Lines Matching +full:regulator +full:- +full:booster
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>
24 #include <linux/regulator/consumer.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"
81 /* maximum number of link-startup retries */
119 return hba->mcq_sup && use_mcq_mode; in is_mcq_supported()
123 …mode, "Control MCQ mode for controllers starting from UFSHCI 4.0. 1 - enable MCQ, 0 - disable MCQ.…
183 return -EINVAL; in ufshcd_dump_regs()
187 return -ENOMEM; in ufshcd_dump_regs()
234 ((h)->eh_flags |= UFSHCD_EH_IN_PROGRESS)
236 ((h)->eh_flags & UFSHCD_EH_IN_PROGRESS)
238 ((h)->eh_flags &= ~UFSHCD_EH_IN_PROGRESS)
284 return hba->outstanding_tasks || hba->active_uic_cmd || in ufshcd_has_pending_tasks()
285 hba->uic_async_done; in ufshcd_has_pending_tasks()
290 return scsi_host_busy(hba->host) || ufshcd_has_pending_tasks(hba); in ufshcd_is_ufs_dev_busy()
351 if (!hba->is_irq_enabled) { in ufshcd_enable_irq()
352 enable_irq(hba->irq); in ufshcd_enable_irq()
353 hba->is_irq_enabled = true; in ufshcd_enable_irq()
360 if (hba->is_irq_enabled) { in ufshcd_disable_irq()
361 disable_irq(hba->irq); in ufshcd_disable_irq()
362 hba->is_irq_enabled = false; in ufshcd_disable_irq()
383 struct utp_upiu_req *rq = hba->lrb[tag].ucd_req_ptr; in ufshcd_add_cmd_upiu_trace()
390 header = &rq->header; in ufshcd_add_cmd_upiu_trace()
392 header = &hba->lrb[tag].ucd_rsp_ptr->header; in ufshcd_add_cmd_upiu_trace()
394 trace_ufshcd_upiu(hba, str_t, header, &rq->sc.cdb, in ufshcd_add_cmd_upiu_trace()
405 trace_ufshcd_upiu(hba, str_t, &rq_rsp->header, in ufshcd_add_query_upiu_trace()
406 &rq_rsp->qr, UFS_TSF_OSF); in ufshcd_add_query_upiu_trace()
412 struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[tag]; in ufshcd_add_tm_upiu_trace()
419 &descp->upiu_req.req_header, in ufshcd_add_tm_upiu_trace()
420 &descp->upiu_req.input_param1, in ufshcd_add_tm_upiu_trace()
424 &descp->upiu_rsp.rsp_header, in ufshcd_add_tm_upiu_trace()
425 &descp->upiu_rsp.output_param1, in ufshcd_add_tm_upiu_trace()
439 cmd = ucmd->command; in ufshcd_add_uic_command_trace()
457 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_add_command_trace()
458 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_add_command_trace()
460 int transfer_len = -1; in ufshcd_add_command_trace()
470 opcode = cmd->cmnd[0]; in ufshcd_add_command_trace()
477 be32_to_cpu(lrbp->ucd_req_ptr->sc.exp_data_transfer_len); in ufshcd_add_command_trace()
480 group_id = lrbp->cmd->cmnd[6]; in ufshcd_add_command_trace()
491 if (hba->mcq_enabled) { in ufshcd_add_command_trace()
494 hwq_id = hwq->id; in ufshcd_add_command_trace()
498 trace_ufshcd_command(cmd->device, hba, str_t, tag, doorbell, hwq_id, in ufshcd_add_command_trace()
505 struct list_head *head = &hba->clk_list_head; in ufshcd_print_clk_freqs()
511 if (!IS_ERR_OR_NULL(clki->clk) && clki->min_freq && in ufshcd_print_clk_freqs()
512 clki->max_freq) in ufshcd_print_clk_freqs()
513 dev_err(hba->dev, "clk: %s, rate: %u\n", in ufshcd_print_clk_freqs()
514 clki->name, clki->curr_freq); in ufshcd_print_clk_freqs()
528 e = &hba->ufs_stats.event[id]; in ufshcd_print_evt()
531 int p = (i + e->pos) % UFS_EVENT_HIST_LENGTH; in ufshcd_print_evt()
533 if (e->tstamp[p] == 0) in ufshcd_print_evt()
535 dev_err(hba->dev, "%s[%d] = 0x%x at %lld us\n", err_name, p, in ufshcd_print_evt()
536 e->val[p], div_u64(e->tstamp[p], 1000)); in ufshcd_print_evt()
541 dev_err(hba->dev, "No record of %s\n", err_name); in ufshcd_print_evt()
543 dev_err(hba->dev, "%s: total cnt=%llu\n", err_name, e->cnt); in ufshcd_print_evt()
579 lrbp = &hba->lrb[tag]; in ufshcd_print_tr()
581 dev_err(hba->dev, "UPIU[%d] - issue time %lld us\n", in ufshcd_print_tr()
582 tag, div_u64(lrbp->issue_time_stamp_local_clock, 1000)); in ufshcd_print_tr()
583 dev_err(hba->dev, "UPIU[%d] - complete time %lld us\n", in ufshcd_print_tr()
584 tag, div_u64(lrbp->compl_time_stamp_local_clock, 1000)); in ufshcd_print_tr()
585 dev_err(hba->dev, in ufshcd_print_tr()
586 "UPIU[%d] - Transfer Request Descriptor phys@0x%llx\n", in ufshcd_print_tr()
587 tag, (u64)lrbp->utrd_dma_addr); in ufshcd_print_tr()
589 ufshcd_hex_dump("UPIU TRD: ", lrbp->utr_descriptor_ptr, in ufshcd_print_tr()
591 dev_err(hba->dev, "UPIU[%d] - Request UPIU phys@0x%llx\n", tag, in ufshcd_print_tr()
592 (u64)lrbp->ucd_req_dma_addr); in ufshcd_print_tr()
593 ufshcd_hex_dump("UPIU REQ: ", lrbp->ucd_req_ptr, in ufshcd_print_tr()
595 dev_err(hba->dev, "UPIU[%d] - Response UPIU phys@0x%llx\n", tag, in ufshcd_print_tr()
596 (u64)lrbp->ucd_rsp_dma_addr); in ufshcd_print_tr()
597 ufshcd_hex_dump("UPIU RSP: ", lrbp->ucd_rsp_ptr, in ufshcd_print_tr()
601 lrbp->utr_descriptor_ptr->prd_table_length); in ufshcd_print_tr()
602 if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) in ufshcd_print_tr()
605 dev_err(hba->dev, in ufshcd_print_tr()
606 "UPIU[%d] - PRDT - %d entries phys@0x%llx\n", in ufshcd_print_tr()
608 (u64)lrbp->ucd_prdt_dma_addr); in ufshcd_print_tr()
611 ufshcd_hex_dump("UPIU PRDT: ", lrbp->ucd_prdt_ptr, in ufshcd_print_tr()
617 struct scsi_device *sdev = req->q->queuedata; in ufshcd_print_tr_iter()
618 struct Scsi_Host *shost = sdev->host; in ufshcd_print_tr_iter()
621 ufshcd_print_tr(hba, req->tag, *(bool *)priv); in ufshcd_print_tr_iter()
627 * ufshcd_print_trs_all - print trs for all started requests.
628 * @hba: per-adapter instance.
633 blk_mq_tagset_busy_iter(&hba->host->tag_set, ufshcd_print_tr_iter, &pr_prdt); in ufshcd_print_trs_all()
640 for_each_set_bit(tag, &bitmap, hba->nutmrs) { in ufshcd_print_tmrs()
641 struct utp_task_req_desc *tmrdp = &hba->utmrdl_base_addr[tag]; in ufshcd_print_tmrs()
643 dev_err(hba->dev, "TM[%d] - Task Management Header\n", tag); in ufshcd_print_tmrs()
650 const struct scsi_device *sdev_ufs = hba->ufs_device_wlun; in ufshcd_print_host_state()
652 dev_err(hba->dev, "UFS Host state=%d\n", hba->ufshcd_state); in ufshcd_print_host_state()
653 dev_err(hba->dev, "%d outstanding reqs, tasks=0x%lx\n", in ufshcd_print_host_state()
654 scsi_host_busy(hba->host), hba->outstanding_tasks); in ufshcd_print_host_state()
655 dev_err(hba->dev, "saved_err=0x%x, saved_uic_err=0x%x\n", in ufshcd_print_host_state()
656 hba->saved_err, hba->saved_uic_err); in ufshcd_print_host_state()
657 dev_err(hba->dev, "Device power mode=%d, UIC link state=%d\n", in ufshcd_print_host_state()
658 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_print_host_state()
659 dev_err(hba->dev, "PM in progress=%d, sys. suspended=%d\n", in ufshcd_print_host_state()
660 hba->pm_op_in_progress, hba->is_sys_suspended); in ufshcd_print_host_state()
661 dev_err(hba->dev, "Auto BKOPS=%d, Host self-block=%d\n", in ufshcd_print_host_state()
662 hba->auto_bkops_enabled, hba->host->host_self_blocked); in ufshcd_print_host_state()
663 dev_err(hba->dev, "Clk gate=%d\n", hba->clk_gating.state); in ufshcd_print_host_state()
664 dev_err(hba->dev, in ufshcd_print_host_state()
666 div_u64(hba->ufs_stats.last_hibern8_exit_tstamp, 1000), in ufshcd_print_host_state()
667 hba->ufs_stats.hibern8_exit_cnt); in ufshcd_print_host_state()
668 dev_err(hba->dev, "error handling flags=0x%x, req. abort count=%d\n", in ufshcd_print_host_state()
669 hba->eh_flags, hba->req_abort_count); in ufshcd_print_host_state()
670 dev_err(hba->dev, "hba->ufs_version=0x%x, Host capabilities=0x%x, caps=0x%x\n", in ufshcd_print_host_state()
671 hba->ufs_version, hba->capabilities, hba->caps); in ufshcd_print_host_state()
672 dev_err(hba->dev, "quirks=0x%x, dev. quirks=0x%x\n", hba->quirks, in ufshcd_print_host_state()
673 hba->dev_quirks); in ufshcd_print_host_state()
675 dev_err(hba->dev, "UFS dev info: %.8s %.16s rev %.4s\n", in ufshcd_print_host_state()
676 sdev_ufs->vendor, sdev_ufs->model, sdev_ufs->rev); in ufshcd_print_host_state()
682 * ufshcd_print_pwr_info - print power params as saved in hba
684 * @hba: per-adapter instance
700 * never-ending cycles of messages written back to storage by user space in ufshcd_print_pwr_info()
703 dev_dbg(hba->dev, "%s:[RX, TX]: gear=[%d, %d], lane[%d, %d], pwr[%s, %s], rate = %d\n", in ufshcd_print_pwr_info()
705 hba->pwr_info.gear_rx, hba->pwr_info.gear_tx, in ufshcd_print_pwr_info()
706 hba->pwr_info.lane_rx, hba->pwr_info.lane_tx, in ufshcd_print_pwr_info()
707 names[hba->pwr_info.pwr_rx], in ufshcd_print_pwr_info()
708 names[hba->pwr_info.pwr_tx], in ufshcd_print_pwr_info()
709 hba->pwr_info.hs_rate); in ufshcd_print_pwr_info()
721 hba->dev_info.wb_enabled = false; in ufshcd_device_reset()
722 hba->dev_info.wb_buf_flush_enabled = false; in ufshcd_device_reset()
724 if (hba->dev_info.rtc_type == UFS_RTC_RELATIVE) in ufshcd_device_reset()
725 hba->dev_info.rtc_time_baseline = 0; in ufshcd_device_reset()
727 if (err != -EOPNOTSUPP) in ufshcd_device_reset()
744 * ufshcd_wait_for_register - wait for register value to change
745 * @hba: per-adapter interface
752 * Return: -ETIMEDOUT on error, zero on success.
767 * ufshcd_get_intr_mask - Get the interrupt bit mask
774 if (hba->ufs_version <= ufshci_version(2, 0)) in ufshcd_get_intr_mask()
781 * ufshcd_get_ufs_version - Get the UFS version supported by the HBA
790 if (hba->quirks & UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION) in ufshcd_get_ufs_version()
807 * ufshcd_is_device_present - Check if any device connected to
819 * ufshcd_get_tr_ocs - Get the UTRD Overall Command Status
831 return le32_to_cpu(cqe->status) & MASK_OCS; in ufshcd_get_tr_ocs()
833 return lrbp->utr_descriptor_ptr->header.ocs & MASK_OCS; in ufshcd_get_tr_ocs()
837 * ufshcd_utrl_clear() - Clear requests from the controller request list.
843 if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR) in ufshcd_utrl_clear()
862 * ufshcd_utmrl_clear - Clear a bit in UTMRLCLR register
868 if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR) in ufshcd_utmrl_clear()
875 * ufshcd_get_lists_status - Check UCRDY, UTRLRDY and UTMRLRDY
886 * ufshcd_get_uic_cmd_result - Get the UIC command result
891 * Return: 0 on success; non-zero value on error.
900 * ufshcd_get_dme_attr_val - Get the value of attribute returned by UIC command
905 * Return: 0 on success; non-zero value on error.
913 * ufshcd_get_req_rsp - returns the TR response transaction type
921 return ucd_rsp_ptr->header.transaction_code; in ufshcd_get_req_rsp()
925 * ufshcd_is_exception_event - Check if the device raised an exception event
935 return ucd_rsp_ptr->header.device_information & 1; in ufshcd_is_exception_event()
939 * ufshcd_reset_intr_aggr - Reset interrupt aggregation values.
951 * ufshcd_config_intr_aggr - Configure interrupt aggregation values.
966 * ufshcd_disable_intr_aggr - Disables interrupt aggregation.
975 * ufshcd_enable_run_stop_reg - Enable run-stop registers,
976 * When run-stop registers are set to 1, it indicates the
989 * ufshcd_hba_start - Start controller initialization sequence
1003 * ufshcd_is_hba_active - Get controller state
1015 * ufshcd_pm_qos_init - initialize PM QoS request
1021 if (hba->pm_qos_enabled) in ufshcd_pm_qos_init()
1024 cpu_latency_qos_add_request(&hba->pm_qos_req, PM_QOS_DEFAULT_VALUE); in ufshcd_pm_qos_init()
1026 if (cpu_latency_qos_request_active(&hba->pm_qos_req)) in ufshcd_pm_qos_init()
1027 hba->pm_qos_enabled = true; in ufshcd_pm_qos_init()
1031 * ufshcd_pm_qos_exit - remove request from PM QoS
1036 if (!hba->pm_qos_enabled) in ufshcd_pm_qos_exit()
1039 cpu_latency_qos_remove_request(&hba->pm_qos_req); in ufshcd_pm_qos_exit()
1040 hba->pm_qos_enabled = false; in ufshcd_pm_qos_exit()
1044 * ufshcd_pm_qos_update - update PM QoS request
1050 if (!hba->pm_qos_enabled) in ufshcd_pm_qos_update()
1053 cpu_latency_qos_update_request(&hba->pm_qos_req, on ? 0 : PM_QOS_DEFAULT_VALUE); in ufshcd_pm_qos_update()
1057 * ufshcd_set_clk_freq - set UFS controller clock frequencies
1067 struct list_head *head = &hba->clk_list_head; in ufshcd_set_clk_freq()
1073 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_set_clk_freq()
1074 if (scale_up && clki->max_freq) { in ufshcd_set_clk_freq()
1075 if (clki->curr_freq == clki->max_freq) in ufshcd_set_clk_freq()
1078 ret = clk_set_rate(clki->clk, clki->max_freq); in ufshcd_set_clk_freq()
1080 dev_err(hba->dev, "%s: %s clk set rate(%dHz) failed, %d\n", in ufshcd_set_clk_freq()
1081 __func__, clki->name, in ufshcd_set_clk_freq()
1082 clki->max_freq, ret); in ufshcd_set_clk_freq()
1086 "scaled up", clki->name, in ufshcd_set_clk_freq()
1087 clki->curr_freq, in ufshcd_set_clk_freq()
1088 clki->max_freq); in ufshcd_set_clk_freq()
1090 clki->curr_freq = clki->max_freq; in ufshcd_set_clk_freq()
1092 } else if (!scale_up && clki->min_freq) { in ufshcd_set_clk_freq()
1093 if (clki->curr_freq == clki->min_freq) in ufshcd_set_clk_freq()
1096 ret = clk_set_rate(clki->clk, clki->min_freq); in ufshcd_set_clk_freq()
1098 dev_err(hba->dev, "%s: %s clk set rate(%dHz) failed, %d\n", in ufshcd_set_clk_freq()
1099 __func__, clki->name, in ufshcd_set_clk_freq()
1100 clki->min_freq, ret); in ufshcd_set_clk_freq()
1104 "scaled down", clki->name, in ufshcd_set_clk_freq()
1105 clki->curr_freq, in ufshcd_set_clk_freq()
1106 clki->min_freq); in ufshcd_set_clk_freq()
1107 clki->curr_freq = clki->min_freq; in ufshcd_set_clk_freq()
1110 dev_dbg(hba->dev, "%s: clk: %s, rate: %lu\n", __func__, in ufshcd_set_clk_freq()
1111 clki->name, clk_get_rate(clki->clk)); in ufshcd_set_clk_freq()
1123 struct list_head *head = &hba->clk_list_head; in ufshcd_opp_config_clks()
1130 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_opp_config_clks()
1137 ret = clk_set_rate(clki->clk, freq); in ufshcd_opp_config_clks()
1140 __func__, clki->name, freq, ret); in ufshcd_opp_config_clks()
1146 clki->name, hba->clk_scaling.target_freq, freq); in ufshcd_opp_config_clks()
1159 opp = dev_pm_opp_find_freq_floor_indexed(hba->dev, in ufshcd_opp_set_rate()
1164 ret = dev_pm_opp_set_opp(hba->dev, opp); in ufshcd_opp_set_rate()
1171 * ufshcd_scale_clks - scale up or scale down UFS controller clocks
1188 if (hba->use_pm_opp) in ufshcd_scale_clks()
1197 if (hba->use_pm_opp) in ufshcd_scale_clks()
1199 hba->devfreq->previous_freq); in ufshcd_scale_clks()
1215 * ufshcd_is_devfreq_scaling_required - check if scaling is required or not
1226 struct list_head *head = &hba->clk_list_head; in ufshcd_is_devfreq_scaling_required()
1231 if (hba->use_pm_opp) in ufshcd_is_devfreq_scaling_required()
1232 return freq != hba->clk_scaling.target_freq; in ufshcd_is_devfreq_scaling_required()
1235 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_is_devfreq_scaling_required()
1236 if (scale_up && clki->max_freq) { in ufshcd_is_devfreq_scaling_required()
1237 if (clki->curr_freq == clki->max_freq) in ufshcd_is_devfreq_scaling_required()
1240 } else if (!scale_up && clki->min_freq) { in ufshcd_is_devfreq_scaling_required()
1241 if (clki->curr_freq == clki->min_freq) in ufshcd_is_devfreq_scaling_required()
1264 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_pending_cmds()
1265 __shost_for_each_device(sdev, hba->host) in ufshcd_pending_cmds()
1266 pending += sbitmap_weight(&sdev->budget_map); in ufshcd_pending_cmds()
1267 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_pending_cmds()
1276 * Return: 0 upon success; -EBUSY upon timeout.
1294 if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) { in ufshcd_wait_for_doorbell_clr()
1295 ret = -EBUSY; in ufshcd_wait_for_doorbell_clr()
1322 dev_err(hba->dev, in ufshcd_wait_for_doorbell_clr()
1325 ret = -EBUSY; in ufshcd_wait_for_doorbell_clr()
1333 * ufshcd_scale_gear - scale up/down UFS gear
1338 * Return: 0 for success; -EBUSY if scaling can't happen at this time;
1339 * non-zero for any other errors.
1347 new_pwr_info = hba->pwr_info; in ufshcd_scale_gear()
1356 memcpy(&new_pwr_info, &hba->clk_scaling.saved_pwr_info, in ufshcd_scale_gear()
1359 memcpy(&new_pwr_info, &hba->pwr_info, in ufshcd_scale_gear()
1362 if (hba->pwr_info.gear_tx > hba->clk_scaling.min_gear || in ufshcd_scale_gear()
1363 hba->pwr_info.gear_rx > hba->clk_scaling.min_gear) { in ufshcd_scale_gear()
1365 memcpy(&hba->clk_scaling.saved_pwr_info, in ufshcd_scale_gear()
1366 &hba->pwr_info, in ufshcd_scale_gear()
1370 new_pwr_info.gear_tx = hba->clk_scaling.min_gear; in ufshcd_scale_gear()
1371 new_pwr_info.gear_rx = hba->clk_scaling.min_gear; in ufshcd_scale_gear()
1379 dev_err(hba->dev, "%s: failed err %d, old gear: (tx %d rx %d), new gear: (tx %d rx %d)", in ufshcd_scale_gear()
1381 hba->pwr_info.gear_tx, hba->pwr_info.gear_rx, in ufshcd_scale_gear()
1391 * Return: 0 upon success; -EBUSY upon timeout.
