1 /* 2 * Copyright 2012 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 AMD_ACPI_H 25 #define AMD_ACPI_H 26 27 #define ACPI_AC_CLASS "ac_adapter" 28 29 struct atif_verify_interface { 30 u16 size; /* structure size in bytes (includes size field) */ 31 u16 version; /* version */ 32 u32 notification_mask; /* supported notifications mask */ 33 u32 function_bits; /* supported functions bit vector */ 34 } __packed; 35 36 struct atif_system_params { 37 u16 size; /* structure size in bytes (includes size field) */ 38 u32 valid_mask; /* valid flags mask */ 39 u32 flags; /* flags */ 40 u8 command_code; /* notify command code */ 41 } __packed; 42 43 struct atif_sbios_requests { 44 u16 size; /* structure size in bytes (includes size field) */ 45 u32 pending; /* pending sbios requests */ 46 u8 panel_exp_mode; /* panel expansion mode */ 47 u8 thermal_gfx; /* thermal state: target gfx controller */ 48 u8 thermal_state; /* thermal state: state id (0: exit state, non-0: state) */ 49 u8 forced_power_gfx; /* forced power state: target gfx controller */ 50 u8 forced_power_state; /* forced power state: state id */ 51 u8 system_power_src; /* system power source */ 52 u8 backlight_level; /* panel backlight level (0-255) */ 53 } __packed; 54 55 #define ATIF_NOTIFY_MASK 0x3 56 #define ATIF_NOTIFY_NONE 0 57 #define ATIF_NOTIFY_81 1 58 #define ATIF_NOTIFY_N 2 59 60 struct atcs_verify_interface { 61 u16 size; /* structure size in bytes (includes size field) */ 62 u16 version; /* version */ 63 u32 function_bits; /* supported functions bit vector */ 64 } __packed; 65 66 #define ATCS_VALID_FLAGS_MASK 0x3 67 68 struct atcs_pref_req_input { 69 u16 size; /* structure size in bytes (includes size field) */ 70 u16 client_id; /* client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) */ 71 u16 valid_flags_mask; /* valid flags mask */ 72 u16 flags; /* flags */ 73 u8 req_type; /* request type */ 74 u8 perf_req; /* performance request */ 75 } __packed; 76 77 struct atcs_pref_req_output { 78 u16 size; /* structure size in bytes (includes size field) */ 79 u8 ret_val; /* return value */ 80 } __packed; 81 82 /* AMD hw uses four ACPI control methods: 83 * 1. ATIF 84 * ARG0: (ACPI_INTEGER) function code 85 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes 86 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes 87 * ATIF provides an entry point for the gfx driver to interact with the sbios. 88 * The AMD ACPI notification mechanism uses Notify (VGA, 0x81) or a custom 89 * notification. Which notification is used as indicated by the ATIF Control 90 * Method GET_SYSTEM_PARAMETERS. When the driver receives Notify (VGA, 0x81) or 91 * a custom notification it invokes ATIF Control Method GET_SYSTEM_BIOS_REQUESTS 92 * to identify pending System BIOS requests and associated parameters. For 93 * example, if one of the pending requests is DISPLAY_SWITCH_REQUEST, the driver 94 * will perform display device detection and invoke ATIF Control Method 95 * SELECT_ACTIVE_DISPLAYS. 96 * 97 * 2. ATPX 98 * ARG0: (ACPI_INTEGER) function code 99 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes 100 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes 101 * ATPX methods are used on PowerXpress systems to handle mux switching and 102 * discrete GPU power control. 103 * 104 * 3. ATRM 105 * ARG0: (ACPI_INTEGER) offset of vbios rom data 106 * ARG1: (ACPI_BUFFER) size of the buffer to fill (up to 4K). 107 * OUTPUT: (ACPI_BUFFER) output buffer 108 * ATRM provides an interfacess to access the discrete GPU vbios image on 109 * PowerXpress systems with multiple GPUs. 110 * 111 * 4. ATCS 112 * ARG0: (ACPI_INTEGER) function code 113 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes 114 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes 115 * ATCS provides an interface to AMD chipset specific functionality. 