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Commit 0e7921e9 authored by Jin Yao's avatar Jin Yao Committed by Mark Brown
Browse files

ASoC: Intel: Use the generic IPC/mailbox APIs in Broadwell 



Use the generic IPC/mailbox APIs to replace the original processing
code for Broadwell platform.

Signed-off-by: default avatarJin Yao <yao.jin@linux.intel.com>
Acked-by: default avatarJie Yang <yang.jie@intel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 48cec59b

sound/soc/intel/haswell/sst-haswell-ipc.c

+87 −295
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ 
#include "sst-haswell-ipc.h"

#include "../common/sst-dsp.h"

#include "../common/sst-dsp-priv.h"

#include "../common/sst-ipc.h"



/* Global Message - Generic */

#define IPC_GLB_TYPE_SHIFT	24
@@ -210,23 +211,6 @@ struct sst_hsw_ipc_fw_ready { 
	u8 fw_info[IPC_MAX_MAILBOX_BYTES - 5 * sizeof(u32)];

} __attribute__((packed));



struct ipc_message {

	struct list_head list;

	u32 header;



	/* direction wrt host CPU */

	char tx_data[IPC_MAX_MAILBOX_BYTES];

	size_t tx_size;

	char rx_data[IPC_MAX_MAILBOX_BYTES];

	size_t rx_size;



	wait_queue_head_t waitq;

	bool pending;

	bool complete;

	bool wait;

	int errno;

};



struct sst_hsw_stream;

struct sst_hsw;
@@ -325,15 +309,7 @@ struct sst_hsw { 
	bool shutdown;



	/* IPC messaging */

	struct list_head tx_list;

	struct list_head rx_list;

	struct list_head empty_list;

	wait_queue_head_t wait_txq;

	struct task_struct *tx_thread;

	struct kthread_worker kworker;

	struct kthread_work kwork;

	bool pending;

	struct ipc_message *msg;

	struct sst_generic_ipc ipc;



	/* FW log stream */

	struct sst_hsw_log_stream log_stream;
@@ -456,159 +432,6 @@ static struct sst_hsw_stream *get_stream_by_id(struct sst_hsw *hsw, 
	return NULL;

}



static void ipc_shim_dbg(struct sst_hsw *hsw, const char *text)

{

	struct sst_dsp *sst = hsw->dsp;

	u32 isr, ipcd, imrx, ipcx;



	ipcx = sst_dsp_shim_read_unlocked(sst, SST_IPCX);

	isr = sst_dsp_shim_read_unlocked(sst, SST_ISRX);

	ipcd = sst_dsp_shim_read_unlocked(sst, SST_IPCD);

	imrx = sst_dsp_shim_read_unlocked(sst, SST_IMRX);



	dev_err(hsw->dev, "ipc: --%s-- ipcx 0x%8.8x isr 0x%8.8x ipcd 0x%8.8x imrx 0x%8.8x\n",

		text, ipcx, isr, ipcd, imrx);

}



/* locks held by caller */

static struct ipc_message *msg_get_empty(struct sst_hsw *hsw)

{

	struct ipc_message *msg = NULL;



	if (!list_empty(&hsw->empty_list)) {

		msg = list_first_entry(&hsw->empty_list, struct ipc_message,

			list);

		list_del(&msg->list);

	}



	return msg;

}



static void ipc_tx_msgs(struct kthread_work *work)

{

	struct sst_hsw *hsw =

		container_of(work, struct sst_hsw, kwork);

	struct ipc_message *msg;

	unsigned long flags;

	u32 ipcx;



	spin_lock_irqsave(&hsw->dsp->spinlock, flags);



	if (list_empty(&hsw->tx_list) || hsw->pending) {

		spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);

		return;

	}



	/* if the DSP is busy, we will TX messages after IRQ.

