1 /* 2 * skl-sst-ipc.c - Intel skl IPC Support 3 * 4 * Copyright (C) 2014-15, Intel Corporation. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as version 2, as 8 * published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, but 11 * WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * General Public License for more details. 14 */ 15 #include <linux/device.h> 16 17 #include "../common/sst-dsp.h" 18 #include "../common/sst-dsp-priv.h" 19 #include "skl.h" 20 #include "skl-sst-dsp.h" 21 #include "skl-sst-ipc.h" 22 #include "sound/hdaudio_ext.h" 23 24 25 #define IPC_IXC_STATUS_BITS 24 26 27 /* Global Message - Generic */ 28 #define IPC_GLB_TYPE_SHIFT 24 29 #define IPC_GLB_TYPE_MASK (0xf << IPC_GLB_TYPE_SHIFT) 30 #define IPC_GLB_TYPE(x) ((x) << IPC_GLB_TYPE_SHIFT) 31 32 /* Global Message - Reply */ 33 #define IPC_GLB_REPLY_STATUS_SHIFT 24 34 #define IPC_GLB_REPLY_STATUS_MASK ((0x1 << IPC_GLB_REPLY_STATUS_SHIFT) - 1) 35 #define IPC_GLB_REPLY_STATUS(x) ((x) << IPC_GLB_REPLY_STATUS_SHIFT) 36 37 #define IPC_GLB_REPLY_TYPE_SHIFT 29 38 #define IPC_GLB_REPLY_TYPE_MASK 0x1F 39 #define IPC_GLB_REPLY_TYPE(x) (((x) >> IPC_GLB_REPLY_TYPE_SHIFT) \ 40 & IPC_GLB_RPLY_TYPE_MASK) 41 42 #define IPC_TIMEOUT_MSECS 3000 43 44 #define IPC_EMPTY_LIST_SIZE 8 45 46 #define IPC_MSG_TARGET_SHIFT 30 47 #define IPC_MSG_TARGET_MASK 0x1 48 #define IPC_MSG_TARGET(x) (((x) & IPC_MSG_TARGET_MASK) \ 49 << IPC_MSG_TARGET_SHIFT) 50 51 #define IPC_MSG_DIR_SHIFT 29 52 #define IPC_MSG_DIR_MASK 0x1 53 #define IPC_MSG_DIR(x) (((x) & IPC_MSG_DIR_MASK) \ 54 << IPC_MSG_DIR_SHIFT) 55 /* Global Notification Message */ 56 #define IPC_GLB_NOTIFY_TYPE_SHIFT 16 57 #define IPC_GLB_NOTIFY_TYPE_MASK 0xFF 58 #define IPC_GLB_NOTIFY_TYPE(x) (((x) >> IPC_GLB_NOTIFY_TYPE_SHIFT) \ 59 & IPC_GLB_NOTIFY_TYPE_MASK) 60 61 #define IPC_GLB_NOTIFY_MSG_TYPE_SHIFT 24 62 #define IPC_GLB_NOTIFY_MSG_TYPE_MASK 0x1F 63 #define IPC_GLB_NOTIFY_MSG_TYPE(x) (((x) >> IPC_GLB_NOTIFY_MSG_TYPE_SHIFT) \ 64 & IPC_GLB_NOTIFY_MSG_TYPE_MASK) 65 66 #define IPC_GLB_NOTIFY_RSP_SHIFT 29 67 #define IPC_GLB_NOTIFY_RSP_MASK 0x1 68 #define IPC_GLB_NOTIFY_RSP_TYPE(x) (((x) >> IPC_GLB_NOTIFY_RSP_SHIFT) \ 69 & IPC_GLB_NOTIFY_RSP_MASK) 70 71 /* Pipeline operations */ 72 73 /* Create pipeline message */ 74 #define IPC_PPL_MEM_SIZE_SHIFT 0 75 #define IPC_PPL_MEM_SIZE_MASK 0x7FF 76 #define IPC_PPL_MEM_SIZE(x) (((x) & IPC_PPL_MEM_SIZE_MASK) \ 77 << IPC_PPL_MEM_SIZE_SHIFT) 78 79 #define IPC_PPL_TYPE_SHIFT 11 80 #define IPC_PPL_TYPE_MASK 0x1F 81 #define IPC_PPL_TYPE(x) (((x) & IPC_PPL_TYPE_MASK) \ 82 << IPC_PPL_TYPE_SHIFT) 83 84 #define IPC_INSTANCE_ID_SHIFT 16 85 #define IPC_INSTANCE_ID_MASK 0xFF 86 #define IPC_INSTANCE_ID(x) (((x) & IPC_INSTANCE_ID_MASK) \ 87 << IPC_INSTANCE_ID_SHIFT) 88 89 #define IPC_PPL_LP_MODE_SHIFT 0 90 #define IPC_PPL_LP_MODE_MASK 0x1 91 #define IPC_PPL_LP_MODE(x) (((x) & IPC_PPL_LP_MODE_MASK) \ 92 << IPC_PPL_LP_MODE_SHIFT) 93 94 /* Set pipeline state message */ 95 #define IPC_PPL_STATE_SHIFT 0 96 #define IPC_PPL_STATE_MASK 0x1F 97 #define IPC_PPL_STATE(x) (((x) & IPC_PPL_STATE_MASK) \ 98 << IPC_PPL_STATE_SHIFT) 99 100 /* Module operations primary register */ 101 #define IPC_MOD_ID_SHIFT 0 102 #define IPC_MOD_ID_MASK 0xFFFF 103 #define IPC_MOD_ID(x) (((x) & IPC_MOD_ID_MASK) \ 104 << IPC_MOD_ID_SHIFT) 105 106 #define IPC_MOD_INSTANCE_ID_SHIFT 16 107 #define IPC_MOD_INSTANCE_ID_MASK 0xFF 108 #define IPC_MOD_INSTANCE_ID(x) (((x) & IPC_MOD_INSTANCE_ID_MASK) \ 109 << IPC_MOD_INSTANCE_ID_SHIFT) 110 111 /* Init instance message extension register */ 112 #define IPC_PARAM_BLOCK_SIZE_SHIFT 0 113 #define IPC_PARAM_BLOCK_SIZE_MASK 0xFFFF 114 #define IPC_PARAM_BLOCK_SIZE(x) (((x) & IPC_PARAM_BLOCK_SIZE_MASK) \ 115 << IPC_PARAM_BLOCK_SIZE_SHIFT) 116 117 #define IPC_PPL_INSTANCE_ID_SHIFT 16 118 #define IPC_PPL_INSTANCE_ID_MASK 0xFF 119 #define IPC_PPL_INSTANCE_ID(x) (((x) & IPC_PPL_INSTANCE_ID_MASK) \ 120 << IPC_PPL_INSTANCE_ID_SHIFT) 121 122 #define IPC_CORE_ID_SHIFT 24 123 #define IPC_CORE_ID_MASK 0x1F 124 #define IPC_CORE_ID(x) (((x) & IPC_CORE_ID_MASK) \ 125 << IPC_CORE_ID_SHIFT) 126 127 #define IPC_DOMAIN_SHIFT 