1
2
3
4#include <linux/err.h>
5#include <linux/string.h>
6#include <linux/bitfield.h>
7#include <asm/unaligned.h>
8
9#include "ufs.h"
10#include "ufs-sysfs.h"
11
12static const char *ufschd_uic_link_state_to_string(
13 enum uic_link_state state)
14{
15 switch (state) {
16 case UIC_LINK_OFF_STATE: return "OFF";
17 case UIC_LINK_ACTIVE_STATE: return "ACTIVE";
18 case UIC_LINK_HIBERN8_STATE: return "HIBERN8";
19 case UIC_LINK_BROKEN_STATE: return "BROKEN";
20 default: return "UNKNOWN";
21 }
22}
23
24static const char *ufschd_ufs_dev_pwr_mode_to_string(
25 enum ufs_dev_pwr_mode state)
26{
27 switch (state) {
28 case UFS_ACTIVE_PWR_MODE: return "ACTIVE";
29 case UFS_SLEEP_PWR_MODE: return "SLEEP";
30 case UFS_POWERDOWN_PWR_MODE: return "POWERDOWN";
31 case UFS_DEEPSLEEP_PWR_MODE: return "DEEPSLEEP";
32 default: return "UNKNOWN";
33 }
34}
35
36static inline ssize_t ufs_sysfs_pm_lvl_store(struct device *dev,
37 struct device_attribute *attr,
38 const char *buf, size_t count,
39 bool rpm)
40{
41 struct ufs_hba *hba = dev_get_drvdata(dev);
42 struct ufs_dev_info *dev_info = &hba->dev_info;
43 unsigned long flags, value;
44
45 if (kstrtoul(buf, 0, &value))
46 return -EINVAL;
47
48 if (value >= UFS_PM_LVL_MAX)
49 return -EINVAL;
50
51 if (ufs_pm_lvl_states[value].dev_state == UFS_DEEPSLEEP_PWR_MODE &&
52 (!(hba->caps & UFSHCD_CAP_DEEPSLEEP) ||
53 !(dev_info->wspecversion >= 0x310)))
54 return -EINVAL;
55
56 spin_lock_irqsave(hba->host->host_lock, flags);
57 if (rpm)
58 hba->rpm_lvl = value;
59 else
60 hba->spm_lvl = value;
61 spin_unlock_irqrestore(hba->host->host_lock, flags);
62 return count;
63}
64
65static ssize_t rpm_lvl_show(struct device *dev,
66 struct device_attribute *attr, char *buf)
67{
68 struct ufs_hba *hba = dev_get_drvdata(dev);
69
70 return sprintf(buf, "%d\n", hba->rpm_lvl);
71}
72
73static ssize_t rpm_lvl_store(struct device *dev,
74 struct device_attribute *attr, const char *buf, size_t count)
75{
76 return ufs_sysfs_pm_lvl_store(dev, attr, buf, count, true);
77}
78
79static ssize_t rpm_target_dev_state_show(struct device *dev,
80 struct device_attribute *attr, char *buf)
81{
82 struct ufs_hba *hba = dev_get_drvdata(dev);
83
84 return sprintf(buf, "%s\n", ufschd_ufs_dev_pwr_mode_to_string(
85 ufs_pm_lvl_states[hba->rpm_lvl].dev_state));
86}
87
88static ssize_t rpm_target_link_state_show(struct device *dev,
89 struct device_attribute *attr, char *buf)
90{
91 struct ufs_hba *hba = dev_get_drvdata(dev);
92
93 return sprintf(buf, "%s\n", ufschd_uic_link_state_to_string(
94 ufs_pm_lvl_states[hba->rpm_lvl].link_state));
95}
96
97static ssize_t spm_lvl_show(struct device *dev,
98 struct device_attribute *attr, char *buf)
99{
100 struct ufs_hba *hba = dev_get_drvdata(dev);
101
102 return sprintf(buf, "%d\n", hba->spm_lvl);
103}
104
105static ssize_t spm_lvl_store(struct device *dev,
106 struct device_attribute *attr, const char *buf, size_t count)
107{
108 return ufs_sysfs_pm_lvl_store(dev, attr, buf, count, false);
109}
110
111static ssize_t spm_target_dev_state_show(struct device *dev,
112 struct device_attribute *attr, char *buf)
113{
114 struct ufs_hba *hba = dev_get_drvdata(dev);
115
116 return sprintf(buf, "%s\n", ufschd_ufs_dev_pwr_mode_to_string(
117 ufs_pm_lvl_states[hba->spm_lvl].dev_state));
118}
119
120static ssize_t spm_target_link_state_show(struct device *dev,
121 struct device_attribute *attr, char *buf)
122{
123 struct ufs_hba *hba = dev_get_drvdata(dev);
124
125 return sprintf(buf, "%s\n", ufschd_uic_link_state_to_string(
126 ufs_pm_lvl_states[hba->spm_lvl].link_state));
127}
128
129
130static int ufshcd_ahit_to_us(u32 ahit)
131{
132 int timer = FIELD_GET(UFSHCI_AHIBERN8_TIMER_MASK, ahit);
133 int scale = FIELD_GET(UFSHCI_AHIBERN8_SCALE_MASK, ahit);
134
135 for (; scale > 0; --scale)
136 timer *= UFSHCI_AHIBERN8_SCALE_FACTOR;
137
138 return timer;
139}
140
141
142static u32 ufshcd_us_to_ahit(unsigned int timer)
143{
144 unsigned int scale;
145
146 for (scale = 0; timer > UFSHCI_AHIBERN8_TIMER_MASK; ++scale)
147 timer /= UFSHCI_AHIBERN8_SCALE_FACTOR;
148
149 return FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, timer) |
