Lines Matching +full:non +full:- +full:urgent
1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2011-2013 Samsung India Software Operations
5 * Copyright (c) 2013-2016, The Linux Foundation. All rights reserved.
17 #include <linux/blk-pm.h>
31 #include "ufshcd-priv.h"
34 #include "ufs-sysfs.h"
35 #include "ufs-debugfs.h"
36 #include "ufs-fault-injection.h"
38 #include "ufshcd-crypto.h"
76 /* maximum number of link-startup retries */
114 return hba->mcq_sup && use_mcq_mode; in is_mcq_supported()
118 …mode, "Control MCQ mode for controllers starting from UFSHCI 4.0. 1 - enable MCQ, 0 - disable MCQ.…
178 return -EINVAL; in ufshcd_dump_regs()
182 return -ENOMEM; in ufshcd_dump_regs()
229 ((h)->eh_flags |= UFSHCD_EH_IN_PROGRESS)
231 ((h)->eh_flags & UFSHCD_EH_IN_PROGRESS)
233 ((h)->eh_flags &= ~UFSHCD_EH_IN_PROGRESS)
279 return hba->outstanding_tasks || hba->active_uic_cmd || in ufshcd_has_pending_tasks()
280 hba->uic_async_done; in ufshcd_has_pending_tasks()
285 return scsi_host_busy(hba->host) || ufshcd_has_pending_tasks(hba); in ufshcd_is_ufs_dev_busy()
349 if (!hba->is_irq_enabled) { in ufshcd_enable_irq()
350 enable_irq(hba->irq); in ufshcd_enable_irq()
351 hba->is_irq_enabled = true; in ufshcd_enable_irq()
358 if (hba->is_irq_enabled) { in ufshcd_disable_irq()
359 disable_irq(hba->irq); in ufshcd_disable_irq()
360 hba->is_irq_enabled = false; in ufshcd_disable_irq()
366 * ufshcd_enable_intr - enable interrupts
380 * ufshcd_disable_intr - disable interrupts
409 struct utp_upiu_req *rq = hba->lrb[tag].ucd_req_ptr; in ufshcd_add_cmd_upiu_trace()
416 header = &rq->header; in ufshcd_add_cmd_upiu_trace()
418 header = &hba->lrb[tag].ucd_rsp_ptr->header; in ufshcd_add_cmd_upiu_trace()
420 trace_ufshcd_upiu(hba, str_t, header, &rq->sc.cdb, in ufshcd_add_cmd_upiu_trace()
431 trace_ufshcd_upiu(hba, str_t, &rq_rsp->header, in ufshcd_add_query_upiu_trace()
432 &rq_rsp->qr, UFS_TSF_OSF); in ufshcd_add_query_upiu_trace()
438 struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[tag]; in ufshcd_add_tm_upiu_trace()
445 &descp->upiu_req.req_header, in ufshcd_add_tm_upiu_trace()
446 &descp->upiu_req.input_param1, in ufshcd_add_tm_upiu_trace()
450 &descp->upiu_rsp.rsp_header, in ufshcd_add_tm_upiu_trace()
451 &descp->upiu_rsp.output_param1, in ufshcd_add_tm_upiu_trace()
465 cmd = ucmd->command; in ufshcd_add_uic_command_trace()
483 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_add_command_trace()
484 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_add_command_trace()
486 int transfer_len = -1; in ufshcd_add_command_trace()
496 opcode = cmd->cmnd[0]; in ufshcd_add_command_trace()
503 be32_to_cpu(lrbp->ucd_req_ptr->sc.exp_data_transfer_len); in ufshcd_add_command_trace()
506 group_id = lrbp->cmd->cmnd[6]; in ufshcd_add_command_trace()
517 if (hba->mcq_enabled) { in ufshcd_add_command_trace()
520 hwq_id = hwq->id; in ufshcd_add_command_trace()
524 trace_ufshcd_command(cmd->device, hba, str_t, tag, doorbell, hwq_id, in ufshcd_add_command_trace()
531 struct list_head *head = &hba->clk_list_head; in ufshcd_print_clk_freqs()
537 if (!IS_ERR_OR_NULL(clki->clk) && clki->min_freq && in ufshcd_print_clk_freqs()
538 clki->max_freq) in ufshcd_print_clk_freqs()
539 dev_err(hba->dev, "clk: %s, rate: %u\n", in ufshcd_print_clk_freqs()
540 clki->name, clki->curr_freq); in ufshcd_print_clk_freqs()
554 e = &hba->ufs_stats.event[id]; in ufshcd_print_evt()
557 int p = (i + e->pos) % UFS_EVENT_HIST_LENGTH; in ufshcd_print_evt()
559 if (e->tstamp[p] == 0) in ufshcd_print_evt()
561 dev_err(hba->dev, "%s[%d] = 0x%x at %lld us\n", err_name, p, in ufshcd_print_evt()
562 e->val[p], div_u64(e->tstamp[p], 1000)); in ufshcd_print_evt()
567 dev_err(hba->dev, "No record of %s\n", err_name); in ufshcd_print_evt()
569 dev_err(hba->dev, "%s: total cnt=%llu\n", err_name, e->cnt); in ufshcd_print_evt()
605 lrbp = &hba->lrb[tag]; in ufshcd_print_tr()
607 if (hba->monitor.enabled) { in ufshcd_print_tr()
608 dev_err(hba->dev, "UPIU[%d] - issue time %lld us\n", tag, in ufshcd_print_tr()
609 div_u64(lrbp->issue_time_stamp_local_clock, 1000)); in ufshcd_print_tr()
610 dev_err(hba->dev, "UPIU[%d] - complete time %lld us\n", tag, in ufshcd_print_tr()
611 div_u64(lrbp->compl_time_stamp_local_clock, 1000)); in ufshcd_print_tr()
613 dev_err(hba->dev, in ufshcd_print_tr()
614 "UPIU[%d] - Transfer Request Descriptor phys@0x%llx\n", in ufshcd_print_tr()
615 tag, (u64)lrbp->utrd_dma_addr); in ufshcd_print_tr()
617 ufshcd_hex_dump("UPIU TRD: ", lrbp->utr_descriptor_ptr, in ufshcd_print_tr()
619 dev_err(hba->dev, "UPIU[%d] - Request UPIU phys@0x%llx\n", tag, in ufshcd_print_tr()
620 (u64)lrbp->ucd_req_dma_addr); in ufshcd_print_tr()
621 ufshcd_hex_dump("UPIU REQ: ", lrbp->ucd_req_ptr, in ufshcd_print_tr()
623 dev_err(hba->dev, "UPIU[%d] - Response UPIU phys@0x%llx\n", tag, in ufshcd_print_tr()
624 (u64)lrbp->ucd_rsp_dma_addr); in ufshcd_print_tr()
625 ufshcd_hex_dump("UPIU RSP: ", lrbp->ucd_rsp_ptr, in ufshcd_print_tr()
629 lrbp->utr_descriptor_ptr->prd_table_length); in ufshcd_print_tr()
630 if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) in ufshcd_print_tr()
633 dev_err(hba->dev, in ufshcd_print_tr()
634 "UPIU[%d] - PRDT - %d entries phys@0x%llx\n", in ufshcd_print_tr()
636 (u64)lrbp->ucd_prdt_dma_addr); in ufshcd_print_tr()
639 ufshcd_hex_dump("UPIU PRDT: ", lrbp->ucd_prdt_ptr, in ufshcd_print_tr()
645 struct scsi_device *sdev = req->q->queuedata; in ufshcd_print_tr_iter()
646 struct Scsi_Host *shost = sdev->host; in ufshcd_print_tr_iter()
649 ufshcd_print_tr(hba, req->tag, *(bool *)priv); in ufshcd_print_tr_iter()
655 * ufshcd_print_trs_all - print trs for all started requests.
656 * @hba: per-adapter instance.
661 blk_mq_tagset_busy_iter(&hba->host->tag_set, ufshcd_print_tr_iter, &pr_prdt); in ufshcd_print_trs_all()
668 for_each_set_bit(tag, &bitmap, hba->nutmrs) { in ufshcd_print_tmrs()
669 struct utp_task_req_desc *tmrdp = &hba->utmrdl_base_addr[tag]; in ufshcd_print_tmrs()
671 dev_err(hba->dev, "TM[%d] - Task Management Header\n", tag); in ufshcd_print_tmrs()
678 const struct scsi_device *sdev_ufs = hba->ufs_device_wlun; in ufshcd_print_host_state()
680 dev_err(hba->dev, "UFS Host state=%d\n", hba->ufshcd_state); in ufshcd_print_host_state()
681 dev_err(hba->dev, "%d outstanding reqs, tasks=0x%lx\n", in ufshcd_print_host_state()
682 scsi_host_busy(hba->host), hba->outstanding_tasks); in ufshcd_print_host_state()
683 dev_err(hba->dev, "saved_err=0x%x, saved_uic_err=0x%x\n", in ufshcd_print_host_state()
684 hba->saved_err, hba->saved_uic_err); in ufshcd_print_host_state()
685 dev_err(hba->dev, "Device power mode=%d, UIC link state=%d\n", in ufshcd_print_host_state()
686 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_print_host_state()
687 dev_err(hba->dev, "PM in progress=%d, sys. suspended=%d\n", in ufshcd_print_host_state()
688 hba->pm_op_in_progress, hba->is_sys_suspended); in ufshcd_print_host_state()
689 dev_err(hba->dev, "Auto BKOPS=%d, Host self-block=%d\n", in ufshcd_print_host_state()
690 hba->auto_bkops_enabled, hba->host->host_self_blocked); in ufshcd_print_host_state()
691 dev_err(hba->dev, "Clk gate=%d\n", hba->clk_gating.state); in ufshcd_print_host_state()
692 dev_err(hba->dev, in ufshcd_print_host_state()
694 div_u64(hba->ufs_stats.last_hibern8_exit_tstamp, 1000), in ufshcd_print_host_state()
695 hba->ufs_stats.hibern8_exit_cnt); in ufshcd_print_host_state()
696 dev_err(hba->dev, "error handling flags=0x%x, req. abort count=%d\n", in ufshcd_print_host_state()
697 hba->eh_flags, hba->req_abort_count); in ufshcd_print_host_state()
698 dev_err(hba->dev, "hba->ufs_version=0x%x, Host capabilities=0x%x, caps=0x%x\n", in ufshcd_print_host_state()
699 hba->ufs_version, hba->capabilities, hba->caps); in ufshcd_print_host_state()
700 dev_err(hba->dev, "quirks=0x%x, dev. quirks=0x%x\n", hba->quirks, in ufshcd_print_host_state()
701 hba->dev_quirks); in ufshcd_print_host_state()
703 dev_err(hba->dev, "UFS dev info: %.8s %.16s rev %.4s\n", in ufshcd_print_host_state()
704 sdev_ufs->vendor, sdev_ufs->model, sdev_ufs->rev); in ufshcd_print_host_state()
710 * ufshcd_print_pwr_info - print power params as saved in hba
712 * @hba: per-adapter instance
728 * never-ending cycles of messages written back to storage by user space in ufshcd_print_pwr_info()
731 dev_dbg(hba->dev, "%s:[RX, TX]: gear=[%d, %d], lane[%d, %d], pwr[%s, %s], rate = %d\n", in ufshcd_print_pwr_info()
733 hba->pwr_info.gear_rx, hba->pwr_info.gear_tx, in ufshcd_print_pwr_info()
734 hba->pwr_info.lane_rx, hba->pwr_info.lane_tx, in ufshcd_print_pwr_info()
735 names[hba->pwr_info.pwr_rx], in ufshcd_print_pwr_info()
736 names[hba->pwr_info.pwr_tx], in ufshcd_print_pwr_info()
737 hba->pwr_info.hs_rate); in ufshcd_print_pwr_info()
749 hba->dev_info.wb_enabled = false; in ufshcd_device_reset()
750 hba->dev_info.wb_buf_flush_enabled = false; in ufshcd_device_reset()
752 if (hba->dev_info.rtc_type == UFS_RTC_RELATIVE) in ufshcd_device_reset()
753 hba->dev_info.rtc_time_baseline = 0; in ufshcd_device_reset()
755 if (err != -EOPNOTSUPP) in ufshcd_device_reset()
772 * ufshcd_wait_for_register - wait for register value to change
773 * @hba: per-adapter interface
780 * Return: -ETIMEDOUT on error, zero on success.
795 * ufshcd_get_intr_mask - Get the interrupt bit mask
802 if (hba->ufs_version <= ufshci_version(2, 0)) in ufshcd_get_intr_mask()
809 * ufshcd_get_ufs_version - Get the UFS version supported by the HBA
818 if (hba->quirks & UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION) in ufshcd_get_ufs_version()
835 * ufshcd_is_device_present - Check if any device connected to
847 * ufshcd_get_tr_ocs - Get the UTRD Overall Command Status
859 return le32_to_cpu(cqe->status) & MASK_OCS; in ufshcd_get_tr_ocs()
861 return lrbp->utr_descriptor_ptr->header.ocs & MASK_OCS; in ufshcd_get_tr_ocs()
865 * ufshcd_utrl_clear() - Clear requests from the controller request list.
871 if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR) in ufshcd_utrl_clear()
890 * ufshcd_utmrl_clear - Clear a bit in UTMRLCLR register
896 if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR) in ufshcd_utmrl_clear()
903 * ufshcd_get_lists_status - Check UCRDY, UTRLRDY and UTMRLRDY
914 * ufshcd_get_uic_cmd_result - Get the UIC command result
919 * Return: 0 on success; non-zero value on error.
928 * ufshcd_get_dme_attr_val - Get the value of attribute returned by UIC command
933 * Return: 0 on success; non-zero value on error.
941 * ufshcd_get_req_rsp - returns the TR response transaction type
949 return ucd_rsp_ptr->header.transaction_code; in ufshcd_get_req_rsp()
953 * ufshcd_is_exception_event - Check if the device raised an exception event
963 return ucd_rsp_ptr->header.device_information & 1; in ufshcd_is_exception_event()
967 * ufshcd_reset_intr_aggr - Reset interrupt aggregation values.
979 * ufshcd_config_intr_aggr - Configure interrupt aggregation values.
994 * ufshcd_disable_intr_aggr - Disables interrupt aggregation.
1003 * ufshcd_enable_run_stop_reg - Enable run-stop registers,
1004 * When run-stop registers are set to 1, it indicates the
1017 * ufshcd_hba_start - Start controller initialization sequence
1031 * ufshcd_is_hba_active - Get controller state
1043 * ufshcd_pm_qos_init - initialize PM QoS request
1048 guard(mutex)(&hba->pm_qos_mutex); in ufshcd_pm_qos_init()
1050 if (hba->pm_qos_enabled) in ufshcd_pm_qos_init()
1053 cpu_latency_qos_add_request(&hba->pm_qos_req, PM_QOS_DEFAULT_VALUE); in ufshcd_pm_qos_init()
1055 if (cpu_latency_qos_request_active(&hba->pm_qos_req)) in ufshcd_pm_qos_init()
1056 hba->pm_qos_enabled = true; in ufshcd_pm_qos_init()
1060 * ufshcd_pm_qos_exit - remove request from PM QoS
1065 guard(mutex)(&hba->pm_qos_mutex); in ufshcd_pm_qos_exit()
1067 if (!hba->pm_qos_enabled) in ufshcd_pm_qos_exit()
1070 cpu_latency_qos_remove_request(&hba->pm_qos_req); in ufshcd_pm_qos_exit()
1071 hba->pm_qos_enabled = false; in ufshcd_pm_qos_exit()
1075 * ufshcd_pm_qos_update - update PM QoS request
1081 guard(mutex)(&hba->pm_qos_mutex); in ufshcd_pm_qos_update()
1083 if (!hba->pm_qos_enabled) in ufshcd_pm_qos_update()
1086 cpu_latency_qos_update_request(&hba->pm_qos_req, on ? 0 : PM_QOS_DEFAULT_VALUE); in ufshcd_pm_qos_update()
1090 * ufshcd_set_clk_freq - set UFS controller clock frequencies
1100 struct list_head *head = &hba->clk_list_head; in ufshcd_set_clk_freq()
1106 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_set_clk_freq()
1107 if (scale_up && clki->max_freq) { in ufshcd_set_clk_freq()
1108 if (clki->curr_freq == clki->max_freq) in ufshcd_set_clk_freq()
1111 ret = clk_set_rate(clki->clk, clki->max_freq); in ufshcd_set_clk_freq()
1113 dev_err(hba->dev, "%s: %s clk set rate(%dHz) failed, %d\n", in ufshcd_set_clk_freq()
1114 __func__, clki->name, in ufshcd_set_clk_freq()
1115 clki->max_freq, ret); in ufshcd_set_clk_freq()
1119 "scaled up", clki->name, in ufshcd_set_clk_freq()
1120 clki->curr_freq, in ufshcd_set_clk_freq()
1121 clki->max_freq); in ufshcd_set_clk_freq()
1123 clki->curr_freq = clki->max_freq; in ufshcd_set_clk_freq()
1125 } else if (!scale_up && clki->min_freq) { in ufshcd_set_clk_freq()
1126 if (clki->curr_freq == clki->min_freq) in ufshcd_set_clk_freq()
1129 ret = clk_set_rate(clki->clk, clki->min_freq); in ufshcd_set_clk_freq()
1131 dev_err(hba->dev, "%s: %s clk set rate(%dHz) failed, %d\n", in ufshcd_set_clk_freq()
1132 __func__, clki->name, in ufshcd_set_clk_freq()
1133 clki->min_freq, ret); in ufshcd_set_clk_freq()
1137 "scaled down", clki->name, in ufshcd_set_clk_freq()
1138 clki->curr_freq, in ufshcd_set_clk_freq()
1139 clki->min_freq); in ufshcd_set_clk_freq()
1140 clki->curr_freq = clki->min_freq; in ufshcd_set_clk_freq()
1143 dev_dbg(hba->dev, "%s: clk: %s, rate: %lu\n", __func__, in ufshcd_set_clk_freq()
1144 clki->name, clk_get_rate(clki->clk)); in ufshcd_set_clk_freq()
1156 struct list_head *head = &hba->clk_list_head; in ufshcd_opp_config_clks()
1163 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_opp_config_clks()
1170 ret = clk_set_rate(clki->clk, freq); in ufshcd_opp_config_clks()
1173 __func__, clki->name, freq, ret); in ufshcd_opp_config_clks()
1179 clki->name, hba->clk_scaling.target_freq, freq); in ufshcd_opp_config_clks()
1192 opp = dev_pm_opp_find_freq_floor_indexed(hba->dev, in ufshcd_opp_set_rate()
1197 ret = dev_pm_opp_set_opp(hba->dev, opp); in ufshcd_opp_set_rate()
1204 * ufshcd_scale_clks - scale up or scale down UFS controller clocks
1221 if (hba->use_pm_opp) in ufshcd_scale_clks()
1230 if (hba->use_pm_opp) in ufshcd_scale_clks()
1232 hba->devfreq->previous_freq); in ufshcd_scale_clks()
1248 * ufshcd_is_devfreq_scaling_required - check if scaling is required or not
1259 struct list_head *head = &hba->clk_list_head; in ufshcd_is_devfreq_scaling_required()
1264 if (hba->use_pm_opp) in ufshcd_is_devfreq_scaling_required()
1265 return freq != hba->clk_scaling.target_freq; in ufshcd_is_devfreq_scaling_required()
1268 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_is_devfreq_scaling_required()
1269 if (scale_up && clki->max_freq) { in ufshcd_is_devfreq_scaling_required()
1270 if (clki->curr_freq == clki->max_freq) in ufshcd_is_devfreq_scaling_required()
1273 } else if (!scale_up && clki->min_freq) { in ufshcd_is_devfreq_scaling_required()
1274 if (clki->curr_freq == clki->min_freq) in ufshcd_is_devfreq_scaling_required()
1297 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_pending_cmds()
1298 __shost_for_each_device(sdev, hba->host) in ufshcd_pending_cmds()
1299 pending += sbitmap_weight(&sdev->budget_map); in ufshcd_pending_cmds()
1300 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_pending_cmds()
1309 * Return: 0 upon success; -EBUSY upon timeout.
1327 if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) { in ufshcd_wait_for_pending_cmds()
1328 ret = -EBUSY; in ufshcd_wait_for_pending_cmds()
1355 dev_err(hba->dev, in ufshcd_wait_for_pending_cmds()
1358 ret = -EBUSY; in ufshcd_wait_for_pending_cmds()
1366 * ufshcd_scale_gear - scale up/down UFS gear
1371 * Return: 0 for success; -EBUSY if scaling can't happen at this time;
1372 * non-zero for any other errors.
1380 new_pwr_info = hba->pwr_info; in ufshcd_scale_gear()
1389 memcpy(&new_pwr_info, &hba->clk_scaling.saved_pwr_info, in ufshcd_scale_gear()
1392 memcpy(&new_pwr_info, &hba->pwr_info, in ufshcd_scale_gear()
1395 if (hba->pwr_info.gear_tx > hba->clk_scaling.min_gear || in ufshcd_scale_gear()
1396 hba->pwr_info.gear_rx > hba->clk_scaling.min_gear) { in ufshcd_scale_gear()
1398 memcpy(&hba->clk_scaling.saved_pwr_info, in ufshcd_scale_gear()
1399 &hba->pwr_info, in ufshcd_scale_gear()
1403 new_pwr_info.gear_tx = hba->clk_scaling.min_gear; in ufshcd_scale_gear()
1404 new_pwr_info.gear_rx = hba->clk_scaling.min_gear; in ufshcd_scale_gear()
1412 dev_err(hba->dev, "%s: failed err %d, old gear: (tx %d rx %d), new gear: (tx %d rx %d)", in ufshcd_scale_gear()
1414 hba->pwr_info.gear_tx, hba->pwr_info.gear_rx, in ufshcd_scale_gear()
1424 * Return: 0 upon success; -EBUSY upon timeout.
