linux_kernel/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode.h

/*
 * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#ifndef __NVKM_SECBOOT_LS_UCODE_H__
#define __NVKM_SECBOOT_LS_UCODE_H__

#include <core/os.h>
#include <core/subdev.h>
#include <subdev/secboot.h>


/**
 * struct ls_ucode_img_desc - descriptor of firmware image
 * @descriptor_size:		size of this descriptor
 * @image_size:			size of the whole image
 * @bootloader_start_offset:	start offset of the bootloader in ucode image
 * @bootloader_size:		size of the bootloader
 * @bootloader_imem_offset:	start off set of the bootloader in IMEM
 * @bootloader_entry_point:	entry point of the bootloader in IMEM
 * @app_start_offset:		start offset of the LS firmware
 * @app_size:			size of the LS firmware's code and data
 * @app_imem_offset:		offset of the app in IMEM
 * @app_imem_entry:		entry point of the app in IMEM
 * @app_dmem_offset:		offset of the data in DMEM
 * @app_resident_code_offset:	offset of app code from app_start_offset
 * @app_resident_code_size:	size of the code
 * @app_resident_data_offset:	offset of data from app_start_offset
 * @app_resident_data_size:	size of data
 *
 * A firmware image contains the code, data, and bootloader of a given LS
 * falcon in a single blob. This structure describes where everything is.
 *
 * This can be generated from a (bootloader, code, data) set if they have
 * been loaded separately, or come directly from a file.
 */
struct ls_ucode_img_desc {
	u32 descriptor_size;
	u32 image_size;
	u32 tools_version;
	u32 app_version;
	char date[64];
	u32 bootloader_start_offset;
	u32 bootloader_size;
	u32 bootloader_imem_offset;
	u32 bootloader_entry_point;
	u32 app_start_offset;
	u32 app_size;
	u32 app_imem_offset;
	u32 app_imem_entry;
	u32 app_dmem_offset;
	u32 app_resident_code_offset;
	u32 app_resident_code_size;
	u32 app_resident_data_offset;
	u32 app_resident_data_size;
	u32 nb_overlays;
	struct {u32 start; u32 size; } load_ovl[64];
	u32 compressed;
};

/**
 * struct ls_ucode_img - temporary storage for loaded LS firmwares
 * @node:		to link within lsf_ucode_mgr
 * @falcon_id:		ID of the falcon this LS firmware is for
 * @ucode_desc:		loaded or generated map of ucode_data
 * @ucode_data:		firmware payload (code and data)
 * @ucode_size:		size in bytes of data in ucode_data
 * @sig:		signature for this firmware
 * @sig:size:		size of the signature in bytes
 *
 * Preparing the WPR LS blob requires information about all the LS firmwares
 * (size, etc) to be known. This structure contains all the data of one LS
 * firmware.
 */
struct ls_ucode_img {
	struct list_head node;
	enum nvkm_secboot_falcon falcon_id;

	struct ls_ucode_img_desc ucode_desc;
	u8 *ucode_data;
	u32 ucode_size;

	u8 *sig;
	u32 sig_size;
};

/**
 * struct fw_bin_header - header of firmware files
 * @bin_magic:		always 0x3b1d14f0
 * @bin_ver:		version of the bin format
 * @bin_size:		entire image size including this header
 * @header_offset:	offset of the firmware/bootloader header in the file
 * @data_offset:	offset of the firmware/bootloader payload in the file
 * @data_size:		size of the payload
 *
 * This header is located at the beginning of the HS firmware and HS bootloader
 * files, to describe where the headers and data can be found.
 */
struct fw_bin_header {
	u32 bin_magic;
	u32 bin_ver;
	u32 bin_size;
	u32 header_offset;
	u32 data_offset;
	u32 data_size;
};

/**
 * struct fw_bl_desc - firmware bootloader descriptor
 * @start_tag:		starting tag of bootloader
 * @desc_dmem_load_off:	DMEM offset of flcn_bl_dmem_desc
 * @code_off:		offset of code section
 * @code_size:		size of code section
 * @data_off:		offset of data section
 * @data_size:		size of data section
 *
 * This structure is embedded in bootloader firmware files at to describe the
 * IMEM and DMEM layout expected by the bootloader.
 */
struct fw_bl_desc {
	u32 start_tag;
	u32 dmem_load_off;
	u32 code_off;
	u32 code_size;
	u32 data_off;
	u32 data_size;
};

int acr_ls_ucode_load_fecs(const struct nvkm_subdev *, struct ls_ucode_img *);
int acr_ls_ucode_load_gpccs(const struct nvkm_subdev *, struct ls_ucode_img *);


#endif