1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* 3 * Intel Speed Select Interface: OS to hardware Interface 4 * Copyright (c) 2019, Intel Corporation. 5 * All rights reserved. 6 * 7 * Author: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> 8 */ 9 10 #ifndef __ISST_IF_H 11 #define __ISST_IF_H 12 13 #include <linux/types.h> 14 15 /** 16 * struct isst_if_platform_info - Define platform information 17 * @api_version: Version of the firmware document, which this driver 18 * can communicate 19 * @driver_version: Driver version, which will help user to send right 20 * commands. Even if the firmware is capable, driver may 21 * not be ready 22 * @max_cmds_per_ioctl: Returns the maximum number of commands driver will 23 * accept in a single ioctl 24 * @mbox_supported: Support of mail box interface 25 * @mmio_supported: Support of mmio interface for core-power feature 26 * 27 * Used to return output of IOCTL ISST_IF_GET_PLATFORM_INFO. This 28 * information can be used by the user space, to get the driver, firmware 29 * support and also number of commands to send in a single IOCTL request. 30 */ 31 struct isst_if_platform_info { 32 __u16 api_version; 33 __u16 driver_version; 34 __u16 max_cmds_per_ioctl; 35 __u8 mbox_supported; 36 __u8 mmio_supported; 37 }; 38 39 /** 40 * struct isst_if_cpu_map - CPU mapping between logical and physical CPU 41 * @logical_cpu: Linux logical CPU number 42 * @physical_cpu: PUNIT CPU number 43 * 44 * Used to convert from Linux logical CPU to PUNIT CPU numbering scheme. 45 * The PUNIT CPU number is different than APIC ID based CPU numbering. 46 */ 47 struct isst_if_cpu_map { 48 __u32 logical_cpu; 49 __u32 physical_cpu; 50 }; 51 52 /** 53 * struct isst_if_cpu_maps - structure for CPU map IOCTL 54 * @cmd_count: Number of CPU mapping command in cpu_map[] 55 * @cpu_map[]: Holds one or more CPU map data structure 56 * 57 * This structure used with ioctl ISST_IF_GET_PHY_ID to send 58 * one or more CPU mapping commands. Here IOCTL return value indicates 59 * number of commands sent or error number if no commands have been sent. 60 */ 61 struct isst_if_cpu_maps { 62 __u32 cmd_count; 63 struct isst_if_cpu_map cpu_map[1]; 64 }; 65 66 /** 67 * struct isst_if_io_reg - Read write PUNIT IO register 68 * @read_write: Value 0: Read, 1: Write 69 * @logical_cpu: Logical CPU number to get target PCI device. 70 * @reg: PUNIT register offset 71 * @value: For write operation value to write and for 72 * read placeholder read value 73 * 74 * Structure to specify read/write data to PUNIT registers. 75 */ 76 struct isst_if_io_reg { 77 __u32 read_write; /* Read:0, Write:1 */ 78 __u32 logical_cpu; 79 __u32 reg; 80 __u32 value; 81 }; 82 83 /** 84 * struct isst_if_io_regs - structure for IO register commands 85 * @cmd_count: Number of io reg commands in io_reg[] 86 * @io_reg[]: Holds one or more io_reg command structure 87 * 88 * This structure used with ioctl ISST_IF_IO_CMD to send 89 * one or more read/write commands to PUNIT. Here IOCTL return value 90 * indicates number of requests sent or error number if no requests have 91 * been sent. 92 */ 93 struct isst_if_io_regs { 94 __u32 req_count; 95 struct isst_if_io_reg io_reg[1]; 96 }; 97 98 /** 99 * struct isst_if_mbox_cmd - Structure to define mail box command 100 * @logical_cpu: Logical CPU number to get target PCI device 101 * @parameter: Mailbox parameter value 102 * @req_data: Request data for the mailbox 103 * @resp_data: Response data for mailbox command response 104 * @command: Mailbox command value 105 * @sub_command: Mailbox sub command value 106 * @reserved: Unused, set to 0 107 * 108 * Structure to specify mailbox command to be sent to PUNIT. 