sound/pci/hda/hda_intel.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *
   4  *  hda_intel.c - Implementation of primary alsa driver code base
   5  *                for Intel HD Audio.
   6  *
   7  *  Copyright(c) 2004 Intel Corporation. All rights reserved.
   8  *
   9  *  Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
  10  *                     PeiSen Hou <pshou@realtek.com.tw>
  11  *
  12  *  CONTACTS:
  13  *
  14  *  Matt Jared          matt.jared@intel.com
  15  *  Andy Kopp           andy.kopp@intel.com
  16  *  Dan Kogan           dan.d.kogan@intel.com
  17  *
  18  *  CHANGES:
  19  *
  20  *  2004.12.01  Major rewrite by tiwai, merged the work of pshou
  21  */
  22
  23 #include <linux/delay.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/kernel.h>
  26 #include <linux/module.h>
  27 #include <linux/dma-mapping.h>
  28 #include <linux/moduleparam.h>
  29 #include <linux/init.h>
  30 #include <linux/slab.h>
  31 #include <linux/pci.h>
  32 #include <linux/mutex.h>
  33 #include <linux/io.h>
  34 #include <linux/pm_runtime.h>
  35 #include <linux/clocksource.h>
  36 #include <linux/time.h>
  37 #include <linux/completion.h>
  38 #include <linux/acpi.h>
  39 #include <linux/pgtable.h>
  40
  41 #ifdef CONFIG_X86
  42 /* for snoop control */
  43 #include <asm/set_memory.h>
  44 #include <asm/cpufeature.h>
  45 #endif
  46 #include <sound/core.h>
  47 #include <sound/initval.h>
  48 #include <sound/hdaudio.h>
  49 #include <sound/hda_i915.h>
  50 #include <sound/intel-dsp-config.h>
  51 #include <linux/vgaarb.h>
  52 #include <linux/vga_switcheroo.h>
  53 #include <linux/apple-gmux.h>
  54 #include <linux/firmware.h>
  55 #include <sound/hda_codec.h>
  56 #include "hda_controller.h"
  57 #include "hda_intel.h"
  58
  59 #define CREATE_TRACE_POINTS
  60 #include "hda_intel_trace.h"
  61
  62 /* position fix mode */
  63 enum {
  64         POS_FIX_AUTO,
  65         POS_FIX_LPIB,
  66         POS_FIX_POSBUF,
  67         POS_FIX_VIACOMBO,
  68         POS_FIX_COMBO,
  69         POS_FIX_SKL,
  70         POS_FIX_FIFO,
  71 };
  72
  73 /* Defines for ATI HD Audio support in SB450 south bridge */
  74 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
  75 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
  76
  77 /* Defines for Nvidia HDA support */
  78 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
  79 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
  80 #define NVIDIA_HDA_ISTRM_COH          0x4d
  81 #define NVIDIA_HDA_OSTRM_COH          0x4c
  82 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
  83
  84 /* Defines for Intel SCH HDA snoop control */
  85 #define INTEL_HDA_CGCTL  0x48
  86 #define INTEL_HDA_CGCTL_MISCBDCGE        (0x1 << 6)
  87 #define INTEL_SCH_HDA_DEVC      0x78
  88 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
  89
  90 /* max number of SDs */
  91 /* ICH, ATI and VIA have 4 playback and 4 capture */
  92 #define ICH6_NUM_CAPTURE        4
  93 #define ICH6_NUM_PLAYBACK       4
  94
  95 /* ULI has 6 playback and 5 capture */
  96 #define ULI_NUM_CAPTURE         5
  97 #define ULI_NUM_PLAYBACK        6
  98
  99 /* ATI HDMI may have up to 8 playbacks and 0 capture */
 100 #define ATIHDMI_NUM_CAPTURE     0
 101 #define ATIHDMI_NUM_PLAYBACK    8
 102
 103
 104 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 105 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 106 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 107 static char *model[SNDRV_CARDS];
 108 static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
 109 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
 110 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
 111 static int probe_only[SNDRV_CARDS];
 112 static int jackpoll_ms[SNDRV_CARDS];
 113 static int single_cmd = -1;
 114 static int enable_msi = -1;
 115 #ifdef CONFIG_SND_HDA_PATCH_LOADER
 116 static char *patch[SNDRV_CARDS];
 117 #endif
 118 #ifdef CONFIG_SND_HDA_INPUT_BEEP
 119 static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
 120                                         CONFIG_SND_HDA_INPUT_BEEP_MODE};
 121 #endif
 122 static bool dmic_detect = 1;
 123 static bool ctl_dev_id = IS_ENABLED(CONFIG_SND_HDA_CTL_DEV_ID) ? 1 : 0;
 124
 125 module_param_array(index, int, NULL, 0444);
 126 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
 127 module_param_array(id, charp, NULL, 0444);
 128 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
 129 module_param_array(enable, bool, NULL, 0444);
 130 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
 131 module_param_array(model, charp, NULL, 0444);
 132 MODULE_PARM_DESC(model, "Use the given board model.");
 133 module_param_array(position_fix, int, NULL, 0444);
 134 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
 135                  "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO, 5 = SKL+, 6 = FIFO).");
 136 module_param_array(bdl_pos_adj, int, NULL, 0644);
 137 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
 138 module_param_array(probe_mask, int, NULL, 0444);
 139 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
 140 module_param_array(probe_only, int, NULL, 0444);
 141 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
 142 module_param_array(jackpoll_ms, int, NULL, 0444);
 143 MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
 144 module_param(single_cmd, bint, 0444);
 145 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
 146                  "(for debugging only).");
 147 module_param(enable_msi, bint, 0444);
 148 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
 149 #ifdef CONFIG_SND_HDA_PATCH_LOADER
 150 module_param_array(patch, charp, NULL, 0444);
 151 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
 152 #endif
 153 #ifdef CONFIG_SND_HDA_INPUT_BEEP
 154 module_param_array(beep_mode, bool, NULL, 0444);
 155 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
 156                             "(0=off, 1=on) (default=1).");
 157 #endif
 158 module_param(dmic_detect, bool, 0444);
 159 MODULE_PARM_DESC(dmic_detect, "Allow DSP driver selection (bypass this driver) "
 160                              "(0=off, 1=on) (default=1); "
 161                  "deprecated, use snd-intel-dspcfg.dsp_driver option instead");
 162 module_param(ctl_dev_id, bool, 0444);
 163 MODULE_PARM_DESC(ctl_dev_id, "Use control device identifier (based on codec address).");
 164
 165 #ifdef CONFIG_PM
 166 static int param_set_xint(const char *val, const struct kernel_param *kp);
 167 static const struct kernel_param_ops param_ops_xint = {
 168         .set = param_set_xint,
 169         .get = param_get_int,
 170 };
 171 #define param_check_xint param_check_int
 172
 173 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
 174 module_param(power_save, xint, 0644);
 175 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
 176                  "(in second, 0 = disable).");
 177
 178 static bool pm_blacklist = true;
 179 module_param(pm_blacklist, bool, 0644);
 180 MODULE_PARM_DESC(pm_blacklist, "Enable power-management denylist");
 181
 182 /* reset the HD-audio controller in power save mode.
 183  * this may give more power-saving, but will take longer time to
 184  * wake up.
 185  */
 186 static bool power_save_controller = 1;
 187 module_param(power_save_controller, bool, 0644);
 188 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
 189 #else
 190 #define power_save      0
 191 #endif /* CONFIG_PM */
 192
 193 static int align_buffer_size = -1;
 194 module_param(align_buffer_size, bint, 0644);
 195 MODULE_PARM_DESC(align_buffer_size,
 196                 "Force buffer and period sizes to be multiple of 128 bytes.");
 197
 198 #ifdef CONFIG_X86
 199 static int hda_snoop = -1;
 200 module_param_named(snoop, hda_snoop, bint, 0444);
 201 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
 202 #else
 203 #define hda_snoop               true
 204 #endif
 205
 206
 207 MODULE_LICENSE("GPL");
 208 MODULE_DESCRIPTION("Intel HDA driver");
 209
 210 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
 211 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
 212 #define SUPPORT_VGA_SWITCHEROO
 213 #endif
 214 #endif
 215
 216
 217 /*
 218  */
 219
 220 /* driver types */
 221 enum {
 222         AZX_DRIVER_ICH,
 223         AZX_DRIVER_PCH,
 224         AZX_DRIVER_SCH,
 225         AZX_DRIVER_SKL,
 226         AZX_DRIVER_HDMI,
 227         AZX_DRIVER_ATI,
 228         AZX_DRIVER_ATIHDMI,
 229         AZX_DRIVER_ATIHDMI_NS,
 230         AZX_DRIVER_GFHDMI,
 231         AZX_DRIVER_VIA,
 232         AZX_DRIVER_SIS,
 233         AZX_DRIVER_ULI,
 234         AZX_DRIVER_NVIDIA,
 235         AZX_DRIVER_TERA,
 236         AZX_DRIVER_CTX,
 237         AZX_DRIVER_CTHDA,
 238         AZX_DRIVER_CMEDIA,
 239         AZX_DRIVER_ZHAOXIN,
 240         AZX_DRIVER_LOONGSON,
 241         AZX_DRIVER_GENERIC,
 242         AZX_NUM_DRIVERS, /* keep this as last entry */
 243 };
 244
 245 #define azx_get_snoop_type(chip) \
 246         (((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
 247 #define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
 248
 249 /* quirks for old Intel chipsets */
 250 #define AZX_DCAPS_INTEL_ICH \
 251         (AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
 252
 253 /* quirks for Intel PCH */
 254 #define AZX_DCAPS_INTEL_PCH_BASE \
 255         (AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
 256          AZX_DCAPS_SNOOP_TYPE(SCH))
 257
 258 /* PCH up to IVB; no runtime PM; bind with i915 gfx */
 259 #define AZX_DCAPS_INTEL_PCH_NOPM \
 260         (AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
 261
 262 /* PCH for HSW/BDW; with runtime PM */
 263 /* no i915 binding for this as HSW/BDW has another controller for HDMI */
 264 #define AZX_DCAPS_INTEL_PCH \
 265         (AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)
 266
 267 /* HSW HDMI */
 268 #define AZX_DCAPS_INTEL_HASWELL \
 269         (/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
 270          AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
 271          AZX_DCAPS_SNOOP_TYPE(SCH))
 272
 273 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
 274 #define AZX_DCAPS_INTEL_BROADWELL \
 275         (/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
 276          AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
 277          AZX_DCAPS_SNOOP_TYPE(SCH))
 278
 279 #define AZX_DCAPS_INTEL_BAYTRAIL \
 280         (AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
 281
 282 #define AZX_DCAPS_INTEL_BRASWELL \
 283         (AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
 284          AZX_DCAPS_I915_COMPONENT)
 285
 286 #define AZX_DCAPS_INTEL_SKYLAKE \
 287         (AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
 288          AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)
 289
 290 #define AZX_DCAPS_INTEL_BROXTON         AZX_DCAPS_INTEL_SKYLAKE
 291
 292 /* quirks for ATI SB / AMD Hudson */
 293 #define AZX_DCAPS_PRESET_ATI_SB \
 294         (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB |\
 295          AZX_DCAPS_SNOOP_TYPE(ATI))
 296
 297 /* quirks for ATI/AMD HDMI */
 298 #define AZX_DCAPS_PRESET_ATI_HDMI \
 299         (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB|\
 300          AZX_DCAPS_NO_MSI64)
 301
 302 /* quirks for ATI HDMI with snoop off */
 303 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
 304         (AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
 305
 306 /* quirks for AMD SB */
 307 #define AZX_DCAPS_PRESET_AMD_SB \
 308         (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
 309          AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME |\
 310          AZX_DCAPS_RETRY_PROBE)
 311
 312 /* quirks for Nvidia */
 313 #define AZX_DCAPS_PRESET_NVIDIA \
 314         (AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
 315          AZX_DCAPS_SNOOP_TYPE(NVIDIA))
 316
 317 #define AZX_DCAPS_PRESET_CTHDA \
 318         (AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
 319          AZX_DCAPS_NO_64BIT |\
 320          AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
 321
 322 /*
 323  * vga_switcheroo support
 324  */
 325 #ifdef SUPPORT_VGA_SWITCHEROO
 326 #define use_vga_switcheroo(chip)        ((chip)->use_vga_switcheroo)
 327 #define needs_eld_notify_link(chip)     ((chip)->bus.keep_power)
 328 #else
 329 #define use_vga_switcheroo(chip)        0
 330 #define needs_eld_notify_link(chip)     false
 331 #endif
 332
 333 static const char * const driver_short_names[] = {
 334         [AZX_DRIVER_ICH] = "HDA Intel",
 335         [AZX_DRIVER_PCH] = "HDA Intel PCH",
 336         [AZX_DRIVER_SCH] = "HDA Intel MID",
 337         [AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
 338         [AZX_DRIVER_HDMI] = "HDA Intel HDMI",
 339         [AZX_DRIVER_ATI] = "HDA ATI SB",
 340         [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
 341         [AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
 342         [AZX_DRIVER_GFHDMI] = "HDA GF HDMI",
 343         [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
 344         [AZX_DRIVER_SIS] = "HDA SIS966",
 345         [AZX_DRIVER_ULI] = "HDA ULI M5461",
 346         [AZX_DRIVER_NVIDIA] = "HDA NVidia",
 347         [AZX_DRIVER_TERA] = "HDA Teradici",
 348         [AZX_DRIVER_CTX] = "HDA Creative",
 349         [AZX_DRIVER_CTHDA] = "HDA Creative",
 350         [AZX_DRIVER_CMEDIA] = "HDA C-Media",
 351         [AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
 352         [AZX_DRIVER_LOONGSON] = "HDA Loongson",
 353         [AZX_DRIVER_GENERIC] = "HD-Audio Generic",
 354 };
 355
 356 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
 357 static void set_default_power_save(struct azx *chip);
 358
 359 /*
 360  * initialize the PCI registers
 361  */
 362 /* update bits in a PCI register byte */
 363 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
 364                             unsigned char mask, unsigned char val)
 365 {
 366         unsigned char data;
 367
 368         pci_read_config_byte(pci, reg, &data);
 369         data &= ~mask;
 370         data |= (val & mask);
 371         pci_write_config_byte(pci, reg, data);
 372 }
 373
 374 static void azx_init_pci(struct azx *chip)
 375 {
 376         int snoop_type = azx_get_snoop_type(chip);
 377
 378         /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
 379          * TCSEL == Traffic Class Select Register, which sets PCI express QOS
 380          * Ensuring these bits are 0 clears playback static on some HD Audio
 381          * codecs.
