| // SPDX-License-Identifier: GPL-2.0 |
| // Copyright (C) 2018 Western Digital Corporation |
| |
| #include <linux/err.h> |
| #include <linux/string.h> |
| #include <linux/bitfield.h> |
| #include <asm/unaligned.h> |
| |
| #include "ufs.h" |
| #include "ufs-sysfs.h" |
| |
| static const char *ufshcd_uic_link_state_to_string( |
| enum uic_link_state state) |
| { |
| switch (state) { |
| case UIC_LINK_OFF_STATE: return "OFF"; |
| case UIC_LINK_ACTIVE_STATE: return "ACTIVE"; |
| case UIC_LINK_HIBERN8_STATE: return "HIBERN8"; |
| case UIC_LINK_BROKEN_STATE: return "BROKEN"; |
| default: return "UNKNOWN"; |
| } |
| } |
| |
| static const char *ufshcd_ufs_dev_pwr_mode_to_string( |
| enum ufs_dev_pwr_mode state) |
| { |
| switch (state) { |
| case UFS_ACTIVE_PWR_MODE: return "ACTIVE"; |
| case UFS_SLEEP_PWR_MODE: return "SLEEP"; |
| case UFS_POWERDOWN_PWR_MODE: return "POWERDOWN"; |
| case UFS_DEEPSLEEP_PWR_MODE: return "DEEPSLEEP"; |
| default: return "UNKNOWN"; |
| } |
| } |
| |
| static inline ssize_t ufs_sysfs_pm_lvl_store(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count, |
| bool rpm) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| struct ufs_dev_info *dev_info = &hba->dev_info; |
| unsigned long flags, value; |
| |
| if (kstrtoul(buf, 0, &value)) |
| return -EINVAL; |
| |
| if (value >= UFS_PM_LVL_MAX) |
| return -EINVAL; |
| |
| if (ufs_pm_lvl_states[value].dev_state == UFS_DEEPSLEEP_PWR_MODE && |
| (!(hba->caps & UFSHCD_CAP_DEEPSLEEP) || |
| !(dev_info->wspecversion >= 0x310))) |
| return -EINVAL; |
| |
| spin_lock_irqsave(hba->host->host_lock, flags); |
| if (rpm) |
| hba->rpm_lvl = value; |
| else |
| hba->spm_lvl = value; |
| spin_unlock_irqrestore(hba->host->host_lock, flags); |
| return count; |
| } |
| |
| static ssize_t rpm_lvl_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%d\n", hba->rpm_lvl); |
| } |
| |
| static ssize_t rpm_lvl_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| return ufs_sysfs_pm_lvl_store(dev, attr, buf, count, true); |
| } |
| |
| static ssize_t rpm_target_dev_state_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%s\n", ufshcd_ufs_dev_pwr_mode_to_string( |
| ufs_pm_lvl_states[hba->rpm_lvl].dev_state)); |
| } |
| |
| static ssize_t rpm_target_link_state_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%s\n", ufshcd_uic_link_state_to_string( |
| ufs_pm_lvl_states[hba->rpm_lvl].link_state)); |
| } |
| |
| static ssize_t spm_lvl_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%d\n", hba->spm_lvl); |
| } |
| |
| static ssize_t spm_lvl_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| return ufs_sysfs_pm_lvl_store(dev, attr, buf, count, false); |
| } |
| |
| static ssize_t spm_target_dev_state_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%s\n", ufshcd_ufs_dev_pwr_mode_to_string( |
| ufs_pm_lvl_states[hba->spm_lvl].dev_state)); |
| } |
| |
| static ssize_t spm_target_link_state_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%s\n", ufshcd_uic_link_state_to_string( |
| ufs_pm_lvl_states[hba->spm_lvl].link_state)); |
| } |
| |
| /* Convert Auto-Hibernate Idle Timer register value to microseconds */ |
| static int ufshcd_ahit_to_us(u32 ahit) |
| { |
| int timer = FIELD_GET(UFSHCI_AHIBERN8_TIMER_MASK, ahit); |
| int scale = FIELD_GET(UFSHCI_AHIBERN8_SCALE_MASK, ahit); |
| |
| for (; scale > 0; --scale) |
| timer *= UFSHCI_AHIBERN8_SCALE_FACTOR; |
| |
| return timer; |
| } |
| |
| /* Convert microseconds to Auto-Hibernate Idle Timer register value */ |
| static u32 ufshcd_us_to_ahit(unsigned int timer) |
| { |
| unsigned int scale; |
| |
| for (scale = 0; timer > UFSHCI_AHIBERN8_TIMER_MASK; ++scale) |
| timer /= UFSHCI_AHIBERN8_SCALE_FACTOR; |
| |
| return FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, timer) | |
| FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, scale); |
| } |
| |
| static ssize_t auto_hibern8_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| u32 ahit; |
| int ret; |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| if (!ufshcd_is_auto_hibern8_supported(hba)) |
| return -EOPNOTSUPP; |
| |
| down(&hba->host_sem); |
| if (!ufshcd_is_user_access_allowed(hba)) { |
| ret = -EBUSY; |
| goto out; |
| } |
| |
| pm_runtime_get_sync(hba->dev); |
| ufshcd_hold(hba, false); |
| ahit = ufshcd_readl(hba, REG_AUTO_HIBERNATE_IDLE_TIMER); |
| ufshcd_release(hba); |
| pm_runtime_put_sync(hba->dev); |
| |
| ret = sysfs_emit(buf, "%d\n", ufshcd_ahit_to_us(ahit)); |
| |
| out: |
| up(&hba->host_sem); |
| return ret; |
| } |
| |
| static ssize_t auto_hibern8_store(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| unsigned int timer; |
| int ret = 0; |
| |
| if (!ufshcd_is_auto_hibern8_supported(hba)) |
| return -EOPNOTSUPP; |
| |
| if (kstrtouint(buf, 0, &timer)) |
| return -EINVAL; |
| |
| if (timer > UFSHCI_AHIBERN8_MAX) |
| return -EINVAL; |
| |
| down(&hba->host_sem); |
| if (!ufshcd_is_user_access_allowed(hba)) { |
| ret = -EBUSY; |
| goto out; |
| } |
| |
| ufshcd_auto_hibern8_update(hba, ufshcd_us_to_ahit(timer)); |
