xref: /linux/sound/pci/hda/hda_intel.c (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
1 /*
2  *
3  *  hda_intel.c - Implementation of primary alsa driver code base
4  *                for Intel HD Audio.
5  *
6  *  Copyright(c) 2004 Intel Corporation. All rights reserved.
7  *
8  *  Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
9  *                     PeiSen Hou <pshou@realtek.com.tw>
10  *
11  *  This program is free software; you can redistribute it and/or modify it
12  *  under the terms of the GNU General Public License as published by the Free
13  *  Software Foundation; either version 2 of the License, or (at your option)
14  *  any later version.
15  *
16  *  This program is distributed in the hope that it will be useful, but WITHOUT
17  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
19  *  more details.
20  *
21  *  You should have received a copy of the GNU General Public License along with
22  *  this program; if not, write to the Free Software Foundation, Inc., 59
23  *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
24  *
25  *  CONTACTS:
26  *
27  *  Matt Jared		matt.jared@intel.com
28  *  Andy Kopp		andy.kopp@intel.com
29  *  Dan Kogan		dan.d.kogan@intel.com
30  *
31  *  CHANGES:
32  *
33  *  2004.12.01	Major rewrite by tiwai, merged the work of pshou
34  *
35  */
36 
37 #include <linux/delay.h>
38 #include <linux/interrupt.h>
39 #include <linux/kernel.h>
40 #include <linux/module.h>
41 #include <linux/dma-mapping.h>
42 #include <linux/moduleparam.h>
43 #include <linux/init.h>
44 #include <linux/slab.h>
45 #include <linux/pci.h>
46 #include <linux/mutex.h>
47 #include <linux/io.h>
48 #include <linux/pm_runtime.h>
49 #include <linux/clocksource.h>
50 #include <linux/time.h>
51 #include <linux/completion.h>
52 
53 #ifdef CONFIG_X86
54 /* for snoop control */
55 #include <asm/pgtable.h>
56 #include <asm/cacheflush.h>
57 #endif
58 #include <sound/core.h>
59 #include <sound/initval.h>
60 #include <sound/hdaudio.h>
61 #include <sound/hda_i915.h>
62 #include <linux/vgaarb.h>
63 #include <linux/vga_switcheroo.h>
64 #include <linux/firmware.h>
65 #include "hda_codec.h"
66 #include "hda_controller.h"
67 #include "hda_intel.h"
68 
69 #define CREATE_TRACE_POINTS
70 #include "hda_intel_trace.h"
71 
72 /* position fix mode */
73 enum {
74 	POS_FIX_AUTO,
75 	POS_FIX_LPIB,
76 	POS_FIX_POSBUF,
77 	POS_FIX_VIACOMBO,
78 	POS_FIX_COMBO,
79 };
80 
81 /* Defines for ATI HD Audio support in SB450 south bridge */
82 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
83 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
84 
85 /* Defines for Nvidia HDA support */
86 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
87 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
88 #define NVIDIA_HDA_ISTRM_COH          0x4d
89 #define NVIDIA_HDA_OSTRM_COH          0x4c
90 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
91 
92 /* Defines for Intel SCH HDA snoop control */
93 #define INTEL_SCH_HDA_DEVC      0x78
94 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
95 
96 /* Define IN stream 0 FIFO size offset in VIA controller */
97 #define VIA_IN_STREAM0_FIFO_SIZE_OFFSET	0x90
98 /* Define VIA HD Audio Device ID*/
99 #define VIA_HDAC_DEVICE_ID		0x3288
100 
101 /* max number of SDs */
102 /* ICH, ATI and VIA have 4 playback and 4 capture */
103 #define ICH6_NUM_CAPTURE	4
104 #define ICH6_NUM_PLAYBACK	4
105 
106 /* ULI has 6 playback and 5 capture */
107 #define ULI_NUM_CAPTURE		5
108 #define ULI_NUM_PLAYBACK	6
109 
110 /* ATI HDMI may have up to 8 playbacks and 0 capture */
111 #define ATIHDMI_NUM_CAPTURE	0
112 #define ATIHDMI_NUM_PLAYBACK	8
113 
114 /* TERA has 4 playback and 3 capture */
115 #define TERA_NUM_CAPTURE	3
116 #define TERA_NUM_PLAYBACK	4
117 
118 
119 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
120 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
121 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
122 static char *model[SNDRV_CARDS];
123 static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
124 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
125 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
126 static int probe_only[SNDRV_CARDS];
127 static int jackpoll_ms[SNDRV_CARDS];
128 static bool single_cmd;
129 static int enable_msi = -1;
130 #ifdef CONFIG_SND_HDA_PATCH_LOADER
131 static char *patch[SNDRV_CARDS];
132 #endif
133 #ifdef CONFIG_SND_HDA_INPUT_BEEP
134 static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
135 					CONFIG_SND_HDA_INPUT_BEEP_MODE};
136 #endif
137 
138 module_param_array(index, int, NULL, 0444);
139 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
140 module_param_array(id, charp, NULL, 0444);
141 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
142 module_param_array(enable, bool, NULL, 0444);
143 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
144 module_param_array(model, charp, NULL, 0444);
145 MODULE_PARM_DESC(model, "Use the given board model.");
146 module_param_array(position_fix, int, NULL, 0444);
147 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
148 		 "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO).");
149 module_param_array(bdl_pos_adj, int, NULL, 0644);
150 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
151 module_param_array(probe_mask, int, NULL, 0444);
152 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
153 module_param_array(probe_only, int, NULL, 0444);
154 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
155 module_param_array(jackpoll_ms, int, NULL, 0444);
156 MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
157 module_param(single_cmd, bool, 0444);
158 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
159 		 "(for debugging only).");
160 module_param(enable_msi, bint, 0444);
161 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
162 #ifdef CONFIG_SND_HDA_PATCH_LOADER
163 module_param_array(patch, charp, NULL, 0444);
164 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
165 #endif
166 #ifdef CONFIG_SND_HDA_INPUT_BEEP
167 module_param_array(beep_mode, bool, NULL, 0444);
168 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
169 			    "(0=off, 1=on) (default=1).");
170 #endif
171 
172 #ifdef CONFIG_PM
173 static int param_set_xint(const char *val, const struct kernel_param *kp);
174 static const struct kernel_param_ops param_ops_xint = {
175 	.set = param_set_xint,
176 	.get = param_get_int,
177 };
178 #define param_check_xint param_check_int
179 
180 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
181 module_param(power_save, xint, 0644);
182 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
183 		 "(in second, 0 = disable).");
184 
185 /* reset the HD-audio controller in power save mode.
186  * this may give more power-saving, but will take longer time to
187  * wake up.
188  */
189 static bool power_save_controller = 1;
190 module_param(power_save_controller, bool, 0644);
191 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
192 #else
193 #define power_save	0
194 #endif /* CONFIG_PM */
195 
196 static int align_buffer_size = -1;
197 module_param(align_buffer_size, bint, 0644);
198 MODULE_PARM_DESC(align_buffer_size,
199 		"Force buffer and period sizes to be multiple of 128 bytes.");
200 
201 #ifdef CONFIG_X86
202 static int hda_snoop = -1;
203 module_param_named(snoop, hda_snoop, bint, 0444);
204 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
205 #else
206 #define hda_snoop		true
207 #endif
208 
209 
210 MODULE_LICENSE("GPL");
211 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
212 			 "{Intel, ICH6M},"
213 			 "{Intel, ICH7},"
214 			 "{Intel, ESB2},"
215 			 "{Intel, ICH8},"
216 			 "{Intel, ICH9},"
217 			 "{Intel, ICH10},"
218 			 "{Intel, PCH},"
219 			 "{Intel, CPT},"
220 			 "{Intel, PPT},"
221 			 "{Intel, LPT},"
222 			 "{Intel, LPT_LP},"
223 			 "{Intel, WPT_LP},"
224 			 "{Intel, SPT},"
225 			 "{Intel, SPT_LP},"
226 			 "{Intel, HPT},"
227 			 "{Intel, PBG},"
228 			 "{Intel, SCH},"
229 			 "{ATI, SB450},"
230 			 "{ATI, SB600},"
231 			 "{ATI, RS600},"
232 			 "{ATI, RS690},"
233 			 "{ATI, RS780},"
234 			 "{ATI, R600},"
235 			 "{ATI, RV630},"
236 			 "{ATI, RV610},"
237 			 "{ATI, RV670},"
238 			 "{ATI, RV635},"
239 			 "{ATI, RV620},"
240 			 "{ATI, RV770},"
241 			 "{VIA, VT8251},"
242 			 "{VIA, VT8237A},"
243 			 "{SiS, SIS966},"
244 			 "{ULI, M5461}}");
245 MODULE_DESCRIPTION("Intel HDA driver");
246 
247 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
248 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
249 #define SUPPORT_VGA_SWITCHEROO
250 #endif
251 #endif
252 
253 
254 /*
255  */
256 
257 /* driver types */
258 enum {
259 	AZX_DRIVER_ICH,
260 	AZX_DRIVER_PCH,
261 	AZX_DRIVER_SCH,
262 	AZX_DRIVER_HDMI,
263 	AZX_DRIVER_ATI,
264 	AZX_DRIVER_ATIHDMI,
265 	AZX_DRIVER_ATIHDMI_NS,
266 	AZX_DRIVER_VIA,
267 	AZX_DRIVER_SIS,
268 	AZX_DRIVER_ULI,
269 	AZX_DRIVER_NVIDIA,
270 	AZX_DRIVER_TERA,
271 	AZX_DRIVER_CTX,
272 	AZX_DRIVER_CTHDA,
273 	AZX_DRIVER_CMEDIA,
274 	AZX_DRIVER_GENERIC,
275 	AZX_NUM_DRIVERS, /* keep this as last entry */
276 };
277 
278 #define azx_get_snoop_type(chip) \
279 	(((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
280 #define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
281 
282 /* quirks for old Intel chipsets */
283 #define AZX_DCAPS_INTEL_ICH \
284 	(AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
285 
286 /* quirks for Intel PCH */
287 #define AZX_DCAPS_INTEL_PCH_NOPM \
288 	(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
289 	 AZX_DCAPS_REVERSE_ASSIGN | AZX_DCAPS_SNOOP_TYPE(SCH))
290 
