Merge tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-tracegrafted

Pull tracing fixes from Steven Rostedt:

 - Fix error output of boot instance creation failure

   Currently if a boot instance creation fails, instead of printing out
   the name of the instance that failed, it prints "(null)". That is
   because it prints "cur_str" that had already been processed by
   strsep(). Print the saved name instead.

   While at it, print the error code of the failure.

 - Fix use-after-free for same named historgrams

   Histograms can be named so that they can be used in multiple events.
   But if the named histogram has a variable attached, the second event
   that uses the named histogram which duplicates it and needs to free
   the original after duplication leaves the old variable in place and
   still visible. If another histogram uses than variable, it will use
   the stale one which will try to reference the freed duplicate
   histogram and crash the kernel.

   Free the duplicate variables along with the duplicated histogram
   data.

 - Check return value of kthread_run() in event self test

   The events self tests uses a kthread for testing but does not check
   if it succeeded in creating a kthread. If the kthread creation were
   to fail, the code will still try to call kthread_stop() on the error
   returned.

 - Fix race between reading trace_pipe and updating subbuffer size

   If a user is reading the trace_pipe file at the same time they update
   the ring buffer sub-buffer size, can cause the trace_pipe read to
   read stale data. Add trace_access_lock() around updating the ring
   buffer sub-buffer size.

 - Fix eventfs_inode on failure path in creation of the events directory

   In the creation of the "events" directory, if after allocating the
   eventfs_inode a failure is detected, it calls cleanup_ei() which
   calls free_ei(). The free_ei() will test if eventfs_inode being freed
   has no children. It is a bug if it does. But on the failure case of
   the creation of the "events" directory, the children lists have not
   yet been initialized and the free will trigger a warning because
   list_empty() on an uninitialized list returns false.

   Move the initialization into init_ei() where it makes more sense and
   makes sure that a created eventfs_inode has its lists initialized
   upon creation.

 - Check return value of kthread_run() in ftrace direct sample code

   The sample code that shows how to use the ftrace direct calls does
   not test the return of kthread_run() to see if it succeeds. Return a
   failure if the kthread_run() doesn't succeed.

 - Clear user events state on fork in case of alloc failure

   On fork, the child gets a pointer to the parent's user events state.
   It makes a copy of it then updates the child's pointer to it. But if
   the allocation fails, the duplication function leaves the child with
   a pointer to its parent's descriptor. When the child cleans up its
   data, it will free the parent's descriptor while the parent is still
   using it.

   In the duplication function, set the child's user_event_mm to NULL
   before testing if the allocation succeeded, and when it exits it will
   not free the parent's descriptor.

 - Fix retry exhaustion in simple ring buffer reader swap

   simple_ring_buffer_swap_reader_page() starts with retry set to 8 and
   post-decrements it only after a failed link replacement. On the final
   attempt, a successful replacement leaves retry at zero, while a
   failed replacement leaves it at -1.

   But the check for success expects the retry value to be non-zero and
   exits with an error on zero. This is the opposite result. Fix it.

 - Fail nicely when the remote swap_reader_page() returns an error

   Currently, if the swap_reader_page() of a remote buffer fails, it
   triggers a WARN_ON_ONCE() and continues normally. Instead, have it
   exit with an error and a pr_warn() print instead of a full WARNING.

* tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  ring-buffer: Stop remote reader update when page swap fails
  tracing: Fix retry exhaustion in simple ring buffer reader swap
  tracing/user_events: Clear copied tracing state before fork duplication
  samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify
  samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-modify
  eventfs: Initialize ei->children and ei->list in init_ei()
  tracing: Fix use-after-free in trace_pipe read on sub-buffer order change
  tracing: Fix crash passing ERR_PTR to kthread_stop()
  tracing: Fix use-after-free with same-name named triggers
  tracing: Fix logged instance name on creation failure

