Lines Matching +full:booster +full:- +full:supply
1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2011-2013 Samsung India Software Operations
5 * Copyright (c) 2013-2016, The Linux Foundation. All rights reserved.
17 #include <linux/blk-pm.h>
31 #include "ufshcd-priv.h"
34 #include "ufs-sysfs.h"
35 #include "ufs-debugfs.h"
36 #include "ufs-fault-injection.h"
38 #include "ufshcd-crypto.h"
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()
329 if (!hba->is_irq_enabled) { in ufshcd_enable_irq()
330 enable_irq(hba->irq); in ufshcd_enable_irq()
331 hba->is_irq_enabled = true; in ufshcd_enable_irq()
338 if (hba->is_irq_enabled) { in ufshcd_disable_irq()
339 disable_irq(hba->irq); in ufshcd_disable_irq()
340 hba->is_irq_enabled = false; in ufshcd_disable_irq()
361 struct utp_upiu_req *rq = hba->lrb[tag].ucd_req_ptr; in ufshcd_add_cmd_upiu_trace()
368 header = &rq->header; in ufshcd_add_cmd_upiu_trace()
370 header = &hba->lrb[tag].ucd_rsp_ptr->header; in ufshcd_add_cmd_upiu_trace()
372 trace_ufshcd_upiu(dev_name(hba->dev), str_t, header, &rq->sc.cdb, in ufshcd_add_cmd_upiu_trace()
383 trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq_rsp->header, in ufshcd_add_query_upiu_trace()
384 &rq_rsp->qr, UFS_TSF_OSF); in ufshcd_add_query_upiu_trace()
390 struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[tag]; in ufshcd_add_tm_upiu_trace()
396 trace_ufshcd_upiu(dev_name(hba->dev), str_t, in ufshcd_add_tm_upiu_trace()
397 &descp->upiu_req.req_header, in ufshcd_add_tm_upiu_trace()
398 &descp->upiu_req.input_param1, in ufshcd_add_tm_upiu_trace()
401 trace_ufshcd_upiu(dev_name(hba->dev), str_t, in ufshcd_add_tm_upiu_trace()
402 &descp->upiu_rsp.rsp_header, in ufshcd_add_tm_upiu_trace()
403 &descp->upiu_rsp.output_param1, in ufshcd_add_tm_upiu_trace()
417 cmd = ucmd->command; in ufshcd_add_uic_command_trace()
421 trace_ufshcd_uic_command(dev_name(hba->dev), str_t, cmd, in ufshcd_add_uic_command_trace()
434 int hwq_id = -1; in ufshcd_add_command_trace()
435 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_add_command_trace()
436 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_add_command_trace()
438 int transfer_len = -1; in ufshcd_add_command_trace()
448 opcode = cmd->cmnd[0]; in ufshcd_add_command_trace()
455 be32_to_cpu(lrbp->ucd_req_ptr->sc.exp_data_transfer_len); in ufshcd_add_command_trace()
458 group_id = lrbp->cmd->cmnd[6]; in ufshcd_add_command_trace()
469 if (hba->mcq_enabled) { in ufshcd_add_command_trace()
472 hwq_id = hwq->id; in ufshcd_add_command_trace()
476 trace_ufshcd_command(cmd->device, str_t, tag, doorbell, hwq_id, in ufshcd_add_command_trace()
483 struct list_head *head = &hba->clk_list_head; in ufshcd_print_clk_freqs()
489 if (!IS_ERR_OR_NULL(clki->clk) && clki->min_freq && in ufshcd_print_clk_freqs()
490 clki->max_freq) in ufshcd_print_clk_freqs()
491 dev_err(hba->dev, "clk: %s, rate: %u\n", in ufshcd_print_clk_freqs()
492 clki->name, clki->curr_freq); in ufshcd_print_clk_freqs()
506 e = &hba->ufs_stats.event[id]; in ufshcd_print_evt()
509 int p = (i + e->pos) % UFS_EVENT_HIST_LENGTH; in ufshcd_print_evt()
511 if (e->tstamp[p] == 0) in ufshcd_print_evt()
513 dev_err(hba->dev, "%s[%d] = 0x%x at %lld us\n", err_name, p, in ufshcd_print_evt()
514 e->val[p], div_u64(e->tstamp[p], 1000)); in ufshcd_print_evt()
519 dev_err(hba->dev, "No record of %s\n", err_name); in ufshcd_print_evt()
521 dev_err(hba->dev, "%s: total cnt=%llu\n", err_name, e->cnt); in ufshcd_print_evt()
557 lrbp = &hba->lrb[tag]; in ufshcd_print_tr()
559 dev_err(hba->dev, "UPIU[%d] - issue time %lld us\n", in ufshcd_print_tr()
560 tag, div_u64(lrbp->issue_time_stamp_local_clock, 1000)); in ufshcd_print_tr()
561 dev_err(hba->dev, "UPIU[%d] - complete time %lld us\n", in ufshcd_print_tr()
562 tag, div_u64(lrbp->compl_time_stamp_local_clock, 1000)); in ufshcd_print_tr()
563 dev_err(hba->dev, in ufshcd_print_tr()
564 "UPIU[%d] - Transfer Request Descriptor phys@0x%llx\n", in ufshcd_print_tr()
565 tag, (u64)lrbp->utrd_dma_addr); in ufshcd_print_tr()
567 ufshcd_hex_dump("UPIU TRD: ", lrbp->utr_descriptor_ptr, in ufshcd_print_tr()
569 dev_err(hba->dev, "UPIU[%d] - Request UPIU phys@0x%llx\n", tag, in ufshcd_print_tr()
570 (u64)lrbp->ucd_req_dma_addr); in ufshcd_print_tr()
571 ufshcd_hex_dump("UPIU REQ: ", lrbp->ucd_req_ptr, in ufshcd_print_tr()
573 dev_err(hba->dev, "UPIU[%d] - Response UPIU phys@0x%llx\n", tag, in ufshcd_print_tr()
574 (u64)lrbp->ucd_rsp_dma_addr); in ufshcd_print_tr()
575 ufshcd_hex_dump("UPIU RSP: ", lrbp->ucd_rsp_ptr, in ufshcd_print_tr()
579 lrbp->utr_descriptor_ptr->prd_table_length); in ufshcd_print_tr()
580 if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) in ufshcd_print_tr()
583 dev_err(hba->dev, in ufshcd_print_tr()
584 "UPIU[%d] - PRDT - %d entries phys@0x%llx\n", in ufshcd_print_tr()
586 (u64)lrbp->ucd_prdt_dma_addr); in ufshcd_print_tr()
589 ufshcd_hex_dump("UPIU PRDT: ", lrbp->ucd_prdt_ptr, in ufshcd_print_tr()
595 struct scsi_device *sdev = req->q->queuedata; in ufshcd_print_tr_iter()
596 struct Scsi_Host *shost = sdev->host; in ufshcd_print_tr_iter()
599 ufshcd_print_tr(hba, req->tag, *(bool *)priv); in ufshcd_print_tr_iter()
605 * ufshcd_print_trs_all - print trs for all started requests.
606 * @hba: per-adapter instance.
611 blk_mq_tagset_busy_iter(&hba->host->tag_set, ufshcd_print_tr_iter, &pr_prdt); in ufshcd_print_trs_all()
618 for_each_set_bit(tag, &bitmap, hba->nutmrs) { in ufshcd_print_tmrs()
619 struct utp_task_req_desc *tmrdp = &hba->utmrdl_base_addr[tag]; in ufshcd_print_tmrs()
621 dev_err(hba->dev, "TM[%d] - Task Management Header\n", tag); in ufshcd_print_tmrs()
628 const struct scsi_device *sdev_ufs = hba->ufs_device_wlun; in ufshcd_print_host_state()
630 dev_err(hba->dev, "UFS Host state=%d\n", hba->ufshcd_state); in ufshcd_print_host_state()
631 dev_err(hba->dev, "%d outstanding reqs, tasks=0x%lx\n", in ufshcd_print_host_state()
632 scsi_host_busy(hba->host), hba->outstanding_tasks); in ufshcd_print_host_state()
633 dev_err(hba->dev, "saved_err=0x%x, saved_uic_err=0x%x\n", in ufshcd_print_host_state()
634 hba->saved_err, hba->saved_uic_err); in ufshcd_print_host_state()
635 dev_err(hba->dev, "Device power mode=%d, UIC link state=%d\n", in ufshcd_print_host_state()
636 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_print_host_state()
637 dev_err(hba->dev, "PM in progress=%d, sys. suspended=%d\n", in ufshcd_print_host_state()
638 hba->pm_op_in_progress, hba->is_sys_suspended); in ufshcd_print_host_state()
639 dev_err(hba->dev, "Auto BKOPS=%d, Host self-block=%d\n", in ufshcd_print_host_state()
640 hba->auto_bkops_enabled, hba->host->host_self_blocked); in ufshcd_print_host_state()
641 dev_err(hba->dev, "Clk gate=%d\n", hba->clk_gating.state); in ufshcd_print_host_state()
642 dev_err(hba->dev, in ufshcd_print_host_state()
644 div_u64(hba->ufs_stats.last_hibern8_exit_tstamp, 1000), in ufshcd_print_host_state()
645 hba->ufs_stats.hibern8_exit_cnt); in ufshcd_print_host_state()
646 dev_err(hba->dev, "last intr at %lld us, last intr status=0x%x\n", in ufshcd_print_host_state()
647 div_u64(hba->ufs_stats.last_intr_ts, 1000), in ufshcd_print_host_state()
648 hba->ufs_stats.last_intr_status); in ufshcd_print_host_state()
649 dev_err(hba->dev, "error handling flags=0x%x, req. abort count=%d\n", in ufshcd_print_host_state()
650 hba->eh_flags, hba->req_abort_count); in ufshcd_print_host_state()
651 dev_err(hba->dev, "hba->ufs_version=0x%x, Host capabilities=0x%x, caps=0x%x\n", in ufshcd_print_host_state()
652 hba->ufs_version, hba->capabilities, hba->caps); in ufshcd_print_host_state()
653 dev_err(hba->dev, "quirks=0x%x, dev. quirks=0x%x\n", hba->quirks, in ufshcd_print_host_state()
654 hba->dev_quirks); in ufshcd_print_host_state()
656 dev_err(hba->dev, "UFS dev info: %.8s %.16s rev %.4s\n", in ufshcd_print_host_state()
657 sdev_ufs->vendor, sdev_ufs->model, sdev_ufs->rev); in ufshcd_print_host_state()
663 * ufshcd_print_pwr_info - print power params as saved in hba
665 * @hba: per-adapter instance
681 * never-ending cycles of messages written back to storage by user space in ufshcd_print_pwr_info()
684 dev_dbg(hba->dev, "%s:[RX, TX]: gear=[%d, %d], lane[%d, %d], pwr[%s, %s], rate = %d\n", in ufshcd_print_pwr_info()
686 hba->pwr_info.gear_rx, hba->pwr_info.gear_tx, in ufshcd_print_pwr_info()
687 hba->pwr_info.lane_rx, hba->pwr_info.lane_tx, in ufshcd_print_pwr_info()
688 names[hba->pwr_info.pwr_rx], in ufshcd_print_pwr_info()
689 names[hba->pwr_info.pwr_tx], in ufshcd_print_pwr_info()
690 hba->pwr_info.hs_rate); in ufshcd_print_pwr_info()
702 hba->dev_info.wb_enabled = false; in ufshcd_device_reset()
703 hba->dev_info.wb_buf_flush_enabled = false; in ufshcd_device_reset()
705 if (hba->dev_info.rtc_type == UFS_RTC_RELATIVE) in ufshcd_device_reset()
706 hba->dev_info.rtc_time_baseline = 0; in ufshcd_device_reset()
708 if (err != -EOPNOTSUPP) in ufshcd_device_reset()
725 * ufshcd_wait_for_register - wait for register value to change
726 * @hba: per-adapter interface
733 * Return: -ETIMEDOUT on error, zero on success.
748 * ufshcd_get_intr_mask - Get the interrupt bit mask
755 if (hba->ufs_version <= ufshci_version(2, 0)) in ufshcd_get_intr_mask()
762 * ufshcd_get_ufs_version - Get the UFS version supported by the HBA
771 if (hba->quirks & UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION) in ufshcd_get_ufs_version()
788 * ufshcd_is_device_present - Check if any device connected to
800 * ufshcd_get_tr_ocs - Get the UTRD Overall Command Status
812 return le32_to_cpu(cqe->status) & MASK_OCS; in ufshcd_get_tr_ocs()
814 return lrbp->utr_descriptor_ptr->header.ocs & MASK_OCS; in ufshcd_get_tr_ocs()
818 * ufshcd_utrl_clear() - Clear requests from the controller request list.
824 if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR) in ufshcd_utrl_clear()
843 * ufshcd_utmrl_clear - Clear a bit in UTMRLCLR register
849 if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR) in ufshcd_utmrl_clear()
856 * ufshcd_get_lists_status - Check UCRDY, UTRLRDY and UTMRLRDY
867 * ufshcd_get_uic_cmd_result - Get the UIC command result
872 * Return: 0 on success; non-zero value on error.
881 * ufshcd_get_dme_attr_val - Get the value of attribute returned by UIC command
886 * Return: 0 on success; non-zero value on error.
894 * ufshcd_get_req_rsp - returns the TR response transaction type
902 return ucd_rsp_ptr->header.transaction_code; in ufshcd_get_req_rsp()
906 * ufshcd_is_exception_event - Check if the device raised an exception event
916 return ucd_rsp_ptr->header.device_information & 1; in ufshcd_is_exception_event()
920 * ufshcd_reset_intr_aggr - Reset interrupt aggregation values.
932 * ufshcd_config_intr_aggr - Configure interrupt aggregation values.
947 * ufshcd_disable_intr_aggr - Disables interrupt aggregation.
956 * ufshcd_enable_run_stop_reg - Enable run-stop registers,
957 * When run-stop registers are set to 1, it indicates the
970 * ufshcd_hba_start - Start controller initialization sequence
984 * ufshcd_is_hba_active - Get controller state
996 * ufshcd_pm_qos_init - initialize PM QoS request
1002 if (hba->pm_qos_enabled) in ufshcd_pm_qos_init()
1005 cpu_latency_qos_add_request(&hba->pm_qos_req, PM_QOS_DEFAULT_VALUE); in ufshcd_pm_qos_init()
1007 if (cpu_latency_qos_request_active(&hba->pm_qos_req)) in ufshcd_pm_qos_init()
1008 hba->pm_qos_enabled = true; in ufshcd_pm_qos_init()
1012 * ufshcd_pm_qos_exit - remove request from PM QoS
1017 if (!hba->pm_qos_enabled) in ufshcd_pm_qos_exit()
1020 cpu_latency_qos_remove_request(&hba->pm_qos_req); in ufshcd_pm_qos_exit()
1021 hba->pm_qos_enabled = false; in ufshcd_pm_qos_exit()
1025 * ufshcd_pm_qos_update - update PM QoS request
1031 if (!hba->pm_qos_enabled) in ufshcd_pm_qos_update()
1034 cpu_latency_qos_update_request(&hba->pm_qos_req, on ? 0 : PM_QOS_DEFAULT_VALUE); in ufshcd_pm_qos_update()
1038 * ufshcd_set_clk_freq - set UFS controller clock frequencies
1048 struct list_head *head = &hba->clk_list_head; in ufshcd_set_clk_freq()
1054 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_set_clk_freq()
1055 if (scale_up && clki->max_freq) { in ufshcd_set_clk_freq()
1056 if (clki->curr_freq == clki->max_freq) in ufshcd_set_clk_freq()
1059 ret = clk_set_rate(clki->clk, clki->max_freq); in ufshcd_set_clk_freq()
1061 dev_err(hba->dev, "%s: %s clk set rate(%dHz) failed, %d\n", in ufshcd_set_clk_freq()
1062 __func__, clki->name, in ufshcd_set_clk_freq()
1063 clki->max_freq, ret); in ufshcd_set_clk_freq()
1066 trace_ufshcd_clk_scaling(dev_name(hba->dev), in ufshcd_set_clk_freq()
1067 "scaled up", clki->name, in ufshcd_set_clk_freq()
1068 clki->curr_freq, in ufshcd_set_clk_freq()
1069 clki->max_freq); in ufshcd_set_clk_freq()
1071 clki->curr_freq = clki->max_freq; in ufshcd_set_clk_freq()
1073 } else if (!scale_up && clki->min_freq) { in ufshcd_set_clk_freq()
1074 if (clki->curr_freq == clki->min_freq) in ufshcd_set_clk_freq()
1077 ret = clk_set_rate(clki->clk, clki->min_freq); in ufshcd_set_clk_freq()
1079 dev_err(hba->dev, "%s: %s clk set rate(%dHz) failed, %d\n", in ufshcd_set_clk_freq()
1080 __func__, clki->name, in ufshcd_set_clk_freq()
1081 clki->min_freq, ret); in ufshcd_set_clk_freq()
1084 trace_ufshcd_clk_scaling(dev_name(hba->dev), in ufshcd_set_clk_freq()
1085 "scaled down", clki->name, in ufshcd_set_clk_freq()
1086 clki->curr_freq, in ufshcd_set_clk_freq()
1087 clki->min_freq); in ufshcd_set_clk_freq()
1088 clki->curr_freq = clki->min_freq; in ufshcd_set_clk_freq()
1091 dev_dbg(hba->dev, "%s: clk: %s, rate: %lu\n", __func__, in ufshcd_set_clk_freq()
1092 clki->name, clk_get_rate(clki->clk)); in ufshcd_set_clk_freq()
1104 struct list_head *head = &hba->clk_list_head; in ufshcd_opp_config_clks()
1111 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_opp_config_clks()
1118 ret = clk_set_rate(clki->clk, freq); in ufshcd_opp_config_clks()
1121 __func__, clki->name, freq, ret); in ufshcd_opp_config_clks()
1127 clki->name, hba->clk_scaling.target_freq, freq); in ufshcd_opp_config_clks()
1140 opp = dev_pm_opp_find_freq_floor_indexed(hba->dev, in ufshcd_opp_set_rate()
1145 ret = dev_pm_opp_set_opp(hba->dev, opp); in ufshcd_opp_set_rate()
1152 * ufshcd_scale_clks - scale up or scale down UFS controller clocks
1169 if (hba->use_pm_opp) in ufshcd_scale_clks()
1178 if (hba->use_pm_opp) in ufshcd_scale_clks()
1180 hba->devfreq->previous_freq); in ufshcd_scale_clks()
1189 trace_ufshcd_profile_clk_scaling(dev_name(hba->dev), in ufshcd_scale_clks()
1196 * ufshcd_is_devfreq_scaling_required - check if scaling is required or not
1207 struct list_head *head = &hba->clk_list_head; in ufshcd_is_devfreq_scaling_required()
1212 if (hba->use_pm_opp) in ufshcd_is_devfreq_scaling_required()
1213 return freq != hba->clk_scaling.target_freq; in ufshcd_is_devfreq_scaling_required()
1216 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_is_devfreq_scaling_required()
1217 if (scale_up && clki->max_freq) { in ufshcd_is_devfreq_scaling_required()
1218 if (clki->curr_freq == clki->max_freq) in ufshcd_is_devfreq_scaling_required()
1221 } else if (!scale_up && clki->min_freq) { in ufshcd_is_devfreq_scaling_required()
1222 if (clki->curr_freq == clki->min_freq) in ufshcd_is_devfreq_scaling_required()
1245 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_pending_cmds()
1246 __shost_for_each_device(sdev, hba->host) in ufshcd_pending_cmds()
1247 pending += sbitmap_weight(&sdev->budget_map); in ufshcd_pending_cmds()
1248 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_pending_cmds()
1257 * Return: 0 upon success; -EBUSY upon timeout.
1275 if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) { in ufshcd_wait_for_doorbell_clr()
1276 ret = -EBUSY; in ufshcd_wait_for_doorbell_clr()
1303 dev_err(hba->dev, in ufshcd_wait_for_doorbell_clr()
1306 ret = -EBUSY; in ufshcd_wait_for_doorbell_clr()
1314 * ufshcd_scale_gear - scale up/down UFS gear
1318 * Return: 0 for success; -EBUSY if scaling can't happen at this time;
1319 * non-zero for any other errors.
1327 memcpy(&new_pwr_info, &hba->clk_scaling.saved_pwr_info, in ufshcd_scale_gear()
1330 memcpy(&new_pwr_info, &hba->pwr_info, in ufshcd_scale_gear()
1333 if (hba->pwr_info.gear_tx > hba->clk_scaling.min_gear || in ufshcd_scale_gear()
1334 hba->pwr_info.gear_rx > hba->clk_scaling.min_gear) { in ufshcd_scale_gear()
1336 memcpy(&hba->clk_scaling.saved_pwr_info, in ufshcd_scale_gear()
1337 &hba->pwr_info, in ufshcd_scale_gear()
1341 new_pwr_info.gear_tx = hba->clk_scaling.min_gear; in ufshcd_scale_gear()
1342 new_pwr_info.gear_rx = hba->clk_scaling.min_gear; in ufshcd_scale_gear()
1349 dev_err(hba->dev, "%s: failed err %d, old gear: (tx %d rx %d), new gear: (tx %d rx %d)", in ufshcd_scale_gear()
1351 hba->pwr_info.gear_tx, hba->pwr_info.gear_rx, in ufshcd_scale_gear()
1361 * Return: 0 upon success; -EBUSY upon timeout.
