0001
0002
0003
0004 #include <linux/err.h>
0005 #include <linux/string.h>
0006 #include <linux/bitfield.h>
0007 #include <asm/unaligned.h>
0008
0009 #include <ufs/ufs.h>
0010 #include "ufs-sysfs.h"
0011 #include "ufshcd-priv.h"
0012
0013 static const char *ufshcd_uic_link_state_to_string(
0014 enum uic_link_state state)
0015 {
0016 switch (state) {
0017 case UIC_LINK_OFF_STATE: return "OFF";
0018 case UIC_LINK_ACTIVE_STATE: return "ACTIVE";
0019 case UIC_LINK_HIBERN8_STATE: return "HIBERN8";
0020 case UIC_LINK_BROKEN_STATE: return "BROKEN";
0021 default: return "UNKNOWN";
0022 }
0023 }
0024
0025 static const char *ufshcd_ufs_dev_pwr_mode_to_string(
0026 enum ufs_dev_pwr_mode state)
0027 {
0028 switch (state) {
0029 case UFS_ACTIVE_PWR_MODE: return "ACTIVE";
0030 case UFS_SLEEP_PWR_MODE: return "SLEEP";
0031 case UFS_POWERDOWN_PWR_MODE: return "POWERDOWN";
0032 case UFS_DEEPSLEEP_PWR_MODE: return "DEEPSLEEP";
0033 default: return "UNKNOWN";
0034 }
0035 }
0036
0037 static inline ssize_t ufs_sysfs_pm_lvl_store(struct device *dev,
0038 struct device_attribute *attr,
0039 const char *buf, size_t count,
0040 bool rpm)
0041 {
0042 struct ufs_hba *hba = dev_get_drvdata(dev);
0043 struct ufs_dev_info *dev_info = &hba->dev_info;
0044 unsigned long flags, value;
0045
0046 if (kstrtoul(buf, 0, &value))
0047 return -EINVAL;
0048
0049 if (value >= UFS_PM_LVL_MAX)
0050 return -EINVAL;
0051
0052 if (ufs_pm_lvl_states[value].dev_state == UFS_DEEPSLEEP_PWR_MODE &&
0053 (!(hba->caps & UFSHCD_CAP_DEEPSLEEP) ||
0054 !(dev_info->wspecversion >= 0x310)))
0055 return -EINVAL;
0056
0057 spin_lock_irqsave(hba->host->host_lock, flags);
0058 if (rpm)
0059 hba->rpm_lvl = value;
0060 else
0061 hba->spm_lvl = value;
0062 spin_unlock_irqrestore(hba->host->host_lock, flags);
0063 return count;
0064 }
0065
0066 static ssize_t rpm_lvl_show(struct device *dev,
0067 struct device_attribute *attr, char *buf)
0068 {
0069 struct ufs_hba *hba = dev_get_drvdata(dev);
0070
0071 return sysfs_emit(buf, "%d\n", hba->rpm_lvl);
0072 }
0073
0074 static ssize_t rpm_lvl_store(struct device *dev,
0075 struct device_attribute *attr, const char *buf, size_t count)
0076 {
0077 return ufs_sysfs_pm_lvl_store(dev, attr, buf, count, true);
0078 }
0079
0080 static ssize_t rpm_target_dev_state_show(struct device *dev,
0081 struct device_attribute *attr, char *buf)
0082 {
0083 struct ufs_hba *hba = dev_get_drvdata(dev);
0084
0085 return sysfs_emit(buf, "%s\n", ufshcd_ufs_dev_pwr_mode_to_string(
0086 ufs_pm_lvl_states[hba->rpm_lvl].dev_state));
0087 }
0088
0089 static ssize_t rpm_target_link_state_show(struct device *dev,
0090 struct device_attribute *attr, char *buf)
0091 {
0092 struct ufs_hba *hba = dev_get_drvdata(dev);
0093
0094 return sysfs_emit(buf, "%s\n", ufshcd_uic_link_state_to_string(
0095 ufs_pm_lvl_states[hba->rpm_lvl].link_state));
0096 }
0097
0098 static ssize_t spm_lvl_show(struct device *dev,
0099 struct device_attribute *attr, char *buf)
0100 {
0101 struct ufs_hba *hba = dev_get_drvdata(dev);
0102
0103 return sysfs_emit(buf, "%d\n", hba->spm_lvl);
0104 }
0105
0106 static ssize_t spm_lvl_store(struct device *dev,
0107 struct device_attribute *attr, const char *buf, size_t count)
0108 {
0109 return ufs_sysfs_pm_lvl_store(dev, attr, buf, count, false);
0110 }
0111
0112 static ssize_t spm_target_dev_state_show(struct device *dev,
0113 struct device_attribute *attr, char *buf)
0114 {
0115 struct ufs_hba *hba = dev_get_drvdata(dev);
0116
0117 return sysfs_emit(buf, "%s\n", ufshcd_ufs_dev_pwr_mode_to_string(
0118 ufs_pm_lvl_states[hba->spm_lvl].dev_state));
0119 }
0120
0121 static ssize_t spm_target_link_state_show(struct device *dev,
0122 struct device_attribute *attr, char *buf)
0123 {
0124 struct ufs_hba *hba = dev_get_drvdata(dev);
0125
0126 return sysfs_emit(buf, "%s\n", ufshcd_uic_link_state_to_string(
0127 ufs_pm_lvl_states[hba->spm_lvl].link_state));
0128 }
0129
0130
0131 static int ufshcd_ahit_to_us(u32 ahit)
0132 {
0133 int timer = FIELD_GET(UFSHCI_AHIBERN8_TIMER_MASK, ahit);
0134 int scale = FIELD_GET(UFSHCI_AHIBERN8_SCALE_MASK, ahit);
0135
0136 for (; scale > 0; --scale)
0137 timer *= UFSHCI_AHIBERN8_SCALE_FACTOR;
0138
0139 return timer;
0140 }
0141
0142
0143 static u32 ufshcd_us_to_ahit(unsigned int timer)
0144 {
0145 unsigned int scale;
0146
0147 for (scale = 0; timer > UFSHCI_AHIBERN8_TIMER_MASK; ++scale)
0148 timer /= UFSHCI_AHIBERN8_SCALE_FACTOR;
0149