1 files changed, 772 insertions, 0 deletions

diff --git a/sound/soc/sof/ipc3-control.c b/sound/soc/sof/ipc3-control.c
new file mode 100644
index 000000000..d1697401b
--- /dev/null
+++ b/sound/soc/sof/ipc3-control.c
@@ -0,0 +1,772 @@
+// 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 "sof-priv.h"
+#include "sof-audio.h"
+#include "ipc3-priv.h"
+
+/* IPC set()/get() for kcontrols. */
+static int sof_ipc3_set_get_kcontrol_data(struct snd_sof_control *scontrol,
+					  bool set, bool lock)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scontrol->scomp);
+	struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
+	const struct sof_ipc_ops *iops = sdev->ipc->ops;
+	enum sof_ipc_ctrl_type ctrl_type;
+	struct snd_sof_widget *swidget;
+	bool widget_found = false;
+	u32 ipc_cmd, msg_bytes;
+	int ret = 0;
+
+	list_for_each_entry(swidget, &sdev->widget_list, list) {
+		if (swidget->comp_id == scontrol->comp_id) {
+			widget_found = true;
+			break;
+		}
+	}
+
+	if (!widget_found) {
+		dev_err(sdev->dev, "%s: can't find widget with id %d\n", __func__,
+			scontrol->comp_id);
+		return -EINVAL;
+	}
+
+	if (lock)
+		mutex_lock(&swidget->setup_mutex);
+	else
+		lockdep_assert_held(&swidget->setup_mutex);
+
+	/*
+	 * Volatile controls should always be part of static pipelines and the
+	 * widget use_count would always be > 0 in this case. For the others,
+	 * just return the cached value if the widget is not set up.
+	 */
+	if (!swidget->use_count)
+		goto unlock;
+
+	/*
+	 * Select the IPC cmd and the ctrl_type based on the ctrl_cmd and the
+	 * direction
+	 * Note: SOF_CTRL_TYPE_VALUE_COMP_* is not used and supported currently
+	 *	 for ctrl_type
+	 */
+	if (cdata->cmd == SOF_CTRL_CMD_BINARY) {
+		ipc_cmd = set ? SOF_IPC_COMP_SET_DATA : SOF_IPC_COMP_GET_DATA;
+		ctrl_type = set ? SOF_CTRL_TYPE_DATA_SET : SOF_CTRL_TYPE_DATA_GET;
+	} else {
+		ipc_cmd = set ? SOF_IPC_COMP_SET_VALUE : SOF_IPC_COMP_GET_VALUE;
+		ctrl_type = set ? SOF_CTRL_TYPE_VALUE_CHAN_SET : SOF_CTRL_TYPE_VALUE_CHAN_GET;
+	}
+
+	cdata->rhdr.hdr.cmd = SOF_IPC_GLB_COMP_MSG | ipc_cmd;
+	cdata->type = ctrl_type;
+	cdata->comp_id = scontrol->comp_id;
+	cdata->msg_index = 0;
+
+	/* calculate header and data size */
+	switch (cdata->type) {
+	case SOF_CTRL_TYPE_VALUE_CHAN_GET:
+	case SOF_CTRL_TYPE_VALUE_CHAN_SET:
+		cdata->num_elems = scontrol->num_channels;
+
+		msg_bytes = scontrol->num_channels *
+			    sizeof(struct sof_ipc_ctrl_value_chan);
+		msg_bytes += sizeof(struct sof_ipc_ctrl_data);
+		break;
+	case SOF_CTRL_TYPE_DATA_GET:
+	case SOF_CTRL_TYPE_DATA_SET:
+		cdata->num_elems = cdata->data->size;
+
+		msg_bytes = cdata->data->size;
+		msg_bytes += sizeof(struct sof_ipc_ctrl_data) +
+			     sizeof(struct sof_abi_hdr);
+		break;
+	default:
+		ret = -EINVAL;
+		goto unlock;
+	}
+
+	cdata->rhdr.hdr.size = msg_bytes;
+	cdata->elems_remaining = 0;
+
+	ret = iops->set_get_data(sdev, cdata, cdata->rhdr.hdr.size, set);
+	if (!set)
+		goto unlock;
+
+	/* It is a set-data operation, and we have a backup that we can restore */
+	if (ret < 0) {
+		if (!scontrol->old_ipc_control_data)
+			goto unlock;
+		/*
+		 * Current ipc_control_data is not valid, we use the last known good
