1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
2 /*
3 * Copyright (C) 2005-2014, 2018-2019 Intel Corporation
4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5 * Copyright (C) 2015-2017 Intel Deutschland GmbH
6 */
7 #ifndef __iwl_fw_dbg_h__
8 #define __iwl_fw_dbg_h__
9 #include <linux/workqueue.h>
10 #include <net/cfg80211.h>
11 #include "runtime.h"
12 #include "iwl-prph.h"
13 #include "iwl-io.h"
14 #include "file.h"
15 #include "error-dump.h"
16 #include "api/commands.h"
17 #include "api/dbg-tlv.h"
18 #include "api/alive.h"
19
20 /**
21 * struct iwl_fw_dump_desc - describes the dump
22 * @len: length of trig_desc->data
23 * @trig_desc: the description of the dump
24 */
25 struct iwl_fw_dump_desc {
26 size_t len;
27 /* must be last */
28 struct iwl_fw_error_dump_trigger_desc trig_desc;
29 };
30
31 /**
32 * struct iwl_fw_dbg_params - register values to restore
33 * @in_sample: DBGC_IN_SAMPLE value
34 * @out_ctrl: DBGC_OUT_CTRL value
35 */
36 struct iwl_fw_dbg_params {
37 u32 in_sample;
38 u32 out_ctrl;
39 };
40
41 extern const struct iwl_fw_dump_desc iwl_dump_desc_assert;
42
43 int iwl_fw_dbg_collect_desc(struct iwl_fw_runtime *fwrt,
44 const struct iwl_fw_dump_desc *desc,
45 bool monitor_only, unsigned int delay);
46 int iwl_fw_dbg_error_collect(struct iwl_fw_runtime *fwrt,
47 enum iwl_fw_dbg_trigger trig_type);
48 int iwl_fw_dbg_ini_collect(struct iwl_fw_runtime *fwrt,
49 struct iwl_fwrt_dump_data *dump_data);
50 int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt,
51 enum iwl_fw_dbg_trigger trig, const char *str,
52 size_t len, struct iwl_fw_dbg_trigger_tlv *trigger);
53 int iwl_fw_dbg_collect_trig(struct iwl_fw_runtime *fwrt,
54 struct iwl_fw_dbg_trigger_tlv *trigger,
55 const char *fmt, ...) __printf(3, 4);
56 int iwl_fw_start_dbg_conf(struct iwl_fw_runtime *fwrt, u8 id);
57
58 #define iwl_fw_dbg_trigger_enabled(fw, id) ({ \
59 void *__dbg_trigger = (fw)->dbg.trigger_tlv[(id)]; \
60 unlikely(__dbg_trigger); \
61 })
62
63 static inline struct iwl_fw_dbg_trigger_tlv*
_iwl_fw_dbg_get_trigger(const struct iwl_fw * fw,enum iwl_fw_dbg_trigger id)64 _iwl_fw_dbg_get_trigger(const struct iwl_fw *fw, enum iwl_fw_dbg_trigger id)
65 {
66 return fw->dbg.trigger_tlv[id];
67 }
68
69 #define iwl_fw_dbg_get_trigger(fw, id) ({ \
70 BUILD_BUG_ON(!__builtin_constant_p(id)); \
71 BUILD_BUG_ON((id) >= FW_DBG_TRIGGER_MAX); \
72 _iwl_fw_dbg_get_trigger((fw), (id)); \
73 })
74
75 static inline bool
iwl_fw_dbg_trigger_vif_match(struct iwl_fw_dbg_trigger_tlv * trig,struct wireless_dev * wdev)76 iwl_fw_dbg_trigger_vif_match(struct iwl_fw_dbg_trigger_tlv *trig,
77 struct wireless_dev *wdev)
78 {
79 u32 trig_vif = le32_to_cpu(trig->vif_type);
80
81 return trig_vif == IWL_FW_DBG_CONF_VIF_ANY ||
82 wdev->iftype == trig_vif;
83 }
84
85 static inline bool
iwl_fw_dbg_trigger_stop_conf_match(struct iwl_fw_runtime * fwrt,struct iwl_fw_dbg_trigger_tlv * trig)86 iwl_fw_dbg_trigger_stop_conf_match(struct iwl_fw_runtime *fwrt,
