Merge "msm: ipa: Support hardware accelerated DIAG over qdss"

/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * Copyright (c) 2020, The Linux Foundation. All rights reserved.

 */

#ifndef _IPA_QDSS_H_

#define _IPA_QDSS_H_

#include <linux/ipa.h>

/**

 * enum ipa_qdss_notify - these are the only return items

 * @IPA_QDSS_SUCCESS: will be returned as it is for both conn

 *						and disconn

 * @IPA_QDSS_PIPE_CONN_FAILURE: will be returned as negative value

 * @IPA_QDSS_PIPE_DISCONN_FAILURE: will be returned as negative value

 */

enum ipa_qdss_notify {

	IPA_QDSS_SUCCESS,

	IPA_QDSS_PIPE_CONN_FAILURE,

	IPA_QDSS_PIPE_DISCONN_FAILURE,

};

/**

 * struct  ipa_qdss_conn_in_params - QDSS -> IPA TX configuration

 * @data_fifo_base_addr: Base address of the data FIFO used by BAM

 * @data_fifo_size: Size of the data FIFO

 * @desc_fifo_base_addr: Base address of the descriptor FIFO by BAM

 * @desc_fifo_size: Should be configured to 1 by QDSS

 * @bam_p_evt_dest_addr: equivalent to event_ring_doorbell_pa

 *			physical address of the doorbell that IPA uC

 *			will update the headpointer of the event ring.

 *			QDSS should send BAM_P_EVNT_REG address in this var

 *			Configured with the GSI Doorbell Address.

 *			GSI sends Update RP by doing a write to this address

 * @bam_p_evt_threshold: Threshold level of how many bytes consumed

 * @override_eot: if override EOT==1, it doesn't check the EOT bit in

 *			the descriptor

 */

struct ipa_qdss_conn_in_params {

	phys_addr_t  data_fifo_base_addr;

	u32  data_fifo_size;

	phys_addr_t desc_fifo_base_addr;

	u32 desc_fifo_size;

	phys_addr_t  bam_p_evt_dest_addr;

	u32 bam_p_evt_threshold;

	u32 override_eot;

};

/**

 * struct  ipa_qdss_conn_out_params - information provided

 *				to QDSS driver

 * @rx_db_pa: physical address of IPA doorbell for RX (QDSS->IPA transactions)

 *		QDSS to take this address and assign it to BAM_P_EVENT_DEST_ADDR

 */

struct ipa_qdss_conn_out_params {

	phys_addr_t ipa_rx_db_pa;

};

#if defined CONFIG_IPA3

/**

 * ipa_qdss_conn_pipes - Client should call this

 * function to connect QDSS -> IPA pipe

 *

 * @in: [in] input parameters from client

 * @out: [out] output params to client

 *

 * Note: Should not be called from atomic context

 *

 * @Return 0 on success, negative on failure

 */

int ipa_qdss_conn_pipes(struct ipa_qdss_conn_in_params *in,

	struct ipa_qdss_conn_out_params *out);

/**

 * ipa_qdss_disconn_pipes() - Client should call this

 *		function to disconnect pipes

 *

 * Note: Should not be called from atomic context

 *

 * Returns: 0 on success, negative on failure

 */

int ipa_qdss_disconn_pipes(void);

#else /* CONFIG_IPA3 */

static inline int ipa_qdss_conn_pipes(struct ipa_qdss_conn_in_params *in,

	struct ipa_qdss_conn_out_params *out)

{

	return -IPA_QDSS_PIPE_CONN_FAILURE;

}

static inline int ipa_qdss_disconn_pipes(void)

{

	return -IPA_QDSS_PIPE_DISCONN_FAILURE;

}

#endif /* CONFIG_IPA3 */

#endif /* _IPA_QDSS_H_ */

#define IPA_CLIENT_MHI_PRIME_DPL_PROD IPA_CLIENT_MHI_PRIME_DPL_PROD

#define IPA_CLIENT_AQC_ETHERNET_PROD IPA_CLIENT_AQC_ETHERNET_PROD

#define IPA_CLIENT_AQC_ETHERNET_CONS IPA_CLIENT_AQC_ETHERNET_CONS

#define IPA_CLIENT_MHI_QDSS_CONS IPA_CLIENT_MHI_QDSS_CONS

#define IPA_CLIENT_QDSS_PROD IPA_CLIENT_QDSS_PROD

#define IPA_CLIENT_IS_APPS_CONS(client) \

	((client) == IPA_CLIENT_APPS_LAN_CONS || \