xref: /linux/sound/hda/controllers/intel.c (revision 0bd0a41a5120f78685a132834865b0a631b9026a)
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 /* quirks for ATI SB / AMD Hudson */
299 #define AZX_DCAPS_PRESET_ATI_SB \
300 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB |\
301 	 AZX_DCAPS_SNOOP_TYPE(ATI))
302 
303 /* quirks for ATI/AMD HDMI */
304 #define AZX_DCAPS_PRESET_ATI_HDMI \
305 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB|\
306 	 AZX_DCAPS_NO_MSI64)
307 
308 /* quirks for ATI HDMI with snoop off */
309 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
310 	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
311 
312 /* quirks for AMD SB */
313 #define AZX_DCAPS_PRESET_AMD_SB \
314 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
315 	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME |\
316 	 AZX_DCAPS_RETRY_PROBE)
317 
318 /* quirks for Nvidia */
319 #define AZX_DCAPS_PRESET_NVIDIA \
320 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
321 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
322 
323 #define AZX_DCAPS_PRESET_CTHDA \
324 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
325 	 AZX_DCAPS_NO_64BIT |\
326 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
327 
328 /*
329  * vga_switcheroo support
330  */
331 #ifdef SUPPORT_VGA_SWITCHEROO
332 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
333 #define needs_eld_notify_link(chip)	((chip)->bus.keep_power)
334 #else
335 #define use_vga_switcheroo(chip)	0
336 #define needs_eld_notify_link(chip)	false
337 #endif
338 
339 static const char * const driver_short_names[] = {
340 	[AZX_DRIVER_ICH] = "HDA Intel",
341 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
342 	[AZX_DRIVER_SCH] = "HDA Intel MID",
343 	[AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
344 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
345 	[AZX_DRIVER_ATI] = "HDA ATI SB",
346 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
347 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
348 	[AZX_DRIVER_GFHDMI] = "HDA GF HDMI",
349 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
350 	[AZX_DRIVER_SIS] = "HDA SIS966",
351 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
352 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
353 	[AZX_DRIVER_TERA] = "HDA Teradici",
354 	[AZX_DRIVER_CTX] = "HDA Creative",
355 	[AZX_DRIVER_CTHDA] = "HDA Creative",
356 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
357 	[AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
358 	[AZX_DRIVER_ZHAOXINHDMI] = "HDA Zhaoxin HDMI",
359 	[AZX_DRIVER_LOONGSON] = "HDA Loongson",
360 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
361 };
362 
363 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
364 static void set_default_power_save(struct azx *chip);
365 
366 /*
367  * initialize the PCI registers
368  */
369 /* update bits in a PCI register byte */
update_pci_byte(struct pci_dev * pci,unsigned int reg,unsigned char mask,unsigned char val)370 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
371 			    unsigned char mask, unsigned char val)
372 {
373 	unsigned char data;
374 
375 	pci_read_config_byte(pci, reg, &data);
376 	data &= ~mask;
377 	data |= (val & mask);
378 	pci_write_config_byte(pci, reg, data);
379 }
380 
azx_init_pci(struct azx * chip)381 static void azx_init_pci(struct azx *chip)
382 {
383 	int snoop_type = azx_get_snoop_type(chip);
384 
385 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
386 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
387 	 * Ensuring these bits are 0 clears playback static on some HD Audio
388 	 * codecs.
389 	 * The PCI register TCSEL is defined in the Intel manuals.
390 	 */
391 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
392 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
393 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
394 	}
395 
396 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
397 	 * we need to enable snoop.
398 	 */
399 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
400 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
401 			azx_snoop(chip));
402 		update_pci_byte(chip->pci,
403 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
404 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
405 	}
406 
407 	/* For NVIDIA HDA, enable snoop */
408 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
409 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
410 			azx_snoop(chip));
411 		update_pci_byte(chip->pci,
412 				NVIDIA_HDA_TRANSREG_ADDR,
413 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
414 		update_pci_byte(chip->pci,
415 				NVIDIA_HDA_ISTRM_COH,
416 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
417 		update_pci_byte(chip->pci,
418 				NVIDIA_HDA_OSTRM_COH,
419 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
420 	}
421 
422 	/* Enable SCH/PCH snoop if needed */
423 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
424 		unsigned short snoop;
425 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
426 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
427 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
428 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
429 			if (!azx_snoop(chip))
430 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
431 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
432 			pci_read_config_word(chip->pci,
433 				INTEL_SCH_HDA_DEVC, &snoop);
434 		}
435 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
436 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
437 			"Disabled" : "Enabled");
438         }
439 }
440 
441 /*
442  * In BXT-P A0, HD-Audio DMA requests is later than expected,
443  * and makes an audio stream sensitive to system latencies when
444  * 24/32 bits are playing.
445  * Adjusting threshold of DMA fifo to force the DMA request
446  * sooner to improve latency tolerance at the expense of power.
447  */
bxt_reduce_dma_latency(struct azx * chip)448 static void bxt_reduce_dma_latency(struct azx *chip)
449 {
450 	u32 val;
451 
452 	val = azx_readl(chip, VS_EM4L);
453 	val &= (0x3 << 20);
454 	azx_writel(chip, VS_EM4L, val);
455 }
456 
457 /*
458  * ML_LCAP bits:
459  *  bit 0: 6 MHz Supported
460  *  bit 1: 12 MHz Supported
461  *  bit 2: 24 MHz Supported
462  *  bit 3: 48 MHz Supported
463  *  bit 4: 96 MHz Supported
464  *  bit 5: 192 MHz Supported
465  */
intel_get_lctl_scf(struct azx * chip)466 static int intel_get_lctl_scf(struct azx *chip)
467 {
468 	struct hdac_bus *bus = azx_bus(chip);
469 	static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
470 	u32 val, t;
471 	int i;
472 
473 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
474 
475 	for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
476 		t = preferred_bits[i];
477 		if (val & (1 << t))
478 			return t;
479 	}
480 
481 	dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
482 	return 0;
483 }
484 
intel_ml_lctl_set_power(struct azx * chip,int state)485 static int intel_ml_lctl_set_power(struct azx *chip, int state)
486 {
487 	struct hdac_bus *bus = azx_bus(chip);
488 	u32 val;
489 	int timeout;
490 
491 	/*
492 	 * Changes to LCTL.SCF are only needed for the first multi-link dealing
493 	 * with external codecs
494 	 */
495 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
496 	val &= ~AZX_ML_LCTL_SPA;
497 	val |= state << AZX_ML_LCTL_SPA_SHIFT;
498 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
499 	/* wait for CPA */
500 	timeout = 50;
501 	while (timeout) {
502 		if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
503 		    AZX_ML_LCTL_CPA) == (state << AZX_ML_LCTL_CPA_SHIFT))
504 			return 0;
505 		timeout--;
506 		udelay(10);
507 	}
508 
509 	return -1;
510 }
511 
intel_init_lctl(struct azx * chip)512 static void intel_init_lctl(struct azx *chip)
513 {
514 	struct hdac_bus *bus = azx_bus(chip);
515 	u32 val;
516 	int ret;
517 
518 	/* 0. check lctl register value is correct or not */
519 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
520 	/* only perform additional configurations if the SCF is initially based on 6MHz */
521 	if ((val & AZX_ML_LCTL_SCF) != 0)
522 		return;
523 
524 	/*
525 	 * Before operating on SPA, CPA must match SPA.
526 	 * Any deviation may result in undefined behavior.
527 	 */
528 	if (((val & AZX_ML_LCTL_SPA) >> AZX_ML_LCTL_SPA_SHIFT) !=
529 		((val & AZX_ML_LCTL_CPA) >> AZX_ML_LCTL_CPA_SHIFT))
530 		return;
531 
532 	/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
533 	ret = intel_ml_lctl_set_power(chip, 0);
534 	udelay(100);
535 	if (ret)
536 		goto set_spa;
537 
538 	/* 2. update SCF to select an audio clock different from 6MHz */
539 	val &= ~AZX_ML_LCTL_SCF;
540 	val |= intel_get_lctl_scf(chip);
541 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
542 
543 set_spa:
544 	/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
545 	intel_ml_lctl_set_power(chip, 1);
546 	udelay(100);
547 }
548 
hda_intel_init_chip(struct azx * chip,bool full_reset)549 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
550 {
551 	struct hdac_bus *bus = azx_bus(chip);
552 	struct pci_dev *pci = chip->pci;
553 	u32 val;
554 
555 	snd_hdac_set_codec_wakeup(bus, true);
556 	if (chip->driver_type == AZX_DRIVER_SKL) {
557 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
558 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
559 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
560 	}
561 	azx_init_chip(chip, full_reset);
562 	if (chip->driver_type == AZX_DRIVER_SKL) {
563 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
564 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
565 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
566 	}
567 
568 	snd_hdac_set_codec_wakeup(bus, false);
569 
570 	/* reduce dma latency to avoid noise */
571 	if (HDA_CONTROLLER_IS_APL(pci))
572 		bxt_reduce_dma_latency(chip);
573 
574 	if (bus->mlcap != NULL)
575 		intel_init_lctl(chip);
576 }
577 
578 /* calculate runtime delay from LPIB */
azx_get_delay_from_lpib(struct azx * chip,struct azx_dev * azx_dev,unsigned int pos)579 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
580 				   unsigned int pos)
581 {
582 	struct snd_pcm_substream *substream = azx_dev->core.substream;
583 	int stream = substream->stream;
584 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
585 	int delay;
586 
587 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
588 		delay = pos - lpib_pos;
589 	else
590 		delay = lpib_pos - pos;
591 	if (delay < 0) {
592 		if (delay >= azx_dev->core.delay_negative_threshold)
593 			delay = 0;
594 		else
595 			delay += azx_dev->core.bufsize;
596 	}
597 
598 	if (delay >= azx_dev->core.period_bytes) {
599 		dev_info(chip->card->dev,
600 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
601 			 delay, azx_dev->core.period_bytes);
602 		delay = 0;
603 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
604 		chip->get_delay[stream] = NULL;
605 	}
606 
607 	return bytes_to_frames(substream->runtime, delay);
608 }
609 
610 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
611 
612 /* called from IRQ */
azx_position_check(struct azx * chip,struct azx_dev * azx_dev)613 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
614 {
615 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
616 	int ok;
617 
618 	ok = azx_position_ok(chip, azx_dev);
619 	if (ok == 1) {
620 		azx_dev->irq_pending = 0;
621 		return ok;
622 	} else if (ok == 0) {
623 		/* bogus IRQ, process it later */
624 		azx_dev->irq_pending = 1;
625 		schedule_work(&hda->irq_pending_work);
626 	}
627 	return 0;
628 }
629 
630 #define display_power(chip, enable) \
631 	snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
632 
633 /*
634  * Check whether the current DMA position is acceptable for updating
635  * periods.  Returns non-zero if it's OK.
636  *
637  * Many HD-audio controllers appear pretty inaccurate about
638  * the update-IRQ timing.  The IRQ is issued before actually the
639  * data is processed.  So, we need to process it afterwords in a
640  * workqueue.
641  *
642  * Returns 1 if OK to proceed, 0 for delay handling, -1 for skipping update
643  */
azx_position_ok(struct azx * chip,struct azx_dev * azx_dev)644 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
645 {
646 	struct snd_pcm_substream *substream = azx_dev->core.substream;
647 	struct snd_pcm_runtime *runtime = substream->runtime;
648 	int stream = substream->stream;
649 	u32 wallclk;
650 	unsigned int pos;
651 	snd_pcm_uframes_t hwptr, target;
652 
653 	/*
654 	 * The value of the WALLCLK register is always 0
655 	 * on the Loongson controller, so we return directly.