1400 mutex_lock(&hba->host->scan_mutex); in ufshcd_clock_scaling_prepare()
1401 blk_mq_quiesce_tagset(&hba->host->tag_set); in ufshcd_clock_scaling_prepare()
1402 mutex_lock(&hba->wb_mutex); in ufshcd_clock_scaling_prepare()
1403 down_write(&hba->clk_scaling_lock); in ufshcd_clock_scaling_prepare()
1405 if (!hba->clk_scaling.is_allowed || in ufshcd_clock_scaling_prepare()
1407 ret = -EBUSY; in ufshcd_clock_scaling_prepare()
1408 up_write(&hba->clk_scaling_lock); in ufshcd_clock_scaling_prepare()
1409 mutex_unlock(&hba->wb_mutex); in ufshcd_clock_scaling_prepare()
1410 blk_mq_unquiesce_tagset(&hba->host->tag_set); in ufshcd_clock_scaling_prepare()
1411 mutex_unlock(&hba->host->scan_mutex); in ufshcd_clock_scaling_prepare()
1424 up_write(&hba->clk_scaling_lock); in ufshcd_clock_scaling_unprepare()
1426 /* Enable Write Booster if current gear requires it else disable it */ in ufshcd_clock_scaling_unprepare()
1428 ufshcd_wb_toggle(hba, hba->pwr_info.gear_rx >= hba->clk_scaling.wb_gear); in ufshcd_clock_scaling_unprepare()
1430 mutex_unlock(&hba->wb_mutex); in ufshcd_clock_scaling_unprepare()
1432 blk_mq_unquiesce_tagset(&hba->host->tag_set); in ufshcd_clock_scaling_unprepare()
1433 mutex_unlock(&hba->host->scan_mutex); in ufshcd_clock_scaling_unprepare()
1438 * ufshcd_devfreq_scale - scale up/down UFS clocks and gear
1443 * Return: 0 for success; -EBUSY if scaling can't happen at this time; non-zero
1449 u32 old_gear = hba->pwr_info.gear_rx; in ufshcd_devfreq_scale()
1477 ufshcd_scale_clks(hba, hba->devfreq->previous_freq, in ufshcd_devfreq_scale()
1493 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_clk_scaling_suspend_work()
1495 if (hba->clk_scaling.active_reqs || in ufshcd_clk_scaling_suspend_work()
1496 hba->clk_scaling.is_suspended) in ufshcd_clk_scaling_suspend_work()
1499 hba->clk_scaling.is_suspended = true; in ufshcd_clk_scaling_suspend_work()
1500 hba->clk_scaling.window_start_t = 0; in ufshcd_clk_scaling_suspend_work()
1503 devfreq_suspend_device(hba->devfreq); in ufshcd_clk_scaling_suspend_work()
1511 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_clk_scaling_resume_work()
1513 if (!hba->clk_scaling.is_suspended) in ufshcd_clk_scaling_resume_work()
1515 hba->clk_scaling.is_suspended = false; in ufshcd_clk_scaling_resume_work()
1518 devfreq_resume_device(hba->devfreq); in ufshcd_clk_scaling_resume_work()
1528 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_target()
1532 return -EINVAL; in ufshcd_devfreq_target()
1534 if (hba->use_pm_opp) { in ufshcd_devfreq_target()
1545 clki = list_first_entry(&hba->clk_list_head, struct ufs_clk_info, in ufshcd_devfreq_target()
1547 *freq = (unsigned long) clk_round_rate(clki->clk, *freq); in ufshcd_devfreq_target()
1550 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_devfreq_target()
1556 if (hba->clk_scaling.is_suspended) { in ufshcd_devfreq_target()
1557 dev_warn(hba->dev, "clock scaling is suspended, skip"); in ufshcd_devfreq_target()
1561 if (!hba->clk_scaling.active_reqs) in ufshcd_devfreq_target()
1567 /* Decide based on the target or rounded-off frequency and update */ in ufshcd_devfreq_target()
1568 if (hba->use_pm_opp) in ufshcd_devfreq_target()
1569 scale_up = *freq > hba->clk_scaling.target_freq; in ufshcd_devfreq_target()
1571 scale_up = *freq == clki->max_freq; in ufshcd_devfreq_target()
1573 if (!hba->use_pm_opp && !scale_up) in ufshcd_devfreq_target()
1574 *freq = clki->min_freq; in ufshcd_devfreq_target()
1586 hba->clk_scaling.target_freq = *freq; in ufshcd_devfreq_target()
1594 (!scale_up || hba->clk_scaling.suspend_on_no_request)) in ufshcd_devfreq_target()
1595 queue_work(hba->clk_scaling.workq, in ufshcd_devfreq_target()
1596 &hba->clk_scaling.suspend_work); in ufshcd_devfreq_target()
1605 struct ufs_clk_scaling *scaling = &hba->clk_scaling; in ufshcd_devfreq_get_dev_status()
1609 return -EINVAL; in ufshcd_devfreq_get_dev_status()
1613 guard(spinlock_irqsave)(&hba->clk_scaling.lock); in ufshcd_devfreq_get_dev_status()
1616 if (!scaling->window_start_t) in ufshcd_devfreq_get_dev_status()
1624 if (hba->use_pm_opp) { in ufshcd_devfreq_get_dev_status()
1625 stat->current_frequency = hba->clk_scaling.target_freq; in ufshcd_devfreq_get_dev_status()
1627 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_get_dev_status()
1631 stat->current_frequency = clki->curr_freq; in ufshcd_devfreq_get_dev_status()
1634 if (scaling->is_busy_started) in ufshcd_devfreq_get_dev_status()
1635 scaling->tot_busy_t += ktime_us_delta(curr_t, in ufshcd_devfreq_get_dev_status()
1636 scaling->busy_start_t); in ufshcd_devfreq_get_dev_status()
1637 stat->total_time = ktime_us_delta(curr_t, scaling->window_start_t); in ufshcd_devfreq_get_dev_status()
1638 stat->busy_time = scaling->tot_busy_t; in ufshcd_devfreq_get_dev_status()
1640 scaling->window_start_t = curr_t; in ufshcd_devfreq_get_dev_status()
1641 scaling->tot_busy_t = 0; in ufshcd_devfreq_get_dev_status()
1643 if (scaling->active_reqs) { in ufshcd_devfreq_get_dev_status()
1644 scaling->busy_start_t = curr_t; in ufshcd_devfreq_get_dev_status()
1645 scaling->is_busy_started = true; in ufshcd_devfreq_get_dev_status()
1647 scaling->busy_start_t = 0; in ufshcd_devfreq_get_dev_status()
1648 scaling->is_busy_started = false; in ufshcd_devfreq_get_dev_status()
1656 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_init()
1665 if (!hba->use_pm_opp) { in ufshcd_devfreq_init()
1667 dev_pm_opp_add(hba->dev, clki->min_freq, 0); in ufshcd_devfreq_init()
1668 dev_pm_opp_add(hba->dev, clki->max_freq, 0); in ufshcd_devfreq_init()
1671 ufshcd_vops_config_scaling_param(hba, &hba->vps->devfreq_profile, in ufshcd_devfreq_init()
1672 &hba->vps->ondemand_data); in ufshcd_devfreq_init()
1673 devfreq = devfreq_add_device(hba->dev, in ufshcd_devfreq_init()
1674 &hba->vps->devfreq_profile, in ufshcd_devfreq_init()
1676 &hba->vps->ondemand_data); in ufshcd_devfreq_init()
1679 dev_err(hba->dev, "Unable to register with devfreq %d\n", ret); in ufshcd_devfreq_init()
1681 if (!hba->use_pm_opp) { in ufshcd_devfreq_init()
1682 dev_pm_opp_remove(hba->dev, clki->min_freq); in ufshcd_devfreq_init()
1683 dev_pm_opp_remove(hba->dev, clki->max_freq); in ufshcd_devfreq_init()
1688 hba->devfreq = devfreq; in ufshcd_devfreq_init()
1695 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_remove()
1697 if (!hba->devfreq) in ufshcd_devfreq_remove()
1700 devfreq_remove_device(hba->devfreq); in ufshcd_devfreq_remove()
1701 hba->devfreq = NULL; in ufshcd_devfreq_remove()
1703 if (!hba->use_pm_opp) { in ufshcd_devfreq_remove()
1707 dev_pm_opp_remove(hba->dev, clki->min_freq); in ufshcd_devfreq_remove()
1708 dev_pm_opp_remove(hba->dev, clki->max_freq); in ufshcd_devfreq_remove()
1716 cancel_work_sync(&hba->clk_scaling.suspend_work); in ufshcd_suspend_clkscaling()
1717 cancel_work_sync(&hba->clk_scaling.resume_work); in ufshcd_suspend_clkscaling()
1719 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_suspend_clkscaling()
1721 if (!hba->clk_scaling.is_suspended) { in ufshcd_suspend_clkscaling()
1723 hba->clk_scaling.is_suspended = true; in ufshcd_suspend_clkscaling()
1724 hba->clk_scaling.window_start_t = 0; in ufshcd_suspend_clkscaling()
1729 devfreq_suspend_device(hba->devfreq); in ufshcd_suspend_clkscaling()
1736 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_resume_clkscaling()
1738 if (hba->clk_scaling.is_suspended) { in ufshcd_resume_clkscaling()
1740 hba->clk_scaling.is_suspended = false; in ufshcd_resume_clkscaling()
1745 devfreq_resume_device(hba->devfreq); in ufshcd_resume_clkscaling()
1753 return sysfs_emit(buf, "%d\n", hba->clk_scaling.is_enabled); in ufshcd_clkscale_enable_show()
1766 return -EINVAL; in ufshcd_clkscale_enable_store()
1768 down(&hba->host_sem); in ufshcd_clkscale_enable_store()
1770 err = -EBUSY; in ufshcd_clkscale_enable_store()
1775 if (value == hba->clk_scaling.is_enabled) in ufshcd_clkscale_enable_store()
1781 hba->clk_scaling.is_enabled = value; in ufshcd_clkscale_enable_store()
1788 clki = list_first_entry(&hba->clk_list_head, struct ufs_clk_info, list); in ufshcd_clkscale_enable_store()
1789 freq = clki->max_freq; in ufshcd_clkscale_enable_store()
1798 dev_err(hba->dev, "%s: failed to scale clocks up %d\n", in ufshcd_clkscale_enable_store()
1801 hba->clk_scaling.target_freq = freq; in ufshcd_clkscale_enable_store()
1807 up(&hba->host_sem); in ufshcd_clkscale_enable_store()
1813 hba->clk_scaling.enable_attr.show = ufshcd_clkscale_enable_show; in ufshcd_init_clk_scaling_sysfs()
1814 hba->clk_scaling.enable_attr.store = ufshcd_clkscale_enable_store; in ufshcd_init_clk_scaling_sysfs()
1815 sysfs_attr_init(&hba->clk_scaling.enable_attr.attr); in ufshcd_init_clk_scaling_sysfs()
1816 hba->clk_scaling.enable_attr.attr.name = "clkscale_enable"; in ufshcd_init_clk_scaling_sysfs()
1817 hba->clk_scaling.enable_attr.attr.mode = 0644; in ufshcd_init_clk_scaling_sysfs()
1818 if (device_create_file(hba->dev, &hba->clk_scaling.enable_attr)) in ufshcd_init_clk_scaling_sysfs()
1819 dev_err(hba->dev, "Failed to create sysfs for clkscale_enable\n"); in ufshcd_init_clk_scaling_sysfs()
1824 if (hba->clk_scaling.enable_attr.attr.name) in ufshcd_remove_clk_scaling_sysfs()
1825 device_remove_file(hba->dev, &hba->clk_scaling.enable_attr); in ufshcd_remove_clk_scaling_sysfs()
1833 if (!hba->clk_scaling.min_gear) in ufshcd_init_clk_scaling()
1834 hba->clk_scaling.min_gear = UFS_HS_G1; in ufshcd_init_clk_scaling()
1836 if (!hba->clk_scaling.wb_gear) in ufshcd_init_clk_scaling()
1838 hba->clk_scaling.wb_gear = UFS_HS_G3; in ufshcd_init_clk_scaling()
1840 INIT_WORK(&hba->clk_scaling.suspend_work, in ufshcd_init_clk_scaling()
1842 INIT_WORK(&hba->clk_scaling.resume_work, in ufshcd_init_clk_scaling()
1845 spin_lock_init(&hba->clk_scaling.lock); in ufshcd_init_clk_scaling()
1847 hba->clk_scaling.workq = alloc_ordered_workqueue( in ufshcd_init_clk_scaling()
1848 "ufs_clkscaling_%d", WQ_MEM_RECLAIM, hba->host->host_no); in ufshcd_init_clk_scaling()
1850 hba->clk_scaling.is_initialized = true; in ufshcd_init_clk_scaling()
1855 if (!hba->clk_scaling.is_initialized) in ufshcd_exit_clk_scaling()
1859 destroy_workqueue(hba->clk_scaling.workq); in ufshcd_exit_clk_scaling()
1861 hba->clk_scaling.is_initialized = false; in ufshcd_exit_clk_scaling()
1870 cancel_delayed_work_sync(&hba->clk_gating.gate_work); in ufshcd_ungate_work()
1872 scoped_guard(spinlock_irqsave, &hba->clk_gating.lock) { in ufshcd_ungate_work()
1873 if (hba->clk_gating.state == CLKS_ON) in ufshcd_ungate_work()
1885 hba->clk_gating.is_suspended = true; in ufshcd_ungate_work()
1889 dev_err(hba->dev, "%s: hibern8 exit failed %d\n", in ufshcd_ungate_work()
1894 hba->clk_gating.is_suspended = false; in ufshcd_ungate_work()
1899 * ufshcd_hold - Enable clocks that were gated earlier due to ufshcd_release.
1909 !hba->clk_gating.is_initialized) in ufshcd_hold()
1911 spin_lock_irqsave(&hba->clk_gating.lock, flags); in ufshcd_hold()
1912 hba->clk_gating.active_reqs++; in ufshcd_hold()
1915 switch (hba->clk_gating.state) { in ufshcd_hold()
1927 spin_unlock_irqrestore(&hba->clk_gating.lock, flags); in ufshcd_hold()
1928 flush_result = flush_work(&hba->clk_gating.ungate_work); in ufshcd_hold()
1929 if (hba->clk_gating.is_suspended && !flush_result) in ufshcd_hold()
1931 spin_lock_irqsave(&hba->clk_gating.lock, flags); in ufshcd_hold()
1936 if (cancel_delayed_work(&hba->clk_gating.gate_work)) { in ufshcd_hold()
1937 hba->clk_gating.state = CLKS_ON; in ufshcd_hold()
1939 hba->clk_gating.state); in ufshcd_hold()
1949 hba->clk_gating.state = REQ_CLKS_ON; in ufshcd_hold()
1951 hba->clk_gating.state); in ufshcd_hold()
1952 queue_work(hba->clk_gating.clk_gating_workq, in ufshcd_hold()
1953 &hba->clk_gating.ungate_work); in ufshcd_hold()
1960 spin_unlock_irqrestore(&hba->clk_gating.lock, flags); in ufshcd_hold()
1961 flush_work(&hba->clk_gating.ungate_work); in ufshcd_hold()
1963 spin_lock_irqsave(&hba->clk_gating.lock, flags); in ufshcd_hold()
1966 dev_err(hba->dev, "%s: clk gating is in invalid state %d\n", in ufshcd_hold()
1967 __func__, hba->clk_gating.state); in ufshcd_hold()
1970 spin_unlock_irqrestore(&hba->clk_gating.lock, flags); in ufshcd_hold()
1980 scoped_guard(spinlock_irqsave, &hba->clk_gating.lock) { in ufshcd_gate_work()
1987 if (hba->clk_gating.is_suspended || in ufshcd_gate_work()
1988 hba->clk_gating.state != REQ_CLKS_OFF) { in ufshcd_gate_work()
1989 hba->clk_gating.state = CLKS_ON; in ufshcd_gate_work()
1991 hba->clk_gating.state); in ufshcd_gate_work()
1995 if (hba->clk_gating.active_reqs) in ufshcd_gate_work()
1999 scoped_guard(spinlock_irqsave, hba->host->host_lock) { in ufshcd_gate_work()
2001 hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) in ufshcd_gate_work()
2009 hba->clk_gating.state = CLKS_ON; in ufshcd_gate_work()
2010 dev_err(hba->dev, "%s: hibern8 enter failed %d\n", in ufshcd_gate_work()
2013 hba->clk_gating.state); in ufshcd_gate_work()
2034 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_gate_work()
2035 if (hba->clk_gating.state == REQ_CLKS_OFF) { in ufshcd_gate_work()
2036 hba->clk_gating.state = CLKS_OFF; in ufshcd_gate_work()
2038 hba->clk_gating.state); in ufshcd_gate_work()
2044 lockdep_assert_held(&hba->clk_gating.lock); in __ufshcd_release()
2049 hba->clk_gating.active_reqs--; in __ufshcd_release()
2051 if (hba->clk_gating.active_reqs || hba->clk_gating.is_suspended || in __ufshcd_release()
2052 !hba->clk_gating.is_initialized || in __ufshcd_release()
2053 hba->clk_gating.state == CLKS_OFF) in __ufshcd_release()
2056 scoped_guard(spinlock_irqsave, hba->host->host_lock) { in __ufshcd_release()
2058 hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) in __ufshcd_release()
2062 hba->clk_gating.state = REQ_CLKS_OFF; in __ufshcd_release()
2063 trace_ufshcd_clk_gating(hba, hba->clk_gating.state); in __ufshcd_release()
2064 queue_delayed_work(hba->clk_gating.clk_gating_workq, in __ufshcd_release()
2065 &hba->clk_gating.gate_work, in __ufshcd_release()
2066 msecs_to_jiffies(hba->clk_gating.delay_ms)); in __ufshcd_release()
2071 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_release()
2081 return sysfs_emit(buf, "%lu\n", hba->clk_gating.delay_ms); in ufshcd_clkgate_delay_show()
2088 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_clkgate_delay_set()
2089 hba->clk_gating.delay_ms = value; in ufshcd_clkgate_delay_set()
2099 return -EINVAL; in ufshcd_clkgate_delay_store()
2110 return sysfs_emit(buf, "%d\n", hba->clk_gating.is_enabled); in ufshcd_clkgate_enable_show()
2120 return -EINVAL; in ufshcd_clkgate_enable_store()
2124 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_clkgate_enable_store()
2126 if (value == hba->clk_gating.is_enabled) in ufshcd_clkgate_enable_store()
2132 hba->clk_gating.active_reqs++; in ufshcd_clkgate_enable_store()
2134 hba->clk_gating.is_enabled = value; in ufshcd_clkgate_enable_store()
2141 hba->clk_gating.delay_attr.show = ufshcd_clkgate_delay_show; in ufshcd_init_clk_gating_sysfs()
2142 hba->clk_gating.delay_attr.store = ufshcd_clkgate_delay_store; in ufshcd_init_clk_gating_sysfs()
2143 sysfs_attr_init(&hba->clk_gating.delay_attr.attr); in ufshcd_init_clk_gating_sysfs()
2144 hba->clk_gating.delay_attr.attr.name = "clkgate_delay_ms"; in ufshcd_init_clk_gating_sysfs()
2145 hba->clk_gating.delay_attr.attr.mode = 0644; in ufshcd_init_clk_gating_sysfs()
2146 if (device_create_file(hba->dev, &hba->clk_gating.delay_attr)) in ufshcd_init_clk_gating_sysfs()
2147 dev_err(hba->dev, "Failed to create sysfs for clkgate_delay\n"); in ufshcd_init_clk_gating_sysfs()
2149 hba->clk_gating.enable_attr.show = ufshcd_clkgate_enable_show; in ufshcd_init_clk_gating_sysfs()
2150 hba->clk_gating.enable_attr.store = ufshcd_clkgate_enable_store; in ufshcd_init_clk_gating_sysfs()
2151 sysfs_attr_init(&hba->clk_gating.enable_attr.attr); in ufshcd_init_clk_gating_sysfs()
2152 hba->clk_gating.enable_attr.attr.name = "clkgate_enable"; in ufshcd_init_clk_gating_sysfs()
2153 hba->clk_gating.enable_attr.attr.mode = 0644; in ufshcd_init_clk_gating_sysfs()
2154 if (device_create_file(hba->dev, &hba->clk_gating.enable_attr)) in ufshcd_init_clk_gating_sysfs()
2155 dev_err(hba->dev, "Failed to create sysfs for clkgate_enable\n"); in ufshcd_init_clk_gating_sysfs()
2160 if (hba->clk_gating.delay_attr.attr.name) in ufshcd_remove_clk_gating_sysfs()
2161 device_remove_file(hba->dev, &hba->clk_gating.delay_attr); in ufshcd_remove_clk_gating_sysfs()
2162 if (hba->clk_gating.enable_attr.attr.name) in ufshcd_remove_clk_gating_sysfs()
2163 device_remove_file(hba->dev, &hba->clk_gating.enable_attr); in ufshcd_remove_clk_gating_sysfs()
2171 hba->clk_gating.state = CLKS_ON; in ufshcd_init_clk_gating()
2173 hba->clk_gating.delay_ms = 150; in ufshcd_init_clk_gating()
2174 INIT_DELAYED_WORK(&hba->clk_gating.gate_work, ufshcd_gate_work); in ufshcd_init_clk_gating()
2175 INIT_WORK(&hba->clk_gating.ungate_work, ufshcd_ungate_work); in ufshcd_init_clk_gating()
2177 hba->clk_gating.clk_gating_workq = alloc_ordered_workqueue( in ufshcd_init_clk_gating()
2179 hba->host->host_no); in ufshcd_init_clk_gating()
2183 hba->clk_gating.is_enabled = true; in ufshcd_init_clk_gating()
2184 hba->clk_gating.is_initialized = true; in ufshcd_init_clk_gating()
2189 if (!hba->clk_gating.is_initialized) in ufshcd_exit_clk_gating()
2196 hba->clk_gating.is_initialized = false; in ufshcd_exit_clk_gating()
2199 destroy_workqueue(hba->clk_gating.clk_gating_workq); in ufshcd_exit_clk_gating()
2210 guard(spinlock_irqsave)(&hba->clk_scaling.lock); in ufshcd_clk_scaling_start_busy()
2212 if (!hba->clk_scaling.active_reqs++) in ufshcd_clk_scaling_start_busy()
2215 if (!hba->clk_scaling.is_enabled || hba->pm_op_in_progress) in ufshcd_clk_scaling_start_busy()
2219 queue_work(hba->clk_scaling.workq, in ufshcd_clk_scaling_start_busy()
2220 &hba->clk_scaling.resume_work); in ufshcd_clk_scaling_start_busy()
2222 if (!hba->clk_scaling.window_start_t) { in ufshcd_clk_scaling_start_busy()
2223 hba->clk_scaling.window_start_t = curr_t; in ufshcd_clk_scaling_start_busy()
2224 hba->clk_scaling.tot_busy_t = 0; in ufshcd_clk_scaling_start_busy()
2225 hba->clk_scaling.is_busy_started = false; in ufshcd_clk_scaling_start_busy()
2228 if (!hba->clk_scaling.is_busy_started) { in ufshcd_clk_scaling_start_busy()
2229 hba->clk_scaling.busy_start_t = curr_t; in ufshcd_clk_scaling_start_busy()
2230 hba->clk_scaling.is_busy_started = true; in ufshcd_clk_scaling_start_busy()
2236 struct ufs_clk_scaling *scaling = &hba->clk_scaling; in ufshcd_clk_scaling_update_busy()
2241 guard(spinlock_irqsave)(&hba->clk_scaling.lock); in ufshcd_clk_scaling_update_busy()
2243 hba->clk_scaling.active_reqs--; in ufshcd_clk_scaling_update_busy()
2244 if (!scaling->active_reqs && scaling->is_busy_started) { in ufshcd_clk_scaling_update_busy()
2245 scaling->tot_busy_t += ktime_to_us(ktime_sub(ktime_get(), in ufshcd_clk_scaling_update_busy()
2246 scaling->busy_start_t)); in ufshcd_clk_scaling_update_busy()
2247 scaling->busy_start_t = 0; in ufshcd_clk_scaling_update_busy()
2248 scaling->is_busy_started = false; in ufshcd_clk_scaling_update_busy()
2259 return -EINVAL; in ufshcd_monitor_opcode2dir()
2265 const struct ufs_hba_monitor *m = &hba->monitor; in ufshcd_should_inform_monitor()
2267 return (m->enabled && lrbp && lrbp->cmd && in ufshcd_should_inform_monitor()
2268 (!m->chunk_size || m->chunk_size == lrbp->cmd->sdb.length) && in ufshcd_should_inform_monitor()
2269 ktime_before(hba->monitor.enabled_ts, lrbp->issue_time_stamp)); in ufshcd_should_inform_monitor()
2275 int dir = ufshcd_monitor_opcode2dir(*lrbp->cmd->cmnd); in ufshcd_start_monitor()
2278 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_start_monitor()
2279 if (dir >= 0 && hba->monitor.nr_queued[dir]++ == 0) in ufshcd_start_monitor()
2280 hba->monitor.busy_start_ts[dir] = ktime_get(); in ufshcd_start_monitor()
2281 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_start_monitor()
2286 int dir = ufshcd_monitor_opcode2dir(*lrbp->cmd->cmnd); in ufshcd_update_monitor()
2289 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_update_monitor()
2290 if (dir >= 0 && hba->monitor.nr_queued[dir] > 0) { in ufshcd_update_monitor()
2291 const struct request *req = scsi_cmd_to_rq(lrbp->cmd); in ufshcd_update_monitor()
2292 struct ufs_hba_monitor *m = &hba->monitor; in ufshcd_update_monitor()
2295 now = lrbp->compl_time_stamp; in ufshcd_update_monitor()
2296 inc = ktime_sub(now, m->busy_start_ts[dir]); in ufshcd_update_monitor()
2297 m->total_busy[dir] = ktime_add(m->total_busy[dir], inc); in ufshcd_update_monitor()
2298 m->nr_sec_rw[dir] += blk_rq_sectors(req); in ufshcd_update_monitor()
2301 m->nr_req[dir]++; in ufshcd_update_monitor()
2302 lat = ktime_sub(now, lrbp->issue_time_stamp); in ufshcd_update_monitor()
2303 m->lat_sum[dir] += lat; in ufshcd_update_monitor()
2304 if (m->lat_max[dir] < lat || !m->lat_max[dir]) in ufshcd_update_monitor()
2305 m->lat_max[dir] = lat; in ufshcd_update_monitor()
2306 if (m->lat_min[dir] > lat || !m->lat_min[dir]) in ufshcd_update_monitor()
2307 m->lat_min[dir] = lat; in ufshcd_update_monitor()
2309 m->nr_queued[dir]--; in ufshcd_update_monitor()
2311 m->busy_start_ts[dir] = now; in ufshcd_update_monitor()
2313 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_update_monitor()
2317 * ufshcd_send_command - Send SCSI or device management commands
2326 struct ufshcd_lrb *lrbp = &hba->lrb[task_tag]; in ufshcd_send_command()
2329 lrbp->issue_time_stamp = ktime_get(); in ufshcd_send_command()
2330 lrbp->issue_time_stamp_local_clock = local_clock(); in ufshcd_send_command()
2331 lrbp->compl_time_stamp = ktime_set(0, 0); in ufshcd_send_command()
2332 lrbp->compl_time_stamp_local_clock = 0; in ufshcd_send_command()
2334 if (lrbp->cmd) in ufshcd_send_command()
2339 if (hba->mcq_enabled) { in ufshcd_send_command()
2341 struct utp_transfer_req_desc *src = lrbp->utr_descriptor_ptr; in ufshcd_send_command()
2344 spin_lock(&hwq->sq_lock); in ufshcd_send_command()
2345 dest = hwq->sqe_base_addr + hwq->sq_tail_slot; in ufshcd_send_command()
2348 spin_unlock(&hwq->sq_lock); in ufshcd_send_command()
2350 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_send_command()
2351 if (hba->vops && hba->vops->setup_xfer_req) in ufshcd_send_command()
2352 hba->vops->setup_xfer_req(hba, lrbp->task_tag, in ufshcd_send_command()
2353 !!lrbp->cmd); in ufshcd_send_command()
2354 __set_bit(lrbp->task_tag, &hba->outstanding_reqs); in ufshcd_send_command()
2355 ufshcd_writel(hba, 1 << lrbp->task_tag, in ufshcd_send_command()
2357 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_send_command()
2362 * ufshcd_copy_sense_data - Copy sense data in case of check condition
2367 u8 *const sense_buffer = lrbp->cmd->sense_buffer; in ufshcd_copy_sense_data()
2371 resp_len = be16_to_cpu(lrbp->ucd_rsp_ptr->header.data_segment_length); in ufshcd_copy_sense_data()
2375 len = be16_to_cpu(lrbp->ucd_rsp_ptr->sr.sense_data_len); in ufshcd_copy_sense_data()
2378 memcpy(sense_buffer, lrbp->ucd_rsp_ptr->sr.sense_data, in ufshcd_copy_sense_data()
2384 * ufshcd_copy_query_response() - Copy the Query Response and the data
2394 struct ufs_query_res *query_res = &hba->dev_cmd.query.response; in ufshcd_copy_query_response()
2396 memcpy(&query_res->upiu_res, &lrbp->ucd_rsp_ptr->qr, QUERY_OSF_SIZE); in ufshcd_copy_query_response()
2399 if (hba->dev_cmd.query.descriptor && in ufshcd_copy_query_response()
2400 lrbp->ucd_rsp_ptr->qr.opcode == UPIU_QUERY_OPCODE_READ_DESC) { in ufshcd_copy_query_response()
2401 u8 *descp = (u8 *)lrbp->ucd_rsp_ptr + in ufshcd_copy_query_response()
2407 resp_len = be16_to_cpu(lrbp->ucd_rsp_ptr->header in ufshcd_copy_query_response()
2410 hba->dev_cmd.query.request.upiu_req.length); in ufshcd_copy_query_response()
2412 memcpy(hba->dev_cmd.query.descriptor, descp, resp_len); in ufshcd_copy_query_response()
2414 dev_warn(hba->dev, in ufshcd_copy_query_response()
2417 return -EINVAL; in ufshcd_copy_query_response()
2425 * ufshcd_hba_capabilities - Read controller capabilities
2434 hba->capabilities = ufshcd_readl(hba, REG_CONTROLLER_CAPABILITIES); in ufshcd_hba_capabilities()
2437 hba->nutrs = (hba->capabilities & MASK_TRANSFER_REQUESTS_SLOTS_SDB) + 1; in ufshcd_hba_capabilities()
2438 hba->nutmrs = in ufshcd_hba_capabilities()
2439 ((hba->capabilities & MASK_TASK_MANAGEMENT_REQUEST_SLOTS) >> 16) + 1; in ufshcd_hba_capabilities()
2440 hba->reserved_slot = hba->nutrs - 1; in ufshcd_hba_capabilities()
2442 hba->nortt = FIELD_GET(MASK_NUMBER_OUTSTANDING_RTT, hba->capabilities) + 1; in ufshcd_hba_capabilities()
2447 dev_err(hba->dev, "crypto setup failed\n"); in ufshcd_hba_capabilities()
2456 hba->mcq_sup = FIELD_GET(MASK_MCQ_SUPPORT, hba->capabilities); in ufshcd_hba_capabilities()
2461 if (!(hba->quirks & UFSHCD_QUIRK_BROKEN_LSDBS_CAP)) in ufshcd_hba_capabilities()
2462 hba->lsdb_sup = !FIELD_GET(MASK_LSDB_SUPPORT, hba->capabilities); in ufshcd_hba_capabilities()
2464 hba->lsdb_sup = true; in ufshcd_hba_capabilities()
2466 hba->mcq_capabilities = ufshcd_readl(hba, REG_MCQCAP); in ufshcd_hba_capabilities()
2472 * ufshcd_ready_for_uic_cmd - Check if controller is ready
2488 * ufshcd_get_upmcrs - Get the power mode change request status
2501 * ufshcd_dispatch_uic_cmd - Dispatch an UIC command to the Unipro layer
2508 lockdep_assert_held(&hba->uic_cmd_mutex); in ufshcd_dispatch_uic_cmd()
2510 WARN_ON(hba->active_uic_cmd); in ufshcd_dispatch_uic_cmd()
2512 hba->active_uic_cmd = uic_cmd; in ufshcd_dispatch_uic_cmd()
2515 ufshcd_writel(hba, uic_cmd->argument1, REG_UIC_COMMAND_ARG_1); in ufshcd_dispatch_uic_cmd()
2516 ufshcd_writel(hba, uic_cmd->argument2, REG_UIC_COMMAND_ARG_2); in ufshcd_dispatch_uic_cmd()
2517 ufshcd_writel(hba, uic_cmd->argument3, REG_UIC_COMMAND_ARG_3); in ufshcd_dispatch_uic_cmd()
2522 ufshcd_writel(hba, uic_cmd->command & COMMAND_OPCODE_MASK, in ufshcd_dispatch_uic_cmd()
2527 * ufshcd_wait_for_uic_cmd - Wait for completion of an UIC command
2539 lockdep_assert_held(&hba->uic_cmd_mutex); in ufshcd_wait_for_uic_cmd()
2541 if (wait_for_completion_timeout(&uic_cmd->done, in ufshcd_wait_for_uic_cmd()
2543 ret = uic_cmd->argument2 & MASK_UIC_COMMAND_RESULT; in ufshcd_wait_for_uic_cmd()
2545 ret = -ETIMEDOUT; in ufshcd_wait_for_uic_cmd()
2546 dev_err(hba->dev, in ufshcd_wait_for_uic_cmd()
2548 uic_cmd->command, uic_cmd->argument3); in ufshcd_wait_for_uic_cmd()
2550 if (!uic_cmd->cmd_active) { in ufshcd_wait_for_uic_cmd()
2551 dev_err(hba->dev, "%s: UIC cmd has been completed, return the result\n", in ufshcd_wait_for_uic_cmd()
2553 ret = uic_cmd->argument2 & MASK_UIC_COMMAND_RESULT; in ufshcd_wait_for_uic_cmd()
2557 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_wait_for_uic_cmd()
2558 hba->active_uic_cmd = NULL; in ufshcd_wait_for_uic_cmd()
2559 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_wait_for_uic_cmd()
2565 * __ufshcd_send_uic_cmd - Send UIC commands and retrieve the result
2574 lockdep_assert_held(&hba->uic_cmd_mutex); in __ufshcd_send_uic_cmd()
2577 dev_err(hba->dev, in __ufshcd_send_uic_cmd()
2579 return -EIO; in __ufshcd_send_uic_cmd()
2582 init_completion(&uic_cmd->done); in __ufshcd_send_uic_cmd()
2584 uic_cmd->cmd_active = 1; in __ufshcd_send_uic_cmd()
2591 * ufshcd_send_uic_cmd - Send UIC commands and retrieve the result
2601 if (hba->quirks & UFSHCD_QUIRK_BROKEN_UIC_CMD) in ufshcd_send_uic_cmd()
2605 mutex_lock(&hba->uic_cmd_mutex); in ufshcd_send_uic_cmd()
2612 mutex_unlock(&hba->uic_cmd_mutex); in ufshcd_send_uic_cmd()
2619 * ufshcd_sgl_to_prdt - SG list to PRTD (Physical Region Description Table, 4DW format)
2620 * @hba: per-adapter instance
2634 if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) in ufshcd_sgl_to_prdt()
2635 lrbp->utr_descriptor_ptr->prd_table_length = in ufshcd_sgl_to_prdt()
2638 lrbp->utr_descriptor_ptr->prd_table_length = cpu_to_le16(sg_entries); in ufshcd_sgl_to_prdt()
2640 prd = lrbp->ucd_prdt_ptr; in ufshcd_sgl_to_prdt()
2654 prd->size = cpu_to_le32(len - 1); in ufshcd_sgl_to_prdt()
2655 prd->addr = cpu_to_le64(sg->dma_address); in ufshcd_sgl_to_prdt()
2656 prd->reserved = 0; in ufshcd_sgl_to_prdt()
2660 lrbp->utr_descriptor_ptr->prd_table_length = 0; in ufshcd_sgl_to_prdt()
2665 * ufshcd_map_sg - Map scatter-gather list to prdt
2669 * Return: 0 in case of success, non-zero value in case of failure.
