diff --git a/include/sound/soc.h b/include/sound/soc.h
index 41cec42fb456..77d7a774f486 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1151,6 +1151,9 @@ struct snd_soc_pcm_runtime {
 	/* bit field */
 	unsigned int dev_registered:1;
 	unsigned int pop_wait:1;
+
+	/* private data - core does not touch */
+	void *private;
 };
 
 /* mixer control */
diff --git a/include/sound/sof.h b/include/sound/sof.h
new file mode 100644
index 000000000000..d5ab15b7dc30
--- /dev/null
+++ b/include/sound/sof.h
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: (GPL-2.0 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) 2018 Intel Corporation. All rights reserved.
+//
+// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
+//
+
+#ifndef __INCLUDE_SOUND_SOF_H
+#define __INCLUDE_SOUND_SOF_H
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <sound/soc-acpi.h>
+#include <uapi/sound/sof-ipc.h>
+
+struct snd_sof_dsp_ops;
+
+/* SOF probe type */
+enum sof_device_type {
+	SOF_DEVICE_PCI = 0,
+	SOF_DEVICE_APCI,
+	SOF_DEVICE_SPI
+};
+
+/*
+ * SOF Platform data.
+ */
+struct snd_sof_pdata {
+	u32 id;		/* PCI/ACPI ID */
+	const struct firmware *fw;
+	const char *drv_name;
+	const char *name;
+
+	/* parent device */
+	struct device *dev;
+	enum sof_device_type type;
+
+	/* descriptor */
+	const struct sof_dev_desc *desc;
+
+	/* machine */
+	struct platform_device *pdev_mach;
+	const struct snd_soc_acpi_mach *machine;
+};
+
+/*
+ * Descriptor used for setting up SOF platform data. This is used when
+ * ACPI/PCI data is missing or mapped differently.
+ */
+struct sof_dev_desc {
+	/* list of machines using this configuration */
+	struct snd_soc_acpi_mach *machines;
+
+	/* Platform resource indexes in BAR / ACPI resources. */
+	/* Must set to -1 if not used - add new items to end */
+	int resindex_lpe_base;
+	int resindex_pcicfg_base;
+	int resindex_imr_base;
+	int irqindex_host_ipc;
+	int resindex_dma_base;
+
+	/* DMA only valid when resindex_dma_base != -1*/
+	int dma_engine;
+	int dma_size;
+
+	/* IPC timeouts in ms */
+	int ipc_timeout;
+	int boot_timeout;
+
+	/* defaults for no codec mode */
+	const char *nocodec_fw_filename;
+	const char *nocodec_tplg_filename;
+};
+
+#endif
diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c
new file mode 100644
index 000000000000..070a8d3799a8
--- /dev/null
+++ b/sound/soc/sof/core.c
@@ -0,0 +1,381 @@
+// SPDX-License-Identifier: (GPL-2.0 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) 2018 Intel Corporation. All rights reserved.
+//
+// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
+//
+
+#include <linux/pm_runtime.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <sound/core.h>
+#include <sound/soc.h>
+#include <sound/sof.h>
+#include "sof-priv.h"
+#include "ops.h"
+
+/* SOF defaults if not provided by the platform in ms */
+#define TIMEOUT_DEFAULT_IPC	5
+#define TIMEOUT_DEFAULT_BOOT	100
+
+/*
+ * Generic object lookup APIs.
