Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
new file mode 100644
index 0000000..06e8467
--- /dev/null
+++ b/sound/soc/sof/intel/hda.c
@@ -0,0 +1,731 @@
+// 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.
+//
+// Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
+//	    Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
+//	    Rander Wang <rander.wang@intel.com>
+//          Keyon Jie <yang.jie@linux.intel.com>
+//
+
+/*
+ * Hardware interface for generic Intel audio DSP HDA IP
+ */
+
+#include <sound/hdaudio_ext.h>
+#include <sound/hda_register.h>
+
+#include <linux/module.h>
+#include <sound/intel-nhlt.h>
+#include <sound/sof.h>
+#include <sound/sof/xtensa.h>
+#include "../ops.h"
+#include "hda.h"
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
+#include <sound/soc-acpi-intel-match.h>
+#endif
+
+/* platform specific devices */
+#include "shim.h"
+
+#define IS_CFL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa348)
+#define IS_CNL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x9dc8)
+
+#define EXCEPT_MAX_HDR_SIZE	0x400
+
+/*
+ * Debug
+ */
+
+struct hda_dsp_msg_code {
+	u32 code;
+	const char *msg;
+};
+
+static bool hda_use_msi = IS_ENABLED(CONFIG_PCI);
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG)
+module_param_named(use_msi, hda_use_msi, bool, 0444);
+MODULE_PARM_DESC(use_msi, "SOF HDA use PCI MSI mode");
+#endif
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
+static int hda_dmic_num = -1;
+module_param_named(dmic_num, hda_dmic_num, int, 0444);
+MODULE_PARM_DESC(dmic_num, "SOF HDA DMIC number");
+#endif
+
+static const struct hda_dsp_msg_code hda_dsp_rom_msg[] = {
+	{HDA_DSP_ROM_FW_MANIFEST_LOADED, "status: manifest loaded"},
+	{HDA_DSP_ROM_FW_FW_LOADED, "status: fw loaded"},
+	{HDA_DSP_ROM_FW_ENTERED, "status: fw entered"},
+	{HDA_DSP_ROM_CSE_ERROR, "error: cse error"},
+	{HDA_DSP_ROM_CSE_WRONG_RESPONSE, "error: cse wrong response"},
+	{HDA_DSP_ROM_IMR_TO_SMALL, "error: IMR too small"},
+	{HDA_DSP_ROM_BASE_FW_NOT_FOUND, "error: base fw not found"},
+	{HDA_DSP_ROM_CSE_VALIDATION_FAILED, "error: signature verification failed"},
+	{HDA_DSP_ROM_IPC_FATAL_ERROR, "error: ipc fatal error"},
+	{HDA_DSP_ROM_L2_CACHE_ERROR, "error: L2 cache error"},
+	{HDA_DSP_ROM_LOAD_OFFSET_TO_SMALL, "error: load offset too small"},
+	{HDA_DSP_ROM_API_PTR_INVALID, "error: API ptr invalid"},
+	{HDA_DSP_ROM_BASEFW_INCOMPAT, "error: base fw incompatible"},
+	{HDA_DSP_ROM_UNHANDLED_INTERRUPT, "error: unhandled interrupt"},
+	{HDA_DSP_ROM_MEMORY_HOLE_ECC, "error: ECC memory hole"},
+	{HDA_DSP_ROM_KERNEL_EXCEPTION, "error: kernel exception"},
+	{HDA_DSP_ROM_USER_EXCEPTION, "error: user exception"},
+	{HDA_DSP_ROM_UNEXPECTED_RESET, "error: unexpected reset"},
+	{HDA_DSP_ROM_NULL_FW_ENTRY,	"error: null FW entry point"},
+};
+
+static void hda_dsp_get_status_skl(struct snd_sof_dev *sdev)
+{
+	u32 status;
+	int i;
+
+	status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
+				  HDA_ADSP_FW_STATUS_SKL);
+
+	for (i = 0; i < ARRAY_SIZE(hda_dsp_rom_msg); i++) {
+		if (status == hda_dsp_rom_msg[i].code) {
+			dev_err(sdev->dev, "%s - code %8.8x\n",
+				hda_dsp_rom_msg[i].msg, status);
+			return;
+		}
+	}
+
+	/* not for us, must be generic sof message */
+	dev_dbg(sdev->dev, "unknown ROM status value %8.8x\n", status);
+}
+
+static void hda_dsp_get_status(struct snd_sof_dev *sdev)
+{
+	u32 status;
+	int i;
+