1433 mutex_lock(&hba->host->scan_mutex); in ufshcd_clock_scaling_prepare()
1434 blk_mq_quiesce_tagset(&hba->host->tag_set); in ufshcd_clock_scaling_prepare()
1435 mutex_lock(&hba->wb_mutex); in ufshcd_clock_scaling_prepare()
1436 down_write(&hba->clk_scaling_lock); in ufshcd_clock_scaling_prepare()
1438 if (!hba->clk_scaling.is_allowed || in ufshcd_clock_scaling_prepare()
1440 ret = -EBUSY; in ufshcd_clock_scaling_prepare()
1441 up_write(&hba->clk_scaling_lock); in ufshcd_clock_scaling_prepare()
1442 mutex_unlock(&hba->wb_mutex); in ufshcd_clock_scaling_prepare()
1443 blk_mq_unquiesce_tagset(&hba->host->tag_set); in ufshcd_clock_scaling_prepare()
1444 mutex_unlock(&hba->host->scan_mutex); in ufshcd_clock_scaling_prepare()
1457 up_write(&hba->clk_scaling_lock); in ufshcd_clock_scaling_unprepare()
1461 ufshcd_wb_toggle(hba, hba->pwr_info.gear_rx >= hba->clk_scaling.wb_gear); in ufshcd_clock_scaling_unprepare()
1463 mutex_unlock(&hba->wb_mutex); in ufshcd_clock_scaling_unprepare()
1465 blk_mq_unquiesce_tagset(&hba->host->tag_set); in ufshcd_clock_scaling_unprepare()
1466 mutex_unlock(&hba->host->scan_mutex); in ufshcd_clock_scaling_unprepare()
1471 * ufshcd_devfreq_scale - scale up/down UFS clocks and gear
1476 * Return: 0 for success; -EBUSY if scaling can't happen at this time; non-zero
1482 u32 old_gear = hba->pwr_info.gear_rx; in ufshcd_devfreq_scale()
1510 ufshcd_scale_clks(hba, hba->devfreq->previous_freq, in ufshcd_devfreq_scale()
1526 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_clk_scaling_suspend_work()
1528 if (hba->clk_scaling.active_reqs || in ufshcd_clk_scaling_suspend_work()
1529 hba->clk_scaling.is_suspended) in ufshcd_clk_scaling_suspend_work()
1532 hba->clk_scaling.is_suspended = true; in ufshcd_clk_scaling_suspend_work()
1533 hba->clk_scaling.window_start_t = 0; in ufshcd_clk_scaling_suspend_work()
1536 devfreq_suspend_device(hba->devfreq); in ufshcd_clk_scaling_suspend_work()
1544 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_clk_scaling_resume_work()
1546 if (!hba->clk_scaling.is_suspended) in ufshcd_clk_scaling_resume_work()
1548 hba->clk_scaling.is_suspended = false; in ufshcd_clk_scaling_resume_work()
1551 devfreq_resume_device(hba->devfreq); in ufshcd_clk_scaling_resume_work()
1561 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_target()
1565 return -EINVAL; in ufshcd_devfreq_target()
1567 if (hba->use_pm_opp) { in ufshcd_devfreq_target()
1578 clki = list_first_entry(&hba->clk_list_head, struct ufs_clk_info, in ufshcd_devfreq_target()
1580 *freq = (unsigned long) clk_round_rate(clki->clk, *freq); in ufshcd_devfreq_target()
1583 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_devfreq_target()
1589 if (hba->clk_scaling.is_suspended) { in ufshcd_devfreq_target()
1590 dev_warn(hba->dev, "clock scaling is suspended, skip"); in ufshcd_devfreq_target()
1594 if (!hba->clk_scaling.active_reqs) in ufshcd_devfreq_target()
1600 /* Decide based on the target or rounded-off frequency and update */ in ufshcd_devfreq_target()
1601 if (hba->use_pm_opp) in ufshcd_devfreq_target()
1602 scale_up = *freq > hba->clk_scaling.target_freq; in ufshcd_devfreq_target()
1604 scale_up = *freq == clki->max_freq; in ufshcd_devfreq_target()
1606 if (!hba->use_pm_opp && !scale_up) in ufshcd_devfreq_target()
1607 *freq = clki->min_freq; in ufshcd_devfreq_target()
1619 hba->clk_scaling.target_freq = *freq; in ufshcd_devfreq_target()
1627 (!scale_up || hba->clk_scaling.suspend_on_no_request)) in ufshcd_devfreq_target()
1628 queue_work(hba->clk_scaling.workq, in ufshcd_devfreq_target()
1629 &hba->clk_scaling.suspend_work); in ufshcd_devfreq_target()
1638 struct ufs_clk_scaling *scaling = &hba->clk_scaling; in ufshcd_devfreq_get_dev_status()
1642 return -EINVAL; in ufshcd_devfreq_get_dev_status()
1646 guard(spinlock_irqsave)(&hba->clk_scaling.lock); in ufshcd_devfreq_get_dev_status()
1649 if (!scaling->window_start_t) in ufshcd_devfreq_get_dev_status()
1657 if (hba->use_pm_opp) { in ufshcd_devfreq_get_dev_status()
1658 stat->current_frequency = hba->clk_scaling.target_freq; in ufshcd_devfreq_get_dev_status()
1660 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_get_dev_status()
1664 stat->current_frequency = clki->curr_freq; in ufshcd_devfreq_get_dev_status()
1667 if (scaling->is_busy_started) in ufshcd_devfreq_get_dev_status()
1668 scaling->tot_busy_t += ktime_us_delta(curr_t, in ufshcd_devfreq_get_dev_status()
1669 scaling->busy_start_t); in ufshcd_devfreq_get_dev_status()
1670 stat->total_time = ktime_us_delta(curr_t, scaling->window_start_t); in ufshcd_devfreq_get_dev_status()
1671 stat->busy_time = scaling->tot_busy_t; in ufshcd_devfreq_get_dev_status()
1673 scaling->window_start_t = curr_t; in ufshcd_devfreq_get_dev_status()
1674 scaling->tot_busy_t = 0; in ufshcd_devfreq_get_dev_status()
1676 if (scaling->active_reqs) { in ufshcd_devfreq_get_dev_status()
1677 scaling->busy_start_t = curr_t; in ufshcd_devfreq_get_dev_status()
1678 scaling->is_busy_started = true; in ufshcd_devfreq_get_dev_status()
1680 scaling->busy_start_t = 0; in ufshcd_devfreq_get_dev_status()
1681 scaling->is_busy_started = false; in ufshcd_devfreq_get_dev_status()
1689 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_init()
1698 if (!hba->use_pm_opp) { in ufshcd_devfreq_init()
1700 dev_pm_opp_add(hba->dev, clki->min_freq, 0); in ufshcd_devfreq_init()
1701 dev_pm_opp_add(hba->dev, clki->max_freq, 0); in ufshcd_devfreq_init()
1704 ufshcd_vops_config_scaling_param(hba, &hba->vps->devfreq_profile, in ufshcd_devfreq_init()
1705 &hba->vps->ondemand_data); in ufshcd_devfreq_init()
1706 devfreq = devfreq_add_device(hba->dev, in ufshcd_devfreq_init()
1707 &hba->vps->devfreq_profile, in ufshcd_devfreq_init()
1709 &hba->vps->ondemand_data); in ufshcd_devfreq_init()
1712 dev_err(hba->dev, "Unable to register with devfreq %d\n", ret); in ufshcd_devfreq_init()
1714 if (!hba->use_pm_opp) { in ufshcd_devfreq_init()
1715 dev_pm_opp_remove(hba->dev, clki->min_freq); in ufshcd_devfreq_init()
1716 dev_pm_opp_remove(hba->dev, clki->max_freq); in ufshcd_devfreq_init()
1721 hba->devfreq = devfreq; in ufshcd_devfreq_init()
1728 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_remove()
1730 if (!hba->devfreq) in ufshcd_devfreq_remove()
1733 devfreq_remove_device(hba->devfreq); in ufshcd_devfreq_remove()
1734 hba->devfreq = NULL; in ufshcd_devfreq_remove()
1736 if (!hba->use_pm_opp) { in ufshcd_devfreq_remove()
1740 dev_pm_opp_remove(hba->dev, clki->min_freq); in ufshcd_devfreq_remove()
1741 dev_pm_opp_remove(hba->dev, clki->max_freq); in ufshcd_devfreq_remove()
1749 cancel_work_sync(&hba->clk_scaling.suspend_work); in ufshcd_suspend_clkscaling()
1750 cancel_work_sync(&hba->clk_scaling.resume_work); in ufshcd_suspend_clkscaling()
1752 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_suspend_clkscaling()
1754 if (!hba->clk_scaling.is_suspended) { in ufshcd_suspend_clkscaling()
1756 hba->clk_scaling.is_suspended = true; in ufshcd_suspend_clkscaling()
1757 hba->clk_scaling.window_start_t = 0; in ufshcd_suspend_clkscaling()
1762 devfreq_suspend_device(hba->devfreq); in ufshcd_suspend_clkscaling()
1769 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_resume_clkscaling()
1771 if (hba->clk_scaling.is_suspended) { in ufshcd_resume_clkscaling()
1773 hba->clk_scaling.is_suspended = false; in ufshcd_resume_clkscaling()
1778 devfreq_resume_device(hba->devfreq); in ufshcd_resume_clkscaling()
1786 return sysfs_emit(buf, "%d\n", hba->clk_scaling.is_enabled); in ufshcd_clkscale_enable_show()
1799 return -EINVAL; in ufshcd_clkscale_enable_store()
1801 down(&hba->host_sem); in ufshcd_clkscale_enable_store()
1803 err = -EBUSY; in ufshcd_clkscale_enable_store()
1808 if (value == hba->clk_scaling.is_enabled) in ufshcd_clkscale_enable_store()
1814 hba->clk_scaling.is_enabled = value; in ufshcd_clkscale_enable_store()
1821 clki = list_first_entry(&hba->clk_list_head, struct ufs_clk_info, list); in ufshcd_clkscale_enable_store()
1822 freq = clki->max_freq; in ufshcd_clkscale_enable_store()
1831 dev_err(hba->dev, "%s: failed to scale clocks up %d\n", in ufshcd_clkscale_enable_store()
1834 hba->clk_scaling.target_freq = freq; in ufshcd_clkscale_enable_store()
1840 up(&hba->host_sem); in ufshcd_clkscale_enable_store()
1846 hba->clk_scaling.enable_attr.show = ufshcd_clkscale_enable_show; in ufshcd_init_clk_scaling_sysfs()
1847 hba->clk_scaling.enable_attr.store = ufshcd_clkscale_enable_store; in ufshcd_init_clk_scaling_sysfs()
1848 sysfs_attr_init(&hba->clk_scaling.enable_attr.attr); in ufshcd_init_clk_scaling_sysfs()
1849 hba->clk_scaling.enable_attr.attr.name = "clkscale_enable"; in ufshcd_init_clk_scaling_sysfs()
1850 hba->clk_scaling.enable_attr.attr.mode = 0644; in ufshcd_init_clk_scaling_sysfs()
1851 if (device_create_file(hba->dev, &hba->clk_scaling.enable_attr)) in ufshcd_init_clk_scaling_sysfs()
1852 dev_err(hba->dev, "Failed to create sysfs for clkscale_enable\n"); in ufshcd_init_clk_scaling_sysfs()
1857 if (hba->clk_scaling.enable_attr.attr.name) in ufshcd_remove_clk_scaling_sysfs()
1858 device_remove_file(hba->dev, &hba->clk_scaling.enable_attr); in ufshcd_remove_clk_scaling_sysfs()
1866 if (!hba->clk_scaling.min_gear) in ufshcd_init_clk_scaling()
1867 hba->clk_scaling.min_gear = UFS_HS_G1; in ufshcd_init_clk_scaling()
1869 if (!hba->clk_scaling.wb_gear) in ufshcd_init_clk_scaling()
1871 hba->clk_scaling.wb_gear = UFS_HS_G3; in ufshcd_init_clk_scaling()
1873 INIT_WORK(&hba->clk_scaling.suspend_work, in ufshcd_init_clk_scaling()
1875 INIT_WORK(&hba->clk_scaling.resume_work, in ufshcd_init_clk_scaling()
1878 spin_lock_init(&hba->clk_scaling.lock); in ufshcd_init_clk_scaling()
1880 hba->clk_scaling.workq = alloc_ordered_workqueue( in ufshcd_init_clk_scaling()
1881 "ufs_clkscaling_%d", WQ_MEM_RECLAIM, hba->host->host_no); in ufshcd_init_clk_scaling()
1883 hba->clk_scaling.is_initialized = true; in ufshcd_init_clk_scaling()
1888 if (!hba->clk_scaling.is_initialized) in ufshcd_exit_clk_scaling()
1892 destroy_workqueue(hba->clk_scaling.workq); in ufshcd_exit_clk_scaling()
1894 hba->clk_scaling.is_initialized = false; in ufshcd_exit_clk_scaling()
1903 cancel_delayed_work_sync(&hba->clk_gating.gate_work); in ufshcd_ungate_work()
1905 scoped_guard(spinlock_irqsave, &hba->clk_gating.lock) { in ufshcd_ungate_work()
1906 if (hba->clk_gating.state == CLKS_ON) in ufshcd_ungate_work()
1918 hba->clk_gating.is_suspended = true; in ufshcd_ungate_work()
1922 dev_err(hba->dev, "%s: hibern8 exit failed %d\n", in ufshcd_ungate_work()
1927 hba->clk_gating.is_suspended = false; in ufshcd_ungate_work()
1932 * ufshcd_hold - Enable clocks that were gated earlier due to ufshcd_release.
1942 !hba->clk_gating.is_initialized) in ufshcd_hold()
1944 spin_lock_irqsave(&hba->clk_gating.lock, flags); in ufshcd_hold()
1945 hba->clk_gating.active_reqs++; in ufshcd_hold()
1948 switch (hba->clk_gating.state) { in ufshcd_hold()
1960 spin_unlock_irqrestore(&hba->clk_gating.lock, flags); in ufshcd_hold()
1961 flush_result = flush_work(&hba->clk_gating.ungate_work); in ufshcd_hold()
1962 if (hba->clk_gating.is_suspended && !flush_result) in ufshcd_hold()
1964 spin_lock_irqsave(&hba->clk_gating.lock, flags); in ufshcd_hold()
1969 if (cancel_delayed_work(&hba->clk_gating.gate_work)) { in ufshcd_hold()
1970 hba->clk_gating.state = CLKS_ON; in ufshcd_hold()
1972 hba->clk_gating.state); in ufshcd_hold()
1982 hba->clk_gating.state = REQ_CLKS_ON; in ufshcd_hold()
1984 hba->clk_gating.state); in ufshcd_hold()
1985 queue_work(hba->clk_gating.clk_gating_workq, in ufshcd_hold()
1986 &hba->clk_gating.ungate_work); in ufshcd_hold()
1993 spin_unlock_irqrestore(&hba->clk_gating.lock, flags); in ufshcd_hold()
1994 flush_work(&hba->clk_gating.ungate_work); in ufshcd_hold()
1996 spin_lock_irqsave(&hba->clk_gating.lock, flags); in ufshcd_hold()
1999 dev_err(hba->dev, "%s: clk gating is in invalid state %d\n", in ufshcd_hold()
2000 __func__, hba->clk_gating.state); in ufshcd_hold()
2003 spin_unlock_irqrestore(&hba->clk_gating.lock, flags); in ufshcd_hold()
2013 scoped_guard(spinlock_irqsave, &hba->clk_gating.lock) { in ufshcd_gate_work()
2020 if (hba->clk_gating.is_suspended || in ufshcd_gate_work()
2021 hba->clk_gating.state != REQ_CLKS_OFF) { in ufshcd_gate_work()
2022 hba->clk_gating.state = CLKS_ON; in ufshcd_gate_work()
2024 hba->clk_gating.state); in ufshcd_gate_work()
2028 if (hba->clk_gating.active_reqs) in ufshcd_gate_work()
2032 scoped_guard(spinlock_irqsave, hba->host->host_lock) { in ufshcd_gate_work()
2034 hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) in ufshcd_gate_work()
2042 hba->clk_gating.state = CLKS_ON; in ufshcd_gate_work()
2043 dev_err(hba->dev, "%s: hibern8 enter failed %d\n", in ufshcd_gate_work()
2046 hba->clk_gating.state); in ufshcd_gate_work()
2067 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_gate_work()
2068 if (hba->clk_gating.state == REQ_CLKS_OFF) { in ufshcd_gate_work()
2069 hba->clk_gating.state = CLKS_OFF; in ufshcd_gate_work()
2071 hba->clk_gating.state); in ufshcd_gate_work()
2077 lockdep_assert_held(&hba->clk_gating.lock); in __ufshcd_release()
2082 hba->clk_gating.active_reqs--; in __ufshcd_release()
2084 if (hba->clk_gating.active_reqs || hba->clk_gating.is_suspended || in __ufshcd_release()
2085 !hba->clk_gating.is_initialized || in __ufshcd_release()
2086 hba->clk_gating.state == CLKS_OFF) in __ufshcd_release()
2089 scoped_guard(spinlock_irqsave, hba->host->host_lock) { in __ufshcd_release()
2091 hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) in __ufshcd_release()
2095 hba->clk_gating.state = REQ_CLKS_OFF; in __ufshcd_release()
2096 trace_ufshcd_clk_gating(hba, hba->clk_gating.state); in __ufshcd_release()
2097 queue_delayed_work(hba->clk_gating.clk_gating_workq, in __ufshcd_release()
2098 &hba->clk_gating.gate_work, in __ufshcd_release()
2099 msecs_to_jiffies(hba->clk_gating.delay_ms)); in __ufshcd_release()
2104 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_release()
2114 return sysfs_emit(buf, "%lu\n", hba->clk_gating.delay_ms); in ufshcd_clkgate_delay_show()
2121 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_clkgate_delay_set()
2122 hba->clk_gating.delay_ms = value; in ufshcd_clkgate_delay_set()
2132 return -EINVAL; in ufshcd_clkgate_delay_store()
2143 return sysfs_emit(buf, "%d\n", hba->clk_gating.is_enabled); in ufshcd_clkgate_enable_show()
2153 return -EINVAL; in ufshcd_clkgate_enable_store()
2157 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_clkgate_enable_store()
2159 if (value == hba->clk_gating.is_enabled) in ufshcd_clkgate_enable_store()
2165 hba->clk_gating.active_reqs++; in ufshcd_clkgate_enable_store()
2167 hba->clk_gating.is_enabled = value; in ufshcd_clkgate_enable_store()
2174 hba->clk_gating.delay_attr.show = ufshcd_clkgate_delay_show; in ufshcd_init_clk_gating_sysfs()
2175 hba->clk_gating.delay_attr.store = ufshcd_clkgate_delay_store; in ufshcd_init_clk_gating_sysfs()
2176 sysfs_attr_init(&hba->clk_gating.delay_attr.attr); in ufshcd_init_clk_gating_sysfs()
2177 hba->clk_gating.delay_attr.attr.name = "clkgate_delay_ms"; in ufshcd_init_clk_gating_sysfs()
2178 hba->clk_gating.delay_attr.attr.mode = 0644; in ufshcd_init_clk_gating_sysfs()
2179 if (device_create_file(hba->dev, &hba->clk_gating.delay_attr)) in ufshcd_init_clk_gating_sysfs()
2180 dev_err(hba->dev, "Failed to create sysfs for clkgate_delay\n"); in ufshcd_init_clk_gating_sysfs()
2182 hba->clk_gating.enable_attr.show = ufshcd_clkgate_enable_show; in ufshcd_init_clk_gating_sysfs()
2183 hba->clk_gating.enable_attr.store = ufshcd_clkgate_enable_store; in ufshcd_init_clk_gating_sysfs()
2184 sysfs_attr_init(&hba->clk_gating.enable_attr.attr); in ufshcd_init_clk_gating_sysfs()
2185 hba->clk_gating.enable_attr.attr.name = "clkgate_enable"; in ufshcd_init_clk_gating_sysfs()
2186 hba->clk_gating.enable_attr.attr.mode = 0644; in ufshcd_init_clk_gating_sysfs()
2187 if (device_create_file(hba->dev, &hba->clk_gating.enable_attr)) in ufshcd_init_clk_gating_sysfs()
2188 dev_err(hba->dev, "Failed to create sysfs for clkgate_enable\n"); in ufshcd_init_clk_gating_sysfs()
2193 if (hba->clk_gating.delay_attr.attr.name) in ufshcd_remove_clk_gating_sysfs()
2194 device_remove_file(hba->dev, &hba->clk_gating.delay_attr); in ufshcd_remove_clk_gating_sysfs()
2195 if (hba->clk_gating.enable_attr.attr.name) in ufshcd_remove_clk_gating_sysfs()
2196 device_remove_file(hba->dev, &hba->clk_gating.enable_attr); in ufshcd_remove_clk_gating_sysfs()
2204 hba->clk_gating.state = CLKS_ON; in ufshcd_init_clk_gating()
2206 hba->clk_gating.delay_ms = 150; in ufshcd_init_clk_gating()
2207 INIT_DELAYED_WORK(&hba->clk_gating.gate_work, ufshcd_gate_work); in ufshcd_init_clk_gating()
2208 INIT_WORK(&hba->clk_gating.ungate_work, ufshcd_ungate_work); in ufshcd_init_clk_gating()
2210 hba->clk_gating.clk_gating_workq = alloc_ordered_workqueue( in ufshcd_init_clk_gating()
2212 hba->host->host_no); in ufshcd_init_clk_gating()
2216 hba->clk_gating.is_enabled = true; in ufshcd_init_clk_gating()
2217 hba->clk_gating.is_initialized = true; in ufshcd_init_clk_gating()
2222 if (!hba->clk_gating.is_initialized) in ufshcd_exit_clk_gating()
2229 hba->clk_gating.is_initialized = false; in ufshcd_exit_clk_gating()
2232 destroy_workqueue(hba->clk_gating.clk_gating_workq); in ufshcd_exit_clk_gating()
2245 guard(spinlock_irqsave)(&hba->clk_scaling.lock); in ufshcd_clk_scaling_start_busy()
2247 if (!hba->clk_scaling.active_reqs++) in ufshcd_clk_scaling_start_busy()
2250 if (!hba->clk_scaling.is_enabled || hba->pm_op_in_progress) in ufshcd_clk_scaling_start_busy()
2254 queue_work(hba->clk_scaling.workq, in ufshcd_clk_scaling_start_busy()
2255 &hba->clk_scaling.resume_work); in ufshcd_clk_scaling_start_busy()
2257 if (!hba->clk_scaling.window_start_t) { in ufshcd_clk_scaling_start_busy()
2258 hba->clk_scaling.window_start_t = curr_t; in ufshcd_clk_scaling_start_busy()
2259 hba->clk_scaling.tot_busy_t = 0; in ufshcd_clk_scaling_start_busy()
2260 hba->clk_scaling.is_busy_started = false; in ufshcd_clk_scaling_start_busy()
2263 if (!hba->clk_scaling.is_busy_started) { in ufshcd_clk_scaling_start_busy()
2264 hba->clk_scaling.busy_start_t = curr_t; in ufshcd_clk_scaling_start_busy()
2265 hba->clk_scaling.is_busy_started = true; in ufshcd_clk_scaling_start_busy()
2271 struct ufs_clk_scaling *scaling = &hba->clk_scaling; in ufshcd_clk_scaling_update_busy()
2276 guard(spinlock_irqsave)(&hba->clk_scaling.lock); in ufshcd_clk_scaling_update_busy()
2278 hba->clk_scaling.active_reqs--; in ufshcd_clk_scaling_update_busy()
2279 if (!scaling->active_reqs && scaling->is_busy_started) { in ufshcd_clk_scaling_update_busy()
2280 scaling->tot_busy_t += ktime_to_us(ktime_sub(ktime_get(), in ufshcd_clk_scaling_update_busy()
2281 scaling->busy_start_t)); in ufshcd_clk_scaling_update_busy()
2282 scaling->busy_start_t = 0; in ufshcd_clk_scaling_update_busy()
2283 scaling->is_busy_started = false; in ufshcd_clk_scaling_update_busy()
2294 return -EINVAL; in ufshcd_monitor_opcode2dir()
2300 const struct ufs_hba_monitor *m = &hba->monitor; in ufshcd_should_inform_monitor()
2302 return (m->enabled && lrbp && lrbp->cmd && in ufshcd_should_inform_monitor()
2303 (!m->chunk_size || m->chunk_size == lrbp->cmd->sdb.length) && in ufshcd_should_inform_monitor()
2304 ktime_before(hba->monitor.enabled_ts, lrbp->issue_time_stamp)); in ufshcd_should_inform_monitor()
2310 int dir = ufshcd_monitor_opcode2dir(*lrbp->cmd->cmnd); in ufshcd_start_monitor()
2313 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_start_monitor()
2314 if (dir >= 0 && hba->monitor.nr_queued[dir]++ == 0) in ufshcd_start_monitor()
2315 hba->monitor.busy_start_ts[dir] = ktime_get(); in ufshcd_start_monitor()
2316 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_start_monitor()
2321 int dir = ufshcd_monitor_opcode2dir(*lrbp->cmd->cmnd); in ufshcd_update_monitor()
2324 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_update_monitor()
2325 if (dir >= 0 && hba->monitor.nr_queued[dir] > 0) { in ufshcd_update_monitor()
2326 const struct request *req = scsi_cmd_to_rq(lrbp->cmd); in ufshcd_update_monitor()
2327 struct ufs_hba_monitor *m = &hba->monitor; in ufshcd_update_monitor()
2330 now = lrbp->compl_time_stamp; in ufshcd_update_monitor()
2331 inc = ktime_sub(now, m->busy_start_ts[dir]); in ufshcd_update_monitor()
2332 m->total_busy[dir] = ktime_add(m->total_busy[dir], inc); in ufshcd_update_monitor()
2333 m->nr_sec_rw[dir] += blk_rq_sectors(req); in ufshcd_update_monitor()
2336 m->nr_req[dir]++; in ufshcd_update_monitor()
2337 lat = ktime_sub(now, lrbp->issue_time_stamp); in ufshcd_update_monitor()
2338 m->lat_sum[dir] += lat; in ufshcd_update_monitor()
2339 if (m->lat_max[dir] < lat || !m->lat_max[dir]) in ufshcd_update_monitor()
2340 m->lat_max[dir] = lat; in ufshcd_update_monitor()
2341 if (m->lat_min[dir] > lat || !m->lat_min[dir]) in ufshcd_update_monitor()
2342 m->lat_min[dir] = lat; in ufshcd_update_monitor()
2344 m->nr_queued[dir]--; in ufshcd_update_monitor()
2346 m->busy_start_ts[dir] = now; in ufshcd_update_monitor()
2348 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_update_monitor()
2352 * ufshcd_send_command - Send SCSI or device management commands
2361 struct ufshcd_lrb *lrbp = &hba->lrb[task_tag]; in ufshcd_send_command()
2364 if (hba->monitor.enabled) { in ufshcd_send_command()
2365 lrbp->issue_time_stamp = ktime_get(); in ufshcd_send_command()
2366 lrbp->issue_time_stamp_local_clock = local_clock(); in ufshcd_send_command()
2367 lrbp->compl_time_stamp = ktime_set(0, 0); in ufshcd_send_command()
2368 lrbp->compl_time_stamp_local_clock = 0; in ufshcd_send_command()
2371 if (lrbp->cmd) in ufshcd_send_command()
2376 if (hba->mcq_enabled) { in ufshcd_send_command()
2378 struct utp_transfer_req_desc *src = lrbp->utr_descriptor_ptr; in ufshcd_send_command()
2381 spin_lock(&hwq->sq_lock); in ufshcd_send_command()
2382 dest = hwq->sqe_base_addr + hwq->sq_tail_slot; in ufshcd_send_command()
2385 spin_unlock(&hwq->sq_lock); in ufshcd_send_command()
2387 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_send_command()
2388 if (hba->vops && hba->vops->setup_xfer_req) in ufshcd_send_command()
2389 hba->vops->setup_xfer_req(hba, lrbp->task_tag, in ufshcd_send_command()
2390 !!lrbp->cmd); in ufshcd_send_command()
2391 __set_bit(lrbp->task_tag, &hba->outstanding_reqs); in ufshcd_send_command()
2392 ufshcd_writel(hba, 1 << lrbp->task_tag, in ufshcd_send_command()
2394 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_send_command()
2399 * ufshcd_copy_sense_data - Copy sense data in case of check condition
2404 u8 *const sense_buffer = lrbp->cmd->sense_buffer; in ufshcd_copy_sense_data()
2408 resp_len = be16_to_cpu(lrbp->ucd_rsp_ptr->header.data_segment_length); in ufshcd_copy_sense_data()
2412 len = be16_to_cpu(lrbp->ucd_rsp_ptr->sr.sense_data_len); in ufshcd_copy_sense_data()
2415 memcpy(sense_buffer, lrbp->ucd_rsp_ptr->sr.sense_data, in ufshcd_copy_sense_data()
2421 * ufshcd_copy_query_response() - Copy the Query Response and the data
2431 struct ufs_query_res *query_res = &hba->dev_cmd.query.response; in ufshcd_copy_query_response()
2433 memcpy(&query_res->upiu_res, &lrbp->ucd_rsp_ptr->qr, QUERY_OSF_SIZE); in ufshcd_copy_query_response()
2436 if (hba->dev_cmd.query.descriptor && in ufshcd_copy_query_response()
2437 lrbp->ucd_rsp_ptr->qr.opcode == UPIU_QUERY_OPCODE_READ_DESC) { in ufshcd_copy_query_response()
2438 u8 *descp = (u8 *)lrbp->ucd_rsp_ptr + in ufshcd_copy_query_response()
2444 resp_len = be16_to_cpu(lrbp->ucd_rsp_ptr->header in ufshcd_copy_query_response()
2447 hba->dev_cmd.query.request.upiu_req.length); in ufshcd_copy_query_response()
2449 memcpy(hba->dev_cmd.query.descriptor, descp, resp_len); in ufshcd_copy_query_response()
2451 dev_warn(hba->dev, in ufshcd_copy_query_response()
2454 return -EINVAL; in ufshcd_copy_query_response()
2462 * ufshcd_hba_capabilities - Read controller capabilities
2471 hba->capabilities = ufshcd_readl(hba, REG_CONTROLLER_CAPABILITIES); in ufshcd_hba_capabilities()
2474 hba->nutrs = (hba->capabilities & MASK_TRANSFER_REQUESTS_SLOTS_SDB) + 1; in ufshcd_hba_capabilities()
2475 hba->nutmrs = in ufshcd_hba_capabilities()
2476 ((hba->capabilities & MASK_TASK_MANAGEMENT_REQUEST_SLOTS) >> 16) + 1; in ufshcd_hba_capabilities()
2477 hba->reserved_slot = hba->nutrs - 1; in ufshcd_hba_capabilities()
2479 hba->nortt = FIELD_GET(MASK_NUMBER_OUTSTANDING_RTT, hba->capabilities) + 1; in ufshcd_hba_capabilities()
2484 dev_err(hba->dev, "crypto setup failed\n"); in ufshcd_hba_capabilities()
2493 hba->mcq_sup = FIELD_GET(MASK_MCQ_SUPPORT, hba->capabilities); in ufshcd_hba_capabilities()
2498 if (!(hba->quirks & UFSHCD_QUIRK_BROKEN_LSDBS_CAP)) in ufshcd_hba_capabilities()
2499 hba->lsdb_sup = !FIELD_GET(MASK_LSDB_SUPPORT, hba->capabilities); in ufshcd_hba_capabilities()
2501 hba->lsdb_sup = true; in ufshcd_hba_capabilities()
2503 hba->mcq_capabilities = ufshcd_readl(hba, REG_MCQCAP); in ufshcd_hba_capabilities()
2509 * ufshcd_ready_for_uic_cmd - Check if controller is ready
2525 * ufshcd_get_upmcrs - Get the power mode change request status
2538 * ufshcd_dispatch_uic_cmd - Dispatch an UIC command to the Unipro layer
2545 lockdep_assert_held(&hba->uic_cmd_mutex); in ufshcd_dispatch_uic_cmd()
2547 WARN_ON(hba->active_uic_cmd); in ufshcd_dispatch_uic_cmd()
2549 hba->active_uic_cmd = uic_cmd; in ufshcd_dispatch_uic_cmd()
2552 ufshcd_writel(hba, uic_cmd->argument1, REG_UIC_COMMAND_ARG_1); in ufshcd_dispatch_uic_cmd()
2553 ufshcd_writel(hba, uic_cmd->argument2, REG_UIC_COMMAND_ARG_2); in ufshcd_dispatch_uic_cmd()
2554 ufshcd_writel(hba, uic_cmd->argument3, REG_UIC_COMMAND_ARG_3); in ufshcd_dispatch_uic_cmd()
2559 ufshcd_writel(hba, uic_cmd->command & COMMAND_OPCODE_MASK, in ufshcd_dispatch_uic_cmd()
2564 * ufshcd_wait_for_uic_cmd - Wait for completion of an UIC command
2576 lockdep_assert_held(&hba->uic_cmd_mutex); in ufshcd_wait_for_uic_cmd()
2578 if (wait_for_completion_timeout(&uic_cmd->done, in ufshcd_wait_for_uic_cmd()
2580 ret = uic_cmd->argument2 & MASK_UIC_COMMAND_RESULT; in ufshcd_wait_for_uic_cmd()
2582 ret = -ETIMEDOUT; in ufshcd_wait_for_uic_cmd()
2583 dev_err(hba->dev, in ufshcd_wait_for_uic_cmd()
2585 uic_cmd->command, uic_cmd->argument3); in ufshcd_wait_for_uic_cmd()
2587 if (!uic_cmd->cmd_active) { in ufshcd_wait_for_uic_cmd()
2588 dev_err(hba->dev, "%s: UIC cmd has been completed, return the result\n", in ufshcd_wait_for_uic_cmd()
2590 ret = uic_cmd->argument2 & MASK_UIC_COMMAND_RESULT; in ufshcd_wait_for_uic_cmd()
2594 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_wait_for_uic_cmd()
2595 hba->active_uic_cmd = NULL; in ufshcd_wait_for_uic_cmd()
2596 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_wait_for_uic_cmd()
2602 * __ufshcd_send_uic_cmd - Send UIC commands and retrieve the result
2611 lockdep_assert_held(&hba->uic_cmd_mutex); in __ufshcd_send_uic_cmd()
2614 dev_err(hba->dev, in __ufshcd_send_uic_cmd()
2616 return -EIO; in __ufshcd_send_uic_cmd()
2619 init_completion(&uic_cmd->done); in __ufshcd_send_uic_cmd()
2621 uic_cmd->cmd_active = 1; in __ufshcd_send_uic_cmd()
2628 * ufshcd_send_uic_cmd - Send UIC commands and retrieve the result
2639 if (hba->quirks & UFSHCD_QUIRK_BROKEN_UIC_CMD) in ufshcd_send_uic_cmd()
2643 mutex_lock(&hba->uic_cmd_mutex); in ufshcd_send_uic_cmd()
2646 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_send_uic_cmd()
2648 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_send_uic_cmd()
2654 mutex_unlock(&hba->uic_cmd_mutex); in ufshcd_send_uic_cmd()
2661 * ufshcd_sgl_to_prdt - SG list to PRTD (Physical Region Description Table, 4DW format)
2662 * @hba: per-adapter instance
2676 if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) in ufshcd_sgl_to_prdt()
2677 lrbp->utr_descriptor_ptr->prd_table_length = in ufshcd_sgl_to_prdt()
2680 lrbp->utr_descriptor_ptr->prd_table_length = cpu_to_le16(sg_entries); in ufshcd_sgl_to_prdt()
2682 prd = lrbp->ucd_prdt_ptr; in ufshcd_sgl_to_prdt()
2696 prd->size = cpu_to_le32(len - 1); in ufshcd_sgl_to_prdt()
2697 prd->addr = cpu_to_le64(sg->dma_address); in ufshcd_sgl_to_prdt()
2698 prd->reserved = 0; in ufshcd_sgl_to_prdt()
2702 lrbp->utr_descriptor_ptr->prd_table_length = 0; in ufshcd_sgl_to_prdt()
2707 * ufshcd_map_sg - Map scatter-gather list to prdt
2711 * Return: 0 in case of success, non-zero value in case of failure.
