xref: /linux/sound/hda/controllers/intel.c (revision 082c192c0dd03f685514c9ce2eb0a80fd28e2175)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *
4  *  hda_intel.c - Implementation of primary alsa driver code base
5  *                for Intel HD Audio.
6  *
7  *  Copyright(c) 2004 Intel Corporation
8  *
9  *  Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
10  *                     PeiSen Hou <pshou@realtek.com.tw>
11  *
12  *  CONTACTS:
13  *
14  *  Matt Jared		matt.jared@intel.com
15  *  Andy Kopp		andy.kopp@intel.com
16  *  Dan Kogan		dan.d.kogan@intel.com
17  *
18  *  CHANGES:
19  *
20  *  2004.12.01	Major rewrite by tiwai, merged the work of pshou
21  */
22 
23 #include <linux/delay.h>
24 #include <linux/interrupt.h>
25 #include <linux/kernel.h>
26 #include <linux/module.h>
27 #include <linux/dma-mapping.h>
28 #include <linux/moduleparam.h>
29 #include <linux/init.h>
30 #include <linux/slab.h>
31 #include <linux/pci.h>
32 #include <linux/mutex.h>
33 #include <linux/io.h>
34 #include <linux/pm_runtime.h>
35 #include <linux/clocksource.h>
36 #include <linux/time.h>
37 #include <linux/completion.h>
38 #include <linux/acpi.h>
39 #include <linux/pgtable.h>
40 #include <linux/dmi.h>
41 
42 #ifdef CONFIG_X86
43 /* for snoop control */
44 #include <asm/set_memory.h>
45 #include <asm/cpufeature.h>
46 #endif
47 #include <sound/core.h>
48 #include <sound/initval.h>
49 #include <sound/hdaudio.h>
50 #include <sound/hda_i915.h>
51 #include <sound/intel-dsp-config.h>
52 #include <linux/vgaarb.h>
53 #include <linux/vga_switcheroo.h>
54 #include <linux/apple-gmux.h>
55 #include <linux/firmware.h>
56 #include <sound/hda_codec.h>
57 #include "intel.h"
58 
59 #define CREATE_TRACE_POINTS
60 #include "intel_trace.h"
61 
62 /* position fix mode */
63 enum {
64 	POS_FIX_AUTO,
65 	POS_FIX_LPIB,
66 	POS_FIX_POSBUF,
67 	POS_FIX_VIACOMBO,
68 	POS_FIX_COMBO,
69 	POS_FIX_SKL,
70 	POS_FIX_FIFO,
71 };
72 
73 /* Defines for ATI HD Audio support in SB450 south bridge */
74 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
75 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
76 
77 /* Defines for Nvidia HDA support */
78 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
79 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
80 #define NVIDIA_HDA_ISTRM_COH          0x4d
81 #define NVIDIA_HDA_OSTRM_COH          0x4c
82 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
83 
84 /* Defines for Intel SCH HDA snoop control */
85 #define INTEL_HDA_CGCTL	 0x48
86 #define INTEL_HDA_CGCTL_MISCBDCGE        (0x1 << 6)
87 #define INTEL_SCH_HDA_DEVC      0x78
88 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
89 
90 /* max number of SDs */
91 /* ICH, ATI and VIA have 4 playback and 4 capture */
92 #define ICH6_NUM_CAPTURE	4
93 #define ICH6_NUM_PLAYBACK	4
94 
95 /* ULI has 6 playback and 5 capture */
96 #define ULI_NUM_CAPTURE		5
97 #define ULI_NUM_PLAYBACK	6
98 
99 /* ATI HDMI may have up to 8 playbacks and 0 capture */
100 #define ATIHDMI_NUM_CAPTURE	0
101 #define ATIHDMI_NUM_PLAYBACK	8
102 
103 
104 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
105 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
106 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
107 static char *model[SNDRV_CARDS];
108 static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
109 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
110 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
111 static int probe_only[SNDRV_CARDS];
112 static int jackpoll_ms[SNDRV_CARDS];
113 static int single_cmd = -1;
114 static int enable_msi = -1;
115 #ifdef CONFIG_SND_HDA_PATCH_LOADER
116 static char *patch[SNDRV_CARDS];
117 #endif
118 #ifdef CONFIG_SND_HDA_INPUT_BEEP
119 static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
120 					CONFIG_SND_HDA_INPUT_BEEP_MODE};
121 #endif
122 static bool dmic_detect = 1;
123 static bool ctl_dev_id = IS_ENABLED(CONFIG_SND_HDA_CTL_DEV_ID) ? 1 : 0;
124 
125 module_param_array(index, int, NULL, 0444);
126 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
127 module_param_array(id, charp, NULL, 0444);
128 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
129 module_param_array(enable, bool, NULL, 0444);
130 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
131 module_param_array(model, charp, NULL, 0444);
132 MODULE_PARM_DESC(model, "Use the given board model.");
133 module_param_array(position_fix, int, NULL, 0444);
134 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
135 		 "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO, 5 = SKL+, 6 = FIFO).");
136 module_param_array(bdl_pos_adj, int, NULL, 0644);
137 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
138 module_param_array(probe_mask, int, NULL, 0444);
139 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
140 module_param_array(probe_only, int, NULL, 0444);
141 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
142 module_param_array(jackpoll_ms, int, NULL, 0444);
143 MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
144 module_param(single_cmd, bint, 0444);
145 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
146 		 "(for debugging only).");
147 module_param(enable_msi, bint, 0444);
148 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
149 #ifdef CONFIG_SND_HDA_PATCH_LOADER
150 module_param_array(patch, charp, NULL, 0444);
151 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
152 #endif
153 #ifdef CONFIG_SND_HDA_INPUT_BEEP
154 module_param_array(beep_mode, bool, NULL, 0444);
155 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
156 			    "(0=off, 1=on) (default=1).");
157 #endif
158 module_param(dmic_detect, bool, 0444);
159 MODULE_PARM_DESC(dmic_detect, "Allow DSP driver selection (bypass this driver) "
160 			     "(0=off, 1=on) (default=1); "
161 		 "deprecated, use snd-intel-dspcfg.dsp_driver option instead");
162 module_param(ctl_dev_id, bool, 0444);
163 MODULE_PARM_DESC(ctl_dev_id, "Use control device identifier (based on codec address).");
164 
165 #ifdef CONFIG_PM
166 static int param_set_xint(const char *val, const struct kernel_param *kp);
167 static const struct kernel_param_ops param_ops_xint = {
168 	.set = param_set_xint,
169 	.get = param_get_int,
170 };
171 #define param_check_xint param_check_int
172 
173 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
174 module_param(power_save, xint, 0644);
175 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
176 		 "(in second, 0 = disable).");
177 
178 static int pm_blacklist = -1;
179 module_param(pm_blacklist, bint, 0644);
180 MODULE_PARM_DESC(pm_blacklist, "Enable power-management denylist");
181 
182 /* reset the HD-audio controller in power save mode.
183  * this may give more power-saving, but will take longer time to
184  * wake up.
185  */
186 static bool power_save_controller = 1;
187 module_param(power_save_controller, bool, 0644);
188 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
189 #else /* CONFIG_PM */
190 #define power_save	0
191 #define pm_blacklist	0
192 #define power_save_controller	false
193 #endif /* CONFIG_PM */
194 
195 static int align_buffer_size = -1;
196 module_param(align_buffer_size, bint, 0644);
197 MODULE_PARM_DESC(align_buffer_size,
198 		"Force buffer and period sizes to be multiple of 128 bytes.");
199 
200 #ifdef CONFIG_X86
201 static int hda_snoop = -1;
202 module_param_named(snoop, hda_snoop, bint, 0444);
203 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
204 #else
205 #define hda_snoop		true
206 #endif
207 
208 
209 MODULE_LICENSE("GPL");
210 MODULE_DESCRIPTION("Intel HDA driver");
211 
212 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
213 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
214 #define SUPPORT_VGA_SWITCHEROO
215 #endif
216 #endif
217 
218 
219 /*
220  */
221 
222 /* driver types */
223 enum {
224 	AZX_DRIVER_ICH,
225 	AZX_DRIVER_PCH,
226 	AZX_DRIVER_SCH,
227 	AZX_DRIVER_SKL,
228 	AZX_DRIVER_HDMI,
229 	AZX_DRIVER_ATI,
230 	AZX_DRIVER_ATIHDMI,
231 	AZX_DRIVER_ATIHDMI_NS,
232 	AZX_DRIVER_GFHDMI,
233 	AZX_DRIVER_VIA,
234 	AZX_DRIVER_SIS,
235 	AZX_DRIVER_ULI,
236 	AZX_DRIVER_NVIDIA,
237 	AZX_DRIVER_TERA,
238 	AZX_DRIVER_CTX,
239 	AZX_DRIVER_CTHDA,
240 	AZX_DRIVER_CMEDIA,
241 	AZX_DRIVER_ZHAOXIN,
242 	AZX_DRIVER_ZHAOXINHDMI,
243 	AZX_DRIVER_LOONGSON,
244 	AZX_DRIVER_GENERIC,
245 	AZX_NUM_DRIVERS, /* keep this as last entry */
246 };
247 
248 #define azx_get_snoop_type(chip) \
249 	(((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
250 #define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
251 
252 /* quirks for old Intel chipsets */
253 #define AZX_DCAPS_INTEL_ICH \
254 	(AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
255 
256 /* quirks for Intel PCH */
257 #define AZX_DCAPS_INTEL_PCH_BASE \
258 	(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
259 	 AZX_DCAPS_SNOOP_TYPE(SCH))
260 
261 /* PCH up to IVB; no runtime PM; bind with i915 gfx */
262 #define AZX_DCAPS_INTEL_PCH_NOPM \
263 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
264 
265 /* PCH for HSW/BDW; with runtime PM */
266 /* no i915 binding for this as HSW/BDW has another controller for HDMI */
267 #define AZX_DCAPS_INTEL_PCH \
268 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)
269 
270 /* HSW HDMI */
271 #define AZX_DCAPS_INTEL_HASWELL \
272 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
273 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
274 	 AZX_DCAPS_SNOOP_TYPE(SCH))
275 
276 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
277 #define AZX_DCAPS_INTEL_BROADWELL \
278 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
279 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
280 	 AZX_DCAPS_SNOOP_TYPE(SCH))
281 
282 #define AZX_DCAPS_INTEL_BAYTRAIL \
283 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
284 
285 #define AZX_DCAPS_INTEL_BRASWELL \
286 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
287 	 AZX_DCAPS_I915_COMPONENT)
288 
289 #define AZX_DCAPS_INTEL_SKYLAKE \
290 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
291 	 AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)
292 
293 #define AZX_DCAPS_INTEL_BROXTON		AZX_DCAPS_INTEL_SKYLAKE
294 
295 #define AZX_DCAPS_INTEL_LNL \
296 	(AZX_DCAPS_INTEL_SKYLAKE | AZX_DCAPS_PIO_COMMANDS)
297 
298 #define AZX_DCAPS_INTEL_NVL \
299 	(AZX_DCAPS_INTEL_LNL & ~AZX_DCAPS_NO_ALIGN_BUFSIZE)
300 
301 /* quirks for ATI SB / AMD Hudson */
302 #define AZX_DCAPS_PRESET_ATI_SB \
303 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB |\
304 	 AZX_DCAPS_SNOOP_TYPE(ATI))
305 
306 /* quirks for ATI/AMD HDMI */
307 #define AZX_DCAPS_PRESET_ATI_HDMI \
308 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB|\
309 	 AZX_DCAPS_NO_MSI64)
310 
311 /* quirks for ATI HDMI with snoop off */
312 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
313 	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
314 
315 /* quirks for AMD SB */
316 #define AZX_DCAPS_PRESET_AMD_SB \
317 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
318 	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME |\
319 	 AZX_DCAPS_RETRY_PROBE)
320 
321 /* quirks for Nvidia */
322 #define AZX_DCAPS_PRESET_NVIDIA \
323 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
324 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
325 
326 #define AZX_DCAPS_PRESET_CTHDA \
327 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
328 	 AZX_DCAPS_NO_64BIT |\
329 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
330 
331 /*
332  * vga_switcheroo support
333  */
334 #ifdef SUPPORT_VGA_SWITCHEROO
335 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
336 #define needs_eld_notify_link(chip)	((chip)->bus.keep_power)
337 #else
338 #define use_vga_switcheroo(chip)	0
339 #define needs_eld_notify_link(chip)	false
340 #endif
341 
342 static const char * const driver_short_names[] = {
343 	[AZX_DRIVER_ICH] = "HDA Intel",
344 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
345 	[AZX_DRIVER_SCH] = "HDA Intel MID",
346 	[AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
347 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
348 	[AZX_DRIVER_ATI] = "HDA ATI SB",
349 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
350 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
351 	[AZX_DRIVER_GFHDMI] = "HDA GF HDMI",
352 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
353 	[AZX_DRIVER_SIS] = "HDA SIS966",
354 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
355 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
356 	[AZX_DRIVER_TERA] = "HDA Teradici",
357 	[AZX_DRIVER_CTX] = "HDA Creative",
358 	[AZX_DRIVER_CTHDA] = "HDA Creative",
359 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
360 	[AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
361 	[AZX_DRIVER_ZHAOXINHDMI] = "HDA Zhaoxin HDMI",
362 	[AZX_DRIVER_LOONGSON] = "HDA Loongson",
363 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
364 };
365 
366 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
367 static void set_default_power_save(struct azx *chip);
368 
369 /*
370  * initialize the PCI registers
371  */
372 /* update bits in a PCI register byte */
373 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
374 			    unsigned char mask, unsigned char val)
375 {
376 	unsigned char data;
377 
378 	pci_read_config_byte(pci, reg, &data);
379 	data &= ~mask;
380 	data |= (val & mask);
381 	pci_write_config_byte(pci, reg, data);
382 }
383 
384 static void azx_init_pci(struct azx *chip)
385 {
386 	int snoop_type = azx_get_snoop_type(chip);
387 
388 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
389 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
390 	 * Ensuring these bits are 0 clears playback static on some HD Audio
391 	 * codecs.