 382          * The PCI register TCSEL is defined in the Intel manuals.
 383          */
 384         if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
 385                 dev_dbg(chip->card->dev, "Clearing TCSEL\n");
 386                 update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
 387         }
 388
 389         /* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
 390          * we need to enable snoop.
 391          */
 392         if (snoop_type == AZX_SNOOP_TYPE_ATI) {
 393                 dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
 394                         azx_snoop(chip));
 395                 update_pci_byte(chip->pci,
 396                                 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
 397                                 azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
 398         }
 399
 400         /* For NVIDIA HDA, enable snoop */
 401         if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
 402                 dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
 403                         azx_snoop(chip));
 404                 update_pci_byte(chip->pci,
 405                                 NVIDIA_HDA_TRANSREG_ADDR,
 406                                 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
 407                 update_pci_byte(chip->pci,
 408                                 NVIDIA_HDA_ISTRM_COH,
 409                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
 410                 update_pci_byte(chip->pci,
 411                                 NVIDIA_HDA_OSTRM_COH,
 412                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
 413         }
 414
 415         /* Enable SCH/PCH snoop if needed */
 416         if (snoop_type == AZX_SNOOP_TYPE_SCH) {
 417                 unsigned short snoop;
 418                 pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
 419                 if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
 420                     (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
 421                         snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
 422                         if (!azx_snoop(chip))
 423                                 snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
 424                         pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
 425                         pci_read_config_word(chip->pci,
 426                                 INTEL_SCH_HDA_DEVC, &snoop);
 427                 }
 428                 dev_dbg(chip->card->dev, "SCH snoop: %s\n",
 429                         (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
 430                         "Disabled" : "Enabled");
 431         }
 432 }
 433
 434 /*
 435  * In BXT-P A0, HD-Audio DMA requests is later than expected,
 436  * and makes an audio stream sensitive to system latencies when
 437  * 24/32 bits are playing.
 438  * Adjusting threshold of DMA fifo to force the DMA request
 439  * sooner to improve latency tolerance at the expense of power.
 440  */
 441 static void bxt_reduce_dma_latency(struct azx *chip)
 442 {
 443         u32 val;
 444
 445         val = azx_readl(chip, VS_EM4L);
 446         val &= (0x3 << 20);
 447         azx_writel(chip, VS_EM4L, val);
 448 }
 449
 450 /*
 451  * ML_LCAP bits:
 452  *  bit 0: 6 MHz Supported
 453  *  bit 1: 12 MHz Supported
 454  *  bit 2: 24 MHz Supported
 455  *  bit 3: 48 MHz Supported
 456  *  bit 4: 96 MHz Supported
 457  *  bit 5: 192 MHz Supported
 458  */
 459 static int intel_get_lctl_scf(struct azx *chip)
 460 {
 461         struct hdac_bus *bus = azx_bus(chip);
 462         static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
 463         u32 val, t;
 464         int i;
 465
 466         val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
 467
 468         for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
 469                 t = preferred_bits[i];
 470                 if (val & (1 << t))
 471                         return t;
 472         }
 473
 474         dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
 475         return 0;
 476 }
 477
 478 static int intel_ml_lctl_set_power(struct azx *chip, int state)
 479 {
 480         struct hdac_bus *bus = azx_bus(chip);
 481         u32 val;
 482         int timeout;
 483
 484         /*
 485          * Changes to LCTL.SCF are only needed for the first multi-link dealing
 486          * with external codecs
 487          */
 488         val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
 489         val &= ~AZX_ML_LCTL_SPA;
 490         val |= state << AZX_ML_LCTL_SPA_SHIFT;
 491         writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
 492         /* wait for CPA */
 493         timeout = 50;
 494         while (timeout) {
 495                 if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
 496                     AZX_ML_LCTL_CPA) == (state << AZX_ML_LCTL_CPA_SHIFT))
 497                         return 0;
 498                 timeout--;
 499                 udelay(10);
 500         }
 501
 502         return -1;
 503 }
 504
 505 static void intel_init_lctl(struct azx *chip)
 506 {
 507         struct hdac_bus *bus = azx_bus(chip);
 508         u32 val;
 509         int ret;
 510
 511         /* 0. check lctl register value is correct or not */
 512         val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
 513         /* only perform additional configurations if the SCF is initially based on 6MHz */
 514         if ((val & AZX_ML_LCTL_SCF) != 0)
 515                 return;
 516
 517         /*
 518          * Before operating on SPA, CPA must match SPA.
 519          * Any deviation may result in undefined behavior.
 520          */
 521         if (((val & AZX_ML_LCTL_SPA) >> AZX_ML_LCTL_SPA_SHIFT) !=
 522                 ((val & AZX_ML_LCTL_CPA) >> AZX_ML_LCTL_CPA_SHIFT))
 523                 return;
 524
 525         /* 1. turn link down: set SPA to 0 and wait CPA to 0 */
 526         ret = intel_ml_lctl_set_power(chip, 0);
 527         udelay(100);
 528         if (ret)
 529                 goto set_spa;
 530
 531         /* 2. update SCF to select an audio clock different from 6MHz */
 532         val &= ~AZX_ML_LCTL_SCF;
 533         val |= intel_get_lctl_scf(chip);
 534         writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
 535
 536 set_spa:
 537         /* 4. turn link up: set SPA to 1 and wait CPA to 1 */
 538         intel_ml_lctl_set_power(chip, 1);
 539         udelay(100);
 540 }
 541
 542 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
 543 {
 544         struct hdac_bus *bus = azx_bus(chip);
 545         struct pci_dev *pci = chip->pci;
 546         u32 val;
 547
 548         snd_hdac_set_codec_wakeup(bus, true);
 549         if (chip->driver_type == AZX_DRIVER_SKL) {
 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         azx_init_chip(chip, full_reset);
 555         if (chip->driver_type == AZX_DRIVER_SKL) {
 556                 pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
 557                 val = val | INTEL_HDA_CGCTL_MISCBDCGE;
 558                 pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
 559         }
 560
 561         snd_hdac_set_codec_wakeup(bus, false);
 562
 563         /* reduce dma latency to avoid noise */
 564         if (HDA_CONTROLLER_IS_APL(pci))
 565                 bxt_reduce_dma_latency(chip);
 566
 567         if (bus->mlcap != NULL)
 568                 intel_init_lctl(chip);
 569 }
 570
 571 /* calculate runtime delay from LPIB */
 572 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
 573                                    unsigned int pos)
 574 {
 575         struct snd_pcm_substream *substream = azx_dev->core.substream;
 576         int stream = substream->stream;
 577         unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
 578         int delay;
 579
 580         if (stream == SNDRV_PCM_STREAM_PLAYBACK)
 581                 delay = pos - lpib_pos;
 582         else
 583                 delay = lpib_pos - pos;
 584         if (delay < 0) {
 585                 if (delay >= azx_dev->core.delay_negative_threshold)
 586                         delay = 0;
 587                 else
 588                         delay += azx_dev->core.bufsize;
 589         }
 590
 591         if (delay >= azx_dev->core.period_bytes) {
 592                 dev_info(chip->card->dev,
 593                          "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
 594                          delay, azx_dev->core.period_bytes);
 595                 delay = 0;
 596                 chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
 597                 chip->get_delay[stream] = NULL;
 598         }
 599
 600         return bytes_to_frames(substream->runtime, delay);
 601 }
 602
 603 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
 604
 605 /* called from IRQ */
 606 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
 607 {
 608         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 609         int ok;
 610
 611         ok = azx_position_ok(chip, azx_dev);
 612         if (ok == 1) {
 613                 azx_dev->irq_pending = 0;
 614                 return ok;
 615         } else if (ok == 0) {
 616                 /* bogus IRQ, process it later */
 617                 azx_dev->irq_pending = 1;
 618                 schedule_work(&hda->irq_pending_work);
 619         }
 620         return 0;
 621 }
 622
 623 #define display_power(chip, enable) \
 624         snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
 625
 626 /*
 627  * Check whether the current DMA position is acceptable for updating
 628  * periods.  Returns non-zero if it's OK.
 629  *
 630  * Many HD-audio controllers appear pretty inaccurate about
 631  * the update-IRQ timing.  The IRQ is issued before actually the
 632  * data is processed.  So, we need to process it afterwords in a
 633  * workqueue.
 634  *
 635  * Returns 1 if OK to proceed, 0 for delay handling, -1 for skipping update
 636  */
 637 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
 638 {
 639         struct snd_pcm_substream *substream = azx_dev->core.substream;
 640         struct snd_pcm_runtime *runtime = substream->runtime;
 641         int stream = substream->stream;
 642         u32 wallclk;
 643         unsigned int pos;
 644         snd_pcm_uframes_t hwptr, target;
 645
 646         /*
 647          * The value of the WALLCLK register is always 0
 648          * on the Loongson controller, so we return directly.
