1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
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.
6 // Copyright(c) 2018 Intel Corporation. All rights reserved.
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>
15 * Hardware interface for generic Intel audio DSP HDA IP
18 #include <linux/module.h>
19 #include <sound/hdaudio_ext.h>
20 #include <sound/hda_register.h>
21 #include <sound/hda-mlink.h>
22 #include <trace/events/sof_intel.h>
23 #include "../sof-audio.h"
28 static bool hda_enable_trace_D0I3_S0;
29 #if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG)
30 module_param_named(enable_trace_D0I3_S0, hda_enable_trace_D0I3_S0, bool, 0444);
31 MODULE_PARM_DESC(enable_trace_D0I3_S0,
32 "SOF HDA enable trace when the DSP is in D0I3 in S0");
39 static int hda_dsp_core_reset_enter(struct snd_sof_dev *sdev, unsigned int core_mask)
45 /* set reset bits for cores */
46 reset = HDA_DSP_ADSPCS_CRST_MASK(core_mask);
47 snd_sof_dsp_update_bits_unlocked(sdev, HDA_DSP_BAR,
51 /* poll with timeout to check if operation successful */
52 ret = snd_sof_dsp_read_poll_timeout(sdev, HDA_DSP_BAR,
53 HDA_DSP_REG_ADSPCS, adspcs,
54 ((adspcs & reset) == reset),
55 HDA_DSP_REG_POLL_INTERVAL_US,
56 HDA_DSP_RESET_TIMEOUT_US);
59 "error: %s: timeout on HDA_DSP_REG_ADSPCS read\n",
64 /* has core entered reset ? */
65 adspcs = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
67 if ((adspcs & HDA_DSP_ADSPCS_CRST_MASK(core_mask)) !=
68 HDA_DSP_ADSPCS_CRST_MASK(core_mask)) {
70 "error: reset enter failed: core_mask %x adspcs 0x%x\n",
78 static int hda_dsp_core_reset_leave(struct snd_sof_dev *sdev, unsigned int core_mask)
84 /* clear reset bits for cores */
85 snd_sof_dsp_update_bits_unlocked(sdev, HDA_DSP_BAR,
87 HDA_DSP_ADSPCS_CRST_MASK(core_mask),
90 /* poll with timeout to check if operation successful */
91 crst = HDA_DSP_ADSPCS_CRST_MASK(core_mask);
92 ret = snd_sof_dsp_read_poll_timeout(sdev, HDA_DSP_BAR,
93 HDA_DSP_REG_ADSPCS, adspcs,
95 HDA_DSP_REG_POLL_INTERVAL_US,
96 HDA_DSP_RESET_TIMEOUT_US);
100 "error: %s: timeout on HDA_DSP_REG_ADSPCS read\n",
105 /* has core left reset ? */
106 adspcs = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
108 if ((adspcs & HDA_DSP_ADSPCS_CRST_MASK(core_mask)) != 0) {
110 "error: reset leave failed: core_mask %x adspcs 0x%x\n",
118 int hda_dsp_core_stall_reset(struct snd_sof_dev *sdev, unsigned int core_mask)
121 snd_sof_dsp_update_bits_unlocked(sdev, HDA_DSP_BAR,
123 HDA_DSP_ADSPCS_CSTALL_MASK(core_mask),
124 HDA_DSP_ADSPCS_CSTALL_MASK(core_mask));
126 /* set reset state */
127 return hda_dsp_core_reset_enter(sdev, core_mask);
130 bool hda_dsp_core_is_enabled(struct snd_sof_dev *sdev, unsigned int core_mask)
135 val = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPCS);
137 #define MASK_IS_EQUAL(v, m, field) ({ \
142 is_enable = MASK_IS_EQUAL(val, core_mask, HDA_DSP_ADSPCS_CPA_MASK) &&
143 MASK_IS_EQUAL(val, core_mask, HDA_DSP_ADSPCS_SPA_MASK) &&
144 !(val & HDA_DSP_ADSPCS_CRST_MASK(core_mask)) &&