392 	 * The PCI register TCSEL is defined in the Intel manuals.
393 	 */
394 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
395 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
396 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
397 	}
398 
399 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
400 	 * we need to enable snoop.
401 	 */
402 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
403 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
404 			azx_snoop(chip));
405 		update_pci_byte(chip->pci,
406 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
407 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
408 	}
409 
410 	/* For NVIDIA HDA, enable snoop */
411 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
412 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
413 			azx_snoop(chip));
414 		update_pci_byte(chip->pci,
415 				NVIDIA_HDA_TRANSREG_ADDR,
416 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
417 		update_pci_byte(chip->pci,
418 				NVIDIA_HDA_ISTRM_COH,
419 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
420 		update_pci_byte(chip->pci,
421 				NVIDIA_HDA_OSTRM_COH,
422 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
423 	}
424 
425 	/* Enable SCH/PCH snoop if needed */
426 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
427 		unsigned short snoop;
428 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
429 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
430 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
431 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
432 			if (!azx_snoop(chip))
433 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
434 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
435 			pci_read_config_word(chip->pci,
436 				INTEL_SCH_HDA_DEVC, &snoop);
437 		}
438 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
439 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
440 			"Disabled" : "Enabled");
441         }
442 }
443 
444 /*
445  * In BXT-P A0, HD-Audio DMA requests is later than expected,
446  * and makes an audio stream sensitive to system latencies when
447  * 24/32 bits are playing.
448  * Adjusting threshold of DMA fifo to force the DMA request
449  * sooner to improve latency tolerance at the expense of power.
450  */
451 static void bxt_reduce_dma_latency(struct azx *chip)
452 {
453 	u32 val;
454 
455 	val = azx_readl(chip, VS_EM4L);
456 	val &= (0x3 << 20);
457 	azx_writel(chip, VS_EM4L, val);
458 }
459 
460 /*
461  * ML_LCAP bits:
462  *  bit 0: 6 MHz Supported
463  *  bit 1: 12 MHz Supported
464  *  bit 2: 24 MHz Supported
465  *  bit 3: 48 MHz Supported
466  *  bit 4: 96 MHz Supported
467  *  bit 5: 192 MHz Supported
468  */
469 static int intel_get_lctl_scf(struct azx *chip)
470 {
471 	struct hdac_bus *bus = azx_bus(chip);
472 	static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
473 	u32 val, t;
474 	int i;
475 
476 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
477 
478 	for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
479 		t = preferred_bits[i];
480 		if (val & (1 << t))
481 			return t;
482 	}
483 
484 	dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
485 	return 0;
486 }
487 
488 static int intel_ml_lctl_set_power(struct azx *chip, int state)
489 {
490 	struct hdac_bus *bus = azx_bus(chip);
491 	u32 val;
492 	int timeout;
493 
494 	/*
495 	 * Changes to LCTL.SCF are only needed for the first multi-link dealing
496 	 * with external codecs
497 	 */
498 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
499 	val &= ~AZX_ML_LCTL_SPA;
500 	val |= state << AZX_ML_LCTL_SPA_SHIFT;
501 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
502 	/* wait for CPA */
503 	timeout = 50;
504 	while (timeout) {
505 		if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
506 		    AZX_ML_LCTL_CPA) == (state << AZX_ML_LCTL_CPA_SHIFT))
507 			return 0;
508 		timeout--;
509 		udelay(10);
510 	}
511 
512 	return -1;
513 }
514 
515 static void intel_init_lctl(struct azx *chip)
516 {
517 	struct hdac_bus *bus = azx_bus(chip);
518 	u32 val;
519 	int ret;
520 
521 	/* 0. check lctl register value is correct or not */
522 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
523 	/* only perform additional configurations if the SCF is initially based on 6MHz */
524 	if ((val & AZX_ML_LCTL_SCF) != 0)
525 		return;
526 
527 	/*
528 	 * Before operating on SPA, CPA must match SPA.
529 	 * Any deviation may result in undefined behavior.
530 	 */
531 	if (((val & AZX_ML_LCTL_SPA) >> AZX_ML_LCTL_SPA_SHIFT) !=
532 		((val & AZX_ML_LCTL_CPA) >> AZX_ML_LCTL_CPA_SHIFT))
533 		return;
534 
535 	/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
536 	ret = intel_ml_lctl_set_power(chip, 0);
537 	udelay(100);
538 	if (ret)
539 		goto set_spa;
540 
541 	/* 2. update SCF to select an audio clock different from 6MHz */
542 	val &= ~AZX_ML_LCTL_SCF;
543 	val |= intel_get_lctl_scf(chip);
544 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
545 
546 set_spa:
547 	/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
548 	intel_ml_lctl_set_power(chip, 1);
549 	udelay(100);
550 }
551 
552 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
553 {
554 	struct hdac_bus *bus = azx_bus(chip);
555 	struct pci_dev *pci = chip->pci;
556 	u32 val;
557 
558 	snd_hdac_set_codec_wakeup(bus, true);
559 	if (chip->driver_type == AZX_DRIVER_SKL) {
560 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
561 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
562 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
563 	}
564 	azx_init_chip(chip, full_reset);
565 	if (chip->driver_type == AZX_DRIVER_SKL) {
566 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
567 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
568 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
569 	}
570 
571 	snd_hdac_set_codec_wakeup(bus, false);
572 
573 	/* reduce dma latency to avoid noise */
574 	if (HDA_CONTROLLER_IS_APL(pci))
575 		bxt_reduce_dma_latency(chip);
576 
577 	if (bus->mlcap != NULL)
578 		intel_init_lctl(chip);
579 }
580 
581 /* calculate runtime delay from LPIB */
582 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
583 				   unsigned int pos)
584 {
585 	struct snd_pcm_substream *substream = azx_dev->core.substream;
586 	int stream = substream->stream;
587 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
588 	int delay;
589 
590 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
591 		delay = pos - lpib_pos;
592 	else
593 		delay = lpib_pos - pos;
594 	if (delay < 0) {
595 		if (delay >= azx_dev->core.delay_negative_threshold)
596 			delay = 0;
597 		else
598 			delay += azx_dev->core.bufsize;
599 	}
600 
601 	if (delay >= azx_dev->core.period_bytes) {
602 		dev_info(chip->card->dev,
603 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
604 			 delay, azx_dev->core.period_bytes);
605 		delay = 0;
606 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
607 		chip->get_delay[stream] = NULL;
608 	}
609 
610 	return bytes_to_frames(substream->runtime, delay);
611 }
612 
613 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
614 
615 /* called from IRQ */
616 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
617 {
618 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
619 	int ok;
620 
621 	ok = azx_position_ok(chip, azx_dev);
622 	if (ok == 1) {
623 		azx_dev->irq_pending = 0;
624 		return ok;
625 	} else if (ok == 0) {
626 		/* bogus IRQ, process it later */
627 		azx_dev->irq_pending = 1;
628 		schedule_work(&hda->irq_pending_work);
629 	}
630 	return 0;
631 }
632 
633 #define display_power(chip, enable) \
634 	snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
635 
636 /*
637  * Check whether the current DMA position is acceptable for updating
638  * periods.  Returns non-zero if it's OK.
639  *
640  * Many HD-audio controllers appear pretty inaccurate about
641  * the update-IRQ timing.  The IRQ is issued before actually the
642  * data is processed.  So, we need to process it afterwords in a
643  * workqueue.
644  *
645  * Returns 1 if OK to proceed, 0 for delay handling, -1 for skipping update
646  */
647 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
648 {
649 	struct snd_pcm_substream *substream = azx_dev->core.substream;
650 	struct snd_pcm_runtime *runtime = substream->runtime;
651 	int stream = substream->stream;
652 	u32 wallclk;
653 	unsigned int pos;
654 	snd_pcm_uframes_t hwptr, target;
655 
656 	/*
657 	 * The value of the WALLCLK register is always 0
658 	 * on the Loongson controller, so we return directly.
659 	 */
660 	if (chip->driver_type == AZX_DRIVER_LOONGSON)
661 		return 1;
662 
663 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
664 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
665 		return -1;	/* bogus (too early) interrupt */
666 
667 	if (chip->get_position[stream])
668 		pos = chip->get_position[stream](chip, azx_dev);
669 	else { /* use the position buffer as default */
670 		pos = azx_get_pos_posbuf(chip, azx_dev);
671 		if (!pos || pos == (u32)-1) {
672 			dev_info(chip->card->dev,
673 				 "Invalid position buffer, using LPIB read method instead.\n");
674 			chip->get_position[stream] = azx_get_pos_lpib;
675 			if (chip->get_position[0] == azx_get_pos_lpib &&
676 			    chip->get_position[1] == azx_get_pos_lpib)
677 				azx_bus(chip)->use_posbuf = false;
678 			pos = azx_get_pos_lpib(chip, azx_dev);
679 			chip->get_delay[stream] = NULL;
680 		} else {
681 			chip->get_position[stream] = azx_get_pos_posbuf;
682 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
683 				chip->get_delay[stream] = azx_get_delay_from_lpib;
684 		}
685 	}
686 
687 	if (pos >= azx_dev->core.bufsize)
688 		pos = 0;
689 
690 	if (WARN_ONCE(!azx_dev->core.period_bytes,
691 		      "hda-intel: zero azx_dev->period_bytes"))
692 		return -1; /* this shouldn't happen! */
693 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
694 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
695 		/* NG - it's below the first next period boundary */
696 		return chip->bdl_pos_adj ? 0 : -1;
697 	azx_dev->core.start_wallclk += wallclk;
698 
699 	if (azx_dev->core.no_period_wakeup)
700 		return 1; /* OK, no need to check period boundary */
701 
702 	if (runtime->hw_ptr_base != runtime->hw_ptr_interrupt)
703 		return 1; /* OK, already in hwptr updating process */
704 
705 	/* check whether the period gets really elapsed */
706 	pos = bytes_to_frames(runtime, pos);
707 	hwptr = runtime->hw_ptr_base + pos;
708 	if (hwptr < runtime->status->hw_ptr)
709 		hwptr += runtime->buffer_size;
710 	target = runtime->hw_ptr_interrupt + runtime->period_size;
711 	if (hwptr < target) {
712 		/* too early wakeup, process it later */
713 		return chip->bdl_pos_adj ? 0 : -1;
714 	}
715 
716 	return 1; /* OK, it's fine */
717 }
718 
719 /*
720  * The work for pending PCM period updates.