+ */
+
+struct snd_sof_pcm *snd_sof_find_spcm_dai(struct snd_sof_dev *sdev,
+					  struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_sof_pcm *spcm = NULL;
+
+	list_for_each_entry(spcm, &sdev->pcm_list, list) {
+		if (le32_to_cpu(spcm->pcm.dai_id) == rtd->dai_link->id)
+			return spcm;
+	}
+
+	return NULL;
+}
+
+struct snd_sof_pcm *snd_sof_find_spcm_name(struct snd_sof_dev *sdev,
+					   char *name)
+{
+	struct snd_sof_pcm *spcm = NULL;
+
+	list_for_each_entry(spcm, &sdev->pcm_list, list) {
+		if (strcmp(spcm->pcm.dai_name, name) == 0)
+			return spcm;
+
+		if (strcmp(spcm->pcm.caps[0].name, name) == 0)
+			return spcm;
+
+		if (strcmp(spcm->pcm.caps[1].name, name) == 0)
+			return spcm;
+	}
+
+	return NULL;
+}
+
+struct snd_sof_pcm *snd_sof_find_spcm_comp(struct snd_sof_dev *sdev,
+					   unsigned int comp_id,
+					   int *direction)
+{
+	struct snd_sof_pcm *spcm = NULL;
+
+	list_for_each_entry(spcm, &sdev->pcm_list, list) {
+		if (spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].comp_id ==
+			comp_id) {
+			*direction = SNDRV_PCM_STREAM_PLAYBACK;
+			return spcm;
+		}
+		if (spcm->stream[SNDRV_PCM_STREAM_CAPTURE].comp_id == comp_id) {
+			*direction = SNDRV_PCM_STREAM_CAPTURE;
+			return spcm;
+		}
+	}
+
+	return NULL;
+}
+
+struct snd_sof_pcm *snd_sof_find_spcm_pcm_id(struct snd_sof_dev *sdev,
+					     unsigned int pcm_id)
+{
+	struct snd_sof_pcm *spcm = NULL;
+
+	list_for_each_entry(spcm, &sdev->pcm_list, list) {
+		if (le32_to_cpu(spcm->pcm.pcm_id) == pcm_id)
+			return spcm;
+	}
+
+	return NULL;
+}
+
+struct snd_sof_widget *snd_sof_find_swidget(struct snd_sof_dev *sdev,
+					    char *name)
+{
+	struct snd_sof_widget *swidget = NULL;
+
+	list_for_each_entry(swidget, &sdev->widget_list, list) {
+		if (strcmp(name, swidget->widget->name) == 0)
+			return swidget;
+	}
+
+	return NULL;
+}
+
+struct snd_sof_dai *snd_sof_find_dai(struct snd_sof_dev *sdev,
+				     char *name)
+{
+	struct snd_sof_dai *dai = NULL;
+
+	list_for_each_entry(dai, &sdev->dai_list, list) {
+		if (!dai->name)
+			continue;
+
+		if (strcmp(name, dai->name) == 0)
+			return dai;
+	}
+
+	return NULL;
+}
+
+/*
+ * FW Panic/fault handling.
+ */
+
+struct sof_panic_msg {
+	u32 id;
+	const char *msg;
+};
+
+/* standard FW panic types */
+static const struct sof_panic_msg panic_msg[] = {
+	{SOF_IPC_PANIC_MEM, "out of memory"},
+	{SOF_IPC_PANIC_WORK, "work subsystem init failed"},
+	{SOF_IPC_PANIC_IPC, "IPC subsystem init failed"},
+	{SOF_IPC_PANIC_ARCH, "arch init failed"},
+	{SOF_IPC_PANIC_PLATFORM, "platform init failed"},
+	{SOF_IPC_PANIC_TASK, "scheduler init failed"},
+	{SOF_IPC_PANIC_EXCEPTION, "runtime exception"},
+	{SOF_IPC_PANIC_DEADLOCK, "deadlock"},
+	{SOF_IPC_PANIC_STACK, "stack overflow"},
+	{SOF_IPC_PANIC_IDLE, "can't enter idle"},
+};
+
+int snd_sof_get_status(struct snd_sof_dev *sdev, u32 panic_code,
+		       u32 tracep_code, void *oops, void *stack,
+		       size_t stack_words)
+{
+	u32 code;
+	int i;
+
+	/* is firmware dead ? */
+	if ((panic_code & SOF_IPC_PANIC_MAGIC_MASK) != SOF_IPC_PANIC_MAGIC) {
+		dev_err(sdev->dev, "error: unexpected fault 0x%8.8x trace 0x%8.8x\n",
+			panic_code, tracep_code);
+		return 0; /* no fault ? */
+	}
+
+	code = panic_code &
+		(SOF_IPC_PANIC_MAGIC_MASK | SOF_IPC_PANIC_CODE_MASK);
+
+	for (i = 0; i < ARRAY_SIZE(panic_msg); i++) {
+		if (panic_msg[i].id == code) {
+			dev_err(sdev->dev, "error: %s\n", panic_msg[i].msg);
+			dev_err(sdev->dev, "error: trace point %8.8x\n",
+				tracep_code);
+			goto out;
+		}
+	}
+
+	/* unknown error */
+	dev_err(sdev->dev, "error: unknown reason %8.8x\n", panic_code);
+	dev_err(sdev->dev, "error: trace point %8.8x\n", tracep_code);
+
+out:
+	sof_oops(sdev, oops);
+	sof_stack(sdev, oops, stack, stack_words);
+	return -EFAULT;
+}
+EXPORT_SYMBOL(snd_sof_get_status);
+
+/*
+ * Generic buffer page table creation.
+ * Take the each physical page address and drop the least significant unused
+ * bites from each (based on PAGE_SIZE). Then pack valid page address bits
+ * into compressed page table.
