brintos

brintos / linux-shallow public Read only

0
0
Text · 30.2 KiB · 83c22d4 Raw
1162 lines · c
1// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)2//3// This file is provided under a dual BSD/GPLv2 license.  When using or4// redistributing this file, you may do so under either license.5//6// Copyright(c) 2021 Intel Corporation7//8//9 10#include <sound/sof/stream.h>11#include <sound/sof/control.h>12#include <trace/events/sof.h>13#include "sof-priv.h"14#include "sof-audio.h"15#include "ipc3-priv.h"16#include "ops.h"17 18typedef void (*ipc3_rx_callback)(struct snd_sof_dev *sdev, void *msg_buf);19 20#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_VERBOSE_IPC)21static void ipc3_log_header(struct device *dev, u8 *text, u32 cmd)22{23	u8 *str;24	u8 *str2 = NULL;25	u32 glb;26	u32 type;27	bool is_sof_ipc_stream_position = false;28 29	glb = cmd & SOF_GLB_TYPE_MASK;30	type = cmd & SOF_CMD_TYPE_MASK;31 32	switch (glb) {33	case SOF_IPC_GLB_REPLY:34		str = "GLB_REPLY"; break;35	case SOF_IPC_GLB_COMPOUND:36		str = "GLB_COMPOUND"; break;37	case SOF_IPC_GLB_TPLG_MSG:38		str = "GLB_TPLG_MSG";39		switch (type) {40		case SOF_IPC_TPLG_COMP_NEW:41			str2 = "COMP_NEW"; break;42		case SOF_IPC_TPLG_COMP_FREE:43			str2 = "COMP_FREE"; break;44		case SOF_IPC_TPLG_COMP_CONNECT:45			str2 = "COMP_CONNECT"; break;46		case SOF_IPC_TPLG_PIPE_NEW:47			str2 = "PIPE_NEW"; break;48		case SOF_IPC_TPLG_PIPE_FREE:49			str2 = "PIPE_FREE"; break;50		case SOF_IPC_TPLG_PIPE_CONNECT:51			str2 = "PIPE_CONNECT"; break;52		case SOF_IPC_TPLG_PIPE_COMPLETE:53			str2 = "PIPE_COMPLETE"; break;54		case SOF_IPC_TPLG_BUFFER_NEW:55			str2 = "BUFFER_NEW"; break;56		case SOF_IPC_TPLG_BUFFER_FREE:57			str2 = "BUFFER_FREE"; break;58		default:59			str2 = "unknown type"; break;60		}61		break;62	case SOF_IPC_GLB_PM_MSG:63		str = "GLB_PM_MSG";64		switch (type) {65		case SOF_IPC_PM_CTX_SAVE:66			str2 = "CTX_SAVE"; break;67		case SOF_IPC_PM_CTX_RESTORE:68			str2 = "CTX_RESTORE"; break;69		case SOF_IPC_PM_CTX_SIZE:70			str2 = "CTX_SIZE"; break;71		case SOF_IPC_PM_CLK_SET:72			str2 = "CLK_SET"; break;73		case SOF_IPC_PM_CLK_GET:74			str2 = "CLK_GET"; break;75		case SOF_IPC_PM_CLK_REQ:76			str2 = "CLK_REQ"; break;77		case SOF_IPC_PM_CORE_ENABLE:78			str2 = "CORE_ENABLE"; break;79		case SOF_IPC_PM_GATE:80			str2 = "GATE"; break;81		default:82			str2 = "unknown type"; break;83		}84		break;85	case SOF_IPC_GLB_COMP_MSG:86		str = "GLB_COMP_MSG";87		switch (type) {88		case SOF_IPC_COMP_SET_VALUE:89			str2 = "SET_VALUE"; break;90		case SOF_IPC_COMP_GET_VALUE:91			str2 = "GET_VALUE"; break;92		case SOF_IPC_COMP_SET_DATA:93			str2 = "SET_DATA"; break;94		case SOF_IPC_COMP_GET_DATA:95			str2 = "GET_DATA"; break;96		default:97			str2 = "unknown type"; break;98		}99		break;100	case SOF_IPC_GLB_STREAM_MSG:101		str = "GLB_STREAM_MSG";102		switch (type) {103		case SOF_IPC_STREAM_PCM_PARAMS:104			str2 = "PCM_PARAMS"; break;105		case SOF_IPC_STREAM_PCM_PARAMS_REPLY:106			str2 = "PCM_REPLY"; break;107		case SOF_IPC_STREAM_PCM_FREE:108			str2 = "PCM_FREE"; break;109		case SOF_IPC_STREAM_TRIG_START:110			str2 = "TRIG_START"; break;111		case SOF_IPC_STREAM_TRIG_STOP:112			str2 = "TRIG_STOP"; break;113		case SOF_IPC_STREAM_TRIG_PAUSE:114			str2 = "TRIG_PAUSE"; break;115		case SOF_IPC_STREAM_TRIG_RELEASE:116			str2 = "TRIG_RELEASE"; break;117		case SOF_IPC_STREAM_TRIG_DRAIN:118			str2 = "TRIG_DRAIN"; break;119		case SOF_IPC_STREAM_TRIG_XRUN:120			str2 = "TRIG_XRUN"; break;121		case SOF_IPC_STREAM_POSITION:122			is_sof_ipc_stream_position = true;123			str2 = "POSITION"; break;124		case SOF_IPC_STREAM_VORBIS_PARAMS:125			str2 = "VORBIS_PARAMS"; break;126		case SOF_IPC_STREAM_VORBIS_FREE:127			str2 = "VORBIS_FREE"; break;128		default:129			str2 = "unknown type"; break;130		}131		break;132	case SOF_IPC_FW_READY:133		str = "FW_READY"; break;134	case SOF_IPC_GLB_DAI_MSG:135		str = "GLB_DAI_MSG";136		switch (type) {137		case SOF_IPC_DAI_CONFIG:138			str2 = "CONFIG"; break;139		case SOF_IPC_DAI_LOOPBACK:140			str2 = "LOOPBACK"; break;141		default:142			str2 = "unknown type"; break;143		}144		break;145	case SOF_IPC_GLB_TRACE_MSG:146		str = "GLB_TRACE_MSG";147		switch (type) {148		case SOF_IPC_TRACE_DMA_PARAMS:149			