diff options
Diffstat (limited to 'drivers/scsi/ufs/ufshcd.h')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.h | 55 |
1 files changed, 41 insertions, 14 deletions
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index f8c2467dc014..ee61f821f75d 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -383,6 +383,7 @@ enum clk_gating_state { * @delay_attr: sysfs attribute to control delay_attr * @enable_attr: sysfs attribute to enable/disable clock gating * @is_enabled: Indicates the current status of clock gating + * @is_initialized: Indicates whether clock gating is initialized or not * @active_reqs: number of requests that are pending and should be waited for * completion before gating clocks. */ @@ -395,6 +396,7 @@ struct ufs_clk_gating { struct device_attribute delay_attr; struct device_attribute enable_attr; bool is_enabled; + bool is_initialized; int active_reqs; struct workqueue_struct *clk_gating_workq; }; @@ -419,7 +421,11 @@ struct ufs_saved_pwr_info { * @suspend_work: worker to suspend devfreq * @resume_work: worker to resume devfreq * @min_gear: lowest HS gear to scale down to - * @is_allowed: tracks if scaling is currently allowed or not + * @is_enabled: tracks if scaling is currently enabled or not, controlled by + clkscale_enable sysfs node + * @is_allowed: tracks if scaling is currently allowed or not, used to block + clock scaling which is not invoked from devfreq governor + * @is_initialized: Indicates whether clock scaling is initialized or not * @is_busy_started: tracks if busy period has started or not * @is_suspended: tracks if devfreq is suspended or not */ @@ -434,7 +440,9 @@ struct ufs_clk_scaling { struct work_struct suspend_work; struct work_struct resume_work; u32 min_gear; + bool is_enabled; bool is_allowed; + bool is_initialized; bool is_busy_started; bool is_suspended; }; @@ -445,11 +453,13 @@ struct ufs_clk_scaling { * @pos: index to indicate cyclic buffer position * @reg: cyclic buffer for registers value * @tstamp: cyclic buffer for time stamp + * @cnt: error counter */ struct ufs_event_hist { int pos; u32 val[UFS_EVENT_HIST_LENGTH]; ktime_t tstamp[UFS_EVENT_HIST_LENGTH]; + unsigned long long cnt; }; /** @@ -551,6 +561,16 @@ enum ufshcd_quirks { */ UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL = 1 << 12, + /* + * This quirk needs to disable unipro timeout values + * before power mode change + */ + UFSHCD_QUIRK_SKIP_DEF_UNIPRO_TIMEOUT_SETTING = 1 << 13, + + /* + * This quirk allows only sg entries aligned with page size. + */ + UFSHCD_QUIRK_ALIGN_SG_WITH_PAGE_SIZE = 1 << 13, }; enum ufshcd_caps { @@ -657,6 +677,8 @@ struct ufs_hba_variant_params { * @intr_mask: Interrupt Mask Bits * @ee_ctrl_mask: Exception event control mask * @is_powered: flag to check if HBA is powered + * @shutting_down: flag to check if shutdown has been invoked + * @host_sem: semaphore used to serialize concurrent contexts * @eh_wq: Workqueue that eh_work works on * @eh_work: Worker to handle UFS errors that require s/w attention * @eeh_work: Worker to handle exception events @@ -753,7 +775,8 @@ struct ufs_hba { u32 intr_mask; u16 ee_ctrl_mask; bool is_powered; - struct semaphore eh_sem; + bool shutting_down; + struct semaphore host_sem; /* Work Queues */ struct workqueue_struct *eh_wq; @@ -807,8 +830,6 @@ struct ufs_hba { struct device bsg_dev; struct request_queue *bsg_queue; - bool wb_buf_flush_enabled; - bool wb_enabled; struct delayed_work rpm_dev_flush_recheck_work; #ifdef CONFIG_SCSI_UFS_CRYPTO @@ -817,6 +838,9 @@ struct ufs_hba { u32 crypto_cfg_register; struct blk_keyslot_manager ksm; #endif +#ifdef CONFIG_DEBUG_FS + struct dentry *debugfs_root; +#endif }; /* Returns true if clocks can be gated. Otherwise false */ @@ -877,6 +901,11 @@ static inline bool ufshcd_is_wb_allowed(struct ufs_hba *hba) return hba->caps & UFSHCD_CAP_WB_EN; } +static inline bool ufshcd_is_user_access_allowed(struct ufs_hba *hba) +{ + return !hba->shutting_down; +} + #define ufshcd_writel(hba, val, reg) \ writel((val), (hba)->mmio_base + (reg)) #define ufshcd_readl(hba, reg) \ @@ -948,7 +977,7 @@ static inline bool ufshcd_keep_autobkops_enabled_except_suspend( static inline u8 ufshcd_wb_get_query_index(struct ufs_hba *hba) { - if (hba->dev_info.b_wb_buffer_type == WB_BUF_MODE_LU_DEDICATED) + if (hba->dev_info.wb_buffer_type == WB_BUF_MODE_LU_DEDICATED) return hba->dev_info.wb_dedicated_lu; return 0; } @@ -1070,6 +1099,8 @@ int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba, u8 *desc_buff, int *buff_len, enum query_opcode desc_op); +int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable); + /* Wrapper functions for safely calling variant operations */ static inline const char *ufshcd_get_var_name(struct ufs_hba *hba) { @@ -1218,16 +1249,12 @@ static inline void ufshcd_vops_dbg_register_dump(struct ufs_hba *hba) hba->vops->dbg_register_dump(hba); } -static inline void ufshcd_vops_device_reset(struct ufs_hba *hba) +static inline int ufshcd_vops_device_reset(struct ufs_hba *hba) { - if (hba->vops && hba->vops->device_reset) { - int err = hba->vops->device_reset(hba); - - if (!err) - ufshcd_set_ufs_dev_active(hba); - if (err != -EOPNOTSUPP) - ufshcd_update_evt_hist(hba, UFS_EVT_DEV_RESET, err); - } + if (hba->vops && hba->vops->device_reset) + return hba->vops->device_reset(hba); + + return -EOPNOTSUPP; } static inline void ufshcd_vops_config_scaling_param(struct ufs_hba *hba, |