1370 blk_mq_quiesce_tagset(&hba->host->tag_set); in ufshcd_clock_scaling_prepare()
1371 mutex_lock(&hba->wb_mutex); in ufshcd_clock_scaling_prepare()
1372 down_write(&hba->clk_scaling_lock); in ufshcd_clock_scaling_prepare()
1374 if (!hba->clk_scaling.is_allowed || in ufshcd_clock_scaling_prepare()
1376 ret = -EBUSY; in ufshcd_clock_scaling_prepare()
1377 up_write(&hba->clk_scaling_lock); in ufshcd_clock_scaling_prepare()
1378 mutex_unlock(&hba->wb_mutex); in ufshcd_clock_scaling_prepare()
1379 blk_mq_unquiesce_tagset(&hba->host->tag_set); in ufshcd_clock_scaling_prepare()
1392 up_write(&hba->clk_scaling_lock); in ufshcd_clock_scaling_unprepare()
1394 /* Enable Write Booster if we have scaled up else disable it */ in ufshcd_clock_scaling_unprepare()
1398 mutex_unlock(&hba->wb_mutex); in ufshcd_clock_scaling_unprepare()
1400 blk_mq_unquiesce_tagset(&hba->host->tag_set); in ufshcd_clock_scaling_unprepare()
1405 * ufshcd_devfreq_scale - scale up/down UFS clocks and gear
1410 * Return: 0 for success; -EBUSY if scaling can't happen at this time; non-zero
1440 ufshcd_scale_clks(hba, hba->devfreq->previous_freq, in ufshcd_devfreq_scale()
1456 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_clk_scaling_suspend_work()
1458 if (hba->clk_scaling.active_reqs || in ufshcd_clk_scaling_suspend_work()
1459 hba->clk_scaling.is_suspended) in ufshcd_clk_scaling_suspend_work()
1462 hba->clk_scaling.is_suspended = true; in ufshcd_clk_scaling_suspend_work()
1463 hba->clk_scaling.window_start_t = 0; in ufshcd_clk_scaling_suspend_work()
1466 devfreq_suspend_device(hba->devfreq); in ufshcd_clk_scaling_suspend_work()
1474 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_clk_scaling_resume_work()
1476 if (!hba->clk_scaling.is_suspended) in ufshcd_clk_scaling_resume_work()
1478 hba->clk_scaling.is_suspended = false; in ufshcd_clk_scaling_resume_work()
1481 devfreq_resume_device(hba->devfreq); in ufshcd_clk_scaling_resume_work()
1491 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_target()
1495 return -EINVAL; in ufshcd_devfreq_target()
1497 if (hba->use_pm_opp) { in ufshcd_devfreq_target()
1508 clki = list_first_entry(&hba->clk_list_head, struct ufs_clk_info, in ufshcd_devfreq_target()
1510 *freq = (unsigned long) clk_round_rate(clki->clk, *freq); in ufshcd_devfreq_target()
1513 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_devfreq_target()
1519 if (hba->clk_scaling.is_suspended) { in ufshcd_devfreq_target()
1520 dev_warn(hba->dev, "clock scaling is suspended, skip"); in ufshcd_devfreq_target()
1524 if (!hba->clk_scaling.active_reqs) in ufshcd_devfreq_target()
1530 /* Decide based on the target or rounded-off frequency and update */ in ufshcd_devfreq_target()
1531 if (hba->use_pm_opp) in ufshcd_devfreq_target()
1532 scale_up = *freq > hba->clk_scaling.target_freq; in ufshcd_devfreq_target()
1534 scale_up = *freq == clki->max_freq; in ufshcd_devfreq_target()
1536 if (!hba->use_pm_opp && !scale_up) in ufshcd_devfreq_target()
1537 *freq = clki->min_freq; in ufshcd_devfreq_target()
1549 hba->clk_scaling.target_freq = *freq; in ufshcd_devfreq_target()
1551 trace_ufshcd_profile_clk_scaling(dev_name(hba->dev), in ufshcd_devfreq_target()
1557 (!scale_up || hba->clk_scaling.suspend_on_no_request)) in ufshcd_devfreq_target()
1558 queue_work(hba->clk_scaling.workq, in ufshcd_devfreq_target()
1559 &hba->clk_scaling.suspend_work); in ufshcd_devfreq_target()
1568 struct ufs_clk_scaling *scaling = &hba->clk_scaling; in ufshcd_devfreq_get_dev_status()
1572 return -EINVAL; in ufshcd_devfreq_get_dev_status()
1576 guard(spinlock_irqsave)(&hba->clk_scaling.lock); in ufshcd_devfreq_get_dev_status()
1579 if (!scaling->window_start_t) in ufshcd_devfreq_get_dev_status()
1587 if (hba->use_pm_opp) { in ufshcd_devfreq_get_dev_status()
1588 stat->current_frequency = hba->clk_scaling.target_freq; in ufshcd_devfreq_get_dev_status()
1590 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_get_dev_status()
1594 stat->current_frequency = clki->curr_freq; in ufshcd_devfreq_get_dev_status()
1597 if (scaling->is_busy_started) in ufshcd_devfreq_get_dev_status()
1598 scaling->tot_busy_t += ktime_us_delta(curr_t, in ufshcd_devfreq_get_dev_status()
1599 scaling->busy_start_t); in ufshcd_devfreq_get_dev_status()
1600 stat->total_time = ktime_us_delta(curr_t, scaling->window_start_t); in ufshcd_devfreq_get_dev_status()
1601 stat->busy_time = scaling->tot_busy_t; in ufshcd_devfreq_get_dev_status()
1603 scaling->window_start_t = curr_t; in ufshcd_devfreq_get_dev_status()
1604 scaling->tot_busy_t = 0; in ufshcd_devfreq_get_dev_status()
1606 if (scaling->active_reqs) { in ufshcd_devfreq_get_dev_status()
1607 scaling->busy_start_t = curr_t; in ufshcd_devfreq_get_dev_status()
1608 scaling->is_busy_started = true; in ufshcd_devfreq_get_dev_status()
1610 scaling->busy_start_t = 0; in ufshcd_devfreq_get_dev_status()
1611 scaling->is_busy_started = false; in ufshcd_devfreq_get_dev_status()
1619 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_init()
1628 if (!hba->use_pm_opp) { in ufshcd_devfreq_init()
1630 dev_pm_opp_add(hba->dev, clki->min_freq, 0); in ufshcd_devfreq_init()
1631 dev_pm_opp_add(hba->dev, clki->max_freq, 0); in ufshcd_devfreq_init()
1634 ufshcd_vops_config_scaling_param(hba, &hba->vps->devfreq_profile, in ufshcd_devfreq_init()
1635 &hba->vps->ondemand_data); in ufshcd_devfreq_init()
1636 devfreq = devfreq_add_device(hba->dev, in ufshcd_devfreq_init()
1637 &hba->vps->devfreq_profile, in ufshcd_devfreq_init()
1639 &hba->vps->ondemand_data); in ufshcd_devfreq_init()
1642 dev_err(hba->dev, "Unable to register with devfreq %d\n", ret); in ufshcd_devfreq_init()
1644 if (!hba->use_pm_opp) { in ufshcd_devfreq_init()
1645 dev_pm_opp_remove(hba->dev, clki->min_freq); in ufshcd_devfreq_init()
1646 dev_pm_opp_remove(hba->dev, clki->max_freq); in ufshcd_devfreq_init()
1651 hba->devfreq = devfreq; in ufshcd_devfreq_init()
1658 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_remove()
1660 if (!hba->devfreq) in ufshcd_devfreq_remove()
1663 devfreq_remove_device(hba->devfreq); in ufshcd_devfreq_remove()
1664 hba->devfreq = NULL; in ufshcd_devfreq_remove()
1666 if (!hba->use_pm_opp) { in ufshcd_devfreq_remove()
1670 dev_pm_opp_remove(hba->dev, clki->min_freq); in ufshcd_devfreq_remove()
1671 dev_pm_opp_remove(hba->dev, clki->max_freq); in ufshcd_devfreq_remove()
1679 cancel_work_sync(&hba->clk_scaling.suspend_work); in ufshcd_suspend_clkscaling()
1680 cancel_work_sync(&hba->clk_scaling.resume_work); in ufshcd_suspend_clkscaling()
1682 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_suspend_clkscaling()
1684 if (!hba->clk_scaling.is_suspended) { in ufshcd_suspend_clkscaling()
1686 hba->clk_scaling.is_suspended = true; in ufshcd_suspend_clkscaling()
1687 hba->clk_scaling.window_start_t = 0; in ufshcd_suspend_clkscaling()
1692 devfreq_suspend_device(hba->devfreq); in ufshcd_suspend_clkscaling()
1699 scoped_guard(spinlock_irqsave, &hba->clk_scaling.lock) in ufshcd_resume_clkscaling()
1701 if (hba->clk_scaling.is_suspended) { in ufshcd_resume_clkscaling()
1703 hba->clk_scaling.is_suspended = false; in ufshcd_resume_clkscaling()
1708 devfreq_resume_device(hba->devfreq); in ufshcd_resume_clkscaling()
1716 return sysfs_emit(buf, "%d\n", hba->clk_scaling.is_enabled); in ufshcd_clkscale_enable_show()
1727 return -EINVAL; in ufshcd_clkscale_enable_store()
1729 down(&hba->host_sem); in ufshcd_clkscale_enable_store()
1731 err = -EBUSY; in ufshcd_clkscale_enable_store()
1736 if (value == hba->clk_scaling.is_enabled) in ufshcd_clkscale_enable_store()
1742 hba->clk_scaling.is_enabled = value; in ufshcd_clkscale_enable_store()
1750 dev_err(hba->dev, "%s: failed to scale clocks up %d\n", in ufshcd_clkscale_enable_store()
1757 up(&hba->host_sem); in ufshcd_clkscale_enable_store()
1763 hba->clk_scaling.enable_attr.show = ufshcd_clkscale_enable_show; in ufshcd_init_clk_scaling_sysfs()
1764 hba->clk_scaling.enable_attr.store = ufshcd_clkscale_enable_store; in ufshcd_init_clk_scaling_sysfs()
1765 sysfs_attr_init(&hba->clk_scaling.enable_attr.attr); in ufshcd_init_clk_scaling_sysfs()
1766 hba->clk_scaling.enable_attr.attr.name = "clkscale_enable"; in ufshcd_init_clk_scaling_sysfs()
1767 hba->clk_scaling.enable_attr.attr.mode = 0644; in ufshcd_init_clk_scaling_sysfs()
1768 if (device_create_file(hba->dev, &hba->clk_scaling.enable_attr)) in ufshcd_init_clk_scaling_sysfs()
1769 dev_err(hba->dev, "Failed to create sysfs for clkscale_enable\n"); in ufshcd_init_clk_scaling_sysfs()
1774 if (hba->clk_scaling.enable_attr.attr.name) in ufshcd_remove_clk_scaling_sysfs()
1775 device_remove_file(hba->dev, &hba->clk_scaling.enable_attr); in ufshcd_remove_clk_scaling_sysfs()
1783 if (!hba->clk_scaling.min_gear) in ufshcd_init_clk_scaling()
1784 hba->clk_scaling.min_gear = UFS_HS_G1; in ufshcd_init_clk_scaling()
1786 INIT_WORK(&hba->clk_scaling.suspend_work, in ufshcd_init_clk_scaling()
1788 INIT_WORK(&hba->clk_scaling.resume_work, in ufshcd_init_clk_scaling()
1791 spin_lock_init(&hba->clk_scaling.lock); in ufshcd_init_clk_scaling()
1793 hba->clk_scaling.workq = alloc_ordered_workqueue( in ufshcd_init_clk_scaling()
1794 "ufs_clkscaling_%d", WQ_MEM_RECLAIM, hba->host->host_no); in ufshcd_init_clk_scaling()
1796 hba->clk_scaling.is_initialized = true; in ufshcd_init_clk_scaling()
1801 if (!hba->clk_scaling.is_initialized) in ufshcd_exit_clk_scaling()
1805 destroy_workqueue(hba->clk_scaling.workq); in ufshcd_exit_clk_scaling()
1807 hba->clk_scaling.is_initialized = false; in ufshcd_exit_clk_scaling()
1816 cancel_delayed_work_sync(&hba->clk_gating.gate_work); in ufshcd_ungate_work()
1818 scoped_guard(spinlock_irqsave, &hba->clk_gating.lock) { in ufshcd_ungate_work()
1819 if (hba->clk_gating.state == CLKS_ON) in ufshcd_ungate_work()
1831 hba->clk_gating.is_suspended = true; in ufshcd_ungate_work()
1835 dev_err(hba->dev, "%s: hibern8 exit failed %d\n", in ufshcd_ungate_work()
1840 hba->clk_gating.is_suspended = false; in ufshcd_ungate_work()
1845 * ufshcd_hold - Enable clocks that were gated earlier due to ufshcd_release.
1855 !hba->clk_gating.is_initialized) in ufshcd_hold()
1857 spin_lock_irqsave(&hba->clk_gating.lock, flags); in ufshcd_hold()
1858 hba->clk_gating.active_reqs++; in ufshcd_hold()
1861 switch (hba->clk_gating.state) { in ufshcd_hold()
1873 spin_unlock_irqrestore(&hba->clk_gating.lock, flags); in ufshcd_hold()
1874 flush_result = flush_work(&hba->clk_gating.ungate_work); in ufshcd_hold()
1875 if (hba->clk_gating.is_suspended && !flush_result) in ufshcd_hold()
1877 spin_lock_irqsave(&hba->clk_gating.lock, flags); in ufshcd_hold()
1882 if (cancel_delayed_work(&hba->clk_gating.gate_work)) { in ufshcd_hold()
1883 hba->clk_gating.state = CLKS_ON; in ufshcd_hold()
1884 trace_ufshcd_clk_gating(dev_name(hba->dev), in ufshcd_hold()
1885 hba->clk_gating.state); in ufshcd_hold()
1895 hba->clk_gating.state = REQ_CLKS_ON; in ufshcd_hold()
1896 trace_ufshcd_clk_gating(dev_name(hba->dev), in ufshcd_hold()
1897 hba->clk_gating.state); in ufshcd_hold()
1898 queue_work(hba->clk_gating.clk_gating_workq, in ufshcd_hold()
1899 &hba->clk_gating.ungate_work); in ufshcd_hold()
1906 spin_unlock_irqrestore(&hba->clk_gating.lock, flags); in ufshcd_hold()
1907 flush_work(&hba->clk_gating.ungate_work); in ufshcd_hold()
1909 spin_lock_irqsave(&hba->clk_gating.lock, flags); in ufshcd_hold()
1912 dev_err(hba->dev, "%s: clk gating is in invalid state %d\n", in ufshcd_hold()
1913 __func__, hba->clk_gating.state); in ufshcd_hold()
1916 spin_unlock_irqrestore(&hba->clk_gating.lock, flags); in ufshcd_hold()
1926 scoped_guard(spinlock_irqsave, &hba->clk_gating.lock) { in ufshcd_gate_work()
1933 if (hba->clk_gating.is_suspended || in ufshcd_gate_work()
1934 hba->clk_gating.state != REQ_CLKS_OFF) { in ufshcd_gate_work()
1935 hba->clk_gating.state = CLKS_ON; in ufshcd_gate_work()
1936 trace_ufshcd_clk_gating(dev_name(hba->dev), in ufshcd_gate_work()
1937 hba->clk_gating.state); in ufshcd_gate_work()
1941 if (hba->clk_gating.active_reqs) in ufshcd_gate_work()
1945 scoped_guard(spinlock_irqsave, hba->host->host_lock) { in ufshcd_gate_work()
1947 hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) in ufshcd_gate_work()
1955 hba->clk_gating.state = CLKS_ON; in ufshcd_gate_work()
1956 dev_err(hba->dev, "%s: hibern8 enter failed %d\n", in ufshcd_gate_work()
1958 trace_ufshcd_clk_gating(dev_name(hba->dev), in ufshcd_gate_work()
1959 hba->clk_gating.state); in ufshcd_gate_work()
1980 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_gate_work()
1981 if (hba->clk_gating.state == REQ_CLKS_OFF) { in ufshcd_gate_work()
1982 hba->clk_gating.state = CLKS_OFF; in ufshcd_gate_work()
1983 trace_ufshcd_clk_gating(dev_name(hba->dev), in ufshcd_gate_work()
1984 hba->clk_gating.state); in ufshcd_gate_work()
1990 lockdep_assert_held(&hba->clk_gating.lock); in __ufshcd_release()
1995 hba->clk_gating.active_reqs--; in __ufshcd_release()
1997 if (hba->clk_gating.active_reqs || hba->clk_gating.is_suspended || in __ufshcd_release()
1998 !hba->clk_gating.is_initialized || in __ufshcd_release()
1999 hba->clk_gating.state == CLKS_OFF) in __ufshcd_release()
2002 scoped_guard(spinlock_irqsave, hba->host->host_lock) { in __ufshcd_release()
2004 hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) in __ufshcd_release()
2008 hba->clk_gating.state = REQ_CLKS_OFF; in __ufshcd_release()
2009 trace_ufshcd_clk_gating(dev_name(hba->dev), hba->clk_gating.state); in __ufshcd_release()
2010 queue_delayed_work(hba->clk_gating.clk_gating_workq, in __ufshcd_release()
2011 &hba->clk_gating.gate_work, in __ufshcd_release()
2012 msecs_to_jiffies(hba->clk_gating.delay_ms)); in __ufshcd_release()
2017 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_release()
2027 return sysfs_emit(buf, "%lu\n", hba->clk_gating.delay_ms); in ufshcd_clkgate_delay_show()
2034 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_clkgate_delay_set()
2035 hba->clk_gating.delay_ms = value; in ufshcd_clkgate_delay_set()
2045 return -EINVAL; in ufshcd_clkgate_delay_store()
2056 return sysfs_emit(buf, "%d\n", hba->clk_gating.is_enabled); in ufshcd_clkgate_enable_show()
2066 return -EINVAL; in ufshcd_clkgate_enable_store()
2070 guard(spinlock_irqsave)(&hba->clk_gating.lock); in ufshcd_clkgate_enable_store()
2072 if (value == hba->clk_gating.is_enabled) in ufshcd_clkgate_enable_store()
2078 hba->clk_gating.active_reqs++; in ufshcd_clkgate_enable_store()
2080 hba->clk_gating.is_enabled = value; in ufshcd_clkgate_enable_store()
2087 hba->clk_gating.delay_attr.show = ufshcd_clkgate_delay_show; in ufshcd_init_clk_gating_sysfs()
2088 hba->clk_gating.delay_attr.store = ufshcd_clkgate_delay_store; in ufshcd_init_clk_gating_sysfs()
2089 sysfs_attr_init(&hba->clk_gating.delay_attr.attr); in ufshcd_init_clk_gating_sysfs()
2090 hba->clk_gating.delay_attr.attr.name = "clkgate_delay_ms"; in ufshcd_init_clk_gating_sysfs()
2091 hba->clk_gating.delay_attr.attr.mode = 0644; in ufshcd_init_clk_gating_sysfs()
2092 if (device_create_file(hba->dev, &hba->clk_gating.delay_attr)) in ufshcd_init_clk_gating_sysfs()
2093 dev_err(hba->dev, "Failed to create sysfs for clkgate_delay\n"); in ufshcd_init_clk_gating_sysfs()
2095 hba->clk_gating.enable_attr.show = ufshcd_clkgate_enable_show; in ufshcd_init_clk_gating_sysfs()
2096 hba->clk_gating.enable_attr.store = ufshcd_clkgate_enable_store; in ufshcd_init_clk_gating_sysfs()
2097 sysfs_attr_init(&hba->clk_gating.enable_attr.attr); in ufshcd_init_clk_gating_sysfs()
2098 hba->clk_gating.enable_attr.attr.name = "clkgate_enable"; in ufshcd_init_clk_gating_sysfs()
2099 hba->clk_gating.enable_attr.attr.mode = 0644; in ufshcd_init_clk_gating_sysfs()
2100 if (device_create_file(hba->dev, &hba->clk_gating.enable_attr)) in ufshcd_init_clk_gating_sysfs()
2101 dev_err(hba->dev, "Failed to create sysfs for clkgate_enable\n"); in ufshcd_init_clk_gating_sysfs()
2106 if (hba->clk_gating.delay_attr.attr.name) in ufshcd_remove_clk_gating_sysfs()
2107 device_remove_file(hba->dev, &hba->clk_gating.delay_attr); in ufshcd_remove_clk_gating_sysfs()
2108 if (hba->clk_gating.enable_attr.attr.name) in ufshcd_remove_clk_gating_sysfs()
2109 device_remove_file(hba->dev, &hba->clk_gating.enable_attr); in ufshcd_remove_clk_gating_sysfs()
2117 hba->clk_gating.state = CLKS_ON; in ufshcd_init_clk_gating()
2119 hba->clk_gating.delay_ms = 150; in ufshcd_init_clk_gating()
2120 INIT_DELAYED_WORK(&hba->clk_gating.gate_work, ufshcd_gate_work); in ufshcd_init_clk_gating()
2121 INIT_WORK(&hba->clk_gating.ungate_work, ufshcd_ungate_work); in ufshcd_init_clk_gating()
2123 hba->clk_gating.clk_gating_workq = alloc_ordered_workqueue( in ufshcd_init_clk_gating()
2125 hba->host->host_no); in ufshcd_init_clk_gating()
2129 hba->clk_gating.is_enabled = true; in ufshcd_init_clk_gating()
2130 hba->clk_gating.is_initialized = true; in ufshcd_init_clk_gating()
2135 if (!hba->clk_gating.is_initialized) in ufshcd_exit_clk_gating()
2142 hba->clk_gating.is_initialized = false; in ufshcd_exit_clk_gating()
2145 destroy_workqueue(hba->clk_gating.clk_gating_workq); in ufshcd_exit_clk_gating()
2156 guard(spinlock_irqsave)(&hba->clk_scaling.lock); in ufshcd_clk_scaling_start_busy()
2158 if (!hba->clk_scaling.active_reqs++) in ufshcd_clk_scaling_start_busy()
2161 if (!hba->clk_scaling.is_enabled || hba->pm_op_in_progress) in ufshcd_clk_scaling_start_busy()
2165 queue_work(hba->clk_scaling.workq, in ufshcd_clk_scaling_start_busy()
2166 &hba->clk_scaling.resume_work); in ufshcd_clk_scaling_start_busy()
2168 if (!hba->clk_scaling.window_start_t) { in ufshcd_clk_scaling_start_busy()
2169 hba->clk_scaling.window_start_t = curr_t; in ufshcd_clk_scaling_start_busy()
2170 hba->clk_scaling.tot_busy_t = 0; in ufshcd_clk_scaling_start_busy()
2171 hba->clk_scaling.is_busy_started = false; in ufshcd_clk_scaling_start_busy()
2174 if (!hba->clk_scaling.is_busy_started) { in ufshcd_clk_scaling_start_busy()
2175 hba->clk_scaling.busy_start_t = curr_t; in ufshcd_clk_scaling_start_busy()
2176 hba->clk_scaling.is_busy_started = true; in ufshcd_clk_scaling_start_busy()
2182 struct ufs_clk_scaling *scaling = &hba->clk_scaling; in ufshcd_clk_scaling_update_busy()
2187 guard(spinlock_irqsave)(&hba->clk_scaling.lock); in ufshcd_clk_scaling_update_busy()
2189 hba->clk_scaling.active_reqs--; in ufshcd_clk_scaling_update_busy()
2190 if (!scaling->active_reqs && scaling->is_busy_started) { in ufshcd_clk_scaling_update_busy()
2191 scaling->tot_busy_t += ktime_to_us(ktime_sub(ktime_get(), in ufshcd_clk_scaling_update_busy()
2192 scaling->busy_start_t)); in ufshcd_clk_scaling_update_busy()
2193 scaling->busy_start_t = 0; in ufshcd_clk_scaling_update_busy()
2194 scaling->is_busy_started = false; in ufshcd_clk_scaling_update_busy()
2205 return -EINVAL; in ufshcd_monitor_opcode2dir()
2211 const struct ufs_hba_monitor *m = &hba->monitor; in ufshcd_should_inform_monitor()
2213 return (m->enabled && lrbp && lrbp->cmd && in ufshcd_should_inform_monitor()
2214 (!m->chunk_size || m->chunk_size == lrbp->cmd->sdb.length) && in ufshcd_should_inform_monitor()
2215 ktime_before(hba->monitor.enabled_ts, lrbp->issue_time_stamp)); in ufshcd_should_inform_monitor()
2221 int dir = ufshcd_monitor_opcode2dir(*lrbp->cmd->cmnd); in ufshcd_start_monitor()
2224 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_start_monitor()
2225 if (dir >= 0 && hba->monitor.nr_queued[dir]++ == 0) in ufshcd_start_monitor()
2226 hba->monitor.busy_start_ts[dir] = ktime_get(); in ufshcd_start_monitor()
2227 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_start_monitor()
2232 int dir = ufshcd_monitor_opcode2dir(*lrbp->cmd->cmnd); in ufshcd_update_monitor()
2235 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_update_monitor()
2236 if (dir >= 0 && hba->monitor.nr_queued[dir] > 0) { in ufshcd_update_monitor()
2237 const struct request *req = scsi_cmd_to_rq(lrbp->cmd); in ufshcd_update_monitor()
2238 struct ufs_hba_monitor *m = &hba->monitor; in ufshcd_update_monitor()
2241 now = lrbp->compl_time_stamp; in ufshcd_update_monitor()
2242 inc = ktime_sub(now, m->busy_start_ts[dir]); in ufshcd_update_monitor()
2243 m->total_busy[dir] = ktime_add(m->total_busy[dir], inc); in ufshcd_update_monitor()
2244 m->nr_sec_rw[dir] += blk_rq_sectors(req); in ufshcd_update_monitor()
2247 m->nr_req[dir]++; in ufshcd_update_monitor()
2248 lat = ktime_sub(now, lrbp->issue_time_stamp); in ufshcd_update_monitor()
2249 m->lat_sum[dir] += lat; in ufshcd_update_monitor()
2250 if (m->lat_max[dir] < lat || !m->lat_max[dir]) in ufshcd_update_monitor()
2251 m->lat_max[dir] = lat; in ufshcd_update_monitor()
2252 if (m->lat_min[dir] > lat || !m->lat_min[dir]) in ufshcd_update_monitor()
2253 m->lat_min[dir] = lat; in ufshcd_update_monitor()
2255 m->nr_queued[dir]--; in ufshcd_update_monitor()
2257 m->busy_start_ts[dir] = now; in ufshcd_update_monitor()
2259 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_update_monitor()
2263 * ufshcd_send_command - Send SCSI or device management commands
2272 struct ufshcd_lrb *lrbp = &hba->lrb[task_tag]; in ufshcd_send_command()
2275 lrbp->issue_time_stamp = ktime_get(); in ufshcd_send_command()
2276 lrbp->issue_time_stamp_local_clock = local_clock(); in ufshcd_send_command()
2277 lrbp->compl_time_stamp = ktime_set(0, 0); in ufshcd_send_command()
2278 lrbp->compl_time_stamp_local_clock = 0; in ufshcd_send_command()
2280 if (lrbp->cmd) in ufshcd_send_command()
2285 if (hba->mcq_enabled) { in ufshcd_send_command()
2287 struct utp_transfer_req_desc *src = lrbp->utr_descriptor_ptr; in ufshcd_send_command()
2290 spin_lock(&hwq->sq_lock); in ufshcd_send_command()
2291 dest = hwq->sqe_base_addr + hwq->sq_tail_slot; in ufshcd_send_command()
2294 spin_unlock(&hwq->sq_lock); in ufshcd_send_command()
2296 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_send_command()
2297 if (hba->vops && hba->vops->setup_xfer_req) in ufshcd_send_command()
2298 hba->vops->setup_xfer_req(hba, lrbp->task_tag, in ufshcd_send_command()
2299 !!lrbp->cmd); in ufshcd_send_command()
2300 __set_bit(lrbp->task_tag, &hba->outstanding_reqs); in ufshcd_send_command()
2301 ufshcd_writel(hba, 1 << lrbp->task_tag, in ufshcd_send_command()
2303 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_send_command()
2308 * ufshcd_copy_sense_data - Copy sense data in case of check condition
2313 u8 *const sense_buffer = lrbp->cmd->sense_buffer; in ufshcd_copy_sense_data()
2317 resp_len = be16_to_cpu(lrbp->ucd_rsp_ptr->header.data_segment_length); in ufshcd_copy_sense_data()
2321 len = be16_to_cpu(lrbp->ucd_rsp_ptr->sr.sense_data_len); in ufshcd_copy_sense_data()
2324 memcpy(sense_buffer, lrbp->ucd_rsp_ptr->sr.sense_data, in ufshcd_copy_sense_data()
2330 * ufshcd_copy_query_response() - Copy the Query Response and the data
2340 struct ufs_query_res *query_res = &hba->dev_cmd.query.response; in ufshcd_copy_query_response()
2342 memcpy(&query_res->upiu_res, &lrbp->ucd_rsp_ptr->qr, QUERY_OSF_SIZE); in ufshcd_copy_query_response()
2345 if (hba->dev_cmd.query.descriptor && in ufshcd_copy_query_response()
2346 lrbp->ucd_rsp_ptr->qr.opcode == UPIU_QUERY_OPCODE_READ_DESC) { in ufshcd_copy_query_response()
2347 u8 *descp = (u8 *)lrbp->ucd_rsp_ptr + in ufshcd_copy_query_response()
2353 resp_len = be16_to_cpu(lrbp->ucd_rsp_ptr->header in ufshcd_copy_query_response()
2356 hba->dev_cmd.query.request.upiu_req.length); in ufshcd_copy_query_response()
2358 memcpy(hba->dev_cmd.query.descriptor, descp, resp_len); in ufshcd_copy_query_response()
2360 dev_warn(hba->dev, in ufshcd_copy_query_response()
2363 return -EINVAL; in ufshcd_copy_query_response()
2371 * ufshcd_hba_capabilities - Read controller capabilities
2380 hba->capabilities = ufshcd_readl(hba, REG_CONTROLLER_CAPABILITIES); in ufshcd_hba_capabilities()
2383 hba->nutrs = (hba->capabilities & MASK_TRANSFER_REQUESTS_SLOTS_SDB) + 1; in ufshcd_hba_capabilities()
2384 hba->nutmrs = in ufshcd_hba_capabilities()
2385 ((hba->capabilities & MASK_TASK_MANAGEMENT_REQUEST_SLOTS) >> 16) + 1; in ufshcd_hba_capabilities()
2386 hba->reserved_slot = hba->nutrs - 1; in ufshcd_hba_capabilities()
2388 hba->nortt = FIELD_GET(MASK_NUMBER_OUTSTANDING_RTT, hba->capabilities) + 1; in ufshcd_hba_capabilities()
2393 dev_err(hba->dev, "crypto setup failed\n"); in ufshcd_hba_capabilities()
2402 hba->mcq_sup = FIELD_GET(MASK_MCQ_SUPPORT, hba->capabilities); in ufshcd_hba_capabilities()
2407 if (!(hba->quirks & UFSHCD_QUIRK_BROKEN_LSDBS_CAP)) in ufshcd_hba_capabilities()
2408 hba->lsdb_sup = !FIELD_GET(MASK_LSDB_SUPPORT, hba->capabilities); in ufshcd_hba_capabilities()
2410 hba->lsdb_sup = true; in ufshcd_hba_capabilities()
2412 hba->mcq_capabilities = ufshcd_readl(hba, REG_MCQCAP); in ufshcd_hba_capabilities()
2418 * ufshcd_ready_for_uic_cmd - Check if controller is ready
2434 * ufshcd_get_upmcrs - Get the power mode change request status
2447 * ufshcd_dispatch_uic_cmd - Dispatch an UIC command to the Unipro layer
2454 lockdep_assert_held(&hba->uic_cmd_mutex); in ufshcd_dispatch_uic_cmd()
2456 WARN_ON(hba->active_uic_cmd); in ufshcd_dispatch_uic_cmd()
2458 hba->active_uic_cmd = uic_cmd; in ufshcd_dispatch_uic_cmd()
2461 ufshcd_writel(hba, uic_cmd->argument1, REG_UIC_COMMAND_ARG_1); in ufshcd_dispatch_uic_cmd()
2462 ufshcd_writel(hba, uic_cmd->argument2, REG_UIC_COMMAND_ARG_2); in ufshcd_dispatch_uic_cmd()
2463 ufshcd_writel(hba, uic_cmd->argument3, REG_UIC_COMMAND_ARG_3); in ufshcd_dispatch_uic_cmd()
2468 ufshcd_writel(hba, uic_cmd->command & COMMAND_OPCODE_MASK, in ufshcd_dispatch_uic_cmd()
2473 * ufshcd_wait_for_uic_cmd - Wait for completion of an UIC command
2485 lockdep_assert_held(&hba->uic_cmd_mutex); in ufshcd_wait_for_uic_cmd()
2487 if (wait_for_completion_timeout(&uic_cmd->done, in ufshcd_wait_for_uic_cmd()
2489 ret = uic_cmd->argument2 & MASK_UIC_COMMAND_RESULT; in ufshcd_wait_for_uic_cmd()
2491 ret = -ETIMEDOUT; in ufshcd_wait_for_uic_cmd()
2492 dev_err(hba->dev, in ufshcd_wait_for_uic_cmd()
2494 uic_cmd->command, uic_cmd->argument3); in ufshcd_wait_for_uic_cmd()
2496 if (!uic_cmd->cmd_active) { in ufshcd_wait_for_uic_cmd()
2497 dev_err(hba->dev, "%s: UIC cmd has been completed, return the result\n", in ufshcd_wait_for_uic_cmd()
2499 ret = uic_cmd->argument2 & MASK_UIC_COMMAND_RESULT; in ufshcd_wait_for_uic_cmd()
2503 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_wait_for_uic_cmd()
2504 hba->active_uic_cmd = NULL; in ufshcd_wait_for_uic_cmd()
2505 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_wait_for_uic_cmd()
2511 * __ufshcd_send_uic_cmd - Send UIC commands and retrieve the result
2520 lockdep_assert_held(&hba->uic_cmd_mutex); in __ufshcd_send_uic_cmd()
2523 dev_err(hba->dev, in __ufshcd_send_uic_cmd()
2525 return -EIO; in __ufshcd_send_uic_cmd()
2528 init_completion(&uic_cmd->done); in __ufshcd_send_uic_cmd()
2530 uic_cmd->cmd_active = 1; in __ufshcd_send_uic_cmd()
2537 * ufshcd_send_uic_cmd - Send UIC commands and retrieve the result
2547 if (hba->quirks & UFSHCD_QUIRK_BROKEN_UIC_CMD) in ufshcd_send_uic_cmd()
2551 mutex_lock(&hba->uic_cmd_mutex); in ufshcd_send_uic_cmd()
2558 mutex_unlock(&hba->uic_cmd_mutex); in ufshcd_send_uic_cmd()
2565 * ufshcd_sgl_to_prdt - SG list to PRTD (Physical Region Description Table, 4DW format)
2566 * @hba: per-adapter instance
2580 if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) in ufshcd_sgl_to_prdt()
2581 lrbp->utr_descriptor_ptr->prd_table_length = in ufshcd_sgl_to_prdt()
2584 lrbp->utr_descriptor_ptr->prd_table_length = cpu_to_le16(sg_entries); in ufshcd_sgl_to_prdt()
2586 prd = lrbp->ucd_prdt_ptr; in ufshcd_sgl_to_prdt()
2600 prd->size = cpu_to_le32(len - 1); in ufshcd_sgl_to_prdt()
2601 prd->addr = cpu_to_le64(sg->dma_address); in ufshcd_sgl_to_prdt()
2602 prd->reserved = 0; in ufshcd_sgl_to_prdt()
2606 lrbp->utr_descriptor_ptr->prd_table_length = 0; in ufshcd_sgl_to_prdt()
2611 * ufshcd_map_sg - Map scatter-gather list to prdt
2615 * Return: 0 in case of success, non-zero value in case of failure.
