linux_kernel/drivers/net/wireless/intel/iwlwifi/iwl-context-info-gen3.h

/******************************************************************************
 *
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2018 Intel Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * BSD LICENSE
 *
 * Copyright(c) 2018 Intel Corporation
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  * Neither the name Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *****************************************************************************/
#ifndef __iwl_context_info_file_gen3_h__
#define __iwl_context_info_file_gen3_h__

#include "iwl-context-info.h"

#define CSR_CTXT_INFO_BOOT_CTRL         0x0
#define CSR_CTXT_INFO_ADDR              0x118
#define CSR_IML_DATA_ADDR               0x120
#define CSR_IML_SIZE_ADDR               0x128
#define CSR_IML_RESP_ADDR               0x12c

/* Set bit for enabling automatic function boot */
#define CSR_AUTO_FUNC_BOOT_ENA          BIT(1)
/* Set bit for initiating function boot */
#define CSR_AUTO_FUNC_INIT              BIT(7)

/**
 * enum iwl_prph_scratch_mtr_format - tfd size configuration
 * @IWL_PRPH_MTR_FORMAT_16B: 16 bit tfd
 * @IWL_PRPH_MTR_FORMAT_32B: 32 bit tfd
 * @IWL_PRPH_MTR_FORMAT_64B: 64 bit tfd
 * @IWL_PRPH_MTR_FORMAT_256B: 256 bit tfd
 */
enum iwl_prph_scratch_mtr_format {
	IWL_PRPH_MTR_FORMAT_16B = 0x0,
	IWL_PRPH_MTR_FORMAT_32B = 0x40000,
	IWL_PRPH_MTR_FORMAT_64B = 0x80000,
	IWL_PRPH_MTR_FORMAT_256B = 0xC0000,
};

/**
 * enum iwl_prph_scratch_flags - PRPH scratch control flags
 * @IWL_PRPH_SCRATCH_EARLY_DEBUG_EN: enable early debug conf
 * @IWL_PRPH_SCRATCH_EDBG_DEST_DRAM: use DRAM, with size allocated
 *	in hwm config.
 * @IWL_PRPH_SCRATCH_EDBG_DEST_INTERNAL: use buffer on SRAM
 * @IWL_PRPH_SCRATCH_EDBG_DEST_ST_ARBITER: use st arbiter, mainly for
 *	multicomm.
 * @IWL_PRPH_SCRATCH_EDBG_DEST_TB22DTF: route debug data to SoC HW
 * @IWL_PRPH_SCTATCH_RB_SIZE_4K: Use 4K RB size (the default is 2K)
 * @IWL_PRPH_SCRATCH_MTR_MODE: format used for completion - 0: for
 *	completion descriptor, 1 for responses (legacy)
 * @IWL_PRPH_SCRATCH_MTR_FORMAT: a mask for the size of the tfd.
 *	There are 4 optional values: 0: 16 bit, 1: 32 bit, 2: 64 bit,
 *	3: 256 bit.
 */
enum iwl_prph_scratch_flags {
	IWL_PRPH_SCRATCH_EARLY_DEBUG_EN		= BIT(4),
	IWL_PRPH_SCRATCH_EDBG_DEST_DRAM		= BIT(8),
	IWL_PRPH_SCRATCH_EDBG_DEST_INTERNAL	= BIT(9),
	IWL_PRPH_SCRATCH_EDBG_DEST_ST_ARBITER	= BIT(10),
	IWL_PRPH_SCRATCH_EDBG_DEST_TB22DTF	= BIT(11),
	IWL_PRPH_SCRATCH_RB_SIZE_4K		= BIT(16),
	IWL_PRPH_SCRATCH_MTR_MODE		= BIT(17),
	IWL_PRPH_SCRATCH_MTR_FORMAT		= BIT(18) | BIT(19),
};

/*
 * struct iwl_prph_scratch_version - version structure
 * @mac_id: SKU and revision id
 * @version: prph scratch information version id
 * @size: the size of the context information in DWs
 * @reserved: reserved
 */
struct iwl_prph_scratch_version {
	__le16 mac_id;
	__le16 version;
	__le16 size;
	__le16 reserved;
} __packed; /* PERIPH_SCRATCH_VERSION_S */

/*
 * struct iwl_prph_scratch_control - control structure
 * @control_flags: context information flags see &enum iwl_prph_scratch_flags
 * @reserved: reserved
 */
struct iwl_prph_scratch_control {
	__le32 control_flags;
	__le32 reserved;
} __packed; /* PERIPH_SCRATCH_CONTROL_S */

/*
 * struct iwl_prph_scratch_ror_cfg - ror config
 * @ror_base_addr: ror start address
 * @ror_size: ror size in DWs
 * @reserved: reserved
 */
struct iwl_prph_scratch_ror_cfg {
	__le64 ror_base_addr;
	__le32 ror_size;
	__le32 reserved;
} __packed; /* PERIPH_SCRATCH_ROR_CFG_S */

/*
 * struct iwl_prph_scratch_hwm_cfg - hwm config
 * @hwm_base_addr: hwm start address
 * @hwm_size: hwm size in DWs
 * @reserved: reserved
 */
struct iwl_prph_scratch_hwm_cfg {
	__le64 hwm_base_addr;
	__le32 hwm_size;
	__le32 reserved;
} __packed; /* PERIPH_SCRATCH_HWM_CFG_S */

/*
 * struct iwl_prph_scratch_rbd_cfg - RBDs configuration
 * @free_rbd_addr: default queue free RB CB base address
 * @reserved: reserved
 */
struct iwl_prph_scratch_rbd_cfg {
	__le64 free_rbd_addr;
	__le32 reserved;
} __packed; /* PERIPH_SCRATCH_RBD_CFG_S */

