1 /* 2 * Copyright 2019 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 * Authors: AMD 23 * 24 */ 25 26 #include "../dmub_srv.h" 27 #include "dmub_dcn20.h" 28 #include "dmub_dcn21.h" 29 #include "dmub_cmd.h" 30 #include "dmub_dcn30.h" 31 #include "dmub_dcn301.h" 32 #include "dmub_dcn302.h" 33 #include "dmub_dcn303.h" 34 #include "dmub_dcn31.h" 35 #include "dmub_dcn315.h" 36 #include "dmub_dcn316.h" 37 #include "dmub_dcn32.h" 38 #include "os_types.h" 39 /* 40 * Note: the DMUB service is standalone. No additional headers should be 41 * added below or above this line unless they reside within the DMUB 42 * folder. 43 */ 44 45 /* Alignment for framebuffer memory. */ 46 #define DMUB_FB_ALIGNMENT (1024 * 1024) 47 48 /* Stack size. */ 49 #define DMUB_STACK_SIZE (128 * 1024) 50 51 /* Context size. */ 52 #define DMUB_CONTEXT_SIZE (512 * 1024) 53 54 /* Mailbox size : Ring buffers are required for both inbox and outbox */ 55 #define DMUB_MAILBOX_SIZE ((2 * DMUB_RB_SIZE)) 56 57 /* Default state size if meta is absent. */ 58 #define DMUB_FW_STATE_SIZE (64 * 1024) 59 60 /* Default tracebuffer size if meta is absent. */ 61 #define DMUB_TRACE_BUFFER_SIZE (64 * 1024) 62 63 64 /* Default scratch mem size. */ 65 #define DMUB_SCRATCH_MEM_SIZE (256) 66 67 /* Number of windows in use. */ 68 #define DMUB_NUM_WINDOWS (DMUB_WINDOW_TOTAL) 69 /* Base addresses. */ 70 71 #define DMUB_CW0_BASE (0x60000000) 72 #define DMUB_CW1_BASE (0x61000000) 73 #define DMUB_CW3_BASE (0x63000000) 74 #define DMUB_CW4_BASE (0x64000000) 75 #define DMUB_CW5_BASE (0x65000000) 76 #define DMUB_CW6_BASE (0x66000000) 77 78 #define DMUB_REGION5_BASE (0xA0000000) 79 80 static inline uint32_t dmub_align(uint32_t val, uint32_t factor) 81 { 82 return (val + factor - 1) / factor * factor; 83 } 84 85 void dmub_flush_buffer_mem(const struct dmub_fb *fb) 86 { 87 const uint8_t *base = (const uint8_t *)fb->cpu_addr; 88 uint8_t buf[64]; 89 uint32_t pos, end; 90 91 /** 92 * Read 64-byte chunks since we don't want to store a 93 * large temporary buffer for this purpose. 94 */ 95 end = fb->size / sizeof(buf) * sizeof(buf); 96 97 for (pos = 0; pos < end; pos += sizeof(buf)) 98 dmub_memcpy(buf, base + pos, sizeof(buf)); 99 100 /* Read anything leftover into the buffer. */ 101 if (end < fb->size) 102 dmub_memcpy(buf, base + pos, fb->size - end); 103 } 104 105 static const struct dmub_fw_meta_info * 106 dmub_get_fw_meta_info_from_blob(const uint8_t *blob, uint32_t blob_size, uint32_t meta_offset) 107 { 108 const union dmub_fw_meta *meta; 109 110 if (!blob || !blob_size) 111 return NULL; 112 113 if (blob_size < sizeof(union dmub_fw_meta) + meta_offset) 114 return NULL; 115 116 meta = (const union dmub_fw_meta *)(blob + blob_size - meta_offset - 117 sizeof(union dmub_fw_meta)); 118 119 if (meta->info.magic_value != DMUB_FW_META_MAGIC) 120 return NULL; 121 122 return &meta->info; 123 } 124 125 static const struct dmub_fw_meta_info * 126 dmub_get_fw_meta_info(const struct dmub_srv_region_params *params) 127 { 128 const struct dmub_fw_meta_info *info = NULL; 129 130 if (params->fw_bss_data && params->bss_data_size) { 131 /* Legacy metadata region. */ 132 info = dmub_get_fw_meta_info_from_blob(params->fw_bss_data, 133 params->bss_data_size, 134 DMUB_FW_META_OFFSET); 135 } else if (params->fw_inst_const && params->inst_const_size) { 136 /* Combined metadata region - can be aligned to 16-bytes. */ 137 uint32_t i; 138 139 for (i = 0; i < 16; ++i) { 140 info = dmub_get_fw_meta_info_from_blob( 141 params->fw_inst_const, params->inst_const_size, i); 142 143 if (info) 144 break; 145 } 146 } 147 148 