 649          */
 650         if (chip->driver_type == AZX_DRIVER_LOONGSON)
 651                 return 1;
 652
 653         wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
 654         if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
 655                 return -1;      /* bogus (too early) interrupt */
 656
 657         if (chip->get_position[stream])
 658                 pos = chip->get_position[stream](chip, azx_dev);
 659         else { /* use the position buffer as default */
 660                 pos = azx_get_pos_posbuf(chip, azx_dev);
 661                 if (!pos || pos == (u32)-1) {
 662                         dev_info(chip->card->dev,
 663                                  "Invalid position buffer, using LPIB read method instead.\n");
 664                         chip->get_position[stream] = azx_get_pos_lpib;
 665                         if (chip->get_position[0] == azx_get_pos_lpib &&
 666                             chip->get_position[1] == azx_get_pos_lpib)
 667                                 azx_bus(chip)->use_posbuf = false;
 668                         pos = azx_get_pos_lpib(chip, azx_dev);
 669                         chip->get_delay[stream] = NULL;
 670                 } else {
 671                         chip->get_position[stream] = azx_get_pos_posbuf;
 672                         if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
 673                                 chip->get_delay[stream] = azx_get_delay_from_lpib;
 674                 }
 675         }
 676
 677         if (pos >= azx_dev->core.bufsize)
 678                 pos = 0;
 679
 680         if (WARN_ONCE(!azx_dev->core.period_bytes,
 681                       "hda-intel: zero azx_dev->period_bytes"))
 682                 return -1; /* this shouldn't happen! */
 683         if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
 684             pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
 685                 /* NG - it's below the first next period boundary */
 686                 return chip->bdl_pos_adj ? 0 : -1;
 687         azx_dev->core.start_wallclk += wallclk;
 688
 689         if (azx_dev->core.no_period_wakeup)
 690                 return 1; /* OK, no need to check period boundary */
 691
 692         if (runtime->hw_ptr_base != runtime->hw_ptr_interrupt)
 693                 return 1; /* OK, already in hwptr updating process */
 694
 695         /* check whether the period gets really elapsed */
 696         pos = bytes_to_frames(runtime, pos);
 697         hwptr = runtime->hw_ptr_base + pos;
 698         if (hwptr < runtime->status->hw_ptr)
 699                 hwptr += runtime->buffer_size;
 700         target = runtime->hw_ptr_interrupt + runtime->period_size;
 701         if (hwptr < target) {
 702                 /* too early wakeup, process it later */
 703                 return chip->bdl_pos_adj ? 0 : -1;
 704         }
 705
 706         return 1; /* OK, it's fine */
 707 }
 708
 709 /*
 710  * The work for pending PCM period updates.
 711  */
 712 static void azx_irq_pending_work(struct work_struct *work)
 713 {
 714         struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
 715         struct azx *chip = &hda->chip;
 716         struct hdac_bus *bus = azx_bus(chip);
 717         struct hdac_stream *s;
 718         int pending, ok;
 719
 720         if (!hda->irq_pending_warned) {
 721                 dev_info(chip->card->dev,
 722                          "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
 723                          chip->card->number);
 724                 hda->irq_pending_warned = 1;
 725         }
 726
 727         for (;;) {
 728                 pending = 0;
 729                 spin_lock_irq(&bus->reg_lock);
 730                 list_for_each_entry(s, &bus->stream_list, list) {
 731                         struct azx_dev *azx_dev = stream_to_azx_dev(s);
 732                         if (!azx_dev->irq_pending ||
 733                             !s->substream ||
 734                             !s->running)
 735                                 continue;
 736                         ok = azx_position_ok(chip, azx_dev);
 737                         if (ok > 0) {
 738                                 azx_dev->irq_pending = 0;
 739                                 spin_unlock(&bus->reg_lock);
 740                                 snd_pcm_period_elapsed(s->substream);
 741                                 spin_lock(&bus->reg_lock);
 742                         } else if (ok < 0) {
 743                                 pending = 0;    /* too early */
 744                         } else
 745                                 pending++;
 746                 }
 747                 spin_unlock_irq(&bus->reg_lock);
 748                 if (!pending)
 749                         return;
 750                 msleep(1);
 751         }
 752 }
 753
 754 /* clear irq_pending flags and assure no on-going workq */
 755 static void azx_clear_irq_pending(struct azx *chip)
 756 {
 757         struct hdac_bus *bus = azx_bus(chip);
 758         struct hdac_stream *s;
 759
 760         spin_lock_irq(&bus->reg_lock);
 761         list_for_each_entry(s, &bus->stream_list, list) {
 762                 struct azx_dev *azx_dev = stream_to_azx_dev(s);
 763                 azx_dev->irq_pending = 0;
 764         }
 765         spin_unlock_irq(&bus->reg_lock);
 766 }
 767
 768 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
 769 {
 770         struct hdac_bus *bus = azx_bus(chip);
 771
 772         if (request_irq(chip->pci->irq, azx_interrupt,
 773                         chip->msi ? 0 : IRQF_SHARED,
 774                         chip->card->irq_descr, chip)) {
 775                 dev_err(chip->card->dev,
 776                         "unable to grab IRQ %d, disabling device\n",
 777                         chip->pci->irq);
 778                 if (do_disconnect)
 779                         snd_card_disconnect(chip->card);
 780                 return -1;
 781         }
 782         bus->irq = chip->pci->irq;
 783         chip->card->sync_irq = bus->irq;
 784         pci_intx(chip->pci, !chip->msi);
 785         return 0;
 786 }
 787
 788 /* get the current DMA position with correction on VIA chips */
 789 static unsigned int azx_via_get_position(struct azx *chip,
 790                                          struct azx_dev *azx_dev)
 791 {
 792         unsigned int link_pos, mini_pos, bound_pos;
 793         unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
 794         unsigned int fifo_size;
 795
 796         link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
 797         if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 798                 /* Playback, no problem using link position */
 799                 return link_pos;
 800         }
 801
 802         /* Capture */
 803         /* For new chipset,
 804          * use mod to get the DMA position just like old chipset
 805          */
 806         mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
 807         mod_dma_pos %= azx_dev->core.period_bytes;
 808
 809         fifo_size = azx_stream(azx_dev)->fifo_size;
 810
 811         if (azx_dev->insufficient) {
 812                 /* Link position never gather than FIFO size */
 813                 if (link_pos <= fifo_size)
 814                         return 0;
 815
 816                 azx_dev->insufficient = 0;
 817         }
 818
 819         if (link_pos <= fifo_size)
 820                 mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
 821         else
 822                 mini_pos = link_pos - fifo_size;
 823
 824         /* Find nearest previous boudary */
 825         mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
 826         mod_link_pos = link_pos % azx_dev->core.period_bytes;
 827         if (mod_link_pos >= fifo_size)
 828                 bound_pos = link_pos - mod_link_pos;
 829         else if (mod_dma_pos >= mod_mini_pos)
 830                 bound_pos = mini_pos - mod_mini_pos;
 831         else {
 832                 bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
 833                 if (bound_pos >= azx_dev->core.bufsize)
 834                         bound_pos = 0;
 835         }
 836
 837         /* Calculate real DMA position we want */
 838         return bound_pos + mod_dma_pos;
 839 }
 840
 841 #define AMD_FIFO_SIZE   32
 842
 843 /* get the current DMA position with FIFO size correction */
 844 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
 845 {
 846         struct snd_pcm_substream *substream = azx_dev->core.substream;
 847         struct snd_pcm_runtime *runtime = substream->runtime;
 848         unsigned int pos, delay;
 849
 850         pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
 851         if (!runtime)
 852                 return pos;
 853
 854         runtime->delay = AMD_FIFO_SIZE;
 855         delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
 856         if (azx_dev->insufficient) {
 857                 if (pos < delay) {
 858                         delay = pos;
 859                         runtime->delay = bytes_to_frames(runtime, pos);
 860                 } else {
 861                         azx_dev->insufficient = 0;
 862                 }
 863         }
 864
 865         /* correct the DMA position for capture stream */
 866         if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
 867                 if (pos < delay)
 868                         pos += azx_dev->core.bufsize;
 869                 pos -= delay;
 870         }
 871
 872         return pos;
 873 }
 874
 875 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
 876                                    unsigned int pos)
 877 {
 878         struct snd_pcm_substream *substream = azx_dev->core.substream;
 879
 880         /* just read back the calculated value in the above */
 881         return substream->runtime->delay;
 882 }
 883
 884 static void __azx_shutdown_chip(struct azx *chip, bool skip_link_reset)
 885 {
 886         azx_stop_chip(chip);
 887         if (!skip_link_reset)
 888                 azx_enter_link_reset(chip);
 889         azx_clear_irq_pending(chip);
 890         display_power(chip, false);
 891 }
 892
 893 #ifdef CONFIG_PM
 894 static DEFINE_MUTEX(card_list_lock);
 895 static LIST_HEAD(card_list);
 896
 897 static void azx_shutdown_chip(struct azx *chip)
 898 {
 899         __azx_shutdown_chip(chip, false);
 900 }
 901
 902 static void azx_add_card_list(struct azx *chip)
 903 {
 904         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 905         mutex_lock(&card_list_lock);
 906         list_add(&hda->list, &card_list);
 907         mutex_unlock(&card_list_lock);
 908 }
 909
 910 static void azx_del_card_list(struct azx *chip)
 911 {
 912         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 913         mutex_lock(&card_list_lock);
 914         list_del_init(&hda->list);
 915         mutex_unlock(&card_list_lock);
 916 }
 917
 918 /* trigger power-save check at writing parameter */
 919 static int param_set_xint(const char *val, const struct kernel_param *kp)
 920 {
 921         struct hda_intel *hda;
 922         struct azx *chip;
 923         int prev = power_save;
 924         int ret = param_set_int(val, kp);
 925
 926         if (ret || prev == power_save)
 927                 return ret;
 928
 929         mutex_lock(&card_list_lock);
 930         list_for_each_entry(hda, &card_list, list) {
 931                 chip = &hda->chip;
 932                 if (!hda->probe_continued || chip->disabled)
 933                         continue;
 934                 snd_hda_set_power_save(&chip->bus, power_save * 1000);
 935         }
 936         mutex_unlock(&card_list_lock);
 937         return 0;
 938 }
 939
 940 /*
 941  * power management
 942  */
 943 static bool azx_is_pm_ready(struct snd_card *card)
 944 {
 945         struct azx *chip;
 946         struct hda_intel *hda;
 947
 948         if (!card)
 949                 return false;
 950         chip = card->private_data;
 951         hda = container_of(chip, struct hda_intel, chip);
 952         if (chip->disabled || hda->init_failed || !chip->running)
 953                 return false;
 954         return true;
 955 }
 956
 957 static void __azx_runtime_resume(struct azx *chip)
 958 {
 959         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 960         struct hdac_bus *bus = azx_bus(chip);
 961         struct hda_codec *codec;
 962         int status;
 963
 964         display_power(chip, true);
 965         if (hda->need_i915_power)
 966                 snd_hdac_i915_set_bclk(bus);
 967
 968         /* Read STATESTS before controller reset */
 969         status = azx_readw(chip, STATESTS);
 970
 971         azx_init_pci(chip);
 972         hda_intel_init_chip(chip, true);
 973
 974         /* Avoid codec resume if runtime resume is for system suspend */
 975         if (!chip->pm_prepared) {
 976                 list_for_each_codec(codec, &chip->bus) {
 977                         if (codec->relaxed_resume)
 978                                 continue;
 979
 980                         if (codec->forced_resume || (status & (1 << codec->addr)))
 981                                 pm_request_resume(hda_codec_dev(codec));
 982                 }
 983         }
 984
 985         /* power down again for link-controlled chips */
 986         if (!hda->need_i915_power)
 987                 display_power(chip, false);
 988 }
 989
 990 #ifdef CONFIG_PM_SLEEP
 991 static int azx_prepare(struct device *dev)
 992 {
 993         struct snd_card *card = dev_get_drvdata(dev);
 994         struct azx *chip;
 995
 996         if (!azx_is_pm_ready(card))
 997                 return 0;
 998
 999         chip = card->private_data;
1000         chip->pm_prepared = 1;
1001         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1002
1003         flush_work(&azx_bus(chip)->unsol_work);
1004
1005         /* HDA controller always requires different WAKEEN for runtime suspend
1006          * and system suspend, so don't use direct-complete here.