2619 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_map_sg()
2631 * ufshcd_enable_intr - enable interrupts
2644 * ufshcd_disable_intr - disable interrupts
2657 * ufshcd_prepare_req_desc_hdr - Fill UTP Transfer request descriptor header according to request
2670 struct utp_transfer_req_desc *req_desc = lrbp->utr_descriptor_ptr; in ufshcd_prepare_req_desc_hdr()
2671 struct request_desc_header *h = &req_desc->header; in ufshcd_prepare_req_desc_hdr()
2674 lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; in ufshcd_prepare_req_desc_hdr()
2689 h->command_type = lrbp->command_type; in ufshcd_prepare_req_desc_hdr()
2690 h->data_direction = data_direction; in ufshcd_prepare_req_desc_hdr()
2691 h->ehs_length = ehs_length; in ufshcd_prepare_req_desc_hdr()
2693 if (lrbp->intr_cmd) in ufshcd_prepare_req_desc_hdr()
2694 h->interrupt = 1; in ufshcd_prepare_req_desc_hdr()
2704 h->ocs = OCS_INVALID_COMMAND_STATUS; in ufshcd_prepare_req_desc_hdr()
2706 req_desc->prd_table_length = 0; in ufshcd_prepare_req_desc_hdr()
2710 * ufshcd_prepare_utp_scsi_cmd_upiu() - fills the utp_transfer_req_desc,
2718 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_prepare_utp_scsi_cmd_upiu()
2719 struct utp_upiu_req *ucd_req_ptr = lrbp->ucd_req_ptr; in ufshcd_prepare_utp_scsi_cmd_upiu()
2722 ucd_req_ptr->header = (struct utp_upiu_header){ in ufshcd_prepare_utp_scsi_cmd_upiu()
2725 .lun = lrbp->lun, in ufshcd_prepare_utp_scsi_cmd_upiu()
2726 .task_tag = lrbp->task_tag, in ufshcd_prepare_utp_scsi_cmd_upiu()
2730 WARN_ON_ONCE(ucd_req_ptr->header.task_tag != lrbp->task_tag); in ufshcd_prepare_utp_scsi_cmd_upiu()
2732 ucd_req_ptr->sc.exp_data_transfer_len = cpu_to_be32(cmd->sdb.length); in ufshcd_prepare_utp_scsi_cmd_upiu()
2734 cdb_len = min_t(unsigned short, cmd->cmd_len, UFS_CDB_SIZE); in ufshcd_prepare_utp_scsi_cmd_upiu()
2735 memcpy(ucd_req_ptr->sc.cdb, cmd->cmnd, cdb_len); in ufshcd_prepare_utp_scsi_cmd_upiu()
2737 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_prepare_utp_scsi_cmd_upiu()
2741 * ufshcd_prepare_utp_query_req_upiu() - fill the utp_transfer_req_desc for query request
2749 struct utp_upiu_req *ucd_req_ptr = lrbp->ucd_req_ptr; in ufshcd_prepare_utp_query_req_upiu()
2750 struct ufs_query *query = &hba->dev_cmd.query; in ufshcd_prepare_utp_query_req_upiu()
2751 u16 len = be16_to_cpu(query->request.upiu_req.length); in ufshcd_prepare_utp_query_req_upiu()
2754 ucd_req_ptr->header = (struct utp_upiu_header){ in ufshcd_prepare_utp_query_req_upiu()
2757 .lun = lrbp->lun, in ufshcd_prepare_utp_query_req_upiu()
2758 .task_tag = lrbp->task_tag, in ufshcd_prepare_utp_query_req_upiu()
2759 .query_function = query->request.query_func, in ufshcd_prepare_utp_query_req_upiu()
2762 query->request.upiu_req.opcode == in ufshcd_prepare_utp_query_req_upiu()
2769 memcpy(&ucd_req_ptr->qr, &query->request.upiu_req, in ufshcd_prepare_utp_query_req_upiu()
2773 if (query->request.upiu_req.opcode == UPIU_QUERY_OPCODE_WRITE_DESC) in ufshcd_prepare_utp_query_req_upiu()
2774 memcpy(ucd_req_ptr + 1, query->descriptor, len); in ufshcd_prepare_utp_query_req_upiu()
2776 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_prepare_utp_query_req_upiu()
2781 struct utp_upiu_req *ucd_req_ptr = lrbp->ucd_req_ptr; in ufshcd_prepare_utp_nop_upiu()
2785 ucd_req_ptr->header = (struct utp_upiu_header){ in ufshcd_prepare_utp_nop_upiu()
2787 .task_tag = lrbp->task_tag, in ufshcd_prepare_utp_nop_upiu()
2790 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_prepare_utp_nop_upiu()
2794 * ufshcd_compose_devman_upiu - UFS Protocol Information Unit(UPIU)
2809 if (hba->dev_cmd.type == DEV_CMD_TYPE_QUERY) in ufshcd_compose_devman_upiu()
2811 else if (hba->dev_cmd.type == DEV_CMD_TYPE_NOP) in ufshcd_compose_devman_upiu()
2814 ret = -EINVAL; in ufshcd_compose_devman_upiu()
2820 * ufshcd_comp_scsi_upiu - UFS Protocol Information Unit(UPIU)
2827 struct request *rq = scsi_cmd_to_rq(lrbp->cmd); in ufshcd_comp_scsi_upiu()
2831 ufshcd_prepare_req_desc_hdr(hba, lrbp, &upiu_flags, lrbp->cmd->sc_data_direction, 0); in ufshcd_comp_scsi_upiu()
2839 memset(lrbp->ucd_req_ptr, 0, sizeof(*lrbp->ucd_req_ptr)); in __ufshcd_setup_cmd()
2841 lrbp->cmd = cmd; in __ufshcd_setup_cmd()
2842 lrbp->task_tag = tag; in __ufshcd_setup_cmd()
2843 lrbp->lun = lun; in __ufshcd_setup_cmd()
2851 lrbp->intr_cmd = !ufshcd_is_intr_aggr_allowed(hba); in ufshcd_setup_scsi_cmd()
2852 lrbp->req_abort_skip = false; in ufshcd_setup_scsi_cmd()
2858 * ufshcd_upiu_wlun_to_scsi_wlun - maps UPIU W-LUN id to SCSI W-LUN ID
2859 * @upiu_wlun_id: UPIU W-LUN id
2861 * Return: SCSI W-LUN id.
2870 return sdev->lun == in is_device_wlun()
2884 hba->nr_queues[HCTX_TYPE_DEFAULT] = 1; in ufshcd_map_queues()
2885 hba->nr_queues[HCTX_TYPE_READ] = 0; in ufshcd_map_queues()
2886 hba->nr_queues[HCTX_TYPE_POLL] = 1; in ufshcd_map_queues()
2887 hba->nr_hw_queues = 1; in ufshcd_map_queues()
2890 for (i = 0; i < shost->nr_maps; i++) { in ufshcd_map_queues()
2891 struct blk_mq_queue_map *map = &shost->tag_set.map[i]; in ufshcd_map_queues()
2893 map->nr_queues = hba->nr_queues[i]; in ufshcd_map_queues()
2894 if (!map->nr_queues) in ufshcd_map_queues()
2896 map->queue_offset = queue_offset; in ufshcd_map_queues()
2898 map->queue_offset = 0; in ufshcd_map_queues()
2901 queue_offset += map->nr_queues; in ufshcd_map_queues()
2907 struct utp_transfer_cmd_desc *cmd_descp = (void *)hba->ucdl_base_addr + in ufshcd_init_lrb()
2909 struct utp_transfer_req_desc *utrdlp = hba->utrdl_base_addr; in ufshcd_init_lrb()
2910 dma_addr_t cmd_desc_element_addr = hba->ucdl_dma_addr + in ufshcd_init_lrb()
2915 lrb->utr_descriptor_ptr = utrdlp + i; in ufshcd_init_lrb()
2916 lrb->utrd_dma_addr = hba->utrdl_dma_addr + in ufshcd_init_lrb()
2918 lrb->ucd_req_ptr = (struct utp_upiu_req *)cmd_descp->command_upiu; in ufshcd_init_lrb()
2919 lrb->ucd_req_dma_addr = cmd_desc_element_addr; in ufshcd_init_lrb()
2920 lrb->ucd_rsp_ptr = (struct utp_upiu_rsp *)cmd_descp->response_upiu; in ufshcd_init_lrb()
2921 lrb->ucd_rsp_dma_addr = cmd_desc_element_addr + response_offset; in ufshcd_init_lrb()
2922 lrb->ucd_prdt_ptr = (struct ufshcd_sg_entry *)cmd_descp->prd_table; in ufshcd_init_lrb()
2923 lrb->ucd_prdt_dma_addr = cmd_desc_element_addr + prdt_offset; in ufshcd_init_lrb()
2927 * ufshcd_queuecommand - main entry point for SCSI requests
2931 * Return: 0 for success, non-zero in case of failure.
2936 int tag = scsi_cmd_to_rq(cmd)->tag; in ufshcd_queuecommand()
2941 switch (hba->ufshcd_state) { in ufshcd_queuecommand()
2946 * SCSI error handler can call ->queuecommand() while UFS error in ufshcd_queuecommand()
2968 if (hba->pm_op_in_progress) { in ufshcd_queuecommand()
2969 hba->force_reset = true; in ufshcd_queuecommand()
2984 hba->req_abort_count = 0; in ufshcd_queuecommand()
2988 lrbp = &hba->lrb[tag]; in ufshcd_queuecommand()
2990 ufshcd_setup_scsi_cmd(hba, lrbp, cmd, ufshcd_scsi_to_upiu_lun(cmd->device->lun), tag); in ufshcd_queuecommand()
2998 if (hba->mcq_enabled) in ufshcd_queuecommand()
3007 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_queuecommand()
3009 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_queuecommand()
3019 lrbp->intr_cmd = true; /* No interrupt aggregation */ in ufshcd_setup_dev_cmd()
3020 hba->dev_cmd.type = cmd_type; in ufshcd_setup_dev_cmd()
3053 if (hba->mcq_enabled) { in ufshcd_clear_cmd()
3060 dev_err(hba->dev, "%s: failed tag=%d. err=%d\n", in ufshcd_clear_cmd()
3073 * wait for h/w to clear corresponding bit in door-bell. in ufshcd_clear_cmd()
3081 * ufshcd_dev_cmd_completion() - handles device management command responses
3093 hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); in ufshcd_dev_cmd_completion()
3094 resp = ufshcd_get_req_rsp(lrbp->ucd_rsp_ptr); in ufshcd_dev_cmd_completion()
3098 if (hba->dev_cmd.type != DEV_CMD_TYPE_NOP) { in ufshcd_dev_cmd_completion()
3099 err = -EINVAL; in ufshcd_dev_cmd_completion()
3100 dev_err(hba->dev, "%s: unexpected response %x\n", in ufshcd_dev_cmd_completion()
3105 u8 response = lrbp->ucd_rsp_ptr->header.response; in ufshcd_dev_cmd_completion()
3110 err = -EINVAL; in ufshcd_dev_cmd_completion()
3111 dev_err(hba->dev, "%s: unexpected response in Query RSP: %x\n", in ufshcd_dev_cmd_completion()
3118 err = -EPERM; in ufshcd_dev_cmd_completion()
3119 dev_err(hba->dev, "%s: Reject UPIU not fully implemented\n", in ufshcd_dev_cmd_completion()
3123 if (hba->dev_cmd.type != DEV_CMD_TYPE_RPMB) { in ufshcd_dev_cmd_completion()
3124 err = -EINVAL; in ufshcd_dev_cmd_completion()
3125 dev_err(hba->dev, "%s: unexpected response %x\n", __func__, resp); in ufshcd_dev_cmd_completion()
3129 err = -EINVAL; in ufshcd_dev_cmd_completion()
3130 dev_err(hba->dev, "%s: Invalid device management cmd response: %x\n", in ufshcd_dev_cmd_completion()
3147 time_left = wait_for_completion_timeout(hba->dev_cmd.complete, in ufshcd_wait_for_dev_cmd()
3156 hba->dev_cmd.complete = NULL; in ufshcd_wait_for_dev_cmd()
3161 err = -ETIMEDOUT; in ufshcd_wait_for_dev_cmd()
3162 dev_dbg(hba->dev, "%s: dev_cmd request timedout, tag %d\n", in ufshcd_wait_for_dev_cmd()
3163 __func__, lrbp->task_tag); in ufshcd_wait_for_dev_cmd()
3166 if (hba->mcq_enabled) { in ufshcd_wait_for_dev_cmd()
3168 if (ufshcd_clear_cmd(hba, lrbp->task_tag) == 0) in ufshcd_wait_for_dev_cmd()
3169 err = -EAGAIN; in ufshcd_wait_for_dev_cmd()
3170 hba->dev_cmd.complete = NULL; in ufshcd_wait_for_dev_cmd()
3175 if (ufshcd_clear_cmd(hba, lrbp->task_tag) == 0) { in ufshcd_wait_for_dev_cmd()
3177 err = -EAGAIN; in ufshcd_wait_for_dev_cmd()
3183 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3184 pending = test_bit(lrbp->task_tag, in ufshcd_wait_for_dev_cmd()
3185 &hba->outstanding_reqs); in ufshcd_wait_for_dev_cmd()
3187 hba->dev_cmd.complete = NULL; in ufshcd_wait_for_dev_cmd()
3188 __clear_bit(lrbp->task_tag, in ufshcd_wait_for_dev_cmd()
3189 &hba->outstanding_reqs); in ufshcd_wait_for_dev_cmd()
3191 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3202 dev_err(hba->dev, "%s: failed to clear tag %d\n", in ufshcd_wait_for_dev_cmd()
3203 __func__, lrbp->task_tag); in ufshcd_wait_for_dev_cmd()
3205 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3206 pending = test_bit(lrbp->task_tag, in ufshcd_wait_for_dev_cmd()
3207 &hba->outstanding_reqs); in ufshcd_wait_for_dev_cmd()
3209 hba->dev_cmd.complete = NULL; in ufshcd_wait_for_dev_cmd()
3210 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3229 mutex_lock(&hba->dev_cmd.lock); in ufshcd_dev_man_lock()
3230 down_read(&hba->clk_scaling_lock); in ufshcd_dev_man_lock()
3235 up_read(&hba->clk_scaling_lock); in ufshcd_dev_man_unlock()
3236 mutex_unlock(&hba->dev_cmd.lock); in ufshcd_dev_man_unlock()
3246 hba->dev_cmd.complete = &wait; in ufshcd_issue_dev_cmd()
3248 ufshcd_add_query_upiu_trace(hba, UFS_QUERY_SEND, lrbp->ucd_req_ptr); in ufshcd_issue_dev_cmd()
3250 ufshcd_send_command(hba, tag, hba->dev_cmd_queue); in ufshcd_issue_dev_cmd()
3254 (struct utp_upiu_req *)lrbp->ucd_rsp_ptr); in ufshcd_issue_dev_cmd()
3260 * ufshcd_exec_dev_cmd - API for sending device management requests
3268 * it is expected you hold the hba->dev_cmd.lock mutex.
3273 const u32 tag = hba->reserved_slot; in ufshcd_exec_dev_cmd()
3274 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_exec_dev_cmd()
3277 /* Protects use of hba->reserved_slot. */ in ufshcd_exec_dev_cmd()
3278 lockdep_assert_held(&hba->dev_cmd.lock); in ufshcd_exec_dev_cmd()
3288 * ufshcd_init_query() - init the query response and request parameters
3289 * @hba: per-adapter instance
3301 *request = &hba->dev_cmd.query.request; in ufshcd_init_query()
3302 *response = &hba->dev_cmd.query.response; in ufshcd_init_query()
3305 (*request)->upiu_req.opcode = opcode; in ufshcd_init_query()
3306 (*request)->upiu_req.idn = idn; in ufshcd_init_query()
3307 (*request)->upiu_req.index = index; in ufshcd_init_query()
3308 (*request)->upiu_req.selector = selector; in ufshcd_init_query()
3320 dev_dbg(hba->dev, in ufshcd_query_flag_retry()
3328 dev_err(hba->dev, in ufshcd_query_flag_retry()
3335 * ufshcd_query_flag() - API function for sending flag query requests
3336 * @hba: per-adapter instance
3342 * Return: 0 for success, non-zero in case of failure.
3363 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in ufshcd_query_flag()
3366 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in ufshcd_query_flag()
3369 dev_err(hba->dev, "%s: Invalid argument for read request\n", in ufshcd_query_flag()
3371 err = -EINVAL; in ufshcd_query_flag()
3376 dev_err(hba->dev, in ufshcd_query_flag()
3379 err = -EINVAL; in ufshcd_query_flag()
3386 dev_err(hba->dev, in ufshcd_query_flag()
3393 *flag_res = (be32_to_cpu(response->upiu_res.value) & in ufshcd_query_flag()
3402 * ufshcd_query_attr - API function for sending attribute requests
3403 * @hba: per-adapter instance
3410 * Return: 0 for success, non-zero in case of failure.
3422 dev_err(hba->dev, "%s: attribute value required for opcode 0x%x\n", in ufshcd_query_attr()
3424 return -EINVAL; in ufshcd_query_attr()
3434 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in ufshcd_query_attr()
3435 request->upiu_req.value = cpu_to_be32(*attr_val); in ufshcd_query_attr()
3438 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in ufshcd_query_attr()
3441 dev_err(hba->dev, "%s: Expected query attr opcode but got = 0x%.2x\n", in ufshcd_query_attr()
3443 err = -EINVAL; in ufshcd_query_attr()
3450 dev_err(hba->dev, "%s: opcode 0x%.2x for idn %d failed, index %d, err = %d\n", in ufshcd_query_attr()
3455 *attr_val = be32_to_cpu(response->upiu_res.value); in ufshcd_query_attr()
3463 * ufshcd_query_attr_retry() - API function for sending query
3465 * @hba: per-adapter instance
3473 * Return: 0 for success, non-zero in case of failure.
3482 for (retries = QUERY_REQ_RETRIES; retries > 0; retries--) { in ufshcd_query_attr_retry()
3486 dev_dbg(hba->dev, "%s: failed with error %d, retries %d\n", in ufshcd_query_attr_retry()
3493 dev_err(hba->dev, in ufshcd_query_attr_retry()
3510 dev_err(hba->dev, "%s: descriptor buffer required for opcode 0x%x\n", in __ufshcd_query_descriptor()
3512 return -EINVAL; in __ufshcd_query_descriptor()
3516 dev_err(hba->dev, "%s: descriptor buffer size (%d) is out of range\n", in __ufshcd_query_descriptor()
3518 return -EINVAL; in __ufshcd_query_descriptor()
3525 hba->dev_cmd.query.descriptor = desc_buf; in __ufshcd_query_descriptor()
3526 request->upiu_req.length = cpu_to_be16(*buf_len); in __ufshcd_query_descriptor()
3530 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in __ufshcd_query_descriptor()
3533 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in __ufshcd_query_descriptor()
3536 dev_err(hba->dev, in __ufshcd_query_descriptor()
3539 err = -EINVAL; in __ufshcd_query_descriptor()
3546 dev_err(hba->dev, "%s: opcode 0x%.2x for idn %d failed, index %d, err = %d\n", in __ufshcd_query_descriptor()
3551 *buf_len = be16_to_cpu(response->upiu_res.length); in __ufshcd_query_descriptor()
3554 hba->dev_cmd.query.descriptor = NULL; in __ufshcd_query_descriptor()
3560 * ufshcd_query_descriptor_retry - API function for sending descriptor requests
3561 * @hba: per-adapter instance
3572 * Return: 0 for success, non-zero in case of failure.
3583 for (retries = QUERY_REQ_RETRIES; retries > 0; retries--) { in ufshcd_query_descriptor_retry()
3586 if (!err || err == -EINVAL) in ufshcd_query_descriptor_retry()
3594 * ufshcd_read_desc_param - read the specified descriptor parameter
3602 * Return: 0 in case of success, non-zero otherwise.