return info; 149 } 150 151 static bool dmub_srv_hw_setup(struct dmub_srv *dmub, enum dmub_asic asic) 152 { 153 struct dmub_srv_hw_funcs *funcs = &dmub->hw_funcs; 154 155 switch (asic) { 156 case DMUB_ASIC_DCN20: 157 case DMUB_ASIC_DCN21: 158 case DMUB_ASIC_DCN30: 159 case DMUB_ASIC_DCN301: 160 case DMUB_ASIC_DCN302: 161 case DMUB_ASIC_DCN303: 162 dmub->regs = &dmub_srv_dcn20_regs; 163 164 funcs->reset = dmub_dcn20_reset; 165 funcs->reset_release = dmub_dcn20_reset_release; 166 funcs->backdoor_load = dmub_dcn20_backdoor_load; 167 funcs->setup_windows = dmub_dcn20_setup_windows; 168 funcs->setup_mailbox = dmub_dcn20_setup_mailbox; 169 funcs->get_inbox1_rptr = dmub_dcn20_get_inbox1_rptr; 170 funcs->set_inbox1_wptr = dmub_dcn20_set_inbox1_wptr; 171 funcs->is_supported = dmub_dcn20_is_supported; 172 funcs->is_hw_init = dmub_dcn20_is_hw_init; 173 funcs->set_gpint = dmub_dcn20_set_gpint; 174 funcs->is_gpint_acked = dmub_dcn20_is_gpint_acked; 175 funcs->get_gpint_response = dmub_dcn20_get_gpint_response; 176 funcs->get_fw_status = dmub_dcn20_get_fw_boot_status; 177 funcs->enable_dmub_boot_options = dmub_dcn20_enable_dmub_boot_options; 178 funcs->skip_dmub_panel_power_sequence = dmub_dcn20_skip_dmub_panel_power_sequence; 179 funcs->get_current_time = dmub_dcn20_get_current_time; 180 181 // Out mailbox register access functions for RN and above 182 funcs->setup_out_mailbox = dmub_dcn20_setup_out_mailbox; 183 funcs->get_outbox1_wptr = dmub_dcn20_get_outbox1_wptr; 184 funcs->set_outbox1_rptr = dmub_dcn20_set_outbox1_rptr; 185 186 //outbox0 call stacks 187 funcs->setup_outbox0 = dmub_dcn20_setup_outbox0; 188 funcs->get_outbox0_wptr = dmub_dcn20_get_outbox0_wptr; 189 funcs->set_outbox0_rptr = dmub_dcn20_set_outbox0_rptr; 190 191 funcs->get_diagnostic_data = dmub_dcn20_get_diagnostic_data; 192 193 if (asic == DMUB_ASIC_DCN21) { 194 dmub->regs = &dmub_srv_dcn21_regs; 195 196 funcs->is_phy_init = dmub_dcn21_is_phy_init; 197 } 198 if (asic == DMUB_ASIC_DCN30) { 199 dmub->regs = &dmub_srv_dcn30_regs; 200 201 funcs->backdoor_load = dmub_dcn30_backdoor_load; 202 funcs->setup_windows = dmub_dcn30_setup_windows; 203 } 204 if (asic == DMUB_ASIC_DCN301) { 205 dmub->regs = &dmub_srv_dcn301_regs; 206 207 funcs->backdoor_load = dmub_dcn30_backdoor_load; 208 funcs->setup_windows = dmub_dcn30_setup_windows; 209 } 210 if (asic == DMUB_ASIC_DCN302) { 211 dmub->regs = &dmub_srv_dcn302_regs; 212 213 funcs->backdoor_load = dmub_dcn30_backdoor_load; 214 funcs->setup_windows = dmub_dcn30_setup_windows; 215 } 216 if (asic == DMUB_ASIC_DCN303) { 217 dmub->regs = &dmub_srv_dcn303_regs; 218 219 funcs->backdoor_load = dmub_dcn30_backdoor_load; 220 funcs->setup_windows = dmub_dcn30_setup_windows; 221 } 222 break; 223 224 case DMUB_ASIC_DCN31: 225 case DMUB_ASIC_DCN31B: 226 case DMUB_ASIC_DCN314: 227 case DMUB_ASIC_DCN315: 228 case DMUB_ASIC_DCN316: 229 if (asic == DMUB_ASIC_DCN315) 230 dmub->regs_dcn31 = &dmub_srv_dcn315_regs; 231 else if (asic == DMUB_ASIC_DCN316) 232 dmub->regs_dcn31 = &dmub_srv_dcn316_regs; 233 else 234 dmub->regs_dcn31 = &dmub_srv_dcn31_regs; 235 funcs->reset = dmub_dcn31_reset; 236 funcs->reset_release = dmub_dcn31_reset_release; 237 funcs->backdoor_load = dmub_dcn31_backdoor_load; 238 funcs->setup_windows = dmub_dcn31_setup_windows; 239 funcs->setup_mailbox = dmub_dcn31_setup_mailbox; 240 funcs->get_inbox1_rptr = dmub_dcn31_get_inbox1_rptr; 241 funcs->set_inbox1_wptr = dmub_dcn31_set_inbox1_wptr; 242 funcs->setup_out_mailbox = dmub_dcn31_setup_out_mailbox; 243 funcs->get_outbox1_wptr = dmub_dcn31_get_outbox1_wptr; 244 funcs->set_outbox1_rptr = dmub_dcn31_set_outbox1_rptr; 245 funcs->is_supported = dmub_dcn31_is_supported; 246 funcs->is_hw_init = dmub_dcn31_is_hw_init; 247 funcs->set_gpint = dmub_dcn31_set_gpint; 248 funcs->is_gpint_acked = dmub_dcn31_is_gpint_acked; 249 funcs->get_gpint_response = dmub_dcn31_get_gpint_response; 250 funcs->get_gpint_dataout = dmub_dcn31_get_gpint_dataout; 251 funcs->get_fw_status = dmub_dcn31_get_fw_boot_status; 252 funcs->enable_dmub_boot_options = dmub_dcn31_enable_dmub_boot_options; 253 funcs->skip_dmub_panel_power_sequence = dmub_dcn31_skip_dmub_panel_power_sequence; 254 //outbox0 call stacks 255 funcs->setup_outbox0 = dmub_dcn31_setup_outbox0; 256 funcs->get_outbox0_wptr = dmub_dcn31_get_outbox0_wptr; 257 funcs->set_outbox0_rptr = dmub_dcn31_set_outbox0_rptr; 258 259 funcs->get_diagnostic_data = dmub_dcn31_get_diagnostic_data; 260 funcs->should_detect = dmub_dcn31_should_detect; 261 funcs->get_current_time = dmub_dcn31_get_current_time; 262 263 break; 264 265 case DMUB_ASIC_DCN32: 266 case DMUB_ASIC_DCN321: 267 dmub->regs_dcn32 = &dmub_srv_dcn32_regs; 268 funcs->configure_dmub_in_system_memory = dmub_dcn32_configure_dmub_in_system_memory; 269 funcs->send_inbox0_cmd = dmub_dcn32_send_inbox0_cmd; 270 funcs->clear_inbox0_ack_register = dmub_dcn32_clear_inbox0_ack_register; 271 funcs->read_inbox0_ack_register = dmub_dcn32_read_inbox0_ack_register; 272 funcs->reset = dmub_dcn32_reset; 273 funcs->reset_release = dmub_dcn32_reset_release; 274 funcs->backdoor_load = dmub_dcn32_backdoor_load; 275 funcs->backdoor_load_zfb_mode = dmub_dcn32_backdoor_load_zfb_mode; 276 funcs->setup_windows = dmub_dcn32_setup_windows; 277 funcs->setup_mailbox = dmub_dcn32_setup_mailbox; 278 funcs->get_inbox1_rptr = dmub_dcn32_get_inbox1_rptr; 279 funcs->set_inbox1_wptr = dmub_dcn32_set_inbox1_wptr; 280 funcs->setup_out_mailbox = dmub_dcn32_setup_out_mailbox; 281 funcs->get_outbox1_wptr = dmub_dcn32_get_outbox1_wptr; 282 funcs->set_outbox1_rptr = dmub_dcn32_set_outbox1_rptr; 283 funcs->is_supported = dmub_dcn32_is_supported; 284 funcs->is_hw_init = dmub_dcn32_is_hw_init; 285 funcs->set_gpint = dmub_dcn32_set_gpint; 286 funcs->is_gpint_acked = dmub_dcn32_is_gpint_acked; 287 funcs->get_gpint_response = dmub_dcn32_get_gpint_response; 288 funcs->get_gpint_dataout = dmub_dcn32_get_gpint_dataout; 289 funcs->get_fw_status = dmub_dcn32_get_fw_boot_status; 290 funcs->enable_dmub_boot_options = dmub_dcn32_enable_dmub_boot_options; 291 funcs->skip_dmub_panel_power_sequence = dmub_dcn32_skip_dmub_panel_power_sequence; 292 293 /* outbox0 call stacks */ 294 funcs->setup_outbox0 = dmub_dcn32_setup_outbox0; 295 funcs->get_outbox0_wptr = dmub_dcn32_get_outbox0_wptr; 296 funcs->set_outbox0_rptr = dmub_dcn32_set_outbox0_rptr; 297 funcs->get_current_time = dmub_dcn32_get_current_time; 298 funcs->get_diagnostic_data = dmub_dcn32_get_diagnostic_data; 299 300 break; 301 302 default: 303 return false; 304 } 305 306 return true; 307 } 308 309 enum dmub_status dmub_srv_create(struct dmub_srv *dmub, 310 const struct dmub_srv_create_params *params) 311 { 312 enum dmub_status status = DMUB_STATUS_OK; 313 314 dmub_memset(dmub, 0, sizeof(*dmub)); 315 316 dmub->funcs = params->funcs; 317 dmub->user_ctx = params->user_ctx; 318 dmub->asic = params->asic; 319 dmub->fw_version = params->fw_version; 320 dmub->is_virtual = params->is_virtual; 321 322 /* Setup asic dependent hardware funcs. */ 323 if (!dmub_srv_hw_setup(dmub, params->asic)) { 324 status = DMUB_STATUS_INVALID; 325 goto cleanup; 326 } 327 328 /* Override (some) hardware funcs based on user params. */ 329 if (params->hw_funcs) { 