kernel/sound/pci/hda/hda_intel.c

   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_NOPM \
 290         (AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
 291          AZX_DCAPS_REVERSE_ASSIGN | AZX_DCAPS_SNOOP_TYPE(SCH))
 292
 293 #define AZX_DCAPS_INTEL_PCH \
 294         (AZX_DCAPS_INTEL_PCH_NOPM | AZX_DCAPS_PM_RUNTIME)
 295
 296 #define AZX_DCAPS_INTEL_HASWELL \
 297         (/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
 298          AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_POWERWELL |\
 299          AZX_DCAPS_SNOOP_TYPE(SCH))
 300
 301 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
 302 #define AZX_DCAPS_INTEL_BROADWELL \
 303         (/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
 304          AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_POWERWELL |\
 305          AZX_DCAPS_SNOOP_TYPE(SCH))
 306
 307 #define AZX_DCAPS_INTEL_BAYTRAIL \
 308         (AZX_DCAPS_INTEL_PCH_NOPM | AZX_DCAPS_I915_POWERWELL)
 309
 310 #define AZX_DCAPS_INTEL_BRASWELL \
 311         (AZX_DCAPS_INTEL_PCH | AZX_DCAPS_I915_POWERWELL)
 312
 313 #define AZX_DCAPS_INTEL_SKYLAKE \
 314         (AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG |\
 315          AZX_DCAPS_I915_POWERWELL)
 316
 317 #define AZX_DCAPS_INTEL_BROXTON \
 318         (AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG |\
 319          AZX_DCAPS_I915_POWERWELL)
 320
 321 /* quirks for ATI SB / AMD Hudson */
 322 #define AZX_DCAPS_PRESET_ATI_SB \
 323         (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB |\
 324          AZX_DCAPS_SNOOP_TYPE(ATI))
 325
 326 /* quirks for ATI/AMD HDMI */
 327 #define AZX_DCAPS_PRESET_ATI_HDMI \
 328         (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB|\
 329          AZX_DCAPS_NO_MSI64)
 330
 331 /* quirks for ATI HDMI with snoop off */
 332 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
 333         (AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
 334
 335 /* quirks for Nvidia */
 336 #define AZX_DCAPS_PRESET_NVIDIA \
 337         (AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
 338          AZX_DCAPS_SNOOP_TYPE(NVIDIA))
 339
 340 #define AZX_DCAPS_PRESET_CTHDA \
 341         (AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
 342          AZX_DCAPS_NO_64BIT |\
 343          AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
 344
 345 /*
 346  * vga_switcheroo support
 347  */
 348 #ifdef SUPPORT_VGA_SWITCHEROO
 349 #define use_vga_switcheroo(chip)        ((chip)->use_vga_switcheroo)
 350 #else
 351 #define use_vga_switcheroo(chip)        0
 352 #endif
 353
 354 #define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \
 355                                         ((pci)->device == 0x0c0c) || \
 356                                         ((pci)->device == 0x0d0c) || \
 357                                         ((pci)->device == 0x160c))
 358
 359 #define IS_SKL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa170)
 360 #define IS_SKL_LP(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x9d70)
 361 #define IS_KBL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa171)
 362 #define IS_KBL_LP(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x9d71)
 363 #define IS_KBL_H(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa2f0)
 364 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
 365 #define IS_SKL_PLUS(pci) (IS_SKL(pci) || IS_SKL_LP(pci) || IS_BXT(pci)) || \
 366                         IS_KBL(pci) || IS_KBL_LP(pci) || IS_KBL_H(pci)
 367
 368 static char *driver_short_names[] = {
 369         [AZX_DRIVER_ICH] = "HDA Intel",
 370         [AZX_DRIVER_PCH] = "HDA Intel PCH",
 371         [AZX_DRIVER_SCH] = "HDA Intel MID",
 372         [AZX_DRIVER_HDMI] = "HDA Intel HDMI",
 373         [AZX_DRIVER_ATI] = "HDA ATI SB",
 374         [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
 375         [AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
 376         [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
 377         [AZX_DRIVER_SIS] = "HDA SIS966",
 378         [AZX_DRIVER_ULI] = "HDA ULI M5461",
 379         [AZX_DRIVER_NVIDIA] = "HDA NVidia",
 380         [AZX_DRIVER_TERA] = "HDA Teradici",
 381         [AZX_DRIVER_CTX] = "HDA Creative",
 382         [AZX_DRIVER_CTHDA] = "HDA Creative",
 383         [AZX_DRIVER_CMEDIA] = "HDA C-Media",
 384         [AZX_DRIVER_GENERIC] = "HD-Audio Generic",
 385 };
 386
 387 #ifdef CONFIG_X86
 388 static void __mark_pages_wc(struct azx *chip, struct snd_dma_buffer *dmab, bool on)
 389 {
 390         int pages;
 391
 392         if (azx_snoop(chip))
 393                 return;
 394         if (!dmab || !dmab->area || !dmab->bytes)
 395                 return;
 396
 397 #ifdef CONFIG_SND_DMA_SGBUF
 398         if (dmab->dev.type == SNDRV_DMA_TYPE_DEV_SG) {
 399                 struct snd_sg_buf *sgbuf = dmab->private_data;
 400                 if (chip->driver_type == AZX_DRIVER_CMEDIA)
 401                         return; /* deal with only CORB/RIRB buffers */
 402                 if (on)
 403                         set_pages_array_wc(sgbuf->page_table, sgbuf->pages);
 404                 else
 405                         set_pages_array_wb(sgbuf->page_table, sgbuf->pages);
 406                 return;
 407         }
 408 #endif
 409
 410         pages = (dmab->bytes + PAGE_SIZE - 1) >> PAGE_SHIFT;
 411         if (on)
 412                 set_memory_wc((unsigned long)dmab->area, pages);
 413         else
 414                 set_memory_wb((unsigned long)dmab->area, pages);
 415 }
 416
 417 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
 418                                  bool on)
 419 {
 420         __mark_pages_wc(chip, buf, on);
 421 }
 422 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
 423                                    struct snd_pcm_substream *substream, bool on)
 424 {
 425         if (azx_dev->wc_marked != on) {
 426                 __mark_pages_wc(chip, snd_pcm_get_dma_buf(substream), on);
 427                 azx_dev->wc_marked = on;
 428         }
 429 }
 430 #else
 431 /* NOP for other archs */
 432 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
 433                                  bool on)
 434 {
 435 }
 436 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
 437                                    struct snd_pcm_substream *substream, bool on)
 438 {
 439 }
 440 #endif
 441
 442 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
 443
 444 /*
 445  * initialize the PCI registers
 446  */
 447 /* update bits in a PCI register byte */
 448 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
 449                             unsigned char mask, unsigned char val)
 450 {
 451         unsigned char data;
 452
 453         pci_read_config_byte(pci, reg, &data);
 454         data &= ~mask;
 455         data |= (val & mask);
 456         pci_write_config_byte(pci, reg, data);
 457 }
 458
 459 static void azx_init_pci(struct azx *chip)
 460 {
 461         int snoop_type = azx_get_snoop_type(chip);
 462
 463         /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
 464          * TCSEL == Traffic Class Select Register, which sets PCI express QOS
 465          * Ensuring these bits are 0 clears playback static on some HD Audio
 466          * codecs.
 467          * The PCI register TCSEL is defined in the Intel manuals.
 468          */
 469         if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
 470                 dev_dbg(chip->card->dev, "Clearing TCSEL\n");
 471                 update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
 472         }
 473
 474         /* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
 475          * we need to enable snoop.
 476          */
 477         if (snoop_type == AZX_SNOOP_TYPE_ATI) {
 478                 dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
 479                         azx_snoop(chip));
 480                 update_pci_byte(chip->pci,
 481                                 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
 482                                 azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
 483         }
 484
 485         /* For NVIDIA HDA, enable snoop */
 486         if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
 487                 dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
 488                         azx_snoop(chip));
 489                 update_pci_byte(chip->pci,
 490                                 NVIDIA_HDA_TRANSREG_ADDR,
 491                                 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
 492                 update_pci_byte(chip->pci,
 493                                 NVIDIA_HDA_ISTRM_COH,
 494                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
 495                 update_pci_byte(chip->pci,
 496                                 NVIDIA_HDA_OSTRM_COH,
 497                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
 498         }
 499
 500         /* Enable SCH/PCH snoop if needed */
 501         if (snoop_type == AZX_SNOOP_TYPE_SCH) {
 502                 unsigned short snoop;
 503                 pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
 504                 if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
 505                     (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
 506                         snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
 507                         if (!azx_snoop(chip))
 508                                 snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
 509                         pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
 510                         pci_read_config_word(chip->pci,
 511                                 INTEL_SCH_HDA_DEVC, &snoop);
 512                 }
 513                 dev_dbg(chip->card->dev, "SCH snoop: %s\n",
 514                         (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
 515                         "Disabled" : "Enabled");
 516         }
 517 }
 518
 519 /*
 520  * In BXT-P A0, HD-Audio DMA requests is later than expected,
 521  * and makes an audio stream sensitive to system latencies when
 522  * 24/32 bits are playing.
