1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
2 /*
3  * Copyright (C) 2005-2014, 2018-2019, 2021-2022 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 			   bool sync);
51 int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt,
52 		       enum iwl_fw_dbg_trigger trig, const char *str,
53 		       size_t len, struct iwl_fw_dbg_trigger_tlv *trigger);
54 int iwl_fw_dbg_collect_trig(struct iwl_fw_runtime *fwrt,
55 			    struct iwl_fw_dbg_trigger_tlv *trigger,
56 			    const char *fmt, ...) __printf(3, 4);
57 int iwl_fw_start_dbg_conf(struct iwl_fw_runtime *fwrt, u8 id);
58 
59 #define iwl_fw_dbg_trigger_enabled(fw, id) ({			\
60 	void *__dbg_trigger = (fw)->dbg.trigger_tlv[(id)];	\
61 	unlikely(__dbg_trigger);				\
62 })
63 
64 static inline struct iwl_fw_dbg_trigger_tlv*
65 _iwl_fw_dbg_get_trigger(const struct iwl_fw *fw, enum iwl_fw_dbg_trigger id)
66 {
67 	return fw->dbg.trigger_tlv[id];
68 }
69 
70 #define iwl_fw_dbg_get_trigger(fw, id) ({			\
71 	BUILD_BUG_ON(!__builtin_constant_p(id));		\
72 	BUILD_BUG_ON((id) >= FW_DBG_TRIGGER_MAX);		\
73 	_iwl_fw_dbg_get_trigger((fw), (id));			\
74 })
75 
76 static inline bool
77 iwl_fw_dbg_trigger_vif_match(struct iwl_fw_dbg_trigger_tlv *trig,
78 			     struct wireless_dev *wdev)
79 {
80 	u32 trig_vif = le32_to_cpu(trig->vif_type);
81 
82 	return trig_vif == IWL_FW_DBG_CONF_VIF_ANY ||
83 	       wdev->iftype == trig_vif;
84 }
85 
86 static inline bool
87 iwl_fw_dbg_trigger_stop_conf_match(struct iwl_fw_runtime *fwrt,
88 				   struct iwl_fw_dbg_trigger_tlv *trig)
89 {
90 	return ((trig->mode & IWL_FW_DBG_TRIGGER_STOP) &&
91 		(fwrt->dump.conf == FW_DBG_INVALID ||
92 		(BIT(fwrt->dump.conf) & le32_to_cpu(trig->stop_conf_ids))));
93 }
94 
95 static inline bool
96 iwl_fw_dbg_no_trig_window(struct iwl_fw_runtime *fwrt, u32 id, u32 dis_usec)
97 {
98 	unsigned long wind_jiff = usecs_to_jiffies(dis_usec);
99 
100 	/* If this is the first event checked, jump to update start ts */
101 	if (fwrt->dump.non_collect_ts_start[id] &&
102 	    (time_after(fwrt->dump.non_collect_ts_start[id] + wind_jiff,
103 			jiffies)))
104 		return true;
105 
106 	fwrt->dump.non_collect_ts_start[id] = jiffies;
107 	return false;
108 }
109 
110 static inline bool
111 iwl_fw_dbg_trigger_check_stop(struct iwl_fw_runtime *fwrt,
112 			      struct wireless_dev *wdev,
113 			      struct iwl_fw_dbg_trigger_tlv *trig)
114 {
115 	u32 usec = le16_to_cpu(trig->trig_dis_ms) * USEC_PER_MSEC;
116 
117 	if (wdev && !iwl_fw_dbg_trigger_vif_match(trig, wdev))
118 		return false;
119 
120 	if (iwl_fw_dbg_no_trig_window(fwrt, le32_to_cpu(trig->id), usec)) {
121 		IWL_WARN(fwrt, "Trigger %d occurred while no-collect window.\n",
122 			 trig->id);
123 		return false;
124 	}
125 
126 	return iwl_fw_dbg_trigger_stop_conf_match(fwrt, trig);
127 }
128 
129 static inline struct iwl_fw_dbg_trigger_tlv*
130 _iwl_fw_dbg_trigger_on(struct iwl_fw_runtime *fwrt,
131 		       struct wireless_dev *wdev,
132 		       const enum iwl_fw_dbg_trigger id)
133 {
134 	struct iwl_fw_dbg_trigger_tlv *trig;
135 
136 	if (iwl_trans_dbg_ini_valid(fwrt->trans))
137 		return NULL;
138 
139 	if (!iwl_fw_dbg_trigger_enabled(fwrt->fw, id))