+		 * configuration
+		 */
+		memcpy(scontrol->ipc_control_data, scontrol->old_ipc_control_data,
+		       scontrol->max_size);
+		kfree(scontrol->old_ipc_control_data);
+		scontrol->old_ipc_control_data = NULL;
+		/* Send the last known good configuration to firmware */
+		ret = iops->set_get_data(sdev, cdata, cdata->rhdr.hdr.size, set);
+		if (ret < 0)
+			goto unlock;
+	}
+
+unlock:
+	if (lock)
+		mutex_unlock(&swidget->setup_mutex);
+
+	return ret;
+}
+
+static void sof_ipc3_refresh_control(struct snd_sof_control *scontrol)
+{
+	struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
+	struct snd_soc_component *scomp = scontrol->scomp;
+	int ret;
+
+	if (!scontrol->comp_data_dirty)
+		return;
+
+	if (!pm_runtime_active(scomp->dev))
+		return;
+
+	/* set the ABI header values */
+	cdata->data->magic = SOF_ABI_MAGIC;
+	cdata->data->abi = SOF_ABI_VERSION;
+
+	/* refresh the component data from DSP */
+	scontrol->comp_data_dirty = false;
+	ret = sof_ipc3_set_get_kcontrol_data(scontrol, false, true);
+	if (ret < 0) {
+		dev_err(scomp->dev, "Failed to get control data: %d\n", ret);
+
+		/* Set the flag to re-try next time to get the data */
+		scontrol->comp_data_dirty = true;
+	}
+}
+
+static int sof_ipc3_volume_get(struct snd_sof_control *scontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
+	unsigned int channels = scontrol->num_channels;
+	unsigned int i;
+
+	sof_ipc3_refresh_control(scontrol);
+
+	/* read back each channel */
+	for (i = 0; i < channels; i++)
+		ucontrol->value.integer.value[i] = ipc_to_mixer(cdata->chanv[i].value,
+								scontrol->volume_table,
+								scontrol->max + 1);
+
+	return 0;
+}
+
+static bool sof_ipc3_volume_put(struct snd_sof_control *scontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
+	struct snd_soc_component *scomp = scontrol->scomp;
+	unsigned int channels = scontrol->num_channels;
+	unsigned int i;
+	bool change = false;
+
+	/* update each channel */
+	for (i = 0; i < channels; i++) {
+		u32 value = mixer_to_ipc(ucontrol->value.integer.value[i],
+					 scontrol->volume_table, scontrol->max + 1);
+
+		change = change || (value != cdata->chanv[i].value);
+		cdata->chanv[i].channel = i;
+		cdata->chanv[i].value = value;
+	}
+
+	/* notify DSP of mixer updates */
+	if (pm_runtime_active(scomp->dev)) {
+		int ret = sof_ipc3_set_get_kcontrol_data(scontrol, true, true);
+
+		if (ret < 0) {
+			dev_err(scomp->dev, "Failed to set mixer updates for %s\n",
+				scontrol->name);
+			return false;
+		}
+	}
+
+	return change;
+}
+
+static int sof_ipc3_switch_get(struct snd_sof_control *scontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
+	unsigned int channels = scontrol->num_channels;
+	unsigned int i;
+
+	sof_ipc3_refresh_control(scontrol);
+
+	/* read back each channel */
+	for (i = 0; i < channels; i++)
+		ucontrol->value.integer.value[i] = cdata->chanv[i].value;
+
+	return 0;
+}
+
+static bool sof_ipc3_switch_put(struct snd_sof_control *scontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
+	struct snd_soc_component *scomp = scontrol->scomp;
+	unsigned int channels = scontrol->num_channels;
+	unsigned int i;
+	bool change = false;
+	u32 value;
+
+	/* update each channel */
