ASoC: SOF: dsp_arch_ops: add kernel log level parameter for oops and stack

To allow custom log level to be used for the DSP oops and stack print, add
a kernel log level parameter to the two ops.

Modify the xtensa oops and stack functions tom use this new log level
parameter.

Pass KER_ERR from snd_sof_get_status() to make sure that there is no
functional change with this new parameter.
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/20211223113628.18582-17-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/core.c

@@ -106,8 +106,8 @@ void snd_sof_get_status(struct snd_sof_dev *sdev, u32 panic_code,
 out:
 	dev_err(sdev->dev, "panic at %s:%d\n", panic_info->filename,
 		panic_info->linenum);
-	sof_oops(sdev, oops);
-	sof_stack(sdev, oops, stack, stack_words);
+	sof_oops(sdev, KERN_ERR, oops);
+	sof_stack(sdev, KERN_ERR, oops, stack, stack_words);
 }
 EXPORT_SYMBOL(snd_sof_get_status);
 

sound/soc/sof/sof-priv.h

@@ -309,8 +309,8 @@ struct snd_sof_dsp_ops {
 
 /* DSP architecture specific callbacks for oops and stack dumps */
 struct dsp_arch_ops {
-	void (*dsp_oops)(struct snd_sof_dev *sdev, void *oops);
-	void (*dsp_stack)(struct snd_sof_dev *sdev, void *oops,
+	void (*dsp_oops)(struct snd_sof_dev *sdev, const char *level, void *oops);
+	void (*dsp_stack)(struct snd_sof_dev *sdev, const char *level, void *oops,
 			  u32 *stack, u32 stack_words);
 };
 
@@ -573,16 +573,17 @@ int snd_sof_debugfs_add_region_item_iomem(struct snd_sof_dev *sdev,
 /*
  * DSP Architectures.
  */
-static inline void sof_stack(struct snd_sof_dev *sdev, void *oops, u32 *stack,
-			     u32 stack_words)
+static inline void sof_stack(struct snd_sof_dev *sdev, const char *level,
+			     void *oops, u32 *stack, u32 stack_words)
 {
-		sof_dsp_arch_ops(sdev)->dsp_stack(sdev, oops, stack, stack_words);
+		sof_dsp_arch_ops(sdev)->dsp_stack(sdev, level,  oops, stack,
+						  stack_words);
 }
 
-static inline void sof_oops(struct snd_sof_dev *sdev, void *oops)
+static inline void sof_oops(struct snd_sof_dev *sdev, const char *level, void *oops)
 {
 	if (sof_dsp_arch_ops(sdev)->dsp_oops)
-		sof_dsp_arch_ops(sdev)->dsp_oops(sdev, oops);
+		sof_dsp_arch_ops(sdev)->dsp_oops(sdev, level, oops);
 }
 
 extern const struct dsp_arch_ops sof_xtensa_arch_ops;

sound/soc/sof/xtensa/core.c

@@ -81,33 +81,39 @@ static const struct xtensa_exception_cause xtensa_exception_causes[] = {
 };
 
 /* only need xtensa atm */
-static void xtensa_dsp_oops(struct snd_sof_dev *sdev, void *oops)
+static void xtensa_dsp_oops(struct snd_sof_dev *sdev, const char *level, void *oops)
 {
 	struct sof_ipc_dsp_oops_xtensa *xoops = oops;
 	int i;
 
