1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Universal Flash Storage Host controller driver
4 * Copyright (C) 2011-2013 Samsung India Software Operations
5 * Copyright (c) 2013-2016, The Linux Foundation. All rights reserved.
8 * Santosh Yaraganavi <santosh.sy@samsung.com>
9 * Vinayak Holikatti <h.vinayak@samsung.com>
15 #include <linux/module.h>
16 #include <linux/kernel.h>
17 #include <linux/init.h>
18 #include <linux/interrupt.h>
20 #include <linux/delay.h>
21 #include <linux/slab.h>
22 #include <linux/spinlock.h>
23 #include <linux/rwsem.h>
24 #include <linux/workqueue.h>
25 #include <linux/errno.h>
26 #include <linux/types.h>
27 #include <linux/wait.h>
28 #include <linux/bitops.h>
29 #include <linux/pm_runtime.h>
30 #include <linux/clk.h>
31 #include <linux/completion.h>
32 #include <linux/regulator/consumer.h>
33 #include <linux/bitfield.h>
34 #include <linux/devfreq.h>
35 #include <linux/blk-crypto-profile.h>
39 #include <asm/byteorder.h>
40 #include <scsi/scsi.h>
41 #include <scsi/scsi_cmnd.h>
42 #include <scsi/scsi_host.h>
43 #include <scsi/scsi_tcq.h>
44 #include <scsi/scsi_dbg.h>
45 #include <scsi/scsi_eh.h>
48 #include "ufs_quirks.h"
51 #define UFSHCD "ufshcd"
52 #define UFSHCD_DRIVER_VERSION "0.2"
57 DEV_CMD_TYPE_NOP = 0x0,
58 DEV_CMD_TYPE_QUERY = 0x1,
62 /* uic specific errors */
70 UFS_EVT_AUTO_HIBERN8_ERR,
72 UFS_EVT_LINK_STARTUP_FAIL,
87 * struct uic_command - UIC command structure
88 * @command: UIC command
89 * @argument1: UIC command argument 1
90 * @argument2: UIC command argument 2
91 * @argument3: UIC command argument 3
92 * @cmd_active: Indicate if UIC command is outstanding
93 * @done: UIC command completion
101 struct completion done;
104 /* Used to differentiate the power management options */
111 /* Host <-> Device UniPro Link state */
112 enum uic_link_state {
113 UIC_LINK_OFF_STATE = 0, /* Link powered down or disabled */
114 UIC_LINK_ACTIVE_STATE = 1, /* Link is in Fast/Slow/Sleep state */
115 UIC_LINK_HIBERN8_STATE = 2, /* Link is in Hibernate state */
116 UIC_LINK_BROKEN_STATE = 3, /* Link is in broken state */
119 #define ufshcd_is_link_off(hba) ((hba)->uic_link_state == UIC_LINK_OFF_STATE)
120 #define ufshcd_is_link_active(hba) ((hba)->uic_link_state == \
121 UIC_LINK_ACTIVE_STATE)
122 #define ufshcd_is_link_hibern8(hba) ((hba)->uic_link_state == \
123 UIC_LINK_HIBERN8_STATE)
124 #define ufshcd_is_link_broken(hba) ((hba)->uic_link_state == \
125 UIC_LINK_BROKEN_STATE)
126 #define ufshcd_set_link_off(hba) ((hba)->uic_link_state = UIC_LINK_OFF_STATE)
127 #define ufshcd_set_link_active(hba) ((hba)->uic_link_state = \
128 UIC_LINK_ACTIVE_STATE)
129 #define ufshcd_set_link_hibern8(hba) ((hba)->uic_link_state = \
130 UIC_LINK_HIBERN8_STATE)
131 #define ufshcd_set_link_broken(hba) ((hba)->uic_link_state = \
132 UIC_LINK_BROKEN_STATE)
134 #define ufshcd_set_ufs_dev_active(h) \
135 ((h)->curr_dev_pwr_mode = UFS_ACTIVE_PWR_MODE)
136 #define ufshcd_set_ufs_dev_sleep(h) \
137 ((h)->curr_dev_pwr_mode = UFS_SLEEP_PWR_MODE)
138 #define ufshcd_set_ufs_dev_poweroff(h) \
139 ((h)->curr_dev_pwr_mode = UFS_POWERDOWN_PWR_MODE)
140 #define ufshcd_set_ufs_dev_deepsleep(h) \
141 ((h)->curr_dev_pwr_mode = UFS_DEEPSLEEP_PWR_MODE)
142 #define ufshcd_is_ufs_dev_active(h) \
143 ((h)->curr_dev_pwr_mode == UFS_ACTIVE_PWR_MODE)
144 #define ufshcd_is_ufs_dev_sleep(h) \
145 ((h)->curr_dev_pwr_mode == UFS_SLEEP_PWR_MODE)
146 #define ufshcd_is_ufs_dev_poweroff(h) \
147 ((h)->curr_dev_pwr_mode == UFS_POWERDOWN_PWR_MODE)
148 #define ufshcd_is_ufs_dev_deepsleep(h) \
149 ((h)->curr_dev_pwr_mode == UFS_DEEPSLEEP_PWR_MODE)
152 * UFS Power management levels.
153 * Each level is in increasing order of power savings, except DeepSleep
154 * which is lower than PowerDown with power on but not PowerDown with
168 struct ufs_pm_lvl_states {
169 enum ufs_dev_pwr_mode dev_state;
170 enum uic_link_state link_state;
174 * struct ufshcd_lrb - local reference block
175 * @utr_descriptor_ptr: UTRD address of the command
176 * @ucd_req_ptr: UCD address of the command
177 * @ucd_rsp_ptr: Response UPIU address for this command
178 * @ucd_prdt_ptr: PRDT address of the command
179 * @utrd_dma_addr: UTRD dma address for debug
180 * @ucd_prdt_dma_addr: PRDT dma address for debug
181 * @ucd_rsp_dma_addr: UPIU response dma address for debug
182 * @ucd_req_dma_addr: UPIU request dma address for debug
183 * @cmd: pointer to SCSI command
184 * @sense_buffer: pointer to sense buffer address of the SCSI command
185 * @sense_bufflen: Length of the sense buffer
186 * @scsi_status: SCSI status of the command
187 * @command_type: SCSI, UFS, Query.
