xref: /linux/sound/soc/intel/avs/core.c (revision e6a901a00822659181c93c86d8bbc2a17779fddc)
1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright(c) 2021-2022 Intel Corporation. All rights reserved.
4 //
5 // Authors: Cezary Rojewski <cezary.rojewski@intel.com>
6 //          Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
7 //
8 // Special thanks to:
9 //    Krzysztof Hejmowski <krzysztof.hejmowski@intel.com>
10 //    Michal Sienkiewicz <michal.sienkiewicz@intel.com>
11 //    Filip Proborszcz
12 //
13 // for sharing Intel AudioDSP expertise and helping shape the very
14 // foundation of this driver
15 //
16 
17 #include <linux/module.h>
18 #include <linux/pci.h>
19 #include <sound/hda_codec.h>
20 #include <sound/hda_i915.h>
21 #include <sound/hda_register.h>
22 #include <sound/hdaudio.h>
23 #include <sound/hdaudio_ext.h>
24 #include <sound/intel-dsp-config.h>
25 #include <sound/intel-nhlt.h>
26 #include "../../codecs/hda.h"
27 #include "avs.h"
28 #include "cldma.h"
29 #include "messages.h"
30 
31 static u32 pgctl_mask = AZX_PGCTL_LSRMD_MASK;
32 module_param(pgctl_mask, uint, 0444);
33 MODULE_PARM_DESC(pgctl_mask, "PCI PGCTL policy override");
34 
35 static u32 cgctl_mask = AZX_CGCTL_MISCBDCGE_MASK;
36 module_param(cgctl_mask, uint, 0444);
37 MODULE_PARM_DESC(cgctl_mask, "PCI CGCTL policy override");
38 
39 static void
40 avs_hda_update_config_dword(struct hdac_bus *bus, u32 reg, u32 mask, u32 value)
41 {
42 	struct pci_dev *pci = to_pci_dev(bus->dev);
43 	u32 data;
44 
45 	pci_read_config_dword(pci, reg, &data);
46 	data &= ~mask;
47 	data |= (value & mask);
48 	pci_write_config_dword(pci, reg, data);
49 }
50 
51 void avs_hda_power_gating_enable(struct avs_dev *adev, bool enable)
52 {
53 	u32 value = enable ? 0 : pgctl_mask;
54 
55 	avs_hda_update_config_dword(&adev->base.core, AZX_PCIREG_PGCTL, pgctl_mask, value);
56 }
57 
58 static void avs_hdac_clock_gating_enable(struct hdac_bus *bus, bool enable)
59 {
60 	u32 value = enable ? cgctl_mask : 0;
61 
62 	avs_hda_update_config_dword(bus, AZX_PCIREG_CGCTL, cgctl_mask, value);
63 }
64 
65 void avs_hda_clock_gating_enable(struct avs_dev *adev, bool enable)
66 {
67 	avs_hdac_clock_gating_enable(&adev->base.core, enable);
68 }
69 
70 void avs_hda_l1sen_enable(struct avs_dev *adev, bool enable)
71 {
72 	if (enable) {
73 		if (atomic_inc_and_test(&adev->l1sen_counter))
74 			snd_hdac_chip_updatel(&adev->base.core, VS_EM2, AZX_VS_EM2_L1SEN,
75 					      AZX_VS_EM2_L1SEN);
76 	} else {
77 		if (atomic_dec_return(&adev->l1sen_counter) == -1)
78 			snd_hdac_chip_updatel(&adev->base.core, VS_EM2, AZX_VS_EM2_L1SEN, 0);
79 	}
80 }
81 
82 static int avs_hdac_bus_init_streams(struct hdac_bus *bus)
83 {
84 	unsigned int cp_streams, pb_streams;
85 	unsigned int gcap;
86 
87 	gcap = snd_hdac_chip_readw(bus, GCAP);
88 	cp_streams = (gcap >> 8) & 0x0F;
89 	pb_streams = (gcap >> 12) & 0x0F;
90 	bus->num_streams = cp_streams + pb_streams;
91 
92 	snd_hdac_ext_stream_init_all(bus, 0, cp_streams, SNDRV_PCM_STREAM_CAPTURE);
93 	snd_hdac_ext_stream_init_all(bus, cp_streams, pb_streams, SNDRV_PCM_STREAM_PLAYBACK);
94 
95 	return snd_hdac_bus_alloc_stream_pages(bus);
96 }
97 
98 static bool avs_hdac_bus_init_chip(struct hdac_bus *bus, bool full_reset)
99 {
100 	struct hdac_ext_link *hlink;
101 	bool ret;
102 
103 	avs_hdac_clock_gating_enable(bus, false);
104 	ret = snd_hdac_bus_init_chip(bus, full_reset);
105 
106 	/* Reset stream-to-link mapping */
107 	list_for_each_entry(hlink, &bus->hlink_list, list)
108 		writel(0, hlink->ml_addr + AZX_REG_ML_LOSIDV);
