xref: /openbmc/linux/sound/soc/sof/intel/hda.c (revision f17f06a0)
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 <sound/hdaudio_ext.h>
19 #include <sound/hda_register.h>
20 
21 #include <linux/module.h>
22 #include <sound/intel-nhlt.h>
23 #include <sound/sof.h>
24 #include <sound/sof/xtensa.h>
25 #include "../ops.h"
26 #include "hda.h"
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 #define EXCEPT_MAX_HDR_SIZE	0x400
36 
37 /*
38  * Debug
39  */
40 
41 struct hda_dsp_msg_code {
42 	u32 code;
43 	const char *msg;
44 };
45 
46 static bool hda_use_msi = IS_ENABLED(CONFIG_PCI);
47 #if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG)
48 module_param_named(use_msi, hda_use_msi, bool, 0444);
49 MODULE_PARM_DESC(use_msi, "SOF HDA use PCI MSI mode");
50 #endif
51 
52 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
53 static int hda_dmic_num = -1;
54 module_param_named(dmic_num, hda_dmic_num, int, 0444);
55 MODULE_PARM_DESC(dmic_num, "SOF HDA DMIC number");
56 
57 static bool hda_codec_use_common_hdmi =
58 	IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_COMMON_HDMI_CODEC);
59 module_param_named(use_common_hdmi, hda_codec_use_common_hdmi, bool, 0444);
60 MODULE_PARM_DESC(use_common_hdmi, "SOF HDA use common HDMI codec driver");
61 #endif
62 
63 static const struct hda_dsp_msg_code hda_dsp_rom_msg[] = {
64 	{HDA_DSP_ROM_FW_MANIFEST_LOADED, "status: manifest loaded"},
65 	{HDA_DSP_ROM_FW_FW_LOADED, "status: fw loaded"},
66 	{HDA_DSP_ROM_FW_ENTERED, "status: fw entered"},
67 	{HDA_DSP_ROM_CSE_ERROR, "error: cse error"},
68 	{HDA_DSP_ROM_CSE_WRONG_RESPONSE, "error: cse wrong response"},
69 	{HDA_DSP_ROM_IMR_TO_SMALL, "error: IMR too small"},
70 	{HDA_DSP_ROM_BASE_FW_NOT_FOUND, "error: base fw not found"},
71 	{HDA_DSP_ROM_CSE_VALIDATION_FAILED, "error: signature verification failed"},
72 	{HDA_DSP_ROM_IPC_FATAL_ERROR, "error: ipc fatal error"},
73 	{HDA_DSP_ROM_L2_CACHE_ERROR, "error: L2 cache error"},
74 	{HDA_DSP_ROM_LOAD_OFFSET_TO_SMALL, "error: load offset too small"},
75 	{HDA_DSP_ROM_API_PTR_INVALID, "error: API ptr invalid"},
76 	{HDA_DSP_ROM_BASEFW_INCOMPAT, "error: base fw incompatible"},
77 	{HDA_DSP_ROM_UNHANDLED_INTERRUPT, "error: unhandled interrupt"},
78 	{HDA_DSP_ROM_MEMORY_HOLE_ECC, "error: ECC memory hole"},
79 	{HDA_DSP_ROM_KERNEL_EXCEPTION, "error: kernel exception"},
80 	{HDA_DSP_ROM_USER_EXCEPTION, "error: user exception"},
81 	{HDA_DSP_ROM_UNEXPECTED_RESET, "error: unexpected reset"},
82 	{HDA_DSP_ROM_NULL_FW_ENTRY,	"error: null FW entry point"},
83 };
84 
85 static void hda_dsp_get_status_skl(struct snd_sof_dev *sdev)
86 {
87 	u32 status;
88 	int i;
89 
90 	status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
91 				  HDA_ADSP_FW_STATUS_SKL);
92 
93 	for (i = 0; i < ARRAY_SIZE(hda_dsp_rom_msg); i++) {
94 		if (status == hda_dsp_rom_msg[i].code) {
95 			dev_err(sdev->dev, "%s - code %8.8x\n",
96 				hda_dsp_rom_msg[i].msg, status);
97 			return;
98 		}
99 	}
100 
101 	/* not for us, must be generic sof message */
102 	dev_dbg(sdev->dev, "unknown ROM status value %8.8x\n", status);
