drivers/net/wireless/intel/iwlwifi/fw/dbg.h

   1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
   2 /*
   3  * Copyright (C) 2005-2014, 2018-2019, 2021 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 #endif  /* __iwl_fw_dbg_h__ */