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