 523  * Adjusting threshold of DMA fifo to force the DMA request
 524  * sooner to improve latency tolerance at the expense of power.
 525  */
 526 static void bxt_reduce_dma_latency(struct azx *chip)
 527 {
 528         u32 val;
 529
 530         val = azx_readl(chip, SKL_EM4L);
 531         val &= (0x3 << 20);
 532         azx_writel(chip, SKL_EM4L, val);
 533 }
 534
 535 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
 536 {
 537         struct hdac_bus *bus = azx_bus(chip);
 538         struct pci_dev *pci = chip->pci;
 539         u32 val;
 540
 541         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
 542                 snd_hdac_set_codec_wakeup(bus, true);
 543         if (IS_SKL_PLUS(pci)) {
 544                 pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
 545                 val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
 546                 pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
 547         }
 548         azx_init_chip(chip, full_reset);
 549         if (IS_SKL_PLUS(pci)) {
 550                 pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
 551                 val = val | INTEL_HDA_CGCTL_MISCBDCGE;
 552                 pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
 553         }
 554         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
 555                 snd_hdac_set_codec_wakeup(bus, false);
 556
 557         /* reduce dma latency to avoid noise */
 558         if (IS_BXT(pci))
 559                 bxt_reduce_dma_latency(chip);
 560 }
 561
 562 /* calculate runtime delay from LPIB */
 563 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
 564                                    unsigned int pos)
 565 {
 566         struct snd_pcm_substream *substream = azx_dev->core.substream;
 567         int stream = substream->stream;
 568         unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
 569         int delay;
 570
 571         if (stream == SNDRV_PCM_STREAM_PLAYBACK)
 572                 delay = pos - lpib_pos;
 573         else
 574                 delay = lpib_pos - pos;
 575         if (delay < 0) {
 576                 if (delay >= azx_dev->core.delay_negative_threshold)
 577                         delay = 0;
 578                 else
 579                         delay += azx_dev->core.bufsize;
 580         }
 581
 582         if (delay >= azx_dev->core.period_bytes) {
 583                 dev_info(chip->card->dev,
 584                          "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
 585                          delay, azx_dev->core.period_bytes);
 586                 delay = 0;
 587                 chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
 588                 chip->get_delay[stream] = NULL;
 589         }
 590
 591         return bytes_to_frames(substream->runtime, delay);
 592 }
 593
 594 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
 595
 596 /* called from IRQ */
 597 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
 598 {
 599         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 600         int ok;
 601
 602         ok = azx_position_ok(chip, azx_dev);
 603         if (ok == 1) {
 604                 azx_dev->irq_pending = 0;
 605                 return ok;
 606         } else if (ok == 0) {
 607                 /* bogus IRQ, process it later */
 608                 azx_dev->irq_pending = 1;
 609                 schedule_work(&hda->irq_pending_work);
 610         }
 611         return 0;
 612 }
 613
 614 /* Enable/disable i915 display power for the link */
 615 static int azx_intel_link_power(struct azx *chip, bool enable)
 616 {
 617         struct hdac_bus *bus = azx_bus(chip);
 618
 619         return snd_hdac_display_power(bus, enable);
 620 }
 621
 622 /*
 623  * Check whether the current DMA position is acceptable for updating
 624  * periods.  Returns non-zero if it's OK.
 625  *
 626  * Many HD-audio controllers appear pretty inaccurate about
 627  * the update-IRQ timing.  The IRQ is issued before actually the
 628  * data is processed.  So, we need to process it afterwords in a
 629  * workqueue.
 630  */
 631 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
 632 {
 633         struct snd_pcm_substream *substream = azx_dev->core.substream;
 634         int stream = substream->stream;
 635         u32 wallclk;
 636         unsigned int pos;
 637
 638         wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
 639         if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
 640                 return -1;      /* bogus (too early) interrupt */
 641
 642         if (chip->get_position[stream])
 643                 pos = chip->get_position[stream](chip, azx_dev);
 644         else { /* use the position buffer as default */
 645                 pos = azx_get_pos_posbuf(chip, azx_dev);
 646                 if (!pos || pos == (u32)-1) {
 647                         dev_info(chip->card->dev,
 648                                  "Invalid position buffer, using LPIB read method instead.\n");
 649                         chip->get_position[stream] = azx_get_pos_lpib;
 650                         if (chip->get_position[0] == azx_get_pos_lpib &&
 651                             chip->get_position[1] == azx_get_pos_lpib)
 652                                 azx_bus(chip)->use_posbuf = false;
 653                         pos = azx_get_pos_lpib(chip, azx_dev);
 654                         chip->get_delay[stream] = NULL;
 655                 } else {
 656                         chip->get_position[stream] = azx_get_pos_posbuf;
 657                         if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
 658                                 chip->get_delay[stream] = azx_get_delay_from_lpib;
 659                 }
 660         }
 661
 662         if (pos >= azx_dev->core.bufsize)
 663                 pos = 0;
 664
 665         if (WARN_ONCE(!azx_dev->core.period_bytes,
 666                       "hda-intel: zero azx_dev->period_bytes"))
 667                 return -1; /* this shouldn't happen! */
 668         if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
 669             pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
 670                 /* NG - it's below the first next period boundary */
 671                 return chip->bdl_pos_adj[chip->dev_index] ? 0 : -1;
 672         azx_dev->core.start_wallclk += wallclk;
 673         return 1; /* OK, it's fine */
 674 }
 675
 676 /*
 677  * The work for pending PCM period updates.
 678  */
 679 static void azx_irq_pending_work(struct work_struct *work)
 680 {
 681         struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
 682         struct azx *chip = &hda->chip;
 683         struct hdac_bus *bus = azx_bus(chip);
 684         struct hdac_stream *s;
 685         int pending, ok;
 686
 687         if (!hda->irq_pending_warned) {
 688                 dev_info(chip->card->dev,
 689                          "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
 690                          chip->card->number);
 691                 hda->irq_pending_warned = 1;
 692         }
 693
 694         for (;;) {
 695                 pending = 0;
 696                 spin_lock_irq(&bus->reg_lock);
 697                 list_for_each_entry(s, &bus->stream_list, list) {
 698                         struct azx_dev *azx_dev = stream_to_azx_dev(s);
 699                         if (!azx_dev->irq_pending ||
 700                             !s->substream ||
 701                             !s->running)
 702                                 continue;
 703                         ok = azx_position_ok(chip, azx_dev);
 704                         if (ok > 0) {
 705                                 azx_dev->irq_pending = 0;
 706                                 spin_unlock(&bus->reg_lock);
 707                                 snd_pcm_period_elapsed(s->substream);
 708                                 spin_lock(&bus->reg_lock);
 709                         } else if (ok < 0) {
 710                                 pending = 0;    /* too early */
 711                         } else
 712                                 pending++;
 713                 }
 714                 spin_unlock_irq(&bus->reg_lock);
 715                 if (!pending)
 716                         return;
 717                 msleep(1);
 718         }
 719 }
 720
 721 /* clear irq_pending flags and assure no on-going workq */
 722 static void azx_clear_irq_pending(struct azx *chip)
 723 {
 724         struct hdac_bus *bus = azx_bus(chip);
 725         struct hdac_stream *s;
 726
 727         spin_lock_irq(&bus->reg_lock);
 728         list_for_each_entry(s, &bus->stream_list, list) {
 729                 struct azx_dev *azx_dev = stream_to_azx_dev(s);
 730                 azx_dev->irq_pending = 0;
 731         }
 732         spin_unlock_irq(&bus->reg_lock);
 733 }
 734
 735 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
 736 {
 737         struct hdac_bus *bus = azx_bus(chip);
 738
 739         if (request_irq(chip->pci->irq, azx_interrupt,
 740                         chip->msi ? 0 : IRQF_SHARED,
 741                         KBUILD_MODNAME, chip)) {
 742                 dev_err(chip->card->dev,
 743                         "unable to grab IRQ %d, disabling device\n",
 744                         chip->pci->irq);
 745                 if (do_disconnect)
 746                         snd_card_disconnect(chip->card);
 747                 return -1;
 748         }
 749         bus->irq = chip->pci->irq;
 750         pci_intx(chip->pci, !chip->msi);
 751         return 0;
 752 }
 753
 754 /* get the current DMA position with correction on VIA chips */
 755 static unsigned int azx_via_get_position(struct azx *chip,
 756                                          struct azx_dev *azx_dev)
 757 {
 758         unsigned int link_pos, mini_pos, bound_pos;
 759         unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
 760         unsigned int fifo_size;
 761
 762         link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
 763         if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 764                 /* Playback, no problem using link position */
 765                 return link_pos;
 766         }
 767
 768         /* Capture */
 769         /* For new chipset,
 770          * use mod to get the DMA position just like old chipset
 771          */
 772         mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
 773         mod_dma_pos %= azx_dev->core.period_bytes;
 774
 775         /* azx_dev->fifo_size can't get FIFO size of in stream.
 776          * Get from base address + offset.