1007          */
1008         return 0;
1009 }
1010
1011 static void azx_complete(struct device *dev)
1012 {
1013         struct snd_card *card = dev_get_drvdata(dev);
1014         struct azx *chip;
1015
1016         if (!azx_is_pm_ready(card))
1017                 return;
1018
1019         chip = card->private_data;
1020         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1021         chip->pm_prepared = 0;
1022 }
1023
1024 static int azx_suspend(struct device *dev)
1025 {
1026         struct snd_card *card = dev_get_drvdata(dev);
1027         struct azx *chip;
1028         struct hdac_bus *bus;
1029
1030         if (!azx_is_pm_ready(card))
1031                 return 0;
1032
1033         chip = card->private_data;
1034         bus = azx_bus(chip);
1035         azx_shutdown_chip(chip);
1036         if (bus->irq >= 0) {
1037                 free_irq(bus->irq, chip);
1038                 bus->irq = -1;
1039                 chip->card->sync_irq = -1;
1040         }
1041
1042         if (chip->msi)
1043                 pci_disable_msi(chip->pci);
1044
1045         trace_azx_suspend(chip);
1046         return 0;
1047 }
1048
1049 static int azx_resume(struct device *dev)
1050 {
1051         struct snd_card *card = dev_get_drvdata(dev);
1052         struct azx *chip;
1053
1054         if (!azx_is_pm_ready(card))
1055                 return 0;
1056
1057         chip = card->private_data;
1058         if (chip->msi)
1059                 if (pci_enable_msi(chip->pci) < 0)
1060                         chip->msi = 0;
1061         if (azx_acquire_irq(chip, 1) < 0)
1062                 return -EIO;
1063
1064         __azx_runtime_resume(chip);
1065
1066         trace_azx_resume(chip);
1067         return 0;
1068 }
1069
1070 /* put codec down to D3 at hibernation for Intel SKL+;
1071  * otherwise BIOS may still access the codec and screw up the driver
1072  */
1073 static int azx_freeze_noirq(struct device *dev)
1074 {
1075         struct snd_card *card = dev_get_drvdata(dev);
1076         struct azx *chip = card->private_data;
1077         struct pci_dev *pci = to_pci_dev(dev);
1078
1079         if (!azx_is_pm_ready(card))
1080                 return 0;
1081         if (chip->driver_type == AZX_DRIVER_SKL)
1082                 pci_set_power_state(pci, PCI_D3hot);
1083
1084         return 0;
1085 }
1086
1087 static int azx_thaw_noirq(struct device *dev)
1088 {
1089         struct snd_card *card = dev_get_drvdata(dev);
1090         struct azx *chip = card->private_data;
1091         struct pci_dev *pci = to_pci_dev(dev);
1092
1093         if (!azx_is_pm_ready(card))
1094                 return 0;
1095         if (chip->driver_type == AZX_DRIVER_SKL)
1096                 pci_set_power_state(pci, PCI_D0);
1097
1098         return 0;
1099 }
1100 #endif /* CONFIG_PM_SLEEP */
1101
1102 static int azx_runtime_suspend(struct device *dev)
1103 {
1104         struct snd_card *card = dev_get_drvdata(dev);
1105         struct azx *chip;
1106
1107         if (!azx_is_pm_ready(card))
1108                 return 0;
1109         chip = card->private_data;
1110
1111         /* enable controller wake up event */
1112         azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) | STATESTS_INT_MASK);
1113
1114         azx_shutdown_chip(chip);
1115         trace_azx_runtime_suspend(chip);
1116         return 0;
1117 }
1118
1119 static int azx_runtime_resume(struct device *dev)
1120 {
1121         struct snd_card *card = dev_get_drvdata(dev);
1122         struct azx *chip;
1123
1124         if (!azx_is_pm_ready(card))
1125                 return 0;
1126         chip = card->private_data;
1127         __azx_runtime_resume(chip);
1128
1129         /* disable controller Wake Up event*/
1130         azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) & ~STATESTS_INT_MASK);
1131
1132         trace_azx_runtime_resume(chip);
1133         return 0;
1134 }
1135
1136 static int azx_runtime_idle(struct device *dev)
1137 {
1138         struct snd_card *card = dev_get_drvdata(dev);
1139         struct azx *chip;
1140         struct hda_intel *hda;
1141
1142         if (!card)
1143                 return 0;
1144
1145         chip = card->private_data;
1146         hda = container_of(chip, struct hda_intel, chip);
1147         if (chip->disabled || hda->init_failed)
1148                 return 0;
1149
1150         if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1151             azx_bus(chip)->codec_powered || !chip->running)
1152                 return -EBUSY;
1153
1154         /* ELD notification gets broken when HD-audio bus is off */
1155         if (needs_eld_notify_link(chip))
1156                 return -EBUSY;
1157
1158         return 0;
1159 }
1160
1161 static const struct dev_pm_ops azx_pm = {
1162         SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1163 #ifdef CONFIG_PM_SLEEP
1164         .prepare = azx_prepare,
1165         .complete = azx_complete,
1166         .freeze_noirq = azx_freeze_noirq,
1167         .thaw_noirq = azx_thaw_noirq,
1168 #endif
1169         SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1170 };
1171
1172 #define AZX_PM_OPS      &azx_pm
1173 #else
1174 #define azx_add_card_list(chip) /* NOP */
1175 #define azx_del_card_list(chip) /* NOP */
1176 #define AZX_PM_OPS      NULL
1177 #endif /* CONFIG_PM */
1178
1179
1180 static int azx_probe_continue(struct azx *chip);
1181
1182 #ifdef SUPPORT_VGA_SWITCHEROO
1183 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1184
1185 static void azx_vs_set_state(struct pci_dev *pci,
1186                              enum vga_switcheroo_state state)
1187 {
1188         struct snd_card *card = pci_get_drvdata(pci);
1189         struct azx *chip = card->private_data;
1190         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1191         struct hda_codec *codec;
1192         bool disabled;
1193
1194         wait_for_completion(&hda->probe_wait);
1195         if (hda->init_failed)
1196                 return;
1197
1198         disabled = (state == VGA_SWITCHEROO_OFF);
1199         if (chip->disabled == disabled)
1200                 return;
1201
1202         if (!hda->probe_continued) {
1203                 chip->disabled = disabled;
1204                 if (!disabled) {
1205                         dev_info(chip->card->dev,
1206                                  "Start delayed initialization\n");
1207                         if (azx_probe_continue(chip) < 0)
1208                                 dev_err(chip->card->dev, "initialization error\n");
1209                 }
1210         } else {
1211                 dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1212                          disabled ? "Disabling" : "Enabling");
1213                 if (disabled) {
1214                         list_for_each_codec(codec, &chip->bus) {
1215                                 pm_runtime_suspend(hda_codec_dev(codec));
1216                                 pm_runtime_disable(hda_codec_dev(codec));
1217                         }
1218                         pm_runtime_suspend(card->dev);
1219                         pm_runtime_disable(card->dev);
1220                         /* when we get suspended by vga_switcheroo we end up in D3cold,
1221                          * however we have no ACPI handle, so pci/acpi can't put us there,
1222                          * put ourselves there */
1223                         pci->current_state = PCI_D3cold;
1224                         chip->disabled = true;
1225                         if (snd_hda_lock_devices(&chip->bus))
1226                                 dev_warn(chip->card->dev,
1227                                          "Cannot lock devices!\n");
1228                 } else {
1229                         snd_hda_unlock_devices(&chip->bus);
1230                         chip->disabled = false;
1231                         pm_runtime_enable(card->dev);
1232                         list_for_each_codec(codec, &chip->bus) {
1233                                 pm_runtime_enable(hda_codec_dev(codec));
1234                                 pm_runtime_resume(hda_codec_dev(codec));
1235                         }
1236                 }
1237         }
1238 }
1239
1240 static bool azx_vs_can_switch(struct pci_dev *pci)
1241 {
1242         struct snd_card *card = pci_get_drvdata(pci);
1243         struct azx *chip = card->private_data;
1244         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1245
1246         wait_for_completion(&hda->probe_wait);
1247         if (hda->init_failed)
1248                 return false;
1249         if (chip->disabled || !hda->probe_continued)
1250                 return true;
1251         if (snd_hda_lock_devices(&chip->bus))
1252                 return false;
1253         snd_hda_unlock_devices(&chip->bus);
1254         return true;
1255 }
1256
1257 /*
1258  * The discrete GPU cannot power down unless the HDA controller runtime
1259  * suspends, so activate runtime PM on codecs even if power_save == 0.
1260  */
1261 static void setup_vga_switcheroo_runtime_pm(struct azx *chip)
1262 {
1263         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1264         struct hda_codec *codec;
1265
1266         if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
1267                 list_for_each_codec(codec, &chip->bus)
1268                         codec->auto_runtime_pm = 1;
1269                 /* reset the power save setup */
1270                 if (chip->running)
1271                         set_default_power_save(chip);
1272         }
1273 }
1274
1275 static void azx_vs_gpu_bound(struct pci_dev *pci,
1276                              enum vga_switcheroo_client_id client_id)
1277 {
1278         struct snd_card *card = pci_get_drvdata(pci);
1279         struct azx *chip = card->private_data;
1280
1281         if (client_id == VGA_SWITCHEROO_DIS)
1282                 chip->bus.keep_power = 0;
1283         setup_vga_switcheroo_runtime_pm(chip);
1284 }
1285
1286 static void init_vga_switcheroo(struct azx *chip)
1287 {
1288         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1289         struct pci_dev *p = get_bound_vga(chip->pci);
1290         struct pci_dev *parent;
1291         if (p) {
1292                 dev_info(chip->card->dev,
1293                          "Handle vga_switcheroo audio client\n");
1294                 hda->use_vga_switcheroo = 1;
1295
1296                 /* cleared in either gpu_bound op or codec probe, or when its
1297                  * upstream port has _PR3 (i.e. dGPU).
1298                  */
1299                 parent = pci_upstream_bridge(p);
1300                 chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
1301                 chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
1302                 pci_dev_put(p);
1303         }
1304 }
1305
1306 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1307         .set_gpu_state = azx_vs_set_state,
1308         .can_switch = azx_vs_can_switch,
1309         .gpu_bound = azx_vs_gpu_bound,
1310 };
1311
1312 static int register_vga_switcheroo(struct azx *chip)
1313 {
1314         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1315         struct pci_dev *p;
1316         int err;
1317
1318         if (!hda->use_vga_switcheroo)
1319                 return 0;
1320
1321         p = get_bound_vga(chip->pci);
1322         err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
1323         pci_dev_put(p);
1324
1325         if (err < 0)
1326                 return err;
1327         hda->vga_switcheroo_registered = 1;
1328
1329         return 0;
1330 }
1331 #else
1332 #define init_vga_switcheroo(chip)               /* NOP */
1333 #define register_vga_switcheroo(chip)           0
1334 #define check_hdmi_disabled(pci)        false
1335 #define setup_vga_switcheroo_runtime_pm(chip)   /* NOP */
1336 #endif /* SUPPORT_VGA_SWITCHER */
1337
1338 /*
1339  * destructor
1340  */
1341 static void azx_free(struct azx *chip)
1342 {
1343         struct pci_dev *pci = chip->pci;
1344         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1345         struct hdac_bus *bus = azx_bus(chip);
1346
1347         if (hda->freed)
1348                 return;
1349
1350         if (azx_has_pm_runtime(chip) && chip->running) {
1351                 pm_runtime_get_noresume(&pci->dev);
1352                 pm_runtime_forbid(&pci->dev);
1353                 pm_runtime_dont_use_autosuspend(&pci->dev);
1354         }
1355
1356         chip->running = 0;
1357
1358         azx_del_card_list(chip);
1359
1360         hda->init_failed = 1; /* to be sure */
1361         complete_all(&hda->probe_wait);
1362
1363         if (use_vga_switcheroo(hda)) {
1364                 if (chip->disabled && hda->probe_continued)
1365                         snd_hda_unlock_devices(&chip->bus);
1366                 if (hda->vga_switcheroo_registered)
1367                         vga_switcheroo_unregister_client(chip->pci);
1368         }
1369
1370         if (bus->chip_init) {
1371                 azx_clear_irq_pending(chip);
1372                 azx_stop_all_streams(chip);
1373                 azx_stop_chip(chip);
1374         }
1375
1376         if (bus->irq >= 0)
1377                 free_irq(bus->irq, (void*)chip);
1378
1379         azx_free_stream_pages(chip);
1380         azx_free_streams(chip);
1381         snd_hdac_bus_exit(bus);
1382
1383 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1384         release_firmware(chip->fw);
1385 #endif
1386         display_power(chip, false);
1387
1388         if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
1389                 snd_hdac_i915_exit(bus);
1390
1391         hda->freed = 1;
1392 }
1393
1394 static int azx_dev_disconnect(struct snd_device *device)
1395 {
1396         struct azx *chip = device->device_data;
1397         struct hdac_bus *bus = azx_bus(chip);
1398
1399         chip->bus.shutdown = 1;
1400         cancel_work_sync(&bus->unsol_work);
1401
1402         return 0;
1403 }
1404
1405 static int azx_dev_free(struct snd_device *device)
1406 {
1407         azx_free(device->device_data);
1408         return 0;
1409 }
1410
1411 #ifdef SUPPORT_VGA_SWITCHEROO
1412 #ifdef CONFIG_ACPI
1413 /* ATPX is in the integrated GPU's namespace */
1414 static bool atpx_present(void)
1415 {
1416         struct pci_dev *pdev = NULL;
1417         acpi_handle dhandle, atpx_handle;
1418         acpi_status status;
1419
1420         while ((pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev))) {
1421                 if ((pdev->class != PCI_CLASS_DISPLAY_VGA << 8) &&
1422                     (pdev->class != PCI_CLASS_DISPLAY_OTHER << 8))
1423                         continue;
1424
1425                 dhandle = ACPI_HANDLE(&pdev->dev);
1426                 if (dhandle) {
1427                         status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1428                         if (ACPI_SUCCESS(status)) {
1429                                 pci_dev_put(pdev);
1430                                 return true;
1431                         }
1432                 }
1433         }
1434         return false;
1435 }
1436 #else
1437 static bool atpx_present(void)
1438 {
1439         return false;
1440 }
1441 #endif
1442
1443 /*
1444  * Check of disabled HDMI controller by vga_switcheroo
1445  */
1446 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1447 {
1448         struct pci_dev *p;
1449
1450         /* check only discrete GPU */
1451         switch (pci->vendor) {
1452         case PCI_VENDOR_ID_ATI:
1453         case PCI_VENDOR_ID_AMD:
1454                 if (pci->devfn == 1) {
1455                         p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1456                                                         pci->bus->number, 0);
1457                         if (p) {
1458                                 /* ATPX is in the integrated GPU's ACPI namespace
1459                                  * rather than the dGPU's namespace. However,
1460                                  * the dGPU is the one who is involved in
1461                                  * vgaswitcheroo.
