1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
15  * Hardware interface for generic Intel audio DSP HDA IP
26 	 * tell DSP cmd is done - clear busy  in hda_dsp_ipc_host_done()
27 	 * interrupt and send reply msg to dsp  in hda_dsp_ipc_host_done()
44 	 * set DONE bit - tell DSP we have received the reply msg  in hda_dsp_ipc_dsp_done()
45 	 * from DSP, and processed it, don't send more reply to host  in hda_dsp_ipc_dsp_done()
61 	/* send IPC message to DSP */  in hda_dsp_ipc_send_msg()
62 	sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data,  in hda_dsp_ipc_send_msg()
63 			  msg->msg_size);  in hda_dsp_ipc_send_msg()
86 	struct sof_ipc4_msg *msg_data = msg->msg_data;  in hda_dsp_ipc4_schedule_d0i3_work()
88 	/* Schedule a delayed work for d0i3 entry after sending non-pm ipc msg */  in hda_dsp_ipc4_schedule_d0i3_work()
89 	if (hda_dsp_ipc4_pm_msg(msg_data->primary))  in hda_dsp_ipc4_schedule_d0i3_work()
92 	mod_delayed_work(system_wq, &hdev->d0i3_work,  in hda_dsp_ipc4_schedule_d0i3_work()
98 	struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata;  in hda_dsp_ipc4_send_msg()
99 	struct sof_ipc4_msg *msg_data = msg->msg_data;  in hda_dsp_ipc4_send_msg()
102 		hdev->delayed_ipc_tx_msg = msg;  in hda_dsp_ipc4_send_msg()
106 	hdev->delayed_ipc_tx_msg = NULL;  in hda_dsp_ipc4_send_msg()
109 	if (msg_data->data_size)  in hda_dsp_ipc4_send_msg()
110 		sof_mailbox_write(sdev, sdev->host_box.offset, msg_data->data_ptr,  in hda_dsp_ipc4_send_msg()
111 				  msg_data->data_size);  in hda_dsp_ipc4_send_msg()
113 	snd_sof_dsp_write(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCIE, msg_data->extension);  in hda_dsp_ipc4_send_msg()
115 			  msg_data->primary | HDA_DSP_REG_HIPCI_BUSY);  in hda_dsp_ipc4_send_msg()
124 	struct snd_sof_ipc_msg *msg = sdev->msg;  in hda_dsp_ipc_get_reply()
134 		dev_warn(sdev->dev, "unexpected ipc interrupt raised!\n");  in hda_dsp_ipc_get_reply()
138 	hdr = msg->msg_data;  in hda_dsp_ipc_get_reply()
139 	if (hdr->cmd == (SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_CTX_SAVE) ||  in hda_dsp_ipc_get_reply()
140 	    hdr->cmd == (SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_GATE)) {  in hda_dsp_ipc_get_reply()
149 		memcpy(msg->reply_data, &reply, sizeof(reply));  in hda_dsp_ipc_get_reply()
151 		msg->reply_error = 0;  in hda_dsp_ipc_get_reply()
157 irqreturn_t hda_dsp_ipc4_irq_thread(int irq, void *context)  in hda_dsp_ipc4_irq_thread()  argument
169 		/* DSP received the message */  in hda_dsp_ipc4_irq_thread()
179 		/* Message from DSP (reply or notification) */  in hda_dsp_ipc4_irq_thread()
191 			if (likely(sdev->fw_state == SOF_FW_BOOT_COMPLETE)) {  in hda_dsp_ipc4_irq_thread()
192 				struct sof_ipc4_msg *data = sdev->ipc->msg.reply_data;  in hda_dsp_ipc4_irq_thread()
194 				data->primary = primary;  in hda_dsp_ipc4_irq_thread()
195 				data->extension = extension;  in hda_dsp_ipc4_irq_thread()
197 				spin_lock_irq(&sdev->ipc_lock);  in hda_dsp_ipc4_irq_thread()
201 				snd_sof_ipc_reply(sdev, data->primary);  in hda_dsp_ipc4_irq_thread()
203 				spin_unlock_irq(&sdev->ipc_lock);  in hda_dsp_ipc4_irq_thread()
205 				dev_dbg_ratelimited(sdev->dev,  in hda_dsp_ipc4_irq_thread()
214 			sdev->ipc->msg.rx_data = &notification_data;  in hda_dsp_ipc4_irq_thread()
216 			sdev->ipc->msg.rx_data = NULL;  in hda_dsp_ipc4_irq_thread()