291 #define AZX_DCAPS_INTEL_PCH \
292 	(AZX_DCAPS_INTEL_PCH_NOPM | AZX_DCAPS_PM_RUNTIME)
293 
294 #define AZX_DCAPS_INTEL_HASWELL \
295 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
296 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_POWERWELL |\
297 	 AZX_DCAPS_SNOOP_TYPE(SCH))
298 
299 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
300 #define AZX_DCAPS_INTEL_BROADWELL \
301 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
302 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_POWERWELL |\
303 	 AZX_DCAPS_SNOOP_TYPE(SCH))
304 
305 #define AZX_DCAPS_INTEL_BAYTRAIL \
306 	(AZX_DCAPS_INTEL_PCH_NOPM | AZX_DCAPS_I915_POWERWELL)
307 
308 #define AZX_DCAPS_INTEL_BRASWELL \
309 	(AZX_DCAPS_INTEL_PCH | AZX_DCAPS_I915_POWERWELL)
310 
311 #define AZX_DCAPS_INTEL_SKYLAKE \
312 	(AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG |\
313 	 AZX_DCAPS_I915_POWERWELL)
314 
315 /* quirks for ATI SB / AMD Hudson */
316 #define AZX_DCAPS_PRESET_ATI_SB \
317 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB |\
318 	 AZX_DCAPS_SNOOP_TYPE(ATI))
319 
320 /* quirks for ATI/AMD HDMI */
321 #define AZX_DCAPS_PRESET_ATI_HDMI \
322 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB|\
323 	 AZX_DCAPS_NO_MSI64)
324 
325 /* quirks for ATI HDMI with snoop off */
326 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
327 	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
328 
329 /* quirks for Nvidia */
330 #define AZX_DCAPS_PRESET_NVIDIA \
331 	(AZX_DCAPS_RIRB_DELAY | AZX_DCAPS_NO_MSI | /*AZX_DCAPS_ALIGN_BUFSIZE |*/ \
332 	 AZX_DCAPS_NO_64BIT | AZX_DCAPS_CORBRP_SELF_CLEAR |\
333 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
334 
335 #define AZX_DCAPS_PRESET_CTHDA \
336 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
337 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
338 
339 /*
340  * VGA-switcher support
341  */
342 #ifdef SUPPORT_VGA_SWITCHEROO
343 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
344 #else
345 #define use_vga_switcheroo(chip)	0
346 #endif
347 
348 #define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \
349 					((pci)->device == 0x0c0c) || \
350 					((pci)->device == 0x0d0c) || \
351 					((pci)->device == 0x160c))
352 
353 static char *driver_short_names[] = {
354 	[AZX_DRIVER_ICH] = "HDA Intel",
355 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
356 	[AZX_DRIVER_SCH] = "HDA Intel MID",
357 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
358 	[AZX_DRIVER_ATI] = "HDA ATI SB",
359 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
360 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
361 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
362 	[AZX_DRIVER_SIS] = "HDA SIS966",
363 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
364 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
365 	[AZX_DRIVER_TERA] = "HDA Teradici",
366 	[AZX_DRIVER_CTX] = "HDA Creative",
367 	[AZX_DRIVER_CTHDA] = "HDA Creative",
368 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
369 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
370 };
371 
372 #ifdef CONFIG_X86
373 static void __mark_pages_wc(struct azx *chip, struct snd_dma_buffer *dmab, bool on)
374 {
375 	int pages;
376 
377 	if (azx_snoop(chip))
378 		return;
379 	if (!dmab || !dmab->area || !dmab->bytes)
380 		return;
381 
382 #ifdef CONFIG_SND_DMA_SGBUF
383 	if (dmab->dev.type == SNDRV_DMA_TYPE_DEV_SG) {
384 		struct snd_sg_buf *sgbuf = dmab->private_data;
385 		if (chip->driver_type == AZX_DRIVER_CMEDIA)
386 			return; /* deal with only CORB/RIRB buffers */
387 		if (on)
388 			set_pages_array_wc(sgbuf->page_table, sgbuf->pages);
389 		else
390 			set_pages_array_wb(sgbuf->page_table, sgbuf->pages);
391 		return;
392 	}
393 #endif
394 
395 	pages = (dmab->bytes + PAGE_SIZE - 1) >> PAGE_SHIFT;
396 	if (on)
397 		set_memory_wc((unsigned long)dmab->area, pages);
398 	else
399 		set_memory_wb((unsigned long)dmab->area, pages);
400 }
401 
402 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
403 				 bool on)
404 {
405 	__mark_pages_wc(chip, buf, on);
406 }
407 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
408 				   struct snd_pcm_substream *substream, bool on)
409 {
410 	if (azx_dev->wc_marked != on) {
411 		__mark_pages_wc(chip, snd_pcm_get_dma_buf(substream), on);
412 		azx_dev->wc_marked = on;
413 	}
414 }
415 #else
416 /* NOP for other archs */
417 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
418 				 bool on)
419 {
420 }
421 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
422 				   struct snd_pcm_substream *substream, bool on)
423 {
424 }
425 #endif
426 
427 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
428 
429 /*
430  * initialize the PCI registers
431  */
432 /* update bits in a PCI register byte */
433 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
434 			    unsigned char mask, unsigned char val)
435 {
436 	unsigned char data;
437 
438 	pci_read_config_byte(pci, reg, &data);
439 	data &= ~mask;
440 	data |= (val & mask);
441 	pci_write_config_byte(pci, reg, data);
442 }
443 
444 static void azx_init_pci(struct azx *chip)
445 {
446 	int snoop_type = azx_get_snoop_type(chip);
447 
448 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
449 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
450 	 * Ensuring these bits are 0 clears playback static on some HD Audio
451 	 * codecs.
452 	 * The PCI register TCSEL is defined in the Intel manuals.
453 	 */
454 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
455 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
456 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
457 	}
458 
459 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
460 	 * we need to enable snoop.
461 	 */
462 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
463 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
464 			azx_snoop(chip));
465 		update_pci_byte(chip->pci,
466 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
467 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
468 	}
469 
470 	/* For NVIDIA HDA, enable snoop */
471 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
472 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
473 			azx_snoop(chip));
474 		update_pci_byte(chip->pci,
475 				NVIDIA_HDA_TRANSREG_ADDR,
476 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
477 		update_pci_byte(chip->pci,
478 				NVIDIA_HDA_ISTRM_COH,
479 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
480 		update_pci_byte(chip->pci,
481 				NVIDIA_HDA_OSTRM_COH,
482 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
483 	}
484 
485 	/* Enable SCH/PCH snoop if needed */
486 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
487 		unsigned short snoop;
488 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
489 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
490 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
491 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
492 			if (!azx_snoop(chip))
493 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
494 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
495 			pci_read_config_word(chip->pci,
496 				INTEL_SCH_HDA_DEVC, &snoop);
497 		}
498 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
499 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
500 			"Disabled" : "Enabled");
501         }
502 }
503 
504 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
505 {
506 	struct hdac_bus *bus = azx_bus(chip);
507 
508 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
509 		snd_hdac_set_codec_wakeup(bus, true);
510 	azx_init_chip(chip, full_reset);
511 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
512 		snd_hdac_set_codec_wakeup(bus, false);
513 }
514 
515 /* calculate runtime delay from LPIB */
516 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
517 				   unsigned int pos)
518 {
519 	struct snd_pcm_substream *substream = azx_dev->core.substream;
520 	int stream = substream->stream;
521 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
522 	int delay;
523 
524 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
525 		delay = pos - lpib_pos;
526 	else
527 		delay = lpib_pos - pos;
528 	if (delay < 0) {
529 		if (delay >= azx_dev->core.delay_negative_threshold)
530 			delay = 0;
531 		else
532 			delay += azx_dev->core.bufsize;
533 	}
534 
535 	if (delay >= azx_dev->core.period_bytes) {
536 		dev_info(chip->card->dev,
537 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
538 			 delay, azx_dev->core.period_bytes);
539 		delay = 0;
540 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
541 		chip->get_delay[stream] = NULL;
542 	}
543 
544 	return bytes_to_frames(substream->runtime, delay);
545 }
546 
547 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
548 
549 /* called from IRQ */
550 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
551 {
552 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
553 	int ok;
554 
555 	ok = azx_position_ok(chip, azx_dev);
556 	if (ok == 1) {
557 		azx_dev->irq_pending = 0;
558 		return ok;
559 	} else if (ok == 0) {
560 		/* bogus IRQ, process it later */
561 		azx_dev->irq_pending = 1;
562 		schedule_work(&hda->irq_pending_work);
563 	}
564 	return 0;
565 }
566 
567 /* Enable/disable i915 display power for the link */
568 static int azx_intel_link_power(struct azx *chip, bool enable)
569 {
570 	struct hdac_bus *bus = azx_bus(chip);
571 
572 	return snd_hdac_display_power(bus, enable);
573 }
574 
575 /*
576  * Check whether the current DMA position is acceptable for updating
577  * periods.  Returns non-zero if it's OK.