140 		return NULL;
141 
142 	trig = _iwl_fw_dbg_get_trigger(fwrt->fw, id);
143 
144 	if (!iwl_fw_dbg_trigger_check_stop(fwrt, wdev, trig))
145 		return NULL;
146 
147 	return trig;
148 }
149 
150 #define iwl_fw_dbg_trigger_on(fwrt, wdev, id) ({		\
151 	BUILD_BUG_ON(!__builtin_constant_p(id));		\
152 	BUILD_BUG_ON((id) >= FW_DBG_TRIGGER_MAX);		\
153 	_iwl_fw_dbg_trigger_on((fwrt), (wdev), (id));		\
154 })
155 
156 static inline void
157 _iwl_fw_dbg_trigger_simple_stop(struct iwl_fw_runtime *fwrt,
158 				struct wireless_dev *wdev,
159 				struct iwl_fw_dbg_trigger_tlv *trigger)
160 {
161 	if (!trigger)
162 		return;
163 
164 	if (!iwl_fw_dbg_trigger_check_stop(fwrt, wdev, trigger))
165 		return;
166 
167 	iwl_fw_dbg_collect_trig(fwrt, trigger, NULL);
168 }
169 
170 #define iwl_fw_dbg_trigger_simple_stop(fwrt, wdev, trig)	\
171 	_iwl_fw_dbg_trigger_simple_stop((fwrt), (wdev),		\
172 					iwl_fw_dbg_get_trigger((fwrt)->fw,\
173 							       (trig)))
174 void iwl_fw_dbg_stop_restart_recording(struct iwl_fw_runtime *fwrt,
175 				       struct iwl_fw_dbg_params *params,
176 				       bool stop);
177 
178 #ifdef CONFIG_IWLWIFI_DEBUGFS
179 static inline void iwl_fw_set_dbg_rec_on(struct iwl_fw_runtime *fwrt)
180 {
181 	if (fwrt->cur_fw_img == IWL_UCODE_REGULAR &&
182 	    (fwrt->fw->dbg.dest_tlv ||
183 	     fwrt->trans->dbg.ini_dest != IWL_FW_INI_LOCATION_INVALID))
184 		fwrt->trans->dbg.rec_on = true;
185 }
186 #endif
187 
188 static inline void iwl_fw_dump_conf_clear(struct iwl_fw_runtime *fwrt)
189 {
190 	fwrt->dump.conf = FW_DBG_INVALID;
191 }
192 
193 void iwl_fw_error_dump_wk(struct work_struct *work);
194 
195 static inline bool iwl_fw_dbg_type_on(struct iwl_fw_runtime *fwrt, u32 type)
196 {
197 	return (fwrt->fw->dbg.dump_mask & BIT(type));
198 }
199 
200 static inline bool iwl_fw_dbg_is_d3_debug_enabled(struct iwl_fw_runtime *fwrt)
201 {
202 	return fw_has_capa(&fwrt->fw->ucode_capa,
203 			   IWL_UCODE_TLV_CAPA_D3_DEBUG) &&
204 		fwrt->trans->cfg->d3_debug_data_length && fwrt->ops &&
205 		fwrt->ops->d3_debug_enable &&
206 		fwrt->ops->d3_debug_enable(fwrt->ops_ctx) &&
207 		iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_D3_DEBUG_DATA);
208 }
209 
210 static inline bool iwl_fw_dbg_is_paging_enabled(struct iwl_fw_runtime *fwrt)
211 {
212 	return iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_PAGING) &&
213 		!fwrt->trans->trans_cfg->gen2 &&
214 		fwrt->cur_fw_img < IWL_UCODE_TYPE_MAX &&
215 		fwrt->fw->img[fwrt->cur_fw_img].paging_mem_size &&
216 		fwrt->fw_paging_db[0].fw_paging_block;
217 }
218 
219 void iwl_fw_dbg_read_d3_debug_data(struct iwl_fw_runtime *fwrt);
220 
221 static inline void iwl_fw_flush_dumps(struct iwl_fw_runtime *fwrt)
222 {
223 	int i;
224 
225 	iwl_dbg_tlv_del_timers(fwrt->trans);
226 	for (i = 0; i < IWL_FW_RUNTIME_DUMP_WK_NUM; i++)
227 		flush_delayed_work(&fwrt->dump.wks[i].wk);
228 }
229 
230 #ifdef CONFIG_IWLWIFI_DEBUGFS
231 static inline void iwl_fw_cancel_timestamp(struct iwl_fw_runtime *fwrt)
232 {
233 	fwrt->timestamp.delay = 0;
234 	cancel_delayed_work_sync(&fwrt->timestamp.wk);
235 }
236 
237 void iwl_fw_trigger_timestamp(struct iwl_fw_runtime *fwrt, u32 delay);