0150 return FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, timer) |
0151 FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, scale);
0152 }
0153
0154 static ssize_t auto_hibern8_show(struct device *dev,
0155 struct device_attribute *attr, char *buf)
0156 {
0157 u32 ahit;
0158 int ret;
0159 struct ufs_hba *hba = dev_get_drvdata(dev);
0160
0161 if (!ufshcd_is_auto_hibern8_supported(hba))
0162 return -EOPNOTSUPP;
0163
0164 down(&hba->host_sem);
0165 if (!ufshcd_is_user_access_allowed(hba)) {
0166 ret = -EBUSY;
0167 goto out;
0168 }
0169
0170 pm_runtime_get_sync(hba->dev);
0171 ufshcd_hold(hba, false);
0172 ahit = ufshcd_readl(hba, REG_AUTO_HIBERNATE_IDLE_TIMER);
0173 ufshcd_release(hba);
0174 pm_runtime_put_sync(hba->dev);
0175
0176 ret = sysfs_emit(buf, "%d\n", ufshcd_ahit_to_us(ahit));
0177
0178 out:
0179 up(&hba->host_sem);
0180 return ret;
0181 }
0182
0183 static ssize_t auto_hibern8_store(struct device *dev,
0184 struct device_attribute *attr,
0185 const char *buf, size_t count)
0186 {
0187 struct ufs_hba *hba = dev_get_drvdata(dev);
0188 unsigned int timer;
0189 int ret = 0;
0190
0191 if (!ufshcd_is_auto_hibern8_supported(hba))
0192 return -EOPNOTSUPP;
0193
0194 if (kstrtouint(buf, 0, &timer))
0195 return -EINVAL;
0196
0197 if (timer > UFSHCI_AHIBERN8_MAX)
0198 return -EINVAL;
0199
0200 down(&hba->host_sem);
0201 if (!ufshcd_is_user_access_allowed(hba)) {
0202 ret = -EBUSY;
0203 goto out;
0204 }
0205
0206 ufshcd_auto_hibern8_update(hba, ufshcd_us_to_ahit(timer));
0207
0208 out:
0209 up(&hba->host_sem);
0210 return ret ? ret : count;
0211 }
0212
0213 static ssize_t wb_on_show(struct device *dev, struct device_attribute *attr,
0214 char *buf)
0215 {
0216 struct ufs_hba *hba = dev_get_drvdata(dev);
0217
0218 return sysfs_emit(buf, "%d\n", hba->dev_info.wb_enabled);
0219 }
0220
0221 static ssize_t wb_on_store(struct device *dev, struct device_attribute *attr,
0222 const char *buf, size_t count)
0223 {
0224 struct ufs_hba *hba = dev_get_drvdata(dev);
0225 unsigned int wb_enable;
0226 ssize_t res;
0227
0228 if (!ufshcd_is_wb_allowed(hba) || ufshcd_is_clkscaling_supported(hba)) {
0229
0230
0231
0232
0233 dev_warn(dev, "To control WB through wb_on is not allowed!\n");
0234 return -EOPNOTSUPP;
0235 }
0236
0237 if (kstrtouint(buf, 0, &wb_enable))
0238 return -EINVAL;
0239
0240 if (wb_enable != 0 && wb_enable != 1)
0241 return -EINVAL;
0242
0243 down(&hba->host_sem);
0244 if (!ufshcd_is_user_access_allowed(hba)) {
0245 res = -EBUSY;
0246 goto out;
0247 }
0248
0249 ufshcd_rpm_get_sync(hba);
0250 res = ufshcd_wb_toggle(hba, wb_enable);
0251 ufshcd_rpm_put_sync(hba);
0252 out:
0253 up(&hba->host_sem);
0254 return res < 0 ? res : count;
0255 }
0256
0257 static DEVICE_ATTR_RW(rpm_lvl);
0258 static DEVICE_ATTR_RO(rpm_target_dev_state);
0259 static DEVICE_ATTR_RO(rpm_target_link_state);
0260 static DEVICE_ATTR_RW(spm_lvl);
0261 static DEVICE_ATTR_RO(spm_target_dev_state);
0262 static DEVICE_ATTR_RO(spm_target_link_state);
0263 static DEVICE_ATTR_RW(auto_hibern8);
0264 static DEVICE_ATTR_RW(wb_on);
0265
0266 static struct attribute *ufs_sysfs_ufshcd_attrs[] = {
0267 &dev_attr_rpm_lvl.attr,
0268 &dev_attr_rpm_target_dev_state.attr,
0269 &dev_attr_rpm_target_link_state.attr,
0270 &dev_attr_spm_lvl.attr,
0271 &dev_attr_spm_target_dev_state.attr,
0272 &dev_attr_spm_target_link_state.attr,
0273 &dev_attr_auto_hibern8.attr,
0274 &dev_attr_wb_on.attr,
0275 NULL
0276 };
0277
0278 static const struct attribute_group ufs_sysfs_default_group = {
0279 .attrs = ufs_sysfs_ufshcd_attrs,
0280 };
0281
0282 static ssize_t monitor_enable_show(struct device *dev,
0283 struct device_attribute *attr, char *buf)
0284 {
0285 struct ufs_hba *hba = dev_get_drvdata(dev);
0286
0287 return sysfs_emit(buf, "%d\n", hba->monitor.enabled);
0288 }
0289
0290 static ssize_t monitor_enable_store(struct device *dev,
0291 struct device_attribute *attr,
0292 const char *buf, size_t count)
0293 {
0294 struct ufs_hba *hba = dev_get_drvdata(dev);
0295 unsigned long value, flags;
0296
0297 if (kstrtoul(buf, 0, &value))
0298 return -EINVAL;
0299
0300 value = !!value;
0301 spin_lock_irqsave(hba->host->host_lock, flags);
0302 if (value == hba->monitor.enabled)
0303 goto out_unlock;
0304
0305 if (!value) {
0306 memset(&hba->monitor, 0, sizeof(hba->monitor));
0307 } else {
0308 hba->monitor.enabled = true;
0309 hba->monitor.enabled_ts = ktime_get();
0310 }
0311
0312 out_unlock:
0313 spin_unlock_irqrestore(hba->host->host_lock, flags);