578  *
579  * Many HD-audio controllers appear pretty inaccurate about
580  * the update-IRQ timing.  The IRQ is issued before actually the
581  * data is processed.  So, we need to process it afterwords in a
582  * workqueue.
583  */
584 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
585 {
586 	struct snd_pcm_substream *substream = azx_dev->core.substream;
587 	int stream = substream->stream;
588 	u32 wallclk;
589 	unsigned int pos;
590 
591 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
592 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
593 		return -1;	/* bogus (too early) interrupt */
594 
595 	if (chip->get_position[stream])
596 		pos = chip->get_position[stream](chip, azx_dev);
597 	else { /* use the position buffer as default */
598 		pos = azx_get_pos_posbuf(chip, azx_dev);
599 		if (!pos || pos == (u32)-1) {
600 			dev_info(chip->card->dev,
601 				 "Invalid position buffer, using LPIB read method instead.\n");
602 			chip->get_position[stream] = azx_get_pos_lpib;
603 			if (chip->get_position[0] == azx_get_pos_lpib &&
604 			    chip->get_position[1] == azx_get_pos_lpib)
605 				azx_bus(chip)->use_posbuf = false;
606 			pos = azx_get_pos_lpib(chip, azx_dev);
607 			chip->get_delay[stream] = NULL;
608 		} else {
609 			chip->get_position[stream] = azx_get_pos_posbuf;
610 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
611 				chip->get_delay[stream] = azx_get_delay_from_lpib;
612 		}
613 	}
614 
615 	if (pos >= azx_dev->core.bufsize)
616 		pos = 0;
617 
618 	if (WARN_ONCE(!azx_dev->core.period_bytes,
619 		      "hda-intel: zero azx_dev->period_bytes"))
620 		return -1; /* this shouldn't happen! */
621 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
622 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
623 		/* NG - it's below the first next period boundary */
624 		return chip->bdl_pos_adj[chip->dev_index] ? 0 : -1;
625 	azx_dev->core.start_wallclk += wallclk;
626 	return 1; /* OK, it's fine */
627 }
628 
629 /*
630  * The work for pending PCM period updates.
631  */
632 static void azx_irq_pending_work(struct work_struct *work)
633 {
634 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
635 	struct azx *chip = &hda->chip;
636 	struct hdac_bus *bus = azx_bus(chip);
637 	struct hdac_stream *s;
638 	int pending, ok;
639 
640 	if (!hda->irq_pending_warned) {
641 		dev_info(chip->card->dev,
642 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
643 			 chip->card->number);
644 		hda->irq_pending_warned = 1;
645 	}
646 
647 	for (;;) {
648 		pending = 0;
649 		spin_lock_irq(&bus->reg_lock);
650 		list_for_each_entry(s, &bus->stream_list, list) {
651 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
652 			if (!azx_dev->irq_pending ||
653 			    !s->substream ||
654 			    !s->running)
655 				continue;
656 			ok = azx_position_ok(chip, azx_dev);
657 			if (ok > 0) {
658 				azx_dev->irq_pending = 0;
659 				spin_unlock(&bus->reg_lock);
660 				snd_pcm_period_elapsed(s->substream);
661 				spin_lock(&bus->reg_lock);
662 			} else if (ok < 0) {
663 				pending = 0;	/* too early */
664 			} else
665 				pending++;
666 		}
667 		spin_unlock_irq(&bus->reg_lock);
668 		if (!pending)
669 			return;
670 		msleep(1);
671 	}
672 }
673 
674 /* clear irq_pending flags and assure no on-going workq */
675 static void azx_clear_irq_pending(struct azx *chip)
676 {
677 	struct hdac_bus *bus = azx_bus(chip);
678 	struct hdac_stream *s;
679 
680 	spin_lock_irq(&bus->reg_lock);
681 	list_for_each_entry(s, &bus->stream_list, list) {
682 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
683 		azx_dev->irq_pending = 0;
684 	}
685 	spin_unlock_irq(&bus->reg_lock);
686 }
687 
688 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
689 {
690 	struct hdac_bus *bus = azx_bus(chip);
691 
692 	if (request_irq(chip->pci->irq, azx_interrupt,
693 			chip->msi ? 0 : IRQF_SHARED,
694 			KBUILD_MODNAME, chip)) {
695 		dev_err(chip->card->dev,
696 			"unable to grab IRQ %d, disabling device\n",
697 			chip->pci->irq);
698 		if (do_disconnect)
699 			snd_card_disconnect(chip->card);
700 		return -1;
701 	}
702 	bus->irq = chip->pci->irq;
703 	pci_intx(chip->pci, !chip->msi);
704 	return 0;
705 }
706 
707 /* get the current DMA position with correction on VIA chips */
708 static unsigned int azx_via_get_position(struct azx *chip,
709 					 struct azx_dev *azx_dev)
710 {
711 	unsigned int link_pos, mini_pos, bound_pos;
712 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
713 	unsigned int fifo_size;
714 
715 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
716 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
717 		/* Playback, no problem using link position */
718 		return link_pos;
719 	}
720 
721 	/* Capture */
722 	/* For new chipset,
723 	 * use mod to get the DMA position just like old chipset
724 	 */
725 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
726 	mod_dma_pos %= azx_dev->core.period_bytes;
727 
728 	/* azx_dev->fifo_size can't get FIFO size of in stream.
729 	 * Get from base address + offset.
730 	 */
731 	fifo_size = readw(azx_bus(chip)->remap_addr +
732 			  VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
733 
734 	if (azx_dev->insufficient) {
735 		/* Link position never gather than FIFO size */
736 		if (link_pos <= fifo_size)
737 			return 0;
738 
739 		azx_dev->insufficient = 0;
740 	}
741 
742 	if (link_pos <= fifo_size)
743 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
744 	else
745 		mini_pos = link_pos - fifo_size;
746 
747 	/* Find nearest previous boudary */
748 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
749 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
750 	if (mod_link_pos >= fifo_size)
751 		bound_pos = link_pos - mod_link_pos;
752 	else if (mod_dma_pos >= mod_mini_pos)
753 		bound_pos = mini_pos - mod_mini_pos;
754 	else {
755 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
756 		if (bound_pos >= azx_dev->core.bufsize)
757 			bound_pos = 0;
758 	}
759 
760 	/* Calculate real DMA position we want */
761 	return bound_pos + mod_dma_pos;
762 }
763 
764 #ifdef CONFIG_PM
765 static DEFINE_MUTEX(card_list_lock);
766 static LIST_HEAD(card_list);
767 
768 static void azx_add_card_list(struct azx *chip)
769 {
770 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
771 	mutex_lock(&card_list_lock);
772 	list_add(&hda->list, &card_list);
773 	mutex_unlock(&card_list_lock);
774 }
775 
776 static void azx_del_card_list(struct azx *chip)
777 {
778 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
779 	mutex_lock(&card_list_lock);
780 	list_del_init(&hda->list);
781 	mutex_unlock(&card_list_lock);
782 }
783 
784 /* trigger power-save check at writing parameter */
785 static int param_set_xint(const char *val, const struct kernel_param *kp)
786 {
787 	struct hda_intel *hda;
788 	struct azx *chip;
789 	int prev = power_save;
790 	int ret = param_set_int(val, kp);
791 
792 	if (ret || prev == power_save)
793 		return ret;
794 
795 	mutex_lock(&card_list_lock);
796 	list_for_each_entry(hda, &card_list, list) {
797 		chip = &hda->chip;
798 		if (!hda->probe_continued || chip->disabled)
799 			continue;
800 		snd_hda_set_power_save(&chip->bus, power_save * 1000);
801 	}
802 	mutex_unlock(&card_list_lock);
803 	return 0;
804 }
805 #else
806 #define azx_add_card_list(chip) /* NOP */
807 #define azx_del_card_list(chip) /* NOP */
808 #endif /* CONFIG_PM */
809 
810 /* Intel HSW/BDW display HDA controller is in GPU. Both its power and link BCLK
811  * depends on GPU. Two Extended Mode registers EM4 (M value) and EM5 (N Value)
812  * are used to convert CDClk (Core Display Clock) to 24MHz BCLK:
813  * BCLK = CDCLK * M / N
814  * The values will be lost when the display power well is disabled and need to
815  * be restored to avoid abnormal playback speed.
