12 #include <linux/mailbox/zynqmp-ipi-message.h>
22 /* IPI buffer MAX length */
94  * @ipi: pointer to mailbox information
103 	struct mbox_info *ipi;  member
150 	struct mbox_info *ipi;  in handle_event_notified()  local
153 	ipi = container_of(work, struct mbox_info, mbox_work);  in handle_event_notified()
154 	rproc = ipi->r5_core->rproc;  in handle_event_notified()
157 	 * We only use IPI for interrupt. The RPU firmware side may or may  in handle_event_notified()
158 	 * not write the notifyid when it trigger IPI.  in handle_event_notified()
171  * Receive data from ipi buffer, ack interrupt and then
177 	struct mbox_info *ipi;  in zynqmp_r5_mb_rx_cb()  local
180 	ipi = container_of(cl, struct mbox_info, mbox_cl);  in zynqmp_r5_mb_rx_cb()
182 	/* copy data from ipi buffer to r5_core */  in zynqmp_r5_mb_rx_cb()
184 	buf_msg = (struct zynqmp_ipi_message *)ipi->rx_mc_buf;  in zynqmp_r5_mb_rx_cb()
195 	if (mbox_send_message(ipi->rx_chan, NULL) < 0)  in zynqmp_r5_mb_rx_cb()
198 	schedule_work(&ipi->mbox_work);  in zynqmp_r5_mb_rx_cb()
213 	struct mbox_info *ipi;  in zynqmp_r5_setup_mbox()  local
215 	ipi = kzalloc(sizeof(*ipi), GFP_KERNEL);  in zynqmp_r5_setup_mbox()
216 	if (!ipi)  in zynqmp_r5_setup_mbox()
219 	mbox_cl = &ipi->mbox_cl;  in zynqmp_r5_setup_mbox()
227 	ipi->tx_chan = mbox_request_channel_byname(mbox_cl, "tx");  in zynqmp_r5_setup_mbox()
228 	if (IS_ERR(ipi->tx_chan)) {  in zynqmp_r5_setup_mbox()
229 		ipi->tx_chan = NULL;  in zynqmp_r5_setup_mbox()
230 		kfree(ipi);  in zynqmp_r5_setup_mbox()
235 	ipi->rx_chan = mbox_request_channel_byname(mbox_cl, "rx");  in zynqmp_r5_setup_mbox()
236 	if (IS_ERR(ipi->rx_chan)) {  in zynqmp_r5_setup_mbox()
237 		mbox_free_channel(ipi->tx_chan);  in zynqmp_r5_setup_mbox()
238 		ipi->rx_chan = NULL;  in zynqmp_r5_setup_mbox()
239 		ipi->tx_chan = NULL;  in zynqmp_r5_setup_mbox()
240 		kfree(ipi);  in zynqmp_r5_setup_mbox()
245 	INIT_WORK(&ipi->mbox_work, handle_event_notified);  in zynqmp_r5_setup_mbox()
247 	return ipi;  in zynqmp_r5_setup_mbox()
250 static void zynqmp_r5_free_mbox(struct mbox_info *ipi)  in zynqmp_r5_free_mbox()  argument
252 	if (!ipi)  in zynqmp_r5_free_mbox()
255 	if (ipi->tx_chan) {  in zynqmp_r5_free_mbox()
256 		mbox_free_channel(ipi->tx_chan);  in zynqmp_r5_free_mbox()
257 		ipi->tx_chan = NULL;  in zynqmp_r5_free_mbox()
260 	if (ipi->rx_chan) {  in zynqmp_r5_free_mbox()
261 		mbox_free_channel(ipi->rx_chan);  in zynqmp_r5_free_mbox()
262 		ipi->rx_chan = NULL;  in zynqmp_r5_free_mbox()
265 	kfree(ipi);  in zynqmp_r5_free_mbox()
278 	struct mbox_info *ipi;  in zynqmp_r5_rproc_kick()  local
281 	ipi = r5_core->ipi;  in zynqmp_r5_rproc_kick()
282 	if (!ipi)  in zynqmp_r5_rproc_kick()
285 	mb_msg = (struct zynqmp_ipi_message *)ipi->tx_mc_buf;  in zynqmp_r5_rproc_kick()
288 	ret = mbox_send_message(ipi->tx_chan, mb_msg);  in zynqmp_r5_rproc_kick()
1005 	struct mbox_info *ipi;  in zynqmp_r5_cluster_init()  local
1089 		ipi = zynqmp_r5_setup_mbox(&child_pdev->dev);  in zynqmp_r5_cluster_init()
1090 		if (ipi) {  in zynqmp_r5_cluster_init()
1091 			r5_cores[i]->ipi = ipi;  in zynqmp_r5_cluster_init()
1092 			ipi->r5_core = r5_cores[i];  in zynqmp_r5_cluster_init()
1132 			zynqmp_r5_free_mbox(r5_cores[i]->ipi);  in zynqmp_r5_cluster_init()
1157 		zynqmp_r5_free_mbox(r5_core->ipi);  in zynqmp_r5_cluster_exit()