| |
| out: |
| up(&hba->host_sem); |
| return ret ? ret : count; |
| } |
| |
| static ssize_t wb_on_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%d\n", hba->dev_info.wb_enabled); |
| } |
| |
| static ssize_t wb_on_store(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| unsigned int wb_enable; |
| ssize_t res; |
| |
| if (!ufshcd_is_wb_allowed(hba) || ufshcd_is_clkscaling_supported(hba)) { |
| /* |
| * If the platform supports UFSHCD_CAP_CLK_SCALING, turn WB |
| * on/off will be done while clock scaling up/down. |
| */ |
| dev_warn(dev, "To control WB through wb_on is not allowed!\n"); |
| return -EOPNOTSUPP; |
| } |
| |
| if (kstrtouint(buf, 0, &wb_enable)) |
| return -EINVAL; |
| |
| if (wb_enable != 0 && wb_enable != 1) |
| return -EINVAL; |
| |
| down(&hba->host_sem); |
| if (!ufshcd_is_user_access_allowed(hba)) { |
| res = -EBUSY; |
| goto out; |
| } |
| |
| ufshcd_rpm_get_sync(hba); |
| res = ufshcd_wb_toggle(hba, wb_enable); |
| ufshcd_rpm_put_sync(hba); |
| out: |
| up(&hba->host_sem); |
| return res < 0 ? res : count; |
| } |
| |
| static DEVICE_ATTR_RW(rpm_lvl); |
| static DEVICE_ATTR_RO(rpm_target_dev_state); |
| static DEVICE_ATTR_RO(rpm_target_link_state); |
| static DEVICE_ATTR_RW(spm_lvl); |
| static DEVICE_ATTR_RO(spm_target_dev_state); |
| static DEVICE_ATTR_RO(spm_target_link_state); |
| static DEVICE_ATTR_RW(auto_hibern8); |
| static DEVICE_ATTR_RW(wb_on); |
| |
| static struct attribute *ufs_sysfs_ufshcd_attrs[] = { |
| &dev_attr_rpm_lvl.attr, |
| &dev_attr_rpm_target_dev_state.attr, |
| &dev_attr_rpm_target_link_state.attr, |
| &dev_attr_spm_lvl.attr, |
| &dev_attr_spm_target_dev_state.attr, |
| &dev_attr_spm_target_link_state.attr, |
| &dev_attr_auto_hibern8.attr, |
| &dev_attr_wb_on.attr, |
| NULL |
| }; |
| |
| static const struct attribute_group ufs_sysfs_default_group = { |
| .attrs = ufs_sysfs_ufshcd_attrs, |
| }; |
| |
| static ssize_t monitor_enable_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%d\n", hba->monitor.enabled); |
| } |
| |
| static ssize_t monitor_enable_store(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| unsigned long value, flags; |
| |
| if (kstrtoul(buf, 0, &value)) |
| return -EINVAL; |
| |
| value = !!value; |
| spin_lock_irqsave(hba->host->host_lock, flags); |
| if (value == hba->monitor.enabled) |
| goto out_unlock; |
| |
| if (!value) { |
| memset(&hba->monitor, 0, sizeof(hba->monitor)); |
| } else { |
| hba->monitor.enabled = true; |
| hba->monitor.enabled_ts = ktime_get(); |
| } |
| |
| out_unlock: |
| spin_unlock_irqrestore(hba->host->host_lock, flags); |
| return count; |
| } |
| |
| static ssize_t monitor_chunk_size_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%lu\n", hba->monitor.chunk_size); |
| } |
| |
| static ssize_t monitor_chunk_size_store(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| unsigned long value, flags; |
| |
| if (kstrtoul(buf, 0, &value)) |
| return -EINVAL; |
| |
| spin_lock_irqsave(hba->host->host_lock, flags); |
| /* Only allow chunk size change when monitor is disabled */ |
| if (!hba->monitor.enabled) |
| hba->monitor.chunk_size = value; |
| spin_unlock_irqrestore(hba->host->host_lock, flags); |
| return count; |
| } |
| |
| static ssize_t read_total_sectors_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%lu\n", hba->monitor.nr_sec_rw[READ]); |
| } |
| |
| static ssize_t read_total_busy_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%llu\n", |
| ktime_to_us(hba->monitor.total_busy[READ])); |
| } |
| |
| static ssize_t read_nr_requests_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%lu\n", hba->monitor.nr_req[READ]); |
| } |
| |
| static ssize_t read_req_latency_avg_show(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| struct ufs_hba_monitor *m = &hba->monitor; |
| |
| return sysfs_emit(buf, "%llu\n", div_u64(ktime_to_us(m->lat_sum[READ]), |
| m->nr_req[READ])); |
| } |
| |
| static ssize_t read_req_latency_max_show(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%llu\n", |
| ktime_to_us(hba->monitor.lat_max[READ])); |
| } |
| |
| static ssize_t read_req_latency_min_show(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%llu\n", |
| ktime_to_us(hba->monitor.lat_min[READ])); |
| } |
| |
| static ssize_t read_req_latency_sum_show(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%llu\n", |
| ktime_to_us(hba->monitor.lat_sum[READ])); |
| } |
| |
| static ssize_t write_total_sectors_show(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%lu\n", hba->monitor.nr_sec_rw[WRITE]); |
| } |
| |
| static ssize_t write_total_busy_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%llu\n", |
| ktime_to_us(hba->monitor.total_busy[WRITE])); |
| } |
| |
| static ssize_t write_nr_requests_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%lu\n", hba->monitor.nr_req[WRITE]); |
| } |
| |
| static ssize_t write_req_latency_avg_show(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| struct ufs_hba_monitor *m = &hba->monitor; |
