1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright (C) 2018 Western Digital Corporation 3 4 #include <linux/err.h> 5 #include <linux/string.h> 6 #include <linux/bitfield.h> 7 #include <asm/unaligned.h> 8 9 #include <ufs/ufs.h> 10 #include "ufs-sysfs.h" 11 #include "ufshcd-priv.h" 12 13 static const char *ufshcd_uic_link_state_to_string( 14 enum uic_link_state state) 15 { 16 switch (state) { 17 case UIC_LINK_OFF_STATE: return "OFF"; 18 case UIC_LINK_ACTIVE_STATE: return "ACTIVE"; 19 case UIC_LINK_HIBERN8_STATE: return "HIBERN8"; 20 case UIC_LINK_BROKEN_STATE: return "BROKEN"; 21 default: return "UNKNOWN"; 22 } 23 } 24 25 static const char *ufshcd_ufs_dev_pwr_mode_to_string( 26 enum ufs_dev_pwr_mode state) 27 { 28 switch (state) { 29 case UFS_ACTIVE_PWR_MODE: return "ACTIVE"; 30 case UFS_SLEEP_PWR_MODE: return "SLEEP"; 31 case UFS_POWERDOWN_PWR_MODE: return "POWERDOWN"; 32 case UFS_DEEPSLEEP_PWR_MODE: return "DEEPSLEEP"; 33 default: return "UNKNOWN"; 34 } 35 } 36 37 static inline ssize_t ufs_sysfs_pm_lvl_store(struct device *dev, 38 struct device_attribute *attr, 39 const char *buf, size_t count, 40 bool rpm) 41 { 42 struct ufs_hba *hba = dev_get_drvdata(dev); 43 struct ufs_dev_info *dev_info = &hba->dev_info; 44 unsigned long flags, value; 45 46 if (kstrtoul(buf, 0, &value)) 47 return -EINVAL; 48 49 if (value >= UFS_PM_LVL_MAX) 50 return -EINVAL; 51 52 if (ufs_pm_lvl_states[value].dev_state == UFS_DEEPSLEEP_PWR_MODE && 53 (!(hba->caps & UFSHCD_CAP_DEEPSLEEP) || 54 !(dev_info->wspecversion >= 0x310))) 55 return -EINVAL; 56 57 spin_lock_irqsave(hba->host->host_lock, flags); 58 if (rpm) 59 hba->rpm_lvl = value; 60 else 61 hba->spm_lvl = value; 62 spin_unlock_irqrestore(hba->host->host_lock, flags); 63 return count; 64 } 65 66 static ssize_t rpm_lvl_show(struct device *dev, 67 struct device_attribute *attr, char *buf) 68 { 69 struct ufs_hba *hba = dev_get_drvdata(dev); 70 71 return sysfs_emit(buf, "%d\n", hba->rpm_lvl); 72 } 73 74 static ssize_t rpm_lvl_store(struct device *dev, 75 struct device_attribute *attr, const char *buf, size_t count) 76 { 77 return ufs_sysfs_pm_lvl_store(dev, attr, buf, count, true); 78 } 79 80 static ssize_t rpm_target_dev_state_show(struct device *dev, 81 struct device_attribute *attr, char *buf) 82 { 83 struct ufs_hba *hba = dev_get_drvdata(dev); 84 85 return sysfs_emit(buf, "%s\n", ufshcd_ufs_dev_pwr_mode_to_string( 86 ufs_pm_lvl_states[hba->rpm_lvl].dev_state)); 87 } 88 89 static ssize_t rpm_target_link_state_show(struct device *dev, 90 struct device_attribute *attr, char *buf) 91 { 92 struct ufs_hba *hba = dev_get_drvdata(dev); 93 94 return sysfs_emit(buf, "%s\n", ufshcd_uic_link_state_to_string( 95 ufs_pm_lvl_states[hba->rpm_lvl].link_state)); 96 } 97 98 static ssize_t spm_lvl_show(struct device *dev, 99 struct device_attribute *attr, char *buf) 100 { 101 struct ufs_hba *hba = dev_get_drvdata(dev); 102 103 return sysfs_emit(buf, "%d\n", hba->spm_lvl); 104 } 105 106 static ssize_t spm_lvl_store(struct device *dev, 107 struct device_attribute *attr, const char *buf, size_t count) 108 { 109 return ufs_sysfs_pm_lvl_store(dev, attr, buf, count, false); 110 } 111 112 static ssize_t spm_target_dev_state_show(struct device *dev, 113 struct device_attribute *attr, char *buf) 114 { 115 struct ufs_hba *hba = dev_get_drvdata(dev); 116 117 return sysfs_emit(buf, "%s\n", ufshcd_ufs_dev_pwr_mode_to_string( 118 ufs_pm_lvl_states[hba->spm_lvl].dev_state)); 119 } 120 121 static ssize_t spm_target_link_state_show(struct device *dev, 122 struct device_attribute *attr, char *buf) 123 { 124 struct ufs_hba *hba = dev_get_drvdata(dev); 125 126 return sysfs_emit(buf, "%s\n", ufshcd_uic_link_state_to_string( 127 ufs_pm_lvl_states[hba->spm_lvl].link_state)); 128 } 129 130 /* Convert Auto-Hibernate Idle Timer register value to microseconds */ 131 static int ufshcd_ahit_to_us(u32 ahit) 132 { 133 int timer = FIELD_GET(UFSHCI_AHIBERN8_TIMER_MASK, ahit); 134 int scale = FIELD_GET(UFSHCI_AHIBERN8_SCALE_MASK, ahit); 135 136 for (; scale > 0; --scale) 137 timer *= UFSHCI_AHIBERN8_SCALE_FACTOR; 138 139 return timer; 140 } 141 142 /* Convert microseconds to Auto-Hibernate Idle Timer register value */ 143 static u32 ufshcd_us_to_ahit(unsigned int timer) 144 { 145 unsigned int scale; 146 147 for (scale = 0; timer > UFSHCI_AHIBERN8_TIMER_MASK; ++scale) 148 timer /= UFSHCI_AHIBERN8_SCALE_FACTOR; 149 150 return FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, timer) | 151 FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, scale); 152 } 153 154 static ssize_t auto_hibern8_show(struct device *dev, 155 struct device_attribute *attr, char *buf) 156 { 157 u32 ahit; 158 int ret; 159 struct ufs_hba *hba = dev_get_drvdata(dev); 160 161 if (!ufshcd_is_auto_hibern8_supported(hba)) 162 return -EOPNOTSUPP; 163 164 down(&hba->host_sem); 165 if (!ufshcd_is_user_access_allowed(hba)) { 166 ret = -EBUSY; 167 goto out; 168 } 169 170 pm_runtime_get_sync(hba->dev); 171 ufshcd_hold(hba, false); 172 ahit = ufshcd_readl(hba, REG_AUTO_HIBERNATE_IDLE_TIMER); 173 ufshcd_release(hba); 174 pm_runtime_put_sync(hba->dev); 175 176 ret = sysfs_emit(buf, "%d\n", ufshcd_ahit_to_us(ahit)); 177 178 out: 179 up(&hba->host_sem); 180 return ret; 181 } 182 183 static ssize_t auto_hibern8_store(struct device *dev, 184 struct device_attribute *attr, 185 const char *buf, size_t count) 186 { 187 struct ufs_hba *hba = dev_get_drvdata(dev); 188 unsigned int timer; 189 int ret = 0; 190 191 if (!ufshcd_is_auto_hibern8_supported(hba)) 192 return -EOPNOTSUPP; 193 194 if (kstrtouint(buf, 0, &timer)) 195 return -EINVAL; 196 197 if (timer > UFSHCI_AHIBERN8_MAX) 198 return -EINVAL; 199 200 down(&hba->host_sem); 201 if (!ufshcd_is_user_access_allowed(hba)) { 202 ret = -EBUSY; 203 goto out; 204 } 205 206 ufshcd_auto_hibern8_update(hba, ufshcd_us_to_ahit(timer)); 207 208 out: 209 up(&hba->host_sem); 210 return ret ? ret : count; 211 } 212 213 static ssize_t wb_on_show(struct device *dev, struct device_attribute *attr, 214 char *buf) 215 { 216 struct ufs_hba *hba = dev_get_drvdata(dev); 217 218 return sysfs_emit(buf, "%d\n", hba->dev_info.wb_enabled); 219 } 220 221 static ssize_t wb_on_store(struct device *dev, struct device_attribute *attr, 222 const char *buf, size_t count) 223 { 224 struct ufs_hba *hba = dev_get_drvdata(dev); 225 unsigned int wb_enable; 226 ssize_t res; 227 228 if (!ufshcd_is_wb_allowed(hba) || (ufshcd_is_clkscaling_supported(hba) 229 && ufshcd_enable_wb_if_scaling_up(hba))) { 230 /* 231 * If the platform supports UFSHCD_CAP_CLK_SCALING, turn WB 232 * on/off will be done while clock scaling up/down. 233 */ 234 dev_warn(dev, "It is not allowed to configure WB!