656 	 */
657 	if (chip->driver_type == AZX_DRIVER_LOONGSON)
658 		return 1;
659 
660 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
661 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
662 		return -1;	/* bogus (too early) interrupt */
663 
664 	if (chip->get_position[stream])
665 		pos = chip->get_position[stream](chip, azx_dev);
666 	else { /* use the position buffer as default */
667 		pos = azx_get_pos_posbuf(chip, azx_dev);
668 		if (!pos || pos == (u32)-1) {
669 			dev_info(chip->card->dev,
670 				 "Invalid position buffer, using LPIB read method instead.\n");
671 			chip->get_position[stream] = azx_get_pos_lpib;
672 			if (chip->get_position[0] == azx_get_pos_lpib &&
673 			    chip->get_position[1] == azx_get_pos_lpib)
674 				azx_bus(chip)->use_posbuf = false;
675 			pos = azx_get_pos_lpib(chip, azx_dev);
676 			chip->get_delay[stream] = NULL;
677 		} else {
678 			chip->get_position[stream] = azx_get_pos_posbuf;
679 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
680 				chip->get_delay[stream] = azx_get_delay_from_lpib;
681 		}
682 	}
683 
684 	if (pos >= azx_dev->core.bufsize)
685 		pos = 0;
686 
687 	if (WARN_ONCE(!azx_dev->core.period_bytes,
688 		      "hda-intel: zero azx_dev->period_bytes"))
689 		return -1; /* this shouldn't happen! */
690 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
691 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
692 		/* NG - it's below the first next period boundary */
693 		return chip->bdl_pos_adj ? 0 : -1;
694 	azx_dev->core.start_wallclk += wallclk;
695 
696 	if (azx_dev->core.no_period_wakeup)
697 		return 1; /* OK, no need to check period boundary */
698 
699 	if (runtime->hw_ptr_base != runtime->hw_ptr_interrupt)
700 		return 1; /* OK, already in hwptr updating process */
701 
702 	/* check whether the period gets really elapsed */
703 	pos = bytes_to_frames(runtime, pos);
704 	hwptr = runtime->hw_ptr_base + pos;
705 	if (hwptr < runtime->status->hw_ptr)
706 		hwptr += runtime->buffer_size;
707 	target = runtime->hw_ptr_interrupt + runtime->period_size;
708 	if (hwptr < target) {
709 		/* too early wakeup, process it later */
710 		return chip->bdl_pos_adj ? 0 : -1;
711 	}
712 
713 	return 1; /* OK, it's fine */
714 }
715 
716 /*
717  * The work for pending PCM period updates.
718  */
azx_irq_pending_work(struct work_struct * work)719 static void azx_irq_pending_work(struct work_struct *work)
720 {
721 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
722 	struct azx *chip = &hda->chip;
723 	struct hdac_bus *bus = azx_bus(chip);
724 	struct hdac_stream *s;
725 	int pending, ok;
726 
727 	if (!hda->irq_pending_warned) {
728 		dev_info(chip->card->dev,
729 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
730 			 chip->card->number);
731 		hda->irq_pending_warned = 1;
732 	}
733 
734 	for (;;) {
735 		pending = 0;
736 		spin_lock_irq(&bus->reg_lock);
737 		list_for_each_entry(s, &bus->stream_list, list) {
738 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
739 			if (!azx_dev->irq_pending ||
740 			    !s->substream ||
741 			    !s->running)
742 				continue;
743 			ok = azx_position_ok(chip, azx_dev);
744 			if (ok > 0) {
745 				azx_dev->irq_pending = 0;
746 				spin_unlock(&bus->reg_lock);
747 				snd_pcm_period_elapsed(s->substream);
748 				spin_lock(&bus->reg_lock);
749 			} else if (ok < 0) {
750 				pending = 0;	/* too early */
751 			} else
752 				pending++;
753 		}
754 		spin_unlock_irq(&bus->reg_lock);
755 		if (!pending)
756 			return;
757 		msleep(1);
758 	}
759 }
760 
761 /* clear irq_pending flags and assure no on-going workq */
azx_clear_irq_pending(struct azx * chip)762 static void azx_clear_irq_pending(struct azx *chip)
763 {
764 	struct hdac_bus *bus = azx_bus(chip);
765 	struct hdac_stream *s;
766 
767 	spin_lock_irq(&bus->reg_lock);
768 	list_for_each_entry(s, &bus->stream_list, list) {
769 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
770 		azx_dev->irq_pending = 0;
771 	}
772 	spin_unlock_irq(&bus->reg_lock);
773 }
774 
azx_acquire_irq(struct azx * chip,int do_disconnect)775 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
776 {
777 	struct hdac_bus *bus = azx_bus(chip);
778 	int ret;
779 
780 	if (!chip->msi || pci_alloc_irq_vectors(chip->pci, 1, 1, PCI_IRQ_MSI) < 0) {
781 		ret = pci_alloc_irq_vectors(chip->pci, 1, 1, PCI_IRQ_INTX);
782 		if (ret < 0)
783 			return ret;
784 		chip->msi = 0;
785 	}
786 
787 	if (request_irq(chip->pci->irq, azx_interrupt,
788 			chip->msi ? 0 : IRQF_SHARED,
789 			chip->card->irq_descr, chip)) {
790 		dev_err(chip->card->dev,
791 			"unable to grab IRQ %d, disabling device\n",
792 			chip->pci->irq);
793 		if (do_disconnect)
794 			snd_card_disconnect(chip->card);
795 		return -1;
796 	}
797 	bus->irq = chip->pci->irq;
798 	chip->card->sync_irq = bus->irq;
799 	return 0;
800 }
801 
802 /* get the current DMA position with correction on VIA chips */
azx_via_get_position(struct azx * chip,struct azx_dev * azx_dev)803 static unsigned int azx_via_get_position(struct azx *chip,
804 					 struct azx_dev *azx_dev)
805 {
806 	unsigned int link_pos, mini_pos, bound_pos;
807 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
808 	unsigned int fifo_size;
809 
810 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
811 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
812 		/* Playback, no problem using link position */
813 		return link_pos;
814 	}
815 
816 	/* Capture */
817 	/* For new chipset,
818 	 * use mod to get the DMA position just like old chipset
819 	 */
820 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
821 	mod_dma_pos %= azx_dev->core.period_bytes;
822 
823 	fifo_size = azx_stream(azx_dev)->fifo_size;
824 
825 	if (azx_dev->insufficient) {
826 		/* Link position never gather than FIFO size */
827 		if (link_pos <= fifo_size)
828 			return 0;
829 
830 		azx_dev->insufficient = 0;
831 	}
832 
833 	if (link_pos <= fifo_size)
834 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
835 	else
836 		mini_pos = link_pos - fifo_size;
837 
838 	/* Find nearest previous boudary */
839 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
840 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
841 	if (mod_link_pos >= fifo_size)
842 		bound_pos = link_pos - mod_link_pos;
843 	else if (mod_dma_pos >= mod_mini_pos)
844 		bound_pos = mini_pos - mod_mini_pos;
845 	else {
846 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
847 		if (bound_pos >= azx_dev->core.bufsize)
848 			bound_pos = 0;
849 	}
850 
851 	/* Calculate real DMA position we want */
852 	return bound_pos + mod_dma_pos;
853 }
854 
855 #define AMD_FIFO_SIZE	32
856 
857 /* get the current DMA position with FIFO size correction */
azx_get_pos_fifo(struct azx * chip,struct azx_dev * azx_dev)858 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
859 {
860 	struct snd_pcm_substream *substream = azx_dev->core.substream;
861 	struct snd_pcm_runtime *runtime = substream->runtime;
862 	unsigned int pos, delay;
863 
864 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
865 	if (!runtime)
866 		return pos;
867 
868 	runtime->delay = AMD_FIFO_SIZE;
869 	delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
870 	if (azx_dev->insufficient) {
871 		if (pos < delay) {
872 			delay = pos;
873 			runtime->delay = bytes_to_frames(runtime, pos);
874 		} else {
875 			azx_dev->insufficient = 0;
876 		}
877 	}
878 
879 	/* correct the DMA position for capture stream */
880 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
881 		if (pos < delay)
882 			pos += azx_dev->core.bufsize;
883 		pos -= delay;
884 	}
885 
886 	return pos;
887 }
888 
azx_get_delay_from_fifo(struct azx * chip,struct azx_dev * azx_dev,unsigned int pos)889 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
890 				   unsigned int pos)
891 {
892 	struct snd_pcm_substream *substream = azx_dev->core.substream;
893 
894 	/* just read back the calculated value in the above */
895 	return substream->runtime->delay;
896 }
897 
__azx_shutdown_chip(struct azx * chip,bool skip_link_reset)898 static void __azx_shutdown_chip(struct azx *chip, bool skip_link_reset)
899 {
900 	azx_stop_chip(chip);
901 	if (!skip_link_reset)
902 		azx_enter_link_reset(chip);
903 	azx_clear_irq_pending(chip);
904 	display_power(chip, false);
905 }
906 
907 static DEFINE_MUTEX(card_list_lock);
908 static LIST_HEAD(card_list);
909 
azx_shutdown_chip(struct azx * chip)910 static void azx_shutdown_chip(struct azx *chip)
911 {
912 	__azx_shutdown_chip(chip, false);
913 }
914 
azx_add_card_list(struct azx * chip)915 static void azx_add_card_list(struct azx *chip)
916 {
917 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
918 	mutex_lock(&card_list_lock);
919 	list_add(&hda->list, &card_list);
920 	mutex_unlock(&card_list_lock);
921 }
922 
azx_del_card_list(struct azx * chip)923 static void azx_del_card_list(struct azx *chip)
924 {
925 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
926 	mutex_lock(&card_list_lock);
927 	list_del_init(&hda->list);
928 	mutex_unlock(&card_list_lock);
929 }
930 
931 /* trigger power-save check at writing parameter */
param_set_xint(const char * val,const struct kernel_param * kp)932 static int __maybe_unused param_set_xint(const char *val, const struct kernel_param *kp)
933 {
934 	struct hda_intel *hda;
935 	struct azx *chip;
936 	int prev = power_save;
937 	int ret = param_set_int(val, kp);
938 
939 	if (ret || prev == power_save)
940 		return ret;
941 
942 	if (pm_blacklist > 0)
943 		return 0;
944 
945 	mutex_lock(&card_list_lock);
946 	list_for_each_entry(hda, &card_list, list) {
947 		chip = &hda->chip;
948 		if (!hda->probe_continued || chip->disabled ||
949 		    hda->runtime_pm_disabled)
950 			continue;
951 		snd_hda_set_power_save(&chip->bus, power_save * 1000);
952 	}
953 	mutex_unlock(&card_list_lock);
954 	return 0;
955 }
956 
957 /*
958  * power management
959  */
azx_is_pm_ready(struct snd_card * card)960 static bool azx_is_pm_ready(struct snd_card *card)
961 {
962 	struct azx *chip;
963 	struct hda_intel *hda;
964 
965 	if (!card)
966 		return false;
967 	chip = card->private_data;
968 	hda = container_of(chip, struct hda_intel, chip);
969 	if (chip->disabled || hda->init_failed || !chip->running)
970 		return false;
971 	return true;
972 }
973 
__azx_runtime_resume(struct azx * chip)974 static void __azx_runtime_resume(struct azx *chip)
975 {
976 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
977 	struct hdac_bus *bus = azx_bus(chip);
978 	struct hda_codec *codec;
979 	int status;
980 
981 	display_power(chip, true);
982 	if (hda->need_i915_power)
983 		snd_hdac_i915_set_bclk(bus);
984 
985 	/* Read STATESTS before controller reset */
986 	status = azx_readw(chip, STATESTS);
987 
988 	azx_init_pci(chip);
989 	hda_intel_init_chip(chip, true);
990 
991 	/* Avoid codec resume if runtime resume is for system suspend */
992 	if (!chip->pm_prepared) {
993 		list_for_each_codec(codec, &chip->bus) {
994 			if (codec->relaxed_resume)
995 				continue;
996 
997 			if (codec->forced_resume || (status & (1 << codec->addr)))
998 				pm_request_resume(hda_codec_dev(codec));
999 		}
1000 	}
1001 
1002 	/* power down again for link-controlled chips */
1003 	if (!hda->need_i915_power)
1004 		display_power(chip, false);
1005 }
1006 
azx_prepare(struct device * dev)1007 static int azx_prepare(struct device *dev)
1008 {
1009 	struct snd_card *card = dev_get_drvdata(dev);
1010 	struct azx *chip;
1011 
1012 	if (!azx_is_pm_ready(card))
1013 		return 0;
1014 
1015 	chip = card->private_data;
1016 	chip->pm_prepared = 1;
1017 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1018 
1019 	flush_work(&azx_bus(chip)->unsol_work);
1020 
1021 	/* HDA controller always requires different WAKEEN for runtime suspend
1022 	 * and system suspend, so don't use direct-complete here.
