cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

ta_xgmi_if.h (4649B)

      1/*
      2 * Copyright 2018 Advanced Micro Devices, Inc.
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice shall be included in
     12 * all copies or substantial portions of the Software.
     13 *
     14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     20 * OTHER DEALINGS IN THE SOFTWARE.
     21 *
     22 */
     23
     24#ifndef _TA_XGMI_IF_H
     25#define _TA_XGMI_IF_H
     26
     27/* Responses have bit 31 set */
     28#define RSP_ID_MASK (1U << 31)
     29#define RSP_ID(cmdId) (((uint32_t)(cmdId)) | RSP_ID_MASK)
     30
     31enum ta_command_xgmi {
     32	TA_COMMAND_XGMI__INITIALIZE			= 0x00,
     33	TA_COMMAND_XGMI__GET_NODE_ID			= 0x01,
     34	TA_COMMAND_XGMI__GET_HIVE_ID			= 0x02,
     35	TA_COMMAND_XGMI__GET_GET_TOPOLOGY_INFO		= 0x03,
     36	TA_COMMAND_XGMI__SET_TOPOLOGY_INFO		= 0x04,
     37	TA_COMMAND_XGMI__GET_PEER_LINKS			= 0x0B
     38};
     39
     40/* XGMI related enumerations */
     41/**********************************************************/;
     42enum ta_xgmi_connected_nodes {
     43	TA_XGMI__MAX_CONNECTED_NODES			= 64
     44};
     45
     46enum ta_xgmi_status {
     47	TA_XGMI_STATUS__SUCCESS				= 0x00,
     48	TA_XGMI_STATUS__GENERIC_FAILURE			= 0x01,
     49	TA_XGMI_STATUS__NULL_POINTER			= 0x02,
     50	TA_XGMI_STATUS__INVALID_PARAMETER		= 0x03,
     51	TA_XGMI_STATUS__NOT_INITIALIZED			= 0x04,
     52	TA_XGMI_STATUS__INVALID_NODE_NUM		= 0x05,
     53	TA_XGMI_STATUS__INVALID_NODE_ID			= 0x06,
     54	TA_XGMI_STATUS__INVALID_TOPOLOGY		= 0x07,
     55	TA_XGMI_STATUS__FAILED_ID_GEN			= 0x08,
     56	TA_XGMI_STATUS__FAILED_TOPOLOGY_INIT		= 0x09,
     57	TA_XGMI_STATUS__SET_SHARING_ERROR		= 0x0A
     58};
     59
     60enum ta_xgmi_assigned_sdma_engine {
     61	TA_XGMI_ASSIGNED_SDMA_ENGINE__NOT_ASSIGNED	= -1,
     62	TA_XGMI_ASSIGNED_SDMA_ENGINE__SDMA0		= 0,
     63	TA_XGMI_ASSIGNED_SDMA_ENGINE__SDMA1		= 1,
     64	TA_XGMI_ASSIGNED_SDMA_ENGINE__SDMA2		= 2,
     65	TA_XGMI_ASSIGNED_SDMA_ENGINE__SDMA3		= 3,
     66	TA_XGMI_ASSIGNED_SDMA_ENGINE__SDMA4		= 4,
     67	TA_XGMI_ASSIGNED_SDMA_ENGINE__SDMA5		= 5
     68};
     69
     70/* input/output structures for XGMI commands */
     71/**********************************************************/
     72struct ta_xgmi_node_info {
     73	uint64_t				node_id;
     74	uint8_t					num_hops;
     75	uint8_t					is_sharing_enabled;
     76	enum ta_xgmi_assigned_sdma_engine	sdma_engine;
     77};
     78
     79struct ta_xgmi_peer_link_info {
     80	uint64_t				node_id;
     81	uint8_t					num_links;
     82};
     83
     84struct ta_xgmi_cmd_initialize_output {
     85	uint32_t	status;
     86};
     87
     88struct ta_xgmi_cmd_get_node_id_output {
     89	uint64_t	node_id;
     90};
     91
     92struct ta_xgmi_cmd_get_hive_id_output {
     93	uint64_t	hive_id;
     94};
     95
     96struct ta_xgmi_cmd_get_topology_info_input {
     97	uint32_t			num_nodes;
     98	struct ta_xgmi_node_info	nodes[TA_XGMI__MAX_CONNECTED_NODES];
     99};
    100
    101struct ta_xgmi_cmd_get_topology_info_output {
    102	uint32_t			num_nodes;
    103	struct ta_xgmi_node_info	nodes[TA_XGMI__MAX_CONNECTED_NODES];
    104};
    105
    106struct ta_xgmi_cmd_get_peer_link_info_output {
    107	uint32_t			num_nodes;
    108	struct ta_xgmi_peer_link_info	nodes[TA_XGMI__MAX_CONNECTED_NODES];
    109};
    110
    111struct ta_xgmi_cmd_set_topology_info_input {
    112	uint32_t			num_nodes;
    113	struct ta_xgmi_node_info	nodes[TA_XGMI__MAX_CONNECTED_NODES];
    114};
    115
    116/**********************************************************/
    117/* Common input structure for XGMI callbacks */
    118union ta_xgmi_cmd_input {
    119	struct ta_xgmi_cmd_get_topology_info_input	get_topology_info;
    120	struct ta_xgmi_cmd_set_topology_info_input	set_topology_info;
    121};
    122
    123/* Common output structure for XGMI callbacks */
    124union ta_xgmi_cmd_output {
    125	struct ta_xgmi_cmd_initialize_output		initialize;
    126	struct ta_xgmi_cmd_get_node_id_output		get_node_id;
    127	struct ta_xgmi_cmd_get_hive_id_output		get_hive_id;
    128	struct ta_xgmi_cmd_get_topology_info_output	get_topology_info;
    129	struct ta_xgmi_cmd_get_peer_link_info_output	get_link_info;
    130};
    131/**********************************************************/
    132
    133struct ta_xgmi_shared_memory {
    134	uint32_t			cmd_id;
    135	uint32_t			resp_id;
    136	enum ta_xgmi_status		xgmi_status;
    137	uint8_t				flag_extend_link_record;
    138	uint8_t				reserved0[3];
    139	union ta_xgmi_cmd_input		xgmi_in_message;
    140	union ta_xgmi_cmd_output	xgmi_out_message;
    141};
    142
    143#endif   //_TA_XGMI_IF_H