188 * @task_tag: Task tag of the command
189 * @lun: LUN of the command
190 * @intr_cmd: Interrupt command (doesn't participate in interrupt aggregation)
191 * @issue_time_stamp: time stamp for debug purposes
192 * @compl_time_stamp: time stamp for statistics
193 * @crypto_key_slot: the key slot to use for inline crypto (-1 if none)
194 * @data_unit_num: the data unit number for the first block for inline crypto
195 * @req_abort_skip: skip request abort task flag
198 struct utp_transfer_req_desc *utr_descriptor_ptr;
199 struct utp_upiu_req *ucd_req_ptr;
200 struct utp_upiu_rsp *ucd_rsp_ptr;
201 struct ufshcd_sg_entry *ucd_prdt_ptr;
203 dma_addr_t utrd_dma_addr;
204 dma_addr_t ucd_req_dma_addr;
205 dma_addr_t ucd_rsp_dma_addr;
206 dma_addr_t ucd_prdt_dma_addr;
208 struct scsi_cmnd *cmd;
210 unsigned int sense_bufflen;
215 u8 lun; /* UPIU LUN id field is only 8-bit wide */
217 ktime_t issue_time_stamp;
218 ktime_t compl_time_stamp;
219 #ifdef CONFIG_SCSI_UFS_CRYPTO
228 * struct ufs_query - holds relevant data structures for query request
229 * @request: request upiu and function
230 * @descriptor: buffer for sending/receiving descriptor
231 * @response: response upiu and response
234 struct ufs_query_req request;
236 struct ufs_query_res response;
240 * struct ufs_dev_cmd - all assosiated fields with device management commands
241 * @type: device management command type - Query, NOP OUT
242 * @lock: lock to allow one command at a time
243 * @complete: internal commands completion
246 enum dev_cmd_type type;
248 struct completion *complete;
249 struct ufs_query query;
253 * struct ufs_clk_info - UFS clock related info
254 * @list: list headed by hba->clk_list_head
257 * @max_freq: maximum frequency supported by the clock
258 * @min_freq: min frequency that can be used for clock scaling
259 * @curr_freq: indicates the current frequency that it is set to
260 * @keep_link_active: indicates that the clk should not be disabled if
262 * @enabled: variable to check against multiple enable/disable
264 struct ufs_clk_info {
265 struct list_head list;
271 bool keep_link_active;
275 enum ufs_notify_change_status {
280 struct ufs_pa_layer_attr {
290 struct ufs_pwr_mode_info {
292 struct ufs_pa_layer_attr info;
296 * struct ufs_hba_variant_ops - variant specific callbacks
297 * @name: variant name
298 * @init: called when the driver is initialized
299 * @exit: called to cleanup everything done in init
300 * @get_ufs_hci_version: called to get UFS HCI version
301 * @clk_scale_notify: notifies that clks are scaled up/down
302 * @setup_clocks: called before touching any of the controller registers
303 * @hce_enable_notify: called before and after HCE enable bit is set to allow
304 * variant specific Uni-Pro initialization.
305 * @link_startup_notify: called before and after Link startup is carried out
306 * to allow variant specific Uni-Pro initialization.
307 * @pwr_change_notify: called before and after a power mode change
308 * is carried out to allow vendor spesific capabilities
310 * @setup_xfer_req: called before any transfer request is issued
312 * @setup_task_mgmt: called before any task management request is issued
314 * @hibern8_notify: called around hibern8 enter/exit
315 * @apply_dev_quirks: called to apply device specific quirks
316 * @suspend: called during host controller PM callback
317 * @resume: called during host controller PM callback
318 * @dbg_register_dump: used to dump controller debug information
319 * @phy_initialization: used to initialize phys
320 * @device_reset: called to issue a reset pulse on the UFS device
321 * @program_key: program or evict an inline encryption key
322 * @event_notify: called to notify important events
324 struct ufs_hba_variant_ops {
326 int (*init)(struct ufs_hba *);
327 void (*exit)(struct ufs_hba *);
328 u32 (*get_ufs_hci_version)(struct ufs_hba *);
329 int (*clk_scale_notify)(struct ufs_hba *, bool,
330 enum ufs_notify_change_status);
331 int (*setup_clocks)(struct ufs_hba *, bool,
332 enum ufs_notify_change_status);
333 int (*hce_enable_notify)(struct ufs_hba *,
334 enum ufs_notify_change_status);
335 int (*link_startup_notify)(struct ufs_hba *,
336 enum ufs_notify_change_status);
337 int (*pwr_change_notify)(struct ufs_hba *,
338 enum ufs_notify_change_status status,
339 struct ufs_pa_layer_attr *,
340 struct ufs_pa_layer_attr *);
341 void (*setup_xfer_req)(struct ufs_hba *hba, int tag,
343 void (*setup_task_mgmt)(struct ufs_hba *, int, u8);
344 void (*hibern8_notify)(struct ufs_hba *, enum uic_cmd_dme,
345 enum ufs_notify_change_status);
346 int (*apply_dev_quirks)(struct ufs_hba *hba);
347 void (*fixup_dev_quirks)(struct ufs_hba *hba);
348 int (*suspend)(struct ufs_hba *, enum ufs_pm_op,
349 enum ufs_notify_change_status);
350 int (*resume)(struct ufs_hba *, enum ufs_pm_op);
351 void (*dbg_register_dump)(struct ufs_hba *hba);
352 int (*phy_initialization)(struct ufs_hba *);
353 int (*device_reset)(struct ufs_hba *hba);
354 void (*config_scaling_param)(struct ufs_hba *hba,
355 struct devfreq_dev_profile *profile,
357 int (*program_key)(struct ufs_hba *hba,
358 const union ufs_crypto_cfg_entry *cfg, int slot);
359 void (*event_notify)(struct ufs_hba *hba,
360 enum ufs_event_type evt, void *data);
363 /* clock gating state */
364 enum clk_gating_state {
372 * struct ufs_clk_gating - UFS clock gating related info
373 * @gate_work: worker to turn off clocks after some delay as specified in
375 * @ungate_work: worker to turn on clocks that will be used in case of
377 * @state: the current clocks state
378 * @delay_ms: gating delay in ms
379 * @is_suspended: clk gating is suspended when set to 1 which can be used
380 * during suspend/resume
381 * @delay_attr: sysfs attribute to control delay_attr
382 * @enable_attr: sysfs attribute to enable/disable clock gating
383 * @is_enabled: Indicates the current status of clock gating
384 * @is_initialized: Indicates whether clock gating is initialized or not
385 * @active_reqs: number of requests that are pending and should be waited for
386 * completion before gating clocks.