330 if (params->hw_funcs->emul_get_inbox1_rptr) 331 dmub->hw_funcs.emul_get_inbox1_rptr = 332 params->hw_funcs->emul_get_inbox1_rptr; 333 334 if (params->hw_funcs->emul_set_inbox1_wptr) 335 dmub->hw_funcs.emul_set_inbox1_wptr = 336 params->hw_funcs->emul_set_inbox1_wptr; 337 338 if (params->hw_funcs->is_supported) 339 dmub->hw_funcs.is_supported = 340 params->hw_funcs->is_supported; 341 } 342 343 /* Sanity checks for required hw func pointers. */ 344 if (!dmub->hw_funcs.get_inbox1_rptr || 345 !dmub->hw_funcs.set_inbox1_wptr) { 346 status = DMUB_STATUS_INVALID; 347 goto cleanup; 348 } 349 350 cleanup: 351 if (status == DMUB_STATUS_OK) 352 dmub->sw_init = true; 353 else 354 dmub_srv_destroy(dmub); 355 356 return status; 357 } 358 359 void dmub_srv_destroy(struct dmub_srv *dmub) 360 { 361 dmub_memset(dmub, 0, sizeof(*dmub)); 362 } 363 364 enum dmub_status 365 dmub_srv_calc_region_info(struct dmub_srv *dmub, 366 const struct dmub_srv_region_params *params, 367 struct dmub_srv_region_info *out) 368 { 369 struct dmub_region *inst = &out->regions[DMUB_WINDOW_0_INST_CONST]; 370 struct dmub_region *stack = &out->regions[DMUB_WINDOW_1_STACK]; 371 struct dmub_region *data = &out->regions[DMUB_WINDOW_2_BSS_DATA]; 372 struct dmub_region *bios = &out->regions[DMUB_WINDOW_3_VBIOS]; 373 struct dmub_region *mail = &out->regions[DMUB_WINDOW_4_MAILBOX]; 374 struct dmub_region *trace_buff = &out->regions[DMUB_WINDOW_5_TRACEBUFF]; 375 struct dmub_region *fw_state = &out->regions[DMUB_WINDOW_6_FW_STATE]; 376 struct dmub_region *scratch_mem = &out->regions[DMUB_WINDOW_7_SCRATCH_MEM]; 377 const struct dmub_fw_meta_info *fw_info; 378 uint32_t fw_state_size = DMUB_FW_STATE_SIZE; 379 uint32_t trace_buffer_size = DMUB_TRACE_BUFFER_SIZE; 380 uint32_t scratch_mem_size = DMUB_SCRATCH_MEM_SIZE; 381 382 if (!dmub->sw_init) 383 return DMUB_STATUS_INVALID; 384 385 memset(out, 0, sizeof(*out)); 386 387 out->num_regions = DMUB_NUM_WINDOWS; 388 389 inst->base = 0x0; 390 inst->top = inst->base + params->inst_const_size; 391 392 data->base = dmub_align(inst->top, 256); 393 data->top = data->base + params->bss_data_size; 394 395 /* 396 * All cache windows below should be aligned to the size 397 * of the DMCUB cache line, 64 bytes. 398 */ 399 400 stack->base = dmub_align(data->top, 256); 401 stack->top = stack->base + DMUB_STACK_SIZE + DMUB_CONTEXT_SIZE; 402 403 bios->base = dmub_align(stack->top, 256); 404 bios->top = bios->base + params->vbios_size; 405 406 mail->base = dmub_align(bios->top, 256); 407 mail->top = mail->base + DMUB_MAILBOX_SIZE; 408 409 fw_info = dmub_get_fw_meta_info(params); 410 411 if (fw_info) { 412 fw_state_size = fw_info->fw_region_size; 413 trace_buffer_size = fw_info->trace_buffer_size; 414 415 /** 416 * If DM didn't fill in a version, then fill it in based on 417 * the firmware meta now that we have it. 418 * 419 * TODO: Make it easier for driver to extract this out to 420 * pass during creation. 421 */ 422 if (dmub->fw_version == 0) 423 dmub->fw_version = fw_info->fw_version; 424 } 425 426 trace_buff->base = dmub_align(mail->top, 256); 427 trace_buff->top = trace_buff->base + dmub_align(trace_buffer_size, 64); 428 429 fw_state->base = dmub_align(trace_buff->top, 256); 430 fw_state->top = fw_state->base + dmub_align(fw_state_size, 64); 431 432 scratch_mem->base = dmub_align(fw_state->top, 256); 433 scratch_mem->top = scratch_mem->base + dmub_align(scratch_mem_size, 64); 434 435 out->fb_size = dmub_align(scratch_mem->top, 4096); 436 437 return DMUB_STATUS_OK; 438 } 439 440 enum dmub_status dmub_srv_calc_fb_info(struct dmub_srv *dmub, 