[Deepin-Kernel-SIG] [Upstream] [linux 6.6-y] ASoC: Sync some intel patches from mainline v6.9 and v6.10

include/sound/hdaudio_ext.h

@@ -56,6 +56,9 @@ struct hdac_ext_stream {
 	u32 pphcldpl;
 	u32 pphcldpu;
 
+	u32 pplcllpl;
+	u32 pplcllpu;
+
 	bool decoupled:1;
 	bool link_locked:1;
 	bool link_prepared;

include/sound/intel-nhlt.h

@@ -143,6 +143,9 @@ intel_nhlt_get_endpoint_blob(struct device *dev, struct nhlt_acpi_table *nhlt,
 			     u32 bus_id, u8 link_type, u8 vbps, u8 bps,
 			     u8 num_ch, u32 rate, u8 dir, u8 dev_type);
 
+int intel_nhlt_ssp_device_type(struct device *dev, struct nhlt_acpi_table *nhlt,
+			       u8 virtual_bus_id);
+
 #else
 
 static inline struct nhlt_acpi_table *intel_nhlt_init(struct device *dev)
@@ -184,6 +187,13 @@ intel_nhlt_get_endpoint_blob(struct device *dev, struct nhlt_acpi_table *nhlt,
 	return NULL;
 }
 
+static inline int intel_nhlt_ssp_device_type(struct device *dev,
+					     struct nhlt_acpi_table *nhlt,
+					     u8 virtual_bus_id)
+{
+	return -EINVAL;
+}
+
 #endif
 
 #endif

sound/hda/intel-nhlt.c

@@ -343,3 +343,29 @@ intel_nhlt_get_endpoint_blob(struct device *dev, struct nhlt_acpi_table *nhlt,
 	return NULL;
 }
 EXPORT_SYMBOL(intel_nhlt_get_endpoint_blob);
+
+int intel_nhlt_ssp_device_type(struct device *dev, struct nhlt_acpi_table *nhlt,
+			       u8 virtual_bus_id)
+{
+	struct nhlt_endpoint *epnt;
+	int i;
+
+	if (!nhlt)
+		return -EINVAL;
+
+	epnt = (struct nhlt_endpoint *)nhlt->desc;
+	for (i = 0; i < nhlt->endpoint_count; i++) {
+		/* for SSP link the virtual bus id is the SSP port number */
+		if (epnt->linktype == NHLT_LINK_SSP &&
+		    epnt->virtual_bus_id == virtual_bus_id) {
+			dev_dbg(dev, "SSP%d: dev_type=%d\n", virtual_bus_id,
+				epnt->device_type);
+			return epnt->device_type;
+		}
+
+		epnt = (struct nhlt_endpoint *)((u8 *)epnt + epnt->length);
+	}
+
+	return -EINVAL;
+}
+EXPORT_SYMBOL(intel_nhlt_ssp_device_type);

sound/soc/sof/intel/hda-common-ops.c

@@ -56,6 +56,9 @@ struct snd_sof_dsp_ops sof_hda_common_ops = {
 	.pcm_pointer	= hda_dsp_pcm_pointer,
 	.pcm_ack	= hda_dsp_pcm_ack,
 
+	.get_dai_frame_counter = hda_dsp_get_stream_llp,
+	.get_host_byte_counter = hda_dsp_get_stream_ldp,
+
 	/* firmware loading */
 	.load_firmware = snd_sof_load_firmware_raw,
 
@@ -82,6 +85,7 @@ struct snd_sof_dsp_ops sof_hda_common_ops = {
 	/* DAI drivers */
 	.drv		= skl_dai,
 	.num_drv	= SOF_SKL_NUM_DAIS,
+	.is_chain_dma_supported	= hda_is_chain_dma_supported,
 
 	/* PM */
 	.suspend		= hda_dsp_suspend,

sound/soc/sof/intel/hda-dai-ops.c

@@ -7,6 +7,7 @@
 
 #include <sound/pcm_params.h>
 #include <sound/hdaudio_ext.h>
+#include <sound/hda_register.h>
 #include <sound/hda-mlink.h>
 #include <sound/sof/ipc4/header.h>
 #include <uapi/sound/sof/header.h>
@@ -361,6 +362,16 @@ static int hda_trigger(struct snd_sof_dev *sdev, struct snd_soc_dai *cpu_dai,
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 		snd_hdac_ext_stream_clear(hext_stream);
+
+		/*
+		 * Save the LLP registers in case the stream is
+		 * restarting due PAUSE_RELEASE, or START without a pcm
+		 * close/open since in this case the LLP register is not reset
+		 * to 0 and the delay calculation will return with invalid
+		 * results.
+		 */
+		hext_stream->pplcllpl = readl(hext_stream->pplc_addr + AZX_REG_PPLCLLPL);
+		hext_stream->pplcllpu = readl(hext_stream->pplc_addr + AZX_REG_PPLCLLPU);
 		break;
 	default:
 		dev_err(sdev->dev, "unknown trigger command %d\n", cmd);
@@ -521,6 +532,17 @@ static const struct hda_dai_widget_dma_ops hda_ipc4_chain_dma_ops = {
 	.get_hlink = hda_get_hlink,
 };
 
