xref: /openbmc/linux/sound/pci/hda/hda_intel.c (revision fa0a497b)
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_HDA_CGCTL	 0x48
94 #define INTEL_HDA_CGCTL_MISCBDCGE        (0x1 << 6)
95 #define INTEL_SCH_HDA_DEVC      0x78
96 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
97 
98 /* Define IN stream 0 FIFO size offset in VIA controller */
99 #define VIA_IN_STREAM0_FIFO_SIZE_OFFSET	0x90
100 /* Define VIA HD Audio Device ID*/
101 #define VIA_HDAC_DEVICE_ID		0x3288
102 
103 /* max number of SDs */
104 /* ICH, ATI and VIA have 4 playback and 4 capture */
105 #define ICH6_NUM_CAPTURE	4
106 #define ICH6_NUM_PLAYBACK	4
107 
108 /* ULI has 6 playback and 5 capture */
109 #define ULI_NUM_CAPTURE		5
110 #define ULI_NUM_PLAYBACK	6
111 
112 /* ATI HDMI may have up to 8 playbacks and 0 capture */
113 #define ATIHDMI_NUM_CAPTURE	0
114 #define ATIHDMI_NUM_PLAYBACK	8
115 
116 /* TERA has 4 playback and 3 capture */
117 #define TERA_NUM_CAPTURE	3
118 #define TERA_NUM_PLAYBACK	4
119 
120 
121 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
122 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
123 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
124 static char *model[SNDRV_CARDS];
125 static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
126 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
127 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
128 static int probe_only[SNDRV_CARDS];
129 static int jackpoll_ms[SNDRV_CARDS];
130 static bool single_cmd;
131 static int enable_msi = -1;
132 #ifdef CONFIG_SND_HDA_PATCH_LOADER
133 static char *patch[SNDRV_CARDS];
134 #endif
135 #ifdef CONFIG_SND_HDA_INPUT_BEEP
136 static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
137 					CONFIG_SND_HDA_INPUT_BEEP_MODE};
138 #endif
139 
140 module_param_array(index, int, NULL, 0444);
141 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
142 module_param_array(id, charp, NULL, 0444);
143 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
144 module_param_array(enable, bool, NULL, 0444);
145 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
146 module_param_array(model, charp, NULL, 0444);
147 MODULE_PARM_DESC(model, "Use the given board model.");
148 module_param_array(position_fix, int, NULL, 0444);
149 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
150 		 "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO).");
151 module_param_array(bdl_pos_adj, int, NULL, 0644);
152 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
153 module_param_array(probe_mask, int, NULL, 0444);
154 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
155 module_param_array(probe_only, int, NULL, 0444);
156 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
157 module_param_array(jackpoll_ms, int, NULL, 0444);
158 MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
159 module_param(single_cmd, bool, 0444);
160 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
161 		 "(for debugging only).");
162 module_param(enable_msi, bint, 0444);
163 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
164 #ifdef CONFIG_SND_HDA_PATCH_LOADER
165 module_param_array(patch, charp, NULL, 0444);
166 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
167 #endif
168 #ifdef CONFIG_SND_HDA_INPUT_BEEP
169 module_param_array(beep_mode, bool, NULL, 0444);
170 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
171 			    "(0=off, 1=on) (default=1).");
172 #endif
173 
174 #ifdef CONFIG_PM
175 static int param_set_xint(const char *val, const struct kernel_param *kp);
176 static const struct kernel_param_ops param_ops_xint = {
177 	.set = param_set_xint,
178 	.get = param_get_int,
179 };
180 #define param_check_xint param_check_int
181 
182 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
183 module_param(power_save, xint, 0644);
184 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
185 		 "(in second, 0 = disable).");
186 
187 /* reset the HD-audio controller in power save mode.
188  * this may give more power-saving, but will take longer time to
189  * wake up.
190  */
191 static bool power_save_controller = 1;
192 module_param(power_save_controller, bool, 0644);
193 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
194 #else
195 #define power_save	0
196 #endif /* CONFIG_PM */
197 
198 static int align_buffer_size = -1;
199 module_param(align_buffer_size, bint, 0644);
200 MODULE_PARM_DESC(align_buffer_size,
201 		"Force buffer and period sizes to be multiple of 128 bytes.");
202 
203 #ifdef CONFIG_X86
204 static int hda_snoop = -1;
205 module_param_named(snoop, hda_snoop, bint, 0444);
206 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
207 #else
208 #define hda_snoop		true
209 #endif
210 
211 
212 MODULE_LICENSE("GPL");
213 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
214 			 "{Intel, ICH6M},"
215 			 "{Intel, ICH7},"
216 			 "{Intel, ESB2},"
217 			 "{Intel, ICH8},"
218 			 "{Intel, ICH9},"
219 			 "{Intel, ICH10},"
220 			 "{Intel, PCH},"
221 			 "{Intel, CPT},"
222 			 "{Intel, PPT},"
223 			 "{Intel, LPT},"
224 			 "{Intel, LPT_LP},"
225 			 "{Intel, WPT_LP},"
226 			 "{Intel, SPT},"
227 			 "{Intel, SPT_LP},"
228 			 "{Intel, HPT},"
229 			 "{Intel, PBG},"
230 			 "{Intel, SCH},"
231 			 "{ATI, SB450},"
232 			 "{ATI, SB600},"
233 			 "{ATI, RS600},"
234 			 "{ATI, RS690},"
235 			 "{ATI, RS780},"
236 			 "{ATI, R600},"
237 			 "{ATI, RV630},"
238 			 "{ATI, RV610},"
239 			 "{ATI, RV670},"
240 			 "{ATI, RV635},"
241 			 "{ATI, RV620},"
242 			 "{ATI, RV770},"
243 			 "{VIA, VT8251},"
244 			 "{VIA, VT8237A},"
245 			 "{SiS, SIS966},"
246 			 "{ULI, M5461}}");
247 MODULE_DESCRIPTION("Intel HDA driver");
248 
249 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
250 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
251 #define SUPPORT_VGA_SWITCHEROO
252 #endif
253 #endif
254 
255 
256 /*
257  */
258 
259 /* driver types */
260 enum {
261 	AZX_DRIVER_ICH,
262 	AZX_DRIVER_PCH,
263 	AZX_DRIVER_SCH,
264 	AZX_DRIVER_HDMI,
265 	AZX_DRIVER_ATI,
266 	AZX_DRIVER_ATIHDMI,
267 	AZX_DRIVER_ATIHDMI_NS,
268 	AZX_DRIVER_VIA,
269 	AZX_DRIVER_SIS,
270 	AZX_DRIVER_ULI,
271 	AZX_DRIVER_NVIDIA,
272 	AZX_DRIVER_TERA,
273 	AZX_DRIVER_CTX,
274 	AZX_DRIVER_CTHDA,
275 	AZX_DRIVER_CMEDIA,
276 	AZX_DRIVER_GENERIC,
277 	AZX_NUM_DRIVERS, /* keep this as last entry */
278 };
279 
280 #define azx_get_snoop_type(chip) \
281 	(((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
282 #define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
283 
284 /* quirks for old Intel chipsets */
285 #define AZX_DCAPS_INTEL_ICH \
286 	(AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
287 
288 /* quirks for Intel PCH */
289 #define AZX_DCAPS_INTEL_PCH_BASE \
290 	(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
291 	 AZX_DCAPS_SNOOP_TYPE(SCH))
292 
293 /* PCH up to IVB; no runtime PM */
294 #define AZX_DCAPS_INTEL_PCH_NOPM \
295 	(AZX_DCAPS_INTEL_PCH_BASE)
296 
297 /* PCH for HSW/BDW; with runtime PM */
298 #define AZX_DCAPS_INTEL_PCH \
299 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)
300 
301 /* HSW HDMI */
302 #define AZX_DCAPS_INTEL_HASWELL \
303 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
304 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_POWERWELL |\
305 	 AZX_DCAPS_SNOOP_TYPE(SCH))
306 
307 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
308 #define AZX_DCAPS_INTEL_BROADWELL \
309 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
310 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_POWERWELL |\
311 	 AZX_DCAPS_SNOOP_TYPE(SCH))
312 
313 #define AZX_DCAPS_INTEL_BAYTRAIL \
314 	(AZX_DCAPS_INTEL_PCH_NOPM | AZX_DCAPS_I915_POWERWELL)
315 
316 #define AZX_DCAPS_INTEL_BRASWELL \
317 	(AZX_DCAPS_INTEL_PCH | AZX_DCAPS_I915_POWERWELL)
318 
319 #define AZX_DCAPS_INTEL_SKYLAKE \
320 	(AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG |\
321 	 AZX_DCAPS_I915_POWERWELL)
322 
323 #define AZX_DCAPS_INTEL_BROXTON \
324 	(AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG |\
325 	 AZX_DCAPS_I915_POWERWELL)
326 
327 /* quirks for ATI SB / AMD Hudson */
328 #define AZX_DCAPS_PRESET_ATI_SB \
329 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB |\
330 	 AZX_DCAPS_SNOOP_TYPE(ATI))
331 
332 /* quirks for ATI/AMD HDMI */
333 #define AZX_DCAPS_PRESET_ATI_HDMI \
334 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB|\
335 	 AZX_DCAPS_NO_MSI64)
336 
337 /* quirks for ATI HDMI with snoop off */
338 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
339 	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
340 
341 /* quirks for Nvidia */
342 #define AZX_DCAPS_PRESET_NVIDIA \
343 	(AZX_DCAPS_NO_MSI | /*AZX_DCAPS_ALIGN_BUFSIZE |*/ \
344 	 AZX_DCAPS_NO_64BIT | AZX_DCAPS_CORBRP_SELF_CLEAR |\
345 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
346 
347 #define AZX_DCAPS_PRESET_CTHDA \
348 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
349 	 AZX_DCAPS_NO_64BIT |\
350 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
351 
352 /*
353  * vga_switcheroo support
354  */
355 #ifdef SUPPORT_VGA_SWITCHEROO
356 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
357 #else
358 #define use_vga_switcheroo(chip)	0
359 #endif
360 
361 #define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \
362 					((pci)->device == 0x0c0c) || \
363 					((pci)->device == 0x0d0c) || \
364 					((pci)->device == 0x160c))
365 
366 #define IS_SKL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa170)
367 #define IS_SKL_LP(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x9d70)
368 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
369 #define IS_SKL_PLUS(pci) (IS_SKL(pci) || IS_SKL_LP(pci) || IS_BXT(pci))
370 
371 static char *driver_short_names[] = {
372 	[AZX_DRIVER_ICH] = "HDA Intel",
373 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
374 	[AZX_DRIVER_SCH] = "HDA Intel MID",
375 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
376 	[AZX_DRIVER_ATI] = "HDA ATI SB",
377 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
378 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
