/* * Copyright 2019 Advanced Micro Devices, Inc. * * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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. * * Authors: AMD * */ #ifndef _DMUB_GPINT_CMD_H_ #define _DMUB_GPINT_CMD_H_ #include "dmub_types.h" /** * The register format for sending a command via the GPINT. */ union dmub_gpint_data_register { struct { uint32_t param : 16; uint32_t command_code : 12; uint32_t status : 4; } bits; uint32_t all; }; /** * The shifts and masks below may alternatively be used to format and read * the command register bits. */ #define DMUB_GPINT_DATA_PARAM_MASK 0xFFFF #define DMUB_GPINT_DATA_PARAM_SHIFT 0 #define DMUB_GPINT_DATA_COMMAND_CODE_MASK 0xFFF #define DMUB_GPINT_DATA_COMMAND_CODE_SHIFT 16 #define DMUB_GPINT_DATA_STATUS_MASK 0xF #define DMUB_GPINT_DATA_STATUS_SHIFT 28 /* * Command IDs should be treated as stable ABI. * Do not reuse or modify IDs. */ enum dmub_gpint_command { DMUB_GPINT__INVALID_COMMAND = 0, DMUB_GPINT__GET_FW_VERSION = 1, DMUB_GPINT__STOP_FW = 2, DMUB_GPINT__GET_PSR_STATE = 7, }; /** * Command responses. */ #define DMUB_GPINT__STOP_FW_RESPONSE 0xDEADDEAD #endif /* _DMUB_GPINT_CMD_H_ */