From: Ranjani Sridharan ranjani.sridharan@linux.intel.com

Suspending to S0iX with IPC3 requires the PM_GATE IPC to be sent again to stop the DMA trace. But with IPC4, this is not needed as the trace is stopped with the LARGE_CONFIG_SET IPC. Also, sending the MOD_D0IX IPC to set the D0I3 state again when the DSP is in D0I3 already results in an imbalance in PM runtime states in the firmware. So split the set_power_state ops for IPC3 and IPC4 to avoid sending the MOD_D0IX IPC when the DSP is already in D0I3 with IPC4.

Signed-off-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Reviewed-by: Rander Wang rander.wang@intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com Reviewed-by: Péter Ujfalusi peter.ujfalusi@linux.intel.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Peter Ujfalusi peter.ujfalusi@linux.intel.com --- Mark,

last minute patch for 6.4 as the issue this patch addressing was discovered and fixed recently for IPC4.

Regards, Peter

sound/soc/sof/intel/apl.c | 4 ++ sound/soc/sof/intel/cnl.c | 4 ++ sound/soc/sof/intel/hda-common-ops.c | 1 - sound/soc/sof/intel/hda-dsp.c | 60 ++++++++++++++++++---------- sound/soc/sof/intel/hda.h | 6 ++- sound/soc/sof/intel/icl.c | 4 ++ sound/soc/sof/intel/mtl.c | 2 + sound/soc/sof/intel/tgl.c | 4 ++ 8 files changed, 60 insertions(+), 25 deletions(-)

diff --git a/sound/soc/sof/intel/apl.c b/sound/soc/sof/intel/apl.c index 0e7a7e4ad976..e1f25a8f0c32 100644 --- a/sound/soc/sof/intel/apl.c +++ b/sound/soc/sof/intel/apl.c @@ -48,6 +48,8 @@ int sof_apl_ops_init(struct snd_sof_dev *sdev)

/* debug */ sof_apl_ops.ipc_dump = hda_ipc_dump; + + sof_apl_ops.set_power_state = hda_dsp_set_power_state_ipc3; }

if (sdev->pdata->ipc_type == SOF_INTEL_IPC4) { @@ -73,6 +75,8 @@ int sof_apl_ops_init(struct snd_sof_dev *sdev)

/* debug */ sof_apl_ops.ipc_dump = hda_ipc4_dump; + + sof_apl_ops.set_power_state = hda_dsp_set_power_state_ipc4; }

/* set DAI driver ops */ diff --git a/sound/soc/sof/intel/cnl.c b/sound/soc/sof/intel/cnl.c index a08a77fa946b..a95222e53ecf 100644 --- a/sound/soc/sof/intel/cnl.c +++ b/sound/soc/sof/intel/cnl.c @@ -395,6 +395,8 @@ int sof_cnl_ops_init(struct snd_sof_dev *sdev)

/* debug */ sof_cnl_ops.ipc_dump = cnl_ipc_dump; + + sof_cnl_ops.set_power_state = hda_dsp_set_power_state_ipc3; }

if (sdev->pdata->ipc_type == SOF_INTEL_IPC4) { @@ -420,6 +422,8 @@ int sof_cnl_ops_init(struct snd_sof_dev *sdev)

/* debug */ sof_cnl_ops.ipc_dump = cnl_ipc4_dump; + + sof_cnl_ops.set_power_state = hda_dsp_set_power_state_ipc4; }

/* set DAI driver ops */ diff --git a/sound/soc/sof/intel/hda-common-ops.c b/sound/soc/sof/intel/hda-common-ops.c index 397303b3ac9d..8e1cd0babd32 100644 --- a/sound/soc/sof/intel/hda-common-ops.c +++ b/sound/soc/sof/intel/hda-common-ops.c @@ -89,7 +89,6 @@ struct snd_sof_dsp_ops sof_hda_common_ops = { .runtime_resume = hda_dsp_runtime_resume, .runtime_idle = hda_dsp_runtime_idle, .set_hw_params_upon_resume = hda_dsp_set_hw_params_upon_resume, - .set_power_state = hda_dsp_set_power_state,

/* ALSA HW info flags */ .hw_info = SNDRV_PCM_INFO_MMAP | diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c index 77df536cf901..44f39a520bb3 100644 --- a/sound/soc/sof/intel/hda-dsp.c +++ b/sound/soc/sof/intel/hda-dsp.c @@ -574,31 +574,11 @@ static void hda_dsp_state_log(struct snd_sof_dev *sdev) * is called again either because of a new IPC sent to the DSP or * during system suspend/resume. */ -int hda_dsp_set_power_state(struct snd_sof_dev *sdev, - const struct sof_dsp_power_state *target_state) +static int hda_dsp_set_power_state(struct snd_sof_dev *sdev, + const struct sof_dsp_power_state *target_state) { int ret = 0;

- /* - * When the DSP is already in D0I3 and the target state is D0I3, - * it could be the case that the DSP is in D0I3 during S0 - * and the system is suspending to S0Ix. Therefore, - * hda_dsp_set_D0_state() must be called to disable trace DMA - * by sending the PM_GATE IPC to the FW. - */ - if (target_state->substate == SOF_HDA_DSP_PM_D0I3 && - sdev->system_suspend_target == SOF_SUSPEND_S0IX) - goto set_state; - - /* - * For all other cases, return without doing anything if - * the DSP is already in the target state. - */ - if (target_state->state == sdev->dsp_power_state.state && - target_state->substate == sdev->dsp_power_state.substate) - return 0; - -set_state: switch (target_state->state) { case SOF_DSP_PM_D0: ret = hda_dsp_set_D0_state(sdev, target_state); @@ -630,6 +610,42 @@ int hda_dsp_set_power_state(struct snd_sof_dev *sdev, return ret; }