3618 return -EINVAL; in ufshcd_read_desc_param()
3624 return -ENOMEM; in ufshcd_read_desc_param()
3635 …dev_err(hba->dev, "%s: Failed reading descriptor. desc_id %d, desc_index %d, param_offset %d, ret … in ufshcd_read_desc_param()
3644 dev_err(hba->dev, "%s: Invalid offset 0x%x in descriptor IDN 0x%x, length 0x%x\n", in ufshcd_read_desc_param()
3646 ret = -EINVAL; in ufshcd_read_desc_param()
3652 dev_err(hba->dev, "%s: invalid desc_id %d in descriptor header\n", in ufshcd_read_desc_param()
3654 ret = -EINVAL; in ufshcd_read_desc_param()
3661 ret = -EINVAL; in ufshcd_read_desc_param()
3664 min_t(u32, param_size, buff_len - param_offset)); in ufshcd_read_desc_param()
3673 * struct uc_string_id - unicode string
3685 /* replace non-printable or non-ASCII characters with spaces */
3692 * ufshcd_read_string_desc - read string descriptor
3702 * * -ENOMEM: on allocation failure
3703 * * -EINVAL: on a wrong parameter
3713 return -EINVAL; in ufshcd_read_string_desc()
3717 return -ENOMEM; in ufshcd_read_string_desc()
3722 dev_err(hba->dev, "Reading String Desc failed after %d retries. err = %d\n", in ufshcd_read_string_desc()
3728 if (uc_str->len <= QUERY_DESC_HDR_SIZE) { in ufshcd_read_string_desc()
3729 dev_dbg(hba->dev, "String Desc is of zero length\n"); in ufshcd_read_string_desc()
3739 ascii_len = (uc_str->len - QUERY_DESC_HDR_SIZE) / 2 + 1; in ufshcd_read_string_desc()
3742 ret = -ENOMEM; in ufshcd_read_string_desc()
3748 * we need to convert to utf-8 so it can be displayed in ufshcd_read_string_desc()
3750 ret = utf16s_to_utf8s(uc_str->uc, in ufshcd_read_string_desc()
3751 uc_str->len - QUERY_DESC_HDR_SIZE, in ufshcd_read_string_desc()
3752 UTF16_BIG_ENDIAN, str, ascii_len - 1); in ufshcd_read_string_desc()
3754 /* replace non-printable or non-ASCII characters with spaces */ in ufshcd_read_string_desc()
3761 str = kmemdup(uc_str, uc_str->len, GFP_KERNEL); in ufshcd_read_string_desc()
3763 ret = -ENOMEM; in ufshcd_read_string_desc()
3766 ret = uc_str->len; in ufshcd_read_string_desc()
3775 * ufshcd_read_unit_desc_param - read the specified unit descriptor parameter
3782 * Return: 0 in case of success, non-zero otherwise.
3794 if (!ufs_is_valid_unit_desc_lun(&hba->dev_info, lun)) in ufshcd_read_unit_desc_param()
3795 return -EOPNOTSUPP; in ufshcd_read_unit_desc_param()
3806 if (hba->dev_info.wspecversion >= 0x300) { in ufshcd_get_ref_clk_gating_wait()
3811 dev_err(hba->dev, "Failed reading bRefClkGatingWait. err = %d, use default %uus\n", in ufshcd_get_ref_clk_gating_wait()
3816 dev_err(hba->dev, "Undefined ref clk gating wait time, use default %uus\n", in ufshcd_get_ref_clk_gating_wait()
3820 hba->dev_info.clk_gating_wait_us = gating_wait; in ufshcd_get_ref_clk_gating_wait()
3827 * ufshcd_memory_alloc - allocate memory for host memory space data structures
3837 * Return: 0 for success, non-zero in case of failure.
3844 ucdl_size = ufshcd_get_ucd_size(hba) * hba->nutrs; in ufshcd_memory_alloc()
3845 hba->ucdl_base_addr = dmam_alloc_coherent(hba->dev, in ufshcd_memory_alloc()
3847 &hba->ucdl_dma_addr, in ufshcd_memory_alloc()
3853 if (!hba->ucdl_base_addr || in ufshcd_memory_alloc()
3854 WARN_ON(hba->ucdl_dma_addr & (128 - 1))) { in ufshcd_memory_alloc()
3855 dev_err(hba->dev, in ufshcd_memory_alloc()
3864 utrdl_size = (sizeof(struct utp_transfer_req_desc) * hba->nutrs); in ufshcd_memory_alloc()
3865 hba->utrdl_base_addr = dmam_alloc_coherent(hba->dev, in ufshcd_memory_alloc()
3867 &hba->utrdl_dma_addr, in ufshcd_memory_alloc()
3869 if (!hba->utrdl_base_addr || in ufshcd_memory_alloc()
3870 WARN_ON(hba->utrdl_dma_addr & (SZ_1K - 1))) { in ufshcd_memory_alloc()
3871 dev_err(hba->dev, in ufshcd_memory_alloc()
3882 if (hba->utmrdl_base_addr) in ufshcd_memory_alloc()
3888 utmrdl_size = sizeof(struct utp_task_req_desc) * hba->nutmrs; in ufshcd_memory_alloc()
3889 hba->utmrdl_base_addr = dmam_alloc_coherent(hba->dev, in ufshcd_memory_alloc()
3891 &hba->utmrdl_dma_addr, in ufshcd_memory_alloc()
3893 if (!hba->utmrdl_base_addr || in ufshcd_memory_alloc()
3894 WARN_ON(hba->utmrdl_dma_addr & (SZ_1K - 1))) { in ufshcd_memory_alloc()
3895 dev_err(hba->dev, in ufshcd_memory_alloc()
3902 hba->lrb = devm_kcalloc(hba->dev, in ufshcd_memory_alloc()
3903 hba->nutrs, sizeof(struct ufshcd_lrb), in ufshcd_memory_alloc()
3905 if (!hba->lrb) { in ufshcd_memory_alloc()
3906 dev_err(hba->dev, "LRB Memory allocation failed\n"); in ufshcd_memory_alloc()
3911 return -ENOMEM; in ufshcd_memory_alloc()
3915 * ufshcd_host_memory_configure - configure local reference block with
3937 utrdlp = hba->utrdl_base_addr; in ufshcd_host_memory_configure()
3945 cmd_desc_dma_addr = hba->ucdl_dma_addr; in ufshcd_host_memory_configure()
3947 for (i = 0; i < hba->nutrs; i++) { in ufshcd_host_memory_configure()
3955 if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) { in ufshcd_host_memory_configure()
3971 ufshcd_init_lrb(hba, &hba->lrb[i], i); in ufshcd_host_memory_configure()
3976 * ufshcd_dme_link_startup - Notify Unipro to perform link startup
3984 * Return: 0 on success, non-zero value on failure.
3995 dev_dbg(hba->dev, in ufshcd_dme_link_startup()
3996 "dme-link-startup: error code %d\n", ret); in ufshcd_dme_link_startup()
4000 * ufshcd_dme_reset - UIC command for DME_RESET
4006 * Return: 0 on success, non-zero value on failure.
4017 dev_err(hba->dev, in ufshcd_dme_reset()
4018 "dme-reset: error code %d\n", ret); in ufshcd_dme_reset()
4040 * ufshcd_dme_enable - UIC command for DME_ENABLE
4045 * Return: 0 on success, non-zero value on failure.
4056 dev_err(hba->dev, in ufshcd_dme_enable()
4057 "dme-enable: error code %d\n", ret); in ufshcd_dme_enable()
4067 if (!(hba->quirks & UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS)) in ufshcd_add_delay_before_dme_cmd()
4074 if (unlikely(!ktime_to_us(hba->last_dme_cmd_tstamp))) { in ufshcd_add_delay_before_dme_cmd()
4080 hba->last_dme_cmd_tstamp)); in ufshcd_add_delay_before_dme_cmd()
4084 MIN_DELAY_BEFORE_DME_CMDS_US - delta; in ufshcd_add_delay_before_dme_cmd()
4095 hba->last_dme_cmd_tstamp = ktime_get(); in ufshcd_add_delay_before_dme_cmd()
4099 * ufshcd_dme_set_attr - UIC command for DME_SET, DME_PEER_SET
4106 * Return: 0 on success, non-zero value on failure.
4118 "dme-set", in ufshcd_dme_set_attr()
4119 "dme-peer-set" in ufshcd_dme_set_attr()
4129 dev_dbg(hba->dev, "%s: attr-id 0x%x val 0x%x error code %d\n", in ufshcd_dme_set_attr()
4131 } while (ret && peer && --retries); in ufshcd_dme_set_attr()
4134 dev_err(hba->dev, "%s: attr-id 0x%x val 0x%x failed %d retries\n", in ufshcd_dme_set_attr()
4136 UFS_UIC_COMMAND_RETRIES - retries); in ufshcd_dme_set_attr()
4143 * ufshcd_dme_get_attr - UIC command for DME_GET, DME_PEER_GET
4149 * Return: 0 on success, non-zero value on failure.
4159 "dme-get", in ufshcd_dme_get_attr()
4160 "dme-peer-get" in ufshcd_dme_get_attr()
4169 if (peer && (hba->quirks & UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE)) { in ufshcd_dme_get_attr()
4170 orig_pwr_info = hba->pwr_info; in ufshcd_dme_get_attr()
4195 dev_dbg(hba->dev, "%s: attr-id 0x%x error code %d\n", in ufshcd_dme_get_attr()
4197 } while (ret && peer && --retries); in ufshcd_dme_get_attr()
4200 dev_err(hba->dev, "%s: attr-id 0x%x failed %d retries\n", in ufshcd_dme_get_attr()
4202 UFS_UIC_COMMAND_RETRIES - retries); in ufshcd_dme_get_attr()
4207 if (peer && (hba->quirks & UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE) in ufshcd_dme_get_attr()
4216 * ufshcd_uic_pwr_ctrl - executes UIC commands (which affects the link power
4229 * Return: 0 on success, non-zero value on failure.
4239 mutex_lock(&hba->uic_cmd_mutex); in ufshcd_uic_pwr_ctrl()
4242 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4244 ret = -ENOLINK; in ufshcd_uic_pwr_ctrl()
4247 hba->uic_async_done = &uic_async_done; in ufshcd_uic_pwr_ctrl()
4257 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4260 dev_err(hba->dev, in ufshcd_uic_pwr_ctrl()
4262 cmd->command, cmd->argument3, ret); in ufshcd_uic_pwr_ctrl()
4266 if (!wait_for_completion_timeout(hba->uic_async_done, in ufshcd_uic_pwr_ctrl()
4268 dev_err(hba->dev, in ufshcd_uic_pwr_ctrl()
4270 cmd->command, cmd->argument3); in ufshcd_uic_pwr_ctrl()
4272 if (!cmd->cmd_active) { in ufshcd_uic_pwr_ctrl()
4273 dev_err(hba->dev, "%s: Power Mode Change operation has been completed, go check UPMCRS\n", in ufshcd_uic_pwr_ctrl()
4278 ret = -ETIMEDOUT; in ufshcd_uic_pwr_ctrl()
4285 dev_err(hba->dev, in ufshcd_uic_pwr_ctrl()
4287 cmd->command, status); in ufshcd_uic_pwr_ctrl()
4288 ret = (status != PWR_OK) ? status : -1; in ufshcd_uic_pwr_ctrl()
4297 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4298 hba->active_uic_cmd = NULL; in ufshcd_uic_pwr_ctrl()
4299 hba->uic_async_done = NULL; in ufshcd_uic_pwr_ctrl()
4307 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4308 mutex_unlock(&hba->uic_cmd_mutex); in ufshcd_uic_pwr_ctrl()
4314 * ufshcd_send_bsg_uic_cmd - Send UIC commands requested via BSG layer and retrieve the result
4324 if (hba->quirks & UFSHCD_QUIRK_BROKEN_UIC_CMD) in ufshcd_send_bsg_uic_cmd()
4329 if (uic_cmd->argument1 == UIC_ARG_MIB(PA_PWRMODE) && in ufshcd_send_bsg_uic_cmd()
4330 uic_cmd->command == UIC_CMD_DME_SET) { in ufshcd_send_bsg_uic_cmd()
4335 mutex_lock(&hba->uic_cmd_mutex); in ufshcd_send_bsg_uic_cmd()
4342 mutex_unlock(&hba->uic_cmd_mutex); in ufshcd_send_bsg_uic_cmd()
4350 * ufshcd_uic_change_pwr_mode - Perform the UIC power mode chage
4355 * Return: 0 on success, non-zero value on failure.
4366 if (hba->quirks & UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP) { in ufshcd_uic_change_pwr_mode()
4370 dev_err(hba->dev, "%s: failed to enable PA_RXHSUNTERMCAP ret %d\n", in ufshcd_uic_change_pwr_mode()
4390 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_link_recovery()
4391 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_link_recovery()
4393 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_link_recovery()
4400 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_link_recovery()
4402 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_link_recovery()
4404 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_link_recovery()
4407 dev_err(hba->dev, "%s: link recovery failed, err %d", in ufshcd_link_recovery()
4425 trace_ufshcd_profile_hibern8(dev_name(hba->dev), "enter", in ufshcd_uic_hibern8_enter()
4429 dev_err(hba->dev, "%s: hibern8 enter failed. ret = %d\n", in ufshcd_uic_hibern8_enter()
4450 trace_ufshcd_profile_hibern8(dev_name(hba->dev), "exit", in ufshcd_uic_hibern8_exit()
4454 dev_err(hba->dev, "%s: hibern8 exit failed. ret = %d\n", in ufshcd_uic_hibern8_exit()
4459 hba->ufs_stats.last_hibern8_exit_tstamp = local_clock(); in ufshcd_uic_hibern8_exit()
4460 hba->ufs_stats.hibern8_exit_cnt++; in ufshcd_uic_hibern8_exit()
4472 ufshcd_writel(hba, hba->ahit, REG_AUTO_HIBERNATE_IDLE_TIMER); in ufshcd_configure_auto_hibern8()
4477 const u32 cur_ahit = READ_ONCE(hba->ahit); in ufshcd_auto_hibern8_update()
4482 WRITE_ONCE(hba->ahit, ahit); in ufshcd_auto_hibern8_update()
4483 if (!pm_runtime_suspended(&hba->ufs_device_wlun->sdev_gendev)) { in ufshcd_auto_hibern8_update()
4494 * ufshcd_init_pwr_info - setting the POR (power on reset)
4496 * @hba: per-adapter instance
4500 hba->pwr_info.gear_rx = UFS_PWM_G1; in ufshcd_init_pwr_info()
4501 hba->pwr_info.gear_tx = UFS_PWM_G1; in ufshcd_init_pwr_info()
4502 hba->pwr_info.lane_rx = UFS_LANE_1; in ufshcd_init_pwr_info()
4503 hba->pwr_info.lane_tx = UFS_LANE_1; in ufshcd_init_pwr_info()
4504 hba->pwr_info.pwr_rx = SLOWAUTO_MODE; in ufshcd_init_pwr_info()
4505 hba->pwr_info.pwr_tx = SLOWAUTO_MODE; in ufshcd_init_pwr_info()
4506 hba->pwr_info.hs_rate = 0; in ufshcd_init_pwr_info()
4510 * ufshcd_get_max_pwr_mode - reads the max power mode negotiated with device
4511 * @hba: per-adapter instance
4517 struct ufs_pa_layer_attr *pwr_info = &hba->max_pwr_info.info; in ufshcd_get_max_pwr_mode()
4519 if (hba->max_pwr_info.is_valid) in ufshcd_get_max_pwr_mode()
4522 if (hba->quirks & UFSHCD_QUIRK_HIBERN_FASTAUTO) { in ufshcd_get_max_pwr_mode()
4523 pwr_info->pwr_tx = FASTAUTO_MODE; in ufshcd_get_max_pwr_mode()
4524 pwr_info->pwr_rx = FASTAUTO_MODE; in ufshcd_get_max_pwr_mode()
4526 pwr_info->pwr_tx = FAST_MODE; in ufshcd_get_max_pwr_mode()
4527 pwr_info->pwr_rx = FAST_MODE; in ufshcd_get_max_pwr_mode()
4529 pwr_info->hs_rate = PA_HS_MODE_B; in ufshcd_get_max_pwr_mode()
4533 &pwr_info->lane_rx); in ufshcd_get_max_pwr_mode()
4535 &pwr_info->lane_tx); in ufshcd_get_max_pwr_mode()
4537 if (!pwr_info->lane_rx || !pwr_info->lane_tx) { in ufshcd_get_max_pwr_mode()
4538 dev_err(hba->dev, "%s: invalid connected lanes value. rx=%d, tx=%d\n", in ufshcd_get_max_pwr_mode()
4540 pwr_info->lane_rx, in ufshcd_get_max_pwr_mode()
4541 pwr_info->lane_tx); in ufshcd_get_max_pwr_mode()
4542 return -EINVAL; in ufshcd_get_max_pwr_mode()
4545 if (pwr_info->lane_rx != pwr_info->lane_tx) { in ufshcd_get_max_pwr_mode()
4546 dev_err(hba->dev, "%s: asymmetric connected lanes. rx=%d, tx=%d\n", in ufshcd_get_max_pwr_mode()
4548 pwr_info->lane_rx, in ufshcd_get_max_pwr_mode()
4549 pwr_info->lane_tx); in ufshcd_get_max_pwr_mode()
4550 return -EINVAL; in ufshcd_get_max_pwr_mode()
4558 ufshcd_dme_get(hba, UIC_ARG_MIB(PA_MAXRXHSGEAR), &pwr_info->gear_rx); in ufshcd_get_max_pwr_mode()
4559 if (!pwr_info->gear_rx) { in ufshcd_get_max_pwr_mode()
4561 &pwr_info->gear_rx); in ufshcd_get_max_pwr_mode()
4562 if (!pwr_info->gear_rx) { in ufshcd_get_max_pwr_mode()
4563 dev_err(hba->dev, "%s: invalid max pwm rx gear read = %d\n", in ufshcd_get_max_pwr_mode()
4564 __func__, pwr_info->gear_rx); in ufshcd_get_max_pwr_mode()
4565 return -EINVAL; in ufshcd_get_max_pwr_mode()
4567 pwr_info->pwr_rx = SLOW_MODE; in ufshcd_get_max_pwr_mode()
4571 &pwr_info->gear_tx); in ufshcd_get_max_pwr_mode()
4572 if (!pwr_info->gear_tx) { in ufshcd_get_max_pwr_mode()
4574 &pwr_info->gear_tx); in ufshcd_get_max_pwr_mode()
4575 if (!pwr_info->gear_tx) { in ufshcd_get_max_pwr_mode()
4576 dev_err(hba->dev, "%s: invalid max pwm tx gear read = %d\n", in ufshcd_get_max_pwr_mode()
4577 __func__, pwr_info->gear_tx); in ufshcd_get_max_pwr_mode()
4578 return -EINVAL; in ufshcd_get_max_pwr_mode()
4580 pwr_info->pwr_tx = SLOW_MODE; in ufshcd_get_max_pwr_mode()
4583 hba->max_pwr_info.is_valid = true; in ufshcd_get_max_pwr_mode()
4593 if (!hba->force_pmc && in ufshcd_change_power_mode()
4594 pwr_mode->gear_rx == hba->pwr_info.gear_rx && in ufshcd_change_power_mode()
4595 pwr_mode->gear_tx == hba->pwr_info.gear_tx && in ufshcd_change_power_mode()
4596 pwr_mode->lane_rx == hba->pwr_info.lane_rx && in ufshcd_change_power_mode()
4597 pwr_mode->lane_tx == hba->pwr_info.lane_tx && in ufshcd_change_power_mode()
4598 pwr_mode->pwr_rx == hba->pwr_info.pwr_rx && in ufshcd_change_power_mode()
4599 pwr_mode->pwr_tx == hba->pwr_info.pwr_tx && in ufshcd_change_power_mode()
4600 pwr_mode->hs_rate == hba->pwr_info.hs_rate) { in ufshcd_change_power_mode()
4601 dev_dbg(hba->dev, "%s: power already configured\n", __func__); in ufshcd_change_power_mode()
4607 * - PA_RXGEAR, PA_ACTIVERXDATALANES, PA_RXTERMINATION, in ufshcd_change_power_mode()
4608 * - PA_TXGEAR, PA_ACTIVETXDATALANES, PA_TXTERMINATION, in ufshcd_change_power_mode()
4609 * - PA_HSSERIES in ufshcd_change_power_mode()
4611 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_RXGEAR), pwr_mode->gear_rx); in ufshcd_change_power_mode()
4613 pwr_mode->lane_rx); in ufshcd_change_power_mode()
4614 if (pwr_mode->pwr_rx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4615 pwr_mode->pwr_rx == FAST_MODE) in ufshcd_change_power_mode()
4620 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TXGEAR), pwr_mode->gear_tx); in ufshcd_change_power_mode()
4622 pwr_mode->lane_tx); in ufshcd_change_power_mode()
4623 if (pwr_mode->pwr_tx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4624 pwr_mode->pwr_tx == FAST_MODE) in ufshcd_change_power_mode()
4629 if (pwr_mode->pwr_rx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4630 pwr_mode->pwr_tx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4631 pwr_mode->pwr_rx == FAST_MODE || in ufshcd_change_power_mode()
4632 pwr_mode->pwr_tx == FAST_MODE) in ufshcd_change_power_mode()
4634 pwr_mode->hs_rate); in ufshcd_change_power_mode()
4636 if (!(hba->quirks & UFSHCD_QUIRK_SKIP_DEF_UNIPRO_TIMEOUT_SETTING)) { in ufshcd_change_power_mode()
4658 ret = ufshcd_uic_change_pwr_mode(hba, pwr_mode->pwr_rx << 4 in ufshcd_change_power_mode()
4659 | pwr_mode->pwr_tx); in ufshcd_change_power_mode()
4662 dev_err(hba->dev, in ufshcd_change_power_mode()
4665 memcpy(&hba->pwr_info, pwr_mode, in ufshcd_change_power_mode()
4673 * ufshcd_config_pwr_mode - configure a new power mode
4674 * @hba: per-adapter instance
4702 * ufshcd_complete_dev_init() - checks device readiness
4703 * @hba: per-adapter instance
4718 dev_err(hba->dev, in ufshcd_complete_dev_init()
4735 dev_err(hba->dev, in ufshcd_complete_dev_init()
4739 dev_err(hba->dev, in ufshcd_complete_dev_init()
4742 err = -EBUSY; in ufshcd_complete_dev_init()
4749 * ufshcd_make_hba_operational - Make UFS controller operational
4756 * 4. Configure run-stop-registers
4758 * Return: 0 on success, non-zero value on failure.
4770 ufshcd_config_intr_aggr(hba, hba->nutrs - 1, INT_AGGR_DEF_TO); in ufshcd_make_hba_operational()
4775 ufshcd_writel(hba, lower_32_bits(hba->utrdl_dma_addr), in ufshcd_make_hba_operational()
4777 ufshcd_writel(hba, upper_32_bits(hba->utrdl_dma_addr), in ufshcd_make_hba_operational()
4779 ufshcd_writel(hba, lower_32_bits(hba->utmrdl_dma_addr), in ufshcd_make_hba_operational()
4781 ufshcd_writel(hba, upper_32_bits(hba->utmrdl_dma_addr), in ufshcd_make_hba_operational()
4791 dev_err(hba->dev, in ufshcd_make_hba_operational()
4793 err = -EIO; in ufshcd_make_hba_operational()
4801 * ufshcd_hba_stop - Send controller to reset state
4815 dev_err(hba->dev, "%s: Controller disable failed\n", __func__); in ufshcd_hba_stop()
4820 * ufshcd_hba_execute_hce - initialize the controller
4827 * Return: 0 on success, non-zero value on failure.
4833 for (retry = 3; retry > 0; retry--) { in ufshcd_hba_execute_hce()
4848 * During initialization the HCE bit value changes from 1->0->1. in ufshcd_hba_execute_hce()
4856 ufshcd_delay_us(hba->vps->hba_enable_delay_us, 100); in ufshcd_hba_execute_hce()
4863 dev_err(hba->dev, "Enabling the controller failed\n"); in ufshcd_hba_execute_hce()
4867 return -EIO; in ufshcd_hba_execute_hce()
4881 if (hba->quirks & UFSHCI_QUIRK_BROKEN_HCE) { in ufshcd_hba_enable()
4889 dev_err(hba->dev, "DME_RESET failed\n"); in ufshcd_hba_enable()
4895 dev_err(hba->dev, "Enabling DME failed\n"); in ufshcd_hba_enable()
4930 dev_err(hba->dev, "%s: TX LCC Disable failed, peer = %d, lane = %d, err = %d", in ufshcd_disable_tx_lcc()
4951 e = &hba->ufs_stats.event[id]; in ufshcd_update_evt_hist()
4952 e->val[e->pos] = val; in ufshcd_update_evt_hist()
4953 e->tstamp[e->pos] = local_clock(); in ufshcd_update_evt_hist()
4954 e->cnt += 1; in ufshcd_update_evt_hist()
4955 e->pos = (e->pos + 1) % UFS_EVENT_HIST_LENGTH; in ufshcd_update_evt_hist()
4962 * ufshcd_link_startup - Initialize unipro link startup
4965 * Return: 0 for success, non-zero in case of failure.
