18 /* @file corresponds to a debugfs attribute in directory hba->debugfs_root. */
36 	struct ufs_hba *hba = hba_from_file(s->file);  in ufs_debugfs_stats_show()  local
37 	struct ufs_event_hist *e = hba->ufs_stats.event;  in ufs_debugfs_stats_show()
62 	struct ufs_hba *hba = data;  in ee_usr_mask_get()  local
64 	*val = hba->ee_usr_mask;  in ee_usr_mask_get()
68 static int ufs_debugfs_get_user_access(struct ufs_hba *hba)  in ufs_debugfs_get_user_access()  argument
69 __acquires(&hba->host_sem)  in ufs_debugfs_get_user_access()
71 	down(&hba->host_sem);  in ufs_debugfs_get_user_access()
72 	if (!ufshcd_is_user_access_allowed(hba)) {  in ufs_debugfs_get_user_access()
73 		up(&hba->host_sem);  in ufs_debugfs_get_user_access()
76 	ufshcd_rpm_get_sync(hba);  in ufs_debugfs_get_user_access()
80 static void ufs_debugfs_put_user_access(struct ufs_hba *hba)  in ufs_debugfs_put_user_access()  argument
81 __releases(&hba->host_sem)  in ufs_debugfs_put_user_access()
83 	ufshcd_rpm_put_sync(hba);  in ufs_debugfs_put_user_access()
84 	up(&hba->host_sem);  in ufs_debugfs_put_user_access()
89 	struct ufs_hba *hba = data;  in ee_usr_mask_set()  local
94 	err = ufs_debugfs_get_user_access(hba);  in ee_usr_mask_set()
97 	err = ufshcd_update_ee_usr_mask(hba, val, MASK_EE_STATUS);  in ee_usr_mask_set()
98 	ufs_debugfs_put_user_access(hba);  in ee_usr_mask_set()
104 void ufs_debugfs_exception_event(struct ufs_hba *hba, u16 status)  in ufs_debugfs_exception_event()  argument
110 	if (!hba->debugfs_ee_rate_limit_ms || !status)  in ufs_debugfs_exception_event()
113 	mutex_lock(&hba->ee_ctrl_mutex);  in ufs_debugfs_exception_event()
114 	ee_ctrl_mask = hba->ee_drv_mask | (hba->ee_usr_mask & ~status);  in ufs_debugfs_exception_event()
115 	chgd = ee_ctrl_mask != hba->ee_ctrl_mask;  in ufs_debugfs_exception_event()
117 		err = __ufshcd_write_ee_control(hba, ee_ctrl_mask);  in ufs_debugfs_exception_event()
119 			dev_err(hba->dev, "%s: failed to write ee control %d\n",  in ufs_debugfs_exception_event()
122 	mutex_unlock(&hba->ee_ctrl_mutex);  in ufs_debugfs_exception_event()
125 		unsigned long delay = msecs_to_jiffies(hba->debugfs_ee_rate_limit_ms);  in ufs_debugfs_exception_event()
127 		queue_delayed_work(system_freezable_wq, &hba->debugfs_ee_work, delay);  in ufs_debugfs_exception_event()
133 	struct ufs_hba *hba = container_of(work, struct ufs_hba, debugfs_ee_work.work);  in ufs_debugfs_restart_ee()  local
135 	if (!hba->ee_usr_mask || pm_runtime_suspended(hba->dev) ||  in ufs_debugfs_restart_ee()
136 	    ufs_debugfs_get_user_access(hba))  in ufs_debugfs_restart_ee()
138 	ufshcd_write_ee_control(hba);  in ufs_debugfs_restart_ee()
139 	ufs_debugfs_put_user_access(hba);  in ufs_debugfs_restart_ee()
145 	struct ufs_hba *hba = hba_from_file(s->file);  in ufs_saved_err_show()  local
149 		p = &hba->saved_err;  in ufs_saved_err_show()
151 		p = &hba->saved_uic_err;  in ufs_saved_err_show()
164 	struct ufs_hba *hba = hba_from_file(file);  in ufs_saved_err_write()  local
176 	spin_lock_irq(hba->host->host_lock);  in ufs_saved_err_write()
178 		hba->saved_err = val;  in ufs_saved_err_write()
180 		hba->saved_uic_err = val;  in ufs_saved_err_write()
185 		ufshcd_schedule_eh_work(hba);  in ufs_saved_err_write()
186 	spin_unlock_irq(hba->host->host_lock);  in ufs_saved_err_write()
212 void ufs_debugfs_hba_init(struct ufs_hba *hba)  in ufs_debugfs_hba_init()  argument
218 	hba->debugfs_ee_rate_limit_ms = 20;  in ufs_debugfs_hba_init()
219 	INIT_DELAYED_WORK(&hba->debugfs_ee_work, ufs_debugfs_restart_ee);  in ufs_debugfs_hba_init()
221 	root = debugfs_create_dir(dev_name(hba->dev), ufs_debugfs_root);  in ufs_debugfs_hba_init()
224 	hba->debugfs_root = root;  in ufs_debugfs_hba_init()
225 	d_inode(root)->i_private = hba;  in ufs_debugfs_hba_init()
229 	debugfs_create_file("exception_event_mask", 0600, hba->debugfs_root,  in ufs_debugfs_hba_init()
230 			    hba, &ee_usr_mask_fops);  in ufs_debugfs_hba_init()
231 	debugfs_create_u32("exception_event_rate_limit_ms", 0600, hba->debugfs_root,  in ufs_debugfs_hba_init()
232 			   &hba->debugfs_ee_rate_limit_ms);  in ufs_debugfs_hba_init()
235 void ufs_debugfs_hba_exit(struct ufs_hba *hba)  in ufs_debugfs_hba_exit()  argument
237 	debugfs_remove_recursive(hba->debugfs_root);  in ufs_debugfs_hba_exit()
238 	cancel_delayed_work_sync(&hba->debugfs_ee_work);  in ufs_debugfs_hba_exit()