103 }
104 
105 static void hda_dsp_get_status(struct snd_sof_dev *sdev)
106 {
107 	u32 status;
108 	int i;
109 
110 	status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
111 				  HDA_DSP_SRAM_REG_ROM_STATUS);
112 
113 	for (i = 0; i < ARRAY_SIZE(hda_dsp_rom_msg); i++) {
114 		if (status == hda_dsp_rom_msg[i].code) {
115 			dev_err(sdev->dev, "%s - code %8.8x\n",
116 				hda_dsp_rom_msg[i].msg, status);
117 			return;
118 		}
119 	}
120 
121 	/* not for us, must be generic sof message */
122 	dev_dbg(sdev->dev, "unknown ROM status value %8.8x\n", status);
123 }
124 
125 static void hda_dsp_get_registers(struct snd_sof_dev *sdev,
126 				  struct sof_ipc_dsp_oops_xtensa *xoops,
127 				  struct sof_ipc_panic_info *panic_info,
128 				  u32 *stack, size_t stack_words)
129 {
130 	u32 offset = sdev->dsp_oops_offset;
131 
132 	/* first read registers */
133 	sof_mailbox_read(sdev, offset, xoops, sizeof(*xoops));
134 
135 	/* note: variable AR register array is not read */
136 
137 	/* then get panic info */
138 	if (xoops->arch_hdr.totalsize > EXCEPT_MAX_HDR_SIZE) {
139 		dev_err(sdev->dev, "invalid header size 0x%x. FW oops is bogus\n",
140 			xoops->arch_hdr.totalsize);
141 		return;
142 	}
143 	offset += xoops->arch_hdr.totalsize;
144 	sof_block_read(sdev, sdev->mmio_bar, offset,
145 		       panic_info, sizeof(*panic_info));
146 
147 	/* then get the stack */
148 	offset += sizeof(*panic_info);
149 	sof_block_read(sdev, sdev->mmio_bar, offset, stack,
150 		       stack_words * sizeof(u32));
151 }
152 
153 void hda_dsp_dump_skl(struct snd_sof_dev *sdev, u32 flags)
154 {
155 	struct sof_ipc_dsp_oops_xtensa xoops;
156 	struct sof_ipc_panic_info panic_info;
157 	u32 stack[HDA_DSP_STACK_DUMP_SIZE];
158 	u32 status, panic;
159 
160 	/* try APL specific status message types first */
161 	hda_dsp_get_status_skl(sdev);
162 
163 	/* now try generic SOF status messages */
164 	status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
165 				  HDA_ADSP_ERROR_CODE_SKL);
166 
167 	/*TODO: Check: there is no define in spec, but it is used in the code*/
168 	panic = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
169 				 HDA_ADSP_ERROR_CODE_SKL + 0x4);
170 
171 	if (sdev->fw_state == SOF_FW_BOOT_COMPLETE) {
172 		hda_dsp_get_registers(sdev, &xoops, &panic_info, stack,
173 				      HDA_DSP_STACK_DUMP_SIZE);
174 		snd_sof_get_status(sdev, status, panic, &xoops, &panic_info,
175 				   stack, HDA_DSP_STACK_DUMP_SIZE);
176 	} else {
177 		dev_err(sdev->dev, "error: status = 0x%8.8x panic = 0x%8.8x\n",
178 			status, panic);
179 		hda_dsp_get_status_skl(sdev);
180 	}
181 }
182 
183 void hda_dsp_dump(struct snd_sof_dev *sdev, u32 flags)
184 {
185 	struct sof_ipc_dsp_oops_xtensa xoops;
186 	struct sof_ipc_panic_info panic_info;
187 	u32 stack[HDA_DSP_STACK_DUMP_SIZE];
188 	u32 status, panic;
189 
190 	/* try APL specific status message types first */
191 	hda_dsp_get_status(sdev);
192 
193 	/* now try generic SOF status messages */
194 	status = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
195 				  HDA_DSP_SRAM_REG_FW_STATUS);