87 struct iwl_fw_dbg_trigger_tlv *trig)
88 {
89 return ((trig->mode & IWL_FW_DBG_TRIGGER_STOP) &&
90 (fwrt->dump.conf == FW_DBG_INVALID ||
91 (BIT(fwrt->dump.conf) & le32_to_cpu(trig->stop_conf_ids))));
92 }
93
94 static inline bool
iwl_fw_dbg_no_trig_window(struct iwl_fw_runtime * fwrt,u32 id,u32 dis_usec)95 iwl_fw_dbg_no_trig_window(struct iwl_fw_runtime *fwrt, u32 id, u32 dis_usec)
96 {
97 unsigned long wind_jiff = usecs_to_jiffies(dis_usec);
98
99 /* If this is the first event checked, jump to update start ts */
100 if (fwrt->dump.non_collect_ts_start[id] &&
101 (time_after(fwrt->dump.non_collect_ts_start[id] + wind_jiff,
102 jiffies)))
103 return true;
104
105 fwrt->dump.non_collect_ts_start[id] = jiffies;
106 return false;
107 }
108
109 static inline bool
iwl_fw_dbg_trigger_check_stop(struct iwl_fw_runtime * fwrt,struct wireless_dev * wdev,struct iwl_fw_dbg_trigger_tlv * trig)110 iwl_fw_dbg_trigger_check_stop(struct iwl_fw_runtime *fwrt,
111 struct wireless_dev *wdev,
112 struct iwl_fw_dbg_trigger_tlv *trig)
113 {
114 u32 usec = le16_to_cpu(trig->trig_dis_ms) * USEC_PER_MSEC;
115
116 if (wdev && !iwl_fw_dbg_trigger_vif_match(trig, wdev))
117 return false;
118
119 if (iwl_fw_dbg_no_trig_window(fwrt, le32_to_cpu(trig->id), usec)) {
120 IWL_WARN(fwrt, "Trigger %d occurred while no-collect window.\n",
121 trig->id);
122 return false;
123 }
124
125 return iwl_fw_dbg_trigger_stop_conf_match(fwrt, trig);
126 }
127
128 static inline struct iwl_fw_dbg_trigger_tlv*
_iwl_fw_dbg_trigger_on(struct iwl_fw_runtime * fwrt,struct wireless_dev * wdev,const enum iwl_fw_dbg_trigger id)129 _iwl_fw_dbg_trigger_on(struct iwl_fw_runtime *fwrt,
130 struct wireless_dev *wdev,
131 const enum iwl_fw_dbg_trigger id)
132 {
133 struct iwl_fw_dbg_trigger_tlv *trig;
134
135 if (iwl_trans_dbg_ini_valid(fwrt->trans))
136 return NULL;
137
138 if (!iwl_fw_dbg_trigger_enabled(fwrt->fw, id))
139 return NULL;
140
141 trig = _iwl_fw_dbg_get_trigger(fwrt->fw, id);
142
143 if (!iwl_fw_dbg_trigger_check_stop(fwrt, wdev, trig))
144 return NULL;
145
146 return trig;
147 }
148
149 #define iwl_fw_dbg_trigger_on(fwrt, wdev, id) ({ \
150 BUILD_BUG_ON(!__builtin_constant_p(id)); \
151 BUILD_BUG_ON((id) >= FW_DBG_TRIGGER_MAX); \
152 _iwl_fw_dbg_trigger_on((fwrt), (wdev), (id)); \
153 })
154
155 static inline void
_iwl_fw_dbg_trigger_simple_stop(struct iwl_fw_runtime * fwrt,struct wireless_dev * wdev,struct iwl_fw_dbg_trigger_tlv * trigger)156 _iwl_fw_dbg_trigger_simple_stop(struct iwl_fw_runtime *fwrt,
157 struct wireless_dev *wdev,
158 struct iwl_fw_dbg_trigger_tlv *trigger)
159 {
160 if (!trigger)
161 return;
162
163 if (!iwl_fw_dbg_trigger_check_stop(fwrt, wdev, trigger))
164 return;
165
166 iwl_fw_dbg_collect_trig(fwrt, trigger, NULL);
167 }
168
169 #define iwl_fw_dbg_trigger_simple_stop(fwrt, wdev, trig) \
170 _iwl_fw_dbg_trigger_simple_stop((fwrt), (wdev), \
171 iwl_fw_dbg_get_trigger((fwrt)->fw,\
172 (trig)))