+ */
+
+int snd_sof_create_page_table(struct snd_sof_dev *sdev,
+			      struct snd_dma_buffer *dmab,
+			      unsigned char *page_table, size_t size)
+{
+	int i, pages;
+
+	pages = snd_sgbuf_aligned_pages(size);
+
+	dev_dbg(sdev->dev, "generating page table for %p size 0x%zx pages %d\n",
+		dmab->area, size, pages);
+
+	for (i = 0; i < pages; i++) {
+		u32 idx = (((i << 2) + i)) >> 1;
+		u32 pfn = snd_sgbuf_get_addr(dmab, i * PAGE_SIZE) >> PAGE_SHIFT;
+		u32 *pg_table;
+
+		dev_dbg(sdev->dev, "pfn i %i idx %d pfn %x\n", i, idx, pfn);
+
+		pg_table = (u32 *)(page_table + idx);
+
+		if (i & 1)
+			*pg_table |= (pfn << 4);
+		else
+			*pg_table |= pfn;
+	}
+
+	return pages;
+}
+
+/*
+ * SOF Driver enumeration.
+ */
+
+static int sof_probe(struct platform_device *pdev)
+{
+	struct snd_sof_pdata *plat_data = dev_get_platdata(&pdev->dev);
+	struct snd_sof_dev *sdev;
+	int ret;
+
+	sdev = devm_kzalloc(&pdev->dev, sizeof(*sdev), GFP_KERNEL);
+	if (!sdev)
+		return -ENOMEM;
+
+	dev_dbg(&pdev->dev, "probing SOF DSP device....\n");
+
+	/* initialize sof device */
+	sdev->dev = &pdev->dev;
+	sdev->parent = plat_data->dev;
+	if (plat_data->type == SOF_DEVICE_PCI)
+		sdev->pci = container_of(plat_data->dev, struct pci_dev, dev);
+	sdev->ops = plat_data->machine->pdata;
+
+	sdev->pdata = plat_data;
+	INIT_LIST_HEAD(&sdev->pcm_list);
+	INIT_LIST_HEAD(&sdev->kcontrol_list);
+	INIT_LIST_HEAD(&sdev->widget_list);
+	INIT_LIST_HEAD(&sdev->dai_list);
+	INIT_LIST_HEAD(&sdev->route_list);
+	dev_set_drvdata(&pdev->dev, sdev);
+	spin_lock_init(&sdev->ipc_lock);
+	spin_lock_init(&sdev->hw_lock);
+
+	/* set up platform component driver */
+	snd_sof_new_platform_drv(sdev);
+
+	/* set default timeouts if none provided */
+	if (plat_data->desc->ipc_timeout == 0)
+		sdev->ipc_timeout = TIMEOUT_DEFAULT_IPC;
+	else
+		sdev->ipc_timeout = plat_data->desc->ipc_timeout;
+	if (plat_data->desc->boot_timeout == 0)
+		sdev->boot_timeout = TIMEOUT_DEFAULT_BOOT;
+	else
+		sdev->boot_timeout = plat_data->desc->boot_timeout;
+
+	/* probe the DSP hardware */
+	ret = snd_sof_probe(sdev);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: failed to probe DSP %d\n", ret);
+		return ret;
+	}
+
+	/* register any debug/trace capabilities */
+	ret = snd_sof_dbg_init(sdev);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: failed to init DSP trace/debug %d\n",
+			ret);
+		goto dbg_err;
+	}
+
+	/* init the IPC */
+	sdev->ipc = snd_sof_ipc_init(sdev);
+	if (!sdev->ipc) {
+		dev_err(sdev->dev, "error: failed to init DSP IPC %d\n", ret);
+		goto ipc_err;
+	}
+
+	/* load the firmware */
+	ret = snd_sof_load_firmware(sdev, plat_data->fw, true);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: failed to load DSP firmware %d\n",
+			ret);
+		goto fw_load_err;
+	}
+
+	/* boot the firmware */
+	ret = snd_sof_run_firmware(sdev);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: failed to boot DSP firmware %d\n",
+			ret);
+		goto fw_run_err;
+	}
+
+	/* now register audio DSP platform driver and dai */
+	ret = snd_soc_register_component(&pdev->dev,  &sdev->plat_drv,
+					 sdev->ops->drv,
+					 sdev->ops->num_drv);
+	if (ret < 0) {
+		dev_err(sdev->dev,
+			"error: failed to register DSP DAI driver %d\n", ret);
+		goto comp_err;
+	}
+
+	/* init DMA trace */
+	ret = snd_sof_init_trace(sdev);
+	if (ret < 0) {