	 * also postpone if we are in the middle of procesing completion irq*/

	ipcx = sst_dsp_shim_read_unlocked(hsw->dsp, SST_IPCX);

	if (ipcx & (SST_IPCX_BUSY | SST_IPCX_DONE)) {

		spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);

		return;

	}



	msg = list_first_entry(&hsw->tx_list, struct ipc_message, list);



	list_move(&msg->list, &hsw->rx_list);



	/* send the message */

	sst_dsp_outbox_write(hsw->dsp, msg->tx_data, msg->tx_size);

	sst_dsp_ipc_msg_tx(hsw->dsp, msg->header | SST_IPCX_BUSY);



	spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);

}



/* locks held by caller */

static void tx_msg_reply_complete(struct sst_hsw *hsw, struct ipc_message *msg)

{

	msg->complete = true;

	trace_ipc_reply("completed", msg->header);



	if (!msg->wait)

		list_add_tail(&msg->list, &hsw->empty_list);

	else

		wake_up(&msg->waitq);

}



static int tx_wait_done(struct sst_hsw *hsw, struct ipc_message *msg,

	void *rx_data)

{

	unsigned long flags;

	int ret;



	/* wait for DSP completion (in all cases atm inc pending) */

	ret = wait_event_timeout(msg->waitq, msg->complete,

		msecs_to_jiffies(IPC_TIMEOUT_MSECS));



	spin_lock_irqsave(&hsw->dsp->spinlock, flags);

	if (ret == 0) {

		ipc_shim_dbg(hsw, "message timeout");



		trace_ipc_error("error message timeout for", msg->header);

		list_del(&msg->list);

		ret = -ETIMEDOUT;

	} else {



		/* copy the data returned from DSP */

		if (msg->rx_size)

			memcpy(rx_data, msg->rx_data, msg->rx_size);

		ret = msg->errno;

	}



	list_add_tail(&msg->list, &hsw->empty_list);

	spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);

	return ret;

}



static int ipc_tx_message(struct sst_hsw *hsw, u32 header, void *tx_data,

	size_t tx_bytes, void *rx_data, size_t rx_bytes, int wait)

{

	struct ipc_message *msg;

	unsigned long flags;



	spin_lock_irqsave(&hsw->dsp->spinlock, flags);



	msg = msg_get_empty(hsw);

	if (msg == NULL) {

		spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);

		return -EBUSY;

	}



	if (tx_bytes)

		memcpy(msg->tx_data, tx_data, tx_bytes);



	msg->header = header;

	msg->tx_size = tx_bytes;

	msg->rx_size = rx_bytes;

	msg->wait = wait;

	msg->errno = 0;

	msg->pending = false;

	msg->complete = false;



	list_add_tail(&msg->list, &hsw->tx_list);

	spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);



	queue_kthread_work(&hsw->kworker, &hsw->kwork);



	if (wait)

		return tx_wait_done(hsw, msg, rx_data);

	else

		return 0;

}



static inline int ipc_tx_message_wait(struct sst_hsw *hsw, u32 header,

	void *tx_data, size_t tx_bytes, void *rx_data, size_t rx_bytes)

{

	return ipc_tx_message(hsw, header, tx_data, tx_bytes, rx_data,

		rx_bytes, 1);

}



static inline int ipc_tx_message_nowait(struct sst_hsw *hsw, u32 header,

	void *tx_data, size_t tx_bytes)

{

	return ipc_tx_message(hsw, header, tx_data, tx_bytes, NULL, 0, 0);

}



static void hsw_fw_ready(struct sst_hsw *hsw, u32 header)

{

	struct sst_hsw_ipc_fw_ready fw_ready;
@@ -696,27 +519,6 @@ static void hsw_notification_work(struct work_struct *work) 
	sst_dsp_shim_update_bits(hsw->dsp, SST_IMRX, SST_IMRX_BUSY, 0);

}



static struct ipc_message *reply_find_msg(struct sst_hsw *hsw, u32 header)

{

	struct ipc_message *msg;



	/* clear reply bits & status bits */

	header &= ~(IPC_STATUS_MASK | IPC_GLB_REPLY_MASK);



	if (list_empty(&hsw->rx_list)) {

		dev_err(hsw->dev, "error: rx list empty but received 0x%x\n",

			header);

		return NULL;

	}



	list_for_each_entry(msg, &hsw->rx_list, list) {

		if (msg->header == header)

			return msg;

	}



	return NULL;

}



static void hsw_stream_update(struct sst_hsw *hsw, struct ipc_message *msg)

