drivers/gpu/drm/amd/amdgpu/ta_xgmi_if.h

   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
  31 enum 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 /**********************************************************/;
  42 enum ta_xgmi_connected_nodes {
  43         TA_XGMI__MAX_CONNECTED_NODES                    = 64
  44 };
  45
  46 enum 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
  60 enum 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 /**********************************************************/
  72 struct 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
  79 struct ta_xgmi_peer_link_info {
  80         uint64_t                                node_id;
  81         uint8_t                                 num_links;
  82 };
  83
  84 struct ta_xgmi_cmd_initialize_output {
  85         uint32_t        status;
  86 };
  87
  88 struct ta_xgmi_cmd_get_node_id_output {
  89         uint64_t        node_id;
  90 };
  91
  92 struct ta_xgmi_cmd_get_hive_id_output {
  93         uint64_t        hive_id;
  94 };
  95
  96 struct 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
 101 struct 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
 106 struct 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
 111 struct 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 */
 118 union 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 */
 124 union 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
 133 struct 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