+static const struct hda_dai_widget_dma_ops sdw_ipc4_chain_dma_ops = {
+	.get_hext_stream = hda_get_hext_stream,
+	.assign_hext_stream = hda_assign_hext_stream,
+	.release_hext_stream = hda_release_hext_stream,
+	.setup_hext_stream = hda_setup_hext_stream,
+	.reset_hext_stream = hda_reset_hext_stream,
+	.trigger = hda_trigger,
+	.calc_stream_format = generic_calc_stream_format,
+	.get_hlink = sdw_get_hlink,
+};
+
 static int hda_ipc3_post_trigger(struct snd_sof_dev *sdev, struct snd_soc_dai *cpu_dai,
 				 struct snd_pcm_substream *substream, int cmd)
 {
@@ -619,22 +641,19 @@ hda_select_dai_widget_ops(struct snd_sof_dev *sdev, struct snd_sof_widget *swidg
 	}
 	case SOF_IPC_TYPE_4:
 	{
+		struct snd_sof_widget *pipe_widget = swidget->spipe->pipe_widget;
+		struct sof_ipc4_pipeline *pipeline = pipe_widget->private;
 		struct sof_ipc4_copier *ipc4_copier = sdai->private;
 		const struct sof_intel_dsp_desc *chip;
 
 		chip = get_chip_info(sdev->pdata);
 
 		switch (ipc4_copier->dai_type) {
 		case SOF_DAI_INTEL_HDA:
-		{
-			struct snd_sof_widget *pipe_widget = swidget->spipe->pipe_widget;
-			struct sof_ipc4_pipeline *pipeline = pipe_widget->private;
-
 			if (pipeline->use_chain_dma)
 				return &hda_ipc4_chain_dma_ops;
 
 			return &hda_ipc4_dma_ops;
-		}
 		case SOF_DAI_INTEL_SSP:
 			if (chip->hw_ip_version < SOF_INTEL_ACE_2_0)
 				return NULL;
@@ -646,6 +665,8 @@ hda_select_dai_widget_ops(struct snd_sof_dev *sdev, struct snd_sof_widget *swidg
 		case SOF_DAI_INTEL_ALH:
 			if (chip->hw_ip_version < SOF_INTEL_ACE_2_0)
 				return NULL;
+			if (pipeline->use_chain_dma)
+				return &sdw_ipc4_chain_dma_ops;
 			return &sdw_ipc4_dma_ops;
 
 		default:

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

@@ -83,12 +83,8 @@ hda_dai_get_ops(struct snd_pcm_substream *substream, struct snd_soc_dai *cpu_dai
 
 	sdev = widget_to_sdev(w);
 
-	/*
-	 * The swidget parameter of hda_select_dai_widget_ops() is ignored in
-	 * case of DSPless mode
-	 */
 	if (sdev->dspless_mode_selected)
-		return hda_select_dai_widget_ops(sdev, NULL);
+		return hda_select_dai_widget_ops(sdev, swidget);
 
 	sdai = swidget->private;
 

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

@@ -265,8 +265,37 @@ int hda_dsp_pcm_open(struct snd_sof_dev *sdev,
 		snd_pcm_hw_constraint_mask64(substream->runtime, SNDRV_PCM_HW_PARAM_FORMAT,
 					     SNDRV_PCM_FMTBIT_S16 | SNDRV_PCM_FMTBIT_S32);
 
+	/*
+	 * The dsp_max_burst_size_in_ms is the length of the maximum burst size
+	 * of the host DMA in the ALSA buffer.
+	 *
+	 * On playback start the DMA will transfer dsp_max_burst_size_in_ms
+	 * amount of data in one initial burst to fill up the host DMA buffer.
+	 * Consequent DMA burst sizes are shorter and their length can vary.
+	 * To make sure that userspace allocate large enough ALSA buffer we need
+	 * to place a constraint on the buffer time.
+	 *
+	 * On capture the DMA will transfer 1ms chunks.
+	 *
+	 * Exact dsp_max_burst_size_in_ms constraint is racy, so set the
+	 * constraint to a minimum of 2x dsp_max_burst_size_in_ms.
+	 */
+	if (spcm->stream[direction].dsp_max_burst_size_in_ms)
+		snd_pcm_hw_constraint_minmax(substream->runtime,
+			SNDRV_PCM_HW_PARAM_BUFFER_TIME,
+			spcm->stream[direction].dsp_max_burst_size_in_ms * USEC_PER_MSEC * 2,
+			UINT_MAX);
+
 	/* binding pcm substream to hda stream */
 	substream->runtime->private_data = &dsp_stream->hstream;
+
+	/*
+	 * Reset the llp cache values (they are used for LLP compensation in
+	 * case the counter is not reset)
+	 */
+	dsp_stream->pplcllpl = 0;
+	dsp_stream->pplcllpu = 0;
+
 	return 0;
 }
 