196 	panic = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_SRAM_REG_FW_TRACEP);
197 
198 	if (sdev->fw_state == SOF_FW_BOOT_COMPLETE) {
199 		hda_dsp_get_registers(sdev, &xoops, &panic_info, stack,
200 				      HDA_DSP_STACK_DUMP_SIZE);
201 		snd_sof_get_status(sdev, status, panic, &xoops, &panic_info,
202 				   stack, HDA_DSP_STACK_DUMP_SIZE);
203 	} else {
204 		dev_err(sdev->dev, "error: status = 0x%8.8x panic = 0x%8.8x\n",
205 			status, panic);
206 		hda_dsp_get_status(sdev);
207 	}
208 }
209 
210 void hda_ipc_irq_dump(struct snd_sof_dev *sdev)
211 {
212 	struct hdac_bus *bus = sof_to_bus(sdev);
213 	u32 adspis;
214 	u32 intsts;
215 	u32 intctl;
216 	u32 ppsts;
217 	u8 rirbsts;
218 
219 	/* read key IRQ stats and config registers */
220 	adspis = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPIS);
221 	intsts = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTSTS);
222 	intctl = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL);
223 	ppsts = snd_sof_dsp_read(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPSTS);
224 	rirbsts = snd_hdac_chip_readb(bus, RIRBSTS);
225 
226 	dev_err(sdev->dev,
227 		"error: hda irq intsts 0x%8.8x intlctl 0x%8.8x rirb %2.2x\n",
228 		intsts, intctl, rirbsts);
229 	dev_err(sdev->dev,
230 		"error: dsp irq ppsts 0x%8.8x adspis 0x%8.8x\n",
231 		ppsts, adspis);
232 }
233 
234 void hda_ipc_dump(struct snd_sof_dev *sdev)
235 {
236 	u32 hipcie;
237 	u32 hipct;
238 	u32 hipcctl;
239 
240 	hda_ipc_irq_dump(sdev);
241 
242 	/* read IPC status */
243 	hipcie = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCIE);
244 	hipct = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCT);
245 	hipcctl = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCCTL);
246 
247 	/* dump the IPC regs */
248 	/* TODO: parse the raw msg */
249 	dev_err(sdev->dev,
250 		"error: host status 0x%8.8x dsp status 0x%8.8x mask 0x%8.8x\n",
251 		hipcie, hipct, hipcctl);
252 }
253 
254 static int hda_init(struct snd_sof_dev *sdev)
255 {
256 	struct hda_bus *hbus;
257 	struct hdac_bus *bus;
258 	struct pci_dev *pci = to_pci_dev(sdev->dev);
259 	int ret;
260 
261 	hbus = sof_to_hbus(sdev);
262 	bus = sof_to_bus(sdev);
263 
264 	/* HDA bus init */
265 	sof_hda_bus_init(bus, &pci->dev);
266 
267 	bus->use_posbuf = 1;
268 	bus->bdl_pos_adj = 0;
269 	bus->sync_write = 1;
270 
271 	mutex_init(&hbus->prepare_mutex);
272 	hbus->pci = pci;
273 	hbus->mixer_assigned = -1;
274 	hbus->modelname = "sofbus";
275 
276 	/* initialise hdac bus */
277 	bus->addr = pci_resource_start(pci, 0);
278 #if IS_ENABLED(CONFIG_PCI)
279 	bus->remap_addr = pci_ioremap_bar(pci, 0);
280 #endif
281 	if (!bus->remap_addr) {
282 		dev_err(bus->dev, "error: ioremap error\n");
283 		return -ENXIO;
284 	}
285 
286 	/* HDA base */
287 	sdev->bar[HDA_DSP_HDA_BAR] = bus->remap_addr;
288 
289 	/* init i915 and HDMI codecs */
290 	ret = hda_codec_i915_init(sdev);
291 	if (ret < 0) {
292 		dev_err(sdev->dev, "error: init i915 and HDMI codec failed\n");
293 		return ret;
294 	}
295 
296 	/* get controller capabilities */
297 	ret = hda_dsp_ctrl_get_caps(sdev);
