Merge tag 'trace-v7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-tracegrafted

Pull tracing fixes from Steven Rostedt:

 - Don't destroy user event fields when removal fails

   User event fields are destroyed before the event is removed from
   visibility. But that can fail leaving the still visible event with no
   fields. Move the destroying of the fields to after the event is
   successfully removed from visibility.

 - Initialize function graph state is fork before calling
   copy_exec_state()

   For non-CLONE_VM forks, copy_exec_state() allocates a new
   task_exec_state. If that allocation fails, ftrace_graph_exit_task()
   will free the tasks ret_stack pointer. Since that pointer is still
   using the parent's ret_stack, it mistakenly frees the parent's
   pointer too.

   Call ftrace_graph_init() on the task first which will NULL out the
   new tasks's ret_stack and if the copy fails, it will not free
   anything.

 - Remove FGRAPH_MAX_INDEX

   The macro FGRAPH_MAX_INDEX was added but never used. Remove it.

 - Save ent_size in function graph printing of nested functions

   The function graph tracer needs to look at the next event to see if
   the next event is the return of the current function entry. If it is,
   it prints a single line:

	ktime_get();

   Otherwise it prints it like a nested function:

	tick_nohz_irq_exit() {
	    ktime_get();
	    kcpustat_irq_exit();
	}

   In order to look at the next event, it must save the current event so
   that it has the information to print from it. It saves the event in
   the iterator descriptor called "ent". What it doesn't save is the
   ent_size of the event which is now used to know if the function graph
   arguments are to be printed. The peek doesn't save the size so the
   size used happens to be that of the size of the last event that was
   seen.

   Save the entry event size in the iterator descriptor so that the
   correct size is used.

 - Fix several errors with freeing data in the histogram code

   The histogram code had a lot of leaked or or incorrect accounting
   when failures happen. Correct them.

 - Fix histogram regression of .percent and .graph modifiers

   Up until 6.3 histogram values could have "percent" or "graph"
   modifiers that changed how they were printed. But a change that added
   restricting histograms values from being strings, stack traces and
   other modifiers inadvertently prevented them from using the percent
   and graph modifiers, which were legal use cases for values.

   Put back the percent and graph modifiers.

 - Fix various typos in the comments

 - Set the trace_clock before initializing a histogram with clock
   argument

   The histogram API allows the user to specific which trace clock to
   use via a "clock=" string. The histogram is set up first before the
   clock is checked. If the passed in clock is not valid, it exits
   without fully fixing up the histogram leaving it on the list and a
   use-after-free can trigger.

   Update the clock argument first and if it fails then exit gracefully
   before the histogram trigger is placed on any lists.

 - Restore :mod: trailer after parsing in ftrace_set_clr_event

   The function ftrace_set_clr_event() modifies the parse string and
   needs to put it back to what was passed in. It searches for ":mod:"
   via a strsep() but fails to put back the first ':' in the string.

   Add back the ':' in the passed in string.

 - Take trace_array reference when opening a tracer options file

   The options files are dynamically created and some tracers add their
   own options. When a tracer adds their own list of options, the
   trace_array holding them has an array to hold the list of options for
   each tracer. This array increases in size via a krealloc(), and the
   new entry gets a newly allocated array to hold the options of the new
   tracer being added.

   The element in each entry of the tracer's option array holds a
   pointer back to the trace_array, a pointer to the tracer it is
   associated to, a pointer to the flags of the option.

   The issue is that these arrays are freed when the trace_array is
   freed when its instance it represents is removed from the instances
   directory. There's a race that an open of one of these options files
   can happen when the instance is being removed.

   Add a new helper function to be called by the open function of the
   options file to iterate all existing trace_arrays under a lock and
   find the one that has the given option element in one of it's tracer
   arrays. If found, then update the associated trace_array's reference
   counter to keep it from being freed. If not found, have the open call
   return -ENODEV.

 - Disable interrupts when acquiring the lock in rb_wake_up_waiters()

   The function rb_wake_up_waiters() assumes it will be called in
   interrupt context and does not disable irqs when taking
   cpu_buffer->reader_lock, which can be called in hard interrupt
   context. The issue is in PREEMPT_RT, this function is called in
   thread context leaving this lock open to a deadlock.

   Take the lock with interrupts disabled.

 - Use rcu_assign_pointer() for tmp_ops filter hash

   The tmp_ops used in update_ftrace_direct_mod() assigns its
   filter_hash field directly, but that field is annotated as __rcu and
   sparse complains. Assign it with rcu_assign_pointer()

 - Fix use-after-free in enable_trigger_private_data_free()

   The trace_event_call is accessed through the event_trigger_data's
   trace_event_file pointer to put the trace_event_call on freeing. The
   issue is that the trace_event_file data may have been freed already
   causing a use-after-free. Add a field to the event_trigger_data that
   points directly to the trace_event_call so that it can decrement its
   reference directly without needing to go through the
   trace_event_file.

 - Fix accounting of buffer data remote headers

   trace_buffer_desc_size() and trace_remote_alloc_buffer() undercount
   the number of pages is needed for the asked for size as it doesn't
   take into account the meta data on each page. Add a helper function
   to do the calculation properly and use that in these functions.

 - Catch nr_page_va overflow in ring_buffer_desc sizing

   The number of pages per remote ring buffer is capped by
   ring_buffer_desc::nr_page_va (32 bits). A buffer_size large enough to
   overflow that field would silently allocate a descriptor smaller than
   what was asked for.

 - Do not resize the subbuf order if any per_cpu buffer is disabled

   The mmapping of ring buffers disables resizing the subbuffers, but it
   is done per-cpu whereas the subbuf size change is done for all the
   per_cpu buffers under the buffer->mutex. It could change the size of
   some while the mapping is happening on others. Have the resize of the
   subbuf order check all the per_cpu buffers under the lock to see if
   any of them is disabled before starting and causing an inconsistency
   between buffers that are being mapped.

* tag 'trace-v7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (25 commits)
  ring-buffer: Check resize_disabled before publishing the new subbuf order
  tracing/remotes: Catch nr_page_va overflow in ring_buffer_desc sizing
  tracing/remotes: Account for ring buffer page header in size calculation
  tracing: Don't dereference trace_event_file in deferred trigger free
  ftrace: Use rcu_assign_pointer() for tmp_ops filter hash
  ring-buffer: Acquire the lock with irqsave in rb_wake_up_waiters()
  tracing: Take trace_array reference when opening a tracer options file
  tracing: Fix ring_buffer_read_page_size() kernel-doc
  tracing: Restore :mod: trailer after parsing in ftrace_set_clr_event()
  tracing: Fix memory corruption from a "STACKTRACE" histogram key
  tracing: Fix memory corruption from the histogram stacktrace modifier
  tracing: Undo the registration when enabling the histogram trigger fails
  tracing: Take the reference before publishing the named histogram trigger
  tracing: Set the trace clock before registering the histogram trigger
  tracing: Fix typo "preceeded" in comment
  tracing: Fix typo "availabe" in comment
  tracing: Let histogram values keep the percent and graph modifiers
  tracing: Keep the entry count when the histogram stats allocation fails
  tracing: Free histogram the field rejected for a bad modifier
  tracing: Free histogram the var ref when its initialization fails
  ...