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

@@ -21,6 +21,7 @@
 #include <trace/events/sof_intel.h>
 #include "../ops.h"
 #include "../sof-audio.h"
+#include "../ipc4-priv.h"
 #include "hda.h"
 
 #define HDA_LTRP_GB_VALUE_US	95
@@ -937,6 +938,14 @@ int hda_dsp_stream_init(struct snd_sof_dev *sdev)
 	/* store total stream count (playback + capture) from GCAP */
 	sof_hda->stream_max = num_total;
 
+	/* store stream count from GCAP required for CHAIN_DMA */
+	if (sdev->pdata->ipc_type == SOF_IPC_TYPE_4) {
+		struct sof_ipc4_fw_data *ipc4_data = sdev->private;
+
+		ipc4_data->num_playback_streams = num_playback;
+		ipc4_data->num_capture_streams = num_capture;
+	}
+
 	return 0;
 }
 
@@ -1054,3 +1063,73 @@ snd_pcm_uframes_t hda_dsp_stream_get_position(struct hdac_stream *hstream,
 
 	return pos;
 }
+
+#define merge_u64(u32_u, u32_l) (((u64)(u32_u) << 32) | (u32_l))
+
+/**
+ * hda_dsp_get_stream_llp - Retrieve the LLP (Linear Link Position) of the stream
+ * @sdev: SOF device
+ * @component: ASoC component
+ * @substream: PCM substream
+ *
+ * Returns the raw Linear Link Position value
+ */
+u64 hda_dsp_get_stream_llp(struct snd_sof_dev *sdev,
+			   struct snd_soc_component *component,
+			   struct snd_pcm_substream *substream)
+{
+	struct hdac_stream *hstream = substream->runtime->private_data;
+	struct hdac_ext_stream *hext_stream = stream_to_hdac_ext_stream(hstream);
+	u32 llp_l, llp_u;
+
+	/*
+	 * The pplc_addr have been calculated during probe in
+	 * hda_dsp_stream_init():
+	 * pplc_addr = sdev->bar[HDA_DSP_PP_BAR] +
+	 *	       SOF_HDA_PPLC_BASE +
+	 *	       SOF_HDA_PPLC_MULTI * total_stream +
+	 *	       SOF_HDA_PPLC_INTERVAL * stream_index
+	 *
+	 * Use this pre-calculated address to avoid repeated re-calculation.
+	 */
+	llp_l = readl(hext_stream->pplc_addr + AZX_REG_PPLCLLPL);
+	llp_u = readl(hext_stream->pplc_addr + AZX_REG_PPLCLLPU);
+
+	/* Compensate the LLP counter with the saved offset */
+	if (hext_stream->pplcllpl || hext_stream->pplcllpu)
+		return merge_u64(llp_u, llp_l) -
+		       merge_u64(hext_stream->pplcllpu, hext_stream->pplcllpl);
+
+	return merge_u64(llp_u, llp_l);
+}
+
+/**
+ * hda_dsp_get_stream_ldp - Retrieve the LDP (Linear DMA Position) of the stream
+ * @sdev: SOF device
+ * @component: ASoC component
+ * @substream: PCM substream
+ *
+ * Returns the raw Linear Link Position value
+ */
+u64 hda_dsp_get_stream_ldp(struct snd_sof_dev *sdev,
+			   struct snd_soc_component *component,
+			   struct snd_pcm_substream *substream)
+{
+	struct hdac_stream *hstream = substream->runtime->private_data;
+	struct hdac_ext_stream *hext_stream = stream_to_hdac_ext_stream(hstream);
+	u32 ldp_l, ldp_u;
+
+	/*
+	 * The pphc_addr have been calculated during probe in
+	 * hda_dsp_stream_init():
+	 * pphc_addr = sdev->bar[HDA_DSP_PP_BAR] +
+	 *	       SOF_HDA_PPHC_BASE +
+	 *	       SOF_HDA_PPHC_INTERVAL * stream_index
+	 *
+	 * Use this pre-calculated address to avoid repeated re-calculation.
+	 */
+	ldp_l = readl(hext_stream->pphc_addr + AZX_REG_PPHCLDPL);
+	ldp_u = readl(hext_stream->pphc_addr + AZX_REG_PPHCLDPU);
+
+	return ((u64)ldp_u << 32) | ldp_l;
+}