109 
110 	avs_hdac_clock_gating_enable(bus, true);
111 
112 	/* Set DUM bit to address incorrect position reporting for capture
113 	 * streams. In order to do so, CTRL needs to be out of reset state
114 	 */
115 	snd_hdac_chip_updatel(bus, VS_EM2, AZX_VS_EM2_DUM, AZX_VS_EM2_DUM);
116 
117 	return ret;
118 }
119 
120 static int probe_codec(struct hdac_bus *bus, int addr)
121 {
122 	struct hda_codec *codec;
123 	unsigned int cmd = (addr << 28) | (AC_NODE_ROOT << 20) |
124 			   (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
125 	unsigned int res = -1;
126 	int ret;
127 
128 	mutex_lock(&bus->cmd_mutex);
129 	snd_hdac_bus_send_cmd(bus, cmd);
130 	snd_hdac_bus_get_response(bus, addr, &res);
131 	mutex_unlock(&bus->cmd_mutex);
132 	if (res == -1)
133 		return -EIO;
134 
135 	dev_dbg(bus->dev, "codec #%d probed OK: 0x%x\n", addr, res);
136 
137 	codec = snd_hda_codec_device_init(to_hda_bus(bus), addr, "hdaudioB%dD%d", bus->idx, addr);
138 	if (IS_ERR(codec)) {
139 		dev_err(bus->dev, "init codec failed: %ld\n", PTR_ERR(codec));
140 		return PTR_ERR(codec);
141 	}
142 	/*
143 	 * Allow avs_core suspend by forcing suspended state on all
144 	 * of its codec child devices. Component interested in
145 	 * dealing with hda codecs directly takes pm responsibilities
146 	 */
147 	pm_runtime_set_suspended(hda_codec_dev(codec));
148 
149 	/* configure effectively creates new ASoC component */
150 	ret = snd_hda_codec_configure(codec);
151 	if (ret < 0) {
152 		dev_warn(bus->dev, "failed to config codec #%d: %d\n", addr, ret);
153 		return ret;
154 	}
155 
156 	return 0;
157 }
158 
159 static void avs_hdac_bus_probe_codecs(struct hdac_bus *bus)
160 {
161 	int ret, c;
162 
163 	/* First try to probe all given codec slots */
164 	for (c = 0; c < HDA_MAX_CODECS; c++) {
165 		if (!(bus->codec_mask & BIT(c)))
166 			continue;
167 
168 		ret = probe_codec(bus, c);
169 		/* Ignore codecs with no supporting driver. */
170 		if (!ret || ret == -ENODEV)
171 			continue;
172 
173 		/*
174 		 * Some BIOSen give you wrong codec addresses
175 		 * that don't exist
176 		 */
177 		dev_warn(bus->dev, "Codec #%d probe error; disabling it...\n", c);
178 		bus->codec_mask &= ~BIT(c);
179 		/*
180 		 * More badly, accessing to a non-existing
181 		 * codec often screws up the controller bus,
182 		 * and disturbs the further communications.
183 		 * Thus if an error occurs during probing,
184 		 * better to reset the controller bus to get
185 		 * back to the sanity state.
186 		 */
187 		snd_hdac_bus_stop_chip(bus);
188 		avs_hdac_bus_init_chip(bus, true);
189 	}
190 }
191 
192 static void avs_hda_probe_work(struct work_struct *work)
193 {
194 	struct avs_dev *adev = container_of(work, struct avs_dev, probe_work);
195 	struct hdac_bus *bus = &adev->base.core;
196 	struct hdac_ext_link *hlink;
197 	int ret;
198 
199 	pm_runtime_set_active(bus->dev); /* clear runtime_error flag */
200 
201 	snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, true);
202 	avs_hdac_bus_init_chip(bus, true);
203 	avs_hdac_bus_probe_codecs(bus);
204 	snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
205 
206 	/* with all codecs probed, links can be powered down */
207 	list_for_each_entry(hlink, &bus->hlink_list, list)
208 		snd_hdac_ext_bus_link_put(bus, hlink);
209 
210 	snd_hdac_ext_bus_ppcap_enable(bus, true);
211 	snd_hdac_ext_bus_ppcap_int_enable(bus, true);
212 
213 	ret = avs_dsp_first_boot_firmware(adev);
214 	if (ret < 0)
215 		return;
216 
217 	adev->nhlt = intel_nhlt_init(adev->dev);
218 	if (!adev->nhlt)