1462                                  */
1463                                 if (((p->class >> 16) == PCI_BASE_CLASS_DISPLAY) &&
1464                                     (atpx_present() || apple_gmux_detect(NULL, NULL)))
1465                                         return p;
1466                                 pci_dev_put(p);
1467                         }
1468                 }
1469                 break;
1470         case PCI_VENDOR_ID_NVIDIA:
1471                 if (pci->devfn == 1) {
1472                         p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1473                                                         pci->bus->number, 0);
1474                         if (p) {
1475                                 if ((p->class >> 16) == PCI_BASE_CLASS_DISPLAY)
1476                                         return p;
1477                                 pci_dev_put(p);
1478                         }
1479                 }
1480                 break;
1481         }
1482         return NULL;
1483 }
1484
1485 static bool check_hdmi_disabled(struct pci_dev *pci)
1486 {
1487         bool vga_inactive = false;
1488         struct pci_dev *p = get_bound_vga(pci);
1489
1490         if (p) {
1491                 if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1492                         vga_inactive = true;
1493                 pci_dev_put(p);
1494         }
1495         return vga_inactive;
1496 }
1497 #endif /* SUPPORT_VGA_SWITCHEROO */
1498
1499 /*
1500  * allow/deny-listing for position_fix
1501  */
1502 static const struct snd_pci_quirk position_fix_list[] = {
1503         SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1504         SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1505         SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1506         SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1507         SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1508         SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1509         SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1510         SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1511         SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1512         SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1513         SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1514         SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1515         SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1516         SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1517         {}
1518 };
1519
1520 static int check_position_fix(struct azx *chip, int fix)
1521 {
1522         const struct snd_pci_quirk *q;
1523
1524         switch (fix) {
1525         case POS_FIX_AUTO:
1526         case POS_FIX_LPIB:
1527         case POS_FIX_POSBUF:
1528         case POS_FIX_VIACOMBO:
1529         case POS_FIX_COMBO:
1530         case POS_FIX_SKL:
1531         case POS_FIX_FIFO:
1532                 return fix;
1533         }
1534
1535         q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1536         if (q) {
1537                 dev_info(chip->card->dev,
1538                          "position_fix set to %d for device %04x:%04x\n",
1539                          q->value, q->subvendor, q->subdevice);
1540                 return q->value;
1541         }
1542
1543         /* Check VIA/ATI HD Audio Controller exist */
1544         if (chip->driver_type == AZX_DRIVER_VIA) {
1545                 dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1546                 return POS_FIX_VIACOMBO;
1547         }
1548         if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1549                 dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1550                 return POS_FIX_FIFO;
1551         }
1552         if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1553                 dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1554                 return POS_FIX_LPIB;
1555         }
1556         if (chip->driver_type == AZX_DRIVER_SKL) {
1557                 dev_dbg(chip->card->dev, "Using SKL position fix\n");
1558                 return POS_FIX_SKL;
1559         }
1560         return POS_FIX_AUTO;
1561 }
1562
1563 static void assign_position_fix(struct azx *chip, int fix)
1564 {
1565         static const azx_get_pos_callback_t callbacks[] = {
1566                 [POS_FIX_AUTO] = NULL,
1567                 [POS_FIX_LPIB] = azx_get_pos_lpib,
1568                 [POS_FIX_POSBUF] = azx_get_pos_posbuf,
1569                 [POS_FIX_VIACOMBO] = azx_via_get_position,
1570                 [POS_FIX_COMBO] = azx_get_pos_lpib,
1571                 [POS_FIX_SKL] = azx_get_pos_posbuf,
1572                 [POS_FIX_FIFO] = azx_get_pos_fifo,
1573         };
1574
1575         chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1576
1577         /* combo mode uses LPIB only for playback */
1578         if (fix == POS_FIX_COMBO)
1579                 chip->get_position[1] = NULL;
1580
1581         if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1582             (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1583                 chip->get_delay[0] = chip->get_delay[1] =
1584                         azx_get_delay_from_lpib;
1585         }
1586
1587         if (fix == POS_FIX_FIFO)
1588                 chip->get_delay[0] = chip->get_delay[1] =
1589                         azx_get_delay_from_fifo;
1590 }
1591
1592 /*
1593  * deny-lists for probe_mask
1594  */
1595 static const struct snd_pci_quirk probe_mask_list[] = {
1596         /* Thinkpad often breaks the controller communication when accessing
1597          * to the non-working (or non-existing) modem codec slot.
1598          */
1599         SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1600         SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1601         SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1602         /* broken BIOS */
1603         SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1604         /* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1605         SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1606         /* forced codec slots */
1607         SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1608         SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1609         SND_PCI_QUIRK(0x1558, 0x0351, "Schenker Dock 15", 0x105),
1610         /* WinFast VP200 H (Teradici) user reported broken communication */
1611         SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1612         {}
1613 };
1614
1615 #define AZX_FORCE_CODEC_MASK    0x100
1616
1617 static void check_probe_mask(struct azx *chip, int dev)
1618 {
1619         const struct snd_pci_quirk *q;
1620
1621         chip->codec_probe_mask = probe_mask[dev];
1622         if (chip->codec_probe_mask == -1) {
1623                 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1624                 if (q) {
1625                         dev_info(chip->card->dev,
1626                                  "probe_mask set to 0x%x for device %04x:%04x\n",
1627                                  q->value, q->subvendor, q->subdevice);
1628                         chip->codec_probe_mask = q->value;
1629                 }
1630         }
1631
1632         /* check forced option */
1633         if (chip->codec_probe_mask != -1 &&
1634             (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1635                 azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1636                 dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1637                          (int)azx_bus(chip)->codec_mask);
1638         }
1639 }
1640
1641 /*
1642  * allow/deny-list for enable_msi
1643  */
1644 static const struct snd_pci_quirk msi_deny_list[] = {
1645         SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1646         SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1647         SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1648         SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1649         SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1650         SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1651         SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1652         SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1653         SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1654         SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1655         {}
1656 };
1657
1658 static void check_msi(struct azx *chip)
1659 {
1660         const struct snd_pci_quirk *q;
1661
1662         if (enable_msi >= 0) {
1663                 chip->msi = !!enable_msi;
1664                 return;
1665         }
1666         chip->msi = 1;  /* enable MSI as default */
1667         q = snd_pci_quirk_lookup(chip->pci, msi_deny_list);
1668         if (q) {
1669                 dev_info(chip->card->dev,
1670                          "msi for device %04x:%04x set to %d\n",
1671                          q->subvendor, q->subdevice, q->value);
1672                 chip->msi = q->value;
1673                 return;
1674         }
1675
1676         /* NVidia chipsets seem to cause troubles with MSI */
1677         if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1678                 dev_info(chip->card->dev, "Disabling MSI\n");
1679                 chip->msi = 0;
1680         }
1681 }
1682
1683 /* check the snoop mode availability */
1684 static void azx_check_snoop_available(struct azx *chip)
1685 {
1686         int snoop = hda_snoop;
1687
1688         if (snoop >= 0) {
1689                 dev_info(chip->card->dev, "Force to %s mode by module option\n",
1690                          snoop ? "snoop" : "non-snoop");
1691                 chip->snoop = snoop;
1692                 chip->uc_buffer = !snoop;
1693                 return;
1694         }
1695
1696         snoop = true;
1697         if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1698             chip->driver_type == AZX_DRIVER_VIA) {
1699                 /* force to non-snoop mode for a new VIA controller
1700                  * when BIOS is set
1701                  */
1702                 u8 val;
1703                 pci_read_config_byte(chip->pci, 0x42, &val);
1704                 if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1705                                       chip->pci->revision == 0x20))
1706                         snoop = false;
1707         }
1708
1709         if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1710                 snoop = false;
1711
1712         chip->snoop = snoop;
1713         if (!snoop) {
1714                 dev_info(chip->card->dev, "Force to non-snoop mode\n");
1715                 /* C-Media requires non-cached pages only for CORB/RIRB */
1716                 if (chip->driver_type != AZX_DRIVER_CMEDIA)
1717                         chip->uc_buffer = true;
1718         }
1719 }
1720
1721 static void azx_probe_work(struct work_struct *work)
1722 {
1723         struct hda_intel *hda = container_of(work, struct hda_intel, probe_work.work);
1724         azx_probe_continue(&hda->chip);
1725 }
1726
1727 static int default_bdl_pos_adj(struct azx *chip)
1728 {
1729         /* some exceptions: Atoms seem problematic with value 1 */
1730         if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1731                 switch (chip->pci->device) {
1732                 case 0x0f04: /* Baytrail */
1733                 case 0x2284: /* Braswell */
1734                         return 32;
1735                 }
1736         }
1737
1738         switch (chip->driver_type) {
1739         /*
1740          * increase the bdl size for Glenfly Gpus for hardware
1741          * limitation on hdac interrupt interval
1742          */
1743         case AZX_DRIVER_GFHDMI:
1744                 return 128;
1745         case AZX_DRIVER_ICH:
1746         case AZX_DRIVER_PCH:
1747                 return 1;
1748         default:
1749                 return 32;
1750         }
1751 }
1752
1753 /*
1754  * constructor
1755  */
1756 static const struct hda_controller_ops pci_hda_ops;
1757
1758 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1759                       int dev, unsigned int driver_caps,
1760                       struct azx **rchip)
1761 {
1762         static const struct snd_device_ops ops = {
1763                 .dev_disconnect = azx_dev_disconnect,
1764                 .dev_free = azx_dev_free,
1765         };
1766         struct hda_intel *hda;
1767         struct azx *chip;
1768         int err;
1769
1770         *rchip = NULL;
1771
1772         err = pcim_enable_device(pci);
1773         if (err < 0)
1774                 return err;
1775
1776         hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL);
1777         if (!hda)
1778                 return -ENOMEM;
1779
1780         chip = &hda->chip;
1781         mutex_init(&chip->open_mutex);
1782         chip->card = card;
1783         chip->pci = pci;
1784         chip->ops = &pci_hda_ops;
1785         chip->driver_caps = driver_caps;
1786         chip->driver_type = driver_caps & 0xff;
1787         check_msi(chip);
1788         chip->dev_index = dev;
1789         if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1790                 chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1791         INIT_LIST_HEAD(&chip->pcm_list);
1792         INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1793         INIT_LIST_HEAD(&hda->list);
1794         init_vga_switcheroo(chip);
1795         init_completion(&hda->probe_wait);
1796
1797         assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1798
1799         if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1800                 chip->fallback_to_single_cmd = 1;