816  */
817 static void haswell_set_bclk(struct hda_intel *hda)
818 {
819 	struct azx *chip = &hda->chip;
820 	int cdclk_freq;
821 	unsigned int bclk_m, bclk_n;
822 
823 	if (!hda->need_i915_power)
824 		return;
825 
826 	cdclk_freq = snd_hdac_get_display_clk(azx_bus(chip));
827 	switch (cdclk_freq) {
828 	case 337500:
829 		bclk_m = 16;
830 		bclk_n = 225;
831 		break;
832 
833 	case 450000:
834 	default: /* default CDCLK 450MHz */
835 		bclk_m = 4;
836 		bclk_n = 75;
837 		break;
838 
839 	case 540000:
840 		bclk_m = 4;
841 		bclk_n = 90;
842 		break;
843 
844 	case 675000:
845 		bclk_m = 8;
846 		bclk_n = 225;
847 		break;
848 	}
849 
850 	azx_writew(chip, HSW_EM4, bclk_m);
851 	azx_writew(chip, HSW_EM5, bclk_n);
852 }
853 
854 #if defined(CONFIG_PM_SLEEP) || defined(SUPPORT_VGA_SWITCHEROO)
855 /*
856  * power management
857  */
858 static int azx_suspend(struct device *dev)
859 {
860 	struct snd_card *card = dev_get_drvdata(dev);
861 	struct azx *chip;
862 	struct hda_intel *hda;
863 	struct hdac_bus *bus;
864 
865 	if (!card)
866 		return 0;
867 
868 	chip = card->private_data;
869 	hda = container_of(chip, struct hda_intel, chip);
870 	if (chip->disabled || hda->init_failed || !chip->running)
871 		return 0;
872 
873 	bus = azx_bus(chip);
874 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
875 	azx_clear_irq_pending(chip);
876 	azx_stop_chip(chip);
877 	azx_enter_link_reset(chip);
878 	if (bus->irq >= 0) {
879 		free_irq(bus->irq, chip);
880 		bus->irq = -1;
881 	}
882 
883 	if (chip->msi)
884 		pci_disable_msi(chip->pci);
885 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
886 		&& hda->need_i915_power)
887 		snd_hdac_display_power(bus, false);
888 
889 	trace_azx_suspend(chip);
890 	return 0;
891 }
892 
893 static int azx_resume(struct device *dev)
894 {
895 	struct pci_dev *pci = to_pci_dev(dev);
896 	struct snd_card *card = dev_get_drvdata(dev);
897 	struct azx *chip;
898 	struct hda_intel *hda;
899 
900 	if (!card)
901 		return 0;
902 
903 	chip = card->private_data;
904 	hda = container_of(chip, struct hda_intel, chip);
905 	if (chip->disabled || hda->init_failed || !chip->running)
906 		return 0;
907 
908 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
909 		&& hda->need_i915_power) {
910 		snd_hdac_display_power(azx_bus(chip), true);
911 		haswell_set_bclk(hda);
912 	}
913 	if (chip->msi)
914 		if (pci_enable_msi(pci) < 0)
915 			chip->msi = 0;
916 	if (azx_acquire_irq(chip, 1) < 0)
917 		return -EIO;
918 	azx_init_pci(chip);
919 
920 	hda_intel_init_chip(chip, true);
921 
922 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
923 
924 	trace_azx_resume(chip);
925 	return 0;
926 }
927 #endif /* CONFIG_PM_SLEEP || SUPPORT_VGA_SWITCHEROO */
928 
929 #ifdef CONFIG_PM
930 static int azx_runtime_suspend(struct device *dev)
931 {
932 	struct snd_card *card = dev_get_drvdata(dev);
933 	struct azx *chip;
934 	struct hda_intel *hda;
935 
936 	if (!card)
937 		return 0;
938 
939 	chip = card->private_data;
940 	hda = container_of(chip, struct hda_intel, chip);
941 	if (chip->disabled || hda->init_failed)
942 		return 0;
943 
944 	if (!azx_has_pm_runtime(chip))
945 		return 0;
946 
947 	/* enable controller wake up event */
948 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
949 		  STATESTS_INT_MASK);
950 
951 	azx_stop_chip(chip);
952 	azx_enter_link_reset(chip);
953 	azx_clear_irq_pending(chip);
954 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
955 		&& hda->need_i915_power)
956 		snd_hdac_display_power(azx_bus(chip), false);
957 
958 	trace_azx_runtime_suspend(chip);
959 	return 0;
960 }
961 
962 static int azx_runtime_resume(struct device *dev)
963 {
964 	struct snd_card *card = dev_get_drvdata(dev);
965 	struct azx *chip;
966 	struct hda_intel *hda;
967 	struct hdac_bus *bus;
968 	struct hda_codec *codec;
969 	int status;
970 
971 	if (!card)
972 		return 0;
973 
974 	chip = card->private_data;
975 	hda = container_of(chip, struct hda_intel, chip);
976 	if (chip->disabled || hda->init_failed)
977 		return 0;
978 
979 	if (!azx_has_pm_runtime(chip))
980 		return 0;
981 
982 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
983 		bus = azx_bus(chip);
984 		if (hda->need_i915_power) {
985 			snd_hdac_display_power(bus, true);
986 			haswell_set_bclk(hda);
987 		} else {
988 			/* toggle codec wakeup bit for STATESTS read */
989 			snd_hdac_set_codec_wakeup(bus, true);
990 			snd_hdac_set_codec_wakeup(bus, false);
991 		}
992 	}
993 
994 	/* Read STATESTS before controller reset */
995 	status = azx_readw(chip, STATESTS);
996 
997 	azx_init_pci(chip);
998 	hda_intel_init_chip(chip, true);
999 
1000 	if (status) {
1001 		list_for_each_codec(codec, &chip->bus)
1002 			if (status & (1 << codec->addr))
1003 				schedule_delayed_work(&codec->jackpoll_work,
1004 						      codec->jackpoll_interval);
1005 	}
1006 
1007 	/* disable controller Wake Up event*/
1008 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
1009 			~STATESTS_INT_MASK);
1010 
1011 	trace_azx_runtime_resume(chip);
1012 	return 0;
1013 }
1014 
1015 static int azx_runtime_idle(struct device *dev)
1016 {
1017 	struct snd_card *card = dev_get_drvdata(dev);
1018 	struct azx *chip;
1019 	struct hda_intel *hda;
1020 
1021 	if (!card)
1022 		return 0;
1023 
1024 	chip = card->private_data;
1025 	hda = container_of(chip, struct hda_intel, chip);
1026 	if (chip->disabled || hda->init_failed)
1027 		return 0;
1028 
1029 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1030 	    azx_bus(chip)->codec_powered || !chip->running)
1031 		return -EBUSY;
1032 
1033 	return 0;
1034 }
1035 
1036 static const struct dev_pm_ops azx_pm = {
1037 	SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1038 	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1039 };
1040 
1041 #define AZX_PM_OPS	&azx_pm
1042 #else
1043 #define AZX_PM_OPS	NULL
1044 #endif /* CONFIG_PM */
1045 
1046 
1047 static int azx_probe_continue(struct azx *chip);
1048 
1049 #ifdef SUPPORT_VGA_SWITCHEROO
1050 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1051 
1052 static void azx_vs_set_state(struct pci_dev *pci,
1053 			     enum vga_switcheroo_state state)
1054 {
1055 	struct snd_card *card = pci_get_drvdata(pci);
1056 	struct azx *chip = card->private_data;
1057 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1058 	bool disabled;
1059 
1060 	wait_for_completion(&hda->probe_wait);
1061 	if (hda->init_failed)
1062 		return;
1063 
1064 	disabled = (state == VGA_SWITCHEROO_OFF);
1065 	if (chip->disabled == disabled)
1066 		return;
1067 
1068 	if (!hda->probe_continued) {
1069 		chip->disabled = disabled;
1070 		if (!disabled) {
1071 			dev_info(chip->card->dev,
1072 				 "Start delayed initialization\n");
1073 			if (azx_probe_continue(chip) < 0) {
1074 				dev_err(chip->card->dev, "initialization error\n");
1075 				hda->init_failed = true;
1076 			}
1077 		}
1078 	} else {
1079 		dev_info(chip->card->dev, "%s via VGA-switcheroo\n",
1080 			 disabled ? "Disabling" : "Enabling");
1081 		if (disabled) {
1082 			pm_runtime_put_sync_suspend(card->dev);
1083 			azx_suspend(card->dev);
1084 			/* when we get suspended by vga switcheroo we end up in D3cold,
1085 			 * however we have no ACPI handle, so pci/acpi can't put us there,
1086 			 * put ourselves there */
1087 			pci->current_state = PCI_D3cold;
1088 			chip->disabled = true;
1089 			if (snd_hda_lock_devices(&chip->bus))
1090 				dev_warn(chip->card->dev,
1091 					 "Cannot lock devices!\n");
1092 		} else {
1093 			snd_hda_unlock_devices(&chip->bus);
1094 			pm_runtime_get_noresume(card->dev);
1095 			chip->disabled = false;
1096 			azx_resume(card->dev);
1097 		}
1098 	}
1099 }
1100 
1101 static bool azx_vs_can_switch(struct pci_dev *pci)
1102 {
1103 	struct snd_card *card = pci_get_drvdata(pci);
1104 	struct azx *chip = card->private_data;
1105 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1106 
1107 	wait_for_completion(&hda->probe_wait);
1108 	if (hda->init_failed)
1109 		return false;
1110 	if (chip->disabled || !hda->probe_continued)
1111 		return true;
1112 	if (snd_hda_lock_devices(&chip->bus))
1113 		return false;
1114 	snd_hda_unlock_devices(&chip->bus);
1115 	return true;
1116 }
1117 
1118 static void init_vga_switcheroo(struct azx *chip)
1119 {
1120 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1121 	struct pci_dev *p = get_bound_vga(chip->pci);
1122 	if (p) {
1123 		dev_info(chip->card->dev,
1124 			 "Handle VGA-switcheroo audio client\n");
1125 		hda->use_vga_switcheroo = 1;
1126 		pci_dev_put(p);
1127 	}
1128 }
1129 
1130 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1131 	.set_gpu_state = azx_vs_set_state,
1132 	.can_switch = azx_vs_can_switch,
1133 };
1134 
1135 static int register_vga_switcheroo(struct azx *chip)
1136 {
1137 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1138 	int err;
1139 
1140 	if (!hda->use_vga_switcheroo)
1141 		return 0;
1142 	/* FIXME: currently only handling DIS controller
1143 	 * is there any machine with two switchable HDMI audio controllers?