2673 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_map_sg()
2685 * ufshcd_enable_intr - enable interrupts
2698 * ufshcd_disable_intr - disable interrupts
2711 * ufshcd_prepare_req_desc_hdr - Fill UTP Transfer request descriptor header according to request
2724 struct utp_transfer_req_desc *req_desc = lrbp->utr_descriptor_ptr; in ufshcd_prepare_req_desc_hdr()
2725 struct request_desc_header *h = &req_desc->header; in ufshcd_prepare_req_desc_hdr()
2728 lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; in ufshcd_prepare_req_desc_hdr()
2743 h->command_type = lrbp->command_type; in ufshcd_prepare_req_desc_hdr()
2744 h->data_direction = data_direction; in ufshcd_prepare_req_desc_hdr()
2745 h->ehs_length = ehs_length; in ufshcd_prepare_req_desc_hdr()
2747 if (lrbp->intr_cmd) in ufshcd_prepare_req_desc_hdr()
2748 h->interrupt = 1; in ufshcd_prepare_req_desc_hdr()
2758 h->ocs = OCS_INVALID_COMMAND_STATUS; in ufshcd_prepare_req_desc_hdr()
2760 req_desc->prd_table_length = 0; in ufshcd_prepare_req_desc_hdr()
2764 * ufshcd_prepare_utp_scsi_cmd_upiu() - fills the utp_transfer_req_desc,
2772 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_prepare_utp_scsi_cmd_upiu()
2773 struct utp_upiu_req *ucd_req_ptr = lrbp->ucd_req_ptr; in ufshcd_prepare_utp_scsi_cmd_upiu()
2776 ucd_req_ptr->header = (struct utp_upiu_header){ in ufshcd_prepare_utp_scsi_cmd_upiu()
2779 .lun = lrbp->lun, in ufshcd_prepare_utp_scsi_cmd_upiu()
2780 .task_tag = lrbp->task_tag, in ufshcd_prepare_utp_scsi_cmd_upiu()
2784 WARN_ON_ONCE(ucd_req_ptr->header.task_tag != lrbp->task_tag); in ufshcd_prepare_utp_scsi_cmd_upiu()
2786 ucd_req_ptr->sc.exp_data_transfer_len = cpu_to_be32(cmd->sdb.length); in ufshcd_prepare_utp_scsi_cmd_upiu()
2788 cdb_len = min_t(unsigned short, cmd->cmd_len, UFS_CDB_SIZE); in ufshcd_prepare_utp_scsi_cmd_upiu()
2789 memcpy(ucd_req_ptr->sc.cdb, cmd->cmnd, cdb_len); in ufshcd_prepare_utp_scsi_cmd_upiu()
2791 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_prepare_utp_scsi_cmd_upiu()
2795 * ufshcd_prepare_utp_query_req_upiu() - fill the utp_transfer_req_desc for query request
2803 struct utp_upiu_req *ucd_req_ptr = lrbp->ucd_req_ptr; in ufshcd_prepare_utp_query_req_upiu()
2804 struct ufs_query *query = &hba->dev_cmd.query; in ufshcd_prepare_utp_query_req_upiu()
2805 u16 len = be16_to_cpu(query->request.upiu_req.length); in ufshcd_prepare_utp_query_req_upiu()
2808 ucd_req_ptr->header = (struct utp_upiu_header){ in ufshcd_prepare_utp_query_req_upiu()
2811 .lun = lrbp->lun, in ufshcd_prepare_utp_query_req_upiu()
2812 .task_tag = lrbp->task_tag, in ufshcd_prepare_utp_query_req_upiu()
2813 .query_function = query->request.query_func, in ufshcd_prepare_utp_query_req_upiu()
2816 query->request.upiu_req.opcode == in ufshcd_prepare_utp_query_req_upiu()
2823 memcpy(&ucd_req_ptr->qr, &query->request.upiu_req, in ufshcd_prepare_utp_query_req_upiu()
2827 if (query->request.upiu_req.opcode == UPIU_QUERY_OPCODE_WRITE_DESC) in ufshcd_prepare_utp_query_req_upiu()
2828 memcpy(ucd_req_ptr + 1, query->descriptor, len); in ufshcd_prepare_utp_query_req_upiu()
2833 struct utp_upiu_req *ucd_req_ptr = lrbp->ucd_req_ptr; in ufshcd_prepare_utp_nop_upiu()
2837 ucd_req_ptr->header = (struct utp_upiu_header){ in ufshcd_prepare_utp_nop_upiu()
2839 .task_tag = lrbp->task_tag, in ufshcd_prepare_utp_nop_upiu()
2844 * ufshcd_compose_devman_upiu - UFS Protocol Information Unit(UPIU)
2859 if (hba->dev_cmd.type == DEV_CMD_TYPE_QUERY) in ufshcd_compose_devman_upiu()
2861 else if (hba->dev_cmd.type == DEV_CMD_TYPE_NOP) in ufshcd_compose_devman_upiu()
2864 ret = -EINVAL; in ufshcd_compose_devman_upiu()
2866 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_compose_devman_upiu()
2872 * ufshcd_comp_scsi_upiu - UFS Protocol Information Unit(UPIU)
2879 struct request *rq = scsi_cmd_to_rq(lrbp->cmd); in ufshcd_comp_scsi_upiu()
2883 ufshcd_prepare_req_desc_hdr(hba, lrbp, &upiu_flags, lrbp->cmd->sc_data_direction, 0); in ufshcd_comp_scsi_upiu()
2891 memset(lrbp->ucd_req_ptr, 0, sizeof(*lrbp->ucd_req_ptr)); in __ufshcd_setup_cmd()
2893 lrbp->cmd = cmd; in __ufshcd_setup_cmd()
2894 lrbp->task_tag = tag; in __ufshcd_setup_cmd()
2895 lrbp->lun = lun; in __ufshcd_setup_cmd()
2903 lrbp->intr_cmd = !ufshcd_is_intr_aggr_allowed(hba); in ufshcd_setup_scsi_cmd()
2904 lrbp->req_abort_skip = false; in ufshcd_setup_scsi_cmd()
2910 * ufshcd_upiu_wlun_to_scsi_wlun - maps UPIU W-LUN id to SCSI W-LUN ID
2911 * @upiu_wlun_id: UPIU W-LUN id
2913 * Return: SCSI W-LUN id.
2922 return sdev->lun == in is_device_wlun()
2936 hba->nr_queues[HCTX_TYPE_DEFAULT] = 1; in ufshcd_map_queues()
2937 hba->nr_queues[HCTX_TYPE_READ] = 0; in ufshcd_map_queues()
2938 hba->nr_queues[HCTX_TYPE_POLL] = 1; in ufshcd_map_queues()
2939 hba->nr_hw_queues = 1; in ufshcd_map_queues()
2942 for (i = 0; i < shost->nr_maps; i++) { in ufshcd_map_queues()
2943 struct blk_mq_queue_map *map = &shost->tag_set.map[i]; in ufshcd_map_queues()
2945 map->nr_queues = hba->nr_queues[i]; in ufshcd_map_queues()
2946 if (!map->nr_queues) in ufshcd_map_queues()
2948 map->queue_offset = queue_offset; in ufshcd_map_queues()
2950 map->queue_offset = 0; in ufshcd_map_queues()
2953 queue_offset += map->nr_queues; in ufshcd_map_queues()
2959 struct utp_transfer_cmd_desc *cmd_descp = (void *)hba->ucdl_base_addr + in ufshcd_init_lrb()
2961 struct utp_transfer_req_desc *utrdlp = hba->utrdl_base_addr; in ufshcd_init_lrb()
2962 dma_addr_t cmd_desc_element_addr = hba->ucdl_dma_addr + in ufshcd_init_lrb()
2967 lrb->utr_descriptor_ptr = utrdlp + i; in ufshcd_init_lrb()
2968 lrb->utrd_dma_addr = hba->utrdl_dma_addr + in ufshcd_init_lrb()
2970 lrb->ucd_req_ptr = (struct utp_upiu_req *)cmd_descp->command_upiu; in ufshcd_init_lrb()
2971 lrb->ucd_req_dma_addr = cmd_desc_element_addr; in ufshcd_init_lrb()
2972 lrb->ucd_rsp_ptr = (struct utp_upiu_rsp *)cmd_descp->response_upiu; in ufshcd_init_lrb()
2973 lrb->ucd_rsp_dma_addr = cmd_desc_element_addr + response_offset; in ufshcd_init_lrb()
2974 lrb->ucd_prdt_ptr = (struct ufshcd_sg_entry *)cmd_descp->prd_table; in ufshcd_init_lrb()
2975 lrb->ucd_prdt_dma_addr = cmd_desc_element_addr + prdt_offset; in ufshcd_init_lrb()
2979 * ufshcd_queuecommand - main entry point for SCSI requests
2983 * Return: 0 for success, non-zero in case of failure.
2988 int tag = scsi_cmd_to_rq(cmd)->tag; in ufshcd_queuecommand()
2993 switch (hba->ufshcd_state) { in ufshcd_queuecommand()
2998 * SCSI error handler can call ->queuecommand() while UFS error in ufshcd_queuecommand()
3020 if (hba->pm_op_in_progress) { in ufshcd_queuecommand()
3021 hba->force_reset = true; in ufshcd_queuecommand()
3036 hba->req_abort_count = 0; in ufshcd_queuecommand()
3040 lrbp = &hba->lrb[tag]; in ufshcd_queuecommand()
3042 ufshcd_setup_scsi_cmd(hba, lrbp, cmd, ufshcd_scsi_to_upiu_lun(cmd->device->lun), tag); in ufshcd_queuecommand()
3050 if (hba->mcq_enabled) in ufshcd_queuecommand()
3059 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_queuecommand()
3061 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_queuecommand()
3071 lrbp->intr_cmd = true; /* No interrupt aggregation */ in ufshcd_setup_dev_cmd()
3072 hba->dev_cmd.type = cmd_type; in ufshcd_setup_dev_cmd()
3108 if (hba->mcq_enabled) { in ufshcd_clear_cmd()
3115 dev_err(hba->dev, "%s: failed tag=%d. err=%d\n", in ufshcd_clear_cmd()
3128 * wait for h/w to clear corresponding bit in door-bell. in ufshcd_clear_cmd()
3136 * ufshcd_dev_cmd_completion() - handles device management command responses
3148 hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); in ufshcd_dev_cmd_completion()
3149 resp = ufshcd_get_req_rsp(lrbp->ucd_rsp_ptr); in ufshcd_dev_cmd_completion()
3153 if (hba->dev_cmd.type != DEV_CMD_TYPE_NOP) { in ufshcd_dev_cmd_completion()
3154 err = -EINVAL; in ufshcd_dev_cmd_completion()
3155 dev_err(hba->dev, "%s: unexpected response %x\n", in ufshcd_dev_cmd_completion()
3160 u8 response = lrbp->ucd_rsp_ptr->header.response; in ufshcd_dev_cmd_completion()
3165 err = -EINVAL; in ufshcd_dev_cmd_completion()
3166 dev_err(hba->dev, "%s: unexpected response in Query RSP: %x\n", in ufshcd_dev_cmd_completion()
3173 err = -EPERM; in ufshcd_dev_cmd_completion()
3174 dev_err(hba->dev, "%s: Reject UPIU not fully implemented\n", in ufshcd_dev_cmd_completion()
3178 if (hba->dev_cmd.type != DEV_CMD_TYPE_RPMB) { in ufshcd_dev_cmd_completion()
3179 err = -EINVAL; in ufshcd_dev_cmd_completion()
3180 dev_err(hba->dev, "%s: unexpected response %x\n", __func__, resp); in ufshcd_dev_cmd_completion()
3184 err = -EINVAL; in ufshcd_dev_cmd_completion()
3185 dev_err(hba->dev, "%s: Invalid device management cmd response: %x\n", in ufshcd_dev_cmd_completion()
3206 time_left = wait_for_completion_timeout(&hba->dev_cmd.complete, in ufshcd_wait_for_dev_cmd()
3214 err = -ETIMEDOUT; in ufshcd_wait_for_dev_cmd()
3215 dev_dbg(hba->dev, "%s: dev_cmd request timedout, tag %d\n", in ufshcd_wait_for_dev_cmd()
3216 __func__, lrbp->task_tag); in ufshcd_wait_for_dev_cmd()
3219 if (hba->mcq_enabled) { in ufshcd_wait_for_dev_cmd()
3221 if (ufshcd_clear_cmd(hba, lrbp->task_tag) == 0) in ufshcd_wait_for_dev_cmd()
3222 err = -EAGAIN; in ufshcd_wait_for_dev_cmd()
3227 if (ufshcd_clear_cmd(hba, lrbp->task_tag) == 0) { in ufshcd_wait_for_dev_cmd()
3229 err = -EAGAIN; in ufshcd_wait_for_dev_cmd()
3235 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3236 pending = test_bit(lrbp->task_tag, in ufshcd_wait_for_dev_cmd()
3237 &hba->outstanding_reqs); in ufshcd_wait_for_dev_cmd()
3239 __clear_bit(lrbp->task_tag, in ufshcd_wait_for_dev_cmd()
3240 &hba->outstanding_reqs); in ufshcd_wait_for_dev_cmd()
3241 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3252 dev_err(hba->dev, "%s: failed to clear tag %d\n", in ufshcd_wait_for_dev_cmd()
3253 __func__, lrbp->task_tag); in ufshcd_wait_for_dev_cmd()
3255 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3256 pending = test_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()
3278 mutex_lock(&hba->dev_cmd.lock); in ufshcd_dev_man_lock()
3279 down_read(&hba->clk_scaling_lock); in ufshcd_dev_man_lock()
3284 up_read(&hba->clk_scaling_lock); in ufshcd_dev_man_unlock()
3285 mutex_unlock(&hba->dev_cmd.lock); in ufshcd_dev_man_unlock()
3297 ufshcd_add_query_upiu_trace(hba, UFS_QUERY_SEND, lrbp->ucd_req_ptr); in ufshcd_issue_dev_cmd()
3298 ufshcd_send_command(hba, tag, hba->dev_cmd_queue); in ufshcd_issue_dev_cmd()
3302 (struct utp_upiu_req *)lrbp->ucd_rsp_ptr); in ufshcd_issue_dev_cmd()
3308 * ufshcd_exec_dev_cmd - API for sending device management requests
3316 * it is expected you hold the hba->dev_cmd.lock mutex.
3321 const u32 tag = hba->reserved_slot; in ufshcd_exec_dev_cmd()
3322 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_exec_dev_cmd()
3325 /* Protects use of hba->reserved_slot. */ in ufshcd_exec_dev_cmd()
3326 lockdep_assert_held(&hba->dev_cmd.lock); in ufshcd_exec_dev_cmd()
3336 * ufshcd_init_query() - init the query response and request parameters
3337 * @hba: per-adapter instance
3349 *request = &hba->dev_cmd.query.request; in ufshcd_init_query()
3350 *response = &hba->dev_cmd.query.response; in ufshcd_init_query()
3353 (*request)->upiu_req.opcode = opcode; in ufshcd_init_query()
3354 (*request)->upiu_req.idn = idn; in ufshcd_init_query()
3355 (*request)->upiu_req.index = index; in ufshcd_init_query()
3356 (*request)->upiu_req.selector = selector; in ufshcd_init_query()
3368 dev_dbg(hba->dev, in ufshcd_query_flag_retry()
3376 dev_err(hba->dev, in ufshcd_query_flag_retry()
3384 * ufshcd_query_flag() - API function for sending flag query requests
3385 * @hba: per-adapter instance
3412 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in ufshcd_query_flag()
3415 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in ufshcd_query_flag()
3418 dev_err(hba->dev, "%s: Invalid argument for read request\n", in ufshcd_query_flag()
3420 err = -EINVAL; in ufshcd_query_flag()
3425 dev_err(hba->dev, in ufshcd_query_flag()
3428 err = -EINVAL; in ufshcd_query_flag()
3435 dev_err(hba->dev, in ufshcd_query_flag()
3442 *flag_res = (be32_to_cpu(response->upiu_res.value) & in ufshcd_query_flag()
3452 * ufshcd_query_attr - API function for sending attribute requests
3453 * @hba: per-adapter instance
3472 dev_err(hba->dev, "%s: attribute value required for opcode 0x%x\n", in ufshcd_query_attr()
3474 return -EINVAL; in ufshcd_query_attr()
3484 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in ufshcd_query_attr()
3485 request->upiu_req.value = cpu_to_be32(*attr_val); in ufshcd_query_attr()
3488 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in ufshcd_query_attr()
3491 dev_err(hba->dev, "%s: Expected query attr opcode but got = 0x%.2x\n", in ufshcd_query_attr()
3493 err = -EINVAL; in ufshcd_query_attr()
3500 dev_err(hba->dev, "%s: opcode 0x%.2x for idn %d failed, index %d, err = %d\n", in ufshcd_query_attr()
3505 *attr_val = be32_to_cpu(response->upiu_res.value); in ufshcd_query_attr()
3514 * ufshcd_query_attr_retry() - API function for sending query
3516 * @hba: per-adapter instance
3533 for (retries = QUERY_REQ_RETRIES; retries > 0; retries--) { in ufshcd_query_attr_retry()
3537 dev_dbg(hba->dev, "%s: failed with error %d, retries %d\n", in ufshcd_query_attr_retry()
3544 dev_err(hba->dev, in ufshcd_query_attr_retry()
3565 dev_err(hba->dev, "%s: descriptor buffer required for opcode 0x%x\n", in __ufshcd_query_descriptor()
3567 return -EINVAL; in __ufshcd_query_descriptor()
3571 dev_err(hba->dev, "%s: descriptor buffer size (%d) is out of range\n", in __ufshcd_query_descriptor()
3573 return -EINVAL; in __ufshcd_query_descriptor()
3580 hba->dev_cmd.query.descriptor = desc_buf; in __ufshcd_query_descriptor()
3581 request->upiu_req.length = cpu_to_be16(*buf_len); in __ufshcd_query_descriptor()
3585 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in __ufshcd_query_descriptor()
3588 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in __ufshcd_query_descriptor()
3591 dev_err(hba->dev, in __ufshcd_query_descriptor()
3594 err = -EINVAL; in __ufshcd_query_descriptor()
3601 dev_err(hba->dev, "%s: opcode 0x%.2x for idn %d failed, index %d, err = %d\n", in __ufshcd_query_descriptor()
3606 *buf_len = be16_to_cpu(response->upiu_res.length); in __ufshcd_query_descriptor()
3609 hba->dev_cmd.query.descriptor = NULL; in __ufshcd_query_descriptor()
3616 * ufshcd_query_descriptor_retry - API function for sending descriptor requests
3617 * @hba: per-adapter instance
3639 for (retries = QUERY_REQ_RETRIES; retries > 0; retries--) { in ufshcd_query_descriptor_retry()
3642 if (!err || err == -EINVAL) in ufshcd_query_descriptor_retry()
3651 * ufshcd_read_desc_param - read the specified descriptor parameter
3675 return -EINVAL; in ufshcd_read_desc_param()
3681 return -ENOMEM; in ufshcd_read_desc_param()
3692 …dev_err(hba->dev, "%s: Failed reading descriptor. desc_id %d, desc_index %d, param_offset %d, ret … in ufshcd_read_desc_param()
3701 dev_err(hba->dev, "%s: Invalid offset 0x%x in descriptor IDN 0x%x, length 0x%x\n", in ufshcd_read_desc_param()
3703 ret = -EINVAL; in ufshcd_read_desc_param()
3709 dev_err(hba->dev, "%s: invalid desc_id %d in descriptor header\n", in ufshcd_read_desc_param()
3711 ret = -EINVAL; in ufshcd_read_desc_param()
3718 ret = -EINVAL; in ufshcd_read_desc_param()
3721 min_t(u32, param_size, buff_len - param_offset)); in ufshcd_read_desc_param()
3731 * struct uc_string_id - unicode string
3743 /* replace non-printable or non-ASCII characters with spaces */
3750 * ufshcd_read_string_desc - read string descriptor
3760 * * -ENOMEM: on allocation failure
3761 * * -EINVAL: on a wrong parameter
3771 return -EINVAL; in ufshcd_read_string_desc()
3775 return -ENOMEM; in ufshcd_read_string_desc()
3780 dev_err(hba->dev, "Reading String Desc failed after %d retries. err = %d\n", in ufshcd_read_string_desc()
3786 if (uc_str->len <= QUERY_DESC_HDR_SIZE) { in ufshcd_read_string_desc()
3787 dev_dbg(hba->dev, "String Desc is of zero length\n"); in ufshcd_read_string_desc()
3797 ascii_len = (uc_str->len - QUERY_DESC_HDR_SIZE) / 2 + 1; in ufshcd_read_string_desc()
3800 ret = -ENOMEM; in ufshcd_read_string_desc()
3806 * we need to convert to utf-8 so it can be displayed in ufshcd_read_string_desc()
3808 ret = utf16s_to_utf8s(uc_str->uc, in ufshcd_read_string_desc()
3809 uc_str->len - QUERY_DESC_HDR_SIZE, in ufshcd_read_string_desc()
3810 UTF16_BIG_ENDIAN, str, ascii_len - 1); in ufshcd_read_string_desc()
3812 /* replace non-printable or non-ASCII characters with spaces */ in ufshcd_read_string_desc()
3819 str = kmemdup(uc_str, uc_str->len, GFP_KERNEL); in ufshcd_read_string_desc()
3821 ret = -ENOMEM; in ufshcd_read_string_desc()
3824 ret = uc_str->len; in ufshcd_read_string_desc()
3833 * ufshcd_read_unit_desc_param - read the specified unit descriptor parameter
3852 if (!ufs_is_valid_unit_desc_lun(&hba->dev_info, lun)) in ufshcd_read_unit_desc_param()
3853 return -EOPNOTSUPP; in ufshcd_read_unit_desc_param()
3864 if (hba->dev_info.wspecversion >= 0x300) { in ufshcd_get_ref_clk_gating_wait()
3869 dev_err(hba->dev, "Failed reading bRefClkGatingWait. err = %d, use default %uus\n", in ufshcd_get_ref_clk_gating_wait()
3874 dev_err(hba->dev, "Undefined ref clk gating wait time, use default %uus\n", in ufshcd_get_ref_clk_gating_wait()
3878 hba->dev_info.clk_gating_wait_us = gating_wait; in ufshcd_get_ref_clk_gating_wait()
3885 * ufshcd_memory_alloc - allocate memory for host memory space data structures
3895 * Return: 0 for success, non-zero in case of failure.