| |
| return sysfs_emit(buf, "%llu\n", div_u64(ktime_to_us(m->lat_sum[WRITE]), |
| m->nr_req[WRITE])); |
| } |
| |
| static ssize_t write_req_latency_max_show(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%llu\n", |
| ktime_to_us(hba->monitor.lat_max[WRITE])); |
| } |
| |
| static ssize_t write_req_latency_min_show(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%llu\n", |
| ktime_to_us(hba->monitor.lat_min[WRITE])); |
| } |
| |
| static ssize_t write_req_latency_sum_show(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct ufs_hba *hba = dev_get_drvdata(dev); |
| |
| return sysfs_emit(buf, "%llu\n", |
| ktime_to_us(hba->monitor.lat_sum[WRITE])); |
| } |
| |
| static DEVICE_ATTR_RW(monitor_enable); |
| static DEVICE_ATTR_RW(monitor_chunk_size); |
| static DEVICE_ATTR_RO(read_total_sectors); |
| static DEVICE_ATTR_RO(read_total_busy); |
| static DEVICE_ATTR_RO(read_nr_requests); |
| static DEVICE_ATTR_RO(read_req_latency_avg); |
| static DEVICE_ATTR_RO(read_req_latency_max); |
| static DEVICE_ATTR_RO(read_req_latency_min); |
| static DEVICE_ATTR_RO(read_req_latency_sum); |
| static DEVICE_ATTR_RO(write_total_sectors); |
| static DEVICE_ATTR_RO(write_total_busy); |
| static DEVICE_ATTR_RO(write_nr_requests); |
| static DEVICE_ATTR_RO(write_req_latency_avg); |
| static DEVICE_ATTR_RO(write_req_latency_max); |
| static DEVICE_ATTR_RO(write_req_latency_min); |
| static DEVICE_ATTR_RO(write_req_latency_sum); |
| |
| static struct attribute *ufs_sysfs_monitor_attrs[] = { |
| &dev_attr_monitor_enable.attr, |
| &dev_attr_monitor_chunk_size.attr, |
| &dev_attr_read_total_sectors.attr, |
| &dev_attr_read_total_busy.attr, |
| &dev_attr_read_nr_requests.attr, |
| &dev_attr_read_req_latency_avg.attr, |
| &dev_attr_read_req_latency_max.attr, |
| &dev_attr_read_req_latency_min.attr, |
| &dev_attr_read_req_latency_sum.attr, |
| &dev_attr_write_total_sectors.attr, |
| &dev_attr_write_total_busy.attr, |
| &dev_attr_write_nr_requests.attr, |
| &dev_attr_write_req_latency_avg.attr, |
| &dev_attr_write_req_latency_max.attr, |
| &dev_attr_write_req_latency_min.attr, |
| &dev_attr_write_req_latency_sum.attr, |
| NULL |
| }; |
| |
| static const struct attribute_group ufs_sysfs_monitor_group = { |
| .name = "monitor", |
| .attrs = ufs_sysfs_monitor_attrs, |
| }; |
| |
| static ssize_t ufs_sysfs_read_desc_param(struct ufs_hba *hba, |
| enum desc_idn desc_id, |
| u8 desc_index, |
| u8 param_offset, |
| u8 *sysfs_buf, |
| u8 param_size) |
| { |
| u8 desc_buf[8] = {0}; |
| int ret; |
| |
| if (param_size > 8) |
| return -EINVAL; |
| |
| down(&hba->host_sem); |
| if (!ufshcd_is_user_access_allowed(hba)) { |
| ret = -EBUSY; |
| goto out; |
| } |
| |
| ufshcd_rpm_get_sync(hba); |
| ret = ufshcd_read_desc_param(hba, desc_id, desc_index, |
| param_offset, desc_buf, param_size); |
| ufshcd_rpm_put_sync(hba); |
| if (ret) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| switch (param_size) { |
| case 1: |
| ret = sysfs_emit(sysfs_buf, "0x%02X\n", *desc_buf); |
| break; |
| case 2: |
| ret = sysfs_emit(sysfs_buf, "0x%04X\n", |
| get_unaligned_be16(desc_buf)); |
| break; |
| case 4: |
| ret = sysfs_emit(sysfs_buf, "0x%08X\n", |
| get_unaligned_be32(desc_buf)); |
| break; |
| case 8: |
| ret = sysfs_emit(sysfs_buf, "0x%016llX\n", |
| get_unaligned_be64(desc_buf)); |
| break; |
| } |
| |
| out: |
| up(&hba->host_sem); |
| return ret; |
| } |
| |
| #define UFS_DESC_PARAM(_name, _puname, _duname, _size) \ |
| static ssize_t _name##_show(struct device *dev, \ |
| struct device_attribute *attr, char *buf) \ |
| { \ |
| struct ufs_hba *hba = dev_get_drvdata(dev); \ |
| return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_##_duname, \ |
| 0, _duname##_DESC_PARAM##_puname, buf, _size); \ |
| } \ |
| static DEVICE_ATTR_RO(_name) |
| |
| #define UFS_DEVICE_DESC_PARAM(_name, _uname, _size) \ |
| UFS_DESC_PARAM(_name, _uname, DEVICE, _size) |
| |
| UFS_DEVICE_DESC_PARAM(device_type, _DEVICE_TYPE, 1); |
| UFS_DEVICE_DESC_PARAM(device_class, _DEVICE_CLASS, 1); |
| UFS_DEVICE_DESC_PARAM(device_sub_class, _DEVICE_SUB_CLASS, 1); |
| UFS_DEVICE_DESC_PARAM(protocol, _PRTCL, 1); |
| UFS_DEVICE_DESC_PARAM(number_of_luns, _NUM_LU, 1); |
| UFS_DEVICE_DESC_PARAM(number_of_wluns, _NUM_WLU, 1); |
| UFS_DEVICE_DESC_PARAM(boot_enable, _BOOT_ENBL, 1); |
| UFS_DEVICE_DESC_PARAM(descriptor_access_enable, _DESC_ACCSS_ENBL, 1); |
| UFS_DEVICE_DESC_PARAM(initial_power_mode, _INIT_PWR_MODE, 1); |
| UFS_DEVICE_DESC_PARAM(high_priority_lun, _HIGH_PR_LUN, 1); |
| UFS_DEVICE_DESC_PARAM(secure_removal_type, _SEC_RMV_TYPE, 1); |
| UFS_DEVICE_DESC_PARAM(support_security_lun, _SEC_LU, 1); |
| UFS_DEVICE_DESC_PARAM(bkops_termination_latency, _BKOP_TERM_LT, 1); |
| UFS_DEVICE_DESC_PARAM(initial_active_icc_level, _ACTVE_ICC_LVL, 1); |
| UFS_DEVICE_DESC_PARAM(specification_version, _SPEC_VER, 2); |
| UFS_DEVICE_DESC_PARAM(manufacturing_date, _MANF_DATE, 2); |
| UFS_DEVICE_DESC_PARAM(manufacturer_id, _MANF_ID, 2); |
| UFS_DEVICE_DESC_PARAM(rtt_capability, _RTT_CAP, 1); |