145 !(val & HDA_DSP_ADSPCS_CSTALL_MASK(core_mask));
149 dev_dbg(sdev->dev, "DSP core(s) enabled? %d : core_mask %x\n",
150 is_enable, core_mask);
155 int hda_dsp_core_run(struct snd_sof_dev *sdev, unsigned int core_mask)
159 /* leave reset state */
160 ret = hda_dsp_core_reset_leave(sdev, core_mask);
165 dev_dbg(sdev->dev, "unstall/run core: core_mask = %x\n", core_mask);
166 snd_sof_dsp_update_bits_unlocked(sdev, HDA_DSP_BAR,
168 HDA_DSP_ADSPCS_CSTALL_MASK(core_mask),
171 /* is core now running ? */
172 if (!hda_dsp_core_is_enabled(sdev, core_mask)) {
173 hda_dsp_core_stall_reset(sdev, core_mask);
174 dev_err(sdev->dev, "error: DSP start core failed: core_mask %x\n",
186 int hda_dsp_core_power_up(struct snd_sof_dev *sdev, unsigned int core_mask)
188 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
189 const struct sof_intel_dsp_desc *chip = hda->desc;
194 /* restrict core_mask to host managed cores mask */
195 core_mask &= chip->host_managed_cores_mask;
196 /* return if core_mask is not valid */
201 snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPCS,
202 HDA_DSP_ADSPCS_SPA_MASK(core_mask),
203 HDA_DSP_ADSPCS_SPA_MASK(core_mask));
205 /* poll with timeout to check if operation successful */
206 cpa = HDA_DSP_ADSPCS_CPA_MASK(core_mask);
207 ret = snd_sof_dsp_read_poll_timeout(sdev, HDA_DSP_BAR,
208 HDA_DSP_REG_ADSPCS, adspcs,
209 (adspcs & cpa) == cpa,
210 HDA_DSP_REG_POLL_INTERVAL_US,
211 HDA_DSP_RESET_TIMEOUT_US);
214 "error: %s: timeout on HDA_DSP_REG_ADSPCS read\n",
219 /* did core power up ? */
220 adspcs = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
222 if ((adspcs & HDA_DSP_ADSPCS_CPA_MASK(core_mask)) !=
223 HDA_DSP_ADSPCS_CPA_MASK(core_mask)) {
225 "error: power up core failed core_mask %xadspcs 0x%x\n",
233 static int hda_dsp_core_power_down(struct snd_sof_dev *sdev, unsigned int core_mask)
239 snd_sof_dsp_update_bits_unlocked(sdev, HDA_DSP_BAR,
241 HDA_DSP_ADSPCS_SPA_MASK(core_mask), 0);
243 ret = snd_sof_dsp_read_poll_timeout(sdev, HDA_DSP_BAR,
244 HDA_DSP_REG_ADSPCS, adspcs,
245 !(adspcs & HDA_DSP_ADSPCS_CPA_MASK(core_mask)),
246 HDA_DSP_REG_POLL_INTERVAL_US,
247 HDA_DSP_PD_TIMEOUT * USEC_PER_MSEC);
250 "error: %s: timeout on HDA_DSP_REG_ADSPCS read\n",
256 int hda_dsp_enable_core(struct snd_sof_dev *sdev, unsigned int core_mask)
258 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
259 const struct sof_intel_dsp_desc *chip = hda->desc;
262 /* restrict core_mask to host managed cores mask */
263 core_mask &= chip->host_managed_cores_mask;
265 /* return if core_mask is not valid or cores are already enabled */
266 if (!core_mask || hda_dsp_core_is_enabled(sdev, core_mask))
270 ret = hda_dsp_core_power_up(sdev, core_mask);
272 dev_err(sdev->dev, "error: dsp core power up failed: core_mask %x\n",
277 return hda_dsp_core_run(sdev, core_mask);
280 int hda_dsp_core_reset_power_down(struct snd_sof_dev *sdev,
281 unsigned int core_mask)
283 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