219 		dev_info(bus->dev, "platform has no NHLT\n");
220 	avs_debugfs_init(adev);
221 
222 	avs_register_all_boards(adev);
223 
224 	/* configure PM */
225 	pm_runtime_set_autosuspend_delay(bus->dev, 2000);
226 	pm_runtime_use_autosuspend(bus->dev);
227 	pm_runtime_mark_last_busy(bus->dev);
228 	pm_runtime_put_autosuspend(bus->dev);
229 	pm_runtime_allow(bus->dev);
230 }
231 
232 static void hdac_stream_update_pos(struct hdac_stream *stream, u64 buffer_size)
233 {
234 	u64 prev_pos, pos, num_bytes;
235 
236 	div64_u64_rem(stream->curr_pos, buffer_size, &prev_pos);
237 	pos = snd_hdac_stream_get_pos_posbuf(stream);
238 
239 	if (pos < prev_pos)
240 		num_bytes = (buffer_size - prev_pos) +  pos;
241 	else
242 		num_bytes = pos - prev_pos;
243 
244 	stream->curr_pos += num_bytes;
245 }
246 
247 /* called from IRQ */
248 static void hdac_update_stream(struct hdac_bus *bus, struct hdac_stream *stream)
249 {
250 	if (stream->substream) {
251 		snd_pcm_period_elapsed(stream->substream);
252 	} else if (stream->cstream) {
253 		u64 buffer_size = stream->cstream->runtime->buffer_size;
254 
255 		hdac_stream_update_pos(stream, buffer_size);
256 		snd_compr_fragment_elapsed(stream->cstream);
257 	}
258 }
259 
260 static irqreturn_t hdac_bus_irq_handler(int irq, void *context)
261 {
262 	struct hdac_bus *bus = context;
263 	u32 mask, int_enable;
264 	u32 status;
265 	int ret = IRQ_NONE;
266 
267 	if (!pm_runtime_active(bus->dev))
268 		return ret;
269 
270 	spin_lock(&bus->reg_lock);
271 
272 	status = snd_hdac_chip_readl(bus, INTSTS);
273 	if (status == 0 || status == UINT_MAX) {
274 		spin_unlock(&bus->reg_lock);
275 		return ret;
276 	}
277 
278 	/* clear rirb int */
279 	status = snd_hdac_chip_readb(bus, RIRBSTS);
280 	if (status & RIRB_INT_MASK) {
281 		if (status & RIRB_INT_RESPONSE)
282 			snd_hdac_bus_update_rirb(bus);
283 		snd_hdac_chip_writeb(bus, RIRBSTS, RIRB_INT_MASK);
284 	}
285 
286 	mask = (0x1 << bus->num_streams) - 1;
287 
288 	status = snd_hdac_chip_readl(bus, INTSTS);
289 	status &= mask;
290 	if (status) {
291 		/* Disable stream interrupts; Re-enable in bottom half */
292 		int_enable = snd_hdac_chip_readl(bus, INTCTL);
293 		snd_hdac_chip_writel(bus, INTCTL, (int_enable & (~mask)));
294 		ret = IRQ_WAKE_THREAD;
295 	} else {
296 		ret = IRQ_HANDLED;
297 	}
298 
299 	spin_unlock(&bus->reg_lock);
300 	return ret;
301 }
302 
303 static irqreturn_t hdac_bus_irq_thread(int irq, void *context)
304 {
305 	struct hdac_bus *bus = context;
306 	u32 status;
307 	u32 int_enable;
308 	u32 mask;
309 	unsigned long flags;
310 
311 	status = snd_hdac_chip_readl(bus, INTSTS);
312 
313 	snd_hdac_bus_handle_stream_irq(bus, status, hdac_update_stream);
314 
315 	/* Re-enable stream interrupts */
316 	mask = (0x1 << bus->num_streams) - 1;
317 	spin_lock_irqsave(&bus->reg_lock, flags);
318 	int_enable = snd_hdac_chip_readl(bus, INTCTL);
319 	snd_hdac_chip_writel(bus, INTCTL, (int_enable | mask));
320 	spin_unlock_irqrestore(&bus->reg_lock, flags);
321 
322 	return IRQ_HANDLED;
323 }
324 
325 static irqreturn_t avs_dsp_irq_handler(int irq, void *dev_id)
326 {
327 	struct avs_dev *adev = dev_id;
328 
329 	return avs_dsp_op(adev, irq_handler);
330 }
331 
332 static irqreturn_t avs_dsp_irq_thread(int irq, void *dev_id)
333 {
334 	struct avs_dev *adev = dev_id;
335 
336 	return avs_dsp_op(adev, irq_thread);
337 }
338 
339 static int avs_hdac_acquire_irq(struct avs_dev *adev)
340 {
341 	struct hdac_bus *bus = &adev->base.core;
342 	struct pci_dev *pci = to_pci_dev(bus->dev);
343 	int ret;
344 