+		/* non fatal */
+		dev_warn(sdev->dev,
+			 "warning: failed to initialize trace %d\n", ret);
+	}
+
+	/* autosuspend sof device */
+	pm_runtime_mark_last_busy(sdev->dev);
+	pm_runtime_put_autosuspend(sdev->dev);
+
+	/* autosuspend pci/acpi/spi device */
+	pm_runtime_mark_last_busy(plat_data->dev);
+	pm_runtime_put_autosuspend(plat_data->dev);
+
+	return 0;
+
+comp_err:
+	snd_soc_unregister_component(&pdev->dev);
+	snd_sof_free_topology(sdev);
+fw_run_err:
+	snd_sof_fw_unload(sdev);
+fw_load_err:
+	snd_sof_ipc_free(sdev);
+ipc_err:
+	snd_sof_free_debug(sdev);
+dbg_err:
+	snd_sof_remove(sdev);
+
+	return ret;
+}
+
+static int sof_remove(struct platform_device *pdev)
+{
+	struct snd_sof_dev *sdev = dev_get_drvdata(&pdev->dev);
+
+	snd_soc_unregister_component(&pdev->dev);
+	snd_sof_fw_unload(sdev);
+	snd_sof_ipc_free(sdev);
+	snd_sof_free_debug(sdev);
+	snd_sof_release_trace(sdev);
+	snd_sof_remove(sdev);
+	return 0;
+}
+
+void snd_sof_shutdown(struct device *dev)
+{
+}
+EXPORT_SYMBOL(snd_sof_shutdown);
+
+static struct platform_driver sof_driver = {
+	.driver = {
+		.name = "sof-audio",
+	},
+
+	.probe = sof_probe,
+	.remove = sof_remove,
+};
+module_platform_driver(sof_driver);
+
+MODULE_AUTHOR("Liam Girdwood");
+MODULE_DESCRIPTION("Sound Open Firmware (SOF) Core");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_ALIAS("platform:sof-audio");
diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
new file mode 100644
index 000000000000..73933fec0cd2
--- /dev/null
+++ b/sound/soc/sof/sof-priv.h
@@ -0,0 +1,517 @@
+// SPDX-License-Identifier: (GPL-2.0 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) 2018 Intel Corporation. All rights reserved.
+//
+// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
+//
+
+#ifndef __SOUND_SOC_SOF_PRIV_H
+#define __SOUND_SOC_SOF_PRIV_H
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/pci.h>
+#include <linux/firmware.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <uapi/sound/sof-ipc.h>
+#include <uapi/sound/sof-fw.h>
+#include <uapi/sound/asoc.h>
+#include <sound/hdaudio.h>
+#include <sound/compress_driver.h>
+
+/* debug flags */
+#define SOF_DBG_REGS	BIT(1)
+#define SOF_DBG_MBOX	BIT(2)
+#define SOF_DBG_TEXT	BIT(3)
+#define SOF_DBG_PCI	BIT(4)
+
+/* max BARs mmaped devices can use */
+#define SND_SOF_BARS	8
+
+/* time in ms for runtime suspend delay */
+#define SND_SOF_SUSPEND_DELAY	2000
+
+/* DMA buffer size for trace */
+#define DMA_BUF_SIZE_FOR_TRACE (PAGE_SIZE * 16)
+
+/* max number of FE PCMs before BEs */
+#define SOF_BE_PCM_BASE		16
+
+#define SOF_IPC_DSP_REPLY		0
+#define SOF_IPC_HOST_REPLY		1
+
+/* convenience constructor for DAI driver streams */
+#define SOF_DAI_STREAM(sname, scmin, scmax, srates, sfmt) \
+	{.stream_name = sname, .channels_min = scmin, .channels_max = scmax, \
+	 .rates = srates, .formats = sfmt}
+
+#define SOF_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | \
+	SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_FLOAT)
+
+struct snd_sof_dev;
+struct snd_sof_ipc_msg;
+struct snd_sof_ipc;
+struct snd_sof_debugfs_map;
+struct snd_soc_tplg_ops;
+struct snd_soc_component;
+struct sof_intel_hda_dev;
+struct snd_sof_pdata;
+
+/*
+ * SOF DSP HW abstraction operations.
+ * Used to abstract DSP HW architecture and any IO busses between host CPU
+ * and DSP device(s).