379 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
380 	[AZX_DRIVER_SIS] = "HDA SIS966",
381 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
382 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
383 	[AZX_DRIVER_TERA] = "HDA Teradici",
384 	[AZX_DRIVER_CTX] = "HDA Creative",
385 	[AZX_DRIVER_CTHDA] = "HDA Creative",
386 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
387 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
388 };
389 
390 #ifdef CONFIG_X86
391 static void __mark_pages_wc(struct azx *chip, struct snd_dma_buffer *dmab, bool on)
392 {
393 	int pages;
394 
395 	if (azx_snoop(chip))
396 		return;
397 	if (!dmab || !dmab->area || !dmab->bytes)
398 		return;
399 
400 #ifdef CONFIG_SND_DMA_SGBUF
401 	if (dmab->dev.type == SNDRV_DMA_TYPE_DEV_SG) {
402 		struct snd_sg_buf *sgbuf = dmab->private_data;
403 		if (chip->driver_type == AZX_DRIVER_CMEDIA)
404 			return; /* deal with only CORB/RIRB buffers */
405 		if (on)
406 			set_pages_array_wc(sgbuf->page_table, sgbuf->pages);
407 		else
408 			set_pages_array_wb(sgbuf->page_table, sgbuf->pages);
409 		return;
410 	}
411 #endif
412 
413 	pages = (dmab->bytes + PAGE_SIZE - 1) >> PAGE_SHIFT;
414 	if (on)
415 		set_memory_wc((unsigned long)dmab->area, pages);
416 	else
417 		set_memory_wb((unsigned long)dmab->area, pages);
418 }
419 
420 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
421 				 bool on)
422 {
423 	__mark_pages_wc(chip, buf, on);
424 }
425 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
426 				   struct snd_pcm_substream *substream, bool on)
427 {
428 	if (azx_dev->wc_marked != on) {
429 		__mark_pages_wc(chip, snd_pcm_get_dma_buf(substream), on);
430 		azx_dev->wc_marked = on;
431 	}
432 }
433 #else
434 /* NOP for other archs */
435 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
436 				 bool on)
437 {
438 }
439 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
440 				   struct snd_pcm_substream *substream, bool on)
441 {
442 }
443 #endif
444 
445 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
446 
447 /*
448  * initialize the PCI registers
449  */
450 /* update bits in a PCI register byte */
451 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
452 			    unsigned char mask, unsigned char val)
453 {
454 	unsigned char data;
455 
456 	pci_read_config_byte(pci, reg, &data);
457 	data &= ~mask;
458 	data |= (val & mask);
459 	pci_write_config_byte(pci, reg, data);
460 }
461 
462 static void azx_init_pci(struct azx *chip)
463 {
464 	int snoop_type = azx_get_snoop_type(chip);
465 
466 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
467 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
468 	 * Ensuring these bits are 0 clears playback static on some HD Audio
469 	 * codecs.
470 	 * The PCI register TCSEL is defined in the Intel manuals.
471 	 */
472 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
473 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
474 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
475 	}
476 
477 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
478 	 * we need to enable snoop.
479 	 */
480 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
481 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
482 			azx_snoop(chip));
483 		update_pci_byte(chip->pci,
484 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
485 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
486 	}
487 
488 	/* For NVIDIA HDA, enable snoop */
489 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
490 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
491 			azx_snoop(chip));
492 		update_pci_byte(chip->pci,
493 				NVIDIA_HDA_TRANSREG_ADDR,
494 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
495 		update_pci_byte(chip->pci,
496 				NVIDIA_HDA_ISTRM_COH,
497 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
498 		update_pci_byte(chip->pci,
499 				NVIDIA_HDA_OSTRM_COH,
500 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
501 	}
502 
503 	/* Enable SCH/PCH snoop if needed */
504 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
505 		unsigned short snoop;
506 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
507 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
508 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
509 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
510 			if (!azx_snoop(chip))
511 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
512 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
513 			pci_read_config_word(chip->pci,
514 				INTEL_SCH_HDA_DEVC, &snoop);
515 		}
516 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
517 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
518 			"Disabled" : "Enabled");
519         }
520 }
521 
522 /*
523  * In BXT-P A0, HD-Audio DMA requests is later than expected,
524  * and makes an audio stream sensitive to system latencies when
525  * 24/32 bits are playing.
526  * Adjusting threshold of DMA fifo to force the DMA request
527  * sooner to improve latency tolerance at the expense of power.
528  */
529 static void bxt_reduce_dma_latency(struct azx *chip)
530 {
531 	u32 val;
532 
533 	val = azx_readl(chip, SKL_EM4L);
534 	val &= (0x3 << 20);
535 	azx_writel(chip, SKL_EM4L, val);
536 }
537 
538 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
539 {
540 	struct hdac_bus *bus = azx_bus(chip);
541 	struct pci_dev *pci = chip->pci;
542 	u32 val;
543 
544 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
545 		snd_hdac_set_codec_wakeup(bus, true);
546 	if (IS_SKL_PLUS(pci)) {
547 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
548 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
549 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
550 	}
551 	azx_init_chip(chip, full_reset);
552 	if (IS_SKL_PLUS(pci)) {
553 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
554 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
555 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
556 	}
557 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
558 		snd_hdac_set_codec_wakeup(bus, false);
559 
560 	/* reduce dma latency to avoid noise */
561 	if (IS_BXT(pci))
562 		bxt_reduce_dma_latency(chip);
563 }
564 
565 /* calculate runtime delay from LPIB */
566 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
567 				   unsigned int pos)
568 {
569 	struct snd_pcm_substream *substream = azx_dev->core.substream;
570 	int stream = substream->stream;
571 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
572 	int delay;
573 
574 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
575 		delay = pos - lpib_pos;
576 	else
577 		delay = lpib_pos - pos;
578 	if (delay < 0) {
579 		if (delay >= azx_dev->core.delay_negative_threshold)
580 			delay = 0;
581 		else
582 			delay += azx_dev->core.bufsize;
583 	}
584 
585 	if (delay >= azx_dev->core.period_bytes) {
586 		dev_info(chip->card->dev,
587 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
588 			 delay, azx_dev->core.period_bytes);
589 		delay = 0;
590 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
591 		chip->get_delay[stream] = NULL;
592 	}
593 
594 	return bytes_to_frames(substream->runtime, delay);
595 }
596 
597 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
598 
599 /* called from IRQ */
600 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
601 {
602 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
603 	int ok;
604 
605 	ok = azx_position_ok(chip, azx_dev);
606 	if (ok == 1) {
607 		azx_dev->irq_pending = 0;
608 		return ok;
609 	} else if (ok == 0) {
610 		/* bogus IRQ, process it later */
611 		azx_dev->irq_pending = 1;
612 		schedule_work(&hda->irq_pending_work);
613 	}
614 	return 0;
615 }
616 
617 /* Enable/disable i915 display power for the link */
618 static int azx_intel_link_power(struct azx *chip, bool enable)
619 {
620 	struct hdac_bus *bus = azx_bus(chip);
621 
622 	return snd_hdac_display_power(bus, enable);
623 }
624 
625 /*
626  * Check whether the current DMA position is acceptable for updating
627  * periods.  Returns non-zero if it's OK.
628  *
629  * Many HD-audio controllers appear pretty inaccurate about
630  * the update-IRQ timing.  The IRQ is issued before actually the
631  * data is processed.  So, we need to process it afterwords in a
632  * workqueue.
633  */
634 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
635 {
636 	struct snd_pcm_substream *substream = azx_dev->core.substream;
637 	int stream = substream->stream;
638 	u32 wallclk;
639 	unsigned int pos;
640 
641 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
642 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
643 		return -1;	/* bogus (too early) interrupt */
644 
645 	if (chip->get_position[stream])
646 		pos = chip->get_position[stream](chip, azx_dev);
647 	else { /* use the position buffer as default */
648 		pos = azx_get_pos_posbuf(chip, azx_dev);
649 		if (!pos || pos == (u32)-1) {
650 			dev_info(chip->card->dev,
651 				 "Invalid position buffer, using LPIB read method instead.\n");
652 			chip->get_position[stream] = azx_get_pos_lpib;
653 			if (chip->get_position[0] == azx_get_pos_lpib &&
654 			    chip->get_position[1] == azx_get_pos_lpib)
655 				azx_bus(chip)->use_posbuf = false;
656 			pos = azx_get_pos_lpib(chip, azx_dev);
657 			chip->get_delay[stream] = NULL;
658 		} else {
659 			chip->get_position[stream] = azx_get_pos_posbuf;
660 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
661 				chip->get_delay[stream] = azx_get_delay_from_lpib;
662 		}
663 	}
664 
665 	if (pos >= azx_dev->core.bufsize)
666 		pos = 0;
667 
668 	if (WARN_ONCE(!azx_dev->core.period_bytes,
669 		      "hda-intel: zero azx_dev->period_bytes"))
670 		return -1; /* this shouldn't happen! */
671 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
672 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
673 		/* NG - it's below the first next period boundary */
674 		return chip->bdl_pos_adj ? 0 : -1;
675 	azx_dev->core.start_wallclk += wallclk;
676 	return 1; /* OK, it's fine */
677 }
678 
679 /*
680  * The work for pending PCM period updates.
