12 #include <linux/mailbox/zynqmp-ipi-message.h>
22 /* IPI buffer MAX length */
143  * @ipi: pointer to mailbox information
156 	struct mbox_info *ipi;  member
203 	struct mbox_info *ipi;  in handle_event_notified()  local
206 	ipi = container_of(work, struct mbox_info, mbox_work);  in handle_event_notified()
207 	rproc = ipi->r5_core->rproc;  in handle_event_notified()
210 	 * We only use IPI for interrupt. The RPU firmware side may or may  in handle_event_notified()
211 	 * not write the notifyid when it trigger IPI.  in handle_event_notified()
224  * Receive data from ipi buffer, ack interrupt and then
230 	struct mbox_info *ipi;  in zynqmp_r5_mb_rx_cb()  local
233 	ipi = container_of(cl, struct mbox_info, mbox_cl);  in zynqmp_r5_mb_rx_cb()
235 	/* copy data from ipi buffer to r5_core */  in zynqmp_r5_mb_rx_cb()
237 	buf_msg = (struct zynqmp_ipi_message *)ipi->rx_mc_buf;  in zynqmp_r5_mb_rx_cb()
248 	if (mbox_send_message(ipi->rx_chan, NULL) < 0)  in zynqmp_r5_mb_rx_cb()
251 	schedule_work(&ipi->mbox_work);  in zynqmp_r5_mb_rx_cb()
266 	struct mbox_info *ipi;  in zynqmp_r5_setup_mbox()  local
268 	ipi = kzalloc(sizeof(*ipi), GFP_KERNEL);  in zynqmp_r5_setup_mbox()
269 	if (!ipi)  in zynqmp_r5_setup_mbox()
272 	mbox_cl = &ipi->mbox_cl;  in zynqmp_r5_setup_mbox()
280 	ipi->tx_chan = mbox_request_channel_byname(mbox_cl, "tx");  in zynqmp_r5_setup_mbox()
281 	if (IS_ERR(ipi->tx_chan)) {  in zynqmp_r5_setup_mbox()
282 		ipi->tx_chan = NULL;  in zynqmp_r5_setup_mbox()
283 		kfree(ipi);  in zynqmp_r5_setup_mbox()
288 	ipi->rx_chan = mbox_request_channel_byname(mbox_cl, "rx");  in zynqmp_r5_setup_mbox()
289 	if (IS_ERR(ipi->rx_chan)) {  in zynqmp_r5_setup_mbox()
290 		mbox_free_channel(ipi->tx_chan);  in zynqmp_r5_setup_mbox()
291 		ipi->rx_chan = NULL;  in zynqmp_r5_setup_mbox()
292 		ipi->tx_chan = NULL;  in zynqmp_r5_setup_mbox()
293 		kfree(ipi);  in zynqmp_r5_setup_mbox()
298 	INIT_WORK(&ipi->mbox_work, handle_event_notified);  in zynqmp_r5_setup_mbox()
300 	return ipi;  in zynqmp_r5_setup_mbox()
303 static void zynqmp_r5_free_mbox(struct mbox_info *ipi)  in zynqmp_r5_free_mbox()  argument
305 	if (!ipi)  in zynqmp_r5_free_mbox()
308 	if (ipi->tx_chan) {  in zynqmp_r5_free_mbox()
309 		mbox_free_channel(ipi->tx_chan);  in zynqmp_r5_free_mbox()
310 		ipi->tx_chan = NULL;  in zynqmp_r5_free_mbox()
313 	if (ipi->rx_chan) {  in zynqmp_r5_free_mbox()
314 		mbox_free_channel(ipi->rx_chan);  in zynqmp_r5_free_mbox()
315 		ipi->rx_chan = NULL;  in zynqmp_r5_free_mbox()
318 	kfree(ipi);  in zynqmp_r5_free_mbox()
331 	struct mbox_info *ipi;  in zynqmp_r5_rproc_kick()  local
334 	ipi = r5_core->ipi;  in zynqmp_r5_rproc_kick()
335 	if (!ipi)  in zynqmp_r5_rproc_kick()
338 	mb_msg = (struct zynqmp_ipi_message *)ipi->tx_mc_buf;  in zynqmp_r5_rproc_kick()
341 	ret = mbox_send_message(ipi->tx_chan, mb_msg);  in zynqmp_r5_rproc_kick()
1258 	struct mbox_info *ipi;  in zynqmp_r5_cluster_init()  local
1353 		ipi = zynqmp_r5_setup_mbox(&child_pdev->dev);  in zynqmp_r5_cluster_init()
1354 		if (ipi) {  in zynqmp_r5_cluster_init()
1355 			r5_cores[i]->ipi = ipi;  in zynqmp_r5_cluster_init()
1356 			ipi->r5_core = r5_cores[i];  in zynqmp_r5_cluster_init()
1396 			zynqmp_r5_free_mbox(r5_cores[i]->ipi);  in zynqmp_r5_cluster_init()
1421 		zynqmp_r5_free_mbox(r5_core->ipi);  in zynqmp_r5_cluster_exit()