0314 return count;
0315 }
0316
0317 static ssize_t monitor_chunk_size_show(struct device *dev,
0318 struct device_attribute *attr, char *buf)
0319 {
0320 struct ufs_hba *hba = dev_get_drvdata(dev);
0321
0322 return sysfs_emit(buf, "%lu\n", hba->monitor.chunk_size);
0323 }
0324
0325 static ssize_t monitor_chunk_size_store(struct device *dev,
0326 struct device_attribute *attr,
0327 const char *buf, size_t count)
0328 {
0329 struct ufs_hba *hba = dev_get_drvdata(dev);
0330 unsigned long value, flags;
0331
0332 if (kstrtoul(buf, 0, &value))
0333 return -EINVAL;
0334
0335 spin_lock_irqsave(hba->host->host_lock, flags);
0336
0337 if (!hba->monitor.enabled)
0338 hba->monitor.chunk_size = value;
0339 spin_unlock_irqrestore(hba->host->host_lock, flags);
0340 return count;
0341 }
0342
0343 static ssize_t read_total_sectors_show(struct device *dev,
0344 struct device_attribute *attr, char *buf)
0345 {
0346 struct ufs_hba *hba = dev_get_drvdata(dev);
0347
0348 return sysfs_emit(buf, "%lu\n", hba->monitor.nr_sec_rw[READ]);
0349 }
0350
0351 static ssize_t read_total_busy_show(struct device *dev,
0352 struct device_attribute *attr, char *buf)
0353 {
0354 struct ufs_hba *hba = dev_get_drvdata(dev);
0355
0356 return sysfs_emit(buf, "%llu\n",
0357 ktime_to_us(hba->monitor.total_busy[READ]));
0358 }
0359
0360 static ssize_t read_nr_requests_show(struct device *dev,
0361 struct device_attribute *attr, char *buf)
0362 {
0363 struct ufs_hba *hba = dev_get_drvdata(dev);
0364
0365 return sysfs_emit(buf, "%lu\n", hba->monitor.nr_req[READ]);
0366 }
0367
0368 static ssize_t read_req_latency_avg_show(struct device *dev,
0369 struct device_attribute *attr,
0370 char *buf)
0371 {
0372 struct ufs_hba *hba = dev_get_drvdata(dev);
0373 struct ufs_hba_monitor *m = &hba->monitor;
0374
0375 return sysfs_emit(buf, "%llu\n", div_u64(ktime_to_us(m->lat_sum[READ]),
0376 m->nr_req[READ]));
0377 }
0378
0379 static ssize_t read_req_latency_max_show(struct device *dev,
0380 struct device_attribute *attr,
0381 char *buf)
0382 {
0383 struct ufs_hba *hba = dev_get_drvdata(dev);
0384
0385 return sysfs_emit(buf, "%llu\n",
0386 ktime_to_us(hba->monitor.lat_max[READ]));
0387 }
0388
0389 static ssize_t read_req_latency_min_show(struct device *dev,
0390 struct device_attribute *attr,
0391 char *buf)
0392 {
0393 struct ufs_hba *hba = dev_get_drvdata(dev);
0394
0395 return sysfs_emit(buf, "%llu\n",
0396 ktime_to_us(hba->monitor.lat_min[READ]));
0397 }
0398
0399 static ssize_t read_req_latency_sum_show(struct device *dev,
0400 struct device_attribute *attr,
0401 char *buf)
0402 {
0403 struct ufs_hba *hba = dev_get_drvdata(dev);
0404
0405 return sysfs_emit(buf, "%llu\n",
0406 ktime_to_us(hba->monitor.lat_sum[READ]));
0407 }
0408
0409 static ssize_t write_total_sectors_show(struct device *dev,
0410 struct device_attribute *attr,
0411 char *buf)
0412 {
0413 struct ufs_hba *hba = dev_get_drvdata(dev);
0414
0415 return sysfs_emit(buf, "%lu\n", hba->monitor.nr_sec_rw[WRITE]);
0416 }
0417
0418 static ssize_t write_total_busy_show(struct device *dev,
0419 struct device_attribute *attr, char *buf)
0420 {
0421 struct ufs_hba *hba = dev_get_drvdata(dev);
0422
0423 return sysfs_emit(buf, "%llu\n",
0424 ktime_to_us(hba->monitor.total_busy[WRITE]));
0425 }
0426
0427 static ssize_t write_nr_requests_show(struct device *dev,
0428 struct device_attribute *attr, char *buf)
0429 {
0430 struct ufs_hba *hba = dev_get_drvdata(dev);
0431
0432 return sysfs_emit(buf, "%lu\n", hba->monitor.nr_req[WRITE]);
0433 }
0434
0435 static ssize_t write_req_latency_avg_show(struct device *dev,
0436 struct device_attribute *attr,
0437 char *buf)
0438 {
0439 struct ufs_hba *hba = dev_get_drvdata(dev);
0440 struct ufs_hba_monitor *m = &hba->monitor;
0441
0442 return sysfs_emit(buf, "%llu\n", div_u64(ktime_to_us(m->lat_sum[WRITE]),
0443 m->nr_req[WRITE]));
0444 }
0445
0446 static ssize_t write_req_latency_max_show(struct device *dev,
0447 struct device_attribute *attr,
0448 char *buf)
0449 {
0450 struct ufs_hba *hba = dev_get_drvdata(dev);
0451
0452 return sysfs_emit(buf, "%llu\n",
0453 ktime_to_us(hba->monitor.lat_max[WRITE]));
0454 }
0455
0456 static ssize_t write_req_latency_min_show(struct device *dev,
0457 struct device_attribute *attr,
0458 char *buf)
0459 {
0460 struct ufs_hba *hba = dev_get_drvdata(dev);
0461
0462 return sysfs_emit(buf, "%llu\n",
0463 ktime_to_us(hba->monitor.lat_min[WRITE]));
0464 }
0465