+	status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
+				  HDA_DSP_SRAM_REG_ROM_STATUS);
+
+	for (i = 0; i < ARRAY_SIZE(hda_dsp_rom_msg); i++) {
+		if (status == hda_dsp_rom_msg[i].code) {
+			dev_err(sdev->dev, "%s - code %8.8x\n",
+				hda_dsp_rom_msg[i].msg, status);
+			return;
+		}
+	}
+
+	/* not for us, must be generic sof message */
+	dev_dbg(sdev->dev, "unknown ROM status value %8.8x\n", status);
+}
+
+static void hda_dsp_get_registers(struct snd_sof_dev *sdev,
+				  struct sof_ipc_dsp_oops_xtensa *xoops,
+				  struct sof_ipc_panic_info *panic_info,
+				  u32 *stack, size_t stack_words)
+{
+	u32 offset = sdev->dsp_oops_offset;
+
+	/* first read registers */
+	sof_mailbox_read(sdev, offset, xoops, sizeof(*xoops));
+
+	/* note: variable AR register array is not read */
+
+	/* then get panic info */
+	if (xoops->arch_hdr.totalsize > EXCEPT_MAX_HDR_SIZE) {
+		dev_err(sdev->dev, "invalid header size 0x%x. FW oops is bogus\n",
+			xoops->arch_hdr.totalsize);
+		return;
+	}
+	offset += xoops->arch_hdr.totalsize;
+	sof_block_read(sdev, sdev->mmio_bar, offset,
+		       panic_info, sizeof(*panic_info));
+
+	/* then get the stack */
+	offset += sizeof(*panic_info);
+	sof_block_read(sdev, sdev->mmio_bar, offset, stack,
+		       stack_words * sizeof(u32));
+}
+
+void hda_dsp_dump_skl(struct snd_sof_dev *sdev, u32 flags)
+{
+	struct sof_ipc_dsp_oops_xtensa xoops;
+	struct sof_ipc_panic_info panic_info;
+	u32 stack[HDA_DSP_STACK_DUMP_SIZE];
+	u32 status, panic;
+
+	/* try APL specific status message types first */
+	hda_dsp_get_status_skl(sdev);
+
+	/* now try generic SOF status messages */
+	status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
+				  HDA_ADSP_ERROR_CODE_SKL);
+
+	/*TODO: Check: there is no define in spec, but it is used in the code*/
+	panic = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
+				 HDA_ADSP_ERROR_CODE_SKL + 0x4);
+
+	if (sdev->boot_complete) {
+		hda_dsp_get_registers(sdev, &xoops, &panic_info, stack,
+				      HDA_DSP_STACK_DUMP_SIZE);
+		snd_sof_get_status(sdev, status, panic, &xoops, &panic_info,
+				   stack, HDA_DSP_STACK_DUMP_SIZE);
+	} else {
+		dev_err(sdev->dev, "error: status = 0x%8.8x panic = 0x%8.8x\n",
+			status, panic);
+		hda_dsp_get_status_skl(sdev);
+	}
+}
+
+void hda_dsp_dump(struct snd_sof_dev *sdev, u32 flags)
+{
+	struct sof_ipc_dsp_oops_xtensa xoops;
+	struct sof_ipc_panic_info panic_info;
+	u32 stack[HDA_DSP_STACK_DUMP_SIZE];
+	u32 status, panic;
+
+	/* try APL specific status message types first */
+	hda_dsp_get_status(sdev);
+
+	/* now try generic SOF status messages */
+	status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
+				  HDA_DSP_SRAM_REG_FW_STATUS);
+	panic = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_SRAM_REG_FW_TRACEP);
+
+	if (sdev->boot_complete) {
+		hda_dsp_get_registers(sdev, &xoops, &panic_info, stack,
+				      HDA_DSP_STACK_DUMP_SIZE);
+		snd_sof_get_status(sdev, status, panic, &xoops, &panic_info,
+				   stack, HDA_DSP_STACK_DUMP_SIZE);
+	} else {
+		dev_err(sdev->dev, "error: status = 0x%8.8x panic = 0x%8.8x\n",
+			status, panic);
+		hda_dsp_get_status(sdev);
+	}
+}
+
+void hda_ipc_irq_dump(struct snd_sof_dev *sdev)
+{
+	struct hdac_bus *bus = sof_to_bus(sdev);
+	u32 adspis;
+	u32 intsts;
+	u32 intctl;
+	u32 ppsts;
+	u8 rirbsts;
+
+	/* read key IRQ stats and config registers */
+	adspis = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPIS);