1801         else /* explicitly set to single_cmd or not */
1802                 chip->single_cmd = single_cmd;
1803
1804         azx_check_snoop_available(chip);
1805
1806         if (bdl_pos_adj[dev] < 0)
1807                 chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1808         else
1809                 chip->bdl_pos_adj = bdl_pos_adj[dev];
1810
1811         err = azx_bus_init(chip, model[dev]);
1812         if (err < 0)
1813                 return err;
1814
1815         /* use the non-cached pages in non-snoop mode */
1816         if (!azx_snoop(chip))
1817                 azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_WC_SG;
1818
1819         if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1820                 dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1821                 chip->bus.core.needs_damn_long_delay = 1;
1822         }
1823
1824         check_probe_mask(chip, dev);
1825
1826         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1827         if (err < 0) {
1828                 dev_err(card->dev, "Error creating device [card]!\n");
1829                 azx_free(chip);
1830                 return err;
1831         }
1832
1833         /* continue probing in work context as may trigger request module */
1834         INIT_DELAYED_WORK(&hda->probe_work, azx_probe_work);
1835
1836         *rchip = chip;
1837
1838         return 0;
1839 }
1840
1841 static int azx_first_init(struct azx *chip)
1842 {
1843         int dev = chip->dev_index;
1844         struct pci_dev *pci = chip->pci;
1845         struct snd_card *card = chip->card;
1846         struct hdac_bus *bus = azx_bus(chip);
1847         int err;
1848         unsigned short gcap;
1849         unsigned int dma_bits = 64;
1850
1851 #if BITS_PER_LONG != 64
1852         /* Fix up base address on ULI M5461 */
1853         if (chip->driver_type == AZX_DRIVER_ULI) {
1854                 u16 tmp3;
1855                 pci_read_config_word(pci, 0x40, &tmp3);
1856                 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1857                 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1858         }
1859 #endif
1860         /*
1861          * Fix response write request not synced to memory when handle
1862          * hdac interrupt on Glenfly Gpus
1863          */
1864         if (chip->driver_type == AZX_DRIVER_GFHDMI)
1865                 bus->polling_mode = 1;
1866
1867         if (chip->driver_type == AZX_DRIVER_LOONGSON) {
1868                 bus->polling_mode = 1;
1869                 bus->not_use_interrupts = 1;
1870                 bus->access_sdnctl_in_dword = 1;
1871         }
1872
1873         err = pcim_iomap_regions(pci, 1 << 0, "ICH HD audio");
1874         if (err < 0)
1875                 return err;
1876
1877         bus->addr = pci_resource_start(pci, 0);
1878         bus->remap_addr = pcim_iomap_table(pci)[0];
1879
1880         if (chip->driver_type == AZX_DRIVER_SKL)
1881                 snd_hdac_bus_parse_capabilities(bus);
1882
1883         /*
1884          * Some Intel CPUs has always running timer (ART) feature and
1885          * controller may have Global time sync reporting capability, so
1886          * check both of these before declaring synchronized time reporting
1887          * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1888          */
1889         chip->gts_present = false;
1890
1891 #ifdef CONFIG_X86
1892         if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1893                 chip->gts_present = true;
1894 #endif
1895
1896         if (chip->msi) {
1897                 if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1898                         dev_dbg(card->dev, "Disabling 64bit MSI\n");
1899                         pci->no_64bit_msi = true;
1900                 }
1901                 if (pci_enable_msi(pci) < 0)
1902                         chip->msi = 0;
1903         }
1904
1905         pci_set_master(pci);
1906
1907         gcap = azx_readw(chip, GCAP);
1908         dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1909
1910         /* AMD devices support 40 or 48bit DMA, take the safe one */
1911         if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1912                 dma_bits = 40;
1913
1914         /* disable SB600 64bit support for safety */
1915         if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1916                 struct pci_dev *p_smbus;
1917                 dma_bits = 40;
1918                 p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1919                                          PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1920                                          NULL);
1921                 if (p_smbus) {
1922                         if (p_smbus->revision < 0x30)
1923                                 gcap &= ~AZX_GCAP_64OK;
1924                         pci_dev_put(p_smbus);
1925                 }
1926         }
1927
1928         /* NVidia hardware normally only supports up to 40 bits of DMA */
1929         if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1930                 dma_bits = 40;
1931
1932         /* disable 64bit DMA address on some devices */
1933         if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1934                 dev_dbg(card->dev, "Disabling 64bit DMA\n");
1935                 gcap &= ~AZX_GCAP_64OK;
1936         }
1937
1938         /* disable buffer size rounding to 128-byte multiples if supported */
1939         if (align_buffer_size >= 0)
1940                 chip->align_buffer_size = !!align_buffer_size;
1941         else {
1942                 if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1943                         chip->align_buffer_size = 0;
1944                 else
1945                         chip->align_buffer_size = 1;
1946         }
1947
1948         /* allow 64bit DMA address if supported by H/W */
1949         if (!(gcap & AZX_GCAP_64OK))
1950                 dma_bits = 32;
1951         if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(dma_bits)))
1952                 dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32));
1953         dma_set_max_seg_size(&pci->dev, UINT_MAX);
1954
1955         /* read number of streams from GCAP register instead of using
1956          * hardcoded value
1957          */
1958         chip->capture_streams = (gcap >> 8) & 0x0f;
1959         chip->playback_streams = (gcap >> 12) & 0x0f;
1960         if (!chip->playback_streams && !chip->capture_streams) {
1961                 /* gcap didn't give any info, switching to old method */
1962
1963                 switch (chip->driver_type) {
1964                 case AZX_DRIVER_ULI:
1965                         chip->playback_streams = ULI_NUM_PLAYBACK;
1966                         chip->capture_streams = ULI_NUM_CAPTURE;
1967                         break;
1968                 case AZX_DRIVER_ATIHDMI:
1969                 case AZX_DRIVER_ATIHDMI_NS:
1970                         chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1971                         chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1972                         break;
1973                 case AZX_DRIVER_GFHDMI:
1974                 case AZX_DRIVER_GENERIC:
1975                 default:
1976                         chip->playback_streams = ICH6_NUM_PLAYBACK;
1977                         chip->capture_streams = ICH6_NUM_CAPTURE;
1978                         break;
1979                 }
1980         }
1981         chip->capture_index_offset = 0;
1982         chip->playback_index_offset = chip->capture_streams;
1983         chip->num_streams = chip->playback_streams + chip->capture_streams;
1984
1985         /* sanity check for the SDxCTL.STRM field overflow */
1986         if (chip->num_streams > 15 &&
1987             (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
1988                 dev_warn(chip->card->dev, "number of I/O streams is %d, "
1989                          "forcing separate stream tags", chip->num_streams);
1990                 chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
1991         }
1992
1993         /* initialize streams */
1994         err = azx_init_streams(chip);
1995         if (err < 0)
1996                 return err;
1997
1998         err = azx_alloc_stream_pages(chip);
1999         if (err < 0)
2000                 return err;
2001
2002         /* initialize chip */
2003         azx_init_pci(chip);
2004
2005         snd_hdac_i915_set_bclk(bus);
2006
2007         hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
2008
2009         /* codec detection */
2010         if (!azx_bus(chip)->codec_mask) {
2011                 dev_err(card->dev, "no codecs found!\n");
2012                 /* keep running the rest for the runtime PM */
2013         }
2014
2015         if (azx_acquire_irq(chip, 0) < 0)
2016                 return -EBUSY;
2017
2018         strcpy(card->driver, "HDA-Intel");
2019         strscpy(card->shortname, driver_short_names[chip->driver_type],
2020                 sizeof(card->shortname));
2021         snprintf(card->longname, sizeof(card->longname),
2022                  "%s at 0x%lx irq %i",
2023                  card->shortname, bus->addr, bus->irq);
2024
2025         return 0;
2026 }
2027
2028 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2029 /* callback from request_firmware_nowait() */
2030 static void azx_firmware_cb(const struct firmware *fw, void *context)
2031 {
2032         struct snd_card *card = context;
2033         struct azx *chip = card->private_data;
2034
2035         if (fw)
2036                 chip->fw = fw;
2037         else
2038                 dev_err(card->dev, "Cannot load firmware, continue without patching\n");
2039         if (!chip->disabled) {
2040                 /* continue probing */
2041                 azx_probe_continue(chip);
2042         }
2043 }
2044 #endif
2045
2046 static int disable_msi_reset_irq(struct azx *chip)
2047 {
2048         struct hdac_bus *bus = azx_bus(chip);
2049         int err;
2050
2051         free_irq(bus->irq, chip);
2052         bus->irq = -1;
2053         chip->card->sync_irq = -1;
2054         pci_disable_msi(chip->pci);
2055         chip->msi = 0;
2056         err = azx_acquire_irq(chip, 1);
2057         if (err < 0)
2058                 return err;
2059
2060         return 0;
2061 }
2062
2063 /* Denylist for skipping the whole probe:
2064  * some HD-audio PCI entries are exposed without any codecs, and such devices
2065  * should be ignored from the beginning.
2066  */
2067 static const struct pci_device_id driver_denylist[] = {
2068         { PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) }, /* ASUS ROG Zenith II / Strix */
2069         { PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) }, /* MSI TRX40 Creator */
2070         { PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) }, /* MSI TRX40 */
2071         {}
2072 };
2073
2074 static const struct hda_controller_ops pci_hda_ops = {
2075         .disable_msi_reset_irq = disable_msi_reset_irq,
2076         .position_check = azx_position_check,
2077 };
2078
2079 static DECLARE_BITMAP(probed_devs, SNDRV_CARDS);
2080
2081 static int azx_probe(struct pci_dev *pci,
2082                      const struct pci_device_id *pci_id)
2083 {
2084         struct snd_card *card;
2085         struct hda_intel *hda;
2086         struct azx *chip;
2087         bool schedule_probe;
2088         int dev;
2089         int err;
2090
2091         if (pci_match_id(driver_denylist, pci)) {
2092                 dev_info(&pci->dev, "Skipping the device on the denylist\n");
2093                 return -ENODEV;
2094         }
2095
2096         dev = find_first_zero_bit(probed_devs, SNDRV_CARDS);
2097         if (dev >= SNDRV_CARDS)
2098                 return -ENODEV;
2099         if (!enable[dev]) {
2100                 set_bit(dev, probed_devs);
2101                 return -ENOENT;
2102         }
2103
2104         /*
2105          * stop probe if another Intel's DSP driver should be activated
2106          */
2107         if (dmic_detect) {
2108                 err = snd_intel_dsp_driver_probe(pci);
2109                 if (err != SND_INTEL_DSP_DRIVER_ANY && err != SND_INTEL_DSP_DRIVER_LEGACY) {
2110                         dev_dbg(&pci->dev, "HDAudio driver not selected, aborting probe\n");
2111                         return -ENODEV;
2112                 }
2113         } else {
2114                 dev_warn(&pci->dev, "dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
2115         }
2116
2117         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2118                            0, &card);
2119         if (err < 0) {
2120                 dev_err(&pci->dev, "Error creating card!\n");
2121                 return err;
2122         }
2123
2124         err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2125         if (err < 0)
2126                 goto out_free;
2127         card->private_data = chip;
2128         hda = container_of(chip, struct hda_intel, chip);
2129
2130         pci_set_drvdata(pci, card);
2131
2132 #ifdef CONFIG_SND_HDA_I915
2133         /* bind with i915 if needed */
2134         if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2135                 err = snd_hdac_i915_init(azx_bus(chip));
2136                 if (err < 0) {
2137                         /* if the controller is bound only with HDMI/DP
2138                          * (for HSW and BDW), we need to abort the probe;
2139                          * for other chips, still continue probing as other
2140                          * codecs can be on the same link.
