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"
77 /* maximum number of link-startup retries */
115 return hba->mcq_sup && use_mcq_mode; in is_mcq_supported()
119 …mode, "Control MCQ mode for controllers starting from UFSHCI 4.0. 1 - enable MCQ, 0 - disable MCQ.…
162 return -EINVAL; in ufshcd_dump_regs()
166 return -ENOMEM; in ufshcd_dump_regs()
213 ((h)->eh_flags |= UFSHCD_EH_IN_PROGRESS)
215 ((h)->eh_flags & UFSHCD_EH_IN_PROGRESS)
217 ((h)->eh_flags &= ~UFSHCD_EH_IN_PROGRESS)
263 return hba->outstanding_tasks || hba->active_uic_cmd || in ufshcd_has_pending_tasks()
264 hba->uic_async_done; in ufshcd_has_pending_tasks()
269 return scsi_host_busy(hba->host) || ufshcd_has_pending_tasks(hba); in ufshcd_is_ufs_dev_busy()
330 if (!hba->is_irq_enabled) { in ufshcd_enable_irq()
331 enable_irq(hba->irq); in ufshcd_enable_irq()
332 hba->is_irq_enabled = true; in ufshcd_enable_irq()
339 if (hba->is_irq_enabled) { in ufshcd_disable_irq()
340 disable_irq(hba->irq); in ufshcd_disable_irq()
341 hba->is_irq_enabled = false; in ufshcd_disable_irq()
362 struct utp_upiu_req *rq = hba->lrb[tag].ucd_req_ptr; in ufshcd_add_cmd_upiu_trace()
369 header = &rq->header; in ufshcd_add_cmd_upiu_trace()
371 header = &hba->lrb[tag].ucd_rsp_ptr->header; in ufshcd_add_cmd_upiu_trace()
373 trace_ufshcd_upiu(hba, str_t, header, &rq->sc.cdb, in ufshcd_add_cmd_upiu_trace()
384 trace_ufshcd_upiu(hba, str_t, &rq_rsp->header, in ufshcd_add_query_upiu_trace()
385 &rq_rsp->qr, UFS_TSF_OSF); in ufshcd_add_query_upiu_trace()
391 struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[tag]; in ufshcd_add_tm_upiu_trace()
398 &descp->upiu_req.req_header, in ufshcd_add_tm_upiu_trace()
399 &descp->upiu_req.input_param1, in ufshcd_add_tm_upiu_trace()
403 &descp->upiu_rsp.rsp_header, in ufshcd_add_tm_upiu_trace()
404 &descp->upiu_rsp.output_param1, in ufshcd_add_tm_upiu_trace()
418 cmd = ucmd->command; in ufshcd_add_uic_command_trace()
435 int hwq_id = -1; in ufshcd_add_command_trace()
436 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_add_command_trace()
437 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_add_command_trace()
439 int transfer_len = -1; in ufshcd_add_command_trace()
449 opcode = cmd->cmnd[0]; in ufshcd_add_command_trace()
456 be32_to_cpu(lrbp->ucd_req_ptr->sc.exp_data_transfer_len); in ufshcd_add_command_trace()
459 group_id = lrbp->cmd->cmnd[6]; in ufshcd_add_command_trace()
470 if (hba->mcq_enabled) { in ufshcd_add_command_trace()
473 hwq_id = hwq->id; in ufshcd_add_command_trace()
477 trace_ufshcd_command(cmd->device, hba, str_t, tag, doorbell, hwq_id, in ufshcd_add_command_trace()
484 struct list_head *head = &hba->clk_list_head; in ufshcd_print_clk_freqs()
490 if (!IS_ERR_OR_NULL(clki->clk) && clki->min_freq && in ufshcd_print_clk_freqs()
491 clki->max_freq) in ufshcd_print_clk_freqs()
492 dev_err(hba->dev, "clk: %s, rate: %u\n", in ufshcd_print_clk_freqs()
493 clki->name, clki->curr_freq); in ufshcd_print_clk_freqs()
507 e = &hba->ufs_stats.event[id]; in ufshcd_print_evt()
510 int p = (i + e->pos) % UFS_EVENT_HIST_LENGTH; in ufshcd_print_evt()
512 if (e->tstamp[p] == 0) in ufshcd_print_evt()
514 dev_err(hba->dev, "%s[%d] = 0x%x at %lld us\n", err_name, p, in ufshcd_print_evt()
515 e->val[p], div_u64(e->tstamp[p], 1000)); in ufshcd_print_evt()
520 dev_err(hba->dev, "No record of %s\n", err_name); in ufshcd_print_evt()
522 dev_err(hba->dev, "%s: total cnt=%llu\n", err_name, e->cnt); in ufshcd_print_evt()
558 lrbp = &hba->lrb[tag]; in ufshcd_print_tr()
560 dev_err(hba->dev, "UPIU[%d] - issue time %lld us\n", in ufshcd_print_tr()
561 tag, div_u64(lrbp->issue_time_stamp_local_clock, 1000)); in ufshcd_print_tr()
562 dev_err(hba->dev, "UPIU[%d] - complete time %lld us\n", in ufshcd_print_tr()
563 tag, div_u64(lrbp->compl_time_stamp_local_clock, 1000)); in ufshcd_print_tr()
564 dev_err(hba->dev, in ufshcd_print_tr()
565 "UPIU[%d] - Transfer Request Descriptor phys@0x%llx\n", in ufshcd_print_tr()
566 tag, (u64)lrbp->utrd_dma_addr); in ufshcd_print_tr()
568 ufshcd_hex_dump("UPIU TRD: ", lrbp->utr_descriptor_ptr, in ufshcd_print_tr()
570 dev_err(hba->dev, "UPIU[%d] - Request UPIU phys@0x%llx\n", tag, in ufshcd_print_tr()
571 (u64)lrbp->ucd_req_dma_addr); in ufshcd_print_tr()
572 ufshcd_hex_dump("UPIU REQ: ", lrbp->ucd_req_ptr, in ufshcd_print_tr()
574 dev_err(hba->dev, "UPIU[%d] - Response UPIU phys@0x%llx\n", tag, in ufshcd_print_tr()
575 (u64)lrbp->ucd_rsp_dma_addr); in ufshcd_print_tr()
576 ufshcd_hex_dump("UPIU RSP: ", lrbp->ucd_rsp_ptr, in ufshcd_print_tr()
580 lrbp->utr_descriptor_ptr->prd_table_length); in ufshcd_print_tr()
581 if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) in ufshcd_print_tr()
584 dev_err(hba->dev, in ufshcd_print_tr()
585 "UPIU[%d] - PRDT - %d entries phys@0x%llx\n", in ufshcd_print_tr()
587 (u64)lrbp->ucd_prdt_dma_addr); in ufshcd_print_tr()
590 ufshcd_hex_dump("UPIU PRDT: ", lrbp->ucd_prdt_ptr, in ufshcd_print_tr()
596 struct scsi_device *sdev = req->q->queuedata; in ufshcd_print_tr_iter()
597 struct Scsi_Host *shost = sdev->host; in ufshcd_print_tr_iter()
600 ufshcd_print_tr(hba, req->tag, *(bool *)priv); in ufshcd_print_tr_iter()
606 * ufshcd_print_trs_all - print trs for all started requests.
607 * @hba: per-adapter instance.
612 blk_mq_tagset_busy_iter(&hba->host->tag_set, ufshcd_print_tr_iter, &pr_prdt); in ufshcd_print_trs_all()
619 for_each_set_bit(tag, &bitmap, hba->nutmrs) { in ufshcd_print_tmrs()
620 struct utp_task_req_desc *tmrdp = &hba->utmrdl_base_addr[tag]; in ufshcd_print_tmrs()
622 dev_err(hba->dev, "TM[%d] - Task Management Header\n", tag); in ufshcd_print_tmrs()
629 const struct scsi_device *sdev_ufs = hba->ufs_device_wlun; in ufshcd_print_host_state()
631 dev_err(hba->dev, "UFS Host state=%d\n", hba->ufshcd_state); in ufshcd_print_host_state()
632 dev_err(hba->dev, "%d outstanding reqs, tasks=0x%lx\n", in ufshcd_print_host_state()
633 scsi_host_busy(hba->host), hba->outstanding_tasks); in ufshcd_print_host_state()
634 dev_err(hba->dev, "saved_err=0x%x, saved_uic_err=0x%x\n", in ufshcd_print_host_state()
635 hba->saved_err, hba->saved_uic_err); in ufshcd_print_host_state()
636 dev_err(hba->dev, "Device power mode=%d, UIC link state=%d\n", in ufshcd_print_host_state()
637 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_print_host_state()
638 dev_err(hba->dev, "PM in progress=%d, sys. suspended=%d\n", in ufshcd_print_host_state()
639 hba->pm_op_in_progress, hba->is_sys_suspended); in ufshcd_print_host_state()
640 dev_err(hba->dev, "Auto BKOPS=%d, Host self-block=%d\n", in ufshcd_print_host_state()
641 hba->auto_bkops_enabled, hba->host->host_self_blocked); in ufshcd_print_host_state()
642 dev_err(hba->dev, "Clk gate=%d\n", hba->clk_gating.state); in ufshcd_print_host_state()
643 dev_err(hba->dev, in ufshcd_print_host_state()
645 div_u64(hba->ufs_stats.last_hibern8_exit_tstamp, 1000), in ufshcd_print_host_state()
646 hba->ufs_stats.hibern8_exit_cnt); in ufshcd_print_host_state()
647 dev_err(hba->dev, "last intr at %lld us, last intr status=0x%x\n", in ufshcd_print_host_state()
648 div_u64(hba->ufs_stats.last_intr_ts, 1000), in ufshcd_print_host_state()
649 hba->ufs_stats.last_intr_status); in ufshcd_print_host_state()
650 dev_err(hba->dev, "error handling flags=0x%x, req. abort count=%d\n", in ufshcd_print_host_state()
651 hba->eh_flags, hba->req_abort_count); in ufshcd_print_host_state()
652 dev_err(hba->dev, "hba->ufs_version=0x%x, Host capabilities=0x%x, caps=0x%x\n", in ufshcd_print_host_state()
653 hba->ufs_version, hba->capabilities, hba->caps); in ufshcd_print_host_state()
654 dev_err(hba->dev, "quirks=0x%x, dev. quirks=0x%x\n", hba->quirks, in ufshcd_print_host_state()
655 hba->dev_quirks); in ufshcd_print_host_state()
657 dev_err(hba->dev, "UFS dev info: %.8s %.16s rev %.4s\n", in ufshcd_print_host_state()
658 sdev_ufs->vendor, sdev_ufs->model, sdev_ufs->rev); in ufshcd_print_host_state()
664 * ufshcd_print_pwr_info - print power params as saved in hba
666 * @hba: per-adapter instance
682 * never-ending cycles of messages written back to storage by user space in ufshcd_print_pwr_info()
685 dev_dbg(hba->dev, "%s:[RX, TX]: gear=[%d, %d], lane[%d, %d], pwr[%s, %s], rate = %d\n", in ufshcd_print_pwr_info()
687 hba->pwr_info.gear_rx, hba->pwr_info.gear_tx, in ufshcd_print_pwr_info()
688 hba->pwr_info.lane_rx, hba->pwr_info.lane_tx, in ufshcd_print_pwr_info()
689 names[hba->pwr_info.pwr_rx], in ufshcd_print_pwr_info()
690 names[hba->pwr_info.pwr_tx], in ufshcd_print_pwr_info()
691 hba->pwr_info.hs_rate); in ufshcd_print_pwr_info()
703 hba->dev_info.wb_enabled = false; in ufshcd_device_reset()
704 hba->dev_info.wb_buf_flush_enabled = false; in ufshcd_device_reset()
706 if (hba->dev_info.rtc_type == UFS_RTC_RELATIVE) in ufshcd_device_reset()
707 hba->dev_info.rtc_time_baseline = 0; in ufshcd_device_reset()
709 if (err != -EOPNOTSUPP) in ufshcd_device_reset()
726 * ufshcd_wait_for_register - wait for register value to change
727 * @hba: per-adapter interface
734 * Return: -ETIMEDOUT on error, zero on success.
749 * ufshcd_get_intr_mask - Get the interrupt bit mask
756 if (hba->ufs_version <= ufshci_version(2, 0)) in ufshcd_get_intr_mask()
763 * ufshcd_get_ufs_version - Get the UFS version supported by the HBA
772 if (hba->quirks & UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION) in ufshcd_get_ufs_version()
789 * ufshcd_is_device_present - Check if any device connected to
801 * ufshcd_get_tr_ocs - Get the UTRD Overall Command Status
813 return le32_to_cpu(cqe->status) & MASK_OCS; in ufshcd_get_tr_ocs()
815 return lrbp->utr_descriptor_ptr->header.ocs & MASK_OCS; in ufshcd_get_tr_ocs()
819 * ufshcd_utrl_clear() - Clear requests from the controller request list.
825 if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR) in ufshcd_utrl_clear()
844 * ufshcd_utmrl_clear - Clear a bit in UTMRLCLR register
850 if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR) in ufshcd_utmrl_clear()
857 * ufshcd_get_lists_status - Check UCRDY, UTRLRDY and UTMRLRDY
868 * ufshcd_get_uic_cmd_result - Get the UIC command result
873 * Return: 0 on success; non-zero value on error.
882 * ufshcd_get_dme_attr_val - Get the value of attribute returned by UIC command
887 * Return: 0 on success; non-zero value on error.
895 * ufshcd_get_req_rsp - returns the TR response transaction type
903 return ucd_rsp_ptr->header.transaction_code; in ufshcd_get_req_rsp()
907 * ufshcd_is_exception_event - Check if the device raised an exception event
917 return ucd_rsp_ptr->header.device_information & 1; in ufshcd_is_exception_event()
921 * ufshcd_reset_intr_aggr - Reset interrupt aggregation values.
933 * ufshcd_config_intr_aggr - Configure interrupt aggregation values.
948 * ufshcd_disable_intr_aggr - Disables interrupt aggregation.
957 * ufshcd_enable_run_stop_reg - Enable run-stop registers,
958 * When run-stop registers are set to 1, it indicates the
971 * ufshcd_hba_start - Start controller initialization sequence
985 * ufshcd_is_hba_active - Get controller state
997 * ufshcd_pm_qos_init - initialize PM QoS request
1003 if (hba->pm_qos_enabled) in ufshcd_pm_qos_init()
1006 cpu_latency_qos_add_request(&hba->pm_qos_req, PM_QOS_DEFAULT_VALUE); in ufshcd_pm_qos_init()
1008 if (cpu_latency_qos_request_active(&hba->pm_qos_req)) in ufshcd_pm_qos_init()
1009 hba->pm_qos_enabled = true; in ufshcd_pm_qos_init()
1013 * ufshcd_pm_qos_exit - remove request from PM QoS
1018 if (!hba->pm_qos_enabled) in ufshcd_pm_qos_exit()
1021 cpu_latency_qos_remove_request(&hba->pm_qos_req); in ufshcd_pm_qos_exit()
1022 hba->pm_qos_enabled = false; in ufshcd_pm_qos_exit()
1026 * ufshcd_pm_qos_update - update PM QoS request
1032 if (!hba->pm_qos_enabled) in ufshcd_pm_qos_update()
1035 cpu_latency_qos_update_request(&hba->pm_qos_req, on ? 0 : PM_QOS_DEFAULT_VALUE); in ufshcd_pm_qos_update()
1039 * ufshcd_set_clk_freq - set UFS controller clock frequencies
1049 struct list_head *head = &hba->clk_list_head; in ufshcd_set_clk_freq()
1055 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_set_clk_freq()
1056 if (scale_up && clki->max_freq) { in ufshcd_set_clk_freq()
1057 if (clki->curr_freq == clki->max_freq) in ufshcd_set_clk_freq()
1060 ret = clk_set_rate(clki->clk, clki->max_freq); in ufshcd_set_clk_freq()
1062 dev_err(hba->dev, "%s: %s clk set rate(%dHz) failed, %d\n", in ufshcd_set_clk_freq()
1063 __func__, clki->name, in ufshcd_set_clk_freq()
1064 clki->max_freq, ret); in ufshcd_set_clk_freq()
1068 "scaled up", clki->name, in ufshcd_set_clk_freq()
1069 clki->curr_freq, in ufshcd_set_clk_freq()
1070 clki->max_freq); in ufshcd_set_clk_freq()
1072 clki->curr_freq = clki->max_freq; in ufshcd_set_clk_freq()
1074 } else if (!scale_up && clki->min_freq) { in ufshcd_set_clk_freq()
1075 if (clki->curr_freq == clki->min_freq) in ufshcd_set_clk_freq()
1078 ret = clk_set_rate(clki->clk, clki->min_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->min_freq, ret); in ufshcd_set_clk_freq()
1086 "scaled down", clki->name, in ufshcd_set_clk_freq()
1087 clki->curr_freq, in ufshcd_set_clk_freq()
1088 clki->min_freq); in ufshcd_set_clk_freq()
1089 clki->curr_freq = clki->min_freq; in ufshcd_set_clk_freq()
1092 dev_dbg(hba->dev, "%s: clk: %s, rate: %lu\n", __func__, in ufshcd_set_clk_freq()
1093 clki->name, clk_get_rate(clki->clk)); in ufshcd_set_clk_freq()
1105 struct list_head *head = &hba->clk_list_head; in ufshcd_opp_config_clks()
1112 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_opp_config_clks()
1119 ret = clk_set_rate(clki->clk, freq); in ufshcd_opp_config_clks()
1122 __func__, clki->name, freq, ret); in ufshcd_opp_config_clks()
1128 clki->name, hba->clk_scaling.target_freq, freq); in ufshcd_opp_config_clks()
1141 opp = dev_pm_opp_find_freq_floor_indexed(hba->dev, in ufshcd_opp_set_rate()
1146 ret = dev_pm_opp_set_opp(hba->dev, opp); in ufshcd_opp_set_rate()
1153 * ufshcd_scale_clks - scale up or scale down UFS controller clocks
1170 if (hba->use_pm_opp) in ufshcd_scale_clks()
1179 if (hba->use_pm_opp) in ufshcd_scale_clks()
1181 hba->devfreq->previous_freq); in ufshcd_scale_clks()
1197 * ufshcd_is_devfreq_scaling_required - check if scaling is required or not
1208 struct list_head *head = &hba->clk_list_head; in ufshcd_is_devfreq_scaling_required()
1213 if (hba->use_pm_opp) in ufshcd_is_devfreq_scaling_required()
1214 return freq != hba->clk_scaling.target_freq; in ufshcd_is_devfreq_scaling_required()
1217 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_is_devfreq_scaling_required()
1218 if (scale_up && clki->max_freq) { in ufshcd_is_devfreq_scaling_required()
1219 if (clki->curr_freq == clki->max_freq) in ufshcd_is_devfreq_scaling_required()
1222 } else if (!scale_up && clki->min_freq) { in ufshcd_is_devfreq_scaling_required()
1223 if (clki->curr_freq == clki->min_freq) in ufshcd_is_devfreq_scaling_required()
1246 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_pending_cmds()
1247 __shost_for_each_device(sdev, hba->host) in ufshcd_pending_cmds()
1248 pending += sbitmap_weight(&sdev->budget_map); in ufshcd_pending_cmds()
1249 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_pending_cmds()
1258 * Return: 0 upon success; -EBUSY upon timeout.
1276 if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) { in ufshcd_wait_for_doorbell_clr()
1277 ret = -EBUSY; in ufshcd_wait_for_doorbell_clr()
1304 dev_err(hba->dev, in ufshcd_wait_for_doorbell_clr()
1307 ret = -EBUSY; in ufshcd_wait_for_doorbell_clr()
1315 * ufshcd_scale_gear - scale up/down UFS gear
1320 * Return: 0 for success; -EBUSY if scaling can't happen at this time;
1321 * non-zero for any other errors.
1329 new_pwr_info = hba->pwr_info; in ufshcd_scale_gear()
1338 memcpy(&new_pwr_info, &hba->clk_scaling.saved_pwr_info, in ufshcd_scale_gear()
1341 memcpy(&new_pwr_info, &hba->pwr_info, in ufshcd_scale_gear()
1344 if (hba->pwr_info.gear_tx > hba->clk_scaling.min_gear || in ufshcd_scale_gear()
1345 hba->pwr_info.gear_rx > hba->clk_scaling.min_gear) { in ufshcd_scale_gear()
1347 memcpy(&hba->clk_scaling.saved_pwr_info, in ufshcd_scale_gear()
1348 &hba->pwr_info, in ufshcd_scale_gear()
1352 new_pwr_info.gear_tx = hba->clk_scaling.min_gear; in ufshcd_scale_gear()
1353 new_pwr_info.gear_rx = hba->clk_scaling.min_gear; in ufshcd_scale_gear()
1361 dev_err(hba->dev, "%s: failed err %d, old gear: (tx %d rx %d), new gear: (tx %d rx %d)", in ufshcd_scale_gear()
1363 hba->pwr_info.gear_tx, hba->pwr_info.gear_rx, in ufshcd_scale_gear()
1373 * Return: 0 upon success; -EBUSY upon timeout.