+	intsts = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTSTS);
+	intctl = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL);
+	ppsts = snd_sof_dsp_read(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPSTS);
+	rirbsts = snd_hdac_chip_readb(bus, RIRBSTS);
+
+	dev_err(sdev->dev,
+		"error: hda irq intsts 0x%8.8x intlctl 0x%8.8x rirb %2.2x\n",
+		intsts, intctl, rirbsts);
+	dev_err(sdev->dev,
+		"error: dsp irq ppsts 0x%8.8x adspis 0x%8.8x\n",
+		ppsts, adspis);
+}
+
+void hda_ipc_dump(struct snd_sof_dev *sdev)
+{
+	u32 hipcie;
+	u32 hipct;
+	u32 hipcctl;
+
+	hda_ipc_irq_dump(sdev);
+
+	/* read IPC status */
+	hipcie = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCIE);
+	hipct = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCT);
+	hipcctl = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCCTL);
+
+	/* dump the IPC regs */
+	/* TODO: parse the raw msg */
+	dev_err(sdev->dev,
+		"error: host status 0x%8.8x dsp status 0x%8.8x mask 0x%8.8x\n",
+		hipcie, hipct, hipcctl);
+}
+
+static int hda_init(struct snd_sof_dev *sdev)
+{
+	struct hda_bus *hbus;
+	struct hdac_bus *bus;
+	struct pci_dev *pci = to_pci_dev(sdev->dev);
+	int ret;
+
+	hbus = sof_to_hbus(sdev);
+	bus = sof_to_bus(sdev);
+
+	/* HDA bus init */
+	sof_hda_bus_init(bus, &pci->dev);
+
+	/* Workaround for a communication error on CFL (bko#199007) and CNL */
+	if (IS_CFL(pci) || IS_CNL(pci))
+		bus->polling_mode = 1;
+
+	bus->use_posbuf = 1;
+	bus->bdl_pos_adj = 0;
+
+	mutex_init(&hbus->prepare_mutex);
+	hbus->pci = pci;
+	hbus->mixer_assigned = -1;
+	hbus->modelname = "sofbus";
+
+	/* initialise hdac bus */
+	bus->addr = pci_resource_start(pci, 0);
+#if IS_ENABLED(CONFIG_PCI)
+	bus->remap_addr = pci_ioremap_bar(pci, 0);
+#endif
+	if (!bus->remap_addr) {
+		dev_err(bus->dev, "error: ioremap error\n");
+		return -ENXIO;
+	}
+
+	/* HDA base */
+	sdev->bar[HDA_DSP_HDA_BAR] = bus->remap_addr;
+
+	/* get controller capabilities */
+	ret = hda_dsp_ctrl_get_caps(sdev);
+	if (ret < 0)
+		dev_err(sdev->dev, "error: get caps error\n");
+
+	return ret;
+}
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
+
+static int check_nhlt_dmic(struct snd_sof_dev *sdev)
+{
+	struct nhlt_acpi_table *nhlt;
+	int dmic_num;
+
+	nhlt = intel_nhlt_init(sdev->dev);
+	if (nhlt) {
+		dmic_num = intel_nhlt_get_dmic_geo(sdev->dev, nhlt);
+		intel_nhlt_free(nhlt);
+		if (dmic_num == 2 || dmic_num == 4)
+			return dmic_num;
+	}
+
+	return 0;
+}
+
+static const char *fixup_tplg_name(struct snd_sof_dev *sdev,
+				   const char *sof_tplg_filename,
+				   const char *idisp_str,
+				   const char *dmic_str)
+{
+	const char *tplg_filename = NULL;
+	char *filename;
+	char *split_ext;
+
+	filename = devm_kstrdup(sdev->dev, sof_tplg_filename, GFP_KERNEL);
+	if (!filename)
+		return NULL;
+
+	/* this assumes a .tplg extension */
+	split_ext = strsep(&filename, ".");
+	if (split_ext) {
+		tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL,
+					       "%s%s%s.tplg",
+					       split_ext, idisp_str, dmic_str);
+		if (!tplg_filename)
+			return NULL;
+	}
+	return tplg_filename;
+}
+
+#endif
+
+static int hda_init_caps(struct snd_sof_dev *sdev)
+{
+	struct hdac_bus *bus = sof_to_bus(sdev);
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
+	struct hdac_ext_link *hlink;
+	struct snd_soc_acpi_mach_params *mach_params;
+	struct snd_soc_acpi_mach *hda_mach;
+	struct snd_sof_pdata *pdata = sdev->pdata;
+	struct snd_soc_acpi_mach *mach;