1023 	 */
1024 	return 0;
1025 }
1026 
azx_complete(struct device * dev)1027 static void azx_complete(struct device *dev)
1028 {
1029 	struct snd_card *card = dev_get_drvdata(dev);
1030 	struct azx *chip;
1031 
1032 	if (!azx_is_pm_ready(card))
1033 		return;
1034 
1035 	chip = card->private_data;
1036 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1037 	chip->pm_prepared = 0;
1038 }
1039 
azx_suspend(struct device * dev)1040 static int azx_suspend(struct device *dev)
1041 {
1042 	struct snd_card *card = dev_get_drvdata(dev);
1043 	struct azx *chip;
1044 
1045 	if (!azx_is_pm_ready(card))
1046 		return 0;
1047 
1048 	chip = card->private_data;
1049 	azx_shutdown_chip(chip);
1050 
1051 	trace_azx_suspend(chip);
1052 	return 0;
1053 }
1054 
azx_resume(struct device * dev)1055 static int azx_resume(struct device *dev)
1056 {
1057 	struct snd_card *card = dev_get_drvdata(dev);
1058 	struct azx *chip;
1059 
1060 	if (!azx_is_pm_ready(card))
1061 		return 0;
1062 
1063 	chip = card->private_data;
1064 
1065 	__azx_runtime_resume(chip);
1066 
1067 	trace_azx_resume(chip);
1068 	return 0;
1069 }
1070 
1071 /* put codec down to D3 at hibernation for Intel SKL+;
1072  * otherwise BIOS may still access the codec and screw up the driver
1073  */
azx_freeze_noirq(struct device * dev)1074 static int azx_freeze_noirq(struct device *dev)
1075 {
1076 	struct snd_card *card = dev_get_drvdata(dev);
1077 	struct azx *chip = card->private_data;
1078 	struct pci_dev *pci = to_pci_dev(dev);
1079 
1080 	if (!azx_is_pm_ready(card))
1081 		return 0;
1082 	if (chip->driver_type == AZX_DRIVER_SKL)
1083 		pci_set_power_state(pci, PCI_D3hot);
1084 
1085 	return 0;
1086 }
1087 
azx_thaw_noirq(struct device * dev)1088 static int azx_thaw_noirq(struct device *dev)
1089 {
1090 	struct snd_card *card = dev_get_drvdata(dev);
1091 	struct azx *chip = card->private_data;
1092 	struct pci_dev *pci = to_pci_dev(dev);
1093 
1094 	if (!azx_is_pm_ready(card))
1095 		return 0;
1096 	if (chip->driver_type == AZX_DRIVER_SKL)
1097 		pci_set_power_state(pci, PCI_D0);
1098 
1099 	return 0;
1100 }
1101 
azx_runtime_suspend(struct device * dev)1102 static int azx_runtime_suspend(struct device *dev)
1103 {
1104 	struct snd_card *card = dev_get_drvdata(dev);
1105 	struct azx *chip;
1106 
1107 	if (!azx_is_pm_ready(card))
1108 		return 0;
1109 	chip = card->private_data;
1110 
1111 	/* enable controller wake up event */
1112 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) | STATESTS_INT_MASK);
1113 
1114 	azx_shutdown_chip(chip);
1115 	trace_azx_runtime_suspend(chip);
1116 	return 0;
1117 }
1118 
azx_runtime_resume(struct device * dev)1119 static int azx_runtime_resume(struct device *dev)
1120 {
1121 	struct snd_card *card = dev_get_drvdata(dev);
1122 	struct azx *chip;
1123 
1124 	if (!azx_is_pm_ready(card))
1125 		return 0;
1126 	chip = card->private_data;
1127 	__azx_runtime_resume(chip);
1128 
1129 	/* disable controller Wake Up event*/
1130 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) & ~STATESTS_INT_MASK);
1131 
1132 	trace_azx_runtime_resume(chip);
1133 	return 0;
1134 }
1135 
azx_runtime_idle(struct device * dev)1136 static int azx_runtime_idle(struct device *dev)
1137 {
1138 	struct snd_card *card = dev_get_drvdata(dev);
1139 	struct azx *chip;
1140 	struct hda_intel *hda;
1141 
1142 	if (!card)
1143 		return 0;
1144 
1145 	chip = card->private_data;
1146 	hda = container_of(chip, struct hda_intel, chip);
1147 	if (chip->disabled || hda->init_failed)
1148 		return 0;
1149 
1150 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1151 	    azx_bus(chip)->codec_powered || !chip->running)
1152 		return -EBUSY;
1153 
1154 	/* ELD notification gets broken when HD-audio bus is off */
1155 	if (needs_eld_notify_link(chip))
1156 		return -EBUSY;
1157 
1158 	return 0;
1159 }
1160 
1161 static const struct dev_pm_ops azx_pm = {
1162 	SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1163 	.prepare = pm_sleep_ptr(azx_prepare),
1164 	.complete = pm_sleep_ptr(azx_complete),
1165 	.freeze_noirq = pm_sleep_ptr(azx_freeze_noirq),
1166 	.thaw_noirq = pm_sleep_ptr(azx_thaw_noirq),
1167 	RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1168 };
1169 
1170 
1171 static int azx_probe_continue(struct azx *chip);
1172 
1173 #ifdef SUPPORT_VGA_SWITCHEROO
1174 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1175 
azx_vs_set_state(struct pci_dev * pci,enum vga_switcheroo_state state)1176 static void azx_vs_set_state(struct pci_dev *pci,
1177 			     enum vga_switcheroo_state state)
1178 {
1179 	struct snd_card *card = pci_get_drvdata(pci);
1180 	struct azx *chip = card->private_data;
1181 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1182 	struct hda_codec *codec;
1183 	bool disabled;
1184 
1185 	wait_for_completion(&hda->probe_wait);
1186 	if (hda->init_failed)
1187 		return;
1188 
1189 	disabled = (state == VGA_SWITCHEROO_OFF);
1190 	if (chip->disabled == disabled)
1191 		return;
1192 
1193 	if (!hda->probe_continued) {
1194 		chip->disabled = disabled;
1195 		if (!disabled) {
1196 			dev_info(chip->card->dev,
1197 				 "Start delayed initialization\n");
1198 			if (azx_probe_continue(chip) < 0)
1199 				dev_err(chip->card->dev, "initialization error\n");
1200 		}
1201 	} else {
1202 		dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1203 			 disabled ? "Disabling" : "Enabling");
1204 		if (disabled) {
1205 			list_for_each_codec(codec, &chip->bus) {
1206 				pm_runtime_suspend(hda_codec_dev(codec));
1207 				pm_runtime_disable(hda_codec_dev(codec));
1208 			}
1209 			pm_runtime_suspend(card->dev);
1210 			pm_runtime_disable(card->dev);
1211 			/* when we get suspended by vga_switcheroo we end up in D3cold,
1212 			 * however we have no ACPI handle, so pci/acpi can't put us there,
1213 			 * put ourselves there */
1214 			pci->current_state = PCI_D3cold;
1215 			chip->disabled = true;
1216 			if (snd_hda_lock_devices(&chip->bus))
1217 				dev_warn(chip->card->dev,
1218 					 "Cannot lock devices!\n");
1219 		} else {
1220 			snd_hda_unlock_devices(&chip->bus);
1221 			chip->disabled = false;
1222 			pm_runtime_enable(card->dev);
1223 			list_for_each_codec(codec, &chip->bus) {
1224 				pm_runtime_enable(hda_codec_dev(codec));
1225 				pm_runtime_resume(hda_codec_dev(codec));
1226 			}
1227 		}
1228 	}
1229 }
1230 
azx_vs_can_switch(struct pci_dev * pci)1231 static bool azx_vs_can_switch(struct pci_dev *pci)
1232 {
1233 	struct snd_card *card = pci_get_drvdata(pci);
1234 	struct azx *chip = card->private_data;
1235 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1236 
1237 	wait_for_completion(&hda->probe_wait);
1238 	if (hda->init_failed)
1239 		return false;
1240 	if (chip->disabled || !hda->probe_continued)
1241 		return true;
1242 	if (snd_hda_lock_devices(&chip->bus))
1243 		return false;
1244 	snd_hda_unlock_devices(&chip->bus);
1245 	return true;
1246 }
1247 
1248 /*
1249  * The discrete GPU cannot power down unless the HDA controller runtime
1250  * suspends, so activate runtime PM on codecs even if power_save == 0.
1251  */
setup_vga_switcheroo_runtime_pm(struct azx * chip)1252 static void setup_vga_switcheroo_runtime_pm(struct azx *chip)
1253 {
1254 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1255 	struct hda_codec *codec;
1256 
1257 	if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
1258 		list_for_each_codec(codec, &chip->bus)
1259 			codec->auto_runtime_pm = 1;
1260 		/* reset the power save setup */
1261 		if (chip->running)
1262 			set_default_power_save(chip);
1263 	}
1264 }
1265 
azx_vs_gpu_bound(struct pci_dev * pci,enum vga_switcheroo_client_id client_id)1266 static void azx_vs_gpu_bound(struct pci_dev *pci,
1267 			     enum vga_switcheroo_client_id client_id)
1268 {
1269 	struct snd_card *card = pci_get_drvdata(pci);
1270 	struct azx *chip = card->private_data;
1271 
1272 	if (client_id == VGA_SWITCHEROO_DIS)
1273 		chip->bus.keep_power = 0;
1274 	setup_vga_switcheroo_runtime_pm(chip);
1275 }
1276 
init_vga_switcheroo(struct azx * chip)1277 static void init_vga_switcheroo(struct azx *chip)
1278 {
1279 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1280 	struct pci_dev *p = get_bound_vga(chip->pci);
1281 	struct pci_dev *parent;
1282 	if (p) {
1283 		dev_info(chip->card->dev,
1284 			 "Handle vga_switcheroo audio client\n");
1285 		hda->use_vga_switcheroo = 1;
1286 
1287 		/* cleared in either gpu_bound op or codec probe, or when its
1288 		 * upstream port has _PR3 (i.e. dGPU).