2141                          */
2142                         if (HDA_CONTROLLER_IN_GPU(pci)) {
2143                                 dev_err_probe(card->dev, err,
2144                                              "HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2145
2146                                 goto out_free;
2147                         } else {
2148                                 /* don't bother any longer */
2149                                 chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2150                         }
2151                 }
2152
2153                 /* HSW/BDW controllers need this power */
2154                 if (HDA_CONTROLLER_IN_GPU(pci))
2155                         hda->need_i915_power = true;
2156         }
2157 #else
2158         if (HDA_CONTROLLER_IN_GPU(pci))
2159                 dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2160 #endif
2161
2162         err = register_vga_switcheroo(chip);
2163         if (err < 0) {
2164                 dev_err(card->dev, "Error registering vga_switcheroo client\n");
2165                 goto out_free;
2166         }
2167
2168         if (check_hdmi_disabled(pci)) {
2169                 dev_info(card->dev, "VGA controller is disabled\n");
2170                 dev_info(card->dev, "Delaying initialization\n");
2171                 chip->disabled = true;
2172         }
2173
2174         schedule_probe = !chip->disabled;
2175
2176 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2177         if (patch[dev] && *patch[dev]) {
2178                 dev_info(card->dev, "Applying patch firmware '%s'\n",
2179                          patch[dev]);
2180                 err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2181                                               &pci->dev, GFP_KERNEL, card,
2182                                               azx_firmware_cb);
2183                 if (err < 0)
2184                         goto out_free;
2185                 schedule_probe = false; /* continued in azx_firmware_cb() */
2186         }
2187 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2188
2189         if (schedule_probe)
2190                 schedule_delayed_work(&hda->probe_work, 0);
2191
2192         set_bit(dev, probed_devs);
2193         if (chip->disabled)
2194                 complete_all(&hda->probe_wait);
2195         return 0;
2196
2197 out_free:
2198         pci_set_drvdata(pci, NULL);
2199         snd_card_free(card);
2200         return err;
2201 }
2202
2203 #ifdef CONFIG_PM
2204 /* On some boards setting power_save to a non 0 value leads to clicking /
2205  * popping sounds when ever we enter/leave powersaving mode. Ideally we would
2206  * figure out how to avoid these sounds, but that is not always feasible.
2207  * So we keep a list of devices where we disable powersaving as its known
2208  * to causes problems on these devices.
2209  */
2210 static const struct snd_pci_quirk power_save_denylist[] = {
2211         /* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2212         SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
2213         /* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2214         SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
2215         /* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2216         SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
2217         /* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2218         SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
2219         /* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2220         SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
2221         /* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2222         /* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
2223         SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
2224         /* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2225         SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
2226         /* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
2227         SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
2228         /* https://bugs.launchpad.net/bugs/1821663 */
2229         SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
2230         /* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
2231         SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
2232         /* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
2233         SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
2234         SND_PCI_QUIRK(0x17aa, 0x316e, "Lenovo ThinkCentre M70q", 0),
2235         /* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
2236         SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
2237         /* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
2238         SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
2239         /* https://bugs.launchpad.net/bugs/1821663 */
2240         SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
2241         {}
2242 };
2243 #endif /* CONFIG_PM */
2244
2245 static void set_default_power_save(struct azx *chip)
2246 {
2247         int val = power_save;
2248
2249 #ifdef CONFIG_PM
2250         if (pm_blacklist) {
2251                 const struct snd_pci_quirk *q;
2252
2253                 q = snd_pci_quirk_lookup(chip->pci, power_save_denylist);
2254                 if (q && val) {
2255                         dev_info(chip->card->dev, "device %04x:%04x is on the power_save denylist, forcing power_save to 0\n",
2256                                  q->subvendor, q->subdevice);
2257                         val = 0;
2258                 }
2259         }
2260 #endif /* CONFIG_PM */
2261         snd_hda_set_power_save(&chip->bus, val * 1000);
2262 }
2263
2264 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2265 static const unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2266         [AZX_DRIVER_NVIDIA] = 8,
2267         [AZX_DRIVER_TERA] = 1,
2268 };
2269
2270 static int azx_probe_continue(struct azx *chip)
2271 {
2272         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2273         struct hdac_bus *bus = azx_bus(chip);
2274         struct pci_dev *pci = chip->pci;
2275         int dev = chip->dev_index;
2276         int err;
2277
2278         if (chip->disabled || hda->init_failed)
2279                 return -EIO;
2280         if (hda->probe_retry)
2281                 goto probe_retry;
2282
2283         to_hda_bus(bus)->bus_probing = 1;
2284         hda->probe_continued = 1;
2285
2286         /* Request display power well for the HDA controller or codec. For
2287          * Haswell/Broadwell, both the display HDA controller and codec need
2288          * this power. For other platforms, like Baytrail/Braswell, only the
2289          * display codec needs the power and it can be released after probe.
2290          */
2291         display_power(chip, true);
2292
2293         err = azx_first_init(chip);
2294         if (err < 0)
2295                 goto out_free;
2296
2297 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2298         chip->beep_mode = beep_mode[dev];
2299 #endif
2300
2301         chip->ctl_dev_id = ctl_dev_id;
2302
2303         /* create codec instances */
2304         if (bus->codec_mask) {
2305                 err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2306                 if (err < 0)
2307                         goto out_free;
2308         }
2309
2310 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2311         if (chip->fw) {
2312                 err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2313                                          chip->fw->data);
2314                 if (err < 0)
2315                         goto out_free;
2316 #ifndef CONFIG_PM
2317                 release_firmware(chip->fw); /* no longer needed */
2318                 chip->fw = NULL;
2319 #endif
2320         }
2321 #endif
2322
2323  probe_retry:
2324         if (bus->codec_mask && !(probe_only[dev] & 1)) {
2325                 err = azx_codec_configure(chip);
2326                 if (err) {
2327                         if ((chip->driver_caps & AZX_DCAPS_RETRY_PROBE) &&
2328                             ++hda->probe_retry < 60) {
2329                                 schedule_delayed_work(&hda->probe_work,
2330                                                       msecs_to_jiffies(1000));
2331                                 return 0; /* keep things up */
2332                         }
2333                         dev_err(chip->card->dev, "Cannot probe codecs, giving up\n");
2334                         goto out_free;
2335                 }
2336         }
2337
2338         err = snd_card_register(chip->card);
2339         if (err < 0)
2340                 goto out_free;
2341
2342         setup_vga_switcheroo_runtime_pm(chip);
2343
2344         chip->running = 1;
2345         azx_add_card_list(chip);
2346
2347         set_default_power_save(chip);
2348
2349         if (azx_has_pm_runtime(chip)) {
2350                 pm_runtime_use_autosuspend(&pci->dev);
2351                 pm_runtime_allow(&pci->dev);
2352                 pm_runtime_put_autosuspend(&pci->dev);
2353         }
2354
2355 out_free:
2356         if (err < 0) {
2357                 pci_set_drvdata(pci, NULL);
2358                 snd_card_free(chip->card);
2359                 return err;
2360         }
2361
2362         if (!hda->need_i915_power)
2363                 display_power(chip, false);
2364         complete_all(&hda->probe_wait);
2365         to_hda_bus(bus)->bus_probing = 0;
2366         hda->probe_retry = 0;
2367         return 0;
2368 }
2369
2370 static void azx_remove(struct pci_dev *pci)
2371 {
2372         struct snd_card *card = pci_get_drvdata(pci);
2373         struct azx *chip;
2374         struct hda_intel *hda;
2375
2376         if (card) {
2377                 /* cancel the pending probing work */
2378                 chip = card->private_data;
2379                 hda = container_of(chip, struct hda_intel, chip);
2380                 /* FIXME: below is an ugly workaround.
2381                  * Both device_release_driver() and driver_probe_device()
2382                  * take *both* the device's and its parent's lock before
2383                  * calling the remove() and probe() callbacks.  The codec
2384                  * probe takes the locks of both the codec itself and its
2385                  * parent, i.e. the PCI controller dev.  Meanwhile, when
2386                  * the PCI controller is unbound, it takes its lock, too
2387                  * ==> ouch, a deadlock!
2388                  * As a workaround, we unlock temporarily here the controller
2389                  * device during cancel_work_sync() call.
2390                  */
2391                 device_unlock(&pci->dev);
2392                 cancel_delayed_work_sync(&hda->probe_work);
2393                 device_lock(&pci->dev);
2394
2395                 clear_bit(chip->dev_index, probed_devs);
2396                 pci_set_drvdata(pci, NULL);
2397                 snd_card_free(card);
2398         }
2399 }
2400
2401 static void azx_shutdown(struct pci_dev *pci)
2402 {
2403         struct snd_card *card = pci_get_drvdata(pci);
2404         struct azx *chip;
2405
2406         if (!card)
2407                 return;
2408         chip = card->private_data;
2409         if (chip && chip->running)
2410                 __azx_shutdown_chip(chip, true);
2411 }
2412
2413 /* PCI IDs */
2414 static const struct pci_device_id azx_ids[] = {
2415         /* CPT */
2416         { PCI_DEVICE_DATA(INTEL, HDA_CPT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2417         /* PBG */
2418         { PCI_DEVICE_DATA(INTEL, HDA_PBG, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2419         /* Panther Point */
2420         { PCI_DEVICE_DATA(INTEL, HDA_PPT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2421         /* Lynx Point */
2422         { PCI_DEVICE_DATA(INTEL, HDA_LPT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2423         /* 9 Series */
2424         { PCI_DEVICE_DATA(INTEL, HDA_9_SERIES, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2425         /* Wellsburg */
2426         { PCI_DEVICE_DATA(INTEL, HDA_WBG_0, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2427         { PCI_DEVICE_DATA(INTEL, HDA_WBG_1, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2428         /* Lewisburg */
2429         { PCI_DEVICE_DATA(INTEL, HDA_LBG_0, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE) },
2430         { PCI_DEVICE_DATA(INTEL, HDA_LBG_1, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE) },
2431         /* Lynx Point-LP */
2432         { PCI_DEVICE_DATA(INTEL, HDA_LPT_LP_0, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2433         /* Lynx Point-LP */
2434         { PCI_DEVICE_DATA(INTEL, HDA_LPT_LP_1, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2435         /* Wildcat Point-LP */
2436         { PCI_DEVICE_DATA(INTEL, HDA_WPT_LP, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2437         /* Skylake (Sunrise Point) */
2438         { PCI_DEVICE_DATA(INTEL, HDA_SKL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2439         /* Skylake-LP (Sunrise Point-LP) */
2440         { PCI_DEVICE_DATA(INTEL, HDA_SKL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2441         /* Kabylake */
2442         { PCI_DEVICE_DATA(INTEL, HDA_KBL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2443         /* Kabylake-LP */
2444         { PCI_DEVICE_DATA(INTEL, HDA_KBL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2445         /* Kabylake-H */
2446         { PCI_DEVICE_DATA(INTEL, HDA_KBL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2447         /* Coffelake */
2448         { PCI_DEVICE_DATA(INTEL, HDA_CNL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2449         /* Cannonlake */
2450         { PCI_DEVICE_DATA(INTEL, HDA_CNL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2451         /* CometLake-LP */
2452         { PCI_DEVICE_DATA(INTEL, HDA_CML_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2453         /* CometLake-H */
2454         { PCI_DEVICE_DATA(INTEL, HDA_CML_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2455         { PCI_DEVICE_DATA(INTEL, HDA_RKL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2456         /* CometLake-S */
2457         { PCI_DEVICE_DATA(INTEL, HDA_CML_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2458         /* CometLake-R */
2459         { PCI_DEVICE_DATA(INTEL, HDA_CML_R, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2460         /* Icelake */
2461         { PCI_DEVICE_DATA(INTEL, HDA_ICL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2462         /* Icelake-H */
2463         { PCI_DEVICE_DATA(INTEL, HDA_ICL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2464         /* Jasperlake */
2465         { PCI_DEVICE_DATA(INTEL, HDA_ICL_N, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2466         { PCI_DEVICE_DATA(INTEL, HDA_JSL_N, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2467         /* Tigerlake */
2468         { PCI_DEVICE_DATA(INTEL, HDA_TGL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2469         /* Tigerlake-H */
2470         { PCI_DEVICE_DATA(INTEL, HDA_TGL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2471         /* DG1 */
2472         { PCI_DEVICE_DATA(INTEL, HDA_DG1, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2473         /* DG2 */
2474         { PCI_DEVICE_DATA(INTEL, HDA_DG2_0, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2475         { PCI_DEVICE_DATA(INTEL, HDA_DG2_1, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2476         { PCI_DEVICE_DATA(INTEL, HDA_DG2_2, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2477         /* Alderlake-S */