441 const struct dmub_srv_fb_params *params, 442 struct dmub_srv_fb_info *out) 443 { 444 uint8_t *cpu_base; 445 uint64_t gpu_base; 446 uint32_t i; 447 448 if (!dmub->sw_init) 449 return DMUB_STATUS_INVALID; 450 451 memset(out, 0, sizeof(*out)); 452 453 if (params->region_info->num_regions != DMUB_NUM_WINDOWS) 454 return DMUB_STATUS_INVALID; 455 456 cpu_base = (uint8_t *)params->cpu_addr; 457 gpu_base = params->gpu_addr; 458 459 for (i = 0; i < DMUB_NUM_WINDOWS; ++i) { 460 const struct dmub_region *reg = 461 ¶ms->region_info->regions[i]; 462 463 out->fb[i].cpu_addr = cpu_base + reg->base; 464 out->fb[i].gpu_addr = gpu_base + reg->base; 465 out->fb[i].size = reg->top - reg->base; 466 } 467 468 out->num_fb = DMUB_NUM_WINDOWS; 469 470 return DMUB_STATUS_OK; 471 } 472 473 enum dmub_status dmub_srv_has_hw_support(struct dmub_srv *dmub, 474 bool *is_supported) 475 { 476 *is_supported = false; 477 478 if (!dmub->sw_init) 479 return DMUB_STATUS_INVALID; 480 481 if (dmub->hw_funcs.is_supported) 482 *is_supported = dmub->hw_funcs.is_supported(dmub); 483 484 return DMUB_STATUS_OK; 485 } 486 487 enum dmub_status dmub_srv_is_hw_init(struct dmub_srv *dmub, bool *is_hw_init) 488 { 489 *is_hw_init = false; 490 491 if (!dmub->sw_init) 492 return DMUB_STATUS_INVALID; 493 494 if (!dmub->hw_init) 495 return DMUB_STATUS_OK; 496 497 if (dmub->hw_funcs.is_hw_init) 498 *is_hw_init = dmub->hw_funcs.is_hw_init(dmub); 499 500 return DMUB_STATUS_OK; 501 } 502 503 enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub, 504 const struct dmub_srv_hw_params *params) 505 { 506 struct dmub_fb *inst_fb = params->fb[DMUB_WINDOW_0_INST_CONST]; 507 struct dmub_fb *stack_fb = params->fb[DMUB_WINDOW_1_STACK]; 508 struct dmub_fb *data_fb = params->fb[DMUB_WINDOW_2_BSS_DATA]; 509 struct dmub_fb *bios_fb = params->fb[DMUB_WINDOW_3_VBIOS]; 510 struct dmub_fb *mail_fb = params->fb[DMUB_WINDOW_4_MAILBOX]; 511 struct dmub_fb *tracebuff_fb = params->fb[DMUB_WINDOW_5_TRACEBUFF]; 512 struct dmub_fb *fw_state_fb = params->fb[DMUB_WINDOW_6_FW_STATE]; 513 struct dmub_fb *scratch_mem_fb = params->fb[DMUB_WINDOW_7_SCRATCH_MEM]; 514 515 struct dmub_rb_init_params rb_params, outbox0_rb_params; 516 struct dmub_window cw0, cw1, cw2, cw3, cw4, cw5, cw6; 517 struct dmub_region inbox1, outbox1, outbox0; 518 519 if (!dmub->sw_init) 520 return DMUB_STATUS_INVALID; 521 522 if (!inst_fb || !stack_fb || !data_fb || !bios_fb || !mail_fb || 523 !tracebuff_fb || !fw_state_fb || !scratch_mem_fb) { 524 ASSERT(0); 525 return DMUB_STATUS_INVALID; 526 } 527 528 dmub->fb_base = params->fb_base; 529 dmub->fb_offset = params->fb_offset; 530 dmub->psp_version = params->psp_version; 531 532 if (dmub->hw_funcs.reset) 533 dmub->hw_funcs.reset(dmub); 534 535 cw0.offset.quad_part = inst_fb->gpu_addr; 536 cw0.region.base = DMUB_CW0_BASE; 537 cw0.region.top = cw0.region.base + inst_fb->size - 1; 538 539 cw1.offset.quad_part = stack_fb->gpu_addr; 540 cw1.region.base = DMUB_CW1_BASE; 541 cw1.region.top = cw1.region.base + stack_fb->size - 1; 542 543 if (params->fw_in_system_memory && dmub->hw_funcs.configure_dmub_in_system_memory) 544 dmub->hw_funcs.configure_dmub_in_system_memory(dmub); 545 546 if (params->load_inst_const && dmub->hw_funcs.backdoor_load) { 547 /** 548 * Read back all the instruction memory so we don't hang the 549 * DMCUB when backdoor loading if the write from x86 hasn't been 550 * flushed yet. This only occurs in backdoor loading. 