1289 		 */
1290 		parent = pci_upstream_bridge(p);
1291 		chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
1292 		chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
1293 		pci_dev_put(p);
1294 	}
1295 }
1296 
1297 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1298 	.set_gpu_state = azx_vs_set_state,
1299 	.can_switch = azx_vs_can_switch,
1300 	.gpu_bound = azx_vs_gpu_bound,
1301 };
1302 
register_vga_switcheroo(struct azx * chip)1303 static int register_vga_switcheroo(struct azx *chip)
1304 {
1305 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1306 	struct pci_dev *p;
1307 	int err;
1308 
1309 	if (!hda->use_vga_switcheroo)
1310 		return 0;
1311 
1312 	p = get_bound_vga(chip->pci);
1313 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
1314 	pci_dev_put(p);
1315 
1316 	if (err < 0)
1317 		return err;
1318 	hda->vga_switcheroo_registered = 1;
1319 
1320 	return 0;
1321 }
1322 #else
1323 #define init_vga_switcheroo(chip)		/* NOP */
1324 #define register_vga_switcheroo(chip)		0
1325 #define check_hdmi_disabled(pci)	false
1326 #define setup_vga_switcheroo_runtime_pm(chip)	/* NOP */
1327 #endif /* SUPPORT_VGA_SWITCHER */
1328 
1329 /*
1330  * destructor
1331  */
azx_free(struct azx * chip)1332 static void azx_free(struct azx *chip)
1333 {
1334 	struct pci_dev *pci = chip->pci;
1335 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1336 	struct hdac_bus *bus = azx_bus(chip);
1337 
1338 	if (hda->freed)
1339 		return;
1340 
1341 	if (azx_has_pm_runtime(chip) && chip->running) {
1342 		pm_runtime_get_noresume(&pci->dev);
1343 		pm_runtime_forbid(&pci->dev);
1344 		pm_runtime_dont_use_autosuspend(&pci->dev);
1345 	}
1346 
1347 	chip->running = 0;
1348 
1349 	azx_del_card_list(chip);
1350 
1351 	hda->init_failed = 1; /* to be sure */
1352 	complete_all(&hda->probe_wait);
1353 
1354 	if (use_vga_switcheroo(hda)) {
1355 		if (chip->disabled && hda->probe_continued)
1356 			snd_hda_unlock_devices(&chip->bus);
1357 		if (hda->vga_switcheroo_registered) {
1358 			vga_switcheroo_unregister_client(chip->pci);
1359 
1360 			/* Some GPUs don't have sound, and azx_first_init fails,
1361 			 * leaving the device probed but non-functional. As long
1362 			 * as it's probed, the PCI subsystem keeps its runtime
1363 			 * PM status as active. Force it to suspended (as we
1364 			 * actually stop the chip) to allow GPU to suspend via
1365 			 * vga_switcheroo, and print a warning.
1366 			 */
1367 			dev_warn(&pci->dev, "GPU sound probed, but not operational: please add a quirk to driver_denylist\n");
1368 			pm_runtime_disable(&pci->dev);
1369 			pm_runtime_set_suspended(&pci->dev);
1370 			pm_runtime_enable(&pci->dev);
1371 		}
1372 	}
1373 
1374 	if (bus->chip_init) {
1375 		azx_clear_irq_pending(chip);
1376 		azx_stop_all_streams(chip);
1377 		azx_stop_chip(chip);
1378 	}
1379 
1380 	if (bus->irq >= 0)
1381 		free_irq(bus->irq, (void*)chip);
1382 
1383 	azx_free_stream_pages(chip);
1384 	azx_free_streams(chip);
1385 	snd_hdac_bus_exit(bus);
1386 
1387 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1388 	release_firmware(chip->fw);
1389 #endif
1390 	display_power(chip, false);
1391 
1392 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
1393 		snd_hdac_i915_exit(bus);
1394 
1395 	hda->freed = 1;
1396 }
1397 
azx_dev_disconnect(struct snd_device * device)1398 static int azx_dev_disconnect(struct snd_device *device)
1399 {
1400 	struct azx *chip = device->device_data;
1401 	struct hdac_bus *bus = azx_bus(chip);
1402 
1403 	chip->bus.shutdown = 1;
1404 	cancel_work_sync(&bus->unsol_work);
1405 
1406 	return 0;
1407 }
1408 
azx_dev_free(struct snd_device * device)1409 static int azx_dev_free(struct snd_device *device)
1410 {
1411 	azx_free(device->device_data);
1412 	return 0;
1413 }
1414 
1415 #ifdef SUPPORT_VGA_SWITCHEROO
1416 #ifdef CONFIG_ACPI
1417 /* ATPX is in the integrated GPU's namespace */
atpx_present(void)1418 static bool atpx_present(void)
1419 {
1420 	struct pci_dev *pdev = NULL;
1421 	acpi_handle dhandle, atpx_handle;
1422 	acpi_status status;
1423 
1424 	while ((pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev))) {
1425 		if ((pdev->class != PCI_CLASS_DISPLAY_VGA << 8) &&
1426 		    (pdev->class != PCI_CLASS_DISPLAY_OTHER << 8))
1427 			continue;
1428 
1429 		dhandle = ACPI_HANDLE(&pdev->dev);
1430 		if (dhandle) {
1431 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1432 			if (ACPI_SUCCESS(status)) {
1433 				pci_dev_put(pdev);
1434 				return true;
1435 			}
1436 		}
1437 	}
1438 	return false;
1439 }
1440 #else
atpx_present(void)1441 static bool atpx_present(void)
1442 {
1443 	return false;
1444 }
1445 #endif
1446 
1447 /*
1448  * Check of disabled HDMI controller by vga_switcheroo
1449  */
get_bound_vga(struct pci_dev * pci)1450 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1451 {
1452 	struct pci_dev *p;
1453 
1454 	/* check only discrete GPU */
1455 	switch (pci->vendor) {
1456 	case PCI_VENDOR_ID_ATI:
1457 	case PCI_VENDOR_ID_AMD:
1458 		if (pci->devfn == 1) {
1459 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1460 							pci->bus->number, 0);
1461 			if (p) {
1462 				/* ATPX is in the integrated GPU's ACPI namespace
1463 				 * rather than the dGPU's namespace. However,
1464 				 * the dGPU is the one who is involved in
1465 				 * vgaswitcheroo.
1466 				 */
1467 				if (pci_is_display(p) &&
1468 				    (atpx_present() || apple_gmux_detect(NULL, NULL)))
1469 					return p;
1470 				pci_dev_put(p);
1471 			}
1472 		}
1473 		break;
1474 	case PCI_VENDOR_ID_NVIDIA:
1475 		if (pci->devfn == 1) {
1476 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1477 							pci->bus->number, 0);
1478 			if (p) {
1479 				if (pci_is_display(p))
1480 					return p;
1481 				pci_dev_put(p);
1482 			}
1483 		}
1484 		break;
1485 	}
1486 	return NULL;
1487 }
1488 
check_hdmi_disabled(struct pci_dev * pci)1489 static bool check_hdmi_disabled(struct pci_dev *pci)
1490 {
1491 	bool vga_inactive = false;
1492 	struct pci_dev *p = get_bound_vga(pci);
1493 
1494 	if (p) {
1495 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1496 			vga_inactive = true;
1497 		pci_dev_put(p);
1498 	}
1499 	return vga_inactive;
1500 }
1501 #endif /* SUPPORT_VGA_SWITCHEROO */
1502 
1503 /*
1504  * allow/deny-listing for position_fix
1505  */
1506 static const struct snd_pci_quirk position_fix_list[] = {
1507 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1508 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1509 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1510 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1511 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1512 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1513 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1514 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1515 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1516 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1517 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1518 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1519 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1520 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1521 	{}
1522 };
1523 
check_position_fix(struct azx * chip,int fix)1524 static int check_position_fix(struct azx *chip, int fix)
1525 {
1526 	const struct snd_pci_quirk *q;
1527 
1528 	switch (fix) {
1529 	case POS_FIX_AUTO:
1530 	case POS_FIX_LPIB:
1531 	case POS_FIX_POSBUF:
1532 	case POS_FIX_VIACOMBO:
1533 	case POS_FIX_COMBO:
1534 	case POS_FIX_SKL:
1535 	case POS_FIX_FIFO:
1536 		return fix;
1537 	}
1538 
1539 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1540 	if (q) {
1541 		dev_info(chip->card->dev,
1542 			 "position_fix set to %d for device %04x:%04x\n",
1543 			 q->value, q->subvendor, q->subdevice);
1544 		return q->value;
1545 	}
1546 
1547 	/* Check VIA/ATI HD Audio Controller exist */
1548 	if (chip->driver_type == AZX_DRIVER_VIA) {
1549 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1550 		return POS_FIX_VIACOMBO;
1551 	}
1552 	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1553 		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1554 		return POS_FIX_FIFO;
1555 	}
1556 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1557 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1558 		return POS_FIX_LPIB;
1559 	}
1560 	if (chip->driver_type == AZX_DRIVER_SKL) {
1561 		dev_dbg(chip->card->dev, "Using SKL position fix\n");
1562 		return POS_FIX_SKL;
1563 	}
1564 	return POS_FIX_AUTO;
1565 }
1566 
assign_position_fix(struct azx * chip,int fix)1567 static void assign_position_fix(struct azx *chip, int fix)
1568 {
1569 	static const azx_get_pos_callback_t callbacks[] = {
1570 		[POS_FIX_AUTO] = NULL,
1571 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1572 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1573 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1574 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1575 		[POS_FIX_SKL] = azx_get_pos_posbuf,
1576 		[POS_FIX_FIFO] = azx_get_pos_fifo,
1577 	};
1578 
1579 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1580 
1581 	/* combo mode uses LPIB only for playback */
1582 	if (fix == POS_FIX_COMBO)
1583 		chip->get_position[1] = NULL;
1584 
1585 	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1586 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1587 		chip->get_delay[0] = chip->get_delay[1] =
1588 			azx_get_delay_from_lpib;
1589 	}
1590 
1591 	if (fix == POS_FIX_FIFO)
1592 		chip->get_delay[0] = chip->get_delay[1] =
1593 			azx_get_delay_from_fifo;
1594 }
1595 
1596 /*
1597  * deny-lists for probe_mask
1598  */
1599 static const struct snd_pci_quirk probe_mask_list[] = {
1600 	/* Thinkpad often breaks the controller communication when accessing
1601 	 * to the non-working (or non-existing) modem codec slot.
