From ace9b3daf2b4778358573d3698e34cb1c0fa7e14 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Thu, 19 Jun 2025 13:56:23 +0300 Subject: ASoC: SOF: ipc4/Intel: Add support for library restore firmware functionality The firmware will be able to only save and restore the context related to library management. This means that even without a full context save, the libraries do not need to be re-loaded to the firmware after second or consecutive boots. This is reported via the FW_READY notification, where BIT(15) indicates: 0 - the library restore is not done 1 - library restore is done This bit is only valid if full context save is not enabled, full context save is by definition saves and restores the library related book-keeping as well. Add a new flag to tell the platform code if the libraries have been restored, no need to reload them after boot. Signed-off-by: Peter Ujfalusi Reviewed-by: Guennadi Liakhovetski Reviewed-by: Liam Girdwood Reviewed-by: Ranjani Sridharan Reviewed-by: Bard Liao Reviewed-by: Kai Vehmanen Link: https://patch.msgid.link/20250619105623.4546-3-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown --- sound/soc/sof/intel/hda-loader.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'sound/soc/sof/intel') diff --git a/sound/soc/sof/intel/hda-loader.c b/sound/soc/sof/intel/hda-loader.c index 49085ca7b46b..2cc11d8b0f70 100644 --- a/sound/soc/sof/intel/hda-loader.c +++ b/sound/soc/sof/intel/hda-loader.c @@ -579,8 +579,11 @@ int hda_dsp_ipc4_load_library(struct snd_sof_dev *sdev, struct sof_ipc4_msg msg = {}; int ret, ret1; - /* if IMR booting is enabled and fw context is saved for D3 state, skip the loading */ - if (reload && hda->booted_from_imr && ipc4_data->fw_context_save) + /* + * if IMR booting is enabled and libraries have been restored during fw + * boot, skip the loading + */ + if (reload && hda->booted_from_imr && ipc4_data->libraries_restored) return 0; /* the fw_lib has been verified during loading, we can trust the validity here */ -- cgit v1.2.3