284 const struct sof_intel_dsp_desc *chip = hda->desc;
287 /* restrict core_mask to host managed cores mask */
288 core_mask &= chip->host_managed_cores_mask;
290 /* return if core_mask is not valid */
294 /* place core in reset prior to power down */
295 ret = hda_dsp_core_stall_reset(sdev, core_mask);
297 dev_err(sdev->dev, "error: dsp core reset failed: core_mask %x\n",
302 /* power down core */
303 ret = hda_dsp_core_power_down(sdev, core_mask);
305 dev_err(sdev->dev, "error: dsp core power down fail mask %x: %d\n",
310 /* make sure we are in OFF state */
311 if (hda_dsp_core_is_enabled(sdev, core_mask)) {
312 dev_err(sdev->dev, "error: dsp core disable fail mask %x: %d\n",
320 void hda_dsp_ipc_int_enable(struct snd_sof_dev *sdev)
322 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
323 const struct sof_intel_dsp_desc *chip = hda->desc;
325 if (sdev->dspless_mode_selected)
328 /* enable IPC DONE and BUSY interrupts */
329 snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, chip->ipc_ctl,
330 HDA_DSP_REG_HIPCCTL_DONE | HDA_DSP_REG_HIPCCTL_BUSY,
331 HDA_DSP_REG_HIPCCTL_DONE | HDA_DSP_REG_HIPCCTL_BUSY);
333 /* enable IPC interrupt */
334 snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPIC,
335 HDA_DSP_ADSPIC_IPC, HDA_DSP_ADSPIC_IPC);
338 void hda_dsp_ipc_int_disable(struct snd_sof_dev *sdev)
340 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
341 const struct sof_intel_dsp_desc *chip = hda->desc;
343 if (sdev->dspless_mode_selected)
346 /* disable IPC interrupt */
347 snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPIC,
348 HDA_DSP_ADSPIC_IPC, 0);
350 /* disable IPC BUSY and DONE interrupt */
351 snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, chip->ipc_ctl,
352 HDA_DSP_REG_HIPCCTL_BUSY | HDA_DSP_REG_HIPCCTL_DONE, 0);
355 static int hda_dsp_wait_d0i3c_done(struct snd_sof_dev *sdev)
357 int retry = HDA_DSP_REG_POLL_RETRY_COUNT;
358 struct snd_sof_pdata *pdata = sdev->pdata;
359 const struct sof_intel_dsp_desc *chip;
361 chip = get_chip_info(pdata);
362 while (snd_sof_dsp_read8(sdev, HDA_DSP_HDA_BAR, chip->d0i3_offset) &
363 SOF_HDA_VS_D0I3C_CIP) {
366 usleep_range(10, 15);
372 static int hda_dsp_send_pm_gate_ipc(struct snd_sof_dev *sdev, u32 flags)
374 const struct sof_ipc_pm_ops *pm_ops = sof_ipc_get_ops(sdev, pm);
376 if (pm_ops && pm_ops->set_pm_gate)
377 return pm_ops->set_pm_gate(sdev, flags);
382 static int hda_dsp_update_d0i3c_register(struct snd_sof_dev *sdev, u8 value)
384 struct snd_sof_pdata *pdata = sdev->pdata;
385 const struct sof_intel_dsp_desc *chip;
389 chip = get_chip_info(pdata);
391 /* Write to D0I3C after Command-In-Progress bit is cleared */
392 ret = hda_dsp_wait_d0i3c_done(sdev);
394 dev_err(sdev->dev, "CIP timeout before D0I3C update!\n");
398 /* Update D0I3C register */
399 snd_sof_dsp_update8(sdev, HDA_DSP_HDA_BAR, chip->d0i3_offset,
400 SOF_HDA_VS_D0I3C_I3, value);
403 * The value written to the D0I3C::I3 bit may not be taken into account immediately.