3902 ucdl_size = ufshcd_get_ucd_size(hba) * hba->nutrs; in ufshcd_memory_alloc()
3903 hba->ucdl_base_addr = dmam_alloc_coherent(hba->dev, in ufshcd_memory_alloc()
3905 &hba->ucdl_dma_addr, in ufshcd_memory_alloc()
3911 if (!hba->ucdl_base_addr || in ufshcd_memory_alloc()
3912 WARN_ON(hba->ucdl_dma_addr & (128 - 1))) { in ufshcd_memory_alloc()
3913 dev_err(hba->dev, in ufshcd_memory_alloc()
3922 utrdl_size = (sizeof(struct utp_transfer_req_desc) * hba->nutrs); in ufshcd_memory_alloc()
3923 hba->utrdl_base_addr = dmam_alloc_coherent(hba->dev, in ufshcd_memory_alloc()
3925 &hba->utrdl_dma_addr, in ufshcd_memory_alloc()
3927 if (!hba->utrdl_base_addr || in ufshcd_memory_alloc()
3928 WARN_ON(hba->utrdl_dma_addr & (SZ_1K - 1))) { in ufshcd_memory_alloc()
3929 dev_err(hba->dev, in ufshcd_memory_alloc()
3940 if (hba->utmrdl_base_addr) in ufshcd_memory_alloc()
3946 utmrdl_size = sizeof(struct utp_task_req_desc) * hba->nutmrs; in ufshcd_memory_alloc()
3947 hba->utmrdl_base_addr = dmam_alloc_coherent(hba->dev, in ufshcd_memory_alloc()
3949 &hba->utmrdl_dma_addr, in ufshcd_memory_alloc()
3951 if (!hba->utmrdl_base_addr || in ufshcd_memory_alloc()
3952 WARN_ON(hba->utmrdl_dma_addr & (SZ_1K - 1))) { in ufshcd_memory_alloc()
3953 dev_err(hba->dev, in ufshcd_memory_alloc()
3960 hba->lrb = devm_kcalloc(hba->dev, in ufshcd_memory_alloc()
3961 hba->nutrs, sizeof(struct ufshcd_lrb), in ufshcd_memory_alloc()
3963 if (!hba->lrb) { in ufshcd_memory_alloc()
3964 dev_err(hba->dev, "LRB Memory allocation failed\n"); in ufshcd_memory_alloc()
3969 return -ENOMEM; in ufshcd_memory_alloc()
3973 * ufshcd_host_memory_configure - configure local reference block with
3995 utrdlp = hba->utrdl_base_addr; in ufshcd_host_memory_configure()
4003 cmd_desc_dma_addr = hba->ucdl_dma_addr; in ufshcd_host_memory_configure()
4005 for (i = 0; i < hba->nutrs; i++) { in ufshcd_host_memory_configure()
4013 if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) { in ufshcd_host_memory_configure()
4029 ufshcd_init_lrb(hba, &hba->lrb[i], i); in ufshcd_host_memory_configure()
4034 * ufshcd_dme_link_startup - Notify Unipro to perform link startup
4042 * Return: 0 on success, non-zero value on failure.
4053 dev_dbg(hba->dev, in ufshcd_dme_link_startup()
4054 "dme-link-startup: error code %d\n", ret); in ufshcd_dme_link_startup()
4058 * ufshcd_dme_reset - UIC command for DME_RESET
4064 * Return: 0 on success, non-zero value on failure.
4075 dev_err(hba->dev, in ufshcd_dme_reset()
4076 "dme-reset: error code %d\n", ret); in ufshcd_dme_reset()
4099 * ufshcd_dme_enable - UIC command for DME_ENABLE
4104 * Return: 0 on success, non-zero value on failure.
4115 dev_err(hba->dev, in ufshcd_dme_enable()
4116 "dme-enable: error code %d\n", ret); in ufshcd_dme_enable()
4127 if (!(hba->quirks & UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS)) in ufshcd_add_delay_before_dme_cmd()
4134 if (unlikely(!ktime_to_us(hba->last_dme_cmd_tstamp))) { in ufshcd_add_delay_before_dme_cmd()
4140 hba->last_dme_cmd_tstamp)); in ufshcd_add_delay_before_dme_cmd()
4144 MIN_DELAY_BEFORE_DME_CMDS_US - delta; in ufshcd_add_delay_before_dme_cmd()
4155 hba->last_dme_cmd_tstamp = ktime_get(); in ufshcd_add_delay_before_dme_cmd()
4159 * ufshcd_dme_set_attr - UIC command for DME_SET, DME_PEER_SET
4166 * Return: 0 on success, non-zero value on failure.
4178 "dme-set", in ufshcd_dme_set_attr()
4179 "dme-peer-set" in ufshcd_dme_set_attr()
4189 dev_dbg(hba->dev, "%s: attr-id 0x%x val 0x%x error code %d\n", in ufshcd_dme_set_attr()
4191 } while (ret && peer && --retries); in ufshcd_dme_set_attr()
4194 dev_err(hba->dev, "%s: attr-id 0x%x val 0x%x failed %d retries\n", in ufshcd_dme_set_attr()
4196 UFS_UIC_COMMAND_RETRIES - retries); in ufshcd_dme_set_attr()
4203 * ufshcd_dme_get_attr - UIC command for DME_GET, DME_PEER_GET
4209 * Return: 0 on success, non-zero value on failure.
4219 "dme-get", in ufshcd_dme_get_attr()
4220 "dme-peer-get" in ufshcd_dme_get_attr()
4229 if (peer && (hba->quirks & UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE)) { in ufshcd_dme_get_attr()
4230 orig_pwr_info = hba->pwr_info; in ufshcd_dme_get_attr()
4255 dev_dbg(hba->dev, "%s: attr-id 0x%x error code %d\n", in ufshcd_dme_get_attr()
4257 } while (ret && peer && --retries); in ufshcd_dme_get_attr()
4260 dev_err(hba->dev, "%s: attr-id 0x%x failed %d retries\n", in ufshcd_dme_get_attr()
4262 UFS_UIC_COMMAND_RETRIES - retries); in ufshcd_dme_get_attr()
4267 if (peer && (hba->quirks & UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE) in ufshcd_dme_get_attr()
4276 * ufshcd_dme_rmw - get modify set a DME attribute
4300 * ufshcd_uic_pwr_ctrl - executes UIC commands (which affects the link power
4313 * Return: 0 on success, non-zero value on failure.
4323 mutex_lock(&hba->uic_cmd_mutex); in ufshcd_uic_pwr_ctrl()
4326 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4328 ret = -ENOLINK; in ufshcd_uic_pwr_ctrl()
4331 hba->uic_async_done = &uic_async_done; in ufshcd_uic_pwr_ctrl()
4341 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4344 dev_err(hba->dev, in ufshcd_uic_pwr_ctrl()
4346 cmd->command, cmd->argument3, ret); in ufshcd_uic_pwr_ctrl()
4350 if (!wait_for_completion_timeout(hba->uic_async_done, in ufshcd_uic_pwr_ctrl()
4352 dev_err(hba->dev, in ufshcd_uic_pwr_ctrl()
4354 cmd->command, cmd->argument3); in ufshcd_uic_pwr_ctrl()
4356 if (!cmd->cmd_active) { in ufshcd_uic_pwr_ctrl()
4357 dev_err(hba->dev, "%s: Power Mode Change operation has been completed, go check UPMCRS\n", in ufshcd_uic_pwr_ctrl()
4362 ret = -ETIMEDOUT; in ufshcd_uic_pwr_ctrl()
4369 dev_err(hba->dev, in ufshcd_uic_pwr_ctrl()
4371 cmd->command, status); in ufshcd_uic_pwr_ctrl()
4372 ret = (status != PWR_OK) ? status : -1; in ufshcd_uic_pwr_ctrl()
4381 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4382 hba->active_uic_cmd = NULL; in ufshcd_uic_pwr_ctrl()
4383 hba->uic_async_done = NULL; in ufshcd_uic_pwr_ctrl()
4391 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4392 mutex_unlock(&hba->uic_cmd_mutex); in ufshcd_uic_pwr_ctrl()
4398 * ufshcd_send_bsg_uic_cmd - Send UIC commands requested via BSG layer and retrieve the result
4408 if (hba->quirks & UFSHCD_QUIRK_BROKEN_UIC_CMD) in ufshcd_send_bsg_uic_cmd()
4413 if (uic_cmd->argument1 == UIC_ARG_MIB(PA_PWRMODE) && in ufshcd_send_bsg_uic_cmd()
4414 uic_cmd->command == UIC_CMD_DME_SET) { in ufshcd_send_bsg_uic_cmd()
4419 mutex_lock(&hba->uic_cmd_mutex); in ufshcd_send_bsg_uic_cmd()
4426 mutex_unlock(&hba->uic_cmd_mutex); in ufshcd_send_bsg_uic_cmd()
4434 * ufshcd_uic_change_pwr_mode - Perform the UIC power mode chage
4439 * Return: 0 on success, non-zero value on failure.
4450 if (hba->quirks & UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP) { in ufshcd_uic_change_pwr_mode()
4454 dev_err(hba->dev, "%s: failed to enable PA_RXHSUNTERMCAP ret %d\n", in ufshcd_uic_change_pwr_mode()
4474 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_link_recovery()
4475 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_link_recovery()
4477 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_link_recovery()
4484 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_link_recovery()
4486 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_link_recovery()
4488 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_link_recovery()
4491 dev_err(hba->dev, "%s: link recovery failed, err %d", in ufshcd_link_recovery()
4513 dev_err(hba->dev, "%s: hibern8 enter failed. ret = %d\n", in ufshcd_uic_hibern8_enter()
4538 dev_err(hba->dev, "%s: hibern8 exit failed. ret = %d\n", in ufshcd_uic_hibern8_exit()
4543 hba->ufs_stats.last_hibern8_exit_tstamp = local_clock(); in ufshcd_uic_hibern8_exit()
4544 hba->ufs_stats.hibern8_exit_cnt++; in ufshcd_uic_hibern8_exit()
4556 ufshcd_writel(hba, hba->ahit, REG_AUTO_HIBERNATE_IDLE_TIMER); in ufshcd_configure_auto_hibern8()
4561 const u32 cur_ahit = READ_ONCE(hba->ahit); in ufshcd_auto_hibern8_update()
4566 WRITE_ONCE(hba->ahit, ahit); in ufshcd_auto_hibern8_update()
4567 if (!pm_runtime_suspended(&hba->ufs_device_wlun->sdev_gendev)) { in ufshcd_auto_hibern8_update()
4578 * ufshcd_init_pwr_info - setting the POR (power on reset)
4580 * @hba: per-adapter instance
4584 hba->pwr_info.gear_rx = UFS_PWM_G1; in ufshcd_init_pwr_info()
4585 hba->pwr_info.gear_tx = UFS_PWM_G1; in ufshcd_init_pwr_info()
4586 hba->pwr_info.lane_rx = UFS_LANE_1; in ufshcd_init_pwr_info()
4587 hba->pwr_info.lane_tx = UFS_LANE_1; in ufshcd_init_pwr_info()
4588 hba->pwr_info.pwr_rx = SLOWAUTO_MODE; in ufshcd_init_pwr_info()
4589 hba->pwr_info.pwr_tx = SLOWAUTO_MODE; in ufshcd_init_pwr_info()
4590 hba->pwr_info.hs_rate = 0; in ufshcd_init_pwr_info()
4594 * ufshcd_get_max_pwr_mode - reads the max power mode negotiated with device
4595 * @hba: per-adapter instance
4601 struct ufs_pa_layer_attr *pwr_info = &hba->max_pwr_info.info; in ufshcd_get_max_pwr_mode()
4603 if (hba->max_pwr_info.is_valid) in ufshcd_get_max_pwr_mode()
4606 if (hba->quirks & UFSHCD_QUIRK_HIBERN_FASTAUTO) { in ufshcd_get_max_pwr_mode()
4607 pwr_info->pwr_tx = FASTAUTO_MODE; in ufshcd_get_max_pwr_mode()
4608 pwr_info->pwr_rx = FASTAUTO_MODE; in ufshcd_get_max_pwr_mode()
4610 pwr_info->pwr_tx = FAST_MODE; in ufshcd_get_max_pwr_mode()
4611 pwr_info->pwr_rx = FAST_MODE; in ufshcd_get_max_pwr_mode()
4613 pwr_info->hs_rate = PA_HS_MODE_B; in ufshcd_get_max_pwr_mode()
4617 &pwr_info->lane_rx); in ufshcd_get_max_pwr_mode()
4619 &pwr_info->lane_tx); in ufshcd_get_max_pwr_mode()
4621 if (!pwr_info->lane_rx || !pwr_info->lane_tx) { in ufshcd_get_max_pwr_mode()
4622 dev_err(hba->dev, "%s: invalid connected lanes value. rx=%d, tx=%d\n", in ufshcd_get_max_pwr_mode()
4624 pwr_info->lane_rx, in ufshcd_get_max_pwr_mode()
4625 pwr_info->lane_tx); in ufshcd_get_max_pwr_mode()
4626 return -EINVAL; in ufshcd_get_max_pwr_mode()
4629 if (pwr_info->lane_rx != pwr_info->lane_tx) { in ufshcd_get_max_pwr_mode()
4630 dev_err(hba->dev, "%s: asymmetric connected lanes. rx=%d, tx=%d\n", in ufshcd_get_max_pwr_mode()
4632 pwr_info->lane_rx, in ufshcd_get_max_pwr_mode()
4633 pwr_info->lane_tx); in ufshcd_get_max_pwr_mode()
4634 return -EINVAL; in ufshcd_get_max_pwr_mode()
4642 ufshcd_dme_get(hba, UIC_ARG_MIB(PA_MAXRXHSGEAR), &pwr_info->gear_rx); in ufshcd_get_max_pwr_mode()
4643 if (!pwr_info->gear_rx) { in ufshcd_get_max_pwr_mode()
4645 &pwr_info->gear_rx); in ufshcd_get_max_pwr_mode()
4646 if (!pwr_info->gear_rx) { in ufshcd_get_max_pwr_mode()
4647 dev_err(hba->dev, "%s: invalid max pwm rx gear read = %d\n", in ufshcd_get_max_pwr_mode()
4648 __func__, pwr_info->gear_rx); in ufshcd_get_max_pwr_mode()
4649 return -EINVAL; in ufshcd_get_max_pwr_mode()
4651 pwr_info->pwr_rx = SLOW_MODE; in ufshcd_get_max_pwr_mode()
4655 &pwr_info->gear_tx); in ufshcd_get_max_pwr_mode()
4656 if (!pwr_info->gear_tx) { in ufshcd_get_max_pwr_mode()
4658 &pwr_info->gear_tx); in ufshcd_get_max_pwr_mode()
4659 if (!pwr_info->gear_tx) { in ufshcd_get_max_pwr_mode()
4660 dev_err(hba->dev, "%s: invalid max pwm tx gear read = %d\n", in ufshcd_get_max_pwr_mode()
4661 __func__, pwr_info->gear_tx); in ufshcd_get_max_pwr_mode()
4662 return -EINVAL; in ufshcd_get_max_pwr_mode()
4664 pwr_info->pwr_tx = SLOW_MODE; in ufshcd_get_max_pwr_mode()
4667 hba->max_pwr_info.is_valid = true; in ufshcd_get_max_pwr_mode()
4677 if (!hba->force_pmc && in ufshcd_change_power_mode()
4678 pwr_mode->gear_rx == hba->pwr_info.gear_rx && in ufshcd_change_power_mode()
4679 pwr_mode->gear_tx == hba->pwr_info.gear_tx && in ufshcd_change_power_mode()
4680 pwr_mode->lane_rx == hba->pwr_info.lane_rx && in ufshcd_change_power_mode()
4681 pwr_mode->lane_tx == hba->pwr_info.lane_tx && in ufshcd_change_power_mode()
4682 pwr_mode->pwr_rx == hba->pwr_info.pwr_rx && in ufshcd_change_power_mode()
4683 pwr_mode->pwr_tx == hba->pwr_info.pwr_tx && in ufshcd_change_power_mode()
4684 pwr_mode->hs_rate == hba->pwr_info.hs_rate) { in ufshcd_change_power_mode()
4685 dev_dbg(hba->dev, "%s: power already configured\n", __func__); in ufshcd_change_power_mode()
4691 * - PA_RXGEAR, PA_ACTIVERXDATALANES, PA_RXTERMINATION, in ufshcd_change_power_mode()
4692 * - PA_TXGEAR, PA_ACTIVETXDATALANES, PA_TXTERMINATION, in ufshcd_change_power_mode()
4693 * - PA_HSSERIES in ufshcd_change_power_mode()
4695 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_RXGEAR), pwr_mode->gear_rx); in ufshcd_change_power_mode()
4697 pwr_mode->lane_rx); in ufshcd_change_power_mode()
4698 if (pwr_mode->pwr_rx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4699 pwr_mode->pwr_rx == FAST_MODE) in ufshcd_change_power_mode()
4704 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TXGEAR), pwr_mode->gear_tx); in ufshcd_change_power_mode()
4706 pwr_mode->lane_tx); in ufshcd_change_power_mode()
4707 if (pwr_mode->pwr_tx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4708 pwr_mode->pwr_tx == FAST_MODE) in ufshcd_change_power_mode()
4713 if (pwr_mode->pwr_rx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4714 pwr_mode->pwr_tx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4715 pwr_mode->pwr_rx == FAST_MODE || in ufshcd_change_power_mode()
4716 pwr_mode->pwr_tx == FAST_MODE) in ufshcd_change_power_mode()
4718 pwr_mode->hs_rate); in ufshcd_change_power_mode()
4720 if (!(hba->quirks & UFSHCD_QUIRK_SKIP_DEF_UNIPRO_TIMEOUT_SETTING)) { in ufshcd_change_power_mode()
4742 ret = ufshcd_uic_change_pwr_mode(hba, pwr_mode->pwr_rx << 4 in ufshcd_change_power_mode()
4743 | pwr_mode->pwr_tx); in ufshcd_change_power_mode()
4746 dev_err(hba->dev, in ufshcd_change_power_mode()
4749 memcpy(&hba->pwr_info, pwr_mode, in ufshcd_change_power_mode()
4757 * ufshcd_config_pwr_mode - configure a new power mode
4758 * @hba: per-adapter instance
4786 * ufshcd_complete_dev_init() - checks device readiness
4787 * @hba: per-adapter instance
4802 dev_err(hba->dev, in ufshcd_complete_dev_init()
4819 dev_err(hba->dev, in ufshcd_complete_dev_init()
4823 dev_err(hba->dev, in ufshcd_complete_dev_init()
4826 err = -EBUSY; in ufshcd_complete_dev_init()
4833 * ufshcd_make_hba_operational - Make UFS controller operational
4840 * 4. Configure run-stop-registers
4854 ufshcd_config_intr_aggr(hba, hba->nutrs - 1, INT_AGGR_DEF_TO); in ufshcd_make_hba_operational()
4859 ufshcd_writel(hba, lower_32_bits(hba->utrdl_dma_addr), in ufshcd_make_hba_operational()
4861 ufshcd_writel(hba, upper_32_bits(hba->utrdl_dma_addr), in ufshcd_make_hba_operational()
4863 ufshcd_writel(hba, lower_32_bits(hba->utmrdl_dma_addr), in ufshcd_make_hba_operational()
4865 ufshcd_writel(hba, upper_32_bits(hba->utmrdl_dma_addr), in ufshcd_make_hba_operational()
4875 dev_err(hba->dev, in ufshcd_make_hba_operational()
4877 err = -EIO; in ufshcd_make_hba_operational()
4885 * ufshcd_hba_stop - Send controller to reset state
4899 dev_err(hba->dev, "%s: Controller disable failed\n", __func__); in ufshcd_hba_stop()
4904 * ufshcd_hba_execute_hce - initialize the controller
4911 * Return: 0 on success, non-zero value on failure.
4917 for (retry = 3; retry > 0; retry--) { in ufshcd_hba_execute_hce()
4932 * During initialization the HCE bit value changes from 1->0->1. in ufshcd_hba_execute_hce()
4940 ufshcd_delay_us(hba->vps->hba_enable_delay_us, 100); in ufshcd_hba_execute_hce()
4947 dev_err(hba->dev, "Enabling the controller failed\n"); in ufshcd_hba_execute_hce()
4951 return -EIO; in ufshcd_hba_execute_hce()
4965 if (hba->quirks & UFSHCI_QUIRK_BROKEN_HCE) { in ufshcd_hba_enable()
4973 dev_err(hba->dev, "DME_RESET failed\n"); in ufshcd_hba_enable()
4979 dev_err(hba->dev, "Enabling DME failed\n"); in ufshcd_hba_enable()
5014 dev_err(hba->dev, "%s: TX LCC Disable failed, peer = %d, lane = %d, err = %d", in ufshcd_disable_tx_lcc()
5035 e = &hba->ufs_stats.event[id]; in ufshcd_update_evt_hist()
5036 e->val[e->pos] = val; in ufshcd_update_evt_hist()
5037 e->tstamp[e->pos] = local_clock(); in ufshcd_update_evt_hist()
5038 e->cnt += 1; in ufshcd_update_evt_hist()
5039 e->pos = (e->pos + 1) % UFS_EVENT_HIST_LENGTH; in ufshcd_update_evt_hist()
5046 * ufshcd_link_startup - Initialize unipro link startup
5049 * Return: 0 for success, non-zero in case of failure.