\n"); 235 return -EOPNOTSUPP; 236 } 237 238 if (kstrtouint(buf, 0, &wb_enable)) 239 return -EINVAL; 240 241 if (wb_enable != 0 && wb_enable != 1) 242 return -EINVAL; 243 244 down(&hba->host_sem); 245 if (!ufshcd_is_user_access_allowed(hba)) { 246 res = -EBUSY; 247 goto out; 248 } 249 250 ufshcd_rpm_get_sync(hba); 251 res = ufshcd_wb_toggle(hba, wb_enable); 252 ufshcd_rpm_put_sync(hba); 253 out: 254 up(&hba->host_sem); 255 return res < 0 ? res : count; 256 } 257 258 static ssize_t enable_wb_buf_flush_show(struct device *dev, 259 struct device_attribute *attr, 260 char *buf) 261 { 262 struct ufs_hba *hba = dev_get_drvdata(dev); 263 264 return sysfs_emit(buf, "%d\n", hba->dev_info.wb_buf_flush_enabled); 265 } 266 267 static ssize_t enable_wb_buf_flush_store(struct device *dev, 268 struct device_attribute *attr, 269 const char *buf, size_t count) 270 { 271 struct ufs_hba *hba = dev_get_drvdata(dev); 272 unsigned int enable_wb_buf_flush; 273 ssize_t res; 274 275 if (!ufshcd_is_wb_buf_flush_allowed(hba)) { 276 dev_warn(dev, "It is not allowed to configure WB buf flushing!\n"); 277 return -EOPNOTSUPP; 278 } 279 280 if (kstrtouint(buf, 0, &enable_wb_buf_flush)) 281 return -EINVAL; 282 283 if (enable_wb_buf_flush != 0 && enable_wb_buf_flush != 1) 284 return -EINVAL; 285 286 down(&hba->host_sem); 287 if (!ufshcd_is_user_access_allowed(hba)) { 288 res = -EBUSY; 289 goto out; 290 } 291 292 ufshcd_rpm_get_sync(hba); 293 res = ufshcd_wb_toggle_buf_flush(hba, enable_wb_buf_flush); 294 ufshcd_rpm_put_sync(hba); 295 296 out: 297 up(&hba->host_sem); 298 return res < 0 ? res : count; 299 } 300 301 static DEVICE_ATTR_RW(rpm_lvl); 302 static DEVICE_ATTR_RO(rpm_target_dev_state); 303 static DEVICE_ATTR_RO(rpm_target_link_state); 304 static DEVICE_ATTR_RW(spm_lvl); 305 static DEVICE_ATTR_RO(spm_target_dev_state); 306 static DEVICE_ATTR_RO(spm_target_link_state); 307 static DEVICE_ATTR_RW(auto_hibern8); 308 static DEVICE_ATTR_RW(wb_on); 309 static DEVICE_ATTR_RW(enable_wb_buf_flush); 310 311 static struct attribute *ufs_sysfs_ufshcd_attrs[] = { 312 &dev_attr_rpm_lvl.attr, 313 &dev_attr_rpm_target_dev_state.attr, 314 &dev_attr_rpm_target_link_state.attr, 315 &dev_attr_spm_lvl.attr, 316 &dev_attr_spm_target_dev_state.attr, 317 &dev_attr_spm_target_link_state.attr, 318 &dev_attr_auto_hibern8.attr, 319 &dev_attr_wb_on.attr, 320 &dev_attr_enable_wb_buf_flush.attr, 321 NULL 322 }; 323 324 static const struct attribute_group ufs_sysfs_default_group = { 325 .attrs = ufs_sysfs_ufshcd_attrs, 326 }; 327 328 static ssize_t clock_scaling_show(struct device *dev, struct device_attribute *attr, 329 char *buf) 330 { 331 struct ufs_hba *hba = dev_get_drvdata(dev); 332 333 return sysfs_emit(buf, "%d\n", ufshcd_is_clkscaling_supported(hba)); 334 } 335 336 static ssize_t write_booster_show(struct device *dev, struct device_attribute *attr, 337 char *buf) 338 { 339 struct ufs_hba *hba = dev_get_drvdata(dev); 340 341 return sysfs_emit(buf, "%d\n", ufshcd_is_wb_allowed(hba)); 342 } 343 344 static DEVICE_ATTR_RO(clock_scaling); 345 static DEVICE_ATTR_RO(write_booster); 346 347 /* 348 * See Documentation/ABI/testing/sysfs-driver-ufs for the semantics of this 349 * group. 350 */ 351 static struct attribute *ufs_sysfs_capabilities_attrs[] = { 352 &dev_attr_clock_scaling.attr, 353 &dev_attr_write_booster.attr, 354 NULL 355 }; 356 357 static const struct attribute_group ufs_sysfs_capabilities_group = { 358 .name = "capabilities", 359 .attrs = ufs_sysfs_capabilities_attrs, 360 }; 361 362 static ssize_t monitor_enable_show(struct device *dev, 363 struct device_attribute *attr, char *buf) 364 { 365 struct ufs_hba *hba = dev_get_drvdata(dev); 366 367 return sysfs_emit(buf, "%d\n", hba->monitor.enabled); 368 } 369 370 static ssize_t monitor_enable_store(struct device *dev, 371 struct device_attribute *attr, 372 const char *buf, size_t count) 373 { 374 struct ufs_hba *hba = dev_get_drvdata(dev); 375 unsigned long value, flags; 376 377 if (kstrtoul(buf, 0, &value)) 378 return -EINVAL; 379 380 value = !!value; 381 spin_lock_irqsave(hba->host->host_lock, flags); 382 if (value == hba->monitor.enabled) 383 goto out_unlock; 384 385 if (!value) { 386 memset(&hba->monitor, 0, sizeof(hba->monitor)); 387 } else { 388 hba->monitor.enabled = true; 389 hba->monitor.enabled_ts = ktime_get(); 390 } 391 392 out_unlock: 393 spin_unlock_irqrestore(hba->host->host_lock, flags); 394 return count; 395 } 396 397 static ssize_t monitor_chunk_size_show(struct device *dev, 398 struct device_attribute *attr, char *buf) 399 { 400 struct ufs_hba *hba = dev_get_drvdata(dev); 401 402 return sysfs_emit(buf, "%lu\n", hba->monitor.chunk_size); 403 } 404 405 static ssize_t monitor_chunk_size_store(struct device *dev, 406 struct device_attribute *attr, 407 const char *buf, size_t count) 408 { 409 struct ufs_hba *hba = dev_get_drvdata(dev); 410 unsigned long value, flags; 411 412 if (kstrtoul(buf, 0, &value)) 413 return -EINVAL; 414 415 spin_lock_irqsave(hba->host->host_lock, flags); 416 /* Only allow chunk size change when monitor is disabled */ 417 if (!hba->monitor.enabled) 418 hba->monitor.chunk_size = value; 419 spin_unlock_irqrestore(hba->host->host_lock, flags); 420 return count; 421 } 422 423 static ssize_t read_total_sectors_show(struct device *dev, 424 struct device_attribute *attr, char *buf) 425 { 426 struct ufs_hba *hba = dev_get_drvdata(dev); 427 428 return sysfs_emit(buf, "%lu\n", hba->monitor.nr_sec_rw[READ]); 429 } 430 431 static ssize_t read_total_busy_show(struct device *dev, 432 struct device_attribute *attr, char *buf) 433 { 434 struct ufs_hba *hba = dev_get_drvdata(dev); 435 436 return sysfs_emit(buf, "%llu\n", 437 ktime_to_us(hba->monitor.total_busy[READ])); 438 } 439 440 static ssize_t read_nr_requests_show(struct device *dev, 441 struct device_attribute *attr, char *buf) 442 { 443 struct ufs_hba *hba = dev_get_drvdata(dev); 444 445 return sysfs_emit(buf, "%lu\n", hba->monitor.nr_req[READ]); 446 } 447 448 static ssize_t read_req_latency_avg_show(struct device *dev, 449 struct device_attribute *attr, 450 char *buf) 451 { 452 struct ufs_hba *hba = dev_get_drvdata(dev); 453 struct ufs_hba_monitor *m = &hba->monitor; 454 455 return sysfs_emit(buf, "%llu\n", div_u64(ktime_to_us(m->lat_sum[READ]), 456 m->nr_req[READ])); 457 } 458 459 static ssize_t read_req_latency_max_show(struct device *dev, 460 struct device_attribute *attr, 461 char *buf) 462 { 463 struct ufs_hba *hba = dev_get_drvdata(dev); 464 465 return sysfs_emit(buf, "%llu\n", 466 ktime_to_us(hba->monitor.lat_max[READ])); 467 } 468 469 static ssize_t read_req_latency_min_show(struct device *dev, 470 struct device_attribute *attr, 471 char *buf) 472 { 473 struct ufs_hba *hba = dev_get_drvdata(dev); 474 475 return sysfs_emit(buf, "%llu\n", 476 ktime_to_us(hba->monitor.lat_min[READ])); 477 } 478 479 static ssize_t read_req_latency_sum_show(struct device *dev, 480 struct device_attribute *attr, 481 char *buf) 482 { 483 struct ufs_hba *hba = dev_get_drvdata(dev); 484 485 return sysfs_emit(buf, "%llu\n", 486 ktime_to_us(hba->monitor.lat_sum[READ])); 487 } 488 489 static ssize_t write_total_sectors_show(struct device *dev, 490 struct device_attribute *attr, 491 char *buf) 492 { 493 struct ufs_hba *hba = dev_get_drvdata(dev); 494 495 return sysfs_emit(buf, "%lu\n", hba->monitor.nr_sec_rw[WRITE]); 496 } 497 498 static ssize_t write_total_busy_show(struct device *dev, 499 struct device_attribute *attr, char *buf) 500 { 501 struct ufs_hba *hba = dev_get_drvdata(dev); 502 503 return sysfs_emit(buf, "%llu\n", 504 ktime_to_us(hba->monitor.total_busy[WRITE])); 505 } 506 507 static ssize_t write_nr_requests_show(struct device *dev, 508 struct device_attribute *attr, char *buf) 509 { 510 struct ufs_hba *hba = dev_get_drvdata(dev); 511 512 return sysfs_emit(buf, "%lu\n", hba->monitor.nr_req[WRITE]); 513 } 514 515 static ssize_t write_req_latency_avg_show(struct device *dev, 516 struct device_attribute *attr, 517 char *buf) 518 { 519 struct ufs_hba *hba = dev_get_drvdata(dev); 520 struct ufs_hba_monitor *m = &hba->monitor; 521 522 return sysfs_emit(buf, "%llu\n", div_u64(ktime_to_us(m->lat_sum[WRITE]), 523 m->nr_req[WRITE])); 524 } 525 526 static ssize_t write_req_latency_max_show(struct device *dev, 527 struct device_attribute *attr, 528 char *buf) 529 { 530 struct ufs_hba *hba = dev_get_drvdata(dev); 531 532 return sysfs_emit(buf, "%llu\n", 533 ktime_to_us(hba->monitor.lat_max[WRITE])); 534 } 535 536 static ssize_t write_req_latency_min_show(struct device *dev, 537 struct device_attribute *attr, 538 char *buf) 539 { 540 struct ufs_hba *hba = dev_get_drvdata(dev); 541 542 return sysfs_emit(buf, "%llu\n", 543 ktime_to_us(hba->monitor.lat_min[WRITE])); 544 } 545 546 static ssize_t write_req_latency_sum_show(struct device *dev, 547 struct device_attribute *attr, 548 char *buf) 549 { 550 struct ufs_hba *hba = dev_get_drvdata(dev); 551 552 return sysfs_emit(buf, "%llu\n", 553 ktime_to_us(hba->monitor.lat_sum[WRITE])); 554 } 555 556 static DEVICE_ATTR_RW(monitor_enable); 557 static DEVICE_ATTR_RW(monitor_chunk_size); 558 static DEVICE_ATTR_RO(read_total_sectors); 559 static DEVICE_ATTR_RO(read_total_busy); 560 static DEVICE_ATTR_RO(read_nr_requests); 561 static DEVICE_ATTR_RO(read_req_latency_avg); 562 static DEVICE_ATTR_RO(read_req_latency_max); 563 static DEVICE_ATTR_RO(read_req_latency_min); 564 static DEVICE_ATTR_RO(read_req_latency_sum); 565 static DEVICE_ATTR_RO(write_total_sectors); 566 static DEVICE_ATTR_RO(write_total_busy); 567 static DEVICE_ATTR_RO(write_nr_requests); 568 static DEVICE_ATTR_RO(write_req_latency_avg); 569 static DEVICE_ATTR_RO(write_req_latency_max); 570 static DEVICE_ATTR_RO(write_req_latency_min); 571 static DEVICE_ATTR_RO(write_req_latency_sum); 572 573 static struct attribute *ufs_sysfs_monitor_attrs[] = { 574 &dev_attr_monitor_enable.attr, 575 &dev_attr_monitor_chunk_size.attr, 576 &dev_attr_read_total_sectors.attr, 577 &dev_attr_read_total_busy.attr, 578 &dev_attr_read_nr_requests.attr, 579 &dev_attr_read_req_latency_avg.attr, 580 &dev_attr_read_req_latency_max.attr, 581 &dev_attr_read_req_latency_min.attr, 582 &dev_attr_read_req_latency_sum.attr, 583 &dev_attr_write_total_sectors.attr, 584 &dev_attr_write_total_busy.attr, 585 &dev_attr_write_nr_requests.attr, 586 &dev_attr_write_req_latency_avg.attr, 587 &dev_attr_write_req_latency_max.attr, 588 &dev_attr_write_req_latency_min.attr, 589 &dev_attr_write_req_latency_sum.attr, 590 NULL 591 }; 592 593 static const struct attribute_group ufs_sysfs_monitor_group = { 594 .name = "monitor", 595 .attrs = ufs_sysfs_monitor_attrs, 596 }; 597 598 static ssize_t ufs_sysfs_read_desc_param(struct ufs_hba *hba, 599 enum desc_idn desc_id, 600 u8 desc_index, 601 u8 param_offset, 602 u8 *sysfs_buf, 603 u8 param_size) 604 { 605 u8 desc_buf[8] = {0}; 606 int ret; 607 608 if (param_size > 8) 609 return -EINVAL; 610 611 down(&hba->host_sem); 612 if (!ufshcd_is_user_access_allowed(hba)) { 613 ret = -EBUSY; 614 goto out; 615 } 616 617 ufshcd_rpm_get_sync(hba); 618 ret = ufshcd_read_desc_param(hba, desc_id, desc_index, 619 param_offset, desc_buf, param_size); 620 ufshcd_rpm_put_sync(hba); 