404 * A delay is recommended before checking if D0I3C::CIP is cleared
406 usleep_range(30, 40);
408 /* Wait for cmd in progress to be cleared before exiting the function */
409 ret = hda_dsp_wait_d0i3c_done(sdev);
411 dev_err(sdev->dev, "CIP timeout after D0I3C update!\n");
415 reg = snd_sof_dsp_read8(sdev, HDA_DSP_HDA_BAR, chip->d0i3_offset);
416 /* Confirm d0i3 state changed with paranoia check */
417 if ((reg ^ value) & SOF_HDA_VS_D0I3C_I3) {
418 dev_err(sdev->dev, "failed to update D0I3C!\n");
422 trace_sof_intel_D0I3C_updated(sdev, reg);
428 * d0i3 streaming is enabled if all the active streams can
429 * work in d0i3 state and playback is enabled
431 static bool hda_dsp_d0i3_streaming_applicable(struct snd_sof_dev *sdev)
433 struct snd_pcm_substream *substream;
434 struct snd_sof_pcm *spcm;
435 bool playback_active = false;
438 list_for_each_entry(spcm, &sdev->pcm_list, list) {
439 for_each_pcm_streams(dir) {
440 substream = spcm->stream[dir].substream;
441 if (!substream || !substream->runtime)
444 if (!spcm->stream[dir].d0i3_compatible)
447 if (dir == SNDRV_PCM_STREAM_PLAYBACK)
448 playback_active = true;
452 return playback_active;
455 static int hda_dsp_set_D0_state(struct snd_sof_dev *sdev,
456 const struct sof_dsp_power_state *target_state)
463 * Sanity check for illegal state transitions
464 * The only allowed transitions are:
469 switch (sdev->dsp_power_state.state) {
471 /* Follow the sequence below for D0 substate transitions */
474 /* Follow regular flow for D3 -> D0 transition */
477 dev_err(sdev->dev, "error: transition from %d to %d not allowed\n",
478 sdev->dsp_power_state.state, target_state->state);
482 /* Set flags and register value for D0 target substate */
483 if (target_state->substate == SOF_HDA_DSP_PM_D0I3) {
484 value = SOF_HDA_VS_D0I3C_I3;
487 * Trace DMA need to be disabled when the DSP enters
488 * D0I3 for S0Ix suspend, but it can be kept enabled
489 * when the DSP enters D0I3 while the system is in S0
492 if (!sdev->fw_trace_is_supported ||
493 !hda_enable_trace_D0I3_S0 ||
494 sdev->system_suspend_target != SOF_SUSPEND_NONE)
495 flags = HDA_PM_NO_DMA_TRACE;
497 if (hda_dsp_d0i3_streaming_applicable(sdev))
498 flags |= HDA_PM_PG_STREAMING;
500 /* prevent power gating in D0I0 */
504 /* update D0I3C register */
505 ret = hda_dsp_update_d0i3c_register(sdev, value);
510 * Notify the DSP of the state change.
511 * If this IPC fails, revert the D0I3C register update in order
512 * to prevent partial state change.
514 ret = hda_dsp_send_pm_gate_ipc(sdev, flags);
517 "error: PM_GATE ipc error %d\n", ret);
524 /* fallback to the previous register value */
525 value = value ? 0 : SOF_HDA_VS_D0I3C_I3;
528 * This can fail but return the IPC error to signal that
529 * the state change failed.
531 hda_dsp_update_d0i3c_register(sdev, value);
536 /* helper to log DSP state */
537 static void hda_dsp_state_log(struct snd_sof_dev *sdev)
539 switch (sdev->dsp_power_state.state) {
541 switch (sdev->dsp_power_state.substate) {
542 case SOF_HDA_DSP_PM_D0I0:
543 dev_dbg(sdev->dev, "Current DSP power state: D0I0\n");
545 case SOF_HDA_DSP_PM_D0I3:
546 dev_dbg(sdev->dev, "Current DSP power state: D0I3\n");
549 dev_dbg(sdev->dev, "Unknown DSP D0 substate: %d\n",
550 sdev->dsp_power_state.substate);
555 dev_dbg(sdev->dev, "Current DSP power state: D1\n");
558 dev_dbg(sdev->dev, "Current DSP power state: D2\n");
561 dev_dbg(sdev->dev, "Current DSP power state: D3\n");
564 dev_dbg(sdev->dev, "Unknown DSP power state: %d\n",
565 sdev->dsp_power_state.state);
571 * All DSP power state transitions are initiated by the driver.