| UFS_DEVICE_DESC_PARAM(rtc_update, _FRQ_RTC, 2); |
| UFS_DEVICE_DESC_PARAM(ufs_features, _UFS_FEAT, 1); |
| UFS_DEVICE_DESC_PARAM(ffu_timeout, _FFU_TMT, 1); |
| UFS_DEVICE_DESC_PARAM(queue_depth, _Q_DPTH, 1); |
| UFS_DEVICE_DESC_PARAM(device_version, _DEV_VER, 2); |
| UFS_DEVICE_DESC_PARAM(number_of_secure_wpa, _NUM_SEC_WPA, 1); |
| UFS_DEVICE_DESC_PARAM(psa_max_data_size, _PSA_MAX_DATA, 4); |
| UFS_DEVICE_DESC_PARAM(psa_state_timeout, _PSA_TMT, 1); |
| UFS_DEVICE_DESC_PARAM(ext_feature_sup, _EXT_UFS_FEATURE_SUP, 4); |
| UFS_DEVICE_DESC_PARAM(wb_presv_us_en, _WB_PRESRV_USRSPC_EN, 1); |
| UFS_DEVICE_DESC_PARAM(wb_type, _WB_TYPE, 1); |
| UFS_DEVICE_DESC_PARAM(wb_shared_alloc_units, _WB_SHARED_ALLOC_UNITS, 4); |
| |
| static struct attribute *ufs_sysfs_device_descriptor[] = { |
| &dev_attr_device_type.attr, |
| &dev_attr_device_class.attr, |
| &dev_attr_device_sub_class.attr, |
| &dev_attr_protocol.attr, |
| &dev_attr_number_of_luns.attr, |
| &dev_attr_number_of_wluns.attr, |
| &dev_attr_boot_enable.attr, |
| &dev_attr_descriptor_access_enable.attr, |
| &dev_attr_initial_power_mode.attr, |
| &dev_attr_high_priority_lun.attr, |
| &dev_attr_secure_removal_type.attr, |
| &dev_attr_support_security_lun.attr, |
| &dev_attr_bkops_termination_latency.attr, |
| &dev_attr_initial_active_icc_level.attr, |
| &dev_attr_specification_version.attr, |
| &dev_attr_manufacturing_date.attr, |
| &dev_attr_manufacturer_id.attr, |
| &dev_attr_rtt_capability.attr, |
| &dev_attr_rtc_update.attr, |
| &dev_attr_ufs_features.attr, |
| &dev_attr_ffu_timeout.attr, |
| &dev_attr_queue_depth.attr, |
| &dev_attr_device_version.attr, |
| &dev_attr_number_of_secure_wpa.attr, |
| &dev_attr_psa_max_data_size.attr, |
| &dev_attr_psa_state_timeout.attr, |
| &dev_attr_ext_feature_sup.attr, |
| &dev_attr_wb_presv_us_en.attr, |
| &dev_attr_wb_type.attr, |
| &dev_attr_wb_shared_alloc_units.attr, |
| NULL, |
| }; |
| |
| static const struct attribute_group ufs_sysfs_device_descriptor_group = { |
| .name = "device_descriptor", |
| .attrs = ufs_sysfs_device_descriptor, |
| }; |
| |
| #define UFS_INTERCONNECT_DESC_PARAM(_name, _uname, _size) \ |
| UFS_DESC_PARAM(_name, _uname, INTERCONNECT, _size) |
| |
| UFS_INTERCONNECT_DESC_PARAM(unipro_version, _UNIPRO_VER, 2); |
| UFS_INTERCONNECT_DESC_PARAM(mphy_version, _MPHY_VER, 2); |
| |
| static struct attribute *ufs_sysfs_interconnect_descriptor[] = { |
| &dev_attr_unipro_version.attr, |
| &dev_attr_mphy_version.attr, |
| NULL, |
| }; |
| |
| static const struct attribute_group ufs_sysfs_interconnect_descriptor_group = { |
| .name = "interconnect_descriptor", |
| .attrs = ufs_sysfs_interconnect_descriptor, |
| }; |
| |
| #define UFS_GEOMETRY_DESC_PARAM(_name, _uname, _size) \ |
| UFS_DESC_PARAM(_name, _uname, GEOMETRY, _size) |
| |
| UFS_GEOMETRY_DESC_PARAM(raw_device_capacity, _DEV_CAP, 8); |
| UFS_GEOMETRY_DESC_PARAM(max_number_of_luns, _MAX_NUM_LUN, 1); |
| UFS_GEOMETRY_DESC_PARAM(segment_size, _SEG_SIZE, 4); |
| UFS_GEOMETRY_DESC_PARAM(allocation_unit_size, _ALLOC_UNIT_SIZE, 1); |
| UFS_GEOMETRY_DESC_PARAM(min_addressable_block_size, _MIN_BLK_SIZE, 1); |
| UFS_GEOMETRY_DESC_PARAM(optimal_read_block_size, _OPT_RD_BLK_SIZE, 1); |
| UFS_GEOMETRY_DESC_PARAM(optimal_write_block_size, _OPT_WR_BLK_SIZE, 1); |
| UFS_GEOMETRY_DESC_PARAM(max_in_buffer_size, _MAX_IN_BUF_SIZE, 1); |
| UFS_GEOMETRY_DESC_PARAM(max_out_buffer_size, _MAX_OUT_BUF_SIZE, 1); |
| UFS_GEOMETRY_DESC_PARAM(rpmb_rw_size, _RPMB_RW_SIZE, 1); |
| UFS_GEOMETRY_DESC_PARAM(dyn_capacity_resource_policy, _DYN_CAP_RSRC_PLC, 1); |
| UFS_GEOMETRY_DESC_PARAM(data_ordering, _DATA_ORDER, 1); |
| UFS_GEOMETRY_DESC_PARAM(max_number_of_contexts, _MAX_NUM_CTX, 1); |
| UFS_GEOMETRY_DESC_PARAM(sys_data_tag_unit_size, _TAG_UNIT_SIZE, 1); |
| UFS_GEOMETRY_DESC_PARAM(sys_data_tag_resource_size, _TAG_RSRC_SIZE, 1); |
| UFS_GEOMETRY_DESC_PARAM(secure_removal_types, _SEC_RM_TYPES, 1); |
| UFS_GEOMETRY_DESC_PARAM(memory_types, _MEM_TYPES, 2); |
| UFS_GEOMETRY_DESC_PARAM(sys_code_memory_max_alloc_units, |
| _SCM_MAX_NUM_UNITS, 4); |
| UFS_GEOMETRY_DESC_PARAM(sys_code_memory_capacity_adjustment_factor, |
| _SCM_CAP_ADJ_FCTR, 2); |
| UFS_GEOMETRY_DESC_PARAM(non_persist_memory_max_alloc_units, |
| _NPM_MAX_NUM_UNITS, 4); |
| UFS_GEOMETRY_DESC_PARAM(non_persist_memory_capacity_adjustment_factor, |
| _NPM_CAP_ADJ_FCTR, 2); |
| UFS_GEOMETRY_DESC_PARAM(enh1_memory_max_alloc_units, |
| _ENM1_MAX_NUM_UNITS, 4); |
| UFS_GEOMETRY_DESC_PARAM(enh1_memory_capacity_adjustment_factor, |
| _ENM1_CAP_ADJ_FCTR, 2); |
| UFS_GEOMETRY_DESC_PARAM(enh2_memory_max_alloc_units, |
| _ENM2_MAX_NUM_UNITS, 4); |
| UFS_GEOMETRY_DESC_PARAM(enh2_memory_capacity_adjustment_factor, |
| _ENM2_CAP_ADJ_FCTR, 2); |
| UFS_GEOMETRY_DESC_PARAM(enh3_memory_max_alloc_units, |
| _ENM3_MAX_NUM_UNITS, 4); |
| UFS_GEOMETRY_DESC_PARAM(enh3_memory_capacity_adjustment_factor, |
| _ENM3_CAP_ADJ_FCTR, 2); |
| UFS_GEOMETRY_DESC_PARAM(enh4_memory_max_alloc_units, |
| _ENM4_MAX_NUM_UNITS, 4); |