1602 	 */
1603 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1604 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1605 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1606 	/* broken BIOS */
1607 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1608 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1609 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1610 	/* forced codec slots */
1611 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1612 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1613 	SND_PCI_QUIRK(0x1558, 0x0351, "Schenker Dock 15", 0x105),
1614 	/* WinFast VP200 H (Teradici) user reported broken communication */
1615 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1616 	{}
1617 };
1618 
1619 #define AZX_FORCE_CODEC_MASK	0x100
1620 
check_probe_mask(struct azx * chip,int dev)1621 static void check_probe_mask(struct azx *chip, int dev)
1622 {
1623 	const struct snd_pci_quirk *q;
1624 
1625 	chip->codec_probe_mask = probe_mask[dev];
1626 	if (chip->codec_probe_mask == -1) {
1627 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1628 		if (q) {
1629 			dev_info(chip->card->dev,
1630 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1631 				 q->value, q->subvendor, q->subdevice);
1632 			chip->codec_probe_mask = q->value;
1633 		}
1634 	}
1635 
1636 	/* check forced option */
1637 	if (chip->codec_probe_mask != -1 &&
1638 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1639 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1640 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1641 			 (int)azx_bus(chip)->codec_mask);
1642 	}
1643 }
1644 
1645 /*
1646  * allow/deny-list for enable_msi
1647  */
1648 static const struct snd_pci_quirk msi_deny_list[] = {
1649 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1650 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1651 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1652 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1653 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1654 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1655 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1656 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1657 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1658 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1659 	{}
1660 };
1661 
check_msi(struct azx * chip)1662 static void check_msi(struct azx *chip)
1663 {
1664 	const struct snd_pci_quirk *q;
1665 
1666 	if (enable_msi >= 0) {
1667 		chip->msi = !!enable_msi;
1668 		return;
1669 	}
1670 	chip->msi = 1;	/* enable MSI as default */
1671 	q = snd_pci_quirk_lookup(chip->pci, msi_deny_list);
1672 	if (q) {
1673 		dev_info(chip->card->dev,
1674 			 "msi for device %04x:%04x set to %d\n",
1675 			 q->subvendor, q->subdevice, q->value);
1676 		chip->msi = q->value;
1677 		return;
1678 	}
1679 
1680 	/* NVidia chipsets seem to cause troubles with MSI */
1681 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1682 		dev_info(chip->card->dev, "Disabling MSI\n");
1683 		chip->msi = 0;
1684 	}
1685 }
1686 
1687 /* check the snoop mode availability */
azx_check_snoop_available(struct azx * chip)1688 static void azx_check_snoop_available(struct azx *chip)
1689 {
1690 	int snoop = hda_snoop;
1691 
1692 	if (snoop >= 0) {
1693 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1694 			 snoop ? "snoop" : "non-snoop");
1695 		chip->snoop = snoop;
1696 		chip->uc_buffer = !snoop;
1697 		return;
1698 	}
1699 
1700 	snoop = true;
1701 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1702 	    chip->driver_type == AZX_DRIVER_VIA) {
1703 		/* force to non-snoop mode for a new VIA controller
1704 		 * when BIOS is set
1705 		 */
1706 		u8 val;
1707 		pci_read_config_byte(chip->pci, 0x42, &val);
1708 		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1709 				      chip->pci->revision == 0x20))
1710 			snoop = false;
1711 	}
1712 
1713 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1714 		snoop = false;
1715 
1716 	chip->snoop = snoop;
1717 	if (!snoop) {
1718 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1719 		/* C-Media requires non-cached pages only for CORB/RIRB */
1720 		if (chip->driver_type != AZX_DRIVER_CMEDIA)
1721 			chip->uc_buffer = true;
1722 	}
1723 }
1724 
azx_probe_work(struct work_struct * work)1725 static void azx_probe_work(struct work_struct *work)
1726 {
1727 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work.work);
1728 	azx_probe_continue(&hda->chip);
1729 }
1730 
default_bdl_pos_adj(struct azx * chip)1731 static int default_bdl_pos_adj(struct azx *chip)
1732 {
1733 	/* some exceptions: Atoms seem problematic with value 1 */
1734 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1735 		switch (chip->pci->device) {
1736 		case PCI_DEVICE_ID_INTEL_HDA_BYT:
1737 		case PCI_DEVICE_ID_INTEL_HDA_BSW:
1738 			return 32;
1739 		case PCI_DEVICE_ID_INTEL_HDA_APL:
1740 			return 64;
1741 		}
1742 	}
1743 
1744 	switch (chip->driver_type) {
1745 	/*
1746 	 * increase the bdl size for Glenfly Gpus for hardware
1747 	 * limitation on hdac interrupt interval
1748 	 */
1749 	case AZX_DRIVER_GFHDMI:
1750 		return 128;
1751 	case AZX_DRIVER_ICH:
1752 	case AZX_DRIVER_PCH:
1753 		return 1;
1754 	case AZX_DRIVER_ZHAOXINHDMI:
1755 		return 128;
1756 	default:
1757 		return 32;
1758 	}
1759 }
1760 
1761 /*
1762  * constructor
1763  */
1764 static const struct hda_controller_ops pci_hda_ops;
1765 
azx_create(struct snd_card * card,struct pci_dev * pci,int dev,unsigned int driver_caps,struct azx ** rchip)1766 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1767 		      int dev, unsigned int driver_caps,
1768 		      struct azx **rchip)
1769 {
1770 	static const struct snd_device_ops ops = {
1771 		.dev_disconnect = azx_dev_disconnect,
1772 		.dev_free = azx_dev_free,
1773 	};
1774 	struct hda_intel *hda;
1775 	struct azx *chip;
1776 	int err;
1777 
1778 	*rchip = NULL;
1779 
1780 	err = pcim_enable_device(pci);
1781 	if (err < 0)
1782 		return err;
1783 
1784 	hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL);
1785 	if (!hda)
1786 		return -ENOMEM;
1787 
1788 	chip = &hda->chip;
1789 	mutex_init(&chip->open_mutex);
1790 	chip->card = card;
1791 	chip->pci = pci;
1792 	chip->ops = &pci_hda_ops;
1793 	chip->driver_caps = driver_caps;
1794 	chip->driver_type = driver_caps & 0xff;
1795 	check_msi(chip);
1796 	chip->dev_index = dev;
1797 	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1798 		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1799 	INIT_LIST_HEAD(&chip->pcm_list);
1800 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1801 	INIT_LIST_HEAD(&hda->list);
1802 	init_vga_switcheroo(chip);
1803 	init_completion(&hda->probe_wait);
1804 
1805 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1806 
1807 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1808 		chip->fallback_to_single_cmd = 1;
1809 	else /* explicitly set to single_cmd or not */
1810 		chip->single_cmd = single_cmd;
1811 
1812 	azx_check_snoop_available(chip);
1813 
1814 	if (bdl_pos_adj[dev] < 0)
1815 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1816 	else
1817 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1818 
1819 	err = azx_bus_init(chip, model[dev]);
1820 	if (err < 0)
1821 		return err;
1822 
1823 	/* use the non-cached pages in non-snoop mode */
1824 	if (!azx_snoop(chip))
1825 		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_WC;
1826 
1827 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1828 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1829 		chip->bus.core.needs_damn_long_delay = 1;
1830 	}
1831 
1832 	check_probe_mask(chip, dev);
1833 
1834 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1835 	if (err < 0) {
1836 		dev_err(card->dev, "Error creating device [card]!\n");
1837 		azx_free(chip);
1838 		return err;
1839 	}
1840 
1841 	/* continue probing in work context as may trigger request module */
1842 	INIT_DELAYED_WORK(&hda->probe_work, azx_probe_work);
1843 
1844 	*rchip = chip;
1845 
1846 	return 0;
1847 }
1848 
azx_first_init(struct azx * chip)1849 static int azx_first_init(struct azx *chip)
1850 {
1851 	int dev = chip->dev_index;
1852 	struct pci_dev *pci = chip->pci;
1853 	struct snd_card *card = chip->card;
1854 	struct hdac_bus *bus = azx_bus(chip);
1855 	int err;
1856 	unsigned short gcap;
1857 	unsigned int dma_bits = 64;
1858 
1859 #if BITS_PER_LONG != 64
1860 	/* Fix up base address on ULI M5461 */
1861 	if (chip->driver_type == AZX_DRIVER_ULI) {
1862 		u16 tmp3;
1863 		pci_read_config_word(pci, 0x40, &tmp3);
1864 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1865 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1866 	}
1867 #endif
1868 	/*
1869 	 * Fix response write request not synced to memory when handle
1870 	 * hdac interrupt on Glenfly Gpus
1871 	 */
1872 	if (chip->driver_type == AZX_DRIVER_GFHDMI)
1873 		bus->polling_mode = 1;
1874 
1875 	if (chip->driver_type == AZX_DRIVER_LOONGSON) {
1876 		bus->polling_mode = 1;
1877 		bus->not_use_interrupts = 1;
1878 		bus->access_sdnctl_in_dword = 1;
1879 		if (!chip->jackpoll_interval)
1880 			chip->jackpoll_interval = msecs_to_jiffies(1500);
1881 	}
1882 
1883 	if (chip->driver_type == AZX_DRIVER_ZHAOXINHDMI)
1884 		bus->polling_mode = 1;
1885 
1886 	bus->remap_addr = pcim_iomap_region(pci, 0, "ICH HD audio");
1887 	if (IS_ERR(bus->remap_addr))
1888 		return PTR_ERR(bus->remap_addr);
1889 
1890 	bus->addr = pci_resource_start(pci, 0);
1891 
1892 	if (chip->driver_type == AZX_DRIVER_SKL)
1893 		snd_hdac_bus_parse_capabilities(bus);
1894 
1895 	/*
1896 	 * Some Intel CPUs has always running timer (ART) feature and
1897 	 * controller may have Global time sync reporting capability, so
1898 	 * check both of these before declaring synchronized time reporting
1899 	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1900 	 */
1901 	chip->gts_present = false;
1902 
1903 #ifdef CONFIG_X86
1904 	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1905 		chip->gts_present = true;
1906 #endif
1907 
1908 	if (chip->msi && chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1909 		dev_dbg(card->dev, "Disabling 64bit MSI\n");
1910 		pci->no_64bit_msi = true;
1911 	}
1912 
1913 	pci_set_master(pci);
1914 
1915 	gcap = azx_readw(chip, GCAP);
1916 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1917 
1918 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1919 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1920 		dma_bits = 40;
1921 
1922 	/* disable SB600 64bit support for safety */
1923 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1924 		struct pci_dev *p_smbus;
1925 		dma_bits = 40;
1926 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1927 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1928 					 NULL);
1929 		if (p_smbus) {
1930 			if (p_smbus->revision < 0x30)
1931 				gcap &= ~AZX_GCAP_64OK;
1932 			pci_dev_put(p_smbus);
1933 		}
1934 	}
1935 
1936 	/* NVidia hardware normally only supports up to 40 bits of DMA */
1937 	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1938 		dma_bits = 40;
1939 
1940 	/* disable 64bit DMA address on some devices */
1941 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1942 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1943 		gcap &= ~AZX_GCAP_64OK;
1944 	}
1945 
1946 	/* disable buffer size rounding to 128-byte multiples if supported */
1947 	if (align_buffer_size >= 0)
1948 		chip->align_buffer_size = !!align_buffer_size;
1949 	else {
1950 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1951 			chip->align_buffer_size = 0;
1952 		else
1953 			chip->align_buffer_size = 1;
1954 	}
1955 
1956 	/* allow 64bit DMA address if supported by H/W */
1957 	if (!(gcap & AZX_GCAP_64OK))
1958 		dma_bits = 32;
1959 	if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(dma_bits)))
1960 		dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32));
1961 	dma_set_max_seg_size(&pci->dev, UINT_MAX);
1962 
1963 	/* read number of streams from GCAP register instead of using
1964 	 * hardcoded value
1965 	 */
1966 	chip->capture_streams = (gcap >> 8) & 0x0f;
1967 	chip->playback_streams = (gcap >> 12) & 0x0f;
1968 	if (!chip->playback_streams && !chip->capture_streams) {
1969 		/* gcap didn't give any info, switching to old method */
1970 
1971 		switch (chip->driver_type) {
1972 		case AZX_DRIVER_ULI:
1973 			chip->playback_streams = ULI_NUM_PLAYBACK;
1974 			chip->capture_streams = ULI_NUM_CAPTURE;
1975 			break;
1976 		case AZX_DRIVER_ATIHDMI:
1977 		case AZX_DRIVER_ATIHDMI_NS:
1978 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1979 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1980 			break;
1981 		case AZX_DRIVER_GFHDMI:
1982 		case AZX_DRIVER_ZHAOXINHDMI:
1983 		case AZX_DRIVER_GENERIC:
1984 		default:
1985 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1986 			chip->capture_streams = ICH6_NUM_CAPTURE;
1987 			break;
1988 		}
1989 	}
1990 	chip->capture_index_offset = 0;
1991 	chip->playback_index_offset = chip->capture_streams;
1992 	chip->num_streams = chip->playback_streams + chip->capture_streams;
1993 
1994 	/* sanity check for the SDxCTL.STRM field overflow */
1995 	if (chip->num_streams > 15 &&
1996 	    (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
1997 		dev_warn(chip->card->dev, "number of I/O streams is %d, "
1998 			 "forcing separate stream tags", chip->num_streams);
1999 		chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
2000 	}
2001 
2002 	/* initialize streams */
2003 	err = azx_init_streams(chip);
2004 	if (err < 0)
2005 		return err;
2006 
2007 	err = azx_alloc_stream_pages(chip);
2008 	if (err < 0)
2009 		return err;
2010 
2011 	/* initialize chip */
2012 	azx_init_pci(chip);
2013 
2014 	snd_hdac_i915_set_bclk(bus);
2015 
2016 	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
2017 
2018 	/* codec detection */
2019 	if (!azx_bus(chip)->codec_mask) {
2020 		dev_err(card->dev, "no codecs found!\n");
2021 		/* keep running the rest for the runtime PM */
2022 	}
2023 
2024 	if (azx_acquire_irq(chip, 0) < 0)
2025 		return -EBUSY;
2026 
2027 	strscpy(card->driver, "HDA-Intel");
2028 	strscpy(card->shortname, driver_short_names[chip->driver_type],
2029 		sizeof(card->shortname));
2030 	snprintf(card->longname, sizeof(card->longname),
2031 		 "%s at 0x%lx irq %i",
2032 		 card->shortname, bus->addr, bus->irq);
2033 
2034 	return 0;
2035 }
2036 
2037 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2038 /* callback from request_firmware_nowait() */
azx_firmware_cb(const struct firmware * fw,void * context)2039 static void azx_firmware_cb(const struct firmware *fw, void *context)
2040 {
2041 	struct snd_card *card = context;
2042 	struct azx *chip = card->private_data;
2043 
2044 	if (fw)
2045 		chip->fw = fw;
2046 	else
2047 		dev_err(card->dev, "Cannot load firmware, continue without patching\n");
2048 	if (!chip->disabled) {
2049 		/* continue probing */
2050 		azx_probe_continue(chip);
2051 	}
2052 }
2053 #endif
2054 
disable_msi_reset_irq(struct azx * chip)2055 static int disable_msi_reset_irq(struct azx *chip)
2056 {
2057 	struct hdac_bus *bus = azx_bus(chip);
2058 	int err;
2059 
2060 	free_irq(bus->irq, chip);
2061 	bus->irq = -1;
2062 	chip->card->sync_irq = -1;
2063 	pci_free_irq_vectors(chip->pci);
2064 	chip->msi = 0;
2065 	err = azx_acquire_irq(chip, 1);
2066 	if (err < 0)
2067 		return err;
2068 
2069 	return 0;
2070 }
2071 
2072 /* Denylist for skipping the whole probe:
2073  * some HD-audio PCI entries are exposed without any codecs, and such devices
2074  * should be ignored from the beginning.