2715 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_map_sg()
2727 * ufshcd_prepare_req_desc_hdr - Fill UTP Transfer request descriptor header according to request
2740 struct utp_transfer_req_desc *req_desc = lrbp->utr_descriptor_ptr; in ufshcd_prepare_req_desc_hdr()
2741 struct request_desc_header *h = &req_desc->header; in ufshcd_prepare_req_desc_hdr()
2744 lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; in ufshcd_prepare_req_desc_hdr()
2759 h->command_type = lrbp->command_type; in ufshcd_prepare_req_desc_hdr()
2760 h->data_direction = data_direction; in ufshcd_prepare_req_desc_hdr()
2761 h->ehs_length = ehs_length; in ufshcd_prepare_req_desc_hdr()
2763 if (lrbp->intr_cmd) in ufshcd_prepare_req_desc_hdr()
2764 h->interrupt = 1; in ufshcd_prepare_req_desc_hdr()
2774 h->ocs = OCS_INVALID_COMMAND_STATUS; in ufshcd_prepare_req_desc_hdr()
2776 req_desc->prd_table_length = 0; in ufshcd_prepare_req_desc_hdr()
2780 * ufshcd_prepare_utp_scsi_cmd_upiu() - fills the utp_transfer_req_desc,
2788 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_prepare_utp_scsi_cmd_upiu()
2789 struct utp_upiu_req *ucd_req_ptr = lrbp->ucd_req_ptr; in ufshcd_prepare_utp_scsi_cmd_upiu()
2792 ucd_req_ptr->header = (struct utp_upiu_header){ in ufshcd_prepare_utp_scsi_cmd_upiu()
2795 .lun = lrbp->lun, in ufshcd_prepare_utp_scsi_cmd_upiu()
2796 .task_tag = lrbp->task_tag, in ufshcd_prepare_utp_scsi_cmd_upiu()
2800 WARN_ON_ONCE(ucd_req_ptr->header.task_tag != lrbp->task_tag); in ufshcd_prepare_utp_scsi_cmd_upiu()
2802 ucd_req_ptr->sc.exp_data_transfer_len = cpu_to_be32(cmd->sdb.length); in ufshcd_prepare_utp_scsi_cmd_upiu()
2804 cdb_len = min_t(unsigned short, cmd->cmd_len, UFS_CDB_SIZE); in ufshcd_prepare_utp_scsi_cmd_upiu()
2805 memcpy(ucd_req_ptr->sc.cdb, cmd->cmnd, cdb_len); in ufshcd_prepare_utp_scsi_cmd_upiu()
2807 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_prepare_utp_scsi_cmd_upiu()
2811 * ufshcd_prepare_utp_query_req_upiu() - fill the utp_transfer_req_desc for query request
2819 struct utp_upiu_req *ucd_req_ptr = lrbp->ucd_req_ptr; in ufshcd_prepare_utp_query_req_upiu()
2820 struct ufs_query *query = &hba->dev_cmd.query; in ufshcd_prepare_utp_query_req_upiu()
2821 u16 len = be16_to_cpu(query->request.upiu_req.length); in ufshcd_prepare_utp_query_req_upiu()
2824 ucd_req_ptr->header = (struct utp_upiu_header){ in ufshcd_prepare_utp_query_req_upiu()
2827 .lun = lrbp->lun, in ufshcd_prepare_utp_query_req_upiu()
2828 .task_tag = lrbp->task_tag, in ufshcd_prepare_utp_query_req_upiu()
2829 .query_function = query->request.query_func, in ufshcd_prepare_utp_query_req_upiu()
2832 query->request.upiu_req.opcode == in ufshcd_prepare_utp_query_req_upiu()
2839 memcpy(&ucd_req_ptr->qr, &query->request.upiu_req, in ufshcd_prepare_utp_query_req_upiu()
2843 if (query->request.upiu_req.opcode == UPIU_QUERY_OPCODE_WRITE_DESC) in ufshcd_prepare_utp_query_req_upiu()
2844 memcpy(ucd_req_ptr + 1, query->descriptor, len); in ufshcd_prepare_utp_query_req_upiu()
2849 struct utp_upiu_req *ucd_req_ptr = lrbp->ucd_req_ptr; in ufshcd_prepare_utp_nop_upiu()
2853 ucd_req_ptr->header = (struct utp_upiu_header){ in ufshcd_prepare_utp_nop_upiu()
2855 .task_tag = lrbp->task_tag, in ufshcd_prepare_utp_nop_upiu()
2860 * ufshcd_compose_devman_upiu - UFS Protocol Information Unit(UPIU)
2875 if (hba->dev_cmd.type == DEV_CMD_TYPE_QUERY) in ufshcd_compose_devman_upiu()
2877 else if (hba->dev_cmd.type == DEV_CMD_TYPE_NOP) in ufshcd_compose_devman_upiu()
2880 ret = -EINVAL; in ufshcd_compose_devman_upiu()
2882 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_compose_devman_upiu()
2888 * ufshcd_comp_scsi_upiu - UFS Protocol Information Unit(UPIU)
2895 struct request *rq = scsi_cmd_to_rq(lrbp->cmd); in ufshcd_comp_scsi_upiu()
2899 ufshcd_prepare_req_desc_hdr(hba, lrbp, &upiu_flags, lrbp->cmd->sc_data_direction, 0); in ufshcd_comp_scsi_upiu()
2907 memset(lrbp->ucd_req_ptr, 0, sizeof(*lrbp->ucd_req_ptr)); in __ufshcd_setup_cmd()
2909 lrbp->cmd = cmd; in __ufshcd_setup_cmd()
2910 lrbp->task_tag = tag; in __ufshcd_setup_cmd()
2911 lrbp->lun = lun; in __ufshcd_setup_cmd()
2919 lrbp->intr_cmd = !ufshcd_is_intr_aggr_allowed(hba); in ufshcd_setup_scsi_cmd()
2920 lrbp->req_abort_skip = false; in ufshcd_setup_scsi_cmd()
2926 * ufshcd_upiu_wlun_to_scsi_wlun - maps UPIU W-LUN id to SCSI W-LUN ID
2927 * @upiu_wlun_id: UPIU W-LUN id
2929 * Return: SCSI W-LUN id.
2938 return sdev->lun == in is_device_wlun()
2952 hba->nr_queues[HCTX_TYPE_DEFAULT] = 1; in ufshcd_map_queues()
2953 hba->nr_queues[HCTX_TYPE_READ] = 0; in ufshcd_map_queues()
2954 hba->nr_queues[HCTX_TYPE_POLL] = 1; in ufshcd_map_queues()
2955 hba->nr_hw_queues = 1; in ufshcd_map_queues()
2958 for (i = 0; i < shost->nr_maps; i++) { in ufshcd_map_queues()
2959 struct blk_mq_queue_map *map = &shost->tag_set.map[i]; in ufshcd_map_queues()
2961 map->nr_queues = hba->nr_queues[i]; in ufshcd_map_queues()
2962 if (!map->nr_queues) in ufshcd_map_queues()
2964 map->queue_offset = queue_offset; in ufshcd_map_queues()
2966 map->queue_offset = 0; in ufshcd_map_queues()
2969 queue_offset += map->nr_queues; in ufshcd_map_queues()
2975 struct utp_transfer_cmd_desc *cmd_descp = (void *)hba->ucdl_base_addr + in ufshcd_init_lrb()
2977 struct utp_transfer_req_desc *utrdlp = hba->utrdl_base_addr; in ufshcd_init_lrb()
2978 dma_addr_t cmd_desc_element_addr = hba->ucdl_dma_addr + in ufshcd_init_lrb()
2983 lrb->utr_descriptor_ptr = utrdlp + i; in ufshcd_init_lrb()
2984 lrb->utrd_dma_addr = hba->utrdl_dma_addr + in ufshcd_init_lrb()
2986 lrb->ucd_req_ptr = (struct utp_upiu_req *)cmd_descp->command_upiu; in ufshcd_init_lrb()
2987 lrb->ucd_req_dma_addr = cmd_desc_element_addr; in ufshcd_init_lrb()
2988 lrb->ucd_rsp_ptr = (struct utp_upiu_rsp *)cmd_descp->response_upiu; in ufshcd_init_lrb()
2989 lrb->ucd_rsp_dma_addr = cmd_desc_element_addr + response_offset; in ufshcd_init_lrb()
2990 lrb->ucd_prdt_ptr = (struct ufshcd_sg_entry *)cmd_descp->prd_table; in ufshcd_init_lrb()
2991 lrb->ucd_prdt_dma_addr = cmd_desc_element_addr + prdt_offset; in ufshcd_init_lrb()
2995 * ufshcd_queuecommand - main entry point for SCSI requests
2999 * Return: 0 for success, non-zero in case of failure.
3004 int tag = scsi_cmd_to_rq(cmd)->tag; in ufshcd_queuecommand()
3009 switch (hba->ufshcd_state) { in ufshcd_queuecommand()
3014 * SCSI error handler can call ->queuecommand() while UFS error in ufshcd_queuecommand()
3036 if (hba->pm_op_in_progress) { in ufshcd_queuecommand()
3037 hba->force_reset = true; in ufshcd_queuecommand()
3052 hba->req_abort_count = 0; in ufshcd_queuecommand()
3056 lrbp = &hba->lrb[tag]; in ufshcd_queuecommand()
3058 ufshcd_setup_scsi_cmd(hba, lrbp, cmd, ufshcd_scsi_to_upiu_lun(cmd->device->lun), tag); in ufshcd_queuecommand()
3066 if (hba->mcq_enabled) in ufshcd_queuecommand()
3075 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_queuecommand()
3077 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_queuecommand()
3087 lrbp->intr_cmd = true; /* No interrupt aggregation */ in ufshcd_setup_dev_cmd()
3088 hba->dev_cmd.type = cmd_type; in ufshcd_setup_dev_cmd()
3124 if (hba->mcq_enabled) { in ufshcd_clear_cmd()
3131 dev_err(hba->dev, "%s: failed tag=%d. err=%d\n", in ufshcd_clear_cmd()
3144 * wait for h/w to clear corresponding bit in door-bell. in ufshcd_clear_cmd()
3152 * ufshcd_dev_cmd_completion() - handles device management command responses
3164 hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); in ufshcd_dev_cmd_completion()
3165 resp = ufshcd_get_req_rsp(lrbp->ucd_rsp_ptr); in ufshcd_dev_cmd_completion()
3169 if (hba->dev_cmd.type != DEV_CMD_TYPE_NOP) { in ufshcd_dev_cmd_completion()
3170 err = -EINVAL; in ufshcd_dev_cmd_completion()
3171 dev_err(hba->dev, "%s: unexpected response %x\n", in ufshcd_dev_cmd_completion()
3176 u8 response = lrbp->ucd_rsp_ptr->header.response; in ufshcd_dev_cmd_completion()
3181 err = -EINVAL; in ufshcd_dev_cmd_completion()
3182 dev_err(hba->dev, "%s: unexpected response in Query RSP: %x\n", in ufshcd_dev_cmd_completion()
3189 err = -EPERM; in ufshcd_dev_cmd_completion()
3190 dev_err(hba->dev, "%s: Reject UPIU not fully implemented\n", in ufshcd_dev_cmd_completion()
3194 if (hba->dev_cmd.type != DEV_CMD_TYPE_RPMB) { in ufshcd_dev_cmd_completion()
3195 err = -EINVAL; in ufshcd_dev_cmd_completion()
3196 dev_err(hba->dev, "%s: unexpected response %x\n", __func__, resp); in ufshcd_dev_cmd_completion()
3200 err = -EINVAL; in ufshcd_dev_cmd_completion()
3201 dev_err(hba->dev, "%s: Invalid device management cmd response: %x\n", in ufshcd_dev_cmd_completion()
3223 time_left = wait_for_completion_timeout(&hba->dev_cmd.complete, in ufshcd_wait_for_dev_cmd()
3231 err = -ETIMEDOUT; in ufshcd_wait_for_dev_cmd()
3232 dev_dbg(hba->dev, "%s: dev_cmd request timedout, tag %d\n", in ufshcd_wait_for_dev_cmd()
3233 __func__, lrbp->task_tag); in ufshcd_wait_for_dev_cmd()
3236 if (hba->mcq_enabled) { in ufshcd_wait_for_dev_cmd()
3238 if (ufshcd_clear_cmd(hba, lrbp->task_tag) == 0) in ufshcd_wait_for_dev_cmd()
3239 err = -EAGAIN; in ufshcd_wait_for_dev_cmd()
3244 if (ufshcd_clear_cmd(hba, lrbp->task_tag) == 0) { in ufshcd_wait_for_dev_cmd()
3246 err = -EAGAIN; in ufshcd_wait_for_dev_cmd()
3252 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3253 pending = test_bit(lrbp->task_tag, in ufshcd_wait_for_dev_cmd()
3254 &hba->outstanding_reqs); in ufshcd_wait_for_dev_cmd()
3256 __clear_bit(lrbp->task_tag, in ufshcd_wait_for_dev_cmd()
3257 &hba->outstanding_reqs); in ufshcd_wait_for_dev_cmd()
3258 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3269 dev_err(hba->dev, "%s: failed to clear tag %d\n", in ufshcd_wait_for_dev_cmd()
3270 __func__, lrbp->task_tag); in ufshcd_wait_for_dev_cmd()
3272 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3273 pending = test_bit(lrbp->task_tag, in ufshcd_wait_for_dev_cmd()
3274 &hba->outstanding_reqs); in ufshcd_wait_for_dev_cmd()
3275 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3294 mutex_lock(&hba->dev_cmd.lock); in ufshcd_dev_man_lock()
3295 down_read(&hba->clk_scaling_lock); in ufshcd_dev_man_lock()
3300 up_read(&hba->clk_scaling_lock); in ufshcd_dev_man_unlock()
3301 mutex_unlock(&hba->dev_cmd.lock); in ufshcd_dev_man_unlock()
3314 ufshcd_add_query_upiu_trace(hba, UFS_QUERY_SEND, lrbp->ucd_req_ptr); in ufshcd_issue_dev_cmd()
3315 ufshcd_send_command(hba, tag, hba->dev_cmd_queue); in ufshcd_issue_dev_cmd()
3319 (struct utp_upiu_req *)lrbp->ucd_rsp_ptr); in ufshcd_issue_dev_cmd()
3325 * ufshcd_exec_dev_cmd - API for sending device management requests
3334 * it is expected you hold the hba->dev_cmd.lock mutex.
3339 const u32 tag = hba->reserved_slot; in ufshcd_exec_dev_cmd()
3340 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_exec_dev_cmd()
3343 /* Protects use of hba->reserved_slot. */ in ufshcd_exec_dev_cmd()
3344 lockdep_assert_held(&hba->dev_cmd.lock); in ufshcd_exec_dev_cmd()
3354 * ufshcd_init_query() - init the query response and request parameters
3355 * @hba: per-adapter instance
3367 *request = &hba->dev_cmd.query.request; in ufshcd_init_query()
3368 *response = &hba->dev_cmd.query.response; in ufshcd_init_query()
3371 (*request)->upiu_req.opcode = opcode; in ufshcd_init_query()
3372 (*request)->upiu_req.idn = idn; in ufshcd_init_query()
3373 (*request)->upiu_req.index = index; in ufshcd_init_query()
3374 (*request)->upiu_req.selector = selector; in ufshcd_init_query()
3390 dev_dbg(hba->dev, in ufshcd_query_flag_retry()
3398 dev_err(hba->dev, in ufshcd_query_flag_retry()
3405 * ufshcd_query_flag() - API function for sending flag query requests
3406 * @hba: per-adapter instance
3434 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in ufshcd_query_flag()
3437 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in ufshcd_query_flag()
3440 dev_err(hba->dev, "%s: Invalid argument for read request\n", in ufshcd_query_flag()
3442 err = -EINVAL; in ufshcd_query_flag()
3447 dev_err(hba->dev, in ufshcd_query_flag()
3450 err = -EINVAL; in ufshcd_query_flag()
3457 dev_err(hba->dev, in ufshcd_query_flag()
3464 *flag_res = (be32_to_cpu(response->upiu_res.value) & in ufshcd_query_flag()
3473 * ufshcd_query_attr - API function for sending attribute requests
3474 * @hba: per-adapter instance
3494 dev_err(hba->dev, "%s: attribute value required for opcode 0x%x\n", in ufshcd_query_attr()
3496 return -EINVAL; in ufshcd_query_attr()
3506 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in ufshcd_query_attr()
3507 request->upiu_req.value = cpu_to_be32(*attr_val); in ufshcd_query_attr()
3510 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in ufshcd_query_attr()
3513 dev_err(hba->dev, "%s: Expected query attr opcode but got = 0x%.2x\n", in ufshcd_query_attr()
3515 err = -EINVAL; in ufshcd_query_attr()
3522 dev_err(hba->dev, "%s: opcode 0x%.2x for idn %d failed, index %d, err = %d\n", in ufshcd_query_attr()
3527 *attr_val = be32_to_cpu(response->upiu_res.value); in ufshcd_query_attr()
3535 * ufshcd_query_attr_retry() - API function for sending query
3537 * @hba: per-adapter instance
3555 for (retries = QUERY_REQ_RETRIES; retries > 0; retries--) { in ufshcd_query_attr_retry()
3559 dev_dbg(hba->dev, "%s: failed with error %d, retries %d\n", in ufshcd_query_attr_retry()
3566 dev_err(hba->dev, in ufshcd_query_attr_retry()
3587 dev_err(hba->dev, "%s: descriptor buffer required for opcode 0x%x\n", in __ufshcd_query_descriptor()
3589 return -EINVAL; in __ufshcd_query_descriptor()
3593 dev_err(hba->dev, "%s: descriptor buffer size (%d) is out of range\n", in __ufshcd_query_descriptor()
3595 return -EINVAL; in __ufshcd_query_descriptor()
3602 hba->dev_cmd.query.descriptor = desc_buf; in __ufshcd_query_descriptor()
3603 request->upiu_req.length = cpu_to_be16(*buf_len); in __ufshcd_query_descriptor()
3607 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in __ufshcd_query_descriptor()
3610 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in __ufshcd_query_descriptor()
3613 dev_err(hba->dev, in __ufshcd_query_descriptor()
3616 err = -EINVAL; in __ufshcd_query_descriptor()
3623 dev_err(hba->dev, "%s: opcode 0x%.2x for idn %d failed, index %d, err = %d\n", in __ufshcd_query_descriptor()
3628 *buf_len = be16_to_cpu(response->upiu_res.length); in __ufshcd_query_descriptor()
3631 hba->dev_cmd.query.descriptor = NULL; in __ufshcd_query_descriptor()
3637 * ufshcd_query_descriptor_retry - API function for sending descriptor requests
3638 * @hba: per-adapter instance
3661 for (retries = QUERY_REQ_RETRIES; retries > 0; retries--) { in ufshcd_query_descriptor_retry()
3664 if (!err || err == -EINVAL) in ufshcd_query_descriptor_retry()
3672 * ufshcd_read_desc_param - read the specified descriptor parameter
3697 return -EINVAL; in ufshcd_read_desc_param()
3703 return -ENOMEM; in ufshcd_read_desc_param()
3714 …dev_err(hba->dev, "%s: Failed reading descriptor. desc_id %d, desc_index %d, param_offset %d, ret … in ufshcd_read_desc_param()
3723 dev_err(hba->dev, "%s: Invalid offset 0x%x in descriptor IDN 0x%x, length 0x%x\n", in ufshcd_read_desc_param()
3725 ret = -EINVAL; in ufshcd_read_desc_param()
3731 dev_err(hba->dev, "%s: invalid desc_id %d in descriptor header\n", in ufshcd_read_desc_param()
3733 ret = -EINVAL; in ufshcd_read_desc_param()
3740 ret = -EINVAL; in ufshcd_read_desc_param()
3743 min_t(u32, param_size, buff_len - param_offset)); in ufshcd_read_desc_param()
3752 * struct uc_string_id - unicode string
3764 /* replace non-printable or non-ASCII characters with spaces */
3771 * ufshcd_read_string_desc - read string descriptor
3781 * * -ENOMEM: on allocation failure
3782 * * -EINVAL: on a wrong parameter
3792 return -EINVAL; in ufshcd_read_string_desc()
3796 return -ENOMEM; in ufshcd_read_string_desc()
3801 dev_err(hba->dev, "Reading String Desc failed after %d retries. err = %d\n", in ufshcd_read_string_desc()
3807 if (uc_str->len <= QUERY_DESC_HDR_SIZE) { in ufshcd_read_string_desc()
3808 dev_dbg(hba->dev, "String Desc is of zero length\n"); in ufshcd_read_string_desc()
3818 ascii_len = (uc_str->len - QUERY_DESC_HDR_SIZE) / 2 + 1; in ufshcd_read_string_desc()
3821 ret = -ENOMEM; in ufshcd_read_string_desc()
3827 * we need to convert to utf-8 so it can be displayed in ufshcd_read_string_desc()
3829 ret = utf16s_to_utf8s(uc_str->uc, in ufshcd_read_string_desc()
3830 uc_str->len - QUERY_DESC_HDR_SIZE, in ufshcd_read_string_desc()
3831 UTF16_BIG_ENDIAN, str, ascii_len - 1); in ufshcd_read_string_desc()
3833 /* replace non-printable or non-ASCII characters with spaces */ in ufshcd_read_string_desc()
3840 str = kmemdup(uc_str, uc_str->len, GFP_KERNEL); in ufshcd_read_string_desc()
3842 ret = -ENOMEM; in ufshcd_read_string_desc()
3845 ret = uc_str->len; in ufshcd_read_string_desc()
3854 * ufshcd_read_unit_desc_param - read the specified unit descriptor parameter
3873 if (!ufs_is_valid_unit_desc_lun(&hba->dev_info, lun)) in ufshcd_read_unit_desc_param()
3874 return -EOPNOTSUPP; in ufshcd_read_unit_desc_param()
3885 if (hba->dev_info.wspecversion >= 0x300) { in ufshcd_get_ref_clk_gating_wait()
3890 dev_err(hba->dev, "Failed reading bRefClkGatingWait. err = %d, use default %uus\n", in ufshcd_get_ref_clk_gating_wait()
3895 dev_err(hba->dev, "Undefined ref clk gating wait time, use default %uus\n", in ufshcd_get_ref_clk_gating_wait()
3899 hba->dev_info.clk_gating_wait_us = gating_wait; in ufshcd_get_ref_clk_gating_wait()
3906 * ufshcd_memory_alloc - allocate memory for host memory space data structures
3916 * Return: 0 for success, non-zero in case of failure.