116 * 117 */ 118 /* ATIF */ 119 #define ATIF_FUNCTION_VERIFY_INTERFACE 0x0 120 /* ARG0: ATIF_FUNCTION_VERIFY_INTERFACE 121 * ARG1: none 122 * OUTPUT: 123 * WORD - structure size in bytes (includes size field) 124 * WORD - version 125 * DWORD - supported notifications mask 126 * DWORD - supported functions bit vector 127 */ 128 /* Notifications mask */ 129 # define ATIF_DISPLAY_SWITCH_REQUEST_SUPPORTED (1 << 0) 130 # define ATIF_EXPANSION_MODE_CHANGE_REQUEST_SUPPORTED (1 << 1) 131 # define ATIF_THERMAL_STATE_CHANGE_REQUEST_SUPPORTED (1 << 2) 132 # define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST_SUPPORTED (1 << 3) 133 # define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST_SUPPORTED (1 << 4) 134 # define ATIF_DISPLAY_CONF_CHANGE_REQUEST_SUPPORTED (1 << 5) 135 # define ATIF_PX_GFX_SWITCH_REQUEST_SUPPORTED (1 << 6) 136 # define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST_SUPPORTED (1 << 7) 137 # define ATIF_DGPU_DISPLAY_EVENT_SUPPORTED (1 << 8) 138 /* supported functions vector */ 139 # define ATIF_GET_SYSTEM_PARAMETERS_SUPPORTED (1 << 0) 140 # define ATIF_GET_SYSTEM_BIOS_REQUESTS_SUPPORTED (1 << 1) 141 # define ATIF_SELECT_ACTIVE_DISPLAYS_SUPPORTED (1 << 2) 142 # define ATIF_GET_LID_STATE_SUPPORTED (1 << 3) 143 # define ATIF_GET_TV_STANDARD_FROM_CMOS_SUPPORTED (1 << 4) 144 # define ATIF_SET_TV_STANDARD_IN_CMOS_SUPPORTED (1 << 5) 145 # define ATIF_GET_PANEL_EXPANSION_MODE_FROM_CMOS_SUPPORTED (1 << 6) 146 # define ATIF_SET_PANEL_EXPANSION_MODE_IN_CMOS_SUPPORTED (1 << 7) 147 # define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED (1 << 12) 148 # define ATIF_GET_GRAPHICS_DEVICE_TYPES_SUPPORTED (1 << 14) 149 #define ATIF_FUNCTION_GET_SYSTEM_PARAMETERS 0x1 150 /* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS 151 * ARG1: none 152 * OUTPUT: 153 * WORD - structure size in bytes (includes size field) 154 * DWORD - valid flags mask 155 * DWORD - flags 156 * 157 * OR 158 * 159 * WORD - structure size in bytes (includes size field) 160 * DWORD - valid flags mask 161 * DWORD - flags 162 * BYTE - notify command code 163 * 164 * flags 165 * bits 1:0: 166 * 0 - Notify(VGA, 0x81) is not used for notification 167 * 1 - Notify(VGA, 0x81) is used for notification 168 * 2 - Notify(VGA, n) is used for notification where 169 * n (0xd0-0xd9) is specified in notify command code. 170 * bit 2: 171 * 1 - lid changes not reported though int10 172 */ 173 #define ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS 0x2 174 /* ARG0: ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS 175 * ARG1: none 176 * OUTPUT: 177 * WORD - structure size in bytes (includes size field) 178 * DWORD - pending sbios requests 179 * BYTE - panel expansion mode 180 * BYTE - thermal state: target gfx controller 181 * BYTE - thermal state: state id (0: exit state, non-0: state) 182 * BYTE - forced power state: target gfx controller 183 * BYTE - forced power state: state id 184 * BYTE - system power source 185 * BYTE - panel backlight level (0-255) 186 */ 187 /* pending sbios requests */ 188 # define ATIF_DISPLAY_SWITCH_REQUEST (1 << 0) 189 # define ATIF_EXPANSION_MODE_CHANGE_REQUEST (1 << 1) 190 # define ATIF_THERMAL_STATE_CHANGE_REQUEST (1 << 2) 191 # define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST (1 << 3) 192 # define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST (1 << 4) 193 # define ATIF_DISPLAY_CONF_CHANGE_REQUEST (1 << 5) 194 # define ATIF_PX_GFX_SWITCH_REQUEST (1 << 6) 195 # define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST (1 << 7) 196 # define ATIF_DGPU_DISPLAY_EVENT (1 << 8) 197 /* panel