ASoC: SOF: Rename snd_sof_get_status() and add kernel log level parameter

The snd_sof_get_status() is not the best name for a function which in fact
is tasked to print out DSP oops and stack. Rename it to
sof_print_oops_and_stack().

At the same time add a new parameter to specify the desired kernel log
level to be used for the prints.

When updating the users of the function, pass KERN_ERR for now to make sure
that there is no functional change happens.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Chao Song <chao.song@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20211223113628.18582-18-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/core.c

@@ -68,23 +68,33 @@ static const struct sof_panic_msg panic_msg[] = {
 	{SOF_IPC_PANIC_ASSERT, "assertion failed"},
 };
 
-/*
+/**
+ * sof_print_oops_and_stack - Handle the printing of DSP oops and stack trace
+ * @sdev: Pointer to the device's sdev
+ * @level: prink log level to use for the printing
+ * @panic_code: the panic code
+ * @tracep_code: tracepoint code
+ * @oops: Pointer to DSP specific oops data
+ * @panic_info: Pointer to the received panic information message
+ * @stack: Pointer to the call stack data
+ * @stack_words: Number of words in the stack data
+ *
  * helper to be called from .dbg_dump callbacks. No error code is
  * provided, it's left as an exercise for the caller of .dbg_dump
  * (typically IPC or loader)
  */
-void snd_sof_get_status(struct snd_sof_dev *sdev, u32 panic_code,
-			u32 tracep_code, void *oops,
-			struct sof_ipc_panic_info *panic_info,
-			void *stack, size_t stack_words)
+void sof_print_oops_and_stack(struct snd_sof_dev *sdev, const char *level,
+			      u32 panic_code, u32 tracep_code, void *oops,
+			      struct sof_ipc_panic_info *panic_info,
+			      void *stack, size_t stack_words)
 {
 	u32 code;
 	int i;
 
 	/* is firmware dead ? */
 	if ((panic_code & SOF_IPC_PANIC_MAGIC_MASK) != SOF_IPC_PANIC_MAGIC) {
-		dev_err(sdev->dev, "unexpected fault %#010x trace %#010x\n",
-			panic_code, tracep_code);
+		dev_printk(level, sdev->dev, "unexpected fault %#010x trace %#010x\n",
+			   panic_code, tracep_code);
 		return; /* no fault ? */
 	}
 
@@ -92,24 +102,25 @@ void snd_sof_get_status(struct snd_sof_dev *sdev, u32 panic_code,
 
 	for (i = 0; i < ARRAY_SIZE(panic_msg); i++) {
 		if (panic_msg[i].id == code) {
-			dev_err(sdev->dev, "reason: %s (%#x)\n", panic_msg[i].msg,
-				code & SOF_IPC_PANIC_CODE_MASK);
-			dev_err(sdev->dev, "trace point: %#010x\n", tracep_code);
+			dev_printk(level, sdev->dev, "reason: %s (%#x)\n",
+				   panic_msg[i].msg, code & SOF_IPC_PANIC_CODE_MASK);
+			dev_printk(level, sdev->dev, "trace point: %#010x\n", tracep_code);
 			goto out;
 		}
 	}
 
 	/* unknown error */
-	dev_err(sdev->dev, "unknown panic code: %#x\n", code & SOF_IPC_PANIC_CODE_MASK);
-	dev_err(sdev->dev, "trace point: %#010x\n", tracep_code);
+	dev_printk(level, sdev->dev, "unknown panic code: %#x\n",
+		   code & SOF_IPC_PANIC_CODE_MASK);
+	dev_printk(level, sdev->dev, "trace point: %#010x\n", tracep_code);
 
 out:
-	dev_err(sdev->dev, "panic at %s:%d\n", panic_info->filename,
-		panic_info->linenum);
-	sof_oops(sdev, KERN_ERR, oops);
-	sof_stack(sdev, KERN_ERR, oops, stack, stack_words);
+	dev_printk(level, sdev->dev, "panic at %s:%d\n", panic_info->filename,
+		   panic_info->linenum);
+	sof_oops(sdev, level, oops);
+	sof_stack(sdev, level, oops, stack, stack_words);
 }
-EXPORT_SYMBOL(snd_sof_get_status);
+EXPORT_SYMBOL(sof_print_oops_and_stack);
 