+ */
+struct snd_sof_dsp_ops {
+	/* probe and remove */
+	int (*remove)(struct snd_sof_dev *sof_dev);
+	int (*probe)(struct snd_sof_dev *sof_dev);
+
+	/* DSP core boot / reset */
+	int (*run)(struct snd_sof_dev *sof_dev);
+	int (*stall)(struct snd_sof_dev *sof_dev);
+	int (*reset)(struct snd_sof_dev *sof_dev);
+
+	/* DSP PM */
+	int (*suspend)(struct snd_sof_dev *sof_dev, int state);
+	int (*resume)(struct snd_sof_dev *sof_dev);
+
+	/* DSP clocking */
+	int (*set_clk)(struct snd_sof_dev *sof_dev, u32 freq);
+
+	/* Register IO */
+	void (*write)(struct snd_sof_dev *sof_dev, void __iomem *addr,
+		      u32 value);
+	u32 (*read)(struct snd_sof_dev *sof_dev, void __iomem *addr);
+	void (*write64)(struct snd_sof_dev *sof_dev, void __iomem *addr,
+			u64 value);
+	u64 (*read64)(struct snd_sof_dev *sof_dev, void __iomem *addr);
+
+	/* memcpy IO */
+	void (*block_read)(struct snd_sof_dev *sof_dev,
+			   u32 offset, void *dest, size_t size);
+	void (*block_write)(struct snd_sof_dev *sof_dev,
+			    u32 offset, void *src, size_t size);
+
+	/* doorbell */
+	irqreturn_t (*irq_handler)(int irq, void *context);
+	irqreturn_t (*irq_thread)(int irq, void *context);
+
+	/* mailbox */
+	void (*mailbox_read)(struct snd_sof_dev *sof_dev, u32 offset,
+			     void *addr, size_t bytes);
+	void (*mailbox_write)(struct snd_sof_dev *sof_dev, u32 offset,
+			      void *addr, size_t bytes);
+
+	/* ipc */
+	int (*send_msg)(struct snd_sof_dev *sof_dev,
+			struct snd_sof_ipc_msg *msg);
+	int (*get_reply)(struct snd_sof_dev *sof_dev,
+			 struct snd_sof_ipc_msg *msg);
+	int (*is_ready)(struct snd_sof_dev *sof_dev);
+	int (*cmd_done)(struct snd_sof_dev *sof_dev, int dir);
+
+	/* debug */
+	const struct snd_sof_debugfs_map *debug_map;
+	int debug_map_count;
+	void (*dbg_dump)(struct snd_sof_dev *sof_dev, u32 flags);
+
+	/* connect pcm substream to a host stream */
+	int (*pcm_open)(struct snd_sof_dev *sdev,
+			struct snd_pcm_substream *substream);
+	/* disconnect pcm substream to a host stream */
+	int (*pcm_close)(struct snd_sof_dev *sdev,
+			 struct snd_pcm_substream *substream);
+
+	/* host stream hw params */
+	int (*pcm_hw_params)(struct snd_sof_dev *sdev,
+			     struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *params);
+
+	/* host stream trigger */
+	int (*pcm_trigger)(struct snd_sof_dev *sdev,
+			   struct snd_pcm_substream *substream, int cmd);
+
+	/* FW loading */
+	int (*load_firmware)(struct snd_sof_dev *sof_dev,
+			     const struct firmware *fw, bool first_boot);
+	int (*load_module)(struct snd_sof_dev *sof_dev,
+			   struct snd_sof_mod_hdr *hdr);
+	int (*fw_ready)(struct snd_sof_dev *sdev, u32 msg_id);
+
+	/* host DMA trace initialization */
+	int (*trace_init)(struct snd_sof_dev *sdev, u32 *stream_tag);
+	int (*trace_release)(struct snd_sof_dev *sdev);
+	int (*trace_trigger)(struct snd_sof_dev *sdev, int cmd);
+
+	/* DAI ops */
+	struct snd_soc_dai_driver *drv;
+	int num_drv;
+};
+
+/* DSP architecture specific callbacks for oops and stack dumps */