1382 blk_mq_quiesce_tagset(&hba->host->tag_set); in ufshcd_clock_scaling_prepare()
1383 mutex_lock(&hba->wb_mutex); in ufshcd_clock_scaling_prepare()
1384 down_write(&hba->clk_scaling_lock); in ufshcd_clock_scaling_prepare()
1386 if (!hba->clk_scaling.is_allowed || in ufshcd_clock_scaling_prepare()
1388 ret = -EBUSY; in ufshcd_clock_scaling_prepare()
1389 up_write(&hba->clk_scaling_lock); in ufshcd_clock_scaling_prepare()
1390 mutex_unlock(&hba->wb_mutex); in ufshcd_clock_scaling_prepare()
1391 blk_mq_unquiesce_tagset(&hba->host->tag_set); in ufshcd_clock_scaling_prepare()
1404 up_write(&hba->clk_scaling_lock); in ufshcd_clock_scaling_unprepare()
1406 /* Enable Write Booster if current gear requires it else disable it */ in ufshcd_clock_scaling_unprepare()
1408 ufshcd_wb_toggle(hba, hba->pwr_info.gear_rx >= hba->clk_scaling.wb_gear); in ufshcd_clock_scaling_unprepare()
1410 mutex_unlock(&hba->wb_mutex); in ufshcd_clock_scaling_unprepare()
1412 blk_mq_unquiesce_tagset(&hba->host->tag_set); in ufshcd_clock_scaling_unprepare()
1417 * ufshcd_devfreq_scale - scale up/down UFS clocks and gear
1422 * Return: 0 for success; -EBUSY if scaling can't happen at this time; non-zero
1428 u32 old_gear = hba->pwr_info.gear_rx; in ufshcd_devfreq_scale()
1456 ufshcd_scale_clks(hba, hba->devfreq->previous_freq, in ufshcd_devfreq_scale()
1472 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_clk_scaling_suspend_work()
1474 if (hba->clk_scaling.active_reqs || in ufshcd_clk_scaling_suspend_work()
1475 hba->clk_scaling.is_suspended) in ufshcd_clk_scaling_suspend_work()
1478 hba->clk_scaling.is_suspended = true; in ufshcd_clk_scaling_suspend_work()
1479 hba->clk_scaling.window_start_t = 0; in ufshcd_clk_scaling_suspend_work()
1482 devfreq_suspend_device(hba->devfreq); in ufshcd_clk_scaling_suspend_work()
1490 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_clk_scaling_resume_work()
1492 if (!hba->clk_scaling.is_suspended) in ufshcd_clk_scaling_resume_work()
1494 hba->clk_scaling.is_suspended = false; in ufshcd_clk_scaling_resume_work()
1497 devfreq_resume_device(hba->devfreq); in ufshcd_clk_scaling_resume_work()
1507 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_target()
1511 return -EINVAL; in ufshcd_devfreq_target()
1513 if (hba->use_pm_opp) { in ufshcd_devfreq_target()
1524 clki = list_first_entry(&hba->clk_list_head, struct ufs_clk_info, in ufshcd_devfreq_target()
1526 *freq = (unsigned long) clk_round_rate(clki->clk, *freq); in ufshcd_devfreq_target()
1529 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_devfreq_target()
1535 if (hba->clk_scaling.is_suspended) { in ufshcd_devfreq_target()
1536 dev_warn(hba->dev, "clock scaling is suspended, skip"); in ufshcd_devfreq_target()
1540 if (!hba->clk_scaling.active_reqs) in ufshcd_devfreq_target()
1546 /* Decide based on the target or rounded-off frequency and update */ in ufshcd_devfreq_target()
1547 if (hba->use_pm_opp) in ufshcd_devfreq_target()
1548 scale_up = *freq > hba->clk_scaling.target_freq; in ufshcd_devfreq_target()
1550 scale_up = *freq == clki->max_freq; in ufshcd_devfreq_target()
1552 if (!hba->use_pm_opp && !scale_up) in ufshcd_devfreq_target()
1553 *freq = clki->min_freq; in ufshcd_devfreq_target()
1565 hba->clk_scaling.target_freq = *freq; in ufshcd_devfreq_target()
1573 (!scale_up || hba->clk_scaling.suspend_on_no_request)) in ufshcd_devfreq_target()
1574 queue_work(hba->clk_scaling.workq, in ufshcd_devfreq_target()
1575 &hba->clk_scaling.suspend_work); in ufshcd_devfreq_target()
1584 struct ufs_clk_scaling *scaling = &hba->clk_scaling; in ufshcd_devfreq_get_dev_status()
1588 return -EINVAL; in ufshcd_devfreq_get_dev_status()
1592 guard(spinlock_irqsave)(&hba->clk_scaling.lock); in ufshcd_devfreq_get_dev_status()
1595 if (!scaling->window_start_t) in ufshcd_devfreq_get_dev_status()
1603 if (hba->use_pm_opp) { in ufshcd_devfreq_get_dev_status()
1604 stat->current_frequency = hba->clk_scaling.target_freq; in ufshcd_devfreq_get_dev_status()
1606 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_get_dev_status()
1610 stat->current_frequency = clki->curr_freq; in ufshcd_devfreq_get_dev_status()
1613 if (scaling->is_busy_started) in ufshcd_devfreq_get_dev_status()
1614 scaling->tot_busy_t += ktime_us_delta(curr_t, in ufshcd_devfreq_get_dev_status()
1615 scaling->busy_start_t); in ufshcd_devfreq_get_dev_status()
1616 stat->total_time = ktime_us_delta(curr_t, scaling->window_start_t); in ufshcd_devfreq_get_dev_status()
1617 stat->busy_time = scaling->tot_busy_t; in ufshcd_devfreq_get_dev_status()
1619 scaling->window_start_t = curr_t; in ufshcd_devfreq_get_dev_status()
1620 scaling->tot_busy_t = 0; in ufshcd_devfreq_get_dev_status()
1622 if (scaling->active_reqs) { in ufshcd_devfreq_get_dev_status()
1623 scaling->busy_start_t = curr_t; in ufshcd_devfreq_get_dev_status()
1624 scaling->is_busy_started = true; in ufshcd_devfreq_get_dev_status()
1626 scaling->busy_start_t = 0; in ufshcd_devfreq_get_dev_status()
1627 scaling->is_busy_started = false; in ufshcd_devfreq_get_dev_status()
1635 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_init()
1644 if (!hba->use_pm_opp) { in ufshcd_devfreq_init()
1646 dev_pm_opp_add(hba->dev, clki->min_freq, 0); in ufshcd_devfreq_init()
1647 dev_pm_opp_add(hba->dev, clki->max_freq, 0); in ufshcd_devfreq_init()
1650 ufshcd_vops_config_scaling_param(hba, &hba->vps->devfreq_profile, in ufshcd_devfreq_init()
1651 &hba->vps->ondemand_data); in ufshcd_devfreq_init()
1652 devfreq = devfreq_add_device(hba->dev, in ufshcd_devfreq_init()
1653 &hba->vps->devfreq_profile, in ufshcd_devfreq_init()
1655 &hba->vps->ondemand_data); in ufshcd_devfreq_init()
1658 dev_err(hba->dev, "Unable to register with devfreq %d\n", ret); in ufshcd_devfreq_init()
1660 if (!hba->use_pm_opp) { in ufshcd_devfreq_init()
1661 dev_pm_opp_remove(hba->dev, clki->min_freq); in ufshcd_devfreq_init()
1662 dev_pm_opp_remove(hba->dev, clki->max_freq); in ufshcd_devfreq_init()
1667 hba->devfreq = devfreq; in ufshcd_devfreq_init()
1674 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_remove()
1676 if (!hba->devfreq) in ufshcd_devfreq_remove()
1679 devfreq_remove_device(hba->devfreq); in ufshcd_devfreq_remove()
1680 hba->devfreq = NULL; in ufshcd_devfreq_remove()
1682 if (!hba->use_pm_opp) { in ufshcd_devfreq_remove()
1686 dev_pm_opp_remove(hba->dev, clki->min_freq); in ufshcd_devfreq_remove()
1687 dev_pm_opp_remove(hba->dev, clki->max_freq); in ufshcd_devfreq_remove()
1695 cancel_work_sync(&hba->clk_scaling.suspend_work); in ufshcd_suspend_clkscaling()
1696 cancel_work_sync(&hba->clk_scaling.resume_work); in ufshcd_suspend_clkscaling()
1698 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_suspend_clkscaling()
1700 if (!hba->clk_scaling.is_suspended) { in ufshcd_suspend_clkscaling()
1702 hba->clk_scaling.is_suspended = true; in ufshcd_suspend_clkscaling()
1703 hba->clk_scaling.window_start_t = 0; in ufshcd_suspend_clkscaling()
1708 devfreq_suspend_device(hba->devfreq); in ufshcd_suspend_clkscaling()
1715 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_resume_clkscaling()
1717 if (hba->clk_scaling.is_suspended) { in ufshcd_resume_clkscaling()
1719 hba->clk_scaling.is_suspended = false; in ufshcd_resume_clkscaling()
1724 devfreq_resume_device(hba->devfreq); in ufshcd_resume_clkscaling()
1732 return sysfs_emit(buf, "%d\n", hba->clk_scaling.is_enabled); in ufshcd_clkscale_enable_show()
1745 return -EINVAL; in ufshcd_clkscale_enable_store()
1747 down(&hba->host_sem); in ufshcd_clkscale_enable_store()
1749 err = -EBUSY; in ufshcd_clkscale_enable_store()
1754 if (value == hba->clk_scaling.is_enabled) in ufshcd_clkscale_enable_store()
1760 hba->clk_scaling.is_enabled = value; in ufshcd_clkscale_enable_store()
1767 clki = list_first_entry(&hba->clk_list_head, struct ufs_clk_info, list); in ufshcd_clkscale_enable_store()
1768 freq = clki->max_freq; in ufshcd_clkscale_enable_store()
1777 dev_err(hba->dev, "%s: failed to scale clocks up %d\n", in ufshcd_clkscale_enable_store()
1780 hba->clk_scaling.target_freq = freq; in ufshcd_clkscale_enable_store()
1786 up(&hba->host_sem); in ufshcd_clkscale_enable_store()
1792 hba->clk_scaling.enable_attr.show = ufshcd_clkscale_enable_show; in ufshcd_init_clk_scaling_sysfs()
1793 hba->clk_scaling.enable_attr.store = ufshcd_clkscale_enable_store; in ufshcd_init_clk_scaling_sysfs()
1794 sysfs_attr_init(&hba->clk_scaling.enable_attr.attr); in ufshcd_init_clk_scaling_sysfs()
1795 hba->clk_scaling.enable_attr.attr.name = "clkscale_enable"; in ufshcd_init_clk_scaling_sysfs()
1796 hba->clk_scaling.enable_attr.attr.mode = 0644; in ufshcd_init_clk_scaling_sysfs()
1797 if (device_create_file(hba->dev, &hba->clk_scaling.enable_attr)) in ufshcd_init_clk_scaling_sysfs()
1798 dev_err(hba->dev, "Failed to create sysfs for clkscale_enable\n"); in ufshcd_init_clk_scaling_sysfs()
1803 if (hba->clk_scaling.enable_attr.attr.name) in ufshcd_remove_clk_scaling_sysfs()
1804 device_remove_file(hba->dev, &hba->clk_scaling.enable_attr); in ufshcd_remove_clk_scaling_sysfs()
1812 if (!hba->clk_scaling.min_gear) in ufshcd_init_clk_scaling()
1813 hba->clk_scaling.min_gear = UFS_HS_G1; in ufshcd_init_clk_scaling()
1815 if (!hba->clk_scaling.wb_gear) in ufshcd_init_clk_scaling()
1817 hba->clk_scaling.wb_gear = UFS_HS_G3; in ufshcd_init_clk_scaling()
1819 INIT_WORK(&hba->clk_scaling.suspend_work, in ufshcd_init_clk_scaling()
1821 INIT_WORK(&hba->clk_scaling.resume_work, in ufshcd_init_clk_scaling()
1824 spin_lock_init(&hba->clk_scaling.lock); in ufshcd_init_clk_scaling()
1826 hba->clk_scaling.workq = alloc_ordered_workqueue( in ufshcd_init_clk_scaling()
1827 "ufs_clkscaling_%d", WQ_MEM_RECLAIM, hba->host->host_no); in ufshcd_init_clk_scaling()
1829 hba->clk_scaling.is_initialized = true; in ufshcd_init_clk_scaling()
1834 if (!hba->clk_scaling.is_initialized) in ufshcd_exit_clk_scaling()
1838 destroy_workqueue(hba->clk_scaling.workq); in ufshcd_exit_clk_scaling()
1840 hba->clk_scaling.is_initialized = false; in ufshcd_exit_clk_scaling()
1849 cancel_delayed_work_sync(&hba->clk_gating.gate_work); in ufshcd_ungate_work()
1851 scoped_guard(spinlock_irqsave, &hba->clk_gating.lock) { in ufshcd_ungate_work()
1852 if (hba->clk_gating.state == CLKS_ON) in ufshcd_ungate_work()
1864 hba->clk_gating.is_suspended = true; in ufshcd_ungate_work()
1868 dev_err(hba->dev, "%s: hibern8 exit failed %d\n", in ufshcd_ungate_work()
1873 hba->clk_gating.is_suspended = false; in ufshcd_ungate_work()
1878 * ufshcd_hold - Enable clocks that were gated earlier due to ufshcd_release.
1888 !hba->clk_gating.is_initialized) in ufshcd_hold()
1890 spin_lock_irqsave(&hba->clk_gating.lock, flags); in ufshcd_hold()
1891 hba->clk_gating.active_reqs++; in ufshcd_hold()
1894 switch (hba->clk_gating.state) { in ufshcd_hold()
1906 spin_unlock_irqrestore(&hba->clk_gating.lock, flags); in ufshcd_hold()
1907 flush_result = flush_work(&hba->clk_gating.ungate_work); in ufshcd_hold()
1908 if (hba->clk_gating.is_suspended && !flush_result) in ufshcd_hold()
1910 spin_lock_irqsave(&hba->clk_gating.lock, flags); in ufshcd_hold()
1915 if (cancel_delayed_work(&hba->clk_gating.gate_work)) { in ufshcd_hold()
1916 hba->clk_gating.state = CLKS_ON; in ufshcd_hold()
1918 hba->clk_gating.state); in ufshcd_hold()
1928 hba->clk_gating.state = REQ_CLKS_ON; in ufshcd_hold()
1930 hba->clk_gating.state); in ufshcd_hold()
1931 queue_work(hba->clk_gating.clk_gating_workq, in ufshcd_hold()
1932 &hba->clk_gating.ungate_work); in ufshcd_hold()
1939 spin_unlock_irqrestore(&hba->clk_gating.lock, flags); in ufshcd_hold()
1940 flush_work(&hba->clk_gating.ungate_work); in ufshcd_hold()
1942 spin_lock_irqsave(&hba->clk_gating.lock, flags); in ufshcd_hold()
1945 dev_err(hba->dev, "%s: clk gating is in invalid state %d\n", in ufshcd_hold()
1946 __func__, hba->clk_gating.state); in ufshcd_hold()
1949 spin_unlock_irqrestore(&hba->clk_gating.lock, flags); in ufshcd_hold()
1959 scoped_guard(spinlock_irqsave, &hba->clk_gating.lock) { in ufshcd_gate_work()
1966 if (hba->clk_gating.is_suspended || in ufshcd_gate_work()
1967 hba->clk_gating.state != REQ_CLKS_OFF) { in ufshcd_gate_work()
1968 hba->clk_gating.state = CLKS_ON; in ufshcd_gate_work()
1970 hba->clk_gating.state); in ufshcd_gate_work()
1974 if (hba->clk_gating.active_reqs) in ufshcd_gate_work()
1978 scoped_guard(spinlock_irqsave, hba->host->host_lock) { in ufshcd_gate_work()
1980 hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) in ufshcd_gate_work()
1988 hba->clk_gating.state = CLKS_ON; in ufshcd_gate_work()
1989 dev_err(hba->dev, "%s: hibern8 enter failed %d\n", in ufshcd_gate_work()
1992 hba->clk_gating.state); in ufshcd_gate_work()
2013 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_gate_work()
2014 if (hba->clk_gating.state == REQ_CLKS_OFF) { in ufshcd_gate_work()
2015 hba->clk_gating.state = CLKS_OFF; in ufshcd_gate_work()
2017 hba->clk_gating.state); in ufshcd_gate_work()
2023 lockdep_assert_held(&hba->clk_gating.lock); in __ufshcd_release()
2028 hba->clk_gating.active_reqs--; in __ufshcd_release()
2030 if (hba->clk_gating.active_reqs || hba->clk_gating.is_suspended || in __ufshcd_release()
2031 !hba->clk_gating.is_initialized || in __ufshcd_release()
2032 hba->clk_gating.state == CLKS_OFF) in __ufshcd_release()
2035 scoped_guard(spinlock_irqsave, hba->host->host_lock) { in __ufshcd_release()
2037 hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) in __ufshcd_release()
2041 hba->clk_gating.state = REQ_CLKS_OFF; in __ufshcd_release()
2042 trace_ufshcd_clk_gating(hba, hba->clk_gating.state); in __ufshcd_release()
2043 queue_delayed_work(hba->clk_gating.clk_gating_workq, in __ufshcd_release()
2044 &hba->clk_gating.gate_work, in __ufshcd_release()
2045 msecs_to_jiffies(hba->clk_gating.delay_ms)); in __ufshcd_release()
2050 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_release()
2060 return sysfs_emit(buf, "%lu\n", hba->clk_gating.delay_ms); in ufshcd_clkgate_delay_show()
2067 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_clkgate_delay_set()
2068 hba->clk_gating.delay_ms = value; in ufshcd_clkgate_delay_set()
2078 return -EINVAL; in ufshcd_clkgate_delay_store()
2089 return sysfs_emit(buf, "%d\n", hba->clk_gating.is_enabled); in ufshcd_clkgate_enable_show()
2099 return -EINVAL; in ufshcd_clkgate_enable_store()
2103 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_clkgate_enable_store()
2105 if (value == hba->clk_gating.is_enabled) in ufshcd_clkgate_enable_store()
2111 hba->clk_gating.active_reqs++; in ufshcd_clkgate_enable_store()
2113 hba->clk_gating.is_enabled = value; in ufshcd_clkgate_enable_store()
2120 hba->clk_gating.delay_attr.show = ufshcd_clkgate_delay_show; in ufshcd_init_clk_gating_sysfs()
2121 hba->clk_gating.delay_attr.store = ufshcd_clkgate_delay_store; in ufshcd_init_clk_gating_sysfs()
2122 sysfs_attr_init(&hba->clk_gating.delay_attr.attr); in ufshcd_init_clk_gating_sysfs()
2123 hba->clk_gating.delay_attr.attr.name = "clkgate_delay_ms"; in ufshcd_init_clk_gating_sysfs()
2124 hba->clk_gating.delay_attr.attr.mode = 0644; in ufshcd_init_clk_gating_sysfs()
2125 if (device_create_file(hba->dev, &hba->clk_gating.delay_attr)) in ufshcd_init_clk_gating_sysfs()
2126 dev_err(hba->dev, "Failed to create sysfs for clkgate_delay\n"); in ufshcd_init_clk_gating_sysfs()
2128 hba->clk_gating.enable_attr.show = ufshcd_clkgate_enable_show; in ufshcd_init_clk_gating_sysfs()
2129 hba->clk_gating.enable_attr.store = ufshcd_clkgate_enable_store; in ufshcd_init_clk_gating_sysfs()
2130 sysfs_attr_init(&hba->clk_gating.enable_attr.attr); in ufshcd_init_clk_gating_sysfs()
2131 hba->clk_gating.enable_attr.attr.name = "clkgate_enable"; in ufshcd_init_clk_gating_sysfs()
2132 hba->clk_gating.enable_attr.attr.mode = 0644; in ufshcd_init_clk_gating_sysfs()
2133 if (device_create_file(hba->dev, &hba->clk_gating.enable_attr)) in ufshcd_init_clk_gating_sysfs()
2134 dev_err(hba->dev, "Failed to create sysfs for clkgate_enable\n"); in ufshcd_init_clk_gating_sysfs()
2139 if (hba->clk_gating.delay_attr.attr.name) in ufshcd_remove_clk_gating_sysfs()
2140 device_remove_file(hba->dev, &hba->clk_gating.delay_attr); in ufshcd_remove_clk_gating_sysfs()
2141 if (hba->clk_gating.enable_attr.attr.name) in ufshcd_remove_clk_gating_sysfs()
2142 device_remove_file(hba->dev, &hba->clk_gating.enable_attr); in ufshcd_remove_clk_gating_sysfs()
2150 hba->clk_gating.state = CLKS_ON; in ufshcd_init_clk_gating()
2152 hba->clk_gating.delay_ms = 150; in ufshcd_init_clk_gating()
2153 INIT_DELAYED_WORK(&hba->clk_gating.gate_work, ufshcd_gate_work); in ufshcd_init_clk_gating()
2154 INIT_WORK(&hba->clk_gating.ungate_work, ufshcd_ungate_work); in ufshcd_init_clk_gating()
2156 hba->clk_gating.clk_gating_workq = alloc_ordered_workqueue( in ufshcd_init_clk_gating()
2158 hba->host->host_no); in ufshcd_init_clk_gating()
2162 hba->clk_gating.is_enabled = true; in ufshcd_init_clk_gating()
2163 hba->clk_gating.is_initialized = true; in ufshcd_init_clk_gating()
2168 if (!hba->clk_gating.is_initialized) in ufshcd_exit_clk_gating()
2175 hba->clk_gating.is_initialized = false; in ufshcd_exit_clk_gating()
2178 destroy_workqueue(hba->clk_gating.clk_gating_workq); in ufshcd_exit_clk_gating()
2189 guard(spinlock_irqsave)(&hba->clk_scaling.lock); in ufshcd_clk_scaling_start_busy()
2191 if (!hba->clk_scaling.active_reqs++) in ufshcd_clk_scaling_start_busy()
2194 if (!hba->clk_scaling.is_enabled || hba->pm_op_in_progress) in ufshcd_clk_scaling_start_busy()
2198 queue_work(hba->clk_scaling.workq, in ufshcd_clk_scaling_start_busy()
2199 &hba->clk_scaling.resume_work); in ufshcd_clk_scaling_start_busy()
2201 if (!hba->clk_scaling.window_start_t) { in ufshcd_clk_scaling_start_busy()
2202 hba->clk_scaling.window_start_t = curr_t; in ufshcd_clk_scaling_start_busy()
2203 hba->clk_scaling.tot_busy_t = 0; in ufshcd_clk_scaling_start_busy()
2204 hba->clk_scaling.is_busy_started = false; in ufshcd_clk_scaling_start_busy()
2207 if (!hba->clk_scaling.is_busy_started) { in ufshcd_clk_scaling_start_busy()
2208 hba->clk_scaling.busy_start_t = curr_t; in ufshcd_clk_scaling_start_busy()
2209 hba->clk_scaling.is_busy_started = true; in ufshcd_clk_scaling_start_busy()
2215 struct ufs_clk_scaling *scaling = &hba->clk_scaling; in ufshcd_clk_scaling_update_busy()
2220 guard(spinlock_irqsave)(&hba->clk_scaling.lock); in ufshcd_clk_scaling_update_busy()
2222 hba->clk_scaling.active_reqs--; in ufshcd_clk_scaling_update_busy()
2223 if (!scaling->active_reqs && scaling->is_busy_started) { in ufshcd_clk_scaling_update_busy()
2224 scaling->tot_busy_t += ktime_to_us(ktime_sub(ktime_get(), in ufshcd_clk_scaling_update_busy()
2225 scaling->busy_start_t)); in ufshcd_clk_scaling_update_busy()
2226 scaling->busy_start_t = 0; in ufshcd_clk_scaling_update_busy()
2227 scaling->is_busy_started = false; in ufshcd_clk_scaling_update_busy()
2238 return -EINVAL; in ufshcd_monitor_opcode2dir()
2244 const struct ufs_hba_monitor *m = &hba->monitor; in ufshcd_should_inform_monitor()
2246 return (m->enabled && lrbp && lrbp->cmd && in ufshcd_should_inform_monitor()
2247 (!m->chunk_size || m->chunk_size == lrbp->cmd->sdb.length) && in ufshcd_should_inform_monitor()
2248 ktime_before(hba->monitor.enabled_ts, lrbp->issue_time_stamp)); in ufshcd_should_inform_monitor()
2254 int dir = ufshcd_monitor_opcode2dir(*lrbp->cmd->cmnd); in ufshcd_start_monitor()
2257 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_start_monitor()
2258 if (dir >= 0 && hba->monitor.nr_queued[dir]++ == 0) in ufshcd_start_monitor()
2259 hba->monitor.busy_start_ts[dir] = ktime_get(); in ufshcd_start_monitor()
2260 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_start_monitor()
2265 int dir = ufshcd_monitor_opcode2dir(*lrbp->cmd->cmnd); in ufshcd_update_monitor()
2268 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_update_monitor()
2269 if (dir >= 0 && hba->monitor.nr_queued[dir] > 0) { in ufshcd_update_monitor()
2270 const struct request *req = scsi_cmd_to_rq(lrbp->cmd); in ufshcd_update_monitor()
2271 struct ufs_hba_monitor *m = &hba->monitor; in ufshcd_update_monitor()
2274 now = lrbp->compl_time_stamp; in ufshcd_update_monitor()
2275 inc = ktime_sub(now, m->busy_start_ts[dir]); in ufshcd_update_monitor()
2276 m->total_busy[dir] = ktime_add(m->total_busy[dir], inc); in ufshcd_update_monitor()
2277 m->nr_sec_rw[dir] += blk_rq_sectors(req); in ufshcd_update_monitor()
2280 m->nr_req[dir]++; in ufshcd_update_monitor()
2281 lat = ktime_sub(now, lrbp->issue_time_stamp); in ufshcd_update_monitor()
2282 m->lat_sum[dir] += lat; in ufshcd_update_monitor()
2283 if (m->lat_max[dir] < lat || !m->lat_max[dir]) in ufshcd_update_monitor()
2284 m->lat_max[dir] = lat; in ufshcd_update_monitor()
2285 if (m->lat_min[dir] > lat || !m->lat_min[dir]) in ufshcd_update_monitor()
2286 m->lat_min[dir] = lat; in ufshcd_update_monitor()
2288 m->nr_queued[dir]--; in ufshcd_update_monitor()
2290 m->busy_start_ts[dir] = now; in ufshcd_update_monitor()
2292 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_update_monitor()
2296 * ufshcd_send_command - Send SCSI or device management commands
2305 struct ufshcd_lrb *lrbp = &hba->lrb[task_tag]; in ufshcd_send_command()
2308 lrbp->issue_time_stamp = ktime_get(); in ufshcd_send_command()
2309 lrbp->issue_time_stamp_local_clock = local_clock(); in ufshcd_send_command()
2310 lrbp->compl_time_stamp = ktime_set(0, 0); in ufshcd_send_command()
2311 lrbp->compl_time_stamp_local_clock = 0; in ufshcd_send_command()
2313 if (lrbp->cmd) in ufshcd_send_command()
2318 if (hba->mcq_enabled) { in ufshcd_send_command()
2320 struct utp_transfer_req_desc *src = lrbp->utr_descriptor_ptr; in ufshcd_send_command()
2323 spin_lock(&hwq->sq_lock); in ufshcd_send_command()
2324 dest = hwq->sqe_base_addr + hwq->sq_tail_slot; in ufshcd_send_command()
2327 spin_unlock(&hwq->sq_lock); in ufshcd_send_command()
2329 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_send_command()
2330 if (hba->vops && hba->vops->setup_xfer_req) in ufshcd_send_command()
2331 hba->vops->setup_xfer_req(hba, lrbp->task_tag, in ufshcd_send_command()
2332 !!lrbp->cmd); in ufshcd_send_command()
2333 __set_bit(lrbp->task_tag, &hba->outstanding_reqs); in ufshcd_send_command()
2334 ufshcd_writel(hba, 1 << lrbp->task_tag, in ufshcd_send_command()
2336 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_send_command()
2341 * ufshcd_copy_sense_data - Copy sense data in case of check condition
2346 u8 *const sense_buffer = lrbp->cmd->sense_buffer; in ufshcd_copy_sense_data()
2350 resp_len = be16_to_cpu(lrbp->ucd_rsp_ptr->header.data_segment_length); in ufshcd_copy_sense_data()
2354 len = be16_to_cpu(lrbp->ucd_rsp_ptr->sr.sense_data_len); in ufshcd_copy_sense_data()
2357 memcpy(sense_buffer, lrbp->ucd_rsp_ptr->sr.sense_data, in ufshcd_copy_sense_data()
2363 * ufshcd_copy_query_response() - Copy the Query Response and the data
2373 struct ufs_query_res *query_res = &hba->dev_cmd.query.response; in ufshcd_copy_query_response()
2375 memcpy(&query_res->upiu_res, &lrbp->ucd_rsp_ptr->qr, QUERY_OSF_SIZE); in ufshcd_copy_query_response()
2378 if (hba->dev_cmd.query.descriptor && in ufshcd_copy_query_response()
2379 lrbp->ucd_rsp_ptr->qr.opcode == UPIU_QUERY_OPCODE_READ_DESC) { in ufshcd_copy_query_response()
2380 u8 *descp = (u8 *)lrbp->ucd_rsp_ptr + in ufshcd_copy_query_response()
2386 resp_len = be16_to_cpu(lrbp->ucd_rsp_ptr->header in ufshcd_copy_query_response()
2389 hba->dev_cmd.query.request.upiu_req.length); in ufshcd_copy_query_response()
2391 memcpy(hba->dev_cmd.query.descriptor, descp, resp_len); in ufshcd_copy_query_response()
2393 dev_warn(hba->dev, in ufshcd_copy_query_response()
2396 return -EINVAL; in ufshcd_copy_query_response()
2404 * ufshcd_hba_capabilities - Read controller capabilities
2413 hba->capabilities = ufshcd_readl(hba, REG_CONTROLLER_CAPABILITIES); in ufshcd_hba_capabilities()
2416 hba->nutrs = (hba->capabilities & MASK_TRANSFER_REQUESTS_SLOTS_SDB) + 1; in ufshcd_hba_capabilities()
2417 hba->nutmrs = in ufshcd_hba_capabilities()
2418 ((hba->capabilities & MASK_TASK_MANAGEMENT_REQUEST_SLOTS) >> 16) + 1; in ufshcd_hba_capabilities()
2419 hba->reserved_slot = hba->nutrs - 1; in ufshcd_hba_capabilities()
2421 hba->nortt = FIELD_GET(MASK_NUMBER_OUTSTANDING_RTT, hba->capabilities) + 1; in ufshcd_hba_capabilities()
2426 dev_err(hba->dev, "crypto setup failed\n"); in ufshcd_hba_capabilities()
2435 hba->mcq_sup = FIELD_GET(MASK_MCQ_SUPPORT, hba->capabilities); in ufshcd_hba_capabilities()
2440 if (!(hba->quirks & UFSHCD_QUIRK_BROKEN_LSDBS_CAP)) in ufshcd_hba_capabilities()
2441 hba->lsdb_sup = !FIELD_GET(MASK_LSDB_SUPPORT, hba->capabilities); in ufshcd_hba_capabilities()
2443 hba->lsdb_sup = true; in ufshcd_hba_capabilities()
2445 hba->mcq_capabilities = ufshcd_readl(hba, REG_MCQCAP); in ufshcd_hba_capabilities()
2451 * ufshcd_ready_for_uic_cmd - Check if controller is ready
2467 * ufshcd_get_upmcrs - Get the power mode change request status
2480 * ufshcd_dispatch_uic_cmd - Dispatch an UIC command to the Unipro layer
2487 lockdep_assert_held(&hba->uic_cmd_mutex); in ufshcd_dispatch_uic_cmd()
2489 WARN_ON(hba->active_uic_cmd); in ufshcd_dispatch_uic_cmd()
2491 hba->active_uic_cmd = uic_cmd; in ufshcd_dispatch_uic_cmd()
2494 ufshcd_writel(hba, uic_cmd->argument1, REG_UIC_COMMAND_ARG_1); in ufshcd_dispatch_uic_cmd()
2495 ufshcd_writel(hba, uic_cmd->argument2, REG_UIC_COMMAND_ARG_2); in ufshcd_dispatch_uic_cmd()
2496 ufshcd_writel(hba, uic_cmd->argument3, REG_UIC_COMMAND_ARG_3); in ufshcd_dispatch_uic_cmd()
2501 ufshcd_writel(hba, uic_cmd->command & COMMAND_OPCODE_MASK, in ufshcd_dispatch_uic_cmd()
2506 * ufshcd_wait_for_uic_cmd - Wait for completion of an UIC command
2518 lockdep_assert_held(&hba->uic_cmd_mutex); in ufshcd_wait_for_uic_cmd()
2520 if (wait_for_completion_timeout(&uic_cmd->done, in ufshcd_wait_for_uic_cmd()
2522 ret = uic_cmd->argument2 & MASK_UIC_COMMAND_RESULT; in ufshcd_wait_for_uic_cmd()
2524 ret = -ETIMEDOUT; in ufshcd_wait_for_uic_cmd()
2525 dev_err(hba->dev, in ufshcd_wait_for_uic_cmd()
2527 uic_cmd->command, uic_cmd->argument3); in ufshcd_wait_for_uic_cmd()
2529 if (!uic_cmd->cmd_active) { in ufshcd_wait_for_uic_cmd()
2530 dev_err(hba->dev, "%s: UIC cmd has been completed, return the result\n", in ufshcd_wait_for_uic_cmd()
2532 ret = uic_cmd->argument2 & MASK_UIC_COMMAND_RESULT; in ufshcd_wait_for_uic_cmd()
2536 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_wait_for_uic_cmd()
2537 hba->active_uic_cmd = NULL; in ufshcd_wait_for_uic_cmd()
2538 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_wait_for_uic_cmd()
2544 * __ufshcd_send_uic_cmd - Send UIC commands and retrieve the result
2553 lockdep_assert_held(&hba->uic_cmd_mutex); in __ufshcd_send_uic_cmd()
2556 dev_err(hba->dev, in __ufshcd_send_uic_cmd()
2558 return -EIO; in __ufshcd_send_uic_cmd()
2561 init_completion(&uic_cmd->done); in __ufshcd_send_uic_cmd()
2563 uic_cmd->cmd_active = 1; in __ufshcd_send_uic_cmd()
2570 * ufshcd_send_uic_cmd - Send UIC commands and retrieve the result
2580 if (hba->quirks & UFSHCD_QUIRK_BROKEN_UIC_CMD) in ufshcd_send_uic_cmd()
2584 mutex_lock(&hba->uic_cmd_mutex); in ufshcd_send_uic_cmd()
2591 mutex_unlock(&hba->uic_cmd_mutex); in ufshcd_send_uic_cmd()
2598 * ufshcd_sgl_to_prdt - SG list to PRTD (Physical Region Description Table, 4DW format)
2599 * @hba: per-adapter instance
2613 if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) in ufshcd_sgl_to_prdt()
2614 lrbp->utr_descriptor_ptr->prd_table_length = in ufshcd_sgl_to_prdt()
2617 lrbp->utr_descriptor_ptr->prd_table_length = cpu_to_le16(sg_entries); in ufshcd_sgl_to_prdt()
2619 prd = lrbp->ucd_prdt_ptr; in ufshcd_sgl_to_prdt()
2633 prd->size = cpu_to_le32(len - 1); in ufshcd_sgl_to_prdt()
2634 prd->addr = cpu_to_le64(sg->dma_address); in ufshcd_sgl_to_prdt()
2635 prd->reserved = 0; in ufshcd_sgl_to_prdt()
2639 lrbp->utr_descriptor_ptr->prd_table_length = 0; in ufshcd_sgl_to_prdt()
2644 * ufshcd_map_sg - Map scatter-gather list to prdt
2648 * Return: 0 in case of success, non-zero value in case of failure.