572 * If the requested state change fails, the error is simply returned.
573 * Further state transitions are attempted only when the set_power_save() op
574 * is called again either because of a new IPC sent to the DSP or
575 * during system suspend/resume.
577 static int hda_dsp_set_power_state(struct snd_sof_dev *sdev,
578 const struct sof_dsp_power_state *target_state)
582 switch (target_state->state) {
584 ret = hda_dsp_set_D0_state(sdev, target_state);
587 /* The only allowed transition is: D0I0 -> D3 */
588 if (sdev->dsp_power_state.state == SOF_DSP_PM_D0 &&
589 sdev->dsp_power_state.substate == SOF_HDA_DSP_PM_D0I0)
593 "error: transition from %d to %d not allowed\n",
594 sdev->dsp_power_state.state, target_state->state);
597 dev_err(sdev->dev, "error: target state unsupported %d\n",
598 target_state->state);
603 "failed to set requested target DSP state %d substate %d\n",
604 target_state->state, target_state->substate);
608 sdev->dsp_power_state = *target_state;
609 hda_dsp_state_log(sdev);
613 int hda_dsp_set_power_state_ipc3(struct snd_sof_dev *sdev,
614 const struct sof_dsp_power_state *target_state)
617 * When the DSP is already in D0I3 and the target state is D0I3,
618 * it could be the case that the DSP is in D0I3 during S0
619 * and the system is suspending to S0Ix. Therefore,
620 * hda_dsp_set_D0_state() must be called to disable trace DMA
621 * by sending the PM_GATE IPC to the FW.
623 if (target_state->substate == SOF_HDA_DSP_PM_D0I3 &&
624 sdev->system_suspend_target == SOF_SUSPEND_S0IX)
625 return hda_dsp_set_power_state(sdev, target_state);
628 * For all other cases, return without doing anything if
629 * the DSP is already in the target state.
631 if (target_state->state == sdev->dsp_power_state.state &&
632 target_state->substate == sdev->dsp_power_state.substate)
635 return hda_dsp_set_power_state(sdev, target_state);
638 int hda_dsp_set_power_state_ipc4(struct snd_sof_dev *sdev,
639 const struct sof_dsp_power_state *target_state)
641 /* Return without doing anything if the DSP is already in the target state */
642 if (target_state->state == sdev->dsp_power_state.state &&
643 target_state->substate == sdev->dsp_power_state.substate)
646 return hda_dsp_set_power_state(sdev, target_state);
650 * Audio DSP states may transform as below:-
652 * Opportunistic D0I3 in S0
653 * Runtime +---------------------+ Delayed D0i3 work timeout
654 * suspend | +--------------------+
655 * +------------+ D0I0(active) | |
656 * | | <---------------+ |
657 * | +--------> | New IPC | |
658 * | |Runtime +--^--+---------^--+--+ (via mailbox) | |
659 * | |resume | | | | | |
661 * | | System| | | | | |
662 * | | resume| | S3/S0IX | | | |
663 * | | | | suspend | | S0IX | |
664 * | | | | | |suspend | |
667 * +-v---+-----------+--v-------+ | | +------+----v----+
668 * | | | +-----------> |
669 * | D3 (suspended) | | | D0I3 |
670 * | | +--------------+ |
671 * | | System resume | |
672 * +----------------------------+ +----------------+
674 * S0IX suspend: The DSP is in D0I3 if any D0I3-compatible streams
675 * ignored the suspend trigger. Otherwise the DSP
679 static int hda_suspend(struct snd_sof_dev *sdev, bool runtime_suspend)
681 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
682 const struct sof_intel_dsp_desc *chip = hda->desc;
683 struct hdac_bus *bus = sof_to_bus(sdev);
687 * The memory used for IMR boot loses its content in deeper than S3 state
688 * We must not try IMR boot on next power up (as it will fail).
690 * In case of firmware crash or boot failure set the skip_imr_boot to true
691 * as well in order to try to re-load the firmware to do a 'cold' boot.