2075  */
2076 static const struct pci_device_id driver_denylist[] = {
2077 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) }, /* ASUS ROG Zenith II / Strix */
2078 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) }, /* MSI TRX40 Creator */
2079 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) }, /* MSI TRX40 */
2080 	{ PCI_DEVICE_SUB(0x1022, 0x15e3, 0x1022, 0xd601) }, /* ASRock X670E Taichi */
2081 	{}
2082 };
2083 
2084 static struct pci_device_id driver_denylist_ideapad_z570[] = {
2085 	{ PCI_DEVICE_SUB(0x10de, 0x0bea, 0x0000, 0x0000) }, /* NVIDIA GF108 HDA */
2086 	{}
2087 };
2088 
2089 /* DMI-based denylist, to be used when:
2090  *  - PCI subsystem IDs are zero, impossible to distinguish from valid sound cards.
2091  *  - Different modifications of the same laptop use different GPU models.
2092  */
2093 static const struct dmi_system_id driver_denylist_dmi[] = {
2094 	{
2095 		/* No HDA in NVIDIA DGPU. BIOS disables it, but quirk_nvidia_hda() reenables. */
2096 		.matches = {
2097 			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
2098 			DMI_MATCH(DMI_PRODUCT_VERSION, "Ideapad Z570"),
2099 		},
2100 		.driver_data = &driver_denylist_ideapad_z570,
2101 	},
2102 	{}
2103 };
2104 
2105 static const struct hda_controller_ops pci_hda_ops = {
2106 	.disable_msi_reset_irq = disable_msi_reset_irq,
2107 	.position_check = azx_position_check,
2108 };
2109 
2110 static DECLARE_BITMAP(probed_devs, SNDRV_CARDS);
2111 
azx_probe(struct pci_dev * pci,const struct pci_device_id * pci_id)2112 static int azx_probe(struct pci_dev *pci,
2113 		     const struct pci_device_id *pci_id)
2114 {
2115 	const struct dmi_system_id *dmi;
2116 	struct snd_card *card;
2117 	struct hda_intel *hda;
2118 	struct azx *chip;
2119 	bool schedule_probe;
2120 	int dev;
2121 	int err;
2122 
2123 	if (pci_match_id(driver_denylist, pci)) {
2124 		dev_info(&pci->dev, "Skipping the device on the denylist\n");
2125 		return -ENODEV;
2126 	}
2127 
2128 	dmi = dmi_first_match(driver_denylist_dmi);
2129 	if (dmi && pci_match_id(dmi->driver_data, pci)) {
2130 		dev_info(&pci->dev, "Skipping the device on the DMI denylist\n");
2131 		return -ENODEV;
2132 	}
2133 
2134 	dev = find_first_zero_bit(probed_devs, SNDRV_CARDS);
2135 	if (dev >= SNDRV_CARDS)
2136 		return -ENODEV;
2137 	if (!enable[dev]) {
2138 		set_bit(dev, probed_devs);
2139 		return -ENOENT;
2140 	}
2141 
2142 	/*
2143 	 * stop probe if another Intel's DSP driver should be activated
2144 	 */
2145 	if (dmic_detect) {
2146 		err = snd_intel_dsp_driver_probe(pci);
2147 		if (err != SND_INTEL_DSP_DRIVER_ANY && err != SND_INTEL_DSP_DRIVER_LEGACY) {
2148 			dev_dbg(&pci->dev, "HDAudio driver not selected, aborting probe\n");
2149 			return -ENODEV;
2150 		}
2151 	} else {
2152 		dev_warn(&pci->dev, "dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
2153 	}
2154 
2155 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2156 			   0, &card);
2157 	if (err < 0) {
2158 		dev_err(&pci->dev, "Error creating card!\n");
2159 		return err;
2160 	}
2161 
2162 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2163 	if (err < 0)
2164 		goto out_free;
2165 	card->private_data = chip;
2166 	hda = container_of(chip, struct hda_intel, chip);
2167 
2168 	pci_set_drvdata(pci, card);
2169 
2170 #ifdef CONFIG_SND_HDA_I915
2171 	/* bind with i915 if needed */
2172 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2173 		err = snd_hdac_i915_init(azx_bus(chip));
2174 		if (err < 0) {
2175 			if (err == -EPROBE_DEFER)
2176 				goto out_free;
2177 
2178 			/* if the controller is bound only with HDMI/DP
2179 			 * (for HSW and BDW), we need to abort the probe;
2180 			 * for other chips, still continue probing as other
2181 			 * codecs can be on the same link.
2182 			 */
2183 			if (HDA_CONTROLLER_IN_GPU(pci)) {
2184 				dev_err_probe(card->dev, err,
2185 					     "HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2186 
2187 				goto out_free;
2188 			} else {
2189 				/* don't bother any longer */
2190 				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2191 			}
2192 		}
2193 
2194 		/* HSW/BDW controllers need this power */
2195 		if (HDA_CONTROLLER_IN_GPU(pci))
2196 			hda->need_i915_power = true;
2197 	}
2198 #else
2199 	if (HDA_CONTROLLER_IN_GPU(pci))
2200 		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2201 #endif
2202 
2203 	err = register_vga_switcheroo(chip);
2204 	if (err < 0) {
2205 		dev_err(card->dev, "Error registering vga_switcheroo client\n");
2206 		goto out_free;
2207 	}
2208 
2209 	if (check_hdmi_disabled(pci)) {
2210 		dev_info(card->dev, "VGA controller is disabled\n");
2211 		dev_info(card->dev, "Delaying initialization\n");
2212 		chip->disabled = true;
2213 	}
2214 
2215 	schedule_probe = !chip->disabled;
2216 
2217 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2218 	if (patch[dev] && *patch[dev]) {
2219 		dev_info(card->dev, "Applying patch firmware '%s'\n",
2220 			 patch[dev]);
2221 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2222 					      &pci->dev, GFP_KERNEL, card,
2223 					      azx_firmware_cb);
2224 		if (err < 0)
2225 			goto out_free;
2226 		schedule_probe = false; /* continued in azx_firmware_cb() */
2227 	}
2228 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2229 
2230 	if (schedule_probe)
2231 		schedule_delayed_work(&hda->probe_work, 0);
2232 
2233 	set_bit(dev, probed_devs);
2234 	if (chip->disabled)
2235 		complete_all(&hda->probe_wait);
2236 	return 0;
2237 
2238 out_free:
2239 	pci_set_drvdata(pci, NULL);
2240 	snd_card_free(card);
2241 	return err;
2242 }
2243 
2244 /* On some boards setting power_save to a non 0 value leads to clicking /
2245  * popping sounds when ever we enter/leave powersaving mode. Ideally we would
2246  * figure out how to avoid these sounds, but that is not always feasible.
2247  * So we keep a list of devices where we disable powersaving as its known
2248  * to causes problems on these devices.
2249  */
2250 static const struct snd_pci_quirk power_save_denylist[] = {
2251 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2252 	SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
2253 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2254 	SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
2255 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2256 	SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
2257 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2258 	SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
2259 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2260 	SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
2261 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2262 	/* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
2263 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
2264 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2265 	SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
2266 	/* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
2267 	SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
2268 	/* https://bugs.launchpad.net/bugs/1821663 */
2269 	SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
2270 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
2271 	SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
2272 	/* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
2273 	SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
2274 	SND_PCI_QUIRK(0x17aa, 0x316e, "Lenovo ThinkCentre M70q", 0),
2275 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
2276 	SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
2277 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
2278 	SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
2279 	/* https://bugs.launchpad.net/bugs/1821663 */
2280 	SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
2281 	/* KONTRON SinglePC may cause a stall at runtime resume */
2282 	SND_PCI_QUIRK(0x1734, 0x1232, "KONTRON SinglePC", 0),
2283 	/* Dell ALC3271 */
2284 	SND_PCI_QUIRK(0x1028, 0x0962, "Dell ALC3271", 0),
2285 	/* https://bugzilla.kernel.org/show_bug.cgi?id=220210 */
2286 	SND_PCI_QUIRK(0x17aa, 0x5079, "Lenovo Thinkpad E15", 0),
2287 	{}
2288 };
2289 
set_default_power_save(struct azx * chip)2290 static void set_default_power_save(struct azx *chip)
2291 {
2292 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2293 	int val = power_save;
2294 
2295 	if (pm_blacklist < 0) {
2296 		const struct snd_pci_quirk *q;
2297 
2298 		q = snd_pci_quirk_lookup(chip->pci, power_save_denylist);
2299 		if (q && val) {
2300 			dev_info(chip->card->dev, "device %04x:%04x is on the power_save denylist, forcing power_save to 0\n",
2301 				 q->subvendor, q->subdevice);
2302 			val = 0;
2303 			hda->runtime_pm_disabled = 1;
2304 		}
2305 	} else if (pm_blacklist > 0) {
2306 		dev_info(chip->card->dev, "Forcing power_save to 0 via option\n");
2307 		val = 0;
2308 	}
2309 	snd_hda_set_power_save(&chip->bus, val * 1000);
2310 }
2311 
2312 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2313 static const unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2314 	[AZX_DRIVER_NVIDIA] = 8,
2315 	[AZX_DRIVER_TERA] = 1,
2316 };
2317 
azx_probe_continue(struct azx * chip)2318 static int azx_probe_continue(struct azx *chip)
2319 {
2320 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2321 	struct hdac_bus *bus = azx_bus(chip);
2322 	struct pci_dev *pci = chip->pci;
2323 	int dev = chip->dev_index;
2324 	int err;
2325 
2326 	if (chip->disabled || hda->init_failed)
2327 		return -EIO;
2328 	if (hda->probe_retry)
2329 		goto probe_retry;
2330 
2331 	to_hda_bus(bus)->bus_probing = 1;
2332 	hda->probe_continued = 1;
2333 
2334 	/* Request display power well for the HDA controller or codec. For
2335 	 * Haswell/Broadwell, both the display HDA controller and codec need
2336 	 * this power. For other platforms, like Baytrail/Braswell, only the
2337 	 * display codec needs the power and it can be released after probe.