721  */
722 static void azx_irq_pending_work(struct work_struct *work)
723 {
724 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
725 	struct azx *chip = &hda->chip;
726 	struct hdac_bus *bus = azx_bus(chip);
727 	struct hdac_stream *s;
728 	int pending, ok;
729 
730 	if (!hda->irq_pending_warned) {
731 		dev_info(chip->card->dev,
732 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
733 			 chip->card->number);
734 		hda->irq_pending_warned = 1;
735 	}
736 
737 	for (;;) {
738 		pending = 0;
739 		spin_lock_irq(&bus->reg_lock);
740 		list_for_each_entry(s, &bus->stream_list, list) {
741 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
742 			if (!azx_dev->irq_pending ||
743 			    !s->substream ||
744 			    !s->running)
745 				continue;
746 			ok = azx_position_ok(chip, azx_dev);
747 			if (ok > 0) {
748 				azx_dev->irq_pending = 0;
749 				spin_unlock(&bus->reg_lock);
750 				snd_pcm_period_elapsed(s->substream);
751 				spin_lock(&bus->reg_lock);
752 			} else if (ok < 0) {
753 				pending = 0;	/* too early */
754 			} else
755 				pending++;
756 		}
757 		spin_unlock_irq(&bus->reg_lock);
758 		if (!pending)
759 			return;
760 		msleep(1);
761 	}
762 }
763 
764 /* clear irq_pending flags and assure no on-going workq */
765 static void azx_clear_irq_pending(struct azx *chip)
766 {
767 	struct hdac_bus *bus = azx_bus(chip);
768 	struct hdac_stream *s;
769 
770 	guard(spinlock_irq)(&bus->reg_lock);
771 	list_for_each_entry(s, &bus->stream_list, list) {
772 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
773 		azx_dev->irq_pending = 0;
774 	}
775 }
776 
777 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
778 {
779 	struct hdac_bus *bus = azx_bus(chip);
780 	int ret;
781 
782 	if (!chip->msi || pci_alloc_irq_vectors(chip->pci, 1, 1, PCI_IRQ_MSI) < 0) {
783 		ret = pci_alloc_irq_vectors(chip->pci, 1, 1, PCI_IRQ_INTX);
784 		if (ret < 0)
785 			return ret;
786 		chip->msi = 0;
787 	}
788 
789 	if (request_irq(chip->pci->irq, azx_interrupt,
790 			chip->msi ? 0 : IRQF_SHARED,
791 			chip->card->irq_descr, chip)) {
792 		dev_err(chip->card->dev,
793 			"unable to grab IRQ %d, disabling device\n",
794 			chip->pci->irq);
795 		if (do_disconnect)
796 			snd_card_disconnect(chip->card);
797 		return -1;
798 	}
799 	bus->irq = chip->pci->irq;
800 	chip->card->sync_irq = bus->irq;
801 	return 0;
802 }
803 
804 /* get the current DMA position with correction on VIA chips */
805 static unsigned int azx_via_get_position(struct azx *chip,
806 					 struct azx_dev *azx_dev)
807 {
808 	unsigned int link_pos, mini_pos, bound_pos;
809 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
810 	unsigned int fifo_size;
811 
812 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
813 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
814 		/* Playback, no problem using link position */
815 		return link_pos;
816 	}
817 
818 	/* Capture */
819 	/* For new chipset,
820 	 * use mod to get the DMA position just like old chipset
821 	 */
822 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
823 	mod_dma_pos %= azx_dev->core.period_bytes;
824 
825 	fifo_size = azx_stream(azx_dev)->fifo_size;
826 
827 	if (azx_dev->insufficient) {
828 		/* Link position never gather than FIFO size */
829 		if (link_pos <= fifo_size)
830 			return 0;
831 
832 		azx_dev->insufficient = 0;
833 	}
834 
835 	if (link_pos <= fifo_size)
836 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
837 	else
838 		mini_pos = link_pos - fifo_size;
839 
840 	/* Find nearest previous boudary */
841 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
842 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
843 	if (mod_link_pos >= fifo_size)
844 		bound_pos = link_pos - mod_link_pos;
845 	else if (mod_dma_pos >= mod_mini_pos)
846 		bound_pos = mini_pos - mod_mini_pos;
847 	else {
848 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
849 		if (bound_pos >= azx_dev->core.bufsize)
850 			bound_pos = 0;
851 	}
852 
853 	/* Calculate real DMA position we want */
854 	return bound_pos + mod_dma_pos;
855 }
856 
857 #define AMD_FIFO_SIZE	32
858 
859 /* get the current DMA position with FIFO size correction */
860 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
861 {
862 	struct snd_pcm_substream *substream = azx_dev->core.substream;
863 	struct snd_pcm_runtime *runtime = substream->runtime;
864 	unsigned int pos, delay;
865 
866 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
867 	if (!runtime)
868 		return pos;
869 
870 	runtime->delay = AMD_FIFO_SIZE;
871 	delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
872 	if (azx_dev->insufficient) {
873 		if (pos < delay) {
874 			delay = pos;
875 			runtime->delay = bytes_to_frames(runtime, pos);
876 		} else {
877 			azx_dev->insufficient = 0;
878 		}
879 	}
880 
881 	/* correct the DMA position for capture stream */
882 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
883 		if (pos < delay)
884 			pos += azx_dev->core.bufsize;
885 		pos -= delay;
886 	}
887 
888 	return pos;
889 }
890 
891 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
892 				   unsigned int pos)
893 {
894 	struct snd_pcm_substream *substream = azx_dev->core.substream;
895 
896 	/* just read back the calculated value in the above */
897 	return substream->runtime->delay;
898 }
899 
900 static void __azx_shutdown_chip(struct azx *chip, bool skip_link_reset)
901 {
902 	azx_stop_chip(chip);
903 	if (!skip_link_reset)
904 		azx_enter_link_reset(chip);
905 	azx_clear_irq_pending(chip);
906 	display_power(chip, false);
907 }
908 
909 static DEFINE_MUTEX(card_list_lock);
910 static LIST_HEAD(card_list);
911 
912 static void azx_shutdown_chip(struct azx *chip)
913 {
914 	__azx_shutdown_chip(chip, false);
915 }
916 
917 static void azx_add_card_list(struct azx *chip)
918 {
919 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
920 
921 	guard(mutex)(&card_list_lock);
922 	list_add(&hda->list, &card_list);
923 }
924 
925 static void azx_del_card_list(struct azx *chip)
926 {
927 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
928 
929 	guard(mutex)(&card_list_lock);
930 	list_del_init(&hda->list);
931 }
932 
933 /* trigger power-save check at writing parameter */
934 static int __maybe_unused param_set_xint(const char *val, const struct kernel_param *kp)
935 {
936 	struct hda_intel *hda;
937 	struct azx *chip;
938 	int prev = power_save;
939 	int ret = param_set_int(val, kp);
940 
941 	if (ret || prev == power_save)
942 		return ret;
943 
944 	if (pm_blacklist > 0)
945 		return 0;
946 
947 	guard(mutex)(&card_list_lock);
948 	list_for_each_entry(hda, &card_list, list) {
949 		chip = &hda->chip;
950 		if (!hda->probe_continued || chip->disabled ||
951 		    hda->runtime_pm_disabled)
952 			continue;
953 		snd_hda_set_power_save(&chip->bus, power_save * 1000);
954 	}
955 	return 0;
956 }
957 
958 /*
959  * power management
960  */
961 static bool azx_is_pm_ready(struct snd_card *card)
962 {
963 	struct azx *chip;
964 	struct hda_intel *hda;
965 
966 	if (!card)
967 		return false;
968 	chip = card->private_data;
969 	hda = container_of(chip, struct hda_intel, chip);
970 	if (chip->disabled || hda->init_failed || !chip->running)
971 		return false;
972 	return true;
973 }
974 
975 static void __azx_runtime_resume(struct azx *chip)
976 {
977 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
978 	struct hdac_bus *bus = azx_bus(chip);
979 	struct hda_codec *codec;
980 	int status;
981 
982 	display_power(chip, true);
983 	if (hda->need_i915_power)
984 		snd_hdac_i915_set_bclk(bus);
985 
986 	/* Read STATESTS before controller reset */
987 	status = azx_readw(chip, STATESTS);
988 
989 	azx_init_pci(chip);
990 	hda_intel_init_chip(chip, true);
991 
992 	/* Avoid codec resume if runtime resume is for system suspend */
993 	if (!chip->pm_prepared) {
994 		list_for_each_codec(codec, &chip->bus) {
995 			if (codec->relaxed_resume)
996 				continue;
997 
998 			if (codec->forced_resume || (status & (1 << codec->addr)))
999 				pm_request_resume(hda_codec_dev(codec));
1000 		}
1001 	}
1002 
1003 	/* power down again for link-controlled chips */
1004 	if (!hda->need_i915_power)
1005 		display_power(chip, false);
1006 }
1007 
1008 static int azx_prepare(struct device *dev)
1009 {
1010 	struct snd_card *card = dev_get_drvdata(dev);
1011 	struct azx *chip;
1012 
1013 	if (!azx_is_pm_ready(card))
1014 		return 0;
1015 
1016 	chip = card->private_data;
1017 	chip->pm_prepared = 1;
1018 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1019 
1020 	flush_work(&azx_bus(chip)->unsol_work);
1021 
1022 	/* HDA controller always requires different WAKEEN for runtime suspend
1023 	 * and system suspend, so don't use direct-complete here.
1024 	 */
1025 	return 0;
1026 }
1027 
1028 static void azx_complete(struct device *dev)
1029 {
1030 	struct snd_card *card = dev_get_drvdata(dev);
1031 	struct azx *chip;
1032 
1033 	if (!azx_is_pm_ready(card))
1034 		return;
1035 
1036 	chip = card->private_data;
1037 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1038 	chip->pm_prepared = 0;
1039 }
1040 
1041 static int azx_suspend(struct device *dev)
1042 {
1043 	struct snd_card *card = dev_get_drvdata(dev);
1044 	struct azx *chip;
1045 
1046 	if (!azx_is_pm_ready(card))
1047 		return 0;
1048 
1049 	chip = card->private_data;
1050 	azx_shutdown_chip(chip);
1051 
1052 	trace_azx_suspend(chip);
1053 	return 0;
1054 }
1055 
1056 static int azx_resume(struct device *dev)
1057 {
1058 	struct snd_card *card = dev_get_drvdata(dev);
1059 	struct azx *chip;
1060 
1061 	if (!azx_is_pm_ready(card))
1062 		return 0;
1063 
1064 	chip = card->private_data;
1065 
1066 	__azx_runtime_resume(chip);
1067 
1068 	trace_azx_resume(chip);
1069 	return 0;
1070 }
1071 
1072 /* put codec down to D3 at hibernation for Intel SKL+;
1073  * otherwise BIOS may still access the codec and screw up the driver
1074  */
1075 static int azx_freeze_noirq(struct device *dev)
1076 {
1077 	struct snd_card *card = dev_get_drvdata(dev);
1078 	struct azx *chip = card->private_data;
1079 	struct pci_dev *pci = to_pci_dev(dev);
1080 
1081 	if (!azx_is_pm_ready(card))
1082 		return 0;
1083 	if (chip->driver_type == AZX_DRIVER_SKL)
1084 		pci_set_power_state(pci, PCI_D3hot);
1085 
1086 	return 0;
1087 }
1088 
1089 static int azx_thaw_noirq(struct device *dev)
1090 {
1091 	struct snd_card *card = dev_get_drvdata(dev);
1092 	struct azx *chip = card->private_data;
1093 	struct pci_dev *pci = to_pci_dev(dev);
1094 
1095 	if (!azx_is_pm_ready(card))
1096 		return 0;
1097 	if (chip->driver_type == AZX_DRIVER_SKL)
1098 		pci_set_power_state(pci, PCI_D0);
1099 
1100 	return 0;
1101 }
1102 
1103 static int azx_runtime_suspend(struct device *dev)
1104 {
1105 	struct snd_card *card = dev_get_drvdata(dev);
1106 	struct azx *chip;
1107 
1108 	if (!azx_is_pm_ready(card))
1109 		return 0;
1110 	chip = card->private_data;
1111 
1112 	/* enable controller wake up event */
1113 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) | STATESTS_INT_MASK);
1114 
1115 	azx_shutdown_chip(chip);
1116 	trace_azx_runtime_suspend(chip);
1117 	return 0;
1118 }
1119 
1120 static int azx_runtime_resume(struct device *dev)
1121 {
1122 	struct snd_card *card = dev_get_drvdata(dev);
1123 	struct azx *chip;
1124 
1125 	if (!azx_is_pm_ready(card))
1126 		return 0;
1127 	chip = card->private_data;
1128 	__azx_runtime_resume(chip);
1129 
1130 	/* disable controller Wake Up event*/
1131 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) & ~STATESTS_INT_MASK);
1132 
1133 	trace_azx_runtime_resume(chip);
1134 	return 0;
1135 }
1136 
1137 static int azx_runtime_idle(struct device *dev)
1138 {
1139 	struct snd_card *card = dev_get_drvdata(dev);
1140 	struct azx *chip;
1141 	struct hda_intel *hda;
1142 
1143 	if (!card)
1144 		return 0;
1145 
1146 	chip = card->private_data;
1147 	hda = container_of(chip, struct hda_intel, chip);
1148 	if (chip->disabled || hda->init_failed)
1149 		return 0;
1150 
1151 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1152 	    azx_bus(chip)->codec_powered || !chip->running)
1153 		return -EBUSY;
1154 
1155 	/* ELD notification gets broken when HD-audio bus is off */
1156 	if (needs_eld_notify_link(chip))
1157 		return -EBUSY;
1158 
1159 	return 0;
1160 }
1161 
1162 static const struct dev_pm_ops azx_pm = {
1163 	SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1164 	.prepare = pm_sleep_ptr(azx_prepare),
1165 	.complete = pm_sleep_ptr(azx_complete),
1166 	.freeze_noirq = pm_sleep_ptr(azx_freeze_noirq),
1167 	.thaw_noirq = pm_sleep_ptr(azx_thaw_noirq),
1168 	RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1169 };
1170 
1171 
1172 static int azx_probe_continue(struct azx *chip);
1173 
1174 #ifdef SUPPORT_VGA_SWITCHEROO
1175 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1176 
1177 static void azx_vs_set_state(struct pci_dev *pci,
1178 			     enum vga_switcheroo_state state)
1179 {
1180 	struct snd_card *card = pci_get_drvdata(pci);
1181 	struct azx *chip = card->private_data;
1182 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1183 	struct hda_codec *codec;
1184 	bool disabled;
1185 
1186 	wait_for_completion(&hda->probe_wait);
1187 	if (hda->init_failed)
1188 		return;
1189 
1190 	disabled = (state == VGA_SWITCHEROO_OFF);
1191 	if (chip->disabled == disabled)
1192 		return;
1193 
1194 	if (!hda->probe_continued) {
1195 		chip->disabled = disabled;
1196 		if (!disabled) {
1197 			dev_info(chip->card->dev,
1198 				 "Start delayed initialization\n");
1199 			if (azx_probe_continue(chip) < 0)
1200 				dev_err(chip->card->dev, "initialization error\n");
1201 		}
1202 	} else {
1203 		dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1204 			 disabled ? "Disabling" : "Enabling");
1205 		if (disabled) {
1206 			list_for_each_codec(codec, &chip->bus) {
1207 				pm_runtime_suspend(hda_codec_dev(codec));
1208 				pm_runtime_disable(hda_codec_dev(codec));
1209 			}
1210 			pm_runtime_suspend(card->dev);
1211 			pm_runtime_disable(card->dev);
1212 			/* when we get suspended by vga_switcheroo we end up in D3cold,
1213 			 * however we have no ACPI handle, so pci/acpi can't put us there,
1214 			 * put ourselves there */
1215 			pci->current_state = PCI_D3cold;
1216 			chip->disabled = true;
1217 			if (snd_hda_lock_devices(&chip->bus))
1218 				dev_warn(chip->card->dev,
1219 					 "Cannot lock devices!\n");
1220 		} else {
1221 			snd_hda_unlock_devices(&chip->bus);
1222 			chip->disabled = false;
1223 			pm_runtime_enable(card->dev);
1224 			list_for_each_codec(codec, &chip->bus) {
1225 				pm_runtime_enable(hda_codec_dev(codec));
1226 				pm_runtime_resume(hda_codec_dev(codec));
1227 			}
1228 		}
1229 	}
1230 }
1231 
1232 static bool azx_vs_can_switch(struct pci_dev *pci)
1233 {
1234 	struct snd_card *card = pci_get_drvdata(pci);
1235 	struct azx *chip = card->private_data;
1236 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1237 
1238 	wait_for_completion(&hda->probe_wait);
1239 	if (hda->init_failed)
1240 		return false;
1241 	if (chip->disabled || !hda->probe_continued)
1242 		return true;
1243 	if (snd_hda_lock_devices(&chip->bus))
1244 		return false;
1245 	snd_hda_unlock_devices(&chip->bus);
1246 	return true;
1247 }
1248 
1249 /*
1250  * The discrete GPU cannot power down unless the HDA controller runtime
1251  * suspends, so activate runtime PM on codecs even if power_save == 0.