1144 	 */
1145 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops,
1146 						    VGA_SWITCHEROO_DIS,
1147 						    hda->probe_continued);
1148 	if (err < 0)
1149 		return err;
1150 	hda->vga_switcheroo_registered = 1;
1151 
1152 	/* register as an optimus hdmi audio power domain */
1153 	vga_switcheroo_init_domain_pm_optimus_hdmi_audio(chip->card->dev,
1154 							 &hda->hdmi_pm_domain);
1155 	return 0;
1156 }
1157 #else
1158 #define init_vga_switcheroo(chip)		/* NOP */
1159 #define register_vga_switcheroo(chip)		0
1160 #define check_hdmi_disabled(pci)	false
1161 #endif /* SUPPORT_VGA_SWITCHER */
1162 
1163 /*
1164  * destructor
1165  */
1166 static int azx_free(struct azx *chip)
1167 {
1168 	struct pci_dev *pci = chip->pci;
1169 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1170 	struct hdac_bus *bus = azx_bus(chip);
1171 
1172 	if (azx_has_pm_runtime(chip) && chip->running)
1173 		pm_runtime_get_noresume(&pci->dev);
1174 
1175 	azx_del_card_list(chip);
1176 
1177 	hda->init_failed = 1; /* to be sure */
1178 	complete_all(&hda->probe_wait);
1179 
1180 	if (use_vga_switcheroo(hda)) {
1181 		if (chip->disabled && hda->probe_continued)
1182 			snd_hda_unlock_devices(&chip->bus);
1183 		if (hda->vga_switcheroo_registered)
1184 			vga_switcheroo_unregister_client(chip->pci);
1185 	}
1186 
1187 	if (bus->chip_init) {
1188 		azx_clear_irq_pending(chip);
1189 		azx_stop_all_streams(chip);
1190 		azx_stop_chip(chip);
1191 	}
1192 
1193 	if (bus->irq >= 0)
1194 		free_irq(bus->irq, (void*)chip);
1195 	if (chip->msi)
1196 		pci_disable_msi(chip->pci);
1197 	iounmap(bus->remap_addr);
1198 
1199 	azx_free_stream_pages(chip);
1200 	azx_free_streams(chip);
1201 	snd_hdac_bus_exit(bus);
1202 
1203 	if (chip->region_requested)
1204 		pci_release_regions(chip->pci);
1205 
1206 	pci_disable_device(chip->pci);
1207 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1208 	release_firmware(chip->fw);
1209 #endif
1210 
1211 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
1212 		if (hda->need_i915_power)
1213 			snd_hdac_display_power(bus, false);
1214 		snd_hdac_i915_exit(bus);
1215 	}
1216 	kfree(hda);
1217 
1218 	return 0;
1219 }
1220 
1221 static int azx_dev_disconnect(struct snd_device *device)
1222 {
1223 	struct azx *chip = device->device_data;
1224 
1225 	chip->bus.shutdown = 1;
1226 	return 0;
1227 }
1228 
1229 static int azx_dev_free(struct snd_device *device)
1230 {
1231 	return azx_free(device->device_data);
1232 }
1233 
1234 #ifdef SUPPORT_VGA_SWITCHEROO
1235 /*
1236  * Check of disabled HDMI controller by vga-switcheroo
1237  */
1238 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1239 {
1240 	struct pci_dev *p;
1241 
1242 	/* check only discrete GPU */
1243 	switch (pci->vendor) {
1244 	case PCI_VENDOR_ID_ATI:
1245 	case PCI_VENDOR_ID_AMD:
1246 	case PCI_VENDOR_ID_NVIDIA:
1247 		if (pci->devfn == 1) {
1248 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1249 							pci->bus->number, 0);
1250 			if (p) {
1251 				if ((p->class >> 8) == PCI_CLASS_DISPLAY_VGA)
1252 					return p;
1253 				pci_dev_put(p);
1254 			}
1255 		}
1256 		break;
1257 	}
1258 	return NULL;
1259 }
1260 
1261 static bool check_hdmi_disabled(struct pci_dev *pci)
1262 {
1263 	bool vga_inactive = false;
1264 	struct pci_dev *p = get_bound_vga(pci);
1265 
1266 	if (p) {
1267 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1268 			vga_inactive = true;
1269 		pci_dev_put(p);
1270 	}
1271 	return vga_inactive;
1272 }
1273 #endif /* SUPPORT_VGA_SWITCHEROO */
1274 
1275 /*
1276  * white/black-listing for position_fix
1277  */
1278 static struct snd_pci_quirk position_fix_list[] = {
1279 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1280 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1281 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1282 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1283 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1284 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1285 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1286 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1287 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1288 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1289 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1290 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1291 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1292 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1293 	{}
1294 };
1295 
1296 static int check_position_fix(struct azx *chip, int fix)
1297 {
1298 	const struct snd_pci_quirk *q;
1299 
1300 	switch (fix) {
1301 	case POS_FIX_AUTO:
1302 	case POS_FIX_LPIB:
1303 	case POS_FIX_POSBUF:
1304 	case POS_FIX_VIACOMBO:
1305 	case POS_FIX_COMBO:
1306 		return fix;
1307 	}
1308 
1309 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1310 	if (q) {
1311 		dev_info(chip->card->dev,
1312 			 "position_fix set to %d for device %04x:%04x\n",
1313 			 q->value, q->subvendor, q->subdevice);
1314 		return q->value;
1315 	}
1316 
1317 	/* Check VIA/ATI HD Audio Controller exist */
1318 	if (chip->driver_caps & AZX_DCAPS_POSFIX_VIA) {
1319 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1320 		return POS_FIX_VIACOMBO;
1321 	}
1322 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1323 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1324 		return POS_FIX_LPIB;
1325 	}
1326 	return POS_FIX_AUTO;
1327 }
1328 
1329 static void assign_position_fix(struct azx *chip, int fix)
1330 {
1331 	static azx_get_pos_callback_t callbacks[] = {
1332 		[POS_FIX_AUTO] = NULL,
1333 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1334 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1335 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1336 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1337 	};
1338 
1339 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1340 
1341 	/* combo mode uses LPIB only for playback */
1342 	if (fix == POS_FIX_COMBO)
1343 		chip->get_position[1] = NULL;
1344 
1345 	if (fix == POS_FIX_POSBUF &&
1346 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1347 		chip->get_delay[0] = chip->get_delay[1] =
1348 			azx_get_delay_from_lpib;
1349 	}
1350 
1351 }
1352 
1353 /*
1354  * black-lists for probe_mask
1355  */
1356 static struct snd_pci_quirk probe_mask_list[] = {
1357 	/* Thinkpad often breaks the controller communication when accessing
1358 	 * to the non-working (or non-existing) modem codec slot.
1359 	 */
1360 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1361 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1362 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1363 	/* broken BIOS */
1364 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1365 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1366 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1367 	/* forced codec slots */
1368 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1369 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1370 	/* WinFast VP200 H (Teradici) user reported broken communication */
1371 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1372 	{}
1373 };
1374 
1375 #define AZX_FORCE_CODEC_MASK	0x100
1376 
1377 static void check_probe_mask(struct azx *chip, int dev)
1378 {
1379 	const struct snd_pci_quirk *q;
1380 
1381 	chip->codec_probe_mask = probe_mask[dev];
1382 	if (chip->codec_probe_mask == -1) {
1383 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1384 		if (q) {
1385 			dev_info(chip->card->dev,
1386 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1387 				 q->value, q->subvendor, q->subdevice);
1388 			chip->codec_probe_mask = q->value;
1389 		}
1390 	}
1391 
1392 	/* check forced option */
1393 	if (chip->codec_probe_mask != -1 &&
1394 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1395 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1396 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1397 			 (int)azx_bus(chip)->codec_mask);
1398 	}
1399 }
1400 
1401 /*
1402  * white/black-list for enable_msi
1403  */
1404 static struct snd_pci_quirk msi_black_list[] = {
1405 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1406 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1407 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1408 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1409 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1410 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1411 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1412 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1413 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1414 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1415 	{}
1416 };
1417 
1418 static void check_msi(struct azx *chip)
1419 {
1420 	const struct snd_pci_quirk *q;
1421 
1422 	if (enable_msi >= 0) {
1423 		chip->msi = !!enable_msi;
1424 		return;
1425 	}
1426 	chip->msi = 1;	/* enable MSI as default */
1427 	q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
1428 	if (q) {
1429 		dev_info(chip->card->dev,
1430 			 "msi for device %04x:%04x set to %d\n",
1431 			 q->subvendor, q->subdevice, q->value);
1432 		chip->msi = q->value;
1433 		return;
1434 	}
1435 
1436 	/* NVidia chipsets seem to cause troubles with MSI */