+	const char *tplg_filename;
+	const char *idisp_str;
+	const char *dmic_str;
+	int dmic_num;
+	int codec_num = 0;
+	int i;
+#endif
+	int ret = 0;
+
+	device_disable_async_suspend(bus->dev);
+
+	/* check if dsp is there */
+	if (bus->ppcap)
+		dev_dbg(sdev->dev, "PP capability, will probe DSP later.\n");
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
+	/* init i915 and HDMI codecs */
+	ret = hda_codec_i915_init(sdev);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: init i915 and HDMI codec failed\n");
+		return ret;
+	}
+#endif
+
+	/* Init HDA controller after i915 init */
+	ret = hda_dsp_ctrl_init_chip(sdev, true);
+	if (ret < 0) {
+		dev_err(bus->dev, "error: init chip failed with ret: %d\n",
+			ret);
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
+		hda_codec_i915_exit(sdev);
+#endif
+		return ret;
+	}
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
+	if (bus->mlcap)
+		snd_hdac_ext_bus_get_ml_capabilities(bus);
+
+	/* codec detection */
+	if (!bus->codec_mask) {
+		dev_info(bus->dev, "no hda codecs found!\n");
+	} else {
+		dev_info(bus->dev, "hda codecs found, mask %lx\n",
+			 bus->codec_mask);
+
+		for (i = 0; i < HDA_MAX_CODECS; i++) {
+			if (bus->codec_mask & (1 << i))
+				codec_num++;
+		}
+
+		/*
+		 * If no machine driver is found, then:
+		 *
+		 * hda machine driver is used if :
+		 * 1. there is one HDMI codec and one external HDAudio codec
+		 * 2. only HDMI codec
+		 */
+		if (!pdata->machine && codec_num <= 2 &&
+		    HDA_IDISP_CODEC(bus->codec_mask)) {
+			hda_mach = snd_soc_acpi_intel_hda_machines;
+			pdata->machine = hda_mach;
+
+			/* topology: use the info from hda_machines */
+			pdata->tplg_filename =
+				hda_mach->sof_tplg_filename;
+
+			/* firmware: pick the first in machine list */
+			mach = pdata->desc->machines;
+			pdata->fw_filename = mach->sof_fw_filename;
+
+			dev_info(bus->dev, "using HDA machine driver %s now\n",
+				 hda_mach->drv_name);
+
+			if (codec_num == 1)
+				idisp_str = "-idisp";
+			else
+				idisp_str = "";
+
+			/* first check NHLT for DMICs */
+			dmic_num = check_nhlt_dmic(sdev);
+
+			/* allow for module parameter override */
+			if (hda_dmic_num != -1)
+				dmic_num = hda_dmic_num;
+
+			switch (dmic_num) {
+			case 2:
+				dmic_str = "-2ch";
+				break;
+			case 4:
+				dmic_str = "-4ch";
+				break;
+			default:
+				dmic_num = 0;
+				dmic_str = "";
+				break;
+			}
+
+			tplg_filename = pdata->tplg_filename;
+			tplg_filename = fixup_tplg_name(sdev, tplg_filename,
+							idisp_str, dmic_str);
+			if (!tplg_filename) {
+				hda_codec_i915_exit(sdev);
+				return ret;
+			}
+			pdata->tplg_filename = tplg_filename;
+		}
+	}
+
+	/* used by hda machine driver to create dai links */
+	if (pdata->machine) {
+		mach_params = (struct snd_soc_acpi_mach_params *)
+			&pdata->machine->mach_params;
+		mach_params->codec_mask = bus->codec_mask;
+		mach_params->platform = dev_name(sdev->dev);
+	}
+
+	/* create codec instances */
+	hda_codec_probe_bus(sdev);
+
+	hda_codec_i915_put(sdev);
+
+	/*
+	 * we are done probing so decrement link counts
+	 */
+	list_for_each_entry(hlink, &bus->hlink_list, list)
+		snd_hdac_ext_bus_link_put(bus, hlink);
+#endif
+	return 0;
+}
+
+static const struct sof_intel_dsp_desc
+	*get_chip_info(struct snd_sof_pdata *pdata)
+{
+	const struct sof_dev_desc *desc = pdata->desc;
+	const struct sof_intel_dsp_desc *chip_info;
+