{

	struct sst_hsw_stream *stream;
@@ -755,7 +557,7 @@ static int hsw_process_reply(struct sst_hsw *hsw, u32 header) 


	trace_ipc_reply("processing -->", header);



	msg = reply_find_msg(hsw, header);

	msg = sst_ipc_reply_find_msg(&hsw->ipc, header);

	if (msg == NULL) {

		trace_ipc_error("error: can't find message header", header);

		return -EIO;
@@ -766,14 +568,14 @@ static int hsw_process_reply(struct sst_hsw *hsw, u32 header) 
	case IPC_GLB_REPLY_PENDING:

		trace_ipc_pending_reply("received", header);

		msg->pending = true;

		hsw->pending = true;

		hsw->ipc.pending = true;

		return 1;

	case IPC_GLB_REPLY_SUCCESS:

		if (msg->pending) {

			trace_ipc_pending_reply("completed", header);

			sst_dsp_inbox_read(hsw->dsp, msg->rx_data,

				msg->rx_size);

			hsw->pending = false;

			hsw->ipc.pending = false;

		} else {

			/* copy data from the DSP */

			sst_dsp_outbox_read(hsw->dsp, msg->rx_data,
@@ -829,7 +631,7 @@ static int hsw_process_reply(struct sst_hsw *hsw, u32 header) 


	/* wake up and return the error if we have waiters on this message ? */

	list_del(&msg->list);

	tx_msg_reply_complete(hsw, msg);

	sst_ipc_tx_msg_reply_complete(&hsw->ipc, msg);



	return 1;

}
@@ -970,6 +772,7 @@ static irqreturn_t hsw_irq_thread(int irq, void *context) 
{

	struct sst_dsp *sst = (struct sst_dsp *) context;

	struct sst_hsw *hsw = sst_dsp_get_thread_context(sst);

	struct sst_generic_ipc *ipc = &hsw->ipc;

	u32 ipcx, ipcd;

	int handled;

	unsigned long flags;
@@ -1016,7 +819,7 @@ static irqreturn_t hsw_irq_thread(int irq, void *context) 
	spin_unlock_irqrestore(&sst->spinlock, flags);



	/* continue to send any remaining messages... */

	queue_kthread_work(&hsw->kworker, &hsw->kwork);

	queue_kthread_work(&ipc->kworker, &ipc->kwork);



	return IRQ_HANDLED;

}
@@ -1026,7 +829,8 @@ int sst_hsw_fw_get_version(struct sst_hsw *hsw, 
{

	int ret;



	ret = ipc_tx_message_wait(hsw, IPC_GLB_TYPE(IPC_GLB_GET_FW_VERSION),

	ret = sst_ipc_tx_message_wait(&hsw->ipc,

		IPC_GLB_TYPE(IPC_GLB_GET_FW_VERSION),

		NULL, 0, version, sizeof(*version));

	if (ret < 0)

		dev_err(hsw->dev, "error: get version failed\n");
@@ -1090,7 +894,8 @@ int sst_hsw_stream_set_volume(struct sst_hsw *hsw, 
		req->channel = channel;

	}



	ret = ipc_tx_message_wait(hsw, header, req, sizeof(*req), NULL, 0);

	ret = sst_ipc_tx_message_wait(&hsw->ipc, header, req,

		sizeof(*req), NULL, 0);

	if (ret < 0) {

		dev_err(hsw->dev, "error: set stream volume failed\n");

		return ret;
@@ -1155,7 +960,8 @@ int sst_hsw_mixer_set_volume(struct sst_hsw *hsw, u32 stage_id, u32 channel, 
	req.curve_type = hsw->curve_type;

	req.target_volume = volume;



	ret = ipc_tx_message_wait(hsw, header, &req, sizeof(req), NULL, 0);

	ret = sst_ipc_tx_message_wait(&hsw->ipc, header, &req,

		sizeof(req), NULL, 0);

	if (ret < 0) {

		dev_err(hsw->dev, "error: set mixer volume failed\n");

		return ret;
@@ -1213,7 +1019,7 @@ int sst_hsw_stream_free(struct sst_hsw *hsw, struct sst_hsw_stream *stream) 
	stream->free_req.stream_id = stream->reply.stream_hw_id;

	header = IPC_GLB_TYPE(IPC_GLB_FREE_STREAM);