28 128 #define IPC_DOMAIN_MASK 0x1 129 #define IPC_DOMAIN(x) (((x) & IPC_DOMAIN_MASK) \ 130 << IPC_DOMAIN_SHIFT) 131 132 /* Bind/Unbind message extension register */ 133 #define IPC_DST_MOD_ID_SHIFT 0 134 #define IPC_DST_MOD_ID(x) (((x) & IPC_MOD_ID_MASK) \ 135 << IPC_DST_MOD_ID_SHIFT) 136 137 #define IPC_DST_MOD_INSTANCE_ID_SHIFT 16 138 #define IPC_DST_MOD_INSTANCE_ID(x) (((x) & IPC_MOD_INSTANCE_ID_MASK) \ 139 << IPC_DST_MOD_INSTANCE_ID_SHIFT) 140 141 #define IPC_DST_QUEUE_SHIFT 24 142 #define IPC_DST_QUEUE_MASK 0x7 143 #define IPC_DST_QUEUE(x) (((x) & IPC_DST_QUEUE_MASK) \ 144 << IPC_DST_QUEUE_SHIFT) 145 146 #define IPC_SRC_QUEUE_SHIFT 27 147 #define IPC_SRC_QUEUE_MASK 0x7 148 #define IPC_SRC_QUEUE(x) (((x) & IPC_SRC_QUEUE_MASK) \ 149 << IPC_SRC_QUEUE_SHIFT) 150 /* Load Module count */ 151 #define IPC_LOAD_MODULE_SHIFT 0 152 #define IPC_LOAD_MODULE_MASK 0xFF 153 #define IPC_LOAD_MODULE_CNT(x) (((x) & IPC_LOAD_MODULE_MASK) \ 154 << IPC_LOAD_MODULE_SHIFT) 155 156 /* Save pipeline messgae extension register */ 157 #define IPC_DMA_ID_SHIFT 0 158 #define IPC_DMA_ID_MASK 0x1F 159 #define IPC_DMA_ID(x) (((x) & IPC_DMA_ID_MASK) \ 160 << IPC_DMA_ID_SHIFT) 161 /* Large Config message extension register */ 162 #define IPC_DATA_OFFSET_SZ_SHIFT 0 163 #define IPC_DATA_OFFSET_SZ_MASK 0xFFFFF 164 #define IPC_DATA_OFFSET_SZ(x) (((x) & IPC_DATA_OFFSET_SZ_MASK) \ 165 << IPC_DATA_OFFSET_SZ_SHIFT) 166 #define IPC_DATA_OFFSET_SZ_CLEAR ~(IPC_DATA_OFFSET_SZ_MASK \ 167 << IPC_DATA_OFFSET_SZ_SHIFT) 168 169 #define IPC_LARGE_PARAM_ID_SHIFT 20 170 #define IPC_LARGE_PARAM_ID_MASK 0xFF 171 #define IPC_LARGE_PARAM_ID(x) (((x) & IPC_LARGE_PARAM_ID_MASK) \ 172 << IPC_LARGE_PARAM_ID_SHIFT) 173 174 #define IPC_FINAL_BLOCK_SHIFT 28 175 #define IPC_FINAL_BLOCK_MASK 0x1 176 #define IPC_FINAL_BLOCK(x) (((x) & IPC_FINAL_BLOCK_MASK) \ 177 << IPC_FINAL_BLOCK_SHIFT) 178 179 #define IPC_INITIAL_BLOCK_SHIFT 29 180 #define IPC_INITIAL_BLOCK_MASK 0x1 181 #define IPC_INITIAL_BLOCK(x) (((x) & IPC_INITIAL_BLOCK_MASK) \ 182 << IPC_INITIAL_BLOCK_SHIFT) 183 #define IPC_INITIAL_BLOCK_CLEAR ~(IPC_INITIAL_BLOCK_MASK \ 184 << IPC_INITIAL_BLOCK_SHIFT) 185 /* Set D0ix IPC extension register */ 186 #define IPC_D0IX_WAKE_SHIFT 0 187 #define IPC_D0IX_WAKE_MASK 0x1 188 #define IPC_D0IX_WAKE(x) (((x) & IPC_D0IX_WAKE_MASK) \ 189 << IPC_D0IX_WAKE_SHIFT) 190 191 #define IPC_D0IX_STREAMING_SHIFT 1 192 #define IPC_D0IX_STREAMING_MASK 0x1 193 #define IPC_D0IX_STREAMING(x) (((x) & IPC_D0IX_STREAMING_MASK) \ 194 << IPC_D0IX_STREAMING_SHIFT) 195 196 197 enum skl_ipc_msg_target { 198 IPC_FW_GEN_MSG = 0, 199 IPC_MOD_MSG = 1 200 }; 201 202 enum skl_ipc_msg_direction { 203 IPC_MSG_REQUEST = 0, 204 IPC_MSG_REPLY = 1 205 }; 206 207 /* Global Message Types */ 208 enum skl_ipc_glb_type { 209 IPC_GLB_GET_FW_VERSION = 0, /* Retrieves firmware version */ 210 IPC_GLB_LOAD_MULTIPLE_MODS = 15, 211 IPC_GLB_UNLOAD_MULTIPLE_MODS = 16, 212 IPC_GLB_CREATE_PPL = 17, 213 IPC_GLB_DELETE_PPL = 18, 214 IPC_GLB_SET_PPL_STATE = 19, 215 IPC_GLB_GET_PPL_STATE = 20, 216 IPC_GLB_GET_PPL_CONTEXT_SIZE = 21, 217 IPC_GLB_SAVE_PPL = 22, 218 IPC_GLB_RESTORE_PPL = 23, 219 IPC_GLB_LOAD_LIBRARY = 24, 220 IPC_GLB_NOTIFY = 26, 221 IPC_GLB_MAX_IPC_MSG_NUMBER = 31 /* Maximum message number */ 222 }; 223 224 enum skl_ipc_glb_reply { 225 IPC_GLB_REPLY_SUCCESS = 0, 226 227 IPC_GLB_REPLY_UNKNOWN_MSG_TYPE = 1, 228 IPC_GLB_REPLY_ERROR_INVALID_PARAM = 2, 229 230 IPC_GLB_REPLY_BUSY = 3, 231 IPC_GLB_REPLY_PENDING = 4, 232 IPC_GLB_REPLY_FAILURE = 5, 233 IPC_GLB_REPLY_INVALID_REQUEST = 6, 234 235 IPC_GLB_REPLY_OUT_OF_MEMORY = 7, 236 IPC_GLB_REPLY_OUT_OF_MIPS = 8, 237 238 IPC_GLB_REPLY_INVALID_RESOURCE_ID = 9, 239 IPC_GLB_REPLY_INVALID_RESOURCE_STATE = 10, 240 241 IPC_GLB_REPLY_MOD_MGMT_ERROR = 100, 242 IPC_GLB_REPLY_MOD_LOAD_CL_FAILED = 101, 243 IPC_GLB_REPLY_MOD_LOAD_INVALID_HASH = 102, 244 245 IPC_GLB_REPLY_MOD_UNLOAD_INST_EXIST = 103, 246 IPC_GLB_REPLY_MOD_NOT_INITIALIZED = 104, 247 248 IPC_GLB_REPLY_INVALID_CONFIG_PARAM_ID = 120, 249 IPC_GLB_REPLY_INVALID_CONFIG_DATA_LEN = 121, 250 IPC_GLB_REPLY_GATEWAY_NOT_INITIALIZED = 140, 251 