Lines Matching +full:hba +full:- +full:cap
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"
75 /* maximum number of link-startup retries */
108 static bool is_mcq_supported(struct ufs_hba *hba) in is_mcq_supported() argument
110 return hba->mcq_sup && use_mcq_mode; in is_mcq_supported()
114 …mode, "Control MCQ mode for controllers starting from UFSHCI 4.0. 1 - enable MCQ, 0 - disable MCQ.…
133 int ufshcd_dump_regs(struct ufs_hba *hba, size_t offset, size_t len, in ufshcd_dump_regs() argument
140 return -EINVAL; in ufshcd_dump_regs()
144 return -ENOMEM; in ufshcd_dump_regs()
151 regs[pos / 4] = ufshcd_readl(hba, offset + pos); in ufshcd_dump_regs()
164 UFSHCD_CMD_PER_LUN = 32 - UFSHCD_NUM_RESERVED,
165 UFSHCD_CAN_QUEUE = 32 - UFSHCD_NUM_RESERVED,
193 ((h)->eh_flags |= UFSHCD_EH_IN_PROGRESS)
195 ((h)->eh_flags & UFSHCD_EH_IN_PROGRESS)
197 ((h)->eh_flags &= ~UFSHCD_EH_IN_PROGRESS)
241 static bool ufshcd_is_ufs_dev_busy(struct ufs_hba *hba) in ufshcd_is_ufs_dev_busy() argument
243 return (hba->clk_gating.active_reqs || hba->outstanding_reqs || hba->outstanding_tasks || in ufshcd_is_ufs_dev_busy()
244 hba->active_uic_cmd || hba->uic_async_done); in ufshcd_is_ufs_dev_busy()
275 static irqreturn_t ufshcd_tmc_handler(struct ufs_hba *hba);
277 static int ufshcd_reset_and_restore(struct ufs_hba *hba);
279 static int ufshcd_clear_tm_cmd(struct ufs_hba *hba, int tag);
280 static void ufshcd_hba_exit(struct ufs_hba *hba);
281 static int ufshcd_probe_hba(struct ufs_hba *hba, bool init_dev_params);
282 static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on);
283 static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba);
284 static int ufshcd_host_reset_and_restore(struct ufs_hba *hba);
285 static void ufshcd_resume_clkscaling(struct ufs_hba *hba);
286 static void ufshcd_suspend_clkscaling(struct ufs_hba *hba);
287 static int ufshcd_scale_clks(struct ufs_hba *hba, unsigned long freq,
290 static int ufshcd_change_power_mode(struct ufs_hba *hba,
292 static int ufshcd_setup_hba_vreg(struct ufs_hba *hba, bool on);
293 static int ufshcd_setup_vreg(struct ufs_hba *hba, bool on);
294 static inline int ufshcd_config_vreg_hpm(struct ufs_hba *hba,
296 static void ufshcd_wb_toggle_buf_flush_during_h8(struct ufs_hba *hba,
298 static void ufshcd_hba_vreg_set_lpm(struct ufs_hba *hba);
299 static void ufshcd_hba_vreg_set_hpm(struct ufs_hba *hba);
301 void ufshcd_enable_irq(struct ufs_hba *hba) in ufshcd_enable_irq() argument
303 if (!hba->is_irq_enabled) { in ufshcd_enable_irq()
304 enable_irq(hba->irq); in ufshcd_enable_irq()
305 hba->is_irq_enabled = true; in ufshcd_enable_irq()
310 void ufshcd_disable_irq(struct ufs_hba *hba) in ufshcd_disable_irq() argument
312 if (hba->is_irq_enabled) { in ufshcd_disable_irq()
313 disable_irq(hba->irq); in ufshcd_disable_irq()
314 hba->is_irq_enabled = false; in ufshcd_disable_irq()
319 static void ufshcd_configure_wb(struct ufs_hba *hba) in ufshcd_configure_wb() argument
321 if (!ufshcd_is_wb_allowed(hba)) in ufshcd_configure_wb()
324 ufshcd_wb_toggle(hba, true); in ufshcd_configure_wb()
326 ufshcd_wb_toggle_buf_flush_during_h8(hba, true); in ufshcd_configure_wb()
328 if (ufshcd_is_wb_buf_flush_allowed(hba)) in ufshcd_configure_wb()
329 ufshcd_wb_toggle_buf_flush(hba, true); in ufshcd_configure_wb()
332 static void ufshcd_scsi_unblock_requests(struct ufs_hba *hba) in ufshcd_scsi_unblock_requests() argument
334 if (atomic_dec_and_test(&hba->scsi_block_reqs_cnt)) in ufshcd_scsi_unblock_requests()
335 scsi_unblock_requests(hba->host); in ufshcd_scsi_unblock_requests()
338 static void ufshcd_scsi_block_requests(struct ufs_hba *hba) in ufshcd_scsi_block_requests() argument
340 if (atomic_inc_return(&hba->scsi_block_reqs_cnt) == 1) in ufshcd_scsi_block_requests()
341 scsi_block_requests(hba->host); in ufshcd_scsi_block_requests()
344 static void ufshcd_add_cmd_upiu_trace(struct ufs_hba *hba, unsigned int tag, in ufshcd_add_cmd_upiu_trace() argument
347 struct utp_upiu_req *rq = hba->lrb[tag].ucd_req_ptr; in ufshcd_add_cmd_upiu_trace()
354 header = &rq->header; in ufshcd_add_cmd_upiu_trace()
356 header = &hba->lrb[tag].ucd_rsp_ptr->header; in ufshcd_add_cmd_upiu_trace()
358 trace_ufshcd_upiu(dev_name(hba->dev), str_t, header, &rq->sc.cdb, in ufshcd_add_cmd_upiu_trace()
362 static void ufshcd_add_query_upiu_trace(struct ufs_hba *hba, in ufshcd_add_query_upiu_trace() argument
369 trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq_rsp->header, in ufshcd_add_query_upiu_trace()
370 &rq_rsp->qr, UFS_TSF_OSF); in ufshcd_add_query_upiu_trace()
373 static void ufshcd_add_tm_upiu_trace(struct ufs_hba *hba, unsigned int tag, in ufshcd_add_tm_upiu_trace() argument
376 struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[tag]; in ufshcd_add_tm_upiu_trace()
382 trace_ufshcd_upiu(dev_name(hba->dev), str_t, in ufshcd_add_tm_upiu_trace()
383 &descp->upiu_req.req_header, in ufshcd_add_tm_upiu_trace()
384 &descp->upiu_req.input_param1, in ufshcd_add_tm_upiu_trace()
387 trace_ufshcd_upiu(dev_name(hba->dev), str_t, in ufshcd_add_tm_upiu_trace()
388 &descp->upiu_rsp.rsp_header, in ufshcd_add_tm_upiu_trace()
389 &descp->upiu_rsp.output_param1, in ufshcd_add_tm_upiu_trace()
393 static void ufshcd_add_uic_command_trace(struct ufs_hba *hba, in ufshcd_add_uic_command_trace() argument
403 cmd = ucmd->command; in ufshcd_add_uic_command_trace()
405 cmd = ufshcd_readl(hba, REG_UIC_COMMAND); in ufshcd_add_uic_command_trace()
407 trace_ufshcd_uic_command(dev_name(hba->dev), str_t, cmd, in ufshcd_add_uic_command_trace()
408 ufshcd_readl(hba, REG_UIC_COMMAND_ARG_1), in ufshcd_add_uic_command_trace()
409 ufshcd_readl(hba, REG_UIC_COMMAND_ARG_2), in ufshcd_add_uic_command_trace()
410 ufshcd_readl(hba, REG_UIC_COMMAND_ARG_3)); in ufshcd_add_uic_command_trace()
413 static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag, in ufshcd_add_command_trace() argument
420 int hwq_id = -1; in ufshcd_add_command_trace()
421 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_add_command_trace()
422 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_add_command_trace()
424 int transfer_len = -1; in ufshcd_add_command_trace()
430 ufshcd_add_cmd_upiu_trace(hba, tag, str_t); in ufshcd_add_command_trace()
434 opcode = cmd->cmnd[0]; in ufshcd_add_command_trace()
441 be32_to_cpu(lrbp->ucd_req_ptr->sc.exp_data_transfer_len); in ufshcd_add_command_trace()
444 group_id = lrbp->cmd->cmnd[6]; in ufshcd_add_command_trace()
453 intr = ufshcd_readl(hba, REG_INTERRUPT_STATUS); in ufshcd_add_command_trace()
455 if (is_mcq_enabled(hba)) { in ufshcd_add_command_trace()
456 struct ufs_hw_queue *hwq = ufshcd_mcq_req_to_hwq(hba, rq); in ufshcd_add_command_trace()
458 hwq_id = hwq->id; in ufshcd_add_command_trace()
460 doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL); in ufshcd_add_command_trace()
462 trace_ufshcd_command(cmd->device, str_t, tag, doorbell, hwq_id, in ufshcd_add_command_trace()
466 static void ufshcd_print_clk_freqs(struct ufs_hba *hba) in ufshcd_print_clk_freqs() argument
469 struct list_head *head = &hba->clk_list_head; in ufshcd_print_clk_freqs()
475 if (!IS_ERR_OR_NULL(clki->clk) && clki->min_freq && in ufshcd_print_clk_freqs()
476 clki->max_freq) in ufshcd_print_clk_freqs()
477 dev_err(hba->dev, "clk: %s, rate: %u\n", in ufshcd_print_clk_freqs()
478 clki->name, clki->curr_freq); in ufshcd_print_clk_freqs()
482 static void ufshcd_print_evt(struct ufs_hba *hba, u32 id, in ufshcd_print_evt() argument
492 e = &hba->ufs_stats.event[id]; in ufshcd_print_evt()
495 int p = (i + e->pos) % UFS_EVENT_HIST_LENGTH; in ufshcd_print_evt()
497 if (e->tstamp[p] == 0) in ufshcd_print_evt()
499 dev_err(hba->dev, "%s[%d] = 0x%x at %lld us\n", err_name, p, in ufshcd_print_evt()
500 e->val[p], div_u64(e->tstamp[p], 1000)); in ufshcd_print_evt()
505 dev_err(hba->dev, "No record of %s\n", err_name); in ufshcd_print_evt()
507 dev_err(hba->dev, "%s: total cnt=%llu\n", err_name, e->cnt); in ufshcd_print_evt()
510 static void ufshcd_print_evt_hist(struct ufs_hba *hba) in ufshcd_print_evt_hist() argument
512 ufshcd_dump_regs(hba, 0, UFSHCI_REG_SPACE_SIZE, "host_regs: "); in ufshcd_print_evt_hist()
514 ufshcd_print_evt(hba, UFS_EVT_PA_ERR, "pa_err"); in ufshcd_print_evt_hist()
515 ufshcd_print_evt(hba, UFS_EVT_DL_ERR, "dl_err"); in ufshcd_print_evt_hist()
516 ufshcd_print_evt(hba, UFS_EVT_NL_ERR, "nl_err"); in ufshcd_print_evt_hist()
517 ufshcd_print_evt(hba, UFS_EVT_TL_ERR, "tl_err"); in ufshcd_print_evt_hist()
518 ufshcd_print_evt(hba, UFS_EVT_DME_ERR, "dme_err"); in ufshcd_print_evt_hist()
519 ufshcd_print_evt(hba, UFS_EVT_AUTO_HIBERN8_ERR, in ufshcd_print_evt_hist()
521 ufshcd_print_evt(hba, UFS_EVT_FATAL_ERR, "fatal_err"); in ufshcd_print_evt_hist()
522 ufshcd_print_evt(hba, UFS_EVT_LINK_STARTUP_FAIL, in ufshcd_print_evt_hist()
524 ufshcd_print_evt(hba, UFS_EVT_RESUME_ERR, "resume_fail"); in ufshcd_print_evt_hist()
525 ufshcd_print_evt(hba, UFS_EVT_SUSPEND_ERR, in ufshcd_print_evt_hist()
527 ufshcd_print_evt(hba, UFS_EVT_WL_RES_ERR, "wlun resume_fail"); in ufshcd_print_evt_hist()
528 ufshcd_print_evt(hba, UFS_EVT_WL_SUSP_ERR, in ufshcd_print_evt_hist()
530 ufshcd_print_evt(hba, UFS_EVT_DEV_RESET, "dev_reset"); in ufshcd_print_evt_hist()
531 ufshcd_print_evt(hba, UFS_EVT_HOST_RESET, "host_reset"); in ufshcd_print_evt_hist()
532 ufshcd_print_evt(hba, UFS_EVT_ABORT, "task_abort"); in ufshcd_print_evt_hist()
534 ufshcd_vops_dbg_register_dump(hba); in ufshcd_print_evt_hist()
538 void ufshcd_print_tr(struct ufs_hba *hba, int tag, bool pr_prdt) in ufshcd_print_tr() argument
543 lrbp = &hba->lrb[tag]; in ufshcd_print_tr()
545 dev_err(hba->dev, "UPIU[%d] - issue time %lld us\n", in ufshcd_print_tr()
546 tag, div_u64(lrbp->issue_time_stamp_local_clock, 1000)); in ufshcd_print_tr()
547 dev_err(hba->dev, "UPIU[%d] - complete time %lld us\n", in ufshcd_print_tr()
548 tag, div_u64(lrbp->compl_time_stamp_local_clock, 1000)); in ufshcd_print_tr()
549 dev_err(hba->dev, in ufshcd_print_tr()
550 "UPIU[%d] - Transfer Request Descriptor phys@0x%llx\n", in ufshcd_print_tr()
551 tag, (u64)lrbp->utrd_dma_addr); in ufshcd_print_tr()
553 ufshcd_hex_dump("UPIU TRD: ", lrbp->utr_descriptor_ptr, in ufshcd_print_tr()
555 dev_err(hba->dev, "UPIU[%d] - Request UPIU phys@0x%llx\n", tag, in ufshcd_print_tr()
556 (u64)lrbp->ucd_req_dma_addr); in ufshcd_print_tr()
557 ufshcd_hex_dump("UPIU REQ: ", lrbp->ucd_req_ptr, in ufshcd_print_tr()
559 dev_err(hba->dev, "UPIU[%d] - Response UPIU phys@0x%llx\n", tag, in ufshcd_print_tr()
560 (u64)lrbp->ucd_rsp_dma_addr); in ufshcd_print_tr()
561 ufshcd_hex_dump("UPIU RSP: ", lrbp->ucd_rsp_ptr, in ufshcd_print_tr()
565 lrbp->utr_descriptor_ptr->prd_table_length); in ufshcd_print_tr()
566 if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) in ufshcd_print_tr()
567 prdt_length /= ufshcd_sg_entry_size(hba); in ufshcd_print_tr()
569 dev_err(hba->dev, in ufshcd_print_tr()
570 "UPIU[%d] - PRDT - %d entries phys@0x%llx\n", in ufshcd_print_tr()
572 (u64)lrbp->ucd_prdt_dma_addr); in ufshcd_print_tr()
575 ufshcd_hex_dump("UPIU PRDT: ", lrbp->ucd_prdt_ptr, in ufshcd_print_tr()
576 ufshcd_sg_entry_size(hba) * prdt_length); in ufshcd_print_tr()
581 struct scsi_device *sdev = req->q->queuedata; in ufshcd_print_tr_iter()
582 struct Scsi_Host *shost = sdev->host; in ufshcd_print_tr_iter()
583 struct ufs_hba *hba = shost_priv(shost); in ufshcd_print_tr_iter() local
585 ufshcd_print_tr(hba, req->tag, *(bool *)priv); in ufshcd_print_tr_iter()
591 * ufshcd_print_trs_all - print trs for all started requests.
592 * @hba: per-adapter instance.
595 static void ufshcd_print_trs_all(struct ufs_hba *hba, bool pr_prdt) in ufshcd_print_trs_all() argument
597 blk_mq_tagset_busy_iter(&hba->host->tag_set, ufshcd_print_tr_iter, &pr_prdt); in ufshcd_print_trs_all()
600 static void ufshcd_print_tmrs(struct ufs_hba *hba, unsigned long bitmap) in ufshcd_print_tmrs() argument
604 for_each_set_bit(tag, &bitmap, hba->nutmrs) { in ufshcd_print_tmrs()
605 struct utp_task_req_desc *tmrdp = &hba->utmrdl_base_addr[tag]; in ufshcd_print_tmrs()
607 dev_err(hba->dev, "TM[%d] - Task Management Header\n", tag); in ufshcd_print_tmrs()
612 static void ufshcd_print_host_state(struct ufs_hba *hba) in ufshcd_print_host_state() argument
614 const struct scsi_device *sdev_ufs = hba->ufs_device_wlun; in ufshcd_print_host_state()
616 dev_err(hba->dev, "UFS Host state=%d\n", hba->ufshcd_state); in ufshcd_print_host_state()
617 dev_err(hba->dev, "outstanding reqs=0x%lx tasks=0x%lx\n", in ufshcd_print_host_state()
618 hba->outstanding_reqs, hba->outstanding_tasks); in ufshcd_print_host_state()
619 dev_err(hba->dev, "saved_err=0x%x, saved_uic_err=0x%x\n", in ufshcd_print_host_state()
620 hba->saved_err, hba->saved_uic_err); in ufshcd_print_host_state()
621 dev_err(hba->dev, "Device power mode=%d, UIC link state=%d\n", in ufshcd_print_host_state()
622 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_print_host_state()
623 dev_err(hba->dev, "PM in progress=%d, sys. suspended=%d\n", in ufshcd_print_host_state()
624 hba->pm_op_in_progress, hba->is_sys_suspended); in ufshcd_print_host_state()
625 dev_err(hba->dev, "Auto BKOPS=%d, Host self-block=%d\n", in ufshcd_print_host_state()
626 hba->auto_bkops_enabled, hba->host->host_self_blocked); in ufshcd_print_host_state()
627 dev_err(hba->dev, "Clk gate=%d\n", hba->clk_gating.state); in ufshcd_print_host_state()
628 dev_err(hba->dev, in ufshcd_print_host_state()
630 div_u64(hba->ufs_stats.last_hibern8_exit_tstamp, 1000), in ufshcd_print_host_state()
631 hba->ufs_stats.hibern8_exit_cnt); in ufshcd_print_host_state()
632 dev_err(hba->dev, "last intr at %lld us, last intr status=0x%x\n", in ufshcd_print_host_state()
633 div_u64(hba->ufs_stats.last_intr_ts, 1000), in ufshcd_print_host_state()
634 hba->ufs_stats.last_intr_status); in ufshcd_print_host_state()
635 dev_err(hba->dev, "error handling flags=0x%x, req. abort count=%d\n", in ufshcd_print_host_state()
636 hba->eh_flags, hba->req_abort_count); in ufshcd_print_host_state()
637 dev_err(hba->dev, "hba->ufs_version=0x%x, Host capabilities=0x%x, caps=0x%x\n", in ufshcd_print_host_state()
638 hba->ufs_version, hba->capabilities, hba->caps); in ufshcd_print_host_state()
639 dev_err(hba->dev, "quirks=0x%x, dev. quirks=0x%x\n", hba->quirks, in ufshcd_print_host_state()
640 hba->dev_quirks); in ufshcd_print_host_state()
642 dev_err(hba->dev, "UFS dev info: %.8s %.16s rev %.4s\n", in ufshcd_print_host_state()
643 sdev_ufs->vendor, sdev_ufs->model, sdev_ufs->rev); in ufshcd_print_host_state()
645 ufshcd_print_clk_freqs(hba); in ufshcd_print_host_state()
649 * ufshcd_print_pwr_info - print power params as saved in hba
651 * @hba: per-adapter instance
653 static void ufshcd_print_pwr_info(struct ufs_hba *hba) in ufshcd_print_pwr_info() argument
667 * never-ending cycles of messages written back to storage by user space in ufshcd_print_pwr_info()
670 dev_dbg(hba->dev, "%s:[RX, TX]: gear=[%d, %d], lane[%d, %d], pwr[%s, %s], rate = %d\n", in ufshcd_print_pwr_info()
672 hba->pwr_info.gear_rx, hba->pwr_info.gear_tx, in ufshcd_print_pwr_info()
673 hba->pwr_info.lane_rx, hba->pwr_info.lane_tx, in ufshcd_print_pwr_info()
674 names[hba->pwr_info.pwr_rx], in ufshcd_print_pwr_info()
675 names[hba->pwr_info.pwr_tx], in ufshcd_print_pwr_info()
676 hba->pwr_info.hs_rate); in ufshcd_print_pwr_info()
679 static void ufshcd_device_reset(struct ufs_hba *hba) in ufshcd_device_reset() argument
683 err = ufshcd_vops_device_reset(hba); in ufshcd_device_reset()
686 ufshcd_set_ufs_dev_active(hba); in ufshcd_device_reset()
687 if (ufshcd_is_wb_allowed(hba)) { in ufshcd_device_reset()
688 hba->dev_info.wb_enabled = false; in ufshcd_device_reset()
689 hba->dev_info.wb_buf_flush_enabled = false; in ufshcd_device_reset()
691 if (hba->dev_info.rtc_type == UFS_RTC_RELATIVE) in ufshcd_device_reset()
692 hba->dev_info.rtc_time_baseline = 0; in ufshcd_device_reset()
694 if (err != -EOPNOTSUPP) in ufshcd_device_reset()
695 ufshcd_update_evt_hist(hba, UFS_EVT_DEV_RESET, err); in ufshcd_device_reset()
711 * ufshcd_wait_for_register - wait for register value to change
712 * @hba: per-adapter interface
719 * Return: -ETIMEDOUT on error, zero on success.
721 static int ufshcd_wait_for_register(struct ufs_hba *hba, u32 reg, u32 mask, in ufshcd_wait_for_register() argument
731 while ((ufshcd_readl(hba, reg) & mask) != val) { in ufshcd_wait_for_register()
734 if ((ufshcd_readl(hba, reg) & mask) != val) in ufshcd_wait_for_register()
735 err = -ETIMEDOUT; in ufshcd_wait_for_register()
744 * ufshcd_get_intr_mask - Get the interrupt bit mask
745 * @hba: Pointer to adapter instance
749 static inline u32 ufshcd_get_intr_mask(struct ufs_hba *hba) in ufshcd_get_intr_mask() argument
751 if (hba->ufs_version == ufshci_version(1, 0)) in ufshcd_get_intr_mask()
753 if (hba->ufs_version <= ufshci_version(2, 0)) in ufshcd_get_intr_mask()
760 * ufshcd_get_ufs_version - Get the UFS version supported by the HBA
761 * @hba: Pointer to adapter instance
765 static inline u32 ufshcd_get_ufs_version(struct ufs_hba *hba) in ufshcd_get_ufs_version() argument
769 if (hba->quirks & UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION) in ufshcd_get_ufs_version()
770 ufshci_ver = ufshcd_vops_get_ufs_hci_version(hba); in ufshcd_get_ufs_version()
772 ufshci_ver = ufshcd_readl(hba, REG_UFS_VERSION); in ufshcd_get_ufs_version()
786 * ufshcd_is_device_present - Check if any device connected to
788 * @hba: pointer to adapter instance
792 static inline bool ufshcd_is_device_present(struct ufs_hba *hba) in ufshcd_is_device_present() argument
794 return ufshcd_readl(hba, REG_CONTROLLER_STATUS) & DEVICE_PRESENT; in ufshcd_is_device_present()
798 * ufshcd_get_tr_ocs - Get the UTRD Overall Command Status
810 return le32_to_cpu(cqe->status) & MASK_OCS; in ufshcd_get_tr_ocs()
812 return lrbp->utr_descriptor_ptr->header.ocs & MASK_OCS; in ufshcd_get_tr_ocs()
816 * ufshcd_utrl_clear() - Clear requests from the controller request list.
817 * @hba: per adapter instance
820 static inline void ufshcd_utrl_clear(struct ufs_hba *hba, u32 mask) in ufshcd_utrl_clear() argument
822 if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR) in ufshcd_utrl_clear()
837 ufshcd_writel(hba, ~mask, REG_UTP_TRANSFER_REQ_LIST_CLEAR); in ufshcd_utrl_clear()
841 * ufshcd_utmrl_clear - Clear a bit in UTMRLCLR register
842 * @hba: per adapter instance
845 static inline void ufshcd_utmrl_clear(struct ufs_hba *hba, u32 pos) in ufshcd_utmrl_clear() argument
847 if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR) in ufshcd_utmrl_clear()
848 ufshcd_writel(hba, (1 << pos), REG_UTP_TASK_REQ_LIST_CLEAR); in ufshcd_utmrl_clear()
850 ufshcd_writel(hba, ~(1 << pos), REG_UTP_TASK_REQ_LIST_CLEAR); in ufshcd_utmrl_clear()
854 * ufshcd_get_lists_status - Check UCRDY, UTRLRDY and UTMRLRDY
865 * ufshcd_get_uic_cmd_result - Get the UIC command result
866 * @hba: Pointer to adapter instance
870 * Return: 0 on success; non-zero value on error.
872 static inline int ufshcd_get_uic_cmd_result(struct ufs_hba *hba) in ufshcd_get_uic_cmd_result() argument
874 return ufshcd_readl(hba, REG_UIC_COMMAND_ARG_2) & in ufshcd_get_uic_cmd_result()
879 * ufshcd_get_dme_attr_val - Get the value of attribute returned by UIC command
880 * @hba: Pointer to adapter instance
884 * Return: 0 on success; non-zero value on error.
886 static inline u32 ufshcd_get_dme_attr_val(struct ufs_hba *hba) in ufshcd_get_dme_attr_val() argument
888 return ufshcd_readl(hba, REG_UIC_COMMAND_ARG_3); in ufshcd_get_dme_attr_val()
892 * ufshcd_get_req_rsp - returns the TR response transaction type
900 return ucd_rsp_ptr->header.transaction_code; in ufshcd_get_req_rsp()
904 * ufshcd_is_exception_event - Check if the device raised an exception event
914 return ucd_rsp_ptr->header.device_information & 1; in ufshcd_is_exception_event()
918 * ufshcd_reset_intr_aggr - Reset interrupt aggregation values.
919 * @hba: per adapter instance
922 ufshcd_reset_intr_aggr(struct ufs_hba *hba) in ufshcd_reset_intr_aggr() argument
924 ufshcd_writel(hba, INT_AGGR_ENABLE | in ufshcd_reset_intr_aggr()
930 * ufshcd_config_intr_aggr - Configure interrupt aggregation values.
931 * @hba: per adapter instance
936 ufshcd_config_intr_aggr(struct ufs_hba *hba, u8 cnt, u8 tmout) in ufshcd_config_intr_aggr() argument
938 ufshcd_writel(hba, INT_AGGR_ENABLE | INT_AGGR_PARAM_WRITE | in ufshcd_config_intr_aggr()
945 * ufshcd_disable_intr_aggr - Disables interrupt aggregation.
946 * @hba: per adapter instance
948 static inline void ufshcd_disable_intr_aggr(struct ufs_hba *hba) in ufshcd_disable_intr_aggr() argument
950 ufshcd_writel(hba, 0, REG_UTP_TRANSFER_REQ_INT_AGG_CONTROL); in ufshcd_disable_intr_aggr()
954 * ufshcd_enable_run_stop_reg - Enable run-stop registers,
955 * When run-stop registers are set to 1, it indicates the
957 * @hba: per adapter instance
959 static void ufshcd_enable_run_stop_reg(struct ufs_hba *hba) in ufshcd_enable_run_stop_reg() argument
961 ufshcd_writel(hba, UTP_TASK_REQ_LIST_RUN_STOP_BIT, in ufshcd_enable_run_stop_reg()
963 ufshcd_writel(hba, UTP_TRANSFER_REQ_LIST_RUN_STOP_BIT, in ufshcd_enable_run_stop_reg()
968 * ufshcd_hba_start - Start controller initialization sequence
969 * @hba: per adapter instance
971 static inline void ufshcd_hba_start(struct ufs_hba *hba) in ufshcd_hba_start() argument
975 if (ufshcd_crypto_enable(hba)) in ufshcd_hba_start()
978 ufshcd_writel(hba, val, REG_CONTROLLER_ENABLE); in ufshcd_hba_start()
982 * ufshcd_is_hba_active - Get controller state
983 * @hba: per adapter instance
987 bool ufshcd_is_hba_active(struct ufs_hba *hba) in ufshcd_is_hba_active() argument
989 return ufshcd_readl(hba, REG_CONTROLLER_ENABLE) & CONTROLLER_ENABLE; in ufshcd_is_hba_active()
993 u32 ufshcd_get_local_unipro_ver(struct ufs_hba *hba) in ufshcd_get_local_unipro_ver() argument
996 if (hba->ufs_version <= ufshci_version(1, 1)) in ufshcd_get_local_unipro_ver()
1003 static bool ufshcd_is_unipro_pa_params_tuning_req(struct ufs_hba *hba) in ufshcd_is_unipro_pa_params_tuning_req() argument
1014 return ufshcd_get_local_unipro_ver(hba) < UFS_UNIPRO_VER_1_6; in ufshcd_is_unipro_pa_params_tuning_req()
1018 * ufshcd_set_clk_freq - set UFS controller clock frequencies
1019 * @hba: per adapter instance
1024 static int ufshcd_set_clk_freq(struct ufs_hba *hba, bool scale_up) in ufshcd_set_clk_freq() argument
1028 struct list_head *head = &hba->clk_list_head; in ufshcd_set_clk_freq()
1034 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_set_clk_freq()
1035 if (scale_up && clki->max_freq) { in ufshcd_set_clk_freq()
1036 if (clki->curr_freq == clki->max_freq) in ufshcd_set_clk_freq()
1039 ret = clk_set_rate(clki->clk, clki->max_freq); in ufshcd_set_clk_freq()
1041 dev_err(hba->dev, "%s: %s clk set rate(%dHz) failed, %d\n", in ufshcd_set_clk_freq()
1042 __func__, clki->name, in ufshcd_set_clk_freq()
1043 clki->max_freq, ret); in ufshcd_set_clk_freq()
1046 trace_ufshcd_clk_scaling(dev_name(hba->dev), in ufshcd_set_clk_freq()
1047 "scaled up", clki->name, in ufshcd_set_clk_freq()
1048 clki->curr_freq, in ufshcd_set_clk_freq()
1049 clki->max_freq); in ufshcd_set_clk_freq()
1051 clki->curr_freq = clki->max_freq; in ufshcd_set_clk_freq()
1053 } else if (!scale_up && clki->min_freq) { in ufshcd_set_clk_freq()
1054 if (clki->curr_freq == clki->min_freq) in ufshcd_set_clk_freq()
1057 ret = clk_set_rate(clki->clk, clki->min_freq); in ufshcd_set_clk_freq()
1059 dev_err(hba->dev, "%s: %s clk set rate(%dHz) failed, %d\n", in ufshcd_set_clk_freq()
1060 __func__, clki->name, in ufshcd_set_clk_freq()
1061 clki->min_freq, ret); in ufshcd_set_clk_freq()
1064 trace_ufshcd_clk_scaling(dev_name(hba->dev), in ufshcd_set_clk_freq()
1065 "scaled down", clki->name, in ufshcd_set_clk_freq()
1066 clki->curr_freq, in ufshcd_set_clk_freq()
1067 clki->min_freq); in ufshcd_set_clk_freq()
1068 clki->curr_freq = clki->min_freq; in ufshcd_set_clk_freq()
1071 dev_dbg(hba->dev, "%s: clk: %s, rate: %lu\n", __func__, in ufshcd_set_clk_freq()
1072 clki->name, clk_get_rate(clki->clk)); in ufshcd_set_clk_freq()
1083 struct ufs_hba *hba = dev_get_drvdata(dev); in ufshcd_opp_config_clks() local
1084 struct list_head *head = &hba->clk_list_head; in ufshcd_opp_config_clks()
1091 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_opp_config_clks()
1098 ret = clk_set_rate(clki->clk, freq); in ufshcd_opp_config_clks()
1101 __func__, clki->name, freq, ret); in ufshcd_opp_config_clks()
1107 clki->name, hba->clk_scaling.target_freq, freq); in ufshcd_opp_config_clks()
1115 static int ufshcd_opp_set_rate(struct ufs_hba *hba, unsigned long freq) in ufshcd_opp_set_rate() argument
1120 opp = dev_pm_opp_find_freq_floor_indexed(hba->dev, in ufshcd_opp_set_rate()
1125 ret = dev_pm_opp_set_opp(hba->dev, opp); in ufshcd_opp_set_rate()
1132 * ufshcd_scale_clks - scale up or scale down UFS controller clocks
1133 * @hba: per adapter instance
1139 static int ufshcd_scale_clks(struct ufs_hba *hba, unsigned long freq, in ufshcd_scale_clks() argument
1145 ret = ufshcd_vops_clk_scale_notify(hba, scale_up, PRE_CHANGE); in ufshcd_scale_clks()
1149 if (hba->use_pm_opp) in ufshcd_scale_clks()
1150 ret = ufshcd_opp_set_rate(hba, freq); in ufshcd_scale_clks()
1152 ret = ufshcd_set_clk_freq(hba, scale_up); in ufshcd_scale_clks()
1156 ret = ufshcd_vops_clk_scale_notify(hba, scale_up, POST_CHANGE); in ufshcd_scale_clks()
1158 if (hba->use_pm_opp) in ufshcd_scale_clks()
1159 ufshcd_opp_set_rate(hba, in ufshcd_scale_clks()
1160 hba->devfreq->previous_freq); in ufshcd_scale_clks()
1162 ufshcd_set_clk_freq(hba, !scale_up); in ufshcd_scale_clks()
1166 trace_ufshcd_profile_clk_scaling(dev_name(hba->dev), in ufshcd_scale_clks()
1173 * ufshcd_is_devfreq_scaling_required - check if scaling is required or not
1174 * @hba: per adapter instance
1180 static bool ufshcd_is_devfreq_scaling_required(struct ufs_hba *hba, in ufshcd_is_devfreq_scaling_required() argument
1184 struct list_head *head = &hba->clk_list_head; in ufshcd_is_devfreq_scaling_required()
1189 if (hba->use_pm_opp) in ufshcd_is_devfreq_scaling_required()
1190 return freq != hba->clk_scaling.target_freq; in ufshcd_is_devfreq_scaling_required()
1193 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_is_devfreq_scaling_required()
1194 if (scale_up && clki->max_freq) { in ufshcd_is_devfreq_scaling_required()
1195 if (clki->curr_freq == clki->max_freq) in ufshcd_is_devfreq_scaling_required()
1198 } else if (!scale_up && clki->min_freq) { in ufshcd_is_devfreq_scaling_required()
1199 if (clki->curr_freq == clki->min_freq) in ufshcd_is_devfreq_scaling_required()
1216 static u32 ufshcd_pending_cmds(struct ufs_hba *hba) in ufshcd_pending_cmds() argument
1221 lockdep_assert_held(hba->host->host_lock); in ufshcd_pending_cmds()
1222 __shost_for_each_device(sdev, hba->host) in ufshcd_pending_cmds()
1223 pending += sbitmap_weight(&sdev->budget_map); in ufshcd_pending_cmds()
1232 * Return: 0 upon success; -EBUSY upon timeout.
1234 static int ufshcd_wait_for_doorbell_clr(struct ufs_hba *hba, in ufshcd_wait_for_doorbell_clr() argument
1244 ufshcd_hold(hba); in ufshcd_wait_for_doorbell_clr()
1245 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_wait_for_doorbell_clr()
1252 if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) { in ufshcd_wait_for_doorbell_clr()
1253 ret = -EBUSY; in ufshcd_wait_for_doorbell_clr()
1257 tm_doorbell = ufshcd_readl(hba, REG_UTP_TASK_REQ_DOOR_BELL); in ufshcd_wait_for_doorbell_clr()
1258 tr_pending = ufshcd_pending_cmds(hba); in ufshcd_wait_for_doorbell_clr()
1266 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_wait_for_doorbell_clr()
1278 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_wait_for_doorbell_clr()
1282 dev_err(hba->dev, in ufshcd_wait_for_doorbell_clr()
1285 ret = -EBUSY; in ufshcd_wait_for_doorbell_clr()
1288 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_wait_for_doorbell_clr()
1289 ufshcd_release(hba); in ufshcd_wait_for_doorbell_clr()
1294 * ufshcd_scale_gear - scale up/down UFS gear
1295 * @hba: per adapter instance
1298 * Return: 0 for success; -EBUSY if scaling can't happen at this time;
1299 * non-zero for any other errors.
1301 static int ufshcd_scale_gear(struct ufs_hba *hba, bool scale_up) in ufshcd_scale_gear() argument
1307 memcpy(&new_pwr_info, &hba->clk_scaling.saved_pwr_info, in ufshcd_scale_gear()
1310 memcpy(&new_pwr_info, &hba->pwr_info, in ufshcd_scale_gear()
1313 if (hba->pwr_info.gear_tx > hba->clk_scaling.min_gear || in ufshcd_scale_gear()
1314 hba->pwr_info.gear_rx > hba->clk_scaling.min_gear) { in ufshcd_scale_gear()
1316 memcpy(&hba->clk_scaling.saved_pwr_info, in ufshcd_scale_gear()
1317 &hba->pwr_info, in ufshcd_scale_gear()
1321 new_pwr_info.gear_tx = hba->clk_scaling.min_gear; in ufshcd_scale_gear()
1322 new_pwr_info.gear_rx = hba->clk_scaling.min_gear; in ufshcd_scale_gear()
1327 ret = ufshcd_config_pwr_mode(hba, &new_pwr_info); in ufshcd_scale_gear()
1329 dev_err(hba->dev, "%s: failed err %d, old gear: (tx %d rx %d), new gear: (tx %d rx %d)", in ufshcd_scale_gear()
1331 hba->pwr_info.gear_tx, hba->pwr_info.gear_rx, in ufshcd_scale_gear()
1341 * Return: 0 upon success; -EBUSY upon timeout.