388 struct ufs_clk_gating {
389 struct delayed_work gate_work;
390 struct work_struct ungate_work;
391 enum clk_gating_state state;
392 unsigned long delay_ms;
394 struct device_attribute delay_attr;
395 struct device_attribute enable_attr;
399 struct workqueue_struct *clk_gating_workq;
402 struct ufs_saved_pwr_info {
403 struct ufs_pa_layer_attr info;
408 * struct ufs_clk_scaling - UFS clock scaling related data
409 * @active_reqs: number of requests that are pending. If this is zero when
410 * devfreq ->target() function is called then schedule "suspend_work" to
412 * @tot_busy_t: Total busy time in current polling window
413 * @window_start_t: Start time (in jiffies) of the current polling window
414 * @busy_start_t: Start time of current busy period
415 * @enable_attr: sysfs attribute to enable/disable clock scaling
416 * @saved_pwr_info: UFS power mode may also be changed during scaling and this
417 * one keeps track of previous power mode.
418 * @workq: workqueue to schedule devfreq suspend/resume work
419 * @suspend_work: worker to suspend devfreq
420 * @resume_work: worker to resume devfreq
421 * @min_gear: lowest HS gear to scale down to
422 * @is_enabled: tracks if scaling is currently enabled or not, controlled by
423 clkscale_enable sysfs node
424 * @is_allowed: tracks if scaling is currently allowed or not, used to block
425 clock scaling which is not invoked from devfreq governor
426 * @is_initialized: Indicates whether clock scaling is initialized or not
427 * @is_busy_started: tracks if busy period has started or not
428 * @is_suspended: tracks if devfreq is suspended or not
430 struct ufs_clk_scaling {
432 unsigned long tot_busy_t;
433 ktime_t window_start_t;
434 ktime_t busy_start_t;
435 struct device_attribute enable_attr;
436 struct ufs_saved_pwr_info saved_pwr_info;
437 struct workqueue_struct *workq;
438 struct work_struct suspend_work;
439 struct work_struct resume_work;
444 bool is_busy_started;
448 #define UFS_EVENT_HIST_LENGTH 8
450 * struct ufs_event_hist - keeps history of errors
451 * @pos: index to indicate cyclic buffer position
452 * @reg: cyclic buffer for registers value
453 * @tstamp: cyclic buffer for time stamp
454 * @cnt: error counter
456 struct ufs_event_hist {
458 u32 val[UFS_EVENT_HIST_LENGTH];
459 ktime_t tstamp[UFS_EVENT_HIST_LENGTH];
460 unsigned long long cnt;
464 * struct ufs_stats - keeps usage/err statistics
465 * @last_intr_status: record the last interrupt status.
466 * @last_intr_ts: record the last interrupt timestamp.
467 * @hibern8_exit_cnt: Counter to keep track of number of exits,
468 * reset this after link-startup.
469 * @last_hibern8_exit_tstamp: Set time after the hibern8 exit.
470 * Clear after the first successful command completion.
473 u32 last_intr_status;
474 ktime_t last_intr_ts;
476 u32 hibern8_exit_cnt;
477 ktime_t last_hibern8_exit_tstamp;
478 struct ufs_event_hist event[UFS_EVT_CNT];
482 * enum ufshcd_state - UFS host controller state
483 * @UFSHCD_STATE_RESET: Link is not operational. Postpone SCSI command
485 * @UFSHCD_STATE_OPERATIONAL: The host controller is operational and can process
487 * @UFSHCD_STATE_EH_SCHEDULED_NON_FATAL: The error handler has been scheduled.
488 * SCSI commands may be submitted to the controller.
489 * @UFSHCD_STATE_EH_SCHEDULED_FATAL: The error handler has been scheduled. Fail
490 * newly submitted SCSI commands with error code DID_BAD_TARGET.
491 * @UFSHCD_STATE_ERROR: An unrecoverable error occurred, e.g. link recovery
492 * failed. Fail all SCSI commands with error code DID_ERROR.
496 UFSHCD_STATE_OPERATIONAL,
497 UFSHCD_STATE_EH_SCHEDULED_NON_FATAL,
498 UFSHCD_STATE_EH_SCHEDULED_FATAL,
503 /* Interrupt aggregation support is broken */
504 UFSHCD_QUIRK_BROKEN_INTR_AGGR = 1 << 0,
507 * delay before each dme command is required as the unipro
508 * layer has shown instabilities
510 UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS = 1 << 1,
513 * If UFS host controller is having issue in processing LCC (Line
514 * Control Command) coming from device then enable this quirk.
515 * When this quirk is enabled, host controller driver should disable
516 * the LCC transmission on UFS device (by clearing TX_LCC_ENABLE
517 * attribute of device to 0).
519 UFSHCD_QUIRK_BROKEN_LCC = 1 << 2,
522 * The attribute PA_RXHSUNTERMCAP specifies whether or not the
523 * inbound Link supports unterminated line in HS mode. Setting this
524 * attribute to 1 fixes moving to HS gear.
526 UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP = 1 << 3,
529 * This quirk needs to be enabled if the host controller only allows
530 * accessing the peer dme attributes in AUTO mode (FAST AUTO or
533 UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE = 1 << 4,
536 * This quirk needs to be enabled if the host controller doesn't
537 * advertise the correct version in UFS_VER register. If this quirk
538 * is enabled, standard UFS host driver will call the vendor specific
539 * ops (get_ufs_hci_version) to get the correct version.
541 UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION = 1 << 5,
544 * Clear handling for transfer/task request list is just opposite.
546 UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR = 1 << 6,
549 * This quirk needs to be enabled if host controller doesn't allow
550 * that the interrupt aggregation timer and counter are reset by s/w.
552 UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR = 1 << 7,
555 * This quirks needs to be enabled if host controller cannot be
556 * enabled via HCE register.
558 UFSHCI_QUIRK_BROKEN_HCE = 1 << 8,
561 * This quirk needs to be enabled if the host controller regards
562 * resolution of the values of PRDTO and PRDTL in UTRD as byte.