 /*
  *			FW Boot State Transition Diagram

sound/soc/sof/imx/imx-common.c

@@ -69,8 +69,8 @@ void imx8_dump(struct snd_sof_dev *sdev, u32 flags)
 			   IMX8_STACK_DUMP_SIZE);
 
 	/* Print the information to the console */
-	snd_sof_get_status(sdev, status, status, &xoops, &panic_info, stack,
-			   IMX8_STACK_DUMP_SIZE);
+	sof_print_oops_and_stack(sdev, KERN_ERR, status, status, &xoops,
+				 &panic_info, stack, IMX8_STACK_DUMP_SIZE);
 }
 EXPORT_SYMBOL(imx8_dump);
 

sound/soc/sof/intel/atom.c

@@ -70,8 +70,8 @@ void atom_dump(struct snd_sof_dev *sdev, u32 flags)
 	panic = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IPCX);
 	atom_get_registers(sdev, &xoops, &panic_info, stack,
 			   STACK_DUMP_SIZE);
-	snd_sof_get_status(sdev, status, panic, &xoops, &panic_info, stack,
-			   STACK_DUMP_SIZE);
+	sof_print_oops_and_stack(sdev, KERN_ERR, status, panic, &xoops,
+				 &panic_info, stack, STACK_DUMP_SIZE);
 
 	/* provide some context for firmware debug */
 	imrx = snd_sof_dsp_read64(sdev, DSP_BAR, SHIM_IMRX);

sound/soc/sof/intel/bdw.c

@@ -258,8 +258,8 @@ static void bdw_dump(struct snd_sof_dev *sdev, u32 flags)
 	panic = snd_sof_dsp_read(sdev, BDW_DSP_BAR, SHIM_IPCX);
 	bdw_get_registers(sdev, &xoops, &panic_info, stack,
 			  BDW_STACK_DUMP_SIZE);
-	snd_sof_get_status(sdev, status, panic, &xoops, &panic_info, stack,
-			   BDW_STACK_DUMP_SIZE);
+	sof_print_oops_and_stack(sdev, KERN_ERR, status, panic, &xoops,
+				 &panic_info, stack, BDW_STACK_DUMP_SIZE);
 
 	/* provide some context for firmware debug */
 	imrx = snd_sof_dsp_read(sdev, BDW_DSP_BAR, SHIM_IMRX);

sound/soc/sof/intel/hda.c

@@ -554,8 +554,8 @@ void hda_dsp_dump(struct snd_sof_dev *sdev, u32 flags)
 
 		hda_dsp_get_registers(sdev, &xoops, &panic_info, stack,
 				      HDA_DSP_STACK_DUMP_SIZE);
-		snd_sof_get_status(sdev, status, panic, &xoops, &panic_info,
-				   stack, HDA_DSP_STACK_DUMP_SIZE);
+		sof_print_oops_and_stack(sdev, KERN_ERR, status, panic, &xoops,
+					 &panic_info, stack, HDA_DSP_STACK_DUMP_SIZE);
 	} else {
 		hda_dsp_dump_ext_rom_status(sdev, flags);
 	}

sound/soc/sof/sof-priv.h

@@ -559,10 +559,10 @@ int snd_sof_debugfs_buf_item(struct snd_sof_dev *sdev,
 int snd_sof_trace_update_pos(struct snd_sof_dev *sdev,
 			     struct sof_ipc_dma_trace_posn *posn);
 void snd_sof_trace_notify_for_error(struct snd_sof_dev *sdev);
-void snd_sof_get_status(struct snd_sof_dev *sdev, u32 panic_code,
-			u32 tracep_code, void *oops,
-			struct sof_ipc_panic_info *panic_info,
-			void *stack, size_t stack_words);
+void sof_print_oops_and_stack(struct snd_sof_dev *sdev, const char *level,
+			      u32 panic_code, u32 tracep_code, void *oops,
+			      struct sof_ipc_panic_info *panic_info,
+			      void *stack, size_t stack_words);
 int snd_sof_init_trace_ipc(struct snd_sof_dev *sdev);
 void snd_sof_handle_fw_exception(struct snd_sof_dev *sdev);
 int snd_sof_dbg_memory_info_init(struct snd_sof_dev *sdev);