IPC4 uses the SET_DX message to enable/disable cores managed by the DSP. The dx_state.core_mask indicates which core is going to change state, the dx_state.dx_mask is to power on (1) or off (0) the core. In the dx_mask only those bits (cores) checked which bit is set in the core_mask, other bits (cores) ignored.
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 --- include/sound/sof/ipc4/header.h | 8 ++++++++ sound/soc/sof/ipc4.c | 26 ++++++++++++++++++++++++++ 2 files changed, 34 insertions(+)
diff --git a/include/sound/sof/ipc4/header.h b/include/sound/sof/ipc4/header.h index b8b8e5b5e3e1..a795deacc2ea 100644 --- a/include/sound/sof/ipc4/header.h +++ b/include/sound/sof/ipc4/header.h @@ -385,6 +385,14 @@ struct sof_ipc4_fw_version { uint16_t build; } __packed;
+/* Payload data for SOF_IPC4_MOD_SET_DX */ +struct sof_ipc4_dx_state_info { + /* core(s) to apply the change */ + uint32_t core_mask; + /* core state: 0: put core_id to D3; 1: put core_id to D0 */ + uint32_t dx_mask; +} __packed __aligned(4); + /* Reply messages */
/* diff --git a/sound/soc/sof/ipc4.c b/sound/soc/sof/ipc4.c index 658802c86685..b2cb92745ec6 100644 --- a/sound/soc/sof/ipc4.c +++ b/sound/soc/sof/ipc4.c @@ -597,10 +597,36 @@ static void sof_ipc4_rx_msg(struct snd_sof_dev *sdev) } }
+static int sof_ipc4_set_core_state(struct snd_sof_dev *sdev, int core_idx, bool on) +{ + struct sof_ipc4_dx_state_info dx_state; + struct sof_ipc4_msg msg; + + dx_state.core_mask = BIT(core_idx); + if (on) + dx_state.dx_mask = BIT(core_idx); + else + dx_state.dx_mask = 0; + + msg.primary = SOF_IPC4_MSG_TYPE_SET(SOF_IPC4_MOD_SET_DX); + msg.primary |= SOF_IPC4_MSG_DIR(SOF_IPC4_MSG_REQUEST); + msg.primary |= SOF_IPC4_MSG_TARGET(SOF_IPC4_MODULE_MSG); + msg.extension = 0; + msg.data_ptr = &dx_state; + msg.data_size = sizeof(dx_state); + + return sof_ipc4_tx_msg(sdev, &msg, msg.data_size, NULL, 0, false); +} + +static const struct sof_ipc_pm_ops ipc4_pm_ops = { + .set_core_state = sof_ipc4_set_core_state, +}; + const struct sof_ipc_ops ipc4_ops = { .tx_msg = sof_ipc4_tx_msg, .rx_msg = sof_ipc4_rx_msg, .set_get_data = sof_ipc4_set_get_data, .get_reply = sof_ipc4_get_reply, + .pm = &ipc4_pm_ops, .fw_loader = &ipc4_loader_ops, };