1252  */
1253 static void setup_vga_switcheroo_runtime_pm(struct azx *chip)
1254 {
1255 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1256 	struct hda_codec *codec;
1257 
1258 	if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
1259 		list_for_each_codec(codec, &chip->bus)
1260 			codec->auto_runtime_pm = 1;
1261 		/* reset the power save setup */
1262 		if (chip->running)
1263 			set_default_power_save(chip);
1264 	}
1265 }
1266 
1267 static void azx_vs_gpu_bound(struct pci_dev *pci,
1268 			     enum vga_switcheroo_client_id client_id)
1269 {
1270 	struct snd_card *card = pci_get_drvdata(pci);
1271 	struct azx *chip = card->private_data;
1272 
1273 	if (client_id == VGA_SWITCHEROO_DIS)
1274 		chip->bus.keep_power = 0;
1275 	setup_vga_switcheroo_runtime_pm(chip);
1276 }
1277 
1278 static void init_vga_switcheroo(struct azx *chip)
1279 {
1280 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1281 	struct pci_dev *p = get_bound_vga(chip->pci);
1282 	struct pci_dev *parent;
1283 	if (p) {
1284 		dev_info(chip->card->dev,
1285 			 "Handle vga_switcheroo audio client\n");
1286 		hda->use_vga_switcheroo = 1;
1287 
1288 		/* cleared in either gpu_bound op or codec probe, or when its
1289 		 * upstream port has _PR3 (i.e. dGPU).
1290 		 */
1291 		parent = pci_upstream_bridge(p);
1292 		chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
1293 		chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
1294 		pci_dev_put(p);
1295 	}
1296 }
1297 
1298 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1299 	.set_gpu_state = azx_vs_set_state,
1300 	.can_switch = azx_vs_can_switch,
1301 	.gpu_bound = azx_vs_gpu_bound,
1302 };
1303 
1304 static int register_vga_switcheroo(struct azx *chip)
1305 {
1306 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1307 	struct pci_dev *p;
1308 	int err;
1309 
1310 	if (!hda->use_vga_switcheroo)
1311 		return 0;
1312 
1313 	p = get_bound_vga(chip->pci);
1314 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
1315 	pci_dev_put(p);
1316 
1317 	if (err < 0)
1318 		return err;
1319 	hda->vga_switcheroo_registered = 1;
1320 
1321 	return 0;
1322 }
1323 #else
1324 #define init_vga_switcheroo(chip)		/* NOP */
1325 #define register_vga_switcheroo(chip)		0
1326 #define check_hdmi_disabled(pci)	false
1327 #define setup_vga_switcheroo_runtime_pm(chip)	/* NOP */
1328 #endif /* SUPPORT_VGA_SWITCHER */
1329 
1330 /*
1331  * destructor
1332  */
1333 static void azx_free(struct azx *chip)
1334 {
1335 	struct pci_dev *pci = chip->pci;
1336 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1337 	struct hdac_bus *bus = azx_bus(chip);
1338 
1339 	if (hda->freed)
1340 		return;
1341 
1342 	if (azx_has_pm_runtime(chip) && chip->running) {
1343 		pm_runtime_get_noresume(&pci->dev);
1344 		pm_runtime_forbid(&pci->dev);
1345 		pm_runtime_dont_use_autosuspend(&pci->dev);
1346 	}
1347 
1348 	chip->running = 0;
1349 
1350 	azx_del_card_list(chip);
1351 
1352 	hda->init_failed = 1; /* to be sure */
1353 	complete_all(&hda->probe_wait);
1354 
1355 	if (use_vga_switcheroo(hda)) {
1356 		if (chip->disabled && hda->probe_continued)
1357 			snd_hda_unlock_devices(&chip->bus);
1358 		if (hda->vga_switcheroo_registered) {
1359 			vga_switcheroo_unregister_client(chip->pci);
1360 
1361 			/* Some GPUs don't have sound, and azx_first_init fails,
1362 			 * leaving the device probed but non-functional. As long
1363 			 * as it's probed, the PCI subsystem keeps its runtime
1364 			 * PM status as active. Force it to suspended (as we
1365 			 * actually stop the chip) to allow GPU to suspend via
1366 			 * vga_switcheroo, and print a warning.
1367 			 */
1368 			dev_warn(&pci->dev, "GPU sound probed, but not operational: please add a quirk to driver_denylist\n");
1369 			pm_runtime_disable(&pci->dev);
1370 			pm_runtime_set_suspended(&pci->dev);
1371 			pm_runtime_enable(&pci->dev);
1372 		}
1373 	}
1374 
1375 	if (bus->chip_init) {
1376 		azx_clear_irq_pending(chip);
1377 		azx_stop_all_streams(chip);
1378 		azx_stop_chip(chip);
1379 	}
1380 
1381 	if (bus->irq >= 0)
1382 		free_irq(bus->irq, (void*)chip);
1383 
1384 	azx_free_stream_pages(chip);
1385 	azx_free_streams(chip);
1386 	snd_hdac_bus_exit(bus);
1387 
1388 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1389 	release_firmware(chip->fw);
1390 #endif
1391 	display_power(chip, false);
1392 
1393 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
1394 		snd_hdac_i915_exit(bus);
1395 
1396 	hda->freed = 1;
1397 }
1398 
1399 static int azx_dev_disconnect(struct snd_device *device)
1400 {
1401 	struct azx *chip = device->device_data;
1402 	struct hdac_bus *bus = azx_bus(chip);
1403 
1404 	chip->bus.shutdown = 1;
1405 	cancel_work_sync(&bus->unsol_work);
1406 
1407 	return 0;
1408 }
1409 
1410 static int azx_dev_free(struct snd_device *device)
1411 {
1412 	azx_free(device->device_data);
1413 	return 0;
1414 }
1415 
1416 #ifdef SUPPORT_VGA_SWITCHEROO
1417 #ifdef CONFIG_ACPI
1418 /* ATPX is in the integrated GPU's namespace */
1419 static bool atpx_present(void)
1420 {
1421 	struct pci_dev *pdev = NULL;
1422 	acpi_handle dhandle, atpx_handle;
1423 	acpi_status status;
1424 
1425 	while ((pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev))) {
1426 		if ((pdev->class != PCI_CLASS_DISPLAY_VGA << 8) &&
1427 		    (pdev->class != PCI_CLASS_DISPLAY_OTHER << 8))
1428 			continue;
1429 
1430 		dhandle = ACPI_HANDLE(&pdev->dev);
1431 		if (dhandle) {
1432 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1433 			if (ACPI_SUCCESS(status)) {
1434 				pci_dev_put(pdev);
1435 				return true;
1436 			}
1437 		}
1438 	}
1439 	return false;
1440 }
1441 #else
1442 static bool atpx_present(void)
1443 {
1444 	return false;
1445 }
1446 #endif
1447 
1448 /*
1449  * Check of disabled HDMI controller by vga_switcheroo
1450  */
1451 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1452 {
1453 	struct pci_dev *p;
1454 
1455 	/* check only discrete GPU */
1456 	switch (pci->vendor) {
1457 	case PCI_VENDOR_ID_ATI:
1458 	case PCI_VENDOR_ID_AMD:
1459 		if (pci->devfn == 1) {
1460 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1461 							pci->bus->number, 0);
1462 			if (p) {
1463 				/* ATPX is in the integrated GPU's ACPI namespace
1464 				 * rather than the dGPU's namespace. However,
1465 				 * the dGPU is the one who is involved in
1466 				 * vgaswitcheroo.
