ASoC: SOF: dma-trace: Pass pointer to params_ext struct in trace_init()

Instead of passing a pointer to the stream_tag within the
struct sof_ipc_dma_trace_params_ext, pass the pointer to the containing
struct.

AMD needs to update buffer.phy_addr (and don't really use the stream_tag)
for the trace implementation.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220128123623.23569-3-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/amd/acp-trace.c

@@ -34,51 +34,31 @@ int acp_sof_trace_release(struct snd_sof_dev *sdev)
 }
 EXPORT_SYMBOL_NS(acp_sof_trace_release, SND_SOC_SOF_AMD_COMMON);
 
-static int acp_sof_trace_prepare(struct snd_sof_dev *sdev,
+int acp_sof_trace_init(struct snd_sof_dev *sdev,
-				 struct sof_ipc_dma_trace_params_ext *params)
+		       struct sof_ipc_dma_trace_params_ext *dtrace_params)
 {
 	struct acp_dsp_stream *stream;
 	struct acp_dev_data *adata;
 	int ret;
 
-	adata = sdev->pdata->hw_pdata;
-	stream = adata->dtrace_stream;
-	stream->dmab = &sdev->dmatb;
-	stream->num_pages = NUM_PAGES;
-
-	ret = acp_dsp_stream_config(sdev, stream);
-	if (ret < 0) {
-		dev_err(sdev->dev, "Failed to configure trace stream\n");
-		return ret;
-	}
-
-	params->buffer.phy_addr = stream->reg_offset;
-	params->stream_tag = stream->stream_tag;
-
-	return 0;
-}
-
-int acp_sof_trace_init(struct snd_sof_dev *sdev, u32 *stream_tag)
-{
-	struct sof_ipc_dma_trace_params_ext *params;
-	struct acp_dsp_stream *stream;
-	struct acp_dev_data *adata;
-	int ret;
-
 	adata = sdev->pdata->hw_pdata;
 	stream = acp_dsp_stream_get(sdev, ACP_LOGGER_STREAM);
 	if (!stream)
 		return -ENODEV;
 
-	adata->dtrace_stream = stream;
+	stream->dmab = &sdev->dmatb;
-	params = container_of(stream_tag, struct sof_ipc_dma_trace_params_ext, stream_tag);
+	stream->num_pages = NUM_PAGES;
-	ret = acp_sof_trace_prepare(sdev, params);
+
+	ret = acp_dsp_stream_config(sdev, stream);
 	if (ret < 0) {
 		acp_dsp_stream_put(sdev, stream);
 		return ret;
 	}
 
-	*stream_tag = stream->stream_tag;
+	adata->dtrace_stream = stream;
+	dtrace_params->stream_tag = stream->stream_tag;
+	dtrace_params->buffer.phy_addr = stream->reg_offset;
+
 	return 0;
 }
 EXPORT_SYMBOL_NS(acp_sof_trace_init, SND_SOC_SOF_AMD_COMMON);

sound/soc/sof/amd/acp.h

@@ -210,7 +210,8 @@ extern const struct snd_sof_dsp_ops sof_renoir_ops;
 int snd_amd_acp_find_config(struct pci_dev *pci);
 
 /* Trace */
-int acp_sof_trace_init(struct snd_sof_dev *sdev, u32 *stream_tag);
+int acp_sof_trace_init(struct snd_sof_dev *sdev,
+		       struct sof_ipc_dma_trace_params_ext *dtrace_params);
 int acp_sof_trace_release(struct snd_sof_dev *sdev);
 
 struct sof_amd_acp_desc {

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

@@ -36,7 +36,8 @@ static int hda_dsp_trace_prepare(struct snd_sof_dev *sdev, struct snd_dma_buffer
 	return ret;
 }
 
-int hda_dsp_trace_init(struct snd_sof_dev *sdev, u32 *stream_tag)
+int hda_dsp_trace_init(struct snd_sof_dev *sdev,
+		       struct sof_ipc_dma_trace_params_ext *dtrace_params)
 {
 	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
 	int ret;
@@ -50,7 +51,7 @@ int hda_dsp_trace_init(struct snd_sof_dev *sdev, u32 *stream_tag)
 		return -ENODEV;
 	}
 
-	*stream_tag = hda->dtrace_stream->hstream.stream_tag;
+	dtrace_params->stream_tag = hda->dtrace_stream->hstream.stream_tag;
 
 	/*
 	 * initialize capture stream, set BDL address and return corresponding
@@ -59,9 +60,10 @@ int hda_dsp_trace_init(struct snd_sof_dev *sdev, u32 *stream_tag)
 	ret = hda_dsp_trace_prepare(sdev, &sdev->dmatb);
 	if (ret < 0) {
 		dev_err(sdev->dev, "error: hdac trace init failed: %d\n", ret);
-		hda_dsp_stream_put(sdev, SNDRV_PCM_STREAM_CAPTURE, *stream_tag);
+		hda_dsp_stream_put(sdev, SNDRV_PCM_STREAM_CAPTURE,
+				   dtrace_params->stream_tag);
 		hda->dtrace_stream = NULL;
-		*stream_tag = 0;
+		dtrace_params->stream_tag = 0;
 	}
 
 	return ret;

sound/soc/sof/intel/hda.h

@@ -670,7 +670,8 @@ static inline int hda_codec_i915_exit(struct snd_sof_dev *sdev) { return 0; }
 /*
  * Trace Control.
  */
-int hda_dsp_trace_init(struct snd_sof_dev *sdev, u32 *stream_tag);
+int hda_dsp_trace_init(struct snd_sof_dev *sdev,
+		       struct sof_ipc_dma_trace_params_ext *dtrace_params);
 int hda_dsp_trace_release(struct snd_sof_dev *sdev);
 int hda_dsp_trace_trigger(struct snd_sof_dev *sdev, int cmd);
 

sound/soc/sof/ops.h

@@ -369,10 +369,10 @@ static inline int snd_sof_dsp_send_msg(struct snd_sof_dev *sdev,
 
 /* host DMA trace */
 static inline int snd_sof_dma_trace_init(struct snd_sof_dev *sdev,
-					 u32 *stream_tag)
+					 struct sof_ipc_dma_trace_params_ext *dtrace_params)
 {
 	if (sof_ops(sdev)->trace_init)
-		return sof_ops(sdev)->trace_init(sdev, stream_tag);
+		return sof_ops(sdev)->trace_init(sdev, dtrace_params);
 
 	return 0;
 }

sound/soc/sof/sof-priv.h

@@ -281,7 +281,7 @@ struct snd_sof_dsp_ops {
 
 	/* host DMA trace initialization */
 	int (*trace_init)(struct snd_sof_dev *sdev,
-			  u32 *stream_tag); /* optional */
+			  struct sof_ipc_dma_trace_params_ext *dtrace_params); /* optional */
 	int (*trace_release)(struct snd_sof_dev *sdev); /* optional */
 	int (*trace_trigger)(struct snd_sof_dev *sdev,
 			     int cmd); /* optional */

sound/soc/sof/trace.c

@@ -409,7 +409,7 @@ int snd_sof_init_trace_ipc(struct snd_sof_dev *sdev)
 	sdev->host_offset = 0;
 	sdev->dtrace_draining = false;
 
-	ret = snd_sof_dma_trace_init(sdev, &params.stream_tag);
+	ret = snd_sof_dma_trace_init(sdev, &params);
 	if (ret < 0) {
 		dev_err(sdev->dev,
 			"error: fail in snd_sof_dma_trace_init %d\n", ret);