diff options
Diffstat (limited to 'drivers/ufs/core/ufshcd-priv.h')
| -rw-r--r-- | drivers/ufs/core/ufshcd-priv.h | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/drivers/ufs/core/ufshcd-priv.h b/drivers/ufs/core/ufshcd-priv.h new file mode 100644 index 000000000000..ffb01fc6de75 --- /dev/null +++ b/drivers/ufs/core/ufshcd-priv.h @@ -0,0 +1,298 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#ifndef _UFSHCD_PRIV_H_ +#define _UFSHCD_PRIV_H_ + +#include <linux/pm_runtime.h> +#include <ufs/ufshcd.h> + +static inline bool ufshcd_is_user_access_allowed(struct ufs_hba *hba) +{ + return !hba->shutting_down; +} + +void ufshcd_schedule_eh_work(struct ufs_hba *hba); + +static inline bool ufshcd_keep_autobkops_enabled_except_suspend( + struct ufs_hba *hba) +{ + return hba->caps & UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND; +} + +static inline u8 ufshcd_wb_get_query_index(struct ufs_hba *hba) +{ + if (hba->dev_info.wb_buffer_type == WB_BUF_MODE_LU_DEDICATED) + return hba->dev_info.wb_dedicated_lu; + return 0; +} + +#ifdef CONFIG_SCSI_UFS_HWMON +void ufs_hwmon_probe(struct ufs_hba *hba, u8 mask); +void ufs_hwmon_remove(struct ufs_hba *hba); +void ufs_hwmon_notify_event(struct ufs_hba *hba, u8 ee_mask); +#else +static inline void ufs_hwmon_probe(struct ufs_hba *hba, u8 mask) {} +static inline void ufs_hwmon_remove(struct ufs_hba *hba) {} +static inline void ufs_hwmon_notify_event(struct ufs_hba *hba, u8 ee_mask) {} +#endif + +int ufshcd_read_desc_param(struct ufs_hba *hba, + enum desc_idn desc_id, + int desc_index, + u8 param_offset, + u8 *param_read_buf, + u8 param_size); +int ufshcd_query_attr_retry(struct ufs_hba *hba, enum query_opcode opcode, + enum attr_idn idn, u8 index, u8 selector, + u32 *attr_val); +int ufshcd_query_attr(struct ufs_hba *hba, enum query_opcode opcode, + enum attr_idn idn, u8 index, u8 selector, u32 *attr_val); +int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode, + enum flag_idn idn, u8 index, bool *flag_res); +void ufshcd_auto_hibern8_update(struct ufs_hba *hba, u32 ahit); + +#define SD_ASCII_STD true +#define SD_RAW false +int ufshcd_read_string_desc(struct ufs_hba *hba, u8 desc_index, + u8 **buf, bool ascii); + +int ufshcd_hold(struct ufs_hba *hba, bool async); +void ufshcd_release(struct ufs_hba *hba); + +void ufshcd_map_desc_id_to_length(struct ufs_hba *hba, enum desc_idn desc_id, + int *desc_length); + +int ufshcd_send_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd); + +int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba, + struct utp_upiu_req *req_upiu, + struct utp_upiu_req *rsp_upiu, + int msgcode, + u8 *desc_buff, int *buff_len, + enum query_opcode desc_op); + +int ufshcd_wb_toggle(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) +{ + if (hba->vops) + return hba->vops->name; + return ""; +} + +static inline void ufshcd_vops_exit(struct ufs_hba *hba) +{ + if (hba->vops && hba->vops->exit) + return hba->vops->exit(hba); +} + +static inline u32 ufshcd_vops_get_ufs_hci_version(struct ufs_hba *hba) +{ + if (hba->vops && hba->vops->get_ufs_hci_version) + return hba->vops->get_ufs_hci_version(hba); + + return ufshcd_readl(hba, REG_UFS_VERSION); +} + +static inline int ufshcd_vops_clk_scale_notify(struct ufs_hba *hba, + bool up, enum ufs_notify_change_status status) +{ + if (hba->vops && hba->vops->clk_scale_notify) + return hba->vops->clk_scale_notify(hba, up, status); + return 0; +} + +static inline void ufshcd_vops_event_notify(struct ufs_hba *hba, + enum ufs_event_type evt, + void *data) +{ + if (hba->vops && hba->vops->event_notify) + hba->vops->event_notify(hba, evt, data); +} + +static inline int ufshcd_vops_setup_clocks(struct ufs_hba *hba, bool on, + enum ufs_notify_change_status status) +{ + if (hba->vops && hba->vops->setup_clocks) + return hba->vops->setup_clocks(hba, on, status); + return 0; +} + +static inline int ufshcd_vops_hce_enable_notify(struct ufs_hba *hba, + bool status) +{ + if (hba->vops && hba->vops->hce_enable_notify) + return hba->vops->hce_enable_notify(hba, status); + + return 0; +} +static inline int ufshcd_vops_link_startup_notify(struct ufs_hba *hba, + bool status) +{ + if (hba->vops && hba->vops->link_startup_notify) + return hba->vops->link_startup_notify(hba, status); + + return 0; +} + +static inline int ufshcd_vops_pwr_change_notify(struct ufs_hba *hba, + enum ufs_notify_change_status