1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) 2 // 3 // This file is provided under a dual BSD/GPLv2 license. When using or 4 // redistributing this file, you may do so under either license. 5 // 6 // Copyright(c) 2018 Intel Corporation. All rights reserved. 7 // 8 // Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com> 9 // Ranjani Sridharan <ranjani.sridharan@linux.intel.com> 10 // Rander Wang <rander.wang@intel.com> 11 // Keyon Jie <yang.jie@linux.intel.com> 12 // 13 14 /* 15 * Hardware interface for audio DSP on Cannonlake. 16 */ 17 18 #include <sound/sof/ext_manifest4.h> 19 #include <sound/sof/ipc4/header.h> 20 #include <trace/events/sof_intel.h> 21 #include "../ipc4-priv.h" 22 #include "../ops.h" 23 #include "hda.h" 24 #include "hda-ipc.h" 25 #include "../sof-audio.h" 26 27 static const struct snd_sof_debugfs_map cnl_dsp_debugfs[] = { 28 {"hda", HDA_DSP_HDA_BAR, 0, 0x4000, SOF_DEBUGFS_ACCESS_ALWAYS}, 29 {"pp", HDA_DSP_PP_BAR, 0, 0x1000, SOF_DEBUGFS_ACCESS_ALWAYS}, 30 {"dsp", HDA_DSP_BAR, 0, 0x10000, SOF_DEBUGFS_ACCESS_ALWAYS}, 31 }; 32 33 static void cnl_ipc_host_done(struct snd_sof_dev *sdev); 34 static void cnl_ipc_dsp_done(struct snd_sof_dev *sdev); 35 36 irqreturn_t cnl_ipc4_irq_thread(int irq, void *context) 37 { 38 struct sof_ipc4_msg notification_data = {{ 0 }}; 39 struct snd_sof_dev *sdev = context; 40 bool ack_received = false; 41 bool ipc_irq = false; 42 u32 hipcida, hipctdr; 43 44 hipcida = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDA); 45 hipctdr = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCTDR); 46 if (hipcida & CNL_DSP_REG_HIPCIDA_DONE) { 47 /* DSP received the message */ 48 snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, 49 CNL_DSP_REG_HIPCCTL, 50 CNL_DSP_REG_HIPCCTL_DONE, 0); 51 cnl_ipc_dsp_done(sdev); 52 53 ipc_irq = true; 54 ack_received = true; 55 } 56 57 if (hipctdr & CNL_DSP_REG_HIPCTDR_BUSY) { 58 /* Message from DSP (reply or notification) */ 59 u32 hipctdd = snd_sof_dsp_read(sdev, HDA_DSP_BAR, 60 CNL_DSP_REG_HIPCTDD); 61 u32 primary = hipctdr & CNL_DSP_REG_HIPCTDR_MSG_MASK; 62 u32 extension = hipctdd & CNL_DSP_REG_HIPCTDD_MSG_MASK; 63 64 if (primary & SOF_IPC4_MSG_DIR_MASK) { 65 /* Reply received */ 66 if (likely(sdev->fw_state == SOF_FW_BOOT_COMPLETE)) { 67 struct sof_ipc4_msg *data = sdev->ipc->msg.reply_data; 68 69 data->primary = primary; 70 data->extension = extension; 71 72 spin_lock_irq(&sdev->ipc_lock); 73 74 snd_sof_ipc_get_reply(sdev); 75 cnl_ipc_host_done(sdev); 76 snd_sof_ipc_reply(sdev, data->primary); 77 78 spin_unlock_irq(&sdev->ipc_lock); 79 } else { 80 dev_dbg_ratelimited(sdev->dev, 81 "IPC reply before FW_READY: %#x|%#x\n", 82 primary, extension); 83 } 84 } else { 85 /* Notification received */ 86 notification_data.primary = primary; 87 notification_data.extension = extension; 88 89 sdev->ipc->msg.rx_data = ¬ification_data; 90 snd_sof_ipc_msgs_rx(sdev); 91 sdev->ipc->msg.rx_data = NULL; 92 93 /* Let DSP know that we have finished processing the message */ 94 cnl_ipc_host_done(sdev); 95 } 96 97 ipc_irq = true; 98 } 99 100 if (!ipc_irq) 101 /* This interrupt is not shared so no need to return IRQ_NONE. */ 102 dev_dbg_ratelimited(sdev->dev, "nothing to