xref: /openbmc/linux/sound/soc/sof/intel/hda.c (revision 4e95bc26)
1 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
2 //
3 // This file is provided under a dual BSD/GPLv2 license.  When using or
4 // redistributing this file, you may do so under either license.
5 //
6 // Copyright(c) 2018 Intel Corporation. All rights reserved.
7 //
8 // Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
9 //	    Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
10 //	    Rander Wang <rander.wang@intel.com>
11 //          Keyon Jie <yang.jie@linux.intel.com>
12 //
13 
14 /*
15  * Hardware interface for generic Intel audio DSP HDA IP
16  */
17 
18 #include <linux/module.h>
19 #include <sound/hdaudio_ext.h>
20 #include <sound/sof.h>
21 #include <sound/sof/xtensa.h>
22 #include "../ops.h"
23 #include "hda.h"
24 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
25 #include "../../codecs/hdac_hda.h"
26 #endif
27 
28 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
29 #include <sound/soc-acpi-intel-match.h>
30 #endif
31 
32 /* platform specific devices */
33 #include "shim.h"
34 
35 /*
36  * Debug
37  */
38 
39 struct hda_dsp_msg_code {
40 	u32 code;
41 	const char *msg;
42 };
43 
44 static const struct hda_dsp_msg_code hda_dsp_rom_msg[] = {
45 	{HDA_DSP_ROM_FW_MANIFEST_LOADED, "status: manifest loaded"},
46 	{HDA_DSP_ROM_FW_FW_LOADED, "status: fw loaded"},
47 	{HDA_DSP_ROM_FW_ENTERED, "status: fw entered"},
48 	{HDA_DSP_ROM_CSE_ERROR, "error: cse error"},
49 	{HDA_DSP_ROM_CSE_WRONG_RESPONSE, "error: cse wrong response"},
50 	{HDA_DSP_ROM_IMR_TO_SMALL, "error: IMR too small"},
51 	{HDA_DSP_ROM_BASE_FW_NOT_FOUND, "error: base fw not found"},
52 	{HDA_DSP_ROM_CSE_VALIDATION_FAILED, "error: signature verification failed"},
53 	{HDA_DSP_ROM_IPC_FATAL_ERROR, "error: ipc fatal error"},
54 	{HDA_DSP_ROM_L2_CACHE_ERROR, "error: L2 cache error"},
55 	{HDA_DSP_ROM_LOAD_OFFSET_TO_SMALL, "error: load offset too small"},
56 	{HDA_DSP_ROM_API_PTR_INVALID, "error: API ptr invalid"},
57 	{HDA_DSP_ROM_BASEFW_INCOMPAT, "error: base fw incompatible"},
58 	{HDA_DSP_ROM_UNHANDLED_INTERRUPT, "error: unhandled interrupt"},
59 	{HDA_DSP_ROM_MEMORY_HOLE_ECC, "error: ECC memory hole"},
60 	{HDA_DSP_ROM_KERNEL_EXCEPTION, "error: kernel exception"},
61 	{HDA_DSP_ROM_USER_EXCEPTION, "error: user exception"},
62 	{HDA_DSP_ROM_UNEXPECTED_RESET, "error: unexpected reset"},
63 	{HDA_DSP_ROM_NULL_FW_ENTRY,	"error: null FW entry point"},
64 };
65 
66 static void hda_dsp_get_status_skl(struct snd_sof_dev *sdev)
67 {
68 	u32 status;
69 	int i;
70 
71 	status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
72 				  HDA_ADSP_FW_STATUS_SKL);
73 
74 	for (i = 0; i < ARRAY_SIZE(hda_dsp_rom_msg); i++) {
75 		if (status == hda_dsp_rom_msg[i].code) {
76 			dev_err(sdev->dev, "%s - code %8.8x\n",
77 				hda_dsp_rom_msg[i].msg, status);
78 			return;
79 		}
80 	}
81 
82 	/* not for us, must be generic sof message */
83 	dev_dbg(sdev->dev, "unknown ROM status value %8.8x\n", status);
84 }
85 
86 static void hda_dsp_get_status(struct snd_sof_dev *sdev)
87 {
88 	u32 status;
89 	int i;
90 
91 	status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
92 				  HDA_DSP_SRAM_REG_ROM_STATUS);
93 
94 	for (i = 0; i < ARRAY_SIZE(hda_dsp_rom_msg); i++) {
95 		if (status == hda_dsp_rom_msg[i].code) {
96 			dev_err(sdev->dev, "%s - code %8.8x\n",
97 				hda_dsp_rom_msg[i].msg, status);
98 			return;
99 		}
100 	}
101 
102 	/* not for us, must be generic sof message */
