[PATCH 8/9] ASoC: SOF: Intel: hda: add ipc4 FW panic support on CAVS 2.5+ platforms

[Peter Ujfalusi <peter.ujfalusi@linux.intel.com>]

From: Rander Wang <rander.wang@intel.com>

Get the FW panic information from telemetry data in memory window and
dump it to kernel log. The old platforms before CAVS 2.5+ don't support
it since there is no support in FW for them.

Signed-off-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Péter 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: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
---
 sound/soc/sof/intel/hda.c | 14 ++++++++++++++
 sound/soc/sof/intel/hda.h |  1 +
 sound/soc/sof/intel/tgl.c |  1 +
 3 files changed, 16 insertions(+)

diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
index 15e6779efaa3..02c82ccb9f66 100644
--- a/sound/soc/sof/intel/hda.c
+++ b/sound/soc/sof/intel/hda.c
@@ -31,6 +31,7 @@
 #include "../sof-pci-dev.h"
 #include "../ops.h"
 #include "hda.h"
+#include "telemetry.h"
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/sof_intel.h>
@@ -731,6 +732,19 @@ void hda_dsp_dump(struct snd_sof_dev *sdev, u32 flags)
 	}
 }
 
+void hda_ipc4_dsp_dump(struct snd_sof_dev *sdev, u32 flags)
+{
+	char *level = (flags & SOF_DBG_DUMP_OPTIONAL) ? KERN_DEBUG : KERN_ERR;
+
+	/* print ROM/FW status */
+	hda_dsp_get_state(sdev, level);
+
+	if (flags & SOF_DBG_DUMP_REGS)
+		sof_ipc4_intel_dump_telemetry_state(sdev, flags);
+	else
+		hda_dsp_dump_ext_rom_status(sdev, level, flags);
+}
+
 static bool hda_check_ipc_irq(struct snd_sof_dev *sdev)
 {
 	const struct sof_intel_dsp_desc *chip;
diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h
index 2b228c63905b..7c575ba9462c 100644
--- a/sound/soc/sof/intel/hda.h
+++ b/sound/soc/sof/intel/hda.h
@@ -603,6 +603,7 @@ int hda_dsp_shutdown_dma_flush(struct snd_sof_dev *sdev);
 int hda_dsp_shutdown(struct snd_sof_dev *sdev);
 int hda_dsp_set_hw_params_upon_resume(struct snd_sof_dev *sdev);
 void hda_dsp_dump(struct snd_sof_dev *sdev, u32 flags);
+void hda_ipc4_dsp_dump(struct snd_sof_dev *sdev, u32 flags);
 void hda_ipc_dump(struct snd_sof_dev *sdev);
 void hda_ipc_irq_dump(struct snd_sof_dev *sdev);
 void hda_dsp_d0i3_work(struct work_struct *work);
diff --git a/sound/soc/sof/intel/tgl.c b/sound/soc/sof/intel/tgl.c
index bb9f20253c99..4a61f6d28ae5 100644
--- a/sound/soc/sof/intel/tgl.c
+++ b/sound/soc/sof/intel/tgl.c
@@ -102,6 +102,7 @@ int sof_tgl_ops_init(struct snd_sof_dev *sdev)
 
 		/* debug */
 		sof_tgl_ops.ipc_dump	= cnl_ipc4_dump;
+		sof_tgl_ops.dbg_dump	= hda_ipc4_dsp_dump;
 
 		sof_tgl_ops.set_power_state = hda_dsp_set_power_state_ipc4;
 	}
-- 
2.42.0