ASoC: SOF: Add a 'message' parameter to snd_sof_dsp_dbg_dump()

When snd_sof_dsp_dbg_dump() is called we have an explanatory message to
give some hint on the reason why we have the dump on the caller level.

Pass this message to snd_sof_dsp_dbg_dump() and handle the print according
to the dump rules.

This way we can finally print information on the HDA boot iteration if all
dumps are enabled.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: NRanjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: NKai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20211223113628.18582-7-peter.ujfalusi@linux.intel.comSigned-off-by: NMark Brown <broonie@kernel.org>

sound/soc/sof/debug.c

@@ -955,7 +955,7 @@ static void snd_sof_dbg_print_fw_state(struct snd_sof_dev *sdev)
 	dev_err(sdev->dev, "fw_state: UNKNOWN (%d)\n", sdev->fw_state);
 }
 
-void snd_sof_dsp_dbg_dump(struct snd_sof_dev *sdev, u32 flags)
+void snd_sof_dsp_dbg_dump(struct snd_sof_dev *sdev, const char *msg, u32 flags)
 {
 	bool print_all = sof_debug_check_flag(SOF_DBG_PRINT_ALL_DUMPS);
 
@@ -964,11 +964,15 @@ void snd_sof_dsp_dbg_dump(struct snd_sof_dev *sdev, u32 flags)
 
 	if (sof_ops(sdev)->dbg_dump && !sdev->dbg_dump_printed) {
 		dev_err(sdev->dev, "------------[ DSP dump start ]------------\n");
+		if (msg)
+			dev_err(sdev->dev, "%s\n", msg);
 		snd_sof_dbg_print_fw_state(sdev);
 		sof_ops(sdev)->dbg_dump(sdev, flags);
 		dev_err(sdev->dev, "------------[ DSP dump end ]------------\n");
 		if (!print_all)
 			sdev->dbg_dump_printed = true;
+	} else if (msg) {
+		dev_err(sdev->dev, "%s\n", msg);
 	}
 }
 EXPORT_SYMBOL(snd_sof_dsp_dbg_dump);
@@ -997,7 +1001,8 @@ void snd_sof_handle_fw_exception(struct snd_sof_dev *sdev)
 
 	/* dump vital information to the logs */
 	snd_sof_ipc_dump(sdev);
-	snd_sof_dsp_dbg_dump(sdev, SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX);
+	snd_sof_dsp_dbg_dump(sdev, "Firmware exception",
+			     SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX);
 	snd_sof_trace_notify_for_error(sdev);
 }
 EXPORT_SYMBOL(snd_sof_handle_fw_exception);

sound/soc/sof/intel/hda-loader.c

@@ -88,6 +88,7 @@ static int cl_dsp_init(struct snd_sof_dev *sdev, int stream_tag)
 	const struct sof_intel_dsp_desc *chip = hda->desc;
 	unsigned int status;
 	unsigned long mask;
+	char *dump_msg;
 	u32 flags, j;
 	int ret;
 	int i;
@@ -189,9 +190,12 @@ static int cl_dsp_init(struct snd_sof_dev *sdev, int stream_tag)
 	if (hda->boot_iteration == HDA_FW_BOOT_ATTEMPTS)
 		flags &= ~SOF_DBG_DUMP_OPTIONAL;
 
-	snd_sof_dsp_dbg_dump(sdev, flags);
+	dump_msg = kasprintf(GFP_KERNEL, "Boot iteration failed: %d/%d",
+			     hda->boot_iteration, HDA_FW_BOOT_ATTEMPTS);
+	snd_sof_dsp_dbg_dump(sdev, dump_msg, flags);
 	hda_dsp_core_reset_power_down(sdev, chip->host_managed_cores_mask);
 
+	kfree(dump_msg);
 	return ret;
 }
 
@@ -421,12 +425,11 @@ int hda_dsp_cl_boot_firmware(struct snd_sof_dev *sdev)
 	 */
 	hda->boot_iteration = HDA_FW_BOOT_ATTEMPTS;
 	ret = cl_copy_fw(sdev, stream);
-	if (!ret) {
+	if (!ret)
 		dev_dbg(sdev->dev, "Firmware download successful, booting...\n");
-	} else {
-		snd_sof_dsp_dbg_dump(sdev, SOF_DBG_DUMP_PCI | SOF_DBG_DUMP_MBOX);
-		dev_err(sdev->dev, "error: load fw failed ret: %d\n", ret);
-	}
+	else
+		snd_sof_dsp_dbg_dump(sdev, "Firmware download failed",
+				     SOF_DBG_DUMP_PCI | SOF_DBG_DUMP_MBOX);
 
 cleanup:
 	/*

sound/soc/sof/loader.c

@@ -820,8 +820,8 @@ int snd_sof_run_firmware(struct snd_sof_dev *sdev)
 	/* boot the firmware on the DSP */
 	ret = snd_sof_dsp_run(sdev);
 	if (ret < 0) {
-		dev_err(sdev->dev, "error: failed to start DSP\n");
-		snd_sof_dsp_dbg_dump(sdev, SOF_DBG_DUMP_MBOX | SOF_DBG_DUMP_PCI);
+		snd_sof_dsp_dbg_dump(sdev, "Failed to start DSP",
+				     SOF_DBG_DUMP_MBOX | SOF_DBG_DUMP_PCI);
 		return ret;
 	}
 
@@ -835,8 +835,8 @@ int snd_sof_run_firmware(struct snd_sof_dev *sdev)
 				 sdev->fw_state > SOF_FW_BOOT_IN_PROGRESS,
 				 msecs_to_jiffies(sdev->boot_timeout));
 	if (ret == 0) {
-		dev_err(sdev->dev, "error: firmware boot failure\n");
-		snd_sof_dsp_dbg_dump(sdev, SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX |
+		snd_sof_dsp_dbg_dump(sdev, "Firmware boot failure due to timeout",
+				     SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX |
 				     SOF_DBG_DUMP_TEXT | SOF_DBG_DUMP_PCI);
 		sof_set_fw_state(sdev, SOF_FW_BOOT_FAILED);
 		return -EIO;

sound/soc/sof/ops.c

@@ -171,12 +171,11 @@ void snd_sof_dsp_panic(struct snd_sof_dev *sdev, u32 offset, bool non_recoverabl
 	 * if all dumps should be printed
 	 */
 	if (non_recoverable || sof_debug_check_flag(SOF_DBG_PRINT_ALL_DUMPS)) {
-		dev_err(sdev->dev, "DSP panic!\n");
-
 		/* We want to see the DSP panic! */
 		sdev->dbg_dump_printed = false;
 
-		snd_sof_dsp_dbg_dump(sdev, SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX);
+		snd_sof_dsp_dbg_dump(sdev, "DSP panic!",
+				     SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX);
 		snd_sof_trace_notify_for_error(sdev);
 	}
 }

sound/soc/sof/ops.h

@@ -274,7 +274,7 @@ snd_sof_dsp_set_power_state(struct snd_sof_dev *sdev,
 }
 
 /* debug */
-void snd_sof_dsp_dbg_dump(struct snd_sof_dev *sdev, u32 flags);
+void snd_sof_dsp_dbg_dump(struct snd_sof_dev *sdev, const char *msg, u32 flags);
 
 static inline int snd_sof_debugfs_add_region_item(struct snd_sof_dev *sdev,
 		enum snd_sof_fw_blk_type blk_type, u32 offset, size_t size,