5070 /* check if device is detected by inter-connect layer */ in ufshcd_link_startup()
5075 dev_err(hba->dev, "%s: Device not present\n", __func__); in ufshcd_link_startup()
5076 ret = -ENXIO; in ufshcd_link_startup()
5083 * succeeds. So reset the local Uni-Pro and try again. in ufshcd_link_startup()
5091 } while (ret && retries--); in ufshcd_link_startup()
5107 /* Mark that link is up in PWM-G1, 1-lane, SLOW-AUTO mode */ in ufshcd_link_startup()
5111 if (hba->quirks & UFSHCD_QUIRK_BROKEN_LCC) { in ufshcd_link_startup()
5127 dev_err(hba->dev, "link startup failed %d\n", ret); in ufshcd_link_startup()
5136 * ufshcd_verify_dev_init() - Verify device initialization
5137 * @hba: per-adapter instance
5154 for (retries = NOP_OUT_RETRIES; retries > 0; retries--) { in ufshcd_verify_dev_init()
5156 hba->nop_out_timeout); in ufshcd_verify_dev_init()
5158 if (!err || err == -ETIMEDOUT) in ufshcd_verify_dev_init()
5161 dev_dbg(hba->dev, "%s: error %d retrying\n", __func__, err); in ufshcd_verify_dev_init()
5167 dev_err(hba->dev, "%s: NOP OUT failed %d\n", __func__, err); in ufshcd_verify_dev_init()
5172 * ufshcd_setup_links - associate link b/w device wlun and other luns
5184 if (hba->ufs_device_wlun) { in ufshcd_setup_links()
5185 link = device_link_add(&sdev->sdev_gendev, in ufshcd_setup_links()
5186 &hba->ufs_device_wlun->sdev_gendev, in ufshcd_setup_links()
5189 dev_err(&sdev->sdev_gendev, "Failed establishing link - %s\n", in ufshcd_setup_links()
5190 dev_name(&hba->ufs_device_wlun->sdev_gendev)); in ufshcd_setup_links()
5193 hba->luns_avail--; in ufshcd_setup_links()
5195 if (hba->luns_avail == 1) { in ufshcd_setup_links()
5204 hba->luns_avail--; in ufshcd_setup_links()
5209 * ufshcd_lu_init - Initialize the relevant parameters of the LU
5210 * @hba: per-adapter instance
5216 u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun); in ufshcd_lu_init()
5217 u8 lun_qdepth = hba->nutrs; in ufshcd_lu_init()
5227 if (ret == -EOPNOTSUPP) in ufshcd_lu_init()
5236 * In per-LU queueing architecture, bLUQueueDepth will not be 0, then we will in ufshcd_lu_init()
5239 lun_qdepth = min_t(int, desc_buf[UNIT_DESC_PARAM_LU_Q_DEPTH], hba->nutrs); in ufshcd_lu_init()
5245 if (hba->dev_info.f_power_on_wp_en && lun < hba->dev_info.max_lu_supported && in ufshcd_lu_init()
5246 !hba->dev_info.is_lu_power_on_wp && in ufshcd_lu_init()
5248 hba->dev_info.is_lu_power_on_wp = true; in ufshcd_lu_init()
5253 hba->dev_info.b_advanced_rpmb_en = true; in ufshcd_lu_init()
5262 dev_dbg(hba->dev, "Set LU %x queue depth %d\n", lun, lun_qdepth); in ufshcd_lu_init()
5267 * ufshcd_sdev_init - handle initial SCSI device configurations
5276 hba = shost_priv(sdev->host); in ufshcd_sdev_init()
5279 sdev->use_10_for_ms = 1; in ufshcd_sdev_init()
5282 sdev->set_dbd_for_ms = 1; in ufshcd_sdev_init()
5285 sdev->allow_restart = 1; in ufshcd_sdev_init()
5288 sdev->no_report_opcodes = 1; in ufshcd_sdev_init()
5291 sdev->no_write_same = 1; in ufshcd_sdev_init()
5301 * ufshcd_change_queue_depth - change queue depth
5311 return scsi_change_queue_depth(sdev, min(depth, sdev->host->can_queue)); in ufshcd_change_queue_depth()
5315 * ufshcd_sdev_configure - adjust SCSI device configurations
5324 struct ufs_hba *hba = shost_priv(sdev->host); in ufshcd_sdev_configure()
5325 struct request_queue *q = sdev->request_queue; in ufshcd_sdev_configure()
5327 lim->dma_pad_mask = PRDT_DATA_BYTE_COUNT_PAD - 1; in ufshcd_sdev_configure()
5330 * Block runtime-pm until all consumers are added. in ufshcd_sdev_configure()
5334 pm_runtime_get_noresume(&sdev->sdev_gendev); in ufshcd_sdev_configure()
5336 sdev->rpm_autosuspend = 1; in ufshcd_sdev_configure()
5338 * Do not print messages during runtime PM to avoid never-ending cycles in ufshcd_sdev_configure()
5342 sdev->silence_suspend = 1; in ufshcd_sdev_configure()
5344 if (hba->vops && hba->vops->config_scsi_dev) in ufshcd_sdev_configure()
5345 hba->vops->config_scsi_dev(sdev); in ufshcd_sdev_configure()
5353 * ufshcd_sdev_destroy - remove SCSI device configurations
5361 hba = shost_priv(sdev->host); in ufshcd_sdev_destroy()
5364 if (ufshcd_scsi_to_upiu_lun(sdev->lun) == UFS_UPIU_UFS_DEVICE_WLUN) { in ufshcd_sdev_destroy()
5365 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5366 hba->ufs_device_wlun = NULL; in ufshcd_sdev_destroy()
5367 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5368 } else if (hba->ufs_device_wlun) { in ufshcd_sdev_destroy()
5372 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5373 if (hba->ufs_device_wlun) { in ufshcd_sdev_destroy()
5374 supplier = &hba->ufs_device_wlun->sdev_gendev; in ufshcd_sdev_destroy()
5377 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5385 device_link_remove(&sdev->sdev_gendev, supplier); in ufshcd_sdev_destroy()
5392 * ufshcd_scsi_cmd_status - Update SCSI command result based on SCSI status
5425 * ufshcd_transfer_rsp_status - Get overall status of the response
5442 upiu_flags = lrbp->ucd_rsp_ptr->header.flags; in ufshcd_transfer_rsp_status()
5443 resid = be32_to_cpu(lrbp->ucd_rsp_ptr->sr.residual_transfer_count); in ufshcd_transfer_rsp_status()
5449 scsi_set_resid(lrbp->cmd, resid); in ufshcd_transfer_rsp_status()
5454 if (hba->quirks & UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR) { in ufshcd_transfer_rsp_status()
5455 if (lrbp->ucd_rsp_ptr->header.response || in ufshcd_transfer_rsp_status()
5456 lrbp->ucd_rsp_ptr->header.status) in ufshcd_transfer_rsp_status()
5462 hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); in ufshcd_transfer_rsp_status()
5463 switch (ufshcd_get_req_rsp(lrbp->ucd_rsp_ptr)) { in ufshcd_transfer_rsp_status()
5469 scsi_status = lrbp->ucd_rsp_ptr->header.status; in ufshcd_transfer_rsp_status()
5484 if (!hba->pm_op_in_progress && in ufshcd_transfer_rsp_status()
5486 ufshcd_is_exception_event(lrbp->ucd_rsp_ptr)) in ufshcd_transfer_rsp_status()
5488 schedule_work(&hba->eeh_work); in ufshcd_transfer_rsp_status()
5493 dev_err(hba->dev, in ufshcd_transfer_rsp_status()
5497 dev_err(hba->dev, in ufshcd_transfer_rsp_status()
5507 dev_warn(hba->dev, in ufshcd_transfer_rsp_status()
5510 lrbp->task_tag); in ufshcd_transfer_rsp_status()
5523 dev_err(hba->dev, in ufshcd_transfer_rsp_status()
5525 ocs, lrbp->task_tag); in ufshcd_transfer_rsp_status()
5532 (host_byte(result) != DID_REQUEUE) && !hba->silence_err_logs) in ufshcd_transfer_rsp_status()
5533 ufshcd_print_tr(hba, lrbp->task_tag, true); in ufshcd_transfer_rsp_status()
5547 if (hba->active_uic_cmd && in ufshcd_is_auto_hibern8_error()
5548 (hba->active_uic_cmd->command == UIC_CMD_DME_HIBER_ENTER || in ufshcd_is_auto_hibern8_error()
5549 hba->active_uic_cmd->command == UIC_CMD_DME_HIBER_EXIT)) in ufshcd_is_auto_hibern8_error()
5556 * ufshcd_uic_cmd_compl - handle completion of uic command
5561 * IRQ_HANDLED - If interrupt is valid
5562 * IRQ_NONE - If invalid interrupt
5569 spin_lock(hba->host->host_lock); in ufshcd_uic_cmd_compl()
5570 cmd = hba->active_uic_cmd; in ufshcd_uic_cmd_compl()
5575 hba->errors |= (UFSHCD_UIC_HIBERN8_MASK & intr_status); in ufshcd_uic_cmd_compl()
5578 cmd->argument2 |= ufshcd_get_uic_cmd_result(hba); in ufshcd_uic_cmd_compl()
5579 cmd->argument3 = ufshcd_get_dme_attr_val(hba); in ufshcd_uic_cmd_compl()
5580 if (!hba->uic_async_done) in ufshcd_uic_cmd_compl()
5581 cmd->cmd_active = 0; in ufshcd_uic_cmd_compl()
5582 complete(&cmd->done); in ufshcd_uic_cmd_compl()
5586 if (intr_status & UFSHCD_UIC_PWR_MASK && hba->uic_async_done) { in ufshcd_uic_cmd_compl()
5587 cmd->cmd_active = 0; in ufshcd_uic_cmd_compl()
5588 complete(hba->uic_async_done); in ufshcd_uic_cmd_compl()
5596 spin_unlock(hba->host->host_lock); in ufshcd_uic_cmd_compl()
5605 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_release_scsi_cmd()
5614 * ufshcd_compl_one_cqe - handle a completion queue entry
5626 lrbp = &hba->lrb[task_tag]; in ufshcd_compl_one_cqe()
5627 lrbp->compl_time_stamp = ktime_get(); in ufshcd_compl_one_cqe()
5628 lrbp->compl_time_stamp_local_clock = local_clock(); in ufshcd_compl_one_cqe()
5629 cmd = lrbp->cmd; in ufshcd_compl_one_cqe()
5634 cmd->result = ufshcd_transfer_rsp_status(hba, lrbp, cqe); in ufshcd_compl_one_cqe()
5640 ocs = le32_to_cpu(cqe->status) & MASK_OCS; in ufshcd_compl_one_cqe()
5641 lrbp->utr_descriptor_ptr->header.ocs = ocs; in ufshcd_compl_one_cqe()
5643 complete(&hba->dev_cmd.complete); in ufshcd_compl_one_cqe()
5648 * __ufshcd_transfer_req_compl - handle SCSI and query command completion
5657 for_each_set_bit(tag, &completed_reqs, hba->nutrs) in __ufshcd_transfer_req_compl()
5663 UFSHCD_POLL_FROM_INTERRUPT_CONTEXT = -1
5671 for_each_set_bit(tag, completed_reqs, hba->nutrs) { in ufshcd_clear_polled()
5672 struct scsi_cmnd *cmd = hba->lrb[tag].cmd; in ufshcd_clear_polled()
5676 if (scsi_cmd_to_rq(cmd)->cmd_flags & REQ_POLLED) in ufshcd_clear_polled()
5692 if (hba->mcq_enabled) { in ufshcd_poll()
5693 hwq = &hba->uhq[queue_num]; in ufshcd_poll()
5698 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_poll()
5700 completed_reqs = ~tr_doorbell & hba->outstanding_reqs; in ufshcd_poll()
5701 WARN_ONCE(completed_reqs & ~hba->outstanding_reqs, in ufshcd_poll()
5703 hba->outstanding_reqs); in ufshcd_poll()
5708 hba->outstanding_reqs &= ~completed_reqs; in ufshcd_poll()
5709 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_poll()
5718 * ufshcd_mcq_compl_pending_transfer - MCQ mode function. It is
5737 for (tag = 0; tag < hba->nutrs; tag++) { in ufshcd_mcq_compl_pending_transfer()
5738 lrbp = &hba->lrb[tag]; in ufshcd_mcq_compl_pending_transfer()
5739 cmd = lrbp->cmd; in ufshcd_mcq_compl_pending_transfer()
5741 test_bit(SCMD_STATE_COMPLETE, &cmd->state)) in ufshcd_mcq_compl_pending_transfer()
5754 spin_lock_irqsave(&hwq->cq_lock, flags); in ufshcd_mcq_compl_pending_transfer()
5755 if (cmd && !test_bit(SCMD_STATE_COMPLETE, &cmd->state)) { in ufshcd_mcq_compl_pending_transfer()
5760 spin_unlock_irqrestore(&hwq->cq_lock, flags); in ufshcd_mcq_compl_pending_transfer()
5768 * ufshcd_transfer_req_compl - handle SCSI and query command completion
5772 * IRQ_HANDLED - If interrupt is valid
5773 * IRQ_NONE - If invalid interrupt
5785 !(hba->quirks & UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR)) in ufshcd_transfer_req_compl()
5795 ufshcd_poll(hba->host, UFSHCD_POLL_FROM_INTERRUPT_CONTEXT); in ufshcd_transfer_req_compl()
5811 mutex_lock(&hba->ee_ctrl_mutex); in ufshcd_write_ee_control()
5812 err = __ufshcd_write_ee_control(hba, hba->ee_ctrl_mask); in ufshcd_write_ee_control()
5813 mutex_unlock(&hba->ee_ctrl_mutex); in ufshcd_write_ee_control()
5815 dev_err(hba->dev, "%s: failed to write ee control %d\n", in ufshcd_write_ee_control()
5826 mutex_lock(&hba->ee_ctrl_mutex); in ufshcd_update_ee_control()
5829 if (ee_ctrl_mask != hba->ee_ctrl_mask) in ufshcd_update_ee_control()
5833 hba->ee_ctrl_mask = ee_ctrl_mask; in ufshcd_update_ee_control()
5836 mutex_unlock(&hba->ee_ctrl_mutex); in ufshcd_update_ee_control()
5841 * ufshcd_disable_ee - disable exception event
5842 * @hba: per-adapter instance
5848 * Return: zero on success, non-zero error value on failure.
5856 * ufshcd_enable_ee - enable exception event
5857 * @hba: per-adapter instance
5863 * Return: zero on success, non-zero error value on failure.
5871 * ufshcd_enable_auto_bkops - Allow device managed BKOPS
5872 * @hba: per-adapter instance
5879 * Return: zero on success, non-zero on failure.
5885 if (hba->auto_bkops_enabled) in ufshcd_enable_auto_bkops()
5891 dev_err(hba->dev, "%s: failed to enable bkops %d\n", in ufshcd_enable_auto_bkops()
5896 hba->auto_bkops_enabled = true; in ufshcd_enable_auto_bkops()
5902 dev_err(hba->dev, "%s: failed to disable exception event %d\n", in ufshcd_enable_auto_bkops()
5909 * ufshcd_disable_auto_bkops - block device in doing background operations
5910 * @hba: per-adapter instance
5914 * not-operable. Make sure to call ufshcd_enable_auto_bkops() whenever the
5918 * Return: zero on success, non-zero on failure.
5924 if (!hba->auto_bkops_enabled) in ufshcd_disable_auto_bkops()
5933 dev_err(hba->dev, "%s: failed to enable exception event %d\n", in ufshcd_disable_auto_bkops()
5941 dev_err(hba->dev, "%s: failed to disable bkops %d\n", in ufshcd_disable_auto_bkops()
5947 hba->auto_bkops_enabled = false; in ufshcd_disable_auto_bkops()
5949 hba->is_urgent_bkops_lvl_checked = false; in ufshcd_disable_auto_bkops()
5955 * ufshcd_force_reset_auto_bkops - force reset auto bkops state
5960 * as well. This function would change the auto-bkops state based on
5966 hba->auto_bkops_enabled = false; in ufshcd_force_reset_auto_bkops()
5967 hba->ee_ctrl_mask |= MASK_EE_URGENT_BKOPS; in ufshcd_force_reset_auto_bkops()
5970 hba->auto_bkops_enabled = true; in ufshcd_force_reset_auto_bkops()
5971 hba->ee_ctrl_mask &= ~MASK_EE_URGENT_BKOPS; in ufshcd_force_reset_auto_bkops()
5974 hba->urgent_bkops_lvl = BKOPS_STATUS_PERF_IMPACT; in ufshcd_force_reset_auto_bkops()
5975 hba->is_urgent_bkops_lvl_checked = false; in ufshcd_force_reset_auto_bkops()
5985 * ufshcd_bkops_ctrl - control the auto bkops based on current bkops status
5986 * @hba: per-adapter instance
5990 * bkops_status is greater than or equal to the "hba->urgent_bkops_lvl",
5993 * Return: 0 for success, non-zero in case of failure.
5995 * NOTE: Caller of this function can check the "hba->auto_bkops_enabled" flag
6001 enum bkops_status status = hba->urgent_bkops_lvl; in ufshcd_bkops_ctrl()
6007 dev_err(hba->dev, "%s: failed to get BKOPS status %d\n", in ufshcd_bkops_ctrl()
6011 dev_err(hba->dev, "%s: invalid BKOPS status %d\n", in ufshcd_bkops_ctrl()
6013 err = -EINVAL; in ufshcd_bkops_ctrl()
6036 if (hba->is_urgent_bkops_lvl_checked) in ufshcd_bkops_exception_event_handler()
6041 dev_err(hba->dev, "%s: failed to get BKOPS status %d\n", in ufshcd_bkops_exception_event_handler()
6053 dev_err(hba->dev, "%s: device raised urgent BKOPS exception for bkops status %d\n", in ufshcd_bkops_exception_event_handler()
6056 hba->urgent_bkops_lvl = curr_status; in ufshcd_bkops_exception_event_handler()
6057 hba->is_urgent_bkops_lvl_checked = true; in ufshcd_bkops_exception_event_handler()
6064 dev_err(hba->dev, "%s: failed to handle urgent bkops %d\n", in ufshcd_bkops_exception_event_handler()
6075 if (hba->dev_info.wspecversion < 0x410) in ufshcd_read_device_lvl_exception_id()
6076 return -EOPNOTSUPP; in ufshcd_read_device_lvl_exception_id()
6079 mutex_lock(&hba->dev_cmd.lock); in ufshcd_read_device_lvl_exception_id()
6085 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in ufshcd_read_device_lvl_exception_id()
6090 dev_err(hba->dev, "%s: failed to read device level exception %d\n", in ufshcd_read_device_lvl_exception_id()
6096 *exception_id = get_unaligned_be64(&upiu_resp->osf3); in ufshcd_read_device_lvl_exception_id()
6098 mutex_unlock(&hba->dev_cmd.lock); in ufshcd_read_device_lvl_exception_id()
6119 hba->dev_info.wb_enabled == enable) in ufshcd_wb_toggle()
6124 dev_err(hba->dev, "%s: Write Booster %s failed %d\n", in ufshcd_wb_toggle()
6129 hba->dev_info.wb_enabled = enable; in ufshcd_wb_toggle()
6130 dev_dbg(hba->dev, "%s: Write Booster %s\n", in ufshcd_wb_toggle()
6144 dev_err(hba->dev, "%s: WB-Buf Flush during H8 %s failed %d\n", in ufshcd_wb_toggle_buf_flush_during_h8()
6148 dev_dbg(hba->dev, "%s: WB-Buf Flush during H8 %s\n", in ufshcd_wb_toggle_buf_flush_during_h8()
6157 hba->dev_info.wb_buf_flush_enabled == enable) in ufshcd_wb_toggle_buf_flush()
6162 dev_err(hba->dev, "%s: WB-Buf Flush %s failed %d\n", in ufshcd_wb_toggle_buf_flush()
6167 hba->dev_info.wb_buf_flush_enabled = enable; in ufshcd_wb_toggle_buf_flush()
6168 dev_dbg(hba->dev, "%s: WB-Buf Flush %s\n", in ufshcd_wb_toggle_buf_flush()
6183 dev_err(hba->dev, "%s: Enable WB buf resize operation failed %d\n", in ufshcd_wb_set_resize_en()
6201 dev_err(hba->dev, "%s: dCurWriteBoosterBufferSize read failed %d\n", in ufshcd_wb_curr_buff_threshold_check()
6207 dev_info(hba->dev, "dCurWBBuf: %d WB disabled until free-space is available\n", in ufshcd_wb_curr_buff_threshold_check()
6212 return avail_buf < hba->vps->wb_flush_threshold; in ufshcd_wb_curr_buff_threshold_check()
6222 hba->caps &= ~UFSHCD_CAP_WB_EN; in ufshcd_wb_force_disable()
6224 dev_info(hba->dev, "%s: WB force disabled\n", __func__); in ufshcd_wb_force_disable()
6238 dev_err(hba->dev, in ufshcd_is_wb_buf_lifetime_available()
6245 dev_err(hba->dev, "%s: WB buf lifetime is exhausted 0x%02X\n", in ufshcd_is_wb_buf_lifetime_available()
6250 dev_dbg(hba->dev, "%s: WB buf lifetime is 0x%02X\n", in ufshcd_is_wb_buf_lifetime_available()
6271 * With user-space reduction enabled, it's enough to enable flush in ufshcd_wb_need_flush()
6274 * With user-space preserved enabled, the current-buffer in ufshcd_wb_need_flush()
6284 dev_warn(hba->dev, "%s: dAvailableWriteBoosterBufferSize read failed %d\n", in ufshcd_wb_need_flush()
6289 if (!hba->dev_info.b_presrv_uspc_en) in ufshcd_wb_need_flush()
6311 * ufshcd_exception_event_handler - handle exceptions raised by device
6326 dev_err(hba->dev, "%s: failed to get exception status %d\n", in ufshcd_exception_event_handler()
6333 if (status & hba->ee_drv_mask & MASK_EE_URGENT_BKOPS) in ufshcd_exception_event_handler()
6336 if (status & hba->ee_drv_mask & MASK_EE_URGENT_TEMP) in ufshcd_exception_event_handler()
6339 if (status & hba->ee_drv_mask & MASK_EE_HEALTH_CRITICAL) { in ufshcd_exception_event_handler()
6340 hba->critical_health_count++; in ufshcd_exception_event_handler()
6341 sysfs_notify(&hba->dev->kobj, NULL, "critical_health"); in ufshcd_exception_event_handler()
6344 if (status & hba->ee_drv_mask & MASK_EE_DEV_LVL_EXCEPTION) { in ufshcd_exception_event_handler()
6345 atomic_inc(&hba->dev_lvl_exception_count); in ufshcd_exception_event_handler()
6346 sysfs_notify(&hba->dev->kobj, NULL, "device_lvl_exception_count"); in ufshcd_exception_event_handler()
6352 /* Complete requests that have door-bell cleared */
6355 if (hba->mcq_enabled) in ufshcd_complete_requests()
6364 * ufshcd_quirk_dl_nac_errors - This function checks if error handling is
6366 * @hba: per-adapter instance
6375 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6380 if (hba->saved_err & (CONTROLLER_FATAL_ERROR | SYSTEM_BUS_FATAL_ERROR)) in ufshcd_quirk_dl_nac_errors()
6383 if ((hba->saved_err & DEVICE_FATAL_ERROR) || in ufshcd_quirk_dl_nac_errors()
6384 ((hba->saved_err & UIC_ERROR) && in ufshcd_quirk_dl_nac_errors()
6385 (hba->saved_uic_err & UFSHCD_UIC_DL_TCx_REPLAY_ERROR))) in ufshcd_quirk_dl_nac_errors()
6388 if ((hba->saved_err & UIC_ERROR) && in ufshcd_quirk_dl_nac_errors()
6389 (hba->saved_uic_err & UFSHCD_UIC_DL_NAC_RECEIVED_ERROR)) { in ufshcd_quirk_dl_nac_errors()
6394 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6396 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6402 if ((hba->saved_err & INT_FATAL_ERRORS) || in ufshcd_quirk_dl_nac_errors()
6403 ((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()
6410 * - If we don't get any response then do error recovery. in ufshcd_quirk_dl_nac_errors()
6411 * - If we get response then clear the DL NAC error bit. in ufshcd_quirk_dl_nac_errors()
6414 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6416 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6422 if (hba->saved_uic_err == UFSHCD_UIC_DL_NAC_RECEIVED_ERROR) in ufshcd_quirk_dl_nac_errors()
6423 hba->saved_err &= ~UIC_ERROR; in ufshcd_quirk_dl_nac_errors()
6425 hba->saved_uic_err &= ~UFSHCD_UIC_DL_NAC_RECEIVED_ERROR; in ufshcd_quirk_dl_nac_errors()
6426 if (!hba->saved_uic_err) in ufshcd_quirk_dl_nac_errors()
6430 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6437 return (hba->saved_uic_err & UFSHCD_UIC_DL_PA_INIT_ERROR) || in ufshcd_is_saved_err_fatal()
6438 (hba->saved_err & (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK)); in ufshcd_is_saved_err_fatal()
6443 lockdep_assert_held(hba->host->host_lock); in ufshcd_schedule_eh_work()
6446 if (hba->ufshcd_state != UFSHCD_STATE_ERROR) { in ufshcd_schedule_eh_work()
6447 if (hba->force_reset || ufshcd_is_link_broken(hba) || in ufshcd_schedule_eh_work()
6449 hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_FATAL; in ufshcd_schedule_eh_work()
6451 hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_NON_FATAL; in ufshcd_schedule_eh_work()
6452 queue_work(hba->eh_wq, &hba->eh_work); in ufshcd_schedule_eh_work()
6458 spin_lock_irq(hba->host->host_lock); in ufshcd_force_error_recovery()
6459 hba->force_reset = true; in ufshcd_force_error_recovery()
6461 spin_unlock_irq(hba->host->host_lock); in ufshcd_force_error_recovery()
6466 mutex_lock(&hba->wb_mutex); in ufshcd_clk_scaling_allow()
6467 down_write(&hba->clk_scaling_lock); in ufshcd_clk_scaling_allow()
6468 hba->clk_scaling.is_allowed = allow; in ufshcd_clk_scaling_allow()
6469 up_write(&hba->clk_scaling_lock); in ufshcd_clk_scaling_allow()
6470 mutex_unlock(&hba->wb_mutex); in ufshcd_clk_scaling_allow()
6476 if (hba->clk_scaling.is_enabled) in ufshcd_clk_scaling_suspend()
6481 if (hba->clk_scaling.is_enabled) in ufshcd_clk_scaling_suspend()
6489 if (pm_runtime_status_suspended(&hba->ufs_device_wlun->sdev_gendev) || in ufshcd_err_handling_prepare()
6490 hba->is_sys_suspended) { in ufshcd_err_handling_prepare()
6501 ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq); in ufshcd_err_handling_prepare()
6502 ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq2); in ufshcd_err_handling_prepare()
6506 pm_op = hba->is_sys_suspended ? UFS_SYSTEM_PM : UFS_RUNTIME_PM; in ufshcd_err_handling_prepare()
6511 hba->clk_scaling.is_enabled) in ufshcd_err_handling_prepare()
6516 blk_mq_quiesce_tagset(&hba->host->tag_set); in ufshcd_err_handling_prepare()
6517 cancel_work_sync(&hba->eeh_work); in ufshcd_err_handling_prepare()
6522 blk_mq_unquiesce_tagset(&hba->host->tag_set); in ufshcd_err_handling_unprepare()
6531 return (!hba->is_powered || hba->shutting_down || in ufshcd_err_handling_should_stop()
6532 !hba->ufs_device_wlun || in ufshcd_err_handling_should_stop()
6533 hba->ufshcd_state == UFSHCD_STATE_ERROR || in ufshcd_err_handling_should_stop()
6534 (!(hba->saved_err || hba->saved_uic_err || hba->force_reset || in ufshcd_err_handling_should_stop()
6541 struct Scsi_Host *shost = hba->host; in ufshcd_recover_pm_error()
6546 hba->is_sys_suspended = false; in ufshcd_recover_pm_error()
6551 ret = pm_runtime_set_active(&hba->ufs_device_wlun->sdev_gendev); in ufshcd_recover_pm_error()
6555 ret = pm_runtime_set_active(hba->dev); in ufshcd_recover_pm_error()
6564 q = sdev->request_queue; in ufshcd_recover_pm_error()
6565 if (q->dev && (q->rpm_status == RPM_SUSPENDED || in ufshcd_recover_pm_error()
6566 q->rpm_status == RPM_SUSPENDING)) in ufshcd_recover_pm_error()
6567 pm_request_resume(q->dev); in ufshcd_recover_pm_error()
6579 struct ufs_pa_layer_attr *pwr_info = &hba->pwr_info; in ufshcd_is_pwr_mode_restore_needed()
6584 if (pwr_info->pwr_rx != ((mode >> PWRMODE_RX_OFFSET) & PWRMODE_MASK)) in ufshcd_is_pwr_mode_restore_needed()
6587 if (pwr_info->pwr_tx != (mode & PWRMODE_MASK)) in ufshcd_is_pwr_mode_restore_needed()
6596 u32 tag = rq->tag; in ufshcd_abort_one()
6598 struct scsi_device *sdev = cmd->device; in ufshcd_abort_one()
6599 struct Scsi_Host *shost = sdev->host; in ufshcd_abort_one()
6603 dev_err(hba->dev, "Aborting tag %d / CDB %#02x %s\n", tag, in ufshcd_abort_one()
6604 hba->lrb[tag].cmd ? hba->lrb[tag].cmd->cmnd[0] : -1, in ufshcd_abort_one()
6611 * ufshcd_abort_all - Abort all pending commands.