693 if (sdev->system_suspend_target > SOF_SUSPEND_S3 ||
694 sdev->fw_state == SOF_FW_CRASHED ||
695 sdev->fw_state == SOF_FW_BOOT_FAILED)
696 hda->skip_imr_boot = true;
698 ret = chip->disable_interrupts(sdev);
702 /* make sure that no irq handler is pending before shutdown */
703 synchronize_irq(sdev->ipc_irq);
705 hda_codec_jack_wake_enable(sdev, runtime_suspend);
707 /* power down all hda links */
708 hda_bus_ml_suspend(bus);
710 if (sdev->dspless_mode_selected)
713 ret = chip->power_down_dsp(sdev);
715 dev_err(sdev->dev, "failed to power down DSP during suspend\n");
719 /* reset ref counts for all cores */
720 for (j = 0; j < chip->cores_num; j++)
721 sdev->dsp_core_ref_count[j] = 0;
723 /* disable ppcap interrupt */
724 hda_dsp_ctrl_ppcap_enable(sdev, false);
725 hda_dsp_ctrl_ppcap_int_enable(sdev, false);
728 /* disable hda bus irq and streams */
729 hda_dsp_ctrl_stop_chip(sdev);
731 /* disable LP retention mode */
732 snd_sof_pci_update_bits(sdev, PCI_PGCTL,
733 PCI_PGCTL_LSRMD_MASK, PCI_PGCTL_LSRMD_MASK);
735 /* reset controller */
736 ret = hda_dsp_ctrl_link_reset(sdev, true);
739 "error: failed to reset controller during suspend\n");
743 /* display codec can powered off after link reset */
744 hda_codec_i915_display_power(sdev, false);
749 static int hda_resume(struct snd_sof_dev *sdev, bool runtime_resume)
751 const struct sof_intel_dsp_desc *chip;
754 /* display codec must be powered before link reset */
755 hda_codec_i915_display_power(sdev, true);
758 * clear TCSEL to clear playback on some HD Audio
759 * codecs. PCI TCSEL is defined in the Intel manuals.
761 snd_sof_pci_update_bits(sdev, PCI_TCSEL, 0x07, 0);
763 /* reset and start hda controller */
764 ret = hda_dsp_ctrl_init_chip(sdev);
767 "error: failed to start controller after resume\n");
771 /* check jack status */
772 if (runtime_resume) {
773 hda_codec_jack_wake_enable(sdev, false);
774 if (sdev->system_suspend_target == SOF_SUSPEND_NONE)
775 hda_codec_jack_check(sdev);
778 if (!sdev->dspless_mode_selected) {
779 /* enable ppcap interrupt */
780 hda_dsp_ctrl_ppcap_enable(sdev, true);
781 hda_dsp_ctrl_ppcap_int_enable(sdev, true);
784 chip = get_chip_info(sdev->pdata);
785 if (chip && chip->hw_ip_version >= SOF_INTEL_ACE_2_0)
786 hda_sdw_int_enable(sdev, true);
789 /* display codec can powered off after controller init */
790 hda_codec_i915_display_power(sdev, false);
795 int hda_dsp_resume(struct snd_sof_dev *sdev)
797 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
798 struct hdac_bus *bus = sof_to_bus(sdev);
799 struct pci_dev *pci = to_pci_dev(sdev->dev);
800 const struct sof_dsp_power_state target_state = {
801 .state = SOF_DSP_PM_D0,
802 .substate = SOF_HDA_DSP_PM_D0I0,
806 /* resume from D0I3 */
807 if (sdev->dsp_power_state.state == SOF_DSP_PM_D0) {
808 ret = hda_bus_ml_resume(bus);
811 "error %d in %s: failed to power up links",
816 /* set up CORB/RIRB buffers if was on before suspend */
817 hda_codec_resume_cmd_io(sdev);
819 /* Set DSP power state */
820 ret = snd_sof_dsp_set_power_state(sdev, &target_state);
822 dev_err(sdev->dev, "error: setting dsp state %d substate %d\n",
823 target_state.state, target_state.substate);
827 /* restore L1SEN bit */
828 if (hda->l1_disabled)
829 snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR,
831 HDA_VS_INTEL_EM2_L1SEN, 0);
833 /* restore and disable the system wakeup */