2338 	 */
2339 	display_power(chip, true);
2340 
2341 	err = azx_first_init(chip);
2342 	if (err < 0)
2343 		goto out_free;
2344 
2345 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2346 	chip->beep_mode = beep_mode[dev];
2347 #endif
2348 
2349 	chip->ctl_dev_id = ctl_dev_id;
2350 
2351 	/* create codec instances */
2352 	if (bus->codec_mask) {
2353 		err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2354 		if (err < 0)
2355 			goto out_free;
2356 	}
2357 
2358 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2359 	if (chip->fw) {
2360 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2361 					 chip->fw->data);
2362 		if (err < 0)
2363 			goto out_free;
2364 	}
2365 #endif
2366 
2367  probe_retry:
2368 	if (bus->codec_mask && !(probe_only[dev] & 1)) {
2369 		err = azx_codec_configure(chip);
2370 		if (err) {
2371 			if ((chip->driver_caps & AZX_DCAPS_RETRY_PROBE) &&
2372 			    ++hda->probe_retry < 60) {
2373 				schedule_delayed_work(&hda->probe_work,
2374 						      msecs_to_jiffies(1000));
2375 				return 0; /* keep things up */
2376 			}
2377 			dev_err(chip->card->dev, "Cannot probe codecs, giving up\n");
2378 			goto out_free;
2379 		}
2380 	}
2381 
2382 	err = snd_card_register(chip->card);
2383 	if (err < 0)
2384 		goto out_free;
2385 
2386 	setup_vga_switcheroo_runtime_pm(chip);
2387 
2388 	chip->running = 1;
2389 	azx_add_card_list(chip);
2390 
2391 	set_default_power_save(chip);
2392 
2393 	if (azx_has_pm_runtime(chip)) {
2394 		pm_runtime_use_autosuspend(&pci->dev);
2395 		pm_runtime_allow(&pci->dev);
2396 		pm_runtime_put_autosuspend(&pci->dev);
2397 	}
2398 
2399 out_free:
2400 	if (err < 0) {
2401 		pci_set_drvdata(pci, NULL);
2402 		snd_card_free(chip->card);
2403 		return err;
2404 	}
2405 
2406 	if (!hda->need_i915_power)
2407 		display_power(chip, false);
2408 	complete_all(&hda->probe_wait);
2409 	to_hda_bus(bus)->bus_probing = 0;
2410 	hda->probe_retry = 0;
2411 	return 0;
2412 }
2413 
azx_remove(struct pci_dev * pci)2414 static void azx_remove(struct pci_dev *pci)
2415 {
2416 	struct snd_card *card = pci_get_drvdata(pci);
2417 	struct azx *chip;
2418 	struct hda_intel *hda;
2419 
2420 	if (card) {
2421 		/* cancel the pending probing work */
2422 		chip = card->private_data;
2423 		hda = container_of(chip, struct hda_intel, chip);
2424 		/* FIXME: below is an ugly workaround.
2425 		 * Both device_release_driver() and driver_probe_device()
2426 		 * take *both* the device's and its parent's lock before
2427 		 * calling the remove() and probe() callbacks.  The codec
2428 		 * probe takes the locks of both the codec itself and its
2429 		 * parent, i.e. the PCI controller dev.  Meanwhile, when
2430 		 * the PCI controller is unbound, it takes its lock, too
2431 		 * ==> ouch, a deadlock!
2432 		 * As a workaround, we unlock temporarily here the controller
2433 		 * device during cancel_work_sync() call.
2434 		 */
2435 		device_unlock(&pci->dev);
2436 		cancel_delayed_work_sync(&hda->probe_work);
2437 		device_lock(&pci->dev);
2438 
2439 		clear_bit(chip->dev_index, probed_devs);
2440 		pci_set_drvdata(pci, NULL);
2441 		snd_card_free(card);
2442 	}
2443 }
2444 
azx_shutdown(struct pci_dev * pci)2445 static void azx_shutdown(struct pci_dev *pci)
2446 {
2447 	struct snd_card *card = pci_get_drvdata(pci);
2448 	struct azx *chip;
2449 
2450 	if (!card)
2451 		return;
2452 	chip = card->private_data;
2453 	if (chip && chip->running)
2454 		__azx_shutdown_chip(chip, true);
2455 }
2456 
2457 /* PCI IDs */
2458 static const struct pci_device_id azx_ids[] = {
2459 	/* CPT */
2460 	{ PCI_DEVICE_DATA(INTEL, HDA_CPT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2461 	/* PBG */
2462 	{ PCI_DEVICE_DATA(INTEL, HDA_PBG, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2463 	/* Panther Point */
2464 	{ PCI_DEVICE_DATA(INTEL, HDA_PPT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2465 	/* Lynx Point */
2466 	{ PCI_DEVICE_DATA(INTEL, HDA_LPT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2467 	/* 9 Series */
2468 	{ PCI_DEVICE_DATA(INTEL, HDA_9_SERIES, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2469 	/* Wellsburg */
2470 	{ PCI_DEVICE_DATA(INTEL, HDA_WBG_0, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2471 	{ PCI_DEVICE_DATA(INTEL, HDA_WBG_1, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2472 	/* Lewisburg */
2473 	{ PCI_DEVICE_DATA(INTEL, HDA_LBG_0, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE) },
2474 	{ PCI_DEVICE_DATA(INTEL, HDA_LBG_1, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE) },
2475 	/* Lynx Point-LP */
2476 	{ PCI_DEVICE_DATA(INTEL, HDA_LPT_LP_0, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2477 	/* Lynx Point-LP */
2478 	{ PCI_DEVICE_DATA(INTEL, HDA_LPT_LP_1, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2479 	/* Wildcat Point-LP */
2480 	{ PCI_DEVICE_DATA(INTEL, HDA_WPT_LP, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2481 	/* Skylake (Sunrise Point) */
2482 	{ PCI_DEVICE_DATA(INTEL, HDA_SKL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2483 	/* Skylake-LP (Sunrise Point-LP) */
2484 	{ PCI_DEVICE_DATA(INTEL, HDA_SKL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2485 	/* Kabylake */
2486 	{ PCI_DEVICE_DATA(INTEL, HDA_KBL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2487 	/* Kabylake-LP */
2488 	{ PCI_DEVICE_DATA(INTEL, HDA_KBL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2489 	/* Kabylake-H */
2490 	{ PCI_DEVICE_DATA(INTEL, HDA_KBL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2491 	/* Coffelake */
2492 	{ PCI_DEVICE_DATA(INTEL, HDA_CNL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2493 	/* Cannonlake */
2494 	{ PCI_DEVICE_DATA(INTEL, HDA_CNL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2495 	/* CometLake-LP */
2496 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2497 	/* CometLake-H */
2498 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2499 	{ PCI_DEVICE_DATA(INTEL, HDA_RKL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2500 	/* CometLake-S */
2501 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2502 	/* CometLake-R */
2503 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_R, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2504 	/* Icelake */
2505 	{ PCI_DEVICE_DATA(INTEL, HDA_ICL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2506 	/* Icelake-H */
2507 	{ PCI_DEVICE_DATA(INTEL, HDA_ICL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2508 	/* Jasperlake */
2509 	{ PCI_DEVICE_DATA(INTEL, HDA_ICL_N, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2510 	{ PCI_DEVICE_DATA(INTEL, HDA_JSL_N, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2511 	/* Tigerlake */
2512 	{ PCI_DEVICE_DATA(INTEL, HDA_TGL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2513 	/* Tigerlake-H */
2514 	{ PCI_DEVICE_DATA(INTEL, HDA_TGL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2515 	/* DG1 */
2516 	{ PCI_DEVICE_DATA(INTEL, HDA_DG1, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2517 	/* DG2 */
2518 	{ PCI_DEVICE_DATA(INTEL, HDA_DG2_0, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2519 	{ PCI_DEVICE_DATA(INTEL, HDA_DG2_1, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2520 	{ PCI_DEVICE_DATA(INTEL, HDA_DG2_2, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2521 	/* Alderlake-S */
2522 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2523 	/* Alderlake-P */
2524 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_P, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2525 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_PS, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2526 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_PX, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2527 	/* Alderlake-M */
2528 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_M, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2529 	/* Alderlake-N */
2530 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_N, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2531 	/* Elkhart Lake */
2532 	{ PCI_DEVICE_DATA(INTEL, HDA_EHL_0, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2533 	{ PCI_DEVICE_DATA(INTEL, HDA_EHL_3, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2534 	/* Raptor Lake */
2535 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2536 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_P_0, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2537 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_P_1, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2538 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_M, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2539 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_PX, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2540 	{ PCI_DEVICE_DATA(INTEL, HDA_MTL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2541 	/* Battlemage */
2542 	{ PCI_DEVICE_DATA(INTEL, HDA_BMG, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2543 	/* Lunarlake-P */
2544 	{ PCI_DEVICE_DATA(INTEL, HDA_LNL_P, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_LNL) },
2545 	/* Arrow Lake-S */
2546 	{ PCI_DEVICE_DATA(INTEL, HDA_ARL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2547 	/* Arrow Lake */
2548 	{ PCI_DEVICE_DATA(INTEL, HDA_ARL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2549 	/* Panther Lake */
2550 	{ PCI_DEVICE_DATA(INTEL, HDA_PTL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_LNL) },
2551 	/* Panther Lake-H */
2552 	{ PCI_DEVICE_DATA(INTEL, HDA_PTL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_LNL) },
2553 	/* Wildcat Lake */
2554 	{ PCI_DEVICE_DATA(INTEL, HDA_WCL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_LNL) },
2555 	/* Apollolake (Broxton-P) */
2556 	{ PCI_DEVICE_DATA(INTEL, HDA_APL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON) },
2557 	/* Gemini-Lake */
2558 	{ PCI_DEVICE_DATA(INTEL, HDA_GML, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON) },
2559 	/* Haswell */
2560 	{ PCI_DEVICE_DATA(INTEL, HDA_HSW_0, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL) },
2561 	{ PCI_DEVICE_DATA(INTEL, HDA_HSW_2, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL) },
2562 	{ PCI_DEVICE_DATA(INTEL, HDA_HSW_3, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL) },
2563 	/* Broadwell */
2564 	{ PCI_DEVICE_DATA(INTEL, HDA_BDW, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL) },
2565 	/* 5 Series/3400 */
2566 	{ PCI_DEVICE_DATA(INTEL, HDA_5_3400_SERIES_0, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2567 	{ PCI_DEVICE_DATA(INTEL, HDA_5_3400_SERIES_1, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2568 	/* Poulsbo */
2569 	{ PCI_DEVICE_DATA(INTEL, HDA_POULSBO, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE |
2570 	  AZX_DCAPS_POSFIX_LPIB) },
2571 	/* Oaktrail */
2572 	{ PCI_DEVICE_DATA(INTEL, HDA_OAKTRAIL, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE) },
2573 	/* BayTrail */
2574 	{ PCI_DEVICE_DATA(INTEL, HDA_BYT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL) },
2575 	/* Braswell */
2576 	{ PCI_DEVICE_DATA(INTEL, HDA_BSW, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL) },
2577 	/* ICH6 */
2578 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH6, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2579 	/* ICH7 */
2580 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH7, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2581 	/* ESB2 */