+	chip_info = desc->chip_info;
+
+	return chip_info;
+}
+
+int hda_dsp_probe(struct snd_sof_dev *sdev)
+{
+	struct pci_dev *pci = to_pci_dev(sdev->dev);
+	struct sof_intel_hda_dev *hdev;
+	struct hdac_bus *bus;
+	const struct sof_intel_dsp_desc *chip;
+	int ret = 0;
+
+	/*
+	 * detect DSP by checking class/subclass/prog-id information
+	 * class=04 subclass 03 prog-if 00: no DSP, legacy driver is required
+	 * class=04 subclass 01 prog-if 00: DSP is present
+	 *   (and may be required e.g. for DMIC or SSP support)
+	 * class=04 subclass 03 prog-if 80: either of DSP or legacy mode works
+	 */
+	if (pci->class == 0x040300) {
+		dev_err(sdev->dev, "error: the DSP is not enabled on this platform, aborting probe\n");
+		return -ENODEV;
+	} else if (pci->class != 0x040100 && pci->class != 0x040380) {
+		dev_err(sdev->dev, "error: unknown PCI class/subclass/prog-if 0x%06x found, aborting probe\n", pci->class);
+		return -ENODEV;
+	}
+	dev_info(sdev->dev, "DSP detected with PCI class/subclass/prog-if 0x%06x\n", pci->class);
+
+	chip = get_chip_info(sdev->pdata);
+	if (!chip) {
+		dev_err(sdev->dev, "error: no such device supported, chip id:%x\n",
+			pci->device);
+		ret = -EIO;
+		goto err;
+	}
+
+	hdev = devm_kzalloc(sdev->dev, sizeof(*hdev), GFP_KERNEL);
+	if (!hdev)
+		return -ENOMEM;
+	sdev->pdata->hw_pdata = hdev;
+	hdev->desc = chip;
+
+	hdev->dmic_dev = platform_device_register_data(sdev->dev, "dmic-codec",
+						       PLATFORM_DEVID_NONE,
+						       NULL, 0);
+	if (IS_ERR(hdev->dmic_dev)) {
+		dev_err(sdev->dev, "error: failed to create DMIC device\n");
+		return PTR_ERR(hdev->dmic_dev);
+	}
+
+	/*
+	 * use position update IPC if either it is forced
+	 * or we don't have other choice
+	 */
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_FORCE_IPC_POSITION)
+	hdev->no_ipc_position = 0;
+#else
+	hdev->no_ipc_position = sof_ops(sdev)->pcm_pointer ? 1 : 0;
+#endif
+
+	/* set up HDA base */
+	bus = sof_to_bus(sdev);
+	ret = hda_init(sdev);
+	if (ret < 0)
+		goto hdac_bus_unmap;
+
+	/* DSP base */
+#if IS_ENABLED(CONFIG_PCI)
+	sdev->bar[HDA_DSP_BAR] = pci_ioremap_bar(pci, HDA_DSP_BAR);
+#endif
+	if (!sdev->bar[HDA_DSP_BAR]) {
+		dev_err(sdev->dev, "error: ioremap error\n");
+		ret = -ENXIO;
+		goto hdac_bus_unmap;
+	}
+
+	sdev->mmio_bar = HDA_DSP_BAR;
+	sdev->mailbox_bar = HDA_DSP_BAR;
+
+	/* allow 64bit DMA address if supported by H/W */
+	if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(64))) {
+		dev_dbg(sdev->dev, "DMA mask is 64 bit\n");
+		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(64));
+	} else {
+		dev_dbg(sdev->dev, "DMA mask is 32 bit\n");
+		dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
+		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
+	}
+
+	/* init streams */
+	ret = hda_dsp_stream_init(sdev);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: failed to init streams\n");
+		/*
+		 * not all errors are due to memory issues, but trying
+		 * to free everything does not harm
+		 */
+		goto free_streams;
+	}
+
+	/*
+	 * register our IRQ
+	 * let's try to enable msi firstly
+	 * if it fails, use legacy interrupt mode
+	 * TODO: support msi multiple vectors
+	 */
+	if (hda_use_msi && pci_alloc_irq_vectors(pci, 1, 1, PCI_IRQ_MSI) > 0) {
+		dev_info(sdev->dev, "use msi interrupt mode\n");
+		hdev->irq = pci_irq_vector(pci, 0);
+		/* ipc irq number is the same of hda irq */
+		sdev->ipc_irq = hdev->irq;