345 	/* request one and check that we only got one interrupt */
346 	ret = pci_alloc_irq_vectors(pci, 1, 1, PCI_IRQ_MSI | PCI_IRQ_LEGACY);
347 	if (ret != 1) {
348 		dev_err(adev->dev, "Failed to allocate IRQ vector: %d\n", ret);
349 		return ret;
350 	}
351 
352 	ret = pci_request_irq(pci, 0, hdac_bus_irq_handler, hdac_bus_irq_thread, bus,
353 			      KBUILD_MODNAME);
354 	if (ret < 0) {
355 		dev_err(adev->dev, "Failed to request stream IRQ handler: %d\n", ret);
356 		goto free_vector;
357 	}
358 
359 	ret = pci_request_irq(pci, 0, avs_dsp_irq_handler, avs_dsp_irq_thread, adev,
360 			      KBUILD_MODNAME);
361 	if (ret < 0) {
362 		dev_err(adev->dev, "Failed to request IPC IRQ handler: %d\n", ret);
363 		goto free_stream_irq;
364 	}
365 
366 	return 0;
367 
368 free_stream_irq:
369 	pci_free_irq(pci, 0, bus);
370 free_vector:
371 	pci_free_irq_vectors(pci);
372 	return ret;
373 }
374 
375 static int avs_bus_init(struct avs_dev *adev, struct pci_dev *pci, const struct pci_device_id *id)
376 {
377 	struct hda_bus *bus = &adev->base;
378 	struct avs_ipc *ipc;
379 	struct device *dev = &pci->dev;
380 	int ret;
381 
382 	ret = snd_hdac_ext_bus_init(&bus->core, dev, NULL, &soc_hda_ext_bus_ops);
383 	if (ret < 0)
384 		return ret;
385 
386 	bus->core.use_posbuf = 1;
387 	bus->core.bdl_pos_adj = 0;
388 	bus->core.sync_write = 1;
389 	bus->pci = pci;
390 	bus->mixer_assigned = -1;
391 	mutex_init(&bus->prepare_mutex);
392 
393 	ipc = devm_kzalloc(dev, sizeof(*ipc), GFP_KERNEL);
394 	if (!ipc)
395 		return -ENOMEM;
396 	ret = avs_ipc_init(ipc, dev);
397 	if (ret < 0)
398 		return ret;
399 
400 	adev->modcfg_buf = devm_kzalloc(dev, AVS_MAILBOX_SIZE, GFP_KERNEL);
401 	if (!adev->modcfg_buf)
402 		return -ENOMEM;
403 
404 	adev->dev = dev;
405 	adev->spec = (const struct avs_spec *)id->driver_data;
406 	adev->ipc = ipc;
407 	adev->hw_cfg.dsp_cores = hweight_long(AVS_MAIN_CORE_MASK);
408 	INIT_WORK(&adev->probe_work, avs_hda_probe_work);
409 	INIT_LIST_HEAD(&adev->comp_list);
410 	INIT_LIST_HEAD(&adev->path_list);
411 	INIT_LIST_HEAD(&adev->fw_list);
412 	init_completion(&adev->fw_ready);
413 	spin_lock_init(&adev->path_list_lock);
414 	mutex_init(&adev->modres_mutex);
415 	mutex_init(&adev->comp_list_mutex);
416 	mutex_init(&adev->path_mutex);
417 
418 	return 0;
419 }
420 
421 static int avs_pci_probe(struct pci_dev *pci, const struct pci_device_id *id)
422 {
423 	struct hdac_bus *bus;
424 	struct avs_dev *adev;
425 	struct device *dev = &pci->dev;
426 	int ret;
427 
428 	ret = snd_intel_dsp_driver_probe(pci);
429 	if (ret != SND_INTEL_DSP_DRIVER_ANY && ret != SND_INTEL_DSP_DRIVER_AVS)
430 		return -ENODEV;
431 
432 	ret = pcim_enable_device(pci);
433 	if (ret < 0)
434 		return ret;
435 
436 	adev = devm_kzalloc(dev, sizeof(*adev), GFP_KERNEL);
437 	if (!adev)
438 		return -ENOMEM;
439 	ret = avs_bus_init(adev, pci, id);
440 	if (ret < 0) {
441 		dev_err(dev, "failed to init avs bus: %d\n", ret);
442 		return ret;
443 	}
444 
445 	ret = pci_request_regions(pci, "AVS HDAudio");
446 	if (ret < 0)
447 		return ret;
448 
449 	bus = &adev->base.core;
450 	bus->addr = pci_resource_start(pci, 0);
451 	bus->remap_addr = pci_ioremap_bar(pci, 0);
452 	if (!bus->remap_addr) {
453 		dev_err(bus->dev, "ioremap error\n");
454 		ret = -ENXIO;
455 		goto err_remap_bar0;
456 	}
457 
458 	adev->dsp_ba = pci_ioremap_bar(pci, 4);
459 	if (!adev->dsp_ba) {
460 		dev_err(bus->dev, "ioremap error\n");
461 		ret = -ENXIO;
462 		goto err_remap_bar4;
463 	}
464 
465 	snd_hdac_bus_parse_capabilities(bus);
466 	if (bus->mlcap)