150 FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, scale);
151}
152
153static ssize_t auto_hibern8_show(struct device *dev,
154 struct device_attribute *attr, char *buf)
155{
156 u32 ahit;
157 struct ufs_hba *hba = dev_get_drvdata(dev);
158
159 if (!ufshcd_is_auto_hibern8_supported(hba))
160 return -EOPNOTSUPP;
161
162 pm_runtime_get_sync(hba->dev);
163 ufshcd_hold(hba, false);
164 ahit = ufshcd_readl(hba, REG_AUTO_HIBERNATE_IDLE_TIMER);
165 ufshcd_release(hba);
166 pm_runtime_put_sync(hba->dev);
167
168 return scnprintf(buf, PAGE_SIZE, "%d\n", ufshcd_ahit_to_us(ahit));
169}
170
171static ssize_t auto_hibern8_store(struct device *dev,
172 struct device_attribute *attr,
173 const char *buf, size_t count)
174{
175 struct ufs_hba *hba = dev_get_drvdata(dev);
176 unsigned int timer;
177
178 if (!ufshcd_is_auto_hibern8_supported(hba))
179 return -EOPNOTSUPP;
180
181 if (kstrtouint(buf, 0, &timer))
182 return -EINVAL;
183
184 if (timer > UFSHCI_AHIBERN8_MAX)
185 return -EINVAL;
186
187 ufshcd_auto_hibern8_update(hba, ufshcd_us_to_ahit(timer));
188
189 return count;
190}
191
192static DEVICE_ATTR_RW(rpm_lvl);
193static DEVICE_ATTR_RO(rpm_target_dev_state);
194static DEVICE_ATTR_RO(rpm_target_link_state);
195static DEVICE_ATTR_RW(spm_lvl);
196static DEVICE_ATTR_RO(spm_target_dev_state);
197static DEVICE_ATTR_RO(spm_target_link_state);
198static DEVICE_ATTR_RW(auto_hibern8);
199
200static struct attribute *ufs_sysfs_ufshcd_attrs[] = {
201 &dev_attr_rpm_lvl.attr,
202 &dev_attr_rpm_target_dev_state.attr,
203 &dev_attr_rpm_target_link_state.attr,
204 &dev_attr_spm_lvl.attr,
205 &dev_attr_spm_target_dev_state.attr,
206 &dev_attr_spm_target_link_state.attr,
207 &dev_attr_auto_hibern8.attr,
208 NULL
209};
210
211static const struct attribute_group ufs_sysfs_default_group = {
212 .attrs = ufs_sysfs_ufshcd_attrs,
213};
214
215static ssize_t ufs_sysfs_read_desc_param(struct ufs_hba *hba,
216 enum desc_idn desc_id,
217 u8 desc_index,
218 u8 param_offset,
219 u8 *sysfs_buf,
220 u8 param_size)
221{
222 u8 desc_buf[8] = {0};
223 int ret;
224
225 if (param_size > 8)
226 return -EINVAL;
227
228 pm_runtime_get_sync(hba->dev);
229 ret = ufshcd_read_desc_param(hba, desc_id, desc_index,
230 param_offset, desc_buf, param_size);
231 pm_runtime_put_sync(hba->dev);
232 if (ret)
233 return -EINVAL;
234 switch (param_size) {
235 case 1:
236 ret = sprintf(sysfs_buf, "0x%02X\n", *desc_buf);
237 break;
238 case 2:
239 ret = sprintf(sysfs_buf, "0x%04X\n",
240 get_unaligned_be16(desc_buf));
241 break;
242 case 4:
243 ret = sprintf(sysfs_buf, "0x%08X\n",
244 get_unaligned_be32(desc_buf));
245 break;
246 case 8:
247 ret = sprintf(sysfs_buf, "0x%016llX\n",
248 get_unaligned_be64(desc_buf));
249 break;
250 }
251
252 return ret;
253}
254
255#define UFS_DESC_PARAM(_name, _puname, _duname, _size) \
256static ssize_t _name##_show(struct device *dev, \
257 struct device_attribute *attr, char *buf) \
258{ \
259 struct ufs_hba *hba = dev_get_drvdata(dev); \
260 return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_##_duname, \
261 0, _duname##_DESC_PARAM##_puname, buf, _size); \
262} \
263static DEVICE_ATTR_RO(_name)
264
265#define UFS_DEVICE_DESC_PARAM(_name, _uname, _size) \
266 UFS_DESC_PARAM(_name, _uname, DEVICE, _size)
267
268UFS_DEVICE_DESC_PARAM(device_type, _DEVICE_TYPE, 1);
269UFS_DEVICE_DESC_PARAM(device_class, _DEVICE_CLASS, 1);
270UFS_DEVICE_DESC_PARAM(device_sub_class, _DEVICE_SUB_CLASS, 1);
271UFS_DEVICE_DESC_PARAM(protocol, _PRTCL, 1);
272UFS_DEVICE_DESC_PARAM(number_of_luns, _NUM_LU, 1);
273UFS_DEVICE_DESC_PARAM(number_of_wluns, _NUM_WLU, 1);
274UFS_DEVICE_DESC_PARAM(boot_enable, _BOOT_ENBL, 1);
275UFS_DEVICE_DESC_PARAM(descriptor_access_enable, _DESC_ACCSS_ENBL, 1);
276UFS_DEVICE_DESC_PARAM(initial_power_mode, _INIT_PWR_MODE, 1);
277UFS_DEVICE_DESC_PARAM(high_priority_lun, _HIGH_PR_LUN, 1);
278UFS_DEVICE_DESC_PARAM(secure_removal_type, _SEC_RMV_TYPE, 1);
279UFS_DEVICE_DESC_PARAM(support_security_lun, _SEC_LU, 1);
280UFS_DEVICE_DESC_PARAM(bkops_termination_latency, _BKOP_TERM_LT, 1);