109 */ 110 struct isst_if_mbox_cmd { 111 __u32 logical_cpu; 112 __u32 parameter; 113 __u32 req_data; 114 __u32 resp_data; 115 __u16 command; 116 __u16 sub_command; 117 __u32 reserved; 118 }; 119 120 /** 121 * struct isst_if_mbox_cmds - structure for mailbox commands 122 * @cmd_count: Number of mailbox commands in mbox_cmd[] 123 * @mbox_cmd[]: Holds one or more mbox commands 124 * 125 * This structure used with ioctl ISST_IF_MBOX_COMMAND to send 126 * one or more mailbox commands to PUNIT. Here IOCTL return value 127 * indicates number of commands sent or error number if no commands have 128 * been sent. 129 */ 130 struct isst_if_mbox_cmds { 131 __u32 cmd_count; 132 struct isst_if_mbox_cmd mbox_cmd[1]; 133 }; 134 135 /** 136 * struct isst_if_msr_cmd - Structure to define msr command 137 * @read_write: Value 0: Read, 1: Write 138 * @logical_cpu: Logical CPU number 139 * @msr: MSR number 140 * @data: For write operation, data to write, for read 141 * place holder 142 * 143 * Structure to specify MSR command related to PUNIT. 144 */ 145 struct isst_if_msr_cmd { 146 __u32 read_write; /* Read:0, Write:1 */ 147 __u32 logical_cpu; 148 __u64 msr; 149 __u64 data; 150 }; 151 152 /** 153 * struct isst_if_msr_cmds - structure for msr commands 154 * @cmd_count: Number of mailbox commands in msr_cmd[] 155 * @msr_cmd[]: Holds one or more msr commands 156 * 157 * This structure used with ioctl ISST_IF_MSR_COMMAND to send 158 * one or more MSR commands. IOCTL return value indicates number of 159 * commands sent or error number if no commands have been sent. 160 */ 161 struct isst_if_msr_cmds { 162 __u32 cmd_count; 163 struct isst_if_msr_cmd msr_cmd[1]; 164 }; 165 166 /** 167 * struct isst_core_power - Structure to get/set core_power feature 168 * @get_set: 0: Get, 1: Set 169 * @socket_id: Socket/package id 170 * @power_domain: Power Domain id 171 * @enable: Feature enable status 172 * @priority_type: Priority type for the feature (ordered/proportional) 173 * 174 * Structure to get/set core_power feature state using IOCTL 175 * ISST_IF_CORE_POWER_STATE. 176 */ 177 struct isst_core_power { 178 __u8 get_set; 179 __u8 socket_id; 180 __u8 power_domain_id; 181 __u8 enable; 182 __u8 supported; 183 __u8 priority_type; 184 }; 185 186 /** 187 * struct isst_clos_param - Structure to get/set clos praram 188 * @get_set: 0: Get, 1: Set 189 * @socket_id: Socket/package id 190 * @power_domain: Power Domain id 191 * clos: Clos ID for the parameters 192 * min_freq_mhz: Minimum frequency in MHz 193 * max_freq_mhz: Maximum frequency in MHz 194 * prop_prio: Proportional priority from 0-15 195 * 196 * Structure to get/set per clos property using IOCTL 197 * ISST_IF_CLOS_PARAM. 198 */ 199 struct isst_clos_param { 200 __u8 get_set; 201 __u8 socket_id; 202 __u8 power_domain_id; 203 __u8 clos; 204 __u16 min_freq_mhz; 205 __u16 max_freq_mhz; 206 __u8 prop_prio; 207 }; 208 209 /** 210 * struct isst_if_clos_assoc - Structure to assign clos to a CPU 211 * @socket_id: Socket/package id 212 * @power_domain: Power Domain id 213 * @logical_cpu: CPU number 214 * @clos: Clos ID to assign to the logical CPU 215 * 216 * Structure to get/set core_power feature. 