467 		snd_hdac_ext_bus_get_ml_capabilities(bus);
468 
469 	if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)))
470 		dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
471 	dma_set_max_seg_size(dev, UINT_MAX);
472 
473 	ret = avs_hdac_bus_init_streams(bus);
474 	if (ret < 0) {
475 		dev_err(dev, "failed to init streams: %d\n", ret);
476 		goto err_init_streams;
477 	}
478 
479 	ret = avs_hdac_acquire_irq(adev);
480 	if (ret < 0) {
481 		dev_err(bus->dev, "failed to acquire irq: %d\n", ret);
482 		goto err_acquire_irq;
483 	}
484 
485 	pci_set_master(pci);
486 	pci_set_drvdata(pci, bus);
487 	device_disable_async_suspend(dev);
488 
489 	ret = snd_hdac_i915_init(bus);
490 	if (ret == -EPROBE_DEFER)
491 		goto err_i915_init;
492 	else if (ret < 0)
493 		dev_info(bus->dev, "i915 init unsuccessful: %d\n", ret);
494 
495 	schedule_work(&adev->probe_work);
496 
497 	return 0;
498 
499 err_i915_init:
500 	pci_free_irq(pci, 0, adev);
501 	pci_free_irq(pci, 0, bus);
502 	pci_free_irq_vectors(pci);
503 	pci_clear_master(pci);
504 	pci_set_drvdata(pci, NULL);
505 err_acquire_irq:
506 	snd_hdac_bus_free_stream_pages(bus);
507 	snd_hdac_ext_stream_free_all(bus);
508 err_init_streams:
509 	iounmap(adev->dsp_ba);
510 err_remap_bar4:
511 	iounmap(bus->remap_addr);
512 err_remap_bar0:
513 	pci_release_regions(pci);
514 	return ret;
515 }
516 
517 static void avs_pci_shutdown(struct pci_dev *pci)
518 {
519 	struct hdac_bus *bus = pci_get_drvdata(pci);
520 	struct avs_dev *adev = hdac_to_avs(bus);
521 
522 	cancel_work_sync(&adev->probe_work);
523 	avs_ipc_block(adev->ipc);
524 
525 	snd_hdac_stop_streams(bus);
526 	avs_dsp_op(adev, int_control, false);
527 	snd_hdac_ext_bus_ppcap_int_enable(bus, false);
528 	snd_hdac_ext_bus_link_power_down_all(bus);
529 
530 	snd_hdac_bus_stop_chip(bus);
531 	snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
532 
533 	if (avs_platattr_test(adev, CLDMA))
534 		pci_free_irq(pci, 0, &code_loader);
535 	pci_free_irq(pci, 0, adev);
536 	pci_free_irq(pci, 0, bus);
537 	pci_free_irq_vectors(pci);
538 }
539 
540 static void avs_pci_remove(struct pci_dev *pci)
541 {
542 	struct hdac_device *hdev, *save;
543 	struct hdac_bus *bus = pci_get_drvdata(pci);
544 	struct avs_dev *adev = hdac_to_avs(bus);
545 
546 	cancel_work_sync(&adev->probe_work);
547 	avs_ipc_block(adev->ipc);
548 
549 	avs_unregister_all_boards(adev);
550 
551 	avs_debugfs_exit(adev);
552 	if (adev->nhlt)
553 		intel_nhlt_free(adev->nhlt);
554 
555 	if (avs_platattr_test(adev, CLDMA))
556 		hda_cldma_free(&code_loader);
557 
558 	snd_hdac_stop_streams_and_chip(bus);
559 	avs_dsp_op(adev, int_control, false);
560 	snd_hdac_ext_bus_ppcap_int_enable(bus, false);
561 
562 	/* it is safe to remove all codecs from the system now */
563 	list_for_each_entry_safe(hdev, save, &bus->codec_list, list)
564 		snd_hda_codec_unregister(hdac_to_hda_codec(hdev));
565 
566 	snd_hdac_bus_free_stream_pages(bus);
567 	snd_hdac_ext_stream_free_all(bus);
568 	/* reverse ml_capabilities */
569 	snd_hdac_ext_link_free_all(bus);
570 	snd_hdac_ext_bus_exit(bus);
571 
572 	avs_dsp_core_disable(adev, GENMASK(adev->hw_cfg.dsp_cores - 1, 0));
573 	snd_hdac_ext_bus_ppcap_enable(bus, false);
574 
575 	/* snd_hdac_stop_streams_and_chip does that already? */
576 	snd_hdac_bus_stop_chip(bus);
577 	snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
578 	if (bus->audio_component)
579 		snd_hdac_i915_exit(bus);
580 
581 	avs_module_info_free(adev);
582 	pci_free_irq(pci, 0, adev);
583 	pci_free_irq(pci, 0, bus);
584 	pci_free_irq_vectors(pci);