+	for (i = 0; i < channels; i++) {
+		value = ucontrol->value.integer.value[i];
+		change = change || (value != cdata->chanv[i].value);
+		cdata->chanv[i].channel = i;
+		cdata->chanv[i].value = value;
+	}
+
+	/* notify DSP of mixer updates */
+	if (pm_runtime_active(scomp->dev)) {
+		int ret = sof_ipc3_set_get_kcontrol_data(scontrol, true, true);
+
+		if (ret < 0) {
+			dev_err(scomp->dev, "Failed to set mixer updates for %s\n",
+				scontrol->name);
+			return false;
+		}
+	}
+
+	return change;
+}
+
+static int sof_ipc3_enum_get(struct snd_sof_control *scontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
+	unsigned int channels = scontrol->num_channels;
+	unsigned int i;
+
+	sof_ipc3_refresh_control(scontrol);
+
+	/* read back each channel */
+	for (i = 0; i < channels; i++)
+		ucontrol->value.enumerated.item[i] = cdata->chanv[i].value;
+
+	return 0;
+}
+
+static bool sof_ipc3_enum_put(struct snd_sof_control *scontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
+	struct snd_soc_component *scomp = scontrol->scomp;
+	unsigned int channels = scontrol->num_channels;
+	unsigned int i;
+	bool change = false;
+	u32 value;
+
+	/* update each channel */
+	for (i = 0; i < channels; i++) {
+		value = ucontrol->value.enumerated.item[i];
+		change = change || (value != cdata->chanv[i].value);
+		cdata->chanv[i].channel = i;
+		cdata->chanv[i].value = value;
+	}
+
+	/* notify DSP of enum updates */
+	if (pm_runtime_active(scomp->dev)) {
+		int ret = sof_ipc3_set_get_kcontrol_data(scontrol, true, true);
+
+		if (ret < 0) {
+			dev_err(scomp->dev, "Failed to set enum updates for %s\n",
+				scontrol->name);
+			return false;
+		}
+	}
+
+	return change;
+}
+
+static int sof_ipc3_bytes_get(struct snd_sof_control *scontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
+	struct snd_soc_component *scomp = scontrol->scomp;
+	struct sof_abi_hdr *data = cdata->data;
+	size_t size;
+
+	sof_ipc3_refresh_control(scontrol);
+
+	if (scontrol->max_size > sizeof(ucontrol->value.bytes.data)) {
+		dev_err_ratelimited(scomp->dev, "data max %zu exceeds ucontrol data array size\n",
+				    scontrol->max_size);
+		return -EINVAL;
+	}
+
+	/* be->max has been verified to be >= sizeof(struct sof_abi_hdr) */
+	if (data->size > scontrol->max_size - sizeof(*cdata) -
+				    sizeof(*data)) {
+		dev_err_ratelimited(scomp->dev,
+				    "%u bytes of control data is invalid, max is %zu\n",
+				    data->size,
+				    scontrol->max_size - sizeof(*cdata) -
+				    sizeof(*data));
+		return -EINVAL;
+	}
+
+	size = data->size + sizeof(*data);
+
+	/* copy back to kcontrol */
+	memcpy(ucontrol->value.bytes.data, data, size);
+
+	return 0;
+}
+
+static int sof_ipc3_bytes_put(struct snd_sof_control *scontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
+	struct snd_soc_component *scomp = scontrol->scomp;
+	struct sof_abi_hdr *data = cdata->data;
+	const struct sof_abi_hdr *new_hdr =
+		(const struct sof_abi_hdr *)ucontrol->value.bytes.data;
+	size_t size;
+
+	if (scontrol->max_size > sizeof(ucontrol->value.bytes.data)) {
+		dev_err_ratelimited(scomp->dev, "data max %zu exceeds ucontrol data array size\n",
+				    scontrol->max_size);
+		return -EINVAL;