+struct sof_arch_ops {
+	void (*dsp_oops)(struct snd_sof_dev *sdev, void *oops);
+	void (*dsp_stack)(struct snd_sof_dev *sdev, void *oops,
+			  u32 *stack, u32 stack_words);
+};
+
+/* DSP device HW descriptor mapping between bus ID and ops */
+struct sof_ops_table {
+	const struct sof_dev_desc *desc;
+	struct snd_sof_dsp_ops *ops;
+	struct platform_device *(*new_data)(struct snd_sof_pdata *pdata);
+};
+
+/* FS entry for debug files that can expose DSP memories, registers */
+struct snd_sof_dfsentry_io {
+	struct dentry *dfsentry;
+	size_t size;
+	void __iomem *buf;
+	struct snd_sof_dev *sdev;
+};
+
+struct snd_sof_dfsentry_buf {
+	struct dentry *dfsentry;
+	size_t size;
+	void *buf;
+	struct snd_sof_dev *sdev;
+};
+
+/* Debug mapping for any DSP memory or registers that can used for debug */
+struct snd_sof_debugfs_map {
+	const char *name;
+	u32 bar;
+	u32 offset;
+	u32 size;
+};
+
+/* mailbox descriptor, used for host <-> DSP IPC */
+struct snd_sof_mailbox {
+	u32 offset;
+	size_t size;
+};
+
+/* IPC message descriptor for host <-> DSP IO */
+struct snd_sof_ipc_msg {
+	struct list_head list;
+
+	/* message data */
+	u32 header;
+	void *msg_data;
+	void *reply_data;
+	size_t msg_size;
+	size_t reply_size;
+
+	wait_queue_head_t waitq;
+	bool complete;
+};
+
+/* PCM stream, mapped to FW component  */
+struct snd_sof_pcm_stream {
+	u32 comp_id;
+	struct snd_dma_buffer page_table;
+	struct sof_ipc_stream_posn posn;
+	struct snd_pcm_substream *substream;
+};
+
+/* ASLA SOF PCM device */
+struct snd_sof_pcm {
+	struct snd_sof_dev *sdev;
+	struct snd_soc_tplg_pcm pcm;
+	struct snd_sof_pcm_stream stream[2];
+	u32 posn_offset[2];
+	struct mutex mutex;	/* access mutex */
+	struct list_head list;	/* list in sdev pcm list */
+	struct snd_pcm_hw_params params[2];
+	int restore_stream[2]; /* restore hw_params for paused stream */
+};
+
+/* ALSA SOF Kcontrol device */
+struct snd_sof_control {
+	struct snd_sof_dev *sdev;
+	int comp_id;
+	int num_channels;
+	u32 readback_offset; /* offset to mmaped data if used */
+	struct sof_ipc_ctrl_data *control_data;
+	u32 size;	/* cdata size */
+	enum sof_ipc_ctrl_cmd cmd;
+
+	struct mutex mutex;	/* access mutex */
+	struct list_head list;	/* list in sdev control list */
+};
+
+/* ASoC SOF DAPM widget */
+struct snd_sof_widget {
+	struct snd_sof_dev *sdev;
+	int comp_id;
+	int pipeline_id;
+	int complete;
+	int id;
+
+	struct snd_soc_dapm_widget *widget;
+	struct mutex mutex;	/* access mutex */
+	struct list_head list;	/* list in sdev widget list */
+
+	void *private;		/* core does not touch this */
+};
+
+/* ASoC SOF DAPM route */
+struct snd_sof_route {
+	struct snd_sof_dev *sdev;
+
+	struct snd_soc_dapm_route route;
+	struct list_head list;	/* list in sdev route list */
+
+	void *private;
+};
+
+/* ASoC DAI device */
+struct snd_sof_dai {
+	struct snd_sof_dev *sdev;
+	const char *name;
+
+	struct sof_ipc_comp_dai comp_dai;
+	struct sof_ipc_dai_config dai_config;
+	struct list_head list;	/* list in sdev dai list */
+};
+
+/*
+ * SOF Device Level.