2652 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_map_sg()
2664 * ufshcd_enable_intr - enable interrupts
2677 * ufshcd_disable_intr - disable interrupts
2690 * ufshcd_prepare_req_desc_hdr - Fill UTP Transfer request descriptor header according to request
2703 struct utp_transfer_req_desc *req_desc = lrbp->utr_descriptor_ptr; in ufshcd_prepare_req_desc_hdr()
2704 struct request_desc_header *h = &req_desc->header; in ufshcd_prepare_req_desc_hdr()
2707 lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; in ufshcd_prepare_req_desc_hdr()
2722 h->command_type = lrbp->command_type; in ufshcd_prepare_req_desc_hdr()
2723 h->data_direction = data_direction; in ufshcd_prepare_req_desc_hdr()
2724 h->ehs_length = ehs_length; in ufshcd_prepare_req_desc_hdr()
2726 if (lrbp->intr_cmd) in ufshcd_prepare_req_desc_hdr()
2727 h->interrupt = 1; in ufshcd_prepare_req_desc_hdr()
2737 h->ocs = OCS_INVALID_COMMAND_STATUS; in ufshcd_prepare_req_desc_hdr()
2739 req_desc->prd_table_length = 0; in ufshcd_prepare_req_desc_hdr()
2743 * ufshcd_prepare_utp_scsi_cmd_upiu() - fills the utp_transfer_req_desc,
2751 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_prepare_utp_scsi_cmd_upiu()
2752 struct utp_upiu_req *ucd_req_ptr = lrbp->ucd_req_ptr; in ufshcd_prepare_utp_scsi_cmd_upiu()
2755 ucd_req_ptr->header = (struct utp_upiu_header){ in ufshcd_prepare_utp_scsi_cmd_upiu()
2758 .lun = lrbp->lun, in ufshcd_prepare_utp_scsi_cmd_upiu()
2759 .task_tag = lrbp->task_tag, in ufshcd_prepare_utp_scsi_cmd_upiu()
2763 WARN_ON_ONCE(ucd_req_ptr->header.task_tag != lrbp->task_tag); in ufshcd_prepare_utp_scsi_cmd_upiu()
2765 ucd_req_ptr->sc.exp_data_transfer_len = cpu_to_be32(cmd->sdb.length); in ufshcd_prepare_utp_scsi_cmd_upiu()
2767 cdb_len = min_t(unsigned short, cmd->cmd_len, UFS_CDB_SIZE); in ufshcd_prepare_utp_scsi_cmd_upiu()
2768 memcpy(ucd_req_ptr->sc.cdb, cmd->cmnd, cdb_len); in ufshcd_prepare_utp_scsi_cmd_upiu()
2770 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_prepare_utp_scsi_cmd_upiu()
2774 * ufshcd_prepare_utp_query_req_upiu() - fill the utp_transfer_req_desc for query request
2782 struct utp_upiu_req *ucd_req_ptr = lrbp->ucd_req_ptr; in ufshcd_prepare_utp_query_req_upiu()
2783 struct ufs_query *query = &hba->dev_cmd.query; in ufshcd_prepare_utp_query_req_upiu()
2784 u16 len = be16_to_cpu(query->request.upiu_req.length); in ufshcd_prepare_utp_query_req_upiu()
2787 ucd_req_ptr->header = (struct utp_upiu_header){ in ufshcd_prepare_utp_query_req_upiu()
2790 .lun = lrbp->lun, in ufshcd_prepare_utp_query_req_upiu()
2791 .task_tag = lrbp->task_tag, in ufshcd_prepare_utp_query_req_upiu()
2792 .query_function = query->request.query_func, in ufshcd_prepare_utp_query_req_upiu()
2795 query->request.upiu_req.opcode == in ufshcd_prepare_utp_query_req_upiu()
2802 memcpy(&ucd_req_ptr->qr, &query->request.upiu_req, in ufshcd_prepare_utp_query_req_upiu()
2806 if (query->request.upiu_req.opcode == UPIU_QUERY_OPCODE_WRITE_DESC) in ufshcd_prepare_utp_query_req_upiu()
2807 memcpy(ucd_req_ptr + 1, query->descriptor, len); in ufshcd_prepare_utp_query_req_upiu()
2809 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_prepare_utp_query_req_upiu()
2814 struct utp_upiu_req *ucd_req_ptr = lrbp->ucd_req_ptr; in ufshcd_prepare_utp_nop_upiu()
2818 ucd_req_ptr->header = (struct utp_upiu_header){ in ufshcd_prepare_utp_nop_upiu()
2820 .task_tag = lrbp->task_tag, in ufshcd_prepare_utp_nop_upiu()
2823 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_prepare_utp_nop_upiu()
2827 * ufshcd_compose_devman_upiu - UFS Protocol Information Unit(UPIU)
2842 if (hba->dev_cmd.type == DEV_CMD_TYPE_QUERY) in ufshcd_compose_devman_upiu()
2844 else if (hba->dev_cmd.type == DEV_CMD_TYPE_NOP) in ufshcd_compose_devman_upiu()
2847 ret = -EINVAL; in ufshcd_compose_devman_upiu()
2853 * ufshcd_comp_scsi_upiu - UFS Protocol Information Unit(UPIU)
2860 struct request *rq = scsi_cmd_to_rq(lrbp->cmd); in ufshcd_comp_scsi_upiu()
2864 ufshcd_prepare_req_desc_hdr(hba, lrbp, &upiu_flags, lrbp->cmd->sc_data_direction, 0); in ufshcd_comp_scsi_upiu()
2872 memset(lrbp->ucd_req_ptr, 0, sizeof(*lrbp->ucd_req_ptr)); in __ufshcd_setup_cmd()
2874 lrbp->cmd = cmd; in __ufshcd_setup_cmd()
2875 lrbp->task_tag = tag; in __ufshcd_setup_cmd()
2876 lrbp->lun = lun; in __ufshcd_setup_cmd()
2884 lrbp->intr_cmd = !ufshcd_is_intr_aggr_allowed(hba); in ufshcd_setup_scsi_cmd()
2885 lrbp->req_abort_skip = false; in ufshcd_setup_scsi_cmd()
2891 * ufshcd_upiu_wlun_to_scsi_wlun - maps UPIU W-LUN id to SCSI W-LUN ID
2892 * @upiu_wlun_id: UPIU W-LUN id
2894 * Return: SCSI W-LUN id.
2903 return sdev->lun == in is_device_wlun()
2917 hba->nr_queues[HCTX_TYPE_DEFAULT] = 1; in ufshcd_map_queues()
2918 hba->nr_queues[HCTX_TYPE_READ] = 0; in ufshcd_map_queues()
2919 hba->nr_queues[HCTX_TYPE_POLL] = 1; in ufshcd_map_queues()
2920 hba->nr_hw_queues = 1; in ufshcd_map_queues()
2923 for (i = 0; i < shost->nr_maps; i++) { in ufshcd_map_queues()
2924 struct blk_mq_queue_map *map = &shost->tag_set.map[i]; in ufshcd_map_queues()
2926 map->nr_queues = hba->nr_queues[i]; in ufshcd_map_queues()
2927 if (!map->nr_queues) in ufshcd_map_queues()
2929 map->queue_offset = queue_offset; in ufshcd_map_queues()
2931 map->queue_offset = 0; in ufshcd_map_queues()
2934 queue_offset += map->nr_queues; in ufshcd_map_queues()
2940 struct utp_transfer_cmd_desc *cmd_descp = (void *)hba->ucdl_base_addr + in ufshcd_init_lrb()
2942 struct utp_transfer_req_desc *utrdlp = hba->utrdl_base_addr; in ufshcd_init_lrb()
2943 dma_addr_t cmd_desc_element_addr = hba->ucdl_dma_addr + in ufshcd_init_lrb()
2948 lrb->utr_descriptor_ptr = utrdlp + i; in ufshcd_init_lrb()
2949 lrb->utrd_dma_addr = hba->utrdl_dma_addr + in ufshcd_init_lrb()
2951 lrb->ucd_req_ptr = (struct utp_upiu_req *)cmd_descp->command_upiu; in ufshcd_init_lrb()
2952 lrb->ucd_req_dma_addr = cmd_desc_element_addr; in ufshcd_init_lrb()
2953 lrb->ucd_rsp_ptr = (struct utp_upiu_rsp *)cmd_descp->response_upiu; in ufshcd_init_lrb()
2954 lrb->ucd_rsp_dma_addr = cmd_desc_element_addr + response_offset; in ufshcd_init_lrb()
2955 lrb->ucd_prdt_ptr = (struct ufshcd_sg_entry *)cmd_descp->prd_table; in ufshcd_init_lrb()
2956 lrb->ucd_prdt_dma_addr = cmd_desc_element_addr + prdt_offset; in ufshcd_init_lrb()
2960 * ufshcd_queuecommand - main entry point for SCSI requests
2964 * Return: 0 for success, non-zero in case of failure.
2969 int tag = scsi_cmd_to_rq(cmd)->tag; in ufshcd_queuecommand()
2974 switch (hba->ufshcd_state) { in ufshcd_queuecommand()
2979 * SCSI error handler can call ->queuecommand() while UFS error in ufshcd_queuecommand()
3001 if (hba->pm_op_in_progress) { in ufshcd_queuecommand()
3002 hba->force_reset = true; in ufshcd_queuecommand()
3017 hba->req_abort_count = 0; in ufshcd_queuecommand()
3021 lrbp = &hba->lrb[tag]; in ufshcd_queuecommand()
3023 ufshcd_setup_scsi_cmd(hba, lrbp, cmd, ufshcd_scsi_to_upiu_lun(cmd->device->lun), tag); in ufshcd_queuecommand()
3031 if (hba->mcq_enabled) in ufshcd_queuecommand()
3040 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_queuecommand()
3042 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_queuecommand()
3052 lrbp->intr_cmd = true; /* No interrupt aggregation */ in ufshcd_setup_dev_cmd()
3053 hba->dev_cmd.type = cmd_type; in ufshcd_setup_dev_cmd()
3086 if (hba->mcq_enabled) { in ufshcd_clear_cmd()
3093 dev_err(hba->dev, "%s: failed tag=%d. err=%d\n", in ufshcd_clear_cmd()
3106 * wait for h/w to clear corresponding bit in door-bell. in ufshcd_clear_cmd()
3114 * ufshcd_dev_cmd_completion() - handles device management command responses
3126 hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); in ufshcd_dev_cmd_completion()
3127 resp = ufshcd_get_req_rsp(lrbp->ucd_rsp_ptr); in ufshcd_dev_cmd_completion()
3131 if (hba->dev_cmd.type != DEV_CMD_TYPE_NOP) { in ufshcd_dev_cmd_completion()
3132 err = -EINVAL; in ufshcd_dev_cmd_completion()
3133 dev_err(hba->dev, "%s: unexpected response %x\n", in ufshcd_dev_cmd_completion()
3138 u8 response = lrbp->ucd_rsp_ptr->header.response; in ufshcd_dev_cmd_completion()
3143 err = -EINVAL; in ufshcd_dev_cmd_completion()
3144 dev_err(hba->dev, "%s: unexpected response in Query RSP: %x\n", in ufshcd_dev_cmd_completion()
3151 err = -EPERM; in ufshcd_dev_cmd_completion()
3152 dev_err(hba->dev, "%s: Reject UPIU not fully implemented\n", in ufshcd_dev_cmd_completion()
3156 if (hba->dev_cmd.type != DEV_CMD_TYPE_RPMB) { in ufshcd_dev_cmd_completion()
3157 err = -EINVAL; in ufshcd_dev_cmd_completion()
3158 dev_err(hba->dev, "%s: unexpected response %x\n", __func__, resp); in ufshcd_dev_cmd_completion()
3162 err = -EINVAL; in ufshcd_dev_cmd_completion()
3163 dev_err(hba->dev, "%s: Invalid device management cmd response: %x\n", in ufshcd_dev_cmd_completion()
3180 time_left = wait_for_completion_timeout(&hba->dev_cmd.complete, in ufshcd_wait_for_dev_cmd()
3188 err = -ETIMEDOUT; in ufshcd_wait_for_dev_cmd()
3189 dev_dbg(hba->dev, "%s: dev_cmd request timedout, tag %d\n", in ufshcd_wait_for_dev_cmd()
3190 __func__, lrbp->task_tag); in ufshcd_wait_for_dev_cmd()
3193 if (hba->mcq_enabled) { in ufshcd_wait_for_dev_cmd()
3195 if (ufshcd_clear_cmd(hba, lrbp->task_tag) == 0) in ufshcd_wait_for_dev_cmd()
3196 err = -EAGAIN; in ufshcd_wait_for_dev_cmd()
3201 if (ufshcd_clear_cmd(hba, lrbp->task_tag) == 0) { in ufshcd_wait_for_dev_cmd()
3203 err = -EAGAIN; in ufshcd_wait_for_dev_cmd()
3209 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3210 pending = test_bit(lrbp->task_tag, in ufshcd_wait_for_dev_cmd()
3211 &hba->outstanding_reqs); in ufshcd_wait_for_dev_cmd()
3213 __clear_bit(lrbp->task_tag, in ufshcd_wait_for_dev_cmd()
3214 &hba->outstanding_reqs); in ufshcd_wait_for_dev_cmd()
3215 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3226 dev_err(hba->dev, "%s: failed to clear tag %d\n", in ufshcd_wait_for_dev_cmd()
3227 __func__, lrbp->task_tag); in ufshcd_wait_for_dev_cmd()
3229 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3230 pending = test_bit(lrbp->task_tag, in ufshcd_wait_for_dev_cmd()
3231 &hba->outstanding_reqs); in ufshcd_wait_for_dev_cmd()
3232 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3251 mutex_lock(&hba->dev_cmd.lock); in ufshcd_dev_man_lock()
3252 down_read(&hba->clk_scaling_lock); in ufshcd_dev_man_lock()
3257 up_read(&hba->clk_scaling_lock); in ufshcd_dev_man_unlock()
3258 mutex_unlock(&hba->dev_cmd.lock); in ufshcd_dev_man_unlock()
3267 ufshcd_add_query_upiu_trace(hba, UFS_QUERY_SEND, lrbp->ucd_req_ptr); in ufshcd_issue_dev_cmd()
3268 ufshcd_send_command(hba, tag, hba->dev_cmd_queue); in ufshcd_issue_dev_cmd()
3272 (struct utp_upiu_req *)lrbp->ucd_rsp_ptr); in ufshcd_issue_dev_cmd()
3278 * ufshcd_exec_dev_cmd - API for sending device management requests
3286 * it is expected you hold the hba->dev_cmd.lock mutex.
3291 const u32 tag = hba->reserved_slot; in ufshcd_exec_dev_cmd()
3292 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_exec_dev_cmd()
3295 /* Protects use of hba->reserved_slot. */ in ufshcd_exec_dev_cmd()
3296 lockdep_assert_held(&hba->dev_cmd.lock); in ufshcd_exec_dev_cmd()
3306 * ufshcd_init_query() - init the query response and request parameters
3307 * @hba: per-adapter instance
3319 *request = &hba->dev_cmd.query.request; in ufshcd_init_query()
3320 *response = &hba->dev_cmd.query.response; in ufshcd_init_query()
3323 (*request)->upiu_req.opcode = opcode; in ufshcd_init_query()
3324 (*request)->upiu_req.idn = idn; in ufshcd_init_query()
3325 (*request)->upiu_req.index = index; in ufshcd_init_query()
3326 (*request)->upiu_req.selector = selector; in ufshcd_init_query()
3338 dev_dbg(hba->dev, in ufshcd_query_flag_retry()
3346 dev_err(hba->dev, in ufshcd_query_flag_retry()
3353 * ufshcd_query_flag() - API function for sending flag query requests
3354 * @hba: per-adapter instance
3360 * Return: 0 for success, non-zero in case of failure.
3381 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in ufshcd_query_flag()
3384 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in ufshcd_query_flag()
3387 dev_err(hba->dev, "%s: Invalid argument for read request\n", in ufshcd_query_flag()
3389 err = -EINVAL; in ufshcd_query_flag()
3394 dev_err(hba->dev, in ufshcd_query_flag()
3397 err = -EINVAL; in ufshcd_query_flag()
3404 dev_err(hba->dev, in ufshcd_query_flag()
3411 *flag_res = (be32_to_cpu(response->upiu_res.value) & in ufshcd_query_flag()
3420 * ufshcd_query_attr - API function for sending attribute requests
3421 * @hba: per-adapter instance
3428 * Return: 0 for success, non-zero in case of failure.
3440 dev_err(hba->dev, "%s: attribute value required for opcode 0x%x\n", in ufshcd_query_attr()
3442 return -EINVAL; in ufshcd_query_attr()
3452 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in ufshcd_query_attr()
3453 request->upiu_req.value = cpu_to_be32(*attr_val); in ufshcd_query_attr()
3456 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in ufshcd_query_attr()
3459 dev_err(hba->dev, "%s: Expected query attr opcode but got = 0x%.2x\n", in ufshcd_query_attr()
3461 err = -EINVAL; in ufshcd_query_attr()
3468 dev_err(hba->dev, "%s: opcode 0x%.2x for idn %d failed, index %d, err = %d\n", in ufshcd_query_attr()
3473 *attr_val = be32_to_cpu(response->upiu_res.value); in ufshcd_query_attr()
3481 * ufshcd_query_attr_retry() - API function for sending query
3483 * @hba: per-adapter instance
3491 * Return: 0 for success, non-zero in case of failure.
3500 for (retries = QUERY_REQ_RETRIES; retries > 0; retries--) { in ufshcd_query_attr_retry()
3504 dev_dbg(hba->dev, "%s: failed with error %d, retries %d\n", in ufshcd_query_attr_retry()
3511 dev_err(hba->dev, in ufshcd_query_attr_retry()
3528 dev_err(hba->dev, "%s: descriptor buffer required for opcode 0x%x\n", in __ufshcd_query_descriptor()
3530 return -EINVAL; in __ufshcd_query_descriptor()
3534 dev_err(hba->dev, "%s: descriptor buffer size (%d) is out of range\n", in __ufshcd_query_descriptor()
3536 return -EINVAL; in __ufshcd_query_descriptor()
3543 hba->dev_cmd.query.descriptor = desc_buf; in __ufshcd_query_descriptor()
3544 request->upiu_req.length = cpu_to_be16(*buf_len); in __ufshcd_query_descriptor()
3548 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in __ufshcd_query_descriptor()
3551 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in __ufshcd_query_descriptor()
3554 dev_err(hba->dev, in __ufshcd_query_descriptor()
3557 err = -EINVAL; in __ufshcd_query_descriptor()
3564 dev_err(hba->dev, "%s: opcode 0x%.2x for idn %d failed, index %d, err = %d\n", in __ufshcd_query_descriptor()
3569 *buf_len = be16_to_cpu(response->upiu_res.length); in __ufshcd_query_descriptor()
3572 hba->dev_cmd.query.descriptor = NULL; in __ufshcd_query_descriptor()
3578 * ufshcd_query_descriptor_retry - API function for sending descriptor requests
3579 * @hba: per-adapter instance
3590 * Return: 0 for success, non-zero in case of failure.
3601 for (retries = QUERY_REQ_RETRIES; retries > 0; retries--) { in ufshcd_query_descriptor_retry()
3604 if (!err || err == -EINVAL) in ufshcd_query_descriptor_retry()
3612 * ufshcd_read_desc_param - read the specified descriptor parameter
3620 * Return: 0 in case of success, non-zero otherwise.
