// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* * Copyright (C) 2018-2021 Intel Corporation */ #include #include "iwl-drv.h" #include "iwl-trans.h" #include "iwl-dbg-tlv.h" #include "fw/dbg.h" #include "fw/runtime.h" /** * enum iwl_dbg_tlv_type - debug TLV types * @IWL_DBG_TLV_TYPE_DEBUG_INFO: debug info TLV * @IWL_DBG_TLV_TYPE_BUF_ALLOC: buffer allocation TLV * @IWL_DBG_TLV_TYPE_HCMD: host command TLV * @IWL_DBG_TLV_TYPE_REGION: region TLV * @IWL_DBG_TLV_TYPE_TRIGGER: trigger TLV * @IWL_DBG_TLV_TYPE_NUM: number of debug TLVs */ enum iwl_dbg_tlv_type { IWL_DBG_TLV_TYPE_DEBUG_INFO = IWL_UCODE_TLV_TYPE_DEBUG_INFO - IWL_UCODE_TLV_DEBUG_BASE, IWL_DBG_TLV_TYPE_BUF_ALLOC, IWL_DBG_TLV_TYPE_HCMD, IWL_DBG_TLV_TYPE_REGION, IWL_DBG_TLV_TYPE_TRIGGER, IWL_DBG_TLV_TYPE_NUM, }; /** * struct iwl_dbg_tlv_ver_data - debug TLV version struct * @min_ver: min version supported * @max_ver: max version supported */ struct iwl_dbg_tlv_ver_data { int min_ver; int max_ver; }; /** * struct iwl_dbg_tlv_timer_node - timer node struct * @list: list of &struct iwl_dbg_tlv_timer_node * @timer: timer * @fwrt: &struct iwl_fw_runtime * @tlv: TLV attach to the timer node */ struct iwl_dbg_tlv_timer_node { struct list_head list; struct timer_list timer; struct iwl_fw_runtime *fwrt; struct iwl_ucode_tlv *tlv; }; static const struct iwl_dbg_tlv_ver_data dbg_ver_table[IWL_DBG_TLV_TYPE_NUM] = { [IWL_DBG_TLV_TYPE_DEBUG_INFO] = {.min_ver = 1, .max_ver = 1,}, [IWL_DBG_TLV_TYPE_BUF_ALLOC] = {.min_ver = 1, .max_ver = 1,}, [IWL_DBG_TLV_TYPE_HCMD] = {.min_ver = 1, .max_ver = 1,}, [IWL_DBG_TLV_TYPE_REGION] = {.min_ver = 1, .max_ver = 2,}, [IWL_DBG_TLV_TYPE_TRIGGER] = {.min_ver = 1, .max_ver = 1,}, }; static int iwl_dbg_tlv_add(const struct iwl_ucode_tlv *tlv, struct list_head *list) { u32 len = le32_to_cpu(tlv->length); struct iwl_dbg_tlv_node *node; node = kzalloc(sizeof(*node) + len, GFP_KERNEL); if (!node) return -ENOMEM; memcpy(&node->tlv, tlv, sizeof(node->tlv) + len); list_add_tail(&node->list, list); return 0; } static bool iwl_dbg_tlv_ver_support(const struct iwl_ucode_tlv *tlv) { const struct iwl_fw_ini_header *hdr = (const void *)&tlv->data[0]; u32 type = le32_to_cpu(tlv->type); u32 tlv_idx = type - IWL_UCODE_TLV_DEBUG_BASE; u32 ver = le32_to_cpu(hdr->version); if (ver < dbg_ver_table[tlv_idx].min_ver || ver > dbg_ver_table[tlv_idx].max_ver) return false; return true; } static int iwl_dbg_tlv_alloc_debug_info(struct iwl_trans *trans, const struct iwl_ucode_tlv *tlv) { const struct iwl_fw_ini_debug_info_tlv *debug_info = (const void *)tlv->data; if (le32_to_cpu(tlv->length) != sizeof(*debug_info)) return -EINVAL; IWL_DEBUG_FW(trans, "WRT: Loading debug cfg: %s\n", debug_info->debug_cfg_name); return iwl_dbg_tlv_add(tlv, &trans->dbg.debug_info_tlv_list); } static int iwl_dbg_tlv_alloc_buf_alloc(struct iwl_trans *trans, const struct iwl_ucode_tlv *tlv) { const struct iwl_fw_ini_allocation_tlv *alloc = (const void *)tlv->data; u32 buf_location; u32 alloc_id; if (le32_to_cpu(tlv->length) != sizeof(*alloc)) return -EINVAL; buf_location = le32_to_cpu(alloc->buf_location); alloc_id = le32_to_cpu(alloc->alloc_id); if (buf_location == IWL_FW_INI_LOCATION_INVALID || buf_location >= IWL_FW_INI_LOCATION_NUM) goto err; if (alloc_id == IWL_FW_INI_ALLOCATION_INVALID || alloc_id >= IWL_FW_INI_ALLOCATION_NUM) goto err; if (buf_location == IWL_FW_INI_LOCATION_NPK_PATH && alloc_id != IWL_FW_INI_ALLOCATION_ID_DBGC1) goto err; if (buf_location == IWL_FW_INI_LOCATION_SRAM_PATH && alloc_id != IWL_FW_INI_ALLOCATION_ID_DBGC1) goto err; if (buf_location == IWL_FW_INI_LOCATION_DRAM_PATH && alloc->req_size == 0) { IWL_ERR(trans, "WRT: Invalid DRAM buffer allocation requested size (0)\n"); return -EINVAL; } trans->dbg.fw_mon_cfg[alloc_id] = *alloc; return 0; err: IWL_ERR(trans, "WRT: Invalid allocation id %u and/or location id %u for allocation TLV\n", alloc_id, buf_location); return -EINVAL; } static int iwl_dbg_tlv_alloc_hcmd(struct iwl_trans *trans, const struct iwl_ucode_tlv *tlv) { const struct iwl_fw_ini_hcmd_tlv *hcmd = (const void *)tlv->data; u32 tp = le32_to_cpu(hcmd->time_point); if (le32_to_cpu(tlv->length) <= sizeof(*hcmd)) return -EINVAL; /* Host commands can not be sent in early time point since the FW * is not ready */ if (tp == IWL_FW_INI_TIME_POINT_INVALID || tp >= IWL_FW_INI_TIME_POINT_NUM || tp == IWL_FW_INI_TIME_POINT_EARLY) { IWL_ERR(trans, "WRT: Invalid time point %u for host command TLV\n", tp); return -EINVAL; } return iwl_dbg_tlv_add(tlv, &trans->dbg.time_point[tp].hcmd_list); } static int iwl_dbg_tlv_alloc_region(struct iwl_trans *trans, const struct iwl_ucode_tlv *tlv) { const struct iwl_fw_ini_region_tlv *reg = (const void *)tlv->data; struct iwl_ucode_tlv **active_reg; u32 id = le32_to_cpu(reg->id); u32 type = le32_to_cpu(reg->type); u32 tlv_len = sizeof(*tlv) + le32_to_cpu(tlv->length); /* * The higher part of the ID in version 2 is irrelevant for * us, so mask it out. */ if (le32_to_cpu(reg->hdr.version) == 2) id &= IWL_FW_INI_REGION_V2_MASK; if (le32_to_cpu(tlv->length) < sizeof(*reg)) return -EINVAL; /* for safe use of a string from FW, limit it to IWL_FW_INI_MAX_NAME */ IWL_DEBUG_FW(trans, "WRT: parsing region: %.*s\n", IWL_FW_INI_MAX_NAME, reg->name); if (id >= IWL_FW_INI_MAX_REGION_ID) { IWL_ERR(trans, "WRT: Invalid region id %u\n", id); return -EINVAL; } if (type <= IWL_FW_INI_REGION_INVALID || type >= IWL_FW_INI_REGION_NUM) { IWL_ERR(trans, "WRT: Invalid region type %u\n", type); return -EINVAL; } if (type == IWL_FW_INI_REGION_PCI_IOSF_CONFIG && !trans->ops->read_config32) { IWL_ERR(trans, "WRT: Unsupported region type %u\n", type); return -EOPNOTSUPP; } active_reg = &trans->dbg.active_regions[id]; if (*active_reg) { IWL_WARN(trans, "WRT: Overriding region id %u\n", id); kfree(*active_reg); } *active_reg = kmemdup(tlv, tlv_len, GFP_KERNEL); if (!*active_reg) return -ENOMEM; IWL_DEBUG_FW(trans, "WRT: Enabling region id %u type %u\n", id, type); return 0; } static int iwl_dbg_tlv_alloc_trigger(struct iwl_trans *trans, const struct iwl_ucode_tlv *tlv) { const struct iwl_fw_ini_trigger_tlv *trig = (const void *)tlv->data; struct iwl_fw_ini_trigger_tlv *dup_trig; u32 tp = le32_to_cpu(trig->time_point); struct iwl_ucode_tlv *dup = NULL; int ret; if (le32_to_cpu(tlv->length) < sizeof(*trig)) return -EINVAL; if (tp <= IWL_FW_INI_TIME_POINT_INVALID || tp >= IWL_FW_INI_TIME_POINT_NUM) { IWL_ERR(trans, "WRT: Invalid time point %u for trigger TLV\n", tp); return -EINVAL; } if (!le32_to_cpu(trig->occurrences)) { dup = kmemdup(tlv, sizeof(*tlv) + le32_to_cpu(tlv->length), GFP_KERNEL); if (!dup) return -ENOMEM; dup_trig = (void *)dup->data; dup_trig->occurrences = cpu_to_le32(-1); tlv = dup; } ret = iwl_dbg_tlv_add(tlv, &trans->dbg.time_point[tp].trig_list); kfree(dup); return ret; } static int (*dbg_tlv_alloc[])(struct iwl_trans *trans, const struct iwl_ucode_tlv *tlv) = { [IWL_DBG_TLV_TYPE_DEBUG_INFO] = iwl_dbg_tlv_alloc_debug_info, [IWL_DBG_TLV_TYPE_BUF_ALLOC] = iwl_dbg_tlv_alloc_buf_alloc, [IWL_DBG_TLV_TYPE_HCMD] = iwl_dbg_tlv_alloc_hcmd, [IWL_DBG_TLV_TYPE_REGION] = iwl_dbg_tlv_alloc_region, [IWL_DBG_TLV_TYPE_TRIGGER] = iwl_dbg_tlv_alloc_trigger, }; void iwl_dbg_tlv_alloc(struct iwl_trans *trans, const struct iwl_ucode_tlv *tlv, bool ext) { const struct iwl_fw_ini_header *hdr = (const void *)&tlv->data[0]; u32 type = le32_to_cpu(tlv->type); u32 tlv_idx = type - IWL_UCODE_TLV_DEBUG_BASE; u32 domain = le32_to_cpu(hdr->domain); enum iwl_ini_cfg_state *cfg_state = ext ? &trans->dbg.external_ini_cfg : &trans->dbg.internal_ini_cfg; int ret; if (domain != IWL_FW_INI_DOMAIN_ALWAYS_ON && !(domain & trans->dbg.domains_bitmap)) { IWL_DEBUG_FW(trans, "WRT: Skipping TLV with disabled domain 0x%0x (0x%0x)\n", domain, trans->dbg.domains_bitmap); return; } if (tlv_idx >= ARRAY_SIZE(dbg_tlv_alloc) || !dbg_tlv_alloc[tlv_idx]) { IWL_ERR(trans, "WRT: Unsupported TLV type 0x%x\n", type); goto out_err; } if (!iwl_dbg_tlv_ver_support(tlv)) { IWL_ERR(trans, "WRT: Unsupported TLV 0x%x version %u\n", type, le32_to_cpu(hdr->version)); goto out_err; } ret = dbg_tlv_alloc[tlv_idx](trans, tlv); if (ret) { IWL_ERR(trans, "WRT: Failed to allocate TLV 0x%x, ret %d, (ext=%d)\n", type, ret, ext); goto out_err; } if (*cfg_state == IWL_INI_CFG_STATE_NOT_LOADED) *cfg_state = IWL_INI_CFG_STATE_LOADED; return; out_err: *cfg_state = IWL_INI_CFG_STATE_CORRUPTED; } void iwl_dbg_tlv_del_timers(struct iwl_trans *trans) { struct list_head *timer_list = &trans->dbg.periodic_trig_list; struct iwl_dbg_tlv_timer_node *node, *tmp; list_for_each_entry_safe(node, tmp, timer_list, list) { del_timer_sync(&node->timer); list_del(&node->list); kfree(node); } } IWL_EXPORT_SYMBOL(iwl_dbg_tlv_del_timers); static void iwl_dbg_tlv_fragments_free(struct iwl_trans *trans, enum iwl_fw_ini_allocation_id alloc_id) { struct iwl_fw_mon *fw_mon; int i; if (alloc_id <= IWL_FW_INI_ALLOCATION_INVALID || alloc_id >= IWL_FW_INI_ALLOCATION_NUM) return; fw_mon = &trans->dbg.fw_mon_ini[alloc_id]; for (i = 0; i < fw_mon->num_frags; i++) { struct iwl_dram_data *frag = &fw_mon->frags[i]; dma_free_coherent(trans->dev, frag->size, frag->block, frag->physical); frag->physical = 0; frag->block = NULL; frag->size = 0; } kfree(fw_mon->frags); fw_mon->frags = NULL; fw_mon->num_frags = 0; } void iwl_dbg_tlv_free(struct iwl_trans *trans) { struct iwl_dbg_tlv_node *tlv_node, *tlv_node_tmp; int i; iwl_dbg_tlv_del_timers(trans); for (i = 0; i < ARRAY_SIZE(trans->dbg.active_regions); i++) { struct iwl_ucode_tlv **active_reg = &trans->dbg.active_regions[i]; kfree(*active_reg); *active_reg = NULL; } list_for_each_entry_safe(tlv_node, tlv_node_tmp, &trans->dbg.debug_info_tlv_list, list) { list_del(&tlv_node->list); kfree(tlv_node); } for (i = 0; i < ARRAY_SIZE(trans->dbg.time_point); i++) { struct iwl_dbg_tlv_time_point_data *tp = &trans->dbg.time_point[i]; list_for_each_entry_safe(tlv_node, tlv_node_tmp, &tp->trig_list, list) { list_del(&tlv_node->list); kfree(tlv_node); } list_for_each_entry_safe(tlv_node, tlv_node_tmp, &tp->hcmd_list, list) { list_del(&tlv_node->list); kfree(tlv_node); } list_for_each_entry_safe(tlv_node, tlv_node_tmp, &tp->active_trig_list, list) { list_del(&tlv_node->list); kfree(tlv_node); } } for (i = 0; i < ARRAY_SIZE(trans->dbg.fw_mon_ini); i++) iwl_dbg_tlv_fragments_free(trans, i); } static int iwl_dbg_tlv_parse_bin(struct iwl_trans *trans, const u8 *data, size_t len) { const struct iwl_ucode_tlv *tlv; u32 tlv_len; while (len >= sizeof(*tlv)) { len -= sizeof(*tlv); tlv = (void *)data; tlv_len = le32_to_cpu(tlv->length); if (len < tlv_len) { IWL_ERR(trans, "invalid TLV len: %zd/%u\n", len, tlv_len); return -EINVAL; } len -= ALIGN(tlv_len, 4); data += sizeof(*tlv) + ALIGN(tlv_len, 4); iwl_dbg_tlv_alloc(trans, tlv, true); } return 0; } void iwl_dbg_tlv_load_bin(struct device *dev, struct iwl_trans *trans) { const struct firmware *fw; const char *yoyo_bin = "iwl-debug-yoyo.bin"; int res; if (!iwlwifi_mod_params.enable_ini || trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_9000) return; res = firmware_request_nowarn(&fw, yoyo_bin, dev); IWL_DEBUG_FW(trans, "%s %s\n", res ? "didn't load" : "loaded", yoyo_bin); if (res) return; iwl_dbg_tlv_parse_bin(trans, fw->data, fw->size); release_firmware(fw); } void iwl_dbg_tlv_init(struct iwl_trans *trans) { int i; INIT_LIST_HEAD(&trans->dbg.debug_info_tlv_list); INIT_LIST_HEAD(&trans->dbg.periodic_trig_list); for (i = 0; i < ARRAY_SIZE(trans->dbg.time_point); i++) { struct iwl_dbg_tlv_time_point_data *tp = &trans->dbg.time_point[i]; INIT_LIST_HEAD(&tp->trig_list); INIT_LIST_HEAD(&tp->hcmd_list); INIT_LIST_HEAD(&tp->active_trig_list); } } static int iwl_dbg_tlv_alloc_fragment(struct iwl_fw_runtime *fwrt, struct iwl_dram_data *frag, u32 pages) { void *block = NULL; dma_addr_t physical; if (!frag || frag->size || !pages) return -EIO; /* * We try to allocate as many pages as we can, starting with * the requested amount and going down until we can allocate * something. Because of DIV_ROUND_UP(), pages will never go * down to 0 and stop the loop, so stop when pages reaches 1, * which is too small anyway. */ while (pages > 1) { block = dma_alloc_coherent(fwrt->dev, pages * PAGE_SIZE, &physical, GFP_KERNEL | __GFP_NOWARN); if (block) break; IWL_WARN(fwrt, "WRT: Failed to allocate fragment size %lu\n", pages * PAGE_SIZE); pages = DIV_ROUND_UP(pages, 2); } if (!block) return -ENOMEM; frag->physical = physical; frag->block = block; frag->size = pages * PAGE_SIZE; return pages; } static int iwl_dbg_tlv_alloc_fragments(struct iwl_fw_runtime *fwrt, enum iwl_fw_ini_allocation_id alloc_id) { struct iwl_fw_mon *fw_mon; struct iwl_fw_ini_allocation_tlv *fw_mon_cfg; u32 num_frags, remain_pages, frag_pages; int i; if (alloc_id < IWL_FW_INI_ALLOCATION_INVALID || alloc_id >= IWL_FW_INI_ALLOCATION_NUM) return -EIO; fw_mon_cfg = &fwrt->trans->dbg.fw_mon_cfg[alloc_id]; fw_mon = &fwrt->trans->dbg.fw_mon_ini[alloc_id]; if (fw_mon->num_frags || fw_mon_cfg->buf_location != cpu_to_le32(IWL_FW_INI_LOCATION_DRAM_PATH)) return 0; num_frags = le32_to_cpu(fw_mon_cfg->max_frags_num); if (!fw_has_capa(&fwrt->fw->ucode_capa, IWL_UCODE_TLV_CAPA_DBG_BUF_ALLOC_CMD_SUPP)) { if (alloc_id != IWL_FW_INI_ALLOCATION_ID_DBGC1) return -EIO; num_frags = 1; } remain_pages = DIV_ROUND_UP(le32_to_cpu(fw_mon_cfg->req_size), PAGE_SIZE); num_frags = min_t(u32, num_frags, BUF_ALLOC_MAX_NUM_FRAGS); num_frags = min_t(u32, num_frags, remain_pages); frag_pages = DIV_ROUND_UP(remain_pages, num_frags); fw_mon->frags = kcalloc(num_frags, sizeof(*fw_mon->frags), GFP_KERNEL); if (!fw_mon->frags) return -ENOMEM; for (i = 0; i < num_frags; i++) { int pages = min_t(u32, frag_pages, remain_pages); IWL_DEBUG_FW(fwrt, "WRT: Allocating DRAM buffer (alloc_id=%u, fragment=%u, size=0x%lx)\n", alloc_id, i, pages * PAGE_SIZE); pages = iwl_dbg_tlv_alloc_fragment(fwrt, &fw_mon->frags[i], pages); if (pages < 0) { u32 alloc_size = le32_to_cpu(fw_mon_cfg->req_size) - (remain_pages * PAGE_SIZE); if (alloc_size < le32_to_cpu(fw_mon_cfg->min_size)) { iwl_dbg_tlv_fragments_free(fwrt->trans, alloc_id); return pages; } break; } remain_pages -= pages; fw_mon->num_frags++; } return 0; } static int iwl_dbg_tlv_apply_buffer(struct iwl_fw_runtime *fwrt, enum iwl_fw_ini_allocation_id alloc_id) { struct iwl_fw_mon *fw_mon; u32 remain_frags, num_commands; int i, fw_mon_idx = 0; if (!fw_has_capa(&fwrt->fw->ucode_capa, IWL_UCODE_TLV_CAPA_DBG_BUF_ALLOC_CMD_SUPP)) return 0; if (alloc_id < IWL_FW_INI_ALLOCATION_INVALID || alloc_id >= IWL_FW_INI_ALLOCATION_NUM) return -EIO; if (le32_to_cpu(fwrt->trans->dbg.fw_mon_cfg[alloc_id].buf_location) != IWL_FW_INI_LOCATION_DRAM_PATH) return 0; fw_mon = &fwrt->trans->dbg.fw_mon_ini[alloc_id]; /* the first fragment of DBGC1 is given to the FW via register * or context info */ if (alloc_id == IWL_FW_INI_ALLOCATION_ID_DBGC1) fw_mon_idx++; remain_frags = fw_mon->num_frags - fw_mon_idx; if (!remain_frags) return 0; num_commands = DIV_ROUND_UP(remain_frags, BUF_ALLOC_MAX_NUM_FRAGS); IWL_DEBUG_FW(fwrt, "WRT: Applying DRAM destination (alloc_id=%u)\n", alloc_id); for (i = 0; i < num_commands; i++) { u32 num_frags = min_t(u32, remain_frags, BUF_ALLOC_MAX_NUM_FRAGS); struct iwl_buf_alloc_cmd data = { .alloc_id = cpu_to_le32(alloc_id), .num_frags = cpu_to_le32(num_frags), .buf_location = cpu_to_le32(IWL_FW_INI_LOCATION_DRAM_PATH), }; struct iwl_host_cmd hcmd = { .id = WIDE_ID(DEBUG_GROUP, BUFFER_ALLOCATION), .data[0] = &data, .len[0] = sizeof(data), .flags = CMD_SEND_IN_RFKILL, }; int ret, j; for (j = 0; j < num_frags; j++) { struct iwl_buf_alloc_frag *frag = &data.frags[j]; struct iwl_dram_data *fw_mon_frag = &fw_mon->frags[fw_mon_idx++]; frag->addr = cpu_to_le64(fw_mon_frag->physical); frag->size = cpu_to_le32(fw_mon_frag->size); } ret = iwl_trans_send_cmd(fwrt->trans, &hcmd); if (ret) return ret; remain_frags -= num_frags; } return 0; } static void iwl_dbg_tlv_apply_buffers(struct iwl_fw_runtime *fwrt) { int ret, i; for (i = 0; i < IWL_FW_INI_ALLOCATION_NUM; i++) { ret = iwl_dbg_tlv_apply_buffer(fwrt, i); if (ret) IWL_WARN(fwrt, "WRT: Failed to apply DRAM buffer for allocation id %d, ret=%d\n", i, ret); } } static void iwl_dbg_tlv_send_hcmds(struct iwl_fw_runtime *fwrt, struct list_head *hcmd_list) { struct iwl_dbg_tlv_node *node; list_for_each_entry(node, hcmd_list, list) { struct iwl_fw_ini_hcmd_tlv *hcmd = (void *)node->tlv.data; struct iwl_fw_ini_hcmd *hcmd_data = &hcmd->hcmd; u16 hcmd_len = le32_to_cpu(node->tlv.length) - sizeof(*hcmd); struct iwl_host_cmd cmd = { .id = WIDE_ID(hcmd_data->group, hcmd_data->id), .len = { hcmd_len, }, .data = { hcmd_data->data, }, }; iwl_trans_send_cmd(fwrt->trans, &cmd); } } static void iwl_dbg_tlv_periodic_trig_handler(struct timer_list *t) { struct iwl_dbg_tlv_timer_node *timer_node = from_timer(timer_node, t, timer); struct iwl_fwrt_dump_data dump_data = { .trig = (void *)timer_node->tlv->data, }; int ret; ret = iwl_fw_dbg_ini_collect(timer_node->fwrt, &dump_data, false); if (!ret || ret == -EBUSY) { u32 occur = le32_to_cpu(dump_data.trig->occurrences); u32 collect_interval = le32_to_cpu(dump_data.trig->data[0]); if (!occur) return; mod_timer(t, jiffies + msecs_to_jiffies(collect_interval)); } } static void iwl_dbg_tlv_set_periodic_trigs(struct iwl_fw_runtime *fwrt) { struct iwl_dbg_tlv_node *node; struct list_head *trig_list = &fwrt->trans->dbg.time_point[IWL_FW_INI_TIME_POINT_PERIODIC].active_trig_list; list_for_each_entry(node, trig_list, list) { struct iwl_fw_ini_trigger_tlv *trig = (void *)node->tlv.data; struct iwl_dbg_tlv_timer_node *timer_node; u32 occur = le32_to_cpu(trig->occurrences), collect_interval; u32 min_interval = 100; if (!occur) continue; /* make sure there is at least one dword of data for the * interval value */ if (le32_to_cpu(node->tlv.length) < sizeof(*trig) + sizeof(__le32)) { IWL_ERR(fwrt, "WRT: Invalid periodic trigger data was not given\n"); continue; } if (le32_to_cpu(trig->data[0]) < min_interval) { IWL_WARN(fwrt, "WRT: Override min interval from %u to %u msec\n", le32_to_cpu(trig->data[0]), min_interval); trig->data[0] = cpu_to_le32(min_interval); } collect_interval = le32_to_cpu(trig->data[0]); timer_node = kzalloc(sizeof(*timer_node), GFP_KERNEL); if (!timer_node) { IWL_ERR(fwrt, "WRT: Failed to allocate periodic trigger\n"); continue; } timer_node->fwrt = fwrt; timer_node->tlv = &node->tlv; timer_setup(&timer_node->timer, iwl_dbg_tlv_periodic_trig_handler, 0); list_add_tail(&timer_node->list, &fwrt->trans->dbg.periodic_trig_list); IWL_DEBUG_FW(fwrt, "WRT: Enabling periodic trigger\n"); mod_timer(&timer_node->timer, jiffies + msecs_to_jiffies(collect_interval)); } } static bool is_trig_data_contained(const struct iwl_ucode_tlv *new, const struct iwl_ucode_tlv *old) { const struct iwl_fw_ini_trigger_tlv *new_trig = (const void *)new->data; const struct iwl_fw_ini_trigger_tlv *old_trig = (const void *)old->data; const __le32 *new_data = new_trig->data, *old_data = old_trig->data; u32 new_dwords_num = iwl_tlv_array_len(new, new_trig, data); u32 old_dwords_num = iwl_tlv_array_len(old, old_trig, data); int i, j; for (i = 0; i < new_dwords_num; i++) { bool match = false; for (j = 0; j < old_dwords_num; j++) { if (new_data[i] == old_data[j]) { match = true; break; } } if (!match) return false; } return true; } static int iwl_dbg_tlv_override_trig_node(struct iwl_fw_runtime *fwrt, struct iwl_ucode_tlv *trig_tlv, struct iwl_dbg_tlv_node *node) { struct iwl_ucode_tlv *node_tlv = &node->tlv; struct iwl_fw_ini_trigger_tlv *node_trig = (void *)node_tlv->data; struct iwl_fw_ini_trigger_tlv *trig = (void *)trig_tlv->data; u32 policy = le32_to_cpu(trig->apply_policy); u32 size = le32_to_cpu(trig_tlv->length); u32 trig_data_len = size - sizeof(*trig); u32 offset = 0; if (!