ASoC: SOF: Intel: hda: add extended rom status dump to error log

Dump the extended ROM status information to the error logs to aid with remote support. The analysis of these logs requires access to non-public technical information. Reviewed-by: Kai Vehmanen <[email protected]> Reviewed-by: Jaska Uimonen <[email protected]> Signed-off-by: Ranjani Sridharan <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Mark Brown <[email protected]>
zandrey · Aug 26, 2020 · 29c8e43 · 29c8e43
1 parent 878694d
commit 29c8e43
Showing 1 changed file with 18 additions and 0 deletions.
diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
@@ -37,6 +37,7 @@
 #include "shim.h"
 
 #define EXCEPT_MAX_HDR_SIZE	0x400
+#define HDA_EXT_ROM_STATUS_SIZE 8
 
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE)
 
@@ -414,6 +415,22 @@ void hda_dsp_dump_skl(struct snd_sof_dev *sdev, u32 flags)
 	}
 }
 
+/* dump the first 8 dwords representing the extended ROM status */
+static void hda_dsp_dump_ext_rom_status(struct snd_sof_dev *sdev)
+{
+	char msg[128];
+	int len = 0;
+	u32 value;
+	int i;
+
+	for (i = 0; i < HDA_EXT_ROM_STATUS_SIZE; i++) {
+		value = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_SRAM_REG_ROM_STATUS + i * 0x4);
+		len += snprintf(msg + len, sizeof(msg) - len, " 0x%x", value);
+	}
+
+	dev_err(sdev->dev, "error: extended rom status:%s", msg);
+}
+
 void hda_dsp_dump(struct snd_sof_dev *sdev, u32 flags)
 {
 	struct sof_ipc_dsp_oops_xtensa xoops;
@@ -437,6 +454,7 @@ void hda_dsp_dump(struct snd_sof_dev *sdev, u32 flags)
 	} else {
 		dev_err(sdev->dev, "error: status = 0x%8.8x panic = 0x%8.8x\n",
 			status, panic);
+		hda_dsp_dump_ext_rom_status(sdev);
 		hda_dsp_get_status(sdev);
 	}
 }