+ */
+struct snd_sof_dev {
+	struct device *dev;
+	struct device *parent;
+	spinlock_t ipc_lock;	/* lock for IPC users */
+	spinlock_t hw_lock;	/* lock for HW IO access */
+	struct pci_dev *pci;
+
+	/* ASoC components */
+	struct snd_soc_component_driver plat_drv;
+
+	/* DSP firmware boot */
+	wait_queue_head_t boot_wait;
+	bool boot_complete;
+
+	/* DSP HW differentiation */
+	struct snd_sof_pdata *pdata;
+	const struct snd_sof_dsp_ops *ops;
+	struct sof_intel_hda_dev *hda;	/* for HDA based DSP HW */
+	const struct sof_arch_ops *arch_ops;
+
+	/* IPC */
+	struct snd_sof_ipc *ipc;
+	struct snd_sof_mailbox dsp_box;		/* DSP initiated IPC */
+	struct snd_sof_mailbox host_box;	/* Host initiated IPC */
+	struct snd_sof_mailbox stream_box;	/* Stream position update */
+	u64 irq_status;
+	int ipc_irq;
+	u32 next_comp_id; /* monotonic - reset during S3 */
+
+	/* memory bases for mmaped DSPs - set by dsp_init() */
+	void __iomem *bar[SND_SOF_BARS];	/* DSP base address */
+	int mmio_bar;
+	int mailbox_bar;
+	size_t dsp_oops_offset;
+
+	/* debug */
+	struct dentry *debugfs_root;
+
+	/* firmware loader */
+	int cl_bar;
+	struct snd_dma_buffer dmab;
+	struct sof_ipc_fw_ready fw_ready;
+
+	/* topology */
+	struct snd_soc_tplg_ops *tplg_ops;
+	struct list_head pcm_list;
+	struct list_head kcontrol_list;
+	struct list_head widget_list;
+	struct list_head dai_list;
+	struct list_head route_list;
+	struct snd_soc_component *component;
+
+	/* FW configuration */
+	struct sof_ipc_dma_buffer_data *info_buffer;
+	struct sof_ipc_window *info_window;
+
+	/* IPC timeouts in ms */
+	int ipc_timeout;
+	int boot_timeout;
+
+	/* Wait queue for code loading */
+	wait_queue_head_t waitq;
+	int code_loading;
+
+	/* DMA for Trace */
+	struct snd_dma_buffer dmatb;
+	struct snd_dma_buffer dmatp;
+	int dma_trace_pages;
+	wait_queue_head_t trace_sleep;
+	u32 host_offset;
+	bool dtrace_is_enabled;
+
+	void *private;			/* core does not touch this */
+};
+
+/*
+ * SOF platform private struct used as drvdata of
+ * platform dev (e.g. pci/acpi/spi...) drvdata.
+ */
+struct sof_platform_priv {
+	struct snd_sof_pdata *sof_pdata;
+	struct platform_device *pdev_pcm;
+};
+
+/*
+ * Device Level.
+ */
+void snd_sof_shutdown(struct device *dev);
+int snd_sof_runtime_suspend(struct device *dev);
+int snd_sof_runtime_resume(struct device *dev);
+int snd_sof_resume(struct device *dev);
+int snd_sof_suspend(struct device *dev);
+int snd_sof_suspend_late(struct device *dev);
+
+void snd_sof_new_platform_drv(struct snd_sof_dev *sdev);
+
+int snd_sof_create_page_table(struct snd_sof_dev *sdev,
+			      struct snd_dma_buffer *dmab,
+			      unsigned char *page_table, size_t size);
+
+/*
+ * Firmware loading.
+ */
+int snd_sof_load_firmware(struct snd_sof_dev *sdev,
+			  const struct firmware *fw, bool first_boot);
+int snd_sof_load_firmware_memcpy(struct snd_sof_dev *sdev,
+				 const struct firmware *fw, bool first_boot);
+int snd_sof_run_firmware(struct snd_sof_dev *sdev);
+int snd_sof_parse_module_memcpy(struct snd_sof_dev *sdev,
+				struct snd_sof_mod_hdr *module);
+void snd_sof_fw_unload(struct snd_sof_dev *sdev);
+int snd_sof_fw_parse_ext_data(struct snd_sof_dev *sdev, u32 offset);
+
+/*
+ * IPC low level APIs.
+ */
+struct snd_sof_ipc *snd_sof_ipc_init(struct snd_sof_dev *sdev);
+void snd_sof_ipc_free(struct snd_sof_dev *sdev);
+int snd_sof_ipc_reply(struct snd_sof_dev *sdev, u32 msg_id);
+void snd_sof_ipc_msgs_rx(struct snd_sof_dev *sdev);
+void snd_sof_ipc_msgs_tx(struct snd_sof_dev *sdev);
+int snd_sof_ipc_stream_pcm_params(struct snd_sof_dev *sdev,
+				  struct sof_ipc_pcm_params *params);
+int snd_sof_dsp_mailbox_init(struct snd_sof_dev *sdev, u32 dspbox,