834 pci_restore_state(pci);
835 disable_irq_wake(pci->irq);
839 /* init hda controller. DSP cores will be powered up during fw boot */
840 ret = hda_resume(sdev, false);
844 return snd_sof_dsp_set_power_state(sdev, &target_state);
847 int hda_dsp_runtime_resume(struct snd_sof_dev *sdev)
849 const struct sof_dsp_power_state target_state = {
850 .state = SOF_DSP_PM_D0,
854 /* init hda controller. DSP cores will be powered up during fw boot */
855 ret = hda_resume(sdev, true);
859 return snd_sof_dsp_set_power_state(sdev, &target_state);
862 int hda_dsp_runtime_idle(struct snd_sof_dev *sdev)
864 struct hdac_bus *hbus = sof_to_bus(sdev);
866 if (hbus->codec_powered) {
867 dev_dbg(sdev->dev, "some codecs still powered (%08X), not idle\n",
868 (unsigned int)hbus->codec_powered);
875 int hda_dsp_runtime_suspend(struct snd_sof_dev *sdev)
877 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
878 const struct sof_dsp_power_state target_state = {
879 .state = SOF_DSP_PM_D3,
883 if (!sdev->dspless_mode_selected) {
884 /* cancel any attempt for DSP D0I3 */
885 cancel_delayed_work_sync(&hda->d0i3_work);
888 /* stop hda controller and power dsp off */
889 ret = hda_suspend(sdev, true);
893 return snd_sof_dsp_set_power_state(sdev, &target_state);
896 int hda_dsp_suspend(struct snd_sof_dev *sdev, u32 target_state)
898 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
899 struct hdac_bus *bus = sof_to_bus(sdev);
900 struct pci_dev *pci = to_pci_dev(sdev->dev);
901 const struct sof_dsp_power_state target_dsp_state = {
902 .state = target_state,
903 .substate = target_state == SOF_DSP_PM_D0 ?
904 SOF_HDA_DSP_PM_D0I3 : 0,
908 if (!sdev->dspless_mode_selected) {
909 /* cancel any attempt for DSP D0I3 */
910 cancel_delayed_work_sync(&hda->d0i3_work);
913 if (target_state == SOF_DSP_PM_D0) {
914 /* Set DSP power state */
915 ret = snd_sof_dsp_set_power_state(sdev, &target_dsp_state);
917 dev_err(sdev->dev, "error: setting dsp state %d substate %d\n",
918 target_dsp_state.state,
919 target_dsp_state.substate);
923 /* enable L1SEN to make sure the system can enter S0Ix */
924 if (hda->l1_disabled)
925 snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, HDA_VS_INTEL_EM2,
926 HDA_VS_INTEL_EM2_L1SEN, HDA_VS_INTEL_EM2_L1SEN);
928 /* stop the CORB/RIRB DMA if it is On */
929 hda_codec_suspend_cmd_io(sdev);
931 /* no link can be powered in s0ix state */
932 ret = hda_bus_ml_suspend(bus);
935 "error %d in %s: failed to power down links",
940 /* enable the system waking up via IPC IRQ */
941 enable_irq_wake(pci->irq);
946 /* stop hda controller and power dsp off */
947 ret = hda_suspend(sdev, false);
949 dev_err(bus->dev, "error: suspending dsp\n");
953 return snd_sof_dsp_set_power_state(sdev, &target_dsp_state);
956 static unsigned int hda_dsp_check_for_dma_streams(struct snd_sof_dev *sdev)
958 struct hdac_bus *bus = sof_to_bus(sdev);
959 struct hdac_stream *s;
960 unsigned int active_streams = 0;
964 list_for_each_entry(s, &bus->stream_list, list) {
965 sd_offset = SOF_STREAM_SD_OFFSET(s);
966 val = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR,
968 if (val & SOF_HDA_SD_CTL_DMA_START)
969 active_streams |= BIT(s->index);
972 return active_streams;
975 static int hda_dsp_s5_quirk(struct snd_sof_dev *sdev)
980 * Do not assume a certain timing between the prior
981 * suspend flow, and running of this quirk function.