6620 blk_mq_tagset_busy_iter(&hba->host->tag_set, ufshcd_abort_one, &ret); in ufshcd_abort_all()
6625 for_each_set_bit(tag, &hba->outstanding_tasks, hba->nutmrs) { in ufshcd_abort_all()
6639 * ufshcd_err_handler - handle UFS errors that require s/w attention
6653 dev_info(hba->dev, in ufshcd_err_handler()
6655 __func__, ufshcd_state_name[hba->ufshcd_state], in ufshcd_err_handler()
6656 hba->is_powered, hba->shutting_down, hba->saved_err, in ufshcd_err_handler()
6657 hba->saved_uic_err, hba->force_reset, in ufshcd_err_handler()
6660 down(&hba->host_sem); in ufshcd_err_handler()
6661 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6663 if (hba->ufshcd_state != UFSHCD_STATE_ERROR) in ufshcd_err_handler()
6664 hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; in ufshcd_err_handler()
6665 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6666 up(&hba->host_sem); in ufshcd_err_handler()
6669 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6673 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6675 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6677 /* Complete requests that have door-bell cleared by h/w */ in ufshcd_err_handler()
6679 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6684 if (hba->ufshcd_state != UFSHCD_STATE_ERROR) in ufshcd_err_handler()
6685 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_err_handler()
6693 if ((hba->dev_quirks & UFS_DEVICE_QUIRK_RECOVERY_FROM_DL_NAC_ERRORS) && in ufshcd_err_handler()
6694 !hba->force_reset) { in ufshcd_err_handler()
6697 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6700 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6705 if ((hba->saved_err & (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK)) || in ufshcd_err_handler()
6706 (hba->saved_uic_err && in ufshcd_err_handler()
6707 (hba->saved_uic_err != UFSHCD_UIC_PA_GENERIC_ERROR))) { in ufshcd_err_handler()
6708 bool pr_prdt = !!(hba->saved_err & SYSTEM_BUS_FATAL_ERROR); in ufshcd_err_handler()
6710 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6714 ufshcd_print_tmrs(hba, hba->outstanding_tasks); in ufshcd_err_handler()
6716 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6724 if (hba->force_reset || ufshcd_is_link_broken(hba) || in ufshcd_err_handler()
6726 ((hba->saved_err & UIC_ERROR) && in ufshcd_err_handler()
6727 (hba->saved_uic_err & (UFSHCD_UIC_DL_NAC_RECEIVED_ERROR | in ufshcd_err_handler()
6737 if (hba->saved_uic_err & UFSHCD_UIC_PA_GENERIC_ERROR) { in ufshcd_err_handler()
6738 hba->saved_uic_err &= ~UFSHCD_UIC_PA_GENERIC_ERROR; in ufshcd_err_handler()
6739 if (!hba->saved_uic_err) in ufshcd_err_handler()
6740 hba->saved_err &= ~UIC_ERROR; in ufshcd_err_handler()
6741 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6744 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6745 if (!hba->saved_err && !needs_restore) in ufshcd_err_handler()
6749 hba->silence_err_logs = true; in ufshcd_err_handler()
6751 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6755 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6756 hba->silence_err_logs = false; in ufshcd_err_handler()
6765 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6770 down_write(&hba->clk_scaling_lock); in ufshcd_err_handler()
6771 hba->force_pmc = true; in ufshcd_err_handler()
6772 pmc_err = ufshcd_config_pwr_mode(hba, &(hba->pwr_info)); in ufshcd_err_handler()
6775 dev_err(hba->dev, "%s: Failed to restore power mode, err = %d\n", in ufshcd_err_handler()
6778 hba->force_pmc = false; in ufshcd_err_handler()
6780 up_write(&hba->clk_scaling_lock); in ufshcd_err_handler()
6781 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6789 hba->force_reset = false; in ufshcd_err_handler()
6790 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6793 dev_err(hba->dev, "%s: reset and restore failed with err %d\n", in ufshcd_err_handler()
6797 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6802 if (hba->ufshcd_state == UFSHCD_STATE_RESET) in ufshcd_err_handler()
6803 hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; in ufshcd_err_handler()
6804 if (hba->saved_err || hba->saved_uic_err) in ufshcd_err_handler()
6805 dev_err_ratelimited(hba->dev, "%s: exit: saved_err 0x%x saved_uic_err 0x%x", in ufshcd_err_handler()
6806 __func__, hba->saved_err, hba->saved_uic_err); in ufshcd_err_handler()
6809 if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL && in ufshcd_err_handler()
6810 hba->ufshcd_state != UFSHCD_STATE_ERROR) { in ufshcd_err_handler()
6811 if (--retries) in ufshcd_err_handler()
6813 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_err_handler()
6816 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6818 up(&hba->host_sem); in ufshcd_err_handler()
6820 dev_info(hba->dev, "%s finished; HBA state %s\n", __func__, in ufshcd_err_handler()
6821 ufshcd_state_name[hba->ufshcd_state]); in ufshcd_err_handler()
6825 * ufshcd_update_uic_error - check and set fatal UIC error flags.
6826 * @hba: per-adapter instance
6829 * IRQ_HANDLED - If interrupt is valid
6830 * IRQ_NONE - If invalid interrupt
6847 dev_dbg(hba->dev, "%s: UIC Lane error reported\n", in ufshcd_update_uic_error()
6854 hba->uic_error |= UFSHCD_UIC_PA_GENERIC_ERROR; in ufshcd_update_uic_error()
6855 if (hba->uic_async_done && hba->active_uic_cmd) in ufshcd_update_uic_error()
6856 cmd = hba->active_uic_cmd; in ufshcd_update_uic_error()
6861 if (cmd && (cmd->command == UIC_CMD_DME_SET)) in ufshcd_update_uic_error()
6862 hba->uic_error &= ~UFSHCD_UIC_PA_GENERIC_ERROR; in ufshcd_update_uic_error()
6874 hba->uic_error |= UFSHCD_UIC_DL_PA_INIT_ERROR; in ufshcd_update_uic_error()
6875 else if (hba->dev_quirks & in ufshcd_update_uic_error()
6878 hba->uic_error |= in ufshcd_update_uic_error()
6881 hba->uic_error |= UFSHCD_UIC_DL_TCx_REPLAY_ERROR; in ufshcd_update_uic_error()
6891 hba->uic_error |= UFSHCD_UIC_NL_ERROR; in ufshcd_update_uic_error()
6899 hba->uic_error |= UFSHCD_UIC_TL_ERROR; in ufshcd_update_uic_error()
6907 hba->uic_error |= UFSHCD_UIC_DME_ERROR; in ufshcd_update_uic_error()
6911 dev_dbg(hba->dev, "%s: UIC error flags = 0x%08x\n", in ufshcd_update_uic_error()
6912 __func__, hba->uic_error); in ufshcd_update_uic_error()
6917 * ufshcd_check_errors - Check for errors that need s/w attention
6918 * @hba: per-adapter instance
6922 * IRQ_HANDLED - If interrupt is valid
6923 * IRQ_NONE - If invalid interrupt
6930 spin_lock(hba->host->host_lock); in ufshcd_check_errors()
6931 hba->errors |= UFSHCD_ERROR_MASK & intr_status; in ufshcd_check_errors()
6933 if (hba->errors & INT_FATAL_ERRORS) { in ufshcd_check_errors()
6935 hba->errors); in ufshcd_check_errors()
6939 if (hba->errors & UIC_ERROR) { in ufshcd_check_errors()
6940 hba->uic_error = 0; in ufshcd_check_errors()
6942 if (hba->uic_error) in ufshcd_check_errors()
6946 if (hba->errors & UFSHCD_UIC_HIBERN8_MASK) { in ufshcd_check_errors()
6947 dev_err(hba->dev, in ufshcd_check_errors()
6948 "%s: Auto Hibern8 %s failed - status: 0x%08x, upmcrs: 0x%08x\n", in ufshcd_check_errors()
6949 __func__, (hba->errors & UIC_HIBERNATE_ENTER) ? in ufshcd_check_errors()
6951 hba->errors, ufshcd_get_upmcrs(hba)); in ufshcd_check_errors()
6953 hba->errors); in ufshcd_check_errors()
6963 hba->saved_err |= hba->errors; in ufshcd_check_errors()
6964 hba->saved_uic_err |= hba->uic_error; in ufshcd_check_errors()
6967 if ((hba->saved_err & in ufshcd_check_errors()
6969 (hba->saved_uic_err && in ufshcd_check_errors()
6970 (hba->saved_uic_err != UFSHCD_UIC_PA_GENERIC_ERROR))) { in ufshcd_check_errors()
6971 dev_err(hba->dev, "%s: saved_err 0x%x saved_uic_err 0x%x\n", in ufshcd_check_errors()
6972 __func__, hba->saved_err, in ufshcd_check_errors()
6973 hba->saved_uic_err); in ufshcd_check_errors()
6982 * if (!queue_eh_work) - in ufshcd_check_errors()
6983 * Other errors are either non-fatal where host recovers in ufshcd_check_errors()
6987 hba->errors = 0; in ufshcd_check_errors()
6988 hba->uic_error = 0; in ufshcd_check_errors()
6989 spin_unlock(hba->host->host_lock); in ufshcd_check_errors()
6994 * ufshcd_tmc_handler - handle task management function completion
6998 * IRQ_HANDLED - If interrupt is valid
6999 * IRQ_NONE - If invalid interrupt
7007 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_tmc_handler()
7009 issued = hba->outstanding_tasks & ~pending; in ufshcd_tmc_handler()
7010 for_each_set_bit(tag, &issued, hba->nutmrs) { in ufshcd_tmc_handler()
7011 struct request *req = hba->tmf_rqs[tag]; in ufshcd_tmc_handler()
7012 struct completion *c = req->end_io_data; in ufshcd_tmc_handler()
7017 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_tmc_handler()
7023 * ufshcd_handle_mcq_cq_events - handle MCQ completion queue events
7038 outstanding_cqs = (1U << hba->nr_hw_queues) - 1; in ufshcd_handle_mcq_cq_events()
7041 nr_queues = hba->nr_hw_queues - hba->nr_queues[HCTX_TYPE_POLL]; in ufshcd_handle_mcq_cq_events()
7043 hwq = &hba->uhq[i]; in ufshcd_handle_mcq_cq_events()
7057 * ufshcd_sl_intr - Interrupt service routine
7062 * IRQ_HANDLED - If interrupt is valid
7063 * IRQ_NONE - If invalid interrupt
7072 if (intr_status & UFSHCD_ERROR_MASK || hba->errors) in ufshcd_sl_intr()
7088 * ufshcd_threaded_intr - Threaded interrupt service routine
7093 * IRQ_HANDLED - If interrupt is valid
7094 * IRQ_NONE - If invalid interrupt
7101 int retries = hba->nutrs; in ufshcd_threaded_intr()
7106 * There could be max of hba->nutrs reqs in flight and in worst case in ufshcd_threaded_intr()
7111 while (intr_status && retries--) { in ufshcd_threaded_intr()
7123 hba->outstanding_reqs) && !ufshcd_eh_in_progress(hba)) { in ufshcd_threaded_intr()
7124 dev_err(hba->dev, "%s: Unhandled interrupt 0x%08x (0x%08x, 0x%08x)\n", in ufshcd_threaded_intr()
7136 * ufshcd_intr - Main interrupt service routine
7141 * IRQ_HANDLED - If interrupt is valid
7142 * IRQ_WAKE_THREAD - If handling is moved to threaded handled
7143 * IRQ_NONE - If invalid interrupt
7150 if (!hba->mcq_enabled || !hba->mcq_esi_enabled) in ufshcd_intr()
7163 if (!test_bit(tag, &hba->outstanding_tasks)) in ufshcd_clear_tm_cmd()
7173 dev_err(hba->dev, "Clearing task management function with tag %d %s\n", in ufshcd_clear_tm_cmd()
7183 struct request_queue *q = hba->tmf_queue; in __ufshcd_issue_tm_cmd()
7184 struct Scsi_Host *host = hba->host; in __ufshcd_issue_tm_cmd()
7197 req->end_io_data = &wait; in __ufshcd_issue_tm_cmd()
7200 spin_lock_irqsave(host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7202 task_tag = req->tag; in __ufshcd_issue_tm_cmd()
7203 hba->tmf_rqs[req->tag] = req; in __ufshcd_issue_tm_cmd()
7204 treq->upiu_req.req_header.task_tag = task_tag; in __ufshcd_issue_tm_cmd()
7206 memcpy(hba->utmrdl_base_addr + task_tag, treq, sizeof(*treq)); in __ufshcd_issue_tm_cmd()
7209 __set_bit(task_tag, &hba->outstanding_tasks); in __ufshcd_issue_tm_cmd()
7211 spin_unlock_irqrestore(host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7223 dev_err(hba->dev, "%s: task management cmd 0x%.2x timed-out\n", in __ufshcd_issue_tm_cmd()
7226 dev_WARN(hba->dev, "%s: unable to clear tm cmd (slot %d) after timeout\n", in __ufshcd_issue_tm_cmd()
7228 err = -ETIMEDOUT; in __ufshcd_issue_tm_cmd()
7231 memcpy(treq, hba->utmrdl_base_addr + task_tag, sizeof(*treq)); in __ufshcd_issue_tm_cmd()
7236 spin_lock_irqsave(hba->host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7237 hba->tmf_rqs[req->tag] = NULL; in __ufshcd_issue_tm_cmd()
7238 __clear_bit(task_tag, &hba->outstanding_tasks); in __ufshcd_issue_tm_cmd()
7239 spin_unlock_irqrestore(hba->host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7248 * ufshcd_issue_tm_cmd - issues task management commands to controller
7255 * Return: non-zero value on error, zero on success.
7281 if (err == -ETIMEDOUT) in ufshcd_issue_tm_cmd()
7286 dev_err(hba->dev, "%s: failed, ocs = 0x%x\n", in ufshcd_issue_tm_cmd()
7295 * ufshcd_issue_devman_upiu_cmd - API for sending "utrd" type requests
7296 * @hba: per-adapter instance
7304 * Those type of requests uses UTP Transfer Request Descriptor - utrd.
7309 * the caller is expected to hold the hba->dev_cmd.lock mutex.
7320 const u32 tag = hba->reserved_slot; in ufshcd_issue_devman_upiu_cmd()
7321 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_issue_devman_upiu_cmd()
7325 /* Protects use of hba->reserved_slot. */ in ufshcd_issue_devman_upiu_cmd()
7326 lockdep_assert_held(&hba->dev_cmd.lock); in ufshcd_issue_devman_upiu_cmd()
7333 req_upiu->header.task_tag = tag; in ufshcd_issue_devman_upiu_cmd()
7336 memcpy(lrbp->ucd_req_ptr, req_upiu, sizeof(*lrbp->ucd_req_ptr)); in ufshcd_issue_devman_upiu_cmd()
7342 memcpy(lrbp->ucd_req_ptr + 1, desc_buff, *buff_len); in ufshcd_issue_devman_upiu_cmd()
7346 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_issue_devman_upiu_cmd()
7349 * ignore the returning value here - ufshcd_check_query_response is in ufshcd_issue_devman_upiu_cmd()
7356 memcpy(rsp_upiu, lrbp->ucd_rsp_ptr, sizeof(*rsp_upiu)); in ufshcd_issue_devman_upiu_cmd()
7358 u8 *descp = (u8 *)lrbp->ucd_rsp_ptr + sizeof(*rsp_upiu); in ufshcd_issue_devman_upiu_cmd()
7359 u16 resp_len = be16_to_cpu(lrbp->ucd_rsp_ptr->header in ufshcd_issue_devman_upiu_cmd()
7366 dev_warn(hba->dev, in ufshcd_issue_devman_upiu_cmd()
7370 err = -EINVAL; in ufshcd_issue_devman_upiu_cmd()
7378 * ufshcd_exec_raw_upiu_cmd - API function for sending raw upiu commands
7379 * @hba: per-adapter instance
7381 * @rsp_upiu: upiu reply - only 8 DW as we do not support scsi commands
7405 u8 tm_f = req_upiu->header.tm_function; in ufshcd_exec_raw_upiu_cmd()
7426 if (err == -ETIMEDOUT) in ufshcd_exec_raw_upiu_cmd()
7431 dev_err(hba->dev, "%s: failed, ocs = 0x%x\n", __func__, in ufshcd_exec_raw_upiu_cmd()
7440 err = -EINVAL; in ufshcd_exec_raw_upiu_cmd()
7449 * ufshcd_advanced_rpmb_req_handler - handle advanced RPMB request
7459 * Return: zero on success, non-zero on failure.
7466 const u32 tag = hba->reserved_slot; in ufshcd_advanced_rpmb_req_handler()
7467 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_advanced_rpmb_req_handler()
7473 int ehs = (hba->capabilities & MASK_EHSLUTRD_SUPPORTED) ? 2 : 0; in ufshcd_advanced_rpmb_req_handler()
7475 /* Protects use of hba->reserved_slot. */ in ufshcd_advanced_rpmb_req_handler()
7483 req_upiu->header.task_tag = tag; in ufshcd_advanced_rpmb_req_handler()
7486 memcpy(lrbp->ucd_req_ptr, req_upiu, sizeof(*lrbp->ucd_req_ptr)); in ufshcd_advanced_rpmb_req_handler()
7488 memcpy(lrbp->ucd_req_ptr + 1, req_ehs, sizeof(*req_ehs)); in ufshcd_advanced_rpmb_req_handler()
7493 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_advanced_rpmb_req_handler()
7499 memcpy(rsp_upiu, lrbp->ucd_rsp_ptr, sizeof(*rsp_upiu)); in ufshcd_advanced_rpmb_req_handler()
7501 result = (lrbp->ucd_rsp_ptr->header.response << 8) | in ufshcd_advanced_rpmb_req_handler()
7502 lrbp->ucd_rsp_ptr->header.status; in ufshcd_advanced_rpmb_req_handler()
7504 ehs_len = lrbp->ucd_rsp_ptr->header.ehs_length; in ufshcd_advanced_rpmb_req_handler()
7515 ehs_data = (u8 *)lrbp->ucd_rsp_ptr + EHS_OFFSET_IN_RESPONSE; in ufshcd_advanced_rpmb_req_handler()
7526 * ufshcd_eh_device_reset_handler() - Reset a single logical unit.
7542 host = cmd->device->host; in ufshcd_eh_device_reset_handler()
7545 lun = ufshcd_scsi_to_upiu_lun(cmd->device->lun); in ufshcd_eh_device_reset_handler()
7553 if (hba->mcq_enabled) { in ufshcd_eh_device_reset_handler()
7554 for (pos = 0; pos < hba->nutrs; pos++) { in ufshcd_eh_device_reset_handler()
7555 lrbp = &hba->lrb[pos]; in ufshcd_eh_device_reset_handler()
7556 if (ufshcd_cmd_inflight(lrbp->cmd) && in ufshcd_eh_device_reset_handler()
7557 lrbp->lun == lun) { in ufshcd_eh_device_reset_handler()
7559 hwq = ufshcd_mcq_req_to_hwq(hba, scsi_cmd_to_rq(lrbp->cmd)); in ufshcd_eh_device_reset_handler()
7568 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7569 for_each_set_bit(pos, &hba->outstanding_reqs, hba->nutrs) in ufshcd_eh_device_reset_handler()
7570 if (hba->lrb[pos].lun == lun) in ufshcd_eh_device_reset_handler()
7572 hba->outstanding_reqs &= ~pending_reqs; in ufshcd_eh_device_reset_handler()
7573 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7575 for_each_set_bit(pos, &pending_reqs, hba->nutrs) { in ufshcd_eh_device_reset_handler()
7577 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7580 hba->outstanding_reqs |= not_cleared; in ufshcd_eh_device_reset_handler()
7582 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7584 dev_err(hba->dev, "%s: failed to clear request %d\n", in ufshcd_eh_device_reset_handler()
7591 hba->req_abort_count = 0; in ufshcd_eh_device_reset_handler()
7596 dev_err(hba->dev, "%s: failed with err %d\n", __func__, err); in ufshcd_eh_device_reset_handler()
7607 for_each_set_bit(tag, &bitmap, hba->nutrs) { in ufshcd_set_req_abort_skip()
7608 lrbp = &hba->lrb[tag]; in ufshcd_set_req_abort_skip()
7609 lrbp->req_abort_skip = true; in ufshcd_set_req_abort_skip()
7614 * ufshcd_try_to_abort_task - abort a specific task
7619 * command, and in host controller by clearing the door-bell register. There can
7624 * Return: zero on success, non-zero on failure.
7628 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_try_to_abort_task()
7633 for (poll_cnt = 100; poll_cnt; poll_cnt--) { in ufshcd_try_to_abort_task()
7634 err = ufshcd_issue_tm_cmd(hba, lrbp->lun, lrbp->task_tag, in ufshcd_try_to_abort_task()
7638 dev_err(hba->dev, "%s: cmd pending in the device. tag = %d\n", in ufshcd_try_to_abort_task()
7647 hba->dev, in ufshcd_try_to_abort_task()
7650 if (!ufshcd_cmd_inflight(lrbp->cmd)) { in ufshcd_try_to_abort_task()
7651 dev_info(hba->dev, in ufshcd_try_to_abort_task()
7658 dev_err(hba->dev, in ufshcd_try_to_abort_task()
7666 return -EBUSY; in ufshcd_try_to_abort_task()
7668 err = ufshcd_issue_tm_cmd(hba, lrbp->lun, lrbp->task_tag, in ufshcd_try_to_abort_task()
7673 dev_err(hba->dev, "%s: issued. tag = %d, err %d\n", in ufshcd_try_to_abort_task()
7681 dev_err(hba->dev, "%s: Failed clearing cmd at tag %d, err %d\n", in ufshcd_try_to_abort_task()
7688 * ufshcd_abort - scsi host template eh_abort_handler callback
7695 struct Scsi_Host *host = cmd->device->host; in ufshcd_abort()
7697 int tag = scsi_cmd_to_rq(cmd)->tag; in ufshcd_abort()
7698 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_abort()
7706 if (!hba->mcq_enabled) { in ufshcd_abort()
7708 if (!test_bit(tag, &hba->outstanding_reqs)) { in ufshcd_abort()
7710 dev_err(hba->dev, in ufshcd_abort()
7712 __func__, tag, hba->outstanding_reqs, reg); in ufshcd_abort()
7718 dev_info(hba->dev, "%s: Device abort task at tag %d\n", __func__, tag); in ufshcd_abort()
7728 if (!hba->req_abort_count) { in ufshcd_abort()
7737 hba->req_abort_count++; in ufshcd_abort()
7739 if (!hba->mcq_enabled && !(reg & (1 << tag))) { in ufshcd_abort()
7741 dev_err(hba->dev, in ufshcd_abort()
7749 * Task abort to the device W-LUN is illegal. When this command in ufshcd_abort()
7753 * the lrb taken by this cmd and re-set it in outstanding_reqs, in ufshcd_abort()
7756 if (lrbp->lun == UFS_UPIU_UFS_DEVICE_WLUN) { in ufshcd_abort()
7757 ufshcd_update_evt_hist(hba, UFS_EVT_ABORT, lrbp->lun); in ufshcd_abort()
7759 spin_lock_irqsave(host->host_lock, flags); in ufshcd_abort()
7760 hba->force_reset = true; in ufshcd_abort()
7762 spin_unlock_irqrestore(host->host_lock, flags); in ufshcd_abort()
7766 if (hba->mcq_enabled) { in ufshcd_abort()
7773 if (lrbp->req_abort_skip) { in ufshcd_abort()
7774 dev_err(hba->dev, "%s: skipping abort\n", __func__); in ufshcd_abort()
7775 ufshcd_set_req_abort_skip(hba, hba->outstanding_reqs); in ufshcd_abort()
7781 dev_err(hba->dev, "%s: failed with err %d\n", __func__, err); in ufshcd_abort()
7782 ufshcd_set_req_abort_skip(hba, hba->outstanding_reqs); in ufshcd_abort()
7791 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_abort()
7792 outstanding = __test_and_clear_bit(tag, &hba->outstanding_reqs); in ufshcd_abort()
7793 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_abort()
7807 * ufshcd_process_probe_result - Process the ufshcd_probe_hba() result.