281UFS_DEVICE_DESC_PARAM(initial_active_icc_level, _ACTVE_ICC_LVL, 1);
282UFS_DEVICE_DESC_PARAM(specification_version, _SPEC_VER, 2);
283UFS_DEVICE_DESC_PARAM(manufacturing_date, _MANF_DATE, 2);
284UFS_DEVICE_DESC_PARAM(manufacturer_id, _MANF_ID, 2);
285UFS_DEVICE_DESC_PARAM(rtt_capability, _RTT_CAP, 1);
286UFS_DEVICE_DESC_PARAM(rtc_update, _FRQ_RTC, 2);
287UFS_DEVICE_DESC_PARAM(ufs_features, _UFS_FEAT, 1);
288UFS_DEVICE_DESC_PARAM(ffu_timeout, _FFU_TMT, 1);
289UFS_DEVICE_DESC_PARAM(queue_depth, _Q_DPTH, 1);
290UFS_DEVICE_DESC_PARAM(device_version, _DEV_VER, 2);
291UFS_DEVICE_DESC_PARAM(number_of_secure_wpa, _NUM_SEC_WPA, 1);
292UFS_DEVICE_DESC_PARAM(psa_max_data_size, _PSA_MAX_DATA, 4);
293UFS_DEVICE_DESC_PARAM(psa_state_timeout, _PSA_TMT, 1);
294UFS_DEVICE_DESC_PARAM(ext_feature_sup, _EXT_UFS_FEATURE_SUP, 4);
295UFS_DEVICE_DESC_PARAM(wb_presv_us_en, _WB_PRESRV_USRSPC_EN, 1);
296UFS_DEVICE_DESC_PARAM(wb_type, _WB_TYPE, 1);
297UFS_DEVICE_DESC_PARAM(wb_shared_alloc_units, _WB_SHARED_ALLOC_UNITS, 4);
298
299static struct attribute *ufs_sysfs_device_descriptor[] = {
300 &dev_attr_device_type.attr,
301 &dev_attr_device_class.attr,
302 &dev_attr_device_sub_class.attr,
303 &dev_attr_protocol.attr,
304 &dev_attr_number_of_luns.attr,
305 &dev_attr_number_of_wluns.attr,
306 &dev_attr_boot_enable.attr,
307 &dev_attr_descriptor_access_enable.attr,
308 &dev_attr_initial_power_mode.attr,
309 &dev_attr_high_priority_lun.attr,
310 &dev_attr_secure_removal_type.attr,
311 &dev_attr_support_security_lun.attr,
312 &dev_attr_bkops_termination_latency.attr,
313 &dev_attr_initial_active_icc_level.attr,
314 &dev_attr_specification_version.attr,
315 &dev_attr_manufacturing_date.attr,
316 &dev_attr_manufacturer_id.attr,
317 &dev_attr_rtt_capability.attr,
318 &dev_attr_rtc_update.attr,
319 &dev_attr_ufs_features.attr,
320 &dev_attr_ffu_timeout.attr,
321 &dev_attr_queue_depth.attr,
322 &dev_attr_device_version.attr,
323 &dev_attr_number_of_secure_wpa.attr,
324 &dev_attr_psa_max_data_size.attr,
325 &dev_attr_psa_state_timeout.attr,
326 &dev_attr_ext_feature_sup.attr,
327 &dev_attr_wb_presv_us_en.attr,
328 &dev_attr_wb_type.attr,
329 &dev_attr_wb_shared_alloc_units.attr,
330 NULL,
331};
332
333static const struct attribute_group ufs_sysfs_device_descriptor_group = {
334 .name = "device_descriptor",
335 .attrs = ufs_sysfs_device_descriptor,
336};
337
338#define UFS_INTERCONNECT_DESC_PARAM(_name, _uname, _size) \
339 UFS_DESC_PARAM(_name, _uname, INTERCONNECT, _size)
340
341UFS_INTERCONNECT_DESC_PARAM(unipro_version, _UNIPRO_VER, 2);
342UFS_INTERCONNECT_DESC_PARAM(mphy_version, _MPHY_VER, 2);
343
344static struct attribute *ufs_sysfs_interconnect_descriptor[] = {
345 &dev_attr_unipro_version.attr,
346 &dev_attr_mphy_version.attr,
347 NULL,
348};
349
350static const struct attribute_group ufs_sysfs_interconnect_descriptor_group = {
351 .name = "interconnect_descriptor",
352 .attrs = ufs_sysfs_interconnect_descriptor,
353};
354
355#define UFS_GEOMETRY_DESC_PARAM(_name, _uname, _size) \
356 UFS_DESC_PARAM(_name, _uname, GEOMETRY, _size)
357
358UFS_GEOMETRY_DESC_PARAM(raw_device_capacity, _DEV_CAP, 8);
359UFS_GEOMETRY_DESC_PARAM(max_number_of_luns, _MAX_NUM_LUN, 1);
360UFS_GEOMETRY_DESC_PARAM(segment_size, _SEG_SIZE, 4);
361UFS_GEOMETRY_DESC_PARAM(allocation_unit_size, _ALLOC_UNIT_SIZE, 1);
362UFS_GEOMETRY_DESC_PARAM(min_addressable_block_size, _MIN_BLK_SIZE, 1);
363UFS_GEOMETRY_DESC_PARAM(optimal_read_block_size, _OPT_RD_BLK_SIZE, 1);
364UFS_GEOMETRY_DESC_PARAM(optimal_write_block_size, _OPT_WR_BLK_SIZE, 1);
365UFS_GEOMETRY_DESC_PARAM(max_in_buffer_size, _MAX_IN_BUF_SIZE, 1);
366UFS_GEOMETRY_DESC_PARAM(max_out_buffer_size, _MAX_OUT_BUF_SIZE, 1);
367UFS_GEOMETRY_DESC_PARAM(rpmb_rw_size, _RPMB_RW_SIZE, 1);
368UFS_GEOMETRY_DESC_PARAM(dyn_capacity_resource_policy, _DYN_CAP_RSRC_PLC, 1);
369UFS_GEOMETRY_DESC_PARAM(data_ordering, _DATA_ORDER, 1);
370UFS_GEOMETRY_DESC_PARAM(max_number_of_contexts, _MAX_NUM_CTX, 1);
371UFS_GEOMETRY_DESC_PARAM(sys_data_tag_unit_size, _TAG_UNIT_SIZE, 1);
372UFS_GEOMETRY_DESC_PARAM(sys_data_tag_resource_size, _TAG_RSRC_SIZE, 1);