3636 return -EINVAL; in ufshcd_read_desc_param()
3642 return -ENOMEM; in ufshcd_read_desc_param()
3653 …dev_err(hba->dev, "%s: Failed reading descriptor. desc_id %d, desc_index %d, param_offset %d, ret … in ufshcd_read_desc_param()
3662 dev_err(hba->dev, "%s: Invalid offset 0x%x in descriptor IDN 0x%x, length 0x%x\n", in ufshcd_read_desc_param()
3664 ret = -EINVAL; in ufshcd_read_desc_param()
3670 dev_err(hba->dev, "%s: invalid desc_id %d in descriptor header\n", in ufshcd_read_desc_param()
3672 ret = -EINVAL; in ufshcd_read_desc_param()
3679 ret = -EINVAL; in ufshcd_read_desc_param()
3682 min_t(u32, param_size, buff_len - param_offset)); in ufshcd_read_desc_param()
3691 * struct uc_string_id - unicode string
3703 /* replace non-printable or non-ASCII characters with spaces */
3710 * ufshcd_read_string_desc - read string descriptor
3720 * * -ENOMEM: on allocation failure
3721 * * -EINVAL: on a wrong parameter
3731 return -EINVAL; in ufshcd_read_string_desc()
3735 return -ENOMEM; in ufshcd_read_string_desc()
3740 dev_err(hba->dev, "Reading String Desc failed after %d retries. err = %d\n", in ufshcd_read_string_desc()
3746 if (uc_str->len <= QUERY_DESC_HDR_SIZE) { in ufshcd_read_string_desc()
3747 dev_dbg(hba->dev, "String Desc is of zero length\n"); in ufshcd_read_string_desc()
3757 ascii_len = (uc_str->len - QUERY_DESC_HDR_SIZE) / 2 + 1; in ufshcd_read_string_desc()
3760 ret = -ENOMEM; in ufshcd_read_string_desc()
3766 * we need to convert to utf-8 so it can be displayed in ufshcd_read_string_desc()
3768 ret = utf16s_to_utf8s(uc_str->uc, in ufshcd_read_string_desc()
3769 uc_str->len - QUERY_DESC_HDR_SIZE, in ufshcd_read_string_desc()
3770 UTF16_BIG_ENDIAN, str, ascii_len - 1); in ufshcd_read_string_desc()
3772 /* replace non-printable or non-ASCII characters with spaces */ in ufshcd_read_string_desc()
3779 str = kmemdup(uc_str, uc_str->len, GFP_KERNEL); in ufshcd_read_string_desc()
3781 ret = -ENOMEM; in ufshcd_read_string_desc()
3784 ret = uc_str->len; in ufshcd_read_string_desc()
3793 * ufshcd_read_unit_desc_param - read the specified unit descriptor parameter
3800 * Return: 0 in case of success, non-zero otherwise.
3812 if (!ufs_is_valid_unit_desc_lun(&hba->dev_info, lun)) in ufshcd_read_unit_desc_param()
3813 return -EOPNOTSUPP; in ufshcd_read_unit_desc_param()
3824 if (hba->dev_info.wspecversion >= 0x300) { in ufshcd_get_ref_clk_gating_wait()
3829 dev_err(hba->dev, "Failed reading bRefClkGatingWait. err = %d, use default %uus\n", in ufshcd_get_ref_clk_gating_wait()
3834 dev_err(hba->dev, "Undefined ref clk gating wait time, use default %uus\n", in ufshcd_get_ref_clk_gating_wait()
3838 hba->dev_info.clk_gating_wait_us = gating_wait; in ufshcd_get_ref_clk_gating_wait()
3845 * ufshcd_memory_alloc - allocate memory for host memory space data structures
3855 * Return: 0 for success, non-zero in case of failure.
3862 ucdl_size = ufshcd_get_ucd_size(hba) * hba->nutrs; in ufshcd_memory_alloc()
3863 hba->ucdl_base_addr = dmam_alloc_coherent(hba->dev, in ufshcd_memory_alloc()
3865 &hba->ucdl_dma_addr, in ufshcd_memory_alloc()
3871 if (!hba->ucdl_base_addr || in ufshcd_memory_alloc()
3872 WARN_ON(hba->ucdl_dma_addr & (128 - 1))) { in ufshcd_memory_alloc()
3873 dev_err(hba->dev, in ufshcd_memory_alloc()
3882 utrdl_size = (sizeof(struct utp_transfer_req_desc) * hba->nutrs); in ufshcd_memory_alloc()
3883 hba->utrdl_base_addr = dmam_alloc_coherent(hba->dev, in ufshcd_memory_alloc()
3885 &hba->utrdl_dma_addr, in ufshcd_memory_alloc()
3887 if (!hba->utrdl_base_addr || in ufshcd_memory_alloc()
3888 WARN_ON(hba->utrdl_dma_addr & (SZ_1K - 1))) { in ufshcd_memory_alloc()
3889 dev_err(hba->dev, in ufshcd_memory_alloc()
3900 if (hba->utmrdl_base_addr) in ufshcd_memory_alloc()
3906 utmrdl_size = sizeof(struct utp_task_req_desc) * hba->nutmrs; in ufshcd_memory_alloc()
3907 hba->utmrdl_base_addr = dmam_alloc_coherent(hba->dev, in ufshcd_memory_alloc()
3909 &hba->utmrdl_dma_addr, in ufshcd_memory_alloc()
3911 if (!hba->utmrdl_base_addr || in ufshcd_memory_alloc()
3912 WARN_ON(hba->utmrdl_dma_addr & (SZ_1K - 1))) { in ufshcd_memory_alloc()
3913 dev_err(hba->dev, in ufshcd_memory_alloc()
3920 hba->lrb = devm_kcalloc(hba->dev, in ufshcd_memory_alloc()
3921 hba->nutrs, sizeof(struct ufshcd_lrb), in ufshcd_memory_alloc()
3923 if (!hba->lrb) { in ufshcd_memory_alloc()
3924 dev_err(hba->dev, "LRB Memory allocation failed\n"); in ufshcd_memory_alloc()
3929 return -ENOMEM; in ufshcd_memory_alloc()
3933 * ufshcd_host_memory_configure - configure local reference block with
3955 utrdlp = hba->utrdl_base_addr; in ufshcd_host_memory_configure()
3963 cmd_desc_dma_addr = hba->ucdl_dma_addr; in ufshcd_host_memory_configure()
3965 for (i = 0; i < hba->nutrs; i++) { in ufshcd_host_memory_configure()
3973 if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) { in ufshcd_host_memory_configure()
3989 ufshcd_init_lrb(hba, &hba->lrb[i], i); in ufshcd_host_memory_configure()
3994 * ufshcd_dme_link_startup - Notify Unipro to perform link startup
4002 * Return: 0 on success, non-zero value on failure.
4013 dev_dbg(hba->dev, in ufshcd_dme_link_startup()
4014 "dme-link-startup: error code %d\n", ret); in ufshcd_dme_link_startup()
4018 * ufshcd_dme_reset - UIC command for DME_RESET
4024 * Return: 0 on success, non-zero value on failure.
4035 dev_err(hba->dev, in ufshcd_dme_reset()
4036 "dme-reset: error code %d\n", ret); in ufshcd_dme_reset()
4059 * ufshcd_dme_enable - UIC command for DME_ENABLE
4064 * Return: 0 on success, non-zero value on failure.
4075 dev_err(hba->dev, in ufshcd_dme_enable()
4076 "dme-enable: error code %d\n", ret); in ufshcd_dme_enable()
4087 if (!(hba->quirks & UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS)) in ufshcd_add_delay_before_dme_cmd()
4094 if (unlikely(!ktime_to_us(hba->last_dme_cmd_tstamp))) { in ufshcd_add_delay_before_dme_cmd()
4100 hba->last_dme_cmd_tstamp)); in ufshcd_add_delay_before_dme_cmd()
4104 MIN_DELAY_BEFORE_DME_CMDS_US - delta; in ufshcd_add_delay_before_dme_cmd()
4115 hba->last_dme_cmd_tstamp = ktime_get(); in ufshcd_add_delay_before_dme_cmd()
4119 * ufshcd_dme_set_attr - UIC command for DME_SET, DME_PEER_SET
4126 * Return: 0 on success, non-zero value on failure.
4138 "dme-set", in ufshcd_dme_set_attr()
4139 "dme-peer-set" in ufshcd_dme_set_attr()
4149 dev_dbg(hba->dev, "%s: attr-id 0x%x val 0x%x error code %d\n", in ufshcd_dme_set_attr()
4151 } while (ret && peer && --retries); in ufshcd_dme_set_attr()
4154 dev_err(hba->dev, "%s: attr-id 0x%x val 0x%x failed %d retries\n", in ufshcd_dme_set_attr()
4156 UFS_UIC_COMMAND_RETRIES - retries); in ufshcd_dme_set_attr()
4163 * ufshcd_dme_get_attr - UIC command for DME_GET, DME_PEER_GET
4169 * Return: 0 on success, non-zero value on failure.
4179 "dme-get", in ufshcd_dme_get_attr()
4180 "dme-peer-get" in ufshcd_dme_get_attr()
4189 if (peer && (hba->quirks & UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE)) { in ufshcd_dme_get_attr()
4190 orig_pwr_info = hba->pwr_info; in ufshcd_dme_get_attr()
4215 dev_dbg(hba->dev, "%s: attr-id 0x%x error code %d\n", in ufshcd_dme_get_attr()
4217 } while (ret && peer && --retries); in ufshcd_dme_get_attr()
4220 dev_err(hba->dev, "%s: attr-id 0x%x failed %d retries\n", in ufshcd_dme_get_attr()
4222 UFS_UIC_COMMAND_RETRIES - retries); in ufshcd_dme_get_attr()
4227 if (peer && (hba->quirks & UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE) in ufshcd_dme_get_attr()
4236 * ufshcd_uic_pwr_ctrl - executes UIC commands (which affects the link power
4249 * Return: 0 on success, non-zero value on failure.
4259 mutex_lock(&hba->uic_cmd_mutex); in ufshcd_uic_pwr_ctrl()
4262 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4264 ret = -ENOLINK; in ufshcd_uic_pwr_ctrl()
4267 hba->uic_async_done = &uic_async_done; in ufshcd_uic_pwr_ctrl()
4277 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4280 dev_err(hba->dev, in ufshcd_uic_pwr_ctrl()
4282 cmd->command, cmd->argument3, ret); in ufshcd_uic_pwr_ctrl()
4286 if (!wait_for_completion_timeout(hba->uic_async_done, in ufshcd_uic_pwr_ctrl()
4288 dev_err(hba->dev, in ufshcd_uic_pwr_ctrl()
4290 cmd->command, cmd->argument3); in ufshcd_uic_pwr_ctrl()
4292 if (!cmd->cmd_active) { in ufshcd_uic_pwr_ctrl()
4293 dev_err(hba->dev, "%s: Power Mode Change operation has been completed, go check UPMCRS\n", in ufshcd_uic_pwr_ctrl()
4298 ret = -ETIMEDOUT; in ufshcd_uic_pwr_ctrl()
4305 dev_err(hba->dev, in ufshcd_uic_pwr_ctrl()
4307 cmd->command, status); in ufshcd_uic_pwr_ctrl()
4308 ret = (status != PWR_OK) ? status : -1; in ufshcd_uic_pwr_ctrl()
4317 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4318 hba->active_uic_cmd = NULL; in ufshcd_uic_pwr_ctrl()
4319 hba->uic_async_done = NULL; in ufshcd_uic_pwr_ctrl()
4327 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4328 mutex_unlock(&hba->uic_cmd_mutex); in ufshcd_uic_pwr_ctrl()
4334 * ufshcd_send_bsg_uic_cmd - Send UIC commands requested via BSG layer and retrieve the result
4344 if (hba->quirks & UFSHCD_QUIRK_BROKEN_UIC_CMD) in ufshcd_send_bsg_uic_cmd()
4349 if (uic_cmd->argument1 == UIC_ARG_MIB(PA_PWRMODE) && in ufshcd_send_bsg_uic_cmd()
4350 uic_cmd->command == UIC_CMD_DME_SET) { in ufshcd_send_bsg_uic_cmd()
4355 mutex_lock(&hba->uic_cmd_mutex); in ufshcd_send_bsg_uic_cmd()
4362 mutex_unlock(&hba->uic_cmd_mutex); in ufshcd_send_bsg_uic_cmd()
4370 * ufshcd_uic_change_pwr_mode - Perform the UIC power mode chage
4375 * Return: 0 on success, non-zero value on failure.
4386 if (hba->quirks & UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP) { in ufshcd_uic_change_pwr_mode()
4390 dev_err(hba->dev, "%s: failed to enable PA_RXHSUNTERMCAP ret %d\n", in ufshcd_uic_change_pwr_mode()
4410 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_link_recovery()
4411 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_link_recovery()
4413 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_link_recovery()
4420 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_link_recovery()
4422 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_link_recovery()
4424 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_link_recovery()
4427 dev_err(hba->dev, "%s: link recovery failed, err %d", in ufshcd_link_recovery()
4449 dev_err(hba->dev, "%s: hibern8 enter failed. ret = %d\n", in ufshcd_uic_hibern8_enter()
4474 dev_err(hba->dev, "%s: hibern8 exit failed. ret = %d\n", in ufshcd_uic_hibern8_exit()
4479 hba->ufs_stats.last_hibern8_exit_tstamp = local_clock(); in ufshcd_uic_hibern8_exit()
4480 hba->ufs_stats.hibern8_exit_cnt++; in ufshcd_uic_hibern8_exit()
4492 ufshcd_writel(hba, hba->ahit, REG_AUTO_HIBERNATE_IDLE_TIMER); in ufshcd_configure_auto_hibern8()
4497 const u32 cur_ahit = READ_ONCE(hba->ahit); in ufshcd_auto_hibern8_update()
4502 WRITE_ONCE(hba->ahit, ahit); in ufshcd_auto_hibern8_update()
4503 if (!pm_runtime_suspended(&hba->ufs_device_wlun->sdev_gendev)) { in ufshcd_auto_hibern8_update()
4514 * ufshcd_init_pwr_info - setting the POR (power on reset)
4516 * @hba: per-adapter instance
4520 hba->pwr_info.gear_rx = UFS_PWM_G1; in ufshcd_init_pwr_info()
4521 hba->pwr_info.gear_tx = UFS_PWM_G1; in ufshcd_init_pwr_info()
4522 hba->pwr_info.lane_rx = UFS_LANE_1; in ufshcd_init_pwr_info()
4523 hba->pwr_info.lane_tx = UFS_LANE_1; in ufshcd_init_pwr_info()
4524 hba->pwr_info.pwr_rx = SLOWAUTO_MODE; in ufshcd_init_pwr_info()
4525 hba->pwr_info.pwr_tx = SLOWAUTO_MODE; in ufshcd_init_pwr_info()
4526 hba->pwr_info.hs_rate = 0; in ufshcd_init_pwr_info()
4530 * ufshcd_get_max_pwr_mode - reads the max power mode negotiated with device
4531 * @hba: per-adapter instance
4537 struct ufs_pa_layer_attr *pwr_info = &hba->max_pwr_info.info; in ufshcd_get_max_pwr_mode()
4539 if (hba->max_pwr_info.is_valid) in ufshcd_get_max_pwr_mode()
4542 if (hba->quirks & UFSHCD_QUIRK_HIBERN_FASTAUTO) { in ufshcd_get_max_pwr_mode()
4543 pwr_info->pwr_tx = FASTAUTO_MODE; in ufshcd_get_max_pwr_mode()
4544 pwr_info->pwr_rx = FASTAUTO_MODE; in ufshcd_get_max_pwr_mode()
4546 pwr_info->pwr_tx = FAST_MODE; in ufshcd_get_max_pwr_mode()
4547 pwr_info->pwr_rx = FAST_MODE; in ufshcd_get_max_pwr_mode()
4549 pwr_info->hs_rate = PA_HS_MODE_B; in ufshcd_get_max_pwr_mode()
4553 &pwr_info->lane_rx); in ufshcd_get_max_pwr_mode()
4555 &pwr_info->lane_tx); in ufshcd_get_max_pwr_mode()
4557 if (!pwr_info->lane_rx || !pwr_info->lane_tx) { in ufshcd_get_max_pwr_mode()
4558 dev_err(hba->dev, "%s: invalid connected lanes value. rx=%d, tx=%d\n", in ufshcd_get_max_pwr_mode()
4560 pwr_info->lane_rx, in ufshcd_get_max_pwr_mode()
4561 pwr_info->lane_tx); in ufshcd_get_max_pwr_mode()
4562 return -EINVAL; in ufshcd_get_max_pwr_mode()
4565 if (pwr_info->lane_rx != pwr_info->lane_tx) { in ufshcd_get_max_pwr_mode()
4566 dev_err(hba->dev, "%s: asymmetric connected lanes. rx=%d, tx=%d\n", in ufshcd_get_max_pwr_mode()
4568 pwr_info->lane_rx, in ufshcd_get_max_pwr_mode()
4569 pwr_info->lane_tx); in ufshcd_get_max_pwr_mode()
4570 return -EINVAL; in ufshcd_get_max_pwr_mode()
4578 ufshcd_dme_get(hba, UIC_ARG_MIB(PA_MAXRXHSGEAR), &pwr_info->gear_rx); in ufshcd_get_max_pwr_mode()
4579 if (!pwr_info->gear_rx) { in ufshcd_get_max_pwr_mode()
4581 &pwr_info->gear_rx); in ufshcd_get_max_pwr_mode()
4582 if (!pwr_info->gear_rx) { in ufshcd_get_max_pwr_mode()
4583 dev_err(hba->dev, "%s: invalid max pwm rx gear read = %d\n", in ufshcd_get_max_pwr_mode()
4584 __func__, pwr_info->gear_rx); in ufshcd_get_max_pwr_mode()
4585 return -EINVAL; in ufshcd_get_max_pwr_mode()
4587 pwr_info->pwr_rx = SLOW_MODE; in ufshcd_get_max_pwr_mode()
4591 &pwr_info->gear_tx); in ufshcd_get_max_pwr_mode()
4592 if (!pwr_info->gear_tx) { in ufshcd_get_max_pwr_mode()
4594 &pwr_info->gear_tx); in ufshcd_get_max_pwr_mode()
4595 if (!pwr_info->gear_tx) { in ufshcd_get_max_pwr_mode()
4596 dev_err(hba->dev, "%s: invalid max pwm tx gear read = %d\n", in ufshcd_get_max_pwr_mode()
4597 __func__, pwr_info->gear_tx); in ufshcd_get_max_pwr_mode()
4598 return -EINVAL; in ufshcd_get_max_pwr_mode()
4600 pwr_info->pwr_tx = SLOW_MODE; in ufshcd_get_max_pwr_mode()
4603 hba->max_pwr_info.is_valid = true; in ufshcd_get_max_pwr_mode()
4613 if (!hba->force_pmc && in ufshcd_change_power_mode()
4614 pwr_mode->gear_rx == hba->pwr_info.gear_rx && in ufshcd_change_power_mode()
4615 pwr_mode->gear_tx == hba->pwr_info.gear_tx && in ufshcd_change_power_mode()
4616 pwr_mode->lane_rx == hba->pwr_info.lane_rx && in ufshcd_change_power_mode()
4617 pwr_mode->lane_tx == hba->pwr_info.lane_tx && in ufshcd_change_power_mode()
4618 pwr_mode->pwr_rx == hba->pwr_info.pwr_rx && in ufshcd_change_power_mode()
4619 pwr_mode->pwr_tx == hba->pwr_info.pwr_tx && in ufshcd_change_power_mode()
4620 pwr_mode->hs_rate == hba->pwr_info.hs_rate) { in ufshcd_change_power_mode()
4621 dev_dbg(hba->dev, "%s: power already configured\n", __func__); in ufshcd_change_power_mode()
4627 * - PA_RXGEAR, PA_ACTIVERXDATALANES, PA_RXTERMINATION, in ufshcd_change_power_mode()
4628 * - PA_TXGEAR, PA_ACTIVETXDATALANES, PA_TXTERMINATION, in ufshcd_change_power_mode()
4629 * - PA_HSSERIES in ufshcd_change_power_mode()
4631 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_RXGEAR), pwr_mode->gear_rx); in ufshcd_change_power_mode()
4633 pwr_mode->lane_rx); in ufshcd_change_power_mode()
4634 if (pwr_mode->pwr_rx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4635 pwr_mode->pwr_rx == FAST_MODE) in ufshcd_change_power_mode()
4640 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TXGEAR), pwr_mode->gear_tx); in ufshcd_change_power_mode()
4642 pwr_mode->lane_tx); in ufshcd_change_power_mode()
4643 if (pwr_mode->pwr_tx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4644 pwr_mode->pwr_tx == FAST_MODE) in ufshcd_change_power_mode()
4649 if (pwr_mode->pwr_rx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4650 pwr_mode->pwr_tx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4651 pwr_mode->pwr_rx == FAST_MODE || in ufshcd_change_power_mode()
4652 pwr_mode->pwr_tx == FAST_MODE) in ufshcd_change_power_mode()
4654 pwr_mode->hs_rate); in ufshcd_change_power_mode()
4656 if (!(hba->quirks & UFSHCD_QUIRK_SKIP_DEF_UNIPRO_TIMEOUT_SETTING)) { in ufshcd_change_power_mode()
4678 ret = ufshcd_uic_change_pwr_mode(hba, pwr_mode->pwr_rx << 4 in ufshcd_change_power_mode()
4679 | pwr_mode->pwr_tx); in ufshcd_change_power_mode()
4682 dev_err(hba->dev, in ufshcd_change_power_mode()
4685 memcpy(&hba->pwr_info, pwr_mode, in ufshcd_change_power_mode()
4693 * ufshcd_config_pwr_mode - configure a new power mode
4694 * @hba: per-adapter instance
4722 * ufshcd_complete_dev_init() - checks device readiness
4723 * @hba: per-adapter instance
4738 dev_err(hba->dev, in ufshcd_complete_dev_init()
4755 dev_err(hba->dev, in ufshcd_complete_dev_init()
4759 dev_err(hba->dev, in ufshcd_complete_dev_init()
4762 err = -EBUSY; in ufshcd_complete_dev_init()
4769 * ufshcd_make_hba_operational - Make UFS controller operational
4776 * 4. Configure run-stop-registers
4778 * Return: 0 on success, non-zero value on failure.
4790 ufshcd_config_intr_aggr(hba, hba->nutrs - 1, INT_AGGR_DEF_TO); in ufshcd_make_hba_operational()
4795 ufshcd_writel(hba, lower_32_bits(hba->utrdl_dma_addr), in ufshcd_make_hba_operational()
4797 ufshcd_writel(hba, upper_32_bits(hba->utrdl_dma_addr), in ufshcd_make_hba_operational()
4799 ufshcd_writel(hba, lower_32_bits(hba->utmrdl_dma_addr), in ufshcd_make_hba_operational()
4801 ufshcd_writel(hba, upper_32_bits(hba->utmrdl_dma_addr), in ufshcd_make_hba_operational()
4811 dev_err(hba->dev, in ufshcd_make_hba_operational()
4813 err = -EIO; in ufshcd_make_hba_operational()
4821 * ufshcd_hba_stop - Send controller to reset state
4835 dev_err(hba->dev, "%s: Controller disable failed\n", __func__); in ufshcd_hba_stop()
4840 * ufshcd_hba_execute_hce - initialize the controller
4847 * Return: 0 on success, non-zero value on failure.
4853 for (retry = 3; retry > 0; retry--) { in ufshcd_hba_execute_hce()
4868 * During initialization the HCE bit value changes from 1->0->1. in ufshcd_hba_execute_hce()
4876 ufshcd_delay_us(hba->vps->hba_enable_delay_us, 100); in ufshcd_hba_execute_hce()
4883 dev_err(hba->dev, "Enabling the controller failed\n"); in ufshcd_hba_execute_hce()
4887 return -EIO; in ufshcd_hba_execute_hce()
4901 if (hba->quirks & UFSHCI_QUIRK_BROKEN_HCE) { in ufshcd_hba_enable()
4909 dev_err(hba->dev, "DME_RESET failed\n"); in ufshcd_hba_enable()
4915 dev_err(hba->dev, "Enabling DME failed\n"); in ufshcd_hba_enable()
4950 dev_err(hba->dev, "%s: TX LCC Disable failed, peer = %d, lane = %d, err = %d", in ufshcd_disable_tx_lcc()
4971 e = &hba->ufs_stats.event[id]; in ufshcd_update_evt_hist()
4972 e->val[e->pos] = val; in ufshcd_update_evt_hist()
4973 e->tstamp[e->pos] = local_clock(); in ufshcd_update_evt_hist()
4974 e->cnt += 1; in ufshcd_update_evt_hist()
4975 e->pos = (e->pos + 1) % UFS_EVENT_HIST_LENGTH; in ufshcd_update_evt_hist()
4982 * ufshcd_link_startup - Initialize unipro link startup
4985 * Return: 0 for success, non-zero in case of failure.
