1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright © 2021 Intel Corporation 4 */ 5 6 #ifndef _GUC_ACTIONS_SLPC_ABI_H_ 7 #define _GUC_ACTIONS_SLPC_ABI_H_ 8 9 #include <linux/types.h> 10 11 /** 12 * DOC: SLPC SHARED DATA STRUCTURE 13 * 14 * +----+------+--------------------------------------------------------------+ 15 * | CL | Bytes| Description | 16 * +====+======+==============================================================+ 17 * | 1 | 0-3 | SHARED DATA SIZE | 18 * | +------+--------------------------------------------------------------+ 19 * | | 4-7 | GLOBAL STATE | 20 * | +------+--------------------------------------------------------------+ 21 * | | 8-11 | DISPLAY DATA ADDRESS | 22 * | +------+--------------------------------------------------------------+ 23 * | | 12:63| PADDING | 24 * +----+------+--------------------------------------------------------------+ 25 * | | 0:63 | PADDING(PLATFORM INFO) | 26 * +----+------+--------------------------------------------------------------+ 27 * | 3 | 0-3 | TASK STATE DATA | 28 * + +------+--------------------------------------------------------------+ 29 * | | 4:63 | PADDING | 30 * +----+------+--------------------------------------------------------------+ 31 * |4-21|0:1087| OVERRIDE PARAMS AND BIT FIELDS | 32 * +----+------+--------------------------------------------------------------+ 33 * | | | PADDING + EXTRA RESERVED PAGE | 34 * +----+------+--------------------------------------------------------------+ 35 */ 36 37 /* 38 * SLPC exposes certain parameters for global configuration by the host. 39 * These are referred to as override parameters, because in most cases 40 * the host will not need to modify the default values used by SLPC. 41 * SLPC remembers the default values which allows the host to easily restore 42 * them by simply unsetting the override. The host can set or unset override 43 * parameters during SLPC (re-)initialization using the SLPC Reset event. 44 * The host can also set or unset override parameters on the fly using the 45 * Parameter Set and Parameter Unset events 46 */ 47 48 #define SLPC_MAX_OVERRIDE_PARAMETERS 256 49 #define SLPC_OVERRIDE_BITFIELD_SIZE \ 50 (SLPC_MAX_OVERRIDE_PARAMETERS / 32) 51 52 #define SLPC_PAGE_SIZE_BYTES 4096 53 #define SLPC_CACHELINE_SIZE_BYTES 64 54 #define SLPC_SHARED_DATA_SIZE_BYTE_HEADER SLPC_CACHELINE_SIZE_BYTES 55 #define SLPC_SHARED_DATA_SIZE_BYTE_PLATFORM_INFO SLPC_CACHELINE_SIZE_BYTES 56 #define SLPC_SHARED_DATA_SIZE_BYTE_TASK_STATE SLPC_CACHELINE_SIZE_BYTES 57 #define SLPC_SHARED_DATA_MODE_DEFN_TABLE_SIZE SLPC_PAGE_SIZE_BYTES 58 #define SLPC_SHARED_DATA_SIZE_BYTE_MAX (2 * SLPC_PAGE_SIZE_BYTES) 59 60 /* 61 * Cacheline size aligned (Total size needed for 62 * SLPM_KMD_MAX_OVERRIDE_PARAMETERS=256 is 1088 bytes) 63 */ 64 #define SLPC_OVERRIDE_PARAMS_TOTAL_BYTES (((((SLPC_MAX_OVERRIDE_PARAMETERS * 4) \ 65 + ((SLPC_MAX_OVERRIDE_PARAMETERS / 32) * 4)) \ 66 + (SLPC_CACHELINE_SIZE_BYTES - 1)) / SLPC_CACHELINE_SIZE_BYTES) * \ 67 SLPC_CACHELINE_SIZE_BYTES) 68 69 #define SLPC_SHARED_DATA_SIZE_BYTE_OTHER (SLPC_SHARED_DATA_SIZE_BYTE_MAX - \ 70 (SLPC_SHARED_DATA_SIZE_BYTE_HEADER \ 71 + SLPC_SHARED_DATA_SIZE_BYTE_PLATFORM_INFO \ 72 + SLPC_SHARED_DATA_SIZE_BYTE_TASK_STATE \ 73 + SLPC_OVERRIDE_PARAMS_TOTAL_BYTES \ 74 + SLPC_SHARED_DATA_MODE_DEFN_TABLE_SIZE)) 75 76 enum slpc_task_enable { 77 SLPC_PARAM_TASK_DEFAULT = 0, 78 SLPC_PARAM_TASK_ENABLED, 79 SLPC_PARAM_TASK_DISABLED, 80 SLPC_PARAM_TASK_UNKNOWN 81 }; 82 83 enum slpc_global_state { 84 SLPC_GLOBAL_STATE_NOT_RUNNING = 0, 85 SLPC_GLOBAL_STATE_INITIALIZING = 1, 86 SLPC_GLOBAL_STATE_RESETTING = 2, 87 SLPC_GLOBAL_STATE_RUNNING = 3, 88 SLPC_GLOBAL_STATE_SHUTTING_DOWN = 4, 89 SLPC_GLOBAL_STATE_ERROR = 5 90 }; 91 92 enum slpc_param_id { 93 SLPC_PARAM_TASK_ENABLE_GTPERF = 0, 94 SLPC_PARAM_TASK_DISABLE_GTPERF = 1, 95 SLPC_PARAM_TASK_ENABLE_BALANCER = 2, 96 SLPC_PARAM_TASK_DISABLE_BALANCER = 3, 97 SLPC_PARAM_TASK_ENABLE_DCC = 4, 98 SLPC_PARAM_TASK_DISABLE_DCC = 5, 99 SLPC_PARAM_GLOBAL_MIN_GT_UNSLICE_FREQ_MHZ = 6, 100 SLPC_PARAM_GLOBAL_MAX_GT_UNSLICE_FREQ_MHZ = 7, 101 SLPC_PARAM_GLOBAL_MIN_GT_SLICE_FREQ_MHZ = 8, 102 SLPC_PARAM_GLOBAL_MAX_GT_SLICE_FREQ_MHZ = 9, 103 SLPC_PARAM_GTPERF_THRESHOLD_MAX_FPS = 10, 104 SLPC_PARAM_GLOBAL_DISABLE_GT_FREQ_MANAGEMENT = 11, 105 SLPC_PARAM_GTPERF_ENABLE_FRAMERATE_STALLING = 12, 106 SLPC_PARAM_GLOBAL_DISABLE_RC6_MODE_CHANGE = 13, 107 SLPC_PARAM_GLOBAL_OC_UNSLICE_FREQ_MHZ = 14, 108 SLPC_PARAM_GLOBAL_OC_SLICE_FREQ_MHZ = 15, 109 SLPC_PARAM_GLOBAL_ENABLE_IA_GT_BALANCING = 16, 110 SLPC_PARAM_GLOBAL_ENABLE_ADAPTIVE_BURST_TURBO = 17, 111 SLPC_PARAM_GLOBAL_ENABLE_EVAL_MODE = 18, 112 SLPC_PARAM_GLOBAL_ENABLE_BALANCER_IN_NON_GAMING_MODE = 19, 113 SLPC_PARAM_GLOBAL_RT_MODE_TURBO_FREQ_DELTA_MHZ = 20, 114 SLPC_PARAM_PWRGATE_RC_MODE = 21, 115 SLPC_PARAM_EDR_MODE_COMPUTE_TIMEOUT_MS = 22, 116 SLPC_PARAM_EDR_QOS_FREQ_MHZ = 23, 117 SLPC_PARAM_MEDIA_FF_RATIO_MODE = 24, 118 SLPC_PARAM_ENABLE_IA_FREQ_LIMITING = 25, 119 SLPC_PARAM_STRATEGIES = 26, 120 SLPC_PARAM_POWER_PROFILE = 27, 121 SLPC_PARAM_IGNORE_EFFICIENT_FREQUENCY = 28, 122 SLPC_MAX_PARAM = 32, 123 }; 124 125 enum slpc_media_ratio_mode { 126 SLPC_MEDIA_RATIO_MODE_DYNAMIC_CONTROL = 0, 127 SLPC_MEDIA_RATIO_MODE_FIXED_ONE_TO_ONE = 1, 128 SLPC_MEDIA_RATIO_MODE_FIXED_ONE_TO_TWO = 2, 129 }; 130 131 enum slpc_gucrc_mode { 132 SLPC_GUCRC_MODE_HW = 0, 133 SLPC_GUCRC_MODE_GUCRC_NO_RC6 = 1, 134 SLPC_GUCRC_MODE_GUCRC_STATIC_TIMEOUT = 2, 135 SLPC_GUCRC_MODE_GUCRC_DYNAMIC_HYSTERESIS = 3, 136 137 SLPC_GUCRC_MODE_MAX, 138 }; 139 140 enum slpc_event_id { 141 SLPC_EVENT_RESET = 0, 142 SLPC_EVENT_SHUTDOWN = 1, 143 SLPC_EVENT_PLATFORM_INFO_CHANGE = 2, 144 SLPC_EVENT_DISPLAY_MODE_CHANGE = 3, 145 SLPC_EVENT_FLIP_COMPLETE = 4, 146 SLPC_EVENT_QUERY_TASK_STATE = 5, 147 SLPC_EVENT_PARAMETER_SET = 6, 148 SLPC_EVENT_PARAMETER_UNSET = 7, 149 }; 150 151 struct slpc_task_state_data { 152 union { 153 u32 task_status_padding; 154 struct { 155 u32 status; 156 #define SLPC_GTPERF_TASK_ENABLED REG_BIT(0) 157 #define SLPC_DCC_TASK_ENABLED REG_BIT(11) 158 #define SLPC_IN_DCC REG_BIT(12) 159 #define SLPC_BALANCER_ENABLED REG_BIT(15) 160 #define SLPC_IBC_TASK_ENABLED REG_BIT(16) 161 #define SLPC_BALANCER_IA_LMT_ENABLED REG_BIT(17) 162 #define SLPC_BALANCER_IA_LMT_ACTIVE REG_BIT(18) 163 }; 164 }; 165 union { 166 u32 freq_padding; 167 struct { 168 #define SLPC_MAX_UNSLICE_FREQ_MASK REG_GENMASK(7, 0) 169 #define SLPC_MIN_UNSLICE_FREQ_MASK REG_GENMASK(15, 8) 170 #define SLPC_MAX_SLICE_FREQ_MASK REG_GENMASK(23, 