298 	if (ret < 0)
299 		dev_err(sdev->dev, "error: get caps error\n");
300 
301 	return ret;
302 }
303 
304 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
305 
306 static int check_nhlt_dmic(struct snd_sof_dev *sdev)
307 {
308 	struct nhlt_acpi_table *nhlt;
309 	int dmic_num;
310 
311 	nhlt = intel_nhlt_init(sdev->dev);
312 	if (nhlt) {
313 		dmic_num = intel_nhlt_get_dmic_geo(sdev->dev, nhlt);
314 		intel_nhlt_free(nhlt);
315 		if (dmic_num == 2 || dmic_num == 4)
316 			return dmic_num;
317 	}
318 
319 	return 0;
320 }
321 
322 static const char *fixup_tplg_name(struct snd_sof_dev *sdev,
323 				   const char *sof_tplg_filename,
324 				   const char *idisp_str,
325 				   const char *dmic_str)
326 {
327 	const char *tplg_filename = NULL;
328 	char *filename;
329 	char *split_ext;
330 
331 	filename = devm_kstrdup(sdev->dev, sof_tplg_filename, GFP_KERNEL);
332 	if (!filename)
333 		return NULL;
334 
335 	/* this assumes a .tplg extension */
336 	split_ext = strsep(&filename, ".");
337 	if (split_ext) {
338 		tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL,
339 					       "%s%s%s.tplg",
340 					       split_ext, idisp_str, dmic_str);
341 		if (!tplg_filename)
342 			return NULL;
343 	}
344 	return tplg_filename;
345 }
346 
347 #endif
348 
349 static int hda_init_caps(struct snd_sof_dev *sdev)
350 {
351 	struct hdac_bus *bus = sof_to_bus(sdev);
352 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
353 	struct hdac_ext_link *hlink;
354 #endif
355 	int ret = 0;
356 
357 	device_disable_async_suspend(bus->dev);
358 
359 	/* check if dsp is there */
360 	if (bus->ppcap)
361 		dev_dbg(sdev->dev, "PP capability, will probe DSP later.\n");
362 
363 	/* Init HDA controller after i915 init */
364 	ret = hda_dsp_ctrl_init_chip(sdev, true);
365 	if (ret < 0) {
366 		dev_err(bus->dev, "error: init chip failed with ret: %d\n",
367 			ret);
368 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
369 		hda_codec_i915_exit(sdev);
370 #endif
371 		return ret;
372 	}
373 
374 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
375 	if (bus->mlcap)
376 		snd_hdac_ext_bus_get_ml_capabilities(bus);
377 
378 	/* create codec instances */
379 	hda_codec_probe_bus(sdev, hda_codec_use_common_hdmi);
380 
381 	if (!HDA_IDISP_CODEC(bus->codec_mask))
382 		hda_codec_i915_exit(sdev);
383 
384 	/*
385 	 * we are done probing so decrement link counts
386 	 */
387 	list_for_each_entry(hlink, &bus->hlink_list, list)
388 		snd_hdac_ext_bus_link_put(bus, hlink);
389 #endif
390 	return 0;
391 }
392 
393 static const struct sof_intel_dsp_desc
394 	*get_chip_info(struct snd_sof_pdata *pdata)
395 {
396 	const struct sof_dev_desc *desc = pdata->desc;
397 	const struct sof_intel_dsp_desc *chip_info;
398 
399 	chip_info = desc->chip_info;
400 
401 	return chip_info;
402 }
403 
404 static irqreturn_t hda_dsp_interrupt_handler(int irq, void *context)
405 {
406 	struct snd_sof_dev *sdev = context;
407 
408 	/*
409 	 * Get global interrupt status. It includes all hardware interrupt
410 	 * sources in the Intel HD Audio controller.