0466 static ssize_t write_req_latency_sum_show(struct device *dev,
0467 struct device_attribute *attr,
0468 char *buf)
0469 {
0470 struct ufs_hba *hba = dev_get_drvdata(dev);
0471
0472 return sysfs_emit(buf, "%llu\n",
0473 ktime_to_us(hba->monitor.lat_sum[WRITE]));
0474 }
0475
0476 static DEVICE_ATTR_RW(monitor_enable);
0477 static DEVICE_ATTR_RW(monitor_chunk_size);
0478 static DEVICE_ATTR_RO(read_total_sectors);
0479 static DEVICE_ATTR_RO(read_total_busy);
0480 static DEVICE_ATTR_RO(read_nr_requests);
0481 static DEVICE_ATTR_RO(read_req_latency_avg);
0482 static DEVICE_ATTR_RO(read_req_latency_max);
0483 static DEVICE_ATTR_RO(read_req_latency_min);
0484 static DEVICE_ATTR_RO(read_req_latency_sum);
0485 static DEVICE_ATTR_RO(write_total_sectors);
0486 static DEVICE_ATTR_RO(write_total_busy);
0487 static DEVICE_ATTR_RO(write_nr_requests);
0488 static DEVICE_ATTR_RO(write_req_latency_avg);
0489 static DEVICE_ATTR_RO(write_req_latency_max);
0490 static DEVICE_ATTR_RO(write_req_latency_min);
0491 static DEVICE_ATTR_RO(write_req_latency_sum);
0492
0493 static struct attribute *ufs_sysfs_monitor_attrs[] = {
0494 &dev_attr_monitor_enable.attr,
0495 &dev_attr_monitor_chunk_size.attr,
0496 &dev_attr_read_total_sectors.attr,
0497 &dev_attr_read_total_busy.attr,
0498 &dev_attr_read_nr_requests.attr,
0499 &dev_attr_read_req_latency_avg.attr,
0500 &dev_attr_read_req_latency_max.attr,
0501 &dev_attr_read_req_latency_min.attr,
0502 &dev_attr_read_req_latency_sum.attr,
0503 &dev_attr_write_total_sectors.attr,
0504 &dev_attr_write_total_busy.attr,
0505 &dev_attr_write_nr_requests.attr,
0506 &dev_attr_write_req_latency_avg.attr,
0507 &dev_attr_write_req_latency_max.attr,
0508 &dev_attr_write_req_latency_min.attr,
0509 &dev_attr_write_req_latency_sum.attr,
0510 NULL
0511 };
0512
0513 static const struct attribute_group ufs_sysfs_monitor_group = {
0514 .name = "monitor",
0515 .attrs = ufs_sysfs_monitor_attrs,
0516 };
0517
0518 static ssize_t ufs_sysfs_read_desc_param(struct ufs_hba *hba,
0519 enum desc_idn desc_id,
0520 u8 desc_index,
0521 u8 param_offset,
0522 u8 *sysfs_buf,
0523 u8 param_size)
0524 {
0525 u8 desc_buf[8] = {0};
0526 int ret;
0527
0528 if (param_size > 8)
0529 return -EINVAL;
0530
0531 down(&hba->host_sem);
0532 if (!ufshcd_is_user_access_allowed(hba)) {
0533 ret = -EBUSY;
0534 goto out;
0535 }
0536
0537 ufshcd_rpm_get_sync(hba);
0538 ret = ufshcd_read_desc_param(hba, desc_id, desc_index,
0539 param_offset, desc_buf, param_size);
0540 ufshcd_rpm_put_sync(hba);
0541 if (ret) {
0542 ret = -EINVAL;
0543 goto out;
0544 }
0545
0546 switch (param_size) {
0547 case 1:
0548 ret = sysfs_emit(sysfs_buf, "0x%02X\n", *desc_buf);
0549 break;
0550 case 2:
0551 ret = sysfs_emit(sysfs_buf, "0x%04X\n",
0552 get_unaligned_be16(desc_buf));
0553 break;
0554 case 4:
0555 ret = sysfs_emit(sysfs_buf, "0x%08X\n",
0556 get_unaligned_be32(desc_buf));
0557 break;
0558 case 8:
0559 ret = sysfs_emit(sysfs_buf, "0x%016llX\n",
0560 get_unaligned_be64(desc_buf));
0561 break;
0562 }
0563
0564 out:
0565 up(&hba->host_sem);
0566 return ret;
0567 }
0568
0569 #define UFS_DESC_PARAM(_name, _puname, _duname, _size) \
0570 static ssize_t _name##_show(struct device *dev, \
0571 struct device_attribute *attr, char *buf) \
0572 { \
0573 struct ufs_hba *hba = dev_get_drvdata(dev); \
0574 return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_##_duname, \
0575 0, _duname##_DESC_PARAM##_puname, buf, _size); \
0576 } \
0577 static DEVICE_ATTR_RO(_name)
0578
0579 #define UFS_DEVICE_DESC_PARAM(_name, _uname, _size) \
0580 UFS_DESC_PARAM(_name, _uname, DEVICE, _size)
0581
0582 UFS_DEVICE_DESC_PARAM(device_type, _DEVICE_TYPE, 1);
0583 UFS_DEVICE_DESC_PARAM(device_class, _DEVICE_CLASS, 1);
0584 UFS_DEVICE_DESC_PARAM(device_sub_class, _DEVICE_SUB_CLASS, 1);
0585 UFS_DEVICE_DESC_PARAM(protocol, _PRTCL, 1);
0586 UFS_DEVICE_DESC_PARAM(number_of_luns, _NUM_LU, 1);
0587 UFS_DEVICE_DESC_PARAM(number_of_wluns, _NUM_WLU, 1);
0588 UFS_DEVICE_DESC_PARAM(boot_enable, _BOOT_ENBL, 1);
0589 UFS_DEVICE_DESC_PARAM(descriptor_access_enable, _DESC_ACCSS_ENBL, 1);
0590 UFS_DEVICE_DESC_PARAM(initial_power_mode, _INIT_PWR_MODE, 1);
0591 UFS_DEVICE_DESC_PARAM(high_priority_lun, _HIGH_PR_LUN, 1);
0592 UFS_DEVICE_DESC_PARAM(secure_removal_type, _SEC_RMV_TYPE, 1);
0593 UFS_DEVICE_DESC_PARAM(support_security_lun, _SEC_LU, 1);
0594 UFS_DEVICE_DESC_PARAM(bkops_termination_latency, _BKOP_TERM_LT, 1);
0595 UFS_DEVICE_DESC_PARAM(initial_active_icc_level, _ACTVE_ICC_LVL, 1);