217 */ 218 struct isst_if_clos_assoc { 219 __u8 socket_id; 220 __u8 power_domain_id; 221 __u16 logical_cpu; 222 __u16 clos; 223 }; 224 225 /** 226 * struct isst_if_clos_assoc_cmds - Structure to assign clos to CPUs 227 * @cmd_count: Number of cmds (cpus) in this request 228 * @get_set: Request is for get or set 229 * @punit_cpu_map: Set to 1 if the CPU number is punit numbering not 230 * Linux CPU number 231 * 232 * Structure used to get/set associate CPUs to clos using IOCTL 233 * ISST_IF_CLOS_ASSOC. 234 */ 235 struct isst_if_clos_assoc_cmds { 236 __u16 cmd_count; 237 __u16 get_set; 238 __u16 punit_cpu_map; 239 struct isst_if_clos_assoc assoc_info[1]; 240 }; 241 242 /** 243 * struct isst_tpmi_instance_count - Get number of TPMI instances per socket 244 * @socket_id: Socket/package id 245 * @count: Number of instances 246 * @valid_mask: Mask of instances as there can be holes 247 * 248 * Structure used to get TPMI instances information using 249 * IOCTL ISST_IF_COUNT_TPMI_INSTANCES. 250 */ 251 struct isst_tpmi_instance_count { 252 __u8 socket_id; 253 __u8 count; 254 __u16 valid_mask; 255 }; 256 257 /** 258 * struct isst_perf_level_info - Structure to get information on SST-PP levels 259 * @socket_id: Socket/package id 260 * @power_domain: Power Domain id 261 * @logical_cpu: CPU number 262 * @clos: Clos ID to assign to the logical CPU 263 * @max_level: Maximum performance level supported by the platform 264 * @feature_rev: The feature revision for SST-PP supported by the platform 265 * @level_mask: Mask of supported performance levels 266 * @current_level: Current performance level 267 * @feature_state: SST-BF and SST-TF (enabled/disabled) status at current level 268 * @locked: SST-PP performance level change is locked/unlocked 269 * @enabled: SST-PP feature is enabled or not 270 * @sst-tf_support: SST-TF support status at this level 271 * @sst-bf_support: SST-BF support status at this level 272 * 273 * Structure to get SST-PP details using IOCTL ISST_IF_PERF_LEVELS. 274 */ 275 struct isst_perf_level_info { 276 __u8 socket_id; 277 __u8 power_domain_id; 278 __u8 max_level; 279 __u8 feature_rev; 280 __u8 level_mask; 281 __u8 current_level; 282 __u8 feature_state; 283 __u8 locked; 284 __u8 enabled; 285 __u8 sst_tf_support; 286 __u8 sst_bf_support; 287 }; 288 289 /** 290 * struct isst_perf_level_control - Structure to set SST-PP level 291 * @socket_id: Socket/package id 292 * @power_domain: Power Domain id 293 * @level: level to set 294 * 295 * Structure used change SST-PP level using IOCTL ISST_IF_PERF_SET_LEVEL. 296 */ 297 struct isst_perf_level_control { 298 __u8 socket_id; 299 __u8 power_domain_id; 300 __u8 level; 301 }; 302 303 /** 304 * struct isst_perf_feature_control - Structure to activate SST-BF/SST-TF 305 * @socket_id: Socket/package id 306 * @power_domain: Power Domain id 307 * @feature: bit 0 = SST-BF state, bit 1 = SST-TF state 308 * 309 * Structure used to enable SST-BF/SST-TF using IOCTL ISST_IF_PERF_SET_FEATURE. 