411 	 */
412 	if (snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTSTS) &
413 	    SOF_HDA_INTSTS_GIS) {
414 
415 		/* disable GIE interrupt */
416 		snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR,
417 					SOF_HDA_INTCTL,
418 					SOF_HDA_INT_GLOBAL_EN,
419 					0);
420 
421 		return IRQ_WAKE_THREAD;
422 	}
423 
424 	return IRQ_NONE;
425 }
426 
427 static irqreturn_t hda_dsp_interrupt_thread(int irq, void *context)
428 {
429 	struct snd_sof_dev *sdev = context;
430 
431 	/* deal with streams and controller first */
432 	if (hda_dsp_check_stream_irq(sdev))
433 		hda_dsp_stream_threaded_handler(irq, sdev);
434 
435 	if (hda_dsp_check_ipc_irq(sdev))
436 		sof_ops(sdev)->irq_thread(irq, sdev);
437 
438 	/* enable GIE interrupt */
439 	snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR,
440 				SOF_HDA_INTCTL,
441 				SOF_HDA_INT_GLOBAL_EN,
442 				SOF_HDA_INT_GLOBAL_EN);
443 
444 	return IRQ_HANDLED;
445 }
446 
447 int hda_dsp_probe(struct snd_sof_dev *sdev)
448 {
449 	struct pci_dev *pci = to_pci_dev(sdev->dev);
450 	struct sof_intel_hda_dev *hdev;
451 	struct hdac_bus *bus;
452 	const struct sof_intel_dsp_desc *chip;
453 	int ret = 0;
454 
455 	/*
456 	 * detect DSP by checking class/subclass/prog-id information
457 	 * class=04 subclass 03 prog-if 00: no DSP, legacy driver is required
458 	 * class=04 subclass 01 prog-if 00: DSP is present
459 	 *   (and may be required e.g. for DMIC or SSP support)
460 	 * class=04 subclass 03 prog-if 80: either of DSP or legacy mode works
461 	 */
462 	if (pci->class == 0x040300) {
463 		dev_err(sdev->dev, "error: the DSP is not enabled on this platform, aborting probe\n");
464 		return -ENODEV;
465 	} else if (pci->class != 0x040100 && pci->class != 0x040380) {
466 		dev_err(sdev->dev, "error: unknown PCI class/subclass/prog-if 0x%06x found, aborting probe\n", pci->class);
467 		return -ENODEV;
468 	}
469 	dev_info(sdev->dev, "DSP detected with PCI class/subclass/prog-if 0x%06x\n", pci->class);
470 
471 	chip = get_chip_info(sdev->pdata);
472 	if (!chip) {
473 		dev_err(sdev->dev, "error: no such device supported, chip id:%x\n",
474 			pci->device);
475 		ret = -EIO;
476 		goto err;
477 	}
478 
479 	hdev = devm_kzalloc(sdev->dev, sizeof(*hdev), GFP_KERNEL);
480 	if (!hdev)
481 		return -ENOMEM;
482 	sdev->pdata->hw_pdata = hdev;
483 	hdev->desc = chip;
484 
485 	hdev->dmic_dev = platform_device_register_data(sdev->dev, "dmic-codec",
486 						       PLATFORM_DEVID_NONE,
487 						       NULL, 0);
488 	if (IS_ERR(hdev->dmic_dev)) {
489 		dev_err(sdev->dev, "error: failed to create DMIC device\n");
490 		return PTR_ERR(hdev->dmic_dev);
491 	}
492 
493 	/*
494 	 * use position update IPC if either it is forced