+int hda_dsp_set_power_state_ipc3(struct snd_sof_dev *sdev, + const struct sof_dsp_power_state *target_state) +{ + /* + * When the DSP is already in D0I3 and the target state is D0I3, + * it could be the case that the DSP is in D0I3 during S0 + * and the system is suspending to S0Ix. Therefore, + * hda_dsp_set_D0_state() must be called to disable trace DMA + * by sending the PM_GATE IPC to the FW. + */ + if (target_state->substate == SOF_HDA_DSP_PM_D0I3 && + sdev->system_suspend_target == SOF_SUSPEND_S0IX) + return hda_dsp_set_power_state(sdev, target_state); + + /* + * For all other cases, return without doing anything if + * the DSP is already in the target state. + */ + if (target_state->state == sdev->dsp_power_state.state && + target_state->substate == sdev->dsp_power_state.substate) + return 0; + + return hda_dsp_set_power_state(sdev, target_state); +} + +int hda_dsp_set_power_state_ipc4(struct snd_sof_dev *sdev, + const struct sof_dsp_power_state *target_state) +{ + /* Return without doing anything if the DSP is already in the target state */ + if (target_state->state == sdev->dsp_power_state.state && + target_state->substate == sdev->dsp_power_state.substate) + return 0; + + return hda_dsp_set_power_state(sdev, target_state); +} + /* * Audio DSP states may transform as below:- * diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h index 0e0cfa81a8f2..c4befacde23e 100644 --- a/sound/soc/sof/intel/hda.h +++ b/sound/soc/sof/intel/hda.h @@ -584,8 +584,10 @@ void hda_dsp_ipc_int_enable(struct snd_sof_dev *sdev); void hda_dsp_ipc_int_disable(struct snd_sof_dev *sdev); bool hda_dsp_core_is_enabled(struct snd_sof_dev *sdev, unsigned int core_mask);

-int hda_dsp_set_power_state(struct snd_sof_dev *sdev, - const struct sof_dsp_power_state *target_state); +int hda_dsp_set_power_state_ipc3(struct snd_sof_dev *sdev, + const struct sof_dsp_power_state *target_state); +int hda_dsp_set_power_state_ipc4(struct snd_sof_dev *sdev, + const struct sof_dsp_power_state *target_state);

int hda_dsp_suspend(struct snd_sof_dev *sdev, u32 target_state); int hda_dsp_resume(struct snd_sof_dev *sdev); diff --git a/sound/soc/sof/intel/icl.c b/sound/soc/sof/intel/icl.c index 435941a1692f..0f249efc6a5a 100644 --- a/sound/soc/sof/intel/icl.c +++ b/sound/soc/sof/intel/icl.c @@ -116,6 +116,8 @@ int sof_icl_ops_init(struct snd_sof_dev *sdev)

/* debug */ sof_icl_ops.ipc_dump = cnl_ipc_dump; + + sof_icl_ops.set_power_state = hda_dsp_set_power_state_ipc3; }

if (sdev->pdata->ipc_type == SOF_INTEL_IPC4) { @@ -141,6 +143,8 @@ int sof_icl_ops_init(struct snd_sof_dev *sdev)

/* debug */ sof_icl_ops.ipc_dump = cnl_ipc4_dump; + + sof_icl_ops.set_power_state = hda_dsp_set_power_state_ipc4; }

/* debug */ diff --git a/sound/soc/sof/intel/mtl.c b/sound/soc/sof/intel/mtl.c index 9f969e07fc27..46caf3ccde66 100644 --- a/sound/soc/sof/intel/mtl.c +++ b/sound/soc/sof/intel/mtl.c @@ -668,6 +668,8 @@ int sof_mtl_ops_init(struct snd_sof_dev *sdev) /* set DAI ops */ hda_set_dai_drv_ops(sdev, &sof_mtl_ops);

+ sof_mtl_ops.set_power_state = hda_dsp_set_power_state_ipc4; + return 0; }; EXPORT_SYMBOL_NS(sof_mtl_ops_init, SND_SOC_SOF_INTEL_HDA_COMMON); diff --git a/sound/soc/sof/intel/tgl.c b/sound/soc/sof/intel/tgl.c index 58ac3a46e6a7..2713b7dc7931 100644 --- a/sound/soc/sof/intel/tgl.c +++ b/sound/soc/sof/intel/tgl.c @@ -71,6 +71,8 @@ int sof_tgl_ops_init(struct snd_sof_dev *sdev)

/* debug */ sof_tgl_ops.ipc_dump = cnl_ipc_dump; + + sof_tgl_ops.set_power_state = hda_dsp_set_power_state_ipc3; }

if (sdev->pdata->ipc_type == SOF_INTEL_IPC4) { @@ -96,6 +98,8 @@ int sof_tgl_ops_init(struct snd_sof_dev *sdev)

/* debug */ sof_tgl_ops.ipc_dump = cnl_ipc4_dump; + + sof_tgl_ops.set_power_state = hda_dsp_set_power_state_ipc4; }

/* set DAI driver ops */