103 	dev_dbg(sdev->dev, "unknown ROM status value %8.8x\n", status);
104 }
105 
106 static void hda_dsp_get_registers(struct snd_sof_dev *sdev,
107 				  struct sof_ipc_dsp_oops_xtensa *xoops,
108 				  struct sof_ipc_panic_info *panic_info,
109 				  u32 *stack, size_t stack_words)
110 {
111 	u32 offset = sdev->dsp_oops_offset;
112 
113 	/* first read registers */
114 	sof_mailbox_read(sdev, offset, xoops, sizeof(*xoops));
115 
116 	/* note: variable AR register array is not read */
117 
118 	/* then get panic info */
119 	offset += xoops->arch_hdr.totalsize;
120 	sof_block_read(sdev, sdev->mmio_bar, offset,
121 		       panic_info, sizeof(*panic_info));
122 
123 	/* then get the stack */
124 	offset += sizeof(*panic_info);
125 	sof_block_read(sdev, sdev->mmio_bar, offset, stack,
126 		       stack_words * sizeof(u32));
127 }
128 
129 void hda_dsp_dump_skl(struct snd_sof_dev *sdev, u32 flags)
130 {
131 	struct sof_ipc_dsp_oops_xtensa xoops;
132 	struct sof_ipc_panic_info panic_info;
133 	u32 stack[HDA_DSP_STACK_DUMP_SIZE];
134 	u32 status, panic;
135 
136 	/* try APL specific status message types first */
137 	hda_dsp_get_status_skl(sdev);
138 
139 	/* now try generic SOF status messages */
140 	status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
141 				  HDA_ADSP_ERROR_CODE_SKL);
142 
143 	/*TODO: Check: there is no define in spec, but it is used in the code*/
144 	panic = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
145 				 HDA_ADSP_ERROR_CODE_SKL + 0x4);
146 
147 	if (sdev->boot_complete) {
148 		hda_dsp_get_registers(sdev, &xoops, &panic_info, stack,
149 				      HDA_DSP_STACK_DUMP_SIZE);
150 		snd_sof_get_status(sdev, status, panic, &xoops, &panic_info,
151 				   stack, HDA_DSP_STACK_DUMP_SIZE);
152 	} else {
153 		dev_err(sdev->dev, "error: status = 0x%8.8x panic = 0x%8.8x\n",
154 			status, panic);
155 		hda_dsp_get_status_skl(sdev);
156 	}
157 }
158 
159 void hda_dsp_dump(struct snd_sof_dev *sdev, u32 flags)
160 {
161 	struct sof_ipc_dsp_oops_xtensa xoops;
162 	struct sof_ipc_panic_info panic_info;
163 	u32 stack[HDA_DSP_STACK_DUMP_SIZE];
164 	u32 status, panic;
165 
166 	/* try APL specific status message types first */
167 	hda_dsp_get_status(sdev);
168 
169 	/* now try generic SOF status messages */
170 	status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
171 				  HDA_DSP_SRAM_REG_FW_STATUS);
172 	panic = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_SRAM_REG_FW_TRACEP);
173 
174 	if (sdev->boot_complete) {
175 		hda_dsp_get_registers(sdev, &xoops, &panic_info, stack,
176 				      HDA_DSP_STACK_DUMP_SIZE);
177 		snd_sof_get_status(sdev, status, panic, &xoops, &panic_info,
178 				   stack, HDA_DSP_STACK_DUMP_SIZE);
179 	} else {
180 		dev_err(sdev->dev, "error: status = 0x%8.8x panic = 0x%8.8x\n",
181 			status, panic);
182 		hda_dsp_get_status(sdev);
183 	}
184 }
185 
186 void hda_ipc_dump(struct snd_sof_dev *sdev)
187 {
188 	u32 hipcie;
189 	u32 hipct;
190 	u32 hipcctl;
191 
192 	/* read IPC status */
193 	hipcie = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCIE);
194 	hipct = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCT);
195 	hipcctl = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCCTL);
196 
197 	/* dump the IPC regs */
198 	/* TODO: parse the raw msg */
199 	dev_err(sdev->dev,
200 		"error: host status 0x%8.8x dsp status 0x%8.8x mask 0x%8.8x\n",
201 		hipcie, hipct, hipcctl);
202 }
203 