564 UFSHCD_QUIRK_PRDT_BYTE_GRAN = 1 << 9,
567 * This quirk needs to be enabled if the host controller reports
568 * OCS FATAL ERROR with device error through sense data
570 UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR = 1 << 10,
573 * This quirk needs to be enabled if the host controller has
574 * auto-hibernate capability but it doesn't work.
576 UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8 = 1 << 11,
579 * This quirk needs to disable manual flush for write booster
581 UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL = 1 << 12,
584 * This quirk needs to disable unipro timeout values
585 * before power mode change
587 UFSHCD_QUIRK_SKIP_DEF_UNIPRO_TIMEOUT_SETTING = 1 << 13,
590 * This quirk allows only sg entries aligned with page size.
592 UFSHCD_QUIRK_ALIGN_SG_WITH_PAGE_SIZE = 1 << 14,
595 * This quirk needs to be enabled if the host controller does not
596 * support UIC command
598 UFSHCD_QUIRK_BROKEN_UIC_CMD = 1 << 15,
601 * This quirk needs to be enabled if the host controller cannot
602 * support physical host configuration.
604 UFSHCD_QUIRK_SKIP_PH_CONFIGURATION = 1 << 16,
608 /* Allow dynamic clk gating */
609 UFSHCD_CAP_CLK_GATING = 1 << 0,
611 /* Allow hiberb8 with clk gating */
612 UFSHCD_CAP_HIBERN8_WITH_CLK_GATING = 1 << 1,
614 /* Allow dynamic clk scaling */
615 UFSHCD_CAP_CLK_SCALING = 1 << 2,
617 /* Allow auto bkops to enabled during runtime suspend */
618 UFSHCD_CAP_AUTO_BKOPS_SUSPEND = 1 << 3,
621 * This capability allows host controller driver to use the UFS HCI's
622 * interrupt aggregation capability.
623 * CAUTION: Enabling this might reduce overall UFS throughput.
625 UFSHCD_CAP_INTR_AGGR = 1 << 4,
628 * This capability allows the device auto-bkops to be always enabled
629 * except during suspend (both runtime and suspend).
630 * Enabling this capability means that device will always be allowed
631 * to do background operation when it's active but it might degrade
632 * the performance of ongoing read/write operations.
634 UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND = 1 << 5,
637 * This capability allows host controller driver to automatically
638 * enable runtime power management by itself instead of waiting
639 * for userspace to control the power management.
641 UFSHCD_CAP_RPM_AUTOSUSPEND = 1 << 6,
644 * This capability allows the host controller driver to turn-on
645 * WriteBooster, if the underlying device supports it and is
646 * provisioned to be used. This would increase the write performance.
648 UFSHCD_CAP_WB_EN = 1 << 7,
651 * This capability allows the host controller driver to use the
652 * inline crypto engine, if it is present
654 UFSHCD_CAP_CRYPTO = 1 << 8,
657 * This capability allows the controller regulators to be put into
658 * lpm mode aggressively during clock gating.
659 * This would increase power savings.
661 UFSHCD_CAP_AGGR_POWER_COLLAPSE = 1 << 9,
664 * This capability allows the host controller driver to use DeepSleep,
665 * if it is supported by the UFS device. The host controller driver must
666 * support device hardware reset via the hba->device_reset() callback,
667 * in order to exit DeepSleep state.
669 UFSHCD_CAP_DEEPSLEEP = 1 << 10,
672 * This capability allows the host controller driver to use temperature
673 * notification if it is supported by the UFS device.
675 UFSHCD_CAP_TEMP_NOTIF = 1 << 11,
678 struct ufs_hba_variant_params {
679 struct devfreq_dev_profile devfreq_profile;
680 struct devfreq_simple_ondemand_data ondemand_data;
681 u16 hba_enable_delay_us;
682 u32 wb_flush_threshold;
685 #ifdef CONFIG_SCSI_UFS_HPB
687 * struct ufshpb_dev_info - UFSHPB device related info
688 * @num_lu: the number of user logical unit to check whether all lu finished
690 * @rgn_size: device reported HPB region size
691 * @srgn_size: device reported HPB sub-region size
692 * @slave_conf_cnt: counter to check all lu finished initialization
693 * @hpb_disabled: flag to check if HPB is disabled
694 * @max_hpb_single_cmd: device reported bMAX_DATA_SIZE_FOR_SINGLE_CMD value
695 * @is_legacy: flag to check HPB 1.0
696 * @control_mode: either host or device
698 struct ufshpb_dev_info {
702 atomic_t slave_conf_cnt;
704 u8 max_hpb_single_cmd;
710 struct ufs_hba_monitor {
711 unsigned long chunk_size;
713 unsigned long nr_sec_rw[2];
714 ktime_t total_busy[2];
716 unsigned long nr_req[2];
723 ktime_t busy_start_ts[2];
730 * struct ufs_hba - per adapter private structure
731 * @mmio_base: UFSHCI base register address
732 * @ucdl_base_addr: UFS Command Descriptor base address
733 * @utrdl_base_addr: UTP Transfer Request Descriptor base address
734 * @utmrdl_base_addr: UTP Task Management Descriptor base address
735 * @ucdl_dma_addr: UFS Command Descriptor DMA address
736 * @utrdl_dma_addr: UTRDL DMA address
737 * @utmrdl_dma_addr: UTMRDL DMA address
738 * @host: Scsi_Host instance of the driver
739 * @dev: device handle
740 * @lrb: local reference block
741 * @outstanding_tasks: Bits representing outstanding task requests
742 * @outstanding_lock: Protects @outstanding_reqs.
743 * @outstanding_reqs: Bits representing outstanding transfer requests
744 * @capabilities: UFS Controller Capabilities
745 * @nutrs: Transfer Request Queue depth supported by controller
746 * @nutmrs: Task Management Queue depth supported by controller
747 * @reserved_slot: Used to submit device commands. Protected by @dev_cmd.lock.
748 * @ufs_version: UFS Version to which controller complies
749 * @vops: pointer to variant specific operations
750 * @priv: pointer to variant specific private data
751 * @irq: Irq number of the controller
752 * @active_uic_cmd: handle of active UIC command
753 * @uic_cmd_mutex: mutex for UIC command
754 * @tmf_tag_set: TMF tag set.