621 if (ret) { 622 ret = -EINVAL; 623 goto out; 624 } 625 626 switch (param_size) { 627 case 1: 628 ret = sysfs_emit(sysfs_buf, "0x%02X\n", *desc_buf); 629 break; 630 case 2: 631 ret = sysfs_emit(sysfs_buf, "0x%04X\n", 632 get_unaligned_be16(desc_buf)); 633 break; 634 case 4: 635 ret = sysfs_emit(sysfs_buf, "0x%08X\n", 636 get_unaligned_be32(desc_buf)); 637 break; 638 case 8: 639 ret = sysfs_emit(sysfs_buf, "0x%016llX\n", 640 get_unaligned_be64(desc_buf)); 641 break; 642 } 643 644 out: 645 up(&hba->host_sem); 646 return ret; 647 } 648 649 #define UFS_DESC_PARAM(_name, _puname, _duname, _size) \ 650 static ssize_t _name##_show(struct device *dev, \ 651 struct device_attribute *attr, char *buf) \ 652 { \ 653 struct ufs_hba *hba = dev_get_drvdata(dev); \ 654 return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_##_duname, \ 655 0, _duname##_DESC_PARAM##_puname, buf, _size); \ 656 } \ 657 static DEVICE_ATTR_RO(_name) 658 659 #define UFS_DEVICE_DESC_PARAM(_name, _uname, _size) \ 660 UFS_DESC_PARAM(_name, _uname, DEVICE, _size) 661 662 UFS_DEVICE_DESC_PARAM(device_type, _DEVICE_TYPE, 1); 663 UFS_DEVICE_DESC_PARAM(device_class, _DEVICE_CLASS, 1); 664 UFS_DEVICE_DESC_PARAM(device_sub_class, _DEVICE_SUB_CLASS, 1); 665 UFS_DEVICE_DESC_PARAM(protocol, _PRTCL, 1); 666 UFS_DEVICE_DESC_PARAM(number_of_luns, _NUM_LU, 1); 667 UFS_DEVICE_DESC_PARAM(number_of_wluns, _NUM_WLU, 1); 668 UFS_DEVICE_DESC_PARAM(boot_enable, _BOOT_ENBL, 1); 669 UFS_DEVICE_DESC_PARAM(descriptor_access_enable, _DESC_ACCSS_ENBL, 1); 670 UFS_DEVICE_DESC_PARAM(initial_power_mode, _INIT_PWR_MODE, 1); 671 UFS_DEVICE_DESC_PARAM(high_priority_lun, _HIGH_PR_LUN, 1); 672 UFS_DEVICE_DESC_PARAM(secure_removal_type, _SEC_RMV_TYPE, 1); 673 UFS_DEVICE_DESC_PARAM(support_security_lun, _SEC_LU, 1); 674 UFS_DEVICE_DESC_PARAM(bkops_termination_latency, _BKOP_TERM_LT, 1); 675 UFS_DEVICE_DESC_PARAM(initial_active_icc_level, _ACTVE_ICC_LVL, 1); 676 UFS_DEVICE_DESC_PARAM(specification_version, _SPEC_VER, 2); 677 UFS_DEVICE_DESC_PARAM(manufacturing_date, _MANF_DATE, 2); 678 UFS_DEVICE_DESC_PARAM(manufacturer_id, _MANF_ID, 2); 679 UFS_DEVICE_DESC_PARAM(rtt_capability, _RTT_CAP, 1); 680 UFS_DEVICE_DESC_PARAM(rtc_update, _FRQ_RTC, 2); 681 UFS_DEVICE_DESC_PARAM(ufs_features, _UFS_FEAT, 1); 682 UFS_DEVICE_DESC_PARAM(ffu_timeout, _FFU_TMT, 1); 683 UFS_DEVICE_DESC_PARAM(queue_depth, _Q_DPTH, 1); 684 UFS_DEVICE_DESC_PARAM(device_version, _DEV_VER, 2); 685 UFS_DEVICE_DESC_PARAM(number_of_secure_wpa, _NUM_SEC_WPA, 1); 686 UFS_DEVICE_DESC_PARAM(psa_max_data_size, _PSA_MAX_DATA, 4); 687 UFS_DEVICE_DESC_PARAM(psa_state_timeout, _PSA_TMT, 1); 688 UFS_DEVICE_DESC_PARAM(hpb_version, _HPB_VER, 2); 689 UFS_DEVICE_DESC_PARAM(hpb_control, _HPB_CONTROL, 1); 690 UFS_DEVICE_DESC_PARAM(ext_feature_sup, _EXT_UFS_FEATURE_SUP, 4); 691 UFS_DEVICE_DESC_PARAM(wb_presv_us_en, _WB_PRESRV_USRSPC_EN, 1); 692 UFS_DEVICE_DESC_PARAM(wb_type, _WB_TYPE, 1); 693 UFS_DEVICE_DESC_PARAM(wb_shared_alloc_units, _WB_SHARED_ALLOC_UNITS, 4); 694 695 static struct attribute *ufs_sysfs_device_descriptor[] = { 696 &dev_attr_device_type.attr, 697 &dev_attr_device_class.attr, 698 &dev_attr_device_sub_class.attr, 699 &dev_attr_protocol.attr, 700 &dev_attr_number_of_luns.attr, 701 &dev_attr_number_of_wluns.attr, 702 &dev_attr_boot_enable.attr, 703 &dev_attr_descriptor_access_enable.attr, 704 &dev_attr_initial_power_mode.attr, 705 &dev_attr_high_priority_lun.attr, 706 &dev_attr_secure_removal_type.attr, 707 &dev_attr_support_security_lun.attr, 708 &dev_attr_bkops_termination_latency.attr, 709 &dev_attr_initial_active_icc_level.attr, 710 &dev_attr_specification_version.attr, 711 &dev_attr_manufacturing_date.attr, 712 &dev_attr_manufacturer_id.attr, 713 &dev_attr_rtt_capability.attr, 714 &dev_attr_rtc_update.attr, 715 &dev_attr_ufs_features.attr, 716 &dev_attr_ffu_timeout.attr, 717 &dev_attr_queue_depth.attr, 718 &dev_attr_device_version.attr, 719 &dev_attr_number_of_secure_wpa.attr, 720 &dev_attr_psa_max_data_size.attr, 721 &dev_attr_psa_state_timeout.attr, 722 &dev_attr_hpb_version.attr, 723 &dev_attr_hpb_control.attr, 724 &dev_attr_ext_feature_sup.attr, 725 &dev_attr_wb_presv_us_en.attr, 726 &dev_attr_wb_type.attr, 727 &dev_attr_wb_shared_alloc_units.attr, 728 NULL, 729 }; 730 731 static const struct attribute_group ufs_sysfs_device_descriptor_group = { 732 .name = "device_descriptor", 733 .attrs = ufs_sysfs_device_descriptor, 734 }; 735 736 #define UFS_INTERCONNECT_DESC_PARAM(_name, _uname, _size) \ 737 UFS_DESC_PARAM(_name, _uname, INTERCONNECT, _size) 738 739 UFS_INTERCONNECT_DESC_PARAM(unipro_version, _UNIPRO_VER, 2); 740 UFS_INTERCONNECT_DESC_PARAM(mphy_version, _MPHY_VER, 2); 741 742 static struct attribute *ufs_sysfs_interconnect_descriptor[] = { 743 &dev_attr_unipro_version.attr, 744 &dev_attr_mphy_version.attr, 745 NULL, 746 }; 747 748 static const struct attribute_group ufs_sysfs_interconnect_descriptor_group = { 749 .name = "interconnect_descriptor", 750 .attrs = ufs_sysfs_interconnect_descriptor, 751 }; 752 753 #define UFS_GEOMETRY_DESC_PARAM(_name, _uname, _size) \ 754 UFS_DESC_PARAM(_name, _uname, GEOMETRY, _size) 755 756 UFS_GEOMETRY_DESC_PARAM(raw_device_capacity, _DEV_CAP, 8); 757 UFS_GEOMETRY_DESC_PARAM(max_number_of_luns, _MAX_NUM_LUN, 1); 758 UFS_GEOMETRY_DESC_PARAM(segment_size, _SEG_SIZE, 4); 759 UFS_GEOMETRY_DESC_PARAM(allocation_unit_size, _ALLOC_UNIT_SIZE, 1); 760 UFS_GEOMETRY_DESC_PARAM(min_addressable_block_size, _MIN_BLK_SIZE, 1); 761 UFS_GEOMETRY_DESC_PARAM(optimal_read_block_size, _OPT_RD_BLK_SIZE, 1); 762 UFS_GEOMETRY_DESC_PARAM(optimal_write_block_size, _OPT_WR_BLK_SIZE, 1); 763 UFS_GEOMETRY_DESC_PARAM(max_in_buffer_size, _MAX_IN_BUF_SIZE, 1); 764 UFS_GEOMETRY_DESC_PARAM(max_out_buffer_size, _MAX_OUT_BUF_SIZE, 1); 765 UFS_GEOMETRY_DESC_PARAM(rpmb_rw_size, _RPMB_RW_SIZE, 1); 766 UFS_GEOMETRY_DESC_PARAM(dyn_capacity_resource_policy, _DYN_CAP_RSRC_PLC, 1); 767 UFS_GEOMETRY_DESC_PARAM(data_ordering, _DATA_ORDER, 