-	dev_err(sdev->dev, "error: DSP Firmware Oops\n");
+	dev_printk(level, sdev->dev, "error: DSP Firmware Oops\n");
 	for (i = 0; i < ARRAY_SIZE(xtensa_exception_causes); i++) {
 		if (xtensa_exception_causes[i].id == xoops->exccause) {
-			dev_err(sdev->dev, "error: Exception Cause: %s, %s\n",
-				xtensa_exception_causes[i].msg,
-				xtensa_exception_causes[i].description);
+			dev_printk(level, sdev->dev,
+				   "error: Exception Cause: %s, %s\n",
+				   xtensa_exception_causes[i].msg,
+				   xtensa_exception_causes[i].description);
 		}
 	}
-	dev_err(sdev->dev, "EXCCAUSE 0x%8.8x EXCVADDR 0x%8.8x PS       0x%8.8x SAR     0x%8.8x\n",
-		xoops->exccause, xoops->excvaddr, xoops->ps, xoops->sar);
-	dev_err(sdev->dev, "EPC1     0x%8.8x EPC2     0x%8.8x EPC3     0x%8.8x EPC4    0x%8.8x",
-		xoops->epc1, xoops->epc2, xoops->epc3, xoops->epc4);
-	dev_err(sdev->dev, "EPC5     0x%8.8x EPC6     0x%8.8x EPC7     0x%8.8x DEPC    0x%8.8x",
-		xoops->epc5, xoops->epc6, xoops->epc7, xoops->depc);
-	dev_err(sdev->dev, "EPS2     0x%8.8x EPS3     0x%8.8x EPS4     0x%8.8x EPS5    0x%8.8x",
-		xoops->eps2, xoops->eps3, xoops->eps4, xoops->eps5);
-	dev_err(sdev->dev, "EPS6     0x%8.8x EPS7     0x%8.8x INTENABL 0x%8.8x INTERRU 0x%8.8x",
-		xoops->eps6, xoops->eps7, xoops->intenable, xoops->interrupt);
+	dev_printk(level, sdev->dev,
+		   "EXCCAUSE 0x%8.8x EXCVADDR 0x%8.8x PS       0x%8.8x SAR     0x%8.8x\n",
+		   xoops->exccause, xoops->excvaddr, xoops->ps, xoops->sar);
+	dev_printk(level, sdev->dev,
+		   "EPC1     0x%8.8x EPC2     0x%8.8x EPC3     0x%8.8x EPC4    0x%8.8x",
+		   xoops->epc1, xoops->epc2, xoops->epc3, xoops->epc4);
+	dev_printk(level, sdev->dev,
+		   "EPC5     0x%8.8x EPC6     0x%8.8x EPC7     0x%8.8x DEPC    0x%8.8x",
+		   xoops->epc5, xoops->epc6, xoops->epc7, xoops->depc);
+	dev_printk(level, sdev->dev,
+		   "EPS2     0x%8.8x EPS3     0x%8.8x EPS4     0x%8.8x EPS5    0x%8.8x",
+		   xoops->eps2, xoops->eps3, xoops->eps4, xoops->eps5);
+	dev_printk(level, sdev->dev,
+		   "EPS6     0x%8.8x EPS7     0x%8.8x INTENABL 0x%8.8x INTERRU 0x%8.8x",
+		   xoops->eps6, xoops->eps7, xoops->intenable, xoops->interrupt);
 }
 
-static void xtensa_stack(struct snd_sof_dev *sdev, void *oops, u32 *stack,
-			 u32 stack_words)
+static void xtensa_stack(struct snd_sof_dev *sdev, const char *level, void *oops,
+			 u32 *stack, u32 stack_words)
 {
 	struct sof_ipc_dsp_oops_xtensa *xoops = oops;
 	u32 stack_ptr = xoops->plat_hdr.stackptr;
@@ -115,7 +121,7 @@ static void xtensa_stack(struct snd_sof_dev *sdev, void *oops, u32 *stack,
 	unsigned char buf[4 * 8 + 3 + 1];
 	int i;
 
-	dev_err(sdev->dev, "stack dump from 0x%8.8x\n", stack_ptr);
+	dev_printk(level, sdev->dev, "stack dump from 0x%8.8x\n", stack_ptr);
 
 	/*
 	 * example output:
@@ -124,7 +130,7 @@ static void xtensa_stack(struct snd_sof_dev *sdev, void *oops, u32 *stack,
 	for (i = 0; i < stack_words; i += 4) {
 		hex_dump_to_buffer(stack + i, 16, 16, 4,
 				   buf, sizeof(buf), false);
-		dev_err(sdev->dev, "0x%08x: %s\n", stack_ptr + i * 4, buf);
+		dev_printk(level, sdev->dev, "0x%08x: %s\n", stack_ptr + i * 4, buf);
 	}
 }