str2 = "DMA_PARAMS"; break;150		case SOF_IPC_TRACE_DMA_POSITION:151			if (!sof_debug_check_flag(SOF_DBG_PRINT_DMA_POSITION_UPDATE_LOGS))152				return;153			str2 = "DMA_POSITION"; break;154		case SOF_IPC_TRACE_DMA_PARAMS_EXT:155			str2 = "DMA_PARAMS_EXT"; break;156		case SOF_IPC_TRACE_FILTER_UPDATE:157			str2 = "FILTER_UPDATE"; break;158		case SOF_IPC_TRACE_DMA_FREE:159			str2 = "DMA_FREE"; break;160		default:161			str2 = "unknown type"; break;162		}163		break;164	case SOF_IPC_GLB_TEST_MSG:165		str = "GLB_TEST_MSG";166		switch (type) {167		case SOF_IPC_TEST_IPC_FLOOD:168			str2 = "IPC_FLOOD"; break;169		default:170			str2 = "unknown type"; break;171		}172		break;173	case SOF_IPC_GLB_DEBUG:174		str = "GLB_DEBUG";175		switch (type) {176		case SOF_IPC_DEBUG_MEM_USAGE:177			str2 = "MEM_USAGE"; break;178		default:179			str2 = "unknown type"; break;180		}181		break;182	case SOF_IPC_GLB_PROBE:183		str = "GLB_PROBE";184		switch (type) {185		case SOF_IPC_PROBE_INIT:186			str2 = "INIT"; break;187		case SOF_IPC_PROBE_DEINIT:188			str2 = "DEINIT"; break;189		case SOF_IPC_PROBE_DMA_ADD:190			str2 = "DMA_ADD"; break;191		case SOF_IPC_PROBE_DMA_INFO:192			str2 = "DMA_INFO"; break;193		case SOF_IPC_PROBE_DMA_REMOVE:194			str2 = "DMA_REMOVE"; break;195		case SOF_IPC_PROBE_POINT_ADD:196			str2 = "POINT_ADD"; break;197		case SOF_IPC_PROBE_POINT_INFO:198			str2 = "POINT_INFO"; break;199		case SOF_IPC_PROBE_POINT_REMOVE:200			str2 = "POINT_REMOVE"; break;201		default:202			str2 = "unknown type"; break;203		}204		break;205	default:206		str = "unknown GLB command"; break;207	}208 209	if (str2) {210		if (is_sof_ipc_stream_position)211			trace_sof_stream_position_ipc_rx(dev);212		else213			dev_dbg(dev, "%s: 0x%x: %s: %s\n", text, cmd, str, str2);214	} else {215		dev_dbg(dev, "%s: 0x%x: %s\n", text, cmd, str);216	}217}218#else219static inline void ipc3_log_header(struct device *dev, u8 *text, u32 cmd)220{221	if ((cmd & SOF_GLB_TYPE_MASK) != SOF_IPC_GLB_TRACE_MSG)222		dev_dbg(dev, "%s: 0x%x\n", text, cmd);223}224#endif225 226static void sof_ipc3_dump_payload(struct snd_sof_dev *sdev,227				  void *ipc_data, size_t size)228{229	printk(KERN_DEBUG "Size of payload following the header: %zu\n", size);230	print_hex_dump_debug("Message payload: ", DUMP_PREFIX_OFFSET,231			     16, 4, ipc_data, size, false);232}233 234static int sof_ipc3_get_reply(struct snd_sof_dev *sdev)235{236	struct snd_sof_ipc_msg *msg = sdev->msg;237	struct sof_ipc_reply *reply;238	int ret = 0;239 240	/* get the generic reply */241	reply = msg->reply_data;242	snd_sof_dsp_mailbox_read(sdev, sdev->host_box.offset, reply, sizeof(*reply));243 244	if (reply->error < 0)245		return reply->error;246 247	if (!reply->hdr.size) {248		/* Reply should always be >= sizeof(struct sof_ipc_reply) */249		if (msg->reply_size)250			dev_err(sdev->dev,251				"empty reply received, expected %zu bytes\n",252				msg->reply_size);253		else254			dev_err(sdev->dev, "empty reply received\n");255 256		return -EINVAL;257	}258 259	if (msg->reply_size > 0) {260		if (reply->hdr.size == msg->reply_size) {261			ret = 0;262		} else if (reply->hdr.size < msg->reply_size) {263			dev_dbg(sdev->dev,264				"reply size (%u) is less than expected (%zu)\n",265				reply->hdr.size, msg->reply_size);266 267			msg->reply_size = reply->hdr.size;268			ret = 0;269		} else {270			dev_err(sdev->dev,271				"reply size (%u) exceeds the buffer size (%zu)\n",272				reply->hdr.size, msg->reply_size);273			ret = -EINVAL;274		}275 276		/*277		 * get the full message if reply->hdr.size <= msg->reply_size278		 * and the reply->hdr.size > sizeof(struct sof_ipc_reply)279		 */280		if (!ret && msg->reply_size > sizeof(*reply))281			snd_sof_dsp_mailbox_read(sdev, sdev->host_box.offset,282						 msg->reply_data, msg->reply_size);283	}284 285	return ret;286}287 288/* wait for IPC message reply */289static int ipc3_wait_tx_done(struct snd_sof_ipc *ipc, void *reply_data)290{291	struct snd_sof_ipc_msg *msg = &ipc->msg;292	struct sof_ipc_cmd_hdr *hdr = msg->msg_data;293	struct snd_sof_dev *sdev = ipc->sdev;294	int ret;295 296	/* wait for DSP IPC completion */297	ret = wait_event_timeout(msg->waitq, msg->ipc_complete,298				 msecs_to_jiffies(sdev->ipc_timeout));299 