 777          */
 778         fifo_size = readw(azx_bus(chip)->remap_addr +
 779                           VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
 780
 781         if (azx_dev->insufficient) {
 782                 /* Link position never gather than FIFO size */
 783                 if (link_pos <= fifo_size)
 784                         return 0;
 785
 786                 azx_dev->insufficient = 0;
 787         }
 788
 789         if (link_pos <= fifo_size)
 790                 mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
 791         else
 792                 mini_pos = link_pos - fifo_size;
 793
 794         /* Find nearest previous boudary */
 795         mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
 796         mod_link_pos = link_pos % azx_dev->core.period_bytes;
 797         if (mod_link_pos >= fifo_size)
 798                 bound_pos = link_pos - mod_link_pos;
 799         else if (mod_dma_pos >= mod_mini_pos)
 800                 bound_pos = mini_pos - mod_mini_pos;
 801         else {
 802                 bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
 803                 if (bound_pos >= azx_dev->core.bufsize)
 804                         bound_pos = 0;
 805         }
 806
 807         /* Calculate real DMA position we want */
 808         return bound_pos + mod_dma_pos;
 809 }
 810
 811 #ifdef CONFIG_PM
 812 static DEFINE_MUTEX(card_list_lock);
 813 static LIST_HEAD(card_list);
 814
 815 static void azx_add_card_list(struct azx *chip)
 816 {
 817         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 818         mutex_lock(&card_list_lock);
 819         list_add(&hda->list, &card_list);
 820         mutex_unlock(&card_list_lock);
 821 }
 822
 823 static void azx_del_card_list(struct azx *chip)
 824 {
 825         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 826         mutex_lock(&card_list_lock);
 827         list_del_init(&hda->list);
 828         mutex_unlock(&card_list_lock);
 829 }
 830
 831 /* trigger power-save check at writing parameter */
 832 static int param_set_xint(const char *val, const struct kernel_param *kp)
 833 {
 834         struct hda_intel *hda;
 835         struct azx *chip;
 836         int prev = power_save;
 837         int ret = param_set_int(val, kp);
 838
 839         if (ret || prev == power_save)
 840                 return ret;
 841
 842         mutex_lock(&card_list_lock);
 843         list_for_each_entry(hda, &card_list, list) {
 844                 chip = &hda->chip;
 845                 if (!hda->probe_continued || chip->disabled)
 846                         continue;
 847                 snd_hda_set_power_save(&chip->bus, power_save * 1000);
 848         }
 849         mutex_unlock(&card_list_lock);
 850         return 0;
 851 }
 852 #else
 853 #define azx_add_card_list(chip) /* NOP */
 854 #define azx_del_card_list(chip) /* NOP */
 855 #endif /* CONFIG_PM */
 856
 857 /* Intel HSW/BDW display HDA controller is in GPU. Both its power and link BCLK
 858  * depends on GPU. Two Extended Mode registers EM4 (M value) and EM5 (N Value)
 859  * are used to convert CDClk (Core Display Clock) to 24MHz BCLK:
 860  * BCLK = CDCLK * M / N
 861  * The values will be lost when the display power well is disabled and need to
 862  * be restored to avoid abnormal playback speed.
 863  */
 864 static void haswell_set_bclk(struct hda_intel *hda)
 865 {
 866         struct azx *chip = &hda->chip;
 867         int cdclk_freq;
 868         unsigned int bclk_m, bclk_n;
 869
 870         if (!hda->need_i915_power)
 871                 return;
 872
 873         cdclk_freq = snd_hdac_get_display_clk(azx_bus(chip));
 874         switch (cdclk_freq) {
 875         case 337500:
 876                 bclk_m = 16;
 877                 bclk_n = 225;
 878                 break;
 879
 880         case 450000:
 881         default: /* default CDCLK 450MHz */
 882                 bclk_m = 4;
 883                 bclk_n = 75;
 884                 break;
 885
 886         case 540000:
 887                 bclk_m = 4;
 888                 bclk_n = 90;
 889                 break;
 890
 891         case 675000:
 892                 bclk_m = 8;
 893                 bclk_n = 225;
 894                 break;
 895         }
 896
 897         azx_writew(chip, HSW_EM4, bclk_m);
 898         azx_writew(chip, HSW_EM5, bclk_n);
 899 }
 900
 901 #if defined(CONFIG_PM_SLEEP) || defined(SUPPORT_VGA_SWITCHEROO)
 902 /*
 903  * power management
 904  */
 905 static int azx_suspend(struct device *dev)
 906 {
 907         struct snd_card *card = dev_get_drvdata(dev);
 908         struct azx *chip;
 909         struct hda_intel *hda;
 910         struct hdac_bus *bus;
 911
 912         if (!card)
 913                 return 0;
 914
 915         chip = card->private_data;
 916         hda = container_of(chip, struct hda_intel, chip);
 917         if (chip->disabled || hda->init_failed || !chip->running)
 918                 return 0;
 919
 920         bus = azx_bus(chip);
 921         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 922         azx_clear_irq_pending(chip);
 923         azx_stop_chip(chip);
 924         azx_enter_link_reset(chip);
 925         if (bus->irq >= 0) {
 926                 free_irq(bus->irq, chip);
 927                 bus->irq = -1;
 928         }
 929
 930         if (chip->msi)
 931                 pci_disable_msi(chip->pci);
 932         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
 933                 && hda->need_i915_power)
 934                 snd_hdac_display_power(bus, false);
 935
 936         trace_azx_suspend(chip);
 937         return 0;
 938 }
 939
 940 static int azx_resume(struct device *dev)
 941 {
 942         struct pci_dev *pci = to_pci_dev(dev);
 943         struct snd_card *card = dev_get_drvdata(dev);
 944         struct azx *chip;
 945         struct hda_intel *hda;
 946         struct hdac_bus *bus;
 947
 948         if (!card)
 949                 return 0;
 950
 951         chip = card->private_data;
 952         hda = container_of(chip, struct hda_intel, chip);
 953         bus = azx_bus(chip);
 954         if (chip->disabled || hda->init_failed || !chip->running)
 955                 return 0;
 956
 957         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
 958                 snd_hdac_display_power(bus, true);
 959                 if (hda->need_i915_power)
 960                         haswell_set_bclk(hda);
 961         }
 962
 963         if (chip->msi)
 964                 if (pci_enable_msi(pci) < 0)
 965                         chip->msi = 0;
 966         if (azx_acquire_irq(chip, 1) < 0)
 967                 return -EIO;
 968         azx_init_pci(chip);
 969
 970         hda_intel_init_chip(chip, true);
 971
 972         /* power down again for link-controlled chips */
 973         if ((chip->driver_caps & AZX_DCAPS_I915_POWERWELL) &&
 974             !hda->need_i915_power)
 975                 snd_hdac_display_power(bus, false);
 976
 977         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 978
 979         trace_azx_resume(chip);
 980         return 0;
 981 }
 982 #endif /* CONFIG_PM_SLEEP || SUPPORT_VGA_SWITCHEROO */
 983
 984 #ifdef CONFIG_PM_SLEEP
 985 /* put codec down to D3 at hibernation for Intel SKL+;
 986  * otherwise BIOS may still access the codec and screw up the driver
 987  */
 988 static int azx_freeze_noirq(struct device *dev)
 989 {
 990         struct pci_dev *pci = to_pci_dev(dev);
 991
 992         if (IS_SKL_PLUS(pci))
 993                 pci_set_power_state(pci, PCI_D3hot);
 994
 995         return 0;
 996 }
 997
 998 static int azx_thaw_noirq(struct device *dev)
 999 {
1000         struct pci_dev *pci = to_pci_dev(dev);
1001
1002         if (IS_SKL_PLUS(pci))
1003                 pci_set_power_state(pci, PCI_D0);
1004
1005         return 0;
1006 }
1007 #endif /* CONFIG_PM_SLEEP */
1008
1009 #ifdef CONFIG_PM
1010 static int azx_runtime_suspend(struct device *dev)
1011 {
1012         struct snd_card *card = dev_get_drvdata(dev);
1013         struct azx *chip;
1014         struct hda_intel *hda;
1015
1016         if (!card)
1017                 return 0;
1018
1019         chip = card->private_data;
1020         hda = container_of(chip, struct hda_intel, chip);
1021         if (chip->disabled || hda->init_failed)
1022                 return 0;
1023
1024         if (!azx_has_pm_runtime(chip))
1025                 return 0;
1026
1027         /* enable controller wake up event */
1028         azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
1029                   STATESTS_INT_MASK);
1030
1031         azx_stop_chip(chip);
1032         azx_enter_link_reset(chip);
1033         azx_clear_irq_pending(chip);
1034         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
1035                 && hda->need_i915_power)
1036                 snd_hdac_display_power(azx_bus(chip), false);
1037
1038         trace_azx_runtime_suspend(chip);
1039         return 0;
1040 }
1041
1042 static int azx_runtime_resume(struct device *dev)
1043 {
1044         struct snd_card *card = dev_get_drvdata(dev);
1045         struct azx *chip;
1046         struct hda_intel *hda;
1047         struct hdac_bus *bus;
1048         struct hda_codec *codec;
1049         int status;
1050
1051         if (!card)
1052                 return 0;
1053
1054         chip = card->private_data;
1055         hda = container_of(chip, struct hda_intel, chip);
1056         bus = azx_bus(chip);
1057         if (chip->disabled || hda->init_failed)
1058                 return 0;
1059
1060         if (!azx_has_pm_runtime(chip))
1061                 return 0;
1062
1063         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
1064                 snd_hdac_display_power(bus, true);
1065                 if (hda->need_i915_power)
1066                         haswell_set_bclk(hda);
1067         }
1068
1069         /* Read STATESTS before controller reset */
1070         status = azx_readw(chip, STATESTS);