/*
 * struct iwl_prph_scratch_ctrl_cfg - prph scratch ctrl and config
 * @version: version information of context info and HW
 * @control: control flags of FH configurations
 * @ror_cfg: ror configuration
 * @hwm_cfg: hwm configuration
 * @rbd_cfg: default RX queue configuration
 */
struct iwl_prph_scratch_ctrl_cfg {
	struct iwl_prph_scratch_version version;
	struct iwl_prph_scratch_control control;
	struct iwl_prph_scratch_ror_cfg ror_cfg;
	struct iwl_prph_scratch_hwm_cfg hwm_cfg;
	struct iwl_prph_scratch_rbd_cfg rbd_cfg;
} __packed; /* PERIPH_SCRATCH_CTRL_CFG_S */

/*
 * struct iwl_prph_scratch - peripheral scratch mapping
 * @ctrl_cfg: control and configuration of prph scratch
 * @dram: firmware images addresses in DRAM
 * @reserved: reserved
 */
struct iwl_prph_scratch {
	struct iwl_prph_scratch_ctrl_cfg ctrl_cfg;
	__le32 reserved[16];
	struct iwl_context_info_dram dram;
} __packed; /* PERIPH_SCRATCH_S */

/*
 * struct iwl_prph_info - peripheral information
 * @boot_stage_mirror: reflects the value in the Boot Stage CSR register
 * @ipc_status_mirror: reflects the value in the IPC Status CSR register
 * @sleep_notif: indicates the peripheral sleep status
 * @reserved: reserved
 */
struct iwl_prph_info {
	__le32 boot_stage_mirror;
	__le32 ipc_status_mirror;
	__le32 sleep_notif;
	__le32 reserved;
} __packed; /* PERIPH_INFO_S */

/*
 * struct iwl_context_info_gen3 - device INIT configuration
 * @version: version of the context information
 * @size: size of context information in DWs
 * @config: context in which the peripheral would execute - a subset of
 *	capability csr register published by the peripheral
 * @prph_info_base_addr: the peripheral information structure start address
 * @cr_head_idx_arr_base_addr: the completion ring head index array
 *	start address
 * @tr_tail_idx_arr_base_addr: the transfer ring tail index array
 *	start address
 * @cr_tail_idx_arr_base_addr: the completion ring tail index array
 *	start address
 * @tr_head_idx_arr_base_addr: the transfer ring head index array
 *	start address
 * @cr_idx_arr_size: number of entries in the completion ring index array
 * @tr_idx_arr_size: number of entries in the transfer ring index array
 * @mtr_base_addr: the message transfer ring start address
 * @mcr_base_addr: the message completion ring start address
 * @mtr_size: number of entries which the message transfer ring can hold
 * @mcr_size: number of entries which the message completion ring can hold
 * @mtr_doorbell_vec: the doorbell vector associated with the message
 *	transfer ring
 * @mcr_doorbell_vec: the doorbell vector associated with the message
 *	completion ring
 * @mtr_msi_vec: the MSI which shall be generated by the peripheral after
 *	completing a transfer descriptor in the message transfer ring
 * @mcr_msi_vec: the MSI which shall be generated by the peripheral after
 *	completing a completion descriptor in the message completion ring
 * @mtr_opt_header_size: the size of the optional header in the transfer
 *	descriptor associated with the message transfer ring in DWs
 * @mtr_opt_footer_size: the size of the optional footer in the transfer
 *	descriptor associated with the message transfer ring in DWs
 * @mcr_opt_header_size: the size of the optional header in the completion
 *	descriptor associated with the message completion ring in DWs
 * @mcr_opt_footer_size: the size of the optional footer in the completion
 *	descriptor associated with the message completion ring in DWs
 * @msg_rings_ctrl_flags: message rings control flags
 * @prph_info_msi_vec: the MSI which shall be generated by the peripheral
 *	after updating the Peripheral Information structure
 * @prph_scratch_base_addr: the peripheral scratch structure start address
 * @prph_scratch_size: the size of the peripheral scratch structure in DWs
 * @reserved: reserved
 */
struct iwl_context_info_gen3 {
	__le16 version;
	__le16 size;
	__le32 config;
	__le64 prph_info_base_addr;
	__le64 cr_head_idx_arr_base_addr;
	__le64 tr_tail_idx_arr_base_addr;
	__le64 cr_tail_idx_arr_base_addr;
	__le64 tr_head_idx_arr_base_addr;
	__le16 cr_idx_arr_size;
	__le16 tr_idx_arr_size;
	__le64 mtr_base_addr;
	__le64 mcr_base_addr;
	__le16 mtr_size;
	__le16 mcr_size;
	__le16 mtr_doorbell_vec;
	__le16 mcr_doorbell_vec;
	__le16 mtr_msi_vec;
	__le16 mcr_msi_vec;
	u8 mtr_opt_header_size;
	u8 mtr_opt_footer_size;
	u8 mcr_opt_header_size;
	u8 mcr_opt_footer_size;
	__le16 msg_rings_ctrl_flags;
	__le16 prph_info_msi_vec;
	__le64 prph_scratch_base_addr;
	__le32 prph_scratch_size;
	__le32 reserved;
} __packed; /* IPC_CONTEXT_INFO_S */

int iwl_pcie_ctxt_info_gen3_init(struct iwl_trans *trans,
				 const struct fw_img *fw);
void iwl_pcie_ctxt_info_gen3_free(struct iwl_trans *trans);

#endif /* __iwl_context_info_file_gen3_h__ */