0596 UFS_DEVICE_DESC_PARAM(specification_version, _SPEC_VER, 2);
0597 UFS_DEVICE_DESC_PARAM(manufacturing_date, _MANF_DATE, 2);
0598 UFS_DEVICE_DESC_PARAM(manufacturer_id, _MANF_ID, 2);
0599 UFS_DEVICE_DESC_PARAM(rtt_capability, _RTT_CAP, 1);
0600 UFS_DEVICE_DESC_PARAM(rtc_update, _FRQ_RTC, 2);
0601 UFS_DEVICE_DESC_PARAM(ufs_features, _UFS_FEAT, 1);
0602 UFS_DEVICE_DESC_PARAM(ffu_timeout, _FFU_TMT, 1);
0603 UFS_DEVICE_DESC_PARAM(queue_depth, _Q_DPTH, 1);
0604 UFS_DEVICE_DESC_PARAM(device_version, _DEV_VER, 2);
0605 UFS_DEVICE_DESC_PARAM(number_of_secure_wpa, _NUM_SEC_WPA, 1);
0606 UFS_DEVICE_DESC_PARAM(psa_max_data_size, _PSA_MAX_DATA, 4);
0607 UFS_DEVICE_DESC_PARAM(psa_state_timeout, _PSA_TMT, 1);
0608 UFS_DEVICE_DESC_PARAM(hpb_version, _HPB_VER, 2);
0609 UFS_DEVICE_DESC_PARAM(hpb_control, _HPB_CONTROL, 1);
0610 UFS_DEVICE_DESC_PARAM(ext_feature_sup, _EXT_UFS_FEATURE_SUP, 4);
0611 UFS_DEVICE_DESC_PARAM(wb_presv_us_en, _WB_PRESRV_USRSPC_EN, 1);
0612 UFS_DEVICE_DESC_PARAM(wb_type, _WB_TYPE, 1);
0613 UFS_DEVICE_DESC_PARAM(wb_shared_alloc_units, _WB_SHARED_ALLOC_UNITS, 4);
0614
0615 static struct attribute *ufs_sysfs_device_descriptor[] = {
0616 &dev_attr_device_type.attr,
0617 &dev_attr_device_class.attr,
0618 &dev_attr_device_sub_class.attr,
0619 &dev_attr_protocol.attr,
0620 &dev_attr_number_of_luns.attr,
0621 &dev_attr_number_of_wluns.attr,
0622 &dev_attr_boot_enable.attr,
0623 &dev_attr_descriptor_access_enable.attr,
0624 &dev_attr_initial_power_mode.attr,
0625 &dev_attr_high_priority_lun.attr,
0626 &dev_attr_secure_removal_type.attr,
0627 &dev_attr_support_security_lun.attr,
0628 &dev_attr_bkops_termination_latency.attr,
0629 &dev_attr_initial_active_icc_level.attr,
0630 &dev_attr_specification_version.attr,
0631 &dev_attr_manufacturing_date.attr,
0632 &dev_attr_manufacturer_id.attr,
0633 &dev_attr_rtt_capability.attr,
0634 &dev_attr_rtc_update.attr,
0635 &dev_attr_ufs_features.attr,
0636 &dev_attr_ffu_timeout.attr,
0637 &dev_attr_queue_depth.attr,
0638 &dev_attr_device_version.attr,
0639 &dev_attr_number_of_secure_wpa.attr,
0640 &dev_attr_psa_max_data_size.attr,
0641 &dev_attr_psa_state_timeout.attr,
0642 &dev_attr_hpb_version.attr,
0643 &dev_attr_hpb_control.attr,
0644 &dev_attr_ext_feature_sup.attr,
0645 &dev_attr_wb_presv_us_en.attr,
0646 &dev_attr_wb_type.attr,
0647 &dev_attr_wb_shared_alloc_units.attr,
0648 NULL,
0649 };
0650
0651 static const struct attribute_group ufs_sysfs_device_descriptor_group = {
0652 .name = "device_descriptor",
0653 .attrs = ufs_sysfs_device_descriptor,
0654 };
0655
0656 #define UFS_INTERCONNECT_DESC_PARAM(_name, _uname, _size) \
0657 UFS_DESC_PARAM(_name, _uname, INTERCONNECT, _size)
0658
0659 UFS_INTERCONNECT_DESC_PARAM(unipro_version, _UNIPRO_VER, 2);
0660 UFS_INTERCONNECT_DESC_PARAM(mphy_version, _MPHY_VER, 2);
0661
0662 static struct attribute *ufs_sysfs_interconnect_descriptor[] = {
0663 &dev_attr_unipro_version.attr,
0664 &dev_attr_mphy_version.attr,
0665 NULL,
0666 };
0667
0668 static const struct attribute_group ufs_sysfs_interconnect_descriptor_group = {
0669 .name = "interconnect_descriptor",
0670 .attrs = ufs_sysfs_interconnect_descriptor,
0671 };
0672
0673 #define UFS_GEOMETRY_DESC_PARAM(_name, _uname, _size) \
0674 UFS_DESC_PARAM(_name, _uname, GEOMETRY, _size)
0675
0676 UFS_GEOMETRY_DESC_PARAM(raw_device_capacity, _DEV_CAP, 8);
0677 UFS_GEOMETRY_DESC_PARAM(max_number_of_luns, _MAX_NUM_LUN, 1);
0678 UFS_GEOMETRY_DESC_PARAM(segment_size, _SEG_SIZE, 4);
0679 UFS_GEOMETRY_DESC_PARAM(allocation_unit_size, _ALLOC_UNIT_SIZE, 1);
0680 UFS_GEOMETRY_DESC_PARAM(min_addressable_block_size, _MIN_BLK_SIZE, 1);
0681 UFS_GEOMETRY_DESC_PARAM(optimal_read_block_size, _OPT_RD_BLK_SIZE, 1);
0682 UFS_GEOMETRY_DESC_PARAM(optimal_write_block_size, _OPT_WR_BLK_SIZE, 1);
0683 UFS_GEOMETRY_DESC_PARAM(max_in_buffer_size, _MAX_IN_BUF_SIZE, 1);
0684 UFS_GEOMETRY_DESC_PARAM(max_out_buffer_size, _MAX_OUT_BUF_SIZE, 1);
0685 UFS_GEOMETRY_DESC_PARAM(rpmb_rw_size, _RPMB_RW_SIZE, 1);
0686 UFS_GEOMETRY_DESC_PARAM(dyn_capacity_resource_policy, _DYN_CAP_RSRC_PLC, 1);
0687 UFS_GEOMETRY_DESC_PARAM(data_ordering, _DATA_ORDER, 1);
0688 UFS_GEOMETRY_DESC_PARAM(max_number_of_contexts, _MAX_NUM_CTX, 1);
0689 UFS_GEOMETRY_DESC_PARAM(sys_data_tag_unit_size, _TAG_UNIT_SIZE, 1);
0690 UFS_GEOMETRY_DESC_PARAM(sys_data_tag_resource_size, _TAG_RSRC_SIZE, 1);
0691 UFS_GEOMETRY_DESC_PARAM(secure_removal_types, _SEC_RM_TYPES, 1);