3923 ucdl_size = ufshcd_get_ucd_size(hba) * hba->nutrs; in ufshcd_memory_alloc()
3924 hba->ucdl_base_addr = dmam_alloc_coherent(hba->dev, in ufshcd_memory_alloc()
3926 &hba->ucdl_dma_addr, in ufshcd_memory_alloc()
3932 if (!hba->ucdl_base_addr || in ufshcd_memory_alloc()
3933 WARN_ON(hba->ucdl_dma_addr & (128 - 1))) { in ufshcd_memory_alloc()
3934 dev_err(hba->dev, in ufshcd_memory_alloc()
3943 utrdl_size = (sizeof(struct utp_transfer_req_desc) * hba->nutrs); in ufshcd_memory_alloc()
3944 hba->utrdl_base_addr = dmam_alloc_coherent(hba->dev, in ufshcd_memory_alloc()
3946 &hba->utrdl_dma_addr, in ufshcd_memory_alloc()
3948 if (!hba->utrdl_base_addr || in ufshcd_memory_alloc()
3949 WARN_ON(hba->utrdl_dma_addr & (SZ_1K - 1))) { in ufshcd_memory_alloc()
3950 dev_err(hba->dev, in ufshcd_memory_alloc()
3961 if (hba->utmrdl_base_addr) in ufshcd_memory_alloc()
3967 utmrdl_size = sizeof(struct utp_task_req_desc) * hba->nutmrs; in ufshcd_memory_alloc()
3968 hba->utmrdl_base_addr = dmam_alloc_coherent(hba->dev, in ufshcd_memory_alloc()
3970 &hba->utmrdl_dma_addr, in ufshcd_memory_alloc()
3972 if (!hba->utmrdl_base_addr || in ufshcd_memory_alloc()
3973 WARN_ON(hba->utmrdl_dma_addr & (SZ_1K - 1))) { in ufshcd_memory_alloc()
3974 dev_err(hba->dev, in ufshcd_memory_alloc()
3981 hba->lrb = devm_kcalloc(hba->dev, in ufshcd_memory_alloc()
3982 hba->nutrs, sizeof(struct ufshcd_lrb), in ufshcd_memory_alloc()
3984 if (!hba->lrb) { in ufshcd_memory_alloc()
3985 dev_err(hba->dev, "LRB Memory allocation failed\n"); in ufshcd_memory_alloc()
3990 return -ENOMEM; in ufshcd_memory_alloc()
3994 * ufshcd_host_memory_configure - configure local reference block with
4016 utrdlp = hba->utrdl_base_addr; in ufshcd_host_memory_configure()
4024 cmd_desc_dma_addr = hba->ucdl_dma_addr; in ufshcd_host_memory_configure()
4026 for (i = 0; i < hba->nutrs; i++) { in ufshcd_host_memory_configure()
4034 if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) { in ufshcd_host_memory_configure()
4050 ufshcd_init_lrb(hba, &hba->lrb[i], i); in ufshcd_host_memory_configure()
4055 * ufshcd_dme_link_startup - Notify Unipro to perform link startup
4063 * Return: 0 on success, non-zero value on failure.
4074 dev_dbg(hba->dev, in ufshcd_dme_link_startup()
4075 "dme-link-startup: error code %d\n", ret); in ufshcd_dme_link_startup()
4079 * ufshcd_dme_reset - UIC command for DME_RESET
4085 * Return: 0 on success, non-zero value on failure.
4096 dev_err(hba->dev, in ufshcd_dme_reset()
4097 "dme-reset: error code %d\n", ret); in ufshcd_dme_reset()
4120 * ufshcd_dme_enable - UIC command for DME_ENABLE
4125 * Return: 0 on success, non-zero value on failure.
4136 dev_err(hba->dev, in ufshcd_dme_enable()
4137 "dme-enable: error code %d\n", ret); in ufshcd_dme_enable()
4148 if (!(hba->quirks & UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS)) in ufshcd_add_delay_before_dme_cmd()
4155 if (unlikely(!ktime_to_us(hba->last_dme_cmd_tstamp))) { in ufshcd_add_delay_before_dme_cmd()
4161 hba->last_dme_cmd_tstamp)); in ufshcd_add_delay_before_dme_cmd()
4165 MIN_DELAY_BEFORE_DME_CMDS_US - delta; in ufshcd_add_delay_before_dme_cmd()
4176 hba->last_dme_cmd_tstamp = ktime_get(); in ufshcd_add_delay_before_dme_cmd()
4180 * ufshcd_dme_set_attr - UIC command for DME_SET, DME_PEER_SET
4187 * Return: 0 on success, non-zero value on failure.
4199 "dme-set", in ufshcd_dme_set_attr()
4200 "dme-peer-set" in ufshcd_dme_set_attr()
4210 dev_dbg(hba->dev, "%s: attr-id 0x%x val 0x%x error code %d\n", in ufshcd_dme_set_attr()
4212 } while (ret && peer && --retries); in ufshcd_dme_set_attr()
4215 dev_err(hba->dev, "%s: attr-id 0x%x val 0x%x failed %d retries\n", in ufshcd_dme_set_attr()
4217 UFS_UIC_COMMAND_RETRIES - retries); in ufshcd_dme_set_attr()
4224 * ufshcd_dme_get_attr - UIC command for DME_GET, DME_PEER_GET
4230 * Return: 0 on success, non-zero value on failure.
4240 "dme-get", in ufshcd_dme_get_attr()
4241 "dme-peer-get" in ufshcd_dme_get_attr()
4250 if (peer && (hba->quirks & UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE)) { in ufshcd_dme_get_attr()
4251 orig_pwr_info = hba->pwr_info; in ufshcd_dme_get_attr()
4276 dev_dbg(hba->dev, "%s: attr-id 0x%x error code %d\n", in ufshcd_dme_get_attr()
4278 } while (ret && peer && --retries); in ufshcd_dme_get_attr()
4281 dev_err(hba->dev, "%s: attr-id 0x%x failed %d retries\n", in ufshcd_dme_get_attr()
4283 UFS_UIC_COMMAND_RETRIES - retries); in ufshcd_dme_get_attr()
4288 if (peer && (hba->quirks & UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE) in ufshcd_dme_get_attr()
4297 * ufshcd_dme_rmw - get modify set a DME attribute
4321 * ufshcd_uic_pwr_ctrl - executes UIC commands (which affects the link power
4334 * Return: 0 on success, non-zero value on failure.
4343 mutex_lock(&hba->uic_cmd_mutex); in ufshcd_uic_pwr_ctrl()
4346 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4348 ret = -ENOLINK; in ufshcd_uic_pwr_ctrl()
4351 hba->uic_async_done = &uic_async_done; in ufshcd_uic_pwr_ctrl()
4353 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4356 dev_err(hba->dev, in ufshcd_uic_pwr_ctrl()
4358 cmd->command, cmd->argument3, ret); in ufshcd_uic_pwr_ctrl()
4362 if (!wait_for_completion_timeout(hba->uic_async_done, in ufshcd_uic_pwr_ctrl()
4364 dev_err(hba->dev, in ufshcd_uic_pwr_ctrl()
4366 cmd->command, cmd->argument3); in ufshcd_uic_pwr_ctrl()
4368 if (!cmd->cmd_active) { in ufshcd_uic_pwr_ctrl()
4369 dev_err(hba->dev, "%s: Power Mode Change operation has been completed, go check UPMCRS\n", in ufshcd_uic_pwr_ctrl()
4374 ret = -ETIMEDOUT; in ufshcd_uic_pwr_ctrl()
4381 dev_err(hba->dev, in ufshcd_uic_pwr_ctrl()
4383 cmd->command, status); in ufshcd_uic_pwr_ctrl()
4384 ret = (status != PWR_OK) ? status : -1; in ufshcd_uic_pwr_ctrl()
4393 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4394 hba->active_uic_cmd = NULL; in ufshcd_uic_pwr_ctrl()
4395 hba->uic_async_done = NULL; in ufshcd_uic_pwr_ctrl()
4396 if (ret && !hba->pm_op_in_progress) { in ufshcd_uic_pwr_ctrl()
4401 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4402 mutex_unlock(&hba->uic_cmd_mutex); in ufshcd_uic_pwr_ctrl()
4409 if (ret && hba->pm_op_in_progress) in ufshcd_uic_pwr_ctrl()
4416 * ufshcd_send_bsg_uic_cmd - Send UIC commands requested via BSG layer and retrieve the result
4426 if (uic_cmd->argument1 != UIC_ARG_MIB(PA_PWRMODE) || in ufshcd_send_bsg_uic_cmd()
4427 uic_cmd->command != UIC_CMD_DME_SET) in ufshcd_send_bsg_uic_cmd()
4430 if (hba->quirks & UFSHCD_QUIRK_BROKEN_UIC_CMD) in ufshcd_send_bsg_uic_cmd()
4441 * ufshcd_uic_change_pwr_mode - Perform the UIC power mode chage
4446 * Return: 0 on success, non-zero value on failure.
4457 if (hba->quirks & UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP) { in ufshcd_uic_change_pwr_mode()
4461 dev_err(hba->dev, "%s: failed to enable PA_RXHSUNTERMCAP ret %d\n", in ufshcd_uic_change_pwr_mode()
4481 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_link_recovery()
4482 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_link_recovery()
4484 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_link_recovery()
4491 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_link_recovery()
4493 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_link_recovery()
4495 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_link_recovery()
4498 dev_err(hba->dev, "%s: link recovery failed, err %d", in ufshcd_link_recovery()
4520 dev_err(hba->dev, "%s: hibern8 enter failed. ret = %d\n", in ufshcd_uic_hibern8_enter()
4545 dev_err(hba->dev, "%s: hibern8 exit failed. ret = %d\n", in ufshcd_uic_hibern8_exit()
4550 hba->ufs_stats.last_hibern8_exit_tstamp = local_clock(); in ufshcd_uic_hibern8_exit()
4551 hba->ufs_stats.hibern8_exit_cnt++; in ufshcd_uic_hibern8_exit()
4563 ufshcd_writel(hba, hba->ahit, REG_AUTO_HIBERNATE_IDLE_TIMER); in ufshcd_configure_auto_hibern8()
4568 const u32 cur_ahit = READ_ONCE(hba->ahit); in ufshcd_auto_hibern8_update()
4573 WRITE_ONCE(hba->ahit, ahit); in ufshcd_auto_hibern8_update()
4574 if (!pm_runtime_suspended(&hba->ufs_device_wlun->sdev_gendev)) { in ufshcd_auto_hibern8_update()
4585 * ufshcd_init_pwr_info - setting the POR (power on reset)
4587 * @hba: per-adapter instance
4591 hba->pwr_info.gear_rx = UFS_PWM_G1; in ufshcd_init_pwr_info()
4592 hba->pwr_info.gear_tx = UFS_PWM_G1; in ufshcd_init_pwr_info()
4593 hba->pwr_info.lane_rx = UFS_LANE_1; in ufshcd_init_pwr_info()
4594 hba->pwr_info.lane_tx = UFS_LANE_1; in ufshcd_init_pwr_info()
4595 hba->pwr_info.pwr_rx = SLOWAUTO_MODE; in ufshcd_init_pwr_info()
4596 hba->pwr_info.pwr_tx = SLOWAUTO_MODE; in ufshcd_init_pwr_info()
4597 hba->pwr_info.hs_rate = 0; in ufshcd_init_pwr_info()
4601 * ufshcd_get_max_pwr_mode - reads the max power mode negotiated with device
4602 * @hba: per-adapter instance
4608 struct ufs_pa_layer_attr *pwr_info = &hba->max_pwr_info.info; in ufshcd_get_max_pwr_mode()
4610 if (hba->max_pwr_info.is_valid) in ufshcd_get_max_pwr_mode()
4613 if (hba->quirks & UFSHCD_QUIRK_HIBERN_FASTAUTO) { in ufshcd_get_max_pwr_mode()
4614 pwr_info->pwr_tx = FASTAUTO_MODE; in ufshcd_get_max_pwr_mode()
4615 pwr_info->pwr_rx = FASTAUTO_MODE; in ufshcd_get_max_pwr_mode()
4617 pwr_info->pwr_tx = FAST_MODE; in ufshcd_get_max_pwr_mode()
4618 pwr_info->pwr_rx = FAST_MODE; in ufshcd_get_max_pwr_mode()
4620 pwr_info->hs_rate = PA_HS_MODE_B; in ufshcd_get_max_pwr_mode()
4624 &pwr_info->lane_rx); in ufshcd_get_max_pwr_mode()
4626 &pwr_info->lane_tx); in ufshcd_get_max_pwr_mode()
4628 if (!pwr_info->lane_rx || !pwr_info->lane_tx) { in ufshcd_get_max_pwr_mode()
4629 dev_err(hba->dev, "%s: invalid connected lanes value. rx=%d, tx=%d\n", in ufshcd_get_max_pwr_mode()
4631 pwr_info->lane_rx, in ufshcd_get_max_pwr_mode()
4632 pwr_info->lane_tx); in ufshcd_get_max_pwr_mode()
4633 return -EINVAL; in ufshcd_get_max_pwr_mode()
4636 if (pwr_info->lane_rx != pwr_info->lane_tx) { in ufshcd_get_max_pwr_mode()
4637 dev_err(hba->dev, "%s: asymmetric connected lanes. rx=%d, tx=%d\n", in ufshcd_get_max_pwr_mode()
4639 pwr_info->lane_rx, in ufshcd_get_max_pwr_mode()
4640 pwr_info->lane_tx); in ufshcd_get_max_pwr_mode()
4641 return -EINVAL; in ufshcd_get_max_pwr_mode()
4649 ufshcd_dme_get(hba, UIC_ARG_MIB(PA_MAXRXHSGEAR), &pwr_info->gear_rx); in ufshcd_get_max_pwr_mode()
4650 if (!pwr_info->gear_rx) { in ufshcd_get_max_pwr_mode()
4652 &pwr_info->gear_rx); in ufshcd_get_max_pwr_mode()
4653 if (!pwr_info->gear_rx) { in ufshcd_get_max_pwr_mode()
4654 dev_err(hba->dev, "%s: invalid max pwm rx gear read = %d\n", in ufshcd_get_max_pwr_mode()
4655 __func__, pwr_info->gear_rx); in ufshcd_get_max_pwr_mode()
4656 return -EINVAL; in ufshcd_get_max_pwr_mode()
4658 pwr_info->pwr_rx = SLOW_MODE; in ufshcd_get_max_pwr_mode()
4662 &pwr_info->gear_tx); in ufshcd_get_max_pwr_mode()
4663 if (!pwr_info->gear_tx) { in ufshcd_get_max_pwr_mode()
4665 &pwr_info->gear_tx); in ufshcd_get_max_pwr_mode()
4666 if (!pwr_info->gear_tx) { in ufshcd_get_max_pwr_mode()
4667 dev_err(hba->dev, "%s: invalid max pwm tx gear read = %d\n", in ufshcd_get_max_pwr_mode()
4668 __func__, pwr_info->gear_tx); in ufshcd_get_max_pwr_mode()
4669 return -EINVAL; in ufshcd_get_max_pwr_mode()
4671 pwr_info->pwr_tx = SLOW_MODE; in ufshcd_get_max_pwr_mode()
4674 hba->max_pwr_info.is_valid = true; in ufshcd_get_max_pwr_mode()
4684 if (!hba->force_pmc && in ufshcd_change_power_mode()
4685 pwr_mode->gear_rx == hba->pwr_info.gear_rx && in ufshcd_change_power_mode()
4686 pwr_mode->gear_tx == hba->pwr_info.gear_tx && in ufshcd_change_power_mode()
4687 pwr_mode->lane_rx == hba->pwr_info.lane_rx && in ufshcd_change_power_mode()
4688 pwr_mode->lane_tx == hba->pwr_info.lane_tx && in ufshcd_change_power_mode()
4689 pwr_mode->pwr_rx == hba->pwr_info.pwr_rx && in ufshcd_change_power_mode()
4690 pwr_mode->pwr_tx == hba->pwr_info.pwr_tx && in ufshcd_change_power_mode()
4691 pwr_mode->hs_rate == hba->pwr_info.hs_rate) { in ufshcd_change_power_mode()
4692 dev_dbg(hba->dev, "%s: power already configured\n", __func__); in ufshcd_change_power_mode()
4698 * - PA_RXGEAR, PA_ACTIVERXDATALANES, PA_RXTERMINATION, in ufshcd_change_power_mode()
4699 * - PA_TXGEAR, PA_ACTIVETXDATALANES, PA_TXTERMINATION, in ufshcd_change_power_mode()
4700 * - PA_HSSERIES in ufshcd_change_power_mode()
4702 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_RXGEAR), pwr_mode->gear_rx); in ufshcd_change_power_mode()
4704 pwr_mode->lane_rx); in ufshcd_change_power_mode()
4705 if (pwr_mode->pwr_rx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4706 pwr_mode->pwr_rx == FAST_MODE) in ufshcd_change_power_mode()
4711 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TXGEAR), pwr_mode->gear_tx); in ufshcd_change_power_mode()
4713 pwr_mode->lane_tx); in ufshcd_change_power_mode()
4714 if (pwr_mode->pwr_tx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4715 pwr_mode->pwr_tx == FAST_MODE) in ufshcd_change_power_mode()
4720 if (pwr_mode->pwr_rx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4721 pwr_mode->pwr_tx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4722 pwr_mode->pwr_rx == FAST_MODE || in ufshcd_change_power_mode()
4723 pwr_mode->pwr_tx == FAST_MODE) in ufshcd_change_power_mode()
4725 pwr_mode->hs_rate); in ufshcd_change_power_mode()
4727 if (!(hba->quirks & UFSHCD_QUIRK_SKIP_DEF_UNIPRO_TIMEOUT_SETTING)) { in ufshcd_change_power_mode()
4749 ret = ufshcd_uic_change_pwr_mode(hba, pwr_mode->pwr_rx << 4 in ufshcd_change_power_mode()
4750 | pwr_mode->pwr_tx); in ufshcd_change_power_mode()
4753 dev_err(hba->dev, in ufshcd_change_power_mode()
4756 memcpy(&hba->pwr_info, pwr_mode, in ufshcd_change_power_mode()
4764 * ufshcd_config_pwr_mode - configure a new power mode
4765 * @hba: per-adapter instance
4793 * ufshcd_complete_dev_init() - checks device readiness
4794 * @hba: per-adapter instance
4810 dev_err(hba->dev, in ufshcd_complete_dev_init()
4827 dev_err(hba->dev, in ufshcd_complete_dev_init()
4831 dev_err(hba->dev, in ufshcd_complete_dev_init()
4834 err = -EBUSY; in ufshcd_complete_dev_init()
4841 * ufshcd_make_hba_operational - Make UFS controller operational
4848 * 4. Configure run-stop-registers
4862 ufshcd_config_intr_aggr(hba, hba->nutrs - 1, INT_AGGR_DEF_TO); in ufshcd_make_hba_operational()
4867 ufshcd_writel(hba, lower_32_bits(hba->utrdl_dma_addr), in ufshcd_make_hba_operational()
4869 ufshcd_writel(hba, upper_32_bits(hba->utrdl_dma_addr), in ufshcd_make_hba_operational()
4871 ufshcd_writel(hba, lower_32_bits(hba->utmrdl_dma_addr), in ufshcd_make_hba_operational()
4873 ufshcd_writel(hba, upper_32_bits(hba->utmrdl_dma_addr), in ufshcd_make_hba_operational()
4883 dev_err(hba->dev, in ufshcd_make_hba_operational()
4885 err = -EIO; in ufshcd_make_hba_operational()
4893 * ufshcd_hba_stop - Send controller to reset state
4907 dev_err(hba->dev, "%s: Controller disable failed\n", __func__); in ufshcd_hba_stop()
4912 * ufshcd_hba_execute_hce - initialize the controller
4919 * Return: 0 on success, non-zero value on failure.
4925 for (retry = 3; retry > 0; retry--) { in ufshcd_hba_execute_hce()
4940 * During initialization the HCE bit value changes from 1->0->1. in ufshcd_hba_execute_hce()
4948 ufshcd_delay_us(hba->vps->hba_enable_delay_us, 100); in ufshcd_hba_execute_hce()
4955 dev_err(hba->dev, "Enabling the controller failed\n"); in ufshcd_hba_execute_hce()
4959 return -EIO; in ufshcd_hba_execute_hce()
4973 if (hba->quirks & UFSHCI_QUIRK_BROKEN_HCE) { in ufshcd_hba_enable()
4981 dev_err(hba->dev, "DME_RESET failed\n"); in ufshcd_hba_enable()
4987 dev_err(hba->dev, "Enabling DME failed\n"); in ufshcd_hba_enable()
5022 dev_err(hba->dev, "%s: TX LCC Disable failed, peer = %d, lane = %d, err = %d", in ufshcd_disable_tx_lcc()
5043 e = &hba->ufs_stats.event[id]; in ufshcd_update_evt_hist()
5044 e->val[e->pos] = val; in ufshcd_update_evt_hist()
5045 e->tstamp[e->pos] = local_clock(); in ufshcd_update_evt_hist()
5046 e->cnt += 1; in ufshcd_update_evt_hist()
5047 e->pos = (e->pos + 1) % UFS_EVENT_HIST_LENGTH; in ufshcd_update_evt_hist()
5054 * ufshcd_link_startup - Initialize unipro link startup
5057 * Return: 0 for success, non-zero in case of failure.