1437 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1438 		dev_info(chip->card->dev, "Disabling MSI\n");
1439 		chip->msi = 0;
1440 	}
1441 }
1442 
1443 /* check the snoop mode availability */
1444 static void azx_check_snoop_available(struct azx *chip)
1445 {
1446 	int snoop = hda_snoop;
1447 
1448 	if (snoop >= 0) {
1449 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1450 			 snoop ? "snoop" : "non-snoop");
1451 		chip->snoop = snoop;
1452 		return;
1453 	}
1454 
1455 	snoop = true;
1456 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1457 	    chip->driver_type == AZX_DRIVER_VIA) {
1458 		/* force to non-snoop mode for a new VIA controller
1459 		 * when BIOS is set
1460 		 */
1461 		u8 val;
1462 		pci_read_config_byte(chip->pci, 0x42, &val);
1463 		if (!(val & 0x80) && chip->pci->revision == 0x30)
1464 			snoop = false;
1465 	}
1466 
1467 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1468 		snoop = false;
1469 
1470 	chip->snoop = snoop;
1471 	if (!snoop)
1472 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1473 }
1474 
1475 static void azx_probe_work(struct work_struct *work)
1476 {
1477 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
1478 	azx_probe_continue(&hda->chip);
1479 }
1480 
1481 /*
1482  * constructor
1483  */
1484 static const struct hdac_io_ops pci_hda_io_ops;
1485 static const struct hda_controller_ops pci_hda_ops;
1486 
1487 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1488 		      int dev, unsigned int driver_caps,
1489 		      struct azx **rchip)
1490 {
1491 	static struct snd_device_ops ops = {
1492 		.dev_disconnect = azx_dev_disconnect,
1493 		.dev_free = azx_dev_free,
1494 	};
1495 	struct hda_intel *hda;
1496 	struct azx *chip;
1497 	int err;
1498 
1499 	*rchip = NULL;
1500 
1501 	err = pci_enable_device(pci);
1502 	if (err < 0)
1503 		return err;
1504 
1505 	hda = kzalloc(sizeof(*hda), GFP_KERNEL);
1506 	if (!hda) {
1507 		pci_disable_device(pci);
1508 		return -ENOMEM;
1509 	}
1510 
1511 	chip = &hda->chip;
1512 	mutex_init(&chip->open_mutex);
1513 	chip->card = card;
1514 	chip->pci = pci;
1515 	chip->ops = &pci_hda_ops;
1516 	chip->driver_caps = driver_caps;
1517 	chip->driver_type = driver_caps & 0xff;
1518 	check_msi(chip);
1519 	chip->dev_index = dev;
1520 	chip->jackpoll_ms = jackpoll_ms;
1521 	INIT_LIST_HEAD(&chip->pcm_list);
1522 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1523 	INIT_LIST_HEAD(&hda->list);
1524 	init_vga_switcheroo(chip);
1525 	init_completion(&hda->probe_wait);
1526 
1527 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1528 
1529 	check_probe_mask(chip, dev);
1530 
1531 	chip->single_cmd = single_cmd;
1532 	azx_check_snoop_available(chip);
1533 
1534 	if (bdl_pos_adj[dev] < 0) {
1535 		switch (chip->driver_type) {
1536 		case AZX_DRIVER_ICH:
1537 		case AZX_DRIVER_PCH:
1538 			bdl_pos_adj[dev] = 1;
1539 			break;
1540 		default:
1541 			bdl_pos_adj[dev] = 32;
1542 			break;
1543 		}
1544 	}
1545 	chip->bdl_pos_adj = bdl_pos_adj;
1546 
1547 	err = azx_bus_init(chip, model[dev], &pci_hda_io_ops);
1548 	if (err < 0) {
1549 		kfree(hda);
1550 		pci_disable_device(pci);
1551 		return err;
1552 	}
1553 
1554 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1555 	if (err < 0) {
1556 		dev_err(card->dev, "Error creating device [card]!\n");
1557 		azx_free(chip);
1558 		return err;
1559 	}
1560 
1561 	/* continue probing in work context as may trigger request module */
1562 	INIT_WORK(&hda->probe_work, azx_probe_work);
1563 
1564 	*rchip = chip;
1565 
1566 	return 0;
1567 }
1568 
1569 static int azx_first_init(struct azx *chip)
1570 {
1571 	int dev = chip->dev_index;
1572 	struct pci_dev *pci = chip->pci;
1573 	struct snd_card *card = chip->card;
1574 	struct hdac_bus *bus = azx_bus(chip);
1575 	int err;
1576 	unsigned short gcap;
1577 	unsigned int dma_bits = 64;
1578 
1579 #if BITS_PER_LONG != 64
1580 	/* Fix up base address on ULI M5461 */
1581 	if (chip->driver_type == AZX_DRIVER_ULI) {
1582 		u16 tmp3;
1583 		pci_read_config_word(pci, 0x40, &tmp3);
1584 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1585 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1586 	}
1587 #endif
1588 
1589 	err = pci_request_regions(pci, "ICH HD audio");
1590 	if (err < 0)
1591 		return err;
1592 	chip->region_requested = 1;
1593 
1594 	bus->addr = pci_resource_start(pci, 0);
1595 	bus->remap_addr = pci_ioremap_bar(pci, 0);
1596 	if (bus->remap_addr == NULL) {
1597 		dev_err(card->dev, "ioremap error\n");
1598 		return -ENXIO;
1599 	}
1600 
1601 	if (chip->msi) {
1602 		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1603 			dev_dbg(card->dev, "Disabling 64bit MSI\n");
1604 			pci->no_64bit_msi = true;
1605 		}
1606 		if (pci_enable_msi(pci) < 0)
1607 			chip->msi = 0;
1608 	}
1609 
1610 	if (azx_acquire_irq(chip, 0) < 0)
1611 		return -EBUSY;
1612 
1613 	pci_set_master(pci);
1614 	synchronize_irq(bus->irq);
1615 
1616 	gcap = azx_readw(chip, GCAP);
1617 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1618 
1619 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1620 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1621 		dma_bits = 40;
1622 
1623 	/* disable SB600 64bit support for safety */
1624 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1625 		struct pci_dev *p_smbus;
1626 		dma_bits = 40;
1627 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1628 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1629 					 NULL);
1630 		if (p_smbus) {
1631 			if (p_smbus->revision < 0x30)
1632 				gcap &= ~AZX_GCAP_64OK;
1633 			pci_dev_put(p_smbus);
1634 		}
1635 	}
1636 
1637 	/* disable 64bit DMA address on some devices */
1638 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1639 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1640 		gcap &= ~AZX_GCAP_64OK;
1641 	}
1642 
1643 	/* disable buffer size rounding to 128-byte multiples if supported */
1644 	if (align_buffer_size >= 0)
1645 		chip->align_buffer_size = !!align_buffer_size;
1646 	else {
1647 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1648 			chip->align_buffer_size = 0;
1649 		else
1650 			chip->align_buffer_size = 1;
1651 	}
1652 
1653 	/* allow 64bit DMA address if supported by H/W */
1654 	if (!(gcap & AZX_GCAP_64OK))
1655 		dma_bits = 32;
1656 	if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
1657 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(dma_bits));
1658 	} else {
1659 		dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
1660 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
1661 	}
1662 
1663 	/* read number of streams from GCAP register instead of using
1664 	 * hardcoded value
1665 	 */
1666 	chip->capture_streams = (gcap >> 8) & 0x0f;
1667 	chip->playback_streams = (gcap >> 12) & 0x0f;
1668 	if (!chip->playback_streams && !chip->capture_streams) {
1669 		/* gcap didn't give any info, switching to old method */
1670 
1671 		switch (chip->driver_type) {
1672 		case AZX_DRIVER_ULI:
1673 			chip->playback_streams = ULI_NUM_PLAYBACK;
1674 			chip->capture_streams = ULI_NUM_CAPTURE;
1675 			break;
1676 		case AZX_DRIVER_ATIHDMI:
1677 		case AZX_DRIVER_ATIHDMI_NS:
1678 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1679 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1680 			break;
1681 		case AZX_DRIVER_GENERIC:
1682 		default:
1683 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1684 			chip->capture_streams = ICH6_NUM_CAPTURE;
1685 			break;
1686 		}
1687 	}
1688 	chip->capture_index_offset = 0;
1689 	chip->playback_index_offset = chip->capture_streams;
1690 	chip->num_streams = chip->playback_streams + chip->capture_streams;
1691 
1692 	/* initialize streams */
1693 	err = azx_init_streams(chip);
1694 	if (err < 0)
1695 		return err;
1696 
1697 	err = azx_alloc_stream_pages(chip);
1698 	if (err < 0)
1699 		return err;
1700 
1701 	/* initialize chip */
1702 	azx_init_pci(chip);
1703 
1704 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
1705 		struct hda_intel *hda;
1706 
1707 		hda = container_of(chip, struct hda_intel, chip);
1708 		haswell_set_bclk(hda);
1709 	}
1710 
1711 	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
1712 
1713 	/* codec detection */
1714 	if (!azx_bus(chip)->codec_mask) {
1715 		dev_err(card->dev, "no codecs found!\n");
1716 		return -ENODEV;
1717 	}
1718 
1719 	strcpy(card->driver, "HDA-Intel");
1720 	strlcpy(card->shortname, driver_short_names[chip->driver_type],
1721 		sizeof(card->shortname));
1722 	snprintf(card->longname, sizeof(card->longname),
1723 		 "%s at 0x%lx irq %i",
1724 		 card->shortname, bus->addr, bus->irq);
1725 
1726 	return 0;
1727 }
1728 
1729 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1730 /* callback from request_firmware_nowait() */
1731 static void azx_firmware_cb(const struct firmware *fw, void *context)
1732 {
1733 	struct snd_card *card = context;
1734 	struct azx *chip = card->private_data;
1735 	struct pci_dev *pci = chip->pci;
1736 
1737 	if (!fw) {
1738 		dev_err(card->dev, "Cannot load firmware, aborting\n");
1739 		goto error;
1740 	}
1741 
1742 	chip->fw = fw;
1743 	if (!chip->disabled) {
1744 		/* continue probing */
1745 		if (azx_probe_continue(chip))
1746 			goto error;
1747 	}
1748 	return; /* OK */
1749 
1750  error:
1751 	snd_card_free(card);
1752 	pci_set_drvdata(pci, NULL);
1753 }
1754 #endif
1755 
1756 /*
1757  * HDA controller ops.