1071
1072         azx_init_pci(chip);
1073         hda_intel_init_chip(chip, true);
1074
1075         if (status) {
1076                 list_for_each_codec(codec, &chip->bus)
1077                         if (status & (1 << codec->addr))
1078                                 schedule_delayed_work(&codec->jackpoll_work,
1079                                                       codec->jackpoll_interval);
1080         }
1081
1082         /* disable controller Wake Up event*/
1083         azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
1084                         ~STATESTS_INT_MASK);
1085
1086         /* power down again for link-controlled chips */
1087         if ((chip->driver_caps & AZX_DCAPS_I915_POWERWELL) &&
1088             !hda->need_i915_power)
1089                 snd_hdac_display_power(bus, false);
1090
1091         trace_azx_runtime_resume(chip);
1092         return 0;
1093 }
1094
1095 static int azx_runtime_idle(struct device *dev)
1096 {
1097         struct snd_card *card = dev_get_drvdata(dev);
1098         struct azx *chip;
1099         struct hda_intel *hda;
1100
1101         if (!card)
1102                 return 0;
1103
1104         chip = card->private_data;
1105         hda = container_of(chip, struct hda_intel, chip);
1106         if (chip->disabled || hda->init_failed)
1107                 return 0;
1108
1109         if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1110             azx_bus(chip)->codec_powered || !chip->running)
1111                 return -EBUSY;
1112
1113         return 0;
1114 }
1115
1116 static const struct dev_pm_ops azx_pm = {
1117         SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1118 #ifdef CONFIG_PM_SLEEP
1119         .freeze_noirq = azx_freeze_noirq,
1120         .thaw_noirq = azx_thaw_noirq,
1121 #endif
1122         SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1123 };
1124
1125 #define AZX_PM_OPS      &azx_pm
1126 #else
1127 #define AZX_PM_OPS      NULL
1128 #endif /* CONFIG_PM */
1129
1130
1131 static int azx_probe_continue(struct azx *chip);
1132
1133 #ifdef SUPPORT_VGA_SWITCHEROO
1134 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1135
1136 static void azx_vs_set_state(struct pci_dev *pci,
1137                              enum vga_switcheroo_state state)
1138 {
1139         struct snd_card *card = pci_get_drvdata(pci);
1140         struct azx *chip = card->private_data;
1141         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1142         bool disabled;
1143
1144         wait_for_completion(&hda->probe_wait);
1145         if (hda->init_failed)
1146                 return;
1147
1148         disabled = (state == VGA_SWITCHEROO_OFF);
1149         if (chip->disabled == disabled)
1150                 return;
1151
1152         if (!hda->probe_continued) {
1153                 chip->disabled = disabled;
1154                 if (!disabled) {
1155                         dev_info(chip->card->dev,
1156                                  "Start delayed initialization\n");
1157                         if (azx_probe_continue(chip) < 0) {
1158                                 dev_err(chip->card->dev, "initialization error\n");
1159                                 hda->init_failed = true;
1160                         }
1161                 }
1162         } else {
1163                 dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1164                          disabled ? "Disabling" : "Enabling");
1165                 if (disabled) {
1166                         pm_runtime_put_sync_suspend(card->dev);
1167                         azx_suspend(card->dev);
1168                         /* when we get suspended by vga_switcheroo we end up in D3cold,
1169                          * however we have no ACPI handle, so pci/acpi can't put us there,
1170                          * put ourselves there */
1171                         pci->current_state = PCI_D3cold;
1172                         chip->disabled = true;
1173                         if (snd_hda_lock_devices(&chip->bus))
1174                                 dev_warn(chip->card->dev,
1175                                          "Cannot lock devices!\n");
1176                 } else {
1177                         snd_hda_unlock_devices(&chip->bus);
1178                         pm_runtime_get_noresume(card->dev);
1179                         chip->disabled = false;
1180                         azx_resume(card->dev);
1181                 }
1182         }
1183 }
1184
1185 static bool azx_vs_can_switch(struct pci_dev *pci)
1186 {
1187         struct snd_card *card = pci_get_drvdata(pci);
1188         struct azx *chip = card->private_data;
1189         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1190
1191         wait_for_completion(&hda->probe_wait);
1192         if (hda->init_failed)
1193                 return false;
1194         if (chip->disabled || !hda->probe_continued)
1195                 return true;
1196         if (snd_hda_lock_devices(&chip->bus))
1197                 return false;
1198         snd_hda_unlock_devices(&chip->bus);
1199         return true;
1200 }
1201
1202 static void init_vga_switcheroo(struct azx *chip)
1203 {
1204         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1205         struct pci_dev *p = get_bound_vga(chip->pci);
1206         if (p) {
1207                 dev_info(chip->card->dev,
1208                          "Handle vga_switcheroo audio client\n");
1209                 hda->use_vga_switcheroo = 1;
1210                 pci_dev_put(p);
1211         }
1212 }
1213
1214 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1215         .set_gpu_state = azx_vs_set_state,
1216         .can_switch = azx_vs_can_switch,
1217 };
1218
1219 static int register_vga_switcheroo(struct azx *chip)
1220 {
1221         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1222         int err;
1223
1224         if (!hda->use_vga_switcheroo)
1225                 return 0;
1226         /* FIXME: currently only handling DIS controller
1227          * is there any machine with two switchable HDMI audio controllers?
1228          */
1229         err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops,
1230                                                    VGA_SWITCHEROO_DIS);
1231         if (err < 0)
1232                 return err;
1233         hda->vga_switcheroo_registered = 1;
1234
1235         /* register as an optimus hdmi audio power domain */
1236         vga_switcheroo_init_domain_pm_optimus_hdmi_audio(chip->card->dev,
1237                                                          &hda->hdmi_pm_domain);
1238         return 0;
1239 }
1240 #else
1241 #define init_vga_switcheroo(chip)               /* NOP */
1242 #define register_vga_switcheroo(chip)           0
1243 #define check_hdmi_disabled(pci)        false
1244 #endif /* SUPPORT_VGA_SWITCHER */
1245
1246 /*
1247  * destructor
1248  */
1249 static int azx_free(struct azx *chip)
1250 {
1251         struct pci_dev *pci = chip->pci;
1252         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1253         struct hdac_bus *bus = azx_bus(chip);
1254
1255         if (azx_has_pm_runtime(chip) && chip->running)
1256                 pm_runtime_get_noresume(&pci->dev);
1257
1258         azx_del_card_list(chip);
1259
1260         hda->init_failed = 1; /* to be sure */
1261         complete_all(&hda->probe_wait);
1262
1263         if (use_vga_switcheroo(hda)) {
1264                 if (chip->disabled && hda->probe_continued)
1265                         snd_hda_unlock_devices(&chip->bus);
1266                 if (hda->vga_switcheroo_registered) {
1267                         vga_switcheroo_unregister_client(chip->pci);
1268                         vga_switcheroo_fini_domain_pm_ops(chip->card->dev);
1269                 }
1270         }
1271
1272         if (bus->chip_init) {
1273                 azx_clear_irq_pending(chip);
1274                 azx_stop_all_streams(chip);
1275                 azx_stop_chip(chip);
1276         }
1277
1278         if (bus->irq >= 0)
1279                 free_irq(bus->irq, (void*)chip);
1280         if (chip->msi)
1281                 pci_disable_msi(chip->pci);
1282         iounmap(bus->remap_addr);
1283
1284         azx_free_stream_pages(chip);
1285         azx_free_streams(chip);
1286         snd_hdac_bus_exit(bus);
1287
1288         if (chip->region_requested)
1289                 pci_release_regions(chip->pci);
1290
1291         pci_disable_device(chip->pci);
1292 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1293         release_firmware(chip->fw);
1294 #endif
1295
1296         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
1297                 if (hda->need_i915_power)
1298                         snd_hdac_display_power(bus, false);
1299                 snd_hdac_i915_exit(bus);
1300         }
1301         kfree(hda);
1302
1303         return 0;
1304 }
1305
1306 static int azx_dev_disconnect(struct snd_device *device)
1307 {
1308         struct azx *chip = device->device_data;
1309
1310         chip->bus.shutdown = 1;
1311         return 0;
1312 }
1313
1314 static int azx_dev_free(struct snd_device *device)
1315 {
1316         return azx_free(device->device_data);
1317 }
1318
1319 #ifdef SUPPORT_VGA_SWITCHEROO
1320 /*
1321  * Check of disabled HDMI controller by vga_switcheroo
1322  */
1323 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1324 {
1325         struct pci_dev *p;
1326
1327         /* check only discrete GPU */
1328         switch (pci->vendor) {
1329         case PCI_VENDOR_ID_ATI:
1330         case PCI_VENDOR_ID_AMD:
1331         case PCI_VENDOR_ID_NVIDIA:
1332                 if (pci->devfn == 1) {
1333                         p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1334                                                         pci->bus->number, 0);
1335                         if (p) {
1336                                 if ((p->class >> 8) == PCI_CLASS_DISPLAY_VGA)