do in IPC IRQ thread\n"); 103 104 if (ack_received) { 105 struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata; 106 107 if (hdev->delayed_ipc_tx_msg) 108 cnl_ipc4_send_msg(sdev, hdev->delayed_ipc_tx_msg); 109 } 110 111 return IRQ_HANDLED; 112 } 113 114 irqreturn_t cnl_ipc_irq_thread(int irq, void *context) 115 { 116 struct snd_sof_dev *sdev = context; 117 u32 hipci; 118 u32 hipcida; 119 u32 hipctdr; 120 u32 hipctdd; 121 u32 msg; 122 u32 msg_ext; 123 bool ipc_irq = false; 124 125 hipcida = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDA); 126 hipctdr = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCTDR); 127 hipctdd = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCTDD); 128 hipci = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR); 129 130 /* reply message from DSP */ 131 if (hipcida & CNL_DSP_REG_HIPCIDA_DONE) { 132 msg_ext = hipci & CNL_DSP_REG_HIPCIDR_MSG_MASK; 133 msg = hipcida & CNL_DSP_REG_HIPCIDA_MSG_MASK; 134 135 trace_sof_intel_ipc_firmware_response(sdev, msg, msg_ext); 136 137 /* mask Done interrupt */ 138 snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, 139 CNL_DSP_REG_HIPCCTL, 140 CNL_DSP_REG_HIPCCTL_DONE, 0); 141 142 if (likely(sdev->fw_state == SOF_FW_BOOT_COMPLETE)) { 143 spin_lock_irq(&sdev->ipc_lock); 144 145 /* handle immediate reply from DSP core */ 146 hda_dsp_ipc_get_reply(sdev); 147 snd_sof_ipc_reply(sdev, msg); 148 149 cnl_ipc_dsp_done(sdev); 150 151 spin_unlock_irq(&sdev->ipc_lock); 152 } else { 153 dev_dbg_ratelimited(sdev->dev, "IPC reply before FW_READY: %#x\n", 154 msg); 155 } 156 157 ipc_irq = true; 158 } 159 160 /* new message from DSP */ 161 if (hipctdr & CNL_DSP_REG_HIPCTDR_BUSY) { 162 msg = hipctdr & CNL_DSP_REG_HIPCTDR_MSG_MASK; 163 msg_ext = hipctdd & CNL_DSP_REG_HIPCTDD_MSG_MASK; 164 165 trace_sof_intel_ipc_firmware_initiated(sdev, msg, msg_ext); 166 167 /* handle messages from DSP */ 168 if ((hipctdr & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC) { 169 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata; 170 bool non_recoverable = true; 171 172 /* 173 * This is a PANIC message! 174 * 175 * If it is arriving during firmware boot and it is not 176 * the last boot attempt then change the non_recoverable 177 * to false as the DSP might be able to boot in the next 178 * iteration(s) 179 */ 180 if (sdev->fw_state == SOF_FW_BOOT_IN_PROGRESS && 181 hda->boot_iteration < HDA_FW_BOOT_ATTEMPTS) 182 non_recoverable = false; 183 184 snd_sof_dsp_panic(sdev, HDA_DSP_PANIC_OFFSET(msg_ext), 185 non_recoverable); 186 } else { 187 snd_sof_ipc_msgs_rx(sdev); 188 } 189 190 cnl_ipc_host_done(sdev); 191 192 ipc_irq = true; 193 } 194 195 if (!ipc_irq) { 196 /* 197 * This interrupt is not shared so no need to return IRQ_NONE. 198 */ 199 dev_dbg_ratelimited(sdev->dev, 200 "nothing to do in IPC IRQ thread\n"); 201 } 202 203 return IRQ_HANDLED; 204 } 205 206 static void cnl_ipc_host_done(struct snd_sof_dev *sdev) 207 { 208 /* 209 * clear busy interrupt to tell dsp controller this 210 * interrupt has been accepted, not trigger it again 211 */ 212 snd_sof_dsp_update_bits_forced(sdev, HDA_DSP_BAR, 213 CNL_DSP_REG_HIPCTDR, 214 CNL_DSP_REG_HIPCTDR_BUSY, 215 CNL_DSP_REG_HIPCTDR_BUSY); 