373UFS_GEOMETRY_DESC_PARAM(secure_removal_types, _SEC_RM_TYPES, 1);
374UFS_GEOMETRY_DESC_PARAM(memory_types, _MEM_TYPES, 2);
375UFS_GEOMETRY_DESC_PARAM(sys_code_memory_max_alloc_units,
376 _SCM_MAX_NUM_UNITS, 4);
377UFS_GEOMETRY_DESC_PARAM(sys_code_memory_capacity_adjustment_factor,
378 _SCM_CAP_ADJ_FCTR, 2);
379UFS_GEOMETRY_DESC_PARAM(non_persist_memory_max_alloc_units,
380 _NPM_MAX_NUM_UNITS, 4);
381UFS_GEOMETRY_DESC_PARAM(non_persist_memory_capacity_adjustment_factor,
382 _NPM_CAP_ADJ_FCTR, 2);
383UFS_GEOMETRY_DESC_PARAM(enh1_memory_max_alloc_units,
384 _ENM1_MAX_NUM_UNITS, 4);
385UFS_GEOMETRY_DESC_PARAM(enh1_memory_capacity_adjustment_factor,
386 _ENM1_CAP_ADJ_FCTR, 2);
387UFS_GEOMETRY_DESC_PARAM(enh2_memory_max_alloc_units,
388 _ENM2_MAX_NUM_UNITS, 4);
389UFS_GEOMETRY_DESC_PARAM(enh2_memory_capacity_adjustment_factor,
390 _ENM2_CAP_ADJ_FCTR, 2);
391UFS_GEOMETRY_DESC_PARAM(enh3_memory_max_alloc_units,
392 _ENM3_MAX_NUM_UNITS, 4);
393UFS_GEOMETRY_DESC_PARAM(enh3_memory_capacity_adjustment_factor,
394 _ENM3_CAP_ADJ_FCTR, 2);
395UFS_GEOMETRY_DESC_PARAM(enh4_memory_max_alloc_units,
396 _ENM4_MAX_NUM_UNITS, 4);
397UFS_GEOMETRY_DESC_PARAM(enh4_memory_capacity_adjustment_factor,
398 _ENM4_CAP_ADJ_FCTR, 2);
399UFS_GEOMETRY_DESC_PARAM(wb_max_alloc_units, _WB_MAX_ALLOC_UNITS, 4);
400UFS_GEOMETRY_DESC_PARAM(wb_max_wb_luns, _WB_MAX_WB_LUNS, 1);
401UFS_GEOMETRY_DESC_PARAM(wb_buff_cap_adj, _WB_BUFF_CAP_ADJ, 1);
402UFS_GEOMETRY_DESC_PARAM(wb_sup_red_type, _WB_SUP_RED_TYPE, 1);
403UFS_GEOMETRY_DESC_PARAM(wb_sup_wb_type, _WB_SUP_WB_TYPE, 1);
404
405
406static struct attribute *ufs_sysfs_geometry_descriptor[] = {
407 &dev_attr_raw_device_capacity.attr,
408 &dev_attr_max_number_of_luns.attr,
409 &dev_attr_segment_size.attr,
410 &dev_attr_allocation_unit_size.attr,
411 &dev_attr_min_addressable_block_size.attr,
412 &dev_attr_optimal_read_block_size.attr,
413 &dev_attr_optimal_write_block_size.attr,
414 &dev_attr_max_in_buffer_size.attr,
415 &dev_attr_max_out_buffer_size.attr,
416 &dev_attr_rpmb_rw_size.attr,
417 &dev_attr_dyn_capacity_resource_policy.attr,
418 &dev_attr_data_ordering.attr,
419 &dev_attr_max_number_of_contexts.attr,
420 &dev_attr_sys_data_tag_unit_size.attr,
421 &dev_attr_sys_data_tag_resource_size.attr,
422 &dev_attr_secure_removal_types.attr,
423 &dev_attr_memory_types.attr,
424 &dev_attr_sys_code_memory_max_alloc_units.attr,
425 &dev_attr_sys_code_memory_capacity_adjustment_factor.attr,
426 &dev_attr_non_persist_memory_max_alloc_units.attr,
427 &dev_attr_non_persist_memory_capacity_adjustment_factor.attr,
428 &dev_attr_enh1_memory_max_alloc_units.attr,
429 &dev_attr_enh1_memory_capacity_adjustment_factor.attr,
430 &dev_attr_enh2_memory_max_alloc_units.attr,
431 &dev_attr_enh2_memory_capacity_adjustment_factor.attr,
432 &dev_attr_enh3_memory_max_alloc_units.attr,
433 &dev_attr_enh3_memory_capacity_adjustment_factor.attr,
434 &dev_attr_enh4_memory_max_alloc_units.attr,
435 &dev_attr_enh4_memory_capacity_adjustment_factor.attr,
436 &dev_attr_wb_max_alloc_units.attr,
437 &dev_attr_wb_max_wb_luns.attr,
438 &dev_attr_wb_buff_cap_adj.attr,
439 &dev_attr_wb_sup_red_type.attr,
440 &dev_attr_wb_sup_wb_type.attr,
441 NULL,
442};
443
444static const struct attribute_group ufs_sysfs_geometry_descriptor_group = {
445 .name = "geometry_descriptor",
446 .attrs = ufs_sysfs_geometry_descriptor,
447};
448
449#define UFS_HEALTH_DESC_PARAM(_name, _uname, _size) \
450 UFS_DESC_PARAM(_name, _uname, HEALTH, _size)
451
452UFS_HEALTH_DESC_PARAM(eol_info, _EOL_INFO, 1);
453UFS_HEALTH_DESC_PARAM(life_time_estimation_a, _LIFE_TIME_EST_A, 1);
454UFS_HEALTH_DESC_PARAM(life_time_estimation_b, _LIFE_TIME_EST_B, 1);
455
456static struct attribute *ufs_sysfs_health_descriptor[] = {
457 &dev_attr_eol_info.attr,
458 &dev_attr_life_time_estimation_a.attr,
459 &dev_attr_life_time_estimation_b.attr,
460 NULL,
461};
462
463static const struct attribute_group ufs_sysfs_health_descriptor_group = {
464 .name = "health_descriptor",
465 .attrs = ufs_sysfs_health_descriptor,
466};
467
468#define UFS_POWER_DESC_PARAM(_name, _uname, _index) \