1343 static int ufshcd_clock_scaling_prepare(struct ufs_hba *hba, u64 timeout_us) in ufshcd_clock_scaling_prepare() argument
1350 ufshcd_scsi_block_requests(hba); in ufshcd_clock_scaling_prepare()
1351 mutex_lock(&hba->wb_mutex); in ufshcd_clock_scaling_prepare()
1352 down_write(&hba->clk_scaling_lock); in ufshcd_clock_scaling_prepare()
1354 if (!hba->clk_scaling.is_allowed || in ufshcd_clock_scaling_prepare()
1355 ufshcd_wait_for_doorbell_clr(hba, timeout_us)) { in ufshcd_clock_scaling_prepare()
1356 ret = -EBUSY; in ufshcd_clock_scaling_prepare()
1357 up_write(&hba->clk_scaling_lock); in ufshcd_clock_scaling_prepare()
1358 mutex_unlock(&hba->wb_mutex); in ufshcd_clock_scaling_prepare()
1359 ufshcd_scsi_unblock_requests(hba); in ufshcd_clock_scaling_prepare()
1364 ufshcd_hold(hba); in ufshcd_clock_scaling_prepare()
1370 static void ufshcd_clock_scaling_unprepare(struct ufs_hba *hba, int err, bool scale_up) in ufshcd_clock_scaling_unprepare() argument
1372 up_write(&hba->clk_scaling_lock); in ufshcd_clock_scaling_unprepare()
1375 if (ufshcd_enable_wb_if_scaling_up(hba) && !err) in ufshcd_clock_scaling_unprepare()
1376 ufshcd_wb_toggle(hba, scale_up); in ufshcd_clock_scaling_unprepare()
1378 mutex_unlock(&hba->wb_mutex); in ufshcd_clock_scaling_unprepare()
1380 ufshcd_scsi_unblock_requests(hba); in ufshcd_clock_scaling_unprepare()
1381 ufshcd_release(hba); in ufshcd_clock_scaling_unprepare()
1385 * ufshcd_devfreq_scale - scale up/down UFS clocks and gear
1386 * @hba: per adapter instance
1390 * Return: 0 for success; -EBUSY if scaling can't happen at this time; non-zero
1393 static int ufshcd_devfreq_scale(struct ufs_hba *hba, unsigned long freq, in ufshcd_devfreq_scale() argument
1398 ret = ufshcd_clock_scaling_prepare(hba, 1 * USEC_PER_SEC); in ufshcd_devfreq_scale()
1404 ret = ufshcd_scale_gear(hba, false); in ufshcd_devfreq_scale()
1409 ret = ufshcd_scale_clks(hba, freq, scale_up); in ufshcd_devfreq_scale()
1412 ufshcd_scale_gear(hba, true); in ufshcd_devfreq_scale()
1418 ret = ufshcd_scale_gear(hba, true); in ufshcd_devfreq_scale()
1420 ufshcd_scale_clks(hba, hba->devfreq->previous_freq, in ufshcd_devfreq_scale()
1427 ufshcd_clock_scaling_unprepare(hba, ret, scale_up); in ufshcd_devfreq_scale()
1433 struct ufs_hba *hba = container_of(work, struct ufs_hba, in ufshcd_clk_scaling_suspend_work() local
1437 spin_lock_irqsave(hba->host->host_lock, irq_flags); in ufshcd_clk_scaling_suspend_work()
1438 if (hba->clk_scaling.active_reqs || hba->clk_scaling.is_suspended) { in ufshcd_clk_scaling_suspend_work()
1439 spin_unlock_irqrestore(hba->host->host_lock, irq_flags); in ufshcd_clk_scaling_suspend_work()
1442 hba->clk_scaling.is_suspended = true; in ufshcd_clk_scaling_suspend_work()
1443 hba->clk_scaling.window_start_t = 0; in ufshcd_clk_scaling_suspend_work()
1444 spin_unlock_irqrestore(hba->host->host_lock, irq_flags); in ufshcd_clk_scaling_suspend_work()
1446 devfreq_suspend_device(hba->devfreq); in ufshcd_clk_scaling_suspend_work()
1451 struct ufs_hba *hba = container_of(work, struct ufs_hba, in ufshcd_clk_scaling_resume_work() local
1455 spin_lock_irqsave(hba->host->host_lock, irq_flags); in ufshcd_clk_scaling_resume_work()
1456 if (!hba->clk_scaling.is_suspended) { in ufshcd_clk_scaling_resume_work()
1457 spin_unlock_irqrestore(hba->host->host_lock, irq_flags); in ufshcd_clk_scaling_resume_work()
1460 hba->clk_scaling.is_suspended = false; in ufshcd_clk_scaling_resume_work()
1461 spin_unlock_irqrestore(hba->host->host_lock, irq_flags); in ufshcd_clk_scaling_resume_work()
1463 devfreq_resume_device(hba->devfreq); in ufshcd_clk_scaling_resume_work()
1470 struct ufs_hba *hba = dev_get_drvdata(dev); in ufshcd_devfreq_target() local
1473 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_target()
1477 if (!ufshcd_is_clkscaling_supported(hba)) in ufshcd_devfreq_target()
1478 return -EINVAL; in ufshcd_devfreq_target()
1480 if (hba->use_pm_opp) { in ufshcd_devfreq_target()
1491 clki = list_first_entry(&hba->clk_list_head, struct ufs_clk_info, in ufshcd_devfreq_target()
1493 *freq = (unsigned long) clk_round_rate(clki->clk, *freq); in ufshcd_devfreq_target()
1496 spin_lock_irqsave(hba->host->host_lock, irq_flags); in ufshcd_devfreq_target()
1497 if (ufshcd_eh_in_progress(hba)) { in ufshcd_devfreq_target()
1498 spin_unlock_irqrestore(hba->host->host_lock, irq_flags); in ufshcd_devfreq_target()
1503 if (hba->clk_scaling.is_suspended) { in ufshcd_devfreq_target()
1504 spin_unlock_irqrestore(hba->host->host_lock, irq_flags); in ufshcd_devfreq_target()
1505 dev_warn(hba->dev, "clock scaling is suspended, skip"); in ufshcd_devfreq_target()
1509 if (!hba->clk_scaling.active_reqs) in ufshcd_devfreq_target()
1513 spin_unlock_irqrestore(hba->host->host_lock, irq_flags); in ufshcd_devfreq_target()
1517 /* Decide based on the target or rounded-off frequency and update */ in ufshcd_devfreq_target()
1518 if (hba->use_pm_opp) in ufshcd_devfreq_target()
1519 scale_up = *freq > hba->clk_scaling.target_freq; in ufshcd_devfreq_target()
1521 scale_up = *freq == clki->max_freq; in ufshcd_devfreq_target()
1523 if (!hba->use_pm_opp && !scale_up) in ufshcd_devfreq_target()
1524 *freq = clki->min_freq; in ufshcd_devfreq_target()
1527 if (!ufshcd_is_devfreq_scaling_required(hba, *freq, scale_up)) { in ufshcd_devfreq_target()
1528 spin_unlock_irqrestore(hba->host->host_lock, irq_flags); in ufshcd_devfreq_target()
1532 spin_unlock_irqrestore(hba->host->host_lock, irq_flags); in ufshcd_devfreq_target()
1535 ret = ufshcd_devfreq_scale(hba, *freq, scale_up); in ufshcd_devfreq_target()
1537 hba->clk_scaling.target_freq = *freq; in ufshcd_devfreq_target()
1539 trace_ufshcd_profile_clk_scaling(dev_name(hba->dev), in ufshcd_devfreq_target()
1545 queue_work(hba->clk_scaling.workq, in ufshcd_devfreq_target()
1546 &hba->clk_scaling.suspend_work); in ufshcd_devfreq_target()
1554 struct ufs_hba *hba = dev_get_drvdata(dev); in ufshcd_devfreq_get_dev_status() local
1555 struct ufs_clk_scaling *scaling = &hba->clk_scaling; in ufshcd_devfreq_get_dev_status()
1559 if (!ufshcd_is_clkscaling_supported(hba)) in ufshcd_devfreq_get_dev_status()
1560 return -EINVAL; in ufshcd_devfreq_get_dev_status()
1564 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_devfreq_get_dev_status()
1566 if (!scaling->window_start_t) in ufshcd_devfreq_get_dev_status()
1574 if (hba->use_pm_opp) { in ufshcd_devfreq_get_dev_status()
1575 stat->current_frequency = hba->clk_scaling.target_freq; in ufshcd_devfreq_get_dev_status()
1577 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_get_dev_status()
1581 stat->current_frequency = clki->curr_freq; in ufshcd_devfreq_get_dev_status()
1584 if (scaling->is_busy_started) in ufshcd_devfreq_get_dev_status()
1585 scaling->tot_busy_t += ktime_us_delta(curr_t, in ufshcd_devfreq_get_dev_status()
1586 scaling->busy_start_t); in ufshcd_devfreq_get_dev_status()
1587 stat->total_time = ktime_us_delta(curr_t, scaling->window_start_t); in ufshcd_devfreq_get_dev_status()
1588 stat->busy_time = scaling->tot_busy_t; in ufshcd_devfreq_get_dev_status()
1590 scaling->window_start_t = curr_t; in ufshcd_devfreq_get_dev_status()
1591 scaling->tot_busy_t = 0; in ufshcd_devfreq_get_dev_status()
1593 if (scaling->active_reqs) { in ufshcd_devfreq_get_dev_status()
1594 scaling->busy_start_t = curr_t; in ufshcd_devfreq_get_dev_status()
1595 scaling->is_busy_started = true; in ufshcd_devfreq_get_dev_status()
1597 scaling->busy_start_t = 0; in ufshcd_devfreq_get_dev_status()
1598 scaling->is_busy_started = false; in ufshcd_devfreq_get_dev_status()
1600 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_devfreq_get_dev_status()
1604 static int ufshcd_devfreq_init(struct ufs_hba *hba) in ufshcd_devfreq_init() argument
1606 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_init()
1615 if (!hba->use_pm_opp) { in ufshcd_devfreq_init()
1617 dev_pm_opp_add(hba->dev, clki->min_freq, 0); in ufshcd_devfreq_init()
1618 dev_pm_opp_add(hba->dev, clki->max_freq, 0); in ufshcd_devfreq_init()
1621 ufshcd_vops_config_scaling_param(hba, &hba->vps->devfreq_profile, in ufshcd_devfreq_init()
1622 &hba->vps->ondemand_data); in ufshcd_devfreq_init()
1623 devfreq = devfreq_add_device(hba->dev, in ufshcd_devfreq_init()
1624 &hba->vps->devfreq_profile, in ufshcd_devfreq_init()
1626 &hba->vps->ondemand_data); in ufshcd_devfreq_init()
1629 dev_err(hba->dev, "Unable to register with devfreq %d\n", ret); in ufshcd_devfreq_init()
1631 if (!hba->use_pm_opp) { in ufshcd_devfreq_init()
1632 dev_pm_opp_remove(hba->dev, clki->min_freq); in ufshcd_devfreq_init()
1633 dev_pm_opp_remove(hba->dev, clki->max_freq); in ufshcd_devfreq_init()
1638 hba->devfreq = devfreq; in ufshcd_devfreq_init()
1643 static void ufshcd_devfreq_remove(struct ufs_hba *hba) in ufshcd_devfreq_remove() argument
1645 struct list_head *clk_list = &hba->clk_list_head; in ufshcd_devfreq_remove()
1647 if (!hba->devfreq) in ufshcd_devfreq_remove()
1650 devfreq_remove_device(hba->devfreq); in ufshcd_devfreq_remove()
1651 hba->devfreq = NULL; in ufshcd_devfreq_remove()
1653 if (!hba->use_pm_opp) { in ufshcd_devfreq_remove()
1657 dev_pm_opp_remove(hba->dev, clki->min_freq); in ufshcd_devfreq_remove()
1658 dev_pm_opp_remove(hba->dev, clki->max_freq); in ufshcd_devfreq_remove()
1662 static void ufshcd_suspend_clkscaling(struct ufs_hba *hba) in ufshcd_suspend_clkscaling() argument
1667 cancel_work_sync(&hba->clk_scaling.suspend_work); in ufshcd_suspend_clkscaling()
1668 cancel_work_sync(&hba->clk_scaling.resume_work); in ufshcd_suspend_clkscaling()
1670 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_suspend_clkscaling()
1671 if (!hba->clk_scaling.is_suspended) { in ufshcd_suspend_clkscaling()
1673 hba->clk_scaling.is_suspended = true; in ufshcd_suspend_clkscaling()
1674 hba->clk_scaling.window_start_t = 0; in ufshcd_suspend_clkscaling()
1676 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_suspend_clkscaling()
1679 devfreq_suspend_device(hba->devfreq); in ufshcd_suspend_clkscaling()
1682 static void ufshcd_resume_clkscaling(struct ufs_hba *hba) in ufshcd_resume_clkscaling() argument
1687 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_resume_clkscaling()
1688 if (hba->clk_scaling.is_suspended) { in ufshcd_resume_clkscaling()
1690 hba->clk_scaling.is_suspended = false; in ufshcd_resume_clkscaling()
1692 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_resume_clkscaling()
1695 devfreq_resume_device(hba->devfreq); in ufshcd_resume_clkscaling()
1701 struct ufs_hba *hba = dev_get_drvdata(dev); in ufshcd_clkscale_enable_show() local
1703 return sysfs_emit(buf, "%d\n", hba->clk_scaling.is_enabled); in ufshcd_clkscale_enable_show()
1709 struct ufs_hba *hba = dev_get_drvdata(dev); in ufshcd_clkscale_enable_store() local
1714 return -EINVAL; in ufshcd_clkscale_enable_store()
1716 down(&hba->host_sem); in ufshcd_clkscale_enable_store()
1717 if (!ufshcd_is_user_access_allowed(hba)) { in ufshcd_clkscale_enable_store()
1718 err = -EBUSY; in ufshcd_clkscale_enable_store()
1723 if (value == hba->clk_scaling.is_enabled) in ufshcd_clkscale_enable_store()
1726 ufshcd_rpm_get_sync(hba); in ufshcd_clkscale_enable_store()
1727 ufshcd_hold(hba); in ufshcd_clkscale_enable_store()
1729 hba->clk_scaling.is_enabled = value; in ufshcd_clkscale_enable_store()
1732 ufshcd_resume_clkscaling(hba); in ufshcd_clkscale_enable_store()
1734 ufshcd_suspend_clkscaling(hba); in ufshcd_clkscale_enable_store()
1735 err = ufshcd_devfreq_scale(hba, ULONG_MAX, true); in ufshcd_clkscale_enable_store()
1737 dev_err(hba->dev, "%s: failed to scale clocks up %d\n", in ufshcd_clkscale_enable_store()
1741 ufshcd_release(hba); in ufshcd_clkscale_enable_store()
1742 ufshcd_rpm_put_sync(hba); in ufshcd_clkscale_enable_store()
1744 up(&hba->host_sem); in ufshcd_clkscale_enable_store()
1748 static void ufshcd_init_clk_scaling_sysfs(struct ufs_hba *hba) in ufshcd_init_clk_scaling_sysfs() argument
1750 hba->clk_scaling.enable_attr.show = ufshcd_clkscale_enable_show; in ufshcd_init_clk_scaling_sysfs()
1751 hba->clk_scaling.enable_attr.store = ufshcd_clkscale_enable_store; in ufshcd_init_clk_scaling_sysfs()
1752 sysfs_attr_init(&hba->clk_scaling.enable_attr.attr); in ufshcd_init_clk_scaling_sysfs()
1753 hba->clk_scaling.enable_attr.attr.name = "clkscale_enable"; in ufshcd_init_clk_scaling_sysfs()
1754 hba->clk_scaling.enable_attr.attr.mode = 0644; in ufshcd_init_clk_scaling_sysfs()
1755 if (device_create_file(hba->dev, &hba->clk_scaling.enable_attr)) in ufshcd_init_clk_scaling_sysfs()
1756 dev_err(hba->dev, "Failed to create sysfs for clkscale_enable\n"); in ufshcd_init_clk_scaling_sysfs()
1759 static void ufshcd_remove_clk_scaling_sysfs(struct ufs_hba *hba) in ufshcd_remove_clk_scaling_sysfs() argument
1761 if (hba->clk_scaling.enable_attr.attr.name) in ufshcd_remove_clk_scaling_sysfs()
1762 device_remove_file(hba->dev, &hba->clk_scaling.enable_attr); in ufshcd_remove_clk_scaling_sysfs()
1765 static void ufshcd_init_clk_scaling(struct ufs_hba *hba) in ufshcd_init_clk_scaling() argument
1769 if (!ufshcd_is_clkscaling_supported(hba)) in ufshcd_init_clk_scaling()
1772 if (!hba->clk_scaling.min_gear) in ufshcd_init_clk_scaling()
1773 hba->clk_scaling.min_gear = UFS_HS_G1; in ufshcd_init_clk_scaling()
1775 INIT_WORK(&hba->clk_scaling.suspend_work, in ufshcd_init_clk_scaling()
1777 INIT_WORK(&hba->clk_scaling.resume_work, in ufshcd_init_clk_scaling()
1781 hba->host->host_no); in ufshcd_init_clk_scaling()
1782 hba->clk_scaling.workq = create_singlethread_workqueue(wq_name); in ufshcd_init_clk_scaling()
1784 hba->clk_scaling.is_initialized = true; in ufshcd_init_clk_scaling()
1787 static void ufshcd_exit_clk_scaling(struct ufs_hba *hba) in ufshcd_exit_clk_scaling() argument
1789 if (!hba->clk_scaling.is_initialized) in ufshcd_exit_clk_scaling()
1792 ufshcd_remove_clk_scaling_sysfs(hba); in ufshcd_exit_clk_scaling()
1793 destroy_workqueue(hba->clk_scaling.workq); in ufshcd_exit_clk_scaling()
1794 ufshcd_devfreq_remove(hba); in ufshcd_exit_clk_scaling()
1795 hba->clk_scaling.is_initialized = false; in ufshcd_exit_clk_scaling()
1802 struct ufs_hba *hba = container_of(work, struct ufs_hba, in ufshcd_ungate_work() local
1805 cancel_delayed_work_sync(&hba->clk_gating.gate_work); in ufshcd_ungate_work()
1807 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_ungate_work()
1808 if (hba->clk_gating.state == CLKS_ON) { in ufshcd_ungate_work()
1809 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_ungate_work()
1813 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_ungate_work()
1814 ufshcd_hba_vreg_set_hpm(hba); in ufshcd_ungate_work()
1815 ufshcd_setup_clocks(hba, true); in ufshcd_ungate_work()
1817 ufshcd_enable_irq(hba); in ufshcd_ungate_work()
1820 if (ufshcd_can_hibern8_during_gating(hba)) { in ufshcd_ungate_work()
1822 hba->clk_gating.is_suspended = true; in ufshcd_ungate_work()
1823 if (ufshcd_is_link_hibern8(hba)) { in ufshcd_ungate_work()
1824 ret = ufshcd_uic_hibern8_exit(hba); in ufshcd_ungate_work()
1826 dev_err(hba->dev, "%s: hibern8 exit failed %d\n", in ufshcd_ungate_work()
1829 ufshcd_set_link_active(hba); in ufshcd_ungate_work()
1831 hba->clk_gating.is_suspended = false; in ufshcd_ungate_work()
1836 * ufshcd_hold - Enable clocks that were gated earlier due to ufshcd_release.
1838 * @hba: per adapter instance
1840 void ufshcd_hold(struct ufs_hba *hba) in ufshcd_hold() argument
1845 if (!ufshcd_is_clkgating_allowed(hba) || in ufshcd_hold()
1846 !hba->clk_gating.is_initialized) in ufshcd_hold()
1848 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_hold()
1849 hba->clk_gating.active_reqs++; in ufshcd_hold()
1852 switch (hba->clk_gating.state) { in ufshcd_hold()
1862 if (ufshcd_can_hibern8_during_gating(hba) && in ufshcd_hold()
1863 ufshcd_is_link_hibern8(hba)) { in ufshcd_hold()
1864 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_hold()
1865 flush_result = flush_work(&hba->clk_gating.ungate_work); in ufshcd_hold()
1866 if (hba->clk_gating.is_suspended && !flush_result) in ufshcd_hold()
1868 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_hold()
1873 if (cancel_delayed_work(&hba->clk_gating.gate_work)) { in ufshcd_hold()
1874 hba->clk_gating.state = CLKS_ON; in ufshcd_hold()
1875 trace_ufshcd_clk_gating(dev_name(hba->dev), in ufshcd_hold()
1876 hba->clk_gating.state); in ufshcd_hold()
1886 hba->clk_gating.state = REQ_CLKS_ON; in ufshcd_hold()
1887 trace_ufshcd_clk_gating(dev_name(hba->dev), in ufshcd_hold()
1888 hba->clk_gating.state); in ufshcd_hold()
1889 queue_work(hba->clk_gating.clk_gating_workq, in ufshcd_hold()
1890 &hba->clk_gating.ungate_work); in ufshcd_hold()
1897 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_hold()
1898 flush_work(&hba->clk_gating.ungate_work); in ufshcd_hold()
1900 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_hold()
1903 dev_err(hba->dev, "%s: clk gating is in invalid state %d\n", in ufshcd_hold()
1904 __func__, hba->clk_gating.state); in ufshcd_hold()
1907 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_hold()
1913 struct ufs_hba *hba = container_of(work, struct ufs_hba, in ufshcd_gate_work() local
1918 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_gate_work()
1925 if (hba->clk_gating.is_suspended || in ufshcd_gate_work()
1926 (hba->clk_gating.state != REQ_CLKS_OFF)) { in ufshcd_gate_work()
1927 hba->clk_gating.state = CLKS_ON; in ufshcd_gate_work()
1928 trace_ufshcd_clk_gating(dev_name(hba->dev), in ufshcd_gate_work()
1929 hba->clk_gating.state); in ufshcd_gate_work()
1933 if (ufshcd_is_ufs_dev_busy(hba) || hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) in ufshcd_gate_work()
1936 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_gate_work()
1939 if (ufshcd_can_hibern8_during_gating(hba)) { in ufshcd_gate_work()
1940 ret = ufshcd_uic_hibern8_enter(hba); in ufshcd_gate_work()
1942 hba->clk_gating.state = CLKS_ON; in ufshcd_gate_work()
1943 dev_err(hba->dev, "%s: hibern8 enter failed %d\n", in ufshcd_gate_work()
1945 trace_ufshcd_clk_gating(dev_name(hba->dev), in ufshcd_gate_work()
1946 hba->clk_gating.state); in ufshcd_gate_work()
1949 ufshcd_set_link_hibern8(hba); in ufshcd_gate_work()
1952 ufshcd_disable_irq(hba); in ufshcd_gate_work()
1954 ufshcd_setup_clocks(hba, false); in ufshcd_gate_work()
1957 ufshcd_hba_vreg_set_lpm(hba); in ufshcd_gate_work()
1967 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_gate_work()
1968 if (hba->clk_gating.state == REQ_CLKS_OFF) { in ufshcd_gate_work()
1969 hba->clk_gating.state = CLKS_OFF; in ufshcd_gate_work()
1970 trace_ufshcd_clk_gating(dev_name(hba->dev), in ufshcd_gate_work()
1971 hba->clk_gating.state); in ufshcd_gate_work()
1974 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_gate_work()
1980 static void __ufshcd_release(struct ufs_hba *hba) in __ufshcd_release() argument
1982 if (!ufshcd_is_clkgating_allowed(hba)) in __ufshcd_release()
1985 hba->clk_gating.active_reqs--; in __ufshcd_release()
1987 if (hba->clk_gating.active_reqs || hba->clk_gating.is_suspended || in __ufshcd_release()
1988 hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL || in __ufshcd_release()
1989 hba->outstanding_tasks || !hba->clk_gating.is_initialized || in __ufshcd_release()
1990 hba->active_uic_cmd || hba->uic_async_done || in __ufshcd_release()
1991 hba->clk_gating.state == CLKS_OFF) in __ufshcd_release()
1994 hba->clk_gating.state = REQ_CLKS_OFF; in __ufshcd_release()
1995 trace_ufshcd_clk_gating(dev_name(hba->dev), hba->clk_gating.state); in __ufshcd_release()
1996 queue_delayed_work(hba->clk_gating.clk_gating_workq, in __ufshcd_release()
1997 &hba->clk_gating.gate_work, in __ufshcd_release()
1998 msecs_to_jiffies(hba->clk_gating.delay_ms)); in __ufshcd_release()
2001 void ufshcd_release(struct ufs_hba *hba) in ufshcd_release() argument
2005 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_release()
2006 __ufshcd_release(hba); in ufshcd_release()
2007 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_release()
2014 struct ufs_hba *hba = dev_get_drvdata(dev); in ufshcd_clkgate_delay_show() local
2016 return sysfs_emit(buf, "%lu\n", hba->clk_gating.delay_ms); in ufshcd_clkgate_delay_show()
2021 struct ufs_hba *hba = dev_get_drvdata(dev); in ufshcd_clkgate_delay_set() local
2024 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_clkgate_delay_set()
2025 hba->clk_gating.delay_ms = value; in ufshcd_clkgate_delay_set()
2026 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_clkgate_delay_set()
2036 return -EINVAL; in ufshcd_clkgate_delay_store()
2045 struct ufs_hba *hba = dev_get_drvdata(dev); in ufshcd_clkgate_enable_show() local
2047 return sysfs_emit(buf, "%d\n", hba->clk_gating.is_enabled); in ufshcd_clkgate_enable_show()
2053 struct ufs_hba *hba = dev_get_drvdata(dev); in ufshcd_clkgate_enable_store() local
2058 return -EINVAL; in ufshcd_clkgate_enable_store()
2062 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_clkgate_enable_store()
2063 if (value == hba->clk_gating.is_enabled) in ufshcd_clkgate_enable_store()
2067 __ufshcd_release(hba); in ufshcd_clkgate_enable_store()
2069 hba->clk_gating.active_reqs++; in ufshcd_clkgate_enable_store()
2071 hba->clk_gating.is_enabled = value; in ufshcd_clkgate_enable_store()
2073 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_clkgate_enable_store()
2077 static void ufshcd_init_clk_gating_sysfs(struct ufs_hba *hba) in ufshcd_init_clk_gating_sysfs() argument
2079 hba->clk_gating.delay_attr.show = ufshcd_clkgate_delay_show; in ufshcd_init_clk_gating_sysfs()
2080 hba->clk_gating.delay_attr.store = ufshcd_clkgate_delay_store; in ufshcd_init_clk_gating_sysfs()
2081 sysfs_attr_init(&hba->clk_gating.delay_attr.attr); in ufshcd_init_clk_gating_sysfs()
2082 hba->clk_gating.delay_attr.attr.name = "clkgate_delay_ms"; in ufshcd_init_clk_gating_sysfs()
2083 hba->clk_gating.delay_attr.attr.mode = 0644; in ufshcd_init_clk_gating_sysfs()
2084 if (device_create_file(hba->dev, &hba->clk_gating.delay_attr)) in ufshcd_init_clk_gating_sysfs()
2085 dev_err(hba->dev, "Failed to create sysfs for clkgate_delay\n"); in ufshcd_init_clk_gating_sysfs()
2087 hba->clk_gating.enable_attr.show = ufshcd_clkgate_enable_show; in ufshcd_init_clk_gating_sysfs()
2088 hba->clk_gating.enable_attr.store = ufshcd_clkgate_enable_store; in ufshcd_init_clk_gating_sysfs()
2089 sysfs_attr_init(&hba->clk_gating.enable_attr.attr); in ufshcd_init_clk_gating_sysfs()
2090 hba->clk_gating.enable_attr.attr.name = "clkgate_enable"; in ufshcd_init_clk_gating_sysfs()
2091 hba->clk_gating.enable_attr.attr.mode = 0644; in ufshcd_init_clk_gating_sysfs()
2092 if (device_create_file(hba->dev, &hba->clk_gating.enable_attr)) in ufshcd_init_clk_gating_sysfs()
2093 dev_err(hba->dev, "Failed to create sysfs for clkgate_enable\n"); in ufshcd_init_clk_gating_sysfs()
2096 static void ufshcd_remove_clk_gating_sysfs(struct ufs_hba *hba) in ufshcd_remove_clk_gating_sysfs() argument
2098 if (hba->clk_gating.delay_attr.attr.name) in ufshcd_remove_clk_gating_sysfs()
2099 device_remove_file(hba->dev, &hba->clk_gating.delay_attr); in ufshcd_remove_clk_gating_sysfs()
2100 if (hba->clk_gating.enable_attr.attr.name) in ufshcd_remove_clk_gating_sysfs()
2101 device_remove_file(hba->dev, &hba->clk_gating.enable_attr); in ufshcd_remove_clk_gating_sysfs()
2104 static void ufshcd_init_clk_gating(struct ufs_hba *hba) in ufshcd_init_clk_gating() argument
2108 if (!ufshcd_is_clkgating_allowed(hba)) in ufshcd_init_clk_gating()
2111 hba->clk_gating.state = CLKS_ON; in ufshcd_init_clk_gating()
2113 hba->clk_gating.delay_ms = 150; in ufshcd_init_clk_gating()
2114 INIT_DELAYED_WORK(&hba->clk_gating.gate_work, ufshcd_gate_work); in ufshcd_init_clk_gating()
2115 INIT_WORK(&hba->clk_gating.ungate_work, ufshcd_ungate_work); in ufshcd_init_clk_gating()
2118 hba->host->host_no); in ufshcd_init_clk_gating()
2119 hba->clk_gating.clk_gating_workq = alloc_ordered_workqueue(wq_name, in ufshcd_init_clk_gating()
2122 ufshcd_init_clk_gating_sysfs(hba); in ufshcd_init_clk_gating()
2124 hba->clk_gating.is_enabled = true; in ufshcd_init_clk_gating()
2125 hba->clk_gating.is_initialized = true; in ufshcd_init_clk_gating()
2128 static void ufshcd_exit_clk_gating(struct ufs_hba *hba) in ufshcd_exit_clk_gating() argument
2130 if (!hba->clk_gating.is_initialized) in ufshcd_exit_clk_gating()
2133 ufshcd_remove_clk_gating_sysfs(hba); in ufshcd_exit_clk_gating()
2136 ufshcd_hold(hba); in ufshcd_exit_clk_gating()
2137 hba->clk_gating.is_initialized = false; in ufshcd_exit_clk_gating()
2138 ufshcd_release(hba); in ufshcd_exit_clk_gating()
2140 destroy_workqueue(hba->clk_gating.clk_gating_workq); in ufshcd_exit_clk_gating()
2143 static void ufshcd_clk_scaling_start_busy(struct ufs_hba *hba) in ufshcd_clk_scaling_start_busy() argument
2149 if (!ufshcd_is_clkscaling_supported(hba)) in ufshcd_clk_scaling_start_busy()
2152 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_clk_scaling_start_busy()
2153 if (!hba->clk_scaling.active_reqs++) in ufshcd_clk_scaling_start_busy()
2156 if (!hba->clk_scaling.is_enabled || hba->pm_op_in_progress) { in ufshcd_clk_scaling_start_busy()
2157 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_clk_scaling_start_busy()
2162 queue_work(hba->clk_scaling.workq, in ufshcd_clk_scaling_start_busy()
2163 &hba->clk_scaling.resume_work); in ufshcd_clk_scaling_start_busy()
2165 if (!hba->clk_scaling.window_start_t) { in ufshcd_clk_scaling_start_busy()
2166 hba->clk_scaling.window_start_t = curr_t; in ufshcd_clk_scaling_start_busy()
2167 hba->clk_scaling.tot_busy_t = 0; in ufshcd_clk_scaling_start_busy()
2168 hba->clk_scaling.is_busy_started = false; in ufshcd_clk_scaling_start_busy()
2171 if (!hba->clk_scaling.is_busy_started) { in ufshcd_clk_scaling_start_busy()
2172 hba->clk_scaling.busy_start_t = curr_t; in ufshcd_clk_scaling_start_busy()
2173 hba->clk_scaling.is_busy_started = true; in ufshcd_clk_scaling_start_busy()
2175 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_clk_scaling_start_busy()
2178 static void ufshcd_clk_scaling_update_busy(struct ufs_hba *hba) in ufshcd_clk_scaling_update_busy() argument
2180 struct ufs_clk_scaling *scaling = &hba->clk_scaling; in ufshcd_clk_scaling_update_busy()
2183 if (!ufshcd_is_clkscaling_supported(hba)) in ufshcd_clk_scaling_update_busy()
2186 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_clk_scaling_update_busy()
2187 hba->clk_scaling.active_reqs--; in ufshcd_clk_scaling_update_busy()
2188 if (!scaling->active_reqs && scaling->is_busy_started) { in ufshcd_clk_scaling_update_busy()
2189 scaling->tot_busy_t += ktime_to_us(ktime_sub(ktime_get(), in ufshcd_clk_scaling_update_busy()
2190 scaling->busy_start_t)); in ufshcd_clk_scaling_update_busy()
2191 scaling->busy_start_t = 0; in ufshcd_clk_scaling_update_busy()
2192 scaling->is_busy_started = false; in ufshcd_clk_scaling_update_busy()
2194 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_clk_scaling_update_busy()
2204 return -EINVAL; in ufshcd_monitor_opcode2dir()
2207 static inline bool ufshcd_should_inform_monitor(struct ufs_hba *hba, in ufshcd_should_inform_monitor() argument
2210 const struct ufs_hba_monitor *m = &hba->monitor; in ufshcd_should_inform_monitor()
2212 return (m->enabled && lrbp && lrbp->cmd && in ufshcd_should_inform_monitor()
2213 (!m->chunk_size || m->chunk_size == lrbp->cmd->sdb.length) && in ufshcd_should_inform_monitor()
2214 ktime_before(hba->monitor.enabled_ts, lrbp->issue_time_stamp)); in ufshcd_should_inform_monitor()
2217 static void ufshcd_start_monitor(struct ufs_hba *hba, in ufshcd_start_monitor() argument
2220 int dir = ufshcd_monitor_opcode2dir(*lrbp->cmd->cmnd); in ufshcd_start_monitor()
2223 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_start_monitor()
2224 if (dir >= 0 && hba->monitor.nr_queued[dir]++ == 0) in ufshcd_start_monitor()
2225 hba->monitor.busy_start_ts[dir] = ktime_get(); in ufshcd_start_monitor()
2226 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_start_monitor()
2229 static void ufshcd_update_monitor(struct ufs_hba *hba, const struct ufshcd_lrb *lrbp) in ufshcd_update_monitor() argument
2231 int dir = ufshcd_monitor_opcode2dir(*lrbp->cmd->cmnd); in ufshcd_update_monitor()
2234 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_update_monitor()
2235 if (dir >= 0 && hba->monitor.nr_queued[dir] > 0) { in ufshcd_update_monitor()
2236 const struct request *req = scsi_cmd_to_rq(lrbp->cmd); in ufshcd_update_monitor()
2237 struct ufs_hba_monitor *m = &hba->monitor; in ufshcd_update_monitor()
2240 now = lrbp->compl_time_stamp; in ufshcd_update_monitor()
2241 inc = ktime_sub(now, m->busy_start_ts[dir]); in ufshcd_update_monitor()
2242 m->total_busy[dir] = ktime_add(m->total_busy[dir], inc); in ufshcd_update_monitor()
2243 m->nr_sec_rw[dir] += blk_rq_sectors(req); in ufshcd_update_monitor()
2246 m->nr_req[dir]++; in ufshcd_update_monitor()
2247 lat = ktime_sub(now, lrbp->issue_time_stamp); in ufshcd_update_monitor()
2248 m->lat_sum[dir] += lat; in ufshcd_update_monitor()
2249 if (m->lat_max[dir] < lat || !m->lat_max[dir]) in ufshcd_update_monitor()
2250 m->lat_max[dir] = lat; in ufshcd_update_monitor()
2251 if (m->lat_min[dir] > lat || !m->lat_min[dir]) in ufshcd_update_monitor()
2252 m->lat_min[dir] = lat; in ufshcd_update_monitor()
2254 m->nr_queued[dir]--; in ufshcd_update_monitor()
2256 m->busy_start_ts[dir] = now; in ufshcd_update_monitor()
2258 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_update_monitor()
2262 * ufshcd_send_command - Send SCSI or device management commands
2263 * @hba: per adapter instance
2268 void ufshcd_send_command(struct ufs_hba *hba, unsigned int task_tag, in ufshcd_send_command() argument
2271 struct ufshcd_lrb *lrbp = &hba->lrb[task_tag]; in ufshcd_send_command()
2274 lrbp->issue_time_stamp = ktime_get(); in ufshcd_send_command()
2275 lrbp->issue_time_stamp_local_clock = local_clock(); in ufshcd_send_command()
2276 lrbp->compl_time_stamp = ktime_set(0, 0); in ufshcd_send_command()
2277 lrbp->compl_time_stamp_local_clock = 0; in ufshcd_send_command()
2278 ufshcd_add_command_trace(hba, task_tag, UFS_CMD_SEND); in ufshcd_send_command()
2279 if (lrbp->cmd) in ufshcd_send_command()
2280 ufshcd_clk_scaling_start_busy(hba); in ufshcd_send_command()
2281 if (unlikely(ufshcd_should_inform_monitor(hba, lrbp))) in ufshcd_send_command()
2282 ufshcd_start_monitor(hba, lrbp); in ufshcd_send_command()
2284 if (is_mcq_enabled(hba)) { in ufshcd_send_command()
2286 struct utp_transfer_req_desc *src = lrbp->utr_descriptor_ptr; in ufshcd_send_command()
2289 spin_lock(&hwq->sq_lock); in ufshcd_send_command()
2290 dest = hwq->sqe_base_addr + hwq->sq_tail_slot; in ufshcd_send_command()
2293 spin_unlock(&hwq->sq_lock); in ufshcd_send_command()
2295 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_send_command()
2296 if (hba->vops && hba->vops->setup_xfer_req) in ufshcd_send_command()
2297 hba->vops->setup_xfer_req(hba, lrbp->task_tag, in ufshcd_send_command()
2298 !!lrbp->cmd); in ufshcd_send_command()
2299 __set_bit(lrbp->task_tag, &hba->outstanding_reqs); in ufshcd_send_command()
2300 ufshcd_writel(hba, 1 << lrbp->task_tag, in ufshcd_send_command()
2302 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_send_command()
2307 * ufshcd_copy_sense_data - Copy sense data in case of check condition
2312 u8 *const sense_buffer = lrbp->cmd->sense_buffer; in ufshcd_copy_sense_data()
2316 resp_len = be16_to_cpu(lrbp->ucd_rsp_ptr->header.data_segment_length); in ufshcd_copy_sense_data()
2320 len = be16_to_cpu(lrbp->ucd_rsp_ptr->sr.sense_data_len); in ufshcd_copy_sense_data()
2323 memcpy(sense_buffer, lrbp->ucd_rsp_ptr->sr.sense_data, in ufshcd_copy_sense_data()
2329 * ufshcd_copy_query_response() - Copy the Query Response and the data
2331 * @hba: per adapter instance
2337 int ufshcd_copy_query_response(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) in ufshcd_copy_query_response() argument
2339 struct ufs_query_res *query_res = &hba->dev_cmd.query.response; in ufshcd_copy_query_response()
2341 memcpy(&query_res->upiu_res, &lrbp->ucd_rsp_ptr->qr, QUERY_OSF_SIZE); in ufshcd_copy_query_response()
2344 if (hba->dev_cmd.query.descriptor && in ufshcd_copy_query_response()
2345 lrbp->ucd_rsp_ptr->qr.opcode == UPIU_QUERY_OPCODE_READ_DESC) { in ufshcd_copy_query_response()
2346 u8 *descp = (u8 *)lrbp->ucd_rsp_ptr + in ufshcd_copy_query_response()
2352 resp_len = be16_to_cpu(lrbp->ucd_rsp_ptr->header in ufshcd_copy_query_response()
2355 hba->dev_cmd.query.request.upiu_req.length); in ufshcd_copy_query_response()
2357 memcpy(hba->dev_cmd.query.descriptor, descp, resp_len); in ufshcd_copy_query_response()
2359 dev_warn(hba->dev, in ufshcd_copy_query_response()
2362 return -EINVAL; in ufshcd_copy_query_response()
2370 * ufshcd_hba_capabilities - Read controller capabilities
2371 * @hba: per adapter instance
2375 static inline int ufshcd_hba_capabilities(struct ufs_hba *hba) in ufshcd_hba_capabilities() argument
2379 hba->capabilities = ufshcd_readl(hba, REG_CONTROLLER_CAPABILITIES); in ufshcd_hba_capabilities()
2380 if (hba->quirks & UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS) in ufshcd_hba_capabilities()
2381 hba->capabilities &= ~MASK_64_ADDRESSING_SUPPORT; in ufshcd_hba_capabilities()
2384 hba->nutrs = (hba->capabilities & MASK_TRANSFER_REQUESTS_SLOTS) + 1; in ufshcd_hba_capabilities()
2385 hba->nutmrs = in ufshcd_hba_capabilities()
2386 ((hba->capabilities & MASK_TASK_MANAGEMENT_REQUEST_SLOTS) >> 16) + 1; in ufshcd_hba_capabilities()
2387 hba->reserved_slot = hba->nutrs - 1; in ufshcd_hba_capabilities()
2390 err = ufshcd_hba_init_crypto_capabilities(hba); in ufshcd_hba_capabilities()
2392 dev_err(hba->dev, "crypto setup failed\n"); in ufshcd_hba_capabilities()
2396 hba->mcq_sup = FIELD_GET(MASK_MCQ_SUPPORT, hba->capabilities); in ufshcd_hba_capabilities()
2397 if (!hba->mcq_sup) in ufshcd_hba_capabilities()
2400 hba->mcq_capabilities = ufshcd_readl(hba, REG_MCQCAP); in ufshcd_hba_capabilities()
2401 hba->ext_iid_sup = FIELD_GET(MASK_EXT_IID_SUPPORT, in ufshcd_hba_capabilities()
2402 hba->mcq_capabilities); in ufshcd_hba_capabilities()
2408 * ufshcd_ready_for_uic_cmd - Check if controller is ready
2410 * @hba: per adapter instance
2414 static inline bool ufshcd_ready_for_uic_cmd(struct ufs_hba *hba) in ufshcd_ready_for_uic_cmd() argument
2418 500, UIC_CMD_TIMEOUT * 1000, false, hba, in ufshcd_ready_for_uic_cmd()
2424 * ufshcd_get_upmcrs - Get the power mode change request status
2425 * @hba: Pointer to adapter instance
2431 static inline u8 ufshcd_get_upmcrs(struct ufs_hba *hba) in ufshcd_get_upmcrs() argument
2433 return (ufshcd_readl(hba, REG_CONTROLLER_STATUS) >> 8) & 0x7; in ufshcd_get_upmcrs()
2437 * ufshcd_dispatch_uic_cmd - Dispatch an UIC command to the Unipro layer
2438 * @hba: per adapter instance
2442 ufshcd_dispatch_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd) in ufshcd_dispatch_uic_cmd() argument
2444 lockdep_assert_held(&hba->uic_cmd_mutex); in ufshcd_dispatch_uic_cmd()
2446 WARN_ON(hba->active_uic_cmd); in ufshcd_dispatch_uic_cmd()
2448 hba->active_uic_cmd = uic_cmd; in ufshcd_dispatch_uic_cmd()
2451 ufshcd_writel(hba, uic_cmd->argument1, REG_UIC_COMMAND_ARG_1); in ufshcd_dispatch_uic_cmd()
2452 ufshcd_writel(hba, uic_cmd->argument2, REG_UIC_COMMAND_ARG_2); in ufshcd_dispatch_uic_cmd()
2453 ufshcd_writel(hba, uic_cmd->argument3, REG_UIC_COMMAND_ARG_3); in ufshcd_dispatch_uic_cmd()
2455 ufshcd_add_uic_command_trace(hba, uic_cmd, UFS_CMD_SEND); in ufshcd_dispatch_uic_cmd()
2458 ufshcd_writel(hba, uic_cmd->command & COMMAND_OPCODE_MASK, in ufshcd_dispatch_uic_cmd()
2463 * ufshcd_wait_for_uic_cmd - Wait for completion of an UIC command
2464 * @hba: per adapter instance
2470 ufshcd_wait_for_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd) in ufshcd_wait_for_uic_cmd() argument
2475 lockdep_assert_held(&hba->uic_cmd_mutex); in ufshcd_wait_for_uic_cmd()
2477 if (wait_for_completion_timeout(&uic_cmd->done, in ufshcd_wait_for_uic_cmd()
2479 ret = uic_cmd->argument2 & MASK_UIC_COMMAND_RESULT; in ufshcd_wait_for_uic_cmd()
2481 ret = -ETIMEDOUT; in ufshcd_wait_for_uic_cmd()
2482 dev_err(hba->dev, in ufshcd_wait_for_uic_cmd()
2484 uic_cmd->command, uic_cmd->argument3); in ufshcd_wait_for_uic_cmd()
2486 if (!uic_cmd->cmd_active) { in ufshcd_wait_for_uic_cmd()
2487 dev_err(hba->dev, "%s: UIC cmd has been completed, return the result\n", in ufshcd_wait_for_uic_cmd()
2489 ret = uic_cmd->argument2 & MASK_UIC_COMMAND_RESULT; in ufshcd_wait_for_uic_cmd()
2493 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_wait_for_uic_cmd()
2494 hba->active_uic_cmd = NULL; in ufshcd_wait_for_uic_cmd()
2495 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_wait_for_uic_cmd()
2501 * __ufshcd_send_uic_cmd - Send UIC commands and retrieve the result
2502 * @hba: per adapter instance
2509 __ufshcd_send_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd, in __ufshcd_send_uic_cmd() argument
2512 lockdep_assert_held(&hba->uic_cmd_mutex); in __ufshcd_send_uic_cmd()
2514 if (!ufshcd_ready_for_uic_cmd(hba)) { in __ufshcd_send_uic_cmd()
2515 dev_err(hba->dev, in __ufshcd_send_uic_cmd()
2517 return -EIO; in __ufshcd_send_uic_cmd()
2521 init_completion(&uic_cmd->done); in __ufshcd_send_uic_cmd()
2523 uic_cmd->cmd_active = 1; in __ufshcd_send_uic_cmd()
2524 ufshcd_dispatch_uic_cmd(hba, uic_cmd); in __ufshcd_send_uic_cmd()
2530 * ufshcd_send_uic_cmd - Send UIC commands and retrieve the result
2531 * @hba: per adapter instance
2536 int ufshcd_send_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd) in ufshcd_send_uic_cmd() argument
2540 if (hba->quirks & UFSHCD_QUIRK_BROKEN_UIC_CMD) in ufshcd_send_uic_cmd()
2543 ufshcd_hold(hba); in ufshcd_send_uic_cmd()
2544 mutex_lock(&hba->uic_cmd_mutex); in ufshcd_send_uic_cmd()
2545 ufshcd_add_delay_before_dme_cmd(hba); in ufshcd_send_uic_cmd()
2547 ret = __ufshcd_send_uic_cmd(hba, uic_cmd, true); in ufshcd_send_uic_cmd()
2549 ret = ufshcd_wait_for_uic_cmd(hba, uic_cmd); in ufshcd_send_uic_cmd()
2551 mutex_unlock(&hba->uic_cmd_mutex); in ufshcd_send_uic_cmd()
2553 ufshcd_release(hba); in ufshcd_send_uic_cmd()
2558 * ufshcd_sgl_to_prdt - SG list to PRTD (Physical Region Description Table, 4DW format)
2559 * @hba: per-adapter instance
2564 static void ufshcd_sgl_to_prdt(struct ufs_hba *hba, struct ufshcd_lrb *lrbp, int sg_entries, in ufshcd_sgl_to_prdt() argument
2573 if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) in ufshcd_sgl_to_prdt()
2574 lrbp->utr_descriptor_ptr->prd_table_length = in ufshcd_sgl_to_prdt()
2575 cpu_to_le16(sg_entries * ufshcd_sg_entry_size(hba)); in ufshcd_sgl_to_prdt()
2577 lrbp->utr_descriptor_ptr->prd_table_length = cpu_to_le16(sg_entries); in ufshcd_sgl_to_prdt()
2579 prd = lrbp->ucd_prdt_ptr; in ufshcd_sgl_to_prdt()
2593 prd->size = cpu_to_le32(len - 1); in ufshcd_sgl_to_prdt()
2594 prd->addr = cpu_to_le64(sg->dma_address); in ufshcd_sgl_to_prdt()
2595 prd->reserved = 0; in ufshcd_sgl_to_prdt()
2596 prd = (void *)prd + ufshcd_sg_entry_size(hba); in ufshcd_sgl_to_prdt()
2599 lrbp->utr_descriptor_ptr->prd_table_length = 0; in ufshcd_sgl_to_prdt()
2604 * ufshcd_map_sg - Map scatter-gather list to prdt
2605 * @hba: per adapter instance
2608 * Return: 0 in case of success, non-zero value in case of failure.