0692 UFS_GEOMETRY_DESC_PARAM(memory_types, _MEM_TYPES, 2);
0693 UFS_GEOMETRY_DESC_PARAM(sys_code_memory_max_alloc_units,
0694 _SCM_MAX_NUM_UNITS, 4);
0695 UFS_GEOMETRY_DESC_PARAM(sys_code_memory_capacity_adjustment_factor,
0696 _SCM_CAP_ADJ_FCTR, 2);
0697 UFS_GEOMETRY_DESC_PARAM(non_persist_memory_max_alloc_units,
0698 _NPM_MAX_NUM_UNITS, 4);
0699 UFS_GEOMETRY_DESC_PARAM(non_persist_memory_capacity_adjustment_factor,
0700 _NPM_CAP_ADJ_FCTR, 2);
0701 UFS_GEOMETRY_DESC_PARAM(enh1_memory_max_alloc_units,
0702 _ENM1_MAX_NUM_UNITS, 4);
0703 UFS_GEOMETRY_DESC_PARAM(enh1_memory_capacity_adjustment_factor,
0704 _ENM1_CAP_ADJ_FCTR, 2);
0705 UFS_GEOMETRY_DESC_PARAM(enh2_memory_max_alloc_units,
0706 _ENM2_MAX_NUM_UNITS, 4);
0707 UFS_GEOMETRY_DESC_PARAM(enh2_memory_capacity_adjustment_factor,
0708 _ENM2_CAP_ADJ_FCTR, 2);
0709 UFS_GEOMETRY_DESC_PARAM(enh3_memory_max_alloc_units,
0710 _ENM3_MAX_NUM_UNITS, 4);
0711 UFS_GEOMETRY_DESC_PARAM(enh3_memory_capacity_adjustment_factor,
0712 _ENM3_CAP_ADJ_FCTR, 2);
0713 UFS_GEOMETRY_DESC_PARAM(enh4_memory_max_alloc_units,
0714 _ENM4_MAX_NUM_UNITS, 4);
0715 UFS_GEOMETRY_DESC_PARAM(enh4_memory_capacity_adjustment_factor,
0716 _ENM4_CAP_ADJ_FCTR, 2);
0717 UFS_GEOMETRY_DESC_PARAM(hpb_region_size, _HPB_REGION_SIZE, 1);
0718 UFS_GEOMETRY_DESC_PARAM(hpb_number_lu, _HPB_NUMBER_LU, 1);
0719 UFS_GEOMETRY_DESC_PARAM(hpb_subregion_size, _HPB_SUBREGION_SIZE, 1);
0720 UFS_GEOMETRY_DESC_PARAM(hpb_max_active_regions, _HPB_MAX_ACTIVE_REGS, 2);
0721 UFS_GEOMETRY_DESC_PARAM(wb_max_alloc_units, _WB_MAX_ALLOC_UNITS, 4);
0722 UFS_GEOMETRY_DESC_PARAM(wb_max_wb_luns, _WB_MAX_WB_LUNS, 1);
0723 UFS_GEOMETRY_DESC_PARAM(wb_buff_cap_adj, _WB_BUFF_CAP_ADJ, 1);
0724 UFS_GEOMETRY_DESC_PARAM(wb_sup_red_type, _WB_SUP_RED_TYPE, 1);
0725 UFS_GEOMETRY_DESC_PARAM(wb_sup_wb_type, _WB_SUP_WB_TYPE, 1);
0726
0727
0728 static struct attribute *ufs_sysfs_geometry_descriptor[] = {
0729 &dev_attr_raw_device_capacity.attr,
0730 &dev_attr_max_number_of_luns.attr,
0731 &dev_attr_segment_size.attr,
0732 &dev_attr_allocation_unit_size.attr,
0733 &dev_attr_min_addressable_block_size.attr,
0734 &dev_attr_optimal_read_block_size.attr,
0735 &dev_attr_optimal_write_block_size.attr,
0736 &dev_attr_max_in_buffer_size.attr,
0737 &dev_attr_max_out_buffer_size.attr,
0738 &dev_attr_rpmb_rw_size.attr,
0739 &dev_attr_dyn_capacity_resource_policy.attr,
0740 &dev_attr_data_ordering.attr,
0741 &dev_attr_max_number_of_contexts.attr,
0742 &dev_attr_sys_data_tag_unit_size.attr,
0743 &dev_attr_sys_data_tag_resource_size.attr,
0744 &dev_attr_secure_removal_types.attr,
0745 &dev_attr_memory_types.attr,
0746 &dev_attr_sys_code_memory_max_alloc_units.attr,
0747 &dev_attr_sys_code_memory_capacity_adjustment_factor.attr,
0748 &dev_attr_non_persist_memory_max_alloc_units.attr,
0749 &dev_attr_non_persist_memory_capacity_adjustment_factor.attr,
0750 &dev_attr_enh1_memory_max_alloc_units.attr,
0751 &dev_attr_enh1_memory_capacity_adjustment_factor.attr,
0752 &dev_attr_enh2_memory_max_alloc_units.attr,
0753 &dev_attr_enh2_memory_capacity_adjustment_factor.attr,
0754 &dev_attr_enh3_memory_max_alloc_units.attr,
0755 &dev_attr_enh3_memory_capacity_adjustment_factor.attr,
0756 &dev_attr_enh4_memory_max_alloc_units.attr,
0757 &dev_attr_enh4_memory_capacity_adjustment_factor.attr,
0758 &dev_attr_hpb_region_size.attr,
0759 &dev_attr_hpb_number_lu.attr,
0760 &dev_attr_hpb_subregion_size.attr,
0761 &dev_attr_hpb_max_active_regions.attr,
0762 &dev_attr_wb_max_alloc_units.attr,
0763 &dev_attr_wb_max_wb_luns.attr,
0764 &dev_attr_wb_buff_cap_adj.attr,
0765 &dev_attr_wb_sup_red_type.attr,
0766 &dev_attr_wb_sup_wb_type.attr,
0767 NULL,
0768 };
0769
0770 static const struct attribute_group ufs_sysfs_geometry_descriptor_group = {
0771 .name = "geometry_descriptor",
0772 .attrs = ufs_sysfs_geometry_descriptor,
0773 };
0774
0775 #define UFS_HEALTH_DESC_PARAM(_name, _uname, _size) \
0776 UFS_DESC_PARAM(_name, _uname, HEALTH, _size)
0777
0778 UFS_HEALTH_DESC_PARAM(eol_info, _EOL_INFO, 1);
0779 UFS_HEALTH_DESC_PARAM(life_time_estimation_a, _LIFE_TIME_EST_A, 1);
0780 UFS_HEALTH_DESC_PARAM(life_time_estimation_b, _LIFE_TIME_EST_B, 1);
0781
0782 static struct attribute *ufs_sysfs_health_descriptor[] = {
0783 &dev_attr_eol_info.attr,
0784 &dev_attr_life_time_estimation_a.attr,
0785 &dev_attr_life_time_estimation_b.attr,
0786 NULL,
0787 };
0788
0789 static const struct attribute_group ufs_sysfs_health_descriptor_group = {