681  */
682 static void azx_irq_pending_work(struct work_struct *work)
683 {
684 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
685 	struct azx *chip = &hda->chip;
686 	struct hdac_bus *bus = azx_bus(chip);
687 	struct hdac_stream *s;
688 	int pending, ok;
689 
690 	if (!hda->irq_pending_warned) {
691 		dev_info(chip->card->dev,
692 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
693 			 chip->card->number);
694 		hda->irq_pending_warned = 1;
695 	}
696 
697 	for (;;) {
698 		pending = 0;
699 		spin_lock_irq(&bus->reg_lock);
700 		list_for_each_entry(s, &bus->stream_list, list) {
701 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
702 			if (!azx_dev->irq_pending ||
703 			    !s->substream ||
704 			    !s->running)
705 				continue;
706 			ok = azx_position_ok(chip, azx_dev);
707 			if (ok > 0) {
708 				azx_dev->irq_pending = 0;
709 				spin_unlock(&bus->reg_lock);
710 				snd_pcm_period_elapsed(s->substream);
711 				spin_lock(&bus->reg_lock);
712 			} else if (ok < 0) {
713 				pending = 0;	/* too early */
714 			} else
715 				pending++;
716 		}
717 		spin_unlock_irq(&bus->reg_lock);
718 		if (!pending)
719 			return;
720 		msleep(1);
721 	}
722 }
723 
724 /* clear irq_pending flags and assure no on-going workq */
725 static void azx_clear_irq_pending(struct azx *chip)
726 {
727 	struct hdac_bus *bus = azx_bus(chip);
728 	struct hdac_stream *s;
729 
730 	spin_lock_irq(&bus->reg_lock);
731 	list_for_each_entry(s, &bus->stream_list, list) {
732 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
733 		azx_dev->irq_pending = 0;
734 	}
735 	spin_unlock_irq(&bus->reg_lock);
736 }
737 
738 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
739 {
740 	struct hdac_bus *bus = azx_bus(chip);
741 
742 	if (request_irq(chip->pci->irq, azx_interrupt,
743 			chip->msi ? 0 : IRQF_SHARED,
744 			chip->card->irq_descr, chip)) {
745 		dev_err(chip->card->dev,
746 			"unable to grab IRQ %d, disabling device\n",
747 			chip->pci->irq);
748 		if (do_disconnect)
749 			snd_card_disconnect(chip->card);
750 		return -1;
751 	}
752 	bus->irq = chip->pci->irq;
753 	pci_intx(chip->pci, !chip->msi);
754 	return 0;
755 }
756 
757 /* get the current DMA position with correction on VIA chips */
758 static unsigned int azx_via_get_position(struct azx *chip,
759 					 struct azx_dev *azx_dev)
760 {
761 	unsigned int link_pos, mini_pos, bound_pos;
762 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
763 	unsigned int fifo_size;
764 
765 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
766 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
767 		/* Playback, no problem using link position */
768 		return link_pos;
769 	}
770 
771 	/* Capture */
772 	/* For new chipset,
773 	 * use mod to get the DMA position just like old chipset
774 	 */
775 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
776 	mod_dma_pos %= azx_dev->core.period_bytes;
777 
778 	/* azx_dev->fifo_size can't get FIFO size of in stream.
779 	 * Get from base address + offset.
780 	 */
781 	fifo_size = readw(azx_bus(chip)->remap_addr +
782 			  VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
783 
784 	if (azx_dev->insufficient) {
785 		/* Link position never gather than FIFO size */
786 		if (link_pos <= fifo_size)
787 			return 0;
788 
789 		azx_dev->insufficient = 0;
790 	}
791 
792 	if (link_pos <= fifo_size)
793 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
794 	else
795 		mini_pos = link_pos - fifo_size;
796 
797 	/* Find nearest previous boudary */
798 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
799 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
800 	if (mod_link_pos >= fifo_size)
801 		bound_pos = link_pos - mod_link_pos;
802 	else if (mod_dma_pos >= mod_mini_pos)
803 		bound_pos = mini_pos - mod_mini_pos;
804 	else {
805 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
806 		if (bound_pos >= azx_dev->core.bufsize)
807 			bound_pos = 0;
808 	}
809 
810 	/* Calculate real DMA position we want */
811 	return bound_pos + mod_dma_pos;
812 }
813 
814 #ifdef CONFIG_PM
815 static DEFINE_MUTEX(card_list_lock);
816 static LIST_HEAD(card_list);
817 
818 static void azx_add_card_list(struct azx *chip)
819 {
820 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
821 	mutex_lock(&card_list_lock);
822 	list_add(&hda->list, &card_list);
823 	mutex_unlock(&card_list_lock);
824 }
825 
826 static void azx_del_card_list(struct azx *chip)
827 {
828 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
829 	mutex_lock(&card_list_lock);
830 	list_del_init(&hda->list);
831 	mutex_unlock(&card_list_lock);
832 }
833 
834 /* trigger power-save check at writing parameter */
835 static int param_set_xint(const char *val, const struct kernel_param *kp)
836 {
837 	struct hda_intel *hda;
838 	struct azx *chip;
839 	int prev = power_save;
840 	int ret = param_set_int(val, kp);
841 
842 	if (ret || prev == power_save)
843 		return ret;
844 
845 	mutex_lock(&card_list_lock);
846 	list_for_each_entry(hda, &card_list, list) {
847 		chip = &hda->chip;
848 		if (!hda->probe_continued || chip->disabled)
849 			continue;
850 		snd_hda_set_power_save(&chip->bus, power_save * 1000);
851 	}
852 	mutex_unlock(&card_list_lock);
853 	return 0;
854 }
855 #else
856 #define azx_add_card_list(chip) /* NOP */
857 #define azx_del_card_list(chip) /* NOP */
858 #endif /* CONFIG_PM */
859 
860 #if defined(CONFIG_PM_SLEEP) || defined(SUPPORT_VGA_SWITCHEROO)
861 /*
862  * power management
863  */
864 static int azx_suspend(struct device *dev)
865 {
866 	struct snd_card *card = dev_get_drvdata(dev);
867 	struct azx *chip;
868 	struct hda_intel *hda;
869 	struct hdac_bus *bus;
870 
871 	if (!card)
872 		return 0;
873 
874 	chip = card->private_data;
875 	hda = container_of(chip, struct hda_intel, chip);
876 	if (chip->disabled || hda->init_failed || !chip->running)
877 		return 0;
878 
879 	bus = azx_bus(chip);
880 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
881 	azx_clear_irq_pending(chip);
882 	azx_stop_chip(chip);
883 	azx_enter_link_reset(chip);
884 	if (bus->irq >= 0) {
885 		free_irq(bus->irq, chip);
886 		bus->irq = -1;
887 	}
888 
889 	if (chip->msi)
890 		pci_disable_msi(chip->pci);
891 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
892 		&& hda->need_i915_power)
893 		snd_hdac_display_power(bus, false);
894 
895 	trace_azx_suspend(chip);
896 	return 0;
897 }
898 
899 static int azx_resume(struct device *dev)
900 {
901 	struct pci_dev *pci = to_pci_dev(dev);
902 	struct snd_card *card = dev_get_drvdata(dev);
903 	struct azx *chip;
904 	struct hda_intel *hda;
905 
906 	if (!card)
907 		return 0;
908 
909 	chip = card->private_data;
910 	hda = container_of(chip, struct hda_intel, chip);
911 	if (chip->disabled || hda->init_failed || !chip->running)
912 		return 0;
913 
914 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
915 		&& hda->need_i915_power) {
916 		snd_hdac_display_power(azx_bus(chip), true);
917 		snd_hdac_i915_set_bclk(azx_bus(chip));
918 	}
919 	if (chip->msi)
920 		if (pci_enable_msi(pci) < 0)
921 			chip->msi = 0;
922 	if (azx_acquire_irq(chip, 1) < 0)
923 		return -EIO;
924 	azx_init_pci(chip);
925 
926 	hda_intel_init_chip(chip, true);
927 