755 * @tmf_queue: Used to allocate TMF tags.
756 * @pwr_done: completion for power mode change
757 * @ufshcd_state: UFSHCD state
758 * @eh_flags: Error handling flags
759 * @intr_mask: Interrupt Mask Bits
760 * @ee_ctrl_mask: Exception event control mask
761 * @is_powered: flag to check if HBA is powered
762 * @shutting_down: flag to check if shutdown has been invoked
763 * @host_sem: semaphore used to serialize concurrent contexts
764 * @eh_wq: Workqueue that eh_work works on
765 * @eh_work: Worker to handle UFS errors that require s/w attention
766 * @eeh_work: Worker to handle exception events
767 * @errors: HBA errors
768 * @uic_error: UFS interconnect layer error status
769 * @saved_err: sticky error mask
770 * @saved_uic_err: sticky UIC error mask
771 * @force_reset: flag to force eh_work perform a full reset
772 * @force_pmc: flag to force a power mode change
773 * @silence_err_logs: flag to silence error logs
774 * @dev_cmd: ufs device management command information
775 * @last_dme_cmd_tstamp: time stamp of the last completed DME command
776 * @auto_bkops_enabled: to track whether bkops is enabled in device
777 * @vreg_info: UFS device voltage regulator information
778 * @clk_list_head: UFS host controller clocks list node head
779 * @pwr_info: holds current power mode
780 * @max_pwr_info: keeps the device max valid pwm
781 * @clk_scaling_lock: used to serialize device commands and clock scaling
782 * @desc_size: descriptor sizes reported by device
783 * @urgent_bkops_lvl: keeps track of urgent bkops level for device
784 * @is_urgent_bkops_lvl_checked: keeps track if the urgent bkops level for
785 * device is known or not.
786 * @scsi_block_reqs_cnt: reference counting for scsi block requests
787 * @crypto_capabilities: Content of crypto capabilities register (0x100)
788 * @crypto_cap_array: Array of crypto capabilities
789 * @crypto_cfg_register: Start of the crypto cfg array
790 * @crypto_profile: the crypto profile of this hba (if applicable)
793 void __iomem *mmio_base;
795 /* Virtual memory reference */
796 struct utp_transfer_cmd_desc *ucdl_base_addr;
797 struct utp_transfer_req_desc *utrdl_base_addr;
798 struct utp_task_req_desc *utmrdl_base_addr;
800 /* DMA memory reference */
801 dma_addr_t ucdl_dma_addr;
802 dma_addr_t utrdl_dma_addr;
803 dma_addr_t utmrdl_dma_addr;
805 struct Scsi_Host *host;
808 * This field is to keep a reference to "scsi_device" corresponding to
811 struct scsi_device *sdev_ufs_device;
813 #ifdef CONFIG_SCSI_UFS_HWMON
814 struct device *hwmon_device;
817 enum ufs_dev_pwr_mode curr_dev_pwr_mode;
818 enum uic_link_state uic_link_state;
819 /* Desired UFS power management level during runtime PM */
820 enum ufs_pm_level rpm_lvl;
821 /* Desired UFS power management level during system PM */
822 enum ufs_pm_level spm_lvl;
823 struct device_attribute rpm_lvl_attr;
824 struct device_attribute spm_lvl_attr;
825 int pm_op_in_progress;
827 /* Auto-Hibernate Idle Timer register value */
830 struct ufshcd_lrb *lrb;
832 unsigned long outstanding_tasks;
833 spinlock_t outstanding_lock;
834 unsigned long outstanding_reqs;
841 const struct ufs_hba_variant_ops *vops;
842 struct ufs_hba_variant_params *vps;
846 enum ufs_ref_clk_freq dev_ref_clk_freq;
848 unsigned int quirks; /* Deviations from standard UFSHCI spec. */
850 /* Device deviations from standard UFS device spec. */
851 unsigned int dev_quirks;
853 struct blk_mq_tag_set tmf_tag_set;
854 struct request_queue *tmf_queue;
855 struct request **tmf_rqs;
857 struct uic_command *active_uic_cmd;
858 struct mutex uic_cmd_mutex;
859 struct completion *uic_async_done;
861 enum ufshcd_state ufshcd_state;
864 u16 ee_ctrl_mask; /* Exception event mask */
865 u16 ee_drv_mask; /* Exception event mask for driver */
866 u16 ee_usr_mask; /* Exception event mask for user (via debugfs) */
867 struct mutex ee_ctrl_mutex;
870 struct semaphore host_sem;
873 struct workqueue_struct *eh_wq;
874 struct work_struct eh_work;
875 struct work_struct eeh_work;
882 struct ufs_stats ufs_stats;
885 bool silence_err_logs;
887 /* Device management request data */
888 struct ufs_dev_cmd dev_cmd;
889 ktime_t last_dme_cmd_tstamp;
892 /* Keeps information of the UFS device connected to this host */
893 struct ufs_dev_info dev_info;
894 bool auto_bkops_enabled;
895 struct ufs_vreg_info vreg_info;
896 struct list_head clk_list_head;
898 /* Number of requests aborts */
901 /* Number of lanes available (1 or 2) for Rx/Tx */
902 u32 lanes_per_direction;
903 struct ufs_pa_layer_attr pwr_info;
904 struct ufs_pwr_mode_info max_pwr_info;
906 struct ufs_clk_gating clk_gating;
907 /* Control to enable/disable host capabilities */
910 struct devfreq *devfreq;
911 struct ufs_clk_scaling clk_scaling;
912 bool is_sys_suspended;
914 enum bkops_status urgent_bkops_lvl;
915 bool is_urgent_bkops_lvl_checked;
917 struct rw_semaphore clk_scaling_lock;
918 unsigned char desc_size[QUERY_DESC_IDN_MAX];