1758  */
1759 
1760 /* PCI register access. */
1761 static void pci_azx_writel(u32 value, u32 __iomem *addr)
1762 {
1763 	writel(value, addr);
1764 }
1765 
1766 static u32 pci_azx_readl(u32 __iomem *addr)
1767 {
1768 	return readl(addr);
1769 }
1770 
1771 static void pci_azx_writew(u16 value, u16 __iomem *addr)
1772 {
1773 	writew(value, addr);
1774 }
1775 
1776 static u16 pci_azx_readw(u16 __iomem *addr)
1777 {
1778 	return readw(addr);
1779 }
1780 
1781 static void pci_azx_writeb(u8 value, u8 __iomem *addr)
1782 {
1783 	writeb(value, addr);
1784 }
1785 
1786 static u8 pci_azx_readb(u8 __iomem *addr)
1787 {
1788 	return readb(addr);
1789 }
1790 
1791 static int disable_msi_reset_irq(struct azx *chip)
1792 {
1793 	struct hdac_bus *bus = azx_bus(chip);
1794 	int err;
1795 
1796 	free_irq(bus->irq, chip);
1797 	bus->irq = -1;
1798 	pci_disable_msi(chip->pci);
1799 	chip->msi = 0;
1800 	err = azx_acquire_irq(chip, 1);
1801 	if (err < 0)
1802 		return err;
1803 
1804 	return 0;
1805 }
1806 
1807 /* DMA page allocation helpers.  */
1808 static int dma_alloc_pages(struct hdac_bus *bus,
1809 			   int type,
1810 			   size_t size,
1811 			   struct snd_dma_buffer *buf)
1812 {
1813 	struct azx *chip = bus_to_azx(bus);
1814 	int err;
1815 
1816 	err = snd_dma_alloc_pages(type,
1817 				  bus->dev,
1818 				  size, buf);
1819 	if (err < 0)
1820 		return err;
1821 	mark_pages_wc(chip, buf, true);
1822 	return 0;
1823 }
1824 
1825 static void dma_free_pages(struct hdac_bus *bus, struct snd_dma_buffer *buf)
1826 {
1827 	struct azx *chip = bus_to_azx(bus);
1828 
1829 	mark_pages_wc(chip, buf, false);
1830 	snd_dma_free_pages(buf);
1831 }
1832 
1833 static int substream_alloc_pages(struct azx *chip,
1834 				 struct snd_pcm_substream *substream,
1835 				 size_t size)
1836 {
1837 	struct azx_dev *azx_dev = get_azx_dev(substream);
1838 	int ret;
1839 
1840 	mark_runtime_wc(chip, azx_dev, substream, false);
1841 	ret = snd_pcm_lib_malloc_pages(substream, size);
1842 	if (ret < 0)
1843 		return ret;
1844 	mark_runtime_wc(chip, azx_dev, substream, true);
1845 	return 0;
1846 }
1847 
1848 static int substream_free_pages(struct azx *chip,
1849 				struct snd_pcm_substream *substream)
1850 {
1851 	struct azx_dev *azx_dev = get_azx_dev(substream);
1852 	mark_runtime_wc(chip, azx_dev, substream, false);
1853 	return snd_pcm_lib_free_pages(substream);
1854 }
1855 
1856 static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
1857 			     struct vm_area_struct *area)
1858 {
1859 #ifdef CONFIG_X86
1860 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1861 	struct azx *chip = apcm->chip;
1862 	if (!azx_snoop(chip) && chip->driver_type != AZX_DRIVER_CMEDIA)
1863 		area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
1864 #endif
1865 }
1866 
1867 static const struct hdac_io_ops pci_hda_io_ops = {
1868 	.reg_writel = pci_azx_writel,
1869 	.reg_readl = pci_azx_readl,
1870 	.reg_writew = pci_azx_writew,
1871 	.reg_readw = pci_azx_readw,
1872 	.reg_writeb = pci_azx_writeb,
1873 	.reg_readb = pci_azx_readb,
1874 	.dma_alloc_pages = dma_alloc_pages,
1875 	.dma_free_pages = dma_free_pages,
1876 };
1877 
1878 static const struct hda_controller_ops pci_hda_ops = {
1879 	.disable_msi_reset_irq = disable_msi_reset_irq,
1880 	.substream_alloc_pages = substream_alloc_pages,
1881 	.substream_free_pages = substream_free_pages,
1882 	.pcm_mmap_prepare = pcm_mmap_prepare,
1883 	.position_check = azx_position_check,
1884 	.link_power = azx_intel_link_power,
1885 };
1886 
1887 static int azx_probe(struct pci_dev *pci,
1888 		     const struct pci_device_id *pci_id)
1889 {
1890 	static int dev;
1891 	struct snd_card *card;
1892 	struct hda_intel *hda;
1893 	struct azx *chip;
1894 	bool schedule_probe;
1895 	int err;
1896 
1897 	if (dev >= SNDRV_CARDS)
1898 		return -ENODEV;
1899 	if (!enable[dev]) {
1900 		dev++;
1901 		return -ENOENT;
1902 	}
1903 
1904 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1905 			   0, &card);
1906 	if (err < 0) {
1907 		dev_err(&pci->dev, "Error creating card!\n");
1908 		return err;
1909 	}
1910 
1911 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
1912 	if (err < 0)
1913 		goto out_free;
1914 	card->private_data = chip;
1915 	hda = container_of(chip, struct hda_intel, chip);
1916 
1917 	pci_set_drvdata(pci, card);
1918 
1919 	err = register_vga_switcheroo(chip);
1920 	if (err < 0) {
1921 		dev_err(card->dev, "Error registering VGA-switcheroo client\n");
1922 		goto out_free;
1923 	}
1924 
1925 	if (check_hdmi_disabled(pci)) {
1926 		dev_info(card->dev, "VGA controller is disabled\n");
1927 		dev_info(card->dev, "Delaying initialization\n");
1928 		chip->disabled = true;
1929 	}
1930 
1931 	schedule_probe = !chip->disabled;
1932 
1933 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1934 	if (patch[dev] && *patch[dev]) {
1935 		dev_info(card->dev, "Applying patch firmware '%s'\n",
1936 			 patch[dev]);
1937 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
1938 					      &pci->dev, GFP_KERNEL, card,
1939 					      azx_firmware_cb);
1940 		if (err < 0)
1941 			goto out_free;
1942 		schedule_probe = false; /* continued in azx_firmware_cb() */
1943 	}
1944 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
1945 
1946 #ifndef CONFIG_SND_HDA_I915
1947 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
1948 		dev_err(card->dev, "Haswell must build in CONFIG_SND_HDA_I915\n");
1949 #endif
1950 
1951 	if (schedule_probe)
1952 		schedule_work(&hda->probe_work);
1953 
1954 	dev++;
1955 	if (chip->disabled)
1956 		complete_all(&hda->probe_wait);
1957 	return 0;
1958 
1959 out_free:
1960 	snd_card_free(card);
1961 	return err;
1962 }
1963 
1964 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
1965 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
1966 	[AZX_DRIVER_NVIDIA] = 8,
1967 	[AZX_DRIVER_TERA] = 1,
1968 };
1969 
1970 static int azx_probe_continue(struct azx *chip)
1971 {
1972 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1973 	struct hdac_bus *bus = azx_bus(chip);
1974 	struct pci_dev *pci = chip->pci;
1975 	int dev = chip->dev_index;
1976 	int err;
1977 
1978 	hda->probe_continued = 1;
1979 
1980 	/* Request display power well for the HDA controller or codec. For
1981 	 * Haswell/Broadwell, both the display HDA controller and codec need
1982 	 * this power. For other platforms, like Baytrail/Braswell, only the
1983 	 * display codec needs the power and it can be released after probe.
1984 	 */
1985 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
1986 		/* HSW/BDW controllers need this power */
1987 		if (CONTROLLER_IN_GPU(pci))
1988 			hda->need_i915_power = 1;
1989 
1990 		err = snd_hdac_i915_init(bus);
1991 		if (err < 0) {
1992 			/* if the controller is bound only with HDMI/DP
1993 			 * (for HSW and BDW), we need to abort the probe;
1994 			 * for other chips, still continue probing as other
1995 			 * codecs can be on the same link.