| UFS_GEOMETRY_DESC_PARAM(enh4_memory_capacity_adjustment_factor, |
| _ENM4_CAP_ADJ_FCTR, 2); |
| UFS_GEOMETRY_DESC_PARAM(wb_max_alloc_units, _WB_MAX_ALLOC_UNITS, 4); |
| UFS_GEOMETRY_DESC_PARAM(wb_max_wb_luns, _WB_MAX_WB_LUNS, 1); |
| UFS_GEOMETRY_DESC_PARAM(wb_buff_cap_adj, _WB_BUFF_CAP_ADJ, 1); |
| UFS_GEOMETRY_DESC_PARAM(wb_sup_red_type, _WB_SUP_RED_TYPE, 1); |
| UFS_GEOMETRY_DESC_PARAM(wb_sup_wb_type, _WB_SUP_WB_TYPE, 1); |
| |
| |
| static struct attribute *ufs_sysfs_geometry_descriptor[] = { |
| &dev_attr_raw_device_capacity.attr, |
| &dev_attr_max_number_of_luns.attr, |
| &dev_attr_segment_size.attr, |
| &dev_attr_allocation_unit_size.attr, |
| &dev_attr_min_addressable_block_size.attr, |
| &dev_attr_optimal_read_block_size.attr, |
| &dev_attr_optimal_write_block_size.attr, |
| &dev_attr_max_in_buffer_size.attr, |
| &dev_attr_max_out_buffer_size.attr, |
| &dev_attr_rpmb_rw_size.attr, |
| &dev_attr_dyn_capacity_resource_policy.attr, |
| &dev_attr_data_ordering.attr, |
| &dev_attr_max_number_of_contexts.attr, |
| &dev_attr_sys_data_tag_unit_size.attr, |
| &dev_attr_sys_data_tag_resource_size.attr, |
| &dev_attr_secure_removal_types.attr, |
| &dev_attr_memory_types.attr, |
| &dev_attr_sys_code_memory_max_alloc_units.attr, |
| &dev_attr_sys_code_memory_capacity_adjustment_factor.attr, |
| &dev_attr_non_persist_memory_max_alloc_units.attr, |
| &dev_attr_non_persist_memory_capacity_adjustment_factor.attr, |
| &dev_attr_enh1_memory_max_alloc_units.attr, |
| &dev_attr_enh1_memory_capacity_adjustment_factor.attr, |
| &dev_attr_enh2_memory_max_alloc_units.attr, |
| &dev_attr_enh2_memory_capacity_adjustment_factor.attr, |
| &dev_attr_enh3_memory_max_alloc_units.attr, |
| &dev_attr_enh3_memory_capacity_adjustment_factor.attr, |
| &dev_attr_enh4_memory_max_alloc_units.attr, |
| &dev_attr_enh4_memory_capacity_adjustment_factor.attr, |
| &dev_attr_wb_max_alloc_units.attr, |
| &dev_attr_wb_max_wb_luns.attr, |
| &dev_attr_wb_buff_cap_adj.attr, |
| &dev_attr_wb_sup_red_type.attr, |
| &dev_attr_wb_sup_wb_type.attr, |
| NULL, |
| }; |
| |
| static const struct attribute_group ufs_sysfs_geometry_descriptor_group = { |
| .name = "geometry_descriptor", |
| .attrs = ufs_sysfs_geometry_descriptor, |
| }; |
| |
| #define UFS_HEALTH_DESC_PARAM(_name, _uname, _size) \ |
| UFS_DESC_PARAM(_name, _uname, HEALTH, _size) |
| |
| UFS_HEALTH_DESC_PARAM(eol_info, _EOL_INFO, 1); |
| UFS_HEALTH_DESC_PARAM(life_time_estimation_a, _LIFE_TIME_EST_A, 1); |
| UFS_HEALTH_DESC_PARAM(life_time_estimation_b, _LIFE_TIME_EST_B, 1); |
| |
| static struct attribute *ufs_sysfs_health_descriptor[] = { |
| &dev_attr_eol_info.attr, |
| &dev_attr_life_time_estimation_a.attr, |
| &dev_attr_life_time_estimation_b.attr, |
| NULL, |
| }; |
| |
| static const struct attribute_group ufs_sysfs_health_descriptor_group = { |
| .name = "health_descriptor", |
| .attrs = ufs_sysfs_health_descriptor, |
| }; |
| |
| #define UFS_POWER_DESC_PARAM(_name, _uname, _index) \ |
| static ssize_t _name##_index##_show(struct device *dev, \ |
| struct device_attribute *attr, char *buf) \ |
| { \ |
| struct ufs_hba *hba = dev_get_drvdata(dev); \ |
| return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_POWER, 0, \ |
| PWR_DESC##_uname##_0 + _index * 2, buf, 2); \ |
| } \ |
| static DEVICE_ATTR_RO(_name##_index) |
| |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 0); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 1); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 2); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 3); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 4); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 5); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 6); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 7); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 8); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 9); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 10); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 11); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 12); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 13); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 14); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 15); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 0); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 1); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 2); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 3); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 4); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 5); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 6); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 7); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 8); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 9); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 10); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 11); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 12); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 13); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 14); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 15); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 0); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 1); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 2); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 3); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 4); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 5); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 6); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 7); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 8); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 9); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 10); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 11); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 12); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 13); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 14); |
| UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 15); |
| |
| static struct attribute *ufs_sysfs_power_descriptor[] = { |
| &dev_attr_active_icc_levels_vcc0.attr, |
| &dev_attr_active_icc_levels_vcc1.attr, |
| &dev_attr_active_icc_levels_vcc2.attr, |
| &dev_attr_active_icc_levels_vcc3.attr, |
| &dev_attr_active_icc_levels_vcc4.attr, |
| &dev_attr_active_icc_levels_vcc5.attr, |
| &dev_attr_active_icc_levels_vcc6.attr, |
| &dev_attr_active_icc_levels_vcc7.attr, |
| &dev_attr_active_icc_levels_vcc8.attr, |
| &dev_attr_active_icc_levels_vcc9.attr, |
| &dev_attr_active_icc_levels_vcc10.attr, |
| &dev_attr_active_icc_levels_vcc11.attr, |
| &dev_attr_active_icc_levels_vcc12.attr, |
| &dev_attr_active_icc_levels_vcc13.attr, |
| &dev_attr_active_icc_levels_vcc14.attr, |
| &dev_attr_active_icc_levels_vcc15.attr, |
| &dev_attr_active_icc_levels_vccq0.attr, |
| &dev_attr_active_icc_levels_vccq1.attr, |
| &dev_attr_active_icc_levels_vccq2.attr, |
| &dev_attr_active_icc_levels_vccq3.attr, |
| &dev_attr_active_icc_levels_vccq4.attr, |
| &dev_attr_active_icc_levels_vccq5.attr, |
| &dev_attr_active_icc_levels_vccq6.attr, |
| &dev_attr_active_icc_levels_vccq7.attr, |
| &dev_attr_active_icc_levels_vccq8.attr, |
| &dev_attr_active_icc_levels_vccq9.attr, |
| &dev_attr_active_icc_levels_vccq10.attr, |
| &dev_attr_active_icc_levels_vccq11.attr, |
| &dev_attr_active_icc_levels_vccq12.attr, |
| &dev_attr_active_icc_levels_vccq13.attr, |
| &dev_attr_active_icc_levels_vccq14.attr, |
| &dev_attr_active_icc_levels_vccq15.attr, |
| &dev_attr_active_icc_levels_vccq20.attr, |
| &dev_attr_active_icc_levels_vccq21.attr, |
| &dev_attr_active_icc_levels_vccq22.attr, |
| &dev_attr_active_icc_levels_vccq23.attr, |
| &dev_attr_active_icc_levels_vccq24.attr, |
| &dev_attr_active_icc_levels_vccq25.attr, |
| &dev_attr_active_icc_levels_vccq26.attr, |
| &dev_attr_active_icc_levels_vccq27.attr, |
| &dev_attr_active_icc_levels_vccq28.attr, |
| &dev_attr_active_icc_levels_vccq29.attr, |
| &dev_attr_active_icc_levels_vccq210.attr, |
| &dev_attr_active_icc_levels_vccq211.attr, |
| &dev_attr_active_icc_levels_vccq212.attr, |
| &dev_attr_active_icc_levels_vccq213.attr, |
| &dev_attr_active_icc_levels_vccq214.attr, |
| &dev_attr_active_icc_levels_vccq215.attr, |
| NULL, |
| }; |
| |
| static const struct attribute_group ufs_sysfs_power_descriptor_group = { |
| .name = "power_descriptor", |
| .attrs = ufs_sysfs_power_descriptor, |
| }; |
| |
| #define UFS_STRING_DESCRIPTOR(_name, _pname) \ |
| static ssize_t _name##_show(struct device *dev, \ |
| struct device_attribute *attr, char *buf) \ |
| { \ |
| u8 index; \ |
| struct ufs_hba *hba = dev_get_drvdata(dev); \ |
| int ret; \ |
| int desc_len = QUERY_DESC_MAX_SIZE; \ |
| u8 *desc_buf; \ |
| \ |
| down(&hba->host_sem); \ |
| if (!ufshcd_is_user_access_allowed(hba)) { \ |
| up(&hba->host_sem); \ |
| return -EBUSY; \ |
| } \ |
| desc_buf = kzalloc(QUERY_DESC_MAX_SIZE, GFP_ATOMIC); \ |
| if (!desc_buf) { \ |
| up(&hba->host_sem); \ |
| return -ENOMEM; \ |
| } \ |
| ufshcd_rpm_get_sync(hba); \ |
| ret = ufshcd_query_descriptor_retry(hba, \ |
| UPIU_QUERY_OPCODE_READ_DESC, QUERY_DESC_IDN_DEVICE, \ |
| 0, 0, desc_buf, &desc_len); \ |
| if (ret) { \ |
| ret = -EINVAL; \ |
| goto out; \ |
| } \ |
| index = desc_buf[DEVICE_DESC_PARAM##_pname]; \ |
| kfree(desc_buf); \ |
| desc_buf = NULL; \ |
| ret = ufshcd_read_string_desc(hba, index, &desc_buf, \ |
| SD_ASCII_STD); \ |
| if (ret < 0) \ |
| goto out; \ |
| ret = sysfs_emit(buf, "%s\n", desc_buf); \ |
| out: \ |
| ufshcd_rpm_put_sync(hba); \ |
| kfree(desc_buf); \ |
| up(&hba->host_sem); \ |
| return ret; \ |
| } \ |
| static DEVICE_ATTR_RO(_name) |
| |
| UFS_STRING_DESCRIPTOR(manufacturer_name, _MANF_NAME); |
| UFS_STRING_DESCRIPTOR(product_name, _PRDCT_NAME); |
| UFS_STRING_DESCRIPTOR(oem_id, _OEM_ID); |
| UFS_STRING_DESCRIPTOR(serial_number, _SN); |
| UFS_STRING_DESCRIPTOR(product_revision, _PRDCT_REV); |
| |
| static struct attribute *ufs_sysfs_string_descriptors[] = { |