469static ssize_t _name##_index##_show(struct device *dev, \
470 struct device_attribute *attr, char *buf) \
471{ \
472 struct ufs_hba *hba = dev_get_drvdata(dev); \
473 return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_POWER, 0, \
474 PWR_DESC##_uname##_0 + _index * 2, buf, 2); \
475} \
476static DEVICE_ATTR_RO(_name##_index)
477
478UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 0);
479UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 1);
480UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 2);
481UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 3);
482UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 4);
483UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 5);
484UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 6);
485UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 7);
486UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 8);
487UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 9);
488UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 10);
489UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 11);
490UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 12);
491UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 13);
492UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 14);
493UFS_POWER_DESC_PARAM(active_icc_levels_vcc, _ACTIVE_LVLS_VCC, 15);
494UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 0);
495UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 1);
496UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 2);
497UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 3);
498UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 4);
499UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 5);
500UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 6);
501UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 7);
502UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 8);
503UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 9);
504UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 10);
505UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 11);
506UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 12);
507UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 13);
508UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 14);
509UFS_POWER_DESC_PARAM(active_icc_levels_vccq, _ACTIVE_LVLS_VCCQ, 15);
510UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 0);
511UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 1);
512UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 2);
513UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 3);
514UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 4);
515UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 5);
516UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 6);
517UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 7);
518UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 8);
519UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 9);
520UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 10);
521UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 11);
522UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 12);
523UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 13);
524UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 14);
525UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, _ACTIVE_LVLS_VCCQ2, 15);
526
527static struct attribute *ufs_sysfs_power_descriptor[] = {
528 &dev_attr_active_icc_levels_vcc0.attr,
529 &dev_attr_active_icc_levels_vcc1.attr,
530 &dev_attr_active_icc_levels_vcc2.attr,
531 &dev_attr_active_icc_levels_vcc3.attr,
532 &dev_attr_active_icc_levels_vcc4.attr,
533 &dev_attr_active_icc_levels_vcc5.attr,
534 &dev_attr_active_icc_levels_vcc6.attr,
535 &dev_attr_active_icc_levels_vcc7.attr,
536 &dev_attr_active_icc_levels_vcc8.attr,
537 &dev_attr_active_icc_levels_vcc9.attr,
538 &dev_attr_active_icc_levels_vcc10.attr,
539 &dev_attr_active_icc_levels_vcc11.attr,
540 &dev_attr_active_icc_levels_vcc12.attr,
541 &dev_attr_active_icc_levels_vcc13.attr,
542 &dev_attr_active_icc_levels_vcc14.attr,