0790 .name = "health_descriptor",
0791 .attrs = ufs_sysfs_health_descriptor,
0792 };
0793
0794 #define UFS_POWER_DESC_PARAM(_name, _uname, _index) \
0795 static ssize_t _name##_index##_show(struct device *dev, \
0796 struct device_attribute *attr, char *buf) \
0797 { \
0798 struct ufs_hba *hba = dev_get_drvdata(dev); \
0799 return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_POWER, 0, \
0800 PWR_DESC##_uname##_0 + _index * 2, buf, 2); \
0801 } \
0802 static DEVICE_ATTR_RO(_name##_index)
0803
0804 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 0);
0805 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 1);
0806 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 2);
0807 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 3);
0808 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 4);
0809 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 5);
0810 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 6);
0811 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 7);
0812 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 8);
0813 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 9);
0814 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 10);
0815 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 11);
0816 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 12);
0817 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 13);
0818 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 14);
0819 UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 15);
0820 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 0);
0821 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 1);
0822 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 2);
0823 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 3);
0824 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 4);
0825 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 5);
0826 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 6);
0827 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 7);
0828 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 8);
0829 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 9);
0830 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 10);
0831 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 11);
0832 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 12);
0833 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 13);
0834 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 14);
0835 UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 15);
0836 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 0);
0837 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 1);
0838 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 2);
0839 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 3);
0840 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 4);
0841 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 5);
0842 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 6);
0843 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 7);
0844 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 8);
0845 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 9);
0846 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 10);
0847 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 11);
0848 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 12);
0849 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 13);
0850 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 14);
0851 UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 15);
0852
0853 static struct attribute *ufs_sysfs_power_descriptor[] = {
0854 &dev_attr_active_icc_levels_vcc0.attr,
0855 &dev_attr_active_icc_levels_vcc1.attr,
0856 &dev_attr_active_icc_levels_vcc2.attr,
0857 &dev_attr_active_icc_levels_vcc3.attr,
0858 &dev_attr_active_icc_levels_vcc4.attr,
0859 &dev_attr_active_icc_levels_vcc5.attr,
0860 &dev_attr_active_icc_levels_vcc6.attr,
0861 &dev_attr_active_icc_levels_vcc7.attr,
0862 &dev_attr_active_icc_levels_vcc8.attr,
0863 &dev_attr_active_icc_levels_vcc9.attr,
0864 &dev_attr_active_icc_levels_vcc10.attr,
0865 &dev_attr_active_icc_levels_vcc11.attr,
0866 &dev_attr_active_icc_levels_vcc12.attr,
0867 &dev_attr_active_icc_levels_vcc13.attr,
0868 &dev_attr_active_icc_levels_vcc14.attr,
0869 &dev_attr_active_icc_levels_vcc15.attr,
0870 &dev_attr_active_icc_levels_vccq0.attr,
0871 &dev_attr_active_icc_levels_vccq1.attr,