+	}
+
+	/* Validate the new data's size, not the old one */
+	if (new_hdr->size > scontrol->max_size - sizeof(*cdata) -
+				    sizeof(*new_hdr)) {
+		dev_err_ratelimited(scomp->dev,
+				    "data size too big %u bytes max is %zu\n",
+				    new_hdr->size,
+				    scontrol->max_size - sizeof(*cdata) -
+				    sizeof(*new_hdr));
+		return -EINVAL;
+	}
+
+	size = new_hdr->size + sizeof(*new_hdr);
+
+	/* copy from kcontrol */
+	memcpy(data, ucontrol->value.bytes.data, size);
+
+	/* notify DSP of byte control updates */
+	if (pm_runtime_active(scomp->dev))
+		return sof_ipc3_set_get_kcontrol_data(scontrol, true, true);
+
+	return 0;
+}
+
+static int sof_ipc3_bytes_ext_put(struct snd_sof_control *scontrol,
+				  const unsigned int __user *binary_data,
+				  unsigned int size)
+{
+	const struct snd_ctl_tlv __user *tlvd = (const struct snd_ctl_tlv __user *)binary_data;
+	struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
+	struct snd_soc_component *scomp = scontrol->scomp;
+	struct snd_ctl_tlv header;
+	int ret = -EINVAL;
+
+	/*
+	 * The beginning of bytes data contains a header from where
+	 * the length (as bytes) is needed to know the correct copy
+	 * length of data from tlvd->tlv.
+	 */
+	if (copy_from_user(&header, tlvd, sizeof(struct snd_ctl_tlv)))
+		return -EFAULT;
+
+	/* make sure TLV info is consistent */
+	if (header.length + sizeof(struct snd_ctl_tlv) > size) {
+		dev_err_ratelimited(scomp->dev, "Inconsistent TLV, data %d + header %zu > %d\n",
+				    header.length, sizeof(struct snd_ctl_tlv), size);
+		return -EINVAL;
+	}
+
+	/* be->max is coming from topology */
+	if (header.length > scontrol->max_size - sizeof(*cdata)) {
+		dev_err_ratelimited(scomp->dev, "Bytes data size %u exceeds max %zu\n",
+				    header.length, scontrol->max_size - sizeof(*cdata));
+		return -EINVAL;
+	}
+
+	/* Ensure the data is large enough to contain the ABI header */
+	if (header.length < sizeof(struct sof_abi_hdr)) {
+		dev_err_ratelimited(scomp->dev,
+				    "Bytes data size %u less than ABI header %zu\n",
+				    header.length, sizeof(struct sof_abi_hdr));
+		return -EINVAL;
+	}
+
+	/* Check that header id matches the command */
+	if (header.numid != cdata->cmd) {
+		dev_err_ratelimited(scomp->dev, "Incorrect command for bytes put %d\n",
+				    header.numid);
+		return -EINVAL;
+	}
+
+	if (!scontrol->old_ipc_control_data) {
+		/* Create a backup of the current, valid bytes control */
+		scontrol->old_ipc_control_data = kmemdup(scontrol->ipc_control_data,
+							 scontrol->max_size, GFP_KERNEL);
+		if (!scontrol->old_ipc_control_data)
+			return -ENOMEM;
+	}
+
+	if (copy_from_user(cdata->data, tlvd->tlv, header.length)) {
+		ret = -EFAULT;
+		goto err_restore;
+	}
+
+	if (cdata->data->magic != SOF_ABI_MAGIC) {
+		dev_err_ratelimited(scomp->dev, "Wrong ABI magic 0x%08x\n", cdata->data->magic);
+		goto err_restore;
+	}
+
+	if (SOF_ABI_VERSION_INCOMPATIBLE(SOF_ABI_VERSION, cdata->data->abi)) {
+		dev_err_ratelimited(scomp->dev, "Incompatible ABI version 0x%08x\n",
+				    cdata->data->abi);
+		goto err_restore;
+	}
+
+	/* be->max has been verified to be >= sizeof(struct sof_abi_hdr) */