2610 static int ufshcd_map_sg(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) in ufshcd_map_sg() argument
2612 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_map_sg()
2618 ufshcd_sgl_to_prdt(hba, lrbp, sg_segments, scsi_sglist(cmd)); in ufshcd_map_sg()
2624 * ufshcd_enable_intr - enable interrupts
2625 * @hba: per adapter instance
2628 static void ufshcd_enable_intr(struct ufs_hba *hba, u32 intrs) in ufshcd_enable_intr() argument
2630 u32 set = ufshcd_readl(hba, REG_INTERRUPT_ENABLE); in ufshcd_enable_intr()
2632 if (hba->ufs_version == ufshci_version(1, 0)) { in ufshcd_enable_intr()
2640 ufshcd_writel(hba, set, REG_INTERRUPT_ENABLE); in ufshcd_enable_intr()
2644 * ufshcd_disable_intr - disable interrupts
2645 * @hba: per adapter instance
2648 static void ufshcd_disable_intr(struct ufs_hba *hba, u32 intrs) in ufshcd_disable_intr() argument
2650 u32 set = ufshcd_readl(hba, REG_INTERRUPT_ENABLE); in ufshcd_disable_intr()
2652 if (hba->ufs_version == ufshci_version(1, 0)) { in ufshcd_disable_intr()
2662 ufshcd_writel(hba, set, REG_INTERRUPT_ENABLE); in ufshcd_disable_intr()
2666 * ufshcd_prepare_req_desc_hdr - Fill UTP Transfer request descriptor header according to request
2676 struct utp_transfer_req_desc *req_desc = lrbp->utr_descriptor_ptr; in ufshcd_prepare_req_desc_hdr()
2677 struct request_desc_header *h = &req_desc->header; in ufshcd_prepare_req_desc_hdr()
2693 h->command_type = lrbp->command_type; in ufshcd_prepare_req_desc_hdr()
2694 h->data_direction = data_direction; in ufshcd_prepare_req_desc_hdr()
2695 h->ehs_length = ehs_length; in ufshcd_prepare_req_desc_hdr()
2697 if (lrbp->intr_cmd) in ufshcd_prepare_req_desc_hdr()
2698 h->interrupt = 1; in ufshcd_prepare_req_desc_hdr()
2708 h->ocs = OCS_INVALID_COMMAND_STATUS; in ufshcd_prepare_req_desc_hdr()
2710 req_desc->prd_table_length = 0; in ufshcd_prepare_req_desc_hdr()
2714 * ufshcd_prepare_utp_scsi_cmd_upiu() - fills the utp_transfer_req_desc,
2722 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_prepare_utp_scsi_cmd_upiu()
2723 struct utp_upiu_req *ucd_req_ptr = lrbp->ucd_req_ptr; in ufshcd_prepare_utp_scsi_cmd_upiu()
2726 ucd_req_ptr->header = (struct utp_upiu_header){ in ufshcd_prepare_utp_scsi_cmd_upiu()
2729 .lun = lrbp->lun, in ufshcd_prepare_utp_scsi_cmd_upiu()
2730 .task_tag = lrbp->task_tag, in ufshcd_prepare_utp_scsi_cmd_upiu()
2734 WARN_ON_ONCE(ucd_req_ptr->header.task_tag != lrbp->task_tag); in ufshcd_prepare_utp_scsi_cmd_upiu()
2736 ucd_req_ptr->sc.exp_data_transfer_len = cpu_to_be32(cmd->sdb.length); in ufshcd_prepare_utp_scsi_cmd_upiu()
2738 cdb_len = min_t(unsigned short, cmd->cmd_len, UFS_CDB_SIZE); in ufshcd_prepare_utp_scsi_cmd_upiu()
2739 memset(ucd_req_ptr->sc.cdb, 0, UFS_CDB_SIZE); in ufshcd_prepare_utp_scsi_cmd_upiu()
2740 memcpy(ucd_req_ptr->sc.cdb, cmd->cmnd, cdb_len); in ufshcd_prepare_utp_scsi_cmd_upiu()
2742 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_prepare_utp_scsi_cmd_upiu()
2746 * ufshcd_prepare_utp_query_req_upiu() - fill the utp_transfer_req_desc for query request
2747 * @hba: UFS hba
2751 static void ufshcd_prepare_utp_query_req_upiu(struct ufs_hba *hba, in ufshcd_prepare_utp_query_req_upiu() argument
2754 struct utp_upiu_req *ucd_req_ptr = lrbp->ucd_req_ptr; in ufshcd_prepare_utp_query_req_upiu()
2755 struct ufs_query *query = &hba->dev_cmd.query; in ufshcd_prepare_utp_query_req_upiu()
2756 u16 len = be16_to_cpu(query->request.upiu_req.length); in ufshcd_prepare_utp_query_req_upiu()
2759 ucd_req_ptr->header = (struct utp_upiu_header){ in ufshcd_prepare_utp_query_req_upiu()
2762 .lun = lrbp->lun, in ufshcd_prepare_utp_query_req_upiu()
2763 .task_tag = lrbp->task_tag, in ufshcd_prepare_utp_query_req_upiu()
2764 .query_function = query->request.query_func, in ufshcd_prepare_utp_query_req_upiu()
2767 query->request.upiu_req.opcode == in ufshcd_prepare_utp_query_req_upiu()
2774 memcpy(&ucd_req_ptr->qr, &query->request.upiu_req, in ufshcd_prepare_utp_query_req_upiu()
2778 if (query->request.upiu_req.opcode == UPIU_QUERY_OPCODE_WRITE_DESC) in ufshcd_prepare_utp_query_req_upiu()
2779 memcpy(ucd_req_ptr + 1, query->descriptor, len); in ufshcd_prepare_utp_query_req_upiu()
2781 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_prepare_utp_query_req_upiu()
2786 struct utp_upiu_req *ucd_req_ptr = lrbp->ucd_req_ptr; in ufshcd_prepare_utp_nop_upiu()
2790 ucd_req_ptr->header = (struct utp_upiu_header){ in ufshcd_prepare_utp_nop_upiu()
2792 .task_tag = lrbp->task_tag, in ufshcd_prepare_utp_nop_upiu()
2795 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_prepare_utp_nop_upiu()
2799 * ufshcd_compose_devman_upiu - UFS Protocol Information Unit(UPIU)
2801 * @hba: per adapter instance
2806 static int ufshcd_compose_devman_upiu(struct ufs_hba *hba, in ufshcd_compose_devman_upiu() argument
2812 if (hba->ufs_version <= ufshci_version(1, 1)) in ufshcd_compose_devman_upiu()
2813 lrbp->command_type = UTP_CMD_TYPE_DEV_MANAGE; in ufshcd_compose_devman_upiu()
2815 lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; in ufshcd_compose_devman_upiu()
2818 if (hba->dev_cmd.type == DEV_CMD_TYPE_QUERY) in ufshcd_compose_devman_upiu()
2819 ufshcd_prepare_utp_query_req_upiu(hba, lrbp, upiu_flags); in ufshcd_compose_devman_upiu()
2820 else if (hba->dev_cmd.type == DEV_CMD_TYPE_NOP) in ufshcd_compose_devman_upiu()
2823 ret = -EINVAL; in ufshcd_compose_devman_upiu()
2829 * ufshcd_comp_scsi_upiu - UFS Protocol Information Unit(UPIU)
2831 * @hba: per adapter instance
2834 static void ufshcd_comp_scsi_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) in ufshcd_comp_scsi_upiu() argument
2836 struct request *rq = scsi_cmd_to_rq(lrbp->cmd); in ufshcd_comp_scsi_upiu()
2840 if (hba->ufs_version <= ufshci_version(1, 1)) in ufshcd_comp_scsi_upiu()
2841 lrbp->command_type = UTP_CMD_TYPE_SCSI; in ufshcd_comp_scsi_upiu()
2843 lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; in ufshcd_comp_scsi_upiu()
2846 lrbp->cmd->sc_data_direction, 0); in ufshcd_comp_scsi_upiu()
2853 * ufshcd_upiu_wlun_to_scsi_wlun - maps UPIU W-LUN id to SCSI W-LUN ID
2854 * @upiu_wlun_id: UPIU W-LUN id
2856 * Return: SCSI W-LUN id.
2865 return sdev->lun == in is_device_wlun()
2875 struct ufs_hba *hba = shost_priv(shost); in ufshcd_map_queues() local
2878 if (!is_mcq_supported(hba)) { in ufshcd_map_queues()
2879 hba->nr_queues[HCTX_TYPE_DEFAULT] = 1; in ufshcd_map_queues()
2880 hba->nr_queues[HCTX_TYPE_READ] = 0; in ufshcd_map_queues()
2881 hba->nr_queues[HCTX_TYPE_POLL] = 1; in ufshcd_map_queues()
2882 hba->nr_hw_queues = 1; in ufshcd_map_queues()
2885 for (i = 0; i < shost->nr_maps; i++) { in ufshcd_map_queues()
2886 struct blk_mq_queue_map *map = &shost->tag_set.map[i]; in ufshcd_map_queues()
2888 map->nr_queues = hba->nr_queues[i]; in ufshcd_map_queues()
2889 if (!map->nr_queues) in ufshcd_map_queues()
2891 map->queue_offset = queue_offset; in ufshcd_map_queues()
2892 if (i == HCTX_TYPE_POLL && !is_mcq_supported(hba)) in ufshcd_map_queues()
2893 map->queue_offset = 0; in ufshcd_map_queues()
2896 queue_offset += map->nr_queues; in ufshcd_map_queues()
2900 static void ufshcd_init_lrb(struct ufs_hba *hba, struct ufshcd_lrb *lrb, int i) in ufshcd_init_lrb() argument
2902 struct utp_transfer_cmd_desc *cmd_descp = (void *)hba->ucdl_base_addr + in ufshcd_init_lrb()
2903 i * ufshcd_get_ucd_size(hba); in ufshcd_init_lrb()
2904 struct utp_transfer_req_desc *utrdlp = hba->utrdl_base_addr; in ufshcd_init_lrb()
2905 dma_addr_t cmd_desc_element_addr = hba->ucdl_dma_addr + in ufshcd_init_lrb()
2906 i * ufshcd_get_ucd_size(hba); in ufshcd_init_lrb()
2911 lrb->utr_descriptor_ptr = utrdlp + i; in ufshcd_init_lrb()
2912 lrb->utrd_dma_addr = hba->utrdl_dma_addr + in ufshcd_init_lrb()
2914 lrb->ucd_req_ptr = (struct utp_upiu_req *)cmd_descp->command_upiu; in ufshcd_init_lrb()
2915 lrb->ucd_req_dma_addr = cmd_desc_element_addr; in ufshcd_init_lrb()
2916 lrb->ucd_rsp_ptr = (struct utp_upiu_rsp *)cmd_descp->response_upiu; in ufshcd_init_lrb()
2917 lrb->ucd_rsp_dma_addr = cmd_desc_element_addr + response_offset; in ufshcd_init_lrb()
2918 lrb->ucd_prdt_ptr = (struct ufshcd_sg_entry *)cmd_descp->prd_table; in ufshcd_init_lrb()
2919 lrb->ucd_prdt_dma_addr = cmd_desc_element_addr + prdt_offset; in ufshcd_init_lrb()
2923 * ufshcd_queuecommand - main entry point for SCSI requests
2927 * Return: 0 for success, non-zero in case of failure.
2931 struct ufs_hba *hba = shost_priv(host); in ufshcd_queuecommand() local
2932 int tag = scsi_cmd_to_rq(cmd)->tag; in ufshcd_queuecommand()
2937 switch (hba->ufshcd_state) { in ufshcd_queuecommand()
2942 * SCSI error handler can call ->queuecommand() while UFS error in ufshcd_queuecommand()
2948 if (ufshcd_eh_in_progress(hba)) { in ufshcd_queuecommand()
2956 * stage. If a scsi cmd, e.g. the SSU cmd, is sent from hba's in ufshcd_queuecommand()
2964 if (hba->pm_op_in_progress) { in ufshcd_queuecommand()
2965 hba->force_reset = true; in ufshcd_queuecommand()
2980 hba->req_abort_count = 0; in ufshcd_queuecommand()
2982 ufshcd_hold(hba); in ufshcd_queuecommand()
2984 lrbp = &hba->lrb[tag]; in ufshcd_queuecommand()
2985 lrbp->cmd = cmd; in ufshcd_queuecommand()
2986 lrbp->task_tag = tag; in ufshcd_queuecommand()
2987 lrbp->lun = ufshcd_scsi_to_upiu_lun(cmd->device->lun); in ufshcd_queuecommand()
2988 lrbp->intr_cmd = !ufshcd_is_intr_aggr_allowed(hba); in ufshcd_queuecommand()
2992 lrbp->req_abort_skip = false; in ufshcd_queuecommand()
2994 ufshcd_comp_scsi_upiu(hba, lrbp); in ufshcd_queuecommand()
2996 err = ufshcd_map_sg(hba, lrbp); in ufshcd_queuecommand()
2998 ufshcd_release(hba); in ufshcd_queuecommand()
3002 if (is_mcq_enabled(hba)) in ufshcd_queuecommand()
3003 hwq = ufshcd_mcq_req_to_hwq(hba, scsi_cmd_to_rq(cmd)); in ufshcd_queuecommand()
3005 ufshcd_send_command(hba, tag, hwq); in ufshcd_queuecommand()
3008 if (ufs_trigger_eh(hba)) { in ufshcd_queuecommand()
3011 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_queuecommand()
3012 ufshcd_schedule_eh_work(hba); in ufshcd_queuecommand()
3013 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_queuecommand()
3019 static int ufshcd_compose_dev_cmd(struct ufs_hba *hba, in ufshcd_compose_dev_cmd() argument
3022 lrbp->cmd = NULL; in ufshcd_compose_dev_cmd()
3023 lrbp->task_tag = tag; in ufshcd_compose_dev_cmd()
3024 lrbp->lun = 0; /* device management cmd is not specific to any LUN */ in ufshcd_compose_dev_cmd()
3025 lrbp->intr_cmd = true; /* No interrupt aggregation */ in ufshcd_compose_dev_cmd()
3027 hba->dev_cmd.type = cmd_type; in ufshcd_compose_dev_cmd()
3029 return ufshcd_compose_devman_upiu(hba, lrbp); in ufshcd_compose_dev_cmd()
3055 * @hba: per adapter instance
3058 static int ufshcd_clear_cmd(struct ufs_hba *hba, u32 task_tag) in ufshcd_clear_cmd() argument
3064 if (is_mcq_enabled(hba)) { in ufshcd_clear_cmd()
3069 err = ufshcd_mcq_sq_cleanup(hba, task_tag); in ufshcd_clear_cmd()
3071 dev_err(hba->dev, "%s: failed tag=%d. err=%d\n", in ufshcd_clear_cmd()
3081 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_clear_cmd()
3082 ufshcd_utrl_clear(hba, mask); in ufshcd_clear_cmd()
3083 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_clear_cmd()
3086 * wait for h/w to clear corresponding bit in door-bell. in ufshcd_clear_cmd()
3089 return ufshcd_wait_for_register(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL, in ufshcd_clear_cmd()
3094 * ufshcd_dev_cmd_completion() - handles device management command responses
3095 * @hba: per adapter instance
3101 ufshcd_dev_cmd_completion(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) in ufshcd_dev_cmd_completion() argument
3106 hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); in ufshcd_dev_cmd_completion()
3107 resp = ufshcd_get_req_rsp(lrbp->ucd_rsp_ptr); in ufshcd_dev_cmd_completion()
3111 if (hba->dev_cmd.type != DEV_CMD_TYPE_NOP) { in ufshcd_dev_cmd_completion()
3112 err = -EINVAL; in ufshcd_dev_cmd_completion()
3113 dev_err(hba->dev, "%s: unexpected response %x\n", in ufshcd_dev_cmd_completion()
3118 u8 response = lrbp->ucd_rsp_ptr->header.response; in ufshcd_dev_cmd_completion()
3121 err = ufshcd_copy_query_response(hba, lrbp); in ufshcd_dev_cmd_completion()
3126 err = -EPERM; in ufshcd_dev_cmd_completion()
3127 dev_err(hba->dev, "%s: Reject UPIU not fully implemented\n", in ufshcd_dev_cmd_completion()
3131 if (hba->dev_cmd.type != DEV_CMD_TYPE_RPMB) { in ufshcd_dev_cmd_completion()
3132 err = -EINVAL; in ufshcd_dev_cmd_completion()
3133 dev_err(hba->dev, "%s: unexpected response %x\n", __func__, resp); in ufshcd_dev_cmd_completion()
3137 err = -EINVAL; in ufshcd_dev_cmd_completion()
3138 dev_err(hba->dev, "%s: Invalid device management cmd response: %x\n", in ufshcd_dev_cmd_completion()
3146 static int ufshcd_wait_for_dev_cmd(struct ufs_hba *hba, in ufshcd_wait_for_dev_cmd() argument
3155 time_left = wait_for_completion_timeout(hba->dev_cmd.complete, in ufshcd_wait_for_dev_cmd()
3164 hba->dev_cmd.complete = NULL; in ufshcd_wait_for_dev_cmd()
3167 err = ufshcd_dev_cmd_completion(hba, lrbp); in ufshcd_wait_for_dev_cmd()
3169 err = -ETIMEDOUT; in ufshcd_wait_for_dev_cmd()
3170 dev_dbg(hba->dev, "%s: dev_cmd request timedout, tag %d\n", in ufshcd_wait_for_dev_cmd()
3171 __func__, lrbp->task_tag); in ufshcd_wait_for_dev_cmd()
3174 if (is_mcq_enabled(hba)) { in ufshcd_wait_for_dev_cmd()
3175 err = ufshcd_clear_cmd(hba, lrbp->task_tag); in ufshcd_wait_for_dev_cmd()
3176 hba->dev_cmd.complete = NULL; in ufshcd_wait_for_dev_cmd()
3181 if (ufshcd_clear_cmd(hba, lrbp->task_tag) == 0) { in ufshcd_wait_for_dev_cmd()
3183 err = -EAGAIN; in ufshcd_wait_for_dev_cmd()
3189 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3190 pending = test_bit(lrbp->task_tag, in ufshcd_wait_for_dev_cmd()
3191 &hba->outstanding_reqs); in ufshcd_wait_for_dev_cmd()
3193 hba->dev_cmd.complete = NULL; in ufshcd_wait_for_dev_cmd()
3194 __clear_bit(lrbp->task_tag, in ufshcd_wait_for_dev_cmd()
3195 &hba->outstanding_reqs); in ufshcd_wait_for_dev_cmd()
3197 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3208 dev_err(hba->dev, "%s: failed to clear tag %d\n", in ufshcd_wait_for_dev_cmd()
3209 __func__, lrbp->task_tag); in ufshcd_wait_for_dev_cmd()
3211 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3212 pending = test_bit(lrbp->task_tag, in ufshcd_wait_for_dev_cmd()
3213 &hba->outstanding_reqs); in ufshcd_wait_for_dev_cmd()
3215 hba->dev_cmd.complete = NULL; in ufshcd_wait_for_dev_cmd()
3216 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_wait_for_dev_cmd()
3233 * ufshcd_exec_dev_cmd - API for sending device management requests
3234 * @hba: UFS hba
3241 * it is expected you hold the hba->dev_cmd.lock mutex.
3243 static int ufshcd_exec_dev_cmd(struct ufs_hba *hba, in ufshcd_exec_dev_cmd() argument
3247 const u32 tag = hba->reserved_slot; in ufshcd_exec_dev_cmd()
3251 /* Protects use of hba->reserved_slot. */ in ufshcd_exec_dev_cmd()
3252 lockdep_assert_held(&hba->dev_cmd.lock); in ufshcd_exec_dev_cmd()
3254 down_read(&hba->clk_scaling_lock); in ufshcd_exec_dev_cmd()
3256 lrbp = &hba->lrb[tag]; in ufshcd_exec_dev_cmd()
3257 lrbp->cmd = NULL; in ufshcd_exec_dev_cmd()
3258 err = ufshcd_compose_dev_cmd(hba, lrbp, cmd_type, tag); in ufshcd_exec_dev_cmd()
3262 hba->dev_cmd.complete = &wait; in ufshcd_exec_dev_cmd()
3264 ufshcd_add_query_upiu_trace(hba, UFS_QUERY_SEND, lrbp->ucd_req_ptr); in ufshcd_exec_dev_cmd()
3266 ufshcd_send_command(hba, tag, hba->dev_cmd_queue); in ufshcd_exec_dev_cmd()
3267 err = ufshcd_wait_for_dev_cmd(hba, lrbp, timeout); in ufshcd_exec_dev_cmd()
3268 ufshcd_add_query_upiu_trace(hba, err ? UFS_QUERY_ERR : UFS_QUERY_COMP, in ufshcd_exec_dev_cmd()
3269 (struct utp_upiu_req *)lrbp->ucd_rsp_ptr); in ufshcd_exec_dev_cmd()
3272 up_read(&hba->clk_scaling_lock); in ufshcd_exec_dev_cmd()
3277 * ufshcd_init_query() - init the query response and request parameters
3278 * @hba: per-adapter instance
3286 static inline void ufshcd_init_query(struct ufs_hba *hba, in ufshcd_init_query() argument
3290 *request = &hba->dev_cmd.query.request; in ufshcd_init_query()
3291 *response = &hba->dev_cmd.query.response; in ufshcd_init_query()
3294 (*request)->upiu_req.opcode = opcode; in ufshcd_init_query()
3295 (*request)->upiu_req.idn = idn; in ufshcd_init_query()
3296 (*request)->upiu_req.index = index; in ufshcd_init_query()
3297 (*request)->upiu_req.selector = selector; in ufshcd_init_query()
3300 static int ufshcd_query_flag_retry(struct ufs_hba *hba, in ufshcd_query_flag_retry() argument
3307 ret = ufshcd_query_flag(hba, opcode, idn, index, flag_res); in ufshcd_query_flag_retry()
3309 dev_dbg(hba->dev, in ufshcd_query_flag_retry()
3317 dev_err(hba->dev, in ufshcd_query_flag_retry()
3324 * ufshcd_query_flag() - API function for sending flag query requests
3325 * @hba: per-adapter instance
3331 * Return: 0 for success, non-zero in case of failure.
3333 int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode, in ufshcd_query_flag() argument
3341 BUG_ON(!hba); in ufshcd_query_flag()
3343 ufshcd_hold(hba); in ufshcd_query_flag()
3344 mutex_lock(&hba->dev_cmd.lock); in ufshcd_query_flag()
3345 ufshcd_init_query(hba, &request, &response, opcode, idn, index, in ufshcd_query_flag()
3352 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in ufshcd_query_flag()
3355 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in ufshcd_query_flag()
3358 dev_err(hba->dev, "%s: Invalid argument for read request\n", in ufshcd_query_flag()
3360 err = -EINVAL; in ufshcd_query_flag()
3365 dev_err(hba->dev, in ufshcd_query_flag()
3368 err = -EINVAL; in ufshcd_query_flag()
3372 err = ufshcd_exec_dev_cmd(hba, DEV_CMD_TYPE_QUERY, timeout); in ufshcd_query_flag()
3375 dev_err(hba->dev, in ufshcd_query_flag()
3382 *flag_res = (be32_to_cpu(response->upiu_res.value) & in ufshcd_query_flag()
3386 mutex_unlock(&hba->dev_cmd.lock); in ufshcd_query_flag()
3387 ufshcd_release(hba); in ufshcd_query_flag()
3392 * ufshcd_query_attr - API function for sending attribute requests
3393 * @hba: per-adapter instance
3400 * Return: 0 for success, non-zero in case of failure.
3402 int ufshcd_query_attr(struct ufs_hba *hba, enum query_opcode opcode, in ufshcd_query_attr() argument
3409 BUG_ON(!hba); in ufshcd_query_attr()
3412 dev_err(hba->dev, "%s: attribute value required for opcode 0x%x\n", in ufshcd_query_attr()
3414 return -EINVAL; in ufshcd_query_attr()
3417 ufshcd_hold(hba); in ufshcd_query_attr()
3419 mutex_lock(&hba->dev_cmd.lock); in ufshcd_query_attr()
3420 ufshcd_init_query(hba, &request, &response, opcode, idn, index, in ufshcd_query_attr()
3425 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in ufshcd_query_attr()
3426 request->upiu_req.value = cpu_to_be32(*attr_val); in ufshcd_query_attr()
3429 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in ufshcd_query_attr()
3432 dev_err(hba->dev, "%s: Expected query attr opcode but got = 0x%.2x\n", in ufshcd_query_attr()
3434 err = -EINVAL; in ufshcd_query_attr()
3438 err = ufshcd_exec_dev_cmd(hba, DEV_CMD_TYPE_QUERY, QUERY_REQ_TIMEOUT); in ufshcd_query_attr()
3441 dev_err(hba->dev, "%s: opcode 0x%.2x for idn %d failed, index %d, err = %d\n", in ufshcd_query_attr()
3446 *attr_val = be32_to_cpu(response->upiu_res.value); in ufshcd_query_attr()
3449 mutex_unlock(&hba->dev_cmd.lock); in ufshcd_query_attr()
3450 ufshcd_release(hba); in ufshcd_query_attr()
3455 * ufshcd_query_attr_retry() - API function for sending query
3457 * @hba: per-adapter instance
3465 * Return: 0 for success, non-zero in case of failure.
3467 int ufshcd_query_attr_retry(struct ufs_hba *hba, in ufshcd_query_attr_retry() argument
3474 for (retries = QUERY_REQ_RETRIES; retries > 0; retries--) { in ufshcd_query_attr_retry()
3475 ret = ufshcd_query_attr(hba, opcode, idn, index, in ufshcd_query_attr_retry()
3478 dev_dbg(hba->dev, "%s: failed with error %d, retries %d\n", in ufshcd_query_attr_retry()
3485 dev_err(hba->dev, in ufshcd_query_attr_retry()
3491 static int __ufshcd_query_descriptor(struct ufs_hba *hba, in __ufshcd_query_descriptor() argument
3499 BUG_ON(!hba); in __ufshcd_query_descriptor()
3502 dev_err(hba->dev, "%s: descriptor buffer required for opcode 0x%x\n", in __ufshcd_query_descriptor()
3504 return -EINVAL; in __ufshcd_query_descriptor()
3508 dev_err(hba->dev, "%s: descriptor buffer size (%d) is out of range\n", in __ufshcd_query_descriptor()
3510 return -EINVAL; in __ufshcd_query_descriptor()
3513 ufshcd_hold(hba); in __ufshcd_query_descriptor()
3515 mutex_lock(&hba->dev_cmd.lock); in __ufshcd_query_descriptor()
3516 ufshcd_init_query(hba, &request, &response, opcode, idn, index, in __ufshcd_query_descriptor()
3518 hba->dev_cmd.query.descriptor = desc_buf; in __ufshcd_query_descriptor()
3519 request->upiu_req.length = cpu_to_be16(*buf_len); in __ufshcd_query_descriptor()
3523 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in __ufshcd_query_descriptor()
3526 request->query_func = UPIU_QUERY_FUNC_STANDARD_READ_REQUEST; in __ufshcd_query_descriptor()
3529 dev_err(hba->dev, in __ufshcd_query_descriptor()
3532 err = -EINVAL; in __ufshcd_query_descriptor()
3536 err = ufshcd_exec_dev_cmd(hba, DEV_CMD_TYPE_QUERY, QUERY_REQ_TIMEOUT); in __ufshcd_query_descriptor()
3539 dev_err(hba->dev, "%s: opcode 0x%.2x for idn %d failed, index %d, err = %d\n", in __ufshcd_query_descriptor()
3544 *buf_len = be16_to_cpu(response->upiu_res.length); in __ufshcd_query_descriptor()
3547 hba->dev_cmd.query.descriptor = NULL; in __ufshcd_query_descriptor()
3548 mutex_unlock(&hba->dev_cmd.lock); in __ufshcd_query_descriptor()
3549 ufshcd_release(hba); in __ufshcd_query_descriptor()
3554 * ufshcd_query_descriptor_retry - API function for sending descriptor requests
3555 * @hba: per-adapter instance
3566 * Return: 0 for success, non-zero in case of failure.
3568 int ufshcd_query_descriptor_retry(struct ufs_hba *hba, in ufshcd_query_descriptor_retry() argument
3577 for (retries = QUERY_REQ_RETRIES; retries > 0; retries--) { in ufshcd_query_descriptor_retry()
3578 err = __ufshcd_query_descriptor(hba, opcode, idn, index, in ufshcd_query_descriptor_retry()
3580 if (!err || err == -EINVAL) in ufshcd_query_descriptor_retry()
3588 * ufshcd_read_desc_param - read the specified descriptor parameter
3589 * @hba: Pointer to adapter instance
3596 * Return: 0 in case of success, non-zero otherwise.
3598 int ufshcd_read_desc_param(struct ufs_hba *hba, in ufshcd_read_desc_param() argument
3612 return -EINVAL; in ufshcd_read_desc_param()
3618 return -ENOMEM; in ufshcd_read_desc_param()
3625 ret = ufshcd_query_descriptor_retry(hba, UPIU_QUERY_OPCODE_READ_DESC, in ufshcd_read_desc_param()
3629 …dev_err(hba->dev, "%s: Failed reading descriptor. desc_id %d, desc_index %d, param_offset %d, ret … in ufshcd_read_desc_param()
3638 dev_err(hba->dev, "%s: Invalid offset 0x%x in descriptor IDN 0x%x, length 0x%x\n", in ufshcd_read_desc_param()
3640 ret = -EINVAL; in ufshcd_read_desc_param()
3646 dev_err(hba->dev, "%s: invalid desc_id %d in descriptor header\n", in ufshcd_read_desc_param()
3648 ret = -EINVAL; in ufshcd_read_desc_param()
3655 ret = -EINVAL; in ufshcd_read_desc_param()
3658 min_t(u32, param_size, buff_len - param_offset)); in ufshcd_read_desc_param()
3667 * struct uc_string_id - unicode string
3679 /* replace non-printable or non-ASCII characters with spaces */
3686 * ufshcd_read_string_desc - read string descriptor
3687 * @hba: pointer to adapter instance
3696 * * -ENOMEM: on allocation failure
3697 * * -EINVAL: on a wrong parameter
3699 int ufshcd_read_string_desc(struct ufs_hba *hba, u8 desc_index, in ufshcd_read_string_desc() argument
3707 return -EINVAL; in ufshcd_read_string_desc()
3711 return -ENOMEM; in ufshcd_read_string_desc()
3713 ret = ufshcd_read_desc_param(hba, QUERY_DESC_IDN_STRING, desc_index, 0, in ufshcd_read_string_desc()
3716 dev_err(hba->dev, "Reading String Desc failed after %d retries. err = %d\n", in ufshcd_read_string_desc()
3722 if (uc_str->len <= QUERY_DESC_HDR_SIZE) { in ufshcd_read_string_desc()
3723 dev_dbg(hba->dev, "String Desc is of zero length\n"); in ufshcd_read_string_desc()
3733 ascii_len = (uc_str->len - QUERY_DESC_HDR_SIZE) / 2 + 1; in ufshcd_read_string_desc()
3736 ret = -ENOMEM; in ufshcd_read_string_desc()
3742 * we need to convert to utf-8 so it can be displayed in ufshcd_read_string_desc()
3744 ret = utf16s_to_utf8s(uc_str->uc, in ufshcd_read_string_desc()
3745 uc_str->len - QUERY_DESC_HDR_SIZE, in ufshcd_read_string_desc()
3746 UTF16_BIG_ENDIAN, str, ascii_len - 1); in ufshcd_read_string_desc()
3748 /* replace non-printable or non-ASCII characters with spaces */ in ufshcd_read_string_desc()
3755 str = kmemdup(uc_str, uc_str->len, GFP_KERNEL); in ufshcd_read_string_desc()
3757 ret = -ENOMEM; in ufshcd_read_string_desc()
3760 ret = uc_str->len; in ufshcd_read_string_desc()
3769 * ufshcd_read_unit_desc_param - read the specified unit descriptor parameter
3770 * @hba: Pointer to adapter instance
3776 * Return: 0 in case of success, non-zero otherwise.
3778 static inline int ufshcd_read_unit_desc_param(struct ufs_hba *hba, in ufshcd_read_unit_desc_param() argument
3788 if (!ufs_is_valid_unit_desc_lun(&hba->dev_info, lun)) in ufshcd_read_unit_desc_param()
3789 return -EOPNOTSUPP; in ufshcd_read_unit_desc_param()
3791 return ufshcd_read_desc_param(hba, QUERY_DESC_IDN_UNIT, lun, in ufshcd_read_unit_desc_param()
3795 static int ufshcd_get_ref_clk_gating_wait(struct ufs_hba *hba) in ufshcd_get_ref_clk_gating_wait() argument
3800 if (hba->dev_info.wspecversion >= 0x300) { in ufshcd_get_ref_clk_gating_wait()
3801 err = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR, in ufshcd_get_ref_clk_gating_wait()
3805 dev_err(hba->dev, "Failed reading bRefClkGatingWait. err = %d, use default %uus\n", in ufshcd_get_ref_clk_gating_wait()
3810 dev_err(hba->dev, "Undefined ref clk gating wait time, use default %uus\n", in ufshcd_get_ref_clk_gating_wait()
3814 hba->dev_info.clk_gating_wait_us = gating_wait; in ufshcd_get_ref_clk_gating_wait()
3821 * ufshcd_memory_alloc - allocate memory for host memory space data structures
3822 * @hba: per adapter instance
3831 * Return: 0 for success, non-zero in case of failure.
3833 static int ufshcd_memory_alloc(struct ufs_hba *hba) in ufshcd_memory_alloc() argument
3838 ucdl_size = ufshcd_get_ucd_size(hba) * hba->nutrs; in ufshcd_memory_alloc()
3839 hba->ucdl_base_addr = dmam_alloc_coherent(hba->dev, in ufshcd_memory_alloc()
3841 &hba->ucdl_dma_addr, in ufshcd_memory_alloc()
3847 if (!hba->ucdl_base_addr || in ufshcd_memory_alloc()
3848 WARN_ON(hba->ucdl_dma_addr & (128 - 1))) { in ufshcd_memory_alloc()
3849 dev_err(hba->dev, in ufshcd_memory_alloc()
3858 utrdl_size = (sizeof(struct utp_transfer_req_desc) * hba->nutrs); in ufshcd_memory_alloc()
3859 hba->utrdl_base_addr = dmam_alloc_coherent(hba->dev, in ufshcd_memory_alloc()
3861 &hba->utrdl_dma_addr, in ufshcd_memory_alloc()
3863 if (!hba->utrdl_base_addr || in ufshcd_memory_alloc()
3864 WARN_ON(hba->utrdl_dma_addr & (SZ_1K - 1))) { in ufshcd_memory_alloc()
3865 dev_err(hba->dev, in ufshcd_memory_alloc()
3876 if (hba->utmrdl_base_addr) in ufshcd_memory_alloc()
3882 utmrdl_size = sizeof(struct utp_task_req_desc) * hba->nutmrs; in ufshcd_memory_alloc()
3883 hba->utmrdl_base_addr = dmam_alloc_coherent(hba->dev, in ufshcd_memory_alloc()
3885 &hba->utmrdl_dma_addr, in ufshcd_memory_alloc()
3887 if (!hba->utmrdl_base_addr || in ufshcd_memory_alloc()
3888 WARN_ON(hba->utmrdl_dma_addr & (SZ_1K - 1))) { in ufshcd_memory_alloc()
3889 dev_err(hba->dev, in ufshcd_memory_alloc()
3896 hba->lrb = devm_kcalloc(hba->dev, in ufshcd_memory_alloc()
3897 hba->nutrs, sizeof(struct ufshcd_lrb), in ufshcd_memory_alloc()
3899 if (!hba->lrb) { in ufshcd_memory_alloc()
3900 dev_err(hba->dev, "LRB Memory allocation failed\n"); in ufshcd_memory_alloc()
3905 return -ENOMEM; in ufshcd_memory_alloc()
3909 * ufshcd_host_memory_configure - configure local reference block with
3911 * @hba: per adapter instance
3921 static void ufshcd_host_memory_configure(struct ufs_hba *hba) in ufshcd_host_memory_configure() argument
3931 utrdlp = hba->utrdl_base_addr; in ufshcd_host_memory_configure()
3938 cmd_desc_size = ufshcd_get_ucd_size(hba); in ufshcd_host_memory_configure()
3939 cmd_desc_dma_addr = hba->ucdl_dma_addr; in ufshcd_host_memory_configure()
3941 for (i = 0; i < hba->nutrs; i++) { in ufshcd_host_memory_configure()
3949 if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) { in ufshcd_host_memory_configure()
3965 ufshcd_init_lrb(hba, &hba->lrb[i], i); in ufshcd_host_memory_configure()
3970 * ufshcd_dme_link_startup - Notify Unipro to perform link startup
3971 * @hba: per adapter instance
3978 * Return: 0 on success, non-zero value on failure.
3980 static int ufshcd_dme_link_startup(struct ufs_hba *hba) in ufshcd_dme_link_startup() argument
3987 ret = ufshcd_send_uic_cmd(hba, &uic_cmd); in ufshcd_dme_link_startup()
3989 dev_dbg(hba->dev, in ufshcd_dme_link_startup()
3990 "dme-link-startup: error code %d\n", ret); in ufshcd_dme_link_startup()
3994 * ufshcd_dme_reset - UIC command for DME_RESET
3995 * @hba: per adapter instance
4000 * Return: 0 on success, non-zero value on failure.