0872 &dev_attr_active_icc_levels_vccq2.attr,
0873 &dev_attr_active_icc_levels_vccq3.attr,
0874 &dev_attr_active_icc_levels_vccq4.attr,
0875 &dev_attr_active_icc_levels_vccq5.attr,
0876 &dev_attr_active_icc_levels_vccq6.attr,
0877 &dev_attr_active_icc_levels_vccq7.attr,
0878 &dev_attr_active_icc_levels_vccq8.attr,
0879 &dev_attr_active_icc_levels_vccq9.attr,
0880 &dev_attr_active_icc_levels_vccq10.attr,
0881 &dev_attr_active_icc_levels_vccq11.attr,
0882 &dev_attr_active_icc_levels_vccq12.attr,
0883 &dev_attr_active_icc_levels_vccq13.attr,
0884 &dev_attr_active_icc_levels_vccq14.attr,
0885 &dev_attr_active_icc_levels_vccq15.attr,
0886 &dev_attr_active_icc_levels_vccq20.attr,
0887 &dev_attr_active_icc_levels_vccq21.attr,
0888 &dev_attr_active_icc_levels_vccq22.attr,
0889 &dev_attr_active_icc_levels_vccq23.attr,
0890 &dev_attr_active_icc_levels_vccq24.attr,
0891 &dev_attr_active_icc_levels_vccq25.attr,
0892 &dev_attr_active_icc_levels_vccq26.attr,
0893 &dev_attr_active_icc_levels_vccq27.attr,
0894 &dev_attr_active_icc_levels_vccq28.attr,
0895 &dev_attr_active_icc_levels_vccq29.attr,
0896 &dev_attr_active_icc_levels_vccq210.attr,
0897 &dev_attr_active_icc_levels_vccq211.attr,
0898 &dev_attr_active_icc_levels_vccq212.attr,
0899 &dev_attr_active_icc_levels_vccq213.attr,
0900 &dev_attr_active_icc_levels_vccq214.attr,
0901 &dev_attr_active_icc_levels_vccq215.attr,
0902 NULL,
0903 };
0904
0905 static const struct attribute_group ufs_sysfs_power_descriptor_group = {
0906 .name = "power_descriptor",
0907 .attrs = ufs_sysfs_power_descriptor,
0908 };
0909
0910 #define UFS_STRING_DESCRIPTOR(_name, _pname) \
0911 static ssize_t _name##_show(struct device *dev, \
0912 struct device_attribute *attr, char *buf) \
0913 { \
0914 u8 index; \
0915 struct ufs_hba *hba = dev_get_drvdata(dev); \
0916 int ret; \
0917 int desc_len = QUERY_DESC_MAX_SIZE; \
0918 u8 *desc_buf; \
0919 \
0920 down(&hba->host_sem); \
0921 if (!ufshcd_is_user_access_allowed(hba)) { \
0922 up(&hba->host_sem); \
0923 return -EBUSY; \
0924 } \
0925 desc_buf = kzalloc(QUERY_DESC_MAX_SIZE, GFP_ATOMIC); \
0926 if (!desc_buf) { \
0927 up(&hba->host_sem); \
0928 return -ENOMEM; \
0929 } \
0930 ufshcd_rpm_get_sync(hba); \
0931 ret = ufshcd_query_descriptor_retry(hba, \
0932 UPIU_QUERY_OPCODE_READ_DESC, QUERY_DESC_IDN_DEVICE, \
0933 0, 0, desc_buf, &desc_len); \
0934 if (ret) { \
0935 ret = -EINVAL; \
0936 goto out; \
0937 } \
0938 index = desc_buf[DEVICE_DESC_PARAM##_pname]; \
0939 kfree(desc_buf); \
0940 desc_buf = NULL; \
0941 ret = ufshcd_read_string_desc(hba, index, &desc_buf, \
0942 SD_ASCII_STD); \
0943 if (ret < 0) \
0944 goto out; \
0945 ret = sysfs_emit(buf, "%s\n", desc_buf); \
0946 out: \
0947 ufshcd_rpm_put_sync(hba); \
0948 kfree(desc_buf); \
0949 up(&hba->host_sem); \
0950 return ret; \
0951 } \
0952 static DEVICE_ATTR_RO(_name)
0953
0954 UFS_STRING_DESCRIPTOR(manufacturer_name, _MANF_NAME);
0955 UFS_STRING_DESCRIPTOR(product_name, _PRDCT_NAME);
0956 UFS_STRING_DESCRIPTOR(oem_id, _OEM_ID);
0957 UFS_STRING_DESCRIPTOR(serial_number, _SN);
0958 UFS_STRING_DESCRIPTOR(product_revision, _PRDCT_REV);
0959
0960 static struct attribute *ufs_sysfs_string_descriptors[] = {
0961 &dev_attr_manufacturer_name.attr,
0962 &dev_attr_product_name.attr,
0963 &dev_attr_oem_id.attr,
0964 &dev_attr_serial_number.attr,
0965 &dev_attr_product_revision.attr,
0966 NULL,
0967 };
0968
0969 static const struct attribute_group ufs_sysfs_string_descriptors_group = {
0970 .name = "string_descriptors",
0971 .attrs = ufs_sysfs_string_descriptors,
0972 };
0973
0974 static inline bool ufshcd_is_wb_flags(enum flag_idn idn)
0975 {
0976 return idn >= QUERY_FLAG_IDN_WB_EN &&
0977 idn <= QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8;
0978 }
0979
0980 #define UFS_FLAG(_name, _uname) \
0981 static ssize_t _name##_show(struct device *dev, \
0982 struct device_attribute *attr, char *buf) \
0983 { \
0984 bool flag; \
0985 u8 index = 0; \
0986 int ret; \
0987 struct ufs_hba *hba = dev_get_drvdata(dev); \
0988 \
0989 down(&hba->host_sem); \
0990 if (!ufshcd_is_user_access_allowed(hba)) { \
0991 up(&hba->host_sem); \
0992 return -EBUSY; \
0993 } \
0994 if (ufshcd_is_wb_flags(QUERY_FLAG_IDN##_uname)) \
0995 index = ufshcd_wb_get_query_index(hba); \
0996 ufshcd_rpm_get_sync(hba); \
0997 ret = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, \
0998 QUERY_FLAG_IDN##_uname, index, &flag); \
0999 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 }