2478         { PCI_DEVICE_DATA(INTEL, HDA_ADL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2479         /* Alderlake-P */
2480         { PCI_DEVICE_DATA(INTEL, HDA_ADL_P, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2481         { PCI_DEVICE_DATA(INTEL, HDA_ADL_PS, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2482         { PCI_DEVICE_DATA(INTEL, HDA_ADL_PX, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2483         /* Alderlake-M */
2484         { PCI_DEVICE_DATA(INTEL, HDA_ADL_M, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2485         /* Alderlake-N */
2486         { PCI_DEVICE_DATA(INTEL, HDA_ADL_N, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2487         /* Elkhart Lake */
2488         { PCI_DEVICE_DATA(INTEL, HDA_EHL_0, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2489         { PCI_DEVICE_DATA(INTEL, HDA_EHL_3, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2490         /* Raptor Lake */
2491         { PCI_DEVICE_DATA(INTEL, HDA_RPL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2492         { PCI_DEVICE_DATA(INTEL, HDA_RPL_P_0, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2493         { PCI_DEVICE_DATA(INTEL, HDA_RPL_P_1, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2494         { PCI_DEVICE_DATA(INTEL, HDA_RPL_M, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2495         { PCI_DEVICE_DATA(INTEL, HDA_RPL_PX, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2496         { PCI_DEVICE_DATA(INTEL, HDA_MTL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2497         /* Lunarlake-P */
2498         { PCI_DEVICE_DATA(INTEL, HDA_LNL_P, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2499         /* Arrow Lake-S */
2500         { PCI_DEVICE_DATA(INTEL, HDA_ARL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2501         /* Apollolake (Broxton-P) */
2502         { PCI_DEVICE_DATA(INTEL, HDA_APL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON) },
2503         /* Gemini-Lake */
2504         { PCI_DEVICE_DATA(INTEL, HDA_GML, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON) },
2505         /* Haswell */
2506         { PCI_DEVICE_DATA(INTEL, HDA_HSW_0, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL) },
2507         { PCI_DEVICE_DATA(INTEL, HDA_HSW_2, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL) },
2508         { PCI_DEVICE_DATA(INTEL, HDA_HSW_3, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL) },
2509         /* Broadwell */
2510         { PCI_DEVICE_DATA(INTEL, HDA_BDW, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL) },
2511         /* 5 Series/3400 */
2512         { PCI_DEVICE_DATA(INTEL, HDA_5_3400_SERIES_0, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2513         { PCI_DEVICE_DATA(INTEL, HDA_5_3400_SERIES_1, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2514         /* Poulsbo */
2515         { PCI_DEVICE_DATA(INTEL, HDA_POULSBO, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE |
2516           AZX_DCAPS_POSFIX_LPIB) },
2517         /* Oaktrail */
2518         { PCI_DEVICE_DATA(INTEL, HDA_OAKTRAIL, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE) },
2519         /* BayTrail */
2520         { PCI_DEVICE_DATA(INTEL, HDA_BYT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL) },
2521         /* Braswell */
2522         { PCI_DEVICE_DATA(INTEL, HDA_BSW, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL) },
2523         /* ICH6 */
2524         { PCI_DEVICE_DATA(INTEL, HDA_ICH6, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2525         /* ICH7 */
2526         { PCI_DEVICE_DATA(INTEL, HDA_ICH7, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2527         /* ESB2 */
2528         { PCI_DEVICE_DATA(INTEL, HDA_ESB2, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2529         /* ICH8 */
2530         { PCI_DEVICE_DATA(INTEL, HDA_ICH8, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2531         /* ICH9 */
2532         { PCI_DEVICE_DATA(INTEL, HDA_ICH9_0, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2533         /* ICH9 */
2534         { PCI_DEVICE_DATA(INTEL, HDA_ICH9_1, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2535         /* ICH10 */
2536         { PCI_DEVICE_DATA(INTEL, HDA_ICH10_0, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2537         /* ICH10 */
2538         { PCI_DEVICE_DATA(INTEL, HDA_ICH10_1, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2539         /* Generic Intel */
2540         { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2541           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2542           .class_mask = 0xffffff,
2543           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2544         /* ATI SB 450/600/700/800/900 */
2545         { PCI_VDEVICE(ATI, 0x437b),
2546           .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2547         { PCI_VDEVICE(ATI, 0x4383),
2548           .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2549         /* AMD Hudson */
2550         { PCI_VDEVICE(AMD, 0x780d),
2551           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2552         /* AMD, X370 & co */
2553         { PCI_VDEVICE(AMD, 0x1457),
2554           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2555         /* AMD, X570 & co */
2556         { PCI_VDEVICE(AMD, 0x1487),
2557           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2558         /* AMD Stoney */
2559         { PCI_VDEVICE(AMD, 0x157a),
2560           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2561                          AZX_DCAPS_PM_RUNTIME },
2562         /* AMD Raven */
2563         { PCI_VDEVICE(AMD, 0x15e3),
2564           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2565         /* ATI HDMI */
2566         { PCI_VDEVICE(ATI, 0x0002),
2567           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2568           AZX_DCAPS_PM_RUNTIME },
2569         { PCI_VDEVICE(ATI, 0x1308),
2570           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2571         { PCI_VDEVICE(ATI, 0x157a),
2572           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2573         { PCI_VDEVICE(ATI, 0x15b3),
2574           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2575         { PCI_VDEVICE(ATI, 0x793b),
2576           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2577         { PCI_VDEVICE(ATI, 0x7919),
2578           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2579         { PCI_VDEVICE(ATI, 0x960f),
2580           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2581         { PCI_VDEVICE(ATI, 0x970f),
2582           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2583         { PCI_VDEVICE(ATI, 0x9840),
2584           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2585         { PCI_VDEVICE(ATI, 0xaa00),
2586           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2587         { PCI_VDEVICE(ATI, 0xaa08),
2588           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2589         { PCI_VDEVICE(ATI, 0xaa10),
2590           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2591         { PCI_VDEVICE(ATI, 0xaa18),
2592           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2593         { PCI_VDEVICE(ATI, 0xaa20),
2594           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2595         { PCI_VDEVICE(ATI, 0xaa28),
2596           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2597         { PCI_VDEVICE(ATI, 0xaa30),
2598           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2599         { PCI_VDEVICE(ATI, 0xaa38),
2600           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2601         { PCI_VDEVICE(ATI, 0xaa40),
2602           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2603         { PCI_VDEVICE(ATI, 0xaa48),
2604           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2605         { PCI_VDEVICE(ATI, 0xaa50),
2606           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2607         { PCI_VDEVICE(ATI, 0xaa58),
2608           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2609         { PCI_VDEVICE(ATI, 0xaa60),
2610           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2611         { PCI_VDEVICE(ATI, 0xaa68),
2612           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2613         { PCI_VDEVICE(ATI, 0xaa80),
2614           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2615         { PCI_VDEVICE(ATI, 0xaa88),
2616           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2617         { PCI_VDEVICE(ATI, 0xaa90),
2618           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2619         { PCI_VDEVICE(ATI, 0xaa98),
2620           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2621         { PCI_VDEVICE(ATI, 0x9902),
2622           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2623         { PCI_VDEVICE(ATI, 0xaaa0),
2624           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2625         { PCI_VDEVICE(ATI, 0xaaa8),
2626           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2627         { PCI_VDEVICE(ATI, 0xaab0),
2628           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2629         { PCI_VDEVICE(ATI, 0xaac0),
2630           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2631           AZX_DCAPS_PM_RUNTIME },
2632         { PCI_VDEVICE(ATI, 0xaac8),
2633           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2634           AZX_DCAPS_PM_RUNTIME },
2635         { PCI_VDEVICE(ATI, 0xaad8),
2636           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2637           AZX_DCAPS_PM_RUNTIME },
2638         { PCI_VDEVICE(ATI, 0xaae0),
2639           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2640           AZX_DCAPS_PM_RUNTIME },
2641         { PCI_VDEVICE(ATI, 0xaae8),
2642           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2643           AZX_DCAPS_PM_RUNTIME },
2644         { PCI_VDEVICE(ATI, 0xaaf0),
2645           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2646           AZX_DCAPS_PM_RUNTIME },
2647         { PCI_VDEVICE(ATI, 0xaaf8),
2648           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2649           AZX_DCAPS_PM_RUNTIME },
2650         { PCI_VDEVICE(ATI, 0xab00),
2651           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2652           AZX_DCAPS_PM_RUNTIME },
2653         { PCI_VDEVICE(ATI, 0xab08),
2654           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2655           AZX_DCAPS_PM_RUNTIME },
2656         { PCI_VDEVICE(ATI, 0xab10),
2657           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2658           AZX_DCAPS_PM_RUNTIME },
2659         { PCI_VDEVICE(ATI, 0xab18),
2660           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2661           AZX_DCAPS_PM_RUNTIME },
2662         { PCI_VDEVICE(ATI, 0xab20),
2663           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2664           AZX_DCAPS_PM_RUNTIME },
2665         { PCI_VDEVICE(ATI, 0xab28),
2666           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2667           AZX_DCAPS_PM_RUNTIME },
2668         { PCI_VDEVICE(ATI, 0xab30),
2669           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2670           AZX_DCAPS_PM_RUNTIME },
2671         { PCI_VDEVICE(ATI, 0xab38),
2672           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2673           AZX_DCAPS_PM_RUNTIME },
2674         /* GLENFLY */
2675         { PCI_DEVICE(0x6766, PCI_ANY_ID),
2676           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2677           .class_mask = 0xffffff,
2678           .driver_data = AZX_DRIVER_GFHDMI | AZX_DCAPS_POSFIX_LPIB |
2679           AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2680         /* VIA VT8251/VT8237A */
2681         { PCI_VDEVICE(VIA, 0x3288), .driver_data = AZX_DRIVER_VIA },
2682         /* VIA GFX VT7122/VX900 */
2683         { PCI_VDEVICE(VIA, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2684         /* VIA GFX VT6122/VX11 */
2685         { PCI_VDEVICE(VIA, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2686         /* SIS966 */
2687         { PCI_VDEVICE(SI, 0x7502), .driver_data = AZX_DRIVER_SIS },
2688         /* ULI M5461 */
2689         { PCI_VDEVICE(AL, 0x5461), .driver_data = AZX_DRIVER_ULI },
2690         /* NVIDIA MCP */
2691         { PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2692           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2693           .class_mask = 0xffffff,
2694           .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2695         /* Teradici */
2696         { PCI_DEVICE(0x6549, 0x1200),
2697           .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2698         { PCI_DEVICE(0x6549, 0x2200),
2699           .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2700         /* Creative X-Fi (CA0110-IBG) */
2701         /* CTHDA chips */
2702         { PCI_VDEVICE(CREATIVE, 0x0010),
2703           .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2704         { PCI_VDEVICE(CREATIVE, 0x0012),
2705           .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2706 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2707         /* the following entry conflicts with snd-ctxfi driver,
2708          * as ctxfi driver mutates from HD-audio to native mode with
2709          * a special command sequence.
2710          */
2711         { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2712           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2713           .class_mask = 0xffffff,
2714           .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2715           AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2716 #else
2717         /* this entry seems still valid -- i.e. without emu20kx chip */
2718         { PCI_VDEVICE(CREATIVE, 0x0009),
2719           .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2720           AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2721 #endif
2722         /* CM8888 */
2723         { PCI_VDEVICE(CMEDIA, 0x5011),
2724           .driver_data = AZX_DRIVER_CMEDIA |
2725           AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2726         /* Vortex86MX */
2727         { PCI_VDEVICE(RDC, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2728         /* VMware HDAudio */
2729         { PCI_VDEVICE(VMWARE, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2730         /* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2731         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2732           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2733           .class_mask = 0xffffff,
2734           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2735         { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2736           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2737           .class_mask = 0xffffff,
2738           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2739         /* Zhaoxin */
2740         { PCI_VDEVICE(ZHAOXIN, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2741         /* Loongson HDAudio*/
2742         { PCI_VDEVICE(LOONGSON, PCI_DEVICE_ID_LOONGSON_HDA),
2743           .driver_data = AZX_DRIVER_LOONGSON },
2744         { PCI_VDEVICE(LOONGSON, PCI_DEVICE_ID_LOONGSON_HDMI),
2745           .driver_data = AZX_DRIVER_LOONGSON },
2746         { 0, }
2747 };
2748 MODULE_DEVICE_TABLE(pci, azx_ids);
2749
2750 /* pci_driver definition */
2751 static struct pci_driver azx_driver = {
2752         .name = KBUILD_MODNAME,
2753         .id_table = azx_ids,
2754         .probe = azx_probe,
2755         .remove = azx_remove,
2756         .shutdown = azx_shutdown,
2757         .driver = {
2758                 .pm = AZX_PM_OPS,
2759         },
2760 };
2761
2762 module_pci_driver(azx_driver);