585 	iounmap(bus->remap_addr);
586 	iounmap(adev->dsp_ba);
587 	pci_release_regions(pci);
588 
589 	/* Firmware is not needed anymore */
590 	avs_release_firmwares(adev);
591 
592 	/* pm_runtime_forbid() can rpm_resume() which we do not want */
593 	pm_runtime_disable(&pci->dev);
594 	pm_runtime_forbid(&pci->dev);
595 	pm_runtime_enable(&pci->dev);
596 	pm_runtime_get_noresume(&pci->dev);
597 }
598 
599 static int avs_suspend_standby(struct avs_dev *adev)
600 {
601 	struct hdac_bus *bus = &adev->base.core;
602 	struct pci_dev *pci = adev->base.pci;
603 
604 	if (bus->cmd_dma_state)
605 		snd_hdac_bus_stop_cmd_io(bus);
606 
607 	snd_hdac_ext_bus_link_power_down_all(bus);
608 
609 	enable_irq_wake(pci->irq);
610 	pci_save_state(pci);
611 
612 	return 0;
613 }
614 
615 static int __maybe_unused avs_suspend_common(struct avs_dev *adev, bool low_power)
616 {
617 	struct hdac_bus *bus = &adev->base.core;
618 	int ret;
619 
620 	flush_work(&adev->probe_work);
621 	if (low_power && adev->num_lp_paths)
622 		return avs_suspend_standby(adev);
623 
624 	snd_hdac_ext_bus_link_power_down_all(bus);
625 
626 	ret = avs_ipc_set_dx(adev, AVS_MAIN_CORE_MASK, false);
627 	/*
628 	 * pm_runtime is blocked on DSP failure but system-wide suspend is not.
629 	 * Do not block entire system from suspending if that's the case.
630 	 */
631 	if (ret && ret != -EPERM) {
632 		dev_err(adev->dev, "set dx failed: %d\n", ret);
633 		return AVS_IPC_RET(ret);
634 	}
635 
636 	avs_ipc_block(adev->ipc);
637 	avs_dsp_op(adev, int_control, false);
638 	snd_hdac_ext_bus_ppcap_int_enable(bus, false);
639 
640 	ret = avs_dsp_core_disable(adev, AVS_MAIN_CORE_MASK);
641 	if (ret < 0) {
642 		dev_err(adev->dev, "core_mask %ld disable failed: %d\n", AVS_MAIN_CORE_MASK, ret);
643 		return ret;
644 	}
645 
646 	snd_hdac_ext_bus_ppcap_enable(bus, false);
647 	/* disable LP SRAM retention */
648 	avs_hda_power_gating_enable(adev, false);
649 	snd_hdac_bus_stop_chip(bus);
650 	/* disable CG when putting controller to reset */
651 	avs_hdac_clock_gating_enable(bus, false);
652 	snd_hdac_bus_enter_link_reset(bus);
653 	avs_hdac_clock_gating_enable(bus, true);
654 
655 	snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
656 
657 	return 0;
658 }
659 
660 static int avs_resume_standby(struct avs_dev *adev)
661 {
662 	struct hdac_bus *bus = &adev->base.core;
663 	struct pci_dev *pci = adev->base.pci;
664 
665 	pci_restore_state(pci);
666 	disable_irq_wake(pci->irq);
667 
668 	snd_hdac_ext_bus_link_power_up_all(bus);
669 
670 	if (bus->cmd_dma_state)
671 		snd_hdac_bus_init_cmd_io(bus);
672 
673 	return 0;
674 }
675 
676 static int __maybe_unused avs_resume_common(struct avs_dev *adev, bool low_power, bool purge)
677 {
678 	struct hdac_bus *bus = &adev->base.core;
679 	int ret;
680 
681 	if (low_power && adev->num_lp_paths)
682 		return avs_resume_standby(adev);
683 
684 	snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, true);
685 	avs_hdac_bus_init_chip(bus, true);
686 
687 	snd_hdac_ext_bus_ppcap_enable(bus, true);
688 	snd_hdac_ext_bus_ppcap_int_enable(bus, true);
689 
690 	ret = avs_dsp_boot_firmware(adev, purge);
691 	if (ret < 0) {
692 		dev_err(adev->dev, "firmware boot failed: %d\n", ret);
693 		return ret;
694 	}
695 
696 	return 0;
697 }
698 
699 static int __maybe_unused avs_suspend(struct device *dev)
700 {
701 	return avs_suspend_common(to_avs_dev(dev), true);
702 }
703 
704 static int __maybe_unused avs_resume(struct device *dev)
705 {
706 	return avs_resume_common(to_avs_dev(dev), true, true);
707 }
708 