IPC_GLB_REPLY_GATEWAY_NOT_EXIST = 141, 252 253 IPC_GLB_REPLY_PPL_NOT_INITIALIZED = 160, 254 IPC_GLB_REPLY_PPL_NOT_EXIST = 161, 255 IPC_GLB_REPLY_PPL_SAVE_FAILED = 162, 256 IPC_GLB_REPLY_PPL_RESTORE_FAILED = 163, 257 258 IPC_MAX_STATUS = ((1<<IPC_IXC_STATUS_BITS)-1) 259 }; 260 261 enum skl_ipc_notification_type { 262 IPC_GLB_NOTIFY_GLITCH = 0, 263 IPC_GLB_NOTIFY_OVERRUN = 1, 264 IPC_GLB_NOTIFY_UNDERRUN = 2, 265 IPC_GLB_NOTIFY_END_STREAM = 3, 266 IPC_GLB_NOTIFY_PHRASE_DETECTED = 4, 267 IPC_GLB_NOTIFY_RESOURCE_EVENT = 5, 268 IPC_GLB_NOTIFY_LOG_BUFFER_STATUS = 6, 269 IPC_GLB_NOTIFY_TIMESTAMP_CAPTURED = 7, 270 IPC_GLB_NOTIFY_FW_READY = 8 271 }; 272 273 /* Module Message Types */ 274 enum skl_ipc_module_msg { 275 IPC_MOD_INIT_INSTANCE = 0, 276 IPC_MOD_CONFIG_GET = 1, 277 IPC_MOD_CONFIG_SET = 2, 278 IPC_MOD_LARGE_CONFIG_GET = 3, 279 IPC_MOD_LARGE_CONFIG_SET = 4, 280 IPC_MOD_BIND = 5, 281 IPC_MOD_UNBIND = 6, 282 IPC_MOD_SET_DX = 7, 283 IPC_MOD_SET_D0IX = 8 284 }; 285 286 static void skl_ipc_tx_data_copy(struct ipc_message *msg, char *tx_data, 287 size_t tx_size) 288 { 289 if (tx_size) 290 memcpy(msg->tx_data, tx_data, tx_size); 291 } 292 293 static bool skl_ipc_is_dsp_busy(struct sst_dsp *dsp) 294 { 295 u32 hipci; 296 297 hipci = sst_dsp_shim_read_unlocked(dsp, SKL_ADSP_REG_HIPCI); 298 return (hipci & SKL_ADSP_REG_HIPCI_BUSY); 299 } 300 301 /* Lock to be held by caller */ 302 static void skl_ipc_tx_msg(struct sst_generic_ipc *ipc, struct ipc_message *msg) 303 { 304 struct skl_ipc_header *header = (struct skl_ipc_header *)(&msg->header); 305 306 if (msg->tx_size) 307 sst_dsp_outbox_write(ipc->dsp, msg->tx_data, msg->tx_size); 308 sst_dsp_shim_write_unlocked(ipc->dsp, SKL_ADSP_REG_HIPCIE, 309 header->extension); 310 sst_dsp_shim_write_unlocked(ipc->dsp, SKL_ADSP_REG_HIPCI, 311 header->primary | SKL_ADSP_REG_HIPCI_BUSY); 312 } 313 314 int skl_ipc_check_D0i0(struct sst_dsp *dsp, bool state) 315 { 316 int ret; 317 318 /* check D0i3 support */ 319 if (!dsp->fw_ops.set_state_D0i0) 320 return 0; 321 322 /* Attempt D0i0 or D0i3 based on state */ 323 if (state) 324 ret = dsp->fw_ops.set_state_D0i0(dsp); 325 else 326 ret = dsp->fw_ops.set_state_D0i3(dsp); 327 328 return ret; 329 } 330 331 static struct ipc_message *skl_ipc_reply_get_msg(struct sst_generic_ipc *ipc, 332 u64 ipc_header) 333 { 334 struct ipc_message *msg = NULL; 335 struct skl_ipc_header *header = (struct skl_ipc_header *)(&ipc_header); 336 337 if (list_empty(&ipc->rx_list)) { 338 dev_err(ipc->dev, "ipc: rx list is empty but received 0x%x\n", 339 header->primary); 340 goto out; 341 } 342 343 msg = list_first_entry(&ipc->rx_list, struct ipc_message, list); 344 345 out: 346 return msg; 347 348 } 349 350 static int skl_ipc_process_notification(struct sst_generic_ipc *ipc, 351 struct skl_ipc_header header) 352 { 353 struct skl_sst *skl = container_of(ipc, struct skl_sst, ipc); 354 355 if (IPC_GLB_NOTIFY_MSG_TYPE(header.primary)) { 356 switch (IPC_GLB_NOTIFY_TYPE(header.primary)) { 357 358 case IPC_GLB_NOTIFY_UNDERRUN: 359 dev_err(ipc->dev, "FW Underrun %x\n", header.primary); 360 break; 361 362 case IPC_GLB_NOTIFY_RESOURCE_EVENT: 363 dev_err(ipc->dev, "MCPS Budget Violation: %x\n", 364 header.primary); 365 break; 366 367 case IPC_GLB_NOTIFY_FW_READY: 368 skl->boot_complete = true; 369 wake_up(&skl->boot_wait); 370 break; 371 372 case IPC_GLB_NOTIFY_PHRASE_DETECTED: 373 dev_dbg(ipc->dev, "***** Phrase Detected **********\n"); 374 375 /* 376 * Per HW recomendation, After phrase detection, 377 * clear the CGCTL.MISCBDCGE. 