495 	 * or we don't have other choice
496 	 */
497 #if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_FORCE_IPC_POSITION)
498 	hdev->no_ipc_position = 0;
499 #else
500 	hdev->no_ipc_position = sof_ops(sdev)->pcm_pointer ? 1 : 0;
501 #endif
502 
503 	/* set up HDA base */
504 	bus = sof_to_bus(sdev);
505 	ret = hda_init(sdev);
506 	if (ret < 0)
507 		goto hdac_bus_unmap;
508 
509 	/* DSP base */
510 #if IS_ENABLED(CONFIG_PCI)
511 	sdev->bar[HDA_DSP_BAR] = pci_ioremap_bar(pci, HDA_DSP_BAR);
512 #endif
513 	if (!sdev->bar[HDA_DSP_BAR]) {
514 		dev_err(sdev->dev, "error: ioremap error\n");
515 		ret = -ENXIO;
516 		goto hdac_bus_unmap;
517 	}
518 
519 	sdev->mmio_bar = HDA_DSP_BAR;
520 	sdev->mailbox_bar = HDA_DSP_BAR;
521 
522 	/* allow 64bit DMA address if supported by H/W */
523 	if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(64))) {
524 		dev_dbg(sdev->dev, "DMA mask is 64 bit\n");
525 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(64));
526 	} else {
527 		dev_dbg(sdev->dev, "DMA mask is 32 bit\n");
528 		dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
529 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
530 	}
531 
532 	/* init streams */
533 	ret = hda_dsp_stream_init(sdev);
534 	if (ret < 0) {
535 		dev_err(sdev->dev, "error: failed to init streams\n");
536 		/*
537 		 * not all errors are due to memory issues, but trying
538 		 * to free everything does not harm
539 		 */
540 		goto free_streams;
541 	}
542 
543 	/*
544 	 * register our IRQ
545 	 * let's try to enable msi firstly
546 	 * if it fails, use legacy interrupt mode
547 	 * TODO: support msi multiple vectors
548 	 */
549 	if (hda_use_msi && pci_alloc_irq_vectors(pci, 1, 1, PCI_IRQ_MSI) > 0) {
550 		dev_info(sdev->dev, "use msi interrupt mode\n");
551 		sdev->ipc_irq = pci_irq_vector(pci, 0);
552 		/* initialised to "false" by kzalloc() */
553 		sdev->msi_enabled = true;
554 	}
555 
556 	if (!sdev->msi_enabled) {
557 		dev_info(sdev->dev, "use legacy interrupt mode\n");
558 		/*
559 		 * in IO-APIC mode, hda->irq and ipc_irq are using the same
560 		 * irq number of pci->irq
561 		 */
562 		sdev->ipc_irq = pci->irq;
563 	}
564 
565 	dev_dbg(sdev->dev, "using IPC IRQ %d\n", sdev->ipc_irq);
566 	ret = request_threaded_irq(sdev->ipc_irq, hda_dsp_interrupt_handler,
567 				   hda_dsp_interrupt_thread,
568 				   IRQF_SHARED, "AudioDSP", sdev);
569 	if (ret < 0) {
570 		dev_err(sdev->dev, "error: failed to register IPC IRQ %d\n",
571 			sdev->ipc_irq);
572 		goto free_irq_vector;
573 	}
574 
575 	pci_set_master(pci);
576 	synchronize_irq(pci->irq);
577 
578 	/*
579 	 * clear TCSEL to clear playback on some HD Audio
580 	 * codecs. PCI TCSEL is defined in the Intel manuals.