310 */ 311 struct isst_perf_feature_control { 312 __u8 socket_id; 313 __u8 power_domain_id; 314 __u8 feature; 315 }; 316 317 #define TRL_MAX_BUCKETS 8 318 #define TRL_MAX_LEVELS 6 319 320 /** 321 * struct isst_perf_level_data_info - Structure to get SST-PP level details 322 * @socket_id: Socket/package id 323 * @power_domain: Power Domain id 324 * @level: SST-PP level for which caller wants to get information 325 * @tdp_ratio: TDP Ratio 326 * @base_freq_mhz: Base frequency in MHz 327 * @base_freq_avx2_mhz: AVX2 Base frequency in MHz 328 * @base_freq_avx512_mhz: AVX512 base frequency in MHz 329 * @base_freq_amx_mhz: AMX base frequency in MHz 330 * @thermal_design_power_w: Thermal design (TDP) power 331 * @tjunction_max_c: Max junction temperature 332 * @max_memory_freq_mhz: Max memory frequency in MHz 333 * @cooling_type: Type of cooling is used 334 * @p0_freq_mhz: core maximum frequency 335 * @p1_freq_mhz: Core TDP frequency 336 * @pn_freq_mhz: Core maximum efficiency frequency 337 * @pm_freq_mhz: Core minimum frequency 338 * @p0_fabric_freq_mhz: Fabric (Uncore) maximum frequency 339 * @p1_fabric_freq_mhz: Fabric (Uncore) TDP frequency 340 * @pn_fabric_freq_mhz: Fabric (Uncore) minimum efficiency frequency 341 * @pm_fabric_freq_mhz: Fabric (Uncore) minimum frequency 342 * @max_buckets: Maximum trl buckets 343 * @max_trl_levels: Maximum trl levels 344 * @bucket_core_counts[TRL_MAX_BUCKETS]: Number of cores per bucket 345 * @trl_freq_mhz[TRL_MAX_LEVELS][TRL_MAX_BUCKETS]: maximum frequency 346 * for a bucket and trl level 347 * 348 * Structure used to get information on frequencies and TDP for a SST-PP 349 * level using ISST_IF_GET_PERF_LEVEL_INFO. 350 */ 351 struct isst_perf_level_data_info { 352 __u8 socket_id; 353 __u8 power_domain_id; 354 __u16 level; 355 __u16 tdp_ratio; 356 __u16 base_freq_mhz; 357 __u16 base_freq_avx2_mhz; 358 __u16 base_freq_avx512_mhz; 359 __u16 base_freq_amx_mhz; 360 __u16 thermal_design_power_w; 361 __u16 tjunction_max_c; 362 __u16 max_memory_freq_mhz; 363 __u16 cooling_type; 364 __u16 p0_freq_mhz; 365 __u16 p1_freq_mhz; 366 __u16 pn_freq_mhz; 367 __u16 pm_freq_mhz; 368 __u16 p0_fabric_freq_mhz; 369 __u16 p1_fabric_freq_mhz; 370 __u16 pn_fabric_freq_mhz; 371 __u16 pm_fabric_freq_mhz; 372 __u16 max_buckets; 373 __u16 max_trl_levels; 374 __u16 bucket_core_counts[TRL_MAX_BUCKETS]; 375 __u16 trl_freq_mhz[TRL_MAX_LEVELS][TRL_MAX_BUCKETS]; 376 }; 377 378 /** 379 * struct isst_perf_level_cpu_mask - Structure to get SST-PP level CPU mask 380 * @socket_id: Socket/package id 381 * @power_domain: Power Domain id 382 * @level: SST-PP level for which caller wants to get information 383 * @punit_cpu_map: Set to 1 if the CPU number is punit numbering not 384 * Linux CPU number. If 0 CPU buffer is copied to user space 385 * supplied cpu_buffer of size cpu_buffer_size. Punit 386 * cpu mask is copied to "mask" field. 387 * @mask: cpu mask for this PP level (punit CPU numbering) 388 * @cpu_buffer_size: size of cpu_buffer also used to return the copied CPU 389 * buffer size. 390 * @cpu_buffer: Buffer to copy CPU mask when punit_cpu_map is 0 391 * 392 * Structure used to get cpumask for a SST-PP level using 393 * IOCTL ISST_IF_GET_PERF_LEVEL_CPU_MASK. Also used to get CPU mask for 394 * IOCTL ISST_IF_GET_BASE_FREQ_CPU_MASK for SST-BF. 395 */ 396 struct isst_perf_level_cpu_mask { 397 __u8 socket_id; 398 __u8 power_domain_id; 399 __u8 level; 400 __u8 punit_cpu_map; 401 __u64 mask; 402 __u16 cpu_buffer_size; 403 __s8 