	ret = ipc_tx_message_wait(hsw, header, &stream->free_req,

	ret = sst_ipc_tx_message_wait(&hsw->ipc, header, &stream->free_req,

		sizeof(stream->free_req), NULL, 0);

	if (ret < 0) {

		dev_err(hsw->dev, "error: free stream %d failed\n",
@@ -1405,8 +1211,8 @@ int sst_hsw_stream_commit(struct sst_hsw *hsw, struct sst_hsw_stream *stream) 


	header = IPC_GLB_TYPE(IPC_GLB_ALLOCATE_STREAM);



	ret = ipc_tx_message_wait(hsw, header, str_req, sizeof(*str_req),

		reply, sizeof(*reply));

	ret = sst_ipc_tx_message_wait(&hsw->ipc, header, str_req,

		sizeof(*str_req), reply, sizeof(*reply));

	if (ret < 0) {

		dev_err(hsw->dev, "error: stream commit failed\n");

		return ret;
@@ -1455,7 +1261,8 @@ int sst_hsw_mixer_get_info(struct sst_hsw *hsw) 


	trace_ipc_request("get global mixer info", 0);



	ret = ipc_tx_message_wait(hsw, header, NULL, 0, reply, sizeof(*reply));

	ret = sst_ipc_tx_message_wait(&hsw->ipc, header, NULL, 0,

		reply, sizeof(*reply));

	if (ret < 0) {

		dev_err(hsw->dev, "error: get stream info failed\n");

		return ret;
@@ -1476,9 +1283,10 @@ static int sst_hsw_stream_operations(struct sst_hsw *hsw, int type, 
	header |= (stream_id << IPC_STR_ID_SHIFT);



	if (wait)

		return ipc_tx_message_wait(hsw, header, NULL, 0, NULL, 0);

		return sst_ipc_tx_message_wait(&hsw->ipc, header,

			NULL, 0, NULL, 0);

	else

		return ipc_tx_message_nowait(hsw, header, NULL, 0);

		return sst_ipc_tx_message_nowait(&hsw->ipc, header, NULL, 0);

}



/* Stream ALSA trigger operations */
@@ -1605,8 +1413,8 @@ int sst_hsw_device_set_config(struct sst_hsw *hsw, 


	header = IPC_GLB_TYPE(IPC_GLB_SET_DEVICE_FORMATS);



	ret = ipc_tx_message_wait(hsw, header, &config, sizeof(config),

		NULL, 0);

	ret = sst_ipc_tx_message_wait(&hsw->ipc, header, &config,

		sizeof(config), NULL, 0);

	if (ret < 0)

		dev_err(hsw->dev, "error: set device formats failed\n");
@@ -1626,8 +1434,8 @@ int sst_hsw_dx_set_state(struct sst_hsw *hsw, 


	trace_ipc_request("PM enter Dx state", state);



	ret = ipc_tx_message_wait(hsw, header, &state_, sizeof(state_),

		dx, sizeof(*dx));

	ret = sst_ipc_tx_message_wait(&hsw->ipc, header, &state_,

		sizeof(state_), dx, sizeof(*dx));

	if (ret < 0) {

		dev_err(hsw->dev, "ipc: error set dx state %d failed\n", state);

		return ret;
@@ -1770,32 +1578,6 @@ static int sst_hsw_dx_state_restore(struct sst_hsw *hsw) 
	return 0;

}



static void sst_hsw_drop_all(struct sst_hsw *hsw)

{

	struct ipc_message *msg, *tmp;

	unsigned long flags;

	int tx_drop_cnt = 0, rx_drop_cnt = 0;



	/* drop all TX and Rx messages before we stall + reset DSP */

	spin_lock_irqsave(&hsw->dsp->spinlock, flags);



	list_for_each_entry_safe(msg, tmp, &hsw->tx_list, list) {

		list_move(&msg->list, &hsw->empty_list);

		tx_drop_cnt++;

	}



	list_for_each_entry_safe(msg, tmp, &hsw->rx_list, list) {

		list_move(&msg->list, &hsw->empty_list);

		rx_drop_cnt++;

	}



	spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);



	if (tx_drop_cnt || rx_drop_cnt)

		dev_err(hsw->dev, "dropped IPC msg RX=%d, TX=%d\n",

			tx_drop_cnt, rx_drop_cnt);