928 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
929 
930 	trace_azx_resume(chip);
931 	return 0;
932 }
933 #endif /* CONFIG_PM_SLEEP || SUPPORT_VGA_SWITCHEROO */
934 
935 #ifdef CONFIG_PM_SLEEP
936 /* put codec down to D3 at hibernation for Intel SKL+;
937  * otherwise BIOS may still access the codec and screw up the driver
938  */
939 static int azx_freeze_noirq(struct device *dev)
940 {
941 	struct pci_dev *pci = to_pci_dev(dev);
942 
943 	if (IS_SKL_PLUS(pci))
944 		pci_set_power_state(pci, PCI_D3hot);
945 
946 	return 0;
947 }
948 
949 static int azx_thaw_noirq(struct device *dev)
950 {
951 	struct pci_dev *pci = to_pci_dev(dev);
952 
953 	if (IS_SKL_PLUS(pci))
954 		pci_set_power_state(pci, PCI_D0);
955 
956 	return 0;
957 }
958 #endif /* CONFIG_PM_SLEEP */
959 
960 #ifdef CONFIG_PM
961 static int azx_runtime_suspend(struct device *dev)
962 {
963 	struct snd_card *card = dev_get_drvdata(dev);
964 	struct azx *chip;
965 	struct hda_intel *hda;
966 
967 	if (!card)
968 		return 0;
969 
970 	chip = card->private_data;
971 	hda = container_of(chip, struct hda_intel, chip);
972 	if (chip->disabled || hda->init_failed)
973 		return 0;
974 
975 	if (!azx_has_pm_runtime(chip))
976 		return 0;
977 
978 	/* enable controller wake up event */
979 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
980 		  STATESTS_INT_MASK);
981 
982 	azx_stop_chip(chip);
983 	azx_enter_link_reset(chip);
984 	azx_clear_irq_pending(chip);
985 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
986 		&& hda->need_i915_power)
987 		snd_hdac_display_power(azx_bus(chip), false);
988 
989 	trace_azx_runtime_suspend(chip);
990 	return 0;
991 }
992 
993 static int azx_runtime_resume(struct device *dev)
994 {
995 	struct snd_card *card = dev_get_drvdata(dev);
996 	struct azx *chip;
997 	struct hda_intel *hda;
998 	struct hdac_bus *bus;
999 	struct hda_codec *codec;
1000 	int status;
1001 
1002 	if (!card)
1003 		return 0;
1004 
1005 	chip = card->private_data;
1006 	hda = container_of(chip, struct hda_intel, chip);
1007 	if (chip->disabled || hda->init_failed)
1008 		return 0;
1009 
1010 	if (!azx_has_pm_runtime(chip))
1011 		return 0;
1012 
1013 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
1014 		bus = azx_bus(chip);
1015 		if (hda->need_i915_power) {
1016 			snd_hdac_display_power(bus, true);
1017 			snd_hdac_i915_set_bclk(bus);
1018 		} else {
1019 			/* toggle codec wakeup bit for STATESTS read */
1020 			snd_hdac_set_codec_wakeup(bus, true);
1021 			snd_hdac_set_codec_wakeup(bus, false);
1022 		}
1023 	}
1024 
1025 	/* Read STATESTS before controller reset */
1026 	status = azx_readw(chip, STATESTS);
1027 
1028 	azx_init_pci(chip);
1029 	hda_intel_init_chip(chip, true);
1030 
1031 	if (status) {
1032 		list_for_each_codec(codec, &chip->bus)
1033 			if (status & (1 << codec->addr))
1034 				schedule_delayed_work(&codec->jackpoll_work,
1035 						      codec->jackpoll_interval);
1036 	}
1037 
1038 	/* disable controller Wake Up event*/
1039 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
1040 			~STATESTS_INT_MASK);
1041 
1042 	trace_azx_runtime_resume(chip);
1043 	return 0;
1044 }
1045 
1046 static int azx_runtime_idle(struct device *dev)
1047 {
1048 	struct snd_card *card = dev_get_drvdata(dev);
1049 	struct azx *chip;
1050 	struct hda_intel *hda;
1051 
1052 	if (!card)
1053 		return 0;
1054 
1055 	chip = card->private_data;
1056 	hda = container_of(chip, struct hda_intel, chip);
1057 	if (chip->disabled || hda->init_failed)
1058 		return 0;
1059 
1060 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1061 	    azx_bus(chip)->codec_powered || !chip->running)
1062 		return -EBUSY;
1063 
1064 	return 0;
1065 }
1066 
1067 static const struct dev_pm_ops azx_pm = {
1068 	SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1069 #ifdef CONFIG_PM_SLEEP
1070 	.freeze_noirq = azx_freeze_noirq,
1071 	.thaw_noirq = azx_thaw_noirq,
1072 #endif
1073 	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1074 };
1075 
1076 #define AZX_PM_OPS	&azx_pm
1077 #else
1078 #define AZX_PM_OPS	NULL
1079 #endif /* CONFIG_PM */
1080 
1081 
1082 static int azx_probe_continue(struct azx *chip);
1083 
1084 #ifdef SUPPORT_VGA_SWITCHEROO
1085 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1086 
1087 static void azx_vs_set_state(struct pci_dev *pci,
1088 			     enum vga_switcheroo_state state)
1089 {
1090 	struct snd_card *card = pci_get_drvdata(pci);
1091 	struct azx *chip = card->private_data;
1092 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1093 	bool disabled;
1094 
1095 	wait_for_completion(&hda->probe_wait);
1096 	if (hda->init_failed)
1097 		return;
1098 
1099 	disabled = (state == VGA_SWITCHEROO_OFF);
1100 	if (chip->disabled == disabled)
1101 		return;
1102 
1103 	if (!hda->probe_continued) {
1104 		chip->disabled = disabled;
1105 		if (!disabled) {
1106 			dev_info(chip->card->dev,
1107 				 "Start delayed initialization\n");
1108 			if (azx_probe_continue(chip) < 0) {
1109 				dev_err(chip->card->dev, "initialization error\n");
1110 				hda->init_failed = true;
1111 			}
1112 		}
1113 	} else {
1114 		dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1115 			 disabled ? "Disabling" : "Enabling");
1116 		if (disabled) {
1117 			pm_runtime_put_sync_suspend(card->dev);
1118 			azx_suspend(card->dev);
1119 			/* when we get suspended by vga_switcheroo we end up in D3cold,
1120 			 * however we have no ACPI handle, so pci/acpi can't put us there,
1121 			 * put ourselves there */
1122 			pci->current_state = PCI_D3cold;
1123 			chip->disabled = true;
1124 			if (snd_hda_lock_devices(&chip->bus))
1125 				dev_warn(chip->card->dev,
1126 					 "Cannot lock devices!\n");
1127 		} else {
1128 			snd_hda_unlock_devices(&chip->bus);
1129 			pm_runtime_get_noresume(card->dev);
1130 			chip->disabled = false;
1131 			azx_resume(card->dev);
1132 		}
1133 	}
1134 }
1135 
1136 static bool azx_vs_can_switch(struct pci_dev *pci)
1137 {
1138 	struct snd_card *card = pci_get_drvdata(pci);
1139 	struct azx *chip = card->private_data;
1140 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1141 
1142 	wait_for_completion(&hda->probe_wait);
1143 	if (hda->init_failed)
1144 		return false;
1145 	if (chip->disabled || !hda->probe_continued)
1146 		return true;
1147 	if (snd_hda_lock_devices(&chip->bus))
1148 		return false;
1149 	snd_hda_unlock_devices(&chip->bus);
1150 	return true;
1151 }
1152 
1153 static void init_vga_switcheroo(struct azx *chip)
1154 {
1155 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1156 	struct pci_dev *p = get_bound_vga(chip->pci);
1157 	if (p) {
1158 		dev_info(chip->card->dev,
1159 			 "Handle vga_switcheroo audio client\n");
1160 		hda->use_vga_switcheroo = 1;
1161 		pci_dev_put(p);
1162 	}
1163 }
1164 
1165 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1166 	.set_gpu_state = azx_vs_set_state,
1167 	.can_switch = azx_vs_can_switch,
1168 };
1169 
1170 static int register_vga_switcheroo(struct azx *chip)
1171 {
1172 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1173 	int err;
1174 
1175 	if (!hda->use_vga_switcheroo)
1176 		return 0;
1177 	/* FIXME: currently only handling DIS controller
1178 	 * is there any machine with two switchable HDMI audio controllers?