4002 static int ufshcd_dme_reset(struct ufs_hba *hba) in ufshcd_dme_reset() argument
4009 ret = ufshcd_send_uic_cmd(hba, &uic_cmd); in ufshcd_dme_reset()
4011 dev_err(hba->dev, in ufshcd_dme_reset()
4012 "dme-reset: error code %d\n", ret); in ufshcd_dme_reset()
4017 int ufshcd_dme_configure_adapt(struct ufs_hba *hba, in ufshcd_dme_configure_adapt() argument
4026 ret = ufshcd_dme_set(hba, in ufshcd_dme_configure_adapt()
4034 * ufshcd_dme_enable - UIC command for DME_ENABLE
4035 * @hba: per adapter instance
4039 * Return: 0 on success, non-zero value on failure.
4041 static int ufshcd_dme_enable(struct ufs_hba *hba) in ufshcd_dme_enable() argument
4048 ret = ufshcd_send_uic_cmd(hba, &uic_cmd); in ufshcd_dme_enable()
4050 dev_err(hba->dev, in ufshcd_dme_enable()
4051 "dme-enable: error code %d\n", ret); in ufshcd_dme_enable()
4056 static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba) in ufshcd_add_delay_before_dme_cmd() argument
4061 if (!(hba->quirks & UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS)) in ufshcd_add_delay_before_dme_cmd()
4068 if (unlikely(!ktime_to_us(hba->last_dme_cmd_tstamp))) { in ufshcd_add_delay_before_dme_cmd()
4074 hba->last_dme_cmd_tstamp)); in ufshcd_add_delay_before_dme_cmd()
4078 MIN_DELAY_BEFORE_DME_CMDS_US - delta; in ufshcd_add_delay_before_dme_cmd()
4088 * ufshcd_dme_set_attr - UIC command for DME_SET, DME_PEER_SET
4089 * @hba: per adapter instance
4095 * Return: 0 on success, non-zero value on failure.
4097 int ufshcd_dme_set_attr(struct ufs_hba *hba, u32 attr_sel, in ufshcd_dme_set_attr() argument
4102 "dme-set", in ufshcd_dme_set_attr()
4103 "dme-peer-set" in ufshcd_dme_set_attr()
4117 ret = ufshcd_send_uic_cmd(hba, &uic_cmd); in ufshcd_dme_set_attr()
4119 dev_dbg(hba->dev, "%s: attr-id 0x%x val 0x%x error code %d\n", in ufshcd_dme_set_attr()
4121 } while (ret && peer && --retries); in ufshcd_dme_set_attr()
4124 dev_err(hba->dev, "%s: attr-id 0x%x val 0x%x failed %d retries\n", in ufshcd_dme_set_attr()
4126 UFS_UIC_COMMAND_RETRIES - retries); in ufshcd_dme_set_attr()
4133 * ufshcd_dme_get_attr - UIC command for DME_GET, DME_PEER_GET
4134 * @hba: per adapter instance
4139 * Return: 0 on success, non-zero value on failure.
4141 int ufshcd_dme_get_attr(struct ufs_hba *hba, u32 attr_sel, in ufshcd_dme_get_attr() argument
4146 "dme-get", in ufshcd_dme_get_attr()
4147 "dme-peer-get" in ufshcd_dme_get_attr()
4156 if (peer && (hba->quirks & UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE)) { in ufshcd_dme_get_attr()
4157 orig_pwr_info = hba->pwr_info; in ufshcd_dme_get_attr()
4172 ret = ufshcd_change_power_mode(hba, &temp_pwr_info); in ufshcd_dme_get_attr()
4184 ret = ufshcd_send_uic_cmd(hba, &uic_cmd); in ufshcd_dme_get_attr()
4186 dev_dbg(hba->dev, "%s: attr-id 0x%x error code %d\n", in ufshcd_dme_get_attr()
4188 } while (ret && peer && --retries); in ufshcd_dme_get_attr()
4191 dev_err(hba->dev, "%s: attr-id 0x%x failed %d retries\n", in ufshcd_dme_get_attr()
4193 UFS_UIC_COMMAND_RETRIES - retries); in ufshcd_dme_get_attr()
4198 if (peer && (hba->quirks & UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE) in ufshcd_dme_get_attr()
4200 ufshcd_change_power_mode(hba, &orig_pwr_info); in ufshcd_dme_get_attr()
4207 * ufshcd_uic_pwr_ctrl - executes UIC commands (which affects the link power
4210 * @hba: per adapter instance
4220 * Return: 0 on success, non-zero value on failure.
4222 static int ufshcd_uic_pwr_ctrl(struct ufs_hba *hba, struct uic_command *cmd) in ufshcd_uic_pwr_ctrl() argument
4230 mutex_lock(&hba->uic_cmd_mutex); in ufshcd_uic_pwr_ctrl()
4231 ufshcd_add_delay_before_dme_cmd(hba); in ufshcd_uic_pwr_ctrl()
4233 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4234 if (ufshcd_is_link_broken(hba)) { in ufshcd_uic_pwr_ctrl()
4235 ret = -ENOLINK; in ufshcd_uic_pwr_ctrl()
4238 hba->uic_async_done = &uic_async_done; in ufshcd_uic_pwr_ctrl()
4239 if (ufshcd_readl(hba, REG_INTERRUPT_ENABLE) & UIC_COMMAND_COMPL) { in ufshcd_uic_pwr_ctrl()
4240 ufshcd_disable_intr(hba, UIC_COMMAND_COMPL); in ufshcd_uic_pwr_ctrl()
4248 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4249 ret = __ufshcd_send_uic_cmd(hba, cmd, false); in ufshcd_uic_pwr_ctrl()
4251 dev_err(hba->dev, in ufshcd_uic_pwr_ctrl()
4253 cmd->command, cmd->argument3, ret); in ufshcd_uic_pwr_ctrl()
4257 if (!wait_for_completion_timeout(hba->uic_async_done, in ufshcd_uic_pwr_ctrl()
4259 dev_err(hba->dev, in ufshcd_uic_pwr_ctrl()
4261 cmd->command, cmd->argument3); in ufshcd_uic_pwr_ctrl()
4263 if (!cmd->cmd_active) { in ufshcd_uic_pwr_ctrl()
4264 dev_err(hba->dev, "%s: Power Mode Change operation has been completed, go check UPMCRS\n", in ufshcd_uic_pwr_ctrl()
4269 ret = -ETIMEDOUT; in ufshcd_uic_pwr_ctrl()
4274 status = ufshcd_get_upmcrs(hba); in ufshcd_uic_pwr_ctrl()
4276 dev_err(hba->dev, in ufshcd_uic_pwr_ctrl()
4278 cmd->command, status); in ufshcd_uic_pwr_ctrl()
4279 ret = (status != PWR_OK) ? status : -1; in ufshcd_uic_pwr_ctrl()
4283 ufshcd_print_host_state(hba); in ufshcd_uic_pwr_ctrl()
4284 ufshcd_print_pwr_info(hba); in ufshcd_uic_pwr_ctrl()
4285 ufshcd_print_evt_hist(hba); in ufshcd_uic_pwr_ctrl()
4288 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4289 hba->active_uic_cmd = NULL; in ufshcd_uic_pwr_ctrl()
4290 hba->uic_async_done = NULL; in ufshcd_uic_pwr_ctrl()
4292 ufshcd_enable_intr(hba, UIC_COMMAND_COMPL); in ufshcd_uic_pwr_ctrl()
4294 ufshcd_set_link_broken(hba); in ufshcd_uic_pwr_ctrl()
4295 ufshcd_schedule_eh_work(hba); in ufshcd_uic_pwr_ctrl()
4298 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_uic_pwr_ctrl()
4299 mutex_unlock(&hba->uic_cmd_mutex); in ufshcd_uic_pwr_ctrl()
4305 * ufshcd_uic_change_pwr_mode - Perform the UIC power mode chage
4307 * @hba: per adapter instance
4310 * Return: 0 on success, non-zero value on failure.
4312 int ufshcd_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode) in ufshcd_uic_change_pwr_mode() argument
4317 if (hba->quirks & UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP) { in ufshcd_uic_change_pwr_mode()
4318 ret = ufshcd_dme_set(hba, in ufshcd_uic_change_pwr_mode()
4321 dev_err(hba->dev, "%s: failed to enable PA_RXHSUNTERMCAP ret %d\n", in ufshcd_uic_change_pwr_mode()
4330 ufshcd_hold(hba); in ufshcd_uic_change_pwr_mode()
4331 ret = ufshcd_uic_pwr_ctrl(hba, &uic_cmd); in ufshcd_uic_change_pwr_mode()
4332 ufshcd_release(hba); in ufshcd_uic_change_pwr_mode()
4339 int ufshcd_link_recovery(struct ufs_hba *hba) in ufshcd_link_recovery() argument
4344 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_link_recovery()
4345 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_link_recovery()
4346 ufshcd_set_eh_in_progress(hba); in ufshcd_link_recovery()
4347 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_link_recovery()
4350 ufshcd_device_reset(hba); in ufshcd_link_recovery()
4352 ret = ufshcd_host_reset_and_restore(hba); in ufshcd_link_recovery()
4354 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_link_recovery()
4356 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_link_recovery()
4357 ufshcd_clear_eh_in_progress(hba); in ufshcd_link_recovery()
4358 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_link_recovery()
4361 dev_err(hba->dev, "%s: link recovery failed, err %d", in ufshcd_link_recovery()
4368 int ufshcd_uic_hibern8_enter(struct ufs_hba *hba) in ufshcd_uic_hibern8_enter() argument
4374 ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_ENTER, PRE_CHANGE); in ufshcd_uic_hibern8_enter()
4377 ret = ufshcd_uic_pwr_ctrl(hba, &uic_cmd); in ufshcd_uic_hibern8_enter()
4378 trace_ufshcd_profile_hibern8(dev_name(hba->dev), "enter", in ufshcd_uic_hibern8_enter()
4382 dev_err(hba->dev, "%s: hibern8 enter failed. ret = %d\n", in ufshcd_uic_hibern8_enter()
4385 ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_ENTER, in ufshcd_uic_hibern8_enter()
4392 int ufshcd_uic_hibern8_exit(struct ufs_hba *hba) in ufshcd_uic_hibern8_exit() argument
4398 ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_EXIT, PRE_CHANGE); in ufshcd_uic_hibern8_exit()
4401 ret = ufshcd_uic_pwr_ctrl(hba, &uic_cmd); in ufshcd_uic_hibern8_exit()
4402 trace_ufshcd_profile_hibern8(dev_name(hba->dev), "exit", in ufshcd_uic_hibern8_exit()
4406 dev_err(hba->dev, "%s: hibern8 exit failed. ret = %d\n", in ufshcd_uic_hibern8_exit()
4409 ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_EXIT, in ufshcd_uic_hibern8_exit()
4411 hba->ufs_stats.last_hibern8_exit_tstamp = local_clock(); in ufshcd_uic_hibern8_exit()
4412 hba->ufs_stats.hibern8_exit_cnt++; in ufshcd_uic_hibern8_exit()
4419 static void ufshcd_configure_auto_hibern8(struct ufs_hba *hba) in ufshcd_configure_auto_hibern8() argument
4421 if (!ufshcd_is_auto_hibern8_supported(hba)) in ufshcd_configure_auto_hibern8()
4424 ufshcd_writel(hba, hba->ahit, REG_AUTO_HIBERNATE_IDLE_TIMER); in ufshcd_configure_auto_hibern8()
4427 void ufshcd_auto_hibern8_update(struct ufs_hba *hba, u32 ahit) in ufshcd_auto_hibern8_update() argument
4429 const u32 cur_ahit = READ_ONCE(hba->ahit); in ufshcd_auto_hibern8_update()
4431 if (!ufshcd_is_auto_hibern8_supported(hba) || cur_ahit == ahit) in ufshcd_auto_hibern8_update()
4434 WRITE_ONCE(hba->ahit, ahit); in ufshcd_auto_hibern8_update()
4435 if (!pm_runtime_suspended(&hba->ufs_device_wlun->sdev_gendev)) { in ufshcd_auto_hibern8_update()
4436 ufshcd_rpm_get_sync(hba); in ufshcd_auto_hibern8_update()
4437 ufshcd_hold(hba); in ufshcd_auto_hibern8_update()
4438 ufshcd_configure_auto_hibern8(hba); in ufshcd_auto_hibern8_update()
4439 ufshcd_release(hba); in ufshcd_auto_hibern8_update()
4440 ufshcd_rpm_put_sync(hba); in ufshcd_auto_hibern8_update()
4446 * ufshcd_init_pwr_info - setting the POR (power on reset)
4447 * values in hba power info
4448 * @hba: per-adapter instance
4450 static void ufshcd_init_pwr_info(struct ufs_hba *hba) in ufshcd_init_pwr_info() argument
4452 hba->pwr_info.gear_rx = UFS_PWM_G1; in ufshcd_init_pwr_info()
4453 hba->pwr_info.gear_tx = UFS_PWM_G1; in ufshcd_init_pwr_info()
4454 hba->pwr_info.lane_rx = UFS_LANE_1; in ufshcd_init_pwr_info()
4455 hba->pwr_info.lane_tx = UFS_LANE_1; in ufshcd_init_pwr_info()
4456 hba->pwr_info.pwr_rx = SLOWAUTO_MODE; in ufshcd_init_pwr_info()
4457 hba->pwr_info.pwr_tx = SLOWAUTO_MODE; in ufshcd_init_pwr_info()
4458 hba->pwr_info.hs_rate = 0; in ufshcd_init_pwr_info()
4462 * ufshcd_get_max_pwr_mode - reads the max power mode negotiated with device
4463 * @hba: per-adapter instance
4467 static int ufshcd_get_max_pwr_mode(struct ufs_hba *hba) in ufshcd_get_max_pwr_mode() argument
4469 struct ufs_pa_layer_attr *pwr_info = &hba->max_pwr_info.info; in ufshcd_get_max_pwr_mode()
4471 if (hba->max_pwr_info.is_valid) in ufshcd_get_max_pwr_mode()
4474 if (hba->quirks & UFSHCD_QUIRK_HIBERN_FASTAUTO) { in ufshcd_get_max_pwr_mode()
4475 pwr_info->pwr_tx = FASTAUTO_MODE; in ufshcd_get_max_pwr_mode()
4476 pwr_info->pwr_rx = FASTAUTO_MODE; in ufshcd_get_max_pwr_mode()
4478 pwr_info->pwr_tx = FAST_MODE; in ufshcd_get_max_pwr_mode()
4479 pwr_info->pwr_rx = FAST_MODE; in ufshcd_get_max_pwr_mode()
4481 pwr_info->hs_rate = PA_HS_MODE_B; in ufshcd_get_max_pwr_mode()
4484 ufshcd_dme_get(hba, UIC_ARG_MIB(PA_CONNECTEDRXDATALANES), in ufshcd_get_max_pwr_mode()
4485 &pwr_info->lane_rx); in ufshcd_get_max_pwr_mode()
4486 ufshcd_dme_get(hba, UIC_ARG_MIB(PA_CONNECTEDTXDATALANES), in ufshcd_get_max_pwr_mode()
4487 &pwr_info->lane_tx); in ufshcd_get_max_pwr_mode()
4489 if (!pwr_info->lane_rx || !pwr_info->lane_tx) { in ufshcd_get_max_pwr_mode()
4490 dev_err(hba->dev, "%s: invalid connected lanes value. rx=%d, tx=%d\n", in ufshcd_get_max_pwr_mode()
4492 pwr_info->lane_rx, in ufshcd_get_max_pwr_mode()
4493 pwr_info->lane_tx); in ufshcd_get_max_pwr_mode()
4494 return -EINVAL; in ufshcd_get_max_pwr_mode()
4502 ufshcd_dme_get(hba, UIC_ARG_MIB(PA_MAXRXHSGEAR), &pwr_info->gear_rx); in ufshcd_get_max_pwr_mode()
4503 if (!pwr_info->gear_rx) { in ufshcd_get_max_pwr_mode()
4504 ufshcd_dme_get(hba, UIC_ARG_MIB(PA_MAXRXPWMGEAR), in ufshcd_get_max_pwr_mode()
4505 &pwr_info->gear_rx); in ufshcd_get_max_pwr_mode()
4506 if (!pwr_info->gear_rx) { in ufshcd_get_max_pwr_mode()
4507 dev_err(hba->dev, "%s: invalid max pwm rx gear read = %d\n", in ufshcd_get_max_pwr_mode()
4508 __func__, pwr_info->gear_rx); in ufshcd_get_max_pwr_mode()
4509 return -EINVAL; in ufshcd_get_max_pwr_mode()
4511 pwr_info->pwr_rx = SLOW_MODE; in ufshcd_get_max_pwr_mode()
4514 ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_MAXRXHSGEAR), in ufshcd_get_max_pwr_mode()
4515 &pwr_info->gear_tx); in ufshcd_get_max_pwr_mode()
4516 if (!pwr_info->gear_tx) { in ufshcd_get_max_pwr_mode()
4517 ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_MAXRXPWMGEAR), in ufshcd_get_max_pwr_mode()
4518 &pwr_info->gear_tx); in ufshcd_get_max_pwr_mode()
4519 if (!pwr_info->gear_tx) { in ufshcd_get_max_pwr_mode()
4520 dev_err(hba->dev, "%s: invalid max pwm tx gear read = %d\n", in ufshcd_get_max_pwr_mode()
4521 __func__, pwr_info->gear_tx); in ufshcd_get_max_pwr_mode()
4522 return -EINVAL; in ufshcd_get_max_pwr_mode()
4524 pwr_info->pwr_tx = SLOW_MODE; in ufshcd_get_max_pwr_mode()
4527 hba->max_pwr_info.is_valid = true; in ufshcd_get_max_pwr_mode()
4531 static int ufshcd_change_power_mode(struct ufs_hba *hba, in ufshcd_change_power_mode() argument
4537 if (!hba->force_pmc && in ufshcd_change_power_mode()
4538 pwr_mode->gear_rx == hba->pwr_info.gear_rx && in ufshcd_change_power_mode()
4539 pwr_mode->gear_tx == hba->pwr_info.gear_tx && in ufshcd_change_power_mode()
4540 pwr_mode->lane_rx == hba->pwr_info.lane_rx && in ufshcd_change_power_mode()
4541 pwr_mode->lane_tx == hba->pwr_info.lane_tx && in ufshcd_change_power_mode()
4542 pwr_mode->pwr_rx == hba->pwr_info.pwr_rx && in ufshcd_change_power_mode()
4543 pwr_mode->pwr_tx == hba->pwr_info.pwr_tx && in ufshcd_change_power_mode()
4544 pwr_mode->hs_rate == hba->pwr_info.hs_rate) { in ufshcd_change_power_mode()
4545 dev_dbg(hba->dev, "%s: power already configured\n", __func__); in ufshcd_change_power_mode()
4551 * - PA_RXGEAR, PA_ACTIVERXDATALANES, PA_RXTERMINATION, in ufshcd_change_power_mode()
4552 * - PA_TXGEAR, PA_ACTIVETXDATALANES, PA_TXTERMINATION, in ufshcd_change_power_mode()
4553 * - PA_HSSERIES in ufshcd_change_power_mode()
4555 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_RXGEAR), pwr_mode->gear_rx); in ufshcd_change_power_mode()
4556 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_ACTIVERXDATALANES), in ufshcd_change_power_mode()
4557 pwr_mode->lane_rx); in ufshcd_change_power_mode()
4558 if (pwr_mode->pwr_rx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4559 pwr_mode->pwr_rx == FAST_MODE) in ufshcd_change_power_mode()
4560 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_RXTERMINATION), true); in ufshcd_change_power_mode()
4562 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_RXTERMINATION), false); in ufshcd_change_power_mode()
4564 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TXGEAR), pwr_mode->gear_tx); in ufshcd_change_power_mode()
4565 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_ACTIVETXDATALANES), in ufshcd_change_power_mode()
4566 pwr_mode->lane_tx); in ufshcd_change_power_mode()
4567 if (pwr_mode->pwr_tx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4568 pwr_mode->pwr_tx == FAST_MODE) in ufshcd_change_power_mode()
4569 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TXTERMINATION), true); in ufshcd_change_power_mode()
4571 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TXTERMINATION), false); in ufshcd_change_power_mode()
4573 if (pwr_mode->pwr_rx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4574 pwr_mode->pwr_tx == FASTAUTO_MODE || in ufshcd_change_power_mode()
4575 pwr_mode->pwr_rx == FAST_MODE || in ufshcd_change_power_mode()
4576 pwr_mode->pwr_tx == FAST_MODE) in ufshcd_change_power_mode()
4577 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_HSSERIES), in ufshcd_change_power_mode()
4578 pwr_mode->hs_rate); in ufshcd_change_power_mode()
4580 if (!(hba->quirks & UFSHCD_QUIRK_SKIP_DEF_UNIPRO_TIMEOUT_SETTING)) { in ufshcd_change_power_mode()
4581 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA0), in ufshcd_change_power_mode()
4583 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA1), in ufshcd_change_power_mode()
4585 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA2), in ufshcd_change_power_mode()
4587 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA3), in ufshcd_change_power_mode()
4589 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA4), in ufshcd_change_power_mode()
4591 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA5), in ufshcd_change_power_mode()
4594 ufshcd_dme_set(hba, UIC_ARG_MIB(DME_LocalFC0ProtectionTimeOutVal), in ufshcd_change_power_mode()
4596 ufshcd_dme_set(hba, UIC_ARG_MIB(DME_LocalTC0ReplayTimeOutVal), in ufshcd_change_power_mode()
4598 ufshcd_dme_set(hba, UIC_ARG_MIB(DME_LocalAFC0ReqTimeOutVal), in ufshcd_change_power_mode()
4602 ret = ufshcd_uic_change_pwr_mode(hba, pwr_mode->pwr_rx << 4 in ufshcd_change_power_mode()
4603 | pwr_mode->pwr_tx); in ufshcd_change_power_mode()
4606 dev_err(hba->dev, in ufshcd_change_power_mode()
4609 ufshcd_vops_pwr_change_notify(hba, POST_CHANGE, NULL, in ufshcd_change_power_mode()
4612 memcpy(&hba->pwr_info, pwr_mode, in ufshcd_change_power_mode()
4620 * ufshcd_config_pwr_mode - configure a new power mode
4621 * @hba: per-adapter instance
4626 int ufshcd_config_pwr_mode(struct ufs_hba *hba, in ufshcd_config_pwr_mode() argument
4632 ret = ufshcd_vops_pwr_change_notify(hba, PRE_CHANGE, in ufshcd_config_pwr_mode()
4638 ret = ufshcd_change_power_mode(hba, &final_params); in ufshcd_config_pwr_mode()
4645 * ufshcd_complete_dev_init() - checks device readiness
4646 * @hba: per-adapter instance
4652 static int ufshcd_complete_dev_init(struct ufs_hba *hba) in ufshcd_complete_dev_init() argument
4658 err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_SET_FLAG, in ufshcd_complete_dev_init()
4661 dev_err(hba->dev, in ufshcd_complete_dev_init()
4670 err = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, in ufshcd_complete_dev_init()
4678 dev_err(hba->dev, in ufshcd_complete_dev_init()
4682 dev_err(hba->dev, in ufshcd_complete_dev_init()
4685 err = -EBUSY; in ufshcd_complete_dev_init()
4692 * ufshcd_make_hba_operational - Make UFS controller operational
4693 * @hba: per adapter instance
4699 * 4. Configure run-stop-registers
4701 * Return: 0 on success, non-zero value on failure.
4703 int ufshcd_make_hba_operational(struct ufs_hba *hba) in ufshcd_make_hba_operational() argument
4709 ufshcd_enable_intr(hba, UFSHCD_ENABLE_INTRS); in ufshcd_make_hba_operational()
4712 if (ufshcd_is_intr_aggr_allowed(hba)) in ufshcd_make_hba_operational()
4713 ufshcd_config_intr_aggr(hba, hba->nutrs - 1, INT_AGGR_DEF_TO); in ufshcd_make_hba_operational()
4715 ufshcd_disable_intr_aggr(hba); in ufshcd_make_hba_operational()
4718 ufshcd_writel(hba, lower_32_bits(hba->utrdl_dma_addr), in ufshcd_make_hba_operational()
4720 ufshcd_writel(hba, upper_32_bits(hba->utrdl_dma_addr), in ufshcd_make_hba_operational()
4722 ufshcd_writel(hba, lower_32_bits(hba->utmrdl_dma_addr), in ufshcd_make_hba_operational()
4724 ufshcd_writel(hba, upper_32_bits(hba->utmrdl_dma_addr), in ufshcd_make_hba_operational()
4736 reg = ufshcd_readl(hba, REG_CONTROLLER_STATUS); in ufshcd_make_hba_operational()
4738 ufshcd_enable_run_stop_reg(hba); in ufshcd_make_hba_operational()
4740 dev_err(hba->dev, in ufshcd_make_hba_operational()
4742 err = -EIO; in ufshcd_make_hba_operational()
4750 * ufshcd_hba_stop - Send controller to reset state
4751 * @hba: per adapter instance
4753 void ufshcd_hba_stop(struct ufs_hba *hba) in ufshcd_hba_stop() argument
4762 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_hba_stop()
4763 ufshcd_writel(hba, CONTROLLER_DISABLE, REG_CONTROLLER_ENABLE); in ufshcd_hba_stop()
4764 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_hba_stop()
4766 err = ufshcd_wait_for_register(hba, REG_CONTROLLER_ENABLE, in ufshcd_hba_stop()
4770 dev_err(hba->dev, "%s: Controller disable failed\n", __func__); in ufshcd_hba_stop()
4775 * ufshcd_hba_execute_hce - initialize the controller
4776 * @hba: per adapter instance
4782 * Return: 0 on success, non-zero value on failure.
4784 static int ufshcd_hba_execute_hce(struct ufs_hba *hba) in ufshcd_hba_execute_hce() argument
4790 if (ufshcd_is_hba_active(hba)) in ufshcd_hba_execute_hce()
4792 ufshcd_hba_stop(hba); in ufshcd_hba_execute_hce()
4795 ufshcd_set_link_off(hba); in ufshcd_hba_execute_hce()
4797 ufshcd_vops_hce_enable_notify(hba, PRE_CHANGE); in ufshcd_hba_execute_hce()
4800 ufshcd_hba_start(hba); in ufshcd_hba_execute_hce()
4804 * During initialization the HCE bit value changes from 1->0->1. in ufshcd_hba_execute_hce()
4812 ufshcd_delay_us(hba->vps->hba_enable_delay_us, 100); in ufshcd_hba_execute_hce()
4816 while (!ufshcd_is_hba_active(hba)) { in ufshcd_hba_execute_hce()
4818 retry_inner--; in ufshcd_hba_execute_hce()
4820 dev_err(hba->dev, in ufshcd_hba_execute_hce()
4823 retry_outer--; in ufshcd_hba_execute_hce()
4826 return -EIO; in ufshcd_hba_execute_hce()
4832 ufshcd_enable_intr(hba, UFSHCD_UIC_MASK); in ufshcd_hba_execute_hce()
4834 ufshcd_vops_hce_enable_notify(hba, POST_CHANGE); in ufshcd_hba_execute_hce()
4839 int ufshcd_hba_enable(struct ufs_hba *hba) in ufshcd_hba_enable() argument
4843 if (hba->quirks & UFSHCI_QUIRK_BROKEN_HCE) { in ufshcd_hba_enable()
4844 ufshcd_set_link_off(hba); in ufshcd_hba_enable()
4845 ufshcd_vops_hce_enable_notify(hba, PRE_CHANGE); in ufshcd_hba_enable()
4848 ufshcd_enable_intr(hba, UFSHCD_UIC_MASK); in ufshcd_hba_enable()
4849 ret = ufshcd_dme_reset(hba); in ufshcd_hba_enable()
4851 dev_err(hba->dev, "DME_RESET failed\n"); in ufshcd_hba_enable()
4855 ret = ufshcd_dme_enable(hba); in ufshcd_hba_enable()
4857 dev_err(hba->dev, "Enabling DME failed\n"); in ufshcd_hba_enable()
4861 ufshcd_vops_hce_enable_notify(hba, POST_CHANGE); in ufshcd_hba_enable()
4863 ret = ufshcd_hba_execute_hce(hba); in ufshcd_hba_enable()
4870 static int ufshcd_disable_tx_lcc(struct ufs_hba *hba, bool peer) in ufshcd_disable_tx_lcc() argument
4875 ufshcd_dme_get(hba, UIC_ARG_MIB(PA_CONNECTEDTXDATALANES), in ufshcd_disable_tx_lcc()
4878 ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_CONNECTEDTXDATALANES), in ufshcd_disable_tx_lcc()
4882 err = ufshcd_dme_set(hba, in ufshcd_disable_tx_lcc()
4887 err = ufshcd_dme_peer_set(hba, in ufshcd_disable_tx_lcc()
4892 dev_err(hba->dev, "%s: TX LCC Disable failed, peer = %d, lane = %d, err = %d", in ufshcd_disable_tx_lcc()
4901 static inline int ufshcd_disable_device_tx_lcc(struct ufs_hba *hba) in ufshcd_disable_device_tx_lcc() argument
4903 return ufshcd_disable_tx_lcc(hba, true); in ufshcd_disable_device_tx_lcc()
4906 void ufshcd_update_evt_hist(struct ufs_hba *hba, u32 id, u32 val) in ufshcd_update_evt_hist() argument
4913 e = &hba->ufs_stats.event[id]; in ufshcd_update_evt_hist()
4914 e->val[e->pos] = val; in ufshcd_update_evt_hist()
4915 e->tstamp[e->pos] = local_clock(); in ufshcd_update_evt_hist()
4916 e->cnt += 1; in ufshcd_update_evt_hist()
4917 e->pos = (e->pos + 1) % UFS_EVENT_HIST_LENGTH; in ufshcd_update_evt_hist()
4919 ufshcd_vops_event_notify(hba, id, &val); in ufshcd_update_evt_hist()
4924 * ufshcd_link_startup - Initialize unipro link startup
4925 * @hba: per adapter instance
4927 * Return: 0 for success, non-zero in case of failure.