581 	 */
582 	snd_sof_pci_update_bits(sdev, PCI_TCSEL, 0x07, 0);
583 
584 	/* init HDA capabilities */
585 	ret = hda_init_caps(sdev);
586 	if (ret < 0)
587 		goto free_ipc_irq;
588 
589 	/* enable ppcap interrupt */
590 	hda_dsp_ctrl_ppcap_enable(sdev, true);
591 	hda_dsp_ctrl_ppcap_int_enable(sdev, true);
592 
593 	/* initialize waitq for code loading */
594 	init_waitqueue_head(&sdev->waitq);
595 
596 	/* set default mailbox offset for FW ready message */
597 	sdev->dsp_box.offset = HDA_DSP_MBOX_UPLINK_OFFSET;
598 
599 	return 0;
600 
601 free_ipc_irq:
602 	free_irq(sdev->ipc_irq, sdev);
603 free_irq_vector:
604 	if (sdev->msi_enabled)
605 		pci_free_irq_vectors(pci);
606 free_streams:
607 	hda_dsp_stream_free(sdev);
608 /* dsp_unmap: not currently used */
609 	iounmap(sdev->bar[HDA_DSP_BAR]);
610 hdac_bus_unmap:
611 	iounmap(bus->remap_addr);
612 	hda_codec_i915_exit(sdev);
613 err:
614 	return ret;
615 }
616 
617 int hda_dsp_remove(struct snd_sof_dev *sdev)
618 {
619 	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
620 	struct hdac_bus *bus = sof_to_bus(sdev);
621 	struct pci_dev *pci = to_pci_dev(sdev->dev);
622 	const struct sof_intel_dsp_desc *chip = hda->desc;
623 
624 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
625 	/* codec removal, invoke bus_device_remove */
626 	snd_hdac_ext_bus_device_remove(bus);
627 #endif
628 
629 	if (!IS_ERR_OR_NULL(hda->dmic_dev))
630 		platform_device_unregister(hda->dmic_dev);
631 
632 	/* disable DSP IRQ */
633 	snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL,
634 				SOF_HDA_PPCTL_PIE, 0);
635 
636 	/* disable CIE and GIE interrupts */
637 	snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL,
638 				SOF_HDA_INT_CTRL_EN | SOF_HDA_INT_GLOBAL_EN, 0);
639 
640 	/* disable cores */
641 	if (chip)
642 		hda_dsp_core_reset_power_down(sdev, chip->cores_mask);
643 
644 	/* disable DSP */
645 	snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL,
646 				SOF_HDA_PPCTL_GPROCEN, 0);
647 
648 	free_irq(sdev->ipc_irq, sdev);
649 	if (sdev->msi_enabled)
650 		pci_free_irq_vectors(pci);
651 
652 	hda_dsp_stream_free(sdev);
653 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
654 	snd_hdac_link_free_all(bus);
655 #endif
656 
657 	iounmap(sdev->bar[HDA_DSP_BAR]);
658 	iounmap(bus->remap_addr);
659 
660 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
661 	snd_hdac_ext_bus_exit(bus);
662 #endif
663 	hda_codec_i915_exit(sdev);
664 
665 	return 0;
666 }
667 
668 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
669 static int hda_generic_machine_select(struct snd_sof_dev *sdev)
670 {
671 	struct hdac_bus *bus = sof_to_bus(sdev);
672 	struct snd_soc_acpi_mach_params *mach_params;
673 	struct snd_soc_acpi_mach *hda_mach;
674 	struct snd_sof_pdata *pdata = sdev->pdata;
675 	const char *tplg_filename;
676 	const char *idisp_str;
677 	const char *dmic_str;
678 	int dmic_num = 0;
679 	int codec_num = 0;
680 	int i;
681 
682 	/* codec detection */
683 	if (!bus->codec_mask) {
684 		dev_info(bus->dev, "no hda codecs found!\n");
685 	} else {
686 		dev_info(bus->dev, "hda codecs found, mask %lx\n",
687 			 bus->codec_mask);
688 
