ASoC: SOF: ipc4-topology: Add core_mask in struct snd_sof_pipeline

With IPC4, a pipeline may contain multiple modules in the data
processing domain and they can be scheduled to run on different cores.
Add a new field in struct snd_sof_pipeline to keep track of all the
cores that are associated with the modules in the pipeline. Set the
pipeline core mask for IPC3 when initializing the pipeline widget IPC
structure. For IPC4, set the core mark when initializing the pipeline
widget and initializing processing modules in the data processing domain.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20231124135743.24674-2-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: ranj063

sound/soc/sof/ipc3-topology.c

@@ -493,6 +493,7 @@ static int sof_ipc3_widget_setup_comp_mixer(struct snd_sof_widget *swidget)
 static int sof_ipc3_widget_setup_comp_pipeline(struct snd_sof_widget *swidget)
 {
 	struct snd_soc_component *scomp = swidget->scomp;
+	struct snd_sof_pipeline *spipe = swidget->spipe;
 	struct sof_ipc_pipe_new *pipeline;
 	struct snd_sof_widget *comp_swidget;
 	int ret;
@@ -545,6 +546,7 @@ static int sof_ipc3_widget_setup_comp_pipeline(struct snd_sof_widget *swidget)
 		swidget->dynamic_pipeline_widget);
 
 	swidget->core = pipeline->core;
+	spipe->core_mask |= BIT(pipeline->core);
 
 	return 0;
 

sound/soc/sof/ipc4-topology.c

@@ -656,6 +656,7 @@ static int sof_ipc4_widget_setup_comp_pipeline(struct snd_sof_widget *swidget)
 {
 	struct snd_soc_component *scomp = swidget->scomp;
 	struct sof_ipc4_pipeline *pipeline;
+	struct snd_sof_pipeline *spipe = swidget->spipe;
 	int ret;
 
 	pipeline = kzalloc(sizeof(*pipeline), GFP_KERNEL);
@@ -670,6 +671,7 @@ static int sof_ipc4_widget_setup_comp_pipeline(struct snd_sof_widget *swidget)
 	}
 
 	swidget->core = pipeline->core_id;
+	spipe->core_mask |= BIT(pipeline->core_id);
 
 	if (pipeline->use_chain_dma) {
 		dev_dbg(scomp->dev, "Set up chain DMA for %s\n", swidget->widget->name);
@@ -797,6 +799,7 @@ static int sof_ipc4_widget_setup_comp_mixer(struct snd_sof_widget *swidget)
 static int sof_ipc4_widget_setup_comp_src(struct snd_sof_widget *swidget)
 {
 	struct snd_soc_component *scomp = swidget->scomp;
+	struct snd_sof_pipeline *spipe = swidget->spipe;
 	struct sof_ipc4_src *src;
 	int ret;
 
@@ -819,6 +822,8 @@ static int sof_ipc4_widget_setup_comp_src(struct snd_sof_widget *swidget)
 		goto err;
 	}
 
+	spipe->core_mask |= BIT(swidget->core);
+
 	dev_dbg(scomp->dev, "SRC sink rate %d\n", src->sink_rate);
 
 	ret = sof_ipc4_widget_setup_msg(swidget, &src->msg);
@@ -864,6 +869,7 @@ static int sof_ipc4_widget_setup_comp_process(struct snd_sof_widget *swidget)
 {
 	struct snd_soc_component *scomp = swidget->scomp;
 	struct sof_ipc4_fw_module *fw_module;
+	struct snd_sof_pipeline *spipe = swidget->spipe;
 	struct sof_ipc4_process *process;
 	void *cfg;
 	int ret;
@@ -920,6 +926,9 @@ static int sof_ipc4_widget_setup_comp_process(struct snd_sof_widget *swidget)
 
 	sof_ipc4_widget_update_kcontrol_module_id(swidget);
 
+	/* set pipeline core mask to keep track of the core the module is scheduled to run on */
+	spipe->core_mask |= BIT(swidget->core);
+
 	return 0;
 free_base_cfg_ext:
 	kfree(process->base_config_ext);

sound/soc/sof/sof-audio.h

@@ -480,13 +480,15 @@ struct snd_sof_widget {
  * @paused_count: Count of number of PCM's that have started and have currently paused this
 		  pipeline
  * @complete: flag used to indicate that pipeline set up is complete.
+ * @core_mask: Mask containing target cores for all modules in the pipeline
  * @list: List item in sdev pipeline_list
  */
 struct snd_sof_pipeline {
 	struct snd_sof_widget *pipe_widget;
 	int started_count;
 	int paused_count;
 	int complete;
+	unsigned long core_mask;
 	struct list_head list;
 };