204 static int hda_init(struct snd_sof_dev *sdev)
205 {
206 	struct hda_bus *hbus;
207 	struct hdac_bus *bus;
208 	struct hdac_ext_bus_ops *ext_ops = NULL;
209 	struct pci_dev *pci = to_pci_dev(sdev->dev);
210 	int ret;
211 
212 	hbus = sof_to_hbus(sdev);
213 	bus = sof_to_bus(sdev);
214 
215 	/* HDA bus init */
216 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
217 	ext_ops = snd_soc_hdac_hda_get_ops();
218 #endif
219 	sof_hda_bus_init(bus, &pci->dev, ext_ops);
220 	bus->use_posbuf = 1;
221 	bus->bdl_pos_adj = 0;
222 
223 	mutex_init(&hbus->prepare_mutex);
224 	hbus->pci = pci;
225 	hbus->mixer_assigned = -1;
226 	hbus->modelname = "sofbus";
227 
228 	/* initialise hdac bus */
229 	bus->addr = pci_resource_start(pci, 0);
230 #if IS_ENABLED(CONFIG_PCI)
231 	bus->remap_addr = pci_ioremap_bar(pci, 0);
232 #endif
233 	if (!bus->remap_addr) {
234 		dev_err(bus->dev, "error: ioremap error\n");
235 		return -ENXIO;
236 	}
237 
238 	/* HDA base */
239 	sdev->bar[HDA_DSP_HDA_BAR] = bus->remap_addr;
240 
241 	/* get controller capabilities */
242 	ret = hda_dsp_ctrl_get_caps(sdev);
243 	if (ret < 0)
244 		dev_err(sdev->dev, "error: get caps error\n");
245 
246 	return ret;
247 }
248 
249 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
250 
251 static const char *fixup_tplg_name(struct snd_sof_dev *sdev,
252 				   const char *sof_tplg_filename)
253 {
254 	const char *tplg_filename = NULL;
255 	char *filename;
256 	char *split_ext;
257 
258 	filename = devm_kstrdup(sdev->dev, sof_tplg_filename, GFP_KERNEL);
259 	if (!filename)
260 		return NULL;
261 
262 	/* this assumes a .tplg extension */
263 	split_ext = strsep(&filename, ".");
264 	if (split_ext) {
265 		tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL,
266 					       "%s-idisp.tplg", split_ext);
267 		if (!tplg_filename)
268 			return NULL;
269 	}
270 	return tplg_filename;
271 }
272 
273 #endif
274 
275 static int hda_init_caps(struct snd_sof_dev *sdev)
276 {
277 	struct hdac_bus *bus = sof_to_bus(sdev);
278 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
279 	struct hdac_ext_link *hlink;
280 	struct snd_soc_acpi_mach_params *mach_params;
281 	struct snd_soc_acpi_mach *hda_mach;
282 	struct snd_sof_pdata *pdata = sdev->pdata;
283 	struct snd_soc_acpi_mach *mach;
284 	const char *tplg_filename;
285 	int codec_num = 0;
286 	int i;
287 #endif
288 	int ret = 0;
289 
290 	device_disable_async_suspend(bus->dev);
291 
292 	/* check if dsp is there */
293 	if (bus->ppcap)
294 		dev_dbg(sdev->dev, "PP capability, will probe DSP later.\n");
295 
296 	ret = hda_dsp_ctrl_init_chip(sdev, true);
297 	if (ret < 0) {
298 		dev_err(bus->dev, "error: init chip failed with ret: %d\n",
299 			ret);
300 		return ret;
301 	}
302 
303 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
304 	if (bus->mlcap)
305 		snd_hdac_ext_bus_get_ml_capabilities(bus);
306 
307 	/* init i915 and HDMI codecs */
308 	ret = hda_codec_i915_init(sdev);
309 	if (ret < 0) {
310 		dev_err(sdev->dev, "error: no HDMI audio devices found\n");
311 		return ret;
312 	}
313 
314 	/* codec detection */
315 	if (!bus->codec_mask) {
316 		dev_info(bus->dev, "no hda codecs found!\n");
317 	} else {
318 		dev_info(bus->dev, "hda codecs found, mask %lx\n",
319 			 bus->codec_mask);
320 
321 		for (i = 0; i < HDA_MAX_CODECS; i++) {
322 			if (bus->codec_mask & (1 << i))
323 				codec_num++;
324 		}
325 
326 		/*
327 		 * If no machine driver is found, then:
328 		 *
329 		 * hda machine driver is used if :