173 void iwl_fw_dbg_stop_restart_recording(struct iwl_fw_runtime *fwrt,
174 struct iwl_fw_dbg_params *params,
175 bool stop);
176
177 #ifdef CONFIG_IWLWIFI_DEBUGFS
iwl_fw_set_dbg_rec_on(struct iwl_fw_runtime * fwrt)178 static inline void iwl_fw_set_dbg_rec_on(struct iwl_fw_runtime *fwrt)
179 {
180 if (fwrt->cur_fw_img == IWL_UCODE_REGULAR &&
181 (fwrt->fw->dbg.dest_tlv ||
182 fwrt->trans->dbg.ini_dest != IWL_FW_INI_LOCATION_INVALID))
183 fwrt->trans->dbg.rec_on = true;
184 }
185 #endif
186
iwl_fw_dump_conf_clear(struct iwl_fw_runtime * fwrt)187 static inline void iwl_fw_dump_conf_clear(struct iwl_fw_runtime *fwrt)
188 {
189 fwrt->dump.conf = FW_DBG_INVALID;
190 }
191
192 void iwl_fw_error_dump_wk(struct work_struct *work);
193
iwl_fw_dbg_type_on(struct iwl_fw_runtime * fwrt,u32 type)194 static inline bool iwl_fw_dbg_type_on(struct iwl_fw_runtime *fwrt, u32 type)
195 {
196 return (fwrt->fw->dbg.dump_mask & BIT(type));
197 }
198
iwl_fw_dbg_is_d3_debug_enabled(struct iwl_fw_runtime * fwrt)199 static inline bool iwl_fw_dbg_is_d3_debug_enabled(struct iwl_fw_runtime *fwrt)
200 {
201 return fw_has_capa(&fwrt->fw->ucode_capa,
202 IWL_UCODE_TLV_CAPA_D3_DEBUG) &&
203 fwrt->trans->cfg->d3_debug_data_length && fwrt->ops &&
204 fwrt->ops->d3_debug_enable &&
205 fwrt->ops->d3_debug_enable(fwrt->ops_ctx) &&
206 iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_D3_DEBUG_DATA);
207 }
208
iwl_fw_dbg_is_paging_enabled(struct iwl_fw_runtime * fwrt)209 static inline bool iwl_fw_dbg_is_paging_enabled(struct iwl_fw_runtime *fwrt)
210 {
211 return iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_PAGING) &&
212 !fwrt->trans->trans_cfg->gen2 &&
213 fwrt->cur_fw_img < IWL_UCODE_TYPE_MAX &&
214 fwrt->fw->img[fwrt->cur_fw_img].paging_mem_size &&
215 fwrt->fw_paging_db[0].fw_paging_block;
216 }
217
218 void iwl_fw_dbg_read_d3_debug_data(struct iwl_fw_runtime *fwrt);
219
iwl_fw_flush_dumps(struct iwl_fw_runtime * fwrt)220 static inline void iwl_fw_flush_dumps(struct iwl_fw_runtime *fwrt)
221 {
222 int i;
223
224 iwl_dbg_tlv_del_timers(fwrt->trans);
225 for (i = 0; i < IWL_FW_RUNTIME_DUMP_WK_NUM; i++)
226 flush_delayed_work(&fwrt->dump.wks[i].wk);
227 }
228
229 #ifdef CONFIG_IWLWIFI_DEBUGFS
iwl_fw_cancel_timestamp(struct iwl_fw_runtime * fwrt)230 static inline void iwl_fw_cancel_timestamp(struct iwl_fw_runtime *fwrt)
231 {
232 fwrt->timestamp.delay = 0;
233 cancel_delayed_work_sync(&fwrt->timestamp.wk);
234 }
235
236 void iwl_fw_trigger_timestamp(struct iwl_fw_runtime *fwrt, u32 delay);
237
iwl_fw_suspend_timestamp(struct iwl_fw_runtime * fwrt)238 static inline void iwl_fw_suspend_timestamp(struct iwl_fw_runtime *fwrt)
239 {
240 cancel_delayed_work_sync(&fwrt->timestamp.wk);
241 }
242
iwl_fw_resume_timestamp(struct iwl_fw_runtime * fwrt)243 static inline void iwl_fw_resume_timestamp(struct iwl_fw_runtime *fwrt)
244 {
245 if (!fwrt->timestamp.delay)
246 return;
247
248 schedule_delayed_work(&fwrt->timestamp.wk,
249 round_jiffies_relative(fwrt->timestamp.delay));