+	if (cdata->data->size > scontrol->max_size - sizeof(*cdata) - sizeof(struct sof_abi_hdr)) {
+		dev_err_ratelimited(scomp->dev, "Mismatch in ABI data size (truncated?)\n");
+		goto err_restore;
+	}
+
+	/* notify DSP of byte control updates */
+	if (pm_runtime_active(scomp->dev)) {
+		/* Actually send the data to the DSP; this is an opportunity to validate the data */
+		return sof_ipc3_set_get_kcontrol_data(scontrol, true, true);
+	}
+
+	return 0;
+
+err_restore:
+	/* If we have an issue, we restore the old, valid bytes control data */
+	if (scontrol->old_ipc_control_data) {
+		memcpy(cdata, scontrol->old_ipc_control_data, scontrol->max_size);
+		kfree(scontrol->old_ipc_control_data);
+		scontrol->old_ipc_control_data = NULL;
+	}
+	return ret;
+}
+
+static int _sof_ipc3_bytes_ext_get(struct snd_sof_control *scontrol,
+				   const unsigned int __user *binary_data,
+				   unsigned int size, bool from_dsp)
+{
+	struct snd_ctl_tlv __user *tlvd = (struct snd_ctl_tlv __user *)binary_data;
+	struct sof_ipc_ctrl_data *cdata = scontrol->ipc_control_data;
+	struct snd_soc_component *scomp = scontrol->scomp;
+	struct snd_ctl_tlv header;
+	size_t data_size;
+
+	/*
+	 * Decrement the limit by ext bytes header size to
+	 * ensure the user space buffer is not exceeded.
+	 */
+	if (size < sizeof(struct snd_ctl_tlv))
+		return -ENOSPC;
+
+	size -= sizeof(struct snd_ctl_tlv);
+
+	/* set the ABI header values */
+	cdata->data->magic = SOF_ABI_MAGIC;
+	cdata->data->abi = SOF_ABI_VERSION;
+
+	/* get all the component data from DSP */
+	if (from_dsp) {
+		int ret = sof_ipc3_set_get_kcontrol_data(scontrol, false, true);
+
+		if (ret < 0)
+			return ret;
+	}
+
+	/* check data size doesn't exceed max coming from topology */
+	if (cdata->data->size > scontrol->max_size - sizeof(*cdata) -
+				sizeof(struct sof_abi_hdr)) {
+		dev_err_ratelimited(scomp->dev,
+				    "User data size %u exceeds max size %zu\n",
+				    cdata->data->size,
+				    scontrol->max_size - sizeof(*cdata) -
+				    sizeof(struct sof_abi_hdr));
+		return -EINVAL;
+	}
+
+	data_size = cdata->data->size + sizeof(struct sof_abi_hdr);
+
+	/* make sure we don't exceed size provided by user space for data */
+	if (data_size > size)
+		return -ENOSPC;
+
+	header.numid = cdata->cmd;
+	header.length = data_size;
+	if (copy_to_user(tlvd, &header, sizeof(struct snd_ctl_tlv)))
+		return -EFAULT;
+
+	if (copy_to_user(tlvd->tlv, cdata->data, data_size))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int sof_ipc3_bytes_ext_get(struct snd_sof_control *scontrol,
+				  const unsigned int __user *binary_data, unsigned int size)
+{
+	return _sof_ipc3_bytes_ext_get(scontrol, binary_data, size, false);
+}
+
+static int sof_ipc3_bytes_ext_volatile_get(struct snd_sof_control *scontrol,
+					   const unsigned int __user *binary_data,
+					   unsigned int size)
+{
+	return _sof_ipc3_bytes_ext_get(scontrol, binary_data, size, true);
+}
+
+static void snd_sof_update_control(struct snd_sof_control *scontrol,
+				   struct sof_ipc_ctrl_data *cdata)
+{
+	struct snd_soc_component *scomp = scontrol->scomp;
+	struct sof_ipc_ctrl_data *local_cdata;
+	int i;
+
+	local_cdata = scontrol->ipc_control_data;
+
+	if (cdata->cmd == SOF_CTRL_CMD_BINARY) {