300	if (ret == 0) {301		dev_err(sdev->dev,302			"ipc tx timed out for %#x (msg/reply size: %d/%zu)\n",303			hdr->cmd, hdr->size, msg->reply_size);304		snd_sof_handle_fw_exception(ipc->sdev, "IPC timeout");305		ret = -ETIMEDOUT;306	} else {307		ret = msg->reply_error;308		if (ret < 0) {309			dev_err(sdev->dev,310				"ipc tx error for %#x (msg/reply size: %d/%zu): %d\n",311				hdr->cmd, hdr->size, msg->reply_size, ret);312		} else {313			if (sof_debug_check_flag(SOF_DBG_PRINT_IPC_SUCCESS_LOGS))314				ipc3_log_header(sdev->dev, "ipc tx succeeded", hdr->cmd);315			if (reply_data && msg->reply_size)316				/* copy the data returned from DSP */317				memcpy(reply_data, msg->reply_data,318				       msg->reply_size);319		}320 321		/* re-enable dumps after successful IPC tx */322		if (sdev->ipc_dump_printed) {323			sdev->dbg_dump_printed = false;324			sdev->ipc_dump_printed = false;325		}326	}327 328	return ret;329}330 331/* send IPC message from host to DSP */332static int ipc3_tx_msg_unlocked(struct snd_sof_ipc *ipc,333				void *msg_data, size_t msg_bytes,334				void *reply_data, size_t reply_bytes)335{336	struct sof_ipc_cmd_hdr *hdr = msg_data;337	struct snd_sof_dev *sdev = ipc->sdev;338	int ret;339 340	ipc3_log_header(sdev->dev, "ipc tx", hdr->cmd);341 342	ret = sof_ipc_send_msg(sdev, msg_data, msg_bytes, reply_bytes);343 344	if (ret) {345		dev_err_ratelimited(sdev->dev,346				    "%s: ipc message send for %#x failed: %d\n",347				    __func__, hdr->cmd, ret);348		return ret;349	}350 351	/* now wait for completion */352	return ipc3_wait_tx_done(ipc, reply_data);353}354 355static int sof_ipc3_tx_msg(struct snd_sof_dev *sdev, void *msg_data, size_t msg_bytes,356			   void *reply_data, size_t reply_bytes, bool no_pm)357{358	struct snd_sof_ipc *ipc = sdev->ipc;359	int ret;360 361	if (!msg_data || msg_bytes < sizeof(struct sof_ipc_cmd_hdr)) {362		dev_err_ratelimited(sdev->dev, "No IPC message to send\n");363		return -EINVAL;364	}365 366	if (!no_pm) {367		const struct sof_dsp_power_state target_state = {368			.state = SOF_DSP_PM_D0,369		};370 371		/* ensure the DSP is in D0 before sending a new IPC */372		ret = snd_sof_dsp_set_power_state(sdev, &target_state);373		if (ret < 0) {374			dev_err(sdev->dev, "%s: resuming DSP failed: %d\n",375				__func__, ret);376			return ret;377		}378	}379 380	/* Serialise IPC TX */381	mutex_lock(&ipc->tx_mutex);382 383	ret = ipc3_tx_msg_unlocked(ipc, msg_data, msg_bytes, reply_data, reply_bytes);384 385	if (sof_debug_check_flag(SOF_DBG_DUMP_IPC_MESSAGE_PAYLOAD)) {386		size_t payload_bytes, header_bytes;387		char *payload = NULL;388 389		/* payload is indicated by non zero msg/reply_bytes */390		if (msg_bytes > sizeof(struct sof_ipc_cmd_hdr)) {391			payload = msg_data;392 393			header_bytes = sizeof(struct sof_ipc_cmd_hdr);394			payload_bytes = msg_bytes - header_bytes;395		} else if (reply_bytes > sizeof(struct sof_ipc_reply)) {396			payload = reply_data;397 398			header_bytes = sizeof(struct sof_ipc_reply);399			payload_bytes = reply_bytes - header_bytes;400		}401 402		if (payload) {403			payload += header_bytes;404			sof_ipc3_dump_payload(sdev, payload, payload_bytes);405		}406	}407 408	mutex_unlock(&ipc->tx_mutex);409 410	return ret;411}412 413static int sof_ipc3_set_get_data(struct snd_sof_dev *sdev, void *data, size_t data_bytes,414				 bool set)415{416	size_t msg_bytes, hdr_bytes, payload_size, send_bytes;417	struct sof_ipc_ctrl_data *cdata = data;418	struct sof_ipc_ctrl_data *cdata_chunk;419	struct snd_sof_ipc *ipc = sdev->ipc;420	size_t offset = 0;421	u8 *src, *dst;422	u32 num_msg;423	int ret = 0;424	int i;425 426	if (!cdata || data_bytes < sizeof(*cdata))427		return -EINVAL;428 429	if ((cdata->rhdr.hdr.cmd & SOF_GLB_TYPE_MASK) != SOF_IPC_GLB_COMP_MSG) {430		dev_err(sdev->dev, "%s: Not supported message type of %#x\n",431			__func__, cdata->rhdr.hdr.cmd);432		return -EINVAL;433	}434 435	/* send normal size ipc in one part */436	if (cdata->rhdr.hdr.size <= ipc->max_payload_size)437		return sof_ipc3_tx_msg(sdev, cdata, cdata->rhdr.hdr.size,438				       cdata, cdata->rhdr.hdr.size, false);439 440	cdata_chunk = kzalloc(ipc->max_payload_size, GFP_KERNEL);441	if (!cdata_chunk)442		return -ENOMEM;443 444	switch (cdata->type) {445	case SOF_CTRL_TYPE_VALUE_CHAN_GET:446	case SOF_CTRL_TYPE_VALUE_CHAN_SET:447		hdr_bytes = sizeof(struct sof_ipc_ctrl_data);448		if (set) {449			src = (u8 *)cdata->chanv;450			dst = (u8 *)cdata_chunk->chanv;451		} else {452			src = (u8 *)cdata_chunk->chanv;453			dst = (u8 *)cdata->chanv;454		}455		break;456	case SOF_CTRL_TYPE_DATA_GET:457	case SOF_CTRL_TYPE_DATA_SET:458		hdr_bytes = sizeof(struct sof_ipc_ctrl_data) + sizeof(struct sof_abi_hdr);459		if (set) {460			src = (u8 *)cdata->data->data;461			dst = (u8 *)cdata_chunk->data->data;462		} else {463			src = (u8 *)cdata_chunk->data->data;464			dst = (u8 *)cdata->data->data;465		}466		break;467	default:468		kfree(cdata_chunk);469		return -EINVAL;470	}471 472	msg_bytes = cdata->rhdr.hdr.size - hdr_bytes;473	payload_size = ipc->max_payload_size - hdr_bytes;474	num_msg = DIV_ROUND_UP(msg_bytes, payload_size);475 476	/* copy the header data */477	memcpy(cdata_chunk, cdata, hdr_bytes);478 479	/* Serialise IPC TX */480	mutex_lock(&sdev->ipc->tx_mutex);481 482	/* copy the payload data in a loop */483	for (i = 0; i < num_msg; i++) {484		send_bytes = min(msg_bytes, payload_size);485		cdata_chunk->num_elems = send_bytes;486		cdata_chunk->rhdr.hdr.size = hdr_bytes + send_bytes;487		cdata_chunk->msg_index = i;488		msg_bytes -= send_bytes;489		cdata_chunk->elems_remaining = msg_bytes;490 491		if (set)492			memcpy(dst, src + offset, send_bytes);493 494		ret = ipc3_tx_msg_unlocked(sdev->ipc,495					   cdata_chunk, cdata_chunk->rhdr.hdr.size,496					   cdata_chunk, cdata_chunk->rhdr.hdr.size);497		if (ret < 0)498			break;499 500		if (!set)501			memcpy(dst + offset, src, send_bytes);502 503		offset += payload_size;504	}505 506	if (sof_debug_check_flag(SOF_DBG_DUMP_IPC_MESSAGE_PAYLOAD)) {507		size_t header_bytes = sizeof(struct sof_ipc_reply);508		char *payload = (char *)cdata;509 510		payload += header_bytes;511		sof_ipc3_dump_payload(sdev, payload, data_bytes - header_bytes);512	}513 514	mutex_unlock(&sdev->ipc->tx_mutex);515 516	kfree(cdata_chunk);517 518	return ret;519}520 521int sof_ipc3_get_ext_windows(struct snd_sof_dev *sdev,522			     const struct sof_ipc_ext_data_hdr *ext_hdr)523{524	const struct sof_ipc_window *w =525		container_of(ext_hdr, struct sof_ipc_window, ext_hdr);526 527	if (w->num_windows == 0 || w->num_windows > SOF_IPC_MAX_ELEMS)528		return -EINVAL;529 530	if (sdev->info_window) {531		if (memcmp(sdev->info_window, w, ext_hdr->hdr.size)) {532			dev_err(sdev->dev, "mismatch between window descriptor from extended manifest and mailbox");533			return -EINVAL;534		}535		return 0;536	}537 538	/* keep a local copy of the data */539	sdev->info_window = devm_kmemdup(sdev->dev, w, ext_hdr->hdr.size, GFP_KERNEL);540	if (!sdev->info_window)541		return -ENOMEM;542 543	return 0;544}545 546int sof_ipc3_get_cc_info(struct snd_sof_dev *sdev,547			 const struct sof_ipc_ext_data_hdr *ext_hdr)548{549	int ret;550 551	const struct sof_ipc_cc_version *cc =552		container_of(ext_hdr, struct sof_ipc_cc_version, ext_hdr);553 554	if (sdev->cc_version) {555		if (memcmp(sdev->cc_version, cc, cc->ext_hdr.hdr.size)) {556			dev_err(sdev->dev,557				"Receive diverged cc_version descriptions");558			return -EINVAL;559		}560		return 0;561	}562 563	dev_dbg(sdev->dev,564		"Firmware info: used compiler %s %d:%d:%d%s used optimization flags %s\n",565		cc->name, cc->major, cc->minor, cc->micro, cc->desc, cc->optim);566 567	/* create read-only cc_version debugfs to store compiler version info */568	/* use local copy of the cc_version to prevent data corruption */569	if (sdev->first_boot) {570		sdev->cc_version = devm_kmemdup(sdev->dev, cc, cc->ext_hdr.hdr.size, GFP_KERNEL);571		if (!sdev->cc_version)572			return -ENOMEM;573 574		ret = snd_sof_debugfs_buf_item(sdev, sdev->cc_version,575					       cc->ext_hdr.hdr.size,576					       "cc_version", 0444);577 578		/* errors are only due to memory allocation, not debugfs */579		if (ret < 0) {580			dev_err(sdev->dev, "snd_sof_debugfs_buf_item failed\n");581			return ret;582		}583	}584 585	return 0;586}587 588/* parse the extended FW boot data structures from FW boot message */589static int ipc3_fw_parse_ext_data(struct snd_sof_dev *sdev, u32 offset)590{591	struct sof_ipc_ext_data_hdr *ext_hdr;592	void *ext_data;593	int ret = 0;594 595	ext_data = kzalloc(PAGE_SIZE, GFP_KERNEL);596	if (!ext_data)597		return -ENOMEM;598 599	/* get first header */600	snd_sof_dsp_block_read(sdev, SOF_FW_BLK_TYPE_SRAM, offset, ext_data,601			       sizeof(*ext_hdr));602	ext_hdr = ext_data;603 604	while (ext_hdr->hdr.cmd == SOF_IPC_FW_READY) {605		/* read in ext structure */606		snd_sof_dsp_block_read(sdev, SOF_FW_BLK_TYPE_SRAM,607				       offset + sizeof(*ext_hdr),608				       (void *)((u8 *)ext_data + sizeof(*ext_hdr)),609				       ext_hdr->hdr.size - sizeof(*ext_hdr));610 611		dev_dbg(sdev->dev, "found ext header type %d size 0x%x\n",612			ext_hdr->type, ext_hdr->hdr.size);613 614		/* process structure data */615		switch (ext_hdr->type) {616		case SOF_IPC_EXT_WINDOW:617			ret = sof_ipc3_get_ext_windows(sdev, ext_hdr);618			break;619		case SOF_IPC_EXT_CC_INFO:620			ret = sof_ipc3_get_cc_info(sdev, ext_hdr);621			break;622		case SOF_IPC_EXT_UNUSED:623		case SOF_IPC_EXT_PROBE_INFO:624		case SOF_IPC_EXT_USER_ABI_INFO:625			/* They are supported but we don't do anything here */626			break;627		default:628			dev_info(sdev->dev, "unknown ext header type %d size 0x%x\n",629				 ext_hdr->type, ext_hdr->hdr.size);630			ret = 0;631			break;632		}633 634		if (ret < 0) {635			dev_err(sdev->dev, "Failed to parse ext data type %d\n",636				ext_hdr->type);637			break;638		}639 640		/* move to next header */641		offset += ext_hdr->hdr.size;642		snd_sof_dsp_block_read(sdev, SOF_FW_BLK_TYPE_SRAM, offset, ext_data,643				       sizeof(*ext_hdr));644		ext_hdr = ext_data;645	}646 647	kfree(ext_data);648	return ret;649}650 651static void ipc3_get_windows(struct snd_sof_dev *sdev)652{653	struct sof_ipc_window_elem *elem;654	u32 outbox_offset = 0;655	u32 stream_offset = 0;656	u32 inbox_offset = 0;657	u32 outbox_size = 0;658	u32 stream_size = 0;659	u32 inbox_size = 0;660	u32 debug_size = 0;661	u32 debug_offset = 0;662	int window_offset;663	int i;664 665	if (!sdev->info_window) {666		dev_err(sdev->dev, "%s: No window info present\n", __func__);667		return;668	}669 670	for (i = 0; i < sdev->info_window->num_windows; i++) {671		elem = &sdev->info_window->window[i];672 673		window_offset = snd_sof_dsp_get_window_offset(sdev, elem->id);674		if (window_offset < 0) {675			dev_warn(sdev->dev, "No offset for window %d\n", elem->id);676			continue;677		}678 679		switch (elem->type) {680		case SOF_IPC_REGION_UPBOX:681			inbox_offset = window_offset + elem->offset;682			inbox_size = elem->size;683			snd_sof_debugfs_add_region_item(sdev, SOF_FW_BLK_TYPE_SRAM,684							inbox_offset,685							elem->size, "inbox",686							SOF_DEBUGFS_ACCESS_D0_ONLY);687			break;688		case SOF_IPC_REGION_DOWNBOX:689			outbox_offset = window_offset + elem->offset;690			outbox_size = elem->size;691			snd_sof_debugfs_add_region_item(sdev, SOF_FW_BLK_TYPE_SRAM,692							outbox_offset,693							elem->size, "outbox",694							SOF_DEBUGFS_ACCESS_D0_ONLY);695			break;696		case SOF_IPC_REGION_TRACE:697			snd_sof_debugfs_add_region_item(sdev, SOF_FW_BLK_TYPE_SRAM,698							window_offset + elem->offset,699							elem->size, "etrace",700							SOF_DEBUGFS_ACCESS_D0_ONLY);701			break;702		case SOF_IPC_REGION_DEBUG:703			debug_offset = window_offset + elem->offset;704			debug_size = elem->size;705			snd_sof_debugfs_add_region_item(sdev, SOF_FW_BLK_TYPE_SRAM,706							window_offset + elem->offset,707							elem->size, "debug",708							SOF_DEBUGFS_ACCESS_D0_ONLY);709			break;710		case SOF_IPC_REGION_STREAM:711			stream_offset = window_offset + elem->offset;712			stream_size = elem->size;713			snd_sof_debugfs_add_region_item(sdev, SOF_FW_BLK_TYPE_SRAM,714							stream_offset,715							elem->size, "stream",716							SOF_DEBUGFS_ACCESS_D0_ONLY);717			break;718		case SOF_IPC_REGION_REGS:719			snd_sof_debugfs_add_region_item(sdev, SOF_FW_BLK_TYPE_SRAM,720							window_offset + elem->offset,721							elem->size, "regs",722							SOF_DEBUGFS_ACCESS_D0_ONLY);723			break;724		case SOF_IPC_REGION_EXCEPTION:725			sdev->dsp_oops_offset = window_offset + elem->offset;726			snd_sof_debugfs_add_region_item(sdev, SOF_FW_BLK_TYPE_SRAM,727							window_offset + elem->offset,728							elem->size, "exception",729							SOF_DEBUGFS_ACCESS_D0_ONLY);730			break;731		default:732			dev_err(sdev->dev, "%s: Illegal window info: %u\n",733				__func__, elem->type);734			return;735		}736	}737 738	if (outbox_size == 0 || inbox_size == 0) {739		dev_err(sdev->dev, "%s: Illegal mailbox window\n", __func__);740		return;741	}742 743	sdev->dsp_box.offset = inbox_offset;744	sdev->dsp_box.size = inbox_size;745 746	sdev->host_box.offset = outbox_offset;747	sdev->host_box.size = outbox_size;748 749	sdev->stream_box.offset = stream_offset;750	sdev->stream_box.size = stream_size;751 752	sdev->debug_box.offset = debug_offset;753	sdev->debug_box.size = debug_size;754 755	dev_dbg(sdev->dev, " mailbox upstream 0x%x - size 0x%x\n",756		inbox_offset, inbox_size);757	dev_dbg(sdev->dev, " mailbox downstream 0x%x - size 0x%x\n",758		outbox_offset, outbox_size);759	dev_dbg(sdev->dev, " stream region 0x%x - size 0x%x\n",760		stream_offset, stream_size);761	dev_dbg(sdev->dev, " debug region 0x%x - size 0x%x\n",762		debug_offset, debug_size);763}764 765static int ipc3_init_reply_data_buffer(struct snd_sof_dev *sdev)766{767	struct snd_sof_ipc_msg *msg = &sdev->ipc->msg;768 769	msg->reply_data = devm_kzalloc(sdev->dev, SOF_IPC_MSG_MAX_SIZE, GFP_KERNEL);770	if (!msg->reply_data)771		return -ENOMEM;772 773	sdev->ipc->max_payload_size = SOF_IPC_MSG_MAX_SIZE;774 775	return 0;776}777 778int sof_ipc3_validate_fw_version(struct snd_sof_dev *sdev)779{780	struct sof_ipc_fw_ready *ready = &sdev->fw_ready;781	struct sof_ipc_fw_version *v = &ready->version;782 783	dev_info(sdev->dev,784		 "Firmware info: version %d:%d:%d-%s\n",  v->major, v->minor,785		 v->micro, v->tag);786	dev_info(sdev->dev,787		 "Firmware: ABI %d:%d:%d Kernel ABI %d:%d:%d\n",788		 SOF_ABI_VERSION_MAJOR(v->abi_version),789		 SOF_ABI_VERSION_MINOR(v->abi_version),790		 SOF_ABI_VERSION_PATCH(v->abi_version),791		 SOF_ABI_MAJOR, SOF_ABI_MINOR, SOF_ABI_PATCH);792 793	if (SOF_ABI_VERSION_INCOMPATIBLE(SOF_ABI_VERSION, v->abi_version)) {794		dev_err(sdev->dev, "incompatible FW ABI version\n");795		return -EINVAL;796	}797 798	if (IS_ENABLED(CONFIG_SND_SOC_SOF_STRICT_ABI_CHECKS) &&799	    SOF_ABI_VERSION_MINOR(v->abi_version) > SOF_ABI_MINOR) {800		dev_err(sdev->dev, "FW ABI is more recent than kernel\n");801		return -EINVAL;802	}803 804	if (ready->flags & SOF_IPC_INFO_BUILD) {805		dev_info(sdev->dev,806			 "Firmware debug build %d on %s-%s - options:\n"807			 " GDB: %s\n"808			 " lock debug: %s\n"809			 " lock vdebug: %s\n",810			 v->build, v->date, v->time,811			 (ready->flags & SOF_IPC_INFO_GDB) ?812				"enabled" : "disabled",813			 (ready->flags & SOF_IPC_INFO_LOCKS) ?814				"enabled" : "disabled",815			 (ready->flags & SOF_IPC_INFO_LOCKSV) ?816				"enabled" : "disabled");817	}818 819	/* copy the fw_version into debugfs at first boot */820	memcpy(&sdev->fw_version, v, sizeof(*v));821 822	return 0;823}824 825static int ipc3_fw_ready(struct snd_sof_dev *sdev, u32 cmd)826{827	struct sof_ipc_fw_ready *fw_ready = &sdev->fw_ready;828	int offset;829	int ret;830 831	/* mailbox must be on 4k boundary */832	offset = snd_sof_dsp_get_mailbox_offset(sdev);833	if (offset < 0) {834		dev_err(sdev->dev, "%s: no mailbox offset\n", __func__);835		return offset;836	}837 838	dev_dbg(sdev->dev, "DSP is ready 0x%8.8x offset 0x%x\n", cmd, offset);839 840	/* no need to re-check version/ABI for subsequent boots */841	if (!sdev->first_boot)842		return 0;843 844	/*845	 * copy data from the DSP FW ready offset846	 * Subsequent error handling is not needed for BLK_TYPE_SRAM847	 */848	ret = snd_sof_dsp_block_read(sdev, SOF_FW_BLK_TYPE_SRAM, offset, fw_ready,849				     sizeof(*fw_ready));850	if (ret) {851		dev_err(sdev->dev,852			"Unable to read fw_ready, read from TYPE_SRAM failed\n");853		return ret;854	}855 856	/* make sure ABI version is compatible */857	ret = sof_ipc3_validate_fw_version(sdev);858	if (ret < 0)859		return ret;860 861	/* now check for extended data */862	ipc3_fw_parse_ext_data(sdev, offset + sizeof(struct sof_ipc_fw_ready));863 864	ipc3_get_windows(sdev);865 866	return ipc3_init_reply_data_buffer(sdev);867}868 869/* IPC stream position. */870static void ipc3_period_elapsed(struct