216 /* 217 * set done bit to ack dsp the msg has been 218 * processed and send reply msg to dsp 219 */ 220 snd_sof_dsp_update_bits_forced(sdev, HDA_DSP_BAR, 221 CNL_DSP_REG_HIPCTDA, 222 CNL_DSP_REG_HIPCTDA_DONE, 223 CNL_DSP_REG_HIPCTDA_DONE); 224 } 225 226 static void cnl_ipc_dsp_done(struct snd_sof_dev *sdev) 227 { 228 /* 229 * set DONE bit - tell DSP we have received the reply msg 230 * from DSP, and processed it, don't send more reply to host 231 */ 232 snd_sof_dsp_update_bits_forced(sdev, HDA_DSP_BAR, 233 CNL_DSP_REG_HIPCIDA, 234 CNL_DSP_REG_HIPCIDA_DONE, 235 CNL_DSP_REG_HIPCIDA_DONE); 236 237 /* unmask Done interrupt */ 238 snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, 239 CNL_DSP_REG_HIPCCTL, 240 CNL_DSP_REG_HIPCCTL_DONE, 241 CNL_DSP_REG_HIPCCTL_DONE); 242 } 243 244 static bool cnl_compact_ipc_compress(struct snd_sof_ipc_msg *msg, 245 u32 *dr, u32 *dd) 246 { 247 struct sof_ipc_pm_gate *pm_gate = msg->msg_data; 248 249 if (pm_gate->hdr.cmd == (SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_GATE)) { 250 /* send the compact message via the primary register */ 251 *dr = HDA_IPC_MSG_COMPACT | HDA_IPC_PM_GATE; 252 253 /* send payload via the extended data register */ 254 *dd = pm_gate->flags; 255 256 return true; 257 } 258 259 return false; 260 } 261 262 int cnl_ipc4_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg) 263 { 264 struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata; 265 struct sof_ipc4_msg *msg_data = msg->msg_data; 266 267 if (hda_ipc4_tx_is_busy(sdev)) { 268 hdev->delayed_ipc_tx_msg = msg; 269 return 0; 270 } 271 272 hdev->delayed_ipc_tx_msg = NULL; 273 274 /* send the message via mailbox */ 275 if (msg_data->data_size) 276 sof_mailbox_write(sdev, sdev->host_box.offset, msg_data->data_ptr, 277 msg_data->data_size); 278 279 snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDD, msg_data->extension); 280 snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR, 281 msg_data->primary | CNL_DSP_REG_HIPCIDR_BUSY); 282 283 hda_dsp_ipc4_schedule_d0i3_work(hdev, msg); 284 285 return 0; 286 } 287 288 int cnl_ipc_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg) 289 { 290 struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata; 291 struct sof_ipc_cmd_hdr *hdr; 292 u32 dr = 0; 293 u32 dd = 0; 294 295 /* 296 * Currently the only compact IPC supported is the PM_GATE 297 * IPC which is used for transitioning the DSP between the 298 * D0I0 and D0I3 states. And these are sent only during the 299 * set_power_state() op. Therefore, there will never be a case 300 * that a compact IPC results in the DSP exiting D0I3 without 301 * the host and FW being in sync. 302 */ 303 if (cnl_compact_ipc_compress(msg, &dr, &dd)) { 304 /* send the message via IPC registers */ 305 snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDD, 306 dd); 307 snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR, 308 CNL_DSP_REG_HIPCIDR_BUSY | dr); 309 return 0; 310 } 311 312 /* send the message via mailbox */ 313 sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data, 314 msg->msg_size); 315 snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR, 316 CNL_DSP_REG_HIPCIDR_BUSY); 317 318 hdr = msg->msg_data; 319 320 /* 321 * Use mod_delayed_work() to schedule the delayed work 322 * to avoid scheduling multiple workqueue items when 323 * IPCs are sent at a high-rate. mod_delayed_work() 324 * modifies the timer if the work is pending. 