1337                                         return p;
1338                                 pci_dev_put(p);
1339                         }
1340                 }
1341                 break;
1342         }
1343         return NULL;
1344 }
1345
1346 static bool check_hdmi_disabled(struct pci_dev *pci)
1347 {
1348         bool vga_inactive = false;
1349         struct pci_dev *p = get_bound_vga(pci);
1350
1351         if (p) {
1352                 if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1353                         vga_inactive = true;
1354                 pci_dev_put(p);
1355         }
1356         return vga_inactive;
1357 }
1358 #endif /* SUPPORT_VGA_SWITCHEROO */
1359
1360 /*
1361  * white/black-listing for position_fix
1362  */
1363 static struct snd_pci_quirk position_fix_list[] = {
1364         SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1365         SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1366         SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1367         SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1368         SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1369         SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1370         SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1371         SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1372         SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1373         SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1374         SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1375         SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1376         SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1377         SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1378         {}
1379 };
1380
1381 static int check_position_fix(struct azx *chip, int fix)
1382 {
1383         const struct snd_pci_quirk *q;
1384
1385         switch (fix) {
1386         case POS_FIX_AUTO:
1387         case POS_FIX_LPIB:
1388         case POS_FIX_POSBUF:
1389         case POS_FIX_VIACOMBO:
1390         case POS_FIX_COMBO:
1391                 return fix;
1392         }
1393
1394         q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1395         if (q) {
1396                 dev_info(chip->card->dev,
1397                          "position_fix set to %d for device %04x:%04x\n",
1398                          q->value, q->subvendor, q->subdevice);
1399                 return q->value;
1400         }
1401
1402         /* Check VIA/ATI HD Audio Controller exist */
1403         if (chip->driver_caps & AZX_DCAPS_POSFIX_VIA) {
1404                 dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1405                 return POS_FIX_VIACOMBO;
1406         }
1407         if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1408                 dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1409                 return POS_FIX_LPIB;
1410         }
1411         return POS_FIX_AUTO;
1412 }
1413
1414 static void assign_position_fix(struct azx *chip, int fix)
1415 {
1416         static azx_get_pos_callback_t callbacks[] = {
1417                 [POS_FIX_AUTO] = NULL,
1418                 [POS_FIX_LPIB] = azx_get_pos_lpib,
1419                 [POS_FIX_POSBUF] = azx_get_pos_posbuf,
1420                 [POS_FIX_VIACOMBO] = azx_via_get_position,
1421                 [POS_FIX_COMBO] = azx_get_pos_lpib,
1422         };
1423
1424         chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1425
1426         /* combo mode uses LPIB only for playback */
1427         if (fix == POS_FIX_COMBO)
1428                 chip->get_position[1] = NULL;
1429
1430         if (fix == POS_FIX_POSBUF &&
1431             (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1432                 chip->get_delay[0] = chip->get_delay[1] =
1433                         azx_get_delay_from_lpib;
1434         }
1435
1436 }
1437
1438 /*
1439  * black-lists for probe_mask
1440  */
1441 static struct snd_pci_quirk probe_mask_list[] = {
1442         /* Thinkpad often breaks the controller communication when accessing
1443          * to the non-working (or non-existing) modem codec slot.
1444          */
1445         SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1446         SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1447         SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1448         /* broken BIOS */
1449         SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1450         /* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1451         SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1452         /* forced codec slots */
1453         SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1454         SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1455         /* WinFast VP200 H (Teradici) user reported broken communication */
1456         SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1457         {}
1458 };
1459
1460 #define AZX_FORCE_CODEC_MASK    0x100
1461
1462 static void check_probe_mask(struct azx *chip, int dev)
1463 {
1464         const struct snd_pci_quirk *q;
1465
1466         chip->codec_probe_mask = probe_mask[dev];
1467         if (chip->codec_probe_mask == -1) {
1468                 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1469                 if (q) {
1470                         dev_info(chip->card->dev,
1471                                  "probe_mask set to 0x%x for device %04x:%04x\n",
1472                                  q->value, q->subvendor, q->subdevice);
1473                         chip->codec_probe_mask = q->value;
1474                 }
1475         }
1476
1477         /* check forced option */
1478         if (chip->codec_probe_mask != -1 &&
1479             (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1480                 azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1481                 dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1482                          (int)azx_bus(chip)->codec_mask);
1483         }
1484 }
1485
1486 /*
1487  * white/black-list for enable_msi
1488  */
1489 static struct snd_pci_quirk msi_black_list[] = {
1490         SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1491         SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1492         SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1493         SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1494         SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1495         SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1496         SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1497         SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1498         SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1499         SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1500         {}
1501 };
1502
1503 static void check_msi(struct azx *chip)
1504 {
1505         const struct snd_pci_quirk *q;
1506
1507         if (enable_msi >= 0) {
1508                 chip->msi = !!enable_msi;
1509                 return;
1510         }
1511         chip->msi = 1;  /* enable MSI as default */
1512         q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
1513         if (q) {
1514                 dev_info(chip->card->dev,
1515                          "msi for device %04x:%04x set to %d\n",
1516                          q->subvendor, q->subdevice, q->value);
1517                 chip->msi = q->value;
1518                 return;
1519         }
1520
1521         /* NVidia chipsets seem to cause troubles with MSI */
1522         if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1523                 dev_info(chip->card->dev, "Disabling MSI\n");
1524                 chip->msi = 0;
1525         }
1526 }
1527
1528 /* check the snoop mode availability */
1529 static void azx_check_snoop_available(struct azx *chip)
1530 {
1531         int snoop = hda_snoop;
1532
1533         if (snoop >= 0) {
1534                 dev_info(chip->card->dev, "Force to %s mode by module option\n",
1535                          snoop ? "snoop" : "non-snoop");
1536                 chip->snoop = snoop;
1537                 return;
1538         }
1539
1540         snoop = true;
1541         if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1542             chip->driver_type == AZX_DRIVER_VIA) {
1543                 /* force to non-snoop mode for a new VIA controller
1544                  * when BIOS is set
1545                  */
1546                 u8 val;
1547                 pci_read_config_byte(chip->pci, 0x42, &val);
1548                 if (!(val & 0x80) && chip->pci->revision == 0x30)
1549                         snoop = false;
1550         }
1551
1552         if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1553                 snoop = false;
1554
1555         chip->snoop = snoop;
1556         if (!snoop)
1557                 dev_info(chip->card->dev, "Force to non-snoop mode\n");
1558 }
1559
1560 static void azx_probe_work(struct work_struct *work)
1561 {
1562         struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
1563         azx_probe_continue(&hda->chip);
1564 }
1565
1566 /*
1567  * constructor
1568  */
1569 static const struct hdac_io_ops pci_hda_io_ops;
1570 static const struct hda_controller_ops pci_hda_ops;
1571
1572 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1573                       int dev, unsigned int driver_caps,
1574                       struct azx **rchip)
1575 {
1576         static struct snd_device_ops ops = {
1577                 .dev_disconnect = azx_dev_disconnect,
1578                 .dev_free = azx_dev_free,
1579         };
1580         struct hda_intel *hda;
1581         struct azx *chip;
1582         int err;
1583
1584         *rchip = NULL;
1585
1586         err = pci_enable_device(pci);
1587         if (err < 0)
1588                 return err;
1589
1590         hda = kzalloc(sizeof(*hda), GFP_KERNEL);
1591         if (!hda) {
1592                 pci_disable_device(pci);