1 files changed, 1153 insertions, 0 deletions

diff --git a/sound/soc/sof/ipc3.c b/sound/soc/sof/ipc3.c
new file mode 100644
index 000000000..85bb22bbe
--- /dev/null
+++ b/sound/soc/sof/ipc3.c
@@ -0,0 +1,1153 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// This file is provided under a dual BSD/GPLv2 license.  When using or
+// redistributing this file, you may do so under either license.
+//
+// Copyright(c) 2021 Intel Corporation
+//
+//
+
+#include <sound/sof/stream.h>
+#include <sound/sof/control.h>
+#include <trace/events/sof.h>
+#include "sof-priv.h"
+#include "sof-audio.h"
+#include "ipc3-priv.h"
+#include "ops.h"
+
+typedef void (*ipc3_rx_callback)(struct snd_sof_dev *sdev, void *msg_buf);
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_VERBOSE_IPC)
+static void ipc3_log_header(struct device *dev, u8 *text, u32 cmd)
+{
+	u8 *str;
+	u8 *str2 = NULL;
+	u32 glb;
+	u32 type;
+	bool is_sof_ipc_stream_position = false;
+
+	glb = cmd & SOF_GLB_TYPE_MASK;
+	type = cmd & SOF_CMD_TYPE_MASK;
+
+	switch (glb) {
+	case SOF_IPC_GLB_REPLY:
+		str = "GLB_REPLY"; break;
+	case SOF_IPC_GLB_COMPOUND:
+		str = "GLB_COMPOUND"; break;
+	case SOF_IPC_GLB_TPLG_MSG:
+		str = "GLB_TPLG_MSG";
+		switch (type) {
+		case SOF_IPC_TPLG_COMP_NEW:
+			str2 = "COMP_NEW"; break;
+		case SOF_IPC_TPLG_COMP_FREE:
+			str2 = "COMP_FREE"; break;
+		case SOF_IPC_TPLG_COMP_CONNECT:
+			str2 = "COMP_CONNECT"; break;
+		case SOF_IPC_TPLG_PIPE_NEW:
+			str2 = "PIPE_NEW"; break;
+		case SOF_IPC_TPLG_PIPE_FREE:
+			str2 = "PIPE_FREE"; break;
+		case SOF_IPC_TPLG_PIPE_CONNECT:
+			str2 = "PIPE_CONNECT"; break;
+		case SOF_IPC_TPLG_PIPE_COMPLETE:
+			str2 = "PIPE_COMPLETE"; break;
+		case SOF_IPC_TPLG_BUFFER_NEW:
+			str2 = "BUFFER_NEW"; break;
+		case SOF_IPC_TPLG_BUFFER_FREE:
+			str2 = "BUFFER_FREE"; break;
+		default:
+			str2 = "unknown type"; break;
+		}
+		break;
+	case SOF_IPC_GLB_PM_MSG:
+		str = "GLB_PM_MSG";
+		switch (type) {
+		case SOF_IPC_PM_CTX_SAVE:
+			str2 = "CTX_SAVE"; break;
+		case SOF_IPC_PM_CTX_RESTORE:
+			str2 = "CTX_RESTORE"; break;
+		case SOF_IPC_PM_CTX_SIZE:
+			str2 = "CTX_SIZE"; break;
+		case SOF_IPC_PM_CLK_SET:
+			str2 = "CLK_SET"; break;
+		case SOF_IPC_PM_CLK_GET:
+			str2 = "CLK_GET"; break;
+		case SOF_IPC_PM_CLK_REQ:
+			str2 = "CLK_REQ"; break;
+		case SOF_IPC_PM_CORE_ENABLE:
+			str2 = "CORE_ENABLE"; break;
+		case SOF_IPC_PM_GATE:
+			str2 = "GATE"; break;
+		default:
+			str2 = "unknown type"; break;
+		}
+		break;
+	case SOF_IPC_GLB_COMP_MSG:
+		str = "GLB_COMP_MSG";
+		switch (type) {
+		case SOF_IPC_COMP_SET_VALUE:
+			str2 = "SET_VALUE"; break;
+		case SOF_IPC_COMP_GET_VALUE:
+			str2 = "GET_VALUE"; break;
+		case SOF_IPC_COMP_SET_DATA:
+			str2 = "SET_DATA"; break;
+		case SOF_IPC_COMP_GET_DATA:
+			str2 = "GET_DATA"; break;
+		default:
+			str2 = "unknown type"; break;
+		}
+		break;
+	case SOF_IPC_GLB_STREAM_MSG:
+		str = "GLB_STREAM_MSG";
+		switch (type) {
+		case SOF_IPC_STREAM_PCM_PARAMS:
+			str2 = "PCM_PARAMS"; break;
+		case SOF_IPC_STREAM_PCM_PARAMS_REPLY:
+			str2 = "PCM_REPLY"; break;
+		case SOF_IPC_STREAM_PCM_FREE:
+			str2 = "PCM_FREE"; break;
+		case SOF_IPC_STREAM_TRIG_START:
+			str2 = "TRIG_START"; break;
+		case SOF_IPC_STREAM_TRIG_STOP:
+			str2 = "TRIG_STOP"; break;
+		case SOF_IPC_STREAM_TRIG_PAUSE:
+			str2 = "TRIG_PAUSE"; break;
+		case SOF_IPC_STREAM_TRIG_RELEASE:
+			str2 = "TRIG_RELEASE"; break;
+		case SOF_IPC_STREAM_TRIG_DRAIN:
+			str2 = "TRIG_DRAIN"; break;
+		case SOF_IPC_STREAM_TRIG_XRUN:
+			str2 = "TRIG_XRUN"; break;
+		case SOF_IPC_STREAM_POSITION:
+			is_sof_ipc_stream_position = true;
+			str2 = "POSITION"; break;
+		case SOF_IPC_STREAM_VORBIS_PARAMS:
+			str2 = "VORBIS_PARAMS"; break;
+		case SOF_IPC_STREAM_VORBIS_FREE:
+			str2 = "VORBIS_FREE"; break;
+		default:
+			str2 = "unknown type"; break;
+		}
+		break;
+	case SOF_IPC_FW_READY:
+		str = "FW_READY"; break;
+	case SOF_IPC_GLB_DAI_MSG:
+		str = "GLB_DAI_MSG";
+		switch (type) {
+		case SOF_IPC_DAI_CONFIG:
+			str2 = "CONFIG"; break;
+		case SOF_IPC_DAI_LOOPBACK:
+			str2 = "LOOPBACK"; break;
+		default:
+			str2 = "unknown type"; break;
+		}
+		break;
+	case SOF_IPC_GLB_TRACE_MSG:
+		str = "GLB_TRACE_MSG";
+		switch (type) {
+		case SOF_IPC_TRACE_DMA_PARAMS:
+			str2 = "DMA_PARAMS"; break;
+		case SOF_IPC_TRACE_DMA_POSITION:
+			if (!sof_debug_check_flag(SOF_DBG_PRINT_DMA_POSITION_UPDATE_LOGS))
+				return;
+			str2 = "DMA_POSITION"; break;
+		case SOF_IPC_TRACE_DMA_PARAMS_EXT:
+			str2 = "DMA_PARAMS_EXT"; break;
+		case SOF_IPC_TRACE_FILTER_UPDATE:
+			str2 = "FILTER_UPDATE"; break;
+		case SOF_IPC_TRACE_DMA_FREE:
+			str2 = "DMA_FREE"; break;
+		default:
+			str2 = "unknown type"; break;
+		}
+		break;
+	case SOF_IPC_GLB_TEST_MSG:
+		str = "GLB_TEST_MSG";
+		switch (type) {
+		case SOF_IPC_TEST_IPC_FLOOD:
+			str2 = "IPC_FLOOD"; break;
+		default:
+			str2 = "unknown type"; break;
+		}
+		break;
+	case SOF_IPC_GLB_DEBUG:
+		str = "GLB_DEBUG";
+		switch (type) {
+		case SOF_IPC_DEBUG_MEM_USAGE:
+			str2 = "MEM_USAGE"; break;
+		default:
+			str2 = "unknown type"; break;
+		}
+		break;
+	case SOF_IPC_GLB_PROBE:
+		str = "GLB_PROBE";
+		switch (type) {
+		case SOF_IPC_PROBE_INIT:
+			str2 = "INIT"; break;
+		case SOF_IPC_PROBE_DEINIT:
+			str2 = "DEINIT"; break;
+		case SOF_IPC_PROBE_DMA_ADD:
+			str2 = "DMA_ADD"; break;
+		case SOF_IPC_PROBE_DMA_INFO:
+			str2 = "DMA_INFO"; break;
+		case SOF_IPC_PROBE_DMA_REMOVE:
+			str2 = "DMA_REMOVE"; break;
+		case SOF_IPC_PROBE_POINT_ADD:
+			str2 = "POINT_ADD"; break;
+		case SOF_IPC_PROBE_POINT_INFO:
+			str2 = "POINT_INFO"; break;
+		case SOF_IPC_PROBE_POINT_REMOVE:
+			str2 = "POINT_REMOVE"; break;
+		default:
+			str2 = "unknown type"; break;
+		}
+		break;
+	default:
+		str = "unknown GLB command"; break;
+	}
+
+	if (str2) {
+		if (is_sof_ipc_stream_position)
+			trace_sof_stream_position_ipc_rx(dev);
+		else
+			dev_dbg(dev, "%s: 0x%x: %s: %s\n", text, cmd, str, str2);
+	} else {
+		dev_dbg(dev, "%s: 0x%x: %s\n", text, cmd, str);
+	}
+}
+#else
+static inline void ipc3_log_header(struct device *dev, u8 *text, u32 cmd)
+{
+	if ((cmd & SOF_GLB_TYPE_MASK) != SOF_IPC_GLB_TRACE_MSG)
+		dev_dbg(dev, "%s: 0x%x\n", text, cmd);
+}
+#endif
+
+static void sof_ipc3_dump_payload(struct snd_sof_dev *sdev,
+				  void *ipc_data, size_t size)
+{
+	dev_dbg(sdev->dev, "Size of payload following the header: %zu\n", size);
+	print_hex_dump_debug("Message payload: ", DUMP_PREFIX_OFFSET,
+			     16, 4, ipc_data, size, false);
+}
+
+static int sof_ipc3_get_reply(struct snd_sof_dev *sdev)
+{
+	struct snd_sof_ipc_msg *msg = sdev->msg;
+	struct sof_ipc_reply *reply;
+	int ret = 0;
+
+	/* get the generic reply */
+	reply = msg->reply_data;
+	snd_sof_dsp_mailbox_read(sdev, sdev->host_box.offset, reply, sizeof(*reply));
+
+	if (reply->error < 0)
+		return reply->error;
+
+	if (!reply->hdr.size) {
+		/* Reply should always be >= sizeof(struct sof_ipc_reply) */
+		if (msg->reply_size)
+			dev_err(sdev->dev,
+				"empty reply received, expected %zu bytes\n",
+				msg->reply_size);
+		else
+			dev_err(sdev->dev, "empty reply received\n");
+
+		return -EINVAL;
+	}
+
+	if (msg->reply_size > 0) {
+		if (reply->hdr.size == msg->reply_size) {
+			ret = 0;
+		} else if (reply->hdr.size < msg->reply_size) {
+			dev_dbg(sdev->dev,
+				"reply size (%u) is less than expected (%zu)\n",
+				reply->hdr.size, msg->reply_size);
+
+			msg->reply_size = reply->hdr.size;
+			ret = 0;
+		} else {
+			dev_err(sdev->dev,
+				"reply size (%u) exceeds the buffer size (%zu)\n",
+				reply->hdr.size, msg->reply_size);
+			ret = -EINVAL;
+		}
+
+		/*
+		 * get the full message if reply->hdr.size <= msg->reply_size
+		 * and the reply->hdr.size > sizeof(struct sof_ipc_reply)
+		 */
+		if (!ret && msg->reply_size > sizeof(*reply))
+			snd_sof_dsp_mailbox_read(sdev, sdev->host_box.offset,
+						 msg->reply_data, msg->reply_size);
+	}
+
+	return ret;
+}
+
+/* wait for IPC message reply */
+static int ipc3_wait_tx_done(struct snd_sof_ipc *ipc, void *reply_data)
+{
+	struct snd_sof_ipc_msg *msg = &ipc->msg;
+	struct sof_ipc_cmd_hdr *hdr = msg->msg_data;
+	struct snd_sof_dev *sdev = ipc->sdev;
+	int ret;
+
+	/* wait for DSP IPC completion */
+	ret = wait_event_timeout(msg->waitq, msg->ipc_complete,
+				 msecs_to_jiffies(sdev->ipc_timeout));
+
+	if (ret == 0) {
+		dev_err(sdev->dev,
+			"ipc tx timed out for %#x (msg/reply size: %d/%zu)\n",
+			hdr->cmd, hdr->size, msg->reply_size);
+		snd_sof_handle_fw_exception(ipc->sdev, "IPC timeout");
+		ret = -ETIMEDOUT;
+	} else {
+		ret = msg->reply_error;
+		if (ret < 0) {
+			dev_err(sdev->dev,
+				"ipc tx error for %#x (msg/reply size: %d/%zu): %d\n",
+				hdr->cmd, hdr->size, msg->reply_size, ret);
+		} else {
+			if (sof_debug_check_flag(SOF_DBG_PRINT_IPC_SUCCESS_LOGS))
+				ipc3_log_header(sdev->dev, "ipc tx succeeded", hdr->cmd);
+			if (reply_data && msg->reply_size)
+				/* copy the data returned from DSP */
+				memcpy(reply_data, msg->reply_data,
+				       msg->reply_size);
+		}
+
+		/* re-enable dumps after successful IPC tx */
+		if (sdev->ipc_dump_printed) {
+			sdev->dbg_dump_printed = false;
+			sdev->ipc_dump_printed = false;
+		}
+	}
+
+	return ret;
+}
+
