1 files changed, 57 insertions, 602 deletions

diff --git a/sound/soc/sof/debug.c b/sound/soc/sof/debug.c
index 6d6757075f7c..b24943a65c89 100644
--- a/sound/soc/sof/debug.c
+++ b/sound/soc/sof/debug.c
@@ -3,7 +3,7 @@
 // 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) 2018 Intel Corporation. All rights reserved.
+// Copyright(c) 2018 Intel Corporation
 //
 // Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
 //
@@ -19,520 +19,6 @@
 #include "sof-priv.h"
 #include "ops.h"
 
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_PROBES)
-#include "sof-probes.h"
-
-/**
- * strsplit_u32 - Split string into sequence of u32 tokens
- * @buf:	String to split into tokens.
- * @delim:	String containing delimiter characters.
- * @tkns:	Returned u32 sequence pointer.
- * @num_tkns:	Returned number of tokens obtained.
- */
-static int
-strsplit_u32(char **buf, const char *delim, u32 **tkns, size_t *num_tkns)
-{
-	char *s;
-	u32 *data, *tmp;
-	size_t count = 0;
-	size_t cap = 32;
-	int ret = 0;
-
-	*tkns = NULL;
-	*num_tkns = 0;
-	data = kcalloc(cap, sizeof(*data), GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	while ((s = strsep(buf, delim)) != NULL) {
-		ret = kstrtouint(s, 0, data + count);
-		if (ret)
-			goto exit;
-		if (++count >= cap) {
-			cap *= 2;
-			tmp = krealloc(data, cap * sizeof(*data), GFP_KERNEL);
-			if (!tmp) {
-				ret = -ENOMEM;
-				goto exit;
-			}
-			data = tmp;
-		}
-	}
-
-	if (!count)
-		goto exit;
-	*tkns = kmemdup(data, count * sizeof(*data), GFP_KERNEL);
-	if (*tkns == NULL) {
-		ret = -ENOMEM;
-		goto exit;
-	}
-	*num_tkns = count;
-
-exit:
-	kfree(data);
-	return ret;
-}
-
-static int tokenize_input(const char __user *from, size_t count,
-		loff_t *ppos, u32 **tkns, size_t *num_tkns)
-{
-	char *buf;
-	int ret;
-
-	buf = kmalloc(count + 1, GFP_KERNEL);
-	if (!buf)
-		return -ENOMEM;
-
-	ret = simple_write_to_buffer(buf, count, ppos, from, count);
-	if (ret != count) {
-		ret = ret >= 0 ? -EIO : ret;
-		goto exit;
-	}
-
-	buf[count] = '\0';
-	ret = strsplit_u32((char **)&buf, ",", tkns, num_tkns);
-exit:
-	kfree(buf);
-	return ret;
-}
-
-static ssize_t probe_points_read(struct file *file,
-		char __user *to, size_t count, loff_t *ppos)
-{
-	struct snd_sof_dfsentry *dfse = file->private_data;
-	struct snd_sof_dev *sdev = dfse->sdev;
-	struct sof_probe_point_desc *desc;
-	size_t num_desc, len = 0;
-	char *buf;
-	int i, ret;
-
-	if (sdev->extractor_stream_tag == SOF_PROBE_INVALID_NODE_ID) {
-		dev_warn(sdev->dev, "no extractor stream running\n");
-		return -ENOENT;
-	}
-
-	buf = kzalloc(PAGE_SIZE, GFP_KERNEL);
-	if (!buf)
-		return -ENOMEM;
-
-	ret = sof_ipc_probe_points_info(sdev, &desc, &num_desc);
-	if (ret < 0)
-		goto exit;
-
-	for (i = 0; i < num_desc; i++) {
-		ret = snprintf(buf + len, PAGE_SIZE - len,
-			"Id: %#010x  Purpose: %d  Node id: %#x\n",
-			desc[i].buffer_id, desc[i].purpose, desc[i].stream_tag);
-		if (ret < 0)
-			goto free_desc;
-		len += ret;
-	}
-
-	ret = simple_read_from_buffer(to, count, ppos, buf, len);
-free_desc:
-	kfree(desc);
-exit:
-	kfree(buf);
-	return ret;
-}
-
-static ssize_t probe_points_write(struct file *file,
-		const char __user *from, size_t count, loff_t *ppos)
-{
-	struct snd_sof_dfsentry *dfse = file->private_data;
-	struct snd_sof_dev *sdev = dfse->sdev;
-	struct sof_probe_point_desc *desc;
-	size_t num_tkns, bytes;
-	u32 *tkns;
-	int ret;
-
-	if (sdev->extractor_stream_tag == SOF_PROBE_INVALID_NODE_ID) {
-		dev_warn(sdev->dev, "no extractor stream running\n");
