linux_kernel/drivers/net/wireless/intel/iwlwifi/iwl-context-info.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) 2017 Intel Deutschland GmbH
 *
 * 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) 2017 Intel Deutschland GmbH
 * 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_h__
#define __iwl_context_info_file_h__

/* maximmum number of DRAM map entries supported by FW */
#define IWL_MAX_DRAM_ENTRY	64
#define CSR_CTXT_INFO_BA	0x40

/**
 * enum iwl_context_info_flags - Context information control flags
 * @IWL_CTXT_INFO_AUTO_FUNC_INIT: If set, FW will not wait before interrupting
 *	the init done for driver command that configures several system modes
 * @IWL_CTXT_INFO_EARLY_DEBUG: enable early debug
 * @IWL_CTXT_INFO_ENABLE_CDMP: enable core dump
 * @IWL_CTXT_INFO_RB_SIZE_4K: Use 4K RB size (the default is 2K)
 * @IWL_CTXT_INFO_RB_CB_SIZE_POS: position of the RBD Cyclic Buffer Size
 *	exponent, the actual size is 2**value, valid sizes are 8-2048.
 *	The value is four bits long. Maximum valid exponent is 12
 * @IWL_CTXT_INFO_TFD_FORMAT_LONG: use long TFD Format (the
 *	default is short format - not supported by the driver)
 */
enum iwl_context_info_flags {
	IWL_CTXT_INFO_AUTO_FUNC_INIT	= BIT(0),
	IWL_CTXT_INFO_EARLY_DEBUG	= BIT(1),
	IWL_CTXT_INFO_ENABLE_CDMP	= BIT(2),
	IWL_CTXT_INFO_RB_SIZE_4K	= BIT(3),
	IWL_CTXT_INFO_RB_CB_SIZE_POS	= 4,
	IWL_CTXT_INFO_TFD_FORMAT_LONG	= BIT(8),
};

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

/*
 * struct iwl_context_info_control - version structure
 * @control_flags: context information flags see &enum iwl_context_info_flags
 */
struct iwl_context_info_control {
	__le32 control_flags;
	__le32 reserved;
} __packed;

/*
 * struct iwl_context_info_dram - images DRAM map
 * each entry in the map represents a DRAM chunk of up to 32 KB
 * @umac_img: UMAC image DRAM map
 * @lmac_img: LMAC image DRAM map
 * @virtual_img: paged image DRAM map
 */
struct iwl_context_info_dram {
	__le64 umac_img[IWL_MAX_DRAM_ENTRY];
	__le64 lmac_img[IWL_MAX_DRAM_ENTRY];
	__le64 virtual_img[IWL_MAX_DRAM_ENTRY];
} __packed;

/*
 * struct iwl_context_info_rbd_cfg - RBDs configuration
 * @free_rbd_addr: default queue free RB CB base address
 * @used_rbd_addr: default queue used RB CB base address
 * @status_wr_ptr: default queue used RB status write pointer
 */
struct iwl_context_info_rbd_cfg {
	__le64 free_rbd_addr;
	__le64 used_rbd_addr;
	__le64 status_wr_ptr;
} __packed;

/*
 * struct iwl_context_info_hcmd_cfg  - command queue configuration
 * @cmd_queue_addr: address of command queue
 * @cmd_queue_size: number of entries
 */
struct iwl_context_info_hcmd_cfg {
	__le64 cmd_queue_addr;
	u8 cmd_queue_size;
	u8 reserved[7];
} __packed;

/*
 * struct iwl_context_info_dump_cfg - Core Dump configuration
 * @core_dump_addr: core dump (debug DRAM address) start address
 * @core_dump_size: size, in DWs
 */
struct iwl_context_info_dump_cfg {
	__le64 core_dump_addr;
	__le32 core_dump_size;
	__le32 reserved;
} __packed;

/*
 * struct iwl_context_info_pnvm_cfg - platform NVM data configuration
 * @platform_nvm_addr: Platform NVM data start address
 * @platform_nvm_size: size in DWs
 */
struct iwl_context_info_pnvm_cfg {
	__le64 platform_nvm_addr;
	__le32 platform_nvm_size;
	__le32 reserved;
} __packed;

/*
 * struct iwl_context_info_early_dbg_cfg - early debug configuration for
 *	dumping DRAM addresses
 * @early_debug_addr: early debug start address
 * @early_debug_size: size in DWs
 */
struct iwl_context_info_early_dbg_cfg {
	__le64 early_debug_addr;
	__le32 early_debug_size;
	__le32 reserved;
} __packed;

/*
 * struct iwl_context_info - device INIT configuration
 * @version: version information of context info and HW
 * @control: control flags of FH configurations
 * @rbd_cfg: default RX queue configuration
 * @hcmd_cfg: command queue configuration
 * @dump_cfg: core dump data
 * @edbg_cfg: early debug configuration
 * @pnvm_cfg: platform nvm configuration
 * @dram: firmware image addresses in DRAM
 */
struct iwl_context_info {
	struct iwl_context_info_version version;
	struct iwl_context_info_control control;
	__le64 reserved0;
	struct iwl_context_info_rbd_cfg rbd_cfg;
	struct iwl_context_info_hcmd_cfg hcmd_cfg;
	__le32 reserved1[4];
	struct iwl_context_info_dump_cfg dump_cfg;
	struct iwl_context_info_early_dbg_cfg edbg_cfg;
	struct iwl_context_info_pnvm_cfg pnvm_cfg;
	__le32 reserved2[16];
	struct iwl_context_info_dram dram;
	__le32 reserved3[16];
} __packed;

int iwl_pcie_ctxt_info_init(struct iwl_trans *trans, const struct fw_img *fw);
void iwl_pcie_ctxt_info_free(struct iwl_trans *trans);
void iwl_pcie_ctxt_info_free_paging(struct iwl_trans *trans);

#endif /* __iwl_context_info_file_h__ */