1179 	 */
1180 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops,
1181 						   VGA_SWITCHEROO_DIS);
1182 	if (err < 0)
1183 		return err;
1184 	hda->vga_switcheroo_registered = 1;
1185 
1186 	/* register as an optimus hdmi audio power domain */
1187 	vga_switcheroo_init_domain_pm_optimus_hdmi_audio(chip->card->dev,
1188 							 &hda->hdmi_pm_domain);
1189 	return 0;
1190 }
1191 #else
1192 #define init_vga_switcheroo(chip)		/* NOP */
1193 #define register_vga_switcheroo(chip)		0
1194 #define check_hdmi_disabled(pci)	false
1195 #endif /* SUPPORT_VGA_SWITCHER */
1196 
1197 /*
1198  * destructor
1199  */
1200 static int azx_free(struct azx *chip)
1201 {
1202 	struct pci_dev *pci = chip->pci;
1203 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1204 	struct hdac_bus *bus = azx_bus(chip);
1205 
1206 	if (azx_has_pm_runtime(chip) && chip->running)
1207 		pm_runtime_get_noresume(&pci->dev);
1208 
1209 	azx_del_card_list(chip);
1210 
1211 	hda->init_failed = 1; /* to be sure */
1212 	complete_all(&hda->probe_wait);
1213 
1214 	if (use_vga_switcheroo(hda)) {
1215 		if (chip->disabled && hda->probe_continued)
1216 			snd_hda_unlock_devices(&chip->bus);
1217 		if (hda->vga_switcheroo_registered)
1218 			vga_switcheroo_unregister_client(chip->pci);
1219 	}
1220 
1221 	if (bus->chip_init) {
1222 		azx_clear_irq_pending(chip);
1223 		azx_stop_all_streams(chip);
1224 		azx_stop_chip(chip);
1225 	}
1226 
1227 	if (bus->irq >= 0)
1228 		free_irq(bus->irq, (void*)chip);
1229 	if (chip->msi)
1230 		pci_disable_msi(chip->pci);
1231 	iounmap(bus->remap_addr);
1232 
1233 	azx_free_stream_pages(chip);
1234 	azx_free_streams(chip);
1235 	snd_hdac_bus_exit(bus);
1236 
1237 	if (chip->region_requested)
1238 		pci_release_regions(chip->pci);
1239 
1240 	pci_disable_device(chip->pci);
1241 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1242 	release_firmware(chip->fw);
1243 #endif
1244 
1245 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
1246 		if (hda->need_i915_power)
1247 			snd_hdac_display_power(bus, false);
1248 		snd_hdac_i915_exit(bus);
1249 	}
1250 	kfree(hda);
1251 
1252 	return 0;
1253 }
1254 
1255 static int azx_dev_disconnect(struct snd_device *device)
1256 {
1257 	struct azx *chip = device->device_data;
1258 
1259 	chip->bus.shutdown = 1;
1260 	return 0;
1261 }
1262 
1263 static int azx_dev_free(struct snd_device *device)
1264 {
1265 	return azx_free(device->device_data);
1266 }
1267 
1268 #ifdef SUPPORT_VGA_SWITCHEROO
1269 /*
1270  * Check of disabled HDMI controller by vga_switcheroo
1271  */
1272 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1273 {
1274 	struct pci_dev *p;
1275 
1276 	/* check only discrete GPU */
1277 	switch (pci->vendor) {
1278 	case PCI_VENDOR_ID_ATI:
1279 	case PCI_VENDOR_ID_AMD:
1280 	case PCI_VENDOR_ID_NVIDIA:
1281 		if (pci->devfn == 1) {
1282 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1283 							pci->bus->number, 0);
1284 			if (p) {
1285 				if ((p->class >> 8) == PCI_CLASS_DISPLAY_VGA)
1286 					return p;
1287 				pci_dev_put(p);
1288 			}
1289 		}
1290 		break;
1291 	}
1292 	return NULL;
1293 }
1294 
1295 static bool check_hdmi_disabled(struct pci_dev *pci)
1296 {
1297 	bool vga_inactive = false;
1298 	struct pci_dev *p = get_bound_vga(pci);
1299 
1300 	if (p) {
1301 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1302 			vga_inactive = true;
1303 		pci_dev_put(p);
1304 	}
1305 	return vga_inactive;
1306 }
1307 #endif /* SUPPORT_VGA_SWITCHEROO */
1308 
1309 /*
1310  * white/black-listing for position_fix
1311  */
1312 static struct snd_pci_quirk position_fix_list[] = {
1313 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1314 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1315 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1316 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1317 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1318 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1319 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1320 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1321 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1322 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1323 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1324 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1325 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1326 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1327 	{}
1328 };
1329 
1330 static int check_position_fix(struct azx *chip, int fix)
1331 {
1332 	const struct snd_pci_quirk *q;
1333 
1334 	switch (fix) {
1335 	case POS_FIX_AUTO:
1336 	case POS_FIX_LPIB:
1337 	case POS_FIX_POSBUF:
1338 	case POS_FIX_VIACOMBO:
1339 	case POS_FIX_COMBO:
1340 		return fix;
1341 	}
1342 
1343 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1344 	if (q) {
1345 		dev_info(chip->card->dev,
1346 			 "position_fix set to %d for device %04x:%04x\n",
1347 			 q->value, q->subvendor, q->subdevice);
1348 		return q->value;
1349 	}
1350 
1351 	/* Check VIA/ATI HD Audio Controller exist */
1352 	if (chip->driver_type == AZX_DRIVER_VIA) {
1353 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1354 		return POS_FIX_VIACOMBO;
1355 	}
1356 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1357 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1358 		return POS_FIX_LPIB;
1359 	}
1360 	return POS_FIX_AUTO;
1361 }
1362 
1363 static void assign_position_fix(struct azx *chip, int fix)
1364 {
1365 	static azx_get_pos_callback_t callbacks[] = {
1366 		[POS_FIX_AUTO] = NULL,
1367 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1368 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1369 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1370 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1371 	};
1372 
1373 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1374 
1375 	/* combo mode uses LPIB only for playback */
1376 	if (fix == POS_FIX_COMBO)
1377 		chip->get_position[1] = NULL;
1378 
1379 	if (fix == POS_FIX_POSBUF &&
1380 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1381 		chip->get_delay[0] = chip->get_delay[1] =
1382 			azx_get_delay_from_lpib;
1383 	}
1384 
1385 }
1386 
1387 /*
1388  * black-lists for probe_mask
1389  */
1390 static struct snd_pci_quirk probe_mask_list[] = {
1391 	/* Thinkpad often breaks the controller communication when accessing
1392 	 * to the non-working (or non-existing) modem codec slot.
1393 	 */
1394 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1395 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1396 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1397 	/* broken BIOS */
1398 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1399 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1400 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1401 	/* forced codec slots */
1402 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1403 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1404 	/* WinFast VP200 H (Teradici) user reported broken communication */
1405 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1406 	{}
1407 };
1408 
1409 #define AZX_FORCE_CODEC_MASK	0x100
1410 
1411 static void check_probe_mask(struct azx *chip, int dev)
1412 {
1413 	const struct snd_pci_quirk *q;
1414 
1415 	chip->codec_probe_mask = probe_mask[dev];
1416 	if (chip->codec_probe_mask == -1) {
1417 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1418 		if (q) {
1419 			dev_info(chip->card->dev,
1420 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1421 				 q->value, q->subvendor, q->subdevice);
1422 			chip->codec_probe_mask = q->value;
1423 		}
1424 	}
1425 
1426 	/* check forced option */
1427 	if (chip->codec_probe_mask != -1 &&
1428 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1429 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1430 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1431 			 (int)azx_bus(chip)->codec_mask);
1432 	}
1433 }
1434 
1435 /*
1436  * white/black-list for enable_msi
1437  */
1438 static struct snd_pci_quirk msi_black_list[] = {
1439 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1440 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1441 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1442 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1443 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1444 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1445 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1446 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1447 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1448 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1449 	{}
1450 };
1451 
1452 static void check_msi(struct azx *chip)
1453 {
1454 	const struct snd_pci_quirk *q;
1455 
1456 	if (enable_msi >= 0) {
1457 		chip->msi = !!enable_msi;
1458 		return;
1459 	}
1460 	chip->msi = 1;	/* enable MSI as default */
1461 	q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
1462 	if (q) {
1463 		dev_info(chip->card->dev,
1464 			 "msi for device %04x:%04x set to %d\n",
1465 			 q->subvendor, q->subdevice, q->value);
1466 		chip->msi = q->value;
1467 		return;
1468 	}
1469 
1470 	/* NVidia chipsets seem to cause troubles with MSI */
1471 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1472 		dev_info(chip->card->dev, "Disabling MSI\n");
1473 		chip->msi = 0;
1474 	}
1475 }
1476 
1477 /* check the snoop mode availability */
1478 static void azx_check_snoop_available(struct azx *chip)
1479 {
1480 	int snoop = hda_snoop;