+/* send IPC message from host to DSP */
+static int ipc3_tx_msg_unlocked(struct snd_sof_ipc *ipc,
+				void *msg_data, size_t msg_bytes,
+				void *reply_data, size_t reply_bytes)
+{
+	struct sof_ipc_cmd_hdr *hdr = msg_data;
+	struct snd_sof_dev *sdev = ipc->sdev;
+	int ret;
+
+	ipc3_log_header(sdev->dev, "ipc tx", hdr->cmd);
+
+	ret = sof_ipc_send_msg(sdev, msg_data, msg_bytes, reply_bytes);
+
+	if (ret) {
+		dev_err_ratelimited(sdev->dev,
+				    "%s: ipc message send for %#x failed: %d\n",
+				    __func__, hdr->cmd, ret);
+		return ret;
+	}
+
+	/* now wait for completion */
+	return ipc3_wait_tx_done(ipc, reply_data);
+}
+
+static int sof_ipc3_tx_msg(struct snd_sof_dev *sdev, void *msg_data, size_t msg_bytes,
+			   void *reply_data, size_t reply_bytes, bool no_pm)
+{
+	struct snd_sof_ipc *ipc = sdev->ipc;
+	int ret;
+
+	if (!msg_data || msg_bytes < sizeof(struct sof_ipc_cmd_hdr)) {
+		dev_err_ratelimited(sdev->dev, "No IPC message to send\n");
+		return -EINVAL;
+	}
+
+	if (!no_pm) {
+		const struct sof_dsp_power_state target_state = {
+			.state = SOF_DSP_PM_D0,
+		};
+
+		/* ensure the DSP is in D0 before sending a new IPC */
+		ret = snd_sof_dsp_set_power_state(sdev, &target_state);
+		if (ret < 0) {
+			dev_err(sdev->dev, "%s: resuming DSP failed: %d\n",
+				__func__, ret);
+			return ret;
+		}
+	}
+
+	/* Serialise IPC TX */
+	guard(mutex)(&ipc->tx_mutex);
+
+	ret = ipc3_tx_msg_unlocked(ipc, msg_data, msg_bytes, reply_data, reply_bytes);
+
+	if (sof_debug_check_flag(SOF_DBG_DUMP_IPC_MESSAGE_PAYLOAD)) {
+		size_t payload_bytes, header_bytes;
+		char *payload = NULL;
+
+		/* payload is indicated by non zero msg/reply_bytes */
+		if (msg_bytes > sizeof(struct sof_ipc_cmd_hdr)) {
+			payload = msg_data;
+
+			header_bytes = sizeof(struct sof_ipc_cmd_hdr);
+			payload_bytes = msg_bytes - header_bytes;
+		} else if (reply_bytes > sizeof(struct sof_ipc_reply)) {
+			payload = reply_data;
+
+			header_bytes = sizeof(struct sof_ipc_reply);
+			payload_bytes = reply_bytes - header_bytes;
+		}
+
+		if (payload) {
+			payload += header_bytes;
+			sof_ipc3_dump_payload(sdev, payload, payload_bytes);
+		}
+	}
+
+	return ret;
+}
+
+static int sof_ipc3_set_get_data(struct snd_sof_dev *sdev, void *data, size_t data_bytes,
+				 bool set)
+{
+	size_t msg_bytes, hdr_bytes, payload_size, send_bytes;
+	struct sof_ipc_ctrl_data *cdata = data;
+	struct sof_ipc_ctrl_data *cdata_chunk;
+	struct snd_sof_ipc *ipc = sdev->ipc;
+	size_t offset = 0;
+	u8 *src, *dst;
+	u32 num_msg;
+	int ret = 0;
+	int i;
+
+	if (!cdata || data_bytes < sizeof(*cdata))
+		return -EINVAL;
+
+	if ((cdata->rhdr.hdr.cmd & SOF_GLB_TYPE_MASK) != SOF_IPC_GLB_COMP_MSG) {
+		dev_err(sdev->dev, "%s: Not supported message type of %#x\n",
+			__func__, cdata->rhdr.hdr.cmd);
+		return -EINVAL;
+	}
+
+	/* send normal size ipc in one part */
+	if (cdata->rhdr.hdr.size <= ipc->max_payload_size)
+		return sof_ipc3_tx_msg(sdev, cdata, cdata->rhdr.hdr.size,
+				       cdata, cdata->rhdr.hdr.size, false);
+
+	cdata_chunk = kzalloc(ipc->max_payload_size, GFP_KERNEL);
+	if (!cdata_chunk)
+		return -ENOMEM;
+
+	switch (cdata->type) {
+	case SOF_CTRL_TYPE_VALUE_CHAN_GET:
+	case SOF_CTRL_TYPE_VALUE_CHAN_SET:
+		hdr_bytes = sizeof(struct sof_ipc_ctrl_data);
+		if (set) {
+			src = (u8 *)cdata->chanv;
+			dst = (u8 *)cdata_chunk->chanv;
+		} else {
+			src = (u8 *)cdata_chunk->chanv;
+			dst = (u8 *)cdata->chanv;
+		}
+		break;
+	case SOF_CTRL_TYPE_DATA_GET:
+	case SOF_CTRL_TYPE_DATA_SET:
+		hdr_bytes = sizeof(struct sof_ipc_ctrl_data) + sizeof(struct sof_abi_hdr);
+		if (set) {
+			src = (u8 *)cdata->data->data;
+			dst = (u8 *)cdata_chunk->data->data;
+		} else {
+			src = (u8 *)cdata_chunk->data->data;
+			dst = (u8 *)cdata->data->data;
+		}
+		break;
+	default:
+		kfree(cdata_chunk);
+		return -EINVAL;
+	}
+
+	msg_bytes = cdata->rhdr.hdr.size - hdr_bytes;
+	payload_size = ipc->max_payload_size - hdr_bytes;
+	num_msg = DIV_ROUND_UP(msg_bytes, payload_size);
+
+	/* copy the header data */
+	memcpy(cdata_chunk, cdata, hdr_bytes);
+
+	/* Serialise IPC TX */
+	guard(mutex)(&ipc->tx_mutex);
+
+	/* copy the payload data in a loop */
+	for (i = 0; i < num_msg; i++) {
+		send_bytes = min(msg_bytes, payload_size);
+		cdata_chunk->num_elems = send_bytes;
+		cdata_chunk->rhdr.hdr.size = hdr_bytes + send_bytes;
+		cdata_chunk->msg_index = i;
+		msg_bytes -= send_bytes;
+		cdata_chunk->elems_remaining = msg_bytes;
+
+		if (set)
+			memcpy(dst, src + offset, send_bytes);
+
+		ret = ipc3_tx_msg_unlocked(sdev->ipc,
+					   cdata_chunk, cdata_chunk->rhdr.hdr.size,
+					   cdata_chunk, cdata_chunk->rhdr.hdr.size);