982 * This is needed if the controller was just put
983 * to reset before calling this function.
985 usleep_range(500, 1000);
988 * Take controller out of reset to flush DMA
991 ret = hda_dsp_ctrl_link_reset(sdev, false);
995 usleep_range(500, 1000);
997 /* Restore state for shutdown, back to reset */
998 ret = hda_dsp_ctrl_link_reset(sdev, true);
1005 int hda_dsp_shutdown_dma_flush(struct snd_sof_dev *sdev)
1007 unsigned int active_streams;
1010 /* check if DMA cleanup has been successful */
1011 active_streams = hda_dsp_check_for_dma_streams(sdev);
1013 sdev->system_suspend_target = SOF_SUSPEND_S3;
1014 ret = snd_sof_suspend(sdev->dev);
1016 if (active_streams) {
1018 "There were active DSP streams (%#x) at shutdown, trying to recover\n",
1020 ret2 = hda_dsp_s5_quirk(sdev);
1022 dev_err(sdev->dev, "shutdown recovery failed (%d)\n", ret2);
1028 int hda_dsp_shutdown(struct snd_sof_dev *sdev)
1030 sdev->system_suspend_target = SOF_SUSPEND_S3;
1031 return snd_sof_suspend(sdev->dev);
1034 int hda_dsp_set_hw_params_upon_resume(struct snd_sof_dev *sdev)
1038 /* make sure all DAI resources are freed */
1039 ret = hda_dsp_dais_suspend(sdev);
1041 dev_warn(sdev->dev, "%s: failure in hda_dsp_dais_suspend\n", __func__);
1046 void hda_dsp_d0i3_work(struct work_struct *work)
1048 struct sof_intel_hda_dev *hdev = container_of(work,
1049 struct sof_intel_hda_dev,
1051 struct hdac_bus *bus = &hdev->hbus.core;
1052 struct snd_sof_dev *sdev = dev_get_drvdata(bus->dev);
1053 struct sof_dsp_power_state target_state = {
1054 .state = SOF_DSP_PM_D0,
1055 .substate = SOF_HDA_DSP_PM_D0I3,
1059 /* DSP can enter D0I3 iff only D0I3-compatible streams are active */
1060 if (!snd_sof_dsp_only_d0i3_compatible_stream_active(sdev))
1061 /* remain in D0I0 */
1064 /* This can fail but error cannot be propagated */
1065 ret = snd_sof_dsp_set_power_state(sdev, &target_state);
1067 dev_err_ratelimited(sdev->dev,
1068 "error: failed to set DSP state %d substate %d\n",
1069 target_state.state, target_state.substate);
1072 int hda_dsp_core_get(struct snd_sof_dev *sdev, int core)
1074 const struct sof_ipc_pm_ops *pm_ops = sdev->ipc->ops->pm;
1078 ret = hda_dsp_enable_core(sdev, BIT(core));
1080 dev_err(sdev->dev, "failed to power up core %d with err: %d\n",
1085 /* No need to send IPC for primary core or if FW boot is not complete */
1086 if (sdev->fw_state != SOF_FW_BOOT_COMPLETE || core == SOF_DSP_PRIMARY_CORE)
1089 /* No need to continue the set_core_state ops is not available */
1090 if (!pm_ops->set_core_state)
1093 /* Now notify DSP for secondary cores */
1094 ret = pm_ops->set_core_state(sdev, core, true);
1096 dev_err(sdev->dev, "failed to enable secondary core '%d' failed with %d\n",
1104 /* power down core if it is host managed and return the original error if this fails too */
1105 ret1 = hda_dsp_core_reset_power_down(sdev, BIT(core));
1107 dev_err(sdev->dev, "failed to power down core: %d with err: %d\n", core, ret1);
1112 int hda_dsp_disable_interrupts(struct snd_sof_dev *sdev)
1114 hda_sdw_int_enable(sdev, false);
1115 hda_dsp_ipc_int_disable(sdev);