5078 /* check if device is detected by inter-connect layer */ in ufshcd_link_startup()
5083 dev_err(hba->dev, "%s: Device not present\n", __func__); in ufshcd_link_startup()
5084 ret = -ENXIO; in ufshcd_link_startup()
5091 * succeeds. So reset the local Uni-Pro and try again. in ufshcd_link_startup()
5099 } while (ret && retries--); in ufshcd_link_startup()
5115 /* Mark that link is up in PWM-G1, 1-lane, SLOW-AUTO mode */ in ufshcd_link_startup()
5119 if (hba->quirks & UFSHCD_QUIRK_BROKEN_LCC) { in ufshcd_link_startup()
5135 dev_err(hba->dev, "link startup failed %d\n", ret); in ufshcd_link_startup()
5144 * ufshcd_verify_dev_init() - Verify device initialization
5145 * @hba: per-adapter instance
5163 for (retries = NOP_OUT_RETRIES; retries > 0; retries--) { in ufshcd_verify_dev_init()
5165 hba->nop_out_timeout); in ufshcd_verify_dev_init()
5167 if (!err || err == -ETIMEDOUT) in ufshcd_verify_dev_init()
5170 dev_dbg(hba->dev, "%s: error %d retrying\n", __func__, err); in ufshcd_verify_dev_init()
5176 dev_err(hba->dev, "%s: NOP OUT failed %d\n", __func__, err); in ufshcd_verify_dev_init()
5181 * ufshcd_setup_links - associate link b/w device wlun and other luns
5193 if (hba->ufs_device_wlun) { in ufshcd_setup_links()
5194 link = device_link_add(&sdev->sdev_gendev, in ufshcd_setup_links()
5195 &hba->ufs_device_wlun->sdev_gendev, in ufshcd_setup_links()
5198 dev_err(&sdev->sdev_gendev, "Failed establishing link - %s\n", in ufshcd_setup_links()
5199 dev_name(&hba->ufs_device_wlun->sdev_gendev)); in ufshcd_setup_links()
5202 hba->luns_avail--; in ufshcd_setup_links()
5204 if (hba->luns_avail == 1) { in ufshcd_setup_links()
5213 hba->luns_avail--; in ufshcd_setup_links()
5218 * ufshcd_lu_init - Initialize the relevant parameters of the LU
5219 * @hba: per-adapter instance
5225 u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun); in ufshcd_lu_init()
5226 u8 lun_qdepth = hba->nutrs; in ufshcd_lu_init()
5236 if (ret == -EOPNOTSUPP) in ufshcd_lu_init()
5245 * In per-LU queueing architecture, bLUQueueDepth will not be 0, then we will in ufshcd_lu_init()
5248 lun_qdepth = min_t(int, desc_buf[UNIT_DESC_PARAM_LU_Q_DEPTH], hba->nutrs); in ufshcd_lu_init()
5254 if (hba->dev_info.f_power_on_wp_en && lun < hba->dev_info.max_lu_supported && in ufshcd_lu_init()
5255 !hba->dev_info.is_lu_power_on_wp && in ufshcd_lu_init()
5257 hba->dev_info.is_lu_power_on_wp = true; in ufshcd_lu_init()
5262 hba->dev_info.b_advanced_rpmb_en = true; in ufshcd_lu_init()
5271 dev_dbg(hba->dev, "Set LU %x queue depth %d\n", lun, lun_qdepth); in ufshcd_lu_init()
5276 * ufshcd_sdev_init - handle initial SCSI device configurations
5285 hba = shost_priv(sdev->host); in ufshcd_sdev_init()
5288 sdev->use_10_for_ms = 1; in ufshcd_sdev_init()
5291 sdev->set_dbd_for_ms = 1; in ufshcd_sdev_init()
5294 sdev->allow_restart = 1; in ufshcd_sdev_init()
5297 sdev->no_report_opcodes = 1; in ufshcd_sdev_init()
5300 sdev->no_write_same = 1; in ufshcd_sdev_init()
5310 * ufshcd_change_queue_depth - change queue depth
5320 return scsi_change_queue_depth(sdev, min(depth, sdev->host->can_queue)); in ufshcd_change_queue_depth()
5324 * ufshcd_sdev_configure - adjust SCSI device configurations
5333 struct ufs_hba *hba = shost_priv(sdev->host); in ufshcd_sdev_configure()
5334 struct request_queue *q = sdev->request_queue; in ufshcd_sdev_configure()
5336 lim->dma_pad_mask = PRDT_DATA_BYTE_COUNT_PAD - 1; in ufshcd_sdev_configure()
5339 * Block runtime-pm until all consumers are added. in ufshcd_sdev_configure()
5343 pm_runtime_get_noresume(&sdev->sdev_gendev); in ufshcd_sdev_configure()
5345 sdev->rpm_autosuspend = 1; in ufshcd_sdev_configure()
5347 * Do not print messages during runtime PM to avoid never-ending cycles in ufshcd_sdev_configure()
5351 sdev->silence_suspend = 1; in ufshcd_sdev_configure()
5353 if (hba->vops && hba->vops->config_scsi_dev) in ufshcd_sdev_configure()
5354 hba->vops->config_scsi_dev(sdev); in ufshcd_sdev_configure()
5362 * ufshcd_sdev_destroy - remove SCSI device configurations
5370 hba = shost_priv(sdev->host); in ufshcd_sdev_destroy()
5373 if (ufshcd_scsi_to_upiu_lun(sdev->lun) == UFS_UPIU_UFS_DEVICE_WLUN) { in ufshcd_sdev_destroy()
5374 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5375 hba->ufs_device_wlun = NULL; in ufshcd_sdev_destroy()
5376 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5377 } else if (hba->ufs_device_wlun) { in ufshcd_sdev_destroy()
5381 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5382 if (hba->ufs_device_wlun) { in ufshcd_sdev_destroy()
5383 supplier = &hba->ufs_device_wlun->sdev_gendev; in ufshcd_sdev_destroy()
5386 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5394 device_link_remove(&sdev->sdev_gendev, supplier); in ufshcd_sdev_destroy()
5401 * ufshcd_scsi_cmd_status - Update SCSI command result based on SCSI status
5434 * ufshcd_transfer_rsp_status - Get overall status of the response
5451 upiu_flags = lrbp->ucd_rsp_ptr->header.flags; in ufshcd_transfer_rsp_status()
5452 resid = be32_to_cpu(lrbp->ucd_rsp_ptr->sr.residual_transfer_count); in ufshcd_transfer_rsp_status()
5458 scsi_set_resid(lrbp->cmd, resid); in ufshcd_transfer_rsp_status()
5463 if (hba->quirks & UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR) { in ufshcd_transfer_rsp_status()
5464 if (lrbp->ucd_rsp_ptr->header.response || in ufshcd_transfer_rsp_status()
5465 lrbp->ucd_rsp_ptr->header.status) in ufshcd_transfer_rsp_status()
5471 hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); in ufshcd_transfer_rsp_status()
5472 switch (ufshcd_get_req_rsp(lrbp->ucd_rsp_ptr)) { in ufshcd_transfer_rsp_status()
5478 scsi_status = lrbp->ucd_rsp_ptr->header.status; in ufshcd_transfer_rsp_status()
5486 * callback as it allows the urgent bkops. in ufshcd_transfer_rsp_status()
5488 * disabling the bkops and if urgent bkops is needed in ufshcd_transfer_rsp_status()
5491 * UFS device needs urgent BKOPs. in ufshcd_transfer_rsp_status()
5493 if (!hba->pm_op_in_progress && in ufshcd_transfer_rsp_status()
5495 ufshcd_is_exception_event(lrbp->ucd_rsp_ptr)) in ufshcd_transfer_rsp_status()
5497 schedule_work(&hba->eeh_work); in ufshcd_transfer_rsp_status()
5502 dev_err(hba->dev, in ufshcd_transfer_rsp_status()
5506 dev_err(hba->dev, in ufshcd_transfer_rsp_status()
5516 dev_warn(hba->dev, in ufshcd_transfer_rsp_status()
5519 lrbp->task_tag); in ufshcd_transfer_rsp_status()
5532 dev_err(hba->dev, in ufshcd_transfer_rsp_status()
5534 ocs, lrbp->task_tag); in ufshcd_transfer_rsp_status()
5541 (host_byte(result) != DID_REQUEUE) && !hba->silence_err_logs) in ufshcd_transfer_rsp_status()
5542 ufshcd_print_tr(hba, lrbp->task_tag, true); in ufshcd_transfer_rsp_status()
5556 if (hba->active_uic_cmd && in ufshcd_is_auto_hibern8_error()
5557 (hba->active_uic_cmd->command == UIC_CMD_DME_HIBER_ENTER || in ufshcd_is_auto_hibern8_error()
5558 hba->active_uic_cmd->command == UIC_CMD_DME_HIBER_EXIT)) in ufshcd_is_auto_hibern8_error()
5565 * ufshcd_uic_cmd_compl - handle completion of uic command
5570 * IRQ_HANDLED - If interrupt is valid
5571 * IRQ_NONE - If invalid interrupt
5578 guard(spinlock_irqsave)(hba->host->host_lock); in ufshcd_uic_cmd_compl()
5579 cmd = hba->active_uic_cmd; in ufshcd_uic_cmd_compl()
5584 hba->errors |= (UFSHCD_UIC_HIBERN8_MASK & intr_status); in ufshcd_uic_cmd_compl()
5587 cmd->argument2 |= ufshcd_get_uic_cmd_result(hba); in ufshcd_uic_cmd_compl()
5588 cmd->argument3 = ufshcd_get_dme_attr_val(hba); in ufshcd_uic_cmd_compl()
5589 if (!hba->uic_async_done) in ufshcd_uic_cmd_compl()
5590 cmd->cmd_active = 0; in ufshcd_uic_cmd_compl()
5591 complete(&cmd->done); in ufshcd_uic_cmd_compl()
5595 if (intr_status & UFSHCD_UIC_PWR_MASK && hba->uic_async_done) { in ufshcd_uic_cmd_compl()
5596 cmd->cmd_active = 0; in ufshcd_uic_cmd_compl()
5597 complete(hba->uic_async_done); in ufshcd_uic_cmd_compl()
5612 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_release_scsi_cmd()
5621 * ufshcd_compl_one_cqe - handle a completion queue entry
5633 lrbp = &hba->lrb[task_tag]; in ufshcd_compl_one_cqe()
5634 if (hba->monitor.enabled) { in ufshcd_compl_one_cqe()
5635 lrbp->compl_time_stamp = ktime_get(); in ufshcd_compl_one_cqe()
5636 lrbp->compl_time_stamp_local_clock = local_clock(); in ufshcd_compl_one_cqe()
5638 cmd = lrbp->cmd; in ufshcd_compl_one_cqe()
5643 cmd->result = ufshcd_transfer_rsp_status(hba, lrbp, cqe); in ufshcd_compl_one_cqe()
5649 ocs = le32_to_cpu(cqe->status) & MASK_OCS; in ufshcd_compl_one_cqe()
5650 lrbp->utr_descriptor_ptr->header.ocs = ocs; in ufshcd_compl_one_cqe()
5652 complete(&hba->dev_cmd.complete); in ufshcd_compl_one_cqe()
5657 * __ufshcd_transfer_req_compl - handle SCSI and query command completion
5666 for_each_set_bit(tag, &completed_reqs, hba->nutrs) in __ufshcd_transfer_req_compl()
5672 UFSHCD_POLL_FROM_INTERRUPT_CONTEXT = -1
5680 for_each_set_bit(tag, completed_reqs, hba->nutrs) { in ufshcd_clear_polled()
5681 struct scsi_cmnd *cmd = hba->lrb[tag].cmd; in ufshcd_clear_polled()
5685 if (scsi_cmd_to_rq(cmd)->cmd_flags & REQ_POLLED) in ufshcd_clear_polled()
5701 if (hba->mcq_enabled) { in ufshcd_poll()
5702 hwq = &hba->uhq[queue_num]; in ufshcd_poll()
5707 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_poll()
5709 completed_reqs = ~tr_doorbell & hba->outstanding_reqs; in ufshcd_poll()
5710 WARN_ONCE(completed_reqs & ~hba->outstanding_reqs, in ufshcd_poll()
5712 hba->outstanding_reqs); in ufshcd_poll()
5717 hba->outstanding_reqs &= ~completed_reqs; in ufshcd_poll()
5718 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_poll()
5727 * ufshcd_mcq_compl_pending_transfer - MCQ mode function. It is
5746 for (tag = 0; tag < hba->nutrs; tag++) { in ufshcd_mcq_compl_pending_transfer()
5747 lrbp = &hba->lrb[tag]; in ufshcd_mcq_compl_pending_transfer()
5748 cmd = lrbp->cmd; in ufshcd_mcq_compl_pending_transfer()
5750 test_bit(SCMD_STATE_COMPLETE, &cmd->state)) in ufshcd_mcq_compl_pending_transfer()
5763 spin_lock_irqsave(&hwq->cq_lock, flags); in ufshcd_mcq_compl_pending_transfer()
5764 if (cmd && !test_bit(SCMD_STATE_COMPLETE, &cmd->state)) { in ufshcd_mcq_compl_pending_transfer()
5769 spin_unlock_irqrestore(&hwq->cq_lock, flags); in ufshcd_mcq_compl_pending_transfer()
5777 * ufshcd_transfer_req_compl - handle SCSI and query command completion
5781 * IRQ_HANDLED - If interrupt is valid
5782 * IRQ_NONE - If invalid interrupt
5794 !(hba->quirks & UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR)) in ufshcd_transfer_req_compl()
5804 ufshcd_poll(hba->host, UFSHCD_POLL_FROM_INTERRUPT_CONTEXT); in ufshcd_transfer_req_compl()
5820 mutex_lock(&hba->ee_ctrl_mutex); in ufshcd_write_ee_control()
5821 err = __ufshcd_write_ee_control(hba, hba->ee_ctrl_mask); in ufshcd_write_ee_control()
5822 mutex_unlock(&hba->ee_ctrl_mutex); in ufshcd_write_ee_control()
5824 dev_err(hba->dev, "%s: failed to write ee control %d\n", in ufshcd_write_ee_control()
5835 mutex_lock(&hba->ee_ctrl_mutex); in ufshcd_update_ee_control()
5838 if (ee_ctrl_mask != hba->ee_ctrl_mask) in ufshcd_update_ee_control()
5842 hba->ee_ctrl_mask = ee_ctrl_mask; in ufshcd_update_ee_control()
5845 mutex_unlock(&hba->ee_ctrl_mutex); in ufshcd_update_ee_control()
5850 * ufshcd_disable_ee - disable exception event
5851 * @hba: per-adapter instance
5857 * Return: zero on success, non-zero error value on failure.
5865 * ufshcd_enable_ee - enable exception event
5866 * @hba: per-adapter instance
5872 * Return: zero on success, non-zero error value on failure.
5880 * ufshcd_enable_auto_bkops - Allow device managed BKOPS
5881 * @hba: per-adapter instance
5895 if (hba->auto_bkops_enabled) in ufshcd_enable_auto_bkops()
5901 dev_err(hba->dev, "%s: failed to enable bkops %d\n", in ufshcd_enable_auto_bkops()
5906 hba->auto_bkops_enabled = true; in ufshcd_enable_auto_bkops()
5912 dev_err(hba->dev, "%s: failed to disable exception event %d\n", in ufshcd_enable_auto_bkops()
5919 * ufshcd_disable_auto_bkops - block device in doing background operations
5920 * @hba: per-adapter instance
5924 * not-operable. Make sure to call ufshcd_enable_auto_bkops() whenever the
5935 if (!hba->auto_bkops_enabled) in ufshcd_disable_auto_bkops()
5940 * urgent bkops exception is allowed. in ufshcd_disable_auto_bkops()
5944 dev_err(hba->dev, "%s: failed to enable exception event %d\n", in ufshcd_disable_auto_bkops()
5952 dev_err(hba->dev, "%s: failed to disable bkops %d\n", in ufshcd_disable_auto_bkops()
5958 hba->auto_bkops_enabled = false; in ufshcd_disable_auto_bkops()
5960 hba->is_urgent_bkops_lvl_checked = false; in ufshcd_disable_auto_bkops()
5966 * ufshcd_force_reset_auto_bkops - force reset auto bkops state
5971 * as well. This function would change the auto-bkops state based on
5977 hba->auto_bkops_enabled = false; in ufshcd_force_reset_auto_bkops()
5978 hba->ee_ctrl_mask |= MASK_EE_URGENT_BKOPS; in ufshcd_force_reset_auto_bkops()
5981 hba->auto_bkops_enabled = true; in ufshcd_force_reset_auto_bkops()
5982 hba->ee_ctrl_mask &= ~MASK_EE_URGENT_BKOPS; in ufshcd_force_reset_auto_bkops()
5985 hba->urgent_bkops_lvl = BKOPS_STATUS_PERF_IMPACT; in ufshcd_force_reset_auto_bkops()
5986 hba->is_urgent_bkops_lvl_checked = false; in ufshcd_force_reset_auto_bkops()
5996 * ufshcd_bkops_ctrl - control the auto bkops based on current bkops status
5997 * @hba: per-adapter instance
6001 * bkops_status is greater than or equal to the "hba->urgent_bkops_lvl",
6004 * Return: 0 for success, non-zero in case of failure.
6006 * NOTE: Caller of this function can check the "hba->auto_bkops_enabled" flag
6012 enum bkops_status status = hba->urgent_bkops_lvl; in ufshcd_bkops_ctrl()
6018 dev_err(hba->dev, "%s: failed to get BKOPS status %d\n", in ufshcd_bkops_ctrl()
6022 dev_err(hba->dev, "%s: invalid BKOPS status %d\n", in ufshcd_bkops_ctrl()
6024 err = -EINVAL; in ufshcd_bkops_ctrl()
6047 if (hba->is_urgent_bkops_lvl_checked) in ufshcd_bkops_exception_event_handler()
6052 dev_err(hba->dev, "%s: failed to get BKOPS status %d\n", in ufshcd_bkops_exception_event_handler()
6058 * We are seeing that some devices are raising the urgent bkops in ufshcd_bkops_exception_event_handler()
6060 * impacted or critical. Handle these device by determining their urgent in ufshcd_bkops_exception_event_handler()
6064 dev_err(hba->dev, "%s: device raised urgent BKOPS exception for bkops status %d\n", in ufshcd_bkops_exception_event_handler()
6066 /* update the current status as the urgent bkops level */ in ufshcd_bkops_exception_event_handler()
6067 hba->urgent_bkops_lvl = curr_status; in ufshcd_bkops_exception_event_handler()
6068 hba->is_urgent_bkops_lvl_checked = true; in ufshcd_bkops_exception_event_handler()
6075 dev_err(hba->dev, "%s: failed to handle urgent bkops %d\n", in ufshcd_bkops_exception_event_handler()
6090 if (hba->dev_info.wspecversion < 0x410) in ufshcd_read_device_lvl_exception_id()
6091 return -EOPNOTSUPP; in ufshcd_read_device_lvl_exception_id()
6094 mutex_lock(&hba->dev_cmd.lock); in ufshcd_read_device_lvl_exception_id()
6100 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in ufshcd_read_device_lvl_exception_id()
6105 dev_err(hba->dev, "%s: failed to read device level exception %d\n", in ufshcd_read_device_lvl_exception_id()
6111 *exception_id = get_unaligned_be64(&upiu_resp->osf3); in ufshcd_read_device_lvl_exception_id()
6113 mutex_unlock(&hba->dev_cmd.lock); in ufshcd_read_device_lvl_exception_id()
6134 hba->dev_info.wb_enabled == enable) in ufshcd_wb_toggle()
6139 dev_err(hba->dev, "%s: Write Booster %s failed %d\n", in ufshcd_wb_toggle()
6144 hba->dev_info.wb_enabled = enable; in ufshcd_wb_toggle()
6145 dev_dbg(hba->dev, "%s: Write Booster %s\n", in ufshcd_wb_toggle()
6159 dev_err(hba->dev, "%s: WB-Buf Flush during H8 %s failed %d\n", in ufshcd_wb_toggle_buf_flush_during_h8()
6163 dev_dbg(hba->dev, "%s: WB-Buf Flush during H8 %s\n", in ufshcd_wb_toggle_buf_flush_during_h8()
6172 hba->dev_info.wb_buf_flush_enabled == enable) in ufshcd_wb_toggle_buf_flush()
6177 dev_err(hba->dev, "%s: WB-Buf Flush %s failed %d\n", in ufshcd_wb_toggle_buf_flush()
6182 hba->dev_info.wb_buf_flush_enabled = enable; in ufshcd_wb_toggle_buf_flush()
6183 dev_dbg(hba->dev, "%s: WB-Buf Flush %s\n", in ufshcd_wb_toggle_buf_flush()
6198 dev_err(hba->dev, "%s: Enable WB buf resize operation failed %d\n", in ufshcd_wb_set_resize_en()
6216 dev_err(hba->dev, "%s: dCurWriteBoosterBufferSize read failed %d\n", in ufshcd_wb_curr_buff_threshold_check()
6222 dev_info(hba->dev, "dCurWBBuf: %d WB disabled until free-space is available\n", in ufshcd_wb_curr_buff_threshold_check()
6227 return avail_buf < hba->vps->wb_flush_threshold; in ufshcd_wb_curr_buff_threshold_check()
6237 hba->caps &= ~UFSHCD_CAP_WB_EN; in ufshcd_wb_force_disable()
6239 dev_info(hba->dev, "%s: WB force disabled\n", __func__); in ufshcd_wb_force_disable()
6253 dev_err(hba->dev, in ufshcd_is_wb_buf_lifetime_available()
6260 dev_err(hba->dev, "%s: WB buf lifetime is exhausted 0x%02X\n", in ufshcd_is_wb_buf_lifetime_available()
6265 dev_dbg(hba->dev, "%s: WB buf lifetime is 0x%02X\n", in ufshcd_is_wb_buf_lifetime_available()
6286 * With user-space reduction enabled, it's enough to enable flush in ufshcd_wb_need_flush()
6289 * With user-space preserved enabled, the current-buffer in ufshcd_wb_need_flush()
6299 dev_warn(hba->dev, "%s: dAvailableWriteBoosterBufferSize read failed %d\n", in ufshcd_wb_need_flush()
6304 if (!hba->dev_info.b_presrv_uspc_en) in ufshcd_wb_need_flush()
6326 * ufshcd_exception_event_handler - handle exceptions raised by device
6341 dev_err(hba->dev, "%s: failed to get exception status %d\n", in ufshcd_exception_event_handler()
6348 if (status & hba->ee_drv_mask & MASK_EE_URGENT_BKOPS) in ufshcd_exception_event_handler()
6351 if (status & hba->ee_drv_mask & MASK_EE_URGENT_TEMP) in ufshcd_exception_event_handler()
6354 if (status & hba->ee_drv_mask & MASK_EE_HEALTH_CRITICAL) { in ufshcd_exception_event_handler()
6355 hba->critical_health_count++; in ufshcd_exception_event_handler()
6356 sysfs_notify(&hba->dev->kobj, NULL, "critical_health"); in ufshcd_exception_event_handler()
6359 if (status & hba->ee_drv_mask & MASK_EE_DEV_LVL_EXCEPTION) { in ufshcd_exception_event_handler()
6360 atomic_inc(&hba->dev_lvl_exception_count); in ufshcd_exception_event_handler()
6361 sysfs_notify(&hba->dev->kobj, NULL, "device_lvl_exception_count"); in ufshcd_exception_event_handler()
6367 /* Complete requests that have door-bell cleared */
6370 if (hba->mcq_enabled) in ufshcd_complete_requests()
6379 * ufshcd_quirk_dl_nac_errors - This function checks if error handling is
6381 * @hba: per-adapter instance
6390 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6395 if (hba->saved_err & (CONTROLLER_FATAL_ERROR | SYSTEM_BUS_FATAL_ERROR)) in ufshcd_quirk_dl_nac_errors()
6398 if ((hba->saved_err & DEVICE_FATAL_ERROR) || in ufshcd_quirk_dl_nac_errors()
6399 ((hba->saved_err & UIC_ERROR) && in ufshcd_quirk_dl_nac_errors()
6400 (hba->saved_uic_err & UFSHCD_UIC_DL_TCx_REPLAY_ERROR))) in ufshcd_quirk_dl_nac_errors()
6403 if ((hba->saved_err & UIC_ERROR) && in ufshcd_quirk_dl_nac_errors()
6404 (hba->saved_uic_err & UFSHCD_UIC_DL_NAC_RECEIVED_ERROR)) { in ufshcd_quirk_dl_nac_errors()
6409 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6411 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6417 if ((hba->saved_err & INT_FATAL_ERRORS) || in ufshcd_quirk_dl_nac_errors()
6418 ((hba->saved_err & UIC_ERROR) && in ufshcd_quirk_dl_nac_errors()
6419 (hba->saved_uic_err & ~UFSHCD_UIC_DL_NAC_RECEIVED_ERROR))) in ufshcd_quirk_dl_nac_errors()
6425 * - If we don't get any response then do error recovery. in ufshcd_quirk_dl_nac_errors()
6426 * - If we get response then clear the DL NAC error bit. in ufshcd_quirk_dl_nac_errors()
6429 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6431 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6437 if (hba->saved_uic_err == UFSHCD_UIC_DL_NAC_RECEIVED_ERROR) in ufshcd_quirk_dl_nac_errors()
6438 hba->saved_err &= ~UIC_ERROR; in ufshcd_quirk_dl_nac_errors()
6440 hba->saved_uic_err &= ~UFSHCD_UIC_DL_NAC_RECEIVED_ERROR; in ufshcd_quirk_dl_nac_errors()
6441 if (!hba->saved_uic_err) in ufshcd_quirk_dl_nac_errors()
6445 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6452 return (hba->saved_uic_err & UFSHCD_UIC_DL_PA_INIT_ERROR) || in ufshcd_is_saved_err_fatal()
6453 (hba->saved_err & (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK)); in ufshcd_is_saved_err_fatal()
6458 lockdep_assert_held(hba->host->host_lock); in ufshcd_schedule_eh_work()
6461 if (hba->ufshcd_state != UFSHCD_STATE_ERROR) { in ufshcd_schedule_eh_work()
6462 if (hba->force_reset || ufshcd_is_link_broken(hba) || in ufshcd_schedule_eh_work()
6464 hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_FATAL; in ufshcd_schedule_eh_work()
6466 hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_NON_FATAL; in ufshcd_schedule_eh_work()
6467 queue_work(hba->eh_wq, &hba->eh_work); in ufshcd_schedule_eh_work()
6473 spin_lock_irq(hba->host->host_lock); in ufshcd_force_error_recovery()
6474 hba->force_reset = true; in ufshcd_force_error_recovery()
6476 spin_unlock_irq(hba->host->host_lock); in ufshcd_force_error_recovery()
6482 mutex_lock(&hba->wb_mutex); in ufshcd_clk_scaling_allow()
6483 down_write(&hba->clk_scaling_lock); in ufshcd_clk_scaling_allow()
6484 hba->clk_scaling.is_allowed = allow; in ufshcd_clk_scaling_allow()
6485 up_write(&hba->clk_scaling_lock); in ufshcd_clk_scaling_allow()
6486 mutex_unlock(&hba->wb_mutex); in ufshcd_clk_scaling_allow()
6492 if (hba->clk_scaling.is_enabled) in ufshcd_clk_scaling_suspend()
6497 if (hba->clk_scaling.is_enabled) in ufshcd_clk_scaling_suspend()
6505 if (pm_runtime_status_suspended(&hba->ufs_device_wlun->sdev_gendev) || in ufshcd_err_handling_prepare()
6506 hba->is_sys_suspended) { in ufshcd_err_handling_prepare()
6517 ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq); in ufshcd_err_handling_prepare()
6518 ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq2); in ufshcd_err_handling_prepare()
6522 pm_op = hba->is_sys_suspended ? UFS_SYSTEM_PM : UFS_RUNTIME_PM; in ufshcd_err_handling_prepare()
6527 hba->clk_scaling.is_enabled) in ufshcd_err_handling_prepare()
6532 blk_mq_quiesce_tagset(&hba->host->tag_set); in ufshcd_err_handling_prepare()
6533 cancel_work_sync(&hba->eeh_work); in ufshcd_err_handling_prepare()
6538 blk_mq_unquiesce_tagset(&hba->host->tag_set); in ufshcd_err_handling_unprepare()
6547 return (!hba->is_powered || hba->shutting_down || in ufshcd_err_handling_should_stop()
6548 !hba->ufs_device_wlun || in ufshcd_err_handling_should_stop()
6549 hba->ufshcd_state == UFSHCD_STATE_ERROR || in ufshcd_err_handling_should_stop()
6550 (!(hba->saved_err || hba->saved_uic_err || hba->force_reset || in ufshcd_err_handling_should_stop()
6557 struct Scsi_Host *shost = hba->host; in ufshcd_recover_pm_error()
6562 hba->is_sys_suspended = false; in ufshcd_recover_pm_error()
6567 ret = pm_runtime_set_active(&hba->ufs_device_wlun->sdev_gendev); in ufshcd_recover_pm_error()
6571 ret = pm_runtime_set_active(hba->dev); in ufshcd_recover_pm_error()
6580 q = sdev->request_queue; in ufshcd_recover_pm_error()
6581 if (q->dev && (q->rpm_status == RPM_SUSPENDED || in ufshcd_recover_pm_error()
6582 q->rpm_status == RPM_SUSPENDING)) in ufshcd_recover_pm_error()
6583 pm_request_resume(q->dev); in ufshcd_recover_pm_error()
6595 struct ufs_pa_layer_attr *pwr_info = &hba->pwr_info; in ufshcd_is_pwr_mode_restore_needed()
6600 if (pwr_info->pwr_rx != ((mode >> PWRMODE_RX_OFFSET) & PWRMODE_MASK)) in ufshcd_is_pwr_mode_restore_needed()
6603 if (pwr_info->pwr_tx != (mode & PWRMODE_MASK)) in ufshcd_is_pwr_mode_restore_needed()
6612 u32 tag = rq->tag; in ufshcd_abort_one()
6614 struct scsi_device *sdev = cmd->device; in ufshcd_abort_one()
6615 struct Scsi_Host *shost = sdev->host; in ufshcd_abort_one()
6619 dev_err(hba->dev, "Aborting tag %d / CDB %#02x %s\n", tag, in ufshcd_abort_one()
6620 hba->lrb[tag].cmd ? hba->lrb[tag].cmd->cmnd[0] : -1, in ufshcd_abort_one()
6627 * ufshcd_abort_all - Abort all pending commands.