543 &dev_attr_active_icc_levels_vcc15.attr,
544 &dev_attr_active_icc_levels_vccq0.attr,
545 &dev_attr_active_icc_levels_vccq1.attr,
546 &dev_attr_active_icc_levels_vccq2.attr,
547 &dev_attr_active_icc_levels_vccq3.attr,
548 &dev_attr_active_icc_levels_vccq4.attr,
549 &dev_attr_active_icc_levels_vccq5.attr,
550 &dev_attr_active_icc_levels_vccq6.attr,
551 &dev_attr_active_icc_levels_vccq7.attr,
552 &dev_attr_active_icc_levels_vccq8.attr,
553 &dev_attr_active_icc_levels_vccq9.attr,
554 &dev_attr_active_icc_levels_vccq10.attr,
555 &dev_attr_active_icc_levels_vccq11.attr,
556 &dev_attr_active_icc_levels_vccq12.attr,
557 &dev_attr_active_icc_levels_vccq13.attr,
558 &dev_attr_active_icc_levels_vccq14.attr,
559 &dev_attr_active_icc_levels_vccq15.attr,
560 &dev_attr_active_icc_levels_vccq20.attr,
561 &dev_attr_active_icc_levels_vccq21.attr,
562 &dev_attr_active_icc_levels_vccq22.attr,
563 &dev_attr_active_icc_levels_vccq23.attr,
564 &dev_attr_active_icc_levels_vccq24.attr,
565 &dev_attr_active_icc_levels_vccq25.attr,
566 &dev_attr_active_icc_levels_vccq26.attr,
567 &dev_attr_active_icc_levels_vccq27.attr,
568 &dev_attr_active_icc_levels_vccq28.attr,
569 &dev_attr_active_icc_levels_vccq29.attr,
570 &dev_attr_active_icc_levels_vccq210.attr,
571 &dev_attr_active_icc_levels_vccq211.attr,
572 &dev_attr_active_icc_levels_vccq212.attr,
573 &dev_attr_active_icc_levels_vccq213.attr,
574 &dev_attr_active_icc_levels_vccq214.attr,
575 &dev_attr_active_icc_levels_vccq215.attr,
576 NULL,
577};
578
579static const struct attribute_group ufs_sysfs_power_descriptor_group = {
580 .name = "power_descriptor",
581 .attrs = ufs_sysfs_power_descriptor,
582};
583
584#define UFS_STRING_DESCRIPTOR(_name, _pname) \
585static ssize_t _name##_show(struct device *dev, \
586 struct device_attribute *attr, char *buf) \
587{ \
588 u8 index; \
589 struct ufs_hba *hba = dev_get_drvdata(dev); \
590 int ret; \
591 int desc_len = QUERY_DESC_MAX_SIZE; \
592 u8 *desc_buf; \
593 \
594 desc_buf = kzalloc(QUERY_DESC_MAX_SIZE, GFP_ATOMIC); \
595 if (!desc_buf) \
596 return -ENOMEM; \
597 pm_runtime_get_sync(hba->dev); \
598 ret = ufshcd_query_descriptor_retry(hba, \
599 UPIU_QUERY_OPCODE_READ_DESC, QUERY_DESC_IDN_DEVICE, \
600 0, 0, desc_buf, &desc_len); \
601 if (ret) { \
602 ret = -EINVAL; \
603 goto out; \
604 } \
605 index = desc_buf[DEVICE_DESC_PARAM##_pname]; \
606 kfree(desc_buf); \
607 desc_buf = NULL; \
608 ret = ufshcd_read_string_desc(hba, index, &desc_buf, \
609 SD_ASCII_STD); \
610 if (ret < 0) \
611 goto out; \
612 ret = snprintf(buf, PAGE_SIZE, "%s\n", desc_buf); \
613out: \
614 pm_runtime_put_sync(hba->dev); \
615 kfree(desc_buf); \
616 return ret; \
617} \
618static DEVICE_ATTR_RO(_name)
619
620UFS_STRING_DESCRIPTOR(manufacturer_name, _MANF_NAME);
621UFS_STRING_DESCRIPTOR(product_name, _PRDCT_NAME);
622UFS_STRING_DESCRIPTOR(oem_id, _OEM_ID);
623UFS_STRING_DESCRIPTOR(serial_number, _SN);
624UFS_STRING_DESCRIPTOR(product_revision, _PRDCT_REV);
625
626static struct attribute *ufs_sysfs_string_descriptors[] = {
627 &dev_attr_manufacturer_name.attr,
628 &dev_attr_product_name.attr,
629 &dev_attr_oem_id.attr,
630 &dev_attr_serial_number.attr,
631 &dev_attr_product_revision.attr,
632 NULL,
633};
634
635static const struct attribute_group ufs_sysfs_string_descriptors_group = {
636 .name = "string_descriptors",
637 .attrs = ufs_sysfs_string_descriptors,
638};
639
640static inline bool ufshcd_is_wb_flags(enum flag_idn idn)
641{
642 return ((idn >= QUERY_FLAG_IDN_WB_EN) &&
643 (idn <= QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8));
644}
645
646#define UFS_FLAG(_name, _uname) \
647static ssize_t _name##_show(struct device *dev, \
648 struct device_attribute *attr, char *buf) \
649{ \
650 bool flag; \
651 u8 index = 0; \
652 int ret; \
653 struct ufs_hba *hba = dev_get_drvdata(dev); \
654 if (ufshcd_is_wb_flags(QUERY_FLAG_IDN##_uname)) \
655 index = ufshcd_wb_get_query_index(hba); \
656 pm_runtime_get_sync(hba->dev); \
657 ret = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, \
658 QUERY_FLAG_IDN##_uname, index, &flag); \
659 pm_runtime_put_sync(hba->dev); \