218 			/* Let DSP know that we have finished processing the message */  in hda_dsp_ipc4_irq_thread()
227 		dev_dbg_ratelimited(sdev->dev, "nothing to do in IPC IRQ thread\n");  in hda_dsp_ipc4_irq_thread()
230 		struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata;  in hda_dsp_ipc4_irq_thread()
232 		if (hdev->delayed_ipc_tx_msg)  in hda_dsp_ipc4_irq_thread()
233 			hda_dsp_ipc4_send_msg(sdev, hdev->delayed_ipc_tx_msg);  in hda_dsp_ipc4_irq_thread()
240 irqreturn_t hda_dsp_ipc_irq_thread(int irq, void *context)  in hda_dsp_ipc_irq_thread()  argument
258 	/* is this a reply message from the DSP */  in hda_dsp_ipc_irq_thread()
272 		 * waking up the sender and re-enabling the interrupt. Also  in hda_dsp_ipc_irq_thread()
274 		 * if the DSP is fast enough to receive an IPC message, reply to  in hda_dsp_ipc_irq_thread()
280 		if (likely(sdev->fw_state == SOF_FW_BOOT_COMPLETE)) {  in hda_dsp_ipc_irq_thread()
281 			spin_lock_irq(&sdev->ipc_lock);  in hda_dsp_ipc_irq_thread()
283 			/* handle immediate reply from DSP core */  in hda_dsp_ipc_irq_thread()
290 			spin_unlock_irq(&sdev->ipc_lock);  in hda_dsp_ipc_irq_thread()
292 			dev_dbg_ratelimited(sdev->dev, "IPC reply before FW_READY: %#x\n",  in hda_dsp_ipc_irq_thread()
299 	/* is this a new message from DSP */  in hda_dsp_ipc_irq_thread()
311 		/* handle messages from DSP */  in hda_dsp_ipc_irq_thread()
313 			struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;  in hda_dsp_ipc_irq_thread()
321 			 * to false as the DSP might be able to boot in the next  in hda_dsp_ipc_irq_thread()
324 			if (sdev->fw_state == SOF_FW_BOOT_IN_PROGRESS &&  in hda_dsp_ipc_irq_thread()
325 			    hda->boot_iteration < HDA_FW_BOOT_ATTEMPTS)  in hda_dsp_ipc_irq_thread()
331 			/* normal message - process normally */  in hda_dsp_ipc_irq_thread()
344 		dev_dbg_ratelimited(sdev->dev,  in hda_dsp_ipc_irq_thread()
345 				    "nothing to do in IPC IRQ thread\n");  in hda_dsp_ipc_irq_thread()
351 /* Check if an IPC IRQ occurred */
354 	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;  in hda_dsp_check_ipc_irq()
358 	if (sdev->dspless_mode_selected)  in hda_dsp_check_ipc_irq()
375 		hda->code_loading = 0;  in hda_dsp_check_ipc_irq()
376 		wake_up(&hda->waitq);  in hda_dsp_check_ipc_irq()
398 	if (!sps || !sdev->stream_box.size) {  in hda_ipc_msg_data()
399 		sof_mailbox_read(sdev, sdev->dsp_box.offset, p, sz);  in hda_ipc_msg_data()
401 		struct snd_pcm_substream *substream = sps->substream;  in hda_ipc_msg_data()
402 		struct hdac_stream *hstream = substream->runtime->private_data;  in hda_ipc_msg_data()
411 			return -ESTRPIPE;  in hda_ipc_msg_data()
413 		sof_mailbox_read(sdev, hda_stream->sof_intel_stream.posn_offset, p, sz);  in hda_ipc_msg_data()
423 	struct snd_pcm_substream *substream = sps->substream;  in hda_set_stream_data_offset()
424 	struct hdac_stream *hstream = substream->runtime->private_data;  in hda_set_stream_data_offset()
431 	if (posn_offset > sdev->stream_box.size ||  in hda_set_stream_data_offset()
433 		return -EINVAL;  in hda_set_stream_data_offset()
435 	hda_stream->sof_intel_stream.posn_offset = sdev->stream_box.offset + posn_offset;  in hda_set_stream_data_offset()
437 	dev_dbg(sdev->dev, "pcm: stream dir %d, posn mailbox offset is %zu",  in hda_set_stream_data_offset()
438 		substream->stream, hda_stream->sof_intel_stream.posn_offset);  in hda_set_stream_data_offset()