709 static int __maybe_unused avs_runtime_suspend(struct device *dev)
710 {
711 	return avs_suspend_common(to_avs_dev(dev), true);
712 }
713 
714 static int __maybe_unused avs_runtime_resume(struct device *dev)
715 {
716 	return avs_resume_common(to_avs_dev(dev), true, false);
717 }
718 
719 static int __maybe_unused avs_freeze(struct device *dev)
720 {
721 	return avs_suspend_common(to_avs_dev(dev), false);
722 }
723 static int __maybe_unused avs_thaw(struct device *dev)
724 {
725 	return avs_resume_common(to_avs_dev(dev), false, true);
726 }
727 
728 static int __maybe_unused avs_poweroff(struct device *dev)
729 {
730 	return avs_suspend_common(to_avs_dev(dev), false);
731 }
732 
733 static int __maybe_unused avs_restore(struct device *dev)
734 {
735 	return avs_resume_common(to_avs_dev(dev), false, true);
736 }
737 
738 static const struct dev_pm_ops avs_dev_pm = {
739 	.suspend = avs_suspend,
740 	.resume = avs_resume,
741 	.freeze = avs_freeze,
742 	.thaw = avs_thaw,
743 	.poweroff = avs_poweroff,
744 	.restore = avs_restore,
745 	SET_RUNTIME_PM_OPS(avs_runtime_suspend, avs_runtime_resume, NULL)
746 };
747 
748 static const struct avs_sram_spec skl_sram_spec = {
749 	.base_offset = SKL_ADSP_SRAM_BASE_OFFSET,
750 	.window_size = SKL_ADSP_SRAM_WINDOW_SIZE,
751 	.rom_status_offset = SKL_ADSP_SRAM_BASE_OFFSET,
752 };
753 
754 static const struct avs_sram_spec apl_sram_spec = {
755 	.base_offset = APL_ADSP_SRAM_BASE_OFFSET,
756 	.window_size = APL_ADSP_SRAM_WINDOW_SIZE,
757 	.rom_status_offset = APL_ADSP_SRAM_BASE_OFFSET,
758 };
759 
760 static const struct avs_hipc_spec skl_hipc_spec = {
761 	.req_offset = SKL_ADSP_REG_HIPCI,
762 	.req_ext_offset = SKL_ADSP_REG_HIPCIE,
763 	.req_busy_mask = SKL_ADSP_HIPCI_BUSY,
764 	.ack_offset = SKL_ADSP_REG_HIPCIE,
765 	.ack_done_mask = SKL_ADSP_HIPCIE_DONE,
766 	.rsp_offset = SKL_ADSP_REG_HIPCT,
767 	.rsp_busy_mask = SKL_ADSP_HIPCT_BUSY,
768 	.ctl_offset = SKL_ADSP_REG_HIPCCTL,
769 };
770 
771 static const struct avs_hipc_spec cnl_hipc_spec = {
772 	.req_offset = CNL_ADSP_REG_HIPCIDR,
773 	.req_ext_offset = CNL_ADSP_REG_HIPCIDD,
774 	.req_busy_mask = CNL_ADSP_HIPCIDR_BUSY,
775 	.ack_offset = CNL_ADSP_REG_HIPCIDA,
776 	.ack_done_mask = CNL_ADSP_HIPCIDA_DONE,
777 	.rsp_offset = CNL_ADSP_REG_HIPCTDR,
778 	.rsp_busy_mask = CNL_ADSP_HIPCTDR_BUSY,
779 	.ctl_offset = CNL_ADSP_REG_HIPCCTL,
780 };
781 
782 static const struct avs_spec skl_desc = {
783 	.name = "skl",
784 	.min_fw_version = { 9, 21, 0, 4732 },
785 	.dsp_ops = &avs_skl_dsp_ops,
786 	.core_init_mask = 1,
787 	.attributes = AVS_PLATATTR_CLDMA,
788 	.sram = &skl_sram_spec,
789 	.hipc = &skl_hipc_spec,
790 };
791 
792 static const struct avs_spec apl_desc = {
793 	.name = "apl",
794 	.min_fw_version = { 9, 22, 1, 4323 },
795 	.dsp_ops = &avs_apl_dsp_ops,
796 	.core_init_mask = 3,
797 	.attributes = AVS_PLATATTR_IMR,
798 	.sram = &apl_sram_spec,
799 	.hipc = &skl_hipc_spec,
800 };
801 
802 static const struct avs_spec cnl_desc = {
803 	.name = "cnl",
804 	.min_fw_version = { 10, 23, 0, 5314 },
805 	.dsp_ops = &avs_cnl_dsp_ops,
806 	.core_init_mask = 1,
807 	.attributes = AVS_PLATATTR_IMR,
808 	.sram = &apl_sram_spec,
809 	.hipc = &cnl_hipc_spec,
810 };
811 
812 static const struct avs_spec icl_desc = {
813 	.name = "icl",
814 	.min_fw_version = { 10, 23, 0, 5040 },
815 	.dsp_ops = &avs_icl_dsp_ops,
816 	.core_init_mask = 1,
817 	.attributes = AVS_PLATATTR_IMR,
818 	.sram = &apl_sram_spec,
819 	.hipc = &cnl_hipc_spec,
820 };
821 
822 static const struct avs_spec jsl_desc = {
823 	.name = "jsl",