551 */ 552 dmub_flush_buffer_mem(inst_fb); 553 554 if (params->fw_in_system_memory && dmub->hw_funcs.backdoor_load_zfb_mode) 555 dmub->hw_funcs.backdoor_load_zfb_mode(dmub, &cw0, &cw1); 556 else 557 dmub->hw_funcs.backdoor_load(dmub, &cw0, &cw1); 558 } 559 560 cw2.offset.quad_part = data_fb->gpu_addr; 561 cw2.region.base = DMUB_CW0_BASE + inst_fb->size; 562 cw2.region.top = cw2.region.base + data_fb->size; 563 564 cw3.offset.quad_part = bios_fb->gpu_addr; 565 cw3.region.base = DMUB_CW3_BASE; 566 cw3.region.top = cw3.region.base + bios_fb->size; 567 568 cw4.offset.quad_part = mail_fb->gpu_addr; 569 cw4.region.base = DMUB_CW4_BASE; 570 cw4.region.top = cw4.region.base + mail_fb->size; 571 572 /** 573 * Doubled the mailbox region to accomodate inbox and outbox. 574 * Note: Currently, currently total mailbox size is 16KB. It is split 575 * equally into 8KB between inbox and outbox. If this config is 576 * changed, then uncached base address configuration of outbox1 577 * has to be updated in funcs->setup_out_mailbox. 578 */ 579 inbox1.base = cw4.region.base; 580 inbox1.top = cw4.region.base + DMUB_RB_SIZE; 581 outbox1.base = inbox1.top; 582 outbox1.top = cw4.region.top; 583 584 cw5.offset.quad_part = tracebuff_fb->gpu_addr; 585 cw5.region.base = DMUB_CW5_BASE; 586 cw5.region.top = cw5.region.base + tracebuff_fb->size; 587 588 outbox0.base = DMUB_REGION5_BASE + TRACE_BUFFER_ENTRY_OFFSET; 589 outbox0.top = outbox0.base + tracebuff_fb->size - TRACE_BUFFER_ENTRY_OFFSET; 590 591 cw6.offset.quad_part = fw_state_fb->gpu_addr; 592 cw6.region.base = DMUB_CW6_BASE; 593 cw6.region.top = cw6.region.base + fw_state_fb->size; 594 595 dmub->fw_state = fw_state_fb->cpu_addr; 596 597 dmub->scratch_mem_fb = *scratch_mem_fb; 598 599 if (dmub->hw_funcs.setup_windows) 600 dmub->hw_funcs.setup_windows(dmub, &cw2, &cw3, &cw4, &cw5, &cw6); 601 602 if (dmub->hw_funcs.setup_outbox0) 603 dmub->hw_funcs.setup_outbox0(dmub, &outbox0); 604 605 if (dmub->hw_funcs.setup_mailbox) 606 dmub->hw_funcs.setup_mailbox(dmub, &inbox1); 607 if (dmub->hw_funcs.setup_out_mailbox) 608 dmub->hw_funcs.setup_out_mailbox(dmub, &outbox1); 609 610 dmub_memset(&rb_params, 0, sizeof(rb_params)); 611 rb_params.ctx = dmub; 612 rb_params.base_address = mail_fb->cpu_addr; 613 rb_params.capacity = DMUB_RB_SIZE; 614 dmub_rb_init(&dmub->inbox1_rb, &rb_params); 615 616 // Initialize outbox1 ring buffer 617 rb_params.ctx = dmub; 618 rb_params.base_address = (void *) ((uint8_t *) (mail_fb->cpu_addr) + DMUB_RB_SIZE); 619 rb_params.capacity = DMUB_RB_SIZE; 620 dmub_rb_init(&dmub->outbox1_rb, &rb_params); 621 622 dmub_memset(&outbox0_rb_params, 0, sizeof(outbox0_rb_params)); 623 outbox0_rb_params.ctx = dmub; 624 outbox0_rb_params.base_address = (void *)((uintptr_t)(tracebuff_fb->cpu_addr) + TRACE_BUFFER_ENTRY_OFFSET); 625 outbox0_rb_params.capacity = tracebuff_fb->size - dmub_align(TRACE_BUFFER_ENTRY_OFFSET, 64); 626 dmub_rb_init(&dmub->outbox0_rb, &outbox0_rb_params); 627 628 /* Report to DMUB what features are supported by current driver */ 629 if (dmub->hw_funcs.enable_dmub_boot_options) 630 dmub->hw_funcs.enable_dmub_boot_options(dmub, params); 631 632 if (dmub->hw_funcs.skip_dmub_panel_power_sequence) 633 dmub->hw_funcs.skip_dmub_panel_power_sequence(dmub, 634 params->skip_panel_power_sequence); 635 636 if (dmub->hw_funcs.reset_release) 637 dmub->hw_funcs.reset_release(dmub); 638 639 dmub->hw_init = true; 640 641 return DMUB_STATUS_OK; 642 } 643 644 enum dmub_status dmub_srv_hw_reset(struct dmub_srv *dmub) 645 { 646 if (!dmub->sw_init) 647 return DMUB_STATUS_INVALID; 648 649 if (dmub->hw_funcs.reset) 650 dmub->hw_funcs.reset(dmub); 651 652 dmub->hw_init = false; 653 654 return DMUB_STATUS_OK; 655 } 656 657 enum dmub_status dmub_srv_cmd_queue(struct