4929 static int ufshcd_link_startup(struct ufs_hba *hba) in ufshcd_link_startup() argument
4939 if (!ufshcd_is_ufs_dev_active(hba)) in ufshcd_link_startup()
4944 ufshcd_vops_link_startup_notify(hba, PRE_CHANGE); in ufshcd_link_startup()
4946 ret = ufshcd_dme_link_startup(hba); in ufshcd_link_startup()
4948 /* check if device is detected by inter-connect layer */ in ufshcd_link_startup()
4949 if (!ret && !ufshcd_is_device_present(hba)) { in ufshcd_link_startup()
4950 ufshcd_update_evt_hist(hba, in ufshcd_link_startup()
4953 dev_err(hba->dev, "%s: Device not present\n", __func__); in ufshcd_link_startup()
4954 ret = -ENXIO; in ufshcd_link_startup()
4961 * succeeds. So reset the local Uni-Pro and try again. in ufshcd_link_startup()
4963 if (ret && retries && ufshcd_hba_enable(hba)) { in ufshcd_link_startup()
4964 ufshcd_update_evt_hist(hba, in ufshcd_link_startup()
4969 } while (ret && retries--); in ufshcd_link_startup()
4973 ufshcd_update_evt_hist(hba, in ufshcd_link_startup()
4985 /* Mark that link is up in PWM-G1, 1-lane, SLOW-AUTO mode */ in ufshcd_link_startup()
4986 ufshcd_init_pwr_info(hba); in ufshcd_link_startup()
4987 ufshcd_print_pwr_info(hba); in ufshcd_link_startup()
4989 if (hba->quirks & UFSHCD_QUIRK_BROKEN_LCC) { in ufshcd_link_startup()
4990 ret = ufshcd_disable_device_tx_lcc(hba); in ufshcd_link_startup()
4996 ret = ufshcd_vops_link_startup_notify(hba, POST_CHANGE); in ufshcd_link_startup()
5001 ufshcd_readl(hba, REG_UIC_ERROR_CODE_PHY_ADAPTER_LAYER); in ufshcd_link_startup()
5002 ret = ufshcd_make_hba_operational(hba); in ufshcd_link_startup()
5005 dev_err(hba->dev, "link startup failed %d\n", ret); in ufshcd_link_startup()
5006 ufshcd_print_host_state(hba); in ufshcd_link_startup()
5007 ufshcd_print_pwr_info(hba); in ufshcd_link_startup()
5008 ufshcd_print_evt_hist(hba); in ufshcd_link_startup()
5014 * ufshcd_verify_dev_init() - Verify device initialization
5015 * @hba: per-adapter instance
5025 static int ufshcd_verify_dev_init(struct ufs_hba *hba) in ufshcd_verify_dev_init() argument
5030 ufshcd_hold(hba); in ufshcd_verify_dev_init()
5031 mutex_lock(&hba->dev_cmd.lock); in ufshcd_verify_dev_init()
5032 for (retries = NOP_OUT_RETRIES; retries > 0; retries--) { in ufshcd_verify_dev_init()
5033 err = ufshcd_exec_dev_cmd(hba, DEV_CMD_TYPE_NOP, in ufshcd_verify_dev_init()
5034 hba->nop_out_timeout); in ufshcd_verify_dev_init()
5036 if (!err || err == -ETIMEDOUT) in ufshcd_verify_dev_init()
5039 dev_dbg(hba->dev, "%s: error %d retrying\n", __func__, err); in ufshcd_verify_dev_init()
5041 mutex_unlock(&hba->dev_cmd.lock); in ufshcd_verify_dev_init()
5042 ufshcd_release(hba); in ufshcd_verify_dev_init()
5045 dev_err(hba->dev, "%s: NOP OUT failed %d\n", __func__, err); in ufshcd_verify_dev_init()
5050 * ufshcd_setup_links - associate link b/w device wlun and other luns
5052 * @hba: pointer to ufs hba
5054 static void ufshcd_setup_links(struct ufs_hba *hba, struct scsi_device *sdev) in ufshcd_setup_links() argument
5062 if (hba->ufs_device_wlun) { in ufshcd_setup_links()
5063 link = device_link_add(&sdev->sdev_gendev, in ufshcd_setup_links()
5064 &hba->ufs_device_wlun->sdev_gendev, in ufshcd_setup_links()
5067 dev_err(&sdev->sdev_gendev, "Failed establishing link - %s\n", in ufshcd_setup_links()
5068 dev_name(&hba->ufs_device_wlun->sdev_gendev)); in ufshcd_setup_links()
5071 hba->luns_avail--; in ufshcd_setup_links()
5073 if (hba->luns_avail == 1) { in ufshcd_setup_links()
5074 ufshcd_rpm_put(hba); in ufshcd_setup_links()
5082 hba->luns_avail--; in ufshcd_setup_links()
5087 * ufshcd_lu_init - Initialize the relevant parameters of the LU
5088 * @hba: per-adapter instance
5091 static void ufshcd_lu_init(struct ufs_hba *hba, struct scsi_device *sdev) in ufshcd_lu_init() argument
5094 u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun); in ufshcd_lu_init()
5095 u8 lun_qdepth = hba->nutrs; in ufshcd_lu_init()
5103 ret = ufshcd_read_unit_desc_param(hba, lun, 0, desc_buf, len); in ufshcd_lu_init()
5105 if (ret == -EOPNOTSUPP) in ufshcd_lu_init()
5114 * In per-LU queueing architecture, bLUQueueDepth will not be 0, then we will in ufshcd_lu_init()
5115 * use the smaller between UFSHCI CAP.NUTRS and UFS LU bLUQueueDepth in ufshcd_lu_init()
5117 lun_qdepth = min_t(int, desc_buf[UNIT_DESC_PARAM_LU_Q_DEPTH], hba->nutrs); in ufshcd_lu_init()
5123 if (hba->dev_info.f_power_on_wp_en && lun < hba->dev_info.max_lu_supported && in ufshcd_lu_init()
5124 !hba->dev_info.is_lu_power_on_wp && in ufshcd_lu_init()
5126 hba->dev_info.is_lu_power_on_wp = true; in ufshcd_lu_init()
5131 hba->dev_info.b_advanced_rpmb_en = true; in ufshcd_lu_init()
5140 dev_dbg(hba->dev, "Set LU %x queue depth %d\n", lun, lun_qdepth); in ufshcd_lu_init()
5145 * ufshcd_slave_alloc - handle initial SCSI device configurations
5152 struct ufs_hba *hba; in ufshcd_slave_alloc() local
5154 hba = shost_priv(sdev->host); in ufshcd_slave_alloc()
5157 sdev->use_10_for_ms = 1; in ufshcd_slave_alloc()
5160 sdev->set_dbd_for_ms = 1; in ufshcd_slave_alloc()
5163 sdev->allow_restart = 1; in ufshcd_slave_alloc()
5166 sdev->no_report_opcodes = 1; in ufshcd_slave_alloc()
5169 sdev->no_write_same = 1; in ufshcd_slave_alloc()
5171 ufshcd_lu_init(hba, sdev); in ufshcd_slave_alloc()
5173 ufshcd_setup_links(hba, sdev); in ufshcd_slave_alloc()
5179 * ufshcd_change_queue_depth - change queue depth
5189 return scsi_change_queue_depth(sdev, min(depth, sdev->host->can_queue)); in ufshcd_change_queue_depth()
5193 * ufshcd_slave_configure - adjust SCSI device configurations
5200 struct ufs_hba *hba = shost_priv(sdev->host); in ufshcd_slave_configure() local
5201 struct request_queue *q = sdev->request_queue; in ufshcd_slave_configure()
5203 blk_queue_update_dma_pad(q, PRDT_DATA_BYTE_COUNT_PAD - 1); in ufshcd_slave_configure()
5206 * Block runtime-pm until all consumers are added. in ufshcd_slave_configure()
5210 pm_runtime_get_noresume(&sdev->sdev_gendev); in ufshcd_slave_configure()
5211 else if (ufshcd_is_rpm_autosuspend_allowed(hba)) in ufshcd_slave_configure()
5212 sdev->rpm_autosuspend = 1; in ufshcd_slave_configure()
5214 * Do not print messages during runtime PM to avoid never-ending cycles in ufshcd_slave_configure()
5218 sdev->silence_suspend = 1; in ufshcd_slave_configure()
5220 if (hba->vops && hba->vops->config_scsi_dev) in ufshcd_slave_configure()
5221 hba->vops->config_scsi_dev(sdev); in ufshcd_slave_configure()
5223 ufshcd_crypto_register(hba, q); in ufshcd_slave_configure()
5229 * ufshcd_slave_destroy - remove SCSI device configurations
5234 struct ufs_hba *hba; in ufshcd_slave_destroy() local
5237 hba = shost_priv(sdev->host); in ufshcd_slave_destroy()
5240 if (ufshcd_scsi_to_upiu_lun(sdev->lun) == UFS_UPIU_UFS_DEVICE_WLUN) { in ufshcd_slave_destroy()
5241 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_slave_destroy()
5242 hba->ufs_device_wlun = NULL; in ufshcd_slave_destroy()
5243 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_slave_destroy()
5244 } else if (hba->ufs_device_wlun) { in ufshcd_slave_destroy()
5248 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_slave_destroy()
5249 if (hba->ufs_device_wlun) { in ufshcd_slave_destroy()
5250 supplier = &hba->ufs_device_wlun->sdev_gendev; in ufshcd_slave_destroy()
5253 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_slave_destroy()
5261 device_link_remove(&sdev->sdev_gendev, supplier); in ufshcd_slave_destroy()
5268 * ufshcd_scsi_cmd_status - Update SCSI command result based on SCSI status
5301 * ufshcd_transfer_rsp_status - Get overall status of the response
5302 * @hba: per adapter instance
5309 ufshcd_transfer_rsp_status(struct ufs_hba *hba, struct ufshcd_lrb *lrbp, in ufshcd_transfer_rsp_status() argument
5318 upiu_flags = lrbp->ucd_rsp_ptr->header.flags; in ufshcd_transfer_rsp_status()
5319 resid = be32_to_cpu(lrbp->ucd_rsp_ptr->sr.residual_transfer_count); in ufshcd_transfer_rsp_status()
5325 scsi_set_resid(lrbp->cmd, resid); in ufshcd_transfer_rsp_status()
5330 if (hba->quirks & UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR) { in ufshcd_transfer_rsp_status()
5331 if (lrbp->ucd_rsp_ptr->header.response || in ufshcd_transfer_rsp_status()
5332 lrbp->ucd_rsp_ptr->header.status) in ufshcd_transfer_rsp_status()
5338 hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); in ufshcd_transfer_rsp_status()
5339 switch (ufshcd_get_req_rsp(lrbp->ucd_rsp_ptr)) { in ufshcd_transfer_rsp_status()
5345 scsi_status = lrbp->ucd_rsp_ptr->header.status; in ufshcd_transfer_rsp_status()
5360 if (!hba->pm_op_in_progress && in ufshcd_transfer_rsp_status()
5361 !ufshcd_eh_in_progress(hba) && in ufshcd_transfer_rsp_status()
5362 ufshcd_is_exception_event(lrbp->ucd_rsp_ptr)) in ufshcd_transfer_rsp_status()
5364 schedule_work(&hba->eeh_work); in ufshcd_transfer_rsp_status()
5369 dev_err(hba->dev, in ufshcd_transfer_rsp_status()
5373 dev_err(hba->dev, in ufshcd_transfer_rsp_status()
5397 dev_err(hba->dev, in ufshcd_transfer_rsp_status()
5399 ocs, lrbp->task_tag); in ufshcd_transfer_rsp_status()
5400 ufshcd_print_evt_hist(hba); in ufshcd_transfer_rsp_status()
5401 ufshcd_print_host_state(hba); in ufshcd_transfer_rsp_status()
5406 (host_byte(result) != DID_REQUEUE) && !hba->silence_err_logs) in ufshcd_transfer_rsp_status()
5407 ufshcd_print_tr(hba, lrbp->task_tag, true); in ufshcd_transfer_rsp_status()
5411 static bool ufshcd_is_auto_hibern8_error(struct ufs_hba *hba, in ufshcd_is_auto_hibern8_error() argument
5414 if (!ufshcd_is_auto_hibern8_supported(hba) || in ufshcd_is_auto_hibern8_error()
5415 !ufshcd_is_auto_hibern8_enabled(hba)) in ufshcd_is_auto_hibern8_error()
5421 if (hba->active_uic_cmd && in ufshcd_is_auto_hibern8_error()
5422 (hba->active_uic_cmd->command == UIC_CMD_DME_HIBER_ENTER || in ufshcd_is_auto_hibern8_error()
5423 hba->active_uic_cmd->command == UIC_CMD_DME_HIBER_EXIT)) in ufshcd_is_auto_hibern8_error()
5430 * ufshcd_uic_cmd_compl - handle completion of uic command
5431 * @hba: per adapter instance
5435 * IRQ_HANDLED - If interrupt is valid
5436 * IRQ_NONE - If invalid interrupt
5438 static irqreturn_t ufshcd_uic_cmd_compl(struct ufs_hba *hba, u32 intr_status) in ufshcd_uic_cmd_compl() argument
5442 spin_lock(hba->host->host_lock); in ufshcd_uic_cmd_compl()
5443 if (ufshcd_is_auto_hibern8_error(hba, intr_status)) in ufshcd_uic_cmd_compl()
5444 hba->errors |= (UFSHCD_UIC_HIBERN8_MASK & intr_status); in ufshcd_uic_cmd_compl()
5446 if ((intr_status & UIC_COMMAND_COMPL) && hba->active_uic_cmd) { in ufshcd_uic_cmd_compl()
5447 hba->active_uic_cmd->argument2 |= in ufshcd_uic_cmd_compl()
5448 ufshcd_get_uic_cmd_result(hba); in ufshcd_uic_cmd_compl()
5449 hba->active_uic_cmd->argument3 = in ufshcd_uic_cmd_compl()
5450 ufshcd_get_dme_attr_val(hba); in ufshcd_uic_cmd_compl()
5451 if (!hba->uic_async_done) in ufshcd_uic_cmd_compl()
5452 hba->active_uic_cmd->cmd_active = 0; in ufshcd_uic_cmd_compl()
5453 complete(&hba->active_uic_cmd->done); in ufshcd_uic_cmd_compl()
5457 if ((intr_status & UFSHCD_UIC_PWR_MASK) && hba->uic_async_done) { in ufshcd_uic_cmd_compl()
5458 hba->active_uic_cmd->cmd_active = 0; in ufshcd_uic_cmd_compl()
5459 complete(hba->uic_async_done); in ufshcd_uic_cmd_compl()
5464 ufshcd_add_uic_command_trace(hba, hba->active_uic_cmd, in ufshcd_uic_cmd_compl()
5466 spin_unlock(hba->host->host_lock); in ufshcd_uic_cmd_compl()
5471 void ufshcd_release_scsi_cmd(struct ufs_hba *hba, in ufshcd_release_scsi_cmd() argument
5474 struct scsi_cmnd *cmd = lrbp->cmd; in ufshcd_release_scsi_cmd()
5477 ufshcd_release(hba); in ufshcd_release_scsi_cmd()
5478 ufshcd_clk_scaling_update_busy(hba); in ufshcd_release_scsi_cmd()
5482 * ufshcd_compl_one_cqe - handle a completion queue entry
5483 * @hba: per adapter instance
5487 void ufshcd_compl_one_cqe(struct ufs_hba *hba, int task_tag, in ufshcd_compl_one_cqe() argument
5494 lrbp = &hba->lrb[task_tag]; in ufshcd_compl_one_cqe()
5495 lrbp->compl_time_stamp = ktime_get(); in ufshcd_compl_one_cqe()
5496 cmd = lrbp->cmd; in ufshcd_compl_one_cqe()
5498 if (unlikely(ufshcd_should_inform_monitor(hba, lrbp))) in ufshcd_compl_one_cqe()
5499 ufshcd_update_monitor(hba, lrbp); in ufshcd_compl_one_cqe()
5500 ufshcd_add_command_trace(hba, task_tag, UFS_CMD_COMP); in ufshcd_compl_one_cqe()
5501 cmd->result = ufshcd_transfer_rsp_status(hba, lrbp, cqe); in ufshcd_compl_one_cqe()
5502 ufshcd_release_scsi_cmd(hba, lrbp); in ufshcd_compl_one_cqe()
5505 } else if (lrbp->command_type == UTP_CMD_TYPE_DEV_MANAGE || in ufshcd_compl_one_cqe()
5506 lrbp->command_type == UTP_CMD_TYPE_UFS_STORAGE) { in ufshcd_compl_one_cqe()
5507 if (hba->dev_cmd.complete) { in ufshcd_compl_one_cqe()
5509 ocs = le32_to_cpu(cqe->status) & MASK_OCS; in ufshcd_compl_one_cqe()
5510 lrbp->utr_descriptor_ptr->header.ocs = ocs; in ufshcd_compl_one_cqe()
5512 complete(hba->dev_cmd.complete); in ufshcd_compl_one_cqe()
5518 * __ufshcd_transfer_req_compl - handle SCSI and query command completion
5519 * @hba: per adapter instance
5522 static void __ufshcd_transfer_req_compl(struct ufs_hba *hba, in __ufshcd_transfer_req_compl() argument
5527 for_each_set_bit(tag, &completed_reqs, hba->nutrs) in __ufshcd_transfer_req_compl()
5528 ufshcd_compl_one_cqe(hba, tag, NULL); in __ufshcd_transfer_req_compl()
5533 UFSHCD_POLL_FROM_INTERRUPT_CONTEXT = -1
5536 static void ufshcd_clear_polled(struct ufs_hba *hba, in ufshcd_clear_polled() argument
5541 for_each_set_bit(tag, completed_reqs, hba->nutrs) { in ufshcd_clear_polled()
5542 struct scsi_cmnd *cmd = hba->lrb[tag].cmd; in ufshcd_clear_polled()
5546 if (scsi_cmd_to_rq(cmd)->cmd_flags & REQ_POLLED) in ufshcd_clear_polled()
5557 struct ufs_hba *hba = shost_priv(shost); in ufshcd_poll() local
5562 if (is_mcq_enabled(hba)) { in ufshcd_poll()
5563 hwq = &hba->uhq[queue_num]; in ufshcd_poll()
5565 return ufshcd_mcq_poll_cqe_lock(hba, hwq); in ufshcd_poll()
5568 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_poll()
5569 tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL); in ufshcd_poll()
5570 completed_reqs = ~tr_doorbell & hba->outstanding_reqs; in ufshcd_poll()
5571 WARN_ONCE(completed_reqs & ~hba->outstanding_reqs, in ufshcd_poll()
5573 hba->outstanding_reqs); in ufshcd_poll()
5576 ufshcd_clear_polled(hba, &completed_reqs); in ufshcd_poll()
5578 hba->outstanding_reqs &= ~completed_reqs; in ufshcd_poll()
5579 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_poll()
5582 __ufshcd_transfer_req_compl(hba, completed_reqs); in ufshcd_poll()
5588 * ufshcd_mcq_compl_pending_transfer - MCQ mode function. It is
5593 * @hba: per adapter instance
5598 static void ufshcd_mcq_compl_pending_transfer(struct ufs_hba *hba, in ufshcd_mcq_compl_pending_transfer() argument
5608 for (tag = 0; tag < hba->nutrs; tag++) { in ufshcd_mcq_compl_pending_transfer()
5609 lrbp = &hba->lrb[tag]; in ufshcd_mcq_compl_pending_transfer()
5610 cmd = lrbp->cmd; in ufshcd_mcq_compl_pending_transfer()
5612 test_bit(SCMD_STATE_COMPLETE, &cmd->state)) in ufshcd_mcq_compl_pending_transfer()
5617 hwq = &hba->uhq[hwq_num]; in ufshcd_mcq_compl_pending_transfer()
5620 ufshcd_mcq_compl_all_cqes_lock(hba, hwq); in ufshcd_mcq_compl_pending_transfer()
5625 spin_lock_irqsave(&hwq->cq_lock, flags); in ufshcd_mcq_compl_pending_transfer()
5626 if (cmd && !test_bit(SCMD_STATE_COMPLETE, &cmd->state)) { in ufshcd_mcq_compl_pending_transfer()
5628 ufshcd_release_scsi_cmd(hba, lrbp); in ufshcd_mcq_compl_pending_transfer()
5631 spin_unlock_irqrestore(&hwq->cq_lock, flags); in ufshcd_mcq_compl_pending_transfer()
5633 ufshcd_mcq_poll_cqe_lock(hba, hwq); in ufshcd_mcq_compl_pending_transfer()
5639 * ufshcd_transfer_req_compl - handle SCSI and query command completion
5640 * @hba: per adapter instance
5643 * IRQ_HANDLED - If interrupt is valid
5644 * IRQ_NONE - If invalid interrupt
5646 static irqreturn_t ufshcd_transfer_req_compl(struct ufs_hba *hba) in ufshcd_transfer_req_compl() argument
5655 if (ufshcd_is_intr_aggr_allowed(hba) && in ufshcd_transfer_req_compl()
5656 !(hba->quirks & UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR)) in ufshcd_transfer_req_compl()
5657 ufshcd_reset_intr_aggr(hba); in ufshcd_transfer_req_compl()
5659 if (ufs_fail_completion(hba)) in ufshcd_transfer_req_compl()
5666 ufshcd_poll(hba->host, UFSHCD_POLL_FROM_INTERRUPT_CONTEXT); in ufshcd_transfer_req_compl()
5671 int __ufshcd_write_ee_control(struct ufs_hba *hba, u32 ee_ctrl_mask) in __ufshcd_write_ee_control() argument
5673 return ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_WRITE_ATTR, in __ufshcd_write_ee_control()
5678 int ufshcd_write_ee_control(struct ufs_hba *hba) in ufshcd_write_ee_control() argument
5682 mutex_lock(&hba->ee_ctrl_mutex); in ufshcd_write_ee_control()
5683 err = __ufshcd_write_ee_control(hba, hba->ee_ctrl_mask); in ufshcd_write_ee_control()
5684 mutex_unlock(&hba->ee_ctrl_mutex); in ufshcd_write_ee_control()
5686 dev_err(hba->dev, "%s: failed to write ee control %d\n", in ufshcd_write_ee_control()
5691 int ufshcd_update_ee_control(struct ufs_hba *hba, u16 *mask, in ufshcd_update_ee_control() argument
5697 mutex_lock(&hba->ee_ctrl_mutex); in ufshcd_update_ee_control()
5700 if (ee_ctrl_mask != hba->ee_ctrl_mask) in ufshcd_update_ee_control()
5701 err = __ufshcd_write_ee_control(hba, ee_ctrl_mask); in ufshcd_update_ee_control()
5704 hba->ee_ctrl_mask = ee_ctrl_mask; in ufshcd_update_ee_control()
5707 mutex_unlock(&hba->ee_ctrl_mutex); in ufshcd_update_ee_control()
5712 * ufshcd_disable_ee - disable exception event
5713 * @hba: per-adapter instance
5719 * Return: zero on success, non-zero error value on failure.
5721 static inline int ufshcd_disable_ee(struct ufs_hba *hba, u16 mask) in ufshcd_disable_ee() argument
5723 return ufshcd_update_ee_drv_mask(hba, 0, mask); in ufshcd_disable_ee()
5727 * ufshcd_enable_ee - enable exception event
5728 * @hba: per-adapter instance
5734 * Return: zero on success, non-zero error value on failure.
5736 static inline int ufshcd_enable_ee(struct ufs_hba *hba, u16 mask) in ufshcd_enable_ee() argument
5738 return ufshcd_update_ee_drv_mask(hba, mask, 0); in ufshcd_enable_ee()
5742 * ufshcd_enable_auto_bkops - Allow device managed BKOPS
5743 * @hba: per-adapter instance
5750 * Return: zero on success, non-zero on failure.
5752 static int ufshcd_enable_auto_bkops(struct ufs_hba *hba) in ufshcd_enable_auto_bkops() argument
5756 if (hba->auto_bkops_enabled) in ufshcd_enable_auto_bkops()
5759 err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_SET_FLAG, in ufshcd_enable_auto_bkops()
5762 dev_err(hba->dev, "%s: failed to enable bkops %d\n", in ufshcd_enable_auto_bkops()
5767 hba->auto_bkops_enabled = true; in ufshcd_enable_auto_bkops()
5768 trace_ufshcd_auto_bkops_state(dev_name(hba->dev), "Enabled"); in ufshcd_enable_auto_bkops()
5771 err = ufshcd_disable_ee(hba, MASK_EE_URGENT_BKOPS); in ufshcd_enable_auto_bkops()
5773 dev_err(hba->dev, "%s: failed to disable exception event %d\n", in ufshcd_enable_auto_bkops()
5780 * ufshcd_disable_auto_bkops - block device in doing background operations
5781 * @hba: per-adapter instance
5785 * not-operable. Make sure to call ufshcd_enable_auto_bkops() whenever the
5789 * Return: zero on success, non-zero on failure.
5791 static int ufshcd_disable_auto_bkops(struct ufs_hba *hba) in ufshcd_disable_auto_bkops() argument
5795 if (!hba->auto_bkops_enabled) in ufshcd_disable_auto_bkops()
5802 err = ufshcd_enable_ee(hba, MASK_EE_URGENT_BKOPS); in ufshcd_disable_auto_bkops()
5804 dev_err(hba->dev, "%s: failed to enable exception event %d\n", in ufshcd_disable_auto_bkops()
5809 err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_CLEAR_FLAG, in ufshcd_disable_auto_bkops()
5812 dev_err(hba->dev, "%s: failed to disable bkops %d\n", in ufshcd_disable_auto_bkops()
5814 ufshcd_disable_ee(hba, MASK_EE_URGENT_BKOPS); in ufshcd_disable_auto_bkops()
5818 hba->auto_bkops_enabled = false; in ufshcd_disable_auto_bkops()
5819 trace_ufshcd_auto_bkops_state(dev_name(hba->dev), "Disabled"); in ufshcd_disable_auto_bkops()
5820 hba->is_urgent_bkops_lvl_checked = false; in ufshcd_disable_auto_bkops()
5826 * ufshcd_force_reset_auto_bkops - force reset auto bkops state
5827 * @hba: per adapter instance
5831 * as well. This function would change the auto-bkops state based on
5834 static void ufshcd_force_reset_auto_bkops(struct ufs_hba *hba) in ufshcd_force_reset_auto_bkops() argument
5836 if (ufshcd_keep_autobkops_enabled_except_suspend(hba)) { in ufshcd_force_reset_auto_bkops()
5837 hba->auto_bkops_enabled = false; in ufshcd_force_reset_auto_bkops()
5838 hba->ee_ctrl_mask |= MASK_EE_URGENT_BKOPS; in ufshcd_force_reset_auto_bkops()
5839 ufshcd_enable_auto_bkops(hba); in ufshcd_force_reset_auto_bkops()
5841 hba->auto_bkops_enabled = true; in ufshcd_force_reset_auto_bkops()
5842 hba->ee_ctrl_mask &= ~MASK_EE_URGENT_BKOPS; in ufshcd_force_reset_auto_bkops()
5843 ufshcd_disable_auto_bkops(hba); in ufshcd_force_reset_auto_bkops()
5845 hba->urgent_bkops_lvl = BKOPS_STATUS_PERF_IMPACT; in ufshcd_force_reset_auto_bkops()
5846 hba->is_urgent_bkops_lvl_checked = false; in ufshcd_force_reset_auto_bkops()
5849 static inline int ufshcd_get_bkops_status(struct ufs_hba *hba, u32 *status) in ufshcd_get_bkops_status() argument
5851 return ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR, in ufshcd_get_bkops_status()
5856 * ufshcd_bkops_ctrl - control the auto bkops based on current bkops status
5857 * @hba: per-adapter instance
5865 * Return: 0 for success, non-zero in case of failure.
5867 * NOTE: Caller of this function can check the "hba->auto_bkops_enabled" flag
5871 static int ufshcd_bkops_ctrl(struct ufs_hba *hba, in ufshcd_bkops_ctrl() argument
5877 err = ufshcd_get_bkops_status(hba, &curr_status); in ufshcd_bkops_ctrl()
5879 dev_err(hba->dev, "%s: failed to get BKOPS status %d\n", in ufshcd_bkops_ctrl()
5883 dev_err(hba->dev, "%s: invalid BKOPS status %d\n", in ufshcd_bkops_ctrl()
5885 err = -EINVAL; in ufshcd_bkops_ctrl()
5890 err = ufshcd_enable_auto_bkops(hba); in ufshcd_bkops_ctrl()
5892 err = ufshcd_disable_auto_bkops(hba); in ufshcd_bkops_ctrl()
5898 * ufshcd_urgent_bkops - handle urgent bkops exception event
5899 * @hba: per-adapter instance
5909 static int ufshcd_urgent_bkops(struct ufs_hba *hba) in ufshcd_urgent_bkops() argument
5911 return ufshcd_bkops_ctrl(hba, hba->urgent_bkops_lvl); in ufshcd_urgent_bkops()
5914 static inline int ufshcd_get_ee_status(struct ufs_hba *hba, u32 *status) in ufshcd_get_ee_status() argument
5916 return ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR, in ufshcd_get_ee_status()
5920 static void ufshcd_bkops_exception_event_handler(struct ufs_hba *hba) in ufshcd_bkops_exception_event_handler() argument
5925 if (hba->is_urgent_bkops_lvl_checked) in ufshcd_bkops_exception_event_handler()
5928 err = ufshcd_get_bkops_status(hba, &curr_status); in ufshcd_bkops_exception_event_handler()
5930 dev_err(hba->dev, "%s: failed to get BKOPS status %d\n", in ufshcd_bkops_exception_event_handler()
5942 dev_err(hba->dev, "%s: device raised urgent BKOPS exception for bkops status %d\n", in ufshcd_bkops_exception_event_handler()
5945 hba->urgent_bkops_lvl = curr_status; in ufshcd_bkops_exception_event_handler()
5946 hba->is_urgent_bkops_lvl_checked = true; in ufshcd_bkops_exception_event_handler()
5950 err = ufshcd_enable_auto_bkops(hba); in ufshcd_bkops_exception_event_handler()
5953 dev_err(hba->dev, "%s: failed to handle urgent bkops %d\n", in ufshcd_bkops_exception_event_handler()
5957 static void ufshcd_temp_exception_event_handler(struct ufs_hba *hba, u16 status) in ufshcd_temp_exception_event_handler() argument
5961 if (ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR, in ufshcd_temp_exception_event_handler()
5965 dev_info(hba->dev, "exception Tcase %d\n", value - 80); in ufshcd_temp_exception_event_handler()
5967 ufs_hwmon_notify_event(hba, status & MASK_EE_URGENT_TEMP); in ufshcd_temp_exception_event_handler()
5975 static int __ufshcd_wb_toggle(struct ufs_hba *hba, bool set, enum flag_idn idn) in __ufshcd_wb_toggle() argument
5981 index = ufshcd_wb_get_query_index(hba); in __ufshcd_wb_toggle()
5982 return ufshcd_query_flag_retry(hba, opcode, idn, index, NULL); in __ufshcd_wb_toggle()
5985 int ufshcd_wb_toggle(struct ufs_hba *hba, bool enable) in ufshcd_wb_toggle() argument
5989 if (!ufshcd_is_wb_allowed(hba) || in ufshcd_wb_toggle()
5990 hba->dev_info.wb_enabled == enable) in ufshcd_wb_toggle()
5993 ret = __ufshcd_wb_toggle(hba, enable, QUERY_FLAG_IDN_WB_EN); in ufshcd_wb_toggle()
5995 dev_err(hba->dev, "%s: Write Booster %s failed %d\n", in ufshcd_wb_toggle()
6000 hba->dev_info.wb_enabled = enable; in ufshcd_wb_toggle()
6001 dev_dbg(hba->dev, "%s: Write Booster %s\n", in ufshcd_wb_toggle()
6007 static void ufshcd_wb_toggle_buf_flush_during_h8(struct ufs_hba *hba, in ufshcd_wb_toggle_buf_flush_during_h8() argument
6012 ret = __ufshcd_wb_toggle(hba, enable, in ufshcd_wb_toggle_buf_flush_during_h8()
6015 dev_err(hba->dev, "%s: WB-Buf Flush during H8 %s failed %d\n", in ufshcd_wb_toggle_buf_flush_during_h8()
6019 dev_dbg(hba->dev, "%s: WB-Buf Flush during H8 %s\n", in ufshcd_wb_toggle_buf_flush_during_h8()
6023 int ufshcd_wb_toggle_buf_flush(struct ufs_hba *hba, bool enable) in ufshcd_wb_toggle_buf_flush() argument
6027 if (!ufshcd_is_wb_allowed(hba) || in ufshcd_wb_toggle_buf_flush()
6028 hba->dev_info.wb_buf_flush_enabled == enable) in ufshcd_wb_toggle_buf_flush()
6031 ret = __ufshcd_wb_toggle(hba, enable, QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN); in ufshcd_wb_toggle_buf_flush()
6033 dev_err(hba->dev, "%s: WB-Buf Flush %s failed %d\n", in ufshcd_wb_toggle_buf_flush()
6038 hba->dev_info.wb_buf_flush_enabled = enable; in ufshcd_wb_toggle_buf_flush()
6039 dev_dbg(hba->dev, "%s: WB-Buf Flush %s\n", in ufshcd_wb_toggle_buf_flush()
6045 static bool ufshcd_wb_presrv_usrspc_keep_vcc_on(struct ufs_hba *hba, in ufshcd_wb_presrv_usrspc_keep_vcc_on() argument
6052 index = ufshcd_wb_get_query_index(hba); in ufshcd_wb_presrv_usrspc_keep_vcc_on()
6053 ret = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR, in ufshcd_wb_presrv_usrspc_keep_vcc_on()
6057 dev_err(hba->dev, "%s: dCurWriteBoosterBufferSize read failed %d\n", in ufshcd_wb_presrv_usrspc_keep_vcc_on()
6063 dev_info(hba->dev, "dCurWBBuf: %d WB disabled until free-space is available\n", in ufshcd_wb_presrv_usrspc_keep_vcc_on()
6068 return avail_buf < hba->vps->wb_flush_threshold; in ufshcd_wb_presrv_usrspc_keep_vcc_on()
6071 static void ufshcd_wb_force_disable(struct ufs_hba *hba) in ufshcd_wb_force_disable() argument
6073 if (ufshcd_is_wb_buf_flush_allowed(hba)) in ufshcd_wb_force_disable()
6074 ufshcd_wb_toggle_buf_flush(hba, false); in ufshcd_wb_force_disable()
6076 ufshcd_wb_toggle_buf_flush_during_h8(hba, false); in ufshcd_wb_force_disable()
6077 ufshcd_wb_toggle(hba, false); in ufshcd_wb_force_disable()
6078 hba->caps &= ~UFSHCD_CAP_WB_EN; in ufshcd_wb_force_disable()
6080 dev_info(hba->dev, "%s: WB force disabled\n", __func__); in ufshcd_wb_force_disable()
6083 static bool ufshcd_is_wb_buf_lifetime_available(struct ufs_hba *hba) in ufshcd_is_wb_buf_lifetime_available() argument
6089 index = ufshcd_wb_get_query_index(hba); in ufshcd_is_wb_buf_lifetime_available()
6090 ret = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR, in ufshcd_is_wb_buf_lifetime_available()
6094 dev_err(hba->dev, in ufshcd_is_wb_buf_lifetime_available()
6101 dev_err(hba->dev, "%s: WB buf lifetime is exhausted 0x%02X\n", in ufshcd_is_wb_buf_lifetime_available()
6106 dev_dbg(hba->dev, "%s: WB buf lifetime is 0x%02X\n", in ufshcd_is_wb_buf_lifetime_available()
6112 static bool ufshcd_wb_need_flush(struct ufs_hba *hba) in ufshcd_wb_need_flush() argument
6118 if (!ufshcd_is_wb_allowed(hba)) in ufshcd_wb_need_flush()
6121 if (!ufshcd_is_wb_buf_lifetime_available(hba)) { in ufshcd_wb_need_flush()
6122 ufshcd_wb_force_disable(hba); in ufshcd_wb_need_flush()
6128 * With user-space reduction enabled, it's enough to enable flush in ufshcd_wb_need_flush()
6131 * With user-space preserved enabled, the current-buffer in ufshcd_wb_need_flush()
6137 index = ufshcd_wb_get_query_index(hba); in ufshcd_wb_need_flush()
6138 ret = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR, in ufshcd_wb_need_flush()
6142 dev_warn(hba->dev, "%s: dAvailableWriteBoosterBufferSize read failed %d\n", in ufshcd_wb_need_flush()
6147 if (!hba->dev_info.b_presrv_uspc_en) in ufshcd_wb_need_flush()
6150 return ufshcd_wb_presrv_usrspc_keep_vcc_on(hba, avail_buf); in ufshcd_wb_need_flush()
6155 struct ufs_hba *hba = container_of(to_delayed_work(work), in ufshcd_rpm_dev_flush_recheck_work() local
6164 ufshcd_rpm_get_sync(hba); in ufshcd_rpm_dev_flush_recheck_work()
6165 ufshcd_rpm_put_sync(hba); in ufshcd_rpm_dev_flush_recheck_work()
6169 * ufshcd_exception_event_handler - handle exceptions raised by device
6177 struct ufs_hba *hba; in ufshcd_exception_event_handler() local
6180 hba = container_of(work, struct ufs_hba, eeh_work); in ufshcd_exception_event_handler()
6182 ufshcd_scsi_block_requests(hba); in ufshcd_exception_event_handler()
6183 err = ufshcd_get_ee_status(hba, &status); in ufshcd_exception_event_handler()
6185 dev_err(hba->dev, "%s: failed to get exception status %d\n", in ufshcd_exception_event_handler()
6190 trace_ufshcd_exception_event(dev_name(hba->dev), status); in ufshcd_exception_event_handler()
6192 if (status & hba->ee_drv_mask & MASK_EE_URGENT_BKOPS) in ufshcd_exception_event_handler()
6193 ufshcd_bkops_exception_event_handler(hba); in ufshcd_exception_event_handler()
6195 if (status & hba->ee_drv_mask & MASK_EE_URGENT_TEMP) in ufshcd_exception_event_handler()
6196 ufshcd_temp_exception_event_handler(hba, status); in ufshcd_exception_event_handler()
6198 ufs_debugfs_exception_event(hba, status); in ufshcd_exception_event_handler()
6200 ufshcd_scsi_unblock_requests(hba); in ufshcd_exception_event_handler()
6203 /* Complete requests that have door-bell cleared */
6204 static void ufshcd_complete_requests(struct ufs_hba *hba, bool force_compl) in ufshcd_complete_requests() argument
6206 if (is_mcq_enabled(hba)) in ufshcd_complete_requests()
6207 ufshcd_mcq_compl_pending_transfer(hba, force_compl); in ufshcd_complete_requests()
6209 ufshcd_transfer_req_compl(hba); in ufshcd_complete_requests()
6211 ufshcd_tmc_handler(hba); in ufshcd_complete_requests()
6215 * ufshcd_quirk_dl_nac_errors - This function checks if error handling is
6217 * @hba: per-adapter instance
6221 static bool ufshcd_quirk_dl_nac_errors(struct ufs_hba *hba) in ufshcd_quirk_dl_nac_errors() argument
6226 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6231 if (hba->saved_err & (CONTROLLER_FATAL_ERROR | SYSTEM_BUS_FATAL_ERROR)) in ufshcd_quirk_dl_nac_errors()
6234 if ((hba->saved_err & DEVICE_FATAL_ERROR) || in ufshcd_quirk_dl_nac_errors()
6235 ((hba->saved_err & UIC_ERROR) && in ufshcd_quirk_dl_nac_errors()
6236 (hba->saved_uic_err & UFSHCD_UIC_DL_TCx_REPLAY_ERROR))) in ufshcd_quirk_dl_nac_errors()
6239 if ((hba->saved_err & UIC_ERROR) && in ufshcd_quirk_dl_nac_errors()
6240 (hba->saved_uic_err & UFSHCD_UIC_DL_NAC_RECEIVED_ERROR)) { in ufshcd_quirk_dl_nac_errors()
6245 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6247 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6253 if ((hba->saved_err & INT_FATAL_ERRORS) || in ufshcd_quirk_dl_nac_errors()
6254 ((hba->saved_err & UIC_ERROR) && in ufshcd_quirk_dl_nac_errors()
6255 (hba->saved_uic_err & ~UFSHCD_UIC_DL_NAC_RECEIVED_ERROR))) in ufshcd_quirk_dl_nac_errors()
6261 * - If we don't get any response then do error recovery. in ufshcd_quirk_dl_nac_errors()
6262 * - If we get response then clear the DL NAC error bit. in ufshcd_quirk_dl_nac_errors()
6265 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6266 err = ufshcd_verify_dev_init(hba); in ufshcd_quirk_dl_nac_errors()
6267 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6273 if (hba->saved_uic_err == UFSHCD_UIC_DL_NAC_RECEIVED_ERROR) in ufshcd_quirk_dl_nac_errors()
6274 hba->saved_err &= ~UIC_ERROR; in ufshcd_quirk_dl_nac_errors()
6276 hba->saved_uic_err &= ~UFSHCD_UIC_DL_NAC_RECEIVED_ERROR; in ufshcd_quirk_dl_nac_errors()
6277 if (!hba->saved_uic_err) in ufshcd_quirk_dl_nac_errors()
6281 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_quirk_dl_nac_errors()
6286 static inline bool ufshcd_is_saved_err_fatal(struct ufs_hba *hba) in ufshcd_is_saved_err_fatal() argument
6288 return (hba->saved_uic_err & UFSHCD_UIC_DL_PA_INIT_ERROR) || in ufshcd_is_saved_err_fatal()
6289 (hba->saved_err & (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK)); in ufshcd_is_saved_err_fatal()
6292 void ufshcd_schedule_eh_work(struct ufs_hba *hba) in ufshcd_schedule_eh_work() argument
6294 lockdep_assert_held(hba->host->host_lock); in ufshcd_schedule_eh_work()
6297 if (hba->ufshcd_state != UFSHCD_STATE_ERROR) { in ufshcd_schedule_eh_work()
6298 if (hba->force_reset || ufshcd_is_link_broken(hba) || in ufshcd_schedule_eh_work()
6299 ufshcd_is_saved_err_fatal(hba)) in ufshcd_schedule_eh_work()
6300 hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_FATAL; in ufshcd_schedule_eh_work()
6302 hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_NON_FATAL; in ufshcd_schedule_eh_work()
6303 queue_work(hba->eh_wq, &hba->eh_work); in ufshcd_schedule_eh_work()
6307 static void ufshcd_force_error_recovery(struct ufs_hba *hba) in ufshcd_force_error_recovery() argument
6309 spin_lock_irq(hba->host->host_lock); in ufshcd_force_error_recovery()
6310 hba->force_reset = true; in ufshcd_force_error_recovery()
6311 ufshcd_schedule_eh_work(hba); in ufshcd_force_error_recovery()
6312 spin_unlock_irq(hba->host->host_lock); in ufshcd_force_error_recovery()
6315 static void ufshcd_clk_scaling_allow(struct ufs_hba *hba, bool allow) in ufshcd_clk_scaling_allow() argument
6317 mutex_lock(&hba->wb_mutex); in ufshcd_clk_scaling_allow()
6318 down_write(&hba->clk_scaling_lock); in ufshcd_clk_scaling_allow()
6319 hba->clk_scaling.is_allowed = allow; in ufshcd_clk_scaling_allow()
6320 up_write(&hba->clk_scaling_lock); in ufshcd_clk_scaling_allow()
6321 mutex_unlock(&hba->wb_mutex); in ufshcd_clk_scaling_allow()
6324 static void ufshcd_clk_scaling_suspend(struct ufs_hba *hba, bool suspend) in ufshcd_clk_scaling_suspend() argument
6327 if (hba->clk_scaling.is_enabled) in ufshcd_clk_scaling_suspend()
6328 ufshcd_suspend_clkscaling(hba); in ufshcd_clk_scaling_suspend()
6329 ufshcd_clk_scaling_allow(hba, false); in ufshcd_clk_scaling_suspend()
6331 ufshcd_clk_scaling_allow(hba, true); in ufshcd_clk_scaling_suspend()
6332 if (hba->clk_scaling.is_enabled) in ufshcd_clk_scaling_suspend()
6333 ufshcd_resume_clkscaling(hba); in ufshcd_clk_scaling_suspend()
6337 static void ufshcd_err_handling_prepare(struct ufs_hba *hba) in ufshcd_err_handling_prepare() argument
6339 ufshcd_rpm_get_sync(hba); in ufshcd_err_handling_prepare()
6340 if (pm_runtime_status_suspended(&hba->ufs_device_wlun->sdev_gendev) || in ufshcd_err_handling_prepare()
6341 hba->is_sys_suspended) { in ufshcd_err_handling_prepare()
6349 ufshcd_setup_hba_vreg(hba, true); in ufshcd_err_handling_prepare()
6350 ufshcd_enable_irq(hba); in ufshcd_err_handling_prepare()
6351 ufshcd_setup_vreg(hba, true); in ufshcd_err_handling_prepare()
6352 ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq); in ufshcd_err_handling_prepare()
6353 ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq2); in ufshcd_err_handling_prepare()
6354 ufshcd_hold(hba); in ufshcd_err_handling_prepare()
6355 if (!ufshcd_is_clkgating_allowed(hba)) in ufshcd_err_handling_prepare()
6356 ufshcd_setup_clocks(hba, true); in ufshcd_err_handling_prepare()
6357 pm_op = hba->is_sys_suspended ? UFS_SYSTEM_PM : UFS_RUNTIME_PM; in ufshcd_err_handling_prepare()
6358 ufshcd_vops_resume(hba, pm_op); in ufshcd_err_handling_prepare()
6360 ufshcd_hold(hba); in ufshcd_err_handling_prepare()
6361 if (ufshcd_is_clkscaling_supported(hba) && in ufshcd_err_handling_prepare()
6362 hba->clk_scaling.is_enabled) in ufshcd_err_handling_prepare()
6363 ufshcd_suspend_clkscaling(hba); in ufshcd_err_handling_prepare()
6364 ufshcd_clk_scaling_allow(hba, false); in ufshcd_err_handling_prepare()
6366 ufshcd_scsi_block_requests(hba); in ufshcd_err_handling_prepare()
6368 blk_mq_wait_quiesce_done(&hba->host->tag_set); in ufshcd_err_handling_prepare()
6369 cancel_work_sync(&hba->eeh_work); in ufshcd_err_handling_prepare()
6372 static void ufshcd_err_handling_unprepare(struct ufs_hba *hba) in ufshcd_err_handling_unprepare() argument
6374 ufshcd_scsi_unblock_requests(hba); in ufshcd_err_handling_unprepare()
6375 ufshcd_release(hba); in ufshcd_err_handling_unprepare()
6376 if (ufshcd_is_clkscaling_supported(hba)) in ufshcd_err_handling_unprepare()
6377 ufshcd_clk_scaling_suspend(hba, false); in ufshcd_err_handling_unprepare()
6378 ufshcd_rpm_put(hba); in ufshcd_err_handling_unprepare()
6381 static inline bool ufshcd_err_handling_should_stop(struct ufs_hba *hba) in ufshcd_err_handling_should_stop() argument
6383 return (!hba->is_powered || hba->shutting_down || in ufshcd_err_handling_should_stop()
6384 !hba->ufs_device_wlun || in ufshcd_err_handling_should_stop()
6385 hba->ufshcd_state == UFSHCD_STATE_ERROR || in ufshcd_err_handling_should_stop()
6386 (!(hba->saved_err || hba->saved_uic_err || hba->force_reset || in ufshcd_err_handling_should_stop()
6387 ufshcd_is_link_broken(hba)))); in ufshcd_err_handling_should_stop()
6391 static void ufshcd_recover_pm_error(struct ufs_hba *hba) in ufshcd_recover_pm_error() argument
6393 struct Scsi_Host *shost = hba->host; in ufshcd_recover_pm_error()
6398 hba->is_sys_suspended = false; in ufshcd_recover_pm_error()
6403 ret = pm_runtime_set_active(&hba->ufs_device_wlun->sdev_gendev); in ufshcd_recover_pm_error()
6405 /* hba device might have a runtime error otherwise */ in ufshcd_recover_pm_error()
6407 ret = pm_runtime_set_active(hba->dev); in ufshcd_recover_pm_error()
6416 q = sdev->request_queue; in ufshcd_recover_pm_error()
6417 if (q->dev && (q->rpm_status == RPM_SUSPENDED || in ufshcd_recover_pm_error()
6418 q->rpm_status == RPM_SUSPENDING)) in ufshcd_recover_pm_error()
6419 pm_request_resume(q->dev); in ufshcd_recover_pm_error()
6424 static inline void ufshcd_recover_pm_error(struct ufs_hba *hba) in ufshcd_recover_pm_error() argument
6429 static bool ufshcd_is_pwr_mode_restore_needed(struct ufs_hba *hba) in ufshcd_is_pwr_mode_restore_needed() argument
6431 struct ufs_pa_layer_attr *pwr_info = &hba->pwr_info; in ufshcd_is_pwr_mode_restore_needed()
6434 ufshcd_dme_get(hba, UIC_ARG_MIB(PA_PWRMODE), &mode); in ufshcd_is_pwr_mode_restore_needed()
6436 if (pwr_info->pwr_rx != ((mode >> PWRMODE_RX_OFFSET) & PWRMODE_MASK)) in ufshcd_is_pwr_mode_restore_needed()
6439 if (pwr_info->pwr_tx != (mode & PWRMODE_MASK)) in ufshcd_is_pwr_mode_restore_needed()
6448 u32 tag = rq->tag; in ufshcd_abort_one()
6450 struct scsi_device *sdev = cmd->device; in ufshcd_abort_one()
6451 struct Scsi_Host *shost = sdev->host; in ufshcd_abort_one()
6452 struct ufs_hba *hba = shost_priv(shost); in ufshcd_abort_one() local
6453 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_abort_one()
6457 *ret = ufshcd_try_to_abort_task(hba, tag); 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()
6463 if (is_mcq_enabled(hba) && (*ret == 0)) { in ufshcd_abort_one()
6464 hwq = ufshcd_mcq_req_to_hwq(hba, scsi_cmd_to_rq(lrbp->cmd)); in ufshcd_abort_one()
6465 spin_lock_irqsave(&hwq->cq_lock, flags); in ufshcd_abort_one()
6466 if (ufshcd_cmd_inflight(lrbp->cmd)) in ufshcd_abort_one()
6467 ufshcd_release_scsi_cmd(hba, lrbp); in ufshcd_abort_one()
6468 spin_unlock_irqrestore(&hwq->cq_lock, flags); in ufshcd_abort_one()
6475 * ufshcd_abort_all - Abort all pending commands.
6476 * @hba: Host bus adapter pointer.