1467 				 */
1468 				if (pci_is_display(p) &&
1469 				    (atpx_present() || apple_gmux_detect(NULL, NULL)))
1470 					return p;
1471 				pci_dev_put(p);
1472 			}
1473 		}
1474 		break;
1475 	case PCI_VENDOR_ID_NVIDIA:
1476 		if (pci->devfn == 1) {
1477 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1478 							pci->bus->number, 0);
1479 			if (p) {
1480 				if (pci_is_display(p))
1481 					return p;
1482 				pci_dev_put(p);
1483 			}
1484 		}
1485 		break;
1486 	}
1487 	return NULL;
1488 }
1489 
1490 static bool check_hdmi_disabled(struct pci_dev *pci)
1491 {
1492 	bool vga_inactive = false;
1493 	struct pci_dev *p = get_bound_vga(pci);
1494 
1495 	if (p) {
1496 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1497 			vga_inactive = true;
1498 		pci_dev_put(p);
1499 	}
1500 	return vga_inactive;
1501 }
1502 #endif /* SUPPORT_VGA_SWITCHEROO */
1503 
1504 /*
1505  * allow/deny-listing for position_fix
1506  */
1507 static const struct snd_pci_quirk position_fix_list[] = {
1508 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1509 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1510 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1511 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1512 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1513 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1514 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1515 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1516 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1517 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1518 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1519 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1520 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1521 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1522 	{}
1523 };
1524 
1525 static int check_position_fix(struct azx *chip, int fix)
1526 {
1527 	const struct snd_pci_quirk *q;
1528 
1529 	switch (fix) {
1530 	case POS_FIX_AUTO:
1531 	case POS_FIX_LPIB:
1532 	case POS_FIX_POSBUF:
1533 	case POS_FIX_VIACOMBO:
1534 	case POS_FIX_COMBO:
1535 	case POS_FIX_SKL:
1536 	case POS_FIX_FIFO:
1537 		return fix;
1538 	}
1539 
1540 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1541 	if (q) {
1542 		dev_info(chip->card->dev,
1543 			 "position_fix set to %d for device %04x:%04x\n",
1544 			 q->value, q->subvendor, q->subdevice);
1545 		return q->value;
1546 	}
1547 
1548 	/* Check VIA/ATI HD Audio Controller exist */
1549 	if (chip->driver_type == AZX_DRIVER_VIA) {
1550 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1551 		return POS_FIX_VIACOMBO;
1552 	}
1553 	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1554 		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1555 		return POS_FIX_FIFO;
1556 	}
1557 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1558 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1559 		return POS_FIX_LPIB;
1560 	}
1561 	if (chip->driver_type == AZX_DRIVER_SKL) {
1562 		dev_dbg(chip->card->dev, "Using SKL position fix\n");
1563 		return POS_FIX_SKL;
1564 	}
1565 	return POS_FIX_AUTO;
1566 }
1567 
1568 static void assign_position_fix(struct azx *chip, int fix)
1569 {
1570 	static const azx_get_pos_callback_t callbacks[] = {
1571 		[POS_FIX_AUTO] = NULL,
1572 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1573 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1574 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1575 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1576 		[POS_FIX_SKL] = azx_get_pos_posbuf,
1577 		[POS_FIX_FIFO] = azx_get_pos_fifo,
1578 	};
1579 
1580 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1581 
1582 	/* combo mode uses LPIB only for playback */
1583 	if (fix == POS_FIX_COMBO)
1584 		chip->get_position[1] = NULL;
1585 
1586 	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1587 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1588 		chip->get_delay[0] = chip->get_delay[1] =
1589 			azx_get_delay_from_lpib;
1590 	}
1591 
1592 	if (fix == POS_FIX_FIFO)
1593 		chip->get_delay[0] = chip->get_delay[1] =
1594 			azx_get_delay_from_fifo;
1595 }
1596 
1597 /*
1598  * deny-lists for probe_mask
1599  */
1600 static const struct snd_pci_quirk probe_mask_list[] = {
1601 	/* Thinkpad often breaks the controller communication when accessing
1602 	 * to the non-working (or non-existing) modem codec slot.
1603 	 */
1604 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1605 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1606 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1607 	/* broken BIOS */
1608 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1609 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1610 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1611 	/* forced codec slots */
1612 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1613 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1614 	SND_PCI_QUIRK(0x1558, 0x0351, "Schenker Dock 15", 0x105),
1615 	/* WinFast VP200 H (Teradici) user reported broken communication */
1616 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1617 	{}
1618 };
1619 
1620 #define AZX_FORCE_CODEC_MASK	0x100
1621 
1622 static void check_probe_mask(struct azx *chip, int dev)
1623 {
1624 	const struct snd_pci_quirk *q;
1625 
1626 	chip->codec_probe_mask = probe_mask[dev];
1627 	if (chip->codec_probe_mask == -1) {
1628 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1629 		if (q) {
1630 			dev_info(chip->card->dev,
1631 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1632 				 q->value, q->subvendor, q->subdevice);
1633 			chip->codec_probe_mask = q->value;
1634 		}
1635 	}
1636 
1637 	/* check forced option */
1638 	if (chip->codec_probe_mask != -1 &&
1639 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1640 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1641 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1642 			 (int)azx_bus(chip)->codec_mask);
1643 	}
1644 }
1645 
1646 /*
1647  * allow/deny-list for enable_msi
1648  */
1649 static const struct snd_pci_quirk msi_deny_list[] = {
1650 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1651 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1652 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1653 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1654 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1655 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1656 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1657 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1658 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1659 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1660 	{}
1661 };
1662 
1663 static void check_msi(struct azx *chip)
1664 {
1665 	const struct snd_pci_quirk *q;
1666 
1667 	if (enable_msi >= 0) {
1668 		chip->msi = !!enable_msi;
1669 		return;
1670 	}
1671 	chip->msi = 1;	/* enable MSI as default */
1672 	q = snd_pci_quirk_lookup(chip->pci, msi_deny_list);
1673 	if (q) {
1674 		dev_info(chip->card->dev,
1675 			 "msi for device %04x:%04x set to %d\n",
1676 			 q->subvendor, q->subdevice, q->value);
1677 		chip->msi = q->value;
1678 		return;
1679 	}
1680 
1681 	/* NVidia chipsets seem to cause troubles with MSI */
1682 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1683 		dev_info(chip->card->dev, "Disabling MSI\n");
1684 		chip->msi = 0;
1685 	}
1686 }
1687 
1688 /* check the snoop mode availability */
1689 static void azx_check_snoop_available(struct azx *chip)
1690 {
1691 	int snoop = hda_snoop;
1692 
1693 	if (snoop >= 0) {
1694 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1695 			 snoop ? "snoop" : "non-snoop");
1696 		chip->snoop = snoop;
1697 		chip->uc_buffer = !snoop;
1698 		return;
1699 	}
1700 
1701 	snoop = true;
1702 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1703 	    chip->driver_type == AZX_DRIVER_VIA) {
1704 		/* force to non-snoop mode for a new VIA controller
1705 		 * when BIOS is set
1706 		 */
1707 		u8 val;
1708 		pci_read_config_byte(chip->pci, 0x42, &val);
1709 		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1710 				      chip->pci->revision == 0x20))
1711 			snoop = false;
1712 	}
1713 
1714 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1715 		snoop = false;
1716 
1717 	chip->snoop = snoop;
1718 	if (!snoop) {
1719 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1720 		/* C-Media requires non-cached pages only for CORB/RIRB */
1721 		if (chip->driver_type != AZX_DRIVER_CMEDIA)
1722 			chip->uc_buffer = true;
1723 	}
1724 }
1725 
1726 static void azx_probe_work(struct work_struct *work)
1727 {
1728 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work.work);
1729 	azx_probe_continue(&hda->chip);
1730 }
1731 
1732 static int default_bdl_pos_adj(struct azx *chip)
1733 {
1734 	/* some exceptions: Atoms seem problematic with value 1 */
1735 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1736 		switch (chip->pci->device) {
1737 		case PCI_DEVICE_ID_INTEL_HDA_BYT:
1738 		case PCI_DEVICE_ID_INTEL_HDA_BSW:
1739 			return 32;
1740 		case PCI_DEVICE_ID_INTEL_HDA_APL:
1741 			return 64;
1742 		}
1743 	}
1744 
1745 	switch (chip->driver_type) {
1746 	/*
1747 	 * increase the bdl size for Glenfly Gpus for hardware
1748 	 * limitation on hdac interrupt interval
1749 	 */
1750 	case AZX_DRIVER_GFHDMI:
1751 		return 128;
1752 	case AZX_DRIVER_ICH:
1753 	case AZX_DRIVER_PCH:
1754 		return 1;
1755 	case AZX_DRIVER_ZHAOXINHDMI:
1756 		return 128;
1757 	case AZX_DRIVER_NVIDIA:
1758 		return 64;
1759 	default:
1760 		return 32;
1761 	}
1762 }
1763 
1764 /*
1765  * constructor
1766  */
1767 static const struct hda_controller_ops pci_hda_ops;
1768 
1769 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1770 		      int dev, unsigned int driver_caps,
1771 		      struct azx **rchip)
1772 {
1773 	static const struct snd_device_ops ops = {
1774 		.dev_disconnect = azx_dev_disconnect,
1775 		.dev_free = azx_dev_free,
1776 	};
1777 	struct hda_intel *hda;
1778 	struct azx *chip;
1779 	int err;
1780 
1781 	*rchip = NULL;
1782 
1783 	err = pcim_enable_device(pci);
1784 	if (err < 0)
1785 		return err;
1786 
1787 	hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL);
1788 	if (!hda)
1789 		return -ENOMEM;
1790 
1791 	chip = &hda->chip;
1792 	mutex_init(&chip->open_mutex);
1793 	chip->card = card;
1794 	chip->pci = pci;
1795 	chip->ops = &pci_hda_ops;
1796 	chip->driver_caps = driver_caps;
1797 	chip->driver_type = driver_caps & 0xff;
1798 	check_msi(chip);
1799 	chip->dev_index = dev;
1800 	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1801 		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1802 	INIT_LIST_HEAD(&chip->pcm_list);
1803 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1804 	INIT_LIST_HEAD(&hda->list);
1805 	init_vga_switcheroo(chip);
1806 	init_completion(&hda->probe_wait);
1807 
1808 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1809 
1810 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1811 		chip->fallback_to_single_cmd = 1;
1812 	else /* explicitly set to single_cmd or not */
1813 		chip->single_cmd = single_cmd;
1814 
1815 	azx_check_snoop_available(chip);
1816 
1817 	if (bdl_pos_adj[dev] < 0)
1818 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1819 	else
1820 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1821 
1822 	err = azx_bus_init(chip, model[dev]);
1823 	if (err < 0)
1824 		return err;
1825 
1826 	/* use the non-cached pages in non-snoop mode */
1827 	if (!azx_snoop(chip))
1828 		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_WC;
1829 
1830 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1831 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1832 		chip->bus.core.needs_damn_long_delay = 1;
1833 	}
1834 
1835 	check_probe_mask(chip, dev);
1836 
1837 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1838 	if (err < 0) {
1839 		dev_err(card->dev, "Error creating device [card]!\n");
1840 		azx_free(chip);
1841 		return err;
1842 	}
1843 
1844 	/* continue probing in work context as may trigger request module */
1845 	INIT_DELAYED_WORK(&hda->probe_work, azx_probe_work);
1846 
1847 	*rchip = chip;
1848 
1849 	return 0;
1850 }
1851 
1852 static int azx_first_init(struct azx *chip)
1853 {
1854 	int dev = chip->dev_index;
1855 	struct pci_dev *pci = chip->pci;
1856 	struct snd_card *card = chip->card;
1857 	struct hdac_bus *bus = azx_bus(chip);
1858 	int err;
1859 	unsigned short gcap;
1860 	unsigned int dma_bits = 64;
1861 
1862 #if BITS_PER_LONG != 64
1863 	/* Fix up base address on ULI M5461 */
1864 	if (chip->driver_type == AZX_DRIVER_ULI) {
1865 		u16 tmp3;
1866 		pci_read_config_word(pci, 0x40, &tmp3);
1867 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1868 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1869 	}
1870 #endif
1871 	/*
1872 	 * Fix response write request not synced to memory when handle
1873 	 * hdac interrupt on Glenfly Gpus
1874 	 */
