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Thu, 4 Aug 2022 02:22:39 -0500 From: Venkata Prasad Potturu To: , Subject: [PATCH v4] ASoC: amd: acp: Initialize list to store acp_stream during pcm_open Date: Thu, 4 Aug 2022 12:55:49 +0530 Message-ID: <20220804072556.601396-1-venkataprasad.potturu@amd.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 652231fd-dd2b-420f-7164-08da75ea22e8 X-MS-TrafficTypeDiagnostic: DM6PR12MB4878:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17; CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230016)(4636009)(376002)(136003)(396003)(39860400002)(346002)(36840700001)(40470700004)(46966006)(426003)(336012)(47076005)(1076003)(2616005)(186003)(82740400003)(356005)(81166007)(40460700003)(83380400001)(36860700001)(8936002)(5660300002)(8676002)(4326008)(70206006)(70586007)(82310400005)(40480700001)(2906002)(6666004)(41300700001)(478600001)(7696005)(26005)(54906003)(316002)(110136005)(36756003)(86362001)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Aug 2022 07:22:49.4177 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 652231fd-dd2b-420f-7164-08da75ea22e8 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT011.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4878 Cc: Sunil-kumar.Dommati@amd.com, Charles Keepax , ssabakar@amd.com, Ajit Kumar Pandey , Venkata Prasad Potturu , open list , Basavaraj.Hiregoudar@amd.com, Takashi Iwai , Liam Girdwood , Nathan Chancellor , Vijendar.Mukunda@amd.com, V sujith kumar Reddy X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" From: Ajit Kumar Pandey 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 Signed-off-by: Venkata Prasad Potturu Reviewed-by: Vijendar Mukunda --- Changes since v3: -- Modify to spin_lock() in irq handler and spin_lock_irq() in dma open and close functions instead of spin_lock_irqsave(). Changes since v2: -- Add locking mechanism in irq handler, linked list updatation and deletion. Changes since v1: -- Fix compile error and remove unused variable. sound/soc/amd/acp/acp-platform.c | 40 +++++++++++++++----------------- sound/soc/amd/acp/amd.h | 4 +++- 2 files changed, 22 insertions(+), 22 deletions(-) diff --git a/sound/soc/amd/acp/acp-platform.c b/sound/soc/amd/acp/acp-platform.c index f561d39b33e2..beee53aedeaf 100644 --- a/sound/soc/amd/acp/acp-platform.c +++ b/sound/soc/amd/acp/acp-platform.c @@ -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); diff --git a/sound/soc/amd/acp/amd.h b/sound/soc/amd/acp/amd.h index 60a7c95f134f..be8bb8247c4e 100644 --- a/sound/soc/amd/acp/amd.h +++ b/sound/soc/amd/acp/amd.h @@ -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; -- 2.25.1