1593                 return -ENOMEM;
1594         }
1595
1596         chip = &hda->chip;
1597         mutex_init(&chip->open_mutex);
1598         chip->card = card;
1599         chip->pci = pci;
1600         chip->ops = &pci_hda_ops;
1601         chip->driver_caps = driver_caps;
1602         chip->driver_type = driver_caps & 0xff;
1603         check_msi(chip);
1604         chip->dev_index = dev;
1605         chip->jackpoll_ms = jackpoll_ms;
1606         INIT_LIST_HEAD(&chip->pcm_list);
1607         INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1608         INIT_LIST_HEAD(&hda->list);
1609         init_vga_switcheroo(chip);
1610         init_completion(&hda->probe_wait);
1611
1612         assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1613
1614         check_probe_mask(chip, dev);
1615
1616         chip->single_cmd = single_cmd;
1617         azx_check_snoop_available(chip);
1618
1619         if (bdl_pos_adj[dev] < 0) {
1620                 switch (chip->driver_type) {
1621                 case AZX_DRIVER_ICH:
1622                 case AZX_DRIVER_PCH:
1623                         bdl_pos_adj[dev] = 1;
1624                         break;
1625                 default:
1626                         bdl_pos_adj[dev] = 32;
1627                         break;
1628                 }
1629         }
1630         chip->bdl_pos_adj = bdl_pos_adj;
1631
1632         err = azx_bus_init(chip, model[dev], &pci_hda_io_ops);
1633         if (err < 0) {
1634                 kfree(hda);
1635                 pci_disable_device(pci);
1636                 return err;
1637         }
1638
1639         if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1640                 dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1641                 chip->bus.needs_damn_long_delay = 1;
1642         }
1643
1644         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1645         if (err < 0) {
1646                 dev_err(card->dev, "Error creating device [card]!\n");
1647                 azx_free(chip);
1648                 return err;
1649         }
1650
1651         /* continue probing in work context as may trigger request module */
1652         INIT_WORK(&hda->probe_work, azx_probe_work);
1653
1654         *rchip = chip;
1655
1656         return 0;
1657 }
1658
1659 static int azx_first_init(struct azx *chip)
1660 {
1661         int dev = chip->dev_index;
1662         struct pci_dev *pci = chip->pci;
1663         struct snd_card *card = chip->card;
1664         struct hdac_bus *bus = azx_bus(chip);
1665         int err;
1666         unsigned short gcap;
1667         unsigned int dma_bits = 64;
1668
1669 #if BITS_PER_LONG != 64
1670         /* Fix up base address on ULI M5461 */
1671         if (chip->driver_type == AZX_DRIVER_ULI) {
1672                 u16 tmp3;
1673                 pci_read_config_word(pci, 0x40, &tmp3);
1674                 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1675                 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1676         }
1677 #endif
1678
1679         err = pci_request_regions(pci, "ICH HD audio");
1680         if (err < 0)
1681                 return err;
1682         chip->region_requested = 1;
1683
1684         bus->addr = pci_resource_start(pci, 0);
1685         bus->remap_addr = pci_ioremap_bar(pci, 0);
1686         if (bus->remap_addr == NULL) {
1687                 dev_err(card->dev, "ioremap error\n");
1688                 return -ENXIO;
1689         }
1690
1691         if (chip->msi) {
1692                 if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1693                         dev_dbg(card->dev, "Disabling 64bit MSI\n");
1694                         pci->no_64bit_msi = true;
1695                 }
1696                 if (pci_enable_msi(pci) < 0)
1697                         chip->msi = 0;
1698         }
1699
1700         if (azx_acquire_irq(chip, 0) < 0)
1701                 return -EBUSY;
1702
1703         pci_set_master(pci);
1704         synchronize_irq(bus->irq);
1705
1706         gcap = azx_readw(chip, GCAP);
1707         dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1708
1709         /* AMD devices support 40 or 48bit DMA, take the safe one */
1710         if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1711                 dma_bits = 40;
1712
1713         /* disable SB600 64bit support for safety */
1714         if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1715                 struct pci_dev *p_smbus;
1716                 dma_bits = 40;
1717                 p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1718                                          PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1719                                          NULL);
1720                 if (p_smbus) {
1721                         if (p_smbus->revision < 0x30)
1722                                 gcap &= ~AZX_GCAP_64OK;
1723                         pci_dev_put(p_smbus);
1724                 }
1725         }
1726
1727         /* NVidia hardware normally only supports up to 40 bits of DMA */
1728         if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1729                 dma_bits = 40;
1730
1731         /* disable 64bit DMA address on some devices */
1732         if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1733                 dev_dbg(card->dev, "Disabling 64bit DMA\n");
1734                 gcap &= ~AZX_GCAP_64OK;
1735         }
1736
1737         /* disable buffer size rounding to 128-byte multiples if supported */
1738         if (align_buffer_size >= 0)
1739                 chip->align_buffer_size = !!align_buffer_size;
1740         else {
1741                 if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1742                         chip->align_buffer_size = 0;
1743                 else
1744                         chip->align_buffer_size = 1;
1745         }
1746
1747         /* allow 64bit DMA address if supported by H/W */
1748         if (!(gcap & AZX_GCAP_64OK))
1749                 dma_bits = 32;
1750         if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
1751                 dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(dma_bits));
1752         } else {
1753                 dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
1754                 dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
1755         }
1756
1757         /* read number of streams from GCAP register instead of using
1758          * hardcoded value
1759          */
1760         chip->capture_streams = (gcap >> 8) & 0x0f;
1761         chip->playback_streams = (gcap >> 12) & 0x0f;
1762         if (!chip->playback_streams && !chip->capture_streams) {
1763                 /* gcap didn't give any info, switching to old method */
1764
1765                 switch (chip->driver_type) {
1766                 case AZX_DRIVER_ULI:
1767                         chip->playback_streams = ULI_NUM_PLAYBACK;
1768                         chip->capture_streams = ULI_NUM_CAPTURE;
1769                         break;
1770                 case AZX_DRIVER_ATIHDMI:
1771                 case AZX_DRIVER_ATIHDMI_NS:
1772                         chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1773                         chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1774                         break;
1775                 case AZX_DRIVER_GENERIC:
1776                 default:
1777                         chip->playback_streams = ICH6_NUM_PLAYBACK;
1778                         chip->capture_streams = ICH6_NUM_CAPTURE;
1779                         break;
1780                 }
1781         }
1782         chip->capture_index_offset = 0;
1783         chip->playback_index_offset = chip->capture_streams;
1784         chip->num_streams = chip->playback_streams + chip->capture_streams;
1785
1786         /* initialize streams */
1787         err = azx_init_streams(chip);
1788         if (err < 0)
1789                 return err;
1790
1791         err = azx_alloc_stream_pages(chip);
1792         if (err < 0)
1793                 return err;
1794
1795         /* initialize chip */
1796         azx_init_pci(chip);
1797
1798         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
1799                 struct hda_intel *hda;
1800
1801                 hda = container_of(chip, struct hda_intel, chip);
1802                 haswell_set_bclk(hda);
1803         }
1804
1805         hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
1806
1807         /* codec detection */
1808         if (!azx_bus(chip)->codec_mask) {
1809                 dev_err(card->dev, "no codecs found!\n");
1810                 return -ENODEV;
1811         }
1812
1813         strcpy(card->driver, "HDA-Intel");
1814         strlcpy(card->shortname, driver_short_names[chip->driver_type],
1815                 sizeof(card->shortname));
1816         snprintf(card->longname, sizeof(card->longname),
1817                  "%s at 0x%lx irq %i",
1818                  card->shortname, bus->addr, bus->irq);
1819
1820         return 0;
1821 }
1822
1823 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1824 /* callback from request_firmware_nowait() */
1825 static void azx_firmware_cb(const struct firmware *fw, void *context)
1826 {
1827         struct snd_card *card = context;
1828         struct azx *chip = card->private_data;
1829         struct pci_dev *pci = chip->pci;
1830
1831         if (!fw) {
1832                 dev_err(card->dev, "Cannot load firmware, aborting\n");
1833                 goto error;
1834         }
1835
1836         chip->fw = fw;
1837         if (!chip->disabled) {
1838                 /* continue probing */
1839                 if (azx_probe_continue(chip))
1840                         goto error;
1841         }
1842         return; /* OK */
1843
1844  error:
1845         snd_card_free(card);
1846         pci_set_drvdata(pci, NULL);
1847 }
1848 #endif
1849
1850 /*
1851  * HDA controller ops.