+		if (ret < 0)
+			break;
+
+		if (!set)
+			memcpy(dst + offset, src, send_bytes);
+
+		offset += payload_size;
+	}
+
+	if (sof_debug_check_flag(SOF_DBG_DUMP_IPC_MESSAGE_PAYLOAD)) {
+		size_t header_bytes = sizeof(struct sof_ipc_reply);
+		char *payload = (char *)cdata;
+
+		payload += header_bytes;
+		sof_ipc3_dump_payload(sdev, payload, data_bytes - header_bytes);
+	}
+
+	kfree(cdata_chunk);
+
+	return ret;
+}
+
+int sof_ipc3_get_ext_windows(struct snd_sof_dev *sdev,
+			     const struct sof_ipc_ext_data_hdr *ext_hdr)
+{
+	const struct sof_ipc_window *w =
+		container_of(ext_hdr, struct sof_ipc_window, ext_hdr);
+
+	if (w->num_windows == 0 || w->num_windows > SOF_IPC_MAX_ELEMS)
+		return -EINVAL;
+
+	if (sdev->info_window) {
+		if (memcmp(sdev->info_window, w, ext_hdr->hdr.size)) {
+			dev_err(sdev->dev, "mismatch between window descriptor from extended manifest and mailbox");
+			return -EINVAL;
+		}
+		return 0;
+	}
+
+	/* keep a local copy of the data */
+	sdev->info_window = devm_kmemdup(sdev->dev, w, ext_hdr->hdr.size, GFP_KERNEL);
+	if (!sdev->info_window)
+		return -ENOMEM;
+
+	return 0;
+}
+
+int sof_ipc3_get_cc_info(struct snd_sof_dev *sdev,
+			 const struct sof_ipc_ext_data_hdr *ext_hdr)
+{
+	int ret;
+
+	const struct sof_ipc_cc_version *cc =
+		container_of(ext_hdr, struct sof_ipc_cc_version, ext_hdr);
+
+	if (sdev->cc_version) {
+		if (memcmp(sdev->cc_version, cc, cc->ext_hdr.hdr.size)) {
+			dev_err(sdev->dev,
+				"Receive diverged cc_version descriptions");
+			return -EINVAL;
+		}
+		return 0;
+	}
+
+	dev_dbg(sdev->dev,
+		"Firmware info: used compiler %s %d:%d:%d%s used optimization flags %s\n",
+		cc->name, cc->major, cc->minor, cc->micro, cc->desc, cc->optim);
+
+	/* create read-only cc_version debugfs to store compiler version info */
+	/* use local copy of the cc_version to prevent data corruption */
+	if (sdev->first_boot) {
+		sdev->cc_version = devm_kmemdup(sdev->dev, cc, cc->ext_hdr.hdr.size, GFP_KERNEL);
+		if (!sdev->cc_version)
+			return -ENOMEM;
+
+		ret = snd_sof_debugfs_buf_item(sdev, sdev->cc_version,
+					       cc->ext_hdr.hdr.size,
+					       "cc_version", 0444);
+
+		/* errors are only due to memory allocation, not debugfs */
+		if (ret < 0) {
+			dev_err(sdev->dev, "snd_sof_debugfs_buf_item failed\n");
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+/* parse the extended FW boot data structures from FW boot message */
+static int ipc3_fw_parse_ext_data(struct snd_sof_dev *sdev, u32 offset)
+{
+	struct sof_ipc_ext_data_hdr *ext_hdr;
+	void *ext_data;
+	int ret = 0;
+
+	ext_data = kzalloc(PAGE_SIZE, GFP_KERNEL);
+	if (!ext_data)
+		return -ENOMEM;
+
+	/* get first header */
+	snd_sof_dsp_block_read(sdev, SOF_FW_BLK_TYPE_SRAM, offset, ext_data,
+			       sizeof(*ext_hdr));
+	ext_hdr = ext_data;
+
+	while (ext_hdr->hdr.cmd == SOF_IPC_FW_READY) {
+		/* read in ext structure */
+		snd_sof_dsp_block_read(sdev, SOF_FW_BLK_TYPE_SRAM,
+				       offset + sizeof(*ext_hdr),
+				       (void *)((u8 *)ext_data + sizeof(*ext_hdr)),
+				       ext_hdr->hdr.size - sizeof(*ext_hdr));
+
+		dev_dbg(sdev->dev, "found ext header type %d size 0x%x\n",
+			ext_hdr->type, ext_hdr->hdr.size);
+
+		/* process structure data */
+		switch (ext_hdr->type) {
+		case SOF_IPC_EXT_WINDOW:
+			ret = sof_ipc3_get_ext_windows(sdev, ext_hdr);
+			break;
+		case SOF_IPC_EXT_CC_INFO:
+			ret = sof_ipc3_get_cc_info(sdev, ext_hdr);
+			break;
+		case SOF_IPC_EXT_UNUSED:
+		case SOF_IPC_EXT_PROBE_INFO:
+		case SOF_IPC_EXT_USER_ABI_INFO:
+			/* They are supported but we don't do anything here */
+			break;
+		default:
+			dev_info(sdev->dev, "unknown ext header type %d size 0x%x\n",
+				 ext_hdr->type, ext_hdr->hdr.size);
+			ret = 0;
+			break;
+		}
+
+		if (ret < 0) {
+			dev_err(sdev->dev, "Failed to parse ext data type %d\n",
+				ext_hdr->type);
+			break;
+		}
+
+		/* move to next header */
+		offset += ext_hdr->hdr.size;
+		snd_sof_dsp_block_read(sdev, SOF_FW_BLK_TYPE_SRAM, offset, ext_data,
+				       sizeof(*ext_hdr));
+		ext_hdr = ext_data;
+	}
+
+	kfree(ext_data);
+	return ret;
+}
+
+static void ipc3_get_windows(struct snd_sof_dev *sdev)
+{
+	struct sof_ipc_window_elem *elem;
+	u32 outbox_offset = 0;
+	u32 stream_offset = 0;
+	u32 inbox_offset = 0;
+	u32 outbox_size = 0;
+	u32 stream_size = 0;
+	u32 inbox_size = 0;
+	u32 debug_size = 0;
+	u32 debug_offset = 0;
+	int window_offset;
+	int i;
+
+	if (!sdev->info_window) {
+		dev_err(sdev->dev, "%s: No window info present\n", __func__);
+		return;
+	}
+
+	for (i = 0; i < sdev->info_window->num_windows; i++) {
+		elem = &sdev->info_window->window[i];
