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