1481 
1482 	if (snoop >= 0) {
1483 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1484 			 snoop ? "snoop" : "non-snoop");
1485 		chip->snoop = snoop;
1486 		return;
1487 	}
1488 
1489 	snoop = true;
1490 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1491 	    chip->driver_type == AZX_DRIVER_VIA) {
1492 		/* force to non-snoop mode for a new VIA controller
1493 		 * when BIOS is set
1494 		 */
1495 		u8 val;
1496 		pci_read_config_byte(chip->pci, 0x42, &val);
1497 		if (!(val & 0x80) && chip->pci->revision == 0x30)
1498 			snoop = false;
1499 	}
1500 
1501 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1502 		snoop = false;
1503 
1504 	chip->snoop = snoop;
1505 	if (!snoop)
1506 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1507 }
1508 
1509 static void azx_probe_work(struct work_struct *work)
1510 {
1511 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
1512 	azx_probe_continue(&hda->chip);
1513 }
1514 
1515 static int default_bdl_pos_adj(struct azx *chip)
1516 {
1517 	/* some exceptions: Atoms seem problematic with value 1 */
1518 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1519 		switch (chip->pci->device) {
1520 		case 0x0f04: /* Baytrail */
1521 		case 0x2284: /* Braswell */
1522 			return 32;
1523 		}
1524 	}
1525 
1526 	switch (chip->driver_type) {
1527 	case AZX_DRIVER_ICH:
1528 	case AZX_DRIVER_PCH:
1529 		return 1;
1530 	default:
1531 		return 32;
1532 	}
1533 }
1534 
1535 /*
1536  * constructor
1537  */
1538 static const struct hdac_io_ops pci_hda_io_ops;
1539 static const struct hda_controller_ops pci_hda_ops;
1540 
1541 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1542 		      int dev, unsigned int driver_caps,
1543 		      struct azx **rchip)
1544 {
1545 	static struct snd_device_ops ops = {
1546 		.dev_disconnect = azx_dev_disconnect,
1547 		.dev_free = azx_dev_free,
1548 	};
1549 	struct hda_intel *hda;
1550 	struct azx *chip;
1551 	int err;
1552 
1553 	*rchip = NULL;
1554 
1555 	err = pci_enable_device(pci);
1556 	if (err < 0)
1557 		return err;
1558 
1559 	hda = kzalloc(sizeof(*hda), GFP_KERNEL);
1560 	if (!hda) {
1561 		pci_disable_device(pci);
1562 		return -ENOMEM;
1563 	}
1564 
1565 	chip = &hda->chip;
1566 	mutex_init(&chip->open_mutex);
1567 	chip->card = card;
1568 	chip->pci = pci;
1569 	chip->ops = &pci_hda_ops;
1570 	chip->driver_caps = driver_caps;
1571 	chip->driver_type = driver_caps & 0xff;
1572 	check_msi(chip);
1573 	chip->dev_index = dev;
1574 	chip->jackpoll_ms = jackpoll_ms;
1575 	INIT_LIST_HEAD(&chip->pcm_list);
1576 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1577 	INIT_LIST_HEAD(&hda->list);
1578 	init_vga_switcheroo(chip);
1579 	init_completion(&hda->probe_wait);
1580 
1581 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1582 
1583 	check_probe_mask(chip, dev);
1584 
1585 	chip->single_cmd = single_cmd;
1586 	azx_check_snoop_available(chip);
1587 
1588 	if (bdl_pos_adj[dev] < 0)
1589 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1590 	else
1591 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1592 
1593 	err = azx_bus_init(chip, model[dev], &pci_hda_io_ops);
1594 	if (err < 0) {
1595 		kfree(hda);
1596 		pci_disable_device(pci);
1597 		return err;
1598 	}
1599 
1600 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1601 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1602 		chip->bus.needs_damn_long_delay = 1;
1603 	}
1604 
1605 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1606 	if (err < 0) {
1607 		dev_err(card->dev, "Error creating device [card]!\n");
1608 		azx_free(chip);
1609 		return err;
1610 	}
1611 
1612 	/* continue probing in work context as may trigger request module */
1613 	INIT_WORK(&hda->probe_work, azx_probe_work);
1614 
1615 	*rchip = chip;
1616 
1617 	return 0;
1618 }
1619 
1620 static int azx_first_init(struct azx *chip)
1621 {
1622 	int dev = chip->dev_index;
1623 	struct pci_dev *pci = chip->pci;
1624 	struct snd_card *card = chip->card;
1625 	struct hdac_bus *bus = azx_bus(chip);
1626 	int err;
1627 	unsigned short gcap;
1628 	unsigned int dma_bits = 64;
1629 
1630 #if BITS_PER_LONG != 64
1631 	/* Fix up base address on ULI M5461 */
1632 	if (chip->driver_type == AZX_DRIVER_ULI) {
1633 		u16 tmp3;
1634 		pci_read_config_word(pci, 0x40, &tmp3);
1635 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1636 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1637 	}
1638 #endif
1639 
1640 	err = pci_request_regions(pci, "ICH HD audio");
1641 	if (err < 0)
1642 		return err;
1643 	chip->region_requested = 1;
1644 
1645 	bus->addr = pci_resource_start(pci, 0);
1646 	bus->remap_addr = pci_ioremap_bar(pci, 0);
1647 	if (bus->remap_addr == NULL) {
1648 		dev_err(card->dev, "ioremap error\n");
1649 		return -ENXIO;
1650 	}
1651 
1652 	if (chip->msi) {
1653 		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1654 			dev_dbg(card->dev, "Disabling 64bit MSI\n");
1655 			pci->no_64bit_msi = true;
1656 		}
1657 		if (pci_enable_msi(pci) < 0)
1658 			chip->msi = 0;
1659 	}
1660 
1661 	if (azx_acquire_irq(chip, 0) < 0)
1662 		return -EBUSY;
1663 
1664 	pci_set_master(pci);
1665 	synchronize_irq(bus->irq);
1666 
1667 	gcap = azx_readw(chip, GCAP);
1668 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1669 
1670 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1671 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1672 		dma_bits = 40;
1673 
1674 	/* disable SB600 64bit support for safety */
1675 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1676 		struct pci_dev *p_smbus;
1677 		dma_bits = 40;
1678 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1679 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1680 					 NULL);
1681 		if (p_smbus) {
1682 			if (p_smbus->revision < 0x30)
1683 				gcap &= ~AZX_GCAP_64OK;
1684 			pci_dev_put(p_smbus);
1685 		}
1686 	}
1687 
1688 	/* disable 64bit DMA address on some devices */
1689 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1690 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1691 		gcap &= ~AZX_GCAP_64OK;
1692 	}
1693 
1694 	/* disable buffer size rounding to 128-byte multiples if supported */
1695 	if (align_buffer_size >= 0)
1696 		chip->align_buffer_size = !!align_buffer_size;
1697 	else {
1698 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1699 			chip->align_buffer_size = 0;
1700 		else
1701 			chip->align_buffer_size = 1;
1702 	}
1703 
1704 	/* allow 64bit DMA address if supported by H/W */
1705 	if (!(gcap & AZX_GCAP_64OK))
1706 		dma_bits = 32;
1707 	if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
1708 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(dma_bits));
1709 	} else {
1710 		dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
1711 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
1712 	}
1713 
1714 	/* read number of streams from GCAP register instead of using
1715 	 * hardcoded value
1716 	 */
1717 	chip->capture_streams = (gcap >> 8) & 0x0f;
1718 	chip->playback_streams = (gcap >> 12) & 0x0f;
1719 	if (!chip->playback_streams && !chip->capture_streams) {
1720 		/* gcap didn't give any info, switching to old method */
1721 
1722 		switch (chip->driver_type) {
1723 		case AZX_DRIVER_ULI:
1724 			chip->playback_streams = ULI_NUM_PLAYBACK;
1725 			chip->capture_streams = ULI_NUM_CAPTURE;
1726 			break;
1727 		case AZX_DRIVER_ATIHDMI:
1728 		case AZX_DRIVER_ATIHDMI_NS:
1729 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1730 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1731 			break;
1732 		case AZX_DRIVER_GENERIC:
1733 		default:
1734 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1735 			chip->capture_streams = ICH6_NUM_CAPTURE;
1736 			break;
1737 		}
1738 	}
1739 	chip->capture_index_offset = 0;
1740 	chip->playback_index_offset = chip->capture_streams;
1741 	chip->num_streams = chip->playback_streams + chip->capture_streams;
1742 
1743 	/* initialize streams */
1744 	err = azx_init_streams(chip);
1745 	if (err < 0)
1746 		return err;
1747 
1748 	err = azx_alloc_stream_pages(chip);
1749 	if (err < 0)
1750 		return err;
1751 
1752 	/* initialize chip */
1753 	azx_init_pci(chip);
1754 
1755 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
1756 		snd_hdac_i915_set_bclk(bus);
1757 
1758 	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
1759 
1760 	/* codec detection */
1761 	if (!azx_bus(chip)->codec_mask) {
1762 		dev_err(card->dev, "no codecs found!\n");
1763 		return -ENODEV;
1764 	}
1765 
1766 	strcpy(card->driver, "HDA-Intel");
1767 	strlcpy(card->shortname, driver_short_names[chip->driver_type],
1768 		sizeof(card->shortname));
1769 	snprintf(card->longname, sizeof(card->longname),
1770 		 "%s at 0x%lx irq %i",
1771 		 card->shortname, bus->addr, bus->irq);
1772 
1773 	return 0;
1774 }
1775 
1776 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1777 /* callback from request_firmware_nowait() */
1778 static void azx_firmware_cb(const struct firmware *fw, void *context)
1779 {
1780 	struct snd_card *card = context;
1781 	struct azx *chip = card->private_data;
1782 	struct pci_dev *pci = chip->pci;
1783 
1784 	if (!fw) {
1785 		dev_err(card->dev, "Cannot load firmware, aborting\n");
1786 		goto error;
1787 	}
1788 
1789 	chip->fw = fw;
1790 	if (!chip->disabled) {
1791 		/* continue probing */
1792 		if (azx_probe_continue(chip))
1793 			goto error;
1794 	}
1795 	return; /* OK */
1796 
1797  error:
1798 	snd_card_free(card);
1799 	pci_set_drvdata(pci, NULL);
1800 }
1801 #endif
1802 
1803 /*
1804  * HDA controller ops.
