ASoC: SOF: ipc4-loader/topology: Query the CPC value from manifest

The manifest's firmware module configuration section contains the measured
CPC values along with a matching IBS/OBS values.

The CPC can be looked up by looking for a matching IBS/OBS entry.
In case of multiple matches we will use the highest CPC value.

If there is no mod_cfg or no CPC value (all 0) or no match was found then
print warning message and use 0 as CPC value.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20230522101313.12519-6-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sof/ipc4-loader.c b/sound/soc/sof/ipc4-loader.c
index 3860d34..eaa0476 100644 (file)
--- a/sound/soc/sof/ipc4-loader.c
+++ b/sound/soc/sof/ipc4-loader.c
@@ -423,6 +423,71 @@ int sof_ipc4_reload_fw_libraries(struct snd_sof_dev *sdev)
        return ret;
 }
 
+/**
+ * sof_ipc4_update_cpc_from_manifest - Update the cpc in base config from manifest
+ * @sdev: SOF device
+ * @fw_module: pointer struct sof_ipc4_fw_module to parse
+ * @basecfg: Pointer to the base_config to update
+ */
+void sof_ipc4_update_cpc_from_manifest(struct snd_sof_dev *sdev,
+                                      struct sof_ipc4_fw_module *fw_module,
+                                      struct sof_ipc4_base_module_cfg *basecfg)
+{
+       const struct sof_man4_module_config *fw_mod_cfg;
+       u32 cpc_pick = 0;
+       u32 max_cpc = 0;
+       const char *msg;
+       int i;
+
+       if (!fw_module->fw_mod_cfg) {
+               msg = "No mod_cfg available for CPC lookup in the firmware file's manifest";
+               goto no_cpc;
+       }
+
+       /*
+        * Find the best matching (highest) CPC value based on the module's
+        * IBS/OBS configuration inferred from the audio format selection.
+        *
+        * The CPC value in each module config entry has been measured and
+        * recorded as a IBS/OBS/CPC triplet and stored in the firmware file's
+        * manifest
+        */
+       fw_mod_cfg = fw_module->fw_mod_cfg;
+       for (i = 0; i < fw_module->man4_module_entry.cfg_count; i++) {
+               if (basecfg->obs == fw_mod_cfg[i].obs &&
+                   basecfg->ibs == fw_mod_cfg[i].ibs &&
+                   cpc_pick < fw_mod_cfg[i].cpc)
+                       cpc_pick = fw_mod_cfg[i].cpc;
+
+               if (max_cpc < fw_mod_cfg[i].cpc)
+                       max_cpc = fw_mod_cfg[i].cpc;
+       }
+
+       basecfg->cpc = cpc_pick;
+
+       /* We have a matching configuration for CPC */
+       if (basecfg->cpc)
+               return;
+
+       /*
+        * No matching IBS/OBS found, the firmware manifest is missing
+        * information in the module's module configuration table.
+        */
+       if (!max_cpc)
+               msg = "No CPC value available in the firmware file's manifest";
+       else if (!cpc_pick)
+               msg = "No CPC match in the firmware file's manifest";
+
+no_cpc:
+       dev_warn(sdev->dev, "%s (UUID: %pUL): %s (ibs/obs: %u/%u)\n",
+                fw_module->man4_module_entry.name,
+                &fw_module->man4_module_entry.uuid, msg, basecfg->ibs,
+                basecfg->obs);
+       dev_warn_once(sdev->dev, "Please try to update the firmware.\n");
+       dev_warn_once(sdev->dev, "If the issue persists, file a bug at\n");
+       dev_warn_once(sdev->dev, "https://github.com/thesofproject/sof/issues/\n");
+}
+
 const struct sof_ipc_fw_loader_ops ipc4_loader_ops = {
        .validate = sof_ipc4_validate_firmware,
        .parse_ext_manifest = sof_ipc4_fw_parse_basefw_ext_man,

diff --git a/sound/soc/sof/ipc4-priv.h b/sound/soc/sof/ipc4-priv.h
index 4b3495d..a5d0b2e 100644 (file)
--- a/sound/soc/sof/ipc4-priv.h
+++ b/sound/soc/sof/ipc4-priv.h
@@ -114,4 +114,10 @@ int sof_ipc4_query_fw_configuration(struct snd_sof_dev *sdev);
 int sof_ipc4_reload_fw_libraries(struct snd_sof_dev *sdev);
 struct sof_ipc4_fw_module *sof_ipc4_find_module_by_uuid(struct snd_sof_dev *sdev,
                                                        const guid_t *uuid);
+
+struct sof_ipc4_base_module_cfg;
+void sof_ipc4_update_cpc_from_manifest(struct snd_sof_dev *sdev,
+                                      struct sof_ipc4_fw_module *fw_module,
+                                      struct sof_ipc4_base_module_cfg *basecfg);
+
 #endif

diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c
index 910ca98..681239d 100644 (file)
--- a/sound/soc/sof/ipc4-topology.c
+++ b/sound/soc/sof/ipc4-topology.c
@@ -966,6 +966,13 @@ sof_ipc4_update_resource_usage(struct snd_sof_dev *sdev, struct snd_sof_widget *
        pipe_widget = swidget->spipe->pipe_widget;
        pipeline = pipe_widget->private;
        pipeline->mem_usage += total;
+
+       /* Update base_config->cpc from the module manifest */
+       sof_ipc4_update_cpc_from_manifest(sdev, fw_module, base_config);
+
+       dev_dbg(sdev->dev, "%s: ibs / obs / cpc: %u / %u / %u\n",
+               swidget->widget->name, base_config->ibs, base_config->obs,
+               base_config->cpc);
 }
 
 static int sof_ipc4_widget_assign_instance_id(struct snd_sof_dev *sdev,