1875 	if (chip->driver_type == AZX_DRIVER_GFHDMI)
1876 		bus->polling_mode = 1;
1877 
1878 	if (chip->driver_type == AZX_DRIVER_LOONGSON) {
1879 		bus->polling_mode = 1;
1880 		bus->not_use_interrupts = 1;
1881 		bus->access_sdnctl_in_dword = 1;
1882 		if (!chip->jackpoll_interval)
1883 			chip->jackpoll_interval = msecs_to_jiffies(1500);
1884 	}
1885 
1886 	if (chip->driver_type == AZX_DRIVER_ZHAOXINHDMI)
1887 		bus->polling_mode = 1;
1888 
1889 	bus->remap_addr = pcim_iomap_region(pci, 0, "ICH HD audio");
1890 	if (IS_ERR(bus->remap_addr))
1891 		return PTR_ERR(bus->remap_addr);
1892 
1893 	bus->addr = pci_resource_start(pci, 0);
1894 
1895 	if (chip->driver_type == AZX_DRIVER_SKL)
1896 		snd_hdac_bus_parse_capabilities(bus);
1897 
1898 	/*
1899 	 * Some Intel CPUs has always running timer (ART) feature and
1900 	 * controller may have Global time sync reporting capability, so
1901 	 * check both of these before declaring synchronized time reporting
1902 	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1903 	 */
1904 	chip->gts_present = false;
1905 
1906 #ifdef CONFIG_X86
1907 	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1908 		chip->gts_present = true;
1909 #endif
1910 
1911 	pci_set_master(pci);
1912 
1913 	gcap = azx_readw(chip, GCAP);
1914 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1915 
1916 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1917 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1918 		dma_bits = 40;
1919 
1920 	/* disable SB600 64bit support for safety */
1921 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1922 		struct pci_dev *p_smbus;
1923 		dma_bits = 40;
1924 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1925 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1926 					 NULL);
1927 		if (p_smbus) {
1928 			if (p_smbus->revision < 0x30)
1929 				gcap &= ~AZX_GCAP_64OK;
1930 			pci_dev_put(p_smbus);
1931 		}
1932 	}
1933 
1934 	/* NVidia hardware normally only supports up to 40 bits of DMA */
1935 	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1936 		dma_bits = 40;
1937 
1938 	/* disable 64bit DMA address on some devices */
1939 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1940 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1941 		gcap &= ~AZX_GCAP_64OK;
1942 	}
1943 
1944 	/* disable buffer size rounding to 128-byte multiples if supported */
1945 	if (align_buffer_size >= 0)
1946 		chip->align_buffer_size = !!align_buffer_size;
1947 	else {
1948 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1949 			chip->align_buffer_size = 0;
1950 		else
1951 			chip->align_buffer_size = 1;
1952 	}
1953 
1954 	/* allow 64bit DMA address if supported by H/W */
1955 	if (!(gcap & AZX_GCAP_64OK))
1956 		dma_bits = 32;
1957 	if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(dma_bits)))
1958 		dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32));
1959 	dma_set_max_seg_size(&pci->dev, UINT_MAX);
1960 
1961 	if (chip->msi && chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1962 		dev_dbg(card->dev, "Restricting MSI to %u-bit\n", dma_bits);
1963 		pci->msi_addr_mask = DMA_BIT_MASK(dma_bits);
1964 	}
1965 
1966 	/* read number of streams from GCAP register instead of using
1967 	 * hardcoded value
1968 	 */
1969 	chip->capture_streams = (gcap >> 8) & 0x0f;
1970 	chip->playback_streams = (gcap >> 12) & 0x0f;
1971 	if (!chip->playback_streams && !chip->capture_streams) {
1972 		/* gcap didn't give any info, switching to old method */
1973 
1974 		switch (chip->driver_type) {
1975 		case AZX_DRIVER_ULI:
1976 			chip->playback_streams = ULI_NUM_PLAYBACK;
1977 			chip->capture_streams = ULI_NUM_CAPTURE;
1978 			break;
1979 		case AZX_DRIVER_ATIHDMI:
1980 		case AZX_DRIVER_ATIHDMI_NS:
1981 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1982 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1983 			break;
1984 		case AZX_DRIVER_GFHDMI:
1985 		case AZX_DRIVER_ZHAOXINHDMI:
1986 		case AZX_DRIVER_GENERIC:
1987 		default:
1988 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1989 			chip->capture_streams = ICH6_NUM_CAPTURE;
1990 			break;
1991 		}
1992 	}
1993 	chip->capture_index_offset = 0;
1994 	chip->playback_index_offset = chip->capture_streams;
1995 	chip->num_streams = chip->playback_streams + chip->capture_streams;
1996 
1997 	/* sanity check for the SDxCTL.STRM field overflow */
1998 	if (chip->num_streams > 15 &&
1999 	    (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
2000 		dev_warn(chip->card->dev, "number of I/O streams is %d, "
2001 			 "forcing separate stream tags", chip->num_streams);
2002 		chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
2003 	}
2004 
2005 	/* initialize streams */
2006 	err = azx_init_streams(chip);
2007 	if (err < 0)
2008 		return err;
2009 
2010 	err = azx_alloc_stream_pages(chip);
2011 	if (err < 0)
2012 		return err;
2013 
2014 	/* initialize chip */
2015 	azx_init_pci(chip);
2016 
2017 	snd_hdac_i915_set_bclk(bus);
2018 
2019 	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
2020 
2021 	/* codec detection */
2022 	if (!azx_bus(chip)->codec_mask) {
2023 		dev_err(card->dev, "no codecs found!\n");
2024 		/* keep running the rest for the runtime PM */
2025 	}
2026 
2027 	if (azx_acquire_irq(chip, 0) < 0)
2028 		return -EBUSY;
2029 
2030 	strscpy(card->driver, "HDA-Intel");
2031 	strscpy(card->shortname, driver_short_names[chip->driver_type],
2032 		sizeof(card->shortname));
2033 	snprintf(card->longname, sizeof(card->longname),
2034 		 "%s at 0x%lx irq %i",
2035 		 card->shortname, bus->addr, bus->irq);
2036 
2037 	return 0;
2038 }
2039 
2040 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2041 /* callback from request_firmware_nowait() */
2042 static void azx_firmware_cb(const struct firmware *fw, void *context)
2043 {
2044 	struct snd_card *card = context;
2045 	struct azx *chip = card->private_data;
2046 
2047 	if (fw)
2048 		chip->fw = fw;
2049 	else
2050 		dev_err(card->dev, "Cannot load firmware, continue without patching\n");
2051 	if (!chip->disabled) {
2052 		/* continue probing */
2053 		azx_probe_continue(chip);
2054 	}
2055 }
2056 #endif
2057 
2058 static int disable_msi_reset_irq(struct azx *chip)
2059 {
2060 	struct hdac_bus *bus = azx_bus(chip);
2061 	int err;
2062 
2063 	free_irq(bus->irq, chip);
2064 	bus->irq = -1;
2065 	chip->card->sync_irq = -1;
2066 	pci_free_irq_vectors(chip->pci);
2067 	chip->msi = 0;
2068 	err = azx_acquire_irq(chip, 1);
2069 	if (err < 0)
2070 		return err;
2071 
2072 	return 0;
2073 }
2074 
2075 /* Denylist for skipping the whole probe:
2076  * some HD-audio PCI entries are exposed without any codecs, and such devices
2077  * should be ignored from the beginning.
2078  */
2079 static const struct pci_device_id driver_denylist[] = {
2080 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) }, /* ASUS ROG Zenith II / Strix */
2081 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) }, /* MSI TRX40 Creator */
2082 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) }, /* MSI TRX40 */
2083 	{}
2084 };
2085 
2086 static struct pci_device_id driver_denylist_ideapad_z570[] = {
2087 	{ PCI_DEVICE_SUB(0x10de, 0x0bea, 0x0000, 0x0000) }, /* NVIDIA GF108 HDA */
2088 	{}
2089 };
2090 
2091 static struct pci_device_id driver_denylist_msi_x870e[] = {
2092 	{ PCI_DEVICE_SUB(0x1022, 0x15e3, 0x1462, 0xee59) }, /* MSI X870E Tomahawk WiFi */
2093 	{}
2094 };
2095 
2096 /* DMI-based denylist, to be used when:
2097  *  - PCI subsystem IDs are zero, impossible to distinguish from valid sound cards.
2098  *  - Different modifications of the same laptop use different GPU models.
2099  */
2100 static const struct dmi_system_id driver_denylist_dmi[] = {
2101 	{
2102 		/* No HDA in NVIDIA DGPU. BIOS disables it, but quirk_nvidia_hda() reenables. */
2103 		.matches = {
2104 			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
2105 			DMI_MATCH(DMI_PRODUCT_VERSION, "Ideapad Z570"),
2106 		},
2107 		.driver_data = &driver_denylist_ideapad_z570,
2108 	},
2109 	{
2110 		/* PCI device matching alone incorrectly matches some laptops */
2111 		.matches = {
2112 			DMI_MATCH(DMI_BOARD_VENDOR, "Micro-Star International Co., Ltd."),
2113 			DMI_MATCH(DMI_BOARD_NAME, "MAG X870E TOMAHAWK WIFI (MS-7E59)"),
2114 		},
2115 		.driver_data = &driver_denylist_msi_x870e,
2116 	},
2117 	{}
2118 };
2119 
2120 static const struct hda_controller_ops pci_hda_ops = {
2121 	.disable_msi_reset_irq = disable_msi_reset_irq,
2122 	.position_check = azx_position_check,
2123 };
2124 
2125 static DECLARE_BITMAP(probed_devs, SNDRV_CARDS);
2126 
2127 static int azx_probe(struct pci_dev *pci,
2128 		     const struct pci_device_id *pci_id)
2129 {
2130 	const struct dmi_system_id *dmi;
2131 	struct snd_card *card;
2132 	struct hda_intel *hda;
2133 	struct azx *chip;
2134 	bool schedule_probe;
2135 	int dev;
2136 	int err;
2137 
2138 	if (pci_match_id(driver_denylist, pci)) {
2139 		dev_info(&pci->dev, "Skipping the device on the denylist\n");
2140 		return -ENODEV;
2141 	}
2142 
2143 	dmi = dmi_first_match(driver_denylist_dmi);
2144 	if (dmi && pci_match_id(dmi->driver_data, pci)) {
2145 		dev_info(&pci->dev, "Skipping the device on the DMI denylist\n");
2146 		return -ENODEV;
2147 	}
2148 
2149 	dev = find_first_zero_bit(probed_devs, SNDRV_CARDS);
2150 	if (dev >= SNDRV_CARDS)
2151 		return -ENODEV;
2152 	if (!enable[dev]) {
2153 		set_bit(dev, probed_devs);
2154 		return -ENOENT;
2155 	}
2156 
2157 	/*
2158 	 * stop probe if another Intel's DSP driver should be activated
2159 	 */
2160 	if (dmic_detect) {
2161 		err = snd_intel_dsp_driver_probe(pci);
2162 		if (err != SND_INTEL_DSP_DRIVER_ANY && err != SND_INTEL_DSP_DRIVER_LEGACY) {
2163 			dev_dbg(&pci->dev, "HDAudio driver not selected, aborting probe\n");
2164 			return -ENODEV;
2165 		}
2166 	} else {
2167 		dev_warn(&pci->dev, "dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
2168 	}
2169 
2170 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2171 			   0, &card);
2172 	if (err < 0) {
2173 		dev_err(&pci->dev, "Error creating card!\n");
2174 		return err;
2175 	}
2176 
2177 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2178 	if (err < 0)
2179 		goto out_free;
2180 	card->private_data = chip;
2181 	hda = container_of(chip, struct hda_intel, chip);
2182 
2183 	pci_set_drvdata(pci, card);
2184 
2185 #ifdef CONFIG_SND_HDA_I915
2186 	/* bind with i915 if needed */
2187 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2188 		err = snd_hdac_i915_init(azx_bus(chip));
2189 		if (err < 0) {
2190 			if (err == -EPROBE_DEFER)
2191 				goto out_free;
2192 
2193 			/* if the controller is bound only with HDMI/DP
2194 			 * (for HSW and BDW), we need to abort the probe;
2195 			 * for other chips, still continue probing as other
2196 			 * codecs can be on the same link.
2197 			 */
2198 			if (HDA_CONTROLLER_IN_GPU(pci)) {
2199 				dev_err_probe(card->dev, err,
2200 					     "HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2201 
2202 				goto out_free;
2203 			} else {
2204 				/* don't bother any longer */
2205 				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2206 			}
2207 		}
2208 
2209 		/* HSW/BDW controllers need this power */
2210 		if (HDA_CONTROLLER_IN_GPU(pci))
2211 			hda->need_i915_power = true;
2212 	}
2213 #else
2214 	if (HDA_CONTROLLER_IN_GPU(pci))
2215 		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2216 #endif
2217 
2218 	err = register_vga_switcheroo(chip);
2219 	if (err < 0) {
2220 		dev_err(card->dev, "Error registering vga_switcheroo client\n");
2221 		goto out_free;
2222 	}
2223 
2224 	if (check_hdmi_disabled(pci)) {
2225 		dev_info(card->dev, "VGA controller is disabled\n");
2226 		dev_info(card->dev, "Delaying initialization\n");
2227 		chip->disabled = true;
2228 	}
2229 
2230 	schedule_probe = !chip->disabled;
2231 
2232 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2233 	if (patch[dev] && *patch[dev]) {
2234 		dev_info(card->dev, "Applying patch firmware '%s'\n",
2235 			 patch[dev]);
2236 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2237 					      &pci->dev, GFP_KERNEL, card,
2238 					      azx_firmware_cb);
2239 		if (err < 0)
2240 			goto out_free;
2241 		schedule_probe = false; /* continued in azx_firmware_cb() */
2242 	}
2243 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2244 
2245 	if (schedule_probe)
2246 		schedule_delayed_work(&hda->probe_work, 0);
2247 
2248 	set_bit(dev, probed_devs);
2249 	if (chip->disabled)
2250 		complete_all(&hda->probe_wait);
2251 	return 0;
2252 
2253 out_free:
2254 	pci_set_drvdata(pci, NULL);
2255 	snd_card_free(card);
2256 	return err;
2257 }
2258 
2259 /* On some boards setting power_save to a non 0 value leads to clicking /
2260  * popping sounds when ever we enter/leave powersaving mode. Ideally we would
2261  * figure out how to avoid these sounds, but that is not always feasible.
2262  * So we keep a list of devices where we disable powersaving as its known
2263  * to causes problems on these devices.