+		if (cdata->num_elems != local_cdata->data->size) {
+			dev_err(scomp->dev, "cdata binary size mismatch %u - %u\n",
+				cdata->num_elems, local_cdata->data->size);
+			return;
+		}
+
+		/* Verify the size fits within the allocation */
+		if (cdata->num_elems > scontrol->max_size - sizeof(*local_cdata) -
+					sizeof(*local_cdata->data)) {
+			dev_err(scomp->dev,
+				"cdata binary size %u exceeds buffer\n",
+				cdata->num_elems);
+			return;
+		}
+
+		/* copy the new binary data */
+		memcpy(local_cdata->data, cdata->data, cdata->num_elems);
+	} else if (cdata->num_elems != scontrol->num_channels) {
+		dev_err(scomp->dev, "cdata channel count mismatch %u - %d\n",
+			cdata->num_elems, scontrol->num_channels);
+	} else {
+		/* copy the new values */
+		for (i = 0; i < cdata->num_elems; i++)
+			local_cdata->chanv[i].value = cdata->chanv[i].value;
+	}
+}
+
+static void sof_ipc3_control_update(struct snd_sof_dev *sdev, void *ipc_control_message)
+{
+	struct sof_ipc_ctrl_data *cdata = ipc_control_message;
+	struct snd_soc_dapm_widget *widget;
+	struct snd_sof_control *scontrol;
+	struct snd_sof_widget *swidget;
+	struct snd_kcontrol *kc = NULL;
+	struct soc_mixer_control *sm;
+	struct soc_bytes_ext *be;
+	size_t expected_size;
+	struct soc_enum *se;
+	bool found = false;
+	int i, type;
+
+	if (cdata->type == SOF_CTRL_TYPE_VALUE_COMP_GET ||
+	    cdata->type == SOF_CTRL_TYPE_VALUE_COMP_SET) {
+		dev_err(sdev->dev, "Component data is not supported in control notification\n");
+		return;
+	}
+
+	/* Find the swidget first */
+	list_for_each_entry(swidget, &sdev->widget_list, list) {
+		if (swidget->comp_id == cdata->comp_id) {
+			found = true;
+			break;
+		}
+	}
+
+	if (!found)
+		return;
+
+	/* Translate SOF cmd to TPLG type */
+	switch (cdata->cmd) {
+	case SOF_CTRL_CMD_VOLUME:
+	case SOF_CTRL_CMD_SWITCH:
+		type = SND_SOC_TPLG_TYPE_MIXER;
+		break;
+	case SOF_CTRL_CMD_BINARY:
+		type = SND_SOC_TPLG_TYPE_BYTES;
+		break;
+	case SOF_CTRL_CMD_ENUM:
+		type = SND_SOC_TPLG_TYPE_ENUM;
+		break;
+	default:
+		dev_err(sdev->dev, "Unknown cmd %u in %s\n", cdata->cmd, __func__);
+		return;
+	}
+
+	widget = swidget->widget;
+	for (i = 0; i < widget->num_kcontrols; i++) {
+		/* skip non matching types or non matching indexes within type */
+		if (widget->dobj.widget.kcontrol_type[i] == type &&
+		    widget->kcontrol_news[i].index == cdata->index) {
+			kc = widget->kcontrols[i];
+			break;
+		}
+	}
+
+	if (!kc)
+		return;
+
+	switch (cdata->cmd) {
+	case SOF_CTRL_CMD_VOLUME:
+	case SOF_CTRL_CMD_SWITCH:
+		sm = (struct soc_mixer_control *)kc->private_value;
+		scontrol = sm->dobj.private;
+		break;
+	case SOF_CTRL_CMD_BINARY:
+		be = (struct soc_bytes_ext *)kc->private_value;
+		scontrol = be->dobj.private;
+		break;
+	case SOF_CTRL_CMD_ENUM:
+		se = (struct soc_enum *)kc->private_value;
+		scontrol = se->dobj.private;
+		break;
+	default:
+		return;
+	}
+
+	switch (cdata->type) {
+	case SOF_CTRL_TYPE_VALUE_CHAN_GET:
+	case SOF_CTRL_TYPE_VALUE_CHAN_SET:
+		if (check_mul_overflow((size_t)cdata->num_elems,
+				       sizeof(struct sof_ipc_ctrl_value_chan),
+				       &expected_size))
+			return;
+		if (check_add_overflow(expected_size,