+
+		window_offset = snd_sof_dsp_get_window_offset(sdev, elem->id);
+		if (window_offset < 0) {
+			dev_warn(sdev->dev, "No offset for window %d\n", elem->id);
+			continue;
+		}
+
+		switch (elem->type) {
+		case SOF_IPC_REGION_UPBOX:
+			inbox_offset = window_offset + elem->offset;
+			inbox_size = elem->size;
+			snd_sof_debugfs_add_region_item(sdev, SOF_FW_BLK_TYPE_SRAM,
+							inbox_offset,
+							elem->size, "inbox",
+							SOF_DEBUGFS_ACCESS_D0_ONLY);
+			break;
+		case SOF_IPC_REGION_DOWNBOX:
+			outbox_offset = window_offset + elem->offset;
+			outbox_size = elem->size;
+			snd_sof_debugfs_add_region_item(sdev, SOF_FW_BLK_TYPE_SRAM,
+							outbox_offset,
+							elem->size, "outbox",
+							SOF_DEBUGFS_ACCESS_D0_ONLY);
+			break;
+		case SOF_IPC_REGION_TRACE:
+			snd_sof_debugfs_add_region_item(sdev, SOF_FW_BLK_TYPE_SRAM,
+							window_offset + elem->offset,
+							elem->size, "etrace",
+							SOF_DEBUGFS_ACCESS_D0_ONLY);
+			break;
+		case SOF_IPC_REGION_DEBUG:
+			debug_offset = window_offset + elem->offset;
+			debug_size = elem->size;
+			snd_sof_debugfs_add_region_item(sdev, SOF_FW_BLK_TYPE_SRAM,
+							window_offset + elem->offset,
+							elem->size, "debug",
+							SOF_DEBUGFS_ACCESS_D0_ONLY);
+			break;
+		case SOF_IPC_REGION_STREAM:
+			stream_offset = window_offset + elem->offset;
+			stream_size = elem->size;
+			snd_sof_debugfs_add_region_item(sdev, SOF_FW_BLK_TYPE_SRAM,
+							stream_offset,
+							elem->size, "stream",
+							SOF_DEBUGFS_ACCESS_D0_ONLY);
+			break;
+		case SOF_IPC_REGION_REGS:
+			snd_sof_debugfs_add_region_item(sdev, SOF_FW_BLK_TYPE_SRAM,
+							window_offset + elem->offset,
+							elem->size, "regs",
+							SOF_DEBUGFS_ACCESS_D0_ONLY);
+			break;
+		case SOF_IPC_REGION_EXCEPTION:
+			sdev->dsp_oops_offset = window_offset + elem->offset;
+			snd_sof_debugfs_add_region_item(sdev, SOF_FW_BLK_TYPE_SRAM,
+							window_offset + elem->offset,
+							elem->size, "exception",
+							SOF_DEBUGFS_ACCESS_D0_ONLY);
+			break;
+		default:
+			dev_err(sdev->dev, "%s: Illegal window info: %u\n",
+				__func__, elem->type);
+			return;
+		}
+	}
+
+	if (outbox_size == 0 || inbox_size == 0) {
+		dev_err(sdev->dev, "%s: Illegal mailbox window\n", __func__);
+		return;
+	}
+
+	sdev->dsp_box.offset = inbox_offset;
+	sdev->dsp_box.size = inbox_size;
+
+	sdev->host_box.offset = outbox_offset;
+	sdev->host_box.size = outbox_size;
+
+	sdev->stream_box.offset = stream_offset;
+	sdev->stream_box.size = stream_size;
+
+	sdev->debug_box.offset = debug_offset;
+	sdev->debug_box.size = debug_size;
+
+	dev_dbg(sdev->dev, " mailbox upstream 0x%x - size 0x%x\n",
+		inbox_offset, inbox_size);
+	dev_dbg(sdev->dev, " mailbox downstream 0x%x - size 0x%x\n",
+		outbox_offset, outbox_size);
+	dev_dbg(sdev->dev, " stream region 0x%x - size 0x%x\n",
+		stream_offset, stream_size);
+	dev_dbg(sdev->dev, " debug region 0x%x - size 0x%x\n",
+		debug_offset, debug_size);
+}
+
+static int ipc3_init_reply_data_buffer(struct snd_sof_dev *sdev)
+{
+	struct snd_sof_ipc_msg *msg = &sdev->ipc->msg;
+
+	msg->reply_data = devm_kzalloc(sdev->dev, SOF_IPC_MSG_MAX_SIZE, GFP_KERNEL);
+	if (!msg->reply_data)
+		return -ENOMEM;
+
+	sdev->ipc->max_payload_size = SOF_IPC_MSG_MAX_SIZE;
+
+	return 0;
+}
+
+int sof_ipc3_validate_fw_version(struct snd_sof_dev *sdev)
+{
+	struct sof_ipc_fw_ready *ready = &sdev->fw_ready;
+	struct sof_ipc_fw_version *v = &ready->version;
+
+	dev_info(sdev->dev,
+		 "Firmware info: version %d:%d:%d-%s\n",  v->major, v->minor,
+		 v->micro, v->tag);
+	dev_info(sdev->dev,
+		 "Firmware: ABI %d:%d:%d Kernel ABI %d:%d:%d\n",
+		 SOF_ABI_VERSION_MAJOR(v->abi_version),
+		 SOF_ABI_VERSION_MINOR(v->abi_version),
+		 SOF_ABI_VERSION_PATCH(v->abi_version),
+		 SOF_ABI_MAJOR, SOF_ABI_MINOR, SOF_ABI_PATCH);
+
+	if (SOF_ABI_VERSION_INCOMPATIBLE(SOF_ABI_VERSION, v->abi_version)) {
+		dev_err(sdev->dev, "incompatible FW ABI version\n");
+		return -EINVAL;
+	}
+
+	if (IS_ENABLED(CONFIG_SND_SOC_SOF_STRICT_ABI_CHECKS) &&
+	    SOF_ABI_VERSION_MINOR(v->abi_version) > SOF_ABI_MINOR) {
+		dev_err(sdev->dev, "FW ABI is more recent than kernel\n");
+		return -EINVAL;
+	}
+
+	if (ready->flags & SOF_IPC_INFO_BUILD)
+		dev_info(sdev->dev,
+			 "Firmware debug build %d on %s-%s - options:\n"
+			 " GDB: %s\n"
+			 " lock debug: %s\n"
+			 " lock vdebug: %s\n",
+			 v->build, v->date, v->time,
+			 str_enabled_disabled(ready->flags & SOF_IPC_INFO_GDB),
+			 str_enabled_disabled(ready->flags & SOF_IPC_INFO_LOCKS),
+			 str_enabled_disabled(ready->flags & SOF_IPC_INFO_LOCKSV));
+
+	/* copy the fw_version into debugfs at first boot */