378 * 379 * This will be set back on stream closure 380 */ 381 skl->enable_miscbdcge(ipc->dev, false); 382 skl->miscbdcg_disabled = true; 383 break; 384 385 default: 386 dev_err(ipc->dev, "ipc: Unhandled error msg=%x\n", 387 header.primary); 388 break; 389 } 390 } 391 392 return 0; 393 } 394 395 static int skl_ipc_set_reply_error_code(u32 reply) 396 { 397 switch (reply) { 398 case IPC_GLB_REPLY_OUT_OF_MEMORY: 399 return -ENOMEM; 400 401 case IPC_GLB_REPLY_BUSY: 402 return -EBUSY; 403 404 default: 405 return -EINVAL; 406 } 407 } 408 409 static void skl_ipc_process_reply(struct sst_generic_ipc *ipc, 410 struct skl_ipc_header header) 411 { 412 struct ipc_message *msg; 413 u32 reply = header.primary & IPC_GLB_REPLY_STATUS_MASK; 414 u64 *ipc_header = (u64 *)(&header); 415 struct skl_sst *skl = container_of(ipc, struct skl_sst, ipc); 416 unsigned long flags; 417 418 spin_lock_irqsave(&ipc->dsp->spinlock, flags); 419 msg = skl_ipc_reply_get_msg(ipc, *ipc_header); 420 spin_unlock_irqrestore(&ipc->dsp->spinlock, flags); 421 if (msg == NULL) { 422 dev_dbg(ipc->dev, "ipc: rx list is empty\n"); 423 return; 424 } 425 426 /* first process the header */ 427 if (reply == IPC_GLB_REPLY_SUCCESS) { 428 dev_dbg(ipc->dev, "ipc FW reply %x: success\n", header.primary); 429 /* copy the rx data from the mailbox */ 430 sst_dsp_inbox_read(ipc->dsp, msg->rx_data, msg->rx_size); 431 switch (IPC_GLB_NOTIFY_MSG_TYPE(header.primary)) { 432 case IPC_GLB_LOAD_MULTIPLE_MODS: 433 case IPC_GLB_LOAD_LIBRARY: 434 skl->mod_load_complete = true; 435 skl->mod_load_status = true; 436 wake_up(&skl->mod_load_wait); 437 break; 438 439 default: 440 break; 441 442 } 443 } else { 444 msg->errno = skl_ipc_set_reply_error_code(reply); 445 dev_err(ipc->dev, "ipc FW reply: reply=%d\n", reply); 446 dev_err(ipc->dev, "FW Error Code: %u\n", 447 ipc->dsp->fw_ops.get_fw_errcode(ipc->dsp)); 448 switch (IPC_GLB_NOTIFY_MSG_TYPE(header.primary)) { 449 case IPC_GLB_LOAD_MULTIPLE_MODS: 450 case IPC_GLB_LOAD_LIBRARY: 451 skl->mod_load_complete = true; 452 skl->mod_load_status = false; 453 wake_up(&skl->mod_load_wait); 454 break; 455 456 default: 457 break; 458 459 } 460 } 461 462 spin_lock_irqsave(&ipc->dsp->spinlock, flags); 463 list_del(&msg->list); 464 sst_ipc_tx_msg_reply_complete(ipc, msg); 465 spin_unlock_irqrestore(&ipc->dsp->spinlock, flags); 466 } 467 468 irqreturn_t skl_dsp_irq_thread_handler(int irq, void *context) 469 { 470 struct sst_dsp *dsp = context; 471 struct skl_sst *skl = sst_dsp_get_thread_context(dsp); 472 struct sst_generic_ipc *ipc = &skl->ipc; 473 struct skl_ipc_header header = {0}; 474 u32 hipcie, hipct, hipcte; 475 int ipc_irq = 0; 476 477 if (dsp->intr_status & SKL_ADSPIS_CL_DMA) 478 skl_cldma_process_intr(dsp); 479 480 /* Here we handle IPC interrupts only */ 481 if (!(dsp->intr_status & SKL_ADSPIS_IPC)) 482 return IRQ_NONE; 483 484 hipcie = sst_dsp_shim_read_unlocked(dsp, SKL_ADSP_REG_HIPCIE); 485 hipct = sst_dsp_shim_read_unlocked(dsp, SKL_ADSP_REG_HIPCT); 486 487 /* reply message from DSP */ 488 if (hipcie & SKL_ADSP_REG_HIPCIE_DONE) { 489 sst_dsp_shim_update_bits(dsp, SKL_ADSP_REG_HIPCCTL, 490 SKL_ADSP_REG_HIPCCTL_DONE, 0); 491 492 /* clear DONE bit - tell DSP we have completed the operation */ 493 sst_dsp_shim_update_bits_forced(dsp, SKL_ADSP_REG_HIPCIE, 494 SKL_ADSP_REG_HIPCIE_DONE, SKL_ADSP_REG_HIPCIE_DONE); 495 496 ipc_irq = 1; 497 498 /* unmask Done interrupt */ 499 sst_dsp_shim_update_bits(dsp, SKL_ADSP_REG_HIPCCTL, 500 SKL_ADSP_REG_HIPCCTL_DONE, SKL_ADSP_REG_HIPCCTL_DONE); 501 } 502 503 /* New message from DSP */ 504 if (hipct & SKL_ADSP_REG_HIPCT_BUSY) { 505 hipcte = sst_dsp_shim_read_unlocked(dsp, SKL_ADSP_REG_HIPCTE); 506 header.primary = hipct; 507 header.extension = hipcte; 508 dev_dbg(dsp->dev, "IPC irq: Firmware respond primary:%x\n", 509 header.primary); 510 dev_dbg(dsp->dev, "IPC irq: Firmware respond extension:%x\n", 511 header.extension); 512 513 if (IPC_GLB_NOTIFY_RSP_TYPE(header.primary)) { 514 /* Handle Immediate reply from DSP Core */ 515 skl_ipc_process_reply(ipc, header); 516 } else { 517 dev_dbg(dsp->dev, "IPC irq: Notification from firmware\n"); 518 skl_ipc_process_notification(ipc, header); 519 } 520 /* clear busy interrupt */ 521 sst_dsp_shim_update_bits_forced(dsp, SKL_ADSP_REG_HIPCT, 522 SKL_ADSP_REG_HIPCT_BUSY, SKL_ADSP_REG_HIPCT_BUSY); 523 ipc_irq = 1; 524 } 525 526 if (ipc_irq == 0) 527 return IRQ_NONE; 528 529 skl_ipc_int_enable(dsp); 530 531 /* continue to send any remaining messages... */ 532 schedule_work(&ipc->kwork); 533 534 return IRQ_HANDLED; 535 } 536 537 void skl_ipc_int_enable(struct sst_dsp *ctx) 538 { 539 sst_dsp_shim_update_bits(ctx, SKL_ADSP_REG_ADSPIC, 540 SKL_ADSPIC_IPC, SKL_ADSPIC_IPC); 