-		return -ENOENT;
-	}
-
-	ret = tokenize_input(from, count, ppos, &tkns, &num_tkns);
-	if (ret < 0)
-		return ret;
-	bytes = sizeof(*tkns) * num_tkns;
-	if (!num_tkns || (bytes % sizeof(*desc))) {
-		ret = -EINVAL;
-		goto exit;
-	}
-
-	desc = (struct sof_probe_point_desc *)tkns;
-	ret = sof_ipc_probe_points_add(sdev,
-			desc, bytes / sizeof(*desc));
-	if (!ret)
-		ret = count;
-exit:
-	kfree(tkns);
-	return ret;
-}
-
-static const struct file_operations probe_points_fops = {
-	.open = simple_open,
-	.read = probe_points_read,
-	.write = probe_points_write,
-	.llseek = default_llseek,
-};
-
-static ssize_t probe_points_remove_write(struct file *file,
-		const char __user *from, size_t count, loff_t *ppos)
-{
-	struct snd_sof_dfsentry *dfse = file->private_data;
-	struct snd_sof_dev *sdev = dfse->sdev;
-	size_t num_tkns;
-	u32 *tkns;
-	int ret;
-
-	if (sdev->extractor_stream_tag == SOF_PROBE_INVALID_NODE_ID) {
-		dev_warn(sdev->dev, "no extractor stream running\n");
-		return -ENOENT;
-	}
-
-	ret = tokenize_input(from, count, ppos, &tkns, &num_tkns);
-	if (ret < 0)
-		return ret;
-	if (!num_tkns) {
-		ret = -EINVAL;
-		goto exit;
-	}
-
-	ret = sof_ipc_probe_points_remove(sdev, tkns, num_tkns);
-	if (!ret)
-		ret = count;
-exit:
-	kfree(tkns);
-	return ret;
-}
-
-static const struct file_operations probe_points_remove_fops = {
-	.open = simple_open,
-	.write = probe_points_remove_write,
-	.llseek = default_llseek,
-};
-
-static int snd_sof_debugfs_probe_item(struct snd_sof_dev *sdev,
-				 const char *name, mode_t mode,
-				 const struct file_operations *fops)
-{
-	struct snd_sof_dfsentry *dfse;
-
-	dfse = devm_kzalloc(sdev->dev, sizeof(*dfse), GFP_KERNEL);
-	if (!dfse)
-		return -ENOMEM;
-
-	dfse->type = SOF_DFSENTRY_TYPE_BUF;
-	dfse->sdev = sdev;
-
-	debugfs_create_file(name, mode, sdev->debugfs_root, dfse, fops);
-	/* add to dfsentry list */
-	list_add(&dfse->list, &sdev->dfsentry_list);
-
-	return 0;
-}
-#endif
-
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_IPC_FLOOD_TEST)
-#define MAX_IPC_FLOOD_DURATION_MS 1000
-#define MAX_IPC_FLOOD_COUNT 10000
-#define IPC_FLOOD_TEST_RESULT_LEN 512
-
-static int sof_debug_ipc_flood_test(struct snd_sof_dev *sdev,
-				    struct snd_sof_dfsentry *dfse,
-				    bool flood_duration_test,
-				    unsigned long ipc_duration_ms,
-				    unsigned long ipc_count)
-{
-	struct sof_ipc_cmd_hdr hdr;
-	struct sof_ipc_reply reply;
-	u64 min_response_time = U64_MAX;
-	ktime_t start, end, test_end;
-	u64 avg_response_time = 0;
-	u64 max_response_time = 0;
-	u64 ipc_response_time;
-	int i = 0;
-	int ret;
-
-	/* configure test IPC */
-	hdr.cmd = SOF_IPC_GLB_TEST_MSG | SOF_IPC_TEST_IPC_FLOOD;
-	hdr.size = sizeof(hdr);
-
-	/* set test end time for duration flood test */
-	if (flood_duration_test)
-		test_end = ktime_get_ns() + ipc_duration_ms * NSEC_PER_MSEC;
-
-	/* send test IPC's */
-	while (1) {
-		start = ktime_get();
-		ret = sof_ipc_tx_message(sdev->ipc, hdr.cmd, &hdr, hdr.size,
-					 &reply, sizeof(reply));
-		end = ktime_get();
-
-		if (ret < 0)
-			break;
-
-		/* compute min and max response times */
-		ipc_response_time = ktime_to_ns(ktime_sub(end, start));
-		min_response_time = min(min_response_time, ipc_response_time);
-		max_response_time = max(max_response_time, ipc_response_time);
-
-		/* sum up response times */
-		avg_response_time += ipc_response_time;
-		i++;
-
-		/* test complete? */
-		if (flood_duration_test) {
-			if (ktime_to_ns(end) >= test_end)