330 		 * 1. there is one HDMI codec and one external HDAudio codec
331 		 * 2. only HDMI codec
332 		 */
333 		if (!pdata->machine && codec_num <= 2 &&
334 		    HDA_IDISP_CODEC(bus->codec_mask)) {
335 			hda_mach = snd_soc_acpi_intel_hda_machines;
336 			pdata->machine = hda_mach;
337 
338 			/* topology: use the info from hda_machines */
339 			pdata->tplg_filename =
340 				hda_mach->sof_tplg_filename;
341 
342 			/* firmware: pick the first in machine list */
343 			mach = pdata->desc->machines;
344 			pdata->fw_filename = mach->sof_fw_filename;
345 
346 			dev_info(bus->dev, "using HDA machine driver %s now\n",
347 				 hda_mach->drv_name);
348 
349 			/* fixup topology file for HDMI only platforms */
350 			if (codec_num == 1) {
351 				/* use local variable for readability */
352 				tplg_filename = pdata->tplg_filename;
353 				tplg_filename = fixup_tplg_name(sdev, tplg_filename);
354 				if (!tplg_filename) {
355 					hda_codec_i915_exit(sdev);
356 					return ret;
357 				}
358 				pdata->tplg_filename = tplg_filename;
359 			}
360 		}
361 	}
362 
363 	/* used by hda machine driver to create dai links */
364 	if (pdata->machine) {
365 		mach_params = (struct snd_soc_acpi_mach_params *)
366 			&pdata->machine->mach_params;
367 		mach_params->codec_mask = bus->codec_mask;
368 		mach_params->platform = dev_name(sdev->dev);
369 	}
370 
371 	/* create codec instances */
372 	hda_codec_probe_bus(sdev);
373 
374 	hda_codec_i915_put(sdev);
375 
376 	/*
377 	 * we are done probing so decrement link counts
378 	 */
379 	list_for_each_entry(hlink, &bus->hlink_list, list)
380 		snd_hdac_ext_bus_link_put(bus, hlink);
381 #endif
382 	return 0;
383 }
384 
385 static const struct sof_intel_dsp_desc
386 	*get_chip_info(struct snd_sof_pdata *pdata)
387 {
388 	const struct sof_dev_desc *desc = pdata->desc;
389 	const struct sof_intel_dsp_desc *chip_info;
390 
391 	chip_info = desc->chip_info;
392 
393 	return chip_info;
394 }
395 
396 int hda_dsp_probe(struct snd_sof_dev *sdev)
397 {
398 	struct pci_dev *pci = to_pci_dev(sdev->dev);
399 	struct sof_intel_hda_dev *hdev;
400 	struct hdac_bus *bus;
401 	const struct sof_intel_dsp_desc *chip;
402 	int ret = 0;
403 
404 	/*
405 	 * detect DSP by checking class/subclass/prog-id information
406 	 * class=04 subclass 03 prog-if 00: no DSP, legacy driver is required
407 	 * class=04 subclass 01 prog-if 00: DSP is present
408 	 *   (and may be required e.g. for DMIC or SSP support)
409 	 * class=04 subclass 03 prog-if 80: either of DSP or legacy mode works
410 	 */
411 	if (pci->class == 0x040300) {
412 		dev_err(sdev->dev, "error: the DSP is not enabled on this platform, aborting probe\n");
413 		return -ENODEV;
414 	} else if (pci->class != 0x040100 && pci->class != 0x040380) {
415 		dev_err(sdev->dev, "error: unknown PCI class/subclass/prog-if 0x%06x found, aborting probe\n", pci->class);
416 		return -ENODEV;
417 	}
418 	dev_info(sdev->dev, "DSP detected with PCI class/subclass/prog-if 0x%06x\n", pci->class);
419 
420 	chip = get_chip_info(sdev->pdata);
421 	if (!chip) {
422 		dev_err(sdev->dev, "error: no such device supported, chip id:%x\n",
423 			pci->device);
424 		ret = -EIO;
425 		goto err;
426 	}
427 
428 	hdev = devm_kzalloc(sdev->dev, sizeof(*hdev), GFP_KERNEL);
429 	if (!hdev)
430 		return -ENOMEM;
431 	sdev->pdata->hw_pdata = hdev;
432 	hdev->desc = chip;
433 
434 	hdev->dmic_dev = platform_device_register_data(sdev->dev, "dmic-codec",