cpu_buffer[1]; 404 }; 405 406 /** 407 * struct isst_base_freq_info - Structure to get SST-BF frequencies 408 * @socket_id: Socket/package id 409 * @power_domain: Power Domain id 410 * @level: SST-PP level for which caller wants to get information 411 * @high_base_freq_mhz: High priority CPU base frequency 412 * @low_base_freq_mhz: Low priority CPU base frequency 413 * @tjunction_max_c: Max junction temperature 414 * @thermal_design_power_w: Thermal design power in watts 415 * 416 * Structure used to get SST-BF information using 417 * IOCTL ISST_IF_GET_BASE_FREQ_INFO. 418 */ 419 struct isst_base_freq_info { 420 __u8 socket_id; 421 __u8 power_domain_id; 422 __u16 level; 423 __u16 high_base_freq_mhz; 424 __u16 low_base_freq_mhz; 425 __u16 tjunction_max_c; 426 __u16 thermal_design_power_w; 427 }; 428 429 /** 430 * struct isst_turbo_freq_info - Structure to get SST-TF frequencies 431 * @socket_id: Socket/package id 432 * @power_domain: Power Domain id 433 * @level: SST-PP level for which caller wants to get information 434 * @max_clip_freqs: Maximum number of low priority core clipping frequencies 435 * @lp_clip_freq_mhz: Clip frequencies per trl level 436 * @bucket_core_counts: Maximum number of cores for a bucket 437 * @trl_freq_mhz: Frequencies per trl level for each bucket 438 * 439 * Structure used to get SST-TF information using 440 * IOCTL ISST_IF_GET_TURBO_FREQ_INFO. 441 */ 442 struct isst_turbo_freq_info { 443 __u8 socket_id; 444 __u8 power_domain_id; 445 __u16 level; 446 __u16 max_clip_freqs; 447 __u16 max_buckets; 448 __u16 max_trl_levels; 449 __u16 lp_clip_freq_mhz[TRL_MAX_LEVELS]; 450 __u16 bucket_core_counts[TRL_MAX_BUCKETS]; 451 __u16 trl_freq_mhz[TRL_MAX_LEVELS][TRL_MAX_BUCKETS]; 452 }; 453 454 #define ISST_IF_MAGIC 0xFE 455 #define ISST_IF_GET_PLATFORM_INFO _IOR(ISST_IF_MAGIC, 0, struct isst_if_platform_info *) 456 #define ISST_IF_GET_PHY_ID _IOWR(ISST_IF_MAGIC, 1, struct isst_if_cpu_map *) 457 #define ISST_IF_IO_CMD _IOW(ISST_IF_MAGIC, 2, struct isst_if_io_regs *) 458 #define ISST_IF_MBOX_COMMAND _IOWR(ISST_IF_MAGIC, 3, struct isst_if_mbox_cmds *) 459 #define ISST_IF_MSR_COMMAND _IOWR(ISST_IF_MAGIC, 4, struct isst_if_msr_cmds *) 460 461 #define ISST_IF_COUNT_TPMI_INSTANCES _IOR(ISST_IF_MAGIC, 5, struct isst_tpmi_instance_count *) 462 #define ISST_IF_CORE_POWER_STATE _IOWR(ISST_IF_MAGIC, 6, struct isst_core_power *) 463 #define ISST_IF_CLOS_PARAM _IOWR(ISST_IF_MAGIC, 7, struct isst_clos_param *) 464 #define ISST_IF_CLOS_ASSOC _IOWR(ISST_IF_MAGIC, 8, struct isst_if_clos_assoc_cmds *) 465 466 #define ISST_IF_PERF_LEVELS _IOWR(ISST_IF_MAGIC, 9, struct isst_perf_level_info *) 467 #define ISST_IF_PERF_SET_LEVEL _IOW(ISST_IF_MAGIC, 10, struct isst_perf_level_control *) 468 #define ISST_IF_PERF_SET_FEATURE _IOW(ISST_IF_MAGIC, 11, struct isst_perf_feature_control *) 469 #define ISST_IF_GET_PERF_LEVEL_INFO _IOR(ISST_IF_MAGIC, 12, struct isst_perf_level_data_info *) 470 #define ISST_IF_GET_PERF_LEVEL_CPU_MASK _IOR(ISST_IF_MAGIC, 13, struct isst_perf_level_cpu_mask *) 471 #define ISST_IF_GET_BASE_FREQ_INFO _IOR(ISST_IF_MAGIC, 14, struct isst_base_freq_info *) 472 #define ISST_IF_GET_BASE_FREQ_CPU_MASK _IOR(ISST_IF_MAGIC, 15, struct isst_perf_level_cpu_mask *) 473 #define ISST_IF_GET_TURBO_FREQ_INFO _IOR(ISST_IF_MAGIC, 16, struct isst_turbo_freq_info *) 474 475 #endif 476