7817 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_process_probe_result()
7819 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_process_probe_result()
7820 else if (hba->ufshcd_state == UFSHCD_STATE_RESET) in ufshcd_process_probe_result()
7821 hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; in ufshcd_process_probe_result()
7822 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_process_probe_result()
7826 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_process_probe_result()
7830 * ufshcd_host_reset_and_restore - reset and restore host controller
7831 * @hba: per-adapter instance
7834 * local and remote (device) Uni-Pro stack and the attributes
7837 * Return: zero on success, non-zero on failure.
7848 hba->silence_err_logs = true; in ufshcd_host_reset_and_restore()
7850 hba->silence_err_logs = false; in ufshcd_host_reset_and_restore()
7869 dev_err(hba->dev, "%s: Host init failed %d\n", __func__, err); in ufshcd_host_reset_and_restore()
7875 * ufshcd_reset_and_restore - reset and re-initialize host/device
7876 * @hba: per-adapter instance
7878 * Reset and recover device, host and re-establish link. This
7881 * Return: zero on success, non-zero on failure.
7891 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7897 saved_err |= hba->saved_err; in ufshcd_reset_and_restore()
7898 saved_uic_err |= hba->saved_uic_err; in ufshcd_reset_and_restore()
7899 hba->saved_err = 0; in ufshcd_reset_and_restore()
7900 hba->saved_uic_err = 0; in ufshcd_reset_and_restore()
7901 hba->force_reset = false; in ufshcd_reset_and_restore()
7902 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_reset_and_restore()
7903 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7910 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7914 if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL && in ufshcd_reset_and_restore()
7915 hba->ufshcd_state != UFSHCD_STATE_ERROR && in ufshcd_reset_and_restore()
7916 hba->ufshcd_state != UFSHCD_STATE_EH_SCHEDULED_NON_FATAL) in ufshcd_reset_and_restore()
7917 err = -EAGAIN; in ufshcd_reset_and_restore()
7918 } while (err && --retries); in ufshcd_reset_and_restore()
7921 * Inform scsi mid-layer that we did reset and allow to handle in ufshcd_reset_and_restore()
7924 scsi_report_bus_reset(hba->host, 0); in ufshcd_reset_and_restore()
7926 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_reset_and_restore()
7927 hba->saved_err |= saved_err; in ufshcd_reset_and_restore()
7928 hba->saved_uic_err |= saved_uic_err; in ufshcd_reset_and_restore()
7930 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7936 * ufshcd_eh_host_reset_handler - host reset handler registered to scsi layer
7947 hba = shost_priv(cmd->device->host); in ufshcd_eh_host_reset_handler()
7951 * stuck in this function waiting for flush_work(&hba->eh_work). And in ufshcd_eh_host_reset_handler()
7955 if (hba->pm_op_in_progress) { in ufshcd_eh_host_reset_handler()
7962 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7963 hba->force_reset = true; in ufshcd_eh_host_reset_handler()
7965 dev_err(hba->dev, "%s: reset in progress - 1\n", __func__); in ufshcd_eh_host_reset_handler()
7966 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7968 flush_work(&hba->eh_work); in ufshcd_eh_host_reset_handler()
7970 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7971 if (hba->ufshcd_state == UFSHCD_STATE_ERROR) in ufshcd_eh_host_reset_handler()
7973 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7979 * ufshcd_get_max_icc_level - calculate the ICC level
7980 * @sup_curr_uA: max. current supported by the regulator
7984 * Return: calculated max ICC level for specific regulator.
7994 for (i = start_scan; i >= 0; i--) { in ufshcd_get_max_icc_level()
8025 * ufshcd_find_max_sup_active_icc_level - calculate the max ICC level
8027 * @hba: per-adapter instance
8037 if (!hba->vreg_info.vcc || !hba->vreg_info.vccq || in ufshcd_find_max_sup_active_icc_level()
8038 !hba->vreg_info.vccq2) { in ufshcd_find_max_sup_active_icc_level()
8041 * never-ending cycles of messages written back to storage by in ufshcd_find_max_sup_active_icc_level()
8045 dev_dbg(hba->dev, in ufshcd_find_max_sup_active_icc_level()
8046 "%s: Regulator capability was not set, actvIccLevel=%d", in ufshcd_find_max_sup_active_icc_level()
8051 if (hba->vreg_info.vcc->max_uA) in ufshcd_find_max_sup_active_icc_level()
8053 hba->vreg_info.vcc->max_uA, in ufshcd_find_max_sup_active_icc_level()
8054 POWER_DESC_MAX_ACTV_ICC_LVLS - 1, in ufshcd_find_max_sup_active_icc_level()
8057 if (hba->vreg_info.vccq->max_uA) in ufshcd_find_max_sup_active_icc_level()
8059 hba->vreg_info.vccq->max_uA, in ufshcd_find_max_sup_active_icc_level()
8063 if (hba->vreg_info.vccq2->max_uA) in ufshcd_find_max_sup_active_icc_level()
8065 hba->vreg_info.vccq2->max_uA, in ufshcd_find_max_sup_active_icc_level()
8085 dev_err(hba->dev, in ufshcd_set_active_icc_lvl()
8092 dev_dbg(hba->dev, "%s: setting icc_level 0x%x", __func__, icc_level); in ufshcd_set_active_icc_lvl()
8098 dev_err(hba->dev, in ufshcd_set_active_icc_lvl()
8108 struct Scsi_Host *shost = sdev->host; in ufshcd_blk_pm_runtime_init()
8111 blk_pm_runtime_init(sdev->request_queue, &sdev->sdev_gendev); in ufshcd_blk_pm_runtime_init()
8112 if (sdev->rpm_autosuspend) in ufshcd_blk_pm_runtime_init()
8113 pm_runtime_set_autosuspend_delay(&sdev->sdev_gendev, in ufshcd_blk_pm_runtime_init()
8114 shost->rpm_autosuspend_delay); in ufshcd_blk_pm_runtime_init()
8119 * ufshcd_scsi_add_wlus - Adds required W-LUs
8120 * @hba: per-adapter instance
8141 * Return: zero on success (all required W-LUs are added successfully),
8142 * non-zero error value on failure (if failed to add any of the required W-LU).
8149 hba->ufs_device_wlun = __scsi_add_device(hba->host, 0, 0, in ufshcd_scsi_add_wlus()
8151 if (IS_ERR(hba->ufs_device_wlun)) { in ufshcd_scsi_add_wlus()
8152 ret = PTR_ERR(hba->ufs_device_wlun); in ufshcd_scsi_add_wlus()
8153 hba->ufs_device_wlun = NULL; in ufshcd_scsi_add_wlus()
8156 scsi_device_put(hba->ufs_device_wlun); in ufshcd_scsi_add_wlus()
8158 sdev_rpmb = __scsi_add_device(hba->host, 0, 0, in ufshcd_scsi_add_wlus()
8167 sdev_boot = __scsi_add_device(hba->host, 0, 0, in ufshcd_scsi_add_wlus()
8170 dev_err(hba->dev, "%s: BOOT WLUN not found\n", __func__); in ufshcd_scsi_add_wlus()
8178 scsi_remove_device(hba->ufs_device_wlun); in ufshcd_scsi_add_wlus()
8185 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_wb_probe()
8194 * Probe WB only for UFS-2.2 and UFS-3.1 (and later) devices or in ufshcd_wb_probe()
8198 if (!(dev_info->wspecversion >= 0x310 || in ufshcd_wb_probe()
8199 dev_info->wspecversion == 0x220 || in ufshcd_wb_probe()
8200 (hba->dev_quirks & UFS_DEVICE_QUIRK_SUPPORT_EXTENDED_FEATURES))) in ufshcd_wb_probe()
8214 dev_info->wb_buffer_type = desc_buf[DEVICE_DESC_PARAM_WB_TYPE]; in ufshcd_wb_probe()
8216 dev_info->ext_wb_sup = get_unaligned_be16(desc_buf + in ufshcd_wb_probe()
8219 dev_info->b_presrv_uspc_en = in ufshcd_wb_probe()
8222 if (dev_info->wb_buffer_type == WB_BUF_MODE_SHARED) { in ufshcd_wb_probe()
8235 dev_info->wb_dedicated_lu = lun; in ufshcd_wb_probe()
8250 hba->caps &= ~UFSHCD_CAP_WB_EN; in ufshcd_wb_probe()
8255 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_temp_notif_probe()
8259 if (!(hba->caps & UFSHCD_CAP_TEMP_NOTIF) || dev_info->wspecversion < 0x300) in ufshcd_temp_notif_probe()
8280 if (hba->dev_info.wspecversion < 0x410) in ufshcd_device_lvl_exception_probe()
8288 atomic_set(&hba->dev_lvl_exception_count, 0); in ufshcd_device_lvl_exception_probe()
8294 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_set_rtt()
8297 int host_rtt_cap = hba->vops && hba->vops->max_num_rtt ? in ufshcd_set_rtt()
8298 hba->vops->max_num_rtt : hba->nortt; in ufshcd_set_rtt()
8300 /* RTT override makes sense only for UFS-4.0 and above */ in ufshcd_set_rtt()
8301 if (dev_info->wspecversion < 0x400) in ufshcd_set_rtt()
8306 dev_err(hba->dev, "failed reading bMaxNumOfRTT\n"); in ufshcd_set_rtt()
8314 rtt = min_t(int, dev_info->rtt_cap, host_rtt_cap); in ufshcd_set_rtt()
8321 dev_err(hba->dev, "failed writing bMaxNumOfRTT\n"); in ufshcd_set_rtt()
8328 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_fixup_dev_quirks()
8333 for (f = fixups; f->quirk; f++) { in ufshcd_fixup_dev_quirks()
8334 if ((f->wmanufacturerid == dev_info->wmanufacturerid || in ufshcd_fixup_dev_quirks()
8335 f->wmanufacturerid == UFS_ANY_VENDOR) && in ufshcd_fixup_dev_quirks()
8336 ((dev_info->model && in ufshcd_fixup_dev_quirks()
8337 STR_PRFX_EQUAL(f->model, dev_info->model)) || in ufshcd_fixup_dev_quirks()
8338 !strcmp(f->model, UFS_ANY_MODEL))) in ufshcd_fixup_dev_quirks()
8339 hba->dev_quirks |= f->quirk; in ufshcd_fixup_dev_quirks()
8361 if (ts64.tv_sec < hba->dev_info.rtc_time_baseline) { in ufshcd_update_rtc()
8362 dev_warn_once(hba->dev, "%s: Current time precedes previous setting!\n", __func__); in ufshcd_update_rtc()
8367 * The Absolute RTC mode has a 136-year limit, spanning from 2010 to 2146. If a time beyond in ufshcd_update_rtc()
8370 val = ts64.tv_sec - hba->dev_info.rtc_time_baseline; in ufshcd_update_rtc()
8381 dev_err(hba->dev, "%s: Failed to update rtc %d\n", __func__, err); in ufshcd_update_rtc()
8382 else if (hba->dev_info.rtc_type == UFS_RTC_RELATIVE) in ufshcd_update_rtc()
8383 hba->dev_info.rtc_time_baseline = ts64.tv_sec; in ufshcd_update_rtc()
8394 hba->ufshcd_state == UFSHCD_STATE_OPERATIONAL && in ufshcd_rtc_work()
8395 !hba->clk_gating.active_reqs) in ufshcd_rtc_work()
8398 if (ufshcd_is_ufs_dev_active(hba) && hba->dev_info.rtc_update_period) in ufshcd_rtc_work()
8399 schedule_delayed_work(&hba->ufs_rtc_update_work, in ufshcd_rtc_work()
8400 msecs_to_jiffies(hba->dev_info.rtc_update_period)); in ufshcd_rtc_work()
8406 struct ufs_dev_info *dev_info = &hba->dev_info; in ufs_init_rtc()
8409 dev_info->rtc_type = UFS_RTC_ABSOLUTE; in ufs_init_rtc()
8416 dev_info->rtc_time_baseline = mktime64(2010, 1, 1, 0, 0, 0) - in ufs_init_rtc()
8419 dev_info->rtc_type = UFS_RTC_RELATIVE; in ufs_init_rtc()
8420 dev_info->rtc_time_baseline = 0; in ufs_init_rtc()
8428 dev_info->rtc_update_period = 0; in ufs_init_rtc()
8436 struct ufs_dev_info *dev_info = &hba->dev_info; in ufs_get_device_desc()
8440 err = -ENOMEM; in ufs_get_device_desc()
8447 dev_err(hba->dev, "%s: Failed reading Device Desc. err = %d\n", in ufs_get_device_desc()
8456 dev_info->wmanufacturerid = desc_buf[DEVICE_DESC_PARAM_MANF_ID] << 8 | in ufs_get_device_desc()
8460 dev_info->wspecversion = desc_buf[DEVICE_DESC_PARAM_SPEC_VER] << 8 | in ufs_get_device_desc()
8462 dev_info->bqueuedepth = desc_buf[DEVICE_DESC_PARAM_Q_DPTH]; in ufs_get_device_desc()
8464 dev_info->rtt_cap = desc_buf[DEVICE_DESC_PARAM_RTT_CAP]; in ufs_get_device_desc()
8466 dev_info->hid_sup = get_unaligned_be32(desc_buf + in ufs_get_device_desc()
8473 &dev_info->model, SD_ASCII_STD); in ufs_get_device_desc()
8475 dev_err(hba->dev, "%s: Failed reading Product Name. err = %d\n", in ufs_get_device_desc()
8480 hba->luns_avail = desc_buf[DEVICE_DESC_PARAM_NUM_LU] + in ufs_get_device_desc()
8489 if (dev_info->wspecversion >= 0x410) { in ufs_get_device_desc()
8490 hba->critical_health_count = 0; in ufs_get_device_desc()
8511 struct ufs_dev_info *dev_info = &hba->dev_info; in ufs_put_device_desc()
8513 kfree(dev_info->model); in ufs_put_device_desc()
8514 dev_info->model = NULL; in ufs_put_device_desc()
8518 * ufshcd_quirk_tune_host_pa_tactivate - Ensures that host PA_TACTIVATE is
8520 * @hba: per-adapter instance
8526 * Return: zero on success, non-zero error value on failure.
8548 dev_err(hba->dev, "%s: invalid host PA_GRANULARITY %d", in ufshcd_quirk_tune_host_pa_tactivate()
8550 return -EINVAL; in ufshcd_quirk_tune_host_pa_tactivate()
8555 dev_err(hba->dev, "%s: invalid device PA_GRANULARITY %d", in ufshcd_quirk_tune_host_pa_tactivate()
8557 return -EINVAL; in ufshcd_quirk_tune_host_pa_tactivate()
8569 pa_tactivate_us = pa_tactivate * gran_to_us_table[granularity - 1]; in ufshcd_quirk_tune_host_pa_tactivate()
8571 gran_to_us_table[peer_granularity - 1]; in ufshcd_quirk_tune_host_pa_tactivate()
8577 gran_to_us_table[peer_granularity - 1]; in ufshcd_quirk_tune_host_pa_tactivate()
8588 * ufshcd_quirk_override_pa_h8time - Ensures proper adjustment of PA_HIBERN8TIME.
8589 * @hba: per-adapter instance
8602 dev_err(hba->dev, "Failed to get PA_HIBERN8TIME: %d\n", ret); in ufshcd_quirk_override_pa_h8time()
8609 dev_err(hba->dev, "Failed updating PA_HIBERN8TIME: %d\n", ret); in ufshcd_quirk_override_pa_h8time()
8616 if (hba->dev_quirks & UFS_DEVICE_QUIRK_PA_TACTIVATE) in ufshcd_tune_unipro_params()
8620 if (hba->dev_quirks & UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE) in ufshcd_tune_unipro_params()
8623 if (hba->dev_quirks & UFS_DEVICE_QUIRK_PA_HIBER8TIME) in ufshcd_tune_unipro_params()
8629 hba->ufs_stats.hibern8_exit_cnt = 0; in ufshcd_clear_dbg_ufs_stats()
8630 hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); in ufshcd_clear_dbg_ufs_stats()
8631 hba->req_abort_count = 0; in ufshcd_clear_dbg_ufs_stats()
8641 err = -ENOMEM; in ufshcd_device_geo_params_init()
8648 dev_err(hba->dev, "%s: Failed reading Geometry Desc. err = %d\n", in ufshcd_device_geo_params_init()
8654 hba->dev_info.max_lu_supported = 32; in ufshcd_device_geo_params_init()
8656 hba->dev_info.max_lu_supported = 8; in ufshcd_device_geo_params_init()
8694 hba->dev_ref_clk_freq = in ufshcd_parse_dev_ref_clk_freq()
8697 if (hba->dev_ref_clk_freq == REF_CLK_FREQ_INVAL) in ufshcd_parse_dev_ref_clk_freq()
8698 dev_err(hba->dev, in ufshcd_parse_dev_ref_clk_freq()
8706 u32 freq = hba->dev_ref_clk_freq; in ufshcd_set_dev_ref_clk()
8712 dev_err(hba->dev, "failed reading bRefClkFreq. err = %d\n", in ufshcd_set_dev_ref_clk()
8724 dev_err(hba->dev, "bRefClkFreq setting to %lu Hz failed\n", in ufshcd_set_dev_ref_clk()
8729 dev_dbg(hba->dev, "bRefClkFreq setting to %lu Hz succeeded\n", in ufshcd_set_dev_ref_clk()
8749 dev_err(hba->dev, "%s: Failed getting device info. err = %d\n", in ufshcd_device_params_init()
8760 hba->dev_info.f_power_on_wp_en = flag; in ufshcd_device_params_init()
8762 /* Probe maximum power mode co-supported by both UFS host and device */ in ufshcd_device_params_init()
8764 dev_err(hba->dev, in ufshcd_device_params_init()
8776 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_set_timestamp_attr()
8779 if (dev_info->wspecversion < 0x400) in ufshcd_set_timestamp_attr()
8788 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in ufshcd_set_timestamp_attr()
8790 upiu_data = (struct utp_upiu_query_v4_0 *)&request->upiu_req; in ufshcd_set_timestamp_attr()
8792 put_unaligned_be64(ktime_get_real_ns(), &upiu_data->osf3); in ufshcd_set_timestamp_attr()
8797 dev_err(hba->dev, "%s: failed to set timestamp %d\n", in ufshcd_set_timestamp_attr()
8804 * ufshcd_add_lus - probe and add UFS logical units
8805 * @hba: per-adapter instance
8820 memcpy(&hba->clk_scaling.saved_pwr_info, in ufshcd_add_lus()
8821 &hba->pwr_info, in ufshcd_add_lus()
8823 hba->clk_scaling.is_allowed = true; in ufshcd_add_lus()
8829 hba->clk_scaling.is_enabled = true; in ufshcd_add_lus()
8834 * The RTC update code accesses the hba->ufs_device_wlun->sdev_gendev in ufshcd_add_lus()
8838 schedule_delayed_work(&hba->ufs_rtc_update_work, in ufshcd_add_lus()
8842 scsi_scan_host(hba->host); in ufshcd_add_lus()
8848 /* SDB - Single Doorbell */
8854 dmam_free_coherent(hba->dev, ucdl_size, hba->ucdl_base_addr, in ufshcd_release_sdb_queue()
8855 hba->ucdl_dma_addr); in ufshcd_release_sdb_queue()
8858 dmam_free_coherent(hba->dev, utrdl_size, hba->utrdl_base_addr, in ufshcd_release_sdb_queue()
8859 hba->utrdl_dma_addr); in ufshcd_release_sdb_queue()
8861 devm_kfree(hba->dev, hba->lrb); in ufshcd_release_sdb_queue()
8867 int old_nutrs = hba->nutrs; in ufshcd_alloc_mcq()
8873 hba->nutrs = ret; in ufshcd_alloc_mcq()
8882 if (hba->nutrs != old_nutrs) { in ufshcd_alloc_mcq()
8894 hba->host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_alloc_mcq()
8895 hba->reserved_slot = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_alloc_mcq()
8899 hba->nutrs = old_nutrs; in ufshcd_alloc_mcq()
8909 hba->mcq_esi_enabled = !ret; in ufshcd_config_mcq()
8910 dev_info(hba->dev, "ESI %sconfigured\n", ret ? "is not " : ""); in ufshcd_config_mcq()
8913 if (hba->quirks & UFSHCD_QUIRK_MCQ_BROKEN_INTR) in ufshcd_config_mcq()
8917 ufshcd_mcq_config_mac(hba, hba->nutrs); in ufshcd_config_mcq()
8919 …dev_info(hba->dev, "MCQ configured, nr_queues=%d, io_queues=%d, read_queue=%d, poll_queues=%d, que… in ufshcd_config_mcq()
8920 hba->nr_hw_queues, hba->nr_queues[HCTX_TYPE_DEFAULT], in ufshcd_config_mcq()
8921 hba->nr_queues[HCTX_TYPE_READ], hba->nr_queues[HCTX_TYPE_POLL], in ufshcd_config_mcq()
8922 hba->nutrs); in ufshcd_config_mcq()
8937 if (!hba->max_pwr_info.is_valid) in ufshcd_post_device_init()
8944 if (hba->dev_ref_clk_freq != REF_CLK_FREQ_INVAL) in ufshcd_post_device_init()
8947 ret = ufshcd_config_pwr_mode(hba, &hba->max_pwr_info.info); in ufshcd_post_device_init()
8949 dev_err(hba->dev, "%s: Failed setting power mode, err = %d\n", in ufshcd_post_device_init()
8961 WARN_ON_ONCE(!hba->scsi_host_added); in ufshcd_device_init()
8963 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_device_init()
8969 if (hba->quirks & UFSHCD_QUIRK_SKIP_PH_CONFIGURATION) in ufshcd_device_init()
8979 if (hba->mcq_enabled && !init_dev_params) { in ufshcd_device_init()
9003 hba->quirks & UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH) { in ufshcd_device_init()
9013 * ufshcd_probe_hba - probe hba to detect device and initialize it
9014 * @hba: per-adapter instance
9017 * Execute link-startup and verify device initialization
9025 if (!hba->pm_op_in_progress && in ufshcd_probe_hba()
9026 (hba->quirks & UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH)) { in ufshcd_probe_hba()
9033 dev_err(hba->dev, "Host controller enable failed\n"); in ufshcd_probe_hba()
9055 /* Enable UFS Write Booster if supported */ in ufshcd_probe_hba()
9058 if (hba->ee_usr_mask) in ufshcd_probe_hba()
9066 * ufshcd_async_scan - asynchronous execution for probing hba
9076 down(&hba->host_sem); in ufshcd_async_scan()
9081 up(&hba->host_sem); in ufshcd_async_scan()
9089 pm_runtime_put_sync(hba->dev); in ufshcd_async_scan()
9092 dev_err(hba->dev, "%s failed: %d\n", __func__, ret); in ufshcd_async_scan()
9097 struct ufs_hba *hba = shost_priv(scmd->device->host); in ufshcd_eh_timed_out()
9099 if (!hba->system_suspending) { in ufshcd_eh_timed_out()
9111 dev_info(hba->dev, "%s() finished; outstanding_tasks = %#lx.\n", in ufshcd_eh_timed_out()
9112 __func__, hba->outstanding_tasks); in ufshcd_eh_timed_out()
9114 return scsi_host_busy(hba->host) ? SCSI_EH_RESET_TIMER : SCSI_EH_DONE; in ufshcd_eh_timed_out()
9148 .this_id = -1,
9169 * zero max_uA may cause unexpected behavior when regulator is in ufshcd_config_vreg_load()
9172 if (!vreg->max_uA) in ufshcd_config_vreg_load()
9175 ret = regulator_set_load(vreg->reg, ua); in ufshcd_config_vreg_load()
9178 __func__, vreg->name, ua, ret); in ufshcd_config_vreg_load()
9187 return ufshcd_config_vreg_load(hba->dev, vreg, UFS_VREG_LPM_LOAD_UA); in ufshcd_config_vreg_lpm()
9196 return ufshcd_config_vreg_load(hba->dev, vreg, vreg->max_uA); in ufshcd_config_vreg_hpm()
9202 if (regulator_count_voltages(vreg->reg) <= 0) in ufshcd_config_vreg()
9205 return ufshcd_config_vreg_load(dev, vreg, on ? vreg->max_uA : 0); in ufshcd_config_vreg()
9212 if (!vreg || vreg->enabled) in ufshcd_enable_vreg()
9217 ret = regulator_enable(vreg->reg); in ufshcd_enable_vreg()
9220 vreg->enabled = true; in ufshcd_enable_vreg()
9223 __func__, vreg->name, ret); in ufshcd_enable_vreg()
9232 if (!vreg || !vreg->enabled || vreg->always_on) in ufshcd_disable_vreg()
9235 ret = regulator_disable(vreg->reg); in ufshcd_disable_vreg()
9240 vreg->enabled = false; in ufshcd_disable_vreg()
9243 __func__, vreg->name, ret); in ufshcd_disable_vreg()
9252 struct device *dev = hba->dev; in ufshcd_setup_vreg()
9253 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_setup_vreg()
9255 ret = ufshcd_toggle_vreg(dev, info->vcc, on); in ufshcd_setup_vreg()
9259 ret = ufshcd_toggle_vreg(dev, info->vccq, on); in ufshcd_setup_vreg()
9263 ret = ufshcd_toggle_vreg(dev, info->vccq2, on); in ufshcd_setup_vreg()
9267 ufshcd_toggle_vreg(dev, info->vccq2, false); in ufshcd_setup_vreg()
9268 ufshcd_toggle_vreg(dev, info->vccq, false); in ufshcd_setup_vreg()
9269 ufshcd_toggle_vreg(dev, info->vcc, false); in ufshcd_setup_vreg()
9276 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_setup_hba_vreg()
9278 return ufshcd_toggle_vreg(hba->dev, info->vdd_hba, on); in ufshcd_setup_hba_vreg()