6480 static bool ufshcd_abort_all(struct ufs_hba *hba) in ufshcd_abort_all() argument
6484 blk_mq_tagset_busy_iter(&hba->host->tag_set, ufshcd_abort_one, &ret); in ufshcd_abort_all()
6489 for_each_set_bit(tag, &hba->outstanding_tasks, hba->nutmrs) { in ufshcd_abort_all()
6490 ret = ufshcd_clear_tm_cmd(hba, tag); in ufshcd_abort_all()
6497 ufshcd_complete_requests(hba, false); in ufshcd_abort_all()
6503 * ufshcd_err_handler - handle UFS errors that require s/w attention
6509 struct ufs_hba *hba; in ufshcd_err_handler() local
6515 hba = container_of(work, struct ufs_hba, eh_work); in ufshcd_err_handler()
6517 dev_info(hba->dev, in ufshcd_err_handler()
6518 …"%s started; HBA state %s; powered %d; shutting down %d; saved_err = %d; saved_uic_err = %d; force… in ufshcd_err_handler()
6519 __func__, ufshcd_state_name[hba->ufshcd_state], in ufshcd_err_handler()
6520 hba->is_powered, hba->shutting_down, hba->saved_err, in ufshcd_err_handler()
6521 hba->saved_uic_err, hba->force_reset, in ufshcd_err_handler()
6522 ufshcd_is_link_broken(hba) ? "; link is broken" : ""); in ufshcd_err_handler()
6524 down(&hba->host_sem); in ufshcd_err_handler()
6525 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6526 if (ufshcd_err_handling_should_stop(hba)) { in ufshcd_err_handler()
6527 if (hba->ufshcd_state != UFSHCD_STATE_ERROR) in ufshcd_err_handler()
6528 hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; in ufshcd_err_handler()
6529 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6530 up(&hba->host_sem); in ufshcd_err_handler()
6533 ufshcd_set_eh_in_progress(hba); in ufshcd_err_handler()
6534 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6535 ufshcd_err_handling_prepare(hba); in ufshcd_err_handler()
6536 /* Complete requests that have door-bell cleared by h/w */ in ufshcd_err_handler()
6537 ufshcd_complete_requests(hba, false); in ufshcd_err_handler()
6538 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6543 if (hba->ufshcd_state != UFSHCD_STATE_ERROR) in ufshcd_err_handler()
6544 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_err_handler()
6549 if (ufshcd_err_handling_should_stop(hba)) in ufshcd_err_handler()
6552 if (hba->dev_quirks & UFS_DEVICE_QUIRK_RECOVERY_FROM_DL_NAC_ERRORS) { in ufshcd_err_handler()
6555 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6557 ret = ufshcd_quirk_dl_nac_errors(hba); in ufshcd_err_handler()
6558 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6559 if (!ret && ufshcd_err_handling_should_stop(hba)) in ufshcd_err_handler()
6563 if ((hba->saved_err & (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK)) || in ufshcd_err_handler()
6564 (hba->saved_uic_err && in ufshcd_err_handler()
6565 (hba->saved_uic_err != UFSHCD_UIC_PA_GENERIC_ERROR))) { in ufshcd_err_handler()
6566 bool pr_prdt = !!(hba->saved_err & SYSTEM_BUS_FATAL_ERROR); in ufshcd_err_handler()
6568 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6569 ufshcd_print_host_state(hba); in ufshcd_err_handler()
6570 ufshcd_print_pwr_info(hba); in ufshcd_err_handler()
6571 ufshcd_print_evt_hist(hba); in ufshcd_err_handler()
6572 ufshcd_print_tmrs(hba, hba->outstanding_tasks); in ufshcd_err_handler()
6573 ufshcd_print_trs_all(hba, pr_prdt); in ufshcd_err_handler()
6574 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6582 if (hba->force_reset || ufshcd_is_link_broken(hba) || in ufshcd_err_handler()
6583 ufshcd_is_saved_err_fatal(hba) || in ufshcd_err_handler()
6584 ((hba->saved_err & UIC_ERROR) && in ufshcd_err_handler()
6585 (hba->saved_uic_err & (UFSHCD_UIC_DL_NAC_RECEIVED_ERROR | in ufshcd_err_handler()
6595 if (hba->saved_uic_err & UFSHCD_UIC_PA_GENERIC_ERROR) { in ufshcd_err_handler()
6596 hba->saved_uic_err &= ~UFSHCD_UIC_PA_GENERIC_ERROR; in ufshcd_err_handler()
6597 if (!hba->saved_uic_err) in ufshcd_err_handler()
6598 hba->saved_err &= ~UIC_ERROR; in ufshcd_err_handler()
6599 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6600 if (ufshcd_is_pwr_mode_restore_needed(hba)) in ufshcd_err_handler()
6602 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6603 if (!hba->saved_err && !needs_restore) in ufshcd_err_handler()
6607 hba->silence_err_logs = true; in ufshcd_err_handler()
6609 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6611 needs_reset = ufshcd_abort_all(hba); in ufshcd_err_handler()
6613 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6614 hba->silence_err_logs = false; in ufshcd_err_handler()
6623 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6628 down_write(&hba->clk_scaling_lock); in ufshcd_err_handler()
6629 hba->force_pmc = true; in ufshcd_err_handler()
6630 pmc_err = ufshcd_config_pwr_mode(hba, &(hba->pwr_info)); in ufshcd_err_handler()
6633 dev_err(hba->dev, "%s: Failed to restore power mode, err = %d\n", in ufshcd_err_handler()
6636 hba->force_pmc = false; in ufshcd_err_handler()
6637 ufshcd_print_pwr_info(hba); in ufshcd_err_handler()
6638 up_write(&hba->clk_scaling_lock); in ufshcd_err_handler()
6639 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6647 hba->force_reset = false; in ufshcd_err_handler()
6648 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6649 err = ufshcd_reset_and_restore(hba); in ufshcd_err_handler()
6651 dev_err(hba->dev, "%s: reset and restore failed with err %d\n", in ufshcd_err_handler()
6654 ufshcd_recover_pm_error(hba); in ufshcd_err_handler()
6655 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_err_handler()
6660 if (hba->ufshcd_state == UFSHCD_STATE_RESET) in ufshcd_err_handler()
6661 hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; in ufshcd_err_handler()
6662 if (hba->saved_err || hba->saved_uic_err) in ufshcd_err_handler()
6663 dev_err_ratelimited(hba->dev, "%s: exit: saved_err 0x%x saved_uic_err 0x%x", in ufshcd_err_handler()
6664 __func__, hba->saved_err, hba->saved_uic_err); in ufshcd_err_handler()
6667 if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL && in ufshcd_err_handler()
6668 hba->ufshcd_state != UFSHCD_STATE_ERROR) { in ufshcd_err_handler()
6669 if (--retries) in ufshcd_err_handler()
6671 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_err_handler()
6673 ufshcd_clear_eh_in_progress(hba); in ufshcd_err_handler()
6674 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_err_handler()
6675 ufshcd_err_handling_unprepare(hba); in ufshcd_err_handler()
6676 up(&hba->host_sem); in ufshcd_err_handler()
6678 dev_info(hba->dev, "%s finished; HBA state %s\n", __func__, in ufshcd_err_handler()
6679 ufshcd_state_name[hba->ufshcd_state]); in ufshcd_err_handler()
6683 * ufshcd_update_uic_error - check and set fatal UIC error flags.
6684 * @hba: per-adapter instance
6687 * IRQ_HANDLED - If interrupt is valid
6688 * IRQ_NONE - If invalid interrupt
6690 static irqreturn_t ufshcd_update_uic_error(struct ufs_hba *hba) in ufshcd_update_uic_error() argument
6696 reg = ufshcd_readl(hba, REG_UIC_ERROR_CODE_PHY_ADAPTER_LAYER); in ufshcd_update_uic_error()
6699 ufshcd_update_evt_hist(hba, UFS_EVT_PA_ERR, reg); in ufshcd_update_uic_error()
6705 dev_dbg(hba->dev, "%s: UIC Lane error reported\n", in ufshcd_update_uic_error()
6712 hba->uic_error |= UFSHCD_UIC_PA_GENERIC_ERROR; in ufshcd_update_uic_error()
6713 if (hba->uic_async_done && hba->active_uic_cmd) in ufshcd_update_uic_error()
6714 cmd = hba->active_uic_cmd; in ufshcd_update_uic_error()
6719 if (cmd && (cmd->command == UIC_CMD_DME_SET)) in ufshcd_update_uic_error()
6720 hba->uic_error &= ~UFSHCD_UIC_PA_GENERIC_ERROR; in ufshcd_update_uic_error()
6726 reg = ufshcd_readl(hba, REG_UIC_ERROR_CODE_DATA_LINK_LAYER); in ufshcd_update_uic_error()
6729 ufshcd_update_evt_hist(hba, UFS_EVT_DL_ERR, reg); in ufshcd_update_uic_error()
6732 hba->uic_error |= UFSHCD_UIC_DL_PA_INIT_ERROR; in ufshcd_update_uic_error()
6733 else if (hba->dev_quirks & in ufshcd_update_uic_error()
6736 hba->uic_error |= in ufshcd_update_uic_error()
6739 hba->uic_error |= UFSHCD_UIC_DL_TCx_REPLAY_ERROR; in ufshcd_update_uic_error()
6745 reg = ufshcd_readl(hba, REG_UIC_ERROR_CODE_NETWORK_LAYER); in ufshcd_update_uic_error()
6748 ufshcd_update_evt_hist(hba, UFS_EVT_NL_ERR, reg); in ufshcd_update_uic_error()
6749 hba->uic_error |= UFSHCD_UIC_NL_ERROR; in ufshcd_update_uic_error()
6753 reg = ufshcd_readl(hba, REG_UIC_ERROR_CODE_TRANSPORT_LAYER); in ufshcd_update_uic_error()
6756 ufshcd_update_evt_hist(hba, UFS_EVT_TL_ERR, reg); in ufshcd_update_uic_error()
6757 hba->uic_error |= UFSHCD_UIC_TL_ERROR; in ufshcd_update_uic_error()
6761 reg = ufshcd_readl(hba, REG_UIC_ERROR_CODE_DME); in ufshcd_update_uic_error()
6764 ufshcd_update_evt_hist(hba, UFS_EVT_DME_ERR, reg); in ufshcd_update_uic_error()
6765 hba->uic_error |= UFSHCD_UIC_DME_ERROR; in ufshcd_update_uic_error()
6769 dev_dbg(hba->dev, "%s: UIC error flags = 0x%08x\n", in ufshcd_update_uic_error()
6770 __func__, hba->uic_error); in ufshcd_update_uic_error()
6775 * ufshcd_check_errors - Check for errors that need s/w attention
6776 * @hba: per-adapter instance
6780 * IRQ_HANDLED - If interrupt is valid
6781 * IRQ_NONE - If invalid interrupt
6783 static irqreturn_t ufshcd_check_errors(struct ufs_hba *hba, u32 intr_status) in ufshcd_check_errors() argument
6788 spin_lock(hba->host->host_lock); in ufshcd_check_errors()
6789 hba->errors |= UFSHCD_ERROR_MASK & intr_status; in ufshcd_check_errors()
6791 if (hba->errors & INT_FATAL_ERRORS) { in ufshcd_check_errors()
6792 ufshcd_update_evt_hist(hba, UFS_EVT_FATAL_ERR, in ufshcd_check_errors()
6793 hba->errors); in ufshcd_check_errors()
6797 if (hba->errors & UIC_ERROR) { in ufshcd_check_errors()
6798 hba->uic_error = 0; in ufshcd_check_errors()
6799 retval = ufshcd_update_uic_error(hba); in ufshcd_check_errors()
6800 if (hba->uic_error) in ufshcd_check_errors()
6804 if (hba->errors & UFSHCD_UIC_HIBERN8_MASK) { in ufshcd_check_errors()
6805 dev_err(hba->dev, in ufshcd_check_errors()
6806 "%s: Auto Hibern8 %s failed - status: 0x%08x, upmcrs: 0x%08x\n", in ufshcd_check_errors()
6807 __func__, (hba->errors & UIC_HIBERNATE_ENTER) ? in ufshcd_check_errors()
6809 hba->errors, ufshcd_get_upmcrs(hba)); in ufshcd_check_errors()
6810 ufshcd_update_evt_hist(hba, UFS_EVT_AUTO_HIBERN8_ERR, in ufshcd_check_errors()
6811 hba->errors); in ufshcd_check_errors()
6812 ufshcd_set_link_broken(hba); in ufshcd_check_errors()
6821 hba->saved_err |= hba->errors; in ufshcd_check_errors()
6822 hba->saved_uic_err |= hba->uic_error; in ufshcd_check_errors()
6825 if ((hba->saved_err & in ufshcd_check_errors()
6827 (hba->saved_uic_err && in ufshcd_check_errors()
6828 (hba->saved_uic_err != UFSHCD_UIC_PA_GENERIC_ERROR))) { in ufshcd_check_errors()
6829 dev_err(hba->dev, "%s: saved_err 0x%x saved_uic_err 0x%x\n", in ufshcd_check_errors()
6830 __func__, hba->saved_err, in ufshcd_check_errors()
6831 hba->saved_uic_err); in ufshcd_check_errors()
6832 ufshcd_dump_regs(hba, 0, UFSHCI_REG_SPACE_SIZE, in ufshcd_check_errors()
6834 ufshcd_print_pwr_info(hba); in ufshcd_check_errors()
6836 ufshcd_schedule_eh_work(hba); in ufshcd_check_errors()
6840 * if (!queue_eh_work) - in ufshcd_check_errors()
6841 * Other errors are either non-fatal where host recovers in ufshcd_check_errors()
6845 hba->errors = 0; in ufshcd_check_errors()
6846 hba->uic_error = 0; in ufshcd_check_errors()
6847 spin_unlock(hba->host->host_lock); in ufshcd_check_errors()
6852 * ufshcd_tmc_handler - handle task management function completion
6853 * @hba: per adapter instance
6856 * IRQ_HANDLED - If interrupt is valid
6857 * IRQ_NONE - If invalid interrupt
6859 static irqreturn_t ufshcd_tmc_handler(struct ufs_hba *hba) in ufshcd_tmc_handler() argument
6865 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_tmc_handler()
6866 pending = ufshcd_readl(hba, REG_UTP_TASK_REQ_DOOR_BELL); in ufshcd_tmc_handler()
6867 issued = hba->outstanding_tasks & ~pending; in ufshcd_tmc_handler()
6868 for_each_set_bit(tag, &issued, hba->nutmrs) { in ufshcd_tmc_handler()
6869 struct request *req = hba->tmf_rqs[tag]; in ufshcd_tmc_handler()
6870 struct completion *c = req->end_io_data; in ufshcd_tmc_handler()
6875 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_tmc_handler()
6881 * ufshcd_handle_mcq_cq_events - handle MCQ completion queue events
6882 * @hba: per adapter instance
6886 static irqreturn_t ufshcd_handle_mcq_cq_events(struct ufs_hba *hba) in ufshcd_handle_mcq_cq_events() argument
6894 ret = ufshcd_vops_get_outstanding_cqs(hba, &outstanding_cqs); in ufshcd_handle_mcq_cq_events()
6896 outstanding_cqs = (1U << hba->nr_hw_queues) - 1; in ufshcd_handle_mcq_cq_events()
6899 nr_queues = hba->nr_hw_queues - hba->nr_queues[HCTX_TYPE_POLL]; in ufshcd_handle_mcq_cq_events()
6901 hwq = &hba->uhq[i]; in ufshcd_handle_mcq_cq_events()
6903 events = ufshcd_mcq_read_cqis(hba, i); in ufshcd_handle_mcq_cq_events()
6905 ufshcd_mcq_write_cqis(hba, events, i); in ufshcd_handle_mcq_cq_events()
6908 ufshcd_mcq_poll_cqe_lock(hba, hwq); in ufshcd_handle_mcq_cq_events()
6915 * ufshcd_sl_intr - Interrupt service routine
6916 * @hba: per adapter instance
6920 * IRQ_HANDLED - If interrupt is valid
6921 * IRQ_NONE - If invalid interrupt
6923 static irqreturn_t ufshcd_sl_intr(struct ufs_hba *hba, u32 intr_status) in ufshcd_sl_intr() argument
6928 retval |= ufshcd_uic_cmd_compl(hba, intr_status); in ufshcd_sl_intr()
6930 if (intr_status & UFSHCD_ERROR_MASK || hba->errors) in ufshcd_sl_intr()
6931 retval |= ufshcd_check_errors(hba, intr_status); in ufshcd_sl_intr()
6934 retval |= ufshcd_tmc_handler(hba); in ufshcd_sl_intr()
6937 retval |= ufshcd_transfer_req_compl(hba); in ufshcd_sl_intr()
6940 retval |= ufshcd_handle_mcq_cq_events(hba); in ufshcd_sl_intr()
6946 * ufshcd_intr - Main interrupt service routine
6951 * IRQ_HANDLED - If interrupt is valid
6952 * IRQ_NONE - If invalid interrupt
6958 struct ufs_hba *hba = __hba; in ufshcd_intr() local
6959 int retries = hba->nutrs; in ufshcd_intr()
6961 intr_status = ufshcd_readl(hba, REG_INTERRUPT_STATUS); in ufshcd_intr()
6962 hba->ufs_stats.last_intr_status = intr_status; in ufshcd_intr()
6963 hba->ufs_stats.last_intr_ts = local_clock(); in ufshcd_intr()
6966 * There could be max of hba->nutrs reqs in flight and in worst case in ufshcd_intr()
6971 while (intr_status && retries--) { in ufshcd_intr()
6973 intr_status & ufshcd_readl(hba, REG_INTERRUPT_ENABLE); in ufshcd_intr()
6974 ufshcd_writel(hba, intr_status, REG_INTERRUPT_STATUS); in ufshcd_intr()
6976 retval |= ufshcd_sl_intr(hba, enabled_intr_status); in ufshcd_intr()
6978 intr_status = ufshcd_readl(hba, REG_INTERRUPT_STATUS); in ufshcd_intr()
6983 hba->outstanding_reqs) && !ufshcd_eh_in_progress(hba)) { in ufshcd_intr()
6984 dev_err(hba->dev, "%s: Unhandled interrupt 0x%08x (0x%08x, 0x%08x)\n", in ufshcd_intr()
6987 hba->ufs_stats.last_intr_status, in ufshcd_intr()
6989 ufshcd_dump_regs(hba, 0, UFSHCI_REG_SPACE_SIZE, "host_regs: "); in ufshcd_intr()
6995 static int ufshcd_clear_tm_cmd(struct ufs_hba *hba, int tag) in ufshcd_clear_tm_cmd() argument
7001 if (!test_bit(tag, &hba->outstanding_tasks)) in ufshcd_clear_tm_cmd()
7004 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_clear_tm_cmd()
7005 ufshcd_utmrl_clear(hba, tag); in ufshcd_clear_tm_cmd()
7006 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_clear_tm_cmd()
7009 err = ufshcd_wait_for_register(hba, in ufshcd_clear_tm_cmd()
7013 dev_err(hba->dev, "Clearing task management function with tag %d %s\n", in ufshcd_clear_tm_cmd()
7020 static int __ufshcd_issue_tm_cmd(struct ufs_hba *hba, in __ufshcd_issue_tm_cmd() argument
7023 struct request_queue *q = hba->tmf_queue; in __ufshcd_issue_tm_cmd()
7024 struct Scsi_Host *host = hba->host; in __ufshcd_issue_tm_cmd()
7037 req->end_io_data = &wait; in __ufshcd_issue_tm_cmd()
7038 ufshcd_hold(hba); in __ufshcd_issue_tm_cmd()
7040 spin_lock_irqsave(host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7042 task_tag = req->tag; in __ufshcd_issue_tm_cmd()
7043 hba->tmf_rqs[req->tag] = req; in __ufshcd_issue_tm_cmd()
7044 treq->upiu_req.req_header.task_tag = task_tag; in __ufshcd_issue_tm_cmd()
7046 memcpy(hba->utmrdl_base_addr + task_tag, treq, sizeof(*treq)); in __ufshcd_issue_tm_cmd()
7047 ufshcd_vops_setup_task_mgmt(hba, task_tag, tm_function); in __ufshcd_issue_tm_cmd()
7050 __set_bit(task_tag, &hba->outstanding_tasks); in __ufshcd_issue_tm_cmd()
7052 ufshcd_writel(hba, 1 << task_tag, REG_UTP_TASK_REQ_DOOR_BELL); in __ufshcd_issue_tm_cmd()
7056 spin_unlock_irqrestore(host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7058 ufshcd_add_tm_upiu_trace(hba, task_tag, UFS_TM_SEND); in __ufshcd_issue_tm_cmd()
7064 ufshcd_add_tm_upiu_trace(hba, task_tag, UFS_TM_ERR); in __ufshcd_issue_tm_cmd()
7065 dev_err(hba->dev, "%s: task management cmd 0x%.2x timed-out\n", in __ufshcd_issue_tm_cmd()
7067 if (ufshcd_clear_tm_cmd(hba, task_tag)) in __ufshcd_issue_tm_cmd()
7068 dev_WARN(hba->dev, "%s: unable to clear tm cmd (slot %d) after timeout\n", in __ufshcd_issue_tm_cmd()
7070 err = -ETIMEDOUT; in __ufshcd_issue_tm_cmd()
7073 memcpy(treq, hba->utmrdl_base_addr + task_tag, sizeof(*treq)); in __ufshcd_issue_tm_cmd()
7075 ufshcd_add_tm_upiu_trace(hba, task_tag, UFS_TM_COMP); in __ufshcd_issue_tm_cmd()
7078 spin_lock_irqsave(hba->host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7079 hba->tmf_rqs[req->tag] = NULL; in __ufshcd_issue_tm_cmd()
7080 __clear_bit(task_tag, &hba->outstanding_tasks); in __ufshcd_issue_tm_cmd()
7081 spin_unlock_irqrestore(hba->host->host_lock, flags); in __ufshcd_issue_tm_cmd()
7083 ufshcd_release(hba); in __ufshcd_issue_tm_cmd()
7090 * ufshcd_issue_tm_cmd - issues task management commands to controller
7091 * @hba: per adapter instance
7097 * Return: non-zero value on error, zero on success.
7099 static int ufshcd_issue_tm_cmd(struct ufs_hba *hba, int lun_id, int task_id, in ufshcd_issue_tm_cmd() argument
7122 err = __ufshcd_issue_tm_cmd(hba, &treq, tm_function); in ufshcd_issue_tm_cmd()
7123 if (err == -ETIMEDOUT) in ufshcd_issue_tm_cmd()
7128 dev_err(hba->dev, "%s: failed, ocs = 0x%x\n", in ufshcd_issue_tm_cmd()
7137 * ufshcd_issue_devman_upiu_cmd - API for sending "utrd" type requests
7138 * @hba: per-adapter instance
7146 * Those type of requests uses UTP Transfer Request Descriptor - utrd.
7151 * the caller is expected to hold the hba->dev_cmd.lock mutex.
7155 static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba, in ufshcd_issue_devman_upiu_cmd() argument
7163 const u32 tag = hba->reserved_slot; in ufshcd_issue_devman_upiu_cmd()
7168 /* Protects use of hba->reserved_slot. */ in ufshcd_issue_devman_upiu_cmd()
7169 lockdep_assert_held(&hba->dev_cmd.lock); in ufshcd_issue_devman_upiu_cmd()
7171 down_read(&hba->clk_scaling_lock); in ufshcd_issue_devman_upiu_cmd()
7173 lrbp = &hba->lrb[tag]; in ufshcd_issue_devman_upiu_cmd()
7174 lrbp->cmd = NULL; in ufshcd_issue_devman_upiu_cmd()
7175 lrbp->task_tag = tag; in ufshcd_issue_devman_upiu_cmd()
7176 lrbp->lun = 0; in ufshcd_issue_devman_upiu_cmd()
7177 lrbp->intr_cmd = true; in ufshcd_issue_devman_upiu_cmd()
7179 hba->dev_cmd.type = cmd_type; in ufshcd_issue_devman_upiu_cmd()
7181 if (hba->ufs_version <= ufshci_version(1, 1)) in ufshcd_issue_devman_upiu_cmd()
7182 lrbp->command_type = UTP_CMD_TYPE_DEV_MANAGE; in ufshcd_issue_devman_upiu_cmd()
7184 lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; in ufshcd_issue_devman_upiu_cmd()
7187 req_upiu->header.task_tag = tag; in ufshcd_issue_devman_upiu_cmd()
7192 memcpy(lrbp->ucd_req_ptr, req_upiu, sizeof(*lrbp->ucd_req_ptr)); in ufshcd_issue_devman_upiu_cmd()
7198 memcpy(lrbp->ucd_req_ptr + 1, desc_buff, *buff_len); in ufshcd_issue_devman_upiu_cmd()
7202 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_issue_devman_upiu_cmd()
7204 hba->dev_cmd.complete = &wait; in ufshcd_issue_devman_upiu_cmd()
7206 ufshcd_add_query_upiu_trace(hba, UFS_QUERY_SEND, lrbp->ucd_req_ptr); in ufshcd_issue_devman_upiu_cmd()
7208 ufshcd_send_command(hba, tag, hba->dev_cmd_queue); in ufshcd_issue_devman_upiu_cmd()
7210 * ignore the returning value here - ufshcd_check_query_response is in ufshcd_issue_devman_upiu_cmd()
7214 ufshcd_wait_for_dev_cmd(hba, lrbp, QUERY_REQ_TIMEOUT); in ufshcd_issue_devman_upiu_cmd()
7217 memcpy(rsp_upiu, lrbp->ucd_rsp_ptr, sizeof(*rsp_upiu)); in ufshcd_issue_devman_upiu_cmd()
7219 u8 *descp = (u8 *)lrbp->ucd_rsp_ptr + sizeof(*rsp_upiu); in ufshcd_issue_devman_upiu_cmd()
7220 u16 resp_len = be16_to_cpu(lrbp->ucd_rsp_ptr->header in ufshcd_issue_devman_upiu_cmd()
7227 dev_warn(hba->dev, in ufshcd_issue_devman_upiu_cmd()
7231 err = -EINVAL; in ufshcd_issue_devman_upiu_cmd()
7234 ufshcd_add_query_upiu_trace(hba, err ? UFS_QUERY_ERR : UFS_QUERY_COMP, in ufshcd_issue_devman_upiu_cmd()
7235 (struct utp_upiu_req *)lrbp->ucd_rsp_ptr); in ufshcd_issue_devman_upiu_cmd()
7237 up_read(&hba->clk_scaling_lock); in ufshcd_issue_devman_upiu_cmd()
7242 * ufshcd_exec_raw_upiu_cmd - API function for sending raw upiu commands
7243 * @hba: per-adapter instance
7245 * @rsp_upiu: upiu reply - only 8 DW as we do not support scsi commands
7258 int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba, in ufshcd_exec_raw_upiu_cmd() argument
7269 u8 tm_f = req_upiu->header.tm_function; in ufshcd_exec_raw_upiu_cmd()
7276 ufshcd_hold(hba); in ufshcd_exec_raw_upiu_cmd()
7277 mutex_lock(&hba->dev_cmd.lock); in ufshcd_exec_raw_upiu_cmd()
7278 err = ufshcd_issue_devman_upiu_cmd(hba, req_upiu, rsp_upiu, in ufshcd_exec_raw_upiu_cmd()
7281 mutex_unlock(&hba->dev_cmd.lock); in ufshcd_exec_raw_upiu_cmd()
7282 ufshcd_release(hba); in ufshcd_exec_raw_upiu_cmd()
7291 err = __ufshcd_issue_tm_cmd(hba, &treq, tm_f); in ufshcd_exec_raw_upiu_cmd()
7292 if (err == -ETIMEDOUT) in ufshcd_exec_raw_upiu_cmd()
7297 dev_err(hba->dev, "%s: failed, ocs = 0x%x\n", __func__, in ufshcd_exec_raw_upiu_cmd()
7306 err = -EINVAL; in ufshcd_exec_raw_upiu_cmd()
7315 * ufshcd_advanced_rpmb_req_handler - handle advanced RPMB request
7316 * @hba: per adapter instance
7325 * Return: zero on success, non-zero on failure.
7327 int ufshcd_advanced_rpmb_req_handler(struct ufs_hba *hba, struct utp_upiu_req *req_upiu, in ufshcd_advanced_rpmb_req_handler() argument
7333 const u32 tag = hba->reserved_slot; in ufshcd_advanced_rpmb_req_handler()
7341 /* Protects use of hba->reserved_slot. */ in ufshcd_advanced_rpmb_req_handler()
7342 ufshcd_hold(hba); in ufshcd_advanced_rpmb_req_handler()
7343 mutex_lock(&hba->dev_cmd.lock); in ufshcd_advanced_rpmb_req_handler()
7344 down_read(&hba->clk_scaling_lock); in ufshcd_advanced_rpmb_req_handler()
7346 lrbp = &hba->lrb[tag]; in ufshcd_advanced_rpmb_req_handler()
7347 lrbp->cmd = NULL; in ufshcd_advanced_rpmb_req_handler()
7348 lrbp->task_tag = tag; in ufshcd_advanced_rpmb_req_handler()
7349 lrbp->lun = UFS_UPIU_RPMB_WLUN; in ufshcd_advanced_rpmb_req_handler()
7351 lrbp->intr_cmd = true; in ufshcd_advanced_rpmb_req_handler()
7353 hba->dev_cmd.type = DEV_CMD_TYPE_RPMB; in ufshcd_advanced_rpmb_req_handler()
7356 lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; in ufshcd_advanced_rpmb_req_handler()
7363 if (hba->capabilities & MASK_EHSLUTRD_SUPPORTED) in ufshcd_advanced_rpmb_req_handler()
7369 req_upiu->header.task_tag = tag; in ufshcd_advanced_rpmb_req_handler()
7372 memcpy(lrbp->ucd_req_ptr, req_upiu, sizeof(*lrbp->ucd_req_ptr)); in ufshcd_advanced_rpmb_req_handler()
7374 memcpy(lrbp->ucd_req_ptr + 1, req_ehs, sizeof(*req_ehs)); in ufshcd_advanced_rpmb_req_handler()
7377 ufshcd_sgl_to_prdt(hba, lrbp, sg_cnt, sg_list); in ufshcd_advanced_rpmb_req_handler()
7379 memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp)); in ufshcd_advanced_rpmb_req_handler()
7381 hba->dev_cmd.complete = &wait; in ufshcd_advanced_rpmb_req_handler()
7383 ufshcd_send_command(hba, tag, hba->dev_cmd_queue); in ufshcd_advanced_rpmb_req_handler()
7385 err = ufshcd_wait_for_dev_cmd(hba, lrbp, ADVANCED_RPMB_REQ_TIMEOUT); in ufshcd_advanced_rpmb_req_handler()
7389 memcpy(rsp_upiu, lrbp->ucd_rsp_ptr, sizeof(*rsp_upiu)); in ufshcd_advanced_rpmb_req_handler()
7391 result = (lrbp->ucd_rsp_ptr->header.response << 8) | in ufshcd_advanced_rpmb_req_handler()
7392 lrbp->ucd_rsp_ptr->header.status; in ufshcd_advanced_rpmb_req_handler()
7394 ehs_len = lrbp->ucd_rsp_ptr->header.ehs_length; in ufshcd_advanced_rpmb_req_handler()
7405 ehs_data = (u8 *)lrbp->ucd_rsp_ptr + EHS_OFFSET_IN_RESPONSE; in ufshcd_advanced_rpmb_req_handler()
7410 up_read(&hba->clk_scaling_lock); in ufshcd_advanced_rpmb_req_handler()
7411 mutex_unlock(&hba->dev_cmd.lock); in ufshcd_advanced_rpmb_req_handler()
7412 ufshcd_release(hba); in ufshcd_advanced_rpmb_req_handler()
7417 * ufshcd_eh_device_reset_handler() - Reset a single logical unit.
7426 struct ufs_hba *hba; in ufshcd_eh_device_reset_handler() local
7433 host = cmd->device->host; in ufshcd_eh_device_reset_handler()
7434 hba = shost_priv(host); in ufshcd_eh_device_reset_handler()
7436 lun = ufshcd_scsi_to_upiu_lun(cmd->device->lun); in ufshcd_eh_device_reset_handler()
7437 err = ufshcd_issue_tm_cmd(hba, lun, 0, UFS_LOGICAL_RESET, &resp); in ufshcd_eh_device_reset_handler()
7444 if (is_mcq_enabled(hba)) { in ufshcd_eh_device_reset_handler()
7445 for (pos = 0; pos < hba->nutrs; pos++) { in ufshcd_eh_device_reset_handler()
7446 lrbp = &hba->lrb[pos]; in ufshcd_eh_device_reset_handler()
7447 if (ufshcd_cmd_inflight(lrbp->cmd) && in ufshcd_eh_device_reset_handler()
7448 lrbp->lun == lun) { in ufshcd_eh_device_reset_handler()
7449 ufshcd_clear_cmd(hba, pos); in ufshcd_eh_device_reset_handler()
7450 hwq = ufshcd_mcq_req_to_hwq(hba, scsi_cmd_to_rq(lrbp->cmd)); in ufshcd_eh_device_reset_handler()
7451 ufshcd_mcq_poll_cqe_lock(hba, hwq); in ufshcd_eh_device_reset_handler()
7459 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7460 for_each_set_bit(pos, &hba->outstanding_reqs, hba->nutrs) in ufshcd_eh_device_reset_handler()
7461 if (hba->lrb[pos].lun == lun) in ufshcd_eh_device_reset_handler()
7463 hba->outstanding_reqs &= ~pending_reqs; in ufshcd_eh_device_reset_handler()
7464 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7466 for_each_set_bit(pos, &pending_reqs, hba->nutrs) { in ufshcd_eh_device_reset_handler()
7467 if (ufshcd_clear_cmd(hba, pos) < 0) { in ufshcd_eh_device_reset_handler()
7468 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7470 ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL); in ufshcd_eh_device_reset_handler()
7471 hba->outstanding_reqs |= not_cleared; in ufshcd_eh_device_reset_handler()
7473 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_eh_device_reset_handler()
7475 dev_err(hba->dev, "%s: failed to clear request %d\n", in ufshcd_eh_device_reset_handler()
7479 __ufshcd_transfer_req_compl(hba, pending_reqs & ~not_cleared_mask); in ufshcd_eh_device_reset_handler()
7482 hba->req_abort_count = 0; in ufshcd_eh_device_reset_handler()
7483 ufshcd_update_evt_hist(hba, UFS_EVT_DEV_RESET, (u32)err); in ufshcd_eh_device_reset_handler()
7487 dev_err(hba->dev, "%s: failed with err %d\n", __func__, err); in ufshcd_eh_device_reset_handler()
7493 static void ufshcd_set_req_abort_skip(struct ufs_hba *hba, unsigned long bitmap) in ufshcd_set_req_abort_skip() argument
7498 for_each_set_bit(tag, &bitmap, hba->nutrs) { in ufshcd_set_req_abort_skip()
7499 lrbp = &hba->lrb[tag]; in ufshcd_set_req_abort_skip()
7500 lrbp->req_abort_skip = true; in ufshcd_set_req_abort_skip()
7505 * ufshcd_try_to_abort_task - abort a specific task
7506 * @hba: Pointer to adapter instance
7510 * command, and in host controller by clearing the door-bell register. There can
7515 * Return: zero on success, non-zero on failure.
7517 int ufshcd_try_to_abort_task(struct ufs_hba *hba, int tag) in ufshcd_try_to_abort_task() argument
7519 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_try_to_abort_task()
7525 for (poll_cnt = 100; poll_cnt; poll_cnt--) { in ufshcd_try_to_abort_task()
7526 err = ufshcd_issue_tm_cmd(hba, lrbp->lun, lrbp->task_tag, in ufshcd_try_to_abort_task()
7530 dev_err(hba->dev, "%s: cmd pending in the device. tag = %d\n", in ufshcd_try_to_abort_task()
7538 dev_err(hba->dev, "%s: cmd at tag %d not pending in the device.\n", in ufshcd_try_to_abort_task()
7540 if (is_mcq_enabled(hba)) { in ufshcd_try_to_abort_task()
7542 if (ufshcd_cmd_inflight(lrbp->cmd)) { in ufshcd_try_to_abort_task()
7548 dev_err(hba->dev, "%s: cmd at tag=%d is cleared.\n", in ufshcd_try_to_abort_task()
7554 reg = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL); in ufshcd_try_to_abort_task()
7561 dev_err(hba->dev, "%s: cmd at tag %d successfully cleared from DB.\n", in ufshcd_try_to_abort_task()
7565 dev_err(hba->dev, in ufshcd_try_to_abort_task()
7575 err = -EBUSY; in ufshcd_try_to_abort_task()
7579 err = ufshcd_issue_tm_cmd(hba, lrbp->lun, lrbp->task_tag, in ufshcd_try_to_abort_task()
7584 dev_err(hba->dev, "%s: issued. tag = %d, err %d\n", in ufshcd_try_to_abort_task()
7590 err = ufshcd_clear_cmd(hba, tag); in ufshcd_try_to_abort_task()
7592 dev_err(hba->dev, "%s: Failed clearing cmd at tag %d, err %d\n", in ufshcd_try_to_abort_task()
7600 * ufshcd_abort - scsi host template eh_abort_handler callback
7607 struct Scsi_Host *host = cmd->device->host; in ufshcd_abort()
7608 struct ufs_hba *hba = shost_priv(host); in ufshcd_abort() local
7609 int tag = scsi_cmd_to_rq(cmd)->tag; in ufshcd_abort()
7610 struct ufshcd_lrb *lrbp = &hba->lrb[tag]; in ufshcd_abort()
7616 ufshcd_hold(hba); in ufshcd_abort()
7618 if (!is_mcq_enabled(hba)) { in ufshcd_abort()
7619 reg = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL); in ufshcd_abort()
7620 if (!test_bit(tag, &hba->outstanding_reqs)) { in ufshcd_abort()
7622 dev_err(hba->dev, in ufshcd_abort()
7624 __func__, tag, hba->outstanding_reqs, reg); in ufshcd_abort()
7630 dev_info(hba->dev, "%s: Device abort task at tag %d\n", __func__, tag); in ufshcd_abort()
7640 if (!hba->req_abort_count) { in ufshcd_abort()
7641 ufshcd_update_evt_hist(hba, UFS_EVT_ABORT, tag); in ufshcd_abort()
7642 ufshcd_print_evt_hist(hba); in ufshcd_abort()
7643 ufshcd_print_host_state(hba); in ufshcd_abort()
7644 ufshcd_print_pwr_info(hba); in ufshcd_abort()
7645 ufshcd_print_tr(hba, tag, true); in ufshcd_abort()
7647 ufshcd_print_tr(hba, tag, false); in ufshcd_abort()
7649 hba->req_abort_count++; in ufshcd_abort()
7651 if (!is_mcq_enabled(hba) && !(reg & (1 << tag))) { in ufshcd_abort()
7653 dev_err(hba->dev, in ufshcd_abort()
7656 __ufshcd_transfer_req_compl(hba, 1UL << tag); in ufshcd_abort()
7661 * Task abort to the device W-LUN is illegal. When this command in ufshcd_abort()
7665 * the lrb taken by this cmd and re-set it in outstanding_reqs, in ufshcd_abort()
7668 if (lrbp->lun == UFS_UPIU_UFS_DEVICE_WLUN) { in ufshcd_abort()
7669 ufshcd_update_evt_hist(hba, UFS_EVT_ABORT, lrbp->lun); in ufshcd_abort()
7671 spin_lock_irqsave(host->host_lock, flags); in ufshcd_abort()
7672 hba->force_reset = true; in ufshcd_abort()
7673 ufshcd_schedule_eh_work(hba); in ufshcd_abort()
7674 spin_unlock_irqrestore(host->host_lock, flags); in ufshcd_abort()
7678 if (is_mcq_enabled(hba)) { in ufshcd_abort()
7685 if (lrbp->req_abort_skip) { in ufshcd_abort()
7686 dev_err(hba->dev, "%s: skipping abort\n", __func__); in ufshcd_abort()
7687 ufshcd_set_req_abort_skip(hba, hba->outstanding_reqs); in ufshcd_abort()
7691 err = ufshcd_try_to_abort_task(hba, tag); in ufshcd_abort()
7693 dev_err(hba->dev, "%s: failed with err %d\n", __func__, err); in ufshcd_abort()
7694 ufshcd_set_req_abort_skip(hba, hba->outstanding_reqs); in ufshcd_abort()
7703 spin_lock_irqsave(&hba->outstanding_lock, flags); in ufshcd_abort()
7704 outstanding = __test_and_clear_bit(tag, &hba->outstanding_reqs); in ufshcd_abort()
7705 spin_unlock_irqrestore(&hba->outstanding_lock, flags); in ufshcd_abort()
7708 ufshcd_release_scsi_cmd(hba, lrbp); in ufshcd_abort()
7714 ufshcd_release(hba); in ufshcd_abort()
7719 * ufshcd_host_reset_and_restore - reset and restore host controller
7720 * @hba: per-adapter instance
7723 * local and remote (device) Uni-Pro stack and the attributes
7726 * Return: zero on success, non-zero on failure.
7728 static int ufshcd_host_reset_and_restore(struct ufs_hba *hba) in ufshcd_host_reset_and_restore() argument
7736 ufshcd_hba_stop(hba); in ufshcd_host_reset_and_restore()
7737 hba->silence_err_logs = true; in ufshcd_host_reset_and_restore()
7738 ufshcd_complete_requests(hba, true); in ufshcd_host_reset_and_restore()
7739 hba->silence_err_logs = false; in ufshcd_host_reset_and_restore()
7742 ufshcd_scale_clks(hba, ULONG_MAX, true); in ufshcd_host_reset_and_restore()
7744 err = ufshcd_hba_enable(hba); in ufshcd_host_reset_and_restore()
7748 err = ufshcd_probe_hba(hba, false); in ufshcd_host_reset_and_restore()
7751 dev_err(hba->dev, "%s: Host init failed %d\n", __func__, err); in ufshcd_host_reset_and_restore()
7752 ufshcd_update_evt_hist(hba, UFS_EVT_HOST_RESET, (u32)err); in ufshcd_host_reset_and_restore()
7757 * ufshcd_reset_and_restore - reset and re-initialize host/device
7758 * @hba: per-adapter instance
7760 * Reset and recover device, host and re-establish link. This
7763 * Return: zero on success, non-zero on failure.