-				break;
-		} else {
-			if (i == ipc_count)
-				break;
-		}
-	}
-
-	if (ret < 0)
-		dev_err(sdev->dev,
-			"error: ipc flood test failed at %d iterations\n", i);
-
-	/* return if the first IPC fails */
-	if (!i)
-		return ret;
-
-	/* compute average response time */
-	do_div(avg_response_time, i);
-
-	/* clear previous test output */
-	memset(dfse->cache_buf, 0, IPC_FLOOD_TEST_RESULT_LEN);
-
-	if (flood_duration_test) {
-		dev_dbg(sdev->dev, "IPC Flood test duration: %lums\n",
-			ipc_duration_ms);
-		snprintf(dfse->cache_buf, IPC_FLOOD_TEST_RESULT_LEN,
-			 "IPC Flood test duration: %lums\n", ipc_duration_ms);
-	}
-
-	dev_dbg(sdev->dev,
-		"IPC Flood count: %d, Avg response time: %lluns\n",
-		i, avg_response_time);
-	dev_dbg(sdev->dev, "Max response time: %lluns\n",
-		max_response_time);
-	dev_dbg(sdev->dev, "Min response time: %lluns\n",
-		min_response_time);
-
-	/* format output string */
-	snprintf(dfse->cache_buf + strlen(dfse->cache_buf),
-		 IPC_FLOOD_TEST_RESULT_LEN - strlen(dfse->cache_buf),
-		 "IPC Flood count: %d\nAvg response time: %lluns\n",
-		 i, avg_response_time);
-
-	snprintf(dfse->cache_buf + strlen(dfse->cache_buf),
-		 IPC_FLOOD_TEST_RESULT_LEN - strlen(dfse->cache_buf),
-		 "Max response time: %lluns\nMin response time: %lluns\n",
-		 max_response_time, min_response_time);
-
-	return ret;
-}
-#endif
-
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_IPC_MSG_INJECTOR)
-static ssize_t msg_inject_read(struct file *file, char __user *buffer,
-			       size_t count, loff_t *ppos)
-{
-	struct snd_sof_dfsentry *dfse = file->private_data;
-	struct sof_ipc_reply *rhdr = dfse->msg_inject_rx;
-
-	if (!rhdr->hdr.size || !count || *ppos)
-		return 0;
-
-	if (count > rhdr->hdr.size)
-		count = rhdr->hdr.size;
-
-	if (copy_to_user(buffer, dfse->msg_inject_rx, count))
-		return -EFAULT;
-
-	*ppos += count;
-	return count;
-}
-
-static ssize_t msg_inject_write(struct file *file, const char __user *buffer,
-				size_t count, loff_t *ppos)
-{
-	struct snd_sof_dfsentry *dfse = file->private_data;
-	struct snd_sof_dev *sdev = dfse->sdev;
-	struct sof_ipc_cmd_hdr *hdr = dfse->msg_inject_tx;
-	size_t size;
-	int ret, err;
-
-	if (*ppos)
-		return 0;
-
-	size = simple_write_to_buffer(dfse->msg_inject_tx, SOF_IPC_MSG_MAX_SIZE,
-				      ppos, buffer, count);
-	if (size != count)
-		return size > 0 ? -EFAULT : size;
-
-	ret = pm_runtime_get_sync(sdev->dev);
-	if (ret < 0 && ret != -EACCES) {
-		dev_err_ratelimited(sdev->dev, "%s: DSP resume failed: %d\n",
-				    __func__, ret);
-		pm_runtime_put_noidle(sdev->dev);
-		goto out;
-	}
-
-	/* send the message */
-	memset(dfse->msg_inject_rx, 0, SOF_IPC_MSG_MAX_SIZE);
-	ret = sof_ipc_tx_message(sdev->ipc, hdr->cmd, dfse->msg_inject_tx, count,
-				 dfse->msg_inject_rx, SOF_IPC_MSG_MAX_SIZE);
-
-	pm_runtime_mark_last_busy(sdev->dev);
-	err = pm_runtime_put_autosuspend(sdev->dev);
-	if (err < 0)
-		dev_err_ratelimited(sdev->dev, "%s: DSP idle failed: %d\n",
-				    __func__, err);
-
-	/* return size if test is successful */
-	if (ret >= 0)
-		ret = size;
-
-out:
-	return ret;
-}
-
-static const struct file_operations msg_inject_fops = {
-	.open = simple_open,
-	.read = msg_inject_read,
-	.write = msg_inject_write,
-	.llseek = default_llseek,
-};
-
-static int snd_sof_debugfs_msg_inject_item(struct snd_sof_dev *sdev,
-					   const char *name, mode_t mode,
-					   const struct file_operations *fops)
-{
-	struct snd_sof_dfsentry *dfse;
-
-	dfse = devm_kzalloc(sdev->dev, sizeof(*dfse), GFP_KERNEL);
