ASoC: SOF: ext_manifest: Parse debug ABI version

The debug ABI can be extracted from the extended manifest content.
This information known at build time does not need to be provided
in a mailbox.

Signed-off-by: Karol Trzcinski <karolx.trzcinski@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: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20200825235854.1588034-4-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

include/sound/sof/ext_manifest.h

@@ -60,6 +60,7 @@ enum sof_ext_man_elem_type {
 	SOF_EXT_MAN_ELEM_FW_VERSION		= 0,
 	SOF_EXT_MAN_ELEM_WINDOW			= SOF_IPC_EXT_WINDOW,
 	SOF_EXT_MAN_ELEM_CC_VERSION		= SOF_IPC_EXT_CC_INFO,
+	SOF_EXT_MAN_ELEM_DBG_ABI		= SOF_IPC_EXT_USER_ABI_INFO,
 };
 
 /* extended manifest element header */
@@ -92,4 +93,10 @@ struct sof_ext_man_cc_version {
 	struct sof_ipc_cc_version cc_version;
 } __packed;
 
+struct ext_man_dbg_abi {
+	struct sof_ext_man_elem_header hdr;
+	/* use sof_ipc struct because of code re-use */
+	struct sof_ipc_user_abi_version dbg_abi;
+} __packed;
+
 #endif /* __SOF_FIRMWARE_EXT_MANIFEST_H__ */

sound/soc/sof/loader.c

@@ -176,6 +176,22 @@ static int ext_man_get_cc_info(struct snd_sof_dev *sdev,
 	return get_cc_info(sdev, &cc->cc_version.ext_hdr);
 }
 
+static int ext_man_get_dbg_abi_info(struct snd_sof_dev *sdev,
+				    const struct sof_ext_man_elem_header *hdr)
+{
+	const struct ext_man_dbg_abi *dbg_abi =
+		container_of(hdr, struct ext_man_dbg_abi, hdr);
+
+	if (sdev->first_boot)
+		dev_dbg(sdev->dev,
+			"Firmware: DBG_ABI %d:%d:%d\n",
+			SOF_ABI_VERSION_MAJOR(dbg_abi->dbg_abi.abi_dbg_version),
+			SOF_ABI_VERSION_MINOR(dbg_abi->dbg_abi.abi_dbg_version),
+			SOF_ABI_VERSION_PATCH(dbg_abi->dbg_abi.abi_dbg_version));
+
+	return 0;
+}
+
 static ssize_t snd_sof_ext_man_size(const struct firmware *fw)
 {
 	const struct sof_ext_man_header *head;
@@ -255,6 +271,9 @@ static int snd_sof_fw_ext_man_parse(struct snd_sof_dev *sdev,
 		case SOF_EXT_MAN_ELEM_CC_VERSION:
 			ret = ext_man_get_cc_info(sdev, elem_hdr);
 			break;
+		case SOF_EXT_MAN_ELEM_DBG_ABI:
+			ret = ext_man_get_dbg_abi_info(sdev, elem_hdr);
+			break;
 		default:
 			dev_warn(sdev->dev, "warning: unknown sof_ext_man header type %d size 0x%X\n",
 				 elem_hdr->type, elem_hdr->size);