238 
239 static inline void iwl_fw_suspend_timestamp(struct iwl_fw_runtime *fwrt)
240 {
241 	cancel_delayed_work_sync(&fwrt->timestamp.wk);
242 }
243 
244 static inline void iwl_fw_resume_timestamp(struct iwl_fw_runtime *fwrt)
245 {
246 	if (!fwrt->timestamp.delay)
247 		return;
248 
249 	schedule_delayed_work(&fwrt->timestamp.wk,
250 			      round_jiffies_relative(fwrt->timestamp.delay));
251 }
252 
253 #else
254 
255 static inline void iwl_fw_cancel_timestamp(struct iwl_fw_runtime *fwrt) {}
256 
257 static inline void iwl_fw_trigger_timestamp(struct iwl_fw_runtime *fwrt,
258 					    u32 delay) {}
259 
260 static inline void iwl_fw_suspend_timestamp(struct iwl_fw_runtime *fwrt) {}
261 
262 static inline void iwl_fw_resume_timestamp(struct iwl_fw_runtime *fwrt) {}
263 
264 #endif /* CONFIG_IWLWIFI_DEBUGFS */
265 
266 void iwl_fw_dbg_stop_sync(struct iwl_fw_runtime *fwrt);
267 
268 static inline void iwl_fw_lmac1_set_alive_err_table(struct iwl_trans *trans,
269 						    u32 lmac_error_event_table)
270 {
271 	if (!(trans->dbg.error_event_table_tlv_status &
272 	      IWL_ERROR_EVENT_TABLE_LMAC1) ||
273 	    WARN_ON(trans->dbg.lmac_error_event_table[0] !=
274 		    lmac_error_event_table))
275 		trans->dbg.lmac_error_event_table[0] = lmac_error_event_table;
276 }
277 
278 static inline void iwl_fw_umac_set_alive_err_table(struct iwl_trans *trans,
279 						   u32 umac_error_event_table)
280 {
281 	if (!(trans->dbg.error_event_table_tlv_status &
282 	      IWL_ERROR_EVENT_TABLE_UMAC) ||
283 	    WARN_ON(trans->dbg.umac_error_event_table !=
284 		    umac_error_event_table))
285 		trans->dbg.umac_error_event_table = umac_error_event_table;
286 }
287 
288 static inline void iwl_fw_error_collect(struct iwl_fw_runtime *fwrt, bool sync)
289 {
290 	enum iwl_fw_ini_time_point tp_id;
291 
292 	if (!iwl_trans_dbg_ini_valid(fwrt->trans)) {
293 		iwl_fw_dbg_collect_desc(fwrt, &iwl_dump_desc_assert, false, 0);
294 		return;
295 	}
296 
297 	if (fwrt->trans->dbg.hw_error) {
298 		tp_id = IWL_FW_INI_TIME_POINT_FW_HW_ERROR;
299 		fwrt->trans->dbg.hw_error = false;
300 	} else {
301 		tp_id = IWL_FW_INI_TIME_POINT_FW_ASSERT;
302 	}
303 
304 	_iwl_dbg_tlv_time_point(fwrt, tp_id, NULL, sync);
305 }
306 
307 void iwl_fw_error_print_fseq_regs(struct iwl_fw_runtime *fwrt);
308 
309 static inline void iwl_fwrt_update_fw_versions(struct iwl_fw_runtime *fwrt,
310 					       struct iwl_lmac_alive *lmac,
311 					       struct iwl_umac_alive *umac)
312 {
313 	if (lmac) {
314 		fwrt->dump.fw_ver.type = lmac->ver_type;
315 		fwrt->dump.fw_ver.subtype = lmac->ver_subtype;
316 		fwrt->dump.fw_ver.lmac_major = le32_to_cpu(lmac->ucode_major);
317 		fwrt->dump.fw_ver.lmac_minor = le32_to_cpu(lmac->ucode_minor);
318 	}
319 
320 	if (umac) {
321 		fwrt->dump.fw_ver.umac_major = le32_to_cpu(umac->umac_major);
322 		fwrt->dump.fw_ver.umac_minor = le32_to_cpu(umac->umac_minor);
323 	}
324 }
325 
326 void iwl_fwrt_dump_error_logs(struct iwl_fw_runtime *fwrt);
327 void iwl_send_dbg_dump_complete_cmd(struct iwl_fw_runtime *fwrt,
328 				    u32 timepoint,
329 				    u32 timepoint_data);
330 #endif  /* __iwl_fw_dbg_h__ */
331