basefw: add support for fw config query for context save

If CONFIG_ADSP_IMR_CONTEXT_SAVE is enabled, base fw will report
fw_context_save is supported to host. Driver will assume fw doesn't
support this feature if it is not reported.

Signed-off-by: Rander Wang <rander.wang@intel.com>

Author: RanderWang

src/audio/base_fw.c

@@ -111,6 +111,10 @@ static int basefw_config(uint32_t *data_offset, char *data)
 	sche_cfg.sys_tick_source = SOF_SCHEDULE_LL_TIMER;
 	tlv_value_set(tuple, IPC4_SCHEDULER_CONFIGURATION, sizeof(sche_cfg), &sche_cfg);
 
+	tuple = tlv_next(tuple);
+	tlv_value_uint32_set(tuple, IPC4_FW_CONTEXT_SAVE,
+			     IS_ENABLED(CONFIG_ADSP_IMR_CONTEXT_SAVE));
+
 	tuple = tlv_next(tuple);
 	*data_offset = (int)((char *)tuple - data);
 

src/include/ipc4/base_fw.h

@@ -365,6 +365,8 @@ enum ipc4_fw_config_params {
 	IPC4_KPB_RT_SINK_COUNT = 27,
 	/* Manual control of DMI L1 state */
 	IPC4_DMI_FORCE_L1_EXIT = 28,
+	/* FW context save on D3 entry */
+	IPC4_FW_CONTEXT_SAVE = 29,
 	/* Total number of FW config parameters  */
 	IPC4_FW_CFG_PARAMS_COUNT,
 	/* Max config parameter id */