(policy & IWL_FW_INI_APPLY_POLICY_OVERRIDE_DATA)) { u32 data_len = le32_to_cpu(node_tlv->length) - sizeof(*node_trig); IWL_DEBUG_FW(fwrt, "WRT: Appending trigger data (time point %u)\n", le32_to_cpu(trig->time_point)); offset += data_len; size += data_len; } else { IWL_DEBUG_FW(fwrt, "WRT: Overriding trigger data (time point %u)\n", le32_to_cpu(trig->time_point)); } if (size != le32_to_cpu(node_tlv->length)) { struct list_head *prev = node->list.prev; struct iwl_dbg_tlv_node *tmp; list_del(&node->list); tmp = krealloc(node, sizeof(*node) + size, GFP_KERNEL); if (!tmp) { IWL_WARN(fwrt, "WRT: No memory to override trigger (time point %u)\n", le32_to_cpu(trig->time_point)); list_add(&node->list, prev); return -ENOMEM; } list_add(&tmp->list, prev); node_tlv = &tmp->tlv; node_trig = (void *)node_tlv->data; } memcpy((u8 *)node_trig->data + offset, trig->data, trig_data_len); node_tlv->length = cpu_to_le32(size); if (policy & IWL_FW_INI_APPLY_POLICY_OVERRIDE_CFG) { IWL_DEBUG_FW(fwrt, "WRT: Overriding trigger configuration (time point %u)\n", le32_to_cpu(trig->time_point)); /* the first 11 dwords are configuration related */ memcpy(node_trig, trig, sizeof(__le32) * 11); } if (policy & IWL_FW_INI_APPLY_POLICY_OVERRIDE_REGIONS) { IWL_DEBUG_FW(fwrt, "WRT: Overriding trigger regions (time point %u)\n", le32_to_cpu(trig->time_point)); node_trig->regions_mask = trig->regions_mask; } else { IWL_DEBUG_FW(fwrt, "WRT: Appending trigger regions (time point %u)\n", le32_to_cpu(trig->time_point)); node_trig->regions_mask |= trig->regions_mask; } return 0; } static int iwl_dbg_tlv_add_active_trigger(struct iwl_fw_runtime *fwrt, struct list_head *trig_list, struct iwl_ucode_tlv *trig_tlv) { struct iwl_fw_ini_trigger_tlv *trig = (void *)trig_tlv->data; struct iwl_dbg_tlv_node *node, *match = NULL; u32 policy = le32_to_cpu(trig->apply_policy); list_for_each_entry(node, trig_list, list) { if (!(policy & IWL_FW_INI_APPLY_POLICY_MATCH_TIME_POINT)) break; if (!(policy & IWL_FW_INI_APPLY_POLICY_MATCH_DATA) || is_trig_data_contained(trig_tlv, &node->tlv)) { match = node; break; } } if (!match) { IWL_DEBUG_FW(fwrt, "WRT: Enabling trigger (time point %u)\n", le32_to_cpu(trig->time_point)); return iwl_dbg_tlv_add(trig_tlv, trig_list); } return iwl_dbg_tlv_override_trig_node(fwrt, trig_tlv, match); } static void iwl_dbg_tlv_gen_active_trig_list(struct iwl_fw_runtime *fwrt, struct iwl_dbg_tlv_time_point_data *tp) { struct iwl_dbg_tlv_node *node; struct list_head *trig_list = &tp->trig_list; struct list_head *active_trig_list = &tp->active_trig_list; list_for_each_entry(node, trig_list, list) { struct iwl_ucode_tlv *tlv = &node->tlv; iwl_dbg_tlv_add_active_trigger(fwrt, active_trig_list, tlv); } } static bool iwl_dbg_tlv_check_fw_pkt(struct iwl_fw_runtime *fwrt, struct iwl_fwrt_dump_data *dump_data, union iwl_dbg_tlv_tp_data *tp_data, u32 trig_data) { struct iwl_rx_packet *pkt = tp_data->fw_pkt; struct iwl_cmd_header *wanted_hdr = (void *)&trig_data; if (pkt && (pkt->hdr.cmd == wanted_hdr->cmd && pkt->hdr.group_id == wanted_hdr->group_id)) { struct iwl_rx_packet *fw_pkt = kmemdup(pkt, sizeof(*pkt) + iwl_rx_packet_payload_len(pkt), GFP_ATOMIC); if (!fw_pkt) return false; dump_data->fw_pkt = fw_pkt; return true; } return false; } static int iwl_dbg_tlv_tp_trigger(struct iwl_fw_runtime *fwrt, bool sync, struct list_head *active_trig_list, union iwl_dbg_tlv_tp_data *tp_data, bool (*data_check)(struct iwl_fw_runtime *fwrt, struct iwl_fwrt_dump_data *dump_data, union iwl_dbg_tlv_tp_data *tp_data, u32 trig_data)) { struct iwl_dbg_tlv_node *node; list_for_each_entry(node, active_trig_list, list) { struct iwl_fwrt_dump_data dump_data = { .trig = (void *)node->tlv.data, }; u32 num_data = iwl_tlv_array_len(&node->tlv, dump_data.trig, data); int ret, i; if (!num_data) { ret = iwl_fw_dbg_ini_collect(fwrt, &dump_data, sync); if (ret) return ret; } for (i = 0; i < num_data; i++) { if (!data_check || data_check(fwrt, &dump_data, tp_data, le32_to_cpu(dump_data.trig->data[i]))) { ret = iwl_fw_dbg_ini_collect(fwrt, &dump_data, sync); if (ret) return ret; break; } } } return 0; } static void iwl_dbg_tlv_init_cfg(struct iwl_fw_runtime *fwrt) { enum iwl_fw_ini_buffer_location *ini_dest = &fwrt->trans->dbg.ini_dest; int ret, i; u32 failed_alloc = 0; if (*ini_dest != IWL_FW_INI_LOCATION_INVALID) return; IWL_DEBUG_FW(fwrt, "WRT: Generating active triggers list, domain 0x%x\n", fwrt->trans->dbg.domains_bitmap); for (i = 0; i < ARRAY_SIZE(fwrt->trans->dbg.time_point); i++) { struct iwl_dbg_tlv_time_point_data *tp = &fwrt->trans->dbg.time_point[i]; iwl_dbg_tlv_gen_active_trig_list(fwrt, tp); } *ini_dest = IWL_FW_INI_LOCATION_INVALID; for (i = 0; i < IWL_FW_INI_ALLOCATION_NUM; i++) { struct iwl_fw_ini_allocation_tlv *fw_mon_cfg = &fwrt->trans->dbg.fw_mon_cfg[i]; u32 dest = le32_to_cpu(fw_mon_cfg->buf_location); if (dest == IWL_FW_INI_LOCATION_INVALID) continue; if (*ini_dest == IWL_FW_INI_LOCATION_INVALID) *ini_dest = dest; if (dest != *ini_dest) continue; ret = iwl_dbg_tlv_alloc_fragments(fwrt, i); if (ret) { IWL_WARN(fwrt, "WRT: Failed to allocate DRAM buffer for allocation id %d, ret=%d\n", i, ret); failed_alloc |= BIT(i); } } if (!failed_alloc) return; for (i = 0; i < ARRAY_SIZE(fwrt->trans->dbg.active_regions) && failed_alloc; i++) { struct iwl_fw_ini_region_tlv *reg; struct iwl_ucode_tlv **active_reg = &fwrt->trans->dbg.active_regions[i]; u32 reg_type; if (!*active_reg) continue; reg = (void *)(*active_reg)->data; reg_type = le32_to_cpu(reg->type); if (reg_type != IWL_FW_INI_REGION_DRAM_BUFFER || !(BIT(le32_to_cpu(reg->dram_alloc_id)) & failed_alloc)) continue; IWL_DEBUG_FW(fwrt, "WRT: removing allocation id %d from region id %d\n", le32_to_cpu(reg->dram_alloc_id), i); failed_alloc &= ~le32_to_cpu(reg->dram_alloc_id); fwrt->trans->dbg.unsupported_region_msk |= BIT(i); kfree(*active_reg); *active_reg = NULL; } } void _iwl_dbg_tlv_time_point(struct iwl_fw_runtime *fwrt, enum iwl_fw_ini_time_point tp_id, union iwl_dbg_tlv_tp_data *tp_data, bool sync) { struct list_head *hcmd_list, *trig_list; if (!iwl_trans_dbg_ini_valid(fwrt->trans) || tp_id == IWL_FW_INI_TIME_POINT_INVALID || tp_id >= IWL_FW_INI_TIME_POINT_NUM) return; hcmd_list = &fwrt->trans->dbg.time_point[tp_id].hcmd_list; trig_list = &fwrt->trans->dbg.time_point[tp_id].active_trig_list; switch (tp_id) { case IWL_FW_INI_TIME_POINT_EARLY: iwl_dbg_tlv_init_cfg(fwrt); iwl_dbg_tlv_tp_trigger(fwrt, sync, trig_list, tp_data, NULL); break; case IWL_FW_INI_TIME_POINT_AFTER_ALIVE: iwl_dbg_tlv_apply_buffers(fwrt); iwl_dbg_tlv_send_hcmds(fwrt, hcmd_list); iwl_dbg_tlv_tp_trigger(fwrt, sync, trig_list, tp_data, NULL); break; case IWL_FW_INI_TIME_POINT_PERIODIC: iwl_dbg_tlv_set_periodic_trigs(fwrt); iwl_dbg_tlv_send_hcmds(fwrt, hcmd_list); break; case IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF: case IWL_FW_INI_TIME_POINT_MISSED_BEACONS: case IWL_FW_INI_TIME_POINT_FW_DHC_NOTIFICATION: iwl_dbg_tlv_send_hcmds(fwrt, hcmd_list); iwl_dbg_tlv_tp_trigger(fwrt, sync, trig_list, tp_data, iwl_dbg_tlv_check_fw_pkt); break; default: iwl_dbg_tlv_send_hcmds(fwrt, hcmd_list); iwl_dbg_tlv_tp_trigger(fwrt, sync, trig_list, tp_data, NULL); break; } } IWL_EXPORT_SYMBOL(_iwl_dbg_tlv_time_point);