250 }
251
252 #else
253
iwl_fw_cancel_timestamp(struct iwl_fw_runtime * fwrt)254 static inline void iwl_fw_cancel_timestamp(struct iwl_fw_runtime *fwrt) {}
255
iwl_fw_trigger_timestamp(struct iwl_fw_runtime * fwrt,u32 delay)256 static inline void iwl_fw_trigger_timestamp(struct iwl_fw_runtime *fwrt,
257 u32 delay) {}
258
iwl_fw_suspend_timestamp(struct iwl_fw_runtime * fwrt)259 static inline void iwl_fw_suspend_timestamp(struct iwl_fw_runtime *fwrt) {}
260
iwl_fw_resume_timestamp(struct iwl_fw_runtime * fwrt)261 static inline void iwl_fw_resume_timestamp(struct iwl_fw_runtime *fwrt) {}
262
263 #endif /* CONFIG_IWLWIFI_DEBUGFS */
264
265 void iwl_fw_dbg_stop_sync(struct iwl_fw_runtime *fwrt);
266
iwl_fw_lmac1_set_alive_err_table(struct iwl_trans * trans,u32 lmac_error_event_table)267 static inline void iwl_fw_lmac1_set_alive_err_table(struct iwl_trans *trans,
268 u32 lmac_error_event_table)
269 {
270 if (!(trans->dbg.error_event_table_tlv_status &
271 IWL_ERROR_EVENT_TABLE_LMAC1) ||
272 WARN_ON(trans->dbg.lmac_error_event_table[0] !=
273 lmac_error_event_table))
274 trans->dbg.lmac_error_event_table[0] = lmac_error_event_table;
275 }
276
iwl_fw_umac_set_alive_err_table(struct iwl_trans * trans,u32 umac_error_event_table)277 static inline void iwl_fw_umac_set_alive_err_table(struct iwl_trans *trans,
278 u32 umac_error_event_table)
279 {
280 if (!(trans->dbg.error_event_table_tlv_status &
281 IWL_ERROR_EVENT_TABLE_UMAC) ||
282 WARN_ON(trans->dbg.umac_error_event_table !=
283 umac_error_event_table))
284 trans->dbg.umac_error_event_table = umac_error_event_table;
285 }
286
iwl_fw_error_collect(struct iwl_fw_runtime * fwrt)287 static inline void iwl_fw_error_collect(struct iwl_fw_runtime *fwrt)
288 {
289 enum iwl_fw_ini_time_point tp_id;
290
291 if (!iwl_trans_dbg_ini_valid(fwrt->trans)) {
292 iwl_fw_dbg_collect_desc(fwrt, &iwl_dump_desc_assert, false, 0);
293 return;
294 }
295
296 if (fwrt->trans->dbg.hw_error) {
297 tp_id = IWL_FW_INI_TIME_POINT_FW_HW_ERROR;
298 fwrt->trans->dbg.hw_error = false;
299 } else {
300 tp_id = IWL_FW_INI_TIME_POINT_FW_ASSERT;
301 }
302
303 iwl_dbg_tlv_time_point(fwrt, tp_id, NULL);
304 }
305
306 void iwl_fw_error_print_fseq_regs(struct iwl_fw_runtime *fwrt);
307
iwl_fwrt_update_fw_versions(struct iwl_fw_runtime * fwrt,struct iwl_lmac_alive * lmac,struct iwl_umac_alive * umac)308 static inline void iwl_fwrt_update_fw_versions(struct iwl_fw_runtime *fwrt,
309 struct iwl_lmac_alive *lmac,
310 struct iwl_umac_alive *umac)
311 {
312 if (lmac) {
313 fwrt->dump.fw_ver.type = lmac->ver_type;
314 fwrt->dump.fw_ver.subtype = lmac->ver_subtype;
315 fwrt->dump.fw_ver.lmac_major = le32_to_cpu(lmac->ucode_major);
316 fwrt->dump.fw_ver.lmac_minor = le32_to_cpu(lmac->ucode_minor);
317 }
318
319 if (umac) {
320 fwrt->dump.fw_ver.umac_major = le32_to_cpu(umac->umac_major);
321 fwrt->dump.fw_ver.umac_minor = le32_to_cpu(umac->umac_minor);
322 }
323 }
324 #endif /* __iwl_fw_dbg_h__ */
325