From: Bard Liao yung-chuan.liao@linux.intel.com
The existing code allocate/release instance_id in widget ipc_prepare/ ipc_unprepare callbacks and creating widget with the instance_id in tplg widget_setup callback. In the case of multiple widgets connecting to one widget, the ipc_unprepare will be invoked for all the widgets in the path including the widget which is still in use. As a result, the instance_id is released in the ipc_unprepare callback, but the widget is still in use and the instance_id will be reused by a new widget when we start the PCM again. Moving the ida work from ipc_prepare/ipc_unprepare to widget_setup/free can avoid such problem.
Reviewed-by: Péter Ujfalusi peter.ujfalusi@linux.intel.com Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/sof/ipc4-topology.c | 36 ++++++++++++++++------------------- 1 file changed, 16 insertions(+), 20 deletions(-)
diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c index 22ea628d78d0..f77091918118 100644 --- a/sound/soc/sof/ipc4-topology.c +++ b/sound/soc/sof/ipc4-topology.c @@ -891,7 +891,6 @@ static int sof_ipc4_init_audio_fmt(struct snd_sof_dev *sdev,
static void sof_ipc4_unprepare_copier_module(struct snd_sof_widget *swidget) { - struct sof_ipc4_fw_module *fw_module = swidget->module_info; struct sof_ipc4_copier *ipc4_copier = NULL; struct snd_sof_widget *pipe_widget; struct sof_ipc4_pipeline *pipeline; @@ -925,8 +924,6 @@ static void sof_ipc4_unprepare_copier_module(struct snd_sof_widget *swidget) ipc4_copier->ipc_config_data = NULL; ipc4_copier->ipc_config_size = 0; } - - ida_free(&fw_module->m_ida, swidget->instance_id); }
#if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_INTEL_NHLT) @@ -1254,15 +1251,7 @@ sof_ipc4_prepare_copier_module(struct snd_sof_widget *swidget, /* update pipeline memory usage */ sof_ipc4_update_pipeline_mem_usage(sdev, swidget, &copier_data->base_config);
- /* assign instance ID */ - return sof_ipc4_widget_assign_instance_id(sdev, swidget); -} - -static void sof_ipc4_unprepare_generic_module(struct snd_sof_widget *swidget) -{ - struct sof_ipc4_fw_module *fw_module = swidget->module_info; - - ida_free(&fw_module->m_ida, swidget->instance_id); + return 0; }
static int sof_ipc4_prepare_gain_module(struct snd_sof_widget *swidget, @@ -1287,8 +1276,7 @@ static int sof_ipc4_prepare_gain_module(struct snd_sof_widget *swidget, /* update pipeline memory usage */ sof_ipc4_update_pipeline_mem_usage(sdev, swidget, &gain->base_config);
- /* assign instance ID */ - return sof_ipc4_widget_assign_instance_id(sdev, swidget); + return 0; }
static int sof_ipc4_prepare_mixer_module(struct snd_sof_widget *swidget, @@ -1314,8 +1302,7 @@ static int sof_ipc4_prepare_mixer_module(struct snd_sof_widget *swidget, /* update pipeline memory usage */ sof_ipc4_update_pipeline_mem_usage(sdev, swidget, &mixer->base_config);
- /* assign instance ID */ - return sof_ipc4_widget_assign_instance_id(sdev, swidget); + return 0; }
static int sof_ipc4_control_load_volume(struct snd_sof_dev *sdev, struct snd_sof_control *scontrol) @@ -1373,8 +1360,6 @@ static int sof_ipc4_widget_setup(struct snd_sof_dev *sdev, struct snd_sof_widget u32 ipc_size = 0; int ret;
- dev_dbg(sdev->dev, "Create widget %s instance %d - pipe %d - core %d\n", - swidget->widget->name, swidget->instance_id, swidget->pipeline_id, swidget->core);
switch (swidget->id) { case snd_soc_dapm_scheduler: @@ -1436,6 +1421,12 @@ static int sof_ipc4_widget_setup(struct snd_sof_dev *sdev, struct snd_sof_widget }
if (swidget->id != snd_soc_dapm_scheduler) { + ret = sof_ipc4_widget_assign_instance_id(sdev, swidget); + if (ret < 0) { + dev_err(sdev->dev, "failed to assign instance id for %s\n", + swidget->widget->name); + return ret; + } pipeline = pipe_widget->private; msg->primary &= ~SOF_IPC4_MOD_INSTANCE_MASK; msg->primary |= SOF_IPC4_MOD_INSTANCE(swidget->instance_id); @@ -1445,6 +1436,8 @@ static int sof_ipc4_widget_setup(struct snd_sof_dev *sdev, struct snd_sof_widget msg->extension &= ~SOF_IPC4_MOD_EXT_DOMAIN_MASK; msg->extension |= SOF_IPC4_MOD_EXT_DOMAIN(pipeline->lp_mode); } + dev_dbg(sdev->dev, "Create widget %s instance %d - pipe %d - core %d\n", + swidget->widget->name, swidget->instance_id, swidget->pipeline_id, swidget->core);
msg->data_size = ipc_size; msg->data_ptr = ipc_data; @@ -1458,6 +1451,7 @@ static int sof_ipc4_widget_setup(struct snd_sof_dev *sdev, struct snd_sof_widget
static int sof_ipc4_widget_free(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget) { + struct sof_ipc4_fw_module *fw_module = swidget->module_info; int ret = 0;
/* freeing a pipeline frees all the widgets associated with it */ @@ -1480,6 +1474,8 @@ static int sof_ipc4_widget_free(struct snd_sof_dev *sdev, struct snd_sof_widget
pipeline->mem_usage = 0; pipeline->state = SOF_IPC4_PIPE_UNINITIALIZED; + } else { + ida_free(&fw_module->m_ida, swidget->instance_id); }
return ret; @@ -1789,11 +1785,11 @@ static const struct sof_ipc_tplg_widget_ops tplg_ipc4_widget_ops[SND_SOC_DAPM_TY [snd_soc_dapm_pga] = {sof_ipc4_widget_setup_comp_pga, sof_ipc4_widget_free_comp_pga, pga_token_list, ARRAY_SIZE(pga_token_list), NULL, sof_ipc4_prepare_gain_module, - sof_ipc4_unprepare_generic_module}, + NULL}, [snd_soc_dapm_mixer] = {sof_ipc4_widget_setup_comp_mixer, sof_ipc4_widget_free_comp_mixer, mixer_token_list, ARRAY_SIZE(mixer_token_list), NULL, sof_ipc4_prepare_mixer_module, - sof_ipc4_unprepare_generic_module}, + NULL}, };
const struct sof_ipc_tplg_ops ipc4_tplg_ops = {