7765 static int ufshcd_reset_and_restore(struct ufs_hba *hba) in ufshcd_reset_and_restore() argument
7773 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7779 saved_err |= hba->saved_err; in ufshcd_reset_and_restore()
7780 saved_uic_err |= hba->saved_uic_err; in ufshcd_reset_and_restore()
7781 hba->saved_err = 0; in ufshcd_reset_and_restore()
7782 hba->saved_uic_err = 0; in ufshcd_reset_and_restore()
7783 hba->force_reset = false; in ufshcd_reset_and_restore()
7784 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_reset_and_restore()
7785 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7788 ufshcd_device_reset(hba); in ufshcd_reset_and_restore()
7790 err = ufshcd_host_reset_and_restore(hba); in ufshcd_reset_and_restore()
7792 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7796 if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL && in ufshcd_reset_and_restore()
7797 hba->ufshcd_state != UFSHCD_STATE_ERROR && in ufshcd_reset_and_restore()
7798 hba->ufshcd_state != UFSHCD_STATE_EH_SCHEDULED_NON_FATAL) in ufshcd_reset_and_restore()
7799 err = -EAGAIN; in ufshcd_reset_and_restore()
7800 } while (err && --retries); in ufshcd_reset_and_restore()
7803 * Inform scsi mid-layer that we did reset and allow to handle in ufshcd_reset_and_restore()
7806 scsi_report_bus_reset(hba->host, 0); in ufshcd_reset_and_restore()
7808 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_reset_and_restore()
7809 hba->saved_err |= saved_err; in ufshcd_reset_and_restore()
7810 hba->saved_uic_err |= saved_uic_err; in ufshcd_reset_and_restore()
7812 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_reset_and_restore()
7818 * ufshcd_eh_host_reset_handler - host reset handler registered to scsi layer
7827 struct ufs_hba *hba; in ufshcd_eh_host_reset_handler() local
7829 hba = shost_priv(cmd->device->host); in ufshcd_eh_host_reset_handler()
7833 * stuck in this function waiting for flush_work(&hba->eh_work). And in ufshcd_eh_host_reset_handler()
7837 if (hba->pm_op_in_progress) { in ufshcd_eh_host_reset_handler()
7838 if (ufshcd_link_recovery(hba)) in ufshcd_eh_host_reset_handler()
7844 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7845 hba->force_reset = true; in ufshcd_eh_host_reset_handler()
7846 ufshcd_schedule_eh_work(hba); in ufshcd_eh_host_reset_handler()
7847 dev_err(hba->dev, "%s: reset in progress - 1\n", __func__); in ufshcd_eh_host_reset_handler()
7848 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7850 flush_work(&hba->eh_work); in ufshcd_eh_host_reset_handler()
7852 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7853 if (hba->ufshcd_state == UFSHCD_STATE_ERROR) in ufshcd_eh_host_reset_handler()
7855 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_eh_host_reset_handler()
7861 * ufshcd_get_max_icc_level - calculate the ICC level
7876 for (i = start_scan; i >= 0; i--) { in ufshcd_get_max_icc_level()
7907 * ufshcd_find_max_sup_active_icc_level - calculate the max ICC level
7909 * @hba: per-adapter instance
7914 static u32 ufshcd_find_max_sup_active_icc_level(struct ufs_hba *hba, in ufshcd_find_max_sup_active_icc_level() argument
7919 if (!hba->vreg_info.vcc || !hba->vreg_info.vccq || in ufshcd_find_max_sup_active_icc_level()
7920 !hba->vreg_info.vccq2) { in ufshcd_find_max_sup_active_icc_level()
7923 * never-ending cycles of messages written back to storage by in ufshcd_find_max_sup_active_icc_level()
7927 dev_dbg(hba->dev, in ufshcd_find_max_sup_active_icc_level()
7933 if (hba->vreg_info.vcc->max_uA) in ufshcd_find_max_sup_active_icc_level()
7935 hba->vreg_info.vcc->max_uA, in ufshcd_find_max_sup_active_icc_level()
7936 POWER_DESC_MAX_ACTV_ICC_LVLS - 1, in ufshcd_find_max_sup_active_icc_level()
7939 if (hba->vreg_info.vccq->max_uA) in ufshcd_find_max_sup_active_icc_level()
7941 hba->vreg_info.vccq->max_uA, in ufshcd_find_max_sup_active_icc_level()
7945 if (hba->vreg_info.vccq2->max_uA) in ufshcd_find_max_sup_active_icc_level()
7947 hba->vreg_info.vccq2->max_uA, in ufshcd_find_max_sup_active_icc_level()
7954 static void ufshcd_set_active_icc_lvl(struct ufs_hba *hba) in ufshcd_set_active_icc_lvl() argument
7964 ret = ufshcd_read_desc_param(hba, QUERY_DESC_IDN_POWER, 0, 0, in ufshcd_set_active_icc_lvl()
7967 dev_err(hba->dev, in ufshcd_set_active_icc_lvl()
7973 icc_level = ufshcd_find_max_sup_active_icc_level(hba, desc_buf); in ufshcd_set_active_icc_lvl()
7974 dev_dbg(hba->dev, "%s: setting icc_level 0x%x", __func__, icc_level); in ufshcd_set_active_icc_lvl()
7976 ret = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_WRITE_ATTR, in ufshcd_set_active_icc_lvl()
7980 dev_err(hba->dev, in ufshcd_set_active_icc_lvl()
7991 blk_pm_runtime_init(sdev->request_queue, &sdev->sdev_gendev); in ufshcd_blk_pm_runtime_init()
7992 if (sdev->rpm_autosuspend) in ufshcd_blk_pm_runtime_init()
7993 pm_runtime_set_autosuspend_delay(&sdev->sdev_gendev, in ufshcd_blk_pm_runtime_init()
7999 * ufshcd_scsi_add_wlus - Adds required W-LUs
8000 * @hba: per-adapter instance
8021 * Return: zero on success (all required W-LUs are added successfully),
8022 * non-zero error value on failure (if failed to add any of the required W-LU).
8024 static int ufshcd_scsi_add_wlus(struct ufs_hba *hba) in ufshcd_scsi_add_wlus() argument
8029 hba->ufs_device_wlun = __scsi_add_device(hba->host, 0, 0, in ufshcd_scsi_add_wlus()
8031 if (IS_ERR(hba->ufs_device_wlun)) { in ufshcd_scsi_add_wlus()
8032 ret = PTR_ERR(hba->ufs_device_wlun); in ufshcd_scsi_add_wlus()
8033 hba->ufs_device_wlun = NULL; in ufshcd_scsi_add_wlus()
8036 scsi_device_put(hba->ufs_device_wlun); in ufshcd_scsi_add_wlus()
8038 sdev_rpmb = __scsi_add_device(hba->host, 0, 0, in ufshcd_scsi_add_wlus()
8047 sdev_boot = __scsi_add_device(hba->host, 0, 0, in ufshcd_scsi_add_wlus()
8050 dev_err(hba->dev, "%s: BOOT WLUN not found\n", __func__); in ufshcd_scsi_add_wlus()
8058 scsi_remove_device(hba->ufs_device_wlun); in ufshcd_scsi_add_wlus()
8063 static void ufshcd_wb_probe(struct ufs_hba *hba, const u8 *desc_buf) in ufshcd_wb_probe() argument
8065 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_wb_probe()
8070 if (!ufshcd_is_wb_allowed(hba)) in ufshcd_wb_probe()
8074 * Probe WB only for UFS-2.2 and UFS-3.1 (and later) devices or in ufshcd_wb_probe()
8078 if (!(dev_info->wspecversion >= 0x310 || in ufshcd_wb_probe()
8079 dev_info->wspecversion == 0x220 || in ufshcd_wb_probe()
8080 (hba->dev_quirks & UFS_DEVICE_QUIRK_SUPPORT_EXTENDED_FEATURES))) in ufshcd_wb_probe()
8094 dev_info->wb_buffer_type = desc_buf[DEVICE_DESC_PARAM_WB_TYPE]; in ufshcd_wb_probe()
8096 dev_info->b_presrv_uspc_en = in ufshcd_wb_probe()
8099 if (dev_info->wb_buffer_type == WB_BUF_MODE_SHARED) { in ufshcd_wb_probe()
8106 ufshcd_read_unit_desc_param(hba, in ufshcd_wb_probe()
8112 dev_info->wb_dedicated_lu = lun; in ufshcd_wb_probe()
8121 if (!ufshcd_is_wb_buf_lifetime_available(hba)) in ufshcd_wb_probe()
8127 hba->caps &= ~UFSHCD_CAP_WB_EN; in ufshcd_wb_probe()
8130 static void ufshcd_temp_notif_probe(struct ufs_hba *hba, const u8 *desc_buf) in ufshcd_temp_notif_probe() argument
8132 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_temp_notif_probe()
8136 if (!(hba->caps & UFSHCD_CAP_TEMP_NOTIF) || dev_info->wspecversion < 0x300) in ufshcd_temp_notif_probe()
8148 ufshcd_enable_ee(hba, mask); in ufshcd_temp_notif_probe()
8149 ufs_hwmon_probe(hba, mask); in ufshcd_temp_notif_probe()
8153 static void ufshcd_ext_iid_probe(struct ufs_hba *hba, u8 *desc_buf) in ufshcd_ext_iid_probe() argument
8155 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_ext_iid_probe()
8160 /* Only UFS-4.0 and above may support EXT_IID */ in ufshcd_ext_iid_probe()
8161 if (dev_info->wspecversion < 0x400) in ufshcd_ext_iid_probe()
8169 err = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR, in ufshcd_ext_iid_probe()
8172 dev_err(hba->dev, "failed reading bEXTIIDEn. err = %d\n", err); in ufshcd_ext_iid_probe()
8175 dev_info->b_ext_iid_en = ext_iid_en; in ufshcd_ext_iid_probe()
8178 void ufshcd_fixup_dev_quirks(struct ufs_hba *hba, in ufshcd_fixup_dev_quirks() argument
8182 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_fixup_dev_quirks()
8187 for (f = fixups; f->quirk; f++) { in ufshcd_fixup_dev_quirks()
8188 if ((f->wmanufacturerid == dev_info->wmanufacturerid || in ufshcd_fixup_dev_quirks()
8189 f->wmanufacturerid == UFS_ANY_VENDOR) && in ufshcd_fixup_dev_quirks()
8190 ((dev_info->model && in ufshcd_fixup_dev_quirks()
8191 STR_PRFX_EQUAL(f->model, dev_info->model)) || in ufshcd_fixup_dev_quirks()
8192 !strcmp(f->model, UFS_ANY_MODEL))) in ufshcd_fixup_dev_quirks()
8193 hba->dev_quirks |= f->quirk; in ufshcd_fixup_dev_quirks()
8198 static void ufs_fixup_device_setup(struct ufs_hba *hba) in ufs_fixup_device_setup() argument
8201 ufshcd_fixup_dev_quirks(hba, ufs_fixups); in ufs_fixup_device_setup()
8204 ufshcd_vops_fixup_dev_quirks(hba); in ufs_fixup_device_setup()
8207 static void ufshcd_update_rtc(struct ufs_hba *hba) in ufshcd_update_rtc() argument
8215 if (ts64.tv_sec < hba->dev_info.rtc_time_baseline) { in ufshcd_update_rtc()
8216 dev_warn_once(hba->dev, "%s: Current time precedes previous setting!\n", __func__); in ufshcd_update_rtc()
8221 * The Absolute RTC mode has a 136-year limit, spanning from 2010 to 2146. If a time beyond in ufshcd_update_rtc()
8224 val = ts64.tv_sec - hba->dev_info.rtc_time_baseline; in ufshcd_update_rtc()
8226 ufshcd_rpm_get_sync(hba); in ufshcd_update_rtc()
8227 err = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_WRITE_ATTR, QUERY_ATTR_IDN_SECONDS_PASSED, in ufshcd_update_rtc()
8229 ufshcd_rpm_put_sync(hba); in ufshcd_update_rtc()
8232 dev_err(hba->dev, "%s: Failed to update rtc %d\n", __func__, err); in ufshcd_update_rtc()
8233 else if (hba->dev_info.rtc_type == UFS_RTC_RELATIVE) in ufshcd_update_rtc()
8234 hba->dev_info.rtc_time_baseline = ts64.tv_sec; in ufshcd_update_rtc()
8239 struct ufs_hba *hba; in ufshcd_rtc_work() local
8241 hba = container_of(to_delayed_work(work), struct ufs_hba, ufs_rtc_update_work); in ufshcd_rtc_work()
8244 if (!ufshcd_is_ufs_dev_busy(hba) && hba->ufshcd_state == UFSHCD_STATE_OPERATIONAL) in ufshcd_rtc_work()
8245 ufshcd_update_rtc(hba); in ufshcd_rtc_work()
8247 if (ufshcd_is_ufs_dev_active(hba) && hba->dev_info.rtc_update_period) in ufshcd_rtc_work()
8248 schedule_delayed_work(&hba->ufs_rtc_update_work, in ufshcd_rtc_work()
8249 msecs_to_jiffies(hba->dev_info.rtc_update_period)); in ufshcd_rtc_work()
8252 static void ufs_init_rtc(struct ufs_hba *hba, u8 *desc_buf) in ufs_init_rtc() argument
8255 struct ufs_dev_info *dev_info = &hba->dev_info; in ufs_init_rtc()
8258 dev_info->rtc_type = UFS_RTC_ABSOLUTE; in ufs_init_rtc()
8265 dev_info->rtc_time_baseline = mktime64(2010, 1, 1, 0, 0, 0) - in ufs_init_rtc()
8268 dev_info->rtc_type = UFS_RTC_RELATIVE; in ufs_init_rtc()
8269 dev_info->rtc_time_baseline = 0; in ufs_init_rtc()
8277 dev_info->rtc_update_period = 0; in ufs_init_rtc()
8280 static int ufs_get_device_desc(struct ufs_hba *hba) in ufs_get_device_desc() argument
8285 struct ufs_dev_info *dev_info = &hba->dev_info; in ufs_get_device_desc()
8289 err = -ENOMEM; in ufs_get_device_desc()
8293 err = ufshcd_read_desc_param(hba, QUERY_DESC_IDN_DEVICE, 0, 0, desc_buf, in ufs_get_device_desc()
8296 dev_err(hba->dev, "%s: Failed reading Device Desc. err = %d\n", in ufs_get_device_desc()
8305 dev_info->wmanufacturerid = desc_buf[DEVICE_DESC_PARAM_MANF_ID] << 8 | in ufs_get_device_desc()
8309 dev_info->wspecversion = desc_buf[DEVICE_DESC_PARAM_SPEC_VER] << 8 | in ufs_get_device_desc()
8311 dev_info->bqueuedepth = desc_buf[DEVICE_DESC_PARAM_Q_DPTH]; in ufs_get_device_desc()
8315 err = ufshcd_read_string_desc(hba, model_index, in ufs_get_device_desc()
8316 &dev_info->model, SD_ASCII_STD); in ufs_get_device_desc()
8318 dev_err(hba->dev, "%s: Failed reading Product Name. err = %d\n", in ufs_get_device_desc()
8323 hba->luns_avail = desc_buf[DEVICE_DESC_PARAM_NUM_LU] + in ufs_get_device_desc()
8326 ufs_fixup_device_setup(hba); in ufs_get_device_desc()
8328 ufshcd_wb_probe(hba, desc_buf); in ufs_get_device_desc()
8330 ufshcd_temp_notif_probe(hba, desc_buf); in ufs_get_device_desc()
8332 ufs_init_rtc(hba, desc_buf); in ufs_get_device_desc()
8334 if (hba->ext_iid_sup) in ufs_get_device_desc()
8335 ufshcd_ext_iid_probe(hba, desc_buf); in ufs_get_device_desc()
8348 static void ufs_put_device_desc(struct ufs_hba *hba) in ufs_put_device_desc() argument
8350 struct ufs_dev_info *dev_info = &hba->dev_info; in ufs_put_device_desc()
8352 kfree(dev_info->model); in ufs_put_device_desc()
8353 dev_info->model = NULL; in ufs_put_device_desc()
8357 * ufshcd_tune_pa_tactivate - Tunes PA_TActivate of local UniPro
8358 * @hba: per-adapter instance
8361 * 1.61. PA_TActivate needs to be greater than or equal to peerM-PHY's
8365 * Return: zero on success, non-zero error value on failure.
8367 static int ufshcd_tune_pa_tactivate(struct ufs_hba *hba) in ufshcd_tune_pa_tactivate() argument
8372 ret = ufshcd_dme_peer_get(hba, in ufshcd_tune_pa_tactivate()
8384 ret = ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TACTIVATE), in ufshcd_tune_pa_tactivate()
8392 * ufshcd_tune_pa_hibern8time - Tunes PA_Hibern8Time of local UniPro
8393 * @hba: per-adapter instance
8396 * 1.61. PA_Hibern8Time needs to be maximum of local M-PHY's
8397 * TX_HIBERN8TIME_CAPABILITY & peer M-PHY's RX_HIBERN8TIME_CAPABILITY.
8400 * Return: zero on success, non-zero error value on failure.
8402 static int ufshcd_tune_pa_hibern8time(struct ufs_hba *hba) in ufshcd_tune_pa_hibern8time() argument
8408 ret = ufshcd_dme_get(hba, in ufshcd_tune_pa_hibern8time()
8415 ret = ufshcd_dme_peer_get(hba, in ufshcd_tune_pa_hibern8time()
8427 ret = ufshcd_dme_set(hba, UIC_ARG_MIB(PA_HIBERN8TIME), in ufshcd_tune_pa_hibern8time()
8434 * ufshcd_quirk_tune_host_pa_tactivate - Ensures that host PA_TACTIVATE is
8436 * @hba: per-adapter instance
8442 * Return: zero on success, non-zero error value on failure.
8444 static int ufshcd_quirk_tune_host_pa_tactivate(struct ufs_hba *hba) in ufshcd_quirk_tune_host_pa_tactivate() argument
8452 ret = ufshcd_dme_get(hba, UIC_ARG_MIB(PA_GRANULARITY), in ufshcd_quirk_tune_host_pa_tactivate()
8457 ret = ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_GRANULARITY), in ufshcd_quirk_tune_host_pa_tactivate()
8464 dev_err(hba->dev, "%s: invalid host PA_GRANULARITY %d", in ufshcd_quirk_tune_host_pa_tactivate()
8466 return -EINVAL; in ufshcd_quirk_tune_host_pa_tactivate()
8471 dev_err(hba->dev, "%s: invalid device PA_GRANULARITY %d", in ufshcd_quirk_tune_host_pa_tactivate()
8473 return -EINVAL; in ufshcd_quirk_tune_host_pa_tactivate()
8476 ret = ufshcd_dme_get(hba, UIC_ARG_MIB(PA_TACTIVATE), &pa_tactivate); in ufshcd_quirk_tune_host_pa_tactivate()
8480 ret = ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_TACTIVATE), in ufshcd_quirk_tune_host_pa_tactivate()
8485 pa_tactivate_us = pa_tactivate * gran_to_us_table[granularity - 1]; in ufshcd_quirk_tune_host_pa_tactivate()
8487 gran_to_us_table[peer_granularity - 1]; in ufshcd_quirk_tune_host_pa_tactivate()
8493 gran_to_us_table[peer_granularity - 1]; in ufshcd_quirk_tune_host_pa_tactivate()
8495 ret = ufshcd_dme_peer_set(hba, UIC_ARG_MIB(PA_TACTIVATE), in ufshcd_quirk_tune_host_pa_tactivate()
8503 static void ufshcd_tune_unipro_params(struct ufs_hba *hba) in ufshcd_tune_unipro_params() argument
8505 if (ufshcd_is_unipro_pa_params_tuning_req(hba)) { in ufshcd_tune_unipro_params()
8506 ufshcd_tune_pa_tactivate(hba); in ufshcd_tune_unipro_params()
8507 ufshcd_tune_pa_hibern8time(hba); in ufshcd_tune_unipro_params()
8510 ufshcd_vops_apply_dev_quirks(hba); in ufshcd_tune_unipro_params()
8512 if (hba->dev_quirks & UFS_DEVICE_QUIRK_PA_TACTIVATE) in ufshcd_tune_unipro_params()
8514 ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TACTIVATE), 10); in ufshcd_tune_unipro_params()
8516 if (hba->dev_quirks & UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE) in ufshcd_tune_unipro_params()
8517 ufshcd_quirk_tune_host_pa_tactivate(hba); in ufshcd_tune_unipro_params()
8520 static void ufshcd_clear_dbg_ufs_stats(struct ufs_hba *hba) in ufshcd_clear_dbg_ufs_stats() argument
8522 hba->ufs_stats.hibern8_exit_cnt = 0; in ufshcd_clear_dbg_ufs_stats()
8523 hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); in ufshcd_clear_dbg_ufs_stats()
8524 hba->req_abort_count = 0; in ufshcd_clear_dbg_ufs_stats()
8527 static int ufshcd_device_geo_params_init(struct ufs_hba *hba) in ufshcd_device_geo_params_init() argument
8534 err = -ENOMEM; in ufshcd_device_geo_params_init()
8538 err = ufshcd_read_desc_param(hba, QUERY_DESC_IDN_GEOMETRY, 0, 0, in ufshcd_device_geo_params_init()
8541 dev_err(hba->dev, "%s: Failed reading Geometry Desc. err = %d\n", in ufshcd_device_geo_params_init()
8547 hba->dev_info.max_lu_supported = 32; in ufshcd_device_geo_params_init()
8549 hba->dev_info.max_lu_supported = 8; in ufshcd_device_geo_params_init()
8581 void ufshcd_parse_dev_ref_clk_freq(struct ufs_hba *hba, struct clk *refclk) in ufshcd_parse_dev_ref_clk_freq() argument
8587 hba->dev_ref_clk_freq = in ufshcd_parse_dev_ref_clk_freq()
8590 if (hba->dev_ref_clk_freq == REF_CLK_FREQ_INVAL) in ufshcd_parse_dev_ref_clk_freq()
8591 dev_err(hba->dev, in ufshcd_parse_dev_ref_clk_freq()
8595 static int ufshcd_set_dev_ref_clk(struct ufs_hba *hba) in ufshcd_set_dev_ref_clk() argument
8599 u32 freq = hba->dev_ref_clk_freq; in ufshcd_set_dev_ref_clk()
8601 err = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR, in ufshcd_set_dev_ref_clk()
8605 dev_err(hba->dev, "failed reading bRefClkFreq. err = %d\n", in ufshcd_set_dev_ref_clk()
8613 err = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_WRITE_ATTR, in ufshcd_set_dev_ref_clk()
8617 dev_err(hba->dev, "bRefClkFreq setting to %lu Hz failed\n", in ufshcd_set_dev_ref_clk()
8622 dev_dbg(hba->dev, "bRefClkFreq setting to %lu Hz succeeded\n", in ufshcd_set_dev_ref_clk()
8629 static int ufshcd_device_params_init(struct ufs_hba *hba) in ufshcd_device_params_init() argument
8635 ret = ufshcd_device_geo_params_init(hba); in ufshcd_device_params_init()
8640 ret = ufs_get_device_desc(hba); in ufshcd_device_params_init()
8642 dev_err(hba->dev, "%s: Failed getting device info. err = %d\n", in ufshcd_device_params_init()
8647 ufshcd_get_ref_clk_gating_wait(hba); in ufshcd_device_params_init()
8649 if (!ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_READ_FLAG, in ufshcd_device_params_init()
8651 hba->dev_info.f_power_on_wp_en = flag; in ufshcd_device_params_init()
8653 /* Probe maximum power mode co-supported by both UFS host and device */ in ufshcd_device_params_init()
8654 if (ufshcd_get_max_pwr_mode(hba)) in ufshcd_device_params_init()
8655 dev_err(hba->dev, in ufshcd_device_params_init()
8662 static void ufshcd_set_timestamp_attr(struct ufs_hba *hba) in ufshcd_set_timestamp_attr() argument
8667 struct ufs_dev_info *dev_info = &hba->dev_info; in ufshcd_set_timestamp_attr()
8670 if (dev_info->wspecversion < 0x400) in ufshcd_set_timestamp_attr()
8673 ufshcd_hold(hba); in ufshcd_set_timestamp_attr()
8675 mutex_lock(&hba->dev_cmd.lock); in ufshcd_set_timestamp_attr()
8677 ufshcd_init_query(hba, &request, &response, in ufshcd_set_timestamp_attr()
8681 request->query_func = UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST; in ufshcd_set_timestamp_attr()
8683 upiu_data = (struct utp_upiu_query_v4_0 *)&request->upiu_req; in ufshcd_set_timestamp_attr()
8685 put_unaligned_be64(ktime_get_real_ns(), &upiu_data->osf3); in ufshcd_set_timestamp_attr()
8687 err = ufshcd_exec_dev_cmd(hba, DEV_CMD_TYPE_QUERY, QUERY_REQ_TIMEOUT); in ufshcd_set_timestamp_attr()
8690 dev_err(hba->dev, "%s: failed to set timestamp %d\n", in ufshcd_set_timestamp_attr()
8693 mutex_unlock(&hba->dev_cmd.lock); in ufshcd_set_timestamp_attr()
8694 ufshcd_release(hba); in ufshcd_set_timestamp_attr()
8698 * ufshcd_add_lus - probe and add UFS logical units
8699 * @hba: per-adapter instance
8703 static int ufshcd_add_lus(struct ufs_hba *hba) in ufshcd_add_lus() argument
8708 ret = ufshcd_scsi_add_wlus(hba); in ufshcd_add_lus()
8713 if (ufshcd_is_clkscaling_supported(hba)) { in ufshcd_add_lus()
8714 memcpy(&hba->clk_scaling.saved_pwr_info, in ufshcd_add_lus()
8715 &hba->pwr_info, in ufshcd_add_lus()
8717 hba->clk_scaling.is_allowed = true; in ufshcd_add_lus()
8719 ret = ufshcd_devfreq_init(hba); in ufshcd_add_lus()
8723 hba->clk_scaling.is_enabled = true; in ufshcd_add_lus()
8724 ufshcd_init_clk_scaling_sysfs(hba); in ufshcd_add_lus()
8727 ufs_bsg_probe(hba); in ufshcd_add_lus()
8728 scsi_scan_host(hba->host); in ufshcd_add_lus()
8734 /* SDB - Single Doorbell */
8735 static void ufshcd_release_sdb_queue(struct ufs_hba *hba, int nutrs) in ufshcd_release_sdb_queue() argument
8739 ucdl_size = ufshcd_get_ucd_size(hba) * nutrs; in ufshcd_release_sdb_queue()
8740 dmam_free_coherent(hba->dev, ucdl_size, hba->ucdl_base_addr, in ufshcd_release_sdb_queue()
8741 hba->ucdl_dma_addr); in ufshcd_release_sdb_queue()
8744 dmam_free_coherent(hba->dev, utrdl_size, hba->utrdl_base_addr, in ufshcd_release_sdb_queue()
8745 hba->utrdl_dma_addr); in ufshcd_release_sdb_queue()
8747 devm_kfree(hba->dev, hba->lrb); in ufshcd_release_sdb_queue()
8750 static int ufshcd_alloc_mcq(struct ufs_hba *hba) in ufshcd_alloc_mcq() argument
8753 int old_nutrs = hba->nutrs; in ufshcd_alloc_mcq()
8755 ret = ufshcd_mcq_decide_queue_depth(hba); in ufshcd_alloc_mcq()
8759 hba->nutrs = ret; in ufshcd_alloc_mcq()
8760 ret = ufshcd_mcq_init(hba); in ufshcd_alloc_mcq()
8768 if (hba->nutrs != old_nutrs) { in ufshcd_alloc_mcq()
8769 ufshcd_release_sdb_queue(hba, old_nutrs); in ufshcd_alloc_mcq()
8770 ret = ufshcd_memory_alloc(hba); in ufshcd_alloc_mcq()
8773 ufshcd_host_memory_configure(hba); in ufshcd_alloc_mcq()
8776 ret = ufshcd_mcq_memory_alloc(hba); in ufshcd_alloc_mcq()
8782 hba->nutrs = old_nutrs; in ufshcd_alloc_mcq()
8786 static void ufshcd_config_mcq(struct ufs_hba *hba) in ufshcd_config_mcq() argument
8791 ret = ufshcd_mcq_vops_config_esi(hba); in ufshcd_config_mcq()
8792 dev_info(hba->dev, "ESI %sconfigured\n", ret ? "is not " : ""); in ufshcd_config_mcq()
8795 if (hba->quirks & UFSHCD_QUIRK_MCQ_BROKEN_INTR) in ufshcd_config_mcq()
8797 ufshcd_enable_intr(hba, intrs); in ufshcd_config_mcq()
8798 ufshcd_mcq_make_queues_operational(hba); in ufshcd_config_mcq()
8799 ufshcd_mcq_config_mac(hba, hba->nutrs); in ufshcd_config_mcq()
8801 hba->host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_config_mcq()
8802 hba->reserved_slot = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_config_mcq()
8805 ufshcd_writel(hba, ufshcd_readl(hba, REG_UFS_MEM_CFG) | 0x1, in ufshcd_config_mcq()
8807 hba->mcq_enabled = true; in ufshcd_config_mcq()
8809 …dev_info(hba->dev, "MCQ configured, nr_queues=%d, io_queues=%d, read_queue=%d, poll_queues=%d, que… in ufshcd_config_mcq()
8810 hba->nr_hw_queues, hba->nr_queues[HCTX_TYPE_DEFAULT], in ufshcd_config_mcq()
8811 hba->nr_queues[HCTX_TYPE_READ], hba->nr_queues[HCTX_TYPE_POLL], in ufshcd_config_mcq()
8812 hba->nutrs); in ufshcd_config_mcq()
8815 static int ufshcd_device_init(struct ufs_hba *hba, bool init_dev_params) in ufshcd_device_init() argument
8818 struct Scsi_Host *host = hba->host; in ufshcd_device_init()
8820 hba->ufshcd_state = UFSHCD_STATE_RESET; in ufshcd_device_init()
8822 ret = ufshcd_link_startup(hba); in ufshcd_device_init()
8826 if (hba->quirks & UFSHCD_QUIRK_SKIP_PH_CONFIGURATION) in ufshcd_device_init()
8830 ufshcd_clear_dbg_ufs_stats(hba); in ufshcd_device_init()
8833 ufshcd_set_link_active(hba); in ufshcd_device_init()
8836 if (is_mcq_enabled(hba) && !init_dev_params) in ufshcd_device_init()
8837 ufshcd_config_mcq(hba); in ufshcd_device_init()
8840 ret = ufshcd_verify_dev_init(hba); in ufshcd_device_init()
8845 ret = ufshcd_complete_dev_init(hba); in ufshcd_device_init()
8854 ret = ufshcd_device_params_init(hba); in ufshcd_device_init()
8857 if (is_mcq_supported(hba) && !hba->scsi_host_added) { in ufshcd_device_init()
8858 ret = ufshcd_alloc_mcq(hba); in ufshcd_device_init()
8860 ufshcd_config_mcq(hba); in ufshcd_device_init()
8864 dev_err(hba->dev, "MCQ mode is disabled, err=%d\n", in ufshcd_device_init()
8867 ret = scsi_add_host(host, hba->dev); in ufshcd_device_init()
8869 dev_err(hba->dev, "scsi_add_host failed\n"); in ufshcd_device_init()
8872 hba->scsi_host_added = true; in ufshcd_device_init()
8873 } else if (is_mcq_supported(hba)) { in ufshcd_device_init()
8875 ufshcd_config_mcq(hba); in ufshcd_device_init()
8879 ufshcd_tune_unipro_params(hba); in ufshcd_device_init()
8882 ufshcd_set_ufs_dev_active(hba); in ufshcd_device_init()
8883 ufshcd_force_reset_auto_bkops(hba); in ufshcd_device_init()
8885 ufshcd_set_timestamp_attr(hba); in ufshcd_device_init()
8886 schedule_delayed_work(&hba->ufs_rtc_update_work, in ufshcd_device_init()
8890 if (hba->max_pwr_info.is_valid) { in ufshcd_device_init()
8895 if (hba->dev_ref_clk_freq != REF_CLK_FREQ_INVAL) in ufshcd_device_init()
8896 ufshcd_set_dev_ref_clk(hba); in ufshcd_device_init()
8897 ret = ufshcd_config_pwr_mode(hba, &hba->max_pwr_info.info); in ufshcd_device_init()
8899 dev_err(hba->dev, "%s: Failed setting power mode, err = %d\n", in ufshcd_device_init()
8909 * ufshcd_probe_hba - probe hba to detect device and initialize it
8910 * @hba: per-adapter instance
8913 * Execute link-startup and verify device initialization
8917 static int ufshcd_probe_hba(struct ufs_hba *hba, bool init_dev_params) in ufshcd_probe_hba() argument
8923 ret = ufshcd_device_init(hba, init_dev_params); in ufshcd_probe_hba()
8927 if (!hba->pm_op_in_progress && in ufshcd_probe_hba()
8928 (hba->quirks & UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH)) { in ufshcd_probe_hba()
8930 ufshcd_device_reset(hba); in ufshcd_probe_hba()
8931 ufshcd_hba_stop(hba); in ufshcd_probe_hba()
8932 ufshcd_vops_reinit_notify(hba); in ufshcd_probe_hba()
8933 ret = ufshcd_hba_enable(hba); in ufshcd_probe_hba()
8935 dev_err(hba->dev, "Host controller enable failed\n"); in ufshcd_probe_hba()
8936 ufshcd_print_evt_hist(hba); in ufshcd_probe_hba()
8937 ufshcd_print_host_state(hba); in ufshcd_probe_hba()
8942 ret = ufshcd_device_init(hba, init_dev_params); in ufshcd_probe_hba()
8947 ufshcd_print_pwr_info(hba); in ufshcd_probe_hba()
8955 ufshcd_set_active_icc_lvl(hba); in ufshcd_probe_hba()
8958 ufshcd_configure_wb(hba); in ufshcd_probe_hba()
8960 if (hba->ee_usr_mask) in ufshcd_probe_hba()
8961 ufshcd_write_ee_control(hba); in ufshcd_probe_hba()
8962 ufshcd_configure_auto_hibern8(hba); in ufshcd_probe_hba()
8965 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_probe_hba()
8967 hba->ufshcd_state = UFSHCD_STATE_ERROR; in ufshcd_probe_hba()
8968 else if (hba->ufshcd_state == UFSHCD_STATE_RESET) in ufshcd_probe_hba()
8969 hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; in ufshcd_probe_hba()
8970 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_probe_hba()
8972 trace_ufshcd_init(dev_name(hba->dev), ret, in ufshcd_probe_hba()
8974 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_probe_hba()
8979 * ufshcd_async_scan - asynchronous execution for probing hba
8985 struct ufs_hba *hba = (struct ufs_hba *)data; in ufshcd_async_scan() local
8988 down(&hba->host_sem); in ufshcd_async_scan()
8989 /* Initialize hba, detect and initialize UFS device */ in ufshcd_async_scan()
8990 ret = ufshcd_probe_hba(hba, true); in ufshcd_async_scan()
8991 up(&hba->host_sem); in ufshcd_async_scan()
8996 ret = ufshcd_add_lus(hba); in ufshcd_async_scan()
8999 pm_runtime_put_sync(hba->dev); in ufshcd_async_scan()
9002 dev_err(hba->dev, "%s failed: %d\n", __func__, ret); in ufshcd_async_scan()
9007 struct ufs_hba *hba = shost_priv(scmd->device->host); in ufshcd_eh_timed_out() local
9009 if (!hba->system_suspending) { in ufshcd_eh_timed_out()
9020 ufshcd_link_recovery(hba); in ufshcd_eh_timed_out()
9021 dev_info(hba->dev, "%s() finished; outstanding_tasks = %#lx.\n", in ufshcd_eh_timed_out()
9022 __func__, hba->outstanding_tasks); in ufshcd_eh_timed_out()
9024 return hba->outstanding_reqs ? SCSI_EH_RESET_TIMER : SCSI_EH_DONE; in ufshcd_eh_timed_out()
9058 .this_id = -1,
9085 if (!vreg->max_uA) in ufshcd_config_vreg_load()
9088 ret = regulator_set_load(vreg->reg, ua); in ufshcd_config_vreg_load()
9091 __func__, vreg->name, ua, ret); in ufshcd_config_vreg_load()
9097 static inline int ufshcd_config_vreg_lpm(struct ufs_hba *hba, in ufshcd_config_vreg_lpm() argument
9100 return ufshcd_config_vreg_load(hba->dev, vreg, UFS_VREG_LPM_LOAD_UA); in ufshcd_config_vreg_lpm()
9103 static inline int ufshcd_config_vreg_hpm(struct ufs_hba *hba, in ufshcd_config_vreg_hpm() argument
9109 return ufshcd_config_vreg_load(hba->dev, vreg, vreg->max_uA); in ufshcd_config_vreg_hpm()
9115 if (regulator_count_voltages(vreg->reg) <= 0) in ufshcd_config_vreg()
9118 return ufshcd_config_vreg_load(dev, vreg, on ? vreg->max_uA : 0); in ufshcd_config_vreg()
9125 if (!vreg || vreg->enabled) in ufshcd_enable_vreg()
9130 ret = regulator_enable(vreg->reg); in ufshcd_enable_vreg()
9133 vreg->enabled = true; in ufshcd_enable_vreg()
9136 __func__, vreg->name, ret); in ufshcd_enable_vreg()
9145 if (!vreg || !vreg->enabled || vreg->always_on) in ufshcd_disable_vreg()
9148 ret = regulator_disable(vreg->reg); in ufshcd_disable_vreg()
9153 vreg->enabled = false; in ufshcd_disable_vreg()
9156 __func__, vreg->name, ret); in ufshcd_disable_vreg()
9162 static int ufshcd_setup_vreg(struct ufs_hba *hba, bool on) in ufshcd_setup_vreg() argument
9165 struct device *dev = hba->dev; in ufshcd_setup_vreg()
9166 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_setup_vreg()
9168 ret = ufshcd_toggle_vreg(dev, info->vcc, on); in ufshcd_setup_vreg()
9172 ret = ufshcd_toggle_vreg(dev, info->vccq, on); in ufshcd_setup_vreg()
9176 ret = ufshcd_toggle_vreg(dev, info->vccq2, on); in ufshcd_setup_vreg()
9180 ufshcd_toggle_vreg(dev, info->vccq2, false); in ufshcd_setup_vreg()
9181 ufshcd_toggle_vreg(dev, info->vccq, false); in ufshcd_setup_vreg()
9182 ufshcd_toggle_vreg(dev, info->vcc, false); in ufshcd_setup_vreg()
9187 static int ufshcd_setup_hba_vreg(struct ufs_hba *hba, bool on) in ufshcd_setup_hba_vreg() argument
9189 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_setup_hba_vreg()
9191 return ufshcd_toggle_vreg(hba->dev, info->vdd_hba, on); in ufshcd_setup_hba_vreg()
9201 vreg->reg = devm_regulator_get(dev, vreg->name); in ufshcd_get_vreg()
9202 if (IS_ERR(vreg->reg)) { in ufshcd_get_vreg()
9203 ret = PTR_ERR(vreg->reg); in ufshcd_get_vreg()
9205 __func__, vreg->name, ret); in ufshcd_get_vreg()
9212 static int ufshcd_init_vreg(struct ufs_hba *hba) in ufshcd_init_vreg() argument
9215 struct device *dev = hba->dev; in ufshcd_init_vreg()
9216 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_init_vreg()
9218 ret = ufshcd_get_vreg(dev, info->vcc); in ufshcd_init_vreg()
9222 ret = ufshcd_get_vreg(dev, info->vccq); in ufshcd_init_vreg()
9224 ret = ufshcd_get_vreg(dev, info->vccq2); in ufshcd_init_vreg()
9229 static int ufshcd_init_hba_vreg(struct ufs_hba *hba) in ufshcd_init_hba_vreg() argument
9231 struct ufs_vreg_info *info = &hba->vreg_info; in ufshcd_init_hba_vreg()
9233 return ufshcd_get_vreg(hba->dev, info->vdd_hba); in ufshcd_init_hba_vreg()
9236 static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on) in ufshcd_setup_clocks() argument
9240 struct list_head *head = &hba->clk_list_head; in ufshcd_setup_clocks()
9248 ret = ufshcd_vops_setup_clocks(hba, on, PRE_CHANGE); in ufshcd_setup_clocks()
9253 if (!IS_ERR_OR_NULL(clki->clk)) { in ufshcd_setup_clocks()
9258 if (ufshcd_is_link_active(hba) && in ufshcd_setup_clocks()
9259 clki->keep_link_active) in ufshcd_setup_clocks()
9262 clk_state_changed = on ^ clki->enabled; in ufshcd_setup_clocks()
9263 if (on && !clki->enabled) { in ufshcd_setup_clocks()
9264 ret = clk_prepare_enable(clki->clk); in ufshcd_setup_clocks()
9266 dev_err(hba->dev, "%s: %s prepare enable failed, %d\n", in ufshcd_setup_clocks()
9267 __func__, clki->name, ret); in ufshcd_setup_clocks()
9270 } else if (!on && clki->enabled) { in ufshcd_setup_clocks()
9271 clk_disable_unprepare(clki->clk); in ufshcd_setup_clocks()
9273 clki->enabled = on; in ufshcd_setup_clocks()
