drm/vmwgfx/vmwgfx_cmdbuf.c

142  * @cb_header: Device command buffer header, allocated from a DMA pool.
167  * struct vmw_cmdbuf_dheader - Device command buffer header with inline
170  * @cb_header: Device command buffer header.
233  * @header: Pointer to the header to free.
235 static void vmw_cmdbuf_header_inline_free(struct vmw_cmdbuf_header *header)
239 	if (WARN_ON_ONCE(!header->inline_space))
242 	dheader = container_of(header->cb_header, struct vmw_cmdbuf_dheader,
244 	dma_pool_free(header->man->dheaders, dheader, header->handle);
245 	kfree(header);
252  * @header: Pointer to the header to free.
256 static void __vmw_cmdbuf_header_free(struct vmw_cmdbuf_header *header)
258 	struct vmw_cmdbuf_man *man = header->man;
262 	if (header->inline_space) {
263 		vmw_cmdbuf_header_inline_free(header);
267 	drm_mm_remove_node(&header->node);
269 	if (header->cb_header)
270 		dma_pool_free(man->headers, header->cb_header,
271 			      header->handle);
272 	kfree(header);
279  * @header: Pointer to the header to free.
281 void vmw_cmdbuf_header_free(struct vmw_cmdbuf_header *header)
283 	struct vmw_cmdbuf_man *man = header->man;
286 	if (header->inline_space) {
287 		vmw_cmdbuf_header_inline_free(header);
291 	__vmw_cmdbuf_header_free(header);
299  * @header: The header of the buffer to submit.
301 static int vmw_cmdbuf_header_submit(struct vmw_cmdbuf_header *header)
303 	struct vmw_cmdbuf_man *man = header->man;
306 	val = upper_32_bits(header->handle);
309 	val = lower_32_bits(header->handle);
310 	val |= header->cb_context & SVGA_CB_CONTEXT_MASK;
313 	return header->cb_header->status;
409 			WARN_ONCE(true, "Command buffer header error.\n");
466  * @header: The header of the buffer to submit.
469  * This function adds @header to the "submitted" queue of the command
475 			       struct vmw_cmdbuf_header *header,
478 	if (!(header->cb_header->flags & SVGA_CB_FLAG_DX_CONTEXT))
479 		header->cb_header->dxContext = 0;
480 	header->cb_context = cb_context;
481 	list_add_tail(&header->list, &man->ctx[cb_context].submitted);
531 		SVGA3dCmdHeader *header = (SVGA3dCmdHeader *)
539 		if (!vmw_cmd_describe(header, &error_cmd_size, &cmd_name)) {
852  * vmw_cmdbuf_space_pool - Set up a command buffer header with command buffer
856  * @header: Pointer to the header to set up.
861 				 struct vmw_cmdbuf_header *header,
872 	ret = vmw_cmdbuf_alloc_space(man, &header->node,  size, interruptible);
877 	header->cb_header = dma_pool_zalloc(man->headers, GFP_KERNEL,
878 					    &header->handle);
879 	if (!header->cb_header) {
884 	header->size = header->node.size << PAGE_SHIFT;
885 	cb_hdr = header->cb_header;
886 	offset = header->node.start << PAGE_SHIFT;
887 	header->cmd = man->map + offset;
900 	drm_mm_remove_node(&header->node);
907  * vmw_cmdbuf_space_inline - Set up a command buffer header with
911  * @header: Pointer to the header to set up.
915 				   struct vmw_cmdbuf_header *header,
925 				  &header->handle);
929 	header->inline_space = true;
930 	header->size = VMW_CMDBUF_INLINE_SIZE;
932 	header->cb_header = cb_hdr;
933 	header->cmd = dheader->cmd;
936 	cb_hdr->ptr.pa = (u64)header->handle +
943  * vmw_cmdbuf_alloc - Allocate a command buffer header complete with
949  * @p_header: points to a header pointer to populate on successful return.
952  * returns an error pointer. The header pointer returned in @p_header should
959 	struct vmw_cmdbuf_header *header;
964 	header = kzalloc(sizeof(*header), GFP_KERNEL);
965 	if (!header)
969 		ret = vmw_cmdbuf_space_inline(man, header, size);
971 		ret = vmw_cmdbuf_space_pool(man, header, size, interruptible);
974 		kfree(header);
978 	header->man = man;
979 	INIT_LIST_HEAD(&header->list);
980 	header->cb_header->status = SVGA_CB_STATUS_NONE;
981 	*p_header = header;
983 	return header->cmd;
1067  * @header: Header of the command buffer. NULL if the current command buffer
1075 			 struct vmw_cmdbuf_header *header)
1077 	if (!header)
1080 	if (size > header->size)
1084 		header->cb_header->flags |= SVGA_CB_FLAG_DX_CONTEXT;
1085 		header->cb_header->dxContext = ctx_id;
1088 	header->reserved = size;
1089 	return header->cmd;
1097  * @header: Header of the command buffer. NULL if the current command buffer
1102 		       struct vmw_cmdbuf_header *header, bool flush)
1104 	if (!header) {
1111 	WARN_ON(size > header->reserved);
1112 	man->cur = header;
1115 		header->cb_header->flags &= ~SVGA_CB_FLAG_DX_CONTEXT;
1135 	struct vmw_cmdbuf_header *header;
1137 	void *cmd = vmw_cmdbuf_alloc(man, size, false, &header);
1143 	header->cb_header->length = size;
1144 	header->cb_context = SVGA_CB_CONTEXT_DEVICE;
1146 	status = vmw_cmdbuf_header_submit(header);
1148 	vmw_cmdbuf_header_free(header);