6636 blk_mq_tagset_busy_iter(&hba->host->tag_set, ufshcd_abort_one, &ret); in ufshcd_abort_all()
6641 for_each_set_bit(tag, &hba->outstanding_tasks, hba->nutmrs) { in ufshcd_abort_all()
6655 * ufshcd_err_handler - handle UFS errors that require s/w attention
6669 dev_info(hba->dev, in ufshcd_err_handler()
6671 __func__, ufshcd_state_name[hba->ufshcd_state], in ufshcd_err_handler()
6672 hba->is_powered, hba->shutting_down, hba->saved_err, in ufshcd_err_handler()
6673 hba->saved_uic_err, hba->force_reset, in ufshcd_err_handler()
6676 down(&hba->host_sem); in ufshcd_err_handler()
6677 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6679 if (hba->ufshcd_state != UFSHCD_STATE_ERROR) in ufshcd_err_handler()
6680 hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; in ufshcd_err_handler()
6681 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6682 up(&hba->host_sem); in ufshcd_err_handler()
6685 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6688 if (hba->pm_op_in_progress) { in ufshcd_err_handler()
6697 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6699 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6701 /* Complete requests that have door-bell cleared by h/w */ in ufshcd_err_handler()
6703 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6708 if (hba->ufshcd_state != UFSHCD_STATE_ERROR) in ufshcd_err_handler()
6709 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_err_handler()
6717 if ((hba->dev_quirks & UFS_DEVICE_QUIRK_RECOVERY_FROM_DL_NAC_ERRORS) && in ufshcd_err_handler()
6718 !hba->force_reset) { in ufshcd_err_handler()
6721 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6724 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6729 if ((hba->saved_err & (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK)) || in ufshcd_err_handler()
6730 (hba->saved_uic_err && in ufshcd_err_handler()
6731 (hba->saved_uic_err != UFSHCD_UIC_PA_GENERIC_ERROR))) { in ufshcd_err_handler()
6732 bool pr_prdt = !!(hba->saved_err & SYSTEM_BUS_FATAL_ERROR); in ufshcd_err_handler()
6734 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6738 ufshcd_print_tmrs(hba, hba->outstanding_tasks); in ufshcd_err_handler()
6740 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6748 if (hba->force_reset || ufshcd_is_link_broken(hba) || in ufshcd_err_handler()
6750 ((hba->saved_err & UIC_ERROR) && in ufshcd_err_handler()
6751 (hba->saved_uic_err & (UFSHCD_UIC_DL_NAC_RECEIVED_ERROR | in ufshcd_err_handler()
6761 if (hba->saved_uic_err & UFSHCD_UIC_PA_GENERIC_ERROR) { in ufshcd_err_handler()
6762 hba->saved_uic_err &= ~UFSHCD_UIC_PA_GENERIC_ERROR; in ufshcd_err_handler()
6763 if (!hba->saved_uic_err) in ufshcd_err_handler()
6764 hba->saved_err &= ~UIC_ERROR; in ufshcd_err_handler()
6765 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6768 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6769 if (!hba->saved_err && !needs_restore) in ufshcd_err_handler()
6773 hba->silence_err_logs = true; in ufshcd_err_handler()
6775 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6779 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6780 hba->silence_err_logs = false; in ufshcd_err_handler()
6789 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6794 down_write(&hba->clk_scaling_lock); in ufshcd_err_handler()
6795 hba->force_pmc = true; in ufshcd_err_handler()
6796 pmc_err = ufshcd_config_pwr_mode(hba, &(hba->pwr_info)); in ufshcd_err_handler()
6799 dev_err(hba->dev, "%s: Failed to restore power mode, err = %d\n", in ufshcd_err_handler()
6802 hba->force_pmc = false; in ufshcd_err_handler()
6804 up_write(&hba->clk_scaling_lock); in ufshcd_err_handler()
6805 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6813 hba->force_reset = false; in ufshcd_err_handler()
6814 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6817 dev_err(hba->dev, "%s: reset and restore failed with err %d\n", in ufshcd_err_handler()
6821 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6826 if (hba->ufshcd_state == UFSHCD_STATE_RESET) in ufshcd_err_handler()
6827 hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; in ufshcd_err_handler()
6828 if (hba->saved_err || hba->saved_uic_err) in ufshcd_err_handler()
6829 dev_err_ratelimited(hba->dev, "%s: exit: saved_err 0x%x saved_uic_err 0x%x", in ufshcd_err_handler()
6830 __func__, hba->saved_err, hba->saved_uic_err); in ufshcd_err_handler()
6833 if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL && in ufshcd_err_handler()
6834 hba->ufshcd_state != UFSHCD_STATE_ERROR) { in ufshcd_err_handler()
6835 if (--retries) in ufshcd_err_handler()
6837 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_err_handler()
6840 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6842 up(&hba->host_sem); in ufshcd_err_handler()
6844 dev_info(hba->dev, "%s finished; HBA state %s\n", __func__, in ufshcd_err_handler()
6845 ufshcd_state_name[hba->ufshcd_state]); in ufshcd_err_handler()
6849 * ufshcd_update_uic_error - check and set fatal UIC error flags.
6850 * @hba: per-adapter instance
6853 * IRQ_HANDLED - If interrupt is valid
6854 * IRQ_NONE - If invalid interrupt
6871 dev_dbg(hba->dev, "%s: UIC Lane error reported\n", in ufshcd_update_uic_error()
6878 hba->uic_error |= UFSHCD_UIC_PA_GENERIC_ERROR; in ufshcd_update_uic_error()
6879 if (hba->uic_async_done && hba->active_uic_cmd) in ufshcd_update_uic_error()
6880 cmd = hba->active_uic_cmd; in ufshcd_update_uic_error()
6885 if (cmd && (cmd->command == UIC_CMD_DME_SET)) in ufshcd_update_uic_error()
6886 hba->uic_error &= ~UFSHCD_UIC_PA_GENERIC_ERROR; in ufshcd_update_uic_error()
6898 hba->uic_error |= UFSHCD_UIC_DL_PA_INIT_ERROR; in ufshcd_update_uic_error()
6899 else if (hba->dev_quirks & in ufshcd_update_uic_error()
6902 hba->uic_error |= in ufshcd_update_uic_error()
6905 hba->uic_error |= UFSHCD_UIC_DL_TCx_REPLAY_ERROR; in ufshcd_update_uic_error()
6915 hba->uic_error |= UFSHCD_UIC_NL_ERROR; in ufshcd_update_uic_error()
6923 hba->uic_error |= UFSHCD_UIC_TL_ERROR; in ufshcd_update_uic_error()
6931 hba->uic_error |= UFSHCD_UIC_DME_ERROR; in ufshcd_update_uic_error()
6935 dev_dbg(hba->dev, "%s: UIC error flags = 0x%08x\n", in ufshcd_update_uic_error()
6936 __func__, hba->uic_error); in ufshcd_update_uic_error()
6941 * ufshcd_check_errors - Check for errors that need s/w attention
6942 * @hba: per-adapter instance
6946 * IRQ_HANDLED - If interrupt is valid
6947 * IRQ_NONE - If invalid interrupt
6954 guard(spinlock_irqsave)(hba->host->host_lock); in ufshcd_check_errors()
6955 hba->errors |= UFSHCD_ERROR_MASK & intr_status; in ufshcd_check_errors()
6957 if (hba->errors & INT_FATAL_ERRORS) { in ufshcd_check_errors()
6959 hba->errors); in ufshcd_check_errors()
6963 if (hba->errors & UIC_ERROR) { in ufshcd_check_errors()
6964 hba->uic_error = 0; in ufshcd_check_errors()
6966 if (hba->uic_error) in ufshcd_check_errors()
6970 if (hba->errors & UFSHCD_UIC_HIBERN8_MASK) { in ufshcd_check_errors()
6971 dev_err(hba->dev, in ufshcd_check_errors()
6972 "%s: Auto Hibern8 %s failed - status: 0x%08x, upmcrs: 0x%08x\n", in ufshcd_check_errors()
6973 __func__, (hba->errors & UIC_HIBERNATE_ENTER) ? in ufshcd_check_errors()
6975 hba->errors, ufshcd_get_upmcrs(hba)); in ufshcd_check_errors()
6977 hba->errors); in ufshcd_check_errors()
6987 hba->saved_err |= hba->errors; in ufshcd_check_errors()
6988 hba->saved_uic_err |= hba->uic_error; in ufshcd_check_errors()
6991 if ((hba->saved_err & in ufshcd_check_errors()
6993 (hba->saved_uic_err && in ufshcd_check_errors()
6994 (hba->saved_uic_err != UFSHCD_UIC_PA_GENERIC_ERROR))) { in ufshcd_check_errors()
6995 dev_err(hba->dev, "%s: saved_err 0x%x saved_uic_err 0x%x\n", in ufshcd_check_errors()
6996 __func__, hba->saved_err, in ufshcd_check_errors()
6997 hba->saved_uic_err); in ufshcd_check_errors()
7006 * if (!queue_eh_work) - in ufshcd_check_errors()
7007 * Other errors are either non-fatal where host recovers in ufshcd_check_errors()
7011 hba->errors = 0; in ufshcd_check_errors()
7012 hba->uic_error = 0; in ufshcd_check_errors()
7018 * ufshcd_tmc_handler - handle task management function completion
7022 * IRQ_HANDLED - If interrupt is valid
7023 * IRQ_NONE - If invalid interrupt
7031 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_tmc_handler()
7033 issued = hba->outstanding_tasks & ~pending; in ufshcd_tmc_handler()
7034 for_each_set_bit(tag, &issued, hba->nutmrs) { in ufshcd_tmc_handler()
7035 struct request *req = hba->tmf_rqs[tag]; in ufshcd_tmc_handler()
7036 struct completion *c = req->end_io_data; in ufshcd_tmc_handler()
7041 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_tmc_handler()
7047 * ufshcd_handle_mcq_cq_events - handle MCQ completion queue events
7062 outstanding_cqs = (1U << hba->nr_hw_queues) - 1; in ufshcd_handle_mcq_cq_events()
7065 nr_queues = hba->nr_hw_queues - hba->nr_queues[HCTX_TYPE_POLL]; in ufshcd_handle_mcq_cq_events()
7067 hwq = &hba->uhq[i]; in ufshcd_handle_mcq_cq_events()
7081 * ufshcd_sl_intr - Interrupt service routine
7086 * IRQ_HANDLED - If interrupt is valid
7087 * IRQ_NONE - If invalid interrupt
7096 if (intr_status & UFSHCD_ERROR_MASK || hba->errors) in ufshcd_sl_intr()
7112 * ufshcd_threaded_intr - Threaded interrupt service routine
7117 * IRQ_HANDLED - If interrupt is valid
7118 * IRQ_NONE - If invalid interrupt
7125 int retries = hba->nutrs; in ufshcd_threaded_intr()
7130 * There could be max of hba->nutrs reqs in flight and in worst case in ufshcd_threaded_intr()
7135 while (intr_status && retries--) { in ufshcd_threaded_intr()
7147 hba->outstanding_reqs) && !ufshcd_eh_in_progress(hba)) { in ufshcd_threaded_intr()
7148 dev_err(hba->dev, "%s: Unhandled interrupt 0x%08x (0x%08x, 0x%08x)\n", in ufshcd_threaded_intr()
7160 * ufshcd_intr - Main interrupt service routine
7165 * IRQ_HANDLED - If interrupt is valid
7166 * IRQ_WAKE_THREAD - If handling is moved to threaded handled
7167 * IRQ_NONE - If invalid interrupt
7175 if (!hba->mcq_enabled || !hba->mcq_esi_enabled) in ufshcd_intr()
7192 if (!test_bit(tag, &hba->outstanding_tasks)) in ufshcd_clear_tm_cmd()
7202 dev_err(hba->dev, "Clearing task management function with tag %d %s\n", in ufshcd_clear_tm_cmd()
7212 struct request_queue *q = hba->tmf_queue; in __ufshcd_issue_tm_cmd()
7213 struct Scsi_Host *host = hba->host; in __ufshcd_issue_tm_cmd()
7226 req->end_io_data = &wait; in __ufshcd_issue_tm_cmd()
7229 spin_lock_irqsave(host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7231 task_tag = req->tag; in __ufshcd_issue_tm_cmd()
7232 hba->tmf_rqs[req->tag] = req; in __ufshcd_issue_tm_cmd()
7233 treq->upiu_req.req_header.task_tag = task_tag; in __ufshcd_issue_tm_cmd()
7235 memcpy(hba->utmrdl_base_addr + task_tag, treq, sizeof(*treq)); in __ufshcd_issue_tm_cmd()
7238 __set_bit(task_tag, &hba->outstanding_tasks); in __ufshcd_issue_tm_cmd()
7240 spin_unlock_irqrestore(host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7252 dev_err(hba->dev, "%s: task management cmd 0x%.2x timed-out\n", in __ufshcd_issue_tm_cmd()
7255 dev_WARN(hba->dev, "%s: unable to clear tm cmd (slot %d) after timeout\n", in __ufshcd_issue_tm_cmd()
7257 err = -ETIMEDOUT; in __ufshcd_issue_tm_cmd()
7260 memcpy(treq, hba->utmrdl_base_addr + task_tag, sizeof(*treq)); in __ufshcd_issue_tm_cmd()
7265 spin_lock_irqsave(hba->host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7266 hba->tmf_rqs[req->tag] = NULL; in __ufshcd_issue_tm_cmd()
7267 __clear_bit(task_tag, &hba->outstanding_tasks); in __ufshcd_issue_tm_cmd()
7268 spin_unlock_irqrestore(hba->host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7277 * ufshcd_issue_tm_cmd - issues task management commands to controller
7284 * Return: non-zero value on error, zero on success.
7310 if (err == -ETIMEDOUT) in ufshcd_issue_tm_cmd()
7315 dev_err(hba->dev, "%s: failed, ocs = 0x%x\n", in ufshcd_issue_tm_cmd()
7324 * ufshcd_issue_devman_upiu_cmd - API for sending "utrd" type requests
7325 * @hba: per-adapter instance
7333 * Those type of requests uses UTP Transfer Request Descriptor - utrd.
7338 * the caller is expected to hold the hba->dev_cmd.lock mutex.
7349 const u32 tag = hba->reserved_slot; in ufshcd_issue_devman_upiu_cmd()
7350 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_issue_devman_upiu_cmd()
7354 /* Protects use of hba->reserved_slot. */ in ufshcd_issue_devman_upiu_cmd()
7355 lockdep_assert_held(&hba->dev_cmd.lock); in ufshcd_issue_devman_upiu_cmd()
7362 req_upiu->header.task_tag = tag; in ufshcd_issue_devman_upiu_cmd()
7365 memcpy(lrbp->ucd_req_ptr, req_upiu, sizeof(*lrbp->ucd_req_ptr)); in ufshcd_issue_devman_upiu_cmd()
7371 memcpy(lrbp->ucd_req_ptr + 1, desc_buff, *buff_len); in ufshcd_issue_devman_upiu_cmd()
7375 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_issue_devman_upiu_cmd()
7378 * ignore the returning value here - ufshcd_check_query_response is in ufshcd_issue_devman_upiu_cmd()
7385 memcpy(rsp_upiu, lrbp->ucd_rsp_ptr, sizeof(*rsp_upiu)); in ufshcd_issue_devman_upiu_cmd()
7387 u8 *descp = (u8 *)lrbp->ucd_rsp_ptr + sizeof(*rsp_upiu); in ufshcd_issue_devman_upiu_cmd()
7388 u16 resp_len = be16_to_cpu(lrbp->ucd_rsp_ptr->header in ufshcd_issue_devman_upiu_cmd()
7395 dev_warn(hba->dev, in ufshcd_issue_devman_upiu_cmd()
7399 err = -EINVAL; in ufshcd_issue_devman_upiu_cmd()
7407 * ufshcd_exec_raw_upiu_cmd - API function for sending raw upiu commands
7408 * @hba: per-adapter instance
7410 * @rsp_upiu: upiu reply - only 8 DW as we do not support scsi commands
7434 u8 tm_f = req_upiu->header.tm_function; in ufshcd_exec_raw_upiu_cmd()
7455 if (err == -ETIMEDOUT) in ufshcd_exec_raw_upiu_cmd()
7460 dev_err(hba->dev, "%s: failed, ocs = 0x%x\n", __func__, in ufshcd_exec_raw_upiu_cmd()
7469 err = -EINVAL; in ufshcd_exec_raw_upiu_cmd()
7478 * ufshcd_advanced_rpmb_req_handler - handle advanced RPMB request
7496 const u32 tag = hba->reserved_slot; in ufshcd_advanced_rpmb_req_handler()
7497 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_advanced_rpmb_req_handler()
7503 int ehs = (hba->capabilities & MASK_EHSLUTRD_SUPPORTED) ? 2 : 0; in ufshcd_advanced_rpmb_req_handler()
7505 /* Protects use of hba->reserved_slot. */ in ufshcd_advanced_rpmb_req_handler()
7513 req_upiu->header.task_tag = tag; in ufshcd_advanced_rpmb_req_handler()
7516 memcpy(lrbp->ucd_req_ptr, req_upiu, sizeof(*lrbp->ucd_req_ptr)); in ufshcd_advanced_rpmb_req_handler()
7518 memcpy(lrbp->ucd_req_ptr + 1, req_ehs, sizeof(*req_ehs)); in ufshcd_advanced_rpmb_req_handler()
7523 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_advanced_rpmb_req_handler()
7529 memcpy(rsp_upiu, lrbp->ucd_rsp_ptr, sizeof(*rsp_upiu)); in ufshcd_advanced_rpmb_req_handler()
7531 result = (lrbp->ucd_rsp_ptr->header.response << 8) | in ufshcd_advanced_rpmb_req_handler()
7532 lrbp->ucd_rsp_ptr->header.status; in ufshcd_advanced_rpmb_req_handler()
7534 ehs_len = lrbp->ucd_rsp_ptr->header.ehs_length; in ufshcd_advanced_rpmb_req_handler()
7545 ehs_data = (u8 *)lrbp->ucd_rsp_ptr + EHS_OFFSET_IN_RESPONSE; in ufshcd_advanced_rpmb_req_handler()
7556 * ufshcd_eh_device_reset_handler() - Reset a single logical unit.
7572 host = cmd->device->host; in ufshcd_eh_device_reset_handler()
7575 lun = ufshcd_scsi_to_upiu_lun(cmd->device->lun); in ufshcd_eh_device_reset_handler()
7583 if (hba->mcq_enabled) { in ufshcd_eh_device_reset_handler()
7584 for (pos = 0; pos < hba->nutrs; pos++) { in ufshcd_eh_device_reset_handler()
7585 lrbp = &hba->lrb[pos]; in ufshcd_eh_device_reset_handler()
7586 if (ufshcd_cmd_inflight(lrbp->cmd) && in ufshcd_eh_device_reset_handler()
7587 lrbp->lun == lun) { in ufshcd_eh_device_reset_handler()
7589 hwq = ufshcd_mcq_req_to_hwq(hba, scsi_cmd_to_rq(lrbp->cmd)); in ufshcd_eh_device_reset_handler()
7598 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7599 for_each_set_bit(pos, &hba->outstanding_reqs, hba->nutrs) in ufshcd_eh_device_reset_handler()
7600 if (hba->lrb[pos].lun == lun) in ufshcd_eh_device_reset_handler()
7602 hba->outstanding_reqs &= ~pending_reqs; in ufshcd_eh_device_reset_handler()
7603 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7605 for_each_set_bit(pos, &pending_reqs, hba->nutrs) { in ufshcd_eh_device_reset_handler()
7607 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7610 hba->outstanding_reqs |= not_cleared; in ufshcd_eh_device_reset_handler()
7612 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7614 dev_err(hba->dev, "%s: failed to clear request %d\n", in ufshcd_eh_device_reset_handler()
7621 hba->req_abort_count = 0; in ufshcd_eh_device_reset_handler()
7626 dev_err(hba->dev, "%s: failed with err %d\n", __func__, err); in ufshcd_eh_device_reset_handler()
7637 for_each_set_bit(tag, &bitmap, hba->nutrs) { in ufshcd_set_req_abort_skip()
7638 lrbp = &hba->lrb[tag]; in ufshcd_set_req_abort_skip()
7639 lrbp->req_abort_skip = true; in ufshcd_set_req_abort_skip()
7644 * ufshcd_try_to_abort_task - abort a specific task
7649 * command, and in host controller by clearing the door-bell register. There can
7654 * Return: zero on success, non-zero on failure.
7658 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_try_to_abort_task()
7663 for (poll_cnt = 100; poll_cnt; poll_cnt--) { in ufshcd_try_to_abort_task()
7664 err = ufshcd_issue_tm_cmd(hba, lrbp->lun, lrbp->task_tag, in ufshcd_try_to_abort_task()
7668 dev_err(hba->dev, "%s: cmd pending in the device. tag = %d\n", in ufshcd_try_to_abort_task()
7677 hba->dev, in ufshcd_try_to_abort_task()
7680 if (!ufshcd_cmd_inflight(lrbp->cmd)) { in ufshcd_try_to_abort_task()
7681 dev_info(hba->dev, in ufshcd_try_to_abort_task()
7688 dev_err(hba->dev, in ufshcd_try_to_abort_task()
7696 return -EBUSY; in ufshcd_try_to_abort_task()
7698 err = ufshcd_issue_tm_cmd(hba, lrbp->lun, lrbp->task_tag, in ufshcd_try_to_abort_task()
7703 dev_err(hba->dev, "%s: issued. tag = %d, err %d\n", in ufshcd_try_to_abort_task()
7711 dev_err(hba->dev, "%s: Failed clearing cmd at tag %d, err %d\n", in ufshcd_try_to_abort_task()
7718 * ufshcd_abort - scsi host template eh_abort_handler callback
7725 struct Scsi_Host *host = cmd->device->host; in ufshcd_abort()
7727 int tag = scsi_cmd_to_rq(cmd)->tag; in ufshcd_abort()
7728 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_abort()
7736 if (!hba->mcq_enabled) { in ufshcd_abort()
7738 if (!test_bit(tag, &hba->outstanding_reqs)) { in ufshcd_abort()
7740 dev_err(hba->dev, in ufshcd_abort()
7742 __func__, tag, hba->outstanding_reqs, reg); in ufshcd_abort()
7748 dev_info(hba->dev, "%s: Device abort task at tag %d\n", __func__, tag); in ufshcd_abort()
7758 if (!hba->req_abort_count) { in ufshcd_abort()
7767 hba->req_abort_count++; in ufshcd_abort()
7769 if (!hba->mcq_enabled && !(reg & (1 << tag))) { in ufshcd_abort()
7771 dev_err(hba->dev, in ufshcd_abort()
7779 * Task abort to the device W-LUN is illegal. When this command in ufshcd_abort()
7783 * the lrb taken by this cmd and re-set it in outstanding_reqs, in ufshcd_abort()
7786 if (lrbp->lun == UFS_UPIU_UFS_DEVICE_WLUN) { in ufshcd_abort()
7787 ufshcd_update_evt_hist(hba, UFS_EVT_ABORT, lrbp->lun); in ufshcd_abort()
7789 spin_lock_irqsave(host->host_lock, flags); in ufshcd_abort()
7790 hba->force_reset = true; in ufshcd_abort()
7792 spin_unlock_irqrestore(host->host_lock, flags); in ufshcd_abort()
7796 if (hba->mcq_enabled) { in ufshcd_abort()
7803 if (lrbp->req_abort_skip) { in ufshcd_abort()
7804 dev_err(hba->dev, "%s: skipping abort\n", __func__); in ufshcd_abort()
7805 ufshcd_set_req_abort_skip(hba, hba->outstanding_reqs); in ufshcd_abort()
7811 dev_err(hba->dev, "%s: failed with err %d\n", __func__, err); in ufshcd_abort()
7812 ufshcd_set_req_abort_skip(hba, hba->outstanding_reqs); in ufshcd_abort()
7821 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_abort()
7822 outstanding = __test_and_clear_bit(tag, &hba->outstanding_reqs); in ufshcd_abort()
7823 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_abort()
7837 * ufshcd_process_probe_result - Process the ufshcd_probe_hba() result.