2264  */
2265 static const struct snd_pci_quirk power_save_denylist[] = {
2266 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2267 	SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
2268 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2269 	SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
2270 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2271 	SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
2272 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2273 	SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
2274 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2275 	SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
2276 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2277 	/* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
2278 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
2279 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2280 	SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
2281 	/* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
2282 	SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
2283 	/* https://bugs.launchpad.net/bugs/1821663 */
2284 	SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
2285 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
2286 	SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
2287 	/* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
2288 	SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
2289 	SND_PCI_QUIRK(0x17aa, 0x316e, "Lenovo ThinkCentre M70q", 0),
2290 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
2291 	SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
2292 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
2293 	SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
2294 	/* https://bugs.launchpad.net/bugs/1821663 */
2295 	SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
2296 	/* KONTRON SinglePC may cause a stall at runtime resume */
2297 	SND_PCI_QUIRK(0x1734, 0x1232, "KONTRON SinglePC", 0),
2298 	/* Dell ALC3271 */
2299 	SND_PCI_QUIRK(0x1028, 0x0962, "Dell ALC3271", 0),
2300 	/* https://bugzilla.kernel.org/show_bug.cgi?id=220210 */
2301 	SND_PCI_QUIRK(0x17aa, 0x5079, "Lenovo Thinkpad E15", 0),
2302 	{}
2303 };
2304 
2305 static void set_default_power_save(struct azx *chip)
2306 {
2307 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2308 	int val = power_save;
2309 
2310 	if (pm_blacklist < 0) {
2311 		const struct snd_pci_quirk *q;
2312 
2313 		q = snd_pci_quirk_lookup(chip->pci, power_save_denylist);
2314 		if (q && val) {
2315 			dev_info(chip->card->dev, "device %04x:%04x is on the power_save denylist, forcing power_save to 0\n",
2316 				 q->subvendor, q->subdevice);
2317 			val = 0;
2318 			hda->runtime_pm_disabled = 1;
2319 		}
2320 	} else if (pm_blacklist > 0) {
2321 		dev_info(chip->card->dev, "Forcing power_save to 0 via option\n");
2322 		val = 0;
2323 	}
2324 	snd_hda_set_power_save(&chip->bus, val * 1000);
2325 }
2326 
2327 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2328 static const unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2329 	[AZX_DRIVER_NVIDIA] = 8,
2330 	[AZX_DRIVER_TERA] = 1,
2331 };
2332 
2333 static int azx_probe_continue(struct azx *chip)
2334 {
2335 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2336 	struct hdac_bus *bus = azx_bus(chip);
2337 	struct pci_dev *pci = chip->pci;
2338 	int dev = chip->dev_index;
2339 	int err;
2340 
2341 	if (chip->disabled || hda->init_failed)
2342 		return -EIO;
2343 	if (hda->probe_retry)
2344 		goto probe_retry;
2345 
2346 	to_hda_bus(bus)->bus_probing = 1;
2347 	hda->probe_continued = 1;
2348 
2349 	/* Request display power well for the HDA controller or codec. For
2350 	 * Haswell/Broadwell, both the display HDA controller and codec need
2351 	 * this power. For other platforms, like Baytrail/Braswell, only the
2352 	 * display codec needs the power and it can be released after probe.
2353 	 */
2354 	display_power(chip, true);
2355 
2356 	err = azx_first_init(chip);
2357 	if (err < 0)
2358 		goto out_free;
2359 
2360 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2361 	chip->beep_mode = beep_mode[dev];
2362 #endif
2363 
2364 	chip->ctl_dev_id = ctl_dev_id;
2365 
2366 	/* create codec instances */
2367 	if (bus->codec_mask) {
2368 		err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2369 		if (err < 0)
2370 			goto out_free;
2371 	}
2372 
2373 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2374 	if (chip->fw) {
2375 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2376 					 chip->fw->data);
2377 		if (err < 0)
2378 			goto out_free;
2379 	}
2380 #endif
2381 
2382  probe_retry:
2383 	if (bus->codec_mask && !(probe_only[dev] & 1)) {
2384 		err = azx_codec_configure(chip);
2385 		if (err) {
2386 			if ((chip->driver_caps & AZX_DCAPS_RETRY_PROBE) &&
2387 			    ++hda->probe_retry < 60) {
2388 				schedule_delayed_work(&hda->probe_work,
2389 						      msecs_to_jiffies(1000));
2390 				return 0; /* keep things up */
2391 			}
2392 			dev_err(chip->card->dev, "Cannot probe codecs, giving up\n");
2393 			goto out_free;
2394 		}
2395 	}
2396 
2397 	err = snd_card_register(chip->card);
2398 	if (err < 0)
2399 		goto out_free;
2400 
2401 	setup_vga_switcheroo_runtime_pm(chip);
2402 
2403 	chip->running = 1;
2404 	azx_add_card_list(chip);
2405 
2406 	set_default_power_save(chip);
2407 
2408 	if (azx_has_pm_runtime(chip)) {
2409 		pm_runtime_use_autosuspend(&pci->dev);
2410 		pm_runtime_allow(&pci->dev);
2411 		pm_runtime_put_autosuspend(&pci->dev);
2412 	}
2413 
2414 out_free:
2415 	if (err < 0) {
2416 		pci_set_drvdata(pci, NULL);
2417 		snd_card_free(chip->card);
2418 		return err;
2419 	}
2420 
2421 	if (!hda->need_i915_power)
2422 		display_power(chip, false);
2423 	complete_all(&hda->probe_wait);
2424 	to_hda_bus(bus)->bus_probing = 0;
2425 	hda->probe_retry = 0;
2426 	return 0;
2427 }
2428 
2429 static void azx_remove(struct pci_dev *pci)
2430 {
2431 	struct snd_card *card = pci_get_drvdata(pci);
2432 	struct azx *chip;
2433 	struct hda_intel *hda;
2434 
2435 	if (card) {
2436 		/* cancel the pending probing work */
2437 		chip = card->private_data;
2438 		hda = container_of(chip, struct hda_intel, chip);
2439 		/* FIXME: below is an ugly workaround.
2440 		 * Both device_release_driver() and driver_probe_device()
2441 		 * take *both* the device's and its parent's lock before
2442 		 * calling the remove() and probe() callbacks.  The codec
2443 		 * probe takes the locks of both the codec itself and its
2444 		 * parent, i.e. the PCI controller dev.  Meanwhile, when
2445 		 * the PCI controller is unbound, it takes its lock, too
2446 		 * ==> ouch, a deadlock!
2447 		 * As a workaround, we unlock temporarily here the controller
2448 		 * device during cancel_work_sync() call.
2449 		 */
2450 		device_unlock(&pci->dev);
2451 		cancel_delayed_work_sync(&hda->probe_work);
2452 		device_lock(&pci->dev);
2453 
2454 		clear_bit(chip->dev_index, probed_devs);
2455 		pci_set_drvdata(pci, NULL);
2456 		snd_card_free(card);
2457 	}
2458 }
2459 
2460 static void azx_shutdown(struct pci_dev *pci)
2461 {
2462 	struct snd_card *card = pci_get_drvdata(pci);
2463 	struct azx *chip;
2464 
2465 	if (!card)
2466 		return;
2467 	chip = card->private_data;
2468 	if (chip && chip->running)
2469 		__azx_shutdown_chip(chip, true);
2470 }
2471 
2472 /* PCI IDs */
2473 static const struct pci_device_id azx_ids[] = {
2474 	/* CPT */
2475 	{ PCI_DEVICE_DATA(INTEL, HDA_CPT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2476 	/* PBG */
2477 	{ PCI_DEVICE_DATA(INTEL, HDA_PBG, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2478 	/* Panther Point */
2479 	{ PCI_DEVICE_DATA(INTEL, HDA_PPT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2480 	/* Lynx Point */
2481 	{ PCI_DEVICE_DATA(INTEL, HDA_LPT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2482 	/* 9 Series */
2483 	{ PCI_DEVICE_DATA(INTEL, HDA_9_SERIES, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2484 	/* Wellsburg */
2485 	{ PCI_DEVICE_DATA(INTEL, HDA_WBG_0, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2486 	{ PCI_DEVICE_DATA(INTEL, HDA_WBG_1, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2487 	/* Lewisburg */
2488 	{ PCI_DEVICE_DATA(INTEL, HDA_LBG_0, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE) },
2489 	{ PCI_DEVICE_DATA(INTEL, HDA_LBG_1, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE) },
2490 	/* Lynx Point-LP */
2491 	{ PCI_DEVICE_DATA(INTEL, HDA_LPT_LP_0, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2492 	/* Lynx Point-LP */
2493 	{ PCI_DEVICE_DATA(INTEL, HDA_LPT_LP_1, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2494 	/* Wildcat Point-LP */
2495 	{ PCI_DEVICE_DATA(INTEL, HDA_WPT_LP, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2496 	/* Skylake (Sunrise Point) */
2497 	{ PCI_DEVICE_DATA(INTEL, HDA_SKL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2498 	/* Skylake-LP (Sunrise Point-LP) */
2499 	{ PCI_DEVICE_DATA(INTEL, HDA_SKL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2500 	/* Kabylake */
2501 	{ PCI_DEVICE_DATA(INTEL, HDA_KBL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2502 	/* Kabylake-LP */
2503 	{ PCI_DEVICE_DATA(INTEL, HDA_KBL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2504 	/* Kabylake-H */
2505 	{ PCI_DEVICE_DATA(INTEL, HDA_KBL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2506 	/* Coffelake */
2507 	{ PCI_DEVICE_DATA(INTEL, HDA_CNL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2508 	/* Cannonlake */
2509 	{ PCI_DEVICE_DATA(INTEL, HDA_CNL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2510 	/* CometLake-LP */
2511 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2512 	/* CometLake-H */
2513 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2514 	{ PCI_DEVICE_DATA(INTEL, HDA_RKL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2515 	/* CometLake-S */
2516 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2517 	/* CometLake-R */
2518 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_R, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2519 	/* Icelake */
2520 	{ PCI_DEVICE_DATA(INTEL, HDA_ICL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2521 	/* Icelake-H */
2522 	{ PCI_DEVICE_DATA(INTEL, HDA_ICL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2523 	/* Jasperlake */
2524 	{ PCI_DEVICE_DATA(INTEL, HDA_ICL_N, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2525 	{ PCI_DEVICE_DATA(INTEL, HDA_JSL_N, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2526 	/* Tigerlake */
2527 	{ PCI_DEVICE_DATA(INTEL, HDA_TGL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2528 	/* Tigerlake-H */
2529 	{ PCI_DEVICE_DATA(INTEL, HDA_TGL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2530 	/* DG1 */
2531 	{ PCI_DEVICE_DATA(INTEL, HDA_DG1, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2532 	/* DG2 */
2533 	{ PCI_DEVICE_DATA(INTEL, HDA_DG2_0, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2534 	{ PCI_DEVICE_DATA(INTEL, HDA_DG2_1, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2535 	{ PCI_DEVICE_DATA(INTEL, HDA_DG2_2, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2536 	/* Alderlake-S */
2537 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2538 	/* Alderlake-P */
2539 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_P, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2540 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_PS, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2541 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_PX, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2542 	/* Alderlake-M */
2543 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_M, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2544 	/* Alderlake-N */
2545 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_N, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2546 	/* Elkhart Lake */
2547 	{ PCI_DEVICE_DATA(INTEL, HDA_EHL_0, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2548 	{ PCI_DEVICE_DATA(INTEL, HDA_EHL_3, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2549 	/* Raptor Lake */
2550 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2551 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_P_0, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2552 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_P_1, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2553 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_M, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2554 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_PX, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2555 	{ PCI_DEVICE_DATA(INTEL, HDA_MTL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2556 	/* Battlemage */
2557 	{ PCI_DEVICE_DATA(INTEL, HDA_BMG, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2558 	/* Lunarlake-P */
2559 	{ PCI_DEVICE_DATA(INTEL, HDA_LNL_P, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_LNL) },
2560 	/* Arrow Lake-S */
2561 	{ PCI_DEVICE_DATA(INTEL, HDA_ARL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2562 	/* Arrow Lake */
2563 	{ PCI_DEVICE_DATA(INTEL, HDA_ARL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2564 	/* Panther Lake */
2565 	{ PCI_DEVICE_DATA(INTEL, HDA_PTL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_LNL) },
2566 	/* Panther Lake-H */
2567 	{ PCI_DEVICE_DATA(INTEL, HDA_PTL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_LNL) },
2568 	/* Wildcat Lake */