541 } 542 543 void skl_ipc_int_disable(struct sst_dsp *ctx) 544 { 545 sst_dsp_shim_update_bits_unlocked(ctx, SKL_ADSP_REG_ADSPIC, 546 SKL_ADSPIC_IPC, 0); 547 } 548 549 void skl_ipc_op_int_enable(struct sst_dsp *ctx) 550 { 551 /* enable IPC DONE interrupt */ 552 sst_dsp_shim_update_bits(ctx, SKL_ADSP_REG_HIPCCTL, 553 SKL_ADSP_REG_HIPCCTL_DONE, SKL_ADSP_REG_HIPCCTL_DONE); 554 555 /* Enable IPC BUSY interrupt */ 556 sst_dsp_shim_update_bits(ctx, SKL_ADSP_REG_HIPCCTL, 557 SKL_ADSP_REG_HIPCCTL_BUSY, SKL_ADSP_REG_HIPCCTL_BUSY); 558 } 559 560 void skl_ipc_op_int_disable(struct sst_dsp *ctx) 561 { 562 /* disable IPC DONE interrupt */ 563 sst_dsp_shim_update_bits_unlocked(ctx, SKL_ADSP_REG_HIPCCTL, 564 SKL_ADSP_REG_HIPCCTL_DONE, 0); 565 566 /* Disable IPC BUSY interrupt */ 567 sst_dsp_shim_update_bits_unlocked(ctx, SKL_ADSP_REG_HIPCCTL, 568 SKL_ADSP_REG_HIPCCTL_BUSY, 0); 569 570 } 571 572 bool skl_ipc_int_status(struct sst_dsp *ctx) 573 { 574 return sst_dsp_shim_read_unlocked(ctx, 575 SKL_ADSP_REG_ADSPIS) & SKL_ADSPIS_IPC; 576 } 577 578 int skl_ipc_init(struct device *dev, struct skl_sst *skl) 579 { 580 struct sst_generic_ipc *ipc; 581 int err; 582 583 ipc = &skl->ipc; 584 ipc->dsp = skl->dsp; 585 ipc->dev = dev; 586 587 ipc->tx_data_max_size = SKL_ADSP_W1_SZ; 588 ipc->rx_data_max_size = SKL_ADSP_W0_UP_SZ; 589 590 err = sst_ipc_init(ipc); 591 if (err) 592 return err; 593 594 ipc->ops.tx_msg = skl_ipc_tx_msg; 595 ipc->ops.tx_data_copy = skl_ipc_tx_data_copy; 596 ipc->ops.is_dsp_busy = skl_ipc_is_dsp_busy; 597 598 return 0; 599 } 600 601 void skl_ipc_free(struct sst_generic_ipc *ipc) 602 { 603 /* Disable IPC DONE interrupt */ 604 sst_dsp_shim_update_bits(ipc->dsp, SKL_ADSP_REG_HIPCCTL, 605 SKL_ADSP_REG_HIPCCTL_DONE, 0); 606 607 /* Disable IPC BUSY interrupt */ 608 sst_dsp_shim_update_bits(ipc->dsp, SKL_ADSP_REG_HIPCCTL, 609 SKL_ADSP_REG_HIPCCTL_BUSY, 0); 610 611 sst_ipc_fini(ipc); 612 } 613 614 int skl_ipc_create_pipeline(struct sst_generic_ipc *ipc, 615 u16 ppl_mem_size, u8 ppl_type, u8 instance_id, u8 lp_mode) 616 { 617 struct skl_ipc_header header = {0}; 618 u64 *ipc_header = (u64 *)(&header); 619 int ret; 620 621 header.primary = IPC_MSG_TARGET(IPC_FW_GEN_MSG); 622 header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST); 623 header.primary |= IPC_GLB_TYPE(IPC_GLB_CREATE_PPL); 624 header.primary |= IPC_INSTANCE_ID(instance_id); 625 header.primary |= IPC_PPL_TYPE(ppl_type); 626 header.primary |= IPC_PPL_MEM_SIZE(ppl_mem_size); 627 628 header.extension = IPC_PPL_LP_MODE(lp_mode); 629 630 dev_dbg(ipc->dev, "In %s header=%d\n", __func__, header.primary); 631 ret = sst_ipc_tx_message_wait(ipc, *ipc_header, NULL, 0, NULL, 0); 632 if (ret < 0) { 633 dev_err(ipc->dev, "ipc: create pipeline fail, err: %d\n", ret); 634 return ret; 635 } 636 637 return ret; 638 } 639 EXPORT_SYMBOL_GPL(skl_ipc_create_pipeline); 640 641 int skl_ipc_delete_pipeline(struct sst_generic_ipc *ipc, u8 instance_id) 642 { 643 struct skl_ipc_header header = {0}; 644 u64 *ipc_header = (u64 *)(&header); 645 int ret; 646 647 header.primary = IPC_MSG_TARGET(IPC_FW_GEN_MSG); 648 header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST); 649 header.primary |= IPC_GLB_TYPE(IPC_GLB_DELETE_PPL); 650 header.primary |= IPC_INSTANCE_ID(instance_id); 651 652 dev_dbg(ipc->dev, "In %s header=%d\n", __func__, header.primary); 653 ret = sst_ipc_tx_message_wait(ipc, *ipc_header, NULL, 0, NULL, 0); 654 if (ret < 0) { 655 dev_err(ipc->dev, "ipc: delete pipeline failed, err %d\n", ret); 656 return ret; 657 } 658 659 return 0; 660 } 661 EXPORT_SYMBOL_GPL(skl_ipc_delete_pipeline); 662 663 int skl_ipc_set_pipeline_state(struct sst_generic_ipc *ipc, 664 u8 instance_id, enum skl_ipc_pipeline_state state) 665 { 666 struct skl_ipc_header header = {0}; 667 u64 *ipc_header = (u64 *)(&header); 668 int ret; 669 670 header.primary = IPC_MSG_TARGET(IPC_FW_GEN_MSG); 671 header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST); 672 header.primary |= IPC_GLB_TYPE(IPC_GLB_SET_PPL_STATE); 673 header.primary |= IPC_INSTANCE_ID(instance_id); 674 header.primary |= IPC_PPL_STATE(state); 675 676 