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ASoC: SOF: Intel: hda: Create debugfs file to force a clean DSP boot

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When IMR boot is supported on a platform it is always going to be used to
boot the DSP unless some catastrophic event happens.
There is no way for a developer to force a clean DSP boot without removing
and re-inserting the modules.

Create a 'skip_imr_boot' debugfs file which can be used to force the
next DSP boot as clean (prune) boot.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://msgid.link/r/20240403105210.17949-2-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Peter Ujfalusi 2024-04-03 13:52:04 +03:00 committed by Mark Brown
parent 953db8ded1
commit bbdf9af261
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
4 changed files with 19 additions and 3 deletions
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7
sound/soc/sof/intel/hda-loader.c
View File

@ -15,6 +15,7 @@
* Hardware interface for HDA DSP code loader
*/
#include <linux/debugfs.h>
#include <linux/firmware.h>
#include <sound/hdaudio_ext.h>
#include <sound/hda_register.h>
@ -643,8 +644,12 @@ int hda_dsp_post_fw_run(struct snd_sof_dev *sdev)
/* Check if IMR boot is usable */
if (!sof_debug_check_flag(SOF_DBG_IGNORE_D3_PERSISTENT) &&
(sdev->fw_ready.flags & SOF_IPC_INFO_D3_PERSISTENT ||
sdev->pdata->ipc_type == SOF_IPC_TYPE_4))
sdev->pdata->ipc_type == SOF_IPC_TYPE_4)) {
hdev->imrboot_supported = true;
debugfs_create_bool("skip_imr_boot",
0644, sdev->debugfs_root,
&hdev->skip_imr_boot);
}
}
hda_sdw_int_enable(sdev, true);

1
sound/soc/sof/intel/hda.c
View File

@ -19,6 +19,7 @@
#include <sound/hda_register.h>
#include <linux/acpi.h>
#include <linux/debugfs.h>
#include <linux/module.h>
#include <linux/soundwire/sdw.h>
#include <linux/soundwire/sdw_intel.h>

7
sound/soc/sof/intel/lnl.c
View File

@ -6,6 +6,7 @@
* Hardware interface for audio DSP on LunarLake.
*/
#include <linux/debugfs.h>
#include <linux/firmware.h>
#include <sound/hda_register.h>
#include <sound/sof/ipc4/header.h>
@ -83,8 +84,12 @@ static int lnl_dsp_post_fw_run(struct snd_sof_dev *sdev)
struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
/* Check if IMR boot is usable */
if (!sof_debug_check_flag(SOF_DBG_IGNORE_D3_PERSISTENT))
if (!sof_debug_check_flag(SOF_DBG_IGNORE_D3_PERSISTENT)) {
hda->imrboot_supported = true;
debugfs_create_bool("skip_imr_boot",
0644, sdev->debugfs_root,
&hda->skip_imr_boot);
}
}
return 0;

7
sound/soc/sof/intel/mtl.c
View File

@ -9,6 +9,7 @@
* Hardware interface for audio DSP on Meteorlake.
*/
#include <linux/debugfs.h>
#include <linux/firmware.h>
#include <sound/sof/ipc4/header.h>
#include <trace/events/sof_intel.h>
@ -294,8 +295,12 @@ int mtl_dsp_post_fw_run(struct snd_sof_dev *sdev)
}
/* Check if IMR boot is usable */
if (!sof_debug_check_flag(SOF_DBG_IGNORE_D3_PERSISTENT))
if (!sof_debug_check_flag(SOF_DBG_IGNORE_D3_PERSISTENT)) {
hdev->imrboot_supported = true;
debugfs_create_bool("skip_imr_boot",
0644, sdev->debugfs_root,
&hdev->skip_imr_boot);
}
}
hda_sdw_int_enable(sdev, true);