5006 /* check if device is detected by inter-connect layer */ in ufshcd_link_startup()
5011 dev_err(hba->dev, "%s: Device not present\n", __func__); in ufshcd_link_startup()
5012 ret = -ENXIO; in ufshcd_link_startup()
5019 * succeeds. So reset the local Uni-Pro and try again. in ufshcd_link_startup()
5027 } while (ret && retries--); in ufshcd_link_startup()
5043 /* Mark that link is up in PWM-G1, 1-lane, SLOW-AUTO mode */ in ufshcd_link_startup()
5047 if (hba->quirks & UFSHCD_QUIRK_BROKEN_LCC) { in ufshcd_link_startup()
5063 dev_err(hba->dev, "link startup failed %d\n", ret); in ufshcd_link_startup()
5072 * ufshcd_verify_dev_init() - Verify device initialization
5073 * @hba: per-adapter instance
5090 for (retries = NOP_OUT_RETRIES; retries > 0; retries--) { in ufshcd_verify_dev_init()
5092 hba->nop_out_timeout); in ufshcd_verify_dev_init()
5094 if (!err || err == -ETIMEDOUT) in ufshcd_verify_dev_init()
5097 dev_dbg(hba->dev, "%s: error %d retrying\n", __func__, err); in ufshcd_verify_dev_init()
5103 dev_err(hba->dev, "%s: NOP OUT failed %d\n", __func__, err); in ufshcd_verify_dev_init()
5108 * ufshcd_setup_links - associate link b/w device wlun and other luns
5120 if (hba->ufs_device_wlun) { in ufshcd_setup_links()
5121 link = device_link_add(&sdev->sdev_gendev, in ufshcd_setup_links()
5122 &hba->ufs_device_wlun->sdev_gendev, in ufshcd_setup_links()
5125 dev_err(&sdev->sdev_gendev, "Failed establishing link - %s\n", in ufshcd_setup_links()
5126 dev_name(&hba->ufs_device_wlun->sdev_gendev)); in ufshcd_setup_links()
5129 hba->luns_avail--; in ufshcd_setup_links()
5131 if (hba->luns_avail == 1) { in ufshcd_setup_links()
5140 hba->luns_avail--; in ufshcd_setup_links()
5145 * ufshcd_lu_init - Initialize the relevant parameters of the LU
5146 * @hba: per-adapter instance
5152 u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun); in ufshcd_lu_init()
5153 u8 lun_qdepth = hba->nutrs; in ufshcd_lu_init()
5163 if (ret == -EOPNOTSUPP) in ufshcd_lu_init()
5172 * In per-LU queueing architecture, bLUQueueDepth will not be 0, then we will in ufshcd_lu_init()
5175 lun_qdepth = min_t(int, desc_buf[UNIT_DESC_PARAM_LU_Q_DEPTH], hba->nutrs); in ufshcd_lu_init()
5181 if (hba->dev_info.f_power_on_wp_en && lun < hba->dev_info.max_lu_supported && in ufshcd_lu_init()
5182 !hba->dev_info.is_lu_power_on_wp && in ufshcd_lu_init()
5184 hba->dev_info.is_lu_power_on_wp = true; in ufshcd_lu_init()
5189 hba->dev_info.b_advanced_rpmb_en = true; in ufshcd_lu_init()
5198 dev_dbg(hba->dev, "Set LU %x queue depth %d\n", lun, lun_qdepth); in ufshcd_lu_init()
5203 * ufshcd_sdev_init - handle initial SCSI device configurations
5212 hba = shost_priv(sdev->host); in ufshcd_sdev_init()
5215 sdev->use_10_for_ms = 1; in ufshcd_sdev_init()
5218 sdev->set_dbd_for_ms = 1; in ufshcd_sdev_init()
5221 sdev->allow_restart = 1; in ufshcd_sdev_init()
5224 sdev->no_report_opcodes = 1; in ufshcd_sdev_init()
5227 sdev->no_write_same = 1; in ufshcd_sdev_init()
5237 * ufshcd_change_queue_depth - change queue depth
5247 return scsi_change_queue_depth(sdev, min(depth, sdev->host->can_queue)); in ufshcd_change_queue_depth()
5251 * ufshcd_sdev_configure - adjust SCSI device configurations
5260 struct ufs_hba *hba = shost_priv(sdev->host); in ufshcd_sdev_configure()
5261 struct request_queue *q = sdev->request_queue; in ufshcd_sdev_configure()
5263 lim->dma_pad_mask = PRDT_DATA_BYTE_COUNT_PAD - 1; in ufshcd_sdev_configure()
5266 * Block runtime-pm until all consumers are added. in ufshcd_sdev_configure()
5270 pm_runtime_get_noresume(&sdev->sdev_gendev); in ufshcd_sdev_configure()
5272 sdev->rpm_autosuspend = 1; in ufshcd_sdev_configure()
5274 * Do not print messages during runtime PM to avoid never-ending cycles in ufshcd_sdev_configure()
5278 sdev->silence_suspend = 1; in ufshcd_sdev_configure()
5280 if (hba->vops && hba->vops->config_scsi_dev) in ufshcd_sdev_configure()
5281 hba->vops->config_scsi_dev(sdev); in ufshcd_sdev_configure()
5289 * ufshcd_sdev_destroy - remove SCSI device configurations
5297 hba = shost_priv(sdev->host); in ufshcd_sdev_destroy()
5300 if (ufshcd_scsi_to_upiu_lun(sdev->lun) == UFS_UPIU_UFS_DEVICE_WLUN) { in ufshcd_sdev_destroy()
5301 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5302 hba->ufs_device_wlun = NULL; in ufshcd_sdev_destroy()
5303 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5304 } else if (hba->ufs_device_wlun) { in ufshcd_sdev_destroy()
5308 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5309 if (hba->ufs_device_wlun) { in ufshcd_sdev_destroy()
5310 supplier = &hba->ufs_device_wlun->sdev_gendev; in ufshcd_sdev_destroy()
5313 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5321 device_link_remove(&sdev->sdev_gendev, supplier); in ufshcd_sdev_destroy()
5328 * ufshcd_scsi_cmd_status - Update SCSI command result based on SCSI status
5361 * ufshcd_transfer_rsp_status - Get overall status of the response
5378 upiu_flags = lrbp->ucd_rsp_ptr->header.flags; in ufshcd_transfer_rsp_status()
5379 resid = be32_to_cpu(lrbp->ucd_rsp_ptr->sr.residual_transfer_count); in ufshcd_transfer_rsp_status()
5385 scsi_set_resid(lrbp->cmd, resid); in ufshcd_transfer_rsp_status()
5390 if (hba->quirks & UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR) { in ufshcd_transfer_rsp_status()
5391 if (lrbp->ucd_rsp_ptr->header.response || in ufshcd_transfer_rsp_status()
5392 lrbp->ucd_rsp_ptr->header.status) in ufshcd_transfer_rsp_status()
5398 hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); in ufshcd_transfer_rsp_status()
5399 switch (ufshcd_get_req_rsp(lrbp->ucd_rsp_ptr)) { in ufshcd_transfer_rsp_status()
5405 scsi_status = lrbp->ucd_rsp_ptr->header.status; in ufshcd_transfer_rsp_status()
5420 if (!hba->pm_op_in_progress && in ufshcd_transfer_rsp_status()
5422 ufshcd_is_exception_event(lrbp->ucd_rsp_ptr)) in ufshcd_transfer_rsp_status()
5424 schedule_work(&hba->eeh_work); in ufshcd_transfer_rsp_status()
5429 dev_err(hba->dev, in ufshcd_transfer_rsp_status()
5433 dev_err(hba->dev, in ufshcd_transfer_rsp_status()
5443 dev_warn(hba->dev, in ufshcd_transfer_rsp_status()
5446 lrbp->task_tag); in ufshcd_transfer_rsp_status()
5459 dev_err(hba->dev, in ufshcd_transfer_rsp_status()
5461 ocs, lrbp->task_tag); in ufshcd_transfer_rsp_status()
5468 (host_byte(result) != DID_REQUEUE) && !hba->silence_err_logs) in ufshcd_transfer_rsp_status()
5469 ufshcd_print_tr(hba, lrbp->task_tag, true); in ufshcd_transfer_rsp_status()
5483 if (hba->active_uic_cmd && in ufshcd_is_auto_hibern8_error()
5484 (hba->active_uic_cmd->command == UIC_CMD_DME_HIBER_ENTER || in ufshcd_is_auto_hibern8_error()
5485 hba->active_uic_cmd->command == UIC_CMD_DME_HIBER_EXIT)) in ufshcd_is_auto_hibern8_error()
5492 * ufshcd_uic_cmd_compl - handle completion of uic command
5497 * IRQ_HANDLED - If interrupt is valid
5498 * IRQ_NONE - If invalid interrupt
5505 spin_lock(hba->host->host_lock); in ufshcd_uic_cmd_compl()
5506 cmd = hba->active_uic_cmd; in ufshcd_uic_cmd_compl()
5511 hba->errors |= (UFSHCD_UIC_HIBERN8_MASK & intr_status); in ufshcd_uic_cmd_compl()
5514 cmd->argument2 |= ufshcd_get_uic_cmd_result(hba); in ufshcd_uic_cmd_compl()
5515 cmd->argument3 = ufshcd_get_dme_attr_val(hba); in ufshcd_uic_cmd_compl()
5516 if (!hba->uic_async_done) in ufshcd_uic_cmd_compl()
5517 cmd->cmd_active = 0; in ufshcd_uic_cmd_compl()
5518 complete(&cmd->done); in ufshcd_uic_cmd_compl()
5522 if (intr_status & UFSHCD_UIC_PWR_MASK && hba->uic_async_done) { in ufshcd_uic_cmd_compl()
5523 cmd->cmd_active = 0; in ufshcd_uic_cmd_compl()
5524 complete(hba->uic_async_done); in ufshcd_uic_cmd_compl()
5532 spin_unlock(hba->host->host_lock); in ufshcd_uic_cmd_compl()
5541 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_release_scsi_cmd()
5550 * ufshcd_compl_one_cqe - handle a completion queue entry
5562 lrbp = &hba->lrb[task_tag]; in ufshcd_compl_one_cqe()
5563 lrbp->compl_time_stamp = ktime_get(); in ufshcd_compl_one_cqe()
5564 lrbp->compl_time_stamp_local_clock = local_clock(); in ufshcd_compl_one_cqe()
5565 cmd = lrbp->cmd; in ufshcd_compl_one_cqe()
5570 cmd->result = ufshcd_transfer_rsp_status(hba, lrbp, cqe); in ufshcd_compl_one_cqe()
5576 ocs = le32_to_cpu(cqe->status) & MASK_OCS; in ufshcd_compl_one_cqe()
5577 lrbp->utr_descriptor_ptr->header.ocs = ocs; in ufshcd_compl_one_cqe()
5579 complete(&hba->dev_cmd.complete); in ufshcd_compl_one_cqe()
5584 * __ufshcd_transfer_req_compl - handle SCSI and query command completion
5593 for_each_set_bit(tag, &completed_reqs, hba->nutrs) in __ufshcd_transfer_req_compl()
5599 UFSHCD_POLL_FROM_INTERRUPT_CONTEXT = -1
5607 for_each_set_bit(tag, completed_reqs, hba->nutrs) { in ufshcd_clear_polled()
5608 struct scsi_cmnd *cmd = hba->lrb[tag].cmd; in ufshcd_clear_polled()
5612 if (scsi_cmd_to_rq(cmd)->cmd_flags & REQ_POLLED) in ufshcd_clear_polled()
5628 if (hba->mcq_enabled) { in ufshcd_poll()
5629 hwq = &hba->uhq[queue_num]; in ufshcd_poll()
5634 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_poll()
5636 completed_reqs = ~tr_doorbell & hba->outstanding_reqs; in ufshcd_poll()
5637 WARN_ONCE(completed_reqs & ~hba->outstanding_reqs, in ufshcd_poll()
5639 hba->outstanding_reqs); in ufshcd_poll()
5644 hba->outstanding_reqs &= ~completed_reqs; in ufshcd_poll()
5645 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_poll()
5654 * ufshcd_mcq_compl_pending_transfer - MCQ mode function. It is
5673 for (tag = 0; tag < hba->nutrs; tag++) { in ufshcd_mcq_compl_pending_transfer()
5674 lrbp = &hba->lrb[tag]; in ufshcd_mcq_compl_pending_transfer()
5675 cmd = lrbp->cmd; in ufshcd_mcq_compl_pending_transfer()
5677 test_bit(SCMD_STATE_COMPLETE, &cmd->state)) in ufshcd_mcq_compl_pending_transfer()
5690 spin_lock_irqsave(&hwq->cq_lock, flags); in ufshcd_mcq_compl_pending_transfer()
5691 if (cmd && !test_bit(SCMD_STATE_COMPLETE, &cmd->state)) { in ufshcd_mcq_compl_pending_transfer()
5696 spin_unlock_irqrestore(&hwq->cq_lock, flags); in ufshcd_mcq_compl_pending_transfer()
5704 * ufshcd_transfer_req_compl - handle SCSI and query command completion
5708 * IRQ_HANDLED - If interrupt is valid
5709 * IRQ_NONE - If invalid interrupt
5721 !(hba->quirks & UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR)) in ufshcd_transfer_req_compl()
5731 ufshcd_poll(hba->host, UFSHCD_POLL_FROM_INTERRUPT_CONTEXT); in ufshcd_transfer_req_compl()
5747 mutex_lock(&hba->ee_ctrl_mutex); in ufshcd_write_ee_control()
5748 err = __ufshcd_write_ee_control(hba, hba->ee_ctrl_mask); in ufshcd_write_ee_control()
5749 mutex_unlock(&hba->ee_ctrl_mutex); in ufshcd_write_ee_control()
5751 dev_err(hba->dev, "%s: failed to write ee control %d\n", in ufshcd_write_ee_control()
5762 mutex_lock(&hba->ee_ctrl_mutex); in ufshcd_update_ee_control()
5765 if (ee_ctrl_mask != hba->ee_ctrl_mask) in ufshcd_update_ee_control()
5769 hba->ee_ctrl_mask = ee_ctrl_mask; in ufshcd_update_ee_control()
5772 mutex_unlock(&hba->ee_ctrl_mutex); in ufshcd_update_ee_control()
5777 * ufshcd_disable_ee - disable exception event
5778 * @hba: per-adapter instance
5784 * Return: zero on success, non-zero error value on failure.
5792 * ufshcd_enable_ee - enable exception event
5793 * @hba: per-adapter instance
5799 * Return: zero on success, non-zero error value on failure.
5807 * ufshcd_enable_auto_bkops - Allow device managed BKOPS
5808 * @hba: per-adapter instance
5815 * Return: zero on success, non-zero on failure.
5821 if (hba->auto_bkops_enabled) in ufshcd_enable_auto_bkops()
5827 dev_err(hba->dev, "%s: failed to enable bkops %d\n", in ufshcd_enable_auto_bkops()
5832 hba->auto_bkops_enabled = true; in ufshcd_enable_auto_bkops()
5838 dev_err(hba->dev, "%s: failed to disable exception event %d\n", in ufshcd_enable_auto_bkops()
5845 * ufshcd_disable_auto_bkops - block device in doing background operations
5846 * @hba: per-adapter instance
5850 * not-operable. Make sure to call ufshcd_enable_auto_bkops() whenever the
5854 * Return: zero on success, non-zero on failure.
5860 if (!hba->auto_bkops_enabled) in ufshcd_disable_auto_bkops()
5869 dev_err(hba->dev, "%s: failed to enable exception event %d\n", in ufshcd_disable_auto_bkops()
5877 dev_err(hba->dev, "%s: failed to disable bkops %d\n", in ufshcd_disable_auto_bkops()
5883 hba->auto_bkops_enabled = false; in ufshcd_disable_auto_bkops()
5885 hba->is_urgent_bkops_lvl_checked = false; in ufshcd_disable_auto_bkops()
5891 * ufshcd_force_reset_auto_bkops - force reset auto bkops state
5896 * as well. This function would change the auto-bkops state based on
5902 hba->auto_bkops_enabled = false; in ufshcd_force_reset_auto_bkops()
5903 hba->ee_ctrl_mask |= MASK_EE_URGENT_BKOPS; in ufshcd_force_reset_auto_bkops()
5906 hba->auto_bkops_enabled = true; in ufshcd_force_reset_auto_bkops()
5907 hba->ee_ctrl_mask &= ~MASK_EE_URGENT_BKOPS; in ufshcd_force_reset_auto_bkops()
5910 hba->urgent_bkops_lvl = BKOPS_STATUS_PERF_IMPACT; in ufshcd_force_reset_auto_bkops()
5911 hba->is_urgent_bkops_lvl_checked = false; in ufshcd_force_reset_auto_bkops()
5921 * ufshcd_bkops_ctrl - control the auto bkops based on current bkops status
5922 * @hba: per-adapter instance
5926 * bkops_status is greater than or equal to the "hba->urgent_bkops_lvl",
5929 * Return: 0 for success, non-zero in case of failure.
5931 * NOTE: Caller of this function can check the "hba->auto_bkops_enabled" flag
5937 enum bkops_status status = hba->urgent_bkops_lvl; in ufshcd_bkops_ctrl()
5943 dev_err(hba->dev, "%s: failed to get BKOPS status %d\n", in ufshcd_bkops_ctrl()
5947 dev_err(hba->dev, "%s: invalid BKOPS status %d\n", in ufshcd_bkops_ctrl()
5949 err = -EINVAL; in ufshcd_bkops_ctrl()
5972 if (hba->is_urgent_bkops_lvl_checked) in ufshcd_bkops_exception_event_handler()
5977 dev_err(hba->dev, "%s: failed to get BKOPS status %d\n", in ufshcd_bkops_exception_event_handler()
5989 dev_err(hba->dev, "%s: device raised urgent BKOPS exception for bkops status %d\n", in ufshcd_bkops_exception_event_handler()
5992 hba->urgent_bkops_lvl = curr_status; in ufshcd_bkops_exception_event_handler()
5993 hba->is_urgent_bkops_lvl_checked = true; in ufshcd_bkops_exception_event_handler()
6000 dev_err(hba->dev, "%s: failed to handle urgent bkops %d\n", in ufshcd_bkops_exception_event_handler()
6011 if (hba->dev_info.wspecversion < 0x410) in ufshcd_read_device_lvl_exception_id()
6012 return -EOPNOTSUPP; in ufshcd_read_device_lvl_exception_id()
6015 mutex_lock(&hba->dev_cmd.lock); in ufshcd_read_device_lvl_exception_id()
6021 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in ufshcd_read_device_lvl_exception_id()
6026 dev_err(hba->dev, "%s: failed to read device level exception %d\n", in ufshcd_read_device_lvl_exception_id()
6032 *exception_id = get_unaligned_be64(&upiu_resp->osf3); in ufshcd_read_device_lvl_exception_id()
6034 mutex_unlock(&hba->dev_cmd.lock); in ufshcd_read_device_lvl_exception_id()
6055 hba->dev_info.wb_enabled == enable) in ufshcd_wb_toggle()
6060 dev_err(hba->dev, "%s: Write Booster %s failed %d\n", in ufshcd_wb_toggle()
6065 hba->dev_info.wb_enabled = enable; in ufshcd_wb_toggle()
6066 dev_dbg(hba->dev, "%s: Write Booster %s\n", in ufshcd_wb_toggle()
6080 dev_err(hba->dev, "%s: WB-Buf Flush during H8 %s failed %d\n", in ufshcd_wb_toggle_buf_flush_during_h8()
6084 dev_dbg(hba->dev, "%s: WB-Buf Flush during H8 %s\n", in ufshcd_wb_toggle_buf_flush_during_h8()
6093 hba->dev_info.wb_buf_flush_enabled == enable) in ufshcd_wb_toggle_buf_flush()
6098 dev_err(hba->dev, "%s: WB-Buf Flush %s failed %d\n", in ufshcd_wb_toggle_buf_flush()
6103 hba->dev_info.wb_buf_flush_enabled = enable; in ufshcd_wb_toggle_buf_flush()
6104 dev_dbg(hba->dev, "%s: WB-Buf Flush %s\n", in ufshcd_wb_toggle_buf_flush()
6122 dev_err(hba->dev, "%s: dCurWriteBoosterBufferSize read failed %d\n", in ufshcd_wb_curr_buff_threshold_check()
6128 dev_info(hba->dev, "dCurWBBuf: %d WB disabled until free-space is available\n", in ufshcd_wb_curr_buff_threshold_check()
6133 return avail_buf < hba->vps->wb_flush_threshold; in ufshcd_wb_curr_buff_threshold_check()
6143 hba->caps &= ~UFSHCD_CAP_WB_EN; in ufshcd_wb_force_disable()
6145 dev_info(hba->dev, "%s: WB force disabled\n", __func__); in ufshcd_wb_force_disable()
6159 dev_err(hba->dev, in ufshcd_is_wb_buf_lifetime_available()
6166 dev_err(hba->dev, "%s: WB buf lifetime is exhausted 0x%02X\n", in ufshcd_is_wb_buf_lifetime_available()
6171 dev_dbg(hba->dev, "%s: WB buf lifetime is 0x%02X\n", in ufshcd_is_wb_buf_lifetime_available()
6192 * With user-space reduction enabled, it's enough to enable flush in ufshcd_wb_need_flush()
6195 * With user-space preserved enabled, the current-buffer in ufshcd_wb_need_flush()
6205 dev_warn(hba->dev, "%s: dAvailableWriteBoosterBufferSize read failed %d\n", in ufshcd_wb_need_flush()
6210 if (!hba->dev_info.b_presrv_uspc_en) in ufshcd_wb_need_flush()
6232 * ufshcd_exception_event_handler - handle exceptions raised by device
6247 dev_err(hba->dev, "%s: failed to get exception status %d\n", in ufshcd_exception_event_handler()
6254 if (status & hba->ee_drv_mask & MASK_EE_URGENT_BKOPS) in ufshcd_exception_event_handler()
6257 if (status & hba->ee_drv_mask & MASK_EE_URGENT_TEMP) in ufshcd_exception_event_handler()
6260 if (status & hba->ee_drv_mask & MASK_EE_HEALTH_CRITICAL) { in ufshcd_exception_event_handler()
6261 hba->critical_health_count++; in ufshcd_exception_event_handler()
6262 sysfs_notify(&hba->dev->kobj, NULL, "critical_health"); in ufshcd_exception_event_handler()
6265 if (status & hba->ee_drv_mask & MASK_EE_DEV_LVL_EXCEPTION) { in ufshcd_exception_event_handler()
6266 atomic_inc(&hba->dev_lvl_exception_count); in ufshcd_exception_event_handler()
6267 sysfs_notify(&hba->dev->kobj, NULL, "device_lvl_exception_count"); in ufshcd_exception_event_handler()
6273 /* Complete requests that have door-bell cleared */
6276 if (hba->mcq_enabled) in ufshcd_complete_requests()
6285 * ufshcd_quirk_dl_nac_errors - This function checks if error handling is
6287 * @hba: per-adapter instance
6296 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6301 if (hba->saved_err & (CONTROLLER_FATAL_ERROR | SYSTEM_BUS_FATAL_ERROR)) in ufshcd_quirk_dl_nac_errors()
6304 if ((hba->saved_err & DEVICE_FATAL_ERROR) || in ufshcd_quirk_dl_nac_errors()
6305 ((hba->saved_err & UIC_ERROR) && in ufshcd_quirk_dl_nac_errors()
6306 (hba->saved_uic_err & UFSHCD_UIC_DL_TCx_REPLAY_ERROR))) in ufshcd_quirk_dl_nac_errors()
6309 if ((hba->saved_err & UIC_ERROR) && in ufshcd_quirk_dl_nac_errors()
6310 (hba->saved_uic_err & UFSHCD_UIC_DL_NAC_RECEIVED_ERROR)) { in ufshcd_quirk_dl_nac_errors()
6315 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6317 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6323 if ((hba->saved_err & INT_FATAL_ERRORS) || in ufshcd_quirk_dl_nac_errors()
6324 ((hba->saved_err & UIC_ERROR) && in ufshcd_quirk_dl_nac_errors()
6325 (hba->saved_uic_err & ~UFSHCD_UIC_DL_NAC_RECEIVED_ERROR))) in ufshcd_quirk_dl_nac_errors()
6331 * - If we don't get any response then do error recovery. in ufshcd_quirk_dl_nac_errors()
6332 * - If we get response then clear the DL NAC error bit. in ufshcd_quirk_dl_nac_errors()
6335 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6337 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6343 if (hba->saved_uic_err == UFSHCD_UIC_DL_NAC_RECEIVED_ERROR) in ufshcd_quirk_dl_nac_errors()
6344 hba->saved_err &= ~UIC_ERROR; in ufshcd_quirk_dl_nac_errors()
6346 hba->saved_uic_err &= ~UFSHCD_UIC_DL_NAC_RECEIVED_ERROR; in ufshcd_quirk_dl_nac_errors()
6347 if (!hba->saved_uic_err) in ufshcd_quirk_dl_nac_errors()
6351 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6358 return (hba->saved_uic_err & UFSHCD_UIC_DL_PA_INIT_ERROR) || in ufshcd_is_saved_err_fatal()
6359 (hba->saved_err & (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK)); in ufshcd_is_saved_err_fatal()
6364 lockdep_assert_held(hba->host->host_lock); in ufshcd_schedule_eh_work()
6367 if (hba->ufshcd_state != UFSHCD_STATE_ERROR) { in ufshcd_schedule_eh_work()
6368 if (hba->force_reset || ufshcd_is_link_broken(hba) || in ufshcd_schedule_eh_work()
6370 hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_FATAL; in ufshcd_schedule_eh_work()
6372 hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_NON_FATAL; in ufshcd_schedule_eh_work()
6373 queue_work(hba->eh_wq, &hba->eh_work); in ufshcd_schedule_eh_work()
6379 spin_lock_irq(hba->host->host_lock); in ufshcd_force_error_recovery()
6380 hba->force_reset = true; in ufshcd_force_error_recovery()
6382 spin_unlock_irq(hba->host->host_lock); in ufshcd_force_error_recovery()
6387 mutex_lock(&hba->wb_mutex); in ufshcd_clk_scaling_allow()
6388 down_write(&hba->clk_scaling_lock); in ufshcd_clk_scaling_allow()
6389 hba->clk_scaling.is_allowed = allow; in ufshcd_clk_scaling_allow()
6390 up_write(&hba->clk_scaling_lock); in ufshcd_clk_scaling_allow()
6391 mutex_unlock(&hba->wb_mutex); in ufshcd_clk_scaling_allow()
6397 if (hba->clk_scaling.is_enabled) in ufshcd_clk_scaling_suspend()
6402 if (hba->clk_scaling.is_enabled) in ufshcd_clk_scaling_suspend()
6410 if (pm_runtime_status_suspended(&hba->ufs_device_wlun->sdev_gendev) || in ufshcd_err_handling_prepare()
6411 hba->is_sys_suspended) { in ufshcd_err_handling_prepare()
6422 ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq); in ufshcd_err_handling_prepare()
6423 ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq2); in ufshcd_err_handling_prepare()
6427 pm_op = hba->is_sys_suspended ? UFS_SYSTEM_PM : UFS_RUNTIME_PM; in ufshcd_err_handling_prepare()
6432 hba->clk_scaling.is_enabled) in ufshcd_err_handling_prepare()
6437 blk_mq_quiesce_tagset(&hba->host->tag_set); in ufshcd_err_handling_prepare()
6438 cancel_work_sync(&hba->eeh_work); in ufshcd_err_handling_prepare()
6443 blk_mq_unquiesce_tagset(&hba->host->tag_set); in ufshcd_err_handling_unprepare()
6452 return (!hba->is_powered || hba->shutting_down || in ufshcd_err_handling_should_stop()
6453 !hba->ufs_device_wlun || in ufshcd_err_handling_should_stop()
6454 hba->ufshcd_state == UFSHCD_STATE_ERROR || in ufshcd_err_handling_should_stop()
6455 (!(hba->saved_err || hba->saved_uic_err || hba->force_reset || in ufshcd_err_handling_should_stop()
6462 struct Scsi_Host *shost = hba->host; in ufshcd_recover_pm_error()
6467 hba->is_sys_suspended = false; in ufshcd_recover_pm_error()
6472 ret = pm_runtime_set_active(&hba->ufs_device_wlun->sdev_gendev); in ufshcd_recover_pm_error()
6476 ret = pm_runtime_set_active(hba->dev); in ufshcd_recover_pm_error()
6485 q = sdev->request_queue; in ufshcd_recover_pm_error()
6486 if (q->dev && (q->rpm_status == RPM_SUSPENDED || in ufshcd_recover_pm_error()
6487 q->rpm_status == RPM_SUSPENDING)) in ufshcd_recover_pm_error()
6488 pm_request_resume(q->dev); in ufshcd_recover_pm_error()
6500 struct ufs_pa_layer_attr *pwr_info = &hba->pwr_info; in ufshcd_is_pwr_mode_restore_needed()
6505 if (pwr_info->pwr_rx != ((mode >> PWRMODE_RX_OFFSET) & PWRMODE_MASK)) in ufshcd_is_pwr_mode_restore_needed()
6508 if (pwr_info->pwr_tx != (mode & PWRMODE_MASK)) in ufshcd_is_pwr_mode_restore_needed()
6517 u32 tag = rq->tag; in ufshcd_abort_one()
6519 struct scsi_device *sdev = cmd->device; in ufshcd_abort_one()
6520 struct Scsi_Host *shost = sdev->host; in ufshcd_abort_one()
6524 dev_err(hba->dev, "Aborting tag %d / CDB %#02x %s\n", tag, in ufshcd_abort_one()
6525 hba->lrb[tag].cmd ? hba->lrb[tag].cmd->cmnd[0] : -1, in ufshcd_abort_one()
6532 * ufshcd_abort_all - Abort all pending commands.