325 * Also, a new delayed work should not be queued after the 326 * CTX_SAVE IPC, which is sent before the DSP enters D3. 327 */ 328 if (hdr->cmd != (SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_CTX_SAVE)) 329 mod_delayed_work(system_wq, &hdev->d0i3_work, 330 msecs_to_jiffies(SOF_HDA_D0I3_WORK_DELAY_MS)); 331 332 return 0; 333 } 334 335 void cnl_ipc_dump(struct snd_sof_dev *sdev) 336 { 337 u32 hipcctl; 338 u32 hipcida; 339 u32 hipctdr; 340 341 hda_ipc_irq_dump(sdev); 342 343 /* read IPC status */ 344 hipcida = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDA); 345 hipcctl = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCCTL); 346 hipctdr = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCTDR); 347 348 /* dump the IPC regs */ 349 /* TODO: parse the raw msg */ 350 dev_err(sdev->dev, 351 "error: host status 0x%8.8x dsp status 0x%8.8x mask 0x%8.8x\n", 352 hipcida, hipctdr, hipcctl); 353 } 354 355 void cnl_ipc4_dump(struct snd_sof_dev *sdev) 356 { 357 u32 hipcidr, hipcidd, hipcida, hipctdr, hipctdd, hipctda, hipcctl; 358 359 hda_ipc_irq_dump(sdev); 360 361 hipcidr = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR); 362 hipcidd = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDD); 363 hipcida = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDA); 364 hipctdr = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCTDR); 365 hipctdd = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCTDD); 366 hipctda = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCTDA); 367 hipcctl = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCCTL); 368 369 /* dump the IPC regs */ 370 /* TODO: parse the raw msg */ 371 dev_err(sdev->dev, 372 "Host IPC initiator: %#x|%#x|%#x, target: %#x|%#x|%#x, ctl: %#x\n", 373 hipcidr, hipcidd, hipcida, hipctdr, hipctdd, hipctda, hipcctl); 374 } 375 376 /* cannonlake ops */ 377 struct snd_sof_dsp_ops sof_cnl_ops; 378 EXPORT_SYMBOL_NS(sof_cnl_ops, SND_SOC_SOF_INTEL_HDA_COMMON); 379 380 int sof_cnl_ops_init(struct snd_sof_dev *sdev) 381 { 382 /* common defaults */ 383 memcpy(&sof_cnl_ops, &sof_hda_common_ops, sizeof(struct snd_sof_dsp_ops)); 384 385 /* probe/remove/shutdown */ 386 sof_cnl_ops.shutdown = hda_dsp_shutdown; 387 388 /* ipc */ 389 if (sdev->pdata->ipc_type == SOF_IPC) { 390 /* doorbell */ 391 sof_cnl_ops.irq_thread = cnl_ipc_irq_thread; 392 393 /* ipc */ 394 sof_cnl_ops.send_msg = cnl_ipc_send_msg; 395 396 /* debug */ 397 sof_cnl_ops.ipc_dump = cnl_ipc_dump; 398 } 399 400 if (sdev->pdata->ipc_type == SOF_INTEL_IPC4) { 401 struct sof_ipc4_fw_data *ipc4_data; 402 403 sdev->private = devm_kzalloc(sdev->dev, sizeof(*ipc4_data), GFP_KERNEL); 404 if (!sdev->private) 405 return -ENOMEM; 406 407 ipc4_data = sdev->private; 408 ipc4_data->manifest_fw_hdr_offset = SOF_MAN4_FW_HDR_OFFSET; 409 410 ipc4_data->mtrace_type = SOF_IPC4_MTRACE_INTEL_CAVS_1_8; 411 412 /* External library loading support */ 413 ipc4_data->load_library = hda_dsp_ipc4_load_library; 414 415 /* doorbell */ 416 sof_cnl_ops.irq_thread = cnl_ipc4_irq_thread; 417 418 /* ipc */ 419 sof_cnl_ops.send_msg = cnl_ipc4_send_msg; 420 421 /* debug */ 422 sof_cnl_ops.ipc_dump = cnl_ipc4_dump; 423 } 424 425 /* set DAI driver ops */ 426 hda_set_dai_drv_ops(sdev, &sof_cnl_ops); 427 428 /* debug */ 429 sof_cnl_ops.debug_map = cnl_dsp_debugfs; 430 sof_cnl_ops.debug_map_count = ARRAY_SIZE(cnl_dsp_debugfs); 431 432 /* pre/post fw run */ 433 sof_cnl_ops.post_fw_run = hda_dsp_post_fw_run; 434 435 /* firmware run */ 436 sof_cnl_ops.run = hda_dsp_cl_boot_firmware; 437 438 /* dsp core get/put */ 439 sof_cnl_ops.core_get = hda_dsp_core_get; 440 441 return 0; 442 }; 443 EXPORT_SYMBOL_NS(sof_cnl_ops_init, SND_SOC_SOF_INTEL_HDA_COMMON); 444 445 const struct sof_intel_dsp_desc cnl_chip_info = { 446 /* Cannonlake */ 447 .cores_num = 4, 448 .init_core_mask = 1, 449 .host_managed_cores_mask = GENMASK(3, 0), 450 .ipc_req = CNL_DSP_REG_HIPCIDR, 451 .ipc_req_mask = CNL_DSP_REG_HIPCIDR_BUSY, 452 .ipc_ack = CNL_DSP_REG_HIPCIDA, 453 .ipc_ack_mask = CNL_DSP_REG_HIPCIDA_DONE, 454 .ipc_ctl = CNL_DSP_REG_HIPCCTL, 455 .rom_status_reg = HDA_DSP_SRAM_REG_ROM_STATUS, 456 .rom_init_timeout = 300, 457 .ssp_count = CNL_SSP_COUNT, 458 .ssp_base_offset = CNL_SSP_BASE_OFFSET, 459 .sdw_shim_base = SDW_SHIM_BASE, 460 .sdw_alh_base = SDW_ALH_BASE, 461 .d0i3_offset = SOF_HDA_VS_D0I3C, 462 .read_sdw_lcount = hda_sdw_check_lcount_common, 463 .enable_sdw_irq = hda_common_enable_sdw_irq, 464 .check_sdw_irq = hda_common_check_sdw_irq, 465 .check_ipc_irq = hda_dsp_check_ipc_irq, 466 .cl_init = cl_dsp_init, 467 .power_down_dsp = hda_power_down_dsp, 468 .disable_interrupts = hda_dsp_disable_interrupts, 469 .hw_ip_version = SOF_INTEL_CAVS_1_8, 470 }; 471 EXPORT_SYMBOL_NS(cnl_chip_info, SND_SOC_SOF_INTEL_HDA_COMMON); 472 473 /* 474 * JasperLake is technically derived from IceLake, and should be in 475 * described in icl.c. However since JasperLake was designed with 476 * two cores, it cannot support the IceLake-specific power-up sequences 477 * which rely on core3. To simplify, JasperLake uses the CannonLake ops and 478 * is described in cnl.c 479 */ 480 const struct sof_intel_dsp_desc jsl_chip_info = { 481 /* Jasperlake */ 482 .cores_num = 2, 483 .init_core_mask = 1, 484 .host_managed_cores_mask = GENMASK(1, 0), 485 .ipc_req = CNL_DSP_REG_HIPCIDR, 486 .ipc_req_mask = CNL_DSP_REG_HIPCIDR_BUSY, 487 .ipc_ack = CNL_DSP_REG_HIPCIDA, 488 .ipc_ack_mask = CNL_DSP_REG_HIPCIDA_DONE, 489 .ipc_ctl = CNL_DSP_REG_HIPCCTL, 490 .rom_status_reg = HDA_DSP_SRAM_REG_ROM_STATUS, 491 .rom_init_timeout = 300, 492 .ssp_count = ICL_SSP_COUNT, 493 .ssp_base_offset = CNL_SSP_BASE_OFFSET, 494 .sdw_shim_base = SDW_SHIM_BASE, 495 .sdw_alh_base = SDW_ALH_BASE, 496 .d0i3_offset = SOF_HDA_VS_D0I3C, 497 .read_sdw_lcount = hda_sdw_check_lcount_common, 498 .enable_sdw_irq = hda_common_enable_sdw_irq, 499 .check_sdw_irq = hda_common_check_sdw_irq, 500 .check_ipc_irq = hda_dsp_check_ipc_irq, 501 .cl_init = cl_dsp_init, 502 .power_down_dsp = hda_power_down_dsp, 503 .disable_interrupts = hda_dsp_disable_interrupts, 504 .hw_ip_version = SOF_INTEL_CAVS_2_0, 505 }; 506 EXPORT_SYMBOL_NS(jsl_chip_info, SND_SOC_SOF_INTEL_HDA_COMMON); 507