-	if (!dfse)
-		return -ENOMEM;
-
-	/* pre allocate the tx and rx buffers */
-	dfse->msg_inject_tx = devm_kzalloc(sdev->dev, SOF_IPC_MSG_MAX_SIZE, GFP_KERNEL);
-	dfse->msg_inject_rx = devm_kzalloc(sdev->dev, SOF_IPC_MSG_MAX_SIZE, GFP_KERNEL);
-	if (!dfse->msg_inject_tx || !dfse->msg_inject_rx)
-		return -ENOMEM;
-
-	dfse->type = SOF_DFSENTRY_TYPE_BUF;
-	dfse->sdev = sdev;
-
-	debugfs_create_file(name, mode, sdev->debugfs_root, dfse, fops);
-	/* add to dfsentry list */
-	list_add(&dfse->list, &sdev->dfsentry_list);
-
-	return 0;
-}
-#endif
-
-static ssize_t sof_dfsentry_write(struct file *file, const char __user *buffer,
-				  size_t count, loff_t *ppos)
-{
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_IPC_FLOOD_TEST)
-	struct snd_sof_dfsentry *dfse = file->private_data;
-	struct snd_sof_dev *sdev = dfse->sdev;
-	unsigned long ipc_duration_ms = 0;
-	bool flood_duration_test = false;
-	unsigned long ipc_count = 0;
-	struct dentry *dentry;
-	int err;
-#endif
-	size_t size;
-	char *string;
-	int ret;
-
-	string = kzalloc(count+1, GFP_KERNEL);
-	if (!string)
-		return -ENOMEM;
-
-	size = simple_write_to_buffer(string, count, ppos, buffer, count);
-	ret = size;
-
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_IPC_FLOOD_TEST)
-	/*
-	 * write op is only supported for ipc_flood_count or
-	 * ipc_flood_duration_ms debugfs entries atm.
-	 * ipc_flood_count floods the DSP with the number of IPC's specified.
-	 * ipc_duration_ms test floods the DSP for the time specified
-	 * in the debugfs entry.
-	 */
-	dentry = file->f_path.dentry;
-	if (strcmp(dentry->d_name.name, "ipc_flood_count") &&
-	    strcmp(dentry->d_name.name, "ipc_flood_duration_ms")) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	if (!strcmp(dentry->d_name.name, "ipc_flood_duration_ms"))
-		flood_duration_test = true;
-
-	/* test completion criterion */
-	if (flood_duration_test)
-		ret = kstrtoul(string, 0, &ipc_duration_ms);
-	else
-		ret = kstrtoul(string, 0, &ipc_count);
-	if (ret < 0)
-		goto out;
-
-	/* limit max duration/ipc count for flood test */
-	if (flood_duration_test) {
-		if (!ipc_duration_ms) {
-			ret = size;
-			goto out;
-		}
-
-		/* find the minimum. min() is not used to avoid warnings */
-		if (ipc_duration_ms > MAX_IPC_FLOOD_DURATION_MS)
-			ipc_duration_ms = MAX_IPC_FLOOD_DURATION_MS;
-	} else {
-		if (!ipc_count) {
-			ret = size;
-			goto out;
-		}
-
-		/* find the minimum. min() is not used to avoid warnings */
-		if (ipc_count > MAX_IPC_FLOOD_COUNT)
-			ipc_count = MAX_IPC_FLOOD_COUNT;
-	}
-
-	ret = pm_runtime_get_sync(sdev->dev);
-	if (ret < 0 && ret != -EACCES) {
-		dev_err_ratelimited(sdev->dev,
-				    "error: debugfs write failed to resume %d\n",
-				    ret);
-		pm_runtime_put_noidle(sdev->dev);
-		goto out;
-	}
-
-	/* flood test */
-	ret = sof_debug_ipc_flood_test(sdev, dfse, flood_duration_test,
-				       ipc_duration_ms, ipc_count);
-
-	pm_runtime_mark_last_busy(sdev->dev);
-	err = pm_runtime_put_autosuspend(sdev->dev);
-	if (err < 0)
-		dev_err_ratelimited(sdev->dev,
-				    "error: debugfs write failed to idle %d\n",
-				    err);
-
-	/* return size if test is successful */
-	if (ret >= 0)
-		ret = size;
-out:
-#endif
-	kfree(string);
-	return ret;
-}
-
 static ssize_t sof_dfsentry_read(struct file *file, char __user *buffer,
 				 size_t count, loff_t *ppos)
 {
@@ -544,24 +30,6 @@ static ssize_t sof_dfsentry_read(struct file *file, char __user *buffer,
 	int size;
 	u8 *buf;
 