+		/* initialised to "false" by kzalloc() */
+		sdev->msi_enabled = true;
+	}
+
+	if (!sdev->msi_enabled) {
+		dev_info(sdev->dev, "use legacy interrupt mode\n");
+		/*
+		 * in IO-APIC mode, hda->irq and ipc_irq are using the same
+		 * irq number of pci->irq
+		 */
+		hdev->irq = pci->irq;
+		sdev->ipc_irq = pci->irq;
+	}
+
+	dev_dbg(sdev->dev, "using HDA IRQ %d\n", hdev->irq);
+	ret = request_threaded_irq(hdev->irq, hda_dsp_stream_interrupt,
+				   hda_dsp_stream_threaded_handler,
+				   IRQF_SHARED, "AudioHDA", bus);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: failed to register HDA IRQ %d\n",
+			hdev->irq);
+		goto free_irq_vector;
+	}
+
+	dev_dbg(sdev->dev, "using IPC IRQ %d\n", sdev->ipc_irq);
+	ret = request_threaded_irq(sdev->ipc_irq, hda_dsp_ipc_irq_handler,
+				   sof_ops(sdev)->irq_thread, IRQF_SHARED,
+				   "AudioDSP", sdev);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: failed to register IPC IRQ %d\n",
+			sdev->ipc_irq);
+		goto free_hda_irq;
+	}
+
+	pci_set_master(pci);
+	synchronize_irq(pci->irq);
+
+	/*
+	 * clear TCSEL to clear playback on some HD Audio
+	 * codecs. PCI TCSEL is defined in the Intel manuals.
+	 */
+	snd_sof_pci_update_bits(sdev, PCI_TCSEL, 0x07, 0);
+
+	/* init HDA capabilities */
+	ret = hda_init_caps(sdev);
+	if (ret < 0)
+		goto free_ipc_irq;
+
+	/* enable ppcap interrupt */
+	hda_dsp_ctrl_ppcap_enable(sdev, true);
+	hda_dsp_ctrl_ppcap_int_enable(sdev, true);
+
+	/* initialize waitq for code loading */
+	init_waitqueue_head(&sdev->waitq);
+
+	/* set default mailbox offset for FW ready message */
+	sdev->dsp_box.offset = HDA_DSP_MBOX_UPLINK_OFFSET;
+
+	return 0;
+
+free_ipc_irq:
+	free_irq(sdev->ipc_irq, sdev);
+free_hda_irq:
+	free_irq(hdev->irq, bus);
+free_irq_vector:
+	if (sdev->msi_enabled)
+		pci_free_irq_vectors(pci);
+free_streams:
+	hda_dsp_stream_free(sdev);
+/* dsp_unmap: not currently used */
+	iounmap(sdev->bar[HDA_DSP_BAR]);
+hdac_bus_unmap:
+	iounmap(bus->remap_addr);
+err:
+	return ret;
+}
+
+int hda_dsp_remove(struct snd_sof_dev *sdev)
+{
+	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
+	struct hdac_bus *bus = sof_to_bus(sdev);
+	struct pci_dev *pci = to_pci_dev(sdev->dev);
+	const struct sof_intel_dsp_desc *chip = hda->desc;
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
+	/* codec removal, invoke bus_device_remove */
+	snd_hdac_ext_bus_device_remove(bus);
+#endif
+
+	if (!IS_ERR_OR_NULL(hda->dmic_dev))
+		platform_device_unregister(hda->dmic_dev);
+
+	/* disable DSP IRQ */
+	snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL,
+				SOF_HDA_PPCTL_PIE, 0);
+
+	/* disable CIE and GIE interrupts */
+	snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL,
+				SOF_HDA_INT_CTRL_EN | SOF_HDA_INT_GLOBAL_EN, 0);
+
+	/* disable cores */
+	if (chip)
+		hda_dsp_core_reset_power_down(sdev, chip->cores_mask);
+
+	/* disable DSP */
+	snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL,
+				SOF_HDA_PPCTL_GPROCEN, 0);
+
+	free_irq(sdev->ipc_irq, sdev);
+	free_irq(hda->irq, bus);
+	if (sdev->msi_enabled)
+		pci_free_irq_vectors(pci);
+
+	hda_dsp_stream_free(sdev);
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
+	snd_hdac_link_free_all(bus);
+#endif
+
+	iounmap(sdev->bar[HDA_DSP_BAR]);
+	iounmap(bus->remap_addr);
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
+	snd_hdac_ext_bus_exit(bus);
+#endif
+	hda_codec_i915_exit(sdev);
+
+	return 0;
+}
+
+MODULE_LICENSE("Dual BSD/GPL");