7847 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_process_probe_result()
7849 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_process_probe_result()
7850 else if (hba->ufshcd_state == UFSHCD_STATE_RESET) in ufshcd_process_probe_result()
7851 hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; in ufshcd_process_probe_result()
7852 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_process_probe_result()
7856 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_process_probe_result()
7860 * ufshcd_host_reset_and_restore - reset and restore host controller
7861 * @hba: per-adapter instance
7864 * local and remote (device) Uni-Pro stack and the attributes
7867 * Return: zero on success, non-zero on failure.
7878 hba->silence_err_logs = true; in ufshcd_host_reset_and_restore()
7880 hba->silence_err_logs = false; in ufshcd_host_reset_and_restore()
7899 dev_err(hba->dev, "%s: Host init failed %d\n", __func__, err); in ufshcd_host_reset_and_restore()
7905 * ufshcd_reset_and_restore - reset and re-initialize host/device
7906 * @hba: per-adapter instance
7908 * Reset and recover device, host and re-establish link. This
7911 * Return: zero on success, non-zero on failure.
7921 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7927 saved_err |= hba->saved_err; in ufshcd_reset_and_restore()
7928 saved_uic_err |= hba->saved_uic_err; in ufshcd_reset_and_restore()
7929 hba->saved_err = 0; in ufshcd_reset_and_restore()
7930 hba->saved_uic_err = 0; in ufshcd_reset_and_restore()
7931 hba->force_reset = false; in ufshcd_reset_and_restore()
7932 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_reset_and_restore()
7933 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7940 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7944 if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL && in ufshcd_reset_and_restore()
7945 hba->ufshcd_state != UFSHCD_STATE_ERROR && in ufshcd_reset_and_restore()
7946 hba->ufshcd_state != UFSHCD_STATE_EH_SCHEDULED_NON_FATAL) in ufshcd_reset_and_restore()
7947 err = -EAGAIN; in ufshcd_reset_and_restore()
7948 } while (err && --retries); in ufshcd_reset_and_restore()
7951 * Inform scsi mid-layer that we did reset and allow to handle in ufshcd_reset_and_restore()
7954 scsi_report_bus_reset(hba->host, 0); in ufshcd_reset_and_restore()
7956 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_reset_and_restore()
7957 hba->saved_err |= saved_err; in ufshcd_reset_and_restore()
7958 hba->saved_uic_err |= saved_uic_err; in ufshcd_reset_and_restore()
7960 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7966 * ufshcd_eh_host_reset_handler - host reset handler registered to scsi layer
7977 hba = shost_priv(cmd->device->host); in ufshcd_eh_host_reset_handler()
7981 * stuck in this function waiting for flush_work(&hba->eh_work). And in ufshcd_eh_host_reset_handler()
7985 if (hba->pm_op_in_progress) { in ufshcd_eh_host_reset_handler()
7992 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7993 hba->force_reset = true; in ufshcd_eh_host_reset_handler()
7995 dev_err(hba->dev, "%s: reset in progress - 1\n", __func__); in ufshcd_eh_host_reset_handler()
7996 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7998 flush_work(&hba->eh_work); in ufshcd_eh_host_reset_handler()
8000 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
8001 if (hba->ufshcd_state == UFSHCD_STATE_ERROR) in ufshcd_eh_host_reset_handler()
8003 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
8009 * ufshcd_get_max_icc_level - calculate the ICC level
8024 for (i = start_scan; i >= 0; i--) { in ufshcd_get_max_icc_level()
8055 * ufshcd_find_max_sup_active_icc_level - calculate the max ICC level
8057 * @hba: per-adapter instance
8067 if (!hba->vreg_info.vcc || !hba->vreg_info.vccq || in ufshcd_find_max_sup_active_icc_level()
8068 !hba->vreg_info.vccq2) { in ufshcd_find_max_sup_active_icc_level()
8071 * never-ending cycles of messages written back to storage by in ufshcd_find_max_sup_active_icc_level()
8075 dev_dbg(hba->dev, in ufshcd_find_max_sup_active_icc_level()
8081 if (hba->vreg_info.vcc->max_uA) in ufshcd_find_max_sup_active_icc_level()
8083 hba->vreg_info.vcc->max_uA, in ufshcd_find_max_sup_active_icc_level()
8084 POWER_DESC_MAX_ACTV_ICC_LVLS - 1, in ufshcd_find_max_sup_active_icc_level()
8087 if (hba->vreg_info.vccq->max_uA) in ufshcd_find_max_sup_active_icc_level()
8089 hba->vreg_info.vccq->max_uA, in ufshcd_find_max_sup_active_icc_level()
8093 if (hba->vreg_info.vccq2->max_uA) in ufshcd_find_max_sup_active_icc_level()
8095 hba->vreg_info.vccq2->max_uA, in ufshcd_find_max_sup_active_icc_level()
8115 dev_err(hba->dev, in ufshcd_set_active_icc_lvl()
8122 dev_dbg(hba->dev, "%s: setting icc_level 0x%x", __func__, icc_level); in ufshcd_set_active_icc_lvl()
8128 dev_err(hba->dev, in ufshcd_set_active_icc_lvl()
8138 struct Scsi_Host *shost = sdev->host; in ufshcd_blk_pm_runtime_init()
8141 blk_pm_runtime_init(sdev->request_queue, &sdev->sdev_gendev); in ufshcd_blk_pm_runtime_init()
8142 if (sdev->rpm_autosuspend) in ufshcd_blk_pm_runtime_init()
8143 pm_runtime_set_autosuspend_delay(&sdev->sdev_gendev, in ufshcd_blk_pm_runtime_init()
8144 shost->rpm_autosuspend_delay); in ufshcd_blk_pm_runtime_init()
8149 * ufshcd_scsi_add_wlus - Adds required W-LUs
8150 * @hba: per-adapter instance
8171 * Return: zero on success (all required W-LUs are added successfully),
8172 * non-zero error value on failure (if failed to add any of the required W-LU).
8179 hba->ufs_device_wlun = __scsi_add_device(hba->host, 0, 0, in ufshcd_scsi_add_wlus()
8181 if (IS_ERR(hba->ufs_device_wlun)) { in ufshcd_scsi_add_wlus()
8182 ret = PTR_ERR(hba->ufs_device_wlun); in ufshcd_scsi_add_wlus()
8183 hba->ufs_device_wlun = NULL; in ufshcd_scsi_add_wlus()
8186 scsi_device_put(hba->ufs_device_wlun); in ufshcd_scsi_add_wlus()
8188 sdev_rpmb = __scsi_add_device(hba->host, 0, 0, in ufshcd_scsi_add_wlus()
8197 sdev_boot = __scsi_add_device(hba->host, 0, 0, in ufshcd_scsi_add_wlus()
8200 dev_err(hba->dev, "%s: BOOT WLUN not found\n", __func__); in ufshcd_scsi_add_wlus()
8208 scsi_remove_device(hba->ufs_device_wlun); in ufshcd_scsi_add_wlus()
8215 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_wb_probe()
8224 * Probe WB only for UFS-2.2 and UFS-3.1 (and later) devices or in ufshcd_wb_probe()
8228 if (!(dev_info->wspecversion >= 0x310 || in ufshcd_wb_probe()
8229 dev_info->wspecversion == 0x220 || in ufshcd_wb_probe()
8230 (hba->dev_quirks & UFS_DEVICE_QUIRK_SUPPORT_EXTENDED_FEATURES))) in ufshcd_wb_probe()
8244 dev_info->wb_buffer_type = desc_buf[DEVICE_DESC_PARAM_WB_TYPE]; in ufshcd_wb_probe()
8246 dev_info->ext_wb_sup = get_unaligned_be16(desc_buf + in ufshcd_wb_probe()
8249 dev_info->b_presrv_uspc_en = in ufshcd_wb_probe()
8252 if (dev_info->wb_buffer_type == WB_BUF_MODE_SHARED) { in ufshcd_wb_probe()
8265 dev_info->wb_dedicated_lu = lun; in ufshcd_wb_probe()
8280 hba->caps &= ~UFSHCD_CAP_WB_EN; in ufshcd_wb_probe()
8285 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_temp_notif_probe()
8289 if (!(hba->caps & UFSHCD_CAP_TEMP_NOTIF) || dev_info->wspecversion < 0x300) in ufshcd_temp_notif_probe()
8310 if (hba->dev_info.wspecversion < 0x410) in ufshcd_device_lvl_exception_probe()
8318 atomic_set(&hba->dev_lvl_exception_count, 0); in ufshcd_device_lvl_exception_probe()
8324 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_set_rtt()
8327 int host_rtt_cap = hba->vops && hba->vops->max_num_rtt ? in ufshcd_set_rtt()
8328 hba->vops->max_num_rtt : hba->nortt; in ufshcd_set_rtt()
8330 /* RTT override makes sense only for UFS-4.0 and above */ in ufshcd_set_rtt()
8331 if (dev_info->wspecversion < 0x400) in ufshcd_set_rtt()
8336 dev_err(hba->dev, "failed reading bMaxNumOfRTT\n"); in ufshcd_set_rtt()
8344 rtt = min_t(int, dev_info->rtt_cap, host_rtt_cap); in ufshcd_set_rtt()
8351 dev_err(hba->dev, "failed writing bMaxNumOfRTT\n"); in ufshcd_set_rtt()
8358 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_fixup_dev_quirks()
8363 for (f = fixups; f->quirk; f++) { in ufshcd_fixup_dev_quirks()
8364 if ((f->wmanufacturerid == dev_info->wmanufacturerid || in ufshcd_fixup_dev_quirks()
8365 f->wmanufacturerid == UFS_ANY_VENDOR) && in ufshcd_fixup_dev_quirks()
8366 ((dev_info->model && in ufshcd_fixup_dev_quirks()
8367 STR_PRFX_EQUAL(f->model, dev_info->model)) || in ufshcd_fixup_dev_quirks()
8368 !strcmp(f->model, UFS_ANY_MODEL))) in ufshcd_fixup_dev_quirks()
8369 hba->dev_quirks |= f->quirk; in ufshcd_fixup_dev_quirks()
8391 if (ts64.tv_sec < hba->dev_info.rtc_time_baseline) { in ufshcd_update_rtc()
8392 dev_warn_once(hba->dev, "%s: Current time precedes previous setting!\n", __func__); in ufshcd_update_rtc()
8397 * The Absolute RTC mode has a 136-year limit, spanning from 2010 to 2146. If a time beyond in ufshcd_update_rtc()
8400 val = ts64.tv_sec - hba->dev_info.rtc_time_baseline; in ufshcd_update_rtc()
8411 dev_err(hba->dev, "%s: Failed to update rtc %d\n", __func__, err); in ufshcd_update_rtc()
8412 else if (hba->dev_info.rtc_type == UFS_RTC_RELATIVE) in ufshcd_update_rtc()
8413 hba->dev_info.rtc_time_baseline = ts64.tv_sec; in ufshcd_update_rtc()
8424 hba->ufshcd_state == UFSHCD_STATE_OPERATIONAL && in ufshcd_rtc_work()
8425 !hba->clk_gating.active_reqs) in ufshcd_rtc_work()
8428 if (ufshcd_is_ufs_dev_active(hba) && hba->dev_info.rtc_update_period) in ufshcd_rtc_work()
8429 schedule_delayed_work(&hba->ufs_rtc_update_work, in ufshcd_rtc_work()
8430 msecs_to_jiffies(hba->dev_info.rtc_update_period)); in ufshcd_rtc_work()
8436 struct ufs_dev_info *dev_info = &hba->dev_info; in ufs_init_rtc()
8439 dev_info->rtc_type = UFS_RTC_ABSOLUTE; in ufs_init_rtc()
8446 dev_info->rtc_time_baseline = mktime64(2010, 1, 1, 0, 0, 0) - in ufs_init_rtc()
8449 dev_info->rtc_type = UFS_RTC_RELATIVE; in ufs_init_rtc()
8450 dev_info->rtc_time_baseline = 0; in ufs_init_rtc()
8458 dev_info->rtc_update_period = 0; in ufs_init_rtc()
8466 struct ufs_dev_info *dev_info = &hba->dev_info; in ufs_get_device_desc()
8470 err = -ENOMEM; in ufs_get_device_desc()
8477 dev_err(hba->dev, "%s: Failed reading Device Desc. err = %d\n", in ufs_get_device_desc()
8486 dev_info->wmanufacturerid = desc_buf[DEVICE_DESC_PARAM_MANF_ID] << 8 | in ufs_get_device_desc()
8490 dev_info->wspecversion = desc_buf[DEVICE_DESC_PARAM_SPEC_VER] << 8 | in ufs_get_device_desc()
8492 dev_info->bqueuedepth = desc_buf[DEVICE_DESC_PARAM_Q_DPTH]; in ufs_get_device_desc()
8494 dev_info->rtt_cap = desc_buf[DEVICE_DESC_PARAM_RTT_CAP]; in ufs_get_device_desc()
8496 dev_info->hid_sup = get_unaligned_be32(desc_buf + in ufs_get_device_desc()
8500 sysfs_update_group(&hba->dev->kobj, &ufs_sysfs_hid_group); in ufs_get_device_desc()
8505 &dev_info->model, SD_ASCII_STD); in ufs_get_device_desc()
8507 dev_err(hba->dev, "%s: Failed reading Product Name. err = %d\n", in ufs_get_device_desc()
8512 hba->luns_avail = desc_buf[DEVICE_DESC_PARAM_NUM_LU] + in ufs_get_device_desc()
8521 if (dev_info->wspecversion >= 0x410) { in ufs_get_device_desc()
8522 hba->critical_health_count = 0; in ufs_get_device_desc()
8543 struct ufs_dev_info *dev_info = &hba->dev_info; in ufs_put_device_desc()
8545 kfree(dev_info->model); in ufs_put_device_desc()
8546 dev_info->model = NULL; in ufs_put_device_desc()
8550 * ufshcd_quirk_tune_host_pa_tactivate - Ensures that host PA_TACTIVATE is
8552 * @hba: per-adapter instance
8558 * Return: zero on success, non-zero error value on failure.
8580 dev_err(hba->dev, "%s: invalid host PA_GRANULARITY %d", in ufshcd_quirk_tune_host_pa_tactivate()
8582 return -EINVAL; in ufshcd_quirk_tune_host_pa_tactivate()
8587 dev_err(hba->dev, "%s: invalid device PA_GRANULARITY %d", in ufshcd_quirk_tune_host_pa_tactivate()
8589 return -EINVAL; in ufshcd_quirk_tune_host_pa_tactivate()
8601 pa_tactivate_us = pa_tactivate * gran_to_us_table[granularity - 1]; in ufshcd_quirk_tune_host_pa_tactivate()
8603 gran_to_us_table[peer_granularity - 1]; in ufshcd_quirk_tune_host_pa_tactivate()
8609 gran_to_us_table[peer_granularity - 1]; in ufshcd_quirk_tune_host_pa_tactivate()
8620 * ufshcd_quirk_override_pa_h8time - Ensures proper adjustment of PA_HIBERN8TIME.
8621 * @hba: per-adapter instance
8634 dev_err(hba->dev, "Failed to get PA_HIBERN8TIME: %d\n", ret); in ufshcd_quirk_override_pa_h8time()
8641 dev_err(hba->dev, "Failed updating PA_HIBERN8TIME: %d\n", ret); in ufshcd_quirk_override_pa_h8time()
8648 if (hba->dev_quirks & UFS_DEVICE_QUIRK_PA_TACTIVATE) in ufshcd_tune_unipro_params()
8652 if (hba->dev_quirks & UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE) in ufshcd_tune_unipro_params()
8655 if (hba->dev_quirks & UFS_DEVICE_QUIRK_PA_HIBER8TIME) in ufshcd_tune_unipro_params()
8661 hba->ufs_stats.hibern8_exit_cnt = 0; in ufshcd_clear_dbg_ufs_stats()
8662 hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); in ufshcd_clear_dbg_ufs_stats()
8663 hba->req_abort_count = 0; in ufshcd_clear_dbg_ufs_stats()
8673 err = -ENOMEM; in ufshcd_device_geo_params_init()
8680 dev_err(hba->dev, "%s: Failed reading Geometry Desc. err = %d\n", in ufshcd_device_geo_params_init()
8686 hba->dev_info.max_lu_supported = 32; in ufshcd_device_geo_params_init()
8688 hba->dev_info.max_lu_supported = 8; in ufshcd_device_geo_params_init()
8726 hba->dev_ref_clk_freq = in ufshcd_parse_dev_ref_clk_freq()
8729 if (hba->dev_ref_clk_freq == REF_CLK_FREQ_INVAL) in ufshcd_parse_dev_ref_clk_freq()
8730 dev_err(hba->dev, in ufshcd_parse_dev_ref_clk_freq()
8738 u32 freq = hba->dev_ref_clk_freq; in ufshcd_set_dev_ref_clk()
8744 dev_err(hba->dev, "failed reading bRefClkFreq. err = %d\n", in ufshcd_set_dev_ref_clk()
8756 dev_err(hba->dev, "bRefClkFreq setting to %lu Hz failed\n", in ufshcd_set_dev_ref_clk()
8761 dev_dbg(hba->dev, "bRefClkFreq setting to %lu Hz succeeded\n", in ufshcd_set_dev_ref_clk()
8781 dev_err(hba->dev, "%s: Failed getting device info. err = %d\n", in ufshcd_device_params_init()
8792 hba->dev_info.f_power_on_wp_en = flag; in ufshcd_device_params_init()
8794 /* Probe maximum power mode co-supported by both UFS host and device */ in ufshcd_device_params_init()
8796 dev_err(hba->dev, in ufshcd_device_params_init()
8808 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_set_timestamp_attr()
8811 if (dev_info->wspecversion < 0x400 || in ufshcd_set_timestamp_attr()
8812 hba->dev_quirks & UFS_DEVICE_QUIRK_NO_TIMESTAMP_SUPPORT) in ufshcd_set_timestamp_attr()
8821 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in ufshcd_set_timestamp_attr()
8823 upiu_data = (struct utp_upiu_query_v4_0 *)&request->upiu_req; in ufshcd_set_timestamp_attr()
8825 put_unaligned_be64(ktime_get_real_ns(), &upiu_data->osf3); in ufshcd_set_timestamp_attr()
8830 dev_err(hba->dev, "%s: failed to set timestamp %d\n", in ufshcd_set_timestamp_attr()
8837 * ufshcd_add_lus - probe and add UFS logical units
8838 * @hba: per-adapter instance
8853 memcpy(&hba->clk_scaling.saved_pwr_info, in ufshcd_add_lus()
8854 &hba->pwr_info, in ufshcd_add_lus()
8856 hba->clk_scaling.is_allowed = true; in ufshcd_add_lus()
8862 hba->clk_scaling.is_enabled = true; in ufshcd_add_lus()
8867 * The RTC update code accesses the hba->ufs_device_wlun->sdev_gendev in ufshcd_add_lus()
8871 schedule_delayed_work(&hba->ufs_rtc_update_work, in ufshcd_add_lus()
8875 scsi_scan_host(hba->host); in ufshcd_add_lus()
8881 /* SDB - Single Doorbell */
8887 dmam_free_coherent(hba->dev, ucdl_size, hba->ucdl_base_addr, in ufshcd_release_sdb_queue()
8888 hba->ucdl_dma_addr); in ufshcd_release_sdb_queue()
8891 dmam_free_coherent(hba->dev, utrdl_size, hba->utrdl_base_addr, in ufshcd_release_sdb_queue()
8892 hba->utrdl_dma_addr); in ufshcd_release_sdb_queue()
8894 devm_kfree(hba->dev, hba->lrb); in ufshcd_release_sdb_queue()
8900 int old_nutrs = hba->nutrs; in ufshcd_alloc_mcq()
8906 hba->nutrs = ret; in ufshcd_alloc_mcq()
8915 if (hba->nutrs != old_nutrs) { in ufshcd_alloc_mcq()
8927 hba->host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_alloc_mcq()
8928 hba->reserved_slot = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_alloc_mcq()
8932 hba->nutrs = old_nutrs; in ufshcd_alloc_mcq()
8941 hba->mcq_esi_enabled = !ret; in ufshcd_config_mcq()
8942 dev_info(hba->dev, "ESI %sconfigured\n", ret ? "is not " : ""); in ufshcd_config_mcq()
8945 ufshcd_mcq_config_mac(hba, hba->nutrs); in ufshcd_config_mcq()
8947 …dev_info(hba->dev, "MCQ configured, nr_queues=%d, io_queues=%d, read_queue=%d, poll_queues=%d, que… in ufshcd_config_mcq()
8948 hba->nr_hw_queues, hba->nr_queues[HCTX_TYPE_DEFAULT], in ufshcd_config_mcq()
8949 hba->nr_queues[HCTX_TYPE_READ], hba->nr_queues[HCTX_TYPE_POLL], in ufshcd_config_mcq()
8950 hba->nutrs); in ufshcd_config_mcq()
8965 if (!hba->max_pwr_info.is_valid) in ufshcd_post_device_init()
8972 if (hba->dev_ref_clk_freq != REF_CLK_FREQ_INVAL) in ufshcd_post_device_init()
8975 ret = ufshcd_config_pwr_mode(hba, &hba->max_pwr_info.info); in ufshcd_post_device_init()
8977 dev_err(hba->dev, "%s: Failed setting power mode, err = %d\n", in ufshcd_post_device_init()
8989 WARN_ON_ONCE(!hba->scsi_host_added); in ufshcd_device_init()
8991 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_device_init()
8997 if (hba->quirks & UFSHCD_QUIRK_SKIP_PH_CONFIGURATION) in ufshcd_device_init()
9007 if (hba->mcq_enabled && !init_dev_params) { in ufshcd_device_init()
9031 hba->quirks & UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH) { in ufshcd_device_init()
9041 * ufshcd_probe_hba - probe hba to detect device and initialize it
9042 * @hba: per-adapter instance
9045 * Execute link-startup and verify device initialization
9053 if (!hba->pm_op_in_progress && in ufshcd_probe_hba()
9054 (hba->quirks & UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH)) { in ufshcd_probe_hba()
9061 dev_err(hba->dev, "Host controller enable failed\n"); in ufshcd_probe_hba()
9086 if (hba->ee_usr_mask) in ufshcd_probe_hba()
9094 * ufshcd_async_scan - asynchronous execution for probing hba
9104 down(&hba->host_sem); in ufshcd_async_scan()
9109 up(&hba->host_sem); in ufshcd_async_scan()
9117 pm_runtime_put_sync(hba->dev); in ufshcd_async_scan()
9120 dev_err(hba->dev, "%s failed: %d\n", __func__, ret); in ufshcd_async_scan()
9125 struct ufs_hba *hba = shost_priv(scmd->device->host); in ufshcd_eh_timed_out()
9127 if (!hba->system_suspending) { in ufshcd_eh_timed_out()
9139 dev_info(hba->dev, "%s() finished; outstanding_tasks = %#lx.\n", in ufshcd_eh_timed_out()
9140 __func__, hba->outstanding_tasks); in ufshcd_eh_timed_out()
9142 return scsi_host_busy(hba->host) ? SCSI_EH_RESET_TIMER : SCSI_EH_DONE; in ufshcd_eh_timed_out()
9176 .this_id = -1,
9200 if (!vreg->max_uA) in ufshcd_config_vreg_load()
9203 ret = regulator_set_load(vreg->reg, ua); in ufshcd_config_vreg_load()
9206 __func__, vreg->name, ua, ret); in ufshcd_config_vreg_load()
9215 return ufshcd_config_vreg_load(hba->dev, vreg, UFS_VREG_LPM_LOAD_UA); in ufshcd_config_vreg_lpm()
9224 return ufshcd_config_vreg_load(hba->dev, vreg, vreg->max_uA); in ufshcd_config_vreg_hpm()
9230 if (regulator_count_voltages(vreg->reg) <= 0) in ufshcd_config_vreg()
9233 return ufshcd_config_vreg_load(dev, vreg, on ? vreg->max_uA : 0); in ufshcd_config_vreg()
9240 if (!vreg || vreg->enabled) in ufshcd_enable_vreg()
9245 ret = regulator_enable(vreg->reg); in ufshcd_enable_vreg()
9248 vreg->enabled = true; in ufshcd_enable_vreg()
9251 __func__, vreg->name, ret); in ufshcd_enable_vreg()
9260 if (!vreg || !vreg->enabled || vreg->always_on) in ufshcd_disable_vreg()
9263 ret = regulator_disable(vreg->reg); in ufshcd_disable_vreg()
9268 vreg->enabled = false; in ufshcd_disable_vreg()
9271 __func__, vreg->name, ret); in ufshcd_disable_vreg()
9280 struct device *dev = hba->dev; in ufshcd_setup_vreg()
9281 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_setup_vreg()
9283 ret = ufshcd_toggle_vreg(dev, info->vcc, on); in ufshcd_setup_vreg()
9287 ret = ufshcd_toggle_vreg(dev, info->vccq, on); in ufshcd_setup_vreg()
9291 ret = ufshcd_toggle_vreg(dev, info->vccq2, on); in ufshcd_setup_vreg()
9295 ufshcd_toggle_vreg(dev, info->vccq2, false); in ufshcd_setup_vreg()
9296 ufshcd_toggle_vreg(dev, info->vccq, false); in ufshcd_setup_vreg()
9297 ufshcd_toggle_vreg(dev, info->vcc, false); in ufshcd_setup_vreg()
9304 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_setup_hba_vreg()
9306 return ufshcd_toggle_vreg(hba->dev, info->vdd_hba, on); in ufshcd_setup_hba_vreg()
9316 vreg->reg = devm_regulator_get(dev, vreg->name); in ufshcd_get_vreg()
9317 if (IS_ERR(vreg->reg)) { in ufshcd_get_vreg()
9318 ret = PTR_ERR(vreg->reg); in ufshcd_get_vreg()
