1 files changed, 215 insertions, 9 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
index 3d7f8ff8ef58..651e1fee2763 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
@@ -104,12 +104,27 @@ dbg_ver_table[IWL_DBG_TLV_TYPE_NUM] = {
 	[IWL_DBG_TLV_TYPE_TRIGGER]	= {.min_ver = 1, .max_ver = 1,},
 };
 
+static int iwl_dbg_tlv_add(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(struct iwl_ucode_tlv *tlv)
 {
 	struct iwl_fw_ini_header *hdr = (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->tlv_version);
+	u32 ver = le32_to_cpu(hdr->version);
 
 	if (ver < dbg_ver_table[tlv_idx].min_ver ||
 	    ver > dbg_ver_table[tlv_idx].max_ver)
@@ -118,27 +133,169 @@ static bool iwl_dbg_tlv_ver_support(struct iwl_ucode_tlv *tlv)
 	return true;
 }
 
+static int iwl_dbg_tlv_alloc_debug_info(struct iwl_trans *trans,
+					struct iwl_ucode_tlv *tlv)
+{
+	struct iwl_fw_ini_debug_info_tlv *debug_info = (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,
+				       struct iwl_ucode_tlv *tlv)
+{
+	struct iwl_fw_ini_allocation_tlv *alloc = (void *)tlv->data;
+	u32 buf_location = le32_to_cpu(alloc->buf_location);
+	u32 alloc_id = le32_to_cpu(alloc->alloc_id);
+
+	if (le32_to_cpu(tlv->length) != sizeof(*alloc) ||
+	    (buf_location != IWL_FW_INI_LOCATION_SRAM_PATH &&
+	     buf_location != IWL_FW_INI_LOCATION_DRAM_PATH))
+		return -EINVAL;
+
+	if ((buf_location == IWL_FW_INI_LOCATION_SRAM_PATH &&
+	     alloc_id != IWL_FW_INI_ALLOCATION_ID_DBGC1) ||
+	    (buf_location == IWL_FW_INI_LOCATION_DRAM_PATH &&
+	     (alloc_id == IWL_FW_INI_ALLOCATION_INVALID ||
+	      alloc_id >= IWL_FW_INI_ALLOCATION_NUM))) {
+		IWL_ERR(trans,
+			"WRT: Invalid allocation id %u for allocation TLV\n",
+			alloc_id);
+		return -EINVAL;
+	}
+
+	trans->dbg.fw_mon_cfg[alloc_id] = *alloc;
+
+	return 0;
+}
+
+static int iwl_dbg_tlv_alloc_hcmd(struct iwl_trans *trans,
+				  struct iwl_ucode_tlv *tlv)
+{
+	struct iwl_fw_ini_hcmd_tlv *hcmd = (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,
+				    struct iwl_ucode_tlv *tlv)
+{
+	struct iwl_fw_ini_region_tlv *reg = (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);
+
+	if (le32_to_cpu(tlv->length) < sizeof(*reg))
+		return -EINVAL;
+
+	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;
+	}
+
+	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,
+				     struct iwl_ucode_tlv *tlv)
+{
+	struct iwl_fw_ini_trigger_tlv *trig = (void *)tlv->data;
+	u32 tp = le32_to_cpu(trig->time_point);
+
+	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))
+		trig->occurrences = cpu_to_le32(-1);
+
+	return iwl_dbg_tlv_add(tlv, &trans->dbg.time_point[tp].trig_list);
+}
+
+static int (*dbg_tlv_alloc[])(struct iwl_trans *trans,
+			      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, struct iwl_ucode_tlv *tlv,
 		       bool ext)
 {
 	struct iwl_fw_ini_header *hdr = (void *)&tlv->data[0];
 	u32 type = le32_to_cpu(tlv->type);
-	u32 pnt = le32_to_cpu(hdr->apply_point);
 	u32 tlv_idx = type - IWL_UCODE_TLV_DEBUG_BASE;
 	enum iwl_ini_cfg_state *cfg_state = ext ?
 		&trans->dbg.external_ini_cfg : &trans->dbg.internal_ini_cfg;
+	int ret;
 
-	IWL_DEBUG_FW(trans, "WRT: read TLV 0x%x, apply point %d\n",
-		     type, pnt);
-
-	if (tlv_idx >= IWL_DBG_TLV_TYPE_NUM) {
-		IWL_ERR(trans, "WRT: Unsupported TLV 0x%x\n", type);
+	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->tlv_version));
+			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;
 	}
 
@@ -159,7 +316,41 @@ IWL_EXPORT_SYMBOL(iwl_dbg_tlv_del_timers);
 
 void iwl_dbg_tlv_free(struct iwl_trans *trans)
 {
-	/* will be used again later */
+	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);
+		}
+	}
 }
 
 static int iwl_dbg_tlv_parse_bin(struct iwl_trans *trans, const u8 *data,
@@ -205,6 +396,21 @@ void iwl_dbg_tlv_load_bin(struct device *dev, struct iwl_trans *trans)
 	release_firmware(fw);
 }
 
+void iwl_dbg_tlv_init(struct iwl_trans *trans)
+{
+	int i;
+
+	INIT_LIST_HEAD(&trans->dbg.debug_info_tlv_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);
+	}
+}
+
 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)