma_buf - unmap_dma_buf implementation for GEM		* drm_gem_unmap_dma_buf - unmap_dma_buf implementation for GEM
			* @attach: attachment to unmap buffer from
			* @sgt: scatterlist info of the buffer to unmap
			* @dir: direction of DMA transfer
	*		*
	* Not implemented. The unmap is done at drm_gem_map_detach(). This can be		* Not implemented. The unmap is done at drm_gem_map_detach(). This can be
	* used as the &dma_buf_ops.unmap_dma_buf callback.		* used as the &dma_buf_ops.unmap_dma_buf callback.
	@@ -429,6 +432,8 @@ EXPORT_SYMBOL(drm_gem_dmabuf_vunmap);

	/**		/**
	* drm_gem_dmabuf_kmap_atomic - map_atomic implementation for GEM		* drm_gem_dmabuf_kmap_atomic - map_atomic implementation for GEM
			* @dma_buf: buffer to be mapped
			* @page_num: page number within the buffer
	*		*
	* Not implemented. This can be used as the &dma_buf_ops.map_atomic callback.		* Not implemented. This can be used as the &dma_buf_ops.map_atomic callback.
	*/		*/
	@@ -441,6 +446,9 @@ EXPORT_SYMBOL(drm_gem_dmabuf_kmap_atomic);

	/**		/**
	* drm_gem_dmabuf_kunmap_atomic - unmap_atomic implementation for GEM		* drm_gem_dmabuf_kunmap_atomic - unmap_atomic implementation for GEM
			* @dma_buf: buffer to be unmapped
			* @page_num: page number within the buffer
			* @addr: virtual address of the buffer
	*		*
	* Not implemented. This can be used as the &dma_buf_ops.unmap_atomic callback.		* Not implemented. This can be used as the &dma_buf_ops.unmap_atomic callback.
	*/		*/
	@@ -453,6 +461,8 @@ EXPORT_SYMBOL(drm_gem_dmabuf_kunmap_atomic);

	/**		/**
	* drm_gem_dmabuf_kmap - map implementation for GEM		* drm_gem_dmabuf_kmap - map implementation for GEM
			* @dma_buf: buffer to be mapped
			* @page_num: page number within the buffer
	*		*
	* Not implemented. This can be used as the &dma_buf_ops.map callback.		* Not implemented. This can be used as the &dma_buf_ops.map callback.
	*/		*/
	@@ -464,6 +474,9 @@ EXPORT_SYMBOL(drm_gem_dmabuf_kmap);

	/**		/**
	* drm_gem_dmabuf_kunmap - unmap implementation for GEM		* drm_gem_dmabuf_kunmap - unmap implementation for GEM
			* @dma_buf: buffer to be unmapped
			* @page_num: page number within the buffer
			* @addr: virtual address of the buffer
	*		*
	* Not implemented. This can be used as the &dma_buf_ops.unmap callback.		* Not implemented. This can be used as the &dma_buf_ops.unmap callback.
	*/		*/