+			     size_t dspbox_size, u32 hostbox,
+			     size_t hostbox_size);
+int sof_ipc_tx_message(struct snd_sof_ipc *ipc, u32 header, void *tx_data,
+		       size_t tx_bytes, void *rx_data, size_t rx_bytes);
+struct snd_sof_widget *snd_sof_find_swidget(struct snd_sof_dev *sdev,
+					    char *name);
+struct snd_sof_dai *snd_sof_find_dai(struct snd_sof_dev *sdev,
+				     char *name);
+struct snd_sof_pcm *snd_sof_find_spcm_dai(struct snd_sof_dev *sdev,
+					  struct snd_soc_pcm_runtime *rtd);
+struct snd_sof_pcm *snd_sof_find_spcm_name(struct snd_sof_dev *sdev,
+					   char *name);
+struct snd_sof_pcm *snd_sof_find_spcm_comp(struct snd_sof_dev *sdev,
+					   unsigned int comp_id,
+					   int *direction);
+struct snd_sof_pcm *snd_sof_find_spcm_pcm_id(struct snd_sof_dev *sdev,
+					     unsigned int pcm_id);
+void sof_ipc_drop_all(struct snd_sof_ipc *ipc);
+
+/*
+ * Stream IPC
+ */
+int snd_sof_ipc_stream_posn(struct snd_sof_dev *sdev,
+			    struct snd_sof_pcm *spcm, int direction,
+			    struct sof_ipc_stream_posn *posn);
+
+/*
+ * Mixer IPC
+ */
+int snd_sof_ipc_set_comp_data(struct snd_sof_ipc *ipc,
+			      struct snd_sof_control *scontrol, u32 ipc_cmd,
+			      enum sof_ipc_ctrl_type ctrl_type,
+			      enum sof_ipc_ctrl_cmd ctrl_cmd);
+int snd_sof_ipc_get_comp_data(struct snd_sof_ipc *ipc,
+			      struct snd_sof_control *scontrol, u32 ipc_cmd,
+			      enum sof_ipc_ctrl_type ctrl_type,
+			      enum sof_ipc_ctrl_cmd ctrl_cmd);
+
+/*
+ * Topology.
+ */
+int snd_sof_init_topology(struct snd_sof_dev *sdev,
+			  struct snd_soc_tplg_ops *ops);
+int snd_sof_load_topology(struct snd_sof_dev *sdev, const char *file);
+void snd_sof_free_topology(struct snd_sof_dev *sdev);
+int snd_sof_complete_pipeline(struct snd_sof_dev *sdev,
+			      struct snd_sof_widget *swidget);
+
+/*
+ * Trace/debug
+ */
+int snd_sof_init_trace(struct snd_sof_dev *sdev);
+void snd_sof_release_trace(struct snd_sof_dev *sdev);
+int snd_sof_dbg_init(struct snd_sof_dev *sdev);
+void snd_sof_free_debug(struct snd_sof_dev *sdev);
+int snd_sof_debugfs_create_item(struct snd_sof_dev *sdev,
+				void __iomem *base, size_t size,
+				const char *name);
+int snd_sof_trace_update_pos(struct snd_sof_dev *sdev,
+			     struct sof_ipc_dma_trace_posn *posn);
+void snd_sof_trace_notify_for_error(struct snd_sof_dev *sdev);
+int snd_sof_get_status(struct snd_sof_dev *sdev, u32 panic_code,
+		       u32 tracep_code, void *oops, void *stack,
+		       size_t stack_size);
+int snd_sof_init_trace_ipc(struct snd_sof_dev *sdev);
+
+/*
+ * Platform specific ops.
+ */
+extern struct snd_compr_ops sof_compressed_ops;
+
+/*
+ * Kcontrols.
+ */
+
+int snd_sof_volume_get(struct snd_kcontrol *kcontrol,
+		       struct snd_ctl_elem_value *ucontrol);
+int snd_sof_volume_put(struct snd_kcontrol *kcontrol,
+		       struct snd_ctl_elem_value *ucontrol);
+int snd_sof_enum_get(struct snd_kcontrol *kcontrol,
+		     struct snd_ctl_elem_value *ucontrol);
+int snd_sof_enum_put(struct snd_kcontrol *kcontrol,
+		     struct snd_ctl_elem_value *ucontrol);
+int snd_sof_bytes_get(struct snd_kcontrol *kcontrol,
+		      struct snd_ctl_elem_value *ucontrol);
+int snd_sof_bytes_put(struct snd_kcontrol *kcontrol,
+		      struct snd_ctl_elem_value *ucontrol);
+
+/*
+ * DSP Architectures.
+ */
+static inline void sof_stack(struct snd_sof_dev *sdev, void *oops, u32 *stack,
+			     u32 stack_words)
+{
+	if (sdev->arch_ops->dsp_stack)
+		sdev->arch_ops->dsp_stack(sdev, oops, stack, stack_words);
+}
+
+static inline void sof_oops(struct snd_sof_dev *sdev, void *oops)
+{
+	if (sdev->arch_ops->dsp_oops)
+		sdev->arch_ops->dsp_oops(sdev, oops);
+}
+
+extern const struct sof_arch_ops sof_xtensa_arch_ops;
+#endif