4986 /* check if device is detected by inter-connect layer */ in ufshcd_link_startup()
4991 dev_err(hba->dev, "%s: Device not present\n", __func__); in ufshcd_link_startup()
4992 ret = -ENXIO; in ufshcd_link_startup()
4999 * succeeds. So reset the local Uni-Pro and try again. in ufshcd_link_startup()
5007 } while (ret && retries--); in ufshcd_link_startup()
5023 /* Mark that link is up in PWM-G1, 1-lane, SLOW-AUTO mode */ in ufshcd_link_startup()
5027 if (hba->quirks & UFSHCD_QUIRK_BROKEN_LCC) { in ufshcd_link_startup()
5043 dev_err(hba->dev, "link startup failed %d\n", ret); in ufshcd_link_startup()
5052 * ufshcd_verify_dev_init() - Verify device initialization
5053 * @hba: per-adapter instance
5070 for (retries = NOP_OUT_RETRIES; retries > 0; retries--) { in ufshcd_verify_dev_init()
5072 hba->nop_out_timeout); in ufshcd_verify_dev_init()
5074 if (!err || err == -ETIMEDOUT) in ufshcd_verify_dev_init()
5077 dev_dbg(hba->dev, "%s: error %d retrying\n", __func__, err); in ufshcd_verify_dev_init()
5083 dev_err(hba->dev, "%s: NOP OUT failed %d\n", __func__, err); in ufshcd_verify_dev_init()
5088 * ufshcd_setup_links - associate link b/w device wlun and other luns
5100 if (hba->ufs_device_wlun) { in ufshcd_setup_links()
5101 link = device_link_add(&sdev->sdev_gendev, in ufshcd_setup_links()
5102 &hba->ufs_device_wlun->sdev_gendev, in ufshcd_setup_links()
5105 dev_err(&sdev->sdev_gendev, "Failed establishing link - %s\n", in ufshcd_setup_links()
5106 dev_name(&hba->ufs_device_wlun->sdev_gendev)); in ufshcd_setup_links()
5109 hba->luns_avail--; in ufshcd_setup_links()
5111 if (hba->luns_avail == 1) { in ufshcd_setup_links()
5120 hba->luns_avail--; in ufshcd_setup_links()
5125 * ufshcd_lu_init - Initialize the relevant parameters of the LU
5126 * @hba: per-adapter instance
5132 u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun); in ufshcd_lu_init()
5133 u8 lun_qdepth = hba->nutrs; in ufshcd_lu_init()
5143 if (ret == -EOPNOTSUPP) in ufshcd_lu_init()
5152 * In per-LU queueing architecture, bLUQueueDepth will not be 0, then we will in ufshcd_lu_init()
5155 lun_qdepth = min_t(int, desc_buf[UNIT_DESC_PARAM_LU_Q_DEPTH], hba->nutrs); in ufshcd_lu_init()
5161 if (hba->dev_info.f_power_on_wp_en && lun < hba->dev_info.max_lu_supported && in ufshcd_lu_init()
5162 !hba->dev_info.is_lu_power_on_wp && in ufshcd_lu_init()
5164 hba->dev_info.is_lu_power_on_wp = true; in ufshcd_lu_init()
5169 hba->dev_info.b_advanced_rpmb_en = true; in ufshcd_lu_init()
5178 dev_dbg(hba->dev, "Set LU %x queue depth %d\n", lun, lun_qdepth); in ufshcd_lu_init()
5183 * ufshcd_sdev_init - handle initial SCSI device configurations
5192 hba = shost_priv(sdev->host); in ufshcd_sdev_init()
5195 sdev->use_10_for_ms = 1; in ufshcd_sdev_init()
5198 sdev->set_dbd_for_ms = 1; in ufshcd_sdev_init()
5201 sdev->allow_restart = 1; in ufshcd_sdev_init()
5204 sdev->no_report_opcodes = 1; in ufshcd_sdev_init()
5207 sdev->no_write_same = 1; in ufshcd_sdev_init()
5217 * ufshcd_change_queue_depth - change queue depth
5227 return scsi_change_queue_depth(sdev, min(depth, sdev->host->can_queue)); in ufshcd_change_queue_depth()
5231 * ufshcd_sdev_configure - adjust SCSI device configurations
5240 struct ufs_hba *hba = shost_priv(sdev->host); in ufshcd_sdev_configure()
5241 struct request_queue *q = sdev->request_queue; in ufshcd_sdev_configure()
5243 lim->dma_pad_mask = PRDT_DATA_BYTE_COUNT_PAD - 1; in ufshcd_sdev_configure()
5246 * Block runtime-pm until all consumers are added. in ufshcd_sdev_configure()
5250 pm_runtime_get_noresume(&sdev->sdev_gendev); in ufshcd_sdev_configure()
5252 sdev->rpm_autosuspend = 1; in ufshcd_sdev_configure()
5254 * Do not print messages during runtime PM to avoid never-ending cycles in ufshcd_sdev_configure()
5258 sdev->silence_suspend = 1; in ufshcd_sdev_configure()
5260 if (hba->vops && hba->vops->config_scsi_dev) in ufshcd_sdev_configure()
5261 hba->vops->config_scsi_dev(sdev); in ufshcd_sdev_configure()
5269 * ufshcd_sdev_destroy - remove SCSI device configurations
5277 hba = shost_priv(sdev->host); in ufshcd_sdev_destroy()
5280 if (ufshcd_scsi_to_upiu_lun(sdev->lun) == UFS_UPIU_UFS_DEVICE_WLUN) { in ufshcd_sdev_destroy()
5281 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5282 hba->ufs_device_wlun = NULL; in ufshcd_sdev_destroy()
5283 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5284 } else if (hba->ufs_device_wlun) { in ufshcd_sdev_destroy()
5288 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5289 if (hba->ufs_device_wlun) { in ufshcd_sdev_destroy()
5290 supplier = &hba->ufs_device_wlun->sdev_gendev; in ufshcd_sdev_destroy()
5293 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_sdev_destroy()
5301 device_link_remove(&sdev->sdev_gendev, supplier); in ufshcd_sdev_destroy()
5308 * ufshcd_scsi_cmd_status - Update SCSI command result based on SCSI status
5341 * ufshcd_transfer_rsp_status - Get overall status of the response
5358 upiu_flags = lrbp->ucd_rsp_ptr->header.flags; in ufshcd_transfer_rsp_status()
5359 resid = be32_to_cpu(lrbp->ucd_rsp_ptr->sr.residual_transfer_count); in ufshcd_transfer_rsp_status()
5365 scsi_set_resid(lrbp->cmd, resid); in ufshcd_transfer_rsp_status()
5370 if (hba->quirks & UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR) { in ufshcd_transfer_rsp_status()
5371 if (lrbp->ucd_rsp_ptr->header.response || in ufshcd_transfer_rsp_status()
5372 lrbp->ucd_rsp_ptr->header.status) in ufshcd_transfer_rsp_status()
5378 hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); in ufshcd_transfer_rsp_status()
5379 switch (ufshcd_get_req_rsp(lrbp->ucd_rsp_ptr)) { in ufshcd_transfer_rsp_status()
5385 scsi_status = lrbp->ucd_rsp_ptr->header.status; in ufshcd_transfer_rsp_status()
5400 if (!hba->pm_op_in_progress && in ufshcd_transfer_rsp_status()
5402 ufshcd_is_exception_event(lrbp->ucd_rsp_ptr)) in ufshcd_transfer_rsp_status()
5404 schedule_work(&hba->eeh_work); in ufshcd_transfer_rsp_status()
5409 dev_err(hba->dev, in ufshcd_transfer_rsp_status()
5413 dev_err(hba->dev, in ufshcd_transfer_rsp_status()
5423 dev_warn(hba->dev, in ufshcd_transfer_rsp_status()
5426 lrbp->task_tag); in ufshcd_transfer_rsp_status()
5439 dev_err(hba->dev, in ufshcd_transfer_rsp_status()
5441 ocs, lrbp->task_tag); in ufshcd_transfer_rsp_status()
5448 (host_byte(result) != DID_REQUEUE) && !hba->silence_err_logs) in ufshcd_transfer_rsp_status()
5449 ufshcd_print_tr(hba, lrbp->task_tag, true); in ufshcd_transfer_rsp_status()
5463 if (hba->active_uic_cmd && in ufshcd_is_auto_hibern8_error()
5464 (hba->active_uic_cmd->command == UIC_CMD_DME_HIBER_ENTER || in ufshcd_is_auto_hibern8_error()
5465 hba->active_uic_cmd->command == UIC_CMD_DME_HIBER_EXIT)) in ufshcd_is_auto_hibern8_error()
5472 * ufshcd_uic_cmd_compl - handle completion of uic command
5477 * IRQ_HANDLED - If interrupt is valid
5478 * IRQ_NONE - If invalid interrupt
5485 spin_lock(hba->host->host_lock); in ufshcd_uic_cmd_compl()
5486 cmd = hba->active_uic_cmd; in ufshcd_uic_cmd_compl()
5491 hba->errors |= (UFSHCD_UIC_HIBERN8_MASK & intr_status); in ufshcd_uic_cmd_compl()
5494 cmd->argument2 |= ufshcd_get_uic_cmd_result(hba); in ufshcd_uic_cmd_compl()
5495 cmd->argument3 = ufshcd_get_dme_attr_val(hba); in ufshcd_uic_cmd_compl()
5496 if (!hba->uic_async_done) in ufshcd_uic_cmd_compl()
5497 cmd->cmd_active = 0; in ufshcd_uic_cmd_compl()
5498 complete(&cmd->done); in ufshcd_uic_cmd_compl()
5502 if (intr_status & UFSHCD_UIC_PWR_MASK && hba->uic_async_done) { in ufshcd_uic_cmd_compl()
5503 cmd->cmd_active = 0; in ufshcd_uic_cmd_compl()
5504 complete(hba->uic_async_done); in ufshcd_uic_cmd_compl()
5512 spin_unlock(hba->host->host_lock); in ufshcd_uic_cmd_compl()
5521 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_release_scsi_cmd()
5530 * ufshcd_compl_one_cqe - handle a completion queue entry
5542 lrbp = &hba->lrb[task_tag]; in ufshcd_compl_one_cqe()
5543 lrbp->compl_time_stamp = ktime_get(); in ufshcd_compl_one_cqe()
5544 lrbp->compl_time_stamp_local_clock = local_clock(); in ufshcd_compl_one_cqe()
5545 cmd = lrbp->cmd; in ufshcd_compl_one_cqe()
5550 cmd->result = ufshcd_transfer_rsp_status(hba, lrbp, cqe); in ufshcd_compl_one_cqe()
5554 } else if (hba->dev_cmd.complete) { in ufshcd_compl_one_cqe()
5556 ocs = le32_to_cpu(cqe->status) & MASK_OCS; in ufshcd_compl_one_cqe()
5557 lrbp->utr_descriptor_ptr->header.ocs = ocs; in ufshcd_compl_one_cqe()
5559 complete(hba->dev_cmd.complete); in ufshcd_compl_one_cqe()
5564 * __ufshcd_transfer_req_compl - handle SCSI and query command completion
5573 for_each_set_bit(tag, &completed_reqs, hba->nutrs) in __ufshcd_transfer_req_compl()
5579 UFSHCD_POLL_FROM_INTERRUPT_CONTEXT = -1
5587 for_each_set_bit(tag, completed_reqs, hba->nutrs) { in ufshcd_clear_polled()
5588 struct scsi_cmnd *cmd = hba->lrb[tag].cmd; in ufshcd_clear_polled()
5592 if (scsi_cmd_to_rq(cmd)->cmd_flags & REQ_POLLED) in ufshcd_clear_polled()
5608 if (hba->mcq_enabled) { in ufshcd_poll()
5609 hwq = &hba->uhq[queue_num]; in ufshcd_poll()
5614 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_poll()
5616 completed_reqs = ~tr_doorbell & hba->outstanding_reqs; in ufshcd_poll()
5617 WARN_ONCE(completed_reqs & ~hba->outstanding_reqs, in ufshcd_poll()
5619 hba->outstanding_reqs); in ufshcd_poll()
5624 hba->outstanding_reqs &= ~completed_reqs; in ufshcd_poll()
5625 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_poll()
5634 * ufshcd_mcq_compl_pending_transfer - MCQ mode function. It is
5653 for (tag = 0; tag < hba->nutrs; tag++) { in ufshcd_mcq_compl_pending_transfer()
5654 lrbp = &hba->lrb[tag]; in ufshcd_mcq_compl_pending_transfer()
5655 cmd = lrbp->cmd; in ufshcd_mcq_compl_pending_transfer()
5657 test_bit(SCMD_STATE_COMPLETE, &cmd->state)) in ufshcd_mcq_compl_pending_transfer()
5668 spin_lock_irqsave(&hwq->cq_lock, flags); in ufshcd_mcq_compl_pending_transfer()
5669 if (cmd && !test_bit(SCMD_STATE_COMPLETE, &cmd->state)) { in ufshcd_mcq_compl_pending_transfer()
5674 spin_unlock_irqrestore(&hwq->cq_lock, flags); in ufshcd_mcq_compl_pending_transfer()
5682 * ufshcd_transfer_req_compl - handle SCSI and query command completion
5686 * IRQ_HANDLED - If interrupt is valid
5687 * IRQ_NONE - If invalid interrupt
5699 !(hba->quirks & UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR)) in ufshcd_transfer_req_compl()
5709 ufshcd_poll(hba->host, UFSHCD_POLL_FROM_INTERRUPT_CONTEXT); in ufshcd_transfer_req_compl()
5725 mutex_lock(&hba->ee_ctrl_mutex); in ufshcd_write_ee_control()
5726 err = __ufshcd_write_ee_control(hba, hba->ee_ctrl_mask); in ufshcd_write_ee_control()
5727 mutex_unlock(&hba->ee_ctrl_mutex); in ufshcd_write_ee_control()
5729 dev_err(hba->dev, "%s: failed to write ee control %d\n", in ufshcd_write_ee_control()
5740 mutex_lock(&hba->ee_ctrl_mutex); in ufshcd_update_ee_control()
5743 if (ee_ctrl_mask != hba->ee_ctrl_mask) in ufshcd_update_ee_control()
5747 hba->ee_ctrl_mask = ee_ctrl_mask; in ufshcd_update_ee_control()
5750 mutex_unlock(&hba->ee_ctrl_mutex); in ufshcd_update_ee_control()
5755 * ufshcd_disable_ee - disable exception event
5756 * @hba: per-adapter instance
5762 * Return: zero on success, non-zero error value on failure.
5770 * ufshcd_enable_ee - enable exception event
5771 * @hba: per-adapter instance
5777 * Return: zero on success, non-zero error value on failure.
5785 * ufshcd_enable_auto_bkops - Allow device managed BKOPS
5786 * @hba: per-adapter instance
5793 * Return: zero on success, non-zero on failure.
5799 if (hba->auto_bkops_enabled) in ufshcd_enable_auto_bkops()
5805 dev_err(hba->dev, "%s: failed to enable bkops %d\n", in ufshcd_enable_auto_bkops()
5810 hba->auto_bkops_enabled = true; in ufshcd_enable_auto_bkops()
5811 trace_ufshcd_auto_bkops_state(dev_name(hba->dev), "Enabled"); in ufshcd_enable_auto_bkops()
5816 dev_err(hba->dev, "%s: failed to disable exception event %d\n", in ufshcd_enable_auto_bkops()
5823 * ufshcd_disable_auto_bkops - block device in doing background operations
5824 * @hba: per-adapter instance
5828 * not-operable. Make sure to call ufshcd_enable_auto_bkops() whenever the
5832 * Return: zero on success, non-zero on failure.
5838 if (!hba->auto_bkops_enabled) in ufshcd_disable_auto_bkops()
5847 dev_err(hba->dev, "%s: failed to enable exception event %d\n", in ufshcd_disable_auto_bkops()
5855 dev_err(hba->dev, "%s: failed to disable bkops %d\n", in ufshcd_disable_auto_bkops()
5861 hba->auto_bkops_enabled = false; in ufshcd_disable_auto_bkops()
5862 trace_ufshcd_auto_bkops_state(dev_name(hba->dev), "Disabled"); in ufshcd_disable_auto_bkops()
5863 hba->is_urgent_bkops_lvl_checked = false; in ufshcd_disable_auto_bkops()
5869 * ufshcd_force_reset_auto_bkops - force reset auto bkops state
5874 * as well. This function would change the auto-bkops state based on
5880 hba->auto_bkops_enabled = false; in ufshcd_force_reset_auto_bkops()
5881 hba->ee_ctrl_mask |= MASK_EE_URGENT_BKOPS; in ufshcd_force_reset_auto_bkops()
5884 hba->auto_bkops_enabled = true; in ufshcd_force_reset_auto_bkops()
5885 hba->ee_ctrl_mask &= ~MASK_EE_URGENT_BKOPS; in ufshcd_force_reset_auto_bkops()
5888 hba->urgent_bkops_lvl = BKOPS_STATUS_PERF_IMPACT; in ufshcd_force_reset_auto_bkops()
5889 hba->is_urgent_bkops_lvl_checked = false; in ufshcd_force_reset_auto_bkops()
5899 * ufshcd_bkops_ctrl - control the auto bkops based on current bkops status
5900 * @hba: per-adapter instance
5904 * bkops_status is greater than or equal to the "hba->urgent_bkops_lvl",
5907 * Return: 0 for success, non-zero in case of failure.
5909 * NOTE: Caller of this function can check the "hba->auto_bkops_enabled" flag
5915 enum bkops_status status = hba->urgent_bkops_lvl; in ufshcd_bkops_ctrl()
5921 dev_err(hba->dev, "%s: failed to get BKOPS status %d\n", in ufshcd_bkops_ctrl()
5925 dev_err(hba->dev, "%s: invalid BKOPS status %d\n", in ufshcd_bkops_ctrl()
5927 err = -EINVAL; in ufshcd_bkops_ctrl()
5950 if (hba->is_urgent_bkops_lvl_checked) in ufshcd_bkops_exception_event_handler()
5955 dev_err(hba->dev, "%s: failed to get BKOPS status %d\n", in ufshcd_bkops_exception_event_handler()
5967 dev_err(hba->dev, "%s: device raised urgent BKOPS exception for bkops status %d\n", in ufshcd_bkops_exception_event_handler()
5970 hba->urgent_bkops_lvl = curr_status; in ufshcd_bkops_exception_event_handler()
5971 hba->is_urgent_bkops_lvl_checked = true; in ufshcd_bkops_exception_event_handler()
5978 dev_err(hba->dev, "%s: failed to handle urgent bkops %d\n", in ufshcd_bkops_exception_event_handler()
5997 hba->dev_info.wb_enabled == enable) in ufshcd_wb_toggle()
6002 dev_err(hba->dev, "%s: Write Booster %s failed %d\n", in ufshcd_wb_toggle()
6007 hba->dev_info.wb_enabled = enable; in ufshcd_wb_toggle()
6008 dev_dbg(hba->dev, "%s: Write Booster %s\n", in ufshcd_wb_toggle()
6022 dev_err(hba->dev, "%s: WB-Buf Flush during H8 %s failed %d\n", in ufshcd_wb_toggle_buf_flush_during_h8()
6026 dev_dbg(hba->dev, "%s: WB-Buf Flush during H8 %s\n", in ufshcd_wb_toggle_buf_flush_during_h8()
6035 hba->dev_info.wb_buf_flush_enabled == enable) in ufshcd_wb_toggle_buf_flush()
6040 dev_err(hba->dev, "%s: WB-Buf Flush %s failed %d\n", in ufshcd_wb_toggle_buf_flush()
6045 hba->dev_info.wb_buf_flush_enabled = enable; in ufshcd_wb_toggle_buf_flush()
6046 dev_dbg(hba->dev, "%s: WB-Buf Flush %s\n", in ufshcd_wb_toggle_buf_flush()
6064 dev_err(hba->dev, "%s: dCurWriteBoosterBufferSize read failed %d\n", in ufshcd_wb_presrv_usrspc_keep_vcc_on()
6070 dev_info(hba->dev, "dCurWBBuf: %d WB disabled until free-space is available\n", in ufshcd_wb_presrv_usrspc_keep_vcc_on()
6075 return avail_buf < hba->vps->wb_flush_threshold; in ufshcd_wb_presrv_usrspc_keep_vcc_on()
6085 hba->caps &= ~UFSHCD_CAP_WB_EN; in ufshcd_wb_force_disable()
6087 dev_info(hba->dev, "%s: WB force disabled\n", __func__); in ufshcd_wb_force_disable()
6101 dev_err(hba->dev, in ufshcd_is_wb_buf_lifetime_available()
6108 dev_err(hba->dev, "%s: WB buf lifetime is exhausted 0x%02X\n", in ufshcd_is_wb_buf_lifetime_available()
6113 dev_dbg(hba->dev, "%s: WB buf lifetime is 0x%02X\n", in ufshcd_is_wb_buf_lifetime_available()
6135 * With user-space reduction enabled, it's enough to enable flush in ufshcd_wb_need_flush()
6138 * With user-space preserved enabled, the current-buffer in ufshcd_wb_need_flush()
6149 dev_warn(hba->dev, "%s: dAvailableWriteBoosterBufferSize read failed %d\n", in ufshcd_wb_need_flush()
6154 if (!hba->dev_info.b_presrv_uspc_en) in ufshcd_wb_need_flush()
6176 * ufshcd_exception_event_handler - handle exceptions raised by device
6191 dev_err(hba->dev, "%s: failed to get exception status %d\n", in ufshcd_exception_event_handler()
6196 trace_ufshcd_exception_event(dev_name(hba->dev), status); in ufshcd_exception_event_handler()
6198 if (status & hba->ee_drv_mask & MASK_EE_URGENT_BKOPS) in ufshcd_exception_event_handler()
6201 if (status & hba->ee_drv_mask & MASK_EE_URGENT_TEMP) in ufshcd_exception_event_handler()
6207 /* Complete requests that have door-bell cleared */
6210 if (hba->mcq_enabled) in ufshcd_complete_requests()
6219 * ufshcd_quirk_dl_nac_errors - This function checks if error handling is
6221 * @hba: per-adapter instance
6230 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6235 if (hba->saved_err & (CONTROLLER_FATAL_ERROR | SYSTEM_BUS_FATAL_ERROR)) in ufshcd_quirk_dl_nac_errors()
6238 if ((hba->saved_err & DEVICE_FATAL_ERROR) || in ufshcd_quirk_dl_nac_errors()
6239 ((hba->saved_err & UIC_ERROR) && in ufshcd_quirk_dl_nac_errors()
6240 (hba->saved_uic_err & UFSHCD_UIC_DL_TCx_REPLAY_ERROR))) in ufshcd_quirk_dl_nac_errors()
6243 if ((hba->saved_err & UIC_ERROR) && in ufshcd_quirk_dl_nac_errors()
6244 (hba->saved_uic_err & UFSHCD_UIC_DL_NAC_RECEIVED_ERROR)) { in ufshcd_quirk_dl_nac_errors()
6249 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6251 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6257 if ((hba->saved_err & INT_FATAL_ERRORS) || in ufshcd_quirk_dl_nac_errors()
6258 ((hba->saved_err & UIC_ERROR) && in ufshcd_quirk_dl_nac_errors()
6259 (hba->saved_uic_err & ~UFSHCD_UIC_DL_NAC_RECEIVED_ERROR))) in ufshcd_quirk_dl_nac_errors()
6265 * - If we don't get any response then do error recovery. in ufshcd_quirk_dl_nac_errors()
6266 * - If we get response then clear the DL NAC error bit. in ufshcd_quirk_dl_nac_errors()
6269 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6271 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6277 if (hba->saved_uic_err == UFSHCD_UIC_DL_NAC_RECEIVED_ERROR) in ufshcd_quirk_dl_nac_errors()
6278 hba->saved_err &= ~UIC_ERROR; in ufshcd_quirk_dl_nac_errors()
6280 hba->saved_uic_err &= ~UFSHCD_UIC_DL_NAC_RECEIVED_ERROR; in ufshcd_quirk_dl_nac_errors()
6281 if (!hba->saved_uic_err) in ufshcd_quirk_dl_nac_errors()
6285 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6292 return (hba->saved_uic_err & UFSHCD_UIC_DL_PA_INIT_ERROR) || in ufshcd_is_saved_err_fatal()
6293 (hba->saved_err & (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK)); in ufshcd_is_saved_err_fatal()
6298 lockdep_assert_held(hba->host->host_lock); in ufshcd_schedule_eh_work()
6301 if (hba->ufshcd_state != UFSHCD_STATE_ERROR) { in ufshcd_schedule_eh_work()
6302 if (hba->force_reset || ufshcd_is_link_broken(hba) || in ufshcd_schedule_eh_work()
6304 hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_FATAL; in ufshcd_schedule_eh_work()
6306 hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_NON_FATAL; in ufshcd_schedule_eh_work()
6307 queue_work(hba->eh_wq, &hba->eh_work); in ufshcd_schedule_eh_work()
6313 spin_lock_irq(hba->host->host_lock); in ufshcd_force_error_recovery()
6314 hba->force_reset = true; in ufshcd_force_error_recovery()
6316 spin_unlock_irq(hba->host->host_lock); in ufshcd_force_error_recovery()
6321 mutex_lock(&hba->wb_mutex); in ufshcd_clk_scaling_allow()
6322 down_write(&hba->clk_scaling_lock); in ufshcd_clk_scaling_allow()
6323 hba->clk_scaling.is_allowed = allow; in ufshcd_clk_scaling_allow()
6324 up_write(&hba->clk_scaling_lock); in ufshcd_clk_scaling_allow()
6325 mutex_unlock(&hba->wb_mutex); in ufshcd_clk_scaling_allow()
6331 if (hba->clk_scaling.is_enabled) in ufshcd_clk_scaling_suspend()
6336 if (hba->clk_scaling.is_enabled) in ufshcd_clk_scaling_suspend()
6344 if (pm_runtime_status_suspended(&hba->ufs_device_wlun->sdev_gendev) || in ufshcd_err_handling_prepare()
6345 hba->is_sys_suspended) { in ufshcd_err_handling_prepare()
6356 ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq); in ufshcd_err_handling_prepare()
6357 ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq2); in ufshcd_err_handling_prepare()
6361 pm_op = hba->is_sys_suspended ? UFS_SYSTEM_PM : UFS_RUNTIME_PM; in ufshcd_err_handling_prepare()
6366 hba->clk_scaling.is_enabled) in ufshcd_err_handling_prepare()
6371 blk_mq_quiesce_tagset(&hba->host->tag_set); in ufshcd_err_handling_prepare()
6372 cancel_work_sync(&hba->eeh_work); in ufshcd_err_handling_prepare()
6377 blk_mq_unquiesce_tagset(&hba->host->tag_set); in ufshcd_err_handling_unprepare()
6386 return (!hba->is_powered || hba->shutting_down || in ufshcd_err_handling_should_stop()
6387 !hba->ufs_device_wlun || in ufshcd_err_handling_should_stop()
6388 hba->ufshcd_state == UFSHCD_STATE_ERROR || in ufshcd_err_handling_should_stop()
6389 (!(hba->saved_err || hba->saved_uic_err || hba->force_reset || in ufshcd_err_handling_should_stop()
6396 struct Scsi_Host *shost = hba->host; in ufshcd_recover_pm_error()
6401 hba->is_sys_suspended = false; in ufshcd_recover_pm_error()
6406 ret = pm_runtime_set_active(&hba->ufs_device_wlun->sdev_gendev); in ufshcd_recover_pm_error()
6410 ret = pm_runtime_set_active(hba->dev); in ufshcd_recover_pm_error()
6419 q = sdev->request_queue; in ufshcd_recover_pm_error()
6420 if (q->dev && (q->rpm_status == RPM_SUSPENDED || in ufshcd_recover_pm_error()
6421 q->rpm_status == RPM_SUSPENDING)) in ufshcd_recover_pm_error()
6422 pm_request_resume(q->dev); in ufshcd_recover_pm_error()
6434 struct ufs_pa_layer_attr *pwr_info = &hba->pwr_info; in ufshcd_is_pwr_mode_restore_needed()
6439 if (pwr_info->pwr_rx != ((mode >> PWRMODE_RX_OFFSET) & PWRMODE_MASK)) in ufshcd_is_pwr_mode_restore_needed()
6442 if (pwr_info->pwr_tx != (mode & PWRMODE_MASK)) in ufshcd_is_pwr_mode_restore_needed()
6451 u32 tag = rq->tag; in ufshcd_abort_one()
6453 struct scsi_device *sdev = cmd->device; in ufshcd_abort_one()
6454 struct Scsi_Host *shost = sdev->host; in ufshcd_abort_one()
6458 dev_err(hba->dev, "Aborting tag %d / CDB %#02x %s\n", tag, in ufshcd_abort_one()
6459 hba->lrb[tag].cmd ? hba->lrb[tag].cmd->cmnd[0] : -1, in ufshcd_abort_one()
6466 * ufshcd_abort_all - Abort all pending commands.