}



int sst_hsw_dsp_load(struct sst_hsw *hsw)

{

	struct sst_dsp *dsp = hsw->dsp;
@@ -1875,7 +1657,7 @@ int sst_hsw_dsp_runtime_suspend(struct sst_hsw *hsw) 
	if (ret < 0)

		return ret;



	sst_hsw_drop_all(hsw);

	sst_ipc_drop_all(&hsw->ipc);



	return 0;

}
@@ -1933,23 +1715,6 @@ int sst_hsw_dsp_runtime_resume(struct sst_hsw *hsw) 
}

#endif



static int msg_empty_list_init(struct sst_hsw *hsw)

{

	int i;



	hsw->msg = kzalloc(sizeof(struct ipc_message) *

		IPC_EMPTY_LIST_SIZE, GFP_KERNEL);

	if (hsw->msg == NULL)

		return -ENOMEM;



	for (i = 0; i < IPC_EMPTY_LIST_SIZE; i++) {

		init_waitqueue_head(&hsw->msg[i].waitq);

		list_add(&hsw->msg[i].list, &hsw->empty_list);

	}



	return 0;

}



struct sst_dsp *sst_hsw_get_dsp(struct sst_hsw *hsw)

{

	return hsw->dsp;
@@ -2184,7 +1949,7 @@ int sst_hsw_module_enable(struct sst_hsw *hsw, 
		config.scratch_mem.size, config.scratch_mem.offset,

		config.map.module_entries[0].entry_point);



	ret = ipc_tx_message_wait(hsw, header,

	ret = sst_ipc_tx_message_wait(&hsw->ipc, header,

			&config, sizeof(config), NULL, 0);

	if (ret < 0)

		dev_err(dev, "ipc: module enable failed - %d\n", ret);
@@ -2223,7 +1988,7 @@ int sst_hsw_module_disable(struct sst_hsw *hsw, 
			IPC_MODULE_OPERATION(IPC_MODULE_DISABLE) |

			IPC_MODULE_ID(module_id);



	ret = ipc_tx_message_wait(hsw, header,  NULL, 0, NULL, 0);

	ret = sst_ipc_tx_message_wait(&hsw->ipc, header,  NULL, 0, NULL, 0);

	if (ret < 0)

		dev_err(dev, "module disable failed - %d\n", ret);

	else
@@ -2277,7 +2042,7 @@ int sst_hsw_module_set_param(struct sst_hsw *hsw, 
	parameter->parameter_id = parameter_id;

	parameter->data_size = param_size;



	ret = ipc_tx_message_wait(hsw, header,

	ret = sst_ipc_tx_message_wait(&hsw->ipc, header,

		parameter, transfer_parameter_size , NULL, 0);

	if (ret < 0)

		dev_err(dev, "ipc: module set parameter failed - %d\n", ret);
@@ -2296,10 +2061,48 @@ static struct sst_dsp_device hsw_dev = { 
	.ops = &haswell_ops,

};



static void hsw_tx_msg(struct sst_generic_ipc *ipc, struct ipc_message *msg)

{

	/* send the message */

	sst_dsp_outbox_write(ipc->dsp, msg->tx_data, msg->tx_size);

	sst_dsp_ipc_msg_tx(ipc->dsp, msg->header);

}



static void hsw_shim_dbg(struct sst_generic_ipc *ipc, const char *text)

{

	struct sst_dsp *sst = ipc->dsp;

	u32 isr, ipcd, imrx, ipcx;



	ipcx = sst_dsp_shim_read_unlocked(sst, SST_IPCX);

	isr = sst_dsp_shim_read_unlocked(sst, SST_ISRX);

	ipcd = sst_dsp_shim_read_unlocked(sst, SST_IPCD);

	imrx = sst_dsp_shim_read_unlocked(sst, SST_IMRX);



	dev_err(ipc->dev,

		"ipc: --%s-- ipcx 0x%8.8x isr 0x%8.8x ipcd 0x%8.8x imrx 0x%8.8x\n",

		text, ipcx, isr, ipcd, imrx);

}



static void hsw_tx_data_copy(struct ipc_message *msg, char *tx_data,

	size_t tx_size)