6541 blk_mq_tagset_busy_iter(&hba->host->tag_set, ufshcd_abort_one, &ret); in ufshcd_abort_all()
6546 for_each_set_bit(tag, &hba->outstanding_tasks, hba->nutmrs) { in ufshcd_abort_all()
6560 * ufshcd_err_handler - handle UFS errors that require s/w attention
6574 dev_info(hba->dev, in ufshcd_err_handler()
6576 __func__, ufshcd_state_name[hba->ufshcd_state], in ufshcd_err_handler()
6577 hba->is_powered, hba->shutting_down, hba->saved_err, in ufshcd_err_handler()
6578 hba->saved_uic_err, hba->force_reset, in ufshcd_err_handler()
6581 down(&hba->host_sem); in ufshcd_err_handler()
6582 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6584 if (hba->ufshcd_state != UFSHCD_STATE_ERROR) in ufshcd_err_handler()
6585 hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; in ufshcd_err_handler()
6586 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6587 up(&hba->host_sem); in ufshcd_err_handler()
6591 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6593 /* Complete requests that have door-bell cleared by h/w */ in ufshcd_err_handler()
6595 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6600 if (hba->ufshcd_state != UFSHCD_STATE_ERROR) in ufshcd_err_handler()
6601 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_err_handler()
6609 if ((hba->dev_quirks & UFS_DEVICE_QUIRK_RECOVERY_FROM_DL_NAC_ERRORS) && in ufshcd_err_handler()
6610 !hba->force_reset) { in ufshcd_err_handler()
6613 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6616 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6621 if ((hba->saved_err & (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK)) || in ufshcd_err_handler()
6622 (hba->saved_uic_err && in ufshcd_err_handler()
6623 (hba->saved_uic_err != UFSHCD_UIC_PA_GENERIC_ERROR))) { in ufshcd_err_handler()
6624 bool pr_prdt = !!(hba->saved_err & SYSTEM_BUS_FATAL_ERROR); in ufshcd_err_handler()
6626 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6630 ufshcd_print_tmrs(hba, hba->outstanding_tasks); in ufshcd_err_handler()
6632 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6640 if (hba->force_reset || ufshcd_is_link_broken(hba) || in ufshcd_err_handler()
6642 ((hba->saved_err & UIC_ERROR) && in ufshcd_err_handler()
6643 (hba->saved_uic_err & (UFSHCD_UIC_DL_NAC_RECEIVED_ERROR | in ufshcd_err_handler()
6653 if (hba->saved_uic_err & UFSHCD_UIC_PA_GENERIC_ERROR) { in ufshcd_err_handler()
6654 hba->saved_uic_err &= ~UFSHCD_UIC_PA_GENERIC_ERROR; in ufshcd_err_handler()
6655 if (!hba->saved_uic_err) in ufshcd_err_handler()
6656 hba->saved_err &= ~UIC_ERROR; in ufshcd_err_handler()
6657 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6660 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6661 if (!hba->saved_err && !needs_restore) in ufshcd_err_handler()
6665 hba->silence_err_logs = true; in ufshcd_err_handler()
6667 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6671 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6672 hba->silence_err_logs = false; in ufshcd_err_handler()
6681 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6686 down_write(&hba->clk_scaling_lock); in ufshcd_err_handler()
6687 hba->force_pmc = true; in ufshcd_err_handler()
6688 pmc_err = ufshcd_config_pwr_mode(hba, &(hba->pwr_info)); in ufshcd_err_handler()
6691 dev_err(hba->dev, "%s: Failed to restore power mode, err = %d\n", in ufshcd_err_handler()
6694 hba->force_pmc = false; in ufshcd_err_handler()
6696 up_write(&hba->clk_scaling_lock); in ufshcd_err_handler()
6697 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6705 hba->force_reset = false; in ufshcd_err_handler()
6706 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6709 dev_err(hba->dev, "%s: reset and restore failed with err %d\n", in ufshcd_err_handler()
6713 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6718 if (hba->ufshcd_state == UFSHCD_STATE_RESET) in ufshcd_err_handler()
6719 hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; in ufshcd_err_handler()
6720 if (hba->saved_err || hba->saved_uic_err) in ufshcd_err_handler()
6721 dev_err_ratelimited(hba->dev, "%s: exit: saved_err 0x%x saved_uic_err 0x%x", in ufshcd_err_handler()
6722 __func__, hba->saved_err, hba->saved_uic_err); in ufshcd_err_handler()
6725 if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL && in ufshcd_err_handler()
6726 hba->ufshcd_state != UFSHCD_STATE_ERROR) { in ufshcd_err_handler()
6727 if (--retries) in ufshcd_err_handler()
6729 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_err_handler()
6732 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6734 up(&hba->host_sem); in ufshcd_err_handler()
6736 dev_info(hba->dev, "%s finished; HBA state %s\n", __func__, in ufshcd_err_handler()
6737 ufshcd_state_name[hba->ufshcd_state]); in ufshcd_err_handler()
6741 * ufshcd_update_uic_error - check and set fatal UIC error flags.
6742 * @hba: per-adapter instance
6745 * IRQ_HANDLED - If interrupt is valid
6746 * IRQ_NONE - If invalid interrupt
6763 dev_dbg(hba->dev, "%s: UIC Lane error reported\n", in ufshcd_update_uic_error()
6770 hba->uic_error |= UFSHCD_UIC_PA_GENERIC_ERROR; in ufshcd_update_uic_error()
6771 if (hba->uic_async_done && hba->active_uic_cmd) in ufshcd_update_uic_error()
6772 cmd = hba->active_uic_cmd; in ufshcd_update_uic_error()
6777 if (cmd && (cmd->command == UIC_CMD_DME_SET)) in ufshcd_update_uic_error()
6778 hba->uic_error &= ~UFSHCD_UIC_PA_GENERIC_ERROR; in ufshcd_update_uic_error()
6790 hba->uic_error |= UFSHCD_UIC_DL_PA_INIT_ERROR; in ufshcd_update_uic_error()
6791 else if (hba->dev_quirks & in ufshcd_update_uic_error()
6794 hba->uic_error |= in ufshcd_update_uic_error()
6797 hba->uic_error |= UFSHCD_UIC_DL_TCx_REPLAY_ERROR; in ufshcd_update_uic_error()
6807 hba->uic_error |= UFSHCD_UIC_NL_ERROR; in ufshcd_update_uic_error()
6815 hba->uic_error |= UFSHCD_UIC_TL_ERROR; in ufshcd_update_uic_error()
6823 hba->uic_error |= UFSHCD_UIC_DME_ERROR; in ufshcd_update_uic_error()
6827 dev_dbg(hba->dev, "%s: UIC error flags = 0x%08x\n", in ufshcd_update_uic_error()
6828 __func__, hba->uic_error); in ufshcd_update_uic_error()
6833 * ufshcd_check_errors - Check for errors that need s/w attention
6834 * @hba: per-adapter instance
6838 * IRQ_HANDLED - If interrupt is valid
6839 * IRQ_NONE - If invalid interrupt
6846 spin_lock(hba->host->host_lock); in ufshcd_check_errors()
6847 hba->errors |= UFSHCD_ERROR_MASK & intr_status; in ufshcd_check_errors()
6849 if (hba->errors & INT_FATAL_ERRORS) { in ufshcd_check_errors()
6851 hba->errors); in ufshcd_check_errors()
6855 if (hba->errors & UIC_ERROR) { in ufshcd_check_errors()
6856 hba->uic_error = 0; in ufshcd_check_errors()
6858 if (hba->uic_error) in ufshcd_check_errors()
6862 if (hba->errors & UFSHCD_UIC_HIBERN8_MASK) { in ufshcd_check_errors()
6863 dev_err(hba->dev, in ufshcd_check_errors()
6864 "%s: Auto Hibern8 %s failed - status: 0x%08x, upmcrs: 0x%08x\n", in ufshcd_check_errors()
6865 __func__, (hba->errors & UIC_HIBERNATE_ENTER) ? in ufshcd_check_errors()
6867 hba->errors, ufshcd_get_upmcrs(hba)); in ufshcd_check_errors()
6869 hba->errors); in ufshcd_check_errors()
6879 hba->saved_err |= hba->errors; in ufshcd_check_errors()
6880 hba->saved_uic_err |= hba->uic_error; in ufshcd_check_errors()
6883 if ((hba->saved_err & in ufshcd_check_errors()
6885 (hba->saved_uic_err && in ufshcd_check_errors()
6886 (hba->saved_uic_err != UFSHCD_UIC_PA_GENERIC_ERROR))) { in ufshcd_check_errors()
6887 dev_err(hba->dev, "%s: saved_err 0x%x saved_uic_err 0x%x\n", in ufshcd_check_errors()
6888 __func__, hba->saved_err, in ufshcd_check_errors()
6889 hba->saved_uic_err); in ufshcd_check_errors()
6898 * if (!queue_eh_work) - in ufshcd_check_errors()
6899 * Other errors are either non-fatal where host recovers in ufshcd_check_errors()
6903 hba->errors = 0; in ufshcd_check_errors()
6904 hba->uic_error = 0; in ufshcd_check_errors()
6905 spin_unlock(hba->host->host_lock); in ufshcd_check_errors()
6910 * ufshcd_tmc_handler - handle task management function completion
6914 * IRQ_HANDLED - If interrupt is valid
6915 * IRQ_NONE - If invalid interrupt
6923 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_tmc_handler()
6925 issued = hba->outstanding_tasks & ~pending; in ufshcd_tmc_handler()
6926 for_each_set_bit(tag, &issued, hba->nutmrs) { in ufshcd_tmc_handler()
6927 struct request *req = hba->tmf_rqs[tag]; in ufshcd_tmc_handler()
6928 struct completion *c = req->end_io_data; in ufshcd_tmc_handler()
6933 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_tmc_handler()
6939 * ufshcd_handle_mcq_cq_events - handle MCQ completion queue events
6954 outstanding_cqs = (1U << hba->nr_hw_queues) - 1; in ufshcd_handle_mcq_cq_events()
6957 nr_queues = hba->nr_hw_queues - hba->nr_queues[HCTX_TYPE_POLL]; in ufshcd_handle_mcq_cq_events()
6959 hwq = &hba->uhq[i]; in ufshcd_handle_mcq_cq_events()
6973 * ufshcd_sl_intr - Interrupt service routine
6978 * IRQ_HANDLED - If interrupt is valid
6979 * IRQ_NONE - If invalid interrupt
6988 if (intr_status & UFSHCD_ERROR_MASK || hba->errors) in ufshcd_sl_intr()
7004 * ufshcd_intr - Main interrupt service routine
7009 * IRQ_HANDLED - If interrupt is valid
7010 * IRQ_NONE - If invalid interrupt
7017 int retries = hba->nutrs; in ufshcd_intr()
7020 hba->ufs_stats.last_intr_status = intr_status; in ufshcd_intr()
7021 hba->ufs_stats.last_intr_ts = local_clock(); in ufshcd_intr()
7024 * There could be max of hba->nutrs reqs in flight and in worst case in ufshcd_intr()
7029 while (intr_status && retries--) { in ufshcd_intr()
7041 hba->outstanding_reqs) && !ufshcd_eh_in_progress(hba)) { in ufshcd_intr()
7042 dev_err(hba->dev, "%s: Unhandled interrupt 0x%08x (0x%08x, 0x%08x)\n", in ufshcd_intr()
7045 hba->ufs_stats.last_intr_status, in ufshcd_intr()
7058 if (!test_bit(tag, &hba->outstanding_tasks)) in ufshcd_clear_tm_cmd()
7068 dev_err(hba->dev, "Clearing task management function with tag %d %s\n", in ufshcd_clear_tm_cmd()
7078 struct request_queue *q = hba->tmf_queue; in __ufshcd_issue_tm_cmd()
7079 struct Scsi_Host *host = hba->host; in __ufshcd_issue_tm_cmd()
7092 req->end_io_data = &wait; in __ufshcd_issue_tm_cmd()
7095 spin_lock_irqsave(host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7097 task_tag = req->tag; in __ufshcd_issue_tm_cmd()
7098 hba->tmf_rqs[req->tag] = req; in __ufshcd_issue_tm_cmd()
7099 treq->upiu_req.req_header.task_tag = task_tag; in __ufshcd_issue_tm_cmd()
7101 memcpy(hba->utmrdl_base_addr + task_tag, treq, sizeof(*treq)); in __ufshcd_issue_tm_cmd()
7104 __set_bit(task_tag, &hba->outstanding_tasks); in __ufshcd_issue_tm_cmd()
7106 spin_unlock_irqrestore(host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7118 dev_err(hba->dev, "%s: task management cmd 0x%.2x timed-out\n", in __ufshcd_issue_tm_cmd()
7121 dev_WARN(hba->dev, "%s: unable to clear tm cmd (slot %d) after timeout\n", in __ufshcd_issue_tm_cmd()
7123 err = -ETIMEDOUT; in __ufshcd_issue_tm_cmd()
7126 memcpy(treq, hba->utmrdl_base_addr + task_tag, sizeof(*treq)); in __ufshcd_issue_tm_cmd()
7131 spin_lock_irqsave(hba->host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7132 hba->tmf_rqs[req->tag] = NULL; in __ufshcd_issue_tm_cmd()
7133 __clear_bit(task_tag, &hba->outstanding_tasks); in __ufshcd_issue_tm_cmd()
7134 spin_unlock_irqrestore(hba->host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7143 * ufshcd_issue_tm_cmd - issues task management commands to controller
7150 * Return: non-zero value on error, zero on success.
7176 if (err == -ETIMEDOUT) in ufshcd_issue_tm_cmd()
7181 dev_err(hba->dev, "%s: failed, ocs = 0x%x\n", in ufshcd_issue_tm_cmd()
7190 * ufshcd_issue_devman_upiu_cmd - API for sending "utrd" type requests
7191 * @hba: per-adapter instance
7199 * Those type of requests uses UTP Transfer Request Descriptor - utrd.
7204 * the caller is expected to hold the hba->dev_cmd.lock mutex.
7215 const u32 tag = hba->reserved_slot; in ufshcd_issue_devman_upiu_cmd()
7216 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_issue_devman_upiu_cmd()
7220 /* Protects use of hba->reserved_slot. */ in ufshcd_issue_devman_upiu_cmd()
7221 lockdep_assert_held(&hba->dev_cmd.lock); in ufshcd_issue_devman_upiu_cmd()
7228 req_upiu->header.task_tag = tag; in ufshcd_issue_devman_upiu_cmd()
7231 memcpy(lrbp->ucd_req_ptr, req_upiu, sizeof(*lrbp->ucd_req_ptr)); in ufshcd_issue_devman_upiu_cmd()
7237 memcpy(lrbp->ucd_req_ptr + 1, desc_buff, *buff_len); in ufshcd_issue_devman_upiu_cmd()
7241 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_issue_devman_upiu_cmd()
7244 * ignore the returning value here - ufshcd_check_query_response is in ufshcd_issue_devman_upiu_cmd()
7251 memcpy(rsp_upiu, lrbp->ucd_rsp_ptr, sizeof(*rsp_upiu)); in ufshcd_issue_devman_upiu_cmd()
7253 u8 *descp = (u8 *)lrbp->ucd_rsp_ptr + sizeof(*rsp_upiu); in ufshcd_issue_devman_upiu_cmd()
7254 u16 resp_len = be16_to_cpu(lrbp->ucd_rsp_ptr->header in ufshcd_issue_devman_upiu_cmd()
7261 dev_warn(hba->dev, in ufshcd_issue_devman_upiu_cmd()
7265 err = -EINVAL; in ufshcd_issue_devman_upiu_cmd()
7273 * ufshcd_exec_raw_upiu_cmd - API function for sending raw upiu commands
7274 * @hba: per-adapter instance
7276 * @rsp_upiu: upiu reply - only 8 DW as we do not support scsi commands
7300 u8 tm_f = req_upiu->header.tm_function; in ufshcd_exec_raw_upiu_cmd()
7321 if (err == -ETIMEDOUT) in ufshcd_exec_raw_upiu_cmd()
7326 dev_err(hba->dev, "%s: failed, ocs = 0x%x\n", __func__, in ufshcd_exec_raw_upiu_cmd()
7335 err = -EINVAL; in ufshcd_exec_raw_upiu_cmd()
7344 * ufshcd_advanced_rpmb_req_handler - handle advanced RPMB request
7354 * Return: zero on success, non-zero on failure.
7361 const u32 tag = hba->reserved_slot; in ufshcd_advanced_rpmb_req_handler()
7362 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_advanced_rpmb_req_handler()
7368 int ehs = (hba->capabilities & MASK_EHSLUTRD_SUPPORTED) ? 2 : 0; in ufshcd_advanced_rpmb_req_handler()
7370 /* Protects use of hba->reserved_slot. */ in ufshcd_advanced_rpmb_req_handler()
7378 req_upiu->header.task_tag = tag; in ufshcd_advanced_rpmb_req_handler()
7381 memcpy(lrbp->ucd_req_ptr, req_upiu, sizeof(*lrbp->ucd_req_ptr)); in ufshcd_advanced_rpmb_req_handler()
7383 memcpy(lrbp->ucd_req_ptr + 1, req_ehs, sizeof(*req_ehs)); in ufshcd_advanced_rpmb_req_handler()
7388 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_advanced_rpmb_req_handler()
7394 memcpy(rsp_upiu, lrbp->ucd_rsp_ptr, sizeof(*rsp_upiu)); in ufshcd_advanced_rpmb_req_handler()
7396 result = (lrbp->ucd_rsp_ptr->header.response << 8) | in ufshcd_advanced_rpmb_req_handler()
7397 lrbp->ucd_rsp_ptr->header.status; in ufshcd_advanced_rpmb_req_handler()
7399 ehs_len = lrbp->ucd_rsp_ptr->header.ehs_length; in ufshcd_advanced_rpmb_req_handler()
7410 ehs_data = (u8 *)lrbp->ucd_rsp_ptr + EHS_OFFSET_IN_RESPONSE; in ufshcd_advanced_rpmb_req_handler()
7421 * ufshcd_eh_device_reset_handler() - Reset a single logical unit.
7437 host = cmd->device->host; in ufshcd_eh_device_reset_handler()
7440 lun = ufshcd_scsi_to_upiu_lun(cmd->device->lun); in ufshcd_eh_device_reset_handler()
7448 if (hba->mcq_enabled) { in ufshcd_eh_device_reset_handler()
7449 for (pos = 0; pos < hba->nutrs; pos++) { in ufshcd_eh_device_reset_handler()
7450 lrbp = &hba->lrb[pos]; in ufshcd_eh_device_reset_handler()
7451 if (ufshcd_cmd_inflight(lrbp->cmd) && in ufshcd_eh_device_reset_handler()
7452 lrbp->lun == lun) { in ufshcd_eh_device_reset_handler()
7454 hwq = ufshcd_mcq_req_to_hwq(hba, scsi_cmd_to_rq(lrbp->cmd)); in ufshcd_eh_device_reset_handler()
7463 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7464 for_each_set_bit(pos, &hba->outstanding_reqs, hba->nutrs) in ufshcd_eh_device_reset_handler()
7465 if (hba->lrb[pos].lun == lun) in ufshcd_eh_device_reset_handler()
7467 hba->outstanding_reqs &= ~pending_reqs; in ufshcd_eh_device_reset_handler()
7468 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7470 for_each_set_bit(pos, &pending_reqs, hba->nutrs) { in ufshcd_eh_device_reset_handler()
7472 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7475 hba->outstanding_reqs |= not_cleared; in ufshcd_eh_device_reset_handler()
7477 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7479 dev_err(hba->dev, "%s: failed to clear request %d\n", in ufshcd_eh_device_reset_handler()
7486 hba->req_abort_count = 0; in ufshcd_eh_device_reset_handler()
7491 dev_err(hba->dev, "%s: failed with err %d\n", __func__, err); in ufshcd_eh_device_reset_handler()
7502 for_each_set_bit(tag, &bitmap, hba->nutrs) { in ufshcd_set_req_abort_skip()
7503 lrbp = &hba->lrb[tag]; in ufshcd_set_req_abort_skip()
7504 lrbp->req_abort_skip = true; in ufshcd_set_req_abort_skip()
7509 * ufshcd_try_to_abort_task - abort a specific task
7514 * command, and in host controller by clearing the door-bell register. There can
7519 * Return: zero on success, non-zero on failure.
7523 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_try_to_abort_task()
7528 for (poll_cnt = 100; poll_cnt; poll_cnt--) { in ufshcd_try_to_abort_task()
7529 err = ufshcd_issue_tm_cmd(hba, lrbp->lun, lrbp->task_tag, in ufshcd_try_to_abort_task()
7533 dev_err(hba->dev, "%s: cmd pending in the device. tag = %d\n", in ufshcd_try_to_abort_task()
7542 hba->dev, in ufshcd_try_to_abort_task()
7545 if (!ufshcd_cmd_inflight(lrbp->cmd)) { in ufshcd_try_to_abort_task()
7546 dev_info(hba->dev, in ufshcd_try_to_abort_task()
7553 dev_err(hba->dev, in ufshcd_try_to_abort_task()
7561 return -EBUSY; in ufshcd_try_to_abort_task()
7563 err = ufshcd_issue_tm_cmd(hba, lrbp->lun, lrbp->task_tag, in ufshcd_try_to_abort_task()
7568 dev_err(hba->dev, "%s: issued. tag = %d, err %d\n", in ufshcd_try_to_abort_task()
7576 dev_err(hba->dev, "%s: Failed clearing cmd at tag %d, err %d\n", in ufshcd_try_to_abort_task()
7583 * ufshcd_abort - scsi host template eh_abort_handler callback
7590 struct Scsi_Host *host = cmd->device->host; in ufshcd_abort()
7592 int tag = scsi_cmd_to_rq(cmd)->tag; in ufshcd_abort()
7593 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_abort()
7601 if (!hba->mcq_enabled) { in ufshcd_abort()
7603 if (!test_bit(tag, &hba->outstanding_reqs)) { in ufshcd_abort()
7605 dev_err(hba->dev, in ufshcd_abort()
7607 __func__, tag, hba->outstanding_reqs, reg); in ufshcd_abort()
7613 dev_info(hba->dev, "%s: Device abort task at tag %d\n", __func__, tag); in ufshcd_abort()
7623 if (!hba->req_abort_count) { in ufshcd_abort()
7632 hba->req_abort_count++; in ufshcd_abort()
7634 if (!hba->mcq_enabled && !(reg & (1 << tag))) { in ufshcd_abort()
7636 dev_err(hba->dev, in ufshcd_abort()
7644 * Task abort to the device W-LUN is illegal. When this command in ufshcd_abort()
7648 * the lrb taken by this cmd and re-set it in outstanding_reqs, in ufshcd_abort()
7651 if (lrbp->lun == UFS_UPIU_UFS_DEVICE_WLUN) { in ufshcd_abort()
7652 ufshcd_update_evt_hist(hba, UFS_EVT_ABORT, lrbp->lun); in ufshcd_abort()
7654 spin_lock_irqsave(host->host_lock, flags); in ufshcd_abort()
7655 hba->force_reset = true; in ufshcd_abort()
7657 spin_unlock_irqrestore(host->host_lock, flags); in ufshcd_abort()
7661 if (hba->mcq_enabled) { in ufshcd_abort()
7668 if (lrbp->req_abort_skip) { in ufshcd_abort()
7669 dev_err(hba->dev, "%s: skipping abort\n", __func__); in ufshcd_abort()
7670 ufshcd_set_req_abort_skip(hba, hba->outstanding_reqs); in ufshcd_abort()
7676 dev_err(hba->dev, "%s: failed with err %d\n", __func__, err); in ufshcd_abort()
7677 ufshcd_set_req_abort_skip(hba, hba->outstanding_reqs); in ufshcd_abort()
7686 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_abort()
7687 outstanding = __test_and_clear_bit(tag, &hba->outstanding_reqs); in ufshcd_abort()
7688 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_abort()
7702 * ufshcd_process_probe_result - Process the ufshcd_probe_hba() result.
