Unverified Commit 469e87ca authored by Cezary Rojewski's avatar Cezary Rojewski Committed by Mark Brown
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ASoC: Intel: avs: Add power management requests 



Audio DSP supports low power states i.e.: transitions between D0 and D3
and D0-substates in form of D0i0 and D0i3. That process is a combination
of core and IPC operations. Here, Dx and D0ix IPC handlers are added.

Signed-off-by: default avatarAmadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: default avatarCezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220311153544.136854-9-cezary.rojewski@intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent f14a1c5a

sound/soc/intel/avs/messages.c

+44 −0
Original line number Diff line number Diff line
@@ -400,3 +400,47 @@ int avs_ipc_get_large_config(struct avs_dev *adev, u16 module_id, u8 instance_id 


	return 0;

}



int avs_ipc_set_dx(struct avs_dev *adev, u32 core_mask, bool powerup)

{

	union avs_module_msg msg = AVS_MODULE_REQUEST(SET_DX);

	struct avs_ipc_msg request;

	struct avs_dxstate_info dx;

	int ret;



	dx.core_mask = core_mask;

	dx.dx_mask = powerup ? core_mask : 0;

	request.header = msg.val;

	request.data = &dx;

	request.size = sizeof(dx);



	ret = avs_dsp_send_msg(adev, &request, NULL);

	if (ret)

		avs_ipc_err(adev, &request, "set dx", ret);



	return ret;

}



/*

 * avs_ipc_set_d0ix - Set power gating policy (entering D0IX substates)

 *

 * @enable_pg: Whether to enable or disable power gating

 * @streaming: Whether a stream is running when transitioning

 */

int avs_ipc_set_d0ix(struct avs_dev *adev, bool enable_pg, bool streaming)

{

	union avs_module_msg msg = AVS_MODULE_REQUEST(SET_D0IX);

	struct avs_ipc_msg request = {{0}};

	int ret;



	msg.ext.set_d0ix.wake = enable_pg;

	msg.ext.set_d0ix.streaming = streaming;



	request.header = msg.val;



	ret = avs_dsp_send_msg(adev, &request, NULL);

	if (ret)

		avs_ipc_err(adev, &request, "set d0ix", ret);



	return ret;

}

sound/soc/intel/avs/messages.h

+15 −0
Original line number Diff line number Diff line
@@ -97,6 +97,8 @@ enum avs_module_msg_type { 
	AVS_MOD_LARGE_CONFIG_SET = 4,

	AVS_MOD_BIND = 5,

	AVS_MOD_UNBIND = 6,

	AVS_MOD_SET_DX = 7,

	AVS_MOD_SET_D0IX = 8,

	AVS_MOD_DELETE_INSTANCE = 11,

};
@@ -133,6 +135,10 @@ union avs_module_msg { 
				u32 dst_queue:3;

				u32 src_queue:3;

			} bind_unbind;

			struct {

				u32 wake:1;

				u32 streaming:1;

			} set_d0ix;

		} ext;

	};

} __packed;
@@ -289,4 +295,13 @@ int avs_ipc_get_large_config(struct avs_dev *adev, u16 module_id, u8 instance_id 
			     u8 param_id, u8 *request_data, size_t request_size,

			     u8 **reply_data, size_t *reply_size);



/* DSP cores and domains power management messages */

struct avs_dxstate_info {

	u32 core_mask;	/* which cores are subject for power transition */

	u32 dx_mask;	/* bit[n]=1 core n goes to D0, bit[n]=0 it goes to D3 */

} __packed;



int avs_ipc_set_dx(struct avs_dev *adev, u32 core_mask, bool powerup);

int avs_ipc_set_d0ix(struct avs_dev *adev, bool enable_pg, bool streaming);



#endif /* __SOUND_SOC_INTEL_AVS_MSGS_H */