expansion mode */ 198 # define ATIF_PANEL_EXPANSION_DISABLE 0 199 # define ATIF_PANEL_EXPANSION_FULL 1 200 # define ATIF_PANEL_EXPANSION_ASPECT 2 201 /* target gfx controller */ 202 # define ATIF_TARGET_GFX_SINGLE 0 203 # define ATIF_TARGET_GFX_PX_IGPU 1 204 # define ATIF_TARGET_GFX_PX_DGPU 2 205 /* system power source */ 206 # define ATIF_POWER_SOURCE_AC 1 207 # define ATIF_POWER_SOURCE_DC 2 208 # define ATIF_POWER_SOURCE_RESTRICTED_AC_1 3 209 # define ATIF_POWER_SOURCE_RESTRICTED_AC_2 4 210 #define ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS 0x3 211 /* ARG0: ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS 212 * ARG1: 213 * WORD - structure size in bytes (includes size field) 214 * WORD - selected displays 215 * WORD - connected displays 216 * OUTPUT: 217 * WORD - structure size in bytes (includes size field) 218 * WORD - selected displays 219 */ 220 # define ATIF_LCD1 (1 << 0) 221 # define ATIF_CRT1 (1 << 1) 222 # define ATIF_TV (1 << 2) 223 # define ATIF_DFP1 (1 << 3) 224 # define ATIF_CRT2 (1 << 4) 225 # define ATIF_LCD2 (1 << 5) 226 # define ATIF_DFP2 (1 << 7) 227 # define ATIF_CV (1 << 8) 228 # define ATIF_DFP3 (1 << 9) 229 # define ATIF_DFP4 (1 << 10) 230 # define ATIF_DFP5 (1 << 11) 231 # define ATIF_DFP6 (1 << 12) 232 #define ATIF_FUNCTION_GET_LID_STATE 0x4 233 /* ARG0: ATIF_FUNCTION_GET_LID_STATE 234 * ARG1: none 235 * OUTPUT: 236 * WORD - structure size in bytes (includes size field) 237 * BYTE - lid state (0: open, 1: closed) 238 * 239 * GET_LID_STATE only works at boot and resume, for general lid 240 * status, use the kernel provided status 241 */ 242 #define ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS 0x5 243 /* ARG0: ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS 244 * ARG1: none 245 * OUTPUT: 246 * WORD - structure size in bytes (includes size field) 247 * BYTE - 0 248 * BYTE - TV standard 249 */ 250 # define ATIF_TV_STD_NTSC 0 251 # define ATIF_TV_STD_PAL 1 252 # define ATIF_TV_STD_PALM 2 253 # define ATIF_TV_STD_PAL60 3 254 # define ATIF_TV_STD_NTSCJ 4 255 # define ATIF_TV_STD_PALCN 5 256 # define ATIF_TV_STD_PALN 6 257 # define ATIF_TV_STD_SCART_RGB 9 258 #define ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS 0x6 259 /* ARG0: ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS 260 * ARG1: 261 * WORD - structure size in bytes (includes size field) 262 * BYTE - 0 263 * BYTE - TV standard 264 * OUTPUT: none 265 */ 266 #define ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS 0x7 267 /* ARG0: ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS 268 * ARG1: none 269 * OUTPUT: 270 * WORD - structure size in bytes (includes size field) 271 * BYTE - panel expansion mode 272 */ 273 #define ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS 0x8 274 /* ARG0: ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS 275 * ARG1: 276 * WORD - structure size in bytes (includes size field) 277 * BYTE - panel expansion mode 278 * OUTPUT: none 279 */ 280 #define ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION 0xD 281 /* ARG0: ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION 282 * ARG1: 283 * WORD - structure size in bytes (includes size field) 284 * WORD - gfx controller id 285 * BYTE - current temperature (degress Celsius) 286 * OUTPUT: none 287 */ 288 #define ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES 0xF 289 /* ARG0: ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES 290 * ARG1: none 291 * OUTPUT: 292 * WORD - number of gfx devices 293 * WORD - device structure size in bytes (excludes device size field) 294 * DWORD - flags \ 295 * WORD - bus number } repeated structure 296 * WORD - device number / 297 */ 298 /* flags */ 299 # define