1852  */
1853
1854 /* PCI register access. */
1855 static void pci_azx_writel(u32 value, u32 __iomem *addr)
1856 {
1857         writel(value, addr);
1858 }
1859
1860 static u32 pci_azx_readl(u32 __iomem *addr)
1861 {
1862         return readl(addr);
1863 }
1864
1865 static void pci_azx_writew(u16 value, u16 __iomem *addr)
1866 {
1867         writew(value, addr);
1868 }
1869
1870 static u16 pci_azx_readw(u16 __iomem *addr)
1871 {
1872         return readw(addr);
1873 }
1874
1875 static void pci_azx_writeb(u8 value, u8 __iomem *addr)
1876 {
1877         writeb(value, addr);
1878 }
1879
1880 static u8 pci_azx_readb(u8 __iomem *addr)
1881 {
1882         return readb(addr);
1883 }
1884
1885 static int disable_msi_reset_irq(struct azx *chip)
1886 {
1887         struct hdac_bus *bus = azx_bus(chip);
1888         int err;
1889
1890         free_irq(bus->irq, chip);
1891         bus->irq = -1;
1892         pci_disable_msi(chip->pci);
1893         chip->msi = 0;
1894         err = azx_acquire_irq(chip, 1);
1895         if (err < 0)
1896                 return err;
1897
1898         return 0;
1899 }
1900
1901 /* DMA page allocation helpers.  */
1902 static int dma_alloc_pages(struct hdac_bus *bus,
1903                            int type,
1904                            size_t size,
1905                            struct snd_dma_buffer *buf)
1906 {
1907         struct azx *chip = bus_to_azx(bus);
1908         int err;
1909
1910         err = snd_dma_alloc_pages(type,
1911                                   bus->dev,
1912                                   size, buf);
1913         if (err < 0)
1914                 return err;
1915         mark_pages_wc(chip, buf, true);
1916         return 0;
1917 }
1918
1919 static void dma_free_pages(struct hdac_bus *bus, struct snd_dma_buffer *buf)
1920 {
1921         struct azx *chip = bus_to_azx(bus);
1922
1923         mark_pages_wc(chip, buf, false);
1924         snd_dma_free_pages(buf);
1925 }
1926
1927 static int substream_alloc_pages(struct azx *chip,
1928                                  struct snd_pcm_substream *substream,
1929                                  size_t size)
1930 {
1931         struct azx_dev *azx_dev = get_azx_dev(substream);
1932         int ret;
1933
1934         mark_runtime_wc(chip, azx_dev, substream, false);
1935         ret = snd_pcm_lib_malloc_pages(substream, size);
1936         if (ret < 0)
1937                 return ret;
1938         mark_runtime_wc(chip, azx_dev, substream, true);
1939         return 0;
1940 }
1941
1942 static int substream_free_pages(struct azx *chip,
1943                                 struct snd_pcm_substream *substream)
1944 {
1945         struct azx_dev *azx_dev = get_azx_dev(substream);
1946         mark_runtime_wc(chip, azx_dev, substream, false);
1947         return snd_pcm_lib_free_pages(substream);
1948 }
1949
1950 static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
1951                              struct vm_area_struct *area)
1952 {
1953 #ifdef CONFIG_X86
1954         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1955         struct azx *chip = apcm->chip;
1956         if (!azx_snoop(chip) && chip->driver_type != AZX_DRIVER_CMEDIA)
1957                 area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
1958 #endif
1959 }
1960
1961 static const struct hdac_io_ops pci_hda_io_ops = {
1962         .reg_writel = pci_azx_writel,
1963         .reg_readl = pci_azx_readl,
1964         .reg_writew = pci_azx_writew,
1965         .reg_readw = pci_azx_readw,
1966         .reg_writeb = pci_azx_writeb,
1967         .reg_readb = pci_azx_readb,
1968         .dma_alloc_pages = dma_alloc_pages,
1969         .dma_free_pages = dma_free_pages,
1970 };
1971
1972 static const struct hda_controller_ops pci_hda_ops = {
1973         .disable_msi_reset_irq = disable_msi_reset_irq,
1974         .substream_alloc_pages = substream_alloc_pages,
1975         .substream_free_pages = substream_free_pages,
1976         .pcm_mmap_prepare = pcm_mmap_prepare,
1977         .position_check = azx_position_check,
1978         .link_power = azx_intel_link_power,
1979 };
1980
1981 static int azx_probe(struct pci_dev *pci,
1982                      const struct pci_device_id *pci_id)
1983 {
1984         static int dev;
1985         struct snd_card *card;
1986         struct hda_intel *hda;
1987         struct azx *chip;
1988         bool schedule_probe;
1989         int err;
1990
1991         if (dev >= SNDRV_CARDS)
1992                 return -ENODEV;
1993         if (!enable[dev]) {
1994                 dev++;
1995                 return -ENOENT;
1996         }
1997
1998         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1999                            0, &card);
2000         if (err < 0) {
2001                 dev_err(&pci->dev, "Error creating card!\n");
2002                 return err;
2003         }
2004
2005         err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2006         if (err < 0)
2007                 goto out_free;
2008         card->private_data = chip;
2009         hda = container_of(chip, struct hda_intel, chip);
2010
2011         pci_set_drvdata(pci, card);
2012
2013         err = register_vga_switcheroo(chip);
2014         if (err < 0) {
2015                 dev_err(card->dev, "Error registering vga_switcheroo client\n");
2016                 goto out_free;
2017         }
2018
2019         if (check_hdmi_disabled(pci)) {
2020                 dev_info(card->dev, "VGA controller is disabled\n");
2021                 dev_info(card->dev, "Delaying initialization\n");
2022                 chip->disabled = true;
2023         }
2024
2025         schedule_probe = !chip->disabled;
2026
2027 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2028         if (patch[dev] && *patch[dev]) {
2029                 dev_info(card->dev, "Applying patch firmware '%s'\n",
2030                          patch[dev]);
2031                 err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2032                                               &pci->dev, GFP_KERNEL, card,
2033                                               azx_firmware_cb);
2034                 if (err < 0)
2035                         goto out_free;
2036                 schedule_probe = false; /* continued in azx_firmware_cb() */
2037         }
2038 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2039
2040 #ifndef CONFIG_SND_HDA_I915
2041         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
2042                 dev_err(card->dev, "Haswell must build in CONFIG_SND_HDA_I915\n");
2043 #endif
2044
2045         if (schedule_probe)
2046                 schedule_work(&hda->probe_work);
2047
2048         dev++;
2049         if (chip->disabled)
2050                 complete_all(&hda->probe_wait);
2051         return 0;
2052
2053 out_free:
2054         snd_card_free(card);
2055         return err;
2056 }
2057
2058 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2059 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2060         [AZX_DRIVER_NVIDIA] = 8,
2061         [AZX_DRIVER_TERA] = 1,
2062 };
2063
2064 static int azx_probe_continue(struct azx *chip)
2065 {
2066         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2067         struct hdac_bus *bus = azx_bus(chip);
2068         struct pci_dev *pci = chip->pci;
2069         int dev = chip->dev_index;
2070         int err;
2071
2072         hda->probe_continued = 1;
2073
2074         /* Request display power well for the HDA controller or codec. For
2075          * Haswell/Broadwell, both the display HDA controller and codec need
2076          * this power. For other platforms, like Baytrail/Braswell, only the
2077          * display codec needs the power and it can be released after probe.
2078          */
2079         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
2080                 /* HSW/BDW controllers need this power */
2081                 if (CONTROLLER_IN_GPU(pci))
2082                         hda->need_i915_power = 1;
2083
2084                 err = snd_hdac_i915_init(bus);
2085                 if (err < 0) {
2086                         /* if the controller is bound only with HDMI/DP
2087                          * (for HSW and BDW), we need to abort the probe;
2088                          * for other chips, still continue probing as other
2089                          * codecs can be on the same link.
2090                          */
2091                         if (CONTROLLER_IN_GPU(pci))
2092                                 goto out_free;
2093                         else
2094                                 goto skip_i915;
2095                 }
2096
2097                 err = snd_hdac_display_power(bus, true);
2098                 if (err < 0) {
2099                         dev_err(chip->card->dev,
2100                                 "Cannot turn on display power on i915\n");
2101                         goto i915_power_fail;
2102                 }
2103         }
2104
2105  skip_i915:
2106         err = azx_first_init(chip);
2107         if (err < 0)
2108                 goto out_free;
2109
2110 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2111         chip->beep_mode = beep_mode[dev];
2112 #endif
2113
2114         /* create codec instances */
2115         err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2116         if (err < 0)
2117                 goto out_free;
2118
2119 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2120         if (chip->fw) {
2121                 err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2122                                          chip->fw->data);
2123                 if (err < 0)
2124                         goto out_free;
2125 #ifndef CONFIG_PM
2126                 release_firmware(chip->fw); /* no longer needed */
2127                 chip->fw = NULL;
2128 #endif
2129         }
2130 #endif
2131         if ((probe_only[dev] & 1) == 0) {
2132                 err = azx_codec_configure(chip);
2133                 if (err < 0)
2134                         goto out_free;
2135         }
2136
2137         err = snd_card_register(chip->card);
2138         if (err < 0)
2139                 goto out_free;
2140
2141         chip->running = 1;
2142         azx_add_card_list(chip);
2143         snd_hda_set_power_save(&chip->bus, power_save * 1000);
2144         if (azx_has_pm_runtime(chip) || hda->use_vga_switcheroo)
2145                 pm_runtime_put_noidle(&pci->dev);
2146
2147 out_free:
2148         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
2149                 && !hda->need_i915_power)
2150                 snd_hdac_display_power(bus, false);
2151
2152 i915_power_fail:
2153         if (err < 0)
2154                 hda->init_failed = 1;
2155         complete_all(&hda->probe_wait);
2156         return err;
2157 }
2158
2159 static void azx_remove(struct pci_dev *pci)
2160 {
2161         struct snd_card *card = pci_get_drvdata(pci);
2162         struct azx *chip;
2163         struct hda_intel *hda;
2164
2165         if (card) {
2166                 /* cancel the pending probing work */
2167                 chip = card->private_data;
2168                 hda = container_of(chip, struct hda_intel, chip);
2169                 cancel_work_sync(&hda->probe_work);
2170
2171                 snd_card_free(card);
2172         }
2173 }
2174
2175 static void azx_shutdown(struct pci_dev *pci)
2176 {
2177         struct snd_card *card = pci_get_drvdata(pci);
2178         struct azx *chip;
2179
2180         if (!card)
2181                 return;
2182         chip = card->private_data;
2183         if (chip && chip->running)
2184                 azx_stop_chip(chip);
2185 }
2186
2187 /* PCI IDs */
2188 static const struct pci_device_id azx_ids[] = {
2189         /* CPT */
2190         { PCI_DEVICE(0x8086, 0x1c20),
2191           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2192         /* PBG */
2193         { PCI_DEVICE(0x8086, 0x1d20),
2194           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2195         /* Panther Point */
2196         { PCI_DEVICE(0x8086, 0x1e20),
2197           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2198         /* Lynx Point */
2199         { PCI_DEVICE(0x8086, 0x8c20),
2200           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2201         /* 9 Series */
2202         { PCI_DEVICE(0x8086, 0x8ca0),
2203           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2204         /* Wellsburg */
2205         { PCI_DEVICE(0x8086, 0x8d20),
2206           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2207         { PCI_DEVICE(0x8086, 0x8d21),