1); 768 UFS_GEOMETRY_DESC_PARAM(max_number_of_contexts, _MAX_NUM_CTX, 1); 769 UFS_GEOMETRY_DESC_PARAM(sys_data_tag_unit_size, _TAG_UNIT_SIZE, 1); 770 UFS_GEOMETRY_DESC_PARAM(sys_data_tag_resource_size, _TAG_RSRC_SIZE, 1); 771 UFS_GEOMETRY_DESC_PARAM(secure_removal_types, _SEC_RM_TYPES, 1); 772 UFS_GEOMETRY_DESC_PARAM(memory_types, _MEM_TYPES, 2); 773 UFS_GEOMETRY_DESC_PARAM(sys_code_memory_max_alloc_units, 774 _SCM_MAX_NUM_UNITS, 4); 775 UFS_GEOMETRY_DESC_PARAM(sys_code_memory_capacity_adjustment_factor, 776 _SCM_CAP_ADJ_FCTR, 2); 777 UFS_GEOMETRY_DESC_PARAM(non_persist_memory_max_alloc_units, 778 _NPM_MAX_NUM_UNITS, 4); 779 UFS_GEOMETRY_DESC_PARAM(non_persist_memory_capacity_adjustment_factor, 780 _NPM_CAP_ADJ_FCTR, 2); 781 UFS_GEOMETRY_DESC_PARAM(enh1_memory_max_alloc_units, 782 _ENM1_MAX_NUM_UNITS, 4); 783 UFS_GEOMETRY_DESC_PARAM(enh1_memory_capacity_adjustment_factor, 784 _ENM1_CAP_ADJ_FCTR, 2); 785 UFS_GEOMETRY_DESC_PARAM(enh2_memory_max_alloc_units, 786 _ENM2_MAX_NUM_UNITS, 4); 787 UFS_GEOMETRY_DESC_PARAM(enh2_memory_capacity_adjustment_factor, 788 _ENM2_CAP_ADJ_FCTR, 2); 789 UFS_GEOMETRY_DESC_PARAM(enh3_memory_max_alloc_units, 790 _ENM3_MAX_NUM_UNITS, 4); 791 UFS_GEOMETRY_DESC_PARAM(enh3_memory_capacity_adjustment_factor, 792 _ENM3_CAP_ADJ_FCTR, 2); 793 UFS_GEOMETRY_DESC_PARAM(enh4_memory_max_alloc_units, 794 _ENM4_MAX_NUM_UNITS, 4); 795 UFS_GEOMETRY_DESC_PARAM(enh4_memory_capacity_adjustment_factor, 796 _ENM4_CAP_ADJ_FCTR, 2); 797 UFS_GEOMETRY_DESC_PARAM(hpb_region_size, _HPB_REGION_SIZE, 1); 798 UFS_GEOMETRY_DESC_PARAM(hpb_number_lu, _HPB_NUMBER_LU, 1); 799 UFS_GEOMETRY_DESC_PARAM(hpb_subregion_size, _HPB_SUBREGION_SIZE, 1); 800 UFS_GEOMETRY_DESC_PARAM(hpb_max_active_regions, _HPB_MAX_ACTIVE_REGS, 2); 801 UFS_GEOMETRY_DESC_PARAM(wb_max_alloc_units, _WB_MAX_ALLOC_UNITS, 4); 802 UFS_GEOMETRY_DESC_PARAM(wb_max_wb_luns, _WB_MAX_WB_LUNS, 1); 803 UFS_GEOMETRY_DESC_PARAM(wb_buff_cap_adj, _WB_BUFF_CAP_ADJ, 1); 804 UFS_GEOMETRY_DESC_PARAM(wb_sup_red_type, _WB_SUP_RED_TYPE, 1); 805 UFS_GEOMETRY_DESC_PARAM(wb_sup_wb_type, _WB_SUP_WB_TYPE, 1); 806 807 808 static struct attribute *ufs_sysfs_geometry_descriptor[] = { 809 &dev_attr_raw_device_capacity.attr, 810 &dev_attr_max_number_of_luns.attr, 811 &dev_attr_segment_size.attr, 812 &dev_attr_allocation_unit_size.attr, 813 &dev_attr_min_addressable_block_size.attr, 814 &dev_attr_optimal_read_block_size.attr, 815 &dev_attr_optimal_write_block_size.attr, 816 &dev_attr_max_in_buffer_size.attr, 817 &dev_attr_max_out_buffer_size.attr, 818 &dev_attr_rpmb_rw_size.attr, 819 &dev_attr_dyn_capacity_resource_policy.attr, 820 &dev_attr_data_ordering.attr, 821 &dev_attr_max_number_of_contexts.attr, 822 &dev_attr_sys_data_tag_unit_size.attr, 823 &dev_attr_sys_data_tag_resource_size.attr, 824 &dev_attr_secure_removal_types.attr, 825 &dev_attr_memory_types.attr, 826 &dev_attr_sys_code_memory_max_alloc_units.attr, 827 &dev_attr_sys_code_memory_capacity_adjustment_factor.attr, 828 &dev_attr_non_persist_memory_max_alloc_units.attr, 829 &dev_attr_non_persist_memory_capacity_adjustment_factor.attr, 830 &dev_attr_enh1_memory_max_alloc_units.attr, 831 &dev_attr_enh1_memory_capacity_adjustment_factor.attr, 832 &dev_attr_enh2_memory_max_alloc_units.attr, 833 &dev_attr_enh2_memory_capacity_adjustment_factor.attr, 834 &dev_attr_enh3_memory_max_alloc_units.attr, 835 &dev_attr_enh3_memory_capacity_adjustment_factor.attr, 836 &dev_attr_enh4_memory_max_alloc_units.attr, 837 &dev_attr_enh4_memory_capacity_adjustment_factor.attr, 838 &dev_attr_hpb_region_size.attr, 839 &dev_attr_hpb_number_lu.attr, 840 &dev_attr_hpb_subregion_size.attr, 841 &dev_attr_hpb_max_active_regions.attr, 842 &dev_attr_wb_max_alloc_units.attr, 843 &dev_attr_wb_max_wb_luns.attr, 844 &dev_attr_wb_buff_cap_adj.attr, 845 &dev_attr_wb_sup_red_type.attr, 846 &dev_attr_wb_sup_wb_type.attr, 847 NULL, 848 }; 849 850 static const struct attribute_group ufs_sysfs_geometry_descriptor_group = { 851 .name = "geometry_descriptor", 852 .attrs = ufs_sysfs_geometry_descriptor, 853 }; 854 855 #define UFS_HEALTH_DESC_PARAM(_name, _uname, _size) \ 856 UFS_DESC_PARAM(_name, _uname, HEALTH, _size) 857 858 UFS_HEALTH_DESC_PARAM(eol_info, _EOL_INFO, 1); 859 UFS_HEALTH_DESC_PARAM(life_time_estimation_a, _LIFE_TIME_EST_A, 1); 860 UFS_HEALTH_DESC_PARAM(life_time_estimation_b, _LIFE_TIME_EST_B, 1); 861 862 static struct attribute *ufs_sysfs_health_descriptor[] = { 863 &dev_attr_eol_info.attr, 864 &dev_attr_life_time_estimation_a.attr, 865 &dev_attr_life_time_estimation_b.attr, 866 NULL, 867 }; 868 869 static const struct attribute_group ufs_sysfs_health_descriptor_group = { 870 .name = "health_descriptor", 871 .attrs = ufs_sysfs_health_descriptor, 872 }; 873 874 #define UFS_POWER_DESC_PARAM(_name, _uname, _index) \ 875 static ssize_t _name##_index##_show(struct device *dev, \ 876 struct device_attribute *attr, char *buf) \ 877 { \ 878 struct ufs_hba *hba = dev_get_drvdata(dev); \ 879 return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_POWER, 0, \ 880 PWR_DESC##_uname##_0 + _index * 2, buf, 2); \ 881 } \ 882 static DEVICE_ATTR_RO(_name##_index) 883 884 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 0); 885 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 1); 886 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 2); 887 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 3); 888 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 4); 889 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 5); 890 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 6); 891 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 7); 892 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 8); 893 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 9); 894 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 10); 895 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 11); 896 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 