Skip to content

ASoC: SOF: ipc4-topology: Add module parameter to ignore the CPC value #4531

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
plbossart merged 1 commit into from
Aug 21, 2023
Merged

ASoC: SOF: ipc4-topology: Add module parameter to ignore the CPC value #4531

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
26 changes: 23 additions & 3 deletions sound/soc/sof/ipc4-topology.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,19 @@
#include "ipc4-topology.h"
#include "ops.h"

/*
* The ignore_cpc flag can be used to ignore the CPC value for all modules by
* using 0 instead.
* The CPC is sent to the firmware along with the SOF_IPC4_MOD_INIT_INSTANCE
* message and it is used for clock scaling.
* 0 as CPC value will instruct the firmware to use maximum frequency, thus
* deactivating the clock scaling.
*/
static bool ignore_cpc;
module_param_named(ipc4_ignore_cpc, ignore_cpc, bool, 0444);
MODULE_PARM_DESC(ipc4_ignore_cpc,
"Ignore CPC values. This option will disable clock scaling in firmware.");

#define SOF_IPC4_GAIN_PARAM_ID 0
#define SOF_IPC4_TPLG_ABI_SIZE 6
#define SOF_IPC4_CHAIN_DMA_BUF_SIZE_MS 2
Expand Down Expand Up @@ -970,9 +983,16 @@ sof_ipc4_update_resource_usage(struct snd_sof_dev *sdev, struct snd_sof_widget *
/* Update base_config->cpc from the module manifest */
sof_ipc4_update_cpc_from_manifest(sdev, fw_module, base_config);

dev_dbg(sdev->dev, "%s: ibs / obs / cpc: %u / %u / %u\n",
swidget->widget->name, base_config->ibs, base_config->obs,
base_config->cpc);
if (ignore_cpc) {
dev_dbg(sdev->dev, "%s: ibs / obs: %u / %u, forcing cpc to 0 from %u\n",
swidget->widget->name, base_config->ibs, base_config->obs,
base_config->cpc);
base_config->cpc = 0;
} else {
dev_dbg(sdev->dev, "%s: ibs / obs / cpc: %u / %u / %u\n",
swidget->widget->name, base_config->ibs, base_config->obs,
base_config->cpc);
}
}

static int sof_ipc4_widget_assign_instance_id(struct snd_sof_dev *sdev,
Expand Down