1996 			 */
1997 			if (CONTROLLER_IN_GPU(pci))
1998 				goto out_free;
1999 			else
2000 				goto skip_i915;
2001 		}
2002 
2003 		err = snd_hdac_display_power(bus, true);
2004 		if (err < 0) {
2005 			dev_err(chip->card->dev,
2006 				"Cannot turn on display power on i915\n");
2007 			goto i915_power_fail;
2008 		}
2009 	}
2010 
2011  skip_i915:
2012 	err = azx_first_init(chip);
2013 	if (err < 0)
2014 		goto out_free;
2015 
2016 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2017 	chip->beep_mode = beep_mode[dev];
2018 #endif
2019 
2020 	/* create codec instances */
2021 	err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2022 	if (err < 0)
2023 		goto out_free;
2024 
2025 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2026 	if (chip->fw) {
2027 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2028 					 chip->fw->data);
2029 		if (err < 0)
2030 			goto out_free;
2031 #ifndef CONFIG_PM
2032 		release_firmware(chip->fw); /* no longer needed */
2033 		chip->fw = NULL;
2034 #endif
2035 	}
2036 #endif
2037 	if ((probe_only[dev] & 1) == 0) {
2038 		err = azx_codec_configure(chip);
2039 		if (err < 0)
2040 			goto out_free;
2041 	}
2042 
2043 	err = snd_card_register(chip->card);
2044 	if (err < 0)
2045 		goto out_free;
2046 
2047 	chip->running = 1;
2048 	azx_add_card_list(chip);
2049 	snd_hda_set_power_save(&chip->bus, power_save * 1000);
2050 	if (azx_has_pm_runtime(chip) || hda->use_vga_switcheroo)
2051 		pm_runtime_put_noidle(&pci->dev);
2052 
2053 out_free:
2054 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
2055 		&& !hda->need_i915_power)
2056 		snd_hdac_display_power(bus, false);
2057 
2058 i915_power_fail:
2059 	if (err < 0)
2060 		hda->init_failed = 1;
2061 	complete_all(&hda->probe_wait);
2062 	return err;
2063 }
2064 
2065 static void azx_remove(struct pci_dev *pci)
2066 {
2067 	struct snd_card *card = pci_get_drvdata(pci);
2068 
2069 	if (card)
2070 		snd_card_free(card);
2071 }
2072 
2073 static void azx_shutdown(struct pci_dev *pci)
2074 {
2075 	struct snd_card *card = pci_get_drvdata(pci);
2076 	struct azx *chip;
2077 
2078 	if (!card)
2079 		return;
2080 	chip = card->private_data;
2081 	if (chip && chip->running)
2082 		azx_stop_chip(chip);
2083 }
2084 
2085 /* PCI IDs */
2086 static const struct pci_device_id azx_ids[] = {
2087 	/* CPT */
2088 	{ PCI_DEVICE(0x8086, 0x1c20),
2089 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2090 	/* PBG */
2091 	{ PCI_DEVICE(0x8086, 0x1d20),
2092 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2093 	/* Panther Point */
2094 	{ PCI_DEVICE(0x8086, 0x1e20),
2095 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2096 	/* Lynx Point */
2097 	{ PCI_DEVICE(0x8086, 0x8c20),
2098 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2099 	/* 9 Series */
2100 	{ PCI_DEVICE(0x8086, 0x8ca0),
2101 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2102 	/* Wellsburg */
2103 	{ PCI_DEVICE(0x8086, 0x8d20),
2104 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2105 	{ PCI_DEVICE(0x8086, 0x8d21),
2106 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2107 	/* Lynx Point-LP */
2108 	{ PCI_DEVICE(0x8086, 0x9c20),
2109 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2110 	/* Lynx Point-LP */
2111 	{ PCI_DEVICE(0x8086, 0x9c21),
2112 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2113 	/* Wildcat Point-LP */
2114 	{ PCI_DEVICE(0x8086, 0x9ca0),
2115 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2116 	/* Sunrise Point */
2117 	{ PCI_DEVICE(0x8086, 0xa170),
2118 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2119 	/* Sunrise Point-LP */
2120 	{ PCI_DEVICE(0x8086, 0x9d70),
2121 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2122 	/* Haswell */
2123 	{ PCI_DEVICE(0x8086, 0x0a0c),
2124 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2125 	{ PCI_DEVICE(0x8086, 0x0c0c),
2126 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2127 	{ PCI_DEVICE(0x8086, 0x0d0c),
2128 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2129 	/* Broadwell */
2130 	{ PCI_DEVICE(0x8086, 0x160c),
2131 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2132 	/* 5 Series/3400 */
2133 	{ PCI_DEVICE(0x8086, 0x3b56),
2134 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2135 	/* Poulsbo */
2136 	{ PCI_DEVICE(0x8086, 0x811b),
2137 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2138 	/* Oaktrail */
2139 	{ PCI_DEVICE(0x8086, 0x080a),
2140 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2141 	/* BayTrail */
2142 	{ PCI_DEVICE(0x8086, 0x0f04),
2143 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2144 	/* Braswell */
2145 	{ PCI_DEVICE(0x8086, 0x2284),
2146 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2147 	/* ICH6 */
2148 	{ PCI_DEVICE(0x8086, 0x2668),
2149 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2150 	/* ICH7 */
2151 	{ PCI_DEVICE(0x8086, 0x27d8),
2152 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2153 	/* ESB2 */
2154 	{ PCI_DEVICE(0x8086, 0x269a),
2155 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2156 	/* ICH8 */
2157 	{ PCI_DEVICE(0x8086, 0x284b),
2158 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2159 	/* ICH9 */
2160 	{ PCI_DEVICE(0x8086, 0x293e),
2161 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2162 	/* ICH9 */
2163 	{ PCI_DEVICE(0x8086, 0x293f),
2164 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2165 	/* ICH10 */
2166 	{ PCI_DEVICE(0x8086, 0x3a3e),
2167 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2168 	/* ICH10 */
2169 	{ PCI_DEVICE(0x8086, 0x3a6e),
2170 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2171 	/* Generic Intel */
2172 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2173 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2174 	  .class_mask = 0xffffff,
2175 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2176 	/* ATI SB 450/600/700/800/900 */
2177 	{ PCI_DEVICE(0x1002, 0x437b),
2178 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2179 	{ PCI_DEVICE(0x1002, 0x4383),
2180 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2181 	/* AMD Hudson */
2182 	{ PCI_DEVICE(0x1022, 0x780d),
2183 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2184 	/* ATI HDMI */
2185 	{ PCI_DEVICE(0x1002, 0x1308),
2186 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2187 	{ PCI_DEVICE(0x1002, 0x157a),
2188 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2189 	{ PCI_DEVICE(0x1002, 0x793b),
2190 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2191 	{ PCI_DEVICE(0x1002, 0x7919),
2192 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2193 	{ PCI_DEVICE(0x1002, 0x960f),
2194 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2195 	{ PCI_DEVICE(0x1002, 0x970f),
2196 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2197 	{ PCI_DEVICE(0x1002, 0x9840),
2198 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2199 	{ PCI_DEVICE(0x1002, 0xaa00),
2200 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2201 	{ PCI_DEVICE(0x1002, 0xaa08),
2202 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2203 	{ PCI_DEVICE(0x1002, 0xaa10),
2204 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2205 	{ PCI_DEVICE(0x1002, 0xaa18),
2206 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2207 	{ PCI_DEVICE(0x1002, 0xaa20),
2208 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2209 	{ PCI_DEVICE(0x1002, 0xaa28),
2210 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2211 	{ PCI_DEVICE(0x1002, 0xaa30),
2212 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2213 	{ PCI_DEVICE(0x1002, 0xaa38),
2214 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2215 	{ PCI_DEVICE(0x1002, 0xaa40),
2216 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2217 	{ PCI_DEVICE(0x1002, 0xaa48),
2218 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2219 	{ PCI_DEVICE(0x1002, 0xaa50),
2220 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2221 	{ PCI_DEVICE(0x1002, 0xaa58),
2222 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2223 	{ PCI_DEVICE(0x1002, 0xaa60),
2224 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2225 	{ PCI_DEVICE(0x1002, 0xaa68),
2226 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2227 	{ PCI_DEVICE(0x1002, 0xaa80),
2228 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2229 	{ PCI_DEVICE(0x1002, 0xaa88),
2230 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2231 	{ PCI_DEVICE(0x1002, 0xaa90),
2232 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2233 	{ PCI_DEVICE(0x1002, 0xaa98),
2234 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2235 	{ PCI_DEVICE(0x1002, 0x9902),
2236 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2237 	{ PCI_DEVICE(0x1002, 0xaaa0),
2238 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2239 	{ PCI_DEVICE(0x1002, 0xaaa8),
2240 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2241 	{ PCI_DEVICE(0x1002, 0xaab0),
2242 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2243 	{ PCI_DEVICE(0x1002, 0xaac0),
2244 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2245 	{ PCI_DEVICE(0x1002, 0xaac8),
2246 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2247 	{ PCI_DEVICE(0x1002, 0xaad8),
2248 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2249 	{ PCI_DEVICE(0x1002, 0xaae8),
2250 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2251 	/* VIA VT8251/VT8237A */
2252 	{ PCI_DEVICE(0x1106, 0x3288),
2253 	  .driver_data = AZX_DRIVER_VIA | AZX_DCAPS_POSFIX_VIA },
2254 	/* VIA GFX VT7122/VX900 */
2255 	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2256 	/* VIA GFX VT6122/VX11 */
2257 	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2258 	/* SIS966 */
2259 	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2260 	/* ULI M5461 */
2261 	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2262 	/* NVIDIA MCP */
2263 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2264 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2265 	  .class_mask = 0xffffff,
2266 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2267 	/* Teradici */
2268 	{ PCI_DEVICE(0x6549, 0x1200),
2269 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2270 	{ PCI_DEVICE(0x6549, 0x2200),
2271 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2272 	/* Creative X-Fi (CA0110-IBG) */
2273 	/* CTHDA chips */
2274 	{ PCI_DEVICE(0x1102, 0x0010),
2275 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2276 	{ PCI_DEVICE(0x1102, 0x0012),
2277 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2278 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2279 	/* the following entry conflicts with snd-ctxfi driver,
2280 	 * as ctxfi driver mutates from HD-audio to native mode with
2281 	 * a special command sequence.
2282 	 */
2283 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2284 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2285 	  .class_mask = 0xffffff,
2286 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2287 	  AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
2288 #else
2289 	/* this entry seems still valid -- i.e. without emu20kx chip */
2290 	{ PCI_DEVICE(0x1102, 0x0009),
2291 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2292 	  AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
2293 #endif
2294 	/* CM8888 */
2295 	{ PCI_DEVICE(0x13f6, 0x5011),
2296 	  .driver_data = AZX_DRIVER_CMEDIA |
2297 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2298 	/* Vortex86MX */
2299 	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2300 	/* VMware HDAudio */
2301 	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2302 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2303 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2304 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2305 	  .class_mask = 0xffffff,
2306 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2307 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2308 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2309 	  .class_mask = 0xffffff,
2310 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2311 	{ 0, }
2312 };
2313 MODULE_DEVICE_TABLE(pci, azx_ids);
2314 
2315 /* pci_driver definition */
2316 static struct pci_driver azx_driver = {
2317 	.name = KBUILD_MODNAME,
2318 	.id_table = azx_ids,
2319 	.probe = azx_probe,
2320 	.remove = azx_remove,
2321 	.shutdown = azx_shutdown,
2322 	.driver = {
2323 		.pm = AZX_PM_OPS,
2324 	},
2325 };
2326 
2327 module_pci_driver(azx_driver);
2328