| &dev_attr_manufacturer_name.attr, |
| &dev_attr_product_name.attr, |
| &dev_attr_oem_id.attr, |
| &dev_attr_serial_number.attr, |
| &dev_attr_product_revision.attr, |
| NULL, |
| }; |
| |
| static const struct attribute_group ufs_sysfs_string_descriptors_group = { |
| .name = "string_descriptors", |
| .attrs = ufs_sysfs_string_descriptors, |
| }; |
| |
| static inline bool ufshcd_is_wb_flags(enum flag_idn idn) |
| { |
| return idn >= QUERY_FLAG_IDN_WB_EN && |
| idn <= QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8; |
| } |
| |
| #define UFS_FLAG(_name, _uname) \ |
| static ssize_t _name##_show(struct device *dev, \ |
| struct device_attribute *attr, char *buf) \ |
| { \ |
| bool flag; \ |
| u8 index = 0; \ |
| int ret; \ |
| struct ufs_hba *hba = dev_get_drvdata(dev); \ |
| \ |
| down(&hba->host_sem); \ |
| if (!ufshcd_is_user_access_allowed(hba)) { \ |
| up(&hba->host_sem); \ |
| return -EBUSY; \ |
| } \ |
| if (ufshcd_is_wb_flags(QUERY_FLAG_IDN##_uname)) \ |
| index = ufshcd_wb_get_query_index(hba); \ |
| ufshcd_rpm_get_sync(hba); \ |
| ret = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, \ |
| QUERY_FLAG_IDN##_uname, index, &flag); \ |
| ufshcd_rpm_put_sync(hba); \ |
| if (ret) { \ |
| ret = -EINVAL; \ |
| goto out; \ |
| } \ |
| ret = sysfs_emit(buf, "%s\n", flag ? "true" : "false"); \ |
| out: \ |
| up(&hba->host_sem); \ |
| return ret; \ |
| } \ |
| static DEVICE_ATTR_RO(_name) |
| |
| UFS_FLAG(device_init, _FDEVICEINIT); |
| UFS_FLAG(permanent_wpe, _PERMANENT_WPE); |
| UFS_FLAG(power_on_wpe, _PWR_ON_WPE); |
| UFS_FLAG(bkops_enable, _BKOPS_EN); |
| UFS_FLAG(life_span_mode_enable, _LIFE_SPAN_MODE_ENABLE); |
| UFS_FLAG(phy_resource_removal, _FPHYRESOURCEREMOVAL); |
| UFS_FLAG(busy_rtc, _BUSY_RTC); |
| UFS_FLAG(disable_fw_update, _PERMANENTLY_DISABLE_FW_UPDATE); |
| UFS_FLAG(wb_enable, _WB_EN); |
| UFS_FLAG(wb_flush_en, _WB_BUFF_FLUSH_EN); |
| UFS_FLAG(wb_flush_during_h8, _WB_BUFF_FLUSH_DURING_HIBERN8); |
| |
| static struct attribute *ufs_sysfs_device_flags[] = { |
| &dev_attr_device_init.attr, |
| &dev_attr_permanent_wpe.attr, |
| &dev_attr_power_on_wpe.attr, |
| &dev_attr_bkops_enable.attr, |
| &dev_attr_life_span_mode_enable.attr, |
| &dev_attr_phy_resource_removal.attr, |
| &dev_attr_busy_rtc.attr, |
| &dev_attr_disable_fw_update.attr, |
| &dev_attr_wb_enable.attr, |
| &dev_attr_wb_flush_en.attr, |
| &dev_attr_wb_flush_during_h8.attr, |
| NULL, |
| }; |
| |
| static const struct attribute_group ufs_sysfs_flags_group = { |
| .name = "flags", |
| .attrs = ufs_sysfs_device_flags, |
| }; |
| |
| static inline bool ufshcd_is_wb_attrs(enum attr_idn idn) |
| { |
| return idn >= QUERY_ATTR_IDN_WB_FLUSH_STATUS && |
| idn <= QUERY_ATTR_IDN_CURR_WB_BUFF_SIZE; |
| } |
| |
| #define UFS_ATTRIBUTE(_name, _uname) \ |
| static ssize_t _name##_show(struct device *dev, \ |
| struct device_attribute *attr, char *buf) \ |
| { \ |
| struct ufs_hba *hba = dev_get_drvdata(dev); \ |
| u32 value; \ |
| int ret; \ |
| u8 index = 0; \ |
| \ |
| down(&hba->host_sem); \ |
| if (!ufshcd_is_user_access_allowed(hba)) { \ |
| up(&hba->host_sem); \ |
| return -EBUSY; \ |
| } \ |
| if (ufshcd_is_wb_attrs(QUERY_ATTR_IDN##_uname)) \ |
| index = ufshcd_wb_get_query_index(hba); \ |
| ufshcd_rpm_get_sync(hba); \ |
| ret = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR, \ |
| QUERY_ATTR_IDN##_uname, index, 0, &value); \ |
| ufshcd_rpm_put_sync(hba); \ |
| if (ret) { \ |
| ret = -EINVAL; \ |
| goto out; \ |
| } \ |
| ret = sysfs_emit(buf, "0x%08X\n", value); \ |
| out: \ |
| up(&hba->host_sem); \ |
| return ret; \ |
| } \ |
| static DEVICE_ATTR_RO(_name) |
| |
| UFS_ATTRIBUTE(boot_lun_enabled, _BOOT_LU_EN); |
| UFS_ATTRIBUTE(current_power_mode, _POWER_MODE); |
| UFS_ATTRIBUTE(active_icc_level, _ACTIVE_ICC_LVL); |
| UFS_ATTRIBUTE(ooo_data_enabled, _OOO_DATA_EN); |
| UFS_ATTRIBUTE(bkops_status, _BKOPS_STATUS); |
| UFS_ATTRIBUTE(purge_status, _PURGE_STATUS); |
| UFS_ATTRIBUTE(max_data_in_size, _MAX_DATA_IN); |
| UFS_ATTRIBUTE(max_data_out_size, _MAX_DATA_OUT); |
| UFS_ATTRIBUTE(reference_clock_frequency, _REF_CLK_FREQ); |
| UFS_ATTRIBUTE(configuration_descriptor_lock, _CONF_DESC_LOCK); |
| UFS_ATTRIBUTE(max_number_of_rtt, _MAX_NUM_OF_RTT); |
| UFS_ATTRIBUTE(exception_event_control, _EE_CONTROL); |
| UFS_ATTRIBUTE(exception_event_status, _EE_STATUS); |
| UFS_ATTRIBUTE(ffu_status, _FFU_STATUS); |
| UFS_ATTRIBUTE(psa_state, _PSA_STATE); |
| UFS_ATTRIBUTE(psa_data_size, _PSA_DATA_SIZE); |
| UFS_ATTRIBUTE(wb_flush_status, _WB_FLUSH_STATUS); |
| UFS_ATTRIBUTE(wb_avail_buf, _AVAIL_WB_BUFF_SIZE); |
| UFS_ATTRIBUTE(wb_life_time_est, _WB_BUFF_LIFE_TIME_EST); |
| UFS_ATTRIBUTE(wb_cur_buf, _CURR_WB_BUFF_SIZE); |
| |
| |
| static struct attribute *ufs_sysfs_attributes[] = { |
| &dev_attr_boot_lun_enabled.attr, |
| &dev_attr_current_power_mode.attr, |
| &dev_attr_active_icc_level.attr, |
| &dev_attr_ooo_data_enabled.attr, |
| &dev_attr_bkops_status.attr, |
| &dev_attr_purge_status.attr, |
| &dev_attr_max_data_in_size.attr, |