7712 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_process_probe_result()
7714 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_process_probe_result()
7715 else if (hba->ufshcd_state == UFSHCD_STATE_RESET) in ufshcd_process_probe_result()
7716 hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; in ufshcd_process_probe_result()
7717 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_process_probe_result()
7721 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_process_probe_result()
7725 * ufshcd_host_reset_and_restore - reset and restore host controller
7726 * @hba: per-adapter instance
7729 * local and remote (device) Uni-Pro stack and the attributes
7732 * Return: zero on success, non-zero on failure.
7743 hba->silence_err_logs = true; in ufshcd_host_reset_and_restore()
7745 hba->silence_err_logs = false; in ufshcd_host_reset_and_restore()
7763 dev_err(hba->dev, "%s: Host init failed %d\n", __func__, err); in ufshcd_host_reset_and_restore()
7769 * ufshcd_reset_and_restore - reset and re-initialize host/device
7770 * @hba: per-adapter instance
7772 * Reset and recover device, host and re-establish link. This
7775 * Return: zero on success, non-zero on failure.
7785 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7791 saved_err |= hba->saved_err; in ufshcd_reset_and_restore()
7792 saved_uic_err |= hba->saved_uic_err; in ufshcd_reset_and_restore()
7793 hba->saved_err = 0; in ufshcd_reset_and_restore()
7794 hba->saved_uic_err = 0; in ufshcd_reset_and_restore()
7795 hba->force_reset = false; in ufshcd_reset_and_restore()
7796 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_reset_and_restore()
7797 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7804 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7808 if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL && in ufshcd_reset_and_restore()
7809 hba->ufshcd_state != UFSHCD_STATE_ERROR && in ufshcd_reset_and_restore()
7810 hba->ufshcd_state != UFSHCD_STATE_EH_SCHEDULED_NON_FATAL) in ufshcd_reset_and_restore()
7811 err = -EAGAIN; in ufshcd_reset_and_restore()
7812 } while (err && --retries); in ufshcd_reset_and_restore()
7815 * Inform scsi mid-layer that we did reset and allow to handle in ufshcd_reset_and_restore()
7818 scsi_report_bus_reset(hba->host, 0); in ufshcd_reset_and_restore()
7820 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_reset_and_restore()
7821 hba->saved_err |= saved_err; in ufshcd_reset_and_restore()
7822 hba->saved_uic_err |= saved_uic_err; in ufshcd_reset_and_restore()
7824 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7830 * ufshcd_eh_host_reset_handler - host reset handler registered to scsi layer
7841 hba = shost_priv(cmd->device->host); in ufshcd_eh_host_reset_handler()
7845 * stuck in this function waiting for flush_work(&hba->eh_work). And in ufshcd_eh_host_reset_handler()
7849 if (hba->pm_op_in_progress) { in ufshcd_eh_host_reset_handler()
7856 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7857 hba->force_reset = true; in ufshcd_eh_host_reset_handler()
7859 dev_err(hba->dev, "%s: reset in progress - 1\n", __func__); in ufshcd_eh_host_reset_handler()
7860 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7862 flush_work(&hba->eh_work); in ufshcd_eh_host_reset_handler()
7864 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7865 if (hba->ufshcd_state == UFSHCD_STATE_ERROR) in ufshcd_eh_host_reset_handler()
7867 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7873 * ufshcd_get_max_icc_level - calculate the ICC level
7874 * @sup_curr_uA: max. current supported by the regulator
7878 * Return: calculated max ICC level for specific regulator.
7888 for (i = start_scan; i >= 0; i--) { in ufshcd_get_max_icc_level()
7919 * ufshcd_find_max_sup_active_icc_level - calculate the max ICC level
7921 * @hba: per-adapter instance
7931 if (!hba->vreg_info.vcc || !hba->vreg_info.vccq || in ufshcd_find_max_sup_active_icc_level()
7932 !hba->vreg_info.vccq2) { in ufshcd_find_max_sup_active_icc_level()
7935 * never-ending cycles of messages written back to storage by in ufshcd_find_max_sup_active_icc_level()
7939 dev_dbg(hba->dev, in ufshcd_find_max_sup_active_icc_level()
7940 "%s: Regulator capability was not set, actvIccLevel=%d", in ufshcd_find_max_sup_active_icc_level()
7945 if (hba->vreg_info.vcc->max_uA) in ufshcd_find_max_sup_active_icc_level()
7947 hba->vreg_info.vcc->max_uA, in ufshcd_find_max_sup_active_icc_level()
7948 POWER_DESC_MAX_ACTV_ICC_LVLS - 1, in ufshcd_find_max_sup_active_icc_level()
7951 if (hba->vreg_info.vccq->max_uA) in ufshcd_find_max_sup_active_icc_level()
7953 hba->vreg_info.vccq->max_uA, in ufshcd_find_max_sup_active_icc_level()
7957 if (hba->vreg_info.vccq2->max_uA) in ufshcd_find_max_sup_active_icc_level()
7959 hba->vreg_info.vccq2->max_uA, in ufshcd_find_max_sup_active_icc_level()
7979 dev_err(hba->dev, in ufshcd_set_active_icc_lvl()
7986 dev_dbg(hba->dev, "%s: setting icc_level 0x%x", __func__, icc_level); in ufshcd_set_active_icc_lvl()
7992 dev_err(hba->dev, in ufshcd_set_active_icc_lvl()
8002 struct Scsi_Host *shost = sdev->host; in ufshcd_blk_pm_runtime_init()
8005 blk_pm_runtime_init(sdev->request_queue, &sdev->sdev_gendev); in ufshcd_blk_pm_runtime_init()
8006 if (sdev->rpm_autosuspend) in ufshcd_blk_pm_runtime_init()
8007 pm_runtime_set_autosuspend_delay(&sdev->sdev_gendev, in ufshcd_blk_pm_runtime_init()
8008 shost->rpm_autosuspend_delay); in ufshcd_blk_pm_runtime_init()
8013 * ufshcd_scsi_add_wlus - Adds required W-LUs
8014 * @hba: per-adapter instance
8035 * Return: zero on success (all required W-LUs are added successfully),
8036 * non-zero error value on failure (if failed to add any of the required W-LU).
8043 hba->ufs_device_wlun = __scsi_add_device(hba->host, 0, 0, in ufshcd_scsi_add_wlus()
8045 if (IS_ERR(hba->ufs_device_wlun)) { in ufshcd_scsi_add_wlus()
8046 ret = PTR_ERR(hba->ufs_device_wlun); in ufshcd_scsi_add_wlus()
8047 hba->ufs_device_wlun = NULL; in ufshcd_scsi_add_wlus()
8050 scsi_device_put(hba->ufs_device_wlun); in ufshcd_scsi_add_wlus()
8052 sdev_rpmb = __scsi_add_device(hba->host, 0, 0, in ufshcd_scsi_add_wlus()
8061 sdev_boot = __scsi_add_device(hba->host, 0, 0, in ufshcd_scsi_add_wlus()
8064 dev_err(hba->dev, "%s: BOOT WLUN not found\n", __func__); in ufshcd_scsi_add_wlus()
8072 scsi_remove_device(hba->ufs_device_wlun); in ufshcd_scsi_add_wlus()
8079 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_wb_probe()
8088 * Probe WB only for UFS-2.2 and UFS-3.1 (and later) devices or in ufshcd_wb_probe()
8092 if (!(dev_info->wspecversion >= 0x310 || in ufshcd_wb_probe()
8093 dev_info->wspecversion == 0x220 || in ufshcd_wb_probe()
8094 (hba->dev_quirks & UFS_DEVICE_QUIRK_SUPPORT_EXTENDED_FEATURES))) in ufshcd_wb_probe()
8108 dev_info->wb_buffer_type = desc_buf[DEVICE_DESC_PARAM_WB_TYPE]; in ufshcd_wb_probe()
8110 dev_info->b_presrv_uspc_en = in ufshcd_wb_probe()
8113 if (dev_info->wb_buffer_type == WB_BUF_MODE_SHARED) { in ufshcd_wb_probe()
8126 dev_info->wb_dedicated_lu = lun; in ufshcd_wb_probe()
8141 hba->caps &= ~UFSHCD_CAP_WB_EN; in ufshcd_wb_probe()
8146 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_temp_notif_probe()
8150 if (!(hba->caps & UFSHCD_CAP_TEMP_NOTIF) || dev_info->wspecversion < 0x300) in ufshcd_temp_notif_probe()
8171 if (hba->dev_info.wspecversion < 0x410) in ufshcd_device_lvl_exception_probe()
8179 atomic_set(&hba->dev_lvl_exception_count, 0); in ufshcd_device_lvl_exception_probe()
8185 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_set_rtt()
8188 int host_rtt_cap = hba->vops && hba->vops->max_num_rtt ? in ufshcd_set_rtt()
8189 hba->vops->max_num_rtt : hba->nortt; in ufshcd_set_rtt()
8191 /* RTT override makes sense only for UFS-4.0 and above */ in ufshcd_set_rtt()
8192 if (dev_info->wspecversion < 0x400) in ufshcd_set_rtt()
8197 dev_err(hba->dev, "failed reading bMaxNumOfRTT\n"); in ufshcd_set_rtt()
8205 rtt = min_t(int, dev_info->rtt_cap, host_rtt_cap); in ufshcd_set_rtt()
8212 dev_err(hba->dev, "failed writing bMaxNumOfRTT\n"); in ufshcd_set_rtt()
8219 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_fixup_dev_quirks()
8224 for (f = fixups; f->quirk; f++) { in ufshcd_fixup_dev_quirks()
8225 if ((f->wmanufacturerid == dev_info->wmanufacturerid || in ufshcd_fixup_dev_quirks()
8226 f->wmanufacturerid == UFS_ANY_VENDOR) && in ufshcd_fixup_dev_quirks()
8227 ((dev_info->model && in ufshcd_fixup_dev_quirks()
8228 STR_PRFX_EQUAL(f->model, dev_info->model)) || in ufshcd_fixup_dev_quirks()
8229 !strcmp(f->model, UFS_ANY_MODEL))) in ufshcd_fixup_dev_quirks()
8230 hba->dev_quirks |= f->quirk; in ufshcd_fixup_dev_quirks()
8252 if (ts64.tv_sec < hba->dev_info.rtc_time_baseline) { in ufshcd_update_rtc()
8253 dev_warn_once(hba->dev, "%s: Current time precedes previous setting!\n", __func__); in ufshcd_update_rtc()
8258 * The Absolute RTC mode has a 136-year limit, spanning from 2010 to 2146. If a time beyond in ufshcd_update_rtc()
8261 val = ts64.tv_sec - hba->dev_info.rtc_time_baseline; in ufshcd_update_rtc()
8272 dev_err(hba->dev, "%s: Failed to update rtc %d\n", __func__, err); in ufshcd_update_rtc()
8273 else if (hba->dev_info.rtc_type == UFS_RTC_RELATIVE) in ufshcd_update_rtc()
8274 hba->dev_info.rtc_time_baseline = ts64.tv_sec; in ufshcd_update_rtc()
8285 hba->ufshcd_state == UFSHCD_STATE_OPERATIONAL && in ufshcd_rtc_work()
8286 !hba->clk_gating.active_reqs) in ufshcd_rtc_work()
8289 if (ufshcd_is_ufs_dev_active(hba) && hba->dev_info.rtc_update_period) in ufshcd_rtc_work()
8290 schedule_delayed_work(&hba->ufs_rtc_update_work, in ufshcd_rtc_work()
8291 msecs_to_jiffies(hba->dev_info.rtc_update_period)); in ufshcd_rtc_work()
8297 struct ufs_dev_info *dev_info = &hba->dev_info; in ufs_init_rtc()
8300 dev_info->rtc_type = UFS_RTC_ABSOLUTE; in ufs_init_rtc()
8307 dev_info->rtc_time_baseline = mktime64(2010, 1, 1, 0, 0, 0) - in ufs_init_rtc()
8310 dev_info->rtc_type = UFS_RTC_RELATIVE; in ufs_init_rtc()
8311 dev_info->rtc_time_baseline = 0; in ufs_init_rtc()
8319 dev_info->rtc_update_period = 0; in ufs_init_rtc()
8327 struct ufs_dev_info *dev_info = &hba->dev_info; in ufs_get_device_desc()
8331 err = -ENOMEM; in ufs_get_device_desc()
8338 dev_err(hba->dev, "%s: Failed reading Device Desc. err = %d\n", in ufs_get_device_desc()
8347 dev_info->wmanufacturerid = desc_buf[DEVICE_DESC_PARAM_MANF_ID] << 8 | in ufs_get_device_desc()
8351 dev_info->wspecversion = desc_buf[DEVICE_DESC_PARAM_SPEC_VER] << 8 | in ufs_get_device_desc()
8353 dev_info->bqueuedepth = desc_buf[DEVICE_DESC_PARAM_Q_DPTH]; in ufs_get_device_desc()
8355 dev_info->rtt_cap = desc_buf[DEVICE_DESC_PARAM_RTT_CAP]; in ufs_get_device_desc()
8360 &dev_info->model, SD_ASCII_STD); in ufs_get_device_desc()
8362 dev_err(hba->dev, "%s: Failed reading Product Name. err = %d\n", in ufs_get_device_desc()
8367 hba->luns_avail = desc_buf[DEVICE_DESC_PARAM_NUM_LU] + in ufs_get_device_desc()
8376 if (dev_info->wspecversion >= 0x410) { in ufs_get_device_desc()
8377 hba->critical_health_count = 0; in ufs_get_device_desc()
8398 struct ufs_dev_info *dev_info = &hba->dev_info; in ufs_put_device_desc()
8400 kfree(dev_info->model); in ufs_put_device_desc()
8401 dev_info->model = NULL; in ufs_put_device_desc()
8405 * ufshcd_quirk_tune_host_pa_tactivate - Ensures that host PA_TACTIVATE is
8407 * @hba: per-adapter instance
8413 * Return: zero on success, non-zero error value on failure.
8435 dev_err(hba->dev, "%s: invalid host PA_GRANULARITY %d", in ufshcd_quirk_tune_host_pa_tactivate()
8437 return -EINVAL; in ufshcd_quirk_tune_host_pa_tactivate()
8442 dev_err(hba->dev, "%s: invalid device PA_GRANULARITY %d", in ufshcd_quirk_tune_host_pa_tactivate()
8444 return -EINVAL; in ufshcd_quirk_tune_host_pa_tactivate()
8456 pa_tactivate_us = pa_tactivate * gran_to_us_table[granularity - 1]; in ufshcd_quirk_tune_host_pa_tactivate()
8458 gran_to_us_table[peer_granularity - 1]; in ufshcd_quirk_tune_host_pa_tactivate()
8464 gran_to_us_table[peer_granularity - 1]; in ufshcd_quirk_tune_host_pa_tactivate()
8475 * ufshcd_quirk_override_pa_h8time - Ensures proper adjustment of PA_HIBERN8TIME.
8476 * @hba: per-adapter instance
8489 dev_err(hba->dev, "Failed to get PA_HIBERN8TIME: %d\n", ret); in ufshcd_quirk_override_pa_h8time()
8496 dev_err(hba->dev, "Failed updating PA_HIBERN8TIME: %d\n", ret); in ufshcd_quirk_override_pa_h8time()
8503 if (hba->dev_quirks & UFS_DEVICE_QUIRK_PA_TACTIVATE) in ufshcd_tune_unipro_params()
8507 if (hba->dev_quirks & UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE) in ufshcd_tune_unipro_params()
8510 if (hba->dev_quirks & UFS_DEVICE_QUIRK_PA_HIBER8TIME) in ufshcd_tune_unipro_params()
8516 hba->ufs_stats.hibern8_exit_cnt = 0; in ufshcd_clear_dbg_ufs_stats()
8517 hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); in ufshcd_clear_dbg_ufs_stats()
8518 hba->req_abort_count = 0; in ufshcd_clear_dbg_ufs_stats()
8528 err = -ENOMEM; in ufshcd_device_geo_params_init()
8535 dev_err(hba->dev, "%s: Failed reading Geometry Desc. err = %d\n", in ufshcd_device_geo_params_init()
8541 hba->dev_info.max_lu_supported = 32; in ufshcd_device_geo_params_init()
8543 hba->dev_info.max_lu_supported = 8; in ufshcd_device_geo_params_init()
8581 hba->dev_ref_clk_freq = in ufshcd_parse_dev_ref_clk_freq()
8584 if (hba->dev_ref_clk_freq == REF_CLK_FREQ_INVAL) in ufshcd_parse_dev_ref_clk_freq()
8585 dev_err(hba->dev, in ufshcd_parse_dev_ref_clk_freq()
8593 u32 freq = hba->dev_ref_clk_freq; in ufshcd_set_dev_ref_clk()
8599 dev_err(hba->dev, "failed reading bRefClkFreq. err = %d\n", in ufshcd_set_dev_ref_clk()
8611 dev_err(hba->dev, "bRefClkFreq setting to %lu Hz failed\n", in ufshcd_set_dev_ref_clk()
8616 dev_dbg(hba->dev, "bRefClkFreq setting to %lu Hz succeeded\n", in ufshcd_set_dev_ref_clk()
8636 dev_err(hba->dev, "%s: Failed getting device info. err = %d\n", in ufshcd_device_params_init()
8647 hba->dev_info.f_power_on_wp_en = flag; in ufshcd_device_params_init()
8649 /* Probe maximum power mode co-supported by both UFS host and device */ in ufshcd_device_params_init()
8651 dev_err(hba->dev, in ufshcd_device_params_init()
8663 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_set_timestamp_attr()
8666 if (dev_info->wspecversion < 0x400) in ufshcd_set_timestamp_attr()
8675 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in ufshcd_set_timestamp_attr()
8677 upiu_data = (struct utp_upiu_query_v4_0 *)&request->upiu_req; in ufshcd_set_timestamp_attr()
8679 put_unaligned_be64(ktime_get_real_ns(), &upiu_data->osf3); in ufshcd_set_timestamp_attr()
8684 dev_err(hba->dev, "%s: failed to set timestamp %d\n", in ufshcd_set_timestamp_attr()
8691 * ufshcd_add_lus - probe and add UFS logical units
8692 * @hba: per-adapter instance
8707 memcpy(&hba->clk_scaling.saved_pwr_info, in ufshcd_add_lus()
8708 &hba->pwr_info, in ufshcd_add_lus()
8710 hba->clk_scaling.is_allowed = true; in ufshcd_add_lus()
8716 hba->clk_scaling.is_enabled = true; in ufshcd_add_lus()
8721 * The RTC update code accesses the hba->ufs_device_wlun->sdev_gendev in ufshcd_add_lus()
8725 schedule_delayed_work(&hba->ufs_rtc_update_work, in ufshcd_add_lus()
8729 scsi_scan_host(hba->host); in ufshcd_add_lus()
8735 /* SDB - Single Doorbell */
8741 dmam_free_coherent(hba->dev, ucdl_size, hba->ucdl_base_addr, in ufshcd_release_sdb_queue()
8742 hba->ucdl_dma_addr); in ufshcd_release_sdb_queue()
8745 dmam_free_coherent(hba->dev, utrdl_size, hba->utrdl_base_addr, in ufshcd_release_sdb_queue()
8746 hba->utrdl_dma_addr); in ufshcd_release_sdb_queue()
8748 devm_kfree(hba->dev, hba->lrb); in ufshcd_release_sdb_queue()
8754 int old_nutrs = hba->nutrs; in ufshcd_alloc_mcq()
8760 hba->nutrs = ret; in ufshcd_alloc_mcq()
8769 if (hba->nutrs != old_nutrs) { in ufshcd_alloc_mcq()
8781 hba->host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_alloc_mcq()
8782 hba->reserved_slot = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_alloc_mcq()
8786 hba->nutrs = old_nutrs; in ufshcd_alloc_mcq()
8796 dev_info(hba->dev, "ESI %sconfigured\n", ret ? "is not " : ""); in ufshcd_config_mcq()
8799 if (hba->quirks & UFSHCD_QUIRK_MCQ_BROKEN_INTR) in ufshcd_config_mcq()
8803 ufshcd_mcq_config_mac(hba, hba->nutrs); in ufshcd_config_mcq()
8805 …dev_info(hba->dev, "MCQ configured, nr_queues=%d, io_queues=%d, read_queue=%d, poll_queues=%d, que… in ufshcd_config_mcq()
8806 hba->nr_hw_queues, hba->nr_queues[HCTX_TYPE_DEFAULT], in ufshcd_config_mcq()
8807 hba->nr_queues[HCTX_TYPE_READ], hba->nr_queues[HCTX_TYPE_POLL], in ufshcd_config_mcq()
8808 hba->nutrs); in ufshcd_config_mcq()
8823 if (!hba->max_pwr_info.is_valid) in ufshcd_post_device_init()
8830 if (hba->dev_ref_clk_freq != REF_CLK_FREQ_INVAL) in ufshcd_post_device_init()
8833 ret = ufshcd_config_pwr_mode(hba, &hba->max_pwr_info.info); in ufshcd_post_device_init()
8835 dev_err(hba->dev, "%s: Failed setting power mode, err = %d\n", in ufshcd_post_device_init()
8847 WARN_ON_ONCE(!hba->scsi_host_added); in ufshcd_device_init()
8849 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_device_init()
8855 if (hba->quirks & UFSHCD_QUIRK_SKIP_PH_CONFIGURATION) in ufshcd_device_init()
8865 if (hba->mcq_enabled && !init_dev_params) { in ufshcd_device_init()
8889 hba->quirks & UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH) { in ufshcd_device_init()
8899 * ufshcd_probe_hba - probe hba to detect device and initialize it
8900 * @hba: per-adapter instance
8903 * Execute link-startup and verify device initialization
8911 if (!hba->pm_op_in_progress && in ufshcd_probe_hba()
8912 (hba->quirks & UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH)) { in ufshcd_probe_hba()
8919 dev_err(hba->dev, "Host controller enable failed\n"); in ufshcd_probe_hba()
8941 /* Enable UFS Write Booster if supported */ in ufshcd_probe_hba()
8944 if (hba->ee_usr_mask) in ufshcd_probe_hba()
8952 * ufshcd_async_scan - asynchronous execution for probing hba
8962 down(&hba->host_sem); in ufshcd_async_scan()
8967 up(&hba->host_sem); in ufshcd_async_scan()
8975 pm_runtime_put_sync(hba->dev); in ufshcd_async_scan()
8978 dev_err(hba->dev, "%s failed: %d\n", __func__, ret); in ufshcd_async_scan()
8983 struct ufs_hba *hba = shost_priv(scmd->device->host); in ufshcd_eh_timed_out()
8985 if (!hba->system_suspending) { in ufshcd_eh_timed_out()
8997 dev_info(hba->dev, "%s() finished; outstanding_tasks = %#lx.\n", in ufshcd_eh_timed_out()
8998 __func__, hba->outstanding_tasks); in ufshcd_eh_timed_out()
9000 return scsi_host_busy(hba->host) ? SCSI_EH_RESET_TIMER : SCSI_EH_DONE; in ufshcd_eh_timed_out()
9034 .this_id = -1,
9055 * zero max_uA may cause unexpected behavior when regulator is in ufshcd_config_vreg_load()
9058 if (!vreg->max_uA) in ufshcd_config_vreg_load()
9061 ret = regulator_set_load(vreg->reg, ua); in ufshcd_config_vreg_load()
9064 __func__, vreg->name, ua, ret); in ufshcd_config_vreg_load()
9073 return ufshcd_config_vreg_load(hba->dev, vreg, UFS_VREG_LPM_LOAD_UA); in ufshcd_config_vreg_lpm()
9082 return ufshcd_config_vreg_load(hba->dev, vreg, vreg->max_uA); in ufshcd_config_vreg_hpm()
9088 if (regulator_count_voltages(vreg->reg) <= 0) in ufshcd_config_vreg()
9091 return ufshcd_config_vreg_load(dev, vreg, on ? vreg->max_uA : 0); in ufshcd_config_vreg()
9098 if (!vreg || vreg->enabled) in ufshcd_enable_vreg()
9103 ret = regulator_enable(vreg->reg); in ufshcd_enable_vreg()
9106 vreg->enabled = true; in ufshcd_enable_vreg()
9109 __func__, vreg->name, ret); in ufshcd_enable_vreg()
9118 if (!vreg || !vreg->enabled || vreg->always_on) in ufshcd_disable_vreg()
9121 ret = regulator_disable(vreg->reg); in ufshcd_disable_vreg()
9126 vreg->enabled = false; in ufshcd_disable_vreg()
9129 __func__, vreg->name, ret); in ufshcd_disable_vreg()
9138 struct device *dev = hba->dev; in ufshcd_setup_vreg()
9139 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_setup_vreg()
9141 ret = ufshcd_toggle_vreg(dev, info->vcc, on); in ufshcd_setup_vreg()
9145 ret = ufshcd_toggle_vreg(dev, info->vccq, on); in ufshcd_setup_vreg()
9149 ret = ufshcd_toggle_vreg(dev, info->vccq2, on); in ufshcd_setup_vreg()
9153 ufshcd_toggle_vreg(dev, info->vccq2, false); in ufshcd_setup_vreg()
9154 ufshcd_toggle_vreg(dev, info->vccq, false); in ufshcd_setup_vreg()
9155 ufshcd_toggle_vreg(dev, info->vcc, false); in ufshcd_setup_vreg()
9162 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_setup_hba_vreg()
9164 return ufshcd_toggle_vreg(hba->dev, info->vdd_hba, on); in ufshcd_setup_hba_vreg()
9174 vreg->reg = devm_regulator_get(dev, vreg->name); in ufshcd_get_vreg()