+				       sizeof(struct sof_ipc_ctrl_data),
+				       &expected_size))
+			return;
+		break;
+	case SOF_CTRL_TYPE_DATA_GET:
+	case SOF_CTRL_TYPE_DATA_SET:
+		if (check_add_overflow((size_t)cdata->num_elems,
+				       sizeof(struct sof_abi_hdr),
+				       &expected_size))
+			return;
+		if (check_add_overflow(expected_size,
+				       sizeof(struct sof_ipc_ctrl_data),
+				       &expected_size))
+			return;
+		break;
+	default:
+		return;
+	}
+
+	if (cdata->rhdr.hdr.size != expected_size) {
+		dev_err(sdev->dev, "Component notification size mismatch\n");
+		return;
+	}
+
+	if (cdata->num_elems)
+		/*
+		 * The message includes the updated value/data, update the
+		 * control's local cache using the received notification
+		 */
+		snd_sof_update_control(scontrol, cdata);
+	else
+		/* Mark the scontrol that the value/data is changed in SOF */
+		scontrol->comp_data_dirty = true;
+
+	snd_ctl_notify_one(swidget->scomp->card->snd_card, SNDRV_CTL_EVENT_MASK_VALUE, kc, 0);
+}
+
+static int sof_ipc3_widget_kcontrol_setup(struct snd_sof_dev *sdev,
+					  struct snd_sof_widget *swidget)
+{
+	struct snd_sof_control *scontrol;
+	int ret;
+
+	/* set up all controls for the widget */
+	list_for_each_entry(scontrol, &sdev->kcontrol_list, list)
+		if (scontrol->comp_id == swidget->comp_id) {
+			/* set kcontrol data in DSP */
+			ret = sof_ipc3_set_get_kcontrol_data(scontrol, true, false);
+			if (ret < 0) {
+				dev_err(sdev->dev,
+					"kcontrol %d set up failed for widget %s\n",
+					scontrol->comp_id, swidget->widget->name);
+				return ret;
+			}
+
+			/*
+			 * Read back the data from the DSP for static widgets.
+			 * This is particularly useful for binary kcontrols
+			 * associated with static pipeline widgets to initialize
+			 * the data size to match that in the DSP.
+			 */
+			if (swidget->dynamic_pipeline_widget)
+				continue;
+
+			ret = sof_ipc3_set_get_kcontrol_data(scontrol, false, false);
+			if (ret < 0)
+				dev_warn(sdev->dev,
+					 "kcontrol %d read failed for widget %s\n",
+					 scontrol->comp_id, swidget->widget->name);
+		}
+
+	return 0;
+}
+
+static int
+sof_ipc3_set_up_volume_table(struct snd_sof_control *scontrol, int tlv[SOF_TLV_ITEMS], int size)
+{
+	int i;
+
+	/* init the volume table */
+	scontrol->volume_table = kcalloc(size, sizeof(u32), GFP_KERNEL);
+	if (!scontrol->volume_table)
+		return -ENOMEM;
+
+	/* populate the volume table */
+	for (i = 0; i < size ; i++)
+		scontrol->volume_table[i] = vol_compute_gain(i, tlv);
+
+	return 0;
+}
+
+const struct sof_ipc_tplg_control_ops tplg_ipc3_control_ops = {
+	.volume_put = sof_ipc3_volume_put,
+	.volume_get = sof_ipc3_volume_get,
+	.switch_put = sof_ipc3_switch_put,
+	.switch_get = sof_ipc3_switch_get,
+	.enum_put = sof_ipc3_enum_put,
+	.enum_get = sof_ipc3_enum_get,
+	.bytes_put = sof_ipc3_bytes_put,
+	.bytes_get = sof_ipc3_bytes_get,
+	.bytes_ext_put = sof_ipc3_bytes_ext_put,
+	.bytes_ext_get = sof_ipc3_bytes_ext_get,
+	.bytes_ext_volatile_get = sof_ipc3_bytes_ext_volatile_get,
+	.update = sof_ipc3_control_update,
+	.widget_kcontrol_setup = sof_ipc3_widget_kcontrol_setup,
+	.set_up_volume_table = sof_ipc3_set_up_volume_table,
+};