6475 blk_mq_tagset_busy_iter(&hba->host->tag_set, ufshcd_abort_one, &ret); in ufshcd_abort_all()
6480 for_each_set_bit(tag, &hba->outstanding_tasks, hba->nutmrs) { in ufshcd_abort_all()
6494 * ufshcd_err_handler - handle UFS errors that require s/w attention
6508 dev_info(hba->dev, in ufshcd_err_handler()
6510 __func__, ufshcd_state_name[hba->ufshcd_state], in ufshcd_err_handler()
6511 hba->is_powered, hba->shutting_down, hba->saved_err, in ufshcd_err_handler()
6512 hba->saved_uic_err, hba->force_reset, in ufshcd_err_handler()
6515 down(&hba->host_sem); in ufshcd_err_handler()
6516 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6518 if (hba->ufshcd_state != UFSHCD_STATE_ERROR) in ufshcd_err_handler()
6519 hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; in ufshcd_err_handler()
6520 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6521 up(&hba->host_sem); in ufshcd_err_handler()
6525 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6527 /* Complete requests that have door-bell cleared by h/w */ in ufshcd_err_handler()
6529 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6534 if (hba->ufshcd_state != UFSHCD_STATE_ERROR) in ufshcd_err_handler()
6535 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_err_handler()
6543 if ((hba->dev_quirks & UFS_DEVICE_QUIRK_RECOVERY_FROM_DL_NAC_ERRORS) && in ufshcd_err_handler()
6544 !hba->force_reset) { in ufshcd_err_handler()
6547 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6550 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6555 if ((hba->saved_err & (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK)) || in ufshcd_err_handler()
6556 (hba->saved_uic_err && in ufshcd_err_handler()
6557 (hba->saved_uic_err != UFSHCD_UIC_PA_GENERIC_ERROR))) { in ufshcd_err_handler()
6558 bool pr_prdt = !!(hba->saved_err & SYSTEM_BUS_FATAL_ERROR); in ufshcd_err_handler()
6560 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6564 ufshcd_print_tmrs(hba, hba->outstanding_tasks); in ufshcd_err_handler()
6566 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6574 if (hba->force_reset || ufshcd_is_link_broken(hba) || in ufshcd_err_handler()
6576 ((hba->saved_err & UIC_ERROR) && in ufshcd_err_handler()
6577 (hba->saved_uic_err & (UFSHCD_UIC_DL_NAC_RECEIVED_ERROR | in ufshcd_err_handler()
6587 if (hba->saved_uic_err & UFSHCD_UIC_PA_GENERIC_ERROR) { in ufshcd_err_handler()
6588 hba->saved_uic_err &= ~UFSHCD_UIC_PA_GENERIC_ERROR; in ufshcd_err_handler()
6589 if (!hba->saved_uic_err) in ufshcd_err_handler()
6590 hba->saved_err &= ~UIC_ERROR; in ufshcd_err_handler()
6591 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6594 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6595 if (!hba->saved_err && !needs_restore) in ufshcd_err_handler()
6599 hba->silence_err_logs = true; in ufshcd_err_handler()
6601 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6605 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6606 hba->silence_err_logs = false; in ufshcd_err_handler()
6615 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6620 down_write(&hba->clk_scaling_lock); in ufshcd_err_handler()
6621 hba->force_pmc = true; in ufshcd_err_handler()
6622 pmc_err = ufshcd_config_pwr_mode(hba, &(hba->pwr_info)); in ufshcd_err_handler()
6625 dev_err(hba->dev, "%s: Failed to restore power mode, err = %d\n", in ufshcd_err_handler()
6628 hba->force_pmc = false; in ufshcd_err_handler()
6630 up_write(&hba->clk_scaling_lock); in ufshcd_err_handler()
6631 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6639 hba->force_reset = false; in ufshcd_err_handler()
6640 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6643 dev_err(hba->dev, "%s: reset and restore failed with err %d\n", in ufshcd_err_handler()
6647 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6652 if (hba->ufshcd_state == UFSHCD_STATE_RESET) in ufshcd_err_handler()
6653 hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; in ufshcd_err_handler()
6654 if (hba->saved_err || hba->saved_uic_err) in ufshcd_err_handler()
6655 dev_err_ratelimited(hba->dev, "%s: exit: saved_err 0x%x saved_uic_err 0x%x", in ufshcd_err_handler()
6656 __func__, hba->saved_err, hba->saved_uic_err); in ufshcd_err_handler()
6659 if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL && in ufshcd_err_handler()
6660 hba->ufshcd_state != UFSHCD_STATE_ERROR) { in ufshcd_err_handler()
6661 if (--retries) in ufshcd_err_handler()
6663 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_err_handler()
6666 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6668 up(&hba->host_sem); in ufshcd_err_handler()
6670 dev_info(hba->dev, "%s finished; HBA state %s\n", __func__, in ufshcd_err_handler()
6671 ufshcd_state_name[hba->ufshcd_state]); in ufshcd_err_handler()
6675 * ufshcd_update_uic_error - check and set fatal UIC error flags.
6676 * @hba: per-adapter instance
6679 * IRQ_HANDLED - If interrupt is valid
6680 * IRQ_NONE - If invalid interrupt
6697 dev_dbg(hba->dev, "%s: UIC Lane error reported\n", in ufshcd_update_uic_error()
6704 hba->uic_error |= UFSHCD_UIC_PA_GENERIC_ERROR; in ufshcd_update_uic_error()
6705 if (hba->uic_async_done && hba->active_uic_cmd) in ufshcd_update_uic_error()
6706 cmd = hba->active_uic_cmd; in ufshcd_update_uic_error()
6711 if (cmd && (cmd->command == UIC_CMD_DME_SET)) in ufshcd_update_uic_error()
6712 hba->uic_error &= ~UFSHCD_UIC_PA_GENERIC_ERROR; in ufshcd_update_uic_error()
6724 hba->uic_error |= UFSHCD_UIC_DL_PA_INIT_ERROR; in ufshcd_update_uic_error()
6725 else if (hba->dev_quirks & in ufshcd_update_uic_error()
6728 hba->uic_error |= in ufshcd_update_uic_error()
6731 hba->uic_error |= UFSHCD_UIC_DL_TCx_REPLAY_ERROR; in ufshcd_update_uic_error()
6741 hba->uic_error |= UFSHCD_UIC_NL_ERROR; in ufshcd_update_uic_error()
6749 hba->uic_error |= UFSHCD_UIC_TL_ERROR; in ufshcd_update_uic_error()
6757 hba->uic_error |= UFSHCD_UIC_DME_ERROR; in ufshcd_update_uic_error()
6761 dev_dbg(hba->dev, "%s: UIC error flags = 0x%08x\n", in ufshcd_update_uic_error()
6762 __func__, hba->uic_error); in ufshcd_update_uic_error()
6767 * ufshcd_check_errors - Check for errors that need s/w attention
6768 * @hba: per-adapter instance
6772 * IRQ_HANDLED - If interrupt is valid
6773 * IRQ_NONE - If invalid interrupt
6780 spin_lock(hba->host->host_lock); in ufshcd_check_errors()
6781 hba->errors |= UFSHCD_ERROR_MASK & intr_status; in ufshcd_check_errors()
6783 if (hba->errors & INT_FATAL_ERRORS) { in ufshcd_check_errors()
6785 hba->errors); in ufshcd_check_errors()
6789 if (hba->errors & UIC_ERROR) { in ufshcd_check_errors()
6790 hba->uic_error = 0; in ufshcd_check_errors()
6792 if (hba->uic_error) in ufshcd_check_errors()
6796 if (hba->errors & UFSHCD_UIC_HIBERN8_MASK) { in ufshcd_check_errors()
6797 dev_err(hba->dev, in ufshcd_check_errors()
6798 "%s: Auto Hibern8 %s failed - status: 0x%08x, upmcrs: 0x%08x\n", in ufshcd_check_errors()
6799 __func__, (hba->errors & UIC_HIBERNATE_ENTER) ? in ufshcd_check_errors()
6801 hba->errors, ufshcd_get_upmcrs(hba)); in ufshcd_check_errors()
6803 hba->errors); in ufshcd_check_errors()
6813 hba->saved_err |= hba->errors; in ufshcd_check_errors()
6814 hba->saved_uic_err |= hba->uic_error; in ufshcd_check_errors()
6817 if ((hba->saved_err & in ufshcd_check_errors()
6819 (hba->saved_uic_err && in ufshcd_check_errors()
6820 (hba->saved_uic_err != UFSHCD_UIC_PA_GENERIC_ERROR))) { in ufshcd_check_errors()
6821 dev_err(hba->dev, "%s: saved_err 0x%x saved_uic_err 0x%x\n", in ufshcd_check_errors()
6822 __func__, hba->saved_err, in ufshcd_check_errors()
6823 hba->saved_uic_err); in ufshcd_check_errors()
6832 * if (!queue_eh_work) - in ufshcd_check_errors()
6833 * Other errors are either non-fatal where host recovers in ufshcd_check_errors()
6837 hba->errors = 0; in ufshcd_check_errors()
6838 hba->uic_error = 0; in ufshcd_check_errors()
6839 spin_unlock(hba->host->host_lock); in ufshcd_check_errors()
6844 * ufshcd_tmc_handler - handle task management function completion
6848 * IRQ_HANDLED - If interrupt is valid
6849 * IRQ_NONE - If invalid interrupt
6857 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_tmc_handler()
6859 issued = hba->outstanding_tasks & ~pending; in ufshcd_tmc_handler()
6860 for_each_set_bit(tag, &issued, hba->nutmrs) { in ufshcd_tmc_handler()
6861 struct request *req = hba->tmf_rqs[tag]; in ufshcd_tmc_handler()
6862 struct completion *c = req->end_io_data; in ufshcd_tmc_handler()
6867 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_tmc_handler()
6873 * ufshcd_handle_mcq_cq_events - handle MCQ completion queue events
6888 outstanding_cqs = (1U << hba->nr_hw_queues) - 1; in ufshcd_handle_mcq_cq_events()
6891 nr_queues = hba->nr_hw_queues - hba->nr_queues[HCTX_TYPE_POLL]; in ufshcd_handle_mcq_cq_events()
6893 hwq = &hba->uhq[i]; in ufshcd_handle_mcq_cq_events()
6907 * ufshcd_sl_intr - Interrupt service routine
6912 * IRQ_HANDLED - If interrupt is valid
6913 * IRQ_NONE - If invalid interrupt
6922 if (intr_status & UFSHCD_ERROR_MASK || hba->errors) in ufshcd_sl_intr()
6938 * ufshcd_intr - Main interrupt service routine
6943 * IRQ_HANDLED - If interrupt is valid
6944 * IRQ_NONE - If invalid interrupt
6951 int retries = hba->nutrs; in ufshcd_intr()
6954 hba->ufs_stats.last_intr_status = intr_status; in ufshcd_intr()
6955 hba->ufs_stats.last_intr_ts = local_clock(); in ufshcd_intr()
6958 * There could be max of hba->nutrs reqs in flight and in worst case in ufshcd_intr()
6963 while (intr_status && retries--) { in ufshcd_intr()
6975 hba->outstanding_reqs) && !ufshcd_eh_in_progress(hba)) { in ufshcd_intr()
6976 dev_err(hba->dev, "%s: Unhandled interrupt 0x%08x (0x%08x, 0x%08x)\n", in ufshcd_intr()
6979 hba->ufs_stats.last_intr_status, in ufshcd_intr()
6992 if (!test_bit(tag, &hba->outstanding_tasks)) in ufshcd_clear_tm_cmd()
7002 dev_err(hba->dev, "Clearing task management function with tag %d %s\n", in ufshcd_clear_tm_cmd()
7012 struct request_queue *q = hba->tmf_queue; in __ufshcd_issue_tm_cmd()
7013 struct Scsi_Host *host = hba->host; in __ufshcd_issue_tm_cmd()
7026 req->end_io_data = &wait; in __ufshcd_issue_tm_cmd()
7029 spin_lock_irqsave(host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7031 task_tag = req->tag; in __ufshcd_issue_tm_cmd()
7032 hba->tmf_rqs[req->tag] = req; in __ufshcd_issue_tm_cmd()
7033 treq->upiu_req.req_header.task_tag = task_tag; in __ufshcd_issue_tm_cmd()
7035 memcpy(hba->utmrdl_base_addr + task_tag, treq, sizeof(*treq)); in __ufshcd_issue_tm_cmd()
7038 __set_bit(task_tag, &hba->outstanding_tasks); in __ufshcd_issue_tm_cmd()
7040 spin_unlock_irqrestore(host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7052 dev_err(hba->dev, "%s: task management cmd 0x%.2x timed-out\n", in __ufshcd_issue_tm_cmd()
7055 dev_WARN(hba->dev, "%s: unable to clear tm cmd (slot %d) after timeout\n", in __ufshcd_issue_tm_cmd()
7057 err = -ETIMEDOUT; in __ufshcd_issue_tm_cmd()
7060 memcpy(treq, hba->utmrdl_base_addr + task_tag, sizeof(*treq)); in __ufshcd_issue_tm_cmd()
7065 spin_lock_irqsave(hba->host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7066 hba->tmf_rqs[req->tag] = NULL; in __ufshcd_issue_tm_cmd()
7067 __clear_bit(task_tag, &hba->outstanding_tasks); in __ufshcd_issue_tm_cmd()
7068 spin_unlock_irqrestore(hba->host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7077 * ufshcd_issue_tm_cmd - issues task management commands to controller
7084 * Return: non-zero value on error, zero on success.
7110 if (err == -ETIMEDOUT) in ufshcd_issue_tm_cmd()
7115 dev_err(hba->dev, "%s: failed, ocs = 0x%x\n", in ufshcd_issue_tm_cmd()
7124 * ufshcd_issue_devman_upiu_cmd - API for sending "utrd" type requests
7125 * @hba: per-adapter instance
7133 * Those type of requests uses UTP Transfer Request Descriptor - utrd.
7138 * the caller is expected to hold the hba->dev_cmd.lock mutex.
7149 const u32 tag = hba->reserved_slot; in ufshcd_issue_devman_upiu_cmd()
7150 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_issue_devman_upiu_cmd()
7154 /* Protects use of hba->reserved_slot. */ in ufshcd_issue_devman_upiu_cmd()
7155 lockdep_assert_held(&hba->dev_cmd.lock); in ufshcd_issue_devman_upiu_cmd()
7162 req_upiu->header.task_tag = tag; in ufshcd_issue_devman_upiu_cmd()
7165 memcpy(lrbp->ucd_req_ptr, req_upiu, sizeof(*lrbp->ucd_req_ptr)); in ufshcd_issue_devman_upiu_cmd()
7171 memcpy(lrbp->ucd_req_ptr + 1, desc_buff, *buff_len); in ufshcd_issue_devman_upiu_cmd()
7175 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_issue_devman_upiu_cmd()
7178 * ignore the returning value here - ufshcd_check_query_response is in ufshcd_issue_devman_upiu_cmd()
7185 memcpy(rsp_upiu, lrbp->ucd_rsp_ptr, sizeof(*rsp_upiu)); in ufshcd_issue_devman_upiu_cmd()
7187 u8 *descp = (u8 *)lrbp->ucd_rsp_ptr + sizeof(*rsp_upiu); in ufshcd_issue_devman_upiu_cmd()
7188 u16 resp_len = be16_to_cpu(lrbp->ucd_rsp_ptr->header in ufshcd_issue_devman_upiu_cmd()
7195 dev_warn(hba->dev, in ufshcd_issue_devman_upiu_cmd()
7199 err = -EINVAL; in ufshcd_issue_devman_upiu_cmd()
7203 (struct utp_upiu_req *)lrbp->ucd_rsp_ptr); in ufshcd_issue_devman_upiu_cmd()
7209 * ufshcd_exec_raw_upiu_cmd - API function for sending raw upiu commands
7210 * @hba: per-adapter instance
7212 * @rsp_upiu: upiu reply - only 8 DW as we do not support scsi commands
7236 u8 tm_f = req_upiu->header.tm_function; in ufshcd_exec_raw_upiu_cmd()
7257 if (err == -ETIMEDOUT) in ufshcd_exec_raw_upiu_cmd()
7262 dev_err(hba->dev, "%s: failed, ocs = 0x%x\n", __func__, in ufshcd_exec_raw_upiu_cmd()
7271 err = -EINVAL; in ufshcd_exec_raw_upiu_cmd()
7280 * ufshcd_advanced_rpmb_req_handler - handle advanced RPMB request
7290 * Return: zero on success, non-zero on failure.
7297 const u32 tag = hba->reserved_slot; in ufshcd_advanced_rpmb_req_handler()
7298 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_advanced_rpmb_req_handler()
7304 int ehs = (hba->capabilities & MASK_EHSLUTRD_SUPPORTED) ? 2 : 0; in ufshcd_advanced_rpmb_req_handler()
7306 /* Protects use of hba->reserved_slot. */ in ufshcd_advanced_rpmb_req_handler()
7314 req_upiu->header.task_tag = tag; in ufshcd_advanced_rpmb_req_handler()
7317 memcpy(lrbp->ucd_req_ptr, req_upiu, sizeof(*lrbp->ucd_req_ptr)); in ufshcd_advanced_rpmb_req_handler()
7319 memcpy(lrbp->ucd_req_ptr + 1, req_ehs, sizeof(*req_ehs)); in ufshcd_advanced_rpmb_req_handler()
7324 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_advanced_rpmb_req_handler()
7330 memcpy(rsp_upiu, lrbp->ucd_rsp_ptr, sizeof(*rsp_upiu)); in ufshcd_advanced_rpmb_req_handler()
7332 result = (lrbp->ucd_rsp_ptr->header.response << 8) | in ufshcd_advanced_rpmb_req_handler()
7333 lrbp->ucd_rsp_ptr->header.status; in ufshcd_advanced_rpmb_req_handler()
7335 ehs_len = lrbp->ucd_rsp_ptr->header.ehs_length; in ufshcd_advanced_rpmb_req_handler()
7346 ehs_data = (u8 *)lrbp->ucd_rsp_ptr + EHS_OFFSET_IN_RESPONSE; in ufshcd_advanced_rpmb_req_handler()
7357 * ufshcd_eh_device_reset_handler() - Reset a single logical unit.
7373 host = cmd->device->host; in ufshcd_eh_device_reset_handler()
7376 lun = ufshcd_scsi_to_upiu_lun(cmd->device->lun); in ufshcd_eh_device_reset_handler()
7384 if (hba->mcq_enabled) { in ufshcd_eh_device_reset_handler()
7385 for (pos = 0; pos < hba->nutrs; pos++) { in ufshcd_eh_device_reset_handler()
7386 lrbp = &hba->lrb[pos]; in ufshcd_eh_device_reset_handler()
7387 if (ufshcd_cmd_inflight(lrbp->cmd) && in ufshcd_eh_device_reset_handler()
7388 lrbp->lun == lun) { in ufshcd_eh_device_reset_handler()
7390 hwq = ufshcd_mcq_req_to_hwq(hba, scsi_cmd_to_rq(lrbp->cmd)); in ufshcd_eh_device_reset_handler()
7399 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7400 for_each_set_bit(pos, &hba->outstanding_reqs, hba->nutrs) in ufshcd_eh_device_reset_handler()
7401 if (hba->lrb[pos].lun == lun) in ufshcd_eh_device_reset_handler()
7403 hba->outstanding_reqs &= ~pending_reqs; in ufshcd_eh_device_reset_handler()
7404 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7406 for_each_set_bit(pos, &pending_reqs, hba->nutrs) { in ufshcd_eh_device_reset_handler()
7408 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7411 hba->outstanding_reqs |= not_cleared; in ufshcd_eh_device_reset_handler()
7413 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7415 dev_err(hba->dev, "%s: failed to clear request %d\n", in ufshcd_eh_device_reset_handler()
7422 hba->req_abort_count = 0; in ufshcd_eh_device_reset_handler()
7427 dev_err(hba->dev, "%s: failed with err %d\n", __func__, err); in ufshcd_eh_device_reset_handler()
7438 for_each_set_bit(tag, &bitmap, hba->nutrs) { in ufshcd_set_req_abort_skip()
7439 lrbp = &hba->lrb[tag]; in ufshcd_set_req_abort_skip()
7440 lrbp->req_abort_skip = true; in ufshcd_set_req_abort_skip()
7445 * ufshcd_try_to_abort_task - abort a specific task
7450 * command, and in host controller by clearing the door-bell register. There can
7455 * Return: zero on success, non-zero on failure.
7459 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_try_to_abort_task()
7464 for (poll_cnt = 100; poll_cnt; poll_cnt--) { in ufshcd_try_to_abort_task()
7465 err = ufshcd_issue_tm_cmd(hba, lrbp->lun, lrbp->task_tag, in ufshcd_try_to_abort_task()
7469 dev_err(hba->dev, "%s: cmd pending in the device. tag = %d\n", in ufshcd_try_to_abort_task()
7478 hba->dev, in ufshcd_try_to_abort_task()
7481 if (!ufshcd_cmd_inflight(lrbp->cmd)) { in ufshcd_try_to_abort_task()
7482 dev_info(hba->dev, in ufshcd_try_to_abort_task()
7489 dev_err(hba->dev, in ufshcd_try_to_abort_task()
7497 return -EBUSY; in ufshcd_try_to_abort_task()
7499 err = ufshcd_issue_tm_cmd(hba, lrbp->lun, lrbp->task_tag, in ufshcd_try_to_abort_task()
7504 dev_err(hba->dev, "%s: issued. tag = %d, err %d\n", in ufshcd_try_to_abort_task()
7512 dev_err(hba->dev, "%s: Failed clearing cmd at tag %d, err %d\n", in ufshcd_try_to_abort_task()
7519 * ufshcd_abort - scsi host template eh_abort_handler callback
7526 struct Scsi_Host *host = cmd->device->host; in ufshcd_abort()
7528 int tag = scsi_cmd_to_rq(cmd)->tag; in ufshcd_abort()
7529 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_abort()
7537 if (!hba->mcq_enabled) { in ufshcd_abort()
7539 if (!test_bit(tag, &hba->outstanding_reqs)) { in ufshcd_abort()
7541 dev_err(hba->dev, in ufshcd_abort()
7543 __func__, tag, hba->outstanding_reqs, reg); in ufshcd_abort()
7549 dev_info(hba->dev, "%s: Device abort task at tag %d\n", __func__, tag); in ufshcd_abort()
7559 if (!hba->req_abort_count) { in ufshcd_abort()
7568 hba->req_abort_count++; in ufshcd_abort()
7570 if (!hba->mcq_enabled && !(reg & (1 << tag))) { in ufshcd_abort()
7572 dev_err(hba->dev, in ufshcd_abort()
7580 * Task abort to the device W-LUN is illegal. When this command in ufshcd_abort()
7584 * the lrb taken by this cmd and re-set it in outstanding_reqs, in ufshcd_abort()
7587 if (lrbp->lun == UFS_UPIU_UFS_DEVICE_WLUN) { in ufshcd_abort()
7588 ufshcd_update_evt_hist(hba, UFS_EVT_ABORT, lrbp->lun); in ufshcd_abort()
7590 spin_lock_irqsave(host->host_lock, flags); in ufshcd_abort()
7591 hba->force_reset = true; in ufshcd_abort()
7593 spin_unlock_irqrestore(host->host_lock, flags); in ufshcd_abort()
7597 if (hba->mcq_enabled) { in ufshcd_abort()
7604 if (lrbp->req_abort_skip) { in ufshcd_abort()
7605 dev_err(hba->dev, "%s: skipping abort\n", __func__); in ufshcd_abort()
7606 ufshcd_set_req_abort_skip(hba, hba->outstanding_reqs); in ufshcd_abort()
7612 dev_err(hba->dev, "%s: failed with err %d\n", __func__, err); in ufshcd_abort()
7613 ufshcd_set_req_abort_skip(hba, hba->outstanding_reqs); in ufshcd_abort()
7622 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_abort()
7623 outstanding = __test_and_clear_bit(tag, &hba->outstanding_reqs); in ufshcd_abort()
7624 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_abort()
7638 * ufshcd_process_probe_result - Process the ufshcd_probe_hba() result.