+	memcpy(&sdev->fw_version, v, sizeof(*v));
+
+	return 0;
+}
+
+static int ipc3_fw_ready(struct snd_sof_dev *sdev, u32 cmd)
+{
+	struct sof_ipc_fw_ready *fw_ready = &sdev->fw_ready;
+	int offset;
+	int ret;
+
+	/* mailbox must be on 4k boundary */
+	offset = snd_sof_dsp_get_mailbox_offset(sdev);
+	if (offset < 0) {
+		dev_err(sdev->dev, "%s: no mailbox offset\n", __func__);
+		return offset;
+	}
+
+	dev_dbg(sdev->dev, "DSP is ready 0x%8.8x offset 0x%x\n", cmd, offset);
+
+	/* no need to re-check version/ABI for subsequent boots */
+	if (!sdev->first_boot)
+		return 0;
+
+	/*
+	 * copy data from the DSP FW ready offset
+	 * Subsequent error handling is not needed for BLK_TYPE_SRAM
+	 */
+	ret = snd_sof_dsp_block_read(sdev, SOF_FW_BLK_TYPE_SRAM, offset, fw_ready,
+				     sizeof(*fw_ready));
+	if (ret) {
+		dev_err(sdev->dev,
+			"Unable to read fw_ready, read from TYPE_SRAM failed\n");
+		return ret;
+	}
+
+	/* make sure ABI version is compatible */
+	ret = sof_ipc3_validate_fw_version(sdev);
+	if (ret < 0)
+		return ret;
+
+	/* now check for extended data */
+	ipc3_fw_parse_ext_data(sdev, offset + sizeof(struct sof_ipc_fw_ready));
+
+	ipc3_get_windows(sdev);
+
+	return ipc3_init_reply_data_buffer(sdev);
+}
+
+/* IPC stream position. */
+static void ipc3_period_elapsed(struct snd_sof_dev *sdev, u32 msg_id)
+{
+	struct snd_soc_component *scomp = sdev->component;
+	struct snd_sof_pcm_stream *stream;
+	struct sof_ipc_stream_posn posn;
+	struct snd_sof_pcm *spcm;
+	int direction, ret;
+
+	spcm = snd_sof_find_spcm_comp(scomp, msg_id, &direction);
+	if (!spcm) {
+		dev_err(sdev->dev, "period elapsed for unknown stream, msg_id %d\n",
+			msg_id);
+		return;
+	}
+
+	stream = &spcm->stream[direction];
+	ret = snd_sof_ipc_msg_data(sdev, stream, &posn, sizeof(posn));
+	if (ret < 0) {
+		dev_warn(sdev->dev, "failed to read stream position: %d\n", ret);
+		return;
+	}
+
+	trace_sof_ipc3_period_elapsed_position(sdev, &posn);
+
+	memcpy(&stream->posn, &posn, sizeof(posn));
+
+	if (spcm->pcm.compress)
+		snd_sof_compr_fragment_elapsed(stream->cstream);
+	else if (stream->substream->runtime &&
+		 !stream->substream->runtime->no_period_wakeup)
+		/* only inform ALSA for period_wakeup mode */
+		snd_sof_pcm_period_elapsed(stream->substream);
+}
+
+/* DSP notifies host of an XRUN within FW */
+static void ipc3_xrun(struct snd_sof_dev *sdev, u32 msg_id)
+{
+	struct snd_soc_component *scomp = sdev->component;
+	struct snd_sof_pcm_stream *stream;
+	struct sof_ipc_stream_posn posn;
+	struct snd_sof_pcm *spcm;
+	int direction, ret;
+
+	spcm = snd_sof_find_spcm_comp(scomp, msg_id, &direction);
+	if (!spcm) {
+		dev_err(sdev->dev, "XRUN for unknown stream, msg_id %d\n",
+			msg_id);
+		return;
+	}
+
+	stream = &spcm->stream[direction];
+	ret = snd_sof_ipc_msg_data(sdev, stream, &posn, sizeof(posn));
+	if (ret < 0) {
+		dev_warn(sdev->dev, "failed to read overrun position: %d\n", ret);
+		return;
+	}
+
+	dev_dbg(sdev->dev,  "posn XRUN: host %llx comp %d size %d\n",
+		posn.host_posn, posn.xrun_comp_id, posn.xrun_size);
+
+#if defined(CONFIG_SND_SOC_SOF_DEBUG_XRUN_STOP)
+	/* stop PCM on XRUN - used for pipeline debug */
+	memcpy(&stream->posn, &posn, sizeof(posn));
+	snd_pcm_stop_xrun(stream->substream);
+#endif
+}
+
+/* stream notifications from firmware */
+static void ipc3_stream_message(struct snd_sof_dev *sdev, void *msg_buf)
+{
+	struct sof_ipc_cmd_hdr *hdr = msg_buf;
+	u32 msg_type = hdr->cmd & SOF_CMD_TYPE_MASK;
+	u32 msg_id = SOF_IPC_MESSAGE_ID(hdr->cmd);
+
+	switch (msg_type) {
+	case SOF_IPC_STREAM_POSITION:
+		ipc3_period_elapsed(sdev, msg_id);
+		break;
+	case SOF_IPC_STREAM_TRIG_XRUN:
+		ipc3_xrun(sdev, msg_id);
+		break;
+	default:
+		dev_err(sdev->dev, "unhandled stream message %#x\n",
+			msg_id);
+		break;
+	}
+}
+
+/* component notifications from firmware */
+static void ipc3_comp_notification(struct snd_sof_dev *sdev, void *msg_buf)
+{
+	const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
+	struct sof_ipc_cmd_hdr *hdr = msg_buf;
+	u32 msg_type = hdr->cmd & SOF_CMD_TYPE_MASK;
+
+	switch (msg_type) {
+	case SOF_IPC_COMP_GET_VALUE:
+	case SOF_IPC_COMP_GET_DATA:
+		break;
+	default:
+		dev_err(sdev->dev, "unhandled component message %#x\n", msg_type);
+		return;
+	}
+
+	if (tplg_ops->control->update)
+		tplg_ops->control->update(sdev, msg_buf);
+}
+
+static void ipc3_trace_message(struct snd_sof_dev *sdev, void *msg_buf)
+{
+	struct sof_ipc_cmd_hdr *hdr = msg_buf;
+	u32 msg_type = hdr->cmd & SOF_CMD_TYPE_MASK;
+
+	switch (msg_type) {
+	case SOF_IPC_TRACE_DMA_POSITION:
+		ipc3_dtrace_posn_update(sdev, msg_buf);
