ASoC: SOF: ipc3: Add set_core_state pm_ops implementation

IPC3 uses sof_ipc_pm_core_config message
(SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_CORE_ENABLE) to enable/disable cores
managed by the DSP.
The core state is set via a single bitfield, if the bit is 1 the core
should be on, if it is 0 then it is off.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220610083549.16773-4-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sof/ipc3.c b/sound/soc/sof/ipc3.c
index dff5feaad3703605926280884909e9fbcda9b883..ba81a6c490e942122fd05c792006147972f2b530 100644 (file)
--- a/sound/soc/sof/ipc3.c
+++ b/sound/soc/sof/ipc3.c
@@ -1037,6 +1037,23 @@ static void sof_ipc3_rx_msg(struct snd_sof_dev *sdev)
        ipc3_log_header(sdev->dev, "ipc rx done", hdr.cmd);
 }
 
+static int sof_ipc3_set_core_state(struct snd_sof_dev *sdev, int core_idx, bool on)
+{
+       struct sof_ipc_pm_core_config core_cfg = {
+               .hdr.size = sizeof(core_cfg),
+               .hdr.cmd = SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_CORE_ENABLE,
+       };
+       struct sof_ipc_reply reply;
+
+       if (on)
+               core_cfg.enable_mask = sdev->enabled_cores_mask | BIT(core_idx);
+       else
+               core_cfg.enable_mask = sdev->enabled_cores_mask & ~BIT(core_idx);
+
+       return sof_ipc3_tx_msg(sdev, &core_cfg, sizeof(core_cfg),
+                              &reply, sizeof(reply), false);
+}
+
 static int sof_ipc3_ctx_ipc(struct snd_sof_dev *sdev, int cmd)
 {
        struct sof_ipc_pm_ctx pm_ctx = {
@@ -1063,6 +1080,7 @@ static int sof_ipc3_ctx_restore(struct snd_sof_dev *sdev)
 static const struct sof_ipc_pm_ops ipc3_pm_ops = {
        .ctx_save = sof_ipc3_ctx_save,
        .ctx_restore = sof_ipc3_ctx_restore,
+       .set_core_state = sof_ipc3_set_core_state,
 };
 
 const struct sof_ipc_ops ipc3_ops = {