dev_dbg(ipc->dev, "In %s header=%d\n", __func__, header.primary); 677 ret = sst_ipc_tx_message_wait(ipc, *ipc_header, NULL, 0, NULL, 0); 678 if (ret < 0) { 679 dev_err(ipc->dev, "ipc: set pipeline state failed, err: %d\n", ret); 680 return ret; 681 } 682 return ret; 683 } 684 EXPORT_SYMBOL_GPL(skl_ipc_set_pipeline_state); 685 686 int 687 skl_ipc_save_pipeline(struct sst_generic_ipc *ipc, u8 instance_id, int dma_id) 688 { 689 struct skl_ipc_header header = {0}; 690 u64 *ipc_header = (u64 *)(&header); 691 int ret; 692 693 header.primary = IPC_MSG_TARGET(IPC_FW_GEN_MSG); 694 header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST); 695 header.primary |= IPC_GLB_TYPE(IPC_GLB_SAVE_PPL); 696 header.primary |= IPC_INSTANCE_ID(instance_id); 697 698 header.extension = IPC_DMA_ID(dma_id); 699 dev_dbg(ipc->dev, "In %s header=%d\n", __func__, header.primary); 700 ret = sst_ipc_tx_message_wait(ipc, *ipc_header, NULL, 0, NULL, 0); 701 if (ret < 0) { 702 dev_err(ipc->dev, "ipc: save pipeline failed, err: %d\n", ret); 703 return ret; 704 } 705 706 return ret; 707 } 708 EXPORT_SYMBOL_GPL(skl_ipc_save_pipeline); 709 710 int skl_ipc_restore_pipeline(struct sst_generic_ipc *ipc, u8 instance_id) 711 { 712 struct skl_ipc_header header = {0}; 713 u64 *ipc_header = (u64 *)(&header); 714 int ret; 715 716 header.primary = IPC_MSG_TARGET(IPC_FW_GEN_MSG); 717 header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST); 718 header.primary |= IPC_GLB_TYPE(IPC_GLB_RESTORE_PPL); 719 header.primary |= IPC_INSTANCE_ID(instance_id); 720 721 dev_dbg(ipc->dev, "In %s header=%d\n", __func__, header.primary); 722 ret = sst_ipc_tx_message_wait(ipc, *ipc_header, NULL, 0, NULL, 0); 723 if (ret < 0) { 724 dev_err(ipc->dev, "ipc: restore pipeline failed, err: %d\n", ret); 725 return ret; 726 } 727 728 return ret; 729 } 730 EXPORT_SYMBOL_GPL(skl_ipc_restore_pipeline); 731 732 int skl_ipc_set_dx(struct sst_generic_ipc *ipc, u8 instance_id, 733 u16 module_id, struct skl_ipc_dxstate_info *dx) 734 { 735 struct skl_ipc_header header = {0}; 736 u64 *ipc_header = (u64 *)(&header); 737 int ret; 738 739 header.primary = IPC_MSG_TARGET(IPC_MOD_MSG); 740 header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST); 741 header.primary |= IPC_GLB_TYPE(IPC_MOD_SET_DX); 742 header.primary |= IPC_MOD_INSTANCE_ID(instance_id); 743 header.primary |= IPC_MOD_ID(module_id); 744 745 dev_dbg(ipc->dev, "In %s primary =%x ext=%x\n", __func__, 746 header.primary, header.extension); 747 ret = sst_ipc_tx_message_wait(ipc, *ipc_header, 748 dx, sizeof(*dx), NULL, 0); 749 if (ret < 0) { 750 dev_err(ipc->dev, "ipc: set dx failed, err %d\n", ret); 751 return ret; 752 } 753 754 return ret; 755 } 756 EXPORT_SYMBOL_GPL(skl_ipc_set_dx); 757 758 int skl_ipc_init_instance(struct sst_generic_ipc *ipc, 759 struct skl_ipc_init_instance_msg *msg, void *param_data) 760 { 761 struct skl_ipc_header header = {0}; 762 u64 *ipc_header = (u64 *)(&header); 763 int ret; 764 u32 *buffer = (u32 *)param_data; 765 /* param_block_size must be in dwords */ 766 u16 param_block_size = msg->param_data_size / sizeof(u32); 767 768 print_hex_dump_debug("Param data:", DUMP_PREFIX_NONE, 769 16, 4, buffer, param_block_size, false); 770 771 header.primary = IPC_MSG_TARGET(IPC_MOD_MSG); 772 header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST); 773 header.primary |= IPC_GLB_TYPE(IPC_MOD_INIT_INSTANCE); 774 header.primary |= IPC_MOD_INSTANCE_ID(msg->instance_id); 775 header.primary |= IPC_MOD_ID(msg->module_id); 776 777 header.extension = IPC_CORE_ID(msg->core_id); 778 header.extension |= IPC_PPL_INSTANCE_ID(msg->ppl_instance_id); 779 header.extension |= IPC_PARAM_BLOCK_SIZE(param_block_size); 780 header.extension |= IPC_DOMAIN(msg->domain); 781 782 dev_dbg(ipc->dev, "In %s primary =%x ext=%x\n", __func__, 783 header.primary, header.extension); 784 ret = sst_ipc_tx_message_wait(ipc, *ipc_header, param_data, 785 msg->param_data_size, NULL, 0); 786 787 if (ret < 0) { 788 dev_err(ipc->dev, "ipc: init instance failed\n"); 789 return ret; 790 } 791 792 return ret; 793 } 794 EXPORT_SYMBOL_GPL(skl_ipc_init_instance); 795 796 int