snd_sof_dev *sdev, u32 msg_id)871{872	struct snd_soc_component *scomp = sdev->component;873	struct snd_sof_pcm_stream *stream;874	struct sof_ipc_stream_posn posn;875	struct snd_sof_pcm *spcm;876	int direction, ret;877 878	spcm = snd_sof_find_spcm_comp(scomp, msg_id, &direction);879	if (!spcm) {880		dev_err(sdev->dev, "period elapsed for unknown stream, msg_id %d\n",881			msg_id);882		return;883	}884 885	stream = &spcm->stream[direction];886	ret = snd_sof_ipc_msg_data(sdev, stream, &posn, sizeof(posn));887	if (ret < 0) {888		dev_warn(sdev->dev, "failed to read stream position: %d\n", ret);889		return;890	}891 892	trace_sof_ipc3_period_elapsed_position(sdev, &posn);893 894	memcpy(&stream->posn, &posn, sizeof(posn));895 896	if (spcm->pcm.compress)897		snd_sof_compr_fragment_elapsed(stream->cstream);898	else if (stream->substream->runtime &&899		 !stream->substream->runtime->no_period_wakeup)900		/* only inform ALSA for period_wakeup mode */901		snd_sof_pcm_period_elapsed(stream->substream);902}903 904/* DSP notifies host of an XRUN within FW */905static void ipc3_xrun(struct snd_sof_dev *sdev, u32 msg_id)906{907	struct snd_soc_component *scomp = sdev->component;908	struct snd_sof_pcm_stream *stream;909	struct sof_ipc_stream_posn posn;910	struct snd_sof_pcm *spcm;911	int direction, ret;912 913	spcm = snd_sof_find_spcm_comp(scomp, msg_id, &direction);914	if (!spcm) {915		dev_err(sdev->dev, "XRUN for unknown stream, msg_id %d\n",916			msg_id);917		return;918	}919 920	stream = &spcm->stream[direction];921	ret = snd_sof_ipc_msg_data(sdev, stream, &posn, sizeof(posn));922	if (ret < 0) {923		dev_warn(sdev->dev, "failed to read overrun position: %d\n", ret);924		return;925	}926 927	dev_dbg(sdev->dev,  "posn XRUN: host %llx comp %d size %d\n",928		posn.host_posn, posn.xrun_comp_id, posn.xrun_size);929 930#if defined(CONFIG_SND_SOC_SOF_DEBUG_XRUN_STOP)931	/* stop PCM on XRUN - used for pipeline debug */932	memcpy(&stream->posn, &posn, sizeof(posn));933	snd_pcm_stop_xrun(stream->substream);934#endif935}936 937/* stream notifications from firmware */938static void ipc3_stream_message(struct snd_sof_dev *sdev, void *msg_buf)939{940	struct sof_ipc_cmd_hdr *hdr = msg_buf;941	u32 msg_type = hdr->cmd & SOF_CMD_TYPE_MASK;942	u32 msg_id = SOF_IPC_MESSAGE_ID(hdr->cmd);943 944	switch (msg_type) {945	case SOF_IPC_STREAM_POSITION:946		ipc3_period_elapsed(sdev, msg_id);947		break;948	case SOF_IPC_STREAM_TRIG_XRUN:949		ipc3_xrun(sdev, msg_id);950		break;951	default:952		dev_err(sdev->dev, "unhandled stream message %#x\n",953			msg_id);954		break;955	}956}957 958/* component notifications from firmware */959static void ipc3_comp_notification(struct snd_sof_dev *sdev, void *msg_buf)960{961	const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;962	struct sof_ipc_cmd_hdr *hdr = msg_buf;963	u32 msg_type = hdr->cmd & SOF_CMD_TYPE_MASK;964 965	switch (msg_type) {966	case SOF_IPC_COMP_GET_VALUE:967	case SOF_IPC_COMP_GET_DATA:968		break;969	default:970		dev_err(sdev->dev, "unhandled component message %#x\n", msg_type);971		return;972	}973 974	if (tplg_ops->control->update)975		tplg_ops->control->update(sdev, msg_buf);976}977 978static void ipc3_trace_message(struct snd_sof_dev *sdev, void *msg_buf)979{980	struct sof_ipc_cmd_hdr *hdr = msg_buf;981	u32 msg_type = hdr->cmd & SOF_CMD_TYPE_MASK;982 983	switch (msg_type) {984	case SOF_IPC_TRACE_DMA_POSITION:985		ipc3_dtrace_posn_update(sdev, msg_buf);986		break;987	default:988		dev_err(sdev->dev, "unhandled trace message %#x\n", msg_type);989		break;990	}991}992 993void sof_ipc3_do_rx_work(struct snd_sof_dev *sdev, struct sof_ipc_cmd_hdr *hdr, void *msg_buf)994{995	ipc3_rx_callback rx_callback = NULL;996	u32 cmd;997	int err;998 999	ipc3_log_header(sdev->dev, "ipc rx", hdr->cmd);1000 1001	if (hdr->size < sizeof(*hdr) || hdr->size > SOF_IPC_MSG_MAX_SIZE) {1002		dev_err(sdev->dev, "The received message size is invalid: %u\n",1003			hdr->size);1004		return;1005	}1006 1007	cmd = hdr->cmd & SOF_GLB_TYPE_MASK;1008 1009	/* check message type */1010	switch (cmd) {1011	case SOF_IPC_GLB_REPLY:1012		dev_err(sdev->dev, "ipc reply unknown\n");1013		break;1014	case SOF_IPC_FW_READY:1015		/* check for FW boot completion */1016		if (sdev->fw_state == SOF_FW_BOOT_IN_PROGRESS) {1017			err = ipc3_fw_ready(sdev, cmd);1018			if (err < 0)1019				sof_set_fw_state(sdev, SOF_FW_BOOT_READY_FAILED);1020			else1021				sof_set_fw_state(sdev, SOF_FW_BOOT_READY_OK);1022 1023			/* wake up firmware loader */1024			wake_up(&sdev->boot_wait);1025		}1026		break;1027	case SOF_IPC_GLB_COMPOUND:1028	case SOF_IPC_GLB_TPLG_MSG:1029	case SOF_IPC_GLB_PM_MSG:1030		break;1031	case SOF_IPC_GLB_COMP_MSG:1032		rx_callback = ipc3_comp_notification;1033		break;1034	case SOF_IPC_GLB_STREAM_MSG:1035		rx_callback = ipc3_stream_message;1036		break;1037	case SOF_IPC_GLB_TRACE_MSG:1038		rx_callback = ipc3_trace_message;1039		break;1040	default:1041		dev_err(sdev->dev, "%s: Unknown DSP message: 0x%x\n", __func__, cmd);1042		break;1043	}1044 1045	/* Call local handler for the message */1046	if (rx_callback)1047		rx_callback(sdev, msg_buf);1048 1049	/* Notify registered clients */1050	sof_client_ipc_rx_dispatcher(sdev, msg_buf);1051 1052	ipc3_log_header(sdev->dev, "ipc rx done", hdr->cmd);1053}1054EXPORT_SYMBOL(sof_ipc3_do_rx_work);1055 1056/* DSP firmware has sent host a message  */1057static void sof_ipc3_rx_msg(struct snd_sof_dev *sdev)1058{1059	struct sof_ipc_cmd_hdr hdr;1060	void *msg_buf;1061	int err;1062 1063	/* read back header */1064	err = snd_sof_ipc_msg_data(sdev, NULL, &hdr, sizeof(hdr));1065	if (err < 0) {1066		dev_warn(sdev->dev, "failed to read IPC header: %d\n", err);1067		return;1068	}1069 1070	if (hdr.size < sizeof(hdr) || hdr.size > SOF_IPC_MSG_MAX_SIZE) {1071		dev_err(sdev->dev, "The received message size is invalid\n");1072		return;1073	}1074 1075	/* read the full message */1076	msg_buf = kmalloc(hdr.size, GFP_KERNEL);1077	if (!msg_buf)1078		return;1079 1080	err = snd_sof_ipc_msg_data(sdev, NULL, msg_buf, hdr.size);1081	if (err < 0) {1082		dev_err(sdev->dev, "%s: Failed to read message: %d\n", __func__, err);1083		kfree(msg_buf);1084		return;1085	}1086 1087	sof_ipc3_do_rx_work(sdev, &hdr, msg_buf);1088 1089	kfree(msg_buf);1090}1091 1092static int sof_ipc3_set_core_state(struct snd_sof_dev *sdev, int core_idx, bool on)1093{1094	struct sof_ipc_pm_core_config core_cfg = {1095		.hdr.size = sizeof(core_cfg),1096		.hdr.cmd = SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_CORE_ENABLE,1097	};1098 1099	if (on)1100		core_cfg.enable_mask = sdev->enabled_cores_mask | BIT(core_idx);1101	else1102		core_cfg.enable_mask = sdev->enabled_cores_mask & ~BIT(core_idx);1103 1104	return sof_ipc3_tx_msg(sdev, &core_cfg, sizeof(core_cfg), NULL, 0, false);1105}1106 1107static int sof_ipc3_ctx_ipc(struct snd_sof_dev *sdev, int cmd)1108{1109	struct sof_ipc_pm_ctx pm_ctx = {1110		.hdr.size = sizeof(pm_ctx),1111		.hdr.cmd = SOF_IPC_GLB_PM_MSG | cmd,1112	};1113 1114	/* send ctx save ipc to dsp */1115	return sof_ipc3_tx_msg(sdev, &pm_ctx, sizeof(pm_ctx), NULL, 0, false);1116}1117 1118static int sof_ipc3_ctx_save(struct snd_sof_dev *sdev)1119{1120	return sof_ipc3_ctx_ipc(sdev, SOF_IPC_PM_CTX_SAVE);1121}1122 1123static int sof_ipc3_ctx_restore(struct snd_sof_dev *sdev)1124{1125	return sof_ipc3_ctx_ipc(sdev, SOF_IPC_PM_CTX_RESTORE);1126}1127 1128static int sof_ipc3_set_pm_gate(struct snd_sof_dev *sdev, u32 flags)1129{1130	struct sof_ipc_pm_gate pm_gate;1131 1132	memset(&pm_gate, 0, sizeof(pm_gate));1133 1134	/* configure pm_gate ipc message */1135	pm_gate.hdr.size = sizeof(pm_gate);1136	pm_gate.hdr.cmd = SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_GATE;1137	pm_gate.flags = flags;1138 1139	/* send pm_gate ipc to dsp */1140	return sof_ipc_tx_message_no_pm_no_reply(sdev->ipc, &pm_gate, sizeof(pm_gate));1141}1142 1143static const struct sof_ipc_pm_ops ipc3_pm_ops = {1144	.ctx_save = sof_ipc3_ctx_save,1145	.ctx_restore = sof_ipc3_ctx_restore,1146	.set_core_state = sof_ipc3_set_core_state,1147	.set_pm_gate = sof_ipc3_set_pm_gate,1148};1149 1150const struct sof_ipc_ops ipc3_ops = {1151	.tplg = &ipc3_tplg_ops,1152	.pm = &ipc3_pm_ops,1153	.pcm = &ipc3_pcm_ops,1154	.fw_loader = &ipc3_loader_ops,1155	.fw_tracing = &ipc3_dtrace_ops,1156 1157	.tx_msg = sof_ipc3_tx_msg,1158	.rx_msg = sof_ipc3_rx_msg,1159	.set_get_data = sof_ipc3_set_get_data,1160	.get_reply = sof_ipc3_get_reply,1161};1162