7648 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_process_probe_result()
7650 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_process_probe_result()
7651 else if (hba->ufshcd_state == UFSHCD_STATE_RESET) in ufshcd_process_probe_result()
7652 hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; in ufshcd_process_probe_result()
7653 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_process_probe_result()
7655 trace_ufshcd_init(dev_name(hba->dev), ret, in ufshcd_process_probe_result()
7657 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_process_probe_result()
7661 * ufshcd_host_reset_and_restore - reset and restore host controller
7662 * @hba: per-adapter instance
7665 * local and remote (device) Uni-Pro stack and the attributes
7668 * Return: zero on success, non-zero on failure.
7679 hba->silence_err_logs = true; in ufshcd_host_reset_and_restore()
7681 hba->silence_err_logs = false; in ufshcd_host_reset_and_restore()
7699 dev_err(hba->dev, "%s: Host init failed %d\n", __func__, err); in ufshcd_host_reset_and_restore()
7705 * ufshcd_reset_and_restore - reset and re-initialize host/device
7706 * @hba: per-adapter instance
7708 * Reset and recover device, host and re-establish link. This
7711 * Return: zero on success, non-zero on failure.
7721 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7727 saved_err |= hba->saved_err; in ufshcd_reset_and_restore()
7728 saved_uic_err |= hba->saved_uic_err; in ufshcd_reset_and_restore()
7729 hba->saved_err = 0; in ufshcd_reset_and_restore()
7730 hba->saved_uic_err = 0; in ufshcd_reset_and_restore()
7731 hba->force_reset = false; in ufshcd_reset_and_restore()
7732 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_reset_and_restore()
7733 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7740 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7744 if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL && in ufshcd_reset_and_restore()
7745 hba->ufshcd_state != UFSHCD_STATE_ERROR && in ufshcd_reset_and_restore()
7746 hba->ufshcd_state != UFSHCD_STATE_EH_SCHEDULED_NON_FATAL) in ufshcd_reset_and_restore()
7747 err = -EAGAIN; in ufshcd_reset_and_restore()
7748 } while (err && --retries); in ufshcd_reset_and_restore()
7751 * Inform scsi mid-layer that we did reset and allow to handle in ufshcd_reset_and_restore()
7754 scsi_report_bus_reset(hba->host, 0); in ufshcd_reset_and_restore()
7756 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_reset_and_restore()
7757 hba->saved_err |= saved_err; in ufshcd_reset_and_restore()
7758 hba->saved_uic_err |= saved_uic_err; in ufshcd_reset_and_restore()
7760 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7766 * ufshcd_eh_host_reset_handler - host reset handler registered to scsi layer
7777 hba = shost_priv(cmd->device->host); in ufshcd_eh_host_reset_handler()
7781 * stuck in this function waiting for flush_work(&hba->eh_work). And in ufshcd_eh_host_reset_handler()
7785 if (hba->pm_op_in_progress) { in ufshcd_eh_host_reset_handler()
7792 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7793 hba->force_reset = true; in ufshcd_eh_host_reset_handler()
7795 dev_err(hba->dev, "%s: reset in progress - 1\n", __func__); in ufshcd_eh_host_reset_handler()
7796 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7798 flush_work(&hba->eh_work); in ufshcd_eh_host_reset_handler()
7800 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7801 if (hba->ufshcd_state == UFSHCD_STATE_ERROR) in ufshcd_eh_host_reset_handler()
7803 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7809 * ufshcd_get_max_icc_level - calculate the ICC level
7824 for (i = start_scan; i >= 0; i--) { in ufshcd_get_max_icc_level()
7855 * ufshcd_find_max_sup_active_icc_level - calculate the max ICC level
7857 * @hba: per-adapter instance
7867 if (!hba->vreg_info.vcc || !hba->vreg_info.vccq || in ufshcd_find_max_sup_active_icc_level()
7868 !hba->vreg_info.vccq2) { in ufshcd_find_max_sup_active_icc_level()
7871 * never-ending cycles of messages written back to storage by in ufshcd_find_max_sup_active_icc_level()
7875 dev_dbg(hba->dev, in ufshcd_find_max_sup_active_icc_level()
7881 if (hba->vreg_info.vcc->max_uA) in ufshcd_find_max_sup_active_icc_level()
7883 hba->vreg_info.vcc->max_uA, in ufshcd_find_max_sup_active_icc_level()
7884 POWER_DESC_MAX_ACTV_ICC_LVLS - 1, in ufshcd_find_max_sup_active_icc_level()
7887 if (hba->vreg_info.vccq->max_uA) in ufshcd_find_max_sup_active_icc_level()
7889 hba->vreg_info.vccq->max_uA, in ufshcd_find_max_sup_active_icc_level()
7893 if (hba->vreg_info.vccq2->max_uA) in ufshcd_find_max_sup_active_icc_level()
7895 hba->vreg_info.vccq2->max_uA, in ufshcd_find_max_sup_active_icc_level()
7915 dev_err(hba->dev, in ufshcd_set_active_icc_lvl()
7922 dev_dbg(hba->dev, "%s: setting icc_level 0x%x", __func__, icc_level); in ufshcd_set_active_icc_lvl()
7928 dev_err(hba->dev, in ufshcd_set_active_icc_lvl()
7938 struct Scsi_Host *shost = sdev->host; in ufshcd_blk_pm_runtime_init()
7941 blk_pm_runtime_init(sdev->request_queue, &sdev->sdev_gendev); in ufshcd_blk_pm_runtime_init()
7942 if (sdev->rpm_autosuspend) in ufshcd_blk_pm_runtime_init()
7943 pm_runtime_set_autosuspend_delay(&sdev->sdev_gendev, in ufshcd_blk_pm_runtime_init()
7944 shost->rpm_autosuspend_delay); in ufshcd_blk_pm_runtime_init()
7949 * ufshcd_scsi_add_wlus - Adds required W-LUs
7950 * @hba: per-adapter instance
7971 * Return: zero on success (all required W-LUs are added successfully),
7972 * non-zero error value on failure (if failed to add any of the required W-LU).
7979 hba->ufs_device_wlun = __scsi_add_device(hba->host, 0, 0, in ufshcd_scsi_add_wlus()
7981 if (IS_ERR(hba->ufs_device_wlun)) { in ufshcd_scsi_add_wlus()
7982 ret = PTR_ERR(hba->ufs_device_wlun); in ufshcd_scsi_add_wlus()
7983 hba->ufs_device_wlun = NULL; in ufshcd_scsi_add_wlus()
7986 scsi_device_put(hba->ufs_device_wlun); in ufshcd_scsi_add_wlus()
7988 sdev_rpmb = __scsi_add_device(hba->host, 0, 0, in ufshcd_scsi_add_wlus()
7997 sdev_boot = __scsi_add_device(hba->host, 0, 0, in ufshcd_scsi_add_wlus()
8000 dev_err(hba->dev, "%s: BOOT WLUN not found\n", __func__); in ufshcd_scsi_add_wlus()
8008 scsi_remove_device(hba->ufs_device_wlun); in ufshcd_scsi_add_wlus()
8015 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_wb_probe()
8024 * Probe WB only for UFS-2.2 and UFS-3.1 (and later) devices or in ufshcd_wb_probe()
8028 if (!(dev_info->wspecversion >= 0x310 || in ufshcd_wb_probe()
8029 dev_info->wspecversion == 0x220 || in ufshcd_wb_probe()
8030 (hba->dev_quirks & UFS_DEVICE_QUIRK_SUPPORT_EXTENDED_FEATURES))) in ufshcd_wb_probe()
8044 dev_info->wb_buffer_type = desc_buf[DEVICE_DESC_PARAM_WB_TYPE]; in ufshcd_wb_probe()
8046 dev_info->b_presrv_uspc_en = in ufshcd_wb_probe()
8049 if (dev_info->wb_buffer_type == WB_BUF_MODE_SHARED) { in ufshcd_wb_probe()
8062 dev_info->wb_dedicated_lu = lun; in ufshcd_wb_probe()
8077 hba->caps &= ~UFSHCD_CAP_WB_EN; in ufshcd_wb_probe()
8082 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_temp_notif_probe()
8086 if (!(hba->caps & UFSHCD_CAP_TEMP_NOTIF) || dev_info->wspecversion < 0x300) in ufshcd_temp_notif_probe()
8105 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_set_rtt()
8108 int host_rtt_cap = hba->vops && hba->vops->max_num_rtt ? in ufshcd_set_rtt()
8109 hba->vops->max_num_rtt : hba->nortt; in ufshcd_set_rtt()
8111 /* RTT override makes sense only for UFS-4.0 and above */ in ufshcd_set_rtt()
8112 if (dev_info->wspecversion < 0x400) in ufshcd_set_rtt()
8117 dev_err(hba->dev, "failed reading bMaxNumOfRTT\n"); in ufshcd_set_rtt()
8125 rtt = min_t(int, dev_info->rtt_cap, host_rtt_cap); in ufshcd_set_rtt()
8132 dev_err(hba->dev, "failed writing bMaxNumOfRTT\n"); in ufshcd_set_rtt()
8139 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_fixup_dev_quirks()
8144 for (f = fixups; f->quirk; f++) { in ufshcd_fixup_dev_quirks()
8145 if ((f->wmanufacturerid == dev_info->wmanufacturerid || in ufshcd_fixup_dev_quirks()
8146 f->wmanufacturerid == UFS_ANY_VENDOR) && in ufshcd_fixup_dev_quirks()
8147 ((dev_info->model && in ufshcd_fixup_dev_quirks()
8148 STR_PRFX_EQUAL(f->model, dev_info->model)) || in ufshcd_fixup_dev_quirks()
8149 !strcmp(f->model, UFS_ANY_MODEL))) in ufshcd_fixup_dev_quirks()
8150 hba->dev_quirks |= f->quirk; in ufshcd_fixup_dev_quirks()
8172 if (ts64.tv_sec < hba->dev_info.rtc_time_baseline) { in ufshcd_update_rtc()
8173 dev_warn_once(hba->dev, "%s: Current time precedes previous setting!\n", __func__); in ufshcd_update_rtc()
8178 * The Absolute RTC mode has a 136-year limit, spanning from 2010 to 2146. If a time beyond in ufshcd_update_rtc()
8181 val = ts64.tv_sec - hba->dev_info.rtc_time_baseline; in ufshcd_update_rtc()
8192 dev_err(hba->dev, "%s: Failed to update rtc %d\n", __func__, err); in ufshcd_update_rtc()
8193 else if (hba->dev_info.rtc_type == UFS_RTC_RELATIVE) in ufshcd_update_rtc()
8194 hba->dev_info.rtc_time_baseline = ts64.tv_sec; in ufshcd_update_rtc()
8205 hba->ufshcd_state == UFSHCD_STATE_OPERATIONAL && in ufshcd_rtc_work()
8206 !hba->clk_gating.active_reqs) in ufshcd_rtc_work()
8209 if (ufshcd_is_ufs_dev_active(hba) && hba->dev_info.rtc_update_period) in ufshcd_rtc_work()
8210 schedule_delayed_work(&hba->ufs_rtc_update_work, in ufshcd_rtc_work()
8211 msecs_to_jiffies(hba->dev_info.rtc_update_period)); in ufshcd_rtc_work()
8217 struct ufs_dev_info *dev_info = &hba->dev_info; in ufs_init_rtc()
8220 dev_info->rtc_type = UFS_RTC_ABSOLUTE; in ufs_init_rtc()
8227 dev_info->rtc_time_baseline = mktime64(2010, 1, 1, 0, 0, 0) - in ufs_init_rtc()
8230 dev_info->rtc_type = UFS_RTC_RELATIVE; in ufs_init_rtc()
8231 dev_info->rtc_time_baseline = 0; in ufs_init_rtc()
8239 dev_info->rtc_update_period = 0; in ufs_init_rtc()
8247 struct ufs_dev_info *dev_info = &hba->dev_info; in ufs_get_device_desc()
8251 err = -ENOMEM; in ufs_get_device_desc()
8258 dev_err(hba->dev, "%s: Failed reading Device Desc. err = %d\n", in ufs_get_device_desc()
8267 dev_info->wmanufacturerid = desc_buf[DEVICE_DESC_PARAM_MANF_ID] << 8 | in ufs_get_device_desc()
8271 dev_info->wspecversion = desc_buf[DEVICE_DESC_PARAM_SPEC_VER] << 8 | in ufs_get_device_desc()
8273 dev_info->bqueuedepth = desc_buf[DEVICE_DESC_PARAM_Q_DPTH]; in ufs_get_device_desc()
8275 dev_info->rtt_cap = desc_buf[DEVICE_DESC_PARAM_RTT_CAP]; in ufs_get_device_desc()
8280 &dev_info->model, SD_ASCII_STD); in ufs_get_device_desc()
8282 dev_err(hba->dev, "%s: Failed reading Product Name. err = %d\n", in ufs_get_device_desc()
8287 hba->luns_avail = desc_buf[DEVICE_DESC_PARAM_NUM_LU] + in ufs_get_device_desc()
8311 struct ufs_dev_info *dev_info = &hba->dev_info; in ufs_put_device_desc()
8313 kfree(dev_info->model); in ufs_put_device_desc()
8314 dev_info->model = NULL; in ufs_put_device_desc()
8318 * ufshcd_quirk_tune_host_pa_tactivate - Ensures that host PA_TACTIVATE is
8320 * @hba: per-adapter instance
8326 * Return: zero on success, non-zero error value on failure.
8348 dev_err(hba->dev, "%s: invalid host PA_GRANULARITY %d", in ufshcd_quirk_tune_host_pa_tactivate()
8350 return -EINVAL; in ufshcd_quirk_tune_host_pa_tactivate()
8355 dev_err(hba->dev, "%s: invalid device PA_GRANULARITY %d", in ufshcd_quirk_tune_host_pa_tactivate()
8357 return -EINVAL; in ufshcd_quirk_tune_host_pa_tactivate()
8369 pa_tactivate_us = pa_tactivate * gran_to_us_table[granularity - 1]; in ufshcd_quirk_tune_host_pa_tactivate()
8371 gran_to_us_table[peer_granularity - 1]; in ufshcd_quirk_tune_host_pa_tactivate()
8377 gran_to_us_table[peer_granularity - 1]; in ufshcd_quirk_tune_host_pa_tactivate()
8391 if (hba->dev_quirks & UFS_DEVICE_QUIRK_PA_TACTIVATE) in ufshcd_tune_unipro_params()
8395 if (hba->dev_quirks & UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE) in ufshcd_tune_unipro_params()
8401 hba->ufs_stats.hibern8_exit_cnt = 0; in ufshcd_clear_dbg_ufs_stats()
8402 hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); in ufshcd_clear_dbg_ufs_stats()
8403 hba->req_abort_count = 0; in ufshcd_clear_dbg_ufs_stats()
8413 err = -ENOMEM; in ufshcd_device_geo_params_init()
8420 dev_err(hba->dev, "%s: Failed reading Geometry Desc. err = %d\n", in ufshcd_device_geo_params_init()
8426 hba->dev_info.max_lu_supported = 32; in ufshcd_device_geo_params_init()
8428 hba->dev_info.max_lu_supported = 8; in ufshcd_device_geo_params_init()
8466 hba->dev_ref_clk_freq = in ufshcd_parse_dev_ref_clk_freq()
8469 if (hba->dev_ref_clk_freq == REF_CLK_FREQ_INVAL) in ufshcd_parse_dev_ref_clk_freq()
8470 dev_err(hba->dev, in ufshcd_parse_dev_ref_clk_freq()
8478 u32 freq = hba->dev_ref_clk_freq; in ufshcd_set_dev_ref_clk()
8484 dev_err(hba->dev, "failed reading bRefClkFreq. err = %d\n", in ufshcd_set_dev_ref_clk()
8496 dev_err(hba->dev, "bRefClkFreq setting to %lu Hz failed\n", in ufshcd_set_dev_ref_clk()
8501 dev_dbg(hba->dev, "bRefClkFreq setting to %lu Hz succeeded\n", in ufshcd_set_dev_ref_clk()
8521 dev_err(hba->dev, "%s: Failed getting device info. err = %d\n", in ufshcd_device_params_init()
8532 hba->dev_info.f_power_on_wp_en = flag; in ufshcd_device_params_init()
8534 /* Probe maximum power mode co-supported by both UFS host and device */ in ufshcd_device_params_init()
8536 dev_err(hba->dev, in ufshcd_device_params_init()
8548 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_set_timestamp_attr()
8551 if (dev_info->wspecversion < 0x400) in ufshcd_set_timestamp_attr()
8560 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in ufshcd_set_timestamp_attr()
8562 upiu_data = (struct utp_upiu_query_v4_0 *)&request->upiu_req; in ufshcd_set_timestamp_attr()
8564 put_unaligned_be64(ktime_get_real_ns(), &upiu_data->osf3); in ufshcd_set_timestamp_attr()
8569 dev_err(hba->dev, "%s: failed to set timestamp %d\n", in ufshcd_set_timestamp_attr()
8576 * ufshcd_add_lus - probe and add UFS logical units
8577 * @hba: per-adapter instance
8592 memcpy(&hba->clk_scaling.saved_pwr_info, in ufshcd_add_lus()
8593 &hba->pwr_info, in ufshcd_add_lus()
8595 hba->clk_scaling.is_allowed = true; in ufshcd_add_lus()
8601 hba->clk_scaling.is_enabled = true; in ufshcd_add_lus()
8606 * The RTC update code accesses the hba->ufs_device_wlun->sdev_gendev in ufshcd_add_lus()
8610 schedule_delayed_work(&hba->ufs_rtc_update_work, in ufshcd_add_lus()
8614 scsi_scan_host(hba->host); in ufshcd_add_lus()
8620 /* SDB - Single Doorbell */
8626 dmam_free_coherent(hba->dev, ucdl_size, hba->ucdl_base_addr, in ufshcd_release_sdb_queue()
8627 hba->ucdl_dma_addr); in ufshcd_release_sdb_queue()
8630 dmam_free_coherent(hba->dev, utrdl_size, hba->utrdl_base_addr, in ufshcd_release_sdb_queue()
8631 hba->utrdl_dma_addr); in ufshcd_release_sdb_queue()
8633 devm_kfree(hba->dev, hba->lrb); in ufshcd_release_sdb_queue()
8639 int old_nutrs = hba->nutrs; in ufshcd_alloc_mcq()
8645 hba->nutrs = ret; in ufshcd_alloc_mcq()
8654 if (hba->nutrs != old_nutrs) { in ufshcd_alloc_mcq()
8666 hba->host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_alloc_mcq()
8667 hba->reserved_slot = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_alloc_mcq()
8671 hba->nutrs = old_nutrs; in ufshcd_alloc_mcq()
8681 dev_info(hba->dev, "ESI %sconfigured\n", ret ? "is not " : ""); in ufshcd_config_mcq()
8684 if (hba->quirks & UFSHCD_QUIRK_MCQ_BROKEN_INTR) in ufshcd_config_mcq()
8688 ufshcd_mcq_config_mac(hba, hba->nutrs); in ufshcd_config_mcq()
8690 …dev_info(hba->dev, "MCQ configured, nr_queues=%d, io_queues=%d, read_queue=%d, poll_queues=%d, que… in ufshcd_config_mcq()
8691 hba->nr_hw_queues, hba->nr_queues[HCTX_TYPE_DEFAULT], in ufshcd_config_mcq()
8692 hba->nr_queues[HCTX_TYPE_READ], hba->nr_queues[HCTX_TYPE_POLL], in ufshcd_config_mcq()
8693 hba->nutrs); in ufshcd_config_mcq()
8708 if (!hba->max_pwr_info.is_valid) in ufshcd_post_device_init()
8715 if (hba->dev_ref_clk_freq != REF_CLK_FREQ_INVAL) in ufshcd_post_device_init()
8718 ret = ufshcd_config_pwr_mode(hba, &hba->max_pwr_info.info); in ufshcd_post_device_init()
8720 dev_err(hba->dev, "%s: Failed setting power mode, err = %d\n", in ufshcd_post_device_init()
8732 WARN_ON_ONCE(!hba->scsi_host_added); in ufshcd_device_init()
8734 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_device_init()
8740 if (hba->quirks & UFSHCD_QUIRK_SKIP_PH_CONFIGURATION) in ufshcd_device_init()
8750 if (hba->mcq_enabled && !init_dev_params) { in ufshcd_device_init()
8774 hba->quirks & UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH) { in ufshcd_device_init()
8784 * ufshcd_probe_hba - probe hba to detect device and initialize it
8785 * @hba: per-adapter instance
8788 * Execute link-startup and verify device initialization
8796 if (!hba->pm_op_in_progress && in ufshcd_probe_hba()
8797 (hba->quirks & UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH)) { in ufshcd_probe_hba()
8804 dev_err(hba->dev, "Host controller enable failed\n"); in ufshcd_probe_hba()
8826 /* Enable UFS Write Booster if supported */ in ufshcd_probe_hba()
8829 if (hba->ee_usr_mask) in ufshcd_probe_hba()
8837 * ufshcd_async_scan - asynchronous execution for probing hba
8847 down(&hba->host_sem); in ufshcd_async_scan()
8852 up(&hba->host_sem); in ufshcd_async_scan()
8860 pm_runtime_put_sync(hba->dev); in ufshcd_async_scan()
8863 dev_err(hba->dev, "%s failed: %d\n", __func__, ret); in ufshcd_async_scan()
8868 struct ufs_hba *hba = shost_priv(scmd->device->host); in ufshcd_eh_timed_out()
8870 if (!hba->system_suspending) { in ufshcd_eh_timed_out()
8882 dev_info(hba->dev, "%s() finished; outstanding_tasks = %#lx.\n", in ufshcd_eh_timed_out()
8883 __func__, hba->outstanding_tasks); in ufshcd_eh_timed_out()
8885 return scsi_host_busy(hba->host) ? SCSI_EH_RESET_TIMER : SCSI_EH_DONE; in ufshcd_eh_timed_out()
8919 .this_id = -1,
8943 if (!vreg->max_uA) in ufshcd_config_vreg_load()
8946 ret = regulator_set_load(vreg->reg, ua); in ufshcd_config_vreg_load()
8949 __func__, vreg->name, ua, ret); in ufshcd_config_vreg_load()
8958 return ufshcd_config_vreg_load(hba->dev, vreg, UFS_VREG_LPM_LOAD_UA); in ufshcd_config_vreg_lpm()
8967 return ufshcd_config_vreg_load(hba->dev, vreg, vreg->max_uA); in ufshcd_config_vreg_hpm()
8973 if (regulator_count_voltages(vreg->reg) <= 0) in ufshcd_config_vreg()
8976 return ufshcd_config_vreg_load(dev, vreg, on ? vreg->max_uA : 0); in ufshcd_config_vreg()
8983 if (!vreg || vreg->enabled) in ufshcd_enable_vreg()
8988 ret = regulator_enable(vreg->reg); in ufshcd_enable_vreg()
8991 vreg->enabled = true; in ufshcd_enable_vreg()
8994 __func__, vreg->name, ret); in ufshcd_enable_vreg()
9003 if (!vreg || !vreg->enabled || vreg->always_on) in ufshcd_disable_vreg()
9006 ret = regulator_disable(vreg->reg); in ufshcd_disable_vreg()
9011 vreg->enabled = false; in ufshcd_disable_vreg()
9014 __func__, vreg->name, ret); in ufshcd_disable_vreg()
9023 struct device *dev = hba->dev; in ufshcd_setup_vreg()
9024 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_setup_vreg()
9026 ret = ufshcd_toggle_vreg(dev, info->vcc, on); in ufshcd_setup_vreg()
9030 ret = ufshcd_toggle_vreg(dev, info->vccq, on); in ufshcd_setup_vreg()
9034 ret = ufshcd_toggle_vreg(dev, info->vccq2, on); in ufshcd_setup_vreg()
9038 ufshcd_toggle_vreg(dev, info->vccq2, false); in ufshcd_setup_vreg()
9039 ufshcd_toggle_vreg(dev, info->vccq, false); in ufshcd_setup_vreg()
9040 ufshcd_toggle_vreg(dev, info->vcc, false); in ufshcd_setup_vreg()
9047 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_setup_hba_vreg()
9049 return ufshcd_toggle_vreg(hba->dev, info->vdd_hba, on); in ufshcd_setup_hba_vreg()
9059 vreg->reg = devm_regulator_get(dev, vreg->name); in ufshcd_get_vreg()
9060 if (IS_ERR(vreg->reg)) { in ufshcd_get_vreg()
9061 ret = PTR_ERR(vreg->reg); in ufshcd_get_vreg()
9063 __func__, vreg->name, ret); in ufshcd_get_vreg()
9073 struct device *dev = hba->dev; in ufshcd_init_vreg()
9074 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_init_vreg()
9076 ret = ufshcd_get_vreg(dev, info->vcc); in ufshcd_init_vreg()
9080 ret = ufshcd_get_vreg(dev, info->vccq); in ufshcd_init_vreg()
9082 ret = ufshcd_get_vreg(dev, info->vccq2); in ufshcd_init_vreg()
9089 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_init_hba_vreg()
9091 return ufshcd_get_vreg(hba->dev, info->vdd_hba); in ufshcd_init_hba_vreg()
9098 struct list_head *head = &hba->clk_list_head; in ufshcd_setup_clocks()
9110 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_setup_clocks()