9288 vreg->reg = devm_regulator_get(dev, vreg->name); in ufshcd_get_vreg()
9289 if (IS_ERR(vreg->reg)) { in ufshcd_get_vreg()
9290 ret = PTR_ERR(vreg->reg); in ufshcd_get_vreg()
9292 __func__, vreg->name, ret); in ufshcd_get_vreg()
9302 struct device *dev = hba->dev; in ufshcd_init_vreg()
9303 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_init_vreg()
9305 ret = ufshcd_get_vreg(dev, info->vcc); in ufshcd_init_vreg()
9309 ret = ufshcd_get_vreg(dev, info->vccq); in ufshcd_init_vreg()
9311 ret = ufshcd_get_vreg(dev, info->vccq2); in ufshcd_init_vreg()
9318 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_init_hba_vreg()
9320 return ufshcd_get_vreg(hba->dev, info->vdd_hba); in ufshcd_init_hba_vreg()
9327 struct list_head *head = &hba->clk_list_head; in ufshcd_setup_clocks()
9339 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_setup_clocks()
9345 clki->keep_link_active) in ufshcd_setup_clocks()
9348 clk_state_changed = on ^ clki->enabled; in ufshcd_setup_clocks()
9349 if (on && !clki->enabled) { in ufshcd_setup_clocks()
9350 ret = clk_prepare_enable(clki->clk); in ufshcd_setup_clocks()
9352 dev_err(hba->dev, "%s: %s prepare enable failed, %d\n", in ufshcd_setup_clocks()
9353 __func__, clki->name, ret); in ufshcd_setup_clocks()
9356 } else if (!on && clki->enabled) { in ufshcd_setup_clocks()
9357 clk_disable_unprepare(clki->clk); in ufshcd_setup_clocks()
9359 clki->enabled = on; in ufshcd_setup_clocks()
9360 dev_dbg(hba->dev, "%s: clk: %s %sabled\n", __func__, in ufshcd_setup_clocks()
9361 clki->name, on ? "en" : "dis"); in ufshcd_setup_clocks()
9374 if (!IS_ERR_OR_NULL(clki->clk) && clki->enabled) in ufshcd_setup_clocks()
9375 clk_disable_unprepare(clki->clk); in ufshcd_setup_clocks()
9377 } else if (!ret && on && hba->clk_gating.is_initialized) { in ufshcd_setup_clocks()
9378 scoped_guard(spinlock_irqsave, &hba->clk_gating.lock) in ufshcd_setup_clocks()
9379 hba->clk_gating.state = CLKS_ON; in ufshcd_setup_clocks()
9381 hba->clk_gating.state); in ufshcd_setup_clocks()
9394 int ret = device_property_read_u32(hba->dev, "ref-clk-freq", &freq); in ufshcd_parse_ref_clk_property()
9397 dev_dbg(hba->dev, "Cannot query 'ref-clk-freq' property = %d", ret); in ufshcd_parse_ref_clk_property()
9408 struct device *dev = hba->dev; in ufshcd_init_clocks()
9409 struct list_head *head = &hba->clk_list_head; in ufshcd_init_clocks()
9415 if (!clki->name) in ufshcd_init_clocks()
9418 clki->clk = devm_clk_get(dev, clki->name); in ufshcd_init_clocks()
9419 if (IS_ERR(clki->clk)) { in ufshcd_init_clocks()
9420 ret = PTR_ERR(clki->clk); in ufshcd_init_clocks()
9422 __func__, clki->name, ret); in ufshcd_init_clocks()
9431 if (!strcmp(clki->name, "ref_clk")) in ufshcd_init_clocks()
9432 ufshcd_parse_dev_ref_clk_freq(hba, clki->clk); in ufshcd_init_clocks()
9434 if (clki->max_freq) { in ufshcd_init_clocks()
9435 ret = clk_set_rate(clki->clk, clki->max_freq); in ufshcd_init_clocks()
9437 dev_err(hba->dev, "%s: %s clk set rate(%dHz) failed, %d\n", in ufshcd_init_clocks()
9438 __func__, clki->name, in ufshcd_init_clocks()
9439 clki->max_freq, ret); in ufshcd_init_clocks()
9442 clki->curr_freq = clki->max_freq; in ufshcd_init_clocks()
9445 clki->name, clk_get_rate(clki->clk)); in ufshcd_init_clocks()
9449 if (hba->use_pm_opp) { in ufshcd_init_clocks()
9452 dev_err(hba->dev, "%s: failed to set OPP: %d", __func__, in ufshcd_init_clocks()
9466 if (!hba->vops) in ufshcd_variant_hba_init()
9471 dev_err_probe(hba->dev, err, in ufshcd_variant_hba_init()
9480 if (!hba->vops) in ufshcd_variant_hba_exit()
9509 if (hba->dev_ref_clk_freq == REF_CLK_FREQ_INVAL) in ufshcd_hba_init()
9510 hba->dev_ref_clk_freq = ufshcd_parse_ref_clk_property(hba); in ufshcd_hba_init()
9531 hba->is_powered = true; in ufshcd_hba_init()
9546 if (hba->is_powered) { in ufshcd_hba_exit()
9550 if (hba->eh_wq) in ufshcd_hba_exit()
9551 destroy_workqueue(hba->eh_wq); in ufshcd_hba_exit()
9557 hba->is_powered = false; in ufshcd_hba_exit()
9589 * ufshcd_set_dev_pwr_mode - sends START STOP UNIT command to set device
9605 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_set_dev_pwr_mode()
9606 sdp = hba->ufs_device_wlun; in ufshcd_set_dev_pwr_mode()
9610 ret = -ENODEV; in ufshcd_set_dev_pwr_mode()
9611 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_set_dev_pwr_mode()
9617 * If scsi commands fail, the scsi mid-layer schedules scsi error- in ufshcd_set_dev_pwr_mode()
9622 hba->host->eh_noresume = 1; in ufshcd_set_dev_pwr_mode()
9637 ret = -EIO; in ufshcd_set_dev_pwr_mode()
9640 hba->curr_dev_pwr_mode = pwr_mode; in ufshcd_set_dev_pwr_mode()
9644 hba->host->eh_noresume = 0; in ufshcd_set_dev_pwr_mode()
9654 if (req_link_state == hba->uic_link_state) in ufshcd_link_state_transition()
9662 dev_err(hba->dev, "%s: hibern8 enter failed %d\n", in ufshcd_link_state_transition()
9673 (!check_for_bkops || !hba->auto_bkops_enabled)) { in ufshcd_link_state_transition()
9686 dev_err(hba->dev, "%s: hibern8 enter failed %d\n", in ufshcd_link_state_transition()
9717 hba->dev_quirks & UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM) in ufshcd_vreg_set_lpm()
9732 * If Write Booster is enabled and the device needs to flush the WB in ufshcd_vreg_set_lpm()
9736 !hba->dev_info.is_lu_power_on_wp) { in ufshcd_vreg_set_lpm()
9740 ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, false); in ufshcd_vreg_set_lpm()
9743 ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq); in ufshcd_vreg_set_lpm()
9744 ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq2); in ufshcd_vreg_set_lpm()
9749 * Some UFS devices require delay after VCC power rail is turned-off. in ufshcd_vreg_set_lpm()
9751 if (vcc_off && hba->vreg_info.vcc && in ufshcd_vreg_set_lpm()
9752 hba->dev_quirks & UFS_DEVICE_QUIRK_DELAY_AFTER_LPM) in ufshcd_vreg_set_lpm()
9762 !hba->dev_info.is_lu_power_on_wp) { in ufshcd_vreg_set_hpm()
9766 ret = ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq); in ufshcd_vreg_set_hpm()
9769 ret = ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq2); in ufshcd_vreg_set_hpm()
9773 ret = ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, true); in ufshcd_vreg_set_hpm()
9778 ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq); in ufshcd_vreg_set_hpm()
9780 ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, false); in ufshcd_vreg_set_hpm()
9806 hba->pm_op_in_progress = true; in __ufshcd_wl_suspend()
9809 hba->rpm_lvl : hba->spm_lvl; in __ufshcd_wl_suspend()
9822 hba->clk_gating.is_suspended = true; in __ufshcd_wl_suspend()
9832 if ((req_dev_pwr_mode == hba->curr_dev_pwr_mode) && in __ufshcd_wl_suspend()
9833 (req_link_state == hba->uic_link_state)) in __ufshcd_wl_suspend()
9841 ret = -EBUSY; in __ufshcd_wl_suspend()
9860 ret = -EBUSY; in __ufshcd_wl_suspend()
9872 hba->dev_info.b_rpm_dev_flush_capable = in __ufshcd_wl_suspend()
9873 hba->auto_bkops_enabled || in __ufshcd_wl_suspend()
9880 flush_work(&hba->eeh_work); in __ufshcd_wl_suspend()
9886 if (req_dev_pwr_mode != hba->curr_dev_pwr_mode) { in __ufshcd_wl_suspend()
9891 if (!hba->dev_info.b_rpm_dev_flush_capable) { in __ufshcd_wl_suspend()
9900 ret = -EBUSY; in __ufshcd_wl_suspend()
9920 ret = -EBUSY; in __ufshcd_wl_suspend()
9935 cancel_delayed_work_sync(&hba->ufs_rtc_update_work); in __ufshcd_wl_suspend()
9964 hba->dev_info.b_rpm_dev_flush_capable = false; in __ufshcd_wl_suspend()
9966 if (hba->dev_info.b_rpm_dev_flush_capable) { in __ufshcd_wl_suspend()
9967 schedule_delayed_work(&hba->rpm_dev_flush_recheck_work, in __ufshcd_wl_suspend()
9973 hba->clk_gating.is_suspended = false; in __ufshcd_wl_suspend()
9976 hba->pm_op_in_progress = false; in __ufshcd_wl_suspend()
9984 enum uic_link_state old_link_state = hba->uic_link_state; in __ufshcd_wl_resume()
9986 hba->pm_op_in_progress = true; in __ufshcd_wl_resume()
10005 dev_err(hba->dev, "%s: hibern8 exit failed %d\n", in __ufshcd_wl_resume()
10030 schedule_delayed_work(&hba->ufs_rtc_update_work, in __ufshcd_wl_resume()
10039 * keep auto-bkops enabled or else disable it. in __ufshcd_wl_resume()
10043 if (hba->ee_usr_mask) in __ufshcd_wl_resume()
10049 if (hba->dev_info.b_rpm_dev_flush_capable) { in __ufshcd_wl_resume()
10050 hba->dev_info.b_rpm_dev_flush_capable = false; in __ufshcd_wl_resume()
10051 cancel_delayed_work(&hba->rpm_dev_flush_recheck_work); in __ufshcd_wl_resume()
10066 hba->clk_gating.is_suspended = false; in __ufshcd_wl_resume()
10068 hba->pm_op_in_progress = false; in __ufshcd_wl_resume()
10079 hba = shost_priv(sdev->host); in ufshcd_wl_runtime_suspend()
10083 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_runtime_suspend()
10087 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_runtime_suspend()
10099 hba = shost_priv(sdev->host); in ufshcd_wl_runtime_resume()
10103 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_runtime_resume()
10107 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_runtime_resume()
10121 hba = shost_priv(sdev->host); in ufshcd_wl_suspend()
10122 down(&hba->host_sem); in ufshcd_wl_suspend()
10123 hba->system_suspending = true; in ufshcd_wl_suspend()
10130 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_suspend()
10131 up(&hba->host_sem); in ufshcd_wl_suspend()
10136 hba->is_sys_suspended = true; in ufshcd_wl_suspend()
10139 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_suspend()
10151 hba = shost_priv(sdev->host); in ufshcd_wl_resume()
10158 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_resume()
10162 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_resume()
10164 hba->is_sys_suspended = false; in ufshcd_wl_resume()
10165 hba->system_suspending = false; in ufshcd_wl_resume()
10166 up(&hba->host_sem); in ufshcd_wl_resume()
10172 * ufshcd_suspend - helper function for suspend operations
10176 * and set vreg and hba-vreg in lpm mode.
10184 if (!hba->is_powered) in ufshcd_suspend()
10197 hba->clk_gating.state = CLKS_OFF; in ufshcd_suspend()
10199 hba->clk_gating.state); in ufshcd_suspend()
10211 * ufshcd_resume - helper function for resume operations
10217 * Return: 0 for success and non-zero for failure.
10223 if (!hba->is_powered) in ufshcd_resume()
10252 * ufshcd_system_suspend - system suspend callback
10258 * Return: 0 for success and non-zero for failure.
10266 if (pm_runtime_suspended(hba->dev)) in ufshcd_system_suspend()
10273 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_system_suspend()
10279 * ufshcd_system_resume - system resume callback
10285 * Return: 0 for success and non-zero for failure.
10293 if (pm_runtime_suspended(hba->dev)) in ufshcd_system_resume()
10301 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_system_resume()
10310 * ufshcd_runtime_suspend - runtime suspend callback
10315 * Return: 0 for success and non-zero for failure.
10327 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_runtime_suspend()
10333 * ufshcd_runtime_resume - runtime resume routine
10354 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_runtime_resume()
10363 struct ufs_hba *hba = shost_priv(sdev->host); in ufshcd_wl_shutdown()
10365 down(&hba->host_sem); in ufshcd_wl_shutdown()
10366 hba->shutting_down = true; in ufshcd_wl_shutdown()
10367 up(&hba->host_sem); in ufshcd_wl_shutdown()
10372 shost_for_each_device(sdev, hba->host) { in ufshcd_wl_shutdown()
10373 if (sdev == hba->ufs_device_wlun) in ufshcd_wl_shutdown()
10375 mutex_lock(&sdev->state_mutex); in ufshcd_wl_shutdown()
10377 mutex_unlock(&sdev->state_mutex); in ufshcd_wl_shutdown()
10388 hba->is_powered = false; in ufshcd_wl_shutdown()
10392 * ufshcd_remove - de-allocate SCSI host and host memory space
10398 if (hba->ufs_device_wlun) in ufshcd_remove()
10402 ufs_sysfs_remove_nodes(hba->dev); in ufshcd_remove()
10403 cancel_delayed_work_sync(&hba->ufs_rtc_update_work); in ufshcd_remove()
10404 blk_mq_destroy_queue(hba->tmf_queue); in ufshcd_remove()
10405 blk_put_queue(hba->tmf_queue); in ufshcd_remove()
10406 blk_mq_free_tag_set(&hba->tmf_tag_set); in ufshcd_remove()
10407 if (hba->scsi_host_added) in ufshcd_remove()
10408 scsi_remove_host(hba->host); in ufshcd_remove()
10410 ufshcd_disable_intr(hba, hba->intr_mask); in ufshcd_remove()
10436 ufshcd_writel(hba, lower_32_bits(hba->utrdl_dma_addr), in ufshcd_system_restore()
10438 ufshcd_writel(hba, upper_32_bits(hba->utrdl_dma_addr), in ufshcd_system_restore()
10440 ufshcd_writel(hba, lower_32_bits(hba->utmrdl_dma_addr), in ufshcd_system_restore()
10442 ufshcd_writel(hba, upper_32_bits(hba->utmrdl_dma_addr), in ufshcd_system_restore()
10464 * ufshcd_set_dma_mask - Set dma mask based on the controller
10468 * Return: 0 for success, non-zero for failure.
10472 if (hba->vops && hba->vops->set_dma_mask) in ufshcd_set_dma_mask()
10473 return hba->vops->set_dma_mask(hba); in ufshcd_set_dma_mask()
10474 if (hba->capabilities & MASK_64_ADDRESSING_SUPPORT) { in ufshcd_set_dma_mask()
10475 if (!dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(64))) in ufshcd_set_dma_mask()
10478 return dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(32)); in ufshcd_set_dma_mask()
10482 * ufshcd_devres_release - devres cleanup handler, invoked during release of
10483 * hba->dev
10492 * ufshcd_alloc_host - allocate Host Bus Adapter (HBA)
10496 * Return: 0 on success, non-zero value on failure.
10511 err = -ENODEV; in ufshcd_alloc_host()
10519 err = -ENOMEM; in ufshcd_alloc_host()
10529 host->nr_maps = HCTX_TYPE_POLL + 1; in ufshcd_alloc_host()
10531 hba->host = host; in ufshcd_alloc_host()
10532 hba->dev = dev; in ufshcd_alloc_host()
10533 hba->dev_ref_clk_freq = REF_CLK_FREQ_INVAL; in ufshcd_alloc_host()
10534 hba->nop_out_timeout = NOP_OUT_TIMEOUT; in ufshcd_alloc_host()
10536 INIT_LIST_HEAD(&hba->clk_list_head); in ufshcd_alloc_host()
10537 spin_lock_init(&hba->outstanding_lock); in ufshcd_alloc_host()
10571 dev_err(hba->dev, "MCQ mode is disabled, err=%d\n", in ufshcd_add_scsi_host()
10575 if (!is_mcq_supported(hba) && !hba->lsdb_sup) { in ufshcd_add_scsi_host()
10576 dev_err(hba->dev, in ufshcd_add_scsi_host()
10579 return -EINVAL; in ufshcd_add_scsi_host()
10582 err = scsi_add_host(hba->host, hba->dev); in ufshcd_add_scsi_host()
10584 dev_err(hba->dev, "scsi_add_host failed\n"); in ufshcd_add_scsi_host()
10587 hba->scsi_host_added = true; in ufshcd_add_scsi_host()
10589 hba->tmf_tag_set = (struct blk_mq_tag_set) { in ufshcd_add_scsi_host()
10591 .queue_depth = hba->nutmrs, in ufshcd_add_scsi_host()
10594 err = blk_mq_alloc_tag_set(&hba->tmf_tag_set); in ufshcd_add_scsi_host()
10597 hba->tmf_queue = blk_mq_alloc_queue(&hba->tmf_tag_set, NULL, NULL); in ufshcd_add_scsi_host()
10598 if (IS_ERR(hba->tmf_queue)) { in ufshcd_add_scsi_host()
10599 err = PTR_ERR(hba->tmf_queue); in ufshcd_add_scsi_host()
10602 hba->tmf_rqs = devm_kcalloc(hba->dev, hba->nutmrs, in ufshcd_add_scsi_host()
10603 sizeof(*hba->tmf_rqs), GFP_KERNEL); in ufshcd_add_scsi_host()
10604 if (!hba->tmf_rqs) { in ufshcd_add_scsi_host()
10605 err = -ENOMEM; in ufshcd_add_scsi_host()
10612 blk_mq_destroy_queue(hba->tmf_queue); in ufshcd_add_scsi_host()
10613 blk_put_queue(hba->tmf_queue); in ufshcd_add_scsi_host()
10616 blk_mq_free_tag_set(&hba->tmf_tag_set); in ufshcd_add_scsi_host()
10619 if (hba->scsi_host_added) in ufshcd_add_scsi_host()
10620 scsi_remove_host(hba->host); in ufshcd_add_scsi_host()
10626 * ufshcd_init - Driver initialization routine
10627 * @hba: per-adapter instance
10631 * Return: 0 on success, non-zero value on failure.
10636 struct Scsi_Host *host = hba->host; in ufshcd_init()
10637 struct device *dev = hba->dev; in ufshcd_init()
10647 dev_err(hba->dev, in ufshcd_init()
10649 err = -ENODEV; in ufshcd_init()
10653 hba->mmio_base = mmio_base; in ufshcd_init()
10654 hba->irq = irq; in ufshcd_init()
10655 hba->vps = &ufs_hba_vps; in ufshcd_init()
10661 spin_lock_init(&hba->clk_gating.lock); in ufshcd_init()
10671 hba->rpm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( in ufshcd_init()
10674 hba->spm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( in ufshcd_init()
10678 init_completion(&hba->dev_cmd.complete); in ufshcd_init()
10690 hba->ufs_version = ufshcd_get_ufs_version(hba); in ufshcd_init()
10693 hba->intr_mask = ufshcd_get_intr_mask(hba); in ufshcd_init()
10697 dev_err(hba->dev, "set dma mask failed\n"); in ufshcd_init()
10704 dev_err(hba->dev, "Memory allocation failed\n"); in ufshcd_init()
10711 host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_init()
10712 host->cmd_per_lun = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_init()
10713 host->max_id = UFSHCD_MAX_ID; in ufshcd_init()
10714 host->max_lun = UFS_MAX_LUNS; in ufshcd_init()
10715 host->max_channel = UFSHCD_MAX_CHANNEL; in ufshcd_init()
10716 host->unique_id = host->host_no; in ufshcd_init()
10717 host->max_cmd_len = UFS_CDB_SIZE; in ufshcd_init()
10718 host->queuecommand_may_block = !!(hba->caps & UFSHCD_CAP_CLK_GATING); in ufshcd_init()
10721 if (host->rpm_autosuspend_delay == 0) in ufshcd_init()
10722 host->rpm_autosuspend_delay = RPM_AUTOSUSPEND_DELAY_MS; in ufshcd_init()
10724 hba->max_pwr_info.is_valid = false; in ufshcd_init()
10727 hba->eh_wq = alloc_ordered_workqueue("ufs_eh_wq_%d", WQ_MEM_RECLAIM, in ufshcd_init()
10728 hba->host->host_no); in ufshcd_init()
10729 if (!hba->eh_wq) { in ufshcd_init()
10730 dev_err(hba->dev, "%s: failed to create eh workqueue\n", in ufshcd_init()
10732 err = -ENOMEM; in ufshcd_init()
10735 INIT_WORK(&hba->eh_work, ufshcd_err_handler); in ufshcd_init()
10736 INIT_WORK(&hba->eeh_work, ufshcd_exception_event_handler); in ufshcd_init()
10738 sema_init(&hba->host_sem, 1); in ufshcd_init()
10741 mutex_init(&hba->uic_cmd_mutex); in ufshcd_init()
10744 mutex_init(&hba->dev_cmd.lock); in ufshcd_init()
10747 mutex_init(&hba->ee_ctrl_mutex); in ufshcd_init()
10749 mutex_init(&hba->wb_mutex); in ufshcd_init()
10750 init_rwsem(&hba->clk_scaling_lock); in ufshcd_init()
10774 dev_err(hba->dev, "request irq failed\n"); in ufshcd_init()
10777 hba->is_irq_enabled = true; in ufshcd_init()
10788 dev_err(hba->dev, "Host controller enable failed\n"); in ufshcd_init()
10794 INIT_DELAYED_WORK(&hba->rpm_dev_flush_recheck_work, ufshcd_rpm_dev_flush_recheck_work); in ufshcd_init()
10795 INIT_DELAYED_WORK(&hba->ufs_rtc_update_work, ufshcd_rtc_work); in ufshcd_init()
10797 /* Set the default auto-hiberate idle timer value to 150 ms */ in ufshcd_init()
10798 if (ufshcd_is_auto_hibern8_supported(hba) && !hba->ahit) { in ufshcd_init()
10799 hba->ahit = FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 150) | in ufshcd_init()
10807 * We are assuming that device wasn't put in sleep/power-down in ufshcd_init()
10817 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_init()
10823 if (hba->quirks & UFSHCD_QUIRK_SKIP_PH_CONFIGURATION) in ufshcd_init()
10858 ufs_sysfs_add_nodes(hba->dev); in ufshcd_init()
10865 hba->is_irq_enabled = false; in ufshcd_init()
10876 if (hba->complete_put) { in ufshcd_resume_complete()
10878 hba->complete_put = false; in ufshcd_resume_complete()
10885 struct device *dev = &hba->ufs_device_wlun->sdev_gendev; in ufshcd_rpm_ok_for_spm()
10891 spin_lock_irqsave(&dev->power.lock, flags); in ufshcd_rpm_ok_for_spm()
10892 dev_pwr_mode = ufs_get_pm_lvl_to_dev_pwr_mode(hba->spm_lvl); in ufshcd_rpm_ok_for_spm()
10893 link_state = ufs_get_pm_lvl_to_link_pwr_state(hba->spm_lvl); in ufshcd_rpm_ok_for_spm()
10895 hba->curr_dev_pwr_mode == dev_pwr_mode && in ufshcd_rpm_ok_for_spm()
10896 hba->uic_link_state == link_state && in ufshcd_rpm_ok_for_spm()
10897 !hba->dev_info.b_rpm_dev_flush_capable; in ufshcd_rpm_ok_for_spm()
10898 spin_unlock_irqrestore(&dev->power.lock, flags); in ufshcd_rpm_ok_for_spm()
10909 * SCSI assumes that runtime-pm and system-pm for scsi drivers in __ufshcd_suspend_prepare()
10910 * are same. And it doesn't wake up the device for system-suspend in __ufshcd_suspend_prepare()
10914 if (hba->ufs_device_wlun) { in __ufshcd_suspend_prepare()
10924 if (ret < 0 && ret != -EACCES) { in __ufshcd_suspend_prepare()
10929 hba->complete_put = true; in __ufshcd_suspend_prepare()
10945 struct ufs_hba *hba = shost_priv(sdev->host); in ufshcd_wl_poweroff()
10957 return -ENODEV; in ufshcd_wl_probe()
10959 blk_pm_runtime_init(sdev->request_queue, dev); in ufshcd_wl_probe()
10987 * gcc compilers before version 10 cannot do constant-folding for in ufshcd_check_header_layout()
10988 * sub-byte bitfields. Hence skip the layout checks for gcc 9 and in ufshcd_check_header_layout()
11032 * ufs_dev_wlun_template - describes ufs device wlun
11033 * ufs-device wlun - used to send pm commands
11034 * All luns are consumers of ufs-device wlun.
11038 * With ufs design, SSU should be sent to ufs-device wlun.