824 	.min_fw_version = { 10, 26, 0, 5872 },
825 	.dsp_ops = &avs_icl_dsp_ops,
826 	.core_init_mask = 1,
827 	.attributes = AVS_PLATATTR_IMR,
828 	.sram = &apl_sram_spec,
829 	.hipc = &cnl_hipc_spec,
830 };
831 
832 #define AVS_TGL_BASED_SPEC(sname)		\
833 static const struct avs_spec sname##_desc = {	\
834 	.name = #sname,				\
835 	.min_fw_version = { 10,	29, 0, 5646 },	\
836 	.dsp_ops = &avs_tgl_dsp_ops,		\
837 	.core_init_mask = 1,			\
838 	.attributes = AVS_PLATATTR_IMR,		\
839 	.sram = &apl_sram_spec,			\
840 	.hipc = &cnl_hipc_spec,			\
841 }
842 
843 AVS_TGL_BASED_SPEC(lkf);
844 AVS_TGL_BASED_SPEC(tgl);
845 AVS_TGL_BASED_SPEC(ehl);
846 AVS_TGL_BASED_SPEC(adl);
847 AVS_TGL_BASED_SPEC(adl_n);
848 
849 static const struct pci_device_id avs_ids[] = {
850 	{ PCI_DEVICE_DATA(INTEL, HDA_SKL_LP, &skl_desc) },
851 	{ PCI_DEVICE_DATA(INTEL, HDA_SKL, &skl_desc) },
852 	{ PCI_DEVICE_DATA(INTEL, HDA_KBL_LP, &skl_desc) },
853 	{ PCI_DEVICE_DATA(INTEL, HDA_KBL, &skl_desc) },
854 	{ PCI_DEVICE_DATA(INTEL, HDA_KBL_H, &skl_desc) },
855 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_S, &skl_desc) },
856 	{ PCI_DEVICE_DATA(INTEL, HDA_APL, &apl_desc) },
857 	{ PCI_DEVICE_DATA(INTEL, HDA_GML, &apl_desc) },
858 	{ PCI_DEVICE_DATA(INTEL, HDA_CNL_LP,	&cnl_desc) },
859 	{ PCI_DEVICE_DATA(INTEL, HDA_CNL_H,	&cnl_desc) },
860 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_LP,	&cnl_desc) },
861 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_H,	&cnl_desc) },
862 	{ PCI_DEVICE_DATA(INTEL, HDA_RKL_S,	&cnl_desc) },
863 	{ PCI_DEVICE_DATA(INTEL, HDA_ICL_LP,	&icl_desc) },
864 	{ PCI_DEVICE_DATA(INTEL, HDA_ICL_N,	&icl_desc) },
865 	{ PCI_DEVICE_DATA(INTEL, HDA_ICL_H,	&icl_desc) },
866 	{ PCI_DEVICE_DATA(INTEL, HDA_JSL_N,	&jsl_desc) },
867 	{ PCI_DEVICE_DATA(INTEL, HDA_LKF,	&lkf_desc) },
868 	{ PCI_DEVICE_DATA(INTEL, HDA_TGL_LP,	&tgl_desc) },
869 	{ PCI_DEVICE_DATA(INTEL, HDA_TGL_H,	&tgl_desc) },
870 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_R,	&tgl_desc) },
871 	{ PCI_DEVICE_DATA(INTEL, HDA_EHL_0,	&ehl_desc) },
872 	{ PCI_DEVICE_DATA(INTEL, HDA_EHL_3,	&ehl_desc) },
873 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_S,	&adl_desc) },
874 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_P,	&adl_desc) },
875 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_PS,	&adl_desc) },
876 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_M,	&adl_desc) },
877 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_PX,	&adl_desc) },
878 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_N,	&adl_n_desc) },
879 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_S,	&adl_desc) },
880 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_P_0,	&adl_desc) },
881 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_P_1,	&adl_desc) },
882 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_M,	&adl_desc) },
883 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_PX,	&adl_desc) },
884 	{ 0 }
885 };
886 MODULE_DEVICE_TABLE(pci, avs_ids);
887 
888 static struct pci_driver avs_pci_driver = {
889 	.name = KBUILD_MODNAME,
890 	.id_table = avs_ids,
891 	.probe = avs_pci_probe,
892 	.remove = avs_pci_remove,
893 	.shutdown = avs_pci_shutdown,
894 	.dev_groups = avs_attr_groups,
895 	.driver = {
896 		.pm = &avs_dev_pm,
897 	},
898 };
899 module_pci_driver(avs_pci_driver);
900 
901 MODULE_AUTHOR("Cezary Rojewski <cezary.rojewski@intel.com>");
902 MODULE_AUTHOR("Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>");
903 MODULE_DESCRIPTION("Intel cAVS sound driver");
904 MODULE_LICENSE("GPL");
905