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ASoC: amd: acp: Initialize list to store acp_stream during pcm_open

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We are currently allocating acp_stream during pcm_open and saving
it in static array corresponds to array index calculated based on
cpu dai->driver id. This approach will fail if we have single dai
linked to multiple pcm device as we will have same dai->driver id
or array index for multiple pcm open. Initialize new linked list
stream_list to store opened pcm stream info dynamically.

Signed-off-by: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
Signed-off-by: Venkata Prasad Potturu <venkataprasad.potturu@amd.com>
Reviewed-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20220810132913.1181247-2-venkataprasad.potturu@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ajit Kumar Pandey 2022-08-10 18:59:12 +05:30 committed by Mark Brown
parent 4d39265b93
commit 7929985cfe
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 22 additions and 22 deletions
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40
sound/soc/amd/acp/acp-platform.c
View File

@ -94,7 +94,7 @@ static irqreturn_t i2s_irq_handler(int irq, void *data)
struct acp_resource *rsrc = adata->rsrc;
struct acp_stream *stream;
u16 i2s_flag = 0;
u32 ext_intr_stat, ext_intr_stat1, i;
u32 ext_intr_stat, ext_intr_stat1;
if (!adata)
return IRQ_NONE;
@ -104,14 +104,13 @@ static irqreturn_t i2s_irq_handler(int irq, void *data)
ext_intr_stat = readl(ACP_EXTERNAL_INTR_STAT(adata, rsrc->irqp_used));
for (i = 0; i < ACP_MAX_STREAM; i++) {
stream = adata->stream[i];
spin_lock(&adata->acp_lock);
list_for_each_entry(stream, &adata->stream_list, list) {
if (stream && (ext_intr_stat & stream->irq_bit)) {
writel(stream->irq_bit,
ACP_EXTERNAL_INTR_STAT(adata, rsrc->irqp_used));
snd_pcm_period_elapsed(stream->substream);
i2s_flag = 1;
break;
}
if (adata->rsrc->no_of_ctrls == 2) {
if (stream && (ext_intr_stat1 & stream->irq_bit)) {
@ -119,10 +118,10 @@ static irqreturn_t i2s_irq_handler(int irq, void *data)
(rsrc->irqp_used - 1)));
snd_pcm_period_elapsed(stream->substream);
i2s_flag = 1;
break;
}
}
}
spin_unlock(&adata->acp_lock);
if (i2s_flag)
return IRQ_HANDLED;
@ -146,9 +145,8 @@ static void config_pte_for_stream(struct acp_dev_data *adata, struct acp_stream
writel(0x01, adata->acp_base + ACPAXI2AXI_ATU_CTRL);
}
static void config_acp_dma(struct acp_dev_data *adata, int cpu_id, int size)
static void config_acp_dma(struct acp_dev_data *adata, struct acp_stream *stream, int size)
{
struct acp_stream *stream = adata->stream[cpu_id];
struct snd_pcm_substream *substream = stream->substream;
struct acp_resource *rsrc = adata->rsrc;
dma_addr_t addr = substream->dma_buffer.addr;
@ -174,13 +172,10 @@ static void config_acp_dma(struct acp_dev_data *adata, int cpu_id, int size)
static int acp_dma_open(struct snd_soc_component *component, struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
struct snd_pcm_runtime *runtime = substream->runtime;
struct device *dev = component->dev;
struct acp_dev_data *adata = dev_get_drvdata(dev);
struct acp_stream *stream;
int stream_id = cpu_dai->driver->id * 2 + substream->stream;
int ret;
stream = kzalloc(sizeof(*stream), GFP_KERNEL);
@ -188,7 +183,10 @@ static int acp_dma_open(struct snd_soc_component *component, struct snd_pcm_subs
return -ENOMEM;
stream->substream = substream;
adata->stream[stream_id] = stream;
spin_lock_irq(&adata->acp_lock);
list_add_tail(&stream->list, &adata->stream_list);
spin_unlock_irq(&adata->acp_lock);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
runtime->hw = acp_pcm_hardware_playback;
@ -212,16 +210,13 @@ static int acp_dma_hw_params(struct snd_soc_component *component,
struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
struct acp_dev_data *adata = snd_soc_component_get_drvdata(component);
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
struct acp_stream *stream = substream->runtime->private_data;
int stream_id = cpu_dai->driver->id * 2 + substream->stream;
u64 size = params_buffer_bytes(params);
/* Configure ACP DMA block with params */
config_pte_for_stream(adata, stream);
config_acp_dma(adata, stream_id, size);
config_acp_dma(adata, stream, size);
return 0;
}
@ -261,16 +256,15 @@ static int acp_dma_new(struct snd_soc_component *component,
static int acp_dma_close(struct snd_soc_component *component,
struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
struct device *dev = component->dev;
struct acp_dev_data *adata = dev_get_drvdata(dev);
struct acp_stream *stream;
int stream_id = cpu_dai->driver->id * 2 + substream->stream;
struct acp_stream *stream = substream->runtime->private_data;
stream = adata->stream[stream_id];
/* Remove entry from list */
spin_lock_irq(&adata->acp_lock);
list_del(&stream->list);
spin_unlock_irq(&adata->acp_lock);
kfree(stream);
adata->stream[stream_id] = NULL;
return 0;
}
@ -305,6 +299,10 @@ int acp_platform_register(struct device *dev)
dev_err(dev, "Fail to register acp i2s component\n");
return status;
}
INIT_LIST_HEAD(&adata->stream_list);
spin_lock_init(&adata->acp_lock);
return 0;
}
EXPORT_SYMBOL_NS_GPL(acp_platform_register, SND_SOC_ACP_COMMON);

4
sound/soc/amd/acp/amd.h
View File

@ -91,6 +91,7 @@ struct acp_chip_info {
};
struct acp_stream {
struct list_head list;
struct snd_pcm_substream *substream;
int irq_bit;
int dai_id;
@ -123,7 +124,8 @@ struct acp_dev_data {
struct snd_soc_dai_driver *dai_driver;
int num_dai;
struct acp_stream *stream[ACP_MAX_STREAM];
struct list_head stream_list;
spinlock_t acp_lock;
struct snd_soc_acpi_mach *machines;
struct platform_device *mach_dev;