919 atomic_t scsi_block_reqs_cnt;
921 struct device bsg_dev;
922 struct request_queue *bsg_queue;
923 struct delayed_work rpm_dev_flush_recheck_work;
925 #ifdef CONFIG_SCSI_UFS_HPB
926 struct ufshpb_dev_info ufshpb_dev;
929 struct ufs_hba_monitor monitor;
931 #ifdef CONFIG_SCSI_UFS_CRYPTO
932 union ufs_crypto_capabilities crypto_capabilities;
933 union ufs_crypto_cap_entry *crypto_cap_array;
934 u32 crypto_cfg_register;
935 struct blk_crypto_profile crypto_profile;
937 #ifdef CONFIG_DEBUG_FS
938 struct dentry *debugfs_root;
939 struct delayed_work debugfs_ee_work;
940 u32 debugfs_ee_rate_limit_ms;
946 /* Returns true if clocks can be gated. Otherwise false */
947 static inline bool ufshcd_is_clkgating_allowed(struct ufs_hba *hba)
949 return hba->caps & UFSHCD_CAP_CLK_GATING;
951 static inline bool ufshcd_can_hibern8_during_gating(struct ufs_hba *hba)
953 return hba->caps & UFSHCD_CAP_HIBERN8_WITH_CLK_GATING;
955 static inline int ufshcd_is_clkscaling_supported(struct ufs_hba *hba)
957 return hba->caps & UFSHCD_CAP_CLK_SCALING;
959 static inline bool ufshcd_can_autobkops_during_suspend(struct ufs_hba *hba)
961 return hba->caps & UFSHCD_CAP_AUTO_BKOPS_SUSPEND;
963 static inline bool ufshcd_is_rpm_autosuspend_allowed(struct ufs_hba *hba)
965 return hba->caps & UFSHCD_CAP_RPM_AUTOSUSPEND;
968 static inline bool ufshcd_is_intr_aggr_allowed(struct ufs_hba *hba)
970 return (hba->caps & UFSHCD_CAP_INTR_AGGR) &&
971 !(hba->quirks & UFSHCD_QUIRK_BROKEN_INTR_AGGR);
974 static inline bool ufshcd_can_aggressive_pc(struct ufs_hba *hba)
976 return !!(ufshcd_is_link_hibern8(hba) &&
977 (hba->caps & UFSHCD_CAP_AGGR_POWER_COLLAPSE));
980 static inline bool ufshcd_is_auto_hibern8_supported(struct ufs_hba *hba)
982 return (hba->capabilities & MASK_AUTO_HIBERN8_SUPPORT) &&
983 !(hba->quirks & UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8);
986 static inline bool ufshcd_is_auto_hibern8_enabled(struct ufs_hba *hba)
988 return FIELD_GET(UFSHCI_AHIBERN8_TIMER_MASK, hba->ahit) ? true : false;
991 static inline bool ufshcd_is_wb_allowed(struct ufs_hba *hba)
993 return hba->caps & UFSHCD_CAP_WB_EN;
996 static inline bool ufshcd_is_user_access_allowed(struct ufs_hba *hba)
998 return !hba->shutting_down;
1001 #define ufshcd_writel(hba, val, reg) \
1002 writel((val), (hba)->mmio_base + (reg))
1003 #define ufshcd_readl(hba, reg) \
1004 readl((hba)->mmio_base + (reg))
1007 * ufshcd_rmwl - read modify write into a register
1008 * @hba - per adapter instance
1009 * @mask - mask to apply on read value
1010 * @val - actual value to write
1011 * @reg - register address
1013 static inline void ufshcd_rmwl(struct ufs_hba *hba, u32 mask, u32 val, u32 reg)
1017 tmp = ufshcd_readl(hba, reg);
1019 tmp |= (val & mask);
1020 ufshcd_writel(hba, tmp, reg);
1023 int ufshcd_alloc_host(struct device *, struct ufs_hba **);
1024 void ufshcd_dealloc_host(struct ufs_hba *);
1025 int ufshcd_hba_enable(struct ufs_hba *hba);
1026 int ufshcd_init(struct ufs_hba *, void __iomem *, unsigned int);
1027 int ufshcd_link_recovery(struct ufs_hba *hba);
1028 int ufshcd_make_hba_operational(struct ufs_hba *hba);
1029 void ufshcd_remove(struct ufs_hba *);
1030 int ufshcd_uic_hibern8_enter(struct ufs_hba *hba);
1031 int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);
1032 void ufshcd_delay_us(unsigned long us, unsigned long tolerance);
1033 int ufshcd_wait_for_register(struct ufs_hba *hba, u32 reg, u32 mask,
1034 u32 val, unsigned long interval_us,
1035 unsigned long timeout_ms);
1036 void ufshcd_parse_dev_ref_clk_freq(struct ufs_hba *hba, struct clk *refclk);
1037 void ufshcd_update_evt_hist(struct ufs_hba *hba, u32 id, u32 val);
1038 void ufshcd_hba_stop(struct ufs_hba *hba);
1039 void ufshcd_schedule_eh_work(struct ufs_hba *hba);
1041 static inline void check_upiu_size(void)
1043 BUILD_BUG_ON(ALIGNED_UPIU_SIZE <
1044 GENERAL_UPIU_REQUEST_SIZE + QUERY_DESC_MAX_SIZE);
1048 * ufshcd_set_variant - set variant specific data to the hba
1049 * @hba - per adapter instance
1050 * @variant - pointer to variant specific data
1052 static inline void ufshcd_set_variant(struct ufs_hba *hba, void *variant)
1055 hba->priv = variant;
1059 * ufshcd_get_variant - get variant specific data from the hba
1060 * @hba - per adapter instance
1062 static inline void *ufshcd_get_variant(struct ufs_hba *hba)
1067 static inline bool ufshcd_keep_autobkops_enabled_except_suspend(
1068 struct ufs_hba *hba)
1070 return hba->caps & UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND;
1073 static inline u8 ufshcd_wb_get_query_index(struct ufs_hba *hba)
1075 if (hba->dev_info.wb_buffer_type == WB_BUF_MODE_LU_DEDICATED)
1076 return hba->dev_info.wb_dedicated_lu;
1080 #ifdef CONFIG_SCSI_UFS_HWMON
1081 void ufs_hwmon_probe(struct ufs_hba *hba, u8 mask);
1082 void ufs_hwmon_remove(struct ufs_hba *hba);
1083 void ufs_hwmon_notify_event(struct ufs_hba *hba, u8 ee_mask);