ATIF_PX_REMOVABLE_GRAPHICS_DEVICE (1 << 0) 300 # define ATIF_XGP_PORT (1 << 1) 301 # define ATIF_VGA_ENABLED_GRAPHICS_DEVICE (1 << 2) 302 # define ATIF_XGP_PORT_IN_DOCK (1 << 3) 303 304 /* ATPX */ 305 #define ATPX_FUNCTION_VERIFY_INTERFACE 0x0 306 /* ARG0: ATPX_FUNCTION_VERIFY_INTERFACE 307 * ARG1: none 308 * OUTPUT: 309 * WORD - structure size in bytes (includes size field) 310 * WORD - version 311 * DWORD - supported functions bit vector 312 */ 313 /* supported functions vector */ 314 # define ATPX_GET_PX_PARAMETERS_SUPPORTED (1 << 0) 315 # define ATPX_POWER_CONTROL_SUPPORTED (1 << 1) 316 # define ATPX_DISPLAY_MUX_CONTROL_SUPPORTED (1 << 2) 317 # define ATPX_I2C_MUX_CONTROL_SUPPORTED (1 << 3) 318 # define ATPX_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION_SUPPORTED (1 << 4) 319 # define ATPX_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION_SUPPORTED (1 << 5) 320 # define ATPX_GET_DISPLAY_CONNECTORS_MAPPING_SUPPORTED (1 << 7) 321 # define ATPX_GET_DISPLAY_DETECTION_PORTS_SUPPORTED (1 << 8) 322 #define ATPX_FUNCTION_GET_PX_PARAMETERS 0x1 323 /* ARG0: ATPX_FUNCTION_GET_PX_PARAMETERS 324 * ARG1: none 325 * OUTPUT: 326 * WORD - structure size in bytes (includes size field) 327 * DWORD - valid flags mask 328 * DWORD - flags 329 */ 330 /* flags */ 331 # define ATPX_LVDS_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 0) 332 # define ATPX_CRT1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 1) 333 # define ATPX_DVI1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 2) 334 # define ATPX_CRT1_RGB_SIGNAL_MUXED (1 << 3) 335 # define ATPX_TV_SIGNAL_MUXED (1 << 4) 336 # define ATPX_DFP_SIGNAL_MUXED (1 << 5) 337 # define ATPX_SEPARATE_MUX_FOR_I2C (1 << 6) 338 # define ATPX_DYNAMIC_PX_SUPPORTED (1 << 7) 339 # define ATPX_ACF_NOT_SUPPORTED (1 << 8) 340 # define ATPX_FIXED_NOT_SUPPORTED (1 << 9) 341 # define ATPX_DYNAMIC_DGPU_POWER_OFF_SUPPORTED (1 << 10) 342 # define ATPX_DGPU_REQ_POWER_FOR_DISPLAYS (1 << 11) 343 #define ATPX_FUNCTION_POWER_CONTROL 0x2 344 /* ARG0: ATPX_FUNCTION_POWER_CONTROL 345 * ARG1: 346 * WORD - structure size in bytes (includes size field) 347 * BYTE - dGPU power state (0: power off, 1: power on) 348 * OUTPUT: none 349 */ 350 #define ATPX_FUNCTION_DISPLAY_MUX_CONTROL 0x3 351 /* ARG0: ATPX_FUNCTION_DISPLAY_MUX_CONTROL 352 * ARG1: 353 * WORD - structure size in bytes (includes size field) 354 * WORD - display mux control (0: iGPU, 1: dGPU) 355 * OUTPUT: none 356 */ 357 # define ATPX_INTEGRATED_GPU 0 358 # define ATPX_DISCRETE_GPU 1 359 #define ATPX_FUNCTION_I2C_MUX_CONTROL 0x4 360 /* ARG0: ATPX_FUNCTION_I2C_MUX_CONTROL 361 * ARG1: 362 * WORD - structure size in bytes (includes size field) 363 * WORD - i2c/aux/hpd mux control (0: iGPU, 1: dGPU) 364 * OUTPUT: none 365 */ 366 #define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION 0x5 367 /* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION 368 * ARG1: 369 * WORD - structure size in bytes (includes size field) 370 * WORD - target gpu (0: iGPU, 1: dGPU) 371 * OUTPUT: none 372 */ 373 #define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION 0x6 374 /* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION 375 * ARG1: 376 * WORD - structure size in bytes (includes size field) 377 * WORD - target gpu (0: iGPU, 1: dGPU) 378 * OUTPUT: none 379 */ 380 #define ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING 0x8 381 /* ARG0: ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING 382 * ARG1: none 383 * OUTPUT: 384 * WORD - number of display connectors 385 * WORD - connector structure size in bytes (excludes connector size field) 386 * BYTE - flags \ 387 * BYTE - ATIF display vector bit position } repeated 388 * BYTE - adapter id (0: iGPU, 1-n: dGPU ordered