9116 clki->keep_link_active) in ufshcd_setup_clocks()
9119 clk_state_changed = on ^ clki->enabled; in ufshcd_setup_clocks()
9120 if (on && !clki->enabled) { in ufshcd_setup_clocks()
9121 ret = clk_prepare_enable(clki->clk); in ufshcd_setup_clocks()
9123 dev_err(hba->dev, "%s: %s prepare enable failed, %d\n", in ufshcd_setup_clocks()
9124 __func__, clki->name, ret); in ufshcd_setup_clocks()
9127 } else if (!on && clki->enabled) { in ufshcd_setup_clocks()
9128 clk_disable_unprepare(clki->clk); in ufshcd_setup_clocks()
9130 clki->enabled = on; in ufshcd_setup_clocks()
9131 dev_dbg(hba->dev, "%s: clk: %s %sabled\n", __func__, in ufshcd_setup_clocks()
9132 clki->name, on ? "en" : "dis"); in ufshcd_setup_clocks()
9145 if (!IS_ERR_OR_NULL(clki->clk) && clki->enabled) in ufshcd_setup_clocks()
9146 clk_disable_unprepare(clki->clk); in ufshcd_setup_clocks()
9148 } else if (!ret && on && hba->clk_gating.is_initialized) { in ufshcd_setup_clocks()
9149 scoped_guard(spinlock_irqsave, &hba->clk_gating.lock) in ufshcd_setup_clocks()
9150 hba->clk_gating.state = CLKS_ON; in ufshcd_setup_clocks()
9151 trace_ufshcd_clk_gating(dev_name(hba->dev), in ufshcd_setup_clocks()
9152 hba->clk_gating.state); in ufshcd_setup_clocks()
9156 trace_ufshcd_profile_clk_gating(dev_name(hba->dev), in ufshcd_setup_clocks()
9165 int ret = device_property_read_u32(hba->dev, "ref-clk-freq", &freq); in ufshcd_parse_ref_clk_property()
9168 dev_dbg(hba->dev, "Cannot query 'ref-clk-freq' property = %d", ret); in ufshcd_parse_ref_clk_property()
9179 struct device *dev = hba->dev; in ufshcd_init_clocks()
9180 struct list_head *head = &hba->clk_list_head; in ufshcd_init_clocks()
9186 if (!clki->name) in ufshcd_init_clocks()
9189 clki->clk = devm_clk_get(dev, clki->name); in ufshcd_init_clocks()
9190 if (IS_ERR(clki->clk)) { in ufshcd_init_clocks()
9191 ret = PTR_ERR(clki->clk); in ufshcd_init_clocks()
9193 __func__, clki->name, ret); in ufshcd_init_clocks()
9202 if (!strcmp(clki->name, "ref_clk")) in ufshcd_init_clocks()
9203 ufshcd_parse_dev_ref_clk_freq(hba, clki->clk); in ufshcd_init_clocks()
9205 if (clki->max_freq) { in ufshcd_init_clocks()
9206 ret = clk_set_rate(clki->clk, clki->max_freq); in ufshcd_init_clocks()
9208 dev_err(hba->dev, "%s: %s clk set rate(%dHz) failed, %d\n", in ufshcd_init_clocks()
9209 __func__, clki->name, in ufshcd_init_clocks()
9210 clki->max_freq, ret); in ufshcd_init_clocks()
9213 clki->curr_freq = clki->max_freq; in ufshcd_init_clocks()
9216 clki->name, clk_get_rate(clki->clk)); in ufshcd_init_clocks()
9220 if (hba->use_pm_opp) { in ufshcd_init_clocks()
9223 dev_err(hba->dev, "%s: failed to set OPP: %d", __func__, in ufshcd_init_clocks()
9237 if (!hba->vops) in ufshcd_variant_hba_init()
9242 dev_err_probe(hba->dev, err, in ufshcd_variant_hba_init()
9251 if (!hba->vops) in ufshcd_variant_hba_exit()
9280 if (hba->dev_ref_clk_freq == REF_CLK_FREQ_INVAL) in ufshcd_hba_init()
9281 hba->dev_ref_clk_freq = ufshcd_parse_ref_clk_property(hba); in ufshcd_hba_init()
9302 hba->is_powered = true; in ufshcd_hba_init()
9317 if (hba->is_powered) { in ufshcd_hba_exit()
9321 if (hba->eh_wq) in ufshcd_hba_exit()
9322 destroy_workqueue(hba->eh_wq); in ufshcd_hba_exit()
9328 hba->is_powered = false; in ufshcd_hba_exit()
9360 * ufshcd_set_dev_pwr_mode - sends START STOP UNIT command to set device
9376 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_set_dev_pwr_mode()
9377 sdp = hba->ufs_device_wlun; in ufshcd_set_dev_pwr_mode()
9381 ret = -ENODEV; in ufshcd_set_dev_pwr_mode()
9382 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_set_dev_pwr_mode()
9388 * If scsi commands fail, the scsi mid-layer schedules scsi error- in ufshcd_set_dev_pwr_mode()
9393 hba->host->eh_noresume = 1; in ufshcd_set_dev_pwr_mode()
9408 ret = -EIO; in ufshcd_set_dev_pwr_mode()
9411 hba->curr_dev_pwr_mode = pwr_mode; in ufshcd_set_dev_pwr_mode()
9415 hba->host->eh_noresume = 0; in ufshcd_set_dev_pwr_mode()
9425 if (req_link_state == hba->uic_link_state) in ufshcd_link_state_transition()
9433 dev_err(hba->dev, "%s: hibern8 enter failed %d\n", in ufshcd_link_state_transition()
9444 (!check_for_bkops || !hba->auto_bkops_enabled)) { in ufshcd_link_state_transition()
9457 dev_err(hba->dev, "%s: hibern8 enter failed %d\n", in ufshcd_link_state_transition()
9488 hba->dev_quirks & UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM) in ufshcd_vreg_set_lpm()
9503 * If Write Booster is enabled and the device needs to flush the WB in ufshcd_vreg_set_lpm()
9507 !hba->dev_info.is_lu_power_on_wp) { in ufshcd_vreg_set_lpm()
9511 ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, false); in ufshcd_vreg_set_lpm()
9514 ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq); in ufshcd_vreg_set_lpm()
9515 ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq2); in ufshcd_vreg_set_lpm()
9520 * Some UFS devices require delay after VCC power rail is turned-off. in ufshcd_vreg_set_lpm()
9522 if (vcc_off && hba->vreg_info.vcc && in ufshcd_vreg_set_lpm()
9523 hba->dev_quirks & UFS_DEVICE_QUIRK_DELAY_AFTER_LPM) in ufshcd_vreg_set_lpm()
9533 !hba->dev_info.is_lu_power_on_wp) { in ufshcd_vreg_set_hpm()
9537 ret = ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq); in ufshcd_vreg_set_hpm()
9540 ret = ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq2); in ufshcd_vreg_set_hpm()
9544 ret = ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, true); in ufshcd_vreg_set_hpm()
9549 ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq); in ufshcd_vreg_set_hpm()
9551 ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, false); in ufshcd_vreg_set_hpm()
9577 hba->pm_op_in_progress = true; in __ufshcd_wl_suspend()
9580 hba->rpm_lvl : hba->spm_lvl; in __ufshcd_wl_suspend()
9593 hba->clk_gating.is_suspended = true; in __ufshcd_wl_suspend()
9603 if ((req_dev_pwr_mode == hba->curr_dev_pwr_mode) && in __ufshcd_wl_suspend()
9604 (req_link_state == hba->uic_link_state)) in __ufshcd_wl_suspend()
9612 ret = -EBUSY; in __ufshcd_wl_suspend()
9631 ret = -EBUSY; in __ufshcd_wl_suspend()
9641 * and VCC supply. in __ufshcd_wl_suspend()
9643 hba->dev_info.b_rpm_dev_flush_capable = in __ufshcd_wl_suspend()
9644 hba->auto_bkops_enabled || in __ufshcd_wl_suspend()
9651 flush_work(&hba->eeh_work); in __ufshcd_wl_suspend()
9657 if (req_dev_pwr_mode != hba->curr_dev_pwr_mode) { in __ufshcd_wl_suspend()
9662 if (!hba->dev_info.b_rpm_dev_flush_capable) { in __ufshcd_wl_suspend()
9671 ret = -EBUSY; in __ufshcd_wl_suspend()
9691 ret = -EBUSY; in __ufshcd_wl_suspend()
9706 cancel_delayed_work_sync(&hba->ufs_rtc_update_work); in __ufshcd_wl_suspend()
9735 hba->dev_info.b_rpm_dev_flush_capable = false; in __ufshcd_wl_suspend()
9737 if (hba->dev_info.b_rpm_dev_flush_capable) { in __ufshcd_wl_suspend()
9738 schedule_delayed_work(&hba->rpm_dev_flush_recheck_work, in __ufshcd_wl_suspend()
9744 hba->clk_gating.is_suspended = false; in __ufshcd_wl_suspend()
9747 hba->pm_op_in_progress = false; in __ufshcd_wl_suspend()
9755 enum uic_link_state old_link_state = hba->uic_link_state; in __ufshcd_wl_resume()
9757 hba->pm_op_in_progress = true; in __ufshcd_wl_resume()
9776 dev_err(hba->dev, "%s: hibern8 exit failed %d\n", in __ufshcd_wl_resume()
9801 schedule_delayed_work(&hba->ufs_rtc_update_work, in __ufshcd_wl_resume()
9810 * keep auto-bkops enabled or else disable it. in __ufshcd_wl_resume()
9814 if (hba->ee_usr_mask) in __ufshcd_wl_resume()
9820 if (hba->dev_info.b_rpm_dev_flush_capable) { in __ufshcd_wl_resume()
9821 hba->dev_info.b_rpm_dev_flush_capable = false; in __ufshcd_wl_resume()
9822 cancel_delayed_work(&hba->rpm_dev_flush_recheck_work); in __ufshcd_wl_resume()
9837 hba->clk_gating.is_suspended = false; in __ufshcd_wl_resume()
9839 hba->pm_op_in_progress = false; in __ufshcd_wl_resume()
9850 hba = shost_priv(sdev->host); in ufshcd_wl_runtime_suspend()
9854 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_runtime_suspend()
9858 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_runtime_suspend()
9870 hba = shost_priv(sdev->host); in ufshcd_wl_runtime_resume()
9874 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_runtime_resume()
9878 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_runtime_resume()
9892 hba = shost_priv(sdev->host); in ufshcd_wl_suspend()
9893 down(&hba->host_sem); in ufshcd_wl_suspend()
9894 hba->system_suspending = true; in ufshcd_wl_suspend()
9901 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_suspend()
9902 up(&hba->host_sem); in ufshcd_wl_suspend()
9907 hba->is_sys_suspended = true; in ufshcd_wl_suspend()
9910 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_suspend()
9922 hba = shost_priv(sdev->host); in ufshcd_wl_resume()
9929 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_resume()
9933 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_resume()
9935 hba->is_sys_suspended = false; in ufshcd_wl_resume()
9936 hba->system_suspending = false; in ufshcd_wl_resume()
9937 up(&hba->host_sem); in ufshcd_wl_resume()
9943 * ufshcd_suspend - helper function for suspend operations
9947 * and set vreg and hba-vreg in lpm mode.
9955 if (!hba->is_powered) in ufshcd_suspend()
9968 hba->clk_gating.state = CLKS_OFF; in ufshcd_suspend()
9969 trace_ufshcd_clk_gating(dev_name(hba->dev), in ufshcd_suspend()
9970 hba->clk_gating.state); in ufshcd_suspend()
9982 * ufshcd_resume - helper function for resume operations
9988 * Return: 0 for success and non-zero for failure.
9994 if (!hba->is_powered) in ufshcd_resume()
10023 * ufshcd_system_suspend - system suspend callback
10029 * Return: 0 for success and non-zero for failure.
10037 if (pm_runtime_suspended(hba->dev)) in ufshcd_system_suspend()
10042 trace_ufshcd_system_suspend(dev_name(hba->dev), ret, in ufshcd_system_suspend()
10044 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_system_suspend()
10050 * ufshcd_system_resume - system resume callback
10056 * Return: 0 for success and non-zero for failure.
10064 if (pm_runtime_suspended(hba->dev)) in ufshcd_system_resume()
10070 trace_ufshcd_system_resume(dev_name(hba->dev), ret, in ufshcd_system_resume()
10072 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_system_resume()
10081 * ufshcd_runtime_suspend - runtime suspend callback
10086 * Return: 0 for success and non-zero for failure.
10096 trace_ufshcd_runtime_suspend(dev_name(hba->dev), ret, in ufshcd_runtime_suspend()
10098 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_runtime_suspend()
10104 * ufshcd_runtime_resume - runtime resume routine
10123 trace_ufshcd_runtime_resume(dev_name(hba->dev), ret, in ufshcd_runtime_resume()
10125 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_runtime_resume()
10134 struct ufs_hba *hba = shost_priv(sdev->host); in ufshcd_wl_shutdown()
10136 down(&hba->host_sem); in ufshcd_wl_shutdown()
10137 hba->shutting_down = true; in ufshcd_wl_shutdown()
10138 up(&hba->host_sem); in ufshcd_wl_shutdown()
10143 shost_for_each_device(sdev, hba->host) { in ufshcd_wl_shutdown()
10144 if (sdev == hba->ufs_device_wlun) in ufshcd_wl_shutdown()
10146 mutex_lock(&sdev->state_mutex); in ufshcd_wl_shutdown()
10148 mutex_unlock(&sdev->state_mutex); in ufshcd_wl_shutdown()
10159 hba->is_powered = false; in ufshcd_wl_shutdown()
10163 * ufshcd_remove - de-allocate SCSI host and host memory space
10169 if (hba->ufs_device_wlun) in ufshcd_remove()
10173 ufs_sysfs_remove_nodes(hba->dev); in ufshcd_remove()
10174 cancel_delayed_work_sync(&hba->ufs_rtc_update_work); in ufshcd_remove()
10175 blk_mq_destroy_queue(hba->tmf_queue); in ufshcd_remove()
10176 blk_put_queue(hba->tmf_queue); in ufshcd_remove()
10177 blk_mq_free_tag_set(&hba->tmf_tag_set); in ufshcd_remove()
10178 if (hba->scsi_host_added) in ufshcd_remove()
10179 scsi_remove_host(hba->host); in ufshcd_remove()
10181 ufshcd_disable_intr(hba, hba->intr_mask); in ufshcd_remove()
10207 ufshcd_writel(hba, lower_32_bits(hba->utrdl_dma_addr), in ufshcd_system_restore()
10209 ufshcd_writel(hba, upper_32_bits(hba->utrdl_dma_addr), in ufshcd_system_restore()
10211 ufshcd_writel(hba, lower_32_bits(hba->utmrdl_dma_addr), in ufshcd_system_restore()
10213 ufshcd_writel(hba, upper_32_bits(hba->utmrdl_dma_addr), in ufshcd_system_restore()
10235 * ufshcd_set_dma_mask - Set dma mask based on the controller
10239 * Return: 0 for success, non-zero for failure.
10243 if (hba->vops && hba->vops->set_dma_mask) in ufshcd_set_dma_mask()
10244 return hba->vops->set_dma_mask(hba); in ufshcd_set_dma_mask()
10245 if (hba->capabilities & MASK_64_ADDRESSING_SUPPORT) { in ufshcd_set_dma_mask()
10246 if (!dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(64))) in ufshcd_set_dma_mask()
10249 return dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(32)); in ufshcd_set_dma_mask()
10253 * ufshcd_devres_release - devres cleanup handler, invoked during release of
10254 * hba->dev
10263 * ufshcd_alloc_host - allocate Host Bus Adapter (HBA)
10267 * Return: 0 on success, non-zero value on failure.
10282 err = -ENODEV; in ufshcd_alloc_host()
10290 err = -ENOMEM; in ufshcd_alloc_host()
10300 host->nr_maps = HCTX_TYPE_POLL + 1; in ufshcd_alloc_host()
10302 hba->host = host; in ufshcd_alloc_host()
10303 hba->dev = dev; in ufshcd_alloc_host()
10304 hba->dev_ref_clk_freq = REF_CLK_FREQ_INVAL; in ufshcd_alloc_host()
10305 hba->nop_out_timeout = NOP_OUT_TIMEOUT; in ufshcd_alloc_host()
10307 INIT_LIST_HEAD(&hba->clk_list_head); in ufshcd_alloc_host()
10308 spin_lock_init(&hba->outstanding_lock); in ufshcd_alloc_host()
10342 dev_err(hba->dev, "MCQ mode is disabled, err=%d\n", in ufshcd_add_scsi_host()
10346 if (!is_mcq_supported(hba) && !hba->lsdb_sup) { in ufshcd_add_scsi_host()
10347 dev_err(hba->dev, in ufshcd_add_scsi_host()
10350 return -EINVAL; in ufshcd_add_scsi_host()
10353 err = scsi_add_host(hba->host, hba->dev); in ufshcd_add_scsi_host()
10355 dev_err(hba->dev, "scsi_add_host failed\n"); in ufshcd_add_scsi_host()
10358 hba->scsi_host_added = true; in ufshcd_add_scsi_host()
10360 hba->tmf_tag_set = (struct blk_mq_tag_set) { in ufshcd_add_scsi_host()
10362 .queue_depth = hba->nutmrs, in ufshcd_add_scsi_host()
10365 err = blk_mq_alloc_tag_set(&hba->tmf_tag_set); in ufshcd_add_scsi_host()
10368 hba->tmf_queue = blk_mq_alloc_queue(&hba->tmf_tag_set, NULL, NULL); in ufshcd_add_scsi_host()
10369 if (IS_ERR(hba->tmf_queue)) { in ufshcd_add_scsi_host()
10370 err = PTR_ERR(hba->tmf_queue); in ufshcd_add_scsi_host()
10373 hba->tmf_rqs = devm_kcalloc(hba->dev, hba->nutmrs, in ufshcd_add_scsi_host()
10374 sizeof(*hba->tmf_rqs), GFP_KERNEL); in ufshcd_add_scsi_host()
10375 if (!hba->tmf_rqs) { in ufshcd_add_scsi_host()
10376 err = -ENOMEM; in ufshcd_add_scsi_host()
10383 blk_mq_destroy_queue(hba->tmf_queue); in ufshcd_add_scsi_host()
10384 blk_put_queue(hba->tmf_queue); in ufshcd_add_scsi_host()
10387 blk_mq_free_tag_set(&hba->tmf_tag_set); in ufshcd_add_scsi_host()
10390 if (hba->scsi_host_added) in ufshcd_add_scsi_host()
10391 scsi_remove_host(hba->host); in ufshcd_add_scsi_host()
10397 * ufshcd_init - Driver initialization routine
10398 * @hba: per-adapter instance
10402 * Return: 0 on success, non-zero value on failure.
10407 struct Scsi_Host *host = hba->host; in ufshcd_init()
10408 struct device *dev = hba->dev; in ufshcd_init()
10418 dev_err(hba->dev, in ufshcd_init()
10420 err = -ENODEV; in ufshcd_init()
10424 hba->mmio_base = mmio_base; in ufshcd_init()
10425 hba->irq = irq; in ufshcd_init()
10426 hba->vps = &ufs_hba_vps; in ufshcd_init()
10432 spin_lock_init(&hba->clk_gating.lock); in ufshcd_init()
10442 hba->rpm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( in ufshcd_init()
10445 hba->spm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( in ufshcd_init()
10459 hba->ufs_version = ufshcd_get_ufs_version(hba); in ufshcd_init()
10462 hba->intr_mask = ufshcd_get_intr_mask(hba); in ufshcd_init()
10466 dev_err(hba->dev, "set dma mask failed\n"); in ufshcd_init()
10473 dev_err(hba->dev, "Memory allocation failed\n"); in ufshcd_init()
10480 host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_init()
10481 host->cmd_per_lun = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_init()
10482 host->max_id = UFSHCD_MAX_ID; in ufshcd_init()
10483 host->max_lun = UFS_MAX_LUNS; in ufshcd_init()
10484 host->max_channel = UFSHCD_MAX_CHANNEL; in ufshcd_init()
10485 host->unique_id = host->host_no; in ufshcd_init()
10486 host->max_cmd_len = UFS_CDB_SIZE; in ufshcd_init()
10487 host->queuecommand_may_block = !!(hba->caps & UFSHCD_CAP_CLK_GATING); in ufshcd_init()
10490 if (host->rpm_autosuspend_delay == 0) in ufshcd_init()
10491 host->rpm_autosuspend_delay = RPM_AUTOSUSPEND_DELAY_MS; in ufshcd_init()
10493 hba->max_pwr_info.is_valid = false; in ufshcd_init()
10496 hba->eh_wq = alloc_ordered_workqueue("ufs_eh_wq_%d", WQ_MEM_RECLAIM, in ufshcd_init()
10497 hba->host->host_no); in ufshcd_init()
10498 if (!hba->eh_wq) { in ufshcd_init()
10499 dev_err(hba->dev, "%s: failed to create eh workqueue\n", in ufshcd_init()
10501 err = -ENOMEM; in ufshcd_init()
10504 INIT_WORK(&hba->eh_work, ufshcd_err_handler); in ufshcd_init()
10505 INIT_WORK(&hba->eeh_work, ufshcd_exception_event_handler); in ufshcd_init()
10507 sema_init(&hba->host_sem, 1); in ufshcd_init()
10510 mutex_init(&hba->uic_cmd_mutex); in ufshcd_init()
10513 mutex_init(&hba->dev_cmd.lock); in ufshcd_init()
10516 mutex_init(&hba->ee_ctrl_mutex); in ufshcd_init()
10518 mutex_init(&hba->wb_mutex); in ufshcd_init()
10519 init_rwsem(&hba->clk_scaling_lock); in ufshcd_init()
10542 dev_err(hba->dev, "request irq failed\n"); in ufshcd_init()
10545 hba->is_irq_enabled = true; in ufshcd_init()
10556 dev_err(hba->dev, "Host controller enable failed\n"); in ufshcd_init()
10562 INIT_DELAYED_WORK(&hba->rpm_dev_flush_recheck_work, ufshcd_rpm_dev_flush_recheck_work); in ufshcd_init()
10563 INIT_DELAYED_WORK(&hba->ufs_rtc_update_work, ufshcd_rtc_work); in ufshcd_init()
10565 /* Set the default auto-hiberate idle timer value to 150 ms */ in ufshcd_init()
10566 if (ufshcd_is_auto_hibern8_supported(hba) && !hba->ahit) { in ufshcd_init()
10567 hba->ahit = FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 150) | in ufshcd_init()
10575 * We are assuming that device wasn't put in sleep/power-down in ufshcd_init()
10585 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_init()
10591 if (hba->quirks & UFSHCD_QUIRK_SKIP_PH_CONFIGURATION) in ufshcd_init()
10626 ufs_sysfs_add_nodes(hba->dev); in ufshcd_init()
10633 hba->is_irq_enabled = false; in ufshcd_init()
10644 if (hba->complete_put) { in ufshcd_resume_complete()
10646 hba->complete_put = false; in ufshcd_resume_complete()
10653 struct device *dev = &hba->ufs_device_wlun->sdev_gendev; in ufshcd_rpm_ok_for_spm()
10659 spin_lock_irqsave(&dev->power.lock, flags); in ufshcd_rpm_ok_for_spm()
10660 dev_pwr_mode = ufs_get_pm_lvl_to_dev_pwr_mode(hba->spm_lvl); in ufshcd_rpm_ok_for_spm()
10661 link_state = ufs_get_pm_lvl_to_link_pwr_state(hba->spm_lvl); in ufshcd_rpm_ok_for_spm()
10663 hba->curr_dev_pwr_mode == dev_pwr_mode && in ufshcd_rpm_ok_for_spm()
10664 hba->uic_link_state == link_state && in ufshcd_rpm_ok_for_spm()
10665 !hba->dev_info.b_rpm_dev_flush_capable; in ufshcd_rpm_ok_for_spm()
10666 spin_unlock_irqrestore(&dev->power.lock, flags); in ufshcd_rpm_ok_for_spm()
10677 * SCSI assumes that runtime-pm and system-pm for scsi drivers in __ufshcd_suspend_prepare()
10678 * are same. And it doesn't wake up the device for system-suspend in __ufshcd_suspend_prepare()
10682 if (hba->ufs_device_wlun) { in __ufshcd_suspend_prepare()
10692 if (ret < 0 && ret != -EACCES) { in __ufshcd_suspend_prepare()
10697 hba->complete_put = true; in __ufshcd_suspend_prepare()
10713 struct ufs_hba *hba = shost_priv(sdev->host); in ufshcd_wl_poweroff()
10725 return -ENODEV; in ufshcd_wl_probe()
10727 blk_pm_runtime_init(sdev->request_queue, dev); in ufshcd_wl_probe()
10755 * gcc compilers before version 10 cannot do constant-folding for in ufshcd_check_header_layout()
10756 * sub-byte bitfields. Hence skip the layout checks for gcc 9 and in ufshcd_check_header_layout()
10800 * ufs_dev_wlun_template - describes ufs device wlun
10801 * ufs-device wlun - used to send pm commands
10802 * All luns are consumers of ufs-device wlun.
10806 * With ufs design, SSU should be sent to ufs-device wlun.