1085 static inline void ufs_hwmon_probe(struct ufs_hba *hba, u8 mask) {}
1086 static inline void ufs_hwmon_remove(struct ufs_hba *hba) {}
1087 static inline void ufs_hwmon_notify_event(struct ufs_hba *hba, u8 ee_mask) {}
1091 extern int ufshcd_runtime_suspend(struct device *dev);
1092 extern int ufshcd_runtime_resume(struct device *dev);
1094 #ifdef CONFIG_PM_SLEEP
1095 extern int ufshcd_system_suspend(struct device *dev);
1096 extern int ufshcd_system_resume(struct device *dev);
1098 extern int ufshcd_shutdown(struct ufs_hba *hba);
1099 extern int ufshcd_dme_configure_adapt(struct ufs_hba *hba,
1102 extern int ufshcd_dme_set_attr(struct ufs_hba *hba, u32 attr_sel,
1103 u8 attr_set, u32 mib_val, u8 peer);
1104 extern int ufshcd_dme_get_attr(struct ufs_hba *hba, u32 attr_sel,
1105 u32 *mib_val, u8 peer);
1106 extern int ufshcd_config_pwr_mode(struct ufs_hba *hba,
1107 struct ufs_pa_layer_attr *desired_pwr_mode);
1109 /* UIC command interfaces for DME primitives */
1112 #define ATTR_SET_NOR 0 /* NORMAL */
1113 #define ATTR_SET_ST 1 /* STATIC */
1115 static inline int ufshcd_dme_set(struct ufs_hba *hba, u32 attr_sel,
1118 return ufshcd_dme_set_attr(hba, attr_sel, ATTR_SET_NOR,
1119 mib_val, DME_LOCAL);
1122 static inline int ufshcd_dme_st_set(struct ufs_hba *hba, u32 attr_sel,
1125 return ufshcd_dme_set_attr(hba, attr_sel, ATTR_SET_ST,
1126 mib_val, DME_LOCAL);
1129 static inline int ufshcd_dme_peer_set(struct ufs_hba *hba, u32 attr_sel,
1132 return ufshcd_dme_set_attr(hba, attr_sel, ATTR_SET_NOR,
1136 static inline int ufshcd_dme_peer_st_set(struct ufs_hba *hba, u32 attr_sel,
1139 return ufshcd_dme_set_attr(hba, attr_sel, ATTR_SET_ST,
1143 static inline int ufshcd_dme_get(struct ufs_hba *hba,
1144 u32 attr_sel, u32 *mib_val)
1146 return ufshcd_dme_get_attr(hba, attr_sel, mib_val, DME_LOCAL);
1149 static inline int ufshcd_dme_peer_get(struct ufs_hba *hba,
1150 u32 attr_sel, u32 *mib_val)
1152 return ufshcd_dme_get_attr(hba, attr_sel, mib_val, DME_PEER);
1155 static inline bool ufshcd_is_hs_mode(struct ufs_pa_layer_attr *pwr_info)
1157 return (pwr_info->pwr_rx == FAST_MODE ||
1158 pwr_info->pwr_rx == FASTAUTO_MODE) &&
1159 (pwr_info->pwr_tx == FAST_MODE ||
1160 pwr_info->pwr_tx == FASTAUTO_MODE);
1163 static inline int ufshcd_disable_host_tx_lcc(struct ufs_hba *hba)
1165 return ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0);
1168 /* Expose Query-Request API */
1169 int ufshcd_query_descriptor_retry(struct ufs_hba *hba,
1170 enum query_opcode opcode,
1171 enum desc_idn idn, u8 index,
1173 u8 *desc_buf, int *buf_len);
1174 int ufshcd_read_desc_param(struct ufs_hba *hba,
1175 enum desc_idn desc_id,
1180 int ufshcd_query_attr_retry(struct ufs_hba *hba, enum query_opcode opcode,
1181 enum attr_idn idn, u8 index, u8 selector,
1183 int ufshcd_query_attr(struct ufs_hba *hba, enum query_opcode opcode,
1184 enum attr_idn idn, u8 index, u8 selector, u32 *attr_val);
1185 int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode,
1186 enum flag_idn idn, u8 index, bool *flag_res);
1188 void ufshcd_auto_hibern8_enable(struct ufs_hba *hba);
1189 void ufshcd_auto_hibern8_update(struct ufs_hba *hba, u32 ahit);
1190 void ufshcd_fixup_dev_quirks(struct ufs_hba *hba, struct ufs_dev_fix *fixups);
1191 #define SD_ASCII_STD true
1192 #define SD_RAW false
1193 int ufshcd_read_string_desc(struct ufs_hba *hba, u8 desc_index,
1194 u8 **buf, bool ascii);
1196 int ufshcd_hold(struct ufs_hba *hba, bool async);
1197 void ufshcd_release(struct ufs_hba *hba);
1199 void ufshcd_map_desc_id_to_length(struct ufs_hba *hba, enum desc_idn desc_id,
1202 u32 ufshcd_get_local_unipro_ver(struct ufs_hba *hba);
1204 int ufshcd_send_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd);
1206 int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba,
1207 struct utp_upiu_req *req_upiu,
1208 struct utp_upiu_req *rsp_upiu,
1210 u8 *desc_buff, int *buff_len,
1211 enum query_opcode desc_op);
1213 int ufshcd_wb_toggle(struct ufs_hba *hba, bool enable);
1214 int ufshcd_suspend_prepare(struct device *dev);
1215 int __ufshcd_suspend_prepare(struct device *dev, bool rpm_ok_for_spm);
1216 void ufshcd_resume_complete(struct device *dev);
1218 /* Wrapper functions for safely calling variant operations */
1219 static inline const char *ufshcd_get_var_name(struct ufs_hba *hba)
1222 return hba->vops->name;
1226 static inline int ufshcd_vops_init(struct ufs_hba *hba)
1228 if (hba->vops && hba->vops->init)
1229 return hba->vops->init(hba);
1234 static inline void ufshcd_vops_exit(struct ufs_hba *hba)
1236 if (hba->vops && hba->vops->exit)
1237 return hba->vops->exit(hba);
1240 static inline u32 ufshcd_vops_get_ufs_hci_version(struct ufs_hba *hba)
1242 if (hba->vops && hba->vops->get_ufs_hci_version)
1243 return hba->vops->get_ufs_hci_version(hba);
1245 return ufshcd_readl(hba, REG_UFS_VERSION);
1248 static inline int ufshcd_vops_clk_scale_notify(struct ufs_hba *hba,