2569 	{ PCI_DEVICE_DATA(INTEL, HDA_WCL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_LNL) },
2570 	/* Nova Lake */
2571 	{ PCI_DEVICE_DATA(INTEL, HDA_NVL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_NVL) },
2572 	{ PCI_DEVICE_DATA(INTEL, HDA_NVL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_NVL) },
2573 	/* Apollolake (Broxton-P) */
2574 	{ PCI_DEVICE_DATA(INTEL, HDA_APL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON) },
2575 	/* Gemini-Lake */
2576 	{ PCI_DEVICE_DATA(INTEL, HDA_GLK, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON) },
2577 	/* Haswell */
2578 	{ PCI_DEVICE_DATA(INTEL, HDA_HSW_0, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL) },
2579 	{ PCI_DEVICE_DATA(INTEL, HDA_HSW_2, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL) },
2580 	{ PCI_DEVICE_DATA(INTEL, HDA_HSW_3, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL) },
2581 	/* Broadwell */
2582 	{ PCI_DEVICE_DATA(INTEL, HDA_BDW, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL) },
2583 	/* 5 Series/3400 */
2584 	{ PCI_DEVICE_DATA(INTEL, HDA_5_3400_SERIES_0, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2585 	{ PCI_DEVICE_DATA(INTEL, HDA_5_3400_SERIES_1, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2586 	/* Poulsbo */
2587 	{ PCI_DEVICE_DATA(INTEL, HDA_POULSBO, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE |
2588 	  AZX_DCAPS_POSFIX_LPIB) },
2589 	/* Oaktrail */
2590 	{ PCI_DEVICE_DATA(INTEL, HDA_OAKTRAIL, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE) },
2591 	/* BayTrail */
2592 	{ PCI_DEVICE_DATA(INTEL, HDA_BYT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL) },
2593 	/* Braswell */
2594 	{ PCI_DEVICE_DATA(INTEL, HDA_BSW, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL) },
2595 	/* ICH6 */
2596 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH6, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2597 	/* ICH7 */
2598 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH7, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2599 	/* ESB2 */
2600 	{ PCI_DEVICE_DATA(INTEL, HDA_ESB2, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2601 	/* ICH8 */
2602 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH8, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2603 	/* ICH9 */
2604 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH9_0, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2605 	/* ICH9 */
2606 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH9_1, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2607 	/* ICH10 */
2608 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH10_0, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2609 	/* ICH10 */
2610 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH10_1, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2611 	/* Generic Intel */
2612 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2613 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2614 	  .class_mask = 0xffffff,
2615 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2616 	/* ATI SB 450/600/700/800/900 */
2617 	{ PCI_VDEVICE(ATI, 0x437b),
2618 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2619 	{ PCI_VDEVICE(ATI, 0x4383),
2620 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2621 	/* AMD Hudson */
2622 	{ PCI_VDEVICE(AMD, 0x780d),
2623 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2624 	/* AMD, X370 & co */
2625 	{ PCI_VDEVICE(AMD, 0x1457),
2626 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2627 	/* AMD, X570 & co */
2628 	{ PCI_VDEVICE(AMD, 0x1487),
2629 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2630 	/* AMD Stoney */
2631 	{ PCI_VDEVICE(AMD, 0x157a),
2632 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2633 			 AZX_DCAPS_PM_RUNTIME },
2634 	/* AMD Raven */
2635 	{ PCI_VDEVICE(AMD, 0x15e3),
2636 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2637 	/* ATI HDMI */
2638 	{ PCI_VDEVICE(ATI, 0x0002),
2639 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2640 	  AZX_DCAPS_PM_RUNTIME },
2641 	{ PCI_VDEVICE(ATI, 0x1308),
2642 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2643 	{ PCI_VDEVICE(ATI, 0x157a),
2644 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2645 	{ PCI_VDEVICE(ATI, 0x15b3),
2646 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2647 	{ PCI_VDEVICE(ATI, 0x793b),
2648 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2649 	{ PCI_VDEVICE(ATI, 0x7919),
2650 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2651 	{ PCI_VDEVICE(ATI, 0x960f),
2652 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2653 	{ PCI_VDEVICE(ATI, 0x970f),
2654 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2655 	{ PCI_VDEVICE(ATI, 0x9840),
2656 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2657 	{ PCI_VDEVICE(ATI, 0xaa00),
2658 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2659 	{ PCI_VDEVICE(ATI, 0xaa08),
2660 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2661 	{ PCI_VDEVICE(ATI, 0xaa10),
2662 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2663 	{ PCI_VDEVICE(ATI, 0xaa18),
2664 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2665 	{ PCI_VDEVICE(ATI, 0xaa20),
2666 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2667 	{ PCI_VDEVICE(ATI, 0xaa28),
2668 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2669 	{ PCI_VDEVICE(ATI, 0xaa30),
2670 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2671 	{ PCI_VDEVICE(ATI, 0xaa38),
2672 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2673 	{ PCI_VDEVICE(ATI, 0xaa40),
2674 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2675 	{ PCI_VDEVICE(ATI, 0xaa48),
2676 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2677 	{ PCI_VDEVICE(ATI, 0xaa50),
2678 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2679 	{ PCI_VDEVICE(ATI, 0xaa58),
2680 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2681 	{ PCI_VDEVICE(ATI, 0xaa60),
2682 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2683 	{ PCI_VDEVICE(ATI, 0xaa68),
2684 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2685 	{ PCI_VDEVICE(ATI, 0xaa80),
2686 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2687 	{ PCI_VDEVICE(ATI, 0xaa88),
2688 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2689 	{ PCI_VDEVICE(ATI, 0xaa90),
2690 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2691 	{ PCI_VDEVICE(ATI, 0xaa98),
2692 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2693 	{ PCI_VDEVICE(ATI, 0x9902),
2694 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2695 	{ PCI_VDEVICE(ATI, 0xaaa0),
2696 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2697 	{ PCI_VDEVICE(ATI, 0xaaa8),
2698 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2699 	{ PCI_VDEVICE(ATI, 0xaab0),
2700 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2701 	{ PCI_VDEVICE(ATI, 0xaac0),
2702 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2703 	  AZX_DCAPS_PM_RUNTIME },
2704 	{ PCI_VDEVICE(ATI, 0xaac8),
2705 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2706 	  AZX_DCAPS_PM_RUNTIME },
2707 	{ PCI_VDEVICE(ATI, 0xaad8),
2708 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2709 	  AZX_DCAPS_PM_RUNTIME },
2710 	{ PCI_VDEVICE(ATI, 0xaae0),
2711 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2712 	  AZX_DCAPS_PM_RUNTIME },
2713 	{ PCI_VDEVICE(ATI, 0xaae8),
2714 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2715 	  AZX_DCAPS_PM_RUNTIME },
2716 	{ PCI_VDEVICE(ATI, 0xaaf0),
2717 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2718 	  AZX_DCAPS_PM_RUNTIME },
2719 	{ PCI_VDEVICE(ATI, 0xaaf8),
2720 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2721 	  AZX_DCAPS_PM_RUNTIME },
2722 	{ PCI_VDEVICE(ATI, 0xab00),
2723 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2724 	  AZX_DCAPS_PM_RUNTIME },
2725 	{ PCI_VDEVICE(ATI, 0xab08),
2726 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2727 	  AZX_DCAPS_PM_RUNTIME },
2728 	{ PCI_VDEVICE(ATI, 0xab10),
2729 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2730 	  AZX_DCAPS_PM_RUNTIME },
2731 	{ PCI_VDEVICE(ATI, 0xab18),
2732 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2733 	  AZX_DCAPS_PM_RUNTIME },
2734 	{ PCI_VDEVICE(ATI, 0xab20),
2735 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2736 	  AZX_DCAPS_PM_RUNTIME },
2737 	{ PCI_VDEVICE(ATI, 0xab28),
2738 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2739 	  AZX_DCAPS_PM_RUNTIME },
2740 	{ PCI_VDEVICE(ATI, 0xab30),
2741 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2742 	  AZX_DCAPS_PM_RUNTIME },
2743 	{ PCI_VDEVICE(ATI, 0xab38),
2744 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2745 	  AZX_DCAPS_PM_RUNTIME },
2746 	{ PCI_VDEVICE(ATI, 0xab40),
2747 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2748 	  AZX_DCAPS_PM_RUNTIME },
2749 	/* GLENFLY */
2750 	{ PCI_DEVICE(PCI_VENDOR_ID_GLENFLY, PCI_ANY_ID),
2751 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2752 	  .class_mask = 0xffffff,
2753 	  .driver_data = AZX_DRIVER_GFHDMI | AZX_DCAPS_POSFIX_LPIB |
2754 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2755 	/* VIA VT8251/VT8237A */
2756 	{ PCI_VDEVICE(VIA, 0x3288), .driver_data = AZX_DRIVER_VIA },
2757 	/* VIA GFX VT7122/VX900 */
2758 	{ PCI_VDEVICE(VIA, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2759 	/* VIA GFX VT6122/VX11 */
2760 	{ PCI_VDEVICE(VIA, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2761 	/* SIS966 */
2762 	{ PCI_VDEVICE(SI, 0x7502), .driver_data = AZX_DRIVER_SIS },
2763 	/* ULI M5461 */
2764 	{ PCI_VDEVICE(AL, 0x5461), .driver_data = AZX_DRIVER_ULI },
2765 	/* NVIDIA MCP */
2766 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2767 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2768 	  .class_mask = 0xffffff,
2769 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2770 	/* Teradici */
2771 	{ PCI_DEVICE(0x6549, 0x1200),
2772 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2773 	{ PCI_DEVICE(0x6549, 0x2200),
2774 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2775 	/* Creative X-Fi (CA0110-IBG) */
2776 	/* CTHDA chips */
2777 	{ PCI_VDEVICE(CREATIVE, 0x0010),
2778 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2779 	{ PCI_VDEVICE(CREATIVE, 0x0012),
2780 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2781 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2782 	/* the following entry conflicts with snd-ctxfi driver,
2783 	 * as ctxfi driver mutates from HD-audio to native mode with
2784 	 * a special command sequence.
2785 	 */
2786 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2787 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2788 	  .class_mask = 0xffffff,
2789 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2790 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2791 #else
2792 	/* this entry seems still valid -- i.e. without emu20kx chip */
2793 	{ PCI_VDEVICE(CREATIVE, 0x0009),
2794 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2795 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2796 #endif
2797 	/* CM8888 */
2798 	{ PCI_VDEVICE(CMEDIA, 0x5011),
2799 	  .driver_data = AZX_DRIVER_CMEDIA |
2800 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2801 	/* Vortex86MX */
2802 	{ PCI_VDEVICE(RDC, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2803 	/* VMware HDAudio */
2804 	{ PCI_VDEVICE(VMWARE, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2805 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2806 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2807 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2808 	  .class_mask = 0xffffff,
2809 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2810 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2811 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2812 	  .class_mask = 0xffffff,
2813 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2814 	/* Zhaoxin */
2815 	{ PCI_VDEVICE(ZHAOXIN, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2816 	{ PCI_VDEVICE(ZHAOXIN, 0x9141),
2817 	 .driver_data = AZX_DRIVER_ZHAOXINHDMI | AZX_DCAPS_POSFIX_LPIB |
2818 	 AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2819 	{ PCI_VDEVICE(ZHAOXIN, 0x9142),
2820 	 .driver_data = AZX_DRIVER_ZHAOXINHDMI | AZX_DCAPS_POSFIX_LPIB |
2821 	 AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2822 	{ PCI_VDEVICE(ZHAOXIN, 0x9144),
2823 	 .driver_data = AZX_DRIVER_ZHAOXINHDMI | AZX_DCAPS_POSFIX_LPIB |
2824 	 AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2825 	{ PCI_VDEVICE(ZHAOXIN, 0x9145),
2826 	 .driver_data = AZX_DRIVER_ZHAOXINHDMI | AZX_DCAPS_POSFIX_LPIB |
2827 	 AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2828 	{ PCI_VDEVICE(ZHAOXIN, 0x9146),
2829 	 .driver_data = AZX_DRIVER_ZHAOXINHDMI | AZX_DCAPS_POSFIX_LPIB |
2830 	 AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2831 	/* Loongson HDAudio*/
2832 	{ PCI_VDEVICE(LOONGSON, PCI_DEVICE_ID_LOONGSON_HDA),
2833 	  .driver_data = AZX_DRIVER_LOONGSON | AZX_DCAPS_NO_TCSEL },
2834 	{ PCI_VDEVICE(LOONGSON, PCI_DEVICE_ID_LOONGSON_HDMI),
2835 	  .driver_data = AZX_DRIVER_LOONGSON | AZX_DCAPS_NO_TCSEL },
2836 	{ 0, }
2837 };
2838 MODULE_DEVICE_TABLE(pci, azx_ids);
2839 
2840 /* pci_driver definition */
2841 static struct pci_driver azx_driver = {
2842 	.name = KBUILD_MODNAME,
2843 	.id_table = azx_ids,
2844 	.probe = azx_probe,
2845 	.remove = azx_remove,
2846 	.shutdown = azx_shutdown,
2847 	.driver = {
2848 		.pm = pm_ptr(&azx_pm),
2849 	},
2850 };
2851 
2852 module_pci_driver(azx_driver);
2853