2582 	{ PCI_DEVICE_DATA(INTEL, HDA_ESB2, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2583 	/* ICH8 */
2584 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH8, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2585 	/* ICH9 */
2586 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH9_0, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2587 	/* ICH9 */
2588 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH9_1, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2589 	/* ICH10 */
2590 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH10_0, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2591 	/* ICH10 */
2592 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH10_1, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2593 	/* Generic Intel */
2594 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2595 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2596 	  .class_mask = 0xffffff,
2597 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2598 	/* ATI SB 450/600/700/800/900 */
2599 	{ PCI_VDEVICE(ATI, 0x437b),
2600 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2601 	{ PCI_VDEVICE(ATI, 0x4383),
2602 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2603 	/* AMD Hudson */
2604 	{ PCI_VDEVICE(AMD, 0x780d),
2605 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2606 	/* AMD, X370 & co */
2607 	{ PCI_VDEVICE(AMD, 0x1457),
2608 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2609 	/* AMD, X570 & co */
2610 	{ PCI_VDEVICE(AMD, 0x1487),
2611 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2612 	/* AMD Stoney */
2613 	{ PCI_VDEVICE(AMD, 0x157a),
2614 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2615 			 AZX_DCAPS_PM_RUNTIME },
2616 	/* AMD Raven */
2617 	{ PCI_VDEVICE(AMD, 0x15e3),
2618 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2619 	/* ATI HDMI */
2620 	{ PCI_VDEVICE(ATI, 0x0002),
2621 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2622 	  AZX_DCAPS_PM_RUNTIME },
2623 	{ PCI_VDEVICE(ATI, 0x1308),
2624 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2625 	{ PCI_VDEVICE(ATI, 0x157a),
2626 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2627 	{ PCI_VDEVICE(ATI, 0x15b3),
2628 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2629 	{ PCI_VDEVICE(ATI, 0x793b),
2630 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2631 	{ PCI_VDEVICE(ATI, 0x7919),
2632 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2633 	{ PCI_VDEVICE(ATI, 0x960f),
2634 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2635 	{ PCI_VDEVICE(ATI, 0x970f),
2636 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2637 	{ PCI_VDEVICE(ATI, 0x9840),
2638 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2639 	{ PCI_VDEVICE(ATI, 0xaa00),
2640 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2641 	{ PCI_VDEVICE(ATI, 0xaa08),
2642 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2643 	{ PCI_VDEVICE(ATI, 0xaa10),
2644 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2645 	{ PCI_VDEVICE(ATI, 0xaa18),
2646 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2647 	{ PCI_VDEVICE(ATI, 0xaa20),
2648 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2649 	{ PCI_VDEVICE(ATI, 0xaa28),
2650 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2651 	{ PCI_VDEVICE(ATI, 0xaa30),
2652 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2653 	{ PCI_VDEVICE(ATI, 0xaa38),
2654 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2655 	{ PCI_VDEVICE(ATI, 0xaa40),
2656 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2657 	{ PCI_VDEVICE(ATI, 0xaa48),
2658 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2659 	{ PCI_VDEVICE(ATI, 0xaa50),
2660 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2661 	{ PCI_VDEVICE(ATI, 0xaa58),
2662 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2663 	{ PCI_VDEVICE(ATI, 0xaa60),
2664 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2665 	{ PCI_VDEVICE(ATI, 0xaa68),
2666 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2667 	{ PCI_VDEVICE(ATI, 0xaa80),
2668 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2669 	{ PCI_VDEVICE(ATI, 0xaa88),
2670 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2671 	{ PCI_VDEVICE(ATI, 0xaa90),
2672 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2673 	{ PCI_VDEVICE(ATI, 0xaa98),
2674 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2675 	{ PCI_VDEVICE(ATI, 0x9902),
2676 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2677 	{ PCI_VDEVICE(ATI, 0xaaa0),
2678 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2679 	{ PCI_VDEVICE(ATI, 0xaaa8),
2680 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2681 	{ PCI_VDEVICE(ATI, 0xaab0),
2682 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2683 	{ PCI_VDEVICE(ATI, 0xaac0),
2684 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2685 	  AZX_DCAPS_PM_RUNTIME },
2686 	{ PCI_VDEVICE(ATI, 0xaac8),
2687 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2688 	  AZX_DCAPS_PM_RUNTIME },
2689 	{ PCI_VDEVICE(ATI, 0xaad8),
2690 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2691 	  AZX_DCAPS_PM_RUNTIME },
2692 	{ PCI_VDEVICE(ATI, 0xaae0),
2693 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2694 	  AZX_DCAPS_PM_RUNTIME },
2695 	{ PCI_VDEVICE(ATI, 0xaae8),
2696 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2697 	  AZX_DCAPS_PM_RUNTIME },
2698 	{ PCI_VDEVICE(ATI, 0xaaf0),
2699 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2700 	  AZX_DCAPS_PM_RUNTIME },
2701 	{ PCI_VDEVICE(ATI, 0xaaf8),
2702 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2703 	  AZX_DCAPS_PM_RUNTIME },
2704 	{ PCI_VDEVICE(ATI, 0xab00),
2705 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2706 	  AZX_DCAPS_PM_RUNTIME },
2707 	{ PCI_VDEVICE(ATI, 0xab08),
2708 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2709 	  AZX_DCAPS_PM_RUNTIME },
2710 	{ PCI_VDEVICE(ATI, 0xab10),
2711 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2712 	  AZX_DCAPS_PM_RUNTIME },
2713 	{ PCI_VDEVICE(ATI, 0xab18),
2714 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2715 	  AZX_DCAPS_PM_RUNTIME },
2716 	{ PCI_VDEVICE(ATI, 0xab20),
2717 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2718 	  AZX_DCAPS_PM_RUNTIME },
2719 	{ PCI_VDEVICE(ATI, 0xab28),
2720 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2721 	  AZX_DCAPS_PM_RUNTIME },
2722 	{ PCI_VDEVICE(ATI, 0xab30),
2723 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2724 	  AZX_DCAPS_PM_RUNTIME },
2725 	{ PCI_VDEVICE(ATI, 0xab38),
2726 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2727 	  AZX_DCAPS_PM_RUNTIME },
2728 	{ PCI_VDEVICE(ATI, 0xab40),
2729 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2730 	  AZX_DCAPS_PM_RUNTIME },
2731 	/* GLENFLY */
2732 	{ PCI_DEVICE(PCI_VENDOR_ID_GLENFLY, PCI_ANY_ID),
2733 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2734 	  .class_mask = 0xffffff,
2735 	  .driver_data = AZX_DRIVER_GFHDMI | AZX_DCAPS_POSFIX_LPIB |
2736 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2737 	/* VIA VT8251/VT8237A */
2738 	{ PCI_VDEVICE(VIA, 0x3288), .driver_data = AZX_DRIVER_VIA },
2739 	/* VIA GFX VT7122/VX900 */
2740 	{ PCI_VDEVICE(VIA, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2741 	/* VIA GFX VT6122/VX11 */
2742 	{ PCI_VDEVICE(VIA, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2743 	/* SIS966 */
2744 	{ PCI_VDEVICE(SI, 0x7502), .driver_data = AZX_DRIVER_SIS },
2745 	/* ULI M5461 */
2746 	{ PCI_VDEVICE(AL, 0x5461), .driver_data = AZX_DRIVER_ULI },
2747 	/* NVIDIA MCP */
2748 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2749 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2750 	  .class_mask = 0xffffff,
2751 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2752 	/* Teradici */
2753 	{ PCI_DEVICE(0x6549, 0x1200),
2754 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2755 	{ PCI_DEVICE(0x6549, 0x2200),
2756 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2757 	/* Creative X-Fi (CA0110-IBG) */
2758 	/* CTHDA chips */
2759 	{ PCI_VDEVICE(CREATIVE, 0x0010),
2760 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2761 	{ PCI_VDEVICE(CREATIVE, 0x0012),
2762 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2763 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2764 	/* the following entry conflicts with snd-ctxfi driver,
2765 	 * as ctxfi driver mutates from HD-audio to native mode with
2766 	 * a special command sequence.
2767 	 */
2768 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2769 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2770 	  .class_mask = 0xffffff,
2771 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2772 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2773 #else
2774 	/* this entry seems still valid -- i.e. without emu20kx chip */
2775 	{ PCI_VDEVICE(CREATIVE, 0x0009),
2776 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2777 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2778 #endif
2779 	/* CM8888 */
2780 	{ PCI_VDEVICE(CMEDIA, 0x5011),
2781 	  .driver_data = AZX_DRIVER_CMEDIA |
2782 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2783 	/* Vortex86MX */
2784 	{ PCI_VDEVICE(RDC, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2785 	/* VMware HDAudio */
2786 	{ PCI_VDEVICE(VMWARE, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2787 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2788 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2789 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2790 	  .class_mask = 0xffffff,
2791 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2792 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2793 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2794 	  .class_mask = 0xffffff,
2795 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2796 	/* Zhaoxin */
2797 	{ PCI_VDEVICE(ZHAOXIN, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2798 	{ PCI_VDEVICE(ZHAOXIN, 0x9141),
2799 	 .driver_data = AZX_DRIVER_ZHAOXINHDMI | AZX_DCAPS_POSFIX_LPIB |
2800 	 AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2801 	{ PCI_VDEVICE(ZHAOXIN, 0x9142),
2802 	 .driver_data = AZX_DRIVER_ZHAOXINHDMI | AZX_DCAPS_POSFIX_LPIB |
2803 	 AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2804 	{ PCI_VDEVICE(ZHAOXIN, 0x9144),
2805 	 .driver_data = AZX_DRIVER_ZHAOXINHDMI | AZX_DCAPS_POSFIX_LPIB |
2806 	 AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2807 	{ PCI_VDEVICE(ZHAOXIN, 0x9145),
2808 	 .driver_data = AZX_DRIVER_ZHAOXINHDMI | AZX_DCAPS_POSFIX_LPIB |
2809 	 AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2810 	{ PCI_VDEVICE(ZHAOXIN, 0x9146),
2811 	 .driver_data = AZX_DRIVER_ZHAOXINHDMI | AZX_DCAPS_POSFIX_LPIB |
2812 	 AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2813 	/* Loongson HDAudio*/
2814 	{ PCI_VDEVICE(LOONGSON, PCI_DEVICE_ID_LOONGSON_HDA),
2815 	  .driver_data = AZX_DRIVER_LOONGSON | AZX_DCAPS_NO_TCSEL },
2816 	{ PCI_VDEVICE(LOONGSON, PCI_DEVICE_ID_LOONGSON_HDMI),
2817 	  .driver_data = AZX_DRIVER_LOONGSON | AZX_DCAPS_NO_TCSEL },
2818 	{ 0, }
2819 };
2820 MODULE_DEVICE_TABLE(pci, azx_ids);
2821 
2822 /* pci_driver definition */
2823 static struct pci_driver azx_driver = {
2824 	.name = KBUILD_MODNAME,
2825 	.id_table = azx_ids,
2826 	.probe = azx_probe,
2827 	.remove = azx_remove,
2828 	.shutdown = azx_shutdown,
2829 	.driver = {
2830 		.pm = pm_ptr(&azx_pm),
2831 	},
2832 };
2833 
2834 module_pci_driver(azx_driver);
2835