9175 if (IS_ERR(vreg->reg)) { in ufshcd_get_vreg()
9176 ret = PTR_ERR(vreg->reg); in ufshcd_get_vreg()
9178 __func__, vreg->name, ret); in ufshcd_get_vreg()
9188 struct device *dev = hba->dev; in ufshcd_init_vreg()
9189 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_init_vreg()
9191 ret = ufshcd_get_vreg(dev, info->vcc); in ufshcd_init_vreg()
9195 ret = ufshcd_get_vreg(dev, info->vccq); in ufshcd_init_vreg()
9197 ret = ufshcd_get_vreg(dev, info->vccq2); in ufshcd_init_vreg()
9204 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_init_hba_vreg()
9206 return ufshcd_get_vreg(hba->dev, info->vdd_hba); in ufshcd_init_hba_vreg()
9213 struct list_head *head = &hba->clk_list_head; in ufshcd_setup_clocks()
9225 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_setup_clocks()
9231 clki->keep_link_active) in ufshcd_setup_clocks()
9234 clk_state_changed = on ^ clki->enabled; in ufshcd_setup_clocks()
9235 if (on && !clki->enabled) { in ufshcd_setup_clocks()
9236 ret = clk_prepare_enable(clki->clk); in ufshcd_setup_clocks()
9238 dev_err(hba->dev, "%s: %s prepare enable failed, %d\n", in ufshcd_setup_clocks()
9239 __func__, clki->name, ret); in ufshcd_setup_clocks()
9242 } else if (!on && clki->enabled) { in ufshcd_setup_clocks()
9243 clk_disable_unprepare(clki->clk); in ufshcd_setup_clocks()
9245 clki->enabled = on; in ufshcd_setup_clocks()
9246 dev_dbg(hba->dev, "%s: clk: %s %sabled\n", __func__, in ufshcd_setup_clocks()
9247 clki->name, on ? "en" : "dis"); in ufshcd_setup_clocks()
9260 if (!IS_ERR_OR_NULL(clki->clk) && clki->enabled) in ufshcd_setup_clocks()
9261 clk_disable_unprepare(clki->clk); in ufshcd_setup_clocks()
9263 } else if (!ret && on && hba->clk_gating.is_initialized) { in ufshcd_setup_clocks()
9264 scoped_guard(spinlock_irqsave, &hba->clk_gating.lock) in ufshcd_setup_clocks()
9265 hba->clk_gating.state = CLKS_ON; in ufshcd_setup_clocks()
9267 hba->clk_gating.state); in ufshcd_setup_clocks()
9280 int ret = device_property_read_u32(hba->dev, "ref-clk-freq", &freq); in ufshcd_parse_ref_clk_property()
9283 dev_dbg(hba->dev, "Cannot query 'ref-clk-freq' property = %d", ret); in ufshcd_parse_ref_clk_property()
9294 struct device *dev = hba->dev; in ufshcd_init_clocks()
9295 struct list_head *head = &hba->clk_list_head; in ufshcd_init_clocks()
9301 if (!clki->name) in ufshcd_init_clocks()
9304 clki->clk = devm_clk_get(dev, clki->name); in ufshcd_init_clocks()
9305 if (IS_ERR(clki->clk)) { in ufshcd_init_clocks()
9306 ret = PTR_ERR(clki->clk); in ufshcd_init_clocks()
9308 __func__, clki->name, ret); in ufshcd_init_clocks()
9317 if (!strcmp(clki->name, "ref_clk")) in ufshcd_init_clocks()
9318 ufshcd_parse_dev_ref_clk_freq(hba, clki->clk); in ufshcd_init_clocks()
9320 if (clki->max_freq) { in ufshcd_init_clocks()
9321 ret = clk_set_rate(clki->clk, clki->max_freq); in ufshcd_init_clocks()
9323 dev_err(hba->dev, "%s: %s clk set rate(%dHz) failed, %d\n", in ufshcd_init_clocks()
9324 __func__, clki->name, in ufshcd_init_clocks()
9325 clki->max_freq, ret); in ufshcd_init_clocks()
9328 clki->curr_freq = clki->max_freq; in ufshcd_init_clocks()
9331 clki->name, clk_get_rate(clki->clk)); in ufshcd_init_clocks()
9335 if (hba->use_pm_opp) { in ufshcd_init_clocks()
9338 dev_err(hba->dev, "%s: failed to set OPP: %d", __func__, in ufshcd_init_clocks()
9352 if (!hba->vops) in ufshcd_variant_hba_init()
9357 dev_err_probe(hba->dev, err, in ufshcd_variant_hba_init()
9366 if (!hba->vops) in ufshcd_variant_hba_exit()
9395 if (hba->dev_ref_clk_freq == REF_CLK_FREQ_INVAL) in ufshcd_hba_init()
9396 hba->dev_ref_clk_freq = ufshcd_parse_ref_clk_property(hba); in ufshcd_hba_init()
9417 hba->is_powered = true; in ufshcd_hba_init()
9432 if (hba->is_powered) { in ufshcd_hba_exit()
9436 if (hba->eh_wq) in ufshcd_hba_exit()
9437 destroy_workqueue(hba->eh_wq); in ufshcd_hba_exit()
9443 hba->is_powered = false; in ufshcd_hba_exit()
9475 * ufshcd_set_dev_pwr_mode - sends START STOP UNIT command to set device
9491 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_set_dev_pwr_mode()
9492 sdp = hba->ufs_device_wlun; in ufshcd_set_dev_pwr_mode()
9496 ret = -ENODEV; in ufshcd_set_dev_pwr_mode()
9497 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_set_dev_pwr_mode()
9503 * If scsi commands fail, the scsi mid-layer schedules scsi error- in ufshcd_set_dev_pwr_mode()
9508 hba->host->eh_noresume = 1; in ufshcd_set_dev_pwr_mode()
9523 ret = -EIO; in ufshcd_set_dev_pwr_mode()
9526 hba->curr_dev_pwr_mode = pwr_mode; in ufshcd_set_dev_pwr_mode()
9530 hba->host->eh_noresume = 0; in ufshcd_set_dev_pwr_mode()
9540 if (req_link_state == hba->uic_link_state) in ufshcd_link_state_transition()
9548 dev_err(hba->dev, "%s: hibern8 enter failed %d\n", in ufshcd_link_state_transition()
9559 (!check_for_bkops || !hba->auto_bkops_enabled)) { in ufshcd_link_state_transition()
9572 dev_err(hba->dev, "%s: hibern8 enter failed %d\n", in ufshcd_link_state_transition()
9603 hba->dev_quirks & UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM) in ufshcd_vreg_set_lpm()
9618 * If Write Booster is enabled and the device needs to flush the WB in ufshcd_vreg_set_lpm()
9622 !hba->dev_info.is_lu_power_on_wp) { in ufshcd_vreg_set_lpm()
9626 ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, false); in ufshcd_vreg_set_lpm()
9629 ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq); in ufshcd_vreg_set_lpm()
9630 ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq2); in ufshcd_vreg_set_lpm()
9635 * Some UFS devices require delay after VCC power rail is turned-off. in ufshcd_vreg_set_lpm()
9637 if (vcc_off && hba->vreg_info.vcc && in ufshcd_vreg_set_lpm()
9638 hba->dev_quirks & UFS_DEVICE_QUIRK_DELAY_AFTER_LPM) in ufshcd_vreg_set_lpm()
9648 !hba->dev_info.is_lu_power_on_wp) { in ufshcd_vreg_set_hpm()
9652 ret = ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq); in ufshcd_vreg_set_hpm()
9655 ret = ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq2); in ufshcd_vreg_set_hpm()
9659 ret = ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, true); in ufshcd_vreg_set_hpm()
9664 ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq); in ufshcd_vreg_set_hpm()
9666 ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, false); in ufshcd_vreg_set_hpm()
9692 hba->pm_op_in_progress = true; in __ufshcd_wl_suspend()
9695 hba->rpm_lvl : hba->spm_lvl; in __ufshcd_wl_suspend()
9708 hba->clk_gating.is_suspended = true; in __ufshcd_wl_suspend()
9718 if ((req_dev_pwr_mode == hba->curr_dev_pwr_mode) && in __ufshcd_wl_suspend()
9719 (req_link_state == hba->uic_link_state)) in __ufshcd_wl_suspend()
9727 ret = -EBUSY; in __ufshcd_wl_suspend()
9746 ret = -EBUSY; in __ufshcd_wl_suspend()
9758 hba->dev_info.b_rpm_dev_flush_capable = in __ufshcd_wl_suspend()
9759 hba->auto_bkops_enabled || in __ufshcd_wl_suspend()
9766 flush_work(&hba->eeh_work); in __ufshcd_wl_suspend()
9772 if (req_dev_pwr_mode != hba->curr_dev_pwr_mode) { in __ufshcd_wl_suspend()
9777 if (!hba->dev_info.b_rpm_dev_flush_capable) { in __ufshcd_wl_suspend()
9786 ret = -EBUSY; in __ufshcd_wl_suspend()
9806 ret = -EBUSY; in __ufshcd_wl_suspend()
9821 cancel_delayed_work_sync(&hba->ufs_rtc_update_work); in __ufshcd_wl_suspend()
9850 hba->dev_info.b_rpm_dev_flush_capable = false; in __ufshcd_wl_suspend()
9852 if (hba->dev_info.b_rpm_dev_flush_capable) { in __ufshcd_wl_suspend()
9853 schedule_delayed_work(&hba->rpm_dev_flush_recheck_work, in __ufshcd_wl_suspend()
9859 hba->clk_gating.is_suspended = false; in __ufshcd_wl_suspend()
9862 hba->pm_op_in_progress = false; in __ufshcd_wl_suspend()
9870 enum uic_link_state old_link_state = hba->uic_link_state; in __ufshcd_wl_resume()
9872 hba->pm_op_in_progress = true; in __ufshcd_wl_resume()
9891 dev_err(hba->dev, "%s: hibern8 exit failed %d\n", in __ufshcd_wl_resume()
9916 schedule_delayed_work(&hba->ufs_rtc_update_work, in __ufshcd_wl_resume()
9925 * keep auto-bkops enabled or else disable it. in __ufshcd_wl_resume()
9929 if (hba->ee_usr_mask) in __ufshcd_wl_resume()
9935 if (hba->dev_info.b_rpm_dev_flush_capable) { in __ufshcd_wl_resume()
9936 hba->dev_info.b_rpm_dev_flush_capable = false; in __ufshcd_wl_resume()
9937 cancel_delayed_work(&hba->rpm_dev_flush_recheck_work); in __ufshcd_wl_resume()
9952 hba->clk_gating.is_suspended = false; in __ufshcd_wl_resume()
9954 hba->pm_op_in_progress = false; in __ufshcd_wl_resume()
9965 hba = shost_priv(sdev->host); in ufshcd_wl_runtime_suspend()
9969 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_runtime_suspend()
9973 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_runtime_suspend()
9985 hba = shost_priv(sdev->host); in ufshcd_wl_runtime_resume()
9989 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_runtime_resume()
9993 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_runtime_resume()
10007 hba = shost_priv(sdev->host); in ufshcd_wl_suspend()
10008 down(&hba->host_sem); in ufshcd_wl_suspend()
10009 hba->system_suspending = true; in ufshcd_wl_suspend()
10016 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_suspend()
10017 up(&hba->host_sem); in ufshcd_wl_suspend()
10022 hba->is_sys_suspended = true; in ufshcd_wl_suspend()
10025 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_suspend()
10037 hba = shost_priv(sdev->host); in ufshcd_wl_resume()
10044 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_resume()
10048 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_resume()
10050 hba->is_sys_suspended = false; in ufshcd_wl_resume()
10051 hba->system_suspending = false; in ufshcd_wl_resume()
10052 up(&hba->host_sem); in ufshcd_wl_resume()
10058 * ufshcd_suspend - helper function for suspend operations
10062 * and set vreg and hba-vreg in lpm mode.
10070 if (!hba->is_powered) in ufshcd_suspend()
10083 hba->clk_gating.state = CLKS_OFF; in ufshcd_suspend()
10085 hba->clk_gating.state); in ufshcd_suspend()
10097 * ufshcd_resume - helper function for resume operations
10103 * Return: 0 for success and non-zero for failure.
10109 if (!hba->is_powered) in ufshcd_resume()
10138 * ufshcd_system_suspend - system suspend callback
10144 * Return: 0 for success and non-zero for failure.
10152 if (pm_runtime_suspended(hba->dev)) in ufshcd_system_suspend()
10159 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_system_suspend()
10165 * ufshcd_system_resume - system resume callback
10171 * Return: 0 for success and non-zero for failure.
10179 if (pm_runtime_suspended(hba->dev)) in ufshcd_system_resume()
10187 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_system_resume()
10196 * ufshcd_runtime_suspend - runtime suspend callback
10201 * Return: 0 for success and non-zero for failure.
10213 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_runtime_suspend()
10219 * ufshcd_runtime_resume - runtime resume routine
10240 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_runtime_resume()
10249 struct ufs_hba *hba = shost_priv(sdev->host); in ufshcd_wl_shutdown()
10251 down(&hba->host_sem); in ufshcd_wl_shutdown()
10252 hba->shutting_down = true; in ufshcd_wl_shutdown()
10253 up(&hba->host_sem); in ufshcd_wl_shutdown()
10258 shost_for_each_device(sdev, hba->host) { in ufshcd_wl_shutdown()
10259 if (sdev == hba->ufs_device_wlun) in ufshcd_wl_shutdown()
10261 mutex_lock(&sdev->state_mutex); in ufshcd_wl_shutdown()
10263 mutex_unlock(&sdev->state_mutex); in ufshcd_wl_shutdown()
10274 hba->is_powered = false; in ufshcd_wl_shutdown()
10278 * ufshcd_remove - de-allocate SCSI host and host memory space
10284 if (hba->ufs_device_wlun) in ufshcd_remove()
10288 ufs_sysfs_remove_nodes(hba->dev); in ufshcd_remove()
10289 cancel_delayed_work_sync(&hba->ufs_rtc_update_work); in ufshcd_remove()
10290 blk_mq_destroy_queue(hba->tmf_queue); in ufshcd_remove()
10291 blk_put_queue(hba->tmf_queue); in ufshcd_remove()
10292 blk_mq_free_tag_set(&hba->tmf_tag_set); in ufshcd_remove()
10293 if (hba->scsi_host_added) in ufshcd_remove()
10294 scsi_remove_host(hba->host); in ufshcd_remove()
10296 ufshcd_disable_intr(hba, hba->intr_mask); in ufshcd_remove()
10322 ufshcd_writel(hba, lower_32_bits(hba->utrdl_dma_addr), in ufshcd_system_restore()
10324 ufshcd_writel(hba, upper_32_bits(hba->utrdl_dma_addr), in ufshcd_system_restore()
10326 ufshcd_writel(hba, lower_32_bits(hba->utmrdl_dma_addr), in ufshcd_system_restore()
10328 ufshcd_writel(hba, upper_32_bits(hba->utmrdl_dma_addr), in ufshcd_system_restore()
10350 * ufshcd_set_dma_mask - Set dma mask based on the controller
10354 * Return: 0 for success, non-zero for failure.
10358 if (hba->vops && hba->vops->set_dma_mask) in ufshcd_set_dma_mask()
10359 return hba->vops->set_dma_mask(hba); in ufshcd_set_dma_mask()
10360 if (hba->capabilities & MASK_64_ADDRESSING_SUPPORT) { in ufshcd_set_dma_mask()
10361 if (!dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(64))) in ufshcd_set_dma_mask()
10364 return dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(32)); in ufshcd_set_dma_mask()
10368 * ufshcd_devres_release - devres cleanup handler, invoked during release of
10369 * hba->dev
10378 * ufshcd_alloc_host - allocate Host Bus Adapter (HBA)
10382 * Return: 0 on success, non-zero value on failure.
10397 err = -ENODEV; in ufshcd_alloc_host()
10405 err = -ENOMEM; in ufshcd_alloc_host()
10415 host->nr_maps = HCTX_TYPE_POLL + 1; in ufshcd_alloc_host()
10417 hba->host = host; in ufshcd_alloc_host()
10418 hba->dev = dev; in ufshcd_alloc_host()
10419 hba->dev_ref_clk_freq = REF_CLK_FREQ_INVAL; in ufshcd_alloc_host()
10420 hba->nop_out_timeout = NOP_OUT_TIMEOUT; in ufshcd_alloc_host()
10422 INIT_LIST_HEAD(&hba->clk_list_head); in ufshcd_alloc_host()
10423 spin_lock_init(&hba->outstanding_lock); in ufshcd_alloc_host()
10457 dev_err(hba->dev, "MCQ mode is disabled, err=%d\n", in ufshcd_add_scsi_host()
10461 if (!is_mcq_supported(hba) && !hba->lsdb_sup) { in ufshcd_add_scsi_host()
10462 dev_err(hba->dev, in ufshcd_add_scsi_host()
10465 return -EINVAL; in ufshcd_add_scsi_host()
10468 err = scsi_add_host(hba->host, hba->dev); in ufshcd_add_scsi_host()
10470 dev_err(hba->dev, "scsi_add_host failed\n"); in ufshcd_add_scsi_host()
10473 hba->scsi_host_added = true; in ufshcd_add_scsi_host()
10475 hba->tmf_tag_set = (struct blk_mq_tag_set) { in ufshcd_add_scsi_host()
10477 .queue_depth = hba->nutmrs, in ufshcd_add_scsi_host()
10480 err = blk_mq_alloc_tag_set(&hba->tmf_tag_set); in ufshcd_add_scsi_host()
10483 hba->tmf_queue = blk_mq_alloc_queue(&hba->tmf_tag_set, NULL, NULL); in ufshcd_add_scsi_host()
10484 if (IS_ERR(hba->tmf_queue)) { in ufshcd_add_scsi_host()
10485 err = PTR_ERR(hba->tmf_queue); in ufshcd_add_scsi_host()
10488 hba->tmf_rqs = devm_kcalloc(hba->dev, hba->nutmrs, in ufshcd_add_scsi_host()
10489 sizeof(*hba->tmf_rqs), GFP_KERNEL); in ufshcd_add_scsi_host()
10490 if (!hba->tmf_rqs) { in ufshcd_add_scsi_host()
10491 err = -ENOMEM; in ufshcd_add_scsi_host()
10498 blk_mq_destroy_queue(hba->tmf_queue); in ufshcd_add_scsi_host()
10499 blk_put_queue(hba->tmf_queue); in ufshcd_add_scsi_host()
10502 blk_mq_free_tag_set(&hba->tmf_tag_set); in ufshcd_add_scsi_host()
10505 if (hba->scsi_host_added) in ufshcd_add_scsi_host()
10506 scsi_remove_host(hba->host); in ufshcd_add_scsi_host()
10512 * ufshcd_init - Driver initialization routine
10513 * @hba: per-adapter instance
10517 * Return: 0 on success, non-zero value on failure.
10522 struct Scsi_Host *host = hba->host; in ufshcd_init()
10523 struct device *dev = hba->dev; in ufshcd_init()
10533 dev_err(hba->dev, in ufshcd_init()
10535 err = -ENODEV; in ufshcd_init()
10539 hba->mmio_base = mmio_base; in ufshcd_init()
10540 hba->irq = irq; in ufshcd_init()
10541 hba->vps = &ufs_hba_vps; in ufshcd_init()
10547 spin_lock_init(&hba->clk_gating.lock); in ufshcd_init()
10557 hba->rpm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( in ufshcd_init()
10560 hba->spm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( in ufshcd_init()
10564 init_completion(&hba->dev_cmd.complete); in ufshcd_init()
10576 hba->ufs_version = ufshcd_get_ufs_version(hba); in ufshcd_init()
10579 hba->intr_mask = ufshcd_get_intr_mask(hba); in ufshcd_init()
10583 dev_err(hba->dev, "set dma mask failed\n"); in ufshcd_init()
10590 dev_err(hba->dev, "Memory allocation failed\n"); in ufshcd_init()
10597 host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_init()
10598 host->cmd_per_lun = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_init()
10599 host->max_id = UFSHCD_MAX_ID; in ufshcd_init()
10600 host->max_lun = UFS_MAX_LUNS; in ufshcd_init()
10601 host->max_channel = UFSHCD_MAX_CHANNEL; in ufshcd_init()
10602 host->unique_id = host->host_no; in ufshcd_init()
10603 host->max_cmd_len = UFS_CDB_SIZE; in ufshcd_init()
10604 host->queuecommand_may_block = !!(hba->caps & UFSHCD_CAP_CLK_GATING); in ufshcd_init()
10607 if (host->rpm_autosuspend_delay == 0) in ufshcd_init()
10608 host->rpm_autosuspend_delay = RPM_AUTOSUSPEND_DELAY_MS; in ufshcd_init()
10610 hba->max_pwr_info.is_valid = false; in ufshcd_init()
10613 hba->eh_wq = alloc_ordered_workqueue("ufs_eh_wq_%d", WQ_MEM_RECLAIM, in ufshcd_init()
10614 hba->host->host_no); in ufshcd_init()
10615 if (!hba->eh_wq) { in ufshcd_init()
10616 dev_err(hba->dev, "%s: failed to create eh workqueue\n", in ufshcd_init()
10618 err = -ENOMEM; in ufshcd_init()
10621 INIT_WORK(&hba->eh_work, ufshcd_err_handler); in ufshcd_init()
10622 INIT_WORK(&hba->eeh_work, ufshcd_exception_event_handler); in ufshcd_init()
10624 sema_init(&hba->host_sem, 1); in ufshcd_init()
10627 mutex_init(&hba->uic_cmd_mutex); in ufshcd_init()
10630 mutex_init(&hba->dev_cmd.lock); in ufshcd_init()
10633 mutex_init(&hba->ee_ctrl_mutex); in ufshcd_init()
10635 mutex_init(&hba->wb_mutex); in ufshcd_init()
10636 init_rwsem(&hba->clk_scaling_lock); in ufshcd_init()
10659 dev_err(hba->dev, "request irq failed\n"); in ufshcd_init()
10662 hba->is_irq_enabled = true; in ufshcd_init()
10673 dev_err(hba->dev, "Host controller enable failed\n"); in ufshcd_init()
10679 INIT_DELAYED_WORK(&hba->rpm_dev_flush_recheck_work, ufshcd_rpm_dev_flush_recheck_work); in ufshcd_init()
10680 INIT_DELAYED_WORK(&hba->ufs_rtc_update_work, ufshcd_rtc_work); in ufshcd_init()
10682 /* Set the default auto-hiberate idle timer value to 150 ms */ in ufshcd_init()
10683 if (ufshcd_is_auto_hibern8_supported(hba) && !hba->ahit) { in ufshcd_init()
10684 hba->ahit = FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 150) | in ufshcd_init()
10692 * We are assuming that device wasn't put in sleep/power-down in ufshcd_init()
10702 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_init()
10708 if (hba->quirks & UFSHCD_QUIRK_SKIP_PH_CONFIGURATION) in ufshcd_init()
10743 ufs_sysfs_add_nodes(hba->dev); in ufshcd_init()
10750 hba->is_irq_enabled = false; in ufshcd_init()
10761 if (hba->complete_put) { in ufshcd_resume_complete()
10763 hba->complete_put = false; in ufshcd_resume_complete()
10770 struct device *dev = &hba->ufs_device_wlun->sdev_gendev; in ufshcd_rpm_ok_for_spm()
10776 spin_lock_irqsave(&dev->power.lock, flags); in ufshcd_rpm_ok_for_spm()
10777 dev_pwr_mode = ufs_get_pm_lvl_to_dev_pwr_mode(hba->spm_lvl); in ufshcd_rpm_ok_for_spm()
10778 link_state = ufs_get_pm_lvl_to_link_pwr_state(hba->spm_lvl); in ufshcd_rpm_ok_for_spm()
10780 hba->curr_dev_pwr_mode == dev_pwr_mode && in ufshcd_rpm_ok_for_spm()
10781 hba->uic_link_state == link_state && in ufshcd_rpm_ok_for_spm()
10782 !hba->dev_info.b_rpm_dev_flush_capable; in ufshcd_rpm_ok_for_spm()
10783 spin_unlock_irqrestore(&dev->power.lock, flags); in ufshcd_rpm_ok_for_spm()
10794 * SCSI assumes that runtime-pm and system-pm for scsi drivers in __ufshcd_suspend_prepare()
10795 * are same. And it doesn't wake up the device for system-suspend in __ufshcd_suspend_prepare()
10799 if (hba->ufs_device_wlun) { in __ufshcd_suspend_prepare()
10809 if (ret < 0 && ret != -EACCES) { in __ufshcd_suspend_prepare()
10814 hba->complete_put = true; in __ufshcd_suspend_prepare()
10830 struct ufs_hba *hba = shost_priv(sdev->host); in ufshcd_wl_poweroff()
10842 return -ENODEV; in ufshcd_wl_probe()
10844 blk_pm_runtime_init(sdev->request_queue, dev); in ufshcd_wl_probe()
10872 * gcc compilers before version 10 cannot do constant-folding for in ufshcd_check_header_layout()
10873 * sub-byte bitfields. Hence skip the layout checks for gcc 9 and in ufshcd_check_header_layout()
10917 * ufs_dev_wlun_template - describes ufs device wlun
10918 * ufs-device wlun - used to send pm commands
10919 * All luns are consumers of ufs-device wlun.
10923 * With ufs design, SSU should be sent to ufs-device wlun.