12); 897 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 13); 898 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 14); 899 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 15); 900 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 0); 901 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 1); 902 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 2); 903 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 3); 904 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 4); 905 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 5); 906 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 6); 907 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 7); 908 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 8); 909 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 9); 910 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 10); 911 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 11); 912 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 12); 913 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 13); 914 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 14); 915 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 15); 916 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 0); 917 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 1); 918 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 2); 919 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 3); 920 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 4); 921 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 5); 922 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 6); 923 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 7); 924 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 8); 925 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 9); 926 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 10); 927 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 11); 928 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 12); 929 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 13); 930 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 14); 931 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 15); 932 933 static struct attribute *ufs_sysfs_power_descriptor[] = { 934 &dev_attr_active_icc_levels_vcc0.attr, 935 &dev_attr_active_icc_levels_vcc1.attr, 936 &dev_attr_active_icc_levels_vcc2.attr, 937 &dev_attr_active_icc_levels_vcc3.attr, 938 &dev_attr_active_icc_levels_vcc4.attr, 939 &dev_attr_active_icc_levels_vcc5.attr, 940 &dev_attr_active_icc_levels_vcc6.attr, 941 &dev_attr_active_icc_levels_vcc7.attr, 942 &dev_attr_active_icc_levels_vcc8.attr, 943 &dev_attr_active_icc_levels_vcc9.attr, 944 &dev_attr_active_icc_levels_vcc10.attr, 945 &dev_attr_active_icc_levels_vcc11.attr, 946 &dev_attr_active_icc_levels_vcc12.attr, 947 &dev_attr_active_icc_levels_vcc13.attr, 948 &dev_attr_active_icc_levels_vcc14.attr, 949 &dev_attr_active_icc_levels_vcc15.attr, 950 &dev_attr_active_icc_levels_vccq0.attr, 951 &dev_attr_active_icc_levels_vccq1.attr, 952 &dev_attr_active_icc_levels_vccq2.attr, 953 &dev_attr_active_icc_levels_vccq3.attr, 954 &dev_attr_active_icc_levels_vccq4.attr, 955 &dev_attr_active_icc_levels_vccq5.attr, 956 &dev_attr_active_icc_levels_vccq6.attr, 957 &dev_attr_active_icc_levels_vccq7.attr, 958 &dev_attr_active_icc_levels_vccq8.attr, 959 &dev_attr_active_icc_levels_vccq9.attr, 960 &dev_attr_active_icc_levels_vccq10.attr, 961 &dev_attr_active_icc_levels_vccq11.attr, 962 &dev_attr_active_icc_levels_vccq12.attr, 963 &dev_attr_active_icc_levels_vccq13.attr, 964 &dev_attr_active_icc_levels_vccq14.attr, 965 &dev_attr_active_icc_levels_vccq15.attr, 966 &dev_attr_active_icc_levels_vccq20.attr, 967 &dev_attr_active_icc_levels_vccq21.attr, 968 &dev_attr_active_icc_levels_vccq22.attr, 969 &dev_attr_active_icc_levels_vccq23.attr, 970 &dev_attr_active_icc_levels_vccq24.attr, 971 &dev_attr_active_icc_levels_vccq25.attr, 972 &dev_attr_active_icc_levels_vccq26.attr, 973 &dev_attr_active_icc_levels_vccq27.attr, 974 &dev_attr_active_icc_levels_vccq28.attr, 975 &dev_attr_active_icc_levels_vccq29.attr, 976 &dev_attr_active_icc_levels_vccq210.attr, 977 &dev_attr_active_icc_levels_vccq211.attr, 978 &dev_attr_active_icc_levels_vccq212.attr, 979 &dev_attr_active_icc_levels_vccq213.attr, 980 &dev_attr_active_icc_levels_vccq214.attr, 981 &dev_attr_active_icc_levels_vccq215.attr, 982 NULL, 983 }; 984 985 static const struct attribute_group ufs_sysfs_power_descriptor_group = { 986 .name = "power_descriptor", 987 .attrs = ufs_sysfs_power_descriptor, 988 }; 989 990 #define UFS_STRING_DESCRIPTOR(_name, _pname) \ 991 static ssize_t _name##_show(struct device *dev, \ 992 struct device_attribute *attr, char *buf) \ 993 { \ 994 u8 index; \ 995 struct ufs_hba *hba = dev_get_drvdata(dev); \ 996 int ret; \ 997 int desc_len = QUERY_DESC_MAX_SIZE; \ 998 u8 *desc_buf; \ 999 \ 1000 down(&hba->host_sem); \ 1001 if (!ufshcd_is_user_access_allowed(hba)) { \ 1002 up(&hba->host_sem); \ 1003 return -EBUSY; \ 1004 } \ 1005 desc_buf = kzalloc(QUERY_DESC_MAX_SIZE, GFP_ATOMIC); \ 1006 if (!desc_buf) { \ 1007 up(&hba->host_sem); \ 1008 return -ENOMEM; \ 1009 } \ 1010 ufshcd_rpm_get_sync(hba); \ 1011 ret = ufshcd_query_descriptor_retry(hba, \ 1012 UPIU_QUERY_OPCODE_READ_DESC, QUERY_DESC_IDN_DEVICE, \ 1013 0, 0, desc_buf, &desc_len); \ 1014 if (ret) { \ 1015 ret = -EINVAL; \ 1016 goto out; \ 1017 } \ 1018 index = desc_buf[DEVICE_DESC_PARAM##_pname]; \ 1019 kfree(desc_buf); \ 1020 desc_buf = NULL; \ 1021 ret = ufshcd_read_string_desc(hba, index, &desc_buf, \ 1022 SD_ASCII_STD); \ 1023 if (ret < 0) \ 1024 goto out; \ 1025 ret = sysfs_emit(buf, "%s\n", desc_buf); \ 1026 out: \ 1027 ufshcd_rpm_put_sync(hba); \ 1028 kfree(desc_buf); \ 1029 up(&hba->host_sem); \ 1030 return ret; \ 1031 } \ 1032 static DEVICE_ATTR_RO(_name) 1033 1034 UFS_STRING_DESCRIPTOR(manufacturer_name, _MANF_NAME); 1035 UFS_STRING_DESCRIPTOR(product_name, _PRDCT_NAME); 