| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Google Whitechapel AoC Firmware loading support |
| * |
| * Copyright (c) 2019 Google LLC |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/firmware.h> |
| |
| #define AOC_FIRMWARE_OFFSET_INVALID 0xffffffff |
| |
| #define AOC_AUTH_HEADER_SIZE 4096 |
| |
| struct sysmmu_entry { |
| uint64_t value; |
| }; |
| |
| /* Access macros to decode SYSMMU entry */ |
| #define SYSMMU_VADDR(v) ((((v) >> 0) & 0x000FFFFF) << 12) |
| #define SYSMMU_PADDR(v) ((((v) >> 20) & 0x00FFFFFF) << 12) |
| #define SYSMMU_SIZE(v) ((((v) >> 44) & 0x000FFFFF) << 12) |
| |
| /* Dev builds bypass the UUID check on load */ |
| bool _aoc_fw_is_release(const struct firmware *fw); |
| |
| bool _aoc_fw_is_signed(const struct firmware *fw); |
| |
| bool _aoc_fw_is_compatible(const struct firmware *fw); |
| |
| bool _aoc_fw_is_valid(const struct firmware *fw); |
| |
| u32 _aoc_fw_bootloader_offset(const struct firmware *fw); |
| |
| u32 _aoc_fw_ipc_offset(const struct firmware *fw); |
| |
| /* Returns firmware version, or NULL on error */ |
| const char *_aoc_fw_version(const struct firmware *fw); |
| |
| bool _aoc_fw_commit(const struct firmware *fw, void *dest); |
| |
| uint16_t _aoc_fw_sysmmu_offset(const struct firmware *fw); |
| |
| uint16_t _aoc_fw_sysmmu_size(const struct firmware *fw); |
| |
| bool _aoc_fw_is_valid_sysmmu_size(const struct firmware *fw); |
| |
| struct sysmmu_entry *_aoc_fw_sysmmu_entry(const struct firmware *fw); |
| |
| struct aoc_image_config *_aoc_fw_image_config(const struct firmware *fw); |
| |
| u32 _aoc_fw_get_header_version(const struct firmware *fw); |
| |
| uint16_t _aoc_fw_bl_size(const struct firmware *fw); |
| |
| u32 *_aoc_fw_bl(const struct firmware *fw); |