+		break;
+	default:
+		dev_err(sdev->dev, "unhandled trace message %#x\n", msg_type);
+		break;
+	}
+}
+
+void sof_ipc3_do_rx_work(struct snd_sof_dev *sdev, struct sof_ipc_cmd_hdr *hdr, void *msg_buf)
+{
+	ipc3_rx_callback rx_callback = NULL;
+	u32 cmd;
+	int err;
+
+	ipc3_log_header(sdev->dev, "ipc rx", hdr->cmd);
+
+	if (hdr->size < sizeof(*hdr) || hdr->size > SOF_IPC_MSG_MAX_SIZE) {
+		dev_err(sdev->dev, "The received message size is invalid: %u\n",
+			hdr->size);
+		return;
+	}
+
+	cmd = hdr->cmd & SOF_GLB_TYPE_MASK;
+
+	/* check message type */
+	switch (cmd) {
+	case SOF_IPC_GLB_REPLY:
+		dev_err(sdev->dev, "ipc reply unknown\n");
+		break;
+	case SOF_IPC_FW_READY:
+		/* check for FW boot completion */
+		if (sdev->fw_state == SOF_FW_BOOT_IN_PROGRESS) {
+			err = ipc3_fw_ready(sdev, cmd);
+			if (err < 0)
+				sof_set_fw_state(sdev, SOF_FW_BOOT_READY_FAILED);
+			else
+				sof_set_fw_state(sdev, SOF_FW_BOOT_READY_OK);
+
+			/* wake up firmware loader */
+			wake_up(&sdev->boot_wait);
+		}
+		break;
+	case SOF_IPC_GLB_COMPOUND:
+	case SOF_IPC_GLB_TPLG_MSG:
+	case SOF_IPC_GLB_PM_MSG:
+		break;
+	case SOF_IPC_GLB_COMP_MSG:
+		rx_callback = ipc3_comp_notification;
+		break;
+	case SOF_IPC_GLB_STREAM_MSG:
+		rx_callback = ipc3_stream_message;
+		break;
+	case SOF_IPC_GLB_TRACE_MSG:
+		rx_callback = ipc3_trace_message;
+		break;
+	default:
+		dev_err(sdev->dev, "%s: Unknown DSP message: 0x%x\n", __func__, cmd);
+		break;
+	}
+
+	/* Call local handler for the message */
+	if (rx_callback)
+		rx_callback(sdev, msg_buf);
+
+	/* Notify registered clients */
+	sof_client_ipc_rx_dispatcher(sdev, msg_buf);
+
+	ipc3_log_header(sdev->dev, "ipc rx done", hdr->cmd);
+}
+EXPORT_SYMBOL(sof_ipc3_do_rx_work);
+
+/* DSP firmware has sent host a message  */
+static void sof_ipc3_rx_msg(struct snd_sof_dev *sdev)
+{
+	struct sof_ipc_cmd_hdr hdr;
+	void *msg_buf;
+	int err;
+
+	/* read back header */
+	err = snd_sof_ipc_msg_data(sdev, NULL, &hdr, sizeof(hdr));
+	if (err < 0) {
+		dev_warn(sdev->dev, "failed to read IPC header: %d\n", err);
+		return;
+	}
+
+	if (hdr.size < sizeof(hdr) || hdr.size > SOF_IPC_MSG_MAX_SIZE) {
+		dev_err(sdev->dev, "The received message size is invalid\n");
+		return;
+	}
+
+	/* read the full message */
+	msg_buf = kmalloc(hdr.size, GFP_KERNEL);
+	if (!msg_buf)
+		return;
+
+	err = snd_sof_ipc_msg_data(sdev, NULL, msg_buf, hdr.size);
+	if (err < 0) {
+		dev_err(sdev->dev, "%s: Failed to read message: %d\n", __func__, err);
+		kfree(msg_buf);
+		return;
+	}
+
+	sof_ipc3_do_rx_work(sdev, &hdr, msg_buf);
+
+	kfree(msg_buf);
+}
+
+static int sof_ipc3_set_core_state(struct snd_sof_dev *sdev, int core_idx, bool on)
+{
+	struct sof_ipc_pm_core_config core_cfg = {
+		.hdr.size = sizeof(core_cfg),
+		.hdr.cmd = SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_CORE_ENABLE,
+	};
+
+	if (on)
+		core_cfg.enable_mask = sdev->enabled_cores_mask | BIT(core_idx);
+	else
+		core_cfg.enable_mask = sdev->enabled_cores_mask & ~BIT(core_idx);
+
+	return sof_ipc3_tx_msg(sdev, &core_cfg, sizeof(core_cfg), NULL, 0, false);
+}
+
+static int sof_ipc3_ctx_ipc(struct snd_sof_dev *sdev, int cmd)
+{
+	struct sof_ipc_pm_ctx pm_ctx = {
+		.hdr.size = sizeof(pm_ctx),
+		.hdr.cmd = SOF_IPC_GLB_PM_MSG | cmd,
+	};
+
+	/* send ctx save ipc to dsp */
+	return sof_ipc3_tx_msg(sdev, &pm_ctx, sizeof(pm_ctx), NULL, 0, false);
+}
+
+static int sof_ipc3_ctx_save(struct snd_sof_dev *sdev)
+{
+	return sof_ipc3_ctx_ipc(sdev, SOF_IPC_PM_CTX_SAVE);
+}
+
+static int sof_ipc3_ctx_restore(struct snd_sof_dev *sdev)
+{
+	return sof_ipc3_ctx_ipc(sdev, SOF_IPC_PM_CTX_RESTORE);
+}
+
+static int sof_ipc3_set_pm_gate(struct snd_sof_dev *sdev, u32 flags)
+{
+	struct sof_ipc_pm_gate pm_gate;
+
+	memset(&pm_gate, 0, sizeof(pm_gate));
+
+	/* configure pm_gate ipc message */
+	pm_gate.hdr.size = sizeof(pm_gate);
+	pm_gate.hdr.cmd = SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_GATE;
+	pm_gate.flags = flags;
+
+	/* send pm_gate ipc to dsp */
+	return sof_ipc_tx_message_no_pm_no_reply(sdev->ipc, &pm_gate, sizeof(pm_gate));
+}
+
+static const struct sof_ipc_pm_ops ipc3_pm_ops = {
+	.ctx_save = sof_ipc3_ctx_save,
+	.ctx_restore = sof_ipc3_ctx_restore,
+	.set_core_state = sof_ipc3_set_core_state,
+	.set_pm_gate = sof_ipc3_set_pm_gate,
+};
+
+const struct sof_ipc_ops ipc3_ops = {
+	.tplg = &ipc3_tplg_ops,
+	.pm = &ipc3_pm_ops,
+	.pcm = &ipc3_pcm_ops,
+	.fw_loader = &ipc3_loader_ops,
+	.fw_tracing = &ipc3_dtrace_ops,
+
+	.tx_msg = sof_ipc3_tx_msg,
+	.rx_msg = sof_ipc3_rx_msg,
+	.set_get_data = sof_ipc3_set_get_data,
+	.get_reply = sof_ipc3_get_reply,
+};