1805  */
1806 
1807 /* PCI register access. */
1808 static void pci_azx_writel(u32 value, u32 __iomem *addr)
1809 {
1810 	writel(value, addr);
1811 }
1812 
1813 static u32 pci_azx_readl(u32 __iomem *addr)
1814 {
1815 	return readl(addr);
1816 }
1817 
1818 static void pci_azx_writew(u16 value, u16 __iomem *addr)
1819 {
1820 	writew(value, addr);
1821 }
1822 
1823 static u16 pci_azx_readw(u16 __iomem *addr)
1824 {
1825 	return readw(addr);
1826 }
1827 
1828 static void pci_azx_writeb(u8 value, u8 __iomem *addr)
1829 {
1830 	writeb(value, addr);
1831 }
1832 
1833 static u8 pci_azx_readb(u8 __iomem *addr)
1834 {
1835 	return readb(addr);
1836 }
1837 
1838 static int disable_msi_reset_irq(struct azx *chip)
1839 {
1840 	struct hdac_bus *bus = azx_bus(chip);
1841 	int err;
1842 
1843 	free_irq(bus->irq, chip);
1844 	bus->irq = -1;
1845 	pci_disable_msi(chip->pci);
1846 	chip->msi = 0;
1847 	err = azx_acquire_irq(chip, 1);
1848 	if (err < 0)
1849 		return err;
1850 
1851 	return 0;
1852 }
1853 
1854 /* DMA page allocation helpers.  */
1855 static int dma_alloc_pages(struct hdac_bus *bus,
1856 			   int type,
1857 			   size_t size,
1858 			   struct snd_dma_buffer *buf)
1859 {
1860 	struct azx *chip = bus_to_azx(bus);
1861 	int err;
1862 
1863 	err = snd_dma_alloc_pages(type,
1864 				  bus->dev,
1865 				  size, buf);
1866 	if (err < 0)
1867 		return err;
1868 	mark_pages_wc(chip, buf, true);
1869 	return 0;
1870 }
1871 
1872 static void dma_free_pages(struct hdac_bus *bus, struct snd_dma_buffer *buf)
1873 {
1874 	struct azx *chip = bus_to_azx(bus);
1875 
1876 	mark_pages_wc(chip, buf, false);
1877 	snd_dma_free_pages(buf);
1878 }
1879 
1880 static int substream_alloc_pages(struct azx *chip,
1881 				 struct snd_pcm_substream *substream,
1882 				 size_t size)
1883 {
1884 	struct azx_dev *azx_dev = get_azx_dev(substream);
1885 	int ret;
1886 
1887 	mark_runtime_wc(chip, azx_dev, substream, false);
1888 	ret = snd_pcm_lib_malloc_pages(substream, size);
1889 	if (ret < 0)
1890 		return ret;
1891 	mark_runtime_wc(chip, azx_dev, substream, true);
1892 	return 0;
1893 }
1894 
1895 static int substream_free_pages(struct azx *chip,
1896 				struct snd_pcm_substream *substream)
1897 {
1898 	struct azx_dev *azx_dev = get_azx_dev(substream);
1899 	mark_runtime_wc(chip, azx_dev, substream, false);
1900 	return snd_pcm_lib_free_pages(substream);
1901 }
1902 
1903 static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
1904 			     struct vm_area_struct *area)
1905 {
1906 #ifdef CONFIG_X86
1907 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1908 	struct azx *chip = apcm->chip;
1909 	if (!azx_snoop(chip) && chip->driver_type != AZX_DRIVER_CMEDIA)
1910 		area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
1911 #endif
1912 }
1913 
1914 static const struct hdac_io_ops pci_hda_io_ops = {
1915 	.reg_writel = pci_azx_writel,
1916 	.reg_readl = pci_azx_readl,
1917 	.reg_writew = pci_azx_writew,
1918 	.reg_readw = pci_azx_readw,
1919 	.reg_writeb = pci_azx_writeb,
1920 	.reg_readb = pci_azx_readb,
1921 	.dma_alloc_pages = dma_alloc_pages,
1922 	.dma_free_pages = dma_free_pages,
1923 };
1924 
1925 static const struct hda_controller_ops pci_hda_ops = {
1926 	.disable_msi_reset_irq = disable_msi_reset_irq,
1927 	.substream_alloc_pages = substream_alloc_pages,
1928 	.substream_free_pages = substream_free_pages,
1929 	.pcm_mmap_prepare = pcm_mmap_prepare,
1930 	.position_check = azx_position_check,
1931 	.link_power = azx_intel_link_power,
1932 };
1933 
1934 static int azx_probe(struct pci_dev *pci,
1935 		     const struct pci_device_id *pci_id)
1936 {
1937 	static int dev;
1938 	struct snd_card *card;
1939 	struct hda_intel *hda;
1940 	struct azx *chip;
1941 	bool schedule_probe;
1942 	int err;
1943 
1944 	if (dev >= SNDRV_CARDS)
1945 		return -ENODEV;
1946 	if (!enable[dev]) {
1947 		dev++;
1948 		return -ENOENT;
1949 	}
1950 
1951 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1952 			   0, &card);
1953 	if (err < 0) {
1954 		dev_err(&pci->dev, "Error creating card!\n");
1955 		return err;
1956 	}
1957 
1958 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
1959 	if (err < 0)
1960 		goto out_free;
1961 	card->private_data = chip;
1962 	hda = container_of(chip, struct hda_intel, chip);
1963 
1964 	pci_set_drvdata(pci, card);
1965 
1966 	err = register_vga_switcheroo(chip);
1967 	if (err < 0) {
1968 		dev_err(card->dev, "Error registering vga_switcheroo client\n");
1969 		goto out_free;
1970 	}
1971 
1972 	if (check_hdmi_disabled(pci)) {
1973 		dev_info(card->dev, "VGA controller is disabled\n");
1974 		dev_info(card->dev, "Delaying initialization\n");
1975 		chip->disabled = true;
1976 	}
1977 
1978 	schedule_probe = !chip->disabled;
1979 
1980 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1981 	if (patch[dev] && *patch[dev]) {
1982 		dev_info(card->dev, "Applying patch firmware '%s'\n",
1983 			 patch[dev]);
1984 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
1985 					      &pci->dev, GFP_KERNEL, card,
1986 					      azx_firmware_cb);
1987 		if (err < 0)
1988 			goto out_free;
1989 		schedule_probe = false; /* continued in azx_firmware_cb() */
1990 	}
1991 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
1992 
1993 #ifndef CONFIG_SND_HDA_I915
1994 	if (CONTROLLER_IN_GPU(pci))
1995 		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
1996 #endif
1997 
1998 	if (schedule_probe)
1999 		schedule_work(&hda->probe_work);
2000 
2001 	dev++;
2002 	if (chip->disabled)
2003 		complete_all(&hda->probe_wait);
2004 	return 0;
2005 
2006 out_free:
2007 	snd_card_free(card);
2008 	return err;
2009 }
2010 
2011 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2012 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2013 	[AZX_DRIVER_NVIDIA] = 8,
2014 	[AZX_DRIVER_TERA] = 1,
2015 };
2016 
2017 static int azx_probe_continue(struct azx *chip)
2018 {
2019 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2020 	struct hdac_bus *bus = azx_bus(chip);
2021 	struct pci_dev *pci = chip->pci;
2022 	int dev = chip->dev_index;
2023 	int err;
2024 
2025 	hda->probe_continued = 1;
2026 
2027 	/* Request display power well for the HDA controller or codec. For
2028 	 * Haswell/Broadwell, both the display HDA controller and codec need
2029 	 * this power. For other platforms, like Baytrail/Braswell, only the
2030 	 * display codec needs the power and it can be released after probe.
2031 	 */
2032 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
2033 		/* HSW/BDW controllers need this power */
2034 		if (CONTROLLER_IN_GPU(pci))
2035 			hda->need_i915_power = 1;
2036 
2037 		err = snd_hdac_i915_init(bus);
2038 		if (err < 0) {
2039 			/* if the controller is bound only with HDMI/DP
2040 			 * (for HSW and BDW), we need to abort the probe;
2041 			 * for other chips, still continue probing as other
2042 			 * codecs can be on the same link.
2043 			 */
2044 			if (CONTROLLER_IN_GPU(pci)) {
2045 				dev_err(chip->card->dev,
2046 					"HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2047 				goto out_free;
2048 			} else
2049 				goto skip_i915;
2050 		}
2051 
2052 		err = snd_hdac_display_power(bus, true);
2053 		if (err < 0) {
2054 			dev_err(chip->card->dev,
2055 				"Cannot turn on display power on i915\n");
2056 			goto i915_power_fail;
2057 		}
2058 	}
2059 
2060  skip_i915:
2061 	err = azx_first_init(chip);
2062 	if (err < 0)
2063 		goto out_free;
2064 
2065 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2066 	chip->beep_mode = beep_mode[dev];
2067 #endif
2068 
2069 	/* create codec instances */
2070 	err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2071 	if (err < 0)
2072 		goto out_free;
2073 
2074 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2075 	if (chip->fw) {
2076 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2077 					 chip->fw->data);
2078 		if (err < 0)
2079 			goto out_free;
2080 #ifndef CONFIG_PM
2081 		release_firmware(chip->fw); /* no longer needed */
2082 		chip->fw = NULL;
2083 #endif
2084 	}
2085 #endif
2086 	if ((probe_only[dev] & 1) == 0) {
2087 		err = azx_codec_configure(chip);
2088 		if (err < 0)
2089 			goto out_free;
2090 	}
2091 
2092 	err = snd_card_register(chip->card);
2093 	if (err < 0)
2094 		goto out_free;
2095 
2096 	chip->running = 1;
2097 	azx_add_card_list(chip);
2098 	snd_hda_set_power_save(&chip->bus, power_save * 1000);
2099 	if (azx_has_pm_runtime(chip) || hda->use_vga_switcheroo)
2100 		pm_runtime_put_autosuspend(&pci->dev);
2101 
2102 out_free:
2103 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
2104 		&& !hda->need_i915_power)
2105 		snd_hdac_display_power(bus, false);
2106 
2107 i915_power_fail:
2108 	if (err < 0)
2109 		hda->init_failed = 1;
2110 	complete_all(&hda->probe_wait);
2111 	return err;
2112 }
2113 
2114 static void azx_remove(struct pci_dev *pci)
2115 {
2116 	struct snd_card *card = pci_get_drvdata(pci);
2117 	struct azx *chip;
2118 	struct hda_intel *hda;
2119 
2120 	if (card) {
2121 		/* cancel the pending probing work */
2122 		chip = card->private_data;
2123 		hda = container_of(chip, struct hda_intel, chip);
2124 		cancel_work_sync(&hda->probe_work);
2125 
2126 		snd_card_free(card);
2127 	}
2128 }
2129 
2130 static void azx_shutdown(struct pci_dev *pci)
2131 {
2132 	struct snd_card *card = pci_get_drvdata(pci);
2133 	struct azx *chip;
2134 
2135 	if (!card)
2136 		return;
2137 	chip = card->private_data;
2138 	if (chip && chip->running)
2139 		azx_stop_chip(chip);
2140 }
2141 
2142 /* PCI IDs */
2143 static const struct pci_device_id azx_ids[] = {
2144 	/* CPT */
2145 	{ PCI_DEVICE(0x8086, 0x1c20),
2146 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2147 	/* PBG */
2148 	{ PCI_DEVICE(0x8086, 0x1d20),
2149 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2150 	/* Panther Point */
2151 	{ PCI_DEVICE(0x8086, 0x1e20),
2152 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2153 	/* Lynx Point */
2154 	{ PCI_DEVICE(0x8086, 0x8c20),
2155 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2156 	/* 9 Series */
2157 	{ PCI_DEVICE(0x8086, 0x8ca0),
2158 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2159 	/* Wellsburg */