by pcie bus number) } structure 389 * WORD - connector ACPI id / 390 */ 391 /* flags */ 392 # define ATPX_DISPLAY_OUTPUT_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 0) 393 # define ATPX_DISPLAY_HPD_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 1) 394 # define ATPX_DISPLAY_I2C_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 2) 395 #define ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS 0x9 396 /* ARG0: ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS 397 * ARG1: none 398 * OUTPUT: 399 * WORD - number of HPD/DDC ports 400 * WORD - port structure size in bytes (excludes port size field) 401 * BYTE - ATIF display vector bit position \ 402 * BYTE - hpd id } reapeated structure 403 * BYTE - ddc id / 404 * 405 * available on A+A systems only 406 */ 407 /* hpd id */ 408 # define ATPX_HPD_NONE 0 409 # define ATPX_HPD1 1 410 # define ATPX_HPD2 2 411 # define ATPX_HPD3 3 412 # define ATPX_HPD4 4 413 # define ATPX_HPD5 5 414 # define ATPX_HPD6 6 415 /* ddc id */ 416 # define ATPX_DDC_NONE 0 417 # define ATPX_DDC1 1 418 # define ATPX_DDC2 2 419 # define ATPX_DDC3 3 420 # define ATPX_DDC4 4 421 # define ATPX_DDC5 5 422 # define ATPX_DDC6 6 423 # define ATPX_DDC7 7 424 # define ATPX_DDC8 8 425 426 /* ATCS */ 427 #define ATCS_FUNCTION_VERIFY_INTERFACE 0x0 428 /* ARG0: ATCS_FUNCTION_VERIFY_INTERFACE 429 * ARG1: none 430 * OUTPUT: 431 * WORD - structure size in bytes (includes size field) 432 * WORD - version 433 * DWORD - supported functions bit vector 434 */ 435 /* supported functions vector */ 436 # define ATCS_GET_EXTERNAL_STATE_SUPPORTED (1 << 0) 437 # define ATCS_PCIE_PERFORMANCE_REQUEST_SUPPORTED (1 << 1) 438 # define ATCS_PCIE_DEVICE_READY_NOTIFICATION_SUPPORTED (1 << 2) 439 # define ATCS_SET_PCIE_BUS_WIDTH_SUPPORTED (1 << 3) 440 #define ATCS_FUNCTION_GET_EXTERNAL_STATE 0x1 441 /* ARG0: ATCS_FUNCTION_GET_EXTERNAL_STATE 442 * ARG1: none 443 * OUTPUT: 444 * WORD - structure size in bytes (includes size field) 445 * DWORD - valid flags mask 446 * DWORD - flags (0: undocked, 1: docked) 447 */ 448 /* flags */ 449 # define ATCS_DOCKED (1 << 0) 450 #define ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST 0x2 451 /* ARG0: ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST 452 * ARG1: 453 * WORD - structure size in bytes (includes size field) 454 * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) 455 * WORD - valid flags mask 456 * WORD - flags 457 * BYTE - request type 458 * BYTE - performance request 459 * OUTPUT: 460 * WORD - structure size in bytes (includes size field) 461 * BYTE - return value 462 */ 463 /* flags */ 464 # define ATCS_ADVERTISE_CAPS (1 << 0) 465 # define ATCS_WAIT_FOR_COMPLETION (1 << 1) 466 /* request type */ 467 # define ATCS_PCIE_LINK_SPEED 1 468 /* performance request */ 469 # define ATCS_REMOVE 0 470 # define ATCS_FORCE_LOW_POWER 1 471 # define ATCS_PERF_LEVEL_1 2 /* PCIE Gen 1 */ 472 # define ATCS_PERF_LEVEL_2 3 /* PCIE Gen 2 */ 473 # define ATCS_PERF_LEVEL_3 4 /* PCIE Gen 3 */ 474 /* return value */ 475 # define ATCS_REQUEST_REFUSED 1 476 # define ATCS_REQUEST_COMPLETE 2 477 # define ATCS_REQUEST_IN_PROGRESS 3 478 #define ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION 0x3 479 /* ARG0: ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION 480 * ARG1: none 481 * OUTPUT: none 482 */ 483 #define ATCS_FUNCTION_SET_PCIE_BUS_WIDTH 0x4 484 /* ARG0: ATCS_FUNCTION_SET_PCIE_BUS_WIDTH 485 * ARG1: 486 * WORD - structure size in bytes (includes size field) 487 * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) 488 * BYTE - number of active lanes 489 * OUTPUT: 490 * WORD - structure size in bytes (includes size field) 491 * BYTE - number of active lanes 492 */ 493 494 #endif 495