435 						       PLATFORM_DEVID_NONE,
436 						       NULL, 0);
437 	if (IS_ERR(hdev->dmic_dev)) {
438 		dev_err(sdev->dev, "error: failed to create DMIC device\n");
439 		return PTR_ERR(hdev->dmic_dev);
440 	}
441 
442 	/*
443 	 * use position update IPC if either it is forced
444 	 * or we don't have other choice
445 	 */
446 #if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_FORCE_IPC_POSITION)
447 	hdev->no_ipc_position = 0;
448 #else
449 	hdev->no_ipc_position = sof_ops(sdev)->pcm_pointer ? 1 : 0;
450 #endif
451 
452 	/* set up HDA base */
453 	bus = sof_to_bus(sdev);
454 	ret = hda_init(sdev);
455 	if (ret < 0)
456 		goto hdac_bus_unmap;
457 
458 	/* DSP base */
459 #if IS_ENABLED(CONFIG_PCI)
460 	sdev->bar[HDA_DSP_BAR] = pci_ioremap_bar(pci, HDA_DSP_BAR);
461 #endif
462 	if (!sdev->bar[HDA_DSP_BAR]) {
463 		dev_err(sdev->dev, "error: ioremap error\n");
464 		ret = -ENXIO;
465 		goto hdac_bus_unmap;
466 	}
467 
468 	sdev->mmio_bar = HDA_DSP_BAR;
469 	sdev->mailbox_bar = HDA_DSP_BAR;
470 
471 	/* allow 64bit DMA address if supported by H/W */
472 	if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(64))) {
473 		dev_dbg(sdev->dev, "DMA mask is 64 bit\n");
474 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(64));
475 	} else {
476 		dev_dbg(sdev->dev, "DMA mask is 32 bit\n");
477 		dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
478 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
479 	}
480 
481 	/* init streams */
482 	ret = hda_dsp_stream_init(sdev);
483 	if (ret < 0) {
484 		dev_err(sdev->dev, "error: failed to init streams\n");
485 		/*
486 		 * not all errors are due to memory issues, but trying
487 		 * to free everything does not harm
488 		 */
489 		goto free_streams;
490 	}
491 
492 	/*
493 	 * register our IRQ
494 	 * let's try to enable msi firstly
495 	 * if it fails, use legacy interrupt mode
496 	 * TODO: support interrupt mode selection with kernel parameter
497 	 *       support msi multiple vectors
498 	 */
499 	ret = pci_alloc_irq_vectors(pci, 1, 1, PCI_IRQ_MSI);
500 	if (ret < 0) {
501 		dev_info(sdev->dev, "use legacy interrupt mode\n");
502 		/*
503 		 * in IO-APIC mode, hda->irq and ipc_irq are using the same
504 		 * irq number of pci->irq
505 		 */
506 		hdev->irq = pci->irq;
507 		sdev->ipc_irq = pci->irq;
508 		sdev->msi_enabled = 0;
509 	} else {
510 		dev_info(sdev->dev, "use msi interrupt mode\n");
511 		hdev->irq = pci_irq_vector(pci, 0);
512 		/* ipc irq number is the same of hda irq */
513 		sdev->ipc_irq = hdev->irq;
514 		sdev->msi_enabled = 1;
515 	}
516 
517 	dev_dbg(sdev->dev, "using HDA IRQ %d\n", hdev->irq);
518 	ret = request_threaded_irq(hdev->irq, hda_dsp_stream_interrupt,
519 				   hda_dsp_stream_threaded_handler,
520 				   IRQF_SHARED, "AudioHDA", bus);
521 	if (ret < 0) {
522 		dev_err(sdev->dev, "error: failed to register HDA IRQ %d\n",
523 			hdev->irq);
524 		goto free_irq_vector;
525 	}
526 
527 	dev_dbg(sdev->dev, "using IPC IRQ %d\n", sdev->ipc_irq);
528 	ret = request_threaded_irq(sdev->ipc_irq, hda_dsp_ipc_irq_handler,
529 				   sof_ops(sdev)->irq_thread, IRQF_SHARED,
530 				   "AudioDSP", sdev);
531 	if (ret < 0) {
532 		dev_err(sdev->dev, "error: failed to register IPC IRQ %d\n",
533 			sdev->ipc_irq);
534 		goto free_hda_irq;
535 	}
536 
537 	pci_set_master(pci);
538 	synchronize_irq(pci->irq);
539 
540 	/*
541 	 * clear TCSEL to clear playback on some HD Audio
542 	 * codecs. PCI TCSEL is defined in the Intel manuals.