2160 	{ PCI_DEVICE(0x8086, 0x8d20),
2161 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2162 	{ PCI_DEVICE(0x8086, 0x8d21),
2163 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2164 	/* Lewisburg */
2165 	{ PCI_DEVICE(0x8086, 0xa1f0),
2166 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2167 	{ PCI_DEVICE(0x8086, 0xa270),
2168 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2169 	/* Lynx Point-LP */
2170 	{ PCI_DEVICE(0x8086, 0x9c20),
2171 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2172 	/* Lynx Point-LP */
2173 	{ PCI_DEVICE(0x8086, 0x9c21),
2174 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2175 	/* Wildcat Point-LP */
2176 	{ PCI_DEVICE(0x8086, 0x9ca0),
2177 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2178 	/* Sunrise Point */
2179 	{ PCI_DEVICE(0x8086, 0xa170),
2180 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2181 	/* Sunrise Point-LP */
2182 	{ PCI_DEVICE(0x8086, 0x9d70),
2183 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2184 	/* Broxton-P(Apollolake) */
2185 	{ PCI_DEVICE(0x8086, 0x5a98),
2186 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BROXTON },
2187 	/* Broxton-T */
2188 	{ PCI_DEVICE(0x8086, 0x1a98),
2189 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BROXTON },
2190 	/* Haswell */
2191 	{ PCI_DEVICE(0x8086, 0x0a0c),
2192 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2193 	{ PCI_DEVICE(0x8086, 0x0c0c),
2194 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2195 	{ PCI_DEVICE(0x8086, 0x0d0c),
2196 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2197 	/* Broadwell */
2198 	{ PCI_DEVICE(0x8086, 0x160c),
2199 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2200 	/* 5 Series/3400 */
2201 	{ PCI_DEVICE(0x8086, 0x3b56),
2202 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2203 	/* Poulsbo */
2204 	{ PCI_DEVICE(0x8086, 0x811b),
2205 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2206 	/* Oaktrail */
2207 	{ PCI_DEVICE(0x8086, 0x080a),
2208 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2209 	/* BayTrail */
2210 	{ PCI_DEVICE(0x8086, 0x0f04),
2211 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2212 	/* Braswell */
2213 	{ PCI_DEVICE(0x8086, 0x2284),
2214 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2215 	/* ICH6 */
2216 	{ PCI_DEVICE(0x8086, 0x2668),
2217 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2218 	/* ICH7 */
2219 	{ PCI_DEVICE(0x8086, 0x27d8),
2220 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2221 	/* ESB2 */
2222 	{ PCI_DEVICE(0x8086, 0x269a),
2223 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2224 	/* ICH8 */
2225 	{ PCI_DEVICE(0x8086, 0x284b),
2226 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2227 	/* ICH9 */
2228 	{ PCI_DEVICE(0x8086, 0x293e),
2229 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2230 	/* ICH9 */
2231 	{ PCI_DEVICE(0x8086, 0x293f),
2232 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2233 	/* ICH10 */
2234 	{ PCI_DEVICE(0x8086, 0x3a3e),
2235 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2236 	/* ICH10 */
2237 	{ PCI_DEVICE(0x8086, 0x3a6e),
2238 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2239 	/* Generic Intel */
2240 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2241 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2242 	  .class_mask = 0xffffff,
2243 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2244 	/* ATI SB 450/600/700/800/900 */
2245 	{ PCI_DEVICE(0x1002, 0x437b),
2246 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2247 	{ PCI_DEVICE(0x1002, 0x4383),
2248 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2249 	/* AMD Hudson */
2250 	{ PCI_DEVICE(0x1022, 0x780d),
2251 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2252 	/* ATI HDMI */
2253 	{ PCI_DEVICE(0x1002, 0x1308),
2254 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2255 	{ PCI_DEVICE(0x1002, 0x157a),
2256 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2257 	{ PCI_DEVICE(0x1002, 0x793b),
2258 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2259 	{ PCI_DEVICE(0x1002, 0x7919),
2260 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2261 	{ PCI_DEVICE(0x1002, 0x960f),
2262 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2263 	{ PCI_DEVICE(0x1002, 0x970f),
2264 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2265 	{ PCI_DEVICE(0x1002, 0x9840),
2266 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2267 	{ PCI_DEVICE(0x1002, 0xaa00),
2268 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2269 	{ PCI_DEVICE(0x1002, 0xaa08),
2270 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2271 	{ PCI_DEVICE(0x1002, 0xaa10),
2272 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2273 	{ PCI_DEVICE(0x1002, 0xaa18),
2274 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2275 	{ PCI_DEVICE(0x1002, 0xaa20),
2276 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2277 	{ PCI_DEVICE(0x1002, 0xaa28),
2278 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2279 	{ PCI_DEVICE(0x1002, 0xaa30),
2280 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2281 	{ PCI_DEVICE(0x1002, 0xaa38),
2282 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2283 	{ PCI_DEVICE(0x1002, 0xaa40),
2284 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2285 	{ PCI_DEVICE(0x1002, 0xaa48),
2286 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2287 	{ PCI_DEVICE(0x1002, 0xaa50),
2288 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2289 	{ PCI_DEVICE(0x1002, 0xaa58),
2290 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2291 	{ PCI_DEVICE(0x1002, 0xaa60),
2292 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2293 	{ PCI_DEVICE(0x1002, 0xaa68),
2294 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2295 	{ PCI_DEVICE(0x1002, 0xaa80),
2296 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2297 	{ PCI_DEVICE(0x1002, 0xaa88),
2298 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2299 	{ PCI_DEVICE(0x1002, 0xaa90),
2300 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2301 	{ PCI_DEVICE(0x1002, 0xaa98),
2302 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2303 	{ PCI_DEVICE(0x1002, 0x9902),
2304 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2305 	{ PCI_DEVICE(0x1002, 0xaaa0),
2306 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2307 	{ PCI_DEVICE(0x1002, 0xaaa8),
2308 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2309 	{ PCI_DEVICE(0x1002, 0xaab0),
2310 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2311 	{ PCI_DEVICE(0x1002, 0xaac0),
2312 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2313 	{ PCI_DEVICE(0x1002, 0xaac8),
2314 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2315 	{ PCI_DEVICE(0x1002, 0xaad8),
2316 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2317 	{ PCI_DEVICE(0x1002, 0xaae8),
2318 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2319 	{ PCI_DEVICE(0x1002, 0xaae0),
2320 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2321 	{ PCI_DEVICE(0x1002, 0xaaf0),
2322 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2323 	/* VIA VT8251/VT8237A */
2324 	{ PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2325 	/* VIA GFX VT7122/VX900 */
2326 	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2327 	/* VIA GFX VT6122/VX11 */
2328 	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2329 	/* SIS966 */
2330 	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2331 	/* ULI M5461 */
2332 	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2333 	/* NVIDIA MCP */
2334 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2335 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2336 	  .class_mask = 0xffffff,
2337 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2338 	/* Teradici */
2339 	{ PCI_DEVICE(0x6549, 0x1200),
2340 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2341 	{ PCI_DEVICE(0x6549, 0x2200),
2342 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2343 	/* Creative X-Fi (CA0110-IBG) */
2344 	/* CTHDA chips */
2345 	{ PCI_DEVICE(0x1102, 0x0010),
2346 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2347 	{ PCI_DEVICE(0x1102, 0x0012),
2348 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2349 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2350 	/* the following entry conflicts with snd-ctxfi driver,
2351 	 * as ctxfi driver mutates from HD-audio to native mode with
2352 	 * a special command sequence.
2353 	 */
2354 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2355 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2356 	  .class_mask = 0xffffff,
2357 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2358 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2359 #else
2360 	/* this entry seems still valid -- i.e. without emu20kx chip */
2361 	{ PCI_DEVICE(0x1102, 0x0009),
2362 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2363 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2364 #endif
2365 	/* CM8888 */
2366 	{ PCI_DEVICE(0x13f6, 0x5011),
2367 	  .driver_data = AZX_DRIVER_CMEDIA |
2368 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2369 	/* Vortex86MX */
2370 	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2371 	/* VMware HDAudio */
2372 	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2373 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2374 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2375 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2376 	  .class_mask = 0xffffff,
2377 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2378 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2379 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2380 	  .class_mask = 0xffffff,
2381 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2382 	{ 0, }
2383 };
2384 MODULE_DEVICE_TABLE(pci, azx_ids);
2385 
2386 /* pci_driver definition */
2387 static struct pci_driver azx_driver = {
2388 	.name = KBUILD_MODNAME,
2389 	.id_table = azx_ids,
2390 	.probe = azx_probe,
2391 	.remove = azx_remove,
2392 	.shutdown = azx_shutdown,
2393 	.driver = {
2394 		.pm = AZX_PM_OPS,
2395 	},
2396 };
2397 
2398 module_pci_driver(azx_driver);
2399