660 if (ret) \
661 return -EINVAL; \
662 return sprintf(buf, "%s\n", flag ? "true" : "false"); \
663} \
664static DEVICE_ATTR_RO(_name)
665
666UFS_FLAG(device_init, _FDEVICEINIT);
667UFS_FLAG(permanent_wpe, _PERMANENT_WPE);
668UFS_FLAG(power_on_wpe, _PWR_ON_WPE);
669UFS_FLAG(bkops_enable, _BKOPS_EN);
670UFS_FLAG(life_span_mode_enable, _LIFE_SPAN_MODE_ENABLE);
671UFS_FLAG(phy_resource_removal, _FPHYRESOURCEREMOVAL);
672UFS_FLAG(busy_rtc, _BUSY_RTC);
673UFS_FLAG(disable_fw_update, _PERMANENTLY_DISABLE_FW_UPDATE);
674UFS_FLAG(wb_enable, _WB_EN);
675UFS_FLAG(wb_flush_en, _WB_BUFF_FLUSH_EN);
676UFS_FLAG(wb_flush_during_h8, _WB_BUFF_FLUSH_DURING_HIBERN8);
677
678static struct attribute *ufs_sysfs_device_flags[] = {
679 &dev_attr_device_init.attr,
680 &dev_attr_permanent_wpe.attr,
681 &dev_attr_power_on_wpe.attr,
682 &dev_attr_bkops_enable.attr,
683 &dev_attr_life_span_mode_enable.attr,
684 &dev_attr_phy_resource_removal.attr,
685 &dev_attr_busy_rtc.attr,
686 &dev_attr_disable_fw_update.attr,
687 &dev_attr_wb_enable.attr,
688 &dev_attr_wb_flush_en.attr,
689 &dev_attr_wb_flush_during_h8.attr,
690 NULL,
691};
692
693static const struct attribute_group ufs_sysfs_flags_group = {
694 .name = "flags",
695 .attrs = ufs_sysfs_device_flags,
696};
697
698static inline bool ufshcd_is_wb_attrs(enum attr_idn idn)
699{
700 return ((idn >= QUERY_ATTR_IDN_WB_FLUSH_STATUS) &&
701 (idn <= QUERY_ATTR_IDN_CURR_WB_BUFF_SIZE));
702}
703
704#define UFS_ATTRIBUTE(_name, _uname) \
705static ssize_t _name##_show(struct device *dev, \
706 struct device_attribute *attr, char *buf) \
707{ \
708 struct ufs_hba *hba = dev_get_drvdata(dev); \
709 u32 value; \
710 int ret; \
711 u8 index = 0; \
712 if (ufshcd_is_wb_attrs(QUERY_ATTR_IDN##_uname)) \
713 index = ufshcd_wb_get_query_index(hba); \
714 pm_runtime_get_sync(hba->dev); \
715 ret = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR, \
716 QUERY_ATTR_IDN##_uname, index, 0, &value); \
717 pm_runtime_put_sync(hba->dev); \
718 if (ret) \
719 return -EINVAL; \
720 return sprintf(buf, "0x%08X\n", value); \
721} \
722static DEVICE_ATTR_RO(_name)
723
724UFS_ATTRIBUTE(boot_lun_enabled, _BOOT_LU_EN);
725UFS_ATTRIBUTE(current_power_mode, _POWER_MODE);
726UFS_ATTRIBUTE(active_icc_level, _ACTIVE_ICC_LVL);
727UFS_ATTRIBUTE(ooo_data_enabled, _OOO_DATA_EN);
728UFS_ATTRIBUTE(bkops_status, _BKOPS_STATUS);
729UFS_ATTRIBUTE(purge_status, _PURGE_STATUS);
730UFS_ATTRIBUTE(max_data_in_size, _MAX_DATA_IN);
731UFS_ATTRIBUTE(max_data_out_size, _MAX_DATA_OUT);
732UFS_ATTRIBUTE(reference_clock_frequency, _REF_CLK_FREQ);
733UFS_ATTRIBUTE(configuration_descriptor_lock, _CONF_DESC_LOCK);
734UFS_ATTRIBUTE(max_number_of_rtt, _MAX_NUM_OF_RTT);
735UFS_ATTRIBUTE(exception_event_control, _EE_CONTROL);
736UFS_ATTRIBUTE(exception_event_status, _EE_STATUS);
737UFS_ATTRIBUTE(ffu_status, _FFU_STATUS);
738UFS_ATTRIBUTE(psa_state, _PSA_STATE);
739UFS_ATTRIBUTE(psa_data_size, _PSA_DATA_SIZE);
740UFS_ATTRIBUTE(wb_flush_status, _WB_FLUSH_STATUS);
741UFS_ATTRIBUTE(wb_avail_buf, _AVAIL_WB_BUFF_SIZE);
742UFS_ATTRIBUTE(wb_life_time_est, _WB_BUFF_LIFE_TIME_EST);
743UFS_ATTRIBUTE(wb_cur_buf, _CURR_WB_BUFF_SIZE);
744
745
746static struct attribute *ufs_sysfs_attributes[] = {
747 &dev_attr_boot_lun_enabled.attr,
748 &dev_attr_current_power_mode.attr,
749 &dev_attr_active_icc_level.attr,
750 &dev_attr_ooo_data_enabled.attr,
751 &dev_attr_bkops_status.attr,
752 &dev_attr_purge_status.attr,
753 &dev_attr_max_data_in_size.attr,
754 &dev_attr_max_data_out_size.attr,
755 &dev_attr_reference_clock_frequency.attr,
756 &dev_attr_configuration_descriptor_lock.attr,
757 &dev_attr_max_number_of_rtt.attr,
758 &dev_attr_exception_event_control.attr,
759 &dev_attr_exception_event_status.attr,
760 &dev_attr_ffu_status.attr,
761 &dev_attr_psa_state.attr,
762 &dev_attr_psa_data_size.attr,
763 &dev_attr_wb_flush_status.attr,
764 &dev_attr_wb_avail_buf.attr,
765 &dev_attr_wb_life_time_est.attr,
766 &dev_attr_wb_cur_buf.attr,
767 NULL,
768};
769
770static const struct attribute_group ufs_sysfs_attributes_group = {
771 .name = "attributes",