1249 bool up, enum ufs_notify_change_status status)
1251 if (hba->vops && hba->vops->clk_scale_notify)
1252 return hba->vops->clk_scale_notify(hba, up, status);
1256 static inline void ufshcd_vops_event_notify(struct ufs_hba *hba,
1257 enum ufs_event_type evt,
1260 if (hba->vops && hba->vops->event_notify)
1261 hba->vops->event_notify(hba, evt, data);
1264 static inline int ufshcd_vops_setup_clocks(struct ufs_hba *hba, bool on,
1265 enum ufs_notify_change_status status)
1267 if (hba->vops && hba->vops->setup_clocks)
1268 return hba->vops->setup_clocks(hba, on, status);
1272 static inline int ufshcd_vops_hce_enable_notify(struct ufs_hba *hba,
1275 if (hba->vops && hba->vops->hce_enable_notify)
1276 return hba->vops->hce_enable_notify(hba, status);
1280 static inline int ufshcd_vops_link_startup_notify(struct ufs_hba *hba,
1283 if (hba->vops && hba->vops->link_startup_notify)
1284 return hba->vops->link_startup_notify(hba, status);
1289 static inline int ufshcd_vops_phy_initialization(struct ufs_hba *hba)
1291 if (hba->vops && hba->vops->phy_initialization)
1292 return hba->vops->phy_initialization(hba);
1297 static inline int ufshcd_vops_pwr_change_notify(struct ufs_hba *hba,
1298 enum ufs_notify_change_status status,
1299 struct ufs_pa_layer_attr *dev_max_params,
1300 struct ufs_pa_layer_attr *dev_req_params)
1302 if (hba->vops && hba->vops->pwr_change_notify)
1303 return hba->vops->pwr_change_notify(hba, status,
1304 dev_max_params, dev_req_params);
1309 static inline void ufshcd_vops_setup_task_mgmt(struct ufs_hba *hba,
1310 int tag, u8 tm_function)
1312 if (hba->vops && hba->vops->setup_task_mgmt)
1313 return hba->vops->setup_task_mgmt(hba, tag, tm_function);
1316 static inline void ufshcd_vops_hibern8_notify(struct ufs_hba *hba,
1317 enum uic_cmd_dme cmd,
1318 enum ufs_notify_change_status status)
1320 if (hba->vops && hba->vops->hibern8_notify)
1321 return hba->vops->hibern8_notify(hba, cmd, status);
1324 static inline int ufshcd_vops_apply_dev_quirks(struct ufs_hba *hba)
1326 if (hba->vops && hba->vops->apply_dev_quirks)
1327 return hba->vops->apply_dev_quirks(hba);
1331 static inline void ufshcd_vops_fixup_dev_quirks(struct ufs_hba *hba)
1333 if (hba->vops && hba->vops->fixup_dev_quirks)
1334 hba->vops->fixup_dev_quirks(hba);
1337 static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum ufs_pm_op op,
1338 enum ufs_notify_change_status status)
1340 if (hba->vops && hba->vops->suspend)
1341 return hba->vops->suspend(hba, op, status);
1346 static inline int ufshcd_vops_resume(struct ufs_hba *hba, enum ufs_pm_op op)
1348 if (hba->vops && hba->vops->resume)
1349 return hba->vops->resume(hba, op);
1354 static inline void ufshcd_vops_dbg_register_dump(struct ufs_hba *hba)
1356 if (hba->vops && hba->vops->dbg_register_dump)
1357 hba->vops->dbg_register_dump(hba);
1360 static inline int ufshcd_vops_device_reset(struct ufs_hba *hba)
1362 if (hba->vops && hba->vops->device_reset)
1363 return hba->vops->device_reset(hba);
1368 static inline void ufshcd_vops_config_scaling_param(struct ufs_hba *hba,
1369 struct devfreq_dev_profile
1370 *profile, void *data)
1372 if (hba->vops && hba->vops->config_scaling_param)
1373 hba->vops->config_scaling_param(hba, profile, data);
1376 extern struct ufs_pm_lvl_states ufs_pm_lvl_states[];
1379 * ufshcd_scsi_to_upiu_lun - maps scsi LUN to UPIU LUN
1380 * @scsi_lun: scsi LUN id
1382 * Returns UPIU LUN id
1384 static inline u8 ufshcd_scsi_to_upiu_lun(unsigned int scsi_lun)
1386 if (scsi_is_wlun(scsi_lun))
1387 return (scsi_lun & UFS_UPIU_MAX_UNIT_NUM_ID)
1390 return scsi_lun & UFS_UPIU_MAX_UNIT_NUM_ID;
1393 int ufshcd_dump_regs(struct ufs_hba *hba, size_t offset, size_t len,
1394 const char *prefix);
1396 int __ufshcd_write_ee_control(struct ufs_hba *hba, u32 ee_ctrl_mask);
1397 int ufshcd_write_ee_control(struct ufs_hba *hba);
1398 int ufshcd_update_ee_control(struct ufs_hba *hba, u16 *mask, u16 *other_mask,
1401 static inline int ufshcd_update_ee_drv_mask(struct ufs_hba *hba,
1404 return ufshcd_update_ee_control(hba, &hba->ee_drv_mask,
1405 &hba->ee_usr_mask, set, clr);
1408 static inline int ufshcd_update_ee_usr_mask(struct ufs_hba *hba,
1411 return ufshcd_update_ee_control(hba, &hba->ee_usr_mask,
1412 &hba->ee_drv_mask, set, clr);
1415 static inline int ufshcd_rpm_get_sync(struct ufs_hba *hba)
1417 return pm_runtime_get_sync(&hba->sdev_ufs_device->sdev_gendev);
1420 static inline int ufshcd_rpm_put_sync(struct ufs_hba *hba)
1422 return pm_runtime_put_sync(&hba->sdev_ufs_device->sdev_gendev);
1425 static inline void ufshcd_rpm_get_noresume(struct ufs_hba *hba)
1427 pm_runtime_get_noresume(&hba->sdev_ufs_device->sdev_gendev);
1430 static inline int ufshcd_rpm_resume(struct ufs_hba *hba)
1432 return pm_runtime_resume(&hba->sdev_ufs_device->sdev_gendev);
1435 static inline int ufshcd_rpm_put(struct ufs_hba *hba)
1437 return pm_runtime_put(&hba->sdev_ufs_device->sdev_gendev);
1440 #endif /* End of Header */