543 	 */
544 	snd_sof_pci_update_bits(sdev, PCI_TCSEL, 0x07, 0);
545 
546 	/* init HDA capabilities */
547 	ret = hda_init_caps(sdev);
548 	if (ret < 0)
549 		goto free_ipc_irq;
550 
551 	/* enable ppcap interrupt */
552 	hda_dsp_ctrl_ppcap_enable(sdev, true);
553 	hda_dsp_ctrl_ppcap_int_enable(sdev, true);
554 
555 	/* initialize waitq for code loading */
556 	init_waitqueue_head(&sdev->waitq);
557 
558 	/* set default mailbox offset for FW ready message */
559 	sdev->dsp_box.offset = HDA_DSP_MBOX_UPLINK_OFFSET;
560 
561 	return 0;
562 
563 free_ipc_irq:
564 	free_irq(sdev->ipc_irq, sdev);
565 free_hda_irq:
566 	free_irq(hdev->irq, bus);
567 free_irq_vector:
568 	if (sdev->msi_enabled)
569 		pci_free_irq_vectors(pci);
570 free_streams:
571 	hda_dsp_stream_free(sdev);
572 /* dsp_unmap: not currently used */
573 	iounmap(sdev->bar[HDA_DSP_BAR]);
574 hdac_bus_unmap:
575 	iounmap(bus->remap_addr);
576 err:
577 	return ret;
578 }
579 
580 int hda_dsp_remove(struct snd_sof_dev *sdev)
581 {
582 	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
583 	struct hdac_bus *bus = sof_to_bus(sdev);
584 	struct pci_dev *pci = to_pci_dev(sdev->dev);
585 	const struct sof_intel_dsp_desc *chip = hda->desc;
586 
587 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
588 	/* codec removal, invoke bus_device_remove */
589 	snd_hdac_ext_bus_device_remove(bus);
590 #endif
591 
592 	if (!IS_ERR_OR_NULL(hda->dmic_dev))
593 		platform_device_unregister(hda->dmic_dev);
594 
595 	/* disable DSP IRQ */
596 	snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL,
597 				SOF_HDA_PPCTL_PIE, 0);
598 
599 	/* disable CIE and GIE interrupts */
600 	snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL,
601 				SOF_HDA_INT_CTRL_EN | SOF_HDA_INT_GLOBAL_EN, 0);
602 
603 	/* disable cores */
604 	if (chip)
605 		hda_dsp_core_reset_power_down(sdev, chip->cores_mask);
606 
607 	/* disable DSP */
608 	snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL,
609 				SOF_HDA_PPCTL_GPROCEN, 0);
610 
611 	free_irq(sdev->ipc_irq, sdev);
612 	free_irq(hda->irq, bus);
613 	if (sdev->msi_enabled)
614 		pci_free_irq_vectors(pci);
615 
616 	hda_dsp_stream_free(sdev);
617 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
618 	snd_hdac_link_free_all(bus);
619 #endif
620 
621 	iounmap(sdev->bar[HDA_DSP_BAR]);
622 	iounmap(bus->remap_addr);
623 
624 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
625 	snd_hdac_ext_bus_exit(bus);
626 #endif
627 	hda_codec_i915_exit(sdev);
628 
629 	return 0;
630 }
631 
632 MODULE_LICENSE("Dual BSD/GPL");
633