| &dev_attr_max_data_out_size.attr, |
| &dev_attr_reference_clock_frequency.attr, |
| &dev_attr_configuration_descriptor_lock.attr, |
| &dev_attr_max_number_of_rtt.attr, |
| &dev_attr_exception_event_control.attr, |
| &dev_attr_exception_event_status.attr, |
| &dev_attr_ffu_status.attr, |
| &dev_attr_psa_state.attr, |
| &dev_attr_psa_data_size.attr, |
| &dev_attr_wb_flush_status.attr, |
| &dev_attr_wb_avail_buf.attr, |
| &dev_attr_wb_life_time_est.attr, |
| &dev_attr_wb_cur_buf.attr, |
| NULL, |
| }; |
| |
| static const struct attribute_group ufs_sysfs_attributes_group = { |
| .name = "attributes", |
| .attrs = ufs_sysfs_attributes, |
| }; |
| |
| static const struct attribute_group *ufs_sysfs_groups[] = { |
| &ufs_sysfs_default_group, |
| &ufs_sysfs_monitor_group, |
| &ufs_sysfs_device_descriptor_group, |
| &ufs_sysfs_interconnect_descriptor_group, |
| &ufs_sysfs_geometry_descriptor_group, |
| &ufs_sysfs_health_descriptor_group, |
| &ufs_sysfs_power_descriptor_group, |
| &ufs_sysfs_string_descriptors_group, |
| &ufs_sysfs_flags_group, |
| &ufs_sysfs_attributes_group, |
| NULL, |
| }; |
| |
| #define UFS_LUN_DESC_PARAM(_pname, _puname, _duname, _size) \ |
| static ssize_t _pname##_show(struct device *dev, \ |
| struct device_attribute *attr, char *buf) \ |
| { \ |
| struct scsi_device *sdev = to_scsi_device(dev); \ |
| struct ufs_hba *hba = shost_priv(sdev->host); \ |
| u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun); \ |
| if (!ufs_is_valid_unit_desc_lun(&hba->dev_info, lun, \ |
| _duname##_DESC_PARAM##_puname)) \ |
| return -EINVAL; \ |
| return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_##_duname, \ |
| lun, _duname##_DESC_PARAM##_puname, buf, _size); \ |
| } \ |
| static DEVICE_ATTR_RO(_pname) |
| |
| #define UFS_UNIT_DESC_PARAM(_name, _uname, _size) \ |
| UFS_LUN_DESC_PARAM(_name, _uname, UNIT, _size) |
| |
| UFS_UNIT_DESC_PARAM(boot_lun_id, _BOOT_LUN_ID, 1); |
| UFS_UNIT_DESC_PARAM(lun_write_protect, _LU_WR_PROTECT, 1); |
| UFS_UNIT_DESC_PARAM(lun_queue_depth, _LU_Q_DEPTH, 1); |
| UFS_UNIT_DESC_PARAM(psa_sensitive, _PSA_SENSITIVE, 1); |
| UFS_UNIT_DESC_PARAM(lun_memory_type, _MEM_TYPE, 1); |
| UFS_UNIT_DESC_PARAM(data_reliability, _DATA_RELIABILITY, 1); |
| UFS_UNIT_DESC_PARAM(logical_block_size, _LOGICAL_BLK_SIZE, 1); |
| UFS_UNIT_DESC_PARAM(logical_block_count, _LOGICAL_BLK_COUNT, 8); |
| UFS_UNIT_DESC_PARAM(erase_block_size, _ERASE_BLK_SIZE, 4); |
| UFS_UNIT_DESC_PARAM(provisioning_type, _PROVISIONING_TYPE, 1); |
| UFS_UNIT_DESC_PARAM(physical_memory_resourse_count, _PHY_MEM_RSRC_CNT, 8); |
| UFS_UNIT_DESC_PARAM(context_capabilities, _CTX_CAPABILITIES, 2); |
| UFS_UNIT_DESC_PARAM(large_unit_granularity, _LARGE_UNIT_SIZE_M1, 1); |
| UFS_UNIT_DESC_PARAM(wb_buf_alloc_units, _WB_BUF_ALLOC_UNITS, 4); |
| |
| |
| static struct attribute *ufs_sysfs_unit_descriptor[] = { |
| &dev_attr_boot_lun_id.attr, |
| &dev_attr_lun_write_protect.attr, |
| &dev_attr_lun_queue_depth.attr, |
| &dev_attr_psa_sensitive.attr, |
| &dev_attr_lun_memory_type.attr, |
| &dev_attr_data_reliability.attr, |
| &dev_attr_logical_block_size.attr, |
| &dev_attr_logical_block_count.attr, |
| &dev_attr_erase_block_size.attr, |
| &dev_attr_provisioning_type.attr, |
| &dev_attr_physical_memory_resourse_count.attr, |
| &dev_attr_context_capabilities.attr, |
| &dev_attr_large_unit_granularity.attr, |
| &dev_attr_wb_buf_alloc_units.attr, |
| NULL, |
| }; |
| |
| const struct attribute_group ufs_sysfs_unit_descriptor_group = { |
| .name = "unit_descriptor", |
| .attrs = ufs_sysfs_unit_descriptor, |
| }; |
| |
| static ssize_t dyn_cap_needed_attribute_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| u32 value; |
| struct scsi_device *sdev = to_scsi_device(dev); |
| struct ufs_hba *hba = shost_priv(sdev->host); |
| u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun); |
| int ret; |
| |
| down(&hba->host_sem); |
| if (!ufshcd_is_user_access_allowed(hba)) { |
| ret = -EBUSY; |
| goto out; |
| } |
| |
| ufshcd_rpm_get_sync(hba); |
| ret = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR, |
| QUERY_ATTR_IDN_DYN_CAP_NEEDED, lun, 0, &value); |
| ufshcd_rpm_put_sync(hba); |
| if (ret) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| ret = sysfs_emit(buf, "0x%08X\n", value); |
| |
| out: |
| up(&hba->host_sem); |
| return ret; |
| } |
| static DEVICE_ATTR_RO(dyn_cap_needed_attribute); |
| |
| static struct attribute *ufs_sysfs_lun_attributes[] = { |
| &dev_attr_dyn_cap_needed_attribute.attr, |
| NULL, |
| }; |
| |
| const struct attribute_group ufs_sysfs_lun_attributes_group = { |
| .attrs = ufs_sysfs_lun_attributes, |
| }; |
| |
| void ufs_sysfs_add_nodes(struct device *dev) |
| { |
| int ret; |
| |
| ret = sysfs_create_groups(&dev->kobj, ufs_sysfs_groups); |
| if (ret) |
| dev_err(dev, |
| "%s: sysfs groups creation failed (err = %d)\n", |
| __func__, ret); |
| } |
| |
| void ufs_sysfs_remove_nodes(struct device *dev) |
| { |
| sysfs_remove_groups(&dev->kobj, ufs_sysfs_groups); |
| } |