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_IPC_FLOOD_TEST)
-	struct dentry *dentry;
-
-	dentry = file->f_path.dentry;
-	if ((!strcmp(dentry->d_name.name, "ipc_flood_count") ||
-	     !strcmp(dentry->d_name.name, "ipc_flood_duration_ms"))) {
-		if (*ppos)
-			return 0;
-
-		count = strlen(dfse->cache_buf);
-		size_ret = copy_to_user(buffer, dfse->cache_buf, count);
-		if (size_ret)
-			return -EFAULT;
-
-		*ppos += count;
-		return count;
-	}
-#endif
 	size = dfse->size;
 
 	/* validate position & count */
@@ -640,7 +108,6 @@ static const struct file_operations sof_dfs_fops = {
 	.open = simple_open,
 	.read = sof_dfsentry_read,
 	.llseek = default_llseek,
-	.write = sof_dfsentry_write,
 };
 
 /* create FS entry for debug files that can expose DSP memories, registers */
@@ -719,19 +186,6 @@ int snd_sof_debugfs_buf_item(struct snd_sof_dev *sdev,
 	dfse->size = size;
 	dfse->sdev = sdev;
 
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_IPC_FLOOD_TEST)
-	if (!strncmp(name, "ipc_flood", strlen("ipc_flood"))) {
-		/*
-		 * cache_buf is unused for SOF_DFSENTRY_TYPE_BUF debugfs entries.
-		 * So, use it to save the results of the last IPC flood test.
-		 */
-		dfse->cache_buf = devm_kzalloc(sdev->dev, IPC_FLOOD_TEST_RESULT_LEN,
-					       GFP_KERNEL);
-		if (!dfse->cache_buf)
-			return -ENOMEM;
-	}
-#endif
-
 	debugfs_create_file(name, mode, sdev->debugfs_root, dfse,
 			    &sof_dfs_fops);
 	/* add to dfsentry list */
@@ -756,15 +210,13 @@ static int memory_info_update(struct snd_sof_dev *sdev, char *buf, size_t buff_s
 	if (!reply)
 		return -ENOMEM;
 
-	ret = pm_runtime_get_sync(sdev->dev);
+	ret = pm_runtime_resume_and_get(sdev->dev);
 	if (ret < 0 && ret != -EACCES) {
-		pm_runtime_put_noidle(sdev->dev);
 		dev_err(sdev->dev, "error: enabling device failed: %d\n", ret);
 		goto error;
 	}
 