skl_ipc_bind_unbind(struct sst_generic_ipc *ipc, 797 struct skl_ipc_bind_unbind_msg *msg) 798 { 799 struct skl_ipc_header header = {0}; 800 u64 *ipc_header = (u64 *)(&header); 801 u8 bind_unbind = msg->bind ? IPC_MOD_BIND : IPC_MOD_UNBIND; 802 int ret; 803 804 header.primary = IPC_MSG_TARGET(IPC_MOD_MSG); 805 header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST); 806 header.primary |= IPC_GLB_TYPE(bind_unbind); 807 header.primary |= IPC_MOD_INSTANCE_ID(msg->instance_id); 808 header.primary |= IPC_MOD_ID(msg->module_id); 809 810 header.extension = IPC_DST_MOD_ID(msg->dst_module_id); 811 header.extension |= IPC_DST_MOD_INSTANCE_ID(msg->dst_instance_id); 812 header.extension |= IPC_DST_QUEUE(msg->dst_queue); 813 header.extension |= IPC_SRC_QUEUE(msg->src_queue); 814 815 dev_dbg(ipc->dev, "In %s hdr=%x ext=%x\n", __func__, header.primary, 816 header.extension); 817 ret = sst_ipc_tx_message_wait(ipc, *ipc_header, NULL, 0, NULL, 0); 818 if (ret < 0) { 819 dev_err(ipc->dev, "ipc: bind/unbind failed\n"); 820 return ret; 821 } 822 823 return ret; 824 } 825 EXPORT_SYMBOL_GPL(skl_ipc_bind_unbind); 826 827 /* 828 * In order to load a module we need to send IPC to initiate that. DMA will 829 * performed to load the module memory. The FW supports multiple module load 830 * at single shot, so we can send IPC with N modules represented by 831 * module_cnt 832 */ 833 int skl_ipc_load_modules(struct sst_generic_ipc *ipc, 834 u8 module_cnt, void *data) 835 { 836 struct skl_ipc_header header = {0}; 837 u64 *ipc_header = (u64 *)(&header); 838 int ret; 839 840 header.primary = IPC_MSG_TARGET(IPC_FW_GEN_MSG); 841 header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST); 842 header.primary |= IPC_GLB_TYPE(IPC_GLB_LOAD_MULTIPLE_MODS); 843 header.primary |= IPC_LOAD_MODULE_CNT(module_cnt); 844 845 ret = sst_ipc_tx_message_nowait(ipc, *ipc_header, data, 846 (sizeof(u16) * module_cnt)); 847 if (ret < 0) 848 dev_err(ipc->dev, "ipc: load modules failed :%d\n", ret); 849 850 return ret; 851 } 852 EXPORT_SYMBOL_GPL(skl_ipc_load_modules); 853 854 int skl_ipc_unload_modules(struct sst_generic_ipc *ipc, u8 module_cnt, 855 void *data) 856 { 857 struct skl_ipc_header header = {0}; 858 u64 *ipc_header = (u64 *)(&header); 859 int ret; 860 861 header.primary = IPC_MSG_TARGET(IPC_FW_GEN_MSG); 862 header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST); 863 header.primary |= IPC_GLB_TYPE(IPC_GLB_UNLOAD_MULTIPLE_MODS); 864 header.primary |= IPC_LOAD_MODULE_CNT(module_cnt); 865 866 ret = sst_ipc_tx_message_wait(ipc, *ipc_header, data, 867 (sizeof(u16) * module_cnt), NULL, 0); 868 if (ret < 0) 869 dev_err(ipc->dev, "ipc: unload modules failed :%d\n", ret); 870 871 return ret; 872 } 873 EXPORT_SYMBOL_GPL(skl_ipc_unload_modules); 874 875 int skl_ipc_set_large_config(struct sst_generic_ipc *ipc, 876 struct skl_ipc_large_config_msg *msg, u32 *param) 877 { 878 struct skl_ipc_header header = {0}; 879 u64 *ipc_header = (u64 *)(&header); 880 int ret = 0; 881 size_t sz_remaining, tx_size, data_offset; 882 883 header.primary = IPC_MSG_TARGET(IPC_MOD_MSG); 884 header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST); 885 header.primary |= IPC_GLB_TYPE(IPC_MOD_LARGE_CONFIG_SET); 886 header.primary |= IPC_MOD_INSTANCE_ID(msg->instance_id); 887 header.primary |= IPC_MOD_ID(msg->module_id); 888 889 header.extension = IPC_DATA_OFFSET_SZ(msg->param_data_size); 890 header.extension |= IPC_LARGE_PARAM_ID(msg->large_param_id); 891 header.extension |= IPC_FINAL_BLOCK(0); 892 header.extension |= IPC_INITIAL_BLOCK(1); 893 894 sz_remaining = msg->param_data_size; 895 data_offset = 0; 896 while (sz_remaining != 0) { 897 tx_size = sz_remaining > SKL_ADSP_W1_SZ 898 ? SKL_ADSP_W1_SZ : sz_remaining; 899 if (tx_size == sz_remaining) 900 header.extension |= IPC_FINAL_BLOCK(1); 901 902 dev_dbg(ipc->dev, "In %s primary=%#x ext=%#x\n", __func__, 903 header.primary, header.extension); 904 dev_dbg(ipc->dev, "transmitting offset: %#x, size: %#x\n", 905 (unsigned)data_offset, (unsigned)tx_size); 906 ret = sst_ipc_tx_message_wait(ipc, *ipc_header, 907 ((char *)param) + data_offset, 