1036 UFS_STRING_DESCRIPTOR(oem_id, _OEM_ID); 1037 UFS_STRING_DESCRIPTOR(serial_number, _SN); 1038 UFS_STRING_DESCRIPTOR(product_revision, _PRDCT_REV); 1039 1040 static struct attribute *ufs_sysfs_string_descriptors[] = { 1041 &dev_attr_manufacturer_name.attr, 1042 &dev_attr_product_name.attr, 1043 &dev_attr_oem_id.attr, 1044 &dev_attr_serial_number.attr, 1045 &dev_attr_product_revision.attr, 1046 NULL, 1047 }; 1048 1049 static const struct attribute_group ufs_sysfs_string_descriptors_group = { 1050 .name = "string_descriptors", 1051 .attrs = ufs_sysfs_string_descriptors, 1052 }; 1053 1054 static inline bool ufshcd_is_wb_flags(enum flag_idn idn) 1055 { 1056 return idn >= QUERY_FLAG_IDN_WB_EN && 1057 idn <= QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8; 1058 } 1059 1060 #define UFS_FLAG(_name, _uname) \ 1061 static ssize_t _name##_show(struct device *dev, \ 1062 struct device_attribute *attr, char *buf) \ 1063 { \ 1064 bool flag; \ 1065 u8 index = 0; \ 1066 int ret; \ 1067 struct ufs_hba *hba = dev_get_drvdata(dev); \ 1068 \ 1069 down(&hba->host_sem); \ 1070 if (!ufshcd_is_user_access_allowed(hba)) { \ 1071 up(&hba->host_sem); \ 1072 return -EBUSY; \ 1073 } \ 1074 if (ufshcd_is_wb_flags(QUERY_FLAG_IDN##_uname)) \ 1075 index = ufshcd_wb_get_query_index(hba); \ 1076 ufshcd_rpm_get_sync(hba); \ 1077 ret = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, \ 1078 QUERY_FLAG_IDN##_uname, index, &flag); \ 1079 ufshcd_rpm_put_sync(hba); \ 1080 if (ret) { \ 1081 ret = -EINVAL; \ 1082 goto out; \ 1083 } \ 1084 ret = sysfs_emit(buf, "%s\n", flag ? "true" : "false"); \ 1085 out: \ 1086 up(&hba->host_sem); \ 1087 return ret; \ 1088 } \ 1089 static DEVICE_ATTR_RO(_name) 1090 1091 UFS_FLAG(device_init, _FDEVICEINIT); 1092 UFS_FLAG(permanent_wpe, _PERMANENT_WPE); 1093 UFS_FLAG(power_on_wpe, _PWR_ON_WPE); 1094 UFS_FLAG(bkops_enable, _BKOPS_EN); 1095 UFS_FLAG(life_span_mode_enable, _LIFE_SPAN_MODE_ENABLE); 1096 UFS_FLAG(phy_resource_removal, _FPHYRESOURCEREMOVAL); 1097 UFS_FLAG(busy_rtc, _BUSY_RTC); 1098 UFS_FLAG(disable_fw_update, _PERMANENTLY_DISABLE_FW_UPDATE); 1099 UFS_FLAG(wb_enable, _WB_EN); 1100 UFS_FLAG(wb_flush_en, _WB_BUFF_FLUSH_EN); 1101 UFS_FLAG(wb_flush_during_h8, _WB_BUFF_FLUSH_DURING_HIBERN8); 1102 UFS_FLAG(hpb_enable, _HPB_EN); 1103 1104 static struct attribute *ufs_sysfs_device_flags[] = { 1105 &dev_attr_device_init.attr, 1106 &dev_attr_permanent_wpe.attr, 1107 &dev_attr_power_on_wpe.attr, 1108 &dev_attr_bkops_enable.attr, 1109 &dev_attr_life_span_mode_enable.attr, 1110 &dev_attr_phy_resource_removal.attr, 1111 &dev_attr_busy_rtc.attr, 1112 &dev_attr_disable_fw_update.attr, 1113 &dev_attr_wb_enable.attr, 1114 &dev_attr_wb_flush_en.attr, 1115 &dev_attr_wb_flush_during_h8.attr, 1116 &dev_attr_hpb_enable.attr, 1117 NULL, 1118 }; 1119 1120 static const struct attribute_group ufs_sysfs_flags_group = { 1121 .name = "flags", 1122 .attrs = ufs_sysfs_device_flags, 1123 }; 1124 1125 static inline bool ufshcd_is_wb_attrs(enum attr_idn idn) 1126 { 1127 return idn >= QUERY_ATTR_IDN_WB_FLUSH_STATUS && 1128 idn <= QUERY_ATTR_IDN_CURR_WB_BUFF_SIZE; 1129 } 1130 1131 #define UFS_ATTRIBUTE(_name, _uname) \ 1132 static ssize_t _name##_show(struct device *dev, \ 1133 struct device_attribute *attr, char *buf) \ 1134 { \ 1135 struct ufs_hba *hba = dev_get_drvdata(dev); \ 1136 u32 value; \ 1137 int ret; \ 1138 u8 index = 0; \ 1139 \ 1140 down(&hba->host_sem); \ 1141 if (!ufshcd_is_user_access_allowed(hba)) { \ 1142 up(&hba->host_sem); \ 1143 return -EBUSY; \ 1144 } \ 1145 if (ufshcd_is_wb_attrs(QUERY_ATTR_IDN##_uname)) \ 1146 index = ufshcd_wb_get_query_index(hba); \ 1147 ufshcd_rpm_get_sync(hba); \ 1148 ret = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR, \ 1149 QUERY_ATTR_IDN##_uname, index, 0, &value); \ 1150 ufshcd_rpm_put_sync(hba); \ 1151 if (ret) { \ 1152 ret = -EINVAL; \ 1153 goto out; \ 1154 } \ 1155 ret = sysfs_emit(buf, "0x%08X\n", value); \ 1156 out: \ 1157 up(&hba->host_sem); \ 1158 return ret; \ 1159 } \ 1160 static DEVICE_ATTR_RO(_name) 1161 1162 UFS_ATTRIBUTE(boot_lun_enabled, _BOOT_LU_EN); 1163 UFS_ATTRIBUTE(max_data_size_hpb_single_cmd, _MAX_HPB_SINGLE_CMD); 1164 UFS_ATTRIBUTE(current_power_mode, _POWER_MODE); 1165 UFS_ATTRIBUTE(active_icc_level, _ACTIVE_ICC_LVL); 1166 UFS_ATTRIBUTE(ooo_data_enabled, _OOO_DATA_EN); 1167 UFS_ATTRIBUTE(bkops_status, _BKOPS_STATUS); 1168 UFS_ATTRIBUTE(purge_status, _PURGE_STATUS); 1169 UFS_ATTRIBUTE(max_data_in_size, _MAX_DATA_IN); 1170 UFS_ATTRIBUTE(max_data_out_size, _MAX_DATA_OUT); 1171 UFS_ATTRIBUTE(reference_clock_frequency, _REF_CLK_FREQ); 1172 UFS_ATTRIBUTE(configuration_descriptor_lock, _CONF_DESC_LOCK); 1173 UFS_ATTRIBUTE(max_number_of_rtt, _MAX_NUM_OF_RTT); 1174 UFS_ATTRIBUTE(exception_event_control, _EE_CONTROL); 1175 UFS_ATTRIBUTE(exception_event_status, _EE_STATUS); 1176 UFS_ATTRIBUTE(ffu_status, _FFU_STATUS); 1177 UFS_ATTRIBUTE(psa_state, _PSA_STATE); 1178 UFS_ATTRIBUTE(psa_data_size, _PSA_DATA_SIZE); 1179 UFS_ATTRIBUTE(wb_flush_status, _WB_FLUSH_STATUS); 1180 UFS_ATTRIBUTE(wb_avail_buf, _AVAIL_WB_BUFF_SIZE); 1181 UFS_ATTRIBUTE(wb_life_time_est, _WB_BUFF_LIFE_TIME_EST); 1182 UFS_ATTRIBUTE(wb_cur_buf, _CURR_WB_BUFF_SIZE); 1183 1184 1185 static struct attribute *ufs_sysfs_attributes[] = { 1186 &dev_attr_boot_lun_enabled.attr, 1187 &dev_attr_max_data_size_hpb_single_cmd.attr, 1188 &dev_attr_current_power_mode.attr, 1189 &dev_attr_active_icc_level.attr, 1190 &dev_attr_ooo_data_enabled.attr, 1191 &dev_attr_bkops_status.attr, 1192 &dev_attr_purge_status.attr, 1193 &dev_attr_max_data_in_size.attr, 1194 &dev_attr_max_data_out_size.attr, 1195 &dev_attr_reference_clock_frequency.attr, 1196 &dev_attr_configuration_descriptor_lock.attr, 1197 &dev_attr_max_number_of_rtt.attr, 1198 &dev_attr_exception_event_control.attr, 1199 &dev_attr_exception_event_status.attr, 1200 &dev_attr_ffu_status.attr, 1201 &dev_attr_psa_state.attr, 1202 &dev_attr_psa_data_size.attr, 