2208           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2209         /* Lewisburg */
2210         { PCI_DEVICE(0x8086, 0xa1f0),
2211           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2212         { PCI_DEVICE(0x8086, 0xa270),
2213           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2214         /* Lynx Point-LP */
2215         { PCI_DEVICE(0x8086, 0x9c20),
2216           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2217         /* Lynx Point-LP */
2218         { PCI_DEVICE(0x8086, 0x9c21),
2219           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2220         /* Wildcat Point-LP */
2221         { PCI_DEVICE(0x8086, 0x9ca0),
2222           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2223         /* Sunrise Point */
2224         { PCI_DEVICE(0x8086, 0xa170),
2225           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2226         /* Sunrise Point-LP */
2227         { PCI_DEVICE(0x8086, 0x9d70),
2228           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2229         /* Kabylake */
2230         { PCI_DEVICE(0x8086, 0xa171),
2231           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2232         /* Kabylake-LP */
2233         { PCI_DEVICE(0x8086, 0x9d71),
2234           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2235         /* Kabylake-H */
2236         { PCI_DEVICE(0x8086, 0xa2f0),
2237           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2238         /* Broxton-P(Apollolake) */
2239         { PCI_DEVICE(0x8086, 0x5a98),
2240           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BROXTON },
2241         /* Broxton-T */
2242         { PCI_DEVICE(0x8086, 0x1a98),
2243           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BROXTON },
2244         /* Haswell */
2245         { PCI_DEVICE(0x8086, 0x0a0c),
2246           .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2247         { PCI_DEVICE(0x8086, 0x0c0c),
2248           .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2249         { PCI_DEVICE(0x8086, 0x0d0c),
2250           .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2251         /* Broadwell */
2252         { PCI_DEVICE(0x8086, 0x160c),
2253           .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2254         /* 5 Series/3400 */
2255         { PCI_DEVICE(0x8086, 0x3b56),
2256           .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2257         /* Poulsbo */
2258         { PCI_DEVICE(0x8086, 0x811b),
2259           .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2260         /* Oaktrail */
2261         { PCI_DEVICE(0x8086, 0x080a),
2262           .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2263         /* BayTrail */
2264         { PCI_DEVICE(0x8086, 0x0f04),
2265           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2266         /* Braswell */
2267         { PCI_DEVICE(0x8086, 0x2284),
2268           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2269         /* ICH6 */
2270         { PCI_DEVICE(0x8086, 0x2668),
2271           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2272         /* ICH7 */
2273         { PCI_DEVICE(0x8086, 0x27d8),
2274           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2275         /* ESB2 */
2276         { PCI_DEVICE(0x8086, 0x269a),
2277           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2278         /* ICH8 */
2279         { PCI_DEVICE(0x8086, 0x284b),
2280           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2281         /* ICH9 */
2282         { PCI_DEVICE(0x8086, 0x293e),
2283           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2284         /* ICH9 */
2285         { PCI_DEVICE(0x8086, 0x293f),
2286           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2287         /* ICH10 */
2288         { PCI_DEVICE(0x8086, 0x3a3e),
2289           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2290         /* ICH10 */
2291         { PCI_DEVICE(0x8086, 0x3a6e),
2292           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2293         /* Generic Intel */
2294         { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2295           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2296           .class_mask = 0xffffff,
2297           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2298         /* ATI SB 450/600/700/800/900 */
2299         { PCI_DEVICE(0x1002, 0x437b),
2300           .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2301         { PCI_DEVICE(0x1002, 0x4383),
2302           .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2303         /* AMD Hudson */
2304         { PCI_DEVICE(0x1022, 0x780d),
2305           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2306         /* ATI HDMI */
2307         { PCI_DEVICE(0x1002, 0x0002),
2308           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2309         { PCI_DEVICE(0x1002, 0x1308),
2310           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2311         { PCI_DEVICE(0x1002, 0x157a),
2312           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2313         { PCI_DEVICE(0x1002, 0x15b3),
2314           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2315         { PCI_DEVICE(0x1002, 0x793b),
2316           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2317         { PCI_DEVICE(0x1002, 0x7919),
2318           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2319         { PCI_DEVICE(0x1002, 0x960f),
2320           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2321         { PCI_DEVICE(0x1002, 0x970f),
2322           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2323         { PCI_DEVICE(0x1002, 0x9840),
2324           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2325         { PCI_DEVICE(0x1002, 0xaa00),
2326           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2327         { PCI_DEVICE(0x1002, 0xaa08),
2328           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2329         { PCI_DEVICE(0x1002, 0xaa10),
2330           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2331         { PCI_DEVICE(0x1002, 0xaa18),
2332           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2333         { PCI_DEVICE(0x1002, 0xaa20),
2334           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2335         { PCI_DEVICE(0x1002, 0xaa28),
2336           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2337         { PCI_DEVICE(0x1002, 0xaa30),
2338           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2339         { PCI_DEVICE(0x1002, 0xaa38),
2340           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2341         { PCI_DEVICE(0x1002, 0xaa40),
2342           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2343         { PCI_DEVICE(0x1002, 0xaa48),
2344           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2345         { PCI_DEVICE(0x1002, 0xaa50),
2346           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2347         { PCI_DEVICE(0x1002, 0xaa58),
2348           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2349         { PCI_DEVICE(0x1002, 0xaa60),
2350           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2351         { PCI_DEVICE(0x1002, 0xaa68),
2352           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2353         { PCI_DEVICE(0x1002, 0xaa80),
2354           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2355         { PCI_DEVICE(0x1002, 0xaa88),
2356           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2357         { PCI_DEVICE(0x1002, 0xaa90),
2358           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2359         { PCI_DEVICE(0x1002, 0xaa98),
2360           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2361         { PCI_DEVICE(0x1002, 0x9902),
2362           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2363         { PCI_DEVICE(0x1002, 0xaaa0),
2364           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2365         { PCI_DEVICE(0x1002, 0xaaa8),
2366           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2367         { PCI_DEVICE(0x1002, 0xaab0),
2368           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2369         { PCI_DEVICE(0x1002, 0xaac0),
2370           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2371         { PCI_DEVICE(0x1002, 0xaac8),
2372           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2373         { PCI_DEVICE(0x1002, 0xaad8),
2374           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2375         { PCI_DEVICE(0x1002, 0xaae8),
2376           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2377         { PCI_DEVICE(0x1002, 0xaae0),
2378           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2379         { PCI_DEVICE(0x1002, 0xaaf0),
2380           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2381         /* VIA VT8251/VT8237A */
2382         { PCI_DEVICE(0x1106, 0x3288),
2383           .driver_data = AZX_DRIVER_VIA | AZX_DCAPS_POSFIX_VIA },
2384         /* VIA GFX VT7122/VX900 */
2385         { PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2386         /* VIA GFX VT6122/VX11 */
2387         { PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2388         /* SIS966 */
2389         { PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2390         /* ULI M5461 */
2391         { PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2392         /* NVIDIA MCP */
2393         { PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2394           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2395           .class_mask = 0xffffff,
2396           .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2397         /* Teradici */
2398         { PCI_DEVICE(0x6549, 0x1200),
2399           .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2400         { PCI_DEVICE(0x6549, 0x2200),
2401           .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2402         /* Creative X-Fi (CA0110-IBG) */
2403         /* CTHDA chips */
2404         { PCI_DEVICE(0x1102, 0x0010),
2405           .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2406         { PCI_DEVICE(0x1102, 0x0012),
2407           .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2408 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2409         /* the following entry conflicts with snd-ctxfi driver,
2410          * as ctxfi driver mutates from HD-audio to native mode with
2411          * a special command sequence.
2412          */
2413         { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2414           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2415           .class_mask = 0xffffff,
2416           .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2417           AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2418 #else
2419         /* this entry seems still valid -- i.e. without emu20kx chip */
2420         { PCI_DEVICE(0x1102, 0x0009),
2421           .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2422           AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2423 #endif
2424         /* CM8888 */
2425         { PCI_DEVICE(0x13f6, 0x5011),
2426           .driver_data = AZX_DRIVER_CMEDIA |
2427           AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2428         /* Vortex86MX */
2429         { PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2430         /* VMware HDAudio */
2431         { PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2432         /* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2433         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2434           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2435           .class_mask = 0xffffff,
2436           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2437         { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2438           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2439           .class_mask = 0xffffff,
2440           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2441         { 0, }
2442 };
2443 MODULE_DEVICE_TABLE(pci, azx_ids);
2444
2445 /* pci_driver definition */
2446 static struct pci_driver azx_driver = {
2447         .name = KBUILD_MODNAME,
2448         .id_table = azx_ids,
2449         .probe = azx_probe,
2450         .remove = azx_remove,
2451         .shutdown = azx_shutdown,
2452         .driver = {
2453                 .pm = AZX_PM_OPS,
2454         },
2455 };
2456
2457 module_pci_driver(azx_driver);