1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
|
/* 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;
}
static inline bool ufshcd_is_wb_buf_flush_allowed(struct ufs_hba *hba)
{
return ufshcd_is_wb_allowed(hba) &&
!(hba->quirks & UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL);
}
#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_query_descriptor_retry(struct ufs_hba *hba,
enum query_opcode opcode,
enum desc_idn idn, u8 index,
u8 selector,
u8 *desc_buf, int *buf_len);
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);
void ufshcd_compl_one_cqe(struct ufs_hba *hba, int task_tag,
struct cq_entry *cqe);
int ufshcd_mcq_init(struct ufs_hba *hba);
void ufshcd_mcq_disable(struct ufs_hba *hba);
int ufshcd_mcq_decide_queue_depth(struct ufs_hba *hba);
int ufshcd_mcq_memory_alloc(struct ufs_hba *hba);
struct ufs_hw_queue *ufshcd_mcq_req_to_hwq(struct ufs_hba *hba,
struct request *req);
void ufshcd_mcq_compl_all_cqes_lock(struct ufs_hba *hba,
struct ufs_hw_queue *hwq);
bool ufshcd_cmd_inflight(struct scsi_cmnd *cmd);
int ufshcd_mcq_sq_cleanup(struct ufs_hba *hba, int task_tag);
int ufshcd_mcq_abort(struct scsi_cmnd *cmd);
int ufshcd_try_to_abort_task(struct ufs_hba *hba, int tag);
void ufshcd_release_scsi_cmd(struct ufs_hba *hba,
struct ufshcd_lrb *lrbp);
#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_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,
enum upiu_request_transaction 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);
}
static inline void ufshcd_vops_reinit_notify(struct ufs_hba *hba)
{
if (hba->vops && hba->vops->reinit_notify)
hba->vops->reinit_notify(hba);
}
static inline int ufshcd_vops_mcq_config_resource(struct ufs_hba *hba)
{
if (hba->vops && hba->vops->mcq_config_resource)
return hba->vops->mcq_config_resource(hba);
return -EOPNOTSUPP;
}
static inline int ufshcd_mcq_vops_op_runtime_config(struct ufs_hba *hba)
{
if (hba->vops && hba->vops->op_runtime_config)
return hba->vops->op_runtime_config(hba);
return -EOPNOTSUPP;
}
static inline int ufshcd_vops_get_outstanding_cqs(struct ufs_hba *hba,
unsigned long *ocqs)
{
if (hba->vops && hba->vops->get_outstanding_cqs)
return hba->vops->get_outstanding_cqs(hba, ocqs);
return -EOPNOTSUPP;
}
static inline int ufshcd_mcq_vops_config_esi(struct ufs_hba *hba)
{
if (hba->vops && hba->vops->config_esi)
return hba->vops->config_esi(hba);
return -EOPNOTSUPP;
}
extern const 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
*
* Return: 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,
const 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)
{
if (!dev_info || !dev_info->max_lu_supported) {
pr_err("Max General LU supported by UFS isn't initialized\n");
return false;
}
return lun == UFS_UPIU_RPMB_WLUN || (lun < dev_info->max_lu_supported);
}
static inline void ufshcd_inc_sq_tail(struct ufs_hw_queue *q)
__must_hold(&q->sq_lock)
{
u32 val;
q->sq_tail_slot++;
if (q->sq_tail_slot == q->max_entries)
q->sq_tail_slot = 0;
val = q->sq_tail_slot * sizeof(struct utp_transfer_req_desc);
writel(val, q->mcq_sq_tail);
}
static inline void ufshcd_mcq_update_cq_tail_slot(struct ufs_hw_queue *q)
{
u32 val = readl(q->mcq_cq_tail);
q->cq_tail_slot = val / sizeof(struct cq_entry);
}
static inline bool ufshcd_mcq_is_cq_empty(struct ufs_hw_queue *q)
{
return q->cq_head_slot == q->cq_tail_slot;
}
static inline void ufshcd_mcq_inc_cq_head_slot(struct ufs_hw_queue *q)
{
q->cq_head_slot++;
if (q->cq_head_slot == q->max_entries)
q->cq_head_slot = 0;
}
static inline void ufshcd_mcq_update_cq_head(struct ufs_hw_queue *q)
{
writel(q->cq_head_slot * sizeof(struct cq_entry), q->mcq_cq_head);
}
static inline struct cq_entry *ufshcd_mcq_cur_cqe(struct ufs_hw_queue *q)
{
struct cq_entry *cqe = q->cqe_base_addr;
return cqe + q->cq_head_slot;
}
static inline u32 ufshcd_mcq_get_sq_head_slot(struct ufs_hw_queue *q)
{
u32 val = readl(q->mcq_sq_head);
return val / sizeof(struct utp_transfer_req_desc);
}
#endif /* _UFSHCD_PRIV_H_ */
|