9274 dev_dbg(hba->dev, "%s: clk: %s %sabled\n", __func__, in ufshcd_setup_clocks()
9275 clki->name, on ? "en" : "dis"); in ufshcd_setup_clocks()
9279 ret = ufshcd_vops_setup_clocks(hba, on, POST_CHANGE); in ufshcd_setup_clocks()
9286 if (!IS_ERR_OR_NULL(clki->clk) && clki->enabled) in ufshcd_setup_clocks()
9287 clk_disable_unprepare(clki->clk); in ufshcd_setup_clocks()
9290 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_setup_clocks()
9291 hba->clk_gating.state = CLKS_ON; in ufshcd_setup_clocks()
9292 trace_ufshcd_clk_gating(dev_name(hba->dev), in ufshcd_setup_clocks()
9293 hba->clk_gating.state); in ufshcd_setup_clocks()
9294 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_setup_clocks()
9298 trace_ufshcd_profile_clk_gating(dev_name(hba->dev), in ufshcd_setup_clocks()
9304 static enum ufs_ref_clk_freq ufshcd_parse_ref_clk_property(struct ufs_hba *hba) in ufshcd_parse_ref_clk_property() argument
9307 int ret = device_property_read_u32(hba->dev, "ref-clk-freq", &freq); in ufshcd_parse_ref_clk_property()
9310 dev_dbg(hba->dev, "Cannot query 'ref-clk-freq' property = %d", ret); in ufshcd_parse_ref_clk_property()
9317 static int ufshcd_init_clocks(struct ufs_hba *hba) in ufshcd_init_clocks() argument
9321 struct device *dev = hba->dev; in ufshcd_init_clocks()
9322 struct list_head *head = &hba->clk_list_head; in ufshcd_init_clocks()
9328 if (!clki->name) in ufshcd_init_clocks()
9331 clki->clk = devm_clk_get(dev, clki->name); in ufshcd_init_clocks()
9332 if (IS_ERR(clki->clk)) { in ufshcd_init_clocks()
9333 ret = PTR_ERR(clki->clk); in ufshcd_init_clocks()
9335 __func__, clki->name, ret); in ufshcd_init_clocks()
9344 if (!strcmp(clki->name, "ref_clk")) in ufshcd_init_clocks()
9345 ufshcd_parse_dev_ref_clk_freq(hba, clki->clk); in ufshcd_init_clocks()
9347 if (clki->max_freq) { in ufshcd_init_clocks()
9348 ret = clk_set_rate(clki->clk, clki->max_freq); in ufshcd_init_clocks()
9350 dev_err(hba->dev, "%s: %s clk set rate(%dHz) failed, %d\n", in ufshcd_init_clocks()
9351 __func__, clki->name, in ufshcd_init_clocks()
9352 clki->max_freq, ret); in ufshcd_init_clocks()
9355 clki->curr_freq = clki->max_freq; in ufshcd_init_clocks()
9358 clki->name, clk_get_rate(clki->clk)); in ufshcd_init_clocks()
9362 if (hba->use_pm_opp) { in ufshcd_init_clocks()
9363 ret = ufshcd_opp_set_rate(hba, ULONG_MAX); in ufshcd_init_clocks()
9365 dev_err(hba->dev, "%s: failed to set OPP: %d", __func__, in ufshcd_init_clocks()
9375 static int ufshcd_variant_hba_init(struct ufs_hba *hba) in ufshcd_variant_hba_init() argument
9379 if (!hba->vops) in ufshcd_variant_hba_init()
9382 err = ufshcd_vops_init(hba); in ufshcd_variant_hba_init()
9384 dev_err_probe(hba->dev, err, in ufshcd_variant_hba_init()
9386 __func__, ufshcd_get_var_name(hba), err); in ufshcd_variant_hba_init()
9391 static void ufshcd_variant_hba_exit(struct ufs_hba *hba) in ufshcd_variant_hba_exit() argument
9393 if (!hba->vops) in ufshcd_variant_hba_exit()
9396 ufshcd_vops_exit(hba); in ufshcd_variant_hba_exit()
9399 static int ufshcd_hba_init(struct ufs_hba *hba) in ufshcd_hba_init() argument
9410 err = ufshcd_init_hba_vreg(hba); in ufshcd_hba_init()
9414 err = ufshcd_setup_hba_vreg(hba, true); in ufshcd_hba_init()
9418 err = ufshcd_init_clocks(hba); in ufshcd_hba_init()
9422 if (hba->dev_ref_clk_freq == REF_CLK_FREQ_INVAL) in ufshcd_hba_init()
9423 hba->dev_ref_clk_freq = ufshcd_parse_ref_clk_property(hba); in ufshcd_hba_init()
9425 err = ufshcd_setup_clocks(hba, true); in ufshcd_hba_init()
9429 err = ufshcd_init_vreg(hba); in ufshcd_hba_init()
9433 err = ufshcd_setup_vreg(hba, true); in ufshcd_hba_init()
9437 err = ufshcd_variant_hba_init(hba); in ufshcd_hba_init()
9441 ufs_debugfs_hba_init(hba); in ufshcd_hba_init()
9442 ufs_fault_inject_hba_init(hba); in ufshcd_hba_init()
9444 hba->is_powered = true; in ufshcd_hba_init()
9448 ufshcd_setup_vreg(hba, false); in ufshcd_hba_init()
9450 ufshcd_setup_clocks(hba, false); in ufshcd_hba_init()
9452 ufshcd_setup_hba_vreg(hba, false); in ufshcd_hba_init()
9457 static void ufshcd_hba_exit(struct ufs_hba *hba) in ufshcd_hba_exit() argument
9459 if (hba->is_powered) { in ufshcd_hba_exit()
9460 ufshcd_exit_clk_scaling(hba); in ufshcd_hba_exit()
9461 ufshcd_exit_clk_gating(hba); in ufshcd_hba_exit()
9462 if (hba->eh_wq) in ufshcd_hba_exit()
9463 destroy_workqueue(hba->eh_wq); in ufshcd_hba_exit()
9464 ufs_debugfs_hba_exit(hba); in ufshcd_hba_exit()
9465 ufshcd_variant_hba_exit(hba); in ufshcd_hba_exit()
9466 ufshcd_setup_vreg(hba, false); in ufshcd_hba_exit()
9467 ufshcd_setup_clocks(hba, false); in ufshcd_hba_exit()
9468 ufshcd_setup_hba_vreg(hba, false); in ufshcd_hba_exit()
9469 hba->is_powered = false; in ufshcd_hba_exit()
9470 ufs_put_device_desc(hba); in ufshcd_hba_exit()
9491 * ufshcd_set_dev_pwr_mode - sends START STOP UNIT command to set device
9493 * @hba: per adapter instance
9499 static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba, in ufshcd_set_dev_pwr_mode() argument
9507 spin_lock_irqsave(hba->host->host_lock, flags); in ufshcd_set_dev_pwr_mode()
9508 sdp = hba->ufs_device_wlun; in ufshcd_set_dev_pwr_mode()
9512 ret = -ENODEV; in ufshcd_set_dev_pwr_mode()
9513 spin_unlock_irqrestore(hba->host->host_lock, flags); in ufshcd_set_dev_pwr_mode()
9519 * If scsi commands fail, the scsi mid-layer schedules scsi error- in ufshcd_set_dev_pwr_mode()
9524 hba->host->eh_noresume = 1; in ufshcd_set_dev_pwr_mode()
9531 for (retries = 3; retries > 0; --retries) { in ufshcd_set_dev_pwr_mode()
9547 ret = -EIO; in ufshcd_set_dev_pwr_mode()
9550 hba->curr_dev_pwr_mode = pwr_mode; in ufshcd_set_dev_pwr_mode()
9554 hba->host->eh_noresume = 0; in ufshcd_set_dev_pwr_mode()
9558 static int ufshcd_link_state_transition(struct ufs_hba *hba, in ufshcd_link_state_transition() argument
9564 if (req_link_state == hba->uic_link_state) in ufshcd_link_state_transition()
9568 ret = ufshcd_uic_hibern8_enter(hba); in ufshcd_link_state_transition()
9570 ufshcd_set_link_hibern8(hba); in ufshcd_link_state_transition()
9572 dev_err(hba->dev, "%s: hibern8 enter failed %d\n", in ufshcd_link_state_transition()
9583 (!check_for_bkops || !hba->auto_bkops_enabled)) { in ufshcd_link_state_transition()
9594 ret = ufshcd_uic_hibern8_enter(hba); in ufshcd_link_state_transition()
9596 dev_err(hba->dev, "%s: hibern8 enter failed %d\n", in ufshcd_link_state_transition()
9604 ufshcd_hba_stop(hba); in ufshcd_link_state_transition()
9609 ufshcd_set_link_off(hba); in ufshcd_link_state_transition()
9616 static void ufshcd_vreg_set_lpm(struct ufs_hba *hba) in ufshcd_vreg_set_lpm() argument
9626 if (!ufshcd_is_link_active(hba) && in ufshcd_vreg_set_lpm()
9627 hba->dev_quirks & UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM) in ufshcd_vreg_set_lpm()
9645 if (ufshcd_is_ufs_dev_poweroff(hba) && ufshcd_is_link_off(hba) && in ufshcd_vreg_set_lpm()
9646 !hba->dev_info.is_lu_power_on_wp) { in ufshcd_vreg_set_lpm()
9647 ufshcd_setup_vreg(hba, false); in ufshcd_vreg_set_lpm()
9649 } else if (!ufshcd_is_ufs_dev_active(hba)) { in ufshcd_vreg_set_lpm()
9650 ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, false); in ufshcd_vreg_set_lpm()
9652 if (ufshcd_is_link_hibern8(hba) || ufshcd_is_link_off(hba)) { in ufshcd_vreg_set_lpm()
9653 ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq); in ufshcd_vreg_set_lpm()
9654 ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq2); in ufshcd_vreg_set_lpm()
9659 * Some UFS devices require delay after VCC power rail is turned-off. in ufshcd_vreg_set_lpm()
9661 if (vcc_off && hba->vreg_info.vcc && in ufshcd_vreg_set_lpm()
9662 hba->dev_quirks & UFS_DEVICE_QUIRK_DELAY_AFTER_LPM) in ufshcd_vreg_set_lpm()
9667 static int ufshcd_vreg_set_hpm(struct ufs_hba *hba) in ufshcd_vreg_set_hpm() argument
9671 if (ufshcd_is_ufs_dev_poweroff(hba) && ufshcd_is_link_off(hba) && in ufshcd_vreg_set_hpm()
9672 !hba->dev_info.is_lu_power_on_wp) { in ufshcd_vreg_set_hpm()
9673 ret = ufshcd_setup_vreg(hba, true); in ufshcd_vreg_set_hpm()
9674 } else if (!ufshcd_is_ufs_dev_active(hba)) { in ufshcd_vreg_set_hpm()
9675 if (!ufshcd_is_link_active(hba)) { in ufshcd_vreg_set_hpm()
9676 ret = ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq); in ufshcd_vreg_set_hpm()
9679 ret = ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq2); in ufshcd_vreg_set_hpm()
9683 ret = ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, true); in ufshcd_vreg_set_hpm()
9688 ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq); in ufshcd_vreg_set_hpm()
9690 ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, false); in ufshcd_vreg_set_hpm()
9696 static void ufshcd_hba_vreg_set_lpm(struct ufs_hba *hba) in ufshcd_hba_vreg_set_lpm() argument
9698 if (ufshcd_is_link_off(hba) || ufshcd_can_aggressive_pc(hba)) in ufshcd_hba_vreg_set_lpm()
9699 ufshcd_setup_hba_vreg(hba, false); in ufshcd_hba_vreg_set_lpm()
9702 static void ufshcd_hba_vreg_set_hpm(struct ufs_hba *hba) in ufshcd_hba_vreg_set_hpm() argument
9704 if (ufshcd_is_link_off(hba) || ufshcd_can_aggressive_pc(hba)) in ufshcd_hba_vreg_set_hpm()
9705 ufshcd_setup_hba_vreg(hba, true); in ufshcd_hba_vreg_set_hpm()
9708 static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op) in __ufshcd_wl_suspend() argument
9716 hba->pm_op_in_progress = true; in __ufshcd_wl_suspend()
9719 hba->rpm_lvl : hba->spm_lvl; in __ufshcd_wl_suspend()
9731 ufshcd_hold(hba); in __ufshcd_wl_suspend()
9732 hba->clk_gating.is_suspended = true; in __ufshcd_wl_suspend()
9734 if (ufshcd_is_clkscaling_supported(hba)) in __ufshcd_wl_suspend()
9735 ufshcd_clk_scaling_suspend(hba, true); in __ufshcd_wl_suspend()
9742 if ((req_dev_pwr_mode == hba->curr_dev_pwr_mode) && in __ufshcd_wl_suspend()
9743 (req_link_state == hba->uic_link_state)) in __ufshcd_wl_suspend()
9747 if (!ufshcd_is_ufs_dev_active(hba) || !ufshcd_is_link_active(hba)) { in __ufshcd_wl_suspend()
9748 ret = -EINVAL; in __ufshcd_wl_suspend()
9753 if (ufshcd_can_autobkops_during_suspend(hba)) { in __ufshcd_wl_suspend()
9759 ret = ufshcd_urgent_bkops(hba); in __ufshcd_wl_suspend()
9766 ufshcd_force_error_recovery(hba); in __ufshcd_wl_suspend()
9767 ret = -EBUSY; in __ufshcd_wl_suspend()
9772 ufshcd_disable_auto_bkops(hba); in __ufshcd_wl_suspend()
9779 hba->dev_info.b_rpm_dev_flush_capable = in __ufshcd_wl_suspend()
9780 hba->auto_bkops_enabled || in __ufshcd_wl_suspend()
9783 ufshcd_is_auto_hibern8_enabled(hba))) && in __ufshcd_wl_suspend()
9784 ufshcd_wb_need_flush(hba)); in __ufshcd_wl_suspend()
9787 flush_work(&hba->eeh_work); in __ufshcd_wl_suspend()
9789 ret = ufshcd_vops_suspend(hba, pm_op, PRE_CHANGE); in __ufshcd_wl_suspend()
9793 if (req_dev_pwr_mode != hba->curr_dev_pwr_mode) { in __ufshcd_wl_suspend()
9796 ufshcd_disable_auto_bkops(hba); in __ufshcd_wl_suspend()
9798 if (!hba->dev_info.b_rpm_dev_flush_capable) { in __ufshcd_wl_suspend()
9799 ret = ufshcd_set_dev_pwr_mode(hba, req_dev_pwr_mode); in __ufshcd_wl_suspend()
9806 ufshcd_force_error_recovery(hba); in __ufshcd_wl_suspend()
9807 ret = -EBUSY; in __ufshcd_wl_suspend()
9818 check_for_bkops = !ufshcd_is_ufs_dev_deepsleep(hba); in __ufshcd_wl_suspend()
9819 ret = ufshcd_link_state_transition(hba, req_link_state, check_for_bkops); in __ufshcd_wl_suspend()
9826 ufshcd_force_error_recovery(hba); in __ufshcd_wl_suspend()
9827 ret = -EBUSY; in __ufshcd_wl_suspend()
9838 ret = ufshcd_vops_suspend(hba, pm_op, POST_CHANGE); in __ufshcd_wl_suspend()
9842 cancel_delayed_work_sync(&hba->ufs_rtc_update_work); in __ufshcd_wl_suspend()
9851 if (ufshcd_is_ufs_dev_deepsleep(hba)) { in __ufshcd_wl_suspend()
9852 ufshcd_device_reset(hba); in __ufshcd_wl_suspend()
9853 WARN_ON(!ufshcd_is_link_off(hba)); in __ufshcd_wl_suspend()
9855 if (ufshcd_is_link_hibern8(hba) && !ufshcd_uic_hibern8_exit(hba)) in __ufshcd_wl_suspend()
9856 ufshcd_set_link_active(hba); in __ufshcd_wl_suspend()
9857 else if (ufshcd_is_link_off(hba)) in __ufshcd_wl_suspend()
9858 ufshcd_host_reset_and_restore(hba); in __ufshcd_wl_suspend()
9861 if (ufshcd_is_ufs_dev_deepsleep(hba)) { in __ufshcd_wl_suspend()
9862 ufshcd_device_reset(hba); in __ufshcd_wl_suspend()
9863 ufshcd_host_reset_and_restore(hba); in __ufshcd_wl_suspend()
9865 if (!ufshcd_set_dev_pwr_mode(hba, UFS_ACTIVE_PWR_MODE)) in __ufshcd_wl_suspend()
9866 ufshcd_disable_auto_bkops(hba); in __ufshcd_wl_suspend()
9868 if (ufshcd_is_clkscaling_supported(hba)) in __ufshcd_wl_suspend()
9869 ufshcd_clk_scaling_suspend(hba, false); in __ufshcd_wl_suspend()
9871 hba->dev_info.b_rpm_dev_flush_capable = false; in __ufshcd_wl_suspend()
9873 if (hba->dev_info.b_rpm_dev_flush_capable) { in __ufshcd_wl_suspend()
9874 schedule_delayed_work(&hba->rpm_dev_flush_recheck_work, in __ufshcd_wl_suspend()
9879 ufshcd_update_evt_hist(hba, UFS_EVT_WL_SUSP_ERR, (u32)ret); in __ufshcd_wl_suspend()
9880 hba->clk_gating.is_suspended = false; in __ufshcd_wl_suspend()
9881 ufshcd_release(hba); in __ufshcd_wl_suspend()
9883 hba->pm_op_in_progress = false; in __ufshcd_wl_suspend()
9888 static int __ufshcd_wl_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) in __ufshcd_wl_resume() argument
9891 enum uic_link_state old_link_state = hba->uic_link_state; in __ufshcd_wl_resume()
9893 hba->pm_op_in_progress = true; in __ufshcd_wl_resume()
9900 ret = ufshcd_vops_resume(hba, pm_op); in __ufshcd_wl_resume()
9905 WARN_ON(ufshcd_is_ufs_dev_deepsleep(hba) && !ufshcd_is_link_off(hba)); in __ufshcd_wl_resume()
9907 if (ufshcd_is_link_hibern8(hba)) { in __ufshcd_wl_resume()
9908 ret = ufshcd_uic_hibern8_exit(hba); in __ufshcd_wl_resume()
9910 ufshcd_set_link_active(hba); in __ufshcd_wl_resume()
9912 dev_err(hba->dev, "%s: hibern8 exit failed %d\n", in __ufshcd_wl_resume()
9916 } else if (ufshcd_is_link_off(hba)) { in __ufshcd_wl_resume()
9923 ret = ufshcd_reset_and_restore(hba); in __ufshcd_wl_resume()
9928 if (ret || !ufshcd_is_link_active(hba)) in __ufshcd_wl_resume()
9932 if (!ufshcd_is_ufs_dev_active(hba)) { in __ufshcd_wl_resume()
9933 ret = ufshcd_set_dev_pwr_mode(hba, UFS_ACTIVE_PWR_MODE); in __ufshcd_wl_resume()
9936 ufshcd_set_timestamp_attr(hba); in __ufshcd_wl_resume()
9937 schedule_delayed_work(&hba->ufs_rtc_update_work, in __ufshcd_wl_resume()
9941 if (ufshcd_keep_autobkops_enabled_except_suspend(hba)) in __ufshcd_wl_resume()
9942 ufshcd_enable_auto_bkops(hba); in __ufshcd_wl_resume()
9946 * keep auto-bkops enabled or else disable it. in __ufshcd_wl_resume()
9948 ufshcd_urgent_bkops(hba); in __ufshcd_wl_resume()
9950 if (hba->ee_usr_mask) in __ufshcd_wl_resume()
9951 ufshcd_write_ee_control(hba); in __ufshcd_wl_resume()
9953 if (ufshcd_is_clkscaling_supported(hba)) in __ufshcd_wl_resume()
9954 ufshcd_clk_scaling_suspend(hba, false); in __ufshcd_wl_resume()
9956 if (hba->dev_info.b_rpm_dev_flush_capable) { in __ufshcd_wl_resume()
9957 hba->dev_info.b_rpm_dev_flush_capable = false; in __ufshcd_wl_resume()
9958 cancel_delayed_work(&hba->rpm_dev_flush_recheck_work); in __ufshcd_wl_resume()
9961 ufshcd_configure_auto_hibern8(hba); in __ufshcd_wl_resume()
9966 ufshcd_link_state_transition(hba, old_link_state, 0); in __ufshcd_wl_resume()
9968 ufshcd_vops_suspend(hba, pm_op, PRE_CHANGE); in __ufshcd_wl_resume()
9969 ufshcd_vops_suspend(hba, pm_op, POST_CHANGE); in __ufshcd_wl_resume()
9972 ufshcd_update_evt_hist(hba, UFS_EVT_WL_RES_ERR, (u32)ret); in __ufshcd_wl_resume()
9973 hba->clk_gating.is_suspended = false; in __ufshcd_wl_resume()
9974 ufshcd_release(hba); in __ufshcd_wl_resume()
9975 hba->pm_op_in_progress = false; in __ufshcd_wl_resume()
9982 struct ufs_hba *hba; in ufshcd_wl_runtime_suspend() local
9986 hba = shost_priv(sdev->host); in ufshcd_wl_runtime_suspend()
9988 ret = __ufshcd_wl_suspend(hba, UFS_RUNTIME_PM); in ufshcd_wl_runtime_suspend()
9990 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_runtime_suspend()
9994 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_runtime_suspend()
10002 struct ufs_hba *hba; in ufshcd_wl_runtime_resume() local
10006 hba = shost_priv(sdev->host); in ufshcd_wl_runtime_resume()
10008 ret = __ufshcd_wl_resume(hba, UFS_RUNTIME_PM); in ufshcd_wl_runtime_resume()
10010 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_runtime_resume()
10014 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_runtime_resume()
10024 struct ufs_hba *hba; in ufshcd_wl_suspend() local
10028 hba = shost_priv(sdev->host); in ufshcd_wl_suspend()
10029 down(&hba->host_sem); in ufshcd_wl_suspend()
10030 hba->system_suspending = true; in ufshcd_wl_suspend()
10035 ret = __ufshcd_wl_suspend(hba, UFS_SYSTEM_PM); in ufshcd_wl_suspend()
10037 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_suspend()
10038 up(&hba->host_sem); in ufshcd_wl_suspend()
10043 hba->is_sys_suspended = true; in ufshcd_wl_suspend()
10046 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_suspend()
10054 struct ufs_hba *hba; in ufshcd_wl_resume() local
10058 hba = shost_priv(sdev->host); in ufshcd_wl_resume()
10063 ret = __ufshcd_wl_resume(hba, UFS_SYSTEM_PM); in ufshcd_wl_resume()
10065 dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret); in ufshcd_wl_resume()
10069 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_wl_resume()
10071 hba->is_sys_suspended = false; in ufshcd_wl_resume()
10072 hba->system_suspending = false; in ufshcd_wl_resume()
10073 up(&hba->host_sem); in ufshcd_wl_resume()
10079 * ufshcd_suspend - helper function for suspend operations
10080 * @hba: per adapter instance
10083 * and set vreg and hba-vreg in lpm mode.
10087 static int ufshcd_suspend(struct ufs_hba *hba) in ufshcd_suspend() argument
10091 if (!hba->is_powered) in ufshcd_suspend()
10097 ufshcd_disable_irq(hba); in ufshcd_suspend()
10098 ret = ufshcd_setup_clocks(hba, false); in ufshcd_suspend()
10100 ufshcd_enable_irq(hba); in ufshcd_suspend()
10103 if (ufshcd_is_clkgating_allowed(hba)) { in ufshcd_suspend()
10104 hba->clk_gating.state = CLKS_OFF; in ufshcd_suspend()
10105 trace_ufshcd_clk_gating(dev_name(hba->dev), in ufshcd_suspend()
10106 hba->clk_gating.state); in ufshcd_suspend()
10109 ufshcd_vreg_set_lpm(hba); in ufshcd_suspend()
10111 ufshcd_hba_vreg_set_lpm(hba); in ufshcd_suspend()
10117 * ufshcd_resume - helper function for resume operations
10118 * @hba: per adapter instance
10121 * irqs of the hba.
10123 * Return: 0 for success and non-zero for failure.
10125 static int ufshcd_resume(struct ufs_hba *hba) in ufshcd_resume() argument
10129 if (!hba->is_powered) in ufshcd_resume()
10132 ufshcd_hba_vreg_set_hpm(hba); in ufshcd_resume()
10133 ret = ufshcd_vreg_set_hpm(hba); in ufshcd_resume()
10138 ret = ufshcd_setup_clocks(hba, true); in ufshcd_resume()
10143 ufshcd_enable_irq(hba); in ufshcd_resume()
10148 ufshcd_vreg_set_lpm(hba); in ufshcd_resume()
10151 ufshcd_update_evt_hist(hba, UFS_EVT_RESUME_ERR, (u32)ret); in ufshcd_resume()
10158 * ufshcd_system_suspend - system suspend callback
10164 * Return: 0 for success and non-zero for failure.
10168 struct ufs_hba *hba = dev_get_drvdata(dev); in ufshcd_system_suspend() local
10172 if (pm_runtime_suspended(hba->dev)) in ufshcd_system_suspend()
10175 ret = ufshcd_suspend(hba); in ufshcd_system_suspend()
10177 trace_ufshcd_system_suspend(dev_name(hba->dev), ret, in ufshcd_system_suspend()
10179 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_system_suspend()
10185 * ufshcd_system_resume - system resume callback
10191 * Return: 0 for success and non-zero for failure.
10195 struct ufs_hba *hba = dev_get_drvdata(dev); in ufshcd_system_resume() local
10199 if (pm_runtime_suspended(hba->dev)) in ufshcd_system_resume()
10202 ret = ufshcd_resume(hba); in ufshcd_system_resume()
10205 trace_ufshcd_system_resume(dev_name(hba->dev), ret, in ufshcd_system_resume()
10207 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_system_resume()
10216 * ufshcd_runtime_suspend - runtime suspend callback
10221 * Return: 0 for success and non-zero for failure.
10225 struct ufs_hba *hba = dev_get_drvdata(dev); in ufshcd_runtime_suspend() local
10229 ret = ufshcd_suspend(hba); in ufshcd_runtime_suspend()
10231 trace_ufshcd_runtime_suspend(dev_name(hba->dev), ret, in ufshcd_runtime_suspend()
10233 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_runtime_suspend()
10239 * ufshcd_runtime_resume - runtime resume routine
10252 struct ufs_hba *hba = dev_get_drvdata(dev); in ufshcd_runtime_resume() local
10256 ret = ufshcd_resume(hba); in ufshcd_runtime_resume()
10258 trace_ufshcd_runtime_resume(dev_name(hba->dev), ret, in ufshcd_runtime_resume()
10260 hba->curr_dev_pwr_mode, hba->uic_link_state); in ufshcd_runtime_resume()
10269 struct ufs_hba *hba = shost_priv(sdev->host); in ufshcd_wl_shutdown() local
10271 down(&hba->host_sem); in ufshcd_wl_shutdown()
10272 hba->shutting_down = true; in ufshcd_wl_shutdown()
10273 up(&hba->host_sem); in ufshcd_wl_shutdown()
10276 ufshcd_rpm_get_sync(hba); in ufshcd_wl_shutdown()
10278 shost_for_each_device(sdev, hba->host) { in ufshcd_wl_shutdown()
10279 if (sdev == hba->ufs_device_wlun) in ufshcd_wl_shutdown()
10283 __ufshcd_wl_suspend(hba, UFS_SHUTDOWN_PM); in ufshcd_wl_shutdown()
10289 if (ufshcd_is_ufs_dev_poweroff(hba) && ufshcd_is_link_off(hba)) in ufshcd_wl_shutdown()
10290 ufshcd_suspend(hba); in ufshcd_wl_shutdown()
10292 hba->is_powered = false; in ufshcd_wl_shutdown()
10296 * ufshcd_remove - de-allocate SCSI host and host memory space
10298 * @hba: per adapter instance
10300 void ufshcd_remove(struct ufs_hba *hba) in ufshcd_remove() argument
10302 if (hba->ufs_device_wlun) in ufshcd_remove()
10303 ufshcd_rpm_get_sync(hba); in ufshcd_remove()
10304 ufs_hwmon_remove(hba); in ufshcd_remove()
10305 ufs_bsg_remove(hba); in ufshcd_remove()
10306 ufs_sysfs_remove_nodes(hba->dev); in ufshcd_remove()
10307 blk_mq_destroy_queue(hba->tmf_queue); in ufshcd_remove()
10308 blk_put_queue(hba->tmf_queue); in ufshcd_remove()
10309 blk_mq_free_tag_set(&hba->tmf_tag_set); in ufshcd_remove()
10310 scsi_remove_host(hba->host); in ufshcd_remove()
10312 ufshcd_disable_intr(hba, hba->intr_mask); in ufshcd_remove()
10313 ufshcd_hba_stop(hba); in ufshcd_remove()
10314 ufshcd_hba_exit(hba); in ufshcd_remove()
10330 struct ufs_hba *hba = dev_get_drvdata(dev); in ufshcd_system_restore() local
10338 ufshcd_writel(hba, lower_32_bits(hba->utrdl_dma_addr), in ufshcd_system_restore()
10340 ufshcd_writel(hba, upper_32_bits(hba->utrdl_dma_addr), in ufshcd_system_restore()
10342 ufshcd_writel(hba, lower_32_bits(hba->utmrdl_dma_addr), in ufshcd_system_restore()
10344 ufshcd_writel(hba, upper_32_bits(hba->utmrdl_dma_addr), in ufshcd_system_restore()
10354 ufshcd_set_link_off(hba); in ufshcd_system_restore()
10369 * ufshcd_dealloc_host - deallocate Host Bus Adapter (HBA)
10370 * @hba: pointer to Host Bus Adapter (HBA)
10372 void ufshcd_dealloc_host(struct ufs_hba *hba) in ufshcd_dealloc_host() argument
10374 scsi_host_put(hba->host); in ufshcd_dealloc_host()
10379 * ufshcd_set_dma_mask - Set dma mask based on the controller
10381 * @hba: per adapter instance
10383 * Return: 0 for success, non-zero for failure.
10385 static int ufshcd_set_dma_mask(struct ufs_hba *hba) in ufshcd_set_dma_mask() argument
10387 if (hba->capabilities & MASK_64_ADDRESSING_SUPPORT) { in ufshcd_set_dma_mask()
10388 if (!dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(64))) in ufshcd_set_dma_mask()
10391 return dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(32)); in ufshcd_set_dma_mask()
10395 * ufshcd_alloc_host - allocate Host Bus Adapter (HBA)
10399 * Return: 0 on success, non-zero value on failure.
10404 struct ufs_hba *hba; in ufshcd_alloc_host() local
10410 err = -ENODEV; in ufshcd_alloc_host()
10418 err = -ENOMEM; in ufshcd_alloc_host()
10421 host->nr_maps = HCTX_TYPE_POLL + 1; in ufshcd_alloc_host()
10422 hba = shost_priv(host); in ufshcd_alloc_host()
10423 hba->host = host; in ufshcd_alloc_host()
10424 hba->dev = dev; in ufshcd_alloc_host()
10425 hba->dev_ref_clk_freq = REF_CLK_FREQ_INVAL; in ufshcd_alloc_host()
10426 hba->nop_out_timeout = NOP_OUT_TIMEOUT; in ufshcd_alloc_host()
10427 ufshcd_set_sg_entry_size(hba, sizeof(struct ufshcd_sg_entry)); in ufshcd_alloc_host()
10428 INIT_LIST_HEAD(&hba->clk_list_head); in ufshcd_alloc_host()
10429 spin_lock_init(&hba->outstanding_lock); in ufshcd_alloc_host()
10431 *hba_handle = hba; in ufshcd_alloc_host()
10451 * ufshcd_init - Driver initialization routine
10452 * @hba: per-adapter instance
10456 * Return: 0 on success, non-zero value on failure.
10458 int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) in ufshcd_init() argument
10461 struct Scsi_Host *host = hba->host; in ufshcd_init()
10462 struct device *dev = hba->dev; in ufshcd_init()
10470 dev_set_drvdata(dev, hba); in ufshcd_init()
10473 dev_err(hba->dev, in ufshcd_init()
10475 err = -ENODEV; in ufshcd_init()
10479 hba->mmio_base = mmio_base; in ufshcd_init()
10480 hba->irq = irq; in ufshcd_init()
10481 hba->vps = &ufs_hba_vps; in ufshcd_init()
10483 err = ufshcd_hba_init(hba); in ufshcd_init()
10488 err = ufshcd_hba_capabilities(hba); in ufshcd_init()
10493 hba->ufs_version = ufshcd_get_ufs_version(hba); in ufshcd_init()
10496 hba->intr_mask = ufshcd_get_intr_mask(hba); in ufshcd_init()
10498 err = ufshcd_set_dma_mask(hba); in ufshcd_init()
10500 dev_err(hba->dev, "set dma mask failed\n"); in ufshcd_init()
10505 err = ufshcd_memory_alloc(hba); in ufshcd_init()
10507 dev_err(hba->dev, "Memory allocation failed\n"); in ufshcd_init()
10512 ufshcd_host_memory_configure(hba); in ufshcd_init()
10514 host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_init()
10515 host->cmd_per_lun = hba->nutrs - UFSHCD_NUM_RESERVED; in ufshcd_init()
10516 host->max_id = UFSHCD_MAX_ID; in ufshcd_init()
10517 host->max_lun = UFS_MAX_LUNS; in ufshcd_init()
10518 host->max_channel = UFSHCD_MAX_CHANNEL; in ufshcd_init()
10519 host->unique_id = host->host_no; in ufshcd_init()
10520 host->max_cmd_len = UFS_CDB_SIZE; in ufshcd_init()
10521 host->queuecommand_may_block = !!(hba->caps & UFSHCD_CAP_CLK_GATING); in ufshcd_init()
10523 hba->max_pwr_info.is_valid = false; in ufshcd_init()
10527 hba->host->host_no); in ufshcd_init()
10528 hba->eh_wq = create_singlethread_workqueue(eh_wq_name); in ufshcd_init()
10529 if (!hba->eh_wq) { in ufshcd_init()
10530 dev_err(hba->dev, "%s: failed to create eh workqueue\n", in ufshcd_init()
10532 err = -ENOMEM; in ufshcd_init()
10535 INIT_WORK(&hba->eh_work, ufshcd_err_handler); in ufshcd_init()
10536 INIT_WORK(&hba->eeh_work, ufshcd_exception_event_handler); in ufshcd_init()
10538 sema_init(&hba->host_sem, 1); in ufshcd_init()
10541 mutex_init(&hba->uic_cmd_mutex); in ufshcd_init()
10544 mutex_init(&hba->dev_cmd.lock); in ufshcd_init()
10547 mutex_init(&hba->ee_ctrl_mutex); in ufshcd_init()
10549 mutex_init(&hba->wb_mutex); in ufshcd_init()
10550 init_rwsem(&hba->clk_scaling_lock); in ufshcd_init()
10552 ufshcd_init_clk_gating(hba); in ufshcd_init()
10554 ufshcd_init_clk_scaling(hba); in ufshcd_init()
10561 ufshcd_writel(hba, ufshcd_readl(hba, REG_INTERRUPT_STATUS), in ufshcd_init()
10563 ufshcd_writel(hba, 0, REG_INTERRUPT_ENABLE); in ufshcd_init()
10571 err = devm_request_irq(dev, irq, ufshcd_intr, IRQF_SHARED, UFSHCD, hba); in ufshcd_init()
10573 dev_err(hba->dev, "request irq failed\n"); in ufshcd_init()
10576 hba->is_irq_enabled = true; in ufshcd_init()
10579 if (!is_mcq_supported(hba)) { in ufshcd_init()
10580 err = scsi_add_host(host, hba->dev); in ufshcd_init()
10582 dev_err(hba->dev, "scsi_add_host failed\n"); in ufshcd_init()
10587 hba->tmf_tag_set = (struct blk_mq_tag_set) { in ufshcd_init()
10589 .queue_depth = hba->nutmrs, in ufshcd_init()
10593 err = blk_mq_alloc_tag_set(&hba->tmf_tag_set); in ufshcd_init()
10596 hba->tmf_queue = blk_mq_init_queue(&hba->tmf_tag_set); in ufshcd_init()
10597 if (IS_ERR(hba->tmf_queue)) { in ufshcd_init()
10598 err = PTR_ERR(hba->tmf_queue); in ufshcd_init()
10601 hba->tmf_rqs = devm_kcalloc(hba->dev, hba->nutmrs, in ufshcd_init()
10602 sizeof(*hba->tmf_rqs), GFP_KERNEL); in ufshcd_init()
10603 if (!hba->tmf_rqs) { in ufshcd_init()
10604 err = -ENOMEM; in ufshcd_init()
10609 ufshcd_device_reset(hba); in ufshcd_init()
10611 ufshcd_init_crypto(hba); in ufshcd_init()
10614 err = ufshcd_hba_enable(hba); in ufshcd_init()
10616 dev_err(hba->dev, "Host controller enable failed\n"); in ufshcd_init()
10617 ufshcd_print_evt_hist(hba); in ufshcd_init()
10618 ufshcd_print_host_state(hba); in ufshcd_init()
10627 hba->rpm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( in ufshcd_init()
10630 hba->spm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state( in ufshcd_init()
10634 INIT_DELAYED_WORK(&hba->rpm_dev_flush_recheck_work, ufshcd_rpm_dev_flush_recheck_work); in ufshcd_init()
10635 INIT_DELAYED_WORK(&hba->ufs_rtc_update_work, ufshcd_rtc_work); in ufshcd_init()
10637 /* Set the default auto-hiberate idle timer value to 150 ms */ in ufshcd_init()
10638 if (ufshcd_is_auto_hibern8_supported(hba) && !hba->ahit) { in ufshcd_init()
10639 hba->ahit = FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 150) | in ufshcd_init()
10645 atomic_set(&hba->scsi_block_reqs_cnt, 0); in ufshcd_init()
10647 * We are assuming that device wasn't put in sleep/power-down in ufshcd_init()
10652 ufshcd_set_ufs_dev_active(hba); in ufshcd_init()
10654 async_schedule(ufshcd_async_scan, hba); in ufshcd_init()
10655 ufs_sysfs_add_nodes(hba->dev); in ufshcd_init()
10661 blk_mq_destroy_queue(hba->tmf_queue); in ufshcd_init()
10662 blk_put_queue(hba->tmf_queue); in ufshcd_init()
10664 blk_mq_free_tag_set(&hba->tmf_tag_set); in ufshcd_init()
10666 scsi_remove_host(hba->host); in ufshcd_init()
10668 hba->is_irq_enabled = false; in ufshcd_init()
10669 ufshcd_hba_exit(hba); in ufshcd_init()
10677 struct ufs_hba *hba = dev_get_drvdata(dev); in ufshcd_resume_complete() local
10679 if (hba->complete_put) { in ufshcd_resume_complete()
10680 ufshcd_rpm_put(hba); in ufshcd_resume_complete()
10681 hba->complete_put = false; in ufshcd_resume_complete()
10686 static bool ufshcd_rpm_ok_for_spm(struct ufs_hba *hba) in ufshcd_rpm_ok_for_spm() argument
10688 struct device *dev = &hba->ufs_device_wlun->sdev_gendev; in ufshcd_rpm_ok_for_spm()
10694 spin_lock_irqsave(&dev->power.lock, flags); in ufshcd_rpm_ok_for_spm()
10695 dev_pwr_mode = ufs_get_pm_lvl_to_dev_pwr_mode(hba->spm_lvl); in ufshcd_rpm_ok_for_spm()
10696 link_state = ufs_get_pm_lvl_to_link_pwr_state(hba->spm_lvl); in ufshcd_rpm_ok_for_spm()
10698 hba->curr_dev_pwr_mode == dev_pwr_mode && in ufshcd_rpm_ok_for_spm()
10699 hba->uic_link_state == link_state && in ufshcd_rpm_ok_for_spm()
10700 !hba->dev_info.b_rpm_dev_flush_capable; in ufshcd_rpm_ok_for_spm()
10701 spin_unlock_irqrestore(&dev->power.lock, flags); in ufshcd_rpm_ok_for_spm()
10708 struct ufs_hba *hba = dev_get_drvdata(dev); in __ufshcd_suspend_prepare() local
10712 * SCSI assumes that runtime-pm and system-pm for scsi drivers in __ufshcd_suspend_prepare()
10713 * are same. And it doesn't wake up the device for system-suspend in __ufshcd_suspend_prepare()
10717 if (hba->ufs_device_wlun) { in __ufshcd_suspend_prepare()
10719 ufshcd_rpm_get_noresume(hba); in __ufshcd_suspend_prepare()
10724 if (!rpm_ok_for_spm || !ufshcd_rpm_ok_for_spm(hba)) { in __ufshcd_suspend_prepare()
10726 ret = ufshcd_rpm_resume(hba); in __ufshcd_suspend_prepare()
10727 if (ret < 0 && ret != -EACCES) { in __ufshcd_suspend_prepare()
10728 ufshcd_rpm_put(hba); in __ufshcd_suspend_prepare()
10732 hba->complete_put = true; in __ufshcd_suspend_prepare()
10748 struct ufs_hba *hba = shost_priv(sdev->host); in ufshcd_wl_poweroff() local
10750 __ufshcd_wl_suspend(hba, UFS_SHUTDOWN_PM); in ufshcd_wl_poweroff()
10760 return -ENODEV; in ufshcd_wl_probe()
10762 blk_pm_runtime_init(sdev->request_queue, dev); in ufshcd_wl_probe()
10790 * gcc compilers before version 10 cannot do constant-folding for in ufshcd_check_header_layout()
10791 * sub-byte bitfields. Hence skip the layout checks for gcc 9 and in ufshcd_check_header_layout()
10835 * ufs_dev_wlun_template - describes ufs device wlun
10836 * ufs-device wlun - used to send pm commands
10837 * All luns are consumers of ufs-device wlun.
10841 * With ufs design, SSU should be sent to ufs-device wlun.