16) 171 #define SLPC_MIN_SLICE_FREQ_MASK REG_GENMASK(31, 24) 172 u32 freq; 173 }; 174 }; 175 } __packed; 176 177 struct slpc_shared_data_header { 178 /* Total size in bytes of this shared buffer. */ 179 u32 size; 180 u32 global_state; 181 u32 display_data_addr; 182 } __packed; 183 184 struct slpc_override_params { 185 u32 bits[SLPC_OVERRIDE_BITFIELD_SIZE]; 186 u32 values[SLPC_MAX_OVERRIDE_PARAMETERS]; 187 } __packed; 188 189 struct slpc_shared_data { 190 struct slpc_shared_data_header header; 191 u8 shared_data_header_pad[SLPC_SHARED_DATA_SIZE_BYTE_HEADER - 192 sizeof(struct slpc_shared_data_header)]; 193 194 u8 platform_info_pad[SLPC_SHARED_DATA_SIZE_BYTE_PLATFORM_INFO]; 195 196 struct slpc_task_state_data task_state_data; 197 u8 task_state_data_pad[SLPC_SHARED_DATA_SIZE_BYTE_TASK_STATE - 198 sizeof(struct slpc_task_state_data)]; 199 200 struct slpc_override_params override_params; 201 u8 override_params_pad[SLPC_OVERRIDE_PARAMS_TOTAL_BYTES - 202 sizeof(struct slpc_override_params)]; 203 204 u8 shared_data_pad[SLPC_SHARED_DATA_SIZE_BYTE_OTHER]; 205 206 /* PAGE 2 (4096 bytes), mode based parameter will be removed soon */ 207 u8 reserved_mode_definition[4096]; 208 } __packed; 209 210 /** 211 * DOC: SLPC H2G MESSAGE FORMAT 212 * 213 * +---+-------+--------------------------------------------------------------+ 214 * | | Bits | Description | 215 * +===+=======+==============================================================+ 216 * | 0 | 31 | ORIGIN = GUC_HXG_ORIGIN_HOST_ | 217 * | +-------+--------------------------------------------------------------+ 218 * | | 30:28 | TYPE = GUC_HXG_TYPE_REQUEST_ | 219 * | +-------+--------------------------------------------------------------+ 220 * | | 27:16 | DATA0 = MBZ | 221 * | +-------+--------------------------------------------------------------+ 222 * | | 15:0 | ACTION = _`GUC_ACTION_HOST2GUC_PC_SLPM_REQUEST` = 0x3003 | 223 * +---+-------+--------------------------------------------------------------+ 224 * | 1 | 31:8 | **EVENT_ID** | 225 * + +-------+--------------------------------------------------------------+ 226 * | | 7:0 | **EVENT_ARGC** - number of data arguments | 227 * +---+-------+--------------------------------------------------------------+ 228 * | 2 | 31:0 | **EVENT_DATA1** | 229 * +---+-------+--------------------------------------------------------------+ 230 * |...| 31:0 | ... | 231 * +---+-------+--------------------------------------------------------------+ 232 * |2+n| 31:0 | **EVENT_DATAn** | 233 * +---+-------+--------------------------------------------------------------+ 234 */ 235 236 #define GUC_ACTION_HOST2GUC_PC_SLPC_REQUEST 0x3003 237 238 #define HOST2GUC_PC_SLPC_REQUEST_MSG_MIN_LEN \ 239 (GUC_HXG_REQUEST_MSG_MIN_LEN + 1u) 240 #define HOST2GUC_PC_SLPC_EVENT_MAX_INPUT_ARGS 9 241 #define HOST2GUC_PC_SLPC_REQUEST_MSG_MAX_LEN \ 242 (HOST2GUC_PC_SLPC_REQUEST_REQUEST_MSG_MIN_LEN + \ 243 HOST2GUC_PC_SLPC_EVENT_MAX_INPUT_ARGS) 244 #define HOST2GUC_PC_SLPC_REQUEST_MSG_0_MBZ GUC_HXG_REQUEST_MSG_0_DATA0 245 #define HOST2GUC_PC_SLPC_REQUEST_MSG_1_EVENT_ID (0xff << 8) 246 #define HOST2GUC_PC_SLPC_REQUEST_MSG_1_EVENT_ARGC (0xff << 0) 247 #define HOST2GUC_PC_SLPC_REQUEST_MSG_N_EVENT_DATA_N GUC_HXG_REQUEST_MSG_n_DATAn 248 249 #endif 250