dmub_srv *dmub, 658 const union dmub_rb_cmd *cmd) 659 { 660 if (!dmub->hw_init) 661 return DMUB_STATUS_INVALID; 662 663 if (dmub_rb_push_front(&dmub->inbox1_rb, cmd)) 664 return DMUB_STATUS_OK; 665 666 return DMUB_STATUS_QUEUE_FULL; 667 } 668 669 enum dmub_status dmub_srv_cmd_execute(struct dmub_srv *dmub) 670 { 671 struct dmub_rb flush_rb; 672 673 if (!dmub->hw_init) 674 return DMUB_STATUS_INVALID; 675 676 /** 677 * Read back all the queued commands to ensure that they've 678 * been flushed to framebuffer memory. Otherwise DMCUB might 679 * read back stale, fully invalid or partially invalid data. 680 */ 681 flush_rb = dmub->inbox1_rb; 682 flush_rb.rptr = dmub->inbox1_last_wptr; 683 dmub_rb_flush_pending(&flush_rb); 684 685 dmub->hw_funcs.set_inbox1_wptr(dmub, dmub->inbox1_rb.wrpt); 686 687 dmub->inbox1_last_wptr = dmub->inbox1_rb.wrpt; 688 689 return DMUB_STATUS_OK; 690 } 691 692 enum dmub_status dmub_srv_wait_for_auto_load(struct dmub_srv *dmub, 693 uint32_t timeout_us) 694 { 695 uint32_t i; 696 697 if (!dmub->hw_init) 698 return DMUB_STATUS_INVALID; 699 700 for (i = 0; i <= timeout_us; i += 100) { 701 union dmub_fw_boot_status status = dmub->hw_funcs.get_fw_status(dmub); 702 703 if (status.bits.dal_fw && status.bits.mailbox_rdy) 704 return DMUB_STATUS_OK; 705 706 udelay(100); 707 } 708 709 return DMUB_STATUS_TIMEOUT; 710 } 711 712 enum dmub_status dmub_srv_wait_for_phy_init(struct dmub_srv *dmub, 713 uint32_t timeout_us) 714 { 715 uint32_t i = 0; 716 717 if (!dmub->hw_init) 718 return DMUB_STATUS_INVALID; 719 720 if (!dmub->hw_funcs.is_phy_init) 721 return DMUB_STATUS_OK; 722 723 for (i = 0; i <= timeout_us; i += 10) { 724 if (dmub->hw_funcs.is_phy_init(dmub)) 725 return DMUB_STATUS_OK; 726 727 udelay(10); 728 } 729 730 return DMUB_STATUS_TIMEOUT; 731 } 732 733 enum dmub_status dmub_srv_wait_for_idle(struct dmub_srv *dmub, 734 uint32_t timeout_us) 735 { 736 uint32_t i, rptr; 737 738 if (!dmub->hw_init) 739 return DMUB_STATUS_INVALID; 740 741 for (i = 0; i <= timeout_us; ++i) { 742 rptr = dmub->hw_funcs.get_inbox1_rptr(dmub); 743 744 if (rptr > dmub->inbox1_rb.capacity) 745 return DMUB_STATUS_HW_FAILURE; 746 747 dmub->inbox1_rb.rptr = rptr; 748 749 if (dmub_rb_empty(&dmub->inbox1_rb)) 750 return DMUB_STATUS_OK; 751 752 udelay(1); 753 } 754 755 return DMUB_STATUS_TIMEOUT; 756 } 757 758 enum dmub_status 759 dmub_srv_send_gpint_command(struct dmub_srv *dmub, 760 enum dmub_gpint_command command_code, 761 uint16_t param, uint32_t timeout_us) 762 { 763 union dmub_gpint_data_register reg; 764 uint32_t i; 765 766 if (!dmub->sw_init) 767 return DMUB_STATUS_INVALID; 768 769 if (!dmub->hw_funcs.set_gpint) 770 return DMUB_STATUS_INVALID; 771 772 if (!dmub->hw_funcs.is_gpint_acked) 773 return DMUB_STATUS_INVALID; 774 775 reg.bits.status = 1; 776 reg.bits.command_code = command_code; 777 reg.bits.param = param; 778 779 dmub->hw_funcs.set_gpint(dmub, reg); 780 781 for (i = 0; i < timeout_us; ++i) { 782 udelay(1); 783 784 if (dmub->hw_funcs.is_gpint_acked(dmub, reg)) 785 return DMUB_STATUS_OK; 786 } 787 788 return DMUB_STATUS_TIMEOUT; 789 } 790 791 enum dmub_status dmub_srv_get_gpint_response(struct dmub_srv *dmub, 792 uint32_t *response) 793 { 794 *response = 0; 795 796 if (!dmub->sw_init) 797 return DMUB_STATUS_INVALID; 798 799 if (!dmub->hw_funcs.get_gpint_response) 800 return DMUB_STATUS_INVALID; 801 802 *response = dmub->hw_funcs.get_gpint_response(dmub); 803 804 return DMUB_STATUS_OK; 805 } 806 807 enum dmub_status dmub_srv_get_gpint_dataout(struct dmub_srv *dmub, 808 uint32_t *dataout) 809 { 810 *dataout = 0; 811 812 if (!dmub->sw_init) 813 return DMUB_STATUS_INVALID; 814 815 if (!dmub->hw_funcs.get_gpint_dataout) 816 return DMUB_STATUS_INVALID; 817 818 *dataout = dmub->hw_funcs.get_gpint_dataout(dmub); 819 820 return DMUB_STATUS_OK; 821 } 822 823 enum dmub_status dmub_srv_get_fw_boot_status(struct dmub_srv *dmub, 824 union dmub_fw_boot_status *status) 825 { 826 status->all = 0; 827 828 if (!dmub->sw_init) 829 return DMUB_STATUS_INVALID; 830 831 if (dmub->hw_funcs.get_fw_status) 832 *status = dmub->hw_funcs.get_fw_status(dmub); 833 834 return DMUB_STATUS_OK; 835 } 836 837 enum dmub_status dmub_srv_cmd_with_reply_data(struct dmub_srv *dmub, 838 union dmub_rb_cmd *cmd) 839 { 840 enum dmub_status status = DMUB_STATUS_OK; 841 842 // Queue command 843 status = dmub_srv_cmd_queue(dmub, cmd); 844 845 if (status != DMUB_STATUS_OK) 846 return status; 847 848 // Execute command 849 status = dmub_srv_cmd_execute(dmub); 850 851 if (status != DMUB_STATUS_OK) 852 return status; 853 854 // Wait for DMUB to process command 855 status = dmub_srv_wait_for_idle(dmub, 100000); 856 857 if (status != DMUB_STATUS_OK) 858 return status; 859 860 // Copy data back from ring buffer into command 861 dmub_rb_get_return_data(&dmub->inbox1_rb, cmd); 862 863 return status; 864 } 865 866 static inline bool dmub_rb_out_trace_buffer_front(struct dmub_rb *rb, 867 void *entry) 868 { 869 const uint64_t *src = (const uint64_t *)(rb->base_address) + rb->rptr / sizeof(uint64_t); 870 uint64_t *dst = (uint64_t *)entry; 871 uint8_t i; 872 uint8_t loop_count; 873 874 if (rb->rptr == rb->wrpt) 875 return false; 876 877 loop_count = sizeof(struct dmcub_trace_buf_entry) / sizeof(uint64_t); 878 // copying data 879 for (i = 0; i < loop_count; i++) 880 *dst++ = *src++; 881 882 rb->rptr += sizeof(struct dmcub_trace_buf_entry); 883 884 rb->rptr %= rb->capacity; 885 886 return true; 887 } 888 889 bool dmub_srv_get_outbox0_msg(struct dmub_srv *dmub, struct dmcub_trace_buf_entry *entry) 890 { 891 dmub->outbox0_rb.wrpt = dmub->hw_funcs.get_outbox0_wptr(dmub); 892 893 return dmub_rb_out_trace_buffer_front(&dmub->outbox0_rb, (void *)entry); 894 } 895 896 bool dmub_srv_get_diagnostic_data(struct dmub_srv *dmub, struct dmub_diagnostic_data *diag_data) 897 { 898 if (!dmub || !dmub->hw_funcs.get_diagnostic_data || !diag_data) 899 return false; 900 dmub->hw_funcs.get_diagnostic_data(dmub, diag_data); 901 return true; 902 } 903 904 bool dmub_srv_should_detect(struct dmub_srv *dmub) 905 { 906 if (!dmub->hw_init || !dmub->hw_funcs.should_detect) 907 return false; 908 909 return dmub->hw_funcs.should_detect(dmub); 910 } 911 912 enum dmub_status dmub_srv_clear_inbox0_ack(struct dmub_srv *dmub) 913 { 914 if (!dmub->hw_init || !dmub->hw_funcs.clear_inbox0_ack_register) 915 return DMUB_STATUS_INVALID; 916 917 dmub->hw_funcs.clear_inbox0_ack_register(dmub); 918 return DMUB_STATUS_OK; 919 } 920 921 enum dmub_status dmub_srv_wait_for_inbox0_ack(struct dmub_srv *dmub, uint32_t timeout_us) 922 { 923 uint32_t i = 0; 924 uint32_t ack = 0; 925 926 if (!dmub->hw_init || !dmub->hw_funcs.read_inbox0_ack_register) 927 return DMUB_STATUS_INVALID; 928 929 for (i = 0; i <= timeout_us; i++) { 930 ack = dmub->hw_funcs.read_inbox0_ack_register(dmub); 931 if (ack) 932 return DMUB_STATUS_OK; 933 } 934 return DMUB_STATUS_TIMEOUT; 935 } 936 937 enum dmub_status dmub_srv_send_inbox0_cmd(struct dmub_srv *dmub, 938 union dmub_inbox0_data_register data) 939 { 940 if (!dmub->hw_init || !dmub->hw_funcs.send_inbox0_cmd) 941 return DMUB_STATUS_INVALID; 942 943 dmub->hw_funcs.send_inbox0_cmd(dmub, data); 944 return DMUB_STATUS_OK; 945 } 946