status, + struct ufs_pa_layer_attr *dev_max_params, + struct ufs_pa_layer_attr *dev_req_params) +{ + if (hba->vops && hba->vops->pwr_change_notify) + return hba->vops->pwr_change_notify(hba, status, + dev_max_params, dev_req_params); + + return -ENOTSUPP; +} + +static inline void ufshcd_vops_setup_task_mgmt(struct ufs_hba *hba, + int tag, u8 tm_function) +{ + if (hba->vops && hba->vops->setup_task_mgmt) + return hba->vops->setup_task_mgmt(hba, tag, tm_function); +} + +static inline void ufshcd_vops_hibern8_notify(struct ufs_hba *hba, + enum uic_cmd_dme cmd, + enum ufs_notify_change_status status) +{ + if (hba->vops && hba->vops->hibern8_notify) + return hba->vops->hibern8_notify(hba, cmd, status); +} + +static inline int ufshcd_vops_apply_dev_quirks(struct ufs_hba *hba) +{ + if (hba->vops && hba->vops->apply_dev_quirks) + return hba->vops->apply_dev_quirks(hba); + return 0; +} + +static inline void ufshcd_vops_fixup_dev_quirks(struct ufs_hba *hba) +{ + if (hba->vops && hba->vops->fixup_dev_quirks) + hba->vops->fixup_dev_quirks(hba); +} + +static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum ufs_pm_op op, + enum ufs_notify_change_status status) +{ + if (hba->vops && hba->vops->suspend) + return hba->vops->suspend(hba, op, status); + + return 0; +} + +static inline int ufshcd_vops_resume(struct ufs_hba *hba, enum ufs_pm_op op) +{ + if (hba->vops && hba->vops->resume) + return hba->vops->resume(hba, op); + + return 0; +} + +static inline void ufshcd_vops_dbg_register_dump(struct ufs_hba *hba) +{ + if (hba->vops && hba->vops->dbg_register_dump) + hba->vops->dbg_register_dump(hba); +} + +static inline int ufshcd_vops_device_reset(struct ufs_hba *hba) +{ + 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, + struct devfreq_dev_profile *p, + struct devfreq_simple_ondemand_data *data) +{ + if (hba->vops && hba->vops->config_scaling_param) + hba->vops->config_scaling_param(hba, p, data); +} + +extern struct ufs_pm_lvl_states ufs_pm_lvl_states[]; + +/** + * ufshcd_scsi_to_upiu_lun - maps scsi LUN to UPIU LUN + * @scsi_lun: scsi LUN id + * + * Returns UPIU LUN id + */ +static inline u8 ufshcd_scsi_to_upiu_lun(unsigned int scsi_lun) +{ + if (scsi_is_wlun(scsi_lun)) + return (scsi_lun & UFS_UPIU_MAX_UNIT_NUM_ID) + | UFS_UPIU_WLUN_ID; + else + return scsi_lun & UFS_UPIU_MAX_UNIT_NUM_ID; +} + +int __ufshcd_write_ee_control(struct ufs_hba *hba, u32 ee_ctrl_mask); +int ufshcd_write_ee_control(struct ufs_hba *hba); +int ufshcd_update_ee_control(struct ufs_hba *hba, u16 *mask, u16 *other_mask, + u16 set, u16 clr); + +static inline int ufshcd_update_ee_drv_mask(struct ufs_hba *hba, + u16 set, u16 clr) +{ + return ufshcd_update_ee_control(hba, &hba->ee_drv_mask, + &hba->ee_usr_mask, set, clr); +} + +static inline int ufshcd_update_ee_usr_mask(struct ufs_hba *hba, + u16 set, u16 clr) +{ + return ufshcd_update_ee_control(hba, &hba->ee_usr_mask, + &hba->ee_drv_mask, set, clr); +} + +static inline int ufshcd_rpm_get_sync(struct ufs_hba *hba) +{ + return pm_runtime_get_sync(&hba->ufs_device_wlun->sdev_gendev); +} + +static inline int ufshcd_rpm_put_sync(struct ufs_hba *hba) +{ + return pm_runtime_put_sync(&hba->ufs_device_wlun->sdev_gendev); +} + +static inline void ufshcd_rpm_get_noresume(struct ufs_hba *hba) +{ + pm_runtime_get_noresume(&hba->ufs_device_wlun->sdev_gendev); +} + +static inline int ufshcd_rpm_resume(struct ufs_hba *hba) +{ + return pm_runtime_resume(&hba->ufs_device_wlun->sdev_gendev); +} + +static inline int ufshcd_rpm_put(struct ufs_hba *hba) +{ + return pm_runtime_put(&hba->ufs_device_wlun->sdev_gendev); +} + +/** + * ufs_is_valid_unit_desc_lun - checks if the given LUN has a unit descriptor + * @dev_info: pointer of instance of struct ufs_dev_info + * @lun: LU number to check + * @return: true if the lun has a matching unit descriptor, false otherwise + */ +static inline bool ufs_is_valid_unit_desc_lun(struct ufs_dev_info *dev_info, + u8 lun, u8 param_offset) +{ + if (!dev_info || !dev_info->max_lu_supported) { + pr_err("Max General LU supported by UFS isn't initialized\n"); + return false; + } + /* WB is available only for the logical unit from 0 to 7 */ + if (param_offset == UNIT_DESC_PARAM_WB_BUF_ALLOC_UNITS) + return lun < UFS_UPIU_MAX_WB_LUN_ID; + return lun == UFS_UPIU_RPMB_WLUN || (lun < dev_info->max_lu_supported); +} + +#endif /* _UFSHCD_PRIV_H_ */ |