{

	memcpy(msg->tx_data, tx_data, tx_size);

}



static u64 hsw_reply_msg_match(u64 header, u64 *mask)

{

	/* clear reply bits & status bits */

	header &= ~(IPC_STATUS_MASK | IPC_GLB_REPLY_MASK);

	*mask = (u64)-1;



	return header;

}



int sst_hsw_dsp_init(struct device *dev, struct sst_pdata *pdata)

{

	struct sst_hsw_ipc_fw_version version;

	struct sst_hsw *hsw;

	struct sst_generic_ipc *ipc;

	int ret;



	dev_dbg(dev, "initialising Audio DSP IPC\n");
@@ -2308,39 +2111,30 @@ int sst_hsw_dsp_init(struct device *dev, struct sst_pdata *pdata) 
	if (hsw == NULL)

		return -ENOMEM;



	hsw->dev = dev;

	INIT_LIST_HEAD(&hsw->stream_list);

	INIT_LIST_HEAD(&hsw->tx_list);

	INIT_LIST_HEAD(&hsw->rx_list);

	INIT_LIST_HEAD(&hsw->empty_list);

	init_waitqueue_head(&hsw->boot_wait);

	init_waitqueue_head(&hsw->wait_txq);

	ipc = &hsw->ipc;

	ipc->dev = dev;

	ipc->ops.tx_msg = hsw_tx_msg;

	ipc->ops.shim_dbg = hsw_shim_dbg;

	ipc->ops.tx_data_copy = hsw_tx_data_copy;

	ipc->ops.reply_msg_match = hsw_reply_msg_match;



	ret = msg_empty_list_init(hsw);

	if (ret < 0)

		return -ENOMEM;



	/* start the IPC message thread */

	init_kthread_worker(&hsw->kworker);

	hsw->tx_thread = kthread_run(kthread_worker_fn,

					   &hsw->kworker, "%s",

					   dev_name(hsw->dev));

	if (IS_ERR(hsw->tx_thread)) {

		ret = PTR_ERR(hsw->tx_thread);

		dev_err(hsw->dev, "error: failed to create message TX task\n");

		goto err_free_msg;

	}

	init_kthread_work(&hsw->kwork, ipc_tx_msgs);

	ret = sst_ipc_init(ipc);

	if (ret != 0)

		goto ipc_init_err;



	INIT_LIST_HEAD(&hsw->stream_list);

	init_waitqueue_head(&hsw->boot_wait);

	hsw_dev.thread_context = hsw;



	/* init SST shim */

	hsw->dsp = sst_dsp_new(dev, &hsw_dev, pdata);

	if (hsw->dsp == NULL) {

		ret = -ENODEV;

		goto dsp_err;

		goto dsp_new_err;

	}



	ipc->dsp = hsw->dsp;



	/* allocate DMA buffer for context storage */

	hsw->dx_context = dma_alloc_coherent(hsw->dsp->dma_dev,

		SST_HSW_DX_CONTEXT_SIZE, &hsw->dx_context_paddr, GFP_KERNEL);
@@ -2404,11 +2198,10 @@ int sst_hsw_dsp_init(struct device *dev, struct sst_pdata *pdata) 
			hsw->dx_context, hsw->dx_context_paddr);

dma_err:

	sst_dsp_free(hsw->dsp);

dsp_err:

	kthread_stop(hsw->tx_thread);

err_free_msg:

	kfree(hsw->msg);



dsp_new_err:

	sst_ipc_fini(ipc);

ipc_init_err:

	kfree(hsw);

	return ret;

}

EXPORT_SYMBOL_GPL(sst_hsw_dsp_init);
@@ -2422,7 +2215,6 @@ void sst_hsw_dsp_free(struct device *dev, struct sst_pdata *pdata) 
	dma_free_coherent(hsw->dsp->dma_dev, SST_HSW_DX_CONTEXT_SIZE,

			hsw->dx_context, hsw->dx_context_paddr);

	sst_dsp_free(hsw->dsp);

	kthread_stop(hsw->tx_thread);

	kfree(hsw->msg);

	sst_ipc_fini(&hsw->ipc);

}

EXPORT_SYMBOL_GPL(sst_hsw_dsp_free);