772 .attrs = ufs_sysfs_attributes,
773};
774
775static const struct attribute_group *ufs_sysfs_groups[] = {
776 &ufs_sysfs_default_group,
777 &ufs_sysfs_device_descriptor_group,
778 &ufs_sysfs_interconnect_descriptor_group,
779 &ufs_sysfs_geometry_descriptor_group,
780 &ufs_sysfs_health_descriptor_group,
781 &ufs_sysfs_power_descriptor_group,
782 &ufs_sysfs_string_descriptors_group,
783 &ufs_sysfs_flags_group,
784 &ufs_sysfs_attributes_group,
785 NULL,
786};
787
788#define UFS_LUN_DESC_PARAM(_pname, _puname, _duname, _size) \
789static ssize_t _pname##_show(struct device *dev, \
790 struct device_attribute *attr, char *buf) \
791{ \
792 struct scsi_device *sdev = to_scsi_device(dev); \
793 struct ufs_hba *hba = shost_priv(sdev->host); \
794 u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun); \
795 if (!ufs_is_valid_unit_desc_lun(&hba->dev_info, lun)) \
796 return -EINVAL; \
797 return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_##_duname, \
798 lun, _duname##_DESC_PARAM##_puname, buf, _size); \
799} \
800static DEVICE_ATTR_RO(_pname)
801
802#define UFS_UNIT_DESC_PARAM(_name, _uname, _size) \
803 UFS_LUN_DESC_PARAM(_name, _uname, UNIT, _size)
804
805UFS_UNIT_DESC_PARAM(boot_lun_id, _BOOT_LUN_ID, 1);
806UFS_UNIT_DESC_PARAM(lun_write_protect, _LU_WR_PROTECT, 1);
807UFS_UNIT_DESC_PARAM(lun_queue_depth, _LU_Q_DEPTH, 1);
808UFS_UNIT_DESC_PARAM(psa_sensitive, _PSA_SENSITIVE, 1);
809UFS_UNIT_DESC_PARAM(lun_memory_type, _MEM_TYPE, 1);
810UFS_UNIT_DESC_PARAM(data_reliability, _DATA_RELIABILITY, 1);
811UFS_UNIT_DESC_PARAM(logical_block_size, _LOGICAL_BLK_SIZE, 1);
812UFS_UNIT_DESC_PARAM(logical_block_count, _LOGICAL_BLK_COUNT, 8);
813UFS_UNIT_DESC_PARAM(erase_block_size, _ERASE_BLK_SIZE, 4);
814UFS_UNIT_DESC_PARAM(provisioning_type, _PROVISIONING_TYPE, 1);
815UFS_UNIT_DESC_PARAM(physical_memory_resourse_count, _PHY_MEM_RSRC_CNT, 8);
816UFS_UNIT_DESC_PARAM(context_capabilities, _CTX_CAPABILITIES, 2);
817UFS_UNIT_DESC_PARAM(large_unit_granularity, _LARGE_UNIT_SIZE_M1, 1);
818UFS_UNIT_DESC_PARAM(wb_buf_alloc_units, _WB_BUF_ALLOC_UNITS, 4);
819
820
821static struct attribute *ufs_sysfs_unit_descriptor[] = {
822 &dev_attr_boot_lun_id.attr,
823 &dev_attr_lun_write_protect.attr,
824 &dev_attr_lun_queue_depth.attr,
825 &dev_attr_psa_sensitive.attr,
826 &dev_attr_lun_memory_type.attr,
827 &dev_attr_data_reliability.attr,
828 &dev_attr_logical_block_size.attr,
829 &dev_attr_logical_block_count.attr,
830 &dev_attr_erase_block_size.attr,
831 &dev_attr_provisioning_type.attr,
832 &dev_attr_physical_memory_resourse_count.attr,
833 &dev_attr_context_capabilities.attr,
834 &dev_attr_large_unit_granularity.attr,
835 &dev_attr_wb_buf_alloc_units.attr,
836 NULL,
837};
838
839const struct attribute_group ufs_sysfs_unit_descriptor_group = {
840 .name = "unit_descriptor",
841 .attrs = ufs_sysfs_unit_descriptor,
842};
843
844static ssize_t dyn_cap_needed_attribute_show(struct device *dev,
845 struct device_attribute *attr, char *buf)
846{
847 u32 value;
848 struct scsi_device *sdev = to_scsi_device(dev);
849 struct ufs_hba *hba = shost_priv(sdev->host);
850 u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun);
851 int ret;
852
853 pm_runtime_get_sync(hba->dev);
854 ret = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR,
855 QUERY_ATTR_IDN_DYN_CAP_NEEDED, lun, 0, &value);
856 pm_runtime_put_sync(hba->dev);
857 if (ret)
858 return -EINVAL;
859 return sprintf(buf, "0x%08X\n", value);
860}
861static DEVICE_ATTR_RO(dyn_cap_needed_attribute);
862
863static struct attribute *ufs_sysfs_lun_attributes[] = {
864 &dev_attr_dyn_cap_needed_attribute.attr,
865 NULL,
866};
867
868const struct attribute_group ufs_sysfs_lun_attributes_group = {
869 .attrs = ufs_sysfs_lun_attributes,
870};
871
872void ufs_sysfs_add_nodes(struct device *dev)
873{
874 int ret;
875
876 ret = sysfs_create_groups(&dev->kobj, ufs_sysfs_groups);
877 if (ret)
878 dev_err(dev,
879 "%s: sysfs groups creation failed (err = %d)\n",
880 __func__, ret);
881}
882
883void ufs_sysfs_remove_nodes(struct device *dev)
884{
885 sysfs_remove_groups(&dev->kobj, ufs_sysfs_groups);
886}
887