689 		for (i = 0; i < HDA_MAX_CODECS; i++) {
690 			if (bus->codec_mask & (1 << i))
691 				codec_num++;
692 		}
693 
694 		/*
695 		 * If no machine driver is found, then:
696 		 *
697 		 * hda machine driver is used if :
698 		 * 1. there is one HDMI codec and one external HDAudio codec
699 		 * 2. only HDMI codec
700 		 */
701 		if (!pdata->machine && codec_num <= 2 &&
702 		    HDA_IDISP_CODEC(bus->codec_mask)) {
703 			hda_mach = snd_soc_acpi_intel_hda_machines;
704 
705 			/* topology: use the info from hda_machines */
706 			pdata->tplg_filename =
707 				hda_mach->sof_tplg_filename;
708 
709 			dev_info(bus->dev, "using HDA machine driver %s now\n",
710 				 hda_mach->drv_name);
711 
712 			if (codec_num == 1)
713 				idisp_str = "-idisp";
714 			else
715 				idisp_str = "";
716 
717 			/* first check NHLT for DMICs */
718 			dmic_num = check_nhlt_dmic(sdev);
719 
720 			/* allow for module parameter override */
721 			if (hda_dmic_num != -1)
722 				dmic_num = hda_dmic_num;
723 
724 			switch (dmic_num) {
725 			case 2:
726 				dmic_str = "-2ch";
727 				break;
728 			case 4:
729 				dmic_str = "-4ch";
730 				break;
731 			default:
732 				dmic_num = 0;
733 				dmic_str = "";
734 				break;
735 			}
736 
737 			tplg_filename = pdata->tplg_filename;
738 			tplg_filename = fixup_tplg_name(sdev, tplg_filename,
739 							idisp_str, dmic_str);
740 			if (!tplg_filename)
741 				return -EINVAL;
742 
743 			pdata->machine = hda_mach;
744 			pdata->tplg_filename = tplg_filename;
745 		}
746 	}
747 
748 	/* used by hda machine driver to create dai links */
749 	if (pdata->machine) {
750 		mach_params = (struct snd_soc_acpi_mach_params *)
751 			&pdata->machine->mach_params;
752 		mach_params->codec_mask = bus->codec_mask;
753 		mach_params->common_hdmi_codec_drv = hda_codec_use_common_hdmi;
754 		mach_params->dmic_num = dmic_num;
755 	}
756 
757 	return 0;
758 }
759 #else
760 static int hda_generic_machine_select(struct snd_sof_dev *sdev)
761 {
762 	return 0;
763 }
764 #endif
765 
766 void hda_set_mach_params(const struct snd_soc_acpi_mach *mach,
767 			 struct device *dev)
768 {
769 	struct snd_soc_acpi_mach_params *mach_params;
770 
771 	mach_params = (struct snd_soc_acpi_mach_params *)&mach->mach_params;
772 	mach_params->platform = dev_name(dev);
773 }
774 
775 void hda_machine_select(struct snd_sof_dev *sdev)
776 {
777 	struct snd_sof_pdata *sof_pdata = sdev->pdata;
778 	const struct sof_dev_desc *desc = sof_pdata->desc;
779 	struct snd_soc_acpi_mach *mach;
780 
781 	mach = snd_soc_acpi_find_machine(desc->machines);
782 	if (mach) {
783 		sof_pdata->tplg_filename = mach->sof_tplg_filename;
784 		sof_pdata->machine = mach;
785 	}
786 
787 	/*
788 	 * Choose HDA generic machine driver if mach is NULL.
789 	 * Otherwise, set certain mach params.
790 	 */
791 	hda_generic_machine_select(sdev);
792 
793 	if (!sof_pdata->machine)
794 		dev_warn(sdev->dev, "warning: No matching ASoC machine driver found\n");
795 }
796 
797 MODULE_LICENSE("Dual BSD/GPL");
798 MODULE_IMPORT_NS(SND_SOC_SOF_HDA_AUDIO_CODEC);
799 MODULE_IMPORT_NS(SND_SOC_SOF_HDA_AUDIO_CODEC_I915);
800 MODULE_IMPORT_NS(SND_SOC_SOF_XTENSA);
801