1203 &dev_attr_wb_flush_status.attr, 1204 &dev_attr_wb_avail_buf.attr, 1205 &dev_attr_wb_life_time_est.attr, 1206 &dev_attr_wb_cur_buf.attr, 1207 NULL, 1208 }; 1209 1210 static const struct attribute_group ufs_sysfs_attributes_group = { 1211 .name = "attributes", 1212 .attrs = ufs_sysfs_attributes, 1213 }; 1214 1215 static const struct attribute_group *ufs_sysfs_groups[] = { 1216 &ufs_sysfs_default_group, 1217 &ufs_sysfs_capabilities_group, 1218 &ufs_sysfs_monitor_group, 1219 &ufs_sysfs_device_descriptor_group, 1220 &ufs_sysfs_interconnect_descriptor_group, 1221 &ufs_sysfs_geometry_descriptor_group, 1222 &ufs_sysfs_health_descriptor_group, 1223 &ufs_sysfs_power_descriptor_group, 1224 &ufs_sysfs_string_descriptors_group, 1225 &ufs_sysfs_flags_group, 1226 &ufs_sysfs_attributes_group, 1227 NULL, 1228 }; 1229 1230 #define UFS_LUN_DESC_PARAM(_pname, _puname, _duname, _size) \ 1231 static ssize_t _pname##_show(struct device *dev, \ 1232 struct device_attribute *attr, char *buf) \ 1233 { \ 1234 struct scsi_device *sdev = to_scsi_device(dev); \ 1235 struct ufs_hba *hba = shost_priv(sdev->host); \ 1236 u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun); \ 1237 if (!ufs_is_valid_unit_desc_lun(&hba->dev_info, lun)) \ 1238 return -EINVAL; \ 1239 return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_##_duname, \ 1240 lun, _duname##_DESC_PARAM##_puname, buf, _size); \ 1241 } \ 1242 static DEVICE_ATTR_RO(_pname) 1243 1244 #define UFS_UNIT_DESC_PARAM(_name, _uname, _size) \ 1245 UFS_LUN_DESC_PARAM(_name, _uname, UNIT, _size) 1246 1247 UFS_UNIT_DESC_PARAM(lu_enable, _LU_ENABLE, 1); 1248 UFS_UNIT_DESC_PARAM(boot_lun_id, _BOOT_LUN_ID, 1); 1249 UFS_UNIT_DESC_PARAM(lun_write_protect, _LU_WR_PROTECT, 1); 1250 UFS_UNIT_DESC_PARAM(lun_queue_depth, _LU_Q_DEPTH, 1); 1251 UFS_UNIT_DESC_PARAM(psa_sensitive, _PSA_SENSITIVE, 1); 1252 UFS_UNIT_DESC_PARAM(lun_memory_type, _MEM_TYPE, 1); 1253 UFS_UNIT_DESC_PARAM(data_reliability, _DATA_RELIABILITY, 1); 1254 UFS_UNIT_DESC_PARAM(logical_block_size, _LOGICAL_BLK_SIZE, 1); 1255 UFS_UNIT_DESC_PARAM(logical_block_count, _LOGICAL_BLK_COUNT, 8); 1256 UFS_UNIT_DESC_PARAM(erase_block_size, _ERASE_BLK_SIZE, 4); 1257 UFS_UNIT_DESC_PARAM(provisioning_type, _PROVISIONING_TYPE, 1); 1258 UFS_UNIT_DESC_PARAM(physical_memory_resourse_count, _PHY_MEM_RSRC_CNT, 8); 1259 UFS_UNIT_DESC_PARAM(context_capabilities, _CTX_CAPABILITIES, 2); 1260 UFS_UNIT_DESC_PARAM(large_unit_granularity, _LARGE_UNIT_SIZE_M1, 1); 1261 UFS_UNIT_DESC_PARAM(hpb_lu_max_active_regions, _HPB_LU_MAX_ACTIVE_RGNS, 2); 1262 UFS_UNIT_DESC_PARAM(hpb_pinned_region_start_offset, _HPB_PIN_RGN_START_OFF, 2); 1263 UFS_UNIT_DESC_PARAM(hpb_number_pinned_regions, _HPB_NUM_PIN_RGNS, 2); 1264 UFS_UNIT_DESC_PARAM(wb_buf_alloc_units, _WB_BUF_ALLOC_UNITS, 4); 1265 1266 static struct attribute *ufs_sysfs_unit_descriptor[] = { 1267 &dev_attr_lu_enable.attr, 1268 &dev_attr_boot_lun_id.attr, 1269 &dev_attr_lun_write_protect.attr, 1270 &dev_attr_lun_queue_depth.attr, 1271 &dev_attr_psa_sensitive.attr, 1272 &dev_attr_lun_memory_type.attr, 1273 &dev_attr_data_reliability.attr, 1274 &dev_attr_logical_block_size.attr, 1275 &dev_attr_logical_block_count.attr, 1276 &dev_attr_erase_block_size.attr, 1277 &dev_attr_provisioning_type.attr, 1278 &dev_attr_physical_memory_resourse_count.attr, 1279 &dev_attr_context_capabilities.attr, 1280 &dev_attr_large_unit_granularity.attr, 1281 &dev_attr_hpb_lu_max_active_regions.attr, 1282 &dev_attr_hpb_pinned_region_start_offset.attr, 1283 &dev_attr_hpb_number_pinned_regions.attr, 1284 &dev_attr_wb_buf_alloc_units.attr, 1285 NULL, 1286 }; 1287 1288 static umode_t ufs_unit_descriptor_is_visible(struct kobject *kobj, struct attribute *attr, int n) 1289 { 1290 struct device *dev = container_of(kobj, struct device, kobj); 1291 struct scsi_device *sdev = to_scsi_device(dev); 1292 u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun); 1293 umode_t mode = attr->mode; 1294 1295 if (lun == UFS_UPIU_BOOT_WLUN || lun == UFS_UPIU_UFS_DEVICE_WLUN) 1296 /* Boot and device WLUN have no unit descriptors */ 1297 mode = 0; 1298 if (lun == UFS_UPIU_RPMB_WLUN && attr == &dev_attr_wb_buf_alloc_units.attr) 1299 mode = 0; 1300 1301 return mode; 1302 } 1303 1304 1305 const struct attribute_group ufs_sysfs_unit_descriptor_group = { 1306 .name = "unit_descriptor", 1307 .attrs = ufs_sysfs_unit_descriptor, 1308 .is_visible = ufs_unit_descriptor_is_visible, 1309 }; 1310 1311 static ssize_t dyn_cap_needed_attribute_show(struct device *dev, 1312 struct device_attribute *attr, char *buf) 1313 { 1314 u32 value; 1315 struct scsi_device *sdev = to_scsi_device(dev); 1316 struct ufs_hba *hba = shost_priv(sdev->host); 1317 u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun); 1318 int ret; 1319 1320 down(&hba->host_sem); 1321 if (!ufshcd_is_user_access_allowed(hba)) { 1322 ret = -EBUSY; 1323 goto out; 1324 } 1325 1326 ufshcd_rpm_get_sync(hba); 1327 ret = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR, 1328 QUERY_ATTR_IDN_DYN_CAP_NEEDED, lun, 0, &value); 1329 ufshcd_rpm_put_sync(hba); 1330 if (ret) { 1331 ret = -EINVAL; 1332 goto out; 1333 } 1334 1335 ret = sysfs_emit(buf, "0x%08X\n", value); 1336 1337 out: 1338 up(&hba->host_sem); 1339 return ret; 1340 } 1341 static DEVICE_ATTR_RO(dyn_cap_needed_attribute); 1342 1343 static struct attribute *ufs_sysfs_lun_attributes[] = { 1344 &dev_attr_dyn_cap_needed_attribute.attr, 1345 NULL, 1346 }; 1347 1348 const struct attribute_group ufs_sysfs_lun_attributes_group = { 1349 .attrs = ufs_sysfs_lun_attributes, 1350 }; 1351 1352 void ufs_sysfs_add_nodes(struct device *dev) 1353 { 1354 int ret; 1355 1356 ret = sysfs_create_groups(&dev->kobj, ufs_sysfs_groups); 1357 if (ret) 1358 dev_err(dev, 1359 "%s: sysfs groups creation failed (err = %d)\n", 1360 __func__, ret); 1361 } 1362 1363 void ufs_sysfs_remove_nodes(struct device *dev) 1364 { 1365 sysfs_remove_groups(&dev->kobj, ufs_sysfs_groups); 1366 } 1367