908 tx_size, NULL, 0); 909 if (ret < 0) { 910 dev_err(ipc->dev, 911 "ipc: set large config fail, err: %d\n", ret); 912 return ret; 913 } 914 sz_remaining -= tx_size; 915 data_offset = msg->param_data_size - sz_remaining; 916 917 /* clear the fields */ 918 header.extension &= IPC_INITIAL_BLOCK_CLEAR; 919 header.extension &= IPC_DATA_OFFSET_SZ_CLEAR; 920 /* fill the fields */ 921 header.extension |= IPC_INITIAL_BLOCK(0); 922 header.extension |= IPC_DATA_OFFSET_SZ(data_offset); 923 } 924 925 return ret; 926 } 927 EXPORT_SYMBOL_GPL(skl_ipc_set_large_config); 928 929 int skl_ipc_get_large_config(struct sst_generic_ipc *ipc, 930 struct skl_ipc_large_config_msg *msg, u32 *param) 931 { 932 struct skl_ipc_header header = {0}; 933 u64 *ipc_header = (u64 *)(&header); 934 int ret = 0; 935 size_t sz_remaining, rx_size, data_offset; 936 937 header.primary = IPC_MSG_TARGET(IPC_MOD_MSG); 938 header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST); 939 header.primary |= IPC_GLB_TYPE(IPC_MOD_LARGE_CONFIG_GET); 940 header.primary |= IPC_MOD_INSTANCE_ID(msg->instance_id); 941 header.primary |= IPC_MOD_ID(msg->module_id); 942 943 header.extension = IPC_DATA_OFFSET_SZ(msg->param_data_size); 944 header.extension |= IPC_LARGE_PARAM_ID(msg->large_param_id); 945 header.extension |= IPC_FINAL_BLOCK(1); 946 header.extension |= IPC_INITIAL_BLOCK(1); 947 948 sz_remaining = msg->param_data_size; 949 data_offset = 0; 950 951 while (sz_remaining != 0) { 952 rx_size = sz_remaining > SKL_ADSP_W1_SZ 953 ? SKL_ADSP_W1_SZ : sz_remaining; 954 if (rx_size == sz_remaining) 955 header.extension |= IPC_FINAL_BLOCK(1); 956 957 ret = sst_ipc_tx_message_wait(ipc, *ipc_header, NULL, 0, 958 ((char *)param) + data_offset, 959 msg->param_data_size); 960 if (ret < 0) { 961 dev_err(ipc->dev, 962 "ipc: get large config fail, err: %d\n", ret); 963 return ret; 964 } 965 sz_remaining -= rx_size; 966 data_offset = msg->param_data_size - sz_remaining; 967 968 /* clear the fields */ 969 header.extension &= IPC_INITIAL_BLOCK_CLEAR; 970 header.extension &= IPC_DATA_OFFSET_SZ_CLEAR; 971 /* fill the fields */ 972 header.extension |= IPC_INITIAL_BLOCK(1); 973 header.extension |= IPC_DATA_OFFSET_SZ(data_offset); 974 } 975 976 return ret; 977 } 978 EXPORT_SYMBOL_GPL(skl_ipc_get_large_config); 979 980 int skl_sst_ipc_load_library(struct sst_generic_ipc *ipc, 981 u8 dma_id, u8 table_id, bool wait) 982 { 983 struct skl_ipc_header header = {0}; 984 u64 *ipc_header = (u64 *)(&header); 985 int ret = 0; 986 987 header.primary = IPC_MSG_TARGET(IPC_FW_GEN_MSG); 988 header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST); 989 header.primary |= IPC_GLB_TYPE(IPC_GLB_LOAD_LIBRARY); 990 header.primary |= IPC_MOD_INSTANCE_ID(table_id); 991 header.primary |= IPC_MOD_ID(dma_id); 992 993 if (wait) 994 ret = sst_ipc_tx_message_wait(ipc, *ipc_header, 995 NULL, 0, NULL, 0); 996 else 997 ret = sst_ipc_tx_message_nowait(ipc, *ipc_header, NULL, 0); 998 999 if (ret < 0) 1000 dev_err(ipc->dev, "ipc: load lib failed\n"); 1001 1002 return ret; 1003 } 1004 EXPORT_SYMBOL_GPL(skl_sst_ipc_load_library); 1005 1006 int skl_ipc_set_d0ix(struct sst_generic_ipc *ipc, struct skl_ipc_d0ix_msg *msg) 1007 { 1008 struct skl_ipc_header header = {0}; 1009 u64 *ipc_header = (u64 *)(&header); 1010 int ret; 1011 1012 header.primary = IPC_MSG_TARGET(IPC_MOD_MSG); 1013 header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST); 1014 header.primary |= IPC_GLB_TYPE(IPC_MOD_SET_D0IX); 1015 header.primary |= IPC_MOD_INSTANCE_ID(msg->instance_id); 1016 header.primary |= IPC_MOD_ID(msg->module_id); 1017 1018 header.extension = IPC_D0IX_WAKE(msg->wake); 1019 header.extension |= IPC_D0IX_STREAMING(msg->streaming); 1020 1021 dev_dbg(ipc->dev, "In %s primary=%x ext=%x\n", __func__, 1022 header.primary, header.extension); 1023 1024 /* 1025 * Use the nopm IPC here as we dont want it checking for D0iX 1026 */ 1027 ret = sst_ipc_tx_message_nopm(ipc, *ipc_header, NULL, 0, NULL, 0); 1028 if (ret < 0) 1029 dev_err(ipc->dev, "ipc: set d0ix failed, err %d\n", ret); 1030 1031 return ret; 1032 } 1033 EXPORT_SYMBOL_GPL(skl_ipc_set_d0ix); 1034