9320 __func__, vreg->name, ret); in ufshcd_get_vreg()
9330 struct device *dev = hba->dev; in ufshcd_init_vreg()
9331 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_init_vreg()
9333 ret = ufshcd_get_vreg(dev, info->vcc); in ufshcd_init_vreg()
9337 ret = ufshcd_get_vreg(dev, info->vccq); in ufshcd_init_vreg()
9339 ret = ufshcd_get_vreg(dev, info->vccq2); in ufshcd_init_vreg()
9346 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_init_hba_vreg()
9348 return ufshcd_get_vreg(hba->dev, info->vdd_hba); in ufshcd_init_hba_vreg()
9355 struct list_head *head = &hba->clk_list_head; in ufshcd_setup_clocks()
9367 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_setup_clocks()
9373 clki->keep_link_active) in ufshcd_setup_clocks()
9376 clk_state_changed = on ^ clki->enabled; in ufshcd_setup_clocks()
9377 if (on && !clki->enabled) { in ufshcd_setup_clocks()
9378 ret = clk_prepare_enable(clki->clk); in ufshcd_setup_clocks()
9380 dev_err(hba->dev, "%s: %s prepare enable failed, %d\n", in ufshcd_setup_clocks()
9381 __func__, clki->name, ret); in ufshcd_setup_clocks()
9384 } else if (!on && clki->enabled) { in ufshcd_setup_clocks()
9385 clk_disable_unprepare(clki->clk); in ufshcd_setup_clocks()
9387 clki->enabled = on; in ufshcd_setup_clocks()
9388 dev_dbg(hba->dev, "%s: clk: %s %sabled\n", __func__, in ufshcd_setup_clocks()
9389 clki->name, on ? "en" : "dis"); in ufshcd_setup_clocks()
9402 if (!IS_ERR_OR_NULL(clki->clk) && clki->enabled) in ufshcd_setup_clocks()
9403 clk_disable_unprepare(clki->clk); in ufshcd_setup_clocks()
9405 } else if (!ret && on && hba->clk_gating.is_initialized) { in ufshcd_setup_clocks()
9406 scoped_guard(spinlock_irqsave, &hba->clk_gating.lock) in ufshcd_setup_clocks()
9407 hba->clk_gating.state = CLKS_ON; in ufshcd_setup_clocks()
9409 hba->clk_gating.state); in ufshcd_setup_clocks()
9422 int ret = device_property_read_u32(hba->dev, "ref-clk-freq", &freq); in ufshcd_parse_ref_clk_property()
9425 dev_dbg(hba->dev, "Cannot query 'ref-clk-freq' property = %d", ret); in ufshcd_parse_ref_clk_property()
9436 struct device *dev = hba->dev; in ufshcd_init_clocks()
9437 struct list_head *head = &hba->clk_list_head; in ufshcd_init_clocks()
9443 if (!clki->name) in ufshcd_init_clocks()
9446 clki->clk = devm_clk_get(dev, clki->name); in ufshcd_init_clocks()
9447 if (IS_ERR(clki->clk)) { in ufshcd_init_clocks()
9448 ret = PTR_ERR(clki->clk); in ufshcd_init_clocks()
9450 __func__, clki->name, ret); in ufshcd_init_clocks()
9459 if (!strcmp(clki->name, "ref_clk")) in ufshcd_init_clocks()
9460 ufshcd_parse_dev_ref_clk_freq(hba, clki->clk); in ufshcd_init_clocks()
9462 if (clki->max_freq) { in ufshcd_init_clocks()
9463 ret = clk_set_rate(clki->clk, clki->max_freq); in ufshcd_init_clocks()
9465 dev_err(hba->dev, "%s: %s clk set rate(%dHz) failed, %d\n", in ufshcd_init_clocks()
9466 __func__, clki->name, in ufshcd_init_clocks()
9467 clki->max_freq, ret); in ufshcd_init_clocks()
9470 clki->curr_freq = clki->max_freq; in ufshcd_init_clocks()
9473 clki->name, clk_get_rate(clki->clk)); in ufshcd_init_clocks()
9477 if (hba->use_pm_opp) { in ufshcd_init_clocks()
9480 dev_err(hba->dev, "%s: failed to set OPP: %d", __func__, in ufshcd_init_clocks()
9494 if (!hba->vops) in ufshcd_variant_hba_init()
9499 dev_err_probe(hba->dev, err, in ufshcd_variant_hba_init()
9508 if (!hba->vops) in ufshcd_variant_hba_exit()
9537 if (hba->dev_ref_clk_freq == REF_CLK_FREQ_INVAL) in ufshcd_hba_init()
9538 hba->dev_ref_clk_freq = ufshcd_parse_ref_clk_property(hba); in ufshcd_hba_init()
9559 hba->is_powered = true; in ufshcd_hba_init()
9574 if (hba->is_powered) { in ufshcd_hba_exit()
9578 if (hba->eh_wq) in ufshcd_hba_exit()
9579 destroy_workqueue(hba->eh_wq); in ufshcd_hba_exit()
9585 hba->is_powered = false; in ufshcd_hba_exit()
9617 * ufshcd_set_dev_pwr_mode - sends START STOP UNIT command to set device
9633 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_set_dev_pwr_mode()
9634 sdp = hba->ufs_device_wlun; in ufshcd_set_dev_pwr_mode()
9638 ret = -ENODEV; in ufshcd_set_dev_pwr_mode()
9639 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_set_dev_pwr_mode()
9645 * If scsi commands fail, the scsi mid-layer schedules scsi error- in ufshcd_set_dev_pwr_mode()
9650 hba->host->eh_noresume = 1; in ufshcd_set_dev_pwr_mode()
9665 ret = -EIO; in ufshcd_set_dev_pwr_mode()
9668 hba->curr_dev_pwr_mode = pwr_mode; in ufshcd_set_dev_pwr_mode()
9672 hba->host->eh_noresume = 0; in ufshcd_set_dev_pwr_mode()
9682 if (req_link_state == hba->uic_link_state) in ufshcd_link_state_transition()
9690 dev_err(hba->dev, "%s: hibern8 enter failed %d\n", in ufshcd_link_state_transition()
9701 (!check_for_bkops || !hba->auto_bkops_enabled)) { in ufshcd_link_state_transition()
9714 dev_err(hba->dev, "%s: hibern8 enter failed %d\n", in ufshcd_link_state_transition()
9745 hba->dev_quirks & UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM) in ufshcd_vreg_set_lpm()
9761 * buffer OR if bkops status is urgent for WB, keep Vcc on. in ufshcd_vreg_set_lpm()
9764 !hba->dev_info.is_lu_power_on_wp) { in ufshcd_vreg_set_lpm()
9768 ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, false); in ufshcd_vreg_set_lpm()
9771 ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq); in ufshcd_vreg_set_lpm()
9772 ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq2); in ufshcd_vreg_set_lpm()
9777 * Some UFS devices require delay after VCC power rail is turned-off. in ufshcd_vreg_set_lpm()
9779 if (vcc_off && hba->vreg_info.vcc && in ufshcd_vreg_set_lpm()
9780 hba->dev_quirks & UFS_DEVICE_QUIRK_DELAY_AFTER_LPM) in ufshcd_vreg_set_lpm()
9790 !hba->dev_info.is_lu_power_on_wp) { in ufshcd_vreg_set_hpm()
9794 ret = ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq); in ufshcd_vreg_set_hpm()
9797 ret = ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq2); in ufshcd_vreg_set_hpm()
9801 ret = ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, true); in ufshcd_vreg_set_hpm()
9806 ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq); in ufshcd_vreg_set_hpm()
9808 ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, false); in ufshcd_vreg_set_hpm()
9834 hba->pm_op_in_progress = true; in __ufshcd_wl_suspend()
9837 hba->rpm_lvl : hba->spm_lvl; in __ufshcd_wl_suspend()
9850 hba->clk_gating.is_suspended = true; in __ufshcd_wl_suspend()
9860 if ((req_dev_pwr_mode == hba->curr_dev_pwr_mode) && in __ufshcd_wl_suspend()
9861 (req_link_state == hba->uic_link_state)) in __ufshcd_wl_suspend()
9869 ret = -EBUSY; in __ufshcd_wl_suspend()
9888 ret = -EBUSY; in __ufshcd_wl_suspend()
9900 hba->dev_info.b_rpm_dev_flush_capable = in __ufshcd_wl_suspend()
9901 hba->auto_bkops_enabled || in __ufshcd_wl_suspend()
9908 flush_work(&hba->eeh_work); in __ufshcd_wl_suspend()
9914 if (req_dev_pwr_mode != hba->curr_dev_pwr_mode) { in __ufshcd_wl_suspend()
9919 if (!hba->dev_info.b_rpm_dev_flush_capable) { in __ufshcd_wl_suspend()
9928 ret = -EBUSY; in __ufshcd_wl_suspend()
9948 ret = -EBUSY; in __ufshcd_wl_suspend()
9963 cancel_delayed_work_sync(&hba->ufs_rtc_update_work); in __ufshcd_wl_suspend()
9992 hba->dev_info.b_rpm_dev_flush_capable = false; in __ufshcd_wl_suspend()
9994 if (hba->dev_info.b_rpm_dev_flush_capable) { in __ufshcd_wl_suspend()
9995 schedule_delayed_work(&hba->rpm_dev_flush_recheck_work, in __ufshcd_wl_suspend()
10001 hba->clk_gating.is_suspended = false; in __ufshcd_wl_suspend()
10004 hba->pm_op_in_progress = false; in __ufshcd_wl_suspend()
10012 enum uic_link_state old_link_state = hba->uic_link_state; in __ufshcd_wl_resume()
10014 hba->pm_op_in_progress = true; in __ufshcd_wl_resume()
10033 dev_err(hba->dev, "%s: hibern8 exit failed %d\n", in __ufshcd_wl_resume()
10058 schedule_delayed_work(&hba->ufs_rtc_update_work, in __ufshcd_wl_resume()
10067 * keep auto-bkops enabled or else disable it. in __ufshcd_wl_resume()
10071 if (hba->ee_usr_mask) in __ufshcd_wl_resume()
10077 if (hba->dev_info.b_rpm_dev_flush_capable) { in __ufshcd_wl_resume()
10078 hba->dev_info.b_rpm_dev_flush_capable = false; in __ufshcd_wl_resume()
10079 cancel_delayed_work(&hba->rpm_dev_flush_recheck_work); in __ufshcd_wl_resume()
10094 hba->clk_gating.is_suspended = false; in __ufshcd_wl_resume()
10096 hba->pm_op_in_progress = false; in __ufshcd_wl_resume()
10107 hba = shost_priv(sdev->host); in ufshcd_wl_runtime_suspend()
10111 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_runtime_suspend()
10115 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_runtime_suspend()
10127 hba = shost_priv(sdev->host); in ufshcd_wl_runtime_resume()
10131 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_runtime_resume()
10135 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_runtime_resume()
10149 hba = shost_priv(sdev->host); in ufshcd_wl_suspend()
10150 down(&hba->host_sem); in ufshcd_wl_suspend()
10151 hba->system_suspending = true; in ufshcd_wl_suspend()
10158 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_suspend()
10159 up(&hba->host_sem); in ufshcd_wl_suspend()
10164 hba->is_sys_suspended = true; in ufshcd_wl_suspend()
10167 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_suspend()
10179 hba = shost_priv(sdev->host); in ufshcd_wl_resume()
10186 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_resume()
10190 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_resume()
10192 hba->is_sys_suspended = false; in ufshcd_wl_resume()
10193 hba->system_suspending = false; in ufshcd_wl_resume()
10194 up(&hba->host_sem); in ufshcd_wl_resume()
10200 * ufshcd_suspend - helper function for suspend operations
10204 * and set vreg and hba-vreg in lpm mode.
10212 if (!hba->is_powered) in ufshcd_suspend()
10225 hba->clk_gating.state = CLKS_OFF; in ufshcd_suspend()
10227 hba->clk_gating.state); in ufshcd_suspend()
10239 * ufshcd_resume - helper function for resume operations
10245 * Return: 0 for success and non-zero for failure.
10251 if (!hba->is_powered) in ufshcd_resume()
10280 * ufshcd_system_suspend - system suspend callback
10286 * Return: 0 for success and non-zero for failure.
10294 if (pm_runtime_suspended(hba->dev)) in ufshcd_system_suspend()
10301 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_system_suspend()
10307 * ufshcd_system_resume - system resume callback
10313 * Return: 0 for success and non-zero for failure.
10321 if (pm_runtime_suspended(hba->dev)) in ufshcd_system_resume()
10329 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_system_resume()
10338 * ufshcd_runtime_suspend - runtime suspend callback
10343 * Return: 0 for success and non-zero for failure.
10355 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_runtime_suspend()
10361 * ufshcd_runtime_resume - runtime resume routine
10382 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_runtime_resume()
10391 struct ufs_hba *hba = shost_priv(sdev->host); in ufshcd_wl_shutdown()
10393 down(&hba->host_sem); in ufshcd_wl_shutdown()
10394 hba->shutting_down = true; in ufshcd_wl_shutdown()
10395 up(&hba->host_sem); in ufshcd_wl_shutdown()
10400 shost_for_each_device(sdev, hba->host) { in ufshcd_wl_shutdown()
10401 if (sdev == hba->ufs_device_wlun) in ufshcd_wl_shutdown()
10403 mutex_lock(&sdev->state_mutex); in ufshcd_wl_shutdown()
10405 mutex_unlock(&sdev->state_mutex); in ufshcd_wl_shutdown()
10416 hba->is_powered = false; in ufshcd_wl_shutdown()
10420 * ufshcd_remove - de-allocate SCSI host and host memory space
10426 if (hba->ufs_device_wlun) in ufshcd_remove()
10430 ufs_sysfs_remove_nodes(hba->dev); in ufshcd_remove()
10431 cancel_delayed_work_sync(&hba->ufs_rtc_update_work); in ufshcd_remove()
10432 blk_mq_destroy_queue(hba->tmf_queue); in ufshcd_remove()
10433 blk_put_queue(hba->tmf_queue); in ufshcd_remove()
10434 blk_mq_free_tag_set(&hba->tmf_tag_set); in ufshcd_remove()
10435 if (hba->scsi_host_added) in ufshcd_remove()
10436 scsi_remove_host(hba->host); in ufshcd_remove()
10438 ufshcd_disable_intr(hba, hba->intr_mask); in ufshcd_remove()
10464 ufshcd_writel(hba, lower_32_bits(hba->utrdl_dma_addr), in ufshcd_system_restore()
10466 ufshcd_writel(hba, upper_32_bits(hba->utrdl_dma_addr), in ufshcd_system_restore()
10468 ufshcd_writel(hba, lower_32_bits(hba->utmrdl_dma_addr), in ufshcd_system_restore()
10470 ufshcd_writel(hba, upper_32_bits(hba->utmrdl_dma_addr), in ufshcd_system_restore()
10492 * ufshcd_set_dma_mask - Set dma mask based on the controller
10496 * Return: 0 for success, non-zero for failure.
10500 if (hba->vops && hba->vops->set_dma_mask) in ufshcd_set_dma_mask()
10501 return hba->vops->set_dma_mask(hba); in ufshcd_set_dma_mask()
10502 if (hba->capabilities & MASK_64_ADDRESSING_SUPPORT) { in ufshcd_set_dma_mask()
10503 if (!dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(64))) in ufshcd_set_dma_mask()
10506 return dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(32)); in ufshcd_set_dma_mask()
10510 * ufshcd_devres_release - devres cleanup handler, invoked during release of
10511 * hba->dev
10520 * ufshcd_alloc_host - allocate Host Bus Adapter (HBA)
10524 * Return: 0 on success, non-zero value on failure.
10539 err = -ENODEV; in ufshcd_alloc_host()
10547 err = -ENOMEM; in ufshcd_alloc_host()
10556 host->nr_maps = HCTX_TYPE_POLL + 1; in ufshcd_alloc_host()
10558 hba->host = host; in ufshcd_alloc_host()
10559 hba->dev = dev; in ufshcd_alloc_host()
10560 hba->dev_ref_clk_freq = REF_CLK_FREQ_INVAL; in ufshcd_alloc_host()
10561 hba->nop_out_timeout = NOP_OUT_TIMEOUT; in ufshcd_alloc_host()
10563 INIT_LIST_HEAD(&hba->clk_list_head); in ufshcd_alloc_host()
10564 spin_lock_init(&hba->outstanding_lock); in ufshcd_alloc_host()
10598 dev_err(hba->dev, "MCQ mode is disabled, err=%d\n", in ufshcd_add_scsi_host()
10602 if (!is_mcq_supported(hba) && !hba->lsdb_sup) { in ufshcd_add_scsi_host()
10603 dev_err(hba->dev, in ufshcd_add_scsi_host()
10606 return -EINVAL; in ufshcd_add_scsi_host()
10609 err = scsi_add_host(hba->host, hba->dev); in ufshcd_add_scsi_host()
10611 dev_err(hba->dev, "scsi_add_host failed\n"); in ufshcd_add_scsi_host()
10614 hba->scsi_host_added = true; in ufshcd_add_scsi_host()
10616 hba->tmf_tag_set = (struct blk_mq_tag_set) { in ufshcd_add_scsi_host()
10618 .queue_depth = hba->nutmrs, in ufshcd_add_scsi_host()
10621 err = blk_mq_alloc_tag_set(&hba->tmf_tag_set); in ufshcd_add_scsi_host()
10624 hba->tmf_queue = blk_mq_alloc_queue(&hba->tmf_tag_set, NULL, NULL); in ufshcd_add_scsi_host()
10625 if (IS_ERR(hba->tmf_queue)) { in ufshcd_add_scsi_host()
10626 err = PTR_ERR(hba->tmf_queue); in ufshcd_add_scsi_host()
10629 hba->tmf_rqs = devm_kcalloc(hba->dev, hba->nutmrs, in ufshcd_add_scsi_host()
10630 sizeof(*hba->tmf_rqs), GFP_KERNEL); in ufshcd_add_scsi_host()
10631 if (!hba->tmf_rqs) { in ufshcd_add_scsi_host()
10632 err = -ENOMEM; in ufshcd_add_scsi_host()
10639 blk_mq_destroy_queue(hba->tmf_queue); in ufshcd_add_scsi_host()
10640 blk_put_queue(hba->tmf_queue); in ufshcd_add_scsi_host()
10643 blk_mq_free_tag_set(&hba->tmf_tag_set); in ufshcd_add_scsi_host()
10646 if (hba->scsi_host_added) in ufshcd_add_scsi_host()
10647 scsi_remove_host(hba->host); in ufshcd_add_scsi_host()
10653 * ufshcd_init - Driver initialization routine
10654 * @hba: per-adapter instance
10658 * Return: 0 on success, non-zero value on failure.
10663 struct Scsi_Host *host = hba->host; in ufshcd_init()
10664 struct device *dev = hba->dev; in ufshcd_init()
10674 dev_err(hba->dev, in ufshcd_init()
10676 err = -ENODEV; in ufshcd_init()
10680 hba->mmio_base = mmio_base; in ufshcd_init()
10681 hba->irq = irq; in ufshcd_init()
10682 hba->vps = &ufs_hba_vps; in ufshcd_init()
10688 spin_lock_init(&hba->clk_gating.lock); in ufshcd_init()
10691 mutex_init(&hba->pm_qos_mutex); in ufshcd_init()
10701 hba->rpm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( in ufshcd_init()
10704 hba->spm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( in ufshcd_init()
10708 init_completion(&hba->dev_cmd.complete); in ufshcd_init()
10720 hba->ufs_version = ufshcd_get_ufs_version(hba); in ufshcd_init()
10723 hba->intr_mask = ufshcd_get_intr_mask(hba); in ufshcd_init()
10727 dev_err(hba->dev, "set dma mask failed\n"); in ufshcd_init()
10734 dev_err(hba->dev, "Memory allocation failed\n"); in ufshcd_init()
10741 host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_init()
10742 host->cmd_per_lun = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_init()
10743 host->max_id = UFSHCD_MAX_ID; in ufshcd_init()
10744 host->max_lun = UFS_MAX_LUNS; in ufshcd_init()
10745 host->max_channel = UFSHCD_MAX_CHANNEL; in ufshcd_init()
10746 host->unique_id = host->host_no; in ufshcd_init()
10747 host->max_cmd_len = UFS_CDB_SIZE; in ufshcd_init()
10748 host->queuecommand_may_block = !!(hba->caps & UFSHCD_CAP_CLK_GATING); in ufshcd_init()
10751 if (host->rpm_autosuspend_delay == 0) in ufshcd_init()
10752 host->rpm_autosuspend_delay = RPM_AUTOSUSPEND_DELAY_MS; in ufshcd_init()
10754 hba->max_pwr_info.is_valid = false; in ufshcd_init()
10757 hba->eh_wq = alloc_ordered_workqueue("ufs_eh_wq_%d", WQ_MEM_RECLAIM, in ufshcd_init()
10758 hba->host->host_no); in ufshcd_init()
10759 if (!hba->eh_wq) { in ufshcd_init()
10760 dev_err(hba->dev, "%s: failed to create eh workqueue\n", in ufshcd_init()
10762 err = -ENOMEM; in ufshcd_init()
10765 INIT_WORK(&hba->eh_work, ufshcd_err_handler); in ufshcd_init()
10766 INIT_WORK(&hba->eeh_work, ufshcd_exception_event_handler); in ufshcd_init()
10768 sema_init(&hba->host_sem, 1); in ufshcd_init()
10771 mutex_init(&hba->uic_cmd_mutex); in ufshcd_init()
10774 mutex_init(&hba->dev_cmd.lock); in ufshcd_init()
10777 mutex_init(&hba->ee_ctrl_mutex); in ufshcd_init()
10779 mutex_init(&hba->wb_mutex); in ufshcd_init()
10781 init_rwsem(&hba->clk_scaling_lock); in ufshcd_init()
10805 dev_err(hba->dev, "request irq failed\n"); in ufshcd_init()
10808 hba->is_irq_enabled = true; in ufshcd_init()
10819 dev_err(hba->dev, "Host controller enable failed\n"); in ufshcd_init()
10825 INIT_DELAYED_WORK(&hba->rpm_dev_flush_recheck_work, ufshcd_rpm_dev_flush_recheck_work); in ufshcd_init()
10826 INIT_DELAYED_WORK(&hba->ufs_rtc_update_work, ufshcd_rtc_work); in ufshcd_init()
10828 /* Set the default auto-hiberate idle timer value to 150 ms */ in ufshcd_init()
10829 if (ufshcd_is_auto_hibern8_supported(hba) && !hba->ahit) { in ufshcd_init()
10830 hba->ahit = FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 150) | in ufshcd_init()
10838 * We are assuming that device wasn't put in sleep/power-down in ufshcd_init()
10848 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_init()
10854 if (hba->quirks & UFSHCD_QUIRK_SKIP_PH_CONFIGURATION) in ufshcd_init()
10889 ufs_sysfs_add_nodes(hba->dev); in ufshcd_init()
10896 hba->is_irq_enabled = false; in ufshcd_init()
10907 if (hba->complete_put) { in ufshcd_resume_complete()
10909 hba->complete_put = false; in ufshcd_resume_complete()
10916 struct device *dev = &hba->ufs_device_wlun->sdev_gendev; in ufshcd_rpm_ok_for_spm()
10922 spin_lock_irqsave(&dev->power.lock, flags); in ufshcd_rpm_ok_for_spm()
10923 dev_pwr_mode = ufs_get_pm_lvl_to_dev_pwr_mode(hba->spm_lvl); in ufshcd_rpm_ok_for_spm()
10924 link_state = ufs_get_pm_lvl_to_link_pwr_state(hba->spm_lvl); in ufshcd_rpm_ok_for_spm()
10926 hba->curr_dev_pwr_mode == dev_pwr_mode && in ufshcd_rpm_ok_for_spm()
10927 hba->uic_link_state == link_state && in ufshcd_rpm_ok_for_spm()
10928 !hba->dev_info.b_rpm_dev_flush_capable; in ufshcd_rpm_ok_for_spm()
10929 spin_unlock_irqrestore(&dev->power.lock, flags); in ufshcd_rpm_ok_for_spm()
10940 * SCSI assumes that runtime-pm and system-pm for scsi drivers in __ufshcd_suspend_prepare()
10941 * are same. And it doesn't wake up the device for system-suspend in __ufshcd_suspend_prepare()
10945 if (hba->ufs_device_wlun) { in __ufshcd_suspend_prepare()
10955 if (ret < 0 && ret != -EACCES) { in __ufshcd_suspend_prepare()
10960 hba->complete_put = true; in __ufshcd_suspend_prepare()
10976 struct ufs_hba *hba = shost_priv(sdev->host); in ufshcd_wl_poweroff()
10988 return -ENODEV; in ufshcd_wl_probe()
10990 blk_pm_runtime_init(sdev->request_queue, dev); in ufshcd_wl_probe()
11018 * gcc compilers before version 10 cannot do constant-folding for in ufshcd_check_header_layout()
11019 * sub-byte bitfields. Hence skip the layout checks for gcc 9 and in ufshcd_check_header_layout()
11063 * ufs_dev_wlun_template - describes ufs device wlun
11064 * ufs-device wlun - used to send pm commands
11065 * All luns are consumers of ufs-device wlun.
11069 * With ufs design, SSU should be sent to ufs-device wlun.