-	ret = sof_ipc_tx_message(sdev->ipc, msg.cmd, &msg, msg.size, reply, SOF_IPC_MSG_MAX_SIZE);
-	pm_runtime_mark_last_busy(sdev->dev);
+	ret = sof_ipc_tx_message(sdev->ipc, &msg, msg.size, reply, SOF_IPC_MSG_MAX_SIZE);
 	pm_runtime_put_autosuspend(sdev->dev);
 	if (ret < 0 || reply->rhdr.error < 0) {
 		ret = min(ret, reply->rhdr.error);
@@ -780,9 +232,9 @@ static int memory_info_update(struct snd_sof_dev *sdev, char *buf, size_t buff_s
 	}
 
 	for (i = 0, len = 0; i < reply->num_elems; i++) {
-		ret = snprintf(buf + len, buff_size - len, "zone %d.%d used %#8x free %#8x\n",
-			       reply->elems[i].zone, reply->elems[i].id,
-			       reply->elems[i].used, reply->elems[i].free);
+		ret = scnprintf(buf + len, buff_size - len, "zone %d.%d used %#8x free %#8x\n",
+				reply->elems[i].zone, reply->elems[i].id,
+				reply->elems[i].used, reply->elems[i].free);
 		if (ret < 0)
 			goto error;
 		len += ret;
@@ -859,13 +311,50 @@ EXPORT_SYMBOL_GPL(snd_sof_dbg_memory_info_init);
 int snd_sof_dbg_init(struct snd_sof_dev *sdev)
 {
 	const struct snd_sof_dsp_ops *ops = sof_ops(sdev);
+	struct snd_sof_pdata *plat_data = sdev->pdata;
 	const struct snd_sof_debugfs_map *map;
+	struct dentry *fw_profile;
 	int i;
 	int err;
 
 	/* use "sof" as top level debugFS dir */
 	sdev->debugfs_root = debugfs_create_dir("sof", NULL);
 
+	/* expose firmware/topology prefix/names for test purposes */
+	fw_profile = debugfs_create_dir("fw_profile", sdev->debugfs_root);
+
+	debugfs_create_str("fw_path", 0444, fw_profile,
+			   (char **)&plat_data->fw_filename_prefix);
+	/* library path is not valid for IPC3 */
+	if (plat_data->ipc_type != SOF_IPC_TYPE_3) {
+		/*
+		 * fw_lib_prefix can be NULL if the vendor/platform does not
+		 * support loadable libraries
+		 */
+		if (plat_data->fw_lib_prefix) {
+			debugfs_create_str("fw_lib_path", 0444, fw_profile,
+					   (char **)&plat_data->fw_lib_prefix);
+		} else {
+			static char *fw_lib_path;
+
+			fw_lib_path = devm_kasprintf(sdev->dev, GFP_KERNEL,
+						     "Not supported");
+			if (!fw_lib_path)
+				return -ENOMEM;
+
+			debugfs_create_str("fw_lib_path", 0444, fw_profile,
+					   (char **)&fw_lib_path);
+		}
+	}
+	debugfs_create_str("tplg_path", 0444, fw_profile,
+			   (char **)&plat_data->tplg_filename_prefix);
+	debugfs_create_str("fw_name", 0444, fw_profile,
+			   (char **)&plat_data->fw_filename);
+	debugfs_create_str("tplg_name", 0444, fw_profile,
+			   (char **)&plat_data->tplg_filename);
+	debugfs_create_u32("ipc_type", 0444, fw_profile,
+			   (u32 *)&plat_data->ipc_type);
+
 	/* init dfsentry list */
 	INIT_LIST_HEAD(&sdev->dfsentry_list);
 
@@ -881,45 +370,9 @@ int snd_sof_dbg_init(struct snd_sof_dev *sdev)
 			return err;
 	}
 
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_PROBES)
-	err = snd_sof_debugfs_probe_item(sdev, "probe_points",
-			0644, &probe_points_fops);
-	if (err < 0)
-		return err;
-	err = snd_sof_debugfs_probe_item(sdev, "probe_points_remove",
-			0200, &probe_points_remove_fops);
-	if (err < 0)
-		return err;
-#endif
-
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_IPC_FLOOD_TEST)
-	/* create read-write ipc_flood_count debugfs entry */
-	err = snd_sof_debugfs_buf_item(sdev, NULL, 0,
-				       "ipc_flood_count", 0666);
-
-	/* errors are only due to memory allocation, not debugfs */
-	if (err < 0)
-		return err;
-
-	/* create read-write ipc_flood_duration_ms debugfs entry */
-	err = snd_sof_debugfs_buf_item(sdev, NULL, 0,
-				       "ipc_flood_duration_ms", 0666);
-
-	/* errors are only due to memory allocation, not debugfs */
-	if (err < 0)
-		return err;
-#endif
-
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_IPC_MSG_INJECTOR)
-	err = snd_sof_debugfs_msg_inject_item(sdev, "ipc_msg_inject", 0644,
-					      &msg_inject_fops);
-
-	/* errors are only due to memory allocation, not debugfs */
-	if (err < 0)
-		return err;
-#endif
-
-	return 0;
+	return snd_sof_debugfs_buf_item(sdev, &sdev->fw_state,
+					sizeof(sdev->fw_state),
+					"fw_state", 0444);
 }
 EXPORT_SYMBOL_GPL(snd_sof_dbg_init);
 
@@ -934,6 +387,7 @@ static const struct soc_fw_state_info {
 	const char *name;
 } fw_state_dbg[] = {
 	{SOF_FW_BOOT_NOT_STARTED, "SOF_FW_BOOT_NOT_STARTED"},
+	{SOF_DSPLESS_MODE, "SOF_DSPLESS_MODE"},
 	{SOF_FW_BOOT_PREPARE, "SOF_FW_BOOT_PREPARE"},
 	{SOF_FW_BOOT_IN_PROGRESS, "SOF_FW_BOOT_IN_PROGRESS"},
 	{SOF_FW_BOOT_FAILED, "SOF_FW_BOOT_FAILED"},
@@ -960,7 +414,7 @@ static void snd_sof_dbg_print_fw_state(struct snd_sof_dev *sdev, const char *lev
 
 void snd_sof_dsp_dbg_dump(struct snd_sof_dev *sdev, const char *msg, u32 flags)
 {
-	char *level = flags & SOF_DBG_DUMP_OPTIONAL ? KERN_DEBUG : KERN_ERR;
+	char *level = (flags & SOF_DBG_DUMP_OPTIONAL) ? KERN_DEBUG : KERN_ERR;
 	bool print_all = sof_debug_check_flag(SOF_DBG_PRINT_ALL_DUMPS);
 
 	if (flags & SOF_DBG_DUMP_OPTIONAL && !print_all)
@@ -994,21 +448,22 @@ static void snd_sof_ipc_dump(struct snd_sof_dev *sdev)
 	}
 }
 
-void snd_sof_handle_fw_exception(struct snd_sof_dev *sdev)
+void snd_sof_handle_fw_exception(struct snd_sof_dev *sdev, const char *msg)
 {
-	if (IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_RETAIN_DSP_CONTEXT) ||
-	    sof_debug_check_flag(SOF_DBG_RETAIN_CTX)) {
+	if ((IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_RETAIN_DSP_CONTEXT) ||
+	    sof_debug_check_flag(SOF_DBG_RETAIN_CTX)) && !sdev->d3_prevented) {
 		/* should we prevent DSP entering D3 ? */
 		if (!sdev->ipc_dump_printed)
 			dev_info(sdev->dev,
-				 "preventing DSP entering D3 state to preserve context\n");
-		pm_runtime_get_noresume(sdev->dev);
+				 "Attempting to prevent DSP from entering D3 state to preserve context\n");
+
+		if (pm_runtime_get_if_in_use(sdev->dev) == 1)
+			sdev->d3_prevented = true;
 	}
 
 	/* dump vital information to the logs */
 	snd_sof_ipc_dump(sdev);
-	snd_sof_dsp_dbg_dump(sdev, "Firmware exception",
-			     SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX);
-	snd_sof_trace_notify_for_error(sdev);
+	snd_